Abstract:
A separating device for a door leaf that is moveable overhead has a coupling element movable between a coupling position, in which the coupling element couples an output element of the drive device to the structural component, and a freewheeling position, in which the output element of the drive device is decoupled from the structural component. A locking member is provided which is movable between at least one release position, in which the locking member allows a movement of the coupling element into the freewheeling position, and at least one locking position, in which the locking member counteracts a movement of the coupling element into the freewheeling position. The locking member can be coupled to the drive device.
Abstract:
An integrated gas strut actuator strut assembly particularly adapted for providing power actuation of a motor vehicle lift gate or other opening closure. The system integrates the function of a counterbalancing gas spring and that of a electrically powered actuator. The system incorporates a strut assembly including a gas charged cylinder, and internal plunger and a threaded rod. Rotation of the threaded rod through a cable drive system causes the internal plunger to be advanced or retracted within the cylinder. Another feature of the invention are various embodiments of couplers between the gas cylinder plunger and rod and connectors for the assembly to the vehicle.
Abstract:
A retrofitable manual disconnect apparatus includes an output shaft engagement member (20) that couples to the output shaft (13) of a powered movable barrier operator (12), a movable barrier engagement member (14) that couples to a movable barrier (11), and a hand-operable engagement mechanism (40) that controls coupling between the above components. In one embodiment, the hand-operable engagement mechanism (40) includes a pivoting handle (44) that cooperates with a biasing member (43) to control the position of a movable pin (41). In particular, the movable pin (41) can be controllable inserted in or removed from a hole (24) in the output shaft engagement member (20) to facilitate an engaged and disengaged state, respectively.
Abstract:
A locking arrangement for a door system of a transit vehicle includes a combination of a lock mechanism and an electromagnetic brake. The lock mechanism enables positive locking of at least one door but does not require substantial contact between moving and stationary lock elements. The lock mechanism is connected with the manual release means for door opening during an emergency. The electromagnetic brake maintains door seal compression in the closed and locked condition which improves sealing capabilities and provides for reliable lock mechanism operation. Such combination provides locking redundancy and meets various requirements regarding annunciation and manual release operation.
Abstract:
A driving system for a garage door includes a track having an end fixed on an inside of a wall and has an open side that faces upward. A driving assembly is movably received in the track and driven by a motor. The driving assembly includes a connection member to which two ends of a power transferring member are connected. A U-shaped member is movably engaged with the track from an underside of the track and two sides of the U-shaped member are connected to the driving assembly. A link is pivotably connected between the U-shaped member and the garage door. The power transferring member reeves a gear which is rotatably connected to the track and the motor has a driving shaft which is conveniently extended through an opening of the track and engaged with an engaging hole of the gear.
Abstract:
The present invention relates to a door operating system for controlling the movement of a door, more particularly to “no touch” door openers for public washrooms and households. The system has a motor with a gear chain where the high gear is generally semicircularly shaped engaged with a swinging arm coupled with the door through the roller and a pilot plate. The unit is activated upon receipt of the signal from overhead passive infrared or hand proximity detecting sensors and has a controlling system to provide for opening and closing the door, as well as retraction of the arm in the event of door encountering an obstacle or in an overload condition of the motor. The arm and a gear are linked pivotally with each other and with the unit housing. They are coupled through a spring suspension system and have a clutch mechanism preventing overloading. The only external moving part is the arm, which is, along with geared sector, protected by a flexible member providing security to prevent accidental jamming of objects by it. The unit may be battery operated with a low voltage and low power AC/DC switching wall adapter. In autonomous operation it can provide up to 700 opening cycles without external power.
Abstract:
A pivot-action damper which for example dampens the impact effect of the closing movement of doors, furniture doors or flaps displays excellent braking force or damping force, even over small angular regions as a result of an outer cylindrical body which encompasses an inner body which is pivotable in relation to said outer cylindrical body. Between the two bodies there are two chambers, separated from each other by a gap or a throttle position, with said chambers containing a liquid. This liquid is displaced from one chamber to the other as a result of the rotation of the two bodies in relation to each other.
Abstract:
A trolley member for a garage door opener, comprises a trolley body (2), a connecting rod (7), a gear shaft (3) disposed on the trolley body (2), a rack (5) disposed on the trolley body (2), a gear (9) disposed on the gear shaft (3). The teeth of the gear (9) is engaged with the teeth of the rack (5). The rack (5) is connected to a spring device. The rack (5) has two working status. A first working status is that the rack (5) is inserted into a slot (10) of a chain link (8) and the spring member urges the rack (5) to the first working status, and a second working status is that the rack (5) is detached from the slot (10). The rack (5) is always urged to the first working status by the spring device, thereby the motor can reliably drive the chain and then the trolley member moving, and the chain can not be idling.
Abstract:
The present invention relates to automatic door assemblies and swing operators therefor. One aspect of the invention provides a swing door operator that has an opening in the housing thereof for easy access to the operator motor. Another aspect of the invention provides a method for servicing a door operator. Another aspect of the invention provides a door operator with a spring force adjusting member that moves in the generally longitudinal direction of the spring structure. Another aspect of the invention provides a method for adjusting the spring force of the spring structure in a door operator. Another aspect of the invention provides a swing door operator with an adjustable stop member.
Abstract:
A linear actuator for gates, doors or similar has an actuator arm (1) which is articulated to a support (3) around a vertical axis (15) and be raisable angularly around a horizontal inclination axis (16). The actuator arm (1) has a screw (7) which is operated by an electric motor (11) and a running nutscrew (8) articulated to the gate wing (5) by a leadnut holder (18) in which the nutscrew (8) is housed in a manner turning around an axis horizontal and transversal to the actuator arm (1). The leadnut holder (18) has a vertical lower articulation pivot (20) which engages from above in a turning manner in a bush (22) fastened to the wing (5). In an emergency the actuator is disengaged from the gate wing (5) by raising the actuator arm (1) angularly around its inclination axis (16) and extracting upward the articulation pivot (20) of the leadnut holder (18) from the bush (22).