JPS62501522A - wind instruments - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] pipe instrument This invention relates to a wind instrument equipped with keys for changing sounds. The hole that determines the height of can be selectively closed. Inside this key is a closed special Attach a tampon that fits tightly to the edge of the large, but this is done by pouring synthetic resin paste and solidifying it. It is then processed into a soft and elastic resin. These wind instruments include flutes, Applicable to saxophone, clarinet, oboe, bassoon, bassoon, etc. .

Usually, the tambo of these wind instruments is made of felt with a thin membrane of intestinal material attached. However, attaching this type of button to the key requires considerable expertise and skill. and the work is very tedious. The reason for this is that the edges of the holes in wind instruments are not evenly flat. The key is located off-center, and the bottom of the key is partially uneven. That's a thing. However, for perfect musical function of an instrument, complete sealing with keys is necessary. is necessary. In order to meet this requirement, the bottom of the key has been flattened in advance. After that, place a thin sheet such as paper between the button and the bottom of the key, and press the contact part of the button. The method used was to match the shape of the edge of the hole. This work is extremely tedious and delicate. It is clear that a certain sense is required. With this technology, installing the tank button is difficult. It takes time. Additionally, these pads have a relatively short service life and are frequently If played, it must be replaced with a new one approximately every one or two years.

In addition, a prefabricated elastic plastic tank button (UP-PS4114500) is also available. The aforementioned problems arising from uneven edges of the hole cannot be solved.

In a further alternative, as mentioned in the introduction, plastics in liquid or base I. Stuff it inside the key and press the edge of the hole into the plastic. In this case, the key Problems arise with the shape of the synthetic resin formed inside the case and the position of the key when it is closed. this The position of the key is also not fixed sufficiently when hole 8 (is pressed into the synthetic resin). It is. However, the shape of the trumpet button affects the tone of the instrument, and the shape of the key when closed. The position affects the characteristics of the instrument.

The purpose of this invention is to completely satisfy the requirements of sound and performance technology by the method mentioned at the beginning. The purpose of the present invention is to make it possible to seal a key that can be filled with the same conditions with a simple operation. or, Wind instruments with regular buttons can also be modified to new specifications with this invention. It is.

The feature of the invention at the beginning is that the key filled with resin is supported in the closed position. It is a point.

The edge of the hole is pressed into the resin, and after the resin solidifies, the support supporting the key is removed. Remove.

By this method the aforementioned objectives are largely avoided. Easy to use, keys are accurate The holes in the instrument are sealed to ensure that the keys remain in a stable and stable position. .

This brings great benefits when playing musical instruments.

Silicone rubber is the most suitable synthetic resin material.

This is because it maintains stable elasticity for a long period of time. Also, other resins that harden It is also possible to use urethane elastic resin or the like.

In this case, it is most preferable to use a resin that hardens at ambient temperature. curing of resin This is because there is no need to make any changes. However, it freezes at a temperature higher than the ambient temperature. Heat the key and/or the hole in the instrument using resin that is heated with the key closing the hole. You can also. Hot air can be used for this heating.

When the key is closed, use a simple method to flatten the part of the button that is inside the edge of the hole. One preferred method to facilitate the formation of a hole is to This involves putting stuffing inside. This filling should be placed near the edge of the hole. The minutes are set back from the Ennichi body. At this time, place a filler with an outlet in the hole. It is preferable to

This outlet allows excess pressure to escape when the key is closed and the edge of the hole is shaped. . From the perspective of the process of forming the tank, the resin paste used to make the tank does not cover the holes. It is a good idea to pour more volume than the volume enclosed by the hole containing the key and the stuffing.

To form a neat edge of the button, make sure that the side of the key that goes through the green part still touches the side that goes through the edge of the hole. Support the key in a secure position.

At the same time, when the key is closed, a frame surrounds the green hole, fits tightly to the edge of the key, and supports it. Attach. This frame is attached to the outside edge of the hole or to the key when the key is open. and removed again after the resin paste has hardened.

