| 摘要 |
PURPOSE:To improve operation reliability, by a method wherein, in a feeding mediating device for pressure air engaged with a rotary shaft, a pressure air is reliably fed to a rotary device which is rotated at a high speed, and the supply of a pressure air is automatically controllable through sensing of leakage of the pressure air. CONSTITUTION:A feed medium device 6, which is connected on the left end side to a primer mover and on the right end side to an air clutch and is engaged with a rotary shaft 5, is provided with a cylindrical stationary body 7 which is relatively rotatable on the rotary shaft 5 and a cylindrical rotary boby 8 which can not relatively rotate on the rotary shaft. A pressure air inlet 19 is radially formed in the cylindrical stationary body 7, and a pressure air from the inlet 19 is guided to a flow passage 25c in the rear of the rotary body 8 through an annular inner peripheral groove 21 in the stationary body 7, a flow passage 25a formed at the front of the rotary body 8 engaged with the stationary body 7 and a flow passage 25b between the rotary body 8 and the rotary shaft 5. The flow passage 25c is connected to an outlet 29 through a communicating chamber 30 and a retainer chamber 28, and the supply of the pressure air is controlled through movement of a moving body 36 occasioned by a decrease in a pressure in the retainer chamber 28. |
