JP7587259B2 - Wind Instrument Auxiliary Equipment - Google Patents

Description

The present invention relates to a wind instrument auxiliary device that can be attached to a wind instrument with a bell part, such as a trumpet or trombone.

There are many types of wind instruments, some of which, such as trumpets, trombones, and saxophones, have a mute attached to the bell to change the tone or reduce the volume. In wind instruments, the vibration of the player's lips is transmitted to the mouthpiece, producing the sound characteristic of the instrument. When breath is blown into the mouthpiece, the breath moves to the bell.
Such a wind instrument is disclosed, for example, in US Pat. No. 5,399,324.

Patent No. 5007842

In a wind instrument with a bell, the breath of the player blown into the mouthpiece is expelled from the bell, and at that time, droplets of the player's saliva contained in the breath may also fly out from the bell at the same time. In other words, the player's saliva splatters all over the surrounding area, which is unsanitary.

In recent days, the COVID-19 pandemic has spread worldwide, making it necessary to thoroughly maintain social distance and take measures such as wearing masks. In these times, there is concern that if a player is a carrier of the COVID-19 virus, the coronavirus may be mixed with the player's saliva and dispersed to the surrounding area when playing a wind instrument.

Therefore, the objective of the present invention is to provide a wind instrument auxiliary tool that can reduce the scattering of saliva contained in the player's breath.

The first aspect for solving the above problem is a wind instrument auxiliary tool for a wind instrument having a bell portion, which has a filter member arranged in the opening of the bell portion of the wind instrument, the filter member being breathable and capable of reducing the passage of scattered saliva, and the filter member being provided with slits or seams.

The wind instrument assisting tool of this aspect has a filter member arranged in the opening of the bell part of the wind instrument. That is, the inside and outside of the bell part are separated by the filter member. As a result, the breath of the player discharged from the bell part reaches the filter member.
The filter member is breathable and can prevent the passage of scattered saliva, so that the breath of the player passes through the filter member, but the filter member captures the saliva droplets contained in the breath. As a result, the wind instrument can produce the same sound as if the filter member were not attached to the wind instrument, and the filter member reduces the scattering of saliva droplets contained in the breath of the player from the morning glory.
In other words, the breath of the player can pass through the filter member, and the filter member does not impede the passage of the breath. When the breath passes through the filter member, droplets of saliva contained in the breath are captured by the filter member.
This reduces the risk of saliva droplets from the player's breath reaching people around the player, making it more hygienic.
In addition, since the filter member has a slit or a seam, the player can open the slit or the seam of the filter member to access the inside of the morning glory portion.

It is preferable that there are at least two filter members, and that the slits or seams of each filter member intersect with each other.

Here, "intersection" refers to a state in which the slits or seams of the filter members (wind instrument auxiliary tool) appear to intersect when viewed from the front. In other words, when viewed from the front, the filter members overlap from the front to the back, and the slits or seams of at least one filter member intersect with the slits or seams of at least another filter member.
According to this configuration, since there are at least two filter members and the slits or seams of the filter members cross each other, when the mute is used, a gap is unlikely to occur between the filter members and the mute. In other words, a slight gap that occurs between the slit or seam of any filter member and the mute inserted in the morning glory or the player's hand (arm) is blocked by another filter member.
In addition, when the mute is attached to the morning glory, the edge of the slit (or the edge of the seam) of the filter member undergoes some plastic deformation, so even if the mute is removed, the edge of the slit (or the edge of the seam) does not return to its original shape. In other words, the slit (or the seam) does not close completely, and a gap occurs.
However, with this configuration, the slits or seams of one filter member intersect with the slits or seams of another filter member, so that the gaps between them are maintained.
In other words, as lines (slits or seams) intersect to form points (intersections), the gaps that pass through all of the filter members are small.

It is preferable to have a reinforcing member that reinforces the edge of the slit or the edge of the seam.

According to this configuration, the edge of the slit or the edge of the seam is reinforced with a reinforcing member, which increases the strength of the filter member and improves its durability. In addition, when the mute is attached to the morning glory section, the edge of the slit or the edge of the seam is less likely to undergo plastic deformation. Therefore, when the mute is removed from the morning glory section, the slit or the seam is likely to return to its original shape. As a result, the gap penetrating each filter member is smaller than when the reinforcing member is not present.

It is preferable to have a fixing portion that limits the length of the slit or seam to be smaller than the diameter of the opening of the morning glory portion.

With this configuration, the slit or seam does not expand beyond the opening of the bell section. This prevents the wind instrument auxiliary tool from coming off the bell section toward the mouthpiece (i.e., the bell section from getting stuck in the slit or seam).

The mounting member is a string-like member, and a mounting member attachment section is provided on the peripheral edge of the filter member, through which the mounting member is circumferentially inserted, and the mounting member and the mounting member attachment section are movable relative to each other, and it is preferable that both ends of the mounting member are exposed from the mounting member attachment section.

According to this configuration, the mounting member is a string-like member, and an mounting member attachment portion is provided on the peripheral edge portion of the filter member, through which the mounting member is attached in the circumferential direction, the mounting member and the mounting member attachment portion are capable of relative movement, and both ends of the mounting member are exposed from the mounting member attachment portion. As a result, when both ends of the string-like mounting member are pulled, the mounting member attachment portion is tightened and the mounting member attachment portion reduces in diameter.
Therefore, when the mounting member attachment portion is arranged on the back side of the opening of the morning glory portion and the mounting member attachment portion is pulled, the wind instrument auxiliary tool can be easily attached to the wind instrument with the filter member arranged in the opening of the morning glory portion.
Furthermore, by tying the string-like attachment member, the wind instrument auxiliary tool can be easily fixed to the wind instrument.
Furthermore, by undoing the knot of the string-like attachment member and expanding the diameter of the attachment member mounting portion, the wind instrument auxiliary device can be easily removed from the wind instrument.

It is preferable that the mounting member attachment portion continuously covers the periphery of the mounting member.

With this configuration, the mounting member attachment portion continuously covers the periphery of the mounting member, so the mounting member and the mounting member attachment portion are less likely to become misaligned, and the mounting member can reliably fix the mounting member attachment portion to the morning glory portion.

The second aspect of the present invention is a wind instrument auxiliary tool for a wind instrument having a bell-shaped portion, which has a filter member arranged in the opening of the bell-shaped portion of the wind instrument, the filter member being breathable and capable of reducing the passage of scattered saliva, the filter member having an openable opening forming portion, and the opening area of the opening forming portion being changeable.

