200417389 玖、發明說明（1) 【發明所屬之技術領域】 本發明係關於一種製造方法，特別指一種具pu表層 籃球之籃球製造方法。 【先前技術】 5 PU材質由於具備如防水、耐磨且柔軟等特性，近年 來已逐漸應用於籃球之外表層，以增加籃球整體之彈性及 耐用性。 第一圖所示即為一習知具PU表層之籃球局部剖視示 意圖，其製程首先係將一橡膠製内胎層（bladder 10 layer)91内部充氣後，藉一纏紗機（圖未示）於内胎層91 表面形成一纏繞層（winding layer)92，以保持内胎層91 整體之形狀穩定性。而後將一橡膠層93切割為複數片體 ，貼合於纏繞層92表面後，置於一中胎模模具（圖未示） 加硫（vulcanize)形成一中胎，而後於中胎表面預先打粗 15 及上膠。而後將一配合橡膠層93形狀切割為複數片體且 邊緣經削薄之PU層94預先上膠，而後以完全手工方式逐 片貼附於中胎對應橡膠層93表面，最後再置入一外胎模 模具（圖未示）固定其形狀而獲得一籃球成品。 惟上述貼附PU層94之步驟由於須待中胎完成後始得 2〇 接續進行，故無法進一步精簡縮短製程。再者，由於pu 層94須精確貼附於橡膠層93圓弧表面對應處，故須藉人 工漸次為之，一般每球貼合時間約在2()分鐘左右，故耗 費之工時極為可觀。 【發明内容】 200417389 玖、發明說明（2) 因此，本發明之首一目的，即在提供一種可精簡製程 之籃球製造方法。 本發明之另一目的，在於提供一種可縮短工時之籃球 製造方法。 5 本發明之次一目的，在於提供一種可節省材料之籃球 製造方法。 於是，本發明籃球製造方法，包括下述步驟··提供_ 充氣後係呈球狀之内胎層；令内胎層充氣後於其外表面形 成一纏繞層，分別提供一橡膠層及一 PU層；將橡膠層及 10 PU層結合並分割為預定形狀之複數鑲皮；將該等鑲皮結 合於纏繞層外表面而共同形成一球體；及將該球體加熱硫 化。 【實施方式】 本發明之前述及其他技術内容、特點與功效，於以下 15 配合參考圖式之較佳實施例詳細說明中，將可清楚明白。 本發明籃球製造方法之較佳實施例，其主要實施步驟 係如第二圖之流程圖所示，而其獲得之籃球成品3則如第 八圖之剖視示意圖所示。 如第二圖中步驟11及第三圖之立體示意圖所示，提 20 供一中空而可於充氣後膨脹呈一球形之内胎層 (bladder)31，以產生該籃球成品3(示於第八圖）對内部氣 壓之主要抗力’並相對形成該球體主要外形。内胎層3 1 係以片狀材料經習知之擅疊（fold)、壓製（C〇mpress)及切 割程序而成，而其主要材料則以丁基合成橡膠（Syn^efic 200417389 玖、發明說明（3) butyl rubber)較佳，然亦可含少量天然橡膠。 再如步驟12所示，於⑽層31料處安裝—用以連 通内胎層31内部及外界大氣之習知氣閥311，以供該籃 球成品3充氣或泡氣之用。 5 ㈣如步驟13、14所示，將安裝氣閥311後之内胎 層31充氣，並令其加溫一預定時間使其硬化，本 實施例中加溫溫度約150QC，加溫時間則為5分鐘。 如步驟15所示，令内胎層31自上述加溫環境取出， 而藉任何適當之習知設備於内胎層31表面形成如第四圖 ίο所示之一纏繞層（winding layer)32，以於内胎層31充氣 時限制向外之過度膨脹，而增加内胎層31及籃球成品3 整體之形狀穩定性，並降低對内胎層31外部其他外層之 壓力。纏繞層32包含如尼龍（nylon)、聚醋（p〇lyester) 或其他單絲聚合束（monofilament p〇lymeric strand)， 15纏繞層32内面並經施加一層黏劑（圖未示），以強化與内 胎層31之結合強度。 於上述步驟11至15進行同時，如步驟μ及17所述 刀別長1供適當尺寸而皆呈片狀之一橡膠層33及一 PU層 34(不於第五圖），該橡膠層33材料以天然橡膠為佳，而 20该卯層34則具較習知製法所需之PU皮料較薄之厚度。 而後依序如步驟18及19所示，將橡膠層33及PU層 34、、、"合後’予以裁切成適當形狀之複數鑲片（panel)35， 其中鎮片35即如第五圖所例示。本實施例中橡膠層33 及PU層34係藉如橡膠石灰（jobber cement)等黏劑黏合 200417389 玖、發明說明（4) 可=機=式壓合、熱融合或其他任何適當結合方式亦 狀之邊绫广片35之尺寸形狀不盡一致，然皆具有圓狐 狀之邊緣外廓。 再如步驟20所示，藉將纏繞層32外表面及各鎮片 之橡膠層33内表面施加適當黏劑或其他方式，將各鑲 片35々結合於纏繞層32外表面，且即層％係位於最外層 如第/、圖所不之各鑲片35黏合於纏繞層32外表面狀態 ，所有鑲片35將大致共同包覆纏繞層32之外表面，且於 ίο 15 相鄰兩鑲片35間各形成-隨鑲片35輪廓而延伸f折之溝 槽 351。 如步驟21所示，將上述包括内胎層31、纏繞層32 橡膠層33及PU層34之一球體36,如第七圖所示置於一 適當模具4使其加熱硫化。本實施例中模具4為一習知籃 球外胎模，而包含兩各呈半圓球狀之半模41、42，當球 體36置於下側半模41後，上側半模42將與半模4ι共同 結合封閉，而於一加硫且加熱加壓之環境中經過一預定時 間’令球體36整體充分硫化，使其各層31至34之結合 更為緊密穩固。本實施例中上述加熱溫度及時間分別約 150°C及1〇分鐘，然非以此為限。 最後如步驟22、23及第八圖所示，將複數狹帶狀橡 膠條37藉適當黏劑結合於硫化後之球體36各鑲片35間 之溝槽351，使獲得之籃球成品3整體更具立體感。 藉由上述揭示之實施步驟，本發明較習知籃球製程具 下述顯著優點： 20 200417389 玖、發明說明（5) 、由於步驟11至15及步驟16及17，亦即内胎層 31纏繞層32及橡膠層33、pU| 34之結合可同時進行 故可精簡製程、縮短工時而降低成本，步驟u至15及 步驟16及Π亦可於不同單位或卫薇進行後再行組裝，故 5 具更高製造彈性。 一、PU層34無須如習知方式逐片以手工貼合於橡膠 層33外表面，故亦減少大量手工製作時間。 ^三、PU層34由於係先與橡膠層33結合後，再與内 曰31及纏繞層32結合並加熱硫化，故橡膠層33相對 1〇提供印層34 一襯墊作用，使PU層34所需厚度可較習知 製法明顯減少，而降低材料成本。 四、由於PU層34亦經硫化處理，故提高籃球成品3 表面耐磨度’且PU層34與橡膠層33間因經硫化處理， 使其結合更為緊密，而提高籃球成品3之使用穩定性及耐 15 用性。 准以上所述者，j堇為本發明之較佳實施例❿已，當不 $以此限定本發明實施之範圍，即大凡依本發明中請專利 耗圍及發明說明書内容所作之簡單等效變化與修飾，皆應 仍屬本發明專利涵蓋之範圍内。 20【圖式簡單說明】 第一圖為-習知具PU表層之籃球局部剖視示意圖； 第二圖為本發明籃球製造方法之較佳實施例主要實施 步驟流程圖； 第三圖為由該較佳實施例所獲得之一内月台層經安裝一 200417389 玖、發明說明（6) 氣閥後之立體示意圖； 第四圖為於第三圖中該内胎層表面形成一纏繞層後之 立體示意圖； 第五圖為由該較佳實施例所獲得之一鑲片之立體示意 5 圖，以顯示該鑲片係由一橡膠層及一 PU層所結合而成； 第六圖為由該較佳實施例所獲得之複數镶片結合於第 四圖之纏繞層表面後之一球體立體示意圖； 第七圖為第六圖之該球體置於一籃球外胎模進行加熱 硫化處理之剖視不意圖；及 10 帛人®為該較佳實施例所獲得之-藍球成品局部剖視 示意圖。 15 10 200417389 玖、發明說明（7) 【圖式之主要元件代表符號簡單說明】 3 籃球成品 4 模具 31 内胎層 41 半模 311 氣閥 42 半模 32 纏繞層 37 橡膠條 33 橡膠層 34 PU層 35 鑲片 351 溝槽 36 球體 11200417389 (1) [Explanation of invention] [Technical field to which the invention belongs] The present invention relates to a manufacturing method, and particularly to a method for manufacturing a basketball with a pu surface layer. [Previous Technology] 5 PU material has been gradually applied to the outer surface of basketball in recent years due to its characteristics such as waterproof, abrasion resistance and softness, in order to