JPH0689560B2 - Sound insulation material for drainage pipes - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a sound insulation material for a drainage pipe, which covers the outer periphery of the drainage pipe in order to block the sound generated in the drainage pipe. More specifically, the drainage pipe is bent into an L-shaped tubular shape. The present invention relates to a sound insulation material for drainage pipes that covers curved pipe portions.

[Prior Art] Conventionally, in order to block the sound generated in the drain pipe, glass wool or a sound insulating sheet covering the outer periphery of the drain pipe is wound on site and tied with a wire.

[Problems to be Solved by the Invention] However, there is a problem in that the construction in which glass wool or a sound insulating sheet is wound and held with a wire or the like takes a lot of time and labor in the construction, and the quality is also unstable, on the spot. . In particular, in the case of covering the L-shaped curved pipe portion of the drainage pipe, there is a problem that the construction on site becomes extremely complicated.

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to easily mount the outer circumference of an L-shaped bent pipe portion of a drainage pipe to improve workability and construction quality. The purpose is to provide a sound insulation material for drainage pipes that is also stable and can effectively shield sound.

[Means for Solving the Problems] In order to achieve the above object, the sound insulation material A for a drainage pipe of the present invention has a structure in which a soft sound absorbing material 2 is laminated on the entire inner surface of a sound insulation sheet 1 which is bent into a tubular shape. -Shaped sound-insulating sheet 1 and cylindrical soft sound-absorbing material 2 are provided with one split groove 3 in the longitudinal direction, and a stacking piece 5 is provided from one edge of the cylindrical sound-insulating sheet 1 along the split groove 3. It is characterized in that the tubular sound insulating sheet 1 and the tubular soft sound absorbing material 2 are continuously extended over the entire length and are bent at a substantially right angle at the central portion in the longitudinal direction to form a generally L-shaped tube.

[Operation] The drainage pipe sound-insulating material A can be installed by simply spreading the drainage pipe sound-insulating material A in the split groove 3 and fitting the drainage pipe sound-shielding material A into the L-shaped tubular pipe portion of the drainage pipe 4. Can be easily attached to. In addition, the sound insulation material for drainage pipe A is expanded by the split groove 3 and the drainage pipe 4
Even if it can be applied to the curved pipe part of the above, it can be connected without a gap by overlapping and adhering the overlapping piece 5 to the end edge of the facing sound insulating sheet 1 with the drain pipe sound insulating material A being covered. .

[Example] As shown in FIG. 1, the sound insulation material A for drainage pipe is formed into a cylindrical shape such as a sound insulation sheet 1 on the outer circumference and a soft sound absorbing material 2 on the inner circumference, and has a split groove 3 over the entire length. It is provided and bent at a right angle at the central portion in the longitudinal direction to form an L-shaped tube as a whole. The sound-insulating sheet 1 is sound-insulating and flexible, and is made of, for example, a resin sheet containing a high specific gravity metal such as lead. The soft sound absorbing material 2 is a soft and sound absorbing material such as cotton or sponge, and is, for example, polyester cotton.
The overlapping piece 5 is continuously extended from one end edge of the sound insulation sheet 1 along the split groove 3 over the entire length, and the double-sided adhesive tape 6 is attached to the overlapping piece 5 over the entire length. When attaching the sound insulating material A for drainage pipes to the L-shaped curved pipe portion of the drainage pipe 4, the sound insulating material A for drainage pipes is spread by the split groove 3
As shown in the drawing, the drain pipe sound-insulating material A is wound around the drain pipe 4 so as to cover the outer periphery of the drain pipe 4, and the overlapping pieces 5 are overlapped on the opposite side edges of the sound-insulating sheet 1 and attached by the double-sided adhesive tape 6. At this time, an overtape 7 may be further attached on the stacking piece 5 if necessary.

[Effects of the Invention] The sound insulation material for drainage pipes of the present invention has a cylindrical sound insulation sheet and a cylindrical soft sound absorption material, which are obtained by laminating a soft sound absorption material over the entire inner surface of a sound insulation sheet bent into a cylindrical shape as described above. 1 split groove is provided in the longitudinal direction, and the overlapping piece is continuously run along the split groove from one end of the cylindrical sound insulating sheet for the entire length, and the cylindrical sound insulating sheet and the cylindrical soft sheet are provided. The sound absorbing material was bent at a substantially right angle at the center in the longitudinal direction to form a generally L-shaped tube. Therefore, for the sound insulation of the L-shaped bent pipe portion of the drain pipe, the split groove is pushed open to drain the pipe. Fit the sound insulation material to the curved pipe part,
In this state, the sound insulation material for the drainage pipe can be attached to the curved pipe portion of the drainage pipe by overlapping and adhering the overlapping pieces to the end edges of the sound insulation sheet facing each other. Even if the sound insulation material for drainage pipes can be easily installed even in the curved pipe part, the workability at the site can be greatly improved, and even if the sound insulation material for drainage pipes can be easily installed in this way, it is a layered piece. With this, it is possible to connect without gaps, to ensure sound insulation, and to stabilize the construction quality.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, and FIG. 2 is a sectional view of a construction state of the same as above. A is a sound insulation material for drainage pipe, 1 is a sound insulation sheet, 2 is a soft sound absorbing material, and 3 is a crack. It is a groove and 5 overlapping pieces.

Continuation of the front page (56) References Actual application Microfilm (JP, U) Application of the specification and drawings attached to the application of Sho 60-39582 (Actual Development Sho 61-154395) Micro film (JP, U) "Acoustic Technology Vol. 9 No. 4 P. 56-" which is a photograph of the contents and drawings attached to the application for Sho 58-171187 (Shokai Sho 60-79086) 60 ”1980.10.30. The Japan Society for Acoustic Materials "Technical Presentation of the Japan Society for Noise Control Engineering, P.285-288," 1985.9 Japan Society for Noise Control Engineering, Building Technology Supplement, Volume No. 499 "All about soundproofing and articulation of houses P.126, P.142" 1988.12 Economic Selection Co., Ltd.

Claims (1)

[Claims] 1. A soft sound absorbing material is laminated over the entire surface of an inner circumference of a sound insulating sheet bent in a cylindrical shape, and one split member is provided over the cylindrical sound insulating sheet and the soft sound absorbing material in the longitudinal direction. With a groove,
From the one edge of the cylindrical sound insulation sheet, the stacked pieces are continuously run along the split groove over the entire length, and the cylindrical sound insulation sheet and the cylindrical soft sound absorbing material are bent at a substantially right angle in the longitudinal central portion. A sound insulation material for drainage pipes, characterized in that the whole is formed into a substantially L-shaped tube.