JPH0140532Y2 - - Google Patents
Info
- Publication number
- JPH0140532Y2 JPH0140532Y2 JP1987148891U JP14889187U JPH0140532Y2 JP H0140532 Y2 JPH0140532 Y2 JP H0140532Y2 JP 1987148891 U JP1987148891 U JP 1987148891U JP 14889187 U JP14889187 U JP 14889187U JP H0140532 Y2 JPH0140532 Y2 JP H0140532Y2
- Authority
- JP
- Japan
- Prior art keywords
- ball
- fiber
- hitting
- bat
- cylinders
- 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
Links
- 239000000835 fiber Substances 0.000 claims description 39
- 239000002184 metal Substances 0.000 claims description 11
- 239000012783 reinforcing fiber Substances 0.000 claims description 6
- 229920003002 synthetic resin Polymers 0.000 claims description 4
- 239000000057 synthetic resin Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 239000011343 solid material Substances 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004760 aramid Substances 0.000 description 2
- 229920006231 aramid fiber Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000007799 cork Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 241000288673 Chiroptera Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Landscapes
- Golf Clubs (AREA)
- Moulding By Coating Moulds (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
この考案は、中空バツトの打球部に複数の繊維
円筒を外接充填し、該部を強化した金属バツトに
関する。[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a metal bat in which a plurality of fiber cylinders are circumferentially filled in the ball-hitting part of a hollow bat to strengthen the part.
（従来の技術）
従来、金属バツトを補強するとともに、打球の
飛距離を向上させるための技術として、中空とし
たバツト本体の打球部内側に、充実材を圧縮状態
で挿入したものが知られている（実開昭59−
125582号、実開昭60−109653号）。また、中空部
に強化繊維を内壁に層着したもの（実開昭62−
39758号）、又は中空部にクサビ状、或いは台形状
の中空体を充填したもの（実開昭61−54870号）
が知られていた。(Prior art) Conventionally, as a technique for reinforcing metal bats and improving the flight distance of the ball, it has been known that a solid material is inserted in a compressed state inside the ball hitting part of the hollow bat body. There is (Jitsukai 59-
No. 125582, Utility Model No. 60-109653). In addition, reinforcing fibers are layered on the inner wall of the hollow part (1986-
39758), or one in which the hollow part is filled with a wedge-shaped or trapezoidal hollow body (Utility Model Application No. 61-54870)
was known.
（考案が解決しようとする問題点）
しかしながら、従来の補強方法では、充実材を
バツト本体内に挿入しているので、バツト本体を
軽量な材質のもので製造しても、充実材により打
球部の重量が増加してしまい、バツト全体のバラ
ンスが悪化する。このため、充実材の長さは、小
さく抑えなければならず、打球部の全幅（通常
120mm）に亙つて充実材を挿入することは事実上
不可能とされており、十分に強度を向上させるこ
とができないという問題点があつた。(Problem that the invention aims to solve) However, in the conventional reinforcement method, a solid material is inserted into the bat body, so even if the bat body is made of a lightweight material, the solid material will prevent the ball from hitting the ball. The weight of the bat will increase, and the overall balance of the bat will deteriorate. For this reason, the length of the filler must be kept small, and the full width of the ball hitting area (usually
It is virtually impossible to insert filler material over a length of 120 mm), which poses the problem of not being able to sufficiently improve the strength.
また、本願出願人は、先に中空バツト本体の打
球部内側に、コルク筒体を密嵌した金属バツトを
提案しており（実開昭62−119971号）、重量の増
大を抑えて強度を向上できるという効果を得てい
る。しかし、同質のコルク材を多数用意すること
は容易ではなく、また、より一層の強度の向上も
望まれている。 Additionally, the applicant has previously proposed a metal bat in which a cork cylinder is tightly fitted inside the ball-hitting part of the hollow bat body (Utility Model Application No. 119971/1983), which suppresses the increase in weight and increases strength. I am getting the effect that I can improve. However, it is not easy to prepare a large number of cork materials of the same quality, and further improvement in strength is desired.
前記における実開昭62−39758号の考案は、強
化繊維の層着で強度増強が不十分である。また、
実開昭61−54890号は充填物たる繊維筒が互いに
面接触で打球時の変形自由度が小さいなどの問題
点があつた。 The above-mentioned invention of Utility Model Application Publication No. 62-39758 has insufficient strength enhancement due to the layering of reinforcing fibers. Also,
Utility Model Application Publication No. 61-54890 had problems such as the fiber tubes that were the filling material were in surface contact with each other, and the degree of freedom of deformation when hitting the ball was small.
（問題点を解決するための手段）
すなわちこの考案は、中空のバツト本体の打球
部内側に、複数の繊維円筒が軸方向と平行に、か
つ夫々外接させて並列に嵌挿されたことを特徴と
するものである。(Means for solving the problem) In other words, this invention is characterized in that a plurality of fiber cylinders are inserted in parallel to the inside of the ball hitting part of the hollow bat body, parallel to the axial direction and circumscribed with each other. That is.
