JPH02951B2 - - Google Patents
Info
- Publication number
- JPH02951B2 JPH02951B2 JP59021512A JP2151284A JPH02951B2 JP H02951 B2 JPH02951 B2 JP H02951B2 JP 59021512 A JP59021512 A JP 59021512A JP 2151284 A JP2151284 A JP 2151284A JP H02951 B2 JPH02951 B2 JP H02951B2
- Authority
- JP
- Japan
- Prior art keywords
- racket
- frame
- mold
- racket frame
- reinforcing
- 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
- 239000000463 material Substances 0.000 claims description 30
- 230000003014 reinforcing effect Effects 0.000 claims description 20
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 238000009415 formwork Methods 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 19
- 238000000034 method Methods 0.000 description 10
- 238000000465 moulding Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 5
- 239000000835 fiber Substances 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】
〔技術分野〕
本発明は補強された木質ラケツトの一次フレー
ムの製造方法に関し、特に木質と繊維で強化され
たプラスチツクとをサンドイツチ状にモールド成
型することによつて量産し、製造工程を大いに単
純化できるようにした木質ラケツトの一次フレー
ム製造方法に関するものである。[Detailed Description of the Invention] [Technical Field] The present invention relates to a method for manufacturing a primary frame for a reinforced wooden racket, and in particular to a method for mass producing a primary frame of a reinforced wooden racket by molding wood and fiber-reinforced plastic into a sandwich-like structure. The present invention relates to a method for manufacturing a primary frame for a wooden racket which greatly simplifies the manufacturing process.
最近、市販されているグラフアイト繊維、又は
ガラス繊維を熱硬化性樹脂に浸漬してなる木質ラ
ケツトのなかに、補強シートをラケツトの木質フ
レームの相対応する素地面に貼付け、木質と金属
との特性を兼ねたものがあるが、量産性の向上と
製造工程の単純化の点について克服すべき問題が
多々存在する。
Recently, a reinforcing sheet is attached to the corresponding base surface of the wooden frame of the racket in a wooden racket made by soaking graphite fiber or glass fiber in a thermosetting resin, which is commercially available. Although there are some that have certain characteristics, there are many problems that need to be overcome in terms of improving mass productivity and simplifying the manufacturing process.
上記改良木質ラケツトフレームの製造方法の一
つとして、熱硬化された上記補強シート材を、押
抜き型にかけてラケツトフレーム形状のシートに
打貫き、そのシートを木質フレーム材の相対応す
る素地面に貼付け、仕上げ加工を経てラケツトフ
レームの一次素材に仕上げられる方法が有るが、
一枚の補強シート材を押抜き型にかけ打貫き成形
するので、切れ端が多く、歩留りが悪いという不
都合があつた。その上、材料自体がハイコスト
と、打貫き成形及び補強シートの貼付後のはみ出
し縁の修正時に繊維がよく短く切れるために補強
効果が低減する不都合もあつた。 One method for manufacturing the improved wooden racket frame is to punch the thermoset reinforcing sheet material into a racket frame-shaped sheet using a punching die, and then insert the sheet into a corresponding base surface of the wooden frame material. There is a method of pasting it on the racket frame and finishing it as the primary material for the racket frame.
Since a single piece of reinforcing sheet material is punch-formed using a punching die, there are many scraps and the yield is low. Moreover, the material itself is expensive, and the reinforcing effect is reduced because the fibers are often cut short when punching and correcting the protruding edges after pasting the reinforcing sheet.
