Shield for blade or other component of civil engineering machine has fastening with three successive zones and connecting key

摘要

The shield (11), fastened to a blade on the side of a scoop or bucket, is joined to a welded attachment (15) with the aid of a key (16). The attachment has three successive zones for fitting the shield and retaining it transversely, for inserting the key and protecting the key, with remaining cavities filled with a filling material. The attachment has a base plate (15e), a raised thrust base (15f) and a vertical rib (15p).