Towa Corporation

Hitachi, Ltd.

Akiyuki Harada

Takayuki Sakamoto

Kouji Yoshida

Masataka Takehara

Mitsuru Ohi

Takayuki Kai

Hiroki Oogi

Koji Sasao

Kouichi Shinmura

Kazuhiro Tutui

Shinichi Tatemichi

Shinji Harada

The pressing method includes the first step of displacing a sub-piston provided within a sub-cylinder from its initial position to press working fluid such that the working fluid is introduced via a check valve into a main cylinder to displace a main piston 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.

Pressing method, pressing mechanism and resin molding device

Growing community of inventors

Kyoto, Japan

Akiyuki Harada