JPWO2010029914A1 - Badminton shuttlecock - Google Patents

Abstract

Provided is a badminton shuttlecock having flight characteristics and durability equivalent to a shuttlecock using waterfowl feathers. A plurality of artificial feathers including a wing main body (5) and a shaft (7) connected to the wing main body (5), arranged in an annular shape and fixed to the base main body so as to partially overlap An artificial shuttlecock provided with (3), comprising a screened string (13) for fixing the shafts (7) of the plurality of artificial feathers (3) to each other. And the edge part of the protrusion part (12) as a flexible member is arrange | positioned in at least one part of the surface which opposes the net string (13) of the said axis | shaft (7), and a net string ( 13) presses the end portion of the projecting portion (12), and the end portion of the projecting portion (12) is deformed so that the shaded string-like body (13) and the end portion of the projecting portion (12) are It is connected and fixed via an adhesive member.

Description

  The present invention relates to a badminton shuttlecock, and more particularly to a badminton shuttlecock using artificial feathers having flying characteristics and durability equivalent to a badminton shuttlecock using waterfowl feathers.

  Conventionally, as badminton shuttlecocks, there are known shuttlecocks that use waterfowl blades (natural shuttlecocks) and artificially manufactured blades made of nylon resin (artificial shuttlecocks). Yes. A natural shuttlecock is more expensive than a shuttlecock using artificial feathers because it takes time to obtain a certain quality of such natural feathers. Therefore, shuttlecocks using artificial blades of inexpensive and stable quality have been proposed (for example, JP-A-57-37464 (Patent Document 1) and JP-A-53-40335 (Patent Document 2). )reference).

  In Patent Document 1, an artificial feather for a shuttlecock in which a wing portion is formed of a nonwoven fabric and a wing shaft portion coupled to the wing portion is integrally formed by injection molding and an artificial shuttlecock using the artificial feather are disclosed. Yes. Patent Document 2 discloses an artificial feather for a shuttlecock in which a wing part and a wing shaft part using a high-strength fiber as a reinforcing material are joined with an adhesive.

JP 57-37464 A JP-A-53-40335

  However, in the artificial shuttlecock using the shuttlecock artificial feather disclosed in Patent Document 1 and Patent Document 2 described above, according to the experiment of the inventor, the connection portion between the wing portion and the wing shaft portion is actually used. However, it is inferior to a natural shuttlecock using waterfowl feathers in terms of durability. Further, in the artificial shuttlecock, the rigidity of the wing shaft portion is lower than that of the natural shuttlecock, and the deformation of the wing shaft portion is large. Therefore, as a fixing member that fixes the wing shaft portions of a plurality of artificial feathers for shuttlecocks constituting the artificial shuttlecock to each other, and an adhesive that bonds the wing shaft portion and the fixing member, the same as the natural shuttlecock However, it is difficult to securely bond and fix the shuttlecock artificial feather so that it can withstand continuous smashing with a racket. In addition, if the material of the wing shaft part is changed to a material with higher rigidity in order to improve the durability, the wing shaft part is easily broken when hit with a racket, and the durability is not improved. In addition, the flight performance is greatly different from that of a natural shuttlecock using waterfowl feathers.

  However, natural shuttlecocks that use waterfowl feathers have become increasingly difficult to obtain because they are increasingly difficult to obtain, and flight performance and durability have been improved using waterfowl feathers. There is a strong demand for an artificial shuttlecock using artificial feathers, which is equivalent to a natural shuttlecock.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a shuttlecock for badminton having flying characteristics and durability equivalent to a shuttlecock using waterfowl feathers. Is to provide.

  The badminton shuttlecock according to the present invention includes a hemispherical base body. The artificial shuttlecock includes a plurality of artificial feathers fixed to the base body so as to include a wing portion and a shaft connected to the wing portion, and are arranged in an annular shape and partially overlap. Furthermore, a fixing member that fixes the shafts of the plurality of artificial feathers to each other is provided. Then, the flexible member is arranged on at least a part of the surface of the shaft facing the fixing member, and the fixing member presses the flexible member to fix the flexible member in a deformed state. The member and the flexible member are connected and fixed via an adhesive member.

  Thus, when the flexible member is disposed on the shaft surface of the artificial feather, and the shafts of the plurality of artificial feathers are fixed with the fixing member, the flexible member disposed on the shaft surface of the artificial feather is It is pressed and deformed by the fixing member. When the flexible member is arranged on the shaft, the contact area between the shaft on which the flexible member is arranged and the fixing member is determined when an artificial feather in which the flexible member is not arranged on the shaft is used. Compared to larger. Further, since the flexible member is deformed by being pressed by the fixing member, the shape of the contact portion between the shaft on which the flexible member is arranged and the fixing member (specifically, the shape of the deformed flexible member) ) Is complicated. Since the adhesive member contacts the surface of the flexible member having such a complicated shape and the fixing member and the flexible member are connected and fixed, the adhesive strength between the fixing member and the flexible member is More improved. That is, the adhesive strength between the fixing member and the shaft of the artificial feather or the flexible member is increased as compared with the case where the artificial feather in which the flexible member is not disposed on the shaft is used. Therefore, in the artificial shuttlecock in which the flexible member is arranged, durability against continuous smashing with a racket can be greatly improved.

  The badminton shuttlecock according to the present invention includes a hemispherical base body. The artificial shuttlecock includes a plurality of artificial feathers fixed to the base body so as to include a wing portion and a shaft connected to the wing portion, and are arranged in an annular shape and partially overlap. Furthermore, a fixing member that fixes the shafts of the plurality of artificial feathers to each other is provided. A reinforcing member made of porous or fibrous material is disposed on at least a part of the surface of the shaft facing the fixing member. The fixing member and the reinforcing member are connected and fixed via an adhesive member, and at least a part of the adhesive member is impregnated in the reinforcing member.

  Thus, when fixing the shafts of a plurality of artificial feathers with a fixing member, the reinforcing member made of porous or fibrous material and the fixing member, which are arranged on the shaft surface of the artificial feather, are bonded via an adhesive member. Fix it. In this case, when the reinforcing member is disposed on the shaft, the contact area between the shaft and the fixing member becomes larger than when an artificial feather having the reinforcing member not disposed on the shaft is used. Furthermore, since the reinforcing member is made of porous or fibrous material, the adhesive member can be impregnated into the porous or fibrous material in this way. Therefore, the adhesive strength between the adhesive member and the reinforcing member is improved. For this reason, the adhesive strength between the shaft and the fixing member can be significantly improved as compared with the case where the reinforcing member described above is not disposed on the shaft surface.

  Even in the case of the artificial shuttlecock including the reinforcing member described above, it is more preferable that the fixing member is fixed in a deformed state by pressing the reinforcing member. In this way, the effect of the impregnation of the reinforcing member with the adhesive member, and the deformation of the reinforcing member complicates the shape of the contact portion between the reinforcing member and the fixing member (the shape of the reinforcing member). And a synergistic effect with the effect of improving the adhesive strength between the reinforcing member and the reinforcing member. Therefore, the adhesive strength between the shaft and the fixing member can be further improved.

  The badminton shuttlecock according to the present invention includes a hemispherical base body. The artificial shuttlecock includes a plurality of artificial feathers fixed to the base body so as to include a wing portion and a shaft connected to the wing portion, and are arranged in an annular shape and partially overlap. Furthermore, the fixing member which fixes the axis | shaft of several artificial feathers mutually is provided. And the flexible member is integrally formed with the said axis | shaft in at least one part of the surface facing the fixing member of the said axis | shaft. When the fixing member presses the flexible member, the fixing member and the flexible member are connected and fixed via the adhesive member in a state where the flexible member is deformed.

  As described above, the flexible member is formed integrally with the shaft surface of the artificial feather, and is formed on the shaft surface of the artificial feather when the shafts of the plurality of artificial feathers are fixed to each other by the fixing member. The flexible member is deformed by being pressed by the fixing member. By forming the flexible member on the shaft, the contact area between the shaft on which the flexible member is formed and the fixing member is not formed so that the flexible member protrudes from the surface of the shaft. It becomes larger than the case where the blade is used. Further, since the flexible member is deformed by being pressed by the fixing member, the shape of the contact portion between the shaft on which the flexible member is formed and the fixing member (specifically, the shape of the deformed flexible member). ) Is complicated. Since the adhesive member contacts the surface of the flexible member having such a complicated shape and the fixing member and the flexible member are connected and fixed, the adhesive strength between the fixing member and the flexible member is More improved. That is, the adhesive strength between the fixing member and the flexible member (the shaft of the artificial feather) is increased as compared with the case where the artificial feather in which the flexible member is not formed on the shaft is used. Therefore, in the artificial shuttlecock using the artificial feather in which the flexible member is formed, it is possible to greatly improve the durability against continuous smashing with a racket.

  In the badminton shuttlecock, the fixing member for fixing the shafts of the plurality of artificial feathers preferably includes a string-like body wound so as to connect the shafts of the plurality of artificial feathers. By using the string-like body, the shafts of the artificial feathers can be easily fixed.

  In the badminton shuttlecock, the fixing member may be made into FRP. Here, in many cases, the mass of the wing shaft portion of the feather in the artificial shuttlecock is larger than the wing shaft portion of the water bird blade in the natural shuttlecock. For this reason, in order not to affect the flight performance, it is preferable to use a lightweight and highly rigid material as the fixing member. Therefore, it is preferable that the fixing member (for example, the above-described string-like body) is made into FRP. In addition, it is more preferable that the fixing member includes a thermosetting resin. If it does in this way, while the operation | work which arrange | positions a fixing member to a shuttlecock can be performed easily, FRP of a fixing member can be easily performed.

  Carbon has been widely used as a material having high rigidity. However, if carbon is used for the fixing member of the badminton shuttlecock in the present invention, there is a possibility that a problem may occur in terms of impact resistance. In other words, the shuttlecock receives a very strong impact when it is struck, but if the above-mentioned carbon is applied to the fixing member, the fixing member may be damaged by such an impact. Furthermore, when used as a fixing member, for example, fibrous carbon is formed into a thread (the carbon fiber is processed into a stranded wire), and the thread made of the carbon fiber is wound around the wing shaft portion of the blade or deformed into a predetermined shape When performing such an operation, since the yarn is easily cut, there is a problem that it is difficult to perform the above operation. Therefore, the fixing member preferably includes, for example, a yarn made of glass or aramid fiber. The glass or aramid fiber described above exhibits better properties (high impact resistance) than the above-mentioned carbon from the viewpoint of impact resistance, and is also processed into a thread shape and wound around the wing shaft (making a warp thread). Even if it does, it does not cut easily. In this way, a lightweight and highly rigid fixing member can be realized, a fixing member exhibiting high impact resistance can be realized, and an operation of using the yarn as a warp yarn can be easily performed. In particular, when an aramid fiber is used as a fixing member, a fixing member having high impact resistance can be realized.

  It is preferable that the badminton shuttlecock further includes a reinforcing fixing member that is connected to the fixing member and is arranged so as to go around the outer peripheral surfaces of the plurality of artificial feathers arranged in an annular shape. In this way, the shafts of a plurality of artificial feathers can be more firmly fixed.

  The badminton shuttlecock preferably further includes a covering member that covers the outer peripheral surface of the fixing member. Since the fixing member can be reinforced by arranging the covering member, the durability of the badminton shuttlecock can be further improved.

  ADVANTAGE OF THE INVENTION According to this invention, the shuttlecock for badminton using the artificial feather | wing which has a flight characteristic and durability equivalent to a natural shuttlecock is realizable.

