JPH062172B2 - Exercise equipment for hitting balls - Google Patents

Exercise equipment for hitting balls

Info

Publication number
JPH062172B2
JPH062172B2 JP62204261A JP20426187A JPH062172B2 JP H062172 B2 JPH062172 B2 JP H062172B2 JP 62204261 A JP62204261 A JP 62204261A JP 20426187 A JP20426187 A JP 20426187A JP H062172 B2 JPH062172 B2 JP H062172B2
Authority
JP
Japan
Prior art keywords
gel
hitting
base layer
buffer layer
ball
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 - Lifetime
Application number
JP62204261A
Other languages
Japanese (ja)
Other versions
JPS6449579A (en
Inventor
幹育 中西
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.)
Suzuki Sogyo Co Ltd
Original Assignee
Suzuki Sogyo Co Ltd
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 Suzuki Sogyo Co Ltd filed Critical Suzuki Sogyo Co Ltd
Priority to JP62204261A priority Critical patent/JPH062172B2/en
Priority to KR1019880010178A priority patent/KR890003420A/en
Priority to ES198888307716T priority patent/ES2029027T3/en
Priority to DE8888307716T priority patent/DE3868459D1/en
Priority to EP88307716A priority patent/EP0304324B1/en
Publication of JPS6449579A publication Critical patent/JPS6449579A/en
Publication of JPH062172B2 publication Critical patent/JPH062172B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B49/00—Stringed rackets, e.g. for tennis
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B49/00—Stringed rackets, e.g. for tennis
    • A63B49/02—Frames
    • A63B49/08—Frames with special construction of the handle
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/06—Handles
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/06—Handles
    • A63B60/08—Handles characterised by the material
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/06—Handles
    • A63B60/10—Handles with means for indicating correct holding positions
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/54—Details or accessories of golf clubs, bats, rackets or the like with means for damping vibrations

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Golf Clubs (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Prostheses (AREA)

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明はテニスラケットやゴルフクラブ及び野球用バッ
ト等の打球用運動具に関するものである。DETAILED DESCRIPTION OF THE INVENTION <Field of Industrial Application> The present invention relates to a ball hitting exercise equipment such as a tennis racket, a golf club, and a baseball bat.

〈従来の技術〉 従来の此種運動具は、テニスボール等の球体を打球する
ために打球面を形成した打球部と、この打球部を回旋さ
せるための握持部とを有しており、握持部と打球部とは
棒状の硬質骨格部で１体的に連続されている。<Prior Art> A conventional exercise equipment of this type has a hitting portion formed with a hitting surface for hitting a ball such as a tennis ball, and a gripping portion for rotating the hitting portion, The gripping portion and the hitting portion are integrally connected by a rod-shaped hard skeleton portion.

上記打球部は、テニスラケットの場合においては、打球
面としてネットを張ったフレームで構成され、このフレ
ームには握持部としてのグリップを有するシャフトが硬
質骨格部として１体的に連設されている。In the case of a tennis racket, the hitting portion is composed of a frame stretched with a net as a hitting surface, and a shaft having a grip as a gripping portion is integrally connected to the frame as a hard skeleton portion. There is.

これに対し、上記打球部はゴルフクラブの場合にはクラ
ブヘッドであり、硬質骨格部としてのシャフトが１体的
に連結されると共にシャフトの上部に握持部としてのグ
リップが設けられている。On the other hand, the hitting portion is a club head in the case of a golf club, and a shaft as a hard skeleton is integrally connected and a grip as a gripping portion is provided above the shaft.

そして又上記打球部は、野球用バットの場合には、上部
の胴面に打球面が形成されるため、バット上半部全部と
なり、硬質骨格部はバット下半部に該当して、この部分
に握持部が設けられている。Also, in the case of a baseball bat, the hitting portion is the entire upper half of the bat because the hitting surface is formed on the upper body surface, and the hard skeleton corresponds to the lower half of the bat. Is provided with a grip.

〈発明が解決しようとする問題点〉 この様な打球用運動具においては、打球部と握持部が硬
質骨格部で連続せしめられているため、打球面に生じる
打球時の衝撃力が直接的に手掌に伝達して、手や腕に衝
撃を与える。<Problems to be Solved by the Invention> In such a ball striking exercise device, since the ball striking portion and the gripping portion are made continuous by the hard skeleton portion, the impact force at the time of hitting the ball on the ball striking surface is direct. It is transmitted to the palms of the hands and shocks the hands and arms.

