JP2007261713A - Handrail cleaning device for escalator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To clean a canvas surface by one person with a handrail cleaning device for an escalator. <P>SOLUTION: The handrail cleaning device 10 is used in such a state that the canvas surface 12 is directed to an upper surface. The handrail cleaning device 10 has a brush 13 fitted to the width of a recession shape of the canvas surface 12; and a frame 20 for supporting the brush 13. The brush 13 is abutted on the canvas surface 12 and removes an abrasion powder deposited on the canvas surface 12. In the handrail cleaning device 10, the brush 13 is fitted to the width of the recession shape of the canvas surface 12 and a movement handrail 11 is clamped from an upper/lower direction. To be concrete, the brush 13 can be only moved in a direction along the movement handrail 11. Thereby, the handrail cleaning device 10 can be moved along the movement handrail 11. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an escalator handrail cleaning device, and more particularly to an escalator handrail cleaning device for cleaning a canvas surface of a moving handrail.

  A schematic configuration of a general escalator will be described with reference to FIG. The escalator 50 includes a plurality of steps (not shown) that rise or fall along an inclination, and a moving handrail 51 that moves in synchronization with the steps. Rails (not shown) are provided on both sides of the step to prevent the user from falling. A handrail guide rail (not shown) for guiding the circulation of the moving handrail 51 is provided on the outer periphery of the balustrade. This handrail guide rail forms a circulation path for guiding the circulation movement of the moving handrail 51.

  The moving handrail 51 is made of rubber and has an endless shape. The moving handrail 51 is attached to the handrail guide rail so that it can be circulated. On the circulation path of the moving handrail 51, a handrail driving sheave 52, a pressure roller 54, and a handrail tensioning device 53 are arranged. The handrail drive sheave 52 is a drive wheel for driving the moving handrail 51. A moving handrail 51 is wound around a part of the outer periphery of the handrail drive sheave 52. The pressure roller 54 is positioned so as to sandwich the wound handrail 51 around the handrail drive sheave 52. The pressure roller 54 presses the moving handrail 51 against the handrail driving sheave 52. The moving handrail 51 is wound around a part of the outer periphery of the handrail tensioning device 53, and the tension applied to the moving handrail 51 is adjusted by moving the handrail tensioning device 53 outward or inward with respect to the circulation path.

  Next, the operation when the moving handrail 51 circulates will be described. The moving handrail 51 is given a predetermined tension necessary for stably circulating and moving by the handrail tensioning device 53. When the handrail driving sheave 52 rotates, the driving force is efficiently transmitted to the moving handrail 51 pressed against the pressure roller 54. Thereby, the moving handrail 51 can circulate and move along the circulation path.

  With the above configuration, the moving handrail 51 can circulate on the handrail guide rail. At this time, the moving handrail 51 circulates while contacting the handrail drive sheave 52, the handrail tensioning device 53, the handrail guide rail, and the like. As a result, the rubber on the canvas surface, which is the contact surface of the moving handrail 51, is worn, and abrasion powder is generated from the canvas surface. The wear powder causes a slip between the moving handrail 51 and the handrail driving sheave 52, and the driving force from the handrail driving sheave 52 is not easily transmitted to the moving handrail 51. Moreover, the abrasion powder peeled off from the canvas surface is scattered and causes the surroundings to become dirty.

  The following Patent Document 1 describes an escalator including a handrail cleaning device 56 on a circulation path of a moving handrail 51. The handrail cleaning device 56 has a brush (not shown), a hose 57, and a fixing member (not shown) for fixing the brush. The brush abuts against the canvas surface and removes abrasion powder adhering to the canvas surface. The hose 57 is connected to a cleaner 55 installed in the upper machine room of the escalator 50. When the cleaner 55 is operated, the hose 57 sucks the abrasion powder removed from the canvas surface by the brush. The fixing member fixes the brush in a state where the brush is pressed against the canvas surface.

  With the above configuration, the handrail cleaning device 56 can remove the abrasion powder on the canvas surface of the moving handrail 51. The handrail cleaning device 56 can automatically clean the canvas surface of the moving handrail 51 when the escalator 50 is operated, that is, when the moving handrail 51 is circulated.

