发明名称 |
Key for musical instrument |
摘要 |
A key is provided for permitting simple attachment of a weight and easy adjustment of a touch load, while using an alternative material for substitution for lead as a material for the weight, to thereby reduce the manufacturing cost. A swingable key body is formed with an embedding hole. The weight is made of a composite material produced by blending a plurality of kinds of materials except for lead in a predetermined blending proportion to have a predetermined specific gravity, and is removably attached to the embedding hole of the key body.
|
申请公布号 |
US6531651(B2) |
申请公布日期 |
2003.03.11 |
申请号 |
US20010846195 |
申请日期 |
2001.05.02 |
申请人 |
KABUSHIKI KAISHA KAWAI GAKKI SEISAKUSHO |
发明人 |
KANEMITSU MAKOTO;YAMASHITA MITSUO;KURITA HIROYUKI;ABIKO MASAHIKO |
分类号 |
G10C3/12;(IPC1-7):G10C3/12 |
主分类号 |
G10C3/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|