| 摘要 |
<P>PROBLEM TO BE SOLVED: To devise structure of a detection tool which detects that an operator goes out of a safety area to assure safety in a live-line operation. <P>SOLUTION: This safety tool for live-line approach alarm includes: a light emitter 60 with a flag which has a support bar 13 in a predetermined shape, a flag part 12 which can be visually inspected and is attached to a predetermined position of the support bar 13, and a light emitter body 62 which is attached to the support bar 13 except the flag part 12 to emit light in a predetermined direction; and a light receiver 61 with a flag which has a light receiver body 63 similarly attached to receive the light from the predetermined direction, and a buzzer tone output part 31 which rings an alarm tone when the light from the light emitter body 62 of the light emitter 60 with the flag to be received by the light receiver body 63 is shielded, and the light emitter 60 with the flag and the light receiver 61 with the flag are arranged so that the light emitter body 62 of the light emitter 60 with the flag and the light receiver body 63 of the light receiver 61 with the flag face each other by holding a predetermined interval at a position for demarcating a safe boundary area at an electric power cable tower 2. <P>COPYRIGHT: (C)2012,JPO&INPIT |
