Actuator for a functional unit of a motor vehicle
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United States of America Patent
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-
Dec 12, 2017
Grant Date -
Jul 2, 2015
app pub date -
Mar 16, 2015
filing date -
Sep 14, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An actuator for a motor vehicle functional unit includes a force transmission unit transmitting an actuating force to an actuating member and being displaced by a measuring travel in a force transmission direction. A force measurement device detects an actual value of the actuating force and includes a spring acting in the force transmission direction, having resilient action counter to which the force transmission unit is displaced and being tensioned by the actuating force over a resilient excursion, a micro switch having smaller switching travel than the measuring travel and being actuated upon displacement of the force transmission unit if the actuating force reaches the actual value, and a stop element for actuating the switch. The switch or element are coupled to or fixed relative to the force transmission unit and the switch and/or element are resiliently supported to compensate for a difference between the switching and measuring travels.
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