JP2015043068A - Recorder and ring-shaped member used for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recorder that allows a player to easily recognize the positions of sound holes and to close the sound holes, and that functions as an introduction to a conventional recorder.SOLUTION: Periphery of a sound hole 2 of a recorder is made into a cross-sectional shape having a smooth convex protrusion, and thereby a hole periphery 3 (contour part of the sound hole) is made into an acute-angled shape. This makes stimulation to the ball of a finger strong, and allows a player to easily recognize the position of the sound holes and to close them. Furthermore, this stimulation improves motivation to recognize the sound hole, and also allows the player to easily recognize the hole periphery of a conventional recorder. Thus, this recorder is also optimal as an introduction to the conventional recorder. It is also possible to make the hole periphery into a flat-surface shape or curved-surface shape as far as it does not impair stimulation. In addition, attaching a detachable structure having a similar structure to the conventional recorder enables obtaining equivalent effect. It is also possible to use the structure only to necessary sound holes depending on the form of a recorder, characteristics of a finger of a learner, and the degree of proficiency.

Description

  The present invention relates to a recorder and a ring-shaped member used therefor, which are easy to recognize the position when a sound hole for changing the pitch of a sound during performance is closed with a finger, has excellent sealing performance, and is easy for children and beginners to handle. is there.

  As shown in FIGS. 25 to 27, the conventional recorder has only a sound hole in the side surface of the tube. However, with this method, it is difficult to reliably close the sound holes with the fingers of children and beginners. In particular, the left hand must hold the four holes in the upper part of the tube (one back hole and three front holes). The finger could come off the sound hole, making it difficult for the recorder to pronounce.

  As an improvement measure, in the Shinobue of Patent Document 1, in order to easily recognize the position of the sound hole, a concave shape is formed from the periphery around the sound hole. When pressing with a finger, the concave surface stabilizes on the finger pad, thereby trying to solve the problem. Even in the recorder, as shown in Non-Patent Document 1, the bottom two sound holes are two holes so that a semitone higher sound (C #, D #) can be produced, and this is done with the right hand ring finger and little finger. Some have a concave surface that matches the belly of the finger to close it. This means that even if the outline of the sound hole cannot be recognized, it will be closed if this area is pressed. In other words, the shape (concave surface) that fits the belly of the finger does not encourage beginners and children to recognize the outline of the sound hole. In the future, however, learners must be able to play with traditional recorders. In other words, a recorder that only has a sound hole on the side of the tube must be able to recognize the outline of the sound hole with the belly of the finger and completely close it. For this purpose, a recorder that is devised for children and beginners and that can be completely closed while focusing on recognizing the outline of the sound hole is necessary.

  Further, in Patent Document 2, a composite sound hole composed of a sound hole and a pad is formed by attaching a pad to the sound hole of the original instrument body, and even a user who is not accustomed can accurately set the sound hole. There is a whistle (wind instrument) that can be held down. However, this pad is a thin flat surface that makes it easy to estimate the position of the sound hole to some extent, but it has the same shape as a conventional recorder (with a sound hole only on the side of the tube). It can be said that the awareness of trying to recognize the outline of the sound hole is poor.

  According to Patent Document 3, “protrusions are provided around the finger holes so that the positions of the finger holes can be easily detected, thereby reducing fingering errors”. However, this protrusion is merely a protrusion, and it is easy to detect the position of the sound hole, but it does not promote awareness to try to recognize the outline of the sound hole as in the above-mentioned document. The shape of the protrusions is also important for sealing, but for learners, it must be said that it is an instant shape. In addition, since the protrusion described in Patent Document 3 is provided in a rib shape that stands up vertically with a substantially constant thickness around the sound hole, the original sound hole can be obtained by pressing a part that is slightly removed from the protrusion. It is necessary to move the finger up and down, left and right, or visually confirm where it is, which is insufficient as an effect of identifying the position of the sound hole. In particular, the back hole in the upper part of the recorder's tube was difficult to visually confirm, and it had to be taken away from the mouth. Furthermore, the rib-shaped protrusions described in Patent Document 3 are easily damaged when the protrusions are unintentionally hit, and due to the structure of the recorder, the sound holes are completely removed when even a part of the protrusions are damaged. There is a drawback that a predetermined sound cannot be produced because it cannot be closed. In order to prevent such unintentional breakage, when a flexible material such as a resin is used, there is a possibility that the projection may be deformed during the performance of the recorder, resulting in difficulty in performance.

Japanese Patent Publication No. 2005-134855 JP 2013-213952 A JP 2008-152217 A

Yamaha Corporation “School Musical Instruments and Equipment Catalog (April 2013 Edition)”

  Conventional recorders only have sound holes in the side of the tube. Therefore, it was difficult to recognize the position and shape with the belly of the finger during performance, and it was not easy for children and beginners to close it completely.

