JPH09310419A - Hat type joiner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent caulking material from separating from external materials by constituting a hat type joiner out of resin composite containing a specific rate of polypropylene and at least one sort of talc, mica, and calcium carbonate of a specific rate. SOLUTION: A hat type joiner 5 is pushed in the joint between the external wall materials 1a, 1b of a structure so that the step difference parts 6a, 6b are inserted between the side ends 2a, 2b from the inside of the structure, and caulking material 10 is pushed in the joint part from the outside of the structure so as to blockade between the external wall materials 1a, 1b. The joiner 5 is constituted out of resin composite containing 40-80% of polypropylene, and at least one sort of talc, mica, and calcium carbonate of 60-20%. By using polypropylene resin containing 60-20%, of talc and the like, the caulking material 10 is prevented from joining with the joiner 5, excessive force is not applied to the caulking material 10, and the caulking material 10 is prevented from separating from the external wall materials 1a, 1b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hat type joiner used for a joint of an outer wall material of a building.

[0002]

2. Description of the Related Art FIG. 1 is an enlarged perspective view of the vicinity of a joint between outer wall materials 1a and 1b of a building. The outer wall material 1 of a building is vertically long and fits into a frame to be assembled. Outer wall material 1a, 1b
At the seam, the hat-type joiner 5 is attached to the side ends 2a and 2b of the outer wall members 1a and 1b from the inside of the building, and the stepped portion 6a,
6b is inserted. The step portions 6a and 6b are connected by a connecting portion 7. After that, the caulking material 10 is pushed into the joint from the outside of the building to close the space between the outer wall materials 1a and 1b. The caulking material 10 is a flexible silicone resin or the like, and is easily adhered to the outer wall materials 1a and 1b and the connecting portion 7 of the hat-type joiner 5 to block the inside of the building from the outside and intrude rainwater and the like. prevent.

[0003]

In the conventional hat type joiner, general synthetic resins, that is, various synthetic resins or their mixtures, and metals are used, and these adhere to the caulking material. When the caulking material is adhered to both outer wall materials and the joiner at three points, an unreasonable force is applied to the caulking material as the outer wall material expands and contracts, and the adhesive portion between the caulking material and the outer wall material peels off There is a problem that water invades from that point.

An object of the present invention is to provide a hat type joiner in which the caulking material does not separate from the outer wall material.

[0005]

According to the present invention, both side portions are provided along the inside of an outer wall material of a building, two step portions along a gap formed in a joint portion of the outer wall material, and the two step portions. It is composed of a connecting part that connects 40 to 80% polypropylene.
And a resin composition containing 60 to 20% of at least one of talc, mica and calcium carbonate. In the present invention, the resin composition is polypropylene 70 to 80%,
It is characterized by containing 30 to 20% of at least one of talc, mica and calcium carbonate.

According to the present invention, the hat-type joiner uses a polypropylene resin containing 60 to 20%, preferably 30 to 20% of at least one of talc, mica and calcium carbonate (hereinafter referred to as "inorganic additive"). This prevents the caulking material from adhering to the joiner, and the caulking material adheres only to the outer wall material. As a result, even if the gap between the joints changes due to the expansion and contraction of the outer wall material, an unreasonable force does not act on the caulking material and the joiner and the outer wall material do not separate. When polypropylene is mixed with an inorganic additive in an amount of more than 30%, impact resistance is reduced particularly at low temperature, and when it exceeds 60%, molding becomes difficult. Further, if the mixing ratio of the inorganic additive is less than 20%, the rigidity suddenly decreases as shown in FIG. 3, and a particularly long product cannot be formed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows outer wall materials 1a, 1 of a building.
It is an enlarged perspective view of the vicinity of the joint part 3 of b, and FIG. 2 is the sectional view. The outer wall material 1 is composed of a metal plate or a ceramic plate material such as cement or ceramics, and is assembled by being fitted into a frame (not shown) provided in a building. The length of the outer wall material 1 in the up-down direction is the height of the floor, for example, about 3 m, the width is often around 1 m, and the thickness is 10 to 20 mm.
Rank. The standard width of the joint portion 3 is about 10 mm. A hat-type joiner 5 is inserted into the seam portion 3 from the inside. The hat-type joiner 5 is made of polypropylene resin and its composition is as shown in Table 1. Also, the length is
The length of the outer wall material 1 that is the same as the length in the vertical direction is preferably about 3 m, and the width thereof is, for example, about 40 mm. Along the side surfaces 2a, 2b on the side of the joint portion 3 of the outer wall materials 1a, 1b,
Stepped portions 6a and 6b having a length of 3 to 10 mm are provided, and both stepped portions 6a and 6b are connected by a connecting portion 7 having a length of about 10 mm. After the hat-type joiner is inserted into the seam portion 3, the coating material 10 is pushed in from the outside of the building to close the seam portion 3 and shut off the inside of the building from the outside.
Silicone resin is mainly used as the coating material. The silicone resin adheres well to the metal plate and the ceramic plate, and the seam 3 is completely closed, but the polypropylene resin shown in Table 1 is releasable and does not adhere to the silicone resin.

[0008]

[Table 1]

The impact resistance is measured by the Izod method and is not actually measured in Examples 4 to 7, but it is estimated to be about 10 kgfcm / cm ² .

Further, talc, mica and calcium carbonate should be mixed with polypropylene particles in an amount of 200-200.
A 400 mesh particle size was used and mixed well. The mixture was softened at a temperature of 200 to 230 ° C., extrusion-molded, continuously extruded, and cut into a suitable length (about 3 m). All of these polypropylene resins had sufficient rigidity.

The coating material 10 is the outer wall material 1a, 1b.
Although the side surfaces 2a and 2b are adhered at the portions a and b, but not at the portion c of the contact surface 8 with the connecting portion 7, even if the outer wall members 1a and 1b repeatedly expand and contract. Unreasonable force does not act on the coating material, and part a or part c does not peel off.

In addition to this, when the amount of polypropylene is increased to 80% or less, the impact resistance of the polypropylene resin at low temperatures is added, and the effect of facilitating construction in cold regions is added.

[0013]

As described above, according to the present invention, 60 to 60% of the inorganic additive of the hat-type joiner used in the joint portion of the outer wall material is used.
By using a polypropylene resin added with 20%, preferably 30 to 20%, it is possible to prevent the adhesion between the coating material and the hat-type joiner, and do not exert an unreasonable force on the coating material when the gap between the joints changes, so that the coating material It is possible to eliminate peeling from the outer wall material.

[Brief description of drawings]

FIG. 1 is a perspective view of the vicinity of a joint portion of outer wall materials 1a and 1b.

FIG. 2 is a cross-sectional view of the vicinity of the joint portion 3 using the hat-type joiner 5 according to the embodiment of the present invention.

FIG. 3 is a graph showing the relationship between the addition amount of an inorganic additive and the rigidity of polypropylene resin.

[Explanation of symbols]

 1, 1a, 1b Outer wall material 3 Seam portion 5 Both side portions 6a, 6b Step portion 7 Connecting portion 8 Contact surface of the connecting portion with the coating material 10 Coating material

Claims (2)

[Claims] 1. A double-sided portion provided along an inner side of an outer wall material of a building, two step portions along a gap formed in a joint portion of the outer wall material, and a connecting portion connecting the two step portions.
A hat type joiner comprising a resin composition containing 40 to 80% of polypropylene and 60 to 20% of at least one of talc, mica and calcium carbonate. 2. The resin composition is polypropylene 70-
The hat-type joiner according to claim 1, which comprises 80% and 30 to 20% of at least one of talc, mica and calcium carbonate.