Spring devices – Resilient shock or vibration absorber – Including energy absorbing means or feature
Patent
1988-01-20
1989-08-29
Kashnikow, Andres
Spring devices
Resilient shock or vibration absorber
Including energy absorbing means or feature
248562, 248636, 267 35, 267219, F16F 1300, B60K 512
Patent
active
048610038
ABSTRACT:
The bearing includes of a beaker-type housing part in which a soft rubber support spring is arranged bearing a load supporting plate which is enclosed by a disc-type control spring arranged transversely to the support spring. The combination of the control spring and the load support plate is clamped radially pre-stressed in the upper portion of the beaker-type housing part such that the beaker-type housing part is hermetically closed in a gas-tight and liquid-tight manner. A clapper-type damping piston is suspended in a recess at the lower side of the load support plate and is free to move in an axial direction; The piston head is slidably fitted in a substantially exactly fitting manner into a cylindrical tube attached to the bottom of the beaker-type housing part. The hermetically closed bearing is filled with a damping liquid. When the load supporting plate starts its vibration and pushes the piston into the cylindrical tube, the damping liquid enclosed in the lower part of the damping cylinder is displaced either through a throttle opening at the bottom of the damping cylinder and/or through an annular gap between the piston and the inner surface of the cylindrical tube.
REFERENCES:
patent: 2806375 (1957-09-01), Wood
patent: 4460168 (1984-07-01), Obadal
patent: 4632372 (1986-12-01), Nakajima et al.
Pletsch Hubert
Wolf Franz J.
Graham Matthew C.
Kashnikow Andres
WOCO Franz-Josef Wolf & Co.
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