Abstract: A door open and close mechanism for opening and closing a plurality of doors in a machine tool including a cover. The door open and close mechanism includes a linkage mechanism and a slide mechanism. The linkage mechanism is disposed between an operation door and an intermediate door. The linkage mechanism associates the intermediate door with the opening and closing of the operation door. The slide mechanism is disposed between the operation door and the linkage mechanism. The slide mechanism enables the operation door alone to open and close by a predetermined moving distance. When the operation door is operated to open and close within the moving distance, the operation door alone opens and closes by the slide mechanism. When the operation door is operated to open and close beyond the moving distance, the intermediate door opens and closes in association through the linkage mechanism.

Abstract: A method for determining moving mass of a door system, actuated by a motor, wherein a) the motor electrical output, which is converted into mechanical output, is measured, b) the electrical output is summed during opening and/or closure, starting from the beginning of the actuation of the mass by the motor from initial rest until an end rest position is reached following completion of the actuation to determine energy losses, c) measurement of the maximum speed of the mass of the door system is measured during opening and/or closure, d) the electrical output provided by the motor from the initial rest position of the mass of the door system until achieving the maximum speed v thereof is summed, and the obtained energy value is reduced by the energy losses occurring up to this time point to determine the mass of the door system from the obtained kinetic energy.

Abstract: Disclosed is a winch control arrangement, including a retaining device for a cable, a rotatable drum having a rotational axis, and a substantially circular, centric storage part with a storage surface containing at least two windings of cable. The distance of the storage surface to the rotational axis is substantially constant. An eccentric holding part with a holding surface contains at least two cable windings. The distance of the holding surface to the rotational axis varies around the circumference of the holding part. A cable guide lies at a perpendicular distance from the rotational axis and the drum itself, and is movable substantially parallel to the rotational axis between a first position allowing cable winding on the centric storage part and a second position allowing cable winding on the eccentric part. The cable guide is connected to automatic movement unit for moving the cable guide between the two positions.

Abstract: A coupling system of an elevator car door drive includes a traction device, at least one coupling unit coupled to the traction device, and an adapter element which has a first interlocking adjustment structure which, together with interlocking elements of the traction device, forms a first interlocking unit that secures a relative position of the adapter element with respect to the traction device, which relative position can be adjusted in defined interlocking adjustment positions. The coupling unit has a second interlocking unit which secures a relative position of the adapter element with respect to the coupling unit, which relative position can be adjusted in defined interlocking adjustment positions, wherein, in the second interlocking unit, the distance between directly adjacent interlocking adjustment positions is smaller than the distance between directly adjacent interlocking adjustment positions of the first interlocking unit.

Abstract: An elevator door system includes an elevator car having a front face defining a door opening. At least one elevator door is coupled to the front face of the elevator car for movement between an open position exposing the door opening and a closed position covering the door opening. At least one drive motor is mounted on the front face of the elevator car and is disposed between a lower edge and an upper edge of the elevator car. The drive motor is drivingly coupled to the elevator door for moving the elevator door between the open and the closed positions.

Abstract: An elevator shaft door unlocking mechanism has expander skates on the door drive to unlock the elevator shaft door when entering the region close to an access level. The skates are flexible with respect to the elevator car such that, in the event of any touching of the elevator shaft head, they are flexible over an adjustable distance, and, after the elevator car moves away from the elevator shaft head, they assume their original position. The skates are displaceably mounted on the expander skate construction along respective guides, are held in the uppermost displacement position by tension springs, and are displaced downwardly against the force of these springs through application of force to the upper ends from above resulting from a collision with the elevator shaft head. After the upper ends have been released, they are returned to the uppermost displacement position again by the springs.

Abstract: The present invention relates to an elevator door controller system for operating doors of an elevator car. The system includes a travelling cable for delivering DC power to the car. The car includes a power storage device for storing DC power from the travelling cable, a DC motor for operating the car doors, and an elevator door drive powered by the power storage device for driving the DC motor to operate the car doors.

Abstract: The object of the present invention is to provide a method and elevator system (1) that substantially reduces the installation costs when adding new elevator calls to an existing elevator system, or to reduce the amount of hardware required on installation of a new elevator system. A single push button (2) or a combination of push buttons (2) can be used by a user (4) to register a plurality of elevator calls by operating the push button (2), or combination of push buttons (2), in a predetermined manner to register an elevator call.

Abstract: An exemplary magnetic coupling device (30) useful for coupling elevator doors includes a core (40) having an exterior surface. An active portion (48) of the surface is configured to direct a magnetic flux associated with the core in a desired direction for facilitating elevator door coupling. An interruption (80) in the exterior surface near the active portion (48) is configured to establish a relatively high magnetic saturation in the core in a vicinity of the interruption (80).

