WO2010029914A1 - Badminton shuttlecock - Google Patents
Badminton shuttlecock Download PDFInfo
- Publication number
- WO2010029914A1 WO2010029914A1 PCT/JP2009/065650 JP2009065650W WO2010029914A1 WO 2010029914 A1 WO2010029914 A1 WO 2010029914A1 JP 2009065650 W JP2009065650 W JP 2009065650W WO 2010029914 A1 WO2010029914 A1 WO 2010029914A1
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- WIPO (PCT)
- Prior art keywords
- shaft
- shuttlecock
- string
- wing
- artificial feather
- Prior art date
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B67/00—Sporting games or accessories therefor, not provided for in groups A63B1/00 - A63B65/00
- A63B67/18—Badminton or similar games with feathered missiles
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B67/00—Sporting games or accessories therefor, not provided for in groups A63B1/00 - A63B65/00
- A63B67/18—Badminton or similar games with feathered missiles
- A63B67/183—Feathered missiles
- A63B67/187—Shuttlecocks
- A63B67/19—Shuttlecocks with several feathers connected to each other
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
- A63B2102/04—Badminton
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2209/00—Characteristics of used materials
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2209/00—Characteristics of used materials
- A63B2209/02—Characteristics of used materials with reinforcing fibres, e.g. carbon, polyamide fibres
Definitions
- This 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.
- 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.
- 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.
- 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 has 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.
- the flexible member disposed on the shaft surface of the artificial feather is It is pressed and deformed by the fixing member.
- 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.
- the shape of the contact portion between the shaft on which the flexible member is arranged and the fixing member Is complicated.
- 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 has 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.
- 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.
- 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.
- 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.
- the fixing member is fixed in a deformed state by pressing the reinforcing member.
- 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).
- a synergistic effect with the effect of improving the adhesive strength between the reinforcing member and the reinforcing member can be further improved.
- the badminton shuttlecock according to the present invention has 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.
- the fixing member which fixes the axis
- the flexible member is integrally formed with the said axis
- 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.
- 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.
- 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.
- 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.
- 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.
- the string-like body By using the string-like body, the shafts of the artificial feathers can be easily fixed.
- the fixing member may be FRP.
- 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.
- the fixing member for example, the above-described string-like body
- the fixing member includes a thermosetting resin. If it does in this way, while the operation
- the fixing member 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
- 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.
- 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.
- a fixing member having high impact resistance can be realized.
- the badminton shuttlecock preferably 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.
- FIG. 3 is a schematic cross-sectional view taken along line III-III in FIG.
- FIG. 4 is a schematic sectional view taken along line IV-IV in FIG. 2.
- FIG. 5 is a schematic cross-sectional view taken along line VV in FIG. 2.
- FIG. 3 is a schematic cross-sectional view taken along line VI-VI in FIG. 2. 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.
- FIG. 13 is a schematic cross-sectional view taken along line XIII-XIII in FIG.
- FIG. 14 is a schematic cross-sectional view taken along line XIV-XIV in FIG. 12.
- FIG. 13 is a schematic cross-sectional view taken along line XV-XV in FIG. 12. 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
- 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
- FIG. 33 is a schematic cross-sectional view taken along line XXXIII-XXXIII in FIG. 32. 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
- a shuttlecock 1 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).
- 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 in which a part of the wing shaft 8 is embedded.
- 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.
- the end portion of the protruding portion 12 is arranged along the wing shaft portion 8 with a substantially constant width.
- 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.
- 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.
- the cross-sectional shape in the direction intersecting (orthogonal to) the extending direction of the shaft 7 is a quadrangle, more specifically a rhombus.
- the cross-sectional shape of the shaft 7 is not limited to the quadrangular shape as described above, and any shape can be adopted.
- 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.
- 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.
- 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).
- a part of the sheet-like member 9 is exposed from the side portion of the shaft 7.
- 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, and the central portion and the tip portion of the shaft 7 are arranged. 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.
- 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.
- 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.
- wing 3 for shuttlecocks is demonstrated.
- 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).
- 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.
- the nonwoven fabric which consists of chemical fibers, such as a polyester fiber and an acrylic fiber, can be used.
