Typing machine key action
    39.
    发明授权
    Typing machine key action 失效
    打字机键操作

    公开(公告)号:US3981385A

    公开(公告)日:1976-09-21

    申请号:US501122

    申请日:1974-08-28

    IPC分类号: B41J5/14 B41J7/02 B41J23/06

    CPC分类号: B41J23/06

    摘要: An interposer in a typing machine key action is supported by an arcuate spring and a shelf. When a key lever bears against the arcuate spring to release the interposer from the shelf, the arcuate spring snaps the interposer against a pawl that engages a power roll to initiate a typing operation. Potential energy is restored to the arcuate spring as the key lever lifts the interposer back to rest position. The arcuate spring serves as a support and frictionless pivot for the interposer and biases the interposer against the shelf while providing energy to impel the interposer against the pawl.

    摘要翻译: 打字机键盘动作中的插件由弧形弹簧和架子支撑。 当一个钥匙杆靠在弓形弹簧上以从搁板上释放插入器时,弧形弹簧将插入件抵靠一个与动力辊接合的棘爪,以启动打字操作。 潜在的能量恢复到弓形弹簧,因为钥匙杆将插入器提升回到静止位置。 弧形弹簧用作插入件的支撑和无摩擦的枢轴,并且将插入件偏压在搁架上,同时提供能量以推动插入件抵靠棘爪。