It is a schematic diagram which shows the shuttlecock according to Embodiment 1 of this invention. It is a plane schematic diagram which shows embodiment of the artificial feather for shuttlecocks according to this invention which comprises the shuttlecock shown in FIG. It is a cross-sectional schematic diagram in line segment III-III of FIG. It is a cross-sectional schematic diagram in line segment IV-IV of FIG. It is a cross-sectional schematic diagram in the line segment VV of FIG. It is a cross-sectional schematic diagram in line segment VI-VI of FIG. It is a photograph which shows the external appearance of the lower end part of the wing shaft part of the artificial feather for shuttlecocks shown in FIG. It is a photograph which shows the external appearance of the center part of the wing shaft part of the artificial feather for shuttlecocks shown in FIG. It is a photograph which shows the external appearance of the front-end | tip part of the wing shaft part of the artificial feather for shuttlecocks shown in FIG. It is a flowchart for demonstrating the manufacturing method of the artificial feather shown in FIG. It is a flowchart for demonstrating the manufacturing method of the shuttlecock shown in FIG. It is a schematic diagram for demonstrating the intermediate process in the manufacturing method of the artificial feather shown in FIG. It is a cross-sectional schematic diagram in line segment XIII-XIII of FIG. It is a cross-sectional schematic diagram in line segment XIV-XIV of FIG. It is a cross-sectional schematic diagram in line segment XV-XV of FIG. It is a flowchart explaining in detail an assembly process (S200). It is the schematic which shows the state by which a mesh string-like body is fixed with the flexible member which comprises an artificial feather. It is an enlarged photograph for showing the state of the principal part “XVIII” shown in FIG. 17 in detail. It is the schematic which portrayed in detail the state of the shade for the shaded string-like body shown in the photograph of FIG. 18 to fix the artificial feather. It is a cross-sectional schematic diagram in the base side of the axis | shaft of an artificial feather | wing. It is a cross-sectional schematic diagram which shows the state which the shading string-like body pressed the base side of the axis | shaft of the artificial feather | wing. It is a schematic diagram which shows the form which looked at the shuttlecock of FIG. 1 according to Embodiment 1 of this invention from the front-end | tip part side of the axis | shaft of several artificial feathers. FIG. 10 is a schematic plan view showing a modification of the embodiment of the artificial feather for a shuttlecock according to the present invention in which the flexible member is arranged up to the end on the base side of the shaft. It is a plane schematic diagram which shows the other modification of the artificial feather | wing which comprises a shuttlecock. It is a plane schematic diagram which shows the other modification of the artificial feather | wing which comprises a shuttlecock. It is a plane schematic diagram which shows the other modification of the artificial feather | wing which comprises a shuttlecock. It is a plane schematic diagram which shows the other modification of the artificial feather | wing which comprises a shuttlecock. It is a plane schematic diagram which shows the other modification of the artificial feather | wing which comprises a shuttlecock. It is a plane schematic diagram which shows the other modification of the artificial feather | wing which comprises a shuttlecock. It is a plane schematic diagram which shows the other modification of the artificial feather | wing which comprises a shuttlecock. It is a plane schematic diagram which shows the other modification of the artificial feather | wing which comprises a shuttlecock. It is a plane schematic diagram which shows the other modification of the artificial feather | wing which comprises a shuttlecock. It is a cross-sectional schematic diagram in line segment XXXIII-XXXIII of FIG. It is a perspective schematic diagram which shows the modification of embodiment of the shuttlecock according to this invention. It is the isometric view schematic diagram seen from the base main body side of the shuttlecock shown in FIG. FIG. 36 is a schematic plan view showing a modification of the embodiment of the artificial feather for a shuttlecock according to the present invention, which constitutes the shuttlecock shown in FIGS. 34 and 35. It is a plane schematic diagram which shows the other modification of the artificial feather | wing which comprises a shuttlecock. It is a plane schematic diagram which shows the other modification of the artificial feather | wing which comprises a shuttlecock. It is a plane schematic diagram which shows the other modification of the artificial feather | wing which comprises a shuttlecock. It is a plane schematic diagram which shows the other modification of the artificial feather | wing which comprises a shuttlecock. It is a plane schematic diagram which shows the other modification of the artificial feather | wing which comprises a shuttlecock. It is a plane schematic diagram which shows the other modification of the artificial feather | wing which comprises a shuttlecock. It is a plane schematic diagram which shows the other modification of the artificial feather | wing which comprises a shuttlecock. It is a plane schematic diagram which shows the other modification of the artificial feather | wing which comprises a shuttlecock. It is a flowchart explaining in detail from another viewpoint about the assembly process (S200) of FIG. It is a schematic diagram which shows the fixing member of the shuttlecock according to Embodiment 2 of this invention. It is a schematic diagram which shows the shuttlecock which is a modification of Embodiment 2 of this invention. It is a schematic diagram which shows the fixing member of the shuttlecock according to Embodiment 3 of this invention. It is a schematic diagram which shows the form of the overburden part which is a fixing member of the shuttlecock according to Embodiment 4 of this invention. In the shuttlecock according to Embodiment 5 of this invention, it is the schematic which shows the state by which a mesh string is fixed with the flexible member which comprises an artificial feather. It is a cross-sectional schematic diagram which shows the state which the shading string-like body pressed the base side of the axis | shaft of the artificial feather shown in FIG. It is a flowchart for demonstrating the manufacturing method of the artificial feather | wing shown in FIG. It is a flowchart for demonstrating the formation process of the axis | shaft included in the structural material preparation process (S110) shown in FIG. It is a cross-sectional schematic diagram which shows the state which the shading string-like body pressed the base side of the axis | shaft of the modification of the artificial feather | wing shown in FIG.

  Next, embodiments and examples of the present invention will be described with reference to the drawings. In the following drawings, the same or corresponding parts are denoted by the same reference numerals, and description thereof will not be repeated.

(Embodiment 1)
With reference to FIGS. 1-9, embodiment of the shuttlecock and artificial feather for shuttlecocks according to this invention is described.

  Referring to FIG. 1, a shuttlecock 1 according to the present invention includes a hemispherical base body (tip member), and a plurality of artificial feathers 3 for shuttlecocks connected to the flat surface of the base body. It consists of a screened string-like body 13 (string-like member) as a fixing member for fixing the artificial feather 3 to each other. The base body is made of cork, for example. A plurality (for example, 16 pieces) of artificial feathers 3 are arranged in an annular shape on the flat surface of the base body. The plurality of artificial feathers 3 are arranged such that the distance between them increases as the distance from the base body increases (the inner diameter of the cylindrical portion formed by the plurality of artificial feathers 3 increases as the distance from the base body increases). ing. The shaded string-like body 13 is arranged so as to be entangled with the axes of the plurality of artificial feathers 3 as will be described later. The shaded string 13 is made into FRP by impregnating and curing a string (made of glass or aramid fiber) with a resin (for example, thermosetting resin).

  Referring to FIGS. 2 to 9, the artificial feather 3 constituting the shuttlecock 1 shown in FIG. 1 includes a wing body 5 and a shaft 7 connected to the wing body 5. The shaft 7 includes a wing shaft portion 8 disposed so as to protrude from the wing body portion 5, and a fixed shaft portion 10 connected to the wing body portion 5 at a substantially central portion of the wing body portion 5. The wing shaft portion 8 and the fixed shaft portion 10 are arranged so as to extend on the same line and constitute one continuous shaft 7.

  The wing body 5 is connected to a protrusion 12 that is held in a state where a part of the wing shaft 8 is embedded in the wing shaft 8. The wing body portion 5 and the protruding portion 12 constitute one sheet-like member 9. The protruding portion 12 is wider than the width of the wing shaft portion 8. That is, the width of the protruding portion 12 in the direction perpendicular to the extending direction of the wing shaft portion 8 is wider than the width of the wing shaft portion 8 in the direction. As a result, on the side of the wing shaft portion 8, the end portion of the protruding portion 12 is arranged along the wing shaft portion 8 with a substantially constant width. And the edge part of the protrusion part 12 exposed from the side part of the wing shaft part 8 acts as a flexible member or a reinforcing member for improving the connection strength with the screen string 13 as will be described later. To do.

  As shown in FIG. 3, the shaft 7 extends from the root (the right end in FIG. 3 or the end opposite to the side connected to the fixed shaft 10 in the wing shaft 8) to the tip (the left end in FIG. 3). Or the diameter of the fixed shaft portion 10 gradually decreases toward the end of the fixed shaft portion 10 opposite to the side connected to the blade shaft portion 8. Moreover, as shown in FIGS. 4-6, the cross-sectional shape in the direction (perpendicular direction) which cross | intersects the extension direction of the axis | shaft 7 is a square shape, More specifically, it is a rhombus shape. The cross-sectional shape of the shaft 7 is not limited to the quadrangular shape as described above, and any shape can be adopted. For example, as the cross-sectional shape of the shaft 7, the length in the direction (vertical direction in FIG. 4) intersecting the extending direction of the sheet-like member 9 is in the extending direction (lateral direction in FIG. 4) of the sheet-like member 9. An elliptical shape that is longer than the length can also be employed.

  In the shaft 7, as shown in FIGS. 3, 4, and 7, the sheet-like member 9 is embedded in the shaft 7 on the base side of the shaft 7 (the sheet-like member 9 is inside the shaft 7. In FIG. 5, FIG. 6, FIG. 8, and FIG. 9, the sheet-like member 9 is pivoted toward the tip end side of the shaft 7. 7 is exposed (the sheet-like member 9 is in contact with and fixed to the surface of the shaft 7). As shown in FIGS. 4 and 5, a part of the sheet-like member 9 is exposed from the side portion of the shaft 7. The photographs shown in FIGS. 7 to 9 were taken using an optical microscope, and the magnification is 25 times.

  In addition, as shown in FIGS. 3 to 9, the sheet-like member 9 is arranged on the shaft 7 such that the sheet-like member 9 is embedded in the shaft 7 on the base side of the shaft 7. It is not limited to the case where the sheet-like member 9 is exposed on the surface of the shaft 7 on the side, and may take other forms. For example, the sheet-like member 9 is embedded inside the shaft 7 at the base side and the center of the shaft 7, while the sheet-like member 9 is exposed on the surface of the shaft 7 at the tip end side of the shaft 7. It may be. Alternatively, the sheet-like member 9 may be embedded in the shaft 7 in all the portions on the base side, the center portion, and the tip end side of the shaft 7.

  Next, a method for manufacturing the shuttlecock 1 and the artificial feather 3 for the shuttlecock shown in FIGS. 1 and 2 will be described with reference to FIGS.

First, with reference to FIG. 10, the manufacturing method of the artificial feather | wing 3 for shuttlecocks according to this invention is demonstrated. As shown in FIG. 10, in the method for manufacturing the artificial feather 3, first, the flexible member preparation step (S10) is performed. The flexible member prepared in this step (S10) corresponds to the sheet-like member 9 shown in FIG. 12, and has a planar shape as shown in FIG. 12 (a substantially square shape with rounded four corners). Prepare things. The thickness of the sheet-like member 9 as the flexible member can be appropriately selected in consideration of the air resistance and mass balance of the artificial feather 3 to be formed. Moreover, as a flexible member (sheet-like member 9), the nonwoven fabric which consists of chemical fibers, such as a polyester fiber and an acrylic fiber, can be used. For example, a nonwoven fabric having a basis weight of 10 g / m ² or more and 90 g / m ² or less can be used. Further, for example, a nonwoven fabric made of polyester fiber, having a basis weight of 20 g / m ^{2 to} 80 g / m ² and a thickness of 0.07 mm to 0.3 mm can be used. The nonwoven fabric made of polyester fiber preferably has a basis weight of 20 g / m ^{2 to} 60 g / m ² , a thickness of 0.08 mm to 0.28 mm, more preferably a basis weight of 30 g / m ^{2 to} 50 g / m ^2. In the following, a thickness of 0.09 mm or more and 0.25 mm or less may be used. Further, instead of the nonwoven fabric, natural fibers such as silk fabric and cotton, cellulose fibers (so-called paper), and those coated with resin or the like may be used. Furthermore, it can replace with a nonwoven fabric and can also use resin films (wall thickness: 50-100 micrometers), such as a polyamide resin film, a polyester resin film, and a PET film. Furthermore, what formed the coating layer on the surface of the arbitrary nonwoven fabrics mentioned above as a nonwoven fabric can be used. As a method for forming the coating layer, for example, a method of laminating a resin film or a resin foam sheet on a nonwoven fabric (coextrusion molding) can be used. Moreover, coating layers, such as a resin film, may be formed in the single side | surface of a nonwoven fabric, and may be formed in both surfaces. Further, the coating layer may be partially formed on one side or both sides. Furthermore, the resin foam sheet may be fixed to the nonwoven fabric surface using an adhesive or a pressure-sensitive adhesive.

  Next, the process (S20) which arrange | positions a flexible member inside a metal mold | die is implemented. In this step (S20), the sheet-like member 9 made of the nonwoven fabric prepared in the step (S10) described above is placed inside a mold for forming the shaft 7 using, for example, an injection molding method.

  Next, a mold setting step (S30) is performed. Specifically, the mold in which the nonwoven fabric is arranged is arranged in a state in which the resin constituting the shaft 7 can be injected, and the temperature condition of the mold is adjusted.

  Next, a resin injection step (S40) is performed. Specifically, resin is injected into the mold from a resin injection port provided in the mold. As a result, the shaft 7 as shown in FIG. 12 is formed in a state where it is in contact with and fixed to the sheet-like member 9 made of a nonwoven fabric inside the mold.

  Next, a post-processing step (S50) is performed. Specifically, the sheet-like member 9 to which the shaft 7 is connected and fixed is taken out from the inside of the mold. At this time, the cross sections of the sheet-like member 9 and the shaft 7 are as shown in FIGS. That is, the shaft 7 is connected to the sheet-like member 9 over almost the entire length thereof. As shown in FIG. 13, the sheet-like member 9 is embedded in the shaft 7 on the base side of the shaft 7 (the end portion on the lower side in FIG. 12). Further, the sheet-like member 9 extending to the side (left and right sides) of the shaft 7 shown in FIG. 13 is a protruding portion 12 made of a flexible member, for example, shown in FIGS.

  On the other hand, as shown in FIGS. 14 and 15, the sheet-like member 9 is exposed on the surface of the shaft 7 toward the tip end side (the upper end side in FIG. 12) of the shaft 7. On the tip side, as shown in FIGS. 14 and 15, the sheet-like member 9 is fixed to the surface of the shaft 7. Such a configuration can be realized by the shape of a groove for forming the shaft 7 inside the mold, the arrangement of a nonwoven fabric as the sheet-like member 9, and the like.

  In the post-processing step (S50), unnecessary portions of the sheet-like member 9 shown in FIG. 12 (portions other than the end portion of the protruding portion 12 extending outward from the side of the shaft 6 and the portion 6 to be the wing body portion) are removed. Cut and remove. As a result, the artificial feather 3 as shown in FIG. 2 can be obtained.

