- 专利标题: Rail fastening device
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申请号: US16310420申请日: 2017-06-15
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公开(公告)号: US11180893B2公开(公告)日: 2021-11-23
- 发明人: Stephen David Engert
- 申请人: GANTRY RAILING LIMITED
- 申请人地址: GB Gloucester
- 专利权人: GANTRY RAILING LIMITED
- 当前专利权人: GANTRY RAILING LIMITED
- 当前专利权人地址: GB Gloucester
- 代理商 Kang S. Lim
- 优先权: GB1610661 20160617,GB1612711 20160722
- 国际申请: PCT/GB2017/051753 WO 20170615
- 国际公布: WO2017/216568 WO 20171221
- 主分类号: E01B9/66
- IPC分类号: E01B9/66 ; B66C7/08 ; E01B9/32
摘要:
A rail fastening device comprises a clip (10) having a base (11) and a nose (12) for engaging a rail flange (F). The base (11) comprises circular aperture (14) in which a circular cam (13) is rotatably mounted, the cam (13) being provided with an eccentric aperture (24) for receiving a ground anchor (25), the cam aperture (24) being radially offset from the rotational centre of the cam (13) to define a cam lobe (15). The cam (13) may comprise a ramped circumferential shoulder (18) to engage a complementary shoulder (21) inside the base aperture (14) such that any rotation of the cam (13) under the applied load of the rail causes the cam (13) to move axially of the base aperture (14) thereby tightening the engagement of the anchor (25) on the cam (13) and preventing movement of the clip (10). The degree of rotation of the cam (13) may be limited so that it can only turn in the tightening direction under load.
公开/授权文献
- US20190218723A1 RAIL FASTENING DEVICE 公开/授权日:2019-07-18