发明名称 KEYBOARD DEVICE FOR ELECTRONIC MUSICAL INSTRUMENT
摘要 <P>PROBLEM TO BE SOLVED: To provide a keyboard device for electronic musical instruments which very precisely, easily makes an adjustment for the arrangement of keys. <P>SOLUTION: In the keyboard device for electronic musical instruments, a key guide 50 which guides a key in the vertical direction is provided with: a supporting body 51 which is fixed to a key frame 20 and extends into the hollow part 14 of the key; and a contacting body 52 which is supported by the supporting body and contacts the inner surface of the sidewall of the key to guide upward and downward motion of the key. Then, the contacting body 52 is supported by the supporting body 51 rotatably about the central axial line of the supporting body, and the contour line in the peripheral direction of the contacting body moderately changes its distance from the central axial line at least at a part at which it contacts the key, and the position of the contacting body is changed in the rotational direction to adjust the position of the key. The supporting body 51 and the contacting body 52 are fit in the direction of the axial line of the supporting body, and at least one of the fitting faces is formed with a screw. <P>COPYRIGHT: (C)2010,JPO&INPIT
申请公布号 JP2010008736(A) 申请公布日期 2010.01.14
申请号 JP20080168220 申请日期 2008.06.27
申请人 YAMAHA CORP 发明人 OSUGA ICHIRO
分类号 G10B3/12;G10H1/34 主分类号 G10B3/12
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