JP2856473B2 - Railing wall refreshing work vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a side wall surface (a steel plate painted surface) of a railing of a road (a continuous rigid protection wall provided on both sides of an elevated road to prevent a vehicle or the like from deviating from the road). , Concrete painted surface or concrete ground) and ground cover (connection structure with floor slab at base of railing)
The present invention relates to a railroad wall refreshing vehicle that automatically cleans or automatically paints while traveling along the surface of a vehicle.

[Conventional technology]

Concrete ground surfaces such as road railroads or painted surfaces of concrete or steel plate are polluted and deteriorated by frequent collisions with traffic vehicles, abrasion, exhaust gas, or mud splashing in rainy weather, and are frequently repaired.

Conventionally, this repair work has been performed in a manner that a work vehicle is subjected to groundwork treatment with a keren-gote, an electric rotating wire brush, a disk sander, or the like under a lane regulation at night and painted with a brush or a roller.

With the Keren method using hand tools, the processing quality of the treated surface is low and uniform treatment is difficult, and the work efficiency, including the hand coating method, is low, requiring long lane regulation and severe traffic congestion. Invited, has become a social problem. Against this background, there has been a strong need for automation of the repair work.

Conventional automatic repair methods include the open blast method, the washing method using a rotating brush, and the high-pressure washing method.All of these methods have the following difficult problems. Cannot be adopted,
No automation had yet been made. In other words, the base treatment by the open blast method with the open blast has a high blasting efficiency, but general vehicles cannot pass around in the vicinity due to the scattering of blast material. Another drawback is that a great deal of effort is required to prevent dust and to collect the used abrasive after use.

Rinse method using a rotating brush A rotating brush made of nylon or the like is attached to the front or side of the work vehicle to prepare the groundwork. There is still a problem in the treatment of water splashing, and it is not possible to perform cleaning while securing the traffic of general vehicles.

High-pressure water washing method This is a method of spraying high-pressure water with a pressure of more than 1000 kg / cm ² onto the target surface to perform ground treatment. Although the work efficiency is high, safety measures relating to the use of high-pressure water and measures for post-treatment of the used water are necessary, and in reality, it cannot be applied to the cleaning work on the high rails on the road. Further, when the target surface is a steel plate, there is a disadvantage that a process of adding a rust removing agent to high-pressure water and removing the rust removing agent from the treated wall surface is required, and the construction cost is increased.

Next, with regard to painting, the quality of the painted surface is affected by the skill of craftsmen in the hand painting method, it is difficult to ensure a certain level of quality, and the working capacity is low, so long lane regulation is required, Intense traffic congestion has caused social problems.

Under the above-mentioned background, there has been a high demand for automating the cleaning process and the painting process of the repair work in the high row.

An automatic cleaning device provided with a cleaning brush has been proposed in Japanese Patent Application Laid-Open No. Sho 60-26703 to protect the road side wall surface. In this device, the bogie moves along the wall surface due to the cross slope of the road, and there is no device for operating the cleaning brush exactly following the wall surface.

Also, Japanese Patent Publication No. 60-29310 discloses a self-propelled guardrail coating machine. In this coating machine, a self-propelled follow-up support mechanism provided with a suspension pulley that engages with the upper edge of the guardrail has been proposed, but there is no engagement guide member such as a guardrail on the railing. Further, since the bridge girder expands and contracts due to temperature change and mechanical deformation, the bridge located at the connecting portion between the bridge girder and the bridge girder is provided with a play space to absorb the amount of expansion and contraction. This mechanism cannot be applied to high-row painting because of the existence of such play spaces and projections such as bolts.

Note that Japanese Unexamined Patent Publication Nos. 60-253609 and 253610 disclose a guardrail cleaning vehicle having an automatic following mechanism, and an automatic following mechanism for following a rotating brush is disclosed. The swing mechanism about the vertical axis necessary to make the body adhere to the wall is not considered.

[Problems to be solved by the invention]

In view of the above-mentioned problems of the prior art, the present inventors have intensively studied and studied a work vehicle capable of performing work safely and efficiently cleaning and painting the railing wall surface efficiently and automatically.
As a result of repeated experiments, the present invention has been completed.

The present invention solves the problems of the conventional method, and in order to automate the repair work of the railing wall, civil engineering, construction,
In view of the fact that it is suitable to adopt the vacuum blasting method and spray coating method, which have a track record of construction in factories in the field of machinery, etc., and are several steps superior to the conventional technology in quality and durability, This is a railroad wall refreshing work vehicle that has a free-standing work vehicle and a polishing head or a painting head attached as a work head.

An object of the present invention is to provide such a novel device. This refreshing work vehicle comprises: (a) a cleaning device in which a work vehicle equipped with a vacuum blast device is equipped with a cleaning head and a copying device thereof. b) A work vehicle equipped with a coating device, which can be used as a dedicated work vehicle or a combined work vehicle equipped with a coating head and its copying device.

[Means for solving the problem]

That is, the railing wall refreshing work vehicle of the present invention is:
A road traveling vehicle, a work head extending perpendicular to the traveling direction of the traveling vehicle, a suspension device for suspending a constant load with respect to a vertical load of the work head, and holding the work head along a railing wall surface. And a copying apparatus.

This work vehicle preferably includes a meandering detection sensor for detecting meandering of the vehicle traveling on the road and an alarm device for issuing an alarm when the meandering occurs.

