A walk-behind work machine in which vibration produced by the driving of an engine is not readily transmitted to an operating handle. The work machine includes a work-machine body (11) having a plurality of mounting parts (31 - 34) to which an engine (15) is joined. The mounting parts include a high-rigidity mounting part (31) positioned at a maximally rigid part (24) on the work-machine body, and other mounting parts (32 - 34) exclusive of the high-rigidity mounting part. The engine is joined securely to the other mounting parts and is joined more loosely to the high-rigidity mounting part than to the other mounting parts.本發明揭示一種後推式工作機械,在該後推式機械中,由一引擎之驅動而產生之振動未輕易傳送至一操作把手。該工作機械包含一工作機械本體(11),其具有複數個安裝部件(31至34),一引擎(15)係經結合至該等安裝部件(31至34)。安裝部件包含被定位於該工作機械本體上之一剛性最高部件(24)處之一高剛性安裝部件(31),且其他安裝部件(32至34)不包括該高剛性安裝部件。該引擎係經穩固地結合至該等其他安裝部件且比結合至該等其他安裝部件係較為鬆散地結合至該高剛性安裝部件。10...割草機11...本體12...左前輪及右前輪13...左後輪及右後輪15...引擎15b...附接凸緣16...操作把手16a...操作把手之端部17...支架18...高度調整手柄18a...高度調整手柄之一端18b...高度調整手柄之一端21...手柄附接位置22...通孔23...環狀凸緣23a...凸緣表面24...工作機械本體上之剛性最高部件25...位置31...安裝部件32...安裝部件33...安裝部件34...安裝部件
