JP6715158B2 - Elevator rope cleaning equipment - Google Patents

Description

The present invention relates to a rope cleaning device for an elevator, and more particularly to a rope cleaning device for cleaning a wire rope in association with traveling movement of the wire rope.

The applicant of the present invention has proposed a rope cleaning device for an elevator of this type, which is described in Patent Document 1, for example. The rope cleaning device described in Patent Document 1 is a so-called rotary wire brush type that is temporarily installed as a maintenance tool during maintenance and inspection of an elevator. For example, a speed governor rope is in contact with the wire brush. When traveling in the longitudinal direction, the wire brush rotates due to friction with the speed governor rope, and the oil brush, dust, and other adhering substances that adhere to the speed governor rope are scraped off. Will be removed.

The reason why such a rope cleaning device is required is as follows. Elevator wire ropes that use sisal or PP fiber as the central fiber (fiber core) are widely adopted. By adding a large amount of oil (grease) to the central fiber and strand, It prevents fretting wear and corrosion between strands and wires. If the oil contained in the wire rope exudes and covers the surface of the wire rope together with dust, etc., it becomes difficult to visually inspect the wire rope and measure the rope diameter accurately. This is because the rope diameter is enlarged due to such factors as a secondary problem such as interference with a structural member such as a rope disengagement and abnormal noise is generated.

JP, 2011-105493, A

However, in a wire brush type rope cleaning device represented by Patent Document 1, it is inevitable that oil and the like scraped off by the wire brush will be scattered, so it is necessary to install a case or cover for preventing scattering. However, there is a problem that the structure becomes complicated. Moreover, it was difficult to sufficiently remove oil having low viscosity exuded on the surface of the wire rope only by the wire brush. Therefore, it is necessary to use wiping with a waste cloth and the like, and there is a problem that the number of rope cleaning steps increases.

The present invention has been made in view of such a problem, and is considered to be able to efficiently wipe off oil and the like adhering to the wire rope regardless of the degree of viscosity without causing scattering. And a rope cleaning device for an elevator.

According to the present invention, as described in claim 1, a rope cleaning device for an elevator in which a wiping unit surrounds a wire rope that travels in a vertical direction, and the wire rope is cleaned based on a relative sliding operation between the two. Is. Further, the wiping unit is formed in a tapered shape such that the outer peripheral surface is reduced in diameter downward, and a tubular sliding member capable of reducing and expanding the diameter, into which the wire rope is inserted in the central portion, An outer cylinder member that accommodates the sliding member and makes a taper contact with the outer peripheral surface of the sliding member. On top of that, when the wire rope travels downward, the sliding member contracts and slides while gripping the wire rope to exert a cleaning function, while the wire rope travels upward. It is characterized in that the gripping force with respect to the wire rope is released by allowing the diameter of the sliding member to expand.

In this case, the wire rope of the elevator to be cleaned is assumed to be the main rope or the like in addition to the speed governor rope described in claim 8. Then, the purpose of cleaning with the rope cleaning device is, when the oil content such as grease pre-impregnated in the wire rope exudes and adheres to the outer peripheral surface, the oil content such as grease adhered to the outer peripheral surface or This is because dust and foreign matter (including these, which will be referred to as “oil content and the like” below) attached together with the oil content are removed by wiping.

Further, in order to surround the existing wire rope suspended at a predetermined position with the sliding member and to insert the wire rope into the central portion of the sliding member, as described in claim 2. The sliding member is preferably formed by an assembly of a plurality of divided pieces that are divided in the circumferential direction and are independent of each other. More preferably, as described in claim 3, the sliding member is formed of an assembly of three or more divided pieces.

In addition, for the same reason that the sliding member is formed of an assembly of a plurality of divided pieces, as described in claim 4, the outer cylinder member includes a plurality of covers divided in the circumferential direction. It is desirable that the members are detachably coupled.

