| 摘要 |
<p>An injection molding machine includes an injection chamber unit (8,8') with a horizontal channel (81), a vertical channel (82), and a transitioning passage (83,84) interconnecting the horizontal and vertical channels (81,82). The transitioning passage (83,84) has an innermost turning side (833,845) and an opposite outermost turning side (834,846) longer than the innermost turning side (833,845). The transitioning passage (83,84) includes at least two turning corners (837,838,843,844) of obtuse angle at the outermost turning side (834,846) and adjacent to the horizontal channel (81) and the vertical channel (82), respectively. The transitioning passage (83,84) further includes a tapered passage section (835,841) which tapers toward the vertical channel (82), and a wall part (834a,846a) which partially confines the tapered passage section (835,841) at the outermost turning side (834,846). The wall part (834a,846a) has a shape conforming to a segment of a truncated cone-shaped face which extends angularly by an angle of less than 360 degrees. <IMAGE></p> |
