JP3224130U - Sign structure - Google Patents

Abstract

Provided is a sign structure that is installed on a road surface and allows a sign to be visually recognized only from a specific direction. A sign structure includes a frame member that forms a rectangular frame at a constant height, a strip-shaped main member that is arranged in parallel at regular intervals within the frame of the rectangular frame, and a main member. And an inclined member 12 having an inclined surface that is inclined with respect to the ground surface. The inclined member 12 has a fixed sign elevation angle θ with respect to the ground surface, and is fixed to the upper end 11a of the main member 11 at the upper end 12a. On the inclined surface 12b visible from above, divided signs Hb obtained by dividing the sign to be indicated by the sign structure 1 are displayed. [Selection] Figure 1

Description

The present invention relates to a sign structure that is embedded in a road surface and displays a sign.

Conventionally, as a traffic sign, a plate-shaped sign fixed on a side of a road by a pole or the like (stand-alone sign) has been widely used (for example, Patent Document 1). Traffic signs (road signs) that are directly displayed on the road surface, such as route guidance and pedestrian crossings, are also widely used.

Japanese Utility Model Publication No. 5-16814

In recent years, there have been many accidents caused by not recognizing signs such as reverse driving on highways and entering restricted traffic areas. Conventionally, as a traffic road sign, a self-supporting sign in which a plate-like signboard on which a sign is displayed is fixed to a side of the road with a pole or the like is often used. However, in general, a self-supporting sign is small and difficult to visually recognize. For example, in the example shown in FIG. 5, the sign is small and difficult to visually recognize because it is integrated with the background. In addition, it is difficult to instantly determine which road is prohibited from entering.

According to a report (Driven to distraction: Motorists spend a FIFTH of their time not looking at the road-Mail Online), more than 70% of drivers It was reported that he was looking at the road surface ahead of time, and the above-mentioned self-supporting signs could easily be overlooked.

The road surface sign can be displayed in a large size, and the driver often sees the road surface ahead, so it is easy to see. However, in the case of a road marking that prohibits one-way traffic or the like, it is necessary to display a sign effectively only on the reverse-side road, but it is difficult with a conventional road sign. Further, since the road surface sign is rubbed on a daily basis by the wheels of the vehicle passing through the displayed road surface, the display becomes thin with time and becomes difficult to visually recognize. Although the trace that the x mark indicating entry prohibition is displayed on the road surface of the right road shown in FIG. 6, it is considered difficult for the driver to visually recognize from the traveling vehicle. As described above, the conventional road surface marker may not necessarily prevent reverse running or the like effectively.

SUMMARY OF THE INVENTION An object of the present invention is to provide a sign structure that is installed on a road surface and can be seen only from a specific direction.

In order to achieve the above object, according to the first aspect of the present invention, there is provided a sign structure embedded in a road surface, and a plurality of inclined members having inclined surfaces inclined with respect to the ground surface, and the inclined members. A plurality of inclined members, each of which includes a plurality of inclined members. A technical means is used in which the divided signs can be visually recognized in combination with the surface, and the signs to be displayed are displayed so as to be visible.

The device according to claim 2 uses the technical means that in the marker structure according to claim 1, the marker to be displayed is a marker indicating entry prohibition.

In the invention described in claim 3, in the marker structure according to claim 1 or 2, the technical elevation means that the marker elevation angle θ from the ground surface of the inclined member is 10 ° ≦ θ ≦ 45 °. Is used.

According to a fourth aspect of the present invention, in the marker structure according to any one of the first to third aspects, the inclined member displays the first marker to be shown from the first direction so as to be visible. A first group consisting of a plurality of inclined members, and a second group consisting of a plurality of inclined members displaying the second sign to be shown from the second direction opposite to the first direction. The technical means of consists of

According to the sign structure of the present invention, since the sign structure is installed on the road surface in the traveling direction of the vehicle, the sign can be displayed in large size, and the driver can drive a lot of time while driving while looking at the road surface ahead. Therefore, the driver of the vehicle can easily see the sign.
Further, since the contents of the sign can be viewed only from a specific direction, it can be suitably used as a sign indicating entry prohibition, such as prohibition of one-way entry and restriction of passage in a factory.
Since the portion where the divided sign is displayed is located below the uppermost part of the sign structure, it is not rubbed by the wheel, so it is not as thin as a road surface sign and difficult to see.
In addition, by setting the sign elevation angle θ to an appropriate value, the sign can be set to be visible from a distance that allows the driver to sufficiently cope with avoiding entry after visually confirming the sign.
By constituting the inclined member from the first group and the second group having different signs visually recognized from different directions, different signs can be displayed to the driver of the vehicle having different traveling directions.

