EP2769754A1 - Volant de badminton - Google Patents

Volant de badminton Download PDF

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Publication number
EP2769754A1
EP2769754A1 EP14154253.0A EP14154253A EP2769754A1 EP 2769754 A1 EP2769754 A1 EP 2769754A1 EP 14154253 A EP14154253 A EP 14154253A EP 2769754 A1 EP2769754 A1 EP 2769754A1
Authority
EP
European Patent Office
Prior art keywords
vane
portions
vane portions
artificial
shuttlecock
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14154253.0A
Other languages
German (de)
English (en)
Inventor
Kensuke Tanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yonex KK
Original Assignee
Yonex KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yonex KK filed Critical Yonex KK
Publication of EP2769754A1 publication Critical patent/EP2769754A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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

Definitions

  • the present invention relates to shuttlecocks using artificial feathers.
  • natural feather shuttlecocks have a structure using approximately 16 natural feathers of geese, ducks, or the like, and the ends of the rachises of the feathers are embedded into the hemispherical platform (base portion) made of cork covered with skin, or the like. Then, the feather used for natural feather shuttlecocks has a feature of the specific gravity being small and being extremely light. A feather has high rigidity and thereby a unique flight performance and a comfortable feel when hitting natural feather shuttlecocks can be perceived.
  • intersection of the adjacent vane portions depends on an overlap amount between the vane portions, and the intersection can be considered to be able to be suppressed by reducing the overlap amount.
  • the overlap amount is reduced, clearance between the adjacent vane portions is increased, thereby affecting the flight distance and the number of revolutions. For this reason, there is a possibility of being unable to acquire stable flight characteristics.
  • the present invention has been made in view of such circumstances, and an object thereof is to provide a shuttlecock capable of acquiring stable flight characteristics regardless of an overlap amount between vane portions.
  • a shuttlecock includes: a base portion; and a plurality of artificial feathers arranged in an annular form on the base portion, the artificial feathers respectively including vane portions and rachis portions supporting the vane portions, each of the vane portions having a protruding portion protruding, toward an other one of the vane portions adjacent to the each of the vane portions, in a direction intersecting a direction of a face of the other one of the vane portions.
  • a shuttlecock which includes: a base portion; and a plurality of artificial feathers arranged in an annular form on the base portion, the artificial feathers respectively including vane portions and rachis portions supporting the vane portions, each of the vane portions having a protruding portion protruding, toward an other one of the vane portions adjacent to the each of the vane portions, in a direction intersecting a direction of a face of the other one of the vane portions.
  • each of the vane portions has a cut-out portion at an end portion in a width direction thereof.
  • the protruding portion is provided at the end portion of each of the vane portions.
  • the protruding portion and the cut-out portion may be formed by bending each of the vane portions of a sheet type.
  • the vane portions may be respectively formed integrally with the rachis portions.
  • Fig. 1 and Fig. 2 are external views for explaining a basic structure of an artificial shuttlecock 1 including artificial feathers 10.
  • Fig. 1 is a perspective view of the artificial shuttlecock 1 when viewed from a base portion 2 side.
  • Fig. 2 is a perspective view of the artificial shuttlecock 1 when viewed from the artificial feather 10 side.
  • the artificial shuttlecock 1 includes the base portion 2, the plurality of artificial feathers 10 imitating natural feathers, and a string-like member 3 for fixing the artificial feathers 10 to each other.
  • the base portion 2 is structured such that, for example, a cork base is covered with a thin layer.
  • the base portion 2 has a hemispherical shape having a diameter of from 25 mm to 28 mm, and has a flat face.
  • the bases of a plurality of artificial feathers 10 are embedded in an annular form along the circumference of this flat face.
  • a plurality of artificial feathers 10 are arranged in such a manner that each clearance therebetween increases with distance from the base portion 2.
  • each of the artificial feathers 10 is arranged in such a manner as to overlap with another one of the artificial feathers 10 adjacent thereto.
  • a skirt portion 4 is formed with a plurality of artificial feathers 10.
  • a plurality of artificial feathers 10 are fixed to each other with the string-like member 3 (for example, a cotton thread).