- a nonwoven fabric having a basis weight of 10 g / m 2 or more and 90 g / m 2 or less can be used.
- 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.
- a thickness of 0.09 mm or more and 0.25 mm or less may be used.
- natural fibers such as silk fabric and cotton, cellulose fibers (so-called paper), and those coated with resin or the like may be used.
- a resin film thickness: 50 to 100 ⁇ m
- a polyamide resin film, a polyester resin film, or a PET film can be used instead of the nonwoven fabric.
- what formed the coating layer on the surface of the arbitrary nonwoven fabrics mentioned above as a nonwoven fabric can be used.
- 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.
- coating layers such as a resin film, may be formed in the single side
- a step (S20) of arranging a flexible member inside the mold is performed.
- 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.
- 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.
- 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.
- 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.
- the sheet-like member 9 is exposed on the surface of the shaft 7 toward the tip end side (the upper end portion side in FIG. 12) of the shaft 7.
- 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.
- a preparatory process (S100) is first implemented.
- 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.
- the manufacturing method shown in FIG. 10 mentioned above can be used.
- an assembly process (S200) is prepared.
- a process (S21) of fixing artificial feathers to the base body is performed.
- a plurality of the artificial feathers 3 described above are connected to the flat surface portion of the base body.
- 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.
- wing 3 is fixed to a base main body by supplying an adhesive agent etc. to the said hole.
- 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.
- a step (S22) of connecting the artificial feather with the fixing member is performed.
- 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).
- the end of the projecting portion 12 acting as a flexible member extends on the side of the shaft 7.
- the end portion of the protruding portion 12 is deformed by being pressed by the string-like body.
- the step of fixing the fixing member and the flexible member (S23) is performed. 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.
- 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.
- the fixing member that fixes the plurality of artificial feathers 3 to each other is not limited to the string-like body as described above, and any member such as a ring-shaped member may be used.
- a material of the said fixing member arbitrary materials, such as resin and a fiber, can be used, for example.
- 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 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.
- 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.
- 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).
- 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.
- 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.
- FIG. 4 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.
- the end of the sheet-like member 9 extends from the side of the shaft 7 in a substantially horizontal direction before the mesh string 13 is wound around the shaft 7.
- 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.
- 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.
- the edge part of the sheet-like member 9 as a reinforcement member which consists of porous or a fiber is arrange
- 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.
- 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.
- 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.
- 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.
- the wing shaft of the waterfowl feathers 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.
- 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.
- 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.
- the specific gravity (mass) of the feather shaft portion 8 of the artificial feather 3 of the artificial shuttlecock is larger than that of the feather shaft portion of the waterfowl feather. 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.
- 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.
- the screened string-like body 13 made of a light and highly rigid thread is used as a fixing member constituting the shuttlecock 1.
- 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.
- 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).
- 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.
- an epoxy resin or a phenol resin can be used as the thermosetting resin.
- the mesh string-like body 13 preferably 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.
- one shaded string-like body 13 is formed by using aramid fibers having a standard of 400D as four twisted yarns.
- 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.
- 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.
- one shaded string-like body 13 shown in FIG. 22 fixes a plurality of artificial feathers 3 in an annular shape using a warp thread.
- 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.
- 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 shape of the base 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.
- FIG. 24 A modification of the artificial feather 3 will be described with reference to FIGS.
- 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.
- 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 protrusion 12 on the right side of the shaft 7 is narrow in the direction substantially perpendicular to the central axis of the wing shaft portion 8.
- 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.
- 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.
- FIG. 25 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 protruding portion 12 is different.
- 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.
- 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.
- 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.
- 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.
- 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 protruding portion 12 is different.
- the convex portions 41 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.
- 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.
- the convex part 41 in FIG. 26 can take the same shape as the convex part 41 in FIG.
- FIG. 27 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. 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.
- 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.
- the width of the recess 42 in the direction along the central axis of the wing shaft portion 8 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.
- variety width in the up-down direction of FIG.
- 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.
- 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 protruding portion 12 is different.
- 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 with each other.
- the area and adhesive strength can be further increased.
