JPS6037297Y2 - storage container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a storage container that can be folded into a compact size.

BACKGROUND ART Conventionally, this type of collapsible storage container is known, for example, as disclosed in Japanese Utility Model Publication No. 50-3626.

By the way, in this conventional example, four L-shaped pieces A, A', A, and A' are arranged in a rectangular shape as shown in FIG. They supported each other.

However, there are four L-shaped pieces A. The rectangular frame shown in Figure 1a, in which A', A, and A' are connected by pivots, has only one pivot on each of the four sides, so it can be folded. If this were to happen, if the part indicated by It will be folded as shown in Figure 1, with the Y part folded inwards and the Y part folded outward.

If you fold the whole thing by folding the X part inward and the Y part outward, one side A2 of the L-shaped piece A and one side of the adjacent L-shaped piece A will be continuous in a straight line as shown in Figure 1 a. As shown in Fig. 1, the L-shaped plate A is bent into an L-shape and connected in a bent state, and one side A2 of the L-shaped plate A appears as a stepped portion B.

This step B is created by four L-shaped pieces A, A', A
, A' are pivotally supported, so when folding, the step B is produced because the folding process requires alternating inward and outward folds.

However, if the stepped portion B is formed during folding, there is a problem that the stepped portion becomes an obstacle during packaging, transportation, and storage, and the appearance when folded is also poor.

Moreover, as mentioned above, there are four L-shaped pieces A, A', A,
In the case of a device in which A' is pivoted, it is necessary to shorten the thickness when folded as shown in Fig. 1, and to shorten the width of the stepped portion B described above.

Therefore, in FIG. 1a, side Ai=A2. A3. A
When the lengths of 4 are Pl9, P29, P3tP, respectively, in order to shorten the folding thickness and shorten the width of the stepped portion B, it is necessary to set the length relationship as Pl>P2 and P3>P4.

However, although 1=P1+P3 in FIG. 1A, a problem arises in that 1 is longer than P2+P3 in FIG. 1A.

Both the problem of the generation of steps in the conventional example described above and the problem of the folding length 1 becoming long during folding can be solved by pivoting the L-shaped pieces A, A', A, and A' on each of the four sides. This is due to the structure in which there is one pivot for each, and the folding must be alternately folded inwards and outwards when folded.

Purpose of the invention The present invention was devised in view of the above-mentioned conventional problems.The purpose of this invention is to prevent only the vertical plates from being exposed on both outer surfaces when folded and to prevent the formation of stepped portions. To provide a storage container whose folded length can be made equal to the length of a vertical plate and whose length can be prevented from becoming too long when folded.

DISCLOSURE OF THE INVENTION The storage container of the present invention has vertical plates 1 of the same size disposed on the left and right sides, and has short projecting pieces 2 protruding inward from one end of the left and right vertical plates 1, and the other end of the vertical plates 1. A long protruding piece 3 that is slightly longer than the short protruding piece 2 is provided on the inner side, and the short protruding piece 2 of the left vertical plate 1 and the long protruding piece 3 of the right vertical plate 1 are opposed to each other, and the right vertical plate 1 The short protruding piece 2 and the long protruding piece 3 of the left vertical plate 1 are made to face each other, and the opposing short protruding piece 2 and long protruding piece 3 are connected by the side plate 4, and both ends of the side plate 4 and the short protruding piece 2 and The continuous part with the long protruding piece 3 is made freely foldable, and the side plate 4 is divided into two parts that can be folded left and right at the central bending part, and the left and right vertical plates 1 and the front and rear side plates 4 are made.
A wall frame 6 with a rectangular cross section that can be folded freely with
A bottom plate 5 that closes the lower part of the vertical plate 1 is foldably connected to the lower part of the vertical plate 1, and by adopting such a configuration, the above-mentioned conventional problems are solved. .

That is, in the present invention, a pair of rectangular opposing surfaces (i.e., the vertical plates) are constructed so that they cannot be folded, and only the other pair of opposing surfaces (i.e., the side plates) are made to fold inward so that they are exposed to the outside when folded. By doing so, when folded, only the vertical plates are exposed on both outer surfaces, preventing a step from forming.In addition, when a pair of opposing side plates are folded, the folded part at the center of the front side plate will overlap the rear length. By creating a structure in which the bent part at the center of the rear side plate faces the long protruding piece in the front, if the length of the side piece that divides the side plate into two is shorter than the vertical plate, any In either case, the folded length when folded can be the length of the vertical board, and the folded length when folded is the length of the vertical board + α. This solves the problems of the conventional example described above.

The present invention will be explained in detail below using examples.

In the figure, 1 is a vertical plate of the same size facing left and right,
A short protruding piece 2 is provided to protrude inward from one end of the left and right vertical plates 1, and a long protruding piece 3 having a slightly longer protrusion length than the short protruding piece 2 is protruded from the other end of the vertical plate 1.

