| 摘要 |
PCT No. PCT/JP85/00511 Sec. 371 Date May 7, 1986 Sec. 102(e) Date May 7, 1986 PCT Filed Sep. 12, 1985 PCT Pub. No. WO86/01768 PCT Pub. Date Mar. 27, 1986.In a nozzle touch mechanism for urging a nozzle (3) of an injection unit (1) against a mold (4), the mechanism urges and holds the nozzle (3) against the mold (4) through a simple structure. The threaded portion (11a) of the ball screw (11) of the mechanism is engaged with a ball nut (13) fixed to a pressure plate (12) for moving the injection unit (1) through springs (15a, 15b). When a predetermined flexure of the springs (15a, 15b) is generated to urge the nozzle (3) against the mold (4) with an appropriate urging force, the threaded portion (11a) is disengaged from the ball nut (13) at that point. The threaded portion (11a) holds the injection unit (1) at this position and urges and holds the nozzle (3) against the mold (4) by the flexure of the springs (15a, 15b).
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