| 摘要 |
<p>PROBLEM TO BE SOLVED: To make it easy to lead a power cable installed in a roof-space into a room by providing a body with a separating section coupled to the extent that it is possible to easily detach the separating section, and attaching a cable coupling string of an appropriate length to the separating section. SOLUTION: A longitudinally divided circumferential wall section 12 is formed on the inside circumference of the ring-shaped base plate 11 of a protection bushing, and a projected latching section 13 is formed on the circumference of the top of the circumferential wall section 12. In addition, a large number of fan-shaped protection pieces 14 and a separating section 15 both ends of which are slightly coupled with the ring-shaped base section 11 are formed inside the ring-shaped base section 11. A hole is drilled in a ceiling panel to expose the separating section 15 of the protective bushing. When the separating section 15 is torn and pulled out, a power cable is pulled out to the inside of the room by a coupling string 2. When pulled out, the cable is protected by the protective pieces 14, and is thereby prevented from being damaged by a metal edge. This makes it possible to pull out the power cable from the room side.</p> |
