Transmission element and actuating drive with a return spring and with a self-unlocking gear lock
AssigneeSiemens Schweiz AG
InventorsFlorian Erich Böttger, Andreas Pally
Life of this patent
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Abstract
Various embodiments include a transmission element for a spring return of an actuating drive comprising: a toothed wheel element with teeth at least in sections; and a locking element including a locking section for locking engagement in the teeth of the toothed wheel element to prevent a rotation of the toothed wheel element in a return direction. The locking element includes a safety element mechanically operatively connected to the locking section and elastically deformable in order to release the locking of the toothed wheel element by elastic deformation of the safety element at a torque of the toothed wheel element in the return direction greater than a safety torque limit.
Claims10
A transmission element for a spring return of an actuating drive, the transmission element comprising:
- a toothed wheel element with teeth at least in sections;
- and
- a locking element including a locking section for locking engagement in the teeth of the toothed wheel element to prevent a rotation of the toothed wheel element in a return direction;
- wherein the locking element includes a safety element mechanically operatively connected to the locking section and elastically deformable in order to release the locking of the toothed wheel element by elastic deformation of the safety element at a torque of the toothed wheel element in the return direction greater than a safety torque limit.
An actuating drive comprising:
- a drive element;
- an output connection;
- a return spring element;
- and
- a transmission element;
- wherein the drive element is mechanically connected by the transmission element to the output connection to drive the output connection in a drive direction;
- the return spring element is mechanically connected to at least one of:
- the drive element, the transmission element, and the output connection to provide return functionality;
- and
- the transmission element comprises:
- a toothed wheel element with teeth at least in sections;
- and
- a locking element including a locking section for locking engagement in the teeth of the toothed wheel element to prevent a rotation of the toothed wheel element in a return direction;
- wherein the locking element includes a safety element mechanically operatively connected to the locking section and elastically deformable in order to release the locking of the toothed wheel element by elastic deformation of the safety element at a torque of the toothed wheel element in the return direction greater than a safety torque limit.
Dependencies are inferred from the claim text.