JP2627603B2 - Pads for wind instruments such as flutes and methods for manufacturing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pad for wind instruments such as flutes, and more particularly, the present invention relates to a pad which is basically improved by improving the material constituting the body of the pad and its structure. In addition to fundamentally improving various characteristics such as moisture absorption, moisture deformability, contact characteristics to the sound hole surface, and durability, which are the most important factors of
Flute that can exhibit excellent operability and acoustic characteristics not found in conventional products, and can be easily manufactured without the need for advanced assembly adjustment technology unlike conventional products The present invention relates to a new type of pad and its manufacturing method in wind instruments and the like, and to a wind instrument such as a flute equipped with the pad.

[0002]

2. Description of the Related Art Wind instruments such as flutes generate a constant pitch by continuously repeating the operation of opening and closing a sound hole formed in the instrument body with a pad. The quality and characteristics of the pad are extremely important factors that influence the value of the wind instrument itself, and various types of products have been conventionally developed.

[0003] Among them, a pad structure widely used in a wind instrument such as a conventional flute is known as shown in FIG. And wrap it in animal thin skin (hereinafter referred to as skin) of 5 and further adhere to form a pad. Then, punch a hole for screwing, and form it with a screw of 8 Or fixed to a pad screw receiver 6 soldered to the key 1 or made of a flexible substance such as synthetic rubber alone such as silicon rubber or a synthetic chemical product in the form of a pad. Some products are fixed to the key 1, but these products have the following drawbacks.

[0004] First, in the case of the former, in which the pad body made of felt is wrapped with a skin, both substances are extremely weak against moisture, and a flute or the like into which moist breath is always blown when used. In order to enable the pad to absorb and absorb moisture and deform so that the sound hole can be stably and instantly and continuously completely closed and opened. However, there is a problem that a high level of assembly adjustment technology is required, and it is difficult to maintain a stable and good state even in such a case.
In particular, the felt constituting the pad body has a problem that the deformation caused by the absorption and discharge of moisture is remarkable.

On the other hand, in the latter pad made of a flexible substance such as a synthetic rubber alone, since the substance is quite water-repellent due to the nature of the substance, water droplets are formed on the surface of the pad during playing. After the sound hole is closed, it is difficult to produce the correct sound. It is easy for the sound holes to be stuck and the sound holes not to open instantaneously, and has a defect that is fatal for wind instruments. Therefore, from this situation,
At present, although there is a problem that madness is apt to occur, as a pad for wind instruments such as flutes, a pad having a structure in which the former felt is wrapped with a skin is currently the mainstream.

[0006]

In view of such circumstances, the present inventor has developed a high-level solution which fundamentally solves the above-mentioned problems of a pad having a structure in which the felt, which is currently dominant, is wrapped with a skin. As a result of intensive research aimed at developing a new type of pad with high performance, we improved the material of the pad body to improve various characteristics of the pad, and made use of the characteristics of the material to improve the pad and sound hole. It has been found that the intended purpose can be achieved by adding structural improvements that can fundamentally improve the contact characteristics with the surface, and have completed the present invention.

[0007]

The present invention for achieving the above object is constituted by the following technical means (1) to (4). (1) The pad body is formed of a molded product of a polyurethane polymer chemical product such as urethane foam, and the pad body formed by impregnating a synthetic resin into the pad body is formed into a structure wrapped with a skin. Pads for wind instruments such as flutes.

(2) A molded sheet of a polyurethane-based polymer chemical product such as urethane foam is molded into a pad to form a pad body, and the obtained pad body is impregnated with a synthetic resin. The method for producing a pad for a wind instrument such as a flute according to the above (1), wherein the body is formed in a structure wrapped in a skin.

(3) The pad body is formed of a molded product of a polyurethane-based polymer chemical product such as urethane foam, and has a structure in which the pad body is impregnated with a synthetic resin and wrapped with a skin. A pad for a wind instrument such as a flute, characterized in that a shallow groove of 0.2 mm or less is formed on a pad surface in contact with the sound hole.

(4) The pad body is made of a molded product of a polyurethane polymer chemical product such as urethane foam, and has a structure in which the pad body is impregnated with a synthetic resin and wrapped with a skin. A wind instrument, such as a flute, wherein the pad according to (1) is mounted.

Next, the structure of the pad of the present invention will be described in detail in comparison with a conventional product. First,
FIG. 1 is an explanatory view showing a partial side sectional view of a pad and a sound hole of a wind instrument such as a flute, and the pad indicates a conventional product. In FIG. 1, reference numeral 1 denotes a key into which a pad is inserted, and reference numeral 2 denotes a space when the pad is inserted. Reference numeral 3 denotes a mount, which is adhered to the felt of the pad body. Reference numeral 4 denotes a felt formed by punching in a round shape and constituting a main body of the pad. 5
Is a skin for wrapping felt, and usually a skin in which the intestinal skin of an animal is thinned. Reference numeral 6 denotes a pad fixing screw receiver, which is soldered to the key 1. 7 is a pad fixing washer, 8 is a pad fixing screw, 9
Indicates sound holes opened in the flute main body, respectively.

