WO2007060713A1

WO2007060713A1 - Hoist unit for elevator installation, and rope mounting method for elevator

Info

Publication number: WO2007060713A1
Application number: PCT/JP2005/021441
Authority: WO
Inventors: Naoyuki Maruyama; Kenichi Nakahashi
Original assignee: Mitsubishi Denki Kabushiki Kaisha
Priority date: 2005-11-22
Filing date: 2005-11-22
Publication date: 2007-05-31
Also published as: EP1953110A1; CN100590054C; JPWO2007060713A1; JP4810430B2; KR100989194B1; CN101268006A; EP1953110A4; KR20080046651A

Abstract

A hoist unit for elevator installation has an installation frame, a hoist provided on the installation frame, a leading line for passing an elevator car-suspending main rope over a drive sheave by pulling and moving the rope, and a holding device for holding opposite ends of the leading line relative to the installation frame. This enables the leading line to be held passed over the drive sheave, so that the leading line is prevented from coming out of the drive shave when the hoist unit is transported.

Description

Specification

Elevator installation hoist unit and elevator main rope winding method

TECHNICAL FIELD [0001] The present invention relates to a lifting machine unit for installing an elevator equipped with a lifting machine for raising and lowering a car and a counterweight, and a main rope winding method of the elevator. Background art

[0002] In a conventional elevator, in order to wrap a main rope around a driving sheave of a hoisting machine in a housing, a flat strip shaped lead member made of an elastic material is connected to the main rope, and an entrance hole of the housing A method has also been proposed in which the main strip is pushed against the driving sheave by pushing the leading strip into the housing, moving the leading strip along the inner surface of the housing, and pulling out the leading strip of the housing. Yes. In this conventional elevator, the main rope is wound around the driving sheave after the hoisting machine is installed in the hoistway (see Patent Document 1).

[0003] Patent Document 1: Japanese Patent Application Laid-Open No. 2002-362851

Disclosure of the invention

Problems to be solved by the invention

[0004] However, depending on the installation location of the hoisting machine, for example, the inner wall surface of the hoistway or the equipment provided in the hoistway may be in the way, making it difficult to pass the leading strip through the casing. Sometimes. Therefore, it takes time and effort to wrap the main rope around the drive sheave.

[0005] The present invention has been made to solve the above-described problems, and an elevator installation hoist unit capable of easily winding a main rope around a sheave, and a main rope winding of the elevator The purpose is to obtain a hanging method.

Means for solving the problem

[0006] An elevator installation hoisting machine unit according to the present invention has a mounting frame and a driving sheave, and is wound around the hoisting machine and the driving sheave provided on the mounting frame to suspend the power ladder. And a holding device for holding the both ends of the leading strip to the mounting frame. The leading strip is used to wrap the main rope around the driving sheave by moving the main rope while pulling the main rope.

Brief Description of Drawings FIG. 1 is a plan view showing a lift unit for elevator installation according to Embodiment 1 of the present invention.

FIG. 2 is a partial side view showing a state when the elevator installation hoist unit of FIG. 1 is installed at the upper part in the hoistway.

FIG. 3 is an enlarged view showing the connecting portion of FIG.

FIG. 4 is an enlarged view showing another example of a portion connecting the first lead strip and the first main rope of FIG.

FIG. 5 is an enlarged view showing another example of a portion connecting the first lead strip and the first main rope of FIG. 3.

FIG. 6 is a partial side view showing a lift unit for elevator installation according to Embodiment 2 of the present invention.

FIG. 7 is a partial side view showing a state where an elevator installation hoist unit according to Embodiment 3 of the present invention is installed at an upper part in a hoistway.

FIG. 8 is a plan view showing the guide device of FIG.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

Embodiment 1.

FIG. 1 is a plan view showing a lift unit for elevator installation according to Embodiment 1 of the present invention. In the figure, the elevator unit 1 for elevator installation is installed at the top of the hoistway when the elevator is installed. The cage and the counterweight (not shown) can be used for a plurality of first main cables and a plurality of second cables after the elevator unit 1 for elevator installation is installed in the upper part of the hoistway. It is suspended in the hoistway by the main rope.

