发明名称 KEYBOARD
摘要 The keyboard is used in communication technology, in information entry and transformation systems in personal computers. It has increased reliability and wear-resistance. The keyboard contains plates with openings, electrical contacts to the contact plate, a key, a lifter and return spring with an option for connecting to the plate, where the spring is of a spiral type with rectangular ends, fixed in the grooves on the sidewalls of the keys positioned against each other. An additional opening in the plate where the lifter is placed and the spring ensures the pressing of the key to the outlet is envisaged. Any dependence between the direction of the key inclination and the place of its pressing is excluded.
申请公布号 BG49694(A1) 申请公布日期 1992.01.15
申请号 BG19880085815 申请日期 1988.10.25
申请人 SHUKLIN, KONSTANTIN S.;GREVTSOVA, NINA S.;IVANOVA, TATJANA P. 发明人 SHUKLIN, KONSTANTIN S.;GREVTSOVA, NINA S.;IVANOVA, TATJANA P.
分类号 H01H13/70;H01H41/14;(IPC1-7):H01H41/14 主分类号 H01H13/70
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