JP6782957B2 - Folding container - Google Patents

Description

The present invention relates to a folding container that changes into a folded state in which a side wall is overlapped on a bottom wall to form a flat plate, and an assembled state in which a side wall stands up from the bottom wall to form a box.

Conventionally, as this type of folding container, a pair of long side walls rotatably connected to the long side of the bottom wall and a pair of short side walls rotatably connected to the short side of the bottom wall. It is known that a pair of long side walls are rotated and erected from a folded state, and then a pair of short side walls are rotated and erected to be in an assembled state. ing.

JP-A-2003-2003 (paragraphs [0002] to [0003], FIGS. 6 to 8)

By the way, in order to make the contents of the folding container visible in the assembled state, it is conceivable to make a part of the side wall transparent. However, if there is a transparent part on the long side wall that is to be erected first during assembly, when the short side side wall is erected, both sides of the short side side wall are rubbed against the transparent part of the long side side wall and are transparent. The problem of scratches on the part can occur.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a folding container capable of suppressing scratches on the transparent portion of the side wall during assembly.

The invention of claim 1 made to achieve the above object is to rotatably connect a pair of first side walls to a pair of facing sides of a rectangular bottom wall, and to connect the remaining pair of facing sides. A pair of second side walls are rotatably connected to the portion, and the pair of second side walls and the pair of first side walls are stacked on the bottom wall in this order to be in a folded state. A folding container that is raised in the order of a pair of first side walls and a pair of second side walls to be in an assembled state. The first side walls are an opaque portion made of an opaque material and the opaque portion. It is provided with a transparent portion made of a transparent or translucent material that closes the opening formed in the portion, and the opening is arranged so as to include a laterally central position of the first side wall. In a folding container in which a part of the lateral side surface, which is the side surface of both ends of the second side wall in the lateral direction, and the opening face each other during the rotation of the second side wall, the inner surface of the transparent portion is the said. A thick portion of the inner surface of the first side wall that is arranged so as to be offset from the inside of the opaque portion, and a band-shaped region overlapping the lateral side surface of the second side wall in the assembled state is projected in a stepped manner. And, of the lateral side surface of the second side wall, a part facing the opening during rotation of the second side wall protrudes from a part closer to the rotation center of the second side wall and is integrated with the second side wall. A contact protrusion that is formed and slides into the inner surface of the opaque portion of the first side wall, and a side wall-side receiving recess that is formed in the thick portion and receives the contact protrusion in the assembled state. It is a folding container to be provided.

According to the second aspect of the present invention, the contact protrusion has a rib structure extending from the lower end of the inner surface side edge portion of the second side wall of the lateral side surface of the second side wall to an intermediate position in the vertical direction. The folding container according to claim 1 , wherein the upper end portion faces the transparent portion during rotation of the second side wall .

The invention of claim 3 is a plurality of side protrusions that protrude from the edge of the thick portion on the side away from the opening and overlap on both sides of the outer surface of the second side wall, and a plurality of side protrusions that penetrate the side protrusions. And a plurality of engagements having a side surface that protrudes from both sides of the outer surface of the second side wall to engage the plurality of engagement holes and is flush with the lateral side surface of the second side wall. 1. The contact protrusion includes a protrusion, and the contact protrusion extends in the thickness direction of the second side wall over the lateral side surface of the second side wall and the side surface of the engaging protrusion. It is a folding container described in.

The invention according to claim 4, wherein the bottom wall, the bank portion to place on the upper side with al also the connecting portion between the second side wall of the connecting portion between the first side wall, said bank portion, said The folding container according to claim 3 , wherein a bottom wall-side receiving recess for receiving the abutting protrusion is formed in the folded state.

The invention of claim 5, prior SL any one of claims 1 to 4 comprising a Rokkuba over the sides and engages said first sidewall at said assembled state laterally slidably supported in the second side wall The folding container according to claim.

