KR20210158054A - Corrugated plastic box for easy manufacturing and recycling - Google Patents

Abstract

The present invention relates to a corrugated plastic box, wherein the assembly of the box can be performed easily using an assembly tool without using a metallic screw and recycling thereof can be performed easily, comprising: a main body of the box consisting of an inner box and an outer box; a plurality of horizontal rods assembled to the upper end of the main body of the box for coupling and edge reinforcement with the inner box and the outer box, which constitute the main body of the box, overlapping with each other; and an edge member for assembling the edge parts of the main body of the box while connecting the adjacent parts of the horizontal rods. The main body of the box has a punched hole at the same height with the lower end of the wall body of the horizontal rods with the horizontal rods inserted thereinto. The edge member has a hook formed thereon to correspond to the punched hole to allow the hook to be inserted into the punched hole while supporting the lower end of the horizontal rods, thereby allowing the main body of the box, the horizontal rods and the edge member to be assembled as one body. The horizontal rods have an outer wall body formed relatively long below an inner wall body. The punched hole is formed so that vertical variation can be generated between an inner-side punched hole formed on the inner box and an outer-side punched hole formed on the outer box, thereby varying the hanging position of the hook to perform reinforcement by a difference in assembly height between the inner and outer sides. A pressing member is formed on the lower end of the edge member to perform coupling by a pin structure while folding, and a through hole is formed on the main body of the box below the punched hole to correspond to the same to perform coupling with multiple structures using a blotter member with the edge member inserted and assembled thereto.

Description

Danpla box for easy manufacturing and recycling

The present invention relates to a danpla box used to store products such as materials and parts, and more particularly, to a danpla box that can be easily assembled and recycled using an assembly tool without using a metal piece. It's about the box.

In general, a danpla box is made of polypropylene (PP) as a raw material, and refers to a box manufactured using a DANPLA board manufactured in the form of a hole in the middle like the cross section of a paper box.

The danpla box is mainly used to store and store materials or parts in the logistics system or distribution process, and as shown in FIG. It is manufactured by assembling a piece in the state where the corner assembly is inserted in the corner of the frame bar and connecting the box body, the frame bar, and the corner assembly.

However, the Danpla box assembled in this way has a problem in that durability is deteriorated when loading in multiple stages in a piece assembled state.

Therefore, in order to solve this problem, Korean Patent No. 10-0940059 (Jan. 26, 2010) proposes a structure in which the durability is reinforced by integrally bending the support protrusion and the fitting protrusion in the longitudinal direction to the edge member made of a thin metal plate. Since this is a structure in which a metal frame member is assembled into a plastic box body, productivity is very low, and since it is a structure that bends a metal material, there is a problem that manufacturing cost is excessively increased, recycling is difficult, and workability is poor in the assembly process there is a problem.

Therefore, in Korean Patent No. 10-1787722 (2017.10.12.), a method of assembling by punching a hole in the upper reinforcing material and inserting the corner reinforcing material into the upper reinforcing material by a forced fitting method has been proposed.

However, in the above method, there was a problem in that the upper reinforcing material was not firmly coupled to the box body, so it had to be fastened using a piece in the end.

KR 200213737 Y1 KR 20201000001479 U KR 100940059 B1 KR 101787722 B1

The present invention is to solve the above problems, and the box body, crossbar, and corner members constituting the danpla box are simultaneously fixed together in a simple fitting structure without using a piece, so that it can be easily assembled while being strong assembling made this happen.

In addition, it is made to have a multi-fixing structure by utilizing the deviation of the inner and outer walls of the reinforcing bar and corner members for assembling the box body in which the wall is overlapped in a double structure.

The present invention as a technical idea for achieving the above object is a box body composed of an inner box and an outer box, and the inner box and the outer box constituting the box body are superimposed on the upper end of the box body for fastening and frame reinforcement. In the danpla box comprising a plurality of crossbars to be assembled, and a corner member for assembling the corner portion of the box body while connecting adjacent portions of the plurality of crosspieces to each other, the box body has a crosspiece inserted therein In this state, a perforated hole is formed at the same horizontal height as the lower end of the wall of the crosspiece, and the corner member forms a hook corresponding to the perforated hole, so that the hook is inserted into the perforated hole while supporting the lower end of the crosspiece, the box body and the crosspiece The corner member is assembled integrally, and the crosspiece forms the outer wall relatively longer than the inner wall, and the perforated hole has an upper and lower deviation between the inner perforated hole formed in the inner box and the outer perforated hole formed in the outer box. It is formed to occur so that the hooking positions of the hooks are arranged differently from each other, so that reinforcement is made by the height difference between the inner and outer sides of the assembly.