Japanese Patent Laid-Open No. 10-7368

  However, even if the handrail cleaning device 56 is used, it is difficult to remove the friction powder that has entered the fibers on the canvas surface of the moving handrail 51. Moreover, when the handrail driving sheave 52 is pressed against the canvas surface of the moving handrail 51, the friction powder enters between the fibers on the canvas surface and is fixed. Due to the adhered friction powder, slip occurs between the moving handrail 51 and the handrail driving sheave 52, and the driving force from the handrail driving sheave 52 becomes difficult to be transmitted to the moving handrail 51.

  There is a method of increasing the pressing force of the brush pressing the canvas surface in order to remove the adhered wear powder. However, the brush damages the canvas surface where the abrasion powder is not fixed.

  The conventional handrail cleaning device 56 cannot prevent the abrasion powder from sticking to the canvas surface. Therefore, during maintenance of the escalator 50, the worker removes the wear powder that has adhered to the canvas surface by manual work. Specifically, an electric polishing machine such as a wire brush is used to remove the abrasion powder adhered to the canvas surface.

  However, the abrasion powder removal operation is a two-person operation in which one person presses the moving handrail 51 and the other person presses the polishing machine against the canvas surface of the moving handrail 51. Moreover, since it takes time to remove the abrasion powder, it is a heavy labor.

  An object of the present invention is to provide a handrail cleaning device for an escalator that can clean a canvas surface with a simple structure and can perform work alone.

  In order to solve the above-mentioned problems, the handrail cleaning device for an escalator according to the present invention is a handrail cleaning device for a portable escalator for cleaning a canvas surface, which is the bottom surface of the concave back surface of the moving handrail of the escalator. A brush portion for cleaning the canvas surface, a drive portion for rotationally driving the brush portion, and guide means for guiding the handrail cleaning device to move along the moving handrail.

  Moreover, in the handrail cleaning device for an escalator of the present invention, the guide means has a first rotating member that rotates on the canvas surface, and the first rotating member fits into a concave width on the back surface of the moving handrail. Therefore, it is preferable to guide the handrail cleaning device.

  In the handrail cleaning device for an escalator according to the present invention, it is preferable that the guide means includes a second rotating member that sandwiches the moving handrail together with the first rotating member and rotates the surface of the moving handrail.

  In the handrail cleaning device for an escalator according to the present invention, it is preferable that the brush portion has a cylindrical shape having an axis substantially parallel to the canvas surface, and the brush portion is the first rotating member.

  The handrail cleaning device for an escalator according to the present invention is located on both sides in the width direction of the moving handrail, is located on both sides in the width direction of the moving handrail, and a pair of first arms that support the first rotating member, It is preferable to have a pair of second arms that support the second rotating member, and spring means that urges the first arm and the second arm toward each other and presses the first rotating member against the canvas surface. It is.

  Further, the handrail cleaning device for an escalator according to the present invention has a grip portion for manually pressing the brush portion against the canvas surface, and when a force is applied to the grip portion, the first rotating member sandwiching the moving handrail It is preferable that a pressing force for pressing the canvas surface acts on the brush portion with the second rotating member as a fulcrum.

  In the handrail cleaning device for an escalator according to the present invention, it is preferable that the brush portion has a cylindrical shape having an axis substantially parallel to the canvas surface.

  Further, the handrail cleaning device for an escalator of the present invention has a side guard portion on the side surface of the handrail cleaning device, and this side guard portion is an inner plate of the escalator when the handrail cleaning device moves along the moving handrail. It is preferable to prevent contact with the inner plate of the handrail cleaning device main body.

  In addition, the handrail cleaning device for an escalator according to the present invention preferably includes a nozzle that sucks a removed material generated by the brush portion cleaning the canvas surface.

  According to the handrail cleaning device for an escalator of the present invention, the canvas surface can be cleaned with a simple structure, and the work can be performed alone.

