Membrane keyboard switch assembly having selectable tactile properties
    53.
    发明授权
    Membrane keyboard switch assembly having selectable tactile properties 失效
    膜键盘开关组件具有可选的触觉特性

    公开(公告)号:US4362911A

    公开(公告)日:1982-12-07

    申请号:US187904

    申请日:1980-09-17

    摘要: A "membrane"-type keyboard includes a resilient foam layer having an array of holes therein with the layer being sandwiched between first and second flexible membranes having electrical conductors thereon which are arranged to complete a circuit associated with a hole when the first and second membranes are moved toward each other. Embodiments including dome-shaped areas in the first flexible membranes provide for "tactile feedback" and additional foam layers enhance the operating characteristics of the embodiments. The method generally entails determining the operating parameters of a desired keyboard and simply changing the relative density and/or thicknesses of various layers and flexible membranes in the keyboard to obtain radically variable paremeters, as for example, the location of the "makepoint" of the switch at various positions between the start and end of "key travel."

    摘要翻译: “膜”型键盘包括弹性泡沫层,弹性泡沫层具有孔阵列,该层被夹在其上具有电导体的第一和第二柔性膜之间,第一柔性膜和第二柔性膜布置成当第一和第二膜 彼此相向移动。 包括第一柔性膜中的圆顶形区域的实施例提供“触觉反馈”,并且附加的泡沫层增强了实施例的操作特性。 该方法通常需要确定所需键盘的操作参数,并且简单地改变键盘中的各种层和柔性膜的相对密度和/或厚度以获得根本上可变的计数器,例如,“makepoint”的位置 在“钥匙旅行”的开始和结束之间切换到各种位置。

    Laminated membrane switch
    54.
    发明授权
    Laminated membrane switch 失效
    层压薄膜开关

    公开(公告)号:US4314114A

    公开(公告)日:1982-02-02

    申请号:US118410

    申请日:1980-02-04

    申请人: Willis A. Larson

    发明人: Willis A. Larson

    IPC分类号: H01H13/702 H01H13/02

    摘要: An assembly for manufacture of a membrane switch includes a composite formed of first and second layers, one substantially thicker than the other, with the composite having a size and shape to form both outer members of a membrane switch when folded back upon itself. Metallic conductors, preferably silver, are formed on the composite prior to folding. A spacer member having spaced openings therein and extending over approximately half of the area of the composite is positioned thereupon. After the composite is folded over the spacer member, laminating heat and pressure are applied to the assembly with the result that a bond is formed between the spacer member and composite and between the layers of the composite.

    摘要翻译: 用于制造膜开关的组件包括由第一层和第二层组成的复合材料,其一层基本上比另一层厚,其中复合材料具有尺寸和形状,以便当折叠在其上时形成膜开关的外部构件。 金属导体,优选银,在折叠之前在复合材料上形成。 在其中具有间隔开口并且延伸超过复合材料区域的大约一半的间隔件被放置在其上。 在将复合材料折叠在间隔件上之后,将层压热和压力施加到组件上,结果是在间隔件和复合材料之间以及复合材料层之间形成粘结。

    Isolation membrane switch
    56.
    发明授权
    Isolation membrane switch 失效
    隔离膜开关

    公开(公告)号:US4237358A

    公开(公告)日:1980-12-02

    申请号:US36353

    申请日:1979-05-07

    IPC分类号: H01H13/702 H01H3/02 H01H3/12

    摘要: A membrane switch includes a substrate having a plurality of first conductors formed thereon and a flexible membrane having a plurality of second conductors formed thereon. A spacer is positioned between the substrate and membrane and there are openings in the spacer in register with aligned first and second conductors. To isolate the switch membrane, there is a pressure reduction membrane overlying and in contact with the exterior of the switch membrane and an isolation membrane positioned on top of the pressure reduction membrane. Areas of the pressure reduction membrane in register with the spacer openings are formed to reduce the required force thereupon to effect movement of the switch membrane.

    摘要翻译: 膜开关包括其上形成有多个第一导体的基板和形成有多个第二导体的柔性膜。 间隔件位于基底和膜之间,并且间隔物中有开口,与第一和第二导体对齐。 为了隔离开关膜,存在覆盖并与开关膜的外部接触的减压膜和位于减压膜顶部的隔离膜。 形成与间隔开口对准的减压膜的区域,以减小其上所需的力来实现开关膜的移动。

    Modular touch sensitive indicating panels with touch and light transmissive overlay cover membrane containing visible printed indicia

    公开(公告)号:US3777222A

    公开(公告)日:1973-12-04

    申请号:US3777222D

    申请日:1972-05-12

    申请人: IBM

    发明人: HARRIS T

    摘要: Presently described touch sensitive indicating panels have thin but durably constructed plastic overlay membranes serving to: (a) transmit touch actuation pressure to underlying elastic diaphragm switch contacts arrayed at selected points of a pre-dimensioned grid; (b) transmit rear projection light indications received through spaces between switch grid conductors from suitably positioned light sources; (c) transmit alphanumeric light indications from suitably located arrays of light sources; (d) allow viewing of fixed information behind panels through suitably located areas; (e) display permanent indicia of artwork and nomenclature designating touch sensing and rear projection sites and functions; and (f) complete a housing enclosure. Panels for various host systems (e.g. computers, peripheral terminals, etc.) are assembled in various shapes and function types from a limited inventory of modular touch switches and control circuits. In the switch modules crossed grids of spaced conductors, which are prefabricated on transparent flexible support films, have pairs of spaced parallel contact segments subject to flexure into contact at positions offset from the grid intersections. The grids have predetermined dimensions of intersection spacing and the offset contact pairs have specific design features for enhanced integrity and reliability of contact operation. Modular sensing circuits perform the functions of: scanning contacts of the panel switch modules for touch closure conditions; representing locations of closure conditions at predetermined locations; providing audible feedback (beep tone) of contact sensing, and translating sensed contact conditions into panel light indications and/or electrical control functions. Various arrangements are described for producing complex control and indicating effects based upon combinational sensing of particular contact sequences.