To provide a solid triangular plate which does not tend to reflect the light of an automobile from the side at night.
This solid triangular plate 50 includes a body 51 formed of three long plates assembled in a triangular shape. One surface of each of the long plates has a curved surface 55 of semi-cylindrical shape in cross section. A reflective member 54 is installed on the curved surface 55. Since the reflective member 54 is curved in the lateral direction, the solid triangular plate 50 can reflect the light of the automobile even if the light is struck thereon from the front, and can also reflect the light even if the light is struck thereon from the diagonal direction or the lateral direction. Consequently, the solid triangular plate 50 can be easily recognized from an automobile or the like.
JP2008213806A | 2008-09-18 | |||
JPS54153140U | 1979-10-24 | |||
JPS5777060U | 1982-05-12 |