JP3514954B2 - Wind instruments for wind instruments - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a saxophone (S
AXOPHONE), trumpet (TRUMPET)
It relates to weak instruments for wind instruments such as.

[0002]

2. Description of the Related Art Generally, a saxophone (SAXOPHO
Wind instruments such as NE) and trumpet (TRUMPET) sound very loud when played in a normal state. When practicing these musical instruments, it is desirable to reduce the sound depending on the practice place.

By the way, in the case of a trumpet, since there are several mute units that fit into the morning glory (BELL), the sound can be reduced (a weak sound effect) or slightly muffled. It can be given (variable sound effect).

However, a trumpet silencer (hereinafter,
In the present specification, it refers to a "silencer in a narrow sense capable of suppressing vibration of sound and exhibiting a weakening effect". ) Is a fitting cup detachably attached to the opening of the morning glory of the trumpet, and a reverse trumpet-shaped breathing tube fixedly coupled to the opening of the fitting cup and formed in a tapered shape. ,
It is composed of a plurality of breath discharge small holes formed in the joint portion of the breath introducing cylinder along the circumferential direction.

[0005] However, this type of this silencer can be used only by putting it in the opening of the morning glory because of its form (the mounting position is limited), and the silencer is fitted into the opening. Then, there is a problem that the fitting cup significantly protrudes from the peripheral portion of the morning glory (inconvenience of storage or carrying). Further, the material of the muffler is usually fiber or aluminum, so that it is expensive.

On the other hand, in the case of the saxophone, even if the morning glory is packed with a low-pitched sound member (for example, a towel), the breath is discharged from the plurality of openings opened by the operation keys of the instrument body, so when practicing There is a problem that the sound cannot be made as weak as desired. Therefore,
When practicing a saxophone, there is a demand for a weak instrument for a wind instrument, which can make the emitted (playing) sound into a desired weak tone, as in the case of the above-mentioned trumpet silencer.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional demands, and a first object of the present invention is to reduce the sound emitted (strengthen) when practicing a wind instrument such as a saxophone or a trumpet. The object is to provide a weak instrument for a wind instrument. The second purpose is that it does not remarkably protrude from the wind instrument main body even when it is attached to the wind instrument (eliminating the inconvenience of storage or carrying). The third purpose is that the so-called salivation is good. A fourth object is to simplify the form and to manufacture the device at low cost. Fifth
The purpose of is to use a shape whose appearance is reduced (or “enlarged”) in a substantially similar manner to the opening end of the mouthpiece tube of the instrument body (or “inside the opening of the morning glory”). It can be done (selectivity of use point). A sixth object is that it can be easily attached to or detached from a wind instrument. A seventh purpose is to prevent the breath being blown from moving from the predetermined mating position. An eighth object is that, depending on the embodiment, the strength and weakness of the sound can be easily set according to the practice place by only replacing some of the constituent members.

[0008]

A weak instrument for a wind instrument according to the present invention has a fitting tube and a weak air resistance member provided in the fitting tube, and is attached to an open end of a musical instrument body. In the weak instrument for use, the fitting cylinder is a tubular elastic body with openable ends which is detachably mounted in the opening end of the blower tube interposed between the instrument body and the mouthpiece. The air resistance member is stretched in a sheet shape in a direction intersecting with the axial direction of the fitting cylinder so as to close at least one opening end of the fitting cylinder, and is breathed from the mouthpiece. It is characterized in that it is a mesh-shaped fiber that passes while giving resistance.

In the above, the air resistance member for low noise is a first mesh fiber stretched in a sheet shape at one opening end of the fitting cylinder in a direction intersecting with the axial direction of the fitting cylinder. On the other hand, on the other hand, the second mesh-shaped fiber is formed at the other opening end portion of the fitting cylinder so as to project like a hat in the axial direction of the fitting cylinder.

Further, the wind instrument weak instrument of the present invention is a wind instrument weak instrument which has a fitting tube and a weak air resistance member provided in the fitting tube, and which is attached to the opening end of the instrument body. The fitting cylinder is a cylindrical elastic body having openings at both ends which are detachably fitted into the opening of the morning glory of the musical instrument body, and the air resistance member for weak sound is at least one opening end of the fitting cylinder. It is a mesh-like fiber that is stretched in a sheet shape in a direction intersecting with the axial direction of the fitting cylinder so as to close the sheet and passes through while giving resistance to the breath blown from the mouthpiece.

