Abstract: An elevator system includes an elevator car having a car door, a drive unit for moving the elevator car along an elevator shaft wall provided with shaft doors and a controller for controlling movement of the elevator car along the elevator shaft wall. A separate fault detecting device is mounted in a region of each of the shaft doors and in a region of the car door for generating fault information to controller. A status detecting unit generates to the controller status information about a position and a speed of the elevator car. In the case of a fault in the region of one of the shaft doors, the controller permits operation of the elevator car between those floors that can be reached by the elevator car without having to pass the floor at the shaft door where the fault has occurred.

Abstract: An arrangement and method for preventing unauthorized access of personnel into the hoistway of an elevator system. The arrangement includes a security device for mounting in the vicinity of an auxiliary release mechanism of a landing door to prevent actuation of the auxiliary release mechanism during normal operating conditions. The security device includes an energization circuit which, in use, is responsive to changes in operating conditions of the elevator system and may also include an obstruction member movable in response to the energization circuit between a first position preventing key access through a keyhole during normal operating conditions and a second position permitting access through the keyhole during abnormal operating conditions. Accordingly, a key can only be inserted through the keyhole to actuate an unlocking bit of the auxiliary release mechanism to release the landing doors during abnormal operating conditions.

Abstract: An elevator installation with at least one shaft having a plurality of shaft doors is provided. At least two cars disposed one above the other travel up and down in the shaft. Each car has at least one car door. A safety device is provided for blocking the travel of the cars when the shaft doors or car doors are open. The safety device has at least two independent safety circuits, each having at least one shaft door and/or car door associated with it. Travel of at least one car can be blocked by means of the safety circuits.

Abstract: A door panel comprises a surface board 11 facing a hoistway, a back board 12 facing a hoistway, and a reinforcing member 13 for reinforcing the surface board 11 and the back board 12 . The back board is connected to the surface board or the reinforcing member by a connecting member 15 which is capable of losing the force of constraint against the surface board or the reinforcing member on high temperature conditions during a fire. This connecting member 15 prevents the door panel of the elevator hall door from being deformed during a building fire, and prevents the elevator hall door from falling, thus preventing smoke and flame from entering the hoistway.

Abstract: An elevator shaft door frame incorporates a control arrangement for an elevator installation including a control unit. The control unit is fixed in a chamber of a frame element of the door frame. The chamber communicates with an outside opening in the door frame, which opens at a floor, and is closed with a cover. The cover can be moved from the closed position by demounting to a service position in which access to the chamber is free. In addition, the door frame has an inside opening to the chamber which is accessible from the elevator shaft.

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: Disclosed is a return mechanism for elevator escape device. The return mechanism mounted at a wall of a car and comprises a drive sheave, upper and lower secondary sheaves, a wheel coaxially disposed with the drive sheave and located on an inner wall of the car, a lever including a lower pivot end, a positioning bar, an upper end at the drive sheave, and a groove, a link having one end defined by the groove and a roller at the other end, a support for permitting the link to slide therethrough, a catch, and projecting return members. In a case of car failure, a trapped passenger is able to continuously rotate the wheel for escape in which the mechanism can automatically return to its original position by moving the link backward after the roller contacting the return member.

Abstract: A door panel includes a surface board facing a hoistway, a back board facing a hoistway, and a reinforcing member for reinforcing the surface board and the back board. The back board is connected to the surface board or the reinforcing member by a connecting member which is capable of losing the force of constraint against the surface board or the reinforcing member on high temperature conditions during a fire. This connecting member prevents the door panel of the elevator hall door from being deformed during a building fire, and prevents the elevator hall door from falling, thus preventing smoke and flame from entering the hoistway.

Abstract: Backup power device for an elevator comprises a brake including a brake controller and a manual brake rod, a damping assembly including a roller at one end of a lever, and a wheel having alternate recesses and risers, an electro-magnetic controller having a control rod, a pulley having a rope run through the manual brake rod and the control rod, an electro-magnetic brake actuator, and a backup power supply. A passenger trapped in the car can pull down the rope in case of the failure of the electro-magnetic controller, the electro-magnetic brake actuator, and the backup power supply as the lever turns to cause the roller to contact the recess or the riser. The lever moves intermittently to cause the manual brake rod to activate the brake controller for braking and releasing a motor shaft again in intervals. Eventually, the passenger can escape.

