JP7441574B1 - transport container - Google Patents

Abstract

An object of the present invention is to provide a transportation container in which a shelf board and a receiving member are connected with a single fixture. A shelf board 10 is provided with a first edge 14 on the frame 11 side and a second edge 15 on the main surface 12 side. In the fixture 30, a first base 31 and a second base 32 are connected in an L-shape when viewed from the side, two holding parts 35 are provided on the first base 31 facing the second base 32, and two holding parts 35 are provided on the back side of the holding parts 35. is provided with a first key portion 36 that engages the first edge 14 . Further, a second key portion 34 that engages with the second edge portion 15 is provided at the tip 32b of the second base portion 32, and a fin 37 protrudes so as to pass between the two holding portions 35. The receiving member 20 is formed with a gripped structure that includes a pair of flange portions 22 and a bag portion 23 that covers the fins 37 between them. When the first key part 36 engages with the first edge part 14 and the second key part 34 engages with the second edge part 15, the flange part 22 is inserted between the holding part 35 and the main surface part 12. Get caught. [Selection diagram] Figure 4

Description

The present invention relates to a transportation container that is assembled by placing and fixing a resin receiving material on a metal plate and attaching the metal plate to a frame.

In transportation containers for transporting heavy products such as automobile parts between factories, receiving materials are placed on metal shelf boards, and the products are placed on the receiving materials. The receiving material is created by a known vacuum forming method in which a thermoplastic sheet such as polypropylene is softened by heating, deformed by vacuum pressure using a vacuum mold, and then cooled. The receiving material is formed in a shape that somewhat follows the shape of the product in order to receive the product so that it will not be damaged or deformed. On the other hand, the shelf supports the weight of the product.

To connect the shelf board and the receiving material, there are a method using adhesive tape and a method using fixing tools such as rivets. When adhesive tape is used, because it is fixed with adhesive, the transportation container after use cannot be recycled and is disposed of as industrial waste. Furthermore, poor adhesion may occur. On the other hand, when fixing the receiving material to the shelf board using fixing tools such as rivets, reusing the fixing tools is being considered. For example, Patent Document 1 discloses a transportation container whose fixing device can be disassembled and which can be used repeatedly.

Patent No. 7007006

For fixtures that can be disassembled for recycling, it is necessary to separately manage the parts of the fixture that are disassembled for recycling. Furthermore, the structure of the head or tail of the fixing device is complicated, and it is inevitable that the structure of the head or tail of the fixing device is larger than that of a simple rivet. The protruding head of the fixture sometimes interferes with the delivered products on the lower tier.

Further, the vacuum-formed receiving member is surrounded by flat ears. When fixing the receiving material to the shelf board, if only the ears at the four corners are fixed with fixing tools, the ends may lift up or shift. If the number of fixtures is small, there is a risk that the load will be concentrated on the fixtures, causing them to break or fall off, and the fixtures themselves to become foreign matter and get mixed into the product. Therefore, it is necessary to fix the periphery of the receiving material at multiple points, which is also cited as one of the limitations of the design of the receiving material.

Since the raised part of the receiving material inside the ear part creates a hollow space between the receiving material and the shelf board, it is inappropriate to select such a place as a place to fix with the fixing tool. If such a location were selected, the condition of the fastening would be unclear since the receiving material would not have resilience. As a result, there is a risk that the receiving material may fall off or be damaged due to over-tightening or under-tightening.

Providing a place for attaching fixtures inside the receiving material will affect the design of the receiving material and may reduce the number of products that can be accommodated. Furthermore, it was necessary to drill holes in the receiving material to attach the fixture, and there was a risk of foreign matter (burrs) getting mixed in.

The present invention was made in view of the problems of the conventional fixtures, and an object of the present invention is to provide a transportation container in which a shelf board and a receiving member are connected by a single fixture.

