JP2003128359A - Roping method for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roping method for a built-in type elevator allowing roping without a scaffold. SOLUTION: A car 1 and a traction machine 6 are installed in the vicinity of bottom part of a hoistway 7. A first converting pulley 4 and a second converting pulley 5 are fixed on the car 1 and a rope drum 8a is arranged thereon. One end 3b of a rope 3 is sequentially wound and held on a car pulley 1a, the first converting pulley 4, the traction machine 6, the second converting pulley 5 and a counterweight pulley 2a. The car 1 is lifted up to the vicinity of top part of the hoistway 7 with drawing the rope 3 from the rope drum 8a. The first converting pulley 4 and the second converting pulley 5 are respectively fixed on top part of the hoistway 7 and one end 3b and the other end 3a of the rope 3 are fixed on top part of the hoistway 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator rope hanging method, and more particularly to an elevator rope hanging method suitable for tensioning a rope in a built-in type elevator without a machine room at the top of a hoistway. .

[0002]

2. Description of the Related Art In recent years, in order to reduce an occupied area of elevators in a building, there is a tendency that a large number of built-in type elevators are installed in which a main elevator equipment is installed in a hoistway where a car of an elevator is elevated and lowered.

In this type of elevator, both ends of the rope are fixed to the top of the hoistway, and in the middle of the rope, a car pulley provided on a car, a counterweight pulley provided on a counterweight, and the relevant pulley. Traction machines that give driving force to the ropes are each set around. In addition, such a built-in type elevator has conventionally not had a machine room at the top of the hoistway.Therefore, at the time of rope hanging work, a scaffold is provided in the entire path of the hoistway so that the rope can be hung from above the scaffold. Has become.

An example of this type is disclosed in Japanese Patent Laid-Open No. 2001-122556.

[0005]

By the way, in the above-mentioned conventional rope hanging method, since many scaffolding materials are required, costs are required for installation, removal, transportation and storage, and installation of the elevator. This was one of the causes of increasing costs.

The present invention has been made in view of the actual situation in the prior art as described above, and a first object thereof is to provide a built-in type elevator in which a traction machine is installed at the bottom of a hoistway and requires a scaffold. An object of the present invention is to provide an elevator rope hanging method that enables rope hanging work to be performed.

A second object of the present invention is to provide an elevator rope hanging method in which a traction machine is a built-in type elevator installed at the top of a hoistway and can perform rope hanging work without requiring a scaffold. Especially.

A third object of the present invention is a built-in type elevator in which a traction machine is installed on the top of a hoistway, which enables rope hanging work without requiring a scaffold and further simplifies the work. An object of the present invention is to provide an elevator rope hanging method capable of achieving the above.

[0009]

In order to achieve this first object, the invention according to claim 1 of the present invention is a car including a car pulley around which a rope is wound and capable of moving up and down a hoistway. There is an elevator having a counterweight having a counterweight pulley around which the rope is wound and capable of moving up and down the hoistway, and a traction machine installed at the bottom of the hoistway to apply a driving force to the wound rope. And both ends of the elevator are fixed to the top of the hoistway, and an intermediate portion of the elevator is used when the rope is wound around the car pulley, the counterweight pulley, and the traction machine. In the rope hanging method, the car is assembled near the bottom of the hoistway, and the traction machine is installed at the bottom of the hoistway. A first rotating pulley and a second rotating pulley are attached to the car, and a rope drum that holds one end of the rope and winds the other end of the rope so that the other end can be pulled out is arranged, and then the other end of the rope is attached. , The car pulley, the first diverting pulley, the traction machine, the second diverting pulley, and the counterweight pulley, and sequentially wraps and holds the car pulley, and then pulls out the rope from the rope drum to the car basket. To near the top of the hoistway to fix the first turning pulley and the second turning pulley to the top of the hoistway respectively, and one end and the other end of the rope to the top of the hoistway. It is fixed.

