JPH09267832A - Collapsible container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To erect short side panels while long side panels that are previously erected are prevented from falling down when a collapsible container is assembled. SOLUTION: Fastening protrusions are projected upward from parts of the long sides of a base panel 1. Elastic fastening pieces 6 projected downward from a part of the lower end of a long side panel 2 elastically get over the fastening protrusions and connect with the outer side faces of the fastening protrusions when the long side panel 2 is turned. Fitting holes are provided in a part of the upside of the base panel 1 along the long sides. Fitting protrusions projected downward from a part of the lower end of the long side panel 2 are fitted in the fitting holes with the long side panel 2 in the erected state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a side plate on a short side rotatably mounted on a short side opposite to a side plate on a long side rotatably mounted on a long side opposed to a rectangular bottom plate. Folding the and the side plates on the short side and then the side plates on the long side, and then standing up the side plates on the long side, and then standing up the side plates on the short side to assemble them into a box-shaped folding container. It is about.

[0002]

2. Description of the Related Art Conventionally, a long bottom side plate is rotatably attached to opposite long sides of a rectangular bottom plate, and a short side side plate is rotatably attached to opposite short sides. The container is known. This folding container is folded in a state in which the side plate on the short side is laid down and the side plate on the long side is laid down, and the side plate on the long side is erected, and then the side plate on the short side is erected to assemble into a box shape. It is configured as follows. By doing so, the side plate on the long side can be hidden by the side plate on the long side as much as possible in the folded state, and the side plate on the short side can be folded and fit well.

[0003]

However, in assembling the folding container as described above into a box shape, first, the side plates on the opposite long sides are rotated to stand up, and then the opposite short sides are assembled. The side plates are erected to assemble in a box shape.During this assembling operation, when the side plates on the short side are erected, the side plates on the long side that were erected first fell down and the side plates on the short side erected. I can not do it. Therefore, conventionally, when the side plate on the long side is raised by rotating the side plate on the long side and then the side plate on the short side is raised, the side plate on the short side is supported by hand so as not to fall down. There is a pair of side plates on the long side, and it is substantially the work of one person to raise the side plates on the short side while supporting both side plates on the long side by hand. It is currently impossible to support one side plate of both long sides with one hand, and the other side of the side plate on the short side to stand up. There was a problem that the operation of assembling to was troublesome.

The present invention has been made in view of the above problems, and when assembling a folding container into a box shape, the side plate on the long side is first erected while the side plate on the long side is first erected. It is an object of the present invention to provide a folding container that can be easily assembled in the shape of a box by raising the side plate on the short side while preventing it from collapsing.

[0005]

In order to achieve the above object, the folding container according to the present invention has a short side opposite to a side plate 2 on the long side rotatably attached to the opposite long sides of a rectangular bottom plate 1. The side plate 3 on the short side that is rotatably attached to the side plate 3 is folded and the side plate 3 on the long side is folded and the side plate 2 on the long side is erected. Later, in the folding container 4 in which the side plate 3 on the short side is erected and assembled in a box shape, the locking projection 5 is projected upward on a part of the long side of the upper surface of the bottom plate 1, and the long side An elastic locking piece 6 that elastically rides over the locking projection piece 5 and locks on the outer surface of the locking projection piece 5 due to the rotation of the side plate 2 on the long side at a part of the lower end portion of the side plate 2.
And a fitting hole 7 is formed in a part of the upper surface of the bottom plate 1 on the long side thereof, and a part of the lower end of the side plate 2 on the long side of the side plate 2 of the long side is formed. The present invention is characterized in that a fitting projection 8 that fits into the fitting hole 7 in a standing state is provided so as to project downward. According to the present invention, with such a configuration, when the folding container 4 is assembled into a box shape, first, the side plate 2 on the long side is erected, and the elastic protrusion 6 is attached to the engagement protrusion 5. And the fitting projection 8 is fitted into the fitting hole 7, thereby fitting the fitting projection 8 with the elastic locking piece 6 and fitting the fitting projection 8 with the fitting hole 7. By the two falling prevention means called fitting, the side plate 2 on the long side is prevented from falling inward and the standing state is maintained. The side plate 3 can be rotated to stand up, and the side plate 3 on the short side can be easily stood up.