  Next, with reference to FIG. 11, the manufacturing method of the shuttlecock 1 shown in FIG. 1 is demonstrated. As shown in FIG. 11, a preparatory process (S100) is first implemented. In this preparation step (S100), constituent members of the shuttlecock 1 such as the base body (tip member) and the artificial feather 3 of the shuttlecock 1 are prepared. Any conventionally known method can be used as a method for manufacturing the base body. Moreover, as a manufacturing method of the artificial feather 3, the manufacturing method shown in FIG. 10 mentioned above can be used.

  Next, an assembly process (S200) is prepared. Referring to FIG. 16, in the assembly process (S200) of shuttlecock 1, first, a process (S21) of fixing artificial feathers to the base body is performed. Specifically, a plurality of the artificial feathers 3 described above are connected to the flat surface portion of the base body. For example, a hole for inserting the end of the shaft 7 of the artificial feather 3 is formed in the flat surface portion of the base body, and the end of the shaft 7 of the artificial feather 3 (the side on which the blade main body is located) is inserted into the hole. Insert the end on the opposite side. And the artificial feather | wing 3 is fixed to a base main body by supplying an adhesive agent etc. to the said hole. Note that an adhesive or the like may be applied to the end of the shaft 7 in advance, and the end of the shaft 7 may be inserted into the hole of the base body.

  Next, the process (S22) which connects an artificial feather | wing with a fixing member is implemented. Specifically, the artificial feather 3 is connected by a string-like body as a fixing member by sequentially winding the string-like body around a predetermined position on the shaft 7 of the artificial feather 3. Any conventionally known method can be used as the connection method (the winding method of the string-like body). At this time, the end of the projecting portion 12 acting as a flexible member extends on the side of the shaft 7. Then, by winding the string-like body around the shaft 7, the end portion of the protruding portion 12 is deformed by being pressed by the string-like body.

  And the process (S23) which fixes a fixing member and a flexible member is implemented. Specifically, an adhesive is applied to the portion where the string-like body is wound on the shaft 7. As a result, the plurality of artificial feathers 3 are fixed to each other by the string-like body. In order to increase the strength of the string-like body, the string-like body may be impregnated with a thermosetting resin. After impregnating the resin with the string in this manner, the resin is cured by heating, for example. As a result, an FRP member in which a string-like body is impregnated and cured as a fixing member can be obtained. In this way, the shuttlecock 1 shown in FIG. 1 can be manufactured.

  In addition, as a fixing member which fixes the some artificial feather 3 mutually, not only the above string-like bodies but arbitrary members, such as a ring-shaped member, may be used, for example. Moreover, as a material of the said fixing member, arbitrary materials, such as resin and a fiber, can be used, for example. For example, you may use the fixing member containing the thread | yarn which consists of glass or an aramid fiber mentioned later. For example, as shown in FIG. 1, it is preferable that the string-like member as the fixing member is provided in two or more stages in the extending direction of the shaft 7 of the artificial feather 3 (see FIG. 2).

  The method for fixing the artificial feather 3 using the fixing member described above will be described in more detail with reference to FIGS. However, although one artificial feather 3 is shown in FIG. 17, in the photograph of FIG. 18 and the schematic diagram of FIG. 19, two artificial feathers 3 are shown fixed with a string-like body. . As shown in FIGS. 17, 18, and 19, the fixing member used to connect the shafts 7 of the plurality of artificial feathers 3 is a string-like shape wound around the shafts 7 of the plurality of artificial feathers 3. It preferably includes a body. In particular, as shown in FIG. 19, the shaded string 13 fixes the plurality of artificial feathers 3 as a warp yarn by repeating a trajectory of A → B → C → D → E → F → G.

  Here, as shown in FIG. 18 and FIG. 19, a flexible member connected to the shaft 7 (blade shaft portion 8) using a screened string-like body 13 made of a single string-like body as a fixing member. Adjacent shafts 7 are connected to each other by binding the shafts 7 in a shaded manner so as to deform the projecting portions 12 that are members. Then, since the mesh string 13 presses the end of the protrusion 12 (the end extending from the side of the shaft 7), the end of the protrusion 12 is connected to the shaft 7 (see FIG. 17, 18, 19). It is deformed by receiving pressure toward the wing shaft 8). In other words, the contact area between the shaft 7 on which the end of the projecting portion 12 is arranged and the shaded string-like body 13 is determined by arranging the end of the projecting portion 12 on the side of the shaft 7. Compared to the case where the artificial feathers in which the end portions of 12 are not arranged on the shaft 7 are used. Further, since the end portion of the projecting portion 12 is deformed by being pressed by the netting string 13, the end 7 of the projecting portion 12 is in contact with the shaft 7 arranged on the side and the netting cord body 13. The shape of the part (specifically, the shape of the end of the deformed protruding portion 12) is complicated as described later. Since the adhesive adheres to the surface of the end of the projecting portion 12 having such a complicated shape, the screened string-like body 13 and the end of the projecting portion 12 are connected and fixed. The adhesive strength between the body 13 and the end of the protrusion 12 and the shaft 7 is improved. That is, the adhesive strength between the shaded string 13 and the shaft 7 of the artificial feather or the end of the protruding portion 12 is greater than that of using an artificial feather in which the end of the protruding portion 12 is not disposed on the shaft 7. Increase. Therefore, in the artificial shuttlecock in which the end portion of the projecting portion 12 is disposed on the side of the shaft 7, the durability against continuous smashing with the racket can be greatly improved.

  With reference to FIG. 20 and FIG. 21, the structure of the contact part of the axis | shaft 7 mentioned above and the net string-like body 13 is demonstrated in detail. 20 is basically the same as FIG. 4 which is a schematic cross-sectional view of the region including the base side (wing shaft portion 8) of the shaft 7 and the protruding portion 12 described above. 7 is shown for comparison with FIG. 21 showing a state in which the end portion of the protruding portion 12 (end portion of the sheet-like member 9) is deformed by being wound around. As shown in the schematic cross-sectional view of FIG. 20, the end of the sheet-like member 9 (projecting portion 12) extends from the side of the shaft 7 in a substantially horizontal direction before the mesh string 13 is wound around the shaft 7. In this state (from the side of the shaft 7, it extends in a direction substantially perpendicular to the side surface of the shaft 7). However, as shown in FIG. 21, when the protruding portion 12 of the sheet-like member 9 is pressed and deformed by the netting string 13, it extends in the direction along the extending direction of the two netting strings 13. The end of the sheet-like member 9 (projection 12) is deformed so as to be bent. As a result, the adhesive adheres to the surface of the end portion of the sheet-like member 9 having a complicated shape, and the screened string-like body 13 and the end portion of the sheet-like member 9 (protruding portion 12) are connected and fixed. Therefore, the adhesive strength between the screened string 13 and the end of the sheet-like member 9 and the shaft 7 is improved.

  In addition, in the cross-sectional schematic diagram of FIG. 21, the arrangement | positioning of the net string 13 with respect to the axis | shaft 7 is simplified and drawn. The actual arrangement of the screened string 13 when the shaft 7 of the artificial feather 3 is fixed by the screened string 13 as a warp is as shown in FIGS. 18 and 19 described above.

  From a different point of view, the above-described badminton shuttlecock 1 includes a hemispherical base body. The shuttlecock 1 includes a plurality of artificial feathers 3 fixed to the base body so as to be arranged in a ring and partially overlap. Each of the plurality of artificial feathers 3 includes a wing body part 5 as a wing part and a shaft 7 connected to the wing body part 5. Furthermore, the shuttlecock 1 includes a screened string 13 as a fixing member that fixes the shafts 7 of the plurality of artificial feathers 3 to each other. And the edge part of the sheet-like member 9 as a reinforcement member which consists of porous or a fiber is arrange | positioned in at least one part of the surface facing the netting string-like body 13 of the said shaft 7. The shaded string 13 and the end of the sheet-like member 9 are connected and fixed via an adhesive member (adhesive), and at least a part of the adhesive is impregnated into the end of the sheet-like member 9. Yes.

  As described above, when the shafts 7 of the plurality of artificial feathers 3 are fixed to each other by the shaded string-like body 13, the sheet-like member 9 made of porous or fibrous material disposed on the surface of the shaft 7 of the artificial feather 3. The end portion of the wire and the screened string-like body 13 are bonded and fixed via an adhesive member. In this case, since the end of the sheet-like member 9 is disposed on the shaft 7, the contact area between the shaft 7 and the shaded string-like body 13 is such that the end of the sheet-like member 9 is outside from the side of the shaft 7. It becomes larger than the case where the artificial feather which does not extend to is used. Furthermore, since the end portion of the sheet-like member 9 is made of porous or fibrous material, the end portion of the sheet-like member 9 can be impregnated with the adhesive member. Therefore, the adhesive strength between the adhesive member and the end of the sheet-like member 9 is improved. For this reason, the adhesive strength between the shaft 7 and the screened string-like body 13 can be significantly improved as compared with the case where the end portion of the sheet-like member 9 described above is not disposed on the surface of the shaft 7.

  Here, the wing shaft portion of the waterfowl blade in the natural shuttlecock is lightweight and has a large cross-sectional area and high rigidity. Therefore, when the natural shuttlecock is formed, a large contact area between the wing shaft portion and the shaded string-like body 13 as the fixing member can be secured, so that a strong adhesive strength can be ensured. On the other hand, the specific gravity of the wing shaft portion 8 of the artificial feather 3 in the artificial shuttlecock is, for example, about 1.2 when synthetic resin is used, which is larger than the specific gravity of the wing shaft portion of the waterfowl blade. Therefore, in order to make the artificial shuttlecock have the same mass as the natural shuttlecock, it is necessary to make the shaft 7 thinner than the wing shaft portion of the waterfowl blade. Then, since the shaft 7 is thin, it is difficult to make the structure of the shaft 7 foamed or hollow. In addition, when a highly rigid resin is used as the shaft 7, the shaft 7 is thin and may be broken by a strong hit.

  Further, when the waterfowl blades in the natural shuttlecock are used, the rigidity of the fixed part between the waterfowl blade shaft part and, for example, the string-like body as the fixing member, is large. . However, for the reasons described above, it is difficult to use a highly rigid resin as the shaft 7 in the artificial shuttlecock. Therefore, in the artificial shuttlecock, it is preferable to increase the rigidity of the warp yarn that constitutes the netting string 13 that is a fixing member.

  As described above, the specific gravity (mass) of the wing shaft portion 8 of the artificial feather 3 of the artificial shuttlecock is larger than that of the wing shaft portion of the waterfowl blade. Therefore, if the adhesive member for bonding the thread yarn or the screened string-like body 13 and the shaft 7 (wing shaft portion 8) becomes heavy, the mass of the entire shuttlecock 1 becomes larger than that of the natural shuttlecock. Then, the flight performance of the shuttlecock 1 may be significantly different from that of the natural shuttlecock.

  Therefore, it is preferable that the warp yarn as the string-like body 13 constituting the shuttlecock 1 having the wing shaft portion 8 heavier than the natural shuttlecock is lighter than the warp yarn constituting the natural shuttlecock. From the above, it is preferable to use the screened string-like body 13 made of a light and highly rigid thread as a fixing member constituting the shuttlecock 1. In order to satisfy the above conditions, it is preferable that the members constituting the shaded string-like body 13 are made into FRP. This is because the strength and rigidity of the string-like body 13 as a fixing member is improved by using FRP. In addition, a thermosetting resin is used as the resin to be impregnated into the string-like body 13 in order to make the mesh-like string 13 FRP (that is, the fixing member obtained by FRP of the string-like body 13 is made of a thermosetting resin. More preferably). In this way, the fixing member can be easily made into FRP by the thermosetting resin, for example, when a heating step is performed in the processing for fixing the screen string 13 to the shaft 7. For example, an epoxy resin or a phenol resin can be used as the thermosetting resin.

  It is preferable that the shaded string 13 includes a warp yarn made of, for example, an aramid fiber. The aramid fiber is particularly lightweight and has high strength among fibers that can be used to make the fixing member into FRP. Therefore, it is possible to realize a shaded string-like body 13 made of a warp yarn having a particularly light weight and high rigidity. Moreover, since the breakage of the artificial feather 3 and the like can be suppressed with high strength, the durability and life of the shuttlecock 1 can be improved. For example, one shaded string-like body 13 is formed by using aramid fibers having a standard of 400D as four twisted yarns. In addition, you may use the net string 13 which consists of the overhanging yarn which contains glass as a material instead of an aramid fiber.

  Consider, for example, the case where the shaft 7 of the artificial feather 3 is fixed using the above-described netting string-like body 13 made of four twisted aramid fibers having a standard of 400D. If the shaded string-like body 13 is arranged in two stages in the extending direction of the shaft 7 of the artificial feather 3, the mass thereof is about 0.16 g. After impregnating a total of 0.2 g of epoxy resin as a thermosetting resin into each of the two stages of the screened string-like body 13, the screened string-like body 13 is heated at 75 ° C. for 90 minutes. As a result, the epoxy resin is cured. The thermosetting resin can also be an adhesive member as will be described later. The mass of the FRP fixing member (the FRP member made of the screen string 13 and the cured resin) is 0.36 g in total. On the other hand, since the warp yarn constituting the natural shuttlecock is 0.11 g and the nitrocellulose as the adhesive member is 0.4 g, the total mass of the warp yarn and the adhesive member is 0.51 g. Therefore, the mass of the string-like member (fixed member made into FRP) of the shuttlecock 1 according to the present invention is approximately 30% lighter than the total mass of the warp yarn and the adhesive member constituting the natural shuttlecock. Can do.