[0009] The elevator installation elevator unit 1 includes a mounting frame 2, a unit mounting device 3 provided in the mounting frame 2, and a plurality of units for guiding each first main rope to the unit mounting device 3. It has a first leading strip 4 and a plurality of second leading strips 5 for guiding each second main rope to the unit-equipped device 3.

[0010] The unit-equipped equipment 3 includes a lifting machine 6, a first force side return wheel 9, a second force side return wheel 10, a first counterweight side return wheel 11, and a second balance. With weight side return wheel 12 and turning sheave 13 Yes. The lifting machine 6 has a lifting machine body 7 including a motor, and a driving sheave 8 that is rotated by the lifting machine body 7. The hoisting machine 6 is a thin hoisting machine in which the radial dimension is larger than the axial dimension of the driving sheave 8. The first force side return wheel 9, the second car side return wheel 10, the first counterweight side return wheel 11, the second counterweight side return wheel 12 and the turning sheave 13 are units. When the first and second main ropes are attached to the onboard equipment 3, the driven sheave is rotated as the driving sheave 8 rotates.

[0011] The rotation shafts of the first car side return wheel 9, the second car side return wheel 10, the first counterweight side return wheel 11, and the second counterweight side return wheel 12 are driven. It is arranged perpendicular to the rotation axis of the sheave 8.

[0012] On the outer peripheral portion of each sheave 8-13, a plurality of grooves are provided along the rotational direction of each sheave 8-13. Further, on each sheave 8 to 13, main rope stoppers 14 to 19 facing the outer periphery of the sheaves 8 to 13 are respectively attached.

[0013] Each first leading strip 4 and each second leading strip 5 are attached to the unit mounting device 3 by selectively striking each sheave 8 to 13. Each first leading strip 4 is continuously wound around a first counterweight-side return wheel 11, a driving sheave 8, and a first car-side return wheel 9. Each of the second leading strips 5 is continuously wound around the second counterweight side return wheel 12, the drive sheave 8, the turning sheave 13, and the second car side return wheel 10. Further, the bending stiffness of each first leading strip 4 and each second leading strip 5 is set lower than the bending stiffness of each main rope that suspends the car and the counterweight.

FIG. 2 is a partial side view showing a state when the elevator installation hoist unit 1 of FIG. 1 is installed at the upper part in the hoistway. In the figure, the mounting frame 2 is fixed to the inner wall surface of the hoistway 20. The hoisting machine 6 is arranged horizontally such that the direction of the rotational axis of the driving sheave 8 is vertical. Further, the lifting machine 6 is arranged so that the driving sheave 8 is above the lifting machine body 7. Thus, the driving sheave 8 faces the ceiling surface in the hoistway 20.

[0015] At one end of the first leading strip 4, the end of the first main rope 21 is connected to the connection portion 3 so as to guide the first main rope 21 placed on the landing 31 to the unit-equipped device 3. 22 is connected. The first lead 4 is pulled and moved in the direction of guiding the first main rope 21 to the unit-equipped device 3. That is, the first leading strip 4 is moved with its other end pulled, and pulls the first main rope 21 so as to be guided to the unit-equipped device 3. The first main rope 21 is moved together with the first leading strip 4 and continuously wound in the order of the first counterweight side return wheel 11, the driving sheave 8, and the first car side return wheel 9. It is hung.

In order to guide the second main rope to the unit mounting device 3, the end portion of the second main rope is connected to one end portion of the second leading rod 5 via the connection portion. The second lead strip 5 is pulled and moved in the direction leading the second main rope to the unit 3 equipped with the unit, and the second main rope is moved to the second counterweight return wheel 12, The drive sheave 8, the turning sheave 13, and the second car side return wheel 10 are continuously wound in this order.

