This doesn't answer the most burning question I have, which is why the wind-up gear has the spiral around the shaft...
How does a pull-back car work? Illustrated teardown
31–40 of 43 posts
Re: How does a pull-back car work? Illustrated teardown
#32This doesn't answer the most burning question I have, which is why the wind-up gear has the spiral around the shaft...
They used to paint flames there, but wanted to appease the spiral god instead
Re: How does a pull-back car work? Illustrated teardown
#33Why is the wind-up gear needed? Couldn't the axle be connected directly to the spring gear?
dampens the force somewhat and ensures the car doesnt burnout all the energy at the beginning?
Re: How does a pull-back car work? Illustrated teardown
#34What is the name for the sort of toy car you push in one direction and it continues slowly in that direction? These ones were usually styled as 4x4 vehicles and almost moved like a rock crawler with the 4wd set to low. They could be pushed forward or in reverse (and then would go in reverse).
Well, you could get it up to higher speeds by holding the car in your hand and repeating the "pushing" action several times...
Re: How does a pull-back car work? Illustrated teardown
#35Cool, I'm surprised they are a relatively newer invention (70's)
Of course they were bound to be surpassed by electrical cars with remote controls ;)
Looks like history rhymes
Re: How does a pull-back car work? Illustrated teardown
#36It would be great if this was just a model running in a physics engine.
Re: How does a pull-back car work? Illustrated teardown
#37What is the name for the sort of toy car you push in one direction and it continues slowly in that direction? These ones were usually styled as 4x4 vehicles and almost moved like a rock crawler with the 4wd set to low. They could be pushed forward or in reverse (and then would go in reverse).
Are you talking about https://en.wikipedia.org/wiki/Friction_motor ?
That also shows why the confusion in https://www.youtube.com/watch?v=kY2YeM5fNDw comes from.
Re: How does a pull-back car work? Illustrated teardown
#38Fascinating animation.
But there is one thing I don't understand. What is the purpose of the left axle gear (green)? It is not fixed to the axle because it rotates in the same direction in both modes. Wouldn't is be more efficient to connect the wind-up gear directly to the right axle gear (blue) and through pushing to the left spring gear (red)?
Re: How does a pull-back car work? Illustrated teardown
#39Oh, is that why when you "overwound" it it would make that rapid ticking sound? The outer end of the spring is falling into the next little slot, huh. Fascinating stuff.
Yeah, good to know you are not just damaging it!
Re: How does a pull-back car work? Illustrated teardown
#40One of my favorite website ever. Delight as always.