The copying apparatus according to the present invention will now be described. The copying apparatus always moves the working head (abrasion head or the painting head) to the railing wall when the working vehicle advances or retreats as the work proceeds. Hold in position,
Is to guide. The copying apparatus is mounted on a support frame fixed to a traveling vehicle, and a working head is connected to the copying apparatus so as to extend and contract. The working head is supported by both the copying apparatus and the suspending device, and includes working head support wheels that abut against the railing wall surface and the ground cover upper surface, respectively. The copying apparatus is configured by combining the following elements. A center rod vertically attached to the back surface of the working head, an air cylinder for urging the center rod in the axial direction, a support fixing frame for fixing the air cylinder to the vehicle body of the traveling vehicle, A vertically movable frame which is vertically movably mounted and through which the center rod slidably penetrates; and a horizontal telescopic pantograph which connects the vertically movable frame and the back surface of the work head.

With such a configuration of the copying apparatus, the working head has three-dimensional degrees of freedom of front, rear, up, down, left, and right while holding the opening of the working head in parallel with the center line of the working vehicle. Can completely follow the railing wall surface.

When the work head rear surface of the copying apparatus is connected to the center rod via a universal joint, the work head can be moved even when the center line of the work vehicle is not parallel to the railroad wall surface such as when a road is curved. It works well after.

When using the railroad wall refreshing work vehicle of the present invention as a cleaning work vehicle, the working head is a cleaning head for performing a cleaning process on the railroad wall surface, and the carrier of the work vehicle has a dust collecting device,
Abrasive material collection / supply device, fine dust collection device, blast head,
And a polishing unit consisting of a control panel and a lifting device. The cleaning head is mounted on a fixed support frame during operation. The equipment of the above-mentioned cleaning unit mounted on the carrier is loaded in a well-balanced manner under all working conditions and at the highest working efficiency. For example, the work vehicle is loaded so that it can safely operate at an inclination of 30 degrees from horizontal in any direction.

In addition, by making the equipment and vehicles used in the present invention as small as possible and weighing, it is possible to perform a highway refreshing work while securing traffic of general vehicles in the side lane as usual.

In particular, on urban expressways such as the Metropolitan Expressway, roads are built under severe location conditions using limited urban space, so there are various alignments and strong curved parts, Even in this case, traffic of general vehicles can be permitted by reducing the size of the work vehicle.

If the work vehicle becomes a large vehicle, qualified personnel for heavy vehicle operation will be required, and it will be difficult to secure the driver, but if it is a normal vehicle, it will be sufficient to secure the normally licensed personnel, and the equipment, vehicle cost etc. will be reduced I do.

A polishing head when the work vehicle of the present invention is used as a cleaning device will be described. The cleaning head includes a hollow dust-proof hood having an open end facing the railing wall, sealing means provided on the periphery of the opening, and a vertical inside the dust-proof hood in a plane parallel to the end facing the wall. A cleaning nozzle header disposed obliquely to an axis, a cleaning nozzle swinging device for rotating the cleaning nozzle header about its long axis, and a plurality of cleaning nozzles attached to the cleaning nozzle header And It is preferable that a fixed cleaning nozzle is attached to the lower end of the opening portion of the cleaning header at the lower end of the opening in order to reliably perform the cleaning to the lower end of the railing wall.

The cleaning nozzle may be either a pressure-type cleaning nozzle or a suction-type cleaning nozzle. The pressurized cleaning nozzle is a cleaning nozzle that includes a cleaning material pressurizing tank, pressurizes this tank with compressed air, transports the cleaning material to the cleaning nozzle, and ejects the compressed material with the compressed air. The suction-type cleaning nozzle uses a negative pressure generated by high-speed ejection of compressed air to suck the polishing material from the side of the cleaning nozzle, accelerates the compressed material with the compressed air in the cleaning nozzle, and jets the material. It is a sweep nozzle. The latter is more desirable in terms of reducing the weight of the device.

Seal between the blast head and the railing wall. It is preferable to use a rubber seal and a brush as the sealing means. Further, it is more preferable that the sealing means includes a rubber seal provided on the upper side of the opening and wider than that of the other side, and a brush superposed on the outside thereof.

In order to completely automate the above-mentioned polishing head, a collection passage for used polishing material and abrasive debris is provided, and used polishing material and polishing debris are passed through this collection passage. It is necessary to provide the secondary air intake required to feed into the collection and supply device. Further, a fine dust suction port is provided on the upper part of the polishing head.

Further, the supply section of the blasting material recovery / supply device for supplying the blasting material to the lapping head is provided with a hose takeout port connected to the blasting nozzle. Equipped with a secondary air regulating valve that can be regulated,
It is preferred to regulate the secondary air. Furthermore, it is perfect if the polishing head has a scraper for scraping the polished material spilled on the ground cover of the railing, and a suction port for collecting the polished material collected by the scraper.

When the cleaning head and the railing wall are separated from each other, it is necessary to shut off the injection of the cleaning material. Providing such a device is recommended for safety and other reasons.

Next, the case where the refresh work vehicle of the present invention is used as a coating device will be described.

In this case, the working head is a coating head for coating the railing wall surface. In the case of painting equipment,
Equipped with paint tank, paint pump, compressor, painting head and operation control panel, and suspension device.

