Reed and plastic sheet

Abstract

Various timbres are achieved by a reed formed from a plant material. According to one embodiment, provided is a reed for an aerophone, comprising a plurality of plastic sheets laminated in a direction perpendicular to the longitudinal direction of the reed, the elastic modulus of at least one of the plurality of plastic sheets in the longitudinal direction is greater than the elastic modulus in the direction perpendicular to both the stacking direction and the longitudinal direction.

Description

Technical Field

[0001] The utility model relates to a reed and a plastic sheet of a wind instrument. Background Art

[0002] The reed installed in the mouthpiece of a wind instrument is generally formed of a plant material called a stem. In recent years, a reed formed of a resin material has also been developed (for example, Patent Document 1).

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: (Japanese) Patent Publication No. 2001-075556 Utility Model Content

[0006] Technical problems to be solved by the utility model

[0007] Reeds formed from plant materials (hereinafter referred to as plant-derived reeds) have different physical properties from reeds formed from resin materials (hereinafter referred to as resin-derived reeds). Specifically, plant-derived reeds have the following characteristics: at their front end, the rigidity in the lateral direction roughly orthogonal to the extension direction (longitudinal direction) of the reed body is relatively low compared to the rigidity in the longitudinal direction, and the elastic modulus in the lateral direction is lower than that in the longitudinal direction and is easy to bend. Due to such anisotropy of rigidity, plant-derived reeds can achieve various timbres. On the other hand, resin-derived reeds are different from plant-derived reeds, and longitudinal and lateral rigidities are not anisotropic. Therefore, resin-derived reeds cannot reproduce the timbre of plant-derived reeds. It is expected that the pronunciation of resin-derived reeds will be close to the pronunciation of plant-derived reeds and various timbres achieved by resin-derived reeds.

[0008] It is difficult to impart desired anisotropy of rigidity to a resin reed produced by cutting out or injection molding from a resin material.

[0009] One of the purposes of the present invention is to achieve various timbres by using a reed formed from materials other than plant materials.

[0010] Technical solutions for solving technical problems

[0011] According to one embodiment of the present disclosure, a reed is provided for a wind instrument, comprising a plurality of plastic sheets stacked in a direction perpendicular to the long side direction of the reed, wherein at least one of the plurality of plastic sheets has an elastic modulus in the long side direction that is greater than an elastic modulus in a direction perpendicular to both the stacking direction and the long side direction.

[0012] Beneficial effects

[0013] According to one embodiment of the present disclosure, various tones can be realized by the reed formed of a resin material. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a diagram showing an injection portion according to one embodiment.

[0015] Figure 2 It is a figure which shows the reed and the mouthpiece of one embodiment.

[0016] Figure 3 This is an enlarged view of the tail of the reed according to one embodiment as viewed from the long side direction.

[0017] Figure 4 This is a schematic diagram showing a laminate including a plurality of plastic sheets according to one embodiment.

[0018] Figure 5 It is along Figure 4 An example of a cross-sectional view of a laminate of plastic sheets A1-A2 in FIG.

[0019] Figure 6 This is a flowchart showing an example of a method for manufacturing a reed according to an embodiment.

[0020] Figure 7 It is a figure for demonstrating the manufacturing process of the reed of one embodiment.

[0021] Figure 8 It is a figure for demonstrating the manufacturing process of the reed of one embodiment.

[0022] Fig. 9 It is a figure for demonstrating the manufacturing process of the reed of one embodiment.

[0023] Fig.10 This is an enlarged view of the tail of the reed according to another embodiment as viewed from the long side direction.

[0024] Fig.11 This is a schematic diagram showing a laminate including a plurality of plastic sheets according to another embodiment.

[0025] Description of Reference Numerals

[0026] 1: blowing part; 10, 10A: reed; 20: plastic sheet; 30: mouthpiece; 80: tie ring; 101: base material part; 103: inclined part; 151: plane part; 157: tail part; 200, 200A: laminated body; 210: plate. DETAILED DESCRIPTION

[0027] Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The embodiment shown below is an example, and the present invention should not be construed as being limited to these embodiments. In the drawings referred to in the present embodiment, the same parts or parts having the same functions are marked with the same reference numerals or similar reference numerals (only reference numerals such as A, B are added after the numbers), and there are cases where their repeated descriptions are omitted. For the drawings, there are cases where the dimensional ratios are different from the actual ratios in order to make the description clear, and a part of the structure is omitted from the drawings and schematically described.