Here, the "air resistance member for weak sound" means a sound emitted from the morning glory (Bell) of the musical instrument body by using the breath blown from the mouthpiece, or a plurality of holes opened by the operation keys of the musical instrument body. It means a member having a function of making the sound emitted from each opening sound more in a weak sound state than in a normal state due to air resistance.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention shown in the drawings will be described below with reference to a saxophone (SAXOP) which is an example of a wind instrument.
HONE) 1 will be described. 1 to 6
In the figure, reference numeral 2 denotes a body of a wind instrument, and the body 2 of the musical instrument has a plurality of operation keys 3 for producing various sounds as is well known. When these operation keys 3 are operated, a plurality of openings (not shown) are opened and closed, and various sounds can be produced.

Reference numeral 4 is a mouthpiece having a reed 5 with which the lips come into contact. Reference numeral 6 is a blower tube which is interposed between the musical instrument body 2 and the mouthpiece 4. The blower tube 6 is removable from the instrument body 2, but in the present embodiment, the blower tube 6 is also a part of the instrument body 2.

However, the blower tube 6 forming a part of the musical instrument body 2 is generally bent and formed in a J-shaped or corrugated shape whose diameter increases from one end to the other end. Has been done. That is, one end 6a of the opening on the side where the lead 5 is fitted has a small diameter, while the other end 6b of the opening on the side where the instrument body 2 is fitted has a large diameter.

Reference numeral 7 denotes a mouthpiece fitting support member which is fixedly provided in the opening one end 6a of the blower tube 6 in an externally fitted state. For this mouthpiece fitting support member 7, for example, a tubular cork material is used.

By the way, an example of the weak instrument 10 for a wind instrument of the present invention is detachably attached to the edge of the opening end 6a (6b) of the blower tube 6. Although FIG. 1 and FIG. 2 show the case where the blower tube 6 is mounted inside the opening end portion 6a, the blower tube 6 is attached to the other open end portion 6b or both opening end portions 6a and 6b, respectively. You may. further,
The weak instrument 10 for wind instruments is not limited to only the opening end of the mouthpiece tube, but its appearance is enlarged in a substantially similar manner (in the opposite case, it is "reduced"), and is also used for the morning glory opening. can do. Hereinafter, in the section of the embodiment of the present invention, for convenience of description, a case where the blower tube 6 is attached only to the open end 6a will be described.

As shown in FIGS. 3 to 5, the weak instrument 10 for a wind instrument includes a fitting cylinder 11 detachably attached to the opening end 6a of the blower tube 6, and at least one of the fitting cylinder 11 and the fitting cylinder 11. An air resistance member 12 for weak sound that is fixedly provided to the fitting cylinder so as to close the opening end and allows the breath blown from the mouthpiece 4 to pass while giving resistance. Here, the “air resistance member for weak sound” means the morning glory (Bel) of the musical instrument body 2 using the breath blown from the mouthpiece 4.
l) A member having a function of making the sound emitted from the sound audible in a weaker state than in a normal state due to air resistance.

The fitting cylinder 11 is made of an elastic material such as rubber or synthetic resin and is formed in a cylindrical shape. In this embodiment, a slightly soft synthetic rubber having an anti-vibration function is used. Therefore, when the fitting cylinder 11 made of a rubber material is inserted into the open end portion 6a (6b) of the blower tube 6, the fitting cylinder 11 is fitted to the inner peripheral wall 8 in a slightly pressed state. In this way, the fitting cylinder 1
No. 1 stops fitting while fitting on the inner peripheral wall 8 of the blower tube 6 (this is referred to as "slide prevention effect"). Further, the outer peripheral wall 11 a of the fitting cylinder 11 is the inner peripheral wall 8 of the blower tube 6.
The vibration of the blower tube 6 is suppressed (this is referred to as a "sound absorbing effect").

On the other hand, the weak air resistance member 12 is a mesh-shaped fiber that does not absorb water, such as glass fiber, metal fiber, and synthetic fiber, and in this embodiment, it is in the axial direction of the fitting cylinder 11. It is stretched like a sheet in the intersecting direction. The outer end portion of the fitting cylinder 11 on which the mesh-shaped fibers are stretched is somewhat flanged. In this case, the fitting cylinder 11
The outer diameter of the flange-shaped outer end of
It is larger than the inner diameter of the open end 6a of the blower tube 6. Further, depending on the design, a flange portion may be provided around the outer end portion of the fitting cylinder 11.

