发明授权
- 专利标题： Repairable guide bar for tree harvesters
- 专利标题（中）： 树木收割机修理导杆
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申请号： US604613申请日： 1990-10-26
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公开(公告)号： US5052109A公开(公告)日： 1991-10-01
- 发明人: James L. Vanderzanden , Christopher D. Seigneur
- 申请人： James L. Vanderzanden , Christopher D. Seigneur
- 申请人地址： OR Portland
- 专利权人： Blount, Inc.
- 当前专利权人： Blount, Inc.
- 当前专利权人地址： OR Portland
- 主分类号： A01G23/091
- IPC分类号： A01G23/091 ; B27B17/02
摘要：
A guide bar for a mechanical harvester wherein the guide bar is repairable after bending. The guide bar is provided with a pliable section of lowered hardness in a limited zone between a mounting bracket and the principal cutting portion of the bar. A hinge area is thereby created in the zone area to permit bending of the bar without breaking. Reduced hardness is tolerated in the zone area where the least cutting action is encountered.
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