JPH07185043A - Manufacture of ball for ball game - Google Patents

Manufacture of ball for ball game

Info

Publication number
JPH07185043A
JPH07185043A JP5334230A JP33423093A JPH07185043A JP H07185043 A JPH07185043 A JP H07185043A JP 5334230 A JP5334230 A JP 5334230A JP 33423093 A JP33423093 A JP 33423093A JP H07185043 A JPH07185043 A JP H07185043A
Authority
JP
Japan
Prior art keywords
ball
leather
leather piece
piece
spherical body
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.)
Pending
Application number
JP5334230A
Other languages
Japanese (ja)
Inventor
Takashi Fujikura
隆志 藤倉
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.)
MIYOUJIYOU GOMME KOGYO KK
Original Assignee
MIYOUJIYOU GOMME KOGYO KK
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 MIYOUJIYOU GOMME KOGYO KK filed Critical MIYOUJIYOU GOMME KOGYO KK
Priority to JP5334230A priority Critical patent/JPH07185043A/en
Publication of JPH07185043A publication Critical patent/JPH07185043A/en
Pending legal-status Critical Current

Links

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  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Toys (AREA)

Abstract

PURPOSE:To improve productivity by printing and pressure-welding the peripheral part surface of a synthetic leather material on a leather-covered ball such as basket ball or hand ball by a high frequency printer to constitute a leather piece having a pattern partitioning line, and bonding and fixing the leather piece to a ball body. CONSTITUTION:A ball body 11 is formed of an inner tube 3, a thread wound layer 4 uniformly wound on the inner tube 3 to reinforce it, and an intermediate lining layer 10 for enclosing the thread wound layer 4 to impart elasticity and the feel thereto. A leather piece 8 formed by cutting a synthetic leather material formed of a base part consisting of nonwoven fabric and a surface skin part consisting of a polyurethane into a prescribed pattern is stuck to the ball body 11, whereby a ball for ball game is manufactured. A pattern partitioning line is printed on the peripheral part of the leather piece 8 by use of a foil 14 by a marking 14 by the lowering motion of an upper electrode 12. After the leather piece 8 is pressure-welded by the second lowering motion of the upper electrode 12, a current is carried to the electrodes 12, 13 by a high frequency oscillator 17, whereby a black foil is printed 9.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は球技用ボール、特にバス
ケットボール、ハンドボール等の革貼りボールに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ball for ball games, and more particularly to a leather-coated ball such as a basketball or a handball.

【０００２】[0002]

【従来の技術】球技用ボールの既存の製造技術において
は、図１及び図２に示すように、一定圧力の空気を保持
するインナーチューブ３、このインナーチューブ３を補
強し、膨らませたとき、規格寸法を維持するために均一
に巻かれた糸巻層４、及び糸巻層４を***し弾性力、触
感性を付与する中貼り層５から構成された球状本体６
を、内面に所定パターンに刻設された凹条溝を有する球
状金型内で加熱、加圧し、生ゴム状態から弾性体ゴムに
加硫処理する。金型の内面の凹条溝により形成される球
状本体表面の凸条リブ２で区画された領域に、前もって
所定パターンに裁断された皮革片１を貼りつける。皮革
片１には、裏側の周縁部を斜めにこば削ぎした後、ゴム
系接着剤７を塗布する。この革貼り作業は、手作業によ
る皮革片の押圧、整置、接着を含む。2. Description of the Related Art In the existing manufacturing technology for ball games, as shown in FIGS. 1 and 2, an inner tube 3 for holding air at a constant pressure, and a standard when the inner tube 3 is reinforced and inflated. A spherical body 6 composed of a wound layer 4 uniformly wound to maintain its size, and an intermediate pasting layer 5 which wraps the wound layer 4 and imparts elastic force and tactile sensation.
Is heated and pressed in a spherical mold having a groove groove formed in the inner surface in a predetermined pattern to vulcanize the elastic rubber from the raw rubber state. The leather piece 1 previously cut into a predetermined pattern is attached to a region defined by the convex rib 2 on the surface of the spherical main body formed by the concave groove on the inner surface of the mold. To the leather piece 1, a rubber-based adhesive 7 is applied after shaving the back peripheral edge portion obliquely. This leather attaching operation includes manually pressing, aligning, and adhering the leather pieces.

