JP7653635B2 - Woodwind ligature for single reed - Google Patents

Description

The present invention relates to a ligature for single-reed woodwind instruments, and more specifically to a ligature for single-reed woodwind instruments that ensures excellent sound quality, has a simple and well-designed structure, is easy to attach, prevents slippage during playing, and is easy to disassemble and maintain.

Traditionally, woodwind instruments such as saxophones and clarinets have been widely used not only in classical music performances, but also in jazz, pop and enka performances.
Such woodwind instruments are usually played by fastening the reed to the mouthpiece with a ligature, and the vibrations of the reed are amplified by the instrument.
More specifically, the mouthpiece has a table surface which abuts and fixes one end of the back surface of the reed, and a facing which extends at an angle from the table surface towards the tip, and a tip opening is formed between the other end of the back surface on the gripping side, so that by blowing air into the tip opening, the reed vibrates up and down like a cantilever, making it possible to produce sound.

Among woodwind instruments, mouthpieces for saxophones come in a variety of materials, including metal, rubber, wood, and ceramic, and a wide variety of ligatures are also used in terms of material and structure, and are used differently depending on the musical genre, such as classical or jazz.
An example of such a ligature for a single reed woodwind instrument is the type disclosed in Patent Document 1.

This ligature is for tightening the reed and mouthpiece so that the reed does not move, and comprises a thin plate portion made of metal, for example brass, for winding the reed and mouthpiece, tightening portions for tightening both ends of the thin plate portion at a position facing the reed across the mouthpiece, a protruding portion that protrudes toward the reed and contacts the reed at its tip, and a reinforcing member that is provided on the surface of the thin plate portion opposite the surface on which the protruding portion is provided and that extends laterally on both sides beyond the outermost end of the protruding portion when viewed from the mouthpiece, in order to reinforce the bending strength of the thin plate portion in the vicinity of the protruding portion and thereby prevent contact between the reed and the thin plate portion, the reinforcing member is attached around a hole provided on the reed-side surface of the thin plate portion, and the surface of the thin plate portion to which the reinforcing member is attached is formed to be approximately flat, and the tightening portion tightens both ends of the thin plate portion at a position facing the reed across the mouthpiece, using a screw hole, a cylindrical portion, and a screw.
It is stated that with a ligature of this configuration, even if it is tightened tightly, the ligature will not touch the edge of the reed, and the desired sound can be produced; however, the ligature makes surface contact with the reed along the longitudinal direction of the reed and across the entire width of the ligature, intentionally eliminating point contact.

However, as described in Patent Documents 2 and 3, from the standpoint of sound quality rather than the volume of the instrument when played, the smaller the contact area of the ligature with the reed, the better, and in this respect, line contact or point contact is better than surface contact.
In this regard, Patent Document 4 discloses another ligature.

This ligature has a base portion that is fixed to the mouthpiece and spans the width of the reed that is provided along the table surface of the mouthpiece, a pressure plate portion that presses the reed against the table surface of the mouthpiece, and a tightening screw portion that screws into the base portion. The pressure plate portion has a clearance hole portion through which the tightening screw portion passes in the thickness direction, and a pair of pressure portions that extend in opposite directions on either side of the clearance hole portion. The base portion has a screw hole portion into which the tightening screw portion can be screwed. The pressure plate portion is provided in the space between the reed and the base portion and is provided so as to come into surface contact with the curved front surface of the skin portion of the reed in the extension direction of the table surface. When the tightening screw portion is tightened into the screw hole portion, the pressure plate portion can press the reed against the mouthpiece.

In the case of this ligature, it is possible to reduce the contact area with the reed by using a pressure plate, but because the pressure plate is located in the space between the base and the reed, i.e., below the base, the overall structure is large, unwieldy, and heavy, and it is inconvenient to wear with the reed in contact with the mouthpiece. Also, when gripping the ligature with your fingers and rotating it around the length of the mouthpiece to adjust the depth at which the mouthpiece is inserted into the instrument while playing, the ligature's fixed position on the reed shifts, which can cause problems when playing.

Furthermore, because the pressure plate is located in the narrow space between the ligature and the reed and because the structure is complex, the female screw is soldered to the ligature body, making it inconvenient to disassemble the ligature itself and to perform maintenance such as disassembling it for cleaning.In addition, the ligature body can become soft due to the heat generated by the soldering, which can have an adverse effect on the sound quality.
Patent No. 4695225 US 2004/0177743 A1 U.S. Patent No. 5000073 US 2014/0305279 A1

Based on the above, the object of the present invention is to provide a ligature for single-reed woodwind instruments that ensures excellent sound quality, has a simple and well-designed structure, is easy to attach, can prevent slippage during performance, and is easy to disassemble and maintain.
An object of the present invention is to provide a ligature for a single reed woodwind instrument that has a simple and well-designed structure and can improve sound quality.

In order to achieve the above object, the present invention provides a ligature for a single reed woodwind instrument,
the mouthpiece has a base portion that is fixed to the mouthpiece and spans the width direction of the reed provided along the table surface of the mouthpiece, a press plate portion that presses the reed against the table surface of the mouthpiece, and a fastening screw portion that screws into the base portion, the press plate portion has a clearance hole portion that penetrates in the thickness direction and at least one press portion that extends obliquely downward from the clearance hole portion, the base portion has a screw hole portion into which the fastening screw portion can be screwed, the press plate portion is located above the base portion at the position where the base portion of the mouthpiece is provided, and is provided along the extension direction of the table surface,
The fastening screw portion passes through the clearance hole portion and is tightened against the screw hole portion, so that the pressing portion is pressed against the upper surface of the reed in a point contact or line contact manner, thereby making it possible to press and fix the reed against the mouthpiece.

The pressing portion is composed of a pair of pressing portions extending in opposite directions with the clearance hole between them, the pressing plate portion is located above the base portion at a position where the base portion of the mouthpiece is provided, and is provided along the extension direction of the table surface so as to straddle the width of the base portion from above, and the pressing plate portion is capable of pressing the reed against the mouthpiece via the pair of pressing portions,
the pressing plate portion has a central portion in which the clearance hole is provided and which is longer than the width of the base portion, the pair of pressing portions each have a leg portion extending downward from a corresponding end portion of the central portion, and a pressing surface is provided at the lower end of the leg portion such that the pressing portion can press against an upper surface of the lead in a point contact or line contact manner,
Each of the pair of pressing portions preferably has a pair of legs, and the legs preferably extend obliquely downward within the width direction of the lead so as to move away from each other in the width direction of the lead.

