JP2005104490A - Folding container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress the inward or outward deformation of the side walls of a folding container assembled into a box shape. <P>SOLUTION: The folding container has one pair of opposite side walls 2 hinged to a bottom 1, and the other pair of opposite side walls 3 hinged to the bottom 1. The container assembled as a box can be folded into a compact shape by folding down the one opposite side walls 2 toward the bottom 1, and then folding down the other opposite side walls 3 toward the bottom 1. The one side walls 2 is provided with lock members H, on each of which a plurality of fitting blocks h2 are formed. In correspondence to the fitting blocks h2, a plurality of fitting recessions 3d, into which the plurality of fitting blocks h2 are fitted, are formed on the other side walls 3. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to a folding container having a side wall hinged to the bottom, and from an assembled state in a box shape, one opposite side wall is brought down so as to overlap the bottom, and then the other side is opposed. The present invention relates to a folding container that can be folded by falling on one side wall that overlaps one of the opposite side walls.

In the folding container described above, from the state assembled in a box shape, the side wall that is tilted first and the side wall that is tilted later are locked by a locking member disposed at the upper end of the side wall, thereby assembling into a box shape. Patent Document 1 discloses a folding container that prevents the above-described side wall that is tilted forward from falling in the bottom direction. Further, Patent Document 2 discloses a folding container in which such a lock member is disposed in the middle of the upper end portion of the side wall.
Japanese Utility Model Publication No. 63-117725 Japanese Patent Publication No. 8-5479

In the folding container in which the lock member as described above is disposed at the upper end of the side wall, since the lock member is not disposed in the central portion of the side wall, There has been a problem that the central portion is deformed in the outward or inward direction of the folding container assembled in a box shape.

In addition, when the lock member is disposed at two locations, the upper end of the side wall and the middle, the unlocking work of the locking member must be performed twice, and therefore the workability of the unlocking work of the locking member is improved. There was a problem of being bad.

In order to achieve the above-mentioned object, the present invention has one opposite side wall hinged to the bottom and another opposite side wall hinged to the bottom and is assembled in a box shape. In a collapsible folding container, firstly, one relative side wall is tilted by tilting one opposite side wall toward the bottom and then tilting the other opposite side wall toward the bottom. A plurality of fitting blocks are formed on the locking member disposed on the side wall, and the plurality of fitting blocks can be fitted to the other opposite side wall corresponding to the plurality of fitting blocks. A plurality of fitting recesses are formed. Second, an operation window hole is formed in the side wall on which the lock member is disposed, and the lock member is formed into a box shape through the operation window hole. Of assembled folding container It is obtained by operable from the side.

A plurality of fitting blocks are formed on the lock member disposed on one opposite side wall, and the plurality of fitting blocks are fitted on the other opposite side wall corresponding to the plurality of fitting blocks. Since a plurality of fitting recesses that can be combined are formed, deformation of the side wall of the folding container assembled in a box shape in the inner direction or the outer direction can be suppressed.

A plurality of fitting blocks are formed on the lock member, and the plurality of fitting blocks are fitted into the fitting recess or discharged from the fitting recess by a single operation of the lock member. The workability of the assembling work or the folding work is improved.

An operation window hole is formed in the side wall where the lock member is disposed, and the lock member can be operated from the inside of the box-shaped folding container through the operation window hole. The workability of the folding work is improved and the position of the lock member can be confirmed through the operation window hole, so that the workability of the folding work of the folding container is further improved.

Examples of the present invention will be described below. However, the present invention is not limited to these examples as long as the gist of the present invention is not exceeded.

Reference numeral 1 denotes a bottom. A long side bank portion 1a is erected on the opposite long side of the bottom portion 1, and a short side bank portion 1b is erected on the opposite short side of the bottom portion 1. It is installed. The height of the short side bank portion 1b is configured to be higher than the height of the long side side bank portion 1a. Reference numeral 2 denotes a long side wall hinged to an opposing long side bank portion 1a of the bottom portion 1 by an appropriate hinge member, and reference numeral 3 denotes an appropriate hinge member to an opposing short side bank portion 1b of the bottom portion 1 It is the short side wall hinge-connected by.

