CN110709344A

CN110709344A - Elevator with a movable elevator car

Info

Publication number: CN110709344A
Application number: CN201780091547.9A
Authority: CN
Inventors: 金山泰裕; 西野克典; 中山彻也
Original assignee: Hitachi Ltd
Current assignee: Hitachi Ltd
Priority date: 2017-06-06
Filing date: 2017-06-06
Publication date: 2020-01-17
Anticipated expiration: 2037-06-06
Also published as: CN110709344B; WO2018225140A1; JP6738964B2; JPWO2018225140A1

Abstract

An elevator of the present invention includes a traction machine having a sheave, a load bearing beam, a main rope, a car, a counterweight, a car-side return sheave, and a counterweight-side return sheave. In the main rope, a first rope end portion as one end portion in the axial direction and a second rope end portion as the other end portion in the axial direction are fixed to the load beam. The load beam is disposed between the car and a wall surface of the hoistway in the horizontal direction. The traction machine is fixed on the top surface part of the lifting direction of the bearing beam, and the counterweight side return pulley is arranged on the bottom surface part of the lifting direction of the bearing beam.

Description

Elevator with a movable elevator car

Technical Field

The present invention relates to an elevator including a car that moves up and down in a hoistway installed in a building structure.

Background

In the related art, an elevator includes a car, a counterweight, a main rope suspended on pulleys provided in the car and the counterweight, and a hoisting machine for winding the main rope. Further, it is known to hang a main rope 2 times on a car and a counterweight 4: 1 elevator with rope hanging mode.

As conventional 4: an elevator of 1 rope suspension system has a structure described in patent document 1, for example. In patent document 1, a drive unit and a first deflecting roller are disposed on a mounting portion. Further, patent document 1 describes that the first cable fixing point and the second cable fixing point are disposed on the mounting portion.

In addition, as conventional 4: another example of the elevator of 1 rope suspension system is disclosed in patent document 2, for example. Patent document 2 describes that a car-side return sheave device and a counterweight-side return sheave device are disposed in an upper portion in a hoistway. Further, it is described that a portion of the main cable body extending from the first car suspending sheave device to the first end portion and a portion of the main cable body extending from the second car suspending sheave device to the drive sheave are disposed on opposite sides with respect to a widthwise central portion of the car in a vertical projection plane.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2005-263490

Patent document 2: international publication No. 2003/064309

Disclosure of Invention

Technical problem to be solved by the invention

However, in the techniques described in patent documents 1 and 2, the hoisting machine is disposed so as to protrude above the car in the direction of ascent and descent. Therefore, the car cannot be moved up and down to the vicinity of the hoisting machine, and the maintenance work and the replacement work of parts are very complicated.

In the technique described in patent document 1, the first deflecting roller of the counterweight-side return sheave is provided at the same height as the hoisting machine. Therefore, in order to perform maintenance work or replacement work of parts, it is necessary to horizontally displace the first deflecting roller from the hoisting machine. As a result, in the technique described in patent document 1, the length of the mounting portion that supports the hoisting machine and the first deflecting roller may be increased, and the size of the hoistway may be increased.

In view of the above problems, an object of the present invention is to provide an elevator capable of suppressing an increase in the size of a hoistway and facilitating maintenance work and replacement work of components.

Means for solving the problems

In order to solve the above problems and achieve the object, an elevator includes a hoisting machine having a sheave, a load beam, a main rope, a car, a counterweight, a car-side return sheave, and a counterweight-side return sheave. The bearing beam supports the traction machine. The main rope is wound around the sheave. In addition, the main rope has a first rope end portion as one end portion in the axial direction and a second rope end portion as the other end portion in the axial direction fixed to the load beam. The car has a plurality of car-side sheaves on which a main rope is hung, and moves up and down in the hoistway. The counterweight is provided with a first counterweight side pulley and a second counterweight side pulley which are hung with a main rope. The car-side return pulley is provided on the side opposite to the bearing beam across the car, and a main rope is hung. The counterweight side return pulley is arranged on the bearing beam and is hung on the main rope cable hung on the first counterweight side pulley and the second counterweight side pulley. The load beam is disposed between the car and a wall surface of the hoistway in the horizontal direction. The traction machine is fixed on the top surface part of the lifting direction of the bearing beam, and the counterweight side return pulley is arranged on the bottom surface part of the lifting direction of the bearing beam.

