A window positioning apparatus for a vehicle comprising a window panel, a frame in which the window panel is guided between a closed position closing a window opening in the frame and an open position opening the window opening, and a multi-stage telescoping screw actuator mechanism connected between the window panel and the frame, the actuator mechanism being extendible to move the window panel from its open position to its closed position and collapsible to move the window panel from its closed position to its open position. The multi-stage telescoping screw actuator mechanism includes a plurality of screw members of progressively decreasing diameter respectively telescopically disposed within a next adjacent screw member of larger diameter. The plurality of screw members includes a first stage screw member that is rotatably supported and axially constrained in a housing fixed with respect to the frame, a last stage screw member attached to the window panel, and at least one intermediate stage screw member, and each intermediate stage screw member has internal and external threads respectively for engaging external and internal threads on next adjacent screw members, such that rotation of the first stage screw member in a first direction relative to the last stage screw member will cause the intermediate and last stage screw members to extend telescopically along an extension axis from the first stage screw member and rotation in a second direction opposite the first direction will cause the intermediate and last stage screw members to telescopically retract.

A cursor assembly for a window regulator of a vehicle door, including: a main body portion; a clamping member secured to the main body portion; a cable securement feature that is moveably secured to the main body portion by an adjustment screw, wherein rotation of the adjustment screw about an axis will cause the cable securement feature to move along the axis with respect to the main body portion; and a gear train operably coupled to the adjustment screw.

A driving mechanism for sliding a windowed frame guided by an outer frame. The sliding frame is attached to two vertical racks which engage with two pinions. The pinions are connected with a joint axle driven by a couple of engaged bevel gearwheels connected to a crank or to an electric motor. The joint axle with the pinions can be housed in a recess carved at the lower plank of a static window's frame. A compact motorized option in which each pinion is coupled with a gearbox and both gearboxes are driven by a central electric motor also can be housed entirely in the static window's recess. The motorized options also include: a control unit for controlling the direction and speed of the sliding, two limit switches for stopping the frame at highest and lowest positions, an electrical overload sensor which detects sudden sliding obstructions and a burglar alarm.

A driving mechanism for sliding a windowed frame guided by an outer frame. The sliding frame is attached to two vertical racks which engage with two pinions. The pinions are connected with a joint axle driven by a couple of engaged bevel gearwheels connected to a crank or to an electric motor. The joint axle with the pinions can be housed in a recess carved at the lower plank of a static window's frame.

A compact motorized option in which each pinion is coupled with a gearbox and both gearboxes are driven by a central electric motor also can be housed entirely in the static window's recess.

The motorized options also include: a control unit for controlling the direction and speed of the sliding, two limit switches for stopping the frame at highest and lowest positions, an electrical overload sensor which detects sudden sliding obstructions and a burglar alarm.

A mechanism for vertically sliding a windowed frame in one track alongside a static frame installed in a second track. The mechanism consists of two vertical racks installed on the sliding frame, which engage with two pinions coupled with a joint axle which are installed within the lower horizontal plank of the static frame. Turning the joint axle turns also the pinions which move the frame vertically. There are two options for turning the joint axle. The manual option involves turning a crank, the electrical option involves an electric motor coupled with a gearbox. The electrical option also includes a control unit for controlling the direction and speed of the sliding, two limit switches for stopping the frame at highest and lowest positions, an electrical overload sensor which detects sudden sliding obstructions and a burglar alarm. The sliding frame also includes four rollers which reduce the sliding friction.

A threaded drum is rotated by a drive shaft. As the threaded drum rotates, part of a cable is wrapped around the drum, while at the same time, a second part of the cable is unwrapped from the drum. Rotation of the drive shaft is based on rotation of an operator.

A threaded drum is rotated by a drive shaft. As the threaded drum rotates, part of a cable is wrapped around the drum, while at the same time, a second part of the cable is unwrapped from the drum. Rotation of the drive shaft is based on rotation of an operator.

A mechanism for vertically sliding a windowed frame in one track alongside a static frame installed in a second track. The mechanism consists of two vertical racks installed on the sliding frame, which engage with two pinions coupled with a joint axle which are installed within the lower horizontal plank of the static frame. Turning the joint axle turns also the pinions which move the frame vertically. There are two options for turning the joint axle. The manual option involves turning a crank, the electrical option involves an electric motor coupled with a gearbox.

The electrical option also includes a control unit for controlling the direction and speed of the sliding, two limit switches for stopping the frame at highest and lowest positions, an electrical overload sensor which detects sudden sliding obstructions and a burglar alarm. The sliding frame also includes four rollers which reduce the sliding friction.

A window positioning apparatus for a vehicle comprising a window panel, a frame in which the window panel is guided between a closed position closing a window opening in the frame and an open position opening the window opening, and a multi-stage telescoping screw actuator mechanism connected between the window panel and the frame, the actuator mechanism being extendible to move the window panel from its open position to its closed position and collapsible to move the window panel from its closed position to its open position. The multi-stage telescoping screw actuator mechanism includes a plurality of screw members of progressively decreasing diameter respectively telescopically disposed within a next adjacent screw member of larger diameter. The plurality of screw members includes a first stage screw member that is rotatably supported and axially constrained in a housing fixed with respect to the frame, a last stage screw member attached to the window panel, and at least one intermediate stage screw member, and each intermediate stage screw member has internal and external threads respectively for engaging external and internal threads on next adjacent screw members, such that rotation of the first stage screw member in a first direction relative to the last stage screw member will cause the intermediate and last stage screw members to extend telescopically along an extension axis from the first stage screw member and rotation in a second direction opposite the first direction will cause the intermediate and last stage screw members to telescopically retract.

A threaded drum is rotated by a drive shaft. As the threaded drum rotates, part of a cable is wrapped around the drum, while at the same time, a second part of the cable is unwrapped from the drum. Rotation of the drive shaft is based on rotation of an operator.