Land vehicles – Wheeled – Occupant propelled type
Patent
1994-06-29
1996-11-26
Boehler, Anne Marie
Land vehicles
Wheeled
Occupant propelled type
2802501, B62M 116
Patent
active
055777481
ABSTRACT:
A wheelchair having a structural frame, a first pair of front, ground-engaging wheels and a pair of fixed drive wheel assemblies, each including a hub is provided. The invention further includes a free floating handle or lever arm rotatably attached to at least one of the drive wheel assemblies. The lever arm engages the hub of each wheel drive assembly through the use of a friction engagement system, thereby enabling propulsive forces to be exerted on the wheelchair to propel the wheelchair in either a forward or rearward direction. The leverage thereby obtained is not limited by the radius of the wheel rim and the amount of leverage desired may be controlled by the user simply by placing the user's grasp at various locations along the lever arm. The lever arm and friction engagement system may also serve as a braking system for the wheelchair.
REFERENCES:
patent: 3301574 (1967-01-01), Good
patent: 4274650 (1981-06-01), Gilles
patent: 4354691 (1982-10-01), Saunders
patent: 4366964 (1983-01-01), Farey et al.
patent: 4421336 (1983-12-01), Petrofsky et al.
patent: 4524988 (1985-06-01), Netznik
patent: 4682784 (1987-07-01), Anderson
patent: 4840076 (1989-06-01), Brubaker et al.
patent: 4892323 (1990-01-01), Oxford
patent: 5020818 (1991-06-01), Oxford
patent: 5037120 (1991-08-01), Parisi
patent: 5184837 (1993-02-01), Alexander
Don Kreb's Access to Recreation Catalog (Fall 1992) Advertisement.
"Wheel Chair 1920s"--Stamp (8.4 USA), Advertisement.
Sports 'N Spokes, Thera Sport, Inc. Advertisement, Mar./Apr. 1993, p. 86.
O'Neill, The Miami Herald, "High-tech Help for Disabled At Expo", Oct. 21, 1991.
LaMere, et al, Sports 'N Spokes Reprint, "The History of Sport Wheelchairs--Part I, The Development of the Basketball Wheelchair", Mar.-Apr. '84, pp. 1-4.
LaMere, et al, Sports 'N Spokes Reprint, "The History of Sport Wheelchairs--Part III, The Racing Wheelchair 1976-1983", Jul./Aug. 1984, pp. 1-4.
Walsh, Sports 'N Spokes Reprint, "The Effect of Pushing Frequency on Speed in Wheelchair Sprinting", May/Jun. 1987, pp. 1-2.
Spooren, Sports 'N Spokes Reprint, "The Technical Characteristics of Wheelchair Racing", Nov./Dec. 1981, pp. 1-2.
Sports 'N Spokes, "The Crank" (Advertisement for Alpha Kinetics, Inc.).
Sports 'N Spokes, "Description of Survey Categories", Mar./Apr. 1993, pp. 38-39, 66.
Higgs, (published in The 1984 Olympic Scientific Congress Proceedings, titled "Sport and Disabled Athletes", vol. 9), Propulsion of Racing Wheelchairs, pp. 165-172 and Appendix J. titled Wheelchair Design, pp. 295-297.
Dombrowski Gregory J.
Song Jay H.
Boehler Anne Marie
Judson David H.
Walker Brian
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