JP3750804B2 - Road traffic regulation sign display device for vehicle installation - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a road traffic regulation sign display device mounted on a vehicle that displays a road traffic regulation sign at a road construction site and protects a worker from a rush accident of a traveling vehicle.
[0002]
[Prior art]
In road construction work areas and lane-regulated places associated with construction regulations, a road traffic regulation sign display device is installed on the road in order to urge the traveling vehicle to change lanes, or a road traffic regulation sign display device is installed on a vehicle such as a truck. It is mounted on the road and placed on the road.
[0003]
Since this road traffic control sign display device is used during the day and at night, letters, construction signs, etc. are displayed with lamps and high-intensity LEDs, and the driver of the vehicle traveling on the road is at an early stage from a distance. It is necessary to install it so that it can be recognized and stand out as high as possible on the road.
The vehicle cannot be driven unless the vehicle height falls within 3.8 m by law. For this reason, when a road traffic regulation sign display device is mounted on a vehicle, the road traffic regulation sign display device must be able to be stored compactly. It is also desirable to reduce the wind resistance during travel as much as possible. Therefore, as shown in Japanese Utility Model Publication No. 51-9680, for example, a road traffic regulation sign display device generally has a display portion configured in two upper and lower stages so that the upper stage can be moved up and down.
[0004]
However, the two-step lift type road traffic regulation sign display device has a limit to increase the ground height at the time of installation, and it is necessary to increase the number of steps to increase it. However, in order to increase the number of stages, it is necessary to provide a large number of lifting means, and the mass of the road traffic regulation sign display device increases.
If it is a road traffic control sign display device permanently installed in a dedicated vehicle for road control, it will not cause much trouble due to the increase in mass, but it can be attached to and detached from the vehicle carrier and mounted on the vehicle carrier such as a truck as necessary. In the road traffic regulation sign display device used in the past, when the mass increases, it becomes difficult to attach and detach.
[0005]
In addition, when a sunflower type LED rotating light is provided at the top of the road traffic regulation sign display device to improve visibility from a distance at night, the height of the sunflower LED rotating light is also included in the vehicle height during vehicle travel, It becomes possible to display only at a lower position of a sign such as a character. For this reason, further multi-stages are required.
Therefore, the sunflower LED rotating lamp can be configured to be manually raised and lowered so that the lifting and lowering means of the display unit does not increase. However, in this case, when installing the road traffic regulation sign display device at the road construction site, the worker must go out of the vehicle and perform the installation work, and there is a risk of being collided with the traveling vehicle during the work.
[0006]
Therefore, it is desired that the road traffic regulation sign display device can install and store all the display unit and the sunflower-type LED rotating lamp by remote control from the driver's cab or a safe place of the vehicle, and suppress the increase in mass.
In addition, the road traffic regulation sign display device that is detachably mounted on the loading platform of the vehicle is provided with a vehicle entry prevention device in order to prevent an accident where a traveling vehicle enters the road construction site, and the vehicle entry prevention device is provided during work. There are things that are manually undulated and installed on the road.
[0007]
However, in order to manually install and store the vehicle entry prevention device, the worker must work behind the vehicle such as a truck at a high-traffic road construction site. There is a risk of a rear-end collision with a traveling vehicle.
A dedicated vehicle for road regulation with a road traffic regulation sign display device installed is equipped with a vehicle intrusion prevention device that can be installed and stored automatically by operating from the driver's cab or safe position of the vehicle. (See JP-A-6-156168).
[0008]
In consideration of safety, the road traffic control sign display device that can be attached to and detached from the vehicle platform can be installed and stored automatically by remote control from the driver's cab or safe position. It is necessary to provide a device.
In addition, since road vehicles are not loaded with load, there is no stagnation of the loading platform, and only the vehicle intrusion prevention device needs to be raised and lowered during installation and storage. The road traffic control sign display device that can be attached to and detached from the loading platform is mounted on the loading platform of vehicles such as trucks as necessary. Therefore, it is desirable to automatically open and close the back of the loading platform.
[0009]
[Problems to be solved by the invention]
The present invention solves the above-mentioned problem in a road traffic regulation sign display device that can be detachably mounted on a loading platform of a vehicle. The vehicle can extend and retract a display unit and a rotating light in multiple stages and can suppress an increase in mass. An object is to provide a road traffic regulation sign display device for mounting.
