KR102074270B1 - Folding type box - Google Patents

Abstract

The present invention is to form a folding box assembled from the bottom plate and four side plates with a single mold to reduce the mold cost and at the same time easy to assemble, also folded the box for storage of the empty box When laminating in the next multi-layer, it is possible to achieve stable lamination by the support means configured in the box, and in particular, to ensure stable rotational operation when folding and assembling the long side plates configured on both sides of the bottom plate, as well as the upright side plates during assembly. By being stably fixed in a closed state, the assembly of the single side plate can be easily performed, and in the folded state, the long side plate is firmly supported to be protected from external shock.
As a means for solving the above problems, the present invention is to injection molding the bottom plate, both sides of the side plate and the single side plate with a single mold, the injection support piece integrally injection molded at each corner of the bottom plate, folded both sides plate Even in the state, the upper end of the bent support piece is projected upward from the folded side plates, so that when another folding box is stacked on the folded box, the bottom plate downward protrusion of the folding box located at the top is the bottom plate angle of the folding box for the lower part. It is coupled to the bent support pieces protruding at the corners, so that the stack can be firmly formed. Particularly, the guide pieces are formed to reduce the thickness of the bent support pieces located on the short side of the bent support pieces formed at each corner of the bottom plate. The guide groove is inserted into the piece to rotate, so that the guide groove is moved along the guide piece when the long side plate is rotated, and also when folded The guide piece is inserted into the guide groove, and the long side plate cutting portion of the long side plate and the bending support piece contacting the long side constitute a protruding piece and a coupling groove, and when the long side plate is assembled, the long side plate is assembled and assembled. This is fixed upright.

Description

Folding Box {FOLDING TYPE BOX}

The present invention relates to a folding box, while at the same time to form a folding box with a set of molds, so that the stacking of the folded box can be made stably even when folded both sides for storage of the empty box, In particular, the stable rotation operation of the long side plate for folding and assembling the folding box, and to be fixed in an upright state when standing up for the assembly, so that the assembly of the single side plate can be made easily.

In general, the folding box is used for transporting and storing agricultural and marine products and various industrial products when it is used for the purpose of the box, and the used empty box is folded to minimize the volume to reduce the loading space. There is an advantage that is increasingly used.

Examining the prior art regarding the folding box, Utility Model Registration No. 20-0367522 "Separable Type Box that can be Folded and Assembled" (Patent Document 1) and Utility Model Registration No. 20-0407979 "Easy Use Section Lay-up box "(patent document 2) etc. were provided.

Examining the technical contents of the Patent Document 1, the four side wall plate of the box is injection-molded to be separated into the left and right side wall plate bisected with the long side wall plate, each upper side of each side wall plate formed by a prefabricated hinge to separate The long side wall plate and the left and right side wall boards can be assembled in a hinged form so that they can be easily assembled into a box of four side wall plates.When transporting and storing them in empty boxes, the left and right side wall boards are divided into two inner side wall boards. It is possible to reduce the volume, and when transporting, it is related to the detachable box that can be assembled and folded, which can be conveniently used as a high-height box by stacking it high in several layers on top of a known cart.

In addition, when examining the technical contents of Patent Literature 2, in a folding box in which both long side and end side walls are folded, longitudinal holes are provided at the left and right ends of the gap-indented end of the double transverse rib protruding from the outer upper end of both end side walls. A fastener formed by forming a penetrating outer septum, a fastening protrusion on the outside, an oblique resilient piece on the lower side, and an outwardly inclined triangular protrusion on the outer center, respectively, has an outer fastening protrusion on the inner side of the left and right outer septum. Protrudes to the outside through the through-hole penetrating the center of the protrusion, and the oblique elastic piece of the lower side is in contact with the lower surface inside the outer lattices, the outwardly inclined triangular protrusion of the outer surface is inserted into the longitudinal hole of the outer lattices. In this way, between the two fasteners inserted into the outer lateral spaces on both the right and left sides, the operating table is connected by the two outer connection parts to the connection recesses of both fasteners by press-fitting. When downwardly pressing the operating table upwardly slid to the lower diagonal elastic pieces of the left and right fasteners, the outer fastening protrusions of the fasteners are caught by the upper inner protrusions of the fastening grooves formed inside the upper ends of both sides of the long side wall which are in contact with them. It is made to be easy to separate while downwards, and relates to a simple folding box easy to fasten or remove.

