JP3971852B2 - Manufacturing method of shuttlecock - Google Patents

Manufacturing method of shuttlecock Download PDF

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Publication number
JP3971852B2
JP3971852B2 JP23119598A JP23119598A JP3971852B2 JP 3971852 B2 JP3971852 B2 JP 3971852B2 JP 23119598 A JP23119598 A JP 23119598A JP 23119598 A JP23119598 A JP 23119598A JP 3971852 B2 JP3971852 B2 JP 3971852B2
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JP
Japan
Prior art keywords
adhesive
blade
shuttlecock
hole
base
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.)
Expired - Fee Related
Application number
JP23119598A
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Japanese (ja)
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JP2000042157A (en
Inventor
良司 樋口
寿優 竹中
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.)
Mizuno Corp
Original Assignee
Mizuno Corp
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 Mizuno Corp filed Critical Mizuno Corp
Priority to JP23119598A priority Critical patent/JP3971852B2/en
Publication of JP2000042157A publication Critical patent/JP2000042157A/en
Application granted granted Critical
Publication of JP3971852B2 publication Critical patent/JP3971852B2/en
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Description

【0001】
【産業上の利用分野】
本発明は、シャトルコックの製造方法の改善に関するものである。
【0002】
【従来の技術】
一般にシャトルコックの構造としては、図1に示すようにコルクなどで形成された半球状のベース2の上面2aに天然の水鳥や陸鳥で形成された羽根3を14〜16枚が環状に植立され、それらは接着剤7で固定されている。
又、前記羽根3は、その羽軸3bを周面に沿って糸でかがりつけられ、両者は接着剤を塗布することにより補強された構造となっている。
従来、前記羽根3をベース2の上面2aに植立する方法としては、まずベース2の上面2aに羽根3の羽軸3bを挿入するための孔4を14〜16個環状に穿設する。次に羽根3の羽軸3bを前記孔4に順次挿入植立し、前記羽軸3bが挿入植立された孔4の表面付近に接着剤を流し込み固定する。
前記植立された羽根3の羽軸3bは、周面に沿って、綿などの糸5で環状にかがりつけられて補強され、さらに前記かがりつけられた糸5および羽軸3bには、接着剤7が塗布され補強されている。
【0003】
【発明が解決しようとする課題】
前記従来のシャトルコックの製造方法においては、以下の問題点があった。
すなわち、ベース2の上面2aに穿設した孔4に羽軸3bを挿入し、前記孔4に接着剤を流し込んで固定するのであるが、この時、図4(イ)に示すように、接着剤の粘度が高いと孔4の下部にまで回り込むことができず、羽根がしっかり固定されないため耐久性に劣る。
従って、比較的粘度の低い接着剤が用いられるが、図4(ロ)に示すように粘度が低いと孔4の下部にまで浸透し、しっかり固定できる反面、接着剤が上面2aの環状に穿設された孔の内側部にまでたれ広がる。すなわち、ベースの上面2a全面が接着剤により覆われることになってしまう。
【0004】
シャトルを打撃した時には、羽根3が変形し戻る運動を繰り返している。それに伴いベース2も変形→戻りを繰り返しているが、前記したように、接着剤7が、ベース2の上面2a全面を覆うと接着剤7が硬化すると同時に前記上面2aも固くなってしまい、打撃時にベース2は変形せず羽根3のみが変形→戻りを繰り返すことになり、羽軸3bに応力が集中し、そのため羽軸3bが折れ易いという問題点があった。
【0005】
又、羽根3を植立後、羽軸3bを周面に沿って、糸でかがりつけた後、前記、羽軸3bと糸の部分に接着剤をスプレー等で塗布して補強する際にも、接着剤7がベース2の上面2aに付着して固くなってしまうという問題点があった。
そこで本発明は、前記問題点を改善し、耐久性に優れたシャトルコックを製造する方法を提供する。
【0006】
【問題点を解決するための手段】
前記目的を達成するために請求項1の発明は、半球状のベースの上面に孔を環状に穿設し、前記孔に羽根を植立して接着剤により固定するシャトルコックの製造方法において、 前記環状に穿設された孔の内側部を予め軟質材からなるカバー部材を貼着して覆った後、羽根を植立して接着剤により固定することを特微とするシャトルコックの製造方法とした。
【0007】
また、請求項2の発明は、請求項1の製造方法において、前記カバー部材は、貼着面に対応する表面側に剥離紙が添付された両面粘着材であることを特徴とする請求項1記載のシャトルコックの製造方法とした。
【0008】
【発明の実施の形態】
本発明を図面に基づき詳しく説明する。なお、記号は従来と同じ部分は、従来と同じ符号を用いた。
図1は本発明の方法により製造されたシャトルコック1の外観図で、図2は羽根を植立する方法を説明する概略図、図3は、A−A線切断端面説明図である。本発明の方法により製造されたシャトルコック1は、コルク等で形成されたベース2と、該ベース2の上面2aに天然の水鳥又は陸鳥等の羽根を加工して形成された羽毛3a、3a・・、が環状に14〜16枚植立されて成る羽根3からなる構造を有しており、前記環状に植立された羽根3の羽軸3bが挿入固着されている前記上面2aの前記羽軸3bの内側部には、軟質材からなるカバー部材6が貼着された構造となっている。
【0009】
また、前記羽根3の羽軸3bには、その周面に沿って、糸5がかがり付けられ、前記羽軸3bと糸5は、接着剤により固定され羽根3を補強している。これら羽根3を植立固定する接着剤および、羽軸3bとかがり糸5を固定する接着剤は、シャトルコックの保形と補強の役目をするものであるから、セルローズ系接着剤、酢酸ビニル系接着剤などの塗布後硬化するものが使用される。
【0010】
前記シャトルコック1を製造するには、図2に示すように、まずコルク等で形成されたベース2の上面2aに、羽根3の羽軸3bを挿入するための孔4を穿設する。前記孔4は、植立される羽根3の数に応じて穿設され、上面2aの外形状に沿って環状に穿設される。
そして、前記環状の孔4の内側部全体を覆うように軟質材からなり、前記環状の孔4に沿った形状である円板形状をしたカバー部材6が貼着される。その後、図3に示すように、前記孔4に羽根3の羽軸3bが挿入され、該挿入された孔4に接着剤7を流し込み塗布し、前記接着剤7を硬化させてシャトルコック1とする。
従って、前記接着剤7を孔4に塗布した時、孔4の付近に溢れた接着剤7は、カバー部材6が貼着されているので孔4の内側部に流れ込むことはなく、ベース2の上面2aが余分な接着剤の付着により固くなるのを防止でき、打球時にベース2と羽根3が共に変形することを阻害しないから、耐久性が向上する。
【0011】
本発明に使用されるカバー部材6は、打球時のベース2の変形に追随できる程度の軟らかさを有する軟質材から成り、かつ、羽軸3bを孔4に固定するために接着剤7を塗布した時、接着剤7がカバー部材6と該カバー部材6が貼着しているベース2の上面2aとの隙間に流れ込まない程度の粘着力を有している。さらに、カバー部材6は、接着剤7が前記カバー部材6厚みを越えて内側部に流れ込むことが無いように一定の厚み、例えば、30〜100μm程度の厚みを有するのが好ましい。
