RU2843364C2 - Shaving heads, sets of parts, shaving razors and related methods - Google Patents

Abstract

FIELD: hand-held cutting tools.

SUBSTANCE: invention relates to razors. Shaving head comprises a frame having a side in contact with skin and a back side opposite to the side in contact with skin. Connecting section is located on rear side. Connection section is configured to connect the shaving head to the shaving handle. Connecting section comprises a first support mechanism and a second support mechanism, which are structurally different from each other. Invention also includes a shaving set and a razor.

EFFECT: providing a shaving head that can be pivotally connected to various shaving handles or connecting adapters.

15 cl, 12 dwg

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority from European Patent Application No. 21151842, filed on 15 January 2021, the contents of which are hereby incorporated herein by reference in their entirety.

AREA OF TECHNOLOGY

The present invention relates to the field of razors, in particular to a razor head, a set of parts containing a plurality of razor heads, a razor containing a razor head, and a method for assembling a razor.

PREREQUISITES FOR THE CREATION OF THE INVENTION

Razors (also known as safety razors) have a shaving head that is permanently or detachably attached to a razor handle that is oriented in the direction of shaving during use. Shaving heads typically contain one or more cutting elements, each of which contains a blade that is perpendicular to the direction of shaving. Shaving heads are also typically equipped with a guard (on the front longitudinal side of the shaving head in the direction of shaving) and a cap (on the rear longitudinal side of the shaving head in the direction of shaving). During use, the user holds the razor handle in the direction of shaving and brings the shaving head into contact with the area of skin that defines the plane of shaving.

In the field of razors, there are various models of razors available on the market, in which the razor handles and/or razor heads differ in shape, elements, aesthetics, color and/or material. On the one hand, there are razors having a razor head permanently attached to the razor handle, which can be thrown away when the razor blades wear out. On the other hand, there are razors in which the razor head is connected to the razor handle in a removable manner, so that when the razor blades wear out, the razor head can be detached, thrown away and replaced with a new razor head. In the existing state of the art, various connection mechanisms for such razors are known, including connections with forced and non-forced fixation. The razor head can also be connected to the razor handle by means of a connecting adapter, which in turn is then connected to the razor handle. In addition, there are shaving heads that can be pivotally connected to razor handles - either directly or via a connecting adapter to the razor handle, which can lead to improved shaving efficiency, since the shaving head can follow the contour of the skin. However, the shaving heads of the existing technology contain various pivoting mechanisms, so that the shaving head can only be connected to a specific type of razor handles or connecting adapters. In particular, when the shaving head is detachably connected to the razor handle or connecting adapter of a specific razor model, it may not be possible to connect it to the razor handle or connecting adapter of another razor model. However, it would be desirable to be able to connect, or more precisely pivotally connect, the shaving head to different razor handles and/or connecting adapters.

It is therefore an object of the present disclosure to provide a razor head that can be pivotally connected to various razor handles or connector adapters.

ESSENCE OF THE INVENTION

The present description relates to a shaving head defined as indicated in claim 1, to a set of parts defined as indicated in claim 13, to a razor defined as indicated in claim 14, and to a method for assembling a razor defined as indicated in claim 15. The dependent claims present advantageous embodiments of the present description.

According to the first aspect of the present description, the shaving head comprises a frame having a skin-contacting side and a back side opposite to the skin-contacting side. The connecting section is located on the back side, wherein the connecting section is designed to connect the shaving head to the razor handle. The connecting section comprises a first support mechanism and a second support mechanism that are functionally different. Due to the connecting section comprising functionally different support mechanisms, different types of razor handles (for example, disposable razor handles) can be connected to the shaving head. The shaving head according to the present description can provide improvements in terms of ergonomics and functionality .

At least one of the first and second support mechanisms may be a rotary mechanism. In embodiments, each of the first and second support mechanisms may be a rotary mechanism. In this way, the support mechanisms may support two types of rotary mechanisms in the same shaving head. The support mechanisms may provide a larger rotation range and less friction at the point of connection of the shaving head with the handle of the razor. This may result in a smoother rotary movement with better functionality. In addition, the rotation center of the shaving head relative to the handle of the razor to be connected may be better adjusted, since the space required for the connection between the shaving head and the handle of the razor may be reduced.

The shaving head may have a shaving direction x, a perpendicular direction y which is perpendicular to the shaving direction x, and a vertical direction z which is perpendicular to the shaving direction x and perpendicular to the y direction.

The frame may further comprise a front longitudinal element defining a front edge and a rear longitudinal element defining a rear edge, wherein, in particular, the shaving plane SP may be formed on the side of the frame that contacts the skin.

In embodiments, the first support mechanism may comprise a pair of arcuate support sections. The second support mechanism may comprise a pair of support cavities.

The pair of arcuate support sections and/or the pair of support cavities may extend parallel to the perpendicular direction y. In embodiments, the pair of arcuate support sections and/or the pair of support cavities may be oriented respectively in the direction of the geometric center of the shaving head in the perpendicular direction.

The connecting section may comprise a pair of first walls, which may have an arcuate shape. In embodiments, the pair of first walls may be separated and/or aligned with respect to each other with respect to the perpendicular direction y.

In embodiments, the pair of first walls may extend respectively from a position near the side portion of the frame in a perpendicular direction y to the geometric center of the shaving head.

The first pair of walls may extend along a circle relative to the support axis BA, which extends parallel to the perpendicular direction y.

A pair of support cavities may be formed between the rear side and a pair of first walls, respectively.

The pair of first walls may comprise a first arcuate support surface, which is respectively oriented substantially in the vertical direction z. In embodiments, the first arcuate support surface may have a radius of about 4.0 to 7.0 mm, in particular about 5.0 to 6.0 mm, in particular about 5.2 to 5.8 mm.

Each of the pair of first walls may comprise a stop wall which extends from the first arcuate support surface in a position near the geometric centre of the shaving head to the rear edge and the rear side, in particular at a certain angle relative to the shaving plane SP.

Each of the pair of first walls may comprise a third arcuate support surface that is oriented in the direction of the pair of support cavities. In embodiments, the third arcuate support surface may have a radius of about 2.0 to 4.0 mm, in particular about 2.5 to 3.5 mm.

The connecting section may comprise at least one projection extending from the rear side in the vertical direction z. In embodiments, the connecting section may comprise two projections extending from the rear side in the vertical direction z, wherein these two projections may be separated and/or aligned with each other with respect to the perpendicular direction y.

The first support mechanism and the second support mechanism may be formed between two projections in the perpendicular direction y. In embodiments, the pair of first walls may be located adjacently and between two projections, respectively.

In the vertical direction z and on the rear side, the connecting section may comprise a second support mechanism followed by the first support mechanism.

Each of the projections may comprise a second wall extending proximally to the end of the corresponding projection in the direction y perpendicular to the geometric center of the shaving head. The second wall may form a second arcuate support surface. In embodiments, the second arcuate support surface (213) has a radius of from about 5.0 to 8.0 mm, in particular from about 6.0 to 7.0 mm, in particular from about 6.2 to 6.9 mm.

The first arcuate support surface may extend along a circle that is larger than the circle along which the second arcuate support surface extends.

Starting from the position on the rear side in the vertical direction z, the connecting section may comprise a pair of support cavities, followed by a pair of first walls, followed by a pair of arcuate support sections, followed by a pair of second walls.

In embodiments, the second arcuate support surface may extend parallel to the first arcuate support surface and/or the third arcuate support surface.

A pair of arcuate support sections may be formed between a pair of first walls and a pair of second walls. In particular, a pair of arcuate support sections may be formed between a first arcuate support surface and a second arcuate support surface.

Each of the pair of first walls may have a first length l1, and each of the pair of second walls may have a second length l2, measured parallel to the perpendicular direction y. In embodiments, the first length l1 may be greater than the second length l2.

In embodiments, each of the pair of first walls may comprise a first wall section having a first length l1 and a second wall section having a third length l3. In particular, the first length l1 may be greater than the third length l3.

In relation to the shaving plane SP, the first arcuate support surface and/or the second arcuate support surface may have a convex shape.

Each of the pair of support cavities may comprise a fourth arcuate support surface opposite the third arcuate support surface. In particular, with respect to the shaving plane SP, the third arcuate support surface may have a convex shape, and the fourth arcuate support surface may have a concave shape.

Each support cavity may comprise a lower wall extending from a position near the front edge to the geometric center of the shaving head at an angle δ measured between the lower wall and the shaving plane SP. The lower wall may extend in a perpendicular direction y to the geometric center of the shaving head.

Each support cavity may comprise a side wall extending from the bottom wall at a position near the geometric center of the shaving head in a substantially vertical z direction. The side wall may extend in a perpendicular y direction to the geometric center of the shaving head.

Each support cavity may be defined by a first wall, in particular a third arcuate support surface, a fourth arcuate support surface, a bottom wall and a side wall.

In embodiments, the connecting section may comprise a cam section. The cam section may comprise a cam wall extending from the rear side in the vertical z direction. The cam wall may comprise a cam surface that extends parallel to the perpendicular y direction.

In embodiments, the rear longitudinal element may comprise a trimming unit provided at the rear edge.

In embodiments, the shaving head may further comprise a protective cover configured to be detachably attached to the shaving head.

The shaving head may further comprise a connecting adapter, wherein the connecting section is detachably connected to the connecting adapter by means of a rotary or non-rotary connection, in particular by means of the first and/or second support mechanisms.

The connecting adapter can be configured to rotate around the support axis BA relative to the connecting section. The connecting adapter can be configured to rotate between a first position related to the initial position and at least one second position related to the rotational position.

In embodiments, starting from the first position, the connecting adapter can be configured to rotate in a range of rotation angles of 0°<μ≤50°, wherein, in particular, the connecting adapter can be configured to rotate in one direction. Alternatively, starting from the first position, the connecting adapter can be configured to rotate in a range of rotation angles of -25°≤μ≤+25°, wherein, in particular, the connecting adapter can be configured to rotate in two directions.

In embodiments, the connecting adapter may comprise a biasing element configured to bias the connecting adapter relative to the connecting section around the support axis BA. The biasing element may be a spring-loaded pusher configured to move in the direction of the longitudinal axis x1 of the connecting adapter. In particular, the biasing element may comprise a cam follower configured to engage with a cam surface. In embodiments, the biasing element may be configured to forcibly move the shaving head to the first position.

The connecting adapter may comprise a section of the housing having a first connecting section located at the first end of the connecting housing. In particular, the first connecting section may be designed with the possibility of connecting to a connecting section, in particular to the first support mechanism and/or the second support mechanism.

In embodiments, the housing section may have a second connecting section provided at the end of the housing section opposite the first connecting section, wherein the second connecting section may be configured to connect to the razor handle.

The second connecting section may comprise an opening configured to receive the first end of the razor handle. In embodiments, the opening may comprise at least one retainer provided on the wall of the opening.

The connecting adapter may have a longitudinal axis x1 and a perpendicular axis y1, which is perpendicular to the longitudinal axis x1, where both axes pass through the geometric center of the connecting adapter.

In embodiments, the first connecting portion may comprise a pair of support pins configured to be inserted into a pair of support cavities. Each support pin of the pair of support pins may extend outwardly parallel to the perpendicular axis y1 and parallel to the longitudinal axis x1 from the body portion. In embodiments, each of the support pins may have a V-shape when viewed in the x1-z1 plane defined by the longitudinal axis x1 and the vertical axis z1, which may be perpendicular to the longitudinal axis x1 and perpendicular to the y1 axis.

