【発明の名称】展開型トラス構造及びその展開同期装置

Japanese Patent JPH06104478

B2

PURPOSE:To reduce the weight of the title structure and improve the performance of an antenna and the like by expanding the structure with a tetrahedral truss structure forming 12 tetrahedrons as the basic structure. CONSTITUTION:A truss structure unit T in the expanded state is made a tetrahedral truss structure forming 6 tetrahedrons, each of which is determined by joints P1, P1 on both ends of each member 1, an apical joint P2 and the apical joint P2a of an inverted orthohexagonal pyramid sharing this member 1, and 6 tetrahedrons, each of which is determined by each joint P1 and three apical joints P2, P2a, P2a corresponding to the joint P1. With the unit T as a basic structure, 6 inverted orthohexagonal pyramids having respective joints P2a are formed outside the inverted orthohexagonal pyramid having the joint P2, and many other inverted orthohexagonal pyramids are further formed outside these 6 inverted orthohexagonal pyramids, thus forming a two-dimensionally expanding plate like truss structure TC with numerous orthohexagonal cells on its top face. The compatibility with the curved reflecting surface formed of reflecting membrane material is thereby heightened so as to improve the performance of an antenna and the like.

Osamu Muragishi
Junro Kato
Michihiro Natori

JP10430189A

December 21, 1994

April 24, 1989

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Kawasaki Heavy Industries, Ltd.

F16S5/00; B64G1/22; H01Q1/28; H01Q15/20; (IPC1-7): B64G1/22; F16S5/00

ＮＡＳＡＣｏｎｆｅｒｅｎｃｅＰｕｂｌｉｃａｔｉｏｎ２３６８，ＬＡＲＧＥＳＰＡＣＥＡＮＴＥＮＮＡＳＹＳＴＥＭＳＴＥＣＨＮＯＬＯＧＹ１９８４，（１９８５）ＮＡＳＡ（米）Ｈ．Ｇ．Ｂｕｓｈ，Ｃ．Ｌ．Ｈｅｒｓｔｏｍ，Ｐ．Ａ．ＳｔｅｉｎａｎｄＲ．Ｒ．Ｊｏｈｎｓｏｍ，「ＳＹＮＣＨＲＯＮＯＵＳＬＹＤＥＰＬＯＹＡＢＬＥＴＥＴＲＡＨＥＤＲＡＬＴＲＵＳＳＲＥＦＬＥＣＴＯＲ」、Ｐ２３７−２５０

Toshio Okamura

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