Patent ID: 8053697

Claim:
A linkage assembly set for coupling a plurality of keycaps to a keyboard base of a keyboard, said linkage assembly set comprising a plurality of linkage assemblies and first and second bridging elements, wherein: each of said linkage assemblies includes intersecting first and second link levers that are interconnected pivotally; said first link levers in each of said linkage assemblies are connected to one another by virtue of said first bridging element to be arranged in a row; said second link levers in each of said linkage assemblies are connected to one another by virtue of said second bridging element to be arranged in a row; said first link lever includes a female element having a first opening formed in one of upper and lower surfaces of said first link lever, and said second link lever includes a flexible male element outwardly protruding from a lateral surface of said second link lever; and said male and female elements are configured such that after said male element is elastically deformed to be pressed into said female element via said first opening, said male element is restored to its original form to be limited in said female element, and said first and second link levers are interconnected pivotally.