In the present invention, with the first side wall standing upright, the surface of the transparent portion facing the inside of the container is arranged outside the surface of the opaque portion facing the inside of the container. According to the configuration of the present invention, when changing the folding container from the folded state to the assembled state, that is, when erecting a pair of first side walls and then erecting a pair of second side walls. Both sides of the second side wall are less likely to come into contact with the transparent portion. As a result, the transparent portion is less likely to be scratched.

Further, among the lateral side surfaces of the second side wall, the contact protrusion protrudes from the portion that does not face the transparent portion of the first side wall during the rotation of the second side wall, and slides into the inner surface of the opaque portion of the first side wall, so that it is transparent. parts are easily held in a state away from the lateral side of the second side wall, even by this, it scratches that stick is suppressed to the transparent portion.

Perspective view of the folding container according to the first embodiment of the present invention. Perspective view of the folded container in the folded state Bottom wall perspective view Perspective view of long side wall AA sectional view of the long side wall Front view of the short side side wall seen from the outside in the assembled state Enlarged view around the side protrusion wall in FIG. Top view of the short side wall overlaid on the bottom wall Enlarged view around the engaging protrusion in FIG. Perspective view of bottom wall, long side wall and short side wall before erecting short side wall Perspective view of the bottom wall, the long side wall and the short side wall in the middle of erecting the short side wall Perspective view of the bottom wall, the long side wall and the short side wall in the middle of erecting the short side wall Perspective view of the bottom wall, the long side wall and the short side side wall in the middle of erecting the short side side wall Perspective view of the bottom wall, the long side wall and the short side side wall after the short side side wall is erected. (A) Enlarged perspective view around the engaging protrusion of the short side wall, (B) Enlarged perspective view around the engaging hole of the long side wall. (A) Short side side wall perspective view, (B) Long side side wall perspective view of the folding container according to the second embodiment. Top view of the short side wall overlaid on the bottom wall (A) Perspective view of the contact protrusion according to the modified example, (B) Perspective view of the contact protrusion according to the modified example.

[First Embodiment]
As shown in FIG. 1, the folding container 10 of the present embodiment has a box shape having an open upper surface and a rectangular planar shape, and has a pair of short sides on the short side at the outer edge of the bottom wall 11. The side walls 31 and 31 are rotatably connected, and a pair of long side walls 21 and 21 are rotatably connected to the long side portion of the outer edge portion of the bottom wall 11.

As shown in FIG. 3, the bottom wall 11 has a structure in which the bank portion 13 projects from the entire outer edge portion of the rectangular bottom plate 12. The short side wall surface 31 and the long side side wall 21 are rotatably connected to the bank portion 13. Specifically, a pair of short side side walls 31 and 31 are rotatably connected to a pair of short side bank portions 13B and 13B constituting the short side portion of the bank portion 13, and a long side portion of the bank portion 13 is formed. A pair of long-sided side walls 21 and 21 are rotatably connected to a pair of long-sided bank portions 13A and 13A constituting the above. Then, a pair of short side walls 31 and 31 stand on the pair of short side bank portions 13B and 13B, and a pair of long side side walls 21 and 13A on the pair of long side bank portions 13A and 13A. When 21 stands up, the folding container 10 is in the assembled state shown in FIG.

The amount of protrusion of the long side bank portion 13A from the bottom plate 12 is larger than the amount of protrusion of the short side bank portion 13B from the bottom plate 12. Then, from the assembled state (see FIG. 1), after stacking the pair of short side wall surfaces 31 and 31 on the bottom wall 11 (specifically, the bottom plate 12), the pair of short side side walls 31 and 31 By stacking a pair of long side walls 21 and 21 on top of each other, the folding container 10 is in the folded state shown in FIG. To change the folding container 10 from the folded state to the assembled state, a pair of long side walls 21 and 21 are erected, and then a pair of short side walls 31, 31 are erected. In FIGS. 10 to 14, the short side side wall 31 is rotated while the long side side wall 21 is erected on the long side bank portion 13A, and the short side side wall 31 is placed on the short side bank portion 13B. The state when standing up is shown.

