DE102018102960B4 - Attachment ring for a transport container, transport container and method for producing a attachment ring - Google Patents

Abstract

Attachment ring (14) for a transport container, which consists of a base (12) with at least one attachment ring (14) that can be positioned thereon and a container lid (13), with several side walls (18, 20), the length of which is defined by two spaced side edges (21) is limited and the opposite side edges (21) of two adjacent side walls are connected to one another, and the height of the side walls (18, 20) is limited by a first end face (27) and a second end face (28), with the first end face ( 27) a first profile section (29) and on the second end face (28) a second profile section (31) is formed, which is designed to be complementary to the first profile section (29) and when stacking two attachment rings (14) one on top of the other, the first profile section (29) of the lower attachment ring (14) engages in the second profile section (31) of the attachment ring (14) placed thereon, and a displacement movement transverse to the longitudinal extent of the side walls (18, 20) is blocked by the interlocking profile sections (29, 31) and the second profile section (31) is formed by a plurality of molded projections (32), which are arranged alternately along the second end face (28) and offset from one another, so that between the projections (32) there is a holding section (33) extending along the second end face (28). ) is formed, which is designed to accommodate the first profile section (29), characterized in that
- that projections (32) arranged alternately to the longitudinal center plane are provided in mirror images of one another, with an end section (49) of a projection (32) being assigned to an end section (49) of the opposite projection (32), so that contact surfaces (51) are provided in between form part of the holding section (33).

Description

The invention relates to a mounting ring for a transport container, a transport container with at least one mounting ring and a method for producing such a mounting ring.

From the DE 295 03 254 U1 a transport container is known which is formed from a base, which is preferably designed as a transport pallet, a mounting ring and a lid that can be placed on the mounting ring. The attachment ring is formed from a plurality of side walls, the side walls being designed to be foldable relative to one another, so that the attachment ring can be folded together. The folded attachment ring is placed on the floor and covered by the lid, so that this transport container can be transported back folded with a reduced transport volume.

From the JP 2007-099 369 A a foldable transport container is known. This includes a pallet on which individual side walls can be placed, which can be connected to one another using a detachable fastening strip. A container lid for closing an interior space is provided on the side walls.

From the US 2007/0170085 A1 A foldable container is also provided, which includes a pallet on which individual side walls are placed. The side walls are fastened to one another by a circumferential fastening band or a fastening band that extends over a corner. A container lid can be placed at the top of the side walls.

From the US 2014/0291196 A1 a foldable logistics container is known. This has a rectangular base on which two opposite end faces are articulated and two side walls are articulated between the two opposite end faces. In a folded position, the front sides are first folded onto the floor, so that the long sides can then rest on the front sides in order to have a small transport volume for return transport.

From the WO 2010/141 987 A1 a foldable transport container is also known. Four side walls are arranged on a pallet, with each side wall being hingedly connected to a long side of the pallet. Each side wall is in turn divided into three segments that are hinged together.

From the DE 602 12 622 T2 a container assembly with attachment rings is known. This attachment ring comprises freely protruding tabs on one end face, which are arranged alternately and at a gap from one another along the end face of a side wall. On the opposite end face of the attachment ring, lateral depressions are provided on the side wall, which correspond to the projections, so that the projections can engage in the lateral depressions.

From the JP 2016/088518 A a packaging container is known which includes a base as well as several attachment rings and a lid. On one end face of the attachment ring, protruding webs are provided along the longitudinal central axis. These engage in corresponding recesses in the end face of the attachment ring, which are formed on the opposite end face.

The object of the invention is to propose a mounting ring for a transport container that is easy to handle. The object of the invention is also to propose a transport container with such a mounting ring, which, in addition to being easy to handle, can also withstand high loads during use. The object of the invention is also to propose a method for producing such a mounting ring.

The task is achieved by a mounting ring for a transport container, which consists of a transport pallet, at least one mounting ring that can be positioned thereon and a container lid, with several side walls, the length of which is limited by two spaced side edges and the opposite side edges of two adjacent side walls are connected to one another, and the height of the side walls is limited by a first end face and a second end face, solved, with a first profile section being formed on the first end face and a second profile section being formed on the second end face, which is designed to be complementary to the first profile section and that through the interlocking profile sections a Displacement movement, transverse to the longitudinal extent of the side walls, is blocked. This forms a mounting ring for a transport container, which can be positioned in a defined position on the transport pallet or on another mounting ring. The positioning of the attachment ring to the transport pallet or to the further attachment ring takes place by the second profile section on a attachment ring engaging in the first profile section of the further attachment ring or the transport pallet. This interlocking of the profile sections can prevent a relative movement of the two attachment rings to one another or a relative movement of the attachment ring to the transport pallet. Through the first profile section and the second In the th profile section, several attachment rings can also be stacked one on top of the other, so that a transport volume of the transport container can be adjusted depending on the number of attachment rings stacked on top of one another.

When stacking the attachment rings one on top of the other, the first profile section of the lower attachment ring engages in the second profile section of the attachment ring placed thereon. This interlocking of the two profile sections when stacking the attachment rings allows a non-slip position of the attachment rings to one another to be formed. As a result, the attachment rings stacked one on top of the other cannot be moved relative to one another, even under load during use. Safe load transfer is possible when transport containers are stacked on top of each other.

