JP6809545B2 - Elevator tension car cleaning device - Google Patents

Description

The present invention relates to a cleaning device for an elevator tension wheel.

Patent Document 1 discloses an example of a sheave cleaning device for an elevator hoisting machine. The cleaning device is attached to the base below the sheave of the hoist.

Jikkenhei 5-42275

The tension wheel around which the speed governor rope of the elevator is wound is displaced in the vertical direction as the elevator operates. However, when the cleaning device of Patent Document 1 is attached below the tension wheel, the cleaning device does not follow the vertical displacement of the tension wheel. Therefore, the cleaning device cannot be applied to cleaning a tension wheel.

An object of the present invention is to provide a cleaning device applicable to an elevator tension wheel.

The elevator tensioning vehicle cleaning device according to the present invention has a sheave and a frame for accommodating the sheave in which the speed governor rope of the elevator is wound around a groove on the circumference from both the left and right sides, and is in the vertical direction as the elevator is operated. In a tension wheel that is displaced to, a contact portion that contacts the inner surface of the groove from above, a support arm that supports the contact portion at one end to prevent the contact portion from moving in the circumferential direction of the sheave, and a support arm of the support arm. It is provided at the other end and has a mounting part that is attached to the frame by sandwiching the outer surface from the outside on the left or right side of the frame, and covers the part of the speed governor rope that is pulled out upward when the elevator car rises. When the frame includes a rope guide, the attachment portion is attached to the frame by sandwiching the outer surface of the rope guide from the outside.
The cleaning device for an elevator tension wheel according to the present invention has a sheave in which the speed controller rope of the elevator is wound around a groove on the circumference from both the left and right sides, and a frame for accommodating the sheave. In a tension wheel that is displaced to, a contact portion that contacts the inner surface of the groove from above, a support arm that supports the contact portion at one end to prevent the contact portion from moving in the circumferential direction of the sheave, and a support arm of the support arm. A mounting portion provided at the other end and mounted on the frame by sandwiching the outer surface from the outside on the left or right side of the frame is provided, and the mounting portion is provided with the tips in the respective axial directions directed toward the outer surface of the frame from different directions. It is provided with a plurality of adjusting portions whose tip positions in the axial direction are variable, and is attached to the frame by contacting the tips of the plurality of adjusting portions with the outer surface of the frame.

According to the present invention, the cleaning device includes a contact portion, a support arm, and a mounting portion. The tension wheel has a sheave and a frame. The elevator rope is wrapped around a groove on the circumference of the sheave. The frame houses the sheave. The tension wheel is displaced in the vertical direction as the elevator is operated. The contact portion contacts the inner surface of the groove from above. By supporting the contact portion at one end, the support arm suppresses the movement of the contact portion in the circumferential direction of the sheave due to the rotation of the sheave. The attachment portion is provided at the other end of the support arm. The mounting portion is mounted on the frame by sandwiching the outer surface of the frame from the outside. As a result, the cleaning device can be applied to an elevator tension wheel.

It is a block diagram of the elevator which concerns on Embodiment 1. FIG. It is a perspective view of the tension wheel which concerns on Embodiment 1. FIG. It is a top view of the cleaning device which concerns on Embodiment 1. FIG. It is a front view of the cleaning device which concerns on Embodiment 1. FIG. It is a right side view of the cleaning apparatus which concerns on Embodiment 1. FIG. It is a perspective view of the tension wheel to which the cleaning device which concerns on Embodiment 1 is attached. It is a front view of the cleaning device which concerns on Embodiment 2. FIG.

A mode for carrying out the present invention will be described with reference to the accompanying drawings. In each figure, the same or corresponding parts are designated by the same reference numerals, and duplicate description will be appropriately simplified or omitted.

Embodiment 1.
FIG. 1 is a configuration diagram of an elevator according to the first embodiment.

