Flexible hinge with a large spatial stroke in a planar composite structure

摘要

The present invention discloses a flexible hinge having a spatially large stroke in a plane composite structure including a rectangular plane unit for realizing an out-of-plane twisting function and a forked plane unit for realizing an in-plane rotation function. do. The forked plane unit is a forked structure obtained by crossing two flexible straight girder thin plates at an angle. The rectangular plane unit and the forked plane unit are connected by an outer coupling type or an inner fitting type. In the present invention, a flexible hinge having a conventional planar structure can only be equivalent to a low-order pair of hinges having a large stroke with one degree of freedom, and a multi-degree-of-freedom flexible hinge equivalent to a conventional LEMs flexible mechanism has a small overall stroke. It has advantages such as simple structure, easy processing, easy analysis and calculation, and equivalent to spatial multi-degree-of-freedom flexibility with a large stroke. [Selection diagram] Fig. 1