JP2022135713A - Joint structure of plate material, joining method of plate material, and cabinet - Google Patents

Abstract

To provide a joint structure of plate materials, a joining method of plate materials, and a cabinet that do not require an adhesive, do not impair appearance, can be implemented with inexpensive costs, and have good assembling workability.SOLUTION: A joint structure of plates for joining an end surface of a second plate material to a main plane of a first plate material, includes: a first plate material that has a first joint hole; a second plate material that has a second joint hole; and a joint member that has a first foot portion and a second foot portion that project out in generally perpendicular two directions from a joint member body portion, a first engagement projecting portion provided at a tip end of the first foot portion and capable of being fitted with a first engagement recessed portion, and a second engagement projecting portion provided at a tip end of the second foot portion and capable of being fitted with a second engagement portion. The first foot portion and the first engagement projecting portion of the joint member are inserted from a first opening portion of the first plate material and the first engagement projecting portion is fitted with the first engagement recessed portion. The second foot portion and the second engagement projecting portion of the joint member are inserted from a second opening portion of the second plate material, and the second engagement projecting portion is fitted with the second engagement recessed portion.SELECTED DRAWING: Figure 2

Description

TECHNICAL FIELD The present invention relates to a joining structure of plate materials, a joining method of plate materials, and a cabinet.

Conventionally, in a structure in which plate materials such as a top plate, a bottom plate, and a back plate are attached to plate materials such as the side plates used in a cabinet, it is common practice to attach dowels to the joints of the plate materials and apply adhesive. there is At this time, the strength for supporting the cabinet varies due to variations in the amount of adhesive to be applied, variations in the dimensions of the plate material, and the like. Furthermore, there is a risk that the joints may become loose due to vibration caused by opening and closing doors attached to furniture, cabinets, etc., or due to a large load on the cabinets.

In some cases, a reinforcing member is attached between the plate members to prevent the joint from loosening, but the reinforcing member is exposed and conspicuous, spoiling the appearance of the cabinet and lowering the commercial value of the cabinet. Furthermore, the plate materials that constitute the back plate and the side plates must be joined by screws to the reinforcement members, etc., and it takes a long time to assemble due to the screwing work, which increases labor costs, etc., resulting in a low cost. could not assemble the cabinet.

In addition, the use of an adhesive when assembling the cabinet requires curing time until the bonding is completed. For this reason, it takes more time to cure the adhesive, which is also one of the reasons why the cabinet cannot be assembled at a low cost.

Based on these problems, cabinets with a joint structure have been proposed that do not require an adhesive when joining plate materials, and are intended to make joints less conspicuous and less likely to impair the appearance (for example, patent documents 1).

In Patent Document 1, the first panel is provided with a first insertion hole that opens to the joint portion on the main plane, the second panel is correspondingly provided with a second insertion hole that opens to the joint end surface, and the second panel is provided with a branch hole for locking that opens in its main plane and communicates with the second insertion hole, the coupling member is inserted into the first insertion hole and the second insertion hole, and the coupling member is inserted into the first insertion hole. A locking projection is provided on the insertion side surface, and an engaging portion is provided on the tip of the insertion side to the second insertion hole. A cabinet is disclosed which is configured to be inserted and fastened with coupling members.

JP-A-2002-106525

However, in the conventional cabinet disclosed in Patent Document 1, not only the first joint hole and the second joint hole but also the branch hole for locking into which the locking member is inserted are provided in order to fasten the coupling member. must be provided. Therefore, in the conventional cabinet disclosed in Patent Document 1, if the upper end face of the locking member inserted into the locking branch hole is visible from the outside of the cabinet, it is conspicuous and spoils the appearance. There was a problem that there was a possibility that In addition, in the conventional cabinet disclosed in Patent Document 1, the joint structure is somewhat complicated, which leads to an increase in cost, and in addition, the use of tools and the need for a certain assembling procedure add to the need for workers. There is also the problem that the load is heavy and the workability of the assembly is not good (see FIGS. 1 to 4, etc. of Document 1).

SUMMARY OF THE INVENTION Accordingly, the present invention has been devised in view of the above-described problems. To provide a joining structure of plate materials, a joining method of plate materials, and a cabinet with good resistance.

In order to achieve the above object, a plate member joining structure according to a first aspect of the present invention is a plate member joining structure for joining an end surface of a second plate member to a main plane of a first plate member. The first plate member having a first joining hole provided with a first opening extending toward the main plane and opening in the main plane, and a first engaging recess inside the first opening. , a second opening extending in an in-plane direction parallel to the length direction of the end face of the main plane and opening in the main plane; and a second opening inside the second opening. a second plate member having a second joint hole provided with an engaging recess; a first foot portion and a second foot portion protruding in two substantially perpendicular directions from a joint member main body portion; and the first foot portion. and a first engagement projection that is provided at the tip of the first engagement recess that can be fitted into the first engagement recess, and a second engagement that is provided at the tip of the second leg and can be fitted into the second engagement recess. and a joint member having a mating convex portion, wherein the first leg portion and the first engaging convex portion of the joint member are inserted from the first opening, and the first engaging convex portion is , the second foot portion and the second engaging protrusion of the joining member are inserted through the second opening, and the second engaging protrusion is fitted in the first engaging recess; is fitted in the second engaging recess.

A plate joining structure according to a second aspect of the invention is the first aspect of the invention, wherein the first joining hole and the second joining hole have substantially the same cross-sectional shape and size in the fitting direction of the joining member. In addition, the first foot portion and the first engaging projection portion of the joint member, and the second foot portion and the second engaging projection portion of the joint member have a cross-sectional shape and shape in the fitting direction of the joint member. It is characterized by having substantially the same size.

A plate member joining structure according to a third aspect of the invention is the first or second aspect of the invention, wherein a first guide surface that contacts when the first leg portion is inserted into the first opening of the first joint hole; A second guide surface that contacts when the second leg is inserted into the second opening of the second joint hole is formed into a curved surface having a substantially arc-shaped cross section.

