TWI685413B - Multilayered golf ball having whiskers and manufacturing method thereof - Google Patents
Multilayered golf ball having whiskers and manufacturing method thereof Download PDFInfo
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- TWI685413B TWI685413B TW108104826A TW108104826A TWI685413B TW I685413 B TWI685413 B TW I685413B TW 108104826 A TW108104826 A TW 108104826A TW 108104826 A TW108104826 A TW 108104826A TW I685413 B TWI685413 B TW I685413B
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
- A63B37/0038—Intermediate layers, e.g. inner cover, outer core, mantle
- A63B37/0039—Intermediate layers, e.g. inner cover, outer core, mantle characterised by the material
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
- A63B37/0023—Covers
- A63B37/0024—Materials other than ionomers or polyurethane
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
- A63B37/0023—Covers
- A63B37/0029—Physical properties
- A63B37/0037—Flexural modulus; Bending stiffness
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
- A63B37/0038—Intermediate layers, e.g. inner cover, outer core, mantle
- A63B37/004—Physical properties
- A63B37/0049—Flexural modulus; Bending stiffness
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
- A63B37/005—Cores
- A63B37/006—Physical properties
- A63B37/0061—Coefficient of restitution
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B45/00—Apparatus or methods for manufacturing balls
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2209/00—Characteristics of used materials
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
- A63B37/005—Cores
- A63B37/006—Physical properties
- A63B37/0064—Diameter
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
- A63B37/007—Characteristics of the ball as a whole
- A63B37/0072—Characteristics of the ball as a whole with a specified number of layers
- A63B37/0075—Three piece balls, i.e. cover, intermediate layer and core
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
- A63B37/007—Characteristics of the ball as a whole
- A63B37/0072—Characteristics of the ball as a whole with a specified number of layers
- A63B37/0076—Multi-piece balls, i.e. having two or more intermediate layers
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Abstract
Description
本發明涉及一種多層高爾夫球及其製造方法,特別是涉及一種內部具有晶鬚的多層高爾夫球及其製造方法。 The invention relates to a multi-layer golf ball and a manufacturing method thereof, in particular to a multi-layer golf ball with whiskers inside and a manufacturing method thereof.
隨著人們生活水準的提高及對戶外休閒生活的重視,有越來越多人喜愛上高爾夫球運動,這些人可能來自各個行各業或各個年齡層的男性或女性。也就是說,高爾夫球運動可以讓不同行業、不同年齡層和不同性別的人同場競技,並進行交流,而這正是這項運動的魅力所在。 With the improvement of people's living standards and the emphasis on outdoor leisure life, more and more people love golf, and these people may come from men or women of all walks of life or all ages. In other words, golf can allow people from different industries, different ages and different genders to compete and communicate in the same field, and this is the charm of this sport.
在高爾夫球的比賽中,選手須持續將高爾夫球推進,推進過程中球的飛行距離與近距離擊球的控制性,經常成為比賽的決勝關鍵。儘管在比賽中球員的技術通常是決定勝負的關鍵,但是高爾夫球本身的特性也具有一定程度的影響力。以多層高爾夫球來說,將不同材料的層結合在一起,可以產生一些額外的特性,例如加快球的初速度、增加或減少球的旋轉量等,讓選手更容易控制所擊出球的飛行距離和軌跡。 In the game of golf, players must continue to push the golf ball. During the process of propulsion, the flying distance of the ball and the controllability of hitting at close range often become the key to winning the game. Although the skill of the player is usually the key to winning or losing in the game, the characteristics of the golf ball also have a certain degree of influence. For a multi-layer golf ball, combining layers of different materials can produce some additional features, such as accelerating the initial speed of the ball, increasing or decreasing the amount of rotation of the ball, etc., so that the player can more easily control the flight of the shot Distance and trajectory.
因此,本發明人遂以其多年從事相關領域的設計及製造經驗,並積極地研究如何能增加高爾夫球的移動距離,並同時改善球的可打性,在各方條件的審慎考量下終於開發出本發明。 Therefore, the inventors have been engaged in design and manufacturing experience in related fields for many years, and actively studied how to increase the travel distance of golf balls, and at the same time improve the playability of the ball, finally developed under the careful consideration of various conditions出发明。 The present invention.
本發明所要解決的技術問題在於,針對現有技術的不足提供 一種同時符合職業選手與業餘選手的使用需求的內部具有晶鬚的多層高爾夫球及其製造方法。 The technical problem to be solved by the present invention is to provide A multi-layer golf ball with whiskers inside and meeting the demands of professional players and amateur players, and its manufacturing method.