increase the overall flexibility and durability of basketball. The first picture shows a partial cross-sectional schematic diagram of a basketball with a PU surface layer. The process is first inflated inside a rubber layer 10 (bladder 10 layer) 91 and borrowing a yarn winding machine (not shown) A winding layer 92 is formed on the surface of the inner tube layer 91 to maintain the overall shape stability of the inner tube layer 91. Then, a rubber layer 93 is cut into a plurality of sheets, which are adhered to the surface of the winding layer 92, and then placed in a mid tire mold (not shown) to vulcanize to form a mid tire, and then hit the mid tire surface in advance. Coarse 15 and glued. Then, a PU layer 94 having a shape with a rubber layer 93 cut into a plurality of pieces and the edges of which have been thinned is pre-glued, and then it is completely manually attached to the surface of the corresponding rubber layer 93 of the middle tire piece by piece, and finally a tire is placed A mold (not shown) fixes its shape to obtain a finished basketball. However, the above-mentioned steps of attaching the PU layer 94 cannot be further streamlined or shortened because it must be performed continuously after the completion of the middle tire. In addition, since the pu layer 94 must be accurately attached to the corresponding surface of the arc surface of the rubber layer 93, it must be gradually applied by hand. Generally, the bonding time of each ball is about 2 () minutes, so the labor time is extremely considerable. . [Summary of the Invention] 200417389 (2) Therefore, the first object of the present invention is to provide a basketball manufacturing method that can simplify the manufacturing process. Another object of the present invention is to provide a basketball manufacturing method capable of shortening man-hours. 5 A second object of the present invention is to provide a method for manufacturing a basketball which can save material. Therefore, the basketball manufacturing method of the present invention includes the following steps: providing a spherical inner tube layer after inflation; inflating the inner tube layer to form a winding layer on its outer surface, and providing a rubber layer and a PU layer, respectively; The rubber layer and the 10 PU layer are combined and divided into a plurality of inserts of a predetermined shape; the inserts are combined with the outer surface of the winding layer to form a sphere together; and the sphere is heated and vulcanized. [Embodiment] The foregoing and other technical contents, features, and effects of the present invention will be clearly understood in the following detailed description of the preferred embodiments with reference to the drawings. In the preferred embodiment of the basketball manufacturing method of the present invention, the main implementation steps are shown in the flowchart of the second figure, and the finished basketball product 3 obtained is shown in the cross-sectional schematic diagram of the eighth figure. As shown in the three-dimensional schematic diagrams of steps 11 and 3 in the second figure, 20 is provided with a hollow inner tube 31 that can expand into a spherical shape after inflation to produce the basketball finished product 3 (shown in the eighth (Figure) The main resistance to internal air pressure 'and the relative shape of the sphere. The inner tube layer 31 is made of a sheet material through a known fold, compression and cutting process, and its main material is butyl synthetic rubber (Syn ^ efic 200417389 玖, invention description ( 3) butyl rubber) is preferred, but it may also contain a small amount of natural rubber. Then, as shown in step 12, install the conventional air valve 311 on the inner layer 31-to connect the inside of the inner tube layer 31 and the outside atmosphere, for the inflation or bubble of the finished basketball product 3. 