A plurality of spray nozzles arranged in a vertical direction or one or a plurality of spray nozzles which can reciprocate up and down along a vertical guide are provided in the coating head. A plurality of spray nozzles arranged in the vertical direction have a flat spray pattern with a long vertical direction and a short horizontal direction, and a plurality of rows of spray nozzles that reciprocate up and down have a flat spray pattern with a long horizontal direction. It is good to do. If the spray patterns of the plurality of spray nozzles are arranged at intervals such that a part thereof overlaps with each other, the operation can be performed with high efficiency.

The coating head is equipped with an opening having a side having a length substantially equal to the height of the balustrade wall and a filter for filtering the paint mist around the opening to prevent the mist from scattering.

In addition, the coating head is provided with wheels that contact the railing wall surface and wheels that contact the ground covering surface to perform positioning.

Equipped with a brush for blocking airflow in the running direction on the side piece of the opening of the coating head, and equipped with a plate-shaped mist stopper that can move up and down in contact with the upper end of the row on the upper side of the opening. It is preferable to equip the outside with a brush.

By providing a plurality of pipes between the spray nozzle and the paint tank, it is possible to minimize a portion to be cleaned by a thinner when the paint is switched, thereby shortening a time required for cleaning the pipes.

[Action]

The railroad refreshing work vehicle of the present invention is a vehicle traveling on the road,
A working head extending perpendicular to the traveling direction of the traveling vehicle, a suspending device for suspending and supporting most of the vertical load of the working head, and a copying device for holding the working head along the railing wall surface. With this configuration, the work head can be accurately moved along the railing wall of the road while traveling by itself, and the cleaning operation and the painting operation can be performed independently or continuously and efficiently automatically.

The column refreshment work vehicle of the present invention is, of course, when the road is straight and the column wall surface is flat, the working head properly follows the column wall surface, but of course, even when the road is curved It can be handled without any problems.

FIG. 2 illustrates a locus of a curved railroad where the road is to be cleaned or painted.

The curved portion wall of the railing 9 are curved radius of curvature R _o, vehicle width b, wheelbase a, the front overhang four-wheel vehicle is the length c and made to travel along the railing wall. The work head (not shown) needs to swing its head to the left and right, and needs to protrude out of the vehicle body. And
The required swing angle φ and the required projection length are determined by the radius of curvature of the railing wall surface and the width and length of the vehicle body.

Automobile is the maximum radius R _o and the minimum radius R _i of the trajectory of the curve the vehicle body draw when turning a curve given by the following equation (Metropolitan Expressway design guidelines.) Where R _o : the largest radius of the circular locus where the car body curves R _i : the smallest radius of the circular locus where the car body curves a: wheel base b: vehicle width c: forward from the front wheel vehicle overhang length on expression, the arrow next to the angle of the tip of the car with a radius of curvature R _o 90
When traveling in the direction, the trajectory 91 of the vehicle body surface point P of the inner ring of the rear wheel is pulled by the wheels before proceeding curved means to curve with a radius of curvature R _i around the same center of curvature Q.

In the present invention, in such a running state, when the work head moves along the railing wall surface, the work head can be moved back and forth orthogonally to the running direction of the work vehicle, and the work head can be swung horizontally. With the pantograph and the copying machine equipped with a universal joint provided on the center rod, the user travels while holding the opening surface of the work head against the wall along the radius of curvature of the railing wall, and works. Can be.

The high-efficiency work using the railroad refreshing work vehicle of the present invention eliminates the need for long-time lane regulation and facilitates maintenance of the railroad.

〔Example〕

Next, an embodiment of a row refresh work vehicle of the present invention will be described in detail with reference to the drawings. The present invention is not limited by these examples, but only by the description in the claims.

Embodiment-1 FIG. 1 shows an overall three-view drawing of an embodiment during a cleaning operation using a high-row refreshing work vehicle of the present invention as a cleaning device.

A truck is used as the work vehicle 1, and a vacuum blast unit including a dust collecting device 2, a blasting material collecting / supplying device 3, a fine dust collecting device 4, a blasting head 5, and a control panel 6, and a suspending device 7 are placed on the carrier. It is installed. Further, a copying apparatus 8 that supports the cleaning head 5 is mounted on the front of the driver's seat. The lapping head 5 is mounted on the copying apparatus 8 when traveling while lapping the row 9, and is mounted on the bed 1 during normal traveling other than the lapping operation. FIG. 1 shows a state in which the cleaning head 5 is pressed against the wall surface of the column 9 by the copying apparatus 8 to clean the wall surface of the column.

The device 50 surrounded by a dashed line in FIG. 1 is a device for painting work. A coating head can be attached to the copying apparatus 8 in place of the cleaning head 5, and a coating operation can be performed using coating equipment. In Fig. 1
Although the work vehicle is used for both painting and painting, it is also possible to use a work vehicle for exclusive use.

 The copying apparatus 8 will be described.

On the vehicle body side of the working vehicle of the embodiment, an extension chassis 27 of the working vehicle is extended in front of the driver's seat, and a support fixing frame 28 is attached to the extension chassis 27, and the cleaning head 5 is moved to the side of the support fixing frame 28. The copying apparatus 8 is mounted between the cleaning head 5 and the support fixing frame 28.

FIG. 3 shows the copying apparatus 8 (a) is a plan view,
(B) is a side view.

