JP4625736B2 - Folding container - Google Patents

Description

  The present invention includes a bottom portion having a substantially square shape in plan view and four side walls standing upright so as to surround the bottom portion, and the four side walls are configured to be vertically splittable, and the divided side walls are This relates to a folding container that can be accommodated so that a part of the container overlaps the bottom.

  Conventionally, Patent Document 1 discloses, as an example, a folding container in which a door is disposed on a predetermined side wall and an article is taken out from the door or the article is stored from the door. .

JP 2004-168397 A

  In the conventional folding container described above, since the door portion is small, there is a problem that workability when taking out the articles stored in the folding container from the door portion is poor, and the folding container assembled in a box shape. Since it is not possible to open almost the entire predetermined side wall of the machine, the hand of an automatic machine such as a robot cannot be inserted into the folding container from the side and the article cannot be taken out by the automatic machine. there were.

  Further, in a conventional folding container configured to arrange a door on a predetermined side wall and take out an article from the door, the number of articles is reduced, and when taking out an article located near the bottom, the door There is a problem that the horizontal part of the side wall to which the part is attached gets in the way, and the workability of taking out the article from the folding container is deteriorated.

  Furthermore, it is possible to take out the article by tilting the predetermined side wall of the folding container assembled in a box shape to the outside (in the direction opposite to the bottom part). The side wall that has been struck by the door is in the way, and the worker cannot access the folding container, and there is a problem that workability of taking out the article from the folding container is poor, and the predetermined side wall of the folding container is outside. There is a problem that the stored article spills out when it is knocked down.

  An object of the present invention is to solve the problems of the above-described conventional folding container.

In order to achieve the above-described object, the bottom portion, the fixed lower side wall portion integrally provided on one opposite side portion of the bottom portion, and the other opposite side portion of the bottom portion are integrally raised. A two-part side wall comprising: a fixed lower side wall portion provided; a fixed lower side wall portion integrally provided upright on one opposing side of the bottom portion; and an upper extraction side wall portion detachably attached to the fixed lower side wall portion A fixed lower side wall portion erected on the other opposite side portion of the bottom portion, an intermediate hinge connection side wall portion hinged to the fixed lower side wall portion, and an upper puller removable to the intermediate hinge connection side wall portion When the folding container is assembled in a box shape on the intermediate hinge connecting side wall and the upper pulling side wall constituting the three divided side wall, the above-mentioned 2 The upper part of the divided side wall A lock member that is locked to the side wall portion is provided.

  The other opposite side wall is erected on the other opposite side portion of the bottom, is hinged to the fixed lower side wall portion and the fixed lower side wall portion, and can be disposed so as to overlap the fixed lower side wall portion. Since the intermediate side wall portion and the upper side wall portion arranged to be detachable from the intermediate side wall portion are configured, when the article is taken out from the folding container assembled in a box shape, the upper side wall portion is pulled out from the intermediate side wall portion. By arranging the middle side wall portion so as to overlap the fixed lower side wall portion, a larger front opening can be formed on the other side wall, and thus the article from the folding container assembled in a box shape can be formed. The workability of the take-out work is improved.

  Further, when taking out the article from the folding container assembled in a box shape, the article is taken out from the upper opening of the folding container to the vicinity of the middle side wall of the other side wall, and then the upper side wall of the other side wall. Is pulled out from the intermediate side wall, an opening is formed in the other side wall, the article is taken out from the opening to the vicinity of the fixed lower side wall of the other side wall, and then the intermediate side wall is fixed to the lower side. By arranging so as to overlap the side wall, a larger opening can be formed on the other side wall, and the article can be taken out from the larger opening, so that an easily collapsed article may fall out of the folding container. It can be taken out without any problems.

  Since the intermediate side wall part constituting the other side wall can be arranged so as to overlap the fixed lower side wall part, the operator can work close to the opening formed in the other side wall. Therefore, the workability of taking out the article from the folding container assembled in a box shape is improved.

  The other opposing side wall is hingedly connected to the fixed lower side wall part, the intermediate side wall part detachably arranged on the fixed lower side wall part, and the intermediate side wall part, and is arranged to overlap the intermediate side wall part Since the upper side wall portion is overlapped with the intermediate side wall portion when the article is taken out from the box-shaped folding container, the upper side wall portion is overlapped with the upper side wall portion. By pulling the part from the fixed lower side wall part of the other opposite side wall, a larger front opening can be formed on the other side wall, and thus the article from the folding container assembled in a box shape The workability of the take-out work is improved.