FIG. 3 is an enlarged view showing the connection part 22 of FIG. In the figure, the first lead strip 4 has a bendable core wire (eg, wire) 23 and a covering material (eg, rubber) 24 covering the core wire 23. The core wire 23 is exposed from the covering material 24 at one end portion of the first lead strip 4. The exposed portion of the core wire 23 is bent so as to have an annular shape, and is pressed by a force-applying member 25 to form a leading strip-side annular portion 26.

[0018] The first main rope 21 is produced by twisting a plurality of strands 27 together. At the end of the first main rope 21, the strands 27 are loosened, and the strand 27 of the central portion of the first main rope 21 among the strands 27 is passed through the guide-element-side annular portion 26. The portion of the strand 27 that has been passed through the leading body side annular portion 26 is bent so as to be annular, and is crimped by a caulking member 28 to form a main rope side annular portion 29. In this way, the first leading strip 4 and the first main rope 21 are connected. The connecting portion 22 includes a leading strip side annular portion 26 and a main rope side annular portion 29.

[0019] When the second main rope is guided to the unit-equipped device 3, the second leading strip 5 and the second main rope are connected by forming a connection portion similar to the above. .

[0020] Next, a procedure for installing the elevator will be described. In the factory, the elevator unit 1 for elevator installation is assembled in advance. Assembling the upper unit 1 for elevator installation consists of the upper unit 6, the first car-side return wheel 9, the first counterweight-side return wheel 10, the second car-side return wheel 11, and the second fishing After attaching the counterweight side return wheel 12 and the turning sheave 13 to the predetermined positions of the mounting frame 2, respectively, the plurality of first leading strips 4 are The counterweight-side return wheel 11, the driving sheave 8 and the first car-side return wheel 9 are continuously struck, and a plurality of second leading strips 5 are returned to the second counterweight side. This is done by continuously winding around the car 12, the driving sheave 8, the turning sheave 13, and the second car side return wheel 10 (unit assembly process).

[0021] After that, the elevator installation lifting machine unit 1 is transported to the elevator installation location and installed in the upper part of the ascending / descending path 20. At this time, the mounting frame 2 is fixed in the hoistway 20 so that the driving sheave 8 faces the ceiling surface in the hoistway 20 (unit installation step).

[0022] After that, a plurality of first main ropes 21 and second main ropes are prepared at the landing 31 on the top floor, respectively, and the end of each first main rope 21 is connected to each first leading rope. Each end is connected to one end of the strip 4, and the end of each second main rope is connected to one end of each second leading strip 5. At this time, the connecting portion 22 between the first leading strip 4 and the first main rope 21 is connected to the leading strip-side annular portion 26 provided in advance at one end of the first leading strip 4. It is formed by forming a main rope side annular portion 29 through a strand 27 at the end of one main rope 21. A similar connection portion is also formed between the second leading strip 5 and the second main rope (connection process).

[0023] Thereafter, the other sheave side of each first leading strip 4 and each second leading strip 5 is rotated while the driving sheave 8 is rotated at a low speed by driving the hoisting machine main body 7. Pull at the same time. As a result, each first leading strip 4 and each second leading strip 5 are moved, and each first main rope 21 and each second main rope are moved to the first leading strip 4 and the second leading strip. Towed and moved by each of the leading strips 5. After that, each first leading strip 4 and each second leading strip 5 are pulled out from the unit-equipped device 3, and each first leading strip 4 is replaced with each first main rope 21. Replace second lead strip 5 with each second main rope. As a result, the first main ropes 21 are continuously wound in the order of the first counterweight side return wheel 11, the driving sheave 8 and the first car side return wheel 9, and each second main rope 21 is wound around. Are continuously wound in the order of the second counterweight side return wheel 12, the driving sheave 8, the turning sheave 13, and the second car side return wheel 10. In this manner, each first main rope 21 and each second main rope are attached to the unit-equipped device 3 (main rope winding step).

[0024] In the main rope winding process of this example, each of the first main ropes 21 and each of the second main ropes is wound simultaneously. After winding one of the main ropes 21 and each of the second main ropes, wrap the other main rope. May be.

