Abstract:
A vehicle includes sidewalls, a tailgate located proximate to rear ends of the sidewalls, and a tailgate energy management system. The tailgate energy management system includes a governor coupled to one of the sidewalls and to the tailgate. The governor selectively applies a governing force to the tailgate to reduce an opening speed of the tailgate. The tailgate energy management system also includes a speed sensor sensing an opening speed of the tailgate and an electronic control unit electronically coupled to the governor and the speed sensor. The electronic control unit includes a processor and memory storing an instruction set. The electronic control unit receives a speed signal indicative of the opening speed of the tailgate and the processor executes the instruction set to cause the electronic control unit to transmit a control signal to the governor to slow the opening speed of the tailgate based on the speed signal.
Abstract:
A vehicle includes sidewalls, a tailgate located proximate to rear ends of the sidewalls, and a tailgate energy management system. The tailgate energy management system includes a governor coupled to one of the sidewalls and to the tailgate. The governor selectively applies a governing force to the tailgate to reduce an opening speed of the tailgate. The tailgate energy management system also includes a speed sensor sensing an opening speed of the tailgate and an electronic control unit electronically coupled to the governor and the speed sensor. The electronic control unit includes a processor and memory storing an instruction set. The electronic control unit receives a speed signal indicative of the opening speed of the tailgate and the processor executes the instruction set to cause the electronic control unit to transmit a control signal to the governor to slow the opening speed of the tailgate based on the speed signal.
Abstract:
A gear mechanism part for a cable-controlled window lifter is provided that includes a gear wheel and a cable drum that can be driven by the gear wheel. The gear wheel and cable drum are disposed on a common axis. The gear wheel and the cable drum are coupled by a positive fit to an outside gearing disposed on an outside circumference projection. In the cable drum, a fitting chamber for cable end fastening is provided. The fitting chamber is disposed inside the outer circumference projection on a cross-sectional plane projected perpendicular to the axis. In this way, a more compact design of the cable drum and transmission of higher driving torque are achieved.
Abstract:
The present invention provides for apparatus and methods for operating a garage door. An embodiment of an operating assembly for a door includes a shaft, a graduated drum, and an energy storing member. The shaft is coupled to the door such that the shaft rotates in a first direction as the door is opened and rotates in a second direction as the door is closed. The coupling of the shaft to the door is typically accomplished by a cable. The graduated drum is coupled to the shaft and the energy storing member is coupled to the graduated drum by another cable. The energy storing member is arranged such that the energy storing member stores energy as the door is closed and releases stored energy as the door is opened to assist in the raising and lowering of the door.
Abstract:
A window regulator, e.g., for a vehicle window, includes block and pulley arrangements each including a lift pulley mounted to a lift plate that slides along a rail. Operative movement of a crank assembly in a first sense tensions a cable to move the lift plate towards a first end of the rail and operative movement of the crank assembly in a second sense, opposite the first sense, tensions a cable to move the lift plate towards a second end of the rail. The regulator enables the reduction of the operating torque requirements without affecting the packaging of the crank assembly.
Abstract:
A powered closure drive mechanism is provided for moving a closure between open and closed positions. An elongated housing extends between first and second ends that are movable in opposite directions toward and away from each other. A rotatable lead screw is disposed longitudinally within the elongated housing. A reversible motor rotates the lead screw in a first direction and a second direction to urge the first and second ends of the housing toward and away from each other. A sensor assembly includes a worm fixed to the lead screw for rotation therewith and a rotatable gear meshingly engaged with the worm. The worm and gear are geared such that the gear rotates less than one revolution in response to the closure moving between the open and closed positions.
Abstract:
Gear unit and motor-driven gear unit for cable window lift system of motor vehicles, comprising drive and gear mechanism which cooperates with the drive and is coupled to rotatably mounted cable drum for winding/unwinding a cable of the system. Diameter of the cable drum of the gear unit ranges from about 22 mm to about 30 mm, preferably from about 24 mm to about 28 mm; gear ratio of the gear mechanism ranges from about 1:38 to about 1:55, preferably from about 1:42 to about 1:51. The cable drum has, on its end face, claws which engage in corresponding recesses on the end face of a worm wheel. Electric motors having maximum driving torque of only about 5.7 Nm can be used. The gear unit size can be reduced by about 40-50%, and it can be standardized for both electric and manual cable window lift systems for front or rear vehicle doors.
Abstract:
A garage door cable drum is disclosed for a sectional overhead door of a type having a substantially non-linear lift-weight to lift-height characteristic. The drum includes a generally spiral cable groove having a variable minor radius. The groove minor radius at any intermediate point along the groove is sized to provide a lift-cable moment arm that yields a corresponding cable lift force that is slightly less than an instantaneous lift weight of the garage door at any intermediate door elevation.
Abstract:
A modular drive assembly for a sliding door, comprising: a guide track having a hinge slidably received therein; a pair of pulleys disposed on either end of the guide track; a pair of cables each having an end that is secured to the hinge and the other end is secured to a cable drum of a motor drive unit mounted to the guide track, the motor drive unit being configured to rotate the cable drum, wherein the cable drum is also capable of freely rotating within the motor drive unit when the motor drive unit is not rotating the cable drum, wherein rotation of the cable drum causes the hinge to move in the guide track as one of the cables wraps onto the cable drum while the other one of the cables wraps off of the cable drum.
Abstract:
A sliding door drive assembly for a motor vehicle having a sliding door includes a transmission operatively connected to a motor for transmitting a rotating force to an output shaft. A cable drum is fixedly secured to the output shaft and rotates therewith. First and second cables are wound about the cable drum in opposite directions. The first cable extends from the cable drum forward along the sliding door. The second cable extends from the cable drum rearward along the sliding door. Support guides extend tangentially out from the cable drum to guide the first and second cables outwardly and away from the cable drum along a path minimizing frictional forces. Front and rear pulley assemblies are mounted to the motor vehicle and are operatively coupled to the first and second cables between the sliding door drive assembly and the sliding door for tensioning the first and second cables.