According to the first aspect of the present invention, when the rope is stretched, the car is first assembled near the bottom of the hoistway, and the traction machine is installed at the bottom of the hoistway. Next, the first deflecting pulley and the second deflecting pulley are attached to the car and the rope drum is disposed, and then the other end of the rope is connected to the car pulley, the first deflecting pulley, the traction machine, the second The turning pulley and the counterweight pulley are sequentially wound around and held.
Then, while pulling out the rope from the rope drum, raise the car to the vicinity of the top of the hoistway to fix the first turning pulley and the second turning pulley to the top of the hoistway, respectively, and at one end and the other end of the rope. To the top of the hoistway. In this way, with the balance weight wound around the rope and the traction machine positioned at the bottom of the hoistway, the rope is unwound from the rope drum while the car is raised, and the first and second turning pulleys and both ends of the rope are pulled. By fixing the to the top of the hoistway, it is possible to use a movable car as a scaffold,
Therefore, in the built-in type elevator in which the traction machine is installed at the bottom of the hoistway, the rope hanging work can be performed without the need for a scaffold.

In order to achieve the second object, the invention according to claim 2 of the present invention comprises a car pulley around which the rope is wound, and a rope that can be raised and lowered in a hoistway and is wound around the rope. In an elevator having a counterweight that is equipped with a counterweight pulley that is capable of ascending and descending the hoistway, and a traction machine that is installed at the top of the hoistway and that applies a driving force to a wound rope, both ends of which are While being fixed to the top of the hoistway, the intermediate portion thereof, the car pulley, the balancing weight pulley and the rope rope of an elevator used when tensioning the rope respectively wound around the traction machine, Assembling the car near the bottom of the hoistway,
Install the traction machine at the top of the hoistway,
To the car, a deflection pulley is attached, and a rope drum that holds one end of the rope and winds the other end so that the other end can be pulled out is arranged, and then the other end of the rope is
The car pulley, the turning pulley, and the counterweight pulley are sequentially hung and held, and then the car is raised to the vicinity of the top of the hoistway while pulling out the rope from the rope drum. The rope is mounted on the traction machine and one end and the other end of the rope are fixed to the top of the hoistway.

According to the second aspect of the present invention, when the rope is stretched, the car is first assembled near the bottom of the hoistway, and the traction machine is installed at the top of the hoistway. Next, the turning pulley is attached to the car and the rope drum is arranged, and then the other end of the rope is sequentially wound around and held by the car pulley, the turning pulley, and the counterweight pulley. After that, while pulling the rope out of the rope drum, the car is lifted up to near the top of the hoistway, the rope is transferred from the turning pulley to the traction machine, and one end and the other end of the rope are fixed to the top of the hoistway. In this way, with the counterweight wound around the rope positioned at the bottom of the hoistway,
By raising the car while unrolling the rope from the rope drum, changing the rope to the traction machine and fixing both ends to the top of the hoistway, it is possible to use the movable car as a scaffold,
Therefore, in the built-in type elevator in which the traction machine is installed at the top of the hoistway, the rope hanging work can be performed without the need for a scaffold.

Further, in order to achieve the third object, the invention according to claim 3 of the present invention comprises a car pulley around which a rope is wound, and a rope which can be raised and lowered in a hoistway and is wound by the rope. In an elevator having a counterweight that is equipped with a counterweight pulley that is capable of ascending and descending the hoistway, and a traction machine that is installed at the top of the hoistway and that applies a driving force to a wound rope, both ends of which are While being fixed to the top of the hoistway, the intermediate portion thereof, the car pulley, the balancing weight pulley and the rope rope of an elevator used when tensioning the rope respectively wound around the traction machine, Assembling the car in the vicinity of the bottom of the hoistway, the car, the traction machine,
And a rope drum that holds one end of the rope and winds the other end so that the other end can be pulled out, and then,
The other end of the rope is sequentially hung and held around the car pulley, the traction machine, and the counterweight pulley, and then the car is pulled out from the rope drum while the car is near the top of the hoistway. So that one end and the other end of the rope are fixed to the top of the hoistway.

