| 摘要 |
<p>#CMT# #/CMT# The device has a fixation element connected to a fixed or mobile piece. A tubular enclosure (1) axially moves with respect to the fixation element. A screw drive transmission includes a screw nut (9) that is arranged on a threaded screw (8). The transmission drives in axial displacement the element and enclosure with respect to each other and is rotatably driven by an electric motor (21) e.g. direct current motor, whose motor shaft drives the screw or a coupling part (6). The transmission is driven with a reduced torque, during a movement of axial spacing of the element and enclosure. #CMT#USE : #/CMT# Device for driving a shutter or flap of a motor vehicle. #CMT#ADVANTAGE : #/CMT# The transmission is driven by the electric motor with the reduced torque, during the movement of axial spacing of the element and enclosure, thus producing high torque in a high torque request phase required at the beginning of the displacement of the transmission. The configuration of the device reduces encumbrance and enables easy assembling of the device. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a sectional view of a driving device. 1 : Tubular enclosure 6 : Coupling part 8 : Threaded screw 9 : Screw nut 21 : Electric motor.</p> |