Effects of the invention

According to the elevator with the structure, the maintenance inspection operation and the component replacement operation can be easily carried out while the size of the hoistway is restrained from increasing.

Drawings

Fig. 1 is a schematic configuration diagram showing an elevator according to an embodiment.

Fig. 2 is a side view showing a structure of a counterweight side in an elevator according to an embodiment.

Fig. 3 is a side view showing the structure of the elevator and the car side of the embodiment.

Fig. 4 is a plan view of an elevator according to the embodiment.

Detailed Description

Hereinafter, an elevator according to an embodiment will be described with reference to fig. 1 to 4. In addition, the same reference numerals are given to the common components in the drawings.

1. Example of Elevator construction

First, the structure of an elevator according to an embodiment (hereinafter referred to as "this example") will be described with reference to fig. 1 to 4.

Fig. 1 is a schematic configuration diagram showing a configuration example of an elevator of this example. Fig. 2 is a side view showing a structure of a counterweight side in the elevator of this example. Fig. 3 is a side view showing a structure of the car side in the elevator of this example. Fig. 4 is a plan view showing the elevator of this example.

An elevator 1 shown in fig. 1 is an elevator in which a car is raised and lowered in one hoistway 110 formed in a building structure. In addition, the elevator 1 shown in fig. 1 is 4: 1 elevator with rope hanging mode.

As shown in fig. 1 and 2, the elevator 1 includes a car 120 on which a person or a load is loaded, a counterweight 140, a main rope 130, a car-side return sheave 13, a counterweight-side return sheave 14, and a hoisting machine 100. As shown in fig. 2 and 3, the elevator 1 includes a load beam 150 provided at the top of the hoistway 110, 2 car-

side guide rails

160A and 160B, and 2 counterweight-

side guide rails

170A and 170B.

[ Car ]

The car 120 is formed in a hollow substantially rectangular parallelepiped shape. As shown in fig. 4, an opening is provided in one surface of the car 120. The car 120 is provided with a car side door 121 that openably closes an opening. The car side door 121 of the car 120 faces the doorway 201 provided in the building structure. A building side door 202 is openably and closably attached to the doorway 201.

Here, a direction orthogonal to the direction in which the car 120 ascends and descends and also orthogonal to the direction in which the car side door 121 and the building side door 202 face each other is set as the first direction X. A direction orthogonal to the direction in which the car 120 ascends and descends and also orthogonal to the first direction X, that is, a direction parallel to the direction in which the car side door 121 and the building side door 202 face each other is set as the second direction Y.

Further, car-

side rails

160A and 160B are disposed on both sides of the car 120 in the first direction X. Here, a line connecting the 2 car-

side rails

160A and 160B along the first direction X is assumed as a guide line 160C.

As shown in fig. 2 and 3, the car-

side rails

160A and 160B are provided standing upright in the hoistway 110 in the ascending/descending direction. The car 120 is slidably supported by the car-

side rails

160A and 160B. The car 120A moves in the up-down direction along the car-

side rails

160A and 160B.

As shown in fig. 3, a working frame 123 is provided above the car 120 in the lifting direction. Further, a first car-side sheave 15, a second car-side sheave 16, a third car-side sheave 17, and a fourth car-side sheave 18 are rotatably provided at a lower portion of the car 120 in the lifting direction. The axial directions of the first car-side sheave 15, the second car-side sheave 16, the third car-side sheave 17, and the fourth car-side sheave 18 are arranged parallel to the second direction Y.

The first car-side sheave 15 and the third car-side sheave 17 are disposed at one end portion of the car 120 in the first direction X, and the second car-side sheave 16 and the fourth car-side sheave 18 are disposed at the other end portion of the car 120 in the first direction X. The first car-side sheave 15 and the third car-side sheave 17 face each other in the second direction Y, and the second car-side sheave 16 and the fourth car-side sheave 18 face each other in the second direction Y.

Further, the first car-side sheave 15 and the second car-side sheave 16 are disposed so as to face each other in the first direction X with the car 120 interposed therebetween. The third car-side sheave 17 and the fourth car-side sheave 18 are disposed so as to face each other in the first direction X with the car 120 interposed therebetween.

The distance t1 in the second direction Y from the first car-side sheave 15 and the second car-side sheave 16 to the guide line 160C and the distance t2 in the second direction Y from the third car-side sheave 17 and the third car-side sheave 18 to the guide line 160C are set to be the same length. Thus, the car 120 can be supported in a balanced manner by the 2 car-

side rails

160A and 160B and the first, second, third, and fourth car-

side sheaves

15, 16, 17, and 18.

