JPH10152900A - Joint member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joint member which can easily join long building materials and which can ensure a sufficient joint strength. SOLUTION: A joint member 50 for joining long building materials 21, 41 formed therein longitudinally extending hollow parts 29, together, is composed of a body part 51 laid along end parts of the long building materials 21, 41, and joint protrusions 52, 53 which are projected from the body part 51 and which can be fitted in the hollow parts 29 of the long building materials 21, 41. With this arrangement, the long building material can be rapidly coupled together end-to-end only through the joint protrusions 52, 53 and the body part 51 by press-fitting the joint protrusions 52, 53 into the hollow parts 29 of the long building materials 21, 41 with a sufficient joint strength.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint member, and more particularly, to a joint member for connecting a plurality of long building materials having a hollow portion penetrating in a longitudinal direction.

[0002]

2. Description of the Related Art Conventionally, building materials made of synthetic resin having excellent moldability and water resistance have been used in bathrooms and kitchens of houses and the like. In recent years, building materials that incorporate wood texture by mixing wood powder with synthetic resin have become widespread.Because they have both the advantages of wood and the advantages of synthetic resin, not only water-related equipment but also doors Interior materials such as stairs and surroundings, furniture and the like are also widely used. Building materials made of synthetic resin are generally formed in a hollow shape in order to reduce the weight and material. Of these, those formed into a long plate shape are provided with a plurality of hollow portions penetrating in the longitudinal direction and formed in a cross-sectional shape to secure the strength.

When such plate-like long building materials are juxtaposed, their side end surfaces are fitted with concaves and convexes, and are connected and fixed using fasteners such as nails and screws. Further, when connecting long building materials at right angles in order to assemble a door frame or the like, the end face of one building material is abutted against the other building material and connected and fixed with screws or the like.

[0004]

However, since a long building material has a plurality of hollow portions, a sufficient joining property cannot be obtained even if a screw is tightened or a nail is driven. Further, even if the adhesive is used in combination, there is a possibility that a gap may occur before the adhesive dries, so that the mutual position of the long building materials must be maintained in a desired state until the joining is completed. It had to be troublesome.

An object of the present invention is to provide a joint member which can easily join long building materials and can secure sufficient joining strength.

[0006]

SUMMARY OF THE INVENTION The present invention will be described with reference to the drawings, in which a joint member for connecting a plurality of long building materials (21, 41, 63) having a hollow portion 29 penetrating in a longitudinal direction is provided. 50, 70, and 80, main bodies 51, 71, and 81 installed at the ends of the long building material, and inserted into the hollows of the long building materials protruding from the main body. Mating projections (52, 53, 72, 73,
82, 83).

According to the present invention, when the joining projections projecting from the main body are inserted and fitted into the hollow portions of the long building materials, the long building materials are connected to each other through the joining projections and the main body. It becomes possible to connect with the part. At this time, since the joining projection is inserted and fitted into the hollow portion, the long building materials can be reliably joined with sufficient joining strength. In addition, since the positioning and connection of the long building materials can be performed at the same time only by inserting and fitting the joining projection into the hollow portion, the joining can be performed quickly and easily. With these, the above object is achieved.

Although the shape of the above-mentioned main body portion is arbitrary, the main body portion has a bonding surface (51) which is in contact with the end face of each long building material.
A, 51B), and it is preferable that the joining surface is provided with a joining projection.

With this configuration, the joining surface of the main body and the end surface of the long building material can be connected and fixed by fasteners such as screws or nails, so that the joining property can be further improved.

The joint surface may be provided in accordance with the joint angle of the long building material. The main body portion has two joint surfaces which are adjacent at right angles, and the joint projections of these two joint surfaces are mutually connected. The angle may be 90 degrees.

[0011] With this configuration, the long building material can be joined at a right angle only by fitting the hollow portions of the long building material into the joining protrusions on the joining surfaces, respectively. Even long building materials can be framed reliably and easily.

Further, in this case, the joining projection of one joining surface is provided so that the two joining surfaces protrude substantially flush with the other joining surface along the adjacent corner 51C, and the other joining surface is provided. It is desirable that the connecting projection is protruded at a position where the long building material inserted and fitted into the connecting projection is substantially flush with one of the connecting surfaces.

[0013] According to this structure, the long building material inserted and fitted into the joining projection on the other joining surface is substantially flush with one joining surface. When the long building material is fitted, a part of the end surface comes into contact with the long building material fitted to the joining projection on the other joining surface, and a pair of long building materials In addition to being able to be connected to each other without gaps, the corners of the two joining surfaces can be reliably covered.

