| 发明名称 |
SINGLE PIECE TREE SHEAR BLADE HAVING CYLINDRICALLY CURVED CUTTING PORTION METHOD OF MAKING SAME |
| 摘要 |
<p>A tree shear blade is formed by pressing a pre-shaped flat metal plate or blank into a die shaped to turn up opposite side and rear tabs of the blank to form mounting portions of the blade and to cylindrically curve a central portion of the blank to form a cutting portion of the blade. The side and rear tabs are then welded together.</p> |
| 申请公布号 |
CA1060317(A) |
申请公布日期 |
1979.08.14 |
| 申请号 |
CA19770289793 |
申请日期 |
1977.10.28 |
| 申请人 |
DEERE & COMPANY |
发明人 |
DUNN, JAMES K. (III);REDMAN, ANDREW P.;TUCKER, LEE E. |
| 分类号 |
A01G23/087;B21D53/64;B23P15/40;(IPC1-7):01G23/08;23P15/40 |
主分类号 |
A01G23/087 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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