  Further, when taking out the article from the folding container assembled in a box shape, the article is taken out from the upper opening of the folding container to the vicinity of the middle side wall of the other side wall, and then the upper side wall of the other side wall. Is disposed so as to overlap the intermediate side wall portion, and an opening is formed in the other side wall, and the article is taken out from the opening portion to the vicinity of the fixed lower side wall portion of the other side wall. By pulling out the intermediate side wall portion on which the side wall portions are overlapped from the fixed lower side wall portion of the other opposite side wall, a larger opening is formed in the other side wall, and the article is taken out from the larger opening. As a result, it is possible to take out easily fragile articles without spilling out of the folding container.

  Since the upper side wall portion constituting the other side wall can be disposed so as to overlap the intermediate side wall portion, the operator can work close to the opening formed in the other side wall, Therefore, the workability of taking out articles from the folding container assembled in a box shape is improved.

  Further, by dividing the side wall into three parts, the front opening can be enlarged, and even in the folded state, the plane size at the time of assembly does not increase, and it can be folded into a compact state with a low height. .

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

  In FIG. 1, reference numeral 1 denotes a bottom portion having a square shape, and a fixed lower side wall portion 2 a is erected integrally with the bottom portion 1 on one opposite side portion of the bottom portion 1. A fixed lower side wall portion 3 a is also erected integrally with the bottom portion 1 on the other opposite side portion of 1.

  As shown in FIG. 2, the upper end edge of the horizontally long and substantially rectangular plate-like portion 2a1 constituting the fixed lower side wall portion 2a is connected to the outer surface of the plate-like portion 2a1 (folded in a box shape). A top horizontal flange 2a2 that is substantially perpendicular to the surface 2a1 ′ is formed on the outer surface of the container, and a plurality of fitting recesses 2a3 are formed on the top surface of the top horizontal flange 2a2.

  Reference numeral 2b denotes an upper drawing side wall portion that is detachable with respect to the fixed lower side wall portion 2a. A plate-like portion 2b1 is provided at a lower end edge of a horizontally long substantially rectangular plate-like portion 2b1 constituting the upper drawing side wall portion 2b. A lower horizontal flange 2b2 that is substantially perpendicular to the outer surface (surface located outside the folding container assembled in a box shape) 2b1 ′ is formed. The lower surface of the lower horizontal flange 2b2 has a fixed lower side wall 2a. A fitting protrusion 2b3 that can be fitted into a fitting recess 2a3 formed on the upper surface of the upper end horizontal flange 2a2 is vertically provided.

  The fitting protrusion 2b3 suspended from the lower surface of the lower end horizontal flange 2b2 of the upper extraction side wall 2b is fitted into the fitting recess 2a3 formed on the upper surface of the upper end horizontal flange 2a2 of the fixed lower side wall 2a. Thereby, it is comprised so that the upper extraction side wall part 2b can be attached to the fixed lower side wall part 2a so that extraction is possible. Thus, one opposing side wall 2 is comprised by the fixed lower side wall part 2a and the upper extraction side wall part 2b, and this side wall 2 is hereafter called a 2 division | segmentation side wall.

  As shown in FIGS. 1 and 3 to 5, a fixed lower side wall portion 3 a erected on the other opposite side portion of the bottom portion 1 is connected to a known appropriate hinge member H <b> 1 via The intermediate hinge connection side wall portion 3b is hinged, and the intermediate hinge connection side wall portion 3b is formed by tilting the intermediate hinge connection side wall portion 3b in the direction opposite to the outer side, that is, the bottom portion 1, and the inner side, that is, the bottom portion. By tilting in one direction, it can be tilted so as to overlap the fixed lower side wall 3a. In this way, the intermediate hinge connecting side wall portion 3b is configured to be appropriately selected on the inner side or the outer side with respect to the fixed lower side wall portion 3a so as to be overlaid so as to overlap.

  As shown in FIG. 5, the upper edge of the horizontally long and substantially rectangular plate-like portion 3b1 constituting the intermediate hinge connecting side wall portion 3b is attached to the outer surface of the plate-like portion 3b1 (folding container assembled in a box shape). A top horizontal flange 3b2 that is substantially perpendicular to 3b1 ′ is formed, and a plurality of fitting recesses 3b3 are formed on the top surface of the top horizontal flange 3b2.

