| 摘要 |
PROBLEM TO BE SOLVED: To provide a device capable of simultaneously opening/closing or designatively setting to open/close multiple windows of a building with the multiple windows by an opening/closing valve provided in a single place. SOLUTION: A control valve is provided as an opening/closing operation device and cylinders for opening/closing are provided for every windows necessary for the opening/closing. Compressed air is taken in the control valve and made to pass from ports 12, etc., selected (opened) by input ports 15, etc., of rotors 17, etc., through connecting pipes 7, etc., and the compressed air forcedly sent out from ports 5, etc., of the cylinders 1, etc., moves pistons P, etc., shafts 2, etc., and fixed flanges 3 so as to open the window. When closing the window, all the operation is worked reverse by the operation of (closing) the input ports 15, etc., and selecting ports 13, etc., so as to close the windows. The opening/ closing cylinders are provided for every multiple windows necessary for the opening/closing so as to simultaneously open/close the windows by a single operation. |
