JP2001123632A - Joint material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joint material sealing water-tightly a joint between the external wall material end faces capable of preventing a seal material filled into a clearance from leaking out from a contact portion between the contact part of a base joint with an external wall material and the rear surface of the external all material. SOLUTION: This joint material for water tightly sealing a joint between external all material end faces comprises a base joint 20 having a recessed groove 24 formed of an external wall material contact part 21 and double side walls 22, having a space forming fin 2 and a hole 28 provided in each of the side walls 22, and having a fin 25 for sealing provided on the external wall material contact part 21 and a top joint 30 having a fitting projected piece 31 and a fin 32. The rear surface 50 of the external wall material is brought into contact with the external wall material contact part 21, and an external wall material end face 50a is brought in to contact with the space forming fin 26 so as to form a space 52, a wet sealing material 40 is filled into the recessed groove 24, the fitting projected piece 31 is fitted to the recessed groove 24, and the sealing material 40 is filled into the space 52 through the hole 28 so as to form the joint material. Thus, the sealing material 40 filled into the space 52 is prevented, by the sealing fin 25, from leaking out from a contact portion between the external wall material contact part 21 and the rear surface 50b of the external wall material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint material for sealing a joint formed between end faces of an outer wall material of a building.

[0002]

2. Description of the Related Art Joint materials disclosed in JP-A-9-291616 and JP-A-11-159015 are known. As shown in FIGS. 7 and 8, the joint material is a joint joint 1, a base joint 4 having a concave groove 3 in two side walls 2, and a top joint 7 having a fin piece 5 and a fitting convex piece 6.
And a sealing material 8 to be filled in the concave groove 3 of the base joint 4. The back surface 10a of the adjacent outer wall material 10 is attached to the joint joiner 1 of the base joint 4 so as to be in contact with the outer wall material 10, and the joint 11 is formed between the outer wall material end surfaces 10b. The groove 3 is filled with a sealing material 8. The sealing material 8 is fitted by fitting the fitting convex piece 6 of the top joint 7 into the concave groove 3, and the holes 9 of both side walls 2 forming the concave groove 3 are formed.
And filling the space 12 between the outer wall material end face 10b and the side wall 2 to make the joint between the outer wall material end faces watertight.

[0003]

In the joint material shown in FIG. 7, the sealing material 8 extruded into the space 12 may leak from the contact portion between the joint joiner 1 and the back surface 10a of the outer wall material. If the sealing material 8 leaks, the amount of the sealing material 8 filled in the space 12 becomes insufficient, and the watertightness of the joint is reduced.

[0004] In the joint material shown in Fig. 8, two fins 13 are provided near the outdoor side of the two side walls 2, and the two fins 13 are provided.
Since the space 12 is formed therebetween, the sealing material 8 extruded into the space 12 leaks into the room over one of the fins 13 on the room side. If the sealing material 8 leaks, the amount of the sealing material 8 filled in the space 12 becomes insufficient, and the watertightness of the joint is reduced.

In addition, in the joint material shown in FIG. 8, the space 12 is formed near the outdoor side away from the jointer 1, so that the sealing material 8 filled in the space 12 is positioned near the outdoor side. For this reason, the sealing material 8 is quickly deteriorated by wind, rain and sunlight, and the weather resistance is reduced.

Therefore, an object of the present invention is to provide a joint material which can solve the above-mentioned problems.

[0007]

According to a first aspect of the present invention, there is provided a joint material having a base joint, a top joint and a wet seal material for sealing a joint between outer wall material end faces, wherein the base joint is an in-plane joint. The outer wall material contact portion facing in the direction and the two side walls facing in the out-of-plane direction form a concave groove opened to the outdoor side, and the outer surface of each side wall is in contact with the outer wall material end face and in contact with the side wall and the outer wall material. A fin for space formation facing in an in-plane direction that forms a space between the portion and the end face of the outer wall material is provided, and a hole is formed closer to the room than the fin for space formation, and the outer wall material contact portion has an outer wall. In the shape having a fin for sealing facing the out-of-plane direction where the back surface of the material contacts,
The top joint has a fitting convex piece that fits into the concave groove of the base joint and pushes out the wet sealing material filled in the concave groove from the hole to fill the space, and a fin contacting between the outer wall material end faces. It is a joint material characterized by having the shape which has.

According to a second aspect of the present invention, in the first aspect, the hole is formed near the fin for forming a space, and the inner surface of the hole outside and the inner surface of the fin for forming the space are substantially flush with each other in the out-of-plane direction. It is a joint material.