  As shown in FIG. 18 and FIG. 19 described above, one shaded string 13 shown in FIG. 22 fixes a plurality of artificial feathers 3 in an annular shape using a warp thread. In this way, one shaded string 13 serving as a fixing member is wound so as to connect the shafts 7 of the plurality of artificial feathers 3.

  Referring to FIG. 23, the artificial feather 3 according to the present invention basically has the same configuration as the artificial feather 3 shown in FIG. 2, but the form on the root side of the shaft 7 is different. Specifically, in the artificial feather 3 shown in FIG. 23, the protruding portion 12 as the sheet-like member 9 is disposed up to the tip on the root side of the shaft 7 (wing shaft portion 8). Also with the protrusion 12 having such a configuration, the same effect as that of the protrusion 12 in the artificial feather 3 shown in FIG. 2 can be obtained.

A modification of the artificial feather 3 will be described with reference to FIGS.
Referring to FIG. 24, another modification of the artificial feather 3 basically has the same configuration as the artificial feather 3 shown in FIG. 2, but the planar shape of the protrusion 12 is different. Specifically, in the artificial feather 3 shown in FIG. 24, the protrusion 12 is not symmetrical with respect to the shaft 7, and the protrusion 12 on the left side of the shaft 7 is substantially orthogonal to the central axis of the blade shaft 8. The width of the projecting direction (the left-right direction in FIG. 24) is wide, and the width of the protruding portion 12 on the right side of the shaft 7 in the direction substantially perpendicular to the central axis of the wing shaft portion 8 is narrow. The same effect as that of the protrusion 12 in the artificial feather 3 shown in FIG. For example, the protrusion 12 on the right side of the shaft 7 may be widened in the left-right direction and the protrusion 12 on the left side of the shaft 7 may be narrowed in the left-right direction. In addition, it is preferable that the width in the left-right direction of the wider left and right protrusions 12 is 1.1 to 3 times the width in the left-right direction of the left or right narrow protrusion 12. The ratio is more preferably 1.2 times or more and 2 times or less.

  Referring to FIG. 25, another modification of artificial feather 3 basically has the same configuration as artificial feather 3 shown in FIG. 2, but the planar shape of protrusion 12 is different. Specifically, in the artificial feather 3 shown in FIG. 25, the convex portions 41 are provided in two places on the left and right ridge lines (outer circumferences) of the protruding portion 12 in a total of four locations. The wing body 5, the projecting portion 12, and the convex portion 41 are configured by a single sheet-like member 9. In this way, for example, as shown in FIG. 1, the projection 41 is pressed by the mesh string 13 that exists in two stages in the extending direction of the shaft 7 of the artificial feather 3. 13 and the sheet-like member 9 (including the protruding portion 12 and the protruding portion 41) can be further increased in contact area and adhesive strength.

  In addition, about the convex part 41 in the artificial feather 3 of FIG. 25, the height in the direction orthogonal to the central axis of the wing shaft part 8 (from the outer periphery of the sheet-like member 9 other than the convex part 41 in the left-right direction) The height of the convex portion 41 in the left-right direction at 25 can be, for example, more than 0 mm and 3 mm or less, more preferably 0.5 mm or more and 2.5 mm or less. Further, the width of the convex portion 41 in the direction along the central axis of the wing shaft portion 8 (the width of the convex portion 41 in the vertical direction in FIG. 25) exceeds, for example, 0 mm and is 2 mm or less, more preferably 0.5 mm or more and 1 .5 mm or less. And the width | variety (width in the up-down direction of FIG. 25) of the area | region between the 2 steps | paragraphs convex parts 41 of FIG. 25 shall be 10 mm or more and 20 mm or less, More preferably, it is 12 mm or more and 18 mm or less, More preferably, it is about 15 mm. it can. 25 has an arc shape on the outer periphery thereof, but the planar shape of the protrusion 41 has a side perpendicular to the central axis of the wing shaft 8 shown in FIG. It may be a quadrangular shape, other quadrangular shapes (for example, a trapezoidal shape, a parallelogram shape, a rhombus shape, etc.), a triangular shape, or a polygonal shape such as a pentagon or a hexagon.

  Referring to FIG. 26, another modification of the artificial feather 3 basically has the same configuration as the artificial feather 3 shown in FIG. 25, but the planar shape of the protrusion 12 is different. Specifically, in the artificial feather 3 shown in FIG. 26, the convex portions 41 shown in FIG. As shown in FIG. 26, the distance between the first stage and the second stage and the distance between the third stage and the fourth stage are made smaller than the distance between the second stage and the third stage. The region between the first and second ridges 41 and the region between the third and fourth ridges 41 are, for example, shown in FIG. The shaded string-like body 13 may be arranged so as to be pressed against the shaded string-like body 13 existing in two stages in the extending direction. Here, the width of the region between the first and second protrusions 41 (the width in the vertical direction in FIG. 26) is, for example, 1 mm to 3 mm, and more preferably 1.5 mm to 2.5 mm. be able to. Therefore, the mesh string 13 contacts the sheet-like member 9 at the region of the protruding portion 12 sandwiched between the two convex portions 41 and the convex portion 41. For this reason, since the contact area of the screen string-like body 13 and the sheet-like member 9 increases, the adhesive strength between the two can be further increased. In addition, the convex part 41 in FIG. 26 can take the same shape as the convex part 41 in FIG.

  Referring to FIG. 27, another modification of artificial feather 3 basically has the same configuration as artificial feather 3 shown in FIG. 2, but the planar shape of protrusion 12 is different. Specifically, in the artificial feather 3 shown in FIG. 27, the recess 42 is formed in two stages on the outer periphery on the left side of the protrusion 12. In this way, the concave portions 42 are pressed by the netting string-like bodies 13 existing in two stages in the extending direction of the shaft 7 of the artificial feather 3 as shown in FIG. 13 and the sheet-like member 9 (including the projecting portion 12 and the recessed portion 42) can be further increased in contact area and adhesive strength. Since the circumferential length of the recess 42 is longer than the length of the line segment connecting one end and multiple ends of the recess 42, the contact area between the shaded string 13 and the recess 42 is determined in a place where the recess 42 does not exist. It is because it becomes larger than the case where it presses with the strap-like body 13.

  The concave portion 42 in the artificial feather 3 in FIG. 27 has a depth in the direction orthogonal to the central axis of the wing shaft portion 8 (depth in the left-right direction in FIG. 27), for example, exceeds 0 mm and 3 mm or less, more preferably 0. It can be 5 mm or more and 2.5 mm or less. Further, the width of the recess 42 in the direction along the central axis of the wing shaft portion 8 (width in the vertical direction in FIG. 27) is, for example, more than 0 mm and 2 mm or less, more preferably 0.5 mm or more and 1.5 mm or less. Can do. And the width | variety (width in the up-down direction of FIG. 27) of the area | region between the 2 steps | paragraphs of recessed parts 42 of FIG. 27 can be 10 mm or more and 20 mm or less, More preferably, it is 12 mm or more and 18 mm or less, More preferably, it can be about 15 mm. . In addition, although the recessed part 42 in the artificial feather 3 of FIG. 27 has an arc shape on the outer periphery, the planar shape of the recessed part 42 has a side perpendicular to the central axis of the wing shaft part 8 shown in FIG. A square shape or other square shapes (for example, a trapezoidal shape, a parallelogram shape, a rhombus shape, a triangular shape, or a polygonal shape such as a pentagon or a hexagon) may be used.

  Referring to FIG. 28, another modification of the artificial feather 3 basically has the same configuration as the artificial feather 3 shown in FIG. 27, but the planar shape of the protrusion 12 is different. Specifically, in the artificial feather 3 shown in FIG. 28, the recesses 42 are provided in two stages on the left and right outer peripheries of the projecting part 12 in a total of four places. By doing so, the concave and dent portions 42 on both the left and right sides are pressed against the meshed string-like body 13, respectively, so that the meshed string-like body 13 and the sheet-like member 9 (including the projecting portion 12 and the recessed portion 42) are brought into contact. The area and adhesive strength can be further increased. In addition, the recessed part 42 in FIG. 28 can take the same shape as the recessed part 42 in FIG.

  Referring to FIG. 29, another modification of the artificial feather 3 basically has the same configuration as the artificial feather 3 shown in FIG. 2, but the planar shape of the wing shaft portion 8 is different. Specifically, in the artificial feather 3 shown in FIG. 29, unlike the artificial feather 3 shown in FIG. 28, recesses are formed on the left and right side portions of the wing shaft portion 8 instead of the protruding portion 12 (sheet-like member 9). 42 is formed in four places, two stages each. Also with the artificial feather 3 having such a configuration, the same effect as that of the artificial feather 3 shown in FIG. 28 can be obtained. In addition, the recessed part 42 in FIG. 29 can take the same shape as the recessed part 42 in FIG.

  Referring to FIG. 30, another modification of the artificial feather 3 basically has the same configuration as the artificial feather 3 shown in FIG. 25, but the planar shapes of the projecting portion 12 and the wing shaft portion 8 are different. ing. Specifically, in the artificial feather 3 shown in FIG. 30, on the left and right outer peripheries of the projecting portion 12 and on the left and right side portions of the wing shaft portion 8, so as to be substantially orthogonal to the central axis of the wing shaft portion 8. The convex portions 41 are formed in parallel. That is, the convex part 41 is formed in a total of eight places. Even with the artificial feather 3 having such a configuration, the same effect as that of the artificial feather 3 shown in FIG. 25 can be obtained. In addition, all the convex parts 41 in FIG. 30 can take the same shape as the convex part 41 in FIG.

  Referring to FIG. 31, another modification of the artificial feather 3 basically has the same configuration as the artificial feather 3 shown in FIG. 26, but the planar shapes of the projecting portion 12 and the wing shaft portion 8 are different. ing. Specifically, in the artificial feather 3 shown in FIG. 31, on the left and right outer peripheries of the projecting portion 12 and on the left and right side portions of the wing shaft portion 8, so as to be substantially orthogonal to the central axis of the wing shaft portion 8. The convex portions 41 are formed in parallel. That is, the convex part 41 is formed in 16 places in total. The effect similar to that of the artificial feather 3 shown in FIG. 26 can also be obtained by the artificial feather 3 having such a configuration. In addition, all the convex parts 41 in FIG. 31 can take the same shape as the convex part 41 in FIG.

  Referring to FIG. 32, another modification of artificial feather 3 basically has the same configuration as that of artificial feather 3 shown in FIG. However, all of the artificial feathers 3 described above including FIG. 2 are formed so that at least a part of the sheet-like member 9 is embedded in the shaft 7 using a mold. However, in the artificial feather 3 in FIG. 32, the wing body 5 and / or the protrusion 12 that is the sheet-like member 9 is fixed to the shaft 7 using an adhesive.

  As shown in the schematic cross-sectional view of FIG. 33, the wing body 5 and the protrusion 12 of the artificial feather 3 shown in FIG. 32 are later bonded to the shaft 7 via an adhesive 34. Here, as the adhesive 34, it is preferable to use an adhesive having such a strong adhesive force that it can sufficiently suppress peeling from the shaft 7 by continuous smashing with a racket. For example, it is preferable to use a rubber-based solvent-type adhesive (for example, GP clear manufactured by Konishi Co., Ltd.). The effect similar to that of the artificial feather 3 shown in FIG. 2 can be obtained by the artificial feather 3 having such a configuration. Not only FIG. 2 but all the artificial feathers 3 described above may be formed by retrofitting only the wing body part 5 and the projecting part 12 or the projecting part 12 in the same manner as the artificial feather 3 shown in FIG. Good.

  A modification of the embodiment of the shuttlecock and the artificial feather for the shuttlecock according to the present invention will be described with reference to FIGS. 34 to 36.

  Referring to FIGS. 34 and 35, shuttlecock 1 according to the present invention basically has the same configuration as shuttlecock 1 shown in FIG. 1, but the configuration of artificial feather 3 is partially different. Specifically, in the shuttlecock 1 shown in FIG. 34 and FIG. 35, one flap portion 31 that protrudes outward from the side surface of the wing shaft portion 8 (see FIG. 36) of the artificial feather 3 is formed. This is different from the shuttlecock 1 shown in FIG. The artificial feather 3 shown in FIG. 36 has basically the same configuration as the artificial feather 3 shown in FIG. 2, but a flap portion 31 having a triangular planar shape is formed. More specifically, the planar shape of the flap portion 31 includes a side extending in a direction substantially perpendicular to the central axis of the wing shaft portion 8 and a side obliquely intersecting the central axis of the wing shaft portion 8. It has a triangle shape. In addition, although the vertex (end part farthest from the surface of the wing shaft part 8) in the planar shape of the flap part 31 may be located on the wing body part 5 side as shown in FIG. 36, it is arranged at another position. It may be.