  Hereinafter, an embodiment (referred to as a first embodiment) according to the present invention will be described with reference to the drawings. Since the general configuration of a general escalator has been described above, a description thereof will be omitted. FIG. 1 is a perspective view showing a schematic configuration of an escalator handrail cleaning apparatus according to an embodiment of the present invention. The handrail cleaning device 10 is a cleaning device that removes wear powder adhering to the canvas surface 12 of the moving handrail 11. The canvas surface 12 is a bottom surface of the back surface of the moving handrail 11 having a concave shape. The handrail cleaning device 10 according to the first embodiment is used in a state where the canvas surface 12 is an upper surface.

  The handrail cleaning device 10 includes a brush 13 that fits into the concave width of the canvas surface 12 and a frame 20 that supports the brush 13. The brush 13 abuts on the canvas surface 12 and removes wear powder adhering to the canvas surface 12. The frame 20 includes a fixed frame 21 and a movable frame 22 that supports the brush 13 and is supported so as to be movable with respect to the fixed frame 21.

  The fixed frame 21 is substantially U-shaped, and a U-shaped horizontal image is bent halfway. In the following, the portion ahead of the bent portion of the horizontal image is referred to as the basic frame 21a, and the portion closer to the vertical image than the bent portion of the horizontal image and the portion of the vertical image are referred to as the operation frame 21b. The base frame 21 a extends substantially in parallel along the moving handrail 11. When the apparatus 10 is used, the movable frame 22 extends substantially parallel to the base frame 21a, and one end of the movable frame 22 is rotatably supported by the operation frame 21b.

  When the handrail cleaning device 10 is used, the base frame 21 a is positioned below the moving handrail 11 and has a function of receiving the moving handrail 11. The movable frame 22 is located on the upper side of the moving handrail 11 and can approach the base frame 21a. When the movable frame 22 approaches the base frame 21a, the brush 13 supported by the movable frame 22 fits into the concave width of the canvas surface 12 and abuts against the canvas surface 12. At this time, when the brush 13 is rotated, the abrasion powder adhering to the canvas surface 12 is removed.

  A portion close to a vertical image from the bent portion of the fixed frame 21 is bent upward of the canvas surface 12. The portion closer to the vertical image than the bent portion and the portion including the vertical image are the operation frame 21b. The vertical portion of the operation frame 21b has a sufficient length for the base frame 21a to be positioned on both sides in the width direction of the moving handrail 11. This vertical section is a portion that is gripped by a worker to work. The operation frame 21b has a switch 15 for turning on / off a motor 14 described later. The switch 15 is provided at a position where an operator holds the switch. This switch 15 is an automatic return type push button type. That is, when the switch 15 is pressed, the motor 14 is turned on, and when the switch 15 is released, the motor 14 is turned off. Therefore, when the worker grips the operation frame 21b, the switch 15 is pressed and the motor 14 rotates. When the operation frame 21b is released, the switch 15 is also released and the motor 14 is stopped.

  The base frame 21a has a square cross section, for example, and has a pair of rod-shaped arms. The base frame 21 a is located below the moving handrail 11 and extends substantially in parallel along the moving handrail 11.

  A conforming roller 24 is provided on the frame 20. The alignment rollers 24 are provided at two positions on each side so as to protrude outward from both outer surfaces of the frame 20 in the width direction of the moving handrail 11. The alignment roller 24 is rotatably supported by, for example, the lower end of the foundation frame 21a and the vicinity of the bent portion. The outer peripheral portion of the rolling roller 24 projects outward from the outer surface of the basic frame 21 a, that is, the outer surface of the frame 20. Usually, when the moving handrail 11 is cleaned, the inner plate (not shown) of the escalator is in the vicinity of the side surface of the handrail cleaning device 10. At this time, the conforming roller 24 contacts the inner plate before the frame 20 contacts the inner plate. Further, since the conforming roller 24 rotates along the inner plate, the handrail cleaning device 10 can be moved smoothly along the moving handrail 11.