Here, the short protruding piece 2 of the left vertical plate 1 and the long protruding piece 3 of the right vertical plate 1 face each other, and the short protruding piece 2 of the right vertical plate 1 and the left vertical plate 1
The long protruding pieces 3 are opposed to each other.

The opposing short protruding pieces 2 and long protruding pieces 3 are connected by a side plate 4, and the side plate 4 is divided into two parts at a central bending part so as to be foldable left and right.

As described above, the left and right vertical plates 1 having the short protruding pieces 2 and the long protruding pieces 3 and the front and rear side plates 4 constitute a wall frame 6 which is foldable and has a rectangular cross section.

In the figure, reference numeral 5 denotes a bottom plate that closes the lower part of the wall frame 6, and is foldably connected to the lower part of the vertical plate 1.

In the illustrated embodiment, the side plate 4 is composed of two side pieces 4a rotatably supported on a vertical axis 7. It is foldable and integrated by a thin hinge part 8 consisting of a ■-shaped groove part.

Therefore, in the illustrated embodiment, a short piece 2 and a long protruding piece 3 are integrally provided on both sides of the vertical plate 1, and side pieces 4a are connected from the short piece 2 and the long protruding piece 3 through thin hinge parts 8, respectively. A substantially U-shaped wall body 9 is formed by integrally projecting the U-shaped wall bodies 9 having the same shape at the waist and facing each other from side to side.
The wall frame body 6 is formed by rotatably supporting the wall frame body 6.

At this time, the left and right U-shaped walls 9 are made of joint resin molded parts formed with the same mold, and therefore, the vertical U-shaped walls 9 provided at the tips of both side pieces 4a of the left and right U-shaped walls 9 are The bearing 20 and the notch 22 into which it fits are the same as shown by A in FIG. .

In the illustrated embodiment, the bottom plate 5 is divided into two left and right parts, and the bottom plate 5 is formed by two bottom pieces 5a.

Each of the bottom pieces 5a is foldably connected to the lower part of the vertical plate 1, but in order to be foldably connected, the short piece 2 and the long protruding piece 3 are integrally protruded from the lower part of the inner surface of the vertical plate 1. Horizontal bearings 12 are provided on both sides of the bottom piece 5a, and the horizontal bearings 10 and 12 on both sides of the end of the bottom piece 5a are rotatably supported by a horizontal shaft 11.

Of course, the vertical plate 1 and the bottom piece 5a may be integrally connected via a thin hinge portion.

In this case, the U-shaped wall body 9 and the bottom piece 5a are integrally molded.

Therefore, the container to be formed can be formed simply by forming the U-shaped wall body 9 having the bottom piece 5a in the same mold and assembling two of them.

A bottom plate holder part 13 is protruded from the lower end of each inner surface of the vertical plate 1, the short piece 2, the long protrusion piece 3, and the side plate 4, and the edge of the bottom plate 5 is placed on the bottom plate holder part 13. The bottom plate receiver has a locking pawl 14 projecting above the portion 13, and the locking pawl 14 is elastically locked in a locking hole 15 provided in the bottom plate 5 in a detachable manner.

Note that a groove 16 may be provided at the tip of one bottom piece 5a, a downward protrusion 1f may be provided at the tip of the other bottom piece 5a, and the downward protrusion 17 may be locked in the groove 16 as shown in FIG. .

In this case, both bottom pieces 5a cannot be formed using the same mold.

Note that an engaging claw 18 and an engaging claw 19 that elastically engages with the engaging claw 18 in a detachable manner are provided at the tips of the opposing side pieces 4a.

When using the storage container configured as described above, the side plates 4 are opened at right angles to the vertical plate 1, and the left and right vertical plates 1 and the front and rear side plates 4 form a wall with a rectangular cross section. While forming the frame 6, the engaging claws 18 are elastically engaged with the engaging holes 19 to maintain the shape of the rectangular wall frame 6, and the bottom plate 5 is rotated and laid down horizontally to remove the bottom plate. Place the outer end of the lower surface of 5 on the bottom plate holder 13,
Each locking pawl 14 is elastically engaged with a locking hole 15 to assemble a storage container with an open top.

When the storage container is not in use, the locking claw 14 is inserted into the locking hole 1.
5 and fold the bottom plate 5 to the inner side of the vertical plate 1 (in the example shown in the figure, the bottom plate 5 is divided into left and right parts by two bottom pieces 5a, so fold each bottom piece 5a to the inner side of the left and right vertical plates 1). ), the engaging claw 18 is removed from the engaging hole 19, and the side piece 4 is divided into left and right parts forming the front side plate 4.
A is overlapped with the bottom piece 5a and folded, and the left and right divided side pieces 4a constituting the rear side plate 4 are overlapped with the bottom piece 5a and folded.

