Land vehicles – Skates – With propulsion means driven by occupant
Patent
1994-08-25
1996-02-20
Tyson, Karin L.
Land vehicles
Skates
With propulsion means driven by occupant
280 112, A63C 1714, A63C 1708, A63C 1712
Patent
active
054923450
ABSTRACT:
Spaced frame rails mount a U-shaped frame therebetween, wherein the U-shaped frame is pivotally mounted relative to a first axle mounting a first wheel at a first end of the side rails, with a second axle mounted at the second end of the side rails supporting a second wheel. The side rails include extension legs extending from the side rails mounting a spool axle, with the spool axle mounting a first spool wheel that is mechanically coupled to the U-shaped support frame by means of a first string, with a second string directed from a second spool wheel on the spool axle to a third spool wheel mounted to the second axle, that in turn includes a ratchet and pawl structure, whereupon pivoting of the U-shaped frame rotates the first and second spool wheels as well as the third spool wheel to effect rotation of the ratchet and second axle effecting propulsion of the roller skate structure.
REFERENCES:
patent: 619370 (1899-02-01), Wagner
patent: 3039790 (1962-06-01), Trott
patent: 3285618 (1966-11-01), Welch
patent: 4417737 (1983-11-01), Suroff
patent: 4445698 (1984-05-01), Stillwell
patent: 4602801 (1986-07-01), Vincent
patent: 4696485 (1987-09-01), Lee
patent: 4706974 (1987-11-01), Vincent
patent: 5056802 (1991-10-01), Piotrowski
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