It is explanatory drawing which shows typically the structure of the marker structure of this invention. FIG. 1A is a top view, FIG. 1B is an explanatory view showing a part of a cross section in the longitudinal direction, and FIG. 1C is an example of an inclined member on which division signs are displayed. It is sectional explanatory drawing which shows the construction example of a marker structure. It is explanatory drawing which shows a sign structure when seeing a sign structure from a driver | operator's viewpoint from diagonally. 3A is a sign structure viewed in the forward direction from a distance, FIG. 3B is a sign structure viewed in the forward direction when approaching a desired distance, and FIG. 3C is the reverse direction. The sign structure as seen. It is a simulation figure which shows how a sign looks when a sign structure is installed. It is explanatory drawing which shows the example of a change of a marker structure typically. It is explanatory drawing which shows the example of a road considered that a sign is hard to see and it is easy to reverse.

(Structure of sign structure)
The sign structure of the present invention will be described with reference to FIG.

As shown in FIG. 1, the sign structure 1 includes a frame member 10 (corresponding to a “fixing member”) that forms a rectangular frame at a constant height, and a plurality of marker structures 1 arranged in parallel at regular intervals within the frame of the rectangular frame. A strip-like main member 11 (corresponding to a “fixing member”) and an inclined member 12 attached to the main member 11 and having an inclined surface inclined with respect to the ground surface G. Further, for reinforcement, a cross bar that is fixed in pressure contact with the main member 11 may be provided.

Here, a direction from the direction in which the inclined member 12 is installed toward the sign structure 1 is referred to as “forward direction”, and a direction opposite to the “forward direction” is referred to as “reverse direction”.

The inclined member 12 has a fixed sign elevation angle θ that is inclined downward with respect to the ground surface G, and is fixed to the upper end 11a of the main member 11 at the upper end 12a. Divided signs Hb obtained by dividing the sign H to be indicated by the sign structure 1 are respectively displayed on the inclined surface 12b visible from above. Here, a case where the sign to be shown is an “entry prohibited” sign will be described as an example.

As shown in FIG. 1C, the divided sign Hb is divided into the “prohibited entry” sign H and is displayed on the inclined surface 12b in a band shape from the upper end 12a in the width direction. The division mark Hb is displayed by drawing with a paint or the like on the inclined surface 12b or sticking a seal.

The area (width W) for displaying the divided sign Hb on the inclined surface 12b is set to a distance at which the driver wants to visually recognize the sign. At that distance, the divided sign Hb can be combined and visually recognized. Set to be visible. Here, it is determined that the sign H is displayed by the divided sign Hb with a state where the contents of the sign H can be visually recognized.

An installation example of the sign structure 1 will be described.

As shown in FIG. 2, the sign structure 1 is fixed to the ready-mixed concrete layer 3 formed on the chestnut layer 2 by fixing means 4 such as anchor bolts, and the upper surface is substantially flush with the ground surface G. Buried. In the ready-mixed concrete layer 3, a drain hole 3 a that opens to face the lower surface of the sign structure 1 is formed, and the drain hole 3 a is connected to the drain pipe 5.

Since the portion where the divided sign Hb is displayed is located below the uppermost part of the sign structure 1, it is not rubbed by the wheel, so it is thin and difficult to see like a conventional road sign. There is no.

FIG. 3 shows how the sign structure 1 is seen from an oblique perspective from the driver's viewpoint.

FIG. 3 (A) shows the sign structure 1 viewed in the forward direction from a distance, and it is difficult to recognize the exact contents of the sign H.

When the driver approaches the distance at which he wants to visually recognize the sign H, the interval between the divided signs Hb is narrow, or the divided signs Hb are seen continuously, so that the sign H is displayed as shown in FIG. It can be recognized that this indicates “no entry”.

FIG. 3C shows how the sign structure 1 is seen in the reverse direction when approaching the same distance as FIG. 3B. When viewed from the reverse direction, the sign H that is clearly visible from the forward direction is not visible at all. Thus, in the sign structure 1, the sign H can be viewed only from a specific direction (forward direction). Thereby, the sign H can be made visible only when the vehicle approaches from the forward direction. Therefore, the sign H is particularly suitable as a sign indicating prohibition of entry, such as prohibition of one-way entry and restriction of passage in a factory. be able to.

Since the sign structure 1 appears to contract in the traveling direction of the driver, the frame member 10 is rectangular, for example, (the length of the side in the forward direction): (forward direction) in order to display the sign H in an easily visible manner. The length of the side perpendicular to the surface is preferably 2: 1.

