JP2020117342A - Maintenance tool for escalator handrail - Google Patents

Abstract

To provide a maintenance tool for an escalator handrail, which can efficiently clean the inner surface of the handrail over the entire right and left width.SOLUTION: A maintenance tool 16 comprises a handle 17 and a head 18. The handle 17 has first and second parts 19, 20. The first part 19 extends forward from a rear end. The second part 20 is bent downward from the first part 19 to extend up to a front end. The head 18 is provided at the front end of the second part 20. The head 18 has a cleaning body attaching surface 23 on the bottom surface. The cleaning body attaching surface 23 is a surface to which a cleaning body that comes into contact with and cleans the inner surface of the escalator handrail is attached. The cleaning body attaching surface 23 is directed in a direction where a normal N forms a sharp angle θ2 with a straight line L parallel to the first part 19. The right and left width of the cleaning body attaching surface 23 is narrower than the inner width of the handrail and wider than the width of a gap extending in a longitudinal direction on the backside of the handrail.SELECTED DRAWING: Figure 3

Description

The present invention relates to a maintenance tool for an escalator handrail.

Patent Document 1 discloses an example of a cleaning device for a handrail of an escalator. The cleaning device includes an arc-shaped sliding member and a brush. The brush is provided on a part of the arc of the sliding member. The sliding member slides and contacts the inner surface of the handrail. The brush is lifted upward by the friction between the sliding member and the inner surface of the handrail. When the coefficient of friction between the sliding member and the inner surface of the handrail decreases, the sliding member rotates due to its own weight. The brush contacts the inner surface of the handrail by the rotation of the sliding member. The brush cleans the inner surface of the handrail with which it comes into contact.

JP, 2013-163573, A

However, the brush of the cleaning device of Patent Document 1 comes into contact with the inner surface of the handrail from above due to the weight of the sliding member. For this reason, in a handrail having an inner width wider than the gap on the back side extending in the longitudinal direction, the cleaning device cannot clean the inner surface of the handrail over the entire left and right widths. On the other hand, when cleaning the inner surface of the handrail over the entire width in the left and right by directly holding the cleaning body in the hand, the worker who performs the cleaning work needs to rub the cleaning body with a strong force, and the work load of the cleaning work is large. ..

An object of the present invention is to provide a handrail maintenance tool for an escalator, which can efficiently clean the inner surface of the handrail over the entire left and right width.

A handrail maintenance tool for an escalator according to the present invention is provided at a front end of a second portion and a handle having a first portion extending forward from a rear end and a second portion bent downward from the first portion and extending to a front end, The lower surface has a cleaning element mounting surface to which a cleaning element that contacts and cleans the inner surface of the handrail of the escalator is mounted, and the normal line of the cleaning element mounting surface is oriented in a direction that forms an acute angle with a straight line parallel to the first portion. A head having a width in the left-right direction of the cleaning body mounting surface that is narrower than the inner width of the handrail and wider than the width of the gap extending in the longitudinal direction on the back side of the handrail.

According to the invention, the maintenance tool comprises a handle and a head. The handle has a first portion and a second portion. The first portion extends forward from the rear end. The second portion folds downward from the first portion and extends to the front end. The head is provided at the front end of the second portion. The head has a cleaning body mounting surface on the lower surface. The cleaning body mounting surface is a surface on which a cleaning body that comes into contact with the inner surface of the handrail of the escalator and is cleaned is mounted. The cleaning body mounting surface is oriented such that its normal line forms an acute angle with a straight line parallel to the first portion. The width of the cleaning body mounting surface in the left-right direction is smaller than the inner width of the handrail and wider than the width of the gap extending in the longitudinal direction on the back side of the handrail. As a result, the inner surface of the handrail can be efficiently cleaned over the entire left and right widths.

It is a block diagram of the escalator which concerns on Embodiment 1. FIG. 3 is a cross-sectional view taken along line AA of the escalator according to the first exemplary embodiment. FIG. 3 is a perspective view of the maintenance tool according to the first embodiment. It is a front view of the cleaning attachment which concerns on Embodiment 1. It is a top view of the cleaning attachment which concerns on Embodiment 1. FIG. 3 is a perspective view of the maintenance tool according to the first embodiment. It is a perspective view of the cleaning attachment which concerns on Embodiment 1. It is a figure which shows the example of cleaning of a handrail by the maintenance tool which concerns on Embodiment 1. It is a figure which shows the example of cleaning of a handrail by the maintenance tool which concerns on Embodiment 1. FIG. 6 is a perspective view of a coating attachment according to the second embodiment. FIG. 8 is a diagram showing an example of applying a lubricant by the maintenance tool according to the second embodiment.

