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    Push button switch
    63.
    发明授权
    Push button switch 失效
    按钮开关

    公开(公告)号：US4929804A

    公开(公告)日：1990-05-29

    申请号：US278408

    申请日：1988-12-01

    Applicant: Nobuyuki Kawai ,  Mitsuhiro Nakamura

    Inventor： Nobuyuki Kawai ,  Mitsuhiro Nakamura

    IPC: H01H11/00 ,  H01H13/702 ,  H01H13/785 ,  H01H23/02 ,  H01H23/30

    CPC classification number: H01H13/785 ,  H01H13/702 ,  H01H2201/036 ,  H01H2205/002 ,  H01H2209/004 ,  H01H2221/018

    Abstract: A push button switch which may be used, for example, as a zooming switch in a video camera, having a uniform electrical resistance/applied pressure characteristic and which can be manufactured easily and at a low cost. The switch includes a conductive layer and a pressure-sensitive resistance element disposed between electrode patterns provided on a printed circuit board and an insulated push button. The conductive layer is coated with a pressure-sensitive conductive paste and the pressure-sensitive resistance element is fixed to the insulated push button at a opposed surface to the electrode patterns separated by a predetermined distance.

    Abstract translation: 可以使用例如摄像机中的变焦开关的按钮开关，其具有均匀的电阻/施加的压力特性，并且可以容易且低成本地制造。 开关包括设置在印刷电路板上设置的电极图案和绝缘按钮之间的导电层和压敏电阻元件。 导电层用压敏导电膏涂覆，并且压敏电阻元件在与预定距离分开的电极图案的相对表面处固定到绝缘按钮。

    Spacerless keyboard switch circuit assembly
    64.
    发明授权
    Spacerless keyboard switch circuit assembly 失效
    无间距键盘开关电路组件

    公开(公告)号：US4451714A

    公开(公告)日：1984-05-29

    申请号：US465088

    申请日：1983-02-09

    Applicant: Franklin N. Eventoff

    Inventor： Franklin N. Eventoff

    IPC: H01H13/702 ,  H01H13/703 ,  H01H13/785 ,  H01H13/70

    CPC classification number: H01H13/785 ,  H01H13/702 ,  H01H13/703 ,  H01H2201/036 ,  H01H2207/004 ,  H01H2211/01 ,  H01H2211/032 ,  H01H2229/038 ,  H01H2239/008

    Abstract: A spacerless switch circuit for use in multiple switch keyboards includes a first base member having a front surface and a second base member having a front surface in touching relationship against the front surface of the first base member. A plurality of first and second conductor traces are respectively deposited on the front surfaces of the first and second base members. An insulative layer is deposited over regions of either or both of the first and second conductor traces to insulate the conductor traces from each other when the front surfaces of the two base members are touching one another. One or more first switch contacts are deposited on the first base member and one or more facing second switch contacts are deposited on the second base member to define one or more on/off switches. At least one of the first switch contacts includes a first conductive pad and a first pressure sensitive layer applied over the first conductor pad so that a surface junction is formed between the first and second switch contacts where the surface junction is electrically nonconductive when the first contact noncompressively touches the facing second contact and is electrically conductive when the first contact compressively touches the facing second contact.

    Abstract translation: 一种用于多个开关键盘的无间隔开关电路包括具有前表面的第一基底构件和具有与第一基底构件的前表面接触的前表面的第二基底构件。 多个第一和第二导体迹线分别沉积在第一和第二基底构件的前表面上。 绝缘层沉积在第一和第二导体迹线中的任一个或两者的区域上，以使两个基底构件的前表面彼此接触时使导体迹线彼此绝缘。 一个或多个第一开关触点被沉积在第一基底构件上，并且一个或多个相对的第二开关触点沉积在第二基底构件上以限定一个或多个开/关开关。 所述第一开关触点中的至少一个包括施加在所述第一导体焊盘上的第一导电焊盘和第一压敏层，使得当所述第一触点在所述第一和第二开关触点之间形成表面结， 非压缩地接触面对的第二接触件，并且当第一接触部压缩地接触面对的第二接触件时导电。

    Hermetically sealed keyboard type assembly with elastomeric electrical connecting link between switch and component modules
    65.
    发明授权
    Hermetically sealed keyboard type assembly with elastomeric electrical connecting link between switch and component modules 失效
    密封式键盘式组件，在开关和组件模块之间具有弹性电连接

    公开(公告)号：US3959610A

    公开(公告)日：1976-05-25

    申请号：US532541

    申请日：1974-12-13

    Applicant: John P. Finnegan ,  Bernard Gasparaitis

    Inventor： John P. Finnegan ,  Bernard Gasparaitis

    IPC: H01H13/702 ,  H01H13/785 ,  H01H13/70 ,  H01H1/58

    CPC classification number: H01H13/785 ,  H01H13/702 ,  H01H2201/036 ,  H01H2203/02 ,  H01H2205/002 ,  H01H2207/002 ,  H01H2209/078 ,  H01H2221/002 ,  H01H2223/002 ,  H01H2223/014 ,  H01H2223/024 ,  H01H2223/034 ,  H01H2223/04 ,  H01H2227/006 ,  H01H2227/012 ,  H01H2229/034 ,  H01H2231/022 ,  H01H2231/036 ,  H01H2239/01

    Abstract: A housing having key portions of a resilient pad extending therethrough with a metal impregnated elastomer pad overlying the rear surface thereof, a sheet of insulating material having openings therethrough corresponding with the key portions and a plurality of contact areas on a printed circuit board overlying the insulating sheet and having a plurality of contacts on the rear surface thereof, a connecting link formed of a second sheet of insulating material having a plurality of areas of metal impregnated elastomeric material extending therethrough and corresponding in position with the contacts, a second PC board having a plurality of contacts in contact with the elastomeric areas of the connecting link and a frame compressing all of the components together to provide an electrical contact to the elastomeric material in the connecting link and complete a circuit between various contacts on the two printed circuit boards and provide a weather-tight multi-push button switch.

    Abstract translation: 一种具有弹性垫的键部分的壳体，其上覆盖有覆盖其后表面的金属浸渍弹性体垫，具有穿过其中的键的绝缘材料片，以及覆盖绝缘体的印刷电路板上的多个接触区域 片材，并且在其后表面上具有多个触点，连接链接由第二绝缘材料板形成，所述第二绝缘材料片具有延伸穿过其中的金属浸渍的弹性体材料的多个区域并且在触点的位置对应，第二PC板具有 与连接链节的弹性体区域接触的多个触点和将所有部件压在一起的框架，以提供与连接链节中的弹性体材料的电接触，并且在两个印刷电路板上的各个触点之间形成电路，并提供 一个耐风雨的多按钮开关。

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