JP2006290475A - Moving handrail inside surface cleaning device for passenger conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a moving handrail inside surface cleaning device for a passenger conveyor capable of efficiently cleaning the inside surface of a moving handrail of a passenger conveyor such as an escalator and a moving sidewalk. <P>SOLUTION: This moving handrail inside surface cleaning device for a passenger conveyor is provided with a rotating cleaner 3 for a flat part such as a rotating brush provided to rotate, abutting on a flat part of the inside surface of the moving handrail 1, a first rotating cleaner 4 for a curved part such as a rotating brush provided to rotate, abutting on one curved part, a second rotating cleaner 5 for a curved part such as a rotating brush to be rotated in a direction opposite to the first rotating cleaner for a curved part, abutting on the other curved part, and a driving means 6 for driving the rotating cleaner for a flat part and the first and the second rotating cleaners for a curved part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a moving handrail inner surface cleaning device for a man conveyor used for cleaning an inner surface of a moving handrail attached to a man conveyor such as an escalator or a moving walkway.

  Moving handrails on man conveyors such as escalators and moving walkways have a substantially C-shaped cross section (consisting of a flat portion at the center and curved portions formed opposite to each other), and are endless in the longitudinal direction. Has been. The moving handrail is restrained in a plane perpendicular to the moving direction by a steel or resin handrail guide rail having a substantially T-shaped cross-section, while being moved to a handrail driving roller and a pressure roller provided at a predetermined portion below the deck portion. A flat part is inserted | pinched, it drives to a longitudinal direction by friction, and is circulated. The handrail drive roller is rotated from a treadle drive source via a chain or the like.

  Due to friction with handrail guide rails, etc. during long-time operation, a) wear powder generated on the inner campus surface of the moving handrail, b) wear powder on the handrail guide rail, c) dust in the truss, d) tread When oil or the like dripping from the driving chain adheres to the inside of the moving handrail, the frictional force between the flat portion of the moving handrail and the handrail driving roller decreases, and slip occurs between them. As a result, the operation of the footboard and the moving handrail is displaced, which is very dangerous for the passenger. Moreover, since the foreign material adhering to the inner surface of a moving handrail falls to the tread board side and may stain a passenger's clothes, it is necessary to clean not only a flat part but a curved part regularly. For this reason, the moving handrail inner surface cleaning apparatus which can clean the inner surface of a moving handrail easily was calculated | required.

In order to solve such a problem, the following moving handrail inner surface cleaning apparatus has been proposed.
1) The contact state between the cleaning brush and the inner surface of the moving handrail is switched with a brush fixing bolt (see, for example, Patent Document 1).
The fixing position of the cleaning brush fixing bolt is changed, and the cleaning brush and the inner surface of the moving handrail are brought into contact with each other only when cleaning is performed. This prevents problems such as scratching the inner surface of the moving handrail and shortening the life of the cleaning brush when the cleaning brush is always in contact even if the cleaning jig for the moving handrail is permanently installed. Preparation / cleanup work is reduced.

2) The contact state between the cleaning brush and the inner surface of the moving handrail is switched by a coil spring, an electromagnetic coil, or the like (see, for example, Patent Document 2).
Using a coil spring, the cleaning brush is normally in a non-contact state, which is on the safe side, energizes the electromagnetic coil during cleaning, and the cleaning brush is moved only when cleaning by moving the cleaning brush downward against the coil spring. It can be brought into contact with the inner surface of the moving handrail.

3) What cleans a flat part and a curved part with two types of cleaning brushes (for example, refer patent document 3).
It has independent cleaning brushes for the flat portion and the curved portion, respectively, and can clean the entire inner surface of the moving handrail. The curved portion cleaning brush is coupled to a brush support arm that can be rotated in the width direction of the moving handrail. When the moving handrail inner surface cleaning device is inserted into the moving handrail, the support arm rotates passively, from the opening of the moving handrail. In addition, the curved portion cleaning brush can be placed in contact with the wide inner curved portion.