Each of the support tenons may comprise a lower side and an upper side, and the V-shape of each of the support tenons may have an angle λ.

The rotation angle µ can be measured between the bottom side and the bottom wall and/or between the top side and the side wall.

In the first position, the lower side may be parallel to the lower wall and/or may rest on the lower wall. Additionally or alternatively, in at least one second position, the lower side may lie at an angle of rotation µ, measured between the lower wall and the lower side.

Each of the support pins may comprise a first arcuate surface of the support pin and a second arcuate surface of the support pin opposite the first arcuate surface of the support pin. With respect to the connecting body, the first arcuate surface of the support pin may have a convex shape, and the second arcuate surface of the support pin may have a concave shape.

When a pair of support tenons are inserted into a pair of support cavities, a first arcuate surface of the support tenon may rest on a fourth arcuate support surface, and a second arcuate surface of the support tenon may rest on a third arcuate support surface.

In other embodiments, the first connecting section may comprise a pair of arcuate supports configured to be inserted into a pair of arcuate support sections. Each arcuate support of the pair of arcuate supports may extend outward from the section of the housing parallel to the perpendicular axis y1.

Each arc-shaped support of a pair of arc-shaped supports may have a lower side, an upper side, a first side edge and a second side edge. With respect to the connecting body, the lower side may have a concave shape and the upper side may have a concave shape.

When a pair of arcuate supports are inserted into a pair of arcuate support sections, the lower side may rest on a first arcuate support surface, and the upper side may rest on a second arcuate support surface. In embodiments, the lower side may be arcuate and have a radius of about 4.0 to 7.0 mm, in particular about 5.0 to 6.0 mm, in particular about 5.2 to 5.8 mm. Additionally or alternatively, the upper side may be arcuate and have a radius of about 5.0 to 8.0 mm, in particular about 6.0 to 7.0 mm, in particular about 6.2 to 6.9 mm.

In embodiments, the connecting adapter may comprise an adapter flange configured to rest on the flange of the connecting section, in particular in the first position.

In embodiments, in at least one second position, the second side edge can rest against the stop wall.

In one embodiment, the range of the rotation angle µ may be measured between the stop wall and the second side edge.

The frame may comprise a plurality of guides for the cutting element, forming a plurality of support grooves for the cutting element, wherein each support groove for the cutting element may be designed with the possibility of accommodating a longitudinal cutting element. The frame may additionally comprise a plurality of longitudinal cutting elements, wherein each cutting element may be located in a corresponding support groove for the cutting element.

In embodiments, the frame may comprise at least one C-shaped cutting element retainer, configured to be mounted on the frame at a lateral section in the perpendicular direction y. At least one cutting element retainer may be configured to retain a plurality of cutting elements when inserted into a plurality of support grooves for the cutting element.

According to the second aspect of the present description, a set of parts is proposed, which comprises a holder of a razor cartridge, comprising a plurality of razor heads in accordance with any of the embodiments described above. The set of parts further comprises a razor handle.

According to a third aspect of the present description, a razor comprises a razor head according to any of the above-described embodiments and a razor handle, wherein the razor head is connected to the razor handle.

The razor handle can be connected to the razor head by means of a connecting adapter. In embodiments, the connecting adapter can be made integral with the razor handle. Alternatively, the connecting adapter can be detachably connected to the razor handle.

In embodiments, the razor handle may comprise a retention and/or release mechanism configured to connect the razor head to the razor handle and/or separate the razor head from the razor handle.

According to a fourth aspect of the present description, a method for assembling a razor is proposed, which includes the steps of providing a razor handle, providing a razor head in accordance with any of the embodiments described above, and connecting the razor handle to the razor head.

In one embodiment, the connecting adapter may be formed integrally with the razor handle, and the connection of the razor handle to the shaving head may include connecting the razor handle to the connecting section, in particular to the first support mechanism or the second support mechanism, by means of the connecting adapter.

In another embodiment, the connecting adapter may be a separate component, and connecting the razor handle to the razor head may include connecting the connecting adapter to the connecting section, in particular to the first support mechanism or the second support mechanism, and connecting the connecting adapter to the razor handle.

BRIEF DESCRIPTION OF GRAPHIC MATERIALS

Other characteristics will be apparent from the accompanying drawings, which form part of this description. The drawings are intended to further explain this description and to enable its practical application by a person skilled in the art. However, the drawings are provided as non-limiting examples. Common reference numbers in different figures indicate similar or analogous features.

Fig. 1A-1D are schematic views of a razor and a razor head in accordance with the present description;

Fig. 2A-2C are schematic views of the razor, wherein the razor head is rotatable between a first and a second position;

Fig. 3 is a spatially exploded view of the components of a shaving head according to the first aspect of the present description;

Fig. 4A-4C are an isometric view of the shaving head from the rear side, a side view of the shaving head from the front edge side, and a front view of the shaving head from the skin contact side;

Fig. 5 is a partial sectional view of the shaving head in position between the cam section and the first wall parallel to the x-z plane;

Fig. 6A–6Drepresent schematic views of a shaving head according to the first aspect of the present description and partial sectional views of the shaving head along sections A-A and B-B shown in Fig. 6A;

Fig. 7A and 7Brepresent a schematic view of the rear side of the shaving head and a partial sectional view of the shaving head in a position between the cam section and the projection in front of the first wall;

Fig. 8 is a schematic view of a longitudinal cutting element;

Fig. 9A–9Drepresent schematic views of a connecting adapter according to a second embodiment;

Fig. 10A-10D are schematic views of a connecting adapter according to a second embodiment, connected to a shaving head via a second support mechanism;

Fig. 11A–11Drepresent schematic views of a connecting adapter according to a first embodiment;

Fig. 12A-12D are schematic views of a connecting adapter according to a first embodiment, connected to a shaving head via a first support mechanism;

DETAILED DESCRIPTION

Embodiments of a shaving head, a set of parts, a razor and a method for assembling a razor in accordance with the present description will be described below with reference to graphic materials.

Fig. 1A-1D show schematic views of a razor 1 and a shaving head 10 according to the present description. The razor 1 comprises a shaving head 10 and a razor handle 30, wherein the shaving head 10 is connected to the razor handle 30 (see, for example, Fig. 1A). The razor handle 30 comprises a first end 31 and a second end 32. The razor handle 30 is connected to the shaving head 10 by means of a connecting adapter 20a, 20b. As shown in Fig. 1A and 1C, the connecting adapter 20a, 20b can be formed integrally with the razor handle 30. Alternatively, the connecting adapter 20a, 20b can be removably connected to the razor handle 30 (see Fig. 1B and 1D). In embodiments, the shaving head 10 can be connected to the handle 30 of the shaver, in particular to the connecting adapter 20a, 20b, by means of a positive locking. However, the connection with a positive locking can allow rotation of the shaving head 10 relative to the handle 30 of the shaver and/or the connecting adapter 20a, 20b, which will be described in more detail below.

In use (wherein the shaving head 10 can be connected to the handle 30 of the razor), the user holds the handle 30 of the razor in the shaving direction x and brings the shaving head 10 into contact with the skin area. In the examples, the shaving plane SP is defined by a tangent line intersecting the first and second points of contact with the skin, for example, the cutting elements of the shaving head 10. In other examples, the shaving plane SP can be approximated as a tangent line between the highest points on the skin-contacting surface of the shaving head 10, for example the flat surface between the upper part of the protective element and the upper part of the cap of the shaving head 10. During shaving, moving the handle 30 of the razor causes the cutting elements of the shaving head 10 to move along the shaving plane SP in the shaving direction x, which ensures that the cutting elements remove unwanted hair.

In the following description and claims, the term "cutting element" means a component of the shaving head 10 that, when in use, contacts the user's skin and cuts protruding hair. The cutting element may be a razor blade having a blade with a cutting edge glued or laser-welded to a separate curved support element. The curved support element may be mounted in a support groove for the cutting element between two opposing guides for the cutting element, such as projections from a cross member of a frame of a razor cartridge. The blade may be attached to a front surface of the curved support element facing the user of the razor cartridge during use. Alternatively, the blade may be attached to a front surface of the curved support element facing away from the user of the razor cartridge during use. In this latter case, each cutting element has two points of contact with the user's skin (the edge of the blade and the distal end of the curved support element), in order to thereby reduce the pressure on the user's skin. Alternatively, the cutting element may be a "curved blade". This integral cutting element has a radius-rounded bend and a cutting edge formed at the distal end of the radius-rounded bend. The movable cutting element or the movable curved blade may be a cutting element that is designed with the possibility of moving in the housing, in particular in the support groove for the cutting element in a direction perpendicular to the shaving plane. The movable cutting element can be biased by at least one biasing element, which is designed with the possibility of applying a biasing force to the corresponding cutting element in the direction of the shaving plane, wherein the cutting element is in the initial position. In embodiments, at least one biasing element may be a plurality of elastic fingers. In the initial position, the cutting edges of the cutting elements may rest on the corresponding section of the limiter. The "multitude of cutting elements" may consist of cutting elements of the same type or may contain at least one curved blade or, for example, a blade of another type.

In the following description and claims, the term "front portion" means the side of the shaving head 10 that first contacts the user's skin during normal use. In the following description and claims, the term "rear portion" means the side of the shaving head 10 that last contacts the user's skin during normal use.

Fig. 4A-4C show schematic views of the shaving head 10. The shaving head 10 comprises a frame 100 having a skin-contacting side 110 and a back side 120 opposite the skin-contacting side 110. During shaving, the skin-contacting side 110 may face the user's skin. A connecting section 200 is located on the back side 120, wherein the connecting section 200 is configured to connect the shaving head 10 to the handle 30 of the razor. The connecting section 200 comprises a first support mechanism 210 and a second support mechanism 220, which are functionally different from each other. Thanks to the connecting section 200, which comprises functionally different support mechanisms 210, 220, different types of razor handles (for example, disposable razor handles) can be connected to the shaving head 10. The shaving head 10 according to the present description may provide improvements in terms of ergonomics and functionality.

The functional difference does not exclude the possibility that the two support mechanisms 210, 220 are both, for example, rotary mechanisms. The functional difference may rather mean that the support mechanisms 210, 220 differ at least slightly in design, which does not only mean a mirror image arrangement of a component, but also a "real" design difference, and/or that the support mechanisms 210, 220 are designed to interact with another component, for example the razor handle 30, in particular with the connecting adapter 20a, 20b, in at least a slightly different manner, respectively. For example, the support surfaces may be different for the respective support mechanism 210, 220 when connected to another component, such as the connecting adapter 20a, 20b.

At least one of the first and second support mechanisms 210, 220 may be a rotary mechanism. In particular, each of the first and second support mechanisms 210, 220 may be a rotary mechanism. Thus, the support mechanisms 210, 220 may support different types of rotary mechanisms in the same shaving head 10. The support mechanisms 210, 220 may provide a larger range of rotation and less friction when the shaving head 10 is connected to the handle 30 of the razor. This may result in a smoother rotary movement with better functionality. In addition, the support axis BA of the shaving head 10 relative to the razor handle 10 to which the head is to be connected can be better adjusted since the space required for the connection between the shaving head 10 and the razor handle 30 (and/or the connecting adapter 20a, 20b) can be reduced.

