Abstract: The invention relates to an arrangement for releasing the operating brake of an elevator in an emergency situation and for driving an elevator car of the elevator to a floor level, comprising at least one electric operating brake of the elevator as well as a brake release lever, which brake release lever is connected with the brake via a mechanical transmission means, which arrangement further comprises an overspeed governor connected with a gripping device of the elevator car. According to the invention in between the brake release lever and the brake a coupling device is arranged, which coupling device is controlled by the overspeed governor. Via this means the car velocity is controlled also during release of trapped passengers.

Abstract: A device for activating and deactivating a safety apparatus of an elevator car during assembly of an elevator installation includes an actuating element for attachment to the elevator car cage, wherein the actuating element in a first position P1 activates the safety apparatus and can be brought by an engineer into a second position P2 in which it does not exert any action on the safety apparatus.

Abstract: An apparatus and method for performing a load test in an elevator installation having an elevator car and a counterweight, which are connected to one another by a supporting device, and a drive brake for halting the elevator car during a downwards journey. The apparatus has a connecting element for fastening to the counterweight, an element with spring properties and a tensioning device for installation in the elevator installation. One point of the tensioning means is fixed to a stationary point of the elevator installation via the element with spring properties. Another point of the tensioning means is connected to the counterweight via the connecting element, wherein the tensioning device includes an actuating device with which to tension the element with spring properties in order to thereby exert a downwardly directed tensile stress on the counterweight.

Abstract: An elevator control system includes a control power supply, a computing core in communication with the control power supply, a communication power supply in communication with the computing core, and a sleep monitor in communication with the control power supply, the computing core, and the communication power supply. The sleep monitor is disposed to selectively turn on/off the control power supply and the computing core, and the sleep monitor is disposed to selectively change an operating state of the communication power supply to a low voltage state.

Abstract: In an elevator installation an elevator cage is arranged to be movable along guide rails and the elevator cage is equipped with a brake system possibly with two safety brakes. The safety device is activated by way of control devices which can trigger the safety device from critical or non-critical events. The control devices further include a function for automatic resetting of the safety brake when an event, which is evaluated as non-critical, is indicated as a reason for triggering the safety brake. Resetting of the safety brake takes place through execution of pre-defined resetting steps of the elevator cage.

Abstract: An elevator car includes a foldable handrail mounted on top of the car. Safety switches are associated with the foldable handrail including a first safety switch and a second safety switch. The first safety switch is closed only when the handrail is folded in a fully retracted position. The second safety switch is closed when the handrail is unfolded in a fully deployed position. A safety chain is associated with the first and second safety switches for supplying power to an elevator drive system in a normal operation or an inspection operation depending on the state of the first and second safety switches.

Abstract: An assembly (30) controls the amount of downward movement of a counterweight (24) within an elevator system (20). By limiting the downward movement of the counterweight (24), a desired overhead clearance above an elevator car (22) can be maintained. One example includes at least one safety device (80, 84, 86, 88) on top of the elevator car (22) to provide an indication for when a holding member (34) should allow a stop member of the assembly (30) to move into a position to limit the downward movement of the counterweight (24). In one example, the stop member (32) moves into an employed position by the force of gravity and is manually moveable back into a retracted position when it is not needed. One example includes a guide member (60) that facilitates controlling the position of the stop member (32) when it is in the employed position.

Abstract: An electric safety switch (3) resetting device (1) for the car safety device (5) of elevators includes a switch (3) shaped as a box attached to the lower skirt (9) of the car frame, near the car safety blocks (11). A mobile upper tongue (13) is engaged with a car safety block triggering lever (15), which tongue (13) can trigger the switch (3) under the action of said triggering lever (15) and reset it in the opposite direction when operated by the maintenance operator. A connecting rod arrangement (29) hinged to the tongue (13) can be remotely actuated by the operator using an actuator (35) while standing at the landing opening near the arrested elevator car, to drive said tongue (13) to a position that will reset the switch (3).

Abstract: Disclosed is a fire escape device which can be controlled wirelessly. The device comprises a rope winding unit having a rope, a carrying unit fixed to one end of the rope, a main control unit fixed onto a building, through which the rope is connected to the man-carrying unit so as to control a descent process of the carrying unit, and at least one wireless remote control capable of communicating with the main control unit and operating the same.

Abstract: A rescue braking system provides a smoother elevator car movement by mechanically lifting or applying the brake. The rescue braking system incrementally adjusts the force applied to the brake based on the speed and location of the elevator car. Therefore, it can effectively eliminate the jerky vibration and noises caused by the fully on-off brake systems and make the passengers feel more comfortable when the elevator car drifts to the nearest floor door.