この衝撃力は、打球部が球体の芯部を的確に捉えて打球
しない場合においては、衝撃波が共振して手掌に強く作
用するから、これによって初心者が手首、肘、肩等にス
ポーツ障害を起す事が多い他、一般に打球による衝撃力
は硬質骨格部を伝播して手掌に達するため殆ど減衰する
事がなく、このために熟練者であっても長時間の練習に
よってスポーツ障害を起す事が多々あると云う問題があ
った。This impact force causes shock waves to resonate strongly on the palm of the hand when the ball hits the core of the ball and does not hit the ball. In addition to many things, in general, the impact force due to hitting ball propagates through the hard skeleton and reaches the palm, so it is hardly attenuated, so even a skilled person often causes sports injury by long-time practice. There was a problem to say.

〈問題点を解決するための手段〉 本発明は、上記打球用運動具の硬質骨格部２０に設ける
握持部３０を、上記硬質骨格部２０の周面に発泡性合成
樹脂、望ましくは低発泡性合成樹脂を重層して形成した
基層３１と、この基層３１の外表面を覆う、例えば皮革
製の外被層３３と、上記硬質骨格部２０に直接的に接触
するか又上記基層３１の１部を介して上記硬質骨格部２
０に間接的に接触するか或は又上記外被層３３と上記基
層３１間に介在するかして、上記基層３１と合体せしめ
られ且つ上記硬質骨格部の長手方向に沿う様に配置され
たゲル状物質の緩衝層３２とを有する様に構成した事を
特徴とするものである。<Means for Solving the Problems> In the present invention, the grip portion 30 provided on the hard skeleton portion 20 of the above-mentioned ball striking device is provided with a foamable synthetic resin, preferably low foaming, on the peripheral surface of the hard skeleton portion 20. Base layer 31 formed by laminating a synthetic resin, an outer cover layer 33 made of, for example, leather covering the outer surface of the base layer 31, and directly contacting the hard skeleton portion 20 or 1 of the base layer 31. Through the above-mentioned hard skeleton 2
0, either indirectly contacting it or by interposing it between the jacket layer 33 and the base layer 31 so as to be integrated with the base layer 31 and arranged along the longitudinal direction of the hard skeleton. It is characterized in that it has a buffer layer 32 of a gel material.

〈作用〉 本発明打球用運動具はこの様なものであるから、打球時
に打球部において生じる緩衝力は硬質骨格部２０を伝播
して握持部３０から人体の手掌に伝達される。<Operation> Since the hitting ball exerciser of the present invention has such a structure, the cushioning force generated in the hitting portion at the time of hitting is propagated through the hard skeleton portion 20 and transmitted from the grip portion 30 to the palm of the human body.

握持部３０は、前述のように発泡性合成樹脂を材料とし
た基層３１と、この基層と合体せしめられたゲル状物質
の緩衝層３２とを有しているから、硬質骨格部２０から
手掌へ向う衝撃波は緩衝層３２と基層３１とを通過す
る。Since the grip portion 30 has the base layer 31 made of a foamable synthetic resin as described above and the buffer layer 32 of a gel-like substance combined with the base layer, the grip portion 30 is touched from the hard skeleton portion 20 to the palm. The shock wave heading for passes through the buffer layer 32 and the base layer 31.

この緩衝層３２における衝撃波の衝撃作用は、ゲル状物
質の有する非弾性又は微小弾性の変歪特性と、液体類似
の拡散特性によって行なわれる。The shock action of the shock wave in the buffer layer 32 is performed by the inelastic or microelastic deformation characteristic of the gel-like substance and the liquid-like diffusion characteristic.

即ち、ゲル状物質は緩衝波を印加されると、この衝撃力
で変歪せしめられつつ変歪による分子間摩擦抵抗によっ
て衝撃エネルギを吸収減衰するものであるが、この時に
おけるゲル状物質の変歪に伴う反発弾性は殆ど無視出来
る程度に極めて小さいか、又は当該衝撃動作に悪影響を
及ぼさない程度に小さいものであるから、反発弾性によ
る新しい衝撃波の発生を防止出来ると共に、ゲル状物質
は衝撃波を液体と類似する伝播特性によって早急に分散
伝達する特性があるから、これによって衝撃波は周辺の
基層３１内に細分して伝播される。That is, when a buffer wave is applied to a gel-like substance, it is deformed by this impact force and absorbs and attenuates impact energy by intermolecular frictional resistance due to the deformation. The impact resilience due to strain is extremely small enough to be ignored, or is so small that it does not adversely affect the impact operation.Therefore, it is possible to prevent the generation of new shock waves due to the impact resilience, and the gel-like material can Since the shock wave has a characteristic of being promptly dispersed and transmitted by a propagation characteristic similar to that of the liquid, the shock wave is subdivided and propagated in the surrounding base layer 31.

従って本発明打球用運動具においては、硬質骨格部２０
から放散される衝撃波は握持部３０内において有効に吸
収減衰せしめられる事になる。Therefore, in the athletic device for hitting balls of the present invention, the hard skeleton portion 20
The shock waves radiated from the shock absorber are effectively absorbed and attenuated in the grip portion 30.

