Spring devices – Resilient shock or vibration absorber – Including energy absorbing means or feature
Patent
1990-06-11
1992-01-14
Butler, Douglas C.
Spring devices
Resilient shock or vibration absorber
Including energy absorbing means or feature
267219, 248562, F16F 500
Patent
active
050803301
ABSTRACT:
A fluid-filled cylindrical elastic mount including an inner sleeve, a flange member fixed to one axial end of the inner sleeve, an outer sleeve having a cylindrical portion and a flange portion which is positioned opposite to the flange member in its axial direction, and a first and a second elastic body which are interposed between the inner and outer sleeves and between the flange member and the flange portion, respectively. These first and second elastic bodies cooperate with each other to define an annular fluid chamber which is filled with a non-compressible fluid. At least one resonance member is accommodated in the fluid chamber, and cooperates with an inner wall of the fluid chamber to define a resonance portion through which the fluid is caused to flow upon application of a vibrational load. The first elastic body includes a pair of thin-walled portions which are formed on diametrically opposite sides of the inner sleeve. Each of the thin-walled portions extends between the inner and outer sleeve, in a direction substantially parallel to the axial direction of the inner and outer sleeve, and has axially opposite ends connected to the inner and outer sleeves, respectively.
REFERENCES:
patent: 4623135 (1986-11-01), Ray
patent: 4854561 (1989-08-01), Kanda
patent: 4865299 (1989-09-01), Goto
patent: 4889328 (1989-12-01), Uno et al.
patent: 4936556 (1990-06-01), Makibayashi et al.
Ballato Josie A.
Butler Douglas C.
Tokai Rubber Industries Ltd.
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