[0028] The blowing part in one embodiment is, for example, a blowing part of a single reed used in a saxophone, and includes a reed. The reed is formed of a resin material.

[0029] [First embodiment]

[0030] (Reed structure)

[0031] Figure 1 1 is a diagram showing an injection unit 1 according to a first embodiment of the present disclosure. Figure 1 , an example of a state where the blowing portion 1 is viewed from the side is shown. Figure 2 It is a figure which shows the reed 10 and the mouthpiece 30 of this embodiment.

[0032] like Figure 1 As shown, the blowing part 1 includes a reed 10, a mouthpiece 30 and a collar 80. The collar 80 is a component for fixing the reed 10 and the mouthpiece 30.

[0033] like Figure 2 As shown, the mouthpiece 30 includes a platform 301, a side rail 303 and a side rail 300. The two side rails 303 extend from the platform 301. The side rail 300 extends from the two side rails 303. The side rail 300 is configured at the end of the side rail 303.

[0034] The reed 10 includes a base portion 101 and a slope portion 103. Figure 2 As shown, the base part 101 includes a plane part 151, a back surface 153, and a tail part 157. The plane part 151 is arranged on at least one surface of the base part 101. The back surface 153 is a surface on the side opposite to the plane part 151. In this example, the back surface 153 corresponds to at least a part of the plane that contacts the platform 301 when the nozzle 30 is mounted. The tail part 157 is an end of the base part 101 located on the side opposite to the inclined surface part 103.

[0035] The slope 103 extends from the base 101 on the side opposite to the tail 157. That is, the slope 103 is disposed at one end of the reed 10 in the longitudinal direction D1. The slope 103 has a tip 155 on the side opposite to the base 101, and its thickness gradually decreases toward the tip 155.

[0036] The reed 10 is formed of a resin material and includes a long side and a short side. The long side direction D1 and the short side direction D2 of the reed 10 are perpendicular to each other. The elastic modulus of the long side direction D1 of the reed 10 is relatively larger than the elastic modulus of the short side direction D2. The elastic modulus of the long side direction D1 of the reed 10 is greater than 1.1 times and less than 2.0 times the elastic modulus of the short side direction D2 of the reed 10. In other words, compared with the rigidity of the short side direction D2 of the reed 10, the rigidity of the long side direction D1 of the reed 10 is relatively higher.

[0037] Figure 3 Observed from the long side direction D1 Figure 2 FIG. 1 is an enlarged view of the tail 157 of the reed 10. Figure 3 As shown, the reed 10 includes a plurality of plastic sheets 20. The reed 10 is composed of a stacked body formed by stacking a plurality of plastic sheets 20. The plurality of plastic sheets 20 are stacked along a thickness direction D3 of the reed 10 perpendicular to both the long side direction D1 and the short side direction D2 of the reed 10. That is, in the present embodiment, the stacking direction of the plurality of plastic sheets 20 is consistent with the thickness direction D3 of the reed 10.

[0038] Figure 4 2 is a schematic diagram showing the side of a laminate 200 including a plurality of plastic sheets 20. The laminate 200 includes about 5 or more and about 200 or less plastic sheets 20 stacked on each other. The plastic sheet 20 may be an LCP (Liquid Crystal Polymer) sheet having anisotropy of rigidity, but is not limited thereto. The plastic sheet 20 may be a resin sheet having anisotropy of rigidity such as PC (polycarbonate), PP (polypropylene), ABS (Acrylonitrile-butadiene-styrene), TPI (thermoplastic polyimide), PEI (polyetherimide), etc., or a resin sheet that can be easily made anisotropic in rigidity. The thickness of the plastic sheet 20 is not limited, but is usually 5 μm or more and 5 mm or less, preferably 10 μm or more and 1 mm or less, and more preferably 20 μm or more and 200 μm or less. Here, the thickness of the plastic sheet 20 is the thickness along the stacking direction of the plastic sheets 20 in the stacked body 200 .

[0039] The laminate 200 including the plurality of plastic sheets 20 may include structures other than the plastic sheets 20. The laminate 200 may include any layer between two adjacent plastic sheets 20. Although not shown, for example, the laminate 200 may include an adhesive layer between two adjacent plastic sheets 20. Furthermore, the laminate 200 may include a sheet made of another type of resin different from the plurality of plastic sheets 20.

