| 摘要 |
<p>A retroreflective pavement marker (10) includes a housing (12) formed of thermoplastic materials having a generally planar top surface (14) and a plurality of side walls (16) downwardly inclined from the top surface (14). Reflector elements (18) are fixed to at least one side wall (16). At least one slot (26) is formed in the top surface (14). A generally flat metal plate (20) is provided, dimensioned and configured to be substantially coextensive with the top surface (14) and having at least one downwardly extending barb member (22). The barb member (22) is inserted into the slot (26) preferably by ultrasonic insertion.</p> |
