发明名称 |
Boom arm support lock |
摘要 |
A boom arm safety lock including a pivotally-mounted boom arm and a fluid cylinder assembly for pivoting the arm up and down. A lock bar is pivotally mounted adjacent the boom arm for upwardly supporting the boom arm in the event the fluid in the cylinder assembly is exhausted, and the boom arm will therefore remain in the raised position.
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申请公布号 |
US4039093(A) |
申请公布日期 |
1977.08.02 |
申请号 |
US19760718940 |
申请日期 |
1976.08.30 |
申请人 |
J. I. CASE COMPANY |
发明人 |
SCHMITZ, JR., FLOYD ALBERT;SMITH, WAYNE GERALD |
分类号 |
B66C23/88;(IPC1-7):B66C23/00 |
主分类号 |
B66C23/88 |
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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