KR102145770B1 - Foldable Box - Google Patents

Abstract

The present invention relates to a foldable box and, particularly, to a foldable box including: a lower plate having polygonal sides; a plurality of side plates rotatably connected to the respective sides of the lower plate; and a locking means maintaining erection of a first side plate and a second side plate in contact with each other among the plurality of side plates. The locking means includes: a first locking pin provided on the first side plate and protruding or not protruding to an external side according to reciprocating movement in the direction of the second side plate to be coupled to or decoupled from the second side plate; a second locking pin provided on the second side plate and protruding or not protruding to an external side according to reciprocating movement in the direction of the first side plate to be coupled to or decoupled from the first side plate; a first locking unit formed on the first side plate to be connected to or separated from the second locking pin; a second locking unit formed on the second side plate to be connected to or separated from the first locking pin; and an open receiving unit formed on the second side plate to accommodate the first locking unit while having the inside and the outside opened, which are in a rotating direction of the first side plate. By such configuration, all of the side plates can be unfolded to open the box, and opening the box is easy because the order of unfolding the side plates is not predetermined.

Description

Foldable Box

The present invention relates to a folding-type box, and in particular, to a folding-type box that can open the box by spreading all the side plates, and the order of unfolding the side plates is not determined, so that the box can be easily opened.

In the past, folding boxes were to be able to reduce the volume by folding the side plate inward as published in Korean Utility Model Publication No. 20-2009-0002055 (Patent Document 1).

Such a box was only possible through the top of the open box to retrieve the contents.

On the other hand, some other folding boxes were able to open only the door to the outside after installing the door by cutting a part of the side plate.

In these door-type folding boxes, only the door part is opened, so contents larger than the door cannot be put in the side direction.

In this regard, there are documents such as Korean Utility Model Publication No. 20-2009-0008946 (Patent Document 2).

On the other hand, in other folding boxes, the side plates can open the entire side plate to the outside of only one type of the long side plate or the single side plate, or there are boxes that can open both side plates to the outside, but these boxes open the side plate. There is a priority. In this regard, there are documents such as U.S. Patent Publication No. 2004-0020821 A1 (Patent Document 3).

For example, in order to unfold the long side plate, the single side plate must be unfolded first.

Korean Open Utility Model Publication No. 20-2009-0002055 (2009.03.04) Korean Public Utility Model Publication No. 20-2009-0008946 (2009.09.08) US Patent Publication 2004-0020821 A1 (2004.02.05)

The present invention is to solve the above-described problem, and it is an object of the present invention to provide a folding box that is easy to unfold.

In addition, it is an object of the present invention to provide a folding-type box in which all of the side plates can be unfolded to open the box, and the order of unfolding the side plates is not determined.

In addition, it is an object of the present invention to provide a folding box that is easy to use the folding box by automatically moving the locking pin to its original position when the pulling force of the locking pin is removed.

In addition, it is an object of the present invention to provide a folding box in which the movement distance of the locking pin is properly adjusted so that the locking pin is easy to use.

In addition, it is an object of the present invention to provide a folding box that is easy to use because it is not folded inwardly caught by neighboring side plates when all the side plates are erected.

In addition, it is an object of the present invention to provide a folding box that is easy to use because the first side plate, which is a long side plate, can be independently erected.

Folding box of the present invention for achieving the above object, the lower plate having a polygonal side; A plurality of side plates rotatably connected to each side of the lower plate; A locking means for maintaining the standing of the first side plate and the second side plate in contact with each other among the plurality of side plates, wherein the locking means is provided on the first side plate and is reciprocally moved in the direction of the second side plate to the outside. A first locking pin protruding or non-protruding to be coupled or separated from the second side plate; A second locking pin provided on the second side plate and protruding or not protruding outward as the reciprocating movement in the direction of the first side plate is coupled or separated from the first side plate; A first locking part formed on the first side plate to connect or separate the second locking pin; A second locking part formed on the second side plate to connect or separate the first locking pin; And an opening receiving portion formed on the second side plate to receive the first locking portion, and having an outer side open in the rotation direction of the first side plate.

In addition, the folding box of the present invention, the locking pin is formed on the body, the elastic piece is formed in the body and the locking pin moves in the left and right direction while moving along the side plate and the length of the vertical direction is reduced or restored; It includes; a locking protrusion extending from the end of the body to be coupled or separated from the adjacent side plate.

In addition, the folding box of the present invention further comprises a locking pin receiving portion protruding from the side plate to accommodate the locking pin, wherein the locking pin receiving portion is formed to protrude from the side plate and inclined upward or downward. And a guide piece on which the elastic piece moves when the locking pin moves; It includes; a separation prevention piece that is formed protruding from the guide piece and disposed outside the elastic piece.

In addition, the folding box of the present invention, the locking pin receiving portion, a tunnel portion formed on the side plate through which the locking projection is inserted; further includes.

In addition, in the folding box of the present invention, a stopper protruding inward is formed on the locking pin, and a stopper receiving groove in which the stopper is accommodated is formed on the side plate, and when the locking pin moves, the stopper moves the stopper receiving groove. It touches the forming side.

Further, in the folding-type box of the present invention, a support piece is formed at an end of the second side plate, and the inner surface of the first locking portion is supported by the support piece.

