JP2010159112A - Moving cable device of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a moving cable device of an elevator, without causing disconnection and complicatedness of a device. <P>SOLUTION: This moving cable device is composed of a hoistway cable suspender 14 suspending the other end of a second moving cable 13 and fixed to a hoistway, and a wiring cable 15 having one end connected to the hoistway cable suspender and having the other end connected to a control board, and supplies electric power and gives-receives a signal between a car and the control board 16, and has respectively pulleys 21, 22 and 23 in an upper part of a moving cable suspender 12, a top part of the hoistway and a bottom part of the hoistway. One end of a suspension rope is fixed to the hoistway top part via the suspension rope 20 to the pulley 21 of the moving cable suspender, and the other end of the rope is warped by the pulley 22 arranged in the hoistway top part, and is also connected to the car by warping by he pulley 23 arranged on the hoistway bottom part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a moving cable device for an elevator that supplies power and transmits / receives signals to / from a car that moves up and down in a hoistway.

  In an elevator moving cable device, when the car goes up and down for a long stroke, the wire diameter increases due to the problem of the voltage drop of the wire in addition to the increase in the weight of the moving cable along with the increase in the length of the car. As the amount of signal increases, the number of wires increases and the weight further increases. In addition, if the steel core, which is a structural material, is made thicker as the weight increases, the weight increases further, and there is a limit to the weight that can be supported without breaking the steel core. There is a limit to the size of the lead. That is, there is a limit to the up and down stroke that can be handled by the moving cable device.

  As a means for solving this problem, there is a moving cable device in which a moving cable is separated into a car side and a hoistway side, and the middle is hung by a moving cable hoist capable of moving up and down as the car is raised and lowered (see, for example, Patent Document 1).

  According to the above moving cable device, the moving cable lifting hand lifting / lowering stroke is half of the lifting / lowering stroke of the car, and therefore the lifting / lowering speed may be half of the cage. The length of the moving cable in the moving cable device configured as described above is substantially the same for the first moving cable on the car side and the second moving cable on the hoistway side, and is a quarter of the length of the hoistway. It is only necessary to prepare a U-shaped moving cable corresponding to the length of the cable, which can reduce the weight of the moving cable on the car or the hoistway suspension, and as a result, realizes an elevator with a longer lifting stroke it can.

Japanese Patent Laid-Open No. 10-182034 (page 8, FIG. 1)

  In the proposed embodiment, the rotation of the hoist that raises and lowers the car is transmitted to the drive steel wheel to raise and lower the movable cable suspension. When the above configuration is used, when the hoisting machine brakes are operated due to an emergency stop in the event of a power failure or failure, or when the main rope and the sheave of the hoisting machine that suspends the car in a catch test etc. slip or idle The position of the moving cable suspension is shifted. When the moving cable suspension is displaced upward, the moving cable on the hoistway side is stretched on the top floor, and the car-side moving cable is stretched on the bottom floor. When the moving cable suspension is shifted downward, the moving cable on the car side is stretched on the top floor, and the moving cable on the hoistway side is stretched on the bottom floor. For this reason, there is a risk of disconnection of the moving cable.

  In another embodiment, in order to drive the driving steel wheel without being interlocked with the rotation of the hoisting machine, the position of the moving cable suspension is detected and the lifting / lowering of the moving cable suspension is controlled according to the position. There is also a problem that the device configuration becomes complicated.

  An object of the present invention is to provide a moving cable device for an elevator that does not cause disconnection or complexity of the device.

  In order to achieve the above object, in the present invention, a car cable hanger provided on a car, a first moving cable with one end hung on the car cable hanger, and the other end of the first moving cable are A moving cable hanger that is hung up and down in the hoistway, a second moving cable with one end hung on the moving cable hanger, and the other end of the second moving cable hung and fixed to the hoistway The hoistway cable suspender, and one end of the hoistway cable hanger and the other end of the wiring cable connected to the control panel, between the car and the control panel, the wiring cable, In an elevator moving cable device configured to supply power and send and receive signals via the first moving cable and the second moving cable, the upper part of the moving cable suspension and the top of the hoistway Each of the bottom of the hoistway is provided with a pulley, the rope is passed through the pulley of the moving cable suspension, one end of the rope is fixed to the hoistway top, and the other end of the rope is bent by the pulley provided on the hoistway top, The car is connected to the car by being warped by a pulley provided at the bottom of the hoistway.

  With the above configuration, since there is no displacement of the moving cable suspension, the moving cable will not break, and it is necessary to detect the position of the moving cable suspension and to control the lifting and lowering of the moving cable suspension according to the position. Therefore, there is no problem that the device configuration becomes complicated.

  According to the present invention, since there is no displacement of the moving cable suspension, the moving cable does not break, and the position of the movement cable suspension is detected and the elevation of the movement cable suspension is controlled according to the position. This eliminates the problem that the apparatus configuration becomes complicated.

