公开(公告)号：US20030029705A1

公开(公告)日：2003-02-13

申请号：US10052667

申请日：2002-01-18

Applicant: Massachusetts Institute of Technology

Inventor： Jin Qiu ,  Alexander H. Slocum ,  Jeffrey H. Lang ,  Ralf Struempler ,  Michael P. Brenner ,  Jian Li

IPC: H01H057/00

CPC classification number: B81B3/0051 ,  B33Y70/00 ,  B33Y80/00 ,  B81B2201/016 ,  B81B2203/0109 ,  B81B2203/051 ,  H01H1/0036 ,  H01H1/24 ,  H01H50/005 ,  H01H59/0009 ,  H01H61/00 ,  H01H2001/0042 ,  H01H2061/006

Abstract: A bistable structure provided by the invention is characterized as including a deflection element that has mechanically constrained end points and a compliant span between the end points that is substantially free to deflect between two stable positions when a force is applied at a point along the span. The deflection element span is provided, as-fabricated, curved in one of the two stable positions and in a mechanically unstressed condition along the length of the span. The as-fabricated curve of the deflection element span includes a curve maxima at a point along the span length that is at least about null of the span length from the end points of the span. The deflection element span is constrained to substantially prohibit development of a second bending mode that is characteristic for the span as the element deflects between the two stable positions.

Abstract translation: 由本发明提供的双稳态结构的特征在于包括一个偏转元件，该偏转元件具有机械约束的端点和端点之间的顺应跨度，当在沿跨度的点施加力时，基本上自由地在两个稳定位置之间偏转。 偏转元件跨度设置成沿着跨度的长度在两个稳定位置中的一个中并且以机械无应力状态弯曲。 偏转元件跨度的制造曲线包括沿着跨度长度的点处的曲线最大值，其距离跨度端点的跨度长度的至少约1/4。 偏转元件跨度被限制为基本上禁止当元件在两个稳定位置之间偏转时跨度的特征的第二弯曲模式的发展。