According to a third aspect of the present invention, in the first or second aspect, the seal fin is a joint material which is oblique toward a side wall.

According to a fourth aspect of the present invention, in the first, second, or third aspect, a joint joiner is provided at an in-plane end of the outer wall material contacting portion, and the joint joiner and the outer wall material contacting portion are provided on a surface. It is a joint material that is continuous inward.

A fifth aspect of the present invention is the joint material according to the first, second, or third invention, wherein a joint joiner in an in-plane direction is provided on a back surface of the outer wall material contact portion via a mounting wall. .

[0012]

According to the first aspect of the present invention, since the back surface of the outer wall material is in contact with the sealing fin of the outer wall material contact portion, the sealing material filled in the space is in contact with the outer wall material back surface and the outer wall material contact portion. Leakage from the part can be prevented by the seal fin. Therefore,
Since a sufficient amount of the sealing material is filled in the space, the watertightness of the joint is improved.

According to the second aspect of the invention, when the fitting projection of the top joint is fitted into the concave groove of the base joint and the sealing material is pushed out of the hole to fill the space, the seal pushed out of the hole is used. The flow of the material toward the outdoor side is prevented by the fins for forming the space. Therefore, since the sealing material extruded from the hole is filled into the space as a flow toward the room side,
Leakage to the outdoor side from the contact portion between the space forming fin and the end face of the outer wall material is reduced.

According to the third aspect, leakage of the sealing material filled in the space can be more reliably prevented.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG.
A joint material is formed by the 0, the top joint 30 and the wet seal material 40, and the joint material 51 seals the joint 51 between the end faces 50 a of the outer wall material 50.

The specific shape of the base joint 20 will be described with reference to FIGS. In FIGS. 2 and 3, the X direction is defined as an out-of-plane direction (a direction facing the interior and exterior directions when attached to the skeleton), and the Y direction is defined as an in-plane direction (a direction orthogonal to the interior and exterior directions when attached to the skeleton). . The base joint 2
Reference numeral 0 denotes a plate-shaped outer wall material contact portion 21 having a predetermined width, thickness, and length, which faces in an in-plane direction, and the width of the outer wall material contact portion 21 at the front surface 21a (outside surface of the room outside). The outer wall material abutment portion 21 is provided with two side walls 22 integrally provided at the middle part in the direction, and an in-plane joint jointer 23 which is continuous with both end portions in the width direction of the outer wall material abutting portion 21. I have. The outer wall material abutting portion 21 and the two side walls 22 form a concave groove 24 that is open to the outside of the room in an out-of-plane direction. That is, in this embodiment, the jointer 23 and the outer wall material contact portion 2
1 are continuous in the in-plane direction.

On the front surface 21a of the outer wall material contact portion 21,
A plurality of seal fins 25 facing the out-of-plane direction are integrally provided at intervals in the width direction. This fin 25 for each seal
Is such that the distal end is closer to the side wall 22 than the proximal end.
That is, it is oblique toward the side wall 22.

A fin 26 for forming a space extending in the in-plane direction is integrally provided at an intermediate portion in the out-of-plane direction on the outer surface (the surface opposite to the concave groove 24) 22a of each of the side walls 22. An auxiliary fin 27 for forming a space facing in the in-plane direction is integrally provided at an out-of-plane direction outdoor portion of the outer surface 22a of each of the side walls 22. The auxiliary fin 27 for forming a space is bent so that a tip portion thereof faces the indoor side, and has a substantially hook shape.

The fins 2 for forming the space in each of the side walls 22
Holes 28 are formed at a portion closer to the outer wall material contacting portion 21 than at 6, that is, at a portion closer to the indoor side, at intervals in the longitudinal direction.
The hole 28 is a long hole in the longitudinal direction and is formed near the fin 26 for forming a space. The out-of-plane inner surface 28a of the hole 28 is substantially flush with the inner side surface (the surface facing the outer wall material contacting portion 21) 26a of the space fin 26 in the out-of-plane direction.

The base joint 20 is formed by extruding a resin material. The base portions of the outer wall material contacting portion 21, the side wall 22, the joint joiner 23, and the space forming fin 26 are made of hard resin.
The sealing fin 25, the tip of the space forming fin 26, and the space forming auxiliary fin 27 are made of a soft resin.

The top joint 30 has a fitting projection 31 and a fin 32 as shown in FIGS. The fitting convex piece 31 is shaped to fit into the concave groove 24, and the fin 32 is wider than the space between the joints 51, and comes into contact between the outer wall material end faces 50a. The top joint 30 is formed by extruding a resin material. The fitting projection 31 is a hard resin, and the fin 32 is a soft resin.