Further, according to the function of the sliding member, the inner diameter of the sliding member at the minimum diameter reduction is smaller than the diameter of the wire rope as described in claim 5.

Further, depending on the length of the wire rope to be cleaned and the like, it is desirable that at least two wiping units are arranged on the same axis of the traveling route of the wire rope as described in claim 6.

In that case, as described in claim 7, one wiping unit is a movable type that moves in the traveling direction of the wire rope in conjunction with the traveling movement of the wire rope, and the remaining wiping units are fixed at fixed positions. It is desirable to be of the formula.

Therefore, according to at least the first aspect of the invention, when the wire rope is traveling downward, the traveling movement direction and the self-weight direction of the sliding member coincide with each other. Therefore, due to the frictional force between the wire rope and the sliding member, the sliding member is drawn downward and the diameter of the sliding member is reduced to grip the wire rope. On the other hand, since the downward traveling force of the wire rope is larger than the gripping force of the sliding member on the wire rope, the wire rope slides under the gripping force of the sliding member in the radial direction. It will travel while sliding relative to the member.

During the sliding operation between the wire rope and the sliding member, oil or the like exuding and adhering to the outer peripheral surface of the wire rope is wiped off by the sliding member and accumulated on the sliding member. Become.

According to the present invention, the sliding member exerting a reducing force on the wire rope wipes off the oil and the like adhering to the outer peripheral surface of the wire rope, so that the wiped oil and the like is scattered. With such a simple structure, oil and the like can be efficiently wiped off regardless of the degree of viscosity. Further, unlike the conventional case, it is not necessary to additionally use the wiping of oil and the like with a waste cloth and the like, and the number of rope cleaning steps can be reduced.

Further, as described in claims 2 and 3, the sliding member is formed as a divided structure, or as described in claim 4, the outer cylinder member is formed as a divided structure. And, the insertion work into the existing wire rope wound around the predetermined position can be easily performed.

Further, as described in claims 6 and 7, when a plurality of wiping units are provided on the traveling path of the wire rope, oil and the like adhering to the wire rope can be removed more efficiently. There are advantages.

Explanatory drawing which shows the schematic structure of the elevator which applied the rope cleaning apparatus which concerns on this invention to the speed governor rope. FIG. 2 is a bird's-eye view enlarged perspective view of a wiping unit which is a main element of the rope cleaning device shown in FIG. 1. 3 is an explanatory plan view of the wiping unit shown in FIG. 2. FIG. It is a figure which shows the detail of the wiping unit shown in FIG. 2, (a) is a disassembled perspective view, (b) is an exploded perspective view of the wiping pad of the same figure (a). Sectional explanatory drawing which shows the function of the wiping unit at the time of downward traveling movement of a governor rope. Sectional explanatory drawing which shows the function of the wiping unit at the time of upward traveling movement of a governor rope.

1 to 6 show a more specific form for carrying out the rope cleaning device for an elevator according to the present invention, and particularly FIG. 1 shows a schematic structure of an elevator in which the rope cleaning device according to the present invention is applied to a speed governor rope. Is shown. 2 and the following drawings show the details of the wiping unit, which is the main element of the rope cleaning device.

The elevator shown in FIG. 1 is a so-called traction system in which a car 2 is hung on one end of a main rope 1 wound around a hoisting machine (not shown) and a counterweight is hung on the other end. This is a well-known structure in which the car 2 and the counterweight are moved up and down in the hoistway by driving the main rope 1 by a machine. Although a plurality of guide roller units 3 are provided above and below the car 2 and these guide roller units 3 are guided by the guide rails, the guide rollers are omitted in FIG. 1.

A governor 4 is provided at the top of the hoistway, while a tension applying device 5 is provided at the bottom of the hoistway. In this tension applying device 5, a weight case 7 is suspended and supported at the center of a rotatable tension pulley (tension sheave) 6, and a weight 8 having a predetermined weight is mounted on the weight case 7. A speed governor rope (governor rope) 9 which is a wire rope is wound around the speed governor 4 and the tension pulley 6, and the speed governor rope 9 has the weight of the tension applying device 5 as a whole. The corresponding tension is applied. The speed governor rope 9 has a well-known structure in which a plurality of strands (twisted wires) are further twisted together with a central fiber.