A further embodiment of the attachment ring provides that the attachment ring engages with the second profile section on the first profile section of the transport pallet. This means that a non-slip position can be formed for the attachment ring placed on the transport pallet.

One embodiment of the attachment ring provides that the first profile section is formed by a web which extends at least in sections along the first end face and which is preferably arranged in a longitudinal center plane of the side wall or laterally offset. This forms a first profile section which extends in the form of a continuous web along the first end face. Such a continuous web can form a particularly resilient connection between the first profile section and the second profile section, since a transverse load can be absorbed over the entire length of the web. Likewise, the first profile section can be designed as an interrupted web.

The second profile section of the attachment ring is formed by a plurality of molded projections which are arranged opposite one another along the second end face, so that between the projections at least one holding section is formed which extends along the second end face and is designed to accommodate the first profile section. The holding section can extend over the length of the second end face, into which the first profile section designed as a web can engage. The opposing areas of the projections form a quasi-continuous holding section, although this is interrupted several times. The resulting lateral limitation for the first profile section prevents a relative displacement movement of the side walls transversely to the longitudinal extent of the second end face.

An advantageous embodiment of the attachment ring provides that the projections formed on the second end face are arranged eccentrically to the longitudinal center plane of the side wall, in particular flush with the outer wall sections of the side walls. The off-center arrangement of the projections relative to the longitudinal center plane of the side wall means that a wider holding section can be formed for the first profile section. This enables a wider design of the first profile section, so that it can have higher dimensional stability.

The projections of the attachment ring are arranged alternately and at a gap from one another along the second end face. As a result, projections are provided alternately at a distance from one another and form the lateral boundary of the holding section. This allows a plurality of projections to be provided along the second end face, each of which forms an individual delimiting component of the holding section. By a load being absorbed by a first profile section inserted into the holding section by a plurality of mutually spaced projections, an optimal introduction of force into the side wall can be made possible.

The attachment ring provides that the projections arranged alternately to the longitudinal center plane are provided in mirror images of one another, with an end section of one projection being assigned to an end section of the opposite projection, so that contact surfaces are provided in between, which form part of the holding section. Through these offset and mirror-inverted projections, the holding section can be formed between the mutually facing end sections of the projections.

A further development of the attachment ring provides that each projection has at least one contact surface facing the center of the end face, so that the opposing contact surfaces of the projections form a groove-shaped holding section. As a result, a large number of contact surfaces are formed, which form a lateral boundary to the direction of extension of the holding section along the second end face. A connection is thus formed between the first and second profile sections, which can withstand particularly high loads.

An advantageous embodiment of the attachment ring provides that the projections of the second profile section have a substantially C-shaped, U-shaped, V-shaped or trough-shaped profile cross section in a plan view, and preferably the profile openings of the substantially C-shaped, U-shaped, V-shaped or trough-shaped projections are aligned with the longitudinal center plane. As a result, the contact surfaces of the projections point to the longitudinal center plane of the side wall and form the holding section. Such profile cross sections enable particularly torsion-resistant and resilient projections, so that particularly high forces can be absorbed.

An advantageous development of the attachment ring provides that the side wall is formed by heat forming at least two plastic films into a multi-layer plate, in particular into a two-layer hollow chamber plate. By designing the side wall in this way, a particularly low weight of the side walls can be achieved. In this way, a mounting ring can be formed in which there is an optimal ratio between its own weight and transport volume.

It is particularly preferably provided that the projections of the second profile section of the attachment ring are formed by the heat forming of the at least two plastic films and preferably the end faces of the at least two plastic films form a contact surface of the projections. As a result, the projections can be formed in just one forming step at the same time as forming the side wall. In addition, the projections and the side wall can be designed as a coherent component, so that a higher dimensional stability of the projections can be achieved. The contact surface on the projections enables an approximately vertical application of force when placing the projections on another mounting ring or on the bottom of the transport pallet. This increases the stability of the transport containers.

Furthermore, it is preferably provided that the web of the first profile section is formed by the heat forming of the at least two plastic films and preferably the end faces of the at least two plastic films form a contact surface of the web. In this way it can also be provided that the web is formed in just one forming step at the same time as the side wall is formed.

One embodiment of the attachment ring provides that at least one guide plate is formed on the second end face of the side wall, which is provided on an outside of the side wall and has a greater height than the projections of the second profile section. Such a guide plate can make it easier to place the attachment ring on the ground or another attachment ring. This forms a lateral guide during placement, in that the guide plate first rests on an outside of the transport pallet or the further placement ring before the profile sections mesh with one another. In addition, the at least one guide plate can form a lateral boundary for the attachment ring, so that the attachment ring is prevented from slipping on the floor or two attachment rings are prevented from slipping relative to one another.

It is particularly preferably provided that the attachment ring has an articulated connection, in particular a film hinge, between the opposite side edges of the side walls, so that the attachment ring can be folded and in particular that two opposite side walls of the attachment ring are each formed from two side wall sections with a folding connection provided between them, so that the attachment ring can be folded in an M-fold. This creates a mounting ring that can be unfolded and folded together. This can be unfolded into a position of use to transport goods and folded up into a transport position to transport the attachment ring back. In this transport position, the attachment ring takes up a small volume of space, so that economical return transport is possible.

