The invention relates to a device for releasing and resetting a fire and smoke barrier. In a normal use state, a clutch member is held by an electromagnetic attraction unit, so that a push rod ejecting module cannot be actuated, and a door operator is controlled by a clutch module thereof. Upon power failure, for example upon an accident, the clutch member is released by the electromagnetic attraction unit, and a barrier release member is activated by the push rod ejecting module so as to shut the fire and smoke barrier. Upon power restoration, the clutch member is attracted and held by the electromagnetic attraction unit, and the push rod ejecting module is reset by a push rod resetting module. At the same time, the barrier release member is also reset.

System for detecting the movement conditions of the leaf (2) closing a barrier, this leaf being able to occlude a delimited opening or passage and in which the leaf itself is moved by a motor (5) whose rotation shaft (R1) is associated with a motion transmission mechanism to this leaf. On said motor is present a first device for measuring the rotation of said rotation shaft (R1), and at least a second measuring device is associated with at least a second rotation shaft (R2), said second rotation shaft being connected to the first shaft by means of a reduction gear (8), whose reduction ratio is non-integer.

System for detecting the movement conditions of the leaf (2) closing a barrier, this leaf being able to occlude a delimited opening or passage and in which the leaf itself is moved by a motor (5) whose rotation shaft (R1) is associated with a motion transmission mechanism to this leaf. On said motor is present a first device for measuring the rotation of said rotation shaft (R1), and at least a second measuring device is associated with at least a second rotation shaft (R2), said second rotation shaft being connected to the first shaft by means of a reduction gear (8), whose reduction ratio is non-integer.

A system for an automated cabin-divider door for an aircraft includes a door, a motor for moving the door to an open position, a limit switch configured to detect when the door is in a fully open position and to stop the motor, and electronics coupling the motor and the limit switch to an avionics system. The avionics system determines when the door is to be opened and provides a signal to the motor for moving the door to the fully open position. A method for automatically opening the cabin-divider door includes determining whether the aircraft is on the ground or in flight, determining whether the aircraft is taxiing, and determining whether the aircraft is in a final phase of approach. When the aircraft is taxiing or in the final phase of approach, the method includes sending a command signal to the motor for opening the cabin-divider door.

An opening/closing device for a vehicle sliding-window panel, includes a sliding-window panel opening and closing an opening part provided in a vehicle body, upper and lower guide rails to support the sliding-window panel to slide, and a slide driving mechanism fixed to one guide rail either the upper or lower guide rail. The slide driving mechanism includes a motor, a lead screw rotated by driving the motor, and a screw nut which is screwed with the lead screw to linearly move in a longitudinal direction of the one guide rail by rotation of the lead screw and is coupled with the sliding-window panel to operate the sliding-window panel to open and close by the linear movement. The one guide rail is integrally formed with a first and second supporting portions which rotatably support both end portions of the lead screw respectively.

This invention provides sliding door enclosure assemblies for a framework structure, which uniquely enables equal lateral displacement of sliding doors, with the minimal engagement of a single door alone. More specifically, the sliding door enclosure assemblies of this invention comprise paired rotatable sliding doors, paired rotatable leaders, paired rotating conveyors, which conveyors are advanced by the paired rotatable leaders, guides which further comprise attachment regions to attach the paired rotatable sliding doors to the paired rotating conveyors and at least one interlocking rotatable movement regulator set of two elements, which rotate in equal and opposing directions, so that paired rotatable leaders operationally connected thereby promote lateral displacement of operationally connected rotatable sliding doors about the framework structure.

A rear slider window assembly for a vehicle includes an upper rail and a lower rail, with a fixed window panel having at least one glass panel having an inner surface and an outer surface and an opening between opposite side panel portions of the fixed window panel. The upper rail is attached at the inner surface of the fixed window panel at an upper region of the fixed window panel and above the opening. The lower rail is attached at the inner surface of the fixed window panel at a lower region of the fixed window panel and below the opening. First and second movable window panels are movable along the upper and lower rails between a closed position, where the movable window panels cooperate to close the opening, and an opened position, where both movable panels move away from one another to open the opening.

A movable body driving device includes upper and lower racks movable in a lengthwise direction; a motor which can rotate forward and backward; a drive pinion fixed to a rotary shaft of the motor; and a driven pinion engaging the upper and lower racks. The driven pinion is driven to rotate by the upper rack to thereby drive the lower rack linearly in a direction reverse to the upper rack. A sliding door is connected to the lower rack and is opened or closed in accordance with forward or backward rotation of the motor.

A movable body driving device includes upper and lower racks movable in a lengthwise direction; a motor which can rotate forward and backward; a drive pinion fixed to a rotary shaft of the motor; and a driven pinion engaging the upper and lower racks. The driven pinion is driven to rotate by the upper rack to thereby drive the lower rack linearly in a direction reverse to the upper rack. A sliding door is connected to the lower rack and is opened or closed in accordance with forward or backward rotation of the motor.

Provided is a small plug door device having a slide base is installed slidably in a vehicle width direction relative to a fixed base. A door drive mechanism for moving one door in a vehicle front-rear direction via a connecting portion has a drive portion including an electric motor, a drive wheel member, a follower wheel member, and an endless member, and is installed on the slide base. A guide portion guides a shaft portion provided on the connecting portion so as to move the shaft portion in a vehicle width direction. In a double-speed rail in which a pinion is disposed between two racks, one rack is connected to the slide base, the other rack is connected to the door side, and the pinion is connected to the connecting portion.