Input responsive damper

Details Input responsive damper Input responsive damper

1990-06-05

1992-08-04

Oberleitner, Robert J.

Brakes

Internal-resistance motion retarder

Using a rotary-type fluid damper

188267, 188184, 16 64, 16 49, F16D 5700

Patent

active

051350831

ABSTRACT:
According to the invention, there is provided an input responsive damper comprising a worm wheel for being rotationally driven by an object of damping, a worm for being rotated by the worm wheel, a guide for movably guiding along the axis of the worm a worm support member rotationally supporting the worm, a biasing device for biasing the worm support member in the direction opposite to the direction of the biasing force of the worm wheel applied to the worm and a damping device having a combination of a magnet and a conductor arranged concentrically around the rotary axis of the worm, the magnet and the conductor rotating relative to each other, either of the magnet and the conductor being supported by the worm and the other being supported by a stationary member. This induction type damper provides greater than normal damping when greater than normal force is applied by the object of damping. Frictional type and fan type damping enhancement element are also disclosed. Such an input responsive damper has the capability of increasing its damping effect as it axially moves when it is subjected to excessively large rotary force without contacting the object of damping. Therefore, an input responsive damper can generate damping force automatically and reliably as a function of the applied rotary force without generating noise.

REFERENCES:
patent: 3935614 (1991-06-01), Pannone et al.
patent: 4130030 (1978-12-01), Stratienko
patent: 4616737 (1986-10-01), Orii
patent: 4912806 (1990-04-01), Orii et al.
patent: 4979261 (1990-12-01), Lasier et al.
patent: 5048151 (1991-09-01), Orii et al.

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