JP5839401B2 - Driver assistance device for paving machines - Google Patents

Description

  The present invention relates to a pavement machine driver support device, and in particular, a monitoring camera is installed on the pavement machine, and the inside of the composite hopper, which is a blind spot of a worker who is working on the screed side, is arranged on the screed side. The present invention relates to a pavement machine driver support device that enables a worker who is working to monitor using a monitoring camera and a monitor.

  Conventionally, in a paving machine such as an asphalt finisher, the operation speed of a conveyor that conveys the composite material in the composite hopper disposed on the front side of the paving machine body to the rear side of the paving machine body, and is sent by the conveyor. The operator operating the screw spreader on the screed side, that is, the operator on the screed side, temporarily spreads the mixed material on the construction base surface behind the paver body. Regardless of the situation in the mix hopper, switch to the high speed mode to drive at a speed faster than the normal mode speed, and adjust the supply amount of the mix regardless of the adjustment position by the speed setting dial provided on the main panel What makes it possible is known. The main panel is provided in the driver's seat of the paving machine main body, and the changeover switch operated on the screed side is provided in a screed box attached on the screed.

  In such a paving machine, when the switches on the main panel are operated at the driver's seat of the paving machine, the operator can visually check the situation inside the composite hopper, but the screed box is used on the screed side. Thus, when working, the operator cannot visually check the situation in the composite hopper. Also, even when the switches on the main panel are operated at the driver's seat of the paving machine, a part of the mixture hopper becomes a blind spot of the operator and the inside of the mixture hopper cannot be fully observed. Not a few.

  Therefore, conventionally, in a paving machine such as an asphalt finisher, a surveillance camera is installed in the main body of the paving machine, and the inside of the composite hopper, which is a blind spot of an operator operating in the driver's seat, is photographed with the surveillance camera, and the photograph was taken. 2. Description of the Related Art A driver assistance device (see, for example, Patent Document 1 and Patent Document 2) that enables video to be displayed and monitored on a monitor provided in a driver's seat is known.

  There is also known a driver assistance device in which only one monitor is installed in the center of the screed for an image of the inside of the composite hopper and the inside of the composite hopper is always displayed on the monitor.

Japanese Patent No. 4705611. JP 2009-299338 A.

  However, as described above, in the driver assistance device in which the inside of the composite hopper is constantly monitored by the monitor provided in the driver's seat, the operator who uses the screed box on the screed side to perform the driving operation. The situation inside the composite hopper cannot be known. For this reason, there is a problem that when another worker enters the conveyor portion in the composite material hopper, the worker may get caught.

  In addition, in a driver support device that always displays an image of the inside of the composite hopper on a monitor installed only in the center of the screed, regardless of the operation of the changeover switch, etc. Even if there are other workers inside, there is not much change in the image projected on the monitor. For this reason, even if there is an operator entering the composite hopper, the problem is that it is overlooked in the image on the monitor, or when only one monitor is installed at the center of the screed, the end of the screed There was a problem that it was difficult to see the video on the monitor.

  Therefore, a technical problem to be solved arises so that the operator operating on the screed side can operate the vehicle while reliably recognizing the situation inside the composite hopper. The present invention aims to solve this problem.

The present invention has been proposed in order to achieve the above object, and the invention according to claim 1 is a pavement machine main body, and a composite material that is disposed on the front side of the pavement machine main body and contains the composite material. A hopper, a conveyor that conveys the composite material in the composite hopper to the rear side of the pavement machine main body, and the composite material sent by the conveyor on the construction base surface at the rear side of the pavement machine main body a screw spreader to spread sowing, the screed leveling floors in the rear side of the screw spreader plated broadened mixture material in the screw spreader, a monitoring camera for photographing a situation before Kigozai hopper, on the screed a monitor for the installed video display, the information displayed on the monitor by the switching instruction from the machine information to the photographed imaging information in the monitoring camera, the operation speed of the screw spreader and operating speed of the conveyor A paving machine comprising a switching means for switching instruction, and in conjunction with the switching operation of said switching means switches the information displayed on the monitor before Kiutsu image information from the machine information, the Provided is a pavement machine driver support apparatus including a controller that switches a conveyor operating speed and a screw spreader operating speed to a high speed mode higher than a normal mode speed.