カバー部材6に用いる軟質材としては、接着剤を硬化させる際の加熱によっても固くならないもので、かつ、経時により硬化しないものであればよく、例えば、ブチルゴム、合成エラストマーなどが用いられ、これらを硬化しない接着剤や例えば両面テープなどの粘着剤により上面2aに貼着する。
【0012】
また、カバー部材6として、前記した厚みと、粘着力を有する粘着材を用いることができる。
前記粘着材としては、例えば、粘着テープが好ましく用いられる。前記粘着テープをカバー部材6として用いる場合には、図3に示すように、まずベース2の上面2aに粘着テープを貼着する。すると、貼着した面の反対側、すなわち上面に剥離紙等が存在することになるから、羽根3を植立して接着硬化後、羽軸3bをその周面に沿って環状に糸5でかがり付けて、前記両者に接着剤7を塗布することにより補強する際に飛び散る接着剤7が上面2aに貼着したカバー部材6の表面の剥離紙に付着することになり、前記接着剤を硬化後、表面の剥離紙を取り除けば、接着剤は上面2aに付着しない。前記剥離紙を取り除いた後には、マーク、模様等の装飾6aを貼り付ければ、デザイン上も良好となる。
従って、羽根3を硬化形成後、ベース2の上面2aが余分な接着剤の付着により固くなるのを防止でき、打球時にベース2と羽根3が共に変形することを阻害することがないので、羽根3への負担が軽減され耐久性が向上する。
【0013】
【発明の効果】
以上のように、本発明の方法によれば、羽根を植立し接着剤により固定する工程において、予め、羽根を植立した部分以外のベースの上面の部分、すなわち環状の孔の内側部をカバー部材により覆っておく方法であるから、固定用接着剤が前記環状に穿設された孔の内側部のベースの上面に付着することがないので、ベースの上面を固くすることが無く、シャトルコックの打撃時に羽根と共にベースの変形運動も阻害されないから、羽軸に応力が集中することがなく耐久性が向上したシャトルコックを製造することができる。
【図面の簡単な説明】
【図1】本発明のシャトルコックの斜視図。
【図2】本発明のシャトルコックの製造方法の一工程を説明する図。
【図3】図1のA−A線切断端面図。
【図4】従来のシャトルコックの問題点を説明する説明図。
【符号の説明】
1 シャトルコック
2 ベース
2a 上面
3 羽根
3a 羽毛
3b 羽軸
4 孔
5 糸
6 カバ−部材
6a 装飾
6b 両面テープ
7 接着剤
[0001]
[Industrial application fields]
The present invention relates to an improvement in a method for manufacturing a shuttlecock.
[0002]
[Prior art]
In general, the shuttlecock has a structure in which 14 to 16 blades 3 made of natural waterfowl or land birds are annularly planted on the upper surface 2a of a hemispherical base 2 made of cork or the like as shown in FIG. They are fixed with an adhesive 7.
Further, the blade 3 has a structure in which the blade shaft 3b is braided with a thread along the peripheral surface, and both are reinforced by applying an adhesive.
Conventionally, as a method of planting the blade 3 on the upper surface 2a of the base 2, first, 14 to 16 holes 4 for inserting the blade shaft 3b of the blade 3 are formed in an annular shape on the upper surface 2a of the base 2. Next, the blade shaft 3b of the blade 3 is sequentially inserted and planted in the hole 4, and an adhesive is poured and fixed near the surface of the hole 4 in which the blade shaft 3b is inserted and planted.
The wing shaft 3b of the planted blade 3 is reinforced by being circularly bent with a yarn 5 such as cotton along the circumferential surface, and further, the wing shaft 3b is bonded to the knitted yarn 5 and the blade shaft 3b. Agent 7 is applied and reinforced.
[0003]
[Problems to be solved by the invention]
The conventional shuttlecock manufacturing method has the following problems.
That is, the wing shaft 3b is inserted into the hole 4 drilled in the upper surface 2a of the base 2, and an adhesive is poured into the hole 4 to fix it. As shown in FIG. When the viscosity of the agent is high, it cannot go down to the lower part of the hole 4 and the blades are not firmly fixed, so that the durability is inferior.
Therefore, an adhesive having a relatively low viscosity is used. However, as shown in FIG. 4 (b), if the viscosity is low, the adhesive penetrates to the lower part of the hole 4 and can be firmly fixed. It spreads to the inside of the hole. That is, the entire upper surface 2a of the base is covered with the adhesive.
[0004]
When the shuttle is hit, the blade 3 is repeatedly deformed and returned. Accordingly, the base 2 is also repeatedly deformed and returned. However, as described above, when the adhesive 7 covers the entire upper surface 2a of the base 2, the adhesive 7 is cured and at the same time the upper surface 2a becomes hard, and the impact is reduced. Sometimes the base 2 is not deformed, and only the blade 3 is deformed and returned repeatedly, and stress concentrates on the blade shaft 3b, so that the blade shaft 3b is easily broken.
[0005]
