发明名称 |
Two-way extendable crane trolley |
摘要 |
A two-way horizontally extendable trolley 22 comprising a trolley frame 51 and wheels 52 for supporting trolley frame 51, a first horizontally elongated trailer frame 54 slidably mounted on frame 51, and a second horizontally elongated trailer frame 55 slidably mounted on trolley frame 51, said trailer frames 54 and 55 each having a first end extending beyond an end of frame 51, and auxiliary wheels 56 and 57, respectively, for supporting said first ends. Trolley 22 includes: means for horizontally extending trailer frames 54 and 55 outwardly from the trolley frame 51 and retracting trailer frames 54 and 55 inwardly toward trolley frame 51; hoisting means mounted on trolley frame 51; auxiliary hoisting means mounted on trailer frames 54 and 55; and means for driving wheels 52. Crane 10 for use with trolley 22 is also disclosed.
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申请公布号 |
US4360112(A) |
申请公布日期 |
1982.11.23 |
申请号 |
US19800191280 |
申请日期 |
1980.09.26 |
申请人 |
AMCA INTERNATIONAL CORPORATION |
发明人 |
BREWER, BRUCE L.;WEINGART, BROOKS E. |
分类号 |
B66C11/00;B66C17/06;(IPC1-7):B66C9/02 |
主分类号 |
B66C11/00 |
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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