  According to this configuration, when the switch means is operated, the information displayed on the monitor is switched from the machine information such as the speed, temperature, and setting to the video information captured by the monitoring camera under the control of the controller. After that, if necessary, the operation speed of the conveyor and the operation speed of the screw spreader can be temporarily switched to the high speed mode higher than the speed of the normal mode. Therefore, the information displayed on the monitor is switched from machine information to video information, and the content of the display information is greatly changed, so that the operation speed of the conveyor and the operation speed of the screw spreader can be switched to the high speed mode side. It is possible to reliably notify the worker who is working on the screed side. And by this notification, the worker can confirm the situation in the composite hopper through the monitor video, and can perform the work safely.

  According to a second aspect of the present invention, there is provided a driver assistance device for a paving machine according to the first aspect, wherein the switch means and the monitor are provided at two left and right sides of the screed.

  According to this configuration, the switch means and the monitor are provided at two positions on both the left and right sides of the screed, so that even if an operator works on either the left or right end of the screed, Switching operation can be easily performed by operating the provided switch means. Moreover, the situation in the composite hopper can be surely known by watching the images of the monitors provided at both ends.

  According to a third aspect of the present invention, in the configuration according to the first or second aspect, the switch means includes a changeover switch for instructing switching of information displayed on the monitor from the machine information to the video information, and the conveyor. And a high-speed feed switch that switches the operating speed of the screw spreader to the high-speed mode, and the controller is not after the change-over switch is turned on and the video information is displayed on the monitor. There is provided a pavement machine driver support device for controlling the speed of the conveyor and the speed of the screw spreader so as not to switch to the high speed mode even when the high speed feed switch is turned on.

  According to this configuration, it is not until after the change-over switch is turned on and the information displayed on the monitor is switched from the machine information to the video information, even if the high-speed feed switch is turned on. Since the operating speed and the operating speed of the screw spreader are not switched to a high-speed mode, safety measures are taken during the switching operation.

According to a fourth aspect of the present invention, in the configuration according to the first or second aspect, the controller is configured to turn on the switch means and to display information displayed on the monitor from the machine information captured by the monitoring camera. After switching to information, the switch means is turned off once, and then turned on again after a predetermined time, thereby controlling the operating speed of the conveyor and the operating speed of the screw spreader so as to switch to the high speed mode. A driver assistance device is provided.

  According to this configuration, when the switch means is turned on, information displayed on the monitor is switched from machine information to video information. Then, after switching, if the switch means is turned off again, and the switch means is not turned on again after a predetermined time, the operation speed of the conveyor and the operation speed of the screw spreader will not be switched to the high speed mode. Safety measures are taken.

  According to a fifth aspect of the present invention, in the configuration according to the first or second aspect, if the controller does not keep the switch means on for a predetermined time, the operation speed of the conveyor and the operation speed of the screw spreader are set. There is provided a driver assistance device for a paving machine which performs control so as not to be switched to the high speed mode.

  According to this configuration, the operation speed of the conveyor and the operation speed of the screw spreader are not switched to a high speed mode by simply pressing the switch means. If the ON operation is continued for a predetermined time, the operation speed of the conveyor Since the operating speed of the screw spreader can be switched to a high speed mode, safety measures are taken during the switching operation.

  According to the first aspect of the present invention, when an operation for switching the operation speed of the conveyor and the operation speed of the screw spreader to a high speed mode is performed, the information displayed on the monitor by the control of the controller is the machine information such as the speed, temperature, setting, and the like. Switch to the video information captured by the surveillance camera, inform the operator operating on the screed side that the operation to switch to the high speed mode has occurred, and the operator operating on the screed side is displayed on the monitor. It is possible to check the situation in the composite hopper through a monitor picture and then perform a switching operation to a high-speed mode, so that an improvement in safety can be expected.

