JPH08128120A - Joint material, and waterproofing structure of exterior wall - Google Patents

Abstract

PURPOSE: To attain a waterproofing performance to a satisfactory extent by making the whole joint area in watertight structure. CONSTITUTION: Waterproof of a joint area is effected at an internal corner to which an exterior wall material 3 is installed substantially at a right angle. An internal corner stop board 6 having a surface substantially in parallel to the end face of the exterior wall material 3 is installed. An insertion part 11 installed to both sides of a joint material 1 is placed between the end face of each exterior wall material 3 and the corner angle stop board 6 respectively, thereby making this space watertight with a corner cover part 12 between the insertion parts 11 on both sides. Thereby the area between the corner angle stop board 6 and the end face of the exterior wall material 3 is made watertight with the insertion part 11 of the joint 1, and keep the space watertight with the corner part 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 and a waterproof structure for an outer wall using the joint material. More specifically, a joint material suitable for waterproofing a joint portion at an entry corner formed by arranging outer wall materials at substantially right angles, and waterproofing of an outer wall for waterproofing the entry corner portion by using this joint material. Regarding the structure.

[0002]

2. Description of the Related Art There have been proposed various waterproof structures for waterproofing joints between outer wall materials of buildings, but JP-A-63-85708 and U.S. Pat.
As described in Japanese Patent No. 1512 and Japanese Utility Model Laid-Open No. 2-176042, the waterproof structure of the outer wall in which the joint material is inserted into the joint between the outer wall is easier to apply than the cement mortar or the like. It is widely used because it is finished quickly and does not dry after construction and does not crack.

A conventional joint material is an elastic elongated body provided with protruding tongue pieces on both sides. Then, this joint material is inserted into the joint gap between the outer wall material and the outer wall material, and the tongue pieces provided on both sides press the end faces of the outer wall material to make it watertight, and the joint portion of the outer wall. To waterproof. However, in the case of waterproofing the outer wall by such a method, it can be waterproof without any hindrance when waterproofing the joint portion of the ordinary flat outer wall, but the joint material in the corners in which the outer wall material is arranged at a substantially right angle is used. It cannot be waterproof.

The reason is that at the joints at the corners, the end surface of the outer wall material spreads at a substantially right angle as it goes deeper.
Even if the joint material is inserted from a narrow entrance, the inside of the joint is suddenly widened, the tongue does not contact the end surface of the outer wall material in a watertight manner, and the joint material enters the joint portion with a sharp fit. As a waterproof structure for the inner corner to solve this problem, Japanese Patent Laid-Open No. 64-58
As described in Japanese Patent No. 737, a structure is known in which a backup material is loaded inside the joint portion to prevent the joint material from slipping into the joint portion.

[0005]

[Problems to be Solved by the Invention] However, in this way,
It is extremely difficult to load the backup material into the deep part of the narrow joint. Further, even if the joint material is provided so as to reach the backup material, it is difficult to press the joint material against the end surface of the outer wall material which is suddenly widened. The space is not completely watertight. Therefore, in this publication, the joint cover is pushed into the joint material to press the joint material against the end surface of the outer wall material, but it is difficult to be completely watertight. Therefore, an object of the present invention is to provide a joint material capable of completely waterproofing an entering corner portion in which the outer wall material and the outer wall material are arranged substantially at right angles, and an outer wall of the entering corner portion using the joint material. It provides a waterproof structure.

[0006]

The present invention has been made to achieve the above object, and the joint material of the present invention is provided between the insertion portions provided on both sides and between the insertion portions. The joint member is an elastic elongated body composed of a connecting portion, and the tongue pieces protruding on both sides are provided on the inserting portions on both sides.

Further, the outer wall waterproof structure of the present invention is an outer wall waterproof structure for waterproofing joints at the corners in which outer wall members are arranged substantially at right angles. An entry corner stop plate having a surface substantially parallel to the end surface of the joint material is provided, and the insertion portions provided on both sides of the joint material are respectively inserted between the end surface of the outer wall material on both sides and the entrance corner stop plate. The tongue piece of this insertion portion is pressed against the end surface of the outer wall material to make this portion watertight.