The elevator 1 is provided in the building 2. Building 2 includes a plurality of floors. In the elevator 1, the hoistway 3 penetrates each of the plurality of floors of the building 2. In the elevator 1, each of the plurality of landings 4 is provided on each of the plurality of floors of the building 2. In the elevator 1, the machine room 5 is provided above the hoistway 3. In the elevator 1, the pit 6 is provided at the lower end of the hoistway 3.

The elevator 1 includes a hoisting machine 7, a main rope 8, a car 9, and a balance weight 10. The hoisting machine 7 is provided in, for example, the machine room 5. The hoisting machine 7 includes a motor and a sheave. The motor of the hoisting machine 7 is a device that generates a driving force. The sheave of the hoisting machine 7 is a device that rotates by a driving force generated by a motor. The main rope 8 is wound around the sheave of the hoisting machine 7. The main rope 8 is a member that moves following the rotation of the sheave of the hoisting machine 7. One end of the main rope 8 is provided in, for example, a car 9. The other end of the main rope 8 is provided on, for example, the balance weight 10. The car 9 is a device for transporting a user or the like between a plurality of floors of the building 2 by traveling in the vertical direction inside the hoistway 3 following the movement of the main rope 8. The car 9 includes a car door 11. The car door 11 is a device that opens and closes when the car 9 is stopped on any of a plurality of floors so that a user or the like can get on and off the car 9. The balance weight 10 is provided in the hoistway 3. The counterweight 10 is a device that balances the load applied to both sides of the sheave of the hoisting machine 7 with the car 9 through the main rope 8.

The elevator 1 includes a plurality of landing doors 12. Each of the plurality of landing doors 12 is provided in each of the plurality of landings 4. Each of the plurality of landing doors 12 is a device that opens and closes in conjunction with the car door 11 when the car 9 is stopped on the floor where the landing door 12 is provided.

The elevator 1 includes a governor 13, a governor rope 14, and a tension wheel 15. The governor 13 is provided in, for example, the machine room 5. The speed governor 13 is a device that limits the speed of the car 9 so that the car 9 does not run at an excessive speed. The governor 13 includes a sheave. The governor rope 14 is wound around the sheave of the governor 13. Both ends of the governor rope 14 are attached to, for example, a car 9.

The tension wheel 15 is provided, for example, in the pit 6. In the pit 6, a pair of tension wheel guide rails 16 are provided. The tension wheel 15 is provided between the pair of tension wheel guide rails 16. The tension wheel 15 is a device that applies tension to the governor rope 14. The tension wheel 15 includes a sheave 17 and a frame 18. The sheave 17 is a device around which the governor rope 14 is wound so that tension can be applied to the governor rope 14. In this example, the axis of rotation of the sheave 17 is oriented in the anteroposterior direction. The tension wheel 15 is floated from the floor surface of the pit 6 by hanging the sheave 17 on the speed governor rope 14 between the pair of tension wheel guide rails 16. The frame 18 houses the sheave 17. The frame 18 includes a weight 19 and a guide shoe 20. The weight 19 is provided below the sheave 17. The weight 19 is a device that applies tension to the governor rope 14 via the sheave 17 by the weight of the weight 19. The guide shoes 20 are provided on both the left and right sides of the frame 18 so that the tension wheels 15 are displaced in the vertical direction along the pair of tension wheel guide rails 16.

In the normal operation of the elevator 1, the governor rope 14 moves in the vertical direction as the car 9 moves up and down. The sheave 17 of the governor 13 rotates as the governor rope 14 moves. When the rotation speed of the sheave 17 exceeds a preset rotation speed, the speed governor 13 limits the traveling speed of the car 9 by braking the rotation of the sheave 17. The sheave 17 rotates with the movement of the governor rope 14. The sheave 17 receives a vertical force from the speed governor rope 14 that moves in the vertical direction. Therefore, the tension wheel 15 is displaced in the vertical direction along the pair of tension wheel guide rails 16 as the car 9 moves up and down.

FIG. 2 is a perspective view of the tension wheel according to the first embodiment.
In FIG. 2, the rotation direction R of the sheave 17 when the car 9 is raised is shown.

