Positive keeper means for pins of earthworking tips

Details Positive keeper means for pins of earthworking tips Positive keeper means for pins of earthworking tips

E - Fixed Constructions

02

F

294/36

E02F 9/28 (2006.01) E02F 3/40 (2006.01)

Patent

CA 1283939

Abstract of the Disclosure Positive Keeper Means For Pins of Earthworking Tips The invention relates to a pin retainer assembly having a keeper means for retaining earthworking tips on adapters. Positive retention of earthworking tips on their adapters by their retaining pins during its work cycle is extremely important from an operational as well as a cost standpoint. The loss of the tips materially affect productions in addition to the time consuming expense of replacement of repair of the components. Not only must the tips be adequately retained, they must be capable of quick removal for replacement purposes. Keeper means for the pin is captured in a recess between a nose of the adapter and a sidewall of the tips and includes a washer slidably disposed on the pin and a resilient retaining ring having a predetermined radial thickness disposed in locking engagement in a groove on the pin and a groove of the washer. One of the grooves in the pin and the washer has a depth equal to or greater than the predetermined radial thickness of the retaining ring and the other one of the grooves has a depth sufficient to prevent camming of the ring out of the groove and to provide substantially the maximum cross-section width of the ring in shear. In order to disassemble the pin, the ring must be sheared or the washer (46) fractured.

555963

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