Crimping tool

Abstract

The present invention provides a tool being used to crimp a ring onto a pipe joint, which includes two half-die members having each bore openings and a recess formed at their rear end portion for receiving a body member to be connected therewith by dowell pins, and further at their front end portion is formed a recess for receiving a threaded rod coupled to a clamp bolt. The threaded rod is engaged therein a threaded bore formed thereon a bushing passing through two bores located thereof each side of the lower half-die member. The clamp bolt is blocked therein the bushing by a spring pin to be engaged therethrough a hole formed therewith and through a hole formed therein the threaded rod. Further, the both half-die members are disposed in alignment with the bore openings for receiving the ring that is crimped onto the pipe joint by the use of a handle having at each end portion a notch to prevent the handle to be pulled out of the clamp bolt.

1 . A tool being used to crimp a ring onto a pipe joint, wherein said tool comprising:
 two half-die members having each bore openings;   a recess formed at their rear end portion for receiving a body member to be connected therewith by dowell pins;   a recess formed at their front end portion for receiving a threaded rod coupled to a clamp bolt,   wherein said threaded rod is engaged therein a threaded bore formed thereon a bushing passing through two bores formed thereof each side of the lower half-die member, and   wherein said clamp bolt is blocked therein the bushing by a spring pin to be engaged therethrough a hole formed therewith and through a hole formed therein the threaded rod.   
   
   
       2 . A tool as defined in  claim 1  wherein the half-die members are disposed in alignment with the bore openings for receiving the ring that is crimped onto the pipe joint by the use of a handle having at each end portion a notch to prevent the handle to be pulled out of the clamp bolt. 
   
   
       3 . A tool as defined in  claim 1  characterized in that said tool has three bore openings. 
   
   
       4 . A tool as defined in  claim 1  wherein a first bore opening is characterized in that its diameter is of 288 mm. 
   
   
       5 . A tool as defined in  claim 1  wherein a second bore opening is characterized in that its diameter is of 344 mm. 
   
   
       6 . A tool as defined in  claim 1  wherein a third bore opening is characterized in that its diameter is of 463 mm. 
   
   
       7 . A tool as defined in  claim 1  wherein the clamp bolt includes at its upper end portion an hexagonal-head to be used with a key or ratchet. 
   
   
       8 . A tool as defined in  claim 1  characterized in that a washer is mounted to said clamp bolt for protecting the top face of the upper half-die member.