JP2002021443A - Coupling structure for wooden product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coupling structure for wooden products, capable of realizing the strengthening of the coupling between the wooden products such as a stile/rail material and the like. SOLUTION: The coupling structure for the wooden products, wherein the wooden rail material 1 and the wooden stile material 2 are butted against each other for integration, is constituted as follows: the stile material 2 is formed with an injection groove 2b opened outward when the rail material 1 and the stile material 2 are butted against each other; a joint 3, fitted into the fitting holes 1d and 2c made in the respective butting surfaces of the rail material 1 and the stile material 2, is disposed across the injection groove 2b; and the joint 3 introduces the adhesive resin 4 injected into the injection groove 2b for the purpose of allowing the adhesive resin 4 to permeate up to the inner surfaces of the fitting holes 1d and 2c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting structure for wooden products, for example, which can firmly connect frame members of doors for interior and exterior use.

[0002]

2. Description of the Related Art A Western-style door at the entrance and an interior door have an outer frame composed of a plurality of frames constituting a door frame. Conventionally, a door plate or a glass plate is incorporated in these frames. Widely used from. Most of the frames are formed to have various patterns in order to have a decorative product, and so-called dowel fitting and an adhesive are generally applied for connecting and joining the frames. The dowel fitting is a combination of a male dowel with a circular cross section protruding from one frame and a dowel hole opened in the other frame, and is used for assembling not only frame materials but also various wood products. . In such a dowel fitting, the male dowels are fitted into the dowel holes so that the frames are connected to each other, and the bonding strength can be increased by applying an adhesive.

[0003]

In assembling a wooden product by dowel fitting, an adhesive is also used, but the fitting force between the male dowel and the dowel hole governs the joining strength. However, since the outer diameter of the male dowel and the inner diameter of the dowel hole must be machined with high precision, the machining tends to be cumbersome. Further, if the processing accuracy is low, the dowels are loosened, so that a strong connection between wooden members such as a frame cannot be achieved. Further, since the male dowel is fitted into the dowel hole, even if the adhesive is applied or injected onto the outer peripheral surface of the male dowel or the inner peripheral surface of the dowel hole, the adhesive layer becomes extremely thin and its mechanical properties are reduced. High adhesion cannot be maintained.

[0004] As described above, in the conventional connection of wooden products such as frame materials by dowel fitting, if the processing accuracy of the male dowel or the dowel hole is low, a strong connection cannot be made, and the bonding with an adhesive remains insufficient. Often.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a wooden product connection structure that can more strongly connect wooden products such as frame materials.

[0006]

According to the present invention, there is provided a connecting structure for a wooden product in which a first wooden member and a second wooden member are brought into contact with each other and integrated with each other. An injection groove is formed which opens to the outside when the first member and the second member are butted, and a joint which fits into a fitting hole formed in a mating surface of each of the first member and the second member is formed by the injection groove. And the joint is configured to introduce the adhesive resin injected into the injection groove to infiltrate the adhesive resin to the inner surface of the fitting hole.

According to the present invention, in addition to the connection holding by the joint fitted into the fitting hole, the adhesive resin injected from the outside infiltrates from the injection groove to the inner surface of the fitting hole via the joint. In addition to the bonding of only the injection groove portion, it is possible to form a bonding area including the fitting hole, so that high strength and stable connection of wood products can be achieved.

[0008] In the present invention, the joint may be a hollow body having a cutout opening communicating with the injection groove on the peripheral surface and opening toward the inner peripheral surface of the fitting groove.

In this configuration, the adhesive resin can be introduced into the hollow joint through the notch opening from the injection groove and the adhesive resin can be infiltrated into the inner peripheral surface of the fitting groove. At the same time, connection on a wide joint surface by the adhesive resin becomes possible.

[0010] Further, a storage portion which is open at the abutting surface of each of the first member and the second member is formed, and the storage portion is provided with a reinforcing material incorporated in a cross-linked state, and a space between the storage portion and the reinforcing material is provided. It is good also as composition which an adhesive resin can infiltrate in the direction of the above-mentioned joint.

[0011] In this configuration, the reinforcing member is made of the first member and the second member.
Since the members are integrated into the respective storage portions in a cross-linked state and integrally joined by an adhesive resin, the connection strength is improved and the durability against bending stress is improved.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view showing an example of a connection structure of wooden products according to an embodiment of the present invention, showing connection of a door frame member, and FIG. 2 is a bottom view when the frame members are connected. .

In the figure, a horizontal frame 1 as a first member and a vertical frame 2 as a second member connected thereto are connected as shown in FIG. That is, the horizontal frame material 1 takes a horizontal posture, and the vertical frame material is vertically connected to the tree end surface of the horizontal frame material 1.

