Transport container

Abstract

To provide a transport container in which a shelf board and a corbel are connected by a single fixture.SOLUTION: At a shelf board 10, a first edge part 14 is provided on a frame part 11 side, and a second edge part 15 is provided on a main surface part 12 side. In a fixture 30, a first base part 31 and a second base part 32 are connected in an L-shape in a side view, two pressing parts 35 face the second base part 32 at the first base part 31, and on the back surface side of the pressing part 35, a first key part 36 engaged with the first edge part 14 is provided. Also, at a tip 32b of the second base part 32, a second key part 34 engaged with the second edge part 15 is provided, and a fin 37 protrudes so as to pass between the two pressing parts 35. At a corbel 20, a gripped structure is formed which has a pair of flange parts 22, and, between them, a bag part 23 for covering the fin 37. When the first key part 36 is engaged with the first edge part 14, and the second key part 34 is engaged with the second edge part 15, the flange part 22 is sandwiched between the pressing part 35 and the main surface part 12.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a transport container that is assembled by placing and fixing a resin receiving member on a metal plate and attaching the metal plate to a frame. [Background technology]

[0002] In a transport container for transporting heavy products such as automobile parts between factories, a support is placed on a metal shelf, and the product is placed on the support. The support is made by a known vacuum forming method in which a thermoplastic sheet such as polypropylene is heated and softened, and then deformed by vacuum pressure in a vacuum forming mold and cooled. The support is formed to a certain extent in a shape that follows the shape of the product so that the product is supported without being damaged or deformed. Meanwhile, the shelf supports the weight of the product.

[0003] There are two ways to connect the shelf board and the support material: using adhesive tape, or using fasteners such as rivets. When using adhesive tape, the container is fixed by adhesion, so the transport container after use cannot be recycled and must be disposed of as industrial waste. There is also a possibility of poor adhesion. On the other hand, when fasteners such as rivets are used to fasten the support material to the shelf board, the possibility of reusing the fasteners is being considered. For example, Patent Document 1 discloses a transport container in which the fasteners can be disassembled and reused repeatedly. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 7007006 Summary of the Invention [Problem to be solved by the invention]

[0005] For fasteners that can be disassembled for recycling, the parts of the fastener that are disassembled for recycling must be managed separately. Furthermore, the structure of the head or tail of the fastener is complex, and it is unavoidable that it protrudes significantly on the front and back surfaces compared to a simple rivet. Such protruding heads of the fasteners may interfere with the delivered products in the lower tier.

[0006] In addition, the vacuum-formed support is surrounded by flat ears. When fixing the support to the shelf board, if only the ears at the four corners are fixed with fasteners, the ends will lift up or shift. If there are only a few fasteners, the load will be concentrated on the fasteners, causing them to break or fall off, and there is a risk that the fasteners themselves will become foreign objects and get mixed into the product. Therefore, it is necessary to fix the support in many places, which is one of the limitations of the support design.

[0007] The raised areas of the support material inside the ears leave a cavity between the support material and the shelf board, so it is not appropriate to select such locations as locations for fastening with fasteners. If such locations were selected, the support material would not have any resilience and the fastening would be unclear. This could lead to the support material falling off or breaking due to over-tightening or insufficient tightening.

[0008] If the mounting location for the fixtures were provided on the inside of the support, it would affect the design of the support and may result in a reduction in the number of products that can be stored. Furthermore, it would be necessary to drill holes in the support to mount the fixtures, which could lead to the risk of foreign matter (burrs) getting mixed in.

[0009] The present invention has been made in consideration of the problems associated with the conventional fasteners, and has as its object to provide a transport container in which a shelf board and a support member are connected by a single fastener. [Means for solving the problem]