  The base frame 21 a is provided with two receiving rollers 23 that receive the moving handrail 11. The receiving roller 23 is located between the pair of arms of the basic frame 21 a and is located at a predetermined interval substantially parallel to the width direction of the moving handrail 11. The receiving roller 23 is rotatably supported at both ends by the basic frame 21a. Thereby, the receiving roller 23 can receive the moving handrail 11 on this upper part. Moreover, since the receiving roller 23 receives the moving handrail 11 and can rotate, the handrail cleaning apparatus 10 can move smoothly along the moving handrail. And the receiving roller 23 has a function which can be attached or detached with respect to the basic frame 21a. Thereby, the handrail cleaning apparatus 10 can be attached to and removed from the moving handrail 11.

  The movable frame 22 has a square cross section, for example, and has a pair of rod-shaped arms. One end of the movable frame 22 is rotatably supported by the portion of the operation frame 21b. The supported operation frame 21b can be rotated as a fulcrum, and the tip thereof can move in the vertical direction with respect to the canvas surface 12. The movable frame 22 has such a length that the tips of the movable frame 22 and the basic frame 21a are at the same position when the movable frame 22 is substantially parallel to the basic frame 21a.

  On the movable frame 22, the drive unit base 16, the idler shaft 25, and the brush 13 are arranged at a predetermined interval.

  The drive unit base 16 has a plate shape, and both ends thereof are provided on the upper surface of the movable frame 22. A motor 14 that rotationally drives the brush 13 and a gear head 17 that adjusts the rotational torque of the motor 14 are provided on the upper surface of the drive unit base 16. The motor 14 and the gear head 17 are connected by a rotating shaft (not shown) of the motor 14. A sprocket 30 a is attached to the end of the output shaft (not shown) of the gear head 17. The sprocket 30 a can rotate in synchronization with the output shaft of the gear head 17. The same chain 31a is wound around the sprocket 30a and a sprocket 30b described later. Thereby, the driving force of the motor 14 is transmitted to the sprocket 30b.

  The idler shaft 25 is an axis substantially parallel to the width direction of the moving handrail 11. The idler shaft 25 is rotatably supported by the movable frame 22 on both sides. A sprocket 30 b is attached to an intermediate portion of the idler shaft 25. The sprocket 30b can rotate in synchronization with the idler shaft 25. Both ends of the idler shaft 25 penetrate the movable frame 22 and extend outward. Sprockets 30 c are attached to both ends of the idler shaft 25. The sprocket 30c can rotate in synchronization with the idler shaft 25. The same chain 31b is wound around the sprocket 30c and a sprocket 30d described later. Thereby, the driving force transmitted to the sprocket 30b is transmitted to the sprocket 30d via the idler shaft 25.

  The brush 13 has a cylindrical shape and is fitted into the concave width of the canvas surface 12. The brush 13 is made of nylon or metal, for example. The brush 13 has a brush shaft 13 a that rotates substantially parallel to the width direction of the moving handrail 11. The brush shaft 13a is rotatably supported by the movable frame 22 on both sides. Both ends of the brush shaft 13a penetrate the movable frame 22 and extend outward. Sprockets 30d are attached to both ends of the brush shaft 13a. The sprocket 30d can rotate in synchronization with the brush shaft 13a. The driving force transmitted to the sprocket 30d is transmitted to the brush 13 via the brush shaft 13a. The brush 13 is rotated by the driving force. Therefore, the brush 13 can remove the abrasion powder adhering to the canvas surface 12. When the brush 13 is in contact with the canvas surface 12, the brush 13 can move only in the direction along the moving handrail 11. Therefore, the handrail cleaning device 10 can move smoothly along the moving handrail 11.

  Metal fittings 32 are attached to the tips of the base frame 21a and the movable frame 22, respectively. The metal fitting 32 is a metal fitting for hanging the spring 33. The spring 33 is a member having tensile elastic characteristics. When the spring 33 is stretched around the metal fitting 32 of the base frame 21a and the movable frame 22, the base frame 21a and the movable frame 22 are biased in the approaching direction. At this time, since the receiving roller 23 supported by the base frame 21a receives the moving handrail 11, the brush 13 supported by the movable frame 22 presses the canvas surface 12 with a predetermined pressure across the moving handrail 11. .

  A nozzle (not shown) for attaching a hose of a vacuum cleaner is provided on the lower surface of the drive unit base 16. The nozzle is in a position where the brush can suck the abrasion powder removed from the canvas surface.

