Abstract:
An automatic sliding door opening and closing system comprises a continuous, powered belted drive system and a clamp arrangement capable of fixably and releasably attaching the automotive sliding door to the belt drive system so as to be automatically driven along a predetermined path and capable of releasing the belt drive system under predetermined conditions. The powered belt drive system is located so as to be combined with one of the door's standard sliding door hinge systems. The clamp arrangement is a rotary device biased into a pinching engagement on the belt of the belt drive system via a cam and spring arrangement.
Abstract:
A drive arrangement (10) for a shaft (12), such as a shaft for driving a sectional door, roller shutter or the like, is in the form of a module, carried, in use, by the shaft (12) and including a motor (14), a driven wheel (16) fixed for rotation with the shaft (12) and drivable, in use, by the motor (14), and clutch means (18) and operable between the motor (14) and the wheel (16). The module further includes brace means (20) in the form of a limb attachable to a member which is fixed relative to the axis of the shaft (12), to brace the module against turning as the shaft (12) is driven.
Abstract:
A system and method for decoupling a barrier from a barrier movement apparatus for the manual operation of the barrier. Advantageously, the decoupling is performed in response to a wireless signal and may be done only when the barrier is determined to be in a safe position.
Abstract:
A motorized operator for opening and closing a window sash relative to a window frame via an arm mechanism connected to the window frame and being adapted to be installed in a cavity defined in the window frame. The operator comprises a motor, a drive axle rotated by the motor, and first and second gears in meshed engagement. The first gear is mounted on the drive axle, while the second gear is mounted to the arm mechanism such that motorized rotation of the first gear rotatably drives the second gear thereby causing the arm mechanism to pivot for opening and closing the window sash. A manual operator is adapted to disengage the first and second gears from one another while becoming engaged to the second gear for manually rotating the second gear and so manually operate the arm mechanism. The manual operator comprises a handle and a manual actuator which includes a sprocket. The manual actuator is engageable on the drive axle for selectively displacing the first gear along the drive axle and cause the latter to disengage from the second gear while the sprocket of the manual actuator becomes engaged to the second gear, whereby a rotation of the manual actuator by way of the handle causes rotation of the sprocket and of the second gear and thus also a pivot of the arm mechanism.
Abstract:
A power liftgate drive assembly automatically moves the liftgate of a vehicle between its open and closed positions. The drive assembly is secured to the vehicle at a position near the top of the liftgate. The drive assembly includes a motor that drives a sector gear between two positions. A guide rod is secured to the sector gear to translate the rotational movement of the sector gear into the pivotal movement of the ligtgate. A slot extends through the sector gear that allows the liftgate to be moved manually. A latch locks the guide rod in position with respect to the sector gear for automated movement whereas the latch releases the guide rod to move in the slot for manual operation.
Abstract:
A power-operated system for actuating the rear doors or liftgates of motor vehicles is disclosed. The system includes a strut assembly having two struts, each strut mounted on one side of the door between the door and the vehicle's door frame. One end of each strut is connected to a powered rotating arm. To open the door, the rotating arms change the angular orientation of the struts such that they have a substantial mechanical advantage. In this position, the force provided by the struts overcomes the weight bias of the door, thus opening the door. To close the door, the rotating arms change the angular orientation of the struts such that the struts have a decreased mechanical advantage, reducing the force provided by the struts, and therefore causing the door to fall closed under its own weight bias. A control system for controlling the power-operated system is also disclosed.
Abstract:
A separating device for a door leaf that is moveable overhead has a coupling element movable between a coupling position, in which the coupling element couples an output element of the drive device to the structural component, and a freewheeling position, in which the output element of the drive device is decoupled from the structural component. A locking member is provided which is movable between at least one release position, in which the locking member allows a movement of the coupling element into the freewheeling position, and at least one locking position, in which the locking member counteracts a movement of the coupling element into the freewheeling position. The locking member can be coupled to the drive device.
Abstract:
A clutch for an electric garage door includes a sliding base slidably mounted on a rail that is mounted in the garage. The sliding base includes two chain passages defined in two opposite sides thereof. A pawl is retractably mounted in the sliding base and partially extends into the first chain passage. A connection block is attached to a chain and is driven by the drive device. The connection block includes a cavity defined to receive the pawl in the first chain passage. Then the sliding base can be moved to pull and open the door because a linkage is connected between the sliding base and the door. The pawl is moved down from the cavity of the connection block when the cable is pulled. Consequently, the sliding base can be manually moved to open the door when there is a power failure.
Abstract:
A device for suspending and moving a door leaf perpendicular and parallel to a wall. The device comprising a first set of rails extending in a direction perpendicular to the wall, a second set of rails extending in a direction parallel to the wall and an elongated member which extends both parallel to and perpendicular to the wall. The door leaf is slidably mounted on the first set of rails and the first set of rails is slidably mounted on the second set of rails. The door leaf includes a motor which operatively engages the elongated member to move the door leaf perpendicular to the wall and parallel to the wall to open and close an opening in the wall.
Abstract:
A manually releasable coupling device for connecting an elongate operator chain (2) with a frame or main frame member of a window comprises a first coupling member (3) for connection with a free end of the operator chain (2) and a second coupling member (6-10) designed for mounting in or on the frame or main frame member. The first coupling member is a flat disc-shaped element (3) with a substantially keyhole-shaped recess 85), while the second coupling member comprises a shaft section (6) for mounting in a bore in the frame member or the main frame member in connection with a turning handle (7). The shaft section (6) has a local constriction (8) for releasable engagement with the keyhole-shaped recess (5) in the disc-shaped element (3). In order to allow manual closing of the window under surmounting of sealing pressure, the shaft section may be eccentric relative to the rotational axis of the turning handle.