The copying apparatus 8 holds the cleaning head 5 in close contact with the railing wall surface, and enables the work vehicle to perform the cleaning operation while traveling. The copying apparatus 8 mainly includes a rodless air cylinder 29, a center rod 23, and a pantograph 26.

A rodless air cylinder 29 is fixed to the center of the support fixing frame 28, and its saddle 30 moves in the vehicle width direction, that is, the direction in which the polishing head is pressed against the railing wall surface.

FIG. 4 (a) is a perspective view of a rodless air cylinder 29. The rodless air cylinder 29 is fixed to a support fixing frame 28 (not shown), and a leg of a saddle 30 of the rodless air cylinder 29. 34 has an elongated hole 35 through which a pin 33 passes, and the pin 33 is connected to an end of the center rod 23.
The rodless air cylinder 29 has a function of allowing the saddle 30 to move in the axial direction of the center rod 23, and presses the polishing head against the balustrade wall surface. As a result, the polishing head 5 is pressed against the railing wall surface with a constant pressing force within the meandering range of the working vehicle.

FIG. 4 (b) shows a main part of the air cylinder adjusting device. The main pressure is adjusted by a pressure adjusting valve 77 while looking at a pressure gauge 76. 79 is an air operating lever, and 78 is a mist separator.

FIG. 5 is a perspective view showing the center rod 23, the vertically moving frame 25, and the pantograph 26.

The center rod 23 is attached via a universal joint 24 substantially at the center of the back surface of the cleaning head 5. pantograph
Numeral 26 connects the cleaning head to the vertically movable frame 25 so as to be extendable and contractible. The vertically moving frame 25 has a plate shape in this embodiment. The vertical movement frame 25 has drop rods 31 on both sides. This drop rod 31 is slidable up and down on a vertical pipe 32 attached to a support fixing frame 28,
It is fitted outside. A spring is inserted into the bottom of the pipe 32, and the lower end of the drop rod 31 is supported by the spring.

The vertical movement frame 25 has a hole at the center thereof, and the center rod 23 is slidably penetrated in the axial direction.

Therefore, the cleaning head is coupled to the support fixing frame 28 so as to be movable in the vertical and horizontal directions.

FIG. 6 is a perspective view showing a portion where the center rod 23 penetrates the vertically movable frame 25. As shown in FIG. 10, when the cleaning head 5 is lifted from the carrier of the working vehicle and mounted on the support fixed frame 28, the cleaning head 5 and the vertical moving frame are moved.
25 and must be fixed. For this purpose, as shown in FIG.
7 and a hook removal handle 36, and the hook 37 is locked by being hooked to a hook 38 provided on the polishing head 5 side. As shown in FIG. 10, the dropping rod 31 of the vertically moving frame 25 of the polishing head lifted and the pipe of the fixed frame 28 are supported.
After the hook 32 is engaged with the hook 32, the hooks 36 and 38 are operated to release the hooks 37 and 38. After this, sleeve 25
The center rod 23 is inserted into a, and the center rod 23 is fixed to the back surface of the polishing head 5 by the cotter pin 39.

Next, as shown in FIG. 4, when the saddle of the rodless air cylinder 29 is connected to the center rod 23, the copying apparatus is activated.

Since the copying apparatus 8 is configured as described above, the opening portion 13 of the cleaning head is always in close contact with the wall surface with a constant pressing force even when the wall surface is uneven or when the working vehicle is slightly meandering.

The cleaning head 5 is a wheel that rotates in contact with the wall
20 and a wheel 12 that rotates in contact with the ground cover upper surface. Due to the interaction between the copying apparatus 8 and these wheels 20 and 12, even if there are irregularities on the road surface, inclination in the width direction of the working vehicle, or cuts in the ground covering surface, etc.
Can automatically follow the turning, inclination, etc. of the vehicle, and can be prevented from separating from the wall surface. Therefore, it is possible to perform clean and efficient automatic cleaning without scattering dust to the outside and polluting the environment.

In order to prevent the blasting of the blasting material and dust when the blasting head 5 is detached from the wall surface, an emergency shutoff device for blasting the blasting material is preferably provided. The touch sensor 49 shown in FIG. 7 is a variable roller bar type device according to an embodiment for detecting when the wall of the polishing head 5 and the railing 9 are separated from each other. The sensing device may utilize other types, for example, ultrasound or optical sensors. Injection of the abrasive is cut off by a signal from such a detection device.

Next, the suspension device will be described. In the device of the present invention,
As shown in FIG. 1, most of the vertical load of the cleaning head 5 is suspended by a suspension device 7 via a balancer 11.

FIG. 9 shows the configuration of an embodiment of such a device, in which an object 64 having a weight W is suspended by a suspension device 7 via a suspender 63 provided with a balancer 11 and a spring scale 65, and the balancer 11 is Measure the balance load. If the balance load of the balancer 11 is set to a constant value slightly smaller than W, the suspending device 7 suspends most of the vertical load of the weight W. FIG. 10 shows a state in which the cleaning head 5 is hung by the hanger 63. FIG. 11 shows an external view of such an embodiment of the spring balancer 11, which is a modified pulley device.

During the cleaning operation, the cleaning head 5 has a
12 is in contact with the ground cover 10, and the upper end is suspended by the suspension device 7 via the spring balancer 11, so that most of the weight is suspended by the suspension device. I do.

