| 摘要 |
<p>The motor chain saw (1) has a drive motor (2) which drives the saw chain (19). A feed pump is driven by pump drive, to supply oil to saw chain. The drive wheels of drive element (40) are attached to chain wheel (16) and feed pump. The drive element is provided with coupling portion for coupling drive element and chain wheel. The driver surfaces of drivers of coupling portion are attached with respective chain wheel.</p> |
