JP2005008289A - Method and device for changing main rope of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and a device for changing a rope of an elevator capable of efficiently and economically changing the rope even when a working space such as an elevator without a machine room is narrow. <P>SOLUTION: A car 4 and a balance weight 5 are held respectively. Under a condition that a rotary control brake of a winding sheave 7a is released, a second drum 15 is rotated by an operation of an operation handle without using a driving force of a winding machine 7 to wind up an existing rope 6, and a new rope 18 connected with the existing rope 6 is fed while keeping a constant tension by a first drum 14. These ropes 6 and 18 are sequentially hooked around each pulley and a sheave in an elevating path 1, so that the existing rope 6 is exchanged with the new rope 18. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an elevator rope exchanging method and exchanging apparatus for exchanging a plurality of ropes for driving a car and a counterweight.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in a 2: 1 roping type elevator having a machine room, a counterweight is held by a support body at the lower part of the hoistway and a car is lifted by a lifting means at the upper part of the hoistway, and then the rope holder is placed above the counterweight. Place the existing rope on one side and disconnect one end of this existing rope from the rope clamp and connect it to the new rope. Next, disconnect the other end of the existing rope (cable side end) from the rope clamp and drum And wind up the existing rope around the drum by operating the hoisting machine at low speed, and after feeding the new rope from the drum and winding it around in sequence, disconnect one end of the new rope from the existing rope and connect it to the rope stopper In addition, a method for exchanging the main rope of the elevator in which the other end of the new rope is connected to another rope stopper has been proposed (for example, Patent Documents). Reference.).
[0003]
In recent years, a machine room-less type elevator in which a hoisting machine is installed at an upper part or a lower part in a hoistway has been proposed in order to save space (see, for example, Patent Documents 2 and 3).
[0004]
[Patent Document 1]
JP-A-2-249985 (page 4, upper right column 15th line to page 5, upper left column 14th line, FIGS. 1 and 2)
[0005]
[Patent Document 2]
JP 10-506871 (4th page, 26th line to 5th page, 2nd line, Fig. 1)
[0006]
[Patent Document 3]
JP-A-11-130365 (paragraph numbers 0026 and 0027, FIG. 4)
[0007]
[Problems to be solved by the invention]
By the way, in the state of the art described above, in the state where the load of the car and the counterweight is not applied to the rope at the time of rope replacement, it is impossible to obtain the driving force to send out the rope by the hoisting sheave of the hoisting machine. In this case, it was necessary to install a device for pressing the rope that gives a frictional force between the hoisting sheave of the hoisting machine and the rope.
[0008]
In particular, when the above main rope replacement method is applied to an elevator of a machine room-less type, it is necessary to work in a narrow hoistway, and because space is also required around the hoisting sheave, Since the attachment is difficult, not only the work efficiency is poor, but also the apparatus cost is high, so there is a problem economically. In an elevator having a machine room, the machine room can be used as a work space for exchanging ropes, so that the rope presser can be freely attached to the hoisting machine.
[0009]
The present invention has been made in view of the actual situation in the prior art as described above, and its purpose is to perform rope replacement efficiently and economically even when the work space is narrow like a machine room-less type elevator. It is an object to provide an elevator main rope exchanging method and exchanging apparatus.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 of the present invention includes a weight pulley having both ends connected to a rope fixing portion at the upper part of the hoistway and an intermediate portion provided on a counterweight, and a lower part of the car A new rope is sent out to the top frame of the elevator car in a method of exchanging a plurality of ropes that are sequentially wound around the lower pulley of the car provided on the elevator and the sheave of the hoisting machine. Placing a rope drum unit comprising a first drum and a second drum connected to rotate in the same direction as the first drum; and holding the car in the vicinity of the upper part of the hoistway. A step of holding the counterweight near the lower part of the hoistway, and removing one end of at least two of the existing ropes from the rope fixing part or Separating and connecting to one end of the new rope, removing or separating the other end of the at least two existing ropes from the rope fixing portion, and connecting the other end of the at least two existing ropes to the second A step of connecting to the drum; and rotating the second drum to wind up the at least two existing ropes, and rotating the first drum to send out the new rope, And a step of replacing the new rope.