As shown, for example, in Fig. 4B and 4C, the shaving head 10 has a shaving direction x, a perpendicular direction y which is perpendicular to the shaving direction x, and a vertical direction z which is perpendicular to the shaving direction x and perpendicular to the y direction.

Fig. 3 is a exploded view of the shaving head 10 according to the first aspect of the present description, and Fig. 5 is a detailed schematic view of the shaving head 10. As shown in Figs. 3-5, the frame 100 further comprises a front longitudinal member defining a front edge 130, a rear longitudinal member defining a rear edge 140, and a side portion 150, wherein, in particular, the shaving plane SP is defined on the skin-contacting side 110 of the frame 100. The shaving direction x and the perpendicular direction y may lie in the shaving plane SP, which is located on the skin-contacting side 110 or in the geometric center of the frame 100.

The frame 100 comprises a plurality of cutting element guides 160a-d that define a plurality of cutting element support grooves 161a-d. Each cutting element support groove 161a-d is configured to receive a longitudinal cutting element 170a-d. The frame 100 may further comprise a plurality of longitudinal cutting elements 170a-d, wherein each cutting element 170a-d is located in a corresponding cutting element support groove 161a-d. Detailed embodiments of the plurality of cutting elements 170a-d will be described with reference to Fig. 8 below. Although four cutting elements 170a-d are shown in the figures, it should be noted that the shaving head 10 may comprise at least one cutting element, including, without limitation, one, two, three, four, five, six, seven or more cutting elements.

Fig. 8 shows a schematic side view of an embodiment of a cutting element 170 of a plurality of cutting elements 170a-d. As shown in Fig. 8, the cutting element 170 may be a subassembly comprising a longitudinal blade 172 mounted on a longitudinal blade holder 171. The longitudinal blade holder 171 comprises a substantially elongated lower portion 175, in particular a flat lower portion 175, suitable for being retained in at least one retaining groove of the frame 100, a substantially elongated upper portion 173, in particular a flat upper portion 173, and a radius-curved portion 174. The curved portion 174 is located between the lower portion 175 and the upper portion 173 and defines an angle A of entry of the blade 172 relative to the shaving plane SP. The upper section 173 comprises an inner surface 177. The angle A of approach defines the angle of inclination of the inner surface 177 of the upper section 173 relative to the blade holder 171 (in particular, the lower section 175). In one example, the angle A is an acute angle, in particular from 60 to 75 degrees, in particular from 65 to 70 degrees, in particular 68 degrees. The blade 172 is mounted on the inner surface 177 of the blade holder 171, in particular on the upper section 173. In embodiments, the section 174 curved along the radius may have an inner radius of curvature RI of at least 0.1 mm. The section 174 curved along the radius may have an inner radius of curvature RI of less than 0.9 mm. The minimum recommended inner radius of curvature RI of the metal sheet should be at least the same as its thickness T2, where T2 is the thickness of the blade holder 171. A safety factor may be applied to the thickness of the blade holder 171. As a result of multiplying the safety factor by the preferred thickness T2, the inner radius of curvature RI may be approximately 0.15 to 0.30 mm, in particular 0.18 to 0.25 mm and in particular 0.19 to 0.21 mm. The radius-curved section 174 may have an outer radius of curvature RO, which may be approximately 0.20 to 0.50 mm, in particular 0.30 to 0.40 mm and in particular 0.34 to 0.36 mm.

In the examples, the cutting element 170 shown as an example may comprise a blade holder 171 including an upper portion 173 having an inner surface 171 which faces away from the shaving plane SP during use and a blade 172 attached to the inner surface 177 of the upper portion 173. In other words, the blade 172 may be mounted "under the blade holder 171". The phrase "under the blade holder" for the purposes of the present description and claims means the side of the blade holder 171 which is farthest from the shaving plane SP (and/or from the skin) of the user when the shaving head 10 is used. The blade 172 may include a cutting edge 176. In embodiments and as described above, one, two, three, four, five, six, seven or more cutting elements 170 may be provided. If a plurality of cutting elements 170 are provided, one or more cutting elements 170 may comprise a blade holder 171 including an upper portion 173 having an inner surface 177 which, when used, faces away from the shaving plane SP and a blade 176 attached to the inner surface 177 of the upper portion 173, as described above. In embodiments, each of the cutting elements 170 may comprise a blade holder 171 including an upper portion 173 having an inner surface 177 which, when used, faces away from the shaving plane SP and a blade 176 attached to the inner surface 177 of the upper portion 173, as described above.

In one embodiment, the shaving head 10 may comprise a plurality of cutting elements 170a-d oriented (and/or configured to shave) in the shaving direction x and/or toward the front edge 130. In embodiments, the plurality of cutting elements 170a-d may be attached to the shaving head, in particular to the frame 100, in particular immovably located in corresponding support grooves 161a-d for the cutting element. In other words, these cutting elements may be immovable in the shaving head 10 (in particular in the frame 100). However, in embodiments, all of the cutting elements of the plurality of cutting elements 170a-d may be configured to move within the shaving head 10, in particular in the corresponding cutting element support grooves 161a-d, or in another embodiment, some of the cutting elements of the plurality of cutting elements 170a-d may be configured to move while others may be stationary.

The inner surface 177 may be the lower surface of the blade holder 171 or, in other words, the surface of the blade holder 171 that is opposite the upper portion (in particular, the upper side) of the blade holder 171, in particular the upper portion 173. The phrase "upper portion of the blade holder" for the purposes of the present description and claims means the side of the blade holder 171 closest to the shaving plane SP (and/or to the skin) of the user when the shaving head 10 is used.

The blade holder 171 can be made of a flat sheet metal blank, which is bent before being connected by welding the blade 172 to the inner surface 177 of the blade holder 171 at the upper section 173. The flat sheet metal blank can be obtained from a metal wire that has been flattened, i.e., in a rolling process. The lower section 175 can have a length L4 of at least 1.0 mm. In embodiments, the length L4 can be from 1.1 to 1.8 mm, in particular from 1.20 to 1.40 mm, in particular from 1.20 to 1.25 mm. The upper section 173 can have a length L5 of at least 0.50 mm. In embodiments, the length L5 may be from 0.50 to 0.90 mm, in particular from 0.60 to 0.85 mm, in particular from 0.74 to 0.80 mm. The blade 172 has a flat connecting section of thickness T1, which may be about 0.1 mm (for example, from 0.04 to 0.11 mm). In embodiments, the thickness T1 may be from 0.06 to 0.09 mm, in particular from 0.07 to 0.08 mm. The total length L2 of the blade 172 between the cutting edge 176 of the blade 172 and the opposite rear edge of the blade 172 may be about 1 mm (for example, from 0.8 to 1.3 mm). In embodiments, the total length L2 of the blade 172 may be from 0.90 to 1.20 mm, in particular from 1.06 to 1.16 mm. The flat connecting portion of the blade 172, which is in contact with the inner surface 177 of the upper portion 173 of the blade holder 171, which faces away from the shaving plane SP during use, may have a length L1 that is approximately 0.49 mm +/- 0.1 mm. However, in embodiments, the length L1 may be from 0.30 to 0.90 mm, in particular from 0.40 to 0.70 mm. The distance between the cutting edge 176 and the rounded edge of the upper portion 173, measured parallel to the blade 172, in particular the connecting portion, may be approximately 0.3 mm. In this manner, a secure retention of the blade on the lower side of the blade holder 171 (the inner surface 177 of the blade holder 171) can be ensured.

In one example, the height H of the exemplary cutting element 170 may be from 1.75 to 2.00 mm, in particular from 1.84 to 1.92 mm. In other embodiments, the height H may be from 2.53 to 2.63 mm, in particular about 2.58 mm. In one example, the front end of the blade holder 171, in particular the upper portion 173, may be rounded or chamfered to improve the sliding properties of the cutting element 170. In one example, the blade 172 may be located on the inner surface 177 of the blade holder 171 to adjust the exposure E of the cutting edge 176 in a positive or negative direction relative to the shaving plane SP. The exposure is a measure of how far the cutting edge 176 protrudes above or is lowered below the end of the blade holder 171. In one example, the blade 172 can be positioned such that its exposure E relative to the shaving plane SP is in the range from -80 to +80 μm, in particular, the exposure is about -75 μm, -65 μm, -60 μm, -55 μm, -50 μm, -45 μm, -40 μm, -35 μm, -30 μm, -25 μm, -20 μm, -15 μm, -10 μm, -5 μm, 0 μm, 5 μm, 10 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, 50 μm, 55 μm, 60 μm, 65 μm, 70 μm or 75 μm. The length L3 of the cutting element 170, measured between the cutting edge 176 and the outer surface of the lower portion 175 of the blade holder 171, can be approximately 1.0 mm (for example, from 0.9 to 1.6 mm). The blade 172 can be fixed to the inner surface 177 of the blade holder 171 by any known method, such as, without limitation, laser spot welding. In examples, the blade 172 can be fixed to the inner surface 177 of the blade holder 171 by a plurality of spot welds (for example, from ten to sixteen spot welds), distributed along the longitudinal dimension of the blade holder 171. Each of the spot welds can be performed on the inner surface of the blade. Alternatively, each of the spot welds may be formed on the outer surface of the blade holder 171 or may be formed in both of the specified locations.

When shaving, the blade holder(s) 171 of the cutting elements 170a–d can be brought into contact with the skin (shaving plane SP) in addition to the cutting edges 176 of the blade 172. In this way, the number of points of contact of the shaving head 10 with the skin increases up to two times. The amount of pressure exerted on the skin area by each cutting edge 176 can be significantly reduced, which leads to a smaller number of cases of skin damage ("cuts") and a more comfortable shave. The blade 172 is mounted on the inner surface 177 of the blade holder 171 in such a way that the blade holder 171 simultaneously contacts the skin and the cutting edge 176 of the blade 172 during use. This means that the areas of the blade holder 171 that come into contact with the skin reduce or minimize the "skin bump", thereby reducing the risk of nicks and cuts. Another effect is that the life of the blades can be extended since less pressure is applied to the skin, resulting in a less aggressive shave, and therefore the blades wear out at a slower rate.

As shown in Fig. 3, the frame 100 comprises at least one C-shaped retainer 180 of the cutting element, configured to be mounted on the side portion 150 of the frame 100 in the perpendicular direction y. The at least one retainer 180 of the cutting element is configured to retain a plurality of cutting elements 170a-d when inserted into a plurality of supporting grooves 161a-d for the cutting element. In embodiments, the at least one retainer 180 of the cutting element can be connected to the side portion 150 of the frame 100 by means of a positively locking connection.

Fig. 6A-6D are schematic views of the shaving head 10 according to the first aspect of the present description and partial sectional views of the shaving head along sections A-A and B-B shown in Fig. 6A. Fig. 7A and 7B are schematic views of the rear side of the shaving head and partial sectional views of the shaving head in a position between the cam section and the projection in front of the first wall. As shown in Fig. 6A-7D, the first support mechanism 210 comprises a pair of arcuate support sections 211. The arcuate support sections 211 of this pair are separated from each other and/or aligned with each other in the perpendicular direction y. The second support mechanism 220 comprises a pair of support cavities 221. The arcuate support cavities 212 of this pair are separated from each other and/or aligned relative to each other in the perpendicular direction y.

