| 摘要 |
An engine unit comprising a crankshaft (60) that is placed in an approximately lateral direction of a vehicle in which the engine unit is mounted; an output shaft (73) that is placed parallel to the crankshaft (60) and that outputs drive to a driving wheel via a sprocket (76) provided at one end in the lateral direction; a main shaft section (72) that is aligned parallel to the output shaft (73), rotates by means of rotation power transferred from the crankshaft (60) and provides output to the output shaft (73) via a transmission gear mechanism (82,84,86,721,722,732); a clutch (75) that connects and disconnects the rotation power transferred from the crankshaft (60) to the main shaft section (72); and a drive unit case (920) in which the crankshaft (60), the main shaft section (72), the transmission gear mechanism (82,84,86,721,722,732) and the output shaft (73) are provided in a rotatable fashion, wherein the main shaft section (72) is provided in the drive unit case (920) such that one end (72a) of the main shaft section (72) projects from the drive unit case (920) toward the one end of the output shaft (73), beyond the one end of the output shaft (73); and the clutch (75) is detachably connected to the one end (72a) of the main shaft section (72) in a position to overlap with at least part of the sprocket (76) axially sideways with respect to the output shaft (73).
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