| 摘要 |
PURPOSE:To absorb and hold a retainer to be assembled with a vacuum adsorption action so as to secure the certain assembly so as to prevent the drawback of the retainer at the time of the return of a main body, by providing an absorbing surface and suction port on the end of a hollow main body. CONSTITUTION:A retainer 11 to be assembled is absorbed and held on an absorbing surface and a main body 14 is shifted to a shaft 3 so that the retainer 11 is inserted to the shaft 3. In this case, the shaft 3 presses the cotter 12 inside the retainer 11 so that a pressing bar 33 is fitted in the cotter 12. Thereafter, the retainer 11 and cotter 12 are inserted in the shaft 3. At the time when the retainer 11 and cotter 12 pass through the engaging groove of the shaft 3, the absorption is stopped and the main body 14 is returned to the original position. Thereby, the retainer 11 acts in such a way as fastening the shaft 3 with the action of a pressing cylinder 30 and compression spring 5. Owing to this constitution, the retainer 11 can be certainly assembled and the drawback of the retainer can be prevented. |
