JPH0614785Y2 - Racket frame - Google Patents
Racket frameInfo
- Publication number
- JPH0614785Y2 JPH0614785Y2 JP1989108694U JP10869489U JPH0614785Y2 JP H0614785 Y2 JPH0614785 Y2 JP H0614785Y2 JP 1989108694 U JP1989108694 U JP 1989108694U JP 10869489 U JP10869489 U JP 10869489U JP H0614785 Y2 JPH0614785 Y2 JP H0614785Y2
- Authority
- JP
- Japan
- Prior art keywords
- grip
- racket frame
- core material
- grip core
- weight
- 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
Links
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
- Golf Clubs (AREA)
Description
【考案の詳細な説明】 産業上の利用分野 本発明はテニス、スカッシュ等に用いるラケットのラケ
ットフレームに関し、特にグリップ部材の抜けを防止す
る形状のグリップ芯材を備えたラケットフレームに関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a racket frame for a racket used for tennis, squash, etc., and more particularly to a racket frame provided with a grip core material having a shape for preventing the grip member from coming off.
従来の技術 従来、第７図に示すラケットフレーム１のグリップ芯材
２及びグリップ部材３は、第８図に示すように、グリッ
プ芯材２に低発泡樹脂等からなり長手方向に孔３ａを設
けたグリップ部材３を取り付けて、グリップ芯材２の外
周面と該孔３ａの内周面が接着する構成となっている。2. Description of the Related Art Conventionally, as shown in FIG. 8, the grip core material 2 and the grip member 3 of the racket frame 1 shown in FIG. 7 are made of low-foam resin or the like in the grip core material 2 and provided with holes 3a in the longitudinal direction. The grip member 3 is attached so that the outer peripheral surface of the grip core member 2 and the inner peripheral surface of the hole 3a are bonded.
上記のラケットフレーム１では、グリップ芯材２とグリ
ップ部材３は両者の接触面における接着力のみで接合し
ているため、その接合力は弱く、スイング時に矢印Ａの
方向に作用する遠心力によりグリップ部材３がグリップ
芯材２から抜けてしまう問題があった。In the racket frame 1 described above, since the grip core material 2 and the grip member 3 are joined only by the adhesive force on the contact surface between them, the joining force is weak, and the grip is caused by the centrifugal force acting in the direction of the arrow A during the swing. There is a problem that the member 3 comes off from the grip core material 2.
この問題を解決する手段として、第９図及び第１０図に
示すラケットフレームが提供されている。即ち、ラケッ
トフレームのグリップ芯材２の外周面に設けられている
ラケットフレーム全体の重心位置調整用の錘５を収納す
る溝４の端部に係合部分４ａを設け、グリップ部材３の
該溝４内に係合する部分３ａが係合部分４ａに規制され
て、スイング時の遠心力に対してグリップ部材３の抜け
を防止する作用をしている。As a means for solving this problem, the racket frame shown in FIGS. 9 and 10 is provided. That is, the engaging portion 4a is provided at the end of the groove 4 for accommodating the weight 5 for adjusting the center of gravity of the entire racket frame provided on the outer peripheral surface of the grip core material 2 of the racket frame, and the groove of the grip member 3 is provided. The portion 3a that engages with the inside 4 is restricted by the engaging portion 4a, and acts to prevent the grip member 3 from coming off with respect to the centrifugal force during the swing.
考案が解決しようとする課題 しかし、上記の構造では、溝４の末端部に係合部分４ａ
を設けたため、錘５をグリップ芯材２の末端部に配置す
ることができない。第７図に示すように、一般に、ラケ
ットフレーム１の重心Ｇはグリップ側の端から２９〜３
１cmであることが望ましいが、錘５をグリップ芯材２の
末端部に位置させることが出来ないとすると、重心Ｇを
上記の位置とするためには錘５の重量を増やさなければ
ならず、ラケットフレーム１全体の重量の増加を招く。
また、重心位置の調整の自由度が小さくなってしまい好
適な重心位置を得ることが出来ない。However, in the above structure, the engaging portion 4a is formed at the end of the groove 4.
Since the weight is provided, the weight 5 cannot be arranged at the end of the grip core material 2. As shown in FIG. 7, generally, the center of gravity G of the racket frame 1 is 29 to 3 from the end on the grip side.
Although it is desirable that the weight 5 be 1 cm, if the weight 5 cannot be located at the end of the grip core material 2, the weight of the weight 5 must be increased in order to bring the center of gravity G to the above position. This increases the weight of the entire racket frame 1.
