JP4770241B2 - Elevator equipment - Google Patents

Description

  The present invention relates to an elevator apparatus in which a car and a counterweight move along a guide rail in a hoistway.

  Conventionally, an elevator apparatus has been proposed in which a car and a counterweight are suspended by 3: 1 roping. For example, in Patent Document 1 below, the tension acting on the rope is 2/3 compared to the conventional 2: 1 roping elevator device, the winding torque acting on the driving device is reduced, and as a result, the driving device is It is described that the size can be reduced.

Japanese Patent Application Laid-Open No. 2004-83231 (FIGS. 1, 2, etc.)

  However, in the elevator apparatus described in Patent Document 1, the suspension vehicle attached to the car is arranged above the car so as to overlap the vertical projection of the car. For this reason, there is a limit to the space above the car, and it may be difficult to realize space saving in the height direction of the hoistway.

  An object of the present invention is to provide an elevator apparatus that can easily save space in the height direction of a hoistway.

In order to achieve the above object, the present invention provides an elevator apparatus in which a car and a counterweight suspended by a rope in a hoistway are driven by a hoisting machine so as to face the side surface of the car. A car suspension car attached to the car, a car leash stopper attached to the car, a counterweight suspension car attached to the top of the counterweight, and a counterweight leash attached to the counterweight The hoisting machine is thin, the vertical projection of the hoisting machine is located between the vertical projection of the car and the vertical projection of the hoistway wall, The rope is positioned in the vicinity of the side opposite to the side opposite to the car suspension vehicle, and one end of the rope is fixed to the car tie-stop, and the rope is It extends upward from the rope stop and turns downward via the first return wheel, turns upward via the car suspension and winds around the hoisting machine via the second return wheel. It is hung and turns downward, turns upward via the counterweight suspension wheel, and reaches the counterweight rope stopper via a third return wheel, and the rope is connected to the counterweight rope stopper. The other end is fixed.
According to the present invention, in an elevator apparatus in which a car and a counterweight suspended by a rope in a hoistway are driven by a hoisting machine, the first car is attached to the car so as to face the side surface of the car. A car suspension car, a second car suspension car attached to the car so as to face the side opposite to the side of the car, and a first car attached to the top of the counterweight The hoisting machine is thin, and the hoisting machine has a vertical projection between the vertical projection of the car and the hoistway wall, and the rope One end of the rope is fixed to the first rope stop at the upper part of the hoistway, and the rope extends downward from the rope stop and turns upward through the first car suspension vehicle. Down through the first return wheel The direction is changed, the direction is changed upward via the second car suspension car, the direction is turned downward by being wound around the hoisting machine via the second return wheel, and the first counterweight is changed. The direction is changed upward via the suspension wheel, the direction is changed downward via the third return wheel, the direction is changed upward via the second counterweight suspension vehicle, and the second of the upper part of the hoistway is changed. And the other end of the rope is fixed to the second rope stopper.

  ADVANTAGE OF THE INVENTION According to this invention, the elevator apparatus with which space saving of the height direction of a hoistway is easy can be provided.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a diagram showing how to hang a rope 5 of an elevator apparatus according to a first embodiment of the present invention, and FIG. 2 is a plan sectional view of a hoistway in the elevator according to the present embodiment. In the elevator apparatus of the present embodiment, the car 1 is moved up and down along the car guide rails 14a and 14b, and the counterweight 10 is moved up and down along the counterweight guide rails 15a and 15b. The car 1 and the counterweight 10 are suspended by a rope 5 and driven by a hoisting machine 8.

  Further, a car suspension vehicle 6 is attached to the car 1 near the lower portion of the left side surface of the car 1, and the plane of rotation of the car suspension car 6 is substantially parallel to the left side surface of the car 1. ing. Thus, since the car suspension vehicle 6 is attached to the car 1 so as to face the side surface of the car 1, the vertical projection of the car 1 and the vertical projection of the car suspension car 6 do not overlap. . For this reason, it is not necessary to arrange the hoisting machine 8 in a high place where it does not contact the car 1, and as a result, space saving in the height direction of the hoistway becomes easy.