In order to achieve the above object, the present invention provides a ligature for a single reed woodwind instrument,
a base portion that is fixed to the mouthpiece and spans the width direction of the reed that is provided along the table surface of the mouthpiece, a press plate portion that presses the reed against the table surface of the mouthpiece, and a fastening screw portion that screws into the base portion, the press plate portion has a clearance hole portion that passes through in the thickness direction and at least one press portion extending from the clearance hole portion, the base portion has a screw hole portion into which the fastening screw portion can be screwed, the press plate portion is located above the base portion at a position where the base portion of the mouthpiece is provided and is provided along the extension direction of the table surface, the fastening screw portion passes through the clearance hole portion and is fastened to the screw hole portion, thereby enabling the press plate portion to press the reed against the mouthpiece via the press portion,
The base portion is formed in an annular shape covering the outer peripheral surface of the mouthpiece, and by tightening the fastening screw portion against the base portion, the base portion is pressed against an edge portion of the reed in the width direction or against a portion of the mouthpiece in the diametrical direction,
The annular base portion is made of pure silver, and an irregular pattern consisting of polyhedral portions, each of which is flat or curved, is formed in a ring shape on the outer peripheral side surface, and adjacent polyhedral portions are arranged in an uneven manner so as not to be contained within the same cylindrical surface concentric with the mouthpiece, each of the polyhedral portions forms a polygon on the curved surface, and adjacent polyhedral portions share the sides of the polygon.

In order to achieve the above object, the present invention provides a ligature for a single reed woodwind instrument,
a base portion that is fixed to the mouthpiece and spans the width direction of the reed that is provided along the table surface of the mouthpiece, a press plate portion that presses the reed against the table surface of the mouthpiece, and a fastening screw portion that screws into the base portion, the press plate portion has a clearance hole portion that passes through in the thickness direction and at least one press portion extending from the clearance hole portion, the base portion has a screw hole portion into which the fastening screw portion can be screwed, the press plate portion is located above the base portion at a position where the base portion of the mouthpiece is provided and is provided along the extension direction of the table surface, the fastening screw portion passes through the clearance hole portion and is fastened to the screw hole portion, thereby enabling the press plate portion to press the reed against the mouthpiece via the press portion,
The fastening screw portion is a nut portion that is fixed to the pressing plate and that screws into a male screw portion that extends upward.

In order to achieve the above object, the present invention provides a ligature for a single reed woodwind instrument,
the rubber mouthpiece has a base portion that straddles the width direction of a reed that is provided along the table surface of the rubber mouthpiece and is fixed to the rubber mouthpiece, a press plate portion that presses the reed against the table surface of the rubber mouthpiece, and a tightening screw portion that screws into the base portion, the press plate portion has a clearance hole portion that penetrates in the thickness direction and at least one press portion extending from the clearance hole portion, the base portion has a screw hole portion into which the tightening screw portion can be screwed, the press plate portion is located above the base portion at a position where the base portion of the rubber mouthpiece is provided and is provided along the extension direction of the table surface, the tightening screw portion passes through the clearance hole portion and is tightened against the screw hole portion, allowing the press plate portion to press the reed against the rubber mouthpiece via the press portion,
The pressing portion is composed of a pair of pressing portions extending in opposite directions with the clearance hole between them, and the pressing plate portion is located above the base portion at a position where the base portion of the rubber mouthpiece is provided, and is provided along the extension direction of the table surface so as to straddle the width of the base portion from above, so that the pressing plate portion can press the reed against the rubber mouthpiece via the pair of pressing portions,
Each of the opposing edges of the base portion is provided with a convex portion extending at a downward angle toward the other, and a long groove is provided on the outer peripheral surface of the rubber mouthpiece near the lower table surface, into which the convex portion can fit, and when the convex portion of the base portion fits into the long groove, a space is formed between the base portion and the table surface of the rubber mouthpiece, so that the portion between the opposing edges has an arch-shaped cross-section with a radius smaller than the arc of the rubber mouthpiece that is constantly formed in the extension direction of the edges.

Further, a facing surface is provided from the end of the table surface on the side of the mouthpiece held in the mouth towards the mouthpiece, the table surface is inclined downward towards the end of the mouthpiece on the side of the mouthpiece held in the mouth, while the facing surface is inclined upward from the end on the side of the mouthpiece on the side of the mouthpiece, and the boundary between the table surface and the facing surface forms the bottom of a recess.
The long groove preferably extends to the end of the mouthpiece that is connected to the instrument body, while the end of the mouthpiece that is held in the mouth should extend beyond the bottom of the recess toward the end of the mouthpiece that is held in the mouth.

Below, with reference to the attached drawings, we will explain the use of the single-reed woodwind instrument ligature 10 of the present invention, using a saxophone as an example of a woodwind instrument.

As shown in Figures 1 and 2, the mouthpiece MP has a table surface T that abuts and fixes one end of the back surface of the reed R, and a facing F that extends at an angle from the table surface T toward the tip. A tip opening O is formed between the other end of the back surface on the gripping side, allowing the reed R to vibrate up and down like a cantilever beam to produce sound. The single-reed woodwind instrument ligature 10 of the present invention is provided in an annular shape around the longitudinal direction of the mouthpiece MP on the outer peripheral side of the mouthpiece MP and is fixed to the mouthpiece MP. The mouthpiece MP is a metal or rubber mouthpiece MP for soprano saxophone, alto saxophone, tenor saxophone, or baritone saxophone.

The single-reed woodwind ligature 10 of the present invention is roughly composed of a base portion 12 that spans the width of the reed R that is arranged along the table surface T of the mouthpiece MP and is fixed to the mouthpiece MP, a pressing plate portion 14 that presses the reed R against the table surface T of the mouthpiece MP, and a tightening screw portion 16 that screws into the base portion 12.

As shown in Figure 3, the base portion 12 has a clearance hole 22, and the clearance hole 22 is positioned in the center of the width w of the reed R within the longitudinal range of the skin portion SR of the reed R and aligned with the clearance hole 18 of the pressing plate portion 14 (described later). This allows the fastening screw portion 16 to pass through the clearance hole 18 and be fastened against the screw hole portion 22 of a protrusion 40 (described later) provided on the base portion 12, thereby enabling the pressing plate portion 14 to press the reed R against the mouthpiece MP via the pair of pressing portions 20.
The base portion 12 is formed in a ring shape covering the outer peripheral surface 44 of the mouthpiece MP, and by tightening the base portion 12 with the tightening screw portion 16, the base portion 12 is pressed against the widthwise edge portion E of the reed R or the diametrically opposite portion of the mouthpiece MP.
When the base portion 12 is attached to the mouthpiece MP, the smaller the distance between the underside of the base portion 12 and the front surface of the skin portion SR of the reed R positioned on the table surface T of the mouthpiece MP, the better, but it is set to, for example, 1 mm or less.

The width w1 of the base portion 12 is approximately one-fifth to one-third of the longitudinal length of the skin portion SR of the reed R, the thickness t1 is thinner than the thickness of the mouthpiece MP, approximately a few millimeters, the diameter is large enough to cover the outer circumferential surface 44 of the mouthpiece MP, and the material is preferably metal, for example brass, and especially silver.