In the above structure, as shown in FIGS. 1 and 2, the instrument body 2 is interposed between the instrument body 2 having the operation keys 3 and the mouthpiece 4 having the reeds 5 and is also the instrument body 2.
The weak instrument 10 for a wind instrument of the present invention is fitted to at least one opening end 6a (6b) of the blower tube 6 which constitutes a part of the above. In this case, the weak instrument 10 for wind instruments is picked up with a finger and fitted into the blower tube 6.

However, first, before the mouthpiece 4 is fitted into the mouthpiece fitting support member 7, the fitting cylinder 11 is inserted into the opening end portion 6a of the blower tube 6, and the fitting cylinder 11 is elastic. Since it is a body, it fits into the inner peripheral wall 8 of the opening end 6a while being slightly displaced inward, and its outer end projects slightly from the opening end 6a. The wall 11a stops in a state of being in pressure contact with the inner peripheral wall 8 of the opening end portion 6a. As a result, a slide prevention effect, a sound absorbing effect, and the like can be obtained.

Next, as shown in FIG. 2, the mouthpiece 4 is fitted to the mouthpiece fitting support member 7. In this embodiment, since the fitting cylinder 11 of the wind instrument weak instrument 10 is inserted into the opening end 6a (6b) of the mouthpiece tube 6, the mouthpiece 4 is directly or indirectly fitted to the mouthpiece tube 6. Even if they are combined, there is no hindrance to the installation.

Therefore, as shown in FIG. 6, the mouthpiece 4
When the breath B is blown from the side, the breath B first blows against the weak air resistance member 12 of the wind instrument weak instrument 10, and then acts like turbulence in the inside 9 of the mouthpiece 4 and part of the inside 9 Due to the increase in the internal pressure of the air resistance member 1
It passes through the air resistance member 12 while receiving the resistance of 2. That is, the presence of the air resistance member 12 prevents the practitioner from blowing the amount of breath blown into the blow-off part pipe 6 at once (this is referred to as "reduction of the breathing amount to the blow-out part pipe" for convenience). In other words, the air resistance member 12 functions as a regulating valve so that the breath of the practitioner does not pass through the air resistance member 12 at once.

As a result, the sound emitted from the morning glory (Bell) of the instrument body, or the sound emitted from the plurality of openings opened by the operation keys of the instrument body is weaker than in the normal state. Sounds like.

By the way, in the above case, the saliva S mixed in the breath B is blown to the weak air resistance member 12, but in the present embodiment, the weak air resistance member 12 is a mesh fiber which does not absorb water. Therefore, as shown in FIG. 6, the saliva S easily scatters toward the musical instrument body 2 side with the breath passing through the air resistance member 12. Therefore, the air resistance member 12 is not soaked with the saliva S, and so-called saliva removal is good.

[0026]

EXAMPLE In the first example described in the embodiment of the present invention, it is desirable that the fitting cylinder 11 is made of an elastic material such as synthetic resin or rubber, but the opening end portion 6a of the blower tube 6 is formed. (6b)
If it can be fitted to the inner peripheral wall 8 so as not to slide,
It may be formed of metal. In this case, a stopper flange is formed on the outer end of the fitting tube 11 made of metal so as to abut the opening edge of the blowout tube 6, or the outer wall of the fitting tube 11 is provided on the peripheral wall of the fitting tube 11. A claw piece that is pressed into engagement with the inner peripheral wall 8;
An engaging portion such as a coupling protrusion may be formed.

Next, in this section, other examples described in the embodiment of the present invention will be described. In the description of the other embodiments, the same parts as those in the first embodiment are designated by the same reference numerals, and the duplicated description will be omitted.

The weak instrument 10A for wind instruments of FIGS. 7 to 9 is
It is a second embodiment of the present invention. The main difference between the second embodiment and the first embodiment is that the air resistance member 1 for weak sound is used.
The point is that a plurality of 2A are provided.

Thus, the air resistance member 12A for low noise is
The mesh-shaped fibers, which are provided at both ends of the opening of the fitting cylinder 11A, are glass fibers, metal fibers, synthetic fibers, and the like in the same manner as in the first embodiment. It is stretched like a sheet.

