Keyboard wind instrument

Abstract

The utility model relates to a keyboard wind instrument, which adopts a single-valve type, and is equipped with a keyboard and a portamento mechanism on a frame with multiple flute chambers. The plurality of reed valves respectively provided corresponding to the plurality of keys constituting the keyboard close the air outlet portion of the corresponding flute chamber when not playing, and open it when playing. The portamento mechanism temporarily lowers the pitch of the sound to obtain the portamento effect. It is arranged correspondingly to the reed valves formed side by side. It includes: a valve pressing body, which can rotate freely, including a rotating shaft and a connecting rod; an operating part, which will The valve pressing body rotates in the direction of the reed valve; the force application part makes the valve pressing body return to the initial position; the limiter limits the rotation angle of the valve pressing body.

Description

technical field [0001] The present invention relates to a keyboard wind instrument having a bend mechanism for continuously changing the pitch of a sound. Background technique [0002] Keyboard wind instruments are basically determined by the natural frequency of each reed (reed), so the tone of the sound cannot be continuously changed, and it is an instrument that cannot obtain performance effects such as portamento. Recently, there has been proposed a keyboard wind instrument in which the tone of a sound can be continuously changed by adding a portamento mechanism. One example is disclosed in Japanese Patent Application Publication No. 9-16163 (with reference to paragraphs [0008] to [0018] and figure 2 )middle. In addition, with regard to such a keyboard wind instrument having a portamento mechanism, by searching various databases, etc., other than the above-mentioned publications, no prior art documents closely related to the invention of the present application can be ...

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned existing keyboard wind instrument must be provided with two valves for each flute chamber, so the structure is complicated and the number of parts increases.

[0005] In addition, the gap between the air outlet of the flute chamber and the choke valve and the gap between the reed valve and the choke valve must be sealed with sealing parts, so the number of sealing parts increases. When the sealing performance is reduced due to the deterioration of the sealing parts, the above-mentioned Air leaks will occur between the gaps, which will reduce the performance of the instrument

[0006] In addition, since the choke valve must be assembled in the narrow space between the air outlet of the flute chamber and the reed valve, the assembly performance at the time of musical instrument production is reduced.

When readjusting or repairing the choke valve, the keyboard and the reed valve must be removed from the frame before the operation can be performed, and there are many problems

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