A plate member joining structure according to a fourth aspect of the invention is, in any one of the first to third aspects of the invention, the side of the joining member body portion of the joining member opposite to the side joined to the first plate member and the second plate member. is formed in a shape substantially following the intersection of the main plane of the first plate member and the main plane of the second plate member which are substantially perpendicular to each other.

A cabinet according to a fifth aspect of the invention is characterized by including the first plate member and the second plate member joined by the plate member joining structure according to any one of the first to fourth aspects of the invention.

A plate member joining method according to a sixth aspect of the present invention is a plate member joining method for joining an end surface of a second plate member to a main plane of a first plate member, in which the plate members extend in the in-plane direction of the main plane and The length of the first plate material having a first opening opened in the main plane and the first joining hole provided with the first engaging recess inside the first opening, and the end surface of the main plane A second opening that extends in an in-plane direction parallel to the direction and is open in the main plane, and a second engaging recess that is provided inside the second opening. a second plate member having two joint holes; a first leg portion and a second leg portion projecting in two substantially perpendicular directions from the joint member main body portion; a joining member having a first engaging protrusion that can be fitted into the joint recess, and a second engaging protrusion that is provided at the tip of the second leg and can be fitted into the second engaging recess; while rotating the joint member toward the main plane of the second plate, inserting the second leg and the second engaging projection of the joint member through the second opening. , the second engaging protrusion is fitted into the second engaging recess, and the first foot and the first engaging protrusion of the joining member are aligned with the main plane of the first plate member. The joining member is inserted through the first opening while being rotated toward the joining member, and the first engaging convex portion is fitted into the first engaging concave portion.

A plate member joining structure according to a seventh aspect of the present invention is a plate member joining structure for joining an end face of a second plate member to a main plane of a first plate member, wherein the plate member joining structure extends in an in-plane direction of the main plane and The length of the first plate material having a first opening opened in the main plane and the first joining hole provided with the first engaging recess inside the first opening, and the end surface of the main plane A second opening extending in an in-plane direction parallel to the direction and opened in the main plane, and a cross-sectional abbreviation C opened in the second opening toward the main plane a second engaging recess formed by a member to be joined which is shaped like a letter and is elastically deformable to the outside, with both ends thereof bent inward toward each other and fitted along the length direction; a second plate member having a second joint hole; a first leg portion and a second leg portion projecting in two substantially perpendicular directions from the joint member main body portion; a first engaging protrusion that can be fitted into the first engaging recess; and a joint member having a second engaging convex portion that can be fitted into the joint member, wherein the first leg portion and the first engaging convex portion of the joint member are inserted from the first opening, The first engaging projection is fitted into the first engaging recess, and the second foot and the second engaging projection of the joining member are inserted from the second opening. , wherein the second engagement protrusion is fitted into the second engagement recess.

A plate joining structure according to an eighth invention is characterized in that, in the seventh invention, the second plate is a rod-shaped member whose width direction where the end face is located is shorter than its length direction.

A plate member joining structure according to a ninth aspect of the invention is the seventh or eighth aspect of the invention, wherein a first reinforcing engagement recess is provided on the main plane of the first plate member, and a second reinforcing engagement recess is provided on the main plane of the second plate member. A reinforcing engagement concave portion is provided, and the joint member is provided with a first reinforcing engagement convex portion and a second reinforcing engagement convex portion, and the first reinforcing engagement convex portion of the joint member is The joint member is inserted and fitted into the first reinforcing engagement concave portion, and the second reinforcing engaging convex portion of the joining member is inserted and fitted into the second reinforcing engaging concave portion. do.

A plate material joining structure according to a tenth aspect of the invention is the plate member joining structure according to any one of the seventh to ninth aspects, wherein the second joining hole is formed so as to be separated from at least one side surface of the member to be joined. Characterized by

A plate member joining structure according to an eleventh aspect of the invention is the plate member joining structure according to any one of the seventh to tenth aspects of the invention, wherein the guide surface that comes into contact with the first opening of the first joint hole of the first leg has a cross-section It is characterized by being formed on a substantially arc-shaped curved surface.

A cabinet according to a twelfth aspect of the invention is characterized by including the first plate member and the second plate member joined by the plate member joining structure according to any one of the seventh to eleventh aspects of the invention.

A plate member joining method according to a thirteenth aspect of the present invention is a plate member joining method for joining an end surface of a second plate member to a main plane of a first plate member, wherein the plate members extend in the in-plane direction of the main plane and The length of the first plate material having a first opening opened in the main plane and the first joining hole provided with the first engaging recess inside the first opening, and the end surface of the main plane A second opening extending in an in-plane direction parallel to the direction and opened in the main plane, and a cross-sectional abbreviation C opened in the second opening toward the main plane a second engaging recess formed by a member to be joined which is shaped like a letter and is elastically deformable to the outside, with both ends thereof bent inward toward each other and fitted along the length direction; a second plate member having a second joint hole; a first leg portion and a second leg portion projecting in two substantially perpendicular directions from the joint member main body portion; a first engaging protrusion that can be fitted into the first engaging recess; and a second engaging convex portion that can be fitted to the joint member, and the first foot portion and the first engaging convex portion of the joint member are connected to the joint member of the first plate material. While rotating toward the main plane, it is inserted from the first opening to fit the first engaging convex portion into the first engaging concave portion, and the second foot portion and the joint member of the joining member The second engaging protrusion is inserted through the second opening while pushing the second plate so that the main plane faces the joining member, and the second engaging protrusion is inserted into the second engaging member. It is characterized in that it is fitted in the matching recess.

According to the joining structure of the board|plate material which concerns on 1st invention, the edge surface of a 2nd board|plate material is joined to the main plane of a 1st board|plate material by using the joining member which fits. As a result, it is possible to provide a joining structure of plate members that does not require an adhesive, does not impair the appearance, can be implemented at a low cost, and has good assembling workability.

