JP3112583U - Reinforcement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reinforcing tool that can be attached to various types of boxes and is suitable for stacking boxes.
SOLUTION: A substrate 13 that can be brought into contact with the upper surface of the box 1 and side plates 11 and 12 that can be brought into contact with a side surface of the box 1 are provided. A protrusion 14 is provided as a locking piece that is inserted from the side surface of the box body 1 and is mounted on the box body 1 substantially parallel to the upper surface. The side plates 11 and 12 are coupled at the same angle as the angle formed by the first side surface and the second side surface constituting the corner of the box 1. The upper and lower edges of the side plates 11 and 12 protrude above and below the substrate 13, respectively.
[Selection] Figure 1

Description

  The present invention relates to a reinforcing tool that reinforces a corner by being attached to a corner of the box, and more particularly to a reinforcing tool suitable for stacking boxes.

  For example, when stacking boxes containing articles, a load is applied to the corners, and the corners are easily deformed. Moreover, if the boxes are simply stacked, the steps are easily broken.

  In view of this, as shown in Patent Document 1, a box corner fastening device suitable for stacking is proposed. In this corner fastening device, two side plates are provided on the upper surface of the substrate at right angles to the substrate or at right angles to each other, and are inserted from the upper side into the two side walls constituting the corner of the box on the lower surface of the substrate. A pin is protruded.

  When using the corner fastening device shown in Patent Document 1, the pins are inserted from above into the two side walls of the corner of the box. By doing so, the corners of the box can be fastened, and the upper box can be placed on the upper surface of the substrate while the position of the upper box is restricted by the side plate.

JP-A 63-19907

  However, the corner fastening device described in Patent Document 1 is designed to insert a pin into the side wall of the box body by projecting a pin on the lower surface of the substrate and mounting the pin from above on the box body. It can be used for an open tray-like box, but it cannot be used for a box with a lid or a box whose upper surface is closed. Further, the corner fastening device described in Patent Document 1 has a configuration in which the pin is accommodated within the thickness of the side wall of the box, and thus a box that can be used with a certain thickness required, such as cardboard, for example. The body is limited, and there is a problem that the strength of the box itself is reduced by damaging the side wall of the box.

  In consideration of the above circumstances, the present invention can be mounted on various types of boxes such as a box with a lid or a box whose upper surface is closed, and is a reinforcing tool suitable for stacking boxes. The purpose is to provide.

  A reinforcing tool according to a first aspect of the present invention is a reinforcing tool that is attached to a corner portion of a box, and contacts a substrate that can contact an upper surface or a lower surface of the box, and a side surface of the box. A side plate that can be contacted, and an inner surface of the side plate is provided with a locking piece that is inserted from a side surface of the box substantially parallel to an upper surface or a lower surface of the box and is attached to the box. It is characterized by that.

  According to a second aspect of the present invention, in the device according to the first aspect, the side plate can be brought into contact with each of the first side surface and the second side surface constituting the corner of the box. A first side plate and a second side plate are included, and the first side plate and the second side plate are coupled at the same angle as the angle formed by the first side surface and the second side surface. To do.

  According to a third aspect of the present invention, there is provided the reinforcing tool according to the second aspect, wherein the locking piece is provided on the inner surface of the first side plate and substantially parallel to the second side plate. It is provided.

  According to a fourth aspect of the present invention, there is provided the reinforcing tool according to the third aspect, wherein the gap between the locking piece and the second side plate can be easily attached to the corner of the box. The length is set so as not to be released.

  According to a fifth aspect of the present invention, in the reinforcing device according to any one of the first to fourth aspects, the locking piece is provided substantially parallel to the substrate. It is characterized by.

  According to a sixth aspect of the present invention, there is provided the reinforcing tool according to the fifth aspect of the present invention, wherein the gap between the locking piece and the substrate is not easily released from being attached to the corner of the box. It is characterized by being set to a long length.

