JP2021183325A - Platform door cleaning device and platform door cleaning method - Google Patents

Abstract

To provide a platform door cleaning device and a platform door cleaning method capable of cleaning a platform door efficiently and safely in a short time without requiring a lot of manpower.SOLUTION: A platform door cleaning device 1 cleans a platform door 100 erected on a platform of a station. The platform door cleaning device is configured on a self-propelled trolley, installed thereon with: cleaning brushes 3 and 4 rotatably supported by respective vertical brush shafts; an electric motor (drive source) for rotationally driving the cleaning brushes 3 and 4; and an ECU (control means) for controlling the driving of the electric motor. Herein, the cleaning brush 3 is a first cleaning brush that cleans the inside of the platform door 100, meanwhile, the cleaning brush 4 is a movable second cleaning brush that cleans the outside of the platform door 100. Further, a platform door cleaning method using the platform door cleaning device 1 is a method of cleaning the platform door with the cleaning brushes 3 and 4 while making the trolley travel along the inside of the platform door 100 of the platform of the station.SELECTED DRAWING: Figure 4

Description

The present invention relates to a platform door cleaning device for cleaning a platform door installed on a platform (platform) of a station, and a platform door cleaning method using the same.

Platform doors are installed vertically on the platform of the station to prevent passengers waiting for the train from falling into the railroad tracks. This platform door is installed 20 to 30 cm inside the platform edge along the longitudinal direction of the platform (rail laying direction), and the opening and closing door that slides open and closes outside the train door part and opens. It is equipped with a vertical wall that functions as a door pocket for storing the opening and closing door.

By the way, since the opening / closing door constituting the platform door is made of a transparent glass plate or a resin plate, dirt accumulates on the surface after a predetermined period (for example, about half a year) and becomes cloudy. The surface needs to be cleaned regularly. Cleaning of the opening / closing door needs to be performed during a limited time when the train is not in operation in consideration of safety. In this cleaning of the platform door, the surface of the opening / closing door on the home side can be easily cleaned by the worker from the home side, but the worker cannot enter the track side on the opposite side. It is difficult to clean the surface of the platform screen door on the track side.

Therefore, Patent Document 1 proposes a cleaning device capable of safely cleaning the surface of a platform door on the track side of an opening / closing door. This cleaning device includes a slide portion that can slide horizontally along the upper edge of the platform door, a cleaning portion that cleans the surface of the opening / closing door of the platform door while moving horizontally together with the slide portion, and the cleaning. It has a fixed part to fix the part. With such a cleaning device, the surface of the platform door opening / closing door on the track side (access restricted area side) is cleaned as follows.

That is, the operator horizontally attaches the slide portion of the cleaning device to the upper edge of the opening / closing door, rotates the slide portion, moves the slide portion together with the cleaning portion from the horizontal posture to the vertical posture, and moves the slide portion to the cleaning portion. By sliding horizontally along the surface of the open / close door, the surface of the open / close door on the line side can be safely cleaned without the operator entering the line side (access restricted area side).

Japanese Patent No. 5946175

However, since the cleaning by the cleaning device proposed in Patent Document 1 relies on the manual work of the operator, there is a problem that the work efficiency is poor and a lot of time and manpower are required. In addition, this cleaning device is for cleaning only the opening and closing doors of platform doors, and cleaning of the vertical walls of platform doors relies exclusively on manual work by workers, so it is useful for cleaning the entire platform doors. It takes a lot of labor, time and manpower. Further, cleaning of the boundary (corner portion) between the opening / closing door of the platform door and the vertical wall also relies on manual work by the operator, so that there is a similar problem.

The present invention has been made in view of the above problems, and an object thereof is a platform door cleaning device and a home that can clean a platform door efficiently and safely in a short time without requiring a lot of manpower. To provide a door cleaning method.

In order to achieve the above object, the invention according to claim 1 is a home door cleaning device for cleaning a home door erected on a platform of a station, which is rotated by a self-propelled trolley with a vertical brush shaft. The first feature is that a cleaning brush that is supported as possible, a drive source that rotationally drives the cleaning brush, and a control means that controls the drive of the drive source are installed and configured.

The second feature of the invention according to claim 2 is that, in addition to the first feature, the cleaning brush is detachably installed on the trolley.

The invention according to claim 3 has, in addition to the first or second feature, the first cleaning brush for cleaning the inside of the platform door as the cleaning brush, and the direction orthogonal to the traveling direction of the trolley. A third feature is that it is provided with a movable second cleaning brush that is movable and cleans the outside of the platform door.

The invention according to claim 4, in addition to the above-mentioned first to third features, the cleaning brush can swing horizontally in a predetermined angle range and / or with respect to the inner surface of the platform door. The cleaning brush is supported so as to be detachable, and a urging means for urging the cleaning brush to a neutral position in the swing direction and a contact / detaching mechanism for engaging and detaching the cleaning brush with respect to the platform door are provided. It is a feature of 4.

In the invention according to claim 5, in addition to the above-mentioned first to fourth features, the traveling carriage is provided with a safety bar and a contact detecting means for detecting a person's contact with the safety bar. The fifth feature is that when the contact detecting means detects a person's contact with the safety bar, the control means is configured to stop the self-propelled movement of the trolley and the rotation of the cleaning brush. ..

In the invention according to claim 6, in addition to the above-mentioned first to fifth features, the carriage is provided with an operation lever, and the control means is operated by turning on / off the operation lever. The sixth feature is to run / stop the carriage and / or rotate / stop the cleaning brush.

The invention according to claim 7 is the platform door cleaning method using the platform door cleaning device according to any one of claims 1 to 6, wherein the trolley is placed along the inside of the platform door of the platform of the station. The seventh feature is to rotate the cleaning brush while traveling and clean the platform door with the cleaning brush.

In the invention according to claim 8, in addition to the seventh feature, the opening / closing door of the platform door is opened, the second cleaning brush is placed outside the home door, and then the opening / closing door is closed. The first cleaning brush and the second cleaning brush are pressed against the inner surface and the outer surface of the platform door with predetermined surface pressures, and the trolley is moved along the platform door of the platform. The eighth feature is to rotate the cleaning brush 1 and the second cleaning brush, respectively, to simultaneously clean the inner surface and the outer surface of the platform door.

According to a ninth aspect of the present invention, in addition to the feature of the seventh or eighth aspect, the control means adjusts the surface pressure of the cleaning brush with respect to the cleaning surface of the platform door according to the supply current to the drive source. The ninth feature is to do.

The invention according to claim 10, in addition to the feature according to any one of the seventh to ninth aspects, causes the control means to slow down the traveling speed of the trolley when the sensor detects a corner portion of the platform door. Alternatively, the tenth feature is that the self-propelled carriage and the rotation of the cleaning brush are automatically stopped.

The invention according to claim 11, in addition to the feature of any one of the seventh to tenth, disassembles the platform door cleaning device into a plurality of parts and transports the platform door cleaning device to the home by an elevator of the home, and then the platform. The eleventh feature is that the door cleaning device is assembled and traveled to the platform door at a speed higher than the speed at the time of cleaning.

According to the inventions of claims 1 and 7, the platform door opening / closing door and the vertical wall are cleaned by the rotation of the cleaning brush moving along with the self-propelled trolley on the platform of the station along the platform door. It is possible to clean the entire door efficiently and safely in a short time without requiring a lot of manpower.

According to the second aspect of the present invention, after cleaning the home door with a cleaning brush, the cleaning brush is replaced with a drying brush for wiping, and the trolley is self-propelled along the home door while rotating the drying brush. Thereby, the cleaning agent remaining on the cleaning surface after cleaning the home door can be wiped off with a drying brush to dry the cleaning surface.

According to the inventions of claims 3 and 8, since the inside of the platform door can be cleaned by the first cleaning brush and the outside of the platform door can be cleaned by the second cleaning brush, the inside of the platform door can be cleaned. And the outside can be washed at the same time, and the entire platform door can be washed more efficiently, in a short time, and safely.

According to the invention of claim 4, since the cleaning brush is supported so as to be swingable in the horizontal direction within a predetermined angle range and to be contactable and detachable with respect to the inner surface of the home door, the cleaning brush is supported. If an excessive load is applied to the cleaning brush when overcoming a step (the corner that is the boundary between the opening / closing door and the vertical wall) of the home door, the cleaning brush swings horizontally or with respect to the home door. By moving the cleaning brush, the excessive load acting on the cleaning brush is alleviated. Therefore, it is possible to prevent the occurrence of problems such as damage due to the overload of the cleaning brush.

According to the fifth aspect of the present invention, when a person or an object comes into contact with a safety bar installed on the trolley during the cleaning operation, the sensor detects the contact and the trolley stops self-propelled and the cleaning brush does not rotate. Therefore, the safety of people is ensured.

According to the invention of claim 6, the operator can easily run / stop the trolley by turning on / off the operation lever provided on the trolley, and requires a high degree of skill in the cleaning work. There is no.

According to the invention of claim 9, since the surface pressure of the cleaning brush with respect to the cleaning surface of the platform door is optimally adjusted according to the supply current to the drive source, the cleaning surface of the platform door is effectively adjusted by the cleaning brush. To be washed.

According to the invention of claim 10, when the sensor detects the corner portion of the platform door, the control means slows down the traveling speed of the trolley or automatically stops the self-propelling of the trolley and the rotation of the cleaning brush. Therefore, the load received by the cleaning brush from the corner of the platform door can be suppressed to a small value, and damage to the cleaning brush can be prevented.

