JP2001173191A - Joint material and its execution method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joint material and its execution method, by which the deterioration of the sealing properties of the joint material due to the thermal expansion of air in a hollow hole by solar rays is inhibited while a site not subjected to the effect of solar rays and wind and rain or the like can be filled simply with a sealing material and excellent sealing properties can be ensured. SOLUTION: A side plate 8 is connected continuously to a joint joiner 7 in a joint base material 2, and sealing section pieces 10, abutting sections 12 and holes 14 are formed to the external side faces of the side plate 8. A space S1 surrounded by the abutting sections 12, side walls W in a joint groove and the sealing section pieces 10 is filled with the sealing material 4, and the sealing material 4 has quantity sufficient for sealing the space. A core material 6 is formed by continuously connecting a core section 26 and the collar plate of a head section 28. Air passages (b) communicated with the hollow holes (a) are formed in spaces surrounded by the external side faces of the side plates 8, the sealing section pieces 10 and the abutting sections 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint material to be installed in a joint groove where it is necessary to secure watertightness between adjacent wall cladding materials in a building and a method of constructing the joint material. The present invention relates to a joint material for applying to a joint groove between adjacent hollow outer wall materials when a hollow outer wall material having a hollow hole penetrating in a length direction is applied as the material.

[0002]

2. Description of the Related Art In recent years, a hollow outer wall material having a plurality of hollow holes penetrating in the length direction at appropriate intervals has been widely used as a wall exterior material because of its light weight and excellent heat insulation and fire resistance. ing. Conventionally, when sealing the joint groove between the adjacent hollow outer wall materials, as shown in FIG. 3, a hat-shaped joint joiner 52 is disposed between the adjacent hollow outer wall materials A and A, and there is provided therein. The joint groove was sealed by filling the sealing material 54, but in this case, since the hollow hole a of the hollow outer wall material A is closed by the sealing material 54, the flow of air in the hollow hole a is restricted. In addition to hindering heat insulation, the hollow hole a
There is a problem that the sealing material 54 is peeled off due to the expansion of the air inside by being heated, and the sealing performance is significantly reduced.

[0003] Such a problem, as shown in FIG.
The problem can be solved by forming the side plates 68, 68 of the joint joiner 62 so as to be narrower than the width of the joint groove and so that the bottom surface between the side plates 68 is higher than the hollow hole a of the hollow outer wall material A. However, in this case, since the layer of the sealing material 64 filling the joint groove becomes extremely thin, a new property that the sealing property tends to deteriorate due to deterioration with time due to exposure to sunlight, wind and rain, etc. Problems have been pointed out.

[0004]

The technical problem of the present invention is to secure the flow of air in the hollow hole of the hollow outer wall material, so that the air in the hollow hole of the hollow outer wall material is heated by sunlight. While suppressing the deterioration of the sealing property of the joint material due to expansion, a sufficient amount of sealing material to seal the joint groove can be easily filled into a portion not affected by sunlight, wind and rain, It is another object of the present invention to provide a joint material which can ensure good sealing performance and a method for constructing the joint material.

[0005]

According to the present invention, there is provided a joint material which is provided in a joint groove between hollow outer wall materials provided with a plurality of hollow holes penetrating in the longitudinal direction at appropriate intervals. There is a joint base material, a sealing material, and a core material, and the joint base material made of a synthetic resin is a joint joiner disposed on a lower ground surface of a building exterior. A side sealing plate is formed by integrally connecting the side plates, and the outer end of the side plate is pressed against the outer surface side of the hollow hole in the end surface of the hollow outer wall material, and a soft sealing piece for sealing the portion is provided. An abutting portion for abutting against the lower ground side of the hollow hole at the end surface of the outer wall material to position the hollow outer wall material and for preventing the inflow of the sealing material into the hollow hole in the hollow outer wall material; A plurality of holes perforated on the ground side rather than the contact portion, The sealing material to be filled between the both side plates is pressure-filled from a hole of the side plate into a space surrounded by the contact portion, the inner side wall of the joint groove, and the partition wall on the joint base material, and seals the space. The core material to be inserted between the both side plates in the joint base material presses out the sealing material filled therein by the indentation between the side plates in the joint base material from the holes in the side plates. A core portion and a flange plate of a soft head that presses against and seals the joint groove mouth portion are formed by connecting them in a substantially T-shaped cross section, and the outer surface of the side plate in the joint base material, An air passage communicating with the hollow hole of the hollow outer wall material is formed in a space surrounded by the sealing portion and the contact portion formed on the outer surface of the side plate.