Further, it is desirable that the joining projection is formed to be tapered. With this configuration, the joining protrusion can be easily inserted into the hollow portion, so that the joining operation can be facilitated.

The surface of the joining protrusion may be formed flat, but it is preferable that the surface of the joining protrusion is formed with irregularities. If such irregularities are provided, the joining projection is securely locked in the hollow portion and becomes difficult to come off, so that the joining strength of the long building material can be increased.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a door 10 inserted into a partition wall 1 that partitions the inside of a building. The door 10 includes a pair of vertical frames 1 extending from a ceiling surface 2 to a floor surface 3.
A gate-shaped door frame 14 including a horizontal frame 13 connecting upper ends of the vertical frames 11 and 12;
4 and a door body 15 fitted therein.

As shown in FIG. 2, the vertical frame 11 includes a vertical frame main body 21 as a long building material that covers the side end surface of the partition panel 4 constituting the partition wall 1, and a width direction of the vertical frame main body 21 ( Vertical frame exterior members 22A and 23 are provided at both ends of the partition panel 4 (in the thickness direction). In addition,
The partition panel 4 is formed by stretching a wall material 6 on both sides of a core material 5 assembled in a rectangular frame shape. The vertical frame body 21 includes a long member 24 formed by molding a synthetic resin containing wood flour into a plate shape,
And a joining material 25 made of a wood material such as plywood attached to the surface of the long member 24 on the partition panel 4 side. The partition panel passes through the long member 24 and the joining material 25. 4 is fixed to the partition panel 4 by fasteners such as screws 7 reaching the core material 5. The vertical frame main body 21 may be joined to the partition panel 4 using other joining means such as an adhesive.

A pair of holding portions 26 project from the surface of the long member 24 on the side of the partition panel 4 along the longitudinal direction thereof, and the above-mentioned bonding material 25 is fitted between the holding portions 26. . Each holding portion 26 is provided with a connecting projection 27 protruding toward the widthwise end of the long member 24, and these connecting projections 27 are respectively attached to the vertical frame exterior members 22A and 23A.
Are fitted. Like the long member 24, these vertical frame exterior members 22A and 23 are made of a synthetic resin mixed with wood flour, and are formed hollow so as to reduce the weight and material. The elongated member 24 also includes a plurality of hollow portions 29 penetrating in the longitudinal direction. These hollow portions 29 have a substantially rectangular cross-sectional shape. In the present embodiment, four hollow portions 29 are arranged in a line in the width direction of the long member 24.

The vertical frame 12 facing the vertical frame 11
Has substantially the same structure as the vertical frame 11, and is configured by members common to the vertical frame 11. However, in the vertical frame 12,
The vertical frame exterior member 22B corresponding to the vertical frame exterior member 22A of the vertical frame 11 has a shape that protrudes more largely on the surface of the wall material 6 than the vertical frame exterior member 22A.

At the upper ends of the pair of vertical frames 11, 12, a horizontal frame 13 as shown in FIG. The horizontal frame 13 is fixed to the ceiling surface 2 via a pair of ceiling receiving members 8 fixed to the ceiling surface 2 for installing the partition panel 4 (see FIG. 2). Adjusting members 31A and 31A are respectively provided on both sides of these ceiling receiving members 8 along the longitudinal direction.
B is provided, and a plate-like lower mounting member 32 is bridged between lower ends of these adjusting members 31A and 31B. The adjusting member 31 above the lower mounting member 32 is provided on both side surfaces of the lower mounting member 32.
Exterior mounting members 33A and 33B straddling A and 31B are respectively mounted, and a mounting plate 34 is joined to lower surfaces of the exterior mounting members 33A and 33B and the lower mounting member 32.

The horizontal frame 13 includes a horizontal frame main body 41 as a long building material that covers the mounting plate 34 described above, and the horizontal frame main body 41.
Lateral frame exterior receiving portions 42, 43 provided at both ends in the width direction along the longitudinal direction, and horizontal frame exterior members 44, 4 engaged with these lateral frame exterior receiving portions 42, 43, respectively.
5 is provided. The horizontal frame main body 41 has substantially the same structure as the above-described vertical frame main body 21 and differs only in that the longitudinal dimension is shorter than the vertical frame main body 21. Therefore, the same components as those in FIG. The reference numerals are attached, and the description is omitted or simplified. The horizontal frame main body 41 is fixed to the ceiling surface 2 by fasteners such as screws 9 that penetrate the long member 24 and the joining material 25 and reach the mounting plate 34 and the lower mounting member 32. In addition, other joining means such as an adhesive may be used together for joining the horizontal frame main body 41.

