JP5362455B2 - Road surface paint application equipment - Google Patents

Description

  The present invention relates to a road surface paint coating apparatus that is provided in a vehicle traveling on a road surface and draws a road surface line by applying road surface paint on the road surface as the vehicle travels.

  When drawing road surface lines such as road signs, lane markings, and letters on the road surface, paints for road surfaces such as oil paints and water-based paints obtained by mixing pigments with color developing agents (medium for dispersing and developing pigments) A road surface paint coating apparatus is used for coating the road surface. Such a road surface paint coating apparatus includes a paint discharge device that is provided on a side portion of a vehicle traveling on the road surface and discharges the road surface paint toward the road surface, and on the road surface as the vehicle travels. The thing which apply | coats the road surface paint in a line form is known. For example, those described in Patent Document 1 and Patent Document 2.

  When the road surface paint is applied in a line shape on the road surface by the road surface paint application device, the vehicle is driven such that the application position by the paint discharging device is along a target line previously drawn on the road surface. . Specifically, the predicted position in the line width direction of the road surface paint to be applied onto the road surface by the paint discharging device when the vehicle goes straight ahead is indicated respectively on the road surface ahead of the application position by the paint discharging device and immediately before the application position. For example, a front guide and a rear guide provided in the vehicle are used. For example, when a straight road surface line is drawn, the predicted positions indicated by the front guide and the rear guide are respectively along the target line. When the vehicle is driven and a curved road surface line is drawn, the vehicle is driven such that the predicted position indicated by the rear guide is along the target line. At this time, the positional relationship between the front guide and the rear guide and the target line is confirmed directly from the driver seat on the side where the front guide and the rear guide are provided in the width direction of the vehicle or by a mirror or the like.

JP 2000-352009 A JP 2000-352010 A

  By the way, when the road surface paint is applied by the paint discharging device provided on the side opposite to the driver seat side of the vehicle in the width direction of the vehicle, the front guide and the rear guide from the driver seat. There is a problem that it is difficult to visually confirm whether or not the predicted positions pointed to each coincide with the target line.

  On the other hand, when the paint discharging device is conventionally provided on the side opposite to the driver's seat side of the vehicle, the second driving is performed on the side opposite to the driver's seat side, that is, on the side where the paint discharging device is provided. A seat was added, and the vehicle was being driven while confirming whether the predicted positions pointed to by the front guide and the rear guide respectively coincide with the target line from the second driver seat. However, there is a problem that it takes a lot of cost to modify the vehicle for adding the second driver's seat.

  The present invention has been made against the background of the above circumstances, and the purpose of the present invention is to provide a front guide and a rear guide from the driver seat on the side opposite to the side where the paint discharging device is provided in the width direction of the vehicle. It is an object of the present invention to provide a road surface paint coating apparatus capable of confirming whether or not the predicted positions to be pointed coincide with target lines.

  In order to achieve the above object, the gist of the invention according to claim 1 is as follows: (1) A paint discharge device that is provided on a side portion of a vehicle traveling on a road surface and discharges road surface paint toward the road surface. A road surface paint application device for applying a road surface paint in a line on the road surface as the vehicle travels. (2) The paint discharge device is arranged in the width direction of the vehicle. (3) fixed to the vehicle so as to be positioned on the vehicle front side of the paint discharge device, and when the vehicle goes straight, the paint discharge device A front guide for instructing a predicted position in the line width direction of the road surface paint to be applied on the road surface on the road surface in front of the application position by the paint discharge device; and (4) the front guide. A front camera fixed to the vehicle for photographing the target line drawn on the road surface, and (5) fixed to the paint discharging device so as to be positioned on the vehicle rear side of the front guide. A rear guide for indicating the predicted position in the line width direction of the road surface paint to be applied onto the road surface by the paint discharge device immediately before the application position by the paint discharge device; (6) the rear guide and the target A rear camera fixed to the vehicle for photographing a line, and (7) a pair of images respectively photographed by the front camera and the rear camera are simultaneously displayed, and the pair of images are displayed from the driver's seat. And an image display device installed at a visible position.

  The gist of the invention according to claim 2 is that, in the invention according to claim 1, (1) the image display device displays a front image photographed by the front camera and displays the front image. A front image display area for displaying a front prediction line set to match the prediction position pointed to by the front guide in the front image on the front image, and a rear image taken by the rear camera, A rear image display area for displaying a rear prediction line set on the rear image so as to coincide with the predicted position indicated by the rear guide in the displayed rear image, and (2) each image Each image in each image display area is set so that the predicted position indicated by each of the front guide and the rear guide displayed in the display area matches the front predicted line and the rear predicted line. In providing the expected line setting means or to set the position of each prediction lines respectively

  The gist of the invention according to claim 3 is that, in the invention according to claim 1 or 2, (1) the line length of the road surface paint applied in a solid line or a broken line by the paint discharge device is set. A line length detecting means for detecting and storing based on the travel distance within the application time by the paint discharging device, and (2) counting the number of road paint lines to be applied in a broken line by the paint discharging device. And (3) construction result data generating and storing means for generating and storing construction result data including the line length and the number of lines.

  According to the road surface paint application apparatus of the first aspect of the invention, the predicted position in the line width direction of the road surface paint applied on the road surface by the paint discharge device when the vehicle goes straight ahead of the application position by the paint discharge device. A front guide and a rear guide for instructing the road surface immediately before the application position, and a front guide, a rear guide, and a target line drawn in advance on the road surface. A front camera and a rear camera, and a pair of images respectively captured by the front camera and the rear camera, and an image display device installed at a position where the pair of images can be seen from the driver's seat Therefore, a paint discharge device is provided on the side of the vehicle opposite to the driver's seat side. In addition, since the positional relationship between the front guide and the rear guide and the target line can be confirmed by the image display device, the front guide and the rear guide are provided from the driver seat on the side opposite to the side where the paint discharging device is provided in the width direction of the vehicle. It can be confirmed whether or not the predicted positions to be pointed coincide with the target lines.

  According to the road surface paint coating apparatus of the invention according to claim 2, the image display device displays a front image taken by the front camera, and the front guide in the displayed front image is displayed. A forward image display area for displaying a forward prediction line set to coincide with the predicted position to be indicated on the forward image, and a backward image taken by the backward camera, and in the displayed backward image A rear image display area for displaying a rear prediction line set on the rear image so as to coincide with the predicted position indicated by the rear guide, and the front guide and the rear displayed in each image display area The position of each image or each prediction line in each image display area is set so that the predicted position pointed to by the guide matches the forward prediction line and the backward prediction line. Since the prediction line setting means for setting is provided, the front guide line and the rear prediction line displayed in each image display area of the image display device make clear the predicted positions pointed to by the front guide and the rear guide, respectively. It is further easier to check whether the predicted positions pointed to by the rear guide and the target line respectively match.

