| 摘要 |
PURPOSE: A pressing method, a pressing mechanism and a resin molding device are provided to alleviate the variation in the way of pressing an object, prevent the contamination due to the working fluid and downsize the pressing mechanism. CONSTITUTION: A pressing method includes the first step of displacing a sub-piston(10,15) provided within a sub-cylinder(4,13) from its initial position to press working fluid(1) such that the working fluid is introduced via a check valve(5) into a main cylinder(6) to displace a main piston(18) provided therein, and the second step of causing the sub-piston to return to the initial position such that the working fluid is supplied to the sub-cylinder. The first and second steps are repeated successively until the working fluid in the main cylinder attains a prescribed pressure level. With this method, variation in the way of pressing an object is alleviated, contamination due to the working fluid is prevented, and downsizing of the pressing mechanism is enabled.
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