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

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

In FIG. 1, the left-right direction of the escalator 1 is a direction perpendicular to the paper surface. In FIG. 1, the front-back direction of the escalator 1 is the left-right direction of the paper surface.

The escalator 1 is bridged between the upper floor and the lower floor of the building. The escalator 1 has a constant inclined portion 2 having an inclination angle θ1 between the upper floor and the lower floor. The inclination angle θ1 is, for example, 30°. The upper entrance/exit 3a of the escalator 1 is provided on the upper floor of the building. The lower entrance/exit 3b of the escalator 1 is provided on the lower floor of the building. The escalator 1 is a device that transports passengers between the upper entrance 3a and the lower entrance 3b. The escalator 1 includes a main frame 4, a drive device 5, a pair of step chains 6, a plurality of steps 7, a pair of balustrades 8, a pair of handrails 9, a pair of handrail drive devices 10, and a control (not shown). And a board.

The main frame 4 is bridged between the upper entrance 3a and the lower entrance 3b. In the escalator 1, the upper machine room 11 a is provided at the upper end of the main frame 4. The upper machine room 11a is provided below the upper entrance/exit port 3a. In the escalator 1, the lower machine room 11b is provided at the lower end of the main frame 4. The lower machine room 11b is provided below the lower entrance/exit 3b.

The drive device 5 is provided, for example, in the upper machine room 11a. The driving device 5 is a device that generates a driving force. The drive device 5 includes, for example, a motor and a speed reducer.

Each of the pair of step chains 6 is an endless chain. One of the pair of step chains 6 is provided on the left side of the escalator 1. The other of the pair of step chains 6 is provided on the right side of the escalator 1. Each of the pair of step chains 6 is a device that circulates by the driving force generated by the driving device 5.

Each of the plurality of steps 7 is connected between the pair of step chains 6. The whole of the plurality of steps 7 is annularly connected along the pair of step chains 6.

One of the pair of balustrades 8 is provided on the left side of the plurality of steps 7. The other of the pair of balustrades 8 is provided on the right side of the plurality of steps 7. Each of the pair of balustrades 8 includes a handrail guide rail 12. The handrail guide rail 12 is provided so as to be inclined at the inclination angle θ1 of the escalator 1 in the constant inclination portion 2.

Each of the pair of handrails 9 is an endless ring. Each of the pair of handrails 9 is formed of, for example, synthetic rubber and canvas. One of the pair of handrails 9 is provided on the left side of the plurality of steps 7. The other of the pair of handrails 9 is provided on the right side of the plurality of steps 7. The left handrail 9 covers the handrail guide rail 12 of the left handrail 8. The right handrail 9 covers the handrail guide rail 12 of the right handrail 8. The inner surface of the handrail 9 is a surface that covers the handrail guide rail 12.

One of the pair of handrail driving devices 10 is provided on the left side of the escalator 1. The other of the pair of handrail drive devices 10 is provided on the right side of the escalator 1. The left handrail drive device 10 is a device that cyclically moves the left handrail 9 along the handrail guide rails 12 by the driving force generated by the drive device 5. The right handrail drive device 10 is a device that circulates the right handrail 9 along the handrail guide rails 12 by the driving force generated by the drive device 5. Each of the pair of handrail driving devices 10 includes a roller 13. The roller 13 is a device that transmits a driving force by a frictional force with the inner surface of each of the pair of handrails 9. The roller 13 contacts the center in the left-right direction of each of the pair of handrails 9.

The control panel is provided, for example, in the upper machine room 11a. The control panel controls the operation of the drive device 5. The operation of the drive device 5 is, for example, operation or stop of the drive device 5.