According to the invention of claim 11, when the platform door cleaning device is transported to the platform of a station, it can be easily disassembled into a plurality of parts and used by the elevator of the platform to the platform which is the cleaning site. Can be transported to. Then, the platform door cleaning device is assembled from multiple parts transported to the platform, and the platform door cleaning device is run (self-propelled) to the platform door in a short time at a speed faster than the speed at the time of cleaning to clean the platform door. Can be offered to.

It is a partial perspective view of the platform which shows the state which the opening and closing door of a platform door is closed. It is a partial perspective view of a platform which shows the state which the opening and closing door of a platform door is open. It is a front view of the platform door cleaning apparatus which concerns on Embodiment 1 of this invention. It is a top view of the platform door cleaning apparatus which concerns on Embodiment 1 of this invention. It is a side view of the platform door cleaning apparatus which concerns on Embodiment 1 of this invention (the figure in the arrow view 5 direction of FIG. 3). It is a side view of the platform door cleaning apparatus which concerns on Embodiment 1 of this invention (the figure in the 6th direction of arrow view of FIG. 3). It is a 7-part enlarged detailed view of FIG. (A) and (b) are eight-part enlarged detailed views of FIG. It is a 9-part enlarged detailed view of FIG. It is a 10-part enlarged detailed view of FIG. It is a block diagram which shows the system structure of the platform door cleaning apparatus which concerns on Embodiment 1 of this invention. It is a flowchart which shows the platform door cleaning method which concerns on Embodiment 1 of this invention in the order of the process. It is a flowchart which shows the cleaning work in the platform door cleaning method which concerns on Embodiment 1 of this invention in the order of the process. It is a schematic plan view which shows the movement locus of the cleaning brush in the platform door cleaning method which concerns on Embodiment 1 of this invention. It is a front view of the platform door cleaning apparatus which concerns on Embodiment 2 of this invention. It is a top view of the platform door cleaning apparatus which concerns on Embodiment 2 of this invention. FIG. 15 is a view in the direction of arrow 17 in FIG. It is a block diagram which shows the system structure of the platform door cleaning apparatus which concerns on Embodiment 2 of this invention. It is a flowchart which shows the platform door cleaning method which concerns on Embodiment 2 of this invention in the order of the process. It is a flowchart which shows the cleaning work in the platform door cleaning method which concerns on Embodiment 2 of this invention in the order of the process. It is a top view of the platform door cleaning apparatus which concerns on Embodiment 3 of this invention corresponding to FIG. 4 of Embodiment 1 of this invention. It is a schematic plan view which shows the completion method of the cleaning of the platform door which concerns on Embodiment 3 of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[Home door]
First, the platform door 100 to be cleaned by the platform door cleaning device 1 (see FIGS. 3 to 7) according to the present invention will be described below with reference to FIGS. 1 and 2.

FIG. 1 is a partial perspective view of the platform showing a state in which the opening / closing door of the platform door is closed, and FIG. 2 is a partial perspective view of the home showing a state in which the opening / closing door of the platform door is open. , The platform door 100 is installed vertically on the platform of the station.

The platform door 100 is for preventing passengers waiting for the train 200 (see FIG. 2) from falling into the railroad track, and is 20 to 30 cm inside the platform end in the longitudinal direction of the platform (rail laying). It is installed vertically along the direction), and as a door pocket for storing a pair of opening and closing doors 100A that slides and opens and closes on the outside of the door part of the train 200, and each opening and closing door 100A that opens. It has a functioning vertical wall 100B.

The opening / closing door 100A is a pair of rectangular plate-shaped members that open / close a rectangular space (a space for passengers to move up and down) S (see FIG. 2) between two adjacent vertical walls 100B, and is made of transparent glass. It is composed of a plate and a resin plate. Each pair of open / close doors 100A slides in a direction close to each other to close the space S (see FIG. 1), and slides in a direction away from each other to open (open) the space S as shown in FIG. Before the train 200 (see FIG. 2) arrives at the platform and until the door of the train 200 arriving at the platform opens, the space S is closed to prevent passengers from falling onto the railroad track as shown in FIG. .. Then, as shown in FIG. 2, each opening / closing door 100A slides to open the space S before the train 200 arrives at the platform and the door of the train 200 opens, and then when the door of the train 200 opens, Allows passengers to get on and off the train 200. When the passengers get on and off the train 200 in this way, the doors of the train 200 are closed, then each opening / closing door 100A slides to close the space S again, and then the train 200 departs.

By the way, since dirt accumulates on the surfaces of the plurality of opening / closing doors 100A and the vertical wall 100B constituting the platform door 100 after a predetermined period (for example, about half a year) has elapsed, each of the opening / closing door 100A and the vertical wall 100B It is necessary to clean each surface periodically, and these cleanings are efficiently and safely performed by the platform door cleaning device according to the present invention.

<Embodiment 1>
[Home door cleaning device]
Next, the details of the configuration of the platform door cleaning device according to the first embodiment of the present invention will be described below with reference to FIGS. 3 to 11.

FIG. 3 is a front view of the platform door cleaning device according to the first embodiment of the present invention, FIG. 4 is a plan view of the platform door cleaning device, and FIG. 5 is a side view of the platform door cleaning device (arrow view 5 in FIG. 3). (Direction view), FIG. 6 is a side view of the platform door cleaning device (view in the direction of arrow 6 in FIG. 3), FIG. 7 is a 7-part enlarged detailed view of FIG. 5, and FIGS. 8 (a) and 8 (b) are shown. FIG. 5 is an enlarged detailed view of 8 parts, FIG. 9 is a detailed enlarged view of 9 parts of FIG. 6, FIG. 10 is a detailed enlarged view of 10 parts of FIG. 3, and FIG. 11 is a block diagram showing a system configuration of the platform door cleaning device. ..

The home door cleaning device 1 according to the present embodiment cleans the home door 100 erected on the platform of the station shown in FIGS. 1 and 2, and is self-cleaning as shown in FIGS. 3 to 6. The first cleaning brush 3 and the second cleaning brush 4 rotatably supported by the vertical brush shafts 3A and 4A on the running type trolley 2, and the first and second cleaning brushes 3 and 4 thereof. The electric motors 5 and 6 as drive sources for rotationally driving the electric motors 5 and 6, and the electronic control unit (hereinafter abbreviated as ECU (Electronic Control Unit) 7) 7 which is a control means for controlling the drive of these electric motors 5 and 6, respectively. , As will be described later, while the first and second cleaning brushes 3 and 4 are rotated to clean the home door 100, a cleaning agent (cleaning liquid or coating liquid) is sprayed onto the cleaning surface of the home door 100. The injection means 8 and the electric motors 5 and 6 are configured by installing a battery 9 as a power source for supplying electric power, respectively.

(Bogie)
The self-propelled trolley 2 is provided with a rectangular frame-shaped frame 2A, and rotatable casters 10 are rotatably attached to the front, rear, left, and right four corners of the lower portion of the frame 2A. That is, the platform door cleaning device 1 is supported by four casters 10 so as to be able to travel along the platform of the station. Here, as shown in FIG. 4, the traveling direction of the trolley 2 is the "front-back" direction (horizontal direction in FIG. 4), and the direction orthogonal to the traveling direction of the trolley 2 (vertical direction in FIG. 4) is the "left-right" direction. And.

Further, as shown in FIG. 3, a pair of left and right drive wheels 11 are rotatably supported in the central portion of the lower portion of the frame 2A in the front-rear direction, and these drive wheels 11 are a pair of drive wheels 11 shown in FIG. Each is independently rotationally driven by the traveling motor 12. Here, as shown in FIG. 11, each traveling motor 12 is electrically connected to the battery 9 via the ECU 7, and the ECU 7 individually energizes the left and right traveling motors 12 from the battery 9. Be controlled. Therefore, the rotation direction and the rotation speed of the left and right drive wheels 11 are controlled independently. For example, if the left and right drive wheels 11 rotate forward or backward at the same speed, the trolley 2 (platform door cleaning device 1) can be moved straight forward or backward, and by rotating the left and right drive wheels 11 with a speed difference, the left and right drive wheels 11 can be rotated forward or backward. The trolley 2 (platform door cleaning device 1) can be moved forward or backward while turning in a desired direction.

(First cleaning brush)
The first cleaning brush 3 is for cleaning the inner surface (the surface on the home side) of the platform door 100 (see FIGS. 1 and 2), and is detachably installed on the trolley 2. .. The first cleaning brush 3 is attached to a vertical brush shaft 3A rotatably supported inside (home side) of the platform door 100 at the front end of the frame 2A of the trolley 2 and to the brush shaft 3A. It is composed of a brush body 3B. Here, the brush body 3B is formed in a columnar shape as a whole by a large number of strip-shaped cloth pieces or brush bristles, and when this is rotated, it spreads radially outward by centrifugal force and is a platform door as described later. Clean the inner surface of 100.

By the way, the first cleaning brush 3 is rotationally driven by an electric motor 5 which is a drive source. The electric motor 5 is fixed to the upper part of the brush arm 18, and as shown in detail in FIG. A sprocket 13 is attached to an output shaft 5a extending vertically downward of the electric motor 5. The upper end of the brush shaft 3A is rotatably supported by the upper and lower pillow blocks 14 and 15, and the sprocket 16 is attached between the upper and lower pillow blocks 14 and 15 of the brush shaft 3A. .. An endless chain 17 is wound around the sprocket 16 and the sprocket 13 attached to the output shaft 5a of the electric motor 5, and the two sprockets 13, 16 and the chain 17 serve as a power transmission mechanism. It constitutes the chain transmission mechanism of.

