초록 ▼

A vertical pedal-operated vehicle can be driven directly by a driver's own weight. To operate such a vehicle, a driver is supposed to apply his/her own weight to the vehicle by treading his/her left and right foot alternately on a pair of pedals such that the rotation torque can be transmitted throu

A vertical pedal-operated vehicle can be driven directly by a driver's own weight. To operate such a vehicle, a driver is supposed to apply his/her own weight to the vehicle by treading his/her left and right foot alternately on a pair of pedals such that the rotation torque can be transmitted through a pair of ratchet-typed freewheels with one-way clutch, a driving shaft, then a transmission mechanism to reach at least a rear wheel for driving the vehicle forwards without needing any extra labors, such that a relaxative physical exercise is performable unknowingly. Furthermore, it is possible to make the vertical pedal-operated vehicle compact or foldable for being stuffed and stored in a car's rear baggage compartment for easy delivery.

대표청구항 ▼

1. A vertical pedal-operated vehicle, comprising: a frame having a handlebar and a central frame member disposed thereon; at least two wheels; a pair of sliding link sets having two quadric chains, four pedal-supporting slide levers and four sets of pulley assembly; a transmission mechanism in

1. A vertical pedal-operated vehicle, comprising: a frame having a handlebar and a central frame member disposed thereon; at least two wheels; a pair of sliding link sets having two quadric chains, four pedal-supporting slide levers and four sets of pulley assembly; a transmission mechanism including a main driving gear, an idler gear, and a driven pinion; a front wheel is provided under the handlebar; at least one rear wheel is arranged at a rear end of the frame; two pedals disposed on the central frame member and the bottom end of each pedal are connected with a rack and two of the four pedal-supporting slide levers respectively, in which a front and a rear pedal-supporting slide lever are further connected to the quadric chain to form the slide-linking set; each rack under the pedal is engaged with a corresponding ratcheted freewheel with one-way clutch, and those two ratcheted freewheels with one-way clutch are located on two sides of the main driving gear individually and connected to a main driving shaft; and the main driving gear is engaged with the idler gear, which is then meshed with a driven pinion to thus form the transmission mechanism capable of transmitting torque to the rear wheel for driving the vertical pedal-operated vehicle forwards. 2. The vehicle as recited in claim 1, in which the pedal-supporting slide levers jointed with the pedals are penetrated through the pulley assembly fixed on side walls of the frame to form a pair of sliding link sets for the pedals to move up and down stably by taking advantage of the associated quadric chains. 3. The vehicle as recited in claim 1, in which the main driving gear and the driven pinion comprises a driving sprocket wheel and a driven sprocket wheel respectively, and the idler gear comprises a chain.