JPH086814Y2 - Road reflective tacks - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention relates to a road reflecting stud for attaching incident light from a vehicle headlight to a road surface or a curb so as to return it to a driver so that the left side and the right side in the traveling direction can be visually recognized.

2. Description of the Related Art Conventionally, road reflecting tacks are known in which a prismatic reflection plate is attached to both sides or one side of a substantially rectangular base which is inclined. The mounting angle of the reflector is extremely important for correctly returning the incident light from the vehicle headlamp to the driver by this kind of road reflecting tack. If you install the road reflective tack by swinging it at the desired angle, you only need one type of road reflective tack, but it is easy to do so even if you swing it at the specified angle. Instead, it was rather inefficient and inefficient. Therefore, in the past, in any case, the base of the road reflecting tack was installed in a direction orthogonal to the curb, etc., and instead, the intersection angle θ of the two reflecting plates of the road reflecting tack was different (for example,
I tried to prepare several kinds (50 °, 25 °, etc.).
However, it goes without saying that even if several types with different intersecting angles θ are prepared, they do not meet all the conditions correctly.

[Problems to be solved by the device]

The object of the present invention is to eliminate the above-mentioned drawbacks and to perform the mounting work efficiently by devising such that the desired angle can be set easily and correctly.

[Means for Solving the Problems]

Therefore, according to the present invention, the bottom peripheral edge of the base of the road reflecting tack is constituted by an arcuate peripheral portion having a constant radius from the center of the road reflecting tack, and the center line passing through the center is the circular line in the arcuate peripheral portion. A main reference mark is located where it intersects with the arc-shaped peripheral portion, and a sub-reference mark is located where the orthogonal center line orthogonal to the center line intersects the arc-shaped peripheral portion, and a deflection angle indication mark that indicates the deflection angle from the sub-reference mark. Is provided.

[Action]

After placing the road reflective studs by matching the main reference mark with a virtual straight line along the longitudinal direction of the curb, then from the position of the sub-reference mark using the curve of the arc-shaped peripheral edge portion and the deflection angle instruction mark. Use a pencil or the like to write the position of the desired angle on the top of the curb. After that, apply adhesive to the bottom of the road reflective stud, and then follow the curve drawn by tracing the arc-shaped peripheral edge of the road reflective stud on the curb upper surface, and add the sub-reference mark of the road reflective stud to the curb upper surface. Attach it so that it matches the written desired swing angle position. By doing so, the road reflecting tack is mounted in a state where it is swung correctly at the desired angle.

【Example】

In FIG. 1 showing an embodiment of the present invention, this road reflecting tack has an intersection angle θ formed by two reflecting plates 1, 1 of 50 °. The difference from the conventional road reflective tack is that the peripheral edge 3 of the base 2 is
However, an arcuate peripheral edge part 3a with a constant radius from the center of the road reflective tack
, And another arcuate peripheral edge portion 3b, and at the position where this arcuate peripheral edge portion 3a intersects with the center line passing through the center of the road reflecting tack, it may be a notch or a protrusion as shown, but the main reference Marks 4 and 4 are provided, and a sub-reference mark 5 similar to the main reference marks 4 and 4 is provided at a position where an orthogonal line passing through the center and orthogonal to the center line intersects the arc-shaped peripheral edge portion 3a of the peripheral edge 3. The left and right arcuate peripheral edge portions 3a of the sub reference mark 5 are provided with deflection angle indicating marks 6 indicating the deflection angle from the sub reference mark 5. If necessary, the deflection angle indicating mark 6 is engraved with a number indicating the angle. In the illustrated example, only one deflection angle indicating mark 6 is provided at 45 °, but it is more convenient to provide it more finely at intervals of 10 °, for example. To attach this road reflective tack to a curb, etc., do the following. First, it is calculated how many times the reflecting plate 1 at the determined mounting position should be tilted with respect to the longitudinal direction of the curb, and if the intersection angle θ is, for example, 50 °, the angle α to be swung in that case is calculated.
Ask in advance how many times it will be. Next, align the main reference marks 4 and 4 of the road reflective tack placed on the top of the curb with the longitudinal direction of the curb, trace the arc-shaped peripheral portion 3a with a pencil or the like to draw the curve on the curb, and at the same time, mark the deflection angle indication. 6 is used to mark the position of the angle α from the sub reference mark 5. After that, the arc-shaped peripheral part of the road reflective tack
3a is aligned with the curve drawn on the curb, and the sub-reference mark 5 is aligned with the mark at the position of the angle α from the sub-reference mark 5, and the road reflecting tack is attached.

[Effect of device]

As is clear from the above description, since the arc-shaped peripheral portion of the road reflecting tack is formed with a constant radius from the center, the curve obtained by tracing the arc-shaped peripheral portion shows the arc-shaped peripheral portion of the road reflecting tack. By matching with, it is possible to keep the center of the road reflective studs unchanged and ensure the accuracy of installation. Moreover, since the main reference mark, the sub-reference mark and the deflection angle indication mark are provided on the arc-shaped peripheral portion of the road reflecting tack,
The installation work for setting the road reflective stud at a desired installation angle becomes easy, which largely contributes to the efficiency of the installation work.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention, and FIG. 2 is an end view taken along the line II-II of FIG. 1 and seen in the direction of the arrow. DESCRIPTION OF SYMBOLS 1 ... Reflector 2 ... Base 3 ... Perimeter of base 3a ... Arc-shaped peripheral part with a constant radius from the center of road reflecting tack 3b ... Other arc-shaped peripheral part 4 ... Main reference mark 5 ... Sub reference mark 6 ... Deflection angle Instruction mark

Claims (1)

[Scope of utility model registration request] 1. A bottom peripheral edge 3 of a base 2 of a road reflecting tack to which a reflecting plate 1 of a prism reflecting type is attached is formed as an arc-shaped peripheral portion 3a having a constant radius from the center of the road reflecting tack, and the arc-shaped margin. In the part 3a, the center line passing through the center is the arcuate peripheral edge part.
Main reference marks 4 and 4 are shown at positions intersecting with 3a, sub-reference marks 5 are shown at positions where orthogonal center lines orthogonal to the center line intersect the arcuate peripheral edge 3a, and deflection angles from the sub-reference marks 5 are shown. Road-reflective tacks provided with deflection angle indicating marks 6, respectively.