  According to the road surface paint coating apparatus of the invention according to claim 3, the line length of the road surface paint applied by the paint discharging device in a solid line shape or a broken line shape is determined within the coating time by the paint discharging device. Line length detecting means for detecting and storing based on the travel distance, broken line number counting means for counting and storing the number of road surface paint lines applied in a broken line by the paint discharging device, and the line length Because it includes construction result data generation and storage means for generating and storing construction result data including the number of lines and the number of lines, for example, the stored construction result data can be output by a printer or edited by a personal computer. There is an advantage that management of construction results becomes easy. In particular, there is an advantage that when a road surface construction contractor should submit a document summarizing construction results after construction of the road surface line to, for example, a client of the construction work, the document creation becomes easy.

1 is a side view of a vehicle equipped with a road surface paint coating apparatus according to an embodiment of the present invention. It is a top view of the vehicle of FIG. It is a figure which expands and shows the spray apparatus shown in FIG. It is a figure which shows the front vicinity of the vehicle which expands and shows the IV arrow part of FIG. It is a figure which shows the left side vicinity vicinity of the vehicle which expands and shows the V arrow part of FIG. It is a figure which shows the screen of the monitor of the personal computer shown in FIG. 1, Comprising: The state in which the front prediction line and the back prediction line correspond to the prediction position, respectively is shown. It is a figure which shows the screen of the monitor of the personal computer shown in FIG. 1, Comprising: The state where the front prediction line and the back prediction line do not correspond to a prediction position, respectively is shown. It is a figure explaining the principal part of the electronic controller provided in the paint coating apparatus for road surfaces of FIG. It is a figure which shows the construction result data arranged on the predetermined format and printed on paper etc., for example with a printer. It is a figure which shows the screen of the monitor of the personal computer with which the paint application apparatus for road surfaces of the other Example of this invention was equipped.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In the following embodiments, the drawings are appropriately simplified or modified, and the dimensional ratios, shapes, and the like of the respective parts are not necessarily drawn accurately.

  FIG. 1 is a side view of a vehicle 12 on which a road surface paint coating apparatus 10 according to an embodiment of the present invention is mounted, and FIG. 2 is a top view of the vehicle 12 of FIG. 1 and 2, a vehicle 12 is a so-called truck that includes a prime mover (not shown) and a loading platform 14 and can travel on the road surface 6. In this embodiment, the vehicle 12 is provided with a driver's seat on the right side in the width direction of the vehicle 12, for example, a steering handle 8 or an accelerator pedal (not shown) that is depressed according to the required driving force. Right-hand drive vehicle. The road surface paint application device 10 is for applying the road surface paint in a line shape on the road surface 6 as the vehicle 12 travels. In this embodiment, the road surface paint application device 10 mainly uses a lane line for dividing the lane. Used when the road surface line 4 is drawn on the road surface 6. The road surface paint is a paint obtained by mixing a pigment with a color developing agent (medium for dispersing and developing the pigment), and includes, for example, an oil paint and an aqueous paint.

  On the loading platform 14 of the vehicle 12, a well-known so-called air compressor 16, a paint tank 17 that stores road surface paint, and beads that are small spherical glasses for reflecting light toward the incident direction are stored. A bead tank 18 for heating, a paint heater 19 for heating the paint for road surface, and a primary paint for pressure-feeding the road surface paint stored in the paint tank 17 to a first paint pipe (not shown) provided with the paint heater 19 A pump 20, a secondary pump 22 that pumps road surface paint in the first paint pipe to a second paint pipe (not shown) in which a paint spray gun 100 described later is provided, and a control panel 24 are provided. In the control panel 24, a main control device 26 (see FIG. 8) of the road surface paint coating device 10 is accommodated.

  The paint heater 19 includes a heat exchanger that performs heat exchange between the cooling water and the road surface paint using the cooling water of the air compressor 18 having a relatively high temperature as a heat source. The flow rate of the cooling water of the air compressor 18 supplied to the paint heater 19 is adjusted by a flow rate adjusting valve 28 (see FIG. 8) driven by a main control device 26 that functions as an electronic control device. The road surface paint used in the present embodiment is a heating type used by being heated to, for example, 60 to 70 ° C. When a room temperature type road surface paint used at normal temperature is used, the flow rate adjusting valve 28 blocks the supply of cooling water to the paint heater 19 so that the road surface paint is not heated. Yes.

  Moreover, the primary pump 20 and the secondary pump 22 of the present embodiment are configured by, for example, a cylinder-type constant displacement pump that operates using compressed air of the air compressor 18 as driving energy. Since such a cylinder-type constant displacement pump has a relatively large pressure fluctuation in the pipe and easily generates pulsation, the first paint pipe is used to reduce the pressure fluctuation and suppress the occurrence of pulsation. Is provided with a small surge tank (not shown), and two large surge tanks 30 are provided in the second paint pipe. These surge tanks are high-pressure containers that store road surface paint in a pressurized state, and function as accumulators.

  The road surface paint pressure-fed by the primary pump 20 into the first paint pipe and into the small surge tank is pressure-fed into the second paint pipe and the surge tank 30 by the secondary pump 22. Then, surplus road surface paint that is not discharged to the road surface 6 by the paint spray gun 100 in the second paint pipe is returned to the paint tank 17 through a back pressure valve (not shown). As described above, the road surface paint is heated by the paint heater 19 while being circulated through the paint tank 17, the first paint pipe, and the second paint pipe, and is discharged to the road surface 6 by the paint spray gun 100. ing.

  Under the loading platform 14 of the vehicle 12, an air brush 32 for blowing off foreign matter on the road surface 6 using compressed air prior to application of the road surface paint onto the road surface 6, and the road surface paint toward the road surface 6. A spray device (paint discharge device) 34 that discharges in this manner, a distance maintaining device 35 that keeps the distance (distance) between the paint spray gun 100 provided in the spray device 34 and the road surface 6 substantially constant, and the travel distance of the vehicle 12. A travel distance detection device 36 for detection is provided. The spray device 34 is provided symmetrically with respect to the center line in the width direction of the vehicle on the driver seat side and the left side on the opposite side in the width direction of the vehicle 12. The spray device 34 on the driver's seat side is omitted. The spray device 34 is provided between the front wheel and the rear wheel of the vehicle 12 in the traveling direction of the vehicle 12.