[0025] Thereafter, both ends of each first main rope 21 and each second main rope are lowered downward, and the force and the counterweight in the hoistway 20 are moved to each first main rope 21 and Suspend by each second main rope.

[0026] In such an elevator main rope wrapping method, the first and second leading strips 4 and 5 are previously wound around the driving sheave 8 of the hoisting machine 6 provided on the mounting frame 2. After the elevator installation unit 1 is installed in the hoistway 1, the first and second main ropes are connected to the first and second leading strips 4 and 5, respectively. Since the first and second main ropes are wound around the driving sheave 8 by pulling and moving the two leading strips 4 and 5, the first and second leading strips 4 and 5 drive sheaves 8 can be wound outside the hoistway 20. Therefore, when the first and second leading strips 4 and 5 are wound around the driving sheave 8, the first and second inner walls of the hoistway 20 and the devices in the hoistway 20 are not obstructed. The winding work of 2 lead strips 4 and 5 can be performed easily.

[0027] Also, after the elevator installation hoist unit 1 is installed in the hoistway 20, the first and second main ropes are driven by the first and second leading strips 4, 5 to drive the sheave. Therefore, the first and second main ropes are connected to the drive sheave 8 without removing the main rope stopper 14 that opposes the outer circumference of the drive sheave 8 from the drive sheave 8. Can be easily wrapped. As a result, it becomes necessary to adjust the size of the gap between the outer periphery of the driving sheave 8 and the main rope stopper 14 again, and the winding work of the first and second main ropes is further facilitated. can do.

[0028] In addition to the lifting machine 6, the mounting frame 2 includes a first car-side return wheel 9, a first counterweight-side return wheel 10, a second car-side return wheel 11, and a second car. The counterweight side return wheel 12 and the turning sheave 13 are provided, and the first and second leading strips 4, 5 are selectively and continuously hung on each sheave 8-13. Therefore, even when a plurality of sheaves are provided on the attachment frame 2, the operation of continuously winding the first and second main ropes around each sheave can be easily performed.

[0029] In the above example, the first and second lead strips 4, 5 are formed by covering the core wire 23 with the covering material 24. However, the first and second main ropes The configuration is not limited to the above as long as the bending rigidity is lower than the bending rigidity. For example, as shown in FIG. 4, the first and second lead strips may be produced by twisting a plurality of strands 32 together. [0030] In this case, the first leading strip 4 and the first main rope 21 are connected by the strands 27 and 32 of the first leading strip 4 and the first main rope 21 being twisted together. Is done. That is, at the end of the first main rope 21, two of the plurality of strands 27 are removed, and a strand groove 33 is formed. At one end of the first lead strip 4, only two strands 32 are left out of the plurality of strands 32, and the other strands 32 are cut off. The remaining two strands 32 are fitted along a strand groove 33 formed at the end of the first main rope 21. As a result, the strand 32 is twisted around the strand 27, and the first leading strip 4 and the first main rope 21 are connected to each other (FIG. 4). The connection between the second lead strip 5 and the second main rope is performed in the same manner.

[0031] Further, in the above example, the strand 27 at the end of the first main rope 21 is passed through the leading strip side annular portion 26 provided at one end of the first leading strip 4 and passed therethrough. The first lead strip 4 and the first main rope 21 are connected by bending the strand 27 into an annular shape to form the main rope side annular portion 29. As shown in FIG. In addition, the first lead strip 4 and the first main rope 21 may be connected via a flexible joint 34.

In this case, the universal joint 34 has a base shaft 35 and a pair of ring members 36 and 37 provided on the base shaft 35 and rotatable about the axial direction of the base shaft 35. In addition, the core wire 23 is passed through the ring member 36, and the strand 27 is passed through the ring member 37, and each of the passed portions is bound by a wire or the like so as to be annular. In this way, since the first main rope 21 is rotated with respect to the second lead strip 4, even when the first main rope 21 is continuously wound around a plurality of sheaves. Therefore, it is possible to prevent the first main rope 21 from being twisted with respect to the first leading strip 4, and the connection between the first leading strip 4 and the first main rope 21 is broken by the twist. Can be prevented.