Therefore, the rotation of the output shaft 5a of the electric motor 5 is transmitted to the brush shaft 3A via the chain transmission mechanism, whereby the first cleaning brush 3 is rotationally driven at a predetermined speed to drive the home door 100 (opening / closing door 100A). And the vertical wall 100B) is used for cleaning the inner surface. Here, as shown in FIG. 11, the electric motor 5 is electrically connected to the battery 9 via the ECU 7, and the supply power (supply current) from the battery 9 to the electric motor 5 is controlled by the ECU 7. As a result, the rotation speed of the first cleaning brush 3 is controlled. The first cleaning brush 3 can clean the upper surface and the inner side surface of the vertical wall 100B (see FIGS. 1 and 2), and the cloth pieces and brush bristles constituting the brush body 3B are on the upper side. The length of the part is longer than the length of the part below it.

Further, as shown in FIG. 4, the first cleaning brush 3 can be swung horizontally within a predetermined angle range about the rotation axis 19 by the brush arm 18 and with respect to the inner surface of the platform door 100. It is supported so that it can be attached and detached. Here, the swing shaft 20 extends to the left from the brush arm 18, and the first cleaning brush 3 is urged to a neutral position in the swing direction on both front and rear sides of the swing shaft 20. Neutral springs 21 and 22 constituting the force means are arranged. Therefore, the first cleaning brush 3 is held in the neutral position in the swing direction shown in FIG. 4 by the neutral springs 21 and 22 in a state where no load (external force) is applied to the first cleaning brush 3. Then, as shown in FIG. 4, a runout safety switch 23 for detecting the runout of the first cleaning brush 3 is provided in the vicinity of the neutral springs 21 and 22. As shown in FIG. 11, the runout safety switch 23 is electrically connected to the ECU 7.

Further, as shown in detail in FIG. 8, a telescopic cylinder 24 constituting a contact / detachment mechanism of the first cleaning brush 3 is interposed between the end of the brush arm 18 and the frame 2A of the trolley 2. The expansion / contraction cylinder 24 is displaced within the range of the stroke x shown in the figure between the compressed state shown in FIG. 8 (a) and the expanded state shown in FIG. 8 (b), whereby the first cleaning brush 3 is described above. It is supported so as to be detachable from the inner surface of the platform door 100 as described above. As shown in FIG. 11, the telescopic cylinder 24 is electrically connected to the ECU 7.

(Second cleaning brush)
The second cleaning brush 4 is for cleaning the outer surface (track side surface) of the platform door 100 (see FIGS. 1 and 2), and is detachably installed on the carriage 2. .. The second cleaning brush 4 is rotatably arranged at the rear end of the frame 2A of the carriage 2, and is composed of a vertical brush shaft 4A and a brush body 4B attached to the brush shaft 4A. There is. Here, the brush body 4B is formed in a columnar shape as a whole by a large number of strip-shaped cloth pieces or brush bristles, like the brush body 3B of the first cleaning brush 3, and is rotated by centrifugal force. It spreads outward in the radial direction and cleans the outer surface of the platform door 100 as described later. The second cleaning brush 4 can clean the upper surface and the outer surface of the vertical wall 100B (see FIGS. 1 and 2) of the platform door 100, and the cloth pieces and brush bristles constituting the brush body 4B can be used. , The length of the upper part is longer than the length of the lower part.

The second cleaning brush 4 is rotationally driven by an electric motor 6 which is a drive source. The electric motor 6 is fixed to the upper part of the link 30A of the long brush arm 30, and is shown in detail in FIG. As described above, the sprocket 25 is attached to the output shaft 6a extending vertically downward of the electric motor 6. The upper end of the brush shaft 4A is rotatably supported by the upper and lower pillow blocks 26 and 27, and the sprocket 28 is attached between the upper and lower pillow blocks 26 and 27 of the brush shaft 4A. .. An endless chain 29 is wound around the sprocket 28 and the sprocket 25 attached to the output shaft 6a of the electric motor 6, and the two sprockets 25, 28 and the chain 29 are formed by a power transmission mechanism. It constitutes a certain chain transmission mechanism.

Therefore, the rotation of the output shaft 6a of the electric motor 6 is transmitted to the brush shaft 4A via the chain transmission mechanism, whereby the second cleaning brush 4 is rotationally driven at a predetermined speed to drive the home door 100 (opening / closing door 100A). And the vertical wall 100B) is used for cleaning the outer surface. Here, as shown in FIG. 11, the electric motor 6 is electrically connected to the battery 9 via the ECU 7, and the supply power (supply current) from the battery 9 to the electric motor 6 is controlled by the ECU 7. As a result, the rotation speed of the second cleaning brush 4 is controlled.

By the way, as shown in FIG. 4, the second cleaning brush 4 is movable in the left-right direction and moves from the initial position indicated by the chain line to the solid line position outside the platform door 100. be able to. That is, the second cleaning brush 4 is supported so as to be movable in the left-right direction by the long brush arm 30 that can be bent in a dogleg shape. Here, the long brush arm 30 is composed of two links 30A and 30B rotatably pivoted by a shaft 31, and a second cleaning brush 4 is rotatably supported at the tip of one of the links 30A. Has been done. A sprocket 33 is attached to the shaft 32 attached to the end of the other link 30B (see FIG. 4).

A swing shaft 34 extends to the left from one link 30A of the long brush arm 30, and a second cleaning brush 4 is placed on both front and rear sides of the swing shaft 34 in a neutral position in the swing direction. Neutral springs 35, 36 constituting the urging means for urging the vehicle are arranged. Therefore, the second cleaning brush 4 is held in the neutral position in the swing direction by the neutral springs 35 and 36 when no load (external force) is applied to the second cleaning brush 4. Then, as shown in FIG. 4, a runout safety switch 37 for detecting the runout of the second cleaning brush 4 is provided in the vicinity of the neutral springs 35 and 36. As shown in FIG. 11, the runout safety switch 37 is electrically connected to the ECU 7.

The long brush arm 30 is bent (opened and closed) by the opening / closing motor 38 shown in FIG. 6, and a sprocket 39 is attached to the upper end of the vertically standing output shaft 38a of the opening / closing motor 38. An endless chain 41 is wound between the sprocket 39 and the sprocket 40 attached to one end of the link 30B, and these sprockets 39, 40 and the chain 41 are chains that are power transmission mechanisms. It constitutes a transmission mechanism. Here, as shown in FIG. 11, the open / close motor 38 is electrically connected to the battery 9 via the ECU 7, and when the forward / reverse rotation and the amount of rotation of the open / close motor 38 are controlled by the ECU 7, the open / close motor 38 is connected. The rotation of 38 is transmitted to the link 30B of the long brush arm 30 via the chain transmission mechanism. Then, the long brush arm 30 is displaced from the initial position shown by the chain line in FIG. 4 to the cleaning position shown by the solid line, and the second cleaning brush 4 which was in the initial position shown by the chain line in FIG. 4 before cleaning is released. It moves to the right to the cleaning position shown by the solid line, and the second cleaning brush 4 comes into contact with the upper surface and the outer surface of the home door 100 and is used for cleaning the upper surface and the outer surface. As shown in FIG. 4, a close confirmation switch 42 is provided in the vicinity of the open / close motor 38, and the close confirmation switch 42 is electrically connected to the ECU 7 as shown in FIG. ..

(Injection means)
When the first and second cleaning brushes 3 and 4 are rotated to clean the inner surface and the outer surface of the platform door 100 at the same time, the injection means 8 touches the cleaning surface of the platform door 100. It sprays a cleaning agent. Here, the cleaning agent includes a cleaning liquid and a coating liquid, and these cleaning liquid and the coating liquid are stored in a tank 43 (see FIGS. 5 and 6) in a separated state.

Thus, the injection means 8 includes a tank 43, a pair of cleaning liquid injection pipes 44 and 45 for injecting the cleaning liquid, and a pair of two sets of short lengths for injecting the coating liquid. The coating liquid injection pipes 46 and 47, the cleaning liquid pump 48 for pumping the cleaning liquid stored in the tank 43 to each pair of two sets of cleaning liquid injection pipes 44 and 45, and the cleaning liquid separately stored in the tank 43. It is configured to include a coating liquid pump 49 for pumping the coated coating liquid to each pair of two sets of coating liquid injection pipes 46 and 47. The cleaning liquid pump 48 and the coating liquid pump 49 are of electric type driven by an electric motor (not shown).

Although not shown, one hose extends from the tank 43, and four hoses are branched from this hose, and each of the branched hoses is paired with a pair of cleaning liquid injection pipes 44 and 45. It is connected to each of the coating liquid injection pipes. A flow path switching solenoid valve 50 (see FIG. 11) is provided at the branch point of one hose extending from the tank 43, and the cleaning liquid pump 48 is driven to drive the cleaning liquid to be discharged from the tank 43. The flow path is switched by the path switching solenoid valve 50 and supplied to the pair of cleaning liquid injection pipes 44 and 45. Further, the coating liquid sent out from the tank 43 by driving the coating liquid pump 49 is supplied to the pair of coating liquid injection pipes 46 and 47 by switching the flow path by the flow path switching solenoid valve 50. Here, as shown in FIG. 11, the cleaning liquid pump 48, the coating liquid pump 49, and the flow path switching solenoid valve 50 are electrically connected to the ECU 7.