  Next, the operation of the handrail cleaning device 10 will be described. Cleaning of the moving handrail 11 by the handrail cleaning device 10 is performed as part of the escalator maintenance work. That is, the escalator is stopped and the moving handrail 11 is cleaned.

  The moving handrail 11 is removed from the handrail guide rail (not shown) and is slackened to the inner plate (not shown) side of the balustrade. The handrail cleaning device 10 is attached to the moving handrail 11 with the canvas surface 12 facing upward. More specifically, the receiving roller 23 is removed from the basic frame 21 a, and the handrail cleaning device 10 is placed on the moving handrail 11 so that the brush 13 fits into the concave width of the canvas surface 12. Then, the receiving roller 23 is attached to the foundation frame 21a, and a spring 33 is wound around the metal fitting 32 between the movable frame 22 and the foundation frame 21a. Thereby, the movable frame 22 and the basic frame 21a are urged so as to approach each other. That is, since the receiving roller 23 receives the moving handrail 11, the brush 13 presses the canvas surface 12 with a predetermined pressure across the moving handrail 11.

  When the worker grips the operation frame 21b, the switch 15 provided in the gripping portion is pressed, and the motor 14 rotates. The driving force of the rotated motor 14 is transmitted to the coaxial sprocket 30 a via the gear head 17 and the rotation shaft of the gear head 17. The driving force is transmitted to the sprocket 30b via the chain 31a, and further transmitted to the sprocket 30c via the idler shaft 25. Thereafter, the driving force is transmitted to the sprocket 30d through the chain 31b and further transmitted to the brush 13 through the brush shaft 13a. As a result, the brush 13 that presses the canvas surface 12 can rotate to remove the wear powder adhering or adhering to the canvas surface 12. The abrasion powder removed by the brush 13 is sucked by the nozzle.

  The handrail cleaning device 10 fits the brush 13 into the concave width of the canvas surface 12 and sandwiches the moving handrail 11 from above and below. That is, the brush 13 can move only in the direction along the moving handrail 11. Therefore, the handrail cleaning device 10 can move along the moving handrail 11.

  The worker loosens the moving handrail 11 on the inner plate (not shown) side of the escalator and works in the vicinity thereof. At this time, the alignment roller 24 contacts the inner plate and rotates along the inner plate. Therefore, the handrail cleaning device 10 can move smoothly without damaging the inner plate.

  As described above, according to the handrail cleaning device 10 according to the first embodiment, it is possible to evenly clean the canvas surface 12 by one worker, and the wear powder partially fixed to the canvas surface 12 is focused. It can also be cleaned. Further, since the brush 13 presses uniformly against the canvas surface 12, it only needs to move along the moving handrail 11.

  Next, another embodiment (referred to as a second embodiment) according to the present invention will be described with reference to the drawings. FIG. 2 is a side view illustrating a schematic configuration of the handrail cleaning device according to the second embodiment. FIG. 3 is a rear view showing a schematic configuration of the handrail cleaning device of FIG. The handrail cleaning device 10 of the second embodiment is used in a state where the canvas surface 12 is the upper surface, like the handrail cleaning device 10 of the first embodiment.

  The handrail cleaning device 10 includes a brush 13 and a frame 20 that supports the brush 13. The brush 13 abuts on the canvas surface 12 and removes wear powder adhering to the canvas surface 12. The frame 20 includes a fixed frame 21, a main frame 26 that supports the brush 13 and is connected to the fixed frame 21, and an attached frame 27 that is connected to the fixed frame 21.

  As shown in FIG. 3, the fixed frame 21 is substantially U-shaped when viewed from the back, and includes a body portion corresponding to a vertical image of U-shape and a leg portion corresponding to a horizontal image. It has a protruding portion that protrudes in the opposite direction from the leg portion from the middle portion of the body portion. Hereinafter, the U-shaped portion is referred to as a basic frame 21a, and the protruding portion is referred to as an operation frame 21b. The trunk portion of the base frame 21a is positioned substantially parallel above the canvas surface 12 when the apparatus 10 is used. The leg portions of the base frame 21 a are perpendicular to the canvas surface 12, and their tips are located on both sides in the width direction of the movable handrail 11. The attached frame 27 is connected to the legs of the basic frame 21a. The main frame 26 extends substantially parallel to the canvas surface 12 when the apparatus 10 is used, and one end thereof is connected to the base frame 21a.

