JPH07275413A - Bat for ball game - Google Patents
Bat for ball gameInfo
- Publication number
- JPH07275413A JPH07275413A JP6069260A JP6926094A JPH07275413A JP H07275413 A JPH07275413 A JP H07275413A JP 6069260 A JP6069260 A JP 6069260A JP 6926094 A JP6926094 A JP 6926094A JP H07275413 A JPH07275413 A JP H07275413A
- Authority
- JP
- Japan
- Prior art keywords
- bat
- ball game
- ball
- core material
- foam layer
- 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
- Pinball Game Machines (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、硬式若しくは軟式野球
又はソフトボール等に使用する球技用バットに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ball game bat for use in hard or soft baseball or softball.
【０００２】[0002]
【従来の技術】従来、金属バットよりも飛距離・耐久性
に優れ、打球時の衝撃が小さいカーボンバットが知られ
ている。2. Description of the Related Art Conventionally, a carbon bat is known which has a greater flight distance and durability than a metal bat and has a small impact when hitting a ball.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、カーボ
ンバットは、製造コストが高い・成型が複雑で製造工程
数が多い・打球時の音が高い・重量調整が難しい等の問
題点があった。However, the carbon bat has problems that the manufacturing cost is high, the molding is complicated and the number of manufacturing steps is large, the sound at the time of hitting the ball is high, and the weight adjustment is difficult.
【０００４】本発明は、上記の如き従来の問題点に鑑み
てなされたもので、従来のカーボンバット同様に飛距離
・耐久性等を維持すると共に、打球時の音を低くし、且
つ簡易に重量調整可能で、しかも安価に且つ容易に製造
することができる球技用バットを提供することを課題と
するものである。The present invention has been made in view of the conventional problems as described above, and maintains the flight distance, durability and the like as in the case of the conventional carbon bat, reduces the sound at the time of hitting the ball, and simply It is an object of the present invention to provide a ball game bat which can be adjusted in weight and can be manufactured easily at low cost.
【０００５】[0005]
【課題を解決するための手段】本発明は、このような課
題を解決するためになされたもので、その課題を解決す
るための手段は、剛性の芯材１と、その芯材１に周設さ
れる硬質の発泡ポリウレタン層２と、その発泡ポリウレ
タン層２を被覆する保護層５とから構成したことにあ
る。The present invention has been made to solve such a problem, and means for solving the problem is a rigid core material 1 and a core material 1 surrounding the core material 1. It is composed of a hard polyurethane foam layer 2 provided and a protective layer 5 covering the polyurethane foam layer 2.
【０００６】尚、前記芯材１として、カーボン繊維を、
又前記保護層５として、ガラス繊維３に合成樹脂を含浸
させたものを用いることも可能である。Carbon fiber is used as the core material 1.
Further, as the protective layer 5, it is also possible to use a glass fiber 3 impregnated with a synthetic resin.
【０００７】[0007]
【作用】本発明に係る球技用バットは、芯材１に発泡ウ
レタン層２を周設し、しかもその発泡ウレタン層２に保
護層５を被覆することにより、打球の飛距離が増し、更
に打球時には衝撃の少ないものとすることができる。さ
らに、比較的安価な材質を用いて製造可能で、且つ成型
工程が極めて少ないので、製造コストを抑えることがで
きる。In the ball game bat according to the present invention, the urethane foam layer 2 is provided around the core material 1, and the urethane foam layer 2 is covered with the protective layer 5, so that the flight distance of the ball is increased and the ball is further hit. Sometimes it can be of low impact. Furthermore, since it can be manufactured using a relatively inexpensive material, and the number of molding steps is extremely small, the manufacturing cost can be suppressed.
【０００８】また、前記発泡ウレタン層２は、打球時に
生ずる音を吸収するので、消音効果がある。さらに、発
泡ウレタンは容易に発泡倍率（密度）を変えることがで
きるので、それを変えるだけで球技用バットの重量調整
ができる。Further, since the urethane foam layer 2 absorbs a sound generated at the time of hitting a ball, it has a sound deadening effect. Furthermore, since urethane foam can easily change the expansion ratio (density), the weight of the ball bat can be adjusted simply by changing it.
【０００９】[0009]
【実施例】以下、本発明に係る球技用バットの一実施例
について、図面を参照しながら説明する。図１に於い
て、１はカーボン繊維に熱硬化性樹脂を含浸させて形成
された剛性の筒状の芯材を示す。２は芯材１の周囲に設
けられた硬質の発泡ポリウレタン層を示す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the ball bat according to the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a rigid tubular core material formed by impregnating carbon fibers with a thermosetting resin. Reference numeral 2 denotes a hard polyurethane foam layer provided around the core material 1.
【００１０】３は発泡ウレタン層２の周囲に設けられた
ガラス繊維を示し、そのガラス繊維３には溶液型ポリウ
レタン４が含浸されて保護層５が形成されて前記発泡ウ
レタン層２を被覆してなる。Reference numeral 3 denotes a glass fiber provided around the urethane foam layer 2. The glass fiber 3 is impregnated with a solution type polyurethane 4 to form a protective layer 5 to cover the urethane foam layer 2. Become.
