| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a flexible signal light with high visibility at night and convenient to use. <P>SOLUTION: The signal light is composed of a thick fixed FRP tube (A) incorporating a portable lamp unit (U) at a foot part, and a thin extensible FRP tube (B) plugged and fitted into the inside of the fixed FRP tube (A) not to be pulled off. Around an outer periphery face of each FRP tube (A), (B), red-color light-transmitting sheets (5a), (5b) and white-color light-reflecting sheets (6a), (6b) are alternately wound in a stripe pattern, and at the same time, an extended state in which the extensible FRP tube (B) is pulled out of the fixed FRP tube (A) and a contracted state in which the same (B) is pushed inside the fixed FPR tube (A) both are to be locked with a lock pawl (22) for extension and contraction limit positioning. <P>COPYRIGHT: (C)2010,JPO&INPIT |