As shown in FIG. 1, in the long side side wall 21, the transparent portion 22 made of a transparent or translucent material and the opaque portion 23 made of an opaque material are arranged side by side in a direction orthogonal to the wall thickness direction. I have. Then, the long side side wall 21 makes the inside of the folding container 10 visible through the transparent portion 22 in the assembled state.

Hereinafter, the details of the long side side wall 21 will be described. As shown in FIGS. 10 to 14, the long side side wall 21 has a main wall 24 which is substantially flush with the inward facing surface of the folding container 10 in the long side bank portion 13A in the assembled state. .. The main wall 24 has a structure reinforced by bending the outer edge portion (see FIGS. 4 and 5). Further, a rectangular central opening 24A is formed in the central portion of the main wall 24, and a plurality of ribs 24L project from the outer surface of the portion of the main wall 24 surrounding the central opening 24A (FIG. 1). reference). In FIGS. 10 to 14, one long side wall 21 and one short side wall 31 of a pair of long side walls 21 and 21 and a pair of short side walls 31 and 31 are omitted. ing.

As shown in FIG. 4, the long side side wall 21 has a plurality of support legs 28 hanging from the lower end of the main wall 24. Then, the support legs 28 are received by the connecting recess 14A (see FIG. 3) formed in the long side bank portion 13A, so that the long side side wall 21 is rotatably connected to the long side bank portion 13A.

In this embodiment, the main wall 24 is made of an opaque resin material. Further, as shown in FIGS. 4 and 5, the central opening 24A of the main wall 24 is closed by a transparent plate 25 made of a transparent or translucent resin material. The transparent plate 25 constitutes the transparent portion 22, and the main wall 24 and the plurality of ribs 24L constitute the opaque portion 23. Here, as described above, since the central opening 24A in which the transparent plate 25 is closed is arranged in the central portion of the main wall 24, in the present embodiment, the portion near the center of the long side wall surface 21 is the transparent portion 22. The remaining portion of the long side wall surface 21 is composed of the opaque portion 23. The long side side wall 21 may be manufactured by two-color molding of a transparent or translucent resin material and an opaque resin material, or the main wall 24 and the transparent plate 25 are separately injection-molded and then the main wall 24. It may be manufactured by adhering the transparent plate 25 to the transparent plate 25.

As shown in FIG. 5, the transparent plate 25 is overlapped from the outside of the main wall 24 (outside of the folding container 10) to the edge of the central opening 24A. Therefore, in the assembled state, the surface of the transparent portion 22 (transparent plate 25) facing the inside of the folding container 10 is outside the surface of the opaque portion 23 (main wall 24) facing the inside of the folding container 10. Be placed.

As shown in FIG. 1, the short side side wall 31 has a structure in which a plurality of ribs 32L protrude from the outer surface of the main wall 32. Although not shown, the main wall 32 is substantially flush with the surface of the short side bank portion 13B facing the inside of the folding container 10 in the assembled state, similarly to the main wall 24 of the long side side wall 21. The plurality of ribs 32L are arranged near the outer edge of the short side wall surface 31.

As shown in FIG. 6, an operating member accommodating recess 33A for accommodating the operating member 33 (see FIG. 1) is provided at the center in the width direction in the upper part of the outer surface of the short side side wall 31. The operation member accommodating recess 33A is covered on the outside with a cover member 33K. Further, accommodation grooves 34M extending in the lateral direction are provided on both sides of the operation member accommodation recess 33A, and horizontally long lock bars 34 are accommodated in each accommodation groove 34M. The operating member 33 rotates about a rotation shaft extending in the width direction of the short side wall surface 31 and is arranged at a lock position and an unlock position. The base end portion of each lock bar 34 is connected to the operating member 33. The tip of each lock bar 34 engages with the side of the long side wall 21 when the operating member 33 is in the locked position. The operating member 33 is normally urged to the lock position, and when the operating member 33 moves from the locked position to the unlocked position, the lock bars 34 and 34 are moved to the central side in the longitudinal direction of the short side wall 31 in conjunction with the movement. The lock bar 34 and the long side side wall 21 are disengaged. When the operating member 33 moves from the unlocked position to the locked position, the lock bar 34 moves outward in the width direction of the short side side wall 31, but the lock bar 34 when the operating member 33 is arranged at the locked position is The short side wall 31 does not protrude outward in the width direction from both sides of the short side wall 31 (see FIGS. 13 and 14).

