JPS63212378A - Ball core - Google Patents
Ball coreInfo
- Publication number
- JPS63212378A JPS63212378A JP62046194A JP4619487A JPS63212378A JP S63212378 A JPS63212378 A JP S63212378A JP 62046194 A JP62046194 A JP 62046194A JP 4619487 A JP4619487 A JP 4619487A JP S63212378 A JPS63212378 A JP S63212378A
- Authority
- JP
- Japan
- Prior art keywords
- ball
- ball core
- core
- present
- synthetic rubber
- 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
- 239000007799 cork Substances 0.000 claims description 7
- 229920003051 synthetic elastomer Polymers 0.000 claims description 6
- 239000005061 synthetic rubber Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 3
- 239000000178 monomer Substances 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 229920002125 Sokalan® Polymers 0.000 claims description 2
- 239000004584 polyacrylic acid Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000011162 core material Substances 0.000 description 18
- 230000005484 gravity Effects 0.000 description 6
- 239000002245 particle Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Graft Or Block Polymers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、球技例えば野球・ソフトボール等に用いられ
るボールに関し、具体的には該ボールの芯材を形成する
材料成分に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a ball used for ball games such as baseball and softball, and specifically relates to material components forming the core material of the ball.
従来、ボールは内部に有るボール芯と外殻の皮部とから
なっており、これを形成するに、古くは合成ゴムとコル
ク粒とを圧搾造形してコルク芯を形成し、これにゴムテ
ープを巻き付け、その上に外皮を被せる構造が見られ、
最近では合成ゴムまたは合成樹脂と適度に粉砕されたコ
ルク粒とを混合して一体化造形しこれに外皮を被せたも
のなどが一般的構造であった。Conventionally, a ball consists of an internal ball core and an outer skin, and in the olden days, synthetic rubber and cork grains were compressed to form a cork core, and rubber tape was attached to this. You can see the structure of wrapping it around and covering it with an outer skin.
Recently, a common structure has been one in which synthetic rubber or synthetic resin is mixed with moderately crushed cork particles, molded into one piece, and then covered with an outer skin.
（発明が解決しようとする問題点〕
しかしながら前記構造では、ボール芯に適度の硬さと良
好な反発性及び強い耐久性を得さしめようとすればどう
しても高比重の造形物となってしまい、逆に低比重を求
めれば前記特性の内の数種を失なってしまう欠点を有し
ていた。(Problems to be Solved by the Invention) However, with the above structure, if you try to give the ball core appropriate hardness, good resilience, and strong durability, you will inevitably end up with a molded object with a high specific gravity. However, if a low specific gravity is sought, some of the above-mentioned properties are lost.
このためボール重量に対する規格を常に脅かし、しかも
満足できる性能を発揮しえないものであった０
この欠点を解消するために、実開昭５７−２００２４６
号の如き、コルク粒と適度に粉砕した焼きゴムとを接着
剤を介して一体化し、各粒間に間隙を持たせて低比重化
したボール芯構造なども開発されたが、高い成型コスト
に見合う性能を未だ得ていない。For this reason, the ball weight standards were always threatened, and moreover, it was not possible to demonstrate satisfactory performance.
A ball core structure has been developed, such as the one shown in No. 1, in which cork grains and moderately crushed baked rubber are integrated with an adhesive, and there are gaps between each grain to reduce the specific gravity, but the high molding cost I have not yet achieved the performance that it deserves.
本発明はこの様な欠点に鑑み、低比重であって充分な硬
度と良好な反発力及び強い耐久性の総ての特性を兼ね備
えたボール芯を提供するものである０
以下、図面を参照しつつ詳述する。In view of these drawbacks, the present invention provides a ball core that has all the characteristics of low specific gravity, sufficient hardness, good repulsive force, and strong durability. I will explain in detail.
本発明は球技、特に野球等に用いられるボールのボール
芯Ａであって、図面の様に前記ボール芯Ａを、合成ゴム
１と適度の粒度のコルク粒２と金属ポリアクリル酸モノ
マー６及びメラミン樹脂するいはフェノール樹脂等の熱
硬化性樹脂４とをそれぞれ適量混合し加熱加圧して所望
の形状のボール芯Ａに形成したことを特徴としている。The present invention is a ball core A for a ball used for ball games, especially baseball, etc. As shown in the drawing, the ball core A is made of synthetic rubber 1, cork particles 2 of appropriate particle size, metal polyacrylic acid monomer 6, and melamine. The ball core A is characterized in that appropriate amounts of resin or thermosetting resin 4 such as phenolic resin are mixed and heated and pressed to form a ball core A of a desired shape.
（作用〕
本発明は前記の様な構成によって適度の硬度をもって快
音を発する打球音を得ζ復元力と耐久力に富むボール芯
Ａを形成することに成功した。(Function) The present invention has succeeded in forming a ball core A having a suitable hardness, producing a pleasant hitting sound, and having excellent restoring force and durability using the above-described structure.
