In-vehicle label device

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By installing a rotatable and adjustable angle marking frame on the top of the vehicle, combined with lighting and light shading devices, the difficulty of field of view blocking and identification caused by marking devices in the prior art is solved, and safer and more efficient construction area guidance is achieved.

JP2025019212APending Publication Date: 2025-02-06OBAYASHI ROAD CORPORATION

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Patent Information

Application Number: JP2024204309
Authority / Receiving Office: JP · JP
Patent Type: Applications
Current Assignee / Owner
Filing Date: 2024-11-22
Publication Date: 2025-02-06

AI Technical Summary

Technical Problem

In the prior art, the installation method of the marking device of non-road maintenance vehicles leads to obstruction of the field of view or is difficult to identify, affecting safety and efficiency.

Method used

A rotatable and adjustable angle-mounted logo frame is designed, combining lighting and light shielding devices to ensure the logo is clearly visible from the front and rear.

Benefits of technology

It improves the visibility and safety of the signs, avoids the problem of visual field blocking, and ensures safe guidance within the construction area.

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Abstract

To provide an in-vehicle label device which can improve the visibility of a label more safely and more effectively and which can be set in the roof part of an automobile other than an automobile for a road maintenance work as an automobile for a special purpose in accordance with Ordinance of Road Trucking Vehicle Act.SOLUTION: An in-vehicle label device 2 set in a roof part 11 of an automobile 1 other than an automobile for a road maintenance work includes: a body frame 23 provided in a roof carrier 3; a label frame rotary fixation member 25 provided in the body frame 23; a label frame 21 rotatably provided in the label frame rotary fixation member 25; a display body 22 provided in the label frame 21, the display body showing that the automobile 1 is at least a construction-related vehicle in the front side and / or in the back side of the vehicle; a label frame supporting member 24 provided on both sides of the label frame 21, the label frame supporting member being capable of changing the state of the label frame 21 between a standing state and a falling state on the roof part 11.SELECTED DRAWING: Figure 3

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Description

[Technical field]

[0001] The present invention relates to an in-vehicle sign device that can be installed on the roof of a vehicle other than a road maintenance work vehicle, which is a special purpose vehicle based on the Enforcement Regulations of the Road Transport Vehicle Law. [Background technology]

[0002] Conventionally, as vehicle signage devices for road maintenance work vehicles, which are special-purpose vehicles based on the Enforcement Regulations of the Road Transport Vehicle Act, for example, Patent Documents 1 and 2 disclose inventions of on-board signage devices that are equipped with yellow and red warning lights and display necessary text information, etc. to general vehicles traveling behind.

[0003] The vehicle equipped with the on-board signage device disclosed in the above patent document is a special-purpose vehicle based on the Enforcement Regulations of the Road Transport Vehicle Law, and more specifically, it is necessary to meet the structural standards as a road maintenance work vehicle. The license plates of special-purpose vehicles, including these road maintenance work vehicles, display the so-called "8 number" as a classification number, and are mainly used by the national government, local governments, highway companies, etc. that manage roads.

[0004] On the other hand, when construction work is carried out by restricting the use of roads that are actually in service, many vehicles other than the above-mentioned road maintenance vehicles carrying construction workers will enter the restricted zone to carry out work and construction management work. In order to enable guides to safely and efficiently distinguish between vehicles carrying construction workers and general traffic vehicles within the restricted zone, sign curtains as shown in Figures 1 and 2 were conventionally attached to the front and rear of the vehicles. Note that these sign curtains are prohibited from being attached in places unrelated to the construction work, and must be removed promptly when outside the construction-related area. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 6585895 [Patent Document 2] Patent No. 4100825 Summary of the Invention [Problem to be solved by the invention]

[0006] For vehicles used by construction workers that are not used exclusively for road maintenance work, sign curtains are attached and detached with strings or adhesive tape. However, as shown in Figure 1(a), if a sign curtain is attached to the outer surface of the rear window with adhesive tape, it blocks the view from the rearview mirror and the rear wiper cannot be used. In addition, there is a risk that the adhesive tape will come off due to wind and rain and / or incorrect operation of the rear wiper, causing the sign curtain to fall onto the road or damage the rear wiper.

