Training unit with magnet controlled tension has return unit with adjustable springs on flexible mounts

摘要

A training unit has magnet controlled tension and a return unit (9) using springs (91) adjusted (94) between flexible mounts (13) to pull back the cord (95) driving the small wheel (22) on the shaft (4) to return the large wheel (2) through a one way coupling to its original position when the hand grip (81) is let back.