PROBLEM TO BE SOLVED: To provide a work machine effective for lessening fatigue of a worker working while holding an operation pole by suppressing vibration of a rotary tool acting as a vibration source as far as possible, thereby decreasing vibration transmitted to the operation pole.SOLUTION: There is provided a work machine 10 provided with a tool unit 30 having a rotary tool 36 attached to a tip end of a hollow operation pole 11, and a driving shaft 14 inserted into the operation pole 11 and connected its one end to a motor 20 mounted at a base end and the other end to the rotary tool 36. A soft elastic material 35 for eliminating vibration generated by the rotation of the rotary tool 36 is placed in a manner to coaxially surround bearings 33, 34 to support a driven shaft 14 of the rotary tool 36 at a tip end part of the operation pole 11 or bearings 33, 34 supporting the driven shaft 14 of the rotary tool 36 in a housing 31 of the tool unit 30.COPYRIGHT: (C)2014,JPO&INPIT【課題】振動源である回転工具の振動を極力抑制して操作ポールに伝わる振動を減少させることにより、操作ポールを把持して作業する作業者の疲労を軽減する作業機を提供する。【解決手段】作業機10は、中空の操作ポール11の先端部に組付けた回転工具36を有する工具ユニット30と、操作ポール11に挿入してその基端部に組付けた原動機20に一端を接続し他端を回転工具36に接続した駆動軸14とを備え、回転工具36の回転によって生じる振動を除去する柔軟弾性体35を操作ポール11の先端部にて回転工具36の従動軸14を支持する軸受33,34または工具ユニット30のハウジング31内にて回転工具36の従動軸14を支持する軸受33,34を同軸的に包囲して保持するように設けた。【選択図】図2