On the other hand, a link mechanism 10 of an emergency stop device is attached to the car 2 side. Bell cranks 11a and 11b are provided at both ends of the link mechanism 10, and a lift rod 12 extending downward is connected to each of the bell cranks 11a and 11b. One of the bell cranks 11a is connected to a connecting portion 9c of the speed governor rope 9, and each lift rod 12 is connected to an emergency stop device (not shown) under the car 2.

As a result, the speed governor rope 9 travels as the car 2 moves up and down, and the speed governor 4 rotates. Then, when the speed of the car 2 abnormally increases, the speed governor 4 detects this and grips the speed governor rope 9, and the both lift rods 12 are connected via the link mechanism 10 including the bell cranks 11a and 11b. By pulling up, the emergency stop device is activated to stop the car 2.

The bell crank 11a of the link mechanism 10 is connected to the connecting portion 9c on the left side of the speed governor rope 9 shown in FIG. 1, and the speed governor rope 9 travels in accordance with the vertical movement of the car 2. Although it moves, the connecting portion 9c does not exceed the speed governor 4 and the tension imparting device 5, so here, for the sake of convenience, the left side portion of the speed governor rope 9 shown in FIG. The drive side 9a of the machine rope 9 will be referred to, and the right side portion will be referred to as the driven side 9b of the speed governor rope 9.

Wiping units 13A to 13C, which are, for example, three rope cleaning units in total, are provided in the hoistway along the traveling movement path on the driven side 9b of the governor rope 9. These three wiping units 13A to 13C are respectively provided so as to surround the outer peripheral side of the driven side 9b of the speed governor rope 9 to be cleaned, and are driven by the speed governor rope 9 located on the same axis. The side 9b is inserted through the central portion of each wiping unit 13A to 13C.

Of these three wiping units 13A to 13C, the upper and lower two wiping units 13A and 13B have a structure such as a guide rail for guiding the car 2 or the counterweight or a beam in the hoistway. It is detachably fixed to this as a mounting member. The central wiping unit 13C is detachably fixed to the upper portion of the car 2 via the support arm 14. As a result, the pair of upper and lower wiping units 13A and 13B are so-called fixed position fixed types, whereas the central wiping unit 13C is a movable type that moves up and down together with the car 2.

In the example of the elevator shown in FIG. 1, the respective wiping units 13A to 13C are not always installed in the hoistway, and cleaning of the governor rope 9 is necessary, for example, in the maintenance and inspection work of the elevator. It is temporarily installed at any time and will be removed after the cleaning work of the speed governor rope 9 is completed.

The three wiping units 13A to 13C shown in FIG. 1 have the same structure, and the details of the uppermost wiping unit 13A will be described here as a representative with reference to FIGS.

2 is a bird's eye view of the wiping unit 13A shown in FIG. 1, and FIG. 3 is a plan view of the wiping unit 13A shown in FIG. 4A is an exploded perspective view of the wiping unit 13A shown in FIG. 2, and FIG. 4B is an exploded perspective view of the wiping pad 17 shown in FIG.

As shown in FIG. 2, the wiping unit 13</b>A includes a base plate 15 having a substantially rectangular flat plate shape, a cup-shaped holder 16 as an outer cylinder member placed on the base plate 15, and an inside of the holder 16. And a wiping pad 17 as a sliding member. The base plate 15 has a function of supporting the holder 16 by being fixed to the mounting member on the other side, and the diameter of the speed governor rope 9 is adjusted so as to allow the driven side 9b of the speed governor rope 9 to pass through in the central portion. A hole (not shown) that is sufficiently larger than the above is formed.