That is, the transportation container of the present invention has a receiving member that has a pair of parallel opposing sides in a plan view and is shaped to match the product to be stored;
A shelf board comprising a main surface portion having parallel opposite sides, and a pair of frame portions extending perpendicularly from each opposite side of the main surface portion;
a fixture integrally molded from resin that fastens the shelf board and the receiving material;
The shelf board has first and second parallel edges forming a pair of cut out openings, the first edge facing the frame side and the second edge facing the main surface side. Equipped with a mounting foundation installed in
In the fixing device, a band-shaped first base and a second base are connected in an L-shape in a side view, and two holding parts face the second base with an interval along the long side of the first base. A first key portion is provided on the back side of each of the holding portions and engages with the first edge portion, and a first key portion is provided on the back side of each of the holding portions, and a first key portion that engages with the first edge portion is provided on the tip of the second base portion. a second key part that engages with the second key part, and a fin protrudes from the second base part so as to pass through the space between the two holding parts,
In the receiving member, gripped structures are formed on each of the pair of side parts, and the gripped structures are formed in a pair of flange parts, each of which is sandwiched between the two holding parts of the fixture and the main surface part. is provided, and a bag portion covering 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 holding portion and the main surface portion. It is characterized by

In the transportation container of the present invention, the fixture is one member, and there is no need to separately manage parts of the fixture disassembled by recycling as in the past. Therefore, it is easy to manage whether it is used or recycled. In addition, since the fixtures are inserted into the notches of the shelves, only the holding parts of the fixtures are exposed when viewed from above, giving freedom in the number and arrangement of stored products. The degree is increasing.

FIG. 1A is a perspective view of a transport container, and FIG. 1B is a perspective view of a receiving material and a shelf board. FIG. 2A is a perspective view and FIG. 2B is a six-sided view of the fixture; FIG. 3A is a partially enlarged view of the shelf board and the receiving material, and FIG. 3B is a diagram showing the positional relationship between the fixture and the mounting base. FIG. It is a figure which shows a mode that a fixture fits into a receiving material and a shelf board.

Embodiments of the transportation container according to the present invention will be described below based on the drawings.
FIG. 1A shows how the transport container is assembled. The transportation container 1 includes a frame 2, a shelf board 10 mounted on the frame, a receiving member 20, and a fixture 30 for fastening these together. In the upper stage of the frame 2, a shelf board 10 and a receiving member 20, which are integrated by a fixture 30, are shown at the left end in the figure. The shelf board 10 and the receiving material 20 form one set, and one or more of this set is attached to the frame 2, and one or more products are mounted thereon. The right end of FIG. 1A shows a state in which the receiving member 20 is mounted on the shelf board 10 and is about to be fixed by the fixture 30. A receiving material 20 will now be mounted on the shelf board 10 at the center of the frame 2, and then fixed with a fixture 30. Note that FIG. 1B shows an enlarged view of the shelf board 10 and the receiving member 20 that are integrated by the fixture 30.

The receiving material 20 is a molded member made of resin, and is a molded product by injection molding of resin, a molded product by vacuum forming, or a molded product using a combination of injection molding and vacuum forming (see Patent No. 7215795). be.

The fixture 30 is shown in FIG. 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. In the fixture 30, a band-shaped first base 31 and a second base 32 are connected at right angles in an L-shape when viewed from the side. The first base 31 has a band shape with a long side extending in the y direction and a surface extending in the x and y directions in the three-dimensional coordinate system of x, y, and z shown in the figure. A second base 32 is provided from one long side 31a of the first base 31 in the z direction. The second base portion 32 has a strip shape having a length direction in the y direction and a surface extending in the yz direction. The first base portion 31 is provided with two holding portions 35 having a length in the y direction along the long side 31a, spaced apart in the y direction, and protruding in the z direction. The distance between the two holding parts 35 in the y direction is a distance L1 (FIG. 2B).

Each holding portion 35 has a contact surface 35a that faces the second base portion 32 and extends in the yz direction. The abutment surface 35a of each presser portion 35 is parallel to and spaced apart from the second base portion 32 by a distance e. The holding portion 35 has a distance t as a width in the y direction and a distance s in the z direction. A large number of first key portions 36 having surfaces extending in the xz direction are provided on the back side of the contact surface 35a. The first key portion 36 is a portion that cooperates with the first base portion 31 and engages with a first edge portion 14 of the mounting base 13, which will be described later. A groove 36a having a distance u from the first base 31 is provided on the upper side of the first key part 36 in the x direction. The lower part of the groove 36a connects the first base 31 and the holding part 35 and functions as a rib that supports the holding part 35. The first edge 14 enters the groove 36a and engages with the groove 36a. The distance from the bottom of the groove 36a to the second base 32 is a distance L2.

