JP3424909B2 - Joint filler - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint filler for filling a joint groove formed in a continuous portion of a wall panel of a building or the like and using it as a seal backup material or a seal material.

[0002]

2. Description of the Related Art When a wall of a building is constructed by wall panels such as outer layer plates, it is necessary to seal joint grooves formed between consecutive wall panels. The sealing of the joint groove can be performed by filling a sealing material, but the seal needs to have a bottom portion in the joint groove, and when there is no bottom portion, it is necessary to dispose a backup material in the joint groove. . If the joint groove has a fixed bottom, the sealing material adheres to the three sides of the joint groove: the side surface and the bottom surface. is there. Therefore, not only when the joint groove does not have a bottom surface but also when the joint groove has the bottom surface, it is desired to provide a backup material or a sealing material adhered only to the opposite side surfaces in the joint groove.

[0003]

SUMMARY OF THE INVENTION The problem to be solved by the present invention is to bond not only a joint groove having a bottom portion but also a joint groove having no bottom portion only to the opposing side surfaces in the joint groove to form a wall. It is an object of the present invention to provide a joint filler that can be surely mounted regardless of the distortion of the panel and can be used as a backup material for holding the sealing material or a sealing material.

[0004]

In order to solve the above-mentioned problems, the present invention provides a joint filler which is formed in a long shape so as to be fitted into a joint groove between wall panels connected in the longitudinal direction or the lateral direction. Te, comprising the joint filler was formed by foamed synthetic resin of closed cell, and the bonding piece for adhering the eye graben inner surface, and a bent piece foldable against adhesive pieces, the Cross-sectional shape of adhesive piece and bent piece
The shape is an isosceles right triangle of the same shape, and
The slopes formed by the hypotenuses are paired at an angle of 90 degrees.
Are arranged facing each other, and the
Forming Ru and an adhesive applied to the adhesive surface configured Te, it is characterized in.

Then , the additional adhesive portion integrally formed with the adhesive portion is provided on the orthogonal surface of the adhesive portion opposite to the bent portion, so that the adhesive area of the joint filler is small in size. Is effective for.

[0006]

[Advantages of the Invention and Effect of the Invention] Adhesive pieces of the joint filler are adhered to the inner side surfaces of joint grooves of the wall panels connected in series by the adhesive applied to the joint surface, and the bent portions of the joint filler are bonded. in particular bent towards the pieces inside each other
Then, attach a backup material to the joint groove between the wall panels,
Alternatively, the joint groove can be sealed.

[0007] In this case, the joint filling material formed of a foamed synthetic resin closed cell, so attached to the side of the eye Graben by an adhesive, or without the bottom of the eye Graben, only on opposite side surfaces in the eye Graben It can be securely attached by adhesion and can be used as a sealing material for holding a sealing material or as a sealing material by forming them with a material having a sealing property. Also,
Since the joint filler formed of the closed-cell foam synthetic resin has flexibility, it is possible to cope with a slight variation in the width of the joint groove.

[0008] In particular, the cross-sectional shape of the adhesive piece and the bent piece with a right-angled isosceles triangle of the same shape, by a ramp formed by these oblique sides facing disposed at an angle of 90 degrees, the bent piece When the sheet is bent, these sealing surfaces come into close contact with each other by surface contact, which facilitates mounting of the joint filler in the joint groove. Further, when the additional adhesive portion piece is provided to the adhesive portion piece, the adhesive surface can be widened even when the width of the joint groove is narrow, so that the adhesive force to the wall panel and the sealing function of the joint groove are deteriorated. To be prevented.

[0009]

1 and 2 show a first embodiment of the present invention and a mounting mode thereof. The joint filler 1 formed in a long shape is composed of right-angled isosceles triangles having the same sectional shape. The bonding piece 2 and the bending piece 3 are provided, and the slopes 2a and 3a formed by the hypotenuses of the isosceles right triangles of these pieces are arranged so as to face each other at an angle of 90 degrees. The parts 4 are integrally connected. And
The adhesive surface 2b is formed by one of the orthogonal surfaces of the adhesive portion piece 2 that is continuous with the bent portion piece 3, and the inner end surface 2c is formed by the other surface that is orthogonal to the adhesive surface portion 2b. The surface 3b is configured, and the other surface orthogonal to the surface 3b configures the bonding surface 3c.

As shown in FIG. 2, the widths of the inner end surface 2c and the bent surface 3b of these pieces 2 and 3 are equal to the width of the joint groove 12 between the wall panels 10 and 11 in which the joint filler 1 is filled. Equal to or slightly greater than one half. Therefore, the joint filler 1 is prepared in a plurality of types according to the width of the joint groove 12.

The adhesive part piece 2 and the bent part piece 3 are 14 times to 30 times in order to have functions such as waterproofing and sound deadening.
The two pieces 2 and 3 may be formed separately from each other, though they are formed of double-foamed closed-cell foamed polyethylene resin and are connected to each other at the connecting portion 4 so that they can be bent. The adhesive surface 2b and the bending surface 3b in the illustrated example are provided with a waterproof adhesive 6 and a release paper 7 that covers the adhesive 6, and the release paper 7 is provided at a location facing the connecting portion 4. A longitudinal cut (not shown) is provided to facilitate removal of only the release paper on the adhesive surface 2b side. However, it is not necessary to originally provide the adhesive 6 on the bent surface 3b.

In the example shown in FIG. 2, the wall panel 10,
A refractory material 14 that suppresses mutual heat conduction is attached between 11 and the joint filler 1 is attached to the end surface side of the refractory material 14 in the drawing. However, the joint filler 1 is not attached to the end surface of the refractory material 14 with an adhesive or the like, and is free from the refractory material 14.
Further, if necessary, before attaching the joint filler 1 to the inner side surfaces 10a and 11a of the joint groove 12 of the wall panel, one of the opposing slopes 2a and 3a is provided with a double-sided adhesive tape (not shown).
Etc. can be joined together and used to bond the opposing slopes 2a and 3a.