  The basic frame 21 a has a pressing roller 28. Since the pressing roller 28 fits into the concave width of the canvas surface 12, the apparatus 10 can be moved along the moving handrail 11. The main frame 26 is located above the canvas surface 12. When the operation frame 21 b is tilted toward the moving handrail 11, the tip of the main frame 26 moves toward the moving handrail 11 with the pressing roller 28 as a fulcrum. Then, the brush 13 supported by the main frame 26 contacts the canvas surface 12. At this time, when the brush 13 is rotated, the abrasion powder adhering to the canvas surface 12 is removed.

  The pressing roller 28 has a cylindrical shape and is fitted in the width direction of the concave shape of the canvas surface 12. The pressing roller 28 has a pressing roller shaft 28 a that rotates substantially parallel to the width direction of the moving handrail 11. The pressing roller shaft 28a is rotatably supported by the base frame 21a at both ends. Thereby, when the pressing roller 28 is in contact with the canvas surface 12, the pressing roller 28 can rotate and move only in the direction along the moving handrail 11. That is, the handrail cleaning device 10 can move only in the direction along the moving handrail 11.

  The attached frame 27 is provided with a receiving roller 23 that receives the moving handrail 11. The receiving roller 23 has a receiving roller shaft 27 a that rotates substantially parallel to the width direction of the moving handrail 11. The receiving roller 23 is rotatably supported by the attached frame 27 at both ends. Thereby, the receiving roller 23 can receive the moving handrail 11 on this upper part. Further, since the receiving roller 23 can rotate by receiving the moving handrail 11, the handrail cleaning device 10 can move smoothly along the moving handrail 11. The receiving roller 23 has a function that can be attached to and detached from the attached frame 27. Thereby, the handrail cleaning apparatus 10 can be attached to and removed from the moving handrail 11. The receiving roller 23 is positioned so as to sandwich the moving handrail 11 with respect to the pressing roller 28. Thereby, the receiving roller 23 can prevent the pressing roller 28 from separating from the canvas surface 12, and can maintain a state where the pressing roller 28 is in contact with the canvas surface 28. That is, the handrail cleaning device 10 can reliably move only in the direction along the moving handrail 11.

  The operation frame 21b is a part that is gripped by a worker for working. The operation frame 21b has a switch 15 for turning on / off a motor (not shown). The switch 15 is provided at a position where an operator holds the switch. This switch 15 is an automatic return type push button type. That is, when the switch 15 is pressed, the motor is turned on, and when the switch 15 is released, the motor is turned off. Therefore, when the worker grips the operation frame 21b, the switch 15 is pressed and the motor rotates. When the operation frame 21b is released, the switch 15 is also released and the motor is stopped.

  A conforming roller 24 is provided on the frame 20. The alignment rollers 24 are provided so as to protrude outward from both outer side surfaces of the frame 20 in the width direction of the moving handrail 11. The alignment roller 24 is rotatably supported at the lower part of the attached frame 27, for example. The outer peripheral portion of the alignment roller 24 protrudes outward from the outer surface of the attached frame 21 a, that is, the outer surface of the frame 20. Usually, when the moving handrail 11 is cleaned, the inner plate (not shown) of the escalator is in the vicinity of the side surface of the handrail cleaning device 10. At this time, the conforming roller 24 contacts the inner plate before the frame 20 contacts the inner plate. Moreover, since the alignment roller 24 rotates along the inner plate, the handrail cleaning device 10 can move smoothly along the moving handrail 11.

  The main frame 26 has a square cross section, for example, and has a pair of rod-shaped arms. One end of the main frame 26 is connected to the base frame 21a. The main frame is bent toward the moving handrail 11 on the way, for example. On the main frame 26, the drive unit base 16 and the brush 13 are arranged at a predetermined interval.