As shown in FIG. 1, in order to fold as shown in FIG. 3 from a state assembled in a box shape, first, a lock member described later is released, and the long side wall 2 is Tilt in the direction of the bottom 1, the long side wall 2 is overlapped with the bottom 1 as shown in FIG. 2. Next, the short side wall 3 is configured to be folded as shown in FIG. 3 by tilting the short side wall 3 in the direction of the bottom 1 and overlapping the long side wall 2 superimposed on the bottom 1. . Further, from the folded state shown in FIG. 3, the short side wall 3 is set up substantially vertically, and then the long side wall 2 is set up substantially vertical, thereby assembling the box shape shown in FIG. Configured to be able to be.

Next, the long side wall 2 will be described with reference to FIGS.

The long side wall 2 has a horizontally long and substantially rectangular plate-like portion 2a, and the plate-like portion 2a extends from the periphery of the plate-like portion 2a substantially perpendicularly to the plate-like portion 2a. It is surrounded by the flange portion 2b.

On the long side wall 2, a vertically long locking frame 4 is formed by extending the plate-like portion 2 a outward beyond the opposing vertical flange 2 b 1 constituting the circumferential flange portion 2 b. An appropriate number of fitting protrusions 4a that are substantially parallel to the vertical portion 2b1 of the circumferential flange portion 2b are formed on the vertical end of the locking frame 4 in the vertical direction. In this embodiment, an example in which four fitting protrusions 4a are formed is shown.

In the vicinity of the upper end of the vertical flange 2b1 of the circumferential flange portion 2b, a vertically long rectangular through hole 5a is formed, and in the middle of the vertical flange 2b1 of the circumferential flange portion 2b, a vertically long rectangle is formed. A through-hole 5b is formed. In the present embodiment, there is a through-hole 5a formed on the upper end portion of the locking frame 4 between the uppermost fitting projection piece 4a and the second fitting projection piece 4a from the top. The lower through hole 5b is formed between the lowermost fitting projection 4a and the second fitting projection 4a from the bottom, and is located above. An example is shown in which two fitting protrusions 4a are positioned between the through hole 5a and the lower through hole 5b.

Of the two through holes 5a and 5b formed in the vertical flange or the like 2b1 forming the circumferential flange portion 2b of the long side wall 2, the circumferential flange portion 2b is located above the through hole 5a located above. The upper horizontal rib 6 is formed in parallel with the upper end flange 2b2, and the lower horizontal rib 7 is formed in the vicinity of the lower portion of the lower through hole 5a in parallel with the upper end flange 2b2. Has been. The plate-like portion 2a of the long side wall 2 is formed with an appropriate number of vertical ribs 8 extending from the upper end flange 2b2 to the lower end flange 2b3 of the circumferential flange portion 2b at a predetermined interval. In addition, a horizontal rib and a vertical rib can be suitably formed in the plate-shaped part 2a of the long side wall 2 as needed.

As described above, the circumferential flange portion 2b, the upper horizontal rib 6, the lower horizontal rib 7, the vertical rib 8 and the like are formed substantially perpendicular to the plate portion 2a on the plate-like portion 2a of the long side wall 2. The surface on which the circumferential flange portion 2b, the upper horizontal rib 6, the lower horizontal rib 7, the vertical rib 8, etc. are formed is an outer wall surface located outside when the folding container is assembled into a box shape. When the 2a1 is formed and the folding container is assembled into a box shape, the inner wall surface 2a2 positioned inside is formed on a flat surface on which such a circumferential flange portion 2b and ribs are not formed.

The plate-like portion 2a of the long side wall 2 includes a vertical flange 2b1, a top horizontal rib 6, a lower horizontal rib 7 and a vertical rib closest to the vertical flange 2b1 (hereinafter referred to as a vertical flange). A lock member disposition area A is formed, which is referred to as a side vertical rib and is denoted by reference numeral 8a.

