Land vehicles – Wheeled – Occupant propelled type
Patent
1982-09-20
1984-06-12
Peters, Jr., Joseph F.
Land vehicles
Wheeled
Occupant propelled type
74141, 192 46, 280244, 280253, 297DIG4, B62M 116
Patent
active
044537298
ABSTRACT:
A wheelchair having a frame capable of supporting the occupant includes a plurality of wheels including two driving wheels. Left and right side levers are mounted on the wheelchair such that the tops of the levers can be moved back and forth reciprocally toward and away from the occupant of the wheelchair. When the levers are in a position towards the occupant of the wheelchair, they are in a neutral position and by pushing away from the occupant from the neutral position to a displaced position, a power stroke is performed. Movement of the levers in the reverse direction back toward the occupant constitutes a return stroke of the same. A power transfer mechanism includes a first and second ratchet operatively associated with each of the driving wheels. The first ratchet allows the driving wheel to free wheel at all times in a forward direction. The second ratchet allows the driving wheel to free wheel in both a forward and reverse direction whenever the lever associated with that wheel is in the neutral position, and as the lever is moved in the power stroke away from the occupant, the second ratchet transfers this movement through the first ratchet to rotate the driving wheel in the forward direction. The second ratchet transfers no movement to the first ratchet as the lever moves back toward the occupant in the return stroke.
REFERENCES:
patent: 2621678 (1952-12-01), Snyder et al.
patent: 3309110 (1967-03-01), Bulmer
patent: 3666292 (1972-05-01), Bartos
patent: 3877725 (1975-04-01), Barroza
patent: 3994509 (1976-11-01), Schaeffer
patent: 4274651 (1981-06-01), Dumont
Boswell K. H.
Fugate D. Lynn
O'Brian Edward D.
Peters Jr. Joseph F.
LandOfFree
Occupant propellable wheelchair does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Occupant propellable wheelchair, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Occupant propellable wheelchair will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-118226