Provided is a movable tensegrity structure capable of performing bending operation, twisting operation, contracting operation, etc. by itself. The movable tensegrity structures (1, 1*, 10) is constituted by combining a plurality of rigid members (2, 11) and tension members (3, 12) for connecting the
Provided is a movable tensegrity structure capable of performing bending operation, twisting operation, contracting operation, etc. by itself. The movable tensegrity structures (1, 1*, 10) is constituted by combining a plurality of rigid members (2, 11) and tension members (3, 12) for connecting the end points (E, F) of the rigid members (2, 11), respectively. The tensegrity structure is characterized in that all or a part of the plurality of tension members (3, 12) is formed of a contraction-controllable member.
대표청구항▼
1. A movable tensegrity structure having a tubular and cylindrical shape, the tensegrity structure comprising: a plurality of rigid members; anda plurality of tension members each connecting an end of one of the plurality of rigid members and an end of another of the plurality of rigid members, the
1. A movable tensegrity structure having a tubular and cylindrical shape, the tensegrity structure comprising: a plurality of rigid members; anda plurality of tension members each connecting an end of one of the plurality of rigid members and an end of another of the plurality of rigid members, the plurality of rigid members and the plurality of tension members constituting the tubular and cylindrical shape of the tensegrity structure,wherein the tensegrity structure does not include a rigid member extending through the tubular and cylindrical shape in an internal space formed by the tubular and cylindrical shape,wherein a whole or a part of the plurality of tension members are made up of a contraction-controllable member, andwherein the tensegrity structure is bendable by contraction of the contraction-controllable member while maintaining the cylindrical shape. 2. The movable tensegrity structure of claim 1, wherein each of the plurality of rigid members is not surrounded by three members which are two other of the plurality of rigid members and one of the plurality of tension members connecting ends of the two other of the plurality of rigid members, and the one of the plurality of tension members in the three members is made up of the contraction-controllable member. 3. The movable tensegrity structure of claim 1, wherein three members which are two of the plurality of rigid members and one of the plurality of tension members connecting ends of the two of the plurality of rigid members do not surround other of the plurality of rigid members, and the one of the plurality of tension members in the three members is made up of the contraction-controllable member. 4. The movable tensegrity structure of claim 1, wherein the plurality of rigid members constitute a plurality of layers each of which is made up of a combination of a predetermined number of rigid members, and the plurality of layers are stacked in an axis direction. 5. The movable tensegrity structure of claim 4, wherein the predetermined number of rigid members of each of the plurality of layers are combined so as to make an internal space around the axis. 6. The movable tensegrity structure of claim 4, wherein adjacent two layers each have arrangements of the predetermined number of rigid members, and the arrangements of the adjacent two layers are in a mirror image relationship with each other. 7. The movable tensegrity structure of claim 4, wherein one of the plurality of tension members connects at least ends of rigid members belonging to a same layer of the plurality of layers. 8. The movable tensegrity structure of claim 4, wherein one of the plurality of tension members connects an end of a rigid member belonging to one of the plurality of layers and an end of a rigid member belonging to a layer which is adjacent to a layer which is adjacent to the one of the plurality of layers. 9. The movable tensegrity structure of claim 7, wherein one of the plurality of tension members connects ends of rigid members each of which exists in each boundary portion of adjacent two of the plurality of layers. 10. The movable tensegrity structure of claim 7, wherein one of the tension members which connects the ends of the rigid members is made up of a contraction-controllable member. 11. The movable tensegrity structure of claim 4, wherein the plurality of tension members made up of the contraction-controllable member are arranged to be inclined with respect to the axis direction. 12. The movable tensegrity structure of claim 1, wherein the contraction-controllable member is made up of polymer artificial muscle. 13. The movable tensegrity structure of claim 4, wherein the tensegrity structure is configured so that a part of one of the plurality of layers is contracted in the axis direction so as to bend the axis, by contracting the contraction-controllable member. 14. The movable tensegrity structure of claim 4, wherein the tensegrity structure is configured so that a whole of one of the plurality of layers is contracted in the axis direction, so as to twist the tensegrity structure about the axis, by contracting the contraction-controllable member. 15. The movable tensegrity structure of claim 4, wherein the tensegrity structure is configured so that the plurality of layers are contracted in the axis direction, so as to contract the tensegrity structure in the axis direction, by contracting the contraction-controllable member. 16. The movable tensegrity structure of claim 1, wherein the contraction-controllable member is contracted by application of an electric current. 17. A movable tensegrity structure having a tubular and cylindrical shape, the tensegrity structure comprising: a plurality of rigid members; anda plurality of tension members each connecting only two ends which are an end of one of the plurality of rigid members and an end of another of the plurality of rigid members, at least a part of the plurality of tension members being contraction-controllable,wherein the tensegrity structure does not include a rigid member extending through the tubular and cylindrical shape in an internal space formed by the tubular and cylindrical shape, andwherein the tensegrity structure is bendable by contracting a part or a whole of the contraction-controllable tension members while maintaining the cylindrical shape.
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이 특허에 인용된 특허 (11)
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