  According to a seventh aspect of the present invention, in the reinforcing device according to any one of the first to sixth aspects, the side plate is provided substantially perpendicular to the substrate. It is characterized by.

  A reinforcing tool according to the invention described in claim 8 is characterized in that, in the invention described in any one of claims 1 to 7, the locking piece is formed in a rod shape or a plate shape. To do.

  According to a ninth aspect of the present invention, in the device according to any one of the first to eighth aspects, the side plate has an upper edge and a lower edge on the upper side of the substrate. And projecting downward.

  A reinforcing tool according to a tenth aspect of the present invention is the box according to any one of the first to ninth aspects, wherein the locking piece is inserted into the inner surface of the side plate. An engaging portion that is insertable into a side surface other than the side surface and is formed shorter than the locking piece is provided.

  The reinforcing tool according to the eleventh aspect of the present invention is the reinforcing device according to any one of the first to tenth aspects, wherein the substrate has a convex portion that can be inserted into an upper surface or a lower surface of the box. Is provided.

  According to a twelfth aspect of the present invention, there is provided a reinforcing tool according to any one of the first to eleventh aspects, wherein the reinforcing tool is an integrally molded product of plastic.

  According to the first and seventh aspects of the present invention, the tray is inserted from the side surface of the box substantially parallel to the upper surface (or the lower surface) of the box and is attached to the box. The present invention can be widely applied without any restrictions due to the form of the box, such as a box with a lid, a box with a closed upper surface, or the thickness of the side wall of the box.

  According to the invention of claim 2, since the side plate is brought into contact with the side surface constituting the corner portion of the box body, the reinforcing effect for the corner portion of the box body can be enhanced, and the first side surface and the second side surface can be enhanced. The rigidity of the reinforcing tool itself can be increased since the side surfaces of the reinforcing members are combined.

  According to the invention of claim 3 and claim 4, since the side surface of the box is clamped by the locking piece and the second side plate, the effect of preventing the dropout of the reinforcing tool is improved.

  According to the invention of claim 5 and claim 6, since the side surface of the box is sandwiched between the locking piece and the substrate, the effect of preventing the reinforcing tool from falling off is improved.

  According to the invention of claim 8, since the protrusion is formed in a rod shape or a plate shape, if there is a small hole or a gap in the vertical direction on the box side, it can be easily mounted.

  Since the side plate abuts both the side surface of the stacked lower box body and the side surface of the upper box body, the corner portions of the upper and lower box bodies can be reinforced at the same time, and deformation of the corner portions is prevented. be able to. In addition, the upper boxes can be stacked while restricting the position with the side plates, so that it is difficult to collapse. In addition, the upper box is placed on the substrate that contacts the upper surface of the corner while reinforcing the corner side surface of the box with the side plate, so that the load of the upper box is applied to the upper surface of the lower box. Not only can it be transmitted to the side, but the lower box can receive the load in a distributed manner. Accordingly, the corners of the lower box body are not easily crushed.

  According to the tenth aspect of the present invention, since the engaging portion is inserted from a direction different from the direction in which the locking piece is inserted, the locking piece is prevented from coming off, and the reinforcing tool is further dropped. It becomes difficult. Moreover, since the length of the engaging portion is shorter than the locking piece, it is unlikely to become an obstacle when the locking piece is inserted into the box.

  According to the eleventh aspect of the present invention, since the convex portion to be inserted into the upper surface or the lower surface of the box body is provided on the substrate, the convex portion serves to prevent the locking piece from being pulled out, so that the reinforcing tool is further improved. Is difficult to drop off.

  According to the twelfth aspect of the present invention, since the reinforcing tool is formed of an integrally molded product of plastic, it can be mass-produced at low cost.