- the recessed part 42 in FIG. 28 can take the same shape as the recessed part 42 in FIG.
- 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 8 is different.
- 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.
- the recessed part 42 in FIG. 29 can take the same shape as the recessed part 42 in FIG.
- 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.
- 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.
- another modification of the artificial feather 3 basically has the same configuration as the 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.
- the wing body 5 and the protrusion 12 of the artificial feather 3 shown in FIG. 32 are adhered to the shaft 7 later via an adhesive 34, as shown in the schematic sectional view of FIG.
- 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.
- 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.
- 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.
- the shuttlecock 1 according to the present invention basically has the same configuration as the shuttlecock 1 shown in FIG. 1, but the configuration of the 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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 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.
- the flap portion 31 is disposed at a position where it can be seen from the hemispherical base body side and outside the base body. 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.
- the wing shaft portion 8 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.
- FIG. 37 A modification of the artificial feather 3 will be described with reference to FIGS.
- 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.
- 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.
- the other 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. 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.
- 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.
- 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.
- 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.
- the said recessed part 42 is formed in the part to which the 2 steps
- 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 flap of wing shaft part 8 is provided.
- 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.
- 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.
- 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.
- the recessed part 42 is formed so that the flap part 33 may be pinched
- the other modification of the artificial feather 3 basically has the same configuration as the artificial feather 3 shown in FIG. 40, but the shapes of the 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.
- the other modification of the artificial feather 3 basically has the same configuration as the artificial feather 3 shown in FIG. 40, but the shapes of the 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.
- another modification of the artificial feather 3 basically has the same configuration as the artificial feather 3 shown in FIG. 40, but the shapes of the 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
- 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. Different from 3. 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
- the shaded string 13 is disposed so as to overlap the end portions of the flap portion 31 and / or the flap portion 33.
- 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.
- 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.
- the artificial feather 3 is formed with one or two flap portions 31, 33, but three or more flap portions 31, 33 may be formed depending on required flight characteristics.
- the flap portions 31 and 33 are formed 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.
- the formation positions of the flap portions 31 and 33 in the central axis direction of the wing shaft portion 8 may be different from each other. 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.
- each artificial feather 3 in FIGS. 36 to 44 it is preferable to have a recess 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.
- FIGS. 36 to 44 disclose a structure provided with a recess 42 similar to the artificial feather 3 of FIG. 28, but this is merely an example. That is, not only the concave portion 42 similar to the artificial feather 3 in FIG. 28 but also a combination of any concave portion 42 or convex portion 41 shown in FIGS. 25 to 31 in order to increase the contact area and adhesive strength. Can do.
- 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.
- 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
- 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
- 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.
- wing with a fixing member is implemented.
- This step (S26) is basically the same as the step (S22) in FIG.
- 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.
- 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).
- the 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.
- 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.
- 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.
- 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.
- FIG. 45 and FIG. 16 both describe the same process, which is the assembly process of the shuttlecock 1, but are different in point of focus.
- 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.
- 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.
- the description has been given from the viewpoint that both of them adhere to each other by impregnating the inside.
- 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.
- 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
- 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.
- 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.
- 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.
- 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
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- the orbiting string-like body 14 is arranged on the shuttlecock 1, the shaded string-like body 13 is made into FRP in advance 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
- 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
- an aramid fiber having a standard of 400D used as the circulating string-like body 14 causes the outer periphery of the ring formed by the shafts 7 of the plurality of artificial feathers 3 to be 3 to 5 turns, more preferably 4 turns. If it does in this way, sufficient intensity
- 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.
- 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.
- the shuttlecock shown in FIG. 48 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 are all made of a string-like member 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.
- 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.
- the protrusions 41 to 42 are arranged in three stages.
- 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.
- 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.
- 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.
- the screened string 13 FRP it is preferable to make the screened string 13 FRP in order to make it lightweight and highly rigid.
- the connection portion or the mesh between the shaded string-like bodies 13 by the continuous strong hitting with the racket 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).
- the covering member 35 is formed so as to cover the outer peripheral surface of the netting string 13 (so as to cover the outer peripheral surface of the warp yarn structure).
- 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.
