JP6504589B2 - Elevator equipment - Google Patents

Description

  The present invention relates to an elevator apparatus.

  As a conventional elevator apparatus, as disclosed, for example, in Patent Document 1, there is an elevator apparatus in which a cab and a counterweight incorporating a linear motor are connected in a sliding manner via a return car.

  In this elevator system, the car signal cable provided at the lower part of the car cabin and the power cable provided at the lower part of the counterweight are connected to a drive control device provided at the lower part of the hoistway via a spirator. Ru. This allows the car signal cable or power cable to be wound up as the car room or counterweight is raised and lowered, thereby reducing the excess portion of the cable.

JP-A-8-268663

  However, in the elevator apparatus described in Patent Document 1 described above, since the spirator is installed at the lower part of the hoistway, there is a possibility that the degree of freedom in determining the evacuation space of the worker at the time of maintenance work may be reduced. In addition, when the lifting stroke is long (there are many floors), the cable lengthens, the amount of winding by the spirator is large, and the spirator body becomes large, which also reduces the freedom to determine the evacuation space. There was a sex.

  The present invention has been made in view of the above, and it is an object of the present invention to obtain an elevator apparatus capable of easily securing a retraction space while being able to reduce an excess portion of a cable.

  In order to achieve the above-mentioned object, the present invention is an elevator provided with a car, a main rope for suspending the car, and a cable connecting the control board and the car, which are provided so as to be able to move up and down in a hoistway. The car is provided with a cable winding device for winding and unwinding the cable, and the cable winding device is supported by the car so as to integrally move up and down the car. It is done.

  According to the elevator apparatus of the present invention, it is possible to easily secure a retraction space while being able to reduce the excess portion of the cable.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the elevator apparatus of Embodiment 1 of this invention. It is a figure which shows the state which a cage | basket | car exists in the retraction | saving space vicinity regarding Embodiment 1 of this invention. FIG. 3 is a view of the same aspect as FIG. 2 regarding an illustrative example. It is a figure which shows the state which a cage | basket | car exists in the retraction | saving space vicinity regarding Embodiment 2 of this invention.

  Hereinafter, embodiments of the present invention will be described based on the attached drawings. In the drawings, the same reference numerals indicate the same or corresponding parts.

Embodiment 1
FIG. 1 is a view showing an elevator apparatus according to Embodiment 1 of the present invention. FIG. 2 is a diagram showing a state where a car is in the vicinity of a retraction space according to the first embodiment of the present invention. The elevator system comprises a car 4 and a counterweight 5 and a main rope 10. The car 4 and the counterweight 5 are provided to be able to move up and down in a vertically extending hoistway 1. The car 4 and the counterweight 5 are connected by a main rope 10. That is, the main rope 10 connects the car 4 and the counterweight 5 in a crane manner.

  A machine room 3 is provided in the upper part in the hoistway 1, and a pit 2 is provided in the lower part in the hoistway 1. In the machine room 3, a machine base 8, a hoist 6, a deflecting wheel 7 and a control board 9 are provided. The machine base 8 is disposed in the lower part of the machine room 3, and the hoisting machine 6 and the deflecting wheel 7 are mounted on the machine base 8.

  A main rope 10 is wound around the hoisting machine 6 and the deflecting wheel 7. Then, when the hoisting machine 6 is driven, the main rope 10 is moved, and the car 4 and the counterweight 5 are raised and lowered in mutually opposite directions.

  The elevator installation further comprises a cable 11. The cable 11 is for transmitting and receiving various signals and the like to the car, supplying power and the like, and connects the control panel 9 and the car 4.

  On the landing side of the car 4, a car door device 14 configured in a known manner is provided. Moreover, the landing door apparatus 13 is provided in the hoistway side of each landing of a structure.

  Further, the car 4 is provided with a cable winding device 12. The cable winding device 12 is supported by the car 4 so as to move up and down integrally with the car 4. Although not limited as the present invention, in the first embodiment, the cable winding device 12 is supported on the lower outside of the car 4.