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 exit (5) formed in an elevator car (1) is closed by doors (8) of multi-construction including an inner door (6) and an outer door (7). Air is able to flow between a space between the inner door (6) and the outer door (7) and the space in the elevator car (1). The elevator car (1) can be sealed in an airtight state and can be isolated from external noise. Deformation of the decorative inner surface of the inner door (6) by pressure difference between the interior and the exterior of the elevator car (1) can be prevented.

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: According to the invention, the maintenance scaffold (10) is assembled as follows: in a first step, an illuminated ceiling, which lies below the collapsed maintenance scaffold (10), is taken down. Suspension members (17) are then brought into a vertical position. The platform (12) and flap (13) are lowered vertically until they reach the bearings (19) of the suspension members (17). Before mounting the platform (12), the maintenance personnel must unfold the ladder (18) and open the flap (13) upwards. Once the personnel has mounted the platform (12), the flap is closed (13) by means of a handle, in such a way that the entire platform can be used as a working scaffold. With the maintenance scaffold (10) in the working position, the height for a regulatory passage (U) is maintained, as determined by the distance between the cabin ceiling (14) and the platform (12).

Abstract: A service barrier for elevator equipment and a method for deploying the same, said barrier comprising a floor plate and a plurality of leaves hinged along vertical axes, said floor plate pivotally mounted in front of said elevator equipment and at least one of said plurality of hinged leaves mounted to a side of said elevator equipment, wherein the floor plate is pivotal from a stored position to a substantially horizontal extended position, and said plurality of hinged leaves fold out from a stored position between said stored floor plate and said elevator equipment to an extended position thereby establishing a space in front of said elevator equipment so as to permit maintenance work.

Abstract: An emergency unlocking device includes an unlocking lever actuated by an unlocking slide that is guided in a guide fastened to the inner side of the shaft door. The guide covers a passage that is formed in the shaft door for insertion of a tool for actuation of the unlocking slide so that in the case of a fire the flame cannot pass through the passage to the elevator shaft.

Abstract: A double-decker elevator includes a winch, an upper car, a lower car, a car support frame supporting the upper and lower car, a car space adjusting device capable of adjusting the space between the upper and lower car, and an emergency operation controller. When the car space adjusting device is unable to operate normally, the emergency operation controller operates the winch to move the car support frame such that the upper and lower car are located sequentially at positions corresponding to adjacent floors, respectively.

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 relates to a building elevator having an elevator mast, which can be set up vertically, and having an elevator car which can be moved in the vertical direction along the elevator mast and has a least one motor drive with control means, and said building elevator is intended to be developed further such that it is ensured, in the simplest possible manner, that it is not possible for any individual or objects to be situated beneath the elevator car during the downward travel of the elevator car.

Abstract: An emergency unlocking device includes an unlocking lever actuated by an unlocking slide that is guided in a guide fastened to the inner side of the shaft door. The guide covers a passage that is formed in the shaft door for insertion of a tool for actuation of the unlocking slide so that in the case of a fire the flame cannot pass through the passage to the elevator shaft.

Abstract: Apparatus for maintaining adequate overhead space for a worker located upon the roof of an elevator car having a drive mechanism that disengages under a given load. A brace is secured to the car and is capable of withstanding a compressive load that is greater than the disengagement load of the drive mechanism.

Abstract: An elevator emergency escape device is activated by mechanical failure, power outage, an earthquake, fire, etc. When the device is triggered by a passenger breaking a cover over an emergency button and pressing the button, the device plays a voice message that informs all the passengers of the situation. The brake is released, and the elevator cab is aligned with the nearest floor, unless the situation dictates a predetermined floor at a different level. The elevator cab can be moved by backup electrical systems, or by manual operation. The device includes the voice message, a braille system for blind passengers, and a lifting device for handicapped persons.

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: Improved apparatus for manually releasing and controlling an elevator hoist brake having a solenoid with a vertically-actuated, flanged plunger operable to drive the brake shoes apart in opposition to brake springs which normally urge the brake shoes into the locking position, said apparatus comprising a bar having one end insertable between said solenoid and the flange of said plunger and engageable therewith, a handle having an enlarged portion projecting downwardly adjacent the forward end which is pivotally secured to said bar at a point spaced from said one end of said bar, a lever pivotally attached to said bar and having a forward end located adjacent said one end of said bar and dimensioned to be insertable between said solenoid and said flange of said plunger and engageable therewith, a link member pivotally connected to said bar at a point spaced from the forward end of said link and from said one end of said bar and having said forward end of said link pivotally connected adjacent the rear end of s

Abstract: A controller for an elevator. The elevator includes a landing passageway where a car stops and passengers board or alight and a hoistway through which the car is raised or lowered. A control panel for controlling the raising, lowering, and stopping of the car is disposed in the hoistway at a position where the control panel does not interfere with the raising or lowering of the car, and a mechanism for drawing out the control panel to the landing passageway is provided. Accordingly, space in the hoistway is effectively used, and the landing passageway which passengers do not use during maintenance can be readily utilized for a maintenance operation.