〈実施例〉 第１図は本発明打球用運動具の一実施例であるテニスラ
ケットの一部切欠正面図で、打球部は環状フレーム１０
で構成されると共にこのフレーム１０には腸線やナイロ
ン等の糸１１１がネット状に張られて打球面１１を形成
している。<Embodiment> FIG. 1 is a partially cutaway front view of a tennis racket which is an embodiment of an exercise tool for hitting balls according to the present invention. The hitting portion is an annular frame 10.
In addition to this, a thread 111 such as intestine or nylon is stretched in a net shape on the frame 10 to form a ball striking surface 11.

上記フレーム１０の基部はフレーム１０と１体的に形成
された棒状の硬質骨格部に作られており、実施例では二
股状で続く長柄部分２０で示されている。The base portion of the frame 10 is formed as a rod-shaped rigid skeleton portion integrally formed with the frame 10, and in the embodiment, it is shown by a long stem portion 20 which is bifurcated.

上記長柄部分２０の基端、即ち図において下方部分は握
持部３０に構成されており、この握持部３０は第２図に
示す如く、長柄部分２０の周面に重層形成された発泡性
合成樹脂の基層３１と、この基層３１内に、上記長柄部
分２０と隔離せしめられて内蔵されたゲル状物質の緩衝
層３２と、更に上記基層３１の外表面を被覆する外被層
３３とで構成されている。The base end of the long handle portion 20, that is, the lower portion in the figure is configured as a grip portion 30, and the grip portion 30 has a foaming property formed in multiple layers on the peripheral surface of the long handle portion 20 as shown in FIG. A base layer 31 of synthetic resin, a buffer layer 32 of a gel-like substance which is embedded in the base layer 31 so as to be isolated from the long handle portion 20, and an outer coat layer 33 which covers the outer surface of the base layer 31. It is configured.

上記フレーム１０と長柄部分２０とは断面鼓型の中空シ
ャフト材を用いて１体的に成形されており、フレーム１
０の打球面１１の下縁を構成するため、長柄部分２０と
フレーム１０との境目近辺に横枠片１２が架設されてお
り、この横枠片１２に糸端が止着されている。The frame 10 and the long handle portion 20 are integrally formed by using a hollow shaft material having a drum-shaped cross section.
In order to form the lower edge of the ball striking face 11 of 0, a horizontal frame piece 12 is provided near the boundary between the long handle portion 20 and the frame 10, and the yarn end is fixed to the horizontal frame piece 12.

上記握持部３０は上記長柄部分２０の基部の１０数cmに
設けられており、外被層３３としての人工又は天然の皮
帯類が巻着されている。The grip portion 30 is provided 10 cm or more at the base of the long handle portion 20, and an artificial or natural leather band as the outer cover layer 33 is wrapped around the grip portion 30.

本発明運動具は、この握持部３０に、発泡性合成樹脂、
望ましくは低発泡性合成樹脂の基層３１に包覆される形
でゲル状物質の緩衝層３２が内設されているが、この緩
衝層３２のゲル状物質としては、シリコーンゲルが素材
としての安定性から良く適しており、その中でも、ＪＩ
Ｓ Ｋ２５３０−１９７６−（５０ｇ荷重）により測定
された針入度が５０〜２００程度のシリコーンゲルや、
この様なシリコーンゲルを基材としてこの中に微小中空
球体を混入してなる複合シリコーンゲルが最も良好であ
る。In the exercise equipment of the present invention, the grip portion 30 has a foamable synthetic resin,
Desirably, a buffer layer 32 of a gel-like substance is provided so as to be covered with a base layer 31 of a low-foaming synthetic resin. As the gel-like substance of the buffer layer 32, silicone gel is a stable material. It is well suited from the viewpoint of sex, and among them, JI
Silicone gel having a penetration of about 50 to 200 measured by SK2530-1976- (load of 50 g),
The composite silicone gel obtained by mixing such a silicone gel as a base material with micro hollow spheres therein is most preferable.

この様なシリコーンゲル材料は緩衝、防振能力にも特に
優れているので、これらシリコーンゲル材料を使用すれ
ば所期の目的を容易に達成する事が出来る。Since such silicone gel materials are also particularly excellent in buffering and anti-vibration ability, the intended purpose can be easily achieved by using these silicone gel materials.

