JP2018188283A - Sheave cleaning jig for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheave cleaning jig for an elevator capable of preventing the separation of a cleaning part for scraping dust and oil from a sheave even if a large amount of dust and oil is attached to the sheave.SOLUTION: An elevator sheave cleaning jig 10 includes an engagement part 11, a cleaning part 12, and a supporting part 13. The engagement part 11 is detachably engaged with a rope guard 176 and interposed between a protrusion 174 and the rope guard 176. The cleaning part 12 protrudes from the engagement part 11 and abuts on the protrusion 174. The supporting part 13 protrudes from a side of the engagement part 11 opposite to the cleaning part 12 and abuts on the protrusion 174.SELECTED DRAWING: Figure 5

Description

  The present invention relates to an elevator sheave cleaning jig used for cleaning a sheave around which a rope such as a main rope and a compen- sion rope provided in an elevator is wound.

  In general, a rope-type elevator is composed of a main rope and a compen- sion rope for connecting a car, a counterweight, and a car and a counterweight, a hoisting machine around which the main rope is wound, and a compen- sion rope. Compensation pulley that is turned.

  Oil is applied to ropes such as main ropes and compen- sion ropes to prevent wear and rust. For this reason, oil applied to the rope is attached to the sheaves such as the hoisting machine and the compensation pulley around which the rope such as the main rope and the compen- sion rope is wound together with dust such as dust and dirt. This oil hardens like clay when mixed with dust. Therefore, it is necessary to periodically remove dust and hardened oil adhering to the sheave.

  As a technique for removing dust and hardened oil adhering to the surface of such a sheave, there is a technique as described in Patent Document 1, for example. This Patent Document 1 is formed in an L shape comprising an operating plate having a first tip side that scrapes off rope oil deposits accumulated on the rim surface, and a holding plate extending from the base end portion of the operating plate to one side. And a cleaning jig provided with a main body made of steel. The technique described in Patent Document 1 includes a first permanent magnet that is fixed to the back surface of the holding plate and fixes the holding plate to a machine base that supports the driving sheave by a magnetic attractive force.

JP 2011-37606 A

  However, in the technique described in Patent Document 1, if a large amount of dust or oil is attached to the sheave, the operation plate may be separated from the surface of the sheave by the dust or oil, and cleaning work may not be performed. there were.

  The purpose of this objective is to clean the elevator sheave that can prevent the cleaning section that scrapes off dust and oil from separating from the sheave even if a large amount of dust or oil adheres to the sheave. To provide a jig.

In order to solve the above problems and achieve the object, the elevator sheave cleaning jig is an elevator sheave cleaning jig for cleaning the sheave provided in the elevator. The elevator sheave cleaning jig includes an engaging portion, a cleaning portion, and a support portion.
The engaging portion is detachably engaged with a rope guard provided on a housing that rotatably supports the sheave, and is interposed between the projection of the sheave and the rope guard. The cleaning part protrudes from the engaging part and abuts the sheave on the sheave. A support part protrudes from the opposite side to the cleaning part in an engaging part, and contact | abuts the protrusion part of a sheave.

  According to the elevator sheave cleaning jig configured as described above, the cleaning unit can be prevented from separating from the sheave even if a large amount of dust or oil adheres to the sheave.

It is a schematic block diagram which shows the elevator which cleans with the sheave cleaning jig concerning the example of 1st Embodiment. It is a perspective view of a compensation pulley which shows a compensation pulley which is an example of a sheave performed with a sheave cleaning jig concerning a 1st embodiment. It is a perspective view which expands and shows the A section shown in FIG. It is a perspective view which shows the sheave cleaning jig concerning the example of 1st Embodiment. It is a side view which shows the sheave cleaning jig concerning the example of 1st Embodiment. The attachment method of the sheave cleaning jig concerning the 1st example of an embodiment is shown, and Drawing 6A is a side view and Drawing 6B is a front view. The attachment method of the sheave cleaning jig concerning the 1st example of an embodiment is shown, and Drawing 7A is a side view and Drawing 7B is a front view. FIG. 8A is a side view, and FIG. 8B is a front view, illustrating a method of attaching the sheave cleaning jig according to the first embodiment. It is a perspective view which shows the sheave cleaning jig concerning the example of 2nd Embodiment. It is a side view which shows the sheave cleaning jig concerning the example of 2nd Embodiment.

