C CVar, c 2 6 6 ΛΠ 經濟部中央標準局貝工消费合作社印製 五、發明説明u) [産業上利用領域] 本發明像開於合成榭脂製之高爾夫球桿頭之製法。 [先前技術] 高爾夫球桿之中，木桿（wood), 3號木桿（spoon), 4號 木捍（baffy ), 5號木桿（cleek)等之球桿頭原先偽由柿（ persimmon)等之木材所製造，最近則以金靥製或合成樹脂 製者較普及。 . 尤其最近大眾之焦點集中於合成樹脂製之球捍頭，以輕 量芯材為嵌件（insert),在其周圍藉射出成形設置本體。 此等球桿頭因本體内部為輕量，故可使球捍頭全體變大。 此種球桿頭中，輕量芯材可使用聚胺基甲酸酯（urethane ),ABS樹脂，聚磺酸酯，尼龍，耐衝擊性聚苯乙烯等之樹 脂發泡體乃至柞絲绸（pongee)。在此情形下，為使芯材儘 量軽量化而使球桿頭全體加大起見，對發泡成形時之條件 下功夫，有在所獲得之發泡體中心部形成空洞，或貫通發 泡體而在内部設置空洞者。又，本賭之材質可使用混入磺 纖雒等補強纗維之各種熱可塑性樹脂或熱硬化性樹脂。 [發明欲解決的課題] 以均一之發泡體作為輕量芯材使用，因無法忍受本體形 成用之射出成形時之壓力，故芯材之軽量化有其限度。而 本醸亦有薄壁化或壁均一化之限度，其結果，即使使球桿 頭全體變大，當然亦有其限度。 在發泡醱成形時，使中心部形成空洞之方法，雖可使輕 量芯材更軽量化，然而由於發泡成形時，些微條件之變更 (請先閲請背而之注意事項#填寫本頁) 本紙張尺度逍用中B B家標毕(CNS)肀4規格(2丨0X297公*) 81. 7. 20,000^(11) 3C CVar, c 2 6 6 ΛΠ Printed by the Beigong Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of invention u) [Industrial application field] This invention is like a method of manufacturing a golf club head made of synthetic resin. [Prior Art] Among the golf clubs, the club heads of wood, No. 3 spoon, No. 4 baffy, No. 5 club (cleek), etc. were originally persimmon ), Etc., made of wood, etc., have recently been popularized by those made of gold or synthetic resin. Especially recently, the focus of the public has been on ball heads made of synthetic resin, using a lightweight core material as an insert, and surrounding the body by injection molding. Since these club heads are lightweight, the entire body of the club head can be enlarged. In this type of club head, a polyurethane foam (urethane), ABS resin, polysulfonate, nylon, impact-resistant polystyrene, etc. resin foam or even tussah silk (pongee) can be used for the lightweight core material ). In this case, in order to make the core material as small as possible and to increase the overall club head, under the conditions during foam molding, a cavity may be formed in the center of the obtained foam body, or through foaming Set up the hollow inside. In addition, the material of this bet can use various thermoplastic resins or thermosetting resins which are mixed with sulfonamide, etc. to reinforce the dimensional strength. [Problems to be Solved by the Invention] The use of a uniform foam as a lightweight core material can not endure the pressure during injection molding for body formation, so the quantification of the core material has its limits. In addition, there is a limit to thinner walls or uniform walls. As a result, even if the entire club head is made larger, there are of course limits. The method of making hollows in the central part during foam molding can make the lightweight core material more quantified, but due to the slight changes in conditions during foam molding (please read the back and forth notes #fill in this first Page) This paper is used in the BB family standard (CNS) 4 specifications (2 丨 0X297 g *) 81. 7. 20,000 ^ (11) 3
