JP6839964B2 - In-vehicle sign device - Google Patents

Description

The present invention relates to an in-vehicle marking device, which is a marking device mounted on a vehicle. In particular, the present invention relates to an in-vehicle marking device in which the air resistance received by the in-vehicle marking device is reduced when a vehicle equipped with the in-vehicle marking device is traveling.

As the in-vehicle signing device, for example, a signing device mounted on the loading platform of a truck for road construction, a signing device mounted on the roof of a vehicle such as a wagon car, and the like are known. As the in-vehicle marking device mounted on this vehicle, a fixed type and an undulating type are known.

In such an in-vehicle sign device, it is known that if the sign is left upright while the vehicle is running, the sign may be damaged by the wind pressure due to the running, and a proposal has been made in consideration of this point. (Patent Document 1).

Japanese Unexamined Patent Publication No. 10-29465

Provided is an in-vehicle sign device mounted on a vehicle, wherein the air resistance is reduced when the vehicle is running.

[1]
An in-vehicle signing device mounted on a vehicle
Light emitting display units extending in the horizontal direction, which is a direction orthogonal to the direction in which the vehicle travels, are located between each other in the direction in which the vehicle travels and in the vertical direction orthogonal to the horizontal direction in which the light emitting display unit extends. Multiple units are deployed with a gap at a predetermined interval.
The light emitting display unit is arranged at a predetermined distance between each other in the horizontal direction orthogonal to the traveling direction of the vehicle, and emits light toward the rear in the traveling direction of the vehicle. In-vehicle marking device equipped with a part.

[2]
The in-vehicle marking device according to [1], wherein the gap between adjacent light emitting display units serves as a ventilation unit.

[3]
The light emitting display unit extends from an end portion on the front side in the traveling direction of the vehicle in an inclined manner toward the front side in the traveling direction of the vehicle and toward the side of the adjacent light emitting display unit on the lower side in the vertical direction. The in-vehicle marking device of [1] or [2] provided with a light-shielding plate portion.

[4]
The in-vehicle signing device according to [3], wherein the light-shielding plate portion has a front edge that bends at a bent portion on the front side in the traveling direction of the vehicle and extends toward the front in the traveling direction of the vehicle.

[5]
The light emitting unit is an in-vehicle marking device according to any one of [1] to [4], which is an LED display unit.

According to the present invention, it is possible to provide an in-vehicle sign device mounted on a vehicle, which is designed to reduce air resistance when the vehicle is traveling.

FIG. 5 is a side view illustrating an example of a vehicle equipped with an in-vehicle sign device according to an embodiment of the present invention. A front view for explaining a schematic configuration of an in-vehicle sign device according to an embodiment of the present invention (a view seen from the rear side in the traveling direction of the vehicle toward the front side in the traveling direction). It is a figure which omits a part explaining an example of the arrangement form of the light emitting display part in the vehicle-mounted sign device which concerns on one Embodiment of this invention, and goes from the rear side in the traveling direction of a vehicle toward the front side in a traveling direction. The figure which omits a part seen in the above. A front view explaining a state in which a sign is displayed by emitting light from a light emitting unit in an in-vehicle sign device according to an embodiment of the present invention (viewed from the rear side in the traveling direction of the vehicle toward the front side in the traveling direction). Figure). It is a reference photograph explaining the implementation state of the wind tunnel experiment in which the air resistance was examined by artificially generating wind, and (a) is an in-vehicle marking device according to an embodiment of the present invention used in the experiment. A reference photograph showing, (b) is a reference photograph showing a conventional in-vehicle sign device as compared with the in-vehicle sign device according to the embodiment of the present invention. (A) and (b) are graphs explaining the results of a wind tunnel experiment in which air resistance was examined by artificially generating wind. It is a reference photograph which visualized the flow of smoke which flows from the front of the vehicle traveling direction to the rear side of the vehicle traveling direction with respect to an in-vehicle sign device, and (a) is an embodiment of the present invention. (B) is a reference photograph when examined with the in-vehicle sign device according to the above, and (b) is a reference photograph when examined with a conventional in-vehicle sign device compared with the in-vehicle sign device according to one embodiment of the present invention. In the vehicle-mounted sign device according to the embodiment of the present invention, in the figure, when viewed from the horizontal direction orthogonal to the traveling direction of the vehicle from the left side to the right side, the light emitting display units are vertically adjacent to each other. The conceptual diagram explaining the state which is deployed through a gap part. (A), (b), and (c) are views in which a part of explaining an example of the structure of the front end portion of the light emitting display unit in the vehicle traveling direction in the vehicle-mounted sign device according to the embodiment of the present invention is omitted. .. (A) is a conceptual diagram for explaining the air flow from the front in the traveling direction of the vehicle to the rear in the traveling direction of the vehicle in the structure shown in FIG. 9A, and FIG. 9B is the traveling of the vehicle in the structure shown in FIG. 9C. Direction A conceptual diagram illustrating an air flow from the front to the rear in the direction of travel of the vehicle.