而して、このような材料としては、例えばトーレシリコ
ーン株式会社製造の商品名トーレシリコーンＣＦ５０２
７や信越化学工業株式会社製造の商品名ＫＥ−１０５１
があり、又このシリコーンゲル材料中に混入する微小中
空球体としては、日本フィライト株式会社製造のフィラ
イト（登録商標）や同社販売のエクスパンセル（登録商
標）等があり、この微小中空球体混入のシリコーンゲル
は特願昭６０−２９７６７７号明細書において開示され
ている。As such a material, for example, trade name Toray Silicone CF502 manufactured by Toray Silicone Co., Ltd.
7 and product name KE-1051 manufactured by Shin-Etsu Chemical Co., Ltd.
In addition, as the hollow microspheres mixed in the silicone gel material, there are Philite (registered trademark) manufactured by Nippon Philite Co., Ltd. and Expancel (registered trademark) sold by the same company. The silicone gel is disclosed in Japanese Patent Application No. 60-297677.

上記緩衝層３２は、第２図に示す如く、長柄部分２０を
構成する平行な２本のシャフト２１，２２の４面に夫々
長柄部分２０の長手方向に沿って配置されており、実施
例では、各緩衝層３２は偏平な細長い板片に成形され
て、基層３１内に没入せしめられている。As shown in FIG. 2, the buffer layer 32 is arranged on the four surfaces of the two parallel shafts 21 and 22 that form the elongated handle portion 20 along the longitudinal direction of the elongated handle portion 20, respectively. Each buffer layer 32 is formed into a flat and slender plate piece, and is immersed in the base layer 31.

上記基層３１は、断面八角形となる様な形状に成形され
ると共に、緩衝層３２を長柄部分２０から若干隔離する
様に内包しており、従って長柄部分２０からの衝撃波は
基層３１の内側部分を通って緩衝層３２に達する様に設
計されている。The base layer 31 is formed into a shape having an octagonal cross section, and includes the buffer layer 32 so as to be slightly separated from the long handle portion 20. Therefore, the shock wave from the long handle portion 20 has an inner portion of the base layer 31. It is designed to pass through and reach the buffer layer 32.

上記実施例では、上記緩衝層３２が基層３１によって長
柄部分２０から隔離されており、これによって基層３１
と長柄部分２０との密着性が良くなる様に設計している
が、本発明運動具においては、第３図に示す如く、上記
長柄部分２０で示される硬質骨格部に上記緩衝層３２を
直接密着しても良く、或は第４図に示す如く、基層３１
と被覆層３３との間に緩衝層３２を介装しても良い。In the above embodiment, the buffer layer 32 is separated from the long stalk portion 20 by the base layer 31, which allows the base layer 31 to be separated.
It is designed so that the adhesion between the long handle portion 20 and the long handle portion 20 is improved. However, in the exercise equipment of the present invention, as shown in FIG. 3, the buffer layer 32 is directly attached to the hard skeleton portion shown by the long handle portion 20. It may be in close contact, or as shown in FIG.
The buffer layer 32 may be interposed between the and the coating layer 33.

而して第４図に示す実施例では上記被覆層３３が緩衝層
３２によって外方へ押圧される様に構成する事が望まし
い。Therefore, in the embodiment shown in FIG. 4, it is desirable that the covering layer 33 is pressed outward by the buffer layer 32.

而してこの様にするには上記基層３１に凹部を形成して
これに緩衝層３２を嵌着するのが良好である。For this purpose, it is preferable to form a recess in the base layer 31 and fit the buffer layer 32 into the recess.

上記硬質骨格部２０及びフレーム１０はそれ自体が緩衝
波を吸収する様に構成する事が望ましい。このために、
上記第３図、第４図に示す実施例における長柄部分２０
は内部に高発泡性合成樹脂を用いた芯部２３を有してお
り、長柄部分２０は繊維強化プラスチック等を材料にし
て作られている。この様な長柄部分２０即ち硬質骨格部
分は、ポリウレタン等の発泡性合成樹脂の芯部２３を繊
維強化プラスチックを材料としたプリプレグで巻回する
と共に、これを型嵌めし、次いで加熱加圧硬化処理する
事で得る事が出来る。It is desirable that the hard skeleton portion 20 and the frame 10 themselves be configured to absorb the buffer wave. For this,
Long handle portion 20 in the embodiment shown in FIGS. 3 and 4 above.
Has a core portion 23 made of a highly foamable synthetic resin inside, and the long handle portion 20 is made of fiber reinforced plastic or the like. Such a long stalk portion 20, that is, a hard skeleton portion, is obtained by winding a core portion 23 of expandable synthetic resin such as polyurethane with a prepreg made of fiber reinforced plastic, fitting this into a mold, and then heating and pressurizing and curing. You can get it by doing.

