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1. 发明授权

US4382705A Typewriter with an erasing apparatus 失效
标题翻译：具有擦除装置的打字机
公开(公告)号：US4382705A
公开(公告)日：1983-05-10
申请号：US285035
申请日：1981-07-20
申请人： Hisao Kurachi , Takeo Itoh , Hiroshi Onoda , Kiyomichi Okado , Susumu Kuzuya
发明人： Hisao Kurachi , Takeo Itoh , Hiroshi Onoda , Kiyomichi Okado , Susumu Kuzuya
IPC分类号： B41J19/36 , B41J29/36
CPC分类号： B41J29/36
摘要： A typewriter with a character erasing apparatus capable of consecutively erasing a series of characters as well as a single character once printed on a sheet of printing paper. The typewriter is provided with a retaining crank movable to first, second and third positions. In the first position the retaining crank retains a ribbon vibrator supporting an erase ribbon in non-operative status. In the second position the retaining crank permits the ribbon vibrator to operate while interrupting transmission of power for moving a platen. The retaining crank is automatically restored to the first position in response to return movement of the ribbon vibrator after the single character erasing. The retaining crank is moved to and held at the third position by a manual member for permitting the ribbon vibrator to operate consecutively. The retaining member does not interrupt the transmission of the power for moving the platen. Therefore, while the retaining crank is in the third position a series of characters are consecutively erased by usual typing.
摘要翻译：具有字符擦除装置的打字机，能够连续地擦除一系列字符以及一次打印在一张打印纸上的单个字符。打字机设置有可移动到第一，第二和第三位置的保持曲柄。在第一位置，保持曲柄保持带状振动器，其支撑着非操作状态的擦除带。在第二位置，保持曲柄允许带状振动器在中断用于移动压盘的动力传递的同时操作。响应于单个字符擦除后带状振动器的返回运动，保持曲柄自动恢复到第一位置。保持曲柄通过用于允许带状振动器连续操作的手动构件移动并保持在第三位置。保持构件不会中断用于移动压板的动力的传递。因此，当保持曲柄处于第三位置时，通过通常的打字连续地擦除一系列字符。

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