Class pulling trainers

摘要

PROBLEM TO BE SOLVED: To improve the efficiency of training by changing the traction torque of a rotary drum for winding a traction rope in a tug-of-war training device and making the training similar to the actual tug-of-war motion.;SOLUTION: The section of the rotary drum 1 for winding a traction rope 8 is jujube-shaped or oval, etc., so that the traction rope 8 is wound on a non- circular rope winding surface A and the traction torque is changed.;COPYRIGHT: (C)2002,JPO