| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a wall penetrating device which assembles a line and causes it to pass through a wall technically easily. SOLUTION: In this wall penetrating device, walls 2, 3, 4 are penetrated by penetrating openings 6, 6', 7 whose brims are closed for causing a line 1 to pass, and the wall 2 comprises a plurality of partial walls 3, 4 to be fitted mutually. At least two partial walls 3, 4 out of these have brims 5, 5' interrupted by cutouts which act as partial openings 6, 6', and the partial openings 6, 6' corresponding to each other join together and form a through opening 7.</p> |