4, the pressing plate portion 14 has a clearance hole portion 18 through which the fastening screw portion 16 passes in the thickness direction, and a pair of pressing portions 20 extending in opposite directions to each other across the clearance hole portion 18. The diameter of the clearance hole portion 18 is large enough to allow a shank portion 54 (described later) of the fastening screw portion 16 to pass therethrough.
More specifically, an annular protrusion 31 having a flat upper surface is provided on the upper surface of the pressing plate portion 14, and a clearance hole 18 is provided in the upper surface of the annular protrusion 31.
The pressure plate portion 14 is located above the base portion 12 at the position where the base portion 12 of the mouthpiece MP is provided, and is provided along the extension direction of the table surface T so as to straddle the width w1 of the base portion 12 from above, and the pressure plate portion 14 has an approximately U-shaped side cross section.

Each of the pair of pressing portions 20 has two pressing surfaces 24 spaced apart from each other in the width direction of the lead R.
More specifically, the pressing plate portion 14 is provided with a clearance hole 18 and has a central portion 26 that is longer than the width w1 of the base portion 12, and the pair of pressing portions 20 each have a leg portion 30 extending downward from the corresponding end of the central portion 26, and a pressing surface 24 is provided at the lower end of the leg portion 30.
The pressing surface 24 is arched in the width direction of the lead R so as to fit along the curved surface of the skin portion SR of the lead R.

Regarding the pressing surface 24, the contact area of the pressing surface 24 with the front surface of the skin portion SR of the lead R can be adjusted by the pressing force of the pressing plate portion 14 against the lead R by tightening the fastening screw portion 16, depending on the degree of curvature of the front surface of the skin portion SR of the lead R.
More specifically, the longitudinal cross section of the reed R of the pressing surface 24 has a shape that slopes downward from the central portion 26 side to the longitudinal tip portion. More specifically, of the pair of pressing plate portions 14, the pressing surface 24 provided on the tip side from the central portion 26 has a shape that slopes downward from the central portion 26 side to the longitudinal tip portion, and the pressing surface 24 provided on the instrument side from the central portion 26 has a shape that slopes downward from the central portion 26 side to the longitudinal tip portion on the instrument side.
In either case, the rigidity, particularly the thickness, of the leg 30 is set so that the longitudinal tip first comes into contact with the front surface of the skin portion SR of the lead R, and as the pressing force increases, the contact area increases from the longitudinal tip toward the center.

On the other hand, the widthwise cross section of the pressing surface 24 of the lead R is curved from the widthwise center of the lead R to the widthwise tip. More specifically, in each of the pair of pressing plate parts 14, the pressing surface 24 of one leg part 30 is curved from the widthwise center of the lead R to the widthwise tip, and the pressing surface 24 of the other leg part 30 is curved from the widthwise center of the lead R to the tip in the opposite width direction. In this case, the rigidity, particularly the thickness, of the leg part 30 is set so that the widthwise tip first contacts the front surface of the skin part SR of the lead R, and the contact area increases from the widthwise tip toward the widthwise center of the lead R as the pressing force increases. The curved shape of the front surface of the skin part SR of the lead R varies depending on the type of lead R, and the contact area can be adjusted by increasing or decreasing the contact area in the longitudinal and width directions by adjusting the pressing force, and versatility can be ensured for the type of lead R.
As shown in FIG. 16, the present woodwind ligature for single reed 10 has a lower center of gravity than the conventional ligature installed below the base, i.e., between the base and the reed R. The contact of the pressing surfaces 24 with the front surface of the skin portion SR of the reed R is at two positions spaced apart in the longitudinal direction of the reed R, and at each position, each pressing surface 24 makes line contact with the front surface of the skin portion SR. Furthermore, the line contact area can be adjusted through the pressing force by changing the degree of tightening of the fastening screw portion 16. As a result, the sound quality can be improved and adjusted despite the simple structure.

The clearance hole 18 is an elliptical opening whose major axis is located in the longitudinal direction of the central portion 26 and is set to a size that allows the shank portion 54 of the fastening screw portion 16, which will be described later, to pass therethrough.
The pair of legs 30 extend obliquely downward within the width direction of the lead R so as to move away from each other in the width direction of the lead R.
The base portion 12 and/or the pressure plate portion 14 may be lacquered on the front surface, which, like the instrument itself, can improve the sound quality.
The distance D in the longitudinal direction between the pair of pressing portions 20 is preferably one third to one half of the length of the surface portion SR of the front surface of the lead R.
The width of the central portion 26 of the pressing plate portion 14 is preferably one-third to one-half the width of the mouthpiece MP, and the height of the U-shape, i.e., the height h2 of the central portion 26 relative to the pressing portion 20, can be determined according to the arch height of the base portion 12 so that the pressing surfaces 24 of each of the pair of pressing portions 20 can press and fix the reed R against the table surface T of the mouthpiece MP by screwing the fastening screw portion 16 into the screw hole portion 22 of the convex portion 41 described later. However, from the viewpoint of lowering the center of gravity of the entire woodwind instrument ligature for single reed 10 as much as possible and contributing to improving sound quality, it is preferable that the height is as low as possible, for example, within 5 mm, and the material should be metal, for example, brass, and especially silver.

16, the pressing plate 14 has a recess 36 with an elliptical cross section on the back surface thereof, concentric with the clearance hole 18, and the pressing plate 14 is fixed to the base 12 so as to be immovable relative to the base 12 by fitting the recess 36 into a protrusion 40 (described later). More specifically, the upper surface of the protrusion 40 abuts against the annular bottom surface 37 of the recess 36, determining the relative height of the pressing plate 14 to the table surface T of the mouthpiece MP, and making it impossible for the pressing plate 14 to rotate relative to the protrusion 40, and thus the base 12.
The relative height of the pressing plate portion 14 with respect to the table surface T of the mouthpiece MP may be set so that the front surface of the skin portion SR of the reed R set on the table surface T of the mouthpiece MP can be pressed and fixed by screwing in the fastening screw portion 16.

As a modified example, the pressing plate portion 14 may have a clearance hole 18 and a central portion 26 longer than the width w1 of the base portion 12, and each of the pair of pressing portions 20 may have an inclined portion (not shown) extending downward from the entire corresponding end portion 28 of the central portion 26, and each of the pair of pressing portions 20 may extend from the entire lower end of the inclined portion and have a pressing surface 24 provided on the lower surface.
In this case, the pressing surface 24 has a pair of protrusions (not shown) spaced apart from each other in the width direction of the pressing plate portion 14, and each of the pair of protrusions forms a curved surface that protrudes downward to the extent that the front surface of the skin portion SR of the lead R is not recessed by pressing, and may make point contact with the lead R via the curved surface.