  According to the present invention, the sound hole of the recorder has a cross-sectional shape that is raised in a gentle mountain shape, and thereby the outline of the sound hole (hereinafter referred to as “hole periphery” or “hole periphery”) has an acute angle shape. The main feature is to become.

The recorder of the present invention has the following effects.
-Since the periphery of the sound hole is formed in a cross-sectional shape that protrudes gently toward the sound hole, the position of the sound hole can be easily recognized. In other words, if the top of the ridge that is gently raised is pressed down, the sound hole is securely held down, and even if the position slightly deviated from the sound hole is pressed, if the finger is shifted to the higher cross-sectional shape raised in the hill As a result, the position of the sound hole can be easily recognized. Furthermore, since the perimeter of the sound hole is raised in a gentle mountain shape, it is hard to break even if it hits this raised part, and even if it is made of a soft material, it is hard to be deformed, and the sound hole is securely closed with fingers. Will be able to.
-Since the acute angle shape of the hole periphery strongly stimulates the finger, the shape of the hole can be easily recognized by the belly of the finger.
・ Since the acute angle shape of the perimeter of the hole constantly stimulates the belly of the finger, it is possible to raise awareness of the perimeter of the perforation. However, it is easy to recognize the hole circumference.
・ Sound holes can be reliably closed by the sharp angle shape of the hole circumference that slightly bites into the belly of the finger.

Fig. 4 is a perspective view when the sound hole has a planar shape, a cross-sectional shape in which the sound hole is raised in a gentle mountain shape, and the hole periphery has an acute angle. FIG. 2 is a cross-sectional view in the direction perpendicular to the tube axis of FIG. FIG. 2 is a cross-sectional view in the tube axis direction of FIG. 1. FIG. 2 is a cross-sectional view in the direction perpendicular to the tube axis when the sound hole of FIG. FIG. 3 is a perspective view when the sound hole has a planar shape and the hole periphery has a trapezoidal shape. FIG. 6 is a cross-sectional view in the direction perpendicular to the tube axis in FIG. 5. FIG. 6 is a cross-sectional view in the tube axis direction of FIG. 5. FIG. 6 is a cross-sectional view in the direction perpendicular to the tube axis when the sound hole of FIG. 5 is concentric with the side surface of the tube. FIG. 3 is a perspective view when the sound hole is formed in a planar shape and the hole circumferential portion trapezoidal hole circumferential plane is inclined inward. FIG. 10 is a cross-sectional view in the direction perpendicular to the tube axis in FIG. 9. FIG. 10 is a sectional view in the tube axis direction of FIG. 9. FIG. 10 is a cross-sectional view in the direction perpendicular to the tube axis when the sound hole of FIG. 9 is concentric with the side surface of the tube. FIG. 3 is a perspective view in the case where the sound hole has a planar shape and the hole periphery has a curved surface. FIG. 14 is a cross-sectional view in the direction perpendicular to the tube axis in FIG. 13. FIG. 14 is a cross-sectional view in the tube axis direction of FIG. 13. FIG. 14 is a cross-sectional view in the direction perpendicular to the tube axis when the sound hole in FIG. 13 is concentric with the side surface of the tube. FIG. 3 is a perspective view when a concave shape is formed around a sound hole and the hole peripheral portion of Example 1 is formed. FIG. 18 is a cross-sectional view in the direction perpendicular to the tube axis in FIG. 17. FIG. 18 is a cross-sectional view in the tube axis direction of FIG. 17. FIG. 3 is a perspective view of a structure (an example of an acute angle) in which an acute angle portion of a sound hole is attached to a conventional recorder. FIG. 21 is a cross-sectional view perpendicular to the tube axis of FIG. 20. FIG. 21 is a cross-sectional view in the tube axis direction of FIG. 20. FIG. 3 is a perspective view of a structure (an example of a ring shape) in which an acute angle portion of a sound hole can be attached to a conventional recorder. Is a sectional view of FIG. FIG. 3 is a perspective view of a sound hole of a conventional recorder. FIG. 26 is a cross-sectional view perpendicular to the tube axis in FIG. 25. FIG. 26 is a cross-sectional view in the tube axis direction of FIG. 25.

  The recorder according to the present invention includes a hollow middle tube having a plurality of sound holes 2, 2..., A head tube connected to one end of the middle tube, and having a shed. The foot tube is connected to the other end of the middle tube and has a hollow cross-sectional shape with one sound hole 2. In FIG. 1 to FIG. 19, a middle tube and a foot tube provided with the sound hole 2 are represented as a tube body 1.

