Abstract:
Eine Sicherungsvorrichtung zur Sicherung des Flügels eines Fensters, einer Tür oder dergleichen gegen unzulässiges Öffnen ist dazu ausgebildet, einen jeweiligen Zustand des Flügels zu erfassen, der sich in einem Geschlossenzustand oder in einem Offenzustand befinden kann, und eine jeweilige Stellung einer Beschlaganordnung des Flügels zu erfassen, die zwischen einer Entriegelungsstellung und einer oder mehreren Verriegelungsstellungen verstellbar ist, wobei der Flügel vollständig öffenbar, insbesondere drehöffenbar, ist, wenn die Entriegelungsstellung der Beschlaganordnung vorliegt, und wobei der Flügel lediglich eingeschränkt öffenbar, insbesondere kippöffenbar, oder gegen ein Öffnen gesperrt ist, wenn eine der Verriegelungsstellungen der Beschlaganordnung vorliegt. Ferner ist die Sicherungsvorrichtung dazu ausgebildet, in Abhängigkeitsowohl von dem erfassten jeweiligen Zustand des Flügels als auch von der erfassten jeweiligen Stellung der Beschlaganordnung ein jeweiliges Zustandssignal, insbesondere an eine Alarmvorrichtung, auszugeben.
Abstract:
A door opener for opening a door having an external surface comprises a screw mounted for rotary motion and a carriage mounted on the screw such that rotation of the screw causes motion of the carriage along the screw. A motor rotates the screw. An actuator arm has a first end and a second end, where the actuator arm is operatively connected to the carriage such that movement of the carriage causes the actuator arm to move between a retracted position where the door is closed and an extended position where the door is open. The first end of the actuator arm is in contact with but not connected to the external surface of the door such that the first end of the actuator arm rides over the external surface of the door.
Abstract:
A drive mechanism is provided for a door operator, comprising a drive member and a driven member. The drive member includes a protrusion, the edges of the protrusion forming first and second driving surfaces which define a free space of at least about 90° there between. The driven member includes a protrusion, the sides of the protrusion form a first and a second driven surface, respectively. The drive member is adapted to be operably connected to between a motor assembly for rotating the drive member and a door closer assembly rotating with the driven member. The drive member and the driven member are disposed for relative rotation in substantially the same plane such that the driven member protrusion moves in the free space defined by the driving surfaces of the drive member protrusion. Rotation of the drive member from a first angular orientation to a second angular orientation in a direction toward an adjacent driven surface causes rotation of the driven member for powered opening of the door from the closed position to the open position. The driven member protrusion moves in the free space without engaging the protrusion surfaces when the door is opened manually from the closed position and allowed to close.
Abstract:
A worm gear drive operator having immovable flat thrust bearing surfaces at each end of a worm gear drive for absorbing thrust forces and keeping direct mechanical rotational forces away from the cover plate and housing base during rotation of the worm gear drive. The worm gear drive operator assembly is capable of vertical adjustment of the actuator arm while providing thrust support. A threaded post about which rests a bearing for the actuator arm, and is secured in place by an adjustment screw received within a threaded post on the cover plate.
Abstract:
A lift gate apparatus for a truck or trailer body is provided that includes a platform and a drive mechanism operable to pivot the platform between a stowed position and a deployed position, and vertically move the platform from a bed-level position and a lower than bed-level position. In some embodiments, the drive mechanism utilizes a pneumatic motor to power one or both of a pivot drive and a lift drive. In some embodiments, the drive mechanism utilizes one or more pneumatic cylinders within the pivot drive or lift drive. In some embodiments, one or more pneumatic cylinders are arranged to both pivot the platform and vertically lift the platform, thereby combining the functionality of the pivot drive and the lift drive. The emergency brake system of the truck or trailer body can be used as a source of compressed air to power the pneumatic motor and/or cylinders.
