WO2020100306A1

WO2020100306A1 - Elevator

Info

Publication number: WO2020100306A1
Application number: PCT/JP2018/042547
Authority: WO
Inventors: 啓太島林
Original assignee: 三菱電機株式会社
Priority date: 2018-11-16
Filing date: 2018-11-16
Publication date: 2020-05-22

Abstract

Provided is an elevator which allows a reduction in hoistway space without complicating a device configuration. In this elevator, a drive unit (7) is disposed between a side surface of a car (3) and a side wall (17a) of a hoistway (1) in a state in which a sheave unit (13) is facing the car (3) side, a counterweight (4) is disposed between the back surface of the car (3) and the back wall (18) of the hoistway (1), the end (13a) of the sheave unit (13) as viewed from the vertical direction protrudes further toward the back wall (18) than the back surface of the car (3), the end of the counterweight (4) as viewed from the vertical direction protrudes further toward the side wall (17a) than the side surface of the car (3), and a main rope (14) is passed around the sheave unit (13) subsequent to a car hanging wheel (10) and then around a weight hanging wheel (11), and is adapted to pass through a space between a weight guide rail (6a) that is disposed on the side wall (17a) side and a corner (19) where the side surface and the back surface of the car (3) intersect as viewed from the vertical direction.

Description

Elevator

This invention relates to elevators.

In an elevator without a machine room, for example, a driving machine and a counterweight are placed between the side of the car and the side wall of the hoistway. In this case, if the depth dimension of the hoistway is determined by the size of the drive and the counterweight, dead space may occur between the back of the car and the back wall of the hoistway. In order to reduce the space of the hoistway and effectively utilize the building space, for example, a counterweight may be arranged on the back side of the car. Patent Document 1 describes an example of an elevator of a type without a machine room.

Japanese Unexamined Patent Publication No. 2010-184791

In the elevator described in Patent Document 1, a counterweight is placed on the back side of the car. However, in this elevator, it is necessary to provide a turning pulley between the sheave of the driving machine and the car suspension. Therefore, the equipment configuration of the elevator becomes complicated.

This invention was made to solve the above problems. The purpose is to provide an elevator that can reduce the space of the hoistway without complicating the equipment configuration.

An elevator according to the present invention has a pair of car guide rails for guiding a car, a pair of weight guide rails for guiding a counterweight, a motor unit and a sheave unit, and a car vertically at the top of a hoistway. It is equipped with a drive machine installed outside the projection plane and a main rope for suspending the car and the counterweight.The drive machine has the sheave part facing the car side and the motor part of the hoistway when viewed from the vertical direction. In a state of facing the side wall, it is arranged between the side surface of the car and the side wall, and the counterweight is arranged between the rear surface of the car and the rear wall of the hoistway when viewed from the vertical direction, The end of the sheave seen from the vertical direction protrudes toward the back wall side from the back of the car, and the end of the counterweight seen from the vertical direction protrudes toward the side wall rather than the side face of the car. The main rope is wrapped around the sheave part of the car next to the car suspension car, and is wrapped around the balance car weight suspension car next to the sheave part, and the sides and back of the car intersect when viewed from the vertical direction. It passes through the space between the corner and the weight guide rail arranged on the side wall side.

According to this invention, the counterweight is arranged between the rear surface of the car and the rear wall of the hoistway when viewed from the vertical direction. The main rope is wrapped around the sheave part of the car next to the car suspension car, and is wrapped around the balance car weight suspension car next to the sheave part, and the sides and back of the car intersect when viewed from the vertical direction. It passes through the space between the corner and the weight guide rail arranged on the side wall side. Therefore, the space of the hoistway can be reduced without complicating the equipment structure of the elevator.

FIG. 3 is a first top view of the elevator according to the first embodiment. FIG. 6 is a second top view of the elevator in the first embodiment. FIG. 3 is a view on arrow AA of FIG. 1 or FIG. 2.

Embodiments will be described below with reference to the accompanying drawings. In each drawing, the same or corresponding parts are designated by the same reference numerals. The overlapping description will be simplified or omitted as appropriate.

Embodiment 1.
FIG. 1 is a first top view of the elevator according to the first embodiment. FIG. 2 is a second top view of the elevator according to the first embodiment. FIG. 3 is a view on arrow AA of FIG. 1 or FIG.

1 to 3 exemplify the structure in the hoistway 1 of a rope type elevator without a machine room. In each figure, the landing 2 is located on the left side of the hoistway 1.

