JP3277486B2 - Existing main rope winding device of the elevator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an existing main rope winding device of an elevator for recovering an existing main rope when exchanging a plurality of existing main ropes for lifting a car and a counterweight.

[0002]

2. Description of the Related Art FIG. 6 is a view for explaining a step of recovering an existing main rope by a conventional method of exchanging a main rope of an elevator, FIG. FIG. 9 is a view for explaining a process of laying a new main rope by a conventional method of exchanging a main rope of a lift, and FIG. 9 is a perspective view showing an entire configuration of a general rope type lift.

Generally, in a rope type elevator, as shown in FIG. 9, a hoisting machine 2 is installed in a machine room 1, and the hoisting machine 2
A sheave 3 is attached to the
Are arranged, and a plurality of existing main ropes 6 are wound around the sheave 3 and the deflector 4. In the hoistway 5 below the machine room 1, a car 10 connected to one end of the existing main rope 6 via a socket 8 and a thimble rod 8a.
And a socket 9 and a thimble rod 9 at the other end of the existing main rope 6.
and a counterweight 11 connected via a. The socket 8 is attached to one end of a thimble rod 8a via a pin (not shown), and this thimble rod 8a is connected to a frame 10a of the car 10 via a spring (not shown). Similarly, the socket 9 is attached to one end of a thimble rod 9a via a pin (not shown), and this thimble rod 9a is connected to the frame 11a of the counterweight 11 via a spring (not shown).

For example, in the case of an elevator for a middle-rise or high-rise building, the existing main rope 6 becomes longer and the weight of the existing main rope 6 increases, and therefore, conventionally, the winch 16 shown in FIG. 6 and the main rope winding drum shown in FIG. The main ropes are exchanged by the following method using the main cable 21. That is, first, the worker 15 operates the chain block 17 above the hoistway 5,
As shown in FIG. 6, the car 10 is held by the chain block 17 and the pit 12
By holding the counterweight 11 with the support base 19, the existing main rope 6 is slackened. In this state, the existing main ropes 6 are hung down using the winch 16 installed in the machine room 1, and the main rope winding drum 21 temporarily provided at the lowest floor landing 14 is rotated by the operator 15 c, whereby The existing main rope 6 is wound around the main rope winding drum 21.

[0005] Next, as shown in FIG. 8, an operator 15 d in the machine room 1 deflects the new main rope 7 wound around the main rope winding drum 18 onto the deflecting wheel 4 and the sheave 3 of the hoisting machine 2. At the same time, the socket 9 at one end of the new main rope 7 is lowered from the machine room 1 to below the hoistway 5, and the worker 15 a on the work platform 20 installed below the hoistway 5 balances the socket 9. The operator 15 on the car 10 connects the other end of the newly installed main rope 7 to the car 10.

When replacing a plurality of existing main ropes 6 with the new main ropes 7 as described above, for example, a method of hanging the new main ropes 7 after removing all of the plurality of existing main ropes 6, The existing main ropes 6 are detached one by one, and the existing main ropes 6 and the corresponding new main ropes 7 are sequentially hung.

As shown in FIG. 7, a worker 15e can manually wind up the existing main rope 6 in the pit 12 below the hoistway 5, but in this case, a large amount of labor is required and the existing main rope 6 is required. Since the main rope oil and dust are attached to the rope 6, it is slippery and winding work is difficult.
There is a problem that the work floor of the worker and the work clothes of the worker 15e become dirty.

[0008]

However, in the above-mentioned conventional main rope winding device of the conventional elevator, the lowest floor landing 14
When the existing main ropes 6 are collected by winding them up with the main rope winding drum 21 that is temporarily installed, the workers 15
c needs to rotate the main rope winding drum 21, it takes a long time to recover the existing main rope 6, and it is heavy labor. In addition, since the main rope winding drum 21 is large, it is transported. There is a problem if it is difficult.

The present invention has been made in view of such a situation in the prior art, and has as its object to eliminate the need for a winch for hanging down an existing main rope and a main rope winding drum for winding the existing main rope. Another object of the present invention is to provide an existing main rope winding device of an elevator capable of safely and easily recovering the existing main rope.

