Abstract:
A power drive assembly moves a liftgate (12) of a motor vehicle (10) between its open and closed positions. The motor vehicle (10) defines an opening and the liftgate (12) closes the opening when the liftgate (12) is in its closed position. The power drive assembly (22) includes a base (24) that is fixedly secured to the motor vehicle (10) at a position in spaced relation to the opening. A drive mechanism (38) is fixedly secured to the guide. The drive mechanism (38) converts electrical energy into a linear force. The power drive assembly (22) includes a translation linkage (58) connected to the drive mechanism (38) for receiving the linear force and translating it into a nonlinear force to move the liftgate (12) between the open position and the closed position. A nut (52), secured to the translation linkage (58), moves the translation linkage (58) as it travels along a lead screw (50) that is rotated by a motor (40).
Abstract:
A power drive mechanism (10) for a motor vehicle liftgate includes a linking arm (18) pivotally connected with the liftgate, a crank arm (12) drivable for pivotal movement and connected with the linking arm (18), and a gear train (20) operatively engaging the crank arm (12). A drive motor (34) is operatively connected with the crank arm (12) through the gear train (20) to provide power assisted opening and closing of the liftgate. The gear train (20) is disengagable from the drive motor (34) to permit manual opening and closing of the liftgate without backdriving the drive motor (34). An actuator (74) is operatively connected with the gear train (20) to move the gear train into and out of engagement with the drive motor. A holding linkage (60, 62) is operatively associated with the gear train (20) to maintain the gear train (20) in engagement during power assisted opening and closing of the liftgate.
Abstract:
A cable drive unit for opening and closing a sliding door on a vehicle (not shown) has a cup-shaped front drum having a helical front cable groove and a rear cup-shaped drum having a helical rear cable groove. The front drum is rotated about a longitudinal axis in a first direction to open the sliding door. The rear drum is partially nested in the front drum and rotated about the longitudinal axis in an opposite direction to close the sliding door. The front drum and the rear drum are drivingly connected to each other via a tension spring that biases the front drum and the rear drum in opposite directions when in tension. The front and rear drums are rotated by a concentric clutch that is nested in the rear drum. The clutch includes a drive member that is drivingly connected to the front drum via a first lost motion connection and drivingly connected to the rear drum via a second lost motion connection. The first drum has an arcuate slot forming part of the first lost motion connection, the rear drum has an arcuate slot forming part of the second lost motion connection, and the drive member has a tab that projects through both arcuate slots to form part of the first lost motion connection and part of the second lost motion connection.
Abstract:
The invention relates to a device for automatically actuating a vehicle door (1), in particular a side door or a tailgate of the motor vehicle. Said device comprises a control device (12) and a drive (4;4null) that consists of a motor (5) with a gearing (6) connected downstream and at least one transmission element (8;20) located between the gearing (6) and the vehicle door (1). The aim of the invention is to facilitate the manual actuation of an automatically actuated vehicle door (1) that is in an open position. To achieve this, a load sensor (10) is mounted on the drive (4). When a predetermined load on the open vehicle door (1) has been reached, said sensor generates a control signal, which is fed to the control device (12) for activating the motor (5), or for decoupling a coupling (18) that is located between the gearing (6) and the transmission element (8;20), the load on the open vehicle door (1) being produced e.g. by a corresponding manual pressure on said vehicle door (1).
Abstract:
A rack includes a closed position teeth portion meshed with a teeth portion of an output gear when the rack is disposed at a closed position corresponding to a closed position of an opening and closing member and an opened position teeth portion meshed with the teeth portion of the output gear when the rack is disposed at an opened position corresponding to an opened position of the opening and closing member and a clearance between faces of teeth of the closed position teeth portion and the teeth portion of the output gear is made larger than a clearance between faces of teeth of the opened position teeth portion and the teeth portion of the output gear.
Abstract:
The invention relates to a method for the automatic operation of a vehicle door (1), in particular a side door, or a rear hatch of a motor vehicle, from a first to a second position, by means of a drive (5; 26), connected to a controller (6), which acts on the vehicle door (1), by means of at last one transfer element (12; 30). The invention further relates to a device for carrying out said method. According to the invention, an automatically operated vehicle door (1) in the first position thereof, may be simply swung into the second position thereof at the same speed, even with differing street inclinations where the vehicle is standing, whereby, after activating the drive (5), the speed of the relevant vehicle door (1) is measured within a given angular range and compared with a set value curve. So long as the measured actual value for speed of the vehicle differs from the given set value curve, the speed of the door is changed until the speed as given by the set value curve is achieved.
Abstract:
A cable drive assembly for opening and closing a sliding vehicle door has first and second drums that are drivingly connected to each other via a tension spring that biases the drums in opposite directions. The drums include a catch that holds the first and second drums in a cocked condition where the spring is tensioned to provide slack in a closed loop cable to facilitate inserting a traveler attached to the cable into a track. The cocked drums are manually rotated in a drum housing in one direction on to move the traveler and insert it into the track. After the traveler is inserted, the cocked drums are manually rotated in the opposite direction. This releases the catch so that the tensioned spring takes up the slack in the closed loop cable.
Abstract:
A vehicular slide door apparatus includes a movable slide door, inside and outside door handles operable to initiate opening and closing movement of the door, a drive device that assists the slide door movement, and a remote control device that includes a door lock device and a switch. An open lever is operatively associated with the inside door handle to transmit operation of the inside door handle to the lock device, and a child-proof lever is operable to prevent operation of the inside door handle from being transmitted to the open lever. The switch is engageable by the open lever and is operatively associated with the drive device such that operation of the inside door handle produces selective actuation and non-actuation of the switch depending upon the position of the child-proof lever, with the actuation of the switch effecting driving operation of the drive device.
Abstract:
A controlled counter-balance actuator opens and closes a lift-gate of a sport utility vehicle. The controlled counter-balance actuator includes a drive unit at each side of the lift-gate having a rotor that is pivotally secured to a body of the vehicle in a fixed position and a gas spring. The gas spring is pivotally secured to the rotor at one end and pivotally secured to the lift-gate at the opposite end. The rotor is indexed angularly by an electric motor so as to rotate from a home position to an open position in one direction or to a close position in an opposite direction. The rotor and the gas spring hold the lift-gate in an open position or a close position when the rotor is in the home position, move an open lift-gate toward the closed position when the rotor is indexed from the home position to the close position, and move a closed the lift-gate toward an open position when the rotor is indexed from the home position to the open position.
Abstract:
A power liftgate drive assembly moves a liftgate of a motor vehicle between an open position and a closed position. The power liftgate assembly is aligned along the side of the motor vehicle. A liftgate rod extends in a generally vertical orientation between the power liftgate drive assembly and the liftgate. The assembly includes a base that is fixedly secured to the motor vehicle near a load floor. A guide extends upwardly from the base. The guide extends along the side of the motor vehicle and is disposed adjacent the liftgate when the liftgate is in the closed position. A liftgate carriage is connected to the guide. The liftgate carriage slides along the guide. The liftgate rod is pivotally connected between the liftgate carriage and the liftgate. The liftgate rod translates the linear movement of the liftgate carriage into the pivotal movement of the liftgate to move the liftgate between the open and closed positions