[0011]
In order to achieve the above object, the invention according to claim 6 of the present invention includes a weight pulley having both ends connected to a rope fixing portion at the upper part of the hoistway and an intermediate portion provided on a counterweight, and a car. In an elevator rope exchanging apparatus for exchanging a plurality of ropes that are sequentially wound around a lower pulley of a car provided at the lower part of the hoisting machine and a hoisting sheave of the hoisting machine, A holding car holding part for holding, a weight holding part for holding the counterweight in the vicinity of the lower part of the hoistway, a first drum for feeding a new rope, and a second drum for winding an existing rope are arranged on substantially the same axis. A rope drum unit that is connected, and a rope connecting portion that connects one end of at least two existing ropes of the existing rope to one end of the new rope. .
[0012]
As described above, in the present invention, the car and the counterweight are respectively held, and by rotating the second drum without using the driving force of the hoisting machine, two or more existing ropes are wound, After the new ropes connected to the existing ropes are sent out from the first drum and these ropes are sequentially hung on the pulleys and sheaves in the hoistway, two or more existing ropes are replaced with new ropes, If the existing rope remains, replace it with a new rope using the same procedure. This eliminates the need to attach a rope presser to the hoisting sheave of the hoisting machine, enabling efficient and economical rope replacement even when the work space is small, such as an elevator without a machine room. .
[0013]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of an elevator main rope exchanging method and exchanging apparatus according to the present invention will be described with reference to the drawings.
[0014]
FIG. 1 is a flowchart showing an elevator main rope exchanging method according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional view showing an elevator main rope exchanging apparatus according to the present embodiment, and FIG. 3 is a main rope of the present embodiment. FIG. 4 is a front view of a rope connecting portion provided in the main rope exchanging apparatus according to the present embodiment, and FIG. 5 is a diagram showing a rope connected to a pulley. FIG. 6 is a side view of a rope drum unit provided in the main rope exchanging device of the present embodiment, FIG. 7 is a front view of the rope drum unit provided in the main rope exchanging device of the present embodiment, and FIG. FIG. 8 is an explanatory view showing an enlarged shaft portion of the rope drum unit of FIG. 7, and FIG. 9 is an explanatory view showing an enlarged rope fixing support of the rope drum unit of FIG.
[0015]
The elevator shown in FIGS. 2 and 3 is a guide rail 2 erected over the entire process of the hoistway 1 and a car that is guided by the guide rail 2 and moves up and down between the floors 3a and 3n of the hoistway 1. 4, a counterweight 5 that moves up and down in the hoistway 1 relative to the car 4, a plurality of existing ropes 6 that lift the car 4 and the counterweight 5, and a lower part 1 a of the hoistway 1. And a hoisting machine 7 for driving the existing rope 6.
[0016]
As shown in FIG. 3, the existing rope 6 has one end 6 a connected to the vicinity of the upper portion 1 b of the hoistway 1 by a rope fixing portion 9, and an intermediate portion of the existing rope 6 is attached to the lower portion of the car 4. The pulley 4a, the turning pulley 8a provided in the upper beam 8 near the upper part 1b of the hoistway 1, the hoisting sheave 7a of the hoisting machine 7, the other turning pulley 8b provided in the upper beam 8, and the counterweight 5 The other end 6 b of the existing rope 6 is connected to the vicinity of the upper part 1 b of the hoistway 1 by another rope fixing part 10.
[0017]
As shown in FIG. 2, the main rope exchanging device of the present embodiment is placed on the release lever 7 b that opens the rotation control brake of the hoisting sheave 7 a of the hoisting machine 7 and the car 4. A rope drum unit 13 to be installed, and a car holding unit for holding the car 4 in the vicinity of the upper part 1b of the hoistway 1, for example, a wire 19 and a weight holding part for holding the counterweight 5 in the vicinity of the lower part 1a of the hoistway 1, For example, a jack support 20, a rope connecting portion 21 that connects the existing rope 6 and the replacement new rope 18, and temporary pulleys 32 and 34 that are temporarily installed on both ends of the upper beam 8 via wires 31 and 33, respectively. And a rope fixing support 24 shown in FIG.
[0018]
As shown in FIGS. 6 and 7, the rope drum unit 13 is arranged on substantially the same axis, and the first drum 14 that sends out three new ropes 18 and the second drum that winds up three existing ropes 6. 15, a drum support 16 that rotatably supports these drums 14, 15, and a roller 17 attached to the lower part of the drum support 16. The first drum 14 and the second drum 15 is individually provided for each rope.