Abstract: An emergency escape apparatus for elevator is disclosed. In response to power outage manually pulling an actuation rope will pivot a pivot bar counterclockwise to rotate front and rear cams, press front and rear cams onto front and rear actuation members respectively, lower a pinion to be in mesh with a gear on a front of a drive sheave, press pressing rollers onto hoist ropes, activate a bar member to deactivate a brake, close a switch, and activate a backup motor to turn the pinion and the drive sheave through the gear, thereby lowering a car until a safe floor is reached. In another operation speeding the car will automatically enable an electromagnetic actuator to pull the actuation rope and activate a main motor to lower the car.

Abstract: An emergency moving device of an elevator includes a reduction gear, several first gears coupled to a shaft of the reduction gear, a first connector releasably coupled to the car, a second connector affixed to the car and releasably coupled to the first connector, a fall-prevention device releasably coupling the first connector to the second connector, and chains respectively connected to the first connector and engaging the first gears. The first connector is coupled to the steel ropes used for vertically displacing the elevator car. When the car is stopped between floors by a power failure, the passengers press an emergency button to uncouple the first connector from the second connector, so that the car is allowed to move downwardly relative to the first connector until it arrives at a next floor with the reduction gear reducing speed of the car.

Abstract: An elevator car (1) includes, a support frame (8) of a cable-driven elevator system without a machine room, with a compact driving pulley driving machine (7), combine with a brake, integrated in this car (1) and/or its support frame (8). This is to provide an elevator car which can be preassembled outside of an elevator shaft as a unit ready to be installed, with as many functional parts as possible. To this end, the elevator car (1) has the following feathers: the driving machine (7) is equipped with a permanent magnet-excited synchronous motor as the driving source; the operating electronics of the driving machine and the control electronics required for the operation of the entire elevator system from a common, interactive functional unit in the form of an electronic central unit (10); and the electronic central unit (10) is permanently connected to the elevator car and/or its support frame.

Abstract: A method and equipment is provided to allow a stuck elevator lift cage to be moved in situations when the lift cage and passengers is in weight equalization with the lift counterweight. With the lift's safety brake dis-engaged and the lift drive unactuated, the drive brake is released and an additional force is applied to the lift cage from a source external to the lift drive to move the lift cage to a position for passenger evacuation. The additional force may be applied through a cable pull connected to the limiter cable of the elevator's speed monitor system.

Abstract: An escape device of elevator. The device includes an activation assembly comprising sheaves, rope, links, flexible board, roller, guide, limit member, bar, and catch; and an operation assembly comprising sheaves, ropes, links rotating disk, weight, cylinder having a wall aperture, and spring depressible shaft. In case of emergency a manual rotation of the sheave will cause the shaft to remove a support to the weight in the cylinder by retracting from the aperture. Hence, the weight begins to fall to pull the rope. Eventually, an elevator door is opened automatically. The invention can also be configured to facilitate an operation by the handicapped.

Abstract: The invention provides an elevator cab equipped with an emergency medical device, such as an automated external defibrillator (AED). The elevator cab equipped with the emergency medical device may be controlled in order to deliver the emergency medical device to a floor of a building on which an emergency medical situation occurred. In response to emergency medical input identifying the emergency medical situation, an elevator control unit overrides regular operation of the elevator cab in response to receiving emergency medical input, and directs the elevator cab to a floor on which an emergency medical situation occurs. For example, the elevator control unit may cancel active floor calls made by passengers within the elevator cab or individuals on one or more floors of the building and direct the elevator cab to the floor of the emergency situation.

Abstract: An emergency moving device of an elevator includes a reduction gear fixed on top of the car, several first gears coupled to a shaft of the reduction gear, a first connector releasably coupled to the car, a second connector affixed to the car and releasably coupled to the first connector, a fall-prevention device releasably coupling the first connector to the second connector, and chains respectively connected to the first connector and engaging the first gears; the first connector is coupled to steel ropes of the elevator used for vertically displacing the car member; when the car is stopped between floors by a power failure, the passengers press an emergency button to make the fall-prevention device uncouple the first connector from the second connector so that the car is allowed to move down relative to the first connector until it arrives at a next floor with the reduction gear reducing speed of the car.

Abstract: An emergency drive is a toothed element such as a gear rim, is arranged on a traction sheave of an elevator drive. During emergency operation, the gear rim is driven by means of a pinion of an auxiliary engine. The engine is installed on the elevator drive only during an emergency operation. After emergency operation, the engine is removed from the drive unit. The gear rim may be composed of several layers of interlocked segments. The layers are mutually shifted in a circumferential direction. Each segment consists of laminated/interlocked sheet metal segments, which are, as mass-produced goods, cheaply producible through cutting and punching procedures.

Abstract: An auxiliary device for displacing a payload receptacle, which stands outside a station, into one of the stations. The auxiliary device includes a temporarily activatable brake release device for releasing the braking device and an auxiliary drive device for displacing the payload receptacle when the brake release device is activated. The brake release device and the auxiliary drive device are arranged in the uppermost region of the elevator shaft and are actuable by way of a crank rod linkage. The crank rod linkage includes a lower actuating end, which can be brought from a rest setting into a working setting. The crank rod linkage is coupled with a rod linkage extension, the vertical effective length of which corresponds with at least the vertical spacing of the walk areas of two adjacent stations.

