Tooth for an Excavator Bucket

Abstract

A tooth for a bucket of excavators, or similar equipment, comprising a work element able to be associated with a relative support element, wherein said support element has a main body by means of which the support element is able to be fixed to the bucket, and a front protrusion able to be inserted in a mating cavity made on the rear of the work element in order to define a coupling condition between the work element and the support element , wherein the work element and the support element are able to be reciprocally clamped by pin means. The work element comprises at least an appendix protruding from the rear with respect to said cavity and able to couple with the main body in correspondence with a mating recess defining at least a relative upper edge in such a manner that, in this coupling condition, between the upper profile of the appendix and the upper edge there is a slit; the pin means are able to be inserted in a relative housing seating made partly in said appendix and partly in said main body.

Description

FIELD OF THE INVENTION [0001] The present invention concerns a tooth for buckets of excavators or suchlike, consisting of a work element with a pointed shape, also called point, and a relative support element, or point-bearer, associated with each other by pin means. BACKGROUND OF THE INVENTION [0002] Buckets for excavators of a known type substantially comprise an open box-like body, constrained to the mechanical arm of the excavator, on one side of which a plurality of teeth are mounted. [0003] Each tooth consists of two components: a support element, or point-bearer, attached to the side of the box-like body of the bucket, and a work element, or point, associated with said point-bearer due to their coupling shape and constrained thereto by means of a pin element. [0004] To be more exact, at the front the point-bearer has a wedge-shaped protrusion able to be inserted in a cavity of a mating shape made in the rear part of the point; the pin element is arranged transverse, and subst...

AI Technical Summary

Benefits of technology

[0022] Advantageously, said pin means are axially hollow and have a longitudinal through cut able to allow a partial elastic deformation of their section.

[0023] In a preferential form of embodiment, the front protrusio

Problems solved by technology

However, the loads acting on the point determine considerable stresses which are transmitted from the point itself to the pin element and from the latter to the point-bearer, frequently entailing a premature wear, if not damage or breakages, both of the pin element and also of the surfaces of the point and the point-bearer in contact with the pin element.

This situation can therefore entail, even frequently, the need to completely replace the teeth of the bucket, with long periods of inactivity of the excavators and an increase in the management and maintenance costs of the excavators.

Images