发明名称 |
TUBE, METHOD FOR PRODUCING TUBE, AND MOLD |
摘要 |
The present invention molds, with simple processes, a tube which has a smaller outer diameter and is hardly bent in a folded manner. The present invention includes (i) a primary molding step of forming a primary molded body by carrying out resin molding while a reinforcing member and a core pin (4) are placed in a cavity of a first mold made up of a lower mold (30) and an upper mold (40) for primary molding and (ii) a secondary molding step of covering the reinforcing member by carrying out resin molding while the primary molded body is placed in a cavity of a second mold that has an inner diameter larger than an inner diameter of the cavity of the first mold. |
申请公布号 |
US2017008209(A1) |
申请公布日期 |
2017.01.12 |
申请号 |
US201515116387 |
申请日期 |
2015.02.04 |
申请人 |
TATSUTA ELECTRIC WIRE & CABLE CO., LTD. |
发明人 |
OHNISHI Hisafumi;YOSHINO Shinji;HIRANO Yoshio |
分类号 |
B29C45/16;B32B27/08;B29C45/26 |
主分类号 |
B29C45/16 |
代理机构 |
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代理人 |
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主权项 |
1. A method for producing a tube which includes a wall section, a hollow section, and a reinforcing member, the reinforcing member being provided in the wall section and having a ring shape, a wide-ring shape, or a spiral shape, said method comprising the steps of:
(a) forming a primary molded body, in which the reinforcing member is provided along an outer peripheral surface of a tubular resin, by carrying out resin molding while the reinforcing member and a core pin for forming the hollow section are placed in a cavity of a first mold; and (b) covering the reinforcing member by carrying out resin molding while the primary molded body is placed in a cavity of a second mold which has an inner diameter larger than an inner diameter of the first mold. |
地址 |
Higashiosaka-shi JP |