In addition, a press-fitting member is formed at the lower end of the corner member to be fastened in a pin structure while performing a folding operation, and a corresponding through hole is formed on the lower side of the perforated hole in the box body to insert the corner member and assemble the blotting member. It is designed to be fastened in a multiple structure by using it.

According to the Danpla box, which is easy to manufacture and recycle, in the Danpla board manufacturing process, the perforated hole is pre-printed and manufactured when the press is taken, and since it has a fitting structure by utilizing the hole, a metal piece or an assembly bolt can be used. Although it is firmly assembled without use, it can simplify the manufacturing process and improve assemblyability to greatly improve production efficiency, and even when disposing of danpla boxes, separate collection and recycling can be facilitated.

In addition, when assembling the corner member, the assembly position is changed in a zigzag manner to the inside and outside of the fastening structure, so the frictional resistance is low during assembly, so assembly is possible with little force. Therefore, even when carrying or carrying a handle while holding a heavy object, the load is not concentrated in one place and the load is distributed, thereby preventing partial breakage or damage and greatly improving durability.

1 is an external perspective view showing the assembly structure of a conventional danpla box;
Figure 2 is an external perspective view of the Danpla box of the present invention;
3 is an exploded view showing the assembly structure of the danpla box of the present invention;
Figure 4 is an assembly structure diagram of the corner member of Figure 3;
Figure 5 is a cross-sectional view of the assembled state of the corner member of Figure 3;
6 is a cross-sectional view showing another embodiment of the hook of the corner member of FIG.
7 and 8 are perspective views according to another embodiment of the corner member of the present invention
9 is an assembly structure diagram according to another embodiment of the corner member of the present invention;
10 is a cross-sectional view of an assembled state of the Danpla box using the corner member of FIG.
11 is a cross-sectional view of an assembled state of the Danpla box using the corner member of FIG.

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

Danpla box according to the present invention is provided with a box body 100 made of synthetic resin to constitute a storage space, and a crossbar 200 and a corner member 300 are mounted on the open upper rim of the box body 100 to facilitate assembly. By improving the assembly structure of the box body 100, the crossbar 200, and the corner member 300, a simple and robust assembly can be achieved without using a metal bolt.

Figure 2 is a view showing the assembly structure of the danpla box of the present invention, Figures 3 to 5 are views showing the detailed assembly configuration of the box body 100, the crossbar 200 and the corner member 300.

When described with reference to the drawings, first, the box body 100 may be configured as a hexahedron in a state in which the upper side of the storage space is opened, and the inner box 100a and the outer box 100b are reinforced with two layers. this is done

For example, if the inner and outer boxes 100a and 100b are made in a hexahedral box shape and the inner box is made relatively smaller than the outer box, the inner box is inserted into the outer box to form the box body 100 in two layers. As what can be done, the box body 100 is composed of two box bodies having slightly different sizes as described above, or by composing an inner box by adding a plurality of plates to the inner surface of a foldable outer box constructed by folding the development view. It can be constructed in two layers.

At this time, the box body 100 can be configured by cutting into a folded structure so as to have a rectangular bottom surface configured to constitute a shape of a hexahedron, and a side wall erected perpendicular to the four sides of the bottom surface, and the box body ( 100), it is preferable to cut and use a polypropylene sheet with high strength among synthetic resin materials.

The box body 100 is formed in a hexahedral shape with an open upper side, so that the upper edge is made in a square shape, and the crossbar 200 is inserted on the upper side to close the sheet composed of two layers. At this time, The cross section of the crossbar 200 is made in a '∩' shape including the inner wall 200a and the outer wall 200b to close the upper side.

And in a state in which the crossbar 200 is inserted into the four sides of the upper end of the box body 100 and assembled, the corner members 300 are inserted into the four corners so that the corner member 300 wraps around the end of the crossbar 200, and assembly is easy. is done

At this time, a perforated hole 120 is formed in the box body 100 , and a hook 320 is formed on the inner wall 300a and the outer wall 300b of the corner member 300 , and is inserted into the perforated hole 120 to have a simple fitting structure. assembly can be done.