An elastic piece receiving rib 9 that connects the upper horizontal rib 6 and the lower horizontal rib 7 is formed in the lock member disposition area A in the vicinity of the vertical flange side vertical rib 8a. The elastic piece storage rib 9 is formed with two substantially U-shaped concave portions 9a by causing the elastic piece storage rib 9 to bulge in the direction of the vertical flange side vertical rib 8a. In the present embodiment, the substantially U-shaped concave portion 9a includes a vertical portion 9a1 positioned at the center of the concave portion 9a, an upper inclined portion 9a2 extending upward from the upper end of the vertical portion 9a1, and the vertical portion 9a1. The example formed from the lower inclination part 9a3 extended below from a lower end is shown. Reference numeral 10 denotes a plurality of horizontal connecting ribs for reinforcing the elastic piece storage rib 9 that connect the elastic piece storage rib 9 and the vertical flange side vertical rib 8a at an appropriate location.

A locking block 6a is suspended from a substantially central portion of the lower surface of the upper horizontal rib 6 located in the lock member arrangement area A, and a plate-like portion 2a that forms the long side wall 2 with the locking block 6a. A predetermined gap is formed between the outer wall surface 2a1 and the outer wall surface 2a1. Similarly, a locking block 7a is erected at a substantially central portion of the upper surface of the lower horizontal rib 7 located in the lock member disposition area A, and is a plate shape that forms the locking block 7a and the long side wall 2. A predetermined gap is formed between the outer wall surface 2a1 of the portion 2a.

H is a lock member disposed in the lock member disposition area A described above. The lock member H has a box-shaped base part h1, and the base part h1 includes an opposing vertical side plate h1a, an upper plate h1b connecting the upper ends of the opposing vertical side plates h1a, and a lower end of the opposing vertical side plate h1a. A lower plate h1c to be connected, and a top plate h1d that closes one opening of a space formed by the opposed vertical side plate h1a, upper plate h1b, and lower plate h1c. The plate h1d extends beyond one vertical side plate h1a, and a flange portion h1e is formed by this extending portion.

On the other vertical side plate h1a located on the opposite side to the flange portion h1e, a pair of fitting blocks h2 are formed at a predetermined interval and perpendicular to the vertical side plate h1a.

Further, an elastic piece mounting block h3a perpendicular to the vertical side plate h1a is attached to one vertical side plate h1a located on the flange h1e side. An upper elastic piece h3b inclined upward in the direction of the vertical side plate h1a is attached to the tip of the upper surface of the elastic piece mounting block h3a, and also on the tip of the lower surface of the elastic piece mounting block h3a. A lower elastic piece h3c inclined downward in the direction of the vertical side plate h1a is attached, and an elastic member h3 having an arrow shape is formed by the elastic piece mounting block h3a, the upper elastic piece h3b, and the lower elastic piece h3c. ing. The elastic member h3 having such a configuration is disposed in a pair at a predetermined interval on one vertical side plate h1a located on the flange h1e side, and is disposed below the flange h1e. ing.

An upper guide plate h4 perpendicular to the upper plate h1b is provided upright at the front end of the upper plate h1b forming the base h1 of the lock member H in the longitudinal direction. Similarly, a lower guide plate h5 perpendicular to the lower plate h1c is also suspended from the front end of a substantially central portion of the lower plate h1c that forms the base h1 of the lock member H.

A predetermined region of the top plate h1d that forms the base h1 of the lock member H is recessed toward the inner side of the base h1 formed in a box shape, whereby an operation recess h6 into which a hand or a finger can be inserted is provided. Is formed.

Next, attachment to the lock member arrangement | positioning area | region A formed in the long side wall 2 of the lock member H which has the structure mentioned above is demonstrated.

The top plate h1d of the lock member H is arranged so that it is located outside (so that the operation recess h6 formed in the top plate h1d of the lock member H is located outside), and a pair of fittings of the lock member H is provided. The combined block h2 is fitted into a pair of through holes 5a and 5b formed in the vertical flange 2b1 that forms the circumferential flange portion 2b of the long side wall 2. Further, the pair of elastic members h3 attached to the lock member H is replaced with a pair of upper elastic pieces h3b forming the elastic member h3 formed on the elastic piece storage ribs 9 located in the lock member disposition area A. The lower elastic piece h3c forming the elastic member h3 is in contact with the upper inclined part 9a2 forming the concave part 9a, and the pair of concave parts 9a formed on the elastic piece storage rib 9 located in the lock member disposition area A It inserts in a pair of recessed part 9a formed in the elastic piece storage rib 9 so that it may contact | abut to the lower inclination part 9a3 to form. Further, an upper guide plate h4 erected on the upper plate h1b forming the base portion h1 of the lock member H is provided with a locking block 6a suspended from the lower surface of the upper horizontal rib 6 located in the lock member disposition area A. The lower guide plate h5 suspended from the lower plate h1c that forms the base h1 of the lock member H is inserted into the gap formed between the plate-like portion 2a and the outer wall surface 2a1, and the lock member arrangement is similarly provided. It is inserted into a gap formed between the locking block 7a erected on the upper surface of the lower horizontal rib 7 located in the installation area A and the outer wall surface 2a1 of the plate-like portion 2a.

