| 摘要 |
<p>PROBLEM TO BE SOLVED: To surely suppress the slack of line material, with a simple constitution and satisfactory work efficiency, in an antiback stringing sheave used for stringing work of an optical cable or the like. SOLUTION: An object antiback stringing sheave can be obtained by equipping itself with frames 110 and 120, which are opened and closed by an engaging means 170, rollers 116 and 126 which are arranged within these and abut on each other, catching line materials 20 and 80 between themselves, an energizing means 150 which energizes them to the side where the rollers 116 and 126 come close to each other, and an antiback mechanism which regulates the reverse rotation of the rollers 116 and 126.</p> |