[0006]

Embodiments of the present invention will be described below. Long-side side plates 2 are rotatably attached to the opposite long-side sides of a rectangular bottom plate 1 made of synthetic resin, and short-side opposite short-side sides of the bottom plate 1. The side plate 3 on the side is rotatably attached.

The side plate 2 on the long side and the side plate 3 on the short side are both bearing portions 1 in which a horizontal shaft portion 9 provided on the lower end portion is provided on the bottom plate 1.
The side plate 2 on the long side and the side plate 3 on the short side are rotatably attached to the bottom plate 1 by being fitted in the horizontal bearing holes 0. Here, the height position of the pivotal support portion of the side plate 2 on the long side to the bottom plate 1 and the pivotal support position of the side plate 3 on the short side to the bottom plate 1 are different from each other. The height position of the pivot portion of the side plate 2 on the long side is set higher than the height position of the pivot portion of the side plate 3 of the side plate 3, and in the folded state, as shown in FIGS. Fold the side plate 3 on the short side and stack it on the bottom plate 1,
Next, the side plate 2 on the long side is folded and overlapped on the side plate 3 on the short side.

That is, as shown in FIGS. 1 and 2, the bottom plate 1
A rising projection 12 is provided over the entire length of the long side excluding both ends on the long side of the upper surface of the upper surface of the bearing. The plurality of bearings on the long side are provided on the rising projection 12 as shown in FIGS. 7 and 8. The protrusion 10 is provided on a part of the upper surface of the rising protrusion 12, and the engaging protrusion 5 is protruded upward. Further, as shown in FIGS. A supporting projection 14 is provided on a portion of the upper surface of the upper portion of the upper surface of the figure, excluding a portion where the locking projection 5 is provided, and the supporting projection 14 is provided upward. As described above, the fitting holes 7 are provided in the upper surface portion of the portions of the bottom plate 1 on both sides of the long side where the rising protrusions 12 are not provided.

On the other hand, as shown in FIGS. 11 and 12, on the short side of the bottom plate 1, the bearing portion 1 is directly connected to the upper surface of the bottom plate 1.
0 is projected. The bearing portion 10 protruding above the rising protrusion 12 on the long side is positioned higher than the bearing portion 10 directly protruding from the bottom plate 1 on the short side by the height of the rising protrusion 12. , The rising protrusion 1
Since the height of 2 is substantially the same as the thickness of the side plate 3 on the short side, the side plate 3 on the short side pivotally supported by the bearing portion 10 on the short side is laid on the upper surface of the bottom plate 1 sideways. After that, the side plate 2 on the long side, which is rotatably supported by the bearing portion 10 on the long side, is laid sideways on the side plate 3 on the short side so that it can be compactly folded.

Both ends of the lower end of the side plate 2 on the long side are shown in FIG.
As shown in FIG. 2, FIG. 9 and FIG. 10, it is downwardly projecting to form a downward leg 15, and a fitting projection 8 is provided on the lower surface of the downward leg 15 so as to project downward. . As shown in FIGS. 9 and 10, the corner portion on the inner surface side of the lower end portion of the downward leg 15 has a chamfered portion 16 which is chamfered in an arc shape. As shown in FIGS. 7 and 8, a plurality of recesses 17 are provided at the lower end of the side plate 2 on the long side except for both ends. An inverted L-shaped elastic locking piece 6 having elasticity is provided so as to project downward. In addition, as shown in FIG. 5 and FIG. 6, the outer surface side is recessed in the part other than the part where the recessed part 17 is provided in the lower end part of the part except the both ends of the side plate 2 on the long side. A mounting portion 18 that is horizontal when the side plate 2 on the side is erected and an outward fall prevention surface portion 19 that is vertical are provided.