As shown in FIG. 8, the short side side wall 31 has a plurality of support legs 35 hanging from the lower end portion of the main wall 32, similarly to the long side side wall 21. Then, the support leg 35 is received by the connecting recess 14B (see FIG. 3) formed in the short side bank portion 13B, so that the short side side wall 31 is rotatably connected to the short side bank portion 13B. There is.

As shown in FIGS. 10 to 14, side protrusions 26 projecting toward the short side wall 31 are provided on both sides of the long side wall 21. A plurality of engaging holes 27 are formed in the side protrusion wall 26 along the height direction of the long side side wall 21. Further, on both side portions of the short side side wall 31, a plurality of engaging protrusions 37 that plunge into the engaging holes 27 in the assembled state are provided. Specifically, as shown in FIG. 15A, side recesses 37A capable of receiving the side protrusions 26 in the assembled state are provided on the outer surfaces of both sides of the short side wall 31, and the engagement protrusions 37 are provided. Protrudes from the inner part of the side recess 37A. Then, when the folding container 10 is in the assembled state, each short side side wall 31 is sandwiched between a pair of long side side walls 21 and 21, and the engaging protrusion 37 is formed in the engaging hole 27 of the side protrusion wall 26. The long side side wall 21 and the short side side wall 31 are connected by the concave-convex engagement (see FIGS. 1 and 14).

As shown in FIG. 14, on both side portions of the short side side wall 31, contact protrusions 38 projecting outward in the width direction of the short side side wall 31 are provided (in the figure, the contact portion 38 on one side portion is provided. Only the contact portion 38 is shown). As shown in FIGS. 11, 12 and 13, the contact protrusion 38 has a long side wall 21 when the short side wall 31 rotates and the folding container 10 changes from the folded state to the assembled state. It comes into contact only with the opaque portion 23 (main wall 24) of the above. Here, as described above, in the long side side wall 21, the surface of the transparent portion 22 facing the inside of the folding container 10 is arranged outside the surface of the opaque portion 23 facing the inside of the folding container 10. Has been done. Therefore, the short side side wall 31 is likely to be held in a state separated from the transparent portion 22 when the folding container 10 changes to the assembled state. As a result, when the folding container 10 changes from the folded state to the assembled state, it is possible to prevent both side portions of the short side wall surface 31 from coming into contact with the transparent portion 22 and scratching the transparent portion 22.

Specifically, as shown in FIG. 15A, the abutting protrusion 38 is an engaging protrusion 38 arranged on the side closest to the rotation center of the shortest side wall 31 among the plurality of engaging protrusions 37. It is connected to 37 (that is, the engaging protrusion 37 arranged at the lowermost side in the assembled state). Specifically, the abutting protrusion 38 projects from the surface of the engaging protrusion 37 facing outward in the width direction of the short side side wall 31. As shown in FIG. 8, the engaging protrusion 37 arranged on the side closest to the rotation center of the short side side wall 31 is arranged in the middle portion in the height direction of the short side side wall 31. The contact portion 38 is arranged at an intermediate portion in the height direction of the short side side wall 31.

As shown in FIG. 15A, the portion of the contact protrusion 38 facing the side protrusion 26 in the assembled state has a smaller amount of protrusion from the engagement protrusion 37 as it approaches the side protrusion 26 side. It is formed in a tapered shape, which makes it difficult for the contact protrusion 38 to interfere with the engagement protrusion 37 when it is inserted into the engagement hole 27.

