| 摘要 |
<p>An electric engine starter (100) in which downsizing and weight saving are improved to an extreme based on the rational design and by eliminating an unnecessary unit, wherein a battery is arranged outside the starter, a power accumulating unit (110) has a rotation supporting unit (112, 212) for supporting one end of a spring (111, 211), a first gear is formed on the rotation supporting unit (112, 212), a second gear (132b) is fixed to an output shaft (133) of a high-speed reduction gear mechanism (132), the first and the second gears (113, 213; 132b) are engaged with each other, the power accumulating unit (110) and the power transmission unit (120) are arranged on the same first axis line, the compact electric motor (131) and the high-speed reduction gear mechanism (132) are arranged on the same second axis line parallel to the first axis line, and the first axis line and the second axis line are arranged on the same plane surface.
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