  In addition to the flap portion 31, the artificial feather 3 shown in FIG. 36 has an edge portion 32 formed on the side surface of the wing shaft portion 8. The edge portion 32 continues to both sides of the flap portion 31 and is disposed along the central axis of the wing shaft portion 8. Moreover, the edge part 32 is also formed in the side surface of the blade part 8 on the opposite side to the side in which the flap part 31 was formed. The edge portions 32 are each constituted by a part (end portion) of the sheet-like member 9. The width L2 of the edge portion 32 is substantially constant at any position in the direction along the central axis of the wing shaft portion 8 of the wing shaft portion 8. The width L2 can be set to, for example, more than 0 mm and 2 mm or less, more preferably 0.5 mm or more and 1 mm or less. Note that only the flap portion 31 may be formed without forming the edge portion 32. The wing body part 5, the flap part 31, and the edge part 32 are located on substantially the same plane. The widths of the edge portions 32 located on both sides of the wing shaft portion 8 are the same.

  The length L1 of the flap portion 31 in the direction along the central axis of the wing shaft portion 8 can be set to, for example, 5 mm to 15 mm, more preferably 7 mm to 12 mm, and still more preferably about 10 mm. As shown in FIG. 34 and FIG. 35, the flap portion 31 can be disposed between two stages of the shaded string-like body 13 as a fixing member for fixing the plurality of artificial feathers 3. It is preferable to set the size. That is, the length L1 of the flap portion 31 is preferably shorter than the distance between the two string members. In addition, a recess 42 is formed on the outer periphery of the protrusion 12 so as to wind the mesh string 13 so as to sandwich the flap 31 in the direction along the central axis of the wing shaft 8. The same effect as the shuttlecock 1 shown in FIG. 1 can be obtained also by the shuttlecock 1 using the artificial feather 3 having such a configuration. Furthermore, since the flap part 31 is formed in the artificial feather 3, the rotational performance of the shuttlecock 1 can be maintained.

  Further, the position of the flap portion 31 in the direction along the central axis of the wing shaft portion 8 can be arbitrarily determined, but preferably the flap portion 31 is in a region closer to the wing body portion 5 than the center of the wing shaft portion 8. Form. If it does in this way, when the shuttlecock 1 flies, possibility that the flap part 31 will be hidden in the shadow of the base main body of the shuttlecock 1 can be reduced. For this reason, the maintenance function of the rotation performance of the shuttlecock 1 by the flap part 31 can be exhibited reliably.

  Moreover, in the shuttlecock 1 shown in FIGS. 34 and 35, it is preferable that the flap portion 31 is disposed at a position that is visible outside the base body when viewed from the hemispherical base body side. In this way, when the shuttlecock 1 flies, air can be directly supplied to the flap portion 31 without being obstructed by the base body. For this reason, the rotation maintenance function of the shuttlecock 1 by the flap part 31 can be exhibited effectively.

  Further, in the shuttlecock 1 shown in FIGS. 34 and 35, in the plurality of artificial feathers 3 arranged in an annular shape (so as to surround the central axis of the wing shaft portion 8 passing through the base member), the wing shaft portion 8 It is preferable that the flap part 31 is formed in the side surface (side surface facing an inner peripheral side) of the side surface which goes to the central axis of the said wing shaft part 8 which passes a base member. If it does in this way, the rotation maintenance function of shuttlecock 1 can be exhibited more effectively.

A modification of the artificial feather 3 will be described with reference to FIGS. 37 to 44.
Referring to FIG. 37, another modification of artificial feather 3 basically has the same configuration as artificial feather 3 shown in FIG. 36, but the planar shape of flap portion 31 is different. Specifically, in the artificial feather 3 shown in FIG. 37, the planar shape of the flap portion 31 is a rectangular shape (square shape). With the flap portion 31 having such a shape, the same effect as that of the flap portion 31 in the artificial feather 3 shown in FIG. 36 can be obtained. The planar shape of the flap portion 31 may be a quadrangular shape having a side perpendicular to the central axis of the wing shaft portion 8 of the wing shaft portion 8 as shown in FIG. A trapezoidal shape, a parallelogram shape, a rhombus shape, etc.), or a polygonal shape such as a pentagon or a hexagon.

  Referring to FIG. 38, another modified example of artificial feather 3 basically has the same configuration as artificial feather 3 shown in FIG. 36, but the planar shape of flap portion 31 is different. Specifically, in the artificial feather 3 shown in FIG. 38, the outer periphery of the planar shape of the flap portion 31 is curved. The same effect as that of the flap 31 of the artificial feather 3 shown in FIG. In the flap portion 31 shown in FIG. 38, the outer peripheral portion of the central portion in the direction along the central axis of the wing shaft portion 8 of the wing shaft portion 8 is the farthest portion farthest from the center of the wing shaft portion 8. ing. However, depending on the required flight characteristics of the shuttlecock 1, the position of the furthest portion in the direction along the central axis of the wing shaft portion 8 from the center portion to the wing body 5 side or wing You may shift | deviate to the opposite side to the side in which the main-body part 5 is located.

  Referring to FIG. 39, another modification of the artificial feather 3 basically has the same configuration as the artificial feather 3 shown in FIG. 36, but the planar shape of the flap portion 31 is different. Specifically, in the artificial feather 3 shown in FIG. 39, the flap portion 31 has a rectangular shape over the entire length along the central axis of the wing shaft portion 8 from one side surface of the wing shaft portion 8. The flap portion 31 is formed. The width L3 of the flap portion 31 is substantially constant over the entire length of the wing shaft portion 8. In this way, the flap portion 31 can be formed over almost the entire length of the wing shaft portion 8, so that the flap portion 31 has a central axial direction of the wing shaft portion 8 of the wing shaft portion 8 as shown in FIG. The effect of generating the rotational force of the shuttlecock 1 by the flap portion 31 can be increased compared to the case where the flap portion 31 is formed only in the partial region. As shown in FIG. 39, the concave portion 42 formed in the flap portion 31 and the concave portion 42 formed in the edge portion 32 have different sizes. Specifically, the depth and width of the recess formed in the flap portion 31 are larger than the depth and width of the recess 42 formed in the edge portion 32 located on the opposite side.

  The width L3 of the flap portion 31 can be set to, for example, 1 mm to 3 mm, more preferably 1.5 mm to 2.5 mm. In addition, in the flap part 31 and the edge part 32, the said recessed part 42 is formed in the part to which the 2 steps | paragraphs of mesh string-like body 13 shown to FIG. 34 and FIG. 35 should be fixed.

  Referring to FIG. 40, another modified example of artificial feather 3 basically has the same configuration as that of artificial feather 3 shown in FIG. 36, but in addition to flap part 31, the flap of wing shaft part 8 is provided. The difference is that another flap portion 33 is formed on the side opposite to the side on which the portion 31 is formed. The planar shape of the flap part 33 is triangular. Further, the flap portion 33 is arranged such that the apex (the end portion located farthest from the wing shaft portion 8) in the triangular plan shape is opposite to the side where the wing body portion 5 is located. In other words, the apex of the flap portion 33 is located on the opposite side of the apex in the flap portion 31 and the central axis direction of the wing shaft portion 8 of the wing shaft portion 8. In this way, by providing the two flap portions 31 and 33, the effect of generating the rotational force of the shuttlecock 1 by the flap portions 31 and 33 can be increased. In addition, the recessed part 42 is formed so that the flap part 33 may be pinched | interposed.

  Referring to FIG. 41, another modified example of artificial feather 3 basically has the same configuration as artificial feather 3 shown in FIG. 40, but the shapes of flap portions 31 and 33 are different. That is, the planar shapes of the flap portions 31 and 33 of the artificial feather 3 shown in FIG. 41 are rectangular. As the planar shape of the flap portions 31 and 33, an arbitrary quadrangular shape can be used as in the case of the flap portion 31 shown in FIG. Even if it does in this way, the effect similar to the case where the artificial feather 3 shown in FIG. 40 is applied to the shuttlecock 1 can be acquired.

  Referring to FIG. 42, another modified example of artificial feather 3 basically has the same configuration as artificial feather 3 shown in FIG. 40, but the shapes of flap portions 31 and 33 are different. That is, the planar shape of the flap portions 31 and 33 of the artificial feather 3 shown in FIG. 41 has a curved outer periphery in the planar shape similar to the flap portion 31 shown in FIG. Further, the flap portion 31 has a relatively large area with respect to the flap portion 33. Even with such a configuration, the same effect as that obtained when the artificial feather 3 shown in FIG. 40 or the like is applied to the shuttlecock 1 can be obtained.

  Referring to FIG. 43, another modification of artificial feather 3 basically has the same configuration as artificial feather 3 shown in FIG. 40, but the shapes of flap portions 31 and 33 are different. That is, in the artificial feather 3 shown in FIG. 43, rectangular flap portions 31 and 33 are formed over the entire length along the central axis of the wing shaft portion 8 of the wing shaft portion 8. The widths of the flap portions 31 and 33 are substantially the same. Even if it does in this way, the effect similar to the case where the artificial feather 3 shown in FIG. 40 is applied to the shuttlecock 1 can be acquired. In addition, you may vary the width | variety of the flap parts 31 and 33 mutually.

  Referring to FIG. 44, another modification of the artificial feather 3 basically has the same configuration as the artificial feather 3 shown in FIG. 36, but the planar shape of the wing body 5 is the artificial feather of FIG. 3 is different. That is, in the artificial feather 3 shown in FIG. 44, the wing body 5 is asymmetrical about the fixing shaft 10. In this way, by controlling the shape of the wing body 5, the degree of freedom in controlling the flight characteristics of the shuttlecock 1 when applied to the shuttlecock 1 can be increased. In addition, in the structure which made the shape of the wing | blade main-body part 5 asymmetrical like FIG. 44, it is good also as a structure which does not form the flap parts 31 and 33. FIG. Or in the structure which made the shape of the wing | blade main-body part 5 left-right asymmetrical, you may form the flap parts 31 and 33 and the edge part 32 of arbitrary shapes as shown in FIGS.

  Moreover, in the modification of the artificial feather 3 mentioned above, although the structure which formed the edge part 32 in addition to the flap part 31 and / or the flap part 33 was shown, only the flap part 31 and / or the flap part 33 are formed, It is good also as a structure which does not form the edge part 32. FIG. In this case, the shaded string 13 is disposed so as to overlap the end portions of the flap portion 31 and / or the flap portion 33.

  In addition, in the shuttlecock 1 using the artificial feather 3 having the flap portions 31 and 33, a region other than the portion where the two-stage mesh string 13 is fixed to the wing shaft portion 8 (for example, the two-stage mesh string) Flap portions 31 and 33 are arranged in a region between the strips 13 or a region other than a region sandwiched between the two-stage shade string 13. In this way, the occurrence of the problem that the shape of the flap portion 31 is deformed by forming the flap portion 31 so as to overlap the portion where the screen string 13 is fixed to the wing shaft portion 8 is suppressed. it can.

  Further, in the shuttlecock 1, the flap portions 31 and 33 are solidified by impregnating the flap portions 31 and 33 with a resin such as an adhesive or by coating the surfaces of the flap portions 31 and 33 with a resin or a film. May be. In this case, it is possible to maintain the shapes of the flap portions 31 and 33 for a long time when the shuttlecock 1 is used. Further, the edge portion 32 may be solidified in the same manner.

  Moreover, in the said shuttlecock 1, although the flap parts 31 and 33 are formed in the artificial feather 3 in one place or two places, you may form the flap parts 31 and 33 more than three places depending on a required flight characteristic. By forming the flap portions 31 and 33 at a plurality of locations in this way, the degree of freedom in adjusting the flight characteristics of the shuttlecock 1 can be further increased.

  Moreover, in the said shuttlecock 1, it is good also considering the formation position of the flap parts 31 and 33 in the center axis direction of the wing shaft part 8 as a mutually different position. Further, one or a plurality of flap portions 31 may be formed only on one side surface of the wing shaft portion 8, or one or a plurality of flap portions 31, 33 may be formed on both side surfaces of the wing shaft portion 8, respectively. May be. Further, in the shuttlecock 1, the size and shape of the flap portion 31 and the flap portion 33 may be different from each other.

  Furthermore, as shown in each artificial feather 3 in FIGS. 36 to 44, for example, it is preferable to have a concave portion 42 similar to the artificial feather 3 in FIG. 28 described above. If it does in this way, like the artificial feather 3 of FIG. 28, the contact area and adhesive strength of the screen string-like body 13 and the sheet-like member 9 can be increased. The size of the recess 42 in the artificial feather 3 in FIG. 36, such as the height (horizontal direction in the figure) and width (vertical direction in the figure), is preferably the same as that of the artificial feather 3 in FIG. You may change arbitrarily according to width L2. Moreover, although the structure provided with the recessed part 42 similar to the artificial feather | wing 3 of FIG. 28 is disclosed in FIGS. 36-44, this is an illustration to the last. That is, not only the recessed part 42 similar to the artificial feather 3 of FIG. 28 but in order to increase a contact area and adhesive strength, it is set as the structure which combined the arbitrary recessed part 42 or convex part 41 shown in FIGS. Can do.