According to the third aspect of the present invention, when the rope is stretched, the car is first assembled near the bottom of the hoistway, and the traction machine and the rope drum are attached to the car. And then wrap and hold the other end of the rope around the car pulley, traction machine, and counterweight pulley in sequence. Then, while pulling out the rope from the rope drum, the car is lifted up to near the top of the hoistway, and one end and the other end of the rope are fixed to the top of the hoistway. In this way, with the balance weight wound around the rope positioned at the bottom of the hoistway, raise the car while unrolling the rope from the rope drum, change the rope to the traction machine, and place both ends on top of the hoistway. By fixing it, the movable car can be used as a scaffolding, and therefore, in the built-in type elevator where the traction machine is installed at the top of the hoistway, the rope hanging work can be performed without the need for a scaffolding. It can be carried out. Further, by previously disposing the traction machine in the car, it is possible to omit the work of changing the ropes, and therefore, the work can be further simplified.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of an elevator rope hanging method according to the present invention will be described below with reference to the drawings.

FIG. 1 is a vertical sectional view of a hoistway showing an embodiment of an elevator rope hanging method according to the present invention, and FIG. 2 is a perspective view showing a state in which a first turning pulley is attached to a handrail of a car. FIG. 3 is a perspective view showing a state in which the second turning pulley is attached to the handrail of the car, and FIG. 4 is a vertical cross-sectional view of the hoistway showing a work completed state in which both ends of the rope are fixed to the top of the hoistway. .

As shown in FIG. 4, the built-in type elevator is provided with a car pulley 1a around which a rope 3 is wound, and a car 1 capable of moving up and down a hoistway 7, and a counterweight pulley 2a around which the rope 3 is wound. A counterweight 2 capable of moving up and down the hoistway 7 and a first fixed to the top of the hoistway 7.
Turning pulley 4, a second turning pulley 5 that is fixed to the top of the hoistway 7, and a traction machine 6 that is installed at the bottom of the hoistway 7 and that applies a driving force to the wound rope 3.
1, a pulley beam 9 for fixing the first turning pulley 4 and the second turning pulley 5 at the top of the hoistway 7, a guide rail 10 shown in FIG. 1 for guiding the lifting and lowering of the car 1, and one end 3a of the rope 3. Mounting bracket 31 for fixing the to the top of the hoistway 7
a and a mounting bracket 31b for fixing the other end 3b of the rope 3 to the top of the hoistway 7, and the rope 3 is fixed to the top of the hoistway 7 by the mounting bracket 31a from the one end 3a side. Through the car pulley 1a, the first turning pulley 4, the traction machine 6, the second turning pulley 5 and the counterweight pulley 2a, the other end 3b is attached to the top of the hoistway 7 by the mounting bracket 31b. Has been done.

Next, the rope hooking device used in the rope hooking of this embodiment will be described with reference to FIGS. 1 to 3.

As shown in FIGS. 1 to 3, the rope hooking device comprises a rope drum 8a which holds one end of the rope 3 and winds the other end so that the other end can be pulled out, and a first turning pulley 4 for handrailing the car 1. Fixture 8b detachably held on 1b
And a fixture 8c that detachably holds the second turning pulley 5 on the handrail 1b of the car 1, and a holder 8d that holds the other end 3b of the rope 3. The fixture 8b is fixed to the handrail 1b via the fastener 81b, and the fixture 8c is fixed to the handrail 1b via the fastener 81c. Further, the first turning pulley 4 is held by the fixture 8b via the holding member 82b, and the second turning pulley 5 is held by the fixture 8c via the holding member 82c.

In this embodiment, when the rope 3 is stretched, first, the car 1 is assembled near the bottom of the hoistway 7 and engaged with the guide rails 10, and the hoistway 7 is also assembled. The traction machine 6 is installed at the bottom of the. Next, the first turning pulley 4 is attached to the car 1 with the fixture 8
The second deflecting pulley 5 is attached to the handrail 1b by means of b, the second turning pulley 5 is attached to the handrail 1b by means of a fixture 8c, and the rope drum 8a is arranged. Next, the other end 3b of the rope 3 is pulled out from the rope drum 8a, and sequentially hung around the car pulley 1a, the first turning pulley 4, the traction machine 6, the second turning pulley 5 and the counterweight pulley 2a, and the other end 3b is held by the holding body 8d.