  3c is an upper drawing side wall part that is detachable with respect to the intermediate hinge connecting side wall part 3b, and a plate-like part is provided at the lower end edge of the horizontally long substantially rectangular plate-like part 3c1 constituting the upper drawing side wall part 3c. A lower end horizontal flange 3c2 that is substantially perpendicular to the outer surface 3c1 ′ of the outer surface of the folding container assembled in a box shape is formed, and an intermediate hinge connecting side wall portion is formed on the lower surface of the lower end horizontal flange 3c2. A fitting protrusion 3c3 that can be fitted into a fitting recess 3b3 formed on the upper surface is provided on the upper surface of the upper end horizontal flange 3b2 that constitutes 3b.

  At the upper end edge of a horizontally long and substantially rectangular plate-like portion 3a1 constituting the fixed lower side wall portion 3a, the outer surface of the plate-like portion 3a1 (surface located outside the folding container assembled in a box shape) 3a1 ' The vertical horizontal upper end flange 3a2 and the upper horizontal flange 3b2 of the intermediate hinge connection side wall 3b hinged to the fixed lower side wall 3a are in surface contact, in other words, as shown in FIG. As shown, the intermediate hinge connection side wall portion 3b is set up on the fixed lower side wall portion 3a so that the fixed lower side wall portion 3a and the intermediate hinge connection side wall portion 3b are substantially flush with each other. The fitting protrusion 3c3 suspended from the lower surface of the lower end horizontal flange 3c2 of the portion 3c is fitted into a fitting recess 3b3 formed on the upper surface of the upper end horizontal flange 3b2 of the intermediate hinge connecting side wall 3b. Ri, upper pull the side wall portion 3c is configured to be mounted for pulling the intermediate hinge connecting the side wall portion 3b. The fixed lower side wall portion 3a, the intermediate hinge connecting side wall portion 3b, and the upper extracted side wall portion 3c constitute another opposing side wall 3, which will be referred to as a three-divided side wall hereinafter.

  Next, the lock member E disposed on the intermediate hinge connecting side wall portion 3b and the upper extraction side wall portion 3c will be described mainly with reference to FIGS. 6 and 7. In the following description, the lock member E is disposed on the upper extraction side wall portion 3c. The provided lock member E will be described.

  At the vertical edge of the plate-like portion 3c1 of the upper extraction side wall portion 3c, an opposing side end vertical flange 3c4 is formed that is substantially perpendicular to the outer surface 3c1 'of the plate-like portion 3c1. A pair of parallel upper horizontal partition ribs 3c5 and lower horizontal partition ribs 3c6 connected to the side end vertical flange 3c4 are formed in the middle of the side end vertical flange 3c4. By connecting the tip of the lower horizontal partition rib 3c6 with the vertical partition rib 3c7, the upper drawing side wall 3c has a plate-like portion 3c1, a side end vertical flange 3c4, an upper horizontal partition rib 3c5, and a lower horizontal partition rib 3c6. And a lock member disposition area A1 defined by the vertical partition rib 3c7. Further, a locking piece 3c5 'is suspended from the lower surface of the upper horizontal partition rib 3c5, and a predetermined gap is formed between the locking piece 3c5' and the plate-like portion 3c1. Similarly, a locking piece 3c6 'is erected on the upper surface of the lower horizontal partition rib 3c6, and a predetermined gap is formed between the locking piece 3c6' and the plate-like portion 3c1. Furthermore, a through hole 3c4 'is formed in the side end vertical flange 3c4 located between the upper horizontal partition rib 3c5 and the lower horizontal partition rib 3c6.

  The lock member E has a substantially rectangular shape having a height substantially the same as the distance between the upper horizontal partition rib 3c5 and the lower horizontal partition rib 3c6 and a width narrower than the distance between the side end vertical flange 3c4 and the vertical partition rib 3c7. It has a block-shaped main body e1, and in the middle of one vertical end surface e1a of the block-shaped main body e1, a through hole 3c4 ′ drilled in the side end vertical flange 3c4 of the above-described upper extraction side wall 3c. A lock projection e2 that can be inserted through the projection is provided.