As shown in FIG. 8, it is recommended that the suspension device 7 be provided with a stopper 62 for fixing the boom 61 of the suspension device 7 in a fixed position. FIG. 8 is a perspective view of a main body of the suspension device 7.

In addition, when the work vehicle meanders and the distance between the vehicle body and the wall surface is out of a predetermined range, a meandering detection sensor is provided so as to detect this and issue a warning to the driver, and when this sensor detects the meandering, More preferably, an alarm device for issuing an alarm is provided.

Next, the polishing head 5 of the embodiment will be described in detail.

The front, back and side perspective views of the cleaning head 5 are shown in FIG.
This is shown in FIGS., 13 and 14.

The cleaning head 5 has a height substantially equal to the height of the railing 9, and uses a substantially rectangular parallelepiped dust-proof hood 14 having an opening 13 on an end face facing the railing wall as an outer frame. A rubber seal 15 on the plate is attached so as not to escape outside. In order to enhance the prevention of dust leakage, a brush is placed on the rubber seal 15 over the castle
More preferably, 16 is provided.

As shown in FIG. 12, a nozzle header 17 is provided inside the dustproof hood 14 at an angle to the vertical direction in a plane parallel to the opening surface of the hood 14, and the upper end of the nozzle header 17 is It is attached to a swing device 18 which is equipped outside. The oscillating device 18 can rotate the nozzle header 17 around its axis within a predetermined angle range. A plurality of cleaning nozzles 19 are attached to the nozzle header 17.

FIG. 15 shows an arrangement diagram of the cleaning nozzle 19. Abrasive nozzle 19
Are equally spaced so that the center direction 21 of the swing angle range is in a direction substantially perpendicular to the opening surface of the hood 14 and the cleaning patterns 22 of the respective cleaning nozzles overlap each other when viewed from the side of the hood 14. It is installed in parallel with. Further, a fixed blast nozzle 40 is disposed below the lapping head 5 and separate from the above-mentioned blast nozzle group for lowermost lapping of a row.

When the working vehicle travels by the above cleaning nozzles 19 and 40, the cleaning patterns of the cleaning nozzles 19 and 40 are overlapped, so that the entire area of the railing wall surface can be quickly and uniformly cleaned in one run, Work efficiency is greatly improved.

In order to reduce the weight of the cleaning head, suction nozzles are used for the cleaning nozzles 19 and 40, and a cleaning material supply hose 41 is individually connected to each of the cleaning nozzles 19 and 40 (FIG. 12). reference). These hose groups 41 are bundled and penetrate upward from the upper surface of the dustproof hood 14 of the cleaning head 5, and as shown in FIG. 16, the collection and supply of the cleaning material placed on the bed of the working vehicle. It is connected to an outlet 42 provided at the lower end of the device 3. The outlet 42 is provided with a secondary air regulating valve 43 that can independently adjust the supply amount of the cleaning material to each of the cleaning nozzles 19 and 40. Therefore, it is possible to independently adjust the amount of the abrasive material sprayed for each of the cleaning nozzles for each nozzle, and it is possible to set stable polishing conditions.

As shown in FIG. 13, the polishing head 5 has a collection passage 44 for the used abrasive material and the swarf at the lower portion thereof.
Hose (not shown) for used abrasive and scrap from 44
Then, the material is sucked into the abrasive material collection / supply device 3 on the work vehicle 1, the abrasive material is returned to the supply side, and the abrasive waste is sent to the dust collecting device 2.
In order to perform this discharge more efficiently, as shown in FIG. 12, a secondary air intake port 45 opened to the outside is provided at the upper part of the polishing head 5 to take in the air using the negative pressure in the hood 14. Slip the air through duct 46 at the bottom of duct 46
It is more preferable that the used abrasive material and the abrasive dust are sent to the abrasive material collection / supply device without being accumulated at the lower end of the abrasive head 5 by jetting from the 47.

Inside the hood 14 of the polishing head 5, fine dust is suspended in addition to the used cleaning material and the polishing dust. In order to discharge them, a fine dust suction port 48 is provided at the upper part of the hood 14 as shown in FIG. The fine dust collected from here is guided to the dust collecting device 2 via the fine dust collecting device 4 by a hose and collected.

Still more preferably, as shown in FIG. 18, a scraper 66 for sweeping and collecting the cleaning material spilled on the ground cover 10 is elastically adhered to the ground cover by the arm 68 behind the polishing head 5 in the traveling direction. It is preferable to provide a suction port 67 for recovering the abrasive material swept and collected by the scraper 66.

Embodiment-2 FIG. 19 shows an overall view when a railroad wall surface refreshing work vehicle 1 of the present invention is used as a painting apparatus.
(A) is a plan view, (b) is a side view, and (c) is a front view.

A paint tank 52, a paint pump 53,
Control panel 54, compressor 55, suspension device 7, painting head 57
And a copying apparatus 8 for supporting the coating head 57 in front of the driver's seat. The painting head 57 is attached to the copying apparatus 8 when traveling while applying the painting to the row 9 and is mounted on the bed during normal traveling other than the painting operation.

The carrier of the work vehicle shown in FIG. 19 has the cleaning equipment 51 mounted thereon as shown in FIG. 1, and shows the carrier on which all the coating and cleaning equipment is loaded. . As described above, it is also possible to provide a work vehicle in which painting and cleaning are separately performed.