- 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
- 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
- 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.
- 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
- 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.
- 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 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.
- 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.
- 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.
- 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.
- a thin portion 24 is formed at the outer peripheral end of the thin rib portion 22b as shown in FIG. 51 (that is, so as to protrude from the side wall of the main body portion 23).
- 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.
- 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.
- 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.
- 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.
- the shuttlecock artificial feather 3 includes a wing body part 5 and a shaft 7 connected to the wing body part 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.
- the thin part 24 which is a flexible member is integrally formed with the said shaft 7 in the side surface of the axis
- 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.
- 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
- 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 is the sum of the width of the thin portion 24 and the width W3 of the main body portion 23.
- shaft 7 is larger than the width
- the width of one (left side) thin portion 24 and the width of the other (right side) thin portion 24 may be the same value, or may be different values.
- the thin part 24 may be formed in the full length of the axis
- 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.
- 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.
- 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
- 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.
- 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.
- a resin foam for example, a polyethylene foam (polyethylene foam) can be used.
- a resin foam can be used for the shaft fixing layer.
- an arbitrary material such as a film made of a resin or a non-woven fabric can be used for the shaft fixing layer.
- the adhesive layer for example, double-sided tape can be used.
- 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.
- 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 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.
- 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.
- FIG. 51 In the schematic cross-sectional view of FIG. 51, the arrangement of the shaded 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.
- 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.
- the cross-sectional shape of the shaft 7 may be a cross-sectional shape as shown in FIGS.
- 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.
- wing 3 for shuttlecocks shown in FIG. 50 and FIG. 51 is demonstrated.
- the component material preparing step (S110) is performed.
- 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
- the tape prepares the tape.
- 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.
- 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.
- 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.
- the fabric weight of the double-sided tape used as an adhesive layer can be 10 g / m 2 .
- a mold preparation process (S111) is performed.
- 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.
- 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.
- a molding step (S112) is performed.
- 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).
- 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.
- the resin for example, a thermoplastic resin can be used.
- 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.
- a bonding step (S120) is performed as shown in FIG.
- 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.
- the fixing shaft portion 10 of the shaft 7 is disposed on the double-sided tape.
- 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.
- 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.
- 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.
- the base body 2 can be produced by any known method.
- a natural material such as cork can be used as a material to be the base body 2.
- an artificial resin or the like may be 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
- an ionomer resin foam EVA (ethylene vinyl acetate copolymer), polyurethane, PVC (polyvinyl chloride), polyethylene, a polypropylene etc.
- EVA ethylene vinyl acetate copolymer
- PVC polyvinyl chloride
- polyethylene a polypropylene etc.
- a manufacturing method of the artificial feather 3 the manufacturing method shown in FIG. 52 and FIG. 53 mentioned above can be used.
- an assembly step (S200) is performed as shown in FIG.
- 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. .
- the 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.
- blade main-body part 5 is arrange
- the shuttlecock 1 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.
- the shuttlecock 1 having the configuration shown in FIG. 1 can be manufactured using the artificial feather 3 shown in FIGS.
- any material such as resin or fiber can be used as the material of the fixing member.
- 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.
- a resin for example, a thermosetting resin
- FRP 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.
- FIG. 54 corresponds to FIG.
- 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.
- the structure used in other embodiment can be applied combining it suitably.
- 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.
- 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.
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Abstract
Description
図1~図9を参照して、本発明に従ったシャトルコックおよびシャトルコック用人工羽根の実施の形態を説明する。 (Embodiment 1)
An embodiment of a shuttlecock and an artificial feather for a shuttlecock according to the present invention will be described with reference to FIGS.
