| 摘要 |
PROBLEM TO BE SOLVED: To provide a cover capable of covering the whole of a special signal light emitting machine (form 2) by simple work.SOLUTION: Semicylindrical front surface cover portion and back surface cover portion constituting a body portion 11 are united by a hinge 12 provided on one side edge portion so as to open/close, and kept to close by a permanent magnet provided on the other side edge portion. A window portion 13 capable of opening/closing is formed at least on the front surface cover portion, and connecting portions 16, 18 of an operation bar 20 are provided near the other side edge portions on the front surface cover portion and the back surface cover portion. By the operation bar 20, the cover portions are kept in an opening state and lifted up at a height position of the special signal light emitting machine. After that, the special signal light emitting machine is put between the front surface cover portion and the back surface cover portion from side parts, and then the cover portions are closed to cover the whole of the special signal light emitting machine. The work can be performed from the ground, so that a stepladder or a ladder is not required. |