[0007] Also, when the sign curtain is attached to the inside of the rear window as in Figure 1(b), there is no risk of the sign curtain falling onto the road, but it blocks the view from the rearview mirror, and if the rear window is tinted, the visibility of the sign curtain is significantly reduced, making it difficult to distinguish it from other vehicles on the road. Also, in the case of a vehicle with a large inclination of the rear window as in Figure 1(c), when the sign curtain is viewed from the horizontal direction, it is inclined greatly and it is difficult to read the displayed content.

[0008] In addition, if the sign curtain is installed in front of the vehicle on the dashboard as shown in Figure 2(a) or attached to the bonnet as shown in Figure 2(b), as can be seen from Figures 2(a) and 2(c), the sign curtain will be difficult for the guide to see, and the guide may not be able to properly guide approaching construction-related vehicles into the restricted zone.

[0009] Therefore, the object of the present invention is to provide an in-vehicle sign device that improves the visibility of signs from the front and / or rear of the vehicle more safely and effectively than conventional devices, and that can be installed on the roof of vehicles other than road maintenance work vehicles, which are special-purpose vehicles based on the Enforcement Regulations of the Road Transport Vehicle Act. [Means for solving the problem]

[0010] The present invention is an on-board sign device to be installed on the roof of a vehicle other than a vehicle used for road maintenance work, and is characterized in having a main body frame attached to a roof carrier, a sign frame rotating and fixing member attached to the main body frame, a sign frame rotatably attached to the sign frame rotating and fixing member, an indicator attached to the sign frame and indicating on the front and / or rear side of the vehicle that the vehicle is at least a construction-related vehicle, and sign frame support members attached to both sides of the sign frame and capable of changing the sign frame between an upright state and a reclined state relative to the roof.

[0011] Furthermore, in one embodiment, the sign frame support member is provided with a side support member having an approximately L-shape, and is characterized in that the side of the sign frame can be engaged in an engagement groove provided in the side support member, thereby fixing the sign frame in an upright or laid-down position.

[0012] Furthermore, in one embodiment, the sign frame support member comprises a first locking protrusion and a second locking protrusion provided on the main frame, and a side support portion having a locking groove that locks with the side of the sign frame and the first locking protrusion and the second locking protrusion, and is characterized in that the side of the sign frame can be locked in the locking groove to fix the sign frame in an upright and laid-down position.

[0013] Furthermore, in one embodiment, the sign frame support member comprises a sliding member provided on the main frame and a side support portion connecting the side of the sign frame and the sliding groove of the sliding member, and is characterized in that the sign frame can be fixed in an upright or laid-down position by sliding the side support portion along the sliding groove.

[0014] Furthermore, in one embodiment, the signage frame support member is equipped with a main body frame clamping member capable of clamping the main body frame at any position, and a side support portion connecting the side of the signage frame to the main body frame clamping member, and is characterized in that by clamping the main body frame clamping member at any position of the main body frame, the signage frame can be fixed in an upright or laid-down position.

[0015] Furthermore, in one embodiment, the main body frame has a sliding groove portion on the side and a slider that slides along the sliding groove portion, and the sign frame support member has a side support portion that connects the side of the sign frame to the slider, and by fixing the slider at any position on the main body frame, the sign frame can be fixed in an upright or laid-down position.

[0016] In one embodiment, the vehicle is characterized by comprising an illumination means for illuminating the display body on the front side and / or the rear side of the vehicle, and a shading means for blocking direct light from the illumination means.

