JP3236855U - Connection structure of cardboard assembly - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connecting structure of a corrugated cardboard assembly which suppresses a decrease in strength of a first corrugated cardboard body and suppresses a change in posture of a second corrugated cardboard body with respect to the first corrugated cardboard body. SOLUTION: A first corrugated cardboard body 10 having a first plane 10B and a second corrugated cardboard body 20 having a second plane 36A arranged so as to be orthogonal to the first plane are connected to a cardboard connecting member 50. It is a connecting structure of a corrugated cardboard assembly for connecting with. The corrugated cardboard connecting member is housed in a recess formed in the first plane of the first corrugated cardboard body, and has a first plate-shaped portion joined to the first corrugated cardboard body and a second corrugated cardboard body. A second plate-shaped portion 54, which is joined to the second plane and whose one end surface on the side of the first corrugated cardboard is arranged so as to be in contact with a region in the vicinity of the recess in the first plane, and a second It is provided with a connecting portion that connects the exposed side surface of the plate-shaped portion 1 and the exposed surface of the second plate-shaped portion. [Selection diagram] Fig. 1

Description

The techniques disclosed herein relate to the articulated structure of a corrugated cardboard assembly.

Conventionally, a corrugated cardboard assembly configured by connecting a plurality of corrugated cardboard bodies has been known. For example, a first cardboard desk (for example, Patent Document 1) in which a top plate is arranged on the upper surface of a frame that functions as a desk leg, or a through hole formed in a side wall that functions as a desk leg. A second cardboard desk (for example, Patent Document 2) is known in which a convex portion protruding from the outer periphery of the inlay plate is inserted and fixed.

Utility Model Registration No. 3225422 Japanese Unexamined Patent Publication No. 2006-223702

However, in the above-mentioned first cardboard desk, the connecting structure between the top plate and the frame is unknown, and the posture of the frame with respect to the top plate may change easily. Further, in the above-mentioned second cardboard desk, since it is fixed by insertion, the connection strength between the side wall body and the inlay plate is weak, and the inlay plate may be easily displaced with respect to the side wall body. Therefore, there was room for improvement in the connecting structure of the corrugated cardboard assembly. It should be noted that such a problem is common not only to desks but also to various cardboard assemblies used for other purposes.

This specification discloses a technique capable of solving at least a part of the above-mentioned problems.

The techniques disclosed herein can be realized in the following forms.

(1) The connecting structure of the corrugated cardboard assembly disclosed in the present specification has a first corrugated cardboard body having a first plane and a second plane arranged so as to be orthogonal to the first plane. It is a connecting structure of a cardboard assembly for connecting a second cardboard body with a cardboard connecting member, and the cardboard connecting member is formed in a recess formed in the first plane of the first cardboard body. While being accommodated, it is joined to the first plate-shaped portion joined to the first corrugated cardboard body and the second plane surface of the second corrugated cardboard body, and one end surface on the side of the first corrugated cardboard body. However, in the first plane, a second plate-shaped portion arranged so as to be in contact with a region near the recess, an exposed surface of the first plate-shaped portion, and the second plate. It is provided with a connecting portion that connects the exposed side surface of the shaped portion.

In the connecting structure of the corrugated cardboard assembly, one end surface of the second plate-shaped portion of the corrugated cardboard connecting member is in contact with the region near the recess in the first plane of the first corrugated cardboard body. Therefore, the second plate-shaped portion is less likely to be displaced with respect to the first plane of the first corrugated cardboard body. Further, by accommodating the first plate-shaped portion in the recess of the first cardboard body, the portion where the recess of the first cardboard body is formed is reinforced. As described above, according to the connection structure of the present corrugated cardboard assembly, it is possible to suppress both the decrease in the strength of the first corrugated cardboard body and the suppression of the posture change of the second corrugated cardboard body with respect to the first corrugated cardboard body. ..

(2) In the connecting structure of the corrugated cardboard assembly, the second plate-shaped portion of the corrugated cardboard connecting member may be detachably joined to the second plane of the second corrugated cardboard body. good. According to the connecting structure of the present corrugated cardboard assembly, the first corrugated cardboard body and the second corrugated cardboard body can be attached to and detached from each other, while suppressing the decrease in strength of the first corrugated cardboard body and the second cardboard body with respect to the first corrugated cardboard body. It is possible to suppress the change in the posture of the cardboard body at the same time.

