发明名称 |
ガードレールボルト |
摘要 |
A self-expanding and self-undercutting guard rail bolt includes a dowel having a guard rail fastening end and a ring. The fastening end is configured to be driven in rotation, and the ring is configured to rigidly connect to a first screwing end of the dowel by an incipient fracture portion. The self-expanding and self-undercutting guard rail bolt further includes a counter-dowel screwed to the dowel by a second screwing end. The counter-dowel includes an expansion cone, and an anti-rotation head having at least one edge which projects beyond a periphery of the dowel to prevent rotation of the counter-dowel about an axis of the guard rail bolt. |
申请公布号 |
JP5633942(B2) |
申请公布日期 |
2014.12.03 |
申请号 |
JP20120237104 |
申请日期 |
2012.10.26 |
申请人 |
ソシエテ ドゥ プロスペクティオン エ ディンベンティオン テクニク スピ |
发明人 |
プルティエール,ファブリス;リコルディ,クリスティアン |
分类号 |
E04B1/41;B25B23/00;B25B31/00;E04F11/18;F16B13/06;F16B13/08 |
主分类号 |
E04B1/41 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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