发明名称 |
Method of telescoping a crane jib, apparatus for implementing the method, and a crane jib constituting an application thereof |
摘要 |
The invention relates an apparatus for hoisting and handling equipment wherein the apparatus includes locking members having a locking block (30) carried by each telescopic element and including clamping member which is clamped in a rest position, an immobilization piece (40) carried by each element outside the element carrying a block configured to cooperate with the clamping member.
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申请公布号 |
US6474486(B1) |
申请公布日期 |
2002.11.05 |
申请号 |
US20000709736 |
申请日期 |
2000.11.13 |
申请人 |
P P M |
发明人 |
BARANIAK ROBERT |
分类号 |
B66C23/687;B66C23/693;B66C23/70;(IPC1-7):B66C23/687 |
主分类号 |
B66C23/687 |
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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