5 ㈣ As shown in steps 13 and 14, the inner tube layer 31 after the air valve 311 is installed is inflated and allowed to warm up for a predetermined time to harden. In this embodiment, the heating temperature is about 150 QC, and the heating time is 5 minute. As shown in step 15, the inner tube layer 31 is taken out from the above-mentioned warming environment, and a winding layer 32 as shown in the fourth figure is formed on the surface of the inner tube layer 31 by any suitable conventional equipment, so that When the inner tube layer 31 is inflated, excessive outward expansion is restricted, and the overall shape stability of the inner tube layer 31 and the finished basketball product 3 is increased, and the pressure on the other outer layers outside the inner tube layer 31 is reduced. The winding layer 32 includes, for example, nylon, polyester or other monofilament polymer strands. 15 The inner surface of the winding layer 32 is applied with a layer of adhesive (not shown) to strengthen it. Bonding strength with the inner tube layer 31. At the same time as the above steps 11 to 15, a rubber layer 33 and a PU layer 34 (not shown in the fifth figure) of a rubber layer 33 and a PU layer 34 (not shown in the fifth figure) of appropriate length and blade shape as described in steps μ and 17 are provided. The material is preferably natural rubber, while the 20 layer 34 has a thinner thickness than the PU leather required by conventional manufacturing methods. Then, as shown in steps 18 and 19, the rubber layer 33 and the PU layer 34 are cut into a plurality of panels 35 of an appropriate shape. Illustrated by the figure. In this embodiment, the rubber layer 33 and the PU layer 34 are bonded by an adhesive such as rubber cement (jobber cement) 200417389 玖, description of the invention (4) can = machine = type compression bonding, thermal fusion or any other suitable bonding method The size and shape of the side edge wide piece 35 are not consistent, but all have round fox-shaped edge outlines. Then, as shown in step 20, by applying an appropriate adhesive or other methods to the outer surface of the winding layer 32 and the inner surface of the rubber layer 33 of each town sheet, each panel 35々 is bonded to the outer surface of the winding layer 32, that is, the layer%. Each panel 35 located on the outermost layer is not adhered to the outer surface of the winding layer 32, as shown in the figure. All the panels 35 will generally cover the outer surface of the winding layer 32, and two adjacent panels at 15 Thirty-five grooves 351 are formed, each extending with the contour of the panel 35. As shown in step 21, the sphere 36 including the inner tube layer 31, the winding layer 32, the rubber layer 33, and the PU layer 34 is placed in a suitable mold 4 as shown in FIG. In this embodiment, the mold 4 is a conventional basketball tire mold, and includes two semi-spherical mold halves 41 and 42. When the ball 36 is placed on the lower mold half 41, the upper mold half 42 and the mold half 4 The joints are sealed together, and in a sulfurized, heated and pressurized environment, the ball 36 is fully vulcanized after a predetermined time, so that the bonding of the layers 31 to 34 is more tight and stable. In this embodiment, the above heating temperature and time are about 150 ° C and 10 minutes, respectively, but it is not limited thereto. Finally, as shown in steps 22, 23, and the eighth figure, the plurality of narrow strip rubber strips 37 are bonded to