发明名称 |
SOUND REDUCING DEVICE FOR UPRIGHT PIANO |
摘要 |
<p>PROBLEM TO BE SOLVED: To provide the sound reducing device for an upright piano in which a smooth driving operation of the action by a post wire is maintained, sound leak generated from the gap between the keyboard and the back roof is sufficiently reduced and the efficiency of sound reduction is made reasonable. SOLUTION: The sound reducing device is constituted so that as a keyboard 6 provided on a shelf plate 2 is pressed, a post wire 8 erected at the back section of the keyboard 6 pushes up an action 13. Moreover, the post wire 8 is constituted of a lower post wire section 8a which is fixed to the keyboard 6 and an upper post wire section 8b which is connected to the section 8a in a freely rotatable manner in the front and the back directions. Furthermore, the device is provided with a guiding rail 15 which has a guiding hole 17 to guide the section 8b and a sound shielding member 16 which is mounted on the rail 15 and is continuously extended between the plate 2 and a back roof 10.</p> |
申请公布号 |
JPH09297571(A) |
申请公布日期 |
1997.11.18 |
申请号 |
JP19960149925 |
申请日期 |
1996.05.21 |
申请人 |
KAWAI MUSICAL INSTR MFG CO LTD |
发明人 |
KITAJIMA RIICHI;ISHIDA MUNEO |
分类号 |
G10C1/02;G10C3/00;G10C3/16;(IPC1-7):G10C3/00 |
主分类号 |
G10C1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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