After that, with the brake of the traction machine 6 released, while pulling out the rope 3 from the rope drum 8a, the car 1 is lifted by a lifting means (not shown) near the top of the hoistway 7, that is, the broken line in FIG. Raise to the position indicated by. When the car 1 is raised, the rope 3 is sequentially pulled out from the rope drum 8a, so that the balance weight 2 and the traction machine 6 are held at the bottom of the hoistway 7, and the car 1 and the traction machine 6 and the balance machine 6 are held. A rope 3 is stretched between the weights 2 to the higher floor.

Next, as shown in FIG. 4, the first deflecting pulley 4 and the second deflecting pulley 5 are fixed to the pulley beam 9 at the top of the hoistway 7, and one end 3a of the rope 3 is attached to the hoistway by the fitting 31a. Fixed to the top of 7 and the other end 3
b is fixed to the top of the hoistway 7 by the mounting bracket 31b.
And finally, the mounting bracket 31 to which the rope 3 is mounted
Loosening a and 31b and adjusting the tension of the rope 3 completes the rope hanging work.

In the embodiment constructed as described above, the balance 1 wound around the rope 3 and the traction machine 6 are positioned at the bottom of the hoistway 7 while the rope 3 is unwound from the rope drum 8a. By raising and fixing both ends 3a, 3b of the rope 3 and the first and second turning pulleys 4, 5 to the top of the hoistway 7, the movable car 1 can be used as a scaffold. Therefore, the traction machine 6 is moved to the hoistway 7.
In the built-in type elevator installed at the bottom of
Rope hanging work can be performed without requiring a scaffold. Further, in practice, a plurality of ropes can be stretched at once, so that the efficiency of the rope hanging work can be improved.

In the present embodiment, the car 1 is lifted by the lifting means during the rope hanging work. However, when the car 1 can be provided with an elevating means capable of self-propelling, the car 1 is lifted. It goes without saying that it is sufficient to raise the car 1 by self-propelled regardless of the means. Further, when the diameter of the rope drum 8a becomes large and it is difficult to stretch a plurality of ropes at the same time, it is possible to stretch a single rope.
Needless to say, this case also has the above-mentioned effect regarding the scaffold.

FIG. 5 is a vertical cross-sectional view of a hoistway showing another embodiment of the elevator rope hanging method of the present invention, and FIG. 6 is a hoistway showing a work completed state in which both ends of the rope are fixed to the top of the hoistway. FIG. The same components as those shown in FIGS. 1 to 4 are designated by the same reference numerals.

The construction of the built-in type elevator shown in another embodiment and that of the above-mentioned embodiment are shown in FIGS. 5 and 6.
As shown in FIG. 3, it is different in that a traction machine 6a that applies a driving force to the wound rope 3 is installed at the top of the hoistway 7 and that the turning pulley is removed when the work is completed. There is.

As shown in FIG. 5, a rope hooking device used in another embodiment has a rope drum 8a which holds one end of the rope 3 and winds the other end thereof so that the other end can be pulled out, and a turning pulley 11 of the car 1. A fixture 8c detachably held on the handrail 1b, and a holder 8d holding the other end 3b of the rope 3
And have. Then, as shown in FIG. 6, the rope 3 has the other end 3b from the one end 3a side fixed to the top of the hoistway 7 by the fitting 31a, the car pulley 1a, the traction machine 6a, and the counterweight pulley 2a. It is hung so as to be fixed to the top of the hoistway 7 by the mounting bracket 31b. Since the fixture 8c and the holder 8d are the same as those shown in the above-mentioned embodiment, the description thereof will be omitted.