Examining the contents of Patent Document 1 and Patent Document 2, the bottom plate and the four side plates are assembled in order to fabricate the prefabricated box, a large amount of cost in the mold production cost to prepare a mold for manufacturing the box about five Not only this, but also the inconvenience of having to reassemble the side plate on each side of the molded base plate.

As a means for eliminating this inconvenience, the present inventor has filed and registered Patent No. 10-1266847 "Foldable Box" (Patent Document 3).

Examining the technical contents of the Patent Document 3, when forming the folding box, the side plate is molded in a state that is foldably connected to each side of the bottom plate, between the bottom plate and each side plate is configured to be connected by a connection fixing plate, the molded When assembling the box, the connection fixing piece is rotated to be fixed to the bottom frame, and each side plate is configured to be folded inward with the connecting fixing plate as an axis. In addition to reducing costs, it is not only easy to assemble the molded box but also stably stackable.

In the case of the patent document 3 relates to a folding box registered by the inventor, it was to mold the folding box with a set of molds, it was effective to reduce the mold cost, as well as easy assembly.

However, in order to transport and store the empty boxes after use, when the empty boxes are folded and stacked in multiple layers, there is no separate support means between the stacked boxes so that the stacking becomes unstable, thus stably stacking the folded boxes in multiple layers. There were disadvantages such as inconvenient to laminate.

As a means to compensate for these disadvantages, the inventor has filed a first file of the patent 10-2016-0151077 "folding box" (referred to as the present invention).

Examining the technical configuration of the present invention, in forming a folding box in which the long side plate and the short side plate are integrally injection-molded at each edge of the bottom plate, a bending support piece is projected at each corner of the bottom plate. The height of the bent support piece is such that the short side plate and the long side plate are projected over the long side plate in a state of being folded on the bottom plate, and the bottom plate has a downward protrusion, and the long side plate cutting part and the short side plate at both lower ends of the long side plate and the single side plate. The cutting support, the bending support pieces protruding at each corner of the base plate is bent in a "b" shape, and the locking projection is formed on the outer side of the downward protrusion protruding on the bottom plate, laminating the folded box, The downward projection is fitted to the inner surface of the bent support piece, and at the same time, the engaging jaw formed at the bottom edge of the bottom plate is placed in the upper end of the bent support piece.

Therefore, in the case of the above-described invention, the folding box, which is assembled with the bottom plate and the four side plates, can be molded into a single mold to reduce the mold cost and at the same time easy assembly, especially for storing the empty box. After folding, there is an effect such that a stable lamination can be made by the support means configured in the box when laminated in multiple layers.

However, there is no means of guiding rotation in the process of folding and assembling the mounting plate, which is configured on both sides of the bottom plate, which may hinder stable operation.In addition, the means for supporting the side plate in the folded state is outside the side plate connecting plate. If there is no external shock in the folded state there is a risk of damage.

Particularly, when both side side plates are vertically upright from the bottom plate for assembly, and the external side plate is removed from the side plate when the single side plate is vertically upright, the side plate is inclined toward the bottom plate. When standing upright, both ends of the short side plate interferes with the inclined long side plate inner surface, so that there is a difficulty in assembling the box.

Utility Model Registration No. 20-0367522 "Separable box that can be assembled and folded" Utility Model Registration No. 20-0407979 "Easy to use folding box" Patent No. 10-1266847 "Foldable Box"

The present invention is to form a folding box assembled from the bottom plate and the four side plates with a single mold to reduce the mold cost and at the same time easy to assemble, and also to fold the box for storage of the empty box When laminating in the next multi-layer, it is possible to achieve stable lamination by the support means configured in the box, and in particular, to ensure stable rotational operation when folding and assembling the long side plates configured on both sides of the bottom plate, and the long side plates are upright during assembly. By being stably fixed in a closed state, the single side plate can be easily assembled, and in the folded state, the long side plate is firmly supported to be protected from external shock.