すなわち、このボール芯Ａを構成するそれぞれの成分特
性は、合成ゴム１に加うる金属ボ１ノアクリル酸モノマ
ー６が硬度の低・高調整と反発性を向上させる働きをな
し、コルク粒２ではコルク質を形成する極細気胞によっ
て粒度の大小に拘らず持てる特性をそのまま発揮し良好
な反発力を与えながら全体の密度を大きく下げる作用を
なす。また、熱硬化性樹脂４においてはその耐久性を左
右する程重要なものであって、これの配合量によって強
い耐久性を得さしめることかできる。In other words, the characteristics of each component constituting this ball core A are that the metal boron 1 and acrylic acid monomer 6 added to the synthetic rubber 1 function to adjust the hardness to low and high levels and improve the resilience, and the cork grains 2 The ultrafine cells that form the corky material exhibit the same characteristics regardless of the size of the particles, providing a good repulsive force while greatly reducing the overall density. Further, the thermosetting resin 4 is so important that it affects its durability, and strong durability can be obtained by changing the amount of this resin mixed.
本発明では優れた特性を持つこれらの成分を適当な配合
比をもって混合し、該混合物を金型内で加熱加圧して所
望形状のボール芯Ａを形成する。In the present invention, these components having excellent properties are mixed at an appropriate mixing ratio, and the mixture is heated and pressed in a mold to form a ball core A having a desired shape.
このボール芯Ａに合成ゴム・合成樹脂あるいは皮革等の
求められる外皮Ｂを被せるだけの工程を持ってボールを
完成させる。The ball is completed by simply covering the ball core A with a required outer skin B such as synthetic rubber, synthetic resin, or leather.
得られたボールは、内にあるボール芯Ａが前述したそれ
ぞれの材料特性をそのまま表わし、快よい打球音及び打
球感触を提供する適度の硬度と、長い飛行距離を出す強
い反発力とを低比重で実現させ、さらに長期において数
多くの打撃に耐える復元力をも備えるものとなった。The resulting ball has a ball core A inside that exhibits the characteristics of each of the materials mentioned above, and has a low specific gravity that has moderate hardness that provides a pleasant hitting sound and feel, and strong repulsive force that allows for a long flight distance. In addition, it has the resilience to withstand numerous blows over a long period of time.
この様に、本発明のボール芯Ａは各々の性能変更許容範
囲が規格に対して極めて大きいもので、配合調整によっ
て如何なる要求にも対処できる摘用度の高いものとなる
。As described above, the ball core A of the present invention has an extremely large permissible range of performance change compared to the standard, and is highly versatile in that it can meet any demands by adjusting the composition.
以上の説明の様に、本発明によると低比重物でありなが
ら充分な硬度及び良好な反発力を持たしめ合わせて強い
耐久性まで兼ね備えた成形性に優れる理想的なボール芯
となった。As explained above, according to the present invention, an ideal ball core with low specific gravity, sufficient hardness and good repulsion, strong durability, and excellent moldability has been obtained.
図面は本発明のボール芯を表わした断面図である。 The drawing is a sectional view showing the ball core of the present invention.
Claims (1)
ム１と、コルク粒２と、金属ポリアクリル酸モノマー３
、及び熱硬化性樹脂４とをそれぞれ適量を混合し加熱加
圧下で形成したことを特徴としたボール芯。In the ball core A of a ball used for ball games; synthetic rubber 1, cork grains 2, and metal polyacrylic acid monomer 3
, and a thermosetting resin 4 in appropriate amounts, and formed under heating and pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62046194A JPS63212378A (en) | 1987-02-27 | 1987-02-27 | Ball core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62046194A JPS63212378A (en) | 1987-02-27 | 1987-02-27 | Ball core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63212378A true JPS63212378A (en) | 1988-09-05 |
| JPH0560389B2 JPH0560389B2 (en) | 1993-09-02 |
Family
ID=12740255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62046194A Granted JPS63212378A (en) | 1987-02-27 | 1987-02-27 | Ball core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63212378A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7829604B2 (en) | 2007-04-04 | 2010-11-09 | Bridgestone Sports Co., Ltd. | Golf ball |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4503767B2 (en) * | 2000-03-02 | 2010-07-14 | Ｓｒｉスポーツ株式会社 | Solid golf balls |
| CN109438791A (en) * | 2018-09-26 | 2019-03-08 | 天长市正牧铝业科技有限公司 | A kind of baseball core abrasive rubber material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60194968A (en) * | 1984-03-16 | 1985-10-03 | 内山工業株式会社 | Ball core body and its production |
-
1987
- 1987-02-27 JP JP62046194A patent/JPS63212378A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60194968A (en) * | 1984-03-16 | 1985-10-03 | 内山工業株式会社 | Ball core body and its production |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7829604B2 (en) | 2007-04-04 | 2010-11-09 | Bridgestone Sports Co., Ltd. | Golf ball |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0560389B2 (en) | 1993-09-02 |
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