| 摘要 |
A chainsaw (1) comprises an internal combustion engine (3) having a cylinder (4) with a piston (5) connected to a crankshaft (6). The piston (5) has an upper surface at a distance D from the central axis of the crankshaft (6) measured along the longitudinal axis defined by the cylinder (4), when the piston (5) is in its top dead centre. The chainsaw (1) is further provided with a front handle (7), which central axis is disposed at a distance B from the central axis of the crank shaft (6) along an axis substantially perpendicular to a horizontal plane (13), the horizontal plane (13) being defined as the plane on which the chainsaw (1) may rest in an upright position when not operated. The chainsaw (1) also includes a throttle lever (9), which rear end is disposed at a distance C from the central axis of the crankshaft (6) along an axis substantially parallel to the horizontal plane (13). The cylinder (4) is inclined backwards, such that the angle between the longitudinal axis defined by the cylinder (4) and an axis perpendicular to the horizontal plane (13) is between 5 and 45° , and the chainsaw (1) further having a basic design such that the relation B/D is less than or equal to 1.7, so as to provide a low front handle (7). |