[0019]
The drum support 16 supports the drum shaft 13a through the pair of bearings 13b and a pair of bearings 13b that receive both ends of the drum shaft 13a. A frame member 13c and an operation handle 13e for rotating the drum shaft 13a via a gear 13d are provided. The frame member 13c has a drum receiving base 13f for receiving the drums 14 and 15, a jack bolt 13g for raising and lowering the drum receiving base 13f, and the rotation of the first drum 14 to control the operation of sending out the new rope 18. A brake member 13h is mounted.
[0020]
The first drum 14 is rotatably provided with respect to the drum shaft 13a, and its rotation is suppressed by the brake member 13h. The drum diameter L2 of the first drum 14 has a predetermined minimum diameter so as not to damage the new rope 18.
[0021]
The second drum 15 is connected to the drum shaft 13a via the key 13j shown in FIG. 8, and when the operation handle 13e attached to the drum shaft 13a is rotated, the second drum 15 is in the same direction. By rotating via the gear 13d at this time, the force for rotating the operation handle 13e is reduced. The drum diameter L1 of the second drum 15 winds up the existing rope 6 to be replaced, so there is no limit to the size of the drum diameter L1, but the drum diameter L1 is set to the minimum diameter as much as possible to the hardness of the existing rope 6. Yes. When the operator rolls the existing rope 6 by rotating the operation handle 13e against the running weight of the existing rope 6 and the running resistance of the hoisting sheave 7a of the hoisting machine 7, the operator runs with the drum diameter L1 and the own weight. Rotational torque due to resistance is required, and in order to reduce this rotational torque, it is possible to save labor by reducing the drum diameter L1 as much as possible.
[0022]
Further, the drum shaft 13a inserted in the center of the drums 14 and 15 is supported by bearings 13d on both sides of the frame member 13c, so that the load of the drums 14 and 15 is not applied to the gear 13d.
[0023]
As shown in FIG. 4, the diameter D of the rope connecting portion 21 that connects the existing rope 6 and the new rope 18 is equal to or larger than the diameters d of the existing rope 6 and the new rope 18. As shown, it is set to be less than the gap δ between the rope groove 23 and the slip stopper 22 of the car lower pulley 4a and the weight pulley 5a.
[0024]
The drum wall 15a of the second drum 15 shown in FIG. 9 is provided with a plurality of rope end fixing holes (not shown), and the rope fixing support 24 is a bolt inserted into the rope end fixing hole. 25 and nuts 26 and the like that are respectively screwed into both ends of the bolt 25. The two strands 6c at the end of the existing rope 6 are sandwiched between the remaining strands and detached even if the second drum 15 rotates. There is no way.
[0025]
And in the main rope replacement | exchange method of this embodiment, the several existing rope 6 is replaced | exchanged for the new rope 18 according to the operation | work procedure shown in FIG. That is, three new lengths of new rope 18 are wound around the first drum 14 in advance, and as shown in FIG. 3, the drum base body 12 is attached on the car 4 as shown in step S1, and is moved up and down. A rope drum unit 13 is prepared on the upper floor 3n of the road 1, and a loading / unloading plate 12a is passed between the drum base body 12 and the upper floor 3n, and then a roller 17 is rotated on the plate 12a to rotate the rope. The drum unit 13 is placed on the drum base body 12 on the car 4.
[0026]
Next, as step S2, as shown in FIG. 2, the car 4 is moved to a position where the work of removing the ends 6a, 6b of the existing rope 6 and the work of fixing the new rope 18 after replacement can be performed near the upper part 1b of the hoistway 1. After stopping the car 4 so that the upper part 4b of the car comes and holding the car 4 through the wire 19 from the rail bracket 2a at that position, the jack support 20 is installed at the lower part of the counterweight 5 as step S3. The counterweight 5 is raised and held by the jack support 20 so that the load of the counterweight 5 is not applied to the existing rope 6.
[0027]
Next, as step S4, as shown in FIG. 2, the release lever 7b is operated at the lower part 1a of the hoistway 1 to release the rotation control brake of the hoisting sheave 7a. As step S5, the three existing ropes 6 The other end 6 b is removed from the rope fixing part 10 of the upper part 1 b of the hoistway 1, and one end 18 a of the three new ropes 18 is taken out from the first drum 14 and the other end of the existing rope 6 is connected via the rope connection part 21. 6b, and is pulled out to each pulley in the hoistway 1 through a temporary pulley 34 suspended from the upper beam 8 by a wire 33. In addition, after holding the counterweight 5 between the above steps S4 and S5 and releasing the rotation control brake of the hoisting sheave 7a with the release lever 7b, the car 4 is placed in a safe and easy-to-work position. You can do the lifting work.
