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    • 5. 发明授权
    • Driving mechanism for a type drum in a printer
    • 打印机类型滚筒的驱动机构
    • US4602561A
    • 1986-07-29
    • US704426
    • 1985-02-22
    • Yoshiyuki Nakajima
    • Yoshiyuki Nakajima
    • B41J7/36B41J1/48B41J7/34B41J23/04B41J9/10
    • B41J7/34B41J1/48B41J23/04Y10T74/19633
    • An impact printer has a type drum, a plurality of hammers, a type drum gear secured to a shaft of the type drum, and a gear train including a drive gear and an intermediate gear engaged with the drive gear and type drum gear for driving the type drum. A lever is provided to rotate about a shaft of the drive gear. The intermediate gear is rotatably supported on the lever at one end thereof, and a spring is provided for urging the lever in the direction that the intermediate gear engages with the type drum gear. The rotational direction of the type drum gear is such that the rotation of the type drum gear causes the intermediate gear to revolve around the drive gear to brake the type drum.
    • 冲击式打印机具有类型鼓,多个锤,固定到型鼓的轴的类型鼓齿轮和包括驱动齿轮和与驱动齿轮啮合的中间齿轮的齿轮系和用于驱动 型鼓。 提供杠杆以围绕驱动齿轮的轴旋转。 中间齿轮在其一端可旋转地支撑在杠杆上,并且设置弹簧以沿中间齿轮与型鼓齿轮接合的方向推动杆。 类型鼓齿轮的旋转方向使得类型鼓齿轮的旋转使得中间齿轮围绕驱动齿轮旋转以制动型滚筒。