[0010]
It is another object of the present invention to provide a vehicle-mounted road traffic regulation sign display device that includes a vehicle entry prevention device and that can be installed and stored by remote control from a driver's cab or a safe place.
[0011]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention is a vehicle-mounted road traffic regulation sign display device that can be attached to and detached from a vehicle loading platform. The display unit is configured in multiple stages, and is provided separately from the display unit. A revolving lamp and a telescopic device capable of moving up and down in a multi- stage configuration in which the display unit and the revolving lamp are combined so that the revolving lamp is the uppermost stage .
In addition, by providing a vehicle entry prevention device that can rotate back and forth, it is possible to prevent an accident caused by entry of a traveling vehicle into a road construction site.
[0012]
When using this road traffic regulation sign display device mounted on a vehicle, the vehicle is mounted and fixed on the platform of a vehicle such as a truck, and after the vehicle has traveled to a predetermined position and stopped, the telescopic device is extended. Install the display unit and the rotating lamp. At the same time, the vehicle entry prevention device is rotated and installed backward. When the work is completed, the telescopic device is reduced, the display unit and the rotating lamp are lowered and stored, and the vehicle entry preventing device is rotated and stored forward.
[0013]
When the road traffic regulation sign display device is not used, the fixing is released and the vehicle is removed from the loading platform of the vehicle. By removing the road traffic regulation sign display device, the vehicle is loaded on the loading platform and used for normal transportation work.
The road traffic regulation sign display device has a multi-stage display unit, and the display unit and the rotating lamp are moved up and down with a single telescopic device. Therefore, the ground height at the time of installation can be increased, and an increase in mass can be suppressed.
[0014]
In addition, the installation and storage operation of the vehicle entry prevention device is equipped with an operation device that can be remotely operated, so that it is not necessary for an operator to go to the rear of the vehicle and perform installation and storage work on a road construction site with a lot of traffic, A rear-end collision caused by a traveling vehicle during installation and storage can be prevented. Similarly, the telescopic operation of the telescopic device is provided with an operation device that can be remotely operated, so that the lifting operation can be performed even from inside the driver's cab of the vehicle, for example.
[0015]
Furthermore, the road traffic regulation sign display device is provided with a frame that is connected and fixed to the vehicle bed or chassis frame, so that the side turn cannot be opened or closed by connecting and fixing with a rope or the like from the side turn side as in the past. Therefore, it becomes possible to freely open and close the side of the loading platform of the vehicle, making it easier to load the cargo.
By providing the display unit with a pocket for inserting a predetermined sign from above, it is not necessary to replace the sign from the side of the vehicle, improving safety and significantly reducing the loss of the sign when the vehicle is running. .
[0016]
If an LED sign board is provided in a display part, signs, such as arbitrary characters and a figure, can be displayed as needed.
By providing a light shielding plate on the side of the rotating lamp, it is possible to block the irradiation of the rotating lamp in the lateral direction and reduce glare in a residential area at night.
By providing the display unit with an internally illuminated arrow mark that can project laterally, a separate arrow mark need not be separately installed on the side of the vehicle.
[0017]
By providing an unstored alarm device that issues an alarm when the vehicle is driven in a state where the display unit is not stored, it is possible to prevent the vehicle from traveling while the display unit extends and the vehicle height exceeds the regulation value.
By providing the vehicle intrusion prevention device with a connecting device that is connected to the rear end of the vehicle loading platform and interlocks the rear end when the vehicle is turned, it can be automatically installed and stored without separately opening and closing the rear end.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a side view of a storage state of a road traffic regulation sign display device mounted on a vehicle according to an embodiment of the present invention, FIG. 2 is a front view of the road traffic regulation sign display device mounted on a vehicle, and FIG. FIG. 4 is a side view of an installed state of a road traffic regulation sign display device for mounting on a vehicle, and FIG. 5 is an installation state of a road traffic regulation sign display device for installation of a vehicle. FIG. 6 is a plan view of an installation state of a road traffic regulation sign display device mounted on a vehicle, FIG. 7 is a rear view of an installation state of a road traffic regulation sign display device mounted on a vehicle, and FIG. -A sectional view, FIG. 9 is an explanatory view of the connecting state of the rotating cylinder and the link, FIG. 10 is an explanatory view of the connecting state of the rear turn and the connecting tool, FIG. 11 is a side view of the standing state of the light shielding plate, 12 is a front view of the light shielding plate in a standing state, and FIG. 13 is a side view of the light shielding plate in a lying state. 4 is a front view of a state where a sign is inserted into the pocket of the display unit, FIG. 15 is a front view of a state where no sign is inserted into the pocket of the display unit, FIG. 16 is a front view of the transmitter, and FIG. 18 is a side view of the intermediate installation state, FIG. 18 is a front view of the display unit in the intermediate installation state, and FIG. 19 is an electric circuit diagram of the unstored alarm device.