この様な製造工程において、緩衝層３２にゲル硬化した
ゲル状物質をの儘の形で使用すると、ゲル状物質がシリ
コーンゲルの場合に内部から油成分が滲出して長柄部分
２０との関係での固定効果が失はれる場合があるから、
実用上からすれば、第４図に示す如く、ゲル状物質を例
えば厚さ0.1mmのウレタンフィルムや厚さ0.3mmの塩化ビ
ニールフィルム等の被覆材３２１に封入して使用する事
が望ましい。In such a manufacturing process, when the gel-hardened gel-like substance is used in the buffer layer 32 in the form of a solid, when the gel-like substance is a silicone gel, the oil component is exuded from the inside, and in relation to the long handle portion 20. Since the fixed effect of may be lost,
From a practical point of view, as shown in FIG. 4, it is desirable to enclose the gel substance in a covering material 321 such as a urethane film having a thickness of 0.1 mm or a vinyl chloride film having a thickness of 0.3 mm before use.

いづれにしても、握持部３０は長柄部分２０の端末部分
とゲル状物質とを金型内に予めインサートして、これに
発泡性合成樹脂を注入する反応射出成形手段によって形
成するのが良好である。In any case, the grip portion 30 is preferably formed by a reaction injection molding means in which the end portion of the long handle portion 20 and the gel-like substance are pre-inserted in a mold and a foamable synthetic resin is injected into the mold. Is.

即ち、例えば発泡合成樹脂としてポリウレタンを用いる
場合について説明すれば、この場合には、ジイソシアネ
ートとポリオールの主成分に、硬化触媒や、発泡剤、整
泡剤等の添加成分を添加して液状成形材料を作ると共
に、この液状成形材料を、予め長柄部分２０の握持部形
成予定部分と緩衝層３２を形成するゲル状物質の板状片
とをセットした金型内に注入して、これを金型内で硬化
せしめれば良く、かくすれば基層３１の発泡による内部
圧で緩衝層３２を確固に握持部３０内に保持する事が出
来る。That is, for example, the case of using polyurethane as the foaming synthetic resin will be described. In this case, a curing catalyst, a foaming agent, a foam stabilizer, and other additive components are added to the main components of the diisocyanate and the polyol to form a liquid molding material. At the same time, the liquid molding material is injected into a mold in which a gripping portion forming portion of the long handle portion 20 and a plate-like piece of a gel-like substance forming the buffer layer 32 are set in advance, and this is poured into a metal mold. The buffer layer 32 can be firmly held in the grip portion 30 by the internal pressure generated by the foaming of the base layer 31.

而してこの成形手段においては、骨格部である長柄部分
２０の１部を圧潰凹窪させる等して基層３１の脱落を防
止する事が望ましい。Thus, in this forming means, it is desirable to prevent the base layer 31 from falling off by crushing a part of the long handle portion 20 which is a skeleton portion.

又、第１図に示す本実施例では、ゲル状物質は、フィル
ム等で被覆することなく、前出のシリコーンゲルＣＦ５
０２７中にエクスパンセル３重量％を添加してゲル硬化
させた無垢のままの状態で使用されており、４枚の緩衝
層３２は厚さ１mmで、１５mm×１１０mmのいわばチュー
イングガム板状のものを使用して作られている。Further, in the present embodiment shown in FIG. 1, the gel-like substance is not covered with a film or the like, and the above-mentioned silicone gel CF5
3% by weight of Expancel is added to 027 and it is used in a gel-hardened state. The four buffer layers 32 have a thickness of 1 mm and are a so-called chewing gum plate of 15 mm x 110 mm. Is made using.

実施例では上記緩衝層３２は４片用意されているが、こ
の緩衝層３２は必ずしも４片である必要はなく、例えば
２片でも、６片でも、或いは又８片でも良いが、この様
に緩衝層３２を分割させた状態で内設する事によって、
捻り力による緩衝層３２のズレ変形を一定範囲に留め、
それでいて握り心地を適度なものとすることができる。Although four pieces of the buffer layer 32 are prepared in the embodiment, the buffer layer 32 does not necessarily have to be four pieces, and may be, for example, two pieces, six pieces, or eight pieces. By providing the buffer layer 32 in a divided state,
Keep the displacement deformation of the buffer layer 32 due to the twisting force within a certain range,
Still, it is possible to make the grip comfortable.

この事は、長柄部分２０で示される硬質骨格部と握持部
の基層３１との結合を堅固にし、握持部３０の抜け落ち
防止しする上でも有利となる。This is also advantageous in strengthening the bond between the hard skeleton portion shown by the long handle portion 20 and the base layer 31 of the grip portion and preventing the grip portion 30 from falling off.

そして又上記ゲル状物質に混入する微小中空粒体の種類
と量とは任意に選定すれば良く、例えば前記フィライト
を用いる場合にはこれを３５重量％程度混入する。Further, the kind and amount of the micro hollow particles mixed in the gel substance may be arbitrarily selected. For example, when the above-mentioned phyllite is used, it is mixed in about 35% by weight.

