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1. 发明授权

US3857318A Device at musical instruments with a piano keyboard or the like 失效
标题翻译：音乐仪器与PIANO键盘或类似的设备
公开(公告)号：US3857318A
公开(公告)日：1974-12-31
申请号：US33630073
申请日：1973-02-27
申请人： SJOSTRAND S , JANSSON K
发明人： JANSSON K , SJOSTRAND S
IPC分类号： G10D13/08 , G01D13/08
CPC分类号： G10D13/085
摘要： A musical instrument having a plurality of tone bars for the respective individual tones of the instrument. The tone bars are disposed in two parallel rows one overlying the other. A keyboard which may be of the type used in a piano is provided, and associated with each key is pass hammer which is adapted to be actuated by the associated key for striking the related tone bar. The hammers are positioned generally along one of the rows of tone bars, and in order that the hammers can strike the tone bars in the other row, at least some of the tone bars in the firstmentioned row define recesses therein along one edge so as to permit the hammer to passs therethrough and strike the associated tone bar in the other row. In addition, a resonance box is positioned over the tone bars and defines therein apertures which are disposed opposite the tone bars. Those apertures which are disposed opposite the tone bars in the more remote row of tone bars are larger than those which are disposed opposite the tone bars in the closer row of such tone bars.
摘要翻译：具有用于乐器的各个音调的多个音杆的乐器。色调杆以两个平行的排布置，一排叠在一起。提供了可以是用于钢琴的类型的键盘，并且与每个键相关联的是通过锤子，该锤子适于由用于击打相关色调杆的相关联的键致动。锤通常沿着一排色调杆定位，并且为了使锤子能够撞击另一排中的色调杆，第一列中的至少一些色调杆沿着一个边缘限定凹部，因此以允许锤通过并撞击另一排中的相关联的音杆。此外，共鸣盒位于色调杆上方并且在其中限定了与色调杆相对设置的孔。在更远距离的一排音调条中与音杆相对设置的那些孔比在这些音杆的更靠近排中与色调杆相对设置的孔大。

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