Drive device for a windscreen wiper
AssigneeITT Manufacturing Enterprises, Inc.
InventorsRolf Ade, Hubert Scheele, Bernd Walther, Martin Csermak
Life of this patent
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Abstract
In a drive mechanism for a windshield wiper, a switch disk for realizing a park position switch is supported so as to be independently rotatable relative to an output gear of a gear unit. The output gear and the switch disk are coupled with each other via a coupling device, with the coupling device acting as an engaging device carrying the switch disk along, in one direction of rotation only. In order to lower an axial dimension of the gear unit, the disk is rotatably supported on a sleeve, through which an output shaft extends so that the end of the shaft can support itself directly on a housing lid.
Claims7
A drive mechanism for a windshield wiper, comprising:
- a drive shaft and a driving gear, which are arranged in a housing closed by a lid,
- a drive-shaft-actuatable switch device for a park position switch, which is provided with rotatably supported first contacts movable by means of the drive shaft in such a way that the first contacts are carried along upon a rotation of the drive shaft in one direction and the first contacts are not carried alone when the drive shaft rotates in another direction, and with second contacts arranged fixedly with the housing, wherein the housing lid includes a supporting sleeve for supporting the rotatably supported first contacts and wherein the drive shaft extends into the supporting sleeve.
Dependencies are inferred from the claim text.