  The locking member E described above is disposed in the locking member disposition area A1 formed in the upper drawing side wall portion 3c, and the locking piece 3c5 ′ and the plate-shaped portion 3c1 suspended from the lower surface of the upper horizontal partitioning rib 3c5, The main body e1 of the lock member E is disposed in the gap formed between the plate member 3c1 and the engaging piece 3c6 'standing on the upper surface of the lower horizontal partition rib 3c6. Thus, the lock member E is configured to be disposed so as to be movable in the horizontal direction in the lock member disposition region A1 formed in the upper extraction side wall 3c. Then, as shown in FIG. 6, the lock protrusion E2 of the lock member E is moved by moving the lock member E toward the central portion of the upper extraction side wall 3c, in other words, by moving backward. In other words, the lock member E is moved from the retracted position toward the side end vertical flange 3c4 as shown in FIG. In this case, the lock protrusion E2 of the lock member E is configured to protrude from the side end vertical flange 3c4 by being advanced.

  On the other hand, the plate-like portion 2b1 of the upper extraction side wall portion 2b constituting the two-divided side wall 2 is disposed on the upper extraction side wall portion 3c constituting the three-divided side wall 3 when the folding container is assembled into a box shape. A recess or a through hole 2b4 into which the lock protrusion e2 of the lock member E is inserted is formed.

  The lock member E having the above-described configuration is also disposed on the intermediate hinge connection side wall portion 3b hinged to the fixed lower side wall portion 3a that constitutes the three-part side wall 3, and is disposed on the intermediate hinge connection side wall portion 3b. Corresponding to the locked member E, the plate-like portion 2b1 of the upper withdrawal side wall portion 2b constituting the two-divided side wall 2 has a locking member E when the folding container is assembled into a box shape as described above. A recess or through hole 2b4 into which the lock projection e2 is inserted is formed. That is, two recesses or through-holes 2b4 are formed on the left and right ends of the plate-like portion 2b1 of the upper drawing side wall portion 2b constituting the two-divided side wall 2 at predetermined intervals in the vertical direction. Has been.

  As described above, the fitting protrusion 2b3 suspended from the lower surface of the lower end horizontal flange 2b2 of the upper withdrawal side wall portion 2b is fitted into the fitting recess 2a3 formed on the upper surface of the upper end horizontal flange 2a2 of the fixed lower side wall portion 2a. By fitting, the bifurcated side wall 2 composed of the fixed lower side wall portion 2a and the upper drawn side wall portion 2b is disposed substantially perpendicular to the bottom portion 1, and as described above, the fixed lower side wall portion 3a and the intermediate hinge connection side wall 3b hinged to the fixed lower side wall 3a are substantially flush with the intermediate hinge connection side wall 3b on the fixed lower side wall 3a. The locking member E disposed on the hinge connecting side wall 3b is advanced, and the locking protrusion e2 of the locking member E is formed into a recess or a through hole 2b4 formed in the upper extraction side wall 2b constituting the two-divided side wall 2. In So that the intermediate hinge connecting side wall 3b does not fall down, and thereafter, the fitting protrusion 3c3 suspended from the lower surface of the lower horizontal flange 3c2 of the upper extraction side wall 3c is connected to the intermediate hinge connecting side wall 3b. The upper end horizontal flange 3b2 is fitted into a fitting recess 3b3 formed on the upper surface, and then the lock member E disposed on the upper pull-out side wall 3c is moved forward so that the lock protrusion e2 of the lock member E is moved forward. By inserting the three-divided side wall 3 substantially perpendicularly to the bottom 1 by inserting it into a recess or through-hole 2b4 formed in the upper drawing side wall 2b constituting the two-divided side wall 2, FIG. As shown in Fig. 2, the folding container is assembled into a box shape.

  As described above, various articles are stored in the folding container assembled in a box shape. However, when the stored articles tend to collapse, for example, vegetables, fruits, parts, etc. After properly removing the stored article from the upper opening of the folding container assembled in the mold, a predetermined amount of article is taken out to the vicinity of the intermediate hinge connecting side wall portion 3b constituting the three-part side wall 3. The lock member E disposed on the upper pull-out side wall 3c of one of the three divided side walls 3 is moved backward, and the lock protrusion e2 of the lock member E is moved into the two divided side walls 2. Among the recesses or through-holes 2b4 formed in the upper extraction side wall portion 2b constituting the upper part, and then the upper extraction side wall portion 3c is lifted upward. The fitting protrusion 3c3 suspended from the lower surface of the lower horizontal flange 3c2 of the upper extraction side wall 3c is discharged from the fitting recess 3b3 formed on the upper surface of the upper horizontal flange 3b2 of the intermediate hinge connection side wall 3b. Thus, as shown in FIG. 3, the upper extraction side wall 3c of the three-part side wall 3 is extracted. Thereafter, the housed articles are appropriately taken out from the front opening F1 located above the upper end horizontal flange 3b2 of the intermediate hinge connecting side wall 3b, which is opened by removing the upper drawing side wall 3c.

