Patent ID: 7104557
Filing Date: 2006-09-12
Classification: B62K

Abstract:
1. An electric vehicle with a pivoting structure design for folding and positioning a head tube, said electric vehicle comprising: a bottom of the head tube, which through a movable joint is assembled on the top of a top tube of the electric vehicle, enabling the head tube to revolve and fold by making the movable joint as a swivel pivot; a ratchet edge, which is in a circumferential design around the top of the top tube; a ratchet block, which is assembled at the bottom of the head tube and can be pulled up and down to engage with or detach from the ratchet edge; a transmission shaft is pivoted and located in an axially mounted slot of the head tube; wherein the transmission shaft can be shifted upward and downward, driven through the connection between the bottom of the head tube and the top of the ratchet block, and the top of the transmission shaft can be stretched upward to a predefined height; a positioning component, through forcing the transmission shaft to shift downward, enables the engaging between the ratchet edge and the ratchet block; and an elastic component, which can push upward the transmission shaft when the positioning component is in release state, and consequently enables the detachment of the ratchet edge from the ratchet block.