FIG. 2 is a plan view of a pad and pad of a conventional product. FIG.
, 1 is a key cup, and 5 is a pad wrapped with felt. Reference numeral 7 denotes a pad fixing washer, and reference numeral 8 denotes a pad fixing screw.

In contrast to such a conventional pad product, the pad structure of the present invention has structural features as shown in FIG. 3 and FIG. That is, FIG. 3 is an explanatory view composed of a partial side sectional view of a pad of a wind instrument such as a flute and a sound hole, and the pad indicates the pad of the present invention. In FIG. 3, 1 'is a key into which a pad is inserted, and 2' is a flat padding used to suppress distortion of the pad. Reference numeral 3 'denotes a mount, which is adhered to urethane foam of the pad body. Reference numeral 4 'denotes a sheet of urethane foam which is formed by punching in a round shape, and is a main body of a pad impregnated with a synthetic resin.
5 'is a skin wrapped with urethane foam. As the skin, a skin in which the intestine skin of an animal is thinned is usually used, but the skin is not limited to this, and a skin having the same effect or a similar one is appropriately used. Reference numeral 6 'denotes a pad fixing screw receiver, which is soldered to 1'. Numeral 7 'denotes a pad fixing washer, and numeral 8' denotes a pad fixing screw. 9 'indicates a sound hole opened in the flute body. 1
0 'is an extremely shallow groove formed in the pad so as to completely match the sound hole.

Next, FIG. 4 is an explanatory view showing a plan view of a key and a pad constituting the pad of the present invention. In FIG. 4, reference numeral 1 'denotes a key cup, and reference numeral 5' denotes a pad in which a urethane foam impregnated with a synthetic resin is wrapped with a skin. 7 'is a washer for stopping the pad, 8'
Indicates a pad fixing screw. Reference numeral 10 'denotes an extremely shallow groove formed in the pad so as to completely match the sound hole. The shallow groove preferably has a diameter of 0.2 mm or less.

As described above, the pad of the present invention has been developed with the aim of fundamentally solving the problems of conventional products, and the pad according to the present invention uses felt as the pad body. It overcomes all the former two deficiencies of the conventional product and the conventional product using a flexible substance.

That is, the structure and advantages thereof will be described in detail below. First, a molded sheet of a synthetic resin-impregnated polymer chemical product such as urethane foam of 4 'in FIG. To form a round blank, which is glued to the 3 'mount. At this time, a synthetic resin-impregnated polymer chemical product such as urethane foam is impregnated with the synthetic resin, formed into a structure wrapped with a 5 'skin, adhered to a 3' mount, and then screwed. Punch holes for use.

As the polyurethane polymer chemical product such as urethane foam constituting the pad body of the present invention, urethane foam, that is, polyurethane is preferably used. However, the present invention is not limited to this. If it is effective or similar, it can be used as a suitable one. These urethane foams and the like are preferably formed by using a molded sheet of a urethane foam or the like and impregnating the molded sheet with a synthetic resin. Further, as the synthetic resin to be impregnated, for example, acrylic, silicone, and urethane-based synthetic resins are exemplified as preferable ones, but are not limited thereto, and are ordinary synthetic resins such as urethane. Any material having excellent properties such as compatibility with a foam or the like can be appropriately used.

The impregnation of the synthetic resin may be carried out in any of the steps before and after the molding of a molded sheet of urethane foam or the like to the size of the pad, and is not particularly limited. Preferably, after molding a molded sheet such as urethane foam to the dimensions of the pad, using a synthetic resin impregnation solution adjusted to an appropriate concentration,
It is preferable to appropriately perform impregnation treatment by an impregnation method such as injection, immersion, or spraying.

The present invention uses a urethane foam impregnated with a synthetic resin as a material of the pad body,
After the impregnating treatment, adjust the contactability with the sound hole by passing it through a process of wrapping it with a skin at an early stage until the action of the synthetic resin is over and leaving the pad in contact with the sound hole for a certain period of time It is important that By passing through this step, the flexibility of the synthetic resin-impregnated urethane foam or the like of the pad body is incorporated into the 1 'key, and the pad is kept in contact with the 9' sound hole for a certain period of time. As shown at 10 'in FIGS. 3 and 4, a shape of a shallow groove having a diameter of, for example, 0.2 mm or less can be obtained, as shown at 10' in FIGS. Can be. Further, in the present invention, a synthetic resin impregnated with this shape in urethane foam or the like has an effect of fixing.

