Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1998-07-30
2000-08-08
Ramirez, Nestor
Electrical generator or motor structure
Dynamoelectric
Rotary
310 83, 49280, 49139, H02K 710, H02K 706, E05F 1500
Patent
active
06100619&
ABSTRACT:
A drive apparatus, in particular for the automatic actuation of a sliding door of a motor vehicle, comprising a fast running motor, the motor shaft of which is connected to a transmission with a large step-down ratio, the transmission having a first gear wheel which can be secured against rotation, via a releasable blocking device, and a second rotatable gear wheel which is rotationally fixedly connected to an output drive shaft and which is rotatable relative to the first gear wheel by the rotation of the motor when the first gear wheel is blocked, with the number of teeth of the first gear wheel only differing by a few teeth from the number of teeth of the second gear wheel and with the large step-down ratio being determined by this difference of the tooth numbers. By releasing the blocking device, the step-down ratio of the transmission changes. In particular a step-down ratio of 1:1 results. The transmission is thereby capable of being driven in reverse, so that a manual actuation of the sliding door of a motor vehicle is possible, without the requirement for a releasable clutch device between the sliding door and the drive apparatus.
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Buscher Hans-Joachim
Orr Brian Norman
Rogers, Jr. Lloyd Walker
Dinh Le Dang
General Motors Corporation
Marra Kathryn A.
Ramirez Nestor
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