The elevator includes a car 3, a counterweight 4, a pair of car guide rails 5, a pair of weight guide rails 6, a driving machine 7, a machine base 8 and a control panel 9. Below the car 3, for example, two car suspension cars 10 are provided. On the upper part of the counterweight 4, for example, two weight suspension wheels 11 are provided. The drive machine 7 has a motor section 12 and a sheave section 13.

A main rope 14 is wound around the basket 3, the counterweight 4, and the sheave portion 13. One end of the main rope 14 is fixed in the hoistway 1 by a car side rope stopper 15. The other end of the main rope 14 is fixed in the hoistway 1 by a weight side rope stopper 16. The main rope 14 is, for example, a plurality of ropes.

The car 3 is suspended in the hoistway 1 by the main rope 14 via the car suspension vehicle 10. The counterweight 4 is suspended in the hoistway 1 by the main rope 14 via the weight suspension vehicle 11. The car 3 and the counterweight 4 are moved up and down by the operation of the driving machine 7. The car 3 is guided by a car guide rail 5. The counterweight 4 is guided by a weight guide rail 6. The driving machine 7 is controlled by the control panel 9.

Fig. 1 shows the inside of the hoistway 1 as seen from above the drive unit 7. In FIG. 1, the main rope 14 is not shown.

FIG. 2 shows the inside of the hoistway 1 viewed from the height of the lower end of the machine base 8. In FIG. 2, the main rope 14 is shown.

The pair of car guide rails 5 face each other along the frontage of the hoistway 1. The pair of car guide rails 5 are arranged, for example, in front of the center of the hoistway 1 in the depth direction.

A car guide rail 5a and a car guide rail 5b are provided as the car guide rails 5. The car guide rail 5a is arranged on one side wall 17a of the hoistway 1 with respect to the car 3 when viewed in the vertical direction. The car guide rail 5b is arranged on the side of the other side wall 17b of the hoistway 1 with respect to the car 3 when viewed in the vertical direction.

As the car suspension car 10, a car suspension car 10a and a car suspension car 10b are provided. The car suspension vehicle 10a is disposed on the side of one side wall 17a of the hoistway 1 at the bottom of the car 3 when viewed in the vertical direction. The car suspension vehicle 10b is arranged on the other side wall 17b of the hoistway 1 at the lower part of the car 3 when viewed in the vertical direction.

The two car suspension cars 10 are arranged, for example, so that the axial direction is perpendicular to the back surface of the car 3. The two car suspension vehicles 10 face each other along the frontage direction of the hoistway 1, for example. Seen from the vertical direction, the straight line connecting the two car suspension cars 10 is, for example, parallel to the straight line connecting the pair of car guide rails 5.

The pair of weight guide rails 6 face each other in the frontage direction of the hoistway 1. The pair of weight guide rails 6 are arranged, for example, behind the center of the hoistway 1 in the depth direction.

As the weight guide rail 6, a weight guide rail 6a and a weight guide rail 6b are provided. The weight guide rail 6a is arranged on one side wall 17a of the hoistway 1 with respect to the counterweight 4 when viewed in the vertical direction. The weight guide rail 6b is disposed on the other side wall 17b of the hoistway 1 with respect to the counterweight 4 when viewed in the vertical direction. The weight guide rail 6b is arranged apart from the weight guide rail 6a by a distance corresponding to the width of the counterweight 4, when viewed from the vertical direction.

The driving machine 7 is arranged at the top of the hoistway 1. The drive machine 7 is arranged outside the vertical projection plane of the car 3. The driving machine 7 is installed on the machine base 8. The machine base 8 is supported by a car guide rail 5a and a weight guide rail 6a. That is, the driving machine 7 is supported by the car guide rail 5 a and the weight guide rail 6 a via the machine base 8.

The car guide rail 5a is not located, for example, in the horizontal projection plane of the machine base 8. The weight guide rail 6a is located, for example, in the horizontal projection plane of the machine base 8.

The driving machine 7 is arranged between one side surface of the car 3 and the side wall 17 a of the hoistway 1 when viewed in the vertical direction. The drive machine 7 is arranged with the sheave 13 facing the car 3 and the motor 12 facing the side wall 17a of the hoistway 1. The driving machine 7 is arranged, for example, so that the axial direction of the sheave 13 is perpendicular to the side surface of the car 3. The drive machine 7 is arranged, for example, such that the radial direction of the sheave portion 13 is parallel to the side surface of the car 3. The drive machine 7 is arranged, for example, so that the end portion 13a in the radial direction of the sheave portion 13 when viewed from the vertical direction protrudes toward the rear wall 18 of the hoistway 1 from the rear surface of the car 3.