[0033] Embodiment 2.

FIG. 6 is a partial side view showing a lift unit for elevator installation according to Embodiment 2 of the present invention. In the figure, the mounting frame 2 is provided with a plurality of holding devices 41 that hold both ends of the first and second guide strips 4 and 5 with respect to the mounting frame 2. In this example, each holding device 41 is arranged within the outer dimensions of the mounting frame 2 (inside the mounting frame 2). In addition, both end portions of the first and second leading strips 4, 5 are also used to hold the holding devices 41. Therefore, it is arranged within the outer dimensions of the mounting frame 2 (inside the mounting frame 2). The holding device 41 may be, for example, an adhesive tape that attaches both end portions of the first and second leading strips 4 and 5 to the mounting frame 2 or the first and second leading strips 4 and 4. Examples include press plates that hold both ends of 5 to the mounting frame 2 and hold them.

[0034] The first and second leading strips 4, 5 are given a predetermined tension by holding the respective end portions of the first and second leading strips 4, 5 by the holding devices 41. It has been. The first and second leading strips 4 and 5 are installed on the elevator while being separated from the floor 42 even when the elevator installation unit 1 is temporarily placed on the floor 42 V. It is held in the lifting machine unit 1. Other configurations are the same as those in the first embodiment.

In such an elevator installation hoist unit 1, a holding device 41 that holds both ends of the first and second leading strips 4, 5 with respect to the mounting frame 2 is provided in the mounting frame 2. Since it is provided, a predetermined tension can be applied to the first and second leading strips 4 and 5. As a result, the first and second leading strips 4, 5 can be prevented from loosening and coming off from each sheave. Therefore, the elevator installation hoist unit 1 can be transported and installed in the hoistway 20 more reliably.

[0036] Further, since both end portions of the first and second guide strips 4, 5 are arranged within the outer dimensions of the mounting frame 2 by the holding device 41, the elevator When the installation machine unit i is temporarily placed on the floor 42, the first and second leading strips 4, 5 are caught between the mounting frame 2 and the floor 42, and the first and second It is possible to prevent the second lead strips 4, 5 from being indented. Accordingly, it is possible to prevent the tensile strength of the first and second leading strips 4 and 5 from being lowered and to prevent the first and second leading strips 4 and 5 from being broken. .

[0037] Embodiment 3.

FIG. 7 is a partial side view showing a state where the elevator installation hoist unit 1 according to Embodiment 3 of the present invention is installed in the upper part of the hoistway 20. In the figure, a guide device that guides the first guide body 4 and the first main rope 21 so that the mounting frame 2 is moved along the outer peripheral portion of the first counterweight-side return wheel 11. 51 and a guide device for guiding the first leading strip 4 and the first main rope 21 so as to be moved along the outer periphery of the first force-side return wheel 9. 52 and force S are provided.

[0038] The guide device 51 is disposed below the first counterweight-side return wheel 11. The guide device 52 is disposed below the first car side return wheel 9. That is, the guide device 51 is disposed on the side where the first main rope 21 is introduced into the unit-mounted device 3, and the guide device 52 is disposed on the side where the first main rope 21 is led out from the unit-mounted device 3. Has been. The guide devices 51 and 52 are attached to the attachment frame 2 via attachment members 53 and 54 that can be attached to and detached from the attachment frame.

[0039] At the landing 31 on the top floor, the first main rope 21 that is pulled upward from the landing 31 and introduced into the unit-equipped equipment 3 has a main rope holding device 55 for holding the second main rope. And a turning device 56 that changes the direction of the first leading strip 4 or the second leading strip 5 that is led out from the unit mounting device 3 and pulled downward.