[0028]
In step S6, one end 6a of the three existing ropes 6 is removed from the rope fixing portion 9 of the upper part 1a of the hoistway 1 and is wound around the temporary pulley 32 suspended from the upper beam 8 by the wire 31. Attach the rope fixing support 24 to one end 6a of the cable 6 and insert the rope fixing support 24 into the rope end fixing hole of the second drum 15 to connect the one end 6a of the existing rope 6 to the second drum 15. To do. In that case, it connects to the 2nd drum 15 so that the end 6a of the existing rope 6 may be wound in the reverse direction to the winding direction to the 1st drum 14 of the new rope 18. FIG.
[0029]
Next, in step S7, the brake member 13h is loosened so that the first drum 14 is rotatable, the second drum 15 is rotated by operating the operation handle 13e, and the existing rope 6 is wound around the second drum 15. As a result, the new rope 18 is replaced in all parts through the lower pulley 4a, the turning pulley 8a, the hoisting sheave 7a, the turning pulley 8b, and the weight pulley 5a through which the existing rope 6 passes. Next, as step S8, when all of the existing rope 6 is wound around the second drum 15, one end 18a of the new rope 18 is disconnected from the rope connection portion 21 and is subjected to terminal treatment on the rope fixing portion 9 of the upper portion 1b of the hoistway 1. To connect. Thereafter, as step S9, the new rope 18 is cut to a predetermined length, subjected to terminal processing, and connected to the rope fixing portion 10 of the upper portion 1b of the hoistway 1.
[0030]
After replacing the three existing ropes 6 with the new rope 18 in this way, if other existing ropes 6 remain, replace them with the new rope 18 by repeating the above steps S5 to S9. Then, in step S10, the holding state of the car 4 and the counterweight 5 is released. In step S11, the brake sheave 7a is released, and the rope drum unit 13 is lowered from the car 4. To complete.
[0031]
In this embodiment configured as described above, the resistance of the rope movement when the existing rope 6 is replaced is released by holding the car 4 and the counterweight 5 and releasing the rotation control brake of the hoisting sheave 7a. In this state, the second drum 15 is rotated without using the driving force of the hoisting machine 7 to wind up the existing ropes 6, and the new ropes 18 connected to these existing ropes 6 are removed from the first drum 14. The existing rope 6 is replaced with a new rope 18 by feeding the ropes 6 and 18 around the pulleys and sheaves in the hoistway 1 in sequence, so that the rope presser is pressed against the hoisting sheave 7a of the hoisting machine 7. It is not necessary to install a device, and even when the work space is small like an elevator without a machine room, the rope can be exchanged efficiently and economically.
[0032]
Further, in the present embodiment, the brake member 13h of the rope drum unit 13 suppresses the operation of feeding the new rope 18 from the first drum 14, and the operation handle 13e is rotated so as to wind around the second drum 15. Since the length of the rope 6 and the length of the new rope 18 sent out from the first drum 14 are made equal, the rope tension of these ropes 6 and 18 is kept constant and the rope is kept under a constant tension. 6 and 18 can be prevented from coming off from each pulley groove or caught by equipment in the hoistway, and the rope can be exchanged smoothly.
[0033]
Further, in the present embodiment, when three existing ropes 6 are exchanged at the same time, there is an error between sending the new rope 18 from the first drum 14 and winding the existing rope 6 around the second drum 15. However, since the first drum 14 can rotate independently for each rope, the rope tension can be finely adjusted uniformly for each rope. As a result, the three existing ropes 6 Simultaneous exchange can be performed easily.
[0034]
In this embodiment, as shown in FIGS. 4 and 5, the diameter D of the rope connecting portion 21 is equal to or less than the clearance δ between the rope groove 23 of the weight pulley 5 a and the car lower pulley 4 a and the rope detachment stopper 22. Thus, the existing rope 6 and the new rope 18 can pass through the pulleys 4a and 5a without removing the rope detachment stopper 22. Further, since the diameter D of the rope connecting portion 21 is connected so as to be equal to or larger than the diameter d of the existing rope 6 and the new rope 18, the rope can be replaced without coming off the rope groove 23.
