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Oval-gear bike = leg assist

Posted: Tue Aug 09, 2022 1:37 am
by snishi
Hi.

I am medical doctor, and research professor of japanese univ.
Recently, I made this bike with a pair of oval gears.
This one was designed for one-leg disabilities :), as you imagined.
Gear helps worlds!
09.jpg
09.jpg (108.96 KiB) Viewed 8202 times
(myweb)
https://www.satoshi-celica.com/JAVA4/14/webgl14p.html

satoshi nishimura

Re: Oval-gear bike = leg assist

Posted: Wed Aug 10, 2022 8:40 am
by ArtF
I love it. Elliptical gears definitely have a place for bikes..
Thank you for sharing that.

Art

Re: Oval-gear bike = leg assist

Posted: Fri Aug 12, 2022 4:19 am
by tweakie
Excellent work Snishi - that is just brilliant.

Re: Oval-gear bike = leg assist

Posted: Fri Aug 12, 2022 7:53 pm
by snishi
thanks for kind comments!

Re: Oval-gear bike = leg assist

Posted: Sun Oct 16, 2022 4:17 am
by BobL
Nice work.

Re: Oval-gear bike = leg assist

Posted: Sun Oct 16, 2022 11:00 am
by Mooselake
My right knee's range of motion is only 30 to 60 degrees after a PJI a few years and I can no longer ride a bicycle, my left knee works fine. I wonder if this could be adapted to my Trek hybrid for recreational riding? The southern Mooselake Manor is on flat land so need for low gear

Kirk

Re: Oval-gear bike = leg assist

Posted: Tue Oct 18, 2022 12:33 am
by snishi
there are so many possibilities, and solution depends on each disability.

https://www.satoshi-celica.com/JAVA4/03/webgl03.html
https://www.satoshi-celica.com/JAVA4/14/webgl14.html
gear ratio can be changed mechanically.

https://www.satoshi-celica.com/JAVA4/006/webgl006.html
E-assist is easy solution, but not for sports riding.

and, most important thing is set up for each person.
all dimensions should be re-considered.

thus, i cannot make specific comments for your case.
however, i FEEL you can ride some kind of bicicyle after rehab and training.

technically possible. but "who makes it?".... that is the problem...
hope it helps..

satoshi

Re: Oval-gear bike = leg assist

Posted: Tue Oct 18, 2022 8:46 am
by Mooselake
Thank you

Kirk

Re: Oval-gear bike = leg assist

Posted: Mon Oct 24, 2022 7:30 am
by BMeyers
Outstanding!