Also, after the blade 3 is planted, the wing shaft 3b is bent along the peripheral surface with a thread, and then the adhesive is applied to the wing shaft 3b and the thread portion by spraying or the like to reinforce. There is a problem that the adhesive 7 adheres to the upper surface 2a of the base 2 and becomes hard.
Therefore, the present invention provides a method for improving the above problems and manufacturing a shuttlecock having excellent durability.
[0006]
[Means for solving problems]
In order to achieve the above object, the invention of claim 1 is a method for manufacturing a shuttlecock in which a hole is formed in an annular shape on the upper surface of a hemispherical base, and a blade is planted in the hole and fixed by an adhesive. A method for manufacturing a shuttlecock, characterized in that a cover member made of a soft material is attached and covered in advance to the inner side of the hole formed in an annular shape, and then blades are planted and fixed with an adhesive. It was.
[0007]
The invention according to claim 2 is the manufacturing method according to claim 1, wherein the cover member is a double-sided pressure-sensitive adhesive material having a release paper attached to the surface side corresponding to the sticking surface. It was set as the manufacturing method of the described shuttlecock.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described in detail with reference to the drawings. In addition, the same code | symbol as the conventional was used for the same part as the symbol.
FIG. 1 is an external view of a shuttlecock 1 manufactured by the method of the present invention, FIG. 2 is a schematic diagram for explaining a method for planting blades, and FIG. The shuttlecock 1 manufactured by the method of the present invention includes a base 2 formed of cork or the like, and feathers 3a and 3a formed by processing feathers of natural waterfowl or land birds on the upper surface 2a of the base 2 .. has a structure composed of 14 to 16 blades 3 which are annularly planted, and the upper surface 2a of the upper surface 2a to which the blade shaft 3b of the annularly planted blades 3 is inserted and fixed A cover member 6 made of a soft material is attached to the inner side of the wing shaft 3b.
[0009]
A yarn 5 is attached to the blade shaft 3b of the blade 3 along the peripheral surface thereof, and the blade shaft 3b and the yarn 5 are fixed by an adhesive to reinforce the blade 3. Since the adhesive for fixing the blades 3 and the adhesive for fixing the blade shaft 3b and the knitted yarn 5 serve to shape and reinforce the shuttlecock, a cellulose adhesive, a vinyl acetate type An adhesive that is cured after application is used.
[0010]
In order to manufacture the shuttlecock 1, as shown in FIG. 2, first, a hole 4 for inserting the blade shaft 3b of the blade 3 is formed in the upper surface 2a of the base 2 formed of cork or the like. The holes 4 are formed according to the number of blades 3 to be planted, and are formed in an annular shape along the outer shape of the upper surface 2a.
And the cover member 6 which consists of a soft material so that the whole inner part of the said cyclic | annular hole 4 may be covered, and was the disk shape which is a shape along the said cyclic | annular hole 4 is affixed. Thereafter, as shown in FIG. 3, the blade shaft 3 b of the blade 3 is inserted into the hole 4, and an adhesive 7 is poured and applied to the inserted hole 4 to harden the adhesive 7. To do.
Therefore, when the adhesive 7 is applied to the hole 4, the adhesive 7 overflowing in the vicinity of the hole 4 does not flow into the inner side of the hole 4 because the cover member 6 is adhered, and the base 2 Since the upper surface 2a can be prevented from becoming hard due to the adhesion of excess adhesive, and the base 2 and the blade 3 are not inhibited from being deformed at the time of hitting, durability is improved.