  According to the first embodiment configured as described above, the following advantages can be obtained. First, as shown in the explanatory example of FIG. 3, when the cable winding device 12 is not provided for the cable 11, the cable 11 occupies a large space under the car 4, and It is necessary to enlarge the pit 2 in order to secure a sufficient evacuation space for maintenance workers. That is, the pit must be made deeper than the pit needed if the cable were not present.

  On the other hand, in the first embodiment, when the car is operated in the maintenance mode, when the car descends beyond the predetermined height of the hoistway, the cable 11 is wound up and the car is also operated. When it rises above a predetermined height of the hoistway, the cable 11 is unwound. In this manner, the cable winding device 12 winds up a portion of the cable 11 that may hang downward of the car 4 so that a safe work space and a withdrawal space for the worker 15 are sufficiently secured. In addition, the pit depth can also be operated with the same dimensions as during normal elevator operation.

  Further, in the first embodiment, unlike the technique disclosed in Patent Document 1 described above, no device such as a spirator is installed in the lower part of the hoistway, and the cable winding device 12 does not It is attached to the car 4. Therefore, the evacuation space for workers can be easily secured.

  In the above description, the mode in which the cable 11 is wound up and fed out when operating in the maintenance mode has been described, but instead of this mode or in addition to this mode, during normal operation The cable 11 may be wound and unwound in accordance with the lifting and lowering operation of the car 4. During normal operation, the cable winding device 12 winds up and unwinds the cable 11 in accordance with the lifting and lowering operation of the car 4. Usually, in the elevator system, the height position of the car in the hoistway is easily known in a known manner, and the length of the cable is also known in advance as a design value. It also shows how much the cable will hang down the car, corresponding to its height position. In the first embodiment, the winding and unwinding of the cable are performed in accordance with the height position of the car or the movement amount of the car.

  As described above, according to the first embodiment, it is possible to easily secure a retraction space while being able to reduce the excess portion of the cable.

Second Embodiment
A second embodiment of the present invention will now be described based on FIG. The second embodiment is the same as the above-described first embodiment except for the contents described below.

  FIG. 4 is a diagram showing a state where a car is in the vicinity of a retraction space according to Embodiment 2 of the present invention. In the second embodiment, the cable winding device is a car door drive motor 17. A car door drive motor 17 is installed at the top of the car 4 in order to open and close the car door.

  Further, pulleys 18a and 18b are provided at the lower part of the car 4 in order to wind the portion of the cable 11 hanging down from the control panel 9 by the car door drive motor 17. That is, once the cable 11 extending downward of the car 4 is wound around the pulleys 18 a and 18 b, the cable 11 is wound around the door driving motor 17 at the top of the car 4. The door drive motor 17 not only winds up the cable 11 but also unwinds the cable 11 as required, as in the first embodiment.

  Also according to the second embodiment configured as described above, it is possible to easily secure a retraction space while being able to reduce the excess portion of the cable. In addition, since the car door drive motor originally necessary to open and close the car door is used, there is an advantage that the cost can be reduced as compared with the case where a dedicated winding and unwinding motor is provided. .

  While the contents of the present invention have been specifically described with reference to the preferred embodiments, various modifications can be made by those skilled in the art based on the basic technical concept and teaching of the present invention. It is self-explanatory.

  For example, the present invention can also add and implement a winding device to a compen cable attached as a traction measure for a car and a counterweight besides a control cable. While it is possible to reduce the surplus part, it is possible to easily secure a save space.

  1 hoistway, 4 cars, 9 control boards, 10 main ropes, 11 cables, 12 cable winders, 17 car door drive motors.

Claims (1)

The elevator, which can be lifted and lowered in the hoistway,
A main cord for suspending the car;
An elevator apparatus comprising a control panel and a cable connecting the car with
The car is provided with a cable winding device for winding and unwinding the cable, and the cable winding device is supported by the car so as to integrally move up and down the cage .
The cable winding device is a door drive motor for the car .
Elevator equipment.

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