JPH072247A - Folding container - Google Patents

Abstract

PURPOSE:To prevent a gate board from being dislocated inward during use by providing a projection on the bottom side of the gate board, a stopper for the projection which stops the gate board from being dislocated inward by being placed so as to be in contact with the inner side of the projection above the bottom board, and a long bearing hole formed either in a frame body placed above or in the gate board. CONSTITUTION:From the lower part of a gate board 5 a bottom part 52 projects horizontally in the form of the letter L. A projection 53 is formed on the bottom side of the bottom part 52 in parallel with the longitudinal side of the bottom part 52 and in solid continuation therefrom. A stopper 33 which projects on the inner side of the projection 53 and touches it is provided in parallel with an erect wall 32 raised from the bottom board 3 and in solid continuation from the bottom board 3. When the collapsible container is put together with the gate board 5 fastened in place, an oblong hole 91 which a bearing 9 provided in an upper frame 2 above the gate board 5 has and a shaft 8 are made to leave therebetween under the shaft 8 a gap L which is approximately equal to the measurement (h) of the projection 53 as compared in terms of height from the lowest point. As a result, the container can be put together ands folded up in a simple manner and the gate board 5 is prevented from being dislocated inward during use.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding container made of synthetic resin used for storing and transporting articles.

[0002]

2. Description of the Related Art As a conventional folding container made of synthetic resin used for transportation of articles, etc.
As described in Japanese Patent Laid-Open Publication No. 2004-242242, a frame and a bottom plate, and an upper plate and a lower plate that are rotatably connected to both side edges of the frame and the bottom plate and are rotatably connected to each other Becomes
A swing plate is rotatably connected to the frame body, and a stopper for locking the lower end portion of the swing plate is provided inside the upper surface of the bottom plate where the lower end portion of the swing plate abuts. It is known that the hinge mechanism provided on the upper and lower side plates connected to the body and the bottom plate has substantially the same dimensional difference between the pins and the pin insertion holes.

[0003]

However, in such a foldable container, when the swing plate is pressed downward by the load from above, the stopper prevents the return of the plate to the inside. However, when trying to move and carry this folding container by lifting the upper frame, the tilt plate is released from the load and becomes free, so there is a possibility that it will float up and come out from the stopper and enter the inside. There was a problem that there was.

The present invention has been made by paying attention to the above problems, and these problems can be solved, folding and assembling can be easily performed, and the swing plate can intrude into the inside during use. To provide a folding container without.

[0005]

In the folding container according to the present invention, an upper frame body, a bottom plate, and rotatably connected to each of the upper frame body and both side edges of the bottom plate and rotatable with respect to each other. The upper frame and the lower plate are connected to each other, and the swing plate is connected to the upper frame body so that the shaft protruding from either one is inserted into the bearing hole bored in the other and pivotally connected. In this folding container, a convex portion is provided on the bottom surface of the tilt plate, and a stopper is provided inside the upper surface of the bottom plate to stop the tilt plate from coming into contact with the convex portion on the bottom surface of the tilt plate. The bearing hole formed in either one of the plates is a long hole extending in the vertical direction.

[0006]

In the folding container of the present invention, the bottom surface of the swing plate is provided with a convex portion, and a stopper is provided inside the top surface of the bottom plate to abut the convex portion on the bottom surface of the swing plate to lock the inflow of the swing plate. Since the bearing hole formed in either the upper frame or the tilt plate is a long hole in the vertical direction, it can be folded and assembled easily, and the tilt plate does not enter the inside during use. Can be prevented.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an example of the folding container of the present invention.

In FIG. 1, 1 is a folding container and 2 is a folding container.
Is a top frame of the folding container 1, and 3 is a bottom plate. The bottom plate 3 has a rising wall 31 and a tilt plate 5 on the outside of the side plate 4.
Standing walls 32 are provided on the outer sides of the above, respectively, and between the upper frame 2 and the bottom plate 3, the side walls are composed of side plates 4 and swing plates 5 facing each other.

