- 专利标题: Screw and method of its manufacture
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申请号: US15119997申请日: 2015-03-16
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公开(公告)号: US10580593B2公开(公告)日: 2020-03-03
- 发明人: Mariusz Skóra , Boguslaw Buszta , Dariusz Kluz
- 申请人: GAWEŁ ZAKŁAD PRODUKCJI ŚRUB S.A.
- 申请人地址: PL Strazow
- 专利权人: GAWEL ZAKLAD PRODUKCJI SRUB S.A
- 当前专利权人: GAWEL ZAKLAD PRODUKCJI SRUB S.A
- 当前专利权人地址: PL Strazow
- 代理机构: Ziegler IP Law Group, LLC
- 优先权: PL407642 20140324
- 国际申请: PCT/PL2015/050005 WO 20150316
- 国际公布: WO2015/147667 WO 20151001
- 主分类号: F16B35/00
- IPC分类号: F16B35/00 ; H01H1/025 ; H01H11/04 ; B23G9/00 ; H01H1/021
摘要:
A screw includes a barrel-shaped central pin is surrounded by a cylindrical bore having a conical bottom The cylindrical insert is seated in the cylindrical bore. The top surface of the central pin is lowered below the top surface of the head. The walls of the pin (4) are convex towards the insert. Manufacturing the screw includes producing the threaded part with the head with the cylindrical recess with the cone-shaped bottom. The cylindrical insert terminates at one end with a bevel with an inclination angle of α=10-30°. The insert is introduced into the cylindrical recess. The upper part of the insert protruding from head of the screw is pre-shaped. The pin is upset using an appropriate tool and simultaneously the top surface of the pin is lowered below the top surface of the head.
公开/授权文献
- US20170062145A1 SCREW AND METHOD OF ITS MANUFACTURE 公开/授权日:2017-03-02
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