As described above, the pair of lock members H are attached to the two lock member disposition areas A formed on both sides of the long side wall 2. Thus, when the lock member H is disposed in the lock member disposition area A formed on the long side wall 2, the upper elastic piece h3b and the lower elastic piece of the elastic member h3 forming the lock member H are provided. h3c corresponds to the upper inclined portion 9a2 and the lower inclined portion 9a3 that form the recess 9a of the elastic piece receiving rib 9 located in the lock member disposition region A formed in the long side wall 2 as described above. In addition, the tip of the upper elastic piece h3b and the tip of the lower elastic piece h3c are elastically deformed in a direction approaching each other. Accordingly, the urging force for returning the elastically deformed upper elastic piece h3b and the lower elastic piece h3, in other words, the urging force for separating the tip of the upper elastic piece h3b from the tip of the lower elastic piece h3c. As a result, the lock member H disposed in the lock member disposition region A moves in the direction of the vertical flange 2b1 of the circumferential flange portion 2b forming the lock member disposition region A, as shown in FIG. Further, a pair of fitting blocks h2 of the lock member H of the lock member H fitted into a pair of through holes 5a and 5b drilled in the vertical flange 2b1 forming the circumferential flange portion 2b of the long side wall 2. The leading end h <b> 2 a protrudes to the leading end 4 b of the locking frame 4. In this state, of the opposing vertical side plates h1a forming the base portion h1 of the lock member H, one vertical side plate h1a located on the opposite side of the flange portion h1e forms the circumferential flange portion 2b of the long side wall 2. The other vertical side plate h1a which is configured to be in contact with or close to the vertical flange 2b1 and which forms the base portion h1 of the lock member H is located on the flange h1e side. A predetermined gap is formed between the side plate h1a and the vertical flange side vertical rib 8a that forms the lock member disposition region A.

Further, an operation window hole 11 into which a hand or a finger can be inserted is formed in the plate-like portion 2 a located in the lock member disposition region A formed in the long side wall 2. In the operation window hole 11, a side wall h6a that forms an operation recess h6 formed in the lock member disposition area A is positioned.

Next, the short side wall 3 will be described mainly with reference to FIGS. 2 and 8.

The short side wall 3 has a horizontally long and substantially rectangular plate-like portion 3a, and a vertically long locking frame 3b is formed substantially perpendicular to the plate-like portion 3a at both ends of the plate-like portion 2a. ing. An appropriate number of fitting recesses or fitting holes (hereinafter referred to as fitting holes) 3b1 are formed in the locking frame 3b in the vertical direction. The same number of the fitting holes 3b1 as the fitting protrusions 4a formed in the locking frame 4 of the long side wall 2 are formed, and when the folding container is assembled into a box shape, The locking frame 3b and the locking frame 4 of the long side wall 2 are opposed to each other, and the engaging hole 3b1 formed in the locking frame 3b of the short side wall 3 is formed in the locking frame 4 of the long side wall 2. The fitting protrusion 4a is configured to be fitted.

Further, on the inner surface of the plate-like portion 3a located near the locking frame 3b (the surface located on the inner side when the folding container is assembled into a box shape), a predetermined interval is provided substantially perpendicular to the inner surface, A pair of projecting pieces 3c1 are provided in a projecting manner, and the tips of the projecting pieces 3c1 are connected by vertical pieces 3c2 substantially parallel to the locking frame 3b. Thus, the substantially U-shaped bank portion 3c is formed by the pair of projecting pieces 3c1 and the vertical piece 3c2. Then, adjacent to the locking frame 3b, the fitting recess 3d surrounded by the substantially U-shaped bank portion 3c and the locking frame 3b is located near the center and the upper end of the plate-like portion 3a of the short side wall 3. It is formed near the part.