As a means for solving the above problems, the present invention allows the injection molding of the bottom plate, both side side plate and the single side plate with a single mold, but integrally injection molding the bending support pieces at each corner of the bottom plate, folded both sides plate Even in the state, the upper end of the bending support piece is projected upward from the folded side plates, so that when another folding box is stacked on the folded box, the bottom plate downward protrusion of the folding box located at the top is the bottom plate angle of the folding box for the lower part. It is coupled to the bent support pieces protruding at the corners, so that the stack can be firmly formed. Particularly, the guide pieces are formed to reduce the thickness of the bent support pieces located on the short side of the bent support pieces formed at each corner of the bottom plate. The guide groove is inserted into the piece to rotate, so that the guide groove is moved along the guide piece when the long side plate is rotated, and also when folded The guide piece is inserted into the guide groove, and the long side plate cutting portion of the long side plate and the bending support piece contacting the long side constitute a protruding piece and a coupling groove, and when the long side plate is assembled, the long side plate is assembled and assembled. This is fixed upright.

The present invention allows injection molding of the bottom plate, both sides of the side plate and the single side plate with a single mold, and the bending support pieces are integrally injection-molded at each corner of the bottom plate, so that the upper ends of the bent support pieces are folded. By stacking another folding box on the folded box by protruding upward from both side plates, the bottom downward projection of the folding box located at the upper side is coupled to the bent support pieces protruding at each corner of the bottom plate of the folding box for the lower part. It is possible to achieve a strong lamination, and in particular to configure the guide piece to reduce the thickness of the bending support piece located on the side of the short side of the bending support pieces configured at each corner of the bottom plate, and the guide groove to be inserted into the guide piece to rotate on both sides of the long side plate The guide groove is moved along the guide piece when the long side plate is rotated, and the guide piece is inserted into the guide groove when folded. The long side plate cutting portion of the long side plate and the bent support piece contacting the long side plate are provided with a protrusion and a coupling groove so that when the long side plate is assembled, the long side plate in the assembled state is fixed upright. It is not only easy to mold and assemble, but also to stack a large amount of folding boxes stably, and in particular, when folding and assembling the long side plates configured on both sides of the bottom plate, a stable rotational operation can be made as well as during assembly. By making the long side plate stably fixed in an upright state, the short side plate can be easily assembled, and at the same time, the long side plate is firmly supported in the folded state to be protected from external shock.

1 is a perspective view of a developed state of the present invention
2: partially enlarged view of FIG. 1
3: partially enlarged view of FIG. 1
4: partially enlarged view of FIG. 1
5: partially enlarged view of FIG. 1
6: Side view of FIG. 1
7 is a plan view of FIG.
8 is a perspective view of the folded state of the present invention
9: Side view of FIG. 8
10 is a plan view of FIG.
11 is a developed state as a perspective view of another embodiment of the present invention
12: A state diagram developed as a plan view of another embodiment of the present invention.
Fig. 13: A state diagram folded as a plan view of another embodiment of the present invention
14 is a perspective view of a state laminated in multiple layers in the folded state of the present invention
15 is a state diagram in which the downward projection of the base plate is fitted to the bent support plate in the state of FIG.
16: Assembly state diagram of the present invention
17 is a side view of FIG.
FIG. 18: Stacked Boxes of FIG. 16

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 to 7 is a view of the expanded state molded in a single injection mold of the folding box 10 to be provided in the present invention, Figures 8 to 12 are folded and folded state of the folding box 10 It is a figure in the state which laminated | stacked one box, and FIGS. 13-15 is a figure in the state which assembled the folding box 10. As shown in FIG.

