CN206641465U - A round open end zipper - Google Patents

Abstract

The utility model discloses a circular open-end zipper, which comprises zipper teeth, a socket, a bolt, an upper stop and a zipper belt, wherein the section of each zipper tooth body is semicircular, and the two zipper tooth bodies are engaged to form a circular zipper; the socket comprises a base and a first protruding structure, the first protruding structure is arranged above the base, a first occlusion groove is formed in the outer side of the socket, and a clamping groove is formed in the inner side of the base; the bolt comprises a clamping structure and a second protruding structure, and a second meshing groove is formed in the outer side of the bolt; the clamping structure is inserted into the clamping groove, and the first occlusion groove and the second occlusion groove are occluded on the two zipper belts respectively; the section of the upper stop is semicircular, and a third occlusion groove is arranged on the outer side of the upper stop and occluded with the zipper belt. The utility model discloses a two chain teeth meshing form circular chain, have sufficient lubrication degree at the in-process that the zip fastener opened and shut, reduce the wearing and tearing of chain tooth, because the cross section of the protruding structure of socket and bolt is for having jagged semi-circle, appear the wrong limit phenomenon when can avoiding interlock tooth interlock chain belt.

Description

A round open end zipper

technical field

The utility model belongs to the field of zippers, in particular to a circular open-end zipper.

Background technique

The zipper is a connecting piece that relies on the continuous arrangement of the chain teeth to make the items merge or separate. Now the zipper is widely used in clothing, bags, tents, etc. The zipper is generally composed of two fasteners with a row of metal teeth or plastic teeth on each tooth chain belt, which are used to connect the edge of the opening (such as clothes or pockets), and a sliding part (pull head) can pull the two rows of teeth into the interlock position to close the opening. The open-end zipper is generally provided with a locking piece at the lower end of the tooth chain belt close to the chain teeth. When the locking piece is locked, it is equivalent to a closed zipper. Pull the slider against the locking piece to separate the locking piece. It can be separated, suitable for clothing or items that often need to be pulled apart. The locking parts generally include pins and sockets, and a top stop is set on the upper end of the tooth chain belt. The top stop is to limit the slider from sliding out of the teeth when the chain teeth are pulled together Chain strap stopper.

Existing zippers are mainly flat and rectangular in cross-section. The surface of this type of zipper is usually flat, simple in structure, and simple in shape, which cannot meet the special requirements of some consumers. The smoothness of the zipper during use is a great reference standard for users to consider the zipper. The smoothness not only affects the comfort of the user when using it, but also affects the overall life of the zipper. The existing zippers are prone to insufficient smoothness of the zipper, which tends to accelerate the wear of the zipper teeth, resulting in insufficient occlusal force of the zipper teeth, incomplete closure of the zipper, and even tooth detachment, which reduces the overall service life of the zipper.

The locking parts in the existing slide fasteners are generally flat structures, and are used in conjunction with the above-mentioned zipper teeth. The sockets in the locking parts are provided with occlusal grooves and card slots, and the occlusal grooves are engaged with the tooth chain belt. The occlusal grooves in the prior art The opening of the opening is relatively weak when clamping the tooth chain belt. It is necessary to apply external force on both sides of the socket to make the occlusal groove and the tooth chain belt tightly combined. However, since the cross section of the occlusal groove is generally rectangular, it is easy to cause damage when external force is applied. The stagger phenomenon occurs at the opening of the occlusal groove. The pins in the existing locking parts are generally of one-piece structure, and the upper and lower dimensions are basically the same. When the pins are pulled out from the socket, they are easy to get stuck, which increases the wear and tear between the locking parts.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a circular open-end zipper, which improves the structure of the socket and the latch in the zipper locking part, is effectively used in conjunction with the circular chain teeth, and reduces the overall size of the zipper. loss.

In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows: a circular open-end zipper, including chain elements, sockets, bolts, top stops and tooth chain belts, the cross section of the chain element body is semicircular, and the The chain element body is provided with an engaging groove and an engaging boss, and two of the chain element bodies engage to form a circular tooth chain;

The socket includes a base and a first protruding structure, the first protruding structure is above the base, a first engaging groove is provided on the outside of the socket, and a card slot is provided on the inside of the base; the latch includes a card There is a joint structure and a second protruding structure, and a second engaging groove is provided on the outside of the latch; the engaging structure is inserted into the engaging groove, and the first engaging groove and the second engaging groove respectively engage in two on the tooth chain;

The section of the upper stop is semicircular, and the outer side of the upper stop is provided with a third engaging groove.

