公开(公告)号：US07303719B2

公开(公告)日：2007-12-04

申请号：US10758116

申请日：2004-01-16

申请人： Kiyofumi Hiroi ,  Hideo Fujiwara ,  Hidehisa Matsuo ,  Yasuhiro Yao

发明人： Kiyofumi Hiroi ,  Hideo Fujiwara ,  Hidehisa Matsuo ,  Yasuhiro Yao

IPC分类号： B29C45/56 ,  B29C45/57

CPC分类号： B29C45/572 ,  B29C45/561 ,  B29L2015/003 ,  Y10T428/218 ,  Y10T428/219

摘要： A disk-shape resin molded article such as a gear comprises a rim, a boss, a web having a disk configuration for connecting the rim and the boss, and gear teeth formed on the rim. The molded article is produced by an injection-compression molding process which comprises injecting a molten resin into a cavity of a metal mold, and pressing a web site and at least one site selected from the group consisting of a boss site and a rim site in a thickness direction. The cavity may have a capacity larger than the solidified products by contraction amount of the injected molten resin.

摘要翻译： 诸如齿轮的盘形树脂模塑制品包括轮辋，凸台，具有用于连接轮辋和凸台的盘构造的腹板和形成在轮辋上的齿轮齿。 模制品通过注射压缩模制方法制造，该方法包括将熔融树脂注入到金属模具的空腔中，并且将网站和至少一个选自凸台部位和边缘部位的部位 厚度方向。 通过注入的熔融树脂的收缩量，空腔可以具有比固化产物大的能力。