US 12,251,903 B2
Curved origami-based metamaterial, manufacturing method of the same, curved origami-based haptic module and method for producing active mechanical haptics
Hanqing Jiang, Hangzhou (CN); Zhuang Zhang, Hangzhou (CN); Luoqian Emu, Hangzhou (CN); and Zhenghao Xu, Hangzhou (CN)
Assigned to WESTLAKE UNIVERSITY, Hangzhou (CN)
Appl. No. 18/284,847
Filed by WESTLAKE UNIVERSITY, Hangzhou (CN)
PCT Filed Dec. 22, 2022, PCT No. PCT/CN2022/141058
§ 371(c)(1), (2) Date Sep. 28, 2023,
PCT Pub. No. WO2023/142806, PCT Pub. Date Aug. 3, 2023.
Prior Publication US 2024/0293991 A1, Sep. 5, 2024
Int. Cl. B31D 5/04 (2017.01); B25J 13/02 (2006.01); G06F 3/01 (2006.01)
CPC B31D 5/04 (2013.01) [B25J 13/025 (2013.01); G06F 3/014 (2013.01); G06F 3/016 (2013.01)] 32 Claims
OG exemplary drawing
 
1. A curved origami-based metamaterial, comprising:
a panel having a single curved crease extending in its longitudinal direction, which divides the panel into two facets at its two opposite sides;
the panel is configured to be folded along the single curved crease to form a folding angle between the two facets;
wherein, the folding angle is configured to be adjustable to achieve a variable stiffness when loaded in a vertical direction of the folded panel, covering positive stiffness to negative stiffness,
wherein the single curved crease is configured by a circular arc-shaped cutting slot at a portion thereof, and
wherein the single curved crease is configured by the following portions: two end extending portions, an intermediate extending portion, and two circular arc-shaped cutting slots, each of which connects its adjacent end extending portion and the intermediate extending portion.