Preferably, the cross-sections of the first protruding structure and the second protruding structure are notched semicircular, and the first engaging groove runs through from the top of the first protruding structure to the bottom of the base.

Preferably, the first meshing groove is provided with a pair of mutually symmetrical first meshing teeth on the outside of the first protruding structure, and the second meshing groove is provided with a pair of mutually symmetrical second meshing teeth on the outside of the bolt , the first meshing teeth and the second meshing teeth are convex groove structures.

Preferably, the top of the convex groove structure is chamfered, the protruding length of the convex groove structure is 0.4-0.8 mm, and the protruding width is 0.3-0.7 mm.

Preferably, the widths of the first engaging groove and the second engaging groove gradually decrease from the opening to the inside.

Preferably, the height of the card slot is lower than that of the base, and an inclined structure is provided on the contact surface of the card slot and the base.

Preferably, the engaging structure has a width smaller than that of the second protruding structure.

Preferably, the clamping structure is arranged obliquely, and the inclination angle is 5°-10°.

Preferably, the upper end of the second protruding structure is provided with a stepped structure, the stepped surface of the stepped structure is arranged on the inner side of the second protruding structure, and the height of the stepped structure is equal to the height of the chain element , the height of the first protruding structure is equal to the height of the second protruding structure below the step surface.

Preferably, the front and rear outer surfaces of the base along the longitudinal direction are curved surface structures, and concave holes are provided on the curved surface structures.

Beneficial effects of the utility model: the circular zipper element provided by the utility model has a semicircular longitudinal section of the element body, and two element bodies engage to form a circular tooth chain. The round tooth chain can meet the user's special requirements for the zipper. Since the meshed tooth chain is round and its surface is a smooth surface, there is sufficient lubrication during the opening and closing of the zipper to reduce the wear of the chain teeth.

The socket and the latch provided by the utility model are used in conjunction with the circular chain teeth. The socket and the latch are arranged at the lower end of the tooth chain belt close to the chain teeth, and the first occlusal groove on the socket is provided with a For the mutually symmetrical first meshing teeth, the second meshing groove is provided with a pair of mutually symmetrical second meshing teeth on the outside of the bolt. Since the cross-sections of the first protruding structure and the second protruding structure are semicircular with notches, After the first occlusal teeth and the second occlusal teeth engage the fastener belt, applying an external force to the first protruding structure and the second protruding structure can prevent the first occlusal teeth and the second occlusal teeth from misalignment, and the bite is stronger.

There is an inclined structure on the contact surface between the card slot and the base, and the clamping structure is inclined. When the clamping structure is inserted into the card slot, the slope of the clamping structure can be in contact with the slope of the inclined structure, and because the clamping The dimension of the structure in the width direction is smaller than that of the second protruding structure. When the socket and the latch are separated, the friction between the two is reduced, the socket and the latch are prevented from being too tight, and the clamping structure can be pulled out from the slot more conveniently.

Because the upper end of the second protruding structure is provided with a step structure, the step surface of the step structure is arranged on the inner side of the second protruding structure, the height of the step structure is equal to the height of the fastener element, and the height of the first protruding structure is below the step surface. The height of the second protruding structure is equal, which can ensure that during the process of closing the zipper, one end of the chain element in contact with the first protruding structure is mated with the above-mentioned step structure, and the tight fit between the pin, the socket and the chain element is ensured.