[0040] Among the multiple plastic sheets 20 constituting the reed 10, at least one plastic sheet 20 has an extension direction and a non-extension direction. Both the extension direction and the non-extension direction are perpendicular to the thickness direction D3 of the reed 10, that is, the stacking direction of the multiple plastic sheets 20, and the extension direction and the non-extension direction are perpendicular to each other. The elastic modulus of the plastic sheet 20 in the extension direction is relatively larger than the elastic modulus of the plastic sheet 20 in the non-extension direction. In other words, the rigidity of the plastic sheet 20 in the extension direction is relatively higher than the rigidity in the non-extension direction. In the plastic sheet 20, the elastic modulus in the extension direction is not less than 1.1 times and not more than 2.0 times the elastic modulus in the non-extension direction.

[0041] For example, in Figure 4 In the illustrated plastic sheets 20 constituting the laminated body 200, the long side direction D1 of the reed 10 coincides with the extension direction of the plastic sheet 20, and the short side direction D2 of the reed 10 coincides with the non-extension direction of the plastic sheet 20. When the reed 10 is cut out from the laminated body 200, the reed 10 is cut out from the laminated body 200 in such a manner that the extension direction of each plastic sheet 20 coincides with the long side direction D1 of the reed 10, and the non-extension direction coincides with the short side direction D2 of the reed 10.

[0042] The spring piece 10 is cut out from the laminated body 200 by cutting the laminated body 200. Figure 3 As shown, in the case where the thickness direction D3 of the reed 10 coincides with the stacking direction of the plurality of plastic sheets 20 constituting the reed 10, the plate-shaped reed 10 is cut out from the stack 200 in such a manner that the long side and the short side of the reed 10 are located in a direction perpendicular to the stacking direction of the plurality of plastic sheets 20 in the stack 200. In this case, the elastic modulus of the long side direction D1 of the reed 10 is greater than the elastic modulus of the short side direction D2. In other words, the rigidity of the long side direction D1 of the reed 10 is greater than the rigidity of the short side direction D2. Depending on the size of the plastic sheet 20, a plurality of reeds 10 can be cut out from one stack 200.

[0043] Figure 5 Yes Figure 4 The laminated body 200 shown is a cross-sectional view cut along the line A1 - A2 with a plane defined by the short side direction D2 and the thickness direction D3 of the spring leaf 10 . Figure 5 1 is a cross-sectional view viewed from the long side direction D1 of the spring leaf 10. Figure 5As shown, the plastic sheet 20 includes a first layer 201 and a second layer 203. The second layer 203 is adjacent to the first layer 201 in the stacking direction of the plurality of plastic sheets 20 (the thickness direction D3 of the reed sheet 10). The anisotropy of the elastic modulus of the first layer 201 of the plastic sheet 20 is different from the anisotropy of the elastic modulus of the second layer 203. For example, the anisotropy may be greater in the elastic modulus of the second layer 203 than in the anisotropy of the elastic modulus of the first layer 201. Alternatively, conversely, the anisotropy may be greater in the elastic modulus of the first layer 201 than in the anisotropy of the elastic modulus of the second layer 203. A stacked body 200 is formed by stacking a plurality of such plastic sheets 20, and in at least a portion of the stacked body 200, the first layer 201 and the second layer 203 are alternately present along the stacking direction of the plastic sheets 20.

[0044] When two or more of the plurality of plastic sheets 20 constituting the spring 10 have anisotropic rigidity, the plastic sheets 20 may be stacked so that the anisotropy of rigidity is aligned in a direction that is relatively strong. Thus, a stacked body 200 having anisotropic rigidity can be formed.

[0045] When adjusting the anisotropy of the rigidity of the laminate 200, the plurality of plastic sheets 20 may be stacked in a manner that does not make the anisotropy of the rigidity uniform in a direction that is relatively strong when stacking the plurality of plastic sheets 20. Furthermore, by interposing other components between the plurality of plastic sheets 20, the anisotropy of the rigidity in the laminate 200 can be adjusted. Furthermore, by making the thickness of the plastic sheet 20 thinner and increasing the number of stacked plastic sheets 20 in the laminate 200, the ratio of the first layer 201 or the second layer 203 having relatively large anisotropy of rigidity in the laminate 200 can be adjusted, and the anisotropy of the rigidity in the laminate 200 can be adjusted.

