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HEDGE TRIMMER AND A BLADE THEREFORE
专利权人:
Colin Duffy
发明人:
Colin Duffy,Martin Lugert
申请号:
US13394921
公开号:
US20120167395A1
申请日:
2009.09.09
申请国别(地区):
US
年份:
2012
代理人:
摘要:
A blade 1 for a hedge trimmer having a long axis and comprising a plurality of cutting teeth, each tooth having a longitudinal axis extending laterally away from the long axis of the blade 1, each cutting tooth comprising a root and a tip and opposing sides extending between the root and the tip, characterised in that at least one of the cutting teeth comprises a special tooth which is sharpened along at least one side to form a cutting edge, in which a first portion of the cutting edge is bevelled such that a tangent line to the first portion is inclined at an angle of between 1 degrees and 6 degrees relative to the longitudinal axis of the tooth, and a second portion of the cutting edge closer to the tip of the tooth than the first portion and which is bevelled such that a tangent line to the second portion is inclined at an angle relative to the longitudinal axis of the tooth of between 8 degrees and 25 degrees.
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