Description of drawings

Fig. 1 is the front view of the circular slide fastener element of the present utility model;

Fig. 2 is the left view of socket of the present utility model;

Fig. 3 is the right side view of the utility model socket;

Fig. 4 is the front view of the utility model socket;

Fig. 5 is a top view of the utility model socket;

Fig. 6 is the front view of the latch of the present utility model;

Fig. 7 is the rear view of the latch of the present utility model;

Fig. 8 is a top view of the latch of the present utility model;

Fig. 9 is a left view of the latch of the present utility model;

Fig. 10 is the front view of the utility model top stop;

Fig. 11 is a top view of the upper end of the utility model.

detailed description

The specific embodiment of the utility model will be further described below in conjunction with accompanying drawing:

In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows: as shown in Figures 1 to 11, a circular open-end zipper includes a fastener element 1, a socket 2, a latch 3, an upper stop 4 and a tooth chain belt, As shown in Figure 1, the cross section of the chain element 1 body is semicircular, and the chain element 1 is provided with an engaging groove and an engaging boss. After the meshing groove and the engaging boss are engaged, the two elements 1 bodies mesh to form a circular tooth chain . The circular zipper element 1 provided by the utility model can meet the user's special requirements for the zipper. Since the meshed tooth chain is circular and its surface is a smooth curved surface, there is sufficient lubrication in the process of opening and closing the zipper , to reduce the wear of chain teeth 1.

It can be seen from the various angle views of the socket 2 shown in FIGS. 2 to 5 that the socket 2 includes a base 22 and a first protruding structure 21. An engaging groove 211 , and an engaging groove 221 is provided on the inner side of the base 22 . It can be seen from the various angle views of the latch 3 shown in FIGS. 211 and the second occlusal groove 33 respectively occluded at the tail end positions of the two tooth chain belts, and the upper ends of the socket 2 and the latch 3 are the chain elements 1 arranged uniformly in sequence. The width of the clamping structure 31 is smaller than that of the second protruding structure 32, and the clamping structure 21 is arranged obliquely, and the inclination angle is 5°-10°. Before closing the zipper, the socket 2 and the pin 3 are separated from each other to form an open-end zipper. When the zipper is closed, the snap-in structure 31 is inserted into the bottom of the slot 221. Head, to achieve the engagement between the elements 1.

It can be seen from FIG. 3 that the first engagement groove 211 runs through from the top of the first protruding structure 21 to the bottom of the base 22 along the vertical direction. It can be seen from FIG. 5 and FIG. 9 that the cross-sections of the first protruding structure 21 and the second protruding structure 32 are notched semicircles. The first engaging groove 211 is provided with a pair of mutually symmetrical first engaging teeth 2111 on the outside of the first protruding structure 21, and the second engaging groove 33 is provided with a pair of mutually symmetrical second engaging teeth 331 on the outer side of the latch 3. The first engaging teeth 2111 and the second meshing teeth 331 are convex groove structures. The top of the convex groove structure is chamfered, the protruding length range of the convex groove structure is 0.4-0.8 mm, the protruding width range is 0.3-0.7 mm, and the height of the convex groove structure is 0.8-1.5 mm lower than that of the socket 2 . The widths of the first engaging groove 211 and the second engaging groove 33 gradually decrease from the opening to the inside. The socket 2 and the latch 3 provided by the utility model are used in conjunction with the circular chain element 1, and the socket 2 and the latch 3 are arranged at the lower end of the tooth chain belt close to the position of the chain element 1, because the first protruding structure 21 and the second The cross-section of the protruding structure 32 is a notched semicircle. After the first occlusal teeth 2111 and the second occlusal teeth 331 engage the fastener chain, applying an external force to the first protruding structure 21 and the second protruding structure 32 can This prevents the occurrence of misalignment between the first occlusal teeth 2111 and the second occlusal teeth 331 , and the occlusion is stronger.

As shown in FIGS. 4 and 5 , the height of the slot 221 is lower than that of the base 22 , and an inclined structure 223 is provided on the contact surface between the slot 221 and the base 22 . The inclined structure 223 is in contact with the vertical surface of the inner wall of the first protruding structure 21 . When the engaging structure 31 is inserted into the slot 221, the slope of the engaging structure 31 is in contact with the inclined surface of the inclined structure 223, and since the dimension of the engaging structure 31 in the width direction is smaller than that of the second protruding structure 32, when the socket 2 is separated, When connecting with the pin 3, reduce the friction between the socket 2 and the pin 3, and avoid the phenomenon that the socket 2 and the pin 3 are too tight to cause separation difficulties.

The front and rear outer surfaces of the base 22 along the longitudinal direction are curved surface structures, and concave holes 222 are arranged on the curved surface structures. By applying an external force to the concave hole 222, the first occlusal groove 211 can be stably engaged with the fastener chain, preventing the socket 2 from moving when an external force is applied.