An outer peripheral flange 3e, an appropriate number of horizontal ribs 3f and vertical ribs 3g are appropriately provided on the outer wall surface of the plate-like portion 3a of the short side wall 3 (the surface located outside when the folding container is assembled into a box shape). Is formed.

Next, the operation and function of the lock member H etc. in the folding container assembled in a box shape will be described.

In a state where the folding container is assembled in a box shape, the locking frame 3b of the short side wall 3 and the locking frame 4 of the long side wall 2 face each other, and the fitting formed in the locking frame 3b of the short side wall 3 A fitting protrusion 4a formed on the locking frame 4 of the long side wall 2 is fitted into the joint hole 3b1, and further, the upper elastic piece h3b and the lower elastic piece h3 that are elastically deformed are returned to their original positions. The pair of fitting blocks h2 of the locking member H are engaged with the locking frame of the short side wall 3 by the biasing force to be applied, in other words, the biasing force that the tip of the upper elastic piece h3b and the tip of the lower elastic piece h3c are separated. It is fitted to a pair of fitting recesses 3d surrounded by a substantially U-shaped bank portion 3c formed in the vicinity of 3b and a locking frame 3b.

As described above, the pair of fitting recesses 3d formed on the short side wall 3 and the pair of fitting blocks h2 of the lock member H disposed on the long side wall 2 in a state where the folding container is assembled in a box shape, One of the pair of fitting positions is located near the upper end of the long side wall 2 and the short side wall 3, and the other fitting position is near the center of the long side wall 2 and the short side wall 3. Therefore, as compared with the conventional folding container in which the fitting position is at the upper end of the side wall, deformation in the inner side or the outer side in the vicinity of the central part of the long side wall 2 and the short side wall 3 can be suppressed.

In order to fold the folding container assembled in the box shape shown in FIG. 1 as shown in FIG. 3, a lock disposed on the long side wall 2 of the folding container assembled in the box shape is shown. As shown in FIG. 7, the finger is put into the operation recess h <b> 6 formed in the base h <b> 1 of the member H, and the lock member H is moved toward the center of the long side wall 2. The front ends h2a of the pair of fitting blocks h2 are retracted from the front ends 4b of the locking frames 4 and discharged from the pair of fitting recesses 3d formed in the locking frames 3b of the short side walls 3. Thereafter, the long side wall 2 is tilted in the direction of the bottom 1 and overlapped with the bottom 1. Thereafter, the short side wall 3 is tilted in the direction of the bottom 1 and stacked on the long side wall 2 stacked on the bottom 1, so that the folding container assembled in a box shape as shown in FIG. Fold it up.

In addition, as described above, the operation window hole 11 into which a hand or a finger can be inserted is formed in the plate-like portion 2a located in the lock member disposition region A formed in the long side wall 2. Then, put the hand inside the folding container assembled in a box shape, insert the finger into the operation window hole 11, hit the finger against the side wall h6a forming the operation recess h6, the lock member H, The pair of fitting blocks h <b> 2 of the lock member H can also be discharged from the pair of fitting recesses 3 d formed on the short side wall 3 by moving in the center direction of the long side wall 2. Thus, since the lock member H can be operated from the inside of the folding container assembled in a box shape, the operability of the locking member H is improved, and consequently the workability of the folding container is improved. To do.