図24を参照して、人工羽根3の他の変形例は、基本的には図2に示した人工羽根3と同様の構成を備えるが、突出部12の平面形状が異なっている。具体的には、図24に示した人工羽根3では、軸7に関して突出部12が左右対称となっておらず、軸7の左側の突出部12の、羽軸部8の中心軸とほぼ直交する方向(図24の左右方向)の幅が広く、軸7の右側の突出部12の、羽軸部8の中心軸とほぼ直交する方向の幅が狭くなっている。このような形状の突出部12によっても、図2に示した人工羽根3における突出部12と同様の効果を得ることができる。なお、たとえば軸7の右側の突出部12の左右方向の幅を広くし、軸7の左側の突出部12の左右方向の幅を狭くした形状の突出部12としてもよい。なお、左右いずれか広い方の突出部12の左右方向の幅は、左右いずれか狭い方の突出部12の左右方向の幅の1.1倍以上3倍以下であることが好ましい。なお、1.2倍以上2倍以下であることがさらに好ましい。 A modification of the
Referring to FIG. 24, another modification of the
図37を参照して、人工羽根3の他の変形例は、基本的には図36に示した人工羽根3と同様の構成を備えるが、フラップ部31の平面形状が異なっている。具体的には、図37に示した人工羽根3では、フラップ部31の平面形状が矩形状(四角形状)となっている。このような形状のフラップ部31によっても、図36に示した人工羽根3におけるフラップ部31と同様の効果を得ることができる。なお、フラップ部31の平面形状を、図37に示すような羽軸部8の羽軸部8の中心軸と直交する辺を有するような四角形状としてもよいが、他の四角形状(たとえば、台形状や平行四辺形状、菱形状など)、あるいは五角形や六角形などの多角形状としてもよい。 A modification of the
Referring to FIG. 37, another modification of
図46を参照して、本発明の実施の形態2に従ったシャトルコック1は、基本的には図1に示したシャトルコック1と同様の構成を備える。しかし、図46に示すシャトルコック1は、固定部材である網掛け紐状体13に接続され、環状に配置された複数の人工羽根3の外周面を周回するように配置された補強用固定部材としての周回紐状体14をさらに備える。この点において、図46に示すシャトルコック1は、図1に示したシャトルコック1と異なる。 (Embodiment 2)
Referring to FIG. 46,
図48を参照して、本発明の実施の形態3に従ったシャトルコック1は、基本的には図1に示したシャトルコック1と同様の構成を備える。しかし、網掛け紐状体13が、複数の人工羽根3の軸7の延在方向に関して3段設けられている。この点において、図48に示すシャトルコック1は、図1に示したシャトルコック1と異なる。 (Embodiment 3)
Referring to FIG. 48,
図49を参照して、本発明の実施の形態4に従ったシャトルコック1は、基本的には図1に示したシャトルコック1と同様の構成を備える。しかし、網掛け紐状体13のかがり糸構造の外周面を覆う被覆部材をさらに備えている。以上の点において、図49に示すシャトルコックのかがり糸部分を示す網掛け紐状体13は、本発明の実施の形態1のかがり糸部分を示す網掛け紐状体13と異なる。 (Embodiment 4)
Referring to FIG. 49,
図50および図51を参照して、本発明に従ったシャトルコックの実施の形態5は、基本的には図1に示したシャトルコック1と同様の構成を備えるが、人工羽根3の構造が図1に示したシャトルコック1とは異なっている。すなわち、図50および図51に示した人工羽根3は、羽本体部5と、当該羽本体部5に接続された軸7とからなる。軸7は、羽本体部5から突出するように配置された羽軸部8と、羽本体部5のほぼ中央部において羽本体部5に接続された固着軸部10とからなる。羽軸部8と固着軸部10とは同一線状に延びるように配置され、1つの連続した軸7を構成している。軸7は、図51に示すように、軸7の延在方向にほぼ垂直な方向における断面形状が十字状となっている。つまり、図51に示すように、軸7の断面形状では、中心軸部21から図51の上下方向に、相対的に厚い厚み(図51における左右方向(あるいは中心軸部21を中心とした同心円の円周方向)における厚み)を有する厚肉リブ部22aが突出するように形成されている。 (Embodiment 5)
Referring to FIGS. 50 and 51,
Claims (10)
- 半球状のベース本体と、
羽部および前記羽部に接続された軸を含み、環状に配置されるとともに部分的に重なるように、前記ベース本体に固定された複数の人工羽根と、
複数の前記人工羽根の前記軸を互いに固定する固定部材とを備え、
前記軸の前記固定部材と対向する表面の少なくとも一部に可撓性部材が配置され、
前記固定部材が前記可撓性部材を押圧することにより、前記可撓性部材が変形した状態で、前記固定部材と前記可撓性部材とが接着部材を介して接続固定されている、バドミントン用シャトルコック。 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. - 半球状のベース本体と、
羽部および前記羽部に接続された軸を含み、環状に配置されるとともに部分的に重なるように、前記ベース本体に固定された複数の人工羽根と、
複数の前記人工羽根の前記軸を互いに固定する固定部材とを備え、
前記軸の前記固定部材と対向する表面の少なくとも一部に多孔質または繊維質からなる補強部材が配置され、
前記固定部材と前記補強部材とが、接着部材を介して接続固定されており、
前記接着部材の少なくとも一部が前記補強部材に含浸している、バドミントン用シャトルコック。 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. - 前記固定部材が前記補強部材を押圧することにより、前記補強部材が変形した状態で固定されている、請求の範囲第2項に記載のバドミントン用シャトルコック。 The shuttlecock for badminton according to claim 2, wherein the reinforcing member is fixed in a deformed state by pressing the reinforcing member.
