| 摘要 |
<P>PROBLEM TO BE SOLVED: To install a protection cover at a corner constituted of two wall surfaces crossing at a right angle in a building suitably corresponding to a situation such as a position, etc. of a drawn hole formed in the wall surface. <P>SOLUTION: The protection cover 1 is mounted at the corner 33 constituted of a ceiling wall surface 31 and a side wall face 32 perpendicularly crossed in a room to protect a cable C. The protection cover 1 includes a base 2 attached to the side wall face 32, and a cover body 11 attached to the base 2. A large opening surface 12 and a small opening surface 13 are formed which intersect perpendicularly with the cover body 11. The first side wall 15 and the first side wall 16 can be formed so as to be changeable into an open state from a closed state. The length L1 of the large opening surface 12 and the length L2 of the small opening surface 13 are different. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