JP 05-246679 A (second page, FIG. 2) Japanese Patent Laid-Open No. 10-007368 (page 3, FIG. 4) Japanese Patent No. 3081107 (second page, FIG. 2, FIG. 3)

・ About the cleaning jig of 1) above
Since the fixing bolt of the cleaning brush is changed before and after cleaning, it is necessary to remove a structure such as a panel in the vicinity of the moving handrail inner surface cleaning device before cleaning, and the cleaning efficiency of the moving handrail is poor. In addition, if you forget to remove the cleaning brush and the inner surface of the moving handrail in a non-contact state after changing the fixing screw, the non-contact state will be changed unless the panel is removed during normal operation. Since it cannot be confirmed, problems such as damage to the inner surface of the moving handrail caused by constant contact of the cleaning brush and shortening of the life of the cleaning brush may occur. Moreover, the curved inner surface of the moving handrail cannot be cleaned.

・ About the cleaning device of 2) above
The combined use of the coil spring and the electromagnetic coil enables the operation / contact state of the moving handrail inner surface cleaning device to be confirmed only by turning on / off the electromagnetic coil power supply, so that the problem of work efficiency of the above 1) does not occur. However, the inner surface of the curved portion of the moving handrail cannot be cleaned. Further, in order to make the cleaning brush and the inner surface of the moving handrail completely in a non-contact state, the upper and lower vibrations during the operation of the moving handrail are taken into consideration, for example about 5 mm above the contact state of the cleaning brush during cleaning. It is necessary to arrange a cleaning brush. Therefore, an electromagnetic coil with a long operation stroke is required. Since the attractive force of the electromagnetic coil is inversely proportional to the square of the stroke, the electromagnetic coil that can be used for the vertical movement of the cleaning brush is large in both size and power consumption. In addition, a guide mechanism for restraining the movement in the vertical direction is required, resulting in an increase in the size of the apparatus.

・ About the cleaning device of 3) above
(A) When installing a moving handrail inner surface cleaning device only during cleaning,
It is necessary to remove a structure such as a panel in the vicinity of the installation location of the moving handrail inner surface cleaning device, and the cleaning efficiency of the moving handrail is poor as in 1).
(B) When installing a moving handrail inner surface cleaning device permanently,
Since the cleaning brush always contacts the inner surface of the moving handrail, various problems may occur due to the constant contact of the cleaning brush. Here, it is conceivable to apply the method 1) or 2) to realize a contact / non-contact state, but the problems occurring in 1) and 2) are also inherited.

  The present invention has been made to solve the above-described problems of the prior art, 1) the curved portion can be cleaned at the same time, and 2) the movable handrail inner surface cleaning device can be permanently installed (preparation before cleaning) It is intended to obtain a moving handrail inner surface cleaning device for a man conveyor that can significantly reduce the rear-cleaning) and 3) can solve the problems caused by the constant contact of the cleaning brush.

  The moving handrail inner surface cleaning device for a man conveyor according to the present invention includes a rotary cleaning element for a flat portion provided so as to rotate in contact with a flat portion of the inner surface of the moving handrail, and two opposing curved portions on the inner surface of the moving handrail. Of these, the first bending portion rotary cleaner provided so as to rotate in contact with one bending portion and the first bending portion rotary cleaner in contact with the other bending portion are mutually connected. A second rotary cleaner for the curved portion provided to rotate in the opposite direction, and a driving means for rotating the rotary cleaner for the flat portion and the first and second rotary cleaners for the curved portion. It is intended to provide.

  According to the present invention, it is possible to simultaneously clean not only the flat portion of the moving handrail but also the curved portion in the cleaning operation of the inner surface of the moving handrail that requires regular maintenance. In addition, using a rotary cleaning element such as a rotating brush and rotating the rotary cleaning element passively during normal operation without cleaning, the problem that has occurred due to the constant contact between the rotary cleaning element and the inner surface of the handrail is moved with the rotary cleaning element. This can be solved without a mechanism for changing the contact state with the handrail. In addition, the moving handrail inner surface cleaning device can be permanently installed in man conveyors such as escalators and moving walkways, so preparations and rearranging such as attaching and detaching the moving handrail and attaching the inner surface cleaning device are greatly reduced and maintained. Work efficiency can be realized.

