Abstract:
A door has a door leaf (10) which can be moved overhead between a closed and an open position and a weight-balancing device connected at one end to the door leaf and fixed at the other end. The weight-balancing device has one or several helical spring units space-savingly designed in such a way that the helical spring unit or units (16) are made of at least two driven helical springs loaded in parallel, of which the inner one has a helix with an outer diameter which is smaller than the inner diameter of the helix of the outer spring. The helical springs are coaxially arranged or nested one inside the other. Seen in the same longitudinal axial direction, one spring is wound clockwise and the adjacent spring is wound anti-clockwise, so that the helices of adjacent springs cross each other.
Abstract:
A driving device for an object moved back and forth by a driver (13) or an actuating shaft has a driving motor unit (10) and a driven member (1) that may be rotated by the driving motor unit and that frictionally engages a toothless transmission element. In order to obtain a practically slip-free, cheap to produce and silent transmission, at least one additional friction roller (2) associated with the driven member (1) is form-fittingly linked to the driven member (1) so as to act as a transmission member. The friction surfaces of the friction roller and the driven member have synchronous speeds of rotation and the traction force-transmitting element (8) is guided over part of the circumference of the friction surfaces of the at least two roller-shaped members (1, 2).
Abstract:
A window regulator for operating a slidable window panel. The window regulator includes a drive drum mounted for rotation in a wire winding direction to wind a first wire having one end mounted on a window panel carrier and in a wire unwinding direction to unwind the first wire. A driven drum is mounted for rotation in a wire winding direction to wind a second wire having one end mounted to the carrier and in a wire unwinding direction to unwind the second wire. The drive and driven drums come into connection with each other for rotation of the driven drum in unison with the drive drum only when the drive drum rotates in its wire unwinding direction. A device is provided for making a connection between the drive and driven drums for rotation of the driven drum in unison with the drive drum in response to rotation of the drive drum in its wire winding direction.
Abstract:
A window regulator for operating a slidable window panel. The window regulator includes a drive drum (14) mounted for rotation in a wire winding direction to wind a first wire (W1) having one end mounted on a window panel carrier (C) and in a wire unwinding direction to unwind the first wire. A driven drum (15) is mounted for rotation in a wire winding direction to wind a second wire (W2) having one end mounted to the carrier and in a wire unwinding direction to unwind the second wire. The drive and driven drums (14, 15) come into connection with each other for rotation of the driven drum in unison with the drive drum only when the drive drum rotates in its wire unwinding direction. A device (31, 32, 17) is provided for making a connection between the drive and driven drums for rotation of the driven drum in unison with the drive drum in response to rotation of the drive drum in its wire winding direction.
Abstract:
A drive of a sliding door of a motor vehicle, comprising an electric drive unit, a drive cable, a guide for the drive cable, the sliding door being movable relative to a body by means of the drive cable, and a cable deflection having a deflection wheel which is rotatably mounted in the cable deflection, wherein a fastening means for the cable deflection can be used as an adjustment means for the deflection wheel.
Abstract:
Disclosed are alternate embodiments of various components of a barrier operator system. and methods of operation, including of the mechanical drive subsystem with segmented and self-locking rail unit, rail mounting supports, belt and chain drive tensioning, and drive assembly carriage and interface; the electronics and software routines for controlled operation of the various barrier operator functions; wall console communications with the barrier operator; encryption and decryption of access codes; establishment and monitoring of travel limits and barrier speed and force profiles; thermal protection of barrier operator drive motors; and establishment and control of communications from the barrier operator to accessories by way of a wireless adapter.
Abstract:
Disclosed are alternate embodiments of various components of a barrier operator system. and methods of operation, including of the mechanical drive subsystem with segmented and self-locking rail unit, rail mounting supports, belt and chain drive tensioning, and drive assembly carriage and interface; the electronics and software routines for controlled operation of the various barrier operator functions; wall console communications with the barrier operator; encryption and decryption of access codes; establishment and monitoring of travel limits and barrier speed and force profiles; thermal protection of barrier operator drive motors; and establishment and control of communications from the barrier operator to accessories by way of a wireless adapter.
Abstract:
When a main switch (82) is in an on-state, a controller (80) allows an electric motor (41) to drive a sliding door to open and close an opening, and when the main switch (82) is in an off-state and a half latch switch (66) is in an on-state, the controller (80) performs a braking control to allow the electric motor (41) to generate a braking force. When the main switch (82) is in the on-state, the sliding door can be opened and closed automatically. When the main switch (82) is in the off-state and the sliding door is closed manually, the improperly-closed state detecting switch is switched on before a full-latch state, the controller performs a braking control of the driving source. In this manner, damage to components caused by the inertial force of the driving source which results from an abrupt stop of the opening and closing unit can be certainly prevented without enhancing the rigidity of a casing, etc.