Abstract: An automatic stop mechanism for a rolling door includes two brake members mounted to the stop member which is removably engaged with the fixture, the stop member having a flange disengagably contacting the inclined flange to normally stop the rolling door, a handle pivotally connected to the fixture and connected to the first member and the second member so as to shift the stop member along the shaft of the motor, the two brake members each having a brake pad and located within the motor casing, when the rolling door runs downwardly fast and the normal stop mechanism fails, the two brake members are expanded due to the eccentric force to stop the door by the two brake pads contacting the motor casing.

Abstract: A remote-operated elevator door safety control for holding open a door of an elevator from a remote location includes a transmitter remote from the elevator for selectively transmitting a door-open signal, a receiver at the elevator for receiving the door-open signal, and an actuator coupled with the receiver and responsive to the door-open signal to hold a door-operating mechanism in a door-open mode so as to hold the door open in response to reception of the door-open signal.

Abstract: An elevator door interlock includes a position indicator mounted at each landing, an elongate vane pivotally mounted in a fixed position with respect to the car door for movement between a first position, preferably several degrees rotated from perpendicular, and a second position, preferably generally perpendicular to the door surface, a swing latch including a latch arm secured at one end to the vane, preferably extending generally perpendicular to the vane, a contact plate secured to the end of the swing latch opposite the vane end, and a stop plate mounted in a fixed position with respect to the elevator car. The vane is preferably mounted on a spring-biased hinge, and is normally biased towards the first position such that the contact plate extends into the plane of the stop plate and contacts the stop plate to prevent further opening of the elevator door more than a limited distance when the door is opened unless the elevator car door is moved into a safe landing position within the hoistway.

Abstract: A simplified elevator car door lock assembly locks an elevator car door if the car is outside a landing zone and there is an attempt to open those doors. The car doors are connected to the hoistway doors by a pair of vanes mounted on the car door and a pair of rollers mounted on the hoistway door. A third vane is attached to the car door and follows a cam path on the car door to lock the car doors if the car is not in a landing zone. Conversely, the third vane senses if the car is in a landing zone and does not lock the car door if it is moved.

Abstract: The invention relates to a safety device for gates of lifts and elevators comprising a release device (4) which, when a door of the lift gate is closing and meets an obstruction, causing an excessive resistance to the movement thereof according to a prefixed resistance threshold value, releases the coasters (6) bearing the door from means for moving thereof such as to cause said coasters (6), and in consequence said door, to stop, while said means for moving said door remains activated. The release device (4) is a completely mechanical safety device.

Abstract: An elevator door evacuation deterrent device in combination with a moving vane elevator door coupler having a pair of coupler vanes pivotally connected by links to form a parallelogram movable between a compressed position, an expanded interlock position and a third expanded overtravel locking position when the elevator car is outside a landing zone. A top end from one of the vanes projects upwardly and abuts a locking plate on the elevator car to limit movement of the car door in the overtravel locking position when the car is outside of a landing zone.

Abstract: A brake mechanism for slowing elevator car doors in an elevator system during an emergency power outage or electrical control malfunction includes a brake shoe activated by a solenoid. During normal operation of the elevator car doors, the solenoid is in activated mode and maintains the brake shoe spaced away from the door pulley. During a power outage or electrical controls malfunction, the solenoid is deactivated and, in cooperation with a compression spring, forces the shoe brake to engage the door pulley to slow down the movement of elevator car doors.

Abstract: An elevator is provided with a car, an inner door mounted to the car and outer doors mounted to floor openings which define floor zones. The inner door registers with the outer doors when the car is disposed within one of the floor zones. The elevator includes a door restrictor having an electric solenoid mounted to the car so that the inner door cannot be opened more than four inches when the elevator is between floor zones. The electric solenoid has a plunger which is normally in an extended position to block the inner door from opening. Power will only be applied to the electric solenoid to lift the plunger from the extended position to a retracted position to allow the inner door to be fully opened when both the car is disposed within a floor zone and the inner doors are being initiated to move slightly by the main elevator controls. A floor zone sensor is mounted to the car for detecting when the elevator is disposed within one of the floor zones.