发明名称 |
RESIN MOLDED OBJECT AND VALVE STRUCTURE USING THE SAME |
摘要 |
PROBLEM TO BE SOLVED: To provide a resin molded object capable of ensuring the high molding precision of the valve part of a valve element, for example, when the valve element being the resin molded object is injection-molded. SOLUTION: This valve structure using the resin molded object is equipped with the valve element 5 provided in a valve body in a freely slidable manner and a valve seat permitting the contact with or separation from the valve part 10a of the valve element. The valve element is molded from a synthetic resin material by an injection molding machine 20. The leading end openings 25a and 26a of a pair of the gate parts 25 and 26 of the injection molding machine are formed so as to be opened in the vicinity of the valve part molding region 23c of a cavity 23 for molding the valve part of the valve element to allow the molten resin injected in a second cavity part 23b to flow along the inner peripheral surface of the valve part molding region to enhance the transfer properties of the molten resin to the inner peripheral surface of the valve part molding region becoming the outer peripheral surface of the valve part. COPYRIGHT: (C)2004,JPO&NCIPI |
申请公布号 |
JP2004255615(A) |
申请公布日期 |
2004.09.16 |
申请号 |
JP20030046359 |
申请日期 |
2003.02.24 |
申请人 |
HITACHI UNISIA AUTOMOTIVE LTD;SEIWA JUSHI KOGYO KK |
发明人 |
TAKAHASHI HIDEAKI;HARA MASAHIKO;KOBAYASHI HIROSHI |
分类号 |
F16K31/06;B29C45/26;B29L31/00;(IPC1-7):B29C45/26 |
主分类号 |
F16K31/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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