Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Alt Bike Culture Chopped, dropped, stretched, lifted, and otherwise cut up and put back together. The art and science of choppers, cruisers, lowriders and the vast world of mutant bicycles.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 12-10-12, 09:12 PM   #1
enfnal
Junior Member
Thread Starter
 
Join Date: Dec 2012
Bikes:
Posts: 10
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Can human drive bike using both hands and feet? here is a video about that

This bike was made by my team.
I am an inventor of the combined drive bicycle and i invented it three years ago.
At the first made bike, i have confirmed that human can drive bike with hands and feet, however the critical parts of the bike were not precise enough, so that i designed the second trial bike with my team members.
This video is about the first complete hand&foot drive bike in the world.
Compare with any other hand and foot bike that inventors tried to accomplish the task.
Thank you and enjoy it

http://www.youtube.com/watch?v=1J4s7oIWWHQ
enfnal is offline   Reply With Quote
Old 12-10-12, 11:27 PM   #2
andychrist
Devil's Advocate
 
andychrist's Avatar
 
Join Date: Jan 2006
Location: NYC & Mid Hudson Valley, NY
Bikes: 1976 Fuji SRR, 2005 Fuji Del Rey, 2009 Mach 2, 2005 Bacchetta Giro 20
Posts: 274
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
I like that the hand mechanism and pedals can be operated both independently and in conjunction with each other. The only little design flaw I can see is that it seems the rider has to maintain a fairly upright position — this is not very aerodynamic. Maybe the same system could be applied to a recumbent bicycle for less drag without sacrificing any power?
andychrist is offline   Reply With Quote
Old 12-11-12, 01:03 AM   #3
Jeff Wills
Insane Bicycle Mechanic
 
Jeff Wills's Avatar
 
Join Date: Mar 2008
Location: other Vancouver
Bikes:
Posts: 8,063
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 71 Post(s)
I have seen several bikes pedaled by both hands and feet, both linked and independently. One is Fred Tatch's Manuped, built around 1978.
(Seen in the top right, here: http://www.velovision.com/mag/issue8...8-Stegmann.pdf )

Another is Jay Machamer's bike:

__________________
Jeff Wills

Comcast nuked my web page. It will return soon..
Jeff Wills is offline   Reply With Quote
Old 12-11-12, 05:49 AM   #4
andychrist
Devil's Advocate
 
andychrist's Avatar
 
Join Date: Jan 2006
Location: NYC & Mid Hudson Valley, NY
Bikes: 1976 Fuji SRR, 2005 Fuji Del Rey, 2009 Mach 2, 2005 Bacchetta Giro 20
Posts: 274
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by Jeff Wills View Post
I have seen several bikes pedaled by both hands and feet, both linked and independently.
From what I can make out of the video, this system does not employ an additional chain and ring for the hand input — the mechanism was not visible to me at all, suggesting perhaps an internal shaft drive? Would be interesting to combine this idea with that of MirageBike's Nomad.

Last edited by andychrist; 12-11-12 at 05:53 AM.
andychrist is offline   Reply With Quote
Old 12-11-12, 02:57 PM   #5
no1mad
Thunder Whisperer
 
no1mad's Avatar
 
Join Date: Apr 2008
Location: NE OK
Bikes: '06 Kona Smoke
Posts: 8,800
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 199 Post(s)
Moved from Adaptive Cycling.
no1mad is offline   Reply With Quote
Old 12-11-12, 08:10 PM   #6
Jeff Wills
Insane Bicycle Mechanic
 
Jeff Wills's Avatar
 
Join Date: Mar 2008
Location: other Vancouver
Bikes:
Posts: 8,063
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 71 Post(s)
Quote:
Originally Posted by andychrist View Post
From what I can make out of the video, this system does not employ an additional chain and ring for the hand input — the mechanism was not visible to me at all, suggesting perhaps an internal shaft drive? Would be interesting to combine this idea with that of MirageBike's Nomad.
Which one? Fred's or Jay's? (I didn't post any videos.)
__________________
Jeff Wills

Comcast nuked my web page. It will return soon..
Jeff Wills is offline   Reply With Quote
Old 12-11-12, 08:11 PM   #7
enfnal
Junior Member
Thread Starter
 
