Vehicle power transmission device

A vehicle power transmission device comprising

• six transmission units for transmitting rotation of an input shaft connected to a drive source to an output shaft, the transmission units being arranged side by side in an axial direction between the input shaft and the output shaft,
• the transmission units each comprising
• an input side fulcrum that rotates eccentrically together with the input shaft,
• a one-way clutch that is connected to the output shaft,
• an output side fulcrum that is provided on an outer member of the one-way clutch, and
• a connecting rod that has opposite ends connected to the input side fulcrum and the output side fulcrum and moves back and forth,
• wherein when the six transmission units are defined as unit #1, unit #2, unit #3, unit #4, unit #5 and unit #6 in order from one end side in the axial direction toward the other end side, the phase of unit #6 relative to the phase of unit #1, the phase of unit #2 relative to the phase of unit #6, the phase of unit #4 relative to the phase of unit #2, the phase of unit #3 relative to the phase of unit #4, the phase of unit #5 relative to the phase of unit #3, and the phase of unit #1 relative to the phase of unit #5 are each displaced by 60° in the same direction.