In this embodiment, as shown in FIG. 9, the breath B blown from the mouthpiece 4 side has the first mesh fibers 12 located on the outer end side of the fitting cylinder 11A.
Since A and the second mesh-shaped fiber 12A located on the inner end side of the fitting cylinder 11A are forced to pass through each other, the resistance against the passage of the breath B is increased, and a weak sound effect is obtained more reliably. be able to.

A weak instrument 10B for a wind instrument shown in FIGS. 10 to 12.
Is a third embodiment of the present invention. The main difference of the third embodiment from the first embodiment is that the weak air resistance members 12B and 12B1 of different forms are combined.

Thus, the air resistance member for low noise is the first mesh-shaped fiber 12 stretched in a sheet shape at one opening end of the fitting cylinder 11B in a direction intersecting with the axial direction of the fitting cylinder.
B, on the other hand, and the second mesh-shaped fiber 12 projecting like a hat in the axial direction of the fitting cylinder at the other open end of the fitting cylinder 11B.
And B1. Here, the term "hat shape" means a shape such as a cap shape, a bag shape, a conical shape, or a truncated cone shape that projects outward from the opening end surface of the fitting cylinder 11B. The second
As the mesh-shaped fiber 12B1, one fan-shaped mesh-shaped fiber formed in a conical shape is used in this embodiment.

Also in this embodiment, the breath B blown from the mouthpiece 4 side and the first mesh-shaped fiber 12B located on the outer end side of the fitting cylinder 11B and the inside of the fitting cylinder 11B. Since there is no choice but to pass the second mesh-shaped fibers 12B1 located on the end side, the resistance to the passage of the breath B increases (meaning that the resistance area of the mesh-shaped fibers increases), and even more. A weak sound effect can be obtained.

A weak instrument 10C for wind instruments of FIGS. 13 to 15
Is a fourth embodiment of the present invention. The main difference between the fourth embodiment and the first embodiment is that the appearance is "enlarged" in a substantially similar manner, not only in the open end of the mouthpiece tube of the instrument body. , "Inside the opening 16 of the morning glory 15" is also characterized in that it is used (selectivity of use location). FIG. 13 shows an example of inserting the wind instrument weak instrument 10C into the opening 16 of the morning glory 15.

By the way, the shape of the fitting cylinder 11C of the weak instrument for wind instrument 10C is slightly different from that of the first embodiment. That is, a slightly thick shielding wall portion 19 that intersects with the outer peripheral wall portion 17 and has a center hole 18 is integrally formed in one opening portion (for example, the opening on the outer end portion side) of the fitting cylinder 11C. Is provided for the purpose.

The air resistance member for weak sound is the third embodiment of the present invention.
As in the case of the embodiment, the center hole 18 of the fitting cylinder 11C is
A first mesh-shaped fiber 12C stretched in a sheet shape on the other hand, and a second mesh which is located inside the fitting cylinder 11C and which projects from the central hole 18 in the axial direction of the fitting cylinder in a hat shape. It is composed of mesh-shaped fibers 12C1.

With this configuration, the weak instrument 1 for wind instruments
0C is, for example, the opening 16 of the morning glory 15 of the saxophone 1.
It is possible to achieve the same purpose as in the first embodiment by completely inserting it (inserting it so that it does not significantly project in the case of a trumpet). In addition, in the fourth embodiment, the other opening of the fitting cylinder 11C (for example, the opening on the inner end side).
A third mesh-shaped fiber may be stretched over. By the way, depending on the design, the second opening may be provided in the other opening of the fitting cylinder 11C.
The shielding wall portion may be integrally provided, and the third and fourth mesh fibers as described above may be provided on the second shielding wall portion.

The weak instrument 10D for wind instruments of FIGS. 16 and 17
Is a fifth embodiment of the present invention. The main difference between the fifth embodiment and the first embodiment is that the external appearance is "enlarged" in a substantially similar manner not only in the open end of the blower tube of the instrument body. , "Inside the opening of the morning glory" is also characterized in that it is used (selectivity of the place of use). Although not particularly shown, this wind instrument weak instrument 10D can also be used by inserting the wind instrument weak instrument 10D into the opening of the morning glory, as in the fourth embodiment of the present invention.