  Further, a car tie-fastening portion 3 is attached to the car 1 near the side opposite to the side facing the car suspension wheel 6, that is, near the lower part of the right side of the car 1. On the other hand, a counterweight suspension wheel 11 and a counterweight tether stop 13 are also attached to the upper part of the counterweight 10. Here, the car tie stop 3 and the counterweight tie stop 13 function to absorb the elongation of the rope 5.

And in the upper part of the hoistway, the first return wheels 4a and 4b consisting of two return wheels whose vertical projections are substantially parallel to each other, and the second return wheel consisting of two return wheels located at different heights 7a and 7b and a third return wheel 12 are installed. Here, the vertical projection of the first return wheels 4a and 4b, the second return wheel 7b, the drive sheave 9 of the hoisting machine 8, the counterweight suspension wheel 11 and the third return wheel 12, and the car suspension wheel 6 Are arranged so as to be substantially perpendicular to each other. Further, the vertical projection of the second return wheel 7 a is arranged so as to be inclined with respect to the vertical projection of the first return wheel 4 a and the like, and to be inclined with respect to the vertical projection of the car suspension vehicle 6. Note that any return wheel is above the ceiling of the car 1.

  Next, how to hang the rope 5 in the elevator apparatus of the present embodiment will be described. Basically, the elevator apparatus according to the present embodiment employs a 3: 1 roping method in which the car 1 and the counterweight 10 are suspended using a rope stop and a suspension car. Specifically, as shown in FIG. 1, first, one end of the rope 5 is fixed to the rope stopper 3 of the car 1, and extends upward from the rope stopper 3 to be substantially horizontal from the first return wheel 4a. To the other first return wheel 4b, and the direction is changed downward by the first return wheel 4b. Further, the rope 5 changes its direction upward via the car suspension wheel 6 and is wound around the upper part of the second return wheel 7a, and is then wound around the lower part of the other second return wheel 7b. Then, it is wound around the drive sheave 9 of the hoisting machine 8 and turns downward. Further, the rope 5 is turned upward via a counterweight suspension wheel 11 and reaches a rope stopper 13 at the upper portion of the counterweight 10 via a third return wheel 12, and the rope is connected to the rope stopper 13. The other end of 5 is fixed.

  The hoisting machine 8 is provided so that its vertical projection is located between the vertical projection of the car 1 and the vertical projection of the hoistway wall 16. Therefore, it is not necessary to provide a space for avoiding contact between the hoisting machine 8 and the car 1 in the height direction, and the height direction of the hoistway can be saved. Further, since the hoisting machine 8 is thin, even if the vertical projection of the drive sheave 9 is substantially perpendicular to the depth direction of the car 1, the hoisting machine 8 is placed in a limited space on the back of the car 1. Can be placed. Here, the thin hoisting machine 8 means that the axial length of the hoisting machine 8 is smaller than the diameter of the drive sheave 9 of the hoisting machine 8. Further, the depth direction of the car 1 means a direction perpendicular to the car door 2, and the back part of the car 1 means a rear part of the car 1 when viewed from the elevator landing side.

  Further, in this embodiment, the counterweight 10 is also arranged on the back of the car 1, and a thin hoisting machine 8 is located above the counterweight 10. That is, since the vertical projection of the hoisting machine 8 and the vertical projection of the counterweight 10 overlap, the space of the hoistway can be saved. Further, since the vertical projection of the center of gravity of the hoisting machine 8 is located in the vicinity of the vertical projection of the pair of guide rails 15a and 15b of the counterweight 10, the hoisting machine 8 has a vertical projection via a support member (not shown). The load can be supported by the pair of guide rails 15 a and 15 b of the counterweight 10.

