| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a chain saw which does not waste lubrication oil.SOLUTION: A chain saw includes: a saw chain which rotates while contacting with a guide bar; a lubrication oil supply part 9 which supplies lubrication oil to the saw chain; detection means 10 which detects cutting operation where the saw chain is rotated to cut a cutting object; and a lubrication oil control command part 11 which outputs a supply command signal to the lubrication oil supply part 9 on the basis of a detection signal of the detection means 10 so as to cause the lubrication oil supply part 9 to supply the lubrication oil to the saw chain.</p> |