In the other embodiment, when the rope 3 is stretched, first, the car 1 is assembled in the state of being engaged with the guide rail 10 in the vicinity of the bottom of the hoistway 7, and the car 1 is moved up and down. A traction machine 6a is installed on the top of the road 7 via a pulley beam 9. Next, in the car 1, the turning pulley 11 is attached to the handrail 1b by the fixture 8c, and the rope drum 8a is arranged. Next, the other end 3b of the rope 3 is pulled out from the rope drum 8a and sequentially wound around the car pulley 1a, the turning pulley 11, and the counterweight pulley 2a, and the other end 3b is held by the holding body 8d.

After this, with the brake of the traction machine 6a released, the rope drum 8a to the rope 3
While pulling out, the car 1 is raised to the vicinity of the top of the hoistway 7, that is, to the position shown by the broken line in FIG. When the car 1 is raised, the ropes 3 are sequentially pulled out from the rope drum 8a, so that the counterweight 2 is held at the bottom of the hoistway 7, and the rope 3 is placed between the car 1 and the counterweight 2 in a higher order. It is stretched to the floor.

Next, as shown in FIG. 6, the rope 3 wound around the turning pulley 11 is remounted on the traction machine 6a, the fixing tool 8c is removed, and one end 3a of the rope 3 is attached to the hoistway 7 by the fitting 31a. Fixed on the top,
Moreover, the other end 3b is fixed to the top of the hoistway 7 by the fitting 31b. Then, finally, the attachment fittings 31a and 31b to which the rope 3 is attached are loosened, and the tension of the rope 3 is adjusted to complete the rope hanging work.

In another embodiment constructed in this way, with the counterweight 2 wound around the rope 3 positioned at the bottom of the hoistway 7, the rope 1 is raised from the rope drum 8a while the car 1 is raised. , The rope 3 is changed to the traction machine 6a and both ends 3a, 3b thereof
Since the vehicle is fixed to the top of the hoistway 7, the movable car 1 can be used as a scaffolding. Therefore, in the built-in elevator in which the traction machine 6a is installed on the top of the hoistway 7, Rope hanging work can be performed without requiring a scaffold. Further, in practice, a plurality of ropes can be stretched at once, so that the efficiency of the rope hanging work can be improved.

Further, in the other embodiments described above, the rope 3 is changed from the turning pulley 11 to the traction machine 6a, but if the handrail 1b of the car 1 can be strongly supported, the traction machine 6a. It is also possible to previously support the handrail 1b. In such cases,
Connect the other end of the rope 3 from the rope drum 8a to the car pulley 1
a, the traction machine 6a, and the counterweight pulley 2a, which are successively hung and held, and the car 1 is lifted to the vicinity of the top of the hoistway 7 while pulling out the rope 3 from the rope drum 8a. 3b
Is fixed to the top of the hoistway 7. This makes the rope 3
It is possible to omit the replacement work, and it is possible to further simplify the work.

[0033]

According to the invention of claim 1 of the present invention,
The traction machine is a built-in type elevator installed at the bottom of the hoistway, and rope hanging work can be performed without requiring a scaffold.

According to the second and third aspects of the present invention, in the built-in type elevator in which the traction machine is installed at the top of the hoistway, the rope hanging work can be performed without the need for a scaffold. it can.

As a result, the costs of installing, removing, transporting and storing the scaffolding material, which have been conventionally required, are reduced,
As a result, the installation cost of the elevator can be reduced. Further, since the movable car can be used as a scaffold, it is possible to facilitate the movement and transportation of the worker and the equipment and improve the work efficiency.

Further, according to the invention of claim 3 of the present invention, the traction machine is arranged in advance in the car and the work of changing the rope is omitted, whereby the work can be further simplified. As a result, it is possible to reduce the working time and the labor.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a hoistway showing an embodiment of an elevator rope hanging method according to the present invention.

FIG. 2 is a perspective view showing a state in which a first turning pulley is attached to a handrail of a car.

FIG. 3 is a perspective view showing a state in which a second turning pulley is attached to a handrail of a car.

