发明公开
- 专利标题： Structure of rotary valve assembly used in wind instrument
- 专利标题（中）： 旋风阀组件在风力仪表中的结构
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申请号： EP89108214.1申请日： 1989-05-06
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公开(公告)号： EP0340801A3公开(公告)日： 1990-12-19
- 发明人: Hamanaga, Shinji
- 申请人： YAMAHA CORPORATION
- 申请人地址： 10-1, Nakazawa-cho Hamamatsu-shi Shizuoka-ken JP
- 专利权人： YAMAHA CORPORATION
- 当前专利权人： YAMAHA CORPORATION
- 当前专利权人地址： 10-1, Nakazawa-cho Hamamatsu-shi Shizuoka-ken JP
- 代理机构： Pätzold, Herbert, Dr.-Ing.
- 优先权： JP110863/88 19880506
- 主分类号： G10D9/04
- IPC分类号： G10D9/04
摘要：
A rotary valve assembly incorporated in a brass instrument for changing a pitch of a tone comprises a rotary valve (101) housed in a valve casing having two groups of aeroports, and the rotary valve is provided with two air passages (105 and 106) one of which interconnects the aeroports in the first group and the other of which interconnects the aeroport of the first group and the aeroport of the second group, so that various arrangement is possible for the aeroports.
公开/授权文献
- EP0340801B1 Structure of rotary valve assembly used in wind instrument 公开/授权日：1995-03-08
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