A C L C 66 Λπ 經濟部中央梂準局员工消#合作社印製 五、發明説明（2 ) ,會在空洞形成位置産生軀向，而常常空洞之形狀不定， 其結果，最佳擊球點（sweet spot)因球桿之品質而無法固 定。而貫通發泡體在内部設置空洞之方法，因手工作業之 故，有品質無法一定且成本高之缺點，又，該等之任一方 法中，本質上，藉發泡體作為輕量芯材使用會有上述之問 題産生（薄壁化及壁均一化之限度）。 本發明有粦於上述之狀況，其目的偽提供一種製造通稱 為十字桿頭之合成樹脂製高爾夫球桿頭之製造方法，其與 使用發泡體所形成輕量芯材之方法完全不同。 [解決課題之手段] 本發明之高爾夫球捍頭之製法，其特擻為，將作為主劑 之尿素及水溶性高分子之組成物加以成形而獲得之原型被 作為芯材（1)使用，以該芯材U)為嵌件，由其周圍射出合 成樹脂而製造射出成形本體（2),其後，使前述芯材（1)由 水溶出者。 以下詳細説明本發明。 本發明是將以尿素及水溶性高分子為主劑之組成物加以 成形而所獲得之原型作為芯材（1)使用。水溶性高分子之 代表例為聚乙烯醇。而芯材（1)可依下述製出。 亦即，混合尿素及水溶性高分子粉末或顆粒，加熱時尿 素融解，故攪拌時，在其所融解之尿素溶解有水溶性高分 子。此時亦可添加水。其後加以冷卻，並粉碎成適當的粒 度。或者，在均勻地混合尿素之水溶液舆水溶性离分子之 水溶液之後，乾燥至水分率為2重量：《程度以下，並加以 (請先閲讀背而之注意事吼再蜞寫本頁) 本紙張尺度逍用中B圃家«準(CNS)T4規格(210X297公;¢) 81. 7. 2ϋ,00ϋίΚ(1Ι) 4 經濟部中央標準局R工消費合作杜印製 205020 五、發明説明（3 ) 粉碎。利用壓縮成形，射出成形等之手段，將如此所得之 粉碎體成形而成為芯材（1),而此時，幾乎不會造成成形 收縮（mold shrinkage),如此為其特撤。成形條件可採用 例如溫度90〜125¾ ,壓力200 Kg/ i程度以上之條件。 上述之輕置芯材偽作為嵌件使用，在其周圍進行合成樹 脂之射出成形時，可形成射出成形本龌（2)。此等目的之 合成樹脂，開始是使用ABS樹脂，聚磺酸脂，尼艏，聚醚 醚銅之成形用樹脂（大多使用熱可塑性樹脂，亦有使用熱 硬化性樹脂者），亦有將兩種以上樹脂摻合作為聚合物合 金使用者。此時最好是在成形用樹脂適當量混入硪織維， 芳香族醛胺编維，晒维維（boron fiber),玻瑰谶維，鈦 鑛維，晶絲编維（whiskers)等之補強用短鑛維，其他亦可 適置配合该料（filler),著色剤，安定劑，可塑劑或其他 添加劑。 所播得之射出成形物，在射出成形本體（2)之中空部具 有芯材（1)為内包之構成。芯材（1)由常溫乃至加溫之水可 容易地溶出，故可自射出成形本體（2)之中空部除去芯材 (1)〇 如此所獲得之球捍頭之中空部，若有必要可充填輕董之 充《物。例如，將聚氨基甲酸酯灌入中空部内，可使其高 發泡。 球捍頭可依餺要施以研磨或塗裝，進而装設必要之零件 及柄（shaft)成為球桿。 本發明之离爾夫球桿頭可使用於木桿（wood), 3號木捍（ 本纸張尺度適用中國國家標準（CN’S)甲4规格（210 X 297公货） ---------：---1------------装------.玎------線 (請^閱‘；*';背而之;'.t.t灰項再填寫本頁) 5 205020 Λ 6 Β6_ 五、發明説明（4 ) spoon), 4號木桿（baffy), 5號木桿（cleek)等之球捍頭。 [作用] 本發明之方法像將作為主劑之尿素及水溶性高分子之組 成物加以成形而所獲得之原型暫時用做芯材（1),該芯材 (1)與習知之發泡體製之輕量芯材不相同，不僅堅固，在 芯材（1)成形之際幾乎不會引起成形收縮，故可f做為嵌 件之芯材（1)之射出成形本體（2)之射出在高壓下進行。由 此，射出成形本體（2)可為薄壁化，僅其分量就可使中空 部之容積增大。又，在射出成形本體（2)可自由地形成均 一壁，球桿頭之設計自由度比習知者更大。 再者，芯材（1)之製造及射出成形本醱（2)形成後之芯材 (1)之溶出亦容易，製造過程並不複雜。 [實施例] 其次，依實施例進一步說明本發明。下述之「分J為重 量分之簡稱。 實施例1 圈1偽以模式表示本發明製法之說明圖。 混合尿素粉末90分及聚乙烯醇粉末5分，在加溫至135Ό 時，尿素融解，一邊保溫一邊攪拌，在融解尿素中使聚乙 烯酵溶解。使其放冷並固化之，其後以粉碎機粉碎。所獲 得之粉醑被供給至射出成形機，在溫度120D,射出壓力 200〜3001(8/0^,縳型溫度20〜80C,成形循琛150秒之 條件下進行射出成形，而獲得附有固定用鑄型心型銷（ core pin)(3)之芯材（1)，此等狀態不於圖1之（A)〇 衣紙張尺度適用中國國家標準（CNS)甲4規格（210 X 297公釐） ' 6 ----------------：---------.----裝--------.玎------線 (請先閱讀背面之注意事項再塡寫本頁) 經濟部中央標準局員工消費合作社印製 2050^0 Λ 6 Β6__ 五、發明説明（5 ) 其次，將此附有固定用鑄型心型銷（3)之芯材作為嵌件 設定在射出成形機，將混入硪鑛維製之短鐵維之ABS樹脂 被供給至射出成形機，在樹脂溫度230¾，射出歷力700h / ο»1，鑄型溫度40t：,成形循琛80秒之條件下進行射出 成形，形成射出成形本醴（2)。此狀態示於圈1之（B)。 將上述所獲得成形物之芯材（1)部份以溫水噴蓀時，如 κ 圖1(C)般，因芯材（1)易自射出成形本醱（2)溶出，故在除 去芯材（1)後之射出成形本體（2)施以塗裝。 如此所《得之球桿頭，舆習知通稱為十宇捍頭之射出成 形球捍頭（在内部使用具有空洞之ABS樹脂製發泡芯材，以 磺纖維混入ABS樹脂形成本體）比較.在相同重量下大了一 圏。在此球桿頭裝設必要零件及捍柄成為球桿製品。又， 亦可在射出成形本體（2)之中空部噴霧如聚胺基甲酸酯等 使之發泡者。 [發明效果] 依本發明之方法，為使射出成形本鼸（2)可薄壁化及壁 均一化•可使其較習知之球捍頭更形增大，又可使球桿頭 之設計自由度變大。 再者，其製造過程不致過於禊雜，可經常製造一定品質 之球桿頭，有不致於因製品之不同而使最佳擊球點偏離之 優黏。 因此，依本發明之方法所製迪之高爾夫球捍頭，在性能 ，設計•外觀方面，均可迎合新時代之要求。 [園面之籣單說明] 本紙張尺度適用中國國家標準（CNS)甲4規格（210 X 297公货） 7 ------------------------裝---.---ir-------線 (請先閱讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消費合作社印製 A 6 Β6 五、發明説明（6 ) [圖1] 以模式表示本發明製法之說明圖。 [符號說明] (1)......芯材 (2 ).....•射出成形本體 (3)……固定用簿型心型銷（core pin)。 ---------1-11.------------裝-----·ι訂-------線 1,. (請先閱-4背面之注意事項再塡寫本頁) 經濟部中央標準局員工消費合作社印製 本紙張又度適用中國國家標準（CNS)甲4规格（210 X 297公釐）ACLC 66 Λπ Printed by the Ministry of Economic Affairs, Central Bureau of Industry, and Cooperatives. 