A tooth bar mounting

摘要

Apparatus for mounting a tooth bar (11) on a thumb sub-assembly (10), for use with material handling equipment such as excavators and backhoes, is disclosed. The thumb sub-assembly includes a thumb sub-assembly mounting plate (12) having a mounting surface (12a) and the tooth bar includes a tooth bar mounting plate (13) having a bevelled upper edge (34). The tooth bar mount further includes a number of flanges (36), each having a finger portion which extends over the mounting surface of the thumb sub-assembly mounting plate. Each finger portion includes an edge surface which faces towards the mounting surface and is configured such that the distance between the edge surface and the mounting surface decreases inwardly from the distal ends of the finger portion resulting in a narrowing slot into which the bevelled edge of the tooth bar mounting plate can be wedgingly engaged. The tooth bar mounting plate is fixed to the mounting surface with bolts (14) following engagement. The modular nature of the apparatus allows the use of a standard thumb sub-assembly, on which is attached a pre-manufactured tooth bar suitable for the end user's requirements.