Abstract:
A opening control apparatus for a sliding door of a vehicle, includes a driving source, a clutch arranged to connect the driving source and the sliding door in an engaged state and to disconnect the driving source and the sliding door in a disengaged state, and a control section. The control section brings the clutch from the disengaged state to the engaged state when a measured distance of movement of the sliding door from a stop position to a position in one of an opening direction and a closing direction reaches a first predetermined distance and then a measured distance of movement of the sliding door from the position in the one of the opening and closing directions reaches a second predetermined distance, and drives the sliding door to move in the one of the opening and closing directions by the driving source.
Abstract:
A drive mechanism includes an electric motor, a rotor driven by the electric motor, and a worm screw driven by the rotor. The drive mechanism further includes a wheel driven by the worm screw, the wheel transmitting movement of the electric motor to a vehicle closure, and a clutch on the rotor connecting the worm screw to the electric motor or disconnecting the worm screw from the electric motor.
Abstract:
An operating mechanism for an open/close object comprising a driving device for driving and opening the open/close object, a position detecting device for detecting an open position of the open/close object (1), and a fully open position storage device for storing a fully open position of the open/close object, wherein, when the driving device drives and opens the open/close object, the driving device is stopped in a fully open recognition position stored in the fully open position storage device or a position a fixed amount short of the fully open recognition position. When a current position of the open/close object after completion of the opening drive by the driving device is different from the fully open recognition position (#1), the fully open position storage device sets a new fully open recognition position (#2).
Abstract:
A door actuating system has a fractional horsepower motor mounted on the door adjacent its free edge, driving a clutch connected to a duplex capstan pulley that is wrapped by two tensioned flexible static lines, for opening/closing movement ‘along the line’. The motor also drives a gear that engages a rack projecting from the door frame, to displace the door relative to its frame. Rotation of the gear is read by a rotary encoder, which feeds a microprocessor, to continuously monitor the location, speed and direction of motion of the door, for both the ‘on’ and the ‘off’ condition of the electric motor. A latching clip over-rides action of the original door latch.
Abstract:
Under a method to control a sliding speed in accordance with this invention, the motor is initially accelerated for a predetermined reference speed, and then during the initial acceleration period, if a rotational speed of the wire drum is of and above a given value, a difference between a rotational speed of the wire drum and a rotational speed of the motor is of and above a given value, and a rate of acceleration of the wire drum is of and above a given value, the rotational speed of the motor is reduced temporarily judging the slide door is in a state of abnormal acceleration, and then the motor is accelerated again at a lower rate than the initial acceleration toward the reference speed.
Abstract:
A clutch mechanism of the present power device comprises a fixed gear member, a moving gear member engaged with the fixed gear member when moving to a clutch connecting position, an armature for moving the moving gear member to the clutch connecting position when rotated relatively to the moving gear member, an electromagnetic coil unit for applying a brake resistance to the armature, and a clutch holding surface for abutting against the moving gear member when the electromagnetic coil unit is turned off in the clutch connecting state and for holding the moving gear member at a brake-clutch connecting position. The abutment of the moving gear member against the clutch holding surface is released by rotating the moving gear member relatively to the armature in a state in which the electromagnetic coil unit is operated.
Abstract:
An anti-pinch system of a vehicle closure includes a detection system for detecting pinching and a clutch to disconnect the vehicle closure from a closure driving mechanism following detection of pinching by the detection system. The closure drive mechanism can be disengaged to prevent an increase in pinching during the time required to reverse the movement of the closure driving mechanism.
Abstract:
A fire door control system permits user input during regular use and during alarm conditions. The system utilizes primary and secondary power sources and incorporates a variety of preventive safeguards assuring that functionality of the fire door control system will not be lost. The system utilizes primary power when possible in all alarm conditions. However, during alarm conditions when primary power is lost or when a hand crank hoist remains dangerously engaged, the system is bumplessly connected to a secondary power source and a fire door of the system is closed with the aid of a clutch that directly connects the drive input with an axle that supports the fire door. The clutch pulses on and off to control the descent of the door. The system includes an electronic controller for coordinating the operation of elements of the system and for implementing a method of controlling a fire door system.
Abstract:
A closing unit for a flap of a motor vehicle includes at least two hinges which can pivot about a pivot axis between an open position and a closed position; a single drive including a motor, a clutch, and a gear mechanism; and at least two transmission elements extending between the single drive and respective the hinges for pivoting the hinges.
Abstract:
A half-open position holding apparatus for a vehicle opening and closing member includes an opening and closing member supported in a vehicle body to be openable and closable and has an opening and closing member driving unit that has a motor and a electromagnetic clutch that can put a power transmission path connecting the motor and the opening and closing member in a connected state and in a disconnected state, for driving the opening and closing member in opening and closing directions thereof, and an in-vehicle battery serving as a power source for the electromagnetic clutch. The apparatus includes a controller for controlling the opening and closing member driving unit, that, when the opening and closing member is held at a half-open position between a fully-closed position and a fully-opened position, holds the opening and closing member at the half-open position by stopping the motor, putting the electromagnetic clutch in a connected state, and controlling the electromagnetic clutch to a half-open position holding connection state such that a voltage applied to the electromagnetic clutch becomes a predetermined voltage lower than an output voltage of the in-vehicle battery.