| 摘要 |
PURPOSE: A vacuum wing body is provided to obtain a vacuum pressure cylinder capable of cutting down expenses and simplifying the constitution. CONSTITUTION: In a vacuum wing body, a vacuum pressure-charging tank is installed to a pressure transfer pipe-intermediate line leading to a hydraulic cylinder from a vacuum pump. Pressure transfer lines are each installed to a left wing-pneumatic cylinder(7), a right wing-pneumatic cylinder(9), and front and rear ascending pneumatic cylinders(11,13) from the charging tank. Solenoid pressure-switching over valves are installed to each cylinder. The right and left wing-pneumatic cylinders are installed to a front middle horizontal post(22). Wings are opened and shut by supplying vacuum pressure of the vacuum pressure-charging tank to suction ports and exhaust ports of the right and left wing-pneumatic cylinders and expanding or loosening cylinder rods.
|
