发明申请
- 专利标题: KEYWAY TIE
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申请号: US15867623申请日: 2018-01-10
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公开(公告)号: US20190211512A1公开(公告)日: 2019-07-11
- 发明人: Steven R. Mattson , Scott D. Lesher
- 申请人: voestalpine Nortrak Inc.
- 主分类号: E01B35/00
- IPC分类号: E01B35/00 ; E01B3/28 ; E01B9/20 ; E01B9/40 ; E01B9/68
摘要:
A tie having a non-linear keyway under the overlying rail to provide support to restrain lateral and longitudinal movement of the rail. A fastening system to hold rails down on a tie comprises a rail plate that may be fastened to the tie within the keyway. The fasteners are protected to avoid damage in case of a derailment or other adverse conditions. Also disclosed are visual inspection mechanisms to assist with determining whether a fastening system is securely attached to the tie.
公开/授权文献
- US10711406B2 Keyway tie 公开/授权日:2020-07-14