Abstract:
The invention relates to a method for controlled braking of an electrically powered lifting action in the event of a failure, such that at least one of the nominal values for “rotational direction” and/or “operating speed” and/or “door position” and/or “motor capacity” and/or “motor current” is ascertained and compared with an actual value, and such that a motorized braking process or motorized stopping process is triggered by a departure of the actual value from the nominal value that lies outside a predetermined range. In addition the invention relates to a device for applying said method.
Abstract:
A door actuating system has a fractional horsepower motor mounted on the door adjacent its free edge, driving a clutch connected to a duplex capstan pulley that is wrapped by two tensioned flexible static lines, for opening/closing movement ‘along the line’. The motor also drives a gear that engages a rack projecting from the door frame, to displace the door relative to its frame. Rotation of the gear is read by a rotary encoder, which feeds a microprocessor, to continuously monitor the location, speed and direction of motion of the door, for both the ‘on’ and the ‘off’ condition of the electric motor. A latching clip over-rides action of the original door latch.
Abstract:
The invention relates to an electomagnetic frictionally engaged clutch (1) provided with a rotor part (4) comprising a friction lining (2). An electrical coil (6) and a first permanent magnet (14) are arranged on the rotor part (4). Said clutch also comprises an armature disk (10) which is connected to a second shaft (9) and can be displaced in a rotationally fixed manner, but axially from a coupled end position to an uncoupled end position. The aim of the invention is to enahle the coil (6) of the clutch (1) to be current-free both in the coupled state and in the uncoupled state. To this end, means (15; 20) are provided for exerting an axial force opposing the magnetic force of the first permanent magnet (14) on the armature disk (10). The first permanent magnet (14) and the means (15; 20) are selected in such a way that the resulting force exerted on the armature disk by the permanent magnets and the means presses the armature disk (10) against the friction lining (2) of the rotor part (4) when a current is not passing through the coil (6), when the armature disk (10) is in the coupled end position thereof and when the armature disk (10) presses against an abutment (19) at an axial distance from the friction lining (2) of the rotor part (4) when it is in the uncoupled end position thereof. The electrical coil (6) can be supplied with a coil in such a way that the magnetic field thus produced
Abstract:
There is disclosed an engaging/disengaging fail-safe door closing device for a rolling fire door, provided between a power device and a speed reducing device of a door machine, including an electromagnet fixed inside a housing of the door machine and disposed around the outside of a shaft of the power device; a brake device including a shaft sleeve, loosely embracing around the outside of the shaft of the power device and being capable of sliding between the shaft and the electromagnet, on one end of which, there is provided an attracted plate facing the magnet and coming off the magnet by way of the biasing force of an elastic element, while on the other end there is radially formed a brake disk; a driving plate fixed on the shaft of the power device and facing a position where the brake disk is allowed to contact; and a circuit used to control the electromagnet to be electrified to excite in order for actuating the brake when the door reaches a predetermined position, or to release the brake when the power is cut off.
Abstract:
The present invention provides an automatic door control system that includes a door, a control module assembly, and a drive train assembly. The control module assembly is coupled to the door. The drive train assembly is coupled to the control module assembly, where the drive train assembly is configured to receive a signal from the control module assembly to easily move the door, where the drive train assembly exerts a force to move the door.
Abstract:
A drive arrangement is provided for motorized pivotal movement of a vehicle door. The drive has a self-locking motor unit, a gear connected downstream of the motor unit for producing linear drive movement, and a clutch connected therebetween. The clutch can be moved into an engaged state in which the motor unit for nominal operation is engaged to the vehicle door. When the motor unit is turned off, manual movement of the vehicle door is blocked. The clutch can be moved into a released state in which the motor unit is separated from the vehicle door in terms of drive engineering. The clutch can be moved into the intermediate engaged state with reduced transmission moment and force so that the vehicle door is kept in its current position at any time by self-locking of the motor unit, but can be moved by manual actuation with a minimum actuation force.
Abstract:
An opening and closing apparatus for an opening and closing body of a vehicle. The opening and closing apparatus includes a reciprocating member connected at its connecting portion to a motor so as to be moved to reciprocate along a plane perpendicular to a hinge shaft, the reciprocating member having a side surface parallel with the plane perpendicular to the hinge shaft. A connecting member is provided having a first end section pivotally attached to an end portion of the reciprocating member, and a second end section fixed to the opening and closing body. A deflection-suppressing device is provided to a stationary body connected to the vehicle body. A part of the side surface of the reciprocating member is slidably contacted with the deflection-suppressing device and is located between the connecting portion of the reciprocating member and the connecting member.
Abstract:
The present invention provides an automatic door control system that includes a door, a control module assembly, and a drive train assembly. The control module assembly is coupled to the door. The drive train assembly is coupled to the control module assembly, where the drive train assembly is configured to receive a signal from the control module assembly to easily move the door, where the drive train assembly exerts a force to move the door.
Abstract:
An unlock mechanism for a rotary door operator of a transit vehicle includes a pivotally disposed unlock member adapted for rotating a lock member into an unlock position and activating a valve for discharging the fluid pressure from the drive cylinder to enable manual opening of the door. A spring is provided for biasing the unlock member to a non-activated position. The unlock member may be activated either with a cable or a lever handle. A lock sensing switch provides a feedback on the lock condition to the transit vehicle control system. Additionally, a guiding bracket is provided for securing the cable in proximity of the unlock member.
Abstract:
An electric opening/closing device for vehicle, which has good layout characteristic of the vehicle and is provided with a highly-rigid attachment part, is provided. The vehicle electric opening/closing device comprises: a worm wheel meshed with a worm provided on a motor shaft of an electric motor; a planetary gear mechanism disposed coaxially with the worm wheel and decelerating rotation of the worm wheel to transmits it to an output gear; a gear case housing the worm wheel etc. and assembled to the electric motor; and a swing arm rotatably supported by the gear case between an output end linked to a back door and an input end linked to an output gear. An attachment plate for mounting the vehicle electric opening/closing device on the vehicle is sandwiched between the first case body and the second case body which constitute the gear case.