Motorized reduction gear unit comprising a hollow casing having

Details Motorized reduction gear unit comprising a hollow casing having Motorized reduction gear unit comprising a hollow casing having

1995-06-05

1997-04-22

Marmor, Charles A.

Machine element or mechanism

Mechanical movements

Rotary to or from reciprocating or oscillating

74 32, 74606R, 152503, F16H 2140, B60S 124

Patent

active

056220774

ABSTRACT:
A motorized reduction gear unit for any purpose having a crank and connecting rod mechanism incorporated in it, but especially for use as a vehicle screen wiper drive unit, comprises a hollow casing having a cover plate, with, within the hollow interior of the casing, a toothed wheel which is rotatable about an axis. The toothed wheel carries a gudgeon pin parallel to the axis of rotation of the toothed wheel but eccentric with respect to the latter. The pin drives a crank and connecting rod system in which the crank and connecting rod are articulated together about a pivot pin, so that continuous rotary motion of the toothed wheel is converted thereby into alternating rotary motion of an output shaft. The cover plate has on its inner face, facing towards the casing, an engagement surface for abutting engagement with the end of the crank in the region of the pivot pin.

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patent: 5203219 (1993-04-01), Blanchet
patent: 5453649 (1995-09-01), Blanchet

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