Male and female parts of civil engineering bucket wear assemblies

摘要

A wear assembly of an earth-moving machine's bucket comprises a male part 1 and a female part 2, both of which in turn comprises a nose 10 (male) or cavity 20 (female) provided with an upper surface and a lower surface. The upper surface comprises an upper front portion 14 or 24 that extends backward from the tip of the nose or the bottom of the cavity and the lower surface comprises a lower front portion 13 or 23 that extends likewise, one of said upper and lower front portions being concave and the other being convex. Analogously, the upper surface comprises an upper back portion 16 or 26 that extends forward from the base of the nose or the mouth of the cavity, and the lower surface comprises a lower back portion 15 or 25 that extends likewise, one of said upper and lower front portions being concave and the other being convex.