The sheave 17 of the tension wheel 15 has a groove 21 on the outer circumference of the circle. The governor rope 14 is wound around the groove 21 of the sheave 17 from both the left and right sides.

The frame 18 of the tension wheel 15 includes a pair of rope guides 22 and an upper cover 23. Each of the pair of rope guides 22 is provided on both the left and right sides of the frame 18. One of the pair of rope guides 22 is provided parallel to the governor rope 14 drawn from the sheave 17. The other of the pair of rope guides 22 is provided parallel to the governor rope 14 wound around the sheave 17. The upper cover 23 is provided over the upper ends of each of the pair of rope guides 22. The upper cover 23 is provided above the sheave 17.

In this example, the left rope guide 22 covers the portion D of the governor rope 14 that is wound downward when the car 9 rises from the left side. The rope guide 22 on the right side covers the portion U of the governor rope 14 pulled upward when the car 9 rises from the right side.

Here, in the operation of the elevator 1, dust, dust, lubricating oil of the governor rope 14, and the like may adhere to the groove 21 of the sheave 17 as foreign matter. The foreign matter stuck to the groove 21 of the sheave 17 adheres to the governor rope 14. Foreign matter adhering to the governor rope 14 may be carried to the governor 13. At this time, foreign matter carried to the governor 13 may come into contact with the governor 13 to brake the speed of the car 9 in which the governor 13 is normally operating. Therefore, it is necessary to remove the foreign matter stuck to the groove 21 of the sheave 17. A worker who cleans the sheave 17 uses a cleaning device 24 (not shown in FIG. 2) to remove foreign matter stuck to the groove 21 of the sheave 17.

Subsequently, the configuration of the cleaning device 24 according to the first embodiment will be described with reference to FIGS. 3 to 5.
FIG. 3 is a top view of the cleaning device according to the first embodiment.

The cleaning device 24 includes a mounting portion 25, a support arm 26, and a contact portion 27. The mounting portion 25 is a U-shaped portion that opens to the left when viewed from above. The mounting portion 25 has mounting holes 28 on each of the three front, right and rear surfaces. The support arm 26 is a portion extending from the right side surface of the mounting portion 25 to the left side. The mounting portion 25 is provided on the front side of the cleaning device 24. The attachment portion 25 and the support arm 26 are formed by, for example, sheet metal processing. The contact portion 27 is provided on the right surface at the left end of the support arm 26. The contact portion 27 is detachably attached to the support arm 26 by, for example, screwing. The contact portion 27 is formed of a rubber member such as reinforced rubber.

The mounting portion 25 includes a plurality of adjusting portions 29. Each of the plurality of adjusting portions 29 includes a bolt 30 and a nut 31. The nut 31 is an example of a holding portion. The bolt 30 is passed through one of the plurality of mounting holes 28 of the mounting portion 25 with its tip facing inward. The tip of the bolt 30 is the tip of the adjusting portion 29. That is, each of the plurality of adjusting portions 29 is arranged so as to face different directions from each other. The axial position of the tip of the bolt 30 is variable by rotation. The nut 31 is provided at the tip of the bolt 30 inside the mounting portion 25.

FIG. 4 is a front view of the cleaning device according to the first embodiment.
In FIG. 4, a plurality of adjusting units 29 are not shown.

The support arm 26 extends upward from the right side surface of the mounting portion 25. The support arm 26 bends at a right angle to the left above the mounting portion 25. The support arm 26 is bent downward on the left side of the mounting portion 25. The support arm 26 bends downward at the left end.

FIG. 5 is a right side view of the cleaning device 24 according to the first embodiment.
FIG. 5 shows a state in which the contact portion 27 is removed from the tip of the support arm 26. In FIG. 5, a cross section of the sheave 17 including the axis of rotation is shown. In FIG. 5, a plurality of adjusting units 29 are not shown.

