Chain saw

(Amendments Included) SUBJECT of the Invention It suppresses that oil flows into the outer surface of the oil tank located in the motor side. PROBLEM to be solved A chain saw is provided with the housing which has the 1st space where the motor made to rotate a saw chain， the oil tank 60 which stores the oil supplied to a saw chain， and a motor and the oil tank 60 are arrange|positioned. A housing has a through-hole which connects 1st space and the exterior of a housing， The oil tank 60 is provided with the oil-tank main body 62 which stores oil in an inside， the oil supply part 64 for the through-hole having penetrated， having exposed to the exterior of a housing， and supplying the inside of the oil-tank main body 62 in oil， and the suppression structure 66， When a chain saw is mounted in a mounting surface so that the suppression structure 66 may be arrange|positioned rather than the oil supply part 64 at the motor side and the oil supply part 64 may be suitable above a perpendicular direction， It suppresses that the oil on the 1st outer surface 62a of the oil-tank main body 62 which is suitable above the perpendicular direction flows into the motor side. SELECTED DRAWINGS FIG. 4 [MAT_IMAGE 000002]