EARTH MOVING IMPLEMENT HAVING A REPLACEABLE CUTTING EDGE ASSEMBLY
1474360 Excavator teeth assemblies CATERPILLAR TRACTOR CO 14 Jan 1976 [12 May 1975] 01424/76 Heading E1F A replaceable cutting edge assembly for an earth-moving implement comprises cutting edge sections 22 and digging teeth 24. Each cutting edge section 22 has a wedge shaped portion 32 extending forwardly from the leading edge 12 of the floor of the implement and a flange 36 underlapping the floor, the flange and the Boor having aligned holes 28, 30 for receiving bolt means 26 for securing the cutting edge section 22 in place. Each cutting edge section 22 also has a rearwardly facing stepped surface 38 at the junction of the wedge shaped portion 32 and the flange 36, the stepped surface being spaced apart from the leading edge 14 of the floor. A tooth 24 is located at each juncture between adjacent pairs of cutting edge sections. Each digging tooth 24 has a rearwardly extending portion 14 that is shaped to overlap and abut against the wedge shaped portions of the associated cutting edge sections 22 and is provided with a tang 46 extending into and substantially filling the space between the leading edge of the floor and the stepped surfaces 38 of the two associated cutting edge sections. In a modified construction to that shown each tooth is also provided with a portion that extends rearwardly beneath both associated cutting sections as well as the floor and is apertured so that a tooth can be further secured in place by the bolt means 26 passing through said portion as well as the sections and the floor.