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3. 发明授权

US5497849A Luff groove bracket and method 失效
标题翻译：唇槽支架和方法
公开(公告)号：US5497849A
公开(公告)日：1996-03-12
申请号：US293832
申请日：1994-08-22
申请人： John C. Duffy
发明人： John C. Duffy
IPC分类号： A63B27/00 , A63B27/04 , A63B27/02
CPC分类号： A63B27/00 , A63B27/04
摘要： A shiftable bracket which has a body portion essentially tubular in length but significantly higher than it is wide and considerably longer than it is wide which has a central locking plate assembly is disclosed. The central locking plate assembly, in turn, has a locking flange at its remote end and a centrally oriented bore for receiving a lock plate assembly pin. A pair of lock plates are employed which are essentially the mirror image each of the other, and which have locking flanges at the remote ends for being positioned inside of a mast. Because they are in a pair, one can be inserted inside the mast slot, then the other one inserted, and thereafter the body of the shiftable bracket moved into position in alignment with the bores in the lock plate assembly, and thereafter the lock plate assembly pin pass through the two side plate portions of the body and pivotally engage the lock plate assemblies in place. Thereafter, the lower portion of the locking flanges will engage the interior portion of the mast and jam-fittingly lock the same in place against dislodgement downwardly in the absence of the body being put into an end parallel relationship with the flanges.
摘要翻译：具有主体部分的可移动支架，其主体部分的长度基本上是管状的，但是显着地高于其宽度并且比具有中央锁定板组件的宽度大得多的长度。中心锁定板组件又在其远端具有锁定凸缘，并且中心定位的孔用于接收锁定板组件销。使用一对锁板，其基本上是彼此的镜像，并且在远端具有用于定位在桅杆内部的锁定凸缘。因为它们是一对的，所以可以插入到桅杆槽内，然后插入另一个，然后将可移动支架的主体移动到与锁板组件中的孔对准的位置，此后，锁板组件销穿过主体的两个侧板部分，并将锁定板组件枢转地接合在适当位置。此后，锁定凸缘的下部将接合桅杆的内部，并且在没有将主体与凸缘平行关系的情况下向下卡合配合地将其锁定在适当位置，防止向下移动。

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