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29 条记录 (耗时 0.014 秒)

    Breakaway leafspring actuated keyswitch apparatus
    13.
    发明授权
    Breakaway leafspring actuated keyswitch apparatus 失效
    分离式叶簧驱动钥匙开关装置

    公开(公告)号：US4480937A

    公开(公告)日：1984-11-06

    申请号：US412986

    申请日：1982-08-30

    申请人： Richard A. Eckhardt

    发明人： Richard A. Eckhardt

    IPC分类号： G06F3/02 ,  B41J5/16 ,  H01H13/12 ,  H01H13/36 ,  H01H13/52 ,  H01H13/70 ,  B41J5/08 ,  H01H3/12 ,  H01H21/04

    CPC分类号： B41J5/16 ,  H01H13/36 ,  H01H13/7013

    摘要： A keyswitch apparatus for electronic typewriter keyboards and the like including a circuit board having at least one pair of electrical conductors, each conductor having contact means, at least one single-piece spring and contact system, each including a frame portion adapted for directly mounting to the circuit board and at least one spring and contact unit. Each spring and contact unit is associated with an associated pair of circuit board conductors, maintains direct electrical contact with the contact means of a first one of the conductors of the pair and includes a base section connected to the frame portion and bent into a longitudinal channel form, a leaf spring member cantilevered upwardly from the base section and having flat spring means urging the first extension section upwardly relative to the static board, and a contact member cantilevered downwardly from the base section for providing direct electrical contact with the contact means of the second one of the conductors of the pair when a pre-established downward force is exerted on the cantilevered end of the leaf spring member. The base and leaf spring member urge the second extension section apart from the contact means of the second static board conductor of the pair. There are means for depressing the cantilevered end of the first extension section to straighten the channel of the base section and thereby lower the second extension section to make direct electrical contact with the contact means of the second static board conductor of the pair.

    摘要翻译： 一种用于电子打字机键盘等的键开关装置，包括具有至少一对电导体的电路板，每个导体具有接触装置，至少一个单件式弹簧和接触系统，每个包括一个框架部分，其适于直接安装到 电路板和至少一个弹簧和接触单元。 每个弹簧和接触单元与相关联的一对电路板导体相关联，保持与该对导体中的第一个导体的接触装置的直接电接触，并且包括连接到框架部分并弯曲成纵向通道 形成从所述基部向上悬伸的板簧构件，并且具有相对于所述静电板向上推压所述第一延伸部的平板弹簧装置;以及从所述基部向下悬臂的接触构件，用于与所述接触装置的接触装置直接电接触 当预先确定的向下的力施加在板簧构件的悬臂端上时，该对中的第二导体。 基座和板簧构件推动第二延伸部分与该对的第二静电板导体的接触装置分开。 存在用于按压第一延伸部分的悬臂端的装置，以使基部的通道拉直，从而使第二延伸部分下降，以与该对的第二静电板导体的接触装置直接电接触。

    Keyboard switch and unitized multiple switch configuration
    15.
    发明授权
    Keyboard switch and unitized multiple switch configuration 失效
    键盘开关和多路开关配置

    公开(公告)号：US3731014A

    公开(公告)日：1973-05-01

    申请号：US3731014D

    申请日：1971-08-02

    申请人： UNIVERSAL TECHNOLOGY

    发明人： BRADY J

    IPC分类号： B41J5/16 ,  H01H13/70 ,  H01H13/52

    CPC分类号： B41J5/16 ,  H01H13/7006

    摘要： A unitized configuration including plurality of key top switches. A single unit shell overlies and is secured to a circuit board upon which the contact leafs for the various switches are so mounted as to be cantilevered over their respective printed contacts. The plungers associated with the several key tops pass through openings in the shell and are biased out of contact with the underlying cantilevered leafs by spring means. Depressing of the key tops drives the plungers downward to deflect the respective contact leafs and close the associated circuits.

    摘要翻译： 包括多个键顶开关的单元化配置。 单个壳体覆盖并固定到电路板上，用于各种开关的接触叶片在该电路板上被安装成在其各自的印刷触点上​​悬臂。 与几个关键顶部相关联的柱塞通过壳体中的开口并且通过弹簧装置被偏压与下面的悬臂叶片接触。 按键顶部将柱塞向下驱动以使相应的接触叶片偏转并闭合相关联的电路。

    Elongated switch bar apparatus
    16.
    发明授权
    Elongated switch bar apparatus 失效
    延长开关杆装置

    公开(公告)号：US3665126A

    公开(公告)日：1972-05-23

    申请号：US3665126D

    申请日：1970-07-01

    申请人： SANDERS ASSOCIATES INC

    发明人： GABOR WILLIAM D

    IPC分类号： B41J5/16 ,  H01H3/12 ,  H03K17/972 ,  H03K17/98 ,  H03M11/22 ,  H01H9/26

    CPC分类号： B41J5/16 ,  B41J5/08 ,  H01H3/122 ,  H03K17/972 ,  H03K17/98 ,  H03M11/22 ,  Y10T74/20238 ,  Y10T74/20244

    摘要： A keyboard encoder comprises a set of keys. Each key is in juxtaposition with one or more field-responsive elements associated with that key, the outputs of the field-responsive elements being conveyed to output terminals of the encoder. Actuation of a key alters the field to which the elements associated therewith respond. The number of elements associated with each key and the connections of these elements to the output terminals correspond to the output code for the character represented by the key. Consequently, the responses of the fieldresponsive elements to actuation of a key provide a directly encoded representation of the corresponding character at the output terminals. Also disclosed is an elongated switch bar in which contact is readily made even though the switch bar is depressed at either of the two ends thereof.

    Electric typewriter key and keyboard arrangement
    17.
    发明授权
    Electric typewriter key and keyboard arrangement 失效
    电式TYPEWRITER键和键盘布置

    公开(公告)号：US3633724A

    公开(公告)日：1972-01-11

    申请号：US3633724D

    申请日：1970-01-22

    申请人： RONALD A SAMUEL

    发明人： SAMUEL RONALD A

    IPC分类号： B41J5/16 ,  B41J5/28

    CPC分类号： B41J5/16 ,  B41J5/28

    摘要： A keyboard arrangement for use with a standard electric typewriter in which the conventional complement of standard keys are replaced by eight polygonal-shaped key members, each of the eight key members being operable to actuate five adjacent levers of the typewriter. Each of the eight key members is movable both axially and pivotally on the arcuate edges of a respective foursided key support member to selectively depress one of five upstanding, symmetrically arranged key lever actuating posts positioned at the center and each corner, of the respective key member. Indicia on the face of each key member at each corner and the center thereof designate which key lever will be actuated upon depressing or pivoting the key member.

    摘要翻译： 一种与标准电动打字机一起使用的键盘装置，其中常规的标准键的补充由八个多边形键构件代替，八个键构件中的每一个可操作以致动打字机的五个相邻的杆。 八个按键构件中的每一个都可以在相应的四边键支撑构件的弓形边缘上轴向地和可枢转地移动，以选择性地按压位于相应的四边键支撑构件的中心和每个角落的五个直立的对称布置的键杆致动柱中的一个 主要成员。 在每个角部及其中心处的每个键构件的表面上的标记表示当按压或枢转键构件时将致动哪个键杆。