Patent ID: 8307727

Claim:
A reciprocating rotary power transforming apparatus comprising: a reciprocating rotary member receiving or outputting a reciprocating rotary motion; at least one uni-directional rotary member receiving or outputting a uni-directional rotary motion and including a tilted shaft arm on one side; a housing being disposed so that the reciprocating rotary member and the uni-directional rotary member may be orthogonal to each other on the same plane and being supported to un-restrict rotation; and a motion transforming unit being connected to the reciprocating rotary member and being constructed to perform transformation between the reciprocating rotary motion and the uni-directional rotary motion by a conical rotary motion and a twisting motion when power is transferred to the reciprocating rotary member or to the uni-directional rotary member, wherein the motion transforming unit comprises: a guide member including a hole formed on a central portion thereof to which a secondary rotary axle extends, the guide member including a hollow portion inside; a cover being coupled with a top surface of the guide member and including a protruded first rotary axle to be rotatably supported by the housing; a crank pin being inserted into the hollow portion of the guide member to rotate when the guide member reciprocates, wherein both ends of the crank pin are coupled with the uni-directional rotary member through first and second tilted shaft arms, which are integrally formed with the crank pin; and a pair of guide bearings having a cylindrical shaped surface to be coupled with the crank pin and a flat surface to be coupled with the guide member, the pair of the guide bearings being coupled with the second rotary axle via the hole to perform rotary twisting motion.