Frictional vibrator damper

Details Frictional vibrator damper Frictional vibrator damper

1991-02-11

1992-01-14

Peters, Jr., Joseph F.

Brakes

Operators

Automatic

188381, 68 231, 68 24, B60T 712

Patent

active

050802046

ABSTRACT:
A frictional vibration damper, in particular for washing machines with an oscillatory support of a washer unit has an approximately tube-shaped housing and a tappet displaceable in it. An articulation element is provided at the outer end of each the housing and the tappet. Further, a friction piston bearing with a friction coating on the internal wall of the housing is formed on the tappet, which friction piston is extendable by means of a linearly operating servomotor. In order to achieve high safety in operation at little expenditure, the servomotor is arranged in the tappet. It is formed by an electrically heatable thermoactuator element having a housing with a piston which changes its position relative to the housing upon heating. The piston of the servomotor directly bears against an expansion member serving to expand the friction piston.

REFERENCES:
patent: 4010829 (1977-03-01), Naito et al.
patent: 4265467 (1981-05-01), Aleck
patent: 4729458 (1988-03-01), Bauer et al.
patent: 4934493 (1990-06-01), Bauer et al.
patent: 4946008 (1990-08-01), Bauer et al.
patent: 4991412 (1991-02-01), Bauer et al.

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