Patent ID: 6085447
Filing Date: 2000-07-11
Classification: E02F,Y10S

Abstract:
For attachment to a bucket of a front end loader, a trenching tool comprising:an earth penetrating blade comprising:a base having a front earth penetrating edge and a rear edge, said front edge presenting an inlet and said rear edge presenting an outlet;a pair of brackets attached to said blade, each of said brackets comprising:an elongated arm presenting an upper edge and a free lower edge, said upper edge supporting said base of said blade;a shoulder brace portion integral with said arm, said shoulder brace portion including:an upper edge adapted to present a bearing surface against an underside surface of the bucket of the loader at a first zone of contact displaced from a front edge of the bucket;a notch in said upper edge of said shoulder brace portion adapted to receive the front edge of the bucket of the loader therein, a receipt of said bucket front edge in the notch positioning said upper edge of said shoulder brace portion in a bearing relationship against the underside surface of the bucket at said first zone of contact;a first clamp extending from an end of said notch and spaced from said upper edge with said notch therebetween, said first clamp presenting a surface adapted to bear against a top side surface of the bucket at a second zone of contact adjacent the front edge upon said receipt of the bucket front edge in said notch;a releasable second clamp comprising:a generally elongated arm having first and second ends;a bearing surface at said first end integral with said second clamp arm, said bearing surface of said second clamp adapted to bear against the top side surface of the bucket at a third zone of contact displaced from the front edge of the bucket upon an attachment of said second clamp to said first clamp;means for releasably attaching said second end of said arm of said second clamp to said first clamp subsequent to said receipt of the bucket front edge in said notch for capping said notch, said attached second clamp positioning said bearing surface of said second clamp against the top side surface of the bucket generally opposite said upper edge of said shoulder brace portion bearing against the underside surface of the bucket, each said bracket extending said elongated arm beyond the front edge of the bucket to position said blade in an earth-penetrating position, said respective zones of contact of said respective bearing surfaces clamping said tool to the bucket without modification thereto, an operation of the front loader urging said inlet of said blade into the earth with a forward movement of the front loader entrenching the earth, the entrenched earth entering said blade at said inlet and exiting said blade at said outlet for deposit in the bucket.