In addition, the folding box of the present invention has an inner locking protrusion and an outer locking protrusion that are spaced apart from each other at regular intervals on the top of the bottom plate to form a fitting groove between the gaps, and the inner locking protrusion and the When disposed between the outer locking projections, a fitting protrusion that can be fitted into the fitting groove is formed.

In addition, in the folding box of the present invention, a first handle is formed on the first locking pin, a second handle is formed on the second locking pin, and a first handle protruding piece is formed at the end of the first handle, , A second handle protruding piece is formed at an end of the second handle, a first handle receiving groove is formed in the first side plate to accommodate the first handle protruding piece, and the second handle protruding piece is accommodated in the second side plate A second handle receiving groove is formed.

The folding box of the present invention has the following effects.

In the present invention, there is a hinge part so that the box can be opened by spreading all the side plates, and since the order of unfolding the side plates is not determined, it is easy to unfold the box.

In addition, in the present invention, when the pulling force of the locking pin is removed, the locking pin automatically moves to its original position, making it easy to use the folding box.

In addition, in the present invention, the movement distance of the locking pin is properly adjusted, so that the use of the locking pin is easy.

In addition, the present invention is easy to use because the side plates are not folded inwardly caught by neighboring side plates when all the side plates are erected.

In addition, the present invention is easy to use because the first side plate, which is a long side plate, can be independently erected.

1 is a perspective view of a folding box according to an example of the present invention
Figure 2 is a perspective view showing a method of unfolding the first side plate of the folding box shown in Figure 1
3(a) and (b) are front and rear perspective views of a first locking pin applied to the present invention
4(a) and (b) are front and rear perspective views of a second locking pin applied to the present invention
Fig. 5(a) is a view showing a state in which no pulling force is applied to the first locking pin when the first side plate is viewed straight from the outside, and Fig. 5(b) is a first locking pin when the first side plate is viewed straight from the outside A drawing showing a state in which a pulling force is applied to and moved
6 is a partially enlarged perspective view of FIG. 5(a)
Fig. 7(a) and (b) show the relationship with the second side plate in Figs. 5(a) and (b), respectively
8(a) and (b) are cross-sectional views of Figs. 7(a) and (b), respectively
9 is a cross-sectional view of a position different from FIGS. 8(a) and (b) for showing a state in which the first side plate is in contact with the second side plate
10(a) and (b) are perspective views showing a method of unfolding the second side plate of the foldable box shown in FIG. 1
Fig. 11(a) is a view showing a state in which no pulling force is applied to the first locking pin when the second side plate is viewed straight from the outside, and Fig. 11(b) is the first locking pin when the second side plate is viewed straight from the outside A drawing showing a state in which a pulling force is applied to and moved
Fig. 12(a) is a view showing a state inserted into the first protrusion receiving groove of the first side plate because no pulling force is applied to the second locking pin, and Fig. 12(b) is moved by applying a pulling force to the second locking pin. Showing the state of being separated from the first protrusion receiving groove of the first side plate
13(a) and (b) are a cross-sectional view of a state in which a second locking pin is inserted into the first protrusion receiving groove and a cross-sectional view of a state in which the second locking pin is pulled away from the first protrusion receiving groove, respectively.
14 (a) to (d) are flow charts of unfolding folded side plates of a folding box
15 is a perspective view of the first side plate and an enlarged view for showing the hinge insertion portion and the fitting protrusion
16 is an enlarged view for showing a perspective view of the lower plate and a hinge portion, a fitting groove, an inner locking projection and an outer locking projection
Figure 17(a) is a state in which the first side plate is folded inward so that the fitting protrusion is positioned inside the inner locking protrusion, and Fig.17(b) is a state in which the first side plate is temporarily erected by inserting the fitting protrusion into the fitting groove. (c) is a diagram showing a state in which the first side plate is spread outward and the fitting protrusion is located outside the outer locking protrusion

Among the configurations of the present invention to be described below, the above-described conventional technology will be referred to for the same configuration as the prior art, and a separate detailed description will be omitted.

The terminology used herein is only for referring to specific embodiments and is not intended to limit the present invention. Singular forms as used herein also include plural forms unless the phrases clearly indicate the opposite. The meaning of "comprising" as used in the specification specifies a specific characteristic, region, integer, step, action, element and/or component, and other specific characteristic, region, integer, step, action, element, component and/or group It does not exclude the existence or addition of

When a component is referred to as being "connected" or "contacted" with another component, it is understood that it may be directly connected or in contact with the other component, but other components may exist in the middle. Should be.

In the following specification, when the side plates 100a, 100b, 200a, 200b form a right angle with the lower plate 900 is called'to erect', and when the side plate is erected and rotated outward, it is called'unfold', and the side plate is erected. When rotated inward, it is said to be'folded'.

Hereinafter, a folding box 10 according to a preferred embodiment of the present invention will be described based on FIGS. 1 to 17.

