Tooth construction

摘要

A tooth construction for a mineral breaker, the tooth construction including a tooth shaped support body covered by a shell on which is mounted a breaking tip formation to define the outer shape of the tooth construction; the support body having a front face, an opposed rear face, and a pair of opposed side faces extending therebetween; the shell being composed of a cover formation defining a front wall, opposed side walls, and a top wall overlying and seated in face to face contact with respective front, side and top faces of the support body; the breaking tip formation comprising a pick formation presenting a rear surface in face to face contact with and secured upon the front wall of the cover so as to project forwardly therefrom and a top formation extending rearwardly of the pick formation and presenting a lower surface in face to face contact with and secured upon the top wall of the cover.

主权项

1. A tooth construction for a mineral breaker, the tooth construction comprising:
a shell that is mountable upon a tooth shaped support body and a breaking tip formation mountable on the shell which together define generally an outer shape of the tooth construction; the support body having a front face, an opposed rear face, a pair of opposed side faces extending therebetween, and a top face; the shell being composed of a cover formation defining a front wall, opposed side walls, and a top wall overlying and configured to be seated in use in face to face contact with respective front, side and top faces of the support body; the breaking tip formation comprising a pick formation presenting a rear surface configured to be seated in use in face to face contact with the front wall of the cover so as to project forwardly therefrom and a top formation extending rearwardly of the pick formation and presenting a lower surface configured to be seated in use in face to face contact with the top wall of the cover; and wherein the top formation of the breaking tip formation extends over the top wall of the cover formation for at least a substantial portion of a length and a width of the top wall.