In particular, according to the plate member joining structure according to the second aspect of the invention, the first joining hole and the second joining hole have substantially the same cross-sectional shape and size in the fitting direction of the joining member, The first leg portion and the first engaging protrusion of the member and the second leg portion and the second engaging protrusion of the member have substantially the same cross-sectional shape and size in the fitting direction of the joining member. As a result, the joining direction of the joining member can be reversed with respect to the first plate member and the second plate member. Since the holes can be opened using a hole punch, quality control and the like in the manufacturing stage can be facilitated.

In particular, according to the plate member joining structure according to the third aspect of the present invention, the first guide surface that comes into contact with the first opening of the first joining hole of the first leg and the second joining hole of the second leg The second guide surface that comes into contact with the second opening is formed into a curved surface having a substantially arcuate cross section. As a result, when the first leg and the second leg are inserted into the first opening of the first joint hole and the second opening of the second joint hole, respectively, the first guide surface and the second guide surface Since it can be inserted smoothly, it is possible to improve workability in assembly.

In particular, according to the plate member joining structure according to the fourth aspect of the present invention, the surface of the joining member main body portion of the joining member opposite to the side joined to the first plate member and the second plate member is substantially perpendicular to the main body of the first plate member. It is formed in a shape that substantially follows the intersection of the plane and the main plane of the second plate. As a result, since the outer surface of the joint member has a shape that substantially follows the intersection of the main plane of the first plate member and the main plane of the second plate member, the external appearance is not impaired, and the amount of members of the joint member can be reduced. Therefore, it can be implemented at a lower cost.

According to the cabinet according to the fifth invention, since it includes the first plate material and the second plate material joined by the joining structure of the plate materials according to the first to fourth inventions, the plate materials according to the first to fourth inventions described above are included. It is possible to provide a cabinet that exhibits the effects of any of the joint structures.

According to the method for joining plate materials according to the sixth aspect of the invention, since fitting joining members are used, the joining of plate materials does not require an adhesive, does not impair the appearance, can be performed at low cost, and has good assembling workability. It can be performed.

According to the board joining structure according to the seventh aspect of the invention, the end surface of the second board is joined to the main plane of the first board by using the fitting joining member. As a result, it is possible to provide a joining structure of plate members that does not require an adhesive, does not impair the appearance, can be implemented at a low cost, and has good assembling workability.

In particular, according to the joining structure of plate members according to the eighth invention, the second plate member is a rod-like member whose width direction with the end face is shorter than its length direction. As a result, it is possible to cope with the jointing of rod-shaped members such as the auxiliary panel of the cabinet.

In particular, according to the plate member joining structure according to the ninth aspect of the present invention, the first reinforcing engagement convex portion of the joining member is inserted and fitted into the first reinforcing engagement concave portion of the first plate member, and the joint member The second reinforcing engagement protrusion is inserted and fitted into the second reinforcing engagement recess of the second plate member. As a result, since there is a fitting for reinforcement of these, the joint strength between the first plate member and the second plate member can be increased.

In particular, according to the plate member joining structure according to the tenth invention, the second joining hole is formed so as to be separated from at least one side surface of the member to be joined. This makes it difficult for the side surface of the member to be joined to interfere with the inner side surface of the second joining hole, so that the joining member and the second plate member can be joined more smoothly, and the assembly workability can be improved.

In particular, according to the plate member joining structure according to the eleventh aspect of the present invention, the guide surface that comes into contact with the first opening of the first joining hole of the first leg is formed into a curved surface having a substantially arcuate cross section. Thereby, when inserting the first leg into the first opening of the first joint hole, the guide surface allows the insertion to be smoother, so that the assembling workability can be improved.

According to the cabinet according to the twelfth invention, since it includes the first plate material and the second plate material joined by the joining structure of the plate materials according to the seventh to eleventh inventions, the plate materials according to the above seventh to eleventh inventions It is possible to provide a cabinet that exhibits the effects of any of the joint structures.

According to the method for joining plate materials according to the thirteenth aspect of the present invention, since fitting joining members are used, the joining of plate materials does not require an adhesive, does not impair the appearance, can be performed at low cost, and has good assembling workability. It can be performed.

FIG. 1 is a perspective view showing a cabinet according to Embodiment 1 of the present invention. FIG. 2 is a side view showing a first joint structure for plate materials according to Embodiment 1 of the present invention. FIG. 3 is a perspective view showing an assembly stage of the first joining structure for plate materials according to the first embodiment of the present invention. FIG. 4 is a perspective view showing an assembly stage of the first joining structure for plate materials according to the first embodiment of the present invention. FIG. 5 is a perspective view showing an assembly stage of the first joining structure for plate materials according to the first embodiment of the present invention. FIG. 6 is a perspective view showing an assembly completion stage of the first joining structure for plate materials according to the first embodiment of the present invention. FIG. 7 is a perspective view showing a second joining structure of plate materials according to Embodiment 1 of the present invention. FIG. 8 is a perspective view showing a first plate member used in a second joining structure of plate members according to Embodiment 1 of the present invention. 9 is a partial cross-sectional view showing a portion of the first joint hole in the first plate of FIG. 8. FIG. FIG. 10 is a perspective view showing a second plate member used in a second joining structure of plate members according to the embodiment of the present invention. FIG. 11 is a side view showing a part of the second plate material in FIG. 10 around a second joint hole formed by a member to be joined. 12 is a perspective view showing a member to be joined fitted inside the second opening of the second plate of FIG. 10. FIG. FIG. 13 is a perspective view showing a joining member used in a second joining structure for plate materials according to Embodiment 1 of the present invention. FIG. 14 is a side view showing a partly cutaway portion of a joined state between a second plate member and a joining member in the second joining structure of plate members according to Embodiment 1 of the present invention. FIG. 15 is a perspective view showing an assembly stage of the second joining structure for plate materials according to the first embodiment of the present invention. FIG. 16(a) is a side view showing a state before inserting the second engaging protrusion into the member to be joined in the assembly stage of the second joining structure for plate materials according to Embodiment 1 of the present invention; FIG. 16(b) is a side view showing a state in which the second engaging projection is being inserted into the member to be joined, and FIG. It is a side view showing a state. 17 is a perspective view showing a cabinet according to Embodiment 2 of the present invention. FIG.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments exemplified by applying the present invention will be described below with reference to the drawings.