When the folding container assembled in a box shape is folded, the operator stands at a substantially central portion of one long side wall 2 of the opposing long side wall 2 and is disposed on the opposing long side wall 2. H is operated, but if the folded container assembled in a box shape is not large, a finger is inserted from the outside into the operation recess h6 of the lock member H disposed on the long side wall 2 located in front. Then, the lock member H is moved, the long side wall 2 is tilted toward the bottom 1, and then a finger is inserted from the outside into the operation recess h 6 of the lock member H disposed on the far side long side wall 2. By moving the member H, the long side wall 2 can be tilted toward the bottom 1. However, when the folding container assembled in a box shape is large, a finger is inserted from the outside into the operation recess h6 of the lock member H disposed on the long side wall 2 located on the front side, and the lock member H is moved. The long side wall 2 can be tilted in the direction of the bottom 1, but the hand is extended and a finger is inserted from the outside into the operation recess h6 of the lock member H disposed on the long side wall 2 which is farther away. There is a case where it is difficult to move the lock member H, and the position of the operation recess h6 of the lock member H disposed on the far side long side wall 2 cannot be confirmed. Although the workability of the container folding work is deteriorated, in the present embodiment, the lock member H disposed on the long side wall 2 which is far away is positioned in the lock member disposition area A formed on the long side wall 2. Formed on the plate-like part 2a The operation can be performed from the inside of the folding container assembled in a box shape through the operation window hole 11 and the position of the lock member H can be confirmed through the operation window hole 11, so that the workability of the folding operation of the folding container is improved. Will improve.

Next, an assembling operation for assembling the folded container shown in FIG. 3 into a box shape as shown in FIG. 1 will be described.

First, as shown in FIG. 2, the short side wall 3 that is tilted in a substantially horizontal state is erected substantially vertically. Next, the long side wall 2 that is tilted so as to overlap the bottom portion 1 is rotated in the vertical direction. However, when the long side wall 2 approaches substantially vertical, or is arranged on the long side wall 2 in advance. As shown in FIG. 7, a finger is put in the operation recess h <b> 6 formed in the base h <b> 1 of the lock member H and the lock member H is moved toward the center of the long side wall 2. In addition, the tips h2a of the pair of fitting blocks h2 of the lock member H are retracted from the tips 4b of the locking frame 4. Next, the locking frame 3b of the short side wall 3 and the locking frame 4 of the long side wall 2 are made to face each other, and the long side wall 2 is locked to the fitting hole 3b1 formed in the locking frame 3b of the short side wall 3. When the fitting protrusion 4a formed on the frame 4 is fitted and then the finger is released from the operation recess h6 formed on the base h1 of the lock member H, as shown in FIG. The tip h2a of the fitting block h2 of the lock member H of the member H protrudes to the tip 4b of the locking frame 4 and is fitted into the fitting recess 3d formed in the locking frame 3b of the short side wall 3. In this way, the folded container in the folded state is assembled into a box shape.

In this embodiment, the surface of the locking member H located outside the fitting block h2, in other words, the tip of the surface located on the outer wall surface 2a1 side of the plate-like portion 2a of the long side wall 2, An inclined guide surface h2b is formed. By forming such an inclined guide surface h2b at the tip of the fitting block h2, when the long side wall 2 is erected after the short side wall 3 is erected in the assembly operation of the folding container, It is not necessary to operate the member H by hand to retract the pair of fitting blocks h2 of the lock member H as shown in FIG. As shown in FIG. 6, the long side wall 2 is moved in the vertical direction in a state in which the distal ends h2a of the pair of fitting blocks h2 of the locking member H of the locking member H protrude to the distal end 4b of the locking frame 4. , The fitting block h2 is inserted into the fitting hole 3b1 formed in the short side wall 3 before and after the fitting protrusion 4a formed in the locking frame 4 of the long side wall 2 is fitted. Since it is in contact with the substantially U-shaped bank portion 3c formed on the short side wall 3, the bank portion 3c is configured to contact the inclined guide surface h2b of the fitting block h2, The lock member H moves toward the center of the long side wall 2 against the urging force of the upper elastic piece h3b and the lower elastic piece h3 forming the elastic member h3. The formed bank portion 3c can be crossed, and the fitting block h2 is connected to the bank portion 3c. After exceeding, the lock member H moves in the direction of the vertical flange 2b1 forming the circumferential flange portion 2b of the long side wall 2 by the urging force of the upper elastic piece h3b and the lower elastic piece h3 forming the elastic member h3, The fitting block h2 is fitted into the fitting recess 3d formed in the short side wall 3.

As described above, by forming the inclined guide surface h2b at the front end portion of the surface located outside the fitting block h2 of the lock member H, the lock member H is manually operated during the assembly operation of the folding container. The fitting protrusion 4a formed on the locking frame 4 of the long side wall 2 is moved to the fitting hole 3b1 formed on the short side wall 3 by simply rotating the long side wall 2 in the vertical direction without doing so. Since the fitting block h2 of the lock member H can be fitted into the fitting recess 3d formed in the short side wall 3, the workability of the assembly operation of the folding container is improved.