Another method of the invention mentioned at the beginning is to attach a small disc inside the key. It is something that can be done. The surface of this disc is covered with an elastic cover. This card The material of the bar is elastic resin, rubber film, thin and stretchy cloth, fibrous tissue, Alternatively, intestinal membranes, etc. may be considered. Before or after this disk is installed in the key, The space between the board and the membrane covering it is filled with a resin paste that hardens into an elastic resin. . The paste is then allowed to harden with the key closing the hole. Even with this method Also, the object underlying the invention as described above is achieved.

The hardening resin between the disk and the coating that covers it is keyed together with the elastic coating. This provides effective support when closed, and the edges of the hole are neatly shaped.

In many cases, the thinner the film, such as 0.11- or less, the more elastic the resin. It easily adapts to the shape of the hole edge while solidifying into a cushion-like shape, and requires less pressure. The key closes correctly. Therefore, a synthetic rubber film with a thickness of about 0.005+n is suitable. ing. However, if the material has sufficient elasticity, it can be thicker, about 0.4111. It is also possible to use

Possible types of elastic fabrics include polyamide, human silk, or natural silk fabrics. It will be done. These cloths are placed so that they fit smoothly against the edges of the hole that will be closed with the key. Waterproof the surface.

Again, silicone rubber is the most suitable resin paste that solidifies into an elastic resin. Other polyurethane or sufficiently flexible PvC pastes may also be used.

For better key movement and sealing when playing the instrument, use an elastic cushion system. A share hardness of between 20 and 50 is suitable. The hardness of the disc is higher than orchid. Also, the thickness of the elastic resin cushion around the disk Make it as uniform as possible. At that time, a ring-shaped groove is formed on the disc along the shape of the edge of the hole. It is effective if it is engraved. This groove is filled with elastic resin paste; Paste does not build up in the ring and spill out from the sides due to the groove walls.

Therefore, in any case, the resin paste is pushed away when shaping the edges of the hole. A uniform seal is created at the edges without any smearing.

The feature of this simple processing method is that an elastic film is pasted on the front or side of the disc, or After welding, pour liquid or paste resin over the membrane into the space between the membrane and the disc. It means entering. At this time, the resin, which hardens at ambient temperature, is It is suitable because it does not require any additional work.

However, it is also possible to use resins that begin to harden due to radiant heat. circle in key After installing the plate, radiate heat to the inside of the key in the open shape bear, and then place the key over the hole. Place the resin on the plate and solidify the resin. The advantage of this method is that resin is injected between the film and the disc. This means that parts can be manufactured in advance. Installing a new button on the instrument key If the resin is injected in liquid or paste form, the only work required is to After that, all you have to do is attach a disc cushion filled with resin into the key. tree The property of fats is that they begin to harden when heat is radiated, and then continue the hardening process on their own. It is better to have In some cases, this curing process may be assisted by mild heating. You can also In addition, the resin has the characteristic of continuing to harden only at temperatures higher than the ambient temperature. It may also be used to heat the key and/or the hole part of the instrument after the key is placed over the hole. It can also be cured. Such heating is performed, for example, by hot air. child In this case, the tank filled with liquid or paste resin is stored in a refrigerator or at ambient temperature. It can be made to have properties that allow it to be stored for a relatively long period of time.

The disc used in the invented manufacturing method is also the subject of the invention. Its characteristics As a sign, the disk is made of elastic resin or rubber, and the front side is made of soft resin or rubber. covered with rubber or thin stretchy cloth, fibrous tissue, or intestinal membrane. this skin The membrane is affixed or welded to the front edge and/or sideways and/or rear side of the disc.

Another unique advantage is that the space between the disc and the membrane is filled with warm air that does not change at ambient temperature. Alternatively, liquid paste that has the property of curing under the influence of radiation is a paste-like resin. It is injected and can be made into a hub.

This invention also covers wind instruments that can change the sound by selectively closing holes using keys. The second feature is that the key has a button that sticks to the edge of the hole when the key is closed. A button is attached, which is formed by a disk covered with an elastic membrane. has been done. In this invention, the resin injected under the stretchable membrane hardens as it is. This will form a cushion-like green hole in the hole that should be closed, so that the key will accurately close the hole. Can be closed.