As shown in FIGS. 3 to 6, each pair of cleaning liquid injection pipes 44 and each pair of coating liquid injection pipes 46 in one set stand vertically in front of and behind the first cleaning brush 3. It is set up. In each cleaning liquid injection pipe 44, a plurality of (five in the illustrated example) circular hole-shaped injection ports 44a are opened at equal intervals in the vertical direction toward the inner surface of the platform door 100, and each coating liquid is formed. The injection pipe 46 is open with one injection port 46a (see FIG. 3) that is elongated in the vertical direction. Further, the other set of the pair of cleaning liquid injection pipes 45 and each pair of coating liquid injection pipes 47 are erected vertically in front of and behind the second cleaning brush 4. A plurality of (five in the illustrated example) circular hole-shaped injection ports 45a are opened in each cleaning liquid injection pipe 45 in the vertical direction at equal intervals toward the outer surface of the platform door 100, and each coating liquid is injected. One injection port 47a (see FIG. 3) having a rectangular shape elongated in the vertical direction is opened in the tube 47.

(ECU)
The ECU 7 is a pair of traveling motors 12 (see FIG. 11) that independently rotate and drive a pair of left and right drive wheels 11 (see FIG. 3), and an electric motor that is a drive source for the first and second cleaning brushes 3 and 4. The motors 5 and 6, the telescopic cylinder 24 which is the contacting / detaching means, the opening / closing motor 38 for swinging the long brush arm 30, and the cleaning liquid pump for pumping the cleaning liquid to each pair of cleaning liquid injection pipes 44 and 45. 48, a coating liquid pump 49 for pumping the coating liquid to each pair of coating liquid injection pipes 46 and 47, and a flow path switching solenoid valve 50 (see FIG. 11) are driven and controlled, respectively. Specifically, signals from the ON / OFF switch 53, the safety bar switch 55, the distance sensor 56, etc. provided on the operation lever 52, which will be described later, as well as the runout safety switches 23, 37, the close confirmation switch 42, the camera 58, and the like. In response to this, the current supplied from the battery 9 to the traveling motor 12, the electric motors 5, 6, the telescopic cylinder 24, the open / close motor 38, the cleaning liquid pump 48, the coating liquid pump 49, and the flow path switching control valve 50 is controlled. be.

Here, as shown in FIGS. 3 and 4, round bar-shaped handles 51 extending in the left-right direction are attached to the intermediate height positions in the front and rear of the frame 2A of the carriage 2, and each handle 51 is attached to each handle 51. An operation lever 52 that can be rotated up and down is provided. Here, each operation lever 52 is provided with an ON / OFF switch 53 (see FIG. 11) that is turned ON / OFF by rotating the operating lever 52, and these ON / OFF switches 53 are shown in FIG. As shown in, it is electrically connected to the ECU 7.

By the way, as shown in FIGS. 3 and 4, safety bars 54 that stand vertically are attached to four places on the front, back, left and right of the frame 2A of the carriage 2, and the safety bars 54 are attached to the safety bars 54. A safety bar switch 55 for detecting when a person or an unexpected object comes into contact with the 54 is provided. Further, a distance sensor 56 for detecting the distance to the platform door 100 being cleaned is installed at the lower part of the right side (the side facing the platform door 100 during cleaning) on the front and rear of the frame 2A of the dolly 2. There is. Then, each safety bar switch 55 and each distance sensor 56 are electrically connected to the ECU 7 as shown in FIG.

Further, as shown in FIGS. 3 and 4, the portion of the dolly 2 to the left of the center in the left-right direction before and after the upper end of the frame 2A is vertically bent and then bent to the right (lower side of FIG. 4). Arms 57 that extend horizontally diagonally forward and diagonally backward are provided, and a camera 58 is attached to the tip of each arm 57. Here, each camera 58 captures an end portion of the platform door 100, a boundary between the opening / closing door 100A of the platform door 100 and the vertical wall 100B, and the like, and these cameras 58 are as shown in FIG. Is electrically connected to the ECU 7.

Here, as shown in FIGS. 5 and 6, the ECU 7 is provided with an operation unit 59 provided with a plurality of switches for manual operation. The operation unit 59 is provided with various operation keys that can be arbitrarily operated and input by an operator. The various operation keys include, for example, a power ON / OFF key, a cleaning start / stop key, a movement start / stop key of the platform door cleaning device 1, a key for setting the movement direction, and a key for setting automatic / semi-automatic. , A key for driving / stopping the brush arm 18 and the long brush arm 30 is provided.

Further, the ECU 7 is provided with a detachable remote controller 60 (see FIG. 11) for remotely controlling the traveling of the platform door cleaning device 1. The remote controller 60 is provided with an operation input unit for moving forward and backward and changing the direction of the platform door cleaning device 1 by individually driving and controlling a pair of left and right traveling motors 12 (see FIG. 11). The operator can operate the remote controller 60 while walking beside the platform door cleaning device 1 to move the platform door cleaning device 1 to a target position. The remote controller 60 may be either a wired type or a wireless type.

[How to clean platform doors]
Next, the platform door cleaning method according to the first embodiment of the present invention using the platform door cleaning device 1 configured as described above will be described below with reference to FIGS. 12 to 14.

FIG. 12 is a flowchart showing the platform door cleaning method according to the first embodiment of the present invention in the order of the steps, FIG. 13 is a flowchart showing the cleaning work in the platform door cleaning method in the order of the steps, and FIG. 14 is the platform door cleaning method. It is a schematic plan view which shows the movement locus of a cleaning brush.

First, prior to cleaning the platform door 100, the platform door cleaning device 1 is transported to the platform of the station by an elevator (used by passengers) installed on the platform (used by passengers) to the platform of the station (step S1 in FIG. 12). .. In this case, when the elevator is small, for example, the platform door cleaning device 1 is disassembled and transported by removing the first and second cleaning brushes 3 and 4 from the carriage 2. Here, since the first and second cleaning brushes 3 and 4 are detachably installed with respect to the trolley 2 as described above, they can be easily removed from the trolley 2.

When the platform door cleaning device 1 is transported to the platform of the station as described above, "power ON" is selected in the operation unit 59 (see FIGS. 5 and 6) installed in the platform door cleaning device 1 (step S2). ). For example, when the platform door cleaning device 1 is transported to the home with the first and second cleaning brushes 3 and 4 removed, the removed first and second cleaning brushes 3 and 4 are mounted on the trolley. Attach to 2 and assemble the platform door cleaning device 1. By disassembling the platform door cleaning device 1 in this way, even if the elevator is small, the platform door cleaning device 1 can be easily transported to the home by using the small elevator.

Next, "move" is selected in the operation unit 59 (step S3). Then, a pair of left and right traveling motors 12 (see FIG. 11) of the platform door cleaning device 1 are activated, and the pair of left and right drive wheels 11 are rotationally driven by these traveling motors 12, so that the platform door cleaning device 1 is on the platform. To drive. In this case, the traveling speed of the platform door cleaning device 1 can be set faster than the speed at the time of cleaning.

At the same time, the operation unit 59 selects the "moving direction" (step S4). The "moving direction" can also be selected by the remote controller 60 (see FIG. 11). Then, a speed difference occurs in the rotation of the pair of left and right traveling motors 12, the moving direction of the platform door cleaning device 1 is set, and the platform door cleaning device 1 self-propells toward the platform door 100 to be cleaned. Then, when the platform door cleaning device 1 moves to the platform door 100, the operator opens the opening / closing door 100A of the platform door 100 by operating a button (step S5).

Next, the operator selects "cleaning preparation" in the operation unit 59 (step S6), and then selects "long brush arm" (step S7). Then, the opening / closing motor 38 (see FIGS. 4 and 6) is activated, and the rotation thereof is transmitted to the link 30B of the long brush arm 30 via the chain transmission mechanism. The second cleaning brush 4, which extends from the initial state shown by the above to the cleaning state shown by the solid line and is rotatably supported by the long brush arm 30, passes through the open / close door 100A of the home door 100 and the home door. Move to the outside of 100 (track side). That is, the second cleaning brush 4 moves from the initial position shown in FIG. 4 to the cleaning position shown by the solid line. After that, the operator closes the opening / closing door 100A of the platform door 100 by operating a button (step S8). After that, the operator selects the "brush arm" (step S9). Then, the brush arm 18 (see FIG. 4) approaches the platform door 100, and the first cleaning brush 3 rotatably supported by the brush arm 18 is pressed against the inner surface of the platform door 100 with a predetermined pressure to come into contact with the home door 100.

After that, the platform door cleaning device 1 is moved to the cleaning start position of the platform door 100 (step S10), and the cleaning start position is recognized (step S11). In recognizing the cleaning start position, the distance sensor 56 installed in the platform door cleaning device 1 recognizes the distance between the platform door cleaning device 1 and the platform door 100, and the image captured by the camera 58 is used for cleaning. The start position is recognized. Here, as shown in FIG. 14, for example, the boundary portion between the opening / closing door 100A of the platform door 100 and the vertical wall 100B is image-recognized by the camera 58.

When the first and second cleaning brushes 3 and 4 are in the cleaning start position by the above image recognition, "OK" is displayed on the operation unit 59 (step S12). From this state, the operator selects "cleaning" or "coating" in the operation unit 59 (step S13), and selects "semi-automatic" or "fully automatic" as the cleaning mode (step S14). Then, after that, the operator selects "cleaning start" in the operation unit 59 (step S15).