[0006] In the joint material, at least one or more soft partition walls on the joint base material are pressed against the back surface of the hollow outer wall material by pressing the partition wall on the support wall for supporting the back surface of the hollow outer wall material. Can be formed by providing the sealing pieces of the core material. Also, the core material is engaged with the inside of both side plates of the joint base material and the core portion of the core material when the core material is pushed into the joint base material. It is preferable to provide an engaging portion for holding the material between both side plates of the joint base in a retaining state.

The construction method of the present invention using the above joint material is as follows:
On the lower ground surface of the building outer layer, between adjacent hollow outer wall materials, a sealing portion piece of the side plate of the joint base material is pressed against the outer surface side of the hollow hole of the hollow outer wall material to seal the portion, Positioning the hollow outer wall material by bringing the contact portion of the side plate into contact with the base surface side of the hollow hole of the hollow outer wall material; pushing the core of the core material between the side plates of the joint base material filled with the sealing material; And pressing the sealing material through a hole in the side plate into a space surrounded by the contact portion and the inner wall of the joint groove, and simultaneously covering the joint groove opening with a flange plate of the core material head. It is characterized by the following.

[0008] The operation of the joint material according to the present invention and the method of constructing the joint material will be described more specifically. When the joint material of the present invention is applied to a joint groove between adjacent hollow outer wall materials in a building, first, the building The sealing portion of the side plate of the joint base material disposed on the lower ground of the outer layer is pressed against the outer surface side of the hollow hole of the adjacent hollow outer wall material to seal the portion, and at the same time, the contact portion of the side plate is contacted. Is brought into contact with the ground surface side of the hollow outer wall material with respect to the hollow hole to fix the hollow outer wall material.
Next, the core portion of the core material is pushed between the both side plates of the joint base material, and the sealing material filled therein is surrounded by the contact portion and the inner side wall of the joint groove through the hole of the side plate. At the same time as extruding into the space, the joint groove opening is covered with the collar plate of the core material head.

At this time, the flange plate at the head of the core material primarily seals the joint groove opening, and the sealing piece on the side plate of the joint base material is pressed against the outer surface of the hollow hole at the end face of the hollow outer wall material. Secondary seal. Then, the sealing material is pressed out from a large number of holes provided in the joint base material, but since the abutting portion abuts on the lower ground side of the hollow hole in the hollow outer wall material, the sealing material is in contact with the abutting portion. The sealing material is pressed out into the space surrounded by the inner side wall of the joint groove on the ground surface side, so that the sealing material can be prevented from flowing into the hollow hole in the hollow outer wall material. Thus, in the space surrounded by the outer surface of the side plate of the joint base material and the sealing piece and the abutting portion formed on the outer surface of the side plate, ventilation communicating with the hollow hole of the hollow outer wall material is provided. Since the passage is formed and the flow of the air in the hollow hole is ensured, the sealing property of the joint material is deteriorated due to the air in the hollow hole of the hollow outer wall material being expanded by being heated by sunlight. Can be deterred. Moreover, since the sealing material is not directly exposed to the rain and sunlight, the deterioration of the sealing with time can be suppressed, and an effective sealing effect with the joint groove inner wall can be secured. .

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIGS. 1 and 2 show an embodiment of a joint material according to the present invention. In FIG. 1, A is a hollow outer wall material provided with a plurality of hollow holes a penetrating in the longitudinal direction at appropriate intervals, and 1 is a hollow outer wall material A constituting a wall surface exterior material (siding or other exterior panel) of a building. Joint material for sealing joint grooves such as joints of the joints, and the joint material 1 is mainly intended for joint grooves that need to ensure watertightness between adjacent hollow outer wall materials A in a building. In general, a joint base material 2, a sealing material 4, and a core material 6 are provided.

