| 摘要 |
PURPOSE:To simplify structure of an engine unit by axially supporting an intermediate gear which engages with an output gear of a bracket axle on an output axis, and by stamping a time adjustment gear for driving a valve system cam shaft at a boss portion of the intermediate gear. CONSTITUTION:An intermediate gear 9 which engages with an output gear 11 of a bracket axle is axially supported on an axis 8, and a toothed plate portion 9a is attached loose to a flange portion 8a of an output axis 8 through a rivet 14. A time adjustment gear 12 for driving a valve system cam shaft is stamped at a boss portion 9b of the intermediate gear 9 as one. Thereby, structure of an engine output system and a valve system driving system can be simplified. |