According to this aspect of the wind instrument auxiliary tool, the filter member has an opening forming portion that can be opened, so a mute can be placed inside the bellows portion, or the player can insert their hand into the bellows portion. In addition, because the opening area of the opening forming portion can be changed, the opening area of the opening forming portion can be narrowed by removing the mute from the bellows portion or by removing the player's hand from the bellows portion.

The third aspect of the present invention is a wind instrument auxiliary for a wind instrument having a bell-shaped portion, which has a plurality of filter members arranged in the opening of the bell-shaped portion of the wind instrument, each filter member being breathable and capable of reducing the passage of scattered saliva, each filter member closing a portion of the opening of the bell-shaped portion, and one of the filter members being arranged over the entire area of the opening, and some of the filter members having a portion arranged closer to the opening than the other filter members and a portion arranged farther from the opening.

An aspect related to the third aspect is a wind instrument auxiliary for a wind instrument having a bell portion, which has a plurality of filter members arranged in the opening of the bell portion of the wind instrument, each filter member being breathable and capable of reducing the passage of scattered saliva, each filter member closing a portion of the opening of the bell portion so that the entire area of the opening is closed by one of the filter members, and each filter member has a portion that is located closer to the opening than the other filter members and a portion that is located farther from the opening.

According to the third aspect of the wind instrument aid, each filter member closes a portion of the opening of the morning glory portion, and the entire area of the opening is closed by one of the filter members, so that the wind instrument player's breath passes through one of the filter members, and saliva droplets contained in the breath are captured by the filter member.

In addition, each filter member closes a portion of the opening, and some filter members have portions that are positioned closer to the opening than the other filter members, and portions that are positioned farther from the opening, so that some filter members are arranged overlapping each other, and by partially eliminating the overlapping portions, a hole for inserting a mute into the opening can be formed.

Since the filter members overlap, there are no gaps between them. The holes for inserting the mute can be formed by pushing each filter member in a different direction. The holes for inserting the mute can be formed by pushing each filter member apart.

As a result, the size of the holes formed is the minimum necessary, each filter member fits tightly around the mute, and the gaps between each filter member and the mute are extremely small. As a result, very little exhaled air leaks to the outside from between each filter member and the mute, and the amount of saliva contained in the leaked exhaled air is also very small.

The wind instrument assisting device of the present invention prevents the scattering of saliva contained in the player's breath without affecting the sound produced by the wind instrument.

1A and 1B are perspective views of a wind instrument auxiliary device having two filter members according to this embodiment, in which (a) shows a state in which the slits of both filter members intersect and the slits of both filter members are closed, (b) shows a state in which the slit of one filter member is open, and (c) shows a state in which the slits of both filter members are open. 1A is an exploded front view of the filter unit of the wind instrument auxiliary device of FIG. 1, FIG. 1B is an assembled front view of the filter unit of FIG. 1A, FIG. 1C is a front view showing the state in which a string-shaped mounting member is attached to the filter unit, and FIG. 1D is an exploded oblique view of one of the filter members. 1A is a perspective view showing the state immediately before the wind instrument auxiliary tool of FIG. 1 is attached to the morning glory portion of the wind instrument, and FIG. 1B is a perspective view showing the state after the wind instrument auxiliary tool is attached to the morning glory portion of the wind instrument. 3(a) is a perspective view showing the state in which a slit in one of the filter members of the wind instrument auxiliary device in FIG. 3(b) is open, and FIG. 3(b) is a perspective view showing the state in which the slits in both filter members are open and the mute is attached to the wind instrument. 1A is an oblique view of a wind instrument auxiliary device according to another embodiment of the present invention, FIG. 1B is an oblique view showing the wind instrument auxiliary device of FIG. 1A with the mounting member removed from the filter member, and FIG. 1C is an oblique view showing the wind instrument auxiliary device of FIG. 1A attached to a wind instrument. 1A is a perspective view showing a wind instrument to which a wind instrument auxiliary device of another embodiment is attached, and a mute, and FIG. 1B is a perspective view showing the mute attached to the wind instrument. 1A is a side view of the bell-shaped portion of a wind instrument equipped with a wind instrument auxiliary device according to another embodiment, FIG. 1B is a perspective view showing the bell-shaped portion of FIG. 1A and the wind instrument auxiliary device separated, and FIG. 1C is a perspective view showing a mute installed on the bell-shaped portion. 7A is a front view showing the filter members of a wind instrument auxiliary device arranged side by side with the edges of the slits plastically deformed by inserting a mute through them, FIG. 7B is a front view showing the filter members of FIG. 7A stacked on top of each other, and FIG. 7C is a front view of the morning glory portion with the mute removed. 1A is a perspective view showing a state in which a first piece and a second piece of a filter member are partially overlapped, and FIG. 1B is a perspective view showing a state in which the first piece and the second piece are separated from each other. FIG. 13 is a front view of a wind instrument auxiliary tool according to yet another embodiment of the present invention. FIG. 11 is an exploded front view of the wind instrument auxiliary tool of FIG. 10. FIG. 12 is an exploded front view of the wind instrument auxiliary tool of FIG. 11 . 11 is a front view showing the wind instrument auxiliary tool of FIG. 10 with a filter member in an open state. FIG. FIG. 11 is a partial perspective view showing the state in which the wind instrument auxiliary tool of FIG. 10 is attached to the bell part of a wind instrument and a mute is further attached. 11A and 11B are front views showing modified filter units of the wind instrument auxiliary device of Figure 10, where (a) is an exploded front view of the filter unit constituting the wind instrument auxiliary device, (b) is a front view showing the respective filter members of the filter unit of (a) assembled, and (c) is a front view showing the filter unit in the state of (b) with a mute inserted therein. 10 and 15 are front views showing modified filter units of still another wind instrument auxiliary device, in which (a) is an exploded front view of the filter unit constituting the wind instrument auxiliary device, (b) is a front view showing the respective filter members of the filter unit in (a) assembled, and (c) is a front view showing the filter unit in the state in (b) with a mute inserted therein.

