Electromagnetic clutch

Details Electromagnetic clutch Electromagnetic clutch

1994-02-10

1995-08-29

Pitts, Andrea L.

192 clutches and power-stop control

Clutches

Operators

192 30V, 1921061, F16D 2710, F16D 2714

Patent

active

054452562

ABSTRACT:
An electromagnetic clutch capable of reducing a noise generated upon contact of an armature with rotor. Connecting member 20 for connecting inner and outer rings 5a and 5b of the armature are integrally formed with arms 19 extending radially inwardly from locations where the connection members 20 are connected to the inner ring 5a by rivets 12. The arms 17 are in face to face contact with an elastic member 18 made of rubber, which is held by the inner hub 7 by means of a retainer 19. Upon the movement of the armature 5 toward to rotor 4 by means of an electromagnetic force, just before the contact of the armature 5 with the rotor 4, a steep increase in a force for opposing the movement of the armature 5 with respect to the rotor 4 is obtained, thereby reducing an impact upon the contact, and reducing the noise.

REFERENCES:
patent: 3455421 (1969-07-01), Miller
patent: 3565223 (1971-02-01), Pierce
patent: 4296851 (1981-10-01), Pierce
patent: 4574930 (1986-03-01), Koitabashi
patent: 4624354 (1986-11-01), Koitabashi
patent: 4972932 (1990-11-01), Nakamura et al.
patent: 5009297 (1991-04-01), Gonda
patent: 5046594 (1991-09-01), Kakinuma
patent: 5119915 (1992-06-01), Nelson
patent: 5195625 (1993-03-01), Chang et al.
patent: 5232076 (1993-08-01), Nakagawa et al.

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