The groove 21 of the sheave 17 is provided so that the inner side surface opens outward at an angle θ1.

The contact portion 27 is formed so that the width in the front-rear direction becomes narrower from the upper side to the lower side. At this time, the portion of the lower end of the contact portion 27 that contacts the inner surface of the groove 21 is provided so as to open upward at an angle θ2. At this time, the angle θ2 is smaller than the angle θ1.

Subsequently, a method of cleaning the tension wheel 15 by the cleaning device 24 according to the first embodiment will be described with reference to FIG.
FIG. 6 is a perspective view of a tension wheel to which the cleaning device according to the first embodiment is attached.

In this example, the cleaning work is performed by two workers, a worker who operates the car 9 and a worker who removes foreign matter from the groove 21 of the sheave 17 in the pit 6.

First, the worker who operates the car 9 moves the car 9 to, for example, one floor above the lowest floor. As a result, a space for the worker to perform the cleaning work is secured in the pit 6.

After that, the worker who works in the pit 6 removes the upper cover 23 of the tension wheel 15.

After that, the worker attaches the cleaning device 24 to the frame 18 as follows, for example. Here, in FIG. 6, the tension wheel 15 in a state where the upper cover 23 is removed and the cleaning device 24 is attached is shown.

First, the worker installs the cleaning device 24 in the gap between the right rope guide 22 and the tension wheel guide rail 16 so that the right inner side surface of the cleaning device 24 faces the right outer surface of the right rope guide 22. Insert from above. Here, the rope guide 22 on the right side covers the portion U of the speed governor rope 14 that is pulled out upward when the car 9 rises from the right side.

Next, the worker inserts the contact portion 27 into the groove 21 of the sheave 17 from above. At this time, the worker brings the contact portion 27 into contact on the right side of the top T of the sheave 17. The worker adjusts the cleaning device 24 so that the contact portion 27 comes into contact with the groove 21 without a gap between the top T of the sheave 17 and the rope guide 22 on the right side. Here, the angle θ2 at which the lower end of the contact portion 27 opens upward is smaller than the angle θ1 at which the groove 21 opens outward. Since the contact portion 27 is inserted into the groove 21 from above, the contact portion 27 comes into contact with the groove 21 on the right side of the top T of the sheave 17 without a gap.

Next, the worker brings the tips of each of the plurality of adjusting portions 29 closer to the outer surface of the rope guide 22 on the right side by tightening the bolts 30 so that the cleaning device 24 is fixed at the adjusted position. The tips of the plurality of adjusting portions 29 come into contact with the outer surface of the rope guide 22 on the right side from different directions. The adjusting unit 29 sandwiches the outer surface of the rope guide 22 on the right side from the three directions of the front direction, the right direction, and the rear direction. The mounting portion 25 is mounted on the frame 18 by the adjusting portion 29 sandwiching the rope guide 22 on the right side. In this example, the mounting portion 25 is not in contact with the inner surface of the frame 18.

Next, the worker moves each nut 31 of the plurality of adjusting portions 29 to the tip until it comes into contact with the outer surface of the rope guide 22 on the right side. As described above, the worker attaches the cleaning device 24 to the frame 18.

After that, the worker in the pit 6 contacts the worker who drives the car 9. The worker who is contacted raises the car 9. The sheave 17 rotates as the car 9 rises. The support arm 26 supports the contact portion 27 inside the groove 21. Therefore, the contact portion 27 is prevented from moving in the circumferential direction of the sheave 17 as the sheave 17 rotates. On the other hand, the foreign matter stuck to the groove 21 moves in the circumferential direction of the sheave 17 as the sheave 17 rotates. Therefore, the foreign matter is dammed by the contact portion 27 and scraped out of the groove 21. Here, the worker who operates the car 9 raises the car 9 at a speed at which the worker in the pit 6 can visually confirm the scraping of the foreign matter by the contact portion 27.

