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1. 发明授权

US3866215A Electronic keyboard for typewriter 失效
标题翻译：电子键盘打字机
公开(公告)号：US3866215A
公开(公告)日：1975-02-11
申请号：US34893773
申请日：1973-04-09
申请人： HAVEL KAREL
发明人： HAVEL KAREL
IPC分类号： B41J3/44 , H03K17/98 , G08C21/00
CPC分类号： B41J3/44 , H03K17/98
摘要： An electronic keyboard, particularly suitable for a typewriter, comprising a matrix of keys arranged in at least one section and adapted for being manually contacted. Each key including a first and a second conductive areas, the first conductive areas of all keys in each section being integral, the second conductive areas of all keys of the matrix being separate and being electrically connected to a plurality of electrical contacts, respectively, of a rotary switch. Means is provided for all keys of the matrix for establishing a selected electrical state being changeable by manually contacting a key. A first at least one electronic sensing means is provided for detecting change of said electrical state in each section, a second electronic sensing means is provided for locating a key which is manually contacted. In a typewriter or like machine, a combination of an assembly comprising an electronic keyboard of this invention, a type wheel rotatably mounted on a carrier, a rotary switch, means for starting rotation of the wiper of the rotary switch and the type wheel in at least one direction into printing position aligned with a manually contacted key of the matrix, means for selectively stopping at least the type wheel in the printing position, means for selectively printing characters, and a platen.
摘要翻译：一种特别适用于打字机的电子键盘，其包括布置在至少一个部分中并适于手动接触的按键矩阵。每个键包括第一导电区域和第二导电区域，每个区段中的所有键的第一导电区域是整体的，矩阵的所有键的第二导电区域是分开的并分别电连接到多个电触点旋转开关为矩阵的所有键提供了用于建立通过手动接触钥匙来改变的所选择的电状态的装置。提供第一至少一个电子感测装置用于检测每个部分中的所述电气状态的变化，提供第二电子感测装置用于定位手动接触的钥匙。在打字机或类似机器中，包括本发明的电子键盘的组合件，可旋转地安装在托架上的型轮，旋转开关，用于启动旋转开关的刮水器和类型轮的旋转的装置与矩阵的手动接触的键对准的打印位置的至少一个方向，用于选择性地至少停止打印位置中的型轮的装置，用于选择性地打印字符的装置和压板。

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