The pair of arcuate support sections 211 and/or the pair of support cavities 221 extend parallel to the perpendicular direction y. In particular, the pair of arcuate support sections 211 and/or the pair of support cavities 221 are respectively oriented in the direction of the geometric center of the shaving head 10 in the perpendicular direction y.

As best shown in Fig. 6A-6D, the connecting section 200 comprises a pair of first walls 203 which have an arcuate shape, wherein, in particular, the first walls 203 of this pair are separated from each other and/or aligned with each other with respect to the perpendicular direction y. The pair of first walls 203 respectively extends from a position near the side section 150 in the perpendicular direction y to the geometric center of the shaving head 10. The pair of first walls 203 extends circumferentially with respect to a support axis BA which extends parallel to the perpendicular direction y. The support axis BA will be described in more detail below. With respect to the skin-contacting side 110, the pair of first walls 203 can have a convex shape. The pair of first walls 203 extends from a position near the front edge 130 to the geometric center of the shaving head 10 in the shaving direction x. A pair of support cavities 221 are formed between the rear side 120 and the pair of first walls 203, respectively.

The pair of first walls 203 comprises a first arcuate support surface 212, which is oriented substantially in the vertical direction z, respectively. In embodiments, the first arcuate support surface 212 can have a radius of about 4.0 to 7.0 mm, in particular from about 5.0 to 6.0 mm, in particular from about 5.2 to 5.8 mm. Furthermore, each of the pair of first walls 203 comprises a third arcuate surface 224, which is oriented in the direction of the pair of support cavities 221. In embodiments, the third arcuate support surface 224 can have a radius of about 2.0 to 4.0 mm, in particular from about 2.5 to 3.5 mm.

As best shown in Fig. 7B, each of the pair of first walls 203 comprises a stop wall 214 which extends from the first arcuate support surface 212 in a position near the geometric center of the shaving head 10 to the rear edge 140 and the rear side 120, in particular at a certain angle relative to the shaving plane SP.

The connecting section 200 comprises at least one projection 202 extending from the rear side 120 in the vertical direction z. In one embodiment, only one projection 202 may extend from the rear side 120 of the frame 100. In this case, the projection 202 may be located in the middle, in particular in the geometric center of the shaving head 10 with respect to the perpendicular direction y near the front edge 130 and/or parallel to the side portion 150 of the frame 100. A pair of support cavities 221 and a pair of arcuate support sections 211 may be provided in the perpendicular direction y on each side of the projection 202. In this embodiment, the pair of support cavities 221 and the pair of arcuate support sections 211 may be respectively oriented toward the side portion 150 in the perpendicular direction y.

In embodiments such as those shown in Fig. 4A to 7B, the connecting section 200 comprises two projections 202a, 202b extending from the rear side 120 in the vertical direction z, wherein the two projections 202a, 202b are separated and/or aligned with each other with respect to the perpendicular direction y. The two projections 202a, 202b can only operate when the first support mechanism 210 is used, such as when the shaving head 10 is connected to the connecting adapter 20b via the first support mechanism 210. Their functionality is to guide and support the connecting adapter 20b in a stationary state during the rotary movement. The first support mechanism 210 and/or the second support mechanism 220 are formed between the two projections 202a, 202b in the perpendicular direction y. In the perpendicular direction y, the pair of first walls 203 are respectively located adjacent and between two projections 202a, 202b.

As shown in Fig. 6C and 7B, in the vertical direction z and from the rear side 120, the connecting section 200 comprises a second support mechanism 220, which is followed by a first support mechanism 210. Each of the projections 202a, 202b comprises a second wall 204 extending proximally to the end 205 of the corresponding projection 202a, 202b in the perpendicular direction y to the geometric center of the shaving head 10, wherein the second wall 204 defines a second arcuate support surface 213. In embodiments, the second arcuate support surface 213 can have a radius from about 5.0 to 8.0 mm, in particular from about 6.0 to 7.0 mm, in particular from about 6.2 to 6.9 mm. The first arcuate support surface 212 extends along a circumference which is larger than the circumference along which the second arcuate support surface 213 extends. Starting from the position on the rear side 120 in the vertical direction z, the connecting section 200 comprises a pair of support cavities 221, followed by a pair of first walls 203, followed by a pair of arcuate support sections 211, followed by a pair of second walls 204. The pair of arcuate support sections 211 is formed between the pair of first walls 203 and the pair of second walls 204, in particular between (or by means of) the first arcuate support surface 212 and the second arcuate support surface 213. With respect to the shaving plane SP (and/or the skin-contacting side 110), the first arcuate support surface 212 and/or the second arcuate support surface 213 have a convex shape.

In the embodiments shown, the second arcuate support surface 213 extends parallel to the first arcuate support surface 212 and/or the third arcuate support surface 224. In other embodiments, the second arcuate support surface 213 may not extend parallel to the first arcuate support surface 212 and/or the third arcuate support surface 224.

As shown in Fig. 7A, each of the pair of first walls 203 has a first length l1, and each of the pair of second walls 204 has a second length l2, measured parallel to the perpendicular direction y. In the embodiments shown, the first length l1 is greater than the second length l2. In embodiments, each of the pair of first walls 203 may comprise a first wall portion 203a having a first length l1, and a second wall portion 203b having a third length (l3), wherein, in particular, the first length l1 may be greater than the third length l3. In these embodiments, the bead 208 is formed between the first wall portion 203a and the second wall portion 203b. When the shaving head 10 is connected to the connecting adapter 20b, the bead 208 may function as a limiter, as will be described below. The first section 203a of the wall can extend along a circumference α measured relative to the support axis BA and between the flange 208 and the lower wall 222. In the initial position of the shaving head (in the non-working state), the component of the connecting adapter 20b, in particular the flange 616 of the adapter, can rest on the flange 208.

As shown in Fig. 6C and 7B, each of the pair of support cavities 221 comprises a fourth arcuate support surface 225 opposite to the third arcuate support surface 224. In particular, with respect to the shaving plane SP (or the skin-contacting side 110), the third arcuate support surface 224 has a convex shape, and the fourth arcuate support surface 225 has a concave shape. Each support cavity 221 comprises a lower wall 222 extending from a position near the front edge 130 to the geometric center of the shaving head 10 at an angle δ measured between the lower wall 222 and the shaving plane SP. The lower wall 222 extends in the perpendicular direction y to the geometric center of the shaving head 10. Each support cavity 221 comprises a side wall 223 extending from the lower wall 222 at a position near the geometric center of the shaving head 10 in the shaving direction x in a substantially vertical direction z. The side wall 223 extends in the perpendicular direction y to the geometric center of the shaving head 10. As shown in Fig. 6C and 7B, the fourth arcuate supporting surface 225 is located between the bottom wall 222 and the side wall 223. In other words, it can be determined that the connecting section 200 includes the bottom wall 222, the fourth arcuate supporting surface 225 and the side wall 223, as described above, on the rear side 120. Since the two projections 202a, 202b are located adjacent to the pair of supporting cavities 221 on each side between the supporting cavity 221 and the side portion 150, the bottom wall 222, the fourth arcuate supporting surface 225 and the side wall 223 can extend on the rear side 120 between the two projections 202a, 202b in the perpendicular direction y. Each support cavity 221 can be defined by a first wall 203, in particular a third arcuate support surface 224, a fourth arcuate support surface 225, a bottom wall 222 and a side wall 223.

As best shown in Fig. 4A, 5 and 7A, the connecting section 200 comprises a cam section 201. The cam section 201 comprises a cam wall 207 extending from the rear side 120 in the vertical direction z, wherein the cam wall 207 comprises a cam surface 206 that extends parallel to the perpendicular direction y. The cam surface 206 is oriented substantially in the vertical direction z. The cam wall 207 extends from the front edge 130 in the shaving direction x (or, in other words, parallel to the side portions 150 and/or parallel to the projections 202a, 202b). With respect to the perpendicular direction y, the cam wall 207 is located symmetrically between the two projections 202a, 202b and/or the side portions 150. In the embodiment shown in Fig. 5, starting from the front edge 130 in the shaving direction x and when viewed in the x-z plane, the cam wall 207 may comprise a first portion that extends linearly in the shaving direction x, followed by a recess that extends in the vertical direction z toward the skin-contacting side 110, and followed by a second portion that extends linearly and at least partially toward the rear edge 140. The first and second portions may be slightly inclined toward the recess with respect to the shaving plane SP.

As shown in Fig. 7B, the first support mechanism 210 comprises a first range of rotation γ, measured relative to the support axis BA. The second support mechanism 220 has a second range of rotation β, measured relative to the support axis BA. However, the true range of rotation, in particular the range of the angle of rotation µ, is obtained after the shaving head 10 is connected to the handle 30 of the razor and, thus, depends on the design characteristics of the support components, for example the connecting adapter 20a, 20b, with which the shaving head 10 can be connected.

In embodiments as shown in Fig. 5, the rear longitudinal member may comprise a longitudinal skin care member 141 (e.g. a lubricating strip) for applying a composition, such as a lubricating composition, to the shaving plane SP after the plurality of cutting elements 170a-d have passed over the user's skin. The front longitudinal member may comprise a protective element 190, which may be located near the shaving plane SP. The protective element 190 may comprise an elastomeric element (not shown in Fig. 5). The elastomeric layer may comprise one or more ribs extending in the longitudinal direction parallel to the protective element 190 and substantially perpendicular to the shaving direction x. One of the purposes of such an elastomeric layer is, for example, to stretch the skin before cutting the hair.

In embodiments, the rear longitudinal member may further comprise a trimming unit 400, in particular a longitudinal trimming unit 400 provided on the rear edge 140. It will be understood by a person skilled in the art that the typical trimming unit 400 may be omitted without loss of general applicability. The trimming unit 400 may comprise a longitudinal trimming cutting element 410 located on the rear edge 140 of the shaving head 10. The longitudinal trimming cutting element 410 may be used, for example, to trim hairs that are difficult to reach with the plurality of cutting elements 170a-d, such as excess nasal hair, or to enable improvement of the beard contours when shaving. The trimming unit 400 may further comprise a support groove 420 for a trimming cutting element configured to receive the trimming cutting element 410. As shown in Fig. 5, the trimming cutting element 410 is arranged in the support groove 420 for the trimming cutting element. In one embodiment, the trimming cutting element 410 can extend only a part of the longitudinal direction of the trimming unit 400, for example up to three quarters, up to one half or up to one quarter. The trimming cutting element 410 can have a structure identical to the cutting elements 170a-d, in order to reduce variations in parts. Alternatively, the trimming cutting element 400 can have a structure different from the structure of the cutting elements 170a-d. The trimming cutting element 410 is not included in the plurality of cutting elements 170a-d intended to contact the shaving plane SP. In particular, the trimming cutting element 410 can be oriented with its cutting edge toward the rear side 120 of the shaving head in the vertical direction z. In embodiments, the trimming assembly 400 may comprise a removable cover 430 as a safety feature and to maintain the sharpness of the trimming cutting element 410 when not in use.