Foldable box 10 to be provided in the present invention consists of two long side plates 40 and two short side plates 60 that are connected to the four sides of the bottom plate 20 and the bottom plate in a rectangular form. do.

The bottom plate 20 and the long side plate 40 are connected through a long side plate connecting piece 41 formed of a long rectangle, one side of the long side plate connecting piece 41 is the bottom plate 20, and the other side of the long side plate 40. And two-stage foldable connection, the connection of the bottom plate 20 and the short side plate 60 is connected in a two-stage foldable through a single side plate connecting piece 61 consisting of a thin plate.

Each corner of the bottom plate 20 is configured to protrude a bending support plate 80 is formed in a "b" shape, the height of the bending support piece 80 as shown in Figure 8, the long side plate 40, 60 Even in the folded state, the upper end portion 81 of the bent support piece 80 protrudes upward from the folded long side plate 40.

As shown in FIGS. 6 and 9, the bottom surface of the bottom plate 20 forms a downward protrusion 21 to form an outer surface 22 and a locking step 23 on the outside of the downward protrusion 21.

The long side plate 40 and the short side plate 60 are formed at both ends of the lower side plate cutting part 42 and the short side plate cutting part 62, and the long and short side plate cutting parts 42 and 62 are long, When folding the single side plates 40, 60, the lower ends of both side plates do not interfere with the bending support piece 80 so that a smooth folding can be made.

Engaging pieces 64 formed with engaging projections 63 are formed at both end portions of the long side plate 40 so as to protrude inwardly the engaging pieces 44 formed with engaging holes 43. By configuring the assembly, the engaging projection 63 of the short side plate 60 is fitted into the engaging hole 43 of the long side plate 40 to be coupled.

A long side plate coupling hole 46 and a short side plate coupling hole 66 are formed at the edge of the bottom plate 20 to which the long side plate 40 and the short side plate 60 are connected. The side plate coupling protrusion 45 and the short side plate coupling protrusion 65 are formed at the lower end of the side plate 60, respectively, and the long side plate coupling protrusion 45 is fitted into the long side plate coupling hole 48 at the time of assembly. The end plate coupling protrusion 65 is fitted into the side plate coupling hole 66 to be coupled.

The technical gist of the folding box 10 to be provided in the present invention is that when the long side plate 40 is rotated to fold or assemble the long side plate 40, the long side plate 40 supports both ends of the stable rotation operation. At the same time, the long side plate 40 in which the folding is located can be stably supported.

That is, the bending support piece 80 located on the short side plate 60 side of the bending support pieces 80 protruding at each corner of the base plate 20 is cut to 1/2 or less to form a thin guide piece 85. , Part is left to the thick portion 86 to reinforce the guide piece 85 as the thickness becomes thin.

At this time, the thickness of the guide piece 85 is preferably set to about 1/2 to 1/6 of the thickness of the bent support piece 80, and if the thickness of the guide piece 85 is thick, the long side plate 40 The width of the guide grooves 48 constituted becomes wider, and if the thickness is thin, the durability of the guide piece 85 is not preferable.

In addition, when the long side plate 40 is rotated for folding and assembling by adding a guide groove 48 to the long side plate cutting portion 42 formed at both lower end portions of the long side plate 40, the guide groove 48 is formed in the guide piece ( 85) and rotate it.

At the same time, when the long side plate 40 is completely folded, the guide grooves 48 of the long side plate 40 are folded into the guide piece 85 of the bent support piece 80 as shown in FIGS. 8 and 10. By doing so, stable support of the folded long side plate 40 can be achieved.

In the practice of the present invention, as shown in Figure 11 to Figure 13, but the protruding configuration of the bent support piece 80 at each corner of the base plate 20, the end of the inner surface 82 of the bent support piece 80, that is, long The engaging groove 89 is vertically recessed at the portion assembled with the side plate cutting portion 42, and the protruding piece 49 is provided at the inner side surface of the long side plate cutting portion 42 assembled with the bending support piece 80. In the configuration, when the long side plate 40 is vertically erected for assembling, the protruding piece 49 of the long side plate cutting part 42 may be fitted into the engaging groove 89 of the bending support piece 80. .