The horizontal frame 1 has a holding groove 1a for inserting a plywood door plate, a glass plate or the like on an upper surface thereof, and a wooden end surface 1b is formed in a curved concave surface. At the lower end of the wooden end surface 1b, a vertical frame member 2 and a projection 1c for positioning are formed, and at the upper end side, a fitting hole 1 for inserting a joint 3 is provided.
d is opened in the horizontal direction, and a guide piece 1e of the joint is formed above the fitting hole 1d. The thickness of the projection 1c and the guide piece 1e is substantially the same as the opening width of the holding groove 1a.

The vertical frame member 2 has an outer diameter that can enter the wood end surface 1b of the horizontal frame member 1, and has a holding groove 2a cut in the vertical direction. The holding groove 2a has the same opening width as the holding groove 1a of the horizontal frame material 1, and as shown in FIG.
(Not shown in FIG. 2) enters the holding groove 2a. The holding groove 2a is located on the inner side (left end in FIG. 2) of the holding groove 2a.
An injection groove 2b of the adhesive smaller than the opening width of the opening is formed. The holding groove 2a and the injection groove 2b are formed over the entire length of the vertical frame member 2 by a tool for forming the vertical frame member 2. The vertical frame member 2 has a joint 3 so that the bottom surface of the vertical frame member 2 is aligned with the fitting hole 1d of the horizontal frame member 1 when the bottom surface is aligned with the bottom surface of the horizontal frame member 1.
The fitting hole 2c is opened.

3A and 3B show details of the joint 3, wherein FIG. 3A is a perspective view, and FIG. 3B is a sectional view taken along the line AA in FIG.

The joint 3 is made of steel having an appropriate thickness and is wound into a substantially cylindrical shape, and its outer diameter is fitted exactly into the fitting holes 1d and 2c of the horizontal frame member 1 and the vertical frame member 2. It was a degree. The outer peripheral surface is formed such that a notch opening 3a is formed over the entire length in the axial direction. The joint 3 is provided with fitting holes 1d, 2c of either the horizontal frame material 1 or the vertical frame material 2.
And set it so that the notch opening 3a faces downward.

In the above configuration, the horizontal frame material 1 and the vertical frame material 2
For example, the joint 3 is fitted and fixed to the fitting hole 1d of the horizontal frame material 1 and the fitting 3 is fitted to the fitting hole 2c of the vertical frame material 2 as shown in FIG. Perform by inserting. Thereby, as shown in FIG. 4, the horizontal frame material 1 and the vertical frame material 2 are connected via the joint 3 while performing vertical alignment. At the time of this connection, as described above,
The projection 1c and the guide piece 1e are immersed in the holding groove 2a of the vertical frame material 2.

Here, even when the horizontal frame member 1 and the vertical frame member 2 are connected by the joint 3, the injection groove 2b of the vertical frame member 2 is opened on the bottom surface as shown in FIG. Therefore, FIG.
As shown in the figure, the adhesive resin 4 such as urethane resin can be injected in the direction of the arrow from the opening at the lower end of the injection groove 2b. The adhesive resin 4 is filled into the space between the wood end faces 1d of the horizontal frame material 1 from the injection groove 2b, is injected into the joint 3, and infiltrates into the horizontal frame material 1 and the vertical frame material 2. I will do it. That is, as shown in FIG. 5 (longitudinal sectional view taken along the line BB in FIG. 4), the joint 3 is incorporated so that the cutout opening 3a faces downward, so that the joint 3 has an adhesive property from the injection groove 2b. The resin 4 is injected into the joint 3 from the notch opening 3a. And the joint 3 is a horizontal frame material 1 as shown in FIG.
And the vertical frame material 2, the adhesive resin 4 is injected into both the horizontal frame material 1 and the vertical frame material 2, and the adhesive resin 4 is fitted from the cutout opening 3 a. Hole 1d,
Infiltrate the inner peripheral surface of 2c. At the same time, as shown in FIG. 4, the adhesive resin 4 infiltrates the horizontal frame material 1 along the wood end face 1b and the vertical frame material 2 along the injection groove 2b, thereby obtaining a high bonding degree.

As described above, the horizontal frame material 1 and the vertical frame material 2 are joined by the joint 3 made of a metal such as steel, so that the horizontal frame material 1 and the vertical frame material 2 are vertically and depthwise in FIG. Joined without any deviation in direction. That is, due to the rigidity of the joint 3, the horizontal frame material 1 and the vertical frame material 2 are prevented from being deformed by bending and twisting in the vertical direction and the depth direction, and the joining strength is increased. In addition, the adhesive resin 4 is not only filled between the wood end surface 1b of the horizontal frame 1 and the injection groove 2b of the vertical frame 2 but also cross-linked so that the one injected into the joint 3 is cross-linked. The frame member 1 and the vertical frame member 2 are joined. Therefore, the joining surface of the adhesive resin 4 can be formed so as to be developed in the connecting direction of the horizontal frame member 1 and the vertical frame member 2, and a strong connection is possible.