As can be seen from FIG. 1, the joint base material 2 made of a synthetic resin constitutes a lower ground of the exterior, which is attached to a building body via a waterproof sheet (not shown) used as necessary. The left and right flexible side plates 8, 8 are integrally connected to the surface of the joint joiner 7 on the body edge B to be positioned between the adjacent hollow outer wall materials A. Which is fixed to the rim B with nails (not shown). In addition, this joint base material 2
Is not limited to the nail described above, and an appropriate fixing means such as an adhesive can be applied. On the outer surfaces of both side plates 8 of the joint base material 2, a soft seal piece 10 whose tip presses against the outer surface of the hollow hole a at the end surface of the hollow outer wall material A to seal the portion,
An abutting portion 12 whose tip abuts against the lower ground side of the hollow hole a to position the hollow outer wall material A, and that prevents the sealing material 4 from flowing into the hollow hole a;
And a larger number of holes 14 formed on the base surface side. After the joint material 1 is applied, as shown in FIG. 1, the outer surface of the side plate 8 and the sealing piece 1
An air passage b communicating with the hollow hole a of the hollow outer wall material A is formed in a space surrounded by the abutting portion 12 and the abutting portion 12. A support wall 16 for supporting the back surface of the hollow outer wall material A is provided on the joint base 2 below the hole 14 of the side plate 8 in parallel with the rim B of the base. Further, on the support wall 16, two soft sealing pieces 18a and 18b are provided so as to press against the back surface of the hollow outer wall material A to seal the space between the back surface and the hollow outer wall material A. These seal pieces 18a and 18b together with the contact portion 12 define a space S1 in which the sealing material 4 is pressed and filled.
It functions as a partition wall for suppressing the outflow of the sealing material 4 from the wall.

Between the two side plates 8, 8 of the joint base material 4, as the core material 6 is inserted between them, the core material 6 is pressed out from a hole 14 formed in the side plate 8 to be pressed. The space S surrounded by the contact portion 12, the inner wall W of the joint groove, and the sealing piece 18 b on the support wall 16 of the joint base 2.
1 is filled with a sealing material 4 having fluidity and viscosity. The sealing material 7 is provided in the space S
1 has a sufficient amount to be extruded and filled into the seal 1 and, in a state before the joint material 1 is applied (not shown), a lid fitted to a mouth portion of both side plates 8 of the joint base material 2. Body 20
Has prevented the outflow. The cover 20 includes an engaging hook 22 formed at an opening between the side plates 8 and the cover 2.
0 is engaged with the engagement grooves 20a provided on both side surfaces of the sealing member 4 to prevent the sealing material 4 from flowing out. When the core material 6 is pushed between the side plates 8, the core material 6 is formed as a part of the core portion 26 between the side plates 8. It can be pushed into. In addition, the sealing material 4 from the hole 14 may be provided on the outer surface of the side plate 8 at the portion of the hole 14 as necessary.
A sealing member (release paper) for suppressing the outflow of water can be stuck.

As can be seen from FIG. 1, the core material 6 inserted between the two side plates 8 of the joint base material 2 is
Is pressed into the space between the side plates 8 so as to be integrated with the lid 20 inserted between the side plates 8 to press out the sealing material 4 filled therein from the holes 14 of the side plates 8. The core 26 and the outer layer made of a thermoplastic soft synthetic resin are integrally formed to cover the joint groove mouth, and the soft head 28 is pressed against the joint groove mouth to seal therewith. By forming a flange plate integrally and continuously, it is formed in a substantially T-shaped cross section, and a core rod 30 made of fiberglass is inserted into the center of the core part 26. When the collar plate of the head 28 of the core member 6 is pushed into the joint groove, the soft tongue-shaped wing portion 28a is pressed against the joint groove inner wall W in a state where the tip is outwardly bent. This seals (primary seal) with the inner wall W, so that the tongue-like wing portion 28a is made of a thermoplastic relatively soft synthetic resin. Since the flange plate of the head 28 is integrated with the upper flat surface of the core portion 26 except for the wing portions 28a, when it is pressed into the joint groove, the portion integrated with the core portion 26 has a flat surface. In this state, only the two wings 28a are bent outward and strongly pressed against the joint groove inner wall W, so that the appearance is very clean. When the core portion 26 is pushed into the space between the side plates 8 while pressing the cover body 20, the tip of the cover body 20 is sealed with the sealing material 4 between the both side plates 8.
Is formed to a length that does not reach the bottom of the filling area.