Abstract:
Disclosed is a mechanism to open and close windows and to automatically close doors. A roller car (9) is operated along the centre line of a primary slide track (4) causing a roller (7), affixed to the roller car (9), to exert force upon one or the other side of a slot (8) in the operating member (1) which is pivotally affixed to the primary slide track (4) at one end, to operate a secondary slide track (6) through a pivotally mounted slide (5) on the outer end of the operating member (1). The centre line of the primary slide track (4) and the centre line of the slot (8) in the operating member (1) cross each other at a substantially constant acute angle (13). When the roller car (9) is fitted with a spring which provides constant tension in a direction away from the operating member's (1) pivot point (2), it causes the closer to close automatically. The angle (13) may be varied to increase or decrease the speed and force of operation.
Abstract:
The invention provides an open-out mechanism which is intended for windows which can be opened out as a whole unit and which achieves, with straightforward design means and while maintaining satisfactory functioning and low costs, a largely parallel and rectilinear open-out movement of the window sash relative to the window frame, secure locking being realized in the closed position. The open-out mechanism comprises at least four open-out scissors-type arrangements (16) which act on the window sash and are fastened on the window frame, the open-out scissors-type arrangements having an open-out lever (24) and a control lever (26), which are each arranged essentially in one plane, and also comprises a drive for actuating the open-out mechanism, and is characterized in that the open-out lever (24) connects the window sash and window frame to one another and is mounted at least rotatably at a first end (36) and rotatably and displaceably at a second end (40), the control lever (26) is coupled rotatably to the open-out lever (34) and, at one end (28), is connected to the window frame, and the open-out scissors-type arrangements are coupled rotatably to a drive lever (62), by means of which the open-out scissors-type arrangements can be driven and locked.
Abstract:
A child safety device for a casement window includes a handle-driven gear reduction assembly having a sensor gear driven at a reduced speed relative to the handle, a sensor arm driven by the sensor gear of the gear reduction assembly and a slider movable between a stop position where rotation of the handle is prevented and a retracted position where rotation is allowed. A spring biases the slider towards the stop position. The slider is held in the retracted position by a catch and is released by the sensor arm to prevent further opening of the window when the sensor gear reaches a predetermined location. The safety device resets when the window is closed and can be overridden to allow full opening of the window by an adult. In the preferred design, the child safety device is a cover that can replace the cover of an existing casement window operator.
Abstract:
A parallel hinge (1) comprising a first and second parallel tracks (3, 4) for mounting the hinge (1) to a vent. The first track (3) is for attaching to a fixed frame 5 of the vent and the second track (4) is for attaching to an opening member of the vent. A cross member comprising a pair of diagonally crossing links (7) pivotally connected to each track (3, 4) and to each other at a central pivot (9). A drive mechanism (10) is mounted to the track (4) attached to the opening member for moving the vent between open and closed positions. The drive mechanism (10) comprises a gear assembly (16) operably coupled between a longitudinally extending drive rack (18) which engages the shoe (12) of the track (4) mounted to the opening member, and an actuating member (20). The actuating member drives the gear assembly (16), which drives the drive rack (18) and in turn the shoe (12) for opening or closing the hinge/window.
Abstract:
A drive mechanism is provided for a door operator, comprising a drive member and a driven member. The drive member includes a protrusion, the edges of the protrusion forming first and second driving surfaces which define a free space of at least about 90° there between. The driven member includes a protrusion, the sides of the protrusion form a first and a second driven surface, respectively. The drive member is adapted to be operably connected to between a motor assembly for rotating the drive member and a door closer assembly rotating with the driven member. The drive member and the driven member are disposed for relative rotation in substantially the same plane such that the driven member protrusion moves in the free space defined by the driving surfaces of the drive member protrusion. Rotation of the drive member from a first angular orientation to a second angular orientation in a direction toward an adjacent driven surface causes rotation of the driven member for powered opening of the door from the closed position to the open position. The driven member protrusion moves in the free space without engaging the protrusion surfaces when the door is opened manually from the closed position and allowed to close.