New gearbox design?
Was riding today when i thought about this idea for a mountainbike gearbox. It uses a cassette and a gear, but instead of a derailleur the upper gear(middle axle) moves along a splined axle to shift. The power flow would go through the pedal input->cassette->chain->upper gear->belt drive->output axle->output gear. Output axle is attached to emotor.
My goal with this design is to:
make a design that isnt as heavy as the pinion gearboxes,
has the motor connected directly to the rear wheel without a ratchet(the ratchet would be between somehere between the middle axle and the output axle), thereby allowing for regenerative braking or slowing down with the motor reducing brakepad wear on long decents.
Moving the weight to the center
Belt drive to the rear wheel
Fully enclosed to protect from debri and allowing oil bath
Feel free to comment if youve seen a similar solution somewhere else or if you have any thoughts about this
Sorry for the ugly drawing, i dont have my usual technical drawing setup since im not at uni atm.