  As shown in FIG. 1, the travel distance detection device 36 is provided with three wheels, one on the front and two on the rear in parallel, and supported by a wheel support member 37 so as to be rotatable around each axis. 38, a plurality of link members 39 that connect the wheel support member 37 to the vehicle body of the vehicle 12 so as to be movable up and down, and the wheel support member 37 is moved up and down in accordance with the supplied compressed air so that the wheel 38 is moved to the road surface 6. An upper and lower cylinder 97 that switches between a grounding state and a state away from the road surface 6, and a travel distance detection rotary that is provided in a housing (not shown) fixed to the wheel support member 37 and connected to the axle of the front wheel 38, for example. An encoder 98 (see FIG. 8). The upper and lower cylinders 97 operate using compressed air generated by the air compressor 16 as drive energy, and are operated by a travel distance detection device vertical movement control valve 95 (see FIG. 8) driven by the main control device 26. It is supposed to be. The travel distance detection device 36 supplies a pulse signal output from the rotary encoder 98 to the main control device 26. The travel distance detection device 36 calculates a broken line distance for calculating a broken line length of the road surface paint applied in a broken line shape by the spray device 34 (a length of a solid line portion of the broken road surface line 4). It also functions as a measurement unit of the device. The broken line distance calculation device includes a travel distance detection device 36 as a measurement unit and a broken line distance calculation unit 161 described later as a calculation unit.

  FIG. 3 is an enlarged view of the spray device 34 shown in FIG. In FIG. 3, the spray device 34 includes a storage position where the spray device 34 is stored below the loading platform 14 of the vehicle 12 and an application work position outside the vehicle for applying road surface paint as shown in FIG. 2. As shown in FIG. 3, the carriage left / right moving device 68 that moves left and right in the width direction of the vehicle 12 and the spray device 34 located at the application work position as shown in FIG. ) And a lift position where the road surface paint is not released is fixed to a gun carriage 72 having a carriage vertical movement device 70 that moves up and down.

  The carriage left / right moving device 68 includes, for example, a left / right moving member 76 including a pair of side plates 74 arranged in parallel in the front-rear (longitudinal) direction of the vehicle 12 and connected to each other. An output rod tip is fixed to the side plate 74, and a hydraulic cylinder device 78 that moves the left and right moving member 76 in the width direction of the vehicle 12 according to the supplied hydraulic pressure is provided. The hydraulic cylinder device 78 is directed toward the application work position in which the left / right moving member 76 and the spray device 34 are protruded laterally from the vehicle by a carriage left / right movement control valve 79 (see FIG. 8) driven by the main control device 26. The hydraulic pressure supply state to be moved and the hydraulic pressure supply state to be moved toward the storage position on the vehicle center side are switched. In addition, the hydraulic cylinder device 78 of the present embodiment can perform an inching operation that moves the left and right moving member 76 and the spray device 34 to the left and right by a small size.

  The carriage vertical movement device 70 includes, for example, a horizontal vertical movement member 80 having a longitudinal direction in a direction substantially orthogonal to the width direction of the vehicle 12 (the front-rear direction of the vehicle 12), and the vertical movement member 80 as a left-right movement member 76. A plurality of pairs of link members 82 connected in a vertically movable manner, a cylinder portion 84 whose base end portion is provided on the left and right moving member 76 so as to be rotatable around a single axis O1, and an upper portion of the vertically moving member 80 And an upper and lower cylinder 88 that moves the vertical movement member 80 up and down in accordance with the supplied compressed air. The upper and lower cylinders 88 operate using compressed air generated by the air compressor 16 as drive energy, and are moved up and down by a carriage vertical movement control valve 89 (see FIG. 8) driven by the main control device 26. In addition, a compressed air supply state in which the spray device 34 is moved toward the paint application position and a compressed air supply state in which the spray device 34 is moved toward the lift position are switched. Further, the upper and lower cylinders 88 of this embodiment are controlled by the main control device 26 so as to automatically rise to the raised position when the vehicle 12 moves backward.

  A sprayer 34 positioned at the paint discharge position and a caster 90 for supporting the vertical movement member 80 are fixed to the lower part of the vertical movement member 80. The caster 90 includes a wheel bracket 92 provided on the vertically moving member 80 so as to be rotatable around a vertical axis, an axle 94 supported by the wheel bracket 92 so as to be rotatable around a single axis O2, and the axle 94 And a wheel 96 fixed to the axle 94 so as to be rotatable integrally therewith. The axle 94 and the wheel 96 constitute a part of the distance maintaining device 35 for keeping the distance (distance) between the paint spray gun 100 provided in the spray device 34 and the road surface 6 substantially constant.

  The spray device 34 includes an air-type paint spray gun 100 that discharges the road surface paint supplied from the paint tank 17 to the second paint pipe toward the road surface 6 as indicated by an arrow a in FIG. 3, and the bead tank. As shown by an arrow b in FIG. 3, an air-type bead gun 101 for spraying the beads supplied from 18 onto the road surface paint immediately after being applied to the road surface 6 by the paint spray gun 100, and the paint spray gun 100 and the bead gun And a gun vertical position adjusting device 102 for adjusting the vertical position of 101.

  In the paint spray gun 100, a spray gun control valve 103 (see FIG. 8) driven by the main control device 26 is switched between a discharge state in which the road surface paint is discharged and a blocking state in which the discharge is stopped. It has become. In the discharge state, a large number of finely divided road surface paints are ejected toward the road surface 6 through the discharge port of the paint spray gun 100. The line width of the road surface line 4 applied on the road surface 6 by the paint spray gun 100 increases as the discharge port of the paint spray gun 100 moves away from the road surface 6. The line width of the road surface line 4 is adjusted to, for example, about 150 to 300 mm by adjusting the vertical position of the paint spray gun 100.

  The bead gun 101 is switched between a release state in which the beads are released and a blocking state in which the release is stopped by a bead gun control valve 105 (see FIG. 8). Through this, beads are discharged toward the road surface 6.