Embodiment 1 FIG.
FIGS. 1-6 is a figure explaining the moving handrail inner surface cleaning apparatus of the man conveyor by Embodiment 1 of this invention, FIG. 1 is a perspective view which shows the principal part, FIG. 2 is a flat part with respect to the flat part of a moving handrail. FIG. 3 is a sectional view showing the arrangement of the first and second curved rotary cleaners with respect to the curved portion of the moving handrail, and FIG. 4 is a transmission for rotating the cleaning rotary brush. FIG. 5 is a side view of the main part of the transmission mechanism shown in FIG. 4, and FIG. 6 is an overall configuration conceptually showing an example in which the movable handrail inner surface cleaning device shown in FIG. 1 is installed inside the escalator. FIG. In FIG. 1, the moving handrail is partially broken for easy understanding of the structure. The same reference numerals denote the same or corresponding parts throughout the drawings.

  In the figure, a moving handrail 1 having a substantially C-shaped cross section has a flat portion 1a formed at the center and two curved portions 1b and 1c formed opposite to both sides, and is arranged in the longitudinal direction. It is formed in an endless shape. The cleaning element for cleaning these three portions of the flat portion 1a and the curved portions 1b and 1c is composed of a drum-shaped rotating brush, and is one flat portion provided so that the tip portion of the brush 31 is in contact with the flat portion 1a. The rotary cleaner 3 for a part and the disk-shaped rotary brush are provided, and the first and first brushes 41 or the brush 51 are provided so that the tip of the brush 41 or the brush 51 comes into contact with one of the curved portions 1b or the other curved portion 1c. 2 rotary cleaners 4 and 5 for the curved portion. Hereinafter, for convenience, these rotary cleaning elements 3, 4, and 5 are collectively referred to as “cleaning rotary brush 2”. Here, the moving handrail 1 is supported by a handrail receiving roller 11. Further, the foreign matter removed from the inner surface of the moving handrail 1 by the cleaning rotary brush 2 is sucked and removed by the vacuum cleaner 12 (12a or 12b in FIG. 6) through the air inlet 9.

  In the first embodiment, a rotary drive motor 60 having a variable rotation direction is used as the drive means 6 of the cleaning rotary brush 2. For example, the rotary drive motor 60 is rotated counterclockwise as indicated by an arrow D (FIG. 4). When rotated, the rotational force of the pulley 62 fixed to the output shaft 61 is transmitted via the timing belt 71 to the pulley 43 fixed to the rotating shaft 40 of the first curved portion rotary cleaner 4, The brush 41 provided radially at the tip of the rotating shaft 40 is rotated in the counterclockwise direction indicated by the arrow A. In addition to the pulley 43, a gear 44 is coaxially fixed to the rotary shaft 40 of the first curved portion rotary cleaning element 4, and this gear 44 is similar to the rotary shaft 50 of the second curved portion rotary cleaner 5. Engaged with a fixed gear 54 having the same number of teeth, the second curved portion rotary cleaner 5 is rotated in the clockwise direction indicated by arrow B. The tooth portions of the gears 44 and 54 are not shown.

  Further, a pulley 53 is coaxially fixed to the rotary shaft 50 of the second curved portion rotary cleaner 5 and is wound between the pulley 53 and a pulley 81 fixed to the input shaft 80 of the gear box 8. The rotation of the rotational drive motor 60 is transmitted to the input shaft 80 of the gear box 8 by the timing belt 72. A pulley 83 is fixed to the horizontal output shaft 82 of the gear box 8 and is wound between the pulley 83 and the pulley 32 fixed to the rotating shaft 30 of the rotary cleaning element 3 for the flat portion. The flat portion rotary cleaner 3 is rotated in the clockwise direction indicated by the arrow E by the timing belt 73. The gear configuration in the gear box 8 is such that when the rotary drive motor 60 rotates counterclockwise as indicated by arrow D, the flat portion rotary cleaner 3 rotates in the clockwise direction indicated by arrow E in FIG. It is configured.

  The movable handrail inner surface cleaning device 10 includes a cleaning rotary brush 2 composed of the three rotary cleaners 3, 4 and 5, a rotation drive motor 60, pulleys 62, 43, 53, 81, 83 and 32, a gear 44, And 54, timing belts 71, 72 and 73, a gear box 8, an intake port 9, and the like. The bearings of the cleaning rotary brush 2, the fixing means for the rotation drive motor 60 and the gear box 8, and the like are not shown. As shown in FIG. 6, the movable handrail inner surface cleaning device 10 is disposed, for example, at the upper part (10a) or the lower part (10b) of the escalator, and has an intake port 9 (not shown in FIG. 6) and a vacuum cleaner 12 (12a). Or 12b) is connected by a suction hose 13 (13a or 13b). In FIG. 6, two upper and lower positions are illustrated, but any one position may be used.

