Abstract:
A system for dynamic braking a vehicle closure including a drive mechanism mounted to the vehicle, the drive mechanism having contacts to receive a drive signal to cause the drive mechanism to move the vehicle closure between an open and a close position in response to the drive signal, the drive mechanism capable of generating a generated drive signal during at least a portion of the vehicle closure from the open to the close position; and a controller having electrical outputs electrically coupled to the electrical contacts of the drive mechanism and electrical inputs to provide the drive signals to the drive mechanism and to receive generated drive signals from the drive mechanism, the controller configured to provide the generated drive signals back to the drive mechanism during operation of the vehicle closure to provide dynamic braking of the vehicle closure from the open to the close position.
Abstract:
Die Erfindung betrifft einen Türantrieb, mit einer Motor-Getriebe-Einheit und einer als Energiespeicher wirkenden Feder (7). Um einen Türantrieb zu schaffen, bei dem durch den Austausch eines einzigen Bauteils zwei Varianten für Scherengestänge bzw. Gleitschienengestänge gebildet werden, ist erfindungsgemäß vorgesehen, dass die Vorspannung der Feder (7) von der Motor-Getriebe-Einheit aktiv veränderbar ist, wodurch der gewünschte Schließmomentenverlauf erzeugt wird.
Abstract:
The present invention provides an automatic closing device and system for fire doors. The automatic closing device includes an actuating unit and a door lock unit. The actuating unit includes a box-shaped main body, a pair of support walls each having a shaft hole and installed in the main body, an actuating shaft inserted into the shaft hole of each of the support walls and moving in a horizontal direction, a rack mounted on an outer surface of the actuating shaft and sliding along the actuating shaft within a predetermined distance, and a pinion engaging with the rack and rotated by a movement of the rack. Further, an actuating bar connects a shaft of the pinion to a door closure unit which closes a fire door using hydraulic pressure. The door lock unit functions to lock or unlock a locking latch of the actuating shaft, using a locking unit.
Abstract:
Verfahren und Vorrichtung zum Schließen einer einklemmüberwachten Fahrzeugöffnung mittels eines Fahrzeugelements, das von einem Antriebssystem angetrieben wird, das mit einem Einklemmschutzsystem in Wirkverbindung steht, welches im Einklemmfall mit einem Reversieren des Fahrzeugelements in Öffnungsrichtung reagiert. Bei einer Schließbewegung des Fahrzeugelements wird das Einklemmschutzsystem mindestens nach einem vorausgegangenen Reversieren derart verzögert eingeschaltet, dass ein Schließvorgang über einen vorgegebenen kleinen Einklemmschutzverzögerungs-Fahrweg des Fahrzeugelements hinweg ohne Einklemmschutz erfolgt.
Abstract:
The invention relates to an emergency opening device for a preferably automatic two-panel sliding door having an energy storage element embodied by a rubber belt (6). Said rubber belt (6) is on one side irremovably fixed in a support (9) and on the other side removably fixed to a holding device (7) by means of a slide (8). During normal operation of the sliding door the pretensed rubber belt (6) has no effect. The holding device (7) releases the slide (8) with the rubber belt only in an emergency, such as a fire or power failure. The slide (8) interacts with the pulley carriages (5b) of the sliding door and by means of the energy stored in the rubber belt (6) moves the sliding panels (1a, 1b) into the fully opened position. To prevent a sudden, severe impact of the slide (8) against the pulley carriage (5b) the slide (8) comprises a friction brake (82, 83, 84). This brake (82, 83, 84) is released by a control device (56) only after the slide has contacted the pulley carriage (5b) so that the entire energy stored in the rubber belt (6) is then able to act upon the pulley carriage (5b). When the emergency is over the rubber belt (6) is tensed during the first closure of the sliding door by the movement of the pulley carriage (5b) and again fixed to the holding device (7).
Abstract:
A hinge for a self-closing element, in particular for a self-closing door (1), has tabs (3, 4) secured to the closing element (1) and to associated holding means. The tabs (3, 4) are joined together in an articulated manner by a linking pin (6). At least one permanent magnet (7, 12) is arranged on each tab (3, 4). The permanent magnets of both tabs have approximately the same shape and are arranged on the linking pin next to each other. The permanent magnets are in register and when the closing element is closed, the axes of the permanent magnet are parallel and their like poles face away from each other.
Abstract:
An automatic revolving door drive with a hydraulic piston-cylinder unit (7, 8), a closing spring (10) and an opening motor consists of an electromotor (5) and a hydraulic pump (4). The invention deals with a so-called servo-closer that opens a door in a mechanical and assisted manner and automatically closes the door in an hydraulically dampened manner by means of the closing spring. In order to be able to use low-power opening motors and to implement a relatively small design, the pressure of the hydraulic medium is regulated when the door is mechanically opened so as to be adapted to the momentary force of the closing spring (10). For that purpose, the closing spring (10) which co-operates with the piston (7) is supported at one end on the piston (7) and at the other end on a hydraulic pressure pad (25). The same hydraulic pressure is set in the pressure chamber (12) and in the hydraulic pressure pad (25) by a special pressure-regulating valve (20).
Abstract:
A door (10) positioning mechanism (12) with a movable carriage (40) driven by a motor (28) through a lead screw (42), wherein the movable carriage (40) is connected to open and close the door (10) by movement of the door (10) rectilinearly along a track (14) through the expedient of a drive train utilizing a multiple sheave and cable connection between the door (10) and the movable carriage (40). A hand disconnect (32) is provided to disable the positioning mechanism (12) and allow manual movement of the door (10). A thermal (fire switch) dead weight control (38) is also provided to override the positioning mechanism (12) and automatically shut the door (10).
Abstract:
To avoid complex, larger, expensive automatic closers having ineffective braking of the slamming of the closure, a retraction device (10) including a drum (18), a coiled spring power assembly (22) for driving the drum, a centrifugal brake (24) for controlling the power assembly and the drum to eliminate slamming of the panel during closing, and a gear train transmission assembly (26) to connect the power assembly and the centrifugal brake. In one embodiment, the drum is a spool which carries a cable (20) to connect the panel to the retraction device. In another embodiment, the drum has a rim (131) which frictionally engages a frame (12a) supporting the closure. The centrifugal brake is adjustable to take into account a wide range of closure sizes and frictional conditions.
Abstract:
PURPOSE: A window opening and closing device is provided to normally allow a user to open or close a window through manual control and to electrically close the window when fire is generated. CONSTITUTION: A window opening and closing device (100) comprises a base (110), a slider (120), and a turning arm (130). The slider is installed in the base in an advance and retreat structure, and the turning arm mutually connects a window and the slider with a link structure. A driving unit including a motor (142) and a movable element (141) is arranged at the rear of the slider. When the movable element is moved to the other side by reverse rotation of the motor, the slider is engaged with the opening of the window for manual opening. When the slider moves forwards by moving the movable element to one side by normal rotation of the motor, the window including the opened turning arm is turned and is electrically closed.