Explaining these components in detail, the side plate 4 is composed of an upper plate 41 and a lower plate 42, and an intermediate portion between the upper plate 41 and the lower plate 42 is rotatably connected to the inside. Made with structure. That is, the upper plate 4
A shaft 6 is projectingly provided on the first side, and a plurality of bearings 7 are provided on the lower plate 42 side, respectively. The shaft 6 is inserted into a bearing hole 71 of the bearing 7 so as to rotate inward. Further, shafts 8 are formed on the upper end of the upper plate 41 and the lower end of the lower plate 42, respectively, between the outer frame wall 21 and the inner frame wall 22 of the upper frame 2 so as to be integrally formed with the upper frame 2. In addition, a plurality of bearings 9 are provided on the rising wall 31 of the bottom plate 3, and are similarly rotatably connected to the inside.

On the other hand, on the upper surface of the swing plate 5, the swing plate 5
A plurality of shafts 8 project from a vertical wall 51 integrally formed with the upper frame body 2 and the outer frame wall 21 and the inner frame wall 22 of the upper frame body 2 described above are integrally formed with the upper frame body 2. Bearing holes 91 are bored in the plurality of bearings 9, the shafts 8 are inserted into the bearing holes 91, respectively, and the swing plate 5 is horizontally folded while rotating inward.

In this embodiment, a plurality of bearings 9 are provided between the outer frame wall 21 and the inner frame wall 22 of the upper frame body 2 to form bearing holes 91, and the upper and lower ends of the side plate 4 are formed. A plurality of shafts 8 are provided on each of the upper and lower sides of the upper frame 2, and on the contrary, a plurality of shafts 8 are provided between the outer frame wall 21 and the inner frame wall 22 of the upper frame body 2. 9 bearings each
However, it may be provided in the reverse form of this embodiment.

FIG. 2 is a sectional view of the main part near the swing plate. 3 is a view taken along the line AA of FIG. 2, and FIG.
It is a BB arrow line view of. In FIG. 2, reference numeral 2 is an upper frame body, and the upper frame body 2 is composed of an outer outer wall 21 and an inner top wall 23 on which an inner inner wall 22 is extended. 21 and the inner frame wall 22 are provided with a plurality of bearings 9 integrally formed with the upper frame body 2 at appropriate intervals, and a long hole 91 that is long in the up-down direction is bored at substantially the center of the bearing 9. Has been done.

On the upper surface of the swing plate 5, a vertical wall 51, and a shaft 8 which is horizontally formed from substantially the center of the side surface of the vertical wall 51, are formed integrally with the swing plate 5 so as to project, and the bearing 9 described above is provided.
The tilting plate 5 is suspended in the upper frame 2 by being inserted into the elongated hole 91, and is rotatable inside.

In this embodiment, a long hole 91 is formed in the bearing 9 on the upper frame 2 side in the vertical direction, and the shaft 8 is integrally formed on the vertical wall 51 on the upper surface of the swing plate 5. However, conversely, a vertical wall may be provided on the upper frame body 2 to project the shaft, and the tilt plate 5 may be provided with a bearing hole.

On the other hand, below the swing plate 5, there is formed a bottom portion 52 that horizontally projects in an L-shape.
The convex portion 53 is integrally formed and provided on the bottom surface of 2 in parallel with the long side of the bottom portion 52.

Inside the rising wall 32 of the bottom plate 3, an inwardly protruding stopper 33 that comes into contact with the convex portion 53 of the bottom 52 of the tilt plate 5 is provided in parallel with the rising wall 32 of the bottom plate 3.
And is formed integrally with

The cross-sectional shape of the convex portion 53 on the bottom surface of the bottom plate 52 of the tilt plate 5 in the width direction is set to the bottom plate 3 so that the tilt plate 5 does not easily come off and intrude in the assembled state. The surface adjacent to the stopper 32 provided may be a vertical surface. Further, the surface corresponding to the triangular slope with respect to the vertical surface of the convex portion 53 is tapered toward the bottom surface of the bottom portion 52, so that when the tilting plate 5 is lifted up to stand up, the above-mentioned smoothness can be obtained. The stopper 32 can be overcome and locked.