5. Description of the invention (2). The direction of the cavity will be generated, and the shape of the cavity is often uncertain. As a result, the sweet spot is the best. ) Cannot be fixed due to the quality of the club. The method of setting hollows through the foam body has the disadvantage that the quality is not certain and the cost is high due to manual work. In addition, in any of these methods, in essence, the foam body is used as a lightweight core material The use will cause the above-mentioned problems (thin wall thickness and uniform wall limit). The present invention has the above situation, and its purpose is to provide a method for manufacturing a synthetic resin golf club head commonly known as a cross head, which is completely different from the method of forming a lightweight core material using a foam. [Means for solving the problem] The method for producing a golf ball head of the present invention is characterized in that a prototype obtained by molding a composition of urea as a main agent and a water-soluble polymer is used as a core material (1), Using this core material U) as an insert, an injection molded body (2) is manufactured by injecting synthetic resin from its periphery, and thereafter, the core material (1) is eluted from water. The present invention will be described in detail below. In the present invention, a prototype obtained by molding a composition containing urea and a water-soluble polymer as a main agent is used as a core material (1). A representative example of the water-soluble polymer is polyvinyl alcohol. The core material (1) can be produced as follows. That is, urea and water-soluble polymer powder or granules are mixed, and urea melts when heated. Therefore, when stirred, the melted urea dissolves water-soluble high molecules. Water can also be added at this time. Thereafter, it is cooled and crushed to an appropriate particle size. Or, after uniformly mixing the aqueous solution of urea and the aqueous solution of water-soluble ionomers, dry to a moisture content of 2 weight: "Below the degree and add it (please read the back-end notes before writing this page) This paper Standards for the use of B-homes «quasi (CNS) T4 specifications (210X297 g; ¢) 81. 7. 2ϋ, 00ϋίΚ (1Ι) 4 Central Ministry of Economic Affairs R-Consumer Cooperative Printing and Printing Co., Ltd. 205020 V. Description of invention (3 ) Crush. Compression molding, injection molding, etc. are used to shape the pulverized body thus obtained into a core material (1). At this time, molding shrinkage (mold shrinkage) is hardly caused. The molding conditions can be, for example, conditions at a temperature of 90 to 125¾ and a pressure of 200 Kg / i or more. The above-mentioned light-weight core material is used as an insert, and when injection molding of synthetic resin is performed around it, the injection molding main body (2) can be formed. Synthetic resins for these purposes started with the use of ABS resins, polysulfonates, nicole, and polyetherether copper forming resins (mostly thermoplastic resins and thermosetting resins), and some More than one kind of resin is blended as a polymer alloy user. At this time, it is better to mix the reinforcing resin with the appropriate amount of molding fabric, aromatic aldiamine braided fabric, boron fiber, boron fiber, titanium ore, whisker, etc. With short ore dimension, others can also be suitable to mix with the filler (filler), coloring agent, stabilizer, plasticizer or