Land vehicles – Wheeled – Occupant propelled type
Patent
1995-01-06
1996-01-09
Hurley, Kevin T.
Land vehicles
Wheeled
Occupant propelled type
2803041, 475331, 475319, 301122, B62M 114, B60B 2304
Patent
active
054823056
ABSTRACT:
A new wheel assembly (14), with a gear reducing hub (22), and including a new hand wheel assembly (30) mounted on a hand wheel hub (36) for a manual multispeed wheelchair (10), that has an improved shifting mechanism that allows easy shifting at user's hand level. A shifter (76) is rotated, which axially moves a shift member (52) to couple with drive chock openings (46) in direct drive or a planetary gear system (58) for low gear operation. The new wheel assembly (14) also includes a quick disconnect mechanism for easy change of the wheel assembly (14) from the wheelchair (10) without tools. A torque collar (144), on the inboard side of the hub (22), couples with a sleeve assembly (136) on the wheelchair (10) and allows torque to transfer directly from hub (22) to wheelchair (10).
REFERENCES:
patent: 870444 (1907-11-01), Leonard et al.
patent: 942843 (1909-12-01), Potter et al.
patent: 2759373 (1956-08-01), Orchard
patent: 3563568 (1971-02-01), Sasse
patent: 4351540 (1982-09-01), Minnebraker
patent: 4358126 (1982-11-01), Mitchell et al.
patent: 4360213 (1982-11-01), Rudwick et al.
patent: 4392690 (1983-07-01), Anderson
patent: 4582448 (1986-04-01), Costello et al.
patent: 4679862 (1987-07-01), Luo
patent: 4727965 (1988-03-01), Zach et al.
patent: 4762332 (1988-08-01), Seol
patent: 5160156 (1992-11-01), Mendon
patent: 5167168 (1992-12-01), Beumer
patent: 5184837 (1993-02-01), Alexander
patent: 5246082 (1993-09-01), Alber
patent: 5362081 (1994-11-01), Beidler et al.
Cleofe Jaures F.
Hyman Barry
Jeffries Benjamin L.
Kim Daehwan D.
Nguyen Steven
Hurley Kevin T.
Petrich Kathleen T.
University of Washington
LandOfFree
Shifting mechanism and quick release for multispeed 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 Shifting mechanism and quick release for multispeed wheelchair, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shifting mechanism and quick release for multispeed wheelchair will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1298498