After that, it is determined in step S14 whether "semi-automatic" or "fully automatic" is selected as the cleaning mode (step S16), and when "semi-automatic" is selected, the operator grasps the handle 51 and holds the handle 51. The operation lever 52 is rotated from the solid line position to the chain line position in the arrow direction (counterclockwise direction) in FIG. 10 to turn it on (step S17). Then, when the ON / OFF switch 53 (see FIG. 11) provided on the operation lever 52 is turned on and this ON signal is transmitted to the ECU 7, the ECU 7 executes the cleaning operation (step S18).

On the other hand, when "fully automatic" is selected in step S14 as a result of the determination in step S16, the cleaning operation is executed without performing the ON operation (step S17) of the operation lever 52 (step S18). ..

Here, the flow of the cleaning work in step S18 will be described below with reference to FIG.

When the cleaning work is started, the long brush arm 30 is contracted to bring the second cleaning brush 4 into contact with the outer surface of the home door 100 on the line side at a predetermined pressure, and the traveling motor 12 is driven to drive the cleaning device 1 at a low speed. While traveling, the electric motors 5 and 6 are driven to rotate the first and second cleaning brushes 3 and 4, respectively, while the cleaning liquid ponk 48 is driven to discharge the cleaning liquid from the tank 43 to each pair of cleaning liquid injection pipes. Supply to 44 and 45 (step S18-1). In this case, the distance sensor 56 installed in the platform door cleaning device 1 detects the distance between the platform door cleaning device 1 and the platform door 100, and the platform door cleaning device 1 slows down while keeping the distance between them constant. It runs on its own.

Then, the cleaning liquid is sprayed onto the inner and outer surfaces of the platform door 100 from the plurality of injection ports 44a and 45a (see FIG. 3) opened in each pair of cleaning liquid injection pipes 44 and 45, respectively, and the first and second cleanings rotate. The brushes 3 and 4 simultaneously clean the inner and outer surfaces and the upper surface of the platform door 100 (opening / closing door 100A and vertical wall 100B) to remove dirt. Here, the movement locus of the first cleaning brush 3 during the cleaning operation is shown by a chain line in FIG. 14, but the first cleaning brush 3 can swing in the horizontal direction within a predetermined angle range as described above. In addition, since the telescopic cylinder 24 can be brought into contact with and detached from the home door 100 by the stroke x shown in FIG. 8, the first cleaning brush 3 is the opening / closing door 100A of the home door 100 as shown in FIG. At the boundary portion (corner portion) with the vertical wall 100B, it is displaced by the amount of the step and moves in a trajectory as shown in the figure. Therefore, the first cleaning brush 3 can easily get over the step, and an overload does not act on the step to generate an overcurrent in the electric motor 5, and these first cleaning brushes 3 and the like. Damage to the electric motor 5 can be prevented. Alternatively, the load acting on the first and second cleaning brushes 3 and 4 can be detected by the supply current to the electric motors 5 and 6 for rotationally driving the cleaning brushes 3 and 4, so that the electric motor 5 By controlling the supply current to the first and second cleaning brushes 3 and 4, the surface pressure of the first and second cleaning brushes 3 and 4 with respect to the cleaning surface of the home door 100 can be optimally adjusted. As a result, the cleaning surface of the platform door 100 can be effectively cleaned by the first and second cleaning brushes 3 and 4.

In the above cleaning operation, it is determined whether "semi-automatic" or "fully automatic" is selected as the cleaning mode (step S18-2), and when "semi-automatic" is selected, the first and second cleaning operations are performed. The current values of the electric motors 5 and 6 for rotationally driving the cleaning brushes 3 and 4 are monitored (step S18-3), the runout of the brush arm 18 and the long brush arm 30 is monitored (step S18-4), and the safety bar. 54 is monitored (step S18-5). On the other hand, when "fully automatic" is selected as the cleaning mode, only the monitoring of the safety bar 54 is performed (step S18-5).

Then, in step S18-6, it is determined whether or not the current values of the electric motors 5 and 6 monitored in step S18-3 are appropriate, and for example, the current value of the electric motor 5 exceeds the appropriate value. In the case of electric current (step S18-6: No), the brush arm 18 is contracted to separate the first cleaning brush 3 from the inner surface of the home door 100, and the home door of the first cleaning brush 3 is separated. The contact pressure on the inner surface of 100 is reduced (step S18-7). If the current value of the electric motor 6 is an overcurrent exceeding an appropriate value (step S18-6: No), the long brush arm 30 is extended and the second cleaning brush 4 is used on the platform door 100. The contact pressure of the second cleaning brush 4 with respect to the outer surface of the platform door 100 is reduced by moving away from the outer surface (step S18-7). After that, it is determined whether or not the cleaning work is completed (step S18-8), and if the cleaning work is not completed (step S18-8: No), steps S18-6 to S18-8 are performed. When the process is repeated and the cleaning operation is completed (step S18-8: Yes), a series of processes is completed (step S18-9). The completion of the cleaning work is visually determined by the operator when the cleaning mode is set to "semi-automatic", and by the camera 58 when the working mode is set to "fully automatic". It will be judged automatically.

On the other hand, when the current values of the electric motors 5 and 6 all show appropriate values equal to or less than a predetermined value (step S18-6: Yes), it is determined whether or not the cleaning work is completed (step S18-8). ).

Further, in step S18-10, it is determined whether or not the runout of the brush arm 18 or the long brush arm 30 is detected in step S18-4 (step S18-10), and these brush arms 18 and the long brush arm 30 are determined. When at least one of the shakes is detected (step S18-10: Yes), the running of the platform door cleaning device 1 is stopped (step S18-11). Then, for example, when the vibration of the brush arm 18 is detected, the brush arm 18 is shrunk to separate the first cleaning brush 3 from the inner surface of the platform door 100, and the platform door of the first cleaning brush 3 is separated. The contact pressure on the inner surface of 100 is reduced (step S18-12). When the runout of the long brush 30 is detected, the long brush arm 30 is extended to separate the second cleaning brush 4 from the outer surface of the platform door 100, and the outer surface of the platform door 100 of the second cleaning brush 4 is separated. The contact pressure to the door is reduced (step S18-12).

As described above, after the surface pressure of at least one of the first and second cleaning brushes 3 and 4 is lowered due to the detection of the runout of the brush arm 18 or the long brush arm 30, the platform door cleaning device 1 is run. Resume (step S18-13). After that, it is determined whether or not the cleaning work is completed (step S18-14), and when the cleaning work is completed (step S18-14: Yes), a series of processes is completed (step S18-9). On the other hand, when the cleaning work has not been completed yet (steps S18-14: No), steps S18-10 to S18-14 are repeated.

On the other hand, when neither the brush arm 18 nor the long brush arm 30 is detected (step S18-10: No), the process proceeds to step S18-14, and it is determined whether or not the cleaning work is completed. ..

Further, in step S18-15, the monitor of the safety bar 54 in step S18-5 determines whether or not a person or an object has come into contact with the safety bar 54. As a result of this determination, when a person or an object comes into contact with the safety bar 54 (step S18-15: Yes), the platform door cleaning device 1 is temporarily stopped for safety (step S18-16). In this temporary stop, when it is detected by the safety bar switch 55 (see FIG. 11) provided in the safety bar 54 that a person has touched the safety bar 54, the ECU 7 receiving the detection signal cleans the home door. The operation of the device 1 (running, rotation of the first and second cleaning brushes 3 and 4, injection of cleaning liquid, etc.) is temporarily stopped.

After that, it is determined whether or not the safety is confirmed (step S18-17), and when the safety is confirmed (step S18-17: Yes), the operator performs "restart" in the operation unit 59. When selected (step S18-18), the cleaning work of the platform door 100 by the platform door cleaning device 1 is restarted, the process returns to step S18-1, and the series of processes described above are repeated thereafter. On the other hand, when safety is not confirmed (step S18-17: No), the suspension of the platform door cleaning device 1 is maintained (step S18-16).

On the other hand, when neither a person nor an object comes into contact with the safety bar 54 (step S18-15: No), it is determined whether or not the cleaning work is completed (step S18-19), and when the work is completed (step S18). -19: Yes), a series of processes is completed (step S18-9). On the other hand, when the cleaning work has not been completed yet (step S18-19: No), the process returns to step S18-15, and the same process as described above is performed thereafter.

Here, the flow chart shown in FIG. 12 will be returned to the description.

When the cleaning operation described with reference to FIG. 13 is completed, the running of the platform door cleaning device 1 is stopped (step S19). When the traveling mode is set to "semi-automatic", the traveling stop of the platform door cleaning device 1 is performed by the operator grasping the operation lever 52 provided on the handle 51 and operating the operation lever 52 for cleaning. When the mode is set to "fully automatic", it is automatically performed by a command from the ECU 7.

As described above, when the running of the platform door cleaning device 1 is stopped, it is determined whether or not the platform door 100 after cleaning is confirmed to be dirty (step S20). This dirt is confirmed visually by the operator.

If, as a result of the above determination, dirt is confirmed on the platform door 100 after cleaning (step S20: Yes), the cleaning operation in step S18 is executed again. In this case, when the first (first) cleaning work is performed while moving the platform door cleaning device 1 forward, the cleaning work is performed while moving the platform door cleaning device 1 backward. In this case, the traveling speed of the platform door cleaning device 1 may be reduced to slowly and carefully clean the dirty portion of the platform door 100. Alternatively, the dirty portion may be moved back and forth a plurality of times while the platform door cleaning device 1 is moved forward and backward.