Further, a load beam 150 is disposed on one side of the car 120 in the first direction X, and a car-side return sheave 13 is disposed on the other side of the car 120 in the first direction X. The load beam 150 and the car-side return sheave 13 are provided at the top in the lifting direction of the hoistway 110.

The car-side return sheave 13 is disposed between the car 120 and a wall surface 111 of the hoistway 110 at the top of the hoistway 110. The car-side return sheave 13 is disposed between the second car-side sheave 16 and the fourth car-side sheave 18 above in the vertical direction. Further, the axial direction of the car-side return sheave 13 is arranged parallel to the first direction X.

[ spandrel girder ]

The load beam 150 is disposed between the car 120 and the wall surface 111 of the hoistway 110 at the top of the hoistway 110. Therefore, the load beam 150 is disposed outside the first direction X and the second direction Y in the ascending and descending direction of the car 120. The load beam 150 is provided with the hoisting machine 100 and the counterweight-side return sheave 14. Further, a first cable end portion 11, which is one end portion in the axial direction of the main cable 130, and a second cable end portion 12, which is the other end portion in the axial direction of the main cable 130, are fixed to the load beam 150.

[ traction machine ]

As shown in fig. 2 and 3, the hoisting machine 100 is supported by the top surface portion 150a of the bearing beam 150, and the counterweight-side return sheave 14 is rotatably supported by the bottom surface portion 150b of the bearing beam 150. The counterweight-side return sheave 14 is disposed in the axial direction parallel to the first direction X. This prevents the hoisting machine 100 from interfering with the maintenance inspection and replacement work of the counterweight-side return pulley 14, and enables the maintenance inspection work and the replacement work of components to be performed on the counterweight-side return pulley 14.

As shown in fig. 2 and 4, the hoisting machine 100 is disposed on the car 120 side of the load beam 150, i.e., on the other end portion in the first direction X. The counterweight-side return sheave 14 is disposed on the wall surface 111 side of the hoistway 110 of the load beam 150, i.e., at one end in the first direction X.

The hoisting machine 100 has a sheave 101 around which a main rope 130 is wound. The axial direction of the sheave 101 is arranged parallel to the first direction X. The hoisting machine 100 is fixed to the load beam 150 such that the sheave 101 faces the car 120 opposite to the wall surface 111 of the hoistway 110, i.e., the other side in the first direction X.

The sheave 101 is disposed on the first direction X side, i.e., on the wall surface 111 side of the hoistway 110, with respect to the car-side guide rail 160A that slidably supports the car 120. That is, the sheave 101 and the car 120 can be prevented from interfering with each other. As a result, the car 120 can be raised to the vicinity of the hoisting machine 100. Maintenance inspection work and component replacement work of the hoisting machine 100 can be easily performed. Further, since the car 120 can be raised to the vicinity of the hoisting machine 100, an increase in the size from the hoisting machine 100 to the top of the hoistway 110 can be suppressed.

The first cable end 11 is disposed at one end of the load beam 150 in the second direction Y, and the second cable end 12 is disposed at the other end of the load beam 150 in the second direction Y. Therefore, the hoisting machine 100 and the counterweight-side return sheave 14 are disposed between the first rope end portion 11 and the second rope end portion 12.

Further, the first rope end portion 11 and the second rope end portion 12 are disposed on the car 120 side of the load beam 150, that is, the other end portion in the first direction X, similarly to the hoisting machine 100. In addition, the interval h3 from the first cable end 11 to the car 120 in the first direction X and the interval h4 from the second cable end 12 to the car 120 in the first direction X are set to be equal.

This allows the first rope end 11, the second rope end 12, and the hoisting machine 100 to be brought close to the car 120, and maintenance work and replacement work of parts can be easily performed from the car 120.

As described above, in the elevator 1 of this example, the first rope end portion 11, the second rope end portion 12, and the counterweight-side return sheave 14 are disposed together on the load beam 150 to which the hoisting machine 100 is fixed. The maintenance inspection work and the replacement work of the components of the hoisting machine 100, the first rope end portion 11, the second rope end portion 12, and the counterweight-side return sheave 14 can be performed together.

The main rope 130 hanging down from the first rope end portion 11 is hung on the first counterweight-side sheave 21 provided in the counterweight 140.