(3) In the connecting structure of the corrugated cardboard assembly, the second corrugated cardboard body has a pair of the second planes facing in different directions, and each of the pair of second planes has a pair of second planes. , It may be configured to be connected to the first corrugated cardboard body via the corrugated cardboard connecting member. According to the connecting structure of the present corrugated cardboard assembly, it is possible to effectively suppress the posture change of the second corrugated cardboard body with respect to the first corrugated cardboard body.

(4) In the connecting structure of the corrugated cardboard assembly, at least a part of the outer peripheral surface of the first plate-shaped portion of the corrugated cardboard connecting member forms the recess in the first corrugated cardboard body. It may be configured to be in contact with at least a part of the inner peripheral surface. According to the connecting structure of the present corrugated cardboard assembly, the positional deviation of the corrugated cardboard connecting member with respect to the first corrugated cardboard body is suppressed, so that the posture change of the second corrugated cardboard body with respect to the first corrugated cardboard body is effectively suppressed. Can be done.

The technique disclosed in the present specification can be realized in various forms, for example, in the form of a connecting structure of a corrugated cardboard assembly, a corrugated cardboard assembly, a method for manufacturing the same, and the like. ..

Front view showing the external configuration of the desk 100 in this embodiment Side view showing the external configuration of the desk 100 Explanatory drawing showing the structure of the lower surface 10B side of the top plate 10 and the corrugated cardboard connecting member 50. Explanatory drawing which shows the connection structure of the desk 100 of this embodiment and the desk 100X of a comparative example.

A. Embodiment:
A-1. Desk 100 configuration:
FIG. 1 is a front view showing the external configuration of the desk 100 in the present embodiment. FIG. 1 shows XYZ axes that are orthogonal to each other to specify the direction. In the present specification, for convenience, the Z-axis positive direction is referred to as an upward direction, the Z-axis negative direction is referred to as a downward direction, the X-axis positive direction is referred to as a right direction, the X-axis negative direction is referred to as a left direction, and Y. The positive axis direction (back direction of the paper) is called the rear direction, and the negative Y-axis direction (front direction of the paper) is the front direction, but the desk 100 is actually installed in a direction different from that direction. May be good. The same applies to FIGS. 2 and later.

The desk 100 is a cardboard desk composed of a plurality of cardboard bodies. Specifically, as shown in FIGS. 1 and 2, the desk 100 includes a top plate 10, legs 20, and a pair of corrugated cardboard connecting members 50. The desk 100 is an example of a cardboard assembly within the scope of the utility model registration claim, the top plate 10 is an example of the first cardboard body within the scope of the utility model registration claim, and the leg body 20 is an example of the utility model registration request. It is an example of the second cardboard body in the range of.

Each member (top plate 10, legs 20, cardboard connecting member 50) constituting the desk 100 is formed of, for example, one or a plurality of corrugated cardboard plates. In the present embodiment, each member constituting the desk 100 is formed of a 2A (two-layer) corrugated cardboard plate formed by superimposing and joining two corrugated cardboard plates.

A-1-1. Configuration of top plate 10:
The top plate 10 is a rectangular flat plate-shaped cardboard body. FIG. 3 is an explanatory view showing the configuration of the top plate 10 and the corrugated cardboard connecting member 50 on the lower surface 10B side. In FIG. 3, one of the pair of corrugated cardboard connecting members 50 is separated from the top plate 10. The lower surface 10B of the top plate 10 is an example of the first plane in the scope of the utility model registration claim.

As shown in FIG. 3, a pair of recesses 15 are formed on the lower surface 10B of the top plate 10. The pair of recesses 15 are formed on both the left and right sides of the lower surface 10B, respectively. Each recess 15 has a rectangular shape when viewed in the vertical direction (Z-axis direction). In this embodiment, each recess 15 has a pair of facing inner peripheral surfaces 13A and 13A facing in the front-rear direction (Y-axis direction) and a central inner peripheral surface 14A located on the central side of the top plate 10. It is defined by, and the end face side of the top plate 10 is open.