  The gun vertical position adjusting device 102 has a cylinder portion fixed to a side portion of the vertical movement member 80 of the carriage vertical movement device 70, and moves the vertical movement member 107 connected to the tip end portion of the output rod in accordance with the supplied hydraulic pressure. A hydraulic cylinder device 108 is provided. The hydraulic cylinder device 108 has a hydraulic pressure supply state in which the vertical movement member 107, the paint spray gun 100, and the bead gun 101 are moved downward by a gun vertical position control valve 109 (see FIG. 8) driven by the main control device 26. The hydraulic pressure supply state to be moved upward is switched. The hydraulic cylinder device 108 according to the present embodiment can perform an inching operation that moves the paint spray gun 100 and the bead gun 101 up and down by a small size. The paint spray gun 100 is fixed to the vertically moving member 107 via a vertical position fine adjustment device 112 for mechanically finely adjusting the vertical position of the paint spray gun 100 by turning a handle 110. , The front / rear position fine adjustment device 116 for finely adjusting the front / rear position of the bead gun 101 by turning the handle 114, and the upper / lower position for finely adjusting the vertical position of the bead gun 101 mechanically by turning the handle 117. It is being fixed to the up-and-down moving member 107 through the position fine adjustment device 118, respectively. The paint spray gun 100 and the bead gun 101 are adjusted in vertical and front / rear positions by a vertical position fine adjustment device 112, a front / rear position fine adjustment device 116, and a vertical position fine adjustment device 118 before application of road surface paint onto the road surface 6. The vertical position of the gun is adjusted by the gun vertical position adjusting device 102 during application of the road surface paint onto the road surface 6.

  1 and 2, near the front bumper of the vehicle 12, a base end portion is provided on the vehicle body of the vehicle 12 so as to be rotatable about a single axis O3 that is parallel to the road surface 6 and perpendicular to the straight traveling direction of the vehicle 12. The long and narrow bowl-shaped first front guide support members 40 are provided on both sides of the vehicle 12 in the width direction. On the distal end side of the first front guide support member 40, a base of a second front guide support member 41 formed so as to be expandable / contractable in two stages between the distal end portion and the proximal end portion and to be fixed at a desired expansion / contraction position. The end is fixed. As shown on the left side in the width direction of the vehicle 12 in FIGS. 1 and 2, the first front guide support member 40 and the second front guide support member 41 are provided on the road surface 6 at the front end portion of the second front guide support member 41. A caster 42 fixed to the road surface 6 so that the outer peripheral portion of the wheel comes into contact with the ground is provided. Further, a tip portion of a wire 46 wound around a winch (winding machine) 44 provided on the roof of the vehicle 12 is fixed near the middle portion of the second front guide support member 41. When the wire 46 is wound, the front guide support member 40 is wound and stored so as to change from the state shown on the left side in the width direction of the vehicle 12 to the state shown on the right side in FIGS. 1 and 2. Yes.

  Further, a front guide 48 is provided at the tip of the second front guide support member 41 so as to be positioned on the vehicle front side of the spray device 34. The front guide 48 indicates the predicted position B in the line width direction of the road surface paint applied on the road surface 6 by the spray device 34 when the vehicle 12 goes straight on the road surface 6 ahead of the application position A by the spray device 34. Is for. When the front guide support member 40 is in the state shown on the left side in the width direction of the vehicle 12 in FIGS. 1 and 2, the front guide 48 of the present embodiment has an intermediate portion near the front end portion of the front guide support member 40. A rod-shaped support pole portion 50 that is fixed and parallel to the road surface 6, and an intermediate portion is fixed to one end portion of the support pole portion 50 outside the vehicle, protrudes toward the road surface 6, and the tip end portions are trifurcated at equal intervals. It comprises a guide pole portion 52 provided with three rod-like guide poles 52a, 52b and 52c perpendicular to the branched road surface 6. The predicted position B is a position pointed by the guide pole 52b located at the center of the tip of the trifurcated guide pole 52. The front guide support members and the front guides 48 provided on both sides in the width direction of the vehicle 12 have the same structure except that they have a symmetrical shape.

  FIG. 4 is a diagram showing the vicinity of the front of the vehicle 12 showing the enlarged view of the IV arrow in FIG. 1, 2, and 4, the vehicle 12 has a front camera 56 for photographing a front guide 48 and a target line 54 (see FIG. 6) that is a marking line previously drawn on the road surface 6. It is installed. In the present embodiment, the front camera 56 is fixed to the mounting arm of the door mirror 58 in a detachable state via the camera fixing arm 59.

  FIG. 5 is a diagram showing the vicinity of the left side portion of the vehicle 12 showing the enlarged view of the V arrow portion of FIG. 1. 1 to 3 and 5, the gun carriage 72 to which the spray device 34 is fixed is positioned on the vehicle rear side of the front guide 48 and on the vehicle front side of the paint spray gun 100. A rear guide 60 fixed to the left side of the gun carriage 72 is provided. The rear guide 60 indicates the predicted position C in the line width direction of the road surface paint applied on the road surface 6 by the spray device 34 when the vehicle 12 goes straight ahead, immediately before the application position A by the spray device 34, that is, immediately ahead. Is for. The rear guide 60 of the present embodiment has a rod-like support pole portion 62 whose base end is fixed to the left side portion of the spray device 34 and parallel to the road surface 6, and an intermediate portion near one end portion of the support pole portion 62 outside the vehicle. Are fixed, projecting toward the road surface 6 and having three rod-shaped guide poles 64a, 64b, and 64c perpendicular to the road surface 6 that are branched at equal intervals in a trifurcated manner. ing. The predicted position C is a position pointed by the guide pole 64b located at the center of the tip of the trifurcated guide pole 64.

  The vehicle 12 is fixedly provided with a rear camera 66 for photographing the rear guide 60 and the target line 54 previously drawn on the road surface 6. In the present embodiment, the rear camera 66 is fixed to the lower surface of the loading platform 14 in a detachable state via a camera fixing arm 67.

  1 and 2, a pair of images Img1 and Img2 photographed by the front camera 48 and the rear camera 60, respectively, are simultaneously displayed in the passenger compartment of the vehicle 12, and the pair of images Img1 and Img2 are displayed in the vehicle. A personal computer 120 installed at a position visible from the driver's seat in the room is provided. The personal computer 120 includes a monitor 122 that displays a pair of images Img 1 and Img 2, and a monitor control device 124 that controls screen display of the monitor 122. The personal computer 120 corresponds to the image display device in the present invention.

  FIG. 6 is a diagram showing a screen of the monitor 122. In FIG. 6, the monitor 122 displays the front image Img1 taken by the front camera 48, and coincides with the predicted position B indicated by the guide pole portion 52 of the front guide 48 in the displayed front image Img1 and is the target. A front image display area A1 for displaying a front prediction line L1 indicated by a dotted line in the figure set to be parallel to the line 54 on the front image Img1, and a rear image Img2 taken by the rear camera 60 are displayed. , A rear prediction line L2 indicated by a dotted line in the figure, which is set to coincide with the prediction position C pointed to by the guide pole portion 64 of the rear guide 60 in the displayed rear image Img2 and to be parallel to the target line 54, A rear image display area A2 to be displayed on the rear image Img2. In the present embodiment, the front image display area A1 is arranged on the right side of the two-divided screen of the monitor 122, and the rear image display area A2 is arranged on the left side of the two-divided screen of the monitor 122.

