초록 ▼

A pin retention mechanism for a pivot joint which connects together two structural members of a machine for pivotal movement relative to each other. The pivot pin has a dynamic connection with one of the structural members and there is an annular spacer on the pivot pin adjacent the dynamic connecti

A pin retention mechanism for a pivot joint which connects together two structural members of a machine for pivotal movement relative to each other. The pivot pin has a dynamic connection with one of the structural members and there is an annular spacer on the pivot pin adjacent the dynamic connection. The other structural member has a tapered opening through it with the taper either on the structural member itself or on a bushing within an opening in the other structural member. A collet in the tapered opening has an external surface mating with the tapered internal surface. A cylindrical sleeve is located between the collet and the pivot pin and in contact with the spacer.

대표청구항 ▼

A pin retention mechanism for a pivot joint which connects together two structural members for pivotal movement relative to each other about a pivot axis, one of said structural members having two laterally spaced portions, each of said spaced portions having a circular opening therein with the cent

A pin retention mechanism for a pivot joint which connects together two structural members for pivotal movement relative to each other about a pivot axis, one of said structural members having two laterally spaced portions, each of said spaced portions having a circular opening therein with the centers thereof aligned along said axis, the other said structural member located in part between said spaced portions, a third circular opening through said other structural member coaxial with said axis, a pivot pin extending through said three openings, and a bearing assembly between said other structural member and said pin, the pin retention mechanism comprising, an annular spacer on said pin abutting said bearing assembly and adjacent a first opening through one of said laterally spaced portions, said first opening having an internal taper with the largest diameter of the taper at the outer surface of said one laterally spaced portion and the smallest diameter of the taper at the inner surface of said one laterally spaced portion and adjacent said spacer, a collet in said first opening having a tapered external surface mating with said internal taper, said collet having at least one slot extending longitudinally from its inner margin, a cylindrical sleeve between said collet and said pivot pin and in contact with said annular spacer, and said sleeve also having at least one longitudinal slot therein from its inner margin.