초록 ▼

A pavement marker structure and method for making same is provided wherein a pre-molded base block is clad with an in situ molded cap structure. One or two retro-reflective flattened reflectors are preferably mounted as insets between the base block and the cap structure. Use of epoxy resins is avoi

A pavement marker structure and method for making same is provided wherein a pre-molded base block is clad with an in situ molded cap structure. One or two retro-reflective flattened reflectors are preferably mounted as insets between the base block and the cap structure. Use of epoxy resins is avoided, the pavement marker structure is durable and resists attack by moisture.

대표청구항 ▼

A pavement marker comprising: (A) a unitarily molded flattened based block having: (1) a transversely extending central channel defined therethrough, (2) a generally convex upper surface that has a plurality of troughs defined therein, (3) a generally convex thickened side perimeter, (4) a generally

A pavement marker comprising: (A) a unitarily molded flattened based block having: (1) a transversely extending central channel defined therethrough, (2) a generally convex upper surface that has a plurality of troughs defined therein, (3) a generally convex thickened side perimeter, (4) a generally planar bottom surface, and (5) said base block having defined in said upper surface a first flattened recessed area; and (B) a flattened lenticular retro-reflective reflector means with a smooth planar front face, a prismatically surfaced back face, and a perimetrically extending side wall, and said side wall rests upon said first flattened area so that said back face is in spaced relationship to said first flattened recessed area; and (C) a unitary molded cap structure that clads said base block and said reflector side wall, said cap structure having: (1) a protrusion that fills said channel, (2) a dish-configured portion which (a) has a generally concave inner surface that extends over said upper surface and fills said troughs, (b) has a generally convex outer surface, (3) a generally convex side portion that extends over said side perimeter, and (4) an aperture defined therein that is located over and adjacent to said reflector means and through which said reflector means is visible, said cap structure having edge portions extending around said aperture that abut against and overlap upon portions of said side wall of said reflector means, said cap structure having been so molded in situ by flowing a thermoplastic resin through said central channel and over said upper surface and said side perimeter; whereby the interrelationship between said base block, said cap structure and said reflector means is such that said cap structure is mechanically interlocked with said base block and said reflector means is sealed in, not separatable from, and not replaceable in said pavement marker with a space being located between said reflector back face and said first flattened recessed area.