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# SHEET MATERIAL ELASTICITY ADJUSTING METHOD, FORCE SENSOR, AND SHEET MATERIAL

Foreign code F170009282 (S2016-0686-N0) Nov 7, 2017 WIPO 2017JP015343 WO 2017179716 Apr 14, 2017 Oct 19, 2017 P2016-082472 (Apr 15, 2016) JP SHEET MATERIAL ELASTICITY ADJUSTING METHOD, FORCE SENSOR, AND SHEET MATERIAL According to the present invention, a desired modulus of elasticity is designed using a sheet material having incisions in a kirigami structure. A stiffness constant K1 or a Young's modulus E1 of a sheet starting material is adjusted to a desired value by forming alternating incisions in a kirigami structure, on the basis of a relational expression K1=(α/2N) × E × d3h/w3 or E1=α(d/w)4 × E in an initial deformation region in which in-plane deformation is maintained, where w is the width of the incisions in a first direction, d is the arrangement pitch thereof in a second direction perpendicular to the first direction, and N is an incision repeat unit number in the second direction, and appropriately selecting the values of the incision width w, the pitch d and the repeat unit number N. Here, E is the Young's modulus of the constituent material of the sheet starting material before incisions have been made, h is the thickness of the sheet starting material, and α is a numerical coefficient. [claim1]1. The seat material is prepared, In the aforementioned seat material, the relational expression which is applied to the early deformation territory where deformation inside the surface is maintainedK1= (.alpha./2N) xExd (3) h/w (3), orE1=.alpha. (d/w) (4)xEOf on the basis, width to 1st direction w, 1st direction arrangement pitch to the 2nd direction which crosses forms the cut of cutting paper structure of the mutual difference where the number of repetition to d and the aforementioned 2nd direction units is N, here, as for K1 rigidity constant, as for E young's modulus before the cut of the constitution material of the aforementioned seat material, as for h thickness of the aforementioned seat material, as for I it is numerical factor, Rigidity constant K1 or young's modulus E1 is adjusted set point by the fact that value description above w, d, and N is selected, The elastic adjustment method of featuring thing.[claim2]2. The aforementioned seat material is the seat of the organism conformity material, Forming the cut in the aforementioned seat on the basis of the aforementioned relational expression, it produces the organism seat of modulus of elasticity of desire,In the claim 1 which features thing elastic adjustment method of statement.[claim3]3. The seat which possesses the cut of the cutting paper structure which was formed alternately and, The retention expedient which keeps the measuring object and,Being the fourth sensor which it possesses, As for the aforementioned fourth sensor, in the early deformation territory where deformation inside the surface of the aforementioned seat is maintained,Fc=.alpha.x.beta.xExd (2) h (3)/w (3)So possessing the load threshold which is displayed, As for E young's modulus before the cut of the constitution material of the aforementioned seat, as for w width to 1st direction of the aforementioned cut, as for d the aforementioned 1st direction pitch of the cut of the aforementioned cutting paper structure to the 2nd direction which crosses, as for h thickness of the aforementioned seat, as for .alpha.x.beta. the fourth sensor which features that it is numerical factor.[claim4]4. The distortion gauge which was formed at least to the portion of the surface of the aforementioned seat and, The measurement equipment which measures the resistance of the aforementioned distortion gauge and,In the claim 3 which features that furthermore it possesses, measures the weight of measuring object ones inside the range of aforementioned load threshold the fourth sensor of statement.[claim5]5. Being the seat material which possesses the cut of the cutting paper structure which was formed alternately, When width to 1st direction of the aforementioned cut pitch of the aforementioned cut to w, the aforementioned 1st direction and the 2nd direction which crosses the thickness of d and the aforementioned seat material the number of repetition of the aforementioned cut to h and the aforementioned 2nd direction units young's modulus before the cut of the constitution material of N and the aforementioned seat material is designated as E, as for elasticity of the aforementioned seat material, in the early deformation territory where deformation inside the surface is maintained, making use of numerical factor IK1= (.alpha./2N) xExd (3) h/w (3), orE1=.alpha. (d/w) (4)xEIn order so the rigidity constant to possess K1 which is decided or young's modulus E1, the seat material which features that it is adjusted.[claim6]6. In the aforementioned early displacement territory where displacement inside the surface is maintained to expand the aforementioned seat material, in the aforementioned 2nd direction, making use of numerical factor I,.delta.c=.beta.x2Nxh (2)/dI [c] =.Delta.c/(2Nxd) =.beta.xh (2)/d (2)So the critical extension quantity .Delta.c which is decided or criticality it is warped and I [possesses c]In the claim 5 which features thing the seat material of statement. OCHANOMIZU UNIVERSITY OKUMURA KO ISOBE MIDORI TAKEI ATSUSHI A61L  27/50      Materials characterised by their function or physical properties A61L  31/14      Materials characterised by their function or physical properties C12M   3/00      Tissue, human, animal or plant cell, or virus culture apparatus C12N   5/07      Animal cells or tissues G01L   1/04      by measuring elastic deformation of gauges, e.g. of springs (WO2017179716)National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JP KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW EAPO: AM AZ BY KG KZ RU TJ TM EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG