JPH0516104Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

The present invention relates to a foldable transport container that can be stored in a folded state with a small volume.

[Conventional technology]

This type of foldable transport container was developed in 1983.
As provided in Publication No. 49322, etc., the lower end of the upper side plate and the upper end of the lower side plate are connected with a shaft pin so as to be vertically movable to form a side plate, and the upper end of the upper side plate is connected to the upper frame with a shaft pin. The lower ends of the lower side plates are connected to the bottom plate by shaft pins so as to be movable up and down, and the side plates are attached between the ends of the upper frame and the bottom plate so as to be foldable inward. In this case, it is assembled into a container by extending the side plates and used for transportation in this state.
In addition, by folding the side plates, it can be stored in a reduced-volume state.

[Problem that the idea aims to solve]

When objects are stored in the foldable transport container and transported, the foldable transport containers are stacked and loaded onto a truck or the like, so a large load is applied to the foldable transport container. However, since the upper plate and lower plate, the upper plate and upper frame, and the lower plate and bottom plate are connected by shaft pins, this large load is applied to the shaft pins, causing deformation of the shaft pins and causing the side plates to There was a problem in that it might not be possible to fold and spread the product smoothly. The present invention has been made in view of the above points, and it is an object of the present invention to provide a folding container for transportation in which there is no risk of deformation of the shaft pin due to the load caused by stacking.

[Means to solve the problem]

In the present invention, the lower end of the upper side plate 1 and the upper end of the lower side plate 2 are connected to be vertically movable to form the side plate 4, and the upper end of the upper side plate 1 is connected to the upper frame 5, and the lower end of the lower side plate 2 is connected to the bottom plate 6. In a foldable transportation container formed by attaching the side plate 4 between the ends of the upper frame 5 and the bottom plate 6 so as to be freely foldable inward, the side plate 4 can be extended. An upper contact surface 8 and a lower mounting surface 9 that face each other vertically are provided on the lower end surface of the upper side plate 1 and the upper end surface of the lower side plate 2, respectively, and the shaft holes of the upper side board 1 and the lower side board 2 through which the shaft pin 3 is passed are provided. 7
The shaft pin 3 is formed in a vertically elongated elongated hole 7a, and is also formed outside the upper contact surface 8 of the upper plate 1 and the lower mounting surface 9 of the lower plate 2, so that the shaft pin 3 can move along the elongated hole 7a. This allows the upper contact surface 8 to be placed on the lower placement surface 9, and also allows the shaft pin 3 to separate from both upper and lower edges of the elongated hole 7a while the upper contact surface 8 is placed on the lower placement surface 9. It is characterized by being located in such a way that the

[Effect]

At the pivot point between the upper plate 1 and the lower plate 2 of the side plates 4, which are subjected to a large force when stacked, the action of load on the shaft pin 3 can be avoided to prevent deformation of the shaft pin, and the lower mounting surface 9 The upper abutting surface 8 is placed on the top of the container to stably support the load of the stacked containers. In addition, since the elongated hole 7a through which the shaft pin 3 is passed is formed on the outer side of the upper contact surface 8 of the upper plate 1 and the lower mounting surface 9 of the lower plate 2, the inner side of the upper plate 1 and the lower plate 2 is There is no problem in folding it.

