Bellows type shock absorber

Details Bellows type shock absorber Bellows type shock absorber

1989-05-22

1990-12-04

Halvosa, George E. A.

Spring devices

Compound

Rubber

188268, 188298, 188371, 267 6415, 267122, 267195, 267259, F16F 308

Patent

active

049748203

ABSTRACT:
A bellows type shock absorber comprises a sealed bellows, a shock absorbing column which is provided with a chamber around it inside the bellows and which is along the axial line of the bellows and combined with the bellows so that it physically varies in conjunction with expansion and contraction of the bellows. Also, the bellows type shock absorber may have a through hole which communicates the internal chamber and the outside, and preferably the shock absorbing column is made of a kind of gelled material with a penetration value of approximately 50 to 200. This shock absorber is provided with the main bellows and a sub-bellows having a spring constant differing from that of the main bellows and a through hole which communicates the internal chamber of the main bellows and the internal chamber of the sub-bellows.

REFERENCES:
patent: 3202388 (1965-08-01), Goodwin
patent: 3243154 (1966-03-01), Dryden
patent: 3588159 (1971-06-01), Duckett et al.
patent: 3695665 (1972-10-01), Matsuura
patent: 4002244 (1977-01-01), Matsumoto et al.
patent: 4005858 (1977-02-01), Lochner
patent: 4576366 (1986-03-01), Gallas et al.
European Search Report, No. 87 30 4114, dated Sep. 2, 1988.
IBM Technical Disclosure Bulletin, vol. 21, No. 5, dated Oct. 1978, "Variable Damping Supporter", p. 1765.
Patent Abstracts of Japan, vol. 4, No. 64, dated May 1980, "Vibration-Proof Support".

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