Abstract:
A drive for opening and closing a cover member in a motor vehicle has a lever which includes a detent device, for example a spring-loaded pin, which is pressed into a detent notch by force of a spring and is disengageable when a predetermined force is exceed and as a result disconnects an electric motor for opening and closing said cover member. It is therefore possible to open the cover member even when the electric motor fails, by disengaging the lever by hand, and the lever forms an overload safety device for the electric motor in the event of the cover member becoming jammed.
Abstract:
The device (2), which is used to lock running gear (1) guided in a rail (5) and is or can be connected to the latter, has a body (21, 22) in which a locking pin (23) is displaceably mounted and, by means of a resilient element (24), is held resiliently in a first position, so that the locking pin (23) can be brought by the action of a force from the first position, in which it can engage in a locking element (36, 53) provided in the rail (5) or connected to the rail (5), into a second position, in which it is released from the engagement in the locking element (36, 53). The locking device (2), which is constructed simply and cost-effectively, therefore permits dividing elements (90), such as sliding doors, sliding counters or folding walls, which are guided by the running gear (1), to be closed off securely.
Abstract:
A motor vehicle has a pivoting door that pivots upward and downward. A control device for controlling the pivoting door comprises an electric drive unit that drives the pivoting door by an electric power; a door operation switch that permits the pivoting door to pivot between a full-close position and a full-open position with the aid of the electric drive unit when operated; a movement stopping structure that stops and holds the pivoting door at a half-open position when operated; and a control unit that controls the electric drive unit and the movement stopping structure in accordance with an ON/OFF operation of the door operation switch.
Abstract:
A portable remotely controlled automatic door closing apparatus enables the door of a room or office to be closed from a remote location within the room or office by transmitting a signal to an actuator which exerts a force on the door to move it from an opened position to a closed position. The apparatus comprises a battery or AC powered motor which moves a lever arm into engagement with the door to rotate the door about its hinges from the open to the closed position. The apparatus is free standing and immobilized on the floor in a non-connected relationship thereto between an adjacent wall and the door in its open position. The apparatus is immobilized to prevent slipping by a floor-engaging mechanism, such as an adhesive, an anti-skid rubber material, or suction cups, or carpet engaging projections.
Abstract:
A remotely controllable door operator system permitting active and passive use of a door includes a transmitter, a receiver, a master timing sequencing mechanism, a clutch-regulated prime mover that can actively move the door, and a mechanism that senses whether the door is fully closed. The door operator is controllable by depressing a single button on the transmitter, which sends a signal to the receiver. If the sense mechanism determines the door is fully closed, the receiver causes the timing mechanism to cause the prime mover to disengage the door latch and to commence actively opening the door for a first time period. The timing mechanism may be user adjusted to control the extent of the door opening by adjusting the length of the first time period.
Abstract:
A portable remotely controlled automatic door closing apparatus enables the door of a room or office to be closed from a remote location within the room or office by transmitting a signal to an actuator which exerts a force on the door to move it from an opened position to a closed position. The apparatus comprises a battery or AC powered motor which moves a lever arm into engagement with the door to rotate the door about its hinges from the open to the closed position. The apparatus is free standing and immobilized on the floor in a non-connected relationship thereto between an adjacent wall and the door in its open position. The apparatus is immobilized to prevent slipping by a floor-engaging mechanism, such as an adhesive, an anti-skid rubber material, or suction cups, or carpet engaging projections.
Abstract:
A door which can be automatically opened and closed can have an additional releasable connection for allowing the door panels to be manually opened by disengaging the door panels from the device for automatically opening and closing the doors. In particular, two-panel doors which execute a combined sliding and rotational motion around a vertical axis of rotation during the closing and opening motion can be configured with such a device to make it possible to use the doors in evacuation and emergency routes, i.e. routes in which a manual force can be applied from inside to open the door panels. Further, so that the door does not remain open, there can also preferably be switches or circuits in the construction which indicate that a manual opening of the door panels has occurred, in which case an electronic signal can be generated to place the drive device in motion, to thereby automatically restore the connection between the door panels and the drive system.
Abstract:
A power door operator for transit vehicles utilizing a rodless pneumatic cylinder as a prime mover in opening and closing doors in the sidewall of a transit vehicles. Door movement having a controlled, predetermined door edge force is achieved through mechanical coupling an external piston of the rodless cylinder and vehicle doors through and endless toothed belt. Magnetic coupling between internal and external pistons of the cylinder provide controlled force having a maximum or breakaway value applied to the operated door. A novel reaction lock operated by admission of pressurized air to the cylinder latches or unlatches the operated 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 internal piston in the pneumatic cylinder. Available internal piston force is modified for predetermined piston positions on approaching either end of the cylinder through the use of a sliding rod contained by the pressure sensitive internal position. Movement of the sliding rod adjust the effective piston area so as to modify available force to controlling door motion. An additional embodiment of the invention disclosed utilizes direct panel locking means independent of the operator drive belt.
Abstract:
An operator mechanism for a sliding gate including an electric motor driving a speed reducer through a worm gear and worm wheel arrangement and a multi-disk clutch positioned within the housing of the speed reducer. A sprocket wheel is positioned on one end of the output shaft of the speed reducer and a clutch operator member is slidably mounted on the other end of the output shaft. A disconnect mechanism is provided in association with the collar to move the collar in a macro sense to engage and disengage the clutch, and an adjustment mechanism is also provided in association with the collar to move the collar in a micro sense to adjust the load at which the clutch will slip when encountering an obstacle. The disconnect mechanism may be operated without disturbing the setting of the adjustment mechanism.
Abstract:
A releasable connection device for connecting a motor driven drive cable to a closure includes a pin attached to the closure and having a head supported by a necked down stem. A cylindrical housing member has an opening in a lateral wall thereof which receives the pin. A slide member is attached to the drive cable and is reciprocably carried by the housing member. The slide member has an open ended slot smaller than the head of the pin and receiving the necked down stem. A spring acts between the housing member and the slide member to urge the members to relative positions in which the head of the pin is captured to effect a connection between the drive cable and the closure. The spring yields upon imposition of force to permit energy absorbing limited relative movement between the members and yields further to permit withdrawal of the open ended slot of the slide member beyond the head of the pin so that the pin is released from the housing member. A cam surface acts between the housing member and the head of the pin to eject the head laterally through the opening of the housing member so that the drive cable is effectively disconnected from the closure.