Specifically, the top plate 10 includes a first top plate constituent member 13 and a second top plate constituent member 14. The first top plate constituent member 13 is a member that constitutes the upper surface 10A of the top plate 10, and has a structure in which a pair of side surfaces parallel to each other of the rectangular corrugated cardboard plates are folded back. The second top plate constituent member 14 is a flat corrugated cardboard plate, and is arranged on the back surface side of the first top plate constituent member 13 between the folded portions of the first top plate constituent member 13. The upper surface of the second top plate constituent member 14 is bonded to the lower surface of the first top plate constituent member 13 with an adhesive. Both end faces in the left-right direction (X-axis direction) of the second top plate constituent member 14 are located inside the both end faces in the left-right direction of the first top plate constituent member 13. As a result, recesses 15 are formed on both sides of the lower surface 10B of the top plate 10 in the left-right direction. The paper width direction of the first top plate constituent member 13 and the paper width direction of the second top plate constituent member 14 are orthogonal to each other in the vertical view (see FIG. 4A). Therefore, as compared with the configuration in which the paper width direction of the first top plate constituent member 13 and the paper width direction of the second top plate constituent member 14 are in the same direction, the generation of warpage of the top plate 10 is suppressed and the strength is increased. Can be planned.

A-1-2. Composition of leg 20:
As shown in FIGS. 1 and 2, the leg body 20 includes a side wall 30 and an inlay plate 40. The side wall 30 has a back wall 32, a pair of front walls 34, and a pair of connecting walls 36. The back wall 32 is a rectangular side wall located on the back side of the top plate 10. The pair of front walls 34 are rectangular side walls arranged apart from each other in the left-right direction (X-axis direction) on the front side of the top plate 10. The pair of connecting walls 36 are located on both sides of the top plate 10 in the left-right direction, and are side walls that connect both ends of the front wall 34 and the pair of front walls 34, respectively. In the present embodiment, the side wall 30 is formed by bending a single corrugated cardboard plate.

The inlay plate 40 is arranged inside the side wall 30. A pair of protrusions 42 are formed on the left and right sides of the front end surface of the inlay plate 40, and each protrusion 42 is inserted into a through hole 38 formed in each front wall 34 (see FIG. 3). Further, a protruding portion (not shown) is formed on the rear end surface of the inlay plate 40, and this protruding portion is inserted into a through hole (not shown) formed in the back wall 32. As a result, the inlay plate 40 is fixed to the side wall 30. The outer surface 36A of each connecting wall 36 is an example of a second plane within the scope of the utility model registration claim.

A-1-3. Configuration of cardboard connecting member 50:
The corrugated cardboard connecting member 50 includes a first plate-shaped portion 52, a second plate-shaped portion 54, and a connecting portion 56. Note that FIG. 3 shows a state in which the second plate-shaped portion 54 is arranged so as to be inclined with respect to the first plate-shaped portion 52.

The first plate-shaped portion 52 is housed in the recess 15 of the top plate 10 and is joined to the top plate 10. Specifically, the first plate-shaped portion 52 is a rectangular cardboard plate having substantially the same size as the recess 15. The upper surface of the first plate-shaped portion 52 is detachably joined to the bottom surface of the recess 15 of the top plate 10 by an adhesive. Of the first plate-shaped portion 52, the end surface on the second plate-shaped portion 54 side faces and is in contact with the central inner peripheral surface 14A of the top plate 10. Each of the end faces of the first plate-shaped portion 52 in the front-rear direction (Y-axis direction) faces and is in contact with the facing inner peripheral surface 13A of the top plate 10. As a result, the cardboard connecting member 50 is prevented from being displaced in the left-right direction and the front-back direction with respect to the top plate 10.

The second plate-shaped portion 54 is joined to the outer surface 36A of the leg body 20, and one end surface on the top plate 10 (first plate-shaped portion 52) side is concave among the lower surface 10B of the top plate 10. It is arranged so as to be in contact with the vicinity region of the place 15. Specifically, the second plate-shaped portion 54 is a rectangular cardboard plate. In the present embodiment, each corner portion 54A on the tip end side of the second plate-shaped portion 54 is chamfered (C chamfered) in an arc shape (see FIG. 2). The second plate-shaped portion 54 is detachably joined to the outer surface 36A. In the present embodiment, the facing surface of the second plate-shaped portion 54 and the outer surface 36A is detachably joined by Velcro (registered trademark) 37, 58 (FIG. 3 and FIG. 4 (A) described later. )reference). If it is removable, a joining method other than the magic tape may be applied.

