Title:
SOUND-PROOFING TUBULAR MEMBER
Document Type and Number:
WIPO Patent Application WO/1999/014526
Kind Code:
A1
Abstract:
A sound-proofing tubular member which is used as a piping for a plumbing work of a building or an air conditioner, and characterized in that a continuous foamed resin layer having an outer skin portion which is not foamed or is foamed at a low ratio, is formed integrally around a rigid resin tube constituting the sound-proofing tubular member. Therefore, this sound-proofing member can eliminate the site fitting work of a sound-proofing layer. Since the foamed resin layer around the rigid resin tube of this sound-proofing tubular member has both sound absorption and sound insulating properties, the trouble of installing separately a sound absorption layer and a sound insulating layer can be eliminated.
Inventors:
OHIRA YASUYUKI
HORI MITSUO
HORI MITSUO
Application Number:
PCT/JP1997/003254
Publication Date:
March 25, 1999
Filing Date:
September 12, 1997
Export Citation:
Assignee:
SHISHIAI KK (JP)
International Classes:
F16L9/21; (IPC1-7): F16L55/02
Foreign References:
| JPH0336449U | 1991-04-09 | |||
| JPH0394496U | 1991-09-26 | |||
| JPH0559963A | 1993-03-09 | |||
| JPS62196527U | 1987-12-14 | |||
| JPH06322063A | 1994-11-22 | |||
| JPS4637108Y1 | 1971-12-21 | |||
| JPS5425514U | 1979-02-20 |
Attorney, Agent or Firm:
Hiroe, Takenori (Masaki Kurifune Gifu-shi, Gifu 502, JP)
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