The drive machine 7 is, for example, formed such that the axial length of the sheave portion 13 is shorter than the radial length of the sheave portion 13 when viewed from the vertical direction. That is, the driving machine 7 has, for example, a flat shape. The distance between one side surface of the car 3 and the side wall 17a of the hoistway 1 facing each other is determined according to, for example, the thickness dimension of the sheave 13 of the drive machine 7 in the axial direction.

The counterweight 4 is arranged between the rear surface of the car 3 and the rear wall 18 of the hoistway 1 when viewed from the vertical direction. The counterweight 4 is arranged closer to the side wall 17a than the center of the hoistway 1 in the frontage direction, for example. The end portion of the counterweight 4 when viewed from the vertical direction is arranged so as to project to the side wall 17a side more than one side surface of the car 3, for example.

As the weight suspension vehicle 11, a weight suspension vehicle 11a and a weight suspension vehicle 11b are provided. The weight suspension vehicle 11a is arranged on the one side wall 17a of the hoistway 1 at the upper part of the counterweight 4 when viewed in the vertical direction. The weight suspension vehicle 11b is arranged on the other side wall 17b of the hoistway 1 at the upper part of the counterweight 4 when viewed in the vertical direction.

The two weight suspension wheels 11 are located, for example, in the horizontal projection plane of the counterweight 4. The two weight suspension vehicles 11 face each other along the frontage direction of the hoistway 1, for example. The two weight suspension wheels 11 are arranged, for example, so that the axial direction is perpendicular to the back surface of the car 3. Seen from the vertical direction, the straight line connecting the two weight suspension cars 11 is, for example, parallel to the straight line connecting the pair of car guide rails 5. Seen from the vertical direction, the straight line connecting the two weight suspension cars 11 is, for example, parallel to the straight line connecting the two car suspension cars 10. The radial end of the weight suspension vehicle 11a when viewed from the vertical direction is arranged, for example, so as to protrude toward the side wall 17a rather than one side surface of the car 3.

In order to project the end of the counterweight 4 and the end of the weight suspension vehicle 11a viewed from the vertical direction toward the side wall 17a, the weight guide rail 6a is smaller than the car guide rail 5a to a size that can be locally constructed. It is arranged close to the side wall 17a. The weight guide rails 6a are arranged on the side wall 17a side by a distance calculated by the following equation (1) with reference to the position of the car guide rails 5a in the front direction, for example.

"Distance between the car guide rail and the weight guide rail on the drive side (direction of the frontage of the hoistway)" = "Distance required depending on the thickness of the drive"-"Distance required for construction of the weight guide rail"・ (1)

The control panel 9 is arranged at the top of the hoistway 1, for example. The control panel 9 is arranged, for example, between the back surface of the car 3 and the back wall 18 of the hoistway 1 when viewed in the vertical direction. The control panel 9 is arranged, for example, between the weight guide rail 6b and the side wall 17b of the hoistway 1 when viewed in the vertical direction.

The car side rope stopper 15 is located, for example, above the end of the car suspension vehicle 10b. The weight-side rope fastening portion 16 is located, for example, above the end portion of the weight suspension vehicle 11b.

One end of the main rope 14 is fixed by a car side rope stop portion 15, and the car suspension vehicle 10b, the car suspension vehicle 10a, the sheave portion 13, the weight suspension vehicle 11a, and the weight suspension vehicle 11b are wound in this order, and the weight side rope The other end is fixed by the stopper 16. No turning pulleys are used in the roping of the main ropes 14.

As described above, the one weight guide rail 6a arranged on the one side wall 17a side is arranged closer to the side wall 17a than the one car guide rail 5a arranged on the same side. Therefore, the main ropes 14 do not interfere with the car 3 and the weight guide rails 6a when moving between the sheave 13 and the weight suspension vehicle 11a, and one side surface of the car 3 when viewed from the vertical direction. Passes through the space between the corner portion 19 where the rear surface and the back surface intersect with the weight guide rail 6a.

