TH27692A - Reflective road markings are located on the road surface. - Google Patents

Abstract

Road markings consist of a non-compacted top shell and a bottom base plate which together form the shell, and a group of ribs in the inner part of the shell aligned perpendicular to the inner wall of the base plate, the top shell's first and second opposing ends are beveled at a 30°C angle by volume, the lateral surfaces are convex, the first and second opposing ends have opposing recessed finger grooves formed in place, and one top surface, and are made of a plastic material with a medium to high modulus of elasticity and impact strength. The top shell has a low profile and curved edges to minimize vehicle impact, and is typically made from... The thermoplastic resin, such as polycarbonate, is used, and it is reinforced with approximately 30% glass fibers. The bottom base plate has a flat inner wall and opposing flat outer walls for gripping the road surface, and is made of plastic material; the plastic of choice has a Young's modulus of at least 300,000 PST (20.7 x 10⁸ Pascal). The outermost bottom surface of the shell may have external recesses formed into the surface to accommodate the base plate. The ribs are formed as a single unit with either the inner wall of the top shell or the base plate, and extend upwards from the inner wall of the base plate to the inner wall of the shell to support the inner wall of the shell. The lenses for backlighting are positioned on the first and second lateral surfaces of at least one marking surface. The ribs can be arranged axially and transversely in a grid pattern; or they can be divided into groups where the ribs form a circular pattern. The common center, with the second group whose beams extend radially relative to the first group, as indicated by the chosen position markers on the road surface, has the minimum apparent modulus of approximately 80,000 PSI (5.52 x 10⁸ Pascal).

Claims (17)

1. The protruding road marking consists of: a top shell without inserts, which has opposing beveled end surfaces (first and second faces), lateral surfaces opposite to the first and second faces, one top surface, one outer bottom surface, and one inner wall; this shell is made of a plastic material with a medium to high modulus of elasticity and high impact strength; a bottom base plate with a flat inner wall and an opposing flat outer wall for gripping the road surface; the inner wall of the base plate connects to the outer bottom surface below the top shell; the shell and base plate together form a cladding; and the cladding has an inner section defined by the inner wall of the shell and base plate; the base plate is made of a material with a Young's modulus of at least 300,000 PST (20.7 x 10⁸ Pascal). A group of slats oriented perpendicular to the inner wall of the base plate, the slats forming a single unit with one of the inner walls and extending upwards from the inner wall of the base plate to the inner wall of the enclosure to support the inner wall of the enclosure: for the lens of reflection positioned on the surface of the opposite end of at least one surface opposite the first and second surfaces. 2. The position markings on the road surface for claim number 1, where the surface of the first end and the second end of the surface are sloped at approximately a 30°C angle. 3. Position markings on the road surface for either claim 1 or 2; here, the lateral surfaces, surface one and surface two, shall be convex from top to bottom and from one end to the other; and here, the lateral surfaces, surface one and surface two, shall have fingertip grips formed by opposing indentations in the lateral surfaces. 4. Road surface markings for any one of Claims 1-3, where the maximum shell thickness is approximately 0.080 inches. 5. The road surface markings of any one of Claims 1-4, where the bottom surface of the shell has an external recess formed in the surface to support the base plate, and where the base plate is sized to fit into the recess. 6. The position markings on the road surface of any one of the claims 1-5, in this case the beam shall be formed as a single piece with the inner surface of the so-called shell. 7. The road surface markings for any one of the claims 1-5, in this case the beam shall form a single unit with what is called the inner wall of the base of the base plate. 8. The road surface markings for either claim 6 or 7 are arranged in a grid pattern herein. 9. The road markings for claim number 8 herein divide the beam slats into two groups: a first group that is circular in shape and has a common center, and a second group that is radially relative to the first group. 10. The road surface markings of any one of the claims 1-9, herein the base plate has a molded glass panel in place. 11. Position markers on the surface of any one of the claims 1-10, herein at least one end surface shall have a group of energy indicators cast into the surface and extending upward from there for the purpose of performing ultrasonic lens welding. 12. For any of the claims 1-11, the surface of at least one end surface shall have the first and second energy pointers cast herein and extending upwards from therein for ultrasonic lens bonding. The first energy pointer shall be in the form of partitions forming a cell, and the second energy pointer shall be in the form of separate pillars positioned in at least some cells. 13. The road markings for any one of Claims 1-12, herein the road markings have a minimum apparent modulus of approximately 80,000 PSI (5.52 x 10⁸ Pascal). 14. Road markings for any one of Claims 1-13, whereby the road markings have a minimum apparent modulus of approximately 100,000 PSI (6.90 x 10⁸ Pascal). 15. Road surface markings for any one of Claims 1-14, where the base plate has a Young's modulus greater than 400,000 PSI (27.58 x 10⁸ Pascal). 16. Road surface markings for any one of Claims 1-15, whereby the base plate has a Young's modulus greater than 500,000 PSI (34.48 x 10⁸ Pascal). 17. The position markings protruding from the pavement of any one of Claims 1-16 shall, herein, be sloped at approximately 30°C on the ends of the first and second surfaces, and be convex from top to bottom and from end to end.