[0035]
In the above embodiment, the car 4 is described as being suspended and held by the wire 19 from the rail bracket 2a. However, the car 4 may be held on the upper portion 1b of the hoistway 1 even in other structures. For example, the same effect can be obtained even when the car 4 is held using an emergency stop device or the like.
[0036]
Furthermore, in the above-described embodiment, the structure in which the counterweight 5 is held by the jack support 20 is similarly applied to the tension of the existing rope 6 by holding the counterweight 5 in the lower portion 1a of the hoistway 1 even in other configurations. As long as it can be loosened, for example, it is possible to suspend and hold the rail bracket or the like with a lifting machine such as a chain block.
[0037]
Furthermore, in the said embodiment, although the rope drum unit 13 used when performing replacement | exchange of the three existing ropes 6 simultaneously was illustrated, the number of the existing ropes 6 is not limited to three, In other rope numbers Obviously, there is a similar effect.
[0038]
Further, in the above embodiment, the movement direction of the existing rope 6 at the time of exchanging the rope is described as entering from the lower pulley 4a of the car 4 and pulling out from the weight pulley 5a of the counterweight 5. Has the same effect and is included in the present invention.
[0039]
Further, in the above-described embodiment, the case where the rope drum unit 13 is installed on the upper part of the car 4 has been described. However, even when the rope drum unit 13 is arranged on the upper floor 3n of the hoistway 1, the same effect can be obtained. include.
[0040]
FIG. 10 is a longitudinal sectional view showing an elevator main rope exchanging apparatus according to another embodiment of the present invention. 10, the same components as those shown in FIGS. 1 to 9 described above are denoted by the same reference numerals.
[0041]
The main rope exchanging device of this embodiment shown in FIG. 10 is different from that shown in FIG. 2 in that a rope return pulley unit 35 is provided in the upper part 1b of the hoistway 1 instead of the temporary pulley 32. Other configurations are basically the same.
[0042]
The rope return pulley unit 35 includes a rope receiver 36 that allows the existing rope 6 to rise vertically from the lower pulley 4a of the car 4 and pass it, and the existing rope 6 that has passed this rope receiver 36 passes through the drum of the second drum 15. And a rope pulley 37 that hangs down in the center of the width.
[0043]
In this embodiment, the existing rope 6 sent from the car lower pulley 4 a of the car 4 is received by the rope receiver 36 near the upper part 1 b of the hoistway 1 without difficulty, and the drum of the second drum 15 is received from the rope pulley 37. The existing rope 6 is suspended toward the center of the width.
[0044]
In the embodiment configured as described above, the existing rope 6 hangs down to the center of the drum width of the second drum 15, so that the existing rope 6 can be wound up without being offset by the rotation of the second drum 15. Since the difference in the winding amount of each second drum 15 can be reduced and the impact between the existing rope 6 and the drum surface of the second drum 15 and the occurrence of loosening can be prevented when the offset is eliminated, the existing rope 6 can be wound smoothly.
[0045]
【The invention's effect】
As described above, the present invention winds up two or more existing ropes by rotating the second drum without using the driving force of the hoisting machine, and the new ropes connected to these existing ropes. The two or more existing ropes are replaced with new ropes by feeding them from the first drum and sequentially hanging these ropes around the pulleys and sheaves in the hoistway. It is not necessary to attach a rope pressing device to the upper sheave, and even when the work space is small like an elevator without a machine room, the rope can be exchanged efficiently and economically.
[Brief description of the drawings]
FIG. 1 is a flowchart showing an elevator main rope replacement method according to an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view showing an elevator main rope exchanging apparatus according to the present embodiment.
FIG. 3 is a longitudinal sectional view showing a process of placing a rope drum unit provided in the main rope exchanging apparatus of the present embodiment on a car.
FIG. 4 is a front view of a rope connecting portion provided in the main rope exchanging device of the present embodiment.
FIG. 5 is an explanatory view showing a state in which a rope is wound around a pulley.
FIG. 6 is a side view of a rope drum unit provided in the main rope exchanging device of the present embodiment.
FIG. 7 is a front view of a rope drum unit provided in the main rope exchanging device of the present embodiment.
FIG. 8 is an explanatory view showing an enlarged shaft portion of the rope drum unit of FIG. 7;
9 is an explanatory view showing, on an enlarged scale, a rope fixing support of the rope drum unit of FIG.
