Motor vehicle functional device, has elastic return unit acting directly on displaceable unit for exerting its elastic return function to displace displaceable unit towards safety position when supplied power is lost by power failure

摘要

#CMT# #/CMT# The device has a unit (u1) e.g. clutch, with an elastic return unit (RE) for displacing a displaceable unit (O) e.g. valve gate. A driving motor (1) and a control device (4) of a unit (u2) e.g. actuator, are supplied by a power supply source (5), such that a connection (3) interrupts a coupling between a reducer (2) and the unit (u1) in absence of power supply. The elastic unit acts directly on the displaceable unit for exerting its elastic return function to displace the displaceable unit towards a safety position (p1) if the power supplied by a power supply source is lost by power failure. #CMT#USE : #/CMT# Used in a motor vehicle (claimed). #CMT#ADVANTAGE : #/CMT# The device avoids a need for providing the elastic return units in the unit such as actuator, for ensuring safety function for the displacement unit, thus simplifying the construction of the functional device. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic representation of a functional device. O : Displaceable unit p1, p2 : End course positions RE : Elastic return unit u1, u2 : Function device units 1 : Driving motor 2 : Reducer 3 : Connection 4 : Control device 5 : Power supply source.