Attachment assembly for excavation teeth

Details Attachment assembly for excavation teeth Attachment assembly for excavation teeth

E - Fixed Constructions

02

F

E02F 9/28 (2006.01)

Patent

CA 2149312

An attachment assembly for securing excavation teeth (15) to the loading or dipper bucket on large excavation equipment. The assembly includes a bucket lip (10) adapted to be secured to a loading or dipper bucket, and a plurality of shanks (12) adapted to be secured to the lip and carrying the excavation teeth. The second curvilinear bearing surface (38) abuts and males with one of the first curvilinear bearing surfaces (26)) on the bucket lip upon shank being disposed thereover. The first and second curvilinear hearing surfaces define equal radius segments of a constant radius circle such that the shank can be aligned parallel to at an angle at up to fifteen degrees with respect to the central longitudinal axis (20) of the bucket lip with the abutting and mating relationships of the first and second bearing surfaces being maintained so as to prevent bearing fracture within the shank during use.

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