Patent ID: 6408573
Filing Date: 2002-06-25
Classification: E05F,E05Y,H02K

Abstract:
A drive device for a vehicular slide door comprising:a shaft journaled in a casing and coupled to an electric driving source by way of a clutch mechanism for receiving a force to move the slide door; an output gear mounted on the shaft for rotation together with the shaft; a rotor accommodated in the casing and rotated together with the shaft; a movable plate accommodated in the casing, rotatable relative to the shaft and adapted to be coupled to the rotor in a detachable manner; an armature secured to the movable plate; an electric coil winding device secured to the casing in opposition to the armature via the rotor and cooperating with the armature and the rotor to constitute a magnetic closed loop which attracts the armature toward the rotor to thereby couple the movable plate and the rotor; a magnetic member secured to the rotor at a position outside the magnetic closed loop; and a sensor secured to the casing and provided with a Hall element for detecting rotation of the rotor.