| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a gate opening and closing device capable of automatically opening and closing a gate by simple equipment even an installation place without having waterworks facilities. <P>SOLUTION: The gate opening and closing device is equipped with a driving gas supply device 11 supplying a pressurized air and a crank type rotary driving device 20 rotationally driving an output axis rotationally driven by two opening and closing cylinders 14L and 14R by the pressurized air supplied from the gas supply device 11, it is also equipped with a gate opening and closing mechanism opening, closing and driving a slide gate through the output axis, and a pressure accumulating gas tank 32 is provided to the driving gas supply device 11. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