As shown in FIG. 5, the fastening screw portion 16 has a shank portion 54 and a head portion 56 that is concentrically provided at the tip of the shank portion 54 and can be rotated by being held with fingers.
By tightening the fastening screw 16, the pressing plate 14 between the fastening screw 16 and the base 12 fixed to the mouthpiece MP is pressed against the base 12, i.e., the front surface of the reed R, and the reed R is fixed to the table surface T of the mouthpiece MP. The pressing force of the pressing plate 14 against the reed R can be adjusted by the degree of tightening by the fastening screw 16.
From the standpoint of lightweight design, it is preferable that the head portion 56 is not solid, but rather consists of an upper plate and an annular plate extending downward from the periphery of the upper plate, and that the upper plate be approximately polygonal in shape so that the annular plate can be easily pinched with the fingers and rotated around the longitudinal direction of the shank portion 54.
As shown in Figure 8, it is preferable to set the length l2 of the shank portion 54 so that the lower end of the shank portion 54 does not protrude as much as possible from the lower surface of the convex portion 40 when the fastening screw portion 16 is tightened until the lower surface 64 of the solid cylindrical portion 62 of the shank portion 54 abuts on the upper surface of the annular protrusion 31 of the press plate portion 14.
Furthermore, a solid cylindrical section 62 is provided concentrically with the shank section 54 at the base of the shank section 54. In this case, since the sound quality changes depending on the mass of the solid cylindrical section 62, it is preferable to adjust the diameter and/or length l1 of the solid cylindrical section 62.
With the annular bottom surface 37 of the recess 36 on the underside of the pressure plate portion 14 abutting against the upper surface of the protrusion 43 of the convex portion 40, by tightening the tightening screw portion 16, the lower surface 64 of the solid cylindrical portion 62 of the shank portion 54 abuts against the upper surface of the annular protrusion portion 31 of the pressure plate portion 14, thereby enabling the pressure plate portion 14 to press and fix the reed R against the table surface T of the mouthpiece MP.

As shown in Fig. 6, a convex portion 40 is provided to be inserted from below into the clearance hole portion 22 of the base portion 12. The convex portion 40 has a protruding portion 43 with an elliptical cross section having the threaded hole portion 22, and an overhanging flange portion 41 provided on the lower portion of the protruding portion 43, and the convex portion 40 is inserted into the clearance hole portion 22 from below the base portion 12 until the overhanging flange portion 41 abuts on the inner peripheral surface of the base portion 12, and the upper surface of the protruding portion 43 protrudes from the outer peripheral surface of the base portion 12, and the recessed portion 36 on the lower surface of the pressing plate portion 14 is fitted into the protruding portion 43, with the threaded hole portion 22 vertically aligned with the clearance hole portion 18 of the pressing plate portion 14, and the tightening screw portion 16 can be screwed into the threaded hole portion 22 from above via the clearance hole portion 18. The recess 36 and the protrusion 40 are elliptical in shape with their major axis oriented in the width direction of the mouthpiece MP, and by fitting the protrusion 40 into the recess 36, the pressing plate portion 14 is prevented from rotating relative to the base portion 12.
1, if a protrusion 40 having an elliptical cross section is inserted through the elliptical opening 22 from below the annular base 12 until the overhanging flange 41 hits the inner peripheral surface of the annular base 12, and the annular upper surface protrudes from the outer peripheral surface of the annular base 12, it is possible to set the protrusion 40 to be non-rotatable relative to the annular base 12. Similarly, by fitting the recess 36 on the lower surface of the pressing plate 14 into the protrusion 43, it is possible to set the pressing plate 14 to be non-rotatable relative to the annular base 12, and by screwing the shank 54 of the tightening screw 16 into the screw hole 22 of the protrusion 40 with the reed R positioned on the table surface T of the mouthpiece MP, it is possible to press and fix the reed R against the table surface T by the pressing surface 24.
As described above, in the case of the annular base portion 12, even if a threaded hole portion is not provided in the thickness direction of the annular base portion 12 itself, there is no need to fix the convex portion 40 having a threaded hole portion to the annular base portion 12 by brazing as in the conventional method, and it is possible to avoid the adverse effects on sound quality caused by the heating caused by brazing.
Furthermore, when the protruding flange portion 41 of the convex portion 40 contacts the inner surface of the annular base portion 12, it is preferable that the protruding flange portion 41 does not protrude from the inner surface but is flush with the inner surface. Therefore, if this is acceptable in relation to the thickness of the annular base portion 12, it is also possible to provide a recess of a complementary shape to the protruding flange portion 41 on the inner surface of the annular base portion 12, the thickness of which is sufficient.

As shown in FIG. 7, the elastic ring 17 is interposed between the pressing plate portion 14 and the fastening screw portion 16. More specifically, the elastic ring 17 is annular with a circular opening 19, and when the shank portion 54 is passed through the circular opening 19 and the fastening screw portion 16 is fastened, the elastic ring 17 is pressed against the pressing plate portion 14, and is crushed in the vertical direction, and the pressing force of the pressing plate portion 14 is reinforced by the repulsive force. The sound quality can be changed by selecting the rigidity of the elastic ring 17. For example, a rubber ring with low rigidity produces a soft tone, while a spring washer with high rigidity produces a bright, sharp sound but a slightly thin sound. The elastic ring 17 is optional, and in that case, the lower surface 64 of the solid cylindrical portion 62 of the shank portion 54 directly contacts the upper surface of the annular protrusion portion 31 of the pressing plate portion 14.
Incidentally, when the tightening screw portion 16 is tightened to pass the convex portion 41 through the clearance hole 28 of the annular ring 12, and when the concave portion 36 of the press plate portion 14 is fitted onto the protrusion 43 of the convex portion 41, some lateral play is permitted in both cases.

As shown in Fig. 13, as a modified example of the annular base portion 12, it is made of pure silver, and an irregular pattern PN consisting of multi-faceted portions 46 each consisting of a flat or curved surface is formed in an annular shape on the outer peripheral side surface 38, and adjacent multi-faceted portions 46 may be provided in an irregular shape so as not to be contained within the same cylindrical surface concentric with the mouthpiece MP. The difference in height of the irregularities is set to 0.1 mm or more. If it is less than 0.1 mm, it is difficult to obtain the sound quality improvement effect of the present invention through the mouthpiece MP due to the increase in the surface area of the outer peripheral side surface 16. The irregular pattern PN may be a hammered pattern or a matte pattern.
An example of pure silver is SV950, and as long as the purity is equal to or higher than the usual 92.5%, it is possible to obtain the sound quality improvement effect of the present invention.
Each of the polyhedral portions 46 may form a polygon on the curved surface, and adjacent polyhedral portions 46 may share the polygonal sides 17. In the polyhedral portions 46, the sizes and shapes of the polygons are different, thereby forming an irregular pattern PN.

Such an annular base portion 12 is preferably made by forging a flat plate of pure silver with a thickness of 1 to 3 mm to form a multi-faceted portion 46 that forms an irregular pattern PN, and then bending the flat plate of pure silver into a ring shape.