The invention will be explained in more detail using some diagrammatic examples.

A cross-sectional view of a wind instrument manufactured by the method invented in Fig. Figure 22 Front and cross-sectional views of a wind instrument corresponding to Figure 1 showing the first step of the invented method Figure 3 = shows the second stage of the method in a cross-sectional view corresponding to Figure 2;

Figure 4: Cross-sectional view of the part of the hole that is closed by a flute or saxophone key. of the key A disk covered with an elastic membrane is fitted inside, and elastic resin is injected under the membrane. It is.

Figure 5 (-Figure 6: Cross-sectional view of a disc-shaped tank that has not yet been injected with resin) Figure 7 + Figure 8: Cross-sectional view showing resin injection Figure 9: Cross section of the key variant shown in Figure 4 Figure 10 = Flute or Saxophone cross section of a small hole that can be closed with a small key Figure 11: For woodwind instruments such as clarinet, oboe, bassoon or piccolo Figure 12 Cross-sectional view of the hole closed with the key Figure 12 Cross-sectional view of the key modification shown in Figure 4 Figure 1 1 shows a cross section of a hole in a wind instrument (1) that is closed with a key. Pipe (2 ) each hole attached to the pipe (2) protrudes from the pipe (2) in the form of a chimney or is soldered It is surrounded by a frame (4). Wind instruments have multiple holes (3) like this, and the key selectively closes by -, allowing for mutated sounds. The key (6) that closes this hole (3) is equipped with a resilient, disc-shaped button (7), which opens the hole (3) when the key is closed. Close contact with the edge (6). This button (7) is elastic with a Shore hardness of 20 to 30. made from resin. Silicone rubber is the most suitable material for the button (7). There is. The surface (11) of the button (7) is the part (10) above the hole (3) to be plugged. It has a flat structure, and when the key (6) is closed, the edge of the hole (3) ( 5) is located slightly below. This is advantageous for the sound quality of the instrument.

The button (7) is made of resin that hardens in its natural state, so the hole ( Make sure that the tang button is in close contact with the entire edge (5) of tube (2), and that the joint (9) attached to tube (2) ) When the key (6) that rotates opens, the key (6) or button (7) will be released from the edge (5). When the key is lifted up and closed, the key rests on the entire edge (5).

The invented method uses a box filled with a flexible plastic tank that hardens on the spot. In the production of the above-mentioned musical instruments with In the space between the edge of the hole covered by the soft resin Z and the hardening resin liquid or paste, When the yeast is being filled, the key must be closed in the same position as it will be in the final product. He is held in that position. During this time, the resin will harden and the support will then be removed. be done. The support for the key is around or around the hole (3) as shown in Figure 2. Attach a plastic material (14) around the frame (4) and provide suitable support on top of the plastic material (14). place

This support supports the key (6) precisely in the closed position. As a plastic material, For example, wax or putty are suitable. The support for the key (6) is made of plastic material ( Place the support disc (15) on top of 14), attach the support frame on top of it, and It is best to place the key (6) on it. In this way, the support disk (15) and the support The space between the key (6) and the edge (6) of the hole (3) is shielded from the outside by the frame (16). Cut off. This is filled with resin that will form the tank.

In order to limit this space also in the part of the hole (3), To make the surface of the pad flat, press the key (6) as shown in Figure 2. Place the stuffing (17) in the hole (3) to be closed and fill the hole (3) with plastic material (18). ). The position of the filling (17) is slightly above it (20), for example. For example, fix it so that it is set back about one angle from the edge (5) of the hole. Similarly, support disk (1 5) When placed on the plastic material (14), the surface (21) may be slightly distorted, for example. Fix it so that it is set back about 11 points from the edge of the hole (5). Support disc (15) and The ring-shaped frame (16) is attached with adhesive, etc., and the key (6) can be easily attached to the button. It would be good to make it easier to create.

