Abstract:
A door operator with an electrical back check feature is disclosed. Embodiments of the present invention are realized by a motorized door operator that electrically creates a back check force for an opening door. The door operator simulates the back check normally created by hydraulic means in convention door closers, but without the use of pistons, springs or hydraulic fluid. The door operator includes a motor disposed to operatively connect to a door so that the door will open when the motor moves, and a position sensor to determine a position of the door. A processor is programmed to exert a closing force on the door in the back check region. In some embodiments, the closing force is exerted by injecting a voltage into the electric motor of the door operator.
Abstract:
The carriage provided to hold a displaceable separation element comprises a carriage body provided with at least two running wheels, which carriage body is connected to a carrier profile, which serves to carry the separation element. According to the invention the threaded shank of an adjusting screw is rotationally held in the carriage body, which adjusting screw comprises below the screw head a flange ring, which supports a flange element provided in the carrier profile, which flange element comprises an opening, through which the screw head is guided. By rotating the adjusting screw the carrier profile can thus be optionally adjusted in height. In a preferred embodiment a tool channel is provided in the carrier profile, into which tool channel a conventional tool can be introduced.
Abstract:
A hand-pulling drive mechanism for an industrial door is installed on a motor end cover of the motor. The mechanism includes a hand drive device to operate manually and a shaft connected with the hand drive device. The mechanism farther includes a gear pair to change an engagement state and a disengagement state, a rotation propelling device connected with the shaft, and an eccentric pulling device including a shaft pin placed on the shaft and a torsion jacket pivotally connected to the shaft and rotated relative to the shaft pin. The gear pair includes a drive gear sleeved on the shaft for switching between the two states, and a follower gear secured to a motor shaft. The rotation propelling device is moveably connected with the drive gear. The torsion jacket and the drive gear jointly move to pull the torsion jacket through eccentric rotation of the shaft pin when the shaft is rotated, so that the drive gear moves in an axial direction and the follower drive engages with and disengages from the drive gear.
Abstract:
The carriage provided to hold a displaceable separation element comprises a carriage body provided with at least two running wheels, which carriage body is connected to a carrier profile, which serves to carry the separation element. According to the invention the threaded shank of an adjusting screw is rotationally held in the carriage body, which adjusting screw comprises below the screw head a flange ring, which supports a flange element provided in the carrier profile, which flange element comprises an opening, through which the screw head is guided. By rotating the adjusting screw the carrier profile can thus be optionally adjusted in height. In a preferred embodiment a tool channel is provided in the carrier profile, into which tool channel a conventional tool can be introduced.
Abstract:
A programmable automatic window including a hollow frame with an aperture disposed therethrough; a window slidably secured within the aperture of the frame; a ball screw mechanism disposed within the frame and coupled to the window; a motor coupled to the ball screw mechanism and energizable with a positive polarity to cause rotation of the ball screw mechanism for allowing the window to be raised and energizable with a negative polarity to cause opposite rotation of the ball screw mechanism for allowing the window to be lowered; and motor logic switch circuitry for controlling the motor.
Abstract:
According to particular embodiments, a door operating system comprises: a rotating handle removably coupled to a first gear; the first gear coupled to a second gear; the second gear removably coupled to a worm gear; and the worm gear coupled to a rotating plate. Rotation of the handle rotates the first gear which rotates the second gear which rotates the worm gear which rotates the rotating plate to cause the door to open or close. The first gear is swappable with the second gear to modify a gear ratio of the door operating system.
Abstract:
A hinge includes two rotatable axle units disposed on a base seat and each having two rotatable hinge shafts, two movable bracket units each including a base plate, two rotary blocks non-rotatably sleeved on the hinge shafts, and two movable plates movable relative to the rotary blocks, and two synchronizing units for making synchronous rotations of the hinge shafts. Each synchronizing unit includes a first gear member having two end surfaces in form of bevel gears, and two second gear members each meshing with the respective end surface and fitted to the respective rotary block. Rotations of the hinge shafts at one side of the base seat result in rotations of the rotary blocks and the second gear members, and bring in rotations of the second gear members, the rotary blocks and the hinge shafts at the other side to make the synchronous rotations.
Abstract:
Drive assemblies for partition systems may include a motor and a power transmission mechanism operably coupled to a drive shaft of the motor. The power transmission mechanism may include a first bevel gear rotatable by the drive shaft and a second bevel gear positioned for engagement with the first bevel gear. The second bevel gear may include an axis of rotation oriented at least substantially perpendicular to an axis of rotation of the first bevel gear. A disengagement mechanism may be coupled to at least one of the first bevel gear or the second bevel gear and configured to selectively engage and disengage the first bevel gear and the second bevel gear.
Abstract:
One embodiment relates to a door operator including an operator body including a rotatable pinion, an arm connected to the pinion, an inductive sensor mounted adjacent the arm, and a controller in communication with the inductive sensor. The inductive sensor includes an inductor comprising a plurality of nested coils, and each of the coils is curved about the pinion. The controller is configured to provide the inductive sensor with a varying power signal, and the inductive sensor is configured to inductively link the inductor to the arm in response to the varying power signal. The inductive sensor has a characteristic which varies in response to the rotational position of the arm when the inductor is inductively linked with the arm. The controller is further configured receive information relating to the characteristic, and to determine the rotational position of the arm based upon the received information.
Abstract:
A hand pulling drive mechanism includes a hand drive device and a shaft connected with the hand drive device. The mechanism further includes a gear pair, a rotation propelling device connected with the shaft, and an eccentric pulling device including a shaft pin placed on the shaft and a torsion jacket pivotally connected to the shaft and rotated relative to the shaft pin. The gear pair includes a drive gear sleeved on the shaft for switching, and a follower gear secured to a motor shaft. The rotation propelling device is connected with the drive gear. The torsion jacket and the drive gear pull the torsion jacket through eccentric rotation of the shaft pin when the shaft is rotated, so that the drive gear moves in an axial direction and the follower drive engages with and disengages from the drive gear.