In this way, the weakness of the thin pure silver structure is reinforced by the forging, and as a result of the forging, a hammered pattern composed of multiple facets 46 is obtained, with each multiple facet 46 having a different shape and size, which creates an acoustic effect similar to the unevenness formed on the inner surface of the resonance box of a Japanese drum.Furthermore, the multiple facets 46 with the irregular pattern PN reflect light from a light source in a dark indoor environment in a sparkling manner in various directions, making it possible to improve the design of the woodwind instrument on which the mouthpiece MP is attached.
The width w1 of the pure silver annular base portion 12 is set to be 80% or more of the width W of the reed R. If it is less than 80%, it is difficult to obtain a sound quality effect through the mouthpiece MP.
The thickness t1 of the pure silver annular base portion 12 is set according to the width W of the reed R and is set to 3 mm or less. If it is more than 3 mm, it is difficult to obtain the sound quality improvement effect of the present invention through the mouthpiece MP.
Regarding the width w1 and thickness t1 of the pure silver annular base portion 12, when the width w1 is to be secured, the size of the polygon in the multi-faceted portion 46 may be increased to reduce the density of the irregular pattern PN, and it is preferable to make the thickness t1 as thin as possible within the range in which the strength of the ligature 10 can be secured.

As a further variation, the multi-faceted portion 46 that forms the irregular pattern PN of the pure silver annular base portion 12 may be formed in a single stripe in the width direction and connected in horizontal stripes in the circumferential direction.

The sound quality improving portion is preferably the unevenness of the outer peripheral side surface 16 of the metal or rubber mouthpiece MP for saxophone, and the irregular pattern PN is formed on the outer peripheral side surface of the mouthpiece MP, which is composed of a circular multi-faceted portion 46 each having a flat or curved surface, and is not concentric with the cylindrical portion of the mouthpiece MP, and this may be formed by grinding. The entire surface of such a pure silver annular base portion 12 may be gold-plated, which makes it possible to bring out the complex warm tone characteristic of the gold material.
In addition, in the pure silver annular base portion 12 as such a sound quality improver, by using pure silver as the material in particular, since silver does not have a specific natural frequency compared to gold and copper, it has the effect of accentuating the uneven effect of the irregular pattern PN formed by the multi-faceted portion 46 provided on the outer surface.

As a further modification, as shown in Figure 14, it may be applied to a mouthpiece MP equipped with a sound quality improver in the form of a pure silver shank ring. More specifically, the sound quality improver is a pure silver shank ring, in which a multi-faceted portion 46 is formed by forging a pure silver plate with a thickness of 0.5 to 1.5 mm, the pure silver plate is bent into a ring shape, and is tightly fitted into the end portion 60 opposite the tip opening O of the mouthpiece. As with the pure silver base portion, the pure silver shank ring also has an irregular pattern PN on the outer periphery, which responds in a dispersed manner to various vibration frequencies, resulting in a rich sound that includes multiple harmonics, as well as an excellent resonance or sense of extension. By using both the pure silver base portion and the pure silver shank ring, these effects and the improved design are even more prominent.

As described above, by fastening the reed R to the mouthpiece MP using the annular base portion 12 made of pure silver with an uneven surface, an irregular pattern PN consisting of polyhedral portions 46 each having a flat or curved surface is formed on the outer circumferential side of the mouthpiece MP, which is not concentric with the cylindrical portion of the mouthpiece MP. Therefore, when air is blown into the mouthpiece MP through the tip opening to produce sound, it is possible to smoothly and continuously go from a silent state to a sounding state. In the sounding state, due to the increase in the surface area of the outer circumferential side due to the unevenness and the irregular pattern PN, a specific vibration frequency of the reed R is resonated with, emphasizing not only that sound, but also the sound of a Japanese drum. Just like the uneven shape of the wave shape of the inner surface of the resonance box, it responds in a dispersed manner to various vibration frequencies, so not only is it rich in sound including multiple harmonics, it also has excellent resonance and a sense of extension, and it is possible to smoothly and continuously fade out from a sound state to a silent state. Generally, even inexperienced players who have not yet established the embouchure, which is important for controlling the sound, can easily manipulate the sound, allowing them to perform with a highly musical feel. In addition, the multi-faceted portion 46 of the irregular pattern PN reflects the light of the light in various directions, especially in a dark indoor environment, improving the design of the woodwind instrument on which the mouthpiece MP is attached.
Furthermore, in the case of a pure silver annular base portion 12 having such an irregular pattern PN, when the reed R is attached to the table surface T of the mouthpiece MP using the single-reed woodwind instrument ligature 10, the inner surface of the pure silver annular base portion 12 contacts the mouthpiece MP at a position diametrically opposite the table surface T of the mouthpiece MP. In addition, if the inner surface of the pure silver annular base portion 12 is made to directly contact the upper corners of both widthwise edge portions E of the reed R that are positioned on the table surface T of the mouthpiece MP, this sound quality improvement effect can be further enhanced.

According to the woodwind ligature 10 for a single reed having the above-mentioned configuration, the press plate portion 14 is positioned above the base portion 12, which is fixed to the mouthpiece MP and spans the width direction of the reed R provided along the table surface T of the mouthpiece MP, and the fastening screw portion 16 is inserted into the clearance hole portion 18 of the press plate portion 14 and fastened to the screw hole portion 22 of the base portion 12, so that the press plate portion 14 can press the reed R against the mouthpiece MP via the pair of press portions 20. Since the pair of press portions 20 extend in opposite directions to each other across the clearance hole portion 18, the reed R can be pressed against the surface of the table surface T of the mouthpiece MP from directly above at two points spaced apart in the longitudinal direction of the table surface T, thereby ensuring excellent sound quality. Since the pressure plate portion 14 is located above the base portion 12 and is arranged to straddle the width w1 of the base portion 12 from above along the extension direction of the table surface T, it has a simple structure with excellent design, and the ligature 10 can be easily attached to the mouthpiece MP. For example, when the ligature 10 for a single-reed woodwind instrument is held in one hand and the mouthpiece MP is rotated around the longitudinal direction relative to the instrument body to adjust the insertion depth of the mouthpiece MP into the instrument body during performance, it is possible to suppress the reed R from shifting relative to the mouthpiece MP during performance. Meanwhile, by simply loosening the fastening screw portion 16, the base portion 12, pressure plate portion 14 and fastening screw portion 16 can be disassembled separately, making it possible to provide a ligature 10 that is easy to disassemble and maintain.
When attaching the ligature, as shown in FIG. 1, the base portion 12, the pressure plate portion 14, and the fastening screw portion 16 are separated, and the reed R is passed through the opening of the base portion 12 and fixed to the mouthpiece MP. Next, the convex portion of the pressure plate portion 14 is inserted into the concave portion of the base portion 12 to position the pressure plate portion 14 relative to the base portion 12, and then the fastening screw portion 16 is fastened to press the pressure plate portion 14 against the curved front surface of the skin portion SR of the reed R. However, because the single-reed woodwind ligature 10 is composed of separate, disassembled components, it is possible to arrange various tones by selecting and combining the base portion 12, the pressure plate portion 14, the fastening screw portion 16, and the optional elastic ring 17.
Furthermore, even though the base portion 12, the pressing plate portion 14, and the fastening screw portion 16 are made up of separate component parts, they can be assembled using a screw structure without using brazing, which makes it possible to reduce factors that adversely affect sound quality when manufacturing the single-reed woodwind instrument ligature 10.