更に、ラケツトフレームの形状に応じて細長い
形状に裁断した未硬化の補強シート材を、余分に
見込代をとつたラケツトフレームの各部分の形に
形成し、金型の各部分にならぶように順次入れて
熱硬化させ、それにより形成されたラケツトフレ
ーム形状の補強硬化シートを、接着材でラケツト
フレーム材の相対応する素地面に貼付け、再び研
摩仕上げしてラケツトの一次フレームに仕上げら
れる方法をも採られていた。然し乍ら、この方法
にも補強シートは、事前に成形された後、ラケツ
トフレーム材の素地面に貼付されるという手順に
よるため、製造工程が煩雑化し、その上、接着材
の塗布、バリ取り、研摩仕上げ等に手間がとられ
て不都合であると共に、その未硬化のシートはラ
ケツト素地面の実際面積より必要以上の見込代を
要して歩留りが良好でないことを云うまでもな
く、成形時の加熱、加圧及びラケツトフレーム材
の素地面への貼付加圧等の機械設備をも必要とな
り、コスト高となり、更に、前記の製造方法に見
られるように補強効果が低減するという不都合も
あつた。 Furthermore, an uncured reinforcing sheet material cut into long and thin pieces according to the shape of the racket frame is formed into the shape of each part of the racket frame with an extra allowance, so that it lines up with each part of the mold. The reinforcing cured sheet in the shape of a racket frame is then attached to the corresponding base surface of the racket frame material using an adhesive, and polished again to form the primary frame of the racket. A similar method was also adopted. However, this method also requires the reinforcing sheet to be formed in advance and then attached to the base surface of the racket frame material, which complicates the manufacturing process. Not only is it inconvenient because it takes time and effort to polish and finish the sheet, but the uncured sheet requires an estimated allowance of more than necessary than the actual area of the racket base surface, and the yield is not good. It also requires mechanical equipment for heating, pressurizing, and applying pressure to the racket frame material on the base surface, resulting in high costs.Furthermore, as seen in the above manufacturing method, there is the inconvenience of reducing the reinforcing effect. Ta.
本発明は叙述せる欠陥、乃至は不都合を解消せ
んとして提案せられたものである。即ち、その主
なる目的は製造工程を単純化し、以つて生産の手
数を低減して、量産に寄与し、コスト安の木質ラ
ケツトの一次フレームの製造方法を提供せんとす
ることにある。
The present invention has been proposed to overcome the deficiencies and inconveniences mentioned above. That is, the main purpose is to simplify the manufacturing process, reduce the number of production steps, contribute to mass production, and provide a low-cost manufacturing method for the primary frame of a wooden racket.
本発明の次の目的は、軽質補強材をラケツトの
フレーム材へ貼合させて軽量化な木質ラケツトの
一次フレームの製造法を提供せんとすることにあ
る。 Another object of the present invention is to provide a method for manufacturing a lightweight primary frame for a wooden racket by laminating a lightweight reinforcing material to the frame material of the racket.
本発明のまた次の目的は、木質ラケツトの素材
と補強材とを一気に加熱硬化と同時に加圧して密
着結合させるラケツトの一次フレームを提供せん
とすることにある。 Another object of the present invention is to provide a primary frame for a racket in which the material of the wooden racket and the reinforcing material are heated and cured at the same time and pressurized to tightly bond them together.
本発明の更にまた次の目的とするところは、モ
ールド中に於けるラケツト形状の型表面積が丁度
ラケツト素材のそのものであればよく、もつて素
材節約に寄与されるような木質ラケツトの一次フ
レームを提供せんとすることにある。 A further object of the present invention is to create a primary frame for a wooden racket in which the surface area of the racket shape in the mold is exactly that of the racket material, thereby contributing to material savings. This is what we aim to provide.
そこで本発明は、二つのラケツトフレーム表面
部のみの形の成型キヤビテイーが形成された割型
状金型を設備し、細長いシートテープに裁断され
た未硬化の生補強シート材を、前記金型内に一面
にならべてほぼ完全なラケツト形状補強部に形成
させ、この表面に接着剤を塗布し、すでに形成済
みの木質ラケツトフレームの素地面に貼合かつ硬
化成形してラケツトの一次フレームに形成し、そ
れを型枠から取出し、微細なバリを除去して修正
し所要のラケツト一次フレームに仕上げる製造方
法を特徴とするものである。 Therefore, the present invention is equipped with a split-shaped mold in which molding cavities in the form of only the surface portions of two racket frames are formed, and an uncured raw reinforcing sheet material cut into elongated sheet tape is placed in the mold. The reinforcing part is lined up on the inside to form an almost perfect racket shape, and this surface is coated with adhesive and bonded to the base surface of the already formed wooden racket frame and hardened to form the racket's primary frame. The manufacturing method is characterized by forming the racket, taking it out of the mold, removing minute burrs and modifying it, and finishing it into the required primary racket frame.
