Abstract:
A connection wire is connected to a part of a rear door popped up in a door-opening direction by an urging force. A pulley rotates responsive to a driving motor inside a wire-winding device to wind the connection wire thereon. In this manner, the rear door is automatically closed. The pulley is urged in a connection wire-winding direction by a power spring. A clutch is between the pulley and the driving motor. When the rear door is pressed by an operator's hands in a door-closing direction while the rear door is being closed, the pulley is rotated by the power spring, thus winding the connection wire thereon and preventing the connection wire from becoming loose. At this time, the connection between the pulley and the driving motor is cut off by the clutch. Thus, the pulley is rotated by the power spring freely and rapidly. In this manner, the rear door can be closed manually even while it is being closed automatically. Further, the connection wire can be prevented from becoming loose and from being sandwiched between the body of the vehicle and the periphery of a rear opening thereof.
Abstract:
A door operating apparatus for a vehicle back door is comprised of a wire, a winding mechanism, a guide pulley, a tension mechanism and a stopper. The winding mechanism is installed at one of a vehicle body and the back door and is connected to an end of the wire. The winding mechanism winds and releases the wire according to a command signal. The guide pulley is installed at the other one of the vehicle body of the back door with respect to the winding mechanism and supports the wire. The tension mechanism is connected to the other end of the wire and always pulling the wire. The stopper prevents the wire from being sent from the tension mechanism at a predetermined point. Therefore, even if the back door is manually opened and closed, the wire is kept in a tensioned state by means of the tension mechanism to enable smooth opening and closing during manual operations.
Abstract:
An overhead garage door arrangement in which a door leaf is moveable between open and closed position, and is installable against a ceiling for sliding up and down or that can be tilted or swung up and down for compensating against the weight of the door, at least one helical spring module is provided with a least two parallel-loaded helical tension springs that are arranged coaxially one within the other, and that are wound in opposite directions. The inner spring has an outside diameter which is smaller than the inside diameter of the outer spring. The oppositely wound coils of the coaxial springs cross each other. The two springs are pushed over a holding element which has a narrower first section for receiving the inner spring, and having a wider second section spaced from the first section for receiving the outer spring. The first and second sections of the holding element have edges with hook-shaped portions for grasping coils of the coaxial springs.
Abstract:
A powered sliding device for a sliding door comprises a wire drum rotated by a motor, a wire cable connecting the wire drum and the sliding door, a clutch mechanism provided between the wire drum and the motor. The clutch mechanism has a first coupling state for opening the door, a second coupling state for closing the door, and an uncoupling state. The wire drum has a cylindrical shape having a substantially closed end and an opposite open end, and an inner space formed inside thereof. The clutch mechanism is substantially provided within the inner space. The clutch mechanism is displaced into the first coupling state when the motor rotates in a given direction and displaced into the second coupling state when the motor rotates in a direction opposite to the given direction. The clutch mechanism is returned to the uncoupling state from the first coupling state when the motor is rotated in the opposite direction by a predetermined amount, and is returned to the uncoupling state from the second coupling state when the motor is rotated in the given direction by the predetermined amount.
Abstract:
A clutch mechanism of a powered sliding device for a vehicle sliding door comprises a swingable member held at a neutral position by means of resilient force of a return spring, an output gear fixed to an output shaft of a motor, first gears rotatably supported to the swingable member and engaged with the output gear, second gears rotatably supported to the swingable member and brought into contact with the first gears with predetermined frictional resistance, respectively, rack members fixed to the base plate and engaged with the second gears, respectively, a wire drum connected to the sliding door through a wire cable, a drum gear integrally rotated with the wire drum. When the first gears and the second gears are rotated by the motor, the swingable member is rotated due to the engagements of the second gears and the rack members against the resilient force of the return spring so that one of the first gears is engaged with the drum gear. When the motor is not energized, the return spring returns the swingable member to the neutral position.
Abstract:
PROBLEM TO BE SOLVED: To provide an opening/closing driving device for a vehicular door, capable of reducing the size of a drive unit.SOLUTION: A housing 4 has an approximately L-shaped polygonal shape of which at least one apex A has an external angle to be an almost right angle in a front view from the rotation-axis direction of a rotary drum 12. A motor 7 is mounted on the housing 4 so that the axial direction of its armature is perpendicular to one of two sides B, C having apexes A of the housing 4 at the end points.