Embodiments of the present invention will be described below with reference to the drawings.
<First Embodiment>
1 to 4 are explanatory views of a first embodiment of the present invention. FIG. 1 (a) is a perspective view of the reinforcing tool A as viewed obliquely from above, and FIG. FIG. 2 (a) is a perspective view seen from diagonally above the reinforcing tool B, FIG. 2 (b) is a perspective view seen from diagonally above with the reinforcing tool B turned over, and FIG. FIG. 4 is a perspective view of a main part in a mounted state of the reinforcing tools A and B, and FIGS. 5A to 5D are the reinforcing tools A and B. It is explanatory drawing which shows sequentially the process until the clearance gap (hole) used as insertion object of this protrusion is formed.

  As shown in FIGS. 1 and 2, the reinforcing tools A and B, when mounted on the corners of the box, have a right-angled triangular substrate 13 that contacts the upper surface or the lower surface of the corner of the box, and the substrate 13. A first side plate (side plate 11 in the reinforcing tool A, side plate 12 in the reinforcing tool B) that is joined substantially perpendicularly to two sides (peripheries) that form a right angle and contacts two side surfaces that form the corner of the box, and A second side plate (the side plate 12 in the reinforcing tool B and the side plate 11 in the reinforcing tool B) (hereinafter, the first side plate and the second side plate are also referred to as the side plates 11 and 12). The substrate 13 is joined to an intermediate portion in the height direction of the side plates 11 and 12, and the upper and lower edges of the side plates 11 and 12 protrude from the upper and lower sides of the substrate 13 by a predetermined size. The side plates 11 and 12 are coupled in an L shape in a relationship orthogonal to each other. It is preferable that the reinforcing tools A and B are integrally formed of plastic.

  On the inner surface of the first side plate (the side plate 11 for the reinforcing tool A and the side plate 12 for the reinforcing tool B), the box is substantially parallel to the second side plate (the side plate 12 for the reinforcing tool B and the side plate 11 for the reinforcing tool B). A protrusion 14 is provided as a locking piece to be inserted into a hole (a gap in this example) formed on the side surface of the protrusion. The protrusion 14 is provided substantially in parallel with the substrate 13. As will be described later, the protrusion 14 is formed in a rod shape or a strip shape perpendicular to the substrate 13 with a vertical gap 5 (see FIGS. 3 to 5) formed during assembly of the box lid as a hole to be inserted. It is formed in parallel to the second side plate (the side plate 12 in the reinforcing tool B and the side plate 11 in the reinforcing tool B) on which the protrusions 14 are not formed. On the substrate 13, a punching hole 15 necessary for forming the protrusion 14 is provided.

  Next, the case where the auxiliary tools A and B are used by being attached to the four corners of a box body (for example, a shoe box) 1 with a lid as shown in FIG. 3 will be described.

  First, the box 1 to be mounted will be described. The box 1 is a very commonly used type box, and includes a rectangular box body 2 having an open upper surface and a lid 3 covering the box body 2. The lid 3 is a shallow box shape having a quadrangular top plate portion 3a constituting the upper surface 1a of the box 1 and side plate portions 3b which are connected to the four sides and constitute the upper portion of the side surface 1b of the box 1. belongs to. The side plate portion 3b of the lid body 2 is a portion that covers the outer side of the side plate portion 2b of the box body 2, and a protrusion 14 formed on the reinforcing tools A and B at the mating portion between the adjacent side plate portions 3b and 3b. Vertical gaps (holes) 5 are formed for inserting the.

  The gap 5 is formed by assembling the lid 3 by bending the material according to the procedure shown in FIGS. Briefly, for example, the developed material 3M integrally includes four bent pieces 3m and 3n constituting the side plate portion 3b on four sides of the rectangular top plate portion 3a. The bent pieces 3n (or 3m) facing each other across the top plate portion 3a have the same shape. An insertion protrusion (folding piece) 3p projects from the end of one of the adjacent bent pieces 3n and 3m. Further, the other folded piece 3m is formed by continuously forming a first-stage folded piece 3s and a second-stage folded piece 3t, and can be folded in two. Yes.