As described above, when the long side plate 40 is assembled, the protruding piece 49 formed on the inner side of the long side plate cutting part 42 is fitted into the coupling groove 89 of the bent support piece 80 so as to be coupled to the long side plate 40. Even if the external force is removed), since the long side plate 40 is maintained in an upright state, the upright operation for assembling the short side plate 60 can be easily performed.

The present invention constituted as described above constitutes a folding box 10, the long side plate 40 and the short side plate 60 through the long side plate connecting piece 41 and the short side plate connecting piece 61 on each edge of the bottom plate 20. By integrally connecting and by forming the folding box 10 into a single mold, not only can the mold manufacturing cost be reduced, but also the long and short side plates 40 and 60 at the edge of the bottom plate 20. Since there is no need for a separate operation for the connection is made of the prefabricated box 10 is made easily.

The folding box 10 to be provided in the present invention is used to assemble the long and single side plates 40 and 60 when used for the purpose of the box, and to fold and store the empty box after use. By transporting them, they are not only easy to handle but also able to store more boxes in a narrow space.

In particular, when the folded box 10 is to be transported and stored in a folded state, even if laminated in a multi-layer by the bent support piece 80 protruding at each corner of the base plate 20, it can be stably laminated more The folding box 10 of can be laminated | stacked.

The process of assembling, folding and laminating the collapsible box 10 provided by the present invention will be described.

For use in a state in which the collapsible box 10 is formed as shown in FIG. 1, the long side plate connecting piece 41 and the short side plate connecting piece 61 are first assembled to the edge of the bottom plate 20. shall.

That is, the long side plate connecting piece 41 and the short side plate connecting piece 61 connecting the long side plate 40 and the short side plate 60 to the bottom plate 20 by 180 ° are folded, thereby making the long side plate connecting piece 41 and the short side plate connecting piece ( The long side plate engaging projection 45 and the short side plate engaging projection 65 configured in 61 are fitted to the long side plate engaging hole 46 and the end side plate engaging hole 66.

At this time, if the side plate connecting piece 61 is assembled with the bottom plate 20 first, and then the long side plate connecting piece 41 is assembled, the folding box 10 is assembled as shown in FIG.

When the end plate connecting piece 61 is folded 180 degrees so that the end plate coupling protrusion 65 is fitted into the end plate coupling hole 66, the end plate 60 naturally rotates by 90 ° to maintain the upright state. .

In the folding process, the bending support piece 80 protruding at each corner may be an obstacle to folding, but there is no problem in folding by the single side plate cutting part 62 configured at both lower ends of the single side plate 60.

When the long side plate connecting piece 41 is folded 180 degrees in a state where the short side plate 60 is 90 ° upright from the bottom plate 20 so that the long side plate coupling protrusion 45 is fitted into the long side plate coupling hole 46, the long side plate 40 is naturally rotated by 90 ° to maintain the upright state.

In the folding process, the bending support piece 80 protruding at each corner may be an obstacle to the folding, but the folding is not a problem due to the long side plate cutting part 42 formed at both lower ends of the long side plate 40.

As described above, when the long side plate 40 is rotated by 90 °, the engaging pieces 44 formed at both side ends are positioned outside the both side ends of the short side plate 60, and at the same time, the engaging protrusion 63 formed at the single side plate 60 is Since it is fitted into the engaging hole 43 formed in the engaging piece 44 of the long side plate 40, so that the long, short side plate 40, 60 folded vertically folded on the bottom plate 20 is made firmly It becomes the use of the box.

If you want to assemble the long, short side plates 40, 60 on the bottom plate 20 after use for the purpose of the box to be stored folded and folded as follows.

As shown in FIG. 13, when the folding box 10 is assembled, the single side plate 60 is held and pushed toward the bottom plate 20 so that the locking protrusion 63 fitted into the locking hole 43 of the long side plate 40 is separated. The end plate 60 is in contact with the bottom plate 20 by rotating the end plate connecting piece 61 by 90 °.