[0019]
This vehicle-mounted road traffic regulation sign display device 1 is provided with a vehicle entry prevention device 4 that can be rotated back and forth by a rotation cylinder 3 on the front side of a frame 2, and can be moved up and down by a telescopic device 5 at the back. A display unit 6 is provided, and is mounted on the rear end of the loading platform 8 of the vehicle 7 toward the rear (opposite to the traveling direction of the vehicle).
The frame 2 is installed on the loading platform 8 of the vehicle 7 and is connected and fixed to the loading platform 8 or the chassis frame 31 by coupling means such as bolts. However, the bolts and the like can be freely removed when the road traffic regulation sign display device 1 is attached or detached.
[0020]
The display unit 6 is configured in three stages of a lower display unit 11, a middle display unit 12, and an upper display unit 13, and the lower display unit 11 is fixedly erected on the frame 2.
The telescopic device 5 includes a base tube 14, an intermediate tube 16, and a tip tube 19 that are slidably fitted to each other, and the base tube 14 is fixedly erected on the frame 2. As shown in FIG. 8, the telescopic device 5 includes a known three-stage cylinder device 80 (see Japanese Patent No. 3126657). The three-stage cylinder device 80 has a cylinder tube 81 connected to the distal end cylinder 19 and an intermediate portion. The rod 82 is connected to the intermediate cylinder 16, the distal end rod 83 is connected to the proximal cylinder 14, and the expansion / contraction device 5 can be expanded and contracted up and down by a three-stage cylinder device 80.
[0021]
The middle display unit 12 has an upper end connected to the tip of the intermediate cylinder 16 of the telescopic device 5 via a middle bracket 15, and a roller 17 that rolls along the lower display unit 11 at the lower end. ing.
The upper display portion 13 is connected to the distal end portion of the distal end tube 19 of the telescopic device 5 via the upper bracket 18 at a position near the upper portion of about 1/3, and rolls along the middle display portion 12 at the lower end portion. A roller 20 is provided.
[0022]
As shown in FIGS. 14 and 15, a pocket 22 for inserting a sign 21 indicating a construction name from above is provided on the front surface of the upper display unit 13.
Further, an LED sign board 35 that displays an arrow sign is disposed above the pocket 22, and an LED sign board 36 that displays a character sign is disposed below the pocket 22. The upper LED sign board 35 can display an arrow mark for instructing a predetermined direction such as one direction left or right, or left / right sorting. The lower LED sign plate 36 can display an arbitrary message as characters as required.
[0023]
A rotating lamp 23 is installed on the upper display unit 13, and a shading plate 24 that can be raised and lowered is provided on both the left and right sides.
The shading plate 24 is supported by a hinge 91 so as to be able to stand upside down. As shown in FIGS. 11 to 13, the catcher 92 is hung on a catcher claw 93 provided on the upper display unit 13 as shown in FIGS. In the state of being laid down, a catcher 95 provided on the side surface of the upper display portion 13 is hung on the catcher claw 94 and fixed.
[0024]
On the back of the display unit 6, there is provided an internally illuminated arrow mark 26 that can be rotated by the arm 25 and protruded to the side.
Further, the upper bracket 18 is provided with a pulley 27, and a support 29 of a sunflower type LED rotating lamp 28 is slidably supported. A wire rope 30 is wound around the pulley 27, one end of the wire rope 30 is connected to the lower end of the support 29 of the sunflower type LED rotating lamp 28, and the other end is connected to the middle bracket 15.
[0025]
In the vehicular intrusion prevention device 4, attachment members 42 having cushion cushions 41, which are cylindrical shock absorbers, are pivotally supported by pins 43 at two positions on the left and right sides of the frame 2 so as to be pivotable back and forth.
The rotating cylinder 3 is attached between the frame 2 and the attachment member 42 via upper and lower links 44 and 45. One end of each of the upper and lower links 44 and 45 is connected to the tip of the rod of the rotating cylinder 3 by a pin 46. The other end of the upper link 44 is connected to the mounting member 42 by a pin 47, and the other end of the lower link 45 is connected to the frame 2 by a pin 48.