An advantageous development of the attachment ring provides that at least one corner element is provided in a corner area between two adjacent side walls, through which load transfer occurs when attachment rings are stacked one on top of the other. The corner elements of two stacked attachment rings lie on top of each other with the end faces of the corner elements, so that an upper corner element can be supported on a corner element underneath. This additional support allows greater force transmission to be achieved when stacked attachment rings are loaded.

The object is further achieved by a transport container, in particular a pallet container, with a base, with a lid and with at least one attachment ring arranged between them, the attachment ring being designed according to one of the previously described embodiments. This creates a transport container that can be composed of one or more attachment rings. This enables variable adaptation to a transport volume of the transport container. By folding the at least one attachment ring, a space-saving and therefore cost-effective return transport can be made possible.

An advantageous embodiment of the transport container provides that on the second forehead The second profile section provided on the side of the attachment ring is placed on a first profile section which extends at least in sections and is provided on an upper side of the base for a positive connection to the floor. As a result, the attachment ring can be placed on the floor in a non-slip manner by the first profile section provided on the floor engaging in the second profile section on the attachment ring.

Advantageously, the bottom of the transport container can be designed as a pallet, in particular as a multi-layer hollow chamber pallet. This makes it easy to handle the transport container, as it can be transported with a conventional forklift.

The task is also achieved by a method for producing a mounting ring consisting of several side walls, in particular for a transport container, in which a first, preferably heated, plastic film is introduced between an upper tool and a lower tool of a mold, in which the first plastic film is removed by applying a vacuum to the lower tool is brought into contact with the lower tool in order to form a first molded part, the lower tool having a first shaped profile in a first edge region, through which part of a first profile section is formed by a shoulder extending along the first edge region and the lower tool in a The second edge region opposite the first edge region has a second shaped profile, through which part of a second profile section is formed by a plurality of recesses arranged next to one another and at a distance from one another, in which a second, preferably heated, plastic film is introduced between the upper tool and the lower tool, in which the second plastic film is brought into contact with the upper tool by applying a vacuum to the upper tool in order to form a second molded part, the upper tool having a third shaped profile in a third edge region, through which a corresponding part of the first profile section is formed and the upper tool in a fourth edge region has a fourth shaped profile, through which a corresponding part of the second profile section is formed, in which the upper tool and the lower tool are closed and the first and second shaped parts are pressed and welded at least in the area of the shaped profiles of the lower tool and upper tool and after opening the upper tool and lower tool the at least one side wall with the first profile section, which is designed to be complementary to the first profile section, is removed from the mold. Such a method achieves a manufacturing process for a mounting ring, in which the side walls for the mounting ring are formed from two plastic films into hollow chamber panels and at the same time the first and second profile sections are formed on a first and second end face of the side walls. In this way, the side walls with the first and second profile sections formed thereon can be formed using a minimum of process steps. This results in a very quick and material-saving manufacturing process, so that a large number of attachment rings can be produced highly efficiently and cost-effectively.

A preferred embodiment of the method provides that after the at least one side wall has been removed from the mold, a holding section, in particular a groove, is introduced into the second profile section in a longitudinal center plane along an end face of the side wall or laterally offset from the longitudinal center plane of the side wall. As a result, a second profile section is formed with a groove-shaped holding section, into which the first profile section can be inserted, so that the first and second profile sections can mesh with one another. This groove-shaped holding section can be introduced, in particular milled, into the second profile section, for example with a hand or table milling device.

• 1 eine schematisch perspektivische Ansicht auf einen Transportbehälter,
• 2 eine schematisch perspektivische Ansicht auf eine Transportpalette,
• 3 eine perspektivische Ansicht von oben auf einen Aufsetzring,
• 4 eine perspektivische Detailansicht auf einen ersten Profilabschnitt des Aufsetzringes,
• 5 eine perspektivische Ansicht von unten auf den Aufsetzring,
• 6 eine perspektivische Detailansicht auf einen zweiten Profilabschnitt des Aufsetzringes,
• 7 eine Schnittansicht eines ersten und zweiten Profilabschnitts von zwei übereinandergestapelten Aufsetzringen,
• 8 eine perspektivische Schnittansicht des ersten und zweiten Profilabschnitts der zwei übereinandergestapelten Aufsetzringen,
• 9 eine Schnittansicht des auf einen Boden aufgesetzten Aufsetzring,
• 10 eine weitere Schnittansicht des auf den Boden aufgesetzten Aufsetzringes,
• 11 eine Detailansicht auf einen Eckbereich zweier übereinandergestapelter Aufsetzringe,
• 12 eine Schnittansicht gemäß dem Schnitt C-C in 11 des Eckbereiches zweier übereinandergestapelter Aufsetzringe,
• 13 eine perspektivische Ansicht auf den Aufsetzring in einer teilweise zusammengefalteten M-Faltung,
• 14 eine perspektivische Schnittansicht des Aufsetzringes mit einem aufgesetzten Deckel,
• 15 eine Seitenansicht auf ein Formwerkzeug zur Herstellung eines Aufsetzrings und
• 16 eine weitere Seitenansicht auf das Formwerkzeug gemäß 13 in einer um 180° gedrehten Position.

