JP2606136Y2 - Folding container - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foldable container, and more particularly to a foldable container capable of easily bending a side plate and having high strength when assembled.

[0002]

2. Description of the Related Art Conventionally, in order to improve the bendability of a side plate of a folding container, a projection is provided on an end face of a connecting portion of each plate-like portion as disclosed in Japanese Utility Model Publication No. 58-8679. A structure is adopted in which the end face of the connecting portion is made obtuse with respect to the outer surface. Also, in order to increase the resistance to the load from the top of the side plate, when a load is applied to the container as in Japanese Patent Application Laid-Open No. 62-158647, the connecting portion of the side plate is bent slightly outward instead of inside. There is known a device in which the contents are not damaged by keeping the forces balanced in this state.

However, when a projection is provided on the end face on the connecting portion side, stress is concentrated on a portion where the projection is provided and a portion in contact with the projection, which is not preferable in terms of strength. When the end of the connecting portion has an obtuse angle, the end face is used in a state where considerable stress is applied, which is not preferable in terms of strength. On the other hand, when the side plate is slightly bent outward, it is troublesome to bend the side plate inward in the opposite direction when folding.

[0004]

SUMMARY OF THE INVENTION The present invention aims to provide a folding container in which the above-mentioned drawbacks are improved. And a folding container composed of a side slope composed of two plate-like members connected so as to be bent inward at a connecting portion, and a tilting plate rotatably attached to the frame. The folding container is characterized in that the longitudinal direction of each plate-shaped member of the side plate is slightly curved in advance so as to protrude inward in the center of the container.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the drawings.

FIG. 1 is a perspective view of a folding container showing an example of the present invention, and FIG. 2 is a sectional view taken along line AA of FIG.

As shown in FIG. 1, the folding container of the present invention is rotatably mounted on a frame 1, a bottom plate 2, and the frame 1 and the bottom plate 2, respectively, and is bent inward at a connecting portion 5. Plates 4 and 4 composed of two plate-like members 41 and 42 connected as described above, and the frame 1
And pivot plates 3 and 3 rotatably attached to the motor.

Each of the plate members 41, 4 constituting the side plates 4, 4
2 is a curved plate-shaped member 4 which is formed by bending the longitudinal direction in advance so that the center of the container is convex inward.
When the container is assembled, the reference numerals 1 and 42 are curved so as to protrude inward in the container in the longitudinal direction as shown in FIG.

As means for bending the plate-like members 41 and 42 so as to protrude inward in the center of the container, a curved mold is used, a temperature difference is applied to each surface of the mold, or an appropriate known means is adopted. I can do it.

[0010]

As described above, the present invention has the following effects by forming a curved shape so that the longitudinal direction of each plate-like member of the side plate is convex toward the center inside of the container. In other words, when folding, simply removing the uphill and slightly folding the side plate, the plate-like members of the side plate are curved, so that the whole can be easily folded inward as a whole. Even when a force is applied from the upper portion of the side plate in the assembled state, the end surfaces of the side plate can be satisfactorily abutted because the plate members of the side plate are curved. Even if the content presses the inner wall of the side plate in the assembled state, the resistance is increased by the amount of bending, so that the connecting portion does not open outside. Even when assembling from the folded state, the folded and overlapping plate-like members are curved, so that the spring effect facilitates assembling. In addition, the above-mentioned effects provide various effects such as easy folding by a robot.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of the invention.

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

[Explanation of symbols]

 Reference Signs List 1 frame 2 bottom plate 3 tilt plate 4 side plate 41, 42 plate member 5 connecting part

Claims (1)

(57) [Scope of request for utility model registration] 1. A mounted for each pivot relative to the frame and the bottom plate frame and the bottom plate, and consists of two plate-shaped member which is connected to flex break inward at connecting portion side In a folding container composed of a slope and a tilting plate rotatably attached to the frame, the longitudinal direction of each plate-like member of the side plate is slightly curved so as to project inward in the center of the container in advance. A collapsible container characterized by having been made.