【０００３】[0003]

【発明が解決しようとする問題点】かかる構成のボール
にあっては、次のような問題点があった。球状本体６を
加硫成形するのに用いられる金型内面には、凸条リブを
形成するための凹条溝が設けられているが、その加工は
球面体の機械加工であるため、複雑で工数が増し、従っ
てコスト高を招いていた。金型により球状本体６の加硫
処理を行う際、凹条溝へのゴム材料の充填が不足する
と、凸条リブ２に欠けや傷等の不良を発生する恐れがあ
った。皮革片１の縁削ぎ作業は手作業によるため、生産
性が低く、又ウレタン表層まで誤って削ぎ取り、不良品
となることもあった。革貼り作業も手作業によるため生
産性が低く、個人差による品質のバラツキも発生してい
た。これらの問題点は全て球状本体に凸条リブを形成す
ることから生じていることがわかる。そこで、本発明の
目的は、これらの課題を解決するようにした球技用ボー
ルの製造方法を提供することにある。Problems to be Solved by the Invention The ball having such a structure has the following problems. A concave groove for forming a convex rib is provided on the inner surface of the mold used for vulcanizing and molding the spherical body 6, but the machining is complicated because the machining is a spherical body. The number of man-hours is increased, and thus the cost is increased. When the spherical body 6 is vulcanized by the mold, if the groove material is insufficiently filled with the rubber material, defects such as chipping or scratches may occur in the ribs 2. Since the edging operation of the leather piece 1 is a manual operation, the productivity is low, and even the urethane surface layer is erroneously edged, resulting in a defective product. Productivity was low because leather was attached manually, and there was variation in quality due to individual differences. It can be seen that all of these problems are caused by forming the convex ribs on the spherical body. Then, the objective of this invention is providing the manufacturing method of the ball for ball games which was made to solve these problems.

【０００４】[0004]

【問題点を解決するための手段】本発明によれば、合成
皮革材の周縁部表面を高周波印刷機で印刷、圧着加工し
てパターン区画線を有する皮革片を構成し、前記皮革片
を球状本体に接着固定することを特徴とする球技用ボー
ルの製造方法を提供する。皮革片の球状本体への接着固
定は、２つ割りの成型金型の内面の所定位置に皮革片を
吸着により整置し、金型内に前記球状本体を投入した
後、金型を閉じて球状本体の内部に圧縮空気を充填し、
これにより球状本体と皮革片を圧着することにより行わ
れる。According to the present invention, the peripheral surface of a synthetic leather material is printed by a high frequency printing machine and pressure-bonded to form a leather piece having a pattern marking line, and the leather piece is spherical. Provided is a method for manufacturing a ball for ball game, which is characterized in that the ball is bonded and fixed to a main body. Adhesive fixing of the leather piece to the spherical body is performed by adhering the leather piece to a predetermined position on the inner surface of the molding die which is divided into two parts, and after inserting the spherical body into the mold, the mold is closed. Fill the inside of the spherical body with compressed air,
This is performed by pressing the spherical body and the leather piece together.

【０００５】[0005]

【実施例】本発明による球技用ボールの製造方法を図面
を参照して以下に詳細に説明する。球状本体１１は、在
来のものと同様に、一定圧力の空気を保持するインナー
チューブ３、このインナーチューブ３を補強し、規格寸
法を維持するために均一に巻かれた糸巻層４、及び糸巻
層４を***し弾性力、触感性を付与する中貼り層１０か
ら構成されているが、中貼り層１０は、在来の球技用ボ
ールにおけるような凸条リブを形成するための凹条溝の
ない、二分割された金型で加硫処理して形成される。皮
革片８は合成皮革材であって、不織布よりなる基部とウ
レタン等からなる表皮部とで構成され、所定のパターン
に裁断されている。本発明による球技用ボールの製造に
は、上部電極１２と下部電極１３及びこれら電極間に入
ったり出たりするように装置された箔１５から構成され
る高周波印刷機１６が用いられる。上部電極１２には刻
印１４が取付けられ、この刻印は、所定のパターンに裁
断された皮革片８の周縁部分に区画を割りつけるパター
ン区分線を印刷する形状をなしている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for manufacturing a ball for ball games according to the present invention will be described in detail below with reference to the drawings. Similar to the conventional one, the spherical body 11 has an inner tube 3 that holds air at a constant pressure, a wound layer 4 that is uniformly wound to reinforce the inner tube 3 and maintain a standard size, and a wound layer. The layer 4 is made up of an intermediate layer 10 that wraps the layer 4 to provide elasticity and tactile sensation. The intermediate layer 10 is a groove groove for forming a convex rib as in a conventional ball for ball game. It is formed by vulcanization in a mold that is divided into two parts. The leather piece 8 is a synthetic leather material, and is composed of a base portion made of a non-woven fabric and a skin portion made of urethane or the like, and cut into a predetermined pattern. In the manufacture of the ball for ball games according to the present invention, a high frequency printing machine 16 is used which is composed of an upper electrode 12, a lower electrode 13 and a foil 15 arranged so as to move in and out between these electrodes. A marking 14 is attached to the upper electrode 12, and the marking has a shape of printing a pattern dividing line for allocating a division to the peripheral portion of the leather piece 8 cut into a predetermined pattern.

