JP3616931B2 - Exterior wall joint structure - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to an outer wall joint gasket which is attached to a joint of an outer wall panel stretched on the surface of a building and prevents water from entering.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, an outer wall joint structure that is attached to a joint of an outer wall panel stretched on the surface of a building and prevents inundation is used as shown in FIGS.
[0003]
In FIG. 1, outer wall panels 30, 30 are attached to frames 20, 20 by sandwiching a secondary waterproofing waterproof sheet 90 on the outer surface of the building equipment 10, and the outer wall panels 30, 30 are respectively attached to the outer surfaces of the frames 20, 20. In addition, a joint 40 formed between the outer wall panels 30 and 30 is packed with a retrofit type gasket 50 configured as follows. That is, 51 is a columnar portion, and 52 is a primary water stop lip that elastically contacts the end surfaces of the outer wall panels 30, 30, and is provided in a plurality of stages on both sides of the columnar portion 51.
[0004]
In FIG. 2, the outer wall panels 30 and 30 are attached to the equipment 10 without a frame, and a gasket 60 (outer wall panels 30 and 30) configured as follows on a joint 40 formed between the outer wall panels 30 and 30. Before installation, it is packed with a tipping type to be installed. That is, 61 is a columnar portion, and 62 is a primary water stop lip that is brought into elastic contact with the end surfaces of the outer wall panels 30, 30. A flat plate portion 65 is sandwiched between the equipment 10 and the inner surfaces of the outer wall panels 30 and 30 and is integrally coupled to the columnar portion 61 in a T shape. Reference numeral 66 denotes a secondary water stop lip that is elastically contacted with the outer wall panels 30, 30. The secondary water stop lip protrudes in a plurality of steps on the outer surface of the flat plate portion 66 and is a joiner type.
[0005]
However, all of the conventional outer wall joint structures described above have variations in construction on the joint 40, and shrink with the passage of time, resulting in gaps, lowering water tightness, or falling off in the worst case. There is a problem that fire resistance is low.
[0006]
[Problems to be solved by the invention]
The problem to be solved is that the conventional outer wall joint structure described above is low in water tightness or may fall off in the worst case, and is low in fire resistance. It solves that problem and provides an outer wall joint structure with excellent water tightness and fire resistance.
[0007]
[Means for Solving the Problems]
The present invention will be described with reference to FIGS. In this outer wall joint structure, the primary waterproof gasket 70 is provided with a plurality of primary water stop lips 72, 72 projecting from the end faces of the outer wall panels 30, 30 on both sides of the columnar portion 71. The base portion 73 is coupled to the base end of the frame 20, and the center mounting portion 22 of the frame 20 protrudes outward from the parallel portion 21 parallel to the outer wall panels 30, 30 of the frame 20 toward the center. A contact portion 24 having a substantially T-shaped cross section is provided, and the corresponding contact portion 24 is brought into contact with the inner surface of the outer wall panels 30, 30. The retainer 25 for fitting the base portion 73 of the water gasket 70 is integrally coupled, and the retainer 25 has a guide function for positioning when the outer wall panels 30 and 30 are attached. , U-shaped cross section It binds together the sponge-like hollow seal portion 82 to the welt portion 81, the tip of the vertical portion 26, 26 on both sides attaching portion 23, 23, which is vertically parallel portion 21 of the frame (20), The U-shaped welt portions 81 and 81 of the secondary water-stop and fire-resistant gaskets 80 and 80 are fitted, and the hollow seal portions 82 are brought into contact with the inner surfaces of the outer wall panels 30 and 30. .
[0008]
【Example】
3 and 4, an embodiment of the outer wall joint structure of the present invention will be described. 20 is a frame made of aluminum, 30 and 30 are outer wall panels stretched on the outer surface of the frame 20, and 70 is a space between the outer wall panels 30 and 30. 1 is a primary water-stop gasket made of a rubber-like elastic material that seals the joint 40 formed on the surface, and is a co-extruded product of synthetic rubber such as chlorosulfonated polyethylene, chlorinated polyethylene, silicone coating material and ethylene-propylene copolymer. And attached to a central attachment portion 22 projecting outward at the center of a parallel portion 21 parallel to the outer wall panels 30 and 30 of the frame 20.
[0009]
Reference numeral 80 denotes a pair of secondary and fireproof gaskets made of a rubber-like elastic body that seals between the frame 20 and the inner surfaces of the outer wall panels 30 and 30, and separate from the primary waterstop gasket 70. It is a sponge and solid co-pressed product such as ethylene propylene copolymer and chloroprene rubber, or a synthetic rubber solid extruded product such as chloroprene rubber, and is mounted on both sides extending from both ends of the parallel part 21 of the frame 20 It is attached to the part 23.
[0010]
The embodiment of the outer wall joint structure according to the present invention will be further described. The primary water-stop gasket 70 includes a plurality of primary water-stop lips 72 and 72 which are in elastic contact with the end surfaces of the outer wall panels 30 and 30 on both sides of the columnar portion 71. And a base portion 73 is coupled to the base end of the columnar portion 71, and each secondary water-stop gasket 80 has a swung-shaped hollow seal portion 82 at the distal end of the U-shaped welt portion 81. Are combined together.
[0011]
Further, the center mounting portion 22 of the frame 20 is further provided with a contact portion 24 having a T-shaped cross section for contacting the inner surface of the outer wall panels 30, 30 on the parallel portion 21, and on the outer surface of the contact portion 24. A vertical retainer 25, 26, in which a flange-like retainer 25 for fitting the base portion 73 of the primary water-stop gasket 70 is integrally coupled, and both side mounting portions 23, 23 of the frame 20 are suspended from the parallel portion 21. The U-shaped welt portions 81 and 81 of the secondary water-stop and fire-resistant gaskets 80 and 80 are respectively fitted to the tips of the two. In FIG. 3, enormous portions 27 and 27 into which U-shaped welt portions 81 and 81 are fitted are coupled to the tips of the vertical portions 26 and 26.
[0012]
[Action]
First, since the primary water stop gasket 70 is attached to the retainer 25 of the central attachment portion 21 of the frame 20, the center attachment portion 21 is used as a guide for positioning the insertion into the primary water stop gasket 70, in particular, the retainer 25. By making the width equal to the width of the joint 40, it is possible to function as a guide with higher accuracy, the variation in construction can be remarkably reduced, and the primary waterproof gasket 70 can be prevented from falling off. . Moreover, since the variation in construction has been reduced, the water tightness between the primary water stop lips 72, 72 and the outer wall panels 30, 30 is enhanced.
[0013]
As for fire resistance, the outer wall panel 30 and the frame 20 to be brought into contact with the outer wall panel 30 function as a primary barrier for intruding, but the secondary water stop makes the gasket 80 a material having a high fire resistance, for example, Since it is made of chloroprene or the like, the secondary water-stop and fire-resistant gasket 80 surrounds the back of the joint 40 and functions as a secondary barrier that prevents the intrusion of the flame into the building, so that the fire resistance is remarkably increased. .
[0014]
【The invention's effect】
Since the present invention is configured as described above, the variation in construction is extremely small, the water tightness is extremely excellent, and the fire resistance does not fall off and is excellent in fire resistance.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a first conventional example.
FIG. 2 is a cross-sectional view showing a second conventional example.
FIG. 3 is a cross-sectional view showing an embodiment of the present invention.
FIG. 4 is a cross-sectional view showing another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Equipment 20 Frame 21 Parallel part 22 Center attachment part 23 Both-sides attachment part 24 Contact part 25 Retainer 26 Vertical part 27 Enlarged part 30 Outer wall panel 40 Joint 50 Gasket 51 Columnar part 52 Primary water stop lip 60 Primary water stop gasket 61 Columnar part 62 Primary waterstop lip 65 Flat plate part 66 Secondary waterstop lip 70 Primary waterstop gasket 71 Columnar part 72 Primary waterstop lip 73 Base part 80 Secondary waterstop / fireproof gasket 81 Welt part 82 Sealing part 90 tarpaulin