The holder 16 is formed by abutting two half-covers, which are half-covers, as a set of cover members. As shown in FIGS. 3 and 4, each half cover 18 has flange portions 18b on both sides of a semicircular tapered barrel portion 18a, for example, by press-forming a metal plate of uniform thickness and a predetermined size. Is formed as. A pair of bolt holes 19 are formed in each flange portion 18b.

Then, the two flanges 18b of the pair of half covers 18 are abutted against each other, and the holder 16 is formed by detachably coupling the bolts 20 and the nuts 21 inserted into the respective bolt holes 19. There is. As shown in FIGS. 2 and 4, the holder 16 formed by the set of two half covers 18 is a tapered cone in which the portion excluding each flange portion 18b is smoothly reduced in diameter from the upper end side to the lower end side. Formed as a shape.

Further, as shown in FIG. 3, the wiping pad 17 has a so-called piece-shaped three-part structure in which a rope insertion hole 22 that allows passage of the driven side 9b of the governor rope 9 is formed at the center thereof. It is formed by an assembly of divided pieces 17a. The wiping pad 17 can be understood as a cylindrical body having a rope insertion hole 22 divided into three equal parts in the circumferential direction with a slit groove, and the outer peripheral surface of each piece-shaped divided piece 17a independent from each other. Is formed in a tapered surface that matches the inner peripheral surface of the holder 16.

As a result, as shown in FIGS. 2 and 3, when the wiping pad 17 including the three divided pieces 17 a is housed in the holder 16, the outer peripheral surface of the wiping pad 17 is in close contact with the inner peripheral surface of the holder 16. Become. At the same time, the wiping pad 17 can be reduced in diameter and expanded in accordance with the relative movement of the holder 16 and the wiping pad 17 in the axial direction.

Then, as shown in FIG. 4A, when the three divided pieces 17a are abutted with each other without a gap and the size of the rope insertion hole 22 is set to the diameter at the minimum contraction, the rope insertion hole 22 is The diameter when the minimum diameter is reduced is set in advance so as to be smaller than the diameter of the speed governor rope 9. Conversely, as shown in FIG. 3, when the speed governor rope 9 is inserted into the rope insertion hole 22 of the wiping pad 17 housed in the holder 16, each divided piece forming the wiping pad 17 is inserted. A predetermined gap G is secured between the 17a in the form of a slot groove. The upper surface of each of the divided pieces 17a forming the wiping pad 17 is a flat surface.

Here, each of the divided pieces 17a forming the wiping pad 17 is formed of a rubber-based elastic material such as rubber or urethane, or a resin material such as POM (polyacetal resin), Alternatively, those molded by the aluminum die casting method can be used. That is, as described later, the material of each divided piece 17a is not necessarily limited to a specific material as long as oil or the like attached to the speed governor rope 9 can be wiped off. However, when the wiping pad 17 formed of a rubber-based elastic material is used, a relatively hard rubber is used so that the divided pieces 17a forming the wiping pad 17 do not excessively reduce or expand in diameter. It is desirable to use a system elastic material.

Further, the number of the divided pieces 17a forming the wiping pad 17 is not necessarily limited to three and may be two or more. Similarly, the holder 16 may also be formed by a cover member divided into three or more parts. However, in order to stabilize the centering function at the time of diameter reduction and expansion based on the relative movement of the wiping pad 17 and the holder 16, it is desirable that the number of divided pieces is three or four. Further, the holder 16 and the wiping pad 17 may have a polygonal pyramid shape instead of the conical shape.

As described above, the other wiping units 13B and 13C shown in FIG. 1 other than the wiping unit 13A have the same structure as the wiping unit 13A.

Therefore, according to the rope cleaning device whose main element is the plurality of wiping units 13A to 13C having such a structure, for example, when cleaning the speed governor rope 9 at the time of maintenance and inspection work of the elevator, it is shown in FIG. As described above, it is assumed that the rope cleaning units 13A to 13C are temporarily installed in the same direction on the driven side 9b of the speed governor rope 9 at three locations on the traveling path. Then, the car 2 is moved up and down, and the speed governor rope 9 travels according to the up and down movement of the car 2.