By doing so, it is possible to save the advanced technology and the trouble of the assembly adjustment, which have been inevitably required in the past, and to make the airtightness with the sound hole surface extremely good. The pad of the present invention has a characteristic that it has a characteristic of accepting moderately moisture absorption and that there is no deformation of the pad, so that the pad can be maintained in a good condition for a long time without breaking its good state. can do. In addition, even when the pad is displaced from the sound hole due to a physical impact or the like, the pad can be easily recalled to its original shape by stimulating the pad with a chemical such as a synthetic resin solvent. Since it can be used, it can be repeatedly used by adjusting the contact with the sound hole again at that point by adjusting the contact property with the sound hole, which is a feature not found in the conventional product. Further, the pad of the present invention can be widely used as a pad for wind instruments such as flutes, and the type of wind instrument to which the pad is attached is not particularly limited.

Next, the results of a comparative test of the performance of the pad of the present invention and the conventional pad product against moisture and the like (pad water absorption test) are shown.

(1) Test Material The test material of the pad of the present invention (a product in which urethane foam is impregnated with an acrylic synthetic resin as a pad body) and a conventional product (a product in which felt is used as a pad body) are used as test materials. A comparative test was performed.

(2) Test method Using a pad used for a wind instrument such as a flute as a test material, in order to reproduce conditions such as moisture which becomes a problem when actually performing, a slightly hot water of 25 ° C. is applied to the surface of the pad. After dropping a certain amount, changes in the pad due to absorption of water after a certain period of time, that is, the influence of moisture on the pad were examined. That is, the water absorption characteristics of the pad were investigated by measuring the diameter of a water droplet on the pad surface observed after a certain period of time at room temperature (25 ° C.) after the water was dropped. At the same time, the pad using the pad of the present invention and a conventional felt for items such as morphological change of the pad itself, a state of breakage, distortion, deformation state such as elasticity, durability, and contact characteristics with the sound hole surface. The survey was conducted in a form of comparative evaluation with the product.

(3) Evaluation Results As a result of the water absorption test of the pad as described above, the water droplet diameter of the conventional pad product increased in about 7 minutes after the water was dropped, and water was absorbed in about 45 minutes. In 55 minutes, the entire absorption and deformation of water began to be observed, and in about 3 hours, deformation that caused warping occurred, and the entire deformation was observed. After about 5
Water absorption was observed in 5 minutes, and water was completely absorbed in about 24 hours, but no deformation was observed. (The results of this water absorption test are shown in Table 1.)

[0025]

[Table 1]

This is due to the fact that in the case of the conventional product using felt for the pad body, the felt absorbs moisture and the fibers expand and contract easily, so that the pad body is easily deformed. In the product of the present invention, water is retained between the foamed structures of the urethane foam. However, it is considered that the water-repellent substance does not cause any further deformation due to the water retention.

In the conventional pad product, two skins are used one on top of the other, but this is based on the idea that even if one of the skins is torn, the other can be secured underneath. It is. However, in practice, the felt on the pad body absorbs moisture, so if you notice that the skin has been torn, it often breaks down almost to the bottom. This will have a great effect on the sound of the sound, and even if it does not break, the pad will be easily distorted if two skins are used, and how to deal with it, the durability of the pad It was a very important factor in improving the performance.

As described above, in general, at present, a pad having two skins is a mainstream product, which is adopted in consideration of the safety action of the pad.
This has rather led to an increase in pad distortion. That is, the tension of the skin is different between the vertical direction and the horizontal direction of the skin, and also changes slightly depending on the difference in the tension at the time of bonding, which causes distortion. Therefore, the double stacking results in an increase in the strain rather than the pad durability, deformation characteristics, etc., and it can be said that it is actually the opposite effect from the viewpoint of the pad, but there is no effective way to improve this. It was in a situation that had not been found.

On the other hand, the pad of the present invention is extremely excellent in this respect. In particular, the impregnated synthetic resin serves as a second skin, and the first skin is used as a sound hole. It has been found that it has an effect of remarkably enhancing the contact characteristics with respect to the sound hole so that the sound hole can be kept in the shape, and plays a role of obtaining a suitable contact state with the sound hole. Originally, urethane foam and the like have no water retention ability because they are water-repellent substances, and do not have such a function. It was found that water was absorbed and water retention was generated. Therefore, it has been found that the pad has the characteristic that, even if it absorbs moisture, the pad itself is not changed at all just by retaining it.

As described above, the pad of the present invention is extremely superior to the conventional product in all items such as water absorption characteristics, deformation state, durability, and contact characteristics with sound holes. In addition to the above, the problem of the conventional product is fundamentally solved, and by using the pad of the present invention, a wind instrument such as a high-performance flute can be easily formed without requiring advanced assembly adjustment technology. It turned out to be something that could be made.

