Blade for an earth-moving machine and earth-moving machine with the blade

摘要

An object of the invention is to provide a blade preferable for being mounted on various kinds of work machines, particularly work machines for digging, carrying of soil and leveling, in which increase in a quantity of soil per tractional force is achieved with a simple structure to reduce consumption horsepower and increase fuel consumption efficiency thereby leading to low cost. A blade comprises 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. The first cutting edge (15) is protruded forward of the second and third cutting edges (16, 17) in their top view. Preferably, width (W1) of the first cutting edge (15) is set larger than internal width (W0) between right and left traveling units. Further, when the blade is in contact with the ground at an ordinary cutting angle (²), preferably, the entire blade is inclined backward with its sweepback angle (³) of 15° or less.