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Invention Grant
US08141257B2 Hand-held reciprocating power saw 有权
手持往复动力锯

Hand-held reciprocating power saw
Abstract:
A hand-held reciprocating power saw (10) includes a reciprocation member (21) for reciprocatingly moving a working tool, a compensation mass (22), a motor-driven eccentric wheel (23) having a first eccentric (24) for reciprocatingly displacing the reciprocation member (21) and a second eccentric (25) for reciprocating the compensation mass (22) along an axis (A), with the outer surface (28) of the second eccentric (25) engaging in an opening (26) provided in the compensation mass (22) and defined by a circumferential wall (27), and an intermediate member (30) arranged between the circumferential wall (27) and the outer surface (28) of the second eccentric (25) at least in the contact regions (41, 42), between the circumferential wall (27) and the outer surface of second eccentric, with the intermediate member (30) having a first radial extension (R1) oriented parallel to the axis (A) and a second radial extension (R2) oriented perpendicular to the axis (A) and greater than the first radial extension (R1).
Abstract(Chinese):

手动往复动力锯（10）包括用于往复运动工作工具的往复运动构件（21），补偿质量块（22），具有第一偏心轮（24）的马达驱动偏心轮（23），用于往复移动 所述往复运动构件（21）和用于使所述补偿质量块（22）沿着轴线（A）往复运动的第二偏心轮（25）与所述第二偏心轮（25）的外表面（28）接合在开口（26）中， 在所述补偿质量块（22）中并且由周向壁（27）限定，并且至少在所述第二偏心轮（25）的所述周向壁（27）和所述外表面（28）之间布置的中间构件（30） 接触区域（41,42），位于周向壁（27）和第二偏心件的外表面之间，中间构件（30）具有平行于轴线（A）定向的第一径向延伸部（R1），第二径向 延伸（R2）垂直于轴线（A）定向并大于第一个ra 拨号扩展（R1）。

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