The folding box of the present invention includes a lower plate 900 having a polygonal side; A plurality of side plates 100a, 100b, 200a, 200b rotatably connected to each side of the lower plate 900; A locking means for maintaining the standing of the first side plates 100a, 100b and the second side plates 200a, 200b in contact with each other among the plurality of side plates, wherein the locking means comprises the first side plates 100a, 100b A first locking pin 500 that is provided in the second side plates 200a and 200b and protrudes or does not protrude outward according to the reciprocating movement in the direction of the second side plates 200a and 200b to be coupled or separated from the second side plates 200a and 200b; The second side plate (200a, 200b) is provided with a reciprocating movement in the direction of the first side plate (100a, 100b), protruding or not protruding outwardly, the first side plate (100a, 100b) is coupled or separated 2 locking pin 600; First locking portions 310a and 310b formed on the first side plates 100a and 100b to which the second locking pin 600 is connected or separated; Second locking portions 410a and 410b formed on the second side plates 200a and 200b to which the first locking pin 500 is connected or separated; Open receiving portions 420a and 420b formed on the second side plates 200a and 200b to accommodate the first locking portions 310a and 310b, and the outer side of the rotational directions of the first side plates 100a and 100b is opened. ); includes.

In the present invention, since the outside of the opening receiving portions 420a and 420b is open, the first side plates 100a and 100b can be unfolded while the second side plates 200a and 200b are erected. That is, regardless of the order of the second side plates 200a and 200b and the first side plates 100a and 100b, the second side plates 200a and 200b may be unfolded first, or the first side plates 100a and 100b may be unfolded first. . Therefore, since the order of unfolding the side plates is not determined, the use of the folding box 10 is more convenient.

In more detail, as shown in FIG. 9, since there are no second side plates 200a and 200b outside the first locking portions 310a and 310b, the first side plates 100a and 100a without unfolding the second side plates 200a and 200b 100b) can be unfolded.

The side plate of the present invention includes two first side plates 100a and 100b disposed on the front and rear sides of the box to face each other, and two second side plates 200a and 200b disposed on the left and right sides of the box to face each other. .

When the first and second locking pins 500 and 600 move in the left and right direction, the elastic pieces 520 and 620 are reduced or restored in length in the vertical direction while moving along the side plate; And locking protrusions (570a, 570b, 670a, 670b) extending from the ends of the bodies 510 and 610 to be coupled or separated from the side plate.

It is preferable that the first and second locking pins 500 and 600 are integral parts.

Stoppers 530 and 630 protruding inward are formed in the first and second locking pins 500 and 600, and stopper receiving grooves 103 and 203 in which the stoppers 530 and 630 are accommodated are formed on the side plate, and the first and second locking pins When the pins 500 and 600 are moved, the stoppers 530 and 630 abut the side surfaces forming the stopper receiving grooves 103 and 203. Accordingly, in the present invention, the movement distances of the first and second locking pins 500 and 600 are appropriately adjusted by the stoppers 530 and 630, so that the first and second locking pins 500 and 600 are easily used.

Further comprising a locking pin receiving portion protruding from the side plate to accommodate the first and second locking pins 500, 600, wherein the locking pin receiving portion is formed to protrude from the side plate and inclined upward or downward, and Guide pieces (710,810) on which the elastic pieces (520,620) ride when the 1,2 locking pins (500,600) move; Separation prevention pieces (720, 820) are protruding from the guide pieces (710, 810) and disposed outside the elastic pieces (520, 620); And tunnel portions 730 and 830 formed on the side plate and through which the locking protrusions 570a, 570b, 670a, and 670b are inserted.

The locking pin receiving portion is formed on the first side plates 100a and 100b, and the first locking protrusions 570a and 570b of the first locking pin 500 are inserted through the movement of the first locking pin 500 A first tunnel part 730 formed through and parallel to the direction; The second locking protrusions 670a and 670b of the second locking pin 600 are formed in the second side plates 200a and 200b, and are inserted through the second locking pin 600 to form a penetration perpendicular to the moving direction of the second locking pin 600 It further includes a second tunnel portion 830; wherein the first tunnel portion 730 is formed through and parallel to the moving direction of the first locking pin 500.

======= 1st and 2nd locking pins (500,600) =======

The first locking pin 500 and the second locking pin 600 differ only in the shape of the locking protrusions 570a, 570b, 670a, and 670b, and the other portions have the same shape, but differ only in dimensions. Therefore, only different configurations are separately mentioned and configurations that are not mentioned are regarded as the same shape, but only the reference numerals in the drawings are shown differently.

The first and second locking pins 500 and 600 are a first locking pin 500 provided on the first side plates 100a and 100b and a second locking pin 600 provided on the second side plates 200a and 200b. Includes.

The first and second locking pins 500 and 600 are connected to one end of the body 510 and 610 and further include handles 540 and 640 to which a finger or a tool is inserted.

The handles 540 and 640 are located on opposite sides of the locking protrusions 570a, 570b, 670a, and 670b with respect to the bodies 510 and 610.

The handles 540 and 640 have a substantially pentagonal cross-sectional shape when viewed straight from the outside or the inside as shown in FIGS. 5 and 11, and the inside and outside are open.

The first handle 540 is formed on the first locking pin 500, the second handle 640 is formed on the second locking pin 600, and the first handle 540 is formed at the other end of the first handle 540. A first handle protruding piece 541 is formed, a second handle protruding piece 641 is formed at the other end of the second handle 640, and the first handle protruding piece is formed on the first side plates 100a and 100b. A first handle receiving groove 740 in which 541 is accommodated is formed, and a second handle receiving groove 840 in which the second handle protruding piece 641 is accommodated is formed in the second side plates 200a and 200b. do.