  Hereinafter, embodiments of the elevator sheave cleaning jig will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the common member in each figure.

1. First embodiment example 1-1. Configuration of Elevator First, an example of the configuration of an elevator that performs cleaning with an elevator sheave cleaning jig according to a first embodiment (hereinafter referred to as “this example”) will be described with reference to FIG. 1. .
FIG. 1 is a schematic configuration diagram illustrating a configuration example of the elevator according to the present example.

  As shown in FIG. 1, the elevator 1 is provided in a hoistway 110 formed in a building structure. The elevator 1 includes an elevator car 120 that moves up and down in the hoistway 110 and carries people and luggage, a main rope 130, a counterweight 140, and a hoisting machine 100. In addition, the elevator 1 includes a compensation rope 131, a warping wheel 150, and a compensation pulley 170. A machine room 160 is provided at the top of the hoistway 110, and a pit 161 is provided at the bottom of the hoistway 110.

  In the machine room 160, a hoisting machine 100 and a curling wheel 150 are arranged. A main rope 130 is wound around the hoisting machine 100. The upper end of the car 120 is connected to one end of the main rope 130, and the upper portion of the counterweight 140 is connected to the other end of the main rope 130. Then, when the hoisting machine 100 is driven, the car 120 and the counterweight 140 move up and down the hoistway. Further, in the vicinity of the hoisting machine 100, a warping wheel 150 on which the main rope 130 is mounted is provided.

  In addition, one end of a compen- sive rope 131 is connected to the lower portion of the car 120. The lower end of the counterweight 140 is connected to the other end of the compensation rope 131. The compen- sive rope 131 hangs from the lower part of the car 120 and the lower part of the counterweight 140 toward the pit 161 below in the ascending / descending direction of the hoistway.

  Compensation pulley 170 is arranged in pit 161. A compensation rope 131 is wound around the compensation pulley 170.

FIG. 2 is a perspective view showing the compensator pulley 170.
As shown in FIG. 2, the compensation pulley 170 has a sheave 171 formed in a substantially columnar shape, and a housing 172 that rotatably supports the sheave 171. On the side surface of the sheave 171, a plurality of grooves 173 around which the compen rope 131 is wound are formed. A protrusion 174 is formed between two adjacent grooves 173 and 173 in the plurality of grooves 173.

  The housing 172 includes two support plates 175 and 175 and two substantially cylindrical rope guards 176. The housing 172 is supported by a support member (not shown) so as to be movable in the up and down direction. And as shown in FIG. 1, the housing | casing 172 is arrange | positioned at predetermined intervals from the floor surface 161a of the pit 161. FIG.

  The two support plates 175 and 175 are opposed to each other with the sheave 171 interposed therebetween. The two support plates 175 and 175 are provided with a rotating shaft 178 that rotatably supports the sheave 171. The rope guard 176 is provided so as to connect the two support plates 175 and 175. The rope guard 176 is disposed close to the side surface of the sheave 171. The rope guard 176 prevents the compensation rope 131 from coming off from the groove 173.

  The sheave cleaning jig 10 is used to remove the dirt on the protrusion 174 of the sheave 171 in the compensator pulley 170. The sheave cleaning jig 10 is detachably attached to the rope guard 176.

1-2. Configuration Example of Sheave Cleaning Jig Next, the configuration of the sheave cleaning jig 10 will be described with reference to FIGS.
FIG. 3 is an enlarged perspective view showing a portion A shown in FIG. 2, and FIG. 4 is a perspective view showing the sheave cleaning jig 10. FIG. 5 is a side view showing the sheave cleaning jig 10.

  As shown in FIGS. 3 to 5, the sheave cleaning jig 10 removes dust and adhered oil (hereinafter referred to as “deposit”) attached to the engaging portion 11 and the protrusion 174 of the sheave 171. The cleaning part 12 to perform and the support part 13 are provided. Further, the sheave cleaning jig 10 is formed of an elastic member such as plastic, polycarbonate, aluminum alloy, or leaf spring.