[0010] That is, the transport container of the present invention includes a receiving member having a pair of sides that are parallel to each other in a plan view and that is shaped to fit a product to be stored therein; A shelf board including a main surface portion having opposite sides facing each other in parallel, and a pair of frame portions extending perpendicularly from each of the opposite sides of the main surface portion; and a fixing device integrally formed of resin for fastening the shelf board and the receiving material. The shelf board is provided with a mounting base having first and second parallel edges that form a pair of cut-out openings, the first edge being provided on the frame side and the second edge being provided on the main surface side; The fastener has a first belt-like base and a second belt-like base connected in an L-shape in a side view, two pressing parts protruding parallel to each other along a long side of the first base with a gap therebetween so as to face the second base, a first key part is provided on the rear side of each pressing part to engage with the first edge part, a second key part is provided on the tip of the second base to engage with the second edge part, and a fin protruding from the second base part so as to pass through the space between the two pressing parts, The receiving member has a gripping structure formed on each of the pair of sides, and the gripping structure has a pair of flange portions that are sandwiched between the two pressing portions of the fixing device and the main surface portion, and a bag portion that covers the fin is formed between the pair of flange portions, When the first key portion engages with the first edge portion and the second key portion engages with the second edge portion, the flange portion is sandwiched between the pressing portion and the main surface portion. Effect of the Invention

[0011] In the transport container of the present invention, the fastener is a single component, and there is no need to separately manage the parts of the fastener disassembled for recycling as in the past. This makes it easy to manage both in use and for recycling. In addition, because the fastener is designed to be inserted into the notch in the shelf, only the clamping part of the fastener is exposed in a plan view of the transport container, which increases the freedom of the number and arrangement of stored products. [Brief description of the drawings]

[0012] [Figure 1] 1A and 1B are views showing a transport container, in which FIG. 1A is a perspective view and FIG. 1B is a perspective view of a support member and a shelf board. [Diagram 2] 2A and 2B are views showing a fixture, with FIG. 2A being a perspective view and FIG. 2B being a six-view view. [Diagram 3] 3A is a diagram illustrating how a support material is attached to a shelf board, and FIG. 3A is a partially enlarged view of the shelf board and the support material, and FIG. 3B is a diagram illustrating the positional relationship between the fixing tool and the mounting base. [Figure 4] 13 is a diagram showing how the fastener fits into the support material and the shelf board. FIG. BEST MODE FOR CARRYING OUT THEINVENTION

[0013] Hereinafter, an embodiment of a transport container according to the present invention will be described with reference to the drawings. FIG. 1A shows how a transport container is assembled. The transport container 1 includes a frame 2, a shelf board 10 mounted on the frame, a support member 20, and a fastener 30 for fastening them together. In the upper part of the frame 2, the shelf board 10 and the support member 20 are shown at the left end of the figure, which are integrated with the fastener 30. The shelf board 10 and the support member 20 form a set, and one or more of the sets are attached to the frame 2, and one or more products are mounted on the set. The right end of FIG. 1A shows a state in which the support member 20 is mounted on the shelf board 10 and is about to be fixed by the fastener 30. The support member 20 will be mounted on the shelf board 10 in the center of the frame 2, and then fixed by the fastener 30. FIG. 1B shows an enlarged view of the shelf board 10 and the support member 20 integrated with the fastener 30.

[0014] The receiving material 20 is a molded member made of resin, and is a molded product made by resin injection molding, or a molded product made by vacuum molding, or a molded product made by a combination of injection molding and vacuum molding (see Japanese Patent No. 7215795).

[0015] FIG. 2 shows the fixture 30. FIG. 2A is a perspective view, and FIG. 2B is a six-sided view. The fixture 30 is an integrally molded product made of resin. The fixture 30 has a first base 31 and a second base 32, which are strip-shaped and connected at right angles to each other in an L-shape when viewed from the side. The first base 31 is strip-shaped with a surface extending in the xy direction, with the y direction being the length direction of the long side in the three-dimensional coordinate system of x, y, and z shown in the figure. The second base 32 is provided from one long side 31a of the first base 31 toward the z direction. The second base 32 is strip-shaped with a length direction in the y direction and a surface extending in the yz direction. The first base 31 has two pressing parts 35, each having a length direction in the y direction, which are provided along the long side 31a and protrude in the z direction with a distance in the y direction. The distance between the ends of the two pressing parts 35 in the y direction is L1 (FIG. 2B).