An embodiment of the present invention will be described with reference to the accompanying drawings.

The vehicle-mounted sign device 2 of this embodiment is mounted on the vehicle 1 and used.

In the illustrated embodiment, the vehicle-mounted sign device 2 is composed of four circumferences of the frame bodies 7a, 7b, 8a, and 8b, and the lower frame body 8b is mounted on the roof of the vehicle 1 or the like for use. Such a configuration is basically the same as that of a conventionally known in-vehicle marking device.

The in-vehicle sign device 2 includes light emitting display units 3a, 3b, 3c, 3d, ..., Which extend in a direction orthogonal to the direction in which the vehicle 1 travels. Hereinafter, in the present specification and drawings, the light emitting display unit 3a, etc. may be collectively referred to as “light emitting display unit 3”.

In FIG. 1, the right side is the front in the traveling direction of the vehicle 1, and the left side is the rear in the traveling direction of the vehicle 1.

The light emitting display unit 3 extends in the horizontal direction (horizontal direction in FIG. 2), which is a direction orthogonal to the direction in which the vehicle 1 travels.

The light emitting display unit 3 provides gaps 4a, 4b, 4c, 4d, ... At predetermined intervals between each other in the direction in which the vehicle 1 travels and in the direction orthogonal to the direction in which the light emitting display unit 3 extends. Multiple are deployed in a vacant space. Hereinafter, in the present specification and drawings, the gap portion 4a, etc. may be generically referred to as “void portion 4”.

1 and 2 In the illustrated embodiment, the vehicle 1 travels from the left side to the right side of FIG. 1, and the light emitting display unit 3 travels in the horizontal direction (in FIG. 2), which is a direction orthogonal to the traveling direction of the vehicle 1. It extends in the left-right direction) (Fig. 2). Therefore, as shown in FIG. 2, the light emitting display unit 3 is adjacent to each other in the direction in which the vehicle 1 travels and in the vertical direction (vertical direction in FIG. 2) which is a direction orthogonal to the direction in which the light emitting display unit 3 extends. A plurality of light emitting display units 3 are provided with gaps 4 at predetermined intervals between the light emitting display units 3.

The light emitting display units 3a, 3b, 3c, 3d, ... Are directions orthogonal to the direction in which the vehicle 1 extending the light emitting display unit 3 travels (left-right direction in FIG. 2), and are spaced apart from each other at predetermined intervals. It is provided with a plurality of light emitting units 6a, 6b, 6c, ... That emit light toward the rear in the traveling direction of the vehicle 1 (FIG. 3). Hereinafter, in the present specification and drawings, the light emitting unit 6a, etc. may be collectively referred to as “light emitting unit 6”.

Since each of the plurality of light emitting display units 3 includes the plurality of light emitting units 6, the light emitting state of the plurality of light emitting units 6 is controlled by a conventionally known means, and as shown in FIG. It is possible to display a light emission of a character sign such as "Under construction".

Therefore, a person who is driving a vehicle that is equipped with the in-vehicle sign device 2 and is following from behind the vehicle 1 that is traveling forward is placed on the roof of the vehicle 1 that is traveling in front. It is possible to visually recognize a light emitting display such as "under construction" displayed by the on-board sign device 2.

As the light emitting unit 6, various light emitting means conventionally used for the light emitting unit in the labeling unit of the vehicle-mounted sign device can be adopted. For example, it can be an LED display unit made of an LED substrate or the like.

The distance between the adjacent light emitting unit 6a and the light emitting unit 6b, and the distance between the adjacent light emitting unit 6b and the light emitting unit 6c, which is partially shown in FIG. The interval can be set in consideration of making the sign characters such as "under construction" visible.

