Blade for working machine, and construction and earth-moving machine with the blade

摘要

A blade preferably adopted to work machines for digging, carrying of soil and leveling, which achieves an increase in a quantity of soil per tractional force with a simple structure to reduce consumption horsepower and increase fuel consumption efficiency thereby leading to low cost, has a central front face section ( 12 ) having a linear first cutting edge ( 15 ) at a bottom end thereof, a jointed front face section ( 13 ) having a second cutting edge ( 16 ) which continues from the first cutting edge ( 15 ) and extends backward at a predetermined angle, and an end front face section ( 14 ) having a third cutting edge ( 17 ) which continues from the second cutting edge ( 16 ) and extended forward at a predetermined angle.