Pivot handle for use with expansible hole anchor

Abstract

A pivot handle operable for use with conventional hole anchor devices is provided and generally includes an assembly of links and rockers attached together on opposite sides of the load cable by fasteners. Respective ends of the hole anchor's chock cables are fixed to the rockers. When assembled about the load cable of the hole anchor, the rockers cooperate to allow kink-controlling movement of the chock cables relative to the load cable. The handle rocks or pivots when one chock cable is in tension and the other cable is in compression, thereby discouraging cable kinking or excessive bending which may foul effective operation of the anchor. To facilitate retraction of the handle, finger curves formed with the rockers are also provided.

1 . An expansible hole anchor adapted for insertion into a hole formed within a structure, said hole anchor comprising: 
 a load cable;    a center chock attached to an end of said load cable;    at least one side chock adjacent to said center chock and adapted for movement between an anchor-contracting position and an anchor-expanding position; and    a pivot handle carried by said load cable and adapted for moving said at least one side chock from the anchor-expanding position to the anchor-contracting position, and    whereby in said anchor-contracting position, said anchor is readily inserted into and removed from the hole of the structure, and in said anchor-expanding position, said anchor is locked inside the hole of the structure.    
   
   
       2 . The expansible hole anchor according to  claim 1 , further comprising a chock cable interconnecting said pivot handle and said at least one side chock.  
   
   
       3 . The expansible hole anchor according to  claim 1 , wherein said pivot handle comprises a link assembly movably joined to a rocker assembly for allowing kink-controlling movement of said chock cable relative to said load cable.  
   
   
       4 . The expansible hole anchor of  claim 3 , wherein the link assembly is a plurality of links, each link being joined to a surface of the rocker assembly such that the pivot handle is mounted about the load cable.  
   
   
       5 . The expansible hole anchor of  claim 3 , wherein finger curves are formed with the rocker assembly for facilitating retraction of the pivot handle along the load cable.  
   
   
       6 . The expansible hole anchor of  claim 3 , wherein the rocker assembly comprises at least two rockers having substantially planar top and bottom portions and a side wall.  
   
   
       7 . A pivot handle, comprising: 
 at least one rocker assembly;    a plurality of links movably joined to the at least one rocker assembly by at least one fastener; and    wherein the pivot handle is mounted about a load cable of an expansible hole anchor, and    wherein an end of at least one chock cable is fixed to the at least one rocker assembly such that the pivot handle provides kink-controlling movement of the at least one chock cable relative to the load cable.    
   
   
       7 . The pivot handle of  claim 6 , wherein the at least one rocker assembly comprises substantially planar top and bottom portions and a side wall.  
   
   
       8 . The pivot handle of  claim 7 , further comprising finger curves formed with the at least one rocker assembly for facilitating retraction of the pivot handle along the load cable.  
   
   
       9 . A pivot handle for use with an expansible hole anchor, comprising: 
 a pair of rockers having substantially planar top and bottom portions and a side wall;    a first link movably joined to the top portions of the rockers and a second link movably joined to the bottom portions of the rockers;    attachments means for receiving respective ends of a plurality of chock cables such that the pivot handle pivots when one chock cable is in tension and the other cable is in compression, thereby discouraging cable kinking;    wherein the pivot handle is movably mounted about a load cable of an expansible hole anchor.    
   
   
       10 . The pivot handle of  claim 9 , wherein at least one bore extending through the top portion to the bottom portion of each rocker is provided for receiving a fastener for movably joining the links to the rockers.  
   
   
       11 . The pivot handle of  claim 10 , wherein the fastener is selected from the group consisting of a rivet, a pin, a screw and a wireform.  
   
   
       12 . The pivot handle of  claim 9 , further including finger curves formed in the side wall of the rockers for facilitating retraction of the pivot handle along the load cable.