  The moving handrail 1 is sandwiched between a plurality of handrail driving rollers 14 and a plurality of pressure rollers 15 disposed to face the handrail driving rollers 14 and is driven by friction. Thus, the movable handrail inner surface cleaning device 10 can be installed anywhere as long as it is a straight line portion deviated from these arrangement positions. In FIG. 6, the installation example in the case where the vacuum cleaner 12 is arrange | positioned in the upper part and the case where it arrange | positions in the lower part is shown. When arranged on the upper part, the moving handrail inner surface cleaning device 10a is arranged immediately below the handrail driving roller 14 and the pressure roller 15, and the suction hose 13a is arranged and fixed so as not to come into contact therewith. (Not shown) is connected to the vacuum cleaner 12a. On the other hand, when arrange | positioning in the lower part, the hose 13b for suction from the moving handrail inner surface cleaning apparatus 10b is connected to the vacuum cleaner 12b from a lower manhole part (illustration omitted). The vacuum cleaner 12 (12a, 12b) may be provided in an empty space in the upper or lower manhole or may be brought in from the outside during maintenance.

  Next, the operation of the first embodiment configured as described above will be described. First, a description will be given of a case where cleaning is performed when the moving handrail 1 is moving from left to right as indicated by an arrow C in FIGS. 4 and 5 (the operation direction of the escalator is, for example, Down). The flat part rotary cleaning element 3 and the first and second curved part rotary cleaning elements 4 and 5 that constitute the cleaning rotary brush 2 are all arranged in the moving direction of the movable handrail 1 in order to improve the cleaning efficiency. Rotate in the opposite direction. In this case, the rotational drive motor 60 is rotated counterclockwise (CCW) as indicated by an arrow D in the figure. In this case, the rotation direction of the brushes 41 and 51 provided at the distal ends of the first and second bending portion rotary cleaners 4 and 5 is in a direction that opposes the moving direction of the inner surfaces of the bending portions 1b and 1c. As shown in the arrow E, the brush 31 of the rotary cleaning element 3 for the flat part rotates in a direction that opposes the moving direction of the flat part 1a, so that dust on the inner surface of the moving handrail 1 is efficiently removed. it can. The dust removed from the inner surface of the moving handrail 1 is sucked and removed from the air inlet 9 by the vacuum cleaner 12 (12a, 12b).

  Next, the case where cleaning is stopped when the moving handrail 1 is moving in the direction indicated by the arrow C will be described. In this case, a switch (not shown) of the rotary drive motor 60 is turned off. Then, the output shaft 61 of the rotary drive motor 60 is in a free state, and the brush 31 of the flat part rotary cleaner 3 and the brushes 41 and 51 of the first and second curved part rotary cleaners 4 and 5 are at the tip. Since each part is in contact with the inner surface of the moving handrail 1, the flat part rotary cleaner 3 and the first and second curved part rotary cleaners 4, 5 are caused by friction with the inner surface of the moving handrail 1. Is passively rotated according to the moving speed of the moving handrail 1 in the opposite direction to that during cleaning. That is, in FIGS. 4 and 5, all of the arrows A, B, D, and E rotate in the reverse direction. For this reason, excessive force is not applied to the inner surfaces of the rotary cleaning elements 3, 4, 5 and the moving handrail 1, and the moving handrail 1 is prevented from being worn.

  In the case where the moving handrail 1 moves from right to left opposite to the arrow C in FIGS. 4 and 5, when cleaning is performed, the rotation drive motor 60 is rotated in the direction opposite to the above, When each of the rotary cleaning elements 3, 4 and 5 is rotated in the direction against the moving direction of the moving handrail 1 and cleaning is performed in exactly the same manner, and the switch (not shown) of the rotary drive motor 60 is turned off. It is obvious that wear is similarly avoided when each of the rotary cleaning elements 3, 4, 5 is passively rotated in the same direction as the moving direction of the moving handrail 1. It is to be noted that a clutch is installed on the output shaft of the rotary drive motor 60, and when the cleaning is not performed, the rotation connection between the rotation of the rotary drive motor 60 and the rotation of the rotary cleaners 3, 4, and 5 is cut off. It goes without saying that it can be done. In this case, it is not necessary to rotate the rotor of the rotation drive motor 60, so that passive rotation is facilitated.