The division | segmentation label | marker Hb can be made into the label | marker structure 1 with high visibility also at night by displaying with a phosphorescent paint or employ | adopting a reflecting material. Moreover, illumination facilities, such as LED lighting, can also be prepared separately.

The sign structure 1 can also be manufactured by using a ready-made grating that is used by being applied to the upper surface of a rainwater mass or a side groove. For example, a separately prepared inclined member 12 can be attached to a grating made of a member corresponding to the frame member 10, the main member 11, and the crossbar by welding or the like. Thereby, the label | marker structure 1 can be easily manufactured using ready-made goods.

The main member 11 and the inclined member 12 may be members that are curved or wide. According to this, the direction in which the sign H can be visually recognized can be expanded.

The inclined member 12 can be composed of a first group and a second group with different signs visually recognized from different directions. As shown in FIG. 4, a first inclined member 12A that forms a first group visible from the forward direction and a second inclined member 12B that forms a second group visible from the reverse direction. It can be set as the structure provided. As a result, different signs H can be displayed for drivers of vehicles with different traveling directions. For example, a sign indicating prohibition of entry from the forward direction and a sign capable of proceeding from the reverse direction are visible. Can do.

(Effect of embodiment)
According to the sign structure 1 of the present invention, since the sign structure is installed on the road surface in the traveling direction of the vehicle, the sign can be displayed in a large size, and the driver can drive a lot of time while driving while looking at the road surface ahead. Therefore, the driver of the vehicle can easily see the sign.
Further, since the contents of the sign can be viewed only from a specific direction, it can be suitably used as a sign indicating entry prohibition, such as prohibition of one-way entry and restriction of passage in a factory.
Since the portion where the divided sign is displayed is located below the uppermost part of the sign structure 1, it is not rubbed by the wheel, so it will not be as thin as a road sign and difficult to see.
In addition, by setting the sign elevation angle θ to an appropriate value, the sign can be set to be visible from a distance that allows the driver to sufficiently cope with avoiding entry after visually confirming the sign.

In the actual model of the sign structure, the distance at which the sign was visible was calculated.

The actual machine model was a marker structure with outer dimensions: width 1000 mm, length (forward direction) 2000 mm, height 50 mm, and main member arrangement interval (slit pitch) D 40 mm.

The viewpoint height h is 1200 mm as the viewpoint height of a standard passenger car operator. The label width W of the divided labels was set to 10 mm in consideration of the continuity of the visually recognized labels. The distance L (m) at which the marker H can be confirmed was calculated from the relationship with the adjacent main member, using the marker elevation angle θ (°) as a parameter. The results are shown in FIG.

If the sign elevation angle θ is too large, the amount of light may be insufficient, or the display may be distorted when converted from the divided sign Hb to the sign H, making it difficult to view. Moreover, if the sign elevation angle θ is too small, the sign H may be visually recognized from the opposite direction.

It is preferable that the size of the sign H is about 5 m ≦ L ≦ 20 m so that the sign can be recognized at a sufficient distance for stopping the vehicle or changing the traveling direction.

From the above, it is preferable that the sign elevation angle θ from the ground surface of the inclined member 12 is 10 ° ≦ θ ≦ 45 °.

DESCRIPTION OF SYMBOLS 1 ... Marking structure 10 ... Frame member 11 ... Main member 11a ... Upper end 12 ... Inclined member 12a ... Upper end 12b ... Inclined surface 12A ... First inclined member 12B ... Second inclined member 2 ... Kuriishi layer 3 ... Ready-mixed concrete layer 3a ... Drain hole 4 ... Fixing means 5 ... Drain pipe H ... Sign Hb ... Dividing sign

Claims (4)

A sign structure embedded in a road surface and used.
A plurality of inclined members having an inclined surface inclined with respect to the ground surface, and a fixing member arranged in parallel with the inclined members,
Divided signs obtained by dividing the sign to be shown are respectively displayed on the inclined faces visible among the inclined faces of the inclined members,
The sign structure, wherein the divided signs are combined and can be visually recognized by the inclined surfaces of the plurality of inclined members, and the signs to be displayed are displayed so as to be visible. The sign structure according to claim 1, wherein the sign to be displayed is a sign indicating entry prohibition. 3. The sign structure according to claim 1, wherein a sign elevation angle θ from the ground surface of the inclined member is 10 ° ≦ θ ≦ 45 °. The inclined member is
A first group consisting of a plurality of inclined members for displaying the first sign to be shown from the first direction so as to be visible, and a second sign to be shown from the second direction opposite to the first direction. The sign structure according to any one of claims 1 to 3, comprising a second group of a plurality of inclined members that are displayed so as to be visible.