Electromagnetic frictionally engaged clutch and method for...

Details Electromagnetic frictionally engaged clutch and method for... Electromagnetic frictionally engaged clutch and method for...

2007-09-11

2007-09-11

Bonck, Rodney H. (Department: 3681)

192 clutches and power-stop control

Clutches

Operators

C049S349000

Reexamination Certificate

active

10516363

ABSTRACT:
An electromagnetic frictionally engaged clutch for arranging inside a drive train connecting a drive motor and a vehicle door or flap. The arrangement ensures that the vehicle door is securely held in each intermediate position, when the clutch is in an idle state, while maintaining the possibility of a manual emergency actuation of the vehicle door. The rotor includes at least one permanent magnet in addition to the electric coil, such that when a current does not pass through the coil, the armature disk is pressed against the friction lining of the rotor, with a force which is strong enough for the vehicle door or vehicle flap to securely remain in position occupied when the clutch is an idle state, and for the friction engagement between the armature disk and the friction lining to be overcome when the vehicle door or vehicle flap is subsequently manually actuated.

REFERENCES:
patent: 2886149 (1959-05-01), Baermann
patent: 2956658 (1960-10-01), Jaeschke
patent: 3055470 (1962-09-01), Pierce
patent: 3263784 (1966-08-01), Pierce
patent: 3899061 (1975-08-01), Krug
patent: 4121382 (1978-10-01), Dietrich et al.
patent: 4126215 (1978-11-01), Puro
patent: 4496922 (1985-01-01), Pardee
patent: 5739605 (1998-04-01), Lazorchak
patent: 0 793 034 (1997-09-01), None
Abstract for JP 11301271, Nov. 2, 1999, Kawanobe et al.

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