| 摘要 |
PCT No. PCT/US96/09023 Sec. 371 Date Sep. 30, 1997 Sec. 102(e) Date Sep. 30, 1997 PCT Filed Jun. 6, 1996 PCT Pub. No. WO96/39323 PCT Pub. Date Dec. 12, 1996A collapsible portable boat with enhanced rigidity, comprising a main skeleton frame and hull, including an end stem section and gunwales connected to each other by a gunwale connecting means, further characterized in that the hull is of flexible material, a floor section affixed to that portion of the hull section which defines the bottom of the boat and which is disposed between the stringers and the flexible material of the hull, characterized in that the skeleton frame comprises a plurality of support stringers running the length of the boat along the bottom and sides of said boat, including support formers arranged transverse to said lengthwise support stringers, characterized in that the support stringers themselves comprise a plurality of short sectional support elements which are affixed to one another by means for maintaining tension between said short sections, and a means for developing tension between said skeleton structure and the outer flexible hull positioned between the flexible material of the hull and the skeleton, characterized in that the tension substantially prevents longitudinal hull flex.
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