[0046] In this way, by stacking a plurality of plastic sheets 20 having anisotropy of rigidity, a laminate 200 having anisotropy of rigidity is formed. The reed 10 cut out from the laminate 200 has the same anisotropy of rigidity as the laminate 200. In other words, the reed 10 can be given the same anisotropy of rigidity as the anisotropy of rigidity of the plant-derived reed. Therefore, the reed 10 can achieve the same timbre as the plant-derived reed.

[0047] Furthermore, the anisotropy of the rigidity of the reed 10 is achieved not only by the surface of the reed 10 but also by the plurality of plastic sheets 20 constituting the reed 10. Therefore, even if the surface of the reed 10 is subjected to surface treatment and cut in order to form the chamfer 103 or the like after the reed 10 is cut out from the laminate 200, the anisotropy of the rigidity of the reed 10 can be maintained.

[0048] (Manufacturing method)

[0049] Figure 6 This is a flowchart showing an example of a method for manufacturing the reed 10 according to the present embodiment. Figures 7 to 9 The diagram is for explaining the manufacturing process of the reed 10 .

[0050] First, if Figure 6 and Figure 7 As shown, a plurality of plastic sheets 20 having anisotropy of rigidity are prepared (S601). For example, about 5 or more and about 200 or less plastic sheets 20 are prepared. For each plastic sheet 20, the elastic modulus in the stretching direction is greater than the elastic modulus in the non-stretching direction. Here, the elastic modulus in the stretching direction of the plastic sheet 20 is 1.1 or more and 2.0 times less than the elastic modulus in the non-stretching direction.

[0051] The structure of the plastic sheet 20 is as shown in FIG. Figure 5 As described above, the first layer 201 and the second layer 203 adjacent to the first layer 201 are included. The anisotropy of the elastic modulus of the first layer 201 is different from the anisotropy of the elastic modulus of the second layer 203. The second layer 203 is adjacent to the first layer 201 in the direction in which the plurality of plastic sheets 20 are stacked.

[0052] Then, if Figure 6 and Figure 8 As shown, a plurality of plastic sheets 20 are stacked in a direction perpendicular to both the stretching direction and the non-stretching direction to form a stacked body 200 (S603). The stacking direction of the plurality of plastic sheets 20 is consistent with the thickness direction D3 of the reed 10. At this time, the plurality of plastic sheets 20 can be stacked in a manner that the anisotropy of the rigidity of each of the plurality of plastic sheets 20 is consistent. Specifically, the plurality of plastic sheets 20 can be stacked in a manner that the anisotropy of the rigidity of each of the plurality of plastic sheets 20 is consistent in a relatively strong direction.

[0053] Furthermore, in order to adjust the anisotropy of the rigidity of the laminate 200, when stacking the plurality of plastic sheets 20, the plurality of plastic sheets 20 may be stacked in a manner that does not make the anisotropy of the rigidity uniform in a direction that is relatively strong. The elastic modulus in the long-side direction of the laminate 200 in which the plurality of plastic sheets 20 are stacked is 1.1 to 2.0 times the elastic modulus in the short-side direction.

[0054] It should be noted that, although not shown, the laminate 200 may include a component between two adjacent plastic sheets 20 among the plurality of plastic sheets 20. The component between the two plastic sheets 20 may be a sheet made of a resin other than the plastic sheet 20, an adhesive layer, or the like.

[0055] The plurality of plastic sheets 20 may be bonded to each other by compression bonding. The temperature, pressure, pressing time and other conditions for compression bonding the plurality of plastic sheets 20 are appropriately set according to the type of resin used in the plastic sheets 20. In addition, the plurality of plastic sheets 20 may be bonded to each other by an adhesive present between two adjacent plastic sheets 20.

[0056] Then, if Figure 6 and Fig. 9 As shown in FIG. 6 , the plate 210 is cut out from the stacked body 200 by cutting (S605). At this time, the plate 210 is cut out from the stacked body 200 in such a manner that the long side direction of the plate 210 coincides with the long side direction of the stacked body 200 and the short side direction of the plate 210 coincides with the short side direction of the stacked body 200. That is, the plate 210 is cut out in a direction perpendicular to the stacking direction in which the plurality of plastic sheets 20 are stacked in the stacked body 200. Therefore, the elastic modulus of the plate 210 in the long side direction is greater than the elastic modulus of the plate 210 in the short side direction.