Since the coating head copying apparatus 8 and the suspension apparatus 7 are the same as those described in the first embodiment, description thereof will be omitted.

 The painting head 57 will be described.

FIG. 20 is a front perspective view of the coating head, FIG. 21 is a rear view of the coating head, and FIG. 22 is a partially cut plan view of the coating head.

The coating head 57 is in contact with the railroad wall surface and the ground cover upper surface by four wheels 59 that contact the railroad wall surface and two wheels 60 that contact the ground cover upper surface.

A vertical guide 71 is provided on the coating head 57, and the guide 71
A power device 72 is provided at the lower end of the device, and a spray nozzle support member 73 is attached to the guide 71 so as to be vertically slidable along the guide 71. As shown in FIG. 24 (a), the spray nozzle support bracket 73 is connected to the power unit 72 by power transmission means such as a chain, and reciprocates up and down along the guide 71 by operating the power unit 72. Two spray nozzles 74 and 75 are attached to the spray nozzle support 73 so that the distance between the nozzles can be adjusted. spray nozzle
As shown in FIG. 24 (b), the spray pattern of 74, 75 is obtained by combining the vertical movement of the spray nozzles 74, 75 and the traversing movement of the work vehicle. Draw the spray nozzles 74, 7 at such a distance that these trajectories 101, 102 partially overlap each other.
It is possible to adjust the distance between the five.

Instead of the mechanism for moving the spray nozzle up and down as shown in FIG. 24, as shown in FIGS. 25 (a) and (b), a plurality of spray patterns 106, 107 and 108 which are flat in the vertical direction are provided. The spray nozzles 103, 104, 105 may be fixedly arranged in the vertical direction at intervals such that the long-axis ends of the spray patterns 106, 107, 108 overlap each other.

The coating head 57 has an opening 80 having a side having a length substantially equal to the height of the wall surface of the railing 9 and a filter 81 for paint mist around the opening. Equipped with 82. Further, a running direction airflow blocking brush 83 (see FIG. 20) is attached to the side of the opening 80 to prevent the mist from flowing out in the lateral direction. In order to prevent the mist from scattering to the upper part, a plate-shaped mist stopper that can move up and down freely is provided on the upper side of the opening 80 in contact with the upper end of the rail, and a brush 84 (see Fig. 20) is mounted on the outer side of the stopper. ing. By doing so, it has become possible to perform the coating up to the upper end of the railing uniformly in one run.

FIG. 23 shows a perspective view from the back of the spray nozzle support. The part that fixes the spray nozzles 74 and 75 to the spray nozzle support bracket 73 is a rotatable arm so that the spray nozzle tip can be replaced quickly.
A gap 86 is provided on the back surface on both sides of the guide 71 so that the spray nozzles 74 and 75 can pass through when the arm 85 is inverted. Thus, the tips of the spray nozzles 74 and 75 can be replaced from behind the coating head 57. Also, a positioning stopper is provided so that the spray nozzles 74 and 75 can be quickly returned to their original positions after the tips of the spray nozzles 74 and 75 are replaced.

In the present embodiment, most of the piping between the spray nozzles 74 and 75 and the paint tank 52 on the work vehicle has two lines. This is because when switching the type of paint, there is a concern that spray nozzle clogging may occur due to insoluble solids due to the difference in compatibility between the paint and the thinner. This is for shortening the required time.

The coating head 57 is configured to be capable of continuous coating while maintaining a constant positional relationship with the wall surface by the copying apparatus 8 as described above. However, if the radius of curvature of the wall surface is small, The edge may come into contact with the wall and damage the painted surface. In consideration of such a case, a narrow sled-shaped plate or a small wheel (not shown) is provided on the rear side of the coating head 57 at a position where it does not come into contact with the wall surface during normal construction.
More preferably,

In addition, in order to prevent paint and dust from being scattered due to the detachment of the coating head 57 from the wall surface in some cases, it is preferable to provide a hood detachment detection sensor (light or ultrasonic sensor) and an emergency shutoff device for spray. It is preferable that a meandering detection sensor and an alarm device be provided so that when the distance of the vehicle falls outside a predetermined range, this is detected and an alarm is issued to the driver.

〔The invention's effect〕

With the work vehicle of the present invention, it is possible to continuously and automatically apply a vacuum polishing method capable of providing a high-grade finished surface without scattering of dust in the underlaying of a railing on a road. . In addition, continuous automatic painting on the railroad has become possible.

The work vehicle of the present invention is extremely effective in terms of safety measures, and can perform work while permitting ordinary vehicles to travel on the road.

This eliminates the need for long lane restrictions at night,
Traffic congestion is greatly reduced, and the entire surface of the railing can be cleaned and painted efficiently and labor-saving.
The service life of the coating film is extended as compared with the conventional one, the stable coating film quality is secured, and the technical and social contributions are great.

Further, the copying apparatus which is a part of the present invention can be widely applied to technologies in various fields as a general wall copying mechanism.