For example, when the escalator 1 is going up, the driving device 5 generates a driving force under the control of the control panel. Each of the pair of step chains 6 cyclically moves by the driving force generated by the driving device 5. Each of the plurality of steps 7 follows the cyclic movement of the pair of step chains 6 and cyclically moves with the upper side as the outward path. The plurality of steps 7 for moving on the outward path are arranged in a stepped manner in the constant inclined portion 2 of the escalator 1. Each of the pair of handrail driving devices 10 cyclically moves each of the pair of handrails 9 by the driving force generated by the driving device 5. Each of the pair of handrails 9 cyclically moves at the same moving speed as the moving speed of each of the plurality of steps 7.

During the ascending operation of the escalator 1, the user grasps one of the front sides of the pair of handrails 9 and gets on any of the plurality of steps 7 from the lower entrance/exit 3b. The user stops on the step 7 of moving on the outward path and moves to the upper entrance 3a.

FIG. 2 is an AA cross-sectional view of the escalator according to the first embodiment.

The front side of the handrail 9 is the surface on the side grasped by the user. The handrail 9 has a gap 14 having a width W1 in the left-right direction on the back side. The width W1 of the gap 14 of the handrail 9 is 42 mm, for example. The gap 14 of the handrail 9 extends in the longitudinal direction. The handrail 9 has curved portions 15 on the left and right that wrap around the handrail guide rail 12 from the front side to the back side. The gap 14 of the handrail 9 is a gap opened between the end portions on the back side of the left and right curved portions 15. The inner width W2 of the handrail 9 is the distance between the inner surfaces of the left and right curved portions 15. The inner width W2 of the handrail 9 is wider than the width W1 of the gap 14 of the handrail 9.

Here, abrasion powder may accumulate between the handrail 9 and the handrail guide rail 12 as the escalator 1 is operated. The abrasion powder reduces the frictional force between the handrail drive device 10 and the inner surface of the handrail 9. In this case, the driving force may not be efficiently transmitted from the handrail drive device 10 to the handrail 9. At this time, the moving speed of the handrail 9 may deviate from the moving speed of step 7. Therefore, a worker who performs maintenance work on the escalator 1 removes the abrasion powder by cleaning the inner surface of the handrail 9 using the maintenance tool 16 not shown in FIG.

Subsequently, the configuration of the maintenance tool 16 will be described with reference to FIGS. 3 to 6.

FIG. 3 is a perspective view of the maintenance tool according to the first embodiment.
In FIG. 3, the left direction of the paper represents the front direction of the maintenance tool 16. In FIG. 3, the upward direction of the paper surface represents the upward direction of the maintenance tool 16.

The maintenance tool 16 includes a handle 17 and a head 18.

The handle 17 is a rod-shaped member. The handle 17 is, for example, a steel pipe. The handle 17 has a first portion 19 and a second portion 20. The first portion 19 is a portion that extends forward from the rear end of the handle 17. The second portion 20 is a portion that is folded downward from the first portion 19 and extends to the front end of the handle 17. The front end of the handle 17 is flattened in the vertical direction. The handle 17 has a mounting hole at the crushed front end. The length of the handle 17 is, for example, about the length of the lower arm of the worker. The length of the first portion 19 of the handle 17 is, for example, 320 mm.

The head 18 is provided at the front end of the second portion 20 of the handle 17. The head 18 includes a connecting portion 21 and a cleaning attachment 22.

The connecting portion 21 is provided on the second portion 20 of the handle 17. The connection portion 21 is a U-shaped member that opens downward. The connecting portion 21 extends in the front-rear direction. The lower end of the connecting portion 21 is formed in a sawtooth shape. The lower end of the connecting portion 21 contacts the upper surface of the cleaning attachment 22. The connection part 21 has two mounting holes arranged side by side on the upper surface.

The cleaning attachment 22 is connected below the connecting portion 21. The cleaning attachment 22 has a cleaning body mounting surface 23.

The cleaning body mounting surface 23 is a surface to which the cleaning body 24 not shown in FIG. 3 is mounted. The cleaning body 24 is, for example, a non-woven fabric scrubber made of resin or a polishing pad. The cleaning body mounting surface 23 is, for example, a hook surface of a surface fastener.

