192 clutches and power-stop control – Vortex-flow drive and clutch – With brake
Patent
1993-05-18
1995-04-11
Bonck, Rodney H.
192 clutches and power-stop control
Vortex-flow drive and clutch
With brake
74425, 188 8277, E05F 1150
Patent
active
054049750
ABSTRACT:
A compact and quiet-operating motor vehicle window drive has the following features: a first drive element or worm gear drives an entraining element with tangential play; a toothed rim is provided in a gear drive housing, axially concentric with the entraining element; a detent pawl that can engage the toothed rim in a self-locking pivot position is mounted in the manner of a toggle lever in the entraining element; a friction ring, with a first disengagement cam in front of and a second detent pawl cam behind the detent pawl, is mounted frictionally and rotatably in the gear drive housing in such a way that when motor drive occurs in "raise" mode, the friction ring is moved by the entraining element by means of the detent pawl which contacts the first disengagement cam and when motor drive occurs in "lower" mode, the friction ring is moved directly by the first drive element (worm gear); and when the entraining element is driven from the output side in the "lowering" rotation direction, the detent pawl can be engaged in a self-locking manner in the toothed rim by means of the second detent pawl cam.
REFERENCES:
patent: 2339232 (1944-01-01), Moroney
patent: 2918275 (1959-12-01), Arlauskas
patent: 3757472 (1973-09-01), Rogakos
patent: 3976172 (1976-08-01), F'Geppert
patent: 4899608 (1990-02-01), Knappe et al.
patent: 5040430 (1991-08-01), Adam et al.
Bonck Rodney H.
Siemens Aktiengesellschaft
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