To provide a foldable boom having self-extension force and two-way stability that allows self-holding in two forms of a folded form and an extended form.SOLUTION: A plurality of units of cylindrical components 10 having elasticity are connected in one direction via a flexible first hinge element 101. The cylindrical components 10 are each divided into two parts: a first elastic deformation element 11 and a second elastic deformation element 12, by a face passing through a central axis of a boom main body 100 in an extended form. The first elastic deformation element 11 and the second elastic deformation element 12 are connected via a flexible second hinge element 102. The first elastic deformation element 11 can stably hold two forms that are curved to the same side in an extension direction and a direction orthogonal to the extension direction, and the second elastic deformation element 12 can stably hold two forms that are curved in the extension direction and an opposite direction to the extension direction. The cylindrical components 10 are configured such that the first elastic deformation element 11 and the second elastic deformation element 12 are alternately arranged and are folded into a zig-zag shape when they are folded.SELECTED DRAWING: Figure 1

    【課題】自己伸展力があり,さらに、折り畳み形態及び伸展形態の2形態で安定して自己保持可能な双安定性を備えた折り畳みブームを提供する。【解決手段】弾性を有する複数の単位の筒状構成要素10が、可撓性の第1のヒンジ要素101を介して一方向に連結され、各筒状構成要素10は、伸展形態のブーム本体100の中心軸を通る面で第1の弾性変形要素11と第2の弾性変形要素12に2分割され、第1の弾性変形要素11と第2の弾性変形要素12が可撓性の第2のヒンジ要素102を介して連結され、第1の弾性変形要素11は、伸展方向と、伸展方向と直交方向に同じ側に湾曲する2形態を安定して保持可能で、第2の弾性変形要素12は伸展方向と伸展方向に逆方向に湾曲する2形態を安定して保持可能とし、各筒状構成要素10が、第1の弾性変形要素11と第2の弾性変形要素12とが交互に配列され、折り畳み時にはジグザグ状に折り畳む構成となっている。【選択図】 図1


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    Title :

    FOLDABLE BOOM


    Additional title:

    折り畳みブーム


    Contributors:

    Publication date :

    2021-04-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS / F16S CONSTRUCTIONAL ELEMENTS IN GENERAL , Konstruktionselemente allgemein



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