发明名称 ELECTRONIC KEYBOARD INSTRUMENT
摘要 PROBLEM TO BE SOLVED: To provide an electronic keyboard instrument capable of stabilizing, when a second switch is turned ON by a hammer member, the operations of first and second switches without any influence of impact thereof on the first switch.SOLUTION: In the electronic keyboard instrument, a first switch board 11 and a second switch board 12 are independently provided in a keyboard chassis 1 while being separated from each other. The first switch board 1 has a first switch that is turned ON by a key 2 arranged on the keyboard chassis 1 in a manner to be rotatable in a vertical direction upon the depression of the key 2. The second switch board 12 has a second switch 5 that is turned ON by a hammer member 3 that rotates to be displaced in response to the depression of the key 2 and applies action load to the key 2. Accordingly, even if the second switch board 12 receives an impact from the hammer member 3 when the hammer member 3 turns ON the second switch 5, the impact is not easily transmitted to the first switch 4.
申请公布号 JP2011013258(A) 申请公布日期 2011.01.20
申请号 JP20090154764 申请日期 2009.06.30
申请人 CASIO COMPUTER CO LTD 发明人 TANIGUCHI HIROKAZU
分类号 G10B3/12;G10H1/34 主分类号 G10B3/12
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