As described above, there are gaps 4 at predetermined intervals between the light emitting display units 3 adjacent to each other in the vertical direction (vertical direction in FIG. 2). As shown in FIG. 4, the light emission by 6 causes a light emission display so that a sign character such as "under construction" can be visually recognized, and the vehicle 1 equipped with the in-vehicle sign device 2 as shown in FIG. 1 When traveling, the plurality of gaps 4 serve as ventilation parts, respectively, so that the air resistance can be sufficiently reduced as compared with the case where the gaps 4 do not exist, and the in-vehicle marking device 2 is mounted. The interval can be set in consideration of the fact that the wind noise generated by the air passing through the gap 4 when the vehicle 1 travels does not become unpleasant.

For example, the width of the light emitting display unit 3 in the vertical direction (vertical direction of FIG. 2) is 8 mm to 10 mm (for example, 9 mm), and the width of the gap portion 4 in the vertical direction (vertical direction of FIG. 2) is 10 mm to 12 mm (for example). , 11 mm).

In the illustrated embodiment, the light emitting display unit 3 is supported by the frames 5a and 5b in which the upper end and the lower end are fixed in the upper frame 8a and the lower frame 8b, respectively (FIGS. 2 and 3). The left and right ends of the light emitting display unit 3 in FIGS. 2 and 3 are supported by a support frame (not shown) in the left frame 7a and a support frame (not shown) in the right frame 7b, respectively. To.

As shown in FIGS. 8 and 9 (a), the light emitting display unit 3 used in the vehicle-mounted sign device 2 of this embodiment has a wide opening on the rear side in the traveling direction of the vehicle 1. It has a semi-spindle shape that gradually narrows toward the front in the traveling direction of the vehicle 1.

The frame 5c in which the upper end and the lower end of the light emitting display unit 3 on the front side in the traveling direction of the vehicle 1 are fixed in the upper frame 8a and the lower frame 8b, respectively. (Fig. 9 (a)).

The width of the light emitting display unit 3 in the vertical direction (vertical direction in FIG. 2) is the width in the vertical direction (vertical direction in FIG. 2) of the wide opening on the rearward side in the traveling direction of the vehicle 1.

Further, the width of the gap portion 4 described above in the vertical direction (vertical direction in FIGS. 2 and 9 (a)) is adjacent in the vertical direction (vertical direction in FIGS. 2 and 9 (a)), and the vehicle 1 travels. The distance between the wide opening on the rearward side of the direction.

According to the vehicle-mounted sign device 2 of this embodiment, the vehicle 1 extends in a direction orthogonal to the traveling direction (left-right direction in FIG. 2), and is arranged in this direction with a predetermined distance between them. Light emitting display units 3 including a plurality of light emitting units 6 are predetermined between each other in a direction orthogonal to the direction in which the vehicle 1 travels and the direction in which the light emitting display unit 3 extends (vertical direction in FIG. 2). Since a plurality of gaps 4 are arranged at intervals of the above, for example, the vehicle 1 travels forward in FIG. 1 with the character sign "under construction" being emitted and displayed as shown in FIG. However, since the plurality of gaps 4 serve as ventilation portions, the air resistance can be effectively reduced (FIG. 10A). In FIG. 10A, it passes as shown by an arrow 20.

Further, as described above, as shown in FIG. 9A, the light emitting display unit 3 has a wide opening on the rear side in the traveling direction of the vehicle 1 and faces the front in the traveling direction of the vehicle 1. Since it has a semi-spindle shape that gradually narrows in width, air resistance can be reduced more effectively.

FIG. 7 is a reference photograph showing the result of a study in which the flow of smoke flowing from the front in the traveling direction of the vehicle 1 to the rear side in the traveling direction of the vehicle 1 is visualized with respect to the vehicle-mounted sign device 2 of this embodiment. FIG. 7A is a reference photograph when the vehicle-mounted sign device 2 according to this embodiment is examined. FIG. 7B is a reference photograph when examined with a conventional vehicle-mounted sign device compared to the vehicle-mounted sign device 2 according to this embodiment.

In the study shown in FIG. 7B, the front side of the vehicle 1 in the traveling direction is closed with a flat plate for comparison with the vehicle-mounted sign device 2 of this embodiment. In the case of this conventional vehicle-mounted sign device, the flow of smoke from the front side in the vehicle traveling direction to the rear side in the vehicle traveling direction with respect to the vehicle-mounted sign device rises toward the apex side of the vehicle-mounted sign device 2. Smoke flowed from the apex of the vehicle-mounted sign device 2 toward the rear in the vehicle-mounted traveling direction (FIG. 7 (b)).

