| 摘要 |
PURPOSE:To enhance workability and allow the easy handling without being influenced by the more skillful hand by forming at least a pair of hand insert holes allowing the insertion of a hand near the mounting hole of an equipment body. CONSTITUTION:A pair of hand insert holes 3, 4 allowing the insertion of a hand are formed near the mounting hole 2 of an equipment body 1. When a body 1 is constructed, the body 1 is inserted to the recessed hole of a ceiling, a hand A is inserted to the left hole 3, for example, in the case of a left-hander, and a nut 6 is passed to the major diameter part 7 of the hole 2 while holding a mounting bolt 5, and a bolt part 10 is further passed to a slit part 8. At this time, the work is conducted while seeing the bolt 5 through the right hole 4. The nut 6 is fastened to the slit part 8 to engagingly lock the locking collar of the body 1 to the edge part of the recessed hole, and the mounting is completed. In the case of a right-hander, the hand A is inserted to the right hole 4, for example, and the work is conducted while seeing the bolt 5 through the hole 3. Thus, the workability is enhanced, and the equipment can be easily handled without being influenced by the more skillful hand. |
