Spring energy to rotational energy

[0904919H]

How do i convert spring energy to rotational energy? I am building a 'green device' that allows a bicycle to move forward using stored energy (compressed spring energy). So i am figuring out how do i change the spring energy stored to rotational energy so that th bike will be able to propel forward.

Appreciate if you guys help! Thx!

 

[nasu]

How is this a "green device"? What kind of energy is used to compress the spring initially?

Regarding the conversion to rotation motion, the mechanism in a spring toy can do this.

 

[0904919H]

It's something like a bicycle, just that you don't have to pedal as much to move a longer distance. As u press down the pedal, it compresses the spring storing the energy until you release the pedal, there will be two of these of course, meaning two pedals. It's a green concept though, but if you have any good ideas to improvise this design i would appreciate your help!

Thanks!

 

[Drakkith]

It's something like a bicycle, just that you don't have to pedal as much to move a longer distance. As u press down the pedal, it compresses the spring storing the energy until you release the pedal, there will be two of these of course, meaning two pedals. It's a green concept though, but if you have any good ideas to improvise this design i would appreciate your help!

Thanks!

You realize that it will take extra energy from the rider to compress the spring to begin with right? I don't see how this will be easier than just riding a bike. Care to elaborate?

 

[pergradus]

yea, you're not gaining anything with that kind of design.

 

[0904919H]

I'm thinking like have a bigger gear turn a smaller gear when u compress the spring, so that the force will lessen, also thinking of ways to lessen the force used so that u can travel a longer distance...still have to think 'green'. Do you guys have any ideas that i might be able to implement?

 

[Drakkith]

I'm thinking like have a bigger gear turn a smaller gear when u compress the spring, so that the force will lessen, also thinking of ways to lessen the force used so that u can travel a longer distance...still have to think 'green'. Do you guys have any ideas that i might be able to implement?

You are substituting time for reduced force necessary to compress the spring. In the end the work done is the same.

 

[cjl]

My guess is that it would end up less efficient than a regular bicycle. A straight chain drive is fairly efficient, and some kind of a spring setup would probably end up with the rider expending more energy for the same final result (as compared to the straight chain drive).

 

[0904919H]

Hmmm, alright guys, thanks! I will take that into consideration, feel free to give your suggestions here...its most appreciated!