Spring devices – Resilient shock or vibration absorber – Including energy absorbing means or feature
Patent
1991-12-19
1993-01-05
Butler, Douglas C.
Spring devices
Resilient shock or vibration absorber
Including energy absorbing means or feature
267220, 280710, 280716, F16F 136, F16M 1300, B60G 1126
Patent
active
051763699
ABSTRACT:
A fluid-filled cylindrical elastic mount including an inner sleeve, an outer sleeve, at least one elastic body disposed between these sleeves for flexible connection therebetween. The elastic mount has at least one fluid chamber extending in a circumferential direction of the mount between the two sleeves. The elastic mount further includes a wing member fixed to one of the inner and outer sleeves so as to protrude toward the other sleeve. Each fluid chamber is divided by the wing member into two axially opposite sections. Between a radial end face of the wing member and an inner wall of each fluid chamber is defined a restricted fluid passage which has a predetermined radial dimension and communicates with the two sections. The elastic mount has at least one rigid protrusion protruding radially from the other sleeve by a radial distance which is larger than the predetermined radial dimension of the restricted fluid passage. The rigid protrusion(s) defines at least one of axially opposite ends of at least a radial portion of the fluid chamber(s), which ends are opposed to each other in an axial direction of the mount.
REFERENCES:
patent: 4005810 (1991-04-01), Sawada et al.
patent: 4763884 (1988-08-01), Matsui et al.
patent: 4786036 (1988-11-01), Kanda
patent: 4877262 (1989-10-01), Tanahashi et al.
patent: 4883260 (1989-11-01), Kanda
patent: 5024461 (1991-06-01), Miyakawa et al.
patent: 5040775 (1991-08-01), Miyakawa
patent: 5080330 (1992-01-01), Nanno
Butler Douglas C.
Tokai Rubber Industries Ltd.
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