[Embodiment 1]
A cabinet 100 according to Embodiment 1 of the present invention is, as shown in FIG. 1, a shelf or the like including a plurality of plate members joined by a first joining structure 10A and a second joining structure 10B. Cabinet 100 may be, for example, a sink cabinet mounted under a kitchen sink. Also, the cabinet 100 may be a hanging cupboard or the like that is attached to a wall surface, as will be described later in the second embodiment.

The cabinet 100 is constructed by joining a first side plate 11, a back plate 12, a bottom plate 13, a second side plate 14, and an auxiliary curtain plate 15, respectively. In this cabinet 100, the back plate 12 and the bottom plate 13 are joined by the first joining structure 10A, and the first side plate 11, the auxiliary curtain plate 15, the second side plate 14, and the auxiliary curtain plate 15 are joined. They are respectively joined by the second joining structure 10B. Note that the other plate materials are joined by other joining structures that do not require an adhesive (not shown), so description thereof will be omitted. That is, the cabinet of the present invention only needs to include two plate members joined by the first joining structure 10A or the second joining structure 10B.

As described above, in the cabinet 100 according to this embodiment, the back plate 12 and the bottom plate 13 are joined by the first joint structure 10A, and the first side plate 11, the auxiliary curtain plate 15, and the second side plate 14 are joined together. , and the auxiliary curtain plate 15 are respectively joined by the second joining structure 10B. Therefore, the first joint structure 10A and the second joint structure 10B will be described in detail below.

(First joint structure 10A)
As shown in FIG. 2, the first plate member joining structure 10A according to the embodiment of the present invention is a plate member joining structure for joining the end face 2b of the second plate member 2A to the main plane 1a of the first plate member 1A. be. Here, in the cabinet 100 described above, the back plate 12 is the first plate member 1A, and the bottom plate 13 is the second plate member 2A.

As shown in FIG. 2, the first joint structure 10A includes a first plate member 1A, a second plate member 2A, and a joint member 3A.

The first plate member 1A extends in an in-plane direction parallel to the length direction of the end face 1b of the main plane 1a so as to penetrate both end faces and is opened in the main plane 1a. 41 and a first engaging recess 42 inside the first opening 41 are provided. The first joint hole 4A may be formed by penetrating only one end face or not penetrating both end faces. Further, the recess 43 at the position facing the first engagement recess 42 is provided merely for the function of the hole opening tool for opening the first joint hole 4A, and may be omitted.

The first board 1A is made of wood such as solid wood, plywood, laminated wood, MDF (Medium density fiberboard), or particle board. However, the first plate material 1A is not limited to this, and a metal material such as a steel plate or stainless steel may be used for the first plate material 1A, or a resin material such as acrylic, urethane, and FRP (Fiber Reinforced Plastics). may be used.

2 A of 2nd board|plate materials are installed so that both end surfaces may be penetrated toward the in-plane direction parallel to the length direction of the end surface 2b of the main plane 2a, and the 2nd opening part opened in the main plane 2a. 51 and a second engaging recess 52 inside the second opening 51 are provided in the second joint hole 5A. The second joint hole 5A may be formed by penetrating only one end face or not penetrating both end faces. Further, the recessed portion 53 at the position facing the second engagement recessed portion 52 is also provided merely for the function of the hole opening tool for opening the first joint hole 5A, and may be omitted.

The second plate 2A is made of wood such as solid wood, plywood, laminated wood, MDF (Medium density fiberboard), or particle board. However, the second plate material 2A is not limited to this, and a metal material such as a steel plate or stainless steel may be used for the second plate material 2A, or a resin material such as acrylic, urethane, and FRP (Fiber Reinforced Plastics). may be used.

The joint member 3A includes a first leg portion 31 and a second leg portion 32 projecting in two substantially perpendicular directions from a joint member main body portion 30A having a substantially L-shaped cross section, and provided at the tip of the first leg portion 31. A first engaging convex portion 311 that can be fitted into a first engaging concave portion 42 that is thinner than the first leg portion 31 in the thickness direction; and a second engaging convex portion 321 that can be fitted into the thin second engaging concave portion 52 .

Although resin is used as the joint member 3A, it is not limited to this, and for example, a metal or other material may be used.

In the first joining structure 10A, the first foot portion 31 and the first engaging protrusion 311 of the joining member 3A are inserted from the first opening 41, and the first engaging protrusion 311 is inserted into the first engaging portion. The second leg portion 32 and the second engaging projection 321 of the joining member 3A are inserted through the second opening 51, and the second engaging projection 321 is fitted into the second joint portion 42. It is configured to be fitted in the engaging recess 52 .

Here, the first joint hole 4A and the second joint hole 5A have substantially the same cross-sectional shape and size in the fitting direction of the joint member 3A. The first engaging convex portion 311, the second foot portion 32 and the second engaging convex portion 321 have substantially the same cross-sectional shape and size in the fitting direction of the joining member 3A.

Also, the first guide surface 31a that contacts when the first leg 31 is inserted into the first opening 41 of the first joint hole 4A and the second opening 51 of the second joint hole 5A of the second leg 32 The second guide surface 32a, which is in contact with the insertion, is formed into a curved surface having a substantially arcuate cross section.

Furthermore, the surface 33 of the joining member main body 30A of the joining member 3A opposite to the side joined to the first plate member 1A and the second plate member 2A is substantially orthogonal to the main plane 1a of the first plate member 1A and the second plate member. The main plane 2a of 2A is formed in a shape that substantially follows the intersection X of the main plane 2a.

Next, a method for joining the first joining structure 10A of plate members described above will be described.

First, as shown in FIG. 3, the second engagement protrusion 321 of the joint member 3A is moved toward the second joint hole 5A of the second plate member 2A.

