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    Time delay mechanism for pencil sharpener
    7.
    发明授权
    Time delay mechanism for pencil sharpener 失效
    铅笔刀延时机制

    公开(公告)号：US3937239A

    公开(公告)日：1976-02-10

    申请号：US559908

    申请日：1975-03-19

    申请人： James M. Bosland

    发明人： James M. Bosland

    IPC分类号： B43L23/02

    CPC分类号： B43L23/02

    摘要： A time delay mechanism positioned in the pencil sharpener housing near the entry point of the pencil delays the entry of the pencil into the sharpening cavity and simultaneously moves the helical cutting mechanism inwardly into engagement with a leaf spring contact thereby causing actuation of the pencil sharpener motor and rotation of the helical cutting mechanism before the entry of the pencil point into the sharpening cavity.

    摘要翻译： 定位在铅笔切割器壳体附近的时间延迟机构在铅笔的入口点附近延迟了铅笔进入磨刀腔，同时使螺旋切割机构向内移动以与板簧接触接合，从而引起铅笔磨刀马达 并且在铅笔点进入磨刀腔之前旋转螺旋切割机构。