the grooves 351 between the panels 35 of the vulcanized ball 36 by an appropriate adhesive, so that the obtained basketball finished product 3 as a whole is more complete. With three-dimensional sense. Through the implementation steps disclosed above, the present invention has the following significant advantages over the conventional basketball process: 20 200417389 玖, invention description (5), because of steps 11 to 15 and steps 16 and 17, that is, the inner tube layer 31 winding layer 32 The combination of the rubber layer 33 and pU | 34 can be performed simultaneously, which can streamline the manufacturing process, reduce man-hours and reduce costs. Steps u to 15 and steps 16 and Π can also be assembled in different units or Wei Wei, so 5 With higher manufacturing flexibility. 1. The PU layer 34 does not need to be manually adhered to the outer surface of the rubber layer 33 piece by piece in a conventional manner, so it also reduces a lot of hand-made time. ^ Third, because the PU layer 34 is first combined with the rubber layer 33, and then combined with the inner layer 31 and the winding layer 32 and vulcanized by heating, the rubber layer 33 provides a print layer 34 as a cushion relative to 10, and the PU layer 34 The required thickness can be significantly reduced compared to conventional manufacturing methods, thereby reducing material costs. Fourth, because the PU layer 34 is also vulcanized, the surface abrasion resistance of the finished basketball product 3 is improved, and the PU layer 34 and the rubber layer 33 are cured by vulcanization, which makes the combination more tight, and improves the stability of the use of the finished basketball product 3. Performance and resistance to 15 uses. According to the above, J is a preferred embodiment of the present invention. If it is not used to limit the scope of the present invention, that is, the simple equivalent of the patent scope and the description of the invention Changes and modifications should still fall within the scope of the invention patent. 20 [Brief description of the drawings] The first picture is a partial cross-sectional schematic diagram of a conventional basketball with a PU surface layer; the second picture is a flowchart of the main implementation steps of a preferred embodiment of the basketball manufacturing method of the present invention; the third picture is from this A three-dimensional schematic diagram of the inner platform layer obtained by the preferred embodiment after installation of a 200417389 玖, description of the invention (6) the air valve; the fourth figure is the three-dimensional figure after a winding layer is formed on the surface of the inner tube layer in the third figure The fifth diagram is a three-dimensional schematic diagram of a panel obtained from the preferred embodiment, to show that the panel is a combination of a rubber layer and a PU layer; the sixth diagram is from the comparison A three-dimensional schematic diagram of a sphere after the plurality of panels obtained in the preferred embodiment are combined with the surface of the winding layer in the fourth figure; the seventh figure is a sectional view of the sixth figure where the sphere is placed in a basketball tire mold for heating and vulcanization treatment; ; And 10 帛 人 ® is a partial cross-sectional view of the finished blue ball product obtained in the preferred embodiment. 15 10 200417389 发明 Description of the invention (7) [Simplified description of the main elements of the diagram] 3 Basketball finished product 4 Mould 31 Tube layer 41 Half mold 311 Air valve 42 Half mold 32 Winding layer 37 Rubber strip 33 Rubber layer 34 PU layer 35 panel 351 groove 36 sphere 11