The invention and further advantageous embodiments and developments thereof are described and explained in more detail below using the examples shown in the drawings. The features that can be found in the description and the drawings can be used individually or in groups in any combination according to the invention. Show it:

• 1 a schematic perspective view of a transport container,
• 2 a schematic perspective view of a transport pallet,
• 3 a perspective view from above of a mounting ring,
• 4 a perspective detailed view of a first profile section of the attachment ring,
• 5 a perspective view from below of the attachment ring,
• 6 a perspective detailed view of a second profile section of the attachment ring,
• 7 a sectional view of a first and second profile section of two attachment rings stacked one on top of the other,
• 8th a perspective sectional view of the first and second profile sections of the two stacked attachment rings,
• 9 a sectional view of the attachment ring placed on a floor,
• 10 another sectional view of the attachment ring placed on the ground,
• 11 a detailed view of a corner area of two stacking rings stacked on top of each other,
• 12 a sectional view according to section CC in 11 the corner area of two stacking rings stacked on top of each other,
• 13 a perspective view of the attachment ring in a partially folded M-fold,
• 14 a perspective sectional view of the attachment ring with an attached lid,
• 15 a side view of a mold for producing a mounting ring and
• 16 another side view of the mold according to 13 in a 180° rotated position.

1 shows a schematic perspective view of a transport container 11. Such a transport container 11 is formed by a base 12, a lid 13 and attachment rings 14 arranged between them. Several attachment rings 14 can be stacked one above the other between the base 12, as shown in 1 is shown. As a result, a transport volume of the transport container 11 can be variably adjusted. It can also be provided that only one attachment ring 14 is provided between the base 12 and the lid 13. In addition, the lid 13 is not absolutely necessary to form the transport container 11. The floor 12 can be designed as a transport pallet. According to 1 the floor 12 is designed as a wooden pallet.

The floor 12 can also be used accordingly 2 be designed as a plastic pallet. Such a plastic pallet is designed in particular as a two- or multi-layer hollow chamber pallet. For this purpose, the hollow chamber pallet is formed into a multi-layer transport pallet by heat forming at least two plastic films.

The floor 12 has a profile area 16 which extends along an edge area 17 of the floor 12. This profile area 16 is designed as a web that extends along the edge area 17. This web can be provided continuously along the edge region 17, and the web can also be designed to be interrupted in its extension. It can also be provided that the floor 12 does not have a profile section 16.

3 shows a schematic perspective view of the attachment ring 14. This attachment ring 14 is formed from a plurality of side walls 18, 20, which preferably form a closed ring through articulated connections 22. The attachment ring 14 is adapted to the basic shape or support surface of the base 12. The attachment ring 14 consists of four side walls 18, 20. In a usage position 19 shown, the side walls 18, 20 form a rectangular attachment ring 14. An articulated connection 22 is provided between two adjacent side walls 18 on the adjacent side edges 21, through which adjacent side walls 18 , 20 are connected to each other. The joint connection 22 is designed as a film hinge, but can also be designed as any other joint connection 22. According to 3 the connection between two adjacent side walls 18, 20 is formed by an elongated corner element 25 arranged in the corner area. An articulated connection 22 designed as a film hinge is provided on both sides of this corner element 25 and is connected to the side wall 18 or the side wall 20.

Two mutually opposite side walls 20, which form a narrow side of the attachment ring 14, are each composed of two side wall sections 23, 24. These two side wall sections 23, 24 are of the same size. A folding connection 26 is provided between the two side wall sections 23, 24. As a result, the attachment ring 14 can be folded in an M-fold into a transport position and unfolded into a use position 19. This folding connection 26 can also be designed as a film hinge.

At least one limiting element 34 is provided on each of the two side walls 20, which limits the folding angle A between the two adjacent side wall sections 23, 24 when the attachment ring 14 is unfolded by moving the limiting element 34 into the use position 19 when the attachment ring 14 is unfolded.

The side walls 18, 20 are delimited by a first end face 27 and a second end face 28. The first end face 27 can form an upper end face of the side wall 18, 20 of the attachment ring 14 and the second end face 28 can form a lower end face. A first profile section 29 is provided on the first end face 27 and a second profile section 31 on the second end face 28.

The side walls 18, 20 are formed by heat forming several, in particular two, plastic films 45, 46. As a result, the side walls 18, 20 are designed as a multi-layer plate. In particular, the side walls 18, 20 are designed as a two-layer hollow chamber panel. The first profile section 29 is formed by the heat forming of the plastic films 45, 46.

In 4 a perspective detailed view of the first profile section 29 is shown on the side walls 18, 20. 4 also illustrates the design of the corner area between two adjacent side walls 18, 20. The elongated corner element 25 is provided between the side walls 18, 20, with an articulated connection 22 along the long sides of the corner element 25 as a film hinge between the corner element 25 and the side walls 18, 20 is trained. The joint connection 22 is assigned to an outside 44 of the side walls 18, 20. Also goes out 4 shows that stiffening profiles 47 are provided on the side walls 18, 20. These stiffening profiles 47 can be designed as ribs, beads or indentations in the side walls 18, 20, which are formed into hollow chamber panels by heat forming the plastic films 45, 46.

The first profile section 29 is formed by a web 30 extending along the first end face 27. This web 30 runs centrally to the thickness of the side wall 18, 20. This web 30 can be either continuous along its longitudinal extent or interrupted in its longitudinal extent.

