| 摘要 |
The present invention is to be installed in an air tool which comprises: an air supply unit; an opening and closing control unit for controlling supply or blockage of air flowing in through the air supply unit; and a valve body for connecting a driver unit and the air supply unit to supply air controlled by the opening and closing control unit. The present invention in a valve for supplying or blocking air to the driver unit by the opening and closing control unit inside the valve body rotating with respect to a rotary shaft comprises: a disc-shaped elastic opening and closing member having a pair of air inlet holes; a disc-shaped molding coupling unit which is coupled inside the elastic opening and closing member and has a pair of inlet hole dent units which are inwardly dent corresponding to the pair of air inlet holes; and a coupling shaft which is protruding along the rotary shaft and being coupled with the valve body. Therefore, the present invention is capable of preventing separation the elastic opening and closing member from the molding coupling unit under high-pressure air atmosphere by increasing the contact area between the molding coupling unit and the elastic opening and closing unit. |
