Spring devices – Resilient shock or vibration absorber – Including energy absorbing means or feature
Patent
1989-03-02
1989-09-12
Butler, Douglas C.
Spring devices
Resilient shock or vibration absorber
Including energy absorbing means or feature
180300, 248562, 248636, 2671412, 267219, F16F 500, F16F 910, F16F 1300, F16F 1500, B60K 512
Patent
active
048652997
ABSTRACT:
A fluid-filled cylindrical elastic mount having an inner and an outer sleeve which are disposed in mutually spaced-apart relation with each other, and an elastic body interposed between the inner and outer sleeves so as to elastically connect the inner and outer sleeves. The elastic body at least partially defines a fluid-filled chamber located between the inner and outer sleeves in a load-receiving direction in which a vibrational load is applied to the elastic mount. The elastic body includes a thin-walled portion which partially defines the fluid-filled chamber and which elastically yields to permit the chamber to be elastically deformed upon application of the vibrational load. A movable member is accommodated in the fluid-filled chamber such that the movable member is freely movable over a predetermined distance in the load-receiving direction. The movable member and inner surfaces of the fluid chamber cooperate with each other to define resonance portions having a predetermined radial depth as measured in the load-receiving direction.
REFERENCES:
patent: 4728086 (1988-03-01), Ishiyama et al.
patent: 4738434 (1988-04-01), Marjoram et al.
patent: 4738435 (1988-04-01), Flower et al.
patent: 4749173 (1988-06-01), Kanda
patent: 4749174 (1988-06-01), Kanda
patent: 4768760 (1988-09-01), LeFol
patent: 4790520 (1988-12-01), Tanaka et al.
Butler Douglas C.
Tokai Rubber Industries Ltd.
Toyota Jidosha & Kabushiki Kaisha
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