Then, both side plates 8 of the joint base material 2 are formed.
At the upper end of the inner surface of the base member, engaging hooks 22 are provided to face each other, and the engaging hooks 22 are connected to the base end of the core portion 26 of the core member 6 which is a continuous portion between the core portion 26 and the head portion 28. By forming the mating groove 23, when the core 6 is pushed into the joint base 2, the engaging hooks 22 and the engaging grooves 23 mutually engage, so that the core 6 is formed. An engaging portion 24 is formed between the side plates 8 of the joint base 2 to hold the joint in a retaining state.

When the joint material 1 according to the embodiment of the present invention having the above configuration is installed in the joint groove between the adjacent hollow outer wall materials A in the building, first, the seal pieces 18a, 18a, 18b, the back surface of the hollow outer wall material A is pressed against the hollow outer wall material A to support the hollow outer wall material A. Next, the sealing piece 10 on the side plate 8 of the joint base material 2 disposed on the lower ground of the building outer layer is placed adjacent to At the same time, the contact portion 12 of the side plate 8 is brought into contact with the base surface side of the hollow outer wall material A with respect to the hollow surface a of the hollow outer wall material A. To fix the hollow outer wall material A. Then
The core 26 of the core material 6 is pushed in between the two side plates 8 of the joint base material 2 while pressing the lid 20 fitted to the opening between the two side plates 8, and the sealing material filled therein is pressed. 4
Through the hole 14 of the side plate 8 and the contact portion 12,
At the same time as the core material 6 is pressed out into the space S1 surrounded by the inner wall W of the joint groove on the ground surface side from the contact portion 12 and the sealing piece 18b on the support wall 16 of the joint base material 2,
The joint groove opening is covered with the collar plate of the head 28 of FIG.

At this time, the flange plate of the head 28 of the core member 6 is pressed against the joint groove inner side wall W with its tip bent outward to primarily seal the joint groove mouth portion, and the joint base material 2 is sealed. The sealing piece 10 protruding from the outer surface of the side plate 8 is pressed against the outer surface of the hollow hole a at the end surface of the hollow outer wall material A to perform secondary sealing. Then, the sealing material 4 is pressed out from the large number of holes 14 provided in the joint base material 2, and the contact portion 12 contacts the lower ground side of the hollow hole a in the hollow outer wall material A, and the support wall 16 is pressed. The sealing pieces 18a, 1 projecting upward
8b is pressed against the back surface of the hollow outer wall material A, so that the sealing material 4 is in contact with the contact portion 12, the inner side wall W of the joint groove on the ground surface side from the contact portion 12, and the side plate 8 side on the support wall 16. Is pressed out into the space S1 surrounded by the sealing piece 18b,
It is possible to prevent the sealing material 4 from flowing into the hollow hole a in the hollow outer wall material A and flowing out from the back surface side of the hollow outer wall material A. Moreover, the support wall 16
Since the two sealing portions 18a and 18b are provided on the upper portion, even if the sealing material 4 flows out from between the sealing portion 18b and the back surface of the hollow outer wall material A, the sealing material 4a is provided by the sealing portion 18a. Can be prevented from flowing out.

Thus, the outer surface of the side plate 8 in the joint base material 2 and the sealing piece 10 formed on the outer surface of the side plate 8
In the space surrounded by the abutment portion 12 and the air passage b communicating with the hollow hole a of the hollow outer wall material A, a flow of air in the hollow hole a in the hollow outer wall material A is secured. Therefore, it is possible to suppress a decrease in the sealing performance of the joint material 1 due to the expansion of the air in the hollow holes a of the hollow outer wall material A by the sunlight. In addition, since the sealing material 4 is not directly exposed to the rain and sunlight, the deterioration of the sealing with time is suppressed, and the effective sealing effect with the joint groove inner wall W is ensured. Can be.

In the above-described embodiment, the case where the two sealing pieces 18a and 18b are protruded from the supporting wall 16 is described. However, the present invention is not limited thereto. Can be provided. In addition, the lid 20 fitted to the mouth of the both side plates 8 in the joint base material 2 is not necessarily provided, and in this case, the core 26 of the core material 6 is inserted into the space between the two side plates 8 when pushed. Needless to say, the tip is formed so as not to reach the bottom of the filling area of the sealing material 4 between the both side plates 8.