【０００６】図３に示すように、下部電極１３の上に皮
革片８を置き、上部電極１２が一回目の下降をして、刻
印１４により箔１５から、例えば黒色のパターン区分線
を皮革片８の周縁部分に印刷し、次いで上昇する。箔１
５を電極間から側方（図４で見て紙面の後方又は手前）
に退避させた後、上部電極１２が２度目の下降をしてそ
の刻印１４により下部電極１６との間で皮革片８を圧着
した後、高周波発振器１７より電極に通電する。皮革片
８はこうしてその周縁部が従来のリブ幅の１／２（約
２．５mm）ほど圧着、黒色箔印刷９されることになる。
箔の色を変えることにより黒色以外の色にも対応が可能
である。皮革片８の裏面にはゴム系接着剤７’を塗布し
て予備乾燥をしておく。球状本体１１と皮革片８の接着
は皮貼り成型機を用いて行われる。皮貼り成型機は２分
割された皮貼り成型金型を有し、該金型にはその各半球
状内面に多数の微小孔が穿設されている。微小孔から空
気を吸引することによって、成型金型内面の所定位置に
皮革片８を吸着し整置する。球状本体１１を金型内へ投
入し、金型半球部分を重ね合わせてその中の球状本体１
１内部へ圧縮空気（例えば、９kg／cm2 ）を充填する。
こうして球状本体１１と皮革片８は圧着される。As shown in FIG. 3, the leather piece 8 is placed on the lower electrode 13, the upper electrode 12 descends for the first time, and the marking 14 is used to remove, for example, a black pattern dividing line from the foil 15. Print on the peripheral portion of 8 and then rise. Foil 1
5 from the side of the electrode to the side (rear or front of the paper surface as seen in FIG. 4)
Then, the upper electrode 12 descends for the second time, and the leather piece 8 is pressure-bonded between the upper electrode 12 and the lower electrode 16 by the marking 14, and then the high frequency oscillator 17 energizes the electrode. In this way, the peripheral edge of the leather piece 8 is pressure-bonded by about 1/2 (about 2.5 mm) of the conventional rib width, and black foil printing 9 is performed.
It is possible to support colors other than black by changing the color of the foil. A rubber adhesive 7'is applied to the back surface of the leather piece 8 and preliminarily dried. Bonding between the spherical body 11 and the leather piece 8 is performed by using a skin-paste molding machine. The skin-sticking molding machine has a skin-sticking molding die which is divided into two parts, and the mold has a large number of minute holes formed on the inner surface of each hemisphere. By sucking air from the minute holes, the leather piece 8 is adsorbed and arranged at a predetermined position on the inner surface of the molding die. The spherical main body 11 is put into the mold, the hemispherical parts of the mold are superposed, and the spherical main body 1 therein.
1 Compressed air (for example, 9 kg / cm 2 ) is filled inside.
In this way, the spherical body 11 and the leather piece 8 are pressure bonded.

【０００７】[0007]

【発明の効果】球状本体を加硫する金型は、在来の凸条
リブに対応した凹条溝を刻設しなくてもよいため、金型
の製作下降が容易になり、従って安価なものとなる。金
型による球状本体の加硫処理を行う際の凹条溝が不要と
なったため、凸条リブの形成に伴う不良の発生は皆無と
なる。皮革片の縁削ぎ作業の工程が省略されるためコス
トダウンが計れる。従来の手作業による皮貼り作業に比
べて著しく短時間で皮貼り成型を行えるため、生産性が
格段に向上し、品質も安定する。これらのことから、安
価な球技用ボールの提供が可能となる。The mold for vulcanizing the spherical main body does not need to be provided with the groove groove corresponding to the conventional convex rib, so that the mold can be easily manufactured and lowered, and therefore the cost is low. Will be things. Since the groove groove is not needed when the spherical body is vulcanized by the mold, no defect is caused by forming the rib rib. Since the process of edging the leather pieces is omitted, the cost can be reduced. Compared with the conventional manual peeling work, the peeling and molding can be performed in a significantly shorter time, so that the productivity is significantly improved and the quality is stable. From these, it becomes possible to provide an inexpensive ball for ball game.