[0026]
As shown in FIG. 10, the attachment member 42 is provided with a connecting tool 50 that is connected to the rear turning 49 of the vehicle 7 and interlocks with the rear turning 49 when turning. The connector 50 includes a spring 51 having one end attached to the attachment member 42 and a holding portion 52 that is attached to the other end of the spring 51 and holds the upper end portion of the rear turn 49.
On the frame 2, a power generator 53 and a power unit 54 are provided as power sources for the telescopic device 5 and the rotating cylinder 3. The power unit 54 includes an electric DC motor, a hydraulic pump, an electromagnetic valve, and a tank. The electric DC motor is driven by a vehicle power source to operate the hydraulic pump, and is supplied to the telescopic device 5 and the rotating cylinder 3 by the electromagnetic valve. The direction of the pressure oil is controlled. The power generator 53 supplies power to a high-intensity LED lamp used in the LED sign plates 35 and 36 of the display unit 6 and the sunflower LED rotating lamp 28.
[0027]
Further, in order to enable remote operation of the installation and storage operation, a receiver 56 is provided for receiving an operation signal sent from the remote operation transmitter 55 and sending a control signal to the power generator 53 and the electromagnetic valve. ing.
As shown in FIG. 16, the transmitter 55 for remote operation includes a power switch 57, a power generator start switch 58, a power generator stop / choke switch 59, a telescopic device extension switch 60, a telescopic device reduction switch 61, A cushion drum storage switch 62 and a cushion drum installation switch 63 are provided, and remote control is performed by these switches.
[0028]
When the road traffic regulation sign display device 1 for vehicle mounting is used, the vehicle 2 is mounted on the loading platform 8 of the vehicle 7 and the frame 2 is fixed to the loading platform 8 or the chassis frame 31 so that the vehicle 7 travels to a predetermined position. After the vehicle is stopped, a remote operation for installing the transmitter 55 from a safe place is performed.
First, the power switch 57 is turned on, and then the power generator start switch 58 is pressed to start the power generator. Next, when the cushion drum installation switch 63 is pressed, the rotation cylinder 3 is extended, and the cushion drum 41 is rotated to the rear of the vehicle 7 together with the mounting member 42, so that the rear of the vehicle 7 as shown in FIGS. Installed near the ground. At this time, the rear turning 49 of the vehicle 7 is also interlocked with the attachment member 42 by the connector 50 and is rotated rearward, so that it is not necessary to separately open the rear turning 49. Thereby, the safety | security with respect to the rush of the traveling vehicle from back is ensured.
[0029]
Then, when the expansion / contraction device extension switch 60 is pressed, the tip tube 19 of the expansion / contraction device 5 is extended, the upper display unit 13 is raised, and the wire rope 30 is pulled to provide a sunflower LED provided separately from the display unit 6. The revolving lamp 28 rises to the intermediate installation state shown in FIGS. When the expansion / contraction device 5 continues to expand, the intermediate cylinder 16 expands and the middle display unit 12 rises to the complete installation state shown in FIGS.
[0030]
In addition, when construction is performed in a residential area at night, the light shielding plate 24 is erected in advance. Further, if necessary, the arm 25 is rotated right or left, and the internally illuminated arrow mark 26 is projected to the side. Since this work can be performed manually on the loading platform 8 by a worker, it is safe even manually. However, it can be configured to be remotely operable by providing a rotation actuator.
[0031]
When the work is finished, the expansion / contraction device reduction switch 61 is pressed to reduce the expansion / contraction device 5, and the display unit 6 and the sunflower-type rotary lamp 28 are lowered and stored. Then, the cushion storage switch 62 is pressed to reduce the rotation cylinder 3, the cushion drum 41 is rotated and stored on the loading platform 8, and the power generator stop / choke switch 59 is pressed to stop the power generator 53. Then, the power switch 57 is turned off.
[0032]
The vehicle-mounted road traffic regulation sign display device 1 does not completely store the display unit 6 by mistake, and the vehicle 7 travels while the display unit 6 extends and the vehicle height exceeds the regulation value. An unstored alarm device is provided to prevent this.
As shown in FIG. 19, the non-storage alarm device includes a display non-storage detection switch 70, a side brake operation detection switch 71, an alarm buzzer 72, and an alarm lamp 73.
