Retractable jump rope

Details Retractable jump rope Retractable jump rope

1992-03-03

1993-03-02

Crow, Stephen R.

Exercise devices

Skipping

Handheld jump rope

A63B 520

Patent

active

051905086

ABSTRACT:
The jump rope which is disclosed includes a spiral cord which is extendable from a relatively short to a relatively long length by centrifugal force when swung. In its short form, the spiral cord is stored in tubular handles affixed to ends of the cord and fixable to each other. The handles are disconnectable from each other to release the spiral cord, and are manipulated to swing the cord to extend the cord for jumping rope.

REFERENCES:
patent: 512483 (1894-01-01), Patterson
patent: 3762704 (1973-10-01), Gingras
patent: 4007931 (1977-02-01), Wich et al.
patent: 4934691 (1990-06-01), Rudd
patent: 4955601 (1990-09-01), Ueng
patent: 5054772 (1991-10-01), Winston

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