[0016] Each pressing portion 35 has a contact surface 35a that extends in the yz direction, facing the second base portion 32. The contact surface 35a of each pressing portion 35 is parallel to the second base portion 32, separated by a distance e. The pressing portion 35 has a width in the y direction of a distance t and a distance s in the z direction. A number of first keys 36 having a surface that extends in the xz direction are provided on the back side of the contact surface 35a. The first keys 36 cooperate with the first base portion 31 to engage with a first edge portion 14 of the mounting base 13 described below. The upper side of the first keys 36 in the x direction is provided with a groove 36a having a distance u between the first base portion 31 and the first key portion 36. The lower portion of the groove 36a connects the first base portion 31 and the pressing portion 35, and functions as a rib that supports the pressing portion 35. The engagement is achieved by the first edge portion 14 entering the groove 36a. The distance from the bottom of the groove 36a to the second base portion 32 is a distance L2.

[0017] A connecting portion 33 that connects the first base portion 31 and the second base portion 32 and extends in the y direction is formed to be thinner than the wall thicknesses of the first base portion 31 and the second base portion 32, and is bendable. The second base portion 32 is provided with an opening 32a as a mold removal allowance for molding the pressing portion 35 by injecting resin into the mold.

[0018] The two second keys 34 are provided at the z-direction tip of the second base 32 with a distance in the y direction. Each second key 34 has a root 34a located a distance w away in the y direction from the z-direction tip 32b of the second base 32, and a top 34b protruding in the z direction from the x-direction tip of the root 34a.

[0019] The tip 32b and the top 34b of the second base 32 face each other with a distance between them. The z-direction end of each root portion 34a is located a distance L3 away from the first base portion 31 in the z direction. The distance between the ends of the two root portions 34a in the y direction is L4. A second edge portion 15 of the mounting base 13 (described later) is sandwiched and engaged between the second key portion 34 and the tip 32b.

[0020] The fin 37 protrudes in the x direction from the second base 32. The fin 37 protrudes in the x direction so as to pass through the space between the two pressing parts 35. The fin 37 has a first abutment surface 37a facing the first base 31. The first abutment surface 37a is a surface that extends in the x and y directions. A pair of left and right second abutment surfaces 37b rise up in the x direction on both sides of the first abutment surface 37a.

[0021] The second base portion 32 has a release groove 37c that is recessed in the z direction between the two second keys 34. The release groove 37c is provided on the front side in the z direction of the fin 37. The release groove 37c is a groove into which a jig, which will be described later, is inserted.

[0022] Next, the shelf board 10 will be described with reference to FIG. 3A. In the figure, three-dimensional coordinates of x, y, and z are added. The shelf board 10 is formed from a metal plate material. The shelf board 10 has a main surface portion 12 having a pair of opposite sides 12a that extend in the yz direction and face each other in parallel, on which a support member 20 is mounted, and a pair of frame portions 11 that extend perpendicularly from the opposite sides 12a in the x direction. In this embodiment, the main surface portion 12 is rectangular, and the opposite sides 12a of the main surface portion 12 are on a line in the y direction. The pair of frame portions 11 are arranged with a gap in the z direction, and this gap is the length of the support member 20 in the z direction.

[0023] The shelf board 10 is cut to form a mounting base 13. The mounting base 13 corresponds to the edges 14, 15 of the opening cut across the frame 11 and the main surface 12. The mounting base 13 is cut into a rectangular shape in the frame 11, so that a first edge 14 of distance L1 in the y direction is formed at a position distance L2 from the long side 31a in the x direction. The mounting base 13 is cut into a rectangular shape in the main surface 12, so that a second edge 15 of distance L4 in the y direction is formed at a position distance L3 from the long side 31a in the z direction. Both edges 14, 15 have a length in the y direction, so they are parallel to each other. In this embodiment, the distance L1 and the distance L4 are equal, and when the shelf board 10 is developed in a planar shape, the opening by the mounting base 13 is a rectangular opening with a long side of distance L1 and a short side of distance (L2+L3).

[0024] In Fig. 3A, a gripping structure 21 is formed on a receiving material 20 by a predetermined molding. The receiving material 20 has a pair of side portions 20a that are parallel and opposed to each other in a plan view, and is molded to fit the product to be stored. The gripping structures 21 are molded on each of the opposing pair of side portions 20a. The convex structural parts of the receiving material 20 other than the gripping structure 21 are molded to fit the product to be stored. In this embodiment, the receiving material 20 is rectangular in a plan view.