Further, the abutting protrusion 38 is arranged so as to straddle the lateral position of the engaging protrusion 37 and the lateral position of the main wall 32, and extends over the entire thickness direction of the short side wall surface 31. According to this configuration, the short side side wall 31 and the long side side wall 21 when the short side side wall 31 is erected are compared with the case where the contact protrusion 38 is partially present in the thickness direction of the short side side wall 31. It is possible to increase the area of the contact portion (specifically, the contact portion between the contact protrusion 38 and the opaque portion 23), and the transparent portion 22 of the long side side wall 21 is stable from the short side side wall 31. Can be separated from each other. As a result, the transparent portion 22 is less likely to be scratched when the short side side wall 31 is erected.

As shown in FIGS. 4 and 15B, the long side side wall 21 is provided with a side wall side receiving recess 27A that receives the abutting protrusion 38 in the assembled state. As a result, in the folding container 10 of the present embodiment, interference between the contact protrusion 38 and the long side side wall 21 in the assembled state is suppressed. Here, the side wall side receiving recess 27A is continuously provided in the engaging hole 27 in the side protrusion wall 26. As a result, it is not necessary to secure a space in the long side side wall 21 for forming the recess for receiving the contact protrusion 38 in a place different from the engaging hole 27.

Further, as shown in FIGS. 8 and 9, the long side bank portion 13A of the bottom wall 11 is provided with a bottom wall side receiving recess 18 for receiving the contact protrusion 38 in the folded state. As a result, in the folding container 10 of the present embodiment, interference between the contact protrusion 38 and the bottom wall 11 in the folded state is suppressed. The bottom wall side receiving recess 18 is formed on the surface of the long side bank portion 13A facing the center side in the short side direction of the bottom wall 11.

This concludes the description of the configuration of the folding container 10 of the present embodiment. In the present embodiment, the long side wall surface 21 corresponds to the "first side wall" of the present invention, and the short side side wall 31 corresponds to the "second side wall" of the present invention. Further, the long side bank portion 13A and the short side bank portion 13B of the bottom wall 11 correspond to the "connecting portion with the first side wall" and the "connecting portion with the second side wall" in the invention of claim 5. .. Further, the engaging hole 27 formed in the side protrusion wall 26 of the long side side wall 21 corresponds to the "engaging recess" in the invention of claim 6.

Next, the action and effect of the folding container 10 will be described. In the folding container 10 of the present embodiment, with the long side wall surface 21 standing upright, the surface of the transparent portion 22 facing the inside of the folding container 10 is more than the surface of the opaque portion 23 facing the inside of the folding container 10. Is also placed on the outside. Therefore, when changing the folding container 10 from the folded state to the assembled state, that is, when the pair of long side walls 21 and 21 are erected and then the pair of short side side walls 31 and 31 are erected. , Both side portions of the short side side wall 31 are less likely to come into contact with the transparent portion 22. As a result, the transparent portion 22 is less likely to be scratched.

Further, in the folding container 10, a pair of long side walls 21 and 21 are rotatably connected to the long side portion of the bottom wall 11, and a pair of short side side walls 31 and 31 are short side portions of the bottom wall 11. It is rotatably connected to. Therefore, when the pair of short side walls 31 and 31 is erected with the pair of long side walls 21 and 21 upright, both side portions of the short side side wall 31 are separated from the center of the long side side wall 21 in the width direction. And rotate. In the folding container 10, since the remaining portion of the long side wall surface 21 excluding the portion near the center is composed of the opaque portion 23, both side portions of the short side side wall 31 are opaque portions 23 rather than the transparent portion 22. It is possible to make it easier to contact with. This makes it possible to further prevent the transparent portion 22 from being scratched.

