192 clutches and power-stop control – Clutches – Operators
Patent
1993-11-22
1995-03-14
Pitts, Andrea L.
192 clutches and power-stop control
Clutches
Operators
192112, 74609, F16D 2714
Patent
active
053969766
ABSTRACT:
An electromagnetic clutch includes a clutch rotor of magnetic material which is rotatably supported on a bearing. An electromagnetic housing extends into an inner hollow space of the rotor. An annular magnetic coil is disposed within an annular hollow space of the electromagnetic housing. A magnetic armature plate faces the rotor and a predetermined axial air gap is formed therebetween. The armature plate is attracted to the rotor when the magnetic coil is energized. The rotor has an annular projection which extends from an axial end thereof. An annular groove is formed on an inner peripheral surface of the projection. A shield member for shielding a front surface of the electromagnetic clutch includes an annular portion, an open end, and a flange portion extending axially from a radial end of the annular portion. The flange portion includes a plurality of connecting members formed thereon for connecting the shield member to the rotor. The shield member is connected to the clutch rotor so that the connecting members of the shield member fit into the annular groove of the annular projection of the rotor. Thus, the electromagnetic clutch is easily assembled and the shield member is easily installed and removed from the assembly when so desired. Further, the shield member resists becoming disconnected or loosened during operation of the clutch assembly.
REFERENCES:
patent: 2620900 (1952-12-01), Rostu
patent: 3036679 (1962-05-01), Millington et al.
patent: 3387689 (1968-06-01), Ovshinsky
patent: 4793457 (1988-12-01), Siewert et al.
patent: 4955954 (1990-09-01), Onishi et al.
patent: 5046594 (1991-09-01), Kakinuma
Pitts Andrea L.
Sanden Corporation
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