  The screen of the monitor 122 employs a touch panel system that functions as an input device for operating the monitor control device 124 by pressing a predetermined area of the screen with a finger or a pen. Each time the front prediction line L1 in the front image display area A1 is moved a predetermined distance in a predetermined direction or is rotated by a predetermined angle in a predetermined rotation direction, the buttons cf for each time it is pressed, Buttons g to j are arranged for moving the rear prediction line L <b> 2 by a predetermined distance in a predetermined direction or rotating a predetermined angle in a predetermined rotation direction. The button d is for moving the forward prediction line L1 to the right by a predetermined distance, and the button e is for moving the forward prediction line L1 to the left by a predetermined distance. The button c is for rotating the forward prediction line L1 clockwise by a predetermined angle at the intermediate point, and the button f is for rotating the forward prediction line L1 counterclockwise by a predetermined angle at the intermediate point. is there. The button h is for moving the backward prediction line L2 to the right by a predetermined distance, and the button i is for moving the backward prediction line L2 to the left by a predetermined distance. The button g is for rotating the backward prediction line L2 clockwise by a predetermined angle at the intermediate point, and the button j is for rotating the backward prediction line L2 counterclockwise by a predetermined angle at the intermediate point. is there.

  Here, FIG. 6 shows a state in which the front prediction line L1 matches the prediction position B indicated by the front guide 48 in the front image Img1 and is set in parallel with the target line 54 on the screen of the monitor 122. The states where the prediction line L2 coincides with the prediction position C indicated by the rear guide 60 in the rear image Img2 and is set in parallel with the target line 54 are shown. On the other hand, FIG. 7 shows a state where the forward prediction line L1 and the backward prediction line L2 do not coincide with the prediction position B and the prediction position C. In the state shown in FIG. 7, for example, by appropriately pressing buttons c, e, h, and j, the forward prediction line L1 and the backward prediction line L2 coincide with the prediction position B and the prediction position C, and the target line 54 Can be set to be parallel to each other.

  FIG. 8 is a diagram for explaining a main part of the electronic control unit 126 provided in the road surface paint coating apparatus 10. In FIG. 8, the electronic control device 126 of this embodiment includes a main control device 26 related to the positioning control and paint discharge control of the spray device 34, the temperature control of the road surface paint, and the like, and a monitor related to the screen display control of the monitor 122. And a control device 124. The monitor control device 124 and the main control device 26 are so-called microcomputers each having a CPU, a ROM, a RAM, an input / output interface, and the like, and the CPU is stored in the ROM in advance using the temporary storage function of the RAM. The input signal is processed according to the program. The monitor control device 124 controls the display of the monitor 122, for example, rewrites data recorded in the storage device 127, and the main control device 26 controls the spray gun control valve 103, the bead gun control valve 105, the carriage left and right, for example. Drive control of the movement control valve 79, the carriage vertical movement control valve 89, the gun vertical position control valve 109, and the flow rate adjustment valve 28 is performed.

  A driver seat display panel 128 and a driver seat relay box 130 are provided between the monitor control device 124 and the main control device 26. And between the monitor 122 and the monitor control device 124, between the monitor control device 124 and the display panel 128, between the display panel 128 and the driver seat relay box 130, and between the driver seat relay box 130 and the main control device 26, Are connected to each other via a communication cable for serial communication or parallel communication, for example.

  The monitor control device 124 is supplied with an electrical signal representing an image captured by the front camera 56 and the rear camera 66, a signal representing that the buttons c to j provided on the touch panel type monitor 122 are pressed, and the like. It has become so. The main control device 26 also includes a pulse signal output from the rotary encoder 98 for detecting the traveling distance and a broken line distance, and a signal representing the temperature of the road surface paint from the temperature sensor 132 for detecting the temperature of the road surface paint. A signal indicating that each of various buttons and switches provided on the operation device 134 has been operated is supplied.

  The operation device 134 is a place that is easily operated by an operator who performs positioning control and paint discharge control of the spray device 34, and is installed on, for example, a fence provided on the left side of the loading platform 14 of the vehicle 12. The operation device 134 includes, for example, a power switch 135 of the operation device 134 and a right / left movement selection position for moving the spray device 34 to the accommodation position side by the carriage left / right movement device 68, and the application work position side. For moving the spray device 34 to the raised position by a right / left movement selection position and a left / right movement switch 136 that can be selectively switched to any one of the above two original positions and a carriage vertical movement device 70. An ascending / descending switch 138 that is selectively switched to any one of an ascending selection position, a descending selection position for lowering to the paint discharge position (lowering position), and an original position where neither of the two is selected, and is pressed. On the gun that raises the spray device 34 by the gun vertical position adjustment device 102 only for the interval An inching button 140, a gun lowering inching button 142 that lowers the spray device 34 by the gun up / down position adjusting device 102 only while the button is pressed, and a paint spray gun 100 discharge state and a discharge stop state each time the button is pressed. A spray button 144 for switching the bead, a bead button 146 for switching the bead discharge state and the discharge stop state of the bead gun 101 each time it is pressed, and automatically switching the discharge state of the paint spray gun 100 and the bead gun 101 Automatic solid line position for constructing a solid line, automatic broken line position for constructing a broken line by automatically switching the discharge state of the paint spray gun 100 and the bead gun 101 based on the travel distance of the vehicle 12 (gun carriage 72), Vehicle 12 (gun carriage 7 ) By selectively switching the discharge state of the paint spray gun 100 and the bead gun 101 based on the travel distance of), selectively switching to one of the semi-automatic broken line positions for constructing one section (one solid line). Construction line type selection switch 148, a start button 150 for starting automatic construction of the line selected by the construction line type selection switch 148, a stop button 152 for stopping the automatic construction, and a construction line type. A mode selection switch 154 for selecting whether the selection switch 148 is operated by the operation device 134 or the driver's seat, and a lowering selection position for lowering the travel distance detection device 36 to the ground 6 by the upper and lower cylinders 97, And selectively switch to one of the rising selection positions for raising the mileage detection device 36. A travel distance detection device up / down switch 156 to be replaced is provided. Note that the lengths of the solid line portion and the empty line portion of the broken line that are constructed when the automatic broken line position and the semi-automatic broken line position are selected by the construction line type selection switch 148 are set in advance.