  • Fig. 3 is an external view of an artificial feather 10 in a comparative example 1. Further, Fig. 4A to Fig. 4C are explanatory diagrams of the artificial feather 10 in the comparative example 1.
  • Fig. 4A is a plan view of the artificial feather 10 when viewed from the front side.
  • Fig. 4B is a plan view of the artificial feather 10 when viewed from the back side.
  • Fig. 4C is a diagram of the artificial feather 10 when viewed from above. Note that the members which have already been described are denoted by the same reference numerals.
  • the artificial feather 10 includes a vane portion 112 and a rachis portion 14.
  • the vane portion 112 is a portion corresponding to a vane of a natural feather
  • the rachis portion 14 is a portion corresponding to a rachis of a natural feather.
  • an up-and-down direction is defined along the rachis portion 14, and the side on which the vane portion 112 is provided is defined as "up” while the opposite side is defined as "down”.
  • a right-and-left direction is defined along a direction (width direction) of the vane portion 112 extending from the rachis portion 14.
  • front and back are defined on the basis of a state where the artificial feather 10 has been embedded into the base portion 2.
  • components may be described according to the up and down, the right and left, and the front and back, which have been defined in the figures.
  • the vane portion 112 of the comparative example 1 is a member of a sheet form imitating the shape of the vane of a natural feather.
  • the vane portion 112 can be structured using, for example, a nonwoven fabric, a resin or the like.
  • a reinforcement coating is formed on a surface of the vane portion 112, in order to prevent fibers of a nonwoven fabric from being loosen when the shuttlecock is hit.
  • the reinforcement coating can be formed by applying a resin, and various methods are employed therefor such as a dip method, a spray method, a roll coat method and the like.
  • the reinforcement coating may be formed on a single side of the vane portion 112 or both sides thereof. Further, the reinforcement coating may be formed on the whole surface of the vane portion 112 or a part thereof.
  • the rachis portion 14 is a long and thin member, imitating the shape of a rachis of a natural feather, as well as the member supporting the vane portion 112.
  • the rachis portion 14 includes a vane support portion 14A supporting an area from the upper end to the lower end of the vane portion 112, and a calamus portion 14B protruding from the vane portion 112.
  • the calamus portion 14B is a portion corresponding to a calamus of a natural feather (note that this part is also designated as a quill).
  • the lower end of the calamus portion 14B is embedded in the base portion 2 and fixed to the base portion 2.
  • the rachis portion 14 in the figures is illustrated in a quadrangle shape in cross section.
  • the rachis portion 14 may be in a rhombic shape, a circular shape, or an elliptical shape in cross section.
  • the rachis portion 14 may be in different shapes in the up-and-down direction so as to be, for example, in a circular shape on the upper side and a quadrangle shape in the lower side.
  • the rachis portion 14 in the figures is formed such that the size of a cross sectional shape thereof becomes larger toward the lower side thereof.
  • the size of the cross sectional shape may be uniform in the up-and-down direction without any change, or the size of the cross sectional shape may be changed in a smooth manner.
  • the rachis portion 14 and the vane portion 112 may be separated or integrated.
  • the rachis portion 14 and the vane portion 112 can be integrally molded by injection molding using a mold. Further, when they are separated, the vane portion 112 may be supported on the back side of the vane support portion 14A, or the vane portion 112 may be supported on the front side of the vane support portion 14A. Further, the vane portion 112 may be structured with two sheets and may be structured such that the vane support portion 14A is sandwiched between two sheets of the vane portion 112. Further, the vane portion 112 may be embedded into the inside of the vane support portion 14A.
  • intersection possibly occurs which indicates that relationship of the front and back (layered state) between the adjacent vane portions 112 becomes reversed relationship when the shuttlecock is hit. If the intersection occurs, it is difficult to recover to their initial front-and-back relationship even when the shuttlecock continues being hit, resulting in a problem of an unstable flight trajectory.
  • a vane since a vane is not in a film state but an assembly of feather body called barbs growing from a rachis, the barbs of the vane slip through the barbs of another vane adjacent thereto even if the intersection occurs, thereby being able to easily recover from the intersection state to the initial state while the shuttlecock is being hit.