Further, the degree of freedom in adjusting the position of the center of gravity becomes small, and it is not possible to obtain a suitable position of the center of gravity.
本考案は、上記のような従来のラケットフレームの問題
に鑑みなされたものであり、グリップの抜けを防止する
と共に、重心位置を調整するための錘をグリップ芯材末
端部まで配置することができるラケットフレームを提供
することを目的とするものである。The present invention has been made in view of the problems of the conventional racket frame as described above, and it is possible to prevent the grip from coming off and arrange a weight for adjusting the position of the center of gravity up to the end of the grip core material. It is intended to provide a racket frame.
課題を解決するための手段 本考案は上記した従来のラケットフレームおける問題を
解決するために、グリップ部材を外嵌するグリップ芯材
の外周面の長手方向に複数の突起部を設けたラケットフ
レームにおいて、 上記グリップ芯材の外周面に、ラケットフレーム全体の
重心調整用の錘を収容する溝を末端部分から長手方向に
設けていることを特徴とするラケットフレームを提供す
るものである。Means for Solving the Problems In order to solve the problems in the above-described conventional racket frame, the present invention provides a racket frame having a plurality of protrusions provided in the longitudinal direction of the outer peripheral surface of a grip core member on which a grip member is fitted. The racket frame is characterized in that a groove for accommodating a weight for adjusting the center of gravity of the entire racket frame is provided on the outer peripheral surface of the grip core member in the longitudinal direction from the end portion.
上記ラケットフレームは、予め繊維が配置された金型内
に２種類のナイロンモノマー（ε−カプロラクタム）を
混合したものを注入、反応させて製造した（ＲＩＭ製
法）繊維強化ナイロン樹脂製等のものが好ましい。The racket frame is manufactured by injecting and reacting a mixture of two types of nylon monomers (ε-caprolactam) in a mold in which fibers are arranged in advance (RIM manufacturing method), such as fiber reinforced nylon resin. preferable.
また、上記ラケットフレームのグリップ芯材の断面は多
角形状であり、外周面の対向する一対の面の夫々に断面
が三角形の突起部をグリップ芯材長手方向に設けてい
る。In addition, the grip core of the racket frame has a polygonal cross section, and projections having a triangular cross section are provided in the grip core longitudinal direction on each of a pair of opposing outer peripheral surfaces.
作用 グリップ芯材の外周面の長手方向に突起部を設けたた
め、グリップ芯材外周面とグリップ部材内周面の接触面
積が大きくなり、グリップ芯材とグリップ部材の接合が
強固になる。Action Since the protrusion is provided in the longitudinal direction of the outer peripheral surface of the grip core member, the contact area between the outer peripheral surface of the grip core member and the inner peripheral surface of the grip member is increased, and the grip core member and the grip member are joined firmly.
また、重心調整用の錘を収納するための溝をグリップ芯
材の末端まで設けているため、該錘をグリップ芯材の端
部まで配置することが可能であり、ラケットフレームの
重心調整が容易である。Further, since the groove for accommodating the weight for adjusting the center of gravity is provided up to the end of the grip core material, the weight can be arranged up to the end of the grip core material, and the center of gravity of the racket frame can be easily adjusted. Is.
実施例 次に、図面に示す実施例に基づき本考案に係るラケット
フレームを詳細に説明する。Embodiment Next, a racket frame according to the present invention will be described in detail based on an embodiment shown in the drawings.
第１図から第３図に示す本考案に係るラケットフレーム
の第１実施例では、該ラケットフレームは、予め繊維を
配置した金型内に、ナイロンモノマー（ε−カプロラク
タム）を２種類混合した混合液を注入、反応させる製造
方法（ＲＩＭ製造法）による繊維強化ナイロン樹脂製で
ある。In the first embodiment of the racket frame according to the present invention shown in FIGS. 1 to 3, the racket frame is a mixture in which two types of nylon monomers (ε-caprolactam) are mixed in a mold in which fibers are arranged in advance. It is made of fiber-reinforced nylon resin by a manufacturing method (RIM manufacturing method) in which a liquid is injected and reacted.