[0057] The plate 210 cut out in step S605 becomes the reed 10. That is, the long side direction D1 of the reed 10 coincides with the long side direction of the plate 210, and the short side direction D2 of the reed 10 coincides with the short side direction of the plate 210. Although not shown, the surface of the plate 210 may be processed to form the inclined surface 103 of the reed 10. The above is the manufacturing method of the reed 10 of this embodiment.

[0058] [Second embodiment]

[0059] A reed 10A according to a second embodiment of the present disclosure will be described. Figure 2 The reed 10A is the same as the reed 10 of the first embodiment shown. Hereinafter, the points in which the reed 10A differs from the reed 10 of the first embodiment will be described.

[0060] Fig.10 This is an enlarged view of the tail portion 157A of the reed 10A as viewed from the long side direction D1 of the reed 10A. Fig.10 As shown, the reed 10A includes a plurality of plastic sheets 20. The reed 10A is different from the reed 10 and is composed of a stacked body formed by stacking a plurality of plastic sheets 20 along the short side direction D2 of the reed 10A. That is, in this embodiment, the short side direction D2 of the reed 10A is consistent with the stacking direction of the plurality of plastic sheets 20.

[0061] Fig.11 Schematic diagram showing a laminate 200A including a plurality of plastic sheets 20. The laminate 200A includes about 5 or more and about 200 or less plastic sheets 20 laminated on each other. The plastic sheets 20 constituting the laminate 200 in the first embodiment can be used.

[0062] The laminate 200A may include structures other than the plastic sheets 20. The laminate 200A may include any layer between two adjacent plastic sheets 20. Although not shown, for example, the laminate 200A may include an adhesive layer between two adjacent plastic sheets 20. Furthermore, the laminate 200A may include a sheet made of another type of resin than the plurality of plastic sheets 20.

[0063] The spring leaf 10A is manufactured by cutting the laminate 200A. Fig.10 As shown, the stacking direction of the plurality of plastic sheets 20 constituting the reed 10A is consistent with the short side direction D2 of the reed 10A. In this case, the plate-shaped reed 10A is cut out from the stack 200A along the stacking direction of the plurality of plastic sheets 20 in the stack 200A in a manner that the stacking direction of the plurality of plastic sheets 20 is consistent with the short side direction D2 of the reed 10A and the extending direction of the plastic sheets 20 is consistent with the long side direction D1 of the reed 10A. Therefore, for the plate-shaped reed 10A cut out from the stack 200A, the elastic modulus of the long side direction D1 of the reed 10A is greater than the elastic modulus of the short side direction D2. In other words, the rigidity of the long side direction D1 of the reed 10A is greater than the rigidity of the short side direction D2 of the reed 10A. Depending on the size of the plastic sheet 20, a plurality of reeds 10A can be cut out from one stack 200A.

[0064] The plurality of plastic sheets 20 constituting the spring piece 10A are respectively the same as the plastic sheets 20 in the first embodiment, and thus are not shown in the figure. The plastic sheet 20 includes a first layer 201 and a second layer 203 adjacent to the first layer 201 .

[0065] The anisotropy of the elastic modulus of the first layer 201 is different from the anisotropy of the elastic modulus of the second layer 203 .

[0066] The second layer 203 is adjacent to the first layer 201 in the stacking direction of the plurality of plastic sheets 20 .

[0067] For at least one of the plurality of plastic sheets 20 constituting the spring sheet 10A, the elastic modulus in the extension direction perpendicular to the stacking direction of the plastic sheet 20 is relatively larger than the elastic modulus in the non-extension direction perpendicular to the stacking direction. In other words, the rigidity in the extension direction of the plastic sheet 20 is relatively larger than the rigidity in the non-extension direction. In the plastic sheet 20, the elastic modulus in the extension direction is 1.1 to 2.0 times the elastic modulus in the non-extension direction.

[0068] For example, with Fig.11The elastic modulus of each plastic sheet 20 constituting the stacked body 200A in the stretching direction perpendicular to the stacking direction may be greater than the elastic modulus of the non-stretching direction perpendicular to both the stacking direction and the stretching direction. In this case, the stretching direction may be the long side direction D1 of the reed 10A, and the non-stretching direction may be the thickness direction D3 of the reed 10A.

[0069] In this way, by stacking a plurality of plastic sheets 20 having anisotropy of rigidity, a laminate 200A having anisotropy of rigidity is formed. The reed 10A cut out from the laminate 200A has the same anisotropy of rigidity as the laminate 200A. In other words, the reed 10A can be given the same anisotropy of rigidity as the anisotropy of rigidity of the plant-derived reed. Therefore, the reed 10A can achieve the same timbre as the plant-derived reed.

