| 摘要 |
PROBLEM TO BE SOLVED: To provide a cone cover that suppresses wasting of a battery.SOLUTION: With a cone cover 10 of the present invention, all of a plurality of LEDs 22 are distributed unevenly in a limited region R1 that covers a half or less of a circumference of a cover member 11. As such, a majority of the plurality of LEDs 22 may be used effectively for calling attention of outsiders by having the limited region R1 face outside of a management area, thus suppressing wasting of a battery 32. Consequently, a replacement frequency of the battery 32 is reduced, lowering a running cost for the battery 32.SELECTED DRAWING: Figure 1 |
