| 摘要 |
PURPOSE:To maintain smooth sliding of movable sheave at anytime by making the angle between the inner face of an insertion hole and the endface of bearing member continuous to the opening of said insertion hole lower than 90 deg.. CONSTITUTION:The angle theta between the inner face of an insertion hole 11 and the endface 12a of a bearing member 12 continuous to the opening of said insertion hole 11 is made lower than 90 deg.. Since the friction powder of V-belt 6 adhered to the drive shaft 1 is scratched by the edge 13 of said opening, biting of friction powder is prevented to maintain smooth sliding of movable sheave 8 at anytime. |
