发明名称 |
Collapsible fixture for manufacture of tunnel tubes |
摘要 |
An improved collapsible fixture for fabrication of tunnel modules and tunnel sections for building underwater tunnel tubes is provided. The fixture has a series of shell-like support members along its length, each member having a stationary base portion, two rotatable side portions and a connecting foldable linkage portion. A common truss is connected to each of the foldable linkage portions and is activated by a plurality of hydraulically operated cylinders connected to the wheel core member of the fixture. In order to collapse the fixture, moveable radial spoke members in the shell-like support members are connected to sliding plate members which are moveably attached to hub plates on the wheel core member.
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申请公布号 |
US4406151(A) |
申请公布日期 |
1983.09.27 |
申请号 |
US19810256729 |
申请日期 |
1981.04.23 |
申请人 |
AMCA INTERNATIONAL CORPORATION |
发明人 |
SIMONSEN, OLE F.;LEE, WINING A.;CHAN, HUNG K. P. |
分类号 |
E02D29/073;(IPC1-7):B21J13/02 |
主分类号 |
E02D29/073 |
代理机构 |
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代理人 |
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主权项 |
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