[0019]

As described in detail above, according to the joint material of the present invention and the method for constructing the joint material, the flow of air in the hollow hole of the hollow outer wall material is ensured. In addition to suppressing the deterioration of the sealability of the joint material due to the air being heated by the sun and expanding, the sealant must be provided with a sufficient amount of sealing material to seal the joint groove, due to the effects of sunlight, wind and rain. It is possible to provide a joint material which can be easily filled in a portion not to be received, and which can ensure good sealing performance, and a method for constructing the joint material.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state after construction of a joint material of the present invention.

FIG. 2 is a partially cutaway side sectional view of FIG.

FIG. 3 is a cross-sectional view showing a state after construction of a conventional example.

FIG. 4 is a cross-sectional view showing a state after construction of another conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Joint material 2 Joint material 4 Sealing material 6 Core material 7 Joint material 8 Side plate 10 Seal piece 12 Contact part 14 Hole 16 Support wall 18a, 18b Seal piece 24 Engagement part 26 Core part 28 Head A hollow outer wall Material B Body edge S1 Space W Inner wall a Hollow hole b Air passage

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2E001 DA01 FA04 FA52 FA53 GA64 HF02 MA02 MA04 MA06 2E110 AA09 AA14 AA28 AB04 AB22 DD02 DD03 DD10 DD14

Claims (4)

[Claims] 1. A joint material provided in a joint groove between hollow outer wall materials provided with a plurality of hollow holes penetrating in a longitudinal direction at appropriate intervals, comprising: a joint material; a sealing material; and a core material. The joint base material made of synthetic resin is configured such that left and right side plates having flexibility are integrally connected to a joint joiner disposed on a lower ground surface of a building exterior, and the outside of the side plate is provided. On the side surface, the tip is in contact with the outer surface side of the hollow hole at the end surface of the hollow outer wall material and a soft sealing piece that seals the portion, and the tip is in contact with the lower ground side of the hollow hole at the end surface of the hollow outer wall material. Along with positioning the hollow outer wall material, a contact portion for suppressing the inflow of the sealing material into the hollow hole in the hollow outer wall material, and a number of holes formed on the base surface side than the contact portions on the both side plates. The sealing material to be filled between the both side plates of the joint base material, the contact portion and The space surrounded by the inner wall of the trench and the partition wall on the joint base material is provided with a sufficient amount to be extruded and filled from the hole of the side plate and sealed there, between the both side plates in the joint base material. The core material to be intruded is a core portion that presses out the sealing material filled therein by the indentation between the side plates in the joint base material from a hole in the side plate,
A flange plate of a soft head that presses against and seals the joint groove opening portion is formed by continuously connecting in a substantially T-shaped cross section, and the outer surface of the side plate in the joint base material and the outer surface of the side plate. A joint material characterized in that an air passage communicating with the hollow hole of the hollow outer wall material is formed in a space surrounded by the seal portion piece and the contact portion formed on the side surface. 2. The joint material according to claim 1, wherein a partition wall on the joint base material is pressed against the back surface on a support wall supporting the back surface of the hollow outer wall material to seal the space between the joint wall and the back surface. A joint material formed by providing at least one or more soft seal pieces to be joined. 3. The joint material according to claim 1, wherein the joint material is engaged with the inside of both side plates of the joint base material and the core portion of the core material when the core material is pushed into the joint base material. An joint material provided with an engaging portion for holding the core material between both side plates of the joint base material in a retaining state. 4. A method for applying a joint material according to any one of claims 1 to 3, wherein a side plate of the joint material is provided between adjacent hollow outer wall materials on a lower ground surface of a building outer layer. At the same time, the sealing portion piece is pressed against the outer surface side of the hollow hole of the hollow outer wall material to seal the portion, and at the same time, the contact portion of the side plate is brought into contact with the ground surface side than the hollow hole of the hollow outer wall material. Positioning the hollow outer wall material; pushing the core of the core material between the side plates of the joint base material filled with the sealing material, and passing the sealing material through the holes of the side plates to form the contact portion and the inner wall of the joint groove Covering the joint groove opening with the flange plate of the core material head at the same time as extruding into the space surrounded by the joint material.