[0010]

In order to achieve the above object, the present invention provides a car and a counterweight which moves up and down in a hoistway, and a plurality of main ropes for lifting the car and the counterweight. A plurality of main ropes are wound around the hoistway, and a hoist is installed in a machine room above the hoistway, and the car is held above the hoistway.
Hold the counterweight at the bottom of the hoistway
The existing main rope is slackened by
After cutting one end of the main rope from the car,
One end of the new main rope is connected to one end of the new main rope via the main rope connector.
And send out the new main rope from the top floor of the hoistway
In the existing main rope take-up device of the elevator that recovers the existing main ropes, at least one of the lower part of the hoistway and the lowest floor landing receives the existing main ropes in a wound state , Bottom at several places on the side
A round container having a main rope bundling hole formed upward from above, a main rope guide for guiding the existing main rope in the round container, and a detachably mounted inside the round container, Downward
It has a tapered shape and an opening at the bottom
And a winding plate .

In the present invention configured as described above, the hoistway
Of de sends new main rope from the top floor landing, gradually move the existing main rope and new main ropes by the weight of the other end of the existing main rope, hanging in such hoisting machine to be installed in the machine械室Turn ,
The existing main rope is suspended and collected. At that time, the existing main rope
Is guided by the main rope guide above the round container and
And the existing main rope is
By suppressing spreading to the outside, from the bottom of the round container
It is laminated and wound up to the lower part of the winding plate. this
The existing main rope collected in the round container was provided on the side of the round container
Bundled with a wire through the main cable binding hole and removed from the round container
Will be issued. This makes it possible to safely and easily recover the existing main rope without particularly needing a winch for hanging down the existing main rope or a main rope winding drum for winding the existing main rope.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of an existing main rope winding device for an elevator according to the present invention. FIG.
Is an explanatory view of an elevator equipped with an existing main rope winding device according to an embodiment of the present invention, FIG. 2 is an explanatory diagram showing a main rope connecting body provided in the existing main rope winding device of FIG. 1, and FIG. FIG. 4 is an explanatory view showing a round container and a main rope guide provided in the existing main rope winding device of FIG. 1; FIG. 4 is a diagram illustrating a winding plate mounted inside the round container; FIG. It is a figure explaining the hole for main rope binding formed in. In FIGS. 1 to 5, the same components as those shown in FIGS. 6 to 9 are denoted by the same reference numerals.

An existing main rope take-up device 22 of this embodiment shown in FIG. 1 includes a round container 23 provided on a work platform 20 below the hoistway 5, a round container 23 and a plurality of columns 2.
4a, a main rope guide 24 for guiding the existing main rope 6 into the round container 23, one end of the existing main rope 6 and the new main rope 7
And a main cable connecting body 26 connecting one end of the main cable.

The round container 23 has an upper opening and is formed in a cylindrical shape with a lower bottom. The round container 23 is slightly opened upward, and a plurality of main rope binding holes 23a are formed on the side of the round container 23 at predetermined intervals upward from the bottom as shown in FIG. Have been. As shown in FIG. 4, a winding plate 25 on which the existing main rope 6 can be wound is mounted inside the upper part of the round container 23, and the winding plate 25 is slightly downward. It is tapered and has a lower opening. Furthermore, the winding plate 25 is hooked on the upper part of the round container 23 in a structure that can be divided into four parts, and can be easily removed from the round container 23.

As shown in FIG. 2, the main cable connecting body 26 has a connecting member (so-called swivel joint) 26a whose one end is rotatable with respect to the other end, and this connecting member 26a is attached to one end of the existing main cable 6. It comprises a first connecting member 26b to be connected and a second connecting member 26c to connect the connecting member 26a to one end of the newly installed main rope 7. When connecting one end of the existing main rope 6 and one end of the new main rope 7 via the main rope connector 26,
A base wire 29a with respect to the frame 10a of the car 10,
One end of the existing main rope 6 is gripped by pulling one end of the existing main rope 6 through the cording device 29 and the main rope grasping device 28,
In a state where the tension of the spring 8c of the thimble rod 8a is invalidated, one end of the existing main rope 6 is cut off from the socket 8 of the car 10 side, and one end of the separated main rope 6 is connected to the first end.
The connection member 26a is connected to the connection member 26a via the connection member 26b.

In this embodiment, the main cable exchange is performed as follows. That is, first, the car 10 is held above the hoistway 5 via the chain block 17, and the counterweight 11 is placed on the support base 19 provided in the pit 12 below the hoistway 5. In this state, the worker 15 on the car 10
The existing main rope 6 is slackened by operating the 7 to slightly lift the car 10. Next, the pit 1 under the hoistway 5
An operator 15a on a work scaffold 20 provided at 2 removes the socket 9 attached to the existing main rope 6 from the thimble rod 9a connected to the counterweight 11.