other additives. The injection molded product broadcasted has a core material (1) in the hollow portion of the injection molded body (2). The core material (1) can be easily eluted from normal temperature or even heated water, so the core material (1) can be removed from the hollow portion of the injection-molded body (2). The hollow portion of the ball head thus obtained, if necessary It can be filled with "Dong Zhi's Charge". For example, polyurethane can be poured into the hollow portion to make it highly foamed. The ball head can be polished or painted according to the requirements, and then the necessary parts and shaft can be installed to become the club. The golf club head of the present invention can be used for wood and wood No. 3 (This paper standard is applicable to China National Standard (CN'S) A 4 specifications (210 X 297 public goods) ------ ---: --- 1 ------------ installed ------. 玎 ------ line (please ^ read '; *'; contrary to it; ' .tt gray item and then fill out this page) 5 205020 Λ 6 Β6_ V. Description of invention (4) spoon), No. 4 wood (baffy), No. 5 wood (cleek) and other ball defenders. [Function] The method of the present invention is like using the prototype obtained by molding the composition of urea and water-soluble polymer as the main agent temporarily as a core material (1), the core material (1) and the conventional foaming system The lightweight core material is not the same, not only is it strong, but it will hardly cause molding shrinkage when the core material (1) is formed, so the injection molding body (2) can be injected as the core material of the insert (1) Under high pressure. Thus, the injection-molded body (2) can be thinned, and the volume of the hollow portion can be increased only by its component. In addition, the injection molding body (2) can freely form a uniform wall, and the design freedom of the club head is greater than that of the conventional ones. Furthermore, the manufacture and injection molding of the core material (1) are also easy to dissolve after the core material (1) is formed, and the manufacturing process is not complicated. [Examples] Next, the present invention will be further described in accordance with examples. The following "point J is the abbreviation of weight point. Example 1 Circle 1 pseudo shows an explanatory diagram of the manufacturing method of the present invention in a model. Mixing 90 minutes of urea powder and 5 minutes of polyvinyl alcohol powder, when heated to 135Ό, urea melts , Stir while keeping warm, dissolve the polyethylene yeast in the melted urea. Allow it to cool and solidify, and then crush it with a grinder. The obtained powder is supplied to the injection molding machine at a temperature of 120D and an injection pressure of 200 ~ 3001 (8/0 ^, binding temperature 20 ~ 80C, injection molding under the condition of forming process for 150 seconds, and obtain core material with fixed casting core pin (3) (1) ), These conditions are not as shown in Figure 1 (A). The size of the clothing paper is in accordance with the Chinese National Standard (CNS) A 4 specifications (210 X 297 mm) '6 -------------- -: ---------.