In this case, the pair of upper and lower wiping units 13A and 13B are fixed to predetermined positions in the hoistway, whereas the central wiping unit 13C is fixed to the upper part of the car 2. There are some as mentioned above. Focusing on the upper and lower rope cleaning units 13A and 13B, when the car 2 moves upward, the driven side 9b of the speed governor rope 9 moves downward from above in the respective wiping units 13A and 13B. When the car 2 travels and conversely moves down, the driven side 9b of the speed governor rope 9 travels in the respective wiping units 13A and 13B from below to above.

On the other hand, when focusing on the central wiping unit 13C, since the central wiping unit 13C is fixed to the car 2, it moves together with the car 2 in the same direction. Then, the driving side 9a of the speed governor rope 9 inserted into the central wiping unit 13C is reversed in the traveling direction with respect to the driving side 9a of the speed governor rope 9 connected to the car 2. Therefore, the relative movement direction between the central wiping unit 13C and the driven side 9b of the governor rope 9 has the same relationship as that of the pair of upper and lower wiping units 13A and 13B.

That is, in the central wiping unit 13C, when the car 2 moves upward, the driven side 9b of the speed governor rope 9 travels in the wiping unit 13C from the upper side to the lower side, and vice versa. When the vehicle moves downward, the driven side 9b of the speed governor rope 9 travels in the wiping unit 13C from the lower side to the upper side. The wiping unit 13C at the center moves relative to the driven side 9b of the speed governor rope 9 that is traveling while moving up and down together with the car 2. The speed is double that of the wiping units 13A and 13B.

Even if the central wiping unit 13C moves up and down together with the car 2, the upper and lower wiping units 13A and 13B are prevented from interfering with the upper and lower wiping units 13A and 13B. The position of 13B is preset.

5 is a cross-sectional explanatory view showing the function of the wiping unit 13A when the speed governor rope 9 travels downward, and similarly, FIG. 6 shows the function of the wiping unit 13A when the speed governor rope 9 travels upward. It is a section explanatory view. 5 and 6 are cross-sectional explanatory views taken along the abutting surfaces of the half covers 18 forming the holder 16 shown in FIG.

As shown in FIG. 5, when the driven side 9b of the speed governor rope 9 is stationary without traveling, the wiping pad 17 accommodated in the holder 16 comes into contact with the inner peripheral surface of the holder 16 by a taper surface due to its own weight. ing. Therefore, the wiping pad 17 is reduced in diameter for contacting the tapered surface with the holder 16 and is in contact with the outer peripheral surface of the driven side 9b of the speed governor rope 9.

When the driven side 9b of the governor rope 9 starts downward traveling movement from this state, the traveling direction of the driven side 9b of the governor rope 9 and the self-weighting direction of the wiping pad 17 coincide with each other. .. As the driven side 9b of the governor rope 9 travels downward, the wiping pad 17 is pulled further downward due to the frictional force between the wiping pad 17 and the governor rope 9. Therefore, the wiping pad 17 is further reduced in diameter due to the tapered surface contact with the holder 16, and the wiping pad 17 is attached to the driven side 9b of the speed governor rope 9 in order to grip the speed governor rope 9 with a gripping force based on the reduced diameter. The outer peripheral surface is pressed firmly.

At this time, since the downward traveling moving force of the speed governor rope 9 itself is remarkably larger than the gripping force exerted on the speed governor rope 9 by the wiping pad 17, the speed governor rope 9 has an inner circumference of the wiping pad 17. It will continue to move downward while sliding relatively strongly on the surface. With the sliding operation of the wiping pad 17 and the speed governor rope 9 traveling downward, the speed governor rope 9 receives the squeezing force of the wiping pad 17, and the outer peripheral surface of the driven side 9b of the speed governor rope 9. The oil and the like adhering to is wiped off by the wiping pad 17 in a form of being scraped off. As a result, the oil and the like wiped from the driven side 9b of the speed governor rope 9 accumulates on the upper surface of the wiping pad 17 as indicated by the symbol Q in FIG.

