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    • 3. 发明授权
    • Curved, inflated, tubular beam
    • 弯曲,膨胀,管状梁
    • US5421128A
    • 1995-06-06
    • US181024
    • 1994-01-14
    • Garrett C. SharplessGlen J. Brown
    • Garrett C. SharplessGlen J. Brown
    • B64C3/30E04C3/00E04C3/29E04C3/46E04H15/20E04G11/04
    • B64C3/30D04C1/06E04C3/005E04C3/29E04C3/46E04H15/20D10B2403/02411D10B2403/0243
    • A curved, inflated, tubular beam consists of braided fibers and axial fibers on an elastomeric barrier. The construction can be accomplished on a short, straight mandrel. The curvature along the beam can be varied to suit the design needs. The angle of the braid in the bias fibers determines the inflated curvature when axial fibers situated within the braid along the inside of the curvature constrain the elongation on the inside of the curvature. The curved shape can be reinforced by having tape cemented to the outside of the inflated tube. While very small and very large tubes can be perfected for a range of inflation pressures and beam strengths, the preferred embodiment is a 12 3/4-inch diameter tube, 60 feet long forming an arch for a tent 30 feet wide and 24 feet high.
    • 弯曲的,膨胀的管状梁由弹性体屏障上的编织纤维和轴向纤维组成。 该结构可以在短直的心轴上完成。 梁的曲率可以根据设计需要而变化。 当偏心纤维内的编织物中的轴向纤维沿着曲率的内侧限制了曲率内侧的伸长时,偏心纤维中的编织物的角度决定了膨胀曲率。 弯曲的形状可以通过将胶带胶合到充气管的外部来加强。 虽然对于一定范围的充气压力和梁强度来说,非常小而非常大的管可以被完善,但是优选的实施例是直径为12英寸/ 4英寸的管,60英尺长的管,形成用于30英尺宽和24英尺高的帐篷的拱 。