  As shown in FIG. 5A, in order to assemble the lid 3, one bent piece 3n is bent at a right angle with respect to the top plate portion 3a, and the insertion protrusion 3p is bent inward as indicated by an arrow Y1. Next, as shown by an arrow Y2 in FIG. 5B, the first folding piece 3s of the other folding piece 3m is bent with respect to the top plate portion 3a, and the first folding piece 3s is bent. The second-stage folded piece 3t is further bent, and the second-stage folded piece 3t is bent toward the inside of the insertion protrusion 3p.

  Then, as shown in FIG. 5C, the first-stage folded piece 3s is folded at a right angle with respect to the top plate portion 3a, and the second-stage folded piece 3t is folded inside. By doing so, as shown in FIG. 5 (d), the insertion protrusion 3p is sandwiched between the first-stage folded piece 3s and the second-stage folded piece 3t. The side plate portion 3b is formed, and a shallow box-shaped lid 3 is completed.

  When assembled in this way, a vertical gap 5 that is slightly visible from the outside is formed between the first-stage folded piece 3s and the insertion protrusion 3p. Therefore, in this embodiment, the gap 5 that is inevitably generated when the lid 3 is assembled is used as a hole for inserting the protrusions 14 of the reinforcing tools A and B, and the positions of the protrusions 14 The dimensions are designed.

  In order to mount the reinforcing tools A and B, the reinforcing tools A and B corresponding to the respective corners of the box 1 are selected in accordance with the direction in which the gap 5 faces, and are respectively mounted from the side. As shown in FIG. 4, the protrusion 14 is inserted into the gap (hole) 5 from the side, and the substrate 13 is brought into contact with the upper surface 1a of the box 1 (the top plate portion 3a of the lid 3). 12 is brought into contact with two side surfaces 1b (side plate portions 3b of the lid 3) constituting the corners of the box 1. By doing so, the corners can be reinforced.

  That is, since the side plates 11 and 12 are in contact with the two side surfaces 1b of the stacked lower box 1 and the two side surfaces 1b of the upper box 1, the corners of the upper and lower boxes 1 are simultaneously reinforced. And the deformation of the corners can be prevented. In addition, the upper boxes 1 can be stacked while the positions of the side plates 11 and 12 are restricted.

  In addition, since the side surface of the box is sandwiched between the projection 14 and the second side plate and the side surface of the box is sandwiched between the projection 14 and the substrate 13, the effect of preventing the dropout of the reinforcing tool is improved. In addition, while reinforcing the corner side surface of the box 1 with the two side plates 11, 12, the upper box 1 is placed on the substrate 13 in contact with the upper surface of the corner, so the upper box 1 Can be transmitted not only to the upper surface 1a of the lower box 1 but also to the side surface 1b, so that the lower box 1 can receive the load in a distributed manner. Accordingly, the corners of the lower box 1 are not easily crushed.

  Further, a protrusion 14 is provided on the inner surface of the side plates 11 and 12 on one side, and the protrusion 14 is inserted into a hole (gap 5) formed on the side surface of the box 1, so that the protrusion 14 and the hole (gap) The corner reinforcements A and B can be reliably prevented from falling off by the frictional engagement force at the periphery. In this case, since the reinforcing tools A and B are mounted while inserting the protrusion 14 into the hole (gap 5) from the horizontal direction with respect to the box body 1, it is easily mounted on the box body 1 with a lid. it can.

  Further, since the reinforcing tools A and B join the side plates 11 and 12 in an L shape, the rigidity of the reinforcing tools A and B themselves can be increased and the reinforcing effect on the corners of the box 1 can be enhanced. Can do. In addition, as long as the side plates 11 and 12 are arranged at an angle corresponding to the corners of the box, even if they are not necessarily coupled (even if the side plates 11 and 12 are separated), a certain degree of reinforcement effect and prevention of stepping are prevented. An effect can be obtained.

  Further, in this case, the protrusions 14 of the reinforcing tools A and B can be inserted into the gap 5 that can be formed in the lid 3 of the box 1, so that they are attached to the box 1 without any special holes. Can be mounted without damaging the box 1. Further, since the reinforcing tools A and B are made of an integrally molded product of plastic, they can be provided at low cost by mass production.