なお、繊維円筒は、強化繊維に合成樹脂を含浸
させたものや合成樹脂に強化繊維を混入したもの
が用いられる。この繊維円筒は、長繊維の強化繊
維で構成するのが望ましく、繊維種としては、炭
素繊維、アラミド繊維、ボロン繊維、ポリエチレ
ン繊維などの１種もしくは２種以上の複合材を挙
げることができる。ただし、この考案としては、
これらに限定されるものではなく、要は強度、伸
縮力などに優れた繊維であればよい。また、マト
リクスやバインダーとなる合成樹脂にはエポキシ
系樹脂などの熱硬化性樹脂を用いるのが望まし
い。 Note that the fiber cylinder used is one made by impregnating reinforcing fibers with a synthetic resin or one made by mixing reinforcing fibers into a synthetic resin. This fiber cylinder is preferably constructed of long fiber reinforcing fibers, and examples of fiber types include one or more composite materials such as carbon fibers, aramid fibers, boron fibers, and polyethylene fibers. However, this idea
The fibers are not limited to these, and any fibers may be used as long as they have excellent strength, elasticity, etc. Furthermore, it is desirable to use a thermosetting resin such as an epoxy resin as the synthetic resin serving as the matrix or binder.
前記の繊維円筒の配置方法は、限定されるもの
ではなく、また数は複数であればよい。この複数
の繊維円筒は、同径のもので構成してもよく、ま
た径の異なる複数種の繊維円筒を嵌挿することも
可能である。 The method of arranging the fiber cylinders is not limited, and the number may be plural. The plurality of fiber cylinders may have the same diameter, or it is also possible to insert a plurality of types of fiber cylinders having different diameters.
（作用）
この考案によれば、打球部の重量を増すことな
く、繊維円筒の嵌挿により強度を向上させること
ができる。また打球部で打球した後にも繊維円筒
の伸縮力により打球部が容易に復元する。(Function) According to this invention, the strength of the ball-hitting portion can be improved by inserting the fiber cylinder into the ball-hitting portion without increasing its weight. Further, even after the ball is hit by the ball-hitting portion, the ball-hitting portion easily returns to its original state due to the expansion and contraction force of the fiber cylinder.
（実施例 １）
以下に、この考案の一実施例を第１図および第
２図に基づき説明する。(Example 1) An example of this invention will be described below with reference to FIGS. 1 and 2.
金属バツト１の打球部２の内側の軸心位置へ、
長繊維からなるカーボン繊維にエポキシ樹脂を含
浸させて硬化させた大径で円筒状の繊維円筒３を
配置し、この繊維円筒３と打球部２の内面との間
に、同素材で同じく円筒状の小径の繊維円筒４を
多数配置し、全体で繊維円筒３と繊維円筒４とを
嵌挿する。なお、この嵌挿の際には、打球部２を
直径で約１mm締付けることにより繊維円筒３およ
び繊維円筒４を固定する。 To the inner axis position of the ball hitting part 2 of the metal bat 1,
A large-diameter, cylindrical fiber cylinder 3 made of long carbon fibers impregnated with epoxy resin and cured is arranged, and between this fiber cylinder 3 and the inner surface of the ball-striking part 2, a cylindrical fiber cylinder made of the same material is placed. A large number of small-diameter fiber cylinders 4 are arranged, and the fiber cylinders 3 and 4 are fitted together as a whole. Note that during this insertion, the fiber cylinder 3 and the fiber cylinder 4 are fixed by tightening the ball hitting portion 2 by about 1 mm in diameter.
このように内部に繊維円筒を密嵌した構造の金
属バツトによれば、重量を増すことなく強靭性を
増すことができる。したがつて、バツト本体１の
金属疲労を軽減して、耐久性を向上させる。ま
た、打球部２は、伸縮性に優れた繊維円筒３およ
び繊維円筒４で弾性的に補強されるので、復元力
が増大し、打球時に大きな反発力を得ることがで
き、自重の小さいバツトで大きな飛躍力を得るこ
とができる。 According to the metal bat having the structure in which the fiber cylinder is tightly fitted inside, the toughness can be increased without increasing the weight. Therefore, metal fatigue of the bat body 1 is reduced and durability is improved. In addition, since the ball-hitting part 2 is elastically reinforced with the fiber cylinders 3 and 4, which have excellent elasticity, the restoring force is increased and a large repulsion force can be obtained when hitting the ball. You can get a big leap forward.
また、繊維円筒を嵌挿したので、重量の増加は
僅かであり、打球部内部の全長に亘る繊維円筒の
配置が可能となり、打球部のいずれの位置で打球
しても、むらの無い飛球力が得られる。しかも、
繊維円筒は、打球部とともに、打球部以外への配
置も可能であるので、金属バツトの強度を飛躍的
に向上させることが可能である。 In addition, since the fiber cylinder is inserted, the increase in weight is slight, and the fiber cylinder can be placed over the entire length inside the ball-hitting part, so no matter where the ball is hit in the ball-striking part, the ball will fly evenly. You can gain strength. Moreover,
Since the fiber cylinder can be placed not only in the ball-hitting part but also in areas other than the ball-hitting part, it is possible to dramatically improve the strength of the metal bat.