[0033]
The alarm buzzer 72 and the alarm lamp 73 are connected to the power source 76 in series via a normally open relay 74 and a normally closed relay 75. The display non-storage detection switch 70 is connected to the coil of the normally open relay 74, and the side brake operation detection switch 71 is connected to the coil of the normally closed relay 75.
The display unit non-storage detection switch 70 is installed at a position facing the upper bracket 18 when the upper bracket 18 is lowered and the display unit 6 is completely stored, and the display unit 6 is fully stored. Is turned off and turned on when the upper bracket 18 is not retracted.
[0034]
The side brake operation detection switch 71 is turned on when the side brake of the vehicle 7 is applied, and turned off when the side brake is released.
During operation, the vehicle 7 is stopped by applying a side brake, so that the normally closed relay 75 is open, and the display unit 6 is raised and the display unit non-storage detection switch 70 is turned on. There is no alarm. After the work is finished, when the side brake is released in order to drive the vehicle while the display unit 6 is in the unfolded state, the normally closed relay 75 is closed, the alarm buzzer 72 emits an alarm sound, and an alarm lamp 73 lights up.
[0035]
When the road traffic regulation sign display device 1 is not used, the frame 2 is unfixed and removed from the loading platform 8 of the vehicle 7. The vehicle 7 removes the road traffic regulation sign display device 1 and loads the load on the loading platform 8 to be used for normal transportation work.
The road traffic regulation sign display device 1 is configured such that the display unit 6 is a lower display unit 11, a middle display unit 12, an upper display unit 13, and a sunflower LED rotating lamp 28, and the sunflower LED rotating lamp 28 is the uppermost stage. In accordance with the above, it is configured in four stages, and this is moved up and down by a single telescopic device 5, so that the ground height at the time of installation can be increased and an increase in mass can be suppressed.
[0036]
Moreover, since the vehicle entry prevention device 4 that can be rotated back and forth is provided, it is possible to prevent an accident caused by the entry of the traveling vehicle to the road construction site.
By providing the transmitter 55 and the receiver 56 for remotely controlling the installation and storage operation, it is not necessary for the worker to perform the installation or storage work behind the vehicle 7 at the road construction site where there is a lot of traffic. A rear-end collision caused by a traveling vehicle during installation and storage can be prevented.
[0037]
Furthermore, since the road traffic regulation sign display device 1 includes the frame 2 connected and fixed to the loading platform 8 or the chassis frame 31 of the vehicle 7, it is connected and fixed with a rope or the like from the side turn 65 side as in the past. Therefore, the side turn 65 of the loading platform 8 of the vehicle 7 can be freely opened and closed, and the front of the loading platform 8 is mounted even when the road traffic regulation sign display device 1 is mounted. It is possible to easily load a load in the part space.
[0038]
Since the display unit 6 includes the pocket 22 into which the sign 21 is inserted from above, it is not necessary to replace the sign 21 from the side of the vehicle 7 and safety is improved.
Since the LED display plates 35 and 36 are provided in the display unit 6, signs such as arbitrary characters and arrows can be displayed as necessary.
A light shielding plate 24 is provided on the side of the revolving lamp 23 to block the irradiation of the revolving lamp 23 in the lateral direction, thereby reducing glare in a residential area at night.
[0039]
Since the display unit 6 is provided with the internally illuminated arrow mark 26 that can be extended to the side, an operation of separately installing a dedicated arrow mark on the side of the vehicle 7 is also unnecessary.
Since the vehicle entry prevention device 4 is provided with a connecting device 50 that is connected to the rear turning 49 of the loading platform 8 of the vehicle 7 and interlocks with the rear turning 49 when rotating, it is installed and stored without separately opening and closing the rear turning 49. Is possible.
[0040]
Since the unstored alarm device is provided, the display unit 6 is not completely stored, and the display unit 6 can be prevented from extending and the vehicle 7 from traveling with the vehicle height exceeding the regulation value. it can.
[0041]
【The invention's effect】
As described above, the vehicle-mounted road traffic regulation sign display device of the present invention can extend and retract the display unit and the rotating lamp in multiple stages and can suppress an increase in mass.
In addition, the installation and storage operation can be performed safely by providing the vehicle entry prevention device and the remote-controllable operation device.
[Brief description of the drawings]
FIG. 1 is a side view of a storage state of a road traffic regulation sign display device mounted on a vehicle according to an embodiment of the present invention.