本発明打球用運動具は、これによって球体を打てば、打
球部における打球の際の衝撃は、衝撃振動として手掌に
伝わってくる。With the ball-hitting exerciser of the present invention, when a ball is hit by this, the impact at the time of hitting the ball at the hitting portion is transmitted to the palm as impact vibration.

この衝撃振動は手掌に伝わる直前に必ず握持部３０を通
ってくるので、手掌はゲル状物質の緩衝層３２に伝達さ
れた振動を衝撃波として受ける事になる。Since this shock vibration always passes through the grip portion 30 immediately before being transmitted to the palm, the palm receives the vibration transmitted to the buffer layer 32 of the gel-like substance as a shock wave.

ここで、上記緩衝層３２を形成するゲル状物質の変形は
非弾性変形であって反発弾性を生じず、且つ急速に広域
に伝播するため、振動はゲル状物質全域で減衰吸収され
る事となり、手掌に伝わってくるのは、従来に比べ極め
て低く、短時間で収束する事になる。Here, the deformation of the gel-like material forming the buffer layer 32 is an inelastic deformation, does not cause repulsive elasticity, and propagates rapidly over a wide area, so that the vibration is attenuated and absorbed throughout the gel-like material. , It is much lower than that of the conventional one, and it will converge in a short time.

而して前記実施例のテニスラケットと従来のテニスラケ
ットとを比較したところ、手掌に伝わる衝撃力、振動収
束時間とも大幅な改善が見られ、得に、収束時間にあっ
ては、３０％〜５０％程度の短縮が認められた。As a result of comparison between the tennis racket of the above-mentioned embodiment and the conventional tennis racket, the impact force transmitted to the palm and the vibration convergence time were significantly improved. In particular, the convergence time was 30% to 30%. A reduction of about 50% was recognized.

なお、本願明細書で云う非弾性変形とはゴムやバネのよ
うな強い弾性変形をしないと云う意味であって、弾性的
変形を全くしないという意味ではない。It should be noted that the inelastic deformation referred to in the present specification means that strong elastic deformation such as rubber and spring is not performed, and does not mean that elastic deformation is not performed at all.

また、同様に反発弾性がないとは、ゴムやバネの様な強
い反発弾性を示さないと云う意味であって、反発弾性が
絶対的に零であるという意味ではない。Similarly, the absence of impact resilience means that strong impact resilience such as rubber and spring is not exhibited, and does not mean that the impact resilience is absolutely zero.

又、副次的効果ではあるが、緩衝層３２のゲル状物質と
して前記シリコーンゲルを用いる場合には、シリコーン
ゲルの比重が0.6〜1であって、従来テニスラケットに使
用されている発泡性フレーム構成材に較べ比較的重い方
なので、重心を握持部３０側に寄せる事が出来る。In addition, as a side effect, when the silicone gel is used as the gel material of the buffer layer 32, the specific gravity of the silicone gel is 0.6 to 1, and the foamable frame conventionally used for a tennis racket. Since it is relatively heavier than the components, the center of gravity can be brought closer to the grip portion 30 side.

以上の説明はテニスラケットを実施例として述べたが、
本発明打球用運動具はこれに限らず、ゴルフクラブや野
球用金属バット及びバトミントン用ラケット等の種々の
運動具にも実施出来るものである。In the above explanation, the tennis racket was described as an example,
The exercise equipment for hitting a ball according to the present invention is not limited to this, and can be applied to various exercise equipment such as golf clubs, baseball metal bats, and badminton rackets.

そして又、緩衝層３２を構成するゲル状物質としては、
上記実施例において説明した、ゲル硬化させたままの無
垢の状態のものの外、特開昭６１−５１０３５号公報や
特開昭６２−１３８３９号公報に開示されるごとく、ゲ
ル硬化させた後、更に表面の架橋度を上げて表面のみ非
粘着性のスキン層を形成したものや、特開昭６１−２１
４３６号公報に開示される如く、ウレタンフィルム等の
外装体内に封入され、或は、ホース状のフィルム内に充
填されたもの、及び実開昭６１−８９５３４号公報に開
示される如く、各々ボール状にて硬化させたものを用い
る事が出来、さらには、特開昭６２−１３２８４９号に
開示されている製造方法によって作られる再生ゲルやそ
の成形品等を任意に選定使用する事が出来る。Further, as the gel-like substance forming the buffer layer 32,
In addition to the solid gel-hardened state described in the above Examples, as disclosed in JP-A-61-51035 and JP-A-62-13839, after gel hardening, A skin layer having a non-adhesive surface layer formed by increasing the degree of crosslinking on the surface, and JP-A-61-21
As disclosed in Japanese Patent Publication No. 436, No. 436, it is enclosed in an outer casing such as a urethane film, or is filled in a hose-shaped film, and as disclosed in Japanese Utility Model Publication No. 61-89534, each ball It is possible to use a cured product in the form of a sheet, and it is possible to arbitrarily select and use a regenerated gel produced by the production method disclosed in JP-A-62-132849, a molded product thereof, or the like.