That is, by finally inserting the corner member 300 in the state of inserting the crossbar 200 to the box body 100 so that the corner member 300 is assembled to the box body 100, the assembly of the danpla box is completed. The box body 100, the crossbar 200, and the corner member 300 themselves are assembled with each other without using a metal means such as a separate piece, so that the manufacturing is simply completed with a fitting structure.

At this time, the perforated hole 120 formed in the box body 100 is a perforated hole 120 at the same horizontal height as the lower ends of the inner and outer walls of the crosspiece in a state in which the crossbar 200 is inserted into the upper side of the box body 100 . ), and the corner member 300 forms a hook 320 corresponding to the perforated hole, thereby inserting the corner member 300 and assembling the hook 320 formed on the inner and outer wall inner surfaces of the corner member 300. Passes the surface of the crosspiece 200 and hangs on the lower end of the crosspiece and is inserted into the perforated hole 120 .

Therefore, the hook 320 is inserted into the perforated hole 120 of the box body 100 and is caught not falling out to the upper side, and at the same time, the hook 320 supports the lower end of the inner and outer wall of the crossbar 200, so a separate metal The box body 100, the crossbar 200, and the corner member 300 are integrally assembled by only assembling the corner member 300 without using a piece or an assembly bolt.

At this time, if the crossbar 200 is formed such that the outer wall 200b is formed to be relatively longer than the inner wall 200a, when assembling the crossbar 200 to the upper side of the box body 100, the relatively long wall first After hanging and supporting the upper side of the box body 100 , the two-layered sheets constituting the box body can be inserted into the groove of the crossbar 200 and assembled.

And by forming different lengths of the inner and outer walls 200a and 200b of the crossbar 200 in this way, the perforated hole 120 is formed in the inner perforated hole 122 formed in the inner box 100a and the outer box 100b. It can be assembled so that the upper and lower deviations occur between the outer perforated holes 124 , and for this reason, the hook 320 is positioned differently from each other, so that the local load when transporting using the handle on the side wall of the box body 100 . Since it is not concentrated on this specific part, it is reinforced by height difference to prevent bending at the assembly part and to improve durability without tilting the side wall inward or outward.

At this time, the outer wall of the corner member 300 is also formed to be relatively longer in the lower side than the inner wall, so that the entry start of the inner and outer hooks 320 is made different from each other, and they are sequentially inserted and assembled.

That is, as shown in FIG. 6 , not only the heights of the hooks 320 formed on the inner and outer walls 300a and 300b of the corner member 300 are made different from each other, but also because the inner and outer walls have different upper and lower lengths. When assembling the corner member 300 on the upper side of the crossbar 200, the relatively long outer wall is first hung on the upper part of the crossbar 200 to support the assembly, and then the inner wall is inserted to assemble the hook 320, and the height of the hook 320 is different from each other. Since the entry start is made differently because the hook 320 is coupled on the surface of the crossbar 200, sequential fitting is induced to induce the inner wall 300a and the outer wall 300b of the corner member 300. The gap By minimizing the , it is possible to assemble the corner member 300 with a small force.

And the inner and outer boxes 100a and 100b constituting the box body 100 are formed by cutting a flat polypropylene sheet, and when cutting the inner and outer boxes, a perforated hole 120 and a through hole ( 140) can be manufactured simply by pressing and cutting integrally.

At this time, the inner box (100a) and the outer box (100b) are configured to be tightly fitted so that they are configured in two layers. 120) is made in the shape of a long hole in the horizontal direction, so that even if the assembly position of the hook 320 is slightly shifted left and right, it can be easily assembled into the perforated hole 120 .

Meanwhile, FIGS. 7 and 8 are views showing another embodiment of the corner member 300 of the present invention, and FIGS. 9 to 11 are a box body 100 and a corner member according to another embodiment of the corner member 300 . As a diagram showing the assembly structure of 300, the box body 100 and the corner member 300 each have a through hole 140 and a pressure member 340 formed therein to secure the corner member 300 in a double locking structure. It can be assembled to the box body (100).

The through hole 140 is formed on the lower side of the perforated hole 120 formed in the box body 100 so that it can be assembled using the blotter member 340 formed in the corner member 300, and the crossbar 200 is It is formed in a position exposed to the lower end of the crossbar 200 in the assembled state to the box body (100).

The blotting member 340 may be integrally formed with the corner member 300 , and in the assembled state by inserting the corner member 300 on the upper side of the crossbar 200 , the blotting member 340 is passed through the through hole 140 . The assembly is performed by inserting it by force-fitting it.