  As described above, in the shuttlecock 1 using the artificial feather 3 having the flap portions 31 and 33, the region other than the portion where the two-stage screen string 13 is fixed to the wing shaft portion 8 (for example, two-step The flap portions 31 and 33 are arranged in a region between the screened string-like bodies 13 or a region other than a region sandwiched between the two-stage screened string-like bodies 13. In this way, the occurrence of the problem that the shape of the flap portion 31 is deformed by forming the flap portion 31 so as to overlap the portion where the screen string 13 is fixed to the wing shaft portion 8 is suppressed. it can. Therefore, in the case where the artificial feather 3 including the flap portions 31 and 33 includes the convex portion 41 or the concave portion 42, as shown in FIGS. 36 to 44, the flap is formed in the region sandwiched between the two-step convex portion 41 or the concave portion 42. It is preferable to provide the convex part 41 or the recessed part 42 so that the parts 31 and 33 may be arrange | positioned. In addition, when the shaded string-like body 13 is arranged in three or more stages or only one stage, it is preferable to determine the arrangement and number of the convex portions 41 or the concave portions 42 according to the number of stages of the string-like body 13. . Further, in the artificial feather 3 described above, only one type of the convex portion 41 or the concave portion 42 is formed in one artificial feather 3, but both the convex portion 41 and the concave portion 42 are formed in one artificial feather 3. It may be formed. At this time, the convex portion 41 and the concave portion 42 may be formed at the same position in the central axis direction of the shaft 7, or the convex portion 41 is formed only on one side surface side as viewed from the shaft 7, and the concave portion 42 is formed on the other side surface side. It may be formed. Moreover, you may form both the convex part 41 and the recessed part 42 on the same side seeing from the axis | shaft 7. FIG.

  Referring to FIG. 45, in the assembly process (S200) of shuttlecock 1, first, a process (S25) of fixing artificial feathers to the base body is performed. Specifically, this is the same as the step (S21) in FIG. 16, and is a step of connecting a plurality of the artificial feathers 3 described above to the flat surface portion of the base body. Next, the process (S26) which connects an artificial feather | wing with a fixing member is implemented. This step (S26) is basically the same as the step (S22) in FIG. As described above, for example, a nonwoven fabric made of a chemical fiber such as polyester fiber or acrylic fiber can be used for the end portion of the protruding portion 12 of the artificial feather 3, but here it is a flexible member and is porous. Or it becomes the reinforcement member which consists of fibers.

  When the adhesive member is applied to the protruding portion 12 that is a flexible member as in the step (S22) described above, at least a part of the applied adhesive member is impregnated into the protruding portion 12. This is because the protrusion 12 is made of a porous or fibrous material, so that the adhesive member can easily enter the tissue gap (hole or fiber gap).

  Then, an impregnation / adhesion step (S27) is performed. Specifically, in the same manner as in the step (S23) shown in FIG. 16, the adhesive member is applied to the contact portion between the end portion of the projecting portion 12 that is the reinforcing member and the mesh member 13 that is the fixing member, for example. To do. Then, the adhesive member is impregnated into the inside from the surface of the end portion of the protruding portion 12. In other words, the adhesive member is interposed between the netting string 13 and the end portion of the projecting portion 12 in the contact portion, and is present inside the projecting portion 12. Thereafter, the contact portion is heated. Then, the adhesive member is solidified in a state where it exists on both the surface and the inside of the protruding portion 12 and in contact with the netting string 13. Therefore, since the adhesive member exists on both the surface and the inside of the protruding portion 12, the shaded string 13 and the end portion of the protruding portion 12 can be firmly bonded. Moreover, since the material constituting the string-like member (shaded string-like body 13) that is a fixing member is a fiber such as an aramid fiber, at least a part of the applied adhesive member is placed inside the shaded-string-like body 13. Can also be impregnated. Furthermore, as described above, if the netting string 13 which is a fixing member is impregnated with, for example, an epoxy resin which is a thermosetting resin, the resin can be used as an adhesive member. Due to these synergistic effects, the protruding portion 12 and the shaded string-like body 13 can be bonded very firmly.

  As described above, the adhesive strength can be improved by the adhesive member impregnated in the protrusions 12 and the nets 13. Further, as described above, if the mesh string 13 presses the protruding portion 12 that is a reinforcing member, the reinforcing member is deformed, and therefore the contact area between the protruding portion 12 and the mesh string 13 increases. . For this reason, since the adhesive strength of the protrusion part 12 and the netting string-like body 13 is further strengthened, the durability of the shuttlecock 1 is further improved.

  The flowchart of FIG. 45 and the flowchart of FIG. 16 both describe the same process, which is the assembly process of the shuttlecock 1, but are different in point of focus. In FIG. 16, specifically, the mesh string 13 is pressed by the end of the projecting portion 12 that is a flexible member and deformed, so that the mesh string 13 and the projecting portion 12 contact each other. The shape of the protrusion 12 in the portion is complicated, and as a result, the adhesive strength between the shaded string 13 and the protrusion 12 is increased. On the other hand, in FIG. 45, the thermosetting resin impregnated to make the FRP of the adhesive member and / or the shaded string-like body 13 supplied to the surface of the protruding portion 12 is arranged on both surfaces by heating. In addition, the description has been given from the viewpoint that both of them adhere to each other by impregnating the inside.

(Embodiment 2)
Referring to FIG. 46, shuttlecock 1 according to the second embodiment of the present invention basically has the same configuration as shuttlecock 1 shown in FIG. However, the shuttlecock 1 shown in FIG. 46 is connected to the netting string 13 which is a fixing member, and the reinforcing fixing member is arranged so as to go around the outer peripheral surface of the plurality of artificial feathers 3 arranged in an annular shape. Further, a looping string-like body 14 is provided. In this respect, the shuttlecock 1 shown in FIG. 46 is different from the shuttlecock 1 shown in FIG.

  In FIG. 46, the orbiting string-like body 14 is shaded on the tip end side (wing body part 5 side) of the shaft 7 of the artificial feather 3 in the mesh string 13 existing in two stages in the extending direction of the shaft 7. It arrange | positions so that the string-shaped body 13 may be contacted. Therefore, as a whole, the fixing member has two stages as in the shuttlecock 1 of FIG.

  The above-described problem that the fixed portion of the screened string 13 is disengaged due to continuous smashing with the racket is particularly problematic in the screen of the two-stage screened string 13 on the tip end side of the shaft 7 of the artificial feather 3. It tends to occur in the string-like body 13. Therefore, as shown in FIG. 46, it is preferable that the orbiting string-like body 14 as the reinforcing fixing member is disposed so as to contact the netting string-like body 13 on the tip end side of the shaft 7 of the artificial feather 3. By doing so, the mesh string 13 on the tip end side of the shaft 7 of the artificial feather 3 is reinforced by the orbiting string 14 in contact therewith, and the fixing part of the mesh string 13 is released. It is possible to prevent problems from occurring.

  As the orbiting string-like body 14, one or a plurality of aramid fibers having a standard of 400D, for example, four twisted yarns when forming one string-like member constituting the shaded string-like body 13 are used. It is preferable. As described above, the looping string-like body 14 may be disposed so as to be in contact with and overlapped with the screened string-like body 13 on the distal end side of the shaft 7 of the artificial feather 3. Or you may arrange | position the surrounding string-like body 14 so that the outer periphery of the shaded string-like body 13 by the side of the front-end | tip part of the axis | shaft 7 of the artificial feather 3 may be contacted. That is, for example, aramid fibers constituting the looping string-like body 14 are wound so as to overlap along the outer periphery of the netting string-like body 13. For this reason, the orbiting string-like body 14 becomes a ring shape by orbiting the outer periphery of the ring formed by the shafts 7 of the artificial feathers 3 in the same manner as the netting string-like body 13. The shaft 7 can be reinforced. Therefore, the shaft 7 of the artificial feather 3 can be made difficult to break, and the breakage of the fixing portion of the screen string 13 can be suppressed.

  Further, the orbiting string-like body 14 is made into FRP with the same aramid fiber and resin as the shaded string-like body 13. A thermosetting resin can be used as the resin. For this reason, the thermosetting resin impregnated in the inside of the circular string-like body 14 is also applied to the end portion of the protruding portion 12 (see FIG. 2) of the artificial feather 3 as in the case of the above-described shaded string-like body 13. By impregnating, the adhesive strength between the protruding portion 12 and the looping string-like body 14 can be improved. Further, as described above, the braided string-like body 13 impregnated with the thermosetting resin and made into FRP and the circulating string-like body 14 impregnated with the thermosetting resin are fixed in contact with each other. For this reason, the thermosetting resin impregnated in the surrounding string-like body 14 acts as an adhesive member on the thermosetting resin impregnated in the mesh string-like body 13. Therefore, the adhesive strength between the shaded string-like body 13 and the looping string-like body 14 can be further improved.

  Moreover, when arrange | positioning the surrounding string-like body 14 in the shuttlecock 1, the shaded string-like body 13 is made into FRP previously, and has high rigidity. For this reason, the fiber which comprises the surrounding string-like body 14 can be wound so that the outer peripheral part of the artificial feather | wing 3 may circulate, giving a strong tension | tensile_strength. When winding the looping string-like body 14, it is preferable to fix the start point and the end point of the looping string-like body 14 so as to be hooked on the knot of the thread string 13. If it does in this way, the operation | work which winds the surrounding string-like body 14 can be performed easily.

  For example, an aramid fiber having a standard of 400D used as the circular string 14 causes the outer circumference of the ring formed by the shafts 7 of the plurality of artificial feathers 3 to be 3 to 5 rounds, more preferably 4 rounds. If it does in this way, sufficient intensity | strength can be maintained as a reinforcement member with respect to the net string-like body 13. FIG.

  Referring to FIG. 47, another modification of shuttlecock 1 basically has the same configuration as shuttlecock 1 shown in FIG. A third shaded string 13 is made to circulate along the hanging string 13. Even with the shuttlecock 1 having such a configuration, the same effect as that of the shuttlecock 1 shown in FIG. 46 can be obtained.

  The above-described second embodiment of the present invention is different from the first embodiment of the present invention only in the points described above. That is, the configuration, conditions, procedures, effects, and the like not described above for the second embodiment of the present invention are all the same as those of the first embodiment of the present invention.

(Embodiment 3)
Referring to FIG. 48, shuttlecock 1 according to the third embodiment of the present invention basically has the same configuration as shuttlecock 1 shown in FIG. However, the shaded string 13 is provided in three stages with respect to the extending direction of the shaft 7 of the plurality of artificial feathers 3. In this respect, the shuttlecock 1 shown in FIG. 48 is different from the shuttlecock 1 shown in FIG.

  Compared to the case where the mesh string 13 is arranged in two stages in the extending direction of the shaft 7 of the plurality of artificial feathers 3 as in the shuttlecock 1 shown in FIG. 1, the shuttlecock shown in FIG. 48. In the case where three stages are arranged as in FIG. 1, the strength and rigidity of the shuttlecock 1 can be further improved. As a result, the durability and life of the shuttlecock 1 can be further improved.

  The protrusions 41 or the recesses 42 provided on the protrusion 12 of the artificial feather 3 shown in FIGS. 25 to 31 are all made of string-like members such as the shaded string 13 of the shaft 7 of the artificial feather 3. It is formed so as to correspond to the case where two stages are arranged in the extending direction. However, as shown in FIG. 48, the artificial feather 3 of the shuttlecock 1 in which the string-like members are arranged in three stages has three stages of the convex portions 41 and the concave portions 42 so as to correspond to the three-stage arrangement of the string-like members. It is preferable to form as follows. More specifically, when the artificial feather having the configuration shown in FIGS. 25, 27, 28, 29, and 30 is used, assuming that the string-like members are arranged in three stages, the protrusions 41 to 42 are arranged in three stages. When the artificial feather having the configuration shown in FIG. Even in this case, the height and width of the convex portion 41 and the concave portion 42 are preferably the same as those in the first embodiment of the present invention. Moreover, it is preferable to use an arbitrary value in consideration of an interval at which the shaded string-like body 13 is arranged for the width of the region between the three protruding portions 41 in the extending direction of the shaft 7.

  The third embodiment of the present invention is different from the first embodiment of the present invention only in each point described above. That is, the configuration, conditions, procedures, effects, and the like that have not been described above for the third embodiment of the present invention are all in accordance with the first embodiment of the present invention.

(Embodiment 4)
Referring to FIG. 49, shuttlecock 1 according to the fourth embodiment of the present invention basically has the same configuration as shuttlecock 1 shown in FIG. However, a covering member that covers the outer peripheral surface of the warp yarn structure of the screen string 13 is further provided. 49 is different from the shading string-like body 13 showing the warp yarn portion of the first embodiment of the present invention.

  As described above, it is preferable that the screened string 13 is made into FRP in order to make it lightweight and highly rigid. However, even if the fixed member made into FRP is used as the shaded string-like body 13 and, for example, the above-described threaded yarn structure shown in FIG. 19 is formed, the connection portion or the mesh between the shaded string-like bodies 13 by the continuous strong hitting with the racket. The connecting portion between the hanging cord-like body 13 and the wing shaft portion 8 is broken (the portion of the shading string-like body 13 fixed to each other is removed, or the connecting portion between the hanging string-like body 13 and the wing shaft portion 8 is removed. May come off). When such breakage occurs, the connection of the ring-shaped portion of the mesh string 13 that is firmly coupled (fixed) as the warp yarn shown in FIG. Loose bonds. Then, it becomes difficult to maintain the shape of the artificial feather 3 in the shuttlecock 1, and as the shuttlecock 1 is hit, the arrangement and shape of the artificial feather 3 (that is, the shape of the shuttlecock 1) is greatly deformed.