In the present invention, the elastic long joint material is made of an elastic material. The elastic material may be any material as long as it has elasticity, but rubber such as natural rubber and synthetic rubber, and soft synthetic resin such as soft vinyl chloride resin are preferable. In particular, butyl rubber having excellent weather resistance and synthetic rubber having good weather resistance such as ethylene-propylene-diene terpolymer (EPDM) are preferable. In addition, the shape of the tongues provided on both sides of the joint material is such that it is easy to insert into the joint portion with both side edges of this joint material as the head, and moreover, it is difficult to pull out, and the tongue piece is oriented toward the center as it goes to the tip. It is better to tilt it.

[0009]

In the waterproof structure for the outer wall of the present invention, since the entrance corner stop plate having the surfaces substantially parallel to the end surfaces of the outer wall material located on both sides of the joint portion is provided, the entrance corner stop plate and the outer wall material are provided. There is a gap between the end face of the inlet and the back of the inlet, the width of which is almost the same.
Therefore, when the insert portion of the joint material is inserted into this gap, the tongue pieces protruding on both sides of the insert portion press the end surface of the outer wall material, and this portion becomes watertight. In this way, when the insertion parts on both sides of the joint material are inserted between the end surfaces of the outer wall located on both sides of the joint portion and the entry corner stop plate, the joint portions of the joint material are inserted between the end surfaces of the outer wall on both sides. It will be handed over and will be watertight during this time. As a result, the entire joint of the outer walls on both sides becomes watertight.

The joint material of the present invention is an elastic elongated body composed of insertion portions provided on both sides and a bridging portion provided between the insertion portions, and the tongue protruding on both sides of the insertion portions on both sides. Since the piece is provided, the insertion portions on both sides can be inserted into the gap between the end face of the outer wall material and the entry corner stop plate located on both sides of the joint as described above. Further, since the tip of the insertion portion is chamfered in the shape of an arrow to be rounded, it is easy to insert it into the above-mentioned gap.

[0011]

Next, embodiments of the present invention will be described. 1 to 2 show an embodiment of the present invention, (a) of FIG. 1 is a perspective view showing a part of a joint material, (b) is a front view, and FIG.
It is explanatory drawing which shows the waterproof structure of the outer wall which used the joint material.

1 and 2, reference numeral 2 denotes an outer wall, which comprises an outer wall material 3, a frame 4 attached to the back surface of the outer wall material 3, and a heat insulating material 41 made of glass wool. This outer wall 2 is attached to the outside of the building. Therefore, as shown in FIG. 2, the outer wall 2 is arranged at a substantially right angle in the inside corner, and the joint portion 21 which is a gap between the outer wall material 3 and the outer wall material 3 spreads at a substantially right angle as it goes deeper. It is getting wider.

1 is a joint material made of synthetic rubber (EPDM). As shown in FIG. 1, the joint material 1 is a long body having a mountain-shaped cross section with a flat top, and the mountain-shaped inclined surfaces on both sides. It is composed of an insertion part 11 composed of and a transfer part 12 at the top. Further, protruding tongue pieces 13 are provided on both surfaces of the insertion portion 11. The length of the inclined surfaces on both sides is substantially equal to the thickness of the outer wall member 3. Also, tongue piece 1
The shape of 3 inclines toward the center as it goes to the tip of the tongue 13.

Reference numeral 5 is a vertical member which is a structural material of a building, and an entrance corner stop plate 6 is attached to the vertical member 5. As shown in FIG. 2, the entry corner stop plate 6 is composed of a base portion 61 attached to the vertical member 5 and a rising portion 62 that stands up at a substantially right angle to the base portion 61. Therefore, the base member 61 is attached to the vertical member 5
, The rising portion 62 becomes substantially parallel to the end surface of the outer wall member 3. A heat insulating material 7 made of glass wool is attached between the frames 4. Reference numeral 8 is a heat insulating material made of glass wool which is attached between the inner corner stop plates 6.