On the other hand, in the case of the vehicle-mounted sign device 2 of this embodiment, the flow of smoke from the front side in the vehicle traveling direction to the rear side in the vehicle traveling direction passes through the gap 4 and the vehicle-mounted sign device 2 with respect to the vehicle-mounted sign device 2. It was confirmed that the device 2 was heading toward the rear side in the vehicle traveling direction (FIG. 7 (a)).

Next, a wind tunnel experiment was conducted to examine the air resistance by artificially generating wind. FIG. 5 (a) is a reference photograph showing an in-vehicle sign device 2 according to an embodiment of the present invention used in this experiment, and FIG. 5 (b) is for comparison with the in-vehicle sign device 2 of this embodiment. This is a reference photograph showing a conventional in-vehicle signing device used for this experiment, in which the front side in the traveling direction of the vehicle is covered with a flat plate.

A wind of about 5 to 30 m / sec was applied to each experimental object from the front side in the vehicle traveling direction toward the rear side in the vehicle traveling direction, and the air resistance applied to each experimental object was measured.

6 (a) and 6 (b) are graphs showing the results of this experiment. It was confirmed that the air resistance received by the in-vehicle marking device 2 according to the embodiment of the present invention is smaller than that received by the conventional type, and the difference increases as the wind speed increases.

Table 1 below shows the magnitude of air resistance applied to the in-vehicle marking device when traveling at a speed of 50 to 100 km / h, which is derived from the above-mentioned wind tunnel experiment results. In Table 1 below, the vehicle-mounted sign device 2 of this embodiment is displayed as an "improved type".

The air resistance (174.8N) applied to the vehicle-mounted sign device 2 of this embodiment when traveling at 100 km / h is 47.2N less than that of the conventional type (222.0N), and is 20% by adopting the structure of this embodiment. As mentioned above, it was found that the effect of reducing air resistance can be expected.

In addition, it was considered that the effect would be greater at high speeds (higher wind speed).

For reference, Table 1 below shows the estimated fuel consumption calculated on the desk. By adopting the vehicle-mounted sign device 2 of this embodiment, it is possible to expect an improvement in fuel efficiency of 0.54 km / liter as compared with a conventional vehicle-mounted sign device in which the front side is closed with a flat plate.

9 (b), (c), and 10 (b) will be used to describe another embodiment of the structure of the light emitting display unit 3 at the front end of the vehicle 1 in the traveling direction.

In the illustrated embodiment of FIG. 9B, the light emitting display unit 3a is adjacent to the light emitting display unit 3a on the lower side in the vertical direction while facing the front side in the traveling direction of the vehicle 1 from the end portion 13a on the front side in the traveling direction of the vehicle 1. It is provided with a light-shielding plate portion 14a that extends incline toward the light emitting display portion 3b.

Normally, a person who is driving a vehicle that is equipped with an in-vehicle sign device 2 and is following from behind a vehicle 1 that is traveling forward is on the roof of the vehicle 1 that is traveling in front. A light emitting display such as "under construction" displayed by the on-board sign device 2 is visually recognized with the line of sight directed diagonally forward and upward.

Therefore, for example, in the case of the embodiment shown in FIG. 9A, when light is inserted from the front to the rear in the traveling direction of the vehicle 1 as shown by the arrow 15, the light is inserted through the gap 4. The light emitted may make it difficult to see the light emission display such as "under construction" displayed by the vehicle-mounted sign device 2.

For example, an in-vehicle signing device at an angle such that a person driving a vehicle that is equipped with the in-vehicle signing device 2 and is following the vehicle 1 traveling forward looks up from slightly below to the upper side. This is a case where the bright sky can be seen through the gap 4 while looking at 2.

In the illustrated embodiment of FIG. 9B, the light emitting display units 3a, 3b, and 3c are directed toward the front in the traveling direction of the vehicle 1 from the front ends 13a, 13b, and 13c in the traveling direction of the vehicle 1. A light-shielding plate portion 14a, 14b, 14c extending vertically toward the adjacent light emitting display units 3b, 3c, and 3d on the lower side is provided. Hereinafter, in the present specification and drawings, the light-shielding plate portions 14a, 14b, 14c, etc. may be collectively referred to as "light-shielding plate portion 14".