  In FIG. 8, the prediction line setting means 158 provided in the monitor control device 124 is such that the prediction position B pointed to by the front guide 48 in the front image Img1 displayed in the front image display area A1 matches the front prediction line L1, and The front prediction line L1 in the front image display area A1 is set so that the front prediction line L1 and the target line 54 are parallel, and the rear guide 48 in the rear image Img2 displayed in the rear image display area A2 is set. The backward prediction line L2 in the backward image display area A2 is set so that the prediction position C indicated by and the backward prediction line L2 coincide with each other and the backward prediction line L2 and the target line 54 are parallel to each other. Specifically, based on signals indicating that the buttons c to j that are actually supplied to the monitor control device 124 have been pressed, the forward prediction line L1 and the backward prediction line L2 are previously set for each of the buttons c to j. A predetermined direction and amount are moved in each image display area.

  The line length detection means 160 included in the main control device 26 determines the line length of the road surface paint applied by the spray device 34 in a solid line or broken line shape within the application time of the spray device 34 (the gun carriage 72). ) And is stored in, for example, the RAM of the main controller 26. Whether or not it is within the application time by the spray device 34 is, for example, whether or not the drive signal is output based on the drive signal to the spray gun control valve 103 indicating that the road paint is actually being released. It is judged by. The travel distance of the vehicle 12 (gun carriage 72) is detected based on the period or frequency of the pulse signal supplied from the rotary encoder 98 to the main controller 26. The line length stored in the RAM or the like of the main control unit 26, the broken line length and the number of lines, which will be described later, are supplied to the monitor control unit 124 and used in the monitor control unit 124 as necessary. .

  The broken line distance calculation means 161 included in the main control device 26 is configured to determine the broken line length of the road surface paint applied by the spray device 34 in a broken line shape (the length of the solid line portion of the broken road surface line 4). 34 is detected based on the travel distance of the vehicle 12 (gun carriage 72) within the broken line application time 34, and stored in, for example, the RAM of the main controller 26. Whether or not it is within the broken line application time by the spray device 34, for example, the automatic broken line position or the semi-automatic broken line position is selected by the construction line type selection switch 148, and the paint spray gun 100 is put into the paint discharge state by the spray gun control valve 103 This is determined based on whether or not a drive signal for output is output.

  The broken line number counting means 162 provided in the main control device 26 counts and stores the number of road surface paint lines (number of solid line portions of the broken road surface line 4) applied by the spray device 34 in a broken line shape. Specifically, the broken line number counting means 162 determines that the broken line construction state is based on the selection of the automatic broken line position or the semi-automatic broken line position in the construction line type selection switch 148, and the broken line construction state Is determined based on the drive signal to the spray gun control valve 103, the number of times the spray device 34 is switched from the discharge stop state to the discharge state is detected, and the number of lines is used as the number of lines, for example, main control. The data is stored in the RAM of the device 26 or the like.

  The construction record data generation storage unit 164 included in the monitor control device 124 generates construction record data including the line length and the number of lines detected by the line length detection unit 160 and the broken line number counting unit 162, for example. Store in the storage medium of the storage device 127. In the present embodiment, for example, as shown in FIG. 9, they are organized and stored in a predetermined format. In FIG. 9, “actual result” of “construction distance” in the table is the line length of the road surface line 4 constructed on the day indicated by “construction date” input from an input device such as the keyboard 165 in advance. It is a value based on the line length of the road surface paint detected by the line length detection means 160, and “total” of “construction distance” in the table is shown in “construction date” Cumulative value of the line length of road surface paint detected by the line length detection means 160, which is the line length of the road surface line 4 constructed within a predetermined period of time (for example, within the construction period of a predetermined road). In addition, the “number of broken lines” in the table is the number of the solid line portions of the broken road surface line 4 constructed on the day shown in “construction date”, and the number of broken line lines is counted. It is applied in the form of a broken line detected by means 162 Is a value based on the number of lines of face paint. This construction result data can be printed on paper or the like with a printer 166, for example, or taken out from the storage medium of the storage device 127 and used with, for example, the personal computer 120 or other personal computers as necessary. It is. The storage medium is, for example, a nonvolatile memory, such as an MRAM, EEPROM, EPROM, or NVRAM, in which stored contents (stored values) are stored, a magnetic disk, a magneto-optical disk, or the like.

  In the road surface paint application device 10 configured as described above, prior to the start of the application operation, the operation device 134 is operated to move the spray device 34 to the application operation position and lower it to the paint discharge position. Then, if necessary, the vertical position fine adjustment device 112, the front and rear position fine adjustment device 116, and the vertical position fine adjustment device 118 are operated to adjust the application position A and the vertical position (line width) of the spray device 34. . Furthermore, the construction line type selection switch 148 of the operating device 134 is operated to select the construction line type.

  Then, as the buttons c to j on the screen of the monitor 122 are operated, the front guide line 48 in the front image Img1 in which the front prediction line L1 is displayed in the front image display area A1 by the prediction line setting unit 158 points. The predicted position B is set to coincide with the predicted position B, and the rear predicted line L2 is set to match the predicted position C pointed to by the rear guide 48 in the rear image Img2 displayed in the rear image display area A2. Then, in a state where the predicted position B and the predicted position C coincide with a straight line provided on the road surface 6, for example, the target line 54, the buttons c to j on the screen of the monitor 122 are operated, and the predicted line setting unit 158 operates the monitor 122. The forward prediction line L1 and the backward prediction line L2 in each of the image display areas are set to be parallel to the target line 54, respectively.

  When the operation device 134 is operated and the start button 154 is pressed, for example, when the application of the road surface paint is started, the road surface paint starts to be released from the paint spray gun 100 of the spray device 34 and the beads are released from the bead gun 101. Begin to be. At this time, the vehicle 12 is driven while the screen display of the monitor 122 is confirmed. Specifically, when the road surface paint is applied in a straight line, the predicted position B indicated by the front guide 48 in the front image Img1 displayed in the front image display area A1 matches the target line 54, and Driving is performed such that the predicted position C pointed to by the rear guide 60 in the rear image Img2 displayed in the rear image display area A2 matches the target line 54. Further, when the road surface paint is applied in a curved shape, the state where the predicted position C pointed to by the rear guide 60 in the rear image Img2 displayed in the rear image display area A2 matches the target line 54 is maintained. To be driven.

