SAFETY DEVICE FOR NON-FERROUS GUIDE RAIL

    公开(公告)号:JP2002154761A

    公开(公告)日:2002-05-28

    申请号:JP2000346059

    申请日:2000-11-14

    Abstract: PROBLEM TO BE SOLVED: To provide a safety device 16 capable of stopping the movement of an elevator car in the overspeed condition on a guide rail 14 made of a non-ferrous material. SOLUTION: This safety device 16 includes one or more wedges 20 formed of a rigid material, and one surface of these wedges is provided with a friction surface 24 to be brought in contact with a surface of a guide rail 14 when the overspeed condition is generated, and other surface thereof is provided with a bearing surface 22 to be pushed to a slide or a roller member 30. When the overspeed condition is generated, the wedge is pulled to be brought in contact with the slide or the roller member, and the slide or the roller member gives the force in the horizontal direction to the wedge, and pushes the wedge for a contact with the guide rail 14, and the braking operation is obtained at this contact position. The wedge is desirably arranged in a pair with an opposite surface of each guide rail 14.

    ROPELESS ELEVATOR SYSTEM WITH INCREASED CAR CAPACITY AND ITS OPERATING METHOD

    公开(公告)号:JPH11263553A

    公开(公告)日:1999-09-28

    申请号:JP5935498

    申请日:1998-03-11

    Abstract: PROBLEM TO BE SOLVED: To improve the passenger carrying capacity per short time by making passengers board a plurality of cars out of an elevator shaft, returning the cars after the boarding of the passengers is ended, and raising and falling the cars. SOLUTION: This system is provided with a plurality of elevator cars 14 moved along two different horizontal boarding passages 10, 12, and each boarding passage 10, 12 is connected to a single rope-less elevator shaft 16. Each boarding passage 10, 12 is provided so that half of the cars 14 within the elevator shaft 16 can be housed, respectively, and the cars 14 are moved along prescribed curved horizontal/vertical tracks in each boarding passage 10, 12. When each car 14 is returned into the elevator shaft 16, a plurality of cars 14 are mutually connected so as to form a single train, whereby a large number of passengers can be carried. By providing two boarding passages 10, 12 in this way, the speed of horizontally carrying one car 14 can be reduced (halved).

    ELEVATOR HOISTWAY AND ELEVATOR DEVICE

    公开(公告)号:JP2002154763A

    公开(公告)日:2002-05-28

    申请号:JP2000341374

    申请日:2000-11-09

    Abstract: PROBLEM TO BE SOLVED: To provide guide rails made of a non-ferrous material and an elevator guide device. SOLUTION: Guide rails 12 are integrally formed with the structure of a hoistway 10, and desirably include concrete. Plural air cushions are provided in an elevator car adjacent to the concrete rails 12, and when the elevator car moves in the vertical direction, these air cushions inject the air flow to at least one, desirably all of the surfaces of the rails 12 and at least the rail 12 of the car to control so that the energizing force is generated between each rail 12 and the car. Air is supplied by a fan or other supply source. The car is positioned at the center position of each hoistway by the air flow injected to each surface, and the smooth and quiet elevating operation is thereby provided.

    ELEVATOR SYSTEM FOR CHANGING ELEVATOR SHAFT WHILE VERTICALLY MOVING CAR

    公开(公告)号:JPH11263558A

    公开(公告)日:1999-09-28

    申请号:JP6752898

    申请日:1998-03-18

    Abstract: PROBLEM TO BE SOLVED: To efficiently perform an elevator drive in a high rise building by setting a moving section in the middle position of an elevator shaft, transferring a car from a lower guide rail to an upper guide rail, and vertically moving the car by an independent rope. SOLUTION: Paired elevator cars 30, 31 are connected to ropes 34, 35 by couplers 32, 33, and interlockingly raised and lowered through the ropes 34, 35. A counter weight 36, 37 is connected to each rope 34, 35, respectively, so as to be driven by independent traction mechanisms 38, 39, and each car 30, 31 is vertically guided along paired rails 40, 41. The rails 40, 41 erected between upper and lower landings 42, 43 are bent in the middle position, and in this moving section 44, the car is moved from a first elevator shaft having one coupler 32 or 33 to a second elevator shaft having the other coupler 33 or 32.

    MECANISMO DE ACCIONAMIENTO TRIAC PARA ACCIONADOR DE PUERTA DE ASCENSOR CON MOTOR DE INDUCCION LINEAL MOVIDO POR LINEA TRAFASICA.