The pressure member 340 may include a pressure bar 342 , a pin part 344 , and a connection part 346 .

The pressure band 342 may be formed widely to have a predetermined area in a plate-like structure such as a circular or polygonal shape, such as a circular shape or a polygonal shape, in order to assemble by a worker pressing the finger when assembling the blotting member 340 into the through hole 140, and the A pin portion 344 may be formed in the center.

The pin portion 344 is inserted into the through hole 140 to fasten the inner box 100a and the outer box 100b of the box body 100, and the tip of the pin portion is inserted into the blotting member 340 when assembling. A tip portion 344a is formed to induce an initial entry, and a locking portion 344b is formed at one end of the outer diameter of the pin portion to enable arbitrary separation in the fastened state.

At this time, the pin part 344 can be assembled in a state that penetrates the two-layer sheet constituting the side wall of the box body 100, but in this case, the tip part 344a is exposed, so it is most preferably The through-hole 140 formed in the two-layered sheet is divided into a first through-hole 142 and a second through-hole 144 through which the pin part 344 is initially entered, and any one of the two-layered sheets is formed. By making the locking part 344b pass through the bay, the tip part 344a is accommodated in the through hole 140 formed in the remaining one-ply sheet so as not to be exposed to the outside.

And in this way, the pin part 344 receives the tip in a state where it is locked by the locking part 344b in a state that penetrates only the one-ply sheet, that is, the first through hole 142, and prevents arbitrary separation of the pin part. For this purpose, the size of the hole of the second through hole 144 is relatively larger than that of the first through hole 142 so that it has a diameter of a double structure.

At this time, the first through hole 142 and the second through hole 144 may be formed in the inner box 100a or the outer box 100b according to the fitting direction of the blotting member 340, and from the inside of the box body. When assembling the blotting member 340 by inserting it, a first through hole 142 and a second through hole 144 are sequentially formed in the inner box and the outer box, respectively, and the blotting member 340 is inserted and assembled from the outside of the box body. In this case, the first through hole 142 and the second through hole 144 may be sequentially formed in the outer box and the inner box, respectively, and most preferably, the inner and outer walls 300a and 300b of the corner member as described above. By forming all of the blotting members 340 in the box body to cross-assemble in the reverse direction so that assembly is made from the inside of the box body and assembly is also made from the outside, the supported area can be further increased so that a more robust assembly can be achieved. have.

In addition, the pressure bar 342 may be rotatably mounted while being folded up and down in a state integrally formed at the lower end of the corner member 300 by the connecting portion 346 .

In addition, in order to form the hook 320 on the inside of the corner member 300, a pull-out hole is formed at the upper end of the corner member to enable insertion and extraction of the mold for hook molding. It becomes possible to manufacture simply. At this time, in forming the blotting member 340, the pressure bar 342 is connected by the connecting part 346, so that the inner wall 300a and the outer wall 300b of the corner member 300 are By integrally forming a vertically bent shape at the lower end, despite the structure in which the blotter member 340 is added and integrally formed, the upper and lower mold structures enable simple fabrication in a single mold.

In addition, the pressure member 340 is formed at the lower end of the inner wall 300a and the outer wall 300b of the corner member 300 to face each other, respectively, and the pressure member 340 of the inner and outer walls has the upper and lower heights. It may be formed to have a deviation, and the through-hole 140 formed in the box body 100 is configured in parallel at different heights up and down to correspond to the pressure members of the inner and outer walls, so that the corner member 300 is located at the bottom of the box. It may be configured to be fastened to the box body 100 in a multi-structure in which the height difference between the top and bottom is different by the pressure member 340 .

Therefore, the hook 320 is assembled to have different fastening positions at the inner and outer sides of the box body 100, and at the same time, the blotting member 340 is assembled to have different fastening positions at the lower end of the box body 100, so that a total of 4 steps Since the fastening parts of the unit are configured to vary the assembly positions in a zigzag inside and out while changing their fastening positions, the load is not concentrated in one place and the box body ( 100) is distributed over the entire lateral side.

In addition, it is possible to prevent breakage or damage and greatly improve durability while firmly assembling without using metal pieces or assembly bolts. .

At this time, the blotting member formed on the inner wall and the blotting member formed on the outer wall may each be composed of a plurality of blotting members 340, and since the assembly is performed in a state in which the plurality of blotting members are arranged in the horizontal direction, the corner member ( 300) is more firmly fixed to the box body 100, and it is possible to prevent the horizontal inclination of the corner member 300.