  The engaging part 11 is detachably engaged with the rope guard 176. The engaging portion 11 is formed in a cylindrical shape with a part cut away. The engaging part 11 has a first engaging piece 21 and a second engaging piece 22. The first engagement piece 21 and the second engagement piece 22 are curved along the curvature of the rope guard 176, respectively. A second engagement piece 22 is formed continuously from the base end portion of the first engagement piece 21.

  The thickness t2 of the second engagement piece 22 is set to be shorter than the interval t1 (see FIG. 6) between the rope guard 176 and the protrusion 174 of the sheave 171. When the sheave cleaning jig 10 is attached to the rope guard 176 and the sheave 171 is cleaned, the second engagement piece 22 is interposed between the rope guard 176 and the protrusion 174 of the sheave 171.

  The thickness of the sheave cleaning jig 10 other than the second engagement piece 22 is not affected by the distance t1 between the rope guard 176 and the protrusion 174.

  Further, the distal end portion 21a opposite to the proximal end portion in the first engagement piece 21 and the distal end portion 22a opposite to the proximal end portion continuous with the first engagement piece 21 in the second engagement piece 22 are provided. There is an opening 23 between them. The engaging portion 11 is engaged with the rope guard 176 by fitting the engaging portion 11 into the rope guard 176 from the opening 23.

  The cleaning portion 12 protrudes from a place where the first engagement piece 21 and the second engagement piece 22 are connected, that is, from the base end portion of the first engagement piece 21 and the base end portion of the second engagement piece 22. . The cleaning part 12 protrudes toward the opposite side of the opening part 23 in the engaging part 11. Further, the support portion 13 is provided continuously from the distal end portion 22 a of the second engagement piece 22 in the engagement portion 11.

  The cleaning unit 12 includes a cleaning plate 26 and two guide plates 27 and 27. The cleaning plate 26 is formed in a substantially flat plate shape. The width h1 of the cleaning plate 26 is set to be approximately equal to the length of the protrusion 174 of the sheave 171 in the width direction. Further, when the engaging portion 11 is engaged with the rope guard 176 and the second engaging piece 22 is directed toward the sheave 171, the cleaning plate 26 is connected to the engaging portion 11 from the connecting portion with the second engaging piece. It inclines toward the direction which approaches the sheave 171 side rather than 22.

  The cleaning plate 26 is provided with a first inclined surface portion 28 and a second inclined surface portion 29. The first inclined surface portion 28 is provided continuously from the base end portion of the first engagement piece 21. In addition, the 1st inclined surface part 28 inclines so that the extension line may be located in the 1st engagement piece 21 side rather than the center of the radial direction of the engaging part 11. FIG.

  Thereby, the deposit scraped off by the cleaning part 12 passes through the first inclined surface part 28 and the first engaging piece 21 of the engaging part 11 and is discharged toward the outside of the rope guard 176. As a result, the deposit scraped off by the cleaning unit 12 can be prevented from adhering to the sheave 171 again.

  The inclination angle of the second inclined surface portion 29 is formed smaller than the inclination angle of the first inclined surface portion 28. When the sheave cleaning jig 10 is attached to the rope guard 176, the tip 29a of the second inclined surface 29 opposite to the first inclined surface 28 comes into contact with the surface of the protrusion 174 of the sheave 171.

  As described above, since the inclination angle of the second inclined surface portion 29 is formed smaller than the inclination angle of the first inclined surface portion 28, the second inclined surface portion 29 can be made closer to the horizontal with respect to the surface of the protrusion 174. . Thereby, when the deposit is scraped off by the cleaning unit 12, a load applied to the cleaning plate 26 from the deposit can be reduced.

  In addition, the cleaning plate 26 is formed so that its thickness becomes thinner from the first inclined surface portion 28 toward the tip end portion 29 a of the second inclined surface portion 29. Thereby, the removal efficiency of the deposit by the cleaning board 26 can be improved. The thickness of the cleaning plate 26 may be uniformly formed from the first inclined surface portion 28 to the tip end portion 29 a of the second inclined surface portion 29.

  Furthermore, although the example which provided the 1st inclined surface part 28 and the 2nd inclined surface part 29 in the cleaning board 26 was demonstrated, it is not limited to this. For example, the cleaning plate 26 may be uniformly inclined, or the cleaning plate 26 may be formed in an arc shape.