Further, when the cleaning of the inner and outer surfaces of the platform door 100 while spraying the cleaning liquid is completed, the first and second cleaning brushes 3 and 4 used so far are replaced with dry brushes (not shown) for wiping. While spraying the coating liquid on the inner and outer surfaces of the platform door 100, the cleaning liquid remaining on the inner and outer surfaces of the platform door 100 may be wiped off with a drying brush, and the coating liquid may be sprayed on the inner and outer surfaces of the platform door 100. That is, while the platform door cleaning device 1 is self-propelled along the platform door 100, the two drying brushes are rotationally driven inside and outside the platform door 100 by the electric motors 5 and 6, and the coating liquid pump 49 is driven. The coating liquid stored in the tank 43 is pumped to each pair of coating liquid injection pipes 46 and 47, respectively, and the coating liquid is supplied from the injection ports 46a and 47a opened in these coating liquid injection pipes 46 and 47, respectively, to the platform door. It sprays toward the inner and outer surfaces of 100, respectively. Then, the coating liquid sprayed on the cleaning surface of the platform door 100, which has been wiped off and dried, suppresses the adhesion of dirt to the cleaning surface of the platform door 100, and keeps the cleaning surface clean for a long period of time. Is done. After cleaning with the cleaning brushes 3 and 4 while spraying the cleaning liquid is completed, the coating liquid may be sprayed on the inner and outer surfaces of the platform door 100 to finish the work as it is, or after that, as described above. The cleaning brushes 3 and 4 may be replaced with a drying brush to perform the drying operation.

On the other hand, if the cleaning surface of the platform door 100 is not found to be dirty as a result of the determination in step S20 (step S20: No), "cleaning completed" is selected in the operation unit 59 (step S21), and the operation is continued. Select the "brush arm" of the unit 59 (step S22). Then, the brush arm 18 contracts, and the first cleaning brush 3 rotatably supported by the brush arm 18 returns to the initial position (position before cleaning).

Then, the platform door cleaning device 1 is moved to the place of the opening / closing door 100A of the platform door 100. Next, the opening / closing door 100A of the platform door 100 is opened by a button operation by the operator (step S23), and the “long brush arm” is selected in the operation unit 59 (step S24). Then, the long brush arm 30 bends and the second cleaning brush 4 rotatably supported by the long brush arm 30 returns from the cleaning position shown by the solid line in FIG. 4 to the standby position shown by the chain line.

After that, the operator selects "move" in the operation unit 59 (step S25), operates the operation lever 52 provided on the handle 51 to drive the pair of traveling motors 12 of the platform door cleaning device 1, and drives the platform door. When the cleaning device 1 is moved from the platform door 100, the entire series of cleaning operations for the platform door 100 is completed.

As described above, in the present embodiment, the opening / closing door of the platform door 100 is rotated by the rotation of the first and second cleaning brushes 3 and 4 that move together with the self-propelled trolley 2 on the platform of the station along the platform door 100. Since the inner and outer surfaces and the upper surface of the 100A and the vertical wall 100B are cleaned at the same time, the entire platform door 100 can be cleaned efficiently and safely in a short time without requiring a lot of manpower.

Further, in the present embodiment, the first cleaning brush 3 is supported so as to be swingable in the horizontal direction within a predetermined angle range and to be contactable and detachable with respect to the inner surface of the home door 100. When the cleaning brush 3 of 1 gets over a step (a corner portion which is a boundary between the opening / closing door 100A and the vertical wall 100B) of the home door 100, an excessive load acts on the first cleaning brush 3. By swinging the first cleaning brush 3 in the horizontal direction or moving with respect to the inner surface of the home door 100, the excessive load acting on the first cleaning brush 3 is alleviated. Therefore, it is possible to prevent the occurrence of problems such as damage due to overload of the first cleaning brush 3 and the electric motor 5 that rotationally drives the first cleaning brush 3.

Further, after cleaning the home door 100 with the first and second cleaning brushes 3 and 4, the cleaning brushes 3 and 4 are replaced with a drying brush for wiping, and the trolley 2 is replaced with the home door 100 while rotating the drying brush. By self-propelling along the above, the cleaning liquid remaining on the cleaning surface of the home door 100 after cleaning can be wiped off with a drying brush to dry the cleaning surface.

Further, in the present embodiment, when a person or an object comes into contact with the safety bar 54 installed on the trolley 2 during the cleaning work, this is detected by the safety bar switch 55, and the trolley 2 is self-propelled and the first and first. Since the rotation of the second cleaning brushes 3 and 4 is stopped, human safety is ensured.

In addition, in the present embodiment, when "semi-automatic" is set as the traveling mode, the operator operates the trolley 2 (home door cleaning device 1) by turning on / off the operation lever 52 provided on the trolley 2. ) Can be easily run / stopped, and cleaning work does not require a high degree of skill. Even when the carriage 2 is stopped, the rotation of the first and second cleaning brushes 3 and 4 may be continued.

In the present embodiment, the first and second cleaning brushes 3 and 4 are composed of brush shafts 3A and 4A and brush bodies 3B and 4B attached to these brush shafts 3A and 4A, respectively. A columnar brush is used, but instead of these, a rotary brush having a vertical belt conveyor may be used.

Further, in the present embodiment, two cleaning liquids and a coating liquid are used as cleaning agents, but rinse water may be used in addition to these cleaning liquids and coating liquids.

<Embodiment 2>
[Home door cleaning device]
Next, the details of the configuration of the platform door cleaning device according to the second embodiment of the present invention will be described below with reference to FIGS. 15 to 18.

15 is a front view of the platform door cleaning device according to the second embodiment of the present invention, FIG. 16 is a plan view of the platform door cleaning device, FIG. 17 is a view in the direction of arrow 17 in FIG. 15, and FIG. 18 is the home. It is a block diagram which shows the system configuration of a door cleaning apparatus.

The home door cleaning device 1'according to the present embodiment cleans only the inner surface of the home door 100 (see FIGS. 1 and 2), and its basic configuration is one cleaning brush 3 (see the above-described embodiment). Since the configuration is the same as that of the home door cleaning device 1 according to the first embodiment except that the first cleaning brush 3) in the first embodiment is provided, FIGS. 3 to 11 are shown in FIGS. 15 to 18. The same elements as those shown are designated by the same reference numerals, and the description thereof will be omitted below.

As shown in FIGS. 15 to 17, the home door cleaning device 1'according to the present embodiment has one cleaning brush 3 on a self-propelled trolley 2 and a drive source for rotationally driving the cleaning brush 3. While the electric motor 5, the ECU 7 which is a control means for controlling the drive of the electric motor 5, and the cleaning brush 3 are rotated to clean the home door 100, the cleaning surface (inner surface) of the home door 100 is cleaned. It is configured by installing an injection means 8 for injecting agents (cleaning liquid and coating liquid), a battery 9 as a power source for supplying electric power to the electric motor 5, and the like.

Here, as shown in FIG. 18, a remote controller 60, an ON / OFF switch 53, a safety bar switch 55, a distance sensor 56, a camera 58, and a runout safety switch 23 are electrically connected to the input side of the ECU 7. On the output side, a traveling motor 12, an electric motor 5, a telescopic cylinder 24, a flow path switching electromagnetic valve 50, a cleaning liquid pump 48, and a coating liquid pump 49 are electrically connected.

[How to clean platform doors]
Next, the platform door cleaning method according to the second embodiment of the present invention using the platform door cleaning device 1'configured as described above will be described below with reference to FIGS. 19 and 20.

FIG. 19 is a flowchart showing the platform door cleaning method according to the second embodiment of the present invention in the order of the steps, and FIG. 20 is a flowchart showing the cleaning operations in the platform door cleaning method in the order of the steps.

First, prior to cleaning the platform door 100, the platform door cleaning device 1'is transported to the platform of the station by an elevator (used by passengers) not shown for people installed in the platform (step S31 in FIG. 19). ). In this case, when the elevator is small, for example, the cleaning brush 3 is removed from the carriage 2 to disassemble and transport the platform door cleaning device 1'. In this case, since the cleaning brush 3 is detachably installed on the trolley 2, it can be easily removed from the trolley 2.

When the platform door cleaning device 1'is transported to the platform of the station as described above, "power ON" is selected in the operation unit 59 (see FIG. 17) installed in the platform door cleaning device 1'(step S32). .. When the platform door cleaning device 1'is transported to the home with the cleaning brush 3 removed, the removed cleaning brush 3 is attached to the trolley 2 to assemble the platform door cleaning device 1'.

Next, "move" is selected in the operation unit 59 (step S33). Then, a pair of left and right traveling motors 12 (see FIG. 18) of the platform door cleaning device 1'are activated, and the pair of left and right drive wheels 11 are rotationally driven by these traveling motors 12 to drive the platform door cleaning device 1'. Drive on the platform. In this case, the traveling speed of the platform door cleaning device 1'can be set faster than the speed at the time of cleaning.

