A hinge device for supporting an electronic device includes a first portion and a second portion movable relative to the first portion with a biasing element supported by one or the first portion or the second portion. The first portion has an arcuate groove, and the second portion has an arcuate rail configured to complementarily mate with the arcuate groove and slide therein. The biasing element contacts a leading edge of the other of the first portion or second portion, and the first portion and second portion are bistable in a closed state relative to one another and an open state relative to one another based at least partially on a surface profile of the biasing element applying a radial force to the leading edge.

Vehicle barrier systems that can selectively move a barrier arm between a first position that prevents a vehicle from passing, or a second position that allows the vehicle to pass, wherein the barrier arm moves both upwardly away from a travel path and laterally along the travel path in a direction away from the vehicle. The barrier arm movement thereby leads the driver of the vehicle through the barrier system in a sweeping or leading movement. In some embodiments, an actuator assembly of the barrier system includes a breakaway assembly coupled to the barrier arm. In the event that an abnormal force (e.g. vehicle strike, vandalism, etc.) applied to the barrier arm exceeds a predetermined threshold, one or more drive magnets of the breakaway assembly disengage from the one or more magnetically-attractive elements to prevent damage to the barrier system.

The present disclosure relates to a recessed pivot hinge for hingeably fastening a door leaf in a door frame, including a pivot; a fitting sleeve in which the pivot is fitted in a height-adjustable manner; a socket which is fastenable in a recessed manner in the door frame or forms part thereof; and a fastening body, to be recessed into the door leaf, for fastening in the door leaf;
wherein provision is made for an end of the pivot to be drawn into the socket using magnetic elements of the pivot and the socket; and where the fitting sleeve is fastened in the fastening body so as to be adjustably displaceable in a first direction (X), transverse to the height direction (Z), and in a second direction (Y), transverse to the first direction (X) and transverse to the height direction (Z).

A vehicle door checker integrated with a power drive unit for an automobile door includes a direct current permanent magnet electric motor subject to cogging torque. The electric motor includes a central shaft. The vehicle door checker also includes a cogging torque increase device that is mounted to the central shaft externally of the motor. The cogging torque increase device includes pairs of oppositely magnetized permanent magnets that are mounted coaxially in a stator and rotor respectively about the motor shaft. The stator magnets and the rotor magnets shift into and out of alignment with each other as the shaft is rotated such that the motor is held in multiple discrete stable positions that correspond to check positions of an automobile door.

A safety system for an automatic door including an ultrasonic sensor installed in a rotary frame to detect motion of the rotary frame in order to stop operation of an automatic door in order to prevent injury from the door.

A damping or return device for sliding door leaves or drawers, particularly for furniture, is provided. The device has a first trolley, which is associated with a door leaf and is slideable with respect to an item of furniture, by a diametrically differently-polarized magnet, which is associated with the first trolley or with the item of furniture, and by at least one steel plate, which is associated with the item of furniture or with the first trolley. The first trolley interacts selectively with at least one elastically compressible element which abuts, in opening and in closing, with an abutment element which is associated with and protrudes from the item of furniture.

A device for moving folding door leaves that open completely and are adapted for wardrobes or pieces of furniture in general include a single door leaf or one pair of door leaves hinged to each other, configured to be rotated from a completely closed configuration to a completely open configuration. The door leaves include a guiding device, the action of which is damped during the opening and closing movement by magnetic devices and damping systems that counteract their attraction force.

A linear stem (3) guides a sliding door (11), which is dragged by a magnetic drive unit between an operating position (W), in which it covers and closes an access mouth (20) to an internal compartment (21) of a sterilizer (1), and an inoperative or opening (N), in which the door (11) moves to a position next to the access mouth (20), thus making it accessible from the outside.

The sliding door (11) is operated by movement members (5), comprising a linear module (50), adapted to house a transmission belt (52) stretched between two return wheels (53), one of which is driven by an electric gearmotor (54); a branch of the transmission belt (52) carries a slider (55) with a permanent magnet (56), facing a magnetic plate (6) fixed to the sliding door (11) which is dragged by the magnetic field generated by the cursor (55) in motion.

Door assemblies, aircraft including door assemblies, and method for making door assemblies are provided. In one example, a door assembly includes a hinge subassembly and a door pivotally coupled to the hinge subassembly. The door has a channel disposed therein with a holding member disposed proximate a channel distal portion. A sliding member is movably disposed in the channel. An arm has a first portion pivotally coupled to a second hinge subassembly and a second portion pivotally coupled to the sliding member to move the sliding member as the door moves between a closed position and an open position. A stay member is coupled to the sliding member to move towards the holding member which holds the stay member in position when the door is moved to the open position to hold the door open.

A vehicle barrier gate system which is positioned above a roadway through which vehicles pass. Some of the various embodiments of the present disclosure include a gate comprised of an arm and barrier which is adjustable between a raised position in which a vehicle may pass and a lowered position in which a vehicle is prevented from passing. The gate may be movably connected to a ceiling or an overhead support structure positioned above the roadway. Various types of actuators may be utilized to adjust the gate along a linear and/or angular path between the raised and lowered positions. A control unit may be in communication with one or more sensors and/or an authorization system to control the actuator. The gate may include a breakaway mechanism which allows the gate to be manually raised or lowered in the event of actuator failure or a vehicle ramming through the gate.