The worker in the pit 6 contacts the worker who operates the car 9 when the scraped foreign matter accumulates on the surface of the contact portion 27. The worker who is contacted stops the ascending operation of the car 9. The worker in the pit 6 removes the cleaning device 24 from the frame 18. The worker wipes off the foreign matter accumulated in the contact portion 27. The worker reattaches the cleaning device 24 to the frame 18.

After that, the worker in the pit 6 contacts the worker who drives the car 9. The worker who is contacted resumes the ascending operation of the car 9. The two workers repeat the above procedure until the sheave 17 goes around.

As described above, the cleaning device 24 according to the first embodiment includes a contact portion 27, a support arm 26, and a mounting portion 25. The tension wheel 15 has a sheave 17 and a frame 18. The governor rope 14 of the elevator 1 is wound around a groove 21 on the circumference of the sheave 17. The frame 18 houses the sheave 17. The tension wheel 15 is displaced in the vertical direction as the elevator 1 is operated. The contact portion 27 comes into contact with the inner surface of the groove 21 from above. By supporting the contact portion 27 at one end, the support arm 26 suppresses the movement of the contact portion 27 in the circumferential direction of the sheave 17 due to the rotation of the sheave 17. The mounting portion 25 is provided at the other end of the support arm 26. The mounting portion 25 is mounted on the frame 18 by sandwiching the outer surface of the frame 18 from the outside.

The cleaning device 24 is attached to the frame 18 of the tension wheel 15. Therefore, the cleaning device 24 follows the vertical displacement of the tension wheel 15. That is, the contact portion 27 in contact with the groove 21 of the sheave 17 is displaced in the vertical direction together with the sheave 17. As a result, the cleaning device 24 can be applied to cleaning the sheave 17 of the tension wheel 15 of the elevator 1.

Here, when the foreign matter in the groove 21 of the sheave 17 is manually removed while the car 9 of the elevator 1 is stopped, the position of the sheave 17 is set a plurality of times so that the position of the sheave 17 to be cleaned is exposed upward. Need to be adjusted. For example, when two workers keep in touch and adjust the position of the sheave 17 by adjusting the position of the car 9, the worker who operates the car 9 cannot directly confirm the sheave 17. Therefore, it may be necessary to repeatedly move the car 9 in the vertical direction. On the other hand, the cleaning device 24 removes foreign matter from the groove 21 of the sheave 17 by rotating the sheave 17 as the car 9 of the elevator 1 moves. Since the cleaning device 24 continuously removes foreign matter by rotating the sheave 17, it is not necessary to adjust the position of the car 9 according to the position of the sheave 17 to be cleaned. Therefore, the foreign matter in the groove 21 of the sheave 17 is removed by operating the car 9 only for ascending operation and stopping. Therefore, the cleaning work of the tension wheel 15 becomes easy.

Further, in adjusting the position of the sheave 17 when removing foreign matter from the groove 21 of the sheave 17 while the car 9 of the elevator 1 is stopped, the speed governor rope 14 wound around the tension wheel 15 is loosened to rotate the sheave 17. May cause you to. At this time, it is necessary to bring a large device such as a jack for loosening the governor rope 14 into the pit 6. On the other hand, the cleaning device 24 is a small device that can be fixed on the rope guide 22. Therefore, it is not necessary to bring a large device into the pit 6. Therefore, the cleaning work of the tension wheel 15 becomes easy.

Further, the cleaning device 24 is attached from the outside of the frame 18. Therefore, when an abnormal force is applied to the cleaning device 24 due to catching in the cleaning work, the cleaning device 24 comes off to the outside of the frame 18. As a result, even when an abnormal force is applied to the cleaning device 24, the possibility of damaging the cleaning device 24 or the equipment of the elevator 1 is reduced.

Further, the frame 18 includes a rope guide 22. The rope guide 22 covers a portion U of the governor rope 14 that is pulled upward when the car 9 of the elevator 1 rises. In this case, the attachment portion 25 is attached to the frame 18 by sandwiching the outer surface of the rope guide 22 from the outside.

