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    • 30. 发明申请
    • CUTTING TOOLS
    • 切割工具
    • US20090188361A1
    • 2009-07-30
    • US12042438
    • 2008-03-05
    • Peter SimpsonRainer Glauning
    • Peter SimpsonRainer Glauning
    • B26D5/00
    • A01G3/053A01D34/135A01D34/30A01D34/37A01D34/408A01G2003/0461Y10T83/525Y10T83/536
    • The present invention relates to cutting tools, in particular, to control systems for cutters such as vegetation cutters, especially hedge cutters or trimmers (10). Hedge cutters (10) frequently suffer in use from a problem of blocked cutting blades when they encounter a twig or branch whose size or density exceeds the capacity of the blades. We describe a vegetation cutting apparatus (10) having a plurality of cutting blades (11,12), at least one of which blades (11,12) is drivable by means of an electric motor. At least one driven blade (11,12) is movable between two predefined points of maximum travel. The apparatus (10) comprises a control means which causes a change of direction in the movement of the at least one movable blade at a point intermediate the points of maximum travel in response to an event sensed by the control means.
    • 技术领域本发明涉及切割工具,特别涉及用于诸如植被切割器,特别是树篱刀或修剪器(10)的切割器的控制系统。 冲锋刀(10)经常遭受使用中的切割刀片的问题,当它们遇到尺寸或密度超过刀片容量的枝条或枝条​​时。 我们描述具有多个切割刀片(11,12)的植被切割设备(10),其中至少一个刀片(11,12)可以通过电动机驱动。 至少一个从动叶片(11,12)可在两个预定的最大行程点之间移动。 装置(10)包括控制装置,其响应于由控制装置感测到的事件,使至少一个可动刀片在最大行程点之间的点处的移动方向发生变化。