The first profile section 29, designed as a web 30, is formed by the heat forming of the two plastic films 45, 46. The web 30 forms a contact surface 54, which is formed by the end faces 48 of the two plastic films 45, 46.

5 shows a schematic perspective view from below of the attachment ring 14. This view shows that the second profile section 31 is provided on the second end face 28. This second profile section 31 is formed by a plurality of projections 32 which are arranged along the second end face 28.

6 represents this second profile section 31 of the attachment ring 14 in a detailed view. The projections 32 are arranged opposite one another and alternately along the second end face 28. The projections 32 can be arranged at a gap from one another along the second end face 28. A holding section 33 formed thereby extends between the projections 32 along the second end face 28 and is intended to receive the first profile section 29 of a further attachment ring 14 or the profile area 16 of a base 12.

The projections 32, which are arranged alternately and opposite one another, are arranged essentially off-center to the thickness of the side wall 18, 20. In particular, it is provided that the projections 32 assigned to the inside 41 of the side wall 18, 20 are designed flush with the inside 41. The projections 32 assigned to the outside 44 of the side wall 18, 20 are accordingly designed to be flush with the outside 44 of the side wall 18.

In a plan view of the second end face 28, the projections 32 form a substantially C-shaped, U-shaped, V-shaped or trough-shaped profile cross section. The profile openings 48 of the projections 32 formed by the profile cross section point towards the center of the side wall 18. Due to the profile cross section of the projections 32, two end sections 49 are formed on each projection 32, which form part of the holding section 33.

An end section 49 of the projection 32 is assigned to an opposite end section 49 of the adjacent and mirror-inverted projection 32. The holding section 33 is provided between these mutually facing end sections 49 of two adjacent projections 32. The end sections 49 of the projections 32 form contact surfaces 51 in the direction of the holding section 33, which form a lateral boundary for a profile area 16 of the base 12 inserted into the holding section 33 or a first profile section 29 of a further attachment ring 14. The holding section 33 running between the projections 32 is thus designed as a groove defined by the contact surfaces 51 of the projections 32.

The projections 32 of the second profile section 31 are formed by heat forming the two plastic films 45, 46. The projections 32 are designed in such a way that they form support feet. The end faces of the projections 32, which are formed by the end faces of the two plastic films 45, 46, form a contact surface 52 of the projections 32.

The first and second profile sections 29 and 31 are formed by the two plastic films 45, 46. At the same time, the upper and lower end faces 27, 28 of the side walls 18, 20 are completely closed.

Additional guide plates can be placed on the second profile section 31 at regular intervals th 53 be molded. These guide plates 53 are offset outwards from the outside 44 of the side walls 18, 20. The guide plates 53 protrude beyond the projections 32.

These guide plates 53 form a guide when placing and stacking several attachment rings 14 or when placing the attachment ring 14 on the floor 12, in that the guide plates 53 rest laterally on the floor 12 or another attachment ring 14.

7 shows a sectional view of the first and second profile sections 29, 31 of two stacked attachment rings 14. This illustration makes it clear how the first profile section 29 of a lower attachment ring 14, designed as a web 30, is arranged in the holding section 33 of the second profile section 31 of an upper attachment ring 14. It also becomes clear that the web 30 is formed from the two plastic films 45, 46, with the end faces of the two plastic films 45, 46 forming the contact surface 54, which is placed on the second end face 28 of the upper attachment ring 14. The first profile section 29, designed as a web 30, is arranged essentially centrally to the thickness of the side wall 18.

The projections 32 of the second profile section 31 are arranged laterally offset from the first profile section 29. These form the lateral boundary of the holding section 33, so that the first profile section 29 is held in a fixed position transversely to its longitudinal extent. Also clarified 7 that the guide plate 53 provided on the second profile section 31 is offset outwards from the outside 44 of the side wall 18, 20 on the second profile section 31. When stacking two attachment rings 14 one on top of the other, this guide plate 53 lies against the outside 44 of the lower side wall 18, 20 for lateral guidance.

Out of 8th shows the arrangement of the first profile section 29 in the holding section 33 of the second profile section 31 in a perspective sectional view. Since the individual projections 32 are arranged alternately on a right side and a left side of the first profile section 29, there is a gap between two projections 32 that are flush with an inside 41 or an outside 44 of the side wall 18, 20. This is closed by the first profile section 29. By interlocking the first and second profile sections 29, 31, a closed interface can be created between two placement rings 14 lying one on top of the other and a placement ring 14 resting on the floor 12, so that loose piece goods can also be transported.

9 shows a sectional view through the attachment ring 14, which is placed on a base 12 with a profile area 16 provided in the edge area 17 according to section AA in 1 .

The profile section 16 on the base 12 corresponds in design to the first profile section 29 of the attachment ring 14 and is therefore designed as a continuous or interrupted web 30 along the edge region 17 of the base 12. This profile section 16 engages in the holding section 33 of the second profile section 31 of the attachment ring 14 placed on the floor 12. Here too, the projections 32 are placed on the floor 12 alternately on a left side and on a right side of the profile section 16 and thereby support the attachment ring 14 on the floor 12. At the same time, the contact surface 54 of the profile section 16 is supported on the second end face 28 of the side wall 18, 20.