  1 to 4 show an embodiment of claims 1 to 3. In the first embodiment, the periphery of the sound hole 2 is formed in a cross-sectional shape that rises gently toward the sound hole 2. That is, a gentle mountain shape with the hole periphery 3 as the top so that the periphery of the sound hole 2 protrudes from the outer surface of the cylindrical tubular body 1 toward the hole periphery 3 that is the outer edge of the sound hole 2. By forming the cross-sectional shape as follows, the periphery of the sound hole 2 is formed thicker than the cylindrical tubular body 1 portion.

  Thus, by forming the periphery of the sound hole 2 in a cross-sectional shape that rises gently toward the sound hole 2, the position of the sound hole 2 can be easily recognized as compared with a conventional recorder. . That is, the periphery of the sound hole 2 is raised in a gentle mountain shape as compared with the conventional recorder in which a circular hole is formed on the peripheral surface of the hollow cylindrical tube body shown in FIGS. If the top is pressed with the finger pad, the sound hole 2 can be securely pressed. In addition, even if a position slightly deviated from the sound hole 2, that is, a middle part that is raised in a gentle mountain shape is pressed, if the finger is shifted to the higher cross-sectional shape raised in the mountain shape, the sound hole 2 is surely reached. The position of the sound hole 2 can be easily found without having to move the finger up / down / left / right. Furthermore, since the periphery of the sound hole 2 is raised with a certain width, the sound hole 2 is not easily damaged even if it is bumped unexpectedly, and the sound hole 2 is not easily deformed even when formed of a soft material. It will be able to be closed reliably.

  As shown in FIGS. 2 and 3, the outline of the raised portion formed around the sound hole 2 is formed in a straight line shape or a convex curve shape inward in a cross-sectional view passing through the center of the sound hole 2. It is desirable to do. In other words, the outline connecting the hole periphery 3 of the sound hole 2 and the outer surface of the peripheral tube body 1 formed in a cylindrical shape is a straight line or a curved line that protrudes inward, and in the illustrated example, a curved line that protrudes inward. Is formed. The diameter of the outer edge of this outline (the portion connected to the peripheral tube 1 formed in a cylindrical shape) is preferably about 1.5 to 3 times the diameter of the sound hole 2. As a result, the gentle chevron can be clearly recognized when touched with a finger, and even if the position deviated from the sound hole 2 is pressed with the finger, the position of the original sound hole can be determined only by the tactile sensation of the finger without visual confirmation. Can be easily recognized.

  2 and FIG. 3, in a cross-sectional view passing through the center of the sound hole 2, the peripheral surface of the sound hole 2 (the straight portions on both sides extending in the depth direction of the sound hole 2) and the periphery of the sound hole 2 It is desirable that the angle formed with the outer contour line (in the case of being formed in a curved shape convex inward as in the illustrated example) is an acute angle. Thereby, the sound hole 2 can be recognized and reliably closed by the belly of the finger. In the first embodiment, as shown in FIG. 2, the peripheral surface of the sound hole 2 and the outer contour line around the sound hole 2 formed in a curved shape protruding inward are acute-angled at the hole periphery 3. It is formed to intersect. The acute angle may be 55 to 75 degrees, preferably 62 to 68 degrees. If the angle is smaller than 55 degrees, the outer contour line around the sound hole 2 cannot be said to be a cross-sectional shape in which it rises gently, but it becomes a sharply protruding cross-sectional shape, making it difficult to recognize the sound hole. When the raised portion is hit, it tends to be damaged, and when it is made of a flexible material, it is likely to be deformed when pressed with a finger. On the other hand, when the angle is greater than 75 degrees, the height of the raised portion becomes small, and it becomes difficult to recognize the sound hole without being aware of the mountain-shaped raised shape.

  The hole circumference 3 of the sound hole 2 may be formed linearly as shown in FIG. 2 with respect to the cross section of the tubular body 1 or may be formed in a cylindrical shape as shown in FIG. You may form in the circular arc shape concentric with the outer periphery of the tubular body 1. When the hole circumference 3 is formed in a straight line, the sound hole is easily blocked by the finger pad, and when it is formed in an arc shape, the center of the sound hole 2 is more easily recognized and the appearance is good. It becomes.

  5 to 8 are embodiments of claims 1 to 3. In the second embodiment, the acute angle portion of the hole circumference 3 of the first embodiment is flattened and trapezoidal so as not to impair irritation to the finger. That is, a ring-shaped flat portion (hole periphery 3) is formed between the outer edge of the sound hole 2 and the gentle chevron-shaped outline formed around the sound hole 2. Thereby, in addition to the effect of Example 1, the sharpness with respect to the belly of a finger can also be suppressed. The width of the ring-shaped flat part (hole circumference 3) is preferably about 0.6 mm to 1.0 mm.