As shown in Fig. 7 and Fig. 8, the upper end of the second protruding structure 32 is provided with a stepped structure 321, and the stepped surface of the stepped structure 321 is arranged on the inner side of the second protruding structure 32, and the height of the stepped structure 321 is the same as that of the fastener element 1. The heights are equal, the height of the first protruding structure 21 is equal to the height 321 of the second protruding structure below the step surface.

Since the upper end of the second protruding structure 321 is provided with a stepped structure 321, it can be ensured that in the process of closing the zipper, one end of the fastener element 1 that is in contact with the first protruding structure 21 is mated with the above-mentioned stepped structure 321 to realize the latch 3 and the socket. Tight fit between 2 and tooth 1.

It can be seen from the views from various angles of the upper stop 4 shown in Figures 10 to 11 that the cross section of the upper stop 4 is semicircular, and the outer side of the upper stop 4 is provided with a third engaging groove 41, and the third engaging groove 41 engages in the At the head end position of the tooth chain belt, two upper stops 4 are respectively engaged on the tooth chain belt on which the socket 2 and the latch 3 are installed. When the slider moves to the head end position of the tooth chain belt, the upper stop 4 can prevent the slider from slipping out of the tooth chain belt.

According to the disclosure and teaching of the above specification, those skilled in the art to which the present utility model belongs can also change and modify the above embodiment. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model.

Claims (10)

1. a kind of circular separating zipper, including, chain tooth, socket, latch, it is upper only and tooth chain belt, it is characterised in that the chain tooth sheet Body section is semicircle, and the chain tooth body is provided with engaging groove and engagement projections, and two chain tooth bodies engage to form circle Tooth chain；

The socket includes base and the first bulge-structure, and first bulge-structure is above the base, outside the socket Side is provided with the first occlusal crib, and neck is provided with the inside of the base；The latch includes interface arrangment and the second bulge-structure, described The second occlusal crib is provided with the outside of latch；The interface arrangment is inserted in the neck, and first occlusal crib and described second is stung Groove is closed to be snapped at respectively on two tooth chain bands；

The upper section only is semicircle, and the upper outside only is provided with the 3rd occlusal crib.

2. a kind of circular separating zipper according to claim 1, it is characterised in that first bulge-structure and described The cross section of two bulge-structures is semicircle jaggy, and first occlusal crib is vertically from first bulge-structure Top is through to the bottom of the base.

3. a kind of circular separating zipper according to claim 1, it is characterised in that first occlusal crib is described first A pair of the first mutually symmetrical with tooth engageds are provided with the outside of bulge-structure, second occlusal crib is provided with a pair on the outside of the latch The second mutually symmetrical with tooth engaged, first tooth engaged and second tooth engaged are tongue structure.

A kind of 4. circular separating zipper according to claim 3, it is characterised in that the tongue structure top end has chamfering, The protrusion length of the tongue structure is 0.4~0.8mm, and protrusion width is 0.3~0.7mm.

A kind of 5. circular separating zipper according to claim 1 or 3, it is characterised in that first occlusal crib and described The width of second occlusal crib is inwardly gradually reduced by opening.

6. a kind of circular separating zipper according to claim 1, it is characterised in that the height of the neck is less than the bottom The height of seat, the contact surface that the neck connects with the base are provided with incline structure.

7. a kind of circular separating zipper according to claim 1, it is characterised in that the width of the interface arrangment is less than institute State the second bulge-structure.

A kind of 8. circular separating zipper according to claim 1, it is characterised in that the interface arrangment is to be obliquely installed, Angle of inclination is 5 °~10 °.

9. a kind of circular separating zipper according to claim 1, it is characterised in that the upper end of second bulge-structure is set There is ledge structure, the step surface of the ledge structure is located at the inner side of second bulge-structure, the height of the ledge structure It is equal with the height of the chain tooth, height and second bulge-structure below the step surface of first bulge-structure It is highly equal.

10. a kind of circular separating zipper according to claim 1, it is characterised in that the base is along the front and rear outer of longitudinal direction Surface is curved-surface structure, and the curved-surface structure is provided with pothole.