10 shows a further sectional view of the attachment ring 14 placed on the floor 12 according to the section BB in 1 , where the cut BB is an offset cut from the cut AA in 9 through the guide plate 53 represents. This sectional view makes it clear that the guide plate 53 rests laterally on the outside of the base 12 and thereby blocks a lateral movement of the attachment ring 14 towards the base 12. In the area of the second profile section 31, in which the guide plate 53 is formed, no projections 32 are provided, which are placed on the floor 12 immediately adjacent to the profile area 16 designed as a web. As a result, the attachment ring 14 is supported in the area of the molded-on guide plate 53 exclusively via the second end face 28 of the side wall 18, 20, which rests on the contact surface 54 of the profile area 16 designed as a web.

11 shows a detailed view of the corner area of two stacked attachment rings 14. In this corner area, the corner element 25 is arranged between two adjacent side walls 18, 20 of the attachment ring 14. This wall section 25 is designed as a profile body which has an upper and a lower end face 72, 73. These upper and lower end faces 72, 73 of the wall section 25 each form a contact surface 52. If two attachment rings 14 are stacked one on top of the other, the contact area 52 of the lower end face 73 of the upper attachment ring 14 rests on the contact area 52 of the upper end face 72 of the lower attachment ring 14. The contact surfaces 52 of the end faces 72, 73 of the corner elements 25 thus form additional support between two attachment rings 14 stacked one above the other.

12 shows a sectional view of the corner area of two stacked attachment rings 14 according to section C - C in 11 . From this sectional view it is clear that the contact surface 52 of the lower end face 73 of the corner element 25 is arranged in a common plane with the contact surfaces 52 of the projections 32. As a result, when the attachment ring 14 is placed on the floor 12, both the contact surfaces 52 of the projections 32 and the contact surfaces 52 of the corner elements 25 formed by the lower end faces 73 rest on the floor 25 or on the end face.

The contact surface 52 of the upper end face 72 lies in a common plane with the first end face 27 of the side wall 18, 20. This ensures that when the attachment rings 14 are stacked one on top of the other, both the contact surfaces 52 of the projections 32 of the upper attachment ring 14 are on the upper end face 27 of the lower attachment ring 14 rest as well as the contact surfaces 52 of the lower end face 73 of the upper corner element 25 on the contact area 52 of the upper end face 73 of the lower corner element 25. This creates the largest possible support surface between two stacked attachment rings 14.

A lower portion of the corner element 25 can according to 11 and 12 be tapered in cross section. Due to this tapered cross section of the corner element 25, the contact surface 52 of the lower end face 73 can be placed on a transport pallet which has a web-shaped profile area 16 in the edge area 17. This profile area 16 can be provided in a corner area of the transport pallet, as shown in 2 is shown. The tapered cross section of the corner element 25 makes it possible for it to be placed on the transport pallet in the corner area between two adjacent profile areas 16.

In 13 is a schematic perspective top view of the attachment ring 14 shown in a partially folded M-fold. Due to this M-folding, the attachment ring 14 is out of the position of use 19 3 Can be folded into a transport position (not shown). In this transport position, the side wall sections 23, 24 of the side walls 20 are arranged folded between the adjacent side walls 18. In the transport position, the side wall sections 23, 24 and the two adjacent side walls 18 are arranged next to one another and parallel to one another.

Out of 13 It can be seen that a limiting element 34 can be arranged on one of the side wall sections 23, 24 of the side walls 20. This limiting element 34 is firmly connected to one of the side wall sections 23, 24. This can be molded, glued, welded, riveted, screwed or locked into place.

This limiting element 34 is assigned to a side edge 36 of the side wall section 23, 24 assigned to the folding connection 26 and partially projects beyond the side edge 36 of the side wall section 23, 24, as shown in 13 is shown. In the use position 19 (see 3 ) the area of the limiting element 34 that projects beyond the side edge 36 rests on a contact surface on the adjacent side wall section 24, 23. Due to this contact of the limiting element 34 on the contact surface of the adjacent side wall section 24, 23, a folding angle A of the folding connection 26 between the two side wall sections 23, 24 is limited to 180 degrees.

In the attachment ring 14 according to 13 only one limiting element 34 is provided on the side wall section 23. Likewise, several limiting elements 34 can be provided on the side wall section 23, 24. These can be provided at a distance from one another on one of the two side wall sections 23, 24 or alternatively on the two adjacent side wall sections 23, 24.

14 shows a schematic perspective sectional view of the attachment ring 14 with an attached cover 13. This cover 13 is placed on the first end face 27 of the attachment ring 14, so that it is supported by the contact surface 54 of the first profile section 29. The lid 13 has a circumferential lid edge 56 on which the lid 13 is held in a non-slip position relative to the attachment ring 14.

The 15 and 16 each show a schematic side view of a mold 57 for producing the previously described attachment ring 14 for the transport container 11. Shows 15 a side view of the mold 57 and 16 a side view of the mold 57 in a position rotated by 180 °.

To produce at least one side wall 18, 20, the first plastic film 45 is inserted between an upper tool 58 and a lower tool 59 of the mold 57. The first plastic film 45 is preferably previously heated and formed into a first molded part 60 using the mold 57 by a forming or deep-drawing process. For this purpose, a vacuum is first generated on the lower tool 59 so that the first plastic film 45 comes into contact with the lower tool 59 by applying the vacuum is brought to the lower tool 59 and the first molded part 60 is formed.