The following description will be given with reference to the drawings.
As shown in FIG. 1(a), the wind instrument auxiliary tool 1 has a filter unit 2 and a mounting member 3. As will be described in detail later, the wind instrument auxiliary tool 1 is attached to the morning glory part 21 (bell) of a trumpet 20 (wind instrument) shown in FIG. 3 for use. The trumpet 20 (wind instrument) has a morning glory part 21 and a mouthpiece 22 (mouthpiece) into which the player injects breath. An opening 21b is provided at the tip of the morning glory part 21. The morning glory part 21 is a part that has a substantially conical shape with a smaller diameter as it approaches the mouthpiece 22 side from the opening 21b side. The breath injected into the trumpet 20 from the mouthpiece 22 moves to the morning glory part 21 side.

As shown in FIG. 1(b), the filter unit 2 has a first filter member 4 and a second filter member 5. The first filter member 4 and the second filter member 5 are made of a material that has breathability, such as gauze or nonwoven fabric, and can prevent the scattering of liquid droplets (mist liquid).

As shown in Figures 2(a) and 2(d), the first filter member 4 has a first half-piece 4a and a second half-piece 4b.

The first piece 4a has an outer shape of a half circle, with a circumferential portion 6a that forms a semicircular arc and a linear diameter portion 6b that is continuous with each other. A reinforcing piece 10a (reinforcing member) is attached to the diameter portion 6b. The reinforcing piece 10a is made of the same material as the first piece 4a. The reinforcing piece 10a has a shape in which a flat member is folded in half along the longitudinal direction.

The diameter portion 6b is sandwiched between the reinforcing piece 10a folded in half, and the first piece 4a and the reinforcing piece 10a are integrated by sewing. The portion of the first piece 4a where the reinforcing piece 10a is provided is stronger and has a higher degree of shape restoration than the portion of the first piece 4a where the reinforcing piece 10a is not provided. In addition, the reinforcing piece 10a can prevent damage such as fraying of the diameter portion 6b. The portion of the first piece 4a where the reinforcing piece 10a is provided has a higher degree of shape restoration than the portion of the first piece 4a where the reinforcing piece 10a is not provided.

The second piece 4b has a structure similar to that of the first piece 4a. That is, the second piece 4b has a circumferential portion 7a and a diameter portion 7b, and the diameter portion 7b is reinforced with a reinforcing piece 10b (reinforcing member) similar to the reinforcing piece 10a.

The first piece 4a and the second piece 4b are arranged so that the reinforcing pieces 10a and 10b face each other and match. A slit 14a (a cut, a tear, an opening-forming portion) is formed between the reinforcing pieces 10a and 10b. The slit 14a can also be considered to be a cut or a tear formed in the first filter member 4.

The first filter member 4 has a circular shape because the first piece 4a and the second piece 4b are arranged such that the circumferential portion 6a of the first piece 4a and the circumferential portion 7a of the second piece 4b are arranged on approximately the same circumference. Here, in FIG. 2(a), the first piece 4a and the second piece 4b are depicted slightly apart so that the lines of the members do not overlap and become difficult to see.

The second filter member 5 has a structure similar to that of the first filter member 4 .
That is, the second filter member 5 has a first piece 5a and a second piece 5b each having a halved shape, and a reinforcing piece 11a is sewn to the straight portion 8b of the first piece 5a to be integrated therewith. Similarly, a reinforcing piece 11b is sewn to the straight portion 9b of the second piece 5b to be integrated therewith. The first piece 5a and the second piece 5b are arranged so that the reinforcing pieces 11a and 11b face each other and coincide with each other. A slit 14b (a cut or a tear) is formed between the reinforcing pieces 11a and 11b. The second filter member 5 has a circular shape as a whole, with the circumferential portion 8a of the first piece 5a and the circumferential portion 9a of the second piece 5b being arranged on substantially the same circumference.

As shown in FIG. 2(b), the first filter member 4 and the second filter member 5 are overlapped so as to be concentric and are sewn together around the entire periphery to form the filter unit 2. As shown in FIG. 2(b), the reinforcing pieces 10a, 10b on the first filter member 4 side and the reinforcing pieces 11a, 11b on the second filter member 5 side are orthogonal (intersect).

Here, "orthogonal" (intersecting) refers to the state in which the slits 14a, 14b of each filter (first filter member 4, second filter member 5) appear to be "orthogonal" (intersecting) when the filter unit 2 (morning glory portion 21) is viewed from the front.

The first piece 4a and the second piece 4b of the first filter member 4 are integrated with the first piece 5a and the second piece 5b of the second filter member 5 by sewing them together. Conversely, the first piece 5a and the second piece 5b of the second filter member 5 are integrated with the first piece 4a and the second piece 4b of the first filter member 4 by sewing them together. In other words, the first filter member 4 and the second filter member 5 are sewn together and joined at angular positions offset by 90 degrees.

A slit 14a is formed between the first piece 4a (reinforcement piece 10a) and the second piece 4b (reinforcement piece 10b) of the first filter member 4. In other words, the slit 14a can be considered to be a cut or tear formed between the integrated first piece 4a and second piece 4b. Similarly, a slit 14b is formed between the first piece 5a (reinforcement piece 11a) and the second piece 5b (reinforcement piece 11b) of the second filter member 5. As shown in FIG. 2(b), the slits 14a and 14b are perpendicular (intersect).

Fixed parts 17a, 17b are provided near both ends of the slit 14a. The fixed parts 17a, 17b are constructed by sewing. The fixed parts 17a, 17b make the length of the slit 14a smaller than the diameter of the opening 21b of the bell part 21 of the trumpet 20 (wind instrument), and set to a length that allows the mute 15 and the player's hand to be inserted.

Similarly, fixing parts 18a, 18b are provided near both ends of the slit 14b by sewing. The fixing parts 18a, 18b make the length of the slit 14b smaller than the diameter of the opening 21b of the morning glory part 21, and set to a length that allows the mute 15 and the player's hand to be inserted.

In this embodiment, the first piece 4a (reinforcement piece 10a) and the second piece 4b (reinforcement piece 10b) of the first filter member 4 are butted together and do not overlap, but the first piece 4a (reinforcement piece 10a) and the second piece 4b (reinforcement piece 10b) may partially overlap.

That is, as shown in FIG. 9(a) and FIG. 9(b), the diameter portion 6b (reinforcement piece 10a) of the first piece 4a and the diameter portion 7b (reinforcement piece 10b) of the second piece 4b may overlap in the front-back direction of the first piece 4a and the second piece 4b. In this case, as shown in FIG. 9(a), a seam 16 is formed between the first piece 4a (reinforcement piece 10a) and the second piece 4b (reinforcement piece 10b). The seam 16 is simply an overlap between the diameter portion 6b (reinforcement piece 10a) of the first piece 4a and the diameter portion 7b (reinforcement piece 10b) of the second piece 4b, and is not fixed. Therefore, a hole penetrating the first filter member 4 can be formed in the seam 16.