  The moving handrail 1 is moved in the longitudinal direction while being restrained by a handrail guide rail (not shown) made of, for example, steel or resin having a substantially T-shaped cross section. However, since the handrail guide rail interferes with the cleaning rotary brush 2, the first and second curved portion rotary cleaners 4 are arranged on the T-shaped horizontal surface portion in the vicinity of the flat portion rotary cleaner 3. In the vicinity of 5, openings are provided in the side surfaces of both the left and right sides of the T-shape (not shown). Here, both side surfaces of the substantially T-shaped handrail guide rail have a role of restraining the movement of the movable handrail 1 in the vertical direction. For this reason, a handrail receiving roller 11 (FIG. 1) for supporting the movable handrail 1 in the vertical direction is installed on the escalator side in the vicinity of the installation of the rotary cleaners 4 and 5 for the curved portion having no side portions on both the left and right sides of the handrail guide rail Is done. Thereby, the moving handrail 1 can operate smoothly as in the case where there is a handrail guide rail. Here, even in the left-right direction of the moving handrail 1, the bendable portion of the moving handrail 1 can be reliably cleaned by installing a roller for restraining the left-right position on the escalator side in the vicinity of the rotating cleaning elements 4, 5. it can.

  As described above, according to the first embodiment of the present invention, the flat portion 1a constituting the inner surface of the movable handrail 1 and the curved portions 1b and 1c on both the left and right sides can be simultaneously cleaned by the single rotary drive motor 60, and the cleaning is performed. During normal operation that is not performed, power supply to the rotary drive motor 60 is stopped, and all the cleaning rotary brushes 2 that are in contact with the inner surface of the moving handrail 1 are passively rotated so as to follow the moving direction by frictional force. Therefore, the problem caused by the constant contact of the cleaning brush can be fundamentally solved, and the moving handrail inner surface cleaning device 10 can be always installed inside the escalator, and the preparation for cleaning and the clean-up work are greatly improved. To be reduced. Further, the effects and influences of the first and second curved portion rotary cleaners 4 and 5 on the inner surface of the movable handrail 1 can be made the same between the left and right curved portions 1b and 1c. It is possible to bring all the rotary cleaning elements 3, 4 and 5 into contact with each other in the direction against the operation direction and improve the cleaning ability.

  In the above description, the rotation drive motor 60 uses a motor whose reversing direction is reversible, and the escalator can clean the inner surface of the moving handrail 1 while it is operating in either UP or DOWN direction. It is not a thing. For example, in an operation where the movable handrail inner surface cleaning device 10 is operated only during maintenance, the rotary drive motor 60 is an inexpensive motor that rotates in only one direction, and the operation direction of the escalator capable of cleaning the inner surface of the movable handrail 1 is used for cleaning. The rotation brush 2 may be limited only to the operation in the direction against the moving direction of the moving handrail 1.

  When a rotational drive motor that rotates only in one direction is used, a one-way clutch (not shown) is interposed between the power transmission system of the rotational drive motor 60, for example, between the output shaft 61 of the rotational drive motor 60 and the pulley 62. When the cleaning rotary brush 2 is passively rotated during normal operation in which the power of the rotation drive motor 60 is turned off, the passive rotation of the cleaning rotary brush 2 by the movement of the moving handrail 1 is performed via the timing belt 71. Since the pulley 62 rotates and the output shaft 61 of the rotation drive motor 60 does not rotate by the slip action of the one-way clutch, the resistance of passive rotation is reduced, so that the passive rotation is smooth and the cleaning rotary brush 2 and the wear of the moving handrail 1 can be reduced. Needless to say, when the rotary drive motor 60 is turned on, the one-way clutch is connected and the cleaning rotary brush 2 is actively rotated via the pulley 62 to clean the inner surface of the movable handrail 1.

  Furthermore, in the first embodiment described above, a case has been described in which one rotational drive motor 60 is used as a driving unit and the three cleaning rotary brushes 2 are driven. However, the present invention is not limited to this. For example, the gear box 8 may be omitted by using two driving sources of a motor for cleaning the curved portion and a motor for cleaning the flat portion, or each cleaning rotary brush 2 may be directly connected to each of the three motors and driven individually. A plurality of motors may be used such as omitting a power transmission system such as a belt and a gear. Further, although pulleys, timing belts, gears, and gear boxes are used for the power transmission system, the present invention is not limited to this, and the installation position and transmission path of the rotary drive motor 60 are not limited to those of the first embodiment. It is.