The lower tool 59 has a first shaped profile 66 in a first edge region 62, which has a shoulder 68 extending along the first edge region 62 in the first edge region 62. Opposite the first edge region 59, a second shaped profile 67 is provided on the lower tool 59 in a second edge region 63, through which part of a second profile section 31 is formed by a plurality of recesses 71 arranged next to one another and at a distance from one another. Through the depressions 71 in the second edge region 63, the projections 32 are formed on the first plastic film 45 during the deep-drawing process.

The second plastic film 46, which is also preferably heated, is then introduced between the upper tool 58 and the lower tool 59. By applying a vacuum to the upper tool 58, the second plastic film 46 is brought into contact with the upper tool 58 in order to form a second molded part 61.

For this purpose, the upper tool 58 has a third shaped profile 69 in a third edge region 64, which is designed to correspond to the first shaped profile 66 of the lower tool 59 and through which a corresponding part of the first profile section 29 is formed. In a fourth edge region 65 of the upper tool 58, a fourth shaped profile 70 is provided, through which a corresponding part of the second profile section 31 is formed.

By closing the upper tool 58 and the lower tool 59, the first and second molded parts 60, 61 are joined together, in particular pressed together. Due to the heating of the plastic films 45, 46, a welding takes place between the plastic films 45, 46. This takes place at least in the area of the shaped profiles 66, 67, 69, 70 of the lower tool 59 and the upper tool 58. The projections 32 are therefore welded together by the two Plastic films 45, 46 are formed. Likewise, the first profile section 29, designed as a web 30, is formed by the two plastic films 45, 46 welded together. After opening the upper tool 58 and lower tool 59, the side wall 18, 20 is removed from the mold 57.

After removing the at least one side wall 18, 20 from the mold 57, a groove-shaped holding section 33 is introduced into the second profile section 31 in the longitudinal center plane along the end face 28 of the side wall 18, 20 or laterally offset from the longitudinal center plane of the side wall 18, 20. The holding section 33 can be milled into the second profile section 31. For this purpose, in particular, a table milling device (not shown) can be used, which mills the groove-shaped holding section 33 into the second profile section 31. This table milling device has a horizontal support surface with a vertically oriented lateral contact surface for the second end face 28 of the side wall 18, 20, with a horizontally arranged end mill protruding from the lateral contact surface. By moving the side wall 18, 20 along with the second profile section 31 resting on the contact surface, the groove-shaped holding section 33 is milled into the second profile section 31 with the end mill. By changing the height of the finger milling cutter relative to the support surface of the table milling device, the alignment of the holding section 33 to the longitudinal center plane of the side wall 18, 20 can be varied.

Reference number list

11.

Transport container

12.

Floor

13.

Lid

14.

attachment ring

15. 16.

Profile area

17.

Edge area

18.

Side wall

19.

Position of use

20.

Side wall

21.

side edge

22.

Articulated connection

23.

Sidewall section

24.

Sidewall section

25.

Wall element

26.

folding connection

27.

first face

28.

second end face

29.

first profile section

30.

web

31.

second profile section

32.

Projections

33.

holding section

34.

Limiting element

36.

side edge

37.

investment area

38.

recess

39.

deepening

40. 41.

inside

42.

front side

43.

front side

44.

Outside

45.

First plastic film

46.

second plastic film

47.

stiffening profile

48.

Profile openings

49.

End section

50. 51.

investment area

52.

Contact area projections

53.

Guide plate

54.

Contact area jetty

55. 56.

Lid edge

57.

molding tool

58.

Upper tool

59.

sub tool

61.

Second molding

62.

First edge area

63.

Second edge area

64.

Third edge area

65.

Fourth edge area

66.

First shape profile

67.

Second shape profile

68.

Paragraph

69.

Third shape profile

70.

Fourth shape profile

71.

depressions

72.

upper front wall element

73.

lower front wall element

Claims (20)