A connecting part 33 connecting the first base part 31 and the second base part 32 and extending in the y direction is formed thinner than the thickness of the first base part 31 and the second base part 32, and can be bent. ing. The second base portion 32 is provided with an opening 32a as a margin for molding the presser portion 35 by injecting resin into the mold.

Each of the two second key parts 34 is provided at the tip of the second base part 32 in the z direction with a distance in the y direction. Each of the second key parts 34 has a root part 34a at a position retreated in the y direction by a distance w from the tip 32b of the second base part 32 in the z direction, and a head protruding in the z direction at the tip of the root part 34a in the x direction. It has a top portion 34b.

The tip 32b of the second base 32 and the top 34b face each other with a distance between them. The end of each root portion 34a on the z-direction side is located at a distance L3 from the first base portion 31 in the z-direction. Moreover, the distance from one end to the other in the y direction of the two root portions 34a is L4. The second key part 34 and the tip 32b are engaged with each other with a second edge 15 of the mounting base 13, which will be described later, sandwiched therebetween.

The fins 37 protrude from the second base 32 in the x direction. The fins 37 protrude in the x direction so as to pass through the space between the two holding parts 35. The fin 37 has a first contact surface 37a facing the first base 31. The first contact surface 37a is a surface that extends in the xy direction. A pair of left and right second contact surfaces 37b stands up in the x direction on both sides of the first contact surface 37a.

Between the two second key parts 34, the second base part 32 has a release groove 37c that is recessed in the z direction. The release groove 37c is provided on the front side of the fin 37 in the z direction. The release groove 37c is a groove into which a jig, which will be described later, is inserted.

Next, the shelf board 10 will be explained using 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. The shelf board 10 has a main surface part 12 having a pair of parallel opposite sides 12a extending in the yz direction on which the receiving material 20 is mounted, and a pair of frame parts 11 extending perpendicularly to the x direction from the opposite sides 12a. In this embodiment, the main surface portion 12 has a rectangular shape, and the opposite side 12a of the main surface portion 12 is on the y-direction line. The pair of frame portions 11 are arranged with an interval in the z-direction, and this interval is the length of the receiving member 20 in the z-direction.

A mounting base 13 is formed on the shelf board 10 by performing a predetermined cutting process. The mounting base 13 corresponds to edges 14 and 15 of an opening cut across the frame portion 11 and the main surface portion 12. The mounting base 13 is cut into a rectangular shape in the frame portion 11 so that a first edge 14 is formed at a distance L2 in the x direction and a distance L1 in the y direction from the long side 31a. The mounting base 13 is cut into a rectangular shape on the main surface 12 so that a second edge 15 is formed at a distance L3 in the z direction from the long side 31a and a distance L4 in the y direction. There is. Since both the edges 14 and 15 have lengths in the y direction, they are parallel to each other. In this embodiment, the distance L1 and the distance L4 are made equal, and if the shelf board 10 is developed into a planar shape, the opening by the mounting base 13 will have the long side as the distance L1 and the short side as the distance (L2+L3). It has a rectangular opening.

In FIG. 3A, a grasped structure 21 is formed on the receiving member 20 by predetermined molding. The receiving material 20 has a pair of side portions 20a that face each other in parallel in a plan view, and is molded to match the product to be accommodated. Grasped structures 21 are formed on the pair of opposing sides 20a, respectively. The convex structure portion of the receiving member 20 other than the gripped structure 21 is shaped to match the product to be accommodated. In this embodiment, the receiving member 20 has a rectangular shape in plan view.