The force generated when the side plate is unfolded outward after pulling the first and second locking pins 500 and 600 is transmitted through the handles 540 and 640. At this time, the handle receiving grooves 740 and 840 pull the first and second locking pins 500 and 600. When the side plate is later spread outward, the first and second locking pins 500 and 600 are prevented from spreading and disengaging.

On the other hand, when the side plate is spread outward, the locking protrusions 570a, 570b, 670a, and 670b and the elastic pieces 520 and 620 are prevented from being separated from the outside through the tunnel portions 730 and 830 and the separation prevention pieces 720 and 810.

The handle receiving grooves 740 and 840 are included in the locking pin receiving portion.

The handle receiving groove (740,840) is a space that is open to the left and right sides and the inner side based on the side plate.

As shown in FIGS. 5, 6, 7, 11, 12, etc., the constituent pieces forming the handle receiving grooves 740 and 840 are the upper part (not shown), the lower part (not shown), and the upper part. And the outer side (744, 844) connected to the lower side, the outer side (744, 844) protruding inwardly, including a covering piece (748, 848) disposed between the first locking pin 500 on both sides or the second locking pin 600 on both sides. do.

As shown in FIGS. 5 and 11, when the first locking pin 500 on both sides or the second locking pin 600 on both sides are pulled at the same time, the locking pins are close to each other, so the first handle protrusion piece 541 on both sides or The second handle protrusion pieces 641 on both sides become close to each other, and the first handle protrusion pieces 541 on both sides or the second handle protrusion pieces 641 on both sides are not contacted or collided with each other by the covering pieces 748 and 848 .

The bodies 510 and 610 of the first and second locking pins 500 and 600 are substantially rod-shaped and elongate left and right.

The elastic pieces 520 and 620 formed integrally with the bodies 510 and 610 are extended in the vertical direction with respect to the bodies 510 and 610, and have a diagonal direction inclined toward the locking protrusions 570a, 570b, 670a, and 670b.

The elastic pieces 520 and 620 are located between the handles 540 and 640 and the locking protrusions 570a, 570b, 670a, and 670b.

The stoppers 530 and 630 protrude from the rear surfaces of the bodies 510 and 610.

The stoppers 530 and 630 have a substantially triangular cross-sectional shape when viewed straight from the top or bottom. That is, the stoppers 530 and 630 pointedly protrude to the rear side. The action of the stoppers 530 and 630 will be described later.

The lengths of the bodies 510 and 610 and the positions of the elastic pieces 520 and 620 are formed to match the length of the side plate. That is, the length of the body 510, 610 of the first locking pin 500 provided on the first side plates 100a, 100b, which is the long side plate, is a second locking pin 600 provided on the second side plates 200a, 200b, which are short side plates. ) Is formed longer than the length of the body (510, 610).

On the other hand, the first and second locking pins 500 and 600 further include upper extension parts 550 and 650 and lower extension parts 560 and 660 that are branched upward and downward from the other end of the body 510 and 610 and extend.

The upper extensions 550 and 650 and the lower extensions 560 and 660 are obliquely extended so as to move away from each other toward the other side based on the bodies 510 and 610.

The upper and lower extensions 550 and 650 and the lower extensions 560 and 660 are symmetrical vertically with respect to the bodies 510 and 610.

Protective ribs (not shown) are formed on the outer and inner surfaces of the upper extensions 550 and 650 and the lower extensions 560 and 660.

When the first and second locking pins 500 and 600 are moved, the protective rib serves to disperse the impact by contacting the protrusions 750c and 850c of the side plate, thereby improving the durability of the first and second locking pins 500 and 600.

The upper extension portion 550 and the lower extension portion 560 of the first locking pin 500 are referred to as a first upper extension portion 550 and a first lower extension portion 560, and the second locking pin 600 The upper extension 650 and the lower extension 660 are referred to as a second upper extension 650 and a second lower extension 660.

At this time, the locking protrusions (570a, 570b, 670a, 670b) include upper locking protrusions (570a, 670a) and lower locking protrusions (570b, 670b) connected to the upper extensions (550, 650) and lower extensions (560, 660), respectively. Done.

The locking protrusions 570a and 570b of the first locking pin 500 are referred to as the first locking protrusions 570a and 570b, and the locking protrusions 670a and 670b of the second locking pin 600 are the second locking protrusions 670a. ,670b).

In the present specification, the upper locking protrusion 570a and the lower locking protrusion 570b of the first locking protrusion 570a and 570b are referred to as the first upper locking protrusion 570a and the first lower locking protrusion 570b, and the second locking The upper locking protrusion 670a and the lower locking protrusion 670b of the protrusions 670a and 670b are referred to as a second upper locking protrusion 670a and a second lower locking protrusion 670b.

The shape of the first upper locking protrusion 570a and the first lower locking protrusion 570b is the same, so only one of them is described, and the shape of the second upper locking protrusion 670a and the second lower locking protrusion 670b is the same. So, only one of these will be described.

First, a part of the first upper locking protrusion 570a is integrally connected with a part of the other side of the first upper extension part 550.

The first upper locking protrusion 570a is a substantially rectangular parallelepiped, and a plurality of ribs and grooves are formed between the plurality of ribs on the inner and outer surfaces. Therefore, the weight of the first upper locking protrusion 570a is light, but durability can be maintained.

