[problem] By additionally providing a simple structure in excavating bucket, appropriate depth in the ground of to generate a crack to provide a power shovel bucket to facilitate the solution soil and roots cut work around the roots of trees are. A plurality of root cut for nails 2A, 2B and can be arranged side by side in parallel with the side plate 11 of the bucket 1 is supported in the bucket. Tip portion of the root cutting pawl can be drawn from the distal end surface of the bucket to the forward projecting, performing activation operations of the roots is this tip part of the protruding roots cut pawl tore scraping the ground and the roots. A plurality of roots cut pawl is supported to a raised or lowered capable buckets in the shaft to the base, and has a fastening means of the raised or lowered state.BACKGROUND 2【課題】掘削用バケットに簡易な構成を付設することによって、地盤に適当な深さの亀裂を発生させて樹木の根の周囲の解土や根きり作業を容易化するパワーショベルのバケットを提供する。【解決手段】複数枚の根きり用爪2A、2Bをバケット1の側板11と平行に並設してバケットに支持する。根きり用爪の先部はバケットの先端面より前方向へ延伸して突出し、この突出した根きり用爪の先部で地面や根を掻き裂いて根の活性化作業を行う。複数枚の根きり用爪は基部を軸に起倒可能にバケットへ支持され、起倒状態の固定手段を有する。【選択図】図2