Since the grasped structures 21 of the pair of opposing sides 20a have the same shape, only the grasped structures 21 appearing on the near side in FIG. 3A will be described. The gripped structure 21 is provided with two flange portions 22 which are sandwiched between the two presser portions 35 of the fixture 30 and the main surface portion 12 of the shelf board 10 . The flange portion 22 is a horizontal plate-shaped portion around the receiving member 20 in a side view. The end of the flange portion 22 is a side portion 20a. Between the two flange portions 22, a first regulating wall 23a extending in the xy direction stands up in the x direction. A pair of second regulating walls 23b stands up in the x direction on both sides of the first regulating wall 23a. The first regulating wall 23a and the pair of second regulating walls 23b form a bag portion 23 that covers the fin 37 in the y and z directions. Note that since it is assumed that the receiving material 20 is formed by vacuum forming, both the first regulating wall 23a and the pair of second regulating walls 23b do not stand strictly perpendicular to the x direction, but due to the molding process. For convenience, it is slightly slanted.

The first regulating wall 23a is a surface that the first contact surface 37a of the fin 37 contacts. The movement of the first restriction wall 23a in the z direction is restricted by the contact with the first contact surface 37a. The pair of second regulating walls 23b are surfaces that come into contact with the end surface 35b (see FIG. 2B) of the holding portion 35. When the end surface 35b comes into contact with one of the pair of second restriction walls 23b, movement of the second restriction wall 23b in the y direction is restricted.

3B and FIG. 4 are diagrams illustrating how the fixture 30 is attached to the mounting foundation 13. The receiving member 20 is mounted so that the gripped structure 21 of the receiving member 20 can be seen through the opening of the mounting base 13. The second base 32 of the fixture 30 is directed towards the mounting base 13 (FIG. 3B).

4A to 4C show cross sections of the receiving member 20, the shelf board 10, and the 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 connecting portion 33 (FIG. 4A). Insert it into the opening of the mounting base 13 so as to push it up diagonally from the lower side in the x direction in the z direction. At this time, the rib 36 comes into contact with the first edge 14 of the mounting base 13, and since the lower side of the flange portion 22 is not supported, the flange portion 22 descends while accumulating elastic force. When the edge 14 of the mounting base 13 fits into the groove 36a, the flange portion 22 returns to its original shape, and the presser portion 35 is disposed above the flange portion 22 (FIG. 4B).

The second base portion 32 bent at the connecting portion 33 is returned to its original state so as to be perpendicular to the first base portion 31 (FIG. 4C). The root portion 34a of the second key portion 34 is elastically deformed, the top portion 34b rides over the main surface portion 12, and the edge 15 of the mounting base 13 is fitted between the top portion 34b and the tip 32b of the second base portion 32. (Figure 4D). With the above steps, the fixing of the shelf board 10 and the receiving material 20 by the fixture 30 is completed.

The flange portion 22 of the receiving member 20 is held down by the contact surface 35a of the holding portion 35, and its movement in the x direction is restricted (FIG. 4E). Movement of the receiving material 20 in the z direction is regulated by the first contact surface 37a of the fin 37 coming into contact with the first regulating wall 23a of the receiving material 20. Furthermore, since the distance between the pair of frame parts 11 in the Z direction is the length of the receiving material 20 in the Z direction, movement of the receiving material 20 in the Z direction can also be regulated by the frame part 11 of the shelf board 10. The movement of the receiving material 20 in the y direction is caused by either the left or right second regulating wall 23b coming into contact with the end surface 35b of the left or right holding part 35, or by the fact that either the left or right second regulating wall 23b comes into contact with either the left or the right second regulating wall 23b. It is regulated by coming into contact with the second abutment surface 37b. Further, the distance from one end of the holding part 35 in the y direction to the other end is L1, and the distance between the edge part 14 formed on the frame part 11 is L1 in the y direction. The distance from one end of the root portion 34a in the y direction to the other is L4, and the second edge 15 formed on the main surface portion 12 is a distance L4 in the y direction. The relationship between these distances can also contribute to regulating the movement of the receiving material 20 in the y direction, and in this way, the receiving material 20 is fixed in the three directions of x, y, and z.

FIG. 4F is a diagram with the receiving member 20 removed to show how the fixture 30 and the shelf board 10 fit together. In the first key portion 36, the edge 14 of the mounting base 13 fits into the groove 36a. Further, in the second key portion 34, the top portion 34b protrudes above the edge 15 of the mounting base 13.