In the above state, holding the long side plate 40 again and pushing toward the bottom plate 20, the long side plate 40 is rotated by 90 ° about the long side plate connecting piece 41 to be brought into contact with the short side plate 60 and as shown in FIG. 8. As the folding is completed, the bending support piece 80 configured at each corner of the bottom plate 20 protrudes upward from the long and short side plates 40 and 60.

As described above, when the long side plate 40 is assembled in a state of rotating downward toward the bottom plate 20 for folding, or when the folded long side plate 40 is rotated upward for assembly, the side plate 40 is formed at both ends. The guide groove 48 is configured to be rotated along the guide piece 85 in a state of being fitted to the guide piece 85 of the bending support piece 80, the stable rotation operation of the long side plate 40 is made.

Therefore, when folding and assembling the long side plate 40, the rotational balance of the long side plate 40 is distorted, thereby making it possible to solve the difficulty of difficulty in smooth folding and assembly.

In particular, when folding the short side plate 60 on the bottom plate 20 and then folding the long side plate 40, the guide groove 48 formed at both ends of the long side plate 40 is a guide piece of the bending support piece 80 Rotation along (85) and then rotated by 90 ° to come in contact with the end plate (60) stops the rotation is completed, the bending support piece (80) in the guide groove 48 configured at both ends of the long side plate (40) The guide piece 85 is kept in the fitted state.

Therefore, even when an external force is applied to the long side plate 40 in a folded state, the long side plate 40 in a state where the guide grooves 48 formed on both sides of the long side plate 40 are fitted to the guide pieces 81 of the bent support piece 80. ) To prevent deformation or damage.

As described above, when the folding of the folding box 10 is completed, the folded boxes may be stacked in a multi-layered manner so that a larger amount of boxes can be stably stacked and stored in a limited space.

That is, when another folded box is stacked thereon while the folded box is placed on the bottom, the downward protrusion 21 protruding on the bottom of the base plate 20 is fitted to the bent support piece 80 protruding at each corner. As a result, stable lamination is achieved.

As described above, when the downward protrusion 21 formed at the bottom of the bottom plate 20 is fitted to the bent support piece 80, the locking step 23 formed at the edge of the bottom plate 20 is the upper end portion of the bent support piece 80 ( 81, and the outer surface 22 of the downwardly projecting portion 21 is in contact with the inner surface 82 of the bent support piece 80, thereby achieving a more stable stacking.

Therefore, the folding box 10 to be provided in the present invention is configured to protrude the bending support piece 80 at each corner of the bottom plate 20, long, folded sheet even in the folded state of the side plates 40, 60 By protruding upward from the end plates 40 and 60, the folded down part 21 protruding from the bottom plate 20 when the folded box is folded is fitted to the bent support piece 80 to be folded. In order to stably stack the boxes in multiple layers, in particular, the guide grooves 48 formed on both sides of the long side plate 40 are folded or assembled in a state of being fitted to the guide pieces 85 of the bending support pieces 80 so as to stably rotate. The operation can be expected, and the form of the folded state is stably supported.

In addition, since the thickness of the guide piece 85 formed in the bending support piece 80 is thinner than 1/2, it is possible to minimize the contact with the end plate cutting portion 62 when the end plate 60 is rotated. Therefore, the size of the single side plate cutting portion 62 can be almost equal to the size of the guide piece 85, thereby minimizing the occurrence of gaps between the single side plate cutting portion 62 and the guide piece 85 in the assembled state. Since it becomes possible, it is possible to provide a high quality folding box 10.

In carrying out the present invention, as shown in FIGS. 11 to 13, when the coupling groove 89 is formed at one side of the bending support piece 80, and the protruding piece 49 is formed at the long side plate cutting part 42, When the box in the folded state can be reassembled and used for the purpose of the box, it can be easily assembled.

