发明授权
- 专利标题： Tripod type constant-velocity universal joint and method for producing the same
- 专利标题（中）： 三脚架式等速万向节及其制造方法
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申请号： US13259504申请日： 2010-04-02
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公开(公告)号： US08491398B2公开(公告)日： 2013-07-23
- 发明人: Junichi Izumino , Kenji Konaka , Hiroshi Murakami , Akira Sera , Jiahua Miao , Shunsuke Makino
- 申请人： Junichi Izumino , Kenji Konaka , Hiroshi Murakami , Akira Sera , Jiahua Miao , Shunsuke Makino
- 申请人地址： JP Osaka
- 专利权人： NTN Corporation
- 当前专利权人： NTN Corporation
- 当前专利权人地址： JP Osaka
- 代理机构： Wenderoth, Lind & Ponack, L.L.P.
- 优先权： JP2009-102144 20090420
- 国际申请： PCT/JP2010/056070 WO 20100402
- 国际公布： WO2010/122893 WO 20101028
- 主分类号： F16D3/205
- IPC分类号： F16D3/205
摘要：
A manufacturing method for a tripod type constant velocity universal joint includes, when forging a raw-shaped material corresponding to each of three journals into a journal shape using a molding surface of a die and in a state where a relief portion is provided on a raw-shaped-material-leading-end-side of the die, molding an outer peripheral surface of the raw-shaped material into a projected round shape. The molding occurring with a tapered surface formed on the molding surface with which the outer peripheral surface of the raw-shaped material is held in contact and a recessed round surface formed between the molding surface and the tapered surface.