  • Fig. 5 is a schematic diagram of a plurality of vane portions 112 in the comparative example 1 when viewed from above. As illustrated in the figure, a plurality of vane portions 112 are arranged in such a manner that each vane portion overlaps with another vane portion with an angle thereof being gradually changed. Note that, in the following description, an overlap amount between the adjacent vane portions is given as T. Further, clearance between the adjacent vane portions is given as S.
  • intersection preventing works require troublesome tasks.
  • a cut-out portion is provided in a vane portion, thereby making an overlap amount T between the adjacent vane portions smaller than that in the comparative example 1.
  • Fig. 6 is a perspective view illustrating an arrangement state of vane portions 212 of an artificial shuttlecock 1 in the comparative example 2.
  • Fig. 7 is a schematic top view of an arrangement state of the vane portions 212 in the comparative example 2. Note that Fig. 6 and Fig. 7 illustrate only a part of a plurality of vane portions 212 for convenience of description. Further, since the structure thereof is similar to that in the comparative example 1 with the exception of the vane portions, the description thereof will be omitted.
  • the vane portion 212 in the comparative example 2 is formed with a cut-out portion 212a at an end on one side in the width direction thereof (right-and-left direction).
  • the length of each of the vane portions 212 in the width direction is shorter than the length of the vane portion 112 in the width direction in the comparative example 1.
  • each overlap amount T between the adjacent vane portions 212 is smaller than each overlap amount T in the comparative example 1 ( Fig. 5 ).
  • the stable flight characteristics are to be obtained regardless of the overlap amount, by appropriately adjusting the clearance S.
  • Fig. 8 is a top view illustrating an arrangement state of vane portions 12 of an artificial shuttlecock 1 according to an embodiment of the present invention.
  • Fig. 9 is a perspective view illustrating an arrangement state of the vane portions 12 of the artificial shuttlecock 1 according to an embodiment of the present invention.
  • Fig. 10 and Fig. 11 are side views illustrating an arrangement state of the vane portions 12 of the artificial shuttlecock 1 according to an embodiment of the present invention.
  • Fig. 12A to Fig. 12C are explanatory diagrams illustrating an artificial feather 10 of the artificial shuttlecock 1 according to an embodiment of the present invention.
  • Fig. 12A is a plan view of the artificial feather 10 when viewed from the front side.
  • Fig. 12B is a plan view of the artificial feather 10 when viewed from the back side.
  • Fig. 12C is an A-A cross-sectional diagram in Fig. 12A and Fig. 12B . Note that the members which have already been described are denoted by the same reference numerals, and the descriptions thereof will be omitted.
  • the vane portion 12 has a cut-out portion 12a similar to the cut-out portion 212a of the vane portions 212 in the comparative example 2.
  • This cut-out portion 12a is in such a shape that an overlap between the adjacent vane portions 12 is reduced.
  • the cut-out portion 12a is provided in a curved shape (concave shape) corresponding to a curved shape (convex shape) of a right-side end portion of the vane portion 12.
  • the vane portion 12 has a flap portion 12b (corresponding to a protruding portion) at a left end on the front side thereof.
  • This flap portion 12b protrudes toward another vane portion 12 adjacent to the vane portion 12 (more specifically, toward a direction intersecting a direction of a face of another vane portion 12 adjacent to the vane portion 12).
  • an angle ⁇ formed between the face of the vane portion 12 and the flap portion 12b in Fig. 12C is 90 degrees (with an error of plus or minus several degrees).
  • Fig. 13 is a schematic top view of an arrangement state of the vane portions 12 according to an embodiment of the present invention when viewed from above.
  • the vane portion 12 is provided with the cut-out portion 12a and the flap portion 12b.
  • the length of each vane portion 12 in the width direction (right-and-left direction) is reduced by the cut-out portion 12a being provided, and an overlap amount T becomes smaller than that in the comparative example 1 ( Fig. 5 ).
  • the flap portion 12b is provided, the clearance S between the adjacent vane portions 12 can be adjusted more appropriately than that in the comparative example 2 ( Fig. 7 ). For this reason, a flight distance and rotation can be improved, thereby being able to obtain stable flight characteristics.
  • thermoplastic resin is used for the vane portion 12. Further, the thermoplastic resin is used for the rachis portion 14 as well. Then, the components of the artificial feather 10 including the vane portion 12 is integrally manufactured (molded) with a mold, not shown, using well-known injection molding techniques such as two-color molding and insert molding. By doing so, manufacturing costs can be reduced, and further an overlap amount T and clearance S can be improved in accuracy.
