| 摘要 |
<p>PURPOSE:To deal with a case where the cable rack is long or where a plenty of cables are laid simultaneously by coupling a head roller through a coupling rope with many other rollers having no drive unit thereby reducing power required for wiring of cable. CONSTITUTION:A cable C is held on many rollers A1-An coupled through a coupling rope B1, and then the rollers A1-An are mounted successively on a cable track R, run on the cable track R and lowered from the cable track R at the other end. Since the cable C is carried on the rollers it does not slide on the bottom plate of the cable track R, and since the rotational resistance of the rollers A1-An against the cable track R is low the cable C can be pulled with small traction force.</p> |