A second embodiment of the present invention will be described below. In the following description, components similar to those in the first embodiment are given the same reference numerals and their description will be omitted. Below, the characteristic parts of this embodiment will be described in detail with reference to Figs. 9 to 11.
The second embodiment of the present invention is characterized in that the base portion 12 is annular in the first embodiment and covers the entire circumferential surface of the mouthpiece MP, whereas in the present embodiment the base portion 12 does not cover the entire circumferential surface of the mouthpiece MP, but is arch-shaped and covers only the upper portion of the mouthpiece MP.

More specifically, the base 12 has an arch-shaped cross section with a smaller radius than the mouthpiece MP, and is formed uniformly in the longitudinal direction, with opposing longitudinal edges 48 each having a convex portion 50 facing the other, and a long groove 52 into which the convex portion 50 can fit is provided on the outer peripheral surface of the mouthpiece MP near the lower side of the table surface T. The long groove 52 has a substantially U-shaped cross section, is provided substantially horizontally in parallel with the table surface T, has a depth of about several millimeters, and is preferably provided at a position several millimeters below the table surface T of the mouthpiece MP.
The length of the long groove 52 may be determined from the viewpoint of being able to adjust the fixed position of the reed R by the pressing plate portion 14, and it is preferable that it extends from the boundary between the window of the mouthpiece MP and the table surface T to the opening end face of the mouthpiece MP on the instrument side.
In particular, it is preferable that the long groove 52 is provided so as to extend through the instrument side end of the mouthpiece MP, so that when the base portion 12 is attached to the mouthpiece MP, it can be inserted from the instrument side end toward the tip side.
More specifically, as shown in FIG. 9, a facing surface is provided from the end of the table surface T on the side of the mouthpiece MP that is held in the mouth toward the mouthpiece, and the table surface T slopes downward toward the end of the mouthpiece MP on the side of the mouthpiece, while the facing surface slopes upward from the end on the side of the mouthpiece, and when the boundary between the table surface T and the facing surface forms the bottom of the recess, the long groove 52 extends to the end of the mouthpiece MP on the side of the instrument body connection, while the end of the mouthpiece MP on the side of the mouthpiece MP that is held in the mouthpiece extends from the bottom of the recess toward the end on the side of the mouthpiece.
After attaching the base portion 12 to the mouthpiece MP and pressing and fixing the pressing plate portion 14 against the reed R with the fastening screw portion 16, when adjusting the longitudinal position of the mouthpiece MP of the woodwind instrument ligature 10 for single reeds, the convex portion 50 of the base portion 12 is simply slid longitudinally along the long groove 52.
Also, instead of providing a screw hole portion 22 in the arch-shaped base portion 12 itself, the convex portion 40 of the first embodiment is omitted, and the fastening screw portion 16 is directly screwed into the screw hole portion 22 of the arch-shaped base portion 12. However, since the first embodiment uses an annular base portion 12, from the standpoint of ensuring processing efficiency, the screw hole portion 22 is not provided in the annular base portion 12, and instead a convex portion 40 having a screw hole is provided separately.
In addition, by adjusting the arch shape of the base portion 12 so that the base portion 12 abuts against the upper corner of the widthwise edge portion E of the reed R, as in the first embodiment, the base portion 12 may be made of silver and an irregular pattern PN may be provided on its outer surface, which can help improve sound quality.

As a further modification, since rubber mouthpieces MP generally have a larger diameter than metal mouthpieces MP, it is possible to provide oblique long grooves 52 on both sides of the table surface T of the mouthpiece MP. More specifically, instead of providing horizontal long grooves 52 parallel to the table surface T of the mouthpiece MP, oblique long grooves 52 are provided toward the center of the mouthpiece MP, and convex portions 50 that slope downward toward the other are provided on each of the opposing longitudinal edges 48 of the arched base portion 12. This makes it possible to suppress the widthwise protrusion of the mouthpiece MP of the base portion 12, while firmly fixing the base portion 12 in a direction toward the center of the mouthpiece MP, compared to when the convex portions 50 are fitted into the long grooves 52 laterally from the sides of the mouthpiece MP.

A third embodiment of the present invention will be described below. In the following description, components similar to those in the first embodiment are given the same reference numerals and description thereof will be omitted. Below, the characteristic parts of this embodiment will be described in detail with reference to Figs. 12 and 15.
The third embodiment of the present invention is characterized in the fastening screw portion 16. In the first embodiment, the fastening screw portion 16 has a shank portion 54 that screws into the screw hole portion 22 of the base portion 12 and a head portion 56 that is held with the fingers and rotated, whereas in this embodiment, the fastening screw portion 16 is nut-shaped and screws into a threaded portion provided on the base portion 12 side.

More specifically, the fastening screw portion 16 is a nut portion 58 that is fixed to the press plate portion 14 and screws into an upwardly extending screw portion, and by screwing the nut portion 58 into the screw portion and moving it downward while rotating it, it is possible to press the press surface 24 of the press plate portion 14 against the curved front surface of the skin portion SR of the lead R, similar to the first embodiment. As shown in Fig. 15, the upwardly extending screw portion is fixed to the protrusion portion 40 so as to extend upward from the upper surface of the protrusion portion 40 in the first embodiment, and is provided so that the screw portion is passed through the clearance hole portion 22 of the annular base portion 12 and the protruding flange portion 41 abuts against the inner peripheral surface of the annular base portion 12, similar to the first embodiment.
In addition, compared to the first embodiment in which the rod-shaped shank portion 54 faces downward and is aligned in the direction in which the screw hole 22 in the base portion 12 extends, in this embodiment, the opening of the nut portion 58 is inserted from the upper end of the screw portion and rotated while advancing downward, making it easier to attach the ligature.

Although the embodiment of the present invention has been described in detail above, those skilled in the art can make various modifications and changes without departing from the scope of the present invention.
For example, in this embodiment, the pressure plate portion 14 of the woodwind instrument ligature 10 for single reeds has been described as having a pair of pressure portions 20 extending in opposite directions on either side of a central portion 26 having a clearance hole portion 18, but is not limited to this. For example, a single pressure portion 20 extending in one longitudinal direction from the central portion 26 may be provided, and in some cases, a single pressure portion 20 extending in one longitudinal direction from the central portion 26 to the tip side, or a single pressure portion 20 extending in one longitudinal direction from the central portion 26 to the instrument side may be provided, and either of these may be selected depending on the orientation of the pressure plate portion 14 relative to the mouthpiece MP.