  • the artificial shuttlecock 1 includes the base portion 2 and a plurality of artificial feathers 10 arranged in an annular form on the base portion 2, and the artificial feathers 10 each include the vane portion 12 and the rachis portion 14 supporting the vane portion 12.
  • Each vane portion 12 has the cut-out portion 12a, and has the flap portion 12b at an end portion thereof on the cut-out portion 12a side, the flap portion 12b protruding toward another vane portion 12 adjacent to such each vane portion 12.
  • the clearance S between the adjacent vane portions 12 can be appropriately adjusted.
  • stable flight characteristics flight distance and rotation, etc.
  • the cut-out portion 12a is provided in the vane portion 12 at one end in the width direction thereof, it is not limited thereto.
  • such cut-out portions that an overlap amount between the adjacent vane portions is reduced may be respectively provided at both ends of each of the vane portions in the width direction.
  • an overlap amount T can easily be reduced.
  • the cut-out portion 12a is not necessarily provided.
  • a width of the vane portion 12 may be reduced (narrowed) to such an extent that the adjacent vane portions 12 manage to overlap each other, and the flap portion 12b may be provided at an end of the vane portion in the width direction.
  • the flap portion 12b is provided on the front side of the vane portion 12, but it is not limited thereto.
  • it may be provided on the back side of the vane portion 12 (specifically, the back side of the end portion not formed with the cut-out portion 12a).
  • the flap portion 12b is provided along the end portion of the vane portion 12, but it is not limited thereto.
  • it may be arranged in parallel to the end portion and slightly closer to the rachis portion 14.
  • it may be arranged not along the end portion (not in a curved manner) but linearly.
  • the cut-out portion 12a is formed in a concave shape in the vane portion 12, but it is not limited thereto. For example, it may be formed linearly. Note that, since an end portion of the vane portion 12 on a side not provided with the flap portion 12b is in a convex shape, the cut-out portion in a concave shape can make an overlap amount T smaller.
  • Fig. 14 is an explanatory diagram illustrating a shape of a vane portion 12 in a variation 1.
  • the cut-out portion 12a is formed only in an upper portion in the vane portion 12.
  • an overlap amount T (diagonally shaded portion in the figure) between the adjacent vane portions 12 is not uniform over the positions in the overlap amount T in the up-and-down direction.
  • the overlap amount T is increased around the center of the vane portion 12 in the up-and-down direction.
  • the overlap amount T between the adjacent vane portions 12 does not have to be uniform in the up-and-down direction.
  • structure is not limited to such structure as illustrated in Fig. 14 but, for example, the cut-out portion 12a may be formed at a position opposite to that in Fig. 14 (in other words, a lower portion of the vane portion 12).
  • the flap portion 12b should be provided along the end portion on the cut-out portion 12a side in the vane portion 12.
  • Fig. 15 is an explanatory diagram illustrating a shape of the vane portion 12 in a variation 2.
  • the vane portion 12 in the variation 2 varies, in protruding amount (protrusion length) of the flap portion 12b, with the upper side and the lower side.
  • the clearance S between the adjacent vane portions 12 is not uniform over the positions in the clearance S in the up-and-down direction.
  • the clearance S increases with decreasing distance from a lower end, and the clearance S decreases with decreasing distance from an upper end.
  • an amount of the clearance S may vary with the position in the clearance S in the up-and-down direction.
  • structure in which the clearance S varies with the position in the vane portions is not limited to this example.
  • an inverted case may be possible (that is, the clearance S decreases with decreasing distance from the lower end, and the clearance S increases with decreasing distance from the upper end).
  • Fig. 16 is an explanatory diagram illustrating a skirt portion 4 in a variation 3.
  • the skirt portion 4 is integrally formed by injection molding as illustrated in Fig. 16 .
  • each of the cut-out portion 12a and the flap portion 12b is formed by folding (bending) the vane portion 12 of a sheet type (in a planner state).
  • Fig. 17A and Fig. 17B are explanatory diagrams illustrating the vane portion 12 in the variation 4.
  • Fig. 17A is a diagram illustrating a state before folding
  • Fig 17B is a diagram illustrating a state after folding.
  • the flap portion 12b and the cut-out portion 12a are formed by folding back the vane portion 12 of a sheet type of Fig. 17A by making a valley fold along a dotted line of the vane portion 12 of Fig. 17A .
  • the cut-out portion 12a and the flap portion 12b may be formed by folding back the vane portion 12 of a planner state. Note that when the flap portion 12b is formed as in this variation 4, it is desirable that an angle ⁇ of Fig. 12C is a sharp angle.