Next, as shown in FIG. 2, one end of the existing main rope 6 is grasped by a main rope grasping device 28, and a cable tie 29 is attached to the main rope grasping device 28.
a and the wire tensioner 29 are connected by the wire 29a with the base,
One end of the existing main rope 6 is connected to the car 10
The existing main rope 6 is cut at the upper portion of the socket 8 in a state where the tension of the spring 8c is invalidated by pulling toward the side, and the end of the existing main rope 6 is inserted into the first connecting member 26b of the main rope connector 26. The existing main rope 6 and the first coupling member 26b are gripped by hand two or three times by hand so that the existing main rope 6 is in close contact with the first coupling member 26b, and a vinyl tape (not shown) is wrapped around the tip of the first coupling member 26b. And are securely connected. Furthermore, the top floor landing 1
3, a new main rope 7 is fed out from the main rope winding drum 18, and an end of the new main rope 7 is inserted into the second connecting member 26c of the main rope connector 26. Handle by hand two or three times so as to be in close contact with the connecting member 26c, wrap a vinyl tape (not shown) around the tip of the second connecting member 26c,
The new main rope 6 and the second connecting member 26c are securely connected.

After connecting one end of the existing main rope 6 and one end of the new main rope 7 via the main rope connector 26 in this way, as shown in FIG. The new main rope 7 is sent out. As a result, the own weight of the other end of the existing main rope 6 (that is, the counterweight 11 side) is greater than the own weight of one end side (that is, the car 10 side). The cable 7 is pulled out and wound around the sheave 3 of the hoisting machine 2 or the like. At this time, the worker 1 on the work scaffold 20 provided in the pit 12 below the hoistway 5
When the other end of the existing main rope 6 is inserted into the main rope guide 24 as shown in FIG. 4, the existing main rope 6 is guided by the main rope guide 24 so as to pass above the center of the round container 23. At the same time, the existing main ropes 6 are received in a state of being rolled up in the round container 23 because the layers are gradually stacked upward from below while rotating along the inner side surface of the round container 23. Thereafter, when the existing main ropes 6 are wound up to the vicinity of the winding plate 25 along the inner side surface of the round container 23, the existing main ropes 6 are sent to the bottom of the round container 23 by the guide of the winding plate 25. Since the existing main ropes 6 are wound around the center of the round container 23, the existing main ropes 6 do not protrude from the round container 23. In this manner, the existing main rope 7 is
After being collected while winding, as shown in FIG. 5, the existing main cable 7 wound and wound by inserting a number line 23b through a main cable binding hole 23a is tied.

When the new main rope 7 is twisted, the main rope connector 2 connecting the existing main rope 6 and the new main rope 7 is twisted.
The twist is absorbed by the rotation of the sixth connection member 26a. As a result, it is possible to collect the existing main rope 7 while rolling it up without protruding from the round container 23.

In this way, the existing main rope 7 is
After being collected and bound by the wire 23b, the winding plate 25 is removed from the round container 23, and the existing main rope 7 is
3 and carried out to the lowest floor landing 14. Next, the other end of the newly installed main rope 7 (that is, the end on the side of the car 10) is grasped by the main rope grasping device 28, and the main rope grasping device 28 is connected to the cable pier 29.
After attaching the frame 10a of the car 10 and the drawer 29 with the base wire 29a, the drawer 29
With the other end of the newly installed main rope 7 pulled toward the car 10 by the operation described above, the other end of the new main rope 7 is
And the socket 8 is fixed to the other end of the new main rope 7, and the socket 8 is connected to the frame 10a of the car 10 via the thimble rod 8a. The main rope grasping device 28 is removed. As a result, the newly established main rope 7
Since the own weight at one end side (ie, the counterweight 11 side) is larger than the own weight at the other end side (ie, the car 10 side),
The other end of the new main rope 7 is in a stretched state.

Next, one end of the new main rope 7 is aligned with the tip of the thimble rod 9a of the counterweight 11, and the new main rope 7 is cut into a predetermined length in consideration of the initial elongation of the new main rope 7. After fixing the socket 9 to the cut end of the cable 7, the socket 9 is connected to the frame 11 a of the counterweight 11 via the thimble rod 9 a.

