| 摘要 |
<p>A chain saw has a body in which a stratified scavenging 2-cycle engine for driving a saw chain is laterally housed and a top handle provided above the body. In other words, by laterally disposing the engine, an air port can be installed upward to a cylinder, and an air quantity adjusting device for feeding scavenging air to the air port and the carburetor can be well housed in the top handle. Accordingly, there is no need to separately prepare a space for installing the air quantity adjusting device, so that miniaturization can be achieved.</p> |