When the side wall 4 of the folding container 1 is extended vertically and the tilting plate 5 is lifted up to be assembled or folded, the convex portion 53 of the tilting plate 5 is used.
However, the cross-sectional shape of the stopper 32 is preferably a circular arc R having a gentle upper surface so that the stopper 32 can be smoothly overcome.

In order to facilitate the assembling of the swing plate 5 and prevent the swing plate 5 from being securely locked so as not to come off from the stopper 32 provided on the bottom plate 3 in use.
It is preferable that the protrusion height h of the convex portion 53 of the tilt plate 5 is 2 mm or more. In addition, the stopper 3 provided on the bottom plate 3
The height of 2 is equal to the protruding height h of the convex portion 53, or 1
It is preferable that the swing plate 5 is made larger by about several mm so that the swing plate 5 is securely locked.

The size of the lower gap L between the elongated hole 91 of the bearing 9 and the shaft 8 provided in the upper frame 2 above the swing plate 5 is assembled without any undue force, or When folding, the folding plate 5 is locked and the folding container 1
In the assembled state, it is preferable that the protrusion height h of the protrusion 53 be substantially equal to the dimension.

Stoppers 3 provided on these bottom plates 3
2, and the convex portion 53 provided on the bottom surface of the bottom portion 52 of the tilt plate 5 may be provided intermittently instead of being continuously provided over the width of the tilt plate 5.

In the folding container 1 of this embodiment, the side plates 4 facing each other are vertically extended, and the tilt plate 5 is erected vertically on its outer side. As a result, the tilt plate 5 is lifted upward, and the stopper 3 of the bottom plate 3 can be easily
It is assembled by overcoming 2 and descending downward and being locked by the convex portion 53.

In the case of folding in the opposite way, the lower side of the tilt plate 5 is tapped gently to remove the convex portion 53 from the stopper 33, and it is tilted inward to be horizontal first, and the upper frame body 2 is pressed down, so that the side plate 4 is pushed. Is folded into a dogleg shape and folded into a flat state.

Each of the above-mentioned members constituting the folding container is molded by injection molding using a material such as a synthetic resin.
Polyolefin resins such as polyethylene, polypropylene and ABS resin are preferably used.

[0025]

According to the folding container of the present invention,
A convex part is provided on the bottom surface of the tilt plate, and a stopper is provided inside the top surface of the bottom plate to stop the tilt plate from coming into contact with the convex part on the bottom plate, and either the upper frame or the tilt plate Since the bored bearing hole is a long hole extending in the vertical direction, folding and assembling can be easily performed, and the swing plate can be prevented from entering the inside during use.

[0026]

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a folding container according to the present invention.

FIG. 2 is a cross-sectional view of a main part near a swing plate of the folding container according to the present invention.

FIG. 3 is a view on arrow AA of FIG.

FIG. 4 is a view on arrow BB in FIG.

[Explanation of symbols]

 1 Folding container 2 Upper frame 3 Bottom plate 4 Side plate 5 Flapping plate

Claims (1)

[Claims] 1. An upper frame, a bottom plate, and an upper plate and a lower plate that are rotatably connected to each of both side edges of the upper frame and the bottom plate and are rotatably connected to each other. In the foldable container in which the shaft on which the tilt plate is projected from one of the upper frames is inserted into the bearing hole formed in the other and is rotatably connected, the bottom of the tilt plate is projected. Bearings that are provided inside the upper surface of the bottom plate, are provided with stoppers that come into contact with the protrusions on the bottom surface of the tilt plate to lock the intrusion of the tilt plate, and are drilled in either the upper frame or the tilt plate. A foldable container characterized in that the holes are elongated vertically.