Abstract: An elevator door assembly (20) includes a positioner (30) for controlling an orientation of an elevator door panel (22) during movement between open and closed positions. The positioner (30) biases the door in a direction generally perpendicular to the desired direction of door movement. The disclosed example includes a first positioner member (32) that remains in a fixed position. A second positioner member (34) is supported for movement with the elevator door (22). In disclosed examples, at least one of the positioner members (32, 34) provides a magnetic field that results in the biasing force. In a disclosed example, opposing polarities on permanent magnets are arranged to provide a repulsive force between the positioner members (32, 34), which provides the biasing force on the elevator door.

Abstract: In an elevator door apparatus, an elevator door is capable of reciprocating between a door closure position for closing an elevator entrance and a door open position for opening the elevator entrance. The elevator door is driven by a door drive device. The door drive device is controlled by a door control device. The door control device adjusts the door open position based on control information for controlling an operation of an elevator, obtains a door opening/closing pattern for the elevator door to be opened and closed between the adjusted door open position and the door closure position, and controls the door drive device so that the elevator door is reciprocated in accordance with the obtained door opening/closing pattern.

Abstract: An elevator for transporting a person between two floors of a building includes at least one carriage and a lifting system. The elevator includes a control system and door sensors detecting the opening and closing of doors covering a hoist way. The control system detects a first opening and closing of a door in front of the carriage and activates the lift system to move the carriage to an opposite floor. Upon detecting a second opening and closing of a door in front of the carriage, the control system places the lift system in a standby state. Upon detecting a third opening and closing of a door in front of the carriage, the control system again activates the lift system to move the carriage to an opposite floor.

Abstract: The method of the invention can be used to improve the performance of an elevator system. In the method, the acceleration and/or velocity of at least one door in the elevator system is measured and a dynamic model of the door is created. Using the model, an estimation of acceleration and velocity can be calculated as a function of unknown parameters. From the estimated acceleration or velocity and the measured acceleration or velocity an error function is obtained, and a search is performed in an optimizer to find its minimum value. The unknown parameters corresponding to the minimum value indicate the value of the kinetic parameters of the door at the instant being considered. By utilizing the calculated values of the kinetic parameters, the functions of the doors in the elevator system are optimized separately for each door. Using a genetic algorithm, it is possible to determine, in addition to the unknown kinetic parameters, the operational state of the door closing device as well.

Abstract: An elevator door mover device (40) includes a threaded ferromagnetic shaft (42). Magnetic movers (48) associated with doors (26) generate magnetic fields that cause the doors to move responsive to rotation of the shaft (42). In one example, a controller (46) controls a speed of a motor (44) that drives the shaft (42). The controller (46) in some examples also selectively controls the strength of the magnetic fields of the movers, which provides more customizable door performance.

Abstract: A device moves a door seal for a displaceable door panel of an elevator car in an elevator installation with an elevator shaft having shaft doors. The movable door seal is arranged so that the door panel in a closed state is sealed off. The device includes an entrainer unit connected with the door panel and upon stopping of the elevator car at a floor executes a part movement. The device also includes a coupling mechanism mechanically connecting the entrainer unit with the door seal to bring the door seal out of a sealing position into an open position when the entrainer unit executes the part movement.

Abstract: Elevator doors have operating bars that are pivoted on a car door and that serve to actuate shaft-door actuating rollers that operate shaft doors. These doors are operated by an apparatus having an actuating device that changes a spacing between the operating bars and that has an actuating lever coupled with a door actuator. This actuating lever is coupled with a first link pivoted on the operating bars. The actuating lever and the first link are pivotal through a predetermined angle. A latch for the car doors is provided with a tension element connected between one operating bar and the actuating lever.

Abstract: Equipment for temporarily coupling an elevator car door leaf with a shaft door leaf and for actuating a car door lock includes a coupling mechanism arranged at the car door leaf with two entraining runners mounted on two pivotable adjusting elements. The spacing between the entraining runners can be adjusted by pivoting of the adjusting elements between an uncoupling setting and a coupling setting, wherein the entraining runners in the coupling setting co-operate with at least one coupling element mounted at the shaft door leaf. One of the entraining runners is coupled by way of a respective articulation member with one arm of each of the two adjusting elements, wherein a contact force arising between the entraining runner and the corresponding coupling element in the coupling setting causes the entraining runner to execute an additional movement which is guided by the articulation members to unlock the car door lock.

Abstract: An elevator door drive device, which opens and closes at least one car door leaf and a corresponding shaft door leaf, includes a coupling mechanism mounted at the car door leaf for transmitting the car door leaf movement to the shaft door leaf with two parallel entraining runners mounted on pivotable adjusting elements. The spacing between the runners is adjustable and a drive unit transmits closing and opening movements to the car door leaf by way of a drive apparatus that leads the entraining runners to a coupling element at the shaft door leaf before the start of the opening movement and moves them away from the coupling element after the end of the closing movement. The pivotable adjusting elements, during opening or closing the door leaf are blocked by means of a catch acting in both pivot directions.

