JPH0811878A - Foldable tote-box - Google Patents

Abstract

PURPOSE:To provide a foldable tote-box which can be folded and set up only in one process. CONSTITUTION:A foldable tote-box is comprised of a bottom plate 1, a first side plate 2 and second side plate 3, and a third foldable side plate 10 and fourth foldable side plate 11 both of which are formed by connecting strips of side boards. The bottom plate 1 and the first side plate 2 and second side plate 3 are joined together by means of hinges 4 and 5 made of an elastic material. The third side plate 10 and fourth side plate 11 are drawn under the bottom plate, or pulled out, by being pushed down by means of rollers 6-9 pivotally attached to the first side plate 2 and second side plate 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foldable box containing a plate material.

[0002]

2. Description of the Related Art Conventionally, various foldable box boxes have been proposed for the purpose of saving storage space when not in use and improving transport efficiency. For example, Japanese Patent Laid-Open No. 6-2444
No. 0 is known. In the publication, a foldable box having an upper and lower reinforcing frame, a bottom plate to which the lower reinforcing frame is fixed, and four side plates standing upright on the four circumferences of the bottom plate, the foldable box having an open upper end, The pair of first and second side plates facing each other of the side plates have upper ends fixed to the upper reinforcing frame,
The third third and fourth side plates, which have hinges provided at intermediate positions in the height direction and in the vicinity of the joint between the upper reinforcing frame and the bottom plate, respectively, are provided near the joint with the bottom plate. It has a hinge part provided and a spring member for urging at least one of the third and fourth side plates in a standing direction, and the reinforcing frames are fitted to each other in a folded state. An inner plate having matching projections and engaging portions and urged in the upright direction is provided inside the first and second side plates.

[0004]

However, in this conventional foldable box, the first and second side plates are supported from the inside when the third and fourth side plates are raised during assembly. 4 The side plate is not self-supporting and does not stand up unless it is assisted by hand. Also, when folding, if the third and fourth side plates are folded onto the bottom plate, the third and fourth side plates will be held down by the first and second side plates, but it will take many steps and the box itself will stand on its own. There is a problem that it can not be assembled. The present invention has been made to solve such problems, and the folding and assembling of the box is
It is to provide a foldable box that can be instantly traveled.

[0005]

In order to achieve this object, the present invention provides a foldable third and fourth side plate in which a bottom plate, first and second side plates, and strip-shaped side pieces are connected. In a foldable box, comprising the bottom plate,
There is a hinge made of an elastic material that joins the first and second side plates, the lowest ends of the third and fourth side plates have coil springs stretched, and the third and fourth side plates are It is characterized in that it has a guide that is movable in the vertical direction by a roller attached to the upper ends of the first and second side plates. Further, it is characterized in that it has a stopper for preventing the first and second side plates from jumping up.

[0006]

In the foldable box according to the present invention, when the restraint of the first and second side plates is released by the elastic piece of the stopper during assembly, the first and second side plates stand up by the restoring force of the hinge made of an elastic material. Then, the roller provided on the side plate moves the upper end of the strip-shaped side piece to which the guides of the third and fourth side plates are connected to overcome the tension of the coil spring stretched, and moves upward. The third and fourth side plates are pulled out and instantly assembled in a box shape having an upper end opening. When folding, the first and second side plates are folded inward to cause the rollers to push down the third and fourth side plates downward, and the coil springs stretched to store and fold them on the back side of the bottom plate. Further, by providing the stopper 20, the folded state is maintained.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an assembled state. The bottom plate 1 and the first and second side plates 2 and 3 are joined by elastic members such as spring steel and hinges 4 and 5 made of elastic resin. Rollers 6 to 9 are axially mounted on both sides of the upper ends of the first and second side plates 2 and 3. Third and fourth side plates 10 and 11 are provided so as to engage with the rollers 6 to 9, and the third and fourth side plates 10 and 11 are provided.
Guides 12 and 13 are provided at the upper ends of the side plates, and grooves 14 and 15 are formed in which the rollers 6 to 9 move in the horizontal direction. A plurality of strip-shaped side pieces 1 that engage with the lower ends of the guides 12 and 13
6, 17 are connected. Further, recesses 25 and 26 are formed in the first and second side plates 2 and 3 by a stopper 20 which will be described later so as to prevent them from jumping up. FIG. 2 shows FIG.
The AA sectional view taken on the line in FIG. The strip-shaped side pieces 16a to 16k and 17a to 17k are connected to the guides 12 and 13, and are inserted between the upper plate 18 and the lower plate 19 of the bottom plate 1. The side pieces 16 and 17 are stretched by two coil springs 27a and 27b. Further, the guides 12, 13 have grooves 14, 1
5 and grips 28 and 29 are formed.