  The drive unit base 16 has a plate shape, and both ends thereof are provided on the upper surface of the main frame 26. A motor (not shown) for rotating the brush 13 and a gear head 17 for adjusting the rotational torque of the motor are provided on the upper surface of the drive unit base 16. The motor and the gear head 17 are connected by a rotating shaft of the motor. A sprocket 30 a is attached to the end of the output shaft (not shown) of the gear head 17. The sprocket 30 a can rotate in synchronization with the output shaft of the gear head 17. The same chain 31 is wound around the sprocket 30a and a sprocket 30b described later. Thereby, the driving force of the motor 14 is transmitted to the sprocket 30b.

  The brush 13 has a cylindrical shape, for example, and is fitted into the concave width of the canvas surface 12. The brush 13 has a brush shaft 13 a that rotates substantially parallel to the width direction of the moving handrail 11. The brush shaft 13a is rotatably supported by the main frame 26 on both sides. One end of the brush shaft 13a passes through the main frame 26 and extends outward. A sprocket 30b is attached to this one end portion. The sprocket 30d can rotate in synchronization with the brush shaft 13a. The driving force transmitted to the sprocket 30b is transmitted to the brush 13 via the brush shaft 13a. The brush 13 is rotated by the driving force. Therefore, the brush 13 can remove the abrasion powder adhering to the canvas surface 12.

  In the second embodiment, the brush 13 has a cylindrical shape. However, any other shape may be used as long as the abrasion powder adhering to the canvas surface 12 can be removed. For example, the brush 13 may have a disk shape having a rotation axis in a direction perpendicular to the canvas surface 12.

  In the present embodiment, the brush 13 has a shape that fits into the width of the concave shape of the canvas surface 12. However, any other shape can be used as long as the width of the concave shape of the canvas surface 12 can be contacted uniformly. May be used. For example, a plurality of brushes shorter than the concave shape width of the canvas surface 12 may be arranged so that the width direction of the concave shape of the canvas surface 12 can be contacted uniformly.

  A nozzle 34 for attaching a hose of a vacuum cleaner is provided at the front end of the handrail cleaning device 10. The nozzle 34 can suck the abrasion powder removed by the brush 13 from the canvas surface 12.

  Next, the operation of the handrail cleaning device 10 will be described. The handrail cleaning device 10 is attached to the moving handrail 11 with the canvas surface 12 facing upward. More specifically, the receiving roller 23 is removed from the basic frame 21 a, and the handrail cleaning device 10 is placed on the moving handrail 11 so that the pressing roller 28 fits into the concave width of the canvas surface 12. Then, the receiving roller 23 is attached to the basic frame 21a. Thereby, the handrail cleaning apparatus 10 can pinch the moving handrail 11 from the up-down direction. Further, it is possible to maintain a state where the pressing roller 28 is in contact with the canvas surface 28. That is, the handrail cleaning device 10 can reliably move only in the direction along the moving handrail 11.

  Further, the handrail cleaning device 10 can move the brush 13 in the vertical direction with respect to the canvas surface 12 with the pressing roller 28 and the receiving roller 23 sandwiching the moving handrail 11 as fulcrums. That is, when the operation frame 21 b is tilted toward the moving handrail 11, the brush 13 comes into contact with the canvas surface 12. When the operation frame 21 b is further inclined toward the moving handrail 11, the brush 13 presses the canvas surface 12.

  When the worker grips the operation frame 21b, the switch 15 provided in the gripping portion is pushed, and the motor rotates. The driving force of the rotated motor is transmitted to the coaxial sprocket 30 a via the gear head 17 and the rotation shaft of the gear head 17. The driving force is transmitted to the sprocket 30b via the chain 31, and further transmitted to the brush 13 via the brush shaft 13a. As a result, the brush 13 that presses the canvas surface 12 can rotate to remove the wear powder adhering or adhering to the canvas surface 12. The abrasion powder removed by the brush 13 is sucked by the nozzle.

  The worker loosens the moving handrail 11 on the inner plate (not shown) side of the escalator and works in the vicinity thereof. At this time, the alignment roller 24 contacts the inner plate and rotates along the inner plate. Therefore, the handrail cleaning device 10 can move smoothly without damaging the inner plate.

