公开(公告)号：US06231805B1

公开(公告)日：2001-05-15

申请号：US09309893

申请日：1999-05-11

申请人： Takashi Yairo ,  Takashi Morimoto ,  Sunao Yamasaki ,  Atsushi Honjo

发明人： Takashi Yairo ,  Takashi Morimoto ,  Sunao Yamasaki ,  Atsushi Honjo

IPC分类号： B29C4522

CPC分类号： B29C45/2806 ,  B29C45/1704 ,  B29C45/174 ,  B29C2045/2683 ,  B29C2045/2691

摘要： There is provided a molding method for performing injection molding by using a multi-cavity hot-runner mold having a plurality of valve gates, wherein a proper holding pressure and the like are set for each cavity, a pressure holding step can be carried out, a plurality of products having an appearance free from such a defect as a sink mark can be obtained, the pressure in the cavity can be reduced by a gas pressure, and a necessary mold clamping force can be decreased. A valve for a first cavity is closed after the filling into the first cavity is finished, and a valve for a second cavity is concurrently opened to perform the filling into the second cavity. When injection is effected into each cavity in succession, a gas is injected into the filled resin, thereby to carry out a pressure holding step. The same pressure holding step is carried out for a third cavity and the succeeding cavities. As a result, a plurality of products having an appearance free from such a defect as a sink mark can be obtained. Also, the pressure in the cavity can be reduced by a gas pressure, and a required mold clamping force can be decreased.

摘要翻译： 提供了一种通过使用具有多个阀门的多腔热流道模具进行注射成型的成型方法，其中为每个空腔设置适当的保持压力等，可以进行压力保持步骤， 可以获得具有没有凹痕等缺陷的外观的多个产品，可以通过气体压力来减小空腔中的压力，并且可以减少所需的模具夹紧力。 在第一腔体的填充完成之后，用于第一腔体的阀门关闭，并且同时打开用于第二腔室的阀，以执行向第二腔室的填充。 当连续地进入每个空腔时，将气体注入填充的树脂中，从而进行压力保持步骤。 对于第三腔和随后的腔进行相同的压力保持步骤。 结果，可以获得具有无凹陷痕迹的外观的多种产品。 此外，可以通过气体压力来减小空腔中的压力，并且可以减少所需的模具夹紧力。

公开(公告)号：US5899601A

公开(公告)日：1999-05-04

申请号：US945466

申请日：1997-11-14

申请人： Isao Yamaguchi ,  Takashi Kodama ,  Sunao Yamasaki ,  Hiromi Okuzono

发明人： Isao Yamaguchi ,  Takashi Kodama ,  Sunao Yamasaki ,  Hiromi Okuzono

IPC分类号： G03G15/00 ,  G03G15/04 ,  G03G15/30 ,  G03G21/16

CPC分类号： G03G15/30 ,  G03G15/00

摘要： In an electrophotographic copying apparatus, component units are disposed in a vertical arrangement so that the electrophotographic copying apparatus can be made more compact, lighter in weight and shorter in copying time. An image processing and conveyance unit has a sheet feeder unit, an image processing unit and a fixing-and-discharge section placed generally vertically in this order from below. A developing unit of an image processing unit is retained by a unit retaining portion formed into a generally U shaped cross section and erected on both sides of one end of a base, and by a resin frame having pillar portions integrally formed at the other end. An exposure optical unit is fitted to an upper end portion of the resin frame, and the image processing and conveyance unit is so arranged that its top portion is located in a place out of the region of scanning by a reflecting apparatus of the exposure optical unit. Thus, the whole apparatus can be made compact and shorter in the conveyance distance of sheets.

摘要翻译： PCT No.PCT / JP96 / 01320 Sec。 371日期：1997年11月14日 102（e）日期1997年11月14日PCT提交1996年5月20日PCT公布。 WO96 / 36907 PCT出版物 日期1996年11月21日在电子照相复印设备中，部件单元以垂直布置设置，使得电子照相复印设备可以制造得更紧凑，重量更轻，复印时间更短。 图像处理和传送单元具有从下方顺序放置的片材馈送单元，图像处理单元和固定和放电部分。 图像处理单元的显影单元由形成为大致U形截面的单元保持部保持，并且竖立在基座的一端的两侧，并且具有在另一端一体形成的柱部的树脂框架。 曝光光学单元装配到树脂框架的上端部分，并且图像处理和传送单元被布置成使得其顶部位于通过曝光光学单元的反射装置的扫描区域之外的位置 。 因此，整个装置可以在片材的输送距离内变得紧凑和更短。