Reed for mouthpiece of wind instrument
10013959 ยท 2018-07-03
Assignee
Inventors
Cpc classification
International classification
Abstract
Disclosed herein is a reed for the mouthpiece of a wind instrument. The reed includes a vibration plate and a support plate. A tunnel-type hole is formed across the support plate in a lengthwise direction from one end surface of the support plate toward the vibration plate. The tunnel-type hole is a long blind hole whose one end on the one end surface is open and whose remaining end is closed, and is disposed in a lateral direction.
Claims
1. A reed for a mouthpiece of a wind instrument, the reed comprising a vibration plate and a support plate; wherein a tunnel-type hole is formed across the support plate in a lengthwise direction from one end surface of the support plate toward the vibration plate; and wherein the tunnel-type hole is a long blind hole whose one end on the one end surface is open and whose remaining end is closed, and is disposed in a lateral direction.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) The above and other objects, features and advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
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DETAILED DESCRIPTION
(13) Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The same reference symbols will be assigned to components which are the same as conventional components, and redundant detailed descriptions thereof will be omitted.
(14) The present inventor has looked for the reason why a player needs to blow air hard when he or she plays a wind instrument and why resonance is not strong and a deep sound is not generated, and has found that the reason is that vibrations attributable to resonance are very weak inside the support plate of a reed supported on a mouthpiece.
(15) Accordingly, in order to increase a resonance phenomenon, a depression was formed through the curved surface of a support plate in a lengthwise direction perpendicular to the curved surface, as in patent document 1. When the vibrations of a vibration plate were transferred to the vertical depression, the vibrations almost cancelled out each other, and thus resonance was very weak. Furthermore, vibrations attributable to the very weak resonance had directionality toward all directions including a vertical direction, and thus vibrations were rarely transferred to the inside of the mouthpiece.
(16) Meanwhile, a slit having a U-shaped section was formed through a curved surface in a lengthwise direction, as in patent document 2. Since the front, back and top of the slit were open, and thus resonance was rarely generated.
(17) The present inventor has found that the depression perpendicular to a lengthwise direction (see patent document 1) and the slit having an open front, back and top (patent document 2) generate a weak resonance phenomenon and have a problem with the directionality of vibrations, and has come up with the shape of the inner space of a bell as a shape which desirably generates resonance and desirably transfers vibrations attributable to the resonance to the inner space of a mouthpiece.
(18) A bell has an inner space having an open top. In the inner space of the bell, resonance is desirably generated, and lingers beautifully. A tunnel-type hole having a shape similar to that of the inner space of a bell is formed from one end surface of a support plate across the support plate in a lengthwise direction. It has been found that resonance is desirably generated inside the tunnel-type hole and vibrations attributable to the resonance have directionality which ensures the desirable transfer of the vibrations to the inside of the mouthpiece.
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(20) As shown in
(21) As shown in
(22) One surface of the vibration plate 3 is a flat surface, and the other surface of the vibration plate 3 is an inclined surface whose height increases gradually toward the support plate 5.
(23) One surface of the support plate 5 is a flat surface which is level with the one surface of the vibration plate 3, and the other surface of the support plate 5 is a convex surface whose heights are kept uniform.
(24) Furthermore, the support plate 5 is fastened and supported by a fastener (not shown) in the state where the one surface of the support plate 5 has been brought into contact with a coupling surface 12, as shown in
(25) In particular, a tunnel-type hole 7 is formed across the support plate 5.
(26) The tunnel-type hole 7 is formed in a lengthwise direction from an end 5a of the support plate 5 toward the vibration plate 3.
(27) In other words, the tunnel-type hole 7 is a blind hole closed at one end thereof, and is formed in a lateral direction.
(28) The blind hole closed at one end thereof is similar to the internal shape of a bell, and thus generates a deep lingering resonance.
(29) Furthermore, as shown in
(30) The vibrations of the support plate 5 transferred to the inside of the air chamber 14 add vibrations to an air current blown by a player and thus increase a vibration frequency, thereby generating a strong and deep sound.
(31) Furthermore, since vibrations are added to an air current, it is sufficient if a player blows less for the same sound, and thus respiratory control is considerably facilitated.
(32) Furthermore, as shown in
(33) In other words, the upper and lower walls are formed in the shape of a thin film. The inner surfaces of the upper and lower walls are curved surfaces. The thicknesses w1 and w2 of the left and right walls are substantially the same, and are considerably larger than the thicknesses d1 and d2 of the upper and lower walls. The bottoms of the left and right walls are flat surfaces.
(34) The tunnel-type hole 7 is formed in a shape maximally similar to the shape of a bell (a shape whose thickness is significantly smaller than that of an inner empty space) by making the thicknesses of outer walls, surrounding the tunnel-type hole 7, maximally smaller than the inner space of the tunnel-type hole 7. The reason for this is that this shape enables resonance to be desirably generated, thereby enabling a maximum vibration frequency to be obtained.
(35) Meanwhile, as shown in
(36) The number of tunnel-type holes 7 and 7a may be determined based on the type of wind instrument.
(37) The shape of the walls between the tunnel-type hole 7 and the tunnel-type holes 7a is the shape of concave lenses. The reason for this is that this shape enables a plurality of holes to be formed in a shape similar to that of the inner space of a bell.
(38) The cross section of the tunnel-type hole 7 may have a circular shape, an elliptical shape, or the like based on the type of musical instrument.
(39) Furthermore, the reed 1 for the mouthpiece of a wind instrument may be made of a reed plant or synthetic resin.
(40) As described above, the present inventor has researched into how to desirably transfer the vibrations of the support plate 5 to the inside of the air chamber 14, and has reached the present invention in which the tunnel-type hole 7 is formed, the support plate 5 has a bell-shaped inner space, and the tunnel-type hole 7 is disposed in a lateral direction identical to the direction of an air current inside the air chamber 14. As a result, the vibrations of the support plate 5 attributable to resonance inside the tunnel-type hole 7 are transferred to the walls of the air chamber 14 without change, thereby considerably increasing the vibration frequency of an air current inside the mouthpiece 10.
(41) According to the present invention, the following advantages are achieved:
(42) The tunnel-type hole is formed from one end surface of the support plate across the support plate, and thus the support plate receives vibrations from the vibration plate, vibrates vertically around the tunnel-type hole due to resonance and transfers vibrations to an air current inside the mouthpiece, thereby generating a deep sound having a strong resonance.
(43) In particular, the tunnel-type hole is disposed in a lateral direction, i.e., a lengthwise direction, and the bottom of the tunnel-type hole is close to the mouthpiece, thereby maximally transferring vibrations to an air current inside the mouthpiece.
(44) Furthermore, the tunnel-type hole performs a function similar to the function of the inner space of a bell which generates significantly strong resonance, and thus vibrations transferred to the support plate generates strong resonance in the inner space of the tunnel-type hole and the resonance is, in turn, transferred to the support plate, thereby enabling the vertical vibrations of the support plate to greatly vibrate an air current inside the mouthpiece.
(45) Although the present invention has been described with reference to the preferred embodiments of the present invention as described above, it will be apparent to those skilled in the art that the present invention may be modified or varied in various manners without departing from the spirit and scope of the present invention set forth in the attached claims.