  Then, the vehicle detected based on the pulse signal supplied from the rotary encoder 98 within the application time by the spray device 34 determined by the line length detection means 160 based on the drive signal to the spray gun control valve 103. Based on the 12 travel distances, the line length (solid line length) of the road surface paint applied by the spray device 34 in the form of a solid line or a broken line is detected and stored, for example, in the RAM or the like of the main controller 26.

  Also, the broken line number counting means 162 detects that the broken line construction state is selected based on the selection of the automatic broken line position or the semi-automatic broken line position in the construction line type selection switch 148 of the operation device 134, and the spray gun control. Based on the drive signal to the valve 103, the number of times the spray device 34 is switched from the discharge stop state to the discharge state within the time when the broken line construction state is detected is detected. The number of road surface paint lines to be applied is stored in, for example, the RAM of the main controller 26.

  Further, the line length and line detected by the line length detection means 160 and the broken line number counting means 162, for example, every very short cycle time of about several milliseconds to several tens of milliseconds, for example, by the construction result data generation storage means 164. Construction result data including the number is generated and stored in the storage medium of the storage device 127. This construction result data is output by the printer 166 or the like as necessary, and is used for management of construction results.

  As described above, according to the road surface paint application apparatus 10 of the present embodiment, the prediction of the line width direction of the road surface paint applied on the road surface 6 by the paint spray gun (paint discharge apparatus) 100 when the vehicle 12 travels straight. The front guide 48 and the rear guide 60 for indicating the positions B and C in front of the application position A by the paint spray gun 100 and immediately before the application position, the front guide 48 and the rear guide 60, and the road surface in advance. 6, a front camera 56 and a rear camera 66 fixed to the vehicle 12 in order to photograph each of the target lines 54 drawn on the vehicle 6, and a pair of images Img <b> 1 photographed by the front camera 56 and the rear camera 66, respectively. , Img2 are displayed simultaneously, and the pair of images Img1, Img2 are operated. Since the personal computer 120 (image display device) installed at a position visible from the seat is provided, the paint spray gun 100 is provided on the side of the vehicle 12 opposite to the driver seat side (right side) (left side). Even if it exists, since the positional relationship between the front guide 48 and the rear guide 60 and the target line 54 can be confirmed by the personal computer 120, the side opposite to the side (left side) where the paint spray gun 100 is provided in the width direction of the vehicle 12 (right side). ), It can be confirmed whether the predicted positions B and C pointed to by the front guide 48 and the rear guide 60 respectively coincide with the target line 54.

  Further, according to the road surface paint coating apparatus 10 of the present embodiment, the monitor 122 of the personal computer 120 displays the front image Img1 photographed by the front camera 48, while the front guide 48 in the displayed front image Img1. The front predicted line L1 indicated by the dotted line in the figure, which is set so as to coincide with the predicted position B pointed to by and parallel to the target line 54, is displayed by the front image display area A1 displayed on the front image Img1 and the rear camera 60. While the photographed rear image Img2 is displayed, the rear indicated by the dotted line in the figure which is set to coincide with the predicted position C pointed to by the rear guide 60 in the displayed rear image Img2 and to be parallel to the target line 54 A rear image display area A2 for displaying the prediction line L2 on the rear image Img2, and the front guide 48 and the rear displayed in each image display area The prediction positions B and C pointed to by the id 60 respectively match the forward prediction line L1 and the backward prediction line L2, and the forward prediction line L1, the backward prediction line L2, and the target line 54 are parallel to each other. Since the prediction line setting means 158 for setting the position of each prediction line in each image display area is provided, the forward prediction line L1 and the backward prediction line L2 displayed in each image display area of the monitor 122 of the personal computer 120 are provided. Thus, the predicted positions B and C pointed to by the front guide 48 and the rear guide 60 are clarified, so whether or not the predicted positions B and C pointed to by the front guide 48 and the rear guide 60 respectively coincide with the target line 54. Confirmation becomes easier.

  Further, according to the road surface paint coating apparatus 10 of the present embodiment, the paint spray gun 100 determines the line length of the road surface paint (the length of the solid line portion) applied by the paint spray gun 100 in the form of a solid line or a broken line. The line length detecting means 160 that detects and stores the distance based on the travel distance within the application time by the line, and the broken line number count that counts and stores the number of road paint lines applied in a broken line shape by the paint spray gun 100 Since it includes means 162 and construction result data generation storage means 164 for generating and storing construction result data including the line length and the number of lines, for example, the stored construction result data is output by the printer 166. Or you can edit on PC 120 or other PCs, so you can manage construction results There is an advantage that it becomes easy. In particular, there is an advantage that, when the road surface construction contractor should submit a document summarizing the construction results after the construction of the road surface line 4 to, for example, a client of the construction work, the document creation becomes easy.

  Next, another embodiment of the present invention will be described. In the following description of the embodiments, portions that are the same as those of the above-described embodiments are denoted by the same reference numerals and description thereof is omitted.

  FIG. 10 is a diagram showing a screen of the monitor 122 of the personal computer 120 provided in the road surface paint coating apparatus 10 of another embodiment of the present invention. In FIG. 10, the prediction line setting means 158 provided in the monitor control device 124 of the personal computer 120 according to the present embodiment includes the prediction position B indicated by the front guide 48 in the front image Img1 displayed in the front image display area A1 and its front image. The forward image Img1 in the forward image display area A1 so that the forward prediction line L1 displayed in the center of the display area A1 matches and the target line 54 in the forward image Img1 and the forward prediction line L1 are parallel. The predicted position C indicated by the rear guide 60 in the rear image Img2 displayed in the rear image display area A2 and the rear prediction line L2 displayed in the center of the rear image display area A2 are identical. In addition, the arrangement of the rear image Img2 in the rear image display area A2 is set so that the target line 54 in the rear image Img2 and the rear prediction line L2 are parallel to each other. Specifically, at the bottom of the screen of the monitor 122 of this embodiment, each time the button is pressed, the front image Img1 in the front image display area A1 is moved by a predetermined distance in a predetermined direction or rotated by a predetermined angle in a predetermined rotation direction. Buttons c to f, and buttons ej for moving the rear image Img2 in the rear image display area A2 by a predetermined distance in the predetermined direction or rotating the predetermined image in the predetermined rotation direction each time the button is pressed. The prediction line setting means 158 selects the front image Img1 and the rear image Img2 for each of the buttons c to j based on the signals indicating that the buttons c to j supplied to the monitor control device 124 are pressed. It is moved within each image display area by a predetermined direction and amount.