[0017] In one embodiment, a light-emitting warning light is provided adjacent to the display within the sign frame. Effect of the Invention

[0018] According to the configuration of the present invention, it is possible to very easily install an on-board sign device on vehicles other than road maintenance vehicles used by construction workers. Furthermore, it is possible for guides to distinguish between construction vehicles and general traffic vehicles and guide construction vehicles into the restricted zone more safely and efficiently than before. In addition, the sign can be clearly seen by general vehicles traveling behind a vehicle equipped with an on-board sign device, so that accidents involving general vehicles can be prevented. [Brief description of the drawings]

[0019] [Figure 1]This is a photograph explaining the conventional installation of a sign curtain (at the rear of the vehicle) on a vehicle other than a road maintenance work vehicle used by construction workers. [Diagram 2] This is a photograph explaining the conventional installation of a sign curtain (at the front of the vehicle) on a vehicle other than a road maintenance vehicle used by construction workers. [Diagram 3] 1A and 1B are side views for explaining an outline of an in-vehicle sign device of the present invention, in which FIG. 1A is a side view showing a display state and FIG. [Figure 4] 1A and 1B are a front view and a rear view, respectively, illustrating an outline of an on-vehicle sign device according to the present invention. [Diagram 5] 1 is a diagram illustrating an installation mode of a display body provided on a sign frame in an embodiment of the in-vehicle sign device of the present invention; [Figure 6] 1A to 1C are diagrams showing examples of display bodies provided on a sign frame in an embodiment of the in-vehicle sign device of the present invention. [Figure 7] 1 is a side cross-sectional view illustrating an arrangement of a sign frame and a display body in an embodiment of an on-vehicle sign device of the present invention. [Figure 8] 1A is a perspective view showing a non-display state of a first embodiment of an on-vehicle sign device of the present invention, and FIG. 1B is a perspective view showing a display state of the on-vehicle sign device of the first embodiment of the present invention. [Figure 9] FIG. 2C is a side view showing a display state of the first embodiment of the vehicle-mounted sign device of the present invention, and FIG. 2D is a side view showing a non-display state of the vehicle-mounted sign device of the first embodiment. [Figure 10] 13A is a perspective view showing a non-display state of a second embodiment of an on-vehicle sign device of the present invention, and FIG. 13B is a perspective view showing a display state of the on-vehicle sign device of the second embodiment of the present invention. [Figure 11] FIG. 10C is a side view showing a display state of the second embodiment of the vehicle-mounted sign device of the present invention, and FIG. [Figure 12] 13A is a perspective view showing a non-display state of a vehicle-mounted sign device according to a third embodiment of the present invention, and FIG. 13B is a perspective view showing a display state of the vehicle-mounted sign device according to the third embodiment of the present invention. [Figure 13] 13A and 13B are a side view (c) showing a display state and a side view (d) showing a non-display state of the vehicle-mounted sign device according to the third embodiment of the present invention. [Figure 14] 13A is a perspective view showing a non-display state of a fourth embodiment of an on-vehicle sign device of the present invention, and FIG. 13B is a perspective view showing a display state of the on-vehicle sign device of the fourth embodiment of the present invention. [Figure 15] FIG. 13C is a side view showing a display state, and FIG. 13D is a side view showing a non-display state, in a fourth embodiment of the vehicle-mounted sign device of the present invention. [Figure 16] 13A is a perspective view showing a non-display state of a vehicle-mounted sign device according to a fifth embodiment of the present invention, and FIG. 13B is a perspective view showing a display state of the vehicle-mounted sign device according to the fifth embodiment of the present invention. [Figure 17] 13A and 13B are a side view (c) showing a display state and a side view (d) showing a non-display state of the in-vehicle sign device according to the fifth embodiment of the present invention, respectively; [Figure 18] 1A and 1B are a side view and a top view, respectively, illustrating the arrangement of lighting means in one embodiment of an on-vehicle sign device of the present invention. [Figure 19] 1A is a front view of a vehicle, and FIG. 1B is a front view of a sign frame, illustrating an embodiment in which an illumination means is disposed within a sign frame, in an on-vehicle sign device according to the present invention. [Figure 20] 1A is a front view of a sign frame illustrating an embodiment in which an emergency vehicle sign is arranged within a sign frame in one embodiment of an on-vehicle sign device of the present invention, and FIG. 1B is a front view of an emergency vehicle sign. [Figure 21] 1 is a front view showing an example of an auxiliary display object arranged within a sign frame in an embodiment of the in-vehicle sign device of the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the vehicle-mounted signage device of the present invention will be described with reference to the drawings.

