Fail-safe drive and actuating drive with a fail-safe drive
AssigneeAUMA Riester GmbH & Co. KG
InventorsMatthias Tritschler, Peter Malus, Lutz Stöcklin, Guido Koch
Life of this patent
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Abstract
A fail-safe drive (1) for an actuating drive is provided, which has a cam disc (8), at least one restoring element, a counter-element (5) and an output shaft (3), with the cam disc (8) and the counter-element (5) being configured for joint conversion of an axial movement of the restoring element along the output shaft (3) into a rotational movement of the output shaft (3). The cam disc (8) has a control cam (10), the profile of which is adapted to a spring characteristic curve of the restoring element such that, in the case of activation of the failsafe drive (1), a constant output movement and/or a constant output torque can be generated.
Claims22
A failsafe drive (1) for an actuating drive, the failsafe drive (1) comprising:
- a cam disc (8),
- a restoring element,
- a counter-element (5), and
- an output shaft (3),
- the cam disc (8) and the counter-element (5) being configured for joint conversion of an axial movement of the restoring element along the output shaft (3) into a rotational movement of the output shaft (3),
- the cam disc (8) has at least one control cam (10), a profile of which is adapted to a spring characteristic curve of the restoring element such that, upon each activation of the failsafe drive (1), at least one of a constant output movement or a constant output torque is adapted to be generated.
Dependencies are inferred from the claim text.