  Therefore, in the shuttlecock shown in FIG. 49, the covering member 35 is formed so as to cover the outer peripheral surface of the screen string 13 (so as to cover the outer peripheral surface of the warp yarn structure). Note that, as shown in FIG. 49, the structure of the single thread string-like body 13 that constitutes the fixing member of the shuttlecock according to the fourth embodiment of the present invention is 19 is the same as the structure of the warp yarn of the screen string 13 in the first embodiment of the present invention shown in FIG.

  Specifically, as shown in FIG. 49, a gap (for example, the vicinity of the region H in FIG. 49) between the mesh string 13 and the shaft 7 (wing shaft portion 8) of the plurality of artificial feathers 3 or the mesh When the string-like body 13 fixes the shaft 7 (blade shaft part 8), a gap between the mesh-like string bodies 13 that intersect with each other (for example, in the vicinity of the region I in FIG. 49) or the outer circumference of the shaded string-like body 13 The covering member 35 is arranged so as to fill the entire surface (for example, the vicinity of the region J in FIG. 49) and coat the mesh string 13.

  Here, as the material of the covering member 35, it is preferable to use a material capable of forming a coating such as nitrocellulose. If it does in this way, the said coating effect | action can be performed efficiently.

  As described above, when the entire region including the vicinity of the region H, the region I, and the region J described above is coated with the covering member 35, the covering member 35 deforms the gap near the region H and the gap near the region I. Furthermore, the deformation of the shaded string 13 near the region J can be suppressed. Therefore, the artificial feather 3 can be more reliably reinforced by the screen string 13. As a result, it is possible to improve the durability of the shuttlecock 1 when the shuttlecock 1 is continuously hit with a racket.

  Further, since the fixed state of the screened string 13 is maintained by the covering member 35, for example, a fixed part of the screened string 13 or a fixed part of the screened string 13 and the shaft 7 shown in FIG. It is also possible to suppress the occurrence of defects such as detachment. Therefore, by changing the shape of the shuttlecock 1, it is possible to suppress the phenomenon that the air resistance when the shuttlecock 1 flies decreases and the flight distance changes (increases).

  The fourth embodiment of the present invention is different from the first embodiment of the present invention only in each point described above. That is, in the fourth embodiment of the present invention, all the configurations, conditions, procedures, effects, and the like not described above are in accordance with the first embodiment of the present invention.

(Embodiment 5)
Referring to FIGS. 50 and 51, Embodiment 5 of the shuttlecock according to the present invention basically has the same configuration as shuttlecock 1 shown in FIG. 1, but the structure of artificial feather 3 is the same. This is different from the shuttlecock 1 shown in FIG. That is, the artificial feather 3 shown in FIGS. 50 and 51 includes a wing body part 5 and a shaft 7 connected to the wing body part 5. The shaft 7 includes a wing shaft portion 8 disposed so as to protrude from the wing body portion 5, and a fixed shaft portion 10 connected to the wing body portion 5 at a substantially central portion of the wing body portion 5. The wing shaft portion 8 and the fixed shaft portion 10 are arranged so as to extend in the same line, and constitute one continuous shaft 7. As shown in FIG. 51, the shaft 7 has a cross-shaped cross section in a direction substantially perpendicular to the extending direction of the shaft 7. That is, as shown in FIG. 51, in the cross-sectional shape of the shaft 7, a relatively thick thickness (or a concentric circle centered on the central shaft portion 21 in FIG. 51) from the central shaft portion 21 in the vertical direction of FIG. The thick rib portion 22a having a thickness in the circumferential direction) is formed so as to protrude.

  Further, the thin rib portion having a relatively thin thickness (the thickness in the vertical direction in FIG. 51 (or in the circumferential direction of a concentric circle with the central shaft portion 21 as the center)) in the left-right direction in FIG. 51 from the central shaft portion 21. 22b is formed to protrude. The two thick rib portions 22a are formed to extend in opposite directions from the central shaft portion 21, respectively. The two thin rib portions 22b are also formed so as to extend in opposite directions from the central shaft portion 21, respectively. The thin rib portion 22b is formed to extend in a direction intersecting with the extending direction of the thick rib portion 22a (more specifically, a direction orthogonal). The rib part 22 is comprised from the thick rib part 22a and the thin rib part 22b. Further, the main body portion 23 of the shaft 7 is constituted by the plurality of rib portions 22 and the central shaft portion 21. The cross-sectional shape of the main body 23 is a so-called cross shape.

  Further, as shown in FIG. 51 (that is, so as to protrude from the side wall of the main body portion 23), a thin portion 24 is formed at the outer peripheral end portion of the thin rib portion 22b. The thickness of the thin part 24 as a flexible member is further thinner than the thickness of the thin rib part 22b. The thin portion 24 is formed integrally with the thin rib portion 22b. Further, the thin portion 24 is formed so that the surface of the thin portion 24 is substantially flush with the side surface (the upper side surface in FIG. 51) of the thin rib portion 22b. The thickness of the thin portion 24 can be, for example, 0.03 mm to 0.1 mm, and more preferably 0.04 mm to 0.07 mm. Further, the width (before deformation) of the thin portion 24 can be, for example, 0.1 mm or more and 0.5 mm or less, more preferably 0.2 mm or more and 0.3 mm or less.

  Here, to summarize the configuration of the shuttlecock according to the present invention using the artificial feather 3 described above, the shuttlecock has a hemispherical base body 2, a plurality of artificial feathers 3, and a shaded string shape as a fixing member. A body 13. The artificial feather 3 includes a wing body 5 and a shaft 7 connected to the wing body 5, and is fixed to the base body 2 so as to be arranged in an annular shape and partially overlap. The shaded string 13 fixes the shafts 7 of the plurality of artificial feathers 3 to each other. A thin portion 24 as a flexible member is formed integrally with the shaft 7 on at least a part of the surface of the shaft 7 facing the netting string 13. When the thin string portion 13 presses the thin portion 24 as the flexible member, the thin string portion 24 is deformed, and the net portion 13 and the thin portion 24 are connected and fixed via the adhesive member. Has been.

  From a different point of view, the shuttlecock artificial feather 3 according to the present invention includes a wing body portion 5 and a shaft 7 connected to the wing body portion 5. The cross-sectional shape (for example, see FIG. 51) in a plane perpendicular to the extending direction of the shaft 7 may be a cross shape (see FIG. 51) or a T-shape (see FIG. 54 described later). A thin portion 24 as a flexible member that is thinner than the main body portion 23 that forms a cross-shaped or T-shaped cross-sectional shape on the shaft 7 is formed integrally with the main body portion 23 so as to protrude from the side surface of the main body portion 23. Has been.

  Thus, since the thin part 24 which is a flexible member is integrally formed with the said shaft 7 in the side surface of the axis | shaft 7, as mentioned later, the axis | shaft 7 is made by the netting string-like body 13 as a fixing member. At the time of fixing, the thin portion 24 is deformed and the adhesive strength between the netting string 13, the thin portion 24 and the shaft 7 can be improved.

  Further, in the artificial feather shown in FIGS. 50 and 51, the rigidity of the shaft 7 is increased while suppressing the increase in the total mass of the shaft 7 by making the cross-sectional shape of the main body portion 23 of the shaft 7 substantially cross-shaped. Can do. Furthermore, the air resistance of the artificial feather 3 for controlling the flight characteristics of the shuttlecock 1 can be appropriately adjusted by forming the thin portion 24 so as to protrude from the side surface of the main body portion 23 of the shaft 7. And since such a thin part 24 is made thinner than the main-body part 23, the increase in the mass of the axis | shaft 7 can be suppressed. As a result, the shuttlecock 1 having excellent flight characteristics is configured by improving the rigidity of the shaft 7 of the artificial feather 3 and adjusting the air resistance of the artificial feather 3 while suppressing an increase in the mass of the artificial feather 3. The artificial feather 3 can be realized.

  The width of the shaft 7 in the direction in which the thin rib portion 22b extends (left and right direction in FIG. 51) is the sum of the width of the thin portion 24 and the width W3 of the main body portion 23. And the said width | variety of the axis | shaft 7 is larger than the width | variety (height) T of the axis | shaft 7 in the direction (up-down direction of FIG. 51) where the thick rib part 22a extends.

  The width of one (left side) thin portion 24 and the width of the other (right side) thin portion 24 in FIG. 51 may be the same value, or may be different values. Moreover, although the thin part 24 may be formed in the full length of the axis | shaft 7, it is preferable to be formed in the wing shaft part 8 which is a part exposed to the exterior at least. The thin portion 24 may be formed only on one side, or may be formed partially (for example, intermittently) in the extending direction of the shaft 7 instead of the entire length of the shaft 7.

  The wing body 5 has a foam layer and a shaft fixing layer disposed so as to sandwich the fixed shaft portion 10, and the foam layer and the shaft fixing layer are fixed to each other. It is composed of an adhesive layer disposed with the fixing shaft portion 10 therebetween. That is, in the wing main body portion 5, the foam layer and the shaft fixing layer are laminated so as to sandwich the fixing shaft portion 10. Further, in the wing main body portion 5, an adhesive layer is disposed to connect the foam layer and the shaft fixing layer to each other and connect and fix the fixed shaft portion 10 to these foam layer and shaft fixing layer. From a different point of view, in the wing body 5, when the shuttlecock 1 is configured, an adhesive layer is laminated on the foam layer positioned on the outer peripheral side. On this adhesive layer, the fixing shaft portion 10 is disposed so as to be located at the substantially central portion of the adhesive layer and the foam layer. At this time, the fixing shaft portion 10 is arranged so that the direction in which the thick rib portion 22a protrudes from the central shaft portion 21 is substantially perpendicular to the surface of the adhesive layer (from the central shaft portion 21 to the thin rib portion 22b). The protruding direction is arranged along the surface of the adhesive layer. Then, the other adhesive layer is arranged so as to extend from the fixed shaft portion 10 to the adhesive layer. Further, a shaft fixing layer is disposed on the adhesive layer.

  In the artificial feather 3, the shaft 7 is warped toward the foam layer side (that is, the outer peripheral side of the shuttlecock 1). If it says from a different viewpoint, the axis | shaft 7 will be in the state which curved so that it might become convex to the axial fixed layer side. Further, as described above, the artificial feather 3 is warped toward the foam layer side in the extending direction of the shaft 7 and intersects the extending direction of the shaft 7 (for example, in the extending direction of the shaft 7). In a state perpendicular to the width direction that is a direction along the surface of the wing main body portion 5, the wing main body portion 5 is warped toward the foam layer side (that is, the wing main body portion 5 protrudes toward the shaft fixing layer side). It may be warped so as to be). In this case, the state in which the artificial feather 3 is warped in the extending direction of the shaft 7 and the state in which the wing body portion 5 is warped in the direction intersecting the extending direction of the shaft 7 are simultaneously generated. Alternatively, only one of the warpages may occur. Such warping is performed by a conventionally well-known method such as applying heat treatment to the constituent material of the shaft 7 or the wing body portion 5 or forming the constituent material of the shaft 7 or the wing body portion 5 while warping from the beginning. Can be realized.

  Here, as a material of the foam layer constituting the wing body part 5, for example, a resin foam, more specifically, for example, a polyethylene foam (polyethylene foam) can be used. Similarly, a resin foam can be used for the shaft fixing layer. In addition to the polyethylene foam, for example, an arbitrary material such as a film made of a resin or a non-woven fabric can be used for the shaft fixing layer.

  As the adhesive layer, for example, a double-sided tape can be used. In the artificial feather 3 shown in FIGS. 50 and 51, polyethylene foam is preferably used as the foam layer and the shaft fixing layer. The extrusion direction of the polyethylene foam is preferably the direction shown by the arrow 95 in FIG. In this case, since the shaft 7 is connected and fixed to the wing body portion 5 so as to intersect the extrusion direction of the polyethylene foam indicated by the arrow 95, the wing body portion 5 is in a direction along the extending direction of the shaft 7. The probability of occurrence of defects such as tearing can be reduced.

  The fixing method of the artificial feather 3 shown in FIGS. 50 and 51 using the fixing member (shaded string-like body 13) is basically the same as the fixing method of the artificial feather 3 shown in FIGS. is there. That is, the thinned portion 24, which is a flexible member formed integrally with the shaft 7 (feather shaft portion 8), is deformed by using a netting string-like body 13 made of a single string-like body as the fixing member. Thus, the shafts 7 are bound in a shaded manner to connect the adjacent shafts 7 together. Then, the mesh string 13 presses the end of the thin portion 24 (the end extending from the side of the shaft 7), so that the thin portion 24 is closer to the shaft 7 (wing shaft portion 8) as shown in FIG. Deforms by receiving pressure. That is, by forming the thin portion 24 on the side of the shaft 7, the contact area between the shaft 7 on which the thin portion 24 is formed and the shaded string 13 is reduced so that the thin portion 24 contacts the shaft 7. This is larger than when artificial feathers that are not formed are used. Further, since the thin portion 24 is deformed by being pressed against the screened string-like body 13, the shape of the contact portion between the shaft 7 formed on the side of the thin-walled portion 24 and the screened cord-like body 13 (specifically The shape of the deformed thin portion 24 is complicated as will be described later. Since the adhesive adheres to the surface of the thin portion 24 having such a complicated shape and the screen string 13 and the thin portion 24 are connected and fixed, the screen string 13 and the thin portion 24 are connected. And the adhesive strength with the shaft 7 is improved. That is, the adhesive strength between the mesh string 13 and the shaft 7 and the thin portion 24 of the artificial feather is increased as compared with the case where the artificial feather in which the thin portion 24 is not formed on the shaft 7 is used. Therefore, in the artificial shuttlecock in which the thin portion 24 is formed on the side of the shaft 7, the durability against continuous smashing with a racket can be greatly improved.

