Lightweight electromagnetic clutch with shock absorber

Details Lightweight electromagnetic clutch with shock absorber Lightweight electromagnetic clutch with shock absorber

1978-10-30

1980-12-30

Bonck, Rodney H.

192 clutches and power-stop control

Clutches

Torque responsive

192 54, 192 84C, 1921061, 192109R, F16D 2710

Patent

active

042418186

ABSTRACT:
An electromagnetic clutch is disclosed of the type having an armature member axially movable into frictional driving engagement with an inner body upon energization of an electromagnetic coil, and provided with a torque boosting arrangement consisting of a plurality of balls disposed in opposed corresponding conical pockets formed in ball seats mounted to the armature member and formed into an axially opposed ball plate element. This clutch design features a light weight construction in which most of the drive components are constructed of formed sheet metal, and in which a shock absorber is provided by a molded elastomeric ring located in the space between the ball plate element and a formed cup-shaped driven member enclosing the ball plate element. The shock absorbing material located between radial faces of the cup-shaped element and the ball plate acts to slow the development of the axial force generated by the torque boosting balls, while yielding to act as a torsional shock absorber.

REFERENCES:
patent: 2138129 (1938-11-01), Wolfram
patent: 3205989 (1965-09-01), Mantey
patent: 3384213 (1968-05-01), Bernard et al.
patent: 3425529 (1969-02-01), Hayashi
patent: 3455421 (1969-07-01), Miller
patent: 3752279 (1973-08-01), Briar
patent: 4079821 (1978-03-01), Miller

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