[Brief description of the drawings]

FIG. 1 shows an embodiment in which the railroad wall refreshing work vehicle of the present invention is used as a cleaning device, (a) is a plan view,
(B) is a side view, (c) is a front view, FIG. 2 is a plan view of the operation of the working vehicle when the railing is curved, FIG. 3 is (a) a plan view of the copying apparatus, and (b) side view. 4 (a) is a perspective view of an air cylinder of the copying apparatus, FIG. 4 (b) is a perspective view of a control device of the air cylinder, FIG. 5 is a perspective view of a pantograph portion of the copying apparatus, and FIG. FIG. 7 is a perspective view of a vertically moving frame portion of the copying apparatus, FIG. 7 is a perspective view of one embodiment of the touch sensor, FIG. 8 is an explanatory view of a main body of the suspending apparatus, FIG. FIG. 10 is a perspective view showing the lifting operation, and FIG.
Fig. 12 is a perspective view of the balancer, Fig. 12 is a front view of the polishing head, Fig. 13 is a rear view of the polishing head, Fig. 14 is a lateral perspective view of the polishing head, and Fig. 15 is the inside of the cleaning head. (A) is a front view, (b) is a side view, (c) is a plan view, FIG. 16 is a partial perspective view of a polishing recovery and supply device, and FIG.
FIG. 18 is a perspective view of the head of the cleaning head, FIG. 18 is an explanatory view of a scraper, FIG. 19 shows an embodiment in which a railroad wall refreshing work vehicle of the present invention is used as a painting apparatus, and FIG. Figure, (b) is a side view, (c) is a front view, Figure 20 is a front view of the coating head, Figure 21 is a rear view of the coating head,
Fig. 22 is a partially cut plan view of the coating head, Fig. 23 is a perspective view of a spray nozzle portion in the coating head, Fig. 24 is (a) a perspective view of a vertically moving spray nozzle, and (b) is the coating. FIG. 25 is a perspective view of the spray nozzles arranged side by side in the vertical direction, and FIG. DESCRIPTION OF SYMBOLS 1 ... Work vehicle 2 ... Dust collecting device 3 ... Abrasive material collection and supply device 4 ... Fine dust collection device 5 ... Sweeping head, 6 ... Control panel 7 ... Hanging device, 8 ... Copying device 9… Pane, 10… Ground cover 11… Balancer, 12… Wheel 13 …… Opening, 14… Dustproof hood 15… Rubber seal, 16… Brush 17 …… Nozzle header, 18 …… Pivot device 19: Cleaning nozzle, 20: Wheel 22: Cleaning pattern 23: Center rod 24: Universal joint 25: Vertical movement frame 26: Pantograph 27: Chassis 28: Support fixed frame 29 ... Air cylinder 30 ... Saddle, 31 ... Rod 32 ... Pipe, 33 ... Pin 34 ... Leg fittings, 35 ... Long hole 36 ... Handle, 37 ... Hook 38 ... Hook, 39 ... ... cotter pin 40 ... fixed nozzle, 41 ... hose 42 ... outlet 43 ... secondary air regulating valve 44 ... collection passage, 45 ... air intake Mouth 46 duct duct 47 slit 48 dust suction port 49 touch sensor 50 coating equipment 51 cleaning equipment 52 paint tank 53 pump 54 ... Control panel, 55 ... Compressor 57 ... Painting head, 59 ... Wheels 60 ... Wheels, 61 ... Boom 62 ... Stopper, 63 ... Hanging tool 64 ... Object, 65 ... Spring scale 66 ... Scraper, 67 Suction port 68 Arm, 71 Guide 72 Power unit 73 Support bracket 74 Spray nozzle 75 Spray nozzle 76 Pressure gauge 77 Pressure control valve 78 … Mist separator 79… Air actuating lever 80… Opening, 81… Filter 82… Fan 83… Brush 84… Brush 85… Arm 86… Gap 90… Travel direction 91… … Inner trajectory 101,102,106,107,108 …… Coating pattern 103,104,105 …… Spray nozzle

──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Kimura No. 1 Kawasaki-cho, Chiba City, Chiba Prefecture Kawasaki Steel Corporation Third Annex Building (72) Inventor Shigetake Kawashima 1-19-113 Ginza, Chuo-ku, Tokyo Japan Highway Service Co., Ltd. (72) Yoshihiro Ohba, Inventor Ryokan Oba 1-1-19-13 Ginza, Chuo-ku, Tokyo Japan Highway Service Co., Ltd. (72) Inventor Yasuo Yoshimura 1140 Mitsushima, Kazuma, Osaka Prefecture (72) Inventor Satoshi Hamada 1140 Mitsushima, Kazumasa, Osaka Prefecture 2 Inside Atsushi Tekko Co., Ltd. (72) Inventor, Toshiaki Goto 2-5-19, Hamanaka-cho, Hyogo-ku, Kobe-shi, Hyogo Pref. Patent Akira 63-251506 (JP, A) JP Akira 60-253609 (JP, A) Tokuoyake Akira 60-29310 (JP, B2) (58 ) investigated the field (Int.Cl. ^6, DB name) E01H 1/00-1/08 E01D 19/10 B05B 17/00

Claims (28)

