发明名称 |
A ROTARY SOIL ENGAGING MEMBER AND A MATERIAL FOR USE THEREIN |
摘要 |
A rotary soil engaging member (20, 30) for use in treating soil comprises a soil engaging peripheral surface made of a resilient cellular material, such as microcellular polyurethane. The material has a shore hardness from 5 to 50 and a ball rebound test parameter of 30-80 %. A composite material for use in such a soil engaging member comprises a reinforcing web of, e.g. braided polypropylene and a resilient cellular material such as microcellular polyurethane surrounding the web. In another aspect a method of making such a soil engaging member comprises the steps of providing a mould, arranging a plurality of retaining members in the mould, arranging the reinforcing web around the retaining members, injecting resilient cellular material into the mould and withdrawing the retaining members from the mould.
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申请公布号 |
WO0232209(A1) |
申请公布日期 |
2002.04.25 |
申请号 |
WO2001GB04607 |
申请日期 |
2001.10.16 |
申请人 |
SIMBA INTERNATIONAL LTD.;WRIGHT, PHILIP;CREYKE, CHARLES |
发明人 |
WRIGHT, PHILIP;CREYKE, CHARLES |
分类号 |
A01B29/04;(IPC1-7):A01B29/04 |
主分类号 |
A01B29/04 |
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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