In this example, the cleaning body mounting surface 23 is provided on the entire lower surface of the cleaning attachment 22. The cleaning body mounting surface 23 is oriented such that the normal line N forms an acute angle θ2 with the straight line L parallel to the first portion 19. The acute angle θ2 is equal to the complement of the inclination angle θ1 of the escalator 1. Here, the complement of θ1 is an angle obtained by subtracting θ1 from a right angle of 90°. For example, when the tilt angle θ1 of the escalator 1 is 30°, the complementary angle of θ1 is 60°. In this case, the acute angle θ2 is 60°.

FIG. 4 is a front view of the cleaning attachment according to the first embodiment.

The cleaning attachment 22 has a connecting portion 25. The connecting portion 25 is provided on the upper surface of the cleaning attachment 22. The connecting portion 25 has a mounting groove 26 extending in the front-rear direction on the upper surface.

FIG. 5 is a top view of the cleaning attachment according to the first embodiment.

The cleaning attachment 22 has a rectangular shape with rounded corners when viewed from above. The cleaning body mounting surface 23 is provided on the entire lower surface of the cleaning attachment 22. The length of the cleaning element mounting surface 23 in the front-rear direction is, for example, 100 mm. The width of the cleaning element mounting surface 23 in the left-right direction is wider than the width W1 of the gap 14 of the handrail 9. The width of the cleaning element mounting surface 23 in the left-right direction is smaller than the inner width W2 of the handrail 9. The length of the cleaning element mounting surface 23 in the front-rear direction is, for example, 56 mm. The width of the connecting portion 25 in the left-right direction is narrower than the width W1 of the gap 14 of the handrail 9.

FIG. 6 is a perspective view of the maintenance tool according to the first embodiment.
In FIG. 6, the left-right direction of the paper surface is the left-right direction of the maintenance tool 16.

The head 18 includes two attachments 27. The two attachments 27 are arranged side by side. Each of the two attachments 27 includes a bolt 28 and a bracket 29. The receiving fitting 29 is a plate-shaped member having a mounting hole. The width of the receiving fitting 29 in the left-right direction is wider than the width of the mounting groove 26 of the connecting portion 25 in the left-right direction. The receiving fitting 29 is inserted inside the connecting portion 25 from the front-rear direction. The bolt 28 of the attachment 27 on the front side is passed through the attachment hole on the front side of the connecting portion 21 from above. The bolt 28 of the rear attachment 27 is passed through the attachment hole at the front end of the handle 17 and the attachment hole at the rear side of the connecting portion 21 in this order from above. For each of the two fittings 27, the bolt 28 is threaded through the fitting groove 26 and into the fitting hole of the fitting inside the connecting portion 25. The head 18 is attached to the handle 17 by fastening the bolts 28 of the two attachments 27. Further, the cleaning attachment 22 is detachably attached to the connecting portion 21 by fastening the bolt 28.

The weight of the head 18 is, for example, the weight per unit length of the handrail guide rail 12 multiplied by the length of the cleaning element mounting surface 23 in the front-rear direction. The sum of the weights of the handle 17 and the head 18 is, for example, heavier than the weight of the handrail 9 per unit length multiplied by the length of the cleaning element mounting surface 23 in the front-rear direction.

Next, an example of cleaning the inner surface of the handrail 9 using the maintenance tool 16 will be described with reference to FIGS. 7 to 9.

FIG. 7 is a perspective view of the cleaning attachment according to the first embodiment. 8 and 9 are diagrams showing an example of cleaning the handrail with the maintenance tool according to the first embodiment. FIG. 8 shows a cross section passing through the center of the head 18 in the front-rear direction. FIG. 9 shows a state in which the worker who is performing the cleaning work is viewed from the front.

First, the worker stops the escalator 1. After that, the worker removes the handrail 9 from the handrail guide rail 12. At this time, the worker removes the handrail 9 over the entire length of the handrail guide rail 12. The worker turns the back side of the removed handrail 9 upward.

Next, as shown in FIG. 7, the worker attaches the cleaning body 24 to the cleaning body mounting surface 23. Before being attached to the cleaning body mounting surface 23, the cleaning body 24 is formed in a rectangular shape by being cut with scissors, for example. Here, the length of the cleaning body 24 in the front-rear direction is the length of the cleaning body mounting surface 23 in the front-rear direction. The horizontal length of the cleaning body 24 is longer than the horizontal length of the cleaning body mounting surface 23.

