JPH0780097A - Athletic ball - Google Patents
Athletic ballInfo
- Publication number
- JPH0780097A JPH0780097A JP25515793A JP25515793A JPH0780097A JP H0780097 A JPH0780097 A JP H0780097A JP 25515793 A JP25515793 A JP 25515793A JP 25515793 A JP25515793 A JP 25515793A JP H0780097 A JPH0780097 A JP H0780097A
- Authority
- JP
- Japan
- Prior art keywords
- length
- regular
- ball
- regular pentagonal
- visibility
- 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.)
- Granted
Links
Landscapes
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ハンドボール、サッカ
ーボール等多角形のパネルの辺同士を縫合わせ又は貼り
合わせて、略球面（正確には多面体）に形成した運動用
ボールであって、その視認性を改善したものに関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sports ball such as a handball, a soccer ball, etc., in which the sides of a polygonal panel are sewn or bonded together to form a substantially spherical surface (correctly, a polyhedron). The present invention relates to an improved visibility.
【０００２】[0002]
【従来の技術】従来、ハンドボール、サッカーボール等
多角形面の辺同士を継合わせて、略球面（正確には多面
体）に形成した運動用ボールの多面体は、通常、プラト
ンの多面体の一つとして数学的に定義され、正六角形面
６が２０枚と正五角形面５が１２枚の３２面で構成され
ている。図１は正六角形面６ｊと正五角形面５ｊとより
なるプラトンの多面体を示したものであるが、サッカー
ボールの場合、多角形を球面に沿わせるため図２のよう
に正六角形面６ｋ、正五角形面５ｋの各辺が３次元的な
曲線となるようにしている。サッカー競技は広い野外競
技場で行われ、空・観客の服装によっては、ボールの存
在・回転・運動の状態を見え易くするため、ボールの表
面は一般に白色系の人工皮革或いは天然皮革で構成され
ているが、上記要求に対して、前述の正六角形面６ｋに
デザイン（模様）を施した所謂デザインボールと、正六
角形面６ｋを白色とし、正五角形面５ｋを黒色にしたも
のとがある。2. Description of the Related Art Conventionally, a polyhedron of an exercise ball formed by joining sides of polygonal surfaces such as a handball and a soccer ball into a substantially spherical surface (to be exact, a polyhedron) is usually used as one of the polyhedrons of Plato. It is defined mathematically, and is composed of 20 regular hexagonal faces 6 and 12 regular pentagonal faces 5, 32 faces. FIG. 1 shows a polytonic polyhedron composed of a regular hexagonal surface 6j and a regular pentagonal surface 5j. However, in the case of a soccer ball, a regular hexagonal surface 6k, a regular hexagonal surface 6k Each side of the pentagonal surface 5k is a three-dimensional curve. Soccer games are held in large outdoor stadiums, and the surface of the ball is generally made of white artificial leather or natural leather to make it easier to see the presence, rotation, and movement of the ball, depending on the clothing of the sky and the audience. However, in response to the above requirements, there are so-called design balls in which the regular hexagonal surface 6k is designed (patterned), and those in which the regular hexagonal surface 6k is white and the regular pentagonal surface 5k is black.
【０００３】しかしながら、上記２種類のボールのう
ち、後者の正五角形面５ｋを黒色にしたものは次のよう
な欠点がある。すなわち、正六角形面６ｋを白色、正五
角形面５ｋを黒色とした場合、白と黒でメリハリがつく
反面、黒の面積が小さく見え、視認性が十分であると言
えず、特に白い服装の多い夏季では、空中を飛行するボ
ールはプレイヤー，観客共に見え難いと言う問題があ
る。これを解決するために正六角形面６ｋを黒色、正五
角形面５ｋを白色としたものは、黒色の占める割合が多
過ぎて、かえって視認性が低下すると言う問題点が生じ
る。この原因は次のように説明することができる。すな
わち、正六角形面６ｋが２０枚であるのに対して、正五
角形面５ｋが１２枚と少なく（正六角形面枚数：正五角
形面枚数＝５：３）、且つ正六角形面６ｋと同一の辺長
で構成される正五角形面５ｋの面積が小さい（正六角形
面面積：正五角形面面積=2.6：１）ことによる。さらに
詳細に説明すると、ボールの円周は、サッカーボール及
びハンドボールは国際規則によって、表１に示すように
規定されている。However, of the above two types of balls, the latter one in which the regular pentagonal surface 5k is black has the following drawbacks. That is, when the regular hexagonal surface 6k is white and the regular pentagonal surface 5k is black, the black and white areas are sharp, but the black area looks small and it cannot be said that the visibility is sufficient. In the summer, there is a problem that the ball flying in the air is difficult for both the player and the audience to see. In order to solve this problem, if the regular hexagonal surface 6k is black and the regular pentagonal surface 5k is white, there is a problem that the ratio of black occupies too much and the visibility deteriorates. The cause of this can be explained as follows. That is, the number of regular hexagonal surfaces 6k is 20, but the number of regular pentagonal surfaces 5k is as small as 12 (the number of regular hexagonal surfaces: the number of regular pentagonal surfaces = 5: 3), and the same side as the regular hexagonal surface 6k. This is because the area of the regular pentagonal surface 5k composed of the length is small (regular hexagonal surface area: regular pentagonal surface area = 2.6: 1). Explaining in more detail, the circumference of the ball is defined by the international rules for soccer balls and handballs as shown in Table 1.