Moreover, in the folding container 10, when the pair of short side walls 31 and 31 are erected in the state where the pair of long side side walls 21 and 21 are erected, the contact provided on both sides of the short side side wall 31 is provided. The contact portion 38 comes into contact only with the opaque portion 23 of the long side side wall 21. Therefore, the transparent portion 22 whose inward facing surface of the folding container 10 is arranged outside the opaque portion 23 is likely to be held away from both side portions of the short side wall surface 31, and the transparent portion 22 is scratched. It becomes possible to further suppress sticking.

[Second Embodiment]
This embodiment is a modification of the first embodiment, and the structures of the long side side wall 21 and the short side side wall 31 are mainly different. Specifically, as shown in FIG. 16A, in the short side wall surface 31 of the present embodiment, the abutting protrusion 38 protrudes only from both side portions of the main wall 32, and is continuously provided in the engaging protrusion 37. It has not been. The abutting protrusion 38 is arranged below the intermediate position in the height direction of the short side wall 31 (that is, the side closer to the rotation center of the short side wall 31) and extends in the height direction of the short side wall 31. It is formed in a straight line. As described above, in the present embodiment, the contact protrusion 38 extends in the height direction of the short side side wall 31, so that the contact area between the contact protrusion 38 and the opaque portion 23 of the long side side wall 21 is increased. As a result, the transparent portion 22 of the long side side wall 21 can be stably separated from the short side side wall 31. The end of the abutting protrusion 38 on the side away from the rotation center of the short side side wall 31 has a tapered shape in which the amount of protrusion from the main wall 32 decreases as the distance from the rotation center of the short side side wall 31 increases. It is formed.

As shown in FIG. 16B, in the long side side wall 21 of the present embodiment, the side wall side receiving recesses 127 are formed on both sides of the main wall 24. Specifically, thick portions 24B protruding inward of the folding container 10 in the assembled state are provided on both sides of the main wall 24, and the side wall side receiving recesses 127 are formed in the thick portions 24B. ing. The side wall side receiving recess 127 is arranged below the intermediate position in the height direction of the long side side wall 21 according to the shape of the abutting protrusion 38 described above, and is arranged in the height direction of the long side side wall 21. It is formed in a straight line that extends.

In the present embodiment, the width of the short side wall 31 (specifically, the distance between the tips of the pair of contact protrusions 38, 38 provided on both sides of the short side wall 31) is the bottom wall. It is narrower than the distance between the long side bank portions 13A and 13A in 11. The present embodiment is different from the first embodiment in that the bottom wall 11 is not provided with the bottom wall side receiving recess 18 (see FIG. 9 of the first embodiment) as shown in FIG. There is.

Since the other configurations of the folding container 10 of the present embodiment are the same as those of the first embodiment, the description thereof will be omitted. Also in the present embodiment, as in the first embodiment, when the short side side wall 31 is erected, the transparent portion 22 of the long side side wall 21 is less likely to be scratched.

[Other Embodiments]
The present invention is not limited to the above-described embodiment. It can be changed and implemented.

(1) In the above embodiment, the contact protrusion 38 may be arranged only on the side of the engaging protrusion 37, or may be arranged only on the side of the main wall 32 (FIG. 18 (A). )reference). Further, in the latter case, the contact protrusion 38 may be arranged so as to be displaced from the engaging protrusion 37 in the height direction of the short side wall surface 31 (see FIG. 18B).

(2) In the above embodiment, the configuration may not include the contact protrusion 38.

(3) In the above embodiment, only the portion of the long side wall surface 21 that comes into contact with the contact protrusion 38 may be the opaque portion 23, and the remaining portion may be the transparent portion 22. Both sides of the side wall 21 may be an opaque portion 23, and the central portion in the width direction may be a transparent portion 22.

