Road stud

The road stud solution addresses the challenge of expensive traffic lights by using a step-wise rising road stud with reflective and lighting features to enhance traffic safety and intersection recognition at a low cost.

JP2025037686APending Publication Date: 2025-03-18HAYASHI BUSSAN HATSUMEI KENKYUSHO KK
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Patent Information

Application Number
JP2023144770
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-09-06
Publication Date
2025-03-18

AI Technical Summary

Technical Problem

Traffic lights are expensive and cannot be installed at all intersections, particularly in residential, suburban, and rural areas, necessitating a cost-effective solution for traffic safety and intersection recognition.

Method used

A road stud with a step-wise rising metal frame, featuring vertical portions with reflective materials and optionally equipped with LED lighting and a solar panel, to provide visibility and distinguish priority roads at intersections.

Benefits of technology

The road stud solution enhances traffic safety by providing low-cost, visible recognition of intersections and priority roads, even in low-light conditions, while preventing bicycles and motorcycles from falling and protecting vehicles from damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a road stud which can be installed at low cost and can contribute to traffic safety by enabling a driver to recognize whether or not it is an intersection or whether or not it is a priority road.SOLUTION: A road stud installed at an intersection has a frame body with a flat part and a vertical part that rises in a stepwise manner toward the center, and all or a part of the vertical part have a reflective material.SELECTED DRAWING: Figure 3
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Description

[Technical field]

[0001] The present invention relates to a road stud to be installed at an intersection. [Background technology]

[0002] Various signs are installed on roads to regulate traffic (for example, Patent Documents 1 to 3), among which are traffic lights. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2014-034833 A [Patent Document 2] JP 2014-173404 A [Patent Document 3] JP 2015-218480 A Summary of the Invention [Problem to be solved by the invention]

[0004] Traffic lights are expensive and cannot be installed at all intersections, including those in residential areas, suburban areas, and rural areas. The present invention aims to provide a road stud that can be installed inexpensively and contributes to traffic safety by enabling people to recognize whether an intersection is an intersection or whether a road has priority. [Means for solving the problem]

[0005] In this application: A frame body having a flat portion and a vertical portion and rising in a stepped manner toward the center, A road stud for installation at an intersection is disclosed, in which all or a portion of the vertical portion has reflective material. [Brief description of the drawings]

[0006] [Figure 1] 1 shows an intersection 1 using a road stud 10 according to one embodiment of the present invention. [Diagram 2] 1 shows a plan view of a road stud 10 of the present invention. [Diagram 3] 1 shows a cross-sectional view of a road stud 10 of the present invention. [Figure 4] 1 shows a cross-sectional view of a road stud 10A according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0007] FIG 1 shows an intersection 1 using a road stud 10 according to one embodiment of the present invention. As shown in the figure, the road stud 10 is installed in the center of the intersection 1 where two roads 2A, 2B intersect. The road stud 10 may also be installed at a T-shaped intersection. The road stud 10 can be installed at the intersection using an adhesive such as urethane, bolts, etc.

[0008] A road stud 10 is shown in Figures 2 and 3. As shown in the figures, the road stud 10 has a frame 11 made of a metal such as stainless steel. The frame 11 has a stepped shape that rises toward the center (Figure 3). This prevents the stud from falling over. Each step has a vertical portion 12 and a flat portion 13. The vertical portion 12 has a reflective material 12A or 12B (Figure 2). The reflective materials 12A and 12B may be formed from a metal plate / resin plate, etc., or may be formed by painting. A reflective material may also be provided on the flat portion 13.

[0009] It is advisable to color-code the reflective materials 12A and 12B according to the driving priority of the road 2. In the example of Fig. 1, if the road 2A is the priority road, the color of the reflective material 12A is yellow and the color of the reflective material 12B is red, it will be easy to identify the priority road.

[0010] Returning to FIG. 2, if light emitters 14 such as LED lights are provided on all or part of the central portion and / or vertical portion 12 to emit light, the visibility of the road stud 10 is improved, and the road stud 10 can be recognized even under conditions such as dusk / night / no lights. As with the reflective materials 12A and 12B, the light emitters 14 may be color-coded in yellow / red or other colors to enable the identification of priority roads. For example, a solar panel 15 may be provided in the center of the road stud 10 to supply power to the light emitters 14. If a battery (not shown) is provided to enable light emission at night, the road stud 10 can be recognized at night even without lights (e.g., by pedestrians). The battery can be housed in the central recess 16, for example.

[0011] The inside of the road stud 10 is preferably formed with a cushioning material 17 made of urethane or rubber (FIG. 3).

[0012] When the road stud 10 is installed in the center of the intersection 1, light from the vehicle's headlights etc. is reflected by the reflectors 12A, 12B, making the driver aware that there is an intersection ahead. By adopting a frame body 11 with a stepped rising shape, even if a bicycle or motorcycle runs over the road stud 10, the bicycle will not fall over. By making the rise gentler, safety can be improved. In addition, by having the buffer material 17, even if a car runs over the road stud 10, the buffer material 17 acts as a cushion and the road stud 10 will not be damaged.

[0013] 4 shows a road stud 10A of another embodiment. The road stud 10A differs from the road stud 10 in that the light-emitting body 14 and the solar panel 15 are placed on a central plate member 18, and the plate member 18 is supported from the bottom surface of the central recess 16 by an elastic member 19 such as a spring. The frame 11 and reflectors 12A, 12B can be the same as those of the road stud 10. The light-emitting body 14 and the solar panel 15 can descend together with the plate member 18 against the repulsive force of the elastic member 19, so that the load / stress applied to the light-emitting body 14 and the solar panel 15 due to the passage of a vehicle, etc. can be absorbed. After the vehicle passes, the light-emitting body 14 and the solar panel 15 rise due to the repulsive force of the elastic member 19 and return to their original state.

[0014] The dimensions, shapes, arrangements, number of steps, materials, etc. of the road studs 10 and their elements described in the above embodiment are merely examples, and other embodiments are possible. [Explanation of symbols]

[0015] 1. Intersection 2A, 2B...road 10, 10A...Road studs 11...Frame body 12...Vertical section 12A, 12B...Reflective material 13...Plane part 14. Illuminant 15. Solar panel 16...Central recess 17...Cushioning material 18...Plate member 19. Elastic member

Claims

1. A frame body having a flat portion and a vertical portion and rising in a stepped manner toward the center, A road stud for installation at an intersection, wherein all or part of said vertical portion has a reflective material.

2. The road stud according to claim 1, further comprising a shock absorbing material inside the frame.

3. 2. The road stud according to claim 1, wherein the reflective material is color-coded according to the driving priority of the roads intersecting at the intersection.

4. The road stud according to claim 1 , further comprising a light emitter in the center of the frame.

5. The road stud according to claim 4 , further comprising an elastic member for supporting the light emitter so as to be movable up and down.

Citation Information

Patent Citations

  • Traffic-control sign

    JP2014034833A

  • Reflective road marker

    JP2014173404A

  • Traffic sign

    JP2015218480A