It is preferable that the length of the other side of the first upper locking protrusion 570a is at least longer than the length of the first tunnel part 730. This is because at least a portion of the first upper locking protrusion 570a is accommodated in the second protrusion receiving groove 403 formed in the second locking parts 410a and 410b, so that the first side plates 100a and 100b are provided with the second locking part 410a. ,410b) to prevent rotation.

The shapes of the second locking protrusions 670a and 670b are different from those of the first locking protrusions 570a and 570b.

The second upper locking protrusion 670a is connected to the other side of the second upper extension 650 and extends inward to form approximately 90 degrees, and the tunnel insertion piece 671 is inserted through the second tunnel part 830 and , It comprises a groove insertion piece 673, which is connected to the inner surface of the tunnel insertion piece 671 to form approximately 90 degrees, and is accommodated in the first protrusion receiving groove 303 formed in the first locking portions 310a and 310b.

A groove is formed between a plurality of ribs and a plurality of ribs on the inner and outer surfaces of the second upper locking projection 670a including the tunnel insertion piece 671 and the groove insertion piece 673. Therefore, the weight of the second upper locking protrusion 670a is light, but durability can be maintained.

The inward and outward length of the tunnel insertion piece 671 is at least equal to the inward and outward length of the second tunnel part 830.

In order for the second locking pin 600 to move in the left and right direction, the length in the left and right direction of the second tunnel part 830 must be longer than the length in the left and right direction of the tunnel insertion piece 671.

As shown in FIGS. 1 and 13, at least a portion of the groove inserting piece 673 positioned inside the tunnel inserting piece 671 is disposed on the inner space of the folding box 10.

One portion of the second upper locking protrusion 670a is integrally connected with a portion of the other side of the second upper extension portion 650.

Meanwhile, support pieces 430a and 430b are formed at ends of the second side plates 200a and 200b, and the inner surfaces of the first locking portions 310a and 310b are supported by the first side plates 100a and 100b. It is supported on the pieces 430a and 430b. Therefore, as shown in Figs. 1 and 14 (d), when both the first side plates 100a and 100b and the second side plates 200a and 200b are erected, the side plate is supported in contact with the side plate in contact with the side and folded inward. Is prevented, so the use of the box is convenient.

A detailed description of the support pieces 430a and 430b will be described later.

Meanwhile, the second side plates 200a and 200b are supported in contact with the left or right side of the first side plates 100a and 100b and are prevented from being folded.

On the other hand, as shown in Figs. 15 to 17, the upper portion of the lower plate 900 is spaced apart from each other at regular intervals, the inner locking projection 921 and the outer locking projection 923 forming a fitting groove 910 between the intervals. ) Is formed, and a fitting protrusion 101 that can be fitted into the fitting groove 910 is formed at a lower portion of the side plate when disposed between the inner locking protrusion 921 and the outer locking protrusion 923. Therefore, when the fitting protrusion 101 is fitted into the fitting groove 910, the side plate may be independently erected even if the side plate is supported by the neighboring side plate or the first and second locking pins 500 and 600 are not caught. That is, since the first side plates 100a and 100b are not easily folded inward in an independently erected state, it is easy to use.

The fitting protrusion 101 may be formed only on the first side plates 100a and 100b among the side plates. The reason is that in the process of folding and unfolding the folding box 10, the first side plates 100a and 100b must be kept in a stand-alone state as shown in FIG. 14(c).

The inner engaging protrusion 921 and the outer engaging protrusion 923 have a guide surface inclined so that their height changes toward the inside or outside of the side plate.

Specifically, the inner locking protrusion 921 increases in height toward the inside of the side plate and then decreases again, and the outer locking protrusion 923 increases in height toward the outside of the side plate and then decreases again. Therefore, the fitting protrusion 101 can easily enter the fitting groove 910 along the inclined surface and can be easily separated from the fitting groove 910.

The fitting groove 910 is a space formed by a surface in which the inner and outer locking projections 921 and 923 are connected to each other.

17(b) is a state in which the fitting protrusion 101 is inserted into the fitting groove 910 so that the first side plates 100a and 100b are temporarily erected.

When the first side plates 100a and 100b are folded in the state of FIG. 17(b), the fitting protrusion 101 is separated from the fitting groove 910 as shown in FIG. 17(a) to be inside the inner catching protrusion 921 Is located.

When the first side plates 100a and 100b are unfolded in the state of Fig. 17(b), the fitting protrusion 101 is separated from the fitting groove 910 as shown in Fig. 17(c) and is positioned outside the outer catching protrusion 923 do.

========= Lower plate (900) =========

On the other hand, the lower plate 900 has a plate shape forming a lower surface of the folded box, and has front and rear sides and left and right sides protruding upward.

A plurality of hinge portions 930 are formed on the front and rear sides of the lower plate 900 and on the left and right sides. There is a hinge portion 930 so that the side plates 100a, 100b, 200a, 200b can all be opened and the box 10 can be opened.

The plurality of hinge portions 930 are spaced apart from each other by a predetermined interval to form a space into which the hinge insertion portion 110 of the side plate is inserted.

The hinge portion 930 is formed with a hinge hole (not shown) through which the hinge shaft 111 of the side plate is inserted.

The upper surface of the hinge portion 930 has an arc shape.

The fitting groove 910, the inner locking protrusion 921, and the outer locking protrusion 923 are formed in at least some of the hinge portions 930 on the front and rear sides of the lower plate 900.

