Abstract:
An electromechanical strut using an inline motor coupled to an inline planetary gear that are both mounted in the lower housing. The motor-gear assembly drives a worm gear and nut screw in the upper housing, extending or retracting an extensible shaft. Additionally, a power spring mounted coaxially around the worm gear provides a mechanical counterbalance to the weight of a lift gate on the shaft. As the shaft extends, the power spring uncoils, assisting the motor-gear assembly in raising the lift gate. Retracting the shaft recoils the spring, storing potential energy. Thus, a lower torque motor-gear assembly can be used, reducing the diameter of the lower housing. Preferably, the power spring can also drive the power screw to extend the strut even when the motor-gear assembly is not engaged.
Abstract:
A locking arrangement for a door system of a transit vehicle includes a combination of a lock mechanism and an electromagnetic brake. The lock mechanism enables positive locking of at least one door but does not require substantial contact between moving and stationary lock elements. The lock mechanism is connected with the manual release means for door opening during an emergency. The electromagnetic brake maintains door seal compression in the closed and locked condition which improves sealing capabilities and provides for reliable lock mechanism operation. Such combination provides locking redundancy and meets various requirements regarding annunciation and manual release operation.
Abstract:
A closure assembly for a motor vehicle includes a closure member, a guide track and a carrier operably secured to the guide track for movement along the guide track and carrying the closure member therewith. A rack has a plurality of teeth and extends along the guide track. A pinion gear is carried by the carrier and has teeth engaging the rack. A motor is operably connected to the pinion gear to selectively move the closure member from one position to another. The carrier includes at least one engagement member biased into engagement with the guide track to prevent binding of the carrier with the guide track and to maintain contact between the pinion gear and the rack.
Abstract:
A drive for pivoting a flap arranged on a vehicle body about a pivot axis includes a non-self locking electric motor and a drive train connecting the motor to the flap. The motor can be switched between a driving active state and a non-driving inactive state, the motor being moveable in the inactive state at least substantially without any resistance. A braking device blocks the drive train in the inactive state of the drive motor and unblocks the drive train in the active state of the motor.
Abstract:
An electric motor driven barrier operator includes spaced apart frame plates for supporting the motor, an intermediate drive shaft and an operator final output shaft. The motor output shaft, intermediate shaft and final output shaft are mounted on bearings at fixed centers on the frame plates and the motor and intermediate shaft are interconnected by a stretchable flexible drive belt reeved over respective drive pulleys mounted on the motor output shaft and the intermediate shaft. The drive belt may be mounted on the pulleys and replaced without adjusting the position of the motor output shaft, the intermediate shaft or the operator output shaft.
Abstract:
The invention relates to a pivoting sliding door for vehicles, comprising a door wing (3), drive devices (2), transversal guiding devices (4, 5), and longitudinal guiding devices (7), which enable the at least one door wing (3) to move transversal to the vehicle wall and along the vehicle wall. The longitudinal guiding devices move in a transverse direction by means of the transversal guiding devices. When closed, the door is locked by a pivot part (10), which engages inside a guide (12) whereby preventing the door from being unintentionally opened. The invention is characterized in that the pivot part (10) has a guide part (11) that interacts with a guide (12) and that the guide, in the area in which the pivot part (10) interacts with the guide when the door is closed, has a circular arc section (12b) around the actual position of the rotation axis (9) of the pivot part (10).
Abstract:
A power drive assembly (110) for controlling movement of a closure panel (102, 105) of a vehicle includes a closure panel (102, 105) that moves relative to the vehicle between open and closed positions, and a latch (108, 115) for cinching the closure panel (102, 105) to the vehicle. The drive assembly (110) includes an actuator (134), a first torque output (136) coupled to effect movement of the closure panel (102, 105), a second torque output (138) coupled to the latch (115), and a clutch assembly (114, 150) coupled between the actuator (134) and the torque outputs (136, 138) for selectively transferring torque between the actuator (134) and the torque outputs (136, 138).
Abstract:
An elevator door system includes an elevator car having a front face defining a door opening. At least one elevator door is coupled to the front face of the elevator car for movement between an open position exposing the door opening and a closed position covering the door opening. At least one drive motor is mounted on the front face of the elevator car and is disposed between a lower edge and an upper edge of the elevator car. The drive motor is drivingly coupled to the elevator door for moving the elevator door between the open and the closed positions.
Abstract:
A drive system for a door (10) having an operator (35) and a counterbalance system (25). A drive tube (27) of the counterbalance system (25) interconnects the operator (35) and the door (10). A gear assembly (65) of the operator (35) engages the drive tube (27) for transferring rotational forces from the operator (35) to the drive tube (27). An aperture (105) extends through the gear assembly (65), and a fastener (106) extends through the aperture (105) to deform the drive tube (105). The fastener (106) sufficiently deforms the drive tube (27) to permit transfer of operating torque of the operator (35) to the drive tube (27), but not to an extent that prevents the gear assembly (65) from being removed from the drive tube (27).
Abstract:
A roller arm unit of the present invention has three or more pulleys by odd pieces. A door-opening cable and a door-closing cable extending from a power unit have tip ends fixed to a first and second end portions of a guide rail by way of the pulleys. The door-opening cable and the door-closing cable are intersected with each other between two neighboring pulleys. A path length of a take-up side cable becomes short and a path length of a pay-out side cable becomes long when the roller arm unit is caused to be swung due to influence of the curved portion.