When removing the receiving material 20 from the shelf board 10, insert the jig JG (for example, a flathead screwdriver) into the release groove 37c and operate it counterclockwise (FIG. 4G). By this operation, the fin 37 is pushed to the back side in the z direction, and the top part 34b of the second key part 34 first comes off from the edge 15 of the mounting base 13, and by counterclockwise operation of the jig JG, the mounting base is removed. The second base 32 is taken out from 13. A fin 37 with mass exists behind the position of the release groove 37c, and prevents the fixing tool 30 from being damaged by the operation using the jig JG. After that, the first key part 36 can be removed by reversing the procedure for engaging the edge 14 of the mounting base 13.

As described above, according to this embodiment, it is necessary to provide the gripped structure 21 on the side of the receiving material 20, but this can be added without increasing the number of steps in the original process of forming the receiving material 20. It does not become a burden on the work. On the other hand, the fixture 30 is one member, and there is no need to separately manage two types of members as in the past. Therefore, it is easy to manage whether it is used or recycled. Moreover, even if damage occurs in some parts, in the worst case, only the damaged pieces will fall off, and it is possible to avoid falling off of the fixture 30 main body and the receiving member 20. Furthermore, since the fixture 30 is structured to be inserted into the mounting base 13 of the shelf board 10, what is exposed below the main surface portion 12 of the shelf board 10 is the xz-planar second base 32 of the fixture 30. only, and does not interfere with the stored products in the x direction.

In this embodiment, the shelf board 10 includes a main surface section 12 that extends in the yz direction on which the receiving material 20 is mounted, and a pair of frame sections 11 formed by bending the opposite sides of the main surface section 12 in the x direction. It was assumed that the Instead, the pair of frame parts 11 may be formed using two angle members arranged in parallel, and the shelf board 10 may be formed with a member that fixes the two angle members so that the distance between them is constant. . In this case, the main surface portion 12 is not a single plate but has a shape with a space provided at the center at a predetermined distance in the z direction.

1 Transport container 2 Frame 10 Shelf board 11 Frame portion 12 Main surface portion 12a Opposite side 13 Mounting base 14 First edge portion 15 Second edge portion 20 Receiving material 20a Side portion 21 Grasped structure 22 Flange portion 23 Bag portion 30 Fixing tool 31 First base 31a Long side 32 Second base 32a Opening 32b Tip 33 Connection part 34 Second key part 34a Root part 34b Parietal part 35 Holding part 35a Abutment surface 35b End surface 36 First key part 36a Groove 37 Fin 37a First abutment Surface 37b Second contact surface 37c Release groove JG Jig

Claims (3)

a receiving material having a pair of parallel opposing sides in a plan view and shaped to match the product to be accommodated;
A shelf board comprising a main surface portion having parallel opposite sides, and a pair of frame portions extending perpendicularly from each opposite side of the main surface portion;
a fixture integrally molded from resin that fastens the shelf board and the receiving material;
The shelf board has first and second parallel edges forming a pair of cut out openings, the first edge facing the frame side and the second edge facing the main surface side. Equipped with a mounting foundation installed in
In the fixing device, a band-shaped first base and a second base are connected in an L-shape in a side view, and two holding parts face the second base with an interval along the long side of the first base. A first key portion is provided on the back side of each of the holding portions and engages with the first edge portion, and a first key portion is provided on the back side of each of the holding portions, and a first key portion that engages with the first edge portion is provided on the tip of the second base portion. a second key part that engages with the second key part, and a fin protrudes from the second base part so as to pass through the space between the two holding parts,
In the receiving member, gripped structures are formed on each of the pair of side parts, and the gripped structures are formed in a pair of flange parts, each of which is sandwiched between the two holding parts of the fixture and the main surface part. is provided, and a bag portion covering 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 holding portion and the main surface portion. A transport container featuring:
2. The transportation container according to claim 1, wherein the shelf board is formed by two angle members fixed at a constant interval.
The transportation container according to claim 1, wherein the receiving material is a receiving material formed by vacuum forming.