US Patent 7828489 Keyboard with a pair of pivotable keying modules

A computer keyboard incorporates a base member, a keying module and a spacing member coupled therebetween. The spacing member is pivotable over a range of angles to allow the keying module to be retained at a range of discrete, desired angles above a support structure such as a desktop. An embodiment incorporates two such assemblies linked together by a sliding member, further allowing the keying modules to be spaced apart laterally from each other by a desired distance. Another embodiment incorporates a hinged linking member, allowing the keying modules to also be angled with respect to each other about an axis normal to the support plane.