As shown in Fig. 7A and 7B, the first support mechanism 210 and the second support mechanism 220 may comprise at least one support axis BA, which extends parallel to the perpendicular direction y. In particular, the at least one support axis BA may be a virtual support axis about which the shaving head 10 rotates when connected to the handle 30 of the razor, in particular to the connecting adapter 20a, 20b. In embodiments, the first support mechanism 210 and the second support mechanism 220 may comprise one common support axis BA, wherein the support axis BA may be located between the front edge 130 and the first cutting element 170d, when viewed from the front edge 130 to the rear edge 140 in the shaving direction x. The support axis BA may be located near the skin-contacting side (and/or the shaving plane SP). In other words, the support axis BA can be located in the region of the protective rod 190, which is located between the first cutting element 170d and the front edge 130 near the skin-contacting side 110. In another embodiment, the first support mechanism 210 can have a first support axis, and the second support mechanism 220 can have a second support axis. The first support axis can be different from the second support axis. In case the shaving head is connected to the handle 30 of the razor, in particular to the connecting adapter 20a, 20b, by means of the first support mechanism 210, the shaving head 10 can rotate about the first support axis. In case the shaving head 10 is connected to the handle 30 of the razor, in particular to the connecting adapter 20a, 20b, by means of the second support mechanism 220, the shaving head 10 can rotate about the second support axis. It should be understood that the location of the respective support axes depends on the design dimensions and/or the arrangement of the connecting section, the support component to which the connection is to be made, and/or the first and second support mechanisms 210, 220. The first support axis can be located in the shaving direction x between the second and third cutting elements 170b, 170c, in particular near the skin-contacting side 110. The second support axis can be located between the front edge 130 and the first cutting element 170d, when viewed from the front edge 130 to the rear edge 140 in the shaving direction x. The second support axis can be located near the skin-contacting side 110 (and/or the shaving plane SP). Due to the location of the common support axis BA, the first support axis or the second support axis, the shaving efficiency can be improved.

As shown, for example, in Fig. 1D, the shaving head 10 may further comprise a protective cover 300 configured to be detachably connected to the shaving head 10. The shaving head 10 may be inserted into the cavity of the protective cover 300. The protective cover 300 may cover the cutting elements 170a-d, which may lead to increased safety for the user when connecting the shaving head 10 to the connecting adapter 20 and/or the handle 30 of the razor.

As shown, for example, in Fig. 1A-1D, the shaving head 10 further comprises a connecting adapter 20a, 20b, wherein the connecting section 200 is removably connected to the connecting adapter 20a, 20b by means of a rotary connection, in particular by means of the first and/or second support mechanisms 210, 220. In other embodiments (not shown), the shaving head 10 can be connected to the connecting adapter 20a, 20b by means of a non-rotatable connection. The connecting adapter 20a, 20b is configured to rotate about the support axis BA relative to the connecting section 200. However, it can alternatively be determined that the shaving head 10 is configured to rotate about the support axis BA relative to the connecting adapter 20a, 20b. In embodiments, the connecting adapter 20b can be disconnected from the first support mechanism 210 by means of a bending and/or rotation operation. In one example, the connecting adapter 20b can rotate toward the geometric center in such a way that the connecting adapter 20b can be released by the second walls 204. The same can be used to separate the connecting adapter 20a from the second support mechanism 220. In another embodiment, the connecting adapter 20a can be disconnected from the second support mechanism 220 by rotating the connecting adapter 20a to the maximum possible extent and by applying a release force that pulls back the retaining force. However, other embodiments of disconnecting the connecting adapter 20a, 20b from the first and/or second support mechanisms 210, 220 can include mechanisms with positive and/or non-positive fixation, such as hinge mechanisms or bending mechanisms.

Fig. 9A-12D are schematic views of the coupling adapter 20a, 20b according to the first and second embodiments. The coupling adapter 20a, as shown in Fig. 9A-10D (the first embodiment), can be connected to the shaving head 10 via the second support mechanism 220, and the coupling adapter 20b, as shown in Fig. 11A-12D (the second embodiment), can be connected to the shaving head via the first support mechanism 210. As noted above, due to the functionally different first and second support mechanisms 210, 220 located in one shaving head 10, the shaving head 10 can be connected to different handles 30 of the razor and/or coupling adapters 20a, 20b.

As shown in Fig. 2, 10B–10D and 12B–12D, the connecting adapter 20a, 20b is configured to rotate between a first position 101, related to the initial position, and at least one second position 102, related to the rotational position. Starting from the first position 101, the connecting adapter 20a, 20b can be configured to rotate in a range of rotation angles of 0°<μ≤50°, wherein, in particular, the connecting adapter 20 can be configured to rotate in one direction, for example from a position near the front edge 130 to the rear edge 140. In another embodiment, starting from the first position 101, the connecting adapter 20a, 20b can be configured to rotate in a range of rotation angles of -25°≤μ≤+25°, wherein, in particular, the connecting adapter 20a, 20b can be configured to rotate in two directions, for example in the direction towards the front edge 130 and/or towards the rear edge 140. Although at least one second position 102 can be described above as the end position, it should be noted that during the shaving operation it may also be possible to rotate the connecting adapter adapter 20a, 20b to intermediate positions.

As shown in Fig. 9A-9D and 11A-11D, the connecting adapter 20a, 20b comprises a section 500, 600 of the housing having a first connecting section 510, 610 located at a first end of the connecting housing 500, 600, wherein, in particular, the connecting section 510, 610 is first configured to be connected to the connecting section 200, in particular to the first support mechanism 210 and/or the second support mechanism 220. The connecting adapter 20a, 20b has a longitudinal axis x1 and a perpendicular axis y1, which is perpendicular to the longitudinal axis x1, wherein both axes pass through the geometric center of the connecting adapter 20a, 20b.

In embodiments, the housing portion 500, 600 may have a second connecting portion 520, 620 provided at the end of the housing portion 500, 600 opposite the first connecting portion 510, 610, wherein the second connecting portion 520, 620 may be configured to connect to the razor handle 30. However, the second connecting portion 520, 620 may be provided only in the case when the connecting adapter 20a, 20b is a separate component with respect to the razor handle 30. In other embodiments, the connecting adapter 20a, 20b may be formed integrally with the razor handle 30, so that the second connecting portion 520, 620 may be absent. The second connecting portion 520, 620 may further comprise an opening 521, 621 configured to receive the first end 31 of the razor handle 30. The connecting adapter 20a, 20b may be connected to the razor handle 30 and/or the razor head 10 by means of a forced or non-forced fixation. In embodiments, the opening 521, 621 may comprise at least one lock 522, 622 provided on a wall 523, 623 of the opening 521, 621. In one embodiment, the opening 521, 621 may pass through the housing portion 500, 600 in the direction of the longitudinal axis x1. The locks 522, 622 may be configured to be received in recesses provided on the first end 31 of the razor handle 30 and having a complementary shape. In other embodiments, the recesses and locks 522, 622 may be reversed.

As shown in Fig. 1B, the handle 30 of the razor may comprise a retention and/or release mechanism 700 configured to connect the shaving head 10 to the handle 30 of the razor and/or to separate the shaving head 10 from the handle 30 of the razor. In particular, in the case where the connecting adapter 20a, 20b is provided as a separate component with respect to the handle 30 of the razor, the retention and/or release mechanism 700 may be configured to detach the connecting adapter 20a, 20b and/or the shaving head 10 from the handle 30 of the razor. The retention and/or release mechanism 700 may include a switch (or button) that can be switched by the user from the first switch position to the second switch position, thereby separating the shaving head 10 and/or the connecting adapter 20 from the handle 30 of the razor. The retention and/or release mechanism 700 may comprise at least one movable element provided on the first end 31 of the handle 30 of the razor. When the user actuates the button, the movable elements can protrude substantially along the longitudinal axis of the handle 30 of the razor, thereby applying a force to the rear side of the shaving head 10 or the inner wall of the connecting adapter 20a, 20b to detach the shaving head 10 and/or the connecting adapter 20a, 20b from the handle 30 of the razor.

As shown in Fig. 1C and 2A, the connecting adapter 20a, 20b may comprise a biasing element 21 configured to bias the connecting adapter 20a, 20b relative to the connecting section 200 around the support axis BA. The biasing element 21 may engage with the cam surface 206. In embodiments in which the connecting adapter 20a, 20b is a separate component and can be removably connected to the handle 30 of the razor, the biasing element 21 may also be provided in the handle 30 of the razor. In this case, and when connected to the handle 30 of the razor, the biasing element 21 may protrude through the opening 521, 621 provided in the connecting adapter 20a, 20b in the longitudinal direction x1, so that the biasing element can engage with the cam surface 206.

The biasing element 21 may be a spring-loaded biasing pusher, configured to move in the direction of the longitudinal axis x1 of the connecting adapter 20a, 20b, in particular the biasing element 21 may comprise a cam follower configured to engage with the cam surface 206. In other words, the cam follower may be configured to contact the cam surface 206 and/or slide along it. The biasing element 21 may be configured to press the shaving head 10 into the first position 101, in particular when the shaving head 10 is connected to the connecting adapter 20a, 20b. As mentioned above, the first position 101 refers to the initial position of the shaving head 10. In more detail, the biasing member 21 can press the cam surface 206 and return the shaving head 10 to the initial position. When the connecting adapter 20a, 20b does not rotate relative to the connecting section 200, for example when the razor 1 is not used (and the shaving head 10 does not contact the surface of the user's skin) or contacts the skin in the first position 101, the biasing member 21 can press the shaving head 10 into the first position 101. In this case, the pusher can move in the direction of the longitudinal axis x1 to the maximum possible extent. When the shaving head 10 rotates during shaving, the biasing member 21 can be pushed into the connecting adapter 20 (and/or the handle 30 of the razor).

The connecting adapter 20a according to the first embodiment is shown in Fig. 9A-10D. The first connecting portion 510 comprises a pair of support pins 511a, 511b adapted to be inserted into the pair of support cavities 221. Each support pin of the pair of support pins 511a, 511b extends outwardly parallel to the perpendicular axis y1 and parallel to the longitudinal axis x1 from the section 500 of the body. In the embodiment shown in Fig. 9B, each of the support pins 511a, 511b may have a V-shape when viewed in the plane x1-z1 defined by the longitudinal axis x1 and the vertical axis z1, which is perpendicular to the longitudinal axis x1 and perpendicular to the axis y1. Each of the support pins 511a, 511b comprises a lower side 512 and an upper side 513, wherein the V-shape of each of the support pins 511a, 511b may include an angle λ. The angle of rotation µ, as described above, can be measured between the lower side 512 and the lower wall 222 or between the upper side 513 and the side wall 223. In the first position 101, the lower side 512 can be parallel to the lower wall 222 and/or can rest on the lower wall 222. Additionally or alternatively, in at least one second position 102, the lower side 512 can be located at an angle µ measured between the lower wall 222 and the lower side 512. In other words, the lower side 512 and the lower wall 222 together can form a first limiter, and the upper side 513 and the side wall 223 can form a second limiter.

Each of the support pins 511a, 511b comprises a first arcuate surface 514a of the support pin and a second arcuate surface 514b of the support pin, opposite to the first arcuate surface 514a of the support pin. With respect to the connecting body 500 (in particular, when viewed from the geometric center of the connecting body 500), the first arcuate surface 514a of the support pin may have a convex shape, and the second arcuate surface 514b of the support pin may have a concave shape. When the pair of support pins 511a, 511b are inserted into the pair of support cavities 221, the first arcuate surface 514a of the support pin may contact and/or rest on the fourth arcuate surface 225 of the support pin, and the second arcuate surface 514b of the support pin may contact and/or rest on the third arcuate surface 224 of the support pin.