Therefore, in order to assemble the folding container 4 having the above-mentioned configuration into a box shape, the side plate 2 on the long side is erected, and the side plate 2 on the long side is rotated so that the elastic locking piece 6 is formed. By elastically deforming and overcoming the locking projection 5, the elastic locking piece 6 is locked to the outer surface side of the locking projection 5 as shown in FIG. 7, and at the same time, the side plate 2 on the long side is rotated. The chamfered portion 16 is used as a guide to elastically fit the fitting projection 8 into the fitting hole 7 as shown in FIG. 9, and thus the locking projection 5 and the elastic locking piece 6 are locked and fitted. The fitting between the abutting portion 8 and the fitting hole 7
The two falling prevention means prevent the side plate 2 on the long side from falling inside. Further, in a state in which the side plate 2 on the long side is rotated and erected, as shown in FIG. 5, the mounting portion 18 of the side plate 2 on the long side is further attached to the upper end surface portion of the support protrusion 14.
Is placed to support the load from the side plate 2 on the long side, and the falling-out prevention surface portion 19 is supported by the support protrusion 14.
The side plate 2 on the long side, which closely faces the inner surface of the plate, is prevented from falling outward. Note that FIG. 6, FIG. 8, and FIG.
Reference numeral 0 indicates the state before standing of the side plate 2 on the long side in the mounting portion 18, the elastic locking piece 6 portion, and the fitting projection portion 8 respectively.

In this manner, the side plate 3 on the long side is held in a standing state, and then the side plate 3 on the short side is rotated to stand up. At this time, since the standing state of the side plate 2 on the long side is maintained as described above, even if the standing state of the side plate 2 on the long side is not supported by hand, the side plate 2 does not fall inward, and therefore, Without supporting the side plate 2 on the long side by hand, the side plate 3 on the short side can be held and rotated to stand up. In this case, the side plates 3 on both sides facing each other are respectively held by hand. It is also possible to hold by and rotate at the same time to stand up.

As described above, the side plate 3 on the short side is erected, and the end of the side plate 2 on the long side and the end of the side plate 3 on the short side are detachably locked by the locking means. The end of the side plate 2 on the long side is connected to the end of the side plate 3 on the short side to hold the box-shaped assembled state, and is used as the container 4 in this state. Here, the locking means for locking the side plate 2 on the long side and the side plate 3 on the short side in the upright state will be described with reference to FIGS. 13 to 15.

At both ends of the side plate 2 on the long side, columnar parts 20 slightly bulging toward the short side are provided.
Reference numeral 0 indicates a plurality of upper and lower engaging recesses 21 opening in a direction along the inner surface side of the side plate 2 on the long side, and a connecting groove portion 22. The connecting groove portion 22 includes the side plate 2 on the long side. The connecting engagement portion 23 is provided in the direction orthogonal to the longitudinal direction of (i.e., in the direction parallel to the longitudinal direction of the side plate 3 on the short side). On the other hand, the outer surface portions of both end portions of the side plate 3 on the short side are recessed to form a step portion 24. From the outer surface portion of the upper portion of the step portion 24 to the outside (that is, the outer surface side of the side plate 3). A plurality of upper and lower engaging projections 25 and a connecting projection 26 are provided in a protruding manner, and an upper surface of the connecting projection 26 has a connecting engaged portion 27 parallel to the short side (see the attached drawing). In the embodiment shown in (1), the engaged portion 27 for connection is constituted by the ridge portion).

When the side plate 2 on the long side is erected as described above and the side plate 3 on the short side is rotated and erected, as shown in FIG. Step 24
To prevent the side plate 3 on the short side from falling outward, and prevent the columnar part 20 from hitting the end surface of the side plate 3 on the short side to collapse the side plate 2 on the long side inward.
The plurality of locking projections 25 are fitted into the plurality of locking recesses 21, and the side surface portions 25 a of the locking projections 25 are locked into the locking recesses 21.
The side plate 2 on the long side is prevented from falling outward by hitting the side surface portion 21a of the above, and the connecting projection 26 is connected to the connecting engagement portion 23 in a state fitted in the connecting fitting groove portion 22. The side engaged plate 27 is engaged to prevent the side plate 3 on the short side from falling inward.

On the other hand, when the folding container 4 is folded, the engagement between the coupling engagement portion 23 and the coupling engaged portion 27 is released by applying a force to the side plate 3 on the short side and inclining it inward. Then, the side plate 3 is laid down and overlapped on the upper surface of the bottom plate 1, and then a force is applied to the side plate 2 on the long side so that the locking projection 5 and the elastic locking piece 6 are locked and the fitting projection 8 is formed. 1 is released by disengaging the side plate 2 from the side plate 3 on the short side so that the side plate 2 is laid on the side plate 3 on the short side.
It can be folded compactly as shown in FIGS.

