发明名称 |
CONTACT STIFFENERS FOR STRUCTURAL SKINS |
摘要 |
An internal stiffening member of varying configurations in which the stiffening elements support the skin using a compression-only load path is disclosed. In the preferred embodiment, the stiffening element has a peripheral edge that is adapted to be press fit into contact with the skin. The stiffening member may be held in place by various retention devices. Another configuration is a slip-in rib having a flange with a peripheral channel in which a filler material is disposed. The rib is inserted into an assembled structural box beam, and the filler material is used to fill any gaps between the slip-in rib and the interior surface of the structural box beam. The filler material is preferably an expandable material, such as an expandable foam-type material. However, in situations where a slip-in rib forms a primary structural rib, the filler material is preferably a structural adhesive or liquid shim material. A solid adhesive or filler would not crush under the clamping forces from fasteners or bolts at localized fitting attachments. |
申请公布号 |
EP1616061(A4) |
申请公布日期 |
2009.04.29 |
申请号 |
EP20040714198 |
申请日期 |
2004.02.24 |
申请人 |
BELL HELICOPTER TEXTRON INC. |
发明人 |
HETHCOCK, JAMES, DONN;JONES, RODNEY, H. |
分类号 |
E04C1/00;B64C1/00;B64C1/12;B64C3/18;E04C;F16S1/10 |
主分类号 |
E04C1/00 |
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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