发明名称 Apparatus for assisting rotation of a member for connecting a hammer tool to a micropile and assembly comprising a connecting member and such an apparatus
摘要 <p>The device has a ratchet (13) movable in rotation against a compression spring and comprising an axle (12) supported by identical flanges (8, 9) of a ratchet handle (6). Each flange has an annular front part with an inner surface arranged against a lateral wall of a bell (1), where the bell is made of metal alloy e.g. 35NCD16 steel or cast aluminum. A sleeve (47) mounted between rear parts of the flanges has a mounting opening of a lever arm (48). An independent claim is also included for an assembly formed by a connection unit`s rotation assisting device.</p>
申请公布号 EP1798343(A1) 申请公布日期 2007.06.20
申请号 EP20050292725 申请日期 2005.12.16
申请人 JEAN-MARIE RENOVATION 发明人 DENIS, JEAN-MARIE
分类号 E02D7/26;E02D7/04;E02D7/06 主分类号 E02D7/26
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