  Further, after a predetermined amount of articles has been taken out to the vicinity of the fixed lower side wall portion 3a constituting the three-part side wall 3, the lock member E disposed on the intermediate hinge connecting side wall portion 3b is moved backward to lock the lock member E. The locking protrusion e2 is discharged from the recessed portion or the through hole 2b4 positioned below the recessed portion or the through hole 2b4 formed in the upper withdrawal side wall portion 2b constituting the two-divided side wall 2, and thereafter shown in FIG. As shown in the figure, the intermediate hinge connection side wall 3b hinged to the fixed lower side wall 3a is fixed to the outer side of the folding container assembled in a box shape so as to overlap the fixed lower side wall 3a. A front opening F2 larger than the above-described front opening F1 is formed above the upper end horizontal flange 3a2 of the lower side wall 3a, and articles stored therein are appropriately removed from the front opening F2. Put out. At this time, since the intermediate hinge connecting side wall portion 3b constituting the three-divided side wall 3 is folded so as to overlap with the fixed lower side wall portion 3a, the operator can take out the article by approaching the folding container. Therefore, coupled with the fact that the height of the three-divided side wall 3 is lowered, the workability of taking out the article from the folding container is improved.

  If the items stored in the folding container assembled in a box shape do not have to worry about collapse and are large or heavy, the worker may enter the folding container and work. As described above, the upper extraction side wall 3c constituting one of the three divided side walls 3 out of the three divided side walls 3 is drawn upward, and then the intermediate hinge connecting side wall 3b is fixed to the fixed lower side wall. By tilting outward so as to overlap with 3a, a large front opening F2 can be formed. Therefore, the workability of taking out the article is improved, and the three-part side wall 3 is divided into three parts. Since the height of the intermediate hinge connecting side wall portion 3b and the fixed lower side wall portion 3a that are stacked on each other can be reduced, the operator can easily fold the container. You can enter.

  In addition, there is a case where an article stored in a folding container assembled in a box shape is taken out using an automatic machine such as a robot. As described above, the upper pull-out side wall 3c is drawn upward to connect an intermediate hinge. By tilting the side wall 3b outward so as to overlap the fixed lower side wall 3a, a large front opening F2 can be formed, so that the hand of an automatic machine such as a robot can be folded from the side in the container. It is possible to insert the robot into an automatic machine hand such as a robot that abuts the folding container and its movement is restricted or the folding container is damaged by an automatic machine hand such as a robot. Can be prevented. Further, since the intermediate hinge connecting side wall portion 3b is tilted so as to overlap the fixed lower side wall portion 3a, an automatic machine such as a robot can be disposed close to the folding container, so that the automatic machine such as a robot can be arranged. The use of is not limited.

  As described above, the folding container from which all the articles have been taken out is lifted upward from the upper extraction side wall 3c constituting the three-part side wall 3, and the upper extraction side wall 3c is removed from the intermediate hinge connection side wall 3b. After pulling out, the intermediate hinge connecting side wall 3b is tilted inward, that is, toward the bottom 1, and overlapped with the fixed lower side wall 3a. Moreover, the upper extraction side wall part 2b which comprises the 2 division | segmentation side wall 2 is lifted upwards, and the upper extraction side wall part 2b is extracted from the fixed lower side wall part 2a. Then, the upper drawn side wall portion 2b and the upper drawn side wall portion 3c that have been pulled out are separated from the bottom portion 1 and the opposite fixed lower side wall portion 2a that constitutes the two-divided side wall 2 and the opposite fixed lower side wall portion 3a that constitutes the three-divided side wall 3. By being accommodated in the side wall accommodating space A2 as shown in FIG. 8, the folding container can be folded into a low height state.