Similarly, the first piece 5a (reinforcement piece 11a) and the second piece 5b (reinforcement piece 11b) of the second filter member 5 may also partially overlap, forming a seam between them.

Further, a substantially annular attachment member mounting portion 12 is formed on the peripheral edge portion of the filter unit 2 .
A circular portion 2a near the outer periphery of the filter unit 2 and a circular portion 2b slightly inward from the portion 2a are sewn together, and a mounting member mounting portion 12, which is an annular passage, is formed between the two portions 2a and 2b. The mounting member mounting portion 12 has openings 12a and 12b that face each other closely. As shown in FIG. 3, the diameter of the mounting member mounting portion 12 is larger than the diameter of the morning glory portion 21 of the trumpet 20.

On the other hand, the mounting member 3 is a long, thin, string-like member. The length of the mounting member 3 is longer than the passage length of the mounting member mounting portion 12 of the filter unit 2. That is, when the mounting member 3 penetrates the mounting member mounting portion 12 in the circumferential direction, both ends of the mounting member 3 are exposed from the mounting member mounting portion 12 (entrances 12a, 12b) as shown in FIG. 2(c). The intermediate portion of the mounting member 3 is continuously covered by the mounting member mounting portion 12. Therefore, the connection between the mounting member 3 and the mounting member mounting portion 12 is strong.

When attaching the wind instrument auxiliary tool 1 to the bell part 21 of the trumpet 20 (wind instrument), by pulling both ends of the attachment member 3 and lengthening the length of the part of the attachment member 3 exposed from the attachment member attachment part 12, the attachment member attachment part 12 is pulled and the diameter of the attachment member attachment part 12 becomes smaller.

As shown in FIG. 3, the diameter of the wind instrument auxiliary tool 1 (filter unit 2) before attachment is larger than the diameter of the bell part 21 of the trumpet 20 (wind instrument), and the center of the filter unit 2 is approximately aligned with the center of the bell part 21, and the filter unit 2 is folded back toward the mouthpiece 22. In other words, a circular fold-back part 13 is formed in the filter unit 2.

The mounting member attachment portion 12 is disposed on the outer conical curved surface 21a of the morning glory portion 21. Here, by pulling the mounting member 3, the mounting member 3 is moved relative to the mounting member attachment portion 12, and the mounting member attachment portion 12 is pulled and the diameter of the mounting member attachment portion 12 is narrowed. As a result, as shown in FIG. 3(b), the wind instrument auxiliary tool 1 is attached to the trumpet 20 (morning glory portion 21). The middle portion of the mounting member 3 is continuously covered by the mounting member attachment portion 12. Therefore, the filter unit 2 (both filter members 4, 5) is firmly attached around the entire circumference of the morning glory portion 21.

As shown in FIG. 3(b), the first filter member 4 and the second filter member 5 are folded back along the outer diameter of the opening 21b of the bell-shaped portion 21 of the trumpet 20, and the mounting member 3 tightens the mounting member attachment portion 12, reducing the diameter of the mounting member attachment portion 12. The wind instrument auxiliary tool 1 can be attached to the bell-shaped portion 21 of the trumpet 20 (wind instrument). At this time, the diameter of the mounting member attachment portion 12 is smaller than the diameter of the opening 21b of the bell-shaped portion 21. This prevents the wind instrument auxiliary tool 1 from coming off the opening 21b of the bell-shaped portion 21 to the front side (the side opposite the player).

Also, as shown in FIG. 3(b), the diameter of the opening 21b of the morning glory portion 21 is larger than the distance between the fixing portions 17a, 17b. In other words, by limiting the length of the slit 14a with the fixing portions 17a, 17b, it is possible to prevent the slit 14a from widening too much and causing the morning glory portion 21 (wind instrument auxiliary tool 1) to pass through the slit 14a and come off to the rear side (mouthpiece 22 side). The same applies to the slit 14b of the second filter member 5, the length of which is limited by the fixing portions 18a, 18b.

The mounting member 3 can be made of a ring-shaped elastic material such as rubber, or a metal spring with a one-turn shape (e.g., a C-shape).

As shown in Figures 3(a) and 3(b), the opening 21b of the bell-shaped portion 21 of the trumpet 20 is shielded by the breathable filter unit 2 of the wind instrument auxiliary tool 1. In other words, the opening 21b of the bell-shaped portion 21 is closed by the breathable filter unit 2. Therefore, when the player plays the trumpet 20, the playing sound dissipates from the bell-shaped portion 21 (opening 21b) side through the filter unit 2.

In addition, the player's breath that enters the trumpet 20 from the mouthpiece 22 moves toward the bell section 21 along with the mist of saliva contained in the breath, but only the breath passes through the filter unit 2, and the mist of saliva contained in the breath adheres to and is captured by the filter unit 2, and cannot move outside the bell section 21. Therefore, the player's saliva is prevented from scattering from the bell section 21 of the trumpet 20 when playing.

In other words, the player's breath can pass through the filter unit 2, and the filter unit 2 does not impede the passage of the breath. When the breath passes through the filter unit 2, the saliva droplets contained in the breath are captured by the filter unit 2. As a result, the saliva droplets of the player are prevented from scattering around.

Next, we will explain the case where a mute 15 (silencer) as shown in Figure 3 (b) is used to change the tone of the trumpet 20 or to reduce (suppress) the volume.

When attaching the mute 15 to the morning glory portion 21, as shown in Figures 1(b) and 4(a), the slit 14a of the first filter member 4 of the filter unit 2 is opened (an opening is formed in the opening forming portion), and then the slit 14b of the second filter member 5 is opened (an opening is formed in the opening forming portion) as shown in Figures 1(c) and 4(b), and the mute 15 is inserted into the morning glory portion 21, connecting the inside and outside of the morning glory portion 21.

If the mute 15 is small enough to fit inside the opening of the bellows portion 21, then closing the slit 14a (opening) of the first filter member 4 and the slit 14b (opening) of the second filter member 5 will again seal off the inside and outside of the bellows portion 21 with the wind instrument auxiliary tool 1, preventing droplets of the player's saliva from being released outside the trumpet 20. However, there are many different types of mutes 15, and many of them protrude outside the opening of the bellows portion 21 when attached to the bellows portion 21.