Each of the joining projections 27 projecting from the holding portion 26 of the long member 24 has a horizontal frame exterior receiving portion 42, 4 respectively.
A joining concave portion 46 formed at the lower end of 3 is fitted. These horizontal frame exterior receiving portions 42 and 43 are planar members whose upper ends reach the ceiling surface 2. The ceiling receiving member 8, the adjusting members 31 A and 31 B, the mounting members 32, 33 A and 33 B, and the mounting plate 34 are attached from both sides. It is installed to cover. Of these, the horizontal frame exterior receiving member 42 is locked with a horizontal frame exterior member 44 covering the same, and similarly, the horizontal frame exterior receiving member 43 is locked with a horizontal frame exterior member 45 covering the same. . A plurality of grooves 47 extending in the longitudinal direction are formed in the lateral frame exterior members 44 and 45, respectively, and these grooves 47 can be engaged with the lateral frame exterior receiving portions 42 and 43. In addition, these grooves 47 reduce the weight and material of the horizontal frame exterior members 44 and 45. Note that these horizontal frame exterior members 44 and 45 and the horizontal frame exterior receiving portions 42,
43 is formed of a synthetic resin containing wood flour, similarly to the long member 24.

The horizontal frame body 41 of the horizontal frame 13 thus configured is connected to the vertical frame main body 21 of the vertical frame 11 (see FIG. 2) at a right angle via a joint member 50 as shown in FIG. ing. The joint member 50 according to the present embodiment includes a door frame 14 that is an end of each of the horizontal frame main body 41 and the vertical frame main body 21.
(Refer to FIG. 1), a main body 51 installed at a corner of the main body 51, and a long member 24 protruding from the main body 51 and being provided with the vertical frame main body 21.
A first joining projection 52 that can be inserted and fitted into the hollow portion 29 of
The elongated member 24 protruding from the main body 51 and being provided in the horizontal frame main body 41.
And a second joining projection 53 that can be inserted and fitted into the hollow portion 29.

As shown in FIG. 5, the main body 51 is formed in a hollow box shape, and has a vertical frame connecting surface 51A and a horizontal frame main body 41 as a bonding surface which is in contact with an end surface of the vertical frame main body 21. A horizontal frame joint surface 51B is provided as a joint surface that is in contact with the end surface. These joining surfaces 51A and 51B are adjacent to each other at right angles, and a joining hole 55 is formed in each of the joining surfaces 51A and 51B. Screws 54 and the like which are screwed into the bonding material 25 from the inside of the main body 51 are inserted into these bonding holes 55, and the vertical frame bonding surface 51A, the vertical frame main body 21, and the horizontal frame bonding surface 51B are formed by the screws 54. The horizontal frame main bodies 41 are respectively connected. An operation hole 56 for performing the screw 54 fixing operation or the like is formed in the main body 51. A plurality of reinforcing ribs 57 (see FIG. 4) are provided inside the main body 51.

The vertical frame joining surface 51A of the main body 51 as described above.
Is provided with the first joining projection 52 described above, and similarly,
A second joining projection 53 is provided to project from the horizontal frame joining surface 51B. The first and second joining projections 52 and 53 are provided in the same number as the hollow portions 29 formed in the long member 24, and in the present embodiment, four each are provided, and form 90 degrees with each other. The first joining projections 52 are juxtaposed so that the vertical frame joining surface 51A and the horizontal frame joining surface 51B are flush with the horizontal frame joining surface 51B along the adjacent corner 51C. The second joint projection 53 is located at a position where the horizontal frame main body 41 inserted and fitted into the second joint projection 53 is substantially flush with the vertical frame joint surface 51A, that is, slightly above the corner 51C. It is juxtaposed. Thereby, the vertical frame main body 21 and the horizontal frame main body 41
The horizontal frame main body 41 is joined in a state where a part of the end face of the vertical frame main body 21 is in contact with the horizontal frame main body 41.