また、グリップ芯材１０の断面は略八角形状であり、外
周面の一面には、鉛等からなる２８０〜３８０ｇ程度の
重量のラケットフレームの重心調整用の錘１１を収納す
る略コ字型の溝１２がグリップ芯材１０末端から長手方
向に設けている。さらに、該グリップ芯材１０の外周面
の上記溝１２が設けられていない対向する一対の面には
グリップ芯材１２の長手方向に断面が三角形状の突起部
１３が夫々２つ設けられている。The cross section of the grip core material 10 is a substantially octagonal shape, and one surface of the outer peripheral surface is a substantially U-shape for accommodating a weight 11 for adjusting the center of gravity of a racket frame made of lead or the like and weighing about 280 to 380 g. A groove 12 is provided in the longitudinal direction from the end of the grip core material 10. Further, two protrusions 13 each having a triangular cross section are provided in the longitudinal direction of the grip core material 12 on a pair of opposing surfaces on the outer peripheral surface of the grip core material 10 where the groove 12 is not provided. .
グリップ部材１４はウレタン等の低発泡合成樹脂からな
り、上記グリップ芯材１０に取り付けられ、グリップ芯
材１０の外周面と該グリップ部材１４の孔１４ａの内周
面の接触部分が接着している。The grip member 14 is made of a low-foam synthetic resin such as urethane and is attached to the grip core material 10 so that the outer peripheral surface of the grip core material 10 and the contact portion of the inner peripheral surface of the hole 14a of the grip member 14 are bonded. .
尚、本実施例では、上記突起部１３の外形寸法Ｄはグリ
ップ芯材１０の外形寸法Ｅより小さい。In this embodiment, the outer dimension D of the protrusion 13 is smaller than the outer dimension E of the grip core material 10.
グリップ芯材１０は上記突起部１３を備えているので、
グリップ芯材１０外周面とグリップ部材１４の孔１４ａ
の接触面積が大きく、両者は強固に接着している。ま
た、上記溝１２はグリップ芯材１０の末端まで設けられ
ているため、重心調整用の錘１１をグリップ芯材１３の
端部に位置させることが可能である。Since the grip core material 10 includes the protrusion 13,
Outer peripheral surface of the grip core material 10 and the hole 14a of the grip member 14
Has a large contact area, and both are firmly bonded. Further, since the groove 12 is provided up to the end of the grip core material 10, it is possible to position the weight 11 for adjusting the center of gravity at the end of the grip core material 13.
第４図から第６図に示す第２実施例では、第１実施例と
同様に、断面が略８角形状のグリップ芯材２０の外周面
の一面に、末端部から長手方向に重心調整用の錘２１を
収納するための略コ字状の溝２２を設けている。また、
該溝２２を設けていない一対の対向する外周面にはグリ
ップ芯材２０の長手方向に一対の板状の突起部２３を設
けている。In the second embodiment shown in FIGS. 4 to 6, as in the first embodiment, the center of gravity is adjusted from the end to the longitudinal direction on one surface of the outer peripheral surface of the grip core member 20 having a substantially octagonal cross section. A substantially U-shaped groove 22 for accommodating the weight 21 is provided. Also,
A pair of plate-like projections 23 are provided in the longitudinal direction of the grip core member 20 on the pair of opposing outer peripheral surfaces not having the groove 22.
第１実施例と同様に、該グリップ芯材２０にはウレタン
等の低発泡合成樹脂からなるグリップ部材２４が取り付
けられ、グリップ芯材２０の外周面とグリップ部材の孔
２４ａの接触面が接着している。尚、上記突起部２３の
外形寸法Ｈはグリップ部材２４の外形寸法と同一であ
る。Similar to the first embodiment, a grip member 24 made of a low foam synthetic resin such as urethane is attached to the grip core material 20, and the outer peripheral surface of the grip core material 20 and the contact surface of the hole 24a of the grip member are bonded. ing. The outer dimension H of the protrusion 23 is the same as the outer dimension of the grip member 24.
本実施例では、グリップ芯材の外周面に板状の突起部２
３を設けたため、グリップ芯材２０とグリップの孔２４
ａの接触面積が大きくなっており、グリップ芯材２０と
グリップ部材は強固に接合している。In this embodiment, the plate-shaped protrusion 2 is provided on the outer peripheral surface of the grip core material.
3, the grip core member 20 and the grip hole 24 are provided.
The contact area of a is large, and the grip core member 20 and the grip member are firmly joined.
また、溝２２をグリップ芯材２０端部まで設けているた
め、重心調整用の錘２１をグリップ芯材２０の端部に位
置することが可能である。Further, since the groove 22 is provided up to the end of the grip core 20, the weight 21 for adjusting the center of gravity can be positioned at the end of the grip core 20.
