| Author | Message | ||
     edc (Unregistered Guest) |
Post ideas, images, and research here. help/instructions on posting images, etc. | ||
| from Kent (Unregistered Guest) |
http://www.cateye.com/en/products/viewProduct.php?modelId=37&catId=8&subCatId=0 http://www.tacx.nl/flash_content/main.html?language=en&bandwidth=high http://www.blackburndesign.com/trainers.html http://www.minoura.jp/trainer-e2.html http://www.cycle-ops.com/ http://www.kreitler.com/product.php?pg=product | ||
| John Boosinger (Unregistered Guest) |
We in the shell group had a thought for the bike connections. instead of a bike stabilizing via its axle, take a look at burley's connection for its trailers. It is a wedge that fits all traditional and some unusal frame types and comes on and off in seconds without tools. It wedges into the frame corner right in front of the rear axle. image link below. John B. P.S. Stop by the shop in Pacific room 1-- I have lots of scraps to play with, and I love to talk design. http://www.greenspeed.com.au/Stand.%20Hitch%20768.jpg | ||
| (Unregistered Guest) |
Burley's fone number is 541-687-1644, there are two engineers in RD that might be able to kick down some of these parts, 1: Patrick Logan, 2: Jan Sing, or there is another person 3: Werner Lots - though I'm not sure what he does - he also might be able to help... The hitch connecters are pretty nice, though they were designed to allow the bike to tip over without tiping the trailer, exactly what we are trying to prevent. This aspect could easily be worked around by milling off the two tabs on the side of the device and attaching it to a rigid component that would in turn be attached to the larger bike connection assembly. The two things that need to be done are 1. capture the rotational energy of the rider by placing the rear wheel in a cone shaped roller or a set of rollers, and 2. keep the bicycle stable so the rider doesn't tip over while pedaling. I see this as two degree's of freedom. Placing the rear wheel in a set of coned rollers takes away the bikes freedom to move forward or backward but the bike can still tip. The tipping motion can be taken away with using either the axle stabalizing mechanism you see in most of the stationary trainers above, or using the Burley molded hitches, or, and I like this one the best simply attach a sturdy nylon ribbon to the seat tube and run equal lengths in a triangular path back to the larger trailer structure. If the bike tips left the rear right ribbon tensions, if the bike tips right the rear left ribbon tensions. I would like to mock up a couple solutions and see which one worked best. The ribbon idea is actualy in one of the pictures in the packet. I talked to someone in the electrical group and he said that each bike would have it's own generator. So, now we don't have to work a transmission system into the bike connection design. The generator will probably be directly attached to one of the rollers. | ||
| (Unregistered Guest) |
Here's the larger picture of the one in the packet I talked about in the last post - http://www.kjcoop.org/~bart/barts%20ccat%20pedal%20power%20web%20pgs/frames_text _multiple_bicycle_gen.html | ||
| Dani (Unregistered Guest) |
Would you guys keep us (in the frame group) in the loop about what you come up with? We need to know what type of/how many/how big the connections are going to be to be able to design the frame/trailer. Also, I thought that by "connections," that means you are to figure out how the bikes (that generate power) CONNECT to the part that goes to the battery. Because we in the frame group have been discussion how to connect the frame to the bike (that transports the frame). If I understood correctly, this is what Martha said we should be working on. It might be a good idea to get some clarification on it. | ||
| phil (Unregistered Guest) |
i believe we were thinking about something like a max of 8 bikes. we were originally thinking that these would be oriented parallel to the frame, but the shell group was assuming they would be perpendicular, which probably makes more sense. as far as i know, though, we're not worrying about the connection to the towing bike. the hitches are to keep the power generating bikes from falling over. | ||
| kent via phil (Unregistered Guest) |
Attached is a pedibar I was given a picture of. It's not completely pertinent but it is cool.  | ||
| Noah Jack (Unregistered Guest) |
I'm in the frame group but I just wanted to let you guys know that I work at Paul's bike shop and I'm interested in helping with the connection part as well. If anyone in the connections group has specific questions about what parts are available or other bike/parts related questions that I might be able to help with you can post them or email me at emailnoahjack@yahoo.com. |