Keyboard apparatus for acoustic pianos,申请号US19970939438-传众专利搜索

Keyboard apparatus for acoustic pianos

申请公布号：US5894099(A)

申请号：US19970939438

申请日期：1997.09.29

申请公布日期：1999.04.13

申请人：

KABUSHIKI KAISHA KAWAI GAKKI

发明人：NIITSUMA, SHINJI

分类号：G10C3/12;G10F1/02;G10H1/34;(IPC1-7):G10C3/12

主分类号：G10C3/12

摘要：A keyboard apparatus for an acoustic piano having strings includes keys, a key bed supporting the keys such that they are turnable thereon, an action mechanism arranged at a rear end portion of each of the keys which operates in a manner interlocked with key depression to strike the associated string to generate a musical tone, and a key sensor switch mounted on the key bed for generating key depression information of the keys. The key sensor switch is formed by a rubber switch, and removably mounted on the key bed. Alternatively, the key sensor switch is movably mounted on the key bed such that the key sensor switch can be moved between a detecting position in which the key sensor switch can be depressed by any key depressed, and a non-detecting position in which the key sensor switch cannot be depressed by any key depressed.