100: box body 100a: inner box 100b: outer box
120: perforated hole 122: inner perforated hole 124: outer perforated hole
140: through hole 142: first through hole 144: second through hole
200: crossbar 200a: inner wall 200b: outer wall
300: corner member 300a: inner wall 300b: outer wall
320: hook
340: pressure member 342: pressure band 344: pin portion
344a: tip 344b: locking part 346: connecting part

Claims (4)

The box body 100 consisting of the inner box 100a and the outer box 100b, and the inner box and the outer box constituting the box body 100 are superimposed on the top of the box body for fastening and rim reinforcement. In a danpla box comprising a plurality of crossbars 200 and a corner member 300 for assembling the corner portions of the box body while connecting adjacent portions of the plurality of crossbars 200 to each other,
The box body 100 has a perforated hole 120 formed at the same horizontal height as the lower end of the wall of the crosspiece in a state in which the crosspiece 200 is inserted, and the corner member 300 has a hook 320 corresponding to the perforated hole. ) is formed, and the hook 320 is inserted into the perforated hole 120 while supporting the lower end of the crosspiece so that the box body 100, the crosspiece 200, and the corner member 300 are integrally assembled,
The crossbar 200 has an outer wall body 200b formed to be relatively longer than the inner wall body 200a to the lower side,
The perforated hole 120 is formed so that an upper and lower deviation occurs between the inner perforated hole 122 formed in the inner box 100a and the outer perforated hole 124 formed in the outer box 100b, so that the hooking positions of the hooks are mutually exclusive. Danpla box that is easy to manufacture and recycle, characterized in that it is arranged differently and reinforced by the height difference between the inner and outer sides of the assembly. The box body 100 consisting of the inner box 100a and the outer box 100b, and the inner box and the outer box constituting the box body 100 are superimposed on the top of the box body for fastening and rim reinforcement. In a danpla box comprising a plurality of crossbars 200 and a corner member 300 for assembling the corner portions of the box body while connecting adjacent portions of the plurality of crossbars 200 to each other,
The corner member 300 has a hook 320 formed so as to be caught at the lower end of the wall of the crosspiece in a state in which the crosspiece 200 is inserted into the box body 100, so that the hook 320 supports the lower end of the crosspiece and the crosspiece 200 ) and the edge member 300 are assembled,
The box body 100 has a through hole 140 formed on the lower side to which the crossbar 200 is assembled, and the edge member 300 has a blotting member 340 at the lower end for coupling with the box body 100. more formed,
The pressure member 340 includes a pressure bar 342 for pressing during assembly, and a pin part 344 protruding from the pressure bar and inserted through the through hole 140 of the box body is formed, and the pressure The stand 342 is a danpla box that is easy to manufacture and recycle, characterized in that it is rotatably mounted while being folded up and down in a state integrally formed at the lower end of the corner member 300 by the connection part 346 . According to claim 2, wherein the pressure member 340 is formed at the lower end of the inner wall (300a) and the outer wall (300b) of the corner member 300 to face each other, respectively, the pressure member 340 of the inner and outer walls It is formed to have an upper and lower height deviation,
The through-holes 140 formed in the box body 100 are configured in parallel at different heights up and down to correspond to the pressure paper members of the inner and outer walls. Danpla box, which is easy to manufacture and recycle, characterized in that it is fastened to the box body 100 with a multi-structure with different height differences. According to claim 3, wherein the box body 100 has a perforated hole 120 is formed at the same horizontal height as the lower end of the wall of the crossbar in a state in which the crossbar 200 is inserted, and the corner member 300 has the hole. Correspondingly, a hook 320 is formed so that the hook 320 is inserted into the perforated hole 120 while supporting the lower end of the crossbar so that the box body 100, the crossbar 200, and the corner member 300 are integrally assembled. become,
The crossbar 200 has an outer wall body 200b formed to be relatively longer than the inner wall body 200a to the lower side,
The perforated hole 120 is formed so that an upper and lower deviation occurs between the inner perforated hole 122 formed in the inner box 100a and the outer perforated hole 124 formed in the outer box 100b, so that the hooking positions of the hooks are mutually exclusive. Danpla box that is easy to manufacture and recycle, characterized in that it is arranged differently and reinforced by the height difference between the inner and outer sides of the assembly.

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