Patent WO-2019054693-A1 (WO)
Title: Driving unit for traveling, using freewheels, and apparatus for traveling, including same
Inventor: KIM RI HAN
IPC: B62M1/30
Filed: 2018-09-05
Abstract: The present invention relates to a driving unit for traveling, using freewheels, and an apparatus for traveling, including the same, and the objective of the present invention is to particularly facilitate uphill traveling by continuously rotating a driving wheel only by means of the vertically and alternatingly reciprocating press operations of foot plate members (a pair of pedals of a bicycle and the deck of a scooter) and by outputting great propelling power even though less power is used, and to produce products by freely changing the positions of the pedals and the position and connection relationship of freewheels. According to the present invention, the driving unit for traveling, using the freewheels, comprises: first and second lever-type driving rods, which are aligned along the longitudinal direction of the apparatus for traveling, have each one side connected to first and second pedals, and vertically reciprocate and rotate within a predetermined angle by means of the pressing operations of the first and second pedals; first and second indirect transmission wheels connected to the other sides of the first and second lever-type driving rods and driven by means of the first and second lever-type driving rods; first and second freewheels, which vertically reciprocate and rotate by receiving rotating power from the first and second indirect transmission wheels, and generate the rotating power when the first and second lever-type driving rods are lowered and maintain a free state when the driving rods are raised; and a driving wheel for continuously rotating in the forward direction by means of vertically reciprocating rotational movements, which are alternately repeated, of the first and second freewheels, and driving the driving wheel of the apparatus for traveling by means of a power transmission means, and is an indirect pedal-driving type in which the first and second pedals are spaced from the first and second indirect transmission wheels by means of the first and second lever-type driving rods, and the pushing power of the first and second lever-type driving rods is indirectly transmitted to the first and second freewheels, by means of the first and second indirect transmission wheels. The present invention can also be a direct pedal-driving type in which the first and second lever-type driving rods are directly connected to the first and second freewheels. According to the present invention, the driving unit for traveling, using the freewheel comprises: the first and second freewheels coaxially connected to the bottom parts of seesawing foot plates, and alternately and vertically reciprocating and rotating by means of the pressing operations of the front and rear of the foot plates; the driving wheel, which rotates in the forward direction by alternately receiving the vertically reciprocating rotational movements of the first and second freewheels, and transmits the rotating power to the driving wheel through the power transmission means so as to drive the same; a first rotating body formed coaxially with the driving wheel and directly connected to the first freewheel; and a second rotating body formed coaxially with the driving wheel and indirectly connected to the second freewheel by means of a power transmission member, and is a direct board-driving type in which a seesaw motion of the foot plates is directly transmitted to the first and second freewheels.