Keyboard switch for desk top electronic calculators
    1.
    发明授权
    Keyboard switch for desk top electronic calculators 失效
    桌面电子计算器键盘开关

    公开(公告)号:US3911233A

    公开(公告)日:1975-10-07

    申请号:US38943673

    申请日:1973-08-20

    IPC分类号: H01H13/702 H01H13/52

    摘要: There is provided a keyboard switch for desk top electronic calculators in which a conductive member and a plurality of tubular resilient means are disposed between fixed electrode means formed on a printed circuit board and a plurality of key buttons, whereby the positive contacting action between the fixed electrode means and the conductive member by the operated key button and the self-restoration of the operated key button are ensured by the associated tubular resilient means.

    摘要翻译: 提供了一种用于桌面电子计算器的键盘开关,其中导电构件和多个管状弹性装置设置在形成在印刷电路板上的固定电极装置和多个按键之间,由此固定的 电极装置和导电构件通过操作的键按钮和操作的键按钮的自恢复由相关联的管状弹性装置确保。

    Push button switch with elastic conductive sheet
    2.
    发明授权
    Push button switch with elastic conductive sheet 失效
    按钮开关带弹性导电片

    公开(公告)号:US3898421A

    公开(公告)日:1975-08-05

    申请号:US38882773

    申请日:1973-08-16

    发明人: SUZUMURA MASAKI

    IPC分类号: H01H13/702 H01H13/52

    摘要: There is provided a push button switch using an elastic conductive sheet having a spherical protuberance which is adapted to be deformed by a keytop for electrically connecting fixed electrodes formed on a printed circuit board. Spring means for returning the keytop is not required, so that the construction is simplified. Also, excellent switching action, operability and reliability can be ensured.

    摘要翻译: 提供了一种按钮开关,其使用具有球形突起的弹性导电片,该弹性导电片适于通过用于电连接形成在印刷电路板上的固定电极的键帽而变形。 不需要弹簧返回键盘的方法,因此简化了构造。 此外,可以确保良好的开关动作,可操作性和可靠性。