Therefore, even if the light is inserted as shown by the arrow 15 in FIG. 9A, this is blocked by the light-shielding plate portion 14, and the light-emitting display such as “under construction” displayed by the in-vehicle sign device 2 Is not obscured.

The light-shielding plate portion 14 prevents light from entering through the gap portion 4 from the upper side in the front of the vehicle 1 traveling direction to the lower side in the rear of the vehicle traveling direction, and as described above, a plurality of gap portions. In order to exert the effect that the air resistance can be effectively reduced because 4 serves as a ventilation portion, the positions of the front edge 16a, 16b, 16c of the light shielding plate portion 14 are shown in FIG. 9 (b). ) As shown in the figure, it is desirable that the position stays in the gap 4 between the adjacent light emitting display units 3a and 3b. Hereinafter, in the present specification and drawings, the front edge 16a, 16b, 16c, etc. of the light-shielding plate portion 14 may be collectively referred to as "edge 16".

FIG. 9C illustrates yet another embodiment. 9 (c) In the illustrated embodiment, the light-shielding plate portions 14a, 14b, 14c are bent at the bent portions 17a, 17b, 17c on the front side in the traveling direction of the vehicle 1 toward the front in the traveling direction of the vehicle 1. It has an extending front edge 16a, 16b, 16c. Hereinafter, in the present specification and drawings, the bent portions 17a, 17b, 17c, etc. may be collectively referred to as "bent portion 17".

9 (c) In the illustrated embodiment, the front edges 16a, 16b, 16c of the light-shielding plate portion 14 are bent at the bent portions 17a, 17b, 17c on the front side of the light-shielding plate portion 14, and are bent in the horizontal direction. It extends from the bent portions 17a, 17b, and 17c toward the front in the traveling direction of the vehicle 1 in parallel with the extending light emitting display portion 3.

FIG. 9 (FIG. 9), because the light-shielding plate portion 14 is provided with a front edge 16 that is bent at a bent portion 17 on the front side in the traveling direction of the vehicle 1 and extends horizontally toward the front in the traveling direction of the vehicle 1. The embodiment of c) is advantageous because the phenomenon that the front edge 16 of the light-shielding plate portion 14 vibrates due to wind pressure can be suppressed as compared with the embodiment shown in FIG. 9 (b).

In the illustrated embodiment of FIG. 9 (c), as shown in FIG. 10 (b), the air flow indicated by the arrow 21 passes through the gap 4 as shown by the arrow 22.

Although the preferred embodiment of the present invention has been described above with reference to the accompanying drawings, the present invention is not limited to such an embodiment, and various changes are made in the technical scope grasped from the description of the claims. It is possible.

2 In-vehicle marking device 7a, 7b, 8a, 8b Frame 1 Vehicle 3, 3a, 3b, 3c, 3d, ... Light emitting display unit 6, 6a, 6b, 6c, ... Light emitting unit 4, 4a, 4b 4, 4c, 4d, ... Void portions 14a, 14b, 14c ... Shading plate portion

Claims (4)

An in-vehicle signing device mounted on a vehicle
Light emitting display units extending in the horizontal direction, which is a direction orthogonal to the direction in which the vehicle travels, are located between each other in the direction in which the vehicle travels and in the vertical direction orthogonal to the horizontal direction in which the light emitting display unit extends. Multiple units are deployed with a gap at a predetermined interval.
The light emitting display unit is
Wherein the vehicle is being deployed at a predetermined interval between each other in the horizontal direction perpendicular to the traveling direction, together with and a plurality of light emitting unit that emits light toward the rear in the traveling direction of the vehicle ,
A light-shielding plate portion extending from the front end portion in the traveling direction of the vehicle toward the front in the traveling direction of the vehicle and inclining toward the side of the adjacent light emitting display portion on the lower side in the vertical direction is provided. In- vehicle marking device. The vehicle-mounted sign device according to claim 1, wherein the gap between adjacent light emitting display units serves as a ventilation unit. The vehicle-mounted sign device according to claim 1 or 2, wherein the light-shielding plate portion has an edge on the front side that bends at a bent portion on the front side in the traveling direction of the vehicle and extends toward the front in the traveling direction of the vehicle. .. The vehicle-mounted sign device according to any one of claims 1 to 3, wherein the light emitting unit is an LED display unit.