The connecting portion 56 connects the exposed surface of the first plate-shaped portion 52 and the exposed surface of the second plate-shaped portion 54. In the present embodiment, the connecting portion 56 is a front liner that is continuously connected from the first plate-shaped portion 52 to the second plate-shaped portion 54. The first plate-shaped portion 52 and the second plate-shaped portion 54 are separated from each other and are composed of a middle shin and a back liner, respectively.

A-2. Effect of this embodiment:
As described above, in the top plate 10 according to the present embodiment, one end surface (upper end surface 54A) of the second plate-shaped portion 54 of the corrugated cardboard connecting member 50 is in the vicinity of the recess 15 on the lower surface 10B of the top plate 10. It is in contact with region 10C (see FIG. 4A). Therefore, the second plate-shaped portion 54 is less likely to be displaced with respect to the lower surface 10B of the top plate 10. Further, the portion where the recess 15 of the top plate 10 is formed is reinforced by accommodating the first plate-shaped portion 52 in the recess 15 of the top plate 10. As described above, according to the present embodiment, it is possible to suppress both the decrease in the strength of the top plate 10 and the suppression of the posture change of the leg body 20 with respect to the top plate 10.

FIG. 4 is an explanatory diagram showing a connection structure between the desk 100 of the present embodiment and the desk 100X of the comparative example. FIG. 4A shows a part of the connecting structure of the desk 100 of the present embodiment, and FIG. 4B shows a part of the connecting structure of the desk 100X of the comparative example. ..

As shown in FIG. 4B, the desk 100X of the comparative example includes a plate-shaped portion 54X and a connecting portion 56X instead of the corrugated cardboard connecting member 50. The plate-shaped portion 54X is detachably joined to the outer surface 36A of the side wall 30 via the magic tapes 37 and 58. The connecting portion 56X connects the plate-shaped portion 54X and the second top plate constituent member 14. The connecting portion 56X is a plate-shaped portion 54X in which a liner on the side facing the outer surface 36A and a liner on the lower side of the second top plate component 14 are continuously connected. The upper end surface 54A of the plate-shaped portion 54X does not face the lower surface 10B of the top plate 10, but faces the bottom surface of the recess 15, and is separated from the bottom surface. Therefore, the plate-shaped portion 54X is easily displaced with respect to the top plate 10, and is easily damaged by the displacement, for example. Further, since the recess 15 of the top plate 10 remains hollow, the thickness of the portion where the recess 15 of the top plate 10 is formed is thin and the strength is low.

On the other hand, as shown in FIG. 4A, in the desk 100 of the present embodiment, the upper end surface 54A of the second plate-shaped portion 54 of the cardboard connecting member 50 is a recess on the lower surface 10B of the top plate 10. It is in surface contact with the vicinity region 10C of 15. Therefore, the second plate-shaped portion 54 is unlikely to be displaced with respect to the lower surface 10B of the top plate 10. Further, since the first plate-shaped portion 52 is housed in the recess 15 of the top plate 10, the portion where the recess 15 of the top plate 10 is formed is reinforced. Moreover, since the lower surface of the first plate-shaped portion 52 is flush with the lower surface 10B of the top plate 10, the design is high.

In the present embodiment, the second plate-shaped portion 54 of the corrugated cardboard connecting member 50 is detachably joined to the outer surface 36A of the side wall 30. As a result, according to the present embodiment, the top plate 10 and the leg body 20 can be attached to and detached from each other, while suppressing the decrease in the strength of the top plate 10 and suppressing the change in the posture of the leg body 20 with respect to the top plate 10. can do.

In this embodiment, as shown in FIG. 1, the side wall 30 has a pair of outer surfaces 36A (right surface 36A and left surface 36A) facing in different directions. Each of the pair of outer surfaces 36A is connected to the top plate 10 via a cardboard connecting member 50. Thereby, according to the present embodiment, the posture change of the leg body 20 with respect to the top plate 10 can be effectively suppressed.

