公开(公告)号：US4527021A

公开(公告)日：1985-07-02

申请号：US576872

申请日：1984-02-03

申请人： Yoshitsugu Morikawa ,  Kiyoshi Nomoto ,  Kenichi Okada

发明人： Yoshitsugu Morikawa ,  Kiyoshi Nomoto ,  Kenichi Okada

IPC分类号： H01H13/712 ,  G06F3/02 ,  H01H13/52 ,  H01H13/702 ,  H01H13/703 ,  H01H13/70

CPC分类号： H01H13/702 ,  H01H13/703 ,  H01H2203/02 ,  H01H2203/054 ,  H01H2209/002 ,  H01H2211/028 ,  H01H2213/002 ,  H01H2217/024

摘要： A key-board switching unit for electronic instruments is constructed with a printed circuit board provided with a plural number of pairs of fixed contact points on the surface and an insulating covering sheet member mounted on or above the printed circuit board and provided on the bottom surface with movable contact points to face the fixed contact points. Different from conventional units in which exact correspondence in the positions of the fixed and movable contact points is required with time- and labor-consuming assembling works, the movable contact points in multiple numbers distributed over the whole bottom surface of the covering sheet member in such a manner that, when the covering sheet member is pushed and depressed at the switching position, the fixed contact points forming a pair of the counter-electrodes are contacted and electrically connected with at least one movable contact point even without exact positioning of the covering sheet member and the printed circuit board to give a great advantage of the increased productivity in the works of assembling. In particular, the movable contact points are formed of a pressure-sensitive electroconductive rubber.

摘要翻译： 用于电子仪器的键盘切换单元由印刷电路板构成，印刷电路板在表面上设置多个固定接触点，绝缘覆盖片部件安装在印刷电路板上或上方，并设置在底面上 具有可动接触点以面对固定接触点。 与传统的单元不同，在传统的单元中，需要在固定和可移动的接触点的位置上精确的对应而且花费时间的组装工作，多个数量的可移动的接触点分布在覆盖片构件的整个底表面上 当覆盖片材在切换位置处被按压时，形成一对对电极的固定接触点即使没有精确定位的覆盖片也与至少一个可动接触点接触并电连接 成员和印刷电路板，大大提高了组装工作效率。 特别地，可动接触点由压敏导电橡胶形成。

公开(公告)号：US5270507A

公开(公告)日：1993-12-14

申请号：US722876

申请日：1991-06-28

申请人： Akio Nakamura ,  Yoshitsugu Morikawa ,  Mikio Kiyosawa

发明人： Akio Nakamura ,  Yoshitsugu Morikawa ,  Mikio Kiyosawa

IPC分类号： B41M1/30 ,  B41M5/035 ,  H01H11/00 ,  H01H13/702 ,  H01H1/02

CPC分类号： H01H13/702 ,  B41M1/30 ,  B41M5/035 ,  H01H11/00 ,  H01H2209/002 ,  H01H2219/028 ,  H01H2229/046

摘要： A push button switch and methods for manufacturing the same result in increased manufacturing efficiency and increased design freedom. The push button switch includes a key top, a dome section and a leg section which are integrally formed from a silicone rubber material. The key top includes a colored section formed by penetrating the coloring dye of a dye impregnated ink below the upper surface of the key top. The push button switches are formed into a rubber cover configuration by charging a mold for forming a plurality of the push button switches with a silicone rubber material. The dye impregnated ink is then applied onto the surface of each of the key tops by either a wet printing process or a sublimation transfer technique, and is subjected to a heat treatment which causes the dye to penetrate into each of the key tops.

摘要翻译： 按钮开关及其制造方法可提高制造效率并提高设计自由度。 按钮开关包括由硅橡胶材料一体形成的键顶，圆顶部和腿部。 键顶包括通过在键顶的上表面下方渗透染料浸渍墨的着色剂形成的着色部分。 通过用硅橡胶材料对用于形成多个按钮开关的模具进行充电，将按钮开关形成为橡胶盖构造。 然后通过湿式印刷法或升华转印技术将染料浸渍的油墨施加到每个键顶的表面上，并进行使染料渗透到每个键顶中的热处理。