為了解決上述的技術問題,本發明所採用的其中一技術方案是:一種內部具有晶鬚的多層高爾夫球,其包括一球心、一包覆所述球心的外覆蓋層以及至少一設置於所述球心與所述外覆蓋層之間的內覆蓋層,其特徵在於,所述外覆蓋層的彎曲模數介於20MPa至600MPa之間,所述內覆蓋層的彎曲模數介於20MPa至400MPa之間,所述內覆蓋層包含一由多個晶鬚所構成的三維網絡結構,其中多個所述晶鬚佔所述內覆蓋層總重量的1%至5%。 In order to solve the above technical problems, one of the technical solutions adopted by the present invention is: a multilayer golf ball with whiskers inside, which includes a core, an outer cover layer covering the core and at least one The inner covering layer between the spherical core and the outer covering layer is characterized in that the bending modulus of the outer covering layer is between 20MPa and 600MPa, and the bending modulus of the inner covering layer is between 20MPa Between 400MPa and 400MPa, the inner cover layer includes a three-dimensional network structure composed of a plurality of whiskers, wherein the plurality of whiskers account for 1% to 5% of the total weight of the inner cover layer.
為了解決上述的技術問題,本發明所採用的另外一技術方案是:一種內部具有晶鬚的多層高爾夫球的製造方法,其包括:成型一球心;成型至少一內覆蓋層以包覆所述球心,其中所述內覆蓋層的彎曲模數介於20MPa至400MPa之間,所述內覆蓋層包含一由多個晶鬚所構成的三維網絡結構,且多個所述晶鬚佔所述內覆蓋層總重量的1%至5%;以及成型一外覆蓋層以包覆所述內覆蓋層,其中所述外覆蓋層的彎曲模數介於20MPa至600MPa之間。 In order to solve the above technical problems, another technical solution adopted by the present invention is: a method for manufacturing a multi-layer golf ball with whiskers inside, which includes: forming a core; forming at least an inner cover layer to cover the Spherical core, wherein the bending modulus of the inner cover layer is between 20MPa and 400MPa, the inner cover layer includes a three-dimensional network structure composed of a plurality of whiskers, and a plurality of the whiskers occupy the 1% to 5% of the total weight of the inner cover layer; and forming an outer cover layer to cover the inner cover layer, wherein the bending modulus of the outer cover layer is between 20 MPa and 600 MPa.
在本發明的一實施例中,多個所述晶鬚佔所述內覆蓋層總重量的2.5%至3%。 In an embodiment of the invention, the plurality of whiskers account for 2.5% to 3% of the total weight of the inner cover layer.
在本發明的一實施例中,多個晶鬚為氧化鋅晶鬚。 In an embodiment of the invention, the plurality of whiskers are zinc oxide whiskers.
在本發明的一實施例中,所述外覆蓋層的材料為基於金屬陽離子的低酸離聚物樹脂,所述內覆蓋層的材料為高度中和的酸性聚合物樹脂。 In an embodiment of the present invention, the material of the outer cover layer is a low acid ionomer resin based on metal cations, and the material of the inner cover layer is a highly neutralized acid polymer resin.
在本發明的一實施例中,所述外覆蓋層的彎曲模數介於29.6MPa至489MPA之間,所述內覆蓋層的彎曲模數介於44.8MPA至220MPA之間。 In an embodiment of the present invention, the bending modulus of the outer cover layer is between 29.6 MPa and 489 MPA, and the bending modulus of the inner cover layer is between 44.8 MPA and 220 MPA.
在本發明的一實施例中,所述球心的回彈係數(COR)介於0.65至0.85,(125ft/s)平均揮桿速度,選手揮桿速度(175ft/s)之間。 In an embodiment of the present invention, the rebound coefficient (COR) of the core is between 0.65 and 0.85, (125 ft/s) average swing speed, and the player's swing speed (175 ft/s).
在本發明的一實施例,成型所述內覆蓋層的步驟包括:將多 個所述晶鬚與一成型樹脂按1:9的重量比混合,以形成一第一樹脂組合物;對所述第一樹脂組合物進行造粒,以得到多個樹脂母粒;將多個所述樹脂母粒與另一成型樹脂按3:7的重量比混合,以形成一第二樹脂組合物;以及使用所述第二樹脂組合物作為原料進行射出成型。 In an embodiment of the invention, the step of forming the inner cover layer includes: The whiskers and a molding resin are mixed in a weight ratio of 1:9 to form a first resin composition; granulating the first resin composition to obtain a plurality of resin mother particles; The resin masterbatch and another molding resin are mixed in a weight ratio of 3:7 to form a second resin composition; and injection molding is performed using the second resin composition as a raw material.
