| 摘要 |
PROBLEM TO BE SOLVED: To use a synthesized drive force of a plurality of motors as a drive source of a single injection unit. SOLUTION: In order to fix a first slave pulley 21 on which a first drive transmission belt 22 is stretched, a second slave pulley 26 on which a third drive transmission belt 27 is stretched and a master pulley 20 on which second and fourth drive transmission belts 23 and 28 are stretched to base ends of rotary shafts 13a, 14a and 15a of respective injection drive motors 13, 14 and 15, the master injection drive motor 13 and the first slave injection drive motor 14 both arranged on the same plane, among the three injection drive motors 13, 14 and 15 parallel fixed to the rear side fixing frame 16 are forward/backward shifted from the second slave injection drive motor 15. By this, the pulleys 20, 21 and 26 on which the drive transmission belts are stretched can be fixed to the base ends of the respective rotary shafts 13a, 14a and 15a. COPYRIGHT: (C)2011,JPO&INPIT
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