Abstract: An emergency drive system for elevators allows manual raising and lowering of the elevator in an emergency condition when an emergency brake has been applied to a rotating member of the elevator drive system. A linkage element is pivotally mounted to the brake, and carries a manual drive member having a drag bearing and a pair of guide rollers. A drive line passes about the drive member, guide rollers and a hand crank. Operation of the hand crank creates a tensional imbalance in the drive line, pivots the linkage member to engage the manual drive member with the rotary member. The increased drag to crank rotation resulting from the engagement causes the linkage element to pivot about the manual drive member, backing the brake away from the rotating member and allowing the rotating member to be turned by the manual drive member. The device is self-regulating, permitting only sufficient release of the brake to cause a slow rotation of the rotating member and the elevator car motion.

Abstract: A manual brake release control structure having a linking member cooperates with an escape and protection mechanism for an elevator to protect an emergently braked elevator cab against inertial slip during brake release. By pulling an escape pulling cable outside the cab with a normal force, the braked cab is released to move and rotate a rotary shaft of a driving motor of the elevator. The rotary shaft in rotating causes a cam connected thereto to rotate and thereby reciprocates the linking member up and down that in turn causes an actuating arm and a flexible long member to repeatedly release and depress a braking device of the elevator, so that the cab is intermittently braked and released to move upward or downward at a reduced safety speed.

Abstract: An improved top of car inspection station includes warning circuit for providing a warning signal whenever the elevator car is in the inspection mode and the emergency stop switch is deactivated and the mechanic is not commanding the car to move.

Abstract: An emergency lifting or lowering device of an elevator includes a transmission toothed wheel fitted to a top of a passage receiving a carriage of the elevator. The transmission wheel has teeth locking into an adjacent one of several toothed wheels arranged in a low. The toothed wheels are each associated with a reeling member having first end portions of steel ropes of the elevator wound therearound. The emergency lifting or lowering device further has an emergency switch disposed in the carriage member, and electrically connected to an emergency power to activate the transmission wheel in order to lift or lower the carriage member to a nearest floor when a main motor of the elevator stops due to power failure.

Abstract: An emergency lifting or lowering device of an elevator includes a transmission toothed wheel fitted to a top of a passage receiving a carriage of the elevator. The transmission wheel has teeth locking into an adjacent one of several toothed wheels arranged in a low. The toothed wheels are each associated with a reeling member having first end portions of steel ropes of the elevator wound therearound. The emergency lifting or lowering device further has an emergency switch disposed in the carriage member, and electrically connected to an emergency power to activate the transmission wheel in order to lift or lower the carriage member to a nearest floor when a main motor of the elevator stops due to power failure.

Abstract: An elevator emergency escape device is disclosed. When the elevator breaks down by a mechanical failure, a power outage, an earth quake or a fire, the elevator passengers are informed by a voice message and then the windows is opened. After one passenger pulls down the controlling cable via the window, the brake will be released by the back-up power supply. So, the elevator cab will be aligned with a closest floor. This elevator cab not only can be moved by an electrical system but also by a manual operation. The elevator cab further comprises a voice device for providing the voice message, braille for blind persons, and a lifting activator for handicapped persons. And, an emergency button with a protective cover is disposed so as to allow one can break the protective cover to press down the emergency button so that the elevator cab's door will be aligned with a closest floor and then opened. When it is on fire, the elevator cab will be moved to a preset emergency escape floor for escape.

Abstract: A method and equipment is provided to allow a stuck elevator lift cage to be moved in situations when the lift cage and passengers is in weight equalization with the lift counterweight. With the lift's safety brake disengaged and the lift drive unactuated, the drive brake is released and an additional force is applied to the lift cage from a source external to the lift drive to move the lift cage to a position for passenger evacuation. The additional force may be applied through a cable pull connected to the limiter cable of the elevator's speed monitor system.

Abstract: An apparatus for moving an object, such as a wheelchair, between an upper position and a lower position. The upper position is typically adjacent to the floor surface of a vehicle while the lower position is typically at ground level. The apparatus preferably includes a platform including at least three pivotally connected sections. The sections are selectively moveable between an unfolded orientation in which the sections are substantially co-planar and a folded orientation in which the sections form a compact configuration. The apparatus also preferably includes a folding assembly for selectively moving the sections of the platform between the folded orientation and the unfolded orientation, a deployment assembly for selectively deploying and stowing the platform and a lift assembly for selectively moving the platform vertically between the upper position and the lower position.

Abstract: A descent device includes a load carrier, a winder unit with a coil of cable for suspending the load carrier in mid-air so as to raise or lower the load carrier, and a retarding unit for impeding downward movement of the load carrier so that the load carrier can move downward at a lower speed to ensure safety of the occupants.