Actuating drive for motor vehicle applications
AssigneeKiekert AG
InventorsChristian Sturm, Claus Töpfer
Life of this patent
Estimating the term…
Abstract
An actuating drive for motor vehicle applications, in particular for a motor vehicle lock comprising an actuating drive, for realizing different functional positions, includes an electromagnetic rotary actuator with a rotor and a stator, in particular a coil carrier, a drive lever, wherein the drive lever can be moved to different functional positions by the rotary actuator, and means for latching the drive lever in the functional position, wherein the drive lever interacts with a switching lever in such a way that, after a functional position of the drive lever is reached, a moment which stabilizes the functional position can be introduced into the drive lever by the switching lever.
Claims16
An actuating drive for a motor vehicle, the actuating drive comprising:
- an electromagnetic rotary actuator having a rotor;
- a drive lever movable between a first end position and a second position by the rotary actuator;
- and
- a switching lever, wherein, after the first end position of the drive lever is reached, the switching lever causes a moment on the drive lever which stabilizes the drive lever in the first end position,
- wherein the drive lever is accommodated to be pivotable about a first axis, the first axis being an only rotational axis for the drive lever,
- wherein the switching lever is mounted pivotably about a second axis and is configured for latching of the drive lever when in the end position,
- wherein the drive lever has a guide cam,
- wherein the switching lever has a guide contour in which the guide cam is engageable,
- wherein the drive lever directly contacts a first stop when in the first end position;
- wherein the switching lever is positioned relative to the drive lever such that when the drive lever is in the first end position, the moment includes a first force component which acts in a direction toward the rotor, and a second force component which acts in a direction toward the first stop that stabiltizes the drive lever in the first end position, and the first force component is greater than the second force component;
- and
- wherein the switching lever interacts with a spring element, and the spring element is used to exert the moment onto the drive lever wherein the switching lever is engageable with a clutch lever, and further comprising an operating lever that is engageable with the clutch lever.
An actuating drive for a motor vehicle, the actuating drive comprising:
- an electromagnetic rotary actuator having a rotor;
- a drive lever movable between a first end position and a second position by the rotary actuator;
- and
- a switching lever, wherein, after the first end position of the drive lever is reached, the switching lever causes a moment on the drive lever which stabilizes the drive lever in the first end position,
- wherein the drive lever is accommodated to be pivotable about a first axis, the first axis being an only rotational axis for the drive lever,
- wherein the switching lever is mounted pivotably about a second axis and is configured for latching of the drive lever when in the end position,
- wherein the drive lever has a guide cam,
- wherein the switching lever has a guide contour in which the guide cam is engageable,
- wherein the drive lever directly contacts a first stop when in the first end position;
- wherein the switching lever is positioned relative to the drive lever such that when the drive lever is in the first end position, the moment includes a first force component which acts in a direction toward the rotor, and a second force component which acts in a direction toward the first stop that stabiltizes the drive lever in the first end position, and the first force component is greater than the second force component;
- and
- wherein the switching lever is engageable with a clutch lever, and further comprising an operating lever that is engageable with the clutch lever.
Dependencies are inferred from the claim text.