Electromagnetic clutch and brake

Claim 1

An electromagnetic clutch for use with a motor having a fixed bracket and a rotatable motor shaft, comprising a flywheel attached to said motor shaft for rotation therewith; an output shaft rotatably supported by said bracket, the axis of rotation of said output shaft being substantially coaxial with the axis of rotation of said motor shaft; a clutch rotor attached to said output shaft, said clutch rotor being located between said flywheel and a radial portion of said bracket; a clutch section including a plurality of clutch pins attached to a face of said flywheel opposing said clutch rotor; a plurality of clutch sliding members, each of said clutch sliding members surrounding one of said plurality of clutch pins and being axially displaceable with respect thereto; a clutch ring having a plurality of apertures therein, each of said apertures surrounding one of said plurality of clutch sliding members; a plurality of clutch buffer members interposed between each of said plurality of clutch sliding members and said clutch ring, said clutch ring being prevented from rotating relative to said flywheel but being displaceable in the axial direction with respect thereto, said buffer members permitting radial expansion of said clutch ring with respect to said flywheel; and a clutch solenoid secured to said bracket adjacent said clutch ring, energization of said clutch solenoid bringing said clutch ring into contact with said clutch rotor, whereby said output shaft is rotated as a unit with said motor shaft; and a brake section including a plurality of brake pins attached to a face of said bracket opposing said clutch rotor; a plurality of brake sliding members, each of said brake sliding members surrounding one of said plurality of brake pins and being axially displaceable with respect thereto; a brake ring having a plurality of apertures therein, each of said apertures surrounding one of said plurality of brake sliding members; a plurality of brake buffer members interposed between each of said plurality of brake sliding members and said brake ring, said brake ring being prevented from rotating relative to said bracket but being displaceable in the axial direction with respect thereto, said buffer means permitting radial expansion of said brake ring with respect to said bracket; and a brake solenoid secured to said bracket adjacent said brake ring, energization of said brake solenoid bringing said brake ring into contact with said clutch rotor, whereby the rotation of said output shaft is stopped.