(4) In the above embodiment, instead of providing the contact protrusions 38 on both sides of the short side wall 31, the opaque portion 23 of the long side wall 21 may be provided with protrusions protruding toward the short side wall 31. The protrusions may be formed in an arc shape centered on the rotation axis of the short side side wall 31, or may be formed in a point shape. When the protrusions are formed in a dot shape, a plurality of protrusions may be provided along an arc centered on the rotation axis of the short side wall 31.

(5) In the above embodiment, the "engagement recess" according to the present invention is formed of the engagement hole 27, but is formed on the side protrusion wall 26 which faces the inside of the folding container 10 in the assembled state. It may be composed of recesses.

(6) In the first embodiment, the width of the short side wall 31 (specifically, the distance between the tips of the pair of abutting protrusions 38, 38 provided on both sides of the short side wall 31) is When the distance between the long side bank portions 13A and 13A is narrower, the bottom wall side receiving recess 18 may not be formed on the long side bank portion 13A.

(7) The short side side wall 31 may be configured to include both the contact protrusion 38 of the first embodiment and the contact protrusion 38 of the second embodiment.

10 Folding container 11 Bottom wall 13A Long side bank 13B Short side bank 18 Bottom wall side receiving recess 21 Long side side wall (first side wall)
22 Transparent part 23 Opaque part 27 Engagement hole 27A, 127 Side wall side receiving recess 31 Short side side wall (second side wall)
37 Engagement protrusion 38 Contact protrusion

Claims (5)

A pair of first side walls are rotatably connected to a pair of opposite sides of a rectangular bottom wall, and a pair of second side walls are rotatably connected to the remaining pair of opposite sides. The pair of second side walls and the pair of first side walls are stacked on the bottom wall in this order to form a folded state, and the pair of first side walls and the pair of second side walls are in this order. It is a folding container that is woken up and put into an assembled state.
The first side wall comprises an opaque portion made of an opaque material and a transparent portion made of a transparent or translucent material that closes an opening formed in the opaque portion.
The opening is arranged so as to include a position closer to the center in the lateral direction of the first side wall, and a part of the lateral side surface which is a side surface of both ends in the lateral direction of the second side wall and the opening are the first. In the folding container facing each other while the two side walls are rotating,
The inner surface of the transparent portion is arranged so as to be displaced outward from the inside of the opaque portion.
A thick portion of the inner surface of the first side wall, which is formed by stepping out a band-shaped region overlapping the lateral side surface of the second side wall in the assembled state.
A part of the lateral side surface of the second side wall that faces the opening during rotation of the second side wall protrudes from a portion closer to the rotation center of the second side wall and is integrally formed with the second side wall. The abutting protrusion that is in sliding contact with the inner surface of the opaque portion of the first side wall and
A folding container formed in the thick portion and provided with a side wall receiving recess for receiving the abutting protrusion in the assembled state. The contact protrusion has a rib structure extending from the lower end of the inner surface side edge portion of the second side wall of the lateral side surface of the second side wall to an intermediate position in the vertical direction, and the upper end portion has the second side wall. The folding container according to claim 1, which faces the transparent portion while the side wall is rotating. A side protrusion that protrudes from the edge of the thick portion on the side away from the opening and overlaps with both sides of the outer surface of the second side wall.
A plurality of engaging holes penetrating the side protrusions,
A plurality of engaging protrusions having a side surface that protrudes from both sides of the outer surface of the second side wall and engages with the plurality of engaging holes and is flush with the lateral side surface of the second side wall. ,
The folding container according to claim 1, wherein the abutting protrusion extends in the thickness direction of the second side wall over the lateral side surface of the second side wall and the side surface of the engaging protrusion. The bottom wall is provided with a bank portion for arranging the connecting portion with the first side wall above the connecting portion with the second side wall.
The folding container according to claim 3, wherein a bottom wall-side receiving recess for receiving the abutting protrusion is formed on the bank portion in the folded state. Folding before Symbol according to any one of claims of claims 1 to 4, laterally are slidably supported comprises Rokkuba over the sides and engages said first sidewall at said assembled state of the second side wall Tatami container.

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