Claims (1)

The primary water-stop gasket (70) projects a plurality of primary water-stop lips (72, 72) on both sides of the columnar portion (71) to elastically contact the end faces of the outer wall panels (30, 30). A base portion (73) is joined to the base end of the portion (71), and the central mounting portion (22) of the frame (20) is parallel to the outer wall panels (30, 30) of the frame (20) ( 21) is provided with a contact portion (24) having a substantially T-shaped cross section including a projecting portion projecting outward at the center, and the corresponding contact portion (24) is provided on the outer wall panel (30, 30). it is brought into contact with the inner surface, the outer surface of the contact portion (24), the base portion of the retainer (25) for fitting the (73) while coupled together of the 1 Tsugitomesui gasket (70), The retainer (25) is a guide for positioning when mounting the outer wall panels (30, 30). Equipped with a function,
Furthermore, each secondary water stop gasket (80) is formed by integrally joining a sponge-like hollow seal portion (82) to a welt portion (81) having a U-shaped cross section,
The both side mounting portions (23, 23) of the frame (20) are attached to the tips of the vertical portions (26, 26) suspended from the parallel portions (21), respectively, with secondary water-stop and fire-resistant gaskets (80, 80). An outer wall joint structure in which a U-shaped welt part (81, 81) is fitted and the hollow seal part (82) is brought into contact with the inner surface of the outer wall panel (30, 30).

Images