| 摘要 |
PROBLEM TO BE SOLVED: To improve a helicopter collapsible deck by a simple and inexpensive method. SOLUTION: The helicopter collapsible deck (35) has at least one longitudinal member (40, 41) and at least one cross member (42) and these members are extended in a first direction (C) and a second direction (D) intersecting at points (43, 44) respectively. The cross member (42) is discontinuous at the points of intersection (43, 44) and the deck (35) further has anchoring devices (52, 53) for connecting the longitudinal members (40, 41) and the cross member (42) at the points of intersection (43, 44). The anchoring devices (52, 53) have at least one local permanent deformation section (54, 64) lying in a plane crosswise to the deck (35) and for dissipating the energy transmitted to the deck (35) in the event of impact. COPYRIGHT: (C)2007,JPO&INPIT
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