1 is an overall configuration diagram of an elevator including an elevator moving cable device according to an embodiment of the present invention. It is a side view of FIG. It is the figure which looked up at the moving cable apparatus from the cage | basket | car. FIG. 6 is a configuration diagram illustrating the positional relationship of the moving cable device according to the position of the car. A shows a case where the car is on the top floor, B is on the intermediate floor, and C is on the bottom floor. Is.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of an elevator moving cable device according to the present invention will be described below with reference to the drawings.

  In the figure, 1 is a car for raising and lowering a hoistway 2, 3 is a hoisting machine for raising and lowering the car 1, 4 is wound around the hoisting machine 3, one end is connected to the car 1 and the other end is connected to a counterweight 5. The main rope 4 is driven by the hoisting machine 3 to raise and lower the car 1 and the counterweight 5. Reference numeral 5 denotes a car counterweight which is suspended from the other end of the main rope 4 and balances the weight with the car 1. Reference numeral 6 denotes a car rail for guiding the raising / lowering of the car 1, and 7 denotes a weight rail for guiding the raising / lowering of the counterweight 5.

  10 is a car cable suspension provided on the car 1, 11 is a first movement cable suspended from the car cable suspension 10, and 12 is a movement cable suspension that suspends the other end of the first movement cable 11. A hand, 13 is a second moving cable hung on the moving cable hanger 12, 14 is a hoistway cable hanger on which the second moving cable 13 is hung on the hoistway 2, and 15 is from the hoistway hanger. A wiring cable 16 to the machine room at the top of the hoistway is a control panel for connecting the wiring cable 15 in the machine room, and controls the drive of the elevator.

  20 is a suspension rope that suspends the moving cable suspension 12 having one end fixed to the top of the hoistway and the other end connected to the car 1, and 21 is a pulley that wraps the suspension rope 20 and suspends the movement cable suspension 12. Is a pulley provided at the top of the hoistway that warps the suspension rope 20 toward the hoistway bottom, and 23 is a pulley provided at the hoistway bottom that warps the suspension rope 20 toward the hoistway top.

  In the elevator moving cable device, the hoisting machine 3 is rotationally driven under the command of the control panel 16 and the car 1 suspended by the main rope 4 moves up and down, and the moving cable suspension 12 is also interlocked. Go up and down.

  FIG. 4 illustrates the positional relationship between the car 1 and the moving cable suspension 12 at the time described above. The hoistway cable hangers 14 are usually installed in the middle of the lifting process (indicated by L). FIG. 4B shows the case where the car 1 is in the middle of the up / down stroke, and the moving cable suspender 12 is also at the same position in the middle of the up / down stroke. FIG. 4A shows the case where the car 1 is on the uppermost floor of the lifting / lowering stroke, and the moving cable suspension 12 is located at an intermediate point (L / 4 from the top) between the cage 1 and the hoistway cable suspension 14. Is the one when the car 1 is on the lowest floor of the lifting process, and the moving cable suspension 12 is similarly located at the midpoint (L / 4 from the bottom) of the cage 1 and the hoistway cable suspension 14.

  According to the present embodiment, as shown in FIGS. 4A, 4B and 4C, the movable cable suspension 12 can be moved up and down at half the lifting speed of the car 1, and the three pulleys 21, 22, 23 This can be realized by the hanging rope 20. Further, since the moving cable suspension 12 is directly moved up and down by raising and lowering the car 1, there is no position shift of the moving cable suspension 12 and there is no fear that the moving cables 11, 13 are disconnected.

DESCRIPTION OF SYMBOLS 1 Car 2 Hoistway 3 Hoisting machine 4 Main rope 5 Balance weight 6 Car rail 7 Weight rail 10 Car cable lifter 11 First moving cable 12 Moving cable lifter 13 Second moving cable 14 Hoistway cable lifter 15 Cable for wiring 16 Control panel 17 Hanging rope 21, 22, 23 Pulley

Claims (1)

A car cable hanger provided on the car, a first moving cable with one end hung on the car cable hanger, and a moving cable hanger with the other end of the first moving cable hung up and down the hoistway A hand, a second moving cable having one end suspended from the moving cable suspension, a hoistway cable suspension having the other end of the second moving cable suspended and fixed to the hoistway, and one end being The cable cable suspender comprises a wiring cable having the other end connected to the control panel, and the wiring cable, the first moving cable, and the second movement between the car and the control panel. In an elevator moving cable device that supplies power and sends and receives signals via a cable,
A pulley is provided on each of the upper part of the moving cable suspension, the top of the hoistway, and the lower part of the hoistway. A moving cable device for an elevator characterized in that it is warped by a pulley provided at the top of the road, and further warped by a pulley provided at the bottom of the hoistway and connected to the car.

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