The joining projections 52 and 53 have substantially the same rectangular outer shape (cross section) as the hollow portion 29 (see FIG. 4), and can be pressed into the hollow portion 29 with almost no gap. . The proximal end 58 of each joining projection 52, 53 has
As shown in FIG. 5, a slope is formed so as to become thicker toward the main body portion 51, thereby forming an interference in fitting the joining projections 52 and 53 and the hollow portion 29.
By this interference, the joining projections 52 and 53 are moved to the base end 5.
By simply press-fitting into the hollow portion 29 up to 8 and tightening with the screw 54, the joining projections 52, 53 and the hollow portion 29 can be positioned relative to each other, and the joining projections 52, 53 and the hollow portion 29 can be firmly fitted. It has become. In addition, the tips of the joining projections 52 and 53 are tapered so that they can be easily inserted into the hollow portion 29. Each of the joining projections 52 and 53 is provided with a concave portion 59 which is opened at a tip end in order to reduce the weight and material.

Although not shown, the vertical frame body 21 of the vertical frame 12 has the same structure as the above-described vertical frame 11, and
It is connected and fixed at a right angle to the other end of the connector 1 via a joint member 50.

In the thus constructed embodiment, the door frame 14 is assembled and constructed according to the following procedure. First, the elongated member 24 and the joining material 25 are integrated beforehand and the horizontal frame body 41 is assembled. And a pair of vertical frame main bodies 21 are formed in advance. The long member 24 can be manufactured by cutting a long member formed by extrusion or the like into a predetermined length.

Next, the horizontal frame body 41 and the pair of vertical frame bodies 21
And are connected and fixed in a gate shape. That is, the joint member 5 is inserted into the hollow portion 29 of the long member 24 of the vertical frame body 21 from the upper end side.
After the first joining projection 52 is pressed into the vicinity of the base end portion 58, the screw 54 is inserted into the joining hole 55 of the vertical frame joining surface 51A from the inside of the main body 51 through the working hole 56, and joined. Screw it into the plate 25 and tighten it. Thereby, the vertical frame joining surface 5
1A and the end faces of the vertical frame main body 21 approach each other, so that the base end 58 of the first joining projection 52 is pressed into the hollow portion 29, and the end faces of the vertical frame joining surface 51A and the vertical frame main body 21 remain as they are. When the screw 54 is tightened until the
The base end portion 58 is completely press-fitted into the hollow portion 29 so that the first joining projection 52 and the hollow portion 29 are firmly fitted.

Similarly, the second joint projection 53 is press-fitted into the hollow portion 29 of the long member 24 of the horizontal frame main body 41, and the horizontal frame bonding surface 51B and the horizontal frame main body 41 are tightened by the screw 54, thereby forming the second joint projection 53. The two joining projections 53 are pressed into the hollow portion 29 up to the base end portion 58. The vertical frame body 21 and the horizontal frame body 4
In the connection work with 1, the connecting projections 52 and 53 may be inserted into the vertical frame main body 21 and the horizontal frame main body 41, respectively, assembled into a gate shape, and then tightened with the screw 54. Further, first, the second joining projection 53 is press-fitted into the horizontal frame main body 41 and then the first joining projection 52 is inserted into the vertical frame main body 21.
May be press-fitted.

Then, the integrated horizontal frame main body 41 and the pair of vertical frame main bodies 21 are fitted into the partition wall 1, and each vertical frame main body 21 is screwed with the core member 5 of the partition panel 4.
And the horizontal frame main body 41 is fixed to the mounting plate 34 and the lower mounting member 32 previously set on the ceiling surface 2 using the screws 9.

Thereafter, each vertical frame body 21 of the vertical frames 11 and 12
The vertical frame exterior members 22A, 22
B, 23 are fitted in the joint recesses 28 to form the vertical frame exterior member 2.
Attach 2A, 22B and 23. Similarly, each of the joint protrusions 27 of the horizontal frame body 41 is provided with the horizontal frame exterior receiving portion 4.
The horizontal frame exterior receiving portions 42, 43 are installed by fitting the joining concave portions 46 of the horizontal frame exterior receiving portions 42, 43 to each other.
3 are attached with horizontal frame exterior members 44 and 45, respectively.

According to this embodiment, the following effects can be obtained. That is, the joint member 50 of the present embodiment includes the respective ends of the vertical frame main body 21 and the horizontal frame main body 41,
That is, the main body 51 installed at the corner of the door frame 14,
Since there are joining projections 52 and 53 projecting from the main body 51 and insertable into the hollow portions 29 of the long members 24 of the vertical frame main body 21 and the horizontal frame main body 41, the first joining projections are provided. 52 is inserted into the hollow portion 29 of the vertical frame main body 21, and the second joining projection 53 is inserted and fitted into the hollow portion 29 of the horizontal frame main body 41. Thus, the vertical frame main body 21 and the horizontal frame main body 41 can be connected at the ends. At this time, the first and second joining projections 52, 5
3 are each press-fitted into the hollow portion 29 and fitted.
The vertical frame main body 21 and the horizontal frame main body 41 can be reliably joined with sufficient joining strength. Also, the first and second joining projections 52, 5
Since the vertical frame main body 21 and the horizontal frame main body 41 can be simultaneously positioned and connected only by inserting and fitting the respective 3 into the hollow portions 29, quick and easy joining can be achieved.