FIG. 10 is a longitudinal sectional view showing an elevator main rope exchanging apparatus according to another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hoistway 4 Riding car 4a Car lower pulley 5 Balance weight 5a Weight pulley 6 Existing rope 7 Hoisting machine 7a Hoisting sheave 7b Release lever 9, 10 Rope fixing part 12 Drum base body 13 Rope drum unit 13a Drum shaft 13c Frame member 13e Operation handle 13h Brake member 14 First drum 15 Second drum 15a Drum wall portion 16 Drum support 18 New rope 19 Wire (car holding portion)
20 Jack support (weight holding part)
21 rope connection portion 24 rope fixing support 31 wire 32 temporary pulley 33 wire 34 temporary pulley 35 rope return pulley unit 36 rope receiver 37 rope pulley

Claims (13)

Both ends are connected to the rope fixing part at the upper part of the hoistway, and the intermediate part is sequentially connected to the weight pulley provided on the counterweight, the car lower pulley provided on the lower part of the car, and the hoisting sheave of the hoisting machine. In the elevator main rope replacement method for exchanging multiple ropes to be hung,
A step of placing a rope drum unit having a first drum for feeding a new rope and a second drum for winding an existing rope on the top frame of the car, and holding the car near the top of the hoistway A step of holding the counterweight near the lower portion of the hoistway, and removing or separating one end of at least two of the existing ropes from the rope fixing portion and connecting to one end of the new rope. Removing the other end of the at least two existing ropes from the rope fixing portion and connecting the other end of the at least two existing ropes to the second drum; and While rotating the drum to wind up the at least two existing ropes, the first drum rotates to send out the new rope, The main rope replacement method of an elevator, characterized by a step of exchanging serial existing rope and the new rope. The method includes a step of providing a drum base body for placing the rope drum unit on the car, and a step of pre-winding the new rope suitable for a predetermined rope length to be replaced around the first drum. The elevator main rope replacement method according to claim 1. 2. The elevator main rope replacement method according to claim 1, comprising a step of providing a rope return pulley unit around which the existing rope is wound near an upper portion of the hoistway. 2. The elevator according to claim 1, comprising a step of applying a suppression brake to the first drum that sends out the new rope, and a step of releasing a brake of the hoisting machine on which the existing rope is applied. Main rope replacement method. Attaching a rope fixing support to the end of the existing rope; and attaching the rope fixing support to a rope end fixing hole provided in a drum wall of the second drum. The elevator main rope replacement method according to claim 1. Both ends are connected to the rope fixing part at the upper part of the hoistway, and the intermediate part is sequentially connected to the weight pulley provided on the counterweight, the car lower pulley provided on the lower part of the car, and the hoist sheave of the hoist In an elevator rope exchange device that exchanges multiple ropes that are hung around,
A car holding unit for holding the car near the upper part of the hoistway, a weight holding part for holding the counterweight near the lower part of the hoistway, a first drum for feeding a new rope, and an existing rope are wound. A main rope exchanging apparatus for an elevator, comprising: a rope drum unit including a second drum to be taken; and a rope connecting portion that connects at least two of the existing ropes and the new rope. . The main part of the elevator according to claim 6, wherein the second drum is interlocked with a drum shaft connected to an operation handle, and the first drum is rotatably provided with respect to the drum shaft. Rope changer. The elevator main rope exchanging apparatus according to claim 6 or 7, further comprising a brake member that suppresses an operation of feeding the new rope from the first drum. The elevator main rope exchanging apparatus according to claim 6 or 7, wherein the first drum and the second drum are individually provided for each rope. The elevator main rope exchanging apparatus according to claim 6, wherein the rope drum unit is provided with a drum support that rotatably supports the first drum and the second drum. The elevator main rope exchanging apparatus according to claim 6, wherein a plurality of rope end fixing holes are provided in a drum wall portion of the second drum. The elevator main rope exchanging apparatus according to claim 6 or 7, wherein a rope return pulley unit around which the existing rope is wound is provided near an upper portion of the hoistway. The rope return pulley unit includes a rope receiver that allows the existing rope to stand up and pass vertically from the lower pulley of the car, and a rope pulley that causes the existing rope that has passed through the rope receiver to hang down on the second drum. The elevator main rope exchanging device according to claim 12.

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