Spring devices – Resilient shock or vibration absorber – Including energy absorbing means or feature
Patent
1989-06-26
1991-04-23
Graham, Matthew C.
Spring devices
Resilient shock or vibration absorber
Including energy absorbing means or feature
248562, 267219, F16M 500
Patent
active
050094041
ABSTRACT:
A fluid-filled elastic mount including a first and a second support member; an elastic body for elastically connecting the first and second support members; a pressure-receiving chamber filled with a non-compressible fluid and receiving a vibrational load applied to the mount; an equilibrium chamber filled with the fluid, at least partially defined by a flexible diaphragm and having a variable volume; a restricted passage for fluid communication between the two chambers; and a movable member movable by a predetermined distance between the two chambers so as to absorb a fluid-pressure difference between the two chambers. The movable member is formed of a rigid material and the restricted passage is provided in the movable member. The elastic mount further includes a holding device fixedly supported by the second support member, for holding an outer peripheral portion of the movable member such that the movements of the movable member are limited by contacts of the outer peripheral portion of the movable member with the holding device; and a cushioning member disposed between the holding device and the outer peripheral portion of the movable member.
REFERENCES:
patent: 2598762 (1952-06-01), Dath
patent: 4383679 (1983-05-01), Kakimoto
patent: 4418897 (1983-12-01), Hartel et al.
patent: 4657227 (1987-04-01), Hoffmann
patent: 4664363 (1987-05-01), Gold et al.
patent: 4753422 (1988-06-01), Thorn
patent: 4787610 (1988-11-01), Kojima et al.
patent: 4836512 (1989-06-01), Lun
Graham Matthew C.
Tokai Rubber Industries Ltd.
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