In addition, although this embodiment demonstrated the case where the protrusion 14 of the reinforcement tools A and B was inserted in the clearance gap 5 which can be produced on the lid 3 for convenience of manufacture, another hole is provided in the side surface 1b of the box 1. Of course, the protrusion 14 may be inserted.
<Second and Third Embodiments>
6 and 7 are explanatory views of the second embodiment of the present invention. FIG. 6 (a) is a perspective view of the reinforcing tool C as viewed from obliquely above, and FIG. 6 (b) is a diagram showing the reinforcing tool C turned upside down. FIG. 7 is a perspective view seen from diagonally above, FIG. 7 is a perspective view seen from diagonally above the reinforcing tool D, and (b) is a perspective view seen from diagonally above with the reinforcing tool D turned over. 8 and 9 are explanatory views of the third embodiment of the present invention. FIG. 8 (a) is a perspective view of the reinforcing tool E as viewed from diagonally above, and FIG. FIG. 9 is a perspective view of the reinforcing tool F viewed from diagonally above. FIG. 9B is a perspective view of the reinforcing tool F viewed from diagonally above. FIG. 10 is a perspective view showing an example of attaching the reinforcing tools C, D, E, and F to the drawer-type box.

  The reinforcement tools C and D of 2nd Embodiment are demonstrated. As shown in FIGS. 6 and 7, it is preferable that the corner reinforcing tools C and D are integrally formed of plastic in the same manner as the above-described reinforcing tools A and B, and are attached to the corners of the box. When this is done, the right-angled triangular substrate 13 abutting on the upper or lower surface of the corner of the box and the two sides (peripheries) forming the right angle of the substrate 13 are joined substantially perpendicularly to form the corner of the box. A first side plate (a side plate 11 for the reinforcing tool C, a side plate 12 for the reinforcing tool D) and a second side plate (the side plate 12 for the reinforcing tool C, and the side plate 11 for the reinforcing tool D) that are in contact with the two side surfaces ( Hereinafter, the first side plate and the second side plate are also referred to as side plates 11 and 12). The substrate 13 is joined to an intermediate portion in the height direction of the side plates 11 and 12, and the upper and lower edges of the side plates 11 and 12 protrude from the upper and lower sides of the substrate 13 by a predetermined size. The side plates 11 and 12 are coupled in an L shape in a relationship orthogonal to each other.

  On the inner surface of the first side plate (the side plate 11 for the reinforcing tool C and the side plate 12 for the reinforcing tool D), the box is substantially parallel to the second side plate (the side plate 12 for the reinforcing tool C and the side plate 11 for the reinforcing tool D). A protrusion 24 is provided as a locking piece to be inserted into a hole formed on the side surface. The protrusion 24 is provided substantially in parallel with the substrate 13. The protrusion 24 is formed in a flat plate shape parallel to the substrate 13. Also, the second side plate (side plate 12 for the reinforcing tool C, side plate 11 for the reinforcing tool D) is different from the first side plate (the side plate 11 for the reinforcing tool C and the side plate 12 for the reinforcing tool D) from which the protrusions 24 are projected. A small protrusion 26 as an engaging portion having a length shorter than that of the protrusion 24 is provided on the inner surface of the protrusion. On the substrate 13, punch holes 25 and 27 necessary for forming these protrusions 24 and small protrusions 26 are provided.