〔実施例の説明〕
上記及び他の目的と特徴は、その実施例に基づ
いて以下に添付図面を参照しながら説明すれば、
より一層明らかになるであろう。但し、図面は説
明のためのもので、もとよりこれによつて制限を
受けるものではなく、本発明の精神を逸しない限
り更に種々の変化を許容しうることは当然であ
る。[Description of Embodiments] The above and other objects and features will be described below based on the embodiments and with reference to the accompanying drawings.
It will become even clearer. However, the drawings are for illustrative purposes only, and are not intended to limit the scope of the invention, and it goes without saying that various changes may be made without departing from the spirit of the invention.
第１図乃至第４図は本発明の製造工程を示すも
ので、この順序を追つて説明すれば、本発明は、
Ａ 夫々の何れか片側の面部に所定の巾、及び略
２mm〜３mmの深さの補強部成型キヤビテイ１３
を凹設したモールド型枠１１，１２を設け；
Ｂ 未硬化の熱硬化性樹脂を浸漬したグラフアイ
ト繊維の生シート材を裁断して細長いテープ状
のシート１４に形成し；
Ｃ 前記テープ状のシート１４を型１２及び型１
１よりなる前記成形キヤビテイ１３内に敷い
て、硬化後は全面的に１mm前後の厚さの強化層
となるようにし；
Ｄ 前記補強シート１４面に接着剤を塗布し；
Ｅ 巳にラケツトフレームの形状に加工形成され
た木質フレーム素材２１を、サンドイツチ状に
二つの型枠１１，１２の間に挾み、前記フレー
ム素材２１をして成型キヤビテイ１３内に、表
面から約１〜２mm前後の深さに嵌入せしめ；
Ｆ 前記素材２１と型枠１１，１２とを一諸に同
時に多数を第２図に示すように夫々の加圧加熱
機３０の挾圧棚３１に置き、圧力を加えながら
加熱し、前記補強シートが熱硬化してラケツト
フレーム素材２１の素地面に接着させ、ラケツ
トフレームの一次製品に形成させ；最後には
Ｇ 前記一次製品４０を取出し、バリを除き仕上
げ研摩を加え、次の穴開きや把柄部加工に所要
の木質ラケツトの一次フレームに仕上げられ
る。 Figures 1 to 4 show the manufacturing process of the present invention, and if explained in this order, the present invention has a predetermined width on one side of each of Depth reinforcement molding cavity 13
B. Cutting a raw graphite fiber sheet material soaked with an uncured thermosetting resin to form an elongated tape-like sheet 14; C. Sheet 14 is placed in mold 12 and mold 1
D. Apply adhesive to the surface of the reinforcing sheet 14; E. Place the racket frame on the bottom. A wooden frame material 21 processed and formed into the shape of is sandwiched between two formworks 11 and 12 in a sandwich pattern, and the frame material 21 is placed in the molding cavity 13 at a distance of about 1 to 2 mm from the surface. F. Place the material 21 and the formworks 11, 12 in large numbers at the same time on the clamping shelf 31 of each pressure heating machine 30 as shown in FIG. 2, and press them while applying pressure. By heating, the reinforcing sheet is thermally cured and adhered to the base surface of the racket frame material 21, forming the primary product of the racket frame; In addition, it is finished as the primary frame for the wooden racket required for subsequent hole drilling and handle processing.
上記によれば、少くとも補強シート材を事前に
熱硬化及びその後処理の手数が省けて工程が単純
化せられ、金型の成型キヤビテイはサイズが従来
のものより見込代及び切端が縮減されたことによ
つて原料が無駄なく最大限に利用され、しかも、
硬化と同時に接着することは粘着力の増大となつ
て、従来の製造法に見るような不整や反りがなく
なり、成品歩留の向上に寄与することができた。
又、補強シート材の厚さは木質ラケツト部の素材
に応じてどのようにも加減できるので、オーバウ
エートや不良率も著しく低い製造工程としても、
従来にない著しい効果を奏するものである。
According to the above, at least the process is simplified by eliminating the need to heat-cure the reinforcing sheet material in advance and post-processing, and the size of the molding cavity of the mold is reduced in size and in the cut edge compared to conventional ones. This allows raw materials to be used to the fullest without wasting them, and
Adhesion at the same time as curing increases adhesive strength, eliminates irregularities and warpage seen in conventional manufacturing methods, and contributes to improved product yield.
