| 摘要 |
PROBLEM TO BE SOLVED: To provide a protection cover capable of two-stage installation of wiring/piping materials.SOLUTION: A long protection cover Ccomprises a base Vfixed to a wall surface K, and a lid Lincorporated in the base Vso that an accommodation space for the piping materials P-Pis formed by the incorporation into the base V. The base Vis provided with a first holding part 1 for holding the piping materials P, Pand a second holding part 11 for accommodating piping materials P, Pon the side opposite to the wall surface K relative to the piping materials P, Pheld by the first holding part 1. The base Vhas a narrower width than the case of each of the piping materials P-Pbeing installed in parallel in a direction along the wall surface K, thus allowing two-stage installation. |