  The configuration other than the above is the same as that of the first embodiment, and the paint spray gun 100 is provided on the side opposite to the driver seat side (right side) (left side) of the vehicle 12 as in the first embodiment. Even in such a case, since the positional relationship between the front guide 48 and the rear guide 60 and the target line 54 can be confirmed by the personal computer 120, the same effect as in the first embodiment can be obtained. In addition, the predicted positions B and C pointed to by the front guide 48 and the rear guide 60 are clarified by the forward prediction line L1 and the backward prediction line L2 displayed in each image display area of the monitor 122 of the personal computer 120, respectively. Therefore, it is easier to confirm whether or not the predicted positions B and C pointed to by the front guide 48 and the rear guide 60 respectively match the target line 54 in this embodiment.

  As mentioned above, although one Example of this invention was described in detail with reference to drawings, this invention is not limited to this Example, It can implement in another aspect.

  For example, in the above-described embodiment, the target line 54 is drawn on the road surface 6 in advance, and the vehicle is driven so that the predicted positions B and C indicated by the front guide 48 and the rear guide 60 are along the target line 54, respectively. However, the present invention is not limited to this. For example, a part of the old road surface line that was previously constructed, for example, the center position, one end position, or the other end position in the width direction of the old road line is the target line. It may be used as a target line instead of 54.

  In the above-described embodiment, the spray device 34 is provided between the front wheel and the rear wheel of the vehicle 12 in the traveling direction of the vehicle 12, but is not limited to this, for example, the front or rear of the front wheel of the vehicle 12. It may be provided behind the wheel.

  Further, in the above-described embodiment, the prediction line setting unit 158 includes the prediction positions B and C indicated by the front guide 48 and the rear guide 60 displayed in each image display area, and the front prediction line L1 and the rear prediction line L2, respectively. The position of each prediction line or each image in each image display area is set so that they match each other and the forward prediction line L1 and the backward prediction line L2 and the target line 54 are parallel to each other. However, the present invention is not limited to this, for example, so that the predicted positions B and C indicated by the front guide 48 and the rear guide 60 displayed in each image display area respectively coincide with the front predicted line L1 and the rear predicted line L2. The position of each prediction line or each image in each image display area may be set.

  In the above-described embodiment, each prediction line is displayed on the monitor 122 in a straight line. However, the prediction line is not limited to this, and may be displayed in a dot or other mark. In short, it is only necessary that the predicted positions B and C indicated by the front guide 48 and the rear guide 60 displayed in each image display area of the monitor 122 are clear.

  Moreover, in the said Example, although the spray apparatus 34 was comprised including the spray-type paint spray gun 100 which sprays a liquid in the form of a mist or it, it is not restricted to this, Other forms, for example, It may be configured to include a paint discharge device that is a coating type or the like and discharges the road surface paint toward the road surface 6.

  In the above-described embodiment, the guide pole portion 52 (64) includes the three guide poles 52a, 52b, and 52c (64a, 64b, and 64c) with the tip portion branched into three. May be composed of a single guide pole. In short, the predicted positions B and C in the line width direction of the road surface paint to be applied onto the road surface 6 by the spray device 34 when the vehicle 12 travels are the road surface 6 ahead of the application position A by the spray device 34 and immediately before the application position. It suffices if each can be instructed.

  Further, in the above-described embodiment, the first pump 20 and the second pump 22 are cylinder type constant displacement types, but are not limited thereto, and may be configured by other types of well-known pumps. Good.

  Moreover, in the said Example, although the paint heater 19 was comprised including the heat exchanger, it is not restricted to this, You may be comprised including another well-known heater.

  It should be noted that the above description is merely an embodiment, and other examples are not illustrated. However, the present invention is implemented in variously modified and improved modes based on the knowledge of those skilled in the art without departing from the gist of the present invention. Can do.

6: Road surface 8: Handle 10: Paint application device for road surface 12: Vehicle 34: Spray device (paint discharge device)
48: Front guide 54: Target line 56: Front camera 60: Rear guide 66: Rear camera 120: Personal computer (image display device)
158: Predicted line setting means 160: Line length detecting means 162: Dashed line number counting means 164: Construction result data generating and storing means A1: Front image display area A2: Rear image display area A: Application position B, C: Predicted position Img1: Front image Img2: Back image L1: Front prediction line L2: Back prediction line

Claims (3)

A road surface provided on a side portion of a vehicle traveling on the road surface and provided with a paint discharging device for discharging road surface paint toward the road surface, and applying the road surface paint in a line on the road surface as the vehicle travels Paint applicator for
The paint discharge device is provided on the side of the vehicle opposite to the driver seat side in the width direction of the vehicle,
The predicted position in the line width direction of the road surface paint that is fixed to the vehicle so as to be positioned on the vehicle front side of the paint discharge device and is applied on the road surface by the paint discharge device when the vehicle is traveling straight ahead A front guide for instructing on the road surface ahead of the application position by the discharge device;
A front camera fixed to the vehicle for photographing the front guide and a target line previously drawn on the road surface;
The paint discharge device applies the predicted position in the line width direction of the road surface paint that is fixed to the paint discharge device so as to be positioned on the vehicle rear side of the front guide and is applied on the road surface by the paint discharge device. A rear guide for indicating just before the position;
A rear camera fixed to the vehicle for photographing the rear guide and the target line;
A road surface paint comprising: an image display device that simultaneously displays a pair of images respectively captured by the front camera and the rear camera, and the pair of images is installed at a position where the pair of images can be seen from the driver's seat. Coating device. The image display device displays a front image taken by the front camera, and displays a front prediction line set to coincide with a prediction position indicated by the front guide in the displayed front image. A front image display area to be displayed above and a rear image taken by the rear camera, and a rear prediction line set to coincide with a prediction position indicated by the rear guide in the displayed rear image And a rear image display area for displaying on the rear image,
The position of each image or each prediction line in each image display area so that the predicted position indicated by each of the front guide and the rear guide displayed in each image display area matches the front prediction line and the rear prediction line, respectively. The road surface paint coating apparatus according to claim 1, further comprising prediction line setting means for setting each of the two. Line length detection means for detecting and storing the line length of the road surface paint applied in a solid line or a broken line by the paint discharge device based on the travel distance within the application time by the paint discharge device;
A broken line number counting means for counting and storing the number of lines of road surface paint applied in a broken line by the paint discharge device;
The road surface paint coating apparatus according to claim 1, further comprising: construction result data generating and storing means for generating and storing construction result data including the line length and the number of lines.

Images