The joint filler 1 is prepared by removing the release paper 7 on the side of the adhesive surface 2b and pressing the adhesive surface 2b against the inner surfaces 10a and 11a of the wall panels 10 and 11 forming the joint groove 12, respectively. The joint fillers 1 and 1 are attached to the corresponding inner side surfaces 10a and 11a of the joint groove 12, respectively. In addition, the example shown in FIG.
The inner end faces 2c, 2c of the adhesive pieces 2, 2 are respectively brought into contact with the end faces of the refractory material 14 in order to make the mounting positions of the joint filler 1, 1 on the 1a constant. It is not necessary to bring the inner end surfaces 2c, 2c into contact with the end surface of the refractory material 14 when adhering.

Next, when the bending pieces 3, 3 are bent inward at the connecting portion 4 with fingers or an appropriate tool, the slopes 2a and 3a are closely adhered to each other, and the bending surfaces 3b, 3b are bonded together. By making the width half the width of the joint groove 12 or slightly larger than that, the joint surfaces 3c of the pair of joint fillers 1 and 1 are in close contact with each other. Therefore, the pair of joint fillers 1, 1 can be attached to the joint groove in a joined state and can be used as a backup material for holding the sealing material.
When 1 has a sealing function, the joint groove 12 is sealed. In this case, since the joint filler 1 is made of polyethylene foam and the bent portion 3 is connected to the adhesive portion 2 by the connecting portion 4 in a state close to line contact, the bent portion 3 Even if the width is slightly larger than one half of the width of the joint groove 12 between the wall panels, it can be easily folded.

The width of the joint surfaces 3c, 3c of the pair of joint fillers 1, 1 which are in close contact with each other by bending the bending part 3 is
If the joint surfaces 3c, 3c are in contact with each other due to the bending of the bent part pieces 3, 3 which is larger than one half of the width of the joint groove 12, the bent part pieces 3, 3 hardly rise up due to elasticity. Like slopes 2a, 3
Providing an appropriate joining means such as a double-sided adhesive tape on either one of a) can surely prevent the bent parts 3, 3 from rising.

Since the joint fillers 1 and 1 are individually adhered to the inner side surfaces 10a and 11a of the wall panel and are made of a flexible material, they can move with each other. , Joint groove 1 due to external force such as earthquake
Even if the positions of the inner side surfaces 10a and 11a of No. 2 slightly change, the sealing function does not deteriorate. Appropriate sealing material (not shown) can be filled and sealed on the outside of the joint fillers 1 and 1 attached to the wall panels 10 and 11.
If necessary, a waterproof adhesive may be applied to the joint surface 3c to seal between the joint surfaces 3c and 3c.

The joint filler 1 shown in FIG. 1 has a large adhesive force to the inner side surfaces 10a and 11a of the wall panel when the width of the joint groove 12 to be filled (approximately twice the width of the joint filler 1) is wide. Can obtain the desired adhesive holding function,
When the width of the joint groove becomes narrower, the inner surface 101, 1 of the wall panel
Since the area of adhesion to 1a becomes small, the adhesion holding function may become insufficient.

The second embodiment of the present invention shown in FIG. 3 solves this problem. This joint filler 16 is formed on the surface of the adhesive part 2 opposite to the bent part 3. A rectangular additional adhesive piece 17 having the same width as 2 is integrally provided.
Since the joint filler 16 has a narrow width of the joint groove 12,
Even if the width of the bending surface 3b of the bending portion piece 3 and the width of the bonding surface 2b of the bonding portion piece 2 are narrow, the bonding area to the side surface of the joint groove 12 increases due to the additional bonding portion piece 17, so that the bonding area decreases. It is possible to prevent the deterioration of the function. Since the other structure and operation of the second embodiment and the manner of attachment to the joint groove are the same as those of the first embodiment, detailed description will be omitted.

[Brief description of drawings]

FIG. 1 is a sectional view of a first embodiment of the present invention .

FIG. 2 is an explanatory view of a mounting aspect of the first embodiment.

FIG. 3 is an enlarged cross-sectional view of a second embodiment.

[Explanation of symbols]

1,16 Joint filler 2 Adhesive pieces 2a, 3a slope 3 Bending pieces 3b Bending surface 6 adhesive 10,11 wall panel 10a, 11a inner surface 12 joint ditch 17 Additional adhesive piece

─────────────────────────────────────────────────── --Continued from the front page (56) References JP-A-6-322849 (JP, A) JP-A-9-53280 (JP, A) JP-A-7-158172 (JP, A) Actual development Sho-62- 176306 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) E04B 1/62-1/72

Claims (2)

(57) [Claims] 1. A joint filler which is formed in a long shape so as to be fitted in a joint groove between wall panels connected in the longitudinal direction or the lateral direction, and the joint filler is made of a closed-cell foam synthetic resin. The formed adhesive part piece for adhering to the inner side surface of the joint groove and the bending part piece that can be bent with respect to the adhesive part piece, and the cross-sectional shapes of the adhesive part piece and the bending part piece are the right angles of the same shape.
In addition to being an isosceles triangle, the shape of the hypotenuse
The slopes formed are facing each other with an angle of 90 degrees.
Ri, Ru formed by applying an adhesive on one adhesive face made up of the orthogonal face of the adhesive piece, joint filler, characterized in that. 2. An adhesive part on the side opposite to the bent part
The joint filler according to claim 1, further comprising an additional adhesive piece formed integrally with the adhesive piece on the orthogonal surface .