Next, as shown in FIG. 8, the worker pushes the head 18 attached to the front end of the handle 17 together with the cleaning body 24 inward from the gap 14 of the handrail 9. At this time, the cleaning body 24 extends from the left and right sides of the cleaning attachment 22 to the upper surface. The cleaning body 24 deforms along the left and right curved portions 15. The cleaning body 24 contacts the inner surface of the handrail 9 over the entire width on the left and right.

Next, as shown in FIG. 9, the worker supports the front side of the handrail 9 from below, for example, with the left hand. The handrail 9 is supported in a state of being inclined by the inclination angle θ1 of the escalator 1. The worker grips the rear end of the first portion 19 of the handle 17 with the right hand. Since the cleaning body mounting surface 23 is oriented in a direction in which the normal line N forms a complement of the inclination angle θ1 with the straight line L parallel to the first portion 19, the cleaning body mounting surface 23 is brought into contact with the inner surface of the handrail 9. As a result, the first portion 19 becomes horizontal.

The worker moves the maintenance tool 16 to the left side in the horizontal direction with the right hand. The cleaning element mounting surface 23 of the maintenance tool 16 pushed to the left moves along with the cleaning element 24 along the inner surface of the handrail 9. At this time, the cleaning body 24 scrapes off the abrasion powder over the entire left and right widths of the inner surface of the handrail 9.

In this way, the worker cleans the inner surface of the handrail 9 at the constant slope 2 while climbing the stopped step 7 from the lower floor to the upper floor. After climbing to the upper floor, the worker moves the part of the inner surface of the handrail 9 that has not been cleaned yet to the constant slope 2. The worker cleans the inner surface of the handrail 9 at the constant slope 2 while climbing from the lower floor to the upper floor again in the stopped step 7. The worker repeats this until the inside of the handrail 9 is cleaned over the entire circumference.

As described above, the maintenance tool 16 according to the first embodiment includes the handle 17 and the head 18. The handle 17 has a first portion 19 and a second portion 20. The first portion 19 extends forward from the rear end. The second portion 20 folds downward from the first portion 19 and extends to the front end. The head 18 is provided at the front end of the second portion 20. The head 18 has a cleaning body mounting surface 23 on the lower surface. The cleaning body mounting surface 23 is a surface on which the cleaning body 24 that comes into contact with the inner surface of the handrail 9 of the escalator 1 and is cleaned is mounted. The cleaning body mounting surface 23 is oriented such that the normal line N forms an acute angle θ2 with the straight line L parallel to the first portion 19. The width of the cleaning element mounting surface 23 in the left-right direction is narrower than the inner width W2 of the handrail 9 and wider than the width W1 of the gap 14 extending in the longitudinal direction on the back side of the handrail 9.

Since the width of the cleaning body mounting surface 23 in the left-right direction is narrower than the inner width W2 of the handrail 9, the worker can push the head 18 to which the cleaning body 24 is attached into the inside of the handrail 9. Since the width of the cleaning element mounting surface 23 in the left-right direction is wider than the width W1 of the gap 14 of the handrail 9, the cleaning element 24 contacts the inside of the curved portion 15 inside the handrail 9. Since the normal line N of the cleaning body mounting surface 23 forms an acute angle θ2 with the straight line L parallel to the first portion 19, the first portion 19 is directed laterally by bringing the cleaning body mounting surface 23 into contact with the inner surface of the handrail 9. .. Therefore, the cleaning body 24 is rubbed along the inner surface of the handrail 9 by the worker moving the first portion 19 laterally. Since the worker is laterally positioned with respect to the handrail 9, it is easy to move the arm laterally. Further, since the second portion 20 is folded downward from the first portion 19, the cleaning body 24 comes into contact with the handrail 9 at a position close to the hand holding the first portion 19. Therefore, when the maintenance tool 16 is moved laterally, the cleaning body 24 is less likely to move to the outside of the hand supporting the handrail 9. Therefore, the force for moving the maintenance tool 16 is easily transmitted as the force for rubbing the inner surface of the handrail 9 by the cleaning body 24. As a result, the worker can efficiently clean the inner surface of the handrail 9 over the entire left and right width using the maintenance tool 16.

