Metal working – Method of mechanical manufacture – Muffler – manifold or exhaust pipe making
Patent
1994-04-15
1995-10-31
Cuda, Irene
Metal working
Method of mechanical manufacture
Muffler, manifold or exhaust pipe making
29234, 29235, B23P 1500
Patent
active
054617774
ABSTRACT:
The invention is directed to a method for easy and reliable manufacture of a silencer constructed with a multi-perforated inner tube and an outer tube, between which a sound-absorbing material such as glass wool, etc. is filled in, without use of a binding agent, etc. The invention is also directed to provide an apparatus for use in the manufacture of such silencer. In these method and apparatus for manufacturing the silencer, a long web of mat-shaped sound-absorbing material S is wound on and around the outer peripheral surface of the multi-perforated inner tube 1 in multiple layers and to a predetermined thickness; then, a pair of levelling members 2A, 2B, each having a semi-circular concavity which is substantially equal to the inner diameter of the outer tube, are gradually brought into contact with the outer peripheral surface of the sound-absorbing material S, while rotating the inner tube T1 with the sound-absorbing material S having been wound therearound, in its winding direction, to thereby level the outer diameter of the sound-absorbing material S to the inner diameter of the outer tube to a substantially equal degree; and the inner tube T1 is inserted into the outer tube T2 immovably fixed by the outer tube fixing means such as clamps 3A and 3B, while continuously rotating the inner tube T1.
REFERENCES:
patent: 3259206 (1966-07-01), Straw
patent: 4774985 (1988-10-01), Broadbelt et al.
patent: 5092122 (1992-03-01), Bambridge
patent: 5170557 (1992-12-01), Rigsby
patent: 5329698 (1994-07-01), Abbott
Ikeda Tsukasa
Tamano Akihiko
Cuda Irene
Sankei Giken Kogyo Kabushiki Kaisha
LandOfFree
Apparatus for manufacturing a silencer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for manufacturing a silencer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for manufacturing a silencer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1764676