Then, the second leg portion 32 and the second engaging convex portion 321 of the joint member 3A are inserted through the second opening 51 while rotating the joint member 3A toward the main plane 2a of the second plate member 2A. 4, the second engaging projection 321 is fitted into the second engaging recess 52. As shown in FIG. The second leg portion 32 and the second engaging convex portion 321 of the joint member 3A are slid and inserted from the end surface 2A side of the second plate 2A, and the second engaging convex portion 321 is inserted into the second engaging concave portion. 52 may be fitted.

Subsequently, the first joint hole 4A of the first plate member 1A is moved toward the first engagement projection 311 of the joint member 3A, and as shown in FIG. The 1 engagement protrusion 311 is inserted from the first opening 41 while rotating the main plane 1a of the first plate member 1A toward the joining member 3A.

Then, when the first engagement protrusion 311 is fitted into the first engagement recess 42, the first joint structure 10A is completed as shown in FIG. The first leg 31 and the first engagement protrusion 311 of the joining member 3A are also slid and inserted from the end face 1A side of the first plate member 1A, and the first engagement protrusion 311 is inserted into the first engagement recess. 42 may be fitted.

Also, in the reverse procedure, the first engaging convex portion 311 of the joining member 3A is fitted into the first engaging concave portion 42 of the first plate member 1A, and then the second engaging convex portion of the joining member 3A is fitted. 312 may be fitted into the second engaging recess 52 of the second plate member 2A.

(Second joint structure 10B)
As shown in FIG. 7, a second plate member joining structure 10B according to an embodiment of the present invention is a plate member joining structure for joining an end surface 2b of a second plate member 2B to a principal plane 1a of a first plate member 1B. be. Here, in the cabinet 100 described above, the first side plate 11 and the second side plate 14 are the first plate member 1B, and the auxiliary curtain plate 15 is the second plate member 2B.

As shown in FIG. 7, the second joint structure 10B includes a first plate member 1B, a second plate member 2B, and a joint member 3B.

As shown in FIGS. 8 and 9, the first plate member 1B extends in an in-plane direction parallel to the length direction of the end surface 1b of the main plane 1a without penetrating both end surfaces. A first opening 41 opened in the plane 1a, a first engaging recess 42 inside the first opening 41, a circular first reinforcing engaging recess 44 opened at both ends of the first opening 41, 44 is provided with a first joint hole 4B. The first joint hole 4B may be formed by penetrating only one end face or penetrating both end faces. Further, the recess 43 at the position facing the first engagement recess 42 is provided merely for the function of the hole opening tool for opening the first joint hole 4B, and may be omitted. Furthermore, the first reinforcing engagement concave portion 44 may be omitted, or may be provided at another location.

The first board 1B is made of wood such as solid wood, plywood, laminated wood, MDF (medium density fiberboard), or particle board. However, the first plate material 1B is not limited to this, and a metal material such as a steel plate or stainless steel may be used for the first plate material 1B, or a resin material such as acrylic, urethane, and FRP (Fiber Reinforced Plastics). may be used.

As shown in FIGS. 10 to 12, the second plate member 2B extends in an in-plane direction parallel to the length direction of the end face 2b of the main plane 2a so as to penetrate only one end face. A second opening 51 that opens onto the main plane 2a, and a recess 55 inside the second opening 51 that has a substantially C-shaped cross section that opens toward the main plane 2a and is elastically deformable outward. a second joint hole 5B provided with a second engagement recess 52B formed by the members 6 to be joined whose both ends are bent inward and fitted along the length direction; It has two reinforcing engagement recesses 54,54.

The second board 2B is made of wood such as solid wood, plywood, laminated wood, MDF (medium density fiberboard), or particle board. However, the second plate material 2B is not limited to this, and a metal material such as a steel plate or stainless steel may be used for the second plate material 2B, or a resin material such as acrylic, urethane, and FRP (Fiber Reinforced Plastics). may be used. Also, although the members to be joined 6 are made of resin, they are not limited to this, and members made of metal or other materials, for example, may be used.

As shown in FIG. 13, the joint member 3B is provided with a first leg portion 31B and a second leg portion 32B protruding in two substantially perpendicular directions from the joint member main body portion 30B, and at the tip of the first leg portion 31B. A first engaging convex portion 311 that can be fitted into the first engaging concave portion 42, and a constricted portion 322 are provided at the tip of the second leg portion 32B so as to be wider in the thickness direction than the constricted portion 322. A second engaging convex portion 323 that can be fitted into the engaging concave portion 52B, two first reinforcing engaging convex portions 333 that can be fitted into the two first reinforcing engaging concave portions 44, 44, respectively, and two It has two second reinforcing engaging protrusions 334, 334 that can be fitted into the two second reinforcing engaging recesses 54, 54, respectively. If there is no need for reinforcement, the first reinforcing engaging protrusions 333, 333 and the second reinforcing engaging protrusions 334, 334 may be omitted.

Although resin is used for the joint member 3B, it is not limited to this, and for example, a metal or other material may be used.

Then, in the second joint structure 10B, the first leg portion 31B and the first engaging convex portion 311 of the joint member 3B are inserted from the first opening portion 41, and the first engaging convex portion 311 is inserted into the first engaging portion. The first reinforcing engaging protrusions 333, 333 are fitted into the first reinforcing engaging recesses 44, 44, and the second foot portion 32B and the second engaging member 32B of the joint member 3B are fitted in the joint recess 42. The protrusion 323 is inserted from the second opening 51B, the second engagement protrusion 323 is fitted into the second engagement recess 52B, and the second reinforcement engagement protrusions 334, 334 are engaged with the second reinforcement engagement. It is configured to be fitted in the joint recesses 54 , 54 .

Here, as shown in FIG. 14, both side surfaces of the recess 55 inside the second opening 51 of the second bonding hole 5B are formed so as to be separated from the side surfaces 61, 61 of the member to be bonded 6. . Note that this separation may be omitted, or only one side surface 61 of the member to be joined 6 may be separated.

Further, as shown in FIG. 13, a guide surface 31a1 that contacts when the first leg 31B is inserted into the first opening 51 of the first joint hole 5B is formed into a curved surface having a substantially arcuate cross section.