- 半球状のベース本体と、
羽部および前記羽部に接続された軸を含み、環状に配置されるとともに部分的に重なるように、前記ベース本体に固定された複数の人工羽根と、
複数の前記人工羽根の前記軸を互いに固定する固定部材とを備え、
前記軸の前記固定部材と対向する表面の少なくとも一部には、可撓性部材が前記軸と一体に形成され、
前記固定部材が前記可撓性部材を押圧することにより、前記可撓性部材が変形した状態で、前記固定部材と前記可撓性部材とが接着部材を介して接続固定されている、バドミントン用シャトルコック。 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. - 前記固定部材は、複数の前記人工羽根の前記軸を繋ぐように巻きつけられた紐状体を含む、請求の範囲第1~4項のいずれか1項に記載のバドミントン用シャトルコック。 The badminton shuttlecock 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.
- 前記固定部材はFRP化されている、請求の範囲第1~4項のいずれか1項に記載のバドミントン用シャトルコック。 The badminton shuttlecock according to any one of claims 1 to 4, wherein the fixing member is FRP.
- 前記固定部材は熱硬化性樹脂を含む、請求の範囲第1~4項のいずれか1項に記載のバドミントン用シャトルコック。 The badminton shuttlecock according to any one of claims 1 to 4, wherein the fixing member includes a thermosetting resin.
- 前記固定部材は、ガラスまたはアラミド繊維からなる糸を含む、請求の範囲第1~4項のいずれか1項に記載のバドミントン用シャトルコック。 The badminton shuttlecock according to any one of claims 1 to 4, wherein the fixing member includes a thread made of glass or an aramid fiber.
- 前記固定部材に接続され、環状に配置された前記複数の人工羽根の外周面を周回するように配置された補強用固定部材をさらに備える、請求の範囲第1~4項のいずれか1項に記載のバドミントン用シャトルコック。 5. The reinforcing fixing member according to any one of claims 1 to 4, further comprising a reinforcing fixing member connected to the fixing member and arranged so as to go around an outer peripheral surface of the plurality of artificial feathers arranged in an annular shape. The shuttlecock for badminton as described.