[0025] The gripped structures 21 of the pair of opposing side portions 20a have the same shape, so only the gripped structure 21 that appears on the near side in FIG. 3A will be described. The gripped structure 21 has two flange portions 22 that are sandwiched between the two pressing portions 35 of the fixing device 30 and the main surface portion 12 of the shelf board 10. The flange portions 22 are horizontal plate-like portions in a side view around the periphery of the receiving material 20. The ends of the flange portions 22 are the side portions 20a. Between the two flange portions 22, a first restricting wall 23a that spreads in the xy direction rises in the x direction. On both sides of the first restricting wall 23a, a pair of second restricting walls 23b rise in the x direction. The first restricting wall 23a and the pair of second restricting walls 23b form a bag portion 23 that covers the fin 37 in the y direction and z direction. In addition, since it is assumed that the receiving material 20 will be formed by vacuum forming, the first regulating wall 23a and the pair of second regulating walls 23b do not rise strictly vertically in the x direction, but are slightly inclined for the convenience of forming.

[0026] The first restriction wall 23a is a surface that comes into contact with the first abutment surface 37a of the fin 37. The abutment of the first abutment surface 37a restricts the movement of the first restriction wall 23a in the z direction. The pair of second restriction walls 23b are surfaces that come into contact with end surfaces 35b (see FIG. 2B) of the pressing portion 35. The abutment of the end surface 35b with one of the pair of second restriction walls 23b restricts the movement of the second restriction wall 23b in the y direction.

[0027] 3B and 4 are diagrams for explaining how the fixture 30 is attached to the mounting base 13. The fixture 30 is mounted so that the gripped structure 21 of the receiving material 20 can be seen from the opening of the mounting base 13. The second base portion 32 of the fixture 30 faces the mounting base 13 (FIG. 3B).

[0028] 4A-4C show cross sections of the support 20, shelf 10, and fixture 30 when the fixture 30 is attached to the mounting base 13. The second base 32 is slightly bent from the first base 31 at the connection 33 (FIG. 4A). The second base 32 is inserted into the opening of the mounting base 13 so as to be pushed up obliquely from the lower side in the x direction to the z direction. At this time, the rib 36 abuts against the first edge 14 of the mounting base 13, and since the lower side of the flange 22 is not supported, the flange 22 descends while storing elastic force. When the edge 14 of the mounting base 13 fits into the groove 36a, the flange 22 returns to its original shape, and the pressing part 35 is positioned above the flange 22 (FIG. 4B).

[0029] The second base 32 bent at the connection 33 is returned to its original position so that it is perpendicular to the first base 31 (FIG. 4C). The base 34a of the second key 34 elastically deforms, and the top 34b climbs over the main surface 12, and the edge 15 of the mounting base 13 fits between the top 34b and the tip 32b of the second base 32 (FIG. 4D). This completes the fixing of the shelf board 10 and the support member 20 by the fixing device 30.

[0030] The flange portion 22 of the receiving member 20 is pressed by the abutment surface 35a of the pressing portion 35, and the movement in the x direction is restricted (FIG. 4E). The movement of the receiving member 20 in the z direction is restricted by the first abutment surface 37a of the fin 37 abutting the first restriction wall 23a of the receiving member 20. In addition, since the distance in the z direction between the pair of frame portions 11 is the length of the receiving member 20 in the z direction, the movement of the receiving member 20 in the Z direction can also be restricted by the frame portion 11 of the shelf board 10. The movement of the receiving member 20 in the y direction is restricted by either the left or right second restriction wall 23b abutting the end face 35b of either the left or right pressing portion 35, or by either the left or right second restriction wall 23b abutting the left or right second abutment surface 37b. In addition, the distance from end to end of the pressing portion 35 in the y direction is L1, and the edge portion 14 formed on the frame portion 11 is the distance L1 in the y direction. The distance from one end of the base portion 34a to the other end in the y direction is L4, and the second edge portion 15 formed on the main surface portion 12 is also at a distance L4 in the y direction. The relationship of these distances can also contribute to restricting the movement of the receiving material 20 in the y direction, and thus the receiving material 20 is fixed in the three directions of x, y, and z.