Further, as shown in FIGS. 11, 13 and 14, the tip surface of the second engaging projection 323 has a rounded shape, and the engaging portion 62 of the engaged member 6 is aligned with the side surface 61. is curved and formed so that the angle of is smaller than 90°, and the engaging portion 62 is formed such that the mutual width d is smaller than the width of the second engaging convex portion 323 and smaller than the width of the constricted portion 322. formed. The locking portions 62 may be formed so that the width d of each other is smaller than the width of the second engaging convex portion 323 and equal to or greater than the width of the constricted portion 322 . Also, L in FIG. 14 is the center line of the second engaging projection 323 .

Next, a method for joining the second joining structure 10B of plate members described above will be described.

First, as shown in FIG. 15, the first leg portion 31B and the first engaging convex portion 311 of the joining member 3B are inserted through the first opening portion 41 while being rotated toward the main plane 1a of the first plate member 1B. Then, the first engagement projection 311 is fitted into the first engagement recess 42, and the two first reinforcement engagement projections 333, 333 are fitted into the two first reinforcement engagement recesses 44, 44, respectively. Let

Then, the second leg portion 32B and the second engaging convex portion 323 of the joint member 3B are inserted through the second opening portion 51 while pushing the second plate member 2B so that the main plane 2a faces the joint member 3B. When the second engagement protrusion 323 is fitted into the second engagement recess 52B, and the second reinforcement engagement protrusions 334, 334 are fitted into the second reinforcement engagement recesses 54, 54, as shown in FIG. Thus, the second joint structure 10B is completed.

Alternatively, the second plate member 2B and the joining member 3B may be joined in reverse order, and then the first plate member 1B may be joined to the joining member 3B.

According to the first joining structure 10A for plate materials according to Embodiment 1 of the present invention described above, by using the joining member 3A to be fitted, the end face 2b of the second plate member 2A is attached to the main plane 1a of the first plate member 1A. to join. As a result, it is possible to provide the joining structure 10A of plate materials that does not require an adhesive, does not impair the appearance, can be implemented at low cost, and has good assembling workability.

Further, according to the first joint structure 10A for plate materials according to the first embodiment, the first joint hole 4A and the second joint hole 5A have substantially the same cross-sectional shape and size in the fitting direction of the joint member 3A. The first foot portion 31 and the first engaging convex portion 311 of the joint member 3A and the second foot portion 32 and the second engaging convex portion 321 of the joint member 3A are arranged in the fitting direction of the joint member 3A. The cross-sectional shape and size are substantially the same. As a result, the fitting direction of the joint member 3A can be reversed with respect to the first plate member 1A and the second plate member 2A. can be opened by using the same hole punch, quality control and the like in the manufacturing stage can also be facilitated.

Further, according to the first joint structure 10A for plate materials according to the first embodiment, the first guide surface 31a that contacts when the first leg 31 is inserted into the first opening 41 of the first joint hole 4A, The second guide surface 32a, which is in contact with the second leg 32 when it is inserted into the second opening 51 of the second joint hole 5A, is formed into a curved surface having a substantially arcuate cross section. As a result, when inserting the first leg 31 and the second leg 32 into the first opening 41 of the first joint hole 4A and the second opening 51 of the second joint hole 5A, respectively, the first guide surface 31a , and the second guide surface 32a, the insertion can be performed smoothly, so that the assembling workability can be improved.

Further, according to the first joining structure 10A of plate materials according to the first embodiment, the surface 33 of the joining member body portion 30A of the joining member 3A opposite to the side joined to the first plate member 1A and the second plate member 2A is formed in a shape substantially following the intersection X between the principal plane 1a of the first plate member 1A and the principal plane 2a of the second plate member 2A, which are substantially perpendicular to each other. As a result, the outer surface of the joining member 3A has a shape substantially following the intersection X between the main plane 1a of the first plate member 1A and the main plane 2a of the second plate member 2A. Since the amount of members can be reduced, it can be implemented at a lower cost.

According to the cabinet 100 according to Embodiment 1 of the present invention, since it includes the first plate member 1A and the second plate member 2A that are joined by the joint structure 10A described above, the first plate member according to Embodiment 1 of the present invention described above is It is possible to provide the cabinet 100 that exhibits the effects of the joint structure 10A.

According to the joining method of the joining structure 10A of plate members according to the first embodiment of the present invention, the joining member 3A is used, which can be fitted simply by inserting, rotating, or sliding, without using a tool. It is possible to join plate materials without requiring a joint, without impairing the appearance, at a low cost, and with good assembling workability.

According to the second plate member joining structure 10B according to the first embodiment of the present invention, the end surface 2b of the second plate member 2B is joined to the main plane 1a of the first plate member 1B by using the joining member 3B to be fitted. . As a result, it is possible to provide the plate member joining structure 10B that does not require an adhesive, does not impair the appearance, can be implemented at low cost, and has good assembling workability.

Further, according to the second joining structure 10B for plate members according to the first embodiment, the second plate member 2B is a rod-shaped member in which the width direction of the end face is shorter than the length direction thereof. As a result, it is possible to suitably cope with the joining of rod-shaped members such as the auxiliary panel 15 of the cabinet 100 .

Further, according to the second joint structure 10B for plate members according to the first embodiment, the two first reinforcing engagement protrusions 333, 333 of the joint member 3B are aligned with the two first reinforcing engagement protrusions 333 of the first plate member 1B. The two second reinforcing engaging protrusions 334, 334 of the joint member 3B are inserted into and fitted into the recesses 44, 44, respectively, and the two second reinforcing engaging recesses 54, 54 of the second plate member 2B. They are inserted and mated respectively. As a result, there is a fitting for these reinforcements, so that the joint strength between the first plate member 1B and the second plate member 2B can be increased.