[0021] Fig. 3(a) shows a side view of the vehicle-mounted sign device 2 in a display state, and Fig. 3(b) shows a side view in a non-display state. Fig. 4(a) shows a front view of the vehicle-mounted sign device 2 in a display state, and Fig. 4(b) shows a rear view. In addition, Fig. 8(a) shows a perspective view showing the non-display state in the first embodiment of the present invention, and Fig. 8(b) shows a perspective view showing the display state.

[0022] As shown in the above figures, the vehicle-mounted sign device 2 of the present invention is an vehicle-mounted sign device 2 to be installed on the roof portion 11 of a vehicle 1 other than a road maintenance work vehicle, and is characterized in having at least a main body frame 23 provided on the roof carrier 3, a sign frame rotating and fixing member 25 provided on the main body frame 23, a sign frame 21 rotatably provided on the sign frame rotating and fixing member 25, an indicator 22 provided on the sign frame 21 and indicating on the front and / or rear side of the vehicle that the vehicle 1 is at least a construction-related vehicle, and sign frame support members 24 provided on both sides of the sign frame 21 and capable of changing the sign frame 21 between an upright state and a reclined state relative to the roof portion 11.

[0023] That is, as shown in Figure 3, a sign frame 21 equipped with a display 22 indicating that the vehicle is a construction-related vehicle is installed in a collapsible state, and the sign frame 21 can be changed between an upright and a collapsed state, so that the display content of the display 22 can be clearly shown to guides and the like as necessary.

[0024] Also, as shown in FIG. 4, a display 22 indicating that the automobile 1 is at least a construction-related vehicle is provided at the front and / or rear of the vehicle. For example, as also shown in FIG. 7, it is possible to place a front display 221 indicating that the automobile 1 is a "construction vehicle" at the front of the vehicle, and a rear display 222 indicating, for example, "slow down when hazard lights are on" to alert general traffic vehicles at the rear of the vehicle.

[0025] 5 shows a front view of the sign frame 21 in this embodiment and the display bodies 22 of different sizes attached to the sign frame 21. That is, as shown in each of the views in Fig. 6, the display bodies 22 have various sizes depending on the construction site and the business operator in charge of the construction, and the sign frame 21 in this embodiment can easily attach display bodies corresponding to various sizes of the display bodies 22.

[0026] The material of the sign frame 21 is not particularly limited, and various materials such as metal can be used as long as the structure can withstand a certain wind speed during driving.

[0027] In this embodiment, the sign banner printed on a vinyl sheet is used as the display body 22, and the display body 22 is attached to the sign frame 21 with a string, vinyl tape, or the like. However, the present invention is not limited to this form, and the display body 22 may be an iron plate, an aluminum plate, a resin plate, a fiber sheet, or the like on which the display content is displayed.

[0028] Furthermore, the automobile 1 on which the vehicle-mounted signage device 2 of the present invention is installed can also be installed in ordinary automobiles, compact automobiles, light automobiles, etc., and in such cases, the automobile can be driven on public roads by complying with the ground clearance and vehicle width as shown in Figure 4(a).

[0029] Next, each embodiment of the above-mentioned sign frame support member 24 of the present invention will be described below.

[0030] (First embodiment) FIG. 8(a) shows an oblique view of the first embodiment of the vehicle-mounted sign device 2 in a non-display state, FIG. 8(b) shows an oblique view of the display state, FIG. 9(c) shows a side view of the vehicle-mounted sign device 2 in a display state, and FIG. 9(d) shows a side view of the vehicle-mounted sign device 2 in a non-display state.

[0031] As shown in the figure, in the first embodiment, the sign frame support member 24 is provided with a side support member 241 having an approximately L-shape, and is characterized in that the side of the sign frame 21 can be engaged in an engagement groove provided in the side support member 241 to fix the sign frame 21 in an upright or laid-down position.