  As described above, according to the handrail cleaning device 10 according to the second embodiment, it is possible to clean the canvas surface 12 by one worker alone, and the wear powder partially adhered to the canvas surface 12 is focused. It can also be cleaned.

It is a perspective view which shows schematic structure in the handrail cleaning apparatus of the escalator which concerns on embodiment of this invention. It is a side view which shows schematic structure in the handrail cleaning apparatus of the escalator which concerns on another embodiment of this invention. It is a rear view which shows schematic structure in the handrail cleaning apparatus of the escalator which concerns on another embodiment of this invention. It is a figure which shows schematic structure of the conventional handrail cleaning apparatus and escalator.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Handrail cleaning device, 11 Moving handrail, 12 Canvas surface, 13 Brush, 14 Motor, 15 Switch, 16 Drive base, 17 Gear head, 20 Frame, 21 Fixed frame, 22 Movable frame, 23 Receiving roller, 24 Fitting roller, 25 idler shaft, 26, main frame, 27, attached frame, 28 holding roller, 30 sprocket, 31 chain, 32 metal fittings, 33 spring, 34 nozzle, 50 escalator, 51 moving handrail, 52 handrail drive sheave, 53 handrail tensioning device, 54 pressure roller, 55 vacuum cleaner, 56 handrail cleaning device, 57 hose.

Claims (9)

In the handrail cleaning device for portable escalators for cleaning the canvas surface which is the bottom surface of the concave back surface of the moving handrail of the escalator,
A brush part for cleaning the canvas surface of the moving handrail,
A drive unit for rotationally driving the brush unit;
Guidance means for guiding the handrail cleaning device to move along the moving handrail;
An escalator handrail cleaning device characterized by comprising: In the handrail cleaning device of the escalator according to claim 1,
The guide means has a first rotating member that rotates on the canvas surface;
The first rotating member guides the handrail cleaning device by having a shape that fits into the concave width of the back surface of the moving handrail.
The handrail cleaning apparatus of the escalator characterized by the above-mentioned. In the handrail cleaning device of the escalator according to claim 2,
The guide means includes a second rotating member that sandwiches a moving handrail together with the first rotating member and rotates the surface of the moving handrail.
The handrail cleaning apparatus of the escalator characterized by the above-mentioned. In the handrail cleaning device of the escalator according to claim 3,
The brush portion has a cylindrical shape having an axis substantially parallel to the canvas surface,
This brush portion is the first rotating member.
The handrail cleaning apparatus of the escalator characterized by the above-mentioned. In the handrail cleaning device of the escalator according to claim 3 or 4,
A pair of first arms located on both sides in the width direction of the moving handrail and supporting the first rotating member;
A pair of second arms located on both sides in the width direction of the moving handrail and supporting the second rotating member;
Spring means for urging the first arm and the second arm toward each other and pressing the first rotating member against the canvas surface;
An escalator handrail cleaning device characterized by comprising: In the handrail cleaning device of the escalator according to claim 3,
A grip portion for manually pressing the brush portion against the canvas surface;
When a force is applied to the grip portion, a pressing force that presses the canvas surface acts on the brush portion with the first rotating member and the second rotating member holding the moving handrail as fulcrums,
The handrail cleaning apparatus of the escalator characterized by the above-mentioned. In the handrail cleaning device of the escalator according to claim 6,
The brush portion has a cylindrical shape having an axis substantially parallel to the canvas surface.
The handrail cleaning apparatus of the escalator characterized by the above-mentioned. In the handrail cleaning apparatus of the escalator of any one of Claim 1 to 7,
There is a side guard on the side of the handrail cleaning device,
This side guard part contacts the inner plate of the escalator when the handrail cleaning device moves along the moving handrail, and prevents contact with the inner plate of the handrail cleaning device body.
The handrail cleaning apparatus of the escalator characterized by the above-mentioned. In the handrail cleaning device of the escalator according to any one of claims 1 to 8,
The brush portion has a nozzle for sucking a removed material generated by cleaning the canvas surface;
The handrail cleaning apparatus of the escalator characterized by the above-mentioned.

Images