  Moreover, although the example which formed the cleaning board 26 in substantially flat form and formed the front-end | tip part 29a in substantially linear form was demonstrated, it is not limited to this. For example, a V-shaped cut or protrusion may be provided on the tip portion 29a.

  Furthermore, as shown in FIG. 4, a mark 30 indicating the rotation direction of the sheave 171 may be provided on the first inclined surface portion 28 or the second inclined surface portion 29 of the cleaning plate 26. Thereby, when the sheave cleaning jig 10 is attached, the user can be notified of the direction in which the sheave 171 is rotated.

  The two guide plates 27 and 27 are provided substantially vertically from both ends of the cleaning plate 26 in the width direction. In addition, the two guide plates 27 are formed with a low protruding height from the cleaning plate 26 at the neck portion 12a which is a connection portion of the cleaning portion 12 with the engaging portion 11. The two guide plates 27 and 27 guide the deposit removed by the cleaning plate 26 toward the first engagement piece 21 side of the engagement portion 11. The two guide plates 27 and 27 can prevent the deposits removed by the cleaning plate 26 from scattering.

  The support portion 13 protrudes from the engagement portion 11 in the same direction as the opening direction of the opening portion 23 of the engagement portion 11. Therefore, the support part 13 protrudes from the engagement part 11 in the opposite direction to the cleaning part 12. Further, when the engaging portion 11 is engaged with the rope guard 176 and the second engaging piece 22 is directed toward the sheave 171, the support portion 13 is connected to the engaging portion 11 in the same manner as the cleaning plate 26. It is inclined downward from the location in the vertical direction with respect to the second engagement piece 22.

  When the sheave cleaning jig 10 is attached to the rope guard 176, the support portion 13 comes into contact with the protrusion 174 of the sheave 171. As shown in FIG. 5, the radius of curvature of the virtual circle Q1 that connects the distal end portion 29a of the cleaning plate 26 in the cleaning portion 12 and the distal end portion 13a on the opposite side of the engaging portion 11 in the support portion 13 is The radius of curvature of the protrusion 174 is set to be smaller.

  The support part 13 is formed in a flat plate shape. Further, notches 31 and 31 are formed at both ends of the support portion 13 in the width direction. Therefore, the width direction length h2 of the support portion 13 is set to be shorter than the width direction length h1 of the cleaning plate 26 in the cleaning portion 12 and the width direction length h3 of the groove portion 173 of the sheave 171. . Furthermore, the support part 13 is formed thicker than the thickness of the cleaning part 26 of the engaging part 11 and the cleaning part 12 which are other parts.

  Moreover, the cleaning part 12 and the support part 13 of the sheave cleaning jig 10 are made of a softer material than the sheave 171. Thereby, it is possible to prevent the protrusion 174 of the sheave 171 from being damaged by the cleaning portion 12 and the support portion 13 that are in sliding contact with the sheave 171 during the cleaning operation.

  In the above-described example, an example in which the sheave cleaning jig 10 is formed is described. However, the sheave cleaning jig 10 does not have to have elasticity. It is only necessary that at least the neck 12a, which is a place where the engaging portion 11 and the cleaning portion 12 are connected, and the first engaging piece 21 and the second engaging piece 22 of the engaging portion 11 have elasticity.

  The sheave cleaning jig 10 is preferably colored in a different color from the sheave 171 that performs cleaning, for example, yellow. Thereby, when the sheave cleaning jig 10 is attached to the sheave 171, the sheave cleaning jig 10 can be made conspicuous with respect to the sheave 171. As a result, it is possible to suppress forgetting to remove the sheave cleaning jig 10 from the sheave 171 after cleaning.

1-3. Cleaning Work Using Sheave Cleaning Jig Next, an example of the cleaning work using the sheave cleaning jig 10 having the above-described configuration will be described with reference to FIGS. 5 and 6A to 8B.
6A to 8B are explanatory views showing a method for attaching the sheave cleaning jig 10.

  First, as shown in FIGS. 6A and 6B, the support portion 13 is inserted into the groove portion 173 with the cleaning portion 12 facing away from the groove portion 173 of the sheave 171. Then, the opening 23 of the engaging part 11 is inserted into the rope guard 176 from the opening 23 of the engaging part 11, and the engaging part 11 is engaged with the rope guard 176. Here, since the length h2 in the width direction of the support portion 13 is set to be shorter than the length h3 in the width direction of the groove portion 173, the support portion 13 can be prevented from interfering with the wall surface of the groove portion 173. . Thereby, the engaging part 11 can be easily engaged with the rope guard 176.