At this time, if the front side piece 4a is folded, the front side piece 4a
The bent portions between the rear side pieces 4a (i.e., the vertical bearing 20 portion) face the rear long protruding piece 3, and the bent portions between the rear side pieces 4a (i.e., the vertical bearing 20 portion) face the front long protruding piece 3. It is foldable.

Therefore, the protruding length of the long protruding piece 3 is slightly longer than the sum of the thickness of the bottom piece 5a and the thickness of the two side pieces 4a.

Here, the length Ll of the side piece 4a is shorter than the length h of the vertical plate 1.

Furthermore, if Ll<'-, it can of course be folded, but in the present invention, especially when Lz>Ll>', it can be folded as shown in the figure.

In the illustrated embodiment, the side piece 4a and the short piece 2 and the side piece 4a and the long protruding piece 3 are foldably integrated by the thin hinge part 8, but the side piece 4a, the short piece 2 and the side piece 4a are The elongated protruding piece 3 may be foldably connected to the long protruding piece 3 by pivot support using a bearing and a shaft, or may be foldably connected by a hinge.

Further, in the illustrated embodiment, the side pieces 4a are connected to each other by a vertical bearing 20 and a vertical shaft 7.
However, the side plates 4 may be integrally formed by integrally connecting the side pieces 4a with each other through the thin hinge portion 8.

Furthermore, although the illustrated embodiment shows an example in which the bottom plate 5 is divided into left and right bottom pieces 5a, the bottom plate 5 is made into a single piece, and one end of the bottom plate 5 is folded only into the lower part of the inner surface of one vertical plate 1. They may be freely connected.

The storage container having the above structure is made of synthetic resin, and may have a cage shape with a large number of holes, or may have no holes.

Note that a notch 21 may be provided at the lower end of the vertical plate 1 so that when folded, the locking pawl 14 elastically engages the lower edge of the vertical plate 1 at the notch 21 to maintain the folded state.

Effects of the invention In this invention, as described above, the short piece of the left vertical plate and the long protruding piece of the right vertical plate are made to face each other, and the short piece of the right vertical plate and the long protruding piece of the left vertical plate are made to face each other. The long protruding pieces face each other, the opposing short pieces and the long protruding pieces are connected by side plates, and both ends of the side plates and the continuous parts of the short pieces and the long protruding pieces are foldable, and the side plate is folded at the central folding part. It is divided into two parts that can be folded left and right, and the bottom plate is attached to the lower part of the vertical plate so that it can be folded freely.When folding, the bottom plate is folded along the vertical plate, and the front and rear side plates are folded in the center. It can be easily folded by folding each at the bending part, and since these opposing side plates can be folded inwards at the center, only the vertical plates are exposed on the outside of the folded Shigure, unlike the conventional way. There is no step.

Moreover, when folded, the bent part at the center of the front side plate faces the long protruding piece at the rear, and the bent part at the center of the rear side plate faces the long protruding piece from the front, so the length of the side piece that divides the side plate into two is It can be folded to any length as long as the length is shorter than the vertical plate, so there is no problem even if the side piece is slightly shorter than the vertical plate, and even though the length of the side plate can be made longer. First, when folded, only the vertical plates are exposed on the outer surface, so the length of the folded product does not become long as in the conventional case.

[Brief explanation of the drawing]

Figures 1a and b are perspective views of the conventional example and a perspective view of the folded state, Figure 2 is a perspective view of an embodiment of the present invention, Figure 3 is an exploded perspective view of the same, and Figure 4 is a schematic diagram of the same. A top view, FIG. 5 is a schematic perspective view showing the folded state of the above, and FIG. 6 is a sectional view showing an example of how the bottom pieces of the above fit together, 1 being a vertical plate, 2
3 is a short piece, 3 is a long protruding piece, 4 is a side plate, 5 is a bottom plate, and 6 is a wall frame body.

Claims (1)

[Scope of utility model registration request] Vertical plates of the same size are arranged on the left and right, and a short protrusion protrudes inward from one end of the left and right vertical plates, and a long protrusion slightly longer than the short protrusion protrudes from the other end of the vertical plate. The short protruding pieces of the left vertical plate are made to face the long protruding pieces of the right vertical plate, and the short protruding pieces of the right vertical plate are made to face the long protruding pieces of the left vertical plate. and the long protruding piece are connected by a side plate, and the continuous portion between both ends of the side plate and the short protruding piece and the long protruding piece is foldable,
The side plate can be freely folded left and right at the central bending part.
For storage, the bottom plate, which closes the lower part of a wall frame body with a rectangular cross section, is foldably connected to the lower part of the vertical plates, and is divided into left and right vertical plates and front and rear side plates, which can be folded freely. container.