[0032] To explain in more detail, in this embodiment, the side support member 241, which is provided on the main frame 23 and rotatably attaches the sign frame 21, and the sign frame pivoting and fixing member 25 are integrally formed, and by engaging the middle side portion of the sign frame 21 with an engaging groove provided in the side support member 241 with a thumbscrew or the like, it is possible to switch between a displayed state and a non-displayed state.

[0033] Second embodiment Figure 10(a) shows an oblique view of the second embodiment of the vehicle-mounted sign device 2 in a non-display state, Figure 10(b) shows an oblique view of the display state, Figure 11(c) shows a side view of the vehicle-mounted sign device 2 in a display state, and Figure 11(d) shows a side view of the vehicle-mounted sign device 2 in a non-display state.

[0034] As shown in the figure, in the second embodiment, the sign frame support member 24 comprises a first locking protrusion 242 and a second locking protrusion 243 provided on the main frame 23, and a side support portion 241 having locking grooves that lock with the side portion of the sign frame 21 and the first locking protrusion 242 and the second locking protrusion 243, and is characterized in that the side portion of the sign frame 21 can be locked in the locking groove to fix the sign frame 21 in an upright or laid-down position.

[0035] Furthermore, in this embodiment, the sign frame 21 is rotatably attached to the sign frame rotating and fixing member 25 provided on the main frame 23 with a hinge 254, and the side of the sign frame 21 and the first and second locking protrusions 242 and 243 are locked in the locking grooves provided in the side support member 241 with thumb screws or the like, making it possible to switch between a displayed state and a hidden state.

[0036] 10(a) and 10(b), a connecting member 246 may be provided to connect the left and right side support parts 241. By providing the connecting member 246 in this manner, the left and right side support parts 241 are linked, so that the display / non-display switching operation can be easily performed by one person.

[0037] Third embodiment FIG. 12(a) shows an oblique view of the third embodiment of the vehicle-mounted signage device 2 in a non-display state, FIG. 12(b) shows an oblique view of the display state, FIG. 13(c) shows a side view of the vehicle-mounted signage device 2 in a display state, and FIG. 13(d) shows a side view of the vehicle-mounted signage device 2 in a non-display state.

[0038] As shown in the figure, in the third embodiment, the sign frame support member 24 comprises a sliding member 244 provided on the main frame 23, and a side support portion 241 that connects the side of the sign frame 21 with the sliding groove of the sliding member 244, and is characterized in that the sign frame 21 can be fixed in an upright or laid-down position by sliding the side support portion 241 in the sliding groove.

[0039] 13, in this embodiment, the sign frame 21 is rotatably attached to the sign frame rotating and fixing member 25 provided on the main body frame 23 by a hinge 254. A slider (not shown) provided on one end of the side support part 241 slides in a sliding groove formed in the sliding member 244, thereby enabling the sign frame 21 to rotate, and the sign frame 21 can be fixed in an upright or tilted position by a thumbscrew or the like.

[0040] 12(a) and (b), a connecting member 246 may be provided to connect the left and right side support parts 241. In this case, by using a single connecting member 246 with thread grooves formed on both ends, both left and right ends can be configured to slide in the sliding grooves described above and fixed at fixed positions with thumb screws or the like. By providing the connecting member 246 in this way, the left and right side support parts 241 are linked, making it possible for one person to easily perform the display / non-display switching operation.

[0041] (Fourth embodiment) FIG. 14(a) shows an oblique view of the fourth embodiment of the vehicle-mounted sign device 2 in a non-display state, FIG. 14(b) shows an oblique view of the display state, FIG. 15(c) shows a side view of the vehicle-mounted sign device 2 in a display state, and FIG. 15(d) shows a side view of the vehicle-mounted sign device 2 in a non-display state.

[0042] As shown in the figure, in the fourth embodiment, the sign frame support member 24 comprises a main body frame clamping member 245 capable of clamping the main body frame 23 at any position, and a side support portion 241 that connects the side of the sign frame 21 to the main body frame clamping member 245. By clamping the main body frame clamping member 245 at any position of the main body frame 23, the sign frame 21 can be fixed in an upright or laid-down position.