    公开(公告)号:ES2120379A1

    公开(公告)日:1998-10-16

    申请号:ES9602022

    申请日:1996-09-24

    Abstract: UN MECANISMO ELECTRONICO DE ACCIONAMIENTO DE MOTOR PRODUCE UN PERFIL DE MOVIMIENTO REQUERIDO PARA UN ACCIONADOR DE PUERTA DE ASCENSOR ACCIONADO POR UN MOTOR DE INDUCCION LINEAL (LIM) ACCIONADO POR LINEA TRIFASICA POR MEDIO DE UNA RED DE CONMUTADORES TRIAC QUE PRODUCEN FUERZAS SELECCIONADAS PROCEDENTES DEL LIM. EL MECANISMO DE ACCIONAMIENTO TRIAC ES CAPAZ DE PRODUCIR ACELERACION, DECELERACION O MARCHA LIBRE POR INERCIA EN LA DIRECCION DE LA OPERACION DE APERTURA O CIERRE DE LA PUERTA. CUANDO ES CONTROLADO POR UN ALGORITMO COMO UN CONTROL DE "PUNTO DE CONMUTACION DE TIEMPO OPTIMO" O "TODO O NADA", EL MECANISMO DE ACCIONAMIENTO TRIAC PRODUCE LOS MOVIMIENTOS REQUERIDOS A PARTIR DEL MOTOR DE INDUCCION LINEAL PARA EL FUNCIONAMIENTO DE LA PUERTA DEL ASCENSOR. LOS DEVANADOS DE MOTOR SON CONMUTABLES ENTRE CONEXIONES EN TRIANGULO Y ESTRELLA PARA OBTENER DOS NIVELES DE EMPUJE DISTINTOS. SE PUEDE UTILIZAR MODULACION DE ANGULO DE FASE PARA OBTENER UN CONTROL MAS FINO DEL EMPUJE. EL MOTOR LINEAL PUEDE SER UN DISPOSITIVO DE 12 RANURAS CON CUATRO POLOS Y TRES FASES Y ESTAR DISPUESTO DE MANERA QUE EMANE FLUJO DEL PRIMARIO ESTACIONARIO (EN LA CABINA) A UNA PARTE DE CONTRAHIERRO ESTACIONARIA DEL SECUNDARIO, TAMBIEN MONTADO EN LA CABINA, DONDE EL FLUJO PASA A TRAVES DE UNA PARTE DE COBRE MOVIL DEL SECUNDARIO UNIDA A LA PUERTA DE ASCENSOR Y QUE PASA ENTRE EL PRIMARIO Y EL CONTRAHIERRO.

    9.
    发明专利
    未知

    公开(公告)号:IT1286322B1

    公开(公告)日:1998-07-08

    申请号:ITRM960646

    申请日:1996-09-20

    Abstract: An electronic motor drive produces a required motion profile for an elevator door operator actuated by a three-phase, line-powered linear induction motor (LIM) by means of an array of TRIAC switches producing selected forces from the LIM. The TRIAC drive is capable of producing acceleration, deceleration or free coast in either the open or close direction of door operation. When controlled by an algorithm such as a "time-optimal switch point" or "bang-bang" control, the TRIAC drive produces the required motions from the linear induction motor for elevator door operation. The motor windings may be switchable between delta and wye hookups to provide two distinct thrust levels. Phase angle modulation may be used to provide finer control of thrust. The linear motor may be a 12-slot arrangement having four poles and three phases and arranged with flux emanating from the stationary primary (on the car) to a stationary backiron part of the secondary also mounted on the car, wherein the flux passes through a movable copper part of the secondary attached to the elevator door and passing between the primary and the backiron.

    10.
    发明专利
    未知

    公开(公告)号:ITRM960645A1

    公开(公告)日:1998-03-20

    申请号:ITRM960645

    申请日:1996-09-20

    Abstract: A linear motor for operating an elevator door is energized using a bang-bang control strategy (10) wherein three-phase AC utility mains (16) are connected (29) directly to the linear motor primary (14) by means of a motor control (12) in response to control signals (26) provided under the direction of a control strategy (10), which may be microprocessor-based. Commands (24) from an elevator controller to open/close the elevator door cause the system to operate the doors and a sensor (22) provides feedback (28) by means of which the control (10) is able to determine switch points for switching the AC mains.

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