It is preferable that the fitting groove 910, the inner engaging protrusion 921 and the outer engaging protrusion 923 are formed in the center of the upper surface of the hinge portion 930.

Meanwhile, in the first side plates 100a and 100b, the hinge insertion portion 110 inserted into the space between the hinge portions 930 protrudes downward from the lower surface.

A plurality of hinge insertion portions 110 are formed and are spaced apart from each other by a predetermined interval so as to correspond to the hinge portion 930.

The fitting protrusion 101 is formed on the lower surfaces of the first side plates 100a and 100b, and is formed between the hinge insertion portions 110 spaced apart from each other.

========= Side plate =========

The side plates are symmetrical on the left and right sides.

Handle receiving grooves (740,840) are disposed in the center of the side plate, and one locking pin receiving portion is formed on the left and right sides based on the handle receiving grooves (740,840), so that a total of two locking pin receiving portions are formed per side plate.

The locking pin receiving portion is formed on a relatively upper side of the side plate.

The locking pin receiving portion further includes space forming ribs 750a, 750b, 750c, 850a, 850b, and 850c formed integrally with the rim of the side plate or the guide pieces 710 and 810.

It is preferable that the space forming ribs 750a, 750b, 750c, 850a, 850b, and 850c have a shape corresponding to the outer shape of the first and second locking pins 500 and 600.

The space forming ribs 750a, 750b, 750c, 850a, 850b, 850c are connected to the rim of the side plate and the constituent pieces (not shown) forming the guide pieces 710 and 810 and the handle receiving grooves 740 and 840 to be described later. Included in the locking pin receiving part.

The tunnel portions 730 and 830 are formed on the left and right edges of the side plate, and are formed by penetrating the edges in the left and right directions.

For example, the guide pieces 710 and 810 on one side are inclined upward from the handle receiving grooves 740 and 840 toward the tunnel parts 730 and 830 on one side. Therefore, when the first and second locking pins 500 and 600 of one side are pulled and moved toward the handle receiving grooves 740 and 840, the elastic pieces 520 and 620 are compressed and deformed to apply a restoring force to the guide pieces 710 and 810. As a result, when the pulling force applied to the first and second locking pins (500,600) is removed, the elastic pieces (520,620) are restored to their original shape before being compressed, and the first and second locking pins (500,600) move to the original position and It is easy to use.

Since the elastic pieces 520 and 620 are formed one at a time on the upper and lower sides, the guide pieces 710 and 810 are also formed with a total of two pieces one by one so as to correspond to the elastic pieces 520 and 620.

Among the guide pieces 710 and 810, the upper guide pieces 710a and 810a and the lower guide pieces 710b and 810b are spaced apart from each other by a predetermined distance.

The upper guide pieces 710a and 810a and the lower guide pieces 710b and 810b are closer to each other toward the handle receiving grooves 740 and 840. That is, the width between the upper guide pieces 710a and 810a and the lower guide pieces 710b and 810b is narrowed. Accordingly, the elastic pieces 520 and 620 are deformed so that the upper elastic piece and the lower elastic piece are gathered together during compression deformation.

The separation prevention pieces 720 and 820 are formed protruding from the surfaces of the upper guide pieces 710a and 810a and the lower guide pieces 710b and 810b facing each other.

The separation preventing pieces 720 and 820 are caught by the ends of the elastic pieces 520 and 620 to prevent the elastic pieces 520 and 620 from being separated from the outside of the side plate.

The stopper receiving grooves 103 and 203 are formed between the upper guide pieces 710a and 810a and the lower guide pieces 710b and 810b.

The stopper receiving grooves 103 and 203 are formed by cutting the side plates in a horizontal direction of the side plate, that is, parallel with the moving directions of the first and second locking pins 500 and 600.

The stopper receiving grooves 103 and 203 are formed in a total of two per side plate, one each on the left and right sides of the side plate.

There are a total of four surfaces forming the stopper receiving grooves 103 and 203, and the stopper receiving grooves 103 and 203 have a rectangular cross-sectional shape having a long left and right length when the side plate is viewed straight from the inside or outside. Among these surfaces, the first and second locking pins 500 and 600 are the surfaces on which the stoppers 530 and 630 are placed close to the handle receiving grooves 740 and 840.

On the left and right sides of the side plate, ribs to which the upper and lower locking protrusions 570a, 570b, 670a, and 670b are contacted and supported are further formed.

========= First side plate (100a, 100b) =========

Since the left and right sides of the first side plates 100a and 100b are symmetric, only the left side will be described in this specification.

The first locking portions 310a and 310b are formed to protrude from the left side of the first side plates 100a and 100b to the left.

The first locking portions 310a and 310b are recessed in the center of the inner surface to form the first protrusion receiving groove 303. That is, the first protrusion receiving groove 303 is formed on a surface facing the ends of the second locking protrusions 670a and 670b.

When a pulling force is not applied to the second locking pin 600, the second locking protrusions 670a, 670b are inserted into the first protrusion receiving groove 303, and when a pulling force is applied to the second locking pin 600 It is separated from the first protrusion receiving groove 303.

The first locking portions 310a and 310b are of the first side plates 100a and 100b so that the second upper locking protrusion 670a and the second lower locking protrusion 670b of the second locking pin 600 can be inserted, respectively. A total of two are formed on the left side and are separated from each other.