【Example】

The present invention will be explained in detail below with reference to Examples. The foldable transport container according to the present invention includes an upper frame 5 and a bottom plate 6, a pair of side plates 4, 4 attached between the left and right ends of the upper frame 5 and the bottom plate 6, and front and rear parts of the upper frame 5 and the bottom plate 6. It is formed by comprising a pair of end plates 13, 13 attached between each end portion of.
Each side plate 4 is formed so that it can be folded and expanded by connecting the upper end of the upper side plate 1 and the lower end of the lower side plate 2 with a shaft pin 3 so as to be rotatable in the vertical direction.
By pivoting the upper end of the upper side plate 1 to the upper frame 5 with the upper pivot pin 17 and the lower end of the lower side plate 2 to the bottom plate 6 with the lower pivot pin 18, respectively, so as to be freely rotatable in the vertical direction,
A side plate 4 is attached between an upper frame 5 and a bottom plate 6 so as to be folded inward. The upper end of the end plate 13 is attached to the upper frame 5 with a shaft pin 14 so that it can rotate freely in the vertical direction, and the lower part of the end plate 13 is left free and can be rotated inwardly and upwardly. It has been made possible to do so. This foldable transport container has side plates 4, 4 extended as shown in FIG. 4, and end plates 13, 13.
It can be assembled by hanging vertically between the side plates 4, 4, and in this state it is used for storing and transporting objects. In addition, when the foldable transport container is not used for transport, each end plate 13, 13 is
By flipping upward and folding the side plates 4, 4 inwardly, it can be stored in a compact folded state as shown in FIG. 6. In the foldable transport container formed as described above, the upper side plate 1 and the lower side plate 2 have a lower boss portion 1a provided at the lower end of the upper side plate 1 and an upper boss portion 2a provided at the upper end of the lower side plate 2. They are rotatably connected by providing shaft holes 7, 7 in the horizontal direction and passing shaft pins 3 through the shaft holes 7, 7, respectively. One or both of them are formed as vertically elongated holes 7a. In the illustrated embodiment, as shown in FIG. 1, the shaft hole 7 provided at the upper end of the lower plate 2 is formed as a long hole 7a, and the shaft pin 3 can move up and down through this long hole 7a.
The upper and lower boss portions 1a and 2a are provided so as to protrude outward from the upper side plate 1 and the lower side plate 2, respectively, and when the side plate 4 is extended, the lower end surface of the upper side plate 1 serves as an upper contact surface 8, and the lower side plate The upper end surface of 2 is arranged to be vertically opposed as a lower mounting surface 9, and the elongated hole 7a is located outside the upper contact surface 8 of the upper plate 1 and the lower mounting surface 9 of the lower plate 2. be. The upper frame 5 and the upper plate 1 are provided with upper pivot holes 19, 19 in the horizontal direction in a boss portion 5a provided on the lower surface of the upper frame 5 and an upper boss portion 1b provided on the upper end of the upper plate 1, respectively. They are rotatably connected by passing the upper pivot pin 17 through the upper pivot holes 19, 19, and one or both of the upper frame 5 and the upper pivot hole 19 of the upper side plate 1 are vertically long. It is formed as an upper pivot support elongated hole 19a. In the illustrated embodiment, the upper pivot hole 19 provided at the upper end of the upper plate 1 is formed as an upper pivot elongated hole 19a, as shown in FIG. can be moved up and down. When the side plate 4 is extended, the lower surface 20 of the upper frame 5 serves as an abutment surface, and the upper end surface 21 of the upper side plate 1 serves as a mounting surface and is vertically opposed to each other. Further, the lower side plate 2 and the bottom plate 6 have lower pivot holes 19, 19 horizontally extending in the lower boss portion 2b provided at the lower end of the lower side plate 2 and the boss portion 6a provided on the upper surface of the bottom plate 6, respectively.
and by passing the lower pivot pin 18 through the lower pivot holes 19, 19, they are rotatably connected, and one or both of the lower pivot holes 22 of the lower plate 2 and the bottom plate 6 are connected. It is formed as a vertically long lower pivot support hole 22a. In the illustrated embodiment, as shown in FIG. 3, the lower pivot support hole 22 provided in the bottom plate 6 is
The lower pivot pin 18 is configured to be able to move up and down through the lower pivot support elongated hole 22a. When the side plate 4 is extended, the lower end surface 2 of the lower side plate 2
3 is an abutting surface, and the surface 24 of the bottom plate 6 is a mounting surface that is vertically opposed to each other. However, when the foldable transport container formed as described above is used to store and transport objects in the assembled state as shown in Fig. 1, it is possible to stack the foldable transport containers vertically. When a load is applied to the collapsible transport container below,
According to the action of this load, the upper pivot pin 17 moves downward along the upper pivot elongated hole 19a of the upper plate 1, and the upper frame 5 moves downward relative to the upper plate 1. , the lower surface 20 of the upper frame 5 is placed on the upper end surface 21 of the upper side plate 1.
is placed as shown in FIG. 8a to FIG. 8b, and the shaft pin 3 is placed along the long hole 7a of the lower plate 2.
As the upper plate 1 moves downward, the upper plate 1 moves downward relative to the lower plate 2, and the upper contact surface 8 of the lower end of the upper plate 1 is placed on the lower mounting surface 9 of the upper end of the lower side plate 2. The lower pivot pin 1 is placed along the lower pivot elongated hole 22a of the bottom plate 6.
8 moves downward, the lower plate 2 moves downward relative to the bottom plate 6, and the lower end surface 23 of the lower plate 2 is moved from FIG. 9a to FIG. 9b on the surface 24 of the bottom plate 6. It is placed like this. In this way, the lower surface 20 of the upper frame 5 is connected to the upper end surface 21 of the upper plate 1 at the portions connected by the shaft pin 3 and the upper and lower pivot pins 17 and 18, respectively.
The upper contact surface 8 of the upper plate 1 is on the lower mounting surface 8 of the lower plate 2, and the lower end surface 23 of the lower plate 2 is on the upper surface 24 of the bottom plate 6.
The shaft pin 3 and the vertical pivot pins 17 and 18 are located away from the upper and lower edges of the elongated hole 7a and the upper and lower pivot elongated holes 19a and 22a, respectively. 3 and vertical pivot pin 1
This can prevent loads from acting on the parts 7 and 18. As shown in FIG. 10, a recess 16 is provided on the upper end surface of the lower plate 2, and a protrusion 15 is provided on the lower end surface of the upper plate 1, so that the protrusion 15 fits into the recess 16 when the side plate 4 is extended. It may also be possible to allow the side plates 4 to stand on their own in the extended state without wobbling when assembled. Since the upper plate 1 and the lower plate 2 can be moved vertically relative to each other by vertical movement of the shaft pin 3 along the long hole 7a,
The fitting of the protrusion 15 into the recess 16 when the side plate 4 is extended and the release of this fitting when the side plate 4 is folded can be performed smoothly.