[0043] That is, in this embodiment, as shown in Fig. 15(c), the sign frame 21 is rotatably attached to the sign frame rotating and fixing member 25 provided on the main body frame 23 by a hinge 254. As shown in the particularly enlarged view of Fig. 15(c), the main body frame clamping member 245 connected to one end of the side support part 241 clamps an arbitrary position of the main body frame 23, thereby making it possible to switch between a display state and a non-display state of the display body 22.

[0044] 14(a) and 14(b), a connecting member 246 may be provided to connect the left and right side support parts 241. By providing the connecting member 246 in this manner, the left and right side support parts 241 are linked, so that the display / non-display switching operation can be easily performed by one person.

[0045] Fifth embodiment Figure 16(a) shows an oblique view of the fifth embodiment of the vehicle-mounted sign device 2 in a non-display state, Figure 16(b) shows an oblique view of the display state, Figure 17(c) shows a side view of the vehicle-mounted sign device 2 in a display state, and Figure 17(d) shows a side view of the vehicle-mounted sign device 2 in a non-display state.

[0046] As shown in the figure, in the fifth embodiment, the main body frame 23 has a sliding groove portion 231 on the side and a slider 232 that slides in the sliding groove portion 231, and the sign frame support member 24 has a side support portion 241 that connects the side of the sign frame 21 and the slider 232. By fixing the slider 232 at any position on the main body frame 23, it is possible to fix the sign frame 21 in an upright position and a laid-down position.

[0047] That is, in this embodiment, as shown in Fig. 17(c), the sign frame 21 is rotatably attached by a hinge 254 to the sign frame rotating and fixing member 25 provided on the main body frame 23. As shown in the particularly enlarged view of Fig. 17(c), the main body frame 23 of this embodiment utilizes a member having an opening formed on one side thereof, which is made of so-called C-shaped steel or the like, and the opening is made into a sliding groove portion 231, which allows the slider 232 to slide. The slider is fixed at any position with a thumbscrew or the like, so that the display body 22 can be switched between a display state and a non-display state.

[0048] 16(a) and 16(b), a connecting member 246 may be provided to connect the left and right side support parts 241. By providing the connecting member 246 in this manner, the left and right side support parts 241 are linked, so that the display / non-display switching operation can be easily performed by one person.

[0049] (Other embodiments) Although the first to fifth embodiments of the present invention have been described above, the vehicle-mounted sign device of the present invention is not limited to the above-described embodiments.

[0050] For example, Fig. 18(a) shows a side view illustrating the arrangement of the lighting means, and Fig. 18(b) shows a top view thereof. That is, it is also possible to provide a rear lighting means 251A that illuminates at least the rear display body 222 on the rear side of the vehicle, and a light shielding means 252 that blocks direct light from the rear lighting means 251A to the rear.

[0051] More specifically, if the display bodies 22 including the rear display body 222 are made of a non-reflective sheet or the like, it is difficult to read the display contents in a dark environment such as in the evening or at night or inside a tunnel. Therefore, in the illustrated embodiment, a front lighting means 251B for illuminating the front display body 221 and a rear lighting means 251A for illuminating the rear display body 222 are arranged, and the visibility of these display bodies 22 is significantly improved, especially in the evening or at night or inside a tunnel. In this embodiment, LEDs with excellent versatility are adopted as the rear lighting means 251A and the front lighting means 251B, and more preferably, LED line tape with excellent waterproof properties can be suitably used.

[0052] In addition, by providing a shading means 252 that blocks direct light to the rear from the rear lighting means 251A, the visibility of the rear display body 222 can be further improved, and by providing a shading means 252 to the rear lighting means 251A that illuminates the rear display body 222, it is possible to comply with the safety standards for road transport vehicles, which limit rear lighting.

[0053] Furthermore, in the vehicle-mounted signage device 2 of the present invention, as shown in Figures 18(b) and 4, a space for installing a removable warning light 256 may be provided next to the sign frame 21, thereby making it possible for guides and others to more reliably recognize that the vehicle is a construction-related vehicle.

