发明名称 |
FATIGUE-RESISTANCE SHEET SLITTING METHOD AND RESULTING SHEET |
摘要 |
<p>A sheet of material ( 111 ) having a plurality of bend-inducing structures ( 113 ) configured and positioned to produce bending along a bend line ( 115 ). The bend-inducing structures ( 113 ) have arcuate return portions ( 122 ) extending from opposite ends ( 121 ) back along the bend-inducing structures ( 113 ) toward the other return portion ( 122 ) and each return portion ( 122 ) has a length dimension and a radius of curvature reducing stress concentrations. Preferably, the length dimension of the arcuate return portion ( 122 ) is in excess of twice the thickness. The lateral distance, LD, to which the bend-inducing structures ( 113 ) is formed in the sheet away from the bend line ( 115 ) is preferably minimized by small radius arcs ( 125 ) which connect the return portions ( 122 ) to the remainder of the bend-inducing structures ( 113 ). A method of forming a structure ( 131 ) from a sheet of material ( 111 ) to resist cyclical loading is also disclosed, as is a method to increase the fatigue resistance of a structure ( 131 ) formed by bending a sheet of material ( 111 ) along a bend line ( 115 ) having a plurality of bend-inducing structures ( 113 ).</p> |
申请公布号 |
EP1773523(A2) |
申请公布日期 |
2007.04.18 |
申请号 |
EP20050773443 |
申请日期 |
2005.07.12 |
申请人 |
INDUSTRIAL ORIGAMI, LLC |
发明人 |
DURNEY, MAX, W.;PENDLEY, ALAN, D.;KOCH, JUSTIN |
分类号 |
B21D28/26;B21D5/00;B21D35/00 |
主分类号 |
B21D28/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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