The first tunnel part 730 is formed on the left side of the first side plates 100a and 100b.

The first tunnel part 730 is provided on the left side of the first side plates 100a and 100b so that the first upper locking protrusion 570a and the first lower locking protrusion 570b of the first locking pin 500 are respectively inserted. Two are formed, each separated from each other.

The first locking parts 310a and 310b and the first tunnel part 730 are alternately arranged one by one.

========= Second side plate (200a, 200b) =========

The second side plate (200a, 200b) is formed with a handle (not shown) for the folding-type box 10 above the second handle receiving groove 840.

Since the left and right sides of the second side plates 200a and 200b are symmetric, only the right side will be described in this specification.

The second locking portions 410a and 410b are formed to protrude toward the first side plates 100a and 100b from the inner surface of the right edge of the second side plates 200a and 200b.

The second protrusion receiving groove 403 is a groove formed by recessing the center of the inner surface of the second locking portions 410a and 410b. When a pulling force is not applied to the first locking pin 500, the first locking protrusions 570a and 570b are inserted into the second protrusion receiving groove 403, and when a pulling force is applied to the first locking pin 500 It is separated from the second protrusion receiving groove 403.

The second locking portions 410a and 410b have a substantially rectangular parallelepiped shape, but the center thereof is recessed to form a second protrusion receiving groove 403. That is, the second protrusion receiving groove 403 is formed on a surface facing the ends of the first locking protrusions 570a and 570b.

The second locking portions 410a and 410b are inserted into the second side plates 200a and 200b so that the first upper locking protrusion 570a and the first lower locking protrusion 570b of the first locking pin 500 can be respectively inserted. Is formed.
The second locking portions 410a and 410b include an upper second locking portion 410a and a lower second locking portion 410b spaced apart from each other.

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Meanwhile, additional protrusions 222 having the same shape as the second locking portions 410a and 410b are further formed on the second side plates 200a and 200b below the lower second locking portions 410b.

As shown in Fig. 2(b), the additional protrusion 222 is the lower second locking part 410b at the same distance as the spaced between the upper second locking part 410a and the lower second locking part 410b. And are separated.

Meanwhile, the support pieces 430a and 430b to which the first locking portions 310a and 310b are contacted and supported have a shape corresponding to the inner surfaces of the first locking portions 310a and 310b, but have a substantially'c' shape. That is, the support pieces 430a and 430b are opened inside with respect to the second side plates 200a and 200b and open inside and outside with respect to the first side plates 100a and 100b, so that a total of three surfaces are opened.

The support pieces 430a and 430b include an upper support piece 430a in which the upper first locking part 310a is contacted and supported between the upper second locking part 410a and the lower second locking part 410b, and the lower second locking part 410a. It includes a lower support piece (430b) connected to the lower side of the locking portion (410b) to support the lower first locking portion (310b) in contact.

The thickness of the support pieces 430a and 430b is thinner than that of the second locking portions 410a and 410b and the thickness of the second side plates 200a and 200b. Therefore, the upper opening receiving portion 420a is surrounded by the inner surfaces of the second side plates 200a and 200b and the upper and lower second locking portions 410a and 410b to form a space, and the lower opening receiving portion 420b is a second side plate ( 200a and 200b) and surrounded by the lower second locking portion 410b and the additional protrusion 222 to form a space.

The upper open receiving part 420a and the lower open receiving part 420b have the same shape.

The opening receiving portions 420a and 420b accommodate the first locking portions 310a and 310b and the second locking protrusions 670a and 670b.

The second tunnel part 830 is positioned side by side with the opening receiving parts 420a and 420b. The reason is that the second locking protrusions 670a and 670b are in a horizontally parallel shape.

The second tunnel part 830 is also composed of an upper second tunnel part 830 and a lower second tunnel part 830 in the same way as the open receiving parts 420a and 420b.

========== How to erect all folded side plates ==========

14(a) to 14(d), in order to form an inner space in the folding box 10 of the present invention, when the side plates are all folded, a method of unfolding and erecting all side plates will be described in order.

14(a) shows a state in which all side plates are folded.

First, in the state of FIG. 14(a), the second side plates 200a and 200b disposed on the upper side as shown in FIG. 14(b) are rotated outward so that the first side plates 100a and 100b are exposed to the outside. .

Thereafter, as shown in FIG. 14(c), the first side plates 100a and 100b are temporarily erected. At this time, a fitting relationship between the above-described inner locking projection 921 and the outer locking projection 923 and the fitting groove 910 and the fitting projection 101 is used.

Thereafter, as shown in FIG. 14(d), the second side plates 200a and 200b are rotated in the inward direction, and a pulling force is applied to the second locking pin 600 in the state of FIG. 13(a), as shown in FIG. 13(b). Let them pull together. Through this process, as shown in Fig. 14(d), when the second side plates 200a and 200b are vertically erected in parallel with the first side plates 100a and 100b, the pulling force applied to the second locking pin 600 is removed. Then, the second locking pin 600 returns to its original position as shown in Fig. 13(a). Accordingly, the second locking protrusions 670a and 670b are accommodated in the first protrusion receiving groove 303 of the first locking portions 310a and 310b, as shown in FIG. 13(a), so that the second side plates 200a and 200b are The second locking pin 600 is caught by the first locking portions 310a and 310b and is not rotated inward and outward, and the erect state is maintained.