[ counter weight ]

The counterweight 140 is disposed on one side of the car 120 in the first direction X. The counterweight 140 is slidably supported by 2 counterweight-

side guide rails

170A, 170B. The 2 counterweight-

side guide rails

170A, 170B are disposed on both sides of the counterweight 140 in the second direction Y. Here, a line connecting the 2 counterweight-

side guide rails

170A, 170B along the second direction Y is assumed as the guide line 170C.

The 2 counterweight-

side guide rails

170A and 170B are provided upright in the hoistway 110 in the ascending/descending direction. Thereby, the counterweight 140 moves in the vertical direction along the counterweight-

side guide rails

170A, 170B.

In addition, the counterweight 140 has a first counterweight-side sheave 21 and a second counterweight-side sheave 22. The first counterweight-side pulley 21 and the second counterweight-side pulley 22 are rotatably supported at an upper portion in the lifting direction of the counterweight 140. The first counterweight-side pulley 21 is disposed at the other end portion of the counterweight 140 in the second direction Y, and the second counterweight-side pulley 22 is disposed at one end portion of the counterweight 14 in the second direction Y.

As shown in fig. 4, the axial center 21C of the first counterweight-side pulley 21 and the axial center 22C of the second counterweight-side pulley 22 are arranged obliquely with respect to the first direction X and the second direction Y and the guide line 170C. The axial center 21c of the first counterweight-side sheave 21 and the axial center 22c of the second counterweight-side sheave 22 are arranged parallel to each other.

The guide wire 170C passes through the axial center 21C of the first counterweight-side pulley 21 and the axial center 22C of the second counterweight-side pulley 22. Thereby, the counterweight 140 can be supported in a balanced manner by the 2 counterweight-

side guide rails

170A and 170B, the first counterweight-side sheave 21, and the second counterweight-side sheave 22.

2. Hanging sequence of main rope

Next, the procedure of hanging the main rope 130 will be described.

The first cable end 11 of the main cable 130 hangs down from the load beam 150 in the lifting direction. The main rope 130 hanging from the load beam 150 is hung on the third car-side sheave 17. Then, the main rope 130 hooked on the third car-side sheave 17 passes below the elevator car 120 in the vertical direction in the first direction X, and is hooked on the fourth car-side sheave 18.

The main rope 130 hooked on the fourth car-side sheave 18 ascends in the ascending/descending direction and is hooked on the car-side return sheave 13. The main rope 130 hangs down in the up-down direction from the car-side return sheave 13, is hung on the second car-side sheave 16, passes below the car 120 in the up-down direction in the first direction X, and is hung on the first car-side sheave 15.

The main rope 130 suspended on the first car-side sheave 15 rises in the ascending/descending direction and is wound around the sheave 101 of the hoisting machine 100. The main rope 130 wound around the sheave 101 hangs down in the up-down direction and is hooked on the second counterweight-side sheave 22 of the counterweight 140. The main rope 130 rises in the ascending/descending direction from the second counterweight-side sheave 22, and is hung on the counterweight-side return sheave 14.

The main rope 130 hooked on the counterweight-side return pulley 14 hangs down in the vertical direction and is hooked on the first counterweight-side pulley 21 of the counterweight 140. Then, the main rope 130 suspended from the first counterweight-side pulley is lifted in the lifting direction, and the second rope end 12 as the other end thereof is fixed to the load beam 150. Thereby, the car 120 and the counterweight 140 move in the ascending and descending direction by the driving of the hoisting machine 100.

3. Detailed positional relationship of pulleys

Next, a detailed positional relationship of the pulleys of the elevator 1 having the above-described configuration will be described. Here, the ends of the main rope 130, which are hung on the pulleys, to be introduced and led out are referred to as a first introduction and lead-out portion and a second introduction and lead-out portion. The first introduction/discharge section and the second introduction/discharge section are located at both ends of each pulley in the radial direction.

The first introduction/discharge portion 21a of the first counterweight-side sheave 21 and the second introduction/discharge portion 22b of the second counterweight-side sheave 22 are disposed closer to the car 120 than the wall surface 111 of the hoistway 110 in the first direction X.

