Patent ID: 7913430

Claim:
A screening, crushing or mixing bucket, which is designed as the bucket of an excavating machine or a bucket loader, comprising: a bottom plate; side walls; and working drums, which are rotatable about their axes at a rear part of the bucket and which, while in rotation, effect screening, crushing or mixing of a material present in the bucket and at the same time delivering of a screened, crushed or mixed material out of the bucket between or through the working drums, as well as enclosures for a transmission and bearing assemblies of the working drums, said enclosures being defined by frame panels capable of being fitted with bearing cups for the drums, wherein: tool flanges are provided with a butt collar or butt expansion, extending around the drum shaft and dimensioned in the drum shaft direction in such a way that, with the tool flanges at a desired distance from each other, between the butt collars remains a gap for a welded joint; and that two tool flanges and the drum shaft are attached together by a single welded joint present in said gap.