  Next, as shown in FIGS. 7A and 7B, the sheave cleaning jig 10 is rotated around the rope guard 176 so that the cleaning unit 12 approaches the groove 173. And the rotation of the sheave cleaning jig 10 is stopped at a position where the cleaning plate 26 of the cleaning section 12 is substantially parallel to the surface of the protrusion 174 of the sheave 171.

  Next, the cleaning unit 12 and the support unit 13 are elastically deformed in a direction away from the sheave 171 against the elastic force. Here, in the neck part 12a in the cleaning part 12, the protrusion height of the guide plates 27 and 27 is formed low. Therefore, it can suppress that the guide plates 27 and 27 prevent the elastic deformation of the cleaning part 12, and the cleaning part 12 can be changed easily. By deforming the cleaning part 12 and the support part 13 against the elastic force, restoring forces F1 and F2 are generated in the cleaning part 12 and the support part 13 as shown in FIG.

  In a state where the cleaning unit 12 and the support unit 13 are deformed, the sheave cleaning jig 10 is slid along the axial direction of the rope guard 176 so that the second engagement piece 22 of the engagement unit 11 is moved to the rope guard 176. And the protrusion 174. Thereby, as shown to FIG. 8A and 8B, the cleaning part 12 and the support part 13 oppose the protrusion 174 of the sheave 171. FIG.

  And the deformation | transformation state of the cleaning part 12 and the support part 13 is cancelled | released. Here, as described above, the radius of curvature of the virtual circle Q1 connecting the tip end portion 29a of the cleaning plate 26 in the cleaning portion 12 and the tip end portion 13a of the support portion 13 opposite to the engaging portion 11 is the sheave 171. Is set smaller than the radius of curvature of the protrusion 174. Therefore, the cleaning part 12 and the support part 13 contact | abut to the protrusion 174 in the state deform | transformed from the original state. As a result, the cleaning unit 12 and the support unit 13 are urged toward the protrusion 174 by the restoring forces F1 and F2.

  Further, when the cleaning portion 12 and the support portion 13 press the protrusion 174 with the restoring forces F1 and F2, a repulsive force F3 is generated toward the rope guard 176 in the second engagement piece 22 of the engagement portion 11. To do. Due to the repulsive force F3, a drag force F4 is generated in the rope guard 176 toward the engaging portion 11. As a result, the engaging portion 11 is clamped by the repulsive force F3 and the drag force F4, so that the sheave cleaning jig 10 can be fixed to the sheave 171 without using a fixing jig.

  Here, in the conventional cleaning jig as shown in Patent Document 1, a base for placing the holding plate is necessary to install the cleaning jig. Therefore, when the distance between the base and the sheave is long, it is difficult to install a cleaning jig. Furthermore, it is necessary to adjust the height of the working plate in order to scrape the deposit by bringing the working plate that scrapes the deposit into contact with the sheave, and the work of installing the cleaning jig is very complicated. It was.

  On the other hand, in the sheave cleaning jig 10 of this example, the sheave cleaning jig 10 can be easily installed in the sheave 171 by being engaged with the rope guard 176. Further, since a foundation for placing the sheave cleaning jig 10 is not required, as shown in FIG. 1, the sheave cleaning process can be easily performed on the compensator 170 installed away from the floor surface 161a. The tool 10 can be installed.

  Next, the user drives the hoisting machine 100 so that the sheave 171 rotates in the direction of the mark 30 provided on the sheave cleaning jig 10. Thereby, the cleaning unit 12 is located upstream of the engagement unit 11 and the support unit 13 in the rotational direction of the sheave 171. And the deposit adhering to the protrusion 174 is scraped off by the cleaning plate 26 of the cleaning unit 12.

  Here, when the cleaning plate 26 receives a force in a direction away from the protrusion 174 due to the deposit, a force is generated in a direction approaching the protrusion 174 in the support portion 13 protruding from the opposite side to the cleaning portion 12. To do. Then, since a repulsive force is generated in the support portion 13 in a direction away from the protrusion 174, a force is generated in the cleaning portion 12 in a direction approaching the protrusion 174 due to the repulsive force generated in the support portion 13. .

