发明授权
- 专利标题： Tree push
- 专利标题（中）： 树推
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申请号： US591195申请日： 1984-03-19
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公开(公告)号： US4564173A公开(公告)日： 1986-01-14
- 发明人: Peter W. Atherton , George Spector
- 申请人： Peter W. Atherton , George Spector
- 专利权人： Atherton Peter W,George Spector
- 当前专利权人： Atherton Peter W,George Spector
- 主分类号： B66F1/06
- IPC分类号： B66F1/06 ; B66F3/24
摘要：
In combination with a bumper jack an apparatus for pushing a tree over when the tree is being cut down is provided so that when a base connected to the bumper jack is placed on a ground surface the apparatus is tipped at an angle between the ground surface and the tree a jack handle will operate a jack mechanism to rise along a jack post causing a support member to push a shaft through an aperture in a guide member until points on a tip member will contact the tree, pushing the tree over when the tree is being cut down.