[0070] Furthermore, the anisotropy of the rigidity of the reed 10A is achieved not only by the surface of the reed 10A but also by the plurality of plastic sheets 20 constituting the reed 10A. Therefore, even if the reed 10A is subjected to surface treatment and the surface of the reed 10A is cut to form the inclined surface portion 103 or the like after the reed 10A is cut out from the laminate 200A, the anisotropy of the rigidity of the reed 10A can be maintained.

[0071] The manufacturing method of the reed 10A of the present embodiment is similar to the method of the reference 10A except for the stacking direction of the plurality of plastic sheets 20 and the cutting of the sheet from the stacked body 200A along the stacking direction of the plurality of plastic sheets 20 when the sheet to be the reed 10A is cut out. Figures 6 to 8 The manufacturing method of the reed 10 described above is the same, so the detailed description is omitted.

[0072] [Modifications]

[0073] The present disclosure is not limited to the above-mentioned embodiments, and includes various other variations. For example, the above-mentioned embodiments are described in detail to make the present disclosure easy to understand, and are not limited to having all the structures described. That is, part of the structure of each embodiment can be replaced with other structures or deleted. Below, a part of the variations is described. The variations shown below can be applied to any one of the first embodiment and the second embodiment described above.

[0074] (Variation 1)

[0075] The blowing part 1 disclosed in the present invention is not limited to the blowing part of the saxophone, as long as it is the blowing part of the wind instrument. The wind instrument can be a woodwind instrument. As a woodwind instrument, in addition to the saxophone, for example, a clarinet, an oboe, a bassoon (bassoon), etc. can also be cited. In addition, it can also be applied to folk instruments such as bagpipes and classical instruments such as shawm.

[0076] (Variation 2)

[0077] In the above embodiment, the reed is formed by stacking a plurality of plastic sheets 20 having anisotropic rigidity. Each of the plastic sheets 20 includes a first layer 201 and a second layer 203 having different elastic moduli (rigidity). However, the reed of the present disclosure is not limited thereto. For example, a stacked body including a plurality of plastic sheets may be formed by stacking a plurality of plastic sheets having uniform anisotropic rigidity.

[0078] (Variant 3)

[0079] In the above-mentioned embodiment, the plastic sheet can be replaced by a 3D printed layer obtained by a 3D printer. In this case, the 3D printed layer has rigid anisotropy like the plastic sheet, and the elastic modulus in the long side direction is greater than the elastic modulus in the short side direction. Specifically, the elastic modulus in the long side direction of the 3D printed layer is not less than 1.1 times and not more than 2.0 times the elastic modulus in the short side direction. In addition, the stacked bodies 200, 200A in the above-mentioned embodiment can be formed by a 3D printer. Moreover, a reed whose elastic modulus in the long side direction is greater than the elastic modulus in the short side direction can be manufactured by a 3D printer.

Claims

1. A reed for a wind instrument, characterized in that: comprising a plurality of plastic sheets stacked in a direction perpendicular to the long side direction of the reed, At least one of the plurality of plastic sheets has an elastic modulus in the longitudinal direction that is larger than an elastic modulus in a direction perpendicular to both the stacking direction and the longitudinal direction.

2. The reed according to claim 1, characterized in that: The elastic modulus of at least one of the plastic sheets in the long-side direction is 1.1 to 2.0 times the elastic modulus of at least one of the plastic sheets in the short-side direction.

3. The reed according to claim 1, characterized in that: The elastic modulus in the long-side direction is 1.1 to 2.0 times the elastic modulus in the short-side direction of the reed.

4. The reed according to claim 1, characterized in that: The at least one plastic sheet comprises a first layer and a second layer adjacent to the first layer in the stacking direction, The anisotropy of the elastic modulus of the first layer is different from the anisotropy of the elastic modulus of the second layer.

5. The reed according to claim 1, characterized in that: The stacking direction is the short side direction of the spring piece.

6. The reed according to claim 1, characterized in that: The stacking direction is a direction perpendicular to the long side direction and the short side direction of the spring piece.

7. A plastic sheet for a reed of a wind instrument, characterized in that: The reeds are stacked in a direction perpendicular to the long side direction of the reeds, The elastic modulus of the plastic sheet in the long-side direction is 1.1 to 2.0 times the elastic modulus of the plastic sheet in the short-side direction.

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