Modularly expandable desktop keyboard
    11.
    发明授权
    Modularly expandable desktop keyboard 失效
    模块化可扩展的桌面键盘

    公开(公告)号:US4739451A

    公开(公告)日:1988-04-19

    申请号:US948280

    申请日:1986-12-31

    申请人: Lawrence M. Kuba

    发明人: Lawrence M. Kuba

    摘要: A modularly expandable keyboard has expansion modules which are integrated into an elementary keyboard by locking tongues inserted in depressed tracks in the modules and held in place by detents in the attached modules. The detent mechanisms are formed integrally with the housings of the modules and are unstressed when fully engaged. An electrical interconnect plug integrates the electrical busses of attached modules. Modules can be attached to either right or left and additional modules can be attached to already attached modules indefinitely.