In particular, the speed governor rope 9 traveling downward is constantly subjected to the gripping force based on the diameter reduction of the wiping pad 17, so that even the oil content pre-impregnated in the speed governor rope 9 should be squeezed out. It will be wiped off and the oil can be removed efficiently.

On the other hand, when the speed governor rope 9 travels upward, as shown in FIG. 6, with respect to the wiping pad 17 that tries to maintain the tapered surface contact with the inner peripheral surface of the holder 16 by its own weight, Due to the frictional force between the wiping pad 17 and the speed governor rope 9 traveling upward, the wiping pad 17 is pulled up so as to be dragged by the speed governor rope 9. As a result, the wiping pad 17 is expanded in diameter, and the gripping force on the governor rope 9 due to the tapered surface contact with the holder 16 is released, so that the upward traveling movement of the governor rope 9 can be smoothly permitted. Become. Therefore, when the governor rope 9 travels upward, the wiping pad 17 does not actively wipe off oil or the like.

The behavior when the driven side 9b of the governor rope 9 travels downward as described above and the behavior when the driven side 9b of the speed governor rope 9 travels upward as shown in FIG. The three wiping units 13A to 13C shown in FIG.

In particular, of the three wiping units 13A to 13C, the relative moving speed between the speed governor rope 9 and the wiping pad 17 in the central wiping unit 13C is the same as that in the other two wiping units 13A and 13B. As described above, the speed is the double speed of the relative movement speed between the wiper pad 9 and the wiping pad 17. Therefore, it is possible to more efficiently remove oil and the like by changing the relative moving speed among the three wiping units 13A to 13C.

In addition, each of the wiping units 13A to 13C exhibits the cleaning function only when the driven side 9b of the speed governor rope 9 travels downward, and when the driven side 9b of the speed governor rope 9 travels upward. Has a structure that does not exhibit the cleaning function. Therefore, even if the speed governor rope 9 is used in the wrong direction, excessive upward pulling force does not act on the drive side 9a of the speed governor rope 9, which in turn causes the emergency stop device to malfunction. It will not be activated.

Here, as shown in FIG. 4, in each of the wiping units 13A to 13C, two holders 16 are formed by a set of half covers 18 having a half-divided structure, and a wiping pad 17 is divided into three parts. As described above, it is formed by the aggregate of the divided pieces 17a.

Therefore, as shown in FIG. 1, in order to insert the existing speed governor rope 9 wound between the speed governor 4 and the tension applying device 5 into the respective wiping units 13A to 13C, the base plate 15 4 is fixed to a predetermined position of the hoistway, and on the base plate 15 so as to surround the driven side 9b of the speed governor rope 9, the pair of half covers 18 shown in FIG. Fasten and assemble the holder 16.

After that, the three divided pieces 17a which are the constituent elements of the wiping pad 17 are inserted from the upper surface side of the holder 16 and arranged so as to surround the driven side 9b of the speed governor rope 9. By doing so, it is possible to easily install the wiping units 13A to 13C on the driven side 9b of the existing speed governor rope 9 which is wound in advance.

In this case, the base plate 15 may be permanently provided if there is no particular problem in the hoistway. When the base plate 15 is fixed at a predetermined position in the hoistway prior to the assembly of the holder 16, the base plate 15 has an elongated hole-like hole that allows the driven side 9b of the speed governor rope 9 to pass therethrough. It is desirable that the slit is opened so as to face one of the four sides.

