Abstract:
A door lock for at least one door panel mounted on a door operator attached to a transit vehicle. Such door operator includes a door drive. The door lock having a lock shaft mounted on the operator of such door panel. The lock shaft is oriented in a direction disposed substantially parallel to an opening direction and a closing direction of such at least one door panel. At least one primary lock device connected to such lock shaft, the primary lock device engageable with such door drive for preventing motion thereof. At least one secondary lock device connected to such lock shaft. The secondary lock device engageable with at least one of such door panel and a hanger for such door panel for preventing movement thereof. At least one lock cam mounted on the hanger for engaging such lock shaft for rotating the lock shaft from an unlocking position to a locking position when such at least one door panel is moved in such door closing direction to a closed position of such at least one door panel. An unlocking actuator is attachable to such door operator. The unlocking actuator having a moveable portion connected to the lock shaft to rotate lock shaft to such unlocking position for unlocking such at least one door panel.
Abstract:
A tandem of independent powered door operators for passenger transit vehicles having a central lock mechanism and enabling each of the doors to be moved with a force of less than 80 N. Such door operators can be used on vehicles where the cross-sectional area within which to accommodate a door operator is limited. The door operator comprises an electric motor, a helical drive screw rotatably connected to such electric motor with a universal joint, a drive nut assembly engaged with such drive screw, a door hanger rod, a first door hanger bracket connected to a door and engaging the drive nut, a second door hanger bracket connected to a door and engaging a centrally located lock mechanism enabling locking of such door in a fully close position.
Abstract:
The suspension device which serves to connect a door element (2) to a running mechanism (6) guided in a rail (4) has a securing means (30) which can be connected to the door element (2), and a connecting screw (10) which is provided with a screw head (11) and a shank (12-15), can be fitted into the securing means (30) and screwed into a threaded drill-hole (9) provided in the running mechanism (6). The securing means (30) has two wing elements (32a, 32b) which can be connected to the door element (2) and which are connected by a central piece (33) which is provided with a recess (34) and is bent upward relative to the wing elements (32a, 32b) in such a manner that, after the securing means (30) is installed, the screw head (11) can be guided through under the central piece (33), so that the shank (12-15) can be introduced into the recess (34), which is adjoined by a collar (35) serving to hold the screw head (11). The suspension device, which can be produced cost-effectively and fitted and adjusted with little outlay, only requires a little space, so that the door element (2) can be fitted at a small distance from the running mechanism (6) and rail (4).
Abstract:
A running carriage arrangement (1) includes a housing receptacle (5) and a housing (9) embedded in it. The running carriage (7) can be vertically shifted within the housing (9). The shifting of the running carriage (7) is accomplished by an adjusting wheel (39), which can be rotated by hand and by which the running carriage (7) can be adjusted relative to the housing (9) and the sliding door (3).
Abstract:
A power door operator for mounting overhead of a door opening in a mass transit vehicle for moving a door panel over and away from the door opening, including a base plate incorporating a rotary helical drive internal of a door hanger. The door panel is locked in a closed position by primary and secondary means preventing drive rotation and panel movement.
Abstract:
An adjustable support for journals and hinge pins, especially for use with doors and gates. A rotary member (14) including an eccentrically positioned receiving bore (16) to take up a journal or hinge pin is supported so as to be rotatably adjustable in a bearing bore (12) of a bearing block (10). A setscrew (22) extending transversely of the bearing bore (12), passing through the same, is held for rotation in the bearing block (10) but fixed against axial displacement. The setscrew (22) touches the rotary member (14) such that a toothing of the type of a worm gear forms in the rotary member (14) as the setscrew (22) is turned.
Abstract:
A sliding door suspension system and a sliding door assembly for supporting a heavy sliding door from a door frame includes a rail horizontally mounted to the door frame. The suspension system includes a roller assembly which rollingly engages the rail and supports the heavy door. The roller assembly includes an axle or shaft having a bearing surface. The axle has at least one threaded end for securing the roller assembly and for attaching the roller assembly to a door hanger from which the heavy door is suspended. The roller assembly further includes a roller with a concentric hollow bore for seating a bearing assembly or bushing through which the axle extends in supportive engagement with the bearing assembly. The rail has a convex arcuate upper roller guide surface. The roller has a concave arcuate roller guide engaging surface which conforms to and engages the upper surface of the rail. The roller assembly also includes a door height and alignment adjusting member which threadably engages the axle. In one embodiment, the door height adjusting member comprises an eccentric sleeve, whereas in an alternative embodiment, the door height adjusting member comprises an adjuster block.
Abstract:
This device for actuating a tip-up or sectional door comprises an elongated frame structure supporting a linearly movable member driven through a worm screw or a chain connected to the door to be driven, and secured at two upper points of which one is located at one end of the frame structure. This one end is secured to a fixed support formed with a vertical notch of which the bottom edge has a groove formed therein, the upper edge of this notch being limited by a surface located at a predetermined distance from the groove bottom. The frame structure comprises a support surface, for example in the form of a pin, and a locking surface, for example in the form of another pin, located at a distance from the first pin which corresponds to the predetermined distance. This frame structure can be fitted by a single person by anchoring the lower pin of the support and then raising the frame structure to a substantially horizontal position, so as to lock automatically the device in its operative position.
Abstract:
Electromechanical operating device for a slidingly movable door, which device comprises a motor driving a worm on which is mounted a nut connected to the door which is is to be moved, said nut being secured in respect of rotation by a slide guide having a step at the point corresponding to the end of the stroke of the door. This step allows a certain rotation of the nut and constitutes a stop preventing the rearward displacement of the nut when the latter is acted on by means of the door.The nut is composed of two parts axially fastened to one another and mounted for rotation one about the other, these parts being so shaped as to ensure that they will be fastened together in respect of rotation with considerable angular play.The aim of the device is to prevent untimely unlocking of the closed door through the elastic torsional cocking of the worm.
Abstract:
In a door lock comprised of an elongated housing in which a piston loaded with a spring is displaceable in two opposite axial directions, a rotatable locking shaft connected to the door wing and provided with a pinion engaged with a rack formed on that piston, the spring is prestressed in the direction of the closing of the door. The spring acts on a displaceable supporting member which displaces the piston in the housing of the lock. An electromotor actuated by a control unit is operated to displace the supporting member.