At the same time, the operation unit 59 selects the "moving direction" (step S34). The "moving direction" may be selected by the remote controller 60 (see FIG. 18). Then, a speed difference occurs in the rotation of the pair of left and right traveling motors 12, the moving direction of the platform door cleaning device 1'is set, and the platform door cleaning device 1'self-runs toward the platform door 100 to be cleaned. .. Then, when the platform door cleaning device 1'moves to the platform door 100, the operator selects "cleaning preparation" in the operation unit 59 (step S35), and then selects "brush arm" (step S36). .. Then, the brush arm 18 (see FIG. 16) approaches the platform door 100, and the cleaning brush 3 rotatably supported by the brush arm 18 is pressed against the inner surface of the platform door 100 with a predetermined pressure to come into contact with the home door 100.

After that, the platform door cleaning device 1'is moved to the cleaning start position of the platform door 100 (step S37), and the cleaning start position is recognized (step S38). In recognizing the cleaning start position, the distance sensor 56 installed in the platform door cleaning device 1'recognizes the distance between the platform door cleaning device 1'and the platform door 100, and the image captured by the camera 58. Recognizes the cleaning start position.

When the cleaning brush 3 is in the cleaning start position by the above image recognition, "OK" is displayed on the operation unit 59 (step S39). From this state, the operator selects "cleaning" or "coating" in the operation unit 59 (step S40), and selects "semi-automatic" or "fully automatic" as the cleaning mode (step S41). Then, after that, the operator selects "cleaning start" in the operation unit 59 (step S42).

After that, it is determined in step S41 whether "semi-automatic" or "fully automatic" is selected as the cleaning mode (step S43), and when "semi-automatic" is selected, the operator grasps the handle 51 and holds the handle 51. The operation lever 52 is turned ON (step S44). Then, when the ON / OFF switch 53 (see FIG. 18) provided on the operation lever 52 is turned on and this ON signal is transmitted to the ECU 7, the ECU 7 executes the cleaning operation (step S45).

On the other hand, when "fully automatic" is selected in step S41 as a result of the determination in step S43, the cleaning operation is executed without operating the operation lever 52 (step S44) (step S45).

Here, the flow of the cleaning work in step S45 will be described below with reference to FIG.

When the cleaning work is started, the traveling motor 12 is driven to drive the platform door cleaning device 1'at a low speed, and the electric motor 5 is driven to rotate the cleaning brush 3 while driving the cleaning liquid pump 48. It is driven to supply the cleaning liquid from the tank 43 to the pair of cleaning liquid injection pipes 44 (step S45-1). In this case, the distance sensor 56 installed in the platform door cleaning device 1'detects the distance between the platform door cleaning device 1'and the platform door 100, and the platform door cleaning device 1 keeps the distance between them constant. ′ Self-propelled at low speed.

Then, while the cleaning liquid is injected onto the inner surface of the platform door 100 from the plurality of injection ports 44a (see FIG. 15) that are opened in the pair of cleaning liquid injection pipes 44, the rotating cleaning brush 3 is perpendicular to the platform door 100 (opening / closing door 100A). The inner surface and the upper surface of the wall 100B) are simultaneously cleaned to remove dirt.

In the above cleaning operation, it is determined whether "semi-automatic" or "fully automatic" is selected as the cleaning mode (step S45-2), and when "semi-automatic" is selected, the cleaning brush 3 is rotationally driven. The current value of the electric motor 5 is monitored (step S45-3), the runout of the brush arm 18 is monitored (step S45-4), and the safety bar 54 is monitored (step S45-5). On the other hand, when "fully automatic" is selected as the cleaning mode, only the safety bar 54 is monitored (step S45-5).

Then, in step S45-6, it is determined whether or not the current value of the electric motor 5 monitored in step S45-3 is appropriate, and the current of the electric motor 5 is an overcurrent exceeding the appropriate value ( In step S45-6: No), the brush arm 18 is contracted to separate the cleaning brush 3 from the inner surface of the home door 100, and the contact pressure of the cleaning brush 3 with the inner surface of the home door 100 is lowered (step). S45-7).

After that, it is determined whether or not the cleaning work is completed (step S45-8), and if the cleaning work is not completed (step S45-8: No), the processes of S45-6 to S45-8 are repeated. When the cleaning work is completed (step S45-8: Yes), a series of processes is completed (step S45-9). The completion of the cleaning work is visually determined by the operator when the cleaning mode is set to "semi-automatic", and by the camera 58 when the working mode is set to "fully automatic". It will be judged automatically.

On the other hand, when the current of the electric motor 5 shows an appropriate value equal to or less than a predetermined value (step S45-6: Yes), it is determined whether or not the cleaning work is completed (step S45-8).

Further, in step S45-10, it is determined whether or not the runout of the brush arm 18 is detected in step S45-4, and when the runout of the brush arm 18 is detected (step S45-10: Yes), the platform screen doors are used. The running of the door cleaning device 1'is stopped (step S45-11). When the runout of the brush arm 18 is detected, the brush arm 18 is shrunk to separate the cleaning brush 3 from the inner surface of the platform door 100, and the contact pressure of the cleaning brush 3 on the inner surface of the platform door 100 is applied. Lower (step S45-12).

As described above, after the surface pressure of the cleaning brush 3 is lowered due to the detection of the runout of the brush arm 18, the running of the platform door cleaning device 1 is restarted (step S45-13). After that, it is determined whether or not the cleaning work is completed (step S45-14), and when the cleaning work is completed (step S45-14: Yes), a series of processes is completed (step S45-9). On the other hand, when the cleaning work has not been completed yet (step S45-14: No), the process of steps S45-10 to S45-14 is repeated.

On the other hand, when the runout of the brush arm 18 is not detected (step S45-10: No), the process proceeds to step S45-14, and it is determined whether or not the cleaning work is completed.

Further, in step S45-15, the monitor of the safety bar 54 in step S45-5 determines whether or not a person or an object has come into contact with the safety bar 54. As a result of this determination, when a person or an object comes into contact with the safety bar 54 (step S45-15: Yes), the platform door cleaning device 1'is temporarily stopped for safety (step S45-16). In this temporary stop, when it is detected by the safety bar switch 55 (see FIG. 18) provided in the safety bar 54 that a person or an object comes into contact with the safety bar 54, the ECU 7 that receives the detection signal returns home. The operation of the door cleaning device 1'(running, rotation of the cleaning brush 3, injection of cleaning liquid, etc.) is temporarily stopped.

After that, it is determined whether or not the safety is confirmed (step S45-17), and when the safety is confirmed (step S45-17: Yes), the operator performs "restart" in the operation unit 59. When selected (step S45-18), the cleaning work of the platform door 100 by the platform door cleaning device 1'is resumed, the process returns to step S45-1, and the series of processes described above are repeated thereafter. On the other hand, when safety is not confirmed (step S45-17: No), the suspension of the platform door cleaning device 1'continues (step S45-16).

On the other hand, when neither a person nor an object comes into contact with the safety bar 54 (step S45-15: No), it is determined whether or not the cleaning work is completed (step S45-19), and when the work is completed (step S45). -19: Yes), a series of processes is completed (step S45-9). On the other hand, when the cleaning work has not been completed yet (step S45-19: No), the process returns to step S45-15, and the same process as described above is performed thereafter.

Here, the flow chart shown in FIG. 19 will be returned to the description.

When the cleaning operation described with reference to FIG. 20 is completed, the running of the platform door cleaning device 1'is stopped (step S46). When the traveling mode is set to "semi-automatic", the traveling of the platform door cleaning device 1'is stopped by the operator grasping the operating lever 52 provided on the handle 51 and operating the operating lever 52. , When the cleaning mode is set to "fully automatic", it is automatically performed by a command from the ECU 7.

As described above, when the running of the platform door cleaning device 1'is stopped, it is determined whether or not the platform door 100 after cleaning is confirmed to be dirty (step S47). This dirt is confirmed visually by the operator.

If, as a result of the above determination, dirt is confirmed on the platform door 100 after cleaning (step S47: Yes), the cleaning operation in step S45 is executed again. In this case, when the first (first) cleaning work is performed while advancing the platform door cleaning device 1', the cleaning work is performed while advancing the platform door cleaning device 1'. In this case, the traveling speed of the platform door cleaning device 1'may be reduced to slowly and carefully clean the dirty portion of the platform door 100. Alternatively, the dirty portion may be repeatedly performed while moving the platform door cleaning device 1'back and forth a plurality of times.

When the cleaning of the inner surface of the platform door 100 while spraying the cleaning liquid is completed, the cleaning brush 3 used up to now is replaced with a dry brush (not shown) for wiping, and the coating liquid is applied to the inner surface of the platform door 100. The cleaning liquid remaining on the inner surface of the platform door 100 may be wiped off with a drying brush while spraying, and the coating liquid may be sprayed on the inner surface of the platform door 100. That is, while the platform door cleaning device 1'is self-propelled along the platform door 100, the drying brush is rotationally driven by the electric motor 5, and the coating liquid pump 49 is driven to drive the coating liquid stored in the tank 43. The coating liquid is pumped to each of the pair of coating liquid injection pipes 46, and the coating liquid is sprayed toward the inner surface of the platform door 100 from the injection port 46a (see FIG. 15) opened in the coating liquid injection pipe 46. Then, the coating liquid sprayed on the cleaning surface (inner surface) of the platform door 100, which has been wiped off and dried, suppresses the adhesion of dirt to the cleaning surface (inner surface) of the platform door 100, and the cleaning surface (inner surface). Is kept clean for a long time. After cleaning with the cleaning brush 3 while spraying the cleaning liquid is completed, the coating liquid may be sprayed on the inner and outer surfaces of the platform door 100 to finish the work as it is, or after that, the cleaning brush may be completed. 3 may be replaced with a drying brush to perform the drying operation.

