| 摘要 |
PURPOSE: A lifting roller with an anti-slip function and a line hauler using the same are provided to efficiently reduce the slip of a line without concern on the reduction of lifting efficiency according to the abrasion of a frictional member. CONSTITUTION: A lifting roller comprises a rotary shaft located in the center to transfer torque, a first disk(30) which is coupled to the rotary shaft and formed with first grooves and first teeth alternately arranged along the peripheral part, and a second disk(40) which is formed with second grooves and coupled to the rotary shaft opposite to the first disk so that the first teeth are located in the second grooves. |
