Robert Boschgmbh

Ulrich Rettmar

Christian Meyer

Gerd Walter

Peter Klobes

Recep Tarhan

Stefan Demont

Herbert Schiller

Uwe Velte

Ewald Becker

Michael Bohnert

Markus Boldt

Herbert Martin

A blocking device, and a gear-drive unit containing such a blocking device, and a method for producing such a gear-drive unit for blocking a rotary motion of a shaft relative to a housing of the gear-drive unit, having a first, rotatable blocking element and a second blocking element which is displaceable relative to the first blocking element by means of at least one electromagnet and at least one restoring element, in which the blocking elements in the blocked state mesh in the axial direction with one another by form-locking, and the blocking device is embodied as a separate, independent structural unit, which can be mounted as a unit on the one hand onto the housing and on the other onto the shaft.

Blocking device, gear-drive unit containing such a blocking device, and method for producing such a gear-drive unit

A blocking device, and a gear-drive unit containing such a blocking device, and a method for producing such a gear-drive unit for blocking a rotary motion of a shaft () relative to a housing () of the gear-drive unit (), having a first, rotatable blocking element () and a second blocking element () which is displaceable relative to the first blocking element () by means of at least one electromagnet () and at least one restoring element (), in which the blocking elements () in the blocked state mesh in the axial direction with one another by form-locking, and the blocking device () is embodied as a separate, independent structural unit (), which can be mounted as a unit () on the one hand onto the housing () and on the other onto the shaft ().

Blocking apparatus, as well as a gearbox drive unit containing such a blocking apparatus, as well as a method for production of a gearbox drive unit such as this for blocking any rotary movement of a shaft () with respect to a housing () of a gearbox drive unit (), having a first blocking element () and having a second blocking element () which can be moved axially with respect to the first blocking element () by means of an electromagnet () and at least one return element (), in order to produce a connection between the first blocking element () and the second blocking element () such that they cannot rotate with respect to one another, with the electromagnet () having an inner pole () which is surrounded by an electrical coil (), and with the inner pole () having an axial projection () which engages in a corresponding opening () in the second blocking element (), for axial guidance and centering.

Lock device, transmission/drive unit containing such a lock device, and method for manufacturing such a transmission/drive unit

Blocking apparatus, as well as a gearbox drive unit containing such a blocking apparatus, as well as a method for production of a gearbox drive unit such as this for blocking any rotary movement of a shaft () with respect to a housing () of the gearbox drive unit (), having a first blocking element () which can rotate and having a second blocking element () which can be moved with respect to the first blocking element () by means of at least one electromagnet () and at least one return element (), with the blocking elements () engaging with one another in an interlocking form in the axial direction in the blocked state, and with at least one acoustic damping element () being arranged axially between the interlock () and the electromagnet ().

The invention relates to a spring element ( ) for compensating for axial play in a motor shaft of an electric motor. The invention proposes embodying such a spring element ( ) out of plastic and of one piece with a stop disk ( ), which is connected via spring arms ( ) to a support foot ( ), and placing it, along with the support foot ( ), onto a support sleeve ( ) with which the spring element ( ) can be press-fitted onto the motor shaft. The invention has the advantage that it eliminates the axial play in the motor shaft of an electric motor with a spring element ( ) that is inexpensive to manufacture and easy to install (FIG. ).

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Buehlertal, Germany

Ulrich Rettmar