Further, as described above, when the driven side 9b of the speed governor rope 9 moves downward, the holder 16 is pressed against the base plate 15 while the holder 16 and the wiping pad 17 are centered. When the driven side 9b of the speed governor rope 9 moves upward, the wiping pad 17 is dragged by the speed governor rope 9 and lifts up from the holder 16 to move upward, but the wiping pad 17 moves inside the holder 16 due to its own weight. Will be returned to. For this reason, the holder 16 including the wiping pad 17 need only be placed on the base plate 15 by its own weight, but the holder 16 is detachably fixed to the base plate 15 as necessary. You may do it.

Further, the inner peripheral surface of the wiping pad 17 is gradually worn by use, and the diameter of the rope insertion hole 22 in the central portion is expanded. However, as shown in FIG. With the machine rope 9 being held, continuous use is possible as long as a predetermined gap G is secured between the adjacent divided pieces 17a. On the other hand, as the inner peripheral surface of the wiping pad 17 is worn away, the gap G shown in FIG. 3 disappears, and as shown in FIG. 4A, the adjacent divided pieces 17a come into direct contact with each other at the minimum diameter reduction. When it becomes impossible to grip the governor rope 9 by contact, the wiping pad 17 is replaced.

As described above, according to the present embodiment, it is possible to efficiently wipe off oil and the like adhering to the speed governor rope 9 regardless of the degree of viscosity, and to remove it to the surroundings like a conventional wire brush type. It does not cause the scattering of oil, etc.

In the present embodiment, an example in which the three wiping units 13A to 13C are applied to the governor rope 9 has been shown, but it goes without saying that the wiping units 13A to 13C can also be applied to the main rope (main rope). Further, in the present embodiment, as shown in FIG. 1, three wiping units 13A to 13C are used together, but this is merely an example, and any one wiping unit alone or The intended purpose can be achieved even when any two wiping units are used together.

2... Basket 4... Speed governor 5... Tensioning device 9... Speed governor rope (wire rope)
9b... Driven side of speed governor rope 13A to 13C... Wiping unit 15... Base plate 16... Holder (outer cylinder member)
17... Wiping pad (sliding member)
17a... Divided piece 18... Half cover (cover member)
22... Rope insertion hole

Claims (8)

A rope cleaning device for an elevator, wherein a wiping unit surrounds a wire rope that travels in the vertical direction, and the wire rope is cleaned based on a relative sliding operation between the two.
The wiping unit is
An outer peripheral surface is formed in a taper shape so as to reduce its diameter downward, and a tubular sliding member capable of contracting and expanding the diameter, into which a wire rope is inserted in the central portion,
An outer cylinder member that accommodates the sliding member and makes a taper contact with the outer peripheral surface of the sliding member;
Is equipped with
While performing a downward traveling movement of the wire rope, while exhibiting a cleaning function by sliding the sliding member while reducing the diameter and gripping the wire rope.
A rope cleaning device for an elevator, wherein when the wire rope is traveling upward, the diameter of the sliding member is allowed to be released so that the gripping force with respect to the wire rope is released. The elevator rope cleaning device according to claim 1, wherein the sliding member is formed by an assembly of a plurality of divided pieces that are divided in the circumferential direction and are independent of each other. The rope cleaning device for an elevator according to claim 2, wherein the sliding member is formed of an assembly of three or more divided pieces. The elevator rope cleaning device according to claim 2 or 3, wherein the outer cylinder member is formed by detachably connecting a plurality of cover members that are divided in the circumferential direction. The elevator rope cleaning device according to any one of claims 2 to 4, wherein an inner diameter of the sliding member at the minimum contraction is smaller than a diameter of the wire rope. The elevator rope cleaning device according to any one of claims 1 to 5, wherein at least two wiping units are arranged on the same axis of the traveling movement path of the wire rope. 7. The wiping unit is a movable type that moves in the traveling direction of the wire rope in conjunction with the traveling movement of the wire rope, and the remaining wiping units are fixed position fixed types. The elevator rope cleaning device described. 8. The elevator rope cleaning device according to claim 1, wherein the wire rope is a speed governor rope.

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