That is, when the folding box 10 is folded as shown in FIG. 14, when the long side plate 40 is pulled out for use as a box, the long side plate 40 makes the long side plate connecting piece 41 the axis. Rotating and standing upright.

When the long side plate 40 is upright close to the vertical, the long side plate cutting part 42 comes into contact with the bent support piece 80, and at this time, the protruding piece 49 formed on the inner side of the long side plate cutting part 42 is bent and supported. Rotation may be stopped by the end of the inner surface (82) of the piece (80) for a while, but in the above state to pull the long side plate 40 more outwardly in the above state both sides of the bending support piece 80 injection-molded with synthetic resin ) Is vertically upright while the spacing between them is extended, and at the same time, the protruding piece 49 of the long side plate cutting portion 42 is elastically coupled to the engaging groove 89 formed in the bent support piece 80 to be engaged. .

As described above, when the protruding piece 49 of the long side plate 40 is fitted into the engaging groove 89 of the bending support piece 80, the long side plate 40 is removed even if the external force is removed from the long side plate 40. The inverted state is maintained without being inclined inward.

Therefore, since both hands of the user who wants to assemble the box can be used freely, the side plate 60 is held, and when pulled outwards, the assembly is completed because the assembly is completed.

Even when folded after use, even if the short side plate 60 is folded, the long side plate 40 is maintained in an upright state, but is pushed into the engaging groove 89 of the bent support piece 80 when pushed inward with an external force. Since the protruding piece 49 of the long side plate cutting part 42 which existed is pulled out, folding of the prefabricated box 10 is completed easily.

(10)-folding box (20)-bottom plate
(21)-Downward Projection (22)-Outer Side
(23)-Jang Jaw (40)-Shing Plate
(41)-Sheet plate connection piece (42)-Sheet plate cutout
(43)-Job Ball (44)-Jang
(45)-Shroud Plate Coupling (46)-Shore Plate Coupling
(48)-Guide Home (49)-Extrude
(60)-Single Side Plate (61)-Single Side Plate Connection
(62)-single plate cutout (63)-locking protrusion
(64)-Joining Piece (65)-Single Side Joining Protrusion
(66)-Single Ending Hole (67)-Inside
(80)-Bending Support (81)-Top
(82)-Inside (85)-Guide
(86)-Thickness (89)-Joint Groove

Claims (3)

Each side of the bottom plate 20 constitutes a folding box in which the long side plate 40 and the short side plate 60 are integrally injection-molded, each of the "a" type bending support piece 80 at each corner of the bottom plate 20. The upper end portion 81 of the bending support piece 80 to protrude above the long side plate 40 in a state in which the short side plate 60 and the long side plate 40 are folded on the bottom plate 20, The bottom plate 20 is provided with a downward protrusion 21, a guide groove 48 is recessed in the long side plate cutting portion 42 formed at both ends of the long side plate 40, and among the bending support pieces 80. Rotation for folding and assembling the long side plate 40 by constructing a thick support 86 and a guide piece 85 thinner than the thickness of the thick part 86 in the bent support piece 80 located on the side plate 60. At the time of folding for storage, the guide piece 85 of the bending support piece 80 is inserted into the guide groove 48 of the long side plate 40, and the guide piece 85 constituting the bending support piece 80. Thinly sliced to 1/2 ~ 1/6 thickness of the thick portion 86 By reducing the contact between the guide piece 85 and the end plate cutting part 62 at the time of rotation of the short side plate 60, the single side plate cutting part 62 and the guide piece 85 at the time of assembling the single side plate 60. In constructing a folding box that can reduce the occurrence of gaps therebetween, a coupling groove 89 is formed at the end of the inner surface 82 of the bending support piece 80, and the long side plate cutting portion of the long side plate 40 is formed. When the protruding piece 49 is formed in the 42 and the long side plate 40 is erected, the protruding piece 49 of the long side plate cutting part 42 is fitted into the engaging groove 89 of the bent support piece 80. Folding box characterized in that it is combined. delete delete

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