Join Date: Dec 2012
Bikes:
Posts: 10
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Weight shifting is an important control method in riding. Recumbent bike is very sensitive to control, it's drag is minimum among other bikes though.
The developed combined bike posted, use weight shifting more than other bikes. So i think the system could not be applied to the recumbent bike. It's not an experimental result, but from a theoritical thinking on my own. The upright position can be alternated by trimming the crank handle position. Thank you
enfnal is offline   Reply With Quote
Old 12-11-12, 09:43 PM   #8
andychrist
Devil's Advocate
 
andychrist's Avatar
 
Join Date: Jan 2006
Location: NYC & Mid Hudson Valley, NY
Bikes: 1976 Fuji SRR, 2005 Fuji Del Rey, 2009 Mach 2, 2005 Bacchetta Giro 20
Posts: 274
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by enfnal View Post
Weight shifting is an important control method in riding. Recumbent bike is very sensitive to control, it's drag is minimum among other bikes though.
The developed combined bike posted, use weight shifting more than other bikes. So i think the system could not be applied to the recumbent bike. It's not an experimental result, but from a theoritical thinking on my own. The upright position can be alternated by trimming the crank handle position. Thank you
Thanks for the explanation, that makes a lot of sense. Btw, could you tell us a little about how the hand crank integrates with the rest of the drive train, or is that top secret? Also, do you have plans to produce this bike or license your design for commercial production? Hope you have great success!
andychrist is offline   Reply With Quote
Old 12-12-12, 02:10 AM   #9
enfnal
Junior Member
Thread Starter
 
Join Date: Dec 2012
Bikes:
Posts: 10
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
To the new world of riding!!!

The integration of the system can be found at Patent US 2012/0104723 A1 -Combined-Drive bycycle
Yes, I have a plan to produce it as soon as possible, because i am anxious to presenting a pleasure of riding with this bike to everybody who wants to experience!
A few persons have experienced this bike including me and when it is told to the experience, the combined bike has a flavor of riding in controlling and powering the hand crank combined with feet pedal.
Although the scene that the bike climbs the hill was not included in the video, the climbing capability of the bike is excellent. I will lead the riders to the new world of riding, new generation of bike world!
License or other sort of cooperation would be welcomed.
enfnal is offline   Reply With Quote
Old 12-12-12, 10:38 PM   #10
Jeff Wills
Insane Bicycle Mechanic
 
Jeff Wills's Avatar
 
Join Date: Mar 2008
Location: other Vancouver
Bikes:
Posts: 8,063
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 71 Post(s)
Quote:
Originally Posted by enfnal View Post
The integration of the system can be found at Patent US 2012/0104723 A1 -Combined-Drive bycycle
Yes, I have a plan to produce it as soon as possible, because i am anxious to presenting a pleasure of riding with this bike to everybody who wants to experience!
A few persons have experienced this bike including me and when it is told to the experience, the combined bike has a flavor of riding in controlling and powering the hand crank combined with feet pedal.
Although the scene that the bike climbs the hill was not included in the video, the climbing capability of the bike is excellent. I will lead the riders to the new world of riding, new generation of bike world!
License or other sort of cooperation would be welcomed.
So you're trying to get funding or you want to license your system for production? I think the Bicycle Industry Related forum would be the proper place for this: http://www.bikeforums.net/forumdispl...dustry-Related
__________________
Jeff Wills

Comcast nuked my web page. It will return soon..
Jeff Wills is offline   Reply With Quote
Old 12-15-12, 09:53 AM   #11
Artkansas 
Pedaled too far.
 
Artkansas's Avatar
 
Join Date: Oct 2005
Location: La Petite Roche
Bikes:
Posts: 12,855
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
One thing I noticed is that the hand cranking makes the bicycle unstable and that there was a pronounced amount of wobble when pedaling with the arms.
__________________
"He who serves all, best serves himself" Jack London

Quote:
Originally Posted by Bjforrestal View Post
I don't care if you are on a unicycle, as long as you're not using a motor to get places you get props from me. We're here to support each other. Share ideas, and motivate one another to actually keep doing it.
Artkansas is offline   Reply With Quote
Old 12-15-12, 10:13 AM   #12
andychrist
Devil's Advocate
 
andychrist's Avatar
 
Join Date: Jan 2006
Location: NYC & Mid Hudson Valley, NY
Bikes: 1976 Fuji SRR, 2005 Fuji Del Rey, 2009 Mach 2, 2005 Bacchetta Giro 20
Posts: 274
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by enfnal View Post
The integration of the system can be found at Patent US 2012/0104723 A1 -Combined-Drive bycycle
.
There was something wrong with that link. Here is the correct one.
andychrist is offline   Reply With Quote
Old 12-16-12, 10:23 AM   #13
enfnal
Junior Member
Thread Starter
 