The ring-shaped frame (16) is an extension of the key edge (22) when the key (6) is closed. When the key is closed in the direction of the arrow (23), The plastic material (14) is deformed and the frame (16) is completely connected to the key (6) or its edge (22). contact everything.

This allows the key (6) to have a surface that passes through the edge (22) of the key pass through the edge (5) of the hole (3). supported in a position that does not yet touch the surface. In other words, it is supported at a position slightly above the edge (5). You can get it.

Then the key (6) is opened again and the inside of the key (6) or the stuffing (17) The area surrounded by the ring-shaped frame (16) is filled with resin (24) that forms the pad. It will be done. Then the key (6) is closed again and is now blocked by the key (6) The edge (5) of the hole (3) is pressed into the resin (24) or this edge is pressed into the resin (24). 4). This process is illustrated in FIG.

Thereafter, the resin is cured to form pads. Resin volume to be poured into the tank (7) The volume is surrounded by a key (6) in the closed position and a hole (3) filled with padding (17). Estimate more than the actual capacity. Thereby, this space, especially the edge (5) of the hole (3) The surrounding area is completely filled. At that time, the support disc (15) or the stuffing (17) Excess pressure causing displacement is released through holes (25) in the padding.

After the tank is formed by solidification of the resin, the key is opened ( ) and the key is inserted through the hole (3). The object (17) was removed, as was the support disc (15) and the plastic material (14). It will be done. If the ring-shaped frame (16) is not sufficiently fixed to the support disk (15), The frame remains attached to the edge of the button (7) when the key is opened, but is not removed afterwards. It's fine if you do. The ring-shaped frame (16) neatly shapes the edge of the button, making it easy to add finishing touches. No additional processing is required.

When the key is opened, the rod-shaped resin that comes out from the hole (25) in the stuffing is on the surface of the button (7). There is a protrusion on the top, but you can just cut it off.

Instead of the ring-shaped frame (16), it is also possible to install a simple support. This is it A ring-shaped gap is created between the supporting disc (]5) and the edge (22) of the key (6). Therefore, excess resin exits from the filling (17) without having to make a hole in it. deer In this case, the edges of the tambo are irregularly shaped, so after the tambo has hardened, it cannot be cut. The edges must be trimmed or finished flat.

The resin that makes the tank can be cured at ambient temperature by appropriately mixing a hardening agent. You can do it as you like. However, in order to preserve the resin for a long period of time, heating It can also be formulated to cure sufficiently quickly from the beginning. After filling the key with resin, For example, it is heated and hardened by blowing hot air on it.

The wind instrument (1) shown in Figure 4 is, for example, a flute or saxophone, which is connected to the wind instrument (2). A certain hole (3) is surrounded by a chimney-like frame (4) attached to the tube (2). hole (3 ) rests on the edge (5) of the key (6), which is attached to the tube (2). It moves by a joint (7a). Hole (3)! (6) for the purpose of sealing (5). ) is equipped with a resilient button. This button should face the edge of the hole (5). A circle whose cut side is covered with a soft cover (9a) of resin, synthetic rubber or natural rubber. It is made of board (8). Between this film (9a) and the disc (8), there is a hardened resin. A soft cushion is installed.

This membrane (9a) is 8! of the disk (8). Weld or paste on (111).

The disc (8) is made of elastic resin or rubber. There is a disk inside the key body (112). (8) and to eliminate unevenness on the inner surface (115) of the key body. A compensating resin (115) is installed between this inner wall (114) and the disc (8).

A disk (8) covered with a membrane (9a) that supports a soft resin cushion (110) is It is fixed in the key body (112) with screws (116). This screw is attached to the auxiliary plate (11 7) and fix the disk (8) at the center. In this example and the examples below The material of the membrane may be a thin, stretchable cloth or fibrous tissue or intestinal membrane. cloth or fiber It is preferable that the Mi weave is waterproofed to make it smooth to sit on.