  Next, the reinforcing tools E and F of the third embodiment will be described. As shown in FIGS. 8 and 9, the reinforcing tools E and F are preferably integrally formed of plastic, like the above-described reinforcing tools A, B, C and D, and the corners of the box. When mounted on the board, it is joined substantially perpendicularly to the right-angled triangular substrate 13 that contacts the upper surface or the lower surface of the corner of the box and the two sides (peripheries) forming the right angle of the substrate 13 to form the corner of the box A first side plate (side plate 11 for the reinforcing tool E, side plate 12 for the reinforcing tool F) and a second side plate (the side plate 12 for the reinforcing tool E, and the side plate 11 for the reinforcing tool F). (Hereinafter, the first side plate and the second side plate are also referred to as side plates 11 and 12). The substrate 13 is joined to an intermediate portion in the height direction of the side plates 11 and 12, and the upper and lower edges of the side plates 11 and 12 protrude from the upper and lower sides of the substrate 13 by a predetermined size. The side plates 11 and 12 are coupled in an L shape in a relationship orthogonal to each other.

  On the inner surface of the first side plate (the side plate 11 for the reinforcing tool E and the side plate 12 for the reinforcing tool F), the box is substantially parallel to the second side plate (the side plate 12 for the reinforcing tool E and the side plate 11 for the reinforcing tool F). A protrusion 28 as a locking piece to be inserted into a hole formed on the side surface of the projection is provided. The protrusion 28 is formed in a flat plate shape parallel to the substrate 13 and protrudes with a short dimension. Further, on the lower surface of the substrate 13, a small convex portion 30 having a cubic shape that fits into a hole formed on the upper surface of the box is projected. The convex part 30 and the protrusion 28 are arranged at a position where they do not overlap when viewed in the vertical direction. On the substrate 13, a die-cutting hole 29 necessary for forming the protrusion 28 is provided.

  Next, when the reinforcing tools C and D of the second embodiment and the reinforcing tools E and F of the third embodiment are mounted on the four corners of the pull-out box 50 as shown in FIG. Will be described.

  The drawer-type box body 50 has a front surface 50a opened and a rear surface 50b closed, and a drawer 51 can be taken in and out from the opening of the front surface 50a. The box 50 is a rectangular tube having a top plate 50c, a bottom plate 50d, and left and right side plates 50e, 50f, and is formed by folding and assembling cardboard or cardboard. An annular end wall 50g having a slight width formed by bending the material into a bag shape is secured at the peripheral edge of the opening of the front surface 50a.

  In the box 50, the reinforcing plates C to D are attached to the side plates 50e, 50f, the end wall 50g, and the top plate 50d so that the reinforcing tools C, D, E, and F respectively corresponding to the four corners on the upper side can be mounted. Holes 61c, 61d, 62c, 62d, 63e, 63f, 64e, and 64f for inserting the F protrusions 24, 26, and 28 and the convex portion 30 are provided.

  The side plates 50e, 50f, the end wall 50g, and the rear wall 50b are portions that form the side surfaces of the box body 50, and the holes 61c, 61d, 62c, 62d, 63e, 63f provided at these locations include: The protrusions 24, 26, and 28 of the reinforcing tools C to F are inserted. Moreover, the top plate 50c is a part which forms the upper surface of the box 50, and the convex portions 30 of the reinforcing tools E and F are fitted in the holes 64e and 64f provided here.

  The reinforcing tools C to F are selected corresponding to the positions of the corners of the box 50. When viewed from the front (end wall 50g), the reinforcing tool C is attached to the right front corner, and the reinforcing tool D is attached to the left front corner. Further, a reinforcing tool E is attached to the left rear corner, and a reinforcing tool F is attached to the right rear corner.

  Specifically, when mounting the reinforcing tool C on the right front corner as viewed from the front (end wall 50g), the reinforcing tool C is mounted almost horizontally from the right side to the left, and the protrusion 24 is connected to the side plate. The small protrusion 26 is inserted into the hole 61c of the end wall 50g while being inserted into the hole 62c of 50f. Here, since the small protrusion 26 has a small protrusion amount, it can be easily fitted into the hole 61c. Thereby, the side plates 11 and 12 of the reinforcing tool C can be brought into contact with the side plate 50f and the end wall 50g of the box 5, and the substrate 13 can be brought into contact with the top plate 50c.

