Drive device for vehicular slide doors
AssigneeAisin Seiki Kabushiki Kaisha
InventorsRyoichi Fukumoto, Katsuhisa Yamada, Masao Ohhashi, Shintaro Suzuki
Life of this patent
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Abstract
A vehicular slide door apparatus includes a slide door which is movable between an open position and a closed position, and a drive device having a shaft which couples the slide door and an electric motor. When the motor is turned on, the slide door moves. The shaft is provided with a magnetic member which is sensed while the shaft is rotating by a sensor having a Hall element. This allows a direct determination of the shaft rotation so that such determination and successive determinations of the slide door movement become as accurate and precise as possible.
Claims14
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.
A drive device for a vehicular slide door comprising:
- a rotatable shaft journalled in a casing and coupled to an electric driving source by way of a clutch mechanism for receiving a rotational force;
- an output member mounted on the shaft for rotation together with the shaft;
- a cable connectable to the slide door and engaged by the output member;
- a magnetic member operatively associated with the shaft so that rotation of the shaft causes rotation of the magnetic member;
- a Hall element mounted in opposing relation to the magnetic member to sense rotation of the shaft;
- the clutch mechanism including a rotor mounted on the shaft and a movable plate, the magnetic member being secured to the rotor;
- and
- the movable plate being mounted on the shaft and rotatable relative to the shaft.
A vehicular slide door apparatus comprising:
- a slide door mounted on a lateral side of a vehicle body for movement in a lengthwise direction of the vehicle body between an open position and a closed position;
- a connecting cable connected to the slide door to move with the slide door;
- a rotatable shaft journalled in a casing and coupled to an electric driving source by way of a clutch mechanism for receiving a rotational force;
- an output member mounted on the shaft for rotation together with the shaft, said connecting cable being engaged by the output member so that rotation of said output member causes movement of said connecting cable;
- a magnetic member operatively associated with the shaft so that rotation of the shaft causes rotation of the magnetic member;
- a sensor mounted in opposing relation to the magnetic member to sense rotation of the shaft based on rotating movement of the magnetic member;
- the clutch mechanism including a rotor accommodated in the casing and mounted on the shaft to rotate together with the shaft and a movable plate accommodated in the casing, the movable plate being mounted on the shaft and rotatable relative to the shaft.
Dependencies are inferred from the claim text.