The worker performs cleaning work in the pit 6. Therefore, in the cleaning work, the car 9 is operated so as to rise away from the pit 6. At this time, the worker in the pit 6 works in the vicinity of the portion U of the governor rope 14 pulled out from the sheave 17. The worker does not need to approach the portion D of the governor rope 14 wound around the sheave 17. Therefore, the safety of the cleaning work is increased.

Further, the contact portion 27 contacts the inner surface of the groove 21 between the top T of the sheave 17 and the rope guide 22. The rope guide 22 covers a portion U of the governor rope 14 that is pulled upward when the car 9 of the elevator 1 rises.

As a result, the force received by the contact portion 27 due to the rotation of the sheave 17 acts in the direction in which the cleaning device 24 is released to the outside of the frame 18. As a result, even if an abnormal force is applied to the cleaning device 24, the possibility of damaging the cleaning device 24 or the equipment of the elevator 1 is further reduced.

Further, the angle θ2 of the portion of the lower end of the contact portion 27 that contacts the inner surface of the groove 21 is smaller than the angle θ1 of the inner surface of the groove 21 in the cross section including the rotation axis of the sheave 17.

The contact portion 27 is inserted into the groove 21 of the sheave 17 from above. Therefore, the shape of the contact portion 27 matches the shape of the inner surface of the groove 21 at a position deviated from the top portion T to the left and right. As a result, the contact portion 27 can more reliably remove the foreign matter at a position deviated from the top portion T to the left or right.

Further, the contact portion 27 is removable from the support arm 26.

As a result, the contact portion 27 having an appropriate shape can be replaced and used according to the diameter of the governor rope 14, the diameter of the sheave 17, the shape of the groove 21, and the like.

Further, the contact portion 27 is formed of a rubber member having rubber elasticity.

Due to the deformation due to rubber elasticity, the contact portion 27 comes into close contact with the inner surface of the groove 21. As a result, the contact portion 27 can more reliably remove the foreign matter. Further, since the contact portion 27 is deformed by the rubber elasticity, the sliding noise that may be generated by the friction with the sheave 17 can be reduced.

Further, the mounting portion 25 includes a plurality of adjusting portions 29. The axial tips of the plurality of adjusting portions 29 are directed toward the outer surface of the frame 18 from different directions. The axial position of the tip of each of the plurality of adjusting portions 29 is variable. The mounting portion 25 is mounted on the frame 18 by the tips of the plurality of adjusting portions 29 coming into contact with the outer surface of the frame 18.

The mounting portion 25 is mounted on the frame 18 by a force pushing the outer surface of the frame 18. Therefore, when an abnormal force is applied from the sheave 17 housed in the frame 18, the cleaning device 24 is likely to come off the frame 18. As a result, even if an abnormal force is applied to the cleaning device 24, the possibility of damaging the cleaning device 24 or the equipment of the elevator 1 is further reduced. In addition, the mounting position of the mounting portion 25 can be easily adjusted.

Further, each of the plurality of adjusting portions 29 is provided with a pressing portion at the tip. The pressing portion increases the contact area of the frame 18 with the outer surface.

As a result, the mounting portion 25 is mounted with a larger contact area. Therefore, in the normal state, the cleaning device 24 is more stably attached to the frame 18.

The contact portion 27 may be attached to the support arm 26 by adhesion or tape fastening. Further, the contact portion 27 may be formed integrally with the support arm 26. At this time, the contact portion 27 is formed of the same material as the support arm 26 such as a steel plate.

Further, the cleaning device 24 may be provided with a fall prevention unit. The fall prevention portion includes, for example, a string whose one end is tied to a mounting hole 28 or the like. The fall prevention portion includes a clip at the other end of the string. The clip is attached to, for example, a tension wheel guide rail 16. As a result, even when the cleaning device 24 is removed from the frame 18, the possibility that the cleaning device 24 will fall into the pit 6 and damage other equipment or the like is reduced.

