Back to results
US 6,441,536 B2Granted
Wobble motor
AssigneeSiemens Aktiengesellschaft
InventorsBernhard Fischer, Andreas Kappel, Enrico Ulivieri, Bernhard Gottlieb, Randolf Mock
Life of this patent
Estimating the term…
Abstract
A wobble motor has at least one shaft guided in a rotatably and axially displaceable fashion, and at least one drive ring which surrounds the shaft and can be tilted with respect to a longitudinal axis of the shaft. The at least one guide ring can be displaced in a frictionally locked fashion and free from rotation.
Claims20
A wobble motor, comprising:
- at least one shaft guided in a rotatably and axially displaceable fashion and having a longitudinal axis;
- at least one drive ring surrounding said shaft and tilted with respect to said longitudinal axis of said shaft, said at least one drive ring displaced about said shaft in a frictionally locked fashion and free from rotation, said at least one drive ring having a base and a curved surface;
- a tilting unit having at least two actuators connected to said base of said at least one drive ring for tilting said at least one drive ring with respect to the shaft;
- and
- a rotational unit having at least two actuators connected to said curved surface of said at least one drive ring.
2 more elements
A wobble motor, comprising:
- at least one shaft guided in a rotatably and axially displaceable fashion and having a longitudinal axis;
- and
- at least one first drive ring surrounding said shaft and tilted with respect to said longitudinal axis of said shaft, said at least one first drive ring displaced about said shaft in a frictionally locked fashion and free from rotation;
- at least one second drive ring disposed parallel to said at least one first drive ring;
- and
- a tilting device supporting said at least one first drive ring and said at least one second drive ring against one another.
3 more elements
A method for driving a shaft, which comprises the steps of:
- displacing at least one drive ring in an at least partially periodic movement about the shaft in a frictionally locked fashion free from rotation by using a rotational unit having at least two actuators connected to a curved surface of the drive ring;
- and
- tilting the at least one drive ring with respect to a longitudinal axis of the shaft by using a tilting unit having at least two actuators connected to a base of the drive ring.
Dependencies are inferred from the claim text.