更に又上記打球部に連なり、上記握持部３０の芯として
用いられる長柄部分２０等の硬質骨格部は、上記実施例
のステンレスシャフト以外にも下記の如きものを使用す
る事が出来る。Further, as the hard skeleton portion such as the long handle portion 20 connected to the hitting portion and used as the core of the grip portion 30, the following ones can be used in addition to the stainless steel shaft of the above embodiment.

即ち、単一木材、積層木材、これらの両面にガラス繊維
等の強化層を重ねたサンドイッチ構造、アルミニュウ
ム、その他合金等から切り出され、削り出され、打ち抜
かれ、引き抜かれ、あるいはその他適宜の成形加工によ
り得られるものや、木材、積層木材、ポリスチレン、ポ
リウレタン樹脂等の発泡性合成樹脂の中芯を持ち、ガラ
ス繊維等の繊維強化プラスチックあるいはアルミニュウ
ム等の金属により巻回、被覆され、曲成や、加熱加圧硬
化処理を受けて得られるもの、更に又熱可塑性、熱硬化
性樹脂を射出成形、トランスファー成形、圧縮成形して
得られるもの等、従来使用されている殆どの構造のもの
を使用する事が出来る。That is, single wood, laminated wood, sandwich structure in which a reinforcing layer such as glass fiber is laminated on both sides of these, aluminum, other alloys, etc., cut, carved, punched, drawn, or other appropriate forming process Obtained by, or wood, laminated wood, polystyrene, having a core of expandable synthetic resin such as polyurethane resin, wound and covered with fiber reinforced plastic such as glass fiber or metal such as aluminum, bent, Most structures that have been used conventionally, such as those obtained by heat and pressure curing treatment, and those obtained by injection molding, transfer molding, compression molding of thermoplastic or thermosetting resin, are used. I can do things.

尚又、上記基層３１を構成する発泡性合成樹脂として
は、本実施例中で述べたポリウレタンが最適と思われる
が、これに限られるものではなく、エポキシ樹脂、不飽
和ポリエステル樹脂、ポリアミド、ポリスチレン、ＡＢ
Ｓ、ポリプロレン等、注型成形に使用できる殆どの合成
樹脂を用いる事が出来、これらは握持部３０の素材とし
ての強度、耐久性等の適性から選択すれば良い。Further, as the foamable synthetic resin constituting the base layer 31, the polyurethane described in this example is considered to be the most suitable, but it is not limited to this, and epoxy resin, unsaturated polyester resin, polyamide, polystyrene , AB
Most synthetic resins that can be used for cast molding, such as S and polypropylene, can be used, and these can be selected from suitability such as strength and durability as a material of the grip portion 30.

〈発明の効果〉 以上述べたとうり、本発明打球用運動具は、握持部内に
ゲル状物質の緩衝層３２を、発泡性合成樹脂の基層３１
と合体する形で内設してあるので、打撃の際の衝撃は緩
衝層３２と基層３１とに分散、吸収され、手掌に悪影響
を与える打球振動を大幅に解消することが出来ると云う
効果がある。<Effects of the Invention> As described above, in the ball hitting exercise equipment of the present invention, the buffer layer 32 of the gel-like substance and the base layer 31 of the foamable synthetic resin are provided in the grip portion.
Since it is installed in the form of being united with, the impact at the time of hitting is dispersed and absorbed by the buffer layer 32 and the base layer 31, and it is possible to largely eliminate the hitting ball vibration that adversely affects the palm. is there.

【図面の簡単な説明】[Brief description of drawings]

第１図は本発明打球用運動具の一実施例としてのテニス
ラケットを示す１部切欠正面図、第２図は第１図II−II
線に沿った横断面図、第３図、第４図は夫々本発明運動
具に使用する握持部の他の実施例を示す横断面図であ
る。 図中１０は打球部、１１は打球面、２０は硬質骨格部と
しての長柄部分、３０は握持部、３１は基層、３２は緩
衝層、３３は外被層を示す。FIG. 1 is a partially cutaway front view showing a tennis racket as an embodiment of an athletic device for hitting balls according to the present invention, and FIG. 2 is FIG. 1 II-II.
3 and 4 are cross-sectional views showing another embodiment of the grip portion used in the exercise equipment of the present invention. In the drawing, 10 is a hitting portion, 11 is a hitting surface, 20 is a long stem portion as a hard skeleton portion, 30 is a gripping portion, 31 is a base layer, 32 is a buffer layer, and 33 is an outer coating layer.