The connecting adapter 20b according to the second embodiment is shown in Fig. 11A-12D. In this embodiment, the first connecting portion 610 comprises a pair of arcuate supports 614a, 614b configured to be inserted into the pair of arcuate support sections 211. Each arcuate support of the pair of arcuate supports 614a, 614b extends outwardly parallel to the perpendicular axis y1 from the section 600 of the housing. The arcuate shape of the pair of arcuate supports 614a, 614b can extend from the section 600 of the housing. In other words, the pair of arcuate supports 614a, 614b can have a concave shape with respect to the geometric center of the section 600 of the housing. Each arcuate support of the pair of arcuate supports 614a, 614b has a lower side 612, an upper side 613, a first lateral edge 615a and a second lateral edge 615b. In relation to the connecting body 600 (in particular, to the geometric center of the connecting body 600), the lower side 612 and/or the upper side (613) can have a concave shape. When the pair of arcuate supports 614a, 614b are inserted into the pair of arcuate support sections 211, the lower side 612 can contact the first arcuate support surface 212 and/or rest on it, and the upper side 613 can contact the second arcuate support surface 613 and/or rest on it. The lower side 612 may have an arcuate shape and a radius of about 4.0 to 7.0 mm, in particular about 5.0 to 6.0 mm, in particular about 5.2 to 5.8 mm. The upper side 613 may have an arcuate shape and a radius of about 5.0 to 8.0 mm, in particular about 6.0 to 7.0 mm, in particular about 6.2 to 6.9 mm.

In embodiments, the connecting adapter 20b may comprise an adapter flange 616 configured to rest on the flange 208 of the connecting section 200, in particular in the first position 101, when the shaving head 10 can only be turned in one direction. In at least one second position (102), the second side edge 615b may contact the stop wall 214 and/or rest on it. In embodiments, the first position 101 may be located between at least one second position 102, including the first end position and the second end position. In this case, the connecting adapter 20b can be turned in both directions, in particular towards the front edge 130 and/or the rear edge 140 up to a rotation angle of 25°. In the first final position near the front edge 130, the connecting adapter 20b, in particular the flange 616 of the adapter, can contact the flange 208 and/or rest on it. In the second final position near the rear edge 140, the second side edge 615b can contact the stop wall 214 and/or rest on it. The range of the rotation angle µ can be measured between the stop wall 214 and the second side edge 615b. In embodiments, the range of the rotation angle µ can also be measured between the bottom wall 222 and the first side edge 615a.

The following examples describe examples of how the range μ of rotation angles can be determined relative to the first and second support mechanisms 210, 220.

As shown in Fig. 7B and in the example, the first support mechanism 210 has a first range of rotation γ, measured relative to the support axis BA. The first range of rotation γ can be measured between the shoulder 208 and the stop wall 214. In this case, the first arcuate support surface 212 can extend along a circle that is equal to the first range of rotation γ or greater than it. The first range of rotation γ depends on the specific location of the shoulder 208 and the stop wall 214, in particular relative to each other. In the case that the connecting adapter 20b is connected to the shaving head 10 by means of the first support mechanism 210, as shown in Fig. 12C and 12D, the range μ of rotation angles of the shaving head 10 relative to the connecting adapter 20b may be the result of the difference between the angle δ1 related to the circumference, measured between the flange 616 of the adapter and the second side edge 615b (see, for example, Fig. 11B) and relative to the support axis BA, and the first range γ of rotation. For example, the first range γ of rotation may be calculated so that it is 80°, and the angle δ1 may be calculated so that it is 30°. The resulting range μ of rotation angles may then be 50°. However, it should be understood that other design solutions for the corresponding components and angles are also possible.

In another example, the flange 208 and/or the flange 616 may be absent. In this embodiment, the connecting adapter 20b may contact and/or rest on a portion of the rear side 120 located near the front edge 130, wherein its first lateral edge 615a is in a first position 101 or in at least one second position 102, in particular in a first end position (see, for example, Fig. 12C). Furthermore, the connecting adapter 20b may contact and/or rest on the stop wall 214, wherein its second lateral edge 615b is in at least one second position 102, in particular in a second position (see, for example, Fig. 12D). In this case, the first support mechanism 210 can have a third range of rotation γ+α, measured between the lower wall 222 and the stop wall 214 relative to the support axis BA. In this case, the first wall 203 and/or the first arcuate support surface 212 can extend along a circumference that is equal to the third range of rotation γ+α. When the connecting adapter 20b is connected to the shaving head 10 by means of the first support mechanism 210, as shown in Fig. 12C and 12D, the range μ of rotation angles of the shaving head 10 relative to the connecting adapter 20b may be the result of the difference between the angle δ2 related to the circle along which the pair of arcuate supports 614a, 614b extends, measured between the first and second side edges 615a, 615b relative to the support axis BA (see, for example, Fig. 11B), and the third range γ+α of rotation. For example, the third range γ+α of rotation may be calculated so that it is 130°, and the angle δ2 may be calculated so that it is 80°. The resulting range µ of rotation angles may then be 50°. However, it should be understood that other design solutions for the corresponding components and angles are also possible.

As shown in Fig. 7B, the second support mechanism 220 has a second range β of rotation measured relative to the support axis BA. The second range β of rotation can be measured between the bottom wall 222 and the side wall 223. In this case, the third arcuate support surface 224 can extend along a circumference that is equal to or greater than the second range β of rotation. The second range β of rotation depends on the specific location of the bottom wall 222 and the side wall 223, in particular relative to each other. In the case that the connecting adapter 20a is connected to the shaving head 10 by means of the second support mechanism 220, as shown in Fig. 10C and 10D, the range μ of rotation angles of the shaving head 10 relative to the connecting adapter 20a may be the result of the difference between the angles λ (see, for example, Fig. 9B, the angle of the V-shape of the support pins 511a, 511b) and the second range β of rotation. For example, the second range β of rotation may be calculated so that it is 75°, and the angle λ may be calculated so that it is 25°. The resulting range µ of rotation angles may then be 50°. However, it should be understood that other design solutions for the corresponding components and angles are also possible.

According to another aspect of the present description, a set of parts is proposed (not shown in the figures). The set of parts comprises a razor cartridge holder comprising a plurality of razor heads 10 according to any of the embodiments described above. In one embodiment, the set of parts may further comprise a razor handle 30. In particular, the set of parts may comprise a razor head 10 and at least one connecting adapter 20a, 20b according to the first and/or second embodiment, as described above. However, it should be noted that the connecting adapter 20a, 20b may be a separate component with respect to the razor handle 30 or may be formed integrally with the razor handle 30.

According to a fourth aspect of the present description, a method for assembling a razor 1 is proposed. The method includes the steps of providing a razor handle 30, providing a shaving head 10 in accordance with any of the embodiments described above, and connecting the razor handle 30 to the shaving head 10. In embodiments, the connecting adapter 20a, 20b can be formed integrally with the razor handle 30. Connecting the razor handle 30 to the shaving head 10 can include connecting the razor handle 30 to the connecting section 200, in particular to the first support mechanism 210 or the second support mechanism 220, by means of the connecting adapter 20a, 20b.

In other embodiments, the connecting adapter 20a, 20b may be a separate component. Connecting the razor handle 30 to the razor head 20 may include connecting the connecting adapter 20a, 20b to the connecting section 200, in particular to the first support mechanism 210 or the second support mechanism 220, and connecting the connecting adapter 20a, 20b to the razor handle 30. The razor 1 and/or the razor head 10 may be made according to any of the embodiments described above.

Although the present invention has been described above and defined in the appended claims, it should be understood that the present invention may alternatively be defined according to the following embodiments.

1. A shaving head (10) comprising:

a frame (100) having a skin-contacting side (110) and a rear side (120) opposite the skin-contacting side (110), wherein a connecting section (200) is located on the rear side (120), wherein the connecting section (200) is configured to connect the shaving head (10) to the handle (30) of the razor,

characterized in that the connecting section (200) comprises a first support mechanism (210) and a second support mechanism (220), which are functionally different from each other.

2. The shaving head (10) according to embodiment 1, in which at least one of the first and second support mechanisms (210, 220) is a rotary mechanism, and in particular each of the first and second support mechanisms (210, 220) is a rotary mechanism.

3. The shaving head (10) according to embodiment 1 or embodiment 2, wherein the shaving head (10) has a shaving direction (x), a perpendicular direction (y) which is perpendicular to the shaving direction (x), and a vertical direction (z) which is perpendicular to the shaving direction (x) and the perpendicular direction (y).

4. A shaving head (10) according to any of the preceding embodiments, wherein the frame (100) further comprises a front longitudinal element defining a front edge (130) and a rear longitudinal element defining a rear edge (140), wherein, in particular, the shaving plane (SP) is defined on the skin-contacting side of the frame (100).

5. A shaving head (10) according to any of the preceding embodiments, wherein the first support mechanism (210) comprises a pair of arcuate support sections (211).

6. A shaving head (10) according to any of the preceding embodiments, wherein the second support mechanism (220) comprises a pair of support cavities (221).

7. The shaving head (10) according to embodiments 5 and 6, in which the pair of arcuate support sections (211) and/or the pair of support cavities (221) extend parallel to the perpendicular direction (y), wherein, in particular, the pair of arcuate support sections (211) and/or the pair of support cavities (221) are oriented in the direction towards the geometric center of the shaving head (10) in the perpendicular direction (y), respectively.

8. A shaving head (10) according to any of the preceding embodiments, wherein the connecting section (200) comprises a pair of first walls (203) which have an arcuate shape, wherein, in particular, the first walls (203) of this pair are separated from each other and/or aligned with each other with respect to the perpendicular direction (y).

9. The shaving head (10) according to embodiment 8, depending on embodiment 3, in which the pair of first walls (203) extend from a position near the side section (150) of the frame (100) in a perpendicular direction (y) to the geometric center of the shaving head (10), respectively.

10. The shaving head (10) according to embodiment 8 or embodiment 9, in which the pair of first walls (203) extend circumferentially relative to a support axis (BA) that extends parallel to the perpendicular direction (y).

11. A shaving head (10) according to any one of embodiments 8-10, wherein a pair of support cavities (221) are formed between the rear side (120) and the pair of first walls (203), respectively.

12. A shaving head (10) according to any of embodiments 8-11, wherein the pair of first walls (203) comprises a first arcuate support surface (212) which is oriented substantially in the vertical direction (z), respectively.

13. The shaving head (10) according to embodiment 12, in which the first arcuate support surface (212) has a radius of from about 4.0 to 7.0 mm, in particular from about 5.0 to 6.0 mm, in particular from about 5.2 to 5.8 mm.

14. The shaving head (10) according to embodiment 8-13, in which each of the pair of first walls (203) comprises a stop wall (214) which extends from the first arcuate support surface (212) in a position near the geometric center of the shaving head (10) to the rear edge (140) and the rear side (120), in particular at a certain angle relative to the shaving plane (SP).

15. A shaving head (10) according to any of embodiments 8-14, in which each of the pair of first walls (203) comprises a third arcuate support surface (224) which is oriented in the direction of the pair of support cavities (221).