On the other hand, if the cleaning surface (inner surface) of the platform door 100 is not confirmed to be dirty as a result of the determination in step S47 (step S47: No), "cleaning completed" is selected in the operation unit 59 (step S48). Subsequently, the "brush arm" of the operation unit 59 is selected (step S49). Then, the brush arm 18 contracts, and the cleaning brush 3 rotatably supported by the brush arm 18 returns to the initial position (position before cleaning).

Then, the operator selects "move" in the operation unit 59 (step S50), operates the operation lever 52 provided on the handle 51, and drives the pair of traveling motors 12 of the platform door cleaning device 1'. Then, when the platform door cleaning device 1'is moved from the platform door 100, the entire series of cleaning operations for the platform door 100 is completed.

As described above, in the present embodiment, the inner surfaces of the opening / closing door 100A and the vertical wall 100B of the platform door 100 are rotated by the rotation of the cleaning brush 3 that moves along with the self-propelled trolley 2 on the platform of the station along the platform door 100. Since the upper surface is cleaned, the effect that the inner surface and the upper surface of the platform door 100 can be cleaned efficiently and safely in a short time without requiring a lot of manpower can be obtained.

Further, after cleaning the home door 100 with the cleaning brush 3, the cleaning brush 3 is replaced with a drying brush for wiping, and the trolley 2 is self-propelled along the home door 100 while rotating the drying brush. The cleaning agent remaining on the cleaning surface of the door 100 after cleaning can be wiped off with a drying brush to dry the cleaning surface. In addition, the same effect as that obtained in the first embodiment can be obtained in the present embodiment as well.

In the present embodiment, as the cleaning brush 3, a columnar one composed of a brush shaft 3A and a brush body 3B attached to the brush shaft 3A is used, but instead of this cleaning brush 3. A rotating brush configured by making the belt conveyor vertical may be used.

<Embodiment 3>
Next, the details of the configuration of the platform door cleaning device according to the third embodiment of the present invention will be described below with reference to FIGS. 21 and 22.

The platform door cleaning device 1 ″ of the third embodiment omits the arm 57 and the camera 58 in the platform door cleaning devices 1 and 1 ′ of the first and second embodiments, and the platform door cleaning device 1 ″ thereof. As shown in FIG. 21 in which the plan view corresponds to FIG. 4 of the first embodiment, the basic configuration thereof is the platform door cleaning device 1 according to the first and second embodiments except that the arm 57 and the camera 58 are not provided. , 1'is the same as the configuration. Therefore, in FIGS. 21 and 22, the same elements as those shown in FIGS. 3 to 14 and 15 to 20 are designated by the same reference numerals, and the description thereof will be omitted below.

By the way, in the first and second embodiments, since the home door cleaning devices 1, 1'have the camera 58, the home door cleaning devices 1, 1'are moved to the cleaning start position of the home door 100. Regarding the recognition of the cleaning start position after the cleaning, the cleaning start position is recognized by the image captured by the camera 58, but in the third embodiment, the home door cleaning device 1 ″ is used as the home door 100. The recognition of the cleaning start position after moving to the cleaning start position is performed visually by the operator.

Then, while recognizing the cleaning start position, the operator selects "cleaning" or "coating" in the operation unit 59, further selects "fully automatic" or "semi-automatic" cleaning mode, and then selects "cleaning start". By doing so, cleaning of the platform door 100 is started, and cleaning of the platform door 100 is performed in the same procedure as in the first and second embodiments, but in the third embodiment, the cleaning is completed as follows. It is different from the first and second embodiments.

That is, as shown in the schematic plan view of FIG. 22 to end the cleaning of the platform door 100 of the third embodiment, in the third embodiment, the cleaning end board is located at the cleaning end position for cleaning the platform door 100. Bo is arranged. Then, as the cleaning of the platform door 100 progresses, the distance sensor 56 ′ installed in the platform door cleaning device 1 ″ to recognize the distance between the cleaning end board Bo and the platform door cleaning device 1 ″ is combined with the cleaning end board Bo. When the specific distance of the platform door cleaning device 1 ″ is recognized, or when the safety bar 54 of the platform door cleaning device 1 ″ comes into contact with the cleaning end board Bo, the ECU 7 determines the end of the cleaning work. As the 56', the distance sensors 56 of the first and second embodiments are used so as to be able to simultaneously measure the distance to the platform door and the distance to the object in the direction along the platform door. Alternatively, a distance sensor separate from the distance sensor 56 of the first and second embodiments may be used.

In addition, as another method of ending the cleaning or coating work, the cleaning movement distance of the home door cleaning device 1 ″ can be arbitrarily set on the operation panel, and the home door cleaning device 1 ″ is moved to the cleaning start position. The cleaning movement distance is set at the stage, and when the set distance is reached, the running is temporarily stopped, and if further cleaning is required, the cleaning is continued or the cleaning is performed to the end by manual control. It is also possible to do so.

In the present embodiment, the cleaning work of the platform door 100 can be automatically completed without using the camera 58, so that the number of parts can be reduced and "fully automatic" or "semi-automatic" cleaning can be performed at low cost. The effect of being able to do this is obtained.

The present invention is not limited to the embodiments described above, and various modifications can be made within the scope of claims and the technical ideas described in the specification and drawings. Of course, it is also possible to perform manual cleaning by an operator using the cleaning device of the present invention.

1,1 ′, 1 ″ Home door cleaning device 2 trolley 3 1st cleaning brush 3A 1st cleaning brush brush shaft 4 2nd cleaning brush 4A 2nd cleaning brush brush shaft 5,6 Electric motor (drive) source)
7 ECU (control means)
8 Injection means 9 Battery 11 Drive wheel 18 Brush arm 21 and 22 Neutral spring (Erasing means)
24 Telescopic cylinder (contact / detachment mechanism)
30 Long brush arm 35,36 Neutral spring (energization means)
38 Open / close motor 43 Tank 44,45 Cleaning liquid injection pipe 46,47 Coating liquid injection pipe 48 Cleaning liquid pump 49 Coating liquid pump 51 Handle 52 Operation lever 53 ON / OFF switch 54 Safety bar 55 Safety bar switch (contact detection means)
56, 56'distance sensor 58 camera 59 operation unit 60 remote control 100 platform door 100A platform door opening / closing door 100B platform door vertical wall

Claims (11)

It is a platform door cleaning device that cleans platform doors installed on the platform of a station.
A self-propelled trolley is configured by installing a cleaning brush rotatably supported by a vertical brush shaft, a drive source for rotationally driving the cleaning brush, and a control means for controlling the drive of the drive source. A home door cleaning device characterized by that. The platform door cleaning device according to claim 1, wherein the cleaning brush is detachably installed on the trolley. As the cleaning brush, a first cleaning brush that cleans the inside of the platform door and a movable second cleaning brush that is movable in a direction orthogonal to the traveling direction of the trolley and cleans the outside of the platform door. The platform door cleaning device according to claim 1 or 2, wherein the home door cleaning device is provided. The cleaning brush is supported so as to be swingable in the horizontal direction within a predetermined angle range and / or to be contactable and detachable with respect to the inner surface of the platform door, and urge the cleaning brush to a neutral position in the swing direction. The platform door cleaning device according to any one of claims 1 to 3, further comprising a force means and a contacting / detaching mechanism for bringing the cleaning brush into contact with the platform door. The traveling trolley is provided with a safety bar and a contact detecting means for detecting a person's contact with the safety bar, and when the contact detecting means detects a person's contact with the safety bar, the control means. The platform door cleaning device according to any one of claims 1 to 4, wherein the trolley is configured to stop the self-propelled movement and the rotation of the cleaning brush. The trolley is provided with an operation lever, and the control means is characterized in that the trolley is run / stopped or / and the cleaning brush is rotated / stopped by an ON / OFF operation of the operation lever. Item 6. The platform door cleaning device according to any one of Items 1 to 5. A platform door cleaning method using the platform door cleaning device according to any one of claims 1 to 6.
A platform door cleaning method, characterized in that the cleaning brush is rotated while the trolley is driven along the inside of the platform door of the platform of a station, and the platform door is cleaned by the cleaning brush. After opening the opening / closing door of the platform door and arranging the second cleaning brush on the outside of the platform door, the opening / closing door is closed and the first cleaning brush and the second cleaning brush are placed on the platform door. The platform door is rotated by rotating the first cleaning brush and the second cleaning brush while moving the trolley along the platform door of the platform while pressing the inner surface and the outer surface with predetermined surface pressures. The platform door cleaning method according to claim 7, wherein the inner surface and the outer surface of the door are cleaned at the same time. The platform door cleaning method according to claim 7, wherein the control means adjusts the surface pressure of the cleaning brush with respect to the cleaning surface of the platform door according to the supply current to the drive source. 7. The control means is characterized in that when the sensor detects a corner portion of the platform door, the traveling speed of the trolley is slowed down, or the trolley is self-propelled and the rotation of the cleaning brush is automatically stopped. The platform door cleaning method according to any one of 9 to 9. After disassembling the platform door cleaning device into a plurality of parts and transporting the platform door cleaning device to the home by an elevator of the home, the platform door cleaning device is assembled and traveled to the platform door at a speed faster than the speed at the time of cleaning. The platform door cleaning method according to any one of claims 7 to 10.

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