After removing one existing main rope 6 and attaching one new main rope 7 in this way, the same procedure is repeated for a plurality of remaining main ropes, whereby all the existing main ropes 6 are connected. After the replacement with the new main ropes 7, the worker 15 on the car 10 operates the chain block 17 to lower the car 10, so that the car 10 is balanced with the weight 11.
Are suspended and supported via the new main cable 17. Finally, the chain block 17 and the lifting rope 17a are removed, and the hoist 2 is operated at a low speed to balance the weight 11
Is slightly lifted and separated from the support 19, the support 19 and the work scaffold 20 are dismantled and removed, and the new main rope 7 is removed.
The normal operation is performed by adjusting the tension of the motor.

In the embodiment configured as described above, one end of the existing main rope 6 and one end of the new main rope 7 are connected via the main rope connector 26, and the new main rope 7 is sent out from the top floor landing 13. As a result, the existing main rope 6 is suspended and lowered, and the other end side of the existing main rope 6 is automatically wound up while being received by the round container 22 arranged in the pit 12 of the hoistway 5, so that the existing main rope 6 is conventionally provided. The winch for hanging down the main rope 6 and the main rope winding drum for winding the existing main rope 6 are not particularly required.

In this embodiment, the new main ropes 7 are sent out from the landing 13 on the uppermost floor, so that the new main ropes 7 are wound around the sheave 3 of the hoisting machine 2, and the existing main ropes 6 are rounded. Since the step of collecting in the shape container 22 can be performed at the same time, compared with the conventional method in which the above two steps are sequentially performed,
Main rope replacement work is quick.

In this embodiment, since the twist of the newly installed main cable 7 is absorbed by the rotation of the connecting member 26a of the main cable connector 26, the existing main cable 7 can be connected without protruding from the round container 23. Can be collected while winding up. Furthermore, since the new main rope 7 is wound around the sheave 3 of the hoisting machine 2 while the new main rope 7 is untwisted, the tension of the plurality of new main ropes 7 can be made substantially uniform, and the main rope exchange can be performed. The later tension adjustment work of the newly installed main rope 7 can be performed easily and in a short time.

[0026]

As described above, according to the present invention, the present invention can safely and easily collect an existing main rope without the need for a winch for hanging down the existing main rope or a main rope winding drum for winding the existing main rope. Therefore, there is an effect that the work efficiency of the main cable replacement can be improved.

[Brief description of the drawings]

FIG. 1 is an explanatory view of an elevator provided with an existing main rope winding device according to an embodiment of the present invention.

FIG. 2 is an explanatory view showing a main cable connecting member provided in the existing main cable winding device of FIG. 1;

FIG. 3 is an explanatory view showing a round container and a main rope guide provided in the existing main rope winding device of FIG. 1;

FIG. 4 is a diagram illustrating a wrapping plate mounted inside a round container.

FIG. 5 is a view for explaining a main cable binding hole formed in a round container.

FIG. 6 is a diagram illustrating a process of collecting an existing main rope by a conventional method of exchanging a main rope of an elevator.

FIG. 7 is a diagram illustrating another example of a process of collecting an existing main rope.

FIG. 8 is a diagram illustrating a process of laying a new main rope by a conventional method of exchanging a main rope of an elevator.

FIG. 9 is a perspective view showing the entire configuration of a general rope type elevator.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 machine room 2 hoisting machine 3 sheave 5 hoistway 6 existing main rope 7 new main policy 10 car 11 balancing weight 12 pit 13 top floor landing 14 bottom floor landing 22 existing main rope winding device 23 round container 23a Main cable binding hole 24 Main cable guide 24a Prop 25 Winding plate 26 Main cable connection body 26a Connection member 26b First connection member 26c Second connection member 28 Main cable grasper 29 Stretcher 29a Rope with base

Claims (1)

(57) [Claims] 1. A car and a counterweight which moves up and down in a hoistway, a plurality of main ropes for lifting the car and the counterweight, and the plurality of main ropes are wound around the hoistway. A hoisting machine installed in an upper machine room, and holding the car at an upper part of the hoistway.
Hold the counterweight at the bottom of the hoistway
The existing main rope is slackened by
After cutting one end of the main rope from the car,
One end of the new main rope is connected to one end of the new main rope via the main rope connector.
And send out the new main rope from the top floor of the hoistway
Tomo In existing main rope winding device of the elevator which is adapted to recover the existing main rope while, in at least one of the lower and lowest floor landing of the hoistway, when accepting a state in which wound the existing main rope
Formed at a plurality of locations on the side upward from the bottom
A round container having a hole for main rope tying, a main rope guide for guiding the existing main rope to the round container, detachably mounted on the inside of the round container, downwardly
A winding tapered and having an opening at the bottom
An existing main rope winding device for an elevator , comprising a mounting plate.