According to the first embodiment described above, in the driving machine 7, the sheave portion 13 faces the car 3 side and the motor portion 12 faces one side wall 17a of the hoistway 1 when viewed in the vertical direction. In the opened state, it is arranged between one side surface of the car 3 and one side wall 17a. The counterweight 4 is arranged between the rear surface of the car 3 and the rear wall 18 of the hoistway 1 when viewed in the vertical direction. The end portion 13a of the sheave portion 13 as viewed from the vertical direction projects toward the rear wall 18 side rather than the rear surface of the car 3. The end portion of the counterweight 4 when viewed from the vertical direction protrudes toward one side wall 17a rather than one side surface of the car 3. One end of the main rope 14 is fixed by a car side rope stop portion 15 and the other end is fixed by a weight side rope stop portion 16. It is wound around and then wound around the weight suspension vehicle 11 of the counterweight 4 next to the sheave portion 13. When the main rope 14 moves between the sheave portion 13 and the weight suspension vehicle 11, the main rope 14 is provided on the side of the corner portion 19 where one side surface and the back surface of the car 3 intersect and the one side wall 17a when viewed from the vertical direction. It passes through the space between one of the arranged weight guide rails 6a. Therefore, it is not necessary to provide a turning pulley for roping. Further, it is not necessary to arrange the drive unit 7 or the weight suspension vehicle 11 in an inclined position when viewed from the vertical direction for roping. As a result, the space of the hoistway 1 can be reduced without complicating the equipment structure of the elevator. In addition, it is possible to prevent the life of the main ropes 14 from being shortened due to the increase in the number of times of bending.

Further, for example, the car suspension car 10 may be arranged so that the straight line connecting the two car suspension cars 10 is inclined with respect to the straight line connecting the pair of car guide rails 5 when viewed in the vertical direction. Specifically, the car suspension vehicle 10b may be disposed in front of the car suspension vehicle 10a in the depth direction of the hoistway 1. In this case, even if the depth dimension of the car 3 increases, the horizontal distance between the car suspension vehicle 10b and the car side rope stopper 15 can be kept constant.

The arrangement of the counterweight 4, the pair of car guide rails 5, the pair of weight guide rails 6, the drive machine 7, the machine base 8 and the control panel 9 is the same as that of the first embodiment as viewed from the hall 2 side. It may be left-right inverted. That is, the driving machine 7 may be arranged between the other side surface of the car 3 and the side wall 17b of the hoistway 1 when viewed in the vertical direction. The counterweight 4 may be arranged closer to the side wall 17b than the center in the frontage direction of the hoistway 1. Also in this case, the space of the hoistway 1 can be reduced without complicating the elevator device configuration.

As mentioned above, this invention can be applied to an elevator without a machine room.

1 hoistway 2 landing 3 car 4 counterweight 5 car guide rail 5a car guide rail 5b car guide rail 6 weight guide rail 6a weight guide rail 6b weight guide rail 7 drive 8 machine base 9 control panel 10 car suspension car 10a car Suspension vehicle 10b Car suspension vehicle 11 Weight suspension vehicle 11a Weight suspension vehicle 11b Weight suspension vehicle 12 Motor section 13 Sheave section 13a Sheave section end 14 Main rope 15 Car side rope stop section 16 Weight side rope stop section

17a Side wall

17b Side wall 18 Back wall 19 Corner

Claims

A pair of car guide rails that guide the car,
A pair of weight guide rails that guide the counterweight,
A drive unit that has a motor unit and a sheave unit, and is installed outside the vertical projection plane of the car at the top of the hoistway;
A main rope for suspending the car and the counterweight,
Equipped with
When viewed from the vertical direction, the driving machine is located between the side surface of the car and the side surface wall in a state where the sheave part faces the car side and the motor part faces the side wall of the hoistway. Placed in
The counterweight is arranged between the back surface of the car and the back wall of the hoistway when viewed from the vertical direction,
The end portion of the sheave portion as viewed in the vertical direction projects toward the rear wall side from the rear surface of the car,
The end portion of the counterweight viewed from the vertical direction projects toward the side wall rather than the side surface of the car,
The main rope is wound around the sheave part next to the car suspension car of the car, and is wrapped around the weight suspension car of the counterweight next to the sheave part, and the car is seen from the vertical direction. An elevator passing through a space between a corner portion where the side surface and the back surface intersect with each other and the weight guide rail arranged on the side wall side.
The elevator according to claim 1, wherein the drive machine is arranged so that an axial direction of the sheave part is perpendicular to the side surface of the car.
The elevator according to claim 1 or 2, wherein the driving machine is formed such that a length in an axial direction of the sheave portion is shorter than a length in a radial direction of the sheave portion when viewed from a vertical direction.
The elevator according to any one of claims 1 to 3, wherein the weight suspension vehicle is arranged so that an axial direction thereof is perpendicular to a back surface of the car.
The elevator according to any one of claims 1 to 4, wherein an end portion of the weight suspension car when viewed from the vertical direction projects toward the side wall rather than the side surface of the car.
The weight guide rail arranged on the side wall side is arranged closer to the side wall than the car guide rail arranged on the same side. Elevator.