To miniaturize a power device which combines an engine with a reciprocating-type continuously variable transmission.
A crank shaft 14 of an engine E and an output shaft 15 of the continuously variable transmission T are arranged in parallel. Connecting rod 13 and the output shaft 15 are connected via first two-pairing-elements joint L1, second two-pairing-elements joint L2, three-pairing-elements joint L3, and a one-way clutch 16. By changing the length of at least one joint of three joints of the three-pairing-elements joint L3 by a gear ratio change means V or by changing a fixed position of a third turning pair P3, the rotational motion of the crank shaft 14 can be converted by a gear change into an intermittent rotational motion of the output shaft 15. Because the axis of the engine E and that of the continuously variable transmission T can be arranged in parallel, dimension in the axial direction of the power device can be miniaturized and in addition, an input shaft of the continuously variable transmission T becomes unnecessary so that dimension in the direction perpendicular to the shaft of the power device can be miniaturized.
OZAWA HIDETAKA
Kazuaki Niki
Nude Shima Shinji