【００１１】上記構成からなる球技用バット６は、硬質
の発泡ウレタン層２を設けたことにより打球の飛距離が
増し、更に打球時の衝撃を発泡ウレタン層２が吸収する
ので手に衝撃が伝わり難い。また、表面の保護層５とし
てガラス繊維３にポリウレタン４を含浸させることによ
り極めて強度を有することとなり、打球時に表面の損傷
も起こらず、即ち耐久性に優れたものとなる。In the ball-playing bat 6 having the above structure, the hard urethane foam layer 2 is provided to increase the flight distance of the hit ball, and the urethane foam layer 2 absorbs the impact at the time of hitting, so that the impact is transmitted to the hand. hard. Further, by impregnating the glass fiber 3 with the polyurethane 4 as the protective layer 5 on the surface, it has an extremely high strength, so that the surface is not damaged at the time of hitting the ball, that is, the durability is excellent.
【００１２】さらに、通常球技用バットは使用者により
その重量が異なるため予め数種類のものを製造する必要
があるが、本発明に係る球技用バット６は、発泡ウレタ
ン層２の発泡倍率（密度）を変えるだけで重量調整が可
能である。即ち、他の構成、例えば芯材１を変える必要
がないので、芯材１は一種類のみ用意しておけばよく、
容易に且つ安価に異なる重量の球技用バットを何種類も
製造することができるのである。Furthermore, since the weight of a normal ball game bat varies depending on the user, it is necessary to manufacture several types in advance. However, the ball game bat 6 according to the present invention has a foaming ratio (density) of the urethane foam layer 2. Weight can be adjusted simply by changing. That is, since it is not necessary to change the other configuration, for example, the core material 1, only one kind of the core material 1 needs to be prepared.
It is possible to easily and inexpensively manufacture many kinds of ball game bats having different weights.
【００１３】また、本発明に係る球技用バット６は、非
常に消音効果に優れたものである。なぜなら、保護層５
の次に打音を吸収し易い発泡ウレタン層２を設けている
ためである。さらに、芯材１の空洞部1aにスポンジ等を
収納することにより、より一層消音効果があることは言
うまでもない。Further, the ball game bat 6 according to the present invention has a very excellent sound deadening effect. Because the protective layer 5
This is because the urethane foam layer 2 that easily absorbs the tapping sound is provided next to. Furthermore, it goes without saying that by storing a sponge or the like in the hollow portion 1a of the core material 1, a further sound deadening effect can be obtained.
【００１４】尚、上記実施例に於いて、芯材１の材質
は、カーボン繊維に熱硬化性樹脂を含浸させて形成され
ているが、必ずしも熱硬化性樹脂を含浸させなければな
らないわけではない。さらに、芯材１の材質は必ずしも
カーボン繊維に限定されるわけではなく、アルミニウム
合金、チタン合金、その他金属合金、硬質プラスチッ
ク、木製等であってもよい。要は、打球時にグリップ6a
等が折れ曲がったりしない程度に球技用バットの芯材と
しての剛性を有し、且つその周囲に硬質の発泡ウレタン
が周設可能な材質であればよい。また、芯材１は必ずし
も空洞部1aを有する筒状に限定されず、空洞部1aを有し
ない棒状であってもよく、又一部が空洞部1aを有しない
筒状、例えばグリップ6a部分が空洞部1aを有しない棒状
に形成された筒状等であってもよい。In the above embodiment, the material of the core material 1 is formed by impregnating carbon fiber with a thermosetting resin, but it is not always necessary to impregnate the thermosetting resin. . Further, the material of the core material 1 is not necessarily limited to carbon fiber, and may be aluminum alloy, titanium alloy, other metal alloy, hard plastic, wood or the like. In short, grip 6a when hitting a ball
Any material may be used as long as it has rigidity as a core material of a ball game bat to the extent that it does not bend and a hard urethane foam can be provided around it. Further, the core material 1 is not necessarily limited to the cylindrical shape having the hollow portion 1a, and may be a rod shape having no hollow portion 1a, or a part of the cylindrical shape not having the hollow portion 1a, for example, the grip 6a portion. It may be a cylinder or the like formed in a rod shape without the hollow portion 1a.
【００１５】さらに、上記実施例に於いて、保護層５に
は、ガラス繊維３を用いてなるが、ガラス繊維３に限定
されず、例えばカーボン繊維、アラミッド繊維、ウィス
カー繊維等を使用してもよい。その他、保護層を強化で
きるものであれば、前記各繊維に限定されるものではな
い。また、これら各繊維に含浸するものとしては、上記
実施例の如く溶液型ポリウレタン４に限定されるもので
はなく、例えば、エポキシ樹脂等の熱硬化性樹脂、又は
熱可塑性樹脂、更には２液型ポリウレタン等を使用して
もよい。Further, although the glass fiber 3 is used for the protective layer 5 in the above-mentioned embodiment, it is not limited to the glass fiber 3 and carbon fiber, aramid fiber, whisker fiber or the like may be used. Good. In addition, the fibers are not limited to the above fibers as long as they can strengthen the protective layer. Further, what is impregnated into each of these fibers is not limited to the solution type polyurethane 4 as in the above-mentioned embodiment, and for example, a thermosetting resin such as an epoxy resin or a thermoplastic resin, or a two-component type. You may use polyurethane etc.
