Chest expander for fitness training

摘要

The expander has a circular flywheel disc (10), with holes for mounting on two opposing cords, which are connected to handgrips (14). The cords are formed from a continuous rope (12), which passes loosely through two holes (18) in one handgrip, and whose ends (20) are secured after passing through holes on the other handgrip. The ends of the rope may be secured by knots (22). The disc may have at least two pairs of holes, which lie on circles of different dias., and which are concentric with its centre. When untwisted, the cords may diverge from the disc towards the handgrips, and may be secured to the disc by clamps.