Spring devices – Resilient shock or vibration absorber – Including energy absorbing means or feature
Patent
1993-06-14
1995-02-28
Oberleitner, Robert J.
Spring devices
Resilient shock or vibration absorber
Including energy absorbing means or feature
248550, F16F 1300
Patent
active
053930401
ABSTRACT:
A hydraulic damping device is provided including a housing having a first main liquid chamber defined in part by a rubber body which expands and contracts upon input of vibrations in a vertical direction, a second main liquid chamber defined in part by a rubber body which expands and contracts upon input of vibrations in a horizontal direction, and an auxiliary liquid chamber defined in part by a rubber film, which communicates with the first and second main liquid chambers through passageways. Upon input of vibrations in a vertical direction, one or more valves opens the passageway communicating with the first main liquid chamber and closes the passageway communicating with the second main liquid chamber to force a damping liquid filled within the first main liquid chamber to flow into the auxiliary liquid chamber, thereby damping vibrations in a vertical direction. Upon input of vibrations in a horizontal direction, the valve(s) closes the passageway communicating with the first main liquid chamber and opens the passageway communicating with the second main liquid chamber to force the damping liquid within the second main liquid chamber to flow into the auxiliary liquid chamber, thereby damping vibrations in a horizontal direction.
REFERENCES:
patent: 4867263 (1989-09-01), Sugino et al.
patent: 5139241 (1992-08-01), Hamaekers et al.
patent: 5172893 (1992-12-01), Bouhier et al.
Maeno Takashi
Ueno Masato
Oberleitner Robert J.
Poon Peter M.
Toyoda Gosei Co,., Ltd.
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