---- install --------. 玎 ------ line (please read the precautions on the back before writing this page) Economy 2050 ^ 0 Λ 6 Β6__ printed by the Employee Consumer Cooperative of the Central Standards Bureau of the Ministry of Education 5. Description of the invention (5) Secondly, the core material with the fixed casting heart pin (3) is set as an insert in the injection molding machine, Will be mixed into the mine to maintain The ABS resin of the short iron is supplied to the injection molding machine. The resin temperature is 230¾, the injection force is 700h / ο »1, the mold temperature is 40t :, the injection molding is performed under the condition of 80 seconds to form the injection molding material. (2). This state is shown in (B) of circle 1. When the core material (1) part of the molded product obtained above is sprayed with warm water, as in κ Figure 1 (C), the core material (1 ) It is easy to dissolve from the injection molding unit (2), so the injection molding body (2) after the core material (1) is removed is coated with paint. The injection head of the head is formed by using a foamed core material made of ABS resin with a hollow inside, and the sulfonate fiber is mixed with the ABS resin to form the body. It is a big circle under the same weight. It is necessary to install the club head here Parts and handles become club products. In addition, foams such as polyurethane can be sprayed into the hollow of the injection molded body (2). [Effect of the invention] According to the method of the present invention, the Injection molding Ben (2) can be thinned and uniformed. • It can be made larger and larger than the conventional ball head, and the club head The degree of freedom of design becomes greater. Furthermore, the manufacturing process is not overly complicated, and a club head of a certain quality can be often manufactured, so that the optimal sticking point will not be deviated due to the difference in products. Therefore, according to The golf ball head made by the method of the present invention can meet the requirements of the new era in terms of performance, design and appearance. [Explanation of Garden Sheet] This paper scale is applicable to China National Standard (CNS) A4 specifications (210 X 297 public goods) 7 ------------------------ installed ---.--- ir ------- line ( Please read the precautions on the back before filling in this page) A 6 Β6 printed by the Employee Consumer Cooperative of the Central Standards Bureau of the Ministry of Economy V. Description of the invention (6) [Figure 1] An explanatory diagram showing the manufacturing method of the present invention in a model. [Description of symbols] (1) ...... Core material (2) ..... • Injection molding body (3) ... Small core pin for fixing. --------- 1-11 .------------ installed ----- ιι-order ------- line 1, (please read first- 4Notes on the back of this page will be written on this page) The paper printed by the Employee Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs is again applicable to the Chinese National Standard (CNS) A 4 specifications (210 X 297 mm)
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