  Since the invention according to claim 2 can be safely performed on both the left and right sides of the screed by using the changeover switches and monitors respectively provided at the two left and right sides of the screed, In addition to the effects, further improvement in safety can be expected.

  According to the third aspect of the present invention, the information displayed on the monitor is switched from the machine information to the video information photographed by the surveillance camera, and the video information is displayed on the monitor. Since the operation speed of the conveyor and the operation speed of the screw spreader cannot be switched to the high speed mode even when the switch is turned on, the safety can be further improved in addition to the effect of the invention according to claim 1 or 2. I can expect.

  According to the fourth aspect of the present invention, the information displayed on the monitor can be switched from the machine information to the video information only by turning on the switch means, and the switch means is turned off again for a predetermined time. In addition to the effect of the invention of claim 1 or 2, in order to prevent the operation speed of the conveyor and the operation speed of the screw spreader from being switched to the high speed mode unless the switch means is turned on again later, Further improvement in safety can be expected.

  According to the fifth aspect of the present invention, the conveyor speed and the screw spreader are not switched to the high speed mode by simply pressing the switch means. Therefore, in addition to the effect of the invention according to the first or second aspect, further improvement in safety can be expected.

The side view of the asphalt finisher which shows one Embodiment of this invention and mounts the driver | operator assistance apparatus. The top view of an asphalt finisher same as the above. The schematic diagram explaining the arrangement structure of the main member of an asphalt finisher same as the above. The schematic structure block diagram of the control circuit in a driver | operator assistance apparatus same as the above. The flowchart which shows an example of control by the controller of a driver assistance apparatus same as the above. The flowchart which shows another example of control by the controller of a driver assistance device same as the above. The flowchart which shows another example of control by the controller of a driver assistance apparatus same as the above. The flowchart which shows another example of control by the controller of a driver assistance apparatus same as the above.

In order to achieve an object of the present invention to enable an operator operating on the screed side to perform a driving operation in a state in which the situation inside the composite hopper is reliably recognized, A composite hopper disposed on the front side of the paver main body and containing the composite material, a conveyor for conveying the composite material in the composite hopper to the rear side of the paver main body, and the conveyor sent by the conveyor A screw spreader that spreads the mixed material spread on the construction base at the rear side of the main body of the paving machine, and a screed that spreads and spreads the mixed material spread by the screw spreader at the rear side of the screw spreader. , before and surveillance cameras for photographing a situation of Kigozai hopper, the monitor for installation video displayed on screed, imaging information captured by the monitoring camera information displayed on the monitor from the machine information In And Toggles instruction, and switching means for instructing switching the operation speed of the operating speed and the screw spreader of the conveyor, a paving machine comprising a in conjunction with the switching operation of said switching means, displayed on the monitor with switch before Kiutsu image information the information from the machine information, and realized as a controller for switching the operating speed of the screw spreader and operating speed of the conveyor faster faster manner than the speed of normal mode.

  Hereinafter, a driver assistance device for a paving machine according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a side view of an asphalt finisher as a paving machine equipped with a driver assistance apparatus according to the present invention, and FIG. 2 is a plan view of the asphalt finisher. In the figure, an asphalt finisher 11 has a vehicle body 13 supported by a crawler 12, and a self-propelled paver main body 15 that travels by the power of an engine (not shown) in a power unit 14 mounted on the vehicle body 13, A composite hopper 16 for accommodating the asphalt composite material provided at the front portion of the paving machine main body 15 and a left and right width direction (direction perpendicular to the paper surface) of the vehicle body 13 are supported. A screw spreader 17 spread over the surface G, and between the inside of the composite material hopper 16 and the front part of the screw spreader 17 are provided on the vehicle body 13 along the front-rear direction (left-right direction in FIG. 1). A conveyor 18 for conveying the asphalt mixture in the material hopper 16 to the rear side of the paver main body 15 to the position of the screw spreader 17, and a front end portion of the paver main body. A screed 21 that is connected and pulled to the paver main body 15 by a leveling arm 19 that is rotatably supported on both sides in the center in the front-rear direction 15 and that can be turned up and down by a cylinder 20; A control device 22 provided at an upper portion of the main body 15 and a cockpit 24 having a driver's seat 23 are provided.