(57) [Claims] 1. A vehicle running on a road, a work head extending perpendicularly to a traveling direction of the vehicle, a suspension device for suspending a constant load corresponding to a vertical load of the work head, and A railing surface wall refreshing work vehicle, comprising a copying apparatus that holds the object following a wall surface. 2. A sensor for detecting meandering of a vehicle traveling on a road;
2. The railroad wall refreshing work vehicle according to claim 1, further comprising an alarm device that issues an alarm according to a signal from the sensor. 3. The copying apparatus according to claim 1, wherein the copying apparatus includes a center rod vertically attached to a back surface of the work head, an air cylinder for urging the center rod in an axial direction, and fixing the air cylinder to a vehicle body of a traveling vehicle. A supporting / fixing frame, a vertically moving frame which is vertically movably attached to the supporting / fixing frame and slidably penetrates the center rod, and a horizontal telescopic pantograph which connects the up / down moving frame and the back surface of the working head. The railroad wall surface refreshing work vehicle according to claim 1 or 2, wherein: 4. The railroad wall refreshing work vehicle according to claim 1, wherein the work head has wheels that respectively contact the railroad wall surface and the upper surface of the ground cover. 5. The railroad wall refreshing work vehicle according to claim 3, wherein the copying apparatus has a universal joint between the back surface of the work head and the center rod. 6. The railroad wall refreshing work vehicle according to claim 1, wherein the work head is a polishing head for performing a cleaning process on a railroad wall surface. 7. The cleaning head has a hollow dust-proof hood having an open end face facing a wall, a sealing means provided on a peripheral edge of the opening, and an inside of the dust-proof hood parallel to the opposed end face. A nozzle header arranged obliquely with respect to the vertical axis,
7. A railing wall surface refreshing work according to claim 6, further comprising: a cleaning nozzle oscillating device for rotating the nozzle header around its long axis; and a plurality of cleaning nozzles attached to the nozzle header. car. 8. The railroad wall refreshing work vehicle according to claim 7, wherein the cleaning head has a fixed cleaning nozzle at a lower end of the opening. 9. A railroad wall surface refreshing work vehicle according to claim 7, wherein the polishing nozzle is a suction nozzle. 10. The railroad wall refreshing vehicle according to claim 7, wherein said sealing means comprises a rubber seal and a brush. 11. The railroad wall surface refreshing work vehicle according to claim 10, wherein the sealing means includes a rubber seal wider than that of another piece provided on the upper side of the opening and a brush superposed on the outside thereof. 12. The polishing head according to claim 1, further comprising a collecting passage for collecting used abrasives and swarf at a lower portion thereof, and for collecting used abrasives and swarf through the collecting passage. The railroad wall refreshing vehicle according to any one of claims 6 to 11, wherein the vehicle has a secondary air intake required for feeding into the supply device. 13. The railroad wall refreshing work vehicle according to claim 6, wherein the cleaning head has a fine dust suction port on an upper part thereof. 14. The railroad wall refreshing work vehicle according to claim 12, wherein the cleaning head has a fine dust suction port on an upper part. 15. A secondary air control valve, wherein said cleaning material recovery / supply device has a hose outlet connected to said cleaning nozzle, and the outlet is capable of adjusting the supply amount of the cleaning material for each nozzle. 15. The railroad wall surface refreshing work vehicle according to claim 12, comprising: 16. The cleaning head according to claim 16, further comprising: a scraper for scraping the polished material spilled on the ground cover of the railing; and a suction port for collecting the scraped polished material.
The railroad wall refreshing work vehicle described in any of 12 to 15. 17. The apparatus according to claim 6, further comprising a device for interrupting the injection of the abrasive material when the separation between the polishing head and the railing wall surface is detected.
A railroad wall refreshing vehicle according to any of 16 above. 18. The railroad wall refreshing work vehicle according to any one of claims 1 to 5, wherein said work head is a painting head for painting a railroad wall surface. 19. A coating head provided with a plurality of spray nozzles arranged in a vertical direction or one or a plurality of spray nozzles which can reciprocate up and down along a vertical guide. A railroad wall refreshing vehicle according to item 18. 20. A railing wall according to claim 19, wherein said spray nozzle has a flat spray pattern, and a plurality of spray nozzles arranged at intervals so that a part of said spray pattern overlaps with each other. Refresh work vehicle. 21. An apparatus according to claim 21, wherein said coating head is provided with an opening having a side having a length substantially equal to the height of a railing wall, and a filter for collecting paint mist around said opening. Railroad wall refreshing work vehicle described on 18, 19 or 20. 22. The railroad wall refreshing vehicle according to any one of claims 18 to 21, wherein the painting head is provided with a running direction airflow prevention brush on a side of an opening thereof. 23. A railing wall according to any one of claims 18 to 22, wherein said coating head is provided with a vertically movable movable plate-like mist stopper in contact with an upper end surface of the railing on the upper side of the opening. Refresh work vehicle. 24. The column wall refreshing work vehicle according to claim 23, wherein a brush is provided so as to overlap the outside of the mist stopper. 25. A railroad wall refreshing vehicle according to any one of claims 19 to 24, wherein a plurality of pipes are provided between the spray nozzle and the paint tank. 26. A fitting for supporting the spray nozzle,
26. The spray head according to claim 19, further comprising a rotatable arm for fixing the spray nozzle, and a gap on the back surface of the coating head, through which the spray nozzle can pass when the arm is inverted. Railroad wall refreshing work vehicle. 27. A narrow sled-shaped plate or a small wheel is provided on a rear side of the coating head.
A railroad wall refreshing vehicle described in any one of ~ 26. 28. A railing wall refreshing vehicle according to any one of claims 18 to 27, further comprising a device for shutting off spraying when the coating head and the railing wall are separated by a predetermined distance or more.