发明名称 |
Locking system for extension members on portable lifts |
摘要 |
A locking system for extension members on portable lifts or the like has a wedge block with a jaw face on one side and a sloped wedge face on the opposite side engaging a complementing fixed sloped face so that when the wedge block is moved upwardly the complementing faces cause the wedge block to also move horizontally into clamping position by way of the jaw face. The wedge block is moved upwardly responsive to turning of a screw threaded into the block.
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申请公布号 |
US5667352(A) |
申请公布日期 |
1997.09.16 |
申请号 |
US19940228798 |
申请日期 |
1994.04.18 |
申请人 |
GENIE INDUSTRIES |
发明人 |
CURTIN, RICHARD M.;SMITH, PAUL K.;KRAEMER, MATTHEW G. |
分类号 |
B66F9/075;(IPC1-7):B66C23/04 |
主分类号 |
B66F9/075 |
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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