- 前記固定部材の外周面を覆う被覆部材をさらに備える、請求の範囲第1~4項のいずれか1項に記載のバドミントン用シャトルコック。 The badminton shuttlecock according to any one of claims 1 to 4, further comprising a covering member that covers an outer peripheral surface of the fixing member.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010528719A JPWO2010029914A1 (en) | 2008-09-09 | 2009-09-08 | Badminton shuttlecock |
EP09813060.2A EP2338576B1 (en) | 2008-09-09 | 2009-09-08 | Badminton shuttlecock |
CN2009801359076A CN102149435A (en) | 2008-09-09 | 2009-09-08 | Badminton shuttlecock |
Applications Claiming Priority (2)
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JP2008-231063 | 2008-09-09 | ||
JP2008231063 | 2008-09-09 |
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WO2010029914A1 true WO2010029914A1 (en) | 2010-03-18 |
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PCT/JP2009/065650 WO2010029914A1 (en) | 2008-09-09 | 2009-09-08 | Badminton shuttlecock |
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EP (1) | EP2338576B1 (en) |
JP (1) | JPWO2010029914A1 (en) |
KR (1) | KR20110056501A (en) |
CN (1) | CN102149435A (en) |
WO (1) | WO2010029914A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103068448A (en) * | 2010-08-20 | 2013-04-24 | 尤尼克斯株式会社 | Artificial feathers for shuttlecocks, shuttlecock and method for producing artificial shuttlecock feathers |
CN103566557A (en) * | 2012-07-20 | 2014-02-12 | 刘雪燕 | Badminton ball and simulating feather for badminton ball |
CN103933717A (en) * | 2014-04-04 | 2014-07-23 | 安徽华翎羽毛制品有限公司 | Wing of grafting type shuttlecock |
CN105251191A (en) * | 2015-10-07 | 2016-01-20 | 吴斌 | Shuttlecock based on secondary utilization of waste and old shuttlecock |
WO2017213039A1 (en) * | 2016-06-10 | 2017-12-14 | 美津濃株式会社 | Shuttlecock |
Families Citing this family (6)
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KR101141021B1 (en) * | 2011-10-22 | 2012-05-03 | 김상웅 | Shuttlecock |
WO2013058588A1 (en) * | 2011-10-22 | 2013-04-25 | Kim Sang-Woong | Method for manufacturing shuttlecock feathers and shuttlecock |
CN106540424A (en) * | 2011-11-28 | 2017-03-29 | 安徽三才体育用品有限公司 | A kind of shuttlecock and preparation method thereof |
CN103127684B (en) * | 2011-11-28 | 2016-08-10 | 戴见霖 | The attachment means of shuttlecock |
KR101220576B1 (en) * | 2012-07-17 | 2013-01-10 | 김상웅 | Manufacturing method for shuttlecock |
CN105944352A (en) * | 2016-07-04 | 2016-09-21 | 郑嘉雯 | Badminton firm in adhesion |
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- 2009-09-08 KR KR1020117005132A patent/KR20110056501A/en not_active Application Discontinuation
- 2009-09-08 CN CN2009801359076A patent/CN102149435A/en active Pending
- 2009-09-08 JP JP2010528719A patent/JPWO2010029914A1/en active Pending
- 2009-09-08 WO PCT/JP2009/065650 patent/WO2010029914A1/en active Application Filing
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103068448A (en) * | 2010-08-20 | 2013-04-24 | 尤尼克斯株式会社 | Artificial feathers for shuttlecocks, shuttlecock and method for producing artificial shuttlecock feathers |
US8992355B2 (en) | 2010-08-20 | 2015-03-31 | Yonex Kabushiki Kaisha | Artificial feather for shuttlecock, shuttlecock, and method of manufacturing artificial feather for shuttlecock |
CN103566557A (en) * | 2012-07-20 | 2014-02-12 | 刘雪燕 | Badminton ball and simulating feather for badminton ball |
CN103933717A (en) * | 2014-04-04 | 2014-07-23 | 安徽华翎羽毛制品有限公司 | Wing of grafting type shuttlecock |
CN105251191A (en) * | 2015-10-07 | 2016-01-20 | 吴斌 | Shuttlecock based on secondary utilization of waste and old shuttlecock |
WO2017213039A1 (en) * | 2016-06-10 | 2017-12-14 | 美津濃株式会社 | Shuttlecock |
JPWO2017213039A1 (en) * | 2016-06-10 | 2019-05-09 | 美津濃株式会社 | Shuttlecock |
TWI730113B (en) * | 2016-06-10 | 2021-06-11 | 日商美津濃股份有限公司 | badminton |
Also Published As
Publication number | Publication date |
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CN102149435A (en) | 2011-08-10 |
EP2338576B1 (en) | 2013-11-13 |
JPWO2010029914A1 (en) | 2012-02-02 |
EP2338576A1 (en) | 2011-06-29 |
KR20110056501A (en) | 2011-05-30 |
EP2338576A4 (en) | 2012-07-11 |
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