By the way, the shape of the fitting cylinder 11D of the weak instrument for wind instrument 10D is slightly different from that of the first embodiment. That is, the slightly thick first shielding wall portion 1 that has the central hole 18D intersects the outer peripheral wall portion 17D at one opening portion (for example, the opening on the outer end portion side) of the fitting cylinder 11D.
9D is integrally provided. Therefore, this is the same as the fourth embodiment of the present invention in this respect, except that the shielding wall portion 19D is detachably fitted to the outer peripheral wall portion 17D. And, in the first shielding wall portion 19D,
For example, similar to the fourth embodiment of the present invention, the central hole 18D
A first mesh-shaped fiber 12D stretched in a sheet shape on the other hand, and a second mesh located on the one hand in the fitting cylinder 11D and projecting like a hat from the central hole 18D in the axial direction of the fitting cylinder. It is composed of mesh-shaped fibers 12D1.

Also, the main difference from the first embodiment is that, similarly to the fourth embodiment of the present invention, it can be attached to and detached from the other opening (for example, the opening on the inner end side) of the fitting cylinder 11D. The second shielding wall portion 19D1 to be fitted is provided, and the second shielding wall portion 19D1 is provided.
The difference is that a plurality of mesh-shaped fibers 12D are provided in the central hole 18D1 of the same as the first shielding wall portion 19D.

In this embodiment, a plurality of shielding wall portions 19D, 19D1 having a single or a plurality of mesh-shaped fibers of different shapes are prepared in advance, and it is possible to suit the place (environment) where the practice is used. Sound shielding wall portion 19D (19D1) is integrally attached to the fitting cylinder 11D, and the weak instrument for wind instrument 1
There is an advantage that 0D can be inserted and used in the opening of the morning glory.

By the way, in each of the embodiments of the present invention, a cylindrical sound absorbing member (for example, made of glass wool) 21 is provided on the inner peripheral wall of the outer peripheral wall of the fitting cylinders 11, 11A, 11B, 11C and 11D. You may decorate. For example, if this concept is applied to the fifth embodiment of the present invention, it becomes an embodiment as shown in FIGS. 18 and 19. For this last example,
In order to avoid duplicated description, the same reference numerals as in the fifth embodiment are used for convenience.

[0043]

As is clear from the above description, the present invention has the following effects. (1) When practicing a wind instrument, it is possible to reduce the amount of breath for the mouthpiece tube. As a result, the emitted (playing) sound can be reduced (made weaker). (2) Even when mounted on a wind instrument, it does not significantly project from the wind instrument body (has storability). (3) Since the mesh-shaped fiber is used for the air resistance member for low noise, so-called saliva removal is good. (4) The shape can be simplified and the manufacturing cost can be reduced. (5) The appearance form is reduced in a substantially similar manner (or "enlargement").
This can also be used at the open end of the mouthpiece tube of the musical instrument body (or "inside the opening of the morning glory") (there is a selectivity of the use location). (6) Since the fitting cylinder is used, it can be easily attached to or removed from the saxophone. (7) Since the fitting cylinder is made of an elastic material, it fits into the opening end portion of the blower tube in a fit state. Therefore, the blown breath does not move from the predetermined fitting position. (8) Depending on the embodiment, it is possible to easily set the strength of the sound corresponding to the practice place by only replacing some of the constituent members.

[Brief description of drawings]

1 to 6 are explanatory views showing a first embodiment of the present invention. 7 to 9 are explanatory views showing a second embodiment of the present invention. Figure 1
0 to 12 are explanatory views showing a third embodiment of the present invention. 13 to 15 are explanatory views showing a fourth embodiment of the present invention.
16 and 17 are explanatory views showing a fifth embodiment of the present invention. FIG. 18 and FIG. 19 are explanatory views of an example including the main part of the present invention as it is and considering other constituent requirements.

FIG. 1 is a perspective view showing an example of an embodiment.

FIG. 2 is a schematic explanatory view of a fitted state in FIG.

FIG. 3 is an exploded perspective view showing a relationship between a mouthpiece and a blower tube.

FIG. 4 is an explanatory view from a perspective view.

5 is an explanatory view from line 5-5 of FIG. 4. FIG.

FIG. 6 is a schematic explanatory view of a usage state.

FIG. 7 is a perspective view of the second embodiment.

FIG. 8 is an exploded perspective view showing the relationship between the mouthpiece and the blower tube.

