Spring devices – Resilient shock or vibration absorber – Including energy absorbing means or feature
Patent
1998-08-10
2000-10-17
Oberleitner, Robert J.
Spring devices
Resilient shock or vibration absorber
Including energy absorbing means or feature
267219, F16F 1300
Patent
active
061318949
ABSTRACT:
A liquid chamber is arranged with a first support member (1), a second support member (2) and an elastic member (3), an inside of the liquid chamber is divided to a main liquid chamber (11) and an auxiliary liquid chamber (12) by a partition member (10) and both chambers are communicated with an orifice passage (14). On an inner face of a conical portion (4) of the elastic member (3), thin wall portions (7) are provided by forming recess portions (6) at axis symmetrical positions so as to yield a minimum value for a dynamic spring characteristic against a vibration input in a designated medium frequency by a membrane resonance and a medium to high frequency device (17) projecting into the main liquid chamber (11) is provided to the first support member (1) so as to yield a minimum value for the dynamic spring characteristic against a vibration input in a designated high frequency. Furthermore, it is possible that the thin wall portion (7) is adapted to be asymmetric, the medium to high frequency device (17) is arranged to be non-circular, an elastically deforming wall is used for the fixed partition wall and the elastic control mechanism is provided to switch a plurality of the orifice passages at any time.
REFERENCES:
patent: 4826126 (1989-05-01), Katayama et al.
patent: 4889325 (1989-12-01), Flower et al.
patent: 4997168 (1991-03-01), Kato
patent: 5104100 (1992-04-01), Simuttis
patent: 5433421 (1995-07-01), Ishiyama
patent: 5501433 (1996-03-01), Satori
patent: 5667205 (1997-09-01), Mutoh et al.
patent: 5772189 (1998-06-01), Satori et al.
Patent Abstracts of Japan, JP 30 104824 A, vol. 009, No. 256, Honda Giken Kogyo Kabushiki Kaisha, (Jun. 10, 1985).
Ninakawa Osamu
Satori Kazutoshi
Oberleitner Robert J.
Sy Mariano
Yamashita Rubber Kabushiki Kaisha
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