[0017]

As described above, according to the present invention, the locking projection is provided upward on a part of the long side of the upper surface of the bottom plate, and the lower end of the side plate on the long side is provided. An elastic locking piece that elastically rides over the locking projection piece by the rotation of the side plate on the long side and locks on the outer surface of the locking projection piece is provided so as to project downward and the upper surface of the bottom plate A fitting hole is formed in a part of the long side of the long side, and a fitting protrusion that fits into the fitting hole when the side plate of the long side is upright is formed in a part of the lower end of the side plate of the long side. When the folding container is assembled into a box shape, the elastic locking piece and the locking projection piece are locked with the side plate on the long side standing upright, and the fitting projection. Due to the fitting of the part and the fitting hole, the standing state of the side plate on the long side can be maintained and the fall of the side plate can be prevented. As a result, the side plate is supported by hand while the side plate on the long side is standing. Not doing The side plate of the short side and can be operated to erect and rotated, upright operation of the side plate of the short side is what allows easy.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state where a folding container according to an embodiment of the present invention is assembled in a box shape.

FIG. 2 is a front view of the above-mentioned box-shaped assembly.

FIG. 3 is a side view of the above box-like assembled state.

FIG. 4 is a bottom view of the same.

5 is a sectional view taken along line AA of FIG. 2 above.

FIG. 6 is a cross-sectional view of a state in which the side plate on the long side is tilted along the line AA in FIG. 2 above.

7 is a sectional view taken along line BB of FIG. 2 above.

FIG. 8 is a cross-sectional view of a state in which the side plate on the long side is laid down along line BB in FIG. 2 above.

9 is a sectional view taken along line CC of FIG. 2 above.

10 is a cross-sectional view of a state in which a side plate on the long side is laid down along the line CC in FIG. 2 above.

FIG. 11 is a sectional view taken along the line DD of FIG. 3 above.

FIG. 12 is a cross-sectional view of a state in which the side plate on the short side is laid down along the line DD in FIG. 3 above.

FIG. 13 is a cross-sectional view of a state in which the side plate on the long side is erected and the side plate on the short side is erected when the side plate on the long side is erected when assembled in the above box shape.

FIG. 14 is a cross-sectional view of a state where the side plate on the short side is erected in the state of FIG. 13 above.

FIG. 15 (a) is a perspective view showing a state in which the side plate on the long side of the same is erected and the side plate on the short side is being erected while rotating the side plate on the short side, and FIG. 3 is a sectional view taken along line EE of FIG.

FIG. 16 is a front view of the above-mentioned folded state.

FIG. 17 is a plan view of the above-mentioned folded state.

FIG. 18 is a side view of the above-mentioned folded state.

[Explanation of symbols]

 1 Bottom plate 2 Side plate 3 Side plate 4 Folding container 5 Locking projection piece 6 Elastic locking piece 7 Fitting hole 8 Fitting projection part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hidetoshi Yamaguchi, 9-25 Kandacho, Gifu City, Gifu Plastics Industry Co., Ltd. (72) Toshihiro Hira, 9-25, Kandamachi, Gifu City Gifu Plastics Industry Co., Ltd.

Claims (1)

[Claims] 1. A short side including a side plate on a long side rotatably attached to opposite long sides of a rectangular bottom plate and a side plate on a short side opposite to a short side opposite to the short side. In the folding container in which the side plate on the long side is folded down and the side plate on the long side is folded and the side plate on the long side is erected, and then the side plate on the short side is erected to assemble into a box shape, the upper surface of the bottom plate A locking protrusion is provided upward on a part of the long side of the, and the locking protrusion is elastically overcome by partially rotating the side plate on the long side on a part of the lower end of the side plate on the long side. An elastic locking piece that locks to the outer surface of the locking projection is projected downward, and a fitting hole is formed in a part of the upper surface of the bottom plate on the long side, and the side plate on the long side is formed. A foldable container characterized in that a fitting protrusion that fits into a fitting hole in a standing state of a side plate on the long side is provided on a part of the lower end so as to protrude downward. Na.