SCATEBOARD-LIKE BICYCLE WITH RATCHET-TYPE DRIVING ARM

摘要

Novelty: a skateboard equipped with an adjustable seat for being used as a bicycle is disclosed. Constitution: the pedal 8 connected to the driving arms 7 ending with a ratchet-type mechanism so that moving up and down by feet said arms give rotary motion to the front toothed gear 5 while the rear toothed gear 14 is being rotated via the roller chain 13 to set into motion the wheel.