Next, the procedure of attaching the outer wall material and sealing the joint will be described. The jointer 23 is attached to the building frame A as shown in FIG. Back 50b of outer wall material 50
The (inside surface of the room) is abutted on the front surface 21a of the outer wall material abutting portion 21, and is attached.
6 and the auxiliary fins 27 for space formation. Thus, the interior space 52 is formed by the outer wall material contacting portion 21, the side wall 22, the space forming fin 26, and the outer wall material end face 50a, and the side wall 22, the space forming fin 26, and the space forming auxiliary fin 27 are formed. And the outer wall material end face 50a, an intermediate auxiliary space 53 is formed.

A wet sealing material 40 is filled in the concave groove 24 of the base joint 20. The wet-type sealing material 40 may be filled in a factory in advance, or may be filled at an outer wall mounting work site. Fitting convex piece 31 of top joint 30
Into the concave groove 24 to be fitted. As a result, the sealing material 40 in the concave groove 24 is pushed out of the hole 28 and pushed into the space 52, so that the indoor portion of the joint 51 is made watertight. The fin 32 is pressed against the outer wall material end face 50a, and forms an outdoor outdoor auxiliary space 54 between the outer wall material end face 50a, the side wall 22, and the space forming auxiliary fin 27.

The seal fin 25, which has been pushed and filled into the space 52 on the indoor side, leaks from the contact portion between the outer wall material contact portion 21 and the outer wall material back surface 50b.
Therefore, the space 52 is accurately filled with the sealing material 40 in a predetermined amount, and the joint is improved in watertightness. Since the sealing fins 25 are inclined toward the side wall 22, leakage of the sealing material 40 described above can be more reliably prevented.

The space 52 filled with the sealing material 40
An intermediate auxiliary space 53 and an outdoor auxiliary space 54
Are sequentially formed, the sealing material 40 filled in the space 52 does not deteriorate early due to wind, rain and sunlight, and the weather resistance of the sealing material 40 is improved.

That is, the aforementioned two auxiliary spaces 53 and 54
Has a heat insulating function, so that it is difficult for the heat of sunlight to be transmitted to the sealing material 40. Also, the rainwater that has entered from between the fin 32 of the top joint 30 and the end face 50a of the outer wall material flows down from the auxiliary space 54 on the outdoor side, and the rainwater that has not completely flowed down enters the intermediate auxiliary space 53 and flows down. Therefore, rainwater hardly penetrates to the sealing material 40.

Since the auxiliary fins 27 for forming the space are substantially hook-shaped toward the interior of the room, the sealing material 40 leaking from the space 52 and flowing down to the intermediate auxiliary space 53 is removed from the auxiliary space 5.
3 can be reliably prevented from leaking.

The size (volume) of the groove 24 is larger than the size (volume) of each hole 28 + the size (volume) of the space 52. As a result, a larger amount of the sealing material than the space 52 and each of the holes 28 is filled in the concave groove 24, so that the space 52 can be filled with a sufficient amount of the sealing material 40.

Since the hole 28 in each side wall 22 is formed in the vicinity of the fin 26 for forming a space, the sealing material 40 extruded from the hole 28 toward the outside of the room is immediately pressed against the fin 26 for forming a space. And flow toward the indoor side,
Leakage of the sealing material 40 from the contact portion between the space forming fin 26 and the outer wall material end surface 50a to the outside of the room is reduced.

That is, as shown by arrows in FIG. 3, the sealing material flows, and the sealing material flowing toward the outside of the room immediately hits the indoor side surface 26a of the fin 26 for forming a space and flows downward. As a result, the flow of the sealing material as indicated by the dotted arrow is reduced, and the space forming fin 26 and the outer wall material end surface 50 are reduced.
The leakage of the sealing material from the contact portion a to the outdoor side is reduced.

The back surface 50b of the outer wall material 50 is in contact with the seal fin 25, and the space forming auxiliary fin 27 is bent substantially in a hook shape and is in contact with the outer wall material end surface 50a.
The fin 32 of the top joint 30 is curved and the outer wall material end surface 50a
The outer wall material 50 can be displaced in the longitudinal direction with respect to the base joint 20 and the top joint 30 due to the contact with the base joint 20 and the top joint 30. Therefore, even if the outer wall material 50 expands and contracts due to the temperature, the joints 51 can be reliably watertight.

