WIND MUSICAL INSTRUMENT WITH FREE REEDS AND ADJUSTABLE SOUND PITCH |
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| 申请号 | PCT/FR2017052152 | 申请日 | 2017-07-31 | 公开(公告)号 | WO2018024976A3 | 公开(公告)日 | 2018-07-12 |
| 申请人 | TCHUMAK PHILIPPE; | 发明人 | TCHUMAK PHILIPPE; | ||||
| 摘要 | The invention relates mainly to a wind instrument with free reeds comprising a frame onto which a blowing mouthpiece, opening into a reservoir, is mounted, and a plurality of keys, each key being linked with a valve, the movement of which valve, caused by the instrumentalist actuating the corresponding key, connects the reservoir with a first upstream cavity that opens out onto a blade formed by a reed mounted on a frame, allowing the blade to vibrate. The instrument is essentially characterised in that each blade (13,13a,13b) opens out, in the direction of the blown air flow, on an opening (20, 20a, 46b) through which the air flows outwards; in that the instrument thus has at least a first plurality of air flow openings (20, 20a, 46b) arranged in a single plane; in that it includes closure means (22, 22a, 44b) for closing said air flow openings (20, 20a, 46b), that can be actuated by the instrumentalist and that can move to a first, open position in which the air flowing through the air flow openings (20, 20a, 46b) is not subjected to any pressure, and a second, closed position in which the closure means (22, 22a, 44b) simultaneously cover all the air flow openings (20, 20a, 46b); and in that, from the first position to the second position, the closure means (22, 22a, 44b) are able to move to a plurality of positions that increase the air pressure in the vicinity of the blades (13,13a,13b), thereby lowering the sound frequency of the blades in question (13,13a,13b) . | ||||||
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