In the present embodiment, at least a part of the outer peripheral surface of the first plate-shaped portion 52 of the corrugated cardboard connecting member 50 is in contact with at least a part of the inner peripheral surface forming the recess 15 in the top plate 10. .. Specifically, as shown in FIGS. 3 and 4A, the end surface of the first plate-shaped portion 52 on the side of the second plate-shaped portion 54 is the inner peripheral surface 14A on the center side of the top plate 10. Facing and in surface contact with. Therefore, the positional deviation of the cardboard connecting member 50 with respect to the top plate 10 in the left-right direction (X-axis direction) is suppressed. Further, each of the end faces of the first plate-shaped portion 52 in the front-rear direction (Y-axis direction) faces the facing inner peripheral surface 13A of the top plate 10 and is in surface contact with each other. Therefore, the displacement of the cardboard connecting member 50 with respect to the top plate 10 in the front-rear direction is suppressed.

B. Modification example:
The techniques disclosed herein are not limited to the embodiments described above and in the drawings, and include, for example, various embodiments such as:

The configuration of the desk 100 in the above embodiment is merely an example and can be variously modified. In the above embodiment, the desk 100 is configured to include a pair of corrugated cardboard connecting members 50, but may be configured to include one or three or more corrugated cardboard connecting members 50. The recess 15 of the top plate 10 may be configured such that the end face side of the top plate 10 is not open and is closed. The first plate-shaped portion 52 may be detachably joined to the bottom surface of the recess 15.

In the above embodiment, the second plate-shaped portion 54 of the corrugated cardboard connecting member 50 is not limited to the magic tape, but is attached to and detached from the outer surface 36A of the side wall 30 by, for example, known engaging means, fitting means, fastening with bolts, or the like. It may be joined as possible.

The present invention is applicable not only to desks but also to various corrugated cardboard assemblies used for other purposes such as reception desks.

The corrugated cardboard material forming each member in the desk 100 of the above embodiment is merely an example, and each member may be formed of another cardboard material (other than paper).

10: Top plate 10A: Top surface 10B: Bottom surface 10C: Near area 13: First top plate component 13A: Opposing inner peripheral surface 14: Second top plate component 14A: Central side inner peripheral surface 15: Recess 20 : Leg 30: Side wall 32: Back wall 34: Front wall 36: Connecting wall 36A: Outer surface 37, 58: Velcro 38: Through hole 40: Inner plate 42: Protruding part 50: Cardboard connecting member 52: First Plate-shaped part 54: Second plate-shaped part 54A: Upper end surface 54X: Plate-shaped part 56, 56X: Connecting part 100, 100X: Desk

Claims (4)

A corrugated cardboard assembly for connecting a first corrugated cardboard body having a first plane and a second corrugated cardboard body having a second plane arranged so as to be orthogonal to the first plane with a corrugated cardboard connecting member. It is a connected structure of
The cardboard connecting member is
A first plate-shaped portion that is housed in a recess formed in the first plane of the first corrugated cardboard body and is joined to the first corrugated cardboard body.
It is joined to the second plane of the second corrugated cardboard body, and one end surface of the first corrugated cardboard body side is arranged so as to be in contact with a region in the vicinity of the recess in the first plane. The second plate-shaped part and
A connecting portion connecting the exposed surface of the first plate-shaped portion and the exposed surface of the second plate-shaped portion,
The connecting structure of the cardboard assembly. The connecting structure of the corrugated cardboard assembly according to claim 1.
A connecting structure of a corrugated cardboard assembly in which the second plate-shaped portion of the corrugated cardboard connecting member is detachably joined to the second plane of the second corrugated cardboard body. The connecting structure of the corrugated cardboard assembly according to claim 1 or 2.
The second cardboard body has a pair of the second planes facing different directions from each other.
A connecting structure of a cardboard assembly in which each of the pair of second planes is connected to the first cardboard body via the cardboard connecting member. The connected structure of the corrugated cardboard assembly according to any one of claims 1 to 3.
A corrugated cardboard in which at least a part of the outer peripheral surface of the first plate-shaped portion of the corrugated cardboard connecting member is in contact with at least a part of the inner peripheral surface forming the recess in the first corrugated cardboard body. The connecting structure of the assembly.

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