Tri-anchor bracket for poles

Claim 1

An anchor bracket securing a pole vertically on a hard rock-like support surface, said bracket comprising a clamp device secured to said pole, at least two anchor rods, each said anchor rod having a top end and a bottom end section, said bottom end section having an expanding end, a bottom securement sleeve about said bottom end section of each anchor rod and having at least an expandable section formed in a bottom end portion thereof, a top securement sleeve about each anchor rod above said bottom securement sleeve, said clamp device being fixedly secured to said top securement sleeve, a hole in said support surface receiving a respective one of said anchor rods and its associated bottom and top securement sleeves with said top securement sleeve extending out of said hole above said support surface, gripping means displaceably engaged with said rod top end section remote from said rod bottom end section and engageable with said top securement sleeve to cause axial displacement of said rod relative to said top securement sleeve and said clamp device, said top securement sleeve having a bottom end in abutment with a top end of said bottom securement sleeve permitting relative axial displacement between said expanding end of said anchor rod and said expandable section of said bottom securement sleeve when said rod is axially displaced by said gripping means whereby said expandable section is displaced outwardly by lateral pressure of said expandable section to anchor said bottom end section in its respective hole in said support surface, the fixed relation between said top securement sleeve, said clamp device and said post on the one hand and the relative movability of said rod and said bottom securement sleeve on the other hand permitting said rod when subjected to an axial pulling force caused by a transverse load applied to said pole to cause said rod expanding end to apply further lateral pressure to said expandable section of said bottom securement sleeve to increase said lateral pressure of said expandable section in the respective hole while said top securement sleeve is subjected to substantially no pulling force, and said top securement sleeve being retrained against lateral movement in a respective hole and restraining said post against lateral movement on said support surface.