  According to the present embodiment as described above, because of 3: 1 roping, the suspension load is distributed to the three ropes, the suspension load to the return wheel is reduced, and the torque of the hoisting machine 8 is small. That's it. That is, since the strength member of the elevator apparatus and the hoisting machine 8 can be downsized, the effect of saving the hoistway space can be expected.

  Moreover, the position of the hoisting machine 8 can be adjusted by providing the second return wheels 7a and 7b. Specifically, the hoisting machine 8 can be arranged so that the vertical projection of the hoisting machine 8 is positioned between the vertical projection of the car 1 and the vertical projection of the hoistway wall 16. Further, since the vertical projection of the hoisting machine 8 does not overlap with the vertical projection of the car 1, the car 1 can be moved further upward, and as a result, the space above the hoistway can be saved. Further, in the present embodiment, the counterweight 10 and the hoisting machine 8 are arranged on the back of the car 1, so that it is effective when it is desired to increase the width dimension of the car 1 in the left-right direction as much as possible.

  Further, the car tie stop 3 and the car suspension 6 may be provided near the upper part of the side surface of the car 1, but the car tie stop 3 is provided near the lower part of the car 1 as in this embodiment. In this case, the adjustment work for absorbing the secular growth of the rope 5 can be easily performed at the pit at the lowermost part of the hoistway, which leads to improvement in maintenance workability.

  Further, unlike the present embodiment, the car tie stop 3 is installed on the lower side of the floor plate of the car 1 in a substantially horizontal direction and is provided at the lower right end of the floor board of the car 1. You may make it go to the 1st return wheel 4a through a car. According to this, even when it is necessary to lengthen the car tie-stop part 3, it becomes possible to shorten the vertical dimension of the car tie-stop part 3, and the upper and lower parts of the equipment below the floor of the car 1 The dimensions can be reduced.

  FIG. 3 is a diagram showing how the rope 5 of the elevator apparatus according to the second embodiment of the present invention is hung, and FIG. 4 is a plan sectional view of a hoistway in the elevator according to the present embodiment. Since the elevator apparatus of the present embodiment basically has the same configuration as that of the first embodiment, the description will be given with an emphasis on differences from the first embodiment.

  This embodiment is different from the first embodiment in the mounting angle of the second return wheels 7a and 7b and the arrangement positions of the hoisting machine 8 and the counterweight 10. Specifically, first, the vertical projection of the first return wheels 4a and 4b, the car suspension wheel 6, the second return wheel 7b, the drive sheave 9 of the hoisting machine 8, the counterweight suspension wheel 11 and the third The vertical projections of the return wheel 12 are arranged so as to be substantially perpendicular to each other. Further, the vertical projection of the second return wheel 7a is inclined with respect to the vertical projection of the first return wheels 4a and 4b, and is inclined with respect to the vertical projection of the car suspension vehicle 6 and the like. . A hoisting machine 8 and a counterweight 10 are arranged on the left side of the car 1. Here, the left side of the car 1 means the left part of the car 1 when viewed from the elevator landing side.

  Further, since the hoisting machine 8 is thin, even if the vertical projection of the drive sheave 9 is substantially parallel to the depth direction of the car 1, the hoisting machine 8 is in a limited space on the left side of the car 1. 8 can be arranged.

  According to the present embodiment, basically the same effect as that of the first embodiment can be achieved. Further, in this embodiment, the hoisting machine 8 and the counterweight 10 are arranged on the left side of the car 1, so that it is effective when the dimension in the depth direction of the car 1 is to be increased as much as possible. In this embodiment, the hoisting machine 8 or the like is arranged on the left side of the car 1, but it goes without saying that the hoisting machine 8 or the like is arranged on the right side of the car 1. I do not care.

  FIG. 5 is a diagram illustrating how the rope 5 of the elevator apparatus according to the third embodiment of the present invention is hung, and FIG. 6 is a plan sectional view of a hoistway in the elevator according to the present embodiment. Since the elevator apparatus of the present embodiment basically has the same configuration as that of the first embodiment, the description will be given with an emphasis on differences from the second embodiment.

