Electric-motor with built-in electromagnetic disk clutch and brake

Claim 1

In an electric motor comprising a housing, a rotor and a stator, the improvement wherein said motor further includes integrated speed control of its output, wherein said improved motor comprises: a constantly revolving unit including said rotor and a flywheel connected thereto; an intermittently revolving unit including a single axial shaft which is the only output shaft of said motor, said shaft extending through said housing; and a stationary unit including said housing and said stator, wherein said intermittently revolving unit further includes a clutch disk and a brake disk, both of said disks being non-axiallydisplaceable and non-rotatably attached to said shaft on opposite sides of said rotor, said constantly revolving unit is axially non-displaceably but rotatably mounted about said shaft and further includes an axially displaceable clutch magnetic armature connected to said flywheel, and said stationary unit further includes an axially displaceable brake magnetic armature mounted on said housing and magnetic means fixedly mounted in said housing in association with each of said clutch magnetic armature and said brake magnetic armature for controllably magnetically attracting said clutch magnetic armature and said brake magnetic armature and thereby causing said armatures to move into contact respectively with said clutch disk and said brake disk against axially directed spring actions, said intermittently revolving unit further including set sCrew adjustment means on each end of said shaft for moving said brake and clutch disks respectively axially along said shaft, wherein said intermittently revolving unit is connected to said constantly revolving unit upon activation of said magnetic means associated with said clutch magnetic armature and said intermittently revolving unit is connected to said stationary unit upon activation of said magnetic means associated with said brake magnetic armature, each of said magnetic means forming one bearing plate of said housing on opposite sides of said rotor.