公开(公告)号：US3643041A

公开(公告)日：1972-02-15

申请号：US3643041D

申请日：1970-12-30

Applicant: UNIDYNAMICS PHOENIX

Inventor： JACKSON CHARLES A

IPC: G06F3/02 ,  H01H13/00 ,  H01H13/702 ,  H01H13/785 ,  H01H9/26 ,  H01H35/00

CPC classification number: H01H13/785 ,  H01H13/702 ,  H01H2201/026 ,  H01H2203/004 ,  H01H2203/032 ,  H01H2209/07 ,  H01H2215/008 ,  H01H2223/036 ,  H01H2227/004 ,  H01H2227/022 ,  H01H2239/006

Abstract: A faceplate is provided with a plurality of openings therein, each representing a digit to be used in a keyboard; a metal switch plate is positioned immediately beneath the faceplate and includes a plurality of dome-shaped resilient deformable dimples forming keys therein, each registering with and extending into a different one of said openings. An insulating plate, with holes therein registering with the dimples, separates the switch plate from a contact board that includes a plurality of contact buttons, each registering with one of the holes in the insulating plate. The dimples may be depressed by the fingertip of an operator to ''''snap'''' into contact with a corresponding contact button and will ''''snap'''' back to their original position when fingertip pressure is released.

Abstract translation: 面板在其中设置有多个开口，每个开口代表要在键盘中使用的数字; 金属开关板位于面板的正下方，并且包括在其中形成键的多个圆顶形弹性可变形凹坑，每个配准并延伸到不同的所述开口中。 绝缘板，其中与凹坑对准的孔分开开关板与包括多个接触按钮的接触板，每个触点板与绝缘板中的一个孔对准。 凹坑可能被操作者的指尖压下，以“卡扣”与相应的接触按钮接触，并且当指尖压力释放时将“快速”回到其原始位置。