The outer wall material contact portion 21 of the base joint 20 and the joint joiner 23 may be separated in an out-of-plane direction. For example, as shown in FIG.
In FIG. 2B, two mounting walls 29 extending in the out-of-plane direction are integrally provided, and the joint joiner 23 is integrally provided on the two mounting walls 29 in the in-plane direction.

The auxiliary fin 27 for forming the space of the base joint 20 has a linear shape as shown in FIGS. 5 and 6, and is bent into a substantially hook shape facing the indoor side when the end surface of the outer wall material abuts. Is also good. Although not shown, the seal fin 25 may be straight, not oblique.

[0034]

According to the first aspect of the present invention, since the back surface of the outer wall material is in contact with the sealing fin of the outer wall material contact portion, the sealing material filled in the space is in contact with the outer wall material back surface and the outer wall material. Leakage from the contact portion of the part can be prevented by the seal fin.
Therefore, a sufficient amount of the sealing material is filled in the space, so that the watertightness of the joint is improved.

According to the second aspect of the present invention, when the fitting projection of the top joint is fitted into the concave groove of the base joint and the sealing material is pushed out of the hole to fill the space, the sealing material is pushed out of the hole. The flow of the sealing material toward the outside of the room is prevented by the fins for forming the space. Therefore, since the sealing material extruded from the hole is filled into the space as a flow toward the room side, leakage to the outside of the room from a contact portion between the space forming fin and the end face of the outer wall material is reduced.

According to the third aspect of the present invention, leakage of the sealing material filled in the space can be more reliably prevented.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a joint portion showing an embodiment of the present invention.

FIG. 2 is a perspective view of a base joint and a top joint.

FIG. 3 is a cross-sectional view of a base joint and a top joint.

FIG. 4 is a cross-sectional view showing a second embodiment of a base joint.

FIG. 5 is a transverse sectional view showing a third embodiment of a base joint.

FIG. 6 is a cross-sectional view showing a fourth embodiment of a base joint.

FIG. 7 is a sectional view of a first conventional example.

FIG. 8 is a sectional view of a second conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 20 ... Base joint 21 ... Outer wall material contact part 22 ... Side wall 23 ... Jointer joiner 24 ... Concave groove 25 ... Seal fin 26 ... Space forming fin 27 ... Space forming auxiliary fin 28 ... Hole 29 ... Mounting wall 30 ... Top Joints 31 Fitting convex pieces 32 Fins 40 Sealing materials 50 Outer wall materials 50a Outer wall material end faces 50b Outer wall material back surfaces

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2E001 DA01 DA03 FA04 FA09 FA52 FA63 GA12 GA55 GA56 GA60 GA67 GA72 HD11 HF02 MA02 MA04 MA15 PA01 2E110 AA02 AA05 AA13 AA14 AA26 AB04 AB22 BA12 CC02 CC04 CC06 CC14 CC20 CC24 DA03 DA10 DC15 DD03 DD04 DD10 EA05 GA15Z GB42Z

Claims (5)

[Claims] 1. A joint material comprising a base joint, a top joint and a wet seal material for sealing joints between end surfaces of outer wall materials, wherein the base joints have an outer wall material contact portion and a surface facing in an in-plane direction. A concave groove which is open to the outside of the room is formed by two side walls facing outward, and a space is formed on the outer surface of each side wall by the side wall, the outer wall material contact portion and the outer wall material end surface in contact with the outer wall material end surface. A fin for forming a space in the in-plane direction is provided, and a hole is formed closer to the room than the fin for forming a space, and the outer wall material abutting portion is a seal facing in an out-of-plane direction in which a back surface of the outer wall material contacts. In the shape having a fin, the top joint is fitted with a concave groove of the base joint, and a wet-type sealing material filled in the concave groove is pushed out of the hole to fill the space, and an outer wall material end face. A joint material having a shape having a fin that is in contact with the joint. 2. The jointing material according to claim 1, wherein the hole is formed near a space forming fin, and an inner side surface of the hole and an inner side surface of the space forming fin are substantially flush with each other in an out-of-plane direction. 3. The joint material according to claim 1, wherein the seal fin is inclined toward a side wall. 4. The joint of the outer wall member is provided at an in-plane end of the abutting portion of the outer wall material, and the joint member and the abutting portion of the outer wall material are continuous in the in-plane direction. Jointing material. 5. The joint material according to claim 1, wherein a joint joiner facing in an in-plane direction is provided on a back surface of the outer wall material contact portion via a mounting wall.