发明申请
- 专利标题： FASTENING MEMBER
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申请号： US16495466申请日： 2018-03-02
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公开(公告)号： US20200072272A1公开(公告)日： 2020-03-05
- 发明人: Noriyoshi Kaneda , Takeshi Suzuki
- 申请人： NHK Spring Co., Ltd.
- 申请人地址： JP Yokohama-shi
- 专利权人： NHK Spring Co., Ltd.
- 当前专利权人： NHK Spring Co., Ltd.
- 当前专利权人地址： JP Yokohama-shi
- 优先权： JP2017-058387 20170324
- 国际申请： PCT/JP2018/008161 WO 20180302
- 主分类号： F16B33/02
- IPC分类号： F16B33/02 ; F16B33/06 ; F16B35/04
摘要：
A fastening member includes a screw thread formed therein. A portion including a crest portion of the screw thread is formed of a first alloy material and includes: a thick portion where the portion is maximized in thickness in a circumferential direction; and a thin portion where the portion is minimized in thickness in the circumferential direction. A portion including a root of the screw thread is formed of a second alloy material having a tensile strength higher than that of the first alloy material.
公开/授权文献
- US11286972B2 Fastening member 公开/授权日：2022-03-29