  As a result, the cleaning plate 26 of the cleaning unit 12 can be prevented from separating from the protrusion 174 even if a large amount of deposits are attached to the sheave 171. Furthermore, since the cleaning part 12 is urged | biased toward the protrusion 174 by the restoring force F1, it can prevent that the cleaning plate 26 leaves | separates from the protrusion 174 also by the restoring force F1.

  Moreover, since the cleaning part 12 protrudes toward the opposite side to the opening part 23 in the engaging part 11, the opening part 23 of the engaging part 11 faces the downstream side in the rotational direction of the sheave 171. As a result, it is possible to prevent the engagement between the engaging portion 11 and the rope guard 176 from being released due to the rotation of the sheave 171.

  Furthermore, when the cleaning unit 12 rotates the sheave 171 in a direction that is on the downstream side in the rotation direction of the sheave 171, the opening 23 faces the upstream side in the rotation direction. Therefore, the engagement between the engaging portion 11 and the rope guard 176 is released by the rotation of the sheave 171. Thereby, it is possible to prevent the cleaning work from being performed in a state where the direction of the sheave 171 in the rotation direction and the direction in which the sheave cleaning jig 10 is attached are incorrect.

  When the cleaning operation for one protrusion 174 is completed, the sheave cleaning jig 10 is moved along the rope guard 176 to a position facing the other protrusion 174. Then, when the cleaning work of all the protrusions 174 in the sheave 171 is completed, the sheave cleaning jig 10 is removed from the rope guard 176. Thereby, the cleaning work of the sheave 171 using the sheave cleaning jig 10 is completed.

  In addition, the sheave cleaning jig 10 of this example is set so that the length h1 in the width direction of the cleaning plate 26 of the cleaning unit 12 is substantially equal to the length of one protrusion 174. Thereby, the same sheave cleaning jig 10 can be used for sheaves having different numbers of protrusions 174 and different axial lengths of the sheaves. Further, by attaching the plurality of sheave cleaning jigs 10 to the compensator pulley 170, the plurality of protrusions 174 can be cleaned at the same time, and the efficiency of the cleaning operation can be increased.

2. Second Embodiment Next, a second embodiment will be described with reference to FIGS. 9 and 10.
FIG. 9 is a perspective view showing a sheave cleaning jig according to the second embodiment, and FIG. 10 is a side view showing the sheave cleaning jig according to the second embodiment.

  The difference between the sheave cleaning jig according to the second embodiment and the sheave cleaning jig 10 according to the first embodiment is that a collection unit is provided. Therefore, here, the same reference numerals are given to the portions common to the sheave cleaning jig according to the first embodiment, and a duplicate description is omitted.

  As shown in FIGS. 9 and 10, the sheave cleaning jig 50 according to the second embodiment has an engaging part 51, a cleaning part 52, a support part 53, and a recovery part 54. ing. In addition, since the engaging part 51, the cleaning part 52, and the support part 53 are the same as that of the sheave cleaning jig 50 concerning 1st Embodiment, the description is abbreviate | omitted.

  The collection unit 54 is provided on the guide plate 67 so as to cover the cleaning plate 66 in the cleaning unit 52. The collection unit 54 is formed in a container shape having an opening 54 a on the distal end side of the cleaning unit 52. The collection unit 54 accommodates the deposit removed by the cleaning plate 66. Thereby, it is possible to prevent the deposits from being scattered around the sheave 171 and to easily collect the deposits.

  In addition, the collection unit 54 is provided so as to avoid the neck portion 52 a that is a connection portion with the engagement unit 51 in the cleaning unit 52. Thereby, when elastically deforming the cleaning part 52, it can prevent that the collection | recovery part 54 becomes the obstruction.

  Moreover, although the example which formed the collection | recovery part 54 integrally with the cleaning part 52 was demonstrated, it is not limited to this, You may attach the collection | recovery part 54 to the cleaning part 52 so that attachment or detachment is possible. Thereby, when engaging the engaging part 51 with the rope guard 176, or when deforming the cleaning part 52, it is possible to prevent the collecting part 54 from interfering with its operation.