Next, the method of constructing the waterproof structure for the outer wall and the function of the joint material will be described. The entrance corner stop plate 6 is attached to the vertical member 5. Next, the outer wall 2 is attached. Then, at the entry corner, the outer wall 2 is attached in a state of being disposed at a substantially right angle, and the end surface of the outer wall material 3 and the rising portion 62 of the entry corner stop plate 6 are substantially parallel to each other, and the end surface of the outer wall material 3 is And a surface of the rising portion 62 of the inner corner stop plate 6, there is a gap having substantially the same width between the entrance and the back.

Next, the insertion portion 11 of the joint material 1 is inserted into the gap between the end face of the outer wall material 3 and the rising portion 62. At this time, the tip of the insertion portion 11 is chamfered in the shape of an arrow to be rounded, and the tongue pieces 1 provided on both sides of the insertion portion 11 are
Since 3 is inclined toward the center as it goes to the tip, it is easy to insert it between the end surface of the outer wall member 3 and the entry corner stop plate 6, and it is difficult to remove it after inserting it. In this way, the insertion portions 11 and 11 provided on both sides of the joint material 1 are connected to the joint portion 2 respectively.
It is inserted between the outer wall members 3 and 3 located on both sides of 1 and the entry corner stop plates 6 and 6.

Then, the tongue pieces 13 provided on both sides of the insertion portion 11 press the end surface of the outer wall material 3 and the entry corner stop plate 6 to make this portion watertight, and the joint portion 12 of the joint material 1 is made. Is placed between the outer walls 2 and 2 and is watertight during this time. Therefore, the entire joint is watertight. In this way, by simply inserting the insertion portion 11 between the end surface of the outer wall material 3 and the entry corner stopper member 6, this portion can be completely watertight, so that the construction is simple.

[0018]

In the waterproof structure for the outer wall of the present invention, the joint corner stop plate having a surface substantially parallel to the end surface of the outer wall material is provided in the joint portion, and the end surface of the outer wall material and the entrance corner stop plate are combined. Since the joint material insertion portion is inserted between these portions, this portion becomes watertight. Moreover, when the insertion portions provided on both sides of the joint material are respectively inserted between the joints and the end faces of the outer wall on both sides of the joint material, the connecting portion between them is passed over and the portion is also watertight. as a result,
The joints in the corners are watertight and the joints are neat and beautiful.

Further, since the joint material of the present invention is an elastic elongated body composed of the insertion portions provided on both sides and the bridging portions provided between the insertion portions, the insertion portions on both sides are respectively formed. It can be inserted between the end face of the outer wall and the entry corner stop plate. Moreover, since the tongue pieces are provided on both sides of the insertion part, the tongue pieces can press the end surface of the outer wall member to be watertight. As described above, according to the present invention, it is possible to completely waterproof the joint portion of the entering corner, which has been difficult in the past, and the construction is simple. Therefore, the present invention is a valuable invention.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention and is a perspective view showing a part of a joint material.

FIG. 2 is an explanatory view showing a waterproof structure of an outer wall using the joint material of FIG.

[Explanation of symbols]

 1 joint material 11 insertion part 12 bridging part 13 tongue piece 2 outer wall 3 outer wall material 6 entry corner stop plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshihiro Marume 2-2-8, Misono-cho, Nishi-ku, Hiroshima City, Hiroshima Prefecture Nishikawa Rubber Industry Co., Ltd.

Claims (2)

[Claims] 1. A joint member of an elastic elongated body comprising insert portions provided on both sides and a connecting portion provided between the insert portions, wherein the insert portions on both sides respectively project on both sides. A joint material characterized by being provided with a tongue piece. 2. A waterproof structure of an outer wall for waterproofing a joint portion of an entering corner in which the outer wall material is disposed substantially at a right angle, wherein the joint material is a surface substantially parallel to the end faces of the outer wall material located on both sides. The entrance corner stop plates having the above are provided, and the insertion portions provided on both sides of the joint material according to claim 1 are respectively inserted between the end surfaces of the outer wall members on both sides and the entrance corner stop plates. Waterproof structure of the outer wall, characterized in that the tongue piece presses the end surface of the outer wall material and this part is made watertight