Document Type and Number:
Japanese Patent JPS5738819
Kind Code:
B1
Abstract:
A magnetic friction clutch wherein two disk-shaped armatures are movable axially of and rotate with the driven shaft. One of the armatures is adjacent to a flywheel which is rotated by the output shaft of an electric motor and the other armature is adjacent to a stationary or rotary braking member. Each armature has a ring-shaped nave which is mounted on the driven shaft and a ring-shaped rim which surrounds and is magnetically separated from the respective rim. Annular facings of magnetically non-conductive material are provided on each of the armatures between the respective nave and rim and their exposed surfaces are flush with pole faces provided on the corresponding rim and nave. Two windings are mounted in the space between the two armatures and one thereof is energizable to cause the facing and the pole faces of one armature to bear against the flywheel, the other winding being energizable to cause the facing and the pole faces of the armature to bear against the braking member. Channels in the braking member, naves of the armatures and the flywheel serve to convey streams of cooling air which are induced by annuli of blades on the flywheel. The material of those portions of each rim and nave which are adjacent to the respective pole faces exhibits the same resistance to wear as the material of the facings.
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Application Number:
JP9835771A
Publication Date:
August 18, 1982
Filing Date:
December 07, 1971
Export Citation:
International Classes:
F16D67/06; H02K7/112; (IPC1-7): F16D67/06; H02K7/112
Domestic Patent References:
| JPS397606Y1 | ||||
| JP39010255A |
Foreign References:
| US3036680A | 1962-05-29 |