The soft resin cushion (110) is shaped into the shape of the edge (5) along the edge of the hole (3). The flexible membrane (9a) also has a shape that corresponds to the deformation of the surface of the cushion (110). Take. This deformation of the cushion (110) is caused by the front surface (118) of the disc (8) and the membrane. Liquid or paste resin is injected into the space between (9a) and the key (6) is pressed. This is achieved by closing as shown in Figure 4 and curing the resin in this state. . While this resin hardens into a soft resin cushion (110), the shape of the edge (5) It is shaped accurately.

In manufacturing the tank shown in Figure 4, the disc (8) is made of elastic resin as shown in Figure 5. Alternatively, it is preferably made of medium hardness rubber. This disk is small (Tomoso The front surface (118) is covered with a thin, soft and stretchable membrane (9a), forming a disc. (8) Welded or pasted. This joint or weld should be made at the front edge or side of the disc. It will be held in

This membrane bonding or welding also affects the rear side (12) of the disc (8) as shown in FIG. 0) is also possible.

In this case, the membrane (9a) covers both the front side (118) and the rear side (120) of the disc (8). It will be completely covered. The material for the membrane is synthetic rubber or soft elastic material. The most suitable resin is Natural rubber is also suitable. The thickness of the membrane (9a) is 0 ．． The thickness is preferably 1 w* or less, but a thicker layer is also possible.

A resin paper forms a cushion (110) in the space between the disc (8) and the membrane (9a). For example, as shown in FIG. This is done by inserting a needle into the central opening (121) or membrane (9a). this A disk as shown in FIG. 7 is formed by this. Addition to the key body (112) After attaching the resin material (115) for maintenance, the disc is attached to the auxiliary plate (117) and screws (11). 6) is fixed to the key body (112). As a result, resin for cushions (110a) and the disk (8) are covered with a film (9a), resulting in a structure as shown in FIG. film (9a) is held between the edge of the opening (121) of the disc (8) by the auxiliary plate (117). As a result, the resin forms a cushion (110) between the disc (8) and the membrane (9a). (110a) is packed into a ring shape.

When the key (6) is closed, the membrane-covered button fits tightly against the edge (5) of the hole (3) and the tree The edges of the hole are shaped while the fat (110a) solidifies and forms the cushion (110). , the shape of the button deforms along the edge (5) of the hole (3).

As a variation of the above process, the disc (8) is coated with a membrane covering its front surface (118). (9a) and first fix it in the key body (112) with the screw (116), IF liquid or paste resin (110a) forming the cushion (110) It is also possible to inject between the disc (8) and the membrane (9a) by making a hole in J (9a) with a syringe needle. It is Noh. In this case as well, the finished state is as shown in FIG.

The disk (8) is clearly harder than the solidified state of the soft resin cushion (110). Make with materials. The appropriate Shore hardness for the soft resin cushion (110) is 20 to 50. be.

In the structure shown in FIG. 4, the inner wall of the key body (112) is recessed in an annular shape. There is a relatively thin screw hole (122) in the center. In this case, the compensation resin (115) It is preferable to attach the disc (8) while it is still sufficiently soft. This allows the disk ( The opening (121) of 8) is filled with a compensating resin. Key (6) seen in Figure 9 In this variation, the inner surface (114) of the key body (112) is almost flat. There is a cylindrical part (123) in the center. Fix the screw (116) inside this. The screw hole (124) is installed. In this case, insert the disc (8) It is better to simply harden the correction resin (115).

This creates a relatively flat surface to stabilize the disk (8), so this is the best place to do it. Insert the disk (8) and secure with the screw (116) and auxiliary plate (117). this is, This is advantageous in that the disk (8) can be easily replaced. screws as desired In addition to fixing the disk (8) to the key body (112) with adhesive, It can also be combined.

This method of fixing the button to the key with adhesive is suitable for small keys. There is only a small recess for attaching the board, and there is no space to fix it with screws. It is also used when you want to. flute, saxophone, clarinet, obo This is the case with the 33rd chord of the bassoon and piccolo.

Figure 10 shows a small hole (3) in the flute which is closed by a key (6). There is. Here again, the structure corresponds to that shown in Figure 4, with a disc (8) inside the key body (112). It is attached.