  Similarly, when mounting the reinforcing tool D at the left front corner as viewed from the front (end wall 50g), the reinforcing tool D is mounted almost horizontally from the left side toward the right side, and the protrusion 24 is inserted into the hole of the side plate 50e. The small protrusion 26 is inserted into the hole 61d of the end wall 50g while being inserted into 62d. Thereby, the side plates 11 and 12 of the reinforcing tool D can be brought into contact with the side plate 50e and the end wall 50g of the box 5, and the substrate 13 can be brought into contact with the top plate 50c.

  Next, when mounting the reinforcing tool E on the left rear corner of the box body 50, the reinforcing tool E is mounted almost horizontally from the left side toward the right, and the protrusion 28 is inserted into the hole 63e of the side plate 50e. At the same time, the convex portion 30 is inserted into the hole 64e of the top plate. Thereby, the both side plates 11 and 12 of the reinforcing tool E are brought into contact with the side plate 50e and the wall of the rear surface 50b (corresponding to the side surface of the box 50), and the substrate 13 is brought into contact with the top plate 50c. Can do. Also in this case, since the protruding amount of the convex portion 30 is small and is disposed at a position that does not overlap the protrusion 28, it can be easily fitted into the hole 64e. Further, if the protrusion 28 and the convex portion 30 are fitted in the holes 63e and 64e while the reinforcement tool E is inclined, the reinforcement tool E can be easily attached.

  Similarly, when attaching the reinforcing tool F to the right rear corner, the reinforcing tool F is mounted almost horizontally from the right side to the left, and the protrusion 28 is inserted into the hole 63f of the side plate 50f, and the convex portion 30 is inserted into the hole 64f of the top plate. Thus, the side plates 11 and 12 of the reinforcing member F are brought into contact with the side plate 50f and the rear surface 50b of the box 5 (corresponding to the side of the box 50), and the substrate 13 is brought into contact with the top plate 50c. Can do. Also in this case, if the protrusion 28 and the convex part 30 are fitted in the holes 63f and 64f while the reinforcing tool F is inclined, the reinforcing tool E can be easily mounted.

  As described above, by attaching the reinforcing tools C, D, E, and F corresponding to the four corners, the corners of the box body 50 can be reinforced, and even when stacked, the collapse is prevented. The same effects as those of the first embodiment can be obtained.

  In particular, in the case of the reinforcing tools C and D of the second embodiment, since the protrusions 24 are formed in a flat plate shape parallel to the substrate 13, the load of the upper box 50 is not limited to the substrate 13, but the large protrusions 24. Can be transmitted to the lower box 50, and a load dispersion effect can be obtained. Moreover, even if the protrusion 24 protrudes inside the box 50, it becomes difficult to become obstructive because the protrusion 24 is flat.

  In addition, in the reinforcing tools C to F of the second and third embodiments, in addition to the main protrusions 24 and 28, other small protrusions 26 and convex portions 30 are provided, so that the reinforcing tools C to F are prevented from falling off. Can be fulfilled more effectively.

  In each of the above-described embodiments, the case where the reinforcing tools A to F are attached to the upper corners of the box has been shown, but the same applies even if the reinforcing tools A to F are attached to the lower corners. An effect can be obtained. Moreover, although the thing of the substantially rectangular parallelepiped was demonstrated as a box, For example, it is chamfered in a height direction and it is applicable also to planar view, an octagonal box, etc. In addition, the side plate is not limited to a plan view, and the first side plate and the second side plate are coupled in an L shape, and the first side plate and the second side plate form a third side plate. The structure may be such that the first side surface and the second side surface of the box are coupled at the same angle.

