Heavy duty hose crimper

Claim 1

A crimping apparatus for radially compressing a tubular fitting against the exterior of a cylindrical hose comprising a first head, a crimping head mounted for relative axial movement toward and away from said first head, said crimping head having a circular opening located around an axis of the apparatus for receiving said hose and tubular fitting, a die supporting ring mounted on said first head in axial alignment with said opening in said crimping head, said die supporting ring having circumferentially spaced guides, die members slidably mounted in said guides so that said die members are radially positioned thereby establishing said opening, pusher members positioned at locations radially outward of said die members and in unconnected contact with said pusher members for pushing said die members radially inward against said tubular fitting, means connecting each of said die members to the die supporting ring and urging said die members radially outward to an open position in said die supporting ring, said pusher members having sloped flat surfaces inclined to said axis engageable with sloped flat surfaces on said crimping head inclinded to said axis and power means for moving said crimping head and said first head together whereby sliding movement of said sloped flat surfaces of said pusher members along said sloped flat surfaces of said crimping head causes said pusher members to move radially inward forcing said die members radially inward into crimping engagement with said tubular fitting and pusher means connecting said first head and each of said pusher members to urge said pusher members radially outward against said sloped flat surfaces on said crimping head and permit said pusher members to slide radially along a radial surface of said first head.