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US 7,746,200 B2Granted
Drive device with an input shaft and an output shaft particularly for driving a contact piece of an electrical switching device
AssigneeSiemens Aktiengesellschaft
InventorsManfred Meinherz, Jörg Tietze
Life of this patent
Estimating the term…
Abstract
A drive device has a rotatable driving shaft and a driven shaft. The driving shaft, or input shaft, and the driven shaft, or output shaft, are joined to each other by way of a magnetic coupling. The driven shaft can be blocked in a direction of rotation such that magnetic forces emanating from the magnetic coupling cause the driven shaft to move in a direction opposite that of the direction of blocking. The driven shaft moves in a springing manner.
Claims11
A drive device, comprising:
- a rotatable input shaft and a rotatable output shaft;
- a blocking lever connected with said output shaft;
- a magnetic coupling connecting said input shaft and said output shaft, enabling a reversal in direction of rotation between said input shaft and said output shaft;
- a first blocking device disposed only to limit a rotatability of said output shaft in a first direction of rotation by obstructing movement of said blocking lever, said first blocking device being operational, and as a function of magnetic forces emanating from said magnetic coupling, to cause said output shaft to rotate in a second direction of rotation opposite to the first direction of rotation;
- a second blocking device being disposed to cause a reversal of a movement of said output shaft from the second direction of rotation to the first direction of rotation;
- and said output shaft having only rotational movement in the first and second directions.
3 more elements
A drive device, comprising:
- a rotatable input shaft and a rotatable output shaft;
- a blocking lever connected with said output shaft;
- a magnetic coupling connecting said input shaft and said output shaft, said magnetic coupling having at least two magnet pairs and enabling only a reversal in direction of rotation between said input shaft and said output shaft;
- a first blocking device being in releasable blocking contact with said blocking lever only to limit a rotatability of said output shaft in a first direction of rotation, said first blocking device being operational, and as a function of magnetic forces emanating from said magnetic coupling, to disengage said blocking lever to cause said output shaft to rotate in a second direction of rotation opposite to the first direction of rotation and being non-operational to provide blocking contact during the second direction of rotation;
- a second blocking device being disposed for causing a reversal of a movement of said output shaft from the second direction of rotation to the first direction of rotation;
- and said output shaft having only rotational movement in the first and second directions.
3 more elements
Dependencies are inferred from the claim text.