  The traveling direction of the asphalt finisher 11 is the direction of arrow A in FIG. The composite hopper 16 is formed so as to be able to expand left and right with the conveyor 18 interposed therebetween, and the composite hopper 16 is provided by hydraulic cylinders 25 and 26 disposed on both sides of the front portion of the vehicle body 13. The left and right side surfaces of the vehicle body are configured to open and close by rotating in the vertical direction (inside and outside of the vehicle body 13 in the vehicle width direction).

  The driver seat 23 disposed in the cockpit 24 on the paving machine main body 15 is provided so as to be movable in the vehicle width direction, and the control device 22 is also adapted to the driver seat 23 where the driver sits. It can be moved to the left and right positions. Although not shown, the control device 22 is provided with a main panel 22a provided with various setting dials.

  In FIG. 2, a state when the driver's seat 23 and the control device 22 are moved to the left position is indicated by a solid line. In this state, the driver sits on the left driver's seat 23 and operates the control device 22. It is in a state suitable for doing. On the other hand, the state indicated by the alternate long and short dash line in FIG. 2 indicates a state when the driver's seat 23 is moved to the right position, and the control device 22 is also moved to the right position in conjunction with the driver's seat 23. A state suitable for a driver to sit on the right driver's seat 23 and operate the control device 22 can be obtained.

  The screed 21 is provided with screed boxes 28 on both the left and right sides for the operator to get on and operate the operation step 27 provided on the screed 21, and the cockpit 24 on the paver main body 15. As shown in FIG. 1 and FIG. 2, a monitoring camera 29 capable of photographing the inside of the composite hopper 16 is provided on the front side.

  FIG. 3 is a diagram schematically showing the arrangement of main parts of the asphalt finisher 11 shown in FIGS. 1 and 2. Further explanation will be made with reference to FIG. 3. In addition to the monitor 30 for displaying the video imaged by the monitoring camera 29, the conveyor 18 applies the mixed material in the mixed material hopper 16 to the pavement. A high-speed feed switch 31a for instructing to switch the operation speed of conveying to the rear side of the machine main body 15 and the operation speed of the screw spreader 17 (a feed-out speed) to a high-speed mode faster than a normal operation speed, and the monitor A change-over switch 31b for instructing to switch the image displayed at 30 from machine information for displaying machine information such as various speeds, temperatures, and settings in the asphalt finisher 11 to image information taken by the monitoring camera 29; The switch means 31 etc. which has is provided.

  FIG. 4 shows the procedure for switching the information displayed on the monitor 30 and the operation step 27 of the screed 21 when the operation speed of the conveyor 18 and the operation speed of the screw spreader 17 are switched to a high speed mode. It is a schematic block diagram showing an example of a control circuit for controlling the procedure of the driver assistance device for assisting the worker to work safely.

  In the figure, a control circuit controls the entire asphalt finisher 11 according to a predetermined procedure, a controller 32 mainly composed of a microcomputer, the monitor camera 29 and the monitor for displaying images taken by the monitor camera 29. 30, the normally open type changeover switch 31 a for switching the operation speed of the conveyor 18 and the operation speed of the screw spreader 17 from a normal speed to a higher speed mode faster than the normal speed, and the monitor 30 includes the machine information. To switch the mode of displaying the video information captured by the monitoring camera 29 and the mode of displaying the video information taken by the monitoring camera 29, the operating speed of the conveyor 18 and the operating speed of the screw spreader 17 respectively. Switching valve 34 and In is configured.

