Mechanical pencil
    1.
    发明授权
    Mechanical pencil 失效
    自动铅笔

    公开(公告)号:US4352581A

    公开(公告)日:1982-10-05

    申请号:US133137

    申请日:1980-03-24

    IPC分类号: B43K21/00 B43K21/20

    CPC分类号: B43K21/20

    摘要: A mechanical pencil of the type having a push-button lead-feeding mechanism is provided with a space into which a replaceable cartridge containing leads can be inserted. The cartridge has a lead outlet opening which is blocked by a closure that is moved out of the way upon such insertion so that the leads can thereupon move sequentially into the lead-feeding mechanism, permitting a user to write until all leads in the cartridge are used up.

    摘要翻译: 具有按钮引导机构的类型的自动铅笔设置有可插入可更换的包含引线的墨盒的空间。 该盒具有一个引线出口开口,该封闭件在这样的插入时被移出,从而引线依次移动到引线馈送机构中,允许用户写入,直到盒中的所有引线为 用光。

    Mechanical pencil
    2.
    发明授权
    Mechanical pencil 失效
    自动铅笔

    公开(公告)号:US4247215A

    公开(公告)日:1981-01-27

    申请号:US910504

    申请日:1978-05-30

    IPC分类号: B43K21/00 B43K21/20 B43K21/16

    CPC分类号: B43K21/20

    摘要: A mechanical pencil of the type having a pushbutton lead-feeding mechanism is provided with a space into which a replaceable cartridge containing leads can be inserted. The cartridge has a lead outlet opening which is blocked by a closure that is moved out of the way upon such insertion so that the leads can thereupon move sequentially into the lead-feeding mechanism, permitting a user to write until all leads in the cartridge are used up.

    摘要翻译: 具有按钮引导机构的类型的自动铅笔设置有可插入可更换的包含引线的墨盒的空间。 该盒具有一个引线出口开口,该封闭件在这样的插入时被移出,从而引线依次移动到引线馈送机构中,允许用户写入,直到盒中的所有引线为 用光。