【００１６】さらに、上記実施例に於いて、保護層５は
強化繊維に合成樹脂が含浸されてなるが、必ずしもこれ
に限定されず、強化繊維に合成樹脂が含浸された上に更
に合成樹脂が被覆されたもの、或いは合成樹脂だけで形
成されたもの、又は合成樹脂の多層構造であってもよ
い。Further, in the above embodiment, the protective layer 5 is formed by impregnating the reinforcing fibers with the synthetic resin, but the invention is not necessarily limited to this, and the reinforcing fibers are impregnated with the synthetic resin and further the synthetic resin is further impregnated. It may be coated, formed only of synthetic resin, or have a multilayer structure of synthetic resin.
【００１７】[0017]
【発明の効果】本発明に係る球技用バットは、芯材に発
泡ウレタン層を設け、その発泡ウレタン層に保護層を被
覆することにより、打球の飛距離が増し、更に打球時に
手への衝撃を少ないものとすることができる。In the ball game bat according to the present invention, the urethane foam layer is provided on the core material, and the urethane foam layer is covered with the protective layer to increase the flight distance of the hit ball, and further to give an impact to the hand when hitting the ball. Can be small.
【００１８】さらに、本発明に係る球技用バットは、保
護層の次に発泡ウレタン層を設けることにより、打球時
に生ずる打音を効率よく吸収するため、非常に消音効果
に優れるものである。Furthermore, the ball-playing bat according to the present invention is very excellent in sound deadening effect because the hitting sound generated at the time of hitting a ball is efficiently absorbed by providing the urethane foam layer next to the protective layer.
【００１９】また、前記発泡ウレタン層の発泡倍率（密
度）を変えるだけで重量調整を行うことができるので、
重量の異なる数種類の球技用バットを容易に製造するこ
とができる。従って、数種類の球技用バットを製造する
場合でも芯材は一種類あればよいので成型工程が従来に
比べ少なく、しかも比較的安価な材質にて製造可能であ
るのでかなり製造コストを抑えることができる。Since the weight can be adjusted only by changing the expansion ratio (density) of the urethane foam layer,
Several types of ball game bats having different weights can be easily manufactured. Therefore, even if several types of ball game bats are manufactured, only one type of core material is required, so the number of molding steps is smaller than in the past, and since relatively inexpensive materials can be used for manufacturing, the manufacturing cost can be considerably suppressed. .
【図１】本発明の一実施例における球技用バットの一部
省略一部断面平面図。FIG. 1 is a partial cross-sectional plan view of a ball game bat according to an embodiment of the present invention, with some parts omitted.
１ 芯材 ２ 発泡ウレタン層 ３ ガラス繊維 ５ 保護層 1 core material 2 urethane foam layer 3 glass fiber 5 protective layer
Claims (3)
れる硬質の発泡ポリウレタン層(2) と、該発泡ポリウレ
タン層(2) を被覆する保護層(5) とからなることを特徴
とする球技用バット。1. A rigid core material (1), a rigid polyurethane foam layer (2) provided around the core material (1), and a protective layer (5) covering the polyurethane foam layer (2). A bat for ball games characterized by consisting of
請求項１記載の球技用バット。2. The ball game bat according to claim 1, wherein the core material (1) is made of carbon fiber.
成樹脂が含浸されたものからなる請求項１又は２記載の
球技用バット。3. The ball game bat according to claim 1, wherein the protective layer (5) is made of glass fibers (3) impregnated with a synthetic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6069260A JP3003829B2 (en) | 1994-04-07 | 1994-04-07 | Ball game bat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6069260A JP3003829B2 (en) | 1994-04-07 | 1994-04-07 | Ball game bat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07275413A true JPH07275413A (en) | 1995-10-24 |
| JP3003829B2 JP3003829B2 (en) | 2000-01-31 |
Family
ID=13397567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6069260A Expired - Lifetime JP3003829B2 (en) | 1994-04-07 | 1994-04-07 | Ball game bat |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3003829B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6872156B2 (en) | 2001-05-02 | 2005-03-29 | Mizuno Corporation | Baseball or softball bat, bat base member and elastic sleeve |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4966861U (en) * | 1972-09-25 | 1974-06-11 |
-
1994
- 1994-04-07 JP JP6069260A patent/JP3003829B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4966861U (en) * | 1972-09-25 | 1974-06-11 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6872156B2 (en) | 2001-05-02 | 2005-03-29 | Mizuno Corporation | Baseball or softball bat, bat base member and elastic sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3003829B2 (en) | 2000-01-31 |
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