Spring devices – Resilient shock or vibration absorber – Including energy absorbing means or feature
Patent
1993-04-29
1995-02-14
Oberleitner, Robert J.
Spring devices
Resilient shock or vibration absorber
Including energy absorbing means or feature
26714013, F16F 910
Patent
active
053888120
ABSTRACT:
A liquid-sealed type vibration isolator has a resilient member disposed between the a mounting member, connected to one of a vibration-generating portion and a vibration-receiving portion, and a second mounting member, connected to the other one of the vibrator-generating portion and the vibrator-receiving portion, and the resilient member is adapted to undergo deformation during occurrence of vibrations. A pressure-receiving liquid chamber is disposed in such a manner as to be capable of expanding and shrinking by using the resilient member as a portion of a partition wall thereof. A limiting passageway allows the pressure-receiving liquid chamber and the auxiliary liquid chamber to communicate with each other. A vibrating element is supported by one of the first mounting member and the second mounting member via a resilient supporting member in such a manner as to be movable along a predetermined axis, and the vibrating element constitutes a portion of another partition wall of the pressure-receiving liquid chamber so as to be subjected to the hydraulic pressure of the pressure-receiving liquid chamber. A solenoid has a coil and a plunger adapted to move the vibrating element in one of two predetermined directions along the axis. A spring urges the vibrating element in the other one of the two predetermined directions.
REFERENCES:
patent: 4650170 (1987-03-01), Fukushima
patent: 4742998 (1988-05-01), Schubert
patent: 4793600 (1988-12-01), Kojima
patent: 4869474 (1989-09-01), Best et al.
patent: 4919402 (1990-04-01), Doi
patent: 5042786 (1991-08-01), Freudenberg et al.
Kojima Hiroshi
Takano Kazuya
Bridgestone Corporation
Muratori Alfred
Oberleitner Robert J.
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