Further, the support arm 26 and the attachment portion 25 may be separable from each other. At this time, the support arm 26 and the mounting portion 25 are assembled by, for example, screwing. The mounting portion 25 and the supporting arm 26 may have a mechanism for adjusting the position of the contact portion 27. The mechanism may be, for example, an elongated hole in the screwed portion of the support arm 26 and the mounting portion 25.

Embodiment 2.
In the second embodiment, the differences from the examples disclosed in the first embodiment will be described in detail. As for the features not described in the second embodiment, any of the features of the examples disclosed in the first embodiment may be adopted.

FIG. 7 is a front view of the cleaning device according to the second embodiment.

The cleaning device 24 is attached to the frame 18 in the same manner as in the example disclosed in the first embodiment. That is, the upper portion of the sheave 17 rotates from right to left. The contact portion 27 contacts the inner surface of the groove 21 between the top T of the sheave 17 and the rope guide 22 on the right side. At this time, the left side surface of the contact portion 27 is directed to the top portion T of the sheave 17. The right surface of the contact portion 27 is directed to the right rope guide 22. The left surface of the contact portion 27 is a vertical surface. The surface on the right side of the contact portion 27 is a surface that is inclined so as to face upward. The contact portion 27 is formed so that the thickness in the left-right direction increases from the upper side to the lower side.

The cleaning device 24 includes a saucer 32. The saucer 32 is, for example, a box-shaped device having an open right side surface. The saucer 32 is provided on the left side of the contact portion 27. The saucer 32 is supported by the support arm 26. The bottom on the right side of the saucer 32 is provided below the upper end of the contact portion 27. The support arm 26 has an opening or notch leading from the upper end of the contact portion 27 to the bottom of the saucer 32.

In the cleaning operation of the tension wheel 15, the contact portion 27 of the cleaning device 24 removes foreign matter from the groove 21 of the sheave 17. At this time, the foreign matter to be removed rides on the inclined surface on the right side of the contact portion 27. The foreign matter that has entered the contact portion 27 is pushed up along the inclined surface of the contact portion 27 by the foreign matter newly removed from the groove 21. The pushed-up foreign matter is guided from the contact portion 27 to the saucer 32. The saucer 32 receives the guided foreign matter.

As described above, in the cleaning device 24 according to the second embodiment, the surface of the contact portion 27 on the side facing the rope guide 22 is inclined so as to face upward inside the groove 21. The rope guide 22 covers a portion U of the governor rope 14 that is pulled upward when the car 9 of the elevator 1 rises.

As a result, the foreign matter removed from the groove 21 is guided upward by the inclined surface of the contact portion 27. Therefore, the foreign matter removed from the groove 21 does not overflow in front of and behind the contact portion 27. Therefore, the worker can easily wipe off the foreign matter adhering to the contact portion 27.

Further, the thickness of the contact portion 27 in the left-right direction is formed so as to increase from the upper side to the lower side of the contact portion 27.

As a result, the lower end of the contact portion 27 is less likely to bend in the rotation direction of the sheave 17. Therefore, the contact portion 27 can remove foreign matter more reliably. Further, an inclined surface of the contact portion 27 is easily formed.

Further, the cleaning device 24 includes a saucer 32. The saucer 32 is provided on the contact portion 27 on the side of the top T of the sheave 17. The saucer 32 receives the foreign matter removed from the groove 21 by the contact portion 27.

As a result, the foreign matter removed from the groove 21 is accumulated in the saucer 32. Therefore, the worker can reduce the frequency of wiping off the foreign matter adhering to the contact portion 27. As a result, the work load of the cleaning work of the tension wheel 15 is reduced. Further, the dirt around the tension wheel 15 due to the foreign matter removed from the groove 21 is suppressed.

The thickness of the contact portion 27 in the vertical direction may be constant. At this time, the contact portion 27 may be supported by the support arm 26 in a state where the lower end portion is tilted so as to face the lower right direction. Further, the support arm 26 may be tilted so that the left end portion faces the lower right direction.