  In the first embodiment, the case where the suction hose 13 is installed inside the escalator has been described. However, the escalator structural material in the vicinity of the movable handrail inner surface cleaning device 10 is removed only during cleaning, and a suction pad or the like is attached to the escalator component. It goes without saying that the same effect can be obtained even if the suction hose 13 (13a or 13b) is routed to the upper or lower part of the escalator and connected to the vacuum cleaner 12 (12a or 12b). .

  Further, the rotary cleaning elements 4 and 5 for the curved portion are engaged with the gears 44 and 54 and rotated in the reverse direction. By replacing them with a pulley, for example, a timing belt, the moving handrail inner surface cleaning device 10 is generated. Sound can be reduced. Furthermore, although the timing belts 71, 72, 73 are used for rotation transmission, they can be manufactured at a lower cost by replacing them with a general V belt, for example. In this case, it is possible to reduce the sound generated when the cleaning rotary brush 2 is passively rotated when cleaning is not performed, and there is an effect that it is difficult for the escalator user to be uncomfortable.

Embodiment 2. FIG.
FIG. 7 is a switch circuit configuration diagram used in the moving handrail inner surface cleaning device of the man conveyor according to the second embodiment of the present invention. Other configurations are the same as those in the first embodiment, and will be described below with reference to FIGS. In the figure, the electromagnetic relay 16 is the main element of the switch circuit. The first changeover switch 16a for switching the escalator Up and Down, and the moving handrail inner surface cleaning device 10 operating in conjunction with the first changeover switch 16a. A second changeover switch 16b that switches the rotation direction of the rotation drive motor 60 is provided. 17 is a power switch of the movable handrail inner surface cleaning device 10 inserted in series with the second changeover switch 16b; C. W. Is the counterclockwise rotation of the rotary drive motor 60 indicated by arrow D in FIG. W. Is a clockwise rotation.

  In the second embodiment configured as described above, the second changeover switch 16b that switches the rotation direction of the rotation drive motor 60 of the movable handrail inner surface cleaning device 10 and the first changeover switch 16a that switches the operation direction of the escalator. , The rotating brush 2 for cleaning is always operated only by turning ON / OFF the power switch 17 of the moving handrail inner surface cleaning device 10 regardless of the direction of the up operation or the down operation of the escalator. The moving handrail 1 can be rotated in the direction against the moving direction. Therefore, it is not necessary to consider the direction of operation of the moving handrail inner surface cleaning device 10 during cleaning, and the effect of being very convenient is obtained.

Embodiment 3 FIG.
FIGS. 8 and 9 illustrate the main part of the moving handrail inner surface cleaning device for the man conveyor according to the third embodiment of the present invention. FIG. 8 is a top view and FIG. 9 is a side sectional view. In this third embodiment, as the driving means 6 for rotating the cleaning rotary brush 2, the moving motion of the moving handrail 1 is converted into a rotational force by the rotary roller 65 instead of the rotary drive motor of the first embodiment. It is a thing. The first rotating roller 65a and the second rotating roller 65b cooperate to be fixed to the horizontal input shaft 84 of the gear box 8A via a pulley 66 fixed to the second rotating roller 65b and a timing belt 74. The rotational force is transmitted to the pulley 85.

  A pulley 87 is fixed to the vertical output shaft 86 of the gear box 8A, and the timing belt 72 is wound between the pulley 87 and the pulley 53 of the second curved portion rotary cleaner 5, and the gear box 8A. Driven from the side. The horizontal output shaft 82 of the gear box 8A is configured to rotate in the direction opposite to the horizontal input shaft 84. An electromagnetic clutch (not shown) is provided between the gear box 8A and the horizontal input shaft 84. Since other reference numerals are the same as those in the first embodiment, description thereof is omitted.