  That is, in the asphalt finisher 11, an operator rides on the work step 27 provided on the screed 21 and turns on / off the change-over switch 31 b provided on the screed box 28. The information displayed in (1) can be alternatively switched between the machine information and the video information. In addition, by switching the high speed feed switch 34, the operation speed of the conveyor 18 and the operation speed of the screw spreader 17 can be switched to a high speed mode in a safe state.

  FIG. 5 shows an example of control in which the controller 32 selectively switches the display of the monitor 30 to the machine information or the video information when the changeover switch 31b of the switch means 31 is turned ON / OFF. It is a flowchart. In FIG. 5, the controller 32 indicates that when the change-over switch 31b is OFF (open), the display of the monitor 30 displays the operating speed of the conveyor 18, the operating speed of the screw spreader 17, the engine temperature, various settings, and the like. Machine information is displayed (step S1). Therefore, the worker who works on the work step 27 of the screed 21 can work while looking at the machine information displayed on the monitor 30.

  The controller 32 monitors whether the changeover switch 31b is switched from OFF to ON (step S2), and when the changeover switch 31b is switched from OFF to ON, the display on the monitor 30 is changed to the machine. The display is switched from the information display to the video display for displaying the video in the composite hopper 16 taken by the monitoring camera 29 (step S3).

  Therefore, a worker who works on the work step 27 of the screed 21 can work while viewing the video information displayed on the monitor 30.

  This video display is continued until the changeover switch 31b is turned off again (step S4), and when it is turned off, the process proceeds to step S1 and is switched to machine information.

  FIG. 6 is a flowchart showing an example of control in which the control procedure of FIG. 5 is combined with the operation of the high-speed feed switch 31a of the switch means 31.

  The control procedure of FIG. 6 will be described next. The controller 32 controls the monitor 30 to display the machine information when the changeover switch 31b is OFF (step S1). The changeover switch 31b is monitored for switching from OFF to ON (step S2), and when the changeover switch 31b is switched from OFF to ON (closed), the display of the monitor 30 indicates the machine information. The display is switched to a camera image display for displaying an image in the composite hopper 16 taken by the monitoring camera 29 (step S3). Therefore, the worker who is working on the work step 27 provided in the screed 21 can check the safety in the composite hopper 16 from the video information displayed on the monitor 30.

  In step S4, it is monitored whether the changeover switch 31b is switched from ON to OFF. When the changeover switch 31b is switched from ON to OFF, the process returns to step S1, and the display on the monitor 30 is switched from the video display to the machine information display.

  On the other hand, when the changeover switch 31b is not switched from ON to OFF, that is, when ON is continued, the process proceeds to step S6, where the operation speed of the conveyor 18 and the operation speed of the screw spreader 17 are high speed modes. Thus, the switching valve 34 is controlled. Then, the process proceeds to step S7, where it is monitored whether or not the high-speed firing switch 31a is switched off, and the high-speed mode is maintained while it is not switched off.

  On the other hand, when the changeover switch 31b is switched from ON to OFF, the process proceeds to step S8 to return from the high speed mode to the normal mode, and then returns to step S1.

  Therefore, in this asphalt finisher 11, when the operator gets on the work step 27 provided in the screed 21 and operates the changeover switch 31b provided in the screed box 28, the monitor 30 Can be switched between the machine information and the video information. Further, by operating the high-speed feed switch 34, the operation speed of the conveyor 18 and the operation speed of the screw spreader 17 can be switched to a high-speed mode in a safe state.

FIG. 7 shows that when the high-speed feed switch 31a is turned ON / OFF, the controller 32 selectively switches the display of the monitor 30 to the machine information and the video information, and the operation speed of the conveyor 18 It is a flowchart which shows an example of the control which switches the operating speed of the said screw spreader 17 to a high-speed mode, respectively. That is, in the control procedure of FIG. 7, instead of turning the changeover switch 31b ON / OFF, the high-speed feed switch 31a is turned ON / OFF according to a predetermined procedure, thereby switching between machine information and video information and operating speed. Can be executed only by the high-speed firing switch 31a.

