| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve workability by reducing vertical vibration caused by the reciprocating motion of a piston and intercepting noise caused by the combustion of an engine, in an engine-type bush cutter. <P>SOLUTION: A tubular cover 5, which has an axial line in the longitudinal direction, is provided to surround the whole of the engine 10 being the power source of a hand-held type bush cutter, and inside the cover 5, the engine 10 is held with a plurality of vibration control devices 30. The inner space behind the cylinder in the cover 5 is demarcated by a partition plate 40, and the demarcated underside is used as a space for suction of air and the upper side is used as a space for discharge of air and exhaust gas. A muffler 16 is provided in the upper space for exhaust. The vibration control device 30 is constituted mainly of a spring 31, and is fixed by a bolt 36 and a spring holder 32. <P>COPYRIGHT: (C)2013,JPO&INPIT |