For example, in this embodiment, the pressure plate portion 14 of the woodwind ligature 10 for single reeds has a pair of pressure portions 20 extending in opposite directions on either side of a central portion 26 having a clearance hole portion 18, each of the pair of pressure portions 20 having a leg portion 30, each of the pair of pressure portions having a pair of legs 30 extending downward from a corresponding end of the central portion 26, each leg 30 extending diagonally downward within the width direction of the reed R so as to move away from each other in the width direction of the reed R, and a pressure surface 24 is provided at the lower end of the leg 30, which has been described as having a linearly symmetrical structure in the longitudinal direction, but this is not limited to the above, and for example, a pair of legs 30 are provided only at the tip end of the central portion 26, and a single leg 30 is provided at the central portion 26 of the instrument side end of the central portion 26, and a single pressure surface 24 is provided at the instrument side end of the central portion 26. For example, a pair of legs 30 may be provided only at the tip end of the central portion 26, and the instrument side end of the central portion 26 may have an inclined portion extending downward from the entire instrument side end, and a pressing surface 24 may be provided on the lower surface extending from the entire lower end of the inclined portion. For example, a single leg 30 may be provided only at the tip end of the central portion 26, and a single pressing surface 24 may be provided, and the instrument side end of the central portion 26 may have an inclined portion extending downward from the entire instrument side end, and a pressing surface 24 may be provided on the lower surface extending from the entire lower end of the inclined portion. All of these have in common the simple structure in which the pressing plate portion 14 is located above the base portion 12 so as to straddle the width w1 of the base portion 12, but the form of the pressing plate portion 14 can be selected according to the desired sound quality.

For example, in the present embodiment, the pressing plate 14 of the woodwind ligature 10 for single reed has been described as fixing the reed R from above at four positions spaced apart in both the longitudinal and width directions, but the present invention is not limited thereto, and as long as the reed R is fixed from above at two positions spaced apart in the longitudinal direction, the pressing surface 24 may be provided with linear or point-like protrusions protruding downward, so that the pressing surface 24 makes line or point contact with the reed R. Note that point contact in this case does not mean that there is no contact area, but rather means that the contact area is smaller than that of surface or line contact, as long as the effect of improving sound quality, which is the subject of the present invention, is achieved.
For example, in this embodiment, the pressure plate portion 14 of the woodwind instrument ligature 10 for single reeds has an annular protrusion portion 31 on its upper surface, and the pressure plate portion 14 presses and fixes the reed R from above by tightening the tightening screw portion 16 until the lower surface 64 of the solid cylindrical portion 62 provided at the base of the shank portion 54 of the tightening screw portion hits the upper surface of the annular protrusion portion 31. However, this is not limited to this, and as long as the pressure plate portion 14 is capable of pressing and fixing the reed R from above, for example, the annular protrusion portion 31 on the upper surface of the pressure plate portion 14 may be omitted, and the tightening screw portion 16 may be tightened until the lower surface 64 of the solid cylindrical portion 62 hits the upper surface of the pressure plate portion 14.

For example, in this embodiment, the ligature 10 has been described as being attached to a saxophone mouthpiece MP, but the present invention is not limited to this and can be applied to mouthpieces MP used for single-reed woodwind instruments such as clarinets, not limited to saxophones.
For example, in the present embodiment, the pressing plate portion 14 is provided with a pair of pressing portions 20 extending in opposite longitudinal directions relative to a central portion 26 having a clearance hole portion 18, and each pressing portion 20 is provided with a pair of legs 30 extending diagonally downward, spaced apart in the width direction of the pressing plate portion 14, and a pressing surface 24 is provided at the lower end of each leg 30. However, this is not limited to this, and as long as a pair of pressing portions 20 extending in opposite longitudinal directions relative to the central portion 26 is provided, a single leg 30 may be provided in the central portion of the pressing plate portion 14 in each pressing portion 20 or in any one of the pressing portions 20.

For example, in this embodiment, the outer surface of the annular or arch-shaped base portion 12 is described as being provided with a hammered pattern formed during forging, but the present invention is not limited to this. For example, an irregular pattern PN such as a matte finish may be formed after the base portion 12 is completed, separate from the forging process during the manufacturing stage, which can improve the appearance and/or sound quality.

For example, in this embodiment, the ligature 10 for a single reed woodwind instrument, which is composed of the base portion 12, the pressure plate portion 14, and the fastening screw portion 16, has been described as using one type of pressure plate portion 14, but the present invention is not limited to this. As long as the base portion 12 and the fastening screw portion 16 are common and have a clearance hole portion 18 through which the fastening screw portion 16 passes, different types of pressure plate portions 14 may be prepared and selected according to the type of reed R and the desired sound quality. In this case, to replace the pressure plate portion 14, it is sufficient to loosen the fastening screw portion 16 while the base portion 12 is attached to the mouthpiece MP. Alternatively, as a combination of the base portion 12 and the pressing plate portion 14, the annular base portion 12 of the first embodiment, the arch-shaped base portion 12 of the second embodiment, or a base portion 12 having an uneven irregular pattern PN may be prepared, and combined with a pressing plate portion 14 of the desired shape to change the design and sound quality.

1 is a perspective view of a woodwind ligature 10 for a single reed according to a first embodiment of the present invention; FIG. 1 is a cross-sectional view of a woodwind ligature 10 for a single reed according to a first embodiment of the present invention. 1 is a perspective view of an annular base portion 12 of a woodwind ligature 10 for a single reed according to a first embodiment of the present invention. FIG. 1 is a perspective view of a pressing plate portion 14 of a woodwind instrument ligature 10 for a single reed according to a first embodiment of the present invention. FIG. 1 is a perspective view of a fastening screw portion 16 of a woodwind instrument ligature 10 for a single reed according to a first embodiment of the present invention. FIG. 1 is a perspective view of a protrusion 41 of a woodwind instrument ligature 10 for a single reed according to a first embodiment of the present invention. FIG. 1 is a perspective view of an elastic ring of a woodwind instrument ligature 10 for a single reed according to a first embodiment of the present invention. FIG. 1 is a side view of a woodwind ligature 10 for a single reed according to a first embodiment of the present invention. FIG. 1, but showing a woodwind ligature 10 for a single reed according to a second embodiment of the present invention. 2 of a woodwind ligature 10 for a single reed according to a second embodiment of the present invention. FIG. 8 of a woodwind ligature 10 for a single reed according to a second embodiment of the present invention. 9 of a woodwind ligature 10 for a single reed according to a third embodiment of the present invention. 1 is a modified example of the base portion 12 of the woodwind instrument ligature 10 for a single reed according to the first embodiment of the present invention. 1 is an oblique view showing a shank ring provided on a mouthpiece MP of a woodwind instrument ligature 10 for a single reed according to a first embodiment of the present invention. FIG. 1, but showing a woodwind ligature 10 for a single reed according to a third embodiment of the present invention. 1 is a bottom view of the pressing plate portion 14 of the single-reed woodwind instrument ligature 10 according to the first embodiment of the present invention. FIG.