[0011]
The cover member 6 used in the present invention is made of a soft material that is soft enough to follow the deformation of the base 2 at the time of hitting the ball, and is coated with an adhesive 7 in order to fix the blade shaft 3b to the hole 4. Then, the adhesive 7 has such an adhesive force that it does not flow into the gap between the cover member 6 and the upper surface 2a of the base 2 to which the cover member 6 is adhered. Further, the cover member 6 preferably has a certain thickness, for example, a thickness of about 30 to 100 μm, so that the adhesive 7 does not flow into the inner portion beyond the thickness of the cover member 6.
The soft material used for the cover member 6 may be any soft material that does not become hardened by heating at the time of curing the adhesive and does not cure with time. For example, butyl rubber, synthetic elastomer, etc. are used. It sticks to the upper surface 2a with the adhesive which does not harden | cure or adhesives, such as a double-sided tape.
[0012]
Further, as the cover member 6, an adhesive material having the above-described thickness and adhesive force can be used.
As the adhesive material, for example, an adhesive tape is preferably used. When using the adhesive tape as the cover member 6, as shown in FIG. 3, first, the adhesive tape is attached to the upper surface 2 a of the base 2. Then, since release paper or the like is present on the opposite side of the attached surface, that is, the upper surface, after the blade 3 is planted and adhesively cured, the blade shaft 3b is annularly formed along the peripheral surface with the thread 5 The adhesive 7 which is scattered when it is reinforced by applying the adhesive 7 to the both sides adheres to the release paper on the surface of the cover member 6 adhered to the upper surface 2a, and the adhesive is cured. Then, if the release paper on the surface is removed, the adhesive does not adhere to the upper surface 2a. After removing the release paper, if a decoration 6a such as a mark or a pattern is pasted, the design can be improved.
Therefore, after the blade 3 is cured and formed, it is possible to prevent the upper surface 2a of the base 2 from becoming hard due to the adhesion of excess adhesive, and it is possible to prevent the base 2 and the blade 3 from being deformed together at the time of hitting. 3 is reduced and the durability is improved.
[0013]
【The invention's effect】
As described above, according to the method of the present invention, in the step of planting the blade and fixing with the adhesive, the portion of the upper surface of the base other than the portion in which the blade has been previously planted, that is, the inner portion of the annular hole is removed. Since it is a method of covering with the cover member, the fixing adhesive does not adhere to the upper surface of the base inside the annular hole, so that the upper surface of the base is not hardened and the shuttle Since the deformation movement of the base together with the blades is not hindered when the cock is struck, it is possible to manufacture a shuttlecock having improved durability without stress concentration on the blade shaft.
[Brief description of the drawings]
FIG. 1 is a perspective view of a shuttlecock of the present invention.
FIG. 2 is a view for explaining one step of a method for manufacturing a shuttlecock according to the present invention.
FIG. 3 is an end view taken along line AA in FIG. 1;
FIG. 4 is an explanatory diagram for explaining problems of a conventional shuttlecock.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Shuttlecock 2 Base 2a Upper surface 3 Feather 3a Feather 3b Feather shaft 4 Hole 5 Thread 6 Cover member 6a Decoration 6b Double-sided tape 7 Adhesive