  Next, the operation of the third embodiment configured as described above will be described. When the moving handrail 1 is driven so as to move in the direction of arrow C, the first and second rotating rollers 65a and 65b are friction driven. This rotational force is transmitted to the horizontal input shaft 84 of the gear box 8A through the pulley 66, the timing belt 74, and the pulley 85. At this time, when an electromagnetic clutch (not shown) is turned ON, this rotational force is transmitted to the flat portion rotary cleaning element 3 via the horizontal output shaft 82 of the gear box 8A, the pulley 83, and the timing belt 73, thereby rotating the flat portion. While rotating the child 3 in the direction of arrow E, it is transmitted to the second curved rotary cleaner 5 via the vertical output shaft 86 of the gear box 8A, the pulley 87, and the timing belt 72, and the gears 54 and 44 are further transmitted. To the first rotary cleaning element 4 for the curved portion.

  Here, the two pulleys 66 and 85 are set so that the relative rotational speed of the flat part rotary cleaner 3 and the first and second curved part rotary cleaners 4 and 5 with respect to the moving handrail 1 becomes a desired value. The diameter ratio and the gear ratio of the gear box 8A are determined, and when the electromagnetic clutch (not shown) is connected, the cleaning rotary brush 2 is configured to rotate in a direction that opposes the operation direction of the moving handrail 1. When the electromagnetic clutch is disconnected, the rotational force of the first and second rotating rollers 65a and 65b is not transmitted to the output shafts of the gear box 8A, and all the cleaning rotary brushes 2 are Passive rotation is performed so as to follow the moving direction.

  As described above, according to the third embodiment, the same effect as in the first embodiment can be obtained, and the moving force of the moving handrail 1 is used as the driving means. It becomes unnecessary and the device cost can be reduced. When a mechanical clutch that is operated by an operation lever or the like is used instead of the electromagnetic clutch, an effect that electric wiring is unnecessary can be obtained. Needless to say, it is possible to realize noise reduction and cost reduction by changing the gear to a timing belt and further to a V belt. Further, as the driving means 6, instead of the rotating roller 65 composed of a pair of first and second rotating rollers 65 a and 65 b, a handrail driving roller 14 or a pressure roller 15 originally installed on the escalator is used. It goes without saying that the same configuration can be achieved even if the rotational force is used.

  In the description of each of the above embodiments, a rotary brush provided with a large number of brushes radially is used as the flat part rotary cleaner 3 and the first and second curved part rotary cleaners 4 and 5. However, it is not necessarily limited to a brush. For example, a string-like one using a thread or a plastic film, a strip-like one using a woven fabric or a non-woven fabric is provided radially, or a sponge-like one It is also possible to provide the outer peripheral portion for rotation. In addition, a plurality of rotary cleaners having different materials for the cleaning element are arranged in the moving direction of the moving handrail, and the cleaning efficiency is improved by cleaning with the rotary cleaners having different materials according to the type of contaminants and foreign matters. It can also be done.

  In order to facilitate replacement of the brush portions of the flat portion rotary cleaner 3 and the first and second curved portion rotary cleaners 4 and 5, for example, a hub is used at the center. It is desirable that each of the rotating shafts be detachably attached at the hub portion. Moreover, although the case where it applied to an escalator was demonstrated in said each embodiment, it cannot be overemphasized that the same effect can be anticipated also in what combined the moving sidewalk or the escalator and the moving sidewalk. Further, when the cleaning rotary brush 2 is rotated against the moving direction of the moving handrail 1 at the time of cleaning, for example, when the cleaning efficiency is not a problem to the left, the rotational speed of the cleaning rotary brush 2 can be increased. Etc. may be rotated in the forward direction.

  Further, the first and second curved portion rotary cleaners 4 and 5 are arranged so that the tip portions of the brushes 41 and 51 interfere with each other. In this case, the brush 41 and / or the brush are arranged. 51. Although the effect of eliminating foreign matters such as dust held in 51 can be obtained, it is not always necessary to arrange the tips of the brushes 41, 51 so that the tips of the brushes 41, 51 cross each other. They may be provided so as to be separated from each other. In addition, various modifications and changes are naturally possible within the spirit of the present invention.