効果 以上の説明から明らかなように、本考案に係るラケット
フレームでは、グリップ芯材の外周面の長手方向に複数
の突起を備えているため、グリップ部材との接触面積が
大きく、両者の間の接合力が強い。そのため、スイング
時に遠心力によるグリップ部材の抜けが生じることがな
い。Effect As is clear from the above description, the racket frame according to the present invention is provided with a plurality of protrusions in the longitudinal direction of the outer peripheral surface of the grip core member, so the contact area with the grip member is large and the racket frame The joining force is strong. Therefore, the grip member does not come off due to centrifugal force during the swing.
さらに、重心調整用の錘を収納する溝を、グリップ芯材
の末端まで設けており、錘をグリップ芯材の末端部分に
配置することが可能であるため、重心の調整が容易であ
ると共に錘の重量を減らすことができ、ラケットフレー
ム全体の重量を軽量化することができる。Further, since the groove for accommodating the weight for adjusting the center of gravity is provided up to the end of the grip core material, and the weight can be arranged at the end portion of the grip core material, the center of gravity can be easily adjusted and the weight can be adjusted. The weight of the racket frame can be reduced, and the weight of the entire racket frame can be reduced.
第１図は本考案に係るラケットフレームの第１実施例の
概略を示す斜視図、第２図は第１実施例の側面図、第３
図は第２図の線Ｃ−Ｃの断面図、第４図は第２実施例の
概略を示す斜視図、第５図は第２実施例の側面図、第６
図は第５図の線Ｆ−Ｆの断面図、第７図はラケットフレ
ームの概略図、第８図は従来のラケットフレームのグリ
ップ芯材を示す側面図、第９図は従来の係合部を備えた
グリップ芯材を有するラケットフレームのグリップ芯材
を示す概略図、第１０図は第９図のＢ−Ｂ断面図であ
る。 ２、１０、２０……グリップ芯材 ３、１４、２４……グリップ部材 ４、１２、２２……溝 ５、１１、２１……錘 １３、２３……突起部FIG. 1 is a perspective view showing the outline of a first embodiment of a racket frame according to the present invention, FIG. 2 is a side view of the first embodiment, and FIG.
The drawing is a cross-sectional view taken along the line CC of FIG. 2, FIG. 4 is a perspective view showing the outline of the second embodiment, and FIG. 5 is a side view of the second embodiment.
5 is a sectional view taken along the line FF in FIG. 5, FIG. 7 is a schematic view of a racket frame, FIG. 8 is a side view showing a grip core material of a conventional racket frame, and FIG. 9 is a conventional engaging portion. FIG. 10 is a schematic view showing a grip core material of a racket frame having a grip core material provided with, and FIG. 10 is a sectional view taken along line BB of FIG. 9. 2, 10, 20 ... Grip core material 3, 14, 24 ... Grip member 4, 12, 22 ... Groove 5, 11, 21 ... Weight 13, 23 ... Projection
Claims (1)
周面の長手方向に複数の突起部を設けたラケットフレー
ムにおいて、 上記グリップ芯材の外周面に、ラケットフレーム全体の
重心調整用の錘を収容する溝を末端部分から長手方向に
設けていることを特徴とするラケットフレーム。1. A racket frame in which a plurality of protrusions are provided in a longitudinal direction of an outer peripheral surface of a grip core member on which a grip member is fitted, wherein a weight for adjusting the center of gravity of the entire racket frame is provided on the outer peripheral surface of the grip core member. A racket frame, characterized in that a groove for accommodating is provided in the longitudinal direction from the end portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989108694U JPH0614785Y2 (en) | 1989-09-18 | 1989-09-18 | Racket frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989108694U JPH0614785Y2 (en) | 1989-09-18 | 1989-09-18 | Racket frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0349870U JPH0349870U (en) | 1991-05-15 |
| JPH0614785Y2 true JPH0614785Y2 (en) | 1994-04-20 |
Family
ID=31657318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989108694U Expired - Lifetime JPH0614785Y2 (en) | 1989-09-18 | 1989-09-18 | Racket frame |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0614785Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0511885Y2 (en) * | 1986-03-14 | 1993-03-25 |
-
1989
- 1989-09-18 JP JP1989108694U patent/JPH0614785Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0349870U (en) | 1991-05-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |