Inventors:
Winslow Scott Burleson - Palo Alto CA
William Marvin Dyer - San Jose CA
Christopher Karl Eisbach - Mountain View CA
Derek Solomon Pai - Bellevue WA
Edwin Joseph Selker - Palo Alto CA
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
H01H 1352
H01H 1370
Abstract:
A keyboard apparatus is provided for small and lightweight computers and the like. Keyswitches and a keyboard assembly comprise a sheet member having a plurality of key faces fixed thereon in a conventional keyboard arrangement. A plurality of cutouts are provided in the sheet member, partially surrounding each key face. A living hinge member is provided in the sheet member at one side of each key face. Each living hinge member includes a base section, an intermediate section, and a key face section. The former two and the latter two sections each interface at a living hinge. Depressing the key face causes the key face section to pivot about the living hinges to operate a corresponding set of electrical contacts, indicating operation of the key. A conventional rubber spring may transmit the pivot motion of the key face to the electrical contacts. The living hinges are made to have a greater resilience and flexibility than those of the sections, such as by scoring, scribing, perforation, or other suitable treatment.