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】球体を打球するための打球面を備えた打球
部と、この打球部と連続する棒状の硬質骨格部と、この
硬質骨格部に設けた握持部とを有し、上記握持部は上記
硬質骨格部の外周に発泡性合成樹脂を重層被覆して形成
した基層と、この基層の外表面を覆う外被層と、上記硬
質骨格部と上記外被層との間において上記基層と合体す
る様に設けられたゲル状物質の緩衝層とを有する様に構
成した打球用運動具。1. A ball striking portion having a ball striking surface for striking a sphere, a rod-shaped hard skeleton portion continuous with the ball striking portion, and a grip portion provided on the hard skeleton portion. The holding part is a base layer formed by coating a foamable synthetic resin on the outer periphery of the hard skeleton in multiple layers, an outer coat layer covering the outer surface of the base layer, and the above between the hard skeleton part and the outer coat layer. An athletic device for hitting a ball, comprising a buffer layer of a gel-like material provided so as to be united with a base layer.
JP62204261A 1987-08-19 1987-08-19 Exercise equipment for hitting balls Expired - Lifetime JPH062172B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP62204261A JPH062172B2 (en) 1987-08-19 1987-08-19 Exercise equipment for hitting balls
KR1019880010178A KR890003420A (en) 1987-08-19 1988-08-10 Baseball equipment for hitting
ES198888307716T ES2029027T3 (en) 1987-08-19 1988-08-19 SPORTS TOOLS TO HIT BALLS OR THE LIKE.
DE8888307716T DE3868459D1 (en) 1987-08-19 1988-08-19 SPORTS DEVICE FOR HITTING BALLS OR SIMILAR.
EP88307716A EP0304324B1 (en) 1987-08-19 1988-08-19 Sports implement for hitting balls or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62204261A JPH062172B2 (en) 1987-08-19 1987-08-19 Exercise equipment for hitting balls

Publications (2)

Publication Number Publication Date
JPS6449579A JPS6449579A (en) 1989-02-27
JPH062172B2 true JPH062172B2 (en) 1994-01-12

Family

ID=16487534

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62204261A Expired - Lifetime JPH062172B2 (en) 1987-08-19 1987-08-19 Exercise equipment for hitting balls

Country Status (5)

Country Link
EP (1) EP0304324B1 (en)
JP (1) JPH062172B2 (en)
KR (1) KR890003420A (en)
DE (1) DE3868459D1 (en)
ES (1) ES2029027T3 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5060944A (en) * 1990-10-26 1991-10-29 Spalding & Evenflo Companies, Inc. Tennis racket with split frame
TW286290B (en) * 1992-07-16 1996-09-21 Minnesota Mining & Mfg
IT236825Y1 (en) * 1995-04-18 2000-08-17 Nuova Duegi Srl TAPE FOR THE COVERING OF HANDLES OF SPORTING TOOLS AND SIMILAR
US6558270B2 (en) 1997-10-16 2003-05-06 Benjamin J. Kwitek Grip
US6953405B2 (en) 2002-02-19 2005-10-11 Stx, Llc Vibration damping field hockey stick
US7462118B2 (en) 2004-01-09 2008-12-09 Stx, Llc Back and edge weighted field hockey sticks
US8528577B2 (en) 2010-07-13 2013-09-10 Easton Technical Products, Inc. Shock absorbing system for trekking poles
USD809441S1 (en) 2015-06-01 2018-02-06 Auto-Grip Llc Steering wheel cover
US10308271B2 (en) * 2015-06-01 2019-06-04 Auto-Grip Llc Steering wheel cover
CN115518355B (en) * 2022-09-29 2024-05-24 江苏祺洋航碳纤科技有限公司 Racket handle and racket

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2106800A1 (en) * 1970-02-16 1971-09-02 Schnell, Erhard, Dr , Wächter, HeI mut, Dr , Innsbruck (Osterreich) Rackets, in particular tennis rackets
US4105205A (en) * 1975-08-13 1978-08-08 Sudbury Engineering Corporation Racket
DE3332643A1 (en) * 1983-09-09 1985-03-28 Puma-Sportschuhfabriken Rudolf Dassler Kg, 8522 Herzogenaurach Racket, in particular tennis racket
US4660832A (en) * 1985-03-25 1987-04-28 Shomo Robert D Shock and vibration absorbent handle
JPH01502559A (en) * 1986-03-21 1989-09-07 ホワイトフォード，カールトン　エル racket grip

Also Published As

Publication number Publication date
KR890003420A (en) 1989-04-14
EP0304324A1 (en) 1989-02-22
DE3868459D1 (en) 1992-03-26
JPS6449579A (en) 1989-02-27
ES2029027T3 (en) 1992-07-16
EP0304324B1 (en) 1992-02-19

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