Claims (2)

半球状のベースの上面に孔を環状に穿設し、前記孔に羽根を植立して接着剤により固定するシャトルコックの製造方法において、 前記環状に穿設された孔の内側部に、予め軟質材よりなるカバー部材を貼着して覆った後、羽根を植立して接着剤により固定することを特微とするシャトルコックの製造方法。In a manufacturing method of a shuttlecock in which a hole is formed in an annular shape on the upper surface of a hemispherical base, and a blade is planted in the hole and fixed by an adhesive, an inner portion of the hole formed in the annular shape is previously provided. A method for manufacturing a shuttlecock, characterized in that a cover member made of a soft material is attached and covered, and then blades are planted and fixed with an adhesive. 前記カバー部材は、両面粘着材であることを特徴とする請求項1記載のシャトルコックの製造方法。The method for manufacturing a shuttlecock according to claim 1, wherein the cover member is a double-sided adhesive material.
JP23119598A 1998-07-31 1998-07-31 Manufacturing method of shuttlecock Expired - Fee Related JP3971852B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23119598A JP3971852B2 (en) 1998-07-31 1998-07-31 Manufacturing method of shuttlecock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23119598A JP3971852B2 (en) 1998-07-31 1998-07-31 Manufacturing method of shuttlecock

Publications (2)

Publication Number Publication Date
JP2000042157A JP2000042157A (en) 2000-02-15
JP3971852B2 true JP3971852B2 (en) 2007-09-05

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4651051B2 (en) * 2007-02-02 2011-03-16 美津濃株式会社 Shuttlecock for badminton, artificial feather for shuttlecock, and method for producing them
EP2338576B1 (en) * 2008-09-09 2013-11-13 Mizuno Corporation Badminton shuttlecock
JP2010082160A (en) * 2008-09-30 2010-04-15 Mizuno Corp Shuttlecock for badminton and base for shuttlecock
CN101703833B (en) * 2009-08-21 2012-10-03 戴见霖 Badminton
JP6918792B2 (en) * 2016-06-10 2021-08-11 美津濃株式会社 Shuttlecock
EP3799577A1 (en) * 2018-03-29 2021-04-07 Shuttlestars B.V. Shuttlecock and method of manufacturing a shuttlecock

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