However, with the wind instrument auxiliary tool 1 according to this embodiment, even if the mute 15 protrudes from the morning glory portion 21, the gap (opening) that occurs in the slit 14a of the first filter member 4 is blocked by the second filter member 5. Also, the gap (opening) that occurs in the slit 14b of the second filter member 5 is blocked by the first filter member 4. In this way, the two filter members 4 and 5 eliminate the gap (opening) that occurs between the other side and the mute 15, and complement each other. In other words, the opening area of the slits 14a and 14b (opening forming portion) is reduced.

When the wind instrument is a horn, the player places his/her hands on the bell section 21 to play. Even in this case, the player can insert his/her hands into the bell section 21 through the slits 14a, 14b, and both filter members 4, 5 eliminate the gap between the other and the player's hand, complementing each other.

Next, when the mute 15 is removed from the morning glory portion 21, the wind instrument auxiliary device 1 is in the state shown in Figure 8 (b). That is, as shown in Figure 8 (a), the edges (reinforcement pieces 10a, 10b, 11a, 11b) of the slits 14a, 14b of each filter member 4, 5 are plastically deformed, and the slits 14a, 14b do not return to the straight shape (the state shown in Figure 3 (b)) they had before the mute 15 was attached to the morning glory portion 21, and openings 35a, 35b are created.

However, in the wind instrument auxiliary tool 1 according to this embodiment, as shown in FIG. 8(b), the slits 14a, 14b intersect, so that each filter member 4, 5 partially covers the openings 35a, 35b that are formed on the other side. As a result, the opening 36 formed in the wind instrument auxiliary tool 1 is small (narrow in area).

Here, the reinforcing pieces 10a, 10b, 11a, and 11b may be provided with an elastic member, or the reinforcing pieces 10a, 10b, 11a, and 11b themselves may be made of an elastic member. In this case, even if the slits 14a and 14b are expanded against the biasing force of the elastic member and the mute 15 or the player's hand is inserted into the inside of the morning glory portion 21, the reinforcing pieces 10a, 10b, 11a, and 11b are less likely to undergo plastic deformation. Therefore, when the mute 15 is removed from the morning glory portion 21, each of the slits 14a and 14b returns to its original shape, and the opening area of each of the slits 14a and 14b decreases. As a result, in the wind instrument auxiliary tool 1, a gap smaller than the opening 36 shown in FIG. 8(b) is formed, or there is no gap at all. Therefore, most of the splashes (splashes) of saliva contained in the player's breath are blocked by each of the filter members 4 and 5.

In the wind instrument auxiliary tool 1 of this embodiment, when the wind instrument auxiliary tool 1 is attached to the bell section 21 of the trumpet 20, if the slits 14a, 14b of each filter member 4, 5 exceed the diameter of the bell section 21, fixing parts 17a, 17b, 18a, 18b (Fig. 1(a)) are provided in the slits 14a, 14b. The distance between the fixing parts 17a, 17b is smaller than the diameter of the opening 21b of the bell section 21, but is large enough to allow the mute 15 and the player's hand to be inserted. Similarly, the distance between the fixing parts 18a, 18b is smaller than the diameter of the opening 21b of the bell section 21, and is large enough to allow the mute 15 and the player's hand to be inserted.

In addition, according to the wind instrument auxiliary tool 1 of this embodiment, the filter members 4 and 5 of the filter unit 2 are provided with slits 14a and 14b, so the player can easily attach and detach the mute 15 to the morning glory portion 21.

Next, we will explain another embodiment of the wind instrument auxiliary tool 25 with reference to Figure 5.

The wind instrument auxiliary tool 25 has a filter member 26 and an attachment member 27 .
As shown in Fig. 5(a), the filter member 26 is provided in place of the first filter member 4 and the second filter member 5 in the filter unit 2 of the wind instrument auxiliary tool 1 shown in Fig. 1. In other words, the wind instrument auxiliary tool 25 has one filter member 26.

As shown in FIG. 5(b), the filter member 26 has a first piece 26a and a second piece 26b that are split in half, similar to the first piece 4a and the second piece 4b of the first filter member 4 in FIG. 1. Reinforcing pieces 23a and 23b are provided on the diameter portions of the first piece 26a and the second piece 26b, respectively. The reinforcing pieces 23a and 23b may be provided with an elastic member, or the reinforcing pieces 23a and 23b may be made of an elastic member.

The first piece 26a and the second piece 26b are in close contact with the reinforcing pieces 23a, 23b facing each other, and a slit 29 is formed between the reinforcing pieces 23a, 23b. Fixing parts 31a, 31b, which are sewn, are provided near both ends of the slit 29. In other words, the length of the slit 29 is limited by the fixing parts 31a, 31b. The distance between the fixing parts 31a, 31b is smaller than the diameter of the opening 21b of the morning glory part 21 of the trumpet 20, and is large enough to allow the mute 15 or the player's hand to be inserted.

The filter member 26 has a circular outer shape. The outer periphery of the circle is provided with an attachment member mounting portion 28, which is an annular space. At both ends of the attachment member mounting portion 28, there are openings, 28a and 28b. A string-like attachment member 27 is housed in the attachment member mounting portion 28. In other words, the string-like attachment member 27 passes through the attachment member mounting portion 28 in the circumferential direction. The length of the attachment member 27 is longer than that of the attachment member mounting portion 28.

As shown in FIG. 5(a), the filter member 26 is folded back along a circle 30 indicated by a virtual line (two-dot chain line) that coincides with the outer diameter of the opening of the morning glory portion 21 of the trumpet 20, and the mounting member attachment portion 28 is pulled by the mounting member 27 to reduce the diameter of the mounting member attachment portion 28. This allows the wind instrument auxiliary tool 25 to be attached to the morning glory portion 21 of the trumpet 20 (wind instrument) as shown in FIG. 5(c). At this time, the diameter of the mounting member attachment portion 28 is smaller than the diameter of the opening 21b of the morning glory portion 21 of the wind instrument auxiliary tool 25. Therefore, it is possible to prevent the wind instrument auxiliary tool 25 from coming off the opening 21b of the morning glory portion 21 to the front side (the opposite side to the player).

Also, as shown in FIG. 5(a), the diameter of the circle 30 (opening 21b of the morning glory portion 21) is larger than the distance between the fixing parts 31a, 31b. In other words, by providing the fixing parts 31a, 31b, it is possible to prevent the slit 29 from widening too much, causing the wind instrument auxiliary tool 25 to come off backward (towards the player) from the opening 21b.