Abstract: A door suspension assembly includes a ferromagnetic flat plate horizontally extending from a support rail adapted to be attached to a door frame above a doorway or entrance portal. Two supporting blocks each have an opening in which a cylindrical bearing with an axial hole is located. The supporting blocks are attached to a door panel. Connectors extend downwardly from the flat plate and support a tube that extends through the holes in the bearings. A magnet array is supported by an upper plate attached to upper ends of the supporting blocks with a small magnetic gap between the magnet array and the flat plate such that the magnet array generates a magnetic force lifting the supporting blocks and the door panel. A primary of a linear motor is attached to the upper plate between the supporting blocks and cooperates with a secondary located in the interior of the tube to move the door panel relative to the flat plate.

Abstract: A secondary part of a linear motor, for use in an elevator installation, includes a frame having a plurality of free spaces formed therein, each of the free spaces being surrounded by an inner surface of the frame, at least one magnet positioned in an associated one of each of the free spaces, each magnet having at least one end face spaced from the inner surface, and an adhesive material filling a space between the end surface and the inner surface wherein the magnet is selectively positionable in the associated free space prior to gluing of the magnet to the frame by the adhesive material. The secondary part can be used in a linear motor having: a first primary part, a further part being one of a secondary primary part and an iron element, and the secondary part disposed between the first primary part and the further part.

Abstract: A carrier for the reception of all important components of a door drive. The carrier has a base part and a length adapter, which are connectible together in such a manner that carriers of different lengths can be produced so that the carrier can be used in different door systems with different entrance widths.

Abstract: An elevator door system includes an elevator car having a front face defining a door opening. At least one elevator door is coupled to the front face of the elevator car for movement between an open position exposing the door opening and a closed position covering the door opening. At least one drive motor is mounted on the front face of the elevator car and is disposed between a lower edge and an upper edge of the elevator car. The drive motor is drivingly coupled to the elevator door for moving the elevator door between the open and the closed positions.

Abstract: Disclosed is an elevator door with an improved clutch device suitable for increasing clutch speed and decreasing clutch distance of a car door and a hatch door.

Abstract: These carriers for the reception of all important components of a door drive can be used in different door systems with different entrance widths. For this purpose the carrier (10) consists of a base part (11) and a length adapter (12), which are connectible together in such a manner that carriers (10) of different lengths can be produced.

Abstract: Disclosed is a door operator mounted in a space between a cab fascia and a sill edge plane. A feature of the door operator is a drive unit connected to a drive pulley, the drive unit being mounted in a central portion of the door operator, wherein the drive pulley provides a drive force to a linear transmission element. Another feature of the door operator is a modular mounting plate, wherein the door operator is mounted to the mounting plate, and in turn, the mounting plate is mounted in the space between the cab fascia and the sill edge plane.

Abstract: The door or doors on an elevator cab are driven during their opening and closing cycles by a linear induction motor drive system. The primary of the linear motor is fixed to the cab assembly, and the secondary is mounted on the door hanger panel and moves with the door. In order for the secondary to maintain a proper spacing relative to the primary, a flexible connection is provided between the secondary and the remainder of the door. In this way, shifting of the door during its opening and closing movements will not cause misalignment of the secondary with respect to the primary.

Abstract: Disclosed is a door operator mounted in a space between a cab fascia and a sill edge plane. A feature of the door operator is a drive unit having a drive shaft, the drive unit being mounted in a central portion of the door operator, wherein drive pulleys are fastened to the drive shaft, thereby providing a drive force to linear transmission elements disposed about each of the drive pulleys. Another feature of the door operator is a modular mounting plate, wherein the door operator is mounted to the mounting plate, and in turn, the mounting plate is mounted in the space between the cab fascia and the sill edge plane.

Abstract: A bi-parting elevator door actuator apparatus operably connected to a bi-parting door assembly having 1) a door interlock and power control assembly; 2) a bi-fold door actuator assembly; and 3) an electrical control circuit. The door interlock and power control assembly includes 1) a door latch assembly connected to the bi-parting door assembly to hold in a closed position; 2) a cam roller and linkage assembly engagable with the bi-parting door assembly to open and close a first power relay assembly; and 3) a door actuated power assembly having a second power relay assembly operable to be opened on opening of the bi-parting door assembly. An elevator drive motor is denied electrical power when a) the bi-parting door assembly is in an open position; and b) the traveling elevator car assembly reaches a predetermined position for stopping.