  Since the other configuration is the same as that of the sheave cleaning jig 10 according to the first embodiment, the description thereof is omitted. Also with the sheave cleaning jig having such a configuration, it is possible to obtain the same operational effects as the sheave cleaning jig 10 according to the first embodiment described above.

  It should be noted that the present invention is not limited to the embodiment described above and shown in the drawings, and various modifications can be made without departing from the spirit of the invention described in the claims.

  Further, the sheave cleaning jig is not limited to the example of cleaning the sheave 171 of the compensator pulley 170, but sheaves used in various other elevators such as a sheave and a warp of the hoisting machine 100 in the elevator. It is used when cleaning.

  In the above-described embodiment, the example in which the shape of the engaging portion 11 is formed in a substantially cylindrical shape with a part of the opening 23 is described. However, the present invention is not limited to this. The shape may be any shape that can be engaged with the rope guard 176.

  In this specification, words such as “parallel” and “orthogonal” are used, but these do not mean only strict “parallel” and “orthogonal”, but include “parallel” and “orthogonal”. Further, it may be in a state of “substantially parallel” or “substantially orthogonal” within a range where the function can be exhibited.

  DESCRIPTION OF SYMBOLS 1 ... Elevator 10, 50 ... Sheave cleaning jig 11, 51 ... Engagement part 12, 52 ... Cleaning part, 12a, 52a ... Neck part 13, 53 ... Support part, 13a ... Tip part, 21 ... First DESCRIPTION OF SYMBOLS 1 engaging piece, 21a ... tip part, 22 ... 2nd engaging piece, 22a ... tip part, 23 ... opening part, 26 ... cleaning plate, 27 ... guide plate, 28 ... 1st inclined surface part, 29 ... 2nd inclination Face part, 29a ... tip part, 30 ... mark, 31 ... notch part, 54 ... recovery part, 54a ... opening part, 100 ... hoisting machine, 110 ... hoistway, 120 ... car, 130 ... main rope, 131 ... compensator Rope, 140 ... counterweight, 150 ... warping wheel, 160 ... machine room, 161 ... pit, 161a ... floor, 170 ... compen pulley, 171 ... sheave, 172 ... housing, 173 ... groove, 174 ... protrusion Part, 175 ... support plate, 176 ... rope guard, F1, F2 ... restoring force, F3 ... repulsive force, F4 ... drag force, Q1 ... virtual circle

Claims (9)

An elevator sheave cleaning jig for cleaning a sheave provided in the elevator,
An engagement portion that is detachably engaged with a rope guard provided on a casing that rotatably supports the sheave, and is interposed between the protrusion of the sheave and the rope guard,
A cleaning part that protrudes from the engagement part and abuts against the protrusion on the sheave;
A support portion that protrudes from the opposite side of the engagement portion to the cleaning portion and abuts against the protrusion of the sheave;
Elevator sheave cleaning jig equipped with. The elevator according to claim 1, wherein when the engaging portion is engaged with the rope guard, the cleaning portion and the support portion are inclined from the engaging portion toward the sheave. Sheave cleaning jig. The radius of curvature of a virtual circle connecting the tip of the cleaning portion opposite to the engagement portion and the tip of the support portion opposite to the engagement portion is the curvature of the protrusion of the sheave. The elevator sheave cleaning jig according to claim 2, wherein the jig is set smaller than the radius. The elevator sheave cleaning jig according to claim 1, wherein at least a connection portion between the cleaning portion and the engagement portion has elasticity. The elevator sheave cleaning jig according to claim 1, wherein a length in the width direction of the support portion is set to be shorter than a length in a width direction of a groove portion formed between the protrusions in the sheave. The engaging portion has an opening into which the rope guard is inserted,
The elevator sheave cleaning jig according to claim 1, wherein the cleaning portion protrudes from a side opposite to the side of the engagement portion where the opening is provided. The elevator sheave cleaning jig according to claim 1, wherein a length of the cleaning portion in the width direction is set to be equal to a length of the protrusion in the width direction. The cleaning unit includes a cleaning plate that contacts the protrusion,
The elevator sheave cleaning jig according to claim 1, further comprising a guide plate protruding from both sides of the cleaning plate in the width direction. The elevator sheave cleaning jig according to claim 1, wherein the cleaning unit is provided with a recovery unit that recovers the removed deposit.