16. The shaving head (10) according to embodiment 15, in which the third arcuate support surface (224) has a radius of from about 2.0 to 4.0 mm, in particular from about 2.5 to 3.5 mm.

17. A shaving head (10) according to any of the preceding embodiments, wherein the connecting section (200) comprises at least one projection (202) extending from the rear side (120) in the vertical direction (z).

18. A shaving head (10) according to any of the preceding embodiments, wherein the connecting section (200) comprises two projections (202a, 202b) extending from the rear side (120) in the vertical direction (z), wherein the two projections (202a, 202b) are separated and/or aligned with respect to each other with respect to the perpendicular direction (y).

19. The shaving head (10) according to embodiment 18, in which the first support mechanism (210) and the second support mechanism (220) are formed between two projections (202a, 202b) in a perpendicular direction (y).

20. The shaving head (10) according to embodiment 18 or embodiment 19 depending on embodiment 8, in which the pair of first walls (203) are located adjacent to and between two projections (202a, 202b), respectively.

21. A shaving head (10) according to any of embodiments 14-17, in which in the vertical direction (z) and from the rear side (120), the connecting section (200) comprises a second support mechanism (220), followed by a first support mechanism (210).

22. The shaving head (10) according to any one of embodiments 18-21, in which each of the projections (202a, 202b) comprises a second wall (204) extending proximally to the end (205) of the corresponding projection (202a, 202b) in a perpendicular direction (y) to the geometric center of the shaving head (10), wherein the second wall (204) defines a second arcuate support surface (213).

23. The shaving head (10) according to embodiment 22, in which the second arcuate support surface (213) has a radius of from about 5.0 to 8.0 mm, in particular from about 6.0 to 7.0 mm, in particular from about 6.2 to 6.9 mm.

24. The shaving head (10) according to embodiments 22 and 23, in which the first arcuate support surface (212) extends along a circumference that is larger than the circumference along which the second arcuate support surface (213) extends.

25. A shaving head (10) according to any of embodiments 22-24, in which, starting from the position on the rear side (120) in the vertical direction (z), the connecting section (200) comprises a pair of support cavities (221), followed by a pair of first walls (203), followed by a pair of arcuate support sections (211), followed by a pair of second walls (204).

26. A shaving head (10) according to any of embodiments 22-25, in which the second arcuate support surface (213) extends parallel to the first arcuate support surface (212) and/or the third arcuate support surface (224).

27. A shaving head (10) according to any of embodiments 22-26, wherein a pair of arcuate support sections (211) is formed between a pair of first walls (203) and a pair of second walls (204), in particular between a first arcuate support surface (212) and a second arcuate support surface (213).

28. A shaving head (10) according to any one of embodiments 22-27, wherein each of the pair of first walls (203) has a first length (l1), and wherein each of the pair of second walls (204) has a second length (l2), measured parallel to the perpendicular direction (y), wherein the first length (l1) is greater than the second length (l2).

29. The shaving head (10) according to embodiment 28, in which each of the pair of first walls (203) comprises a first wall section (203a) having a first length (l1) and a second wall section (203b) having a third length (l3), wherein, in particular, the first length (l1) is greater than the third length (l3).

30. A shaving head (10) according to any of embodiments 22-29, in which, in relation to the shaving plane (SP), the first arcuate support surface (212) and/or the second arcuate support surface (213) have a convex shape.

31. A shaving head (10) according to any of embodiments 15-30, in which each of the pair of support cavities (221) comprises a fourth arcuate support surface (225) opposite the third arcuate support surface (224), wherein, in particular, with respect to the shaving plane (SP), the third arcuate support surface (224) has a convex shape, and wherein the fourth arcuate support surface (225) has a concave shape.

32. The shaving head (10) according to any one of embodiments 6-31, wherein each support cavity (221) comprises a lower wall (222) extending from a position near the front edge (130) to the geometric center of the shaving head (10) at an angle (δ) measured between the lower wall (222) and the shaving plane (SP), and wherein the lower wall (222) extends in a perpendicular direction (y) to the geometric center of the shaving head (10).

33. The shaving head (10) according to embodiment 32, in which each support cavity (221) comprises a side wall (223) extending from the bottom wall (222) in a position near the geometric center of the shaving head (10) in a substantially vertical direction (z), and wherein the side wall (223) extends in a perpendicular direction (y) to the geometric center of the shaving head (10).

34. The shaving head (10) according to embodiment 33, in which each support cavity (221) is defined by a first wall (203), in particular a third arcuate support surface (224), a fourth arcuate support surface (225), a bottom wall (222) and a side wall (223).

35. A shaving head (10) according to any of the preceding embodiments, wherein the connecting section (200) comprises a cam section (201).

36. The shaving head (10) according to embodiment 35, in which the cam section (201) comprises a cam wall (207) extending from the rear side (120) in the vertical direction (z), wherein the cam wall (207) comprises a cam surface (206) which extends parallel to the perpendicular direction (y).

37. A shaving head (10) according to any one of embodiments 4-36, in which the rear longitudinal element comprises a trimming unit (400) provided at the rear edge (140).

38. A shaving head (10) according to any of the preceding embodiments, further comprising a protective cover (300) configured to be detachably attached to the shaving head (10).

39. A shaving head (10) according to any of the preceding embodiments, further comprising a connecting adapter (20a, 20b), wherein the connecting section (200) is removably connected to the connecting adapter (20a, 20b) by means of a rotary or non-rotary connection, in particular by means of the first and/or second support mechanisms (210, 220).

40. The shaving head (10) according to embodiment 39, in which the connecting adapter (20a, 20b) is designed to rotate around the support axis (BA) relative to the connecting section (200).

41. The shaving head (10) according to embodiment 39 or embodiment 40, in which the connecting adapter (20a, 20b) is designed to rotate between a first position (101) related to the initial position and at least one second position (102) related to the rotary position.

42. The shaving head (10) according to embodiment 41, in which, starting from the first position (101), the connecting adapter (20a, 20b) is designed with the possibility of rotation in the range of rotation angles from 0°<μ≤50°, wherein, in particular, the connecting adapter (20) is designed with the possibility of rotation in one direction.

43. The shaving head (10) according to embodiment 41, in which, starting from the first position (101), the connecting adapter (20a, 20b) is configured to rotate in a range of rotation angles from -25°≤μ≤25°, wherein, in particular, the connecting adapter (20a, 20b) is configured to rotate in two directions.

44. A shaving head (10) according to any of embodiments 39-43, in which the connecting adapter (20a, 20b) comprises a biasing element (21) configured to bias the connecting adapter (20a, 20b) relative to the connecting section (200) around the support axis (BA).

45. The shaving head (10) according to embodiment 44, in which the biasing element (21) is a spring-loaded biasing pusher, configured to move in the direction of the longitudinal axis (x1) of the connecting adapter (20a, 20b), wherein, in particular, the biasing element (21) comprises a cam follower configured to engage with the cam surface (206).

46. The shaving head (10) according to embodiment 44 or embodiment 45, in which the biasing element (21) is configured to press the shaving head (10) into the first position (101).

47. A shaving head (10) according to any of embodiments 39-46, wherein the connecting adapter (20a, 20b) comprises a section (500, 600) of the housing having a first connecting section (510, 610) located at a first end of the connecting housing (500, 600), wherein, in particular, the first connecting section (510, 610) is configured to be connected to the connecting section (200), in particular to the first support mechanism (210) and/or the second support mechanism (220).

48. The razor head (10) according to embodiment 47, in which the section (500, 600) of the housing has a second connecting section (520, 620) provided at the end of the section (500, 600) of the housing opposite the first connecting section (510, 610), wherein the second connecting section (520, 620) is designed with the possibility of connecting to the handle (30) of the razor.

49. The razor head (10) according to embodiment 48, in which the second connecting section (520, 620) comprises an opening (521, 621) configured to receive the first end (31) of the handle (30) of the razor.

50. The shaving head (10) according to embodiment 49, in which the opening (521, 621) comprises at least one lock (522, 622) provided on the wall (523, 623) of the opening (521, 621).

51. A shaving head (10) according to any one of embodiments 39-50, in which the connecting adapter (20a, 20b) has a longitudinal axis (x1) and a perpendicular axis (y1) which is perpendicular to the longitudinal axis (x1), both axes passing through the geometric center of the connecting adapter (20a, 20b).

52. A shaving head (10) according to any of embodiments 47-51, wherein the first connecting portion (510) comprises a pair of support pins (511a, 511b) configured to be inserted into a pair of support cavities (221).

53. The shaving head (10) according to embodiment 52, in which each support pin of the pair of support pins (511a, 511b) extends outwardly parallel to the perpendicular axis (y1) and parallel to the longitudinal axis (x1) from the section (500) of the housing.

54. The shaving head (10) according to embodiment 52 or embodiment 53, in which each of the support pins (511a, 511b) has a V-shape when viewed in a plane (x1-z1) defined by a longitudinal axis (x1) and a vertical axis (z1) which is perpendicular to the longitudinal axis (x1) and the perpendicular axis (y1).

55. The shaving head (10) according to embodiment 54, in which each of the support spikes (511a, 511b) comprises a lower side (512) and an upper side (513), wherein the V-shape of each of the support spikes (511a, 511b) includes an angle (λ).

56. The shaving head (10) according to embodiment 55, in which the angle (μ) of rotation is measured between the lower side (512) and the lower wall (222) and/or between the upper side (513) and the side wall (223).

57. The shaving head (10) according to embodiment 55 or embodiment 56 and embodiment 41, in which in the first position (101) the lower side (512) is parallel to the lower wall (222) and/or rests on the lower wall (222), and/or in at least one second position (102) the lower side (512) is located at an angle of rotation (μ) measured between the lower wall (222) and the lower side (512).

58. A shaving head (10) according to any of embodiments 52-57, in which each of the support spikes (511a, 511b) comprises a first arcuate surface (514a) of the support spike and a second arcuate surface (514b) of the support spike opposite the first arcuate surface (514a) of the support spike.

59. The shaving head (10) according to embodiment 58, in which, in relation to the connecting body (500), the first arcuate surface (514a) of the support pin has a convex shape, and the second arcuate surface (514b) of the support pin has a concave shape.

60. The shaving head (10) according to embodiment 58 or embodiment 59, in which, when a pair of support pins (511a, 511b) is inserted into a pair of support cavities (221), the first arcuate surface (514a) of the support pin rests on the fourth arcuate surface (225), and the second arcuate surface (514b) of the support pin rests on the third arcuate support surface (224).

61. A shaving head (10) according to any of embodiments 39-51, wherein the first connecting portion (610) comprises a pair of arcuate supports (614a, 614b) configured to be inserted into a pair of arcuate support sections (211).

62. The shaving head (10) according to embodiment 61, in which each arcuate support of the pair of arcuate supports (614a, 614b) extends outwardly parallel to the perpendicular axis (y1) from the section (600) of the housing.

63. The shaving head (10) according to embodiment 61 or embodiment 62, in which each arcuate support of the pair of arcuate supports (614a, 614b) has a lower side (612), an upper side (613), a first side edge (615a) and a second side edge (615b).

64. The shaving head (10) according to embodiment 63, in which, in relation to the connecting body (600), the lower side (612) has a concave shape and the upper side (613) has a concave shape.

65. The shaving head (10) according to embodiment 63 or embodiment 64, in which, when the arcuate supports (614a, 614b) are inserted into the pair of arcuate support sections (211), the lower side (612) rests on the first arcuate support surface (212), and the upper side (613) rests on the second arcuate support surface (613).

