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PRUNING TOOL
专利权人:
BUCKLES J,US
发明人:
BUCKLES J,US
申请号:
USD3721004
公开号:
US3721004(A)
申请日:
1972.04.07
申请国别(地区):
美国
年份:
1973
代理人:
摘要:
A pruning tool comprising an elongated hollow tube, which may be in sections, a cutter on one end of the tube having a pivoted cutting element, a piston and cylinder at the other end of the tube and a flexible cable passing through the center of the tube and connected to the piston and cylinder at one end of the cutting element at the other end wherein the cutting element is operated by applying tension to the cable by means of the piston and cylinder. Centering means are provided for the cable so that the cable, when tensioned, stresses the tube only in compression, without introducing any substantial bending moment.
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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