Further, according to the second joining structure 10B for plate members according to the first embodiment, both side surfaces of the recess 55 inside the second opening 51 of the second joining hole 5B are It is formed so as to be spaced apart from 61 . As a result, both side surfaces of the member to be joined 6 are less likely to interfere with both side surfaces of the concave portion 55 of the second joining hole 5B, so that the joining member 3B and the second plate member 2B can be joined more smoothly, resulting in improved assembling workability. can be made better.

In addition, according to the second joint structure 10B for plate members according to the first embodiment, the guide surface 31a1 that contacts when the first leg 31B is inserted into the first opening 51 of the first joint hole 5B has a cross section of approximately It is formed into an arc-shaped curved surface. As a result, when the first leg portion 31B is inserted into the first opening portion 51 of the first joint hole 5B, the guide surface 31a1 allows the insertion to be performed more smoothly, thereby improving workability in assembly.

Furthermore, according to the second joining structure 10B for plate members according to the first embodiment, the tip surface of the second engaging projection 323 is rounded, and the locking portion 62 of the engaged member 6 is curved so that the angle with the side surface 61 is smaller than 90°, and the locking portion 62 has a mutual width d smaller than the width of the second engaging convex portion 323 and the width of the constricted portion 322 designed to be smaller. As a result, as shown in FIGS. 16(a) to 16(c), when the second engagement protrusion 323 is pushed into the second engagement recess 52B in the assembly stage of the second joint structure 10B, A force acts on the locking portion 62 of the engaging member 6 in the outward direction f to elastically deform it, thereby facilitating the insertion of the second engaging convex portion 323 into the joined member 6 and reducing the burden on the operator. can be done. Furthermore, as shown in FIG. 16(c), the locking portion 62 clamps the constricted portion 51 to lock the second engaging convex portion 323, thereby bonding the joint member 3B and the second plate member 2B together. It is possible to improve the strength of the structure, and thus the strength of the joint structure between the first plate member 1B and the second plate member 2B. That is, according to the second joining structure 10B for plate materials according to the first embodiment, the second engaging projection 323 is easily fitted into the second engaging recess 52B, and the locking portion 62 is held by its restoring force. It can be configured to return to its original position and not easily come off.

According to the cabinet 100 according to Embodiment 1 of the present invention, since it includes the first plate member 1B and the second plate member 2B that are joined by the joining structure 10B described above, the first plate member according to the above-described embodiment of the present invention is It is possible to provide the cabinet 100 that exhibits the effects of the joint structure 10B.

According to the joining method of the joining structure 10B of plate materials according to the first embodiment of the present invention, the joining member 3B that is fitted only by inserting and rotating is used without using a tool, so no adhesive is required. It is possible to join plate materials without impairing the appearance, at a low cost, and with good assembling workability.

[Embodiment 2]
Next, the cabinet 100 according to Embodiment 2 of the present invention will be described with reference to FIG. 17 . FIG. 17 is a perspective view showing the cabinet 100 according to Embodiment 2. FIG. The difference from the cabinet 100 according to the above-described first embodiment is mainly that it is a hanging cupboard, so this point will be mainly described, and the same components will be given the same reference numerals, and the description will be omitted.

The cabinet 100 according to the second embodiment is, as shown in FIG. is.

The cabinet 100 is constructed by joining a back plate 110, a first side plate 120, a top plate 130, a bottom plate 140, and a second side plate 150, respectively. In this cabinet 100, the back plate 110 and the top plate 130, and the back plate 110 and the bottom plate 14 are respectively joined by the first joining structure 10A. The remaining joints are joined by other joint structures that do not require an adhesive (not shown).

According to the cabinet 100 according to the second embodiment of the present invention, the back plate 110 and the top plate 130, and the back plate 110 and the bottom plate 14 each have the joint member body 30A having the substantially L-shaped cross section. is joined by the first joining structure 10A that joins the first plate member 1A and the second plate member 2A with, it is possible to provide the cabinet 100, which is a hanging cupboard, having sufficient strength to withstand a load in the vertical direction. can.

Furthermore, the cabinet 100 according to the second embodiment has few bulky accessories such as drawers, which reduces transportation costs and is particularly suitable for assembly at the installation site.

While embodiments of the invention have been described, the embodiments have been presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and equivalents thereof.

100 Cabinets 1A, 1B First plate 1a Principal plane 1b End faces 2A, 2B Second plate 2a Principal plane 2b End faces 10A, 10B Joint structure 41 First opening 42 First engaging recess 44 First reinforcing engaging recess 4A, 4B First joining hole 51 Second opening 52 Second engaging recess 52B Second engaging recess 54 Second reinforcing engaging recess 5A, 5B Second joining holes 3A, 3B Joining members 30A, 30B Joining member body 31 First first Foot 31B First foot 32 Second foot 32B Second foot 322 Constriction 323 Second engagement projection 311 First engagement projection 321 Second engagement projection 31a First guide surface 32a Second guide Surface 31a1 Guide surface 33 Surface X Intersecting portion 6 Joined member 61 Side surface 44 of joined member First reinforcing engagement concave portion 54 Second reinforcing engaging concave portion 333 First reinforcing engaging convex portion 334 Second reinforcing engaging convex portion

Claims (13)