It is explanatory drawing of 1st Embodiment of this invention, (a) is the perspective view which looked at the reinforcement tool A from diagonally upward, (b) is the perspective view which turned the reinforcement tool A over and was seen from diagonally upward. . (A) is the perspective view seen from diagonally upward of the reinforcement tool B, (b) is the perspective view which turned the reinforcement tool B over and was seen from diagonally upward. It is a perspective view which shows the example of mounting | wearing with the reinforcing tools A and B to a box. It is a disassembled perspective view of the principal part of FIG. (A) thru | or (d) are explanatory drawings which show order for the process until the clearance gap (hole) used as the insertion object of the protrusion of the reinforcement tools A and B is formed later on. It is explanatory drawing of 2nd Embodiment of this invention, (a) is the perspective view which looked at the reinforcement tool C from diagonally upward, (b) is the perspective view which turned the reinforcement tool C upside down and was seen from diagonally upward. . (A) is the perspective view seen from diagonally upward of the reinforcement tool D, (b) is the perspective view which turned over the reinforcement tool D and was seen from diagonally upward. It is explanatory drawing of 3rd Embodiment of this invention, (a) is the perspective view which looked at the reinforcement tool E from diagonally upward, (b) is the perspective view which turned the reinforcement tool E upside down and was seen from diagonally upward. . (A) is the perspective view seen from diagonally upward of the reinforcement tool F, (b) is the perspective view which turned the reinforcement tool F upside down and was seen from diagonally upward. It is a perspective view which shows the example of mounting | wearing with the reinforcement tools C, D, E, and F to a drawer-type box.

Explanation of symbols

A to F Reinforcing tool 1 Box 1a Upper surface 1b Side surface 3 Lid 3p Insertion protrusion (Folding piece)
3s folded piece 5 gap (hole)
11 Side plate 12 Side plate 13 Substrate 14 Protrusion (locking piece)
24 Protrusion (locking piece)
26 Small protrusion (engagement part)
28 Protrusion (locking piece)
30 convex part 50 box 50c Top plate (upper surface)
50b Rear (side)
50e, 50f Side plate (side)
50g end wall (side)
61c, 61d, 62c, 62d, 63e, 63f, 64e, 64f hole

Claims (12)

Reinforcing tool attached to the corner of the box,
A substrate that can contact the upper surface or the lower surface of the box, and a side plate that can contact the side surface of the box;
The reinforcing member according to claim 1, wherein a locking piece that is inserted from a side surface of the box body and is attached to the box body is provided on an inner surface of the side plate substantially parallel to an upper surface or a lower surface of the box body.   The side plate includes a first side plate and a second side plate that can abut on a first side surface and a second side surface, respectively, constituting a corner of the box, and the first side plate and the second side plate The reinforcing plate according to claim 1, wherein the side plates are coupled at the same angle as the angle formed by the first side surface and the second side surface.   The reinforcing member according to claim 2, wherein the locking piece is provided on an inner surface of the first side plate and substantially parallel to the second side plate.   4. The reinforcement according to claim 3, wherein a gap between the locking piece and the second side plate is set to a length that does not easily release the mounting state to the corner of the box. Ingredients.   The reinforcing tool according to any one of claims 1 to 4, wherein the locking piece is provided substantially parallel to the substrate.   6. The reinforcing tool according to claim 5, wherein a gap between the locking piece and the substrate is set to a length such that the mounting state of the box body at the corner is not easily released.   The reinforcing member according to any one of claims 1 to 6, wherein the side plate is provided substantially perpendicularly to the substrate.   The reinforcing member according to any one of claims 1 to 7, wherein the locking piece is formed in a bar shape or a plate shape.   9. The reinforcing tool according to claim 1, wherein an upper edge and a lower edge of the side plate protrude from an upper side and a lower side of the substrate, respectively.   An inner surface of the side plate is provided with an engaging portion that can be inserted into a side surface other than the side surface of the box body into which the locking piece is inserted and is shorter than the locking piece. The reinforcing tool according to any one of claims 1 to 9, wherein the reinforcing tool is any one of claims 1 to 9.   The reinforcing member according to any one of claims 1 to 10, wherein the substrate is provided with a protrusion that can be inserted into an upper surface or a lower surface of the box. The reinforcing tool according to any one of claims 1 to 11, wherein the reinforcing tool is an integrally molded product of plastic.

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