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公开(公告)号：US5004026A
公开(公告)日：1991-04-02
申请号：US417765
申请日：1989-10-06
IPC分类号： A01G23/081
CPC分类号： A01G23/081
摘要： An improved tree felling head that minimizes splintering of the butt ends of trees while felling them, and that also minimizes losing them off the felling head after they are cut. The felling head has retaining means for loosely retaining the trees cut or being cut within tree receiving cradles provided on the felling head.
摘要翻译： 一个改良的树木砍伐头，最大限度地减少了砍伐树木的对接端的分裂，同时最大限度地减少砍伐后的砍伐头。 砍伐头具有保持装置，用于松散地保留在设置在砍伐头上的树状接收托架内切割或切割的树。
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2.发明授权
公开(公告)号：US4690185A
公开(公告)日：1987-09-01
申请号：US820053
申请日：1986-01-21
IPC分类号： A01G23/091 , A01G23/08 , B27B5/14
CPC分类号： A01G23/091 , Y10T83/8867 , Y10T83/8871
摘要： A rim driven circular saw and a drive pinion rotatable about respective ones of a pair of spaced apart parallel axes wherein each of the saw and pinion having projections of gear tooth form about the outer periphery thereof with the teeth of one meshing with those of the other. The teeth on the saw each have a cutting edge set back from the normal intersection of the face and the top land of the teeth. The saw is journalled for rotation on a plate carried by a rigid frame and the plate has a thickness at least no greater than the kerf generated by the saw. The pinion is fabricated from a non-metallic substance such as nylon. Also disclosed is an accumulator type tree felling head incorporating, as the cutting device, a saw of the foregoing type.
摘要翻译： 轮辋驱动的圆锯和驱动小齿轮可围绕一对间隔开的平行轴线中的相应的一个旋转，其中每个具有齿轮齿的齿轮的小齿轮围绕其外周形成，其中一个齿与另一个啮合的齿 。 锯上的牙齿各自具有从牙齿的正面和牙齿顶部的正常交叉点返回的切割边缘。 锯被安装在由刚性框架承载的板上旋转，并且板具有至少不大于由锯产生的切口的厚度。 小齿轮由非金属物质如尼龙制成。 还公开了一种包括上述类型的锯的作为切割装置的蓄能器型树砍伐头。
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