[0054] As another embodiment, as shown in Fig. 19(a) and (b), a warning light 253 can be provided adjacent to the display body 22 within the sign frame 21. Specifically, the warning light 253 can be provided with a built-in light source such as an LED, fluorescent lamp, or light bulb, and covered with a translucent resin plate or the like. The type of light source and the type of exterior material can be any known type, and are not particularly limited. Note that, in accordance with the safety standards for road transport vehicles, it is desirable to have a luminous intensity of 300 candela or less.

[0055] By providing a warning lamp 253 incorporating such a light source inside the sign frame 21, it is possible to eliminate the need to separately prepare and attach a detachable warning lamp 256 as shown in FIG. 4 or FIG. 18(b).

[0056] As another embodiment, as shown in Fig. 20(a), an emergency vehicle confirmation mark 255 can be provided adjacent to the display body 22 within the sign frame 21. As shown in Fig. 20(b), the emergency vehicle confirmation mark 255 is a mark that emergency vehicles are required to display based on the Disaster Countermeasures Basic Act, and is particularly required for vehicles involved in road construction that require emergency measures. Therefore, by configuring the emergency vehicle confirmation mark 255 to be able to be installed within the sign frame 21 as shown in the figure, visibility is increased, enabling smooth operation during disasters and the like.

[0057] As yet another embodiment, as shown in Fig. 21, an auxiliary display 257 indicating the affiliation of the construction vehicle, etc., can be arranged adjacent to the display body 22 within the sign frame 21, similar to the emergency vehicle confirmation mark 255 shown in Fig. 20(a). Conventionally, the auxiliary display 257 shown in Fig. 21 was placed on the dashboard inside the vehicle, but visibility from the front is very poor as shown in Fig. 2(a). Therefore, by arranging it within the sign frame 21 as described above, visibility is significantly improved.

[0058] In the above embodiment, an example was illustrated in which the display 22 displayed "construction vehicle" or the like, but the use of the vehicle-mounted sign device of the present invention is not necessarily limited to construction vehicles. For example, the vehicle-mounted sign device of the present invention can be used in public relations vehicles, advertising vehicles, and mobile sales vehicles used at various events, as well as in leading (guiding) vehicles and security (warning and surveillance) vehicles.

[0059] Although the embodiments of the present invention have been described above based on the drawings, the specific configuration is not limited to these embodiments. The scope of the present invention is indicated by the claims, not by the description of the above embodiments, and further includes all modifications within the meaning and scope of the claims. In addition, the specific materials, dimensions, shapes, etc. described in the above examples can be modified within the scope of the present invention. [Explanation of symbols]

[0060] 1. Automobiles 11 Roof section 2 Vehicle-mounted marking device 21 Sign Frame 22 Display body 221 Front display body 222 Rear display 23 Main frame 231 Sliding groove 232 Slider 24 Sign frame support member 241 Side support member 242 First locking protrusion 243 Second locking protrusion 244 Sliding members 245 Main body frame clamping member 246 Connecting members 25 Sign frame rotating and fixing member 251A Rear lighting means 251B Forward illumination means 252 Shading means 253 Warning light 254 Hinge 255 Emergency vehicle identification mark 256 Removable warning light 257 Auxiliary Display 3 Roof carrier

Claims

1. An in-vehicle sign device to be installed on the roof of a vehicle other than a road maintenance vehicle, A main body frame provided on the roof carrier; A sign frame rotation fixing member provided on the main body frame; A sign frame rotatably provided on the sign frame rotating and fixing member; A display body provided on the sign frame and indicating that the automobile is at least a construction-related vehicle on the front side and / or rear side of the vehicle; and a sign frame support member provided on each side of the sign frame and capable of changing the sign frame between an upright state and a downright state with respect to the roof portion. An in-vehicle signage device comprising:

2. The sign frame support member is A side support member having a substantially L-shape is provided, The side portions of the sign frame can be locked in the locking grooves provided in the side support members to fix the sign frame in an upright or down position.