FIG. 9 is a schematic explanatory view of a usage state.

FIG. 10 is a perspective view of the third embodiment.

FIG. 11 is an explanatory diagram from line 11-11 of FIG. 10.

FIG. 12 is an exploded perspective view showing the relationship between the mouthpiece and the blower tube.

FIG. 13 is an explanatory diagram showing an example of a usage state of the fourth embodiment.

FIG. 14 is a perspective view of a fourth embodiment.

FIG. 15 is a schematic explanatory view of a vertical section of the fourth embodiment.

FIG. 16 is a perspective view of the fifth embodiment.

FIG. 17 is a schematic explanatory view of a vertical section of a fifth embodiment.

FIG. 18 is a perspective explanatory view of an example including the main part of the present invention as it is in the case of using the fifth embodiment and adding other constituent requirements.

FIG. 19 is a schematic explanatory view of a longitudinal section of an example including the main part of the present invention as it is in the case of using the fifth embodiment and adding other constituent requirements.

[Explanation of symbols]

2 ... instrument body, 4 ... mouthpiece, 6 ... mouthpiece tube, 6
a, 6b ... Open end portion, 7 ... Fitting support member, 8 ... Inner peripheral wall,
9 ... Inside the mouthpiece 10, 10A, 10B, 10
C, 10D ... Wind instruments, 11, 11A, 11B,
11C, 11D ... Fitting cylinder, 11a ... Outer peripheral wall, 12, 12
A, 12B, 12C, 12C1, 12D, 12D1 ... Air resistance member for low noise, 15 ... Morning glory, 16 ... Opening of morning glory,
17, 17D ... Outer peripheral wall portion, 18, 18D, 18D1 ... Center hole, 19, 19D, 19D1 ... Shielding wall portion, 21 ... Sound absorbing member, B ... Breath, S ... Saliva.

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G10D 9/06 G10D 7/08 G10D 7/10 G10K 11/16

Claims (6)

(57) [Claims] 1. A sound instrument for wind instruments, comprising a fitting tube and an air resistance member for weak sound provided on the fitting tube, which is attached to an opening end of a musical instrument body, wherein the fitting tube is a musical instrument. A tubular elastic body with openable ends that is detachably attached to the opening end of the blower tube interposed between the main body and the mouthpiece.
The weak air resistance member is stretched in a sheet shape in a direction intersecting with the axial direction of the fitting cylinder so as to close at least one opening end of the fitting cylinder, and is blown from the mouthpiece. A low-pitched sound instrument for wind instruments, characterized in that it is a mesh-like fiber that passes while giving resistance to breath. 2. The low-pitched sound instrument for wind instruments according to claim 1, wherein the low-noise air resistance member projects like a hat in the axial direction of the fitting cylinder. 3. The low-noise air resistance member according to claim 1, wherein the air resistance member for low noise is stretched in a sheet shape at one opening end of the fitting cylinder in a direction intersecting with the axial direction of the fitting cylinder. A wind instrument, comprising one mesh-shaped fiber and a second mesh-shaped fiber that protrudes like a hat in the axial direction of the fitting cylinder at the other open end of the fitting cylinder. Soft instrument. 4. A weak instrument for a wind instrument, comprising a fitting tube and an air resistance member for weak sound provided in the fitting tube, which is attached to an opening end of a musical instrument body, wherein the fitting tube is a musical instrument. It is a tubular elastic body of which both ends are opened and closed so as to be removably fitted in the opening of the bosh of the main body, and the air resistance member for weak sound is the fitting cylinder so as to close at least one opening end of the fitting cylinder. Is stretched in a sheet shape in the direction intersecting with the axial center direction of
A low-pitched sound instrument for wind instruments, which is a mesh-shaped fiber that passes through while giving resistance to the breath blown from the mouthpiece. 5. A shield wall portion having a central hole, which is detachably fitted to an outer peripheral wall portion of the fitting cylinder, at one opening of the fitting cylinder. On the other hand, the weak air resistance member is provided so as to close the central hole. 6. The low-noise air resistance member according to claim 4, wherein the first mesh-shaped fiber stretched like a sheet in the center hole is located in the fitting cylinder and fitted from the center hole. A weak instrument for a wind instrument, comprising a second mesh-shaped fiber protruding in a hat shape toward the axial direction of the cylinder.