PROBLEM TO BE SOLVED: To provide an attachment which can carry out a freezing damage countermeasure for an orchard by using a small-sized hydraulic shovel and an orchard bottom processing method using the same.SOLUTION: An attachment 20 comprises: a connection part 21 which is capable of being mounted to a hydraulic breaker body 10 arranged at a tip part of an operation arm 7 of a hydraulic shovel 1 in which the operation arm 7 is disposed on a traveling vehicle body 2 a pair of insertion members 30 which are arranged at both sides of the connection part 21, extend in a direction of separation from the tip part of the operation arm 7, and are inserted into soil around bottom of a chestnut tree T1 and a tabular member 40 which is arranged at each of the tip parts of the insertion members 30, extends in a direction crossing the insertion direction of the insertion member 30, and cuts roots of the chestnut tree T1. The attachment 20 is moved to a surface in front of the chestnut tree T1 by the operation arm 7 to be deeply inserted into a ground, cuts roots in the ground by using the tabular member 40, and crushes soil between the adjacent insertion members 30.COPYRIGHT: (C)2014,JPO&INPIT【課題】小型油圧ショベルを用いて果樹の凍害対策を実施可能なアタッチメント、及びこれを用いた果樹根元処理方法を提供する。【解決手段】アタッチメント20は、走行車体2に操作アーム7が設けられた油圧ショベル1の操作アーム7の先端部に取り付けられた油圧ブレーカ本体10に装着可能な連結部21と、連結部21の両側に設けられて操作アーム7の先端部に対して離反する方向に延びてクリの樹T1の根元周辺の土壌に挿入される一対の挿入部材30と、挿入部材30の各先端部に設けられ挿入部材30の挿入方向に対して交差する方向に延びてクリの樹T1の根を切断する板状部材40とを有する。アタッチメント20は、操作アーム7を介してクリの樹T1の手前側の地表に移動されて地中深く差し込まれ、板状部材40によって地中の根を切断するとともに隣接する挿入部材30間の土壌を破砕する。【選択図】 図1
