Portable working machine
    4.
    发明授权
    Portable working machine 有权
    便携式工作机

    公开(公告)号:US07520276B2

    公开(公告)日:2009-04-21

    申请号:US10581105

    申请日:2003-12-09

    IPC分类号: B28D1/04

    摘要: A portable working machine comprising a tool unit (1) with a disc guard and a circular tool (3), and a machine unit (2) with a filter system (10), an internal combustion engine (11) with an engine cylinder (13) with bore (12) having a centre line (30), a crankshaft (14) and a crankcase (15), a fuel tank (17), a muffler (18) with an entrance port (46) provided in the rear side of the muffler and facing an exhaust port (47) of the cylinder, handles (19, 20) controls (21, 22) and supports (23, 24) on the underside of the machine unit for allowing upright positioning of the machine on a flat ground. The cylinder bore (12) is inclined forwards in a direction towards the tool unit, such that the centre line (30) of the cylinder bore forms a tilt angle larger than zero, in the direction, to a perpendicular to any or both of the following lines: (a) a base line (33) which is a line coinciding with a horizontal surface on which the machine is resting in an upright position, when the supports on the underside of the machine unit contact the surface, and (b) a tangential line (33′) extending from a peripheral point of the tool, on the lower part of the tool when the machine has an upright position, to the bottom side of a rear support of the machine unit.

    摘要翻译: 一种便携式工作机,包括具有盘保护装置和圆形工具(3)的工具单元(1)和具有过滤系统(10)的机器单元(2),具有发动机气缸的内燃机 13),具有中心线(30)的孔(12),曲轴(14)和曲轴箱(15),燃料箱(17),具有设置在后部的入口(46)的消声器 消音器的一侧并且面向气缸的排气口(47),在机器单元的下侧上的手柄(19,20)控制器(21,22)和支撑件(23,24),用于允许机器直立定位 平地 气缸孔(12)沿着朝向工具单元的方向向前倾斜,使得气缸孔的中心线(30)在垂直于任何或两者的垂直方向上形成大于零的倾斜角 (a)当机器单元的下侧的支撑件接触表面时,该基线(33)是与机器垂直放置的水平面重合的线,(b) 当机器具有直立位置时,从刀具的周边点延伸到刀具的下部的切线(33')到机器单元的后支撑件的底侧。