1 Elevator, 2 Buildings, 3 Hoistway, 4 Landing, 5 Machinery Room, 6 Pit, 7 Hoisting Machine, 8 Main Rope, 9 Car, 10 Balance Weight, 11 Car Door, 12 Landing Door, 13 Governor, 14 Governor Rope, 15 Tension Car, 16 Tension Car Guide Rail, 17 Sheave, 18 Frame, 19 Weight, 20 Guide Shoe, 21 Groove, 22 Rope Guide, 23 Top Cover, 24 Cleaning Device, 25 Mounting Part, 26 Support Arm, 27 contact part, 28 mounting hole, 29 adjustment part, 30 bolts, 31 nuts, 32 saucer

Claims (11)

In a tension wheel that has a sheave in which the speed governor rope of the elevator is wound around a groove on the circumference from both left and right sides and a frame for accommodating the sheave and is displaced in the vertical direction as the elevator operates, the inner surface of the groove With the contact part that comes into contact from above,
A support arm that supports the contact portion at one end to prevent the contact portion from moving in the circumferential direction of the sheave.
A mounting portion provided at the other end of the support arm and attached to the frame by sandwiching the outer surface from the outside on the left or right side of the frame.
Equipped with a,
When the frame includes a rope guide that covers a portion of the speed governor rope that is pulled out upward when the elevator car rises, the mounting portion is attached to the frame by sandwiching the outer surface of the rope guide from the outside. It is attached
Elevator tension car cleaning device. In a tension wheel that has a sheave in which the speed governor rope of the elevator is wound around a groove on the circumference from both left and right sides and a frame for accommodating the sheave and is displaced in the vertical direction as the elevator operates, the inner surface of the groove With the contact part that comes into contact from above,
A support arm that supports the contact portion at one end to prevent the contact portion from moving in the circumferential direction of the sheave.
A mounting portion provided at the other end of the support arm and attached to the frame by sandwiching the outer surface from the outside on the left or right side of the frame.
Equipped with a,
The mounting portion includes a plurality of adjusting portions whose axial tips are directed toward the outer surface of the frame from different directions and whose axial positions of the tips are variable, and the tips of the plurality of adjusting portions are Attached to the frame by contacting the outer surface of the frame
Elevator tension car cleaning device. Each of the plurality of adjusting portions includes a pressing portion at the tip that increases the contact area with the outer surface of the frame.
The cleaning device for an elevator tension wheel according to claim 2 . When the frame includes a rope guide that covers a portion of the speed governor rope that is pulled out upward when the elevator car rises, the mounting portion is attached to the frame by sandwiching the outer surface of the rope guide from the outside. It is attached
The cleaning device for an elevator tension wheel according to claim 2 or 3 . The contact portion contacts the inner surface of the groove between the top of the sheave and the rope guide.
The cleaning device for an elevator tension wheel according to claim 1 or 4 . The angle of the lower end of the contact portion that contacts the inner surface of the groove is smaller than the angle formed by both inner surfaces of the groove in the cross section including the rotation axis of the sheave.
The cleaning device for an elevator tension wheel according to claim 5 . The surface of the contact portion facing the rope guide is inclined so as to face upward inside the groove.
The cleaning device for an elevator tension wheel according to any one of claims 1 or 4 to 6 . The thickness of the contact portion in the left-right direction is formed so as to increase from the upper side to the lower side of the contact portion.
The cleaning device for an elevator tension wheel according to claim 7 . A saucer provided on the side of the top of the sheave in the contact portion and receives a foreign matter removed from the groove by the contact portion is provided.
The cleaning device for an elevator tension wheel according to claim 7 or 8 . The contact portion is removable from the support arm.
The cleaning device for an elevator tension wheel according to any one of claims 1 to 9 . The contact portion is formed of a rubber member having rubber elasticity.
The cleaning device for an elevator tension wheel according to any one of claims 1 to 10 .

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