The main body 51 has a vertical frame connecting surface 51A abutting on the end surface of the vertical frame main body 21 and a horizontal frame connecting surface 51B abutting on the end surface of the horizontal frame main body 41. Since the joint surface 51A and the vertical frame main body 21 and the horizontal frame joint surface 51B and the horizontal frame main body 41 can be connected and fixed by fasteners such as screws 54, the jointability can be further enhanced.

The vertical frame joining surface 51A and the horizontal frame joining surface 51
B and the two joining surfaces 51A, 5A
1B, the first joining projection 52 and the second joining projection 53 are at 90 degrees to each other, so the first joining projection 52 is attached to the vertical frame body 21 and the second joining projection 5
The vertical frame main body 21 and the horizontal frame main body 41 can be joined at right angles only by fitting the horizontal frame main bodies 41 to the respective 3. Therefore, since the vertical frame main body 21 and the horizontal frame main body 41 can be easily framed, the door frame 14 can be easily assembled.

The first joining projection 52 of the vertical frame joining surface 51A is projected substantially flush with the horizontal frame joining surface 52B along the corner 51C where the two joining surfaces 51A and 51B are adjacent to each other.
The second joint protrusion 53 of the horizontal frame joint surface 51B is provided at a position where the horizontal frame main body 41 inserted and fitted into the second joint protrusion 53 is substantially flush with the vertical frame joint surface 51A. Therefore, when the vertical frame main body 21 is fitted to the first joining projection 52, a part of the end surface comes into contact with the horizontal frame main body 41 fitted to the second joining projection 53, The vertical frame main body 21 and the horizontal frame main body 41 can be connected to each other without gaps, and the corners 51C of the two joint surfaces 51A and 51B can be surely covered, and a good appearance can be secured.

Further, since the joining projections 52 and 53 are tapered, they can be easily inserted into the hollow portion 29 and the joining operation can be facilitated. In addition, the base end portions 58 of the joining protrusions 52 and 53 are provided with a slope that becomes thicker toward the main body portion 51, and the interference between the fitting of the joining protrusions 52 and 53 and the hollow portion 29 is formed. Each of the joining projections 52.53 and the hollow portion 29 can be firmly fitted at the correct mutual position. Therefore, the joining projections 52 and 53 and the hollow portion 2
Since it is not necessary to strictly control these dimensional tolerances in order to harden the fitting with the projections 9,
Since the dimensional tolerances of 2, 53 do not have to be strict, the joint member 50 can be manufactured easily and at low cost.

It should be noted that the present invention is not limited to the above-described embodiment, but includes other configurations that can achieve the object of the present invention, and also includes the following modifications.
That is, although the surfaces of the joining projections 52 and 53 of the above-described embodiment are formed smoothly, for example, as shown in FIG. 7, irregularities formed by a plurality of grooves 61 may be formed on the surface. By doing so, the joining projections 52 and 53 are securely locked to the hollow portion 29 and are difficult to be removed, so that the joining strength between the vertical frame main body 21 and the horizontal frame main body 41 can be increased.

In the above embodiment, since the four hollow portions 29 are formed in each of the vertical frame main body 21 and the horizontal frame main body 41, the first and second joint projections 5 of the joint member 50 are formed.
Although four are provided for each of the members 2 and 53, the number of the joint protrusions 52 and 53 may be appropriately increased or decreased according to the number of hollow portions of the long building material to be joined. Also, the joining projection 52,
The shape of 53 is also arbitrary as long as it can be inserted and fitted into the hollow portion of the long building material to be joined.

The vertical frame joining surface 5 of the main body 51 of the above embodiment
1A and the horizontal frame joint surface 51B were adjacent at right angles,
The angle may be appropriately set according to the angle at which the vertical frame main body 21 and the horizontal frame main body 41 are joined. In the above embodiment, the joint member 50 is used to connect the two long building materials of the vertical frame main body 21 and the horizontal frame main body 41. Therefore, the two joining surfaces 51A and 51B are formed on the main body 51. When connecting two or more long building materials, a joint surface and a joint protrusion may be provided according to the number and the joint angle.