  When the circumferential surface of the sound hole 2 is separated from the gentle chevron-shaped outline as in the second embodiment, a virtual line that extends the circumferential surface of the sound hole 2 outward, and the sound hole 2 is an imaginary line extending outwardly from the end of a gentle chevron-shaped outline formed around 2 (in the case of a curved line projecting inward as in the illustrated example, the tangent of the outer peripheral end ) Is formed into an acute angle. Also in the second embodiment, as in the first embodiment, the hole periphery 3 may be formed in a straight line as shown in FIGS. 6 and 7, or may be formed in an arc as shown in FIG. May be.

  9 to 12 are embodiments of the first to third aspects. In the third embodiment, the ring-shaped flat portion of the second embodiment is inclined inward of the sound hole 2. Thereby, in addition to the effect of the second embodiment, the belly of the finger can be easily accommodated in the sound hole, so that the possibility that the finger can be surely closed is increased. The inward inclination angle is preferably about 20 to 30 degrees from the flat state of Example 2 in order to easily fit in the belly of the finger. In the third embodiment, as in the first and second embodiments, the hole periphery 3 may be formed linearly as shown in FIGS. 10 and 11, or as shown in FIG. You may form in circular arc shape.

  13 to 16 are embodiments of the first to third aspects. In the fourth embodiment, the hole periphery of the first embodiment is curved so as not to impair finger stimulation. Thereby, in addition to the effects of the first embodiment, the sharpness with respect to the finger can be suppressed as much as possible, and a long-time practice performance is possible. As shown in FIGS. 14 and 15, the curved hole circumference 3 is preferably formed in a substantially semicircular cross section, and its radius reduces the stimulus to the finger and also when touched by the finger. In order not to impair the discrimination of the sound hole 2, it is preferable to form it with a thickness of 0.3 mm to 0.5 mm. Also in the fourth embodiment, like the first to third embodiments, the hole periphery 3 may be formed linearly as shown in FIGS. 14 and 15, or as shown in FIG. You may form in.

  17 to 19 are embodiments of the first to third aspects. In the fifth embodiment, a concave shape matching the belly of the finger pressed around the sound hole 2 is created, and the hole circumference 3 as in the above embodiment is formed in an acute angle inside. More specifically, a recess that is recessed with an arc-shaped cross section from the outer periphery of the cylindrical tubular body 1 is formed so as to circulate around the outer edge (hole periphery 3) of the sound hole 2. The concave portion is formed so as to have a cross-sectional shape in which the periphery of the sound hole 2 rises gently toward the sound hole 2 from the bottom of the arc-shaped cross section to the hole periphery 3. Thereby, in addition to the effects of the above-described embodiment, it is possible to further prevent finger misalignment from the sound holes. In the illustrated example, the hole periphery 3 is formed in an acute angle shape as in the first embodiment, but the hole periphery 3 is formed in a flat shape, an inclined shape, and a curved surface shape as in the second to fourth embodiments. Also good.

  20 to 22 show an embodiment of claim 4. The sixth embodiment is a ring-shaped member in which a raised portion around the sound hole 2 according to the first to fourth embodiments can be attached to and detached from a conventional recorder. In addition, although the example shown by FIGS. 20-22 is the shape of the protruding part which concerns on the said Example 1, it is good also as the shape of the protruding part which concerns on the said Examples 2-4. The ring-shaped member has an opening communicating with the sound hole 2 at the center, and the periphery of the opening is formed in a cross-sectional shape that rises gently toward the opening. This ring-shaped member is attached to the outer periphery of the sound hole 2 so that the central opening communicates with the sound hole 2 with respect to the conventional recorder shown in FIGS. Can be formed into a cross-sectional shape that rises gently toward the sound hole 2. This ring-shaped member can be made easy to cope with the curved surface on the outer periphery of the tubular body 1 having a cylindrical shape by being made of a flexible material such as rubber. Depending on the shape of the recorder and the characteristics of the player's fingers, it can be attached only to the required sound holes, or it can be removed depending on how it progresses.

Reference example

  23 to 24 show a reference example of claim 4 in which the ring-shaped member of Example 6 has a circular cross section. Only the mounting surface may have a flat shape.

1 Tube 2 Sound hole 3 Hole circumference

Claims (4)

  A recorder characterized in that a periphery of a sound hole is formed in a cross-sectional shape that protrudes gently toward the sound hole.   The recorder according to claim 1, wherein, in a cross-sectional view of the recorder passing through the center of the sound hole, an outline line around the sound hole is formed in a cross-sectional shape that protrudes in a straight line shape or a curved shape that protrudes inward.   2. The structure according to claim 1, wherein an angle formed by a peripheral surface of the sound hole and an outline around the sound hole is an acute angle in a sectional view of the recorder passing through the center of the sound hole. Recorder of crab.   A ring-shaped member that is detachably attached to a recorder having a sound hole, and has an opening that communicates with the sound hole in a central portion, and the periphery of the opening is raised in a gentle mountain shape toward the opening The ring-shaped member used for the recorder characterized by being formed in the cross-sectional shape to do.

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