Electromagnetic clutch having high torque transfer

Details Electromagnetic clutch having high torque transfer Electromagnetic clutch having high torque transfer

1987-09-08

1990-01-09

Bonck, Rodney H.

192 clutches and power-stop control

Clutches

Operators

192107R, 335220, F16D 2710

Patent

active

048921769

ABSTRACT:
An electromagnetic clutch is disclosed which includes a first rotatable member rotatably supported on a first bearing. The first rotatable member is provided with at least one annular groove along an outer surface thereof for receiving a belt rotatably connecting the first rotatable member to an external driving source. The first rotatable member further has a magnetic axial end plate. The magnetic axial end plate has at least one arcuate slit. A second rotatable member is rotatably supported on a second bearing. An annular magnetic member is supported on the second rotatable member so as to be capable of limited axial movement and faces the axial end plate of the first rotatable member with an axial gap therebetween. An electromagnet is associated with one of the rotatable members and the annular magnetic member for attracting the other of the rotatable members and the annular magnetic member. At least one of either the axial end plate or the annular magnetic member has an annular groove to increase the torque transfer. Therefore, the average effective radius and frictional torque is increased.

REFERENCES:
patent: 3162285 (1964-12-01), Sala
patent: 3384213 (1968-05-01), Bernard et al.
patent: 3530416 (1970-09-01), Klinkenberg
patent: 3842378 (1974-10-01), Pierce
patent: 4090161 (1978-05-01), Fuhrer et al.
patent: 4190141 (1980-02-01), Bennett et al.
patent: 4227600 (1980-10-01), Shirai
patent: 4632236 (1986-12-01), Koitabashi
patent: 4705973 (1987-11-01), Koitabashi

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