66. A shaving head (10) according to any of embodiments 41-65, in which the connecting adapter (20b) comprises a flange (616) of the adapter, adapted to bear on the flange (208) of the connecting section (200), in particular in the first position (101).

67. A shaving head (10) according to any one of embodiments 63-66, wherein the lower side (612) has an arcuate shape and has a radius of from about 4.0 to 7.0 mm, in particular from about 5.0 to 6.0 mm, in particular from about 5.2 to 5.8 mm.

68. A shaving head (10) according to any of embodiments 63-67, wherein the upper side (613) has an arcuate shape and has a radius of from about 5.0 to 8.0 mm, in particular from about 6.0 to 7.0 mm, in particular from about 6.2 to 6.9 mm.

69. A shaving head according to any of embodiments 41-68, wherein in at least one second position (102) the second side edge (615b) rests on the stop wall (214).

70. The shaving head (10) according to any one of embodiments 63-69, in which the angle (μ) of rotation is measured between the stop wall (214) and the second side edge (615b).

71. A shaving head (10) according to any of the preceding embodiments, wherein the frame (100) comprises a plurality of guides (160a-d) for a cutting element, defining a plurality of support grooves (161a-d) for a cutting element, wherein each support groove (161a-d) for a cutting element is configured to accommodate a longitudinal cutting element (170a-d) and a plurality of longitudinal cutting elements (170a-d), wherein each cutting element (170a-d) is located in a corresponding support groove (161a-d) for a cutting element.

72. The shaving head (10) according to embodiment 71, depending on embodiment 3, in which the frame (100) comprises at least one C-shaped retainer (180) of the cutting element, designed with the possibility of being mounted on the side section (150) of the frame (100) in the perpendicular direction (y), wherein at least one retainer (180) of the cutting element is designed with the possibility of holding a plurality of cutting elements (170) when inserted into a plurality of support grooves for the cutting elements.

73. A set of parts containing

a razor cartridge holder comprising a plurality of razor heads (10) according to any of the preceding embodiments.

74. A set of parts according to embodiment 73, additionally comprising a razor handle (30).

75. Razor (1), containing

a shaving head (10) according to any of embodiments 1-72 and

the handle (30) of the razor, wherein the shaving head (10) is connected to the handle (30) of the razor.

76. The razor (1) according to embodiment 75, in which the handle (30) of the razor is connected to the shaving head (10) by means of a connecting adapter (20a, 20b).

77. A razor (1) according to embodiment 76, in which the connecting adapter (20a, 20b) is formed as a single piece with the handle (30) of the razor.

78. The razor (1) according to embodiment 76, in which the connecting adapter (20a, 20b) is designed to be detachably connected to the handle (30) of the razor.

79. A razor (1) according to any of embodiments 75-78, wherein the handle (30) of the razor comprises a retention and/or release mechanism (700) configured to connect the razor head (10) to the handle (30) of the razor and/or separate the razor head (10) from the handle (30) of the razor.

80. A method for assembling a razor (1), comprising the following stages:

providing the handle (30) of the razor;

providing the shaving head (10) according to any of the options
implementation 1-72 and

connecting the handle (30) of the razor with the razor head (10).

81. The method according to embodiment 80, wherein the connecting adapter (20a, 20b) is formed integrally with the razor handle (30), and wherein connecting the razor handle (30) to the razor head (10) includes connecting the razor handle (30) to the connecting section (200), in particular to the first support mechanism (210) or to the second support mechanism (220), by means of the connecting adapter (20a, 20b).

82. The method according to embodiment 80, wherein the connecting adapter (20a, 20b) is a separate component, and wherein connecting the razor handle (30) to the razor head (20) includes connecting the connecting adapter (20a, 20b) to the connecting section (200), in particular to the first support mechanism (210) or to the second support mechanism (220), and connecting the connecting adapter (20a, 20b) to the razor handle (30).

ITEM NUMBERS:

x shaving direction,

y perpendicular direction,

z vertical direction,

x1 longitudinal axis,

y1 perpendicular axis,

z1 vertical axis,

SP shaving plane,

BA support axis,

α annular region of the first section of the wall,

β second rotation range,

γ first rotation range,

μ range of rotation angles,

δ angle between the bottom wall and the shaving plane,

δ1 angle between the adapter flange and the second side edge,

δ2 is the angle between the first lateral edge and the second lateral edge,

λ is a V-shaped angle,

l1 length of the first wall,

l2 is the length of the second wall,

l3 length of the second section of the wall,

L1 length of the connecting section,

L2 total blade length,

L3 total length of cutting element,

L4 length of the lower section,

L5 is the length of the upper section,

H is the height of the cutting element,

E zone of influence,

T1 blade thickness,

T2 blade holder thickness,

A angle of approach,

1 razor,

10 shaving head,

20a connector adapter,

20b connecting adapter,

21 offset elements,

30 razor handle,

31 first end,

32 second end,

101 first position,

102 second position,

100 frame,

110 skin contact side,

120 back side,

130 front edge,

140 back edge,

141 skin care items,

150 side section,

160a–d guide for cutting element,

161a–d support groove for cutting element,

170 cutting element,

171 blade holder,

172 blade,

173 upper section,

174 radius curved section,

175 lower section,

176 cutting edge,

170a–d cutting element,

180 cutting element lock,

190 protective element,

200 connecting section,

201 cam section,

202 ledge,

202a ledge,

202b ledge,

203 first wall,

203a first section of the wall,

203b second section of the wall,

204 second wall,

205 end of ledge,

206 cam surface,

207 cam wall,

208 first wall flange,

210 first support mechanism,

211 arched support section,

212 first arcuate support surface,

213 second arcuate support surface,

214 stop wall,

220 second support mechanism,

221 support cavity,

222 lower wall,

223 side wall,

224 third arcuate support surface,

300 protective cover,

400 undercutting unit,

410 undercut cutting element,

420 support groove for undercut cutting element,

500 section of the building,

510 first connecting section,

511a support tenon,

511b support tenon,

512 bottom side,

513 top side,

514a first arcuate surface of the support tenon,

514b second arcuate surface of the support tenon,

520 second connecting section,

521 holes,

522 retainer,

523 wall,

600 section of the building,

610 first connecting section,

612 bottom side,

613 top side,

614a arched support,

614b arched support,

615a first side edge,

615b second side edge,

616 adapter collar,

620 second connecting section,

621 holes,

622 retainer,

623 wall.

Claims (18)

1. A shaving head (10) comprising a frame (100) having a skin-contacting side (110) and a rear side (120) opposite the skin-contacting side (110), wherein a connecting section (200) is located on the rear side (120), wherein the connecting section (200) is configured to connect the shaving head (10) to the handle (30) of the razor, wherein the connecting section (200) comprises a first support mechanism (210) and a second support mechanism (220), which are structurally different from each other. 2. The shaving head (10) according to claim 1, wherein at least one of the first and second support mechanisms (210, 220) is a rotary mechanism, and in particular each of the first and second support mechanisms (210, 220) is a rotary mechanism. 3. A shaving head (10) according to claim 1 or 2, wherein the first support mechanism (210) comprises a pair of arcuate support sections (211), and/or wherein the second support mechanism (220) comprises a pair of support cavities (221). 4. A shaving head (10) according to any one of claims 1 to 3, wherein the shaving head (10) has a shaving direction (x), a perpendicular direction (y) which is perpendicular to the shaving direction (x), and a vertical direction (z) which is perpendicular to the shaving direction (x) and the perpendicular direction (y), wherein the connecting section (200) comprises a pair of first walls (203) which have an arcuate shape, wherein in particular the pair of first walls (203) are separated from each other and/or aligned with each other with respect to the perpendicular direction (y), wherein in particular between the rear side (120) and the pair of first walls (203) a pair of support cavities (221) is respectively formed. 5. The shaving head (10) according to claim 4, in which the pair of arcuate support sections (211) and/or the pair of support cavities (221) extend parallel to the perpendicular direction (y), wherein the pair of arcuate support sections (211) and/or the pair of support cavities (221) are oriented toward the geometric center of the shaving head (10) in the perpendicular direction (y), respectively. 6. A shaving head (10) according to claim 4 or 5, in which each of the pair of first walls (203) comprises a third arcuate support surface (224) which is oriented in the direction of the pair of support cavities (221). 7. The shaving head (10) according to claim 6, in which the pair of support cavities (221) comprises a fourth arcuate support surface (225) opposite the third arcuate support surface (224), wherein in relation to the shaving plane (SP), the third arcuate support surface (224) has a convex shape, and wherein the fourth arcuate support surface (225) has a concave shape. 8. A shaving head (10) according to any one of claims 4-7, in which the pair of first walls (203) comprises a first arcuate support surface (212) which is oriented in the vertical direction (z), respectively, and each of the pair of first walls (203) comprises a stop wall (214) which extends from the first arcuate support surface (212). 9. The shaving head (10) according to any one of claims 4 to 8, wherein the connecting section (200) comprises two projections (202a, 202b) extending from the rear side (120) in the vertical direction (z), wherein the two projections (202a, 202b) are separated and/or aligned with respect to each other with respect to the perpendicular direction (y), wherein in particular the pair of first walls (203) are located adjacent to and between the two projections (202a, 202b), respectively. 10. The shaving head (10) according to claim 9, wherein each of the projections (202a, 202b) comprises a second wall (204) extending proximally to the end (205) of the corresponding projection (202a, 202b) in a perpendicular direction (y) to the geometric center of the shaving head (10), wherein the second wall (204) defines a second arcuate support surface (213). 11. A shaving head (10) according to any one of claims 4-10, in which each of the pair of first walls (203) has a first length (l1), and wherein each of the pair of second walls (204) has a second length (l2), measured parallel to the perpendicular direction (y), wherein the first length (l1) is greater than the second length (l2). 12. The shaving head (10) according to any one of claims 4 to 11, wherein the frame (100) further comprises a front longitudinal element defining a front edge (130) and a rear longitudinal element defining a rear edge (140), wherein the shaving plane (SP) is defined on the skin-contacting side of the frame (100), wherein in particular each support cavity (221) comprises a lower wall (222) extending from a position at the front edge (130) to the geometric center of the shaving head (10) at an angle (δ) measured between the lower wall (222) and the shaving plane (SP), and wherein the lower wall (222) extends in a perpendicular direction (y) to the geometric center of the shaving head (10). 13. The shaving head (10) according to any one of claims 1 to 12, further comprising a connecting adapter (20a, 20b), wherein the connecting section (200) is removably connected to the connecting adapter (20a, 20b) by means of a rotary or non-rotary connection, in particular by means of the first and/or second support mechanisms (210, 220), wherein the connecting adapter (20a, 20b) comprises a section (500, 600) of the housing having a first connecting section (510, 610) located at a first end of the connecting housing (500, 600), wherein the first connecting section (510) comprises a pair of support pins (511a, 511b) configured to be inserted into a pair of support cavities (221). 14. Shaving kit containing: a razor cartridge holder comprising razor heads (10) according to any one of claims 1 to 13, and a razor handle (30). 15. Razor (1), containing: a shaving head (10) according to any one of paragraphs 1-13 and a razor handle (30), wherein the shaving head (10) is connected to the razor handle (30).