Breakaway keyboard
    10.
    发明授权
    Breakaway keyboard 失效
    BREAKAWAY键盘

    公开(公告)号:US5055839A

    公开(公告)日:1991-10-08

    申请号:US451479

    申请日:1989-12-15

    IPC分类号: G06F3/02 G06F1/16

    CPC分类号: G06F1/16 Y10T74/20636

    摘要: A system which is physically oriented in a vertical plane, is attached to a wall, and has a hinged keyboard. The keyboard is attached to the system solely by a hinge which has at least three positions. The hinge has a closed position to minimize space when the system is not used, an open position during normal use, and a breakway position to release the keyboard when excessive pressure is applied. The breakway keyboard eliminates damage caused by excessive pressure placed on the keyboard due to a person leaning on the board.