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    • 3. 发明授权
    • Hydraulic tree trimmer
    • 液压树木修剪机
    • US5318081A
    • 1994-06-07
    • US21254
    • 1993-02-23
    • John Parkhurst
    • John Parkhurst
    • A01G3/08A01G23/087A01G23/06B27L1/00
    • A01G3/08A01G23/087Y10S83/928
    • A high reach self centering hydraulic tree trimmer which consists of first a carriage assembly. The carriage assembly consisting of a top plate and a bottom plate. The plates are separated by spacers and secured together with a plurality of fasteners. A pair of cutting blades are contained between the top plate and the bottom plate. The blades are reciprocal of each other and each have a front end, center region, back end, outer edge, inner edge and a cutting edge extending along the inside edge. The blades are self centering about an object to be cut by pivoting independently from each other They pivot about separate pivot points in the center region of the blades. A pivot pin or bolt is used as a pivot device extending from the top plate to the bottom plate. A hydraulic cylinder is used to operate the blades. The hydraulic cylinder is pivotally attached to the back ends of the blades. This operation causes the blades to pivot independently about the pivot points resulting in the cutting surfaces closing upon each other. There is included an attachment means connected to the carriage assembly for attaching the tree trimmer to a bucket or other lifting means on a tractor or other such vehicle. There is also an optional positioning apparatus for pivoting the tree trimmer for cutting trees, branches, limbs or brush at different angles.
    • 一种高达自动定心液压树木修剪器,由第一个支架组件组成。 托架组件由顶板和底板组成。 板由间隔件隔开并用多个紧固件固定在一起。 一对切割刀片包含在顶板和底板之间。 叶片彼此相互倒置,并且每个具有前端,中心区域,后端,外边缘,内边缘和沿着内边缘延伸的切割边缘。 叶片通过彼此独立地枢转而围绕待切割的物体自对中心。它们围绕叶片的中心区域中的分离的枢转点枢转。 枢轴销或螺栓用作从顶板延伸到底板的枢转装置。 液压缸用于操作叶片。 液压缸可枢转地附接到叶片的后端。 这种操作使得叶片围绕枢轴点独立地枢转,导致切割表面彼此闭合。 包括连接到托架组件的附接装置,用于将树木修剪器附接到拖拉机或其它这种车辆上的铲斗或其他提升装置。 还有一种可选的定位装置,用于枢转树木修剪器,以切割树木,树枝,四肢或刷子,以不同的角度。