[0031] 4F is a view in which the support member 20 has been removed to show how the fixture 30 fits into the shelf board 10. In the first key 36, the edge 14 of the mounting base 13 fits into the groove 36a. In the second key 34, the top 34b protrudes above the edge 15 of the mounting base 13.

[0032] When removing the support member 20 from the shelf board 10, insert a jig JG (e.g., a flathead screwdriver) into the release groove 37c and turn it counterclockwise (FIG. 4G). This operation pushes the fin 37 to the back in the z direction, and first the top portion 34b of the second key portion 34 is released from the edge portion 15 of the mounting base 13, and then the second base portion 32 is removed from the mounting base 13 by turning the jig JG counterclockwise. The fin 37, which has mass, is located behind the position of the release groove 37c, preventing the fixing device 30 from being damaged by the operation of the jig JG. After that, the first key portion 36 can be removed by following the procedure reverse to that for engaging with the edge portion 14 of the mounting base 13.

[0033] Thus, according to this embodiment, the gripping structure 21 must be provided on the receiving material 20 side, but this can be added without increasing the number of steps in the original process of forming the receiving material 20, and does not burden the work. On the other hand, the fixing device 30 is a single member, and there is no need to manage two types of members separately as in the past. This makes it easy to manage for use and recycling. Even if damage occurs in some parts, in the worst case, only the broken pieces fall off, and it is possible to prevent the fixing device 30 body and the receiving material 20 from falling off. Furthermore, since the fixing device 30 is structured to be inserted into the mounting base 13 of the shelf board 10, only the second base part 32 of the fixing device 30 in the xz plane is exposed on the lower side of the main surface part 12 of the shelf board 10, and does not interfere with the stored products in the x direction.

[0034] In this embodiment, the shelf board 10 has a main surface portion 12 extending in the yz direction on which the support member 20 is mounted, and a pair of frame portions 11 formed by bending opposite sides of the main surface portion 12 in the x direction. Alternatively, the pair of frame portions 11 may be formed using two angle bars arranged in parallel, and the shelf board 10 may be formed with a member that fixes the two angle bars so that the distance therebetween is constant. In this case, the main surface portion 12 is not a single plate material, but has a shape with a space in the center at a predetermined distance in the z direction. [Explanation of symbols]

[0035] 1. Transport container 2 Frames 10 Shelf 11 Frame 12 Main surface 12a Opposite Side 13 Mounting base 14 First edge 15 Second edge 20 Support material 20a Edge 21 Structure to be grasped 22 Flange 23 Bag part 30 Fixtures 31 1st base 31a Long side 32 Second base 32a aperture 32b Tip 33 Connection 34 Second Key 34a Base 34b Top of head 35 Holding part 35a Contact surface 35b End face 36 First Key 36a groove 37 Finn 37a First surface 37b Second surface 37c release groove JG Jig

Claims

1. A receiving member having a pair of sides that are parallel to each other in a plan view and that is shaped to fit a product to be stored; A shelf board including a main surface portion having opposite sides facing each other in parallel, and a pair of frame portions extending perpendicularly from each of the opposite sides of the main surface portion; and a fixing device integrally formed of resin for fastening the shelf board and the receiving material. The shelf board is provided with a mounting base having first and second parallel edges that form a pair of cut-out openings, the first edge being provided on the frame side and the second edge being provided on the main surface side, The fastener has a first belt-like base and a second belt-like base connected in an L-shape in a side view, two pressing parts protruding parallel to each other along a long side of the first base with a gap therebetween so as to face the second base, a first key part is provided on the rear side of each pressing part for engaging with the first edge part, a second key part is provided on the tip of the second base for engaging with the second edge part, and a fin protruding from the second base part so as to pass through the space between the two pressing parts, The receiving member has a gripping structure formed on each of the pair of side portions, the gripping structure has a pair of flange portions that are sandwiched between the two pressing portions of the fixing device and the main surface portion, and a bag portion that covers the fin is formed between the pair of flange portions, A transport container characterized in that when the first key portion engages with the first edge portion and the second key portion engages with the second edge portion, the flange portion is sandwiched between the pressing portion and the main surface portion.

2. 2. The transport container according to claim 1, wherein said shelf plate is formed by two angle members fixed at a fixed interval.

3. 2. The transport container according to claim 1, wherein the receiving material is formed by vacuum molding.

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