【０００４】[0004]
【表１】 [Table 1]
【０００５】そのため、プラトンの多面体で構成された
従来の３２面体のボールは、メーカーによって若干の差
はあり、例えば、サッカーボールの５号サイズは、その
正五角形面５ｋ或いは正六角形面６ｋの一辺が、それぞ
れ概ね縫ボールで４２〜４４ｍｍ、貼りボールで４４〜
４６ｍｍの範囲内にあり、上記のように視認性の面で問
題があった。Therefore, the conventional 32-sided ball composed of the polyhedron of Plato has a slight difference depending on the manufacturer. For example, the size 5 of a soccer ball has one side of its regular pentagonal surface 5k or regular hexagonal surface 6k. However, the sewing balls are 42 to 44 mm, and the pasted balls are 44 to 44 mm.
It was in the range of 46 mm, and there was a problem in terms of visibility as described above.
【０００６】[0006]
【発明が解決しようとする課題】解決しようとする問題
点は、上記従来の正六角形面６ｋを白色に、正五角形面
５ｋを黒色にした運動用ボールは、黒色の部分の面積が
小さく見え、視認性が不十分で、その存在・回転・運動
の状態が遠くから見え難いことである。The problem to be solved by the present invention is that in the conventional exercise ball in which the regular hexagonal surface 6k is white and the regular pentagonal surface 5k is black, the black area looks small. The visibility is insufficient, and its presence, rotation, and motion status are difficult to see from a distance.
【０００７】[0007]
【課題を解決するための手段】図３乃至図５を参考に説
明する。本発明は、２０枚の変則六角形面６ｅ及び１２
枚の正五角形面５ｅとよりなる３２面体よりなり、前記
各変則六角形面６ｅが３組の相対する平行な短辺Ｅ2 及
び長辺Ｅ1 を持ち、その短辺Ｅ2 の長さに対する長辺Ｅ
1 の辺長比が １：１．１〜１：１．４ であり、且つ前
記正五角形面５ｅの各辺Ｆ1 の長さが前記変則六角形面
６ｅの長辺Ｅ1 の長さに等しいことを特徴とするもので
ある。The means for solving the problems will be described with reference to FIGS. The present invention includes 20 irregular hexagonal surfaces 6e and 12
The irregular hexagonal surface 6e has three pairs of parallel short sides E 2 and long sides E 1 which correspond to the length of the short side E 2 . Long side E
1 has a side length ratio of 1: 1.1 to 1: 1.4, and the length of each side F 1 of the regular pentagonal surface 5e is equal to the length of the long side E 1 of the irregular hexagonal surface 6e. It is characterized by equality.