When using the mute 15 (Figure 6(a)), the opening area of the slit 29 (opening forming portion) can be expanded to insert the mute 15 into the morning glory portion 21, as shown in Figure 6(b).

Here, if the reinforcing pieces 23a, 23b are provided with an elastic member or are themselves made of an elastic material, the opening area of the slit 29 will expand against the elastic force, and even if the mute 15 or the player's hand is inserted into the bellows section 21, the reinforcing pieces 23a, 23b will tend to return to their original position (the position in which the slit 29 is closed), and the edges of the slit 29 will not easily undergo plastic deformation. Therefore, when the mute 15 is removed or the player's hand is removed from the bellows section 21, the slit 29 will easily return to its original straight shape so that the opening area decreases.

A method for eliminating the gap 24 shown in FIG.
As shown in Figures 7(a) and 7(b), wind instrument auxiliary tools 25a and 25b having the same structure as the wind instrument auxiliary tool 25 shown in Figure 5 are used. That is, in addition to the wind instrument auxiliary tool 25a that is the same as the wind instrument auxiliary tool 25 in Figure 5, another wind instrument auxiliary tool 25b having the same structure as the wind instrument auxiliary tool 25 in Figure 5 is used in layers. The wind instrument auxiliary tool 25a has a filter member 26A with a slit 29A, and the wind instrument auxiliary tool 25b has a filter member 26B with a slit 29B.

As shown in FIG. 7(c), the mute 15 is inserted into the morning glory portion 21 through the slit 29A of the wind instrument auxiliary tool 25a and the slit 29B of the wind instrument auxiliary tool 25b. The gap 24a created in the wind instrument auxiliary tool 25a is blocked by the filter member 26B of the wind instrument auxiliary tool 25b. Also, the gap 24b created by the wind instrument auxiliary tool 25b is blocked by the filter member 26A of the wind instrument auxiliary tool 25a.

In this way, the wind instrument auxiliary devices 25a, 25b complement each other, eliminating the gaps 24a, 24b. Furthermore, the gap that is formed when the mute 15 is removed from the morning glory portion 21 is small (narrow in area) like the opening 36 shown in FIG. 8(b) described in the previous embodiment. Therefore, most of the saliva droplets contained in the player's breath are blocked by the filter members 26A, 26B.

The embodiment shown in Figures 1 to 4 and the embodiment shown in Figure 7 describes the case where two filter members are used, while the embodiment shown in Figures 5 and 6 describes the case where one filter member is used.

The wind instrument auxiliary of the present invention may use three or more filter members. When three or more filters are used, it is preferable that the slits (openings) of at least one of the filters intersect with the slits (openings) of the other filters, and it is most preferable that the slits (openings) of all of the filters intersect at equal angular intervals.

Next, a wind instrument auxiliary tool 40 according to another embodiment will be described with reference to Figures 10 to 14. As shown in Figures 10 to 12, the wind instrument auxiliary tool 40 has a filter unit 41, an annular fixing member 42, and an attachment member 43.

As shown in FIG. 12, the filter unit 41 has filter members 41a and 41b. The filter members 41a and 41b are made of a material that is breathable, such as gauze or nonwoven fabric, and can prevent the passage of droplets of liquid (mist liquid). In other words, a person's breath can pass through the filter members 41a and 41b, and droplets of saliva contained in the breath are captured by the filter members 41a and 41b.

The filter member 41a has an outer shape consisting of a circular arc-shaped circumferential portion 44a with a central angle exceeding 180 degrees (e.g., 190 degrees to 240 degrees) and a concave curved portion 45a that is recessed toward the inside of the circle. Both ends 48a, 49a of the filter member 41a where the circular arc portion 44a and the concave curved portion 45a are connected protrude.

A reinforcing piece 46a (reinforcing member) is attached to the concave curved portion 45a. The reinforcing piece 46a has a generally V-shaped cross section and is a member that extends along the concave curved portion 45a. In other words, the reinforcing piece 46a has a shape in which the inner peripheral sides of two elongated curved flat members are integrated together.

The reinforcing piece 46a sandwiches the edge of the concave curved portion 45a of the filter member 41a and is integrated with the filter member 41a by sewing, gluing, or the like. The reinforcing piece 46a is made of a material that can be elastically deformed. In other words, the concave curved portion 45a of the filter member 41a to which the reinforcing piece 46a is integrated can return to its original shape even if it is deformed by the action of an external force.

On the other hand, filter member 41b has a structure similar to that of filter member 41a, and a reinforcing piece 46b is provided on the concave curved portion 45b of filter member 41b.

As shown in FIG. 11, the concave curved portion 45a (reinforcement piece 46a) of the filter member 41a and the concave curved portion 45b (reinforcement piece 46b) of the filter member 41b are configured to intersect without gaps when the centers of the circumferential portion 44a of the filter member 41a and the circumferential portion 44b of the filter member 41b are aligned.

When the centers of the circumferential portions 44a and 44b are aligned, the ends 48a and 49a of the filter member 41a protrude toward the filter member 41b, and similarly, the ends 48b and 49b of the filter member 41b protrude toward the filter member 41a. Therefore, the ends 48a and 49a of the filter member 41a and the ends 48b and 49b of the filter member 41b overlap.

The protruding ends 48a, 48b of the filter members 41a, 41b and the protruding ends 49a, 49b of the filter members 41a, 41b are inverted in position relative to the front and back of the paper in FIG. 11.

As shown in FIG. 10, the inner periphery of the annular fixing member 42 (described later) is integrated with the filter members 41a and 41b (circumferential portions 44a and 44b) by sewing. Therefore, there is no gap between the annular fixing member 42 and the filter members 41a and 41b.

The concavely curved portions 45a, 45b (reinforcing pieces 46a, 46b) of the filter members 41a, 41b are arranged to intersect with each other.
Specifically, in Figures 10 and 11, one end 48a of filter member 41a is positioned closer to the front of the paper than one end 48b of filter member 41b, and the other end 49a of filter member 41a is positioned closer to the back of the paper than the other end 49b of filter member 41b.

That is, as shown in Figures 10 and 11, the concave curved portions 45a, 45b (reinforcement pieces 46a, 46b) are closely intersecting with no gaps. That is, the filter members 41a, 41b have their front and back sides switched in the area (region) midway from one end 48a, 48b to the other end 49a, 49b.