  First, in this embodiment, there are second return wheels 7a, 7b, 7c made up of three return wheels, of which the second return wheel 7a is substantially parallel to the car suspension vehicle 6, The return wheels 7b and 7c are substantially parallel to the drive sheave 9 and the like. And the hoisting machine 8 is arrange | positioned at the lower part of the hoistway, and this hoisting machine 8 and the counterweight 10 are located in the back part of the passenger car 1 together. However, the vertical projection of the hoisting machine 8 does not overlap with the vertical projection of the counterweight 10.

  Next, how to hang the rope 5 in the elevator apparatus of the present embodiment will be described. First, the rope 5 turned upward through the car suspension wheel 6 is turned downward through the second return wheel 7 a and is wound around the drive sheave 9 of the hoisting machine 8. Further, the rope 5 extends upward and reaches the second return wheel 7b, and then extends substantially horizontally and is turned downward by another second return wheel 7c. The rope 5 is turned upward via the counterweight suspension wheel 11, reaches the counterweight rope stopper 13 via the third return wheel 12, and is fixed to the rope stopper 13.

  According to the present embodiment, basically the same effect as that of the first embodiment can be achieved. Furthermore, in this embodiment, there is an advantage that the hoisting machine 8 can be installed at an arbitrary position from the upper part to the lower part of the hoistway by using the space beside the counterweight 10. In this embodiment, the hoisting machine 8 and the counterweight 10 are arranged on the back of the car 1, but the hoisting machine 8 and the counterweight 10 are arranged on the left side of the car 1, as in the second embodiment. May be arranged.

  FIG. 7 is a diagram showing how the rope 5 of the elevator apparatus according to the fourth embodiment of the present invention is hung, and FIG. 8 is a plan sectional view of a hoistway in the elevator according to the present embodiment. Since the elevator apparatus of the present embodiment has a configuration close to that of the first embodiment, the following description will be given with an emphasis on differences from the first embodiment.

  In the present embodiment, a first car suspension car 19 and a second car suspension car 20 are attached to the car 1, and a first counterweight hanger 21 is mounted on the upper part of the counterweight 10. A second counterweight suspension wheel 22 is attached. That is, in the present embodiment, a system in which the car 1 and the counterweight 10 are hung by 4: 1 roping is adopted. Here, the first car suspension vehicle 19 is disposed so as to face the left side surface of the car 1, and the second car suspension vehicle 20 is disposed so as to face the right side surface opposite to the left side surface. Has been placed.

  A specific method of hanging the rope is as shown in FIG. 7. First, one end of the rope 5 is fixed to the rope stopper 17 at the upper part of the hoistway. Then, the rope 5 extends downward from the rope stopper 17 and is redirected through the second car suspension vehicle 20 to extend upward, and extends horizontally from the first return wheel 4a to the first return wheel. The direction is changed by 4b and extends downward. Further, the rope 5 is changed in direction through the first car suspension wheel 19 and extends upward, and is wound around the upper part of the second return wheel 7a, and is then attached to the lower part of the second return wheel 7b. Then, it is wound around the drive sheave 9 of the hoisting machine 8 and turns downward. Next, the rope 5 is turned upward via the first counterweight suspension wheel 21, then turned downward via the third return wheel 12, and the second counterweight suspension wheel 22. It is turned upward through And this rope 5 reaches the rope stop 18 at the upper part of the hoistway, and the other end of the rope 5 is fixed by this rope stop 18.

  According to this embodiment, substantially the same effect as that of the first embodiment can be achieved. Furthermore, in the present embodiment, the car 1 and the counterweight 10 are hung by 4: 1 roping, so that compared to the case of 3: 1 roping in the first embodiment, the strength member and hoisting of the elevator apparatus are increased. Since the machine 8 can be further downsized, the hoistway can be more space-saving.