【０００８】[0008]
【実施例】実施例について説明すると、多角形面の辺同
士を縫い合わせたり、貼り合わせたりして継合わせ、略
球面（正確には多面体）に形成した運動用ボールの多面
体を次のように構成してある。すなわち、６ｅは２０枚
の白色変則六角形面であって、相対する平行な３組のそ
れぞれ短辺Ｅ2 と長辺Ｅ1 との長さの比を、短辺Ｅ2 の
長さ：長辺Ｅ1 の長さ＝１：１．１〜１．４ にするこ
とによって、面積を従来の正六角形面６ｋに比べて小さ
くしてある。５ｅは１２枚の黒色正五角形面であって、
その辺Ｅ1 の長さを変則正六角形面６ｅの長辺Ｅ1 に等
しくすることによって、面積を従来の正五角形面５ｋに
比べて大きくしてある（図３及び図４参照、二点鎖線は
従来の辺、太線は本発明の辺を示す）。しかも、変則六
角形面６ｅ、正五角形面５ｅの枚数はそれぞれ従来の正
六角形面６ｋ，正五角形面５ｋの枚数と同一であって、
しかも、従来の正五角形面５ｋの全面積に対する本発明
の正五角形面５ｅの全面積に対する増加量は、従来の正
六角形面６ｋの全面積に対する本発明の変則六角形面６
ｅの全面積に対する減少に等しくしてあるため、ボール
全体としては、面積は変化せず、図５に示すように、ボ
ールの真球性はそのまま保持される。[Examples] Explaining examples, the sides of polygonal surfaces are sewn together or pasted together to form a polyhedron of an exercise ball formed into a substantially spherical surface (correctly, polyhedron) as follows. I am doing it. That, 6e is a white irregular hexagonal surface of 20 sheets, each of the opposing parallel three sets the ratio of the length of the short side E 2 and the long E 1, the short side E 2 Length: Length By setting the length of the side E 1 to 1: 1.1 to 1.4, the area is made smaller than that of the conventional regular hexagonal surface 6k. 5e is 12 black regular pentagonal surfaces,
By equalizing the length of the side E 1 in the long side E 1 of irregular regular hexagonal surface 6e, it is made larger than the conventional regular pentagon surface 5k area (see FIGS. 3 and 4, two-dot chain line Indicates the conventional side, and the thick line indicates the side of the present invention). Moreover, the numbers of the irregular hexagonal surface 6e and the regular pentagonal surface 5e are the same as the numbers of the conventional regular hexagonal surface 6k and the regular pentagonal surface 5k, respectively,
Moreover, the amount of increase with respect to the total area of the regular pentagonal surface 5e of the present invention with respect to the total area of the conventional regular pentagonal surface 5k is the irregular hexagonal surface 6 of the present invention with respect to the total area of the conventional regular hexagonal surface 6k.
Since e is made equal to the decrease with respect to the total area, the area of the ball as a whole does not change, and as shown in FIG.
【０００９】作用について説明すると、従来の５号サッ
カーボールと同じ大きさのボールについて、変則六角形
面６ｅの各組の短辺Ｅ2 ・長辺Ｅ1 の比を変化させたも
のを使って試技し、遠方から観察した時の視認性を調査
した。その結果を表２に示す。To explain the operation, a ball having the same size as the conventional No. 5 soccer ball is obtained by changing the ratio of the short side E 2 and the long side E 1 of each set of the irregular hexagonal surface 6e. We tried the technique and investigated the visibility when observed from a distance. The results are shown in Table 2.
【００１０】[0010]
【表２】 [Table 2]
【００１１】なお、短辺・長辺の長さを比で表現したの
は、メーカー間に辺長差が若干あることを考慮したこと
と、ボールの種類が変わっても（サッカーボール４号、
ハンドボール３号、２号等）、直径が大きく違わない場
合、視認性が比で決まることが確認されていることによ
る。表２から明かなように、視認性においては変則六角
形面６ｅの短辺Ｅ2 対長辺Ｅ1 の比が１：１．１以上で
あれば、従来と比べて明確に視認性が向上しているが、
正五角形面５ｅを拡大した場合、黒色が増加し、逆に視
認性が悪化し、試作Ｄ以上の比率では視認性は試作Ｂよ
り劣り、黒色部分が増し、意匠面の評価が悪化する。以
上の結果から、視認性改良は、短辺Ｅ2対長辺Ｅ1 の比
１：１．１から１：１．４迄の範囲が適当である。The lengths of the short side and the long side are expressed as a ratio, considering that there is a slight difference in the side length between manufacturers and even if the type of the ball changes (Soccer Ball No. 4,
It is confirmed that the visibility is determined by the ratio when the diameters of handball No. 3 and No. 2 are not significantly different. As is clear from Table 2, in the visibility, if the ratio of the short side E 2 to the long side E 1 of the irregular hexagonal surface 6e is 1: 1.1 or more, the visibility is clearly improved as compared with the conventional one. But
When the regular pentagonal surface 5e is enlarged, the blackness increases and conversely the visibility deteriorates. At a ratio of the prototype D or more, the visibility is inferior to the prototype B, the black portion increases, and the evaluation of the design surface deteriorates. From the above results, it is appropriate to improve the visibility in the range of the ratio of the short side E 2 to the long side E 1 of 1: 1.1 to 1: 1.4.