In the above embodiment, the joint member 50 is used to join the vertical frame body 21 and the horizontal frame body 41 at right angles. However, the connection angle of the long building material to which the joint member of the present invention is connected is limited to a right angle. Instead, for example, as shown in FIG. 8, first and second joining projections 72 and 73 are respectively provided on both side surfaces of a substantially rectangular parallelepiped main body 71 to form a joint member 70. The plate-shaped member 63 as a long building material may be connected and fixed in series via 70. Alternatively, as shown in FIG. 9, first and second joining projections 82 and 83 are juxtaposed on one side surface of a main body 81 to form a joint member 80, and a long building material is provided via the joint member 80. May be connected and fixed in parallel. In short, the shape and size of the main body and the joining projections constituting the joint member, the positions where the joining projections are provided, and the like may be appropriately set according to the long building material to be joined.

Although the door frame 14 of the above embodiment reaches the ceiling surface 2, the door frame 14 may not reach the ceiling surface 2, and a hanging wall is formed between the door frame and the ceiling surface 2. May be.

In the above embodiment, the joint member 50 is used to join the vertical frame main body 21 and the horizontal frame main body 41 constituting the door frame 14, but the long building material to be connected is composed of the vertical frame main body 21 and the horizontal frame main body. The invention is not limited to the frame main body 41, and can be applied to, for example, connection of various long building materials such as a window frame material, a floor material, a ceiling material, and a wall material. In short, if the long building material connected by the joint member has a hollow portion penetrating in the longitudinal direction, its shape and size,
The material and the joining angle are not limited.

[0044]

As described above, according to the joint member of the present invention, the joint that can be inserted and fitted into the hollow portion of each long building material to the main body portion installed at the end of the long building material. Since the projecting projections are provided in a protruding manner, only by inserting and fitting the joining projections into the hollow portions of the long building materials, the positioning and connection of the long building materials can be performed at the same time, so that the joining can be performed quickly and easily. . In addition, since the joining projection is inserted and fitted into the hollow portion, the long building materials can be reliably joined with sufficient joining strength.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a sectional view taken along line III-III of FIG. 1;

FIG. 4 is an exploded perspective view showing the connection structure of the vertical frame main body and the horizontal frame main body using the joint member of the embodiment in a partially broken manner.

FIG. 5 is a sectional view showing a main part of a vertical frame main body and a horizontal frame main body connected via the joint member of the embodiment.

FIG. 6 is a view of the joint member of the embodiment as viewed from a side of a horizontal frame joint surface.

FIG. 7 is a view showing another joint member of the present invention.

FIG. 8 is an exploded perspective view showing a connecting structure of long building materials connected by using still another joint member of the present invention.

FIG. 9 is an exploded perspective view showing a connection structure of long building materials connected by using still another joint member of the present invention.

[Explanation of symbols]

 21 Vertical frame body (long building material) 29 Hollow part 41 Horizontal frame body (long building material) 50, 70, 80 Joint members 51, 71, 81 Main body 51A Vertical frame joining surface (joining surface) 51B Horizontal frame joining Surface (joining surface) 52, 72, 82 First joining projection (joining projection) 53, 73, 83 Second joining projection (joining projection) 63 Plate member (long building material)

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI E04B 2/74 561 E04B 2/74 561B E06B 3/96 E06B 3/96 B F16B 7/20 F16B 7/20 CD

Claims (6)

[Claims] 1. A joint member for connecting a plurality of long building materials having a hollow portion penetrating in a longitudinal direction, the body member being provided at an end of the long building material, and A joint member, which has a joining projection that is protruded and that can be inserted and fitted into a hollow portion of each of the long building materials. 2. The joint member according to claim 1, wherein the main body has a joint surface that is in contact with an end surface of each of the long building materials, and the joint protrusion is provided on the joint surface. A joint member. 3. The joint member according to claim 2, wherein the main body portion includes two joining surfaces that are adjacent at right angles, and the joining projections of these two joining surfaces are at 90 degrees to each other. A joint member. 4. The joint member according to claim 3, wherein the joining projections on one of the joining surfaces are substantially flush with the other joining surface along a corner where the two joining surfaces are adjacent to each other. The projecting projections for joining on the other joining surface are provided so that the long building material inserted and fitted into the joining projections is projected at a position substantially flush with the one joining surface. Characterized joint members. 5. The joint member according to claim 1, wherein the joint protrusion is tapered. 6. The joint member according to claim 1, wherein a surface of said joining projection has irregularities.