The annular fixing member 42 shown in FIG. 12 is composed of two thin annular members made of a material that allows deformation, such as gauze or cloth. A sewn portion 39a is provided on the outer periphery of the annular fixing member 42, and a sewn portion 39b is provided on the inner periphery. An internal space 42c is formed between the sewn portions 39a and 39b. The internal space 42c has inlet and outlet portions 42a and 42b.

A string-like attachment member 43 is inserted into the internal space 42c. The length of the attachment member 43 is longer than the length of the internal space 42c. In other words, when the attachment member 43 is placed in the internal space 42c, both ends of the attachment member 43 can be exposed from the entrance and exit portions 42a and 42b, as shown in FIG. 10.

As shown in FIG. 10, the wind instrument auxiliary tool 40 has a circular folded portion 47. The folded portion 47 is provided on the filter members 41a and 41b on the inner circumferential side of the annular fixing member 42. The folded portion 47 matches the outer diameter of the opening of the morning glory of the wind instrument.

In the wind instrument auxiliary device 40, in the state shown in FIG. 10, no gap (hole) is formed between the filter members 41a, 41b, but when the elastically deformable reinforcing pieces 46a, 46b are pressed in the directions away from each other as shown by the arrows 51a, 51b in FIG. 13, a hole 50 is formed between the filter members 41a, 41b. When the external force in the directions shown by the arrows 51a, 51b is removed, the filter members 41a, 41b (reinforcing pieces 46a, 46b) return to the original state shown in FIG. 10, and the hole 50 closes.

The wind instrument auxiliary tool 40 described above can be attached to the bell portion 52a (bell) of a wind instrument 52, as shown in FIG. 14. The folded portion 47 of the wind instrument auxiliary tool 40 matches the opening edge of the bell portion 52a, and the annular fixing member 42 is positioned behind the bell portion 52a. The mounting member 43 is then squeezed and tightly tied to attach the wind instrument auxiliary tool 40 to the bell portion 52a.

As a result, each filter member 41a, 41b of the filter unit 41 of the wind instrument auxiliary tool 40 is positioned across the entire area of the opening of the morning glory portion 52a. In other words, each filter member 41a, 41b covers a part of the opening of the morning glory portion 52a, and the entire area of the opening of the morning glory portion 52a is closed by at least one of the filter members 41a, 41b.

When the filter unit 41 closes the opening of the morning glory portion 52a, for example, the end 48a of the filter member 41a and the end 49b of the filter member 41b are arranged on the side closer to the opening of the morning glory portion 52a, and the end 49a of the filter member 41a and the end 48b of the filter member 41b are arranged on the side farther from the opening of the morning glory portion 52a.

When using the mute 53, the filter members 41a and 41b are deformed, and the mute 53 can be attached to the morning glory portion 52a of the wind instrument 52 through the hole 50 formed between them. As shown in FIG. 14, the mute 53 attached to the wind instrument 52 passes through the hole 50 and is exposed to the outside of the wind instrument auxiliary tool 40.

The reinforcing pieces 46a, 46b of the filter members 41a, 41b have a restoring force that causes them to return to their original closed state, so the gap between the filter members 41a, 41b does not widen. In addition, the restoring force of the reinforcing pieces 46a, 46b causes the filter members 41a, 41b to adhere closely to the periphery of the mute 53. Therefore, gaps are unlikely to form between the filter members 41a, 41b and the mute 53.

Therefore, most of the breath of the player passes through the filter unit 41 (filter members 41a, 41b), and most of the saliva droplets are captured by the filter members 41a, 41b. This effectively prevents saliva droplets contained in the breath of the player from scattering around.

Next, another embodiment of the filter unit 41 will be described with reference to Figures 15 and 16.

Figures 15(a) to 15(c) show the filter unit 61 of the wind instrument auxiliary tool 60. The wind instrument auxiliary tool 60 has a structure in which an annular fixing member having the same structure as the annular fixing member 42 shown in Figure 12 is fixed around the filter unit 61. Note that the annular fixing member is not shown in Figures 15(a) to 15(c).

As shown in FIG. 15(a), the filter unit 61 has three filter members 61a to 61c. Each filter member 61a to 61c has a semicircular outer shape, with reinforcing pieces 62a to 62c attached to the straight line portions. The reinforcing pieces 62a to 62c have a structure similar to the reinforcing pieces 10a and 10b shown in FIG. 2(d). That is, the reinforcing pieces 62a to 62c are linear members with a V-shaped cross section. Furthermore, the reinforcing pieces 62a to 62c are made of an elastic material and have a restoring force.

As shown in FIG. 15(b), the centers of the filter members 61a to 61c are aligned with the center 64 of the filter unit 61, and are assembled with an angle of 120 degrees between them. In other words, the areas of the central angle of 60 degrees of each filter member 61a to 61c overlap with the adjacent filter members on both sides.

As shown in FIG. 15(b), filter member 61a is disposed closer to the front of filter member 61b and farther back from filter member 61c. Filter member 61b is disposed closer to the front of filter member 61c. That is, one end of each of filter members 61a to 61c is disposed on the front side of the paper, and the other end is disposed on the far side of the paper.

Although not shown, an annular fixing member 42 as shown in Figs. 11 and 12 is attached to the outer periphery of the filter unit 61 to form the wind instrument auxiliary tool 60. Then, as shown in Fig. 14, the folded portion 63 of the filter unit 61 is aligned with the bell portion 52a of the wind instrument 52, and the filter unit 61 is attached to the bell portion 52a. Fig. 15(b) is a front view of the filter unit 61 attached to the bell portion 52a.

As a result, each filter member 61a to 61c of the filter unit 61 is positioned across the entire area of the opening of the morning glory portion 52a. In other words, each filter member 61a to 61c covers a part of the opening of the morning glory portion 52a, and the entire area of the opening is closed by at least one of the filter members 61a to 61c.

As shown in FIG. 15(b), the filter members 61a-61c (reinforcement pieces 62a-62c) intersect with each other, and the center 64 of the filter unit 61 is closed. That is, in the state shown in FIG. 15(b), the front and back sides of the paper surface of the filter unit 61 are shielded. When the filter unit 61 closes the opening of the morning glory portion 52a, a part of the filter members 61a-61c is arranged on the side closer to the opening of the morning glory portion 52a, and another part of the filter members 61a-61c is arranged on the side farther from the opening of the morning glory portion 52a.

