| 摘要 |
Protective device pertaining to such saw bars for chain saws which are slidably movable under the influence of a hydraulic piston 15 in relation to a mounting plate 11 joined to the motor unit, comprising a pin 18 which juts from an oil chamber 23, which is pressurized whenever the chain saw is in operation, into a recess 19 in the saw bar or an intermediate piece joined to the saw bar. <IMAGE> |
