Abstract:
An internal entrapment system for a garage door operator (30), comprising a motor (48) for transferring a garage door (12) between first and second positions; a pulse counter (62) for detecting a speed of the garage door (12) during transfer between first and second positions; a potentiometer (56) for determining a plurality of positional locations of the garage door (12) during transfer between first and second positions separate from said pulse counter (62); and a control circuit (50) for calculating a motor torque value from the speed for each of said plurality of positional locations to compare with a plurality of door profile data points, wherein said control circuit (50) takes corrective action if the difference between the motor torque value for each of said plurality of positional locations and said plurality of door profile data points exceeds a predetermined threshold, and wherein said control circuit (50) updates said plurality of door profile data points to the motor torque values for each respective said plurality of positional locations if the predetermined threshold is not exceeded. In another embodiment both speed and position are detected by a slider element (58) which is connected to the control circuit (50). A closed loop lift cable system (100) may be employed for use with the internal entrapment system. The system (100) utilizes a lift cable (164) connected between a bottom section of the door and a drum mechanism (150) and an upper cable connected between a top section of the door and the drum mechanism (150). A tension device (180, 200) ensures that the door and cables act as one and thus allow closed loop control of the door.
Abstract:
A cable deflection pulley pertaining to a window lifter comprising a drive unit, a guide rail for a driver which is connected to the window and to the cable, and cable deflection pulleys with a guide or bearing groove for the cable. The device has an axially directed assembly groove in the proximity of the bearing groove to facilitate and accelerate assembly and to reduce the amount of cable required. The assembly groove contains an area adjacent to the axis of the cable deflection pulley, and an area adjacent to the bearing groove, through which the cable is pulled from the assembly groove into the bearing groove.
Abstract:
A transmission assembly for a powered sliding door system for an automotive vehicle. The transmission assembly includes a rotatable input member, a stationary hub, and a planetary gearset disposed within the hub and operatively cooperating with the input member. The transmission assembly also includes an electromagnetic brake disposed within the hub and operatively cooperating with the planetary gearset to lock and unlock a gear of the planetary gearset. The transmission assembly further includes a rotatable output member operatively cooperating with the planetary gearset.
Abstract:
A motor vehicle door module, built as a preassembled unit, includes a windowpane movable between open and closed positions, an integrated window regulator assembly including a drive mechanism such as a drive motor or hand crank for moving the windowpane between the open and closed positions, a cable assembly, cable routers such as pulleys or sliders, a seal assembly, and a door frame assembly including run channels. The windowpane includes a bracket assembly which is slidably disposed within the run channels. The cable assembly includes a cable connected to the bracket assembly and the drive mechanism for transferring a force of the drive mechanism to the bracket assembly to move the windowpane between the open and closed positions. The cable routers are attached to fore and aft door frames of the door frame assembly and route the cable between the drive mechanism and the bracket assembly. The seal assembly forms a seal between the windowpane and the door frames and between the windowpane and the motor vehicle body. The windowpane may be positioned so that in the closed position, the windowpane is generally flush with an exterior surface of the motor vehicle body. The brackets of the bracket assembly and the run channels may be T, U, J and I shaped in cross section. The cable can be attached to the bracket assembly by a snap fit carrier.
Abstract:
A window regulator for driving two sliding window panes, such as of a truck rear window, in opposing directions has a housing containing two linear actuator, one driving each of the sliding panes. The first actuator has opposite ends engaged with a drive drum and a midpoint engaged with the first sliding pane, and the second linear actuator has opposite ends engaged with the drive drum and a midpoint engaged with the second sliding panes. The drive drum has two parallel, spiral grooves, one receiving each of the linear actuators. The first and second linear actuators pass around pulleys and guide blocks attached to the housing and follow separate paths within the housing such that rotation of the drive drum in one direction pulls on respective first ends of the first and second linear actuators to draw the sliding panes toward one another, and rotation of the drum in the opposite direction pulls on respective second ends of the linear actuators to draw the panes away from one another. The regulator housing is adapted to be attached to the fixed panes of the window assembly outboard of the sliding panes or to some other stationary structure of the vehicle surrounding the window opening.
Abstract:
In a system for automatically opening or closing a sliding door or the like for a vehicle, an undesired clamping of an object between the door and the vehicle body, resulting in increased tension force in the wire moving the door, is sent early and relieved quickly. The wire (4) is solidly secured to the sliding door and wound onto a drum (10) to open or close the door by a motor driving the drum, and two tensioners (11a and 11b) are provided respectively on opposite sides of the drum and between the drum and door. Each sensor has a movable part (19) positioned in accordance with the tension force in the wire passing through the tensioner, sensor plates (20) are provided on the movable parts of the tensioners, and magnetic sensors (21) are provided to detect the moving speeds of the plates. When the moving speeds of the plates are larger than a predetermined value, preset in advance, in cases other than when the door is at a fully closed or fully opened condition, a controller concludes that some object has been clamped between the door and the vehicle body and immediately relieves such clamping.
Abstract:
A powered sliding device for sliding a vehicle sliding door along a guide rail comprises a base plate fixed to the vehicle body, a wire drum rotatably mounted on the base plate and rotated by a motor, a wire cable provided between the wire drum and the sliding door, a first holder provided in the vicinity of one end of the guide rail and having a first pulley making contact with the wire cable, a second holder provided in the vicinity of the other end of the guide rail and having a second pulley making contact with the wire cable, a tension roller provided on the base plate for making contact with the wire cable by resiliency of a spring, a flexible cable sheath covering the outer periphery of the wire cable between the first holder and the base plate and having one end to be connected to the first holder, a supporting member connected to the other end of the cable sheath. The supporting member is slidably mounted to the base plate in parallel with a running direction of the wire cable.
Abstract:
A powered sliding-door system of an automobile with a sliding-door drive device A and an automatic door closer B. The sliding-door drive device A has a case body 1 opening downward, a case cover 2 covering the opening of the case body 1. A pair of guide pulleys are rotatably supported by axes, and each axis stands on the front end and the rear end of the case in slanting posture. A loop of cable is arranged between the pair of guide pulleys so that a working side is arranged outside of the case body and a return side is arranged in the case body. The loop of cable is driven by an motor driven actuator 12.
Abstract:
An electromagnetic actuator for door units and the like, particularly for up-and-over doors, which includes a tubular guide having at least two side-by-side rectilinear portions, a flexible rack housed partly within one rectilinear portion of the guide and partly within the other, such that it can undergo axial sliding, a geared motor unit provided with a gearwheel engaging the flexible rack via an aperture, provided in at least one of the two rectilinear portions of the tubular guide, one hanger fixed to the flexible rack, and members for mechanically connecting the hanger appendix to the door unit or the like to be moved.
Abstract:
A closure assembly is provided assembled from framing sections being fiberglass pultrusions having thin walls, sufficiently thin so as to require reinforcing of the pultrusion proximate the ends and at predetermined positions to allow for (i)joining adjacent pultrusions together and (ii) assembling hardware to the pultrusion, (iii) mounting the pultrusions when assembled in an opening.