Join Date: Dec 2012
Bikes:
Posts: 10
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Bicycle wobbles naturally

Quote:
Originally Posted by Artkansas View Post
One thing I noticed is that the hand cranking makes the bicycle unstable and that there was a pronounced amount of wobble when pedaling with the arms.
Thanks for your comment.
As you can see the conventional bicycle driving, it wobbles a little because human rides it with two wheels.
Many people who have seen the video says the same comments and think it is unstable. However, it is just "it should be" because people judge only with what they have experienced. So i think the video is not enough to show the complete evidence of hand foot bicycle.
enfnal is offline   Reply With Quote
Old 12-16-12, 10:30 AM   #14
enfnal
Junior Member
Thread Starter
 
Join Date: Dec 2012
Bikes:
Posts: 10
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Jeff Wills View Post
So you're trying to get funding or you want to license your system for production? I think the Bicycle Industry Related forum would be the proper place for this: http://www.bikeforums.net/forumdispl...dustry-Related

Thank you Jeff.
But i can not enter the chamber and i don't know why
enfnal is offline   Reply With Quote
Old 12-16-12, 10:31 AM   #15
enfnal
Junior Member
Thread Starter
 
Join Date: Dec 2012
Bikes:
Posts: 10
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by andychrist View Post
There was something wrong with that link. Here is the correct one.
Thank you for your help
enfnal is offline   Reply With Quote
Old 12-16-12, 10:45 AM   #16
bhchdh 
Senior Member
 
bhchdh's Avatar
 
Join Date: May 2003
Location: Hampton Roads VA
Bikes: '07 Trek 520, '09 Gary Fisher Triton, '04 Trek 8000, '85 Trek 500, '84 Trek 610, '85 Trek 510
Posts: 1,758
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
While interesting and perhaps usefull for some, this seems to add a lot of complexity to an other wise simple machine.
__________________
"When I hear another express an opinion, which is not mine, I say to myself, He has a right to his opinion, as I to mine; why should I question it. His error does me no injury, and shall I become a Don Quixot to bring all men by force of argument, to one opinion? If a fact be misstated, it is probable he is gratified by a belief of it, and I have no right to deprive him of the gratification."

T. Jefferson
bhchdh is offline   Reply With Quote
Old 12-16-12, 04:36 PM   #17
Doug5150
Senior Member
 
Join Date: May 2005
Location: IL-USA
Bikes:
Posts: 1,729
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 29 Post(s)
Quote:
Originally Posted by enfnal View Post
Thank you Jeff.
But i can not enter the chamber and i don't know why
You probably must be a paid site member to access it.

-----

As far as the hand & foot bicycle goes, good luck and all but backyard experimenters have been rearranging basic bicycle parts for over a hundred years now.

It is very, very difficult to invent anything functional that has not been already tried.
Doug5150 is offline   Reply With Quote
Old 12-18-12, 07:13 AM   #18
enfnal
Junior Member
Thread Starter
 
Join Date: Dec 2012
Bikes:
Posts: 10
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Someone will like it but someone wouldn't. Functional improvement always involves some complexity however the structure is not so complex as we imagine.
enfnal is offline   Reply With Quote
Old 12-18-12, 07:24 AM   #19
enfnal
Junior Member
Thread Starter
 
Join Date: Dec 2012
Bikes:
Posts: 10
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Doug5150 View Post
You probably must be a paid site member to access it.

-----

As far as the hand & foot bicycle goes, good luck and all but backyard experimenters have been rearranging basic bicycle parts for over a hundred years now.

It is very, very difficult to invent anything functional that has not been already tried.
If skillful engineers have tried to invent such a bike, they have found out the secrets that i found, but they haven't needed to do that because there are a lot of things to do in mechanical engineering.
Only amateur inventors have tried to do.

Last edited by enfnal; 12-18-12 at 05:27 PM.
enfnal is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 08:48 PM.