FIG. 6 is a perspective view of a main part of a connection structure according to another embodiment. This example shows a connection structure of a horizontal frame member and a vertical frame member similarly to the one shown in FIGS. 1 to 5, and the same components as those in the previous example are designated by the same reference numerals and detailed description thereof will be made. Is omitted.

The horizontal frame member 1 has a larger height than that of the above-described example, and a protrusion 1c, a fitting hole 1d, and a guide piece 1e are formed on the end face 1b of the tree as in the above-described example.
On the other hand, the vertical frame member 2 is also provided with a fitting hole 2c at the same height as the fitting hole 1d of the horizontal frame member 1.

Here, in this embodiment, a substantially disc-shaped reinforcing plate 5 is incorporated in order to further stabilize the connection between the horizontal frame member 1 and the vertical frame member 2. The reinforcing plate 5 uses a metal plate such as an iron plate or a stainless steel plate. The horizontal frame member 1 and the vertical frame member 2 form substantially semicircular storage portions 6a and 6b into which the reinforcing plate 5 is inserted. These storage units 6
a and 6b are formed by counterbore, and the reinforcing plate 5
When the adhesive resin is injected into the opening cross section slightly wider than the thickness of the adhesive resin, the adhesive resin can penetrate between the surface of the reinforcing plate 5 and the inner surfaces of the storage portions 6a and 6b.

Even when such a reinforcing plate 5 is inserted into the storage portions 6a and 6b, the adhesive resin injected from the injection groove 2b allows the joint 3 to be inserted between the surface of the reinforcing plate 5 and the inner surfaces of the storage portions 6a and 6b. Part of it. Therefore,
The horizontal frame material 1 and the vertical frame material 2 are reinforced by the joint 3 and the reinforcing plate 5 and are firmly fixed by the adhesive resin inside the joint 3 and the surface of the reinforcing plate 5. In particular, the provision of the reinforcing plate 5 increases the area of the adhesive resin material,
Stable fixation is possible and the strength against bending is compensated.

In the above-described embodiment, the connection of the frame members has been described. However, the connection of other various wooden products can be handled by a similar structure.

[0027]

According to the present invention, it is possible to join a wooden product such as a frame material by using an adhesive resin that penetrates into a fitting hole through a joint, instead of using only the mating surface as a joining surface.
Strong and stable connection can be achieved as compared with the conventional connection by dowel fitting or the like. Therefore, even with a frame material used for a door or the like, the strength against external force can be increased, and the durability can be improved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a connection structure between a horizontal frame member and a vertical frame member according to an embodiment of the present invention.

FIG. 2 is a bottom view when a horizontal frame material and a vertical frame material are connected.

FIG. 3 shows details of the joint, (a) is a perspective view thereof,
FIG. 2B is a cross-sectional view taken along line AA of FIG.

FIG. 4 is a cutaway front view showing a connection structure between a horizontal frame and a vertical frame using a joint and an adhesive resin.

FIG. 5 is a longitudinal sectional view taken along line BB of FIG. 4;

FIG. 6 is an exploded perspective view showing an example of a connection structure using a reinforcing plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Side frame material (1st member) 1a Holding groove 1b Wood end surface 1c Projection 1d Fitting hole 1e Guide piece 2 Vertical frame material (2nd member) 2a Holding groove 2b Injection groove 2c Fitting hole 3 Joint 3a Notch opening 4 Adhesion Resin 5 Reinforcement plate 6a, 6b Storage section

Claims (3)

[Claims] 1. A wooden product connecting structure in which a first wooden member and a second wooden member are brought into contact with each other and integrated, and a first member and a second member are attached to at least one of the first and second members. Forming an injection groove that opens to the outside when butted, and arranging a joint that fits into a fitting hole formed in a mating surface of each of the first member and the second member so as to cross the injection groove, A joint structure for wooden products, wherein the joint is configured to introduce an adhesive resin injected into the injection groove to infiltrate the adhesive resin to an inner surface of the fitting hole. 2. The joint according to claim 1, wherein the joint is a hollow body having a cutout opening communicating with the injection groove on the peripheral surface and opening toward the inner peripheral surface of the fitting groove. Connection structure of the described wooden product. 3. A storage portion which is open at the abutting surface of each of the first member and the second member is formed, and the storage portion is provided with a reinforcing material incorporated in a cross-linked state, and a space between the storage portion and the reinforcing material is provided. 3. The connection structure for wooden products according to claim 1, wherein an adhesive resin is capable of infiltrating in a direction of the joint.