Indexing device for performing operational tasks on a tool element

Abstract

An indexing device for successively positioning a tool element relative to an apparatus adapted to perform a series of operational tasks on said tool element comprises a base, a reciprocally movable support mounted on the base, a fixing member adjustably mounted on the support for fixing the tool element thereto, a pivotable arm mounted to the base and extending between the support and the apparatus, an indexing abutment mounted on the arm and positioned thereon to contact a part of the tool element. The support is moved in a first direction to bring the tool element in a task performing position with the apparatus. The movable support has a pusher to contact the arm and to cause pivotal movement of the arm when the support is moved in this first direction whereby the arm and the abutment are moved away from the task performing position. Thereafter, the arm is returned to a subsequent task performing position when the support is moved in a second direction opposite the first direction.

1 . An indexing device for successively positioning a tool element relative to an apparatus adapted to perform a series of operational tasks on said tool element, comprising: 
 a base;    a reciprocally movable support mounted on said base;    a fixing member adjustably mounted on said support for fixing said tool element thereto;    a pivotable arm mounted to said base and extending between said support and said apparatus;    an indexing abutment mounted on said arm and positioned thereon to contact a part of said tool element;    means allowing said support to move in a first direction to bring said tool element in a task performing position with said apparatus;    said movable support having pusher means to contact said arm and to cause pivotal movement of said arm when said support is moved in said first direction whereby said arm and said abutment are moved away from said task performing position; and    means for returning said arm to a subsequent task performing position when said support is moved in a second direction opposite said first direction.    
   
   
       2 . An indexing device as defined in  claim 1 , wherein said pusher means contacts said arm at a location to cause greater displacement of said abutment than that of said support.  
   
   
       3 . An indexing device as defined in  claim 1 , wherein said pusher means consists of a frusto-spherical head.  
   
   
       4 . An indexing device as defined in  claim 3 , further comprising means for causing translational displacement of said support.  
   
   
       5 . An indexing device as defined in  claim 1 , wherein said arm is mounted to said base by means of a pivotal link and wherein said returning means consists of a spring having one end connected to said link and an opposite end connected to said base.  
   
   
       6 . An indexing device as defined in  claim 1 , further comprising means for fixing said tool element to said fixing member.  
   
   
       7 . An indexing device for successively positioning a saw blade relative to an apparatus adapted to perform a series of tooth grinding tasks on said blade, comprising: 
 a base;    a reciprocally movable support mounted on said base;    a fixing member adjustably mounted on said support for fixing said blade thereto;    a pivotable arm mounted to said base and extending between said support and said apparatus;    an indexing abutment mounted on said arm and positioned thereon to successively contact teeth of said blade;    means allowing said support to move in a first direction to bring said blade in a tooth grinding position with said apparatus;    said movable support having pusher means to contact said arm and to cause pivotal movement of said arm when said support is moved in said first direction whereby said arm and said abutment are moved away from said grinding position; and    means for returning said arm to a subsequent tooth grinding position when said support is moved in a second direction opposite said first direction.