FIG. 4 is a vertical cross-sectional view of the hoistway showing a work completed state in which both ends of the rope are fixed to the top of the hoistway.

FIG. 5 is a vertical cross-sectional view of a hoistway showing another embodiment of the rope hanging method for an elevator according to the present invention.

FIG. 6 is a vertical cross-sectional view of the hoistway showing a work completed state in which both ends of the rope are fixed to the top of the hoistway.

[Explanation of symbols]

1 basket Two counterweights 3 rope 4 First turning pulley 5 Second turning pulley 6,6a Traction machine 7 hoistway 8a rope drum 9 pulley beam 11 Turning pulley

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Atsushi Nagase             Hitachi 16-29 Nakagawa 4-chome, Adachi-ku, Tokyo             Reveta Techno Service Co., Ltd. F term (reference) 3F305 BB02 DA07 DA11

Claims (3)

[Claims] 1. A car including a car pulley around which a rope is wound, which is capable of moving up and down in a hoistway, and a counterweight, which is equipped with a counterweight pulley around which the rope is wound, and is capable of moving up and down in the hoistway; In an elevator having a traction machine installed at the bottom of a road and applying a driving force to a wound rope, both ends of which are fixed to the top of the hoistway, and an intermediate portion of the car pulley, the In a rope hanging method of an elevator used when tensioning the ropes that are respectively wound around a counterweight pulley and the traction machine, the car is assembled in the vicinity of the bottom of the hoistway, and the car is assembled at the bottom of the hoistway. A traction machine is installed, a first turning pulley and a second turning pulley are attached to the car, and Holding one end of the-loop disposed a rope drum that can be wound pull the other end, then
The other end of the rope is sequentially wound around the car pulley, the first turning pulley, the traction machine, the second turning pulley and the counterweight pulley to hold the rope, and then the rope drum is used to hold the rope. While pulling up the car, the car is lifted to the vicinity of the top of the hoistway, the first turning pulley and the second turning pulley are fixed to the top of the hoistway, and one end and the other end of the rope are fixed. An elevator rope hanging method characterized in that the rope is fixed to the top of the hoistway. 2. A car including a car pulley around which a rope is wound, which can move up and down a hoistway, and a counterweight, which includes a counterweight pulley around which the rope is wound, and can move up and down the hoistway, and the hoist. In an elevator having a traction machine installed on the top of a road and applying a driving force to a wound rope, both ends of which are fixed to the top of the hoistway, and an intermediate part of the car pulley, the In a rope hanging method of an elevator used when tensioning the ropes respectively wound around a counterweight pulley and the traction machine, the elevator car is assembled in the vicinity of the bottom of the hoistway, and the elevator is installed at the top of the hoistway. Install a traction machine, attach a turning pulley to the car, and hold one end of the rope at the other end. A rope drum wound so that it can be pulled out is arranged, and then the other end of the rope is sequentially wound around and held by the car pulley, the turning pulley, and the counterweight pulley. Lifting the car up to near the top of the hoistway while pulling out the rope, hooking the rope from the diverting pulley to the traction machine, and fixing one end and the other end of the rope to the top of the hoistway. Elevator rope hanging method characterized by. 3. A car including a car pulley around which a rope is wound, which can move up and down a hoistway, and a counterweight, which includes a counterweight pulley around which the rope is wound, and can lift up and down the hoistway, and the hoist. In an elevator having a traction machine installed on the top of a road and applying a driving force to a wound rope, both ends of which are fixed to the top of the hoistway, and an intermediate part of the car pulley, the In a rope hanging method of an elevator used when tensioning the rope to be hung around the counterweight pulley and the traction machine, respectively, assembling the car in the vicinity of the bottom of the hoistway, and in the car, There is a traction machine and a rope drum that holds one end of the rope and winds the other end so that it can be pulled out. Then, the other ends of the ropes are successively wound around the car pulley, the traction machine, and the counterweight pulley and held, and then the car is pulled while pulling the rope out of the rope drum. Is raised to near the top of the hoistway, and one end and the other end of the rope are fixed to the top of the hoistway.