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发明公开
CN102085543A 设计和制造精确折叠的高强度的抗疲劳的结构物的方法和用于该结构物的板材 无效 - 驳回

设计和制造精确折叠的高强度的抗疲劳的结构物的方法和用于该结构物的板材
摘要：
一种用于设计、制造和精确地折叠高强度的抗疲劳的结构物以及用于这种结构物的板材的工艺。这一技术包括沿着弯折线(45、245、345、445、543)精确地弯折板材(41、241、341、441、541)的方法以及把板材成形为有诸如切缝或凹槽(43、243、343、542)的缝间弯折条限定结构的方法。这些方法包括设计和随后分别成形穿透板材的、沿纵向延伸并有间隔的切缝或凹槽(43、243、343、542)的步骤，使板材(41、241、341、441、541)可被沿着弯折线(45、245、345、445、543)精确地弯折。缝间弯折条的形状和定向可增强其强度和抗疲劳强度，最佳的是，所用的切缝可使切缝这一侧的边缘(257、457)在弯曲过程中接触并支承在切缝那一侧的表面(255、455)。这种边缘对表面接触使得可产生沿着叠加在弯折线(45、245、345、445、543)上的虚拟支点的弯曲。本发明给出了适于产生边缘对表面接触支承和精确弯折的几个切缝(43、243、343、542)实施例，在这几个实施例中，开出切缝的板材用于生产各种三维结构物，还给出了各种设计和制造技术。
摘要（英）：

A process for designing and manufacturing precision-folded, high strength, fatigue-resistant structures and a sheet therefore. The techniques include methods for precision bending of a sheet of material (41, 241, 341, 441, 541) along a bend line (45, 245, 345, 445,543) and a sheet of material formed with bending strap-defining structures, such as slits or grooves (43, 243, 343, 443, 542), are disclosed. Methods include steps of designing and then separately forming longitudinally extending slits or grooves (43, 243, 343, 443, 542) through the sheet of material in axially spaced relation to produce precise bending of the sheet (41, 241, 341, 441,541) when bent along the bend line (45, 245, 345, 445, 543). The bending straps have a configuration and orientation which increases their strength and fatigue resistance, and most preferably slits or arcs are used which causes edges (257, 457) to be engaged and supported on faces (255, 455) of the sheet material on opposite sides of the slits or arcs. The edge-to-face contact produces bending along a virtual fulcrum position in superimposed relation to the bend line (45, 245, 345, 445, 543). Several slit embodiments (43, 243, 343, 443, 542) suitable for producing edge-to-face engagement support and precise bending are disclosed, as is the use of the slit sheets to produce various three-dimensional structures and to enhance various design and fabrication techniques.

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