Structure of push-button dial switch

申请号 JP2111580 申请日 1980-02-21 公开(公告)号 JPS56117460A 公开(公告)日 1981-09-14
申请人 Taiko Denki Seisakusho:Kk; 发明人 TOMITA YASUO; MURAKAMI MASAYUKI; SAITOU NORIO;
摘要 PURPOSE:To realize a small size for a push-button dial switch, by mounting the pairs of common contact springs onto a contact substrate or a dial signal circuit substrate. CONSTITUTION:The push-button 9 is attached to the frame 8 that is not shown in the figure; and a dome-shaped driving part having conductive contacts made of the conductive rubber plus the fixed contacts wired by printing onto the contact substrate 12 are provided in correspondence to each push-button. Then two actuators 14-1 and 14-2 are provided to engage each half number of push-buttons, and the working bars 14a and 14b pierce through the holes 12a and 12b of the contact substrate to engage the common contact springs 15a and 15b each. The common contact springs 15a, 16a, 17a, 15b, 16b and 17b are provided on the back of the contact substrate and then led to the terminals 18 and 19 by printed wiring. Thus the common contact springs are driven with push of either one of the push-buttons to carry out a switching action.
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