Key input device |
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| 申请号 | JP5013082 | 申请日 | 1982-03-30 | 公开(公告)号 | JPS58168134A | 公开(公告)日 | 1983-10-04 |
| 申请人 | Canon Inc; | 发明人 | MURAKAMI OSAMU; | ||||
| 摘要 | PURPOSE:To select correctly many small-sized keys for depressing, by bringing contacts on printed boards oppossing to each other and clipping an insulation sheet having plural number of holes for slidable contact into contact with each other via the holes. CONSTITUTION:The insulating sheet 6 having projections 9, 9' at both ends is provided with large- and small-sized holes for contacts in matrix, alternate arrangement of large- and small-sized holes longitudinally and arranged large- and small-sized holes laterally. This insulating sheet 6 is clipped with the 1st printed board 1 and the 2nd printed board(not shown). The 1st printed board 1 is arranged with large-sized key symbols 3a and small-sized key symbols 3b as shown in a figure, alternately in the longitudinal direction and with the symbols 3b between the symbols 3a laterally, and its back side has contacts. The 2nd printed board has contacts of the similar arrangement. The keys of the 3a and the 3b groups are depressed by sliding right or left the insulation sheet 9. Thus, the keys arranged in a narrow space are selected correctly for depressing. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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