【００１２】[0012]
【発明の効果】本発明は以上のように構成されるため、
遠距離の視認性が向上し、空・観客の服装に拘らず、ボ
ールの存在・回転・運動の状態が見易くなり、プレイヤ
ーの対応動作も早くなり、キーパーのシュートに対する
反応速度が高まり、競技が白熱化し、著しく面白くなっ
た。Since the present invention is constructed as described above,
Improves visibility at long distances, makes it easier to see the presence, rotation, and movement of the ball, regardless of the sky and spectator's clothing, and speeds up the player's response action, increasing the reaction speed to the keeper's shots It became incandescent and became very interesting.
【図１】プラトン多面体を示す正面図である。FIG. 1 is a front view showing a Plato polyhedron.
【図２】従来例のボールを示す正面図である。FIG. 2 is a front view showing a conventional ball.
【図３】本発明の実施例の変則六角形面を示す平面図で
ある。FIG. 3 is a plan view showing an irregular hexagonal surface of an embodiment of the present invention.
【図４】本発明の実施例の正五角形面を示す平面図であ
る。FIG. 4 is a plan view showing a regular pentagonal surface of an embodiment of the present invention.
【図５】本発明の実施例を示す正面図である。FIG. 5 is a front view showing an embodiment of the present invention.
５ｅ，５ｊ，５ｋ 正五角形面 ６ｅ 変則六角形面 ６ｊ，６ｋ 正六角形面 Ｅ 正五角形、正六角形の辺の長さ Ｅ1 正五角形の辺の長さ、変則正六
角形の長辺の長さ Ｅ2 変則正六角形の短辺の長さ5e, 5j, 5k Regular pentagonal surface 6e Irregular hexagonal surface 6j, 6k Regular hexagonal surface E Regular pentagonal, regular hexagonal side length E 1 Regular pentagonal side length, irregular regular hexagonal long side length E 2 Short side length of irregular regular hexagon
Claims (1)
枚の正五角形面（５ｅ）からなる３２面体よりなり、前
記各変則六角形面（６ｅ）が３組の相対する平行な短辺
（Ｅ2 ）及び長辺（Ｅ1 ）を持ち、その短辺（Ｅ2 ）の
長さに対する長辺（Ｅ1 ）の辺長比が １：１．１〜
１：１．４ であり、且つ前記正五角形面（５ｅ）の各
辺（Ｅ1 ）の長さが前記変則六角形面（６ｅ）の長辺
（Ｅ1 ）の長さに等しいことを特徴とする運動用ボー
ル。1. 20 irregular hexagonal surfaces (6e) and 12
The irregular hexagonal surface (6e) has three pairs of parallel short sides (E 2 ) and long sides (E 1 ) which are parallel to each other. The side length ratio of the long side (E 1 ) to the length of the side (E 2 ) is 1: 1.1 to.
1: 1.4, and the length of each side (E 1 ) of the regular pentagonal surface (5e) is equal to the length of the long side (E 1 ) of the irregular hexagonal surface (6e). And an exercise ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25515793A JP2747645B2 (en) | 1993-09-17 | 1993-09-17 | Exercise ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25515793A JP2747645B2 (en) | 1993-09-17 | 1993-09-17 | Exercise ball |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0780097A true JPH0780097A (en) | 1995-03-28 |
| JP2747645B2 JP2747645B2 (en) | 1998-05-06 |
Family
ID=17274862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25515793A Expired - Fee Related JP2747645B2 (en) | 1993-09-17 | 1993-09-17 | Exercise ball |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2747645B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1006300C2 (en) * | 1997-06-12 | 1998-12-15 | Pieter Huybers | Outer ball with inflatable inner ball for sports purposes |
| US6988969B2 (en) | 2002-04-24 | 2006-01-24 | Nike, Inc. | Game ball with bridged panels |
-
1993
- 1993-09-17 JP JP25515793A patent/JP2747645B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1006300C2 (en) * | 1997-06-12 | 1998-12-15 | Pieter Huybers | Outer ball with inflatable inner ball for sports purposes |
| US6988969B2 (en) | 2002-04-24 | 2006-01-24 | Nike, Inc. | Game ball with bridged panels |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2747645B2 (en) | 1998-05-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19980113 |
|
| LAPS | Cancellation because of no payment of annual fees |