Further, the normal line N of the cleaning body mounting surface 23 of the head 18 is oriented in a direction forming an angle equal to the complementary angle of the straight line L parallel to the first portion 19 and the inclination angle θ1 of the escalator 1.

As a result, the cleaning body mounting surface 23 is brought into contact with the inner surface of the handrail 9 so that the first portion 19 faces the horizontal direction. Therefore, the worker can clean the inner surface of the handrail 9 by moving the maintenance tool 16 in the horizontal direction. Depending on the structure of the escalator 1, the worker can efficiently clean the inner surface of the handrail 9 over the entire left and right widths.

The head 18 also includes a connecting portion 21 and a cleaning attachment 22. The connecting portion 21 is provided at the front end of the second portion 20. The cleaning attachment 22 has a cleaning body mounting surface 23 on the lower surface. The cleaning attachment 22 can be attached to and detached from the connecting portion 21.

The worker can replace the cleaning attachment 22 according to the type of the handrail 9. As a result, in various types of escalator 1, the worker can efficiently clean the inner surface of the handrail 9 over the entire width in the left and right.

The left and right widths of the connecting portion 21 are smaller than the width W1 of the gap 14 of the handrail 9. Therefore, the connecting portion 21 does not interfere with the handrail 9 in the cleaning operation of rubbing the cleaning body 24 on the inner surface of the handrail 9. This facilitates cleaning work.

The sum of the weights of the handle 17 and the head 18 is heavier than the weight of the handrail 9 per unit length multiplied by the length of the cleaning element mounting surface 23 in the front-rear direction.

During normal operation of the escalator 1, the handrail 9 rides on the handrail guide rail 12 in the outward path. Therefore, the abrasion powder can receive the pressure due to the weight of the handrail 9 on the inner surface of the handrail 9. Here, during the cleaning operation, the maintenance tool 16 applies pressure to the inner surface of the handrail 9 by the weight of the handle 17 and the head 18. At this time, even if the worker does not press the cleaning body 24, the cleaning body 24 is pressed against the inner surface of the handrail 9 with a pressure higher than the pressure with which the abrasion powder is pressed during normal operation. As a result, the worker can efficiently perform cleaning without pressing the cleaning body 24 strongly against the inner surface of the handrail 9.

Further, the shape of the cleaning attachment 22 is a shape with rounded corners when viewed from above. The cleaning attachment 22 is moved back and forth inside the handrail 9. At this time, the cleaning attachment 22 is unlikely to be caught on the inner surface of the handrail 9. Therefore, the inner surface of the handrail 9 is less likely to be damaged during the cleaning work. The worker can easily perform the cleaning work.

The length of the cleaning body mounting surface 23 in the front-rear direction is set so that the worker can move the head 18 against the friction between the cleaning body 24 and the inner surface of the handrail 9 in the cleaning work. The length of the cleaning element mounting surface 23 in the front-rear direction is set to be longer than the width in the left-right direction, for example. The length of the cleaning body mounting surface 23 in the front-rear direction may be set to a length determined by an experiment. Alternatively, the length of the cleaning element attachment surface 23 in the front-rear direction may be set to a length determined based on statistical information such as the physical strength of the worker. The length of the handle 17 is set so that the worker can use the maintenance tool 16 by hand. The length of the handle 17 may be set on the basis of, for example, statistical information on the dimensions of the worker's arm or body.

Further, the first portion 19 and the second portion 20 of the handle 17 may be connected by a joint portion. The joint portion is a portion that variably connects the angle formed by the first portion 19 and the second portion 20. The head 18 may be attached to the handle 17 such that the angle of the cleaning body attachment surface 23 is variable.

Further, the head 18 may be formed integrally with the front end of the handle 17. The connecting portion 21 may be formed integrally with the front end of the handle 17.

Further, the maintenance tool 16 may include an operation unit and a displacement mechanism. The operation unit is provided at the rear end of the first portion 19. The displacement mechanism is provided on the head 18. The displacement mechanism is displaced upward from both left and right ends of the head 18 when the operation unit receives an operation.

The operation unit is, for example, a lever that receives an operation gripped by a worker. The lever is connected to the displacement mechanism, for example by a wire running inside the first part 19. The displacement mechanism is, for example, a leaf spring that protrudes upward from the left and right ends of the head 18 when the wire is pulled.

