Patent ID: 9115742
Filing Date: 2015-08-25
Classification: E02F,F16B,F16C,Y10T

Abstract:
1. A pinned connection for earthmoving equipment comprising: a first connection element including a pair of spaced arms, each said arm defining an aperture such that the apertures are aligned with each other, each said aperture including a bushing, each bushing including a cavity, and at least one of said apertures having a tapered wall portion, and the arm with the tapered wall portion including a locking formation in communication with the aperture; a second connection element received between the arms of the first connection element and defining a hole aligned with the apertures; a pin having a pair of ends that oppose each other, and an exterior surface extending between the pair of ends, the pin extending into the cavity of one said bushing within one said aperture and through the hole in the second connection element and into the other cavity of the other bushing within the other said aperture to connect the first connection element to the second connection element; a retainer located within the at least one said aperture with the tapered wall portion to oppose one said end of the pin to limit axial movement of the pin, said retainer having an exterior surface including a tapered wall portion corresponding to the tapered wall portion of the respective aperture, wherein the engaged tapered wall portions of the aperture and the retainer include engagable helical projections and helical grooves to secure the retainers to the apertures during use and facilitate removal of the retainer for inspection; and a releasable lock received into the locking formation to contact the exterior surface of the retainer secured in the at least one said aperture to prevent removal of the retainer from the at least one said aperture.