MP Mouthpiece
O Tip Opening
P Peak
TP Tip
F Facing
T table surface
R Lead
D: The distance in the longitudinal direction between a pair of pressing parts
E Edge part
SR Skin
PN Irregular pattern l1 Height l2 of solid cylindrical portion 62 Length of shank portion 54 10 Ligature for woodwind instrument for single reed 12 Base portion 14 Pressing plate portion 16 Fastening screw portion 17 Elastic ring 18 Clearance hole portion 19 Opening 20 Pair of pressing portions 22 Screw hole portion 24 Pressing surface 26 Central portion 28 End portion 30 Leg portion 31 Annular protrusion portion 32 Lower end 34 Back surface 36 Recess 37 Annular bottom surface 38 Front surface 40 Convex portion 41 Projecting flange portion 43 Top surface 44 Outer periphery surface 46 Multi-faceted portion 48 Longitudinal edge portion 50 Convex portion 52 Long groove 54 Shank portion 56 Head portion 57 Threaded portion 58 Nut portion 60 End portion 62 Solid cylindrical portion 64 Bottom surface

Claims (6)

the mouthpiece has a base portion that is fixed to the mouthpiece and spans the width direction of the reed provided along the table surface of the mouthpiece, a press plate portion that presses the reed against the table surface of the mouthpiece, and a fastening screw portion that screws into the base portion, the press plate portion has a clearance hole portion that penetrates in the thickness direction and at least one press portion that extends obliquely downward from the clearance hole portion, the base portion has a screw hole portion into which the fastening screw portion can be screwed, the press plate portion is located above the base portion at the position where the base portion of the mouthpiece is provided, and is provided along the extension direction of the table surface,
A ligature for a single reed woodwind instrument, characterized in that the fastening screw portion passes through the clearance hole portion and is tightened against the screw hole portion, so that the pressing portion is pressed against the upper surface of the reed in a point contact or line contact manner, thereby making it possible to press and fix the reed against the mouthpiece. the pressing portion is composed of a pair of pressing portions extending in opposite directions with the clearance hole between them, the pressing plate portion is located above the base portion at a position where the base portion of the mouthpiece is provided, and is provided along the extension direction of the table surface so as to straddle the width of the base portion from above, and the pressing plate portion is capable of pressing the reed against the mouthpiece via the pair of pressing portions,
the pressing plate portion has a central portion in which the clearance hole is provided and which is longer than the width of the base portion, the pair of pressing portions each have a leg portion extending downward from a corresponding end portion of the central portion, and a pressing surface is provided at the lower end of the leg portion such that the pressing portion can press against an upper surface of the lead in a point contact or line contact manner,
2. The ligature for a single reed for a woodwind instrument according to claim 1, wherein each of the pair of pressing portions has a pair of the legs, each of the legs extending diagonally downward within the width direction of the reed so as to move away from each other in the width direction of the reed. a base portion that is fixed to the mouthpiece and spans the width direction of the reed that is provided along the table surface of the mouthpiece, a press plate portion that presses the reed against the table surface of the mouthpiece, and a fastening screw portion that screws into the base portion, the press plate portion has a clearance hole portion that passes through in the thickness direction and at least one press portion extending from the clearance hole portion, the base portion has a screw hole portion into which the fastening screw portion can be screwed, the press plate portion is located above the base portion at a position where the base portion of the mouthpiece is provided and is provided along the extension direction of the table surface, the fastening screw portion passes through the clearance hole portion and is fastened to the screw hole portion, thereby enabling the press plate portion to press the reed against the mouthpiece via the press portion,
The base portion is formed in an annular shape covering the outer peripheral surface of the mouthpiece, and by tightening the fastening screw portion against the base portion, the base portion is pressed against an edge portion of the reed in the width direction or against a portion of the mouthpiece in the diametrical direction,
The annular base portion is made of pure silver, and an irregular pattern consisting of polyhedral portions, each of which is flat or curved, is formed in a ring shape on the outer peripheral side surface, and adjacent polyhedral portions are provided in an uneven shape so as not to be contained within the same cylindrical surface concentric with the mouthpiece, and each of the polyhedral portions forms a polygon on the curved surface, and adjacent polyhedral portions share the sides of the polygon. a base portion that is fixed to the mouthpiece and spans the width direction of the reed that is provided along the table surface of the mouthpiece, a press plate portion that presses the reed against the table surface of the mouthpiece, and a fastening screw portion that screws into the base portion, the press plate portion has a clearance hole portion that passes through in the thickness direction and at least one press portion extending from the clearance hole portion, the base portion has a screw hole portion into which the fastening screw portion can be screwed, the press plate portion is located above the base portion at a position where the base portion of the mouthpiece is provided and is provided along the extension direction of the table surface, the fastening screw portion passes through the clearance hole portion and is fastened to the screw hole portion, thereby enabling the press plate portion to press the reed against the mouthpiece via the press portion,
A ligature for a single reed woodwind instrument, characterized in that the fastening screw portion is a nut portion that is fixed to the pressing plate and screws into an upwardly extending male thread portion. the rubber mouthpiece has a base portion that straddles the width direction of a reed that is provided along the table surface of the rubber mouthpiece and is fixed to the rubber mouthpiece, a press plate portion that presses the reed against the table surface of the rubber mouthpiece, and a tightening screw portion that screws into the base portion, the press plate portion has a clearance hole portion that penetrates in the thickness direction and at least one press portion extending from the clearance hole portion, the base portion has a screw hole portion into which the tightening screw portion can be screwed, the press plate portion is located above the base portion at a position where the base portion of the rubber mouthpiece is provided and is provided along the extension direction of the table surface, the tightening screw portion passes through the clearance hole portion and is tightened against the screw hole portion, allowing the press plate portion to press the reed against the rubber mouthpiece via the press portion,
The pressing portion is composed of a pair of pressing portions extending in opposite directions with the clearance hole between them, and the pressing plate portion is located above the base portion at a position where the base portion of the rubber mouthpiece is provided, and is provided along the extension direction of the table surface so as to straddle the width of the base portion from above, so that the pressing plate portion can press the reed against the rubber mouthpiece via the pair of pressing portions,
A ligature for a single reed for a woodwind instrument, characterized in that each of the opposing edges of the base portion has a convex portion extending at a downward angle toward the other, and a long groove is provided on the outer peripheral surface of the rubber mouthpiece near the lower table surface, into which the convex portion can fit, and when the convex portion of the base portion fits into the long groove, a space is formed between the base portion and the table surface of the rubber mouthpiece, so that the portion between the opposing edges has an arch-shaped cross-section with a smaller radius than the arc of the rubber mouthpiece that is constantly formed in the extension direction of the edges. A facing surface is provided from the end of the table surface on the side of the mouthpiece held in the mouth towards the mouthpiece, the table surface is inclined downward towards the end of the mouthpiece on the side of the mouthpiece held in the mouth, while the facing surface is inclined upward from the end of the mouthpiece on the side of the mouthpiece, and a boundary between the table surface and the facing surface forms a bottom of a recess.
The long groove extends to the end of the mouthpiece on the instrument body connection side, while the end of the mouthpiece on the mouthpiece side extends from the bottom of the recess toward the end of the mouthpiece on the mouthpiece side. A ligature for a woodwind instrument for a single reed as described in claim 5.

Images