That is, while the advanced technology and labor of assembly adjustment can be omitted, the airtightness between the pad and the sound hole is extremely good, and the pad body only accepts moderately moisture absorption, so that the pad is not deformed, A good state with the hole surface can be stably maintained without collapse. In general, regarding the relationship between pad quality and characteristics, for example, if the pad is too soft, the sound is blurred, but the sound hole closes well even if there are some gaps, while the pad is hard. If it passes too far, the sound will be clearer and the rise will be better, but on the other hand, there is a correlation that it is difficult to cover the gap between the sound hole and it is difficult to develop a product that satisfies both characteristics. However, the product of the present invention satisfies both of these characteristics at a high level.

Further, even when the sound hole and the pad are displaced due to a physical impact accident or the like, the initial shape can be recalled only by applying a chemical treatment such as a solvent. It has an unprecedented property that it can be easily regenerated to a usable state by adjusting the contact property.

As described above, by using the pad of the present invention, the musical instrument maker can easily perform the assembly adjustment and reduce the cost. On the other hand, the user is worried that the pad is out of order. A good sound that can be obtained stably over a long period of time without being applied, and both the instrument manufacturer and the user have a unique effect that is not seen in conventional products, such as a remarkable improvement in mutual benefits. can get.

[0034]

As described in detail above, the present invention uses a molded sheet of a polyurethane polymer chemical product such as urethane foam as a material of a pad body, impregnates with a synthetic resin, and forms a structure wrapped with a skin. Pertaining to a pad in a wind instrument such as a flute,
ADVANTAGE OF THE INVENTION According to this invention, while having the high water absorption and the pad deformation | transformation by this water absorption, distortion, the problem of breakage of a skin etc. by a water absorption which can be fundamentally solved, it has moderate water absorption and durability. The present invention can provide a high-quality pad having characteristics such as high performance, excellent contact characteristics with respect to sound holes, excellent contact characteristics with sound holes, and excellent operability during performance. .

Further, the pad of the present invention having the above characteristics is also extremely excellent in processing characteristics, and in particular, a product having excellent contact characteristics with respect to sound holes requires a high level of assembly adjustment technology. Thus, it is possible to easily and efficiently manufacture without any problems.

Further, according to the present invention, a flute or the like which can maintain a stable and stable tone over a long period of time with little or no disruption of the pad which has been observed during the performance. Wind instruments can be provided.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a partial side sectional view of a pad of a wind instrument such as a conventional flute.

FIG. 2 is an explanatory diagram including a plan view of a key and a pad of a conventional pad.

FIG. 3 is an explanatory view consisting of a partial side sectional view of a wind instrument such as a flute equipped with the pad of the present invention.

FIG. 4 is an explanatory diagram showing a plan view of a key and a pad of the pad of the present invention.

[Explanation of symbols]

DESCRIPTION OF REFERENCE NUMERALS 1 pad cup for pad 2 space 3 mount 4 pad body 5 skin 6 pad fixing screw receiver 7 pad fixing washer 8 pad fixing screw 9 sound hole 1 'key cup for entering pad 2' to suppress distortion of pad Flat padding 3 'Mount 4' Pad body made of urethane foam impregnated with synthetic resin 5 'Skin wrapping urethane foam 6' Pad fixing screw receiver 7 'Pad fixing washer 8' Pad fixing screw 9 'Sound hole Extremely shallow groove formed in 10 'pad

Claims (4)

(57) [Claims] [Claim 1] pad body, port such as urethane foam
A pad for a wind instrument such as a flute, comprising a molded body of a urethane-based polymer chemical product, wherein a pad body formed by impregnating a synthetic resin into the molded body is wrapped with a skin. 2. A molding a molded sheet of Polyurethane polymer chemical products such as urethane foam in the form of a pad constitutes the pad body, after impregnating the pad body to the synthetic resin obtained, the pad The method for producing a pad for a wind instrument such as a flute according to claim 1, wherein the body is formed in a structure wrapped with a skin. 3. A pad body, port such as urethane foam
It is composed of a molded product of a urethane-based polymer chemical product, and is formed in a structure in which a pad body impregnated with a synthetic resin is wrapped in a skin, and the sound hole is provided on a pad surface in contact with the sound hole. 0 . A pad for a wind instrument such as a flute, wherein a shallow groove of 2 mm or less is formed. 4. A pad body, port such as urethane foam
2. The pad according to claim 1, wherein the pad is formed of a molded body of a urethane-based polymer chemical product, wherein the pad body is impregnated with a synthetic resin and is wrapped with a skin. Wind instruments, such as flutes, that are fitted.