The upper plate 18 and the lower plate 19 penetrate through the center of the first plate to form a first plate.
And, a stopper 20 for folding and locking the second side plates 2 and 3 inward is loosely fitted. On the upper part of the shaft 21 of the stopper 20, a cup-shaped elastic piece 22 divided into four is formed. A knob 23 is formed at the lower end and is located below the protruding portion 24 of the lower plate 19. The protrusion 24 is divided into four. FIG. 3 shows a sectional view taken along the line BB of FIG.
The upper plate 18 and the lower plate 19 of the bottom plate 1 are integrally formed by a bridge 30 with a constant gap. Legs 31, 32
Are provided so as to project downward from the lower plate 19. FIG.
[Fig. 4] is a top view showing a state when folded. The diameter of the hole formed by the arcuate recesses 25 and 26 provided in the first and second side plates 2 and 3 shown in FIG. 6 described later is smaller than the outer diameter of the cup-shaped elastic piece 22 of the stopper 20.
It is suppressed to 0 and does not bounce up. FIG. 5 shows a sectional view taken along the line CC of FIG. Under the cup-shaped elastic piece 22 of the stopper 20, the first and second side plates 2 and 3 are inserted and locked. FIG. 6 is a sectional view taken along the line DD of FIG. Under the elastic piece 22 of the stopper 20, the first and second
The side plates 2 and 3 are inserted and locked. FIG. 7 shows a partially enlarged sectional view of FIG.

FIG. 8 is a partially enlarged sectional view of FIG. The side pieces 17a to 17k are connected by conical projections 33a to 33j provided on the side pieces 17a to 17k. Protrusions 33c-3
Illustration of 3j is omitted. The roller 9 is pivotally mounted on a shaft 34 supported by the second side plate 2. The ring 36 prevents the roller 9 from coming off. Next, the operation will be described. When folding, the knob 23 of the stopper 20 shown in FIG.
2 is pushed up manually or mechanically to forcibly push it into the protrusion 24 of the lower plate 19, so that the knob 23 enters the protrusion 24 and the elastic piece 22 moves upward from the position of FIG. Then, by folding the first and second side plates 2 and 3 inward, the rollers 6 to 9 pivotally attached to the first and second side plates move inward in an arc shape, and the guides 12 and 13 are pushed downward. , The third and fourth side plates 10 and 11 are moved to the upper plate 1 of the bottom plate 1 by the tension of the coil springs 27a and 27b.
8, the first and the second while being drawn between the lower plate 19
The side plates 2 and 3 are located below the elastic piece 22 of the stopper 20. Then, by pulling the knob 23 downward, the protrusion 24
Since the outside diameter of the knob 23 is larger than the inside diameter of the protrusion 24, the knob 23 does not return to its original position.

Therefore, the diameter of the hole formed by the recesses 25 and 26 of the first and second side plates 2 and 3 depends on the elastic piece 2 of the stopper 20.
Since it is smaller than the outer diameter of 2, the first and second side plates 2, 3
Does not bounce and can be folded in one stroke. Further, when assembling, contrary to the above, by pushing up the knob 23 of the stopper 20, the knob 21 is pushed into the protrusion 24 and the elastic piece 22 of the stopper 20 moves upward,
By opening the first and second side plates in an arc shape, the inner diameter formed by the recesses 25 and 26 of the first and second side plates becomes larger than the outer diameter of the elastic piece 22, and the first and second side plates are hinged. Rollers 6 to 9 open with the restoring force of 4, 5
The third and fourth side plates 10, 11 follow the hinges 4,
The restoring force of 5 overcomes the tension of the coil spring 27, is pulled up, and is instantly assembled. It should be noted that this embodiment can be realized without the stopper 20. When the first and second side plates 2 and 3 are folded inward, if the second box is placed on it, the weight of the box keeps the box closed.

[0011]

The present invention has the following effects. When folding, the first and second side plates are folded inward to push down the guides by the rollers pivotally attached to the first and second side plates. It is drawn in between the upper and lower plates that make up and is folded in one stroke. When assembling, push the knob of the stopper upward to
Also, since the elastic piece of the stopper releases the restraint of the second side plate and the restoring force of the hinge allows the third and fourth side plates to be pulled up and assembled in an instant, the boxing is easy and the productivity is improved when used in a transporting device or the like. Further, when the stopper is eliminated, the first and second side plates are folded inward, and the second box is placed on the inner side plate, so that the second box is not assembled due to its weight, and the box is moved by the carrier device. At this time, since only the uppermost box is assembled, no assembly means is required and the productivity is improved.

[0012]

[Brief description of drawings]

FIG. 1 is a perspective view of an assembling box that is an embodiment of the present invention.

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

3 is a cross-sectional view taken along the line BB of FIG.

FIG. 4 is a plan view showing a folded state of the box according to the embodiment of the present invention.

5 is a cross-sectional view taken along the line CC of FIG.

6 is a cross-sectional view taken along the line DD of FIG. 4;

7 is a partially enlarged cross-sectional view of FIG.

FIG. 8 is a partially enlarged sectional view of FIG.

[Explanation of symbols]

 1-bottom plate 2-first side plate 3-second side plate 4,5-hinge 6-9-roller 10-third side plate 11-fourth side plate 20-stopper 27-coil spring

Claims (2)

[Claims] 1. A foldable box comprising a bottom plate, first and second side plates, and foldable third and fourth side plates in which a plurality of strip-shaped side pieces are connected to each other. A hinge made of an elastic material that joins the first and second side plates is provided, the lowermost ends of the third and fourth side plates have a coil spring stretched, and the third and fourth side plates are A foldable box that has a guide that can be moved in the vertical direction by a roller attached to the upper ends of the first and second side plates. 2. The first and second parts according to claim 1.
A foldable box that has a stopper that prevents the side plate from jumping up.