[Effect of the idea]

In the present invention, the lower end of the upper side plate and the upper end of the lower side plate are connected to be vertically movable to form the side plate, and the upper end of the upper side plate is connected to the upper frame, and the lower end of the lower side plate is connected to the bottom plate, respectively. In a foldable transportation container formed by attaching side plates between the ends of the upper frame and the bottom plate so that they can be folded inwardly by movably connecting them, the upper frame and the bottom plate face each other vertically with the side plates extended. A contact surface and a lower mounting surface are provided on the lower end surface of the upper plate and the upper end surface of the lower plate, respectively, and at least one of the shaft holes of the upper and lower plates, through which the shaft pins are passed, is formed into a vertically long elongated hole. The upper contact surface is formed on the outer side of the lower mounting surface of the lower plate, and by moving the shaft pin along the elongated hole, the upper contact surface can be placed on the lower mounting surface, and the upper contact surface can be placed on the lower mounting surface. Since the shaft pin is positioned away from both the upper and lower edges of the elongated hole when the upper abutting surface is placed, the pivot pin between the upper and lower side plates, which is subject to large forces when stacked, is , it is possible to avoid the action of load on the shaft pin and prevent deformation of the shaft pin, and moreover, the upper contact surface is placed on the lower mounting surface, so that the load of the stacked containers can be stably supported. be. In addition, since the elongated hole through which the shaft pin is passed is formed on the outer side of the upper contact surface of the upper plate and the lower mounting surface of the lower plate, there is no problem in folding the upper and lower plates inward. It is something.

[Brief explanation of the drawing]

FIG. 1a is a perspective view of a part of an embodiment of the present invention;
Fig. 1b is a sectional view taken along line A-A in Fig. 1a, Figs. 2 and 3 are exploded perspective views of other parts of the present invention, and Fig. 4 shows the entire assembled state of the same. Fig. 5 is a perspective view showing the folding operation of the above, Fig. 6 is a perspective view showing the entire folded state of the above, Fig. 7 a, b, Fig. 8 a, b, Fig. 9 a,
b is an explanatory diagram showing a part of the same as above, and FIG. 10 is a sectional view of a part of another embodiment of the present invention. 1 is the upper plate, 2 is the lower plate, 3 is the shaft pin, 4 is the side plate, 5 is the upper frame, 6 is the bottom plate, 7 is the shaft hole, 7a is the elongated hole, 8 is the upper contact surface, and 9 is the lower mounting surface. be.

Claims (1)

[Claims for Utility Model Registration] (1) The lower end of the upper side plate and the upper end of the lower side plate are connected vertically movably to form a side plate, and the upper end of the upper side plate is used as an upper frame, and the lower end of the lower side plate is connected to A collapsible transport container formed by attaching the side plates between the ends of the upper frame and the bottom plate so that they can be folded inwardly by connecting them to the bottom plate so that they can move up and down, respectively, when the side plates are extended. An upper contact surface and a lower mounting surface that face each other vertically are provided on the lower end surface of the upper plate and the upper end surface of the lower plate, respectively, and at least one of the shaft holes of the upper and lower plates through which the shaft pin is passed is formed into a vertically long elongated hole. At the same time, the upper contact surface is formed on the outer side of the upper contact surface of the upper plate and the lower placement surface of the lower plate, and the upper contact surface can be placed on the lower placement surface by moving the shaft pin along the elongated hole. The folding container for transportation is constructed such that the shaft pin is located away from both upper and lower edges of the elongated hole with the upper abutting surface placed on the lower placing surface. (2) At least one of the upper frame and the upper pivot hole on the upper side plate through which the upper pivot pin is passed is formed into a vertically long upper pivot hole, so that the upper pivot pin can be moved along the upper pivot hole. A claim characterized in that the upper pivot pin is positioned away from both upper and lower edges of the upper pivot elongated hole while the lower surface of the upper frame is placed on the upper end surface of the upper plate. 1. The foldable transportation container according to 1. (3) At least one of the lower pivot holes on the lower plate and the bottom plate, through which the lower pivot pins are passed, is formed into vertically long lower pivot holes, and the lower pivot pins move along the lower pivot holes. Claim 1, wherein the lower pivot pin is positioned away from both upper and lower edges of the lower pivot slot with the lower end surface of the lower plate resting on the surface of the bottom plate. foldable transport container.