  The control procedure of FIG. 7 will be described next. The controller 32 controls the monitor 30 to display the machine information when both the change-over switch 31b and the high-speed feed switch are OFF (step). S11). Then, it is monitored whether or not the high speed start switch 31a is turned on (step S12).

  When the high-speed firing switch 31a is turned on once, the display on the monitor 30 is switched from the machine information to the camera video information (step S13). Therefore, an operator who is working on the work step 27 provided in the screed 21 can use the video information displayed on the monitor 30 at the same time as the high-speed firing switch 31a is turned on once. Safety in the composite hopper 16 can be confirmed.

  Thereafter, the controller 32 monitors whether or not the high-speed feed switch 31a is turned on again, that is, whether it is turned on for the second time (step S14). When the second turn-on of the high-speed firing switch 31a is confirmed, it is determined whether t1 seconds (for example, 3 seconds) have passed since the previous (first) ON operation (step S15). If t1 seconds or more have passed since the first ON operation, the first ON operation of the high-speed lifting switch 31a is cleared (step S16), and the process returns to step S11. Therefore, in this control, when the video information displayed on the monitor 30 is seen and there is a problem in the composite hopper 16, even if the high-speed feed switch 31a is pushed again after t1 seconds, The ON operation for the second time is cleared, and the operation speed of the conveyor 18 and the operation speed of the screw spreader 17 are not switched to a high speed mode, thereby ensuring safety.

  On the other hand, if t1 seconds have not elapsed since the previous (first) ON operation, the process proceeds to step S17 to determine whether or not the high-speed feed switch 31a is turned off. If turned off, the process returns to step S11 after clearing step S16. On the other hand, when the high-speed feed switch 31a is not turned OFF, the switching valve 34 is controlled so that the operation speed of the conveyor 18 and the operation speed of the screw spreader 17 are in a high-speed mode in step S18. . Then, returning to step S17, the high speed mode is maintained until the high speed start switch 31a is turned off. When turned OFF, the high-speed mode is returned to the normal mode, and after that, the process returns to step S11 after clearing step S16.

FIG. 8 shows that the controller 32 selectively switches the display of the monitor 30 between the machine information and the camera video information when the high speed start switch 31a is turned ON / OFF. It is a flowchart which shows an example of the control which switches the operation speed of the said conveyor 18 and the operation speed of the said screw spreader 17 to a high-speed aspect, respectively, when ON operation of 31a is pushed long for t2 second (for example, 2 second or more). That is, in the control procedure of FIG. 8, instead of turning the changeover switch 31b ON / OFF, the high-speed feed switch 31a is turned ON / OFF according to a predetermined procedure, thereby switching between machine information and video information and operating speed. Can be executed only by the high-speed firing switch 31a.

  The control procedure of FIG. 8 will be described next. The controller 32 controls the monitor 30 to display the machine information when both the changeover switch 31b and the high-speed feed-out switch are OFF (open). (Step S21). Then, it is monitored whether or not the long press is turned on so that the high speed start switch 31a remains on (step S22).

  When the high-speed feed switch 31a is turned on, the display on the monitor 30 is switched from the machine information to the video information (step S23). Therefore, an operator who is working on the work step 27 provided in the screed 21 can perform the operation based on the video information displayed on the monitor 30 at the same time as the high-speed firing switch 31a is turned on. Safety in the material hopper 16 can be confirmed.

  Then, it is monitored whether or not the high speed start switch 31a is kept on, that is, whether or not the long press continues for t2 seconds (for example, 2 seconds) or more (step S24).

