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AssigneeBrose Fahrzeugteile GmbH & Co. KG, Coburg
InventorsGeorg Scheck, Frieder Krüger, Marcus Klopp, Stephanie Angermüller, Matthias Weiss
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The invention relates to a bidirectional drive for rotating in the one or the other direction of drive a drive wheel which is linked with an adjusting device. The bidirectional drive includes a drive lever which can be rotated about a drive axis, starting from an initial position, in the one or the other direction. The lever is linked with a coupling element for expanding a spring element that is at least partially supported by the cylindrical drive surface of the drive wheel and that entrains the drive wheel in the peripheral direction when the drive lever is moved away from the initial position, while the spring element is no longer supported by the cylindrical drive surface of the drive wheel and the drive wheel is not entrained when the drive lever is returned to the initial position. The coupling element includes expansion cams that can be tilted about an axis spaced apart from the drive axis. The expansion cams expand the actuation lever which is linked with the spring element in such a manner that the spring element which is supported by the cylindrical drive surface of the drive wheel is expanded.
A bidirectional drive for rotating a drive wheel connected to an adjusting device into one or other drive direction with a drive lever that swivels about a drive axis starting from a neutral position into one or other direction and which is connected to a coupling element for expanding a spring element which is supported at least in part on a cylindrical drive face of the drive wheel and entrains the drive wheel in a circumferential direction by forming a contact bearing against the cylindrical drive face when the drive lever is moved away from the neutral position whilst with a return of the drive lever into the neutral position the contact bearing of the spring element against the cylindrical drive face of the drive wheel is lifted and the drive wheel is not entrained, wherein the coupling element includes expansion cams which are mounted at different radial distances from the drive axis and which are able to tilt about an axis spaced from the drive axis and which expand actuation levers connected to the spring element so that the spring element bearing against the cylindrical drive face of the drive wheel is widened out.
A bidirectional drive for rotating a drive wheel connected to an adjusting device into one or other drive direction with a drive lever that swivels about a drive axis starting from a neutral position into one or other direction and which is connected to a coupling element for expanding a spring element which is supported at least in part on a cylindrical drive face of the drive wheel and entrains the drive wheel in a circumferential direction by forming a contact bearing against the cylindrical drive face when the drive lever is moved away from the neutral position whilst with a return of the drive lever into the neutral position the contact bearing of the spring element against the cylindrical drive face of the drive wheel is lifted and the drive wheel is not entrained, wherein the coupling element includes expansion cams which are able to tilt about an axis spaced from the drive axis and which expand actuation levers connected to the spring element so that the spring element bearing against the cylindrical drive face of the drive wheel is widened out, wherein the spring element comprises a spring strip whose ends are aligned parallel to each other and are inserted into sockets of the actuation levers.
A bidirectional drive for rotating a drive wheel connected to an adjusting device into one or other drive direction with a drive lever that swivels about a drive axis starting from a neutral position into one or other direction and which is connected to a coupling element for expanding a spring element which is supported at least in part on a cylindrical drive face of the drive wheel and entrains the drive wheel in a circumferential direction by forming a contact bearing against the cylindrical drive face when the drive lever is moved away from the neutral position whilst with a return of the drive lever into the neutral position the contact bearing of the spring element against the cylindrical drive face of the drive wheel is lifted and the drive wheel is not entrained, wherein the coupling element includes expansion cams which are able to tilt about an axis spaced from the drive axis and which expand actuation levers connected to the spring element so that the spring element bearing against the cylindrical drive face of the drive wheel is widened out, wherein the drive lever is attached to the drive axis by an oblong hole.
Dependencies are inferred from the claim text.