| 摘要 |
PROBLEM TO BE SOLVED: To provide a piston structure of an engine, which inhibits a piston, a piston pin and the small end of a connecting rod from integrally resonating with the large end of the connecting rod in a combustion stroke, suppress increase of noises in the other strokes, and restrain a dynamic vibration absorber in the inside of the piston pin from being unfixed and falling out to ensure a retaining function.SOLUTION: A piston structure of an engine comprises a fixation part 20a at which a dynamic vibration absorber 20 is fixed to a piston pin 2, a movable part 20b extending in an axial direction of the piston pin 2, and a support part 20c supporting the movable part 20b oscillatably to the fixation part 20a, and is equipped with a restraint means 30, 31 for mechanically restraining an axial movement of the dynamic vibration absorber 20. |
