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Weed removal tool
专利权人:
Thomas Carlino
发明人:
Thomas Carlino
申请号:
US14446100
公开号:
US09095087B2
申请日:
2014.07.29
申请国别(地区):
US
年份:
2015
代理人:
摘要:
A high performance weed pulling tool for removing the entire weed including the root comprises a rigid frame with a foot, two opposing jaws, a pivoting lever arm and an elongated handle. One jaw is attached to the frame in fixed position and the other jaw is attached to the lever arm. The handle operates the lever arm to close the jaws together and grip the weed stem. The greater handle length relative to the lever arm length below the frame pivot point provides a large gain in gripping and lifting forces. The rear jaw also pivots on the lever arm to conform the jaw surfaces to the taper of the weed stem for maximum surface contact while textured jaw surfaces maximize grip stability. The jaws self-retract when the handle is released allowing tool operation to be repeated rapidly for long periods of time with low fatigue for the operator.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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