In the embodiment described above, two fitting blocks h2 are formed on the lock member H disposed on the long side wall 2, and two short blocks 3 are formed on the short side wall 3 corresponding to the two fitting blocks h2. Although an example in which a plurality of fitting recesses 3d are formed is shown, the lock member H disposed on the long side wall 2 has three or more fitting blocks h2 and three or more fitting blocks. Corresponding to h2, three or more fitting recesses 3d can be formed in the short side wall 3.

The lower part of the long side wall 2 constituting the folding container assembled in a box shape is connected to the bottom part 1 via a hinge member, and the lower part of the short side wall 3 is also connected to the bottom part 1 similarly to the hinge member. Since the lower side of the long side wall 2 and the lower side of the short side wall 3 are less likely to be deformed inward or outward, a plurality of the locking members H disposed on the long side wall 2 are connected. The plurality of fitting positions by the fitting block h2 and the plurality of fitting recesses 3d formed on the short side wall 3 are at least easily deformed in the inner side or the outer side by the long side wall 2 and the short side wall 3. The long side wall 2 and the short side wall 3 are arranged in the vicinity of the upper end portion and the central portion. By comprising in this way, a deformation | transformation to the inner side direction or the outer side direction of the long side wall 2 and the short side wall 3 can be suppressed effectively.

Of course, the fitting position by the fitting block h2 of the locking member H and the fitting recess 3d formed in the short side wall 3 can also be arranged below the long side wall 2 and the lower side wall 3. In this way, by arranging the above-mentioned fitting positions at the lower part of the long side wall 2 and the lower part of the short side wall 3, the hinge connecting part between the bottom part 1 and the long side wall 2 and the hinge connection between the bottom part 1 and the short side wall 3 are provided. Damage to the part can be prevented.

In the above-described embodiment, the locking member H is disposed on the long side wall 2, and the fitting recess 3 d in which the plurality of fitting blocks h 2 formed on the locking member H can be fitted on the short side wall 3. Although the formed example is shown, a locking member H is disposed on the short side wall 3 and a fitting recess in which a plurality of fitting blocks h2 formed on the locking member H can be fitted on the long side wall 2 is shown. It can also be formed.

FIG. 1 is a perspective view of the folding container of the present invention in a state of being assembled into a box shape. FIG. 2 is a perspective view of the folding container of the present invention during assembly or folding. FIG. 3 is a perspective view of the folding container of the present invention in a folded state. FIG. 4 is a perspective view of the lock member and the long side wall constituting the folding container of the present invention. FIG. 5 is a perspective view of a lock member constituting the folding container of the present invention. FIG. 6 is a partially enlarged perspective view of the folding container of the present invention in a state where the lock member from which the top plate is omitted is disposed on the long side wall. FIG. 7 is a partially enlarged perspective view of the folding container of the present invention in a state where the locking member from which the top plate is omitted is disposed on the long side wall. FIG. 8 is a partially enlarged perspective view of a short side wall constituting the folding container of the present invention.

Explanation of symbols

A ... Lock member installation area H ... Lock member h2 ...・ ・ ・ ・ Fitting block 1 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Bottom 2 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Long side wall 3 ・ ・ ・ ・ ・ ・・ ・ ・ ・ ・ ・ ・ ・ Short side wall 3b ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Locking frame 4 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Locking frame

Claims (2)

Having one opposing side wall hinged to the bottom and another opposite side wall hinged to the bottom, from the state assembled in a box shape, one opposing side wall to the bottom By tilting in the direction and then tilting the other opposite side wall in the direction toward the bottom, in the foldable folding container, a plurality of fitting blocks are formed on the lock member disposed on the one opposite side wall And a plurality of fitting recesses into which the plurality of fitting blocks can be fitted on the other opposing side wall corresponding to the plurality of fitting blocks. An operation window hole is formed in the side wall on which the lock member is disposed, and the lock member can be operated from the inside of the folding container assembled in a box shape through the operation window hole. The folding container according to claim 1.

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