  When the folding container is assembled into a box shape, as shown in FIG. 1, the heights of the two divided side walls 2 and the divided side walls 3 are configured to be substantially the same. Moreover, although the height of the fixed lower side wall part 2a which comprises the 2 division | segmentation side wall 2 and the fixed lower side wall part 3a which comprises the 3 division | segmentation side wall 3 can also be formed in substantially the same height, The height can be lowered. When an article is taken out from a folding container assembled in a box shape, it is taken out from the three-part side wall 3 as described above. Therefore, it is preferable to lower the fixed lower side wall part 3a constituting the three-part side wall 3. As described above, by lowering the fixed lower side wall portion 3a constituting the three-divided side wall 3, the workability of the work of taking out articles from the folding container is improved.

  In the above-described embodiment, the fixed lower side wall portion 3a, the intermediate hinge connecting side wall portion 3b, and the upper extraction side wall portion 3c constituting the three-divided side wall 3 are formed at substantially the same height. Although an example is shown, the fixed lower side wall portion 3a, the intermediate hinge connection side wall portion 3b, and the upper portion of the fixed lower side wall portion 3a, the intermediate hinge connection side wall portion 3b, and the upper portion are provided on the condition that they are overlapped with each other as described above. The height of each of the drawing side wall portions 3c can be different.

  Moreover, the upper extraction side wall part 3c which comprises the three division | segmentation side wall 3 can also be divided into 2 further into an upper extraction side wall part and a lower extraction side wall part. In this case, a fitting protrusion similar to the fitting protrusion 3c3 suspended from the lower surface of the lower horizontal flange 3c2 of the upper extraction side wall 3c is suspended from the lower surface of the lower horizontal flange of the upper extraction side wall. In addition, a fitting recess similar to the fitting recess 3b3 formed on the upper surface of the upper horizontal flange 3b2 of the intermediate hinge connection side wall 3b is formed on the upper surface of the upper horizontal flange of the lower extraction side wall. become. As described above, the above-described three-divided side wall 3 can be divided into four parts, and the upper drawing side wall part 3c can be further divided into three or more parts.

  Further, in the above-described embodiment, an example in which the two-divided side wall 2 is constituted by the fixed lower side wall portion 2a and the upper drawn side wall portion 2b is shown, but the fixed lower side wall constituting the above-described three-divided side wall 3 is shown. As in the relationship with the intermediate hinge connection side wall portion 3b hinged to the portion 3a via the hinge member H1, the two-divided side wall 2 is hinged to the fixed lower side wall portion 2a via the hinge member H1. It can also be comprised by a side wall part. In this case, the pulled-out upper drawn side wall portion 3c constituting the three-divided side wall 3 is fixed to the bottom portion 1 and the opposite fixed lower side wall portion 2a constituting the two-divided side wall 2 and the opposite fixed portions constituting the three-divided side wall 3. After being accommodated in the side wall accommodating space A <b> 2 formed by the lower side wall portion 3 a, the side wall portion hinged to the fixed lower side wall portion 2 a constituting the two-divided side wall 2 is tilted toward the bottom portion 1.

  Next, another embodiment of the folding container of the present invention will be described with reference to FIGS.

  Of the upper extraction side wall portion 3c, the intermediate hinge connection side wall portion 3b, and the fixed lower side wall portion 3a that constitute the three-divided side wall 3, the upper side wall portion 3c ′ corresponding to the upper extraction side wall portion 3c and the intermediate hinge connection side wall portion 3b. The intermediate side wall portion 3b ′ corresponding to is hinge-connected through the hinge member H1 in the same manner as the intermediate hinge connecting side wall portion 3b and the fixed lower side wall portion 3a, and the lower end horizontal flange 3b2 ′ of the intermediate side wall portion 3b ′ A fitting protrusion 3b3 ′ similar to the fitting protrusion 3c3 suspended from the lower surface of the lower end horizontal flange 3c2 of the upper extraction side wall 3c described above is suspended on the lower surface, and the upper end horizontal of the fixed lower sidewall 3a is suspended. The flange 3a2 is formed with a fitting recess 3a3 into which the fitting protrusion 3b3 ′ can be fitted. Further, the above-described lock member E is disposed on the upper side wall portion 3c '. In addition to the upper side wall portion 3c ', the lock member E can be disposed on the intermediate side wall portion 3b'.