[0040] The main rope holding device 55 has a guide roller 57 that is rotated in accordance with the movement of the first main rope 21 or the second main rope. Further, the turning device 56 includes a guide roller 58 that is rotated in accordance with the movement of the first leading strip 4 or the second leading strip 5.

[0041] The hall 31 on the top floor is provided with a plurality of turntables 59 for carrying the first main rope 21 and the second main rope, respectively. When the first main rope 21 and the second main rope are introduced into the boot-equipped device 3, the first main rope 21 and the second main rope are fed out while the rotary tables 59 are rotated.

[0042] The mounting frame 2 includes the second main rope and the second main rope so as to be moved along the outer peripheries of the second car side return wheel 10 and the second counterweight side return wheel 12 respectively. A guide device (not shown) for guiding the two lead strips 5 is also provided!

That is, when attaching each first main rope 21 and each second main rope to the unit-equipped device 3, the first main rope 21 and the second main rope are placed on each rotary table 59. . Each first main rope 21 is passed through the main rope holding device 55 and the guide device 51 in this order, and is connected to the first leading strip 4. Each second main rope is passed through the main rope restraining device 55 and a guide device (not shown) in this order, and is connected to the second leading strip 5. Further, the first guide strip 4 led out from the unit mounting device 3 is passed through the guide device 52 and the turning device 56 in this order, and is pulled up on the other end side. The second leading strip 4 led out from the unit mounting device 3 is a guide device (not shown) and The turning device 56 is passed through in this order and pulled up on the other end side.

FIG. 8 is a plan view showing the guide device 51 of FIG. The guide device 51 includes an annular body 60 through which the first main rope 21 is passed, and a support portion 61 that is fixed to the mounting member 53 and supports the annular body 60.

And a plurality of rollers 62 rotatably provided on the annular body 60. Each roller 62

The annular bodies 60 are arranged in the circumferential direction. The guide device 52 has the same configuration. Other configurations are the same as those in the first embodiment.

Next, a procedure for installing the elevator will be described. The elevator unit 1 for elevator installation is installed in the upper part of the hoistway 20 after the guide devices 51 and 52 are attached to the mounting frame 2.

[0046] After the elevator hoist unit 1 for elevator installation is installed in the hoistway 20, the first main ropes 21 are passed through the main rope holding device 55 and the guide device 51 in this order. The end is connected to one end of each first lead strip 4. Also, each second main rope is passed through the main rope retainer 55 and the guide device in this order, and the end of each second main rope is connected to one end of each second leading strip 5. . At this time, the other end of the first guide strip 4 is passed through the guide device 52 and the turning device 56 in this order, and the other end of the second guide strip 5 is not shown. Pass through in order.

[0047] After that, while rotating the driving sheave 8 at a low speed by driving the hoisting machine main body 7, the other end portions of the first leading strip 4 and the second leading strip 5 are simultaneously moved. Pull up. As a result, each first leading strip 4 and each second leading strip 5 are moved together with the first main rope 21 and the second main rope. At this time, the rotary table 59 is rotated by the movement of the first main rope 21, and the first main rope 21 is also fed out the force on the rotary table 59. In addition, the rotary table 59 is rotated by the movement of the second main rope, and the second main rope also feeds the force on the rotary table 59.

[0048] As a result, the first main rope 21 is replaced with the first leading strip 4 force, the first counterweight side return wheel 12, the drive sheave 8, and the first car side return wheel 9 It is wound continuously in the order of. In addition, each second main rope is replaced from the second leading strip 5 and is continuously in order of the second counterweight side return wheel 12, the driving sheave 8 and the second car side return wheel 10. Wrapped.

[0049] Thereafter, the guide devices 51 and 52 are removed from the mounting frame 2 together with the mounting members 53 and 54, and the first device Disconnect the lead strip 4 from the first main rope 21. Also, remove the guide frame (not shown) from the mounting frame 2 and disconnect the second leading strip 5 from the second main rope. The subsequent procedure is the same as in the first embodiment.