  In the schematic cross-sectional view of FIG. 51, the arrangement of the mesh string 13 with respect to the shaft 7 is simplified and depicted in the same manner as in FIG. The actual arrangement of the screened string 13 when the shaft 7 of the artificial feather 3 is fixed by the screened string 13 as a warp is as shown in FIGS. 18 and 19 described above.

  In the artificial feather 3 shown in FIGS. 50 and 51, the cross-sectional shape of the shaft 7 is a cross shape, but the cross-sectional shape may be other shapes. That is, as long as the thin portion 24 formed integrally with the shaft 7 is provided, the cross-sectional shape of the shaft 7 may be another shape. For example, the cross-sectional shape of the shaft 7 may be a cross-sectional shape as shown in FIGS. Further, the thin portion 24 may be formed only on one side surface of the shaft 7. Further, the thin portion 24 may be formed at a plurality of locations on the side surface of the shaft 7. For example, as shown in FIG. 51, the thin-walled portion 24 may be formed at three or more locations without being limited to two locations.

  Next, with reference to FIGS. 52 and 53, the artificial feather 3 shown in FIGS. 50 and 51 and a method for manufacturing the shuttlecock using the artificial feather 3 will be described.

First, with reference to FIG. 52, the manufacturing method of the artificial feather | wing 3 for shuttlecocks shown in FIG. 50 and FIG. 51 is demonstrated. As shown in FIG. 52, in the method for manufacturing the artificial feather 3, first, the component material preparing step (S110) is performed. In this step (S110), the shaft 7 constituting the artificial feather 3, the foam layer to be the wing body 5 and the sheet material constituting the shaft fixing layer, and both surfaces to be the adhesive layer constituting the wing body 5 Prepare the tape. In addition, if the planar shape of these sheet-like members and double-sided tape is larger than the size of the wing main-body part 5 shown in FIG. 50, it can be made into arbitrary shapes. As the sheet-like member to be the foam layer, for example, a polyethylene foam (a polyethylene foam and formed into a sheet) having a thickness of 1.0 mm and a basis weight of 24 g / m ² is used. be able to. Moreover, as a sheet-like member which should become a shaft fixing layer, a polyethylene foam having a thickness of 0.5 mm and a basis weight of 20 g / m ² can be used. Moreover, the fabric weight of the double-sided tape used as an adhesive layer can be 10 g / m ² .

  Moreover, as a manufacturing process of the axis | shaft 7 mentioned above, as shown in FIG. 53, a metal mold | die preparation process (S111) is first implemented. In this step (S111), a mold for forming the shaft 7 is prepared, for example, by injection molding or injection compression molding. The mold prepared here is, for example, a mold divided into an upper mold and a lower mold, and concave portions corresponding to the shape of the shaft 7 are formed on the mold surfaces facing each other. In addition, the concave portion includes a gap for forming the thin portion 24 in a portion where the main body portion 23 of the shaft 7 is formed and an outer peripheral portion of the portion where the main body portion 23 is formed.

  Next, a forming step (S112) is performed. In this step (S112), the mold prepared as described above is first set in an apparatus for injecting resin into the mold (concave portion) such as an injection molding machine (mold setting step). Next, a resin injection step is performed. That is, the resin is injected from the resin injection port provided in the mold into the recess inside the mold. As the resin, for example, a thermoplastic resin can be used. As a result, a shaft is formed inside the mold. Since the gap for forming the thin portion 24 is formed in the concave portion of the mold as described above, the thin portion 14 protruding from the side surface is formed on the obtained shaft 7. In this way, the molding step (S112) is performed. Thereafter, the shaft 7 is taken out from the inside of the mold. As a result, the shaft 7 constituting the artificial feather 3 can be obtained.

  Next, as shown in FIG. 52, a bonding step (S120) is performed. In this step (S120), a double-sided tape to be an adhesive layer is affixed on the main surface of the sheet-like member to be a foam layer. Then, the fixing shaft portion 10 of the shaft 7 is disposed on the double-sided tape. Further, a sheet-like member to be a shaft fixing layer on which a double-sided tape to be another adhesive layer is affixed to the surface facing the fixed shaft portion 10 is laminated and bonded. As a result, it is possible to obtain a structure in which the fixed shaft portion 10 of the shaft 7 is sandwiched and fixed between the sheet-like member to be the foam layer and the sheet-like member to be the shaft fixing layer.

  Next, a post-processing step (S130) is performed. Specifically, an unnecessary portion (that is, a region other than the portion to be the wing body portion 5) of the laminated sheet-like member to be the wing body portion 5 is cut and removed. As a result, the artificial feather 3 as shown in FIGS. 50 and 51 can be obtained. And the foam layer etc. are contracted by performing heat processing, such as applying heat from the foam layer side, with respect to the artificial feather 3. As a result, it is possible to realize a state in which the shaft 7 and the wing body 5 are warped toward the one surface side (foam layer side) of the wing body 5. In order to realize such a state in which the shaft 7 and the wing body portion 5 are warped, other methods may be used. For example, a method of using a shaft 7 that is warped from the beginning may be employed.

  Next, a method for manufacturing a shuttlecock using the artificial feather 3 shown in FIGS. 50 and 51 will be described. The method for manufacturing the shuttlecock is basically the same as the method for manufacturing the shuttlecock shown in FIG. That is, as shown in FIG. 11, first, a preparation step (S100) is performed. In this preparation step (S100), constituent members of the shuttlecock 1 such as the base body 2 (tip member) of the shuttlecock 1 and the artificial feather 3 described above are prepared.

  As a manufacturing method of the base body 2, any conventionally known method can be used. For example, a natural material such as cork can be used as a material to be the base body 2. Further, an artificial resin or the like may be used as the material of the base body 2. When an artificial resin is used as the material of the base body 2, the base body 2 can be formed using any conventionally known processing method. For example, first, a block of a material to be the base body 2 is prepared, and a rough shape is formed by cutting. At this time, processing is performed in consideration of the height of the hemispherical portion of the tip portion. And you may use the method of forming the insertion hole for inserting the artificial feather | wing 3 further by cutting. Moreover, when using the artificial resin mentioned above, an ionomer resin foam, EVA (ethylene vinyl acetate copolymer), polyurethane, PVC (polyvinyl chloride), polyethylene, a polypropylene etc. can be used, for example. Moreover, as a manufacturing method of the artificial feather 3, the manufacturing method shown in FIG. 52 and FIG. 53 mentioned above can be used.

  Next, as shown in FIG. 11, an assembly process (S200) is performed. In the assembly step (S200), for example, as the step (S21) of fixing the artificial feather to the base body, the roots of the shafts 7 of the plurality of artificial feathers 3 described above are inserted and fixed in the insertion holes in the fixing surface portion of the base body. . Furthermore, as a step (S22) of connecting the artificial feathers by the fixing member, the plurality of artificial feathers 3 are fixed to each other by the string-like members. Moreover, as shown in FIG. 1, the wing | blade main-body part 5 is arrange | positioned so that the adjacent artificial feather | wing 3 may overlap partially. In order to maintain the overlapping state of the wing body part 5, it circulates around the fixing shaft part 10 connected to the wing body part 5 of one artificial feather 3 and between the overlapping parts of the two wing body parts 5. An intermediate thread that passes through and reaches the fixing shaft portion 10 of the other adjacent artificial feather 3 and circulates around the fixing shaft portion 10 may be arranged by sewing. Thus, the shuttlecock 1 having the configuration shown in FIG. 1 can be manufactured using the artificial feather 3 shown in FIGS.

  Further, as the material of the fixing member, any material such as resin or fiber can be used as already described. For example, it is preferable to use an aramid fiber or glass fiber as a string-like member, impregnating the aramid fiber or glass fiber with a resin (for example, a thermosetting resin), and curing the resin to use FRP. . By using FRP in this way, the strength and rigidity of the fixing member can be improved. Moreover, as a thermosetting resin, an epoxy resin and a phenol resin can be used, for example. If a thermosetting resin is used for FRP in this way, when a heating process is performed in the process for fixing the fixing member to the shaft 7, the fixing member can be easily made FRP with the thermosetting resin at the same time. Can be done.

  A modification of the artificial feather according to the present invention shown in FIGS. 50 and 51 will be described with reference to FIG. FIG. 54 corresponds to FIG.

  The artificial feather provided with the shaft shown in FIG. 54 basically has the same structure as the artificial feather 3 shown in FIGS. 50 and 51, but the cross-sectional shape of the main body portion 23 of the shaft 7 is different. Specifically, the main body portion 23 of the shaft 7 shown in FIG. 54 has two thin rib portions 22b extending from the central shaft portion 21 in the left-right direction, while the thick rib is formed only on one side from the lower side of the central shaft portion 21. The part 22a extends. A thin portion 24 as a flexible member is formed integrally with the main body portion 23 at the outer peripheral end portion of the thin rib portion 22b. The thin-walled portion 24 is bent by being pressed by the screen string 13. The effect similar to that of the artificial feather 3 shown in FIGS. 50 and 51 can also be obtained by such an artificial feather using a shaft whose so-called cross section is a T-shaped main body 23. Moreover, in the shuttlecock of each embodiment mentioned above, the structure used in other embodiment can be applied combining it suitably. For example, the loop string 14 as a reinforcing fixing member in the shuttlecock of the second embodiment may be applied to the shuttlecocks of the third to fifth embodiments. Moreover, you may apply the coating | coated member 35 in Embodiment 4 about the shuttlecock in Embodiments other than Embodiment 4. FIG.

  Each embodiment disclosed this time must be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  The present invention is advantageously applied to a badminton shuttlecock using artificial feathers having flying characteristics and durability equivalent to those of a badminton shuttlecock using waterfowl feathers.

  DESCRIPTION OF SYMBOLS 1 Shuttle cock, 3 Artificial feather, 5 wing main-body part, 6 Parts which should become wing main-body part, 7 axis | shaft, 8 wing shaft part, 9 Sheet-like member, 10 Adhering shaft part, 12 Protruding part, 13 Shaded string-like body , 14 orbital string, 21 central shaft part, 22 rib part, 22a, thick rib part, 22b thin rib part, 23 main body part, 24 thin part, 31, 33 flap part, 32 edge part, 34 adhesive, 35 covering member, 41 convex portion, 42 concave portion.

Claims (10)

A hemispherical base body;
A plurality of artificial feathers fixed to the base body so as to include a wing part and a shaft connected to the wing part, and arranged in an annular shape and partially overlap;
A fixing member that fixes the shafts of the plurality of artificial feathers to each other;
A flexible member is disposed on at least a part of the surface of the shaft facing the fixing member;
For the badminton in which the fixing member and the flexible member are connected and fixed via an adhesive member in a state in which the flexible member is deformed by the fixing member pressing the flexible member. Shuttle cock. A hemispherical base body;
A plurality of artificial feathers fixed to the base body so as to include a wing part and a shaft connected to the wing part, and arranged in an annular shape and partially overlap;
A fixing member that fixes the shafts of the plurality of artificial feathers to each other;
A reinforcing member made of porous or fibrous material is disposed on at least a part of the surface of the shaft facing the fixing member,
The fixing member and the reinforcing member are connected and fixed via an adhesive member,
A shuttlecock for badminton, wherein at least a part of the adhesive member is impregnated in the reinforcing member.   The shuttlecock for badminton according to claim 2, wherein the fixing member is fixed in a deformed state by pressing the reinforcing member. A hemispherical base body;
A plurality of artificial feathers fixed to the base body so as to include a wing part and a shaft connected to the wing part, and arranged in an annular shape and partially overlap;
A fixing member that fixes the shafts of the plurality of artificial feathers to each other;
A flexible member is formed integrally with the shaft on at least a part of the surface of the shaft facing the fixing member,
For the badminton in which the fixing member and the flexible member are connected and fixed via an adhesive member in a state in which the flexible member is deformed by the fixing member pressing the flexible member. Shuttle cock.   The shuttlecock for badminton according to any one of claims 1 to 4, wherein the fixing member includes a string-like body wound so as to connect the shafts of the plurality of artificial feathers.   The shuttlecock for badminton according to any one of claims 1 to 4, wherein the fixing member is made into FRP.   The shuttlecock for badminton according to any one of claims 1 to 4, wherein the fixing member includes a thermosetting resin.   The shuttlecock for badminton according to any one of claims 1 to 4, wherein the fixing member includes a yarn made of glass or an aramid fiber.   5. The reinforcing member according to any one of claims 1 to 4, further comprising a fixing member for reinforcement connected to the fixing member and arranged around the outer peripheral surface of the plurality of artificial feathers arranged in an annular shape. The shuttlecock for badminton as described.   The shuttlecock for badminton according to any one of claims 1 to 4, further comprising a covering member that covers an outer peripheral surface of the fixing member.