Further, the first introduction/discharge portion 21a of the first counterweight-side sheave 21 and the second introduction/discharge portion 22B of the second counterweight-side sheave 22 are disposed closer to the car 120 in the first direction X than the guide line 170C of the 2 counterweight-

side guide rails

170A and 170B. The first introduction/discharge portion 21a of the first counterweight-side sheave 21 is disposed below the second rope end portion 12 in the vertical direction. Therefore, the second rope end portion 12 can be brought closer to the car 120 than the counterweight-

side guide rails

170A, 170B, and maintenance inspection work and replacement work of parts can be easily performed.

As described above, the interval h3 of the first rope end 11 to the car 120 in the first direction X and the interval h4 of the second rope end 12 to the car 120 in the first direction X are set to be equal. Therefore, the first rope end portion 11 can be also positioned closer to the car 120 than the counterweight-

side guide rails

170A and 170B, and maintenance inspection work and replacement work of parts can be easily performed.

Further, by bringing the second rope end portion 12 close to the car 120, the interval t3 in the second direction Y from the second rope end portion 12 to the wall surface 111 can be shortened. As a result, an increase in the size of the hoistway 110 can also be suppressed.

Further, the axial centers 21C and 22C of the first counterweight-side pulley 21 and the second counterweight-side pulley 22 are arranged obliquely with respect to the first direction X and the second direction Y and the guide line 170C. Thus, the interval h1 between the car 120 and the wall surface 111 of the hoistway 110 in the first direction X can be shortened as compared with a case where the axial centers 21c and 22c of the first counterweight-side sheave 21 and the second counterweight-side sheave 22 are arranged parallel to the second direction Y.

Further, the second introduction/discharge portion 21B of the first counterweight-side sheave 21 and the first introduction/discharge portion 22a of the second counterweight-side sheave 22 are disposed closer to the wall surface 111 in the first direction X than the guide line 170C of the 2 counterweight-

side guide rails

170A and 170B. Therefore, the interval between the 2 counterweight-

side guide rails

170A, 170B can be shortened, and the length h2 of the counterweight 140 in the first direction X can be made longer.

In addition, the positions and inclinations of the first counterweight-side pulley 21 and the second counterweight-side pulley 22 can be easily determined with reference to the 2 counterweight-

side guide rails

170A and 170B.

Further, the first introduction/discharge portion 14a of the counterweight-side return sheave 14 is disposed above the second introduction/discharge portion 21b of the first counterweight-side sheave 21 in the ascending/descending direction. The second introduction/discharge portion 14b of the counterweight-side return sheave 14 is disposed above the first introduction/discharge portion 22a of the second counterweight-side sheave 22 in the ascending/descending direction.

As described above, the axial centers 21c and 22c of the first counterweight-side sheave 21 and the second counterweight-side sheave 22 are disposed obliquely with respect to the first direction X and the second direction Y, whereby the counterweight-side return sheave 14 can be brought closer to the car 120 in the first direction X. This makes it possible to easily perform maintenance inspection work and replacement work of components for the counterweight-side return sheave 14.

As shown in fig. 2 and 4, the counterweight-side return sheave 14 can be disposed below the load beam 150 in the lifting/lowering direction of the hoisting machine 100. As a result, the length of the load beam 150 in the second direction Y can be shortened, and an increase in the size of the hoistway 110 in which the load beam 150 is installed can be suppressed.

Further, the first introduction/discharge portion 101a of the sheave 101 of the hoisting machine 100 is disposed above the second introduction/discharge portion 22b of the second counterweight-side sheave 22 in the lifting/lowering direction. Further, the first introduction/discharge portion 15a of the first car-side sheave 15 is disposed below the second introduction/discharge portion 101b of the sheave 101 in the ascending/descending direction. The second introduction/discharge portion 15b of the first car-side sheave 15 faces the first introduction/discharge portion 16a of the second car-side sheave 16 in the first direction X.

The first introduction/discharge portion 13a of the car-side return sheave 13 is disposed above the second introduction/discharge portion 16b of the second car-side sheave 16 in the ascending/descending direction, and the first introduction/discharge portion 18a of the fourth car-side sheave 18 is disposed below the second introduction/discharge portion 13b of the car-side return sheave 13 in the ascending/descending direction. The second introduction/discharge portion 18b of the fourth car-side sheave 18 faces the first introduction/discharge portion 17a of the third car-side sheave 17 in the first direction X. The first rope end portion 11 is disposed above the second introduction/discharge portion 17b of the third car-side sheave 17 in the lifting direction.