In a plate member joining structure for joining the end surface of the second plate member to the main plane of the first plate member,
A first joint provided with a first opening that extends in an in-plane direction of the main plane and is open to the main plane, and a first engaging recess inside the first opening. the first plate member having a hole;
a second opening extending in an in-plane direction parallel to the length direction of the end face of the main plane and opening in the main plane; and a second engagement inside the second opening. the second plate member having a second joint hole provided with a joint recess;
A first leg portion and a second leg portion protruding in two substantially perpendicular directions from the joining member main body portion, and a first engagement provided at the tip of the first leg portion and capable of being fitted into the first engagement concave portion. a joint member having a convex portion and a second engaging convex portion provided at the tip of the second leg portion and capable of being fitted into the second engaging concave portion;
The first foot portion and the first engaging protrusion of the joining member are inserted from the first opening, and the first engaging protrusion is fitted into the first engaging recess. , the second leg portion and the second engaging protrusion of the joint member are inserted from the second opening, and the second engaging protrusion is fitted into the second engaging recess. A joining structure of plate materials characterized by: The first joint hole and the second joint hole have substantially the same cross-sectional shape and size in the fitting direction of the joint member. 2. The engaging convex portion, the second foot portion, and the second engaging convex portion have substantially the same cross-sectional shape and size in the fitting direction of the joining member. The joining structure of the plate materials according to . A first guide surface that contacts when the first leg is inserted into the first opening of the first joint hole, and a second leg that is inserted into the second opening of the second joint hole The joining structure of plate materials according to claim 1 or 2, wherein the second guide surface in contact with is formed into a curved surface having a substantially arcuate cross section. The main plane of the first plate member and the main plane of the second plate member, which are substantially perpendicular to each other, are substantially perpendicular to each other. The joining structure of plate materials according to any one of claims 1 to 3, characterized in that it is formed in a shape substantially following the intersection of the main plane and the main plane. A cabinet comprising the first plate member and the second plate member joined by the plate member joining structure according to any one of claims 1 to 4. In a plate material joining method for joining an end face of a second plate material to a main plane of a first plate material,
A first opening extending in the in-plane direction of the main plane and opening in the main plane, and a first joining hole having a first engaging recess provided inside the first opening The first plate material having
a second opening extending in an in-plane direction parallel to the length direction of the end face of the main plane and opening in the main plane; and a second engagement inside the second opening. the second plate member having a second joint hole provided with a joint recess;
A first leg portion and a second leg portion protruding in two substantially perpendicular directions from the joining member main body portion, and a first engagement provided at the tip of the first leg portion and capable of being fitted into the first engagement concave portion. using a joint member having a convex portion and a second engaging convex portion provided at the tip of the second leg portion and capable of being fitted into the second engaging concave portion,
The second leg portion and the second engaging projection of the joint member are inserted through the second opening while rotating the joint member toward the main plane of the second plate member, The engaging convex portion is fitted into the second engaging concave portion, and the first foot portion and the first engaging convex portion of the joint member are connected to the joint member by the main plane of the first plate member. A method of joining plate materials, comprising: inserting from the first opening portion while rotating toward the plate member, and fitting the first engaging convex portion into the first engaging concave portion. In a plate member joining structure for joining the end surface of the second plate member to the main plane of the first plate member,
A first opening extending in the in-plane direction of the main plane and opening in the main plane, and a first joining hole having a first engaging recess provided inside the first opening The first plate material having
a second opening extending in an in-plane direction parallel to the length direction of the end face of the main plane and opening in the main plane; The second joint is formed by members to be joined which have a substantially C-shaped cross section and are open to the outside, both ends of which are elastically deformable to the outside are bent inward, and are fitted together along the length direction. the second plate member having a second joint hole provided with two engaging recesses;
A first leg portion and a second leg portion protruding in two substantially perpendicular directions from the joining member main body portion, and a first engagement provided at the tip of the first leg portion and capable of being fitted into the first engagement concave portion. a convex portion, a second engaging convex portion which is provided at the tip of the second leg portion through the constricted portion so as to be wider in the thickness direction than the constricted portion, and which can be fitted into the second engaging concave portion; and a joining member having
The first foot portion and the first engaging protrusion of the joining member are inserted from the first opening, and the first engaging protrusion is fitted into the first engaging recess. , the second leg portion and the second engaging protrusion of the joint member are inserted from the second opening, and the second engaging protrusion is fitted into the second engaging recess. A joining structure of plate materials characterized by: The joining structure of plate members according to claim 7, wherein the second plate member is a rod-shaped member in which the width direction of the end face is shorter than the length direction thereof. A first reinforcing engagement recess is provided on the main plane of the first plate member, a second reinforcing engagement recess is provided on the main plane of the second plate member, and the joint member is provided with a first reinforcing engagement recess. A convex portion and a second reinforcing engagement convex portion are provided, and the first reinforcing engagement convex portion of the joint member is inserted and fitted into the first reinforcing engagement concave portion, and the joint member The joining structure of plate materials according to claim 7 or 8, characterized in that said second reinforcing engagement convex portion of is inserted and fitted into said second reinforcing engagement concave portion. The plate member joining structure according to any one of claims 7 to 9, wherein the second joining hole is formed so as to be separated from at least one side surface of the member to be joined. 11. The guide surface of the first leg that comes into contact when the first leg is inserted into the first opening of the first joint hole is formed into a curved surface with a substantially arc-shaped cross section. The joining structure of the plate material according to the item. A cabinet comprising the first plate member and the second plate member joined by the plate member joining structure according to any one of claims 7 to 11. In a plate material joining method for joining an end face of a second plate material to a main plane of a first plate material,
A first opening extending in the in-plane direction of the main plane and opening in the main plane, and a first joining hole having a first engaging recess provided inside the first opening The first plate material having
a second opening extending in an in-plane direction parallel to the length direction of the end face of the main plane and opening in the main plane; The second joint is formed by members to be joined which have a substantially C-shaped cross section and are open to the outside, both ends of which are elastically deformable to the outside are bent inward, and are fitted together along the length direction. the second plate member having a second joint hole provided with two engaging recesses;
A first leg portion and a second leg portion protruding in two substantially perpendicular directions from the joining member main body portion, and a first engagement provided at the tip of the first leg portion and capable of being fitted into the first engagement concave portion. a convex portion, a second engaging convex portion which is provided at the tip of the second leg portion through the constricted portion so as to be wider in the thickness direction than the constricted portion, and which can be fitted into the second engaging concave portion; using a joining member having
The first leg portion and the first engaging convex portion of the joint member are inserted through the first opening while rotating the joint member toward the main plane of the first plate member, The engaging convex portion is fitted into the first engaging concave portion, and the second leg portion and the second engaging convex portion of the joint member are connected to each other so that the main plane of the second plate member is engaged with the joint member. A method of joining plate members, comprising: inserting the plate member from the second opening while pushing the plate member toward the plate member so as to fit the second engaging convex portion into the second engaging concave portion.

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