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

【図１】在来の方法により作られた球技用ボールの斜視
図である。FIG. 1 is a perspective view of a ball game ball made by conventional methods.

【図２】図１のＡーＡ線における球技用ボールの部分断
面図である。FIG. 2 is a partial cross-sectional view of the ball for ball game taken along the line AA of FIG.

【図３】本発明による方法で作られた球技用ボールの図
２と同様な断面図である。3 is a cross-sectional view similar to FIG. 2 of a ball game ball made by the method of the present invention.

【図４】本発明による球技用ボールの製造方法に用いら
れる製造装置の概略図である。FIG. 4 is a schematic view of a manufacturing apparatus used in a method for manufacturing a ball for ball game according to the present invention.

【符号の説明】[Explanation of symbols]

８ 皮革片 ９ パターン区分線 １１ 球状本体 １６ 高周波印刷機 8 Leather piece 9 Pattern dividing line 11 Spherical body 16 High frequency printing machine

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 合成皮革材の周縁部表面を高周波印刷機
で印刷、圧着加工してパターン区分線を有する皮革片を
構成し、前記皮革片を球状本体に接着固定することを特
徴とする球技用ボールの製造方法。1. A ball game, characterized in that the peripheral surface of a synthetic leather material is printed by a high-frequency printing machine and pressure-bonded to form a leather piece having a pattern dividing line, and the leather piece is adhesively fixed to a spherical body. Method for manufacturing balls. 【請求項２】 皮革片の球状本体への接着固定は、２つ
割りの成型金型の内面の所定位置に皮革片を吸着により
整置し、金型内に前記球状本体を投入した後、金型を閉
じて球状本体の内部に圧縮空気を充填し、これにより球
状本体と皮革片を圧着することにより行われる、請求項
１に記載の球技用ボールの製造方法。2. The adhesive fixing of the leather piece to the spherical body is carried out by arranging the leather piece by adsorption at a predetermined position on the inner surface of the molding die which is divided into two parts, and then inserting the spherical body into the mold, The method for producing a ball for ball game according to claim 1, wherein the method is carried out by closing a mold and filling the inside of the spherical body with compressed air, thereby press-bonding the spherical body and the leather piece.
JP5334230A 1993-12-28 1993-12-28 Manufacture of ball for ball game Pending JPH07185043A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5334230A JPH07185043A (en) 1993-12-28 1993-12-28 Manufacture of ball for ball game

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5334230A JPH07185043A (en) 1993-12-28 1993-12-28 Manufacture of ball for ball game

Publications (1)

Publication Number Publication Date
JPH07185043A true JPH07185043A (en) 1995-07-25

Family

ID=18275007

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5334230A Pending JPH07185043A (en) 1993-12-28 1993-12-28 Manufacture of ball for ball game

Country Status (1)

Country Link
JP (1) JPH07185043A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014518135A (en) * 2011-06-28 2014-07-28 ナイキ インターナショナル リミテッド Casing for sports ball and method for manufacturing the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS583710A (en) * 1981-07-01 1983-01-10 Hitachi Ltd Rolling mill
JPS6036305A (en) * 1983-07-18 1985-02-25 エア・プロダクツ・アンド・ケミカルズ・インコーポレイテツド Continuous manufacture of enzyme
JPS63283U (en) * 1986-06-20 1988-01-05

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS583710A (en) * 1981-07-01 1983-01-10 Hitachi Ltd Rolling mill
JPS6036305A (en) * 1983-07-18 1985-02-25 エア・プロダクツ・アンド・ケミカルズ・インコーポレイテツド Continuous manufacture of enzyme
JPS63283U (en) * 1986-06-20 1988-01-05

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014518135A (en) * 2011-06-28 2014-07-28 ナイキ インターナショナル リミテッド Casing for sports ball and method for manufacturing the same

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