Attachment ring (14) for a transport container, which consists of a base (12) with at least one attachment ring (14) that can be positioned thereon and a container lid (13), with several side walls (18, 20), the length of which is defined by two spaced side edges (21) is limited and the opposite side edges (21) of two adjacent side walls are connected to one another, and the height of the side walls (18, 20) is limited by a first end face (27) and a second end face (28), with the first end face ( 27) a first profile section (29) and on the second end face (28) a second profile section (31) is formed, which is designed to be complementary to the first profile section (29) and when stacking two attachment rings (14) one on top of the other, the first profile section (29) of the lower attachment ring (14) engages in the second profile section (31) of the attachment ring (14) placed thereon, and a displacement movement transverse to the longitudinal extent of the side walls (18, 20) is blocked by the interlocking profile sections (29, 31) and the second profile section (31) is formed by a plurality of molded projections (32), which are arranged alternately along the second end face (28) and offset from one another, so that between the projections (32) there is a holding section (33) extending along the second end face (28). ) is formed, which is designed to accommodate the first profile section (29), characterized in that - that projections (32) arranged alternately to the longitudinal center plane are provided in mirror images of one another, an end section (49) of a projection (32) being an end section (49) the opposite projection (32) is assigned, so that contact surfaces (51) are provided in between, which form part of the holding section (33). Placement ring after Claim 1 , characterized in that the attachment ring (14) engages with the second profile section (31) on the first profile section (29) of the transport pallet (12). Attachment ring according to one of the preceding claims, characterized in that the first profile section (29) is formed by a web (30) which extends at least in sections along the first end face (27) and which is in a longitudinal center plane of the side wall (18, 20) or laterally is arranged offset. Placement ring after Claim 1 , characterized in that the projections (32) formed on the second end face (28) are arranged eccentrically to the longitudinal center plane of the side wall (18, 20), in particular flush with the outer wall sections (23, 24) of the side walls (18, 20). Placement ring after Claim 1 , characterized in that each projection (32) has at least one contact surface (51) pointing towards the center of the end face (28), so that the opposite contact surfaces (51) of the projections (32) form a groove-shaped holding section (33). Attachment ring after one of the Claims 1 until 5 , characterized in that the projections (32) of the second profile section (31) form a substantially C-shaped, U-shaped in a top view gen, V-shaped or trough-shaped profile cross-section and preferably the profile openings (48) of the essentially C-shaped, U-shaped, V-shaped or trough-shaped projections (32) are aligned with the longitudinal center plane of the side wall (18, 20). Attachment ring according to one of the preceding claims, characterized in that the side wall (18, 20) is formed by heat forming at least two plastic films (45, 46) into a multi-layer plate, in particular into a two-layer hollow chamber plate. Placement ring after Claim 7 , characterized in that the projections (32) of the second profile section (31) are formed by the heat forming of the at least two plastic films (45, 46). Placement ring after Claim 8 , characterized in that end faces (27, 28) of the at least two plastic films (46) form a contact surface of the projections (32). Placement ring after Claim 7 , characterized in that the web (30) of the first profile section (29) is formed by heat forming the at least two plastic films (46). Placement ring after Claim 10 , characterized in that the end faces (27, 28) of the at least two plastic films (46) form a contact surface (54) of the web (30). Attachment ring according to one of the preceding claims, characterized in that at least one guide plate (53) is formed on the second end face (28) of the side wall (18, 20), which is provided on an outer side (44) of the side wall (18, 20). and has a greater height than the projections (32) of the second profile section (31). Attachment ring according to one of the preceding claims, characterized in that an articulated connection (22), in particular a film hinge, is provided between the opposite side edges (21) of the side walls (18, 20), so that the attachment ring (14) can be folded. Placement ring after Claim 13 , characterized in that two opposite side walls (20) of the attachment ring (14) are each formed from two side wall sections (23, 24) with a folding connection (26) provided between them, so that the attachment ring (14) can be folded in an M-fold . Attachment ring according to one of the preceding claims, characterized in that in a corner area between two adjacent side walls (18, 20) at least one corner element (25) is provided, through which load transfer takes place when attachment rings (14) are stacked one on top of the other. Transport container, in particular pallet container, with a base (12), with a container lid (13) and with at least one attachment ring (14) arranged between them, characterized in that the attachment ring (14) according to one of Claims 1 until 15 is trained. Transport container Claim 16 , characterized in that the second profile section (31) provided on the second end face (28) of the attachment ring (14) for a positive connection to the floor (12) is provided on a first profile section which extends at least in sections and is provided on an upper side of the floor (12). (29) is attached. Transport container according to one of the Claims 16 or 17 , characterized in that the base (12) is designed as a pallet, in particular as a multi-layer hollow chamber pallet. Method for producing a mounting ring (14) consisting of a plurality of side walls (18, 20) for a transport container (11), - in which a first, preferably heated, plastic film (46) is placed between an upper tool (58) and a lower tool (59) of a mold ( 57) is introduced, - in which the first plastic film (45) is brought into contact with the lower tool (59) by applying a vacuum to the lower tool (59) in order to form the first molded part (60), the lower tool (59) being in a first edge region (62) has a first shaped profile (66), through which a part of a first profile section (29) passes through a shoulder (68) extending along the first edge region (62) and - the lower tool (59) in one of the first The second edge region (63) opposite the edge region (62) has a second shaped profile (67), through which part of a second profile section (31) is formed by a plurality of depressions (71) arranged next to one another and at a distance from one another, - in which a second preferably heated one Plastic film (46) is introduced between the upper tool (58) and the lower tool (59), - in which the second plastic film (46) is brought into contact with the upper tool (58) by applying a vacuum to the upper tool (58) in order to achieve a to form a second molded part (61), the upper tool (58) being in a third edge area Rich (64) has a third shaped profile (69), through which a corresponding part of the first profile section (29) is formed and - the upper tool (58) has a fourth shaped profile (70) in a fourth edge region (65), through which a corresponding part of the second profile section (31) is formed, - in which the upper tool (58) and the lower tool (59) are closed and the first and second molded parts (60, 61) are at least in the area of the molded profiles (66, 67, 69, 70 ) of the lower tool (59) and upper tool (58) are pressed and welded and after opening the upper tool (58) and lower tool (59), the at least one side wall (18, 20) is formed with the first and complementary to the first profile section (29). second profile section (31) is removed from the mold (57). Procedure according to Claim 19 , characterized in that after removing the at least one side wall (18, 20) from the mold (57), a holding section (33), in particular a groove, in a longitudinal center plane along an end face (28) of the side wall (18, 20) or is introduced into the second profile section (31) laterally offset from the longitudinal center plane of the side wall (18, 20).

Images