  In this embodiment, the hoisting machine 8 and the counterweight 10 are arranged on the back of the car 1, but by changing the arrangement of the second return wheels 7a and 7b, the hoisting machine 8 and the like are It can also be arranged on the side of the car 1. That is, as in the above-described embodiment, the hoisting machine 8 and the balance can be placed at any position on the side or back according to the shape of the hoistway or the shape of the car 1 by devising the arrangement of the second return wheel. A weight 10 can be arranged to select a layout of equipment with good installation efficiency.

It is a figure which shows how to hang a rope in the elevator apparatus which shows the 1st Example of this invention. It is a plane sectional view of the hoistway of the elevator apparatus which shows the 1st example of the present invention. It is a figure which shows how to hook a rope in the elevator apparatus which shows the 2nd Example of this invention. It is plane sectional drawing of the hoistway of the elevator apparatus which shows the 2nd Example of this invention. It is a figure which shows how to hook a rope in the elevator apparatus which shows the 3rd Example of this invention. It is a plane sectional view of the hoistway of the elevator apparatus which shows the 3rd example of the present invention. It is a figure which shows how to hook a rope in the elevator apparatus which shows the 4th Example of this invention. It is a plane sectional view of the hoistway of the elevator apparatus which shows the 4th example of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Ride car, 2 ... Car door, 3 ... Ride stop part, 4a, 4b ... 1st return car, 5 ... Rope, 6 ... Ride car, 7a, 7b, 7c ... 2nd return car , 8 ... Hoisting machine, 9 ... Drive sheave, 10 ... Counterweight, 11 ... Counterweight suspension car, 12 ... Third return wheel, 13 ... Counterweight tether stop, 14a, 14b ... Car guide rail, 15a , 15b ... Balance weight guide rail, 16 ... Hoistway wall, 17, 18 ... Tight stop, 19 ... First car suspension car, 20 ... Second car suspension car, 21 ... First counterweight suspension Car, 22 ... Second counterweight suspension car.

Claims (3)

In an elevator apparatus in which a car and a counterweight suspended by a rope in a hoistway are driven by a hoisting machine, a car suspension car attached to the car so as to face the side of the car, and A tie-down portion attached to the counterweight, a counterweight suspension attached to the upper portion of the counterweight, and a counterweight tie-down portion attached to the counterweight ,
The hoisting machine is thin, and the vertical projection of the hoisting machine is located between the vertical projection of the car and the vertical projection of the hoistway wall;
The car tie-fastening portion is located in the vicinity of a side surface opposite to the side face facing the car suspension vehicle, and the rope has one end fixed to the car tie-fastening portion, and The rope extends upward from the car tie stop and turns downward via a first return wheel, turns upward via a suspension car of the car, and passes through a second return wheel. It is wound around the hoisting machine and turns downward, turns upward via the counterweight suspension wheel, and reaches the counterweight rope stop portion via the third return wheel. This counterweight The elevator apparatus characterized by the other end of the said rope being fixed to the rope stop part . In an elevator apparatus in which a car and a counterweight suspended by a rope in a hoistway are driven by a hoisting machine, a first car suspension car attached to the car so as to face the side of the car A second car suspension car attached to the car so as to face the side opposite to the side of the car, and first and second counterweights attached to the upper part of the counterweight Equipped with a hanging car ,
The hoisting machine is thin, and the vertical projection of the hoisting machine is located between the vertical projection of the car and the vertical projection of the hoistway wall;
One end of the rope is fixed to the first rope stop at the upper part of the hoistway, and the rope extends downward from the rope stop and extends upward via the first car suspension car. Turn, turn downwards via the first return wheel, turn upwards via the second car suspension, and wind around the hoisting machine via the second return wheel. The direction is changed downward, the direction is changed upward via the first counterweight suspension vehicle, the direction is changed downward via the third return wheel, and the direction is changed upward via the second counterweight suspension vehicle. The elevator apparatus is characterized in that the direction of the cable is changed to reach the second rope stopper at the upper part of the hoistway, and the other end of the rope is fixed to the second rope stopper . In any one of claims 1 or 2, wherein the second diverting pulley are elevator apparatus characterized by having at least two diverting pulley.

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