Also, as shown in FIG. 15(c), the reinforcing pieces 62a to 62c can be deformed to expand the center 64 and form a hole 65. The mute 66 can then be attached to the wind instrument 52 through the hole 65 in the filter unit 61.

The gaps formed between each filter member 61a-61c and the mute 66 are extremely small. As a result, very little of the player's breath escapes from the wind instrument to the outside through these gaps, and the scattering of saliva droplets contained in the breath to the surrounding area is effectively suppressed.

Constructing each filter member 61a-61c in this way makes it easier to process the filter unit 61. That is, the outer shape of each filter member 61a-61c is semicircular, making them easy to process. In addition, the reinforcing pieces 62a-62c can be constructed in a straight line, making them extremely easy to manufacture.

Figures 16(a) to 16(c) show the filter unit 71 of the wind instrument auxiliary tool 70. The wind instrument auxiliary tool 70 has a structure in which an annular fixing member having the same structure as the annular fixing member 42 shown in Figure 12 is fixed around the filter unit 71. Note that the annular fixing member is not shown in Figures 16(a) to 16(c).

As shown in FIG. 16(a), the filter unit 71 has four filter members 71a to 71d. That is, the filter unit 71 has four filter members similar to those of the filter unit 61 shown in FIG. 15. The centers of the four filter members 71a to 71d are aligned with the center 74 of the filter unit 71, and are combined with an angle of 90 degrees each. That is, the area of the central angle of 90 degrees of each filter member 71a to 71d overlaps with the adjacent filter members on both sides.

Filter member 71a is disposed closer to the front of filter member 71b and farther back on the paper than filter member 71d. Filter member 71b is disposed closer to the front of filter member 71c. Filter member 71c is disposed closer to the front of filter member 71d.

Although not shown, the outer periphery of the filter unit 71 is attached with an annular fixing member 42 as shown in Figs. 11 and 12 to form the wind instrument auxiliary tool 70. Then, as shown in Fig. 16(b), the folded portion 73 of the filter unit 71 is aligned with the bell portion 52a of the wind instrument 52 as shown in Fig. 14, and the wind instrument auxiliary tool 70 is attached to the wind instrument 52.

As a result, each filter member 71a to 71d of the filter unit 71 is positioned across the entire area of the opening of the morning glory portion 52a. In other words, each filter member 71a to 71d covers a part of the opening of the morning glory portion 52a. And the entire area of the opening of the morning glory portion 52a is closed by at least one of the filter members 71a to 71d.

As shown in FIG. 16(b), the filter members 71a-71d (reinforcement pieces 72a-72d) intersect with each other, and the center 74 of the filter unit 71 is closed. That is, in the state shown in FIG. 16(b), the front and back sides of the paper surface of the filter unit 71 are shielded. When the filter unit 71 closes the opening of the morning glory portion 52a, a part of each of the filter members 71a-71d is disposed on the side closer to the opening, and another part of each of the filter members 71a-71d is disposed on the side farther from the opening.

Also, as shown in FIG. 16(c), the reinforcing pieces 72a to 72d can be deformed to expand the center 64 and form a hole 75. The mute 76 can then be attached to the wind instrument 52 through the hole 75 in the filter unit 71.

The gaps formed between each filter member 71a-71d and the mute 76 are extremely small. As a result, very little of the player's breath escapes from the wind instrument to the outside through these gaps, and the scattering of saliva droplets contained in the breath to the surrounding area is effectively suppressed.

Although Figures 15 and 16 disclose a filter unit having three or four filter members, the filter unit may have five or more filter members.

1 Wind instrument auxiliary tool 3 Mounting member 4, 5 Filter member 10a, 10b Reinforcement piece 11a, 11b Reinforcement piece 12 Mounting member attachment portion 14a, 14b Slit (opening forming portion)
17a, 17b: fixed portion of slit 14a 18a, 18b: fixed portion of slit 14b 20: trumpet (wind instrument)
21 Morning glory portion 21b Morning glory portion opening 26 Filter member 27 Mounting member 28 Mounting member mounting portion 29 Slit (opening forming portion)
31a, 31b Fixed portion 40 of slit 29 Wind instrument auxiliary tool 41a, 41b Filter member 48a, 49b Part 48b, 49a arranged on the side of the filter member closer to the opening of the morning glory part of the filter member Part 60 arranged on the side farther from the opening of the morning glory part of the filter member Wind instrument auxiliary tool 61a to 61c Filter member 70 Wind instrument auxiliary tool 71a to 71d Filter member

Claims (8)

A wind instrument auxiliary tool for a wind instrument having a bell-shaped part,
A filter member is provided in an opening of a bosom of the wind instrument,
The filter member has breathability and can reduce the passage of scattered saliva,
The filter member is provided with a slit or a joint through which a mute or a player's hand can be inserted . The filter includes at least two of the filter members,
2. The auxiliary tool for a wind instrument according to claim 1, wherein the slits or seams of each of the filter members intersect with each other. The wind instrument auxiliary tool according to claim 1 or 2, characterized in that it has a reinforcing member that reinforces the edge of the slit or the edge of the seam. The wind instrument auxiliary tool according to any one of claims 1 to 3, characterized in that it has a fixing part that limits the length of the slit or seam to be smaller than the diameter of the opening of the morning glory part. Further comprising a mounting member,
The attachment member is a string-like member,
a mounting member mounting portion through which the mounting member is inserted in a circumferential direction is provided on a peripheral edge portion of the filter member,
5. The wind instrument auxiliary tool according to claim 1, wherein the mounting member and the mounting member attachment portion are movable relative to each other, and both ends of the mounting member are exposed from the mounting member attachment portion. The wind instrument auxiliary tool according to claim 5, characterized in that the mounting member attachment portion continuously covers the periphery of the mounting member. A wind instrument auxiliary tool for a wind instrument having a bell-shaped part,
A filter member is provided in an opening of a bosom of the wind instrument,
The filter member has breathability and can reduce the passage of scattered saliva,
The filter member has an opening forming portion that can be opened, into which a mute or the player's hand can be inserted , and the opening area of the opening forming portion is changeable. A wind instrument auxiliary tool for a wind instrument having a bell-shaped part,
A plurality of filter members are arranged in the openings of the morning glory portion of the wind instrument,
Each of the filter members has breathability and can reduce the passage of scattered saliva,
Each of the filter members closes a part of the opening of the morning glory portion, and any of the filter members is disposed in the entire area of the opening,
The filter member has a portion that is arranged closer to the opening than other filter members, and a portion that is arranged farther from the opening.

Images