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  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Toys (AREA)
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EP14154253.0A 2013-02-20 2014-02-07 Volant de badminton Withdrawn EP2769754A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013030933A JP2014158603A (ja) 2013-02-20 2013-02-20 シャトルコック

Publications (1)

Publication Number Publication Date
EP2769754A1 true EP2769754A1 (fr) 2014-08-27

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EP14154253.0A Withdrawn EP2769754A1 (fr) 2013-02-20 2014-02-07 Volant de badminton

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EP (1) EP2769754A1 (fr)
JP (1) JP2014158603A (fr)
CN (1) CN104001318A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020137804A (ja) * 2019-02-28 2020-09-03 ヨネックス株式会社 シャトルコック

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5976907B1 (ja) * 2015-08-17 2016-08-24 株式会社コスモ精機 バドミントン用シャトル
JP6756517B2 (ja) * 2016-05-09 2020-09-16 ヨネックス株式会社 シャトルコック用人工羽根、及び、シャトルコック
KR102482347B1 (ko) * 2020-03-04 2022-12-29 이기용 배드민턴 셔틀콕용 인조깃털 및 이의 제조방법

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2338274A (en) * 1941-02-28 1944-01-04 Charles R Yancey Game missile
GB1505467A (en) * 1975-09-12 1978-03-30 Goldfarb A Throw and catch toy
JP2009160267A (ja) 2008-01-08 2009-07-23 Mizuno Corp バドミントン用シャトルコック
WO2012033068A1 (fr) * 2010-09-06 2012-03-15 ヨネックス株式会社 Plume artificielle pour volant et volant

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2338274A (en) * 1941-02-28 1944-01-04 Charles R Yancey Game missile
GB1505467A (en) * 1975-09-12 1978-03-30 Goldfarb A Throw and catch toy
JP2009160267A (ja) 2008-01-08 2009-07-23 Mizuno Corp バドミントン用シャトルコック
WO2012033068A1 (fr) * 2010-09-06 2012-03-15 ヨネックス株式会社 Plume artificielle pour volant et volant

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020137804A (ja) * 2019-02-28 2020-09-03 ヨネックス株式会社 シャトルコック
EP3932500A4 (fr) * 2019-02-28 2022-11-09 Yonex Kabushiki Kaisha Volant de badminton
JP7267035B2 (ja) 2019-02-28 2023-05-01 ヨネックス株式会社 シャトルコック

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Publication number Publication date
JP2014158603A (ja) 2014-09-04
CN104001318A (zh) 2014-08-27

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