The first introduction/discharge portion 15a of the first car-side sheave 15 and the second introduction/discharge portion 17b of the third car-side sheave 17 face each other in the second direction Y. Therefore, the distance h5 in the first direction X from the second introduction/discharge portion 101b of the sheave 101 of the hoisting machine 100 to the car 120 can be made substantially equal to the distance h3 in the first direction X from the first rope end 11 to the car 120. This makes it possible to substantially equalize the intervals between the sheave 101, the first rope end 11, and the second rope end 12 of the hoisting machine 100 and the car 120. As a result, the work on the hoisting machine 100, the first rope end portion 11, and the second rope end portion 12 can be easily performed from the car 120.

In the above embodiment, the example in which the car is moved up and down in the vertical direction, that is, in the vertical direction, has been described, but the present invention is not limited to this.

In the present specification, terms such as "parallel" and "orthogonal" are used, but they do not mean "parallel" and "orthogonal" strictly, and include "parallel" and "orthogonal" and may be in a state of "substantially parallel" and "substantially orthogonal" within a range in which the functions thereof can be exhibited.

Description of the reference numerals

1 … … elevator, 11 … … first rope end, 12 … … second rope end, 13 … … car-side return pulley, 14 … … counterweight-side return pulley, 14a … … first introduction and discharge section, 14b … … second introduction and discharge section, 15, 16, 17, 18 … … car-side pulley, 21 … … first counterweight-side pulley, 21a … … first introduction and discharge section, 21b … … second introduction and discharge section, 21c … … axial center, 22 … … second counterweight-side pulley, 22a … … first introduction and discharge section, 22b … … second introduction and discharge section, 22c … … axial center, 100 … … hoisting machine, 101 … … sheave, 101a … … first introduction and discharge section, 101b … … second introduction and discharge section, 110 … … hoistway, 111 … … wall surface, 120 … … car, 121 … … car, 130 side door, 130 … … main rope, 150a 637 bearing beam 150 … …, 150a … … top surface section, … … bottom surface section, 160A, 160B … … car side rails, 170A, 170B … … counterweight side rails, 170C … … guide lines, 201 … … doorway, 202 … … building side door, X … … first direction, Y … … second direction.

Claims

1. An elevator, characterized by comprising:

a traction machine having a sheave;

a bearing beam for supporting the traction machine;

a main rope wound around the sheave, the main rope having a first rope end portion as one end in an axial direction and a second rope end portion as the other end in the axial direction fixed to the load beam;

a car having a plurality of car-side sheaves for hanging the main rope, and being movable up and down in a hoistway;

a counterweight having a first counterweight-side pulley and a second counterweight-side pulley for hanging the main rope;

a car-side return sheave that is provided on the opposite side of the load beam across the car and on which the main rope is hung; and

the counterweight side return pulley is arranged on the bearing beam and is used for hanging a main rope cable hung on the first counterweight side pulley and the second counterweight side pulley,

the load beam is disposed between the car and a wall surface of the hoistway in a horizontal direction,

the traction machine is fixed on the top surface part of the bearing beam in the lifting direction,

the counterweight side return pulley is arranged on the bottom surface part of the bearing beam in the lifting direction.

2. The elevator according to claim 1, characterized in that:

in a first direction orthogonal to a lifting direction of the car and also orthogonal to a direction in which the car side door is opposed to a building side door of a building structure, and a second direction orthogonal to both the first direction and the lifting direction,

the hoisting machine, the first rope end portion, and the second rope end portion are disposed closer to the car than an end portion on a wall surface side of the hoistway in the first direction of the load beam,

the counterweight-side return sheave is disposed closer to an end of the hoistway on a wall surface side than an end of the load beam on the car side in the first direction.

3. An elevator according to claim 2, characterized in that:

the first counterweight-side pulley and the second counterweight-side pulley are disposed such that axial centers thereof are inclined with respect to both the first direction and the second direction.

4. An elevator according to claim 3, characterized in that:

the first counterweight-side pulley and the second counterweight-side pulley are disposed so that their axial centers are parallel to each other.

5. An elevator according to claim 3, characterized in that:

the first counterweight side pulley has a lead-in and lead-out part for hanging the main rope hanging from the end part of the second rope,

the introduction/discharge portion of the first counterweight-side sheave is disposed closer to the car in the first direction than a counterweight-side guide rail that slidably supports the counterweight.

6. An elevator according to claim 2, characterized in that:

the hoisting machine is configured such that an axis of the rope and an axis of the counterweight-side return sheave are parallel to the first direction.