It is a perspective view which shows the principal part of the moving handrail inner surface cleaning apparatus of the man conveyor by Embodiment 1 of this invention. It is sectional drawing which shows arrangement | positioning of the rotary cleaning element for flat parts with respect to the flat part of the moving handrail shown in FIG. It is sectional drawing which shows arrangement | positioning of the 1st and 2nd rotational cleaning element for curved parts with respect to the curved part of the moving handrail shown in FIG. It is a top view which shows the principal part of the transmission mechanism which rotates the rotary brush for cleaning shown in FIG. It is a principal part side view of the transmission mechanism shown in FIG. It is a whole block diagram which shows notionally the example which installed the movable handrail inner surface cleaning apparatus shown in FIG. 1 inside the escalator. It is a switch circuit block diagram used for the moving handrail inner surface cleaning apparatus of the man conveyor by Embodiment 2 of this invention. It is a top view which shows the principal part of the moving handrail inner surface cleaning apparatus of the man conveyor by Embodiment 3 of this invention. It is side surface sectional drawing of the principal part shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Moving handrail, 1a Flat part, 1b, 1c Curved part, 2 Cleaning rotary brush, 3 Flat part rotary cleaner, 30 Rotary shaft, 32 Pulley, 4 First curved part rotary cleaner, 40 Rotary shaft, 41 brush, 43 pulley, 44 gear, 5 rotary cleaner for second curved portion, 50 rotating shaft, 53 pulley, 54 gear, 6 driving means, 60 rotating drive motor, 61 output shaft, 62 pulley, 65 rotating roller, 65a first rotating roller, 65b second rotating roller, 66 pulley, 71, 72, 73, 74 timing belt, 8, 8A gear box, 80 input shaft, 81 pulley, 82 horizontal output shaft, 83 pulley, 84 horizontal Input shaft, 85 pulley, 86 vertical output shaft, 87 pulley, 9 air inlet, 10 (10a, 10b) moving handrail inner surface cleaning device, 11 handrail receiving roller, 12 (12a, 12b) vacuum cleaner, 13 (13a, 13b) suction hose, 14 handrail drive roller, 15 pressure roller, 16 electromagnetic relay, 16a first changeover switch, 16b second changeover switch, 17 power supply switch.

Claims (7)

  A rotating cleaner for a flat portion provided so as to rotate in contact with the flat portion of the inner surface of the moving handrail, and to rotate in contact with one of the two opposing curved portions of the inner surface of the moving handrail. The second curved portion rotary cleaner provided on the second curved portion and the second curved portion rotary cleaner disposed in contact with the other curved portion are rotated in opposite directions to each other. Cleaning of the inner surface of a moving handrail of a man conveyor, comprising: a rotary cleaner for a curved portion; and a driving means for rotating the rotary cleaner for a flat portion and the first and second rotary cleaners for a curved portion. apparatus.   The flat part rotary cleaner and the first and second curved part rotary cleaners are each passively rotated in the moving direction of the moving handrail when the driving means is stopped. The moving handrail inner surface cleaning device of the man conveyor according to claim 1, wherein   The flat part rotary cleaning element includes a rotating shaft provided in a direction orthogonal to the moving direction of the movable handrail and parallel to the flat part, and a plurality of brushes provided radially around the rotating shaft. The moving handrail inner surface cleaning device of a man conveyor according to claim 1 or 2, wherein   The first or second rotating cleaning element for the curved portion is orthogonal to the moving direction of the moving handrail and is directed in a direction substantially perpendicular to the flat portion, and the width direction central portion of the moving handrail is The rotating shaft provided by shifting to one or the other curved portion side, and a large number of brushes provided radially at the tip of the rotating shaft are used. The moving handrail inner surface cleaning apparatus of the man conveyor in any one of claim | item 3.   The first rotary cleaning element for the curved portion and the second rotary cleaning element for the curved portion are rotated in opposite directions by providing the gears fixed to the respective rotating shafts so as to mesh with each other. The moving handrail inner surface cleaning apparatus for a man conveyor according to any one of claims 1 to 4, wherein the apparatus is configured as described above.   The first bending portion rotary cleaner and the second bending portion rotary cleaner are arranged at positions where their respective rotation axes are shifted from each other in the moving direction of the movable handrail. The moving handrail inner surface cleaning apparatus of the man conveyor according to any one of claims 1 to 5. An electromagnetic relay that operates in conjunction with a first changeover switch that switches the moving direction of the man conveyor and a second changeover switch that switches the rotation direction of the driving means, and the above-mentioned inserted in series in the second changeover switch When the power switch is turned on, the flat part rotary cleaner and the first and second curved part rotary cleaners always resist the moving direction of the moving handrail. 7. The moving handrail inner surface cleaning device for a man conveyor according to claim 1, wherein the inner surface cleaning device is rotated.

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