（実施例 ２）
次に、他の実施例を第３図に基づいて説明す
る。バツト本体１の打球部２の内側に、長繊維か
らなるアラミド繊維にエポキシ樹脂を含浸させて
硬化させた繊維円筒５が、均一で密に外接配置さ
れており、前記実施例１と同様に打球部２の締付
けにより、固定されている。この実施例において
も、前記実施例１と同様に、打球部の補強によ
り、強度の向上、復元力の向上、金属疲労の防止
などの効果が得られる。(Example 2) Next, another example will be described based on FIG. 3. Inside the ball-striking portion 2 of the bat body 1, fiber cylinders 5 made of aramid fibers made of long fibers impregnated with epoxy resin and cured are uniformly and densely circumscribed, and as in the case of the first embodiment, the fiber cylinders 5 are circumferentially arranged. It is fixed by tightening part 2. In this embodiment as well, as in the first embodiment, by reinforcing the ball hitting portion, effects such as improved strength, improved restoring force, and prevention of metal fatigue can be obtained.
なお、前記実施例１，２のように複数の繊維円
筒を嵌挿することにより、打球部への打撃が均等
に緩和されて、衝撃に対する耐性が向上する。 Incidentally, by inserting a plurality of fiber cylinders as in Examples 1 and 2, the impact on the ball hitting portion is evenly alleviated, and the resistance to impact is improved.
また前記のように、繊維円筒の配設は、打球部
の内側に嵌挿して外接的に固定できるものであれ
ばよく、前記実施例１，２に限定されるものでは
ない。また、前記実施例１，２では、繊維円筒
を、打球部の内周に亘り、均一に配置したが、不
均一に配置して、回転位置によつて異なる特徴を
与えることも可能である。 Further, as described above, the arrangement of the fiber cylinder is not limited to those of Examples 1 and 2, as long as it can be fitted inside the ball hitting part and fixed circumferentially. Further, in Examples 1 and 2, the fiber cylinders are uniformly arranged over the inner periphery of the ball-hitting portion, but it is also possible to arrange them non-uniformly to provide different characteristics depending on the rotational position.
（考案の効果）
この考案によれば、中空のバツト本体の打球部
内側に、複数の繊維円筒を軸方向と平行に並列し
て、各繊維円筒を外接して嵌挿したので、重量は
僅かに増加するのみで強度を飛躍的に向上させる
ことができ、金属疲労に対する耐性も向上すると
いう効果があり、また、復元力の増大により、軽
量なバツトで大きな飛躍力が得られる効果があ
る。(Effects of the invention) According to this invention, a plurality of fiber cylinders are arranged parallel to the axial direction inside the ball hitting part of the hollow bat body, and each fiber cylinder is fitted in a circumscribed manner, so the weight is small. This has the effect of dramatically improving strength and improving resistance to metal fatigue, and by increasing restoring force, a large leaping force can be obtained with a lightweight butt.
第１図は、この考案の一実施例を示す一部正面
図、第２図は同じく拡大横断面図、第３図は同じ
く他の実施例を示す拡大横断面図である。
１……バツト本体、２……打球部、３，４，５
……繊維円筒。
FIG. 1 is a partial front view showing one embodiment of this invention, FIG. 2 is an enlarged cross-sectional view, and FIG. 3 is an enlarged cross-sectional view showing another embodiment. 1... Butt body, 2... Ball hitting part, 3, 4, 5
...Fiber cylinder.
Claims (1)
維円筒が軸方向と平行で、かつ夫々外接させて
並列に嵌挿されたことを特徴とする金属バツ
ト。 ２ 繊維円筒は強化繊維に合成樹脂を含浸させた
筒体からなることを特徴とする実用新案登録請
求の範囲第１項記載の金属バツト。[Claims for Utility Model Registration] 1. A metal bat characterized in that a plurality of fiber cylinders are fitted in parallel to the inside of the ball hitting part of a hollow bat body, parallel to the axial direction and circumscribed with each other. 2. The metal bat according to claim 1, wherein the fiber cylinder is made of reinforcing fibers impregnated with synthetic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987148891U JPH0140532Y2 (en) | 1987-09-29 | 1987-09-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987148891U JPH0140532Y2 (en) | 1987-09-29 | 1987-09-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6454578U JPS6454578U (en) | 1989-04-04 |
| JPH0140532Y2 true JPH0140532Y2 (en) | 1989-12-04 |
Family
ID=31420620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987148891U Expired JPH0140532Y2 (en) | 1987-09-29 | 1987-09-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0140532Y2 (en) |
-
1987
- 1987-09-29 JP JP1987148891U patent/JPH0140532Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6454578U (en) | 1989-04-04 |
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