When the head 18 is pushed into the inside of the handrail 9 in the cleaning work, when the operator operates the operation part, the displacement mechanism moves upward the cleaning body 24 that extends around the upper surface at both left and right ends of the head 18. lift. At this time, the cleaning body 24 is pressed against the upper side of the inner surface of the handrail 9. This allows the worker to clean the upper side of the inner surface of the handrail 9. Further, the head 18 receives a reaction force from the upper side of the inner surface of the handrail 9 to the lower side. As a result, the cleaning body 24 contacts the lower side of the inner surface of the handrail 9 with higher pressure. Therefore, the worker can more efficiently clean the inner surface of the handrail 9.

In addition, the maintenance tool 16 may include a measuring unit. The measurement unit is provided at the front end of the second portion 20 or the head 18. The measuring unit measures the width W1 of the gap 14 when the head 18 is inserted inside the handrail 9.

The measurement unit is, for example, a capacitance-type or optical-type non-contact gap sensor. The measuring unit may be a contact type, for example, a gap gauge.

The width W1 of the gap 14 changes due to deformation of the handrail 9 or the like. The worker can inspect the deformation of the handrail 9 and the like at the same time as the cleaning work. As a result, the work efficiency of maintenance and inspection of the escalator 1 is increased. Further, when the measurement unit is a non-contact type, the measurement of the width W1 of the gap 14 by the measurement unit does not hinder the cleaning work. When the measuring unit is a contact type, a part such as a roller that reduces friction may be provided in a portion that comes into contact with the handrail 9.

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

In the handrail 9, the friction between the inner surfaces of the left and right curved portions 15 and the handrail guide rail 12 may become a resistance to the circular movement of the handrail 9. At this time, the worker uses the maintenance tool 16 to apply the lubricant to the inner surface of the curved portion 15 of the handrail 9. The lubricant is, for example, paraffin.

Subsequently, the configuration of the maintenance tool according to the second embodiment will be described with reference to FIG. 10.
The maintenance tool 16 includes a coating attachment 30. FIG. 10 is a perspective view of the coating attachment 30 according to the second embodiment.

The coating attachment 30 includes a pair of coating units 31. The pair of application parts 31 are provided on both left and right sides of the application attachment 30. When the lubricant is a solid lubricant such as paraffin, each of the pair of application parts 31 is, for example, a lubricant formed in conformity with the inner surface of the curved part 15. Each of the pair of application parts 31 extends in the front-rear direction. In relation to the handle 17, each of the pair of coating portions 31 extends in a direction forming an acute angle θ3 with the straight line L parallel to the first portion 19. The acute angle θ3 is equal to the inclination angle θ1 of the escalator 1. The lower end of each of the pair of application parts 31 is located below the lower surface of the left and right central parts of the application attachment 30. The coating attachment 30 has a connecting portion 25 on the upper surface. The coating attachment 30 is detachably connected to the connecting portion 21 by the connecting portion 25.

Subsequently, an example of applying the lubricant using the maintenance tool 16 will be described with reference to FIG. 11.
FIG. 11 is a diagram showing an example of applying the lubricant by the maintenance tool according to the second embodiment. FIG. 11 shows a cross section passing through the center of the head 18 in the front-rear direction.

The worker attaches the coating attachment 30 to the connection portion 21 instead of the cleaning attachment 22. The worker pushes the coating attachment 30 attached to the connecting portion 21 inward from the gap 14 of the handrail 9. At this time, the pair of application parts 31 contact the inner surfaces of the left and right curved parts 15. The lower surface of the coating attachment 30 faces the inner surface of the handrail 9 with a space at the center in the left-right direction.

The worker moves the maintenance tool 16 to the left side in the horizontal direction with the right hand. The application attachment 30 of the maintenance tool 16 pushed to the left moves along the inner surface of the handrail 9. At this time, the pair of application parts 31 apply the lubricant to the inner surfaces of the left and right curved parts 15. In this example, the application attachment 30 does not apply the lubricant to the inner surface of the handrail 9 at the central portion in the left-right direction.

As described above, the maintenance tool 16 according to the second embodiment includes the application attachment 30. The coating attachment 30 can be attached to and detached from the connecting portion 21. The coating attachment 30 has coating portions 31 on both left and right ends. The coating part 31 extends in a direction forming an acute angle θ3 with the straight line L parallel to the first portion 19. The application unit 31 applies a lubricant to the inner surface of the handrail 9.