FIG. 2 is a front view of a road traffic regulation sign display device mounted on a vehicle.
FIG. 3 is a plan view of a road traffic regulation sign display device mounted on a vehicle.
FIG. 4 is a side view of an installed state of a road traffic regulation sign display device mounted on a vehicle.
FIG. 5 is a front view of an installed state of a road traffic regulation sign display device mounted on a vehicle.
FIG. 6 is a plan view of an installed state of a road traffic regulation sign display device mounted on a vehicle.
FIG. 7 is a rear view of an installed state of a road traffic regulation sign display device mounted on a vehicle.
FIG. 8 is a cross-sectional view taken along line AA in FIG.
FIG. 9 is an explanatory diagram of a connection state between a rotation cylinder and a link.
FIG. 10 is an explanatory view of a connection state between the rear turn and the connection tool;
FIG. 12 is a front view of the light shielding plate in an upright state.
FIG. 13 is a side view of the light shielding plate in a lying state.
FIG. 14 is a front view showing a state where a sign is inserted into the pocket of the display unit;
FIG. 15 is a front view showing a state where no sign is inserted into the pocket of the display unit;
FIG. 16 is a front view of a transmitter.
FIG. 17 is a side view of the display unit in an intermediate installation state.
FIG. 18 is a front view of an intermediate installation state of a display unit.
FIG. 19 is an electric circuit diagram of a non-storage alarm device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Road traffic control sign display apparatus 2 Frame 3 Cylinder for rotation 4 Vehicle entry prevention apparatus 5 Telescopic device 6 Display part 7 Vehicle 8 Cargo bed 11 Lower display part 12 Middle display part 13 Upper display part 14 Base end cylinder 15 Middle bracket 16 Intermediate cylinder 18 Upper bracket 19 End tube 21 Marking 22 Pocket 23 Rotating light 24 Shading plate 26 Internally illuminated arrow mark 27 Pulley 28 Sunflower type LED rotating light 29 Post 30 Wire rope 31 Chassis frame 41 Cushion drum 42 Mounting member 49 Rear turning 50 Connecting tool 70 Display non-storage detection switch 71 Side brake operation detection switch 72 Alarm buzzer 73 Alarm lamp

Claims (10)

A road traffic regulation sign display device mounted on a vehicle that can be attached to and detached from a loading platform of a vehicle, comprising a multi-stage display unit, a rotary lamp provided separately from the display unit, and the rotary lamp at the top level. A road traffic regulation sign display device for mounting on a vehicle, comprising a telescopic device capable of moving up and down in a multi- stage configuration including the display unit and the rotating lamp .   The vehicle-mounted road traffic regulation sign display device according to claim 1, further comprising a vehicle entry prevention device capable of rotating in the front-rear direction.   The road traffic regulation sign display device for mounting on a vehicle according to claim 1 or 2, further comprising an operation device capable of remotely operating an installation and storage operation.   The road traffic regulation sign display device for mounting on a vehicle according to claim 1, 2 or 3, further comprising a frame connected and fixed to a loading platform or chassis frame of the vehicle.   The road traffic regulation sign display device for mounting on a vehicle according to claim 1, 2, 3, or 4, further comprising a pocket for inserting a predetermined sign from above into the display unit.   The road traffic regulation sign display device for mounting on a vehicle according to claim 1, 2, 3, 4, or 5, wherein the display section includes an LED sign plate.   The vehicle-mounted road traffic regulation sign display device according to claim 1, further comprising a light shielding plate on a side of the rotating lamp.   8. A road traffic regulation sign display device for mounting on a vehicle according to claim 1, wherein the display unit is provided with an internally-illuminated arrow sign that can project laterally.   The road traffic regulation sign for mounting on vehicles according to claim 1, 2, 3, 4, 5, 6, 7 or 8, further comprising an unstored alarm device for issuing an alarm when the vehicle is driven in a state in which the display unit is not stored. Display device. A vehicle-mounted road traffic regulation sign display device that can be attached to and detached from a vehicle loading platform, including a multi-stage display unit, a rotating lamp, a telescopic device that can move the display unit and the rotating lamp in multiple stages, and front and rear and a vehicle rush prevention apparatus rotatable, further road traffic regulations for vehicles both equipped with a connector that links the rear tilting during turning linked to tilt after loading platform of the vehicle to the vehicle rush prevention apparatus Sign display device.

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