  If the ON operation of the high speed start switch 31a is canceled before t2 seconds, the ON operation of the high speed start switch 31a is canceled in step S25, and the process returns to step S21. Therefore, when the video information displayed on the monitor 30 is seen and there is a problem in the composite hopper 16, if the pressing (ON operation) of the high-speed feed switch 31a is canceled within t2 seconds, The operating speed of the conveyor 18 and the operating speed of the screw spreader 17 are not switched to a high speed mode, thereby ensuring safety.

  On the other hand, when the ON operation of the high speed start switch 31a has passed t2 seconds ago, that is, when it is pressed for a long time, the process proceeds to step S26, and it is determined whether or not the high speed start switch 31a has been turned OFF. If turned off, the process returns to step S21 after clearing step S26. On the other hand, if the high-speed feed switch 31a is not turned OFF, the switching valve 34 is controlled so that the operation speed of the conveyor 18 and the operation speed of the screw spreader 17 are in a high-speed mode in step S27. . Then, returning to step S26, the high speed mode is maintained until the high speed start switch 31a is turned off. When turned OFF, the high-speed mode is returned to the normal mode, and after that, the process returns to step S21 after clearing step S25.

  It should be noted that the present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified ones.

  In the above embodiment, the case where the pavement machine driver support device according to the present invention is applied to an asphalt finisher has been described, but the present invention is not limited to this and can be widely applied to road paving machines. is there.

11 Asphalt finisher (paving machine)
12 Crawler 13 Car Body 14 Power Unit 15 Paver Main Body 16 Composite Hopper 17 Screw Spreader 18 Conveyor
19 leveling arm 20 cylinder 21 screed 22 control device 22a main panel 23 driver's seat 24 cockpit 25, 26 hydraulic cylinder 27 working step 28 screed box 29 monitoring camera 30 monitor 31a high speed start switch 32 controller 31b changeover switch 34 changeover valve

Claims (5)

A pavement machine main body, a composite hopper disposed on the front side of the pavement machine main body and containing the composite material, a conveyor for conveying the composite material in the composite hopper to the rear side of the pavement machine main body, A screw spreader that spreads the composite material sent by the conveyor on the construction base surface at the rear side of the main body of the paving machine, and a composite material spread by the screw spreader at the rear side of the screw spreader. laying leveling screed and, prior to a monitoring camera for photographing a situation of Kigozai the hopper, and a monitor for image display that is mounted on the screed, the information displayed on the monitor by the monitor camera from the machine information A pavement machine comprising switching means for instructing to switch to imaged imaging information, and for instructing to switch between the operating speed of the conveyor and the operating speed of the screw spreader ,
In conjunction with the switching operation of said switching means switches the information displayed on the monitor before Kiutsu image information from the machine information, the operating speed of the screw spreader and operating speed of the conveyor than the speed of normal mode A driver assistance device for a paving machine, comprising a controller for switching to a fast high-speed mode.   The pavement machine driver support apparatus according to claim 1, wherein the switch means and the monitor are provided at two positions on both the left and right sides of the screed.   The switch means is a switch for instructing to switch the information displayed on the monitor from the machine information to the video information, and a high-speed operation for switching the operation speed of the conveyor and the operation speed of the screw spreader to the high-speed mode. The controller is configured to turn on the change-over switch and display the video information on the monitor until the controller switches the speed of the conveyor and the screw even if the high-speed feed switch is turned on. The pavement machine driver support device according to claim 1 or 2, wherein the speed of the spreader is controlled so as not to be switched to the high speed mode. The controller turns on the switch means to switch the information displayed on the monitor from the machine information to video information photographed by the monitoring camera, and then turns off the switch means once, after a predetermined time. 3. The pavement machine driver support apparatus according to claim 1, wherein the operation speed of the conveyor and the operation speed of the screw spreader are controlled to be switched to the high speed mode by turning on again.   The controller performs control so that the operation speed of the conveyor and the operation speed of the screw spreader cannot be switched to the high speed mode unless the switch means is kept on for a predetermined time. Item 3. A driver assistance device for a paving machine according to item 1 or 2.

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