| 摘要 |
PURPOSE: An arm device to set a variable regular position for an electric tool work is provided to be operated to maintain the electric tool in a stopping state of a standby state at a desired position and to minimize the fatigue of the operators. CONSTITUTION: An arm device (300) to set a variable regular position for an electric tool work comprises a body, a handle for controlling air pressure, a screw rod, and an air pressure control plate. An air exhausting unit is formed in a right side of the lower end of an auto valve installation space which is an opposite side of an auto valve operating unit blocked by a dividing unit. An air induction path of an input side inducing the inputted air is formed inside the body between an air supply unit and the auto valve operating unit. [Reference numerals] (AA) Machine tool |