[0050] It should be noted that in this example, each first main rope 21 and each second main rope are each subjected to the same winding operation. Try to wrap each rope separately.

[0051] In the elevator-installed hoist unit 1 as described above, the first car-side return wheel 9 and the first counterweight-side return wheel 11 are moved along the outer periphery of the first counterweight-side return wheel 11 respectively. Since guide devices 51 and 52 for guiding either the leading strip 4 or the first main rope 21 are provided on the mounting frame 2, the first leading strip 4 and the first main rope 21 are the first. Inclination with respect to the car-side return wheel 9 and the first counterweight-side return wheel 11 can be prevented. As a result, the first lead 4 is placed between the main rope stopper 15 and the first car side return wheel 9 and between the main rope stopper 17 and the first counterweight side return wheel 11. It is possible to prevent the first main rope 21 from swallowing, and to prevent problems such as the breakage of the first leading strip 4 and the first main rope 21.

[0052] Further, the second leading strip 5 and the second main rope of the second cage side return wheel 10 and the second counterweight side return wheel 12 are respectively moved along the outer peripheral portion of the second counterweight side return wheel 12. Since a guide device for guiding either of them is provided on the mounting frame 2, as described above, between the main rope stopper 16 and the second car side return wheel 10, or the main rope stopper 18 and the second It is possible to prevent the second leading strip 5 and the second main rope from being caught between the counterweight-side return wheel 12 of the second counterweight and the second leading strip 5 and the second leading rope 12. It is possible to prevent problems such as breakage of the main rope.

[0053] Further, when either the first main rope 21 or the second main rope is introduced into the unit-equipped device 3 (main rope winding step), the rotary table provided at the landing 31 on the top floor 59 is loaded with the main rope to be introduced into the unit-equipped equipment 3, and the main rope is extended while the rotary table 59 is rotated, so that the main rope can be prevented from being tangled. , Work efficiency can be improved.

[0054] Further, since the turning device 56 for changing the direction of the first or second leading strips 4, 5 derived from the unit-mounted device 3 is provided at the landing 31 on the top floor, the worker can check the landing 31. so It is possible to change the direction of the first or second leading strips 4 and 5 in a direction that is easy to pull, and to further improve work efficiency.

Claims

The scope of the claims

[1] Mounting frame,

A lifting machine provided with a driving sheave and provided in the mounting frame;

A leading strip for wrapping the main rope around the drive sheave by being wound around the drive sheave and moving the main rope for suspending the force with a bow I;

Holding device for holding both end portions of the leading strip to the mounting frame

An elevator unit for elevator installation, characterized by comprising:

[2] The mounting frame is provided with a driven sheave separate from the driving sheave of the lifting machine, and the leading strip is continuously wound around the driving sheave and the driven sheave. The elevator unit for elevator installation according to claim 1, wherein the elevator unit is hung.

[3] The apparatus further comprises a guide device that guides at least one of the leading strip and the main rope so as to be moved along the outer peripheral portion of the driven sheave.

The elevator unit for elevator installation as described in 2.

[4] The elevator installation hoist unit according to any one of claims 1 to 3, wherein the both ends held by the holding device are disposed in the mounting frame.

[5] A unit assembly process in which a leading strip is wrapped around a driving sheave of a lifting machine provided on a mounting frame to form a lifting machine unit for elevator installation,

A unit installation process for installing the elevator installation hoist unit in the hoistway, a connection process for connecting the end of the main rope for suspending the ladder to the end of the leading strip, and

A main rope winding step for winding the main rope around the driving sheave by moving the leading rope and the main rope while bowing the leading rope.

An elevator main rope wrapping method characterized by comprising:

[6] Claim 5 is characterized in that, in the main rope winding step, the main rope is placed on a rotary table provided at a landing, and the main rope is extended while the rotary table is rotated. The main rope winding method of the described elevator.

[7] The direction in which the leading strip is pulled may be changed by a turning device provided at the landing. The elevator main rope winding method according to claim 5 or 6, wherein