Tooth and adaptor assembly

Details Tooth and adaptor assembly Tooth and adaptor assembly

E - Fixed Constructions

02

F

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

Patent

CA 2551312

A tooth and adaptor assembly is provided for a dipper bucket. The assembly comprises an adaptor having a rear portion for attaching to the dipper bucket, a tooth capable of releasable attachment to the adaptor and a retainer pin for securing the tooth to the adaptor. The adaptor further comprises a tapering intermediate portion that narrows to a rectangular front portion. The adaptor further comprises a planar surface on a portion of its intermediate portion and a cavity on the planar surface for receiving the retainer pin, the cavity positioned transverse to the horizontal longitudinal axis of the adaptor. The tooth has a tip at its front end for digging and a socket at its rear end configured to receive the front and intermediate portions of the adaptor. A small opening on the rear end of the tooth aligns with the cavity when the tooth is seated on the adaptor. The retainer pin disposed into the adaptor cavity is urged outward by a biasing element to engage the small opening on the tooth so as to secure the tooth to the adaptor.

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