Trencher tooth quick attachment

Abstract

A support assembly for trencher teeth or other tools including a mounting bracket which is retained on a bracket support by only one retaining pin thereby permitting quick and convenient installation on or detachment from a trencher digging chain. The mounting bracket is constructed for holding a pair of reversible trencher teeth made in accordance with the present invention, each tooth including plural cutting edges. The operator mounts a trencher tooth to one side of the mounting bracket until its forward cutting edge becomes dulled or damaged, and then, reverses the tooth to the opposite side of the bracket for further use. One end of the mounting bracket is formed with a downwardly depending hook-like projection which engages and locks against an end of the bracket support. The opposite end of the mounting bracket abuts against an upstanding vertical projection on the bracket support and is held thereto by a single retaining pin passing through the upstanding projection and into the bracket support. The trencher teeth are held within the mounting bracket by tooth attaching pins which are retained in transverse openings through the opposed ends of the mounting bracket. The longitudinal axes of the retaining pins are substantially perpendicular to and lockingly engage the tooth mounting portions which extend into the opposed sides of the mounting bracket. Thus, the present invention reduces the number of mounting parts required and material cost for trencher tooth attachments and provides an assembly that is convenient and quick to operate.

Dependencies are inferred from the claim text.