A soft elastic membrane (9a) is stretched on the front surface (11B) of this disc. , there is a cushion (110) made of elastic resin between the disk (8) and the membrane (9a). . As explained in Figure 4, this cushion is made from a resin that hardens on the spot. , in which case the chimney-shaped frame (4) surrounding the hole (3)! ! It deforms along the shape of (5), and As a result, the tambo or tambo cushion (110) is shaped exactly as the edge (5). Become. The disk (8) is fixed in the key body (112) with adhesive and is In some cases, a compensating resin may be installed in the key body (112) in advance. There is also. The resin forming the cushion (110) has a disc (8) that is similar to the key body (11). 2) the space between the disc (8) and the membrane (9a) before or after being fixed with adhesive; is injected with a syringe needle.

The structure mirrored in Figure 1O is shown in Figure 11, where the hole (3) It is surrounded by a plane (125) cut through the wall of the tube (2). The key (6) can be moved freely. The button is attached to the joint so that the button is outside the cut surface (125). Riding on the side (126). The disc (127) forming the tampon is on the front (128) is covered with a soft resin or rubber film (9a), and the cushion (110) is filled. It is filled.

The disc (127) is made of a material that is elastic but softer than the resin (110) of the cushion. Here, a central hole is formed along the outer surface (126) of the cut portion (125). It is provided with a recess (129). The disk (127) is similar to the example in Fig. 4, and the key body ( 112) with adhesive. The resin cushion (110) is also shown in FIGS. 4 to 10. Built as described.

The variation shown in Fig. 12 is characterized by an annular shape on the front surface (118) of the disc (8). There is a groove (130), which is filled with a resin cushion (110). . The method of fixing the disc (8) to the key body (112) is the same as the variation shown in Figure 9. Similarly, the screw (116) and the auxiliary plate (117) are used. This pressure creates a circle The part between the plate (8) and the membrane (9a) is closed inward, and the outside is closed by the membrane (9a). a) is pasted to the edge of the disk (8), thereby sealing it. disk In this case as well, elastic materials can be used. But here the cushion (110 ), a harder material such as hard resin or metal is used for the disc (8). It is also possible.

Depending on the thickness of this cushion, the cushion should fit the shape of the edge (5) of the hole (3). It is also easier to deform the resin. A cushion (110) is also formed here. The resin applied to the disc can be applied to the disc before or after installing the disc (8) into the key body (112). It is possible to inject into the space between (8) and the membrane (9) or into the annular groove.

international search report ANNEX To THE INTERNATXONAL 5EARC! (RF :? (:RT ON

Claims (1)