As a result, the extending direction of the coating portion 31 forms an acute angle θ3 with the straight line L parallel to the first portion 19, so that the first portion 19 faces the lateral direction by bringing the coating portion 31 into contact with the inner surface of the handrail 9. Therefore, the application unit 31 is rubbed along the inner surface of the handrail 9 by the worker moving the first portion 19 in the lateral direction. Thereby, the worker can efficiently apply the lubricant to the left and right ends of the inner surface of the handrail 9 by using the maintenance tool 16. Further, the coating attachment 30 can share the cleaning attachment 22, the handle 17 and the connecting portion 21. For this reason, the worker can reduce the number of parts of the maintenance tool 16 brought into the site of the maintenance work. Further, the coating parts 31 are provided on both left and right ends of the coating attachment 30. As a result, the lubricant is not applied to the central portion of the inner surface of the handrail 9. For this reason, since the lubricant is not applied to the center portion inside the handrail 9, the lubricant does not hinder the transmission of the driving force by the handrail drive device 10. Further, the worker can simultaneously apply the lubricant to the inside of the curved portions 15 on both the left and right sides by moving the maintenance tool 16 once in the lateral direction. As a result, the work load of the maintenance work by the worker is reduced.

1 escalator, 2 constant inclination part, 3a upper entrance/exit, 3b lower entrance/exit, 4 main frame, 5 driving device, 6 step chain, 7 steps, 8 balustrade, 9 handrail, 10 handrail driving device, 11a upper machine room, 11b Lower machine room, 12 handrail guide rails, 13 rollers, 14 gaps, 15 curved parts, 16 maintenance tools, 17 handles, 18 heads, 19 first part, 20 second part, 21 connection part, 22 cleaning attachment, 23 cleaning body Mounting surface, 24 cleaning body, 25 connecting part, 26 mounting groove, 27 mounting tool, 28 bolt, 29 receiving metal fitting, 30 coating attachment, 31 coating part

Claims (8)

A handle having a first portion extending forward from a rear end and a second portion folding downward from the first portion and extending to a front end,
The lower surface has a cleaning body mounting surface that is provided at the front end of the second portion and on which a cleaning body that contacts and cleans the inner surface of the handrail of the escalator is mounted, and the normal line of the cleaning body mounting surface is in the first portion. A head that is directed in a direction that forms an acute angle with a parallel straight line, the width of the cleaning body mounting surface in the left-right direction is narrower than the inner width of the handrail, and is wider than the width of the gap extending in the longitudinal direction on the back side of the handrail,
Escalator handrail maintenance tool equipped with. The maintenance tool for a handrail of an escalator according to claim 1, wherein the cleaning body mounting surface of the head is oriented in a direction in which a normal line forms an angle equal to a complement of an inclination angle of the escalator with a straight line parallel to the first portion. .. The head is
A connection portion provided at the front end of the second portion,
A cleaning attachment that has the cleaning body mounting surface on the lower surface and is removable from the connection portion,
The maintenance tool for the handrail of the escalator according to claim 1 or 2. The application attachment which is attachable/detachable to/from the connection portion and has application portions extending in a direction forming an acute angle with a straight line parallel to the first portion and applying a lubricant to an inner surface of the handrail at both left and right ends. Maintenance tool for handrail of escalator described in. The maintenance tool for the handrail of the escalator according to any one of claims 3 to 4, wherein the left and right widths of the connection portion are smaller than the width of the gap. The sum of the weights of the handle and the head is heavier than the weight obtained by multiplying the weight per unit length of the handrail by the length of the cleaning body mounting surface in the front-rear direction. Maintenance tool for the handrail of the escalator described. An operating portion provided at the rear end of the first portion,
A displacement mechanism provided on the head and displaced upward from both left and right ends of the head when the operation unit receives an operation;
The maintenance tool for the handrail of the escalator according to claim 1 or 2. The measurement part provided in the front end of the said 2nd part or the said head, and measuring the width|variety of the said gap when the said head is inserted inside the said handrail, It has any one of Claim 1 to Claim 7. Maintenance tool for handrail of escalator described in.

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