In addition, when the second side plates 200a and 200b are erected, the first locking protrusions 570a and 570b are accommodated in the second protrusion receiving grooves 403 of the second locking parts 410a and 410b as shown in FIG. 8(a). Therefore, in the first side plates 100a and 100b, the first locking pin 500 is caught by the second locking portions 410a and 410b and cannot be rotated inward and outward, and the erect state is maintained.

On the other hand, it is also possible to fold all the side plates by performing the above-described process of erecting the side plates in reverse. That is, it is sufficient to proceed in order from Figs. 14(d) to 14(a).

On the other hand, in the present invention, when the side plate is unfolded to open the folding box 10 in the state of FIG. 14(d), the unfolding order of the side plate is not determined.

Specifically, in the state of FIG. 14(d), it may be unfolded from the first side plates 100a and 100b, which are long side plates, or the second side plates 200a and 200b, which are short side plates.

When unfolding from the first side plates 100a and 100b, pull the first locking pin 500 in a state as shown in FIG. 8(a) and the first locking protrusions 570a and 570b as shown in FIG. 8(b) become the second protrusions After being separated from the receiving groove 403, the first side plates 100a and 100b may be unfolded.

When all of the second side plates 200a and 200b are unfolded, the first side plates 100a and 100b are unfolded only by applying a force in the unfolding direction without the need to operate the first locking pin 500. At this time, after the fitting protrusion 101 is separated from the fitting groove 910, the outer locking protrusion 923 is passed.

When unfolding from the second side plates 200a and 200b, pull the second locking pin 600 in a state as shown in FIG. 13(a) and the second locking protrusions 670a and 670b as shown in FIG. 13(b) become the first protrusions After being separated from the receiving groove 303, the second side plates 200a and 200b may be unfolded.

When all the first side plates 100a and 100b are unfolded, the second side plates 200a and 200b are unfolded only by applying a force in the unfolding direction without the need to manipulate the second locking pin 600.

As described above, although it has been described with reference to a preferred embodiment of the present invention, a person of ordinary skill in the art will diversify the present invention within the scope not departing from the spirit and scope of the present invention described in the following claims. It can be changed or modified accordingly.

** Description of key symbols **
100a,100b: first side plate 200a,200b: second side plate
310a, 310b: first locking part 410a, 410b: second locking part
420a,420b: open receiving part 430a,430b: upper support piece, lower support piece
500: first locking pin 600: second locking pin
520,620: elastic piece 530,630: stopper
570a,570b: first locking protrusion 670a,670b: second locking protrusion
710,810: guide section 720: departure prevention section
730: 1st tunnel part 830: 2nd tunnel part
900: lower plate

Claims (8)

Lower plate with polygonal sides;
A plurality of side plates rotatably connected to each side of the lower plate;
Including; locking means for maintaining the standing of the first side plate and the second side plate in contact with each other among the plurality of side plates
The locking means,
A first locking pin provided on the first side plate and protruding or not protruding outward as the reciprocating movement in the direction of the second side plate is coupled or separated from the second side plate;
A second locking pin provided on the second side plate and protruding or not protruding outward as the reciprocating movement in the direction of the first side plate is coupled or separated from the first side plate;
A first locking part formed on the first side plate to connect or separate the second locking pin;
A second locking part formed on the second side plate to connect or separate the first locking pin;
A folding-type box including an open receiving part formed on the second side plate and receiving the first locking part, and having an outer side open in the rotation direction of the first side plate. The method according to claim 1,
The first and second locking pins,
An elastic piece formed on the body to reduce or restore a vertical length while moving along the side plate when the first and second locking pins move left and right;
A folding box including a locking protrusion extending from the end of the body to be coupled or separated from the side plate The method according to claim 2,
A locking pin receiving portion protruding from the side plate to accommodate the first and second locking pins; further comprising,
The locking pin receiving part,
A guide piece protruding from the side plate and formed to be inclined upward or downward, and the elastic piece rides and moves when the first and second locking pins move;
Foldable box including a detachment prevention piece protruding from the guide piece and disposed outside the elastic piece The method of claim 3,
The locking pin receiving part,
A folding box further comprising a; tunnel portion formed on the side plate through which the locking protrusion is inserted The method according to claim 1,
A stopper protruding inward is formed on the first and second locking pins,
A stopper receiving groove in which the stopper is accommodated is formed on the side plate,
When the first and second locking pins are moved, the stopper is a folding box that comes into contact with a side surface forming the stopper receiving groove The method according to claim 1,
The second side plate has a support piece formed at the end,
The first side plate is a folding box in which the inner surface of the first locking part is supported by the support piece The method according to claim 1,
In the upper portion of the lower plate are spaced apart from each other at regular intervals, the inner and outer locking projections are formed to form a fitting groove between the intervals,
A folding box in which a fitting protrusion that can be fitted into the fitting groove is formed at the lower portion of the side plate when disposed between the inner locking protrusion and the outer locking protrusion The method according to claim 1,
A first handle is formed on the first locking pin,
A second handle is formed on the second locking pin,
A first handle protruding piece is formed at the end of the first handle,
A second handle protruding piece is formed at the end of the second handle,
A first handle receiving groove in which the first handle protruding piece is accommodated is formed in the first side plate,
The second side plate is a folding-type box in which a second handle receiving groove in which the second handle protruding piece is accommodated is formed

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