[Claims] 1. How to make a wind instrument with keys for varying pitches: The holes that determine the pitch These keys can be selectively closed with a key, but these keys have a hole in the hole when the key is closed. Install tampons to seal the edges. For this purpose, it hardens into a resin with soft elasticity. Fill the key with a resin paste or liquid that has the properties of Special features in this process The sign is that the resin-filled keys are supported in a position that corresponds to the closed position on the finished instrument. The edge of the hole, which is covered by the key, is pressed into the resin and the shape is made. This means that after the resin has solidified, the support supporting the key is removed. be. 2. Manufacturing method regarding item 1: In the hole (3) closed by the key (6), The special feature of this method is that the padding (17) is inserted before the key (6) is closed. This filling is located at the edge of the hole (3) slightly below the edge (5) itself. Ru. 3. Method for item 2: The stuffing (17) with the outlet (25) is inserted into the key (6). ) into the hole (3) which is closed. 4. Method related to item 2 or 3: The volume of resin filled for pad (7) is The volume of the space surrounded by the key (6) in the closed state and the filled hole of the stuffing (17) More than quantity. 5. Method for any of items 1-4: key (6) passes through key edge (22) It is supported in a position where the surface does not yet touch the surface passing through the edge (5) of the hole. 6. Method for item 5: With the key (6) in the closed position, surround the edge (5) of the hole. the frame (16) that connects to the edge (22) of the key and supports it before closing the key. Attach to the outside of the edge of the hole (5) or to the key (6). This frame (16) is made of hardened resin. Remove after washing. 7. Method for item 6: around the hole (3) closed by the key (6), a hole Apply a plastic paste, such as wax or putty, so that the edges of the Press the supporting disk (15) against the This disc supports the support frame (16) and Fix (6) in the closed position. 8. Method for item 7: The support disc (15) and the support frame (16) are glued together. Fix it. 9. How to make a wind instrument with keys for varying pitches: The holes that determine the pitch These keys can be selectively closed with a key, but these keys have a hole in the hole when the key is closed. Attach a soft elastic pad to seal the edges. Characteristics of this process The key is a disc whose front surface is covered with an elastic membrane. Ru. The material for this membrane is an elastic resin or rubber film, thin and stretchable. Possible materials include cloth, fibrous tissue, or intestinal membranes. Before or after inserting this disc into the key, add a soft elastic material to the space between the disc and the membrane. Inject hardening resin into the resin with the handle, then place the key over the hole to close the hole and remove it from the tree. harden the fat. 10. Method for item 9: Paste the elastic film on the front edge or side of the disc. After fixing by gluing or welding, insert a syringe needle into the film to inject liquid or paste. A shaped resin is injected between the disc and the membrane. 11. Method relating to item 9 or 10: Injecting a resin that solidifies on its own at ambient temperature. 12. Method related to item 9 or 10: Using a resin that begins to harden under the action of radiant heat, After installing the disc into the key, radiant heat is applied to the open pad side of the key to harden it. cause. Then place the key over the hole and let the resin harden. 13. Method related to item 9 or 10: Resin that cures only at temperatures above ambient temperature , place the key over each hole, and then continue heat to harden the resin. 14. Method for item 9: Place a disc with cushion resin on the inside surface of the key. Flatten before installation. 15. Disk used in the method of item 9: This disk (8,127) is a resilient tree. Made of fat or rubber, the front surface (118, 128) is covered with an elastic membrane. (9a). The material for this film is a soft resin or rubber film, thin and stretchy. Stretchable fabrics, fibrous tissue or intestinal membranes are suitable. This film is on the front side of the disc. and/or its side (111) and/or back side (120) by adhesive or welding. It is fixed. 16. Disc used in the method of item 9: An annular groove (130) is formed on the front side of the disc (8). It is engraved and then covered with a soft resin or rubber film, a thin and stretchy cloth, It is covered by a membrane made of fibrous tissue or intestinal membranes. This film is on the front side of the disc. attached or welded to the edges and/or to the sides and/or back of the 17. Disc used in item 15 or 16: Disc (8, 127) and film (9a) In the space between them, there is a liquid or Injects a paste-like resin (110). 18. A wind instrument equipped with a key for changing notes: In this instrument, the pitch of the note is determined by the key. These keys can be closed selectively, but when the key is closed, the hole A soft elastic pad is attached to seal the edges. This pad has a soft elasticity between the elastic membrane (9a) and the disc (8, 127). A cushion (110) made of resin is attached. . Stretchable membranes can be made of synthetic rubber, natural rubber, or thin, stretchy cloth or fibrous tissue. is made of intestinal membranes, and the discs are made of (8,127) elastic resin or rubber. cage, with its front edge and/or sides (111) and/or cushions attached. The back side (120) is fixed by adhesive or welding. 19. Wind instruments according to item 18: The elastic membrane (9a) of the pad is an elastic resin film. is made from. 20. Wind instruments according to item 18 or 19: soft elastic cushion (110) Made from recon rubber. 21. Musical instruments according to any of items 18 to 20: Soft elastic cushion (1 10) has a Shore hardness of 20 to 50. 22. Instrument according to any of items 18 to 21: disc (8,127) is elastic Harder than the cushion (110). 23. Instruments according to any of items 18 to 22: Hole in which the key rests on the disc (8) An annular groove (130) is carved along the shape of the edge of the cushion. filled with resin forming a hole (110). 24. Instruments according to any of items 18 to 22: the edge of the disc (127) The shape follows the upper surface (125) of the hole (3) on which the key (6) rests.