  By fitting a fitting protrusion 2b3 suspended from the lower surface of the lower horizontal flange 2b2 of the upper withdrawal side wall 2b into a fitting recess 2a3 formed on the upper surface of the upper horizontal flange 2a2 of the fixed lower side wall 2a. A two-part side wall 2 composed of a fixed lower side wall part 2a and an upper drawn side wall part 2b is arranged substantially perpendicular to the bottom part 1, and is also provided on the lower surface of the lower end horizontal flange 3b2 'of the intermediate side wall part 3b'. The upper fitting side wall 3b3 'fitted to the fitting recess 3a3 formed in the upper end horizontal flange 3a2 of the fixed lower side wall 3a and then hinged to the intermediate side wall 3b' By arranging the part 3c ′ so that the intermediate side wall part 3b ′ and the upper side wall part 3c ′ are substantially flush with each other, the three-part side wall 3 is arranged substantially perpendicular to the bottom part 1. Is shown in FIG. Sea urchin, folding container is to be assembled in a box shape.

  Similar to the embodiment described above, the upper side wall 3c ′ hinged to the intermediate side wall 3b ′ is tilted outward, that is, in the opposite direction to the bottom 1, so as to overlap the intermediate side wall 3b ′. A front opening F1 is formed above the intermediate side wall 3b ′, and the upper side wall 3c ′ and the intermediate side wall 3b ′ in the overlapped state are lifted upward to lower the lower horizontal flange 3b1 of the intermediate side wall 3b ′. By pulling out the fitting protrusion 3b3 'suspended from the lower surface of' from the fitting recess 3a3 formed in the upper horizontal flange 3a2 of the fixed lower side wall 3a, the upper horizontal flange 3a2 of the fixed lower side wall 3a is pulled out. Above, it is comprised so that the front opening part F2 larger than the front opening part F1 mentioned above can be formed.

  In addition, it can replace with the bottom part 1 mentioned above, and can also apply the pallet which has the fork insertion part of a forklift as disclosed by patent 2500288 gazette as an example.

FIG. 1 is a perspective view of the folding container of the present invention assembled in a box shape. FIG. 2 is an exploded perspective view of a two-divided side wall and the like constituting the folding container of the present invention. FIG. 3 is a perspective view of a state in which the upper side wall portion of the three-part side wall is pulled out from the state in which the folding container of the present invention is assembled in a box shape. FIG. 4 is a perspective view showing a state in which the upper side wall portion of the three-part side wall is pulled out and the intermediate side wall portion is tilted from the state in which the folding container of the present invention is assembled in a box shape. FIG. 5 is an exploded perspective view of a three-part side wall and the like constituting the folding container of the present invention. FIG. 6 is a front view of a lock member and the like disposed on the three-part side wall of the folding container of the present invention. FIG. 7 is also a front view of a lock member and the like disposed on the three-part side wall of the folding container of the present invention. FIG. 8 is an exploded perspective view of the bottom, the two-part side wall, and the three-part side wall constituting the folding container of the present invention. FIG. 9 is a perspective view of a folding container according to another embodiment of the present invention assembled in a box shape. FIG. 10 is a perspective view of the folding container of another embodiment of the present invention shown in FIG. 9 in a state in which the upper side wall portion of the three-part side wall is tilted from the state where the folding container is assembled in a box shape. FIG. 11 shows a state in which the folding container according to another embodiment of the present invention shown in FIG. It is a perspective view of the state pulled out.

Explanation of symbols

E ····················································································· ............... ················ 2 split side wall 2a ············· Fixed lower side wall portion 2b ... Pull-out side wall 3 ············· 3 split side wall 3a ············ Fixed lower side wall 3b ···・ ・ ・ Intermediate hinge connection side wall 3c ・ ・ ・ ・ ・ ・ ・ ・ Upper extraction side wall

Claims (1)

A bottom, a fixed lower side wall integrally provided on one opposite side of the bottom, and a fixed lower side wall integrally provided on the other opposite side of the bottom
, A two-divided side wall comprising a fixed lower side wall portion integrally standing on one opposite side portion of the bottom portion and an upper pull-out side wall portion detachably attached to the fixed lower side wall portion, and the other side of the bottom portion A three-part side wall comprising a fixed lower side wall portion standing on opposite sides, an intermediate hinge connection side wall portion hinged to the fixed lower side wall portion, and an upper extraction side wall portion detachably attached to the intermediate hinge connection side wall portion And the upper pull-out side wall portion and the upper pull-out side wall portion constituting the three-divided side wall have an upper pull-out portion constituting the two-divided side wall when the folding container is assembled in a box shape. A folding container having a locking member to be locked to a side wall .

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