In addition, the thickness of the reinforcing sheet material can be adjusted in any way depending on the material of the wooden racket, so the manufacturing process has extremely low overwage and defect rates.
This has a remarkable effect that has not been seen before.
第１図は本発明の一次フレームの製造工程を示
すフローチヤート、第２図は本発明の製造方法に
おける金型及び素材の配置を示す分解立体図、第
３図は本発明製造方法中の加熱加圧成型工程のた
めの加熱加圧機を示した斜面図、第４図は本発明
によつて成型されたラケツトの一次フレーム製品
の立体図、第５図は第４図のＶ−Ｖ線断面図であ
る。
符号説明、１１，１２……モールド型わく、１
３……成型キヤビテイ、１４……シート、２１…
…フレーム素材、３１……挾圧棚。
Figure 1 is a flowchart showing the manufacturing process of the primary frame of the present invention, Figure 2 is an exploded three-dimensional view showing the arrangement of molds and materials in the manufacturing method of the present invention, and Figure 3 is the heating process in the manufacturing method of the present invention. A perspective view showing a heating and pressurizing machine for the pressure molding process, FIG. 4 is a three-dimensional view of the primary frame product of the racket molded according to the present invention, and FIG. 5 is a cross section taken along the line V-V in FIG. 4. It is a diagram. Code explanation, 11, 12...Mold type frame, 1
3...Molding cavity, 14...Sheet, 21...
... Frame material, 31... Clamping shelf.
Claims (1)
テイが形成されたモールド型枠を設置し、細長の
テープ状シートに裁断された未硬化の生補強シー
ト材を、前記モールドキヤビイテイ内に均一に布
置して、略ラケツトフレームの補強部の形状を形
成させ、これに接着剤を塗布し、モールドキヤビ
テイに生シート材の上方に予め成形済みの木質ラ
ケツトフレーム素材を嵌入し、サンドイツチ状に
両モールド型枠間に挾んでおき、これを加熱加圧
することによつて補強シート材を、前記木質ラケ
ツトフレーム材の素地面に接触すると共に熱硬化
してラケツトフレームの一次製品に形成させ、そ
の後、それを型枠から取出しバリを除去し、仕上
げ研摩をして所要のラケツト一次フレームに仕上
げることを特徴とする補強された木質ラケツトの
一次フレームの製造法。1. Install a mold formwork in which mold cavities for the reinforcing parts of two racket frames have been formed, and place uncured raw reinforcing sheet material cut into elongated tape-like sheets uniformly within the mold cavities. Then, the reinforcing part of the racket frame is roughly formed, and adhesive is applied to this, and the pre-formed wooden racket frame material is inserted into the mold cavity above the raw sheet material, forming a sander-cheese shape. By sandwiching the reinforcing sheet material between both mold frames and applying heat and pressure, the reinforcing sheet material comes into contact with the base surface of the wooden racket frame material and is thermally cured to form the primary product of the racket frame. , and then taking it out of the formwork, removing burrs, and finishing polishing to finish it into the required primary racket frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59021512A JPS60165968A (en) | 1984-02-08 | 1984-02-08 | Production of primary frame of reinforced woody racket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59021512A JPS60165968A (en) | 1984-02-08 | 1984-02-08 | Production of primary frame of reinforced woody racket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60165968A JPS60165968A (en) | 1985-08-29 |
| JPH02951B2 true JPH02951B2 (en) | 1990-01-09 |
Family
ID=12057021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59021512A Granted JPS60165968A (en) | 1984-02-08 | 1984-02-08 | Production of primary frame of reinforced woody racket |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60165968A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0435745U (en) * | 1990-07-19 | 1992-03-25 |
-
1984
- 1984-02-08 JP JP59021512A patent/JPS60165968A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0435745U (en) * | 1990-07-19 | 1992-03-25 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60165968A (en) | 1985-08-29 |
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