Abstract:
A door system having a sectional door (D) moveable between an open position and a closed position, a track system (T, T1) guiding movement of the sectional door, and an operator system (10) driving movement of the sectional door, said operator system including a motor assembly (42) having an adjustable housing (48) and capable of pivotal movement to a door locking position, said adjustable housing having a base section (70), an extendable section (72), and a latching mechanism (100) for maintaining the extendable section in a desired position and for permitting selective axially repositioning of the extendable section relative to the base section.
Abstract:
A power door operator for transit vehicles utilizing a rodless pneumatic cylinder (10) to open and close doors (2, 3) in the sidewall of a vehicle. Door movement having a controlled door edge force is achieved through coupling an external piston (11) of the cylinder and vehicle doors through belt (16). Magnetic coupling between internal and external pistons of the cylinder provide force having breakaway value applied to the operated door. A novel lock (30, 31, 32, 33) operated by admission of air to the cylinder (10) latches or unlatches the door in its closed position subsequent or prior to door closing or opening. Control of door motion at the ends of its travel is achieved through the use of a novel differential area (10a) in the cylinder. Piston force is modified for positions approaching either end of the cylinder using a sliding rod (40) contained by the piston (10a). Movement of the rod modifies available force.
Abstract:
The invention relates to a drive device, comprising a drive device housing with a longitudinal axis, at least one gearing assembly received in the drive device housing, with a gearing housing, which is received in the drive device housing so as to be rotatable about the longitudinal axis thereof, an engagement element received in the drive device housing and connected thereto for rotation therewith with respect to a rotation about the longitudinal axis thereof, said engagement element comprising an end face running substantially orthogonally to the longitudinal axis, which end face is in frictional and, if desired, additionally interlocking engagement with an associated counter end face of the gearing assembly or one of the plurality of gearing assemblies, and a spring, which is received in the drive device housing and prestresses the end face and the counter end face against one another.
Abstract:
The invention relates to a rotation path detection device for vehicles of public transportation having a drive device (20) for an entry/exit apparatus, which is mounted so it can be pivoted and/or displaced. Said apparatus has a drive unit (22), an electric drive motor (44), and a first reduction gear (26) and a second reduction gear (72), which is connected to the drive motor (44), having a sensor for ascertaining the position of the reduction gear.
Abstract:
The invention relates to a drive device (20) for entrance/exit devices for public transit vehicles, comprising a drive unit (22) disposed in and driving a column (24) that rotates about an axis of rotation Z-Z during opening and closing operations, said column opening and closing an entrance/exit device. The drive unit (22) is supported in the vehicle by way of a support component (40) and the support component (40) acts as a counterbearing for a torque of the drive unit (22). A coupling device (72) is disposed between the drive unit (22) and the support component (40), said coupling device facilitating a rotation of the drive unit (22) about the axis of rotation Z-Z when a limit of the torque acting on the drive unit is exceeded.
Abstract:
The invention relates to a drive device (20) for entrance/exit devices for public transit vehicles, comprising a drive unit (22) disposed in and driving a column (24) that rotates about an axis of rotation Z-Z during opening and closing operations, said column opening and closing an entrance/exit device. The drive unit (22) is supported in the vehicle by way of a support component (40) and the support component (40) acts as a counterbearing for a torque of the drive unit (22). A coupling device (72) is disposed between the drive unit (22) and the support component (40), said coupling device facilitating a rotation of the drive unit (22) about the axis of rotation Z-Z when a limit of the torque acting on the drive unit is exceeded.