本發明的其中一有益效果在於,本發明所提供的內部具有晶鬚的多層高爾夫球及其製造方法,其能通過“內覆蓋層包含由晶鬚所構成的三維網絡結構,其中晶鬚佔內覆蓋層總重量的1-5%”以及“內、外覆蓋層分別具有特定的彎曲模數”的技術方案,以增加擊球距離(包括飛行距離及滾動距離),同時兼顧球的後旋、打擊手感和耐久性。 One of the beneficial effects of the present invention is that the multilayer golf ball with whiskers provided therein and the manufacturing method thereof can pass the “inner cover layer includes a three-dimensional network structure composed of whiskers, in which the whiskers occupy the inner "1-5% of the total weight of the cover layer" and the "inner and outer cover layers each have a specific bending modulus" technical solution to increase the hitting distance (including the flying distance and rolling distance) while taking into account the backspin, Combat feel and durability.
為使能更進一步瞭解本發明的特徵及技術內容,請參閱以下有關本發明的詳細說明與圖式,然而所提供的圖式僅用於提供參考與說明,並非用來對本發明加以限制。 In order to further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are for reference and explanation only, and are not intended to limit the present invention.
G‧‧‧內部具有晶鬚的多層高爾夫球 G‧‧‧Multilayer golf ball with whiskers inside
1‧‧‧球心 1‧‧‧ball heart
1a‧‧‧內球心 1a‧‧‧Inner Sphere
1b‧‧‧外球心 1b‧‧‧Outer heart
2‧‧‧內覆蓋層 2‧‧‧Inner cover
21‧‧‧三維網絡結構 21‧‧‧Three-dimensional network structure
W‧‧‧晶鬚 W‧‧‧whisker
3‧‧‧外覆蓋層 3‧‧‧Outer cover
31‧‧‧球窩 31‧‧‧ball socket
圖1為本發明的內部具有晶鬚的多層高爾夫球的製造方法的流程圖。 FIG. 1 is a flowchart of a method for manufacturing a multilayer golf ball with whiskers in the present invention.
圖2為本發明第一實施例的內部具有晶鬚的多層高爾夫球的局部立體示意圖。 2 is a partial schematic perspective view of a multilayer golf ball with whiskers inside according to a first embodiment of the present invention.
圖3為本發明第一實施例的內部具有晶鬚的多層高爾夫球的剖面示意圖。 3 is a schematic cross-sectional view of a multilayer golf ball with whiskers inside according to a first embodiment of the present invention.
圖4為圖3中IV部分的局部立體示意圖。 FIG. 4 is a partial schematic perspective view of part IV in FIG. 3.
圖5為本發明第二實施例的內部具有晶鬚的多層高爾夫球的局部立體示意圖。 5 is a partial schematic perspective view of a multilayer golf ball with whiskers inside according to a second embodiment of the present invention.
圖6為本發明第二實施例的內部具有晶鬚的多層高爾夫球的剖面示意圖。 6 is a schematic cross-sectional view of a multilayer golf ball with whiskers inside according to a second embodiment of the present invention.
眾所周知,高爾夫球的性能會受到其中的層狀結構和材料的 影響,因此,本發明提供一種高爾夫球的製造方法,其可以製造具有任何適合層數的高爾夫球(如三層或三層以上的多層球),並且,所製成的多層高爾夫球可以增加擊球距離(包括飛行距離及滾動距離),而不致犧牲球的後旋、打擊手感和耐久性。 As we all know, the performance of the golf ball will be affected by the layered structure and material Therefore, the present invention provides a method for manufacturing a golf ball, which can produce a golf ball having any suitable number of layers (such as a three-layer or three-layer multi-layer ball), and the resulting multi-layer golf ball can increase the impact Ball distance (including flying distance and rolling distance), without sacrificing the spin of the ball, hitting feel and durability.
以下是通過特定的具體實施例來說明本發明所公開有關“內部具有晶鬚的多層高爾夫球及其製造方法”的實施方式,本領域技術人員可由本說明書所公開的內容瞭解本發明的優點與效果。本發明可通過其他不同的具體實施例加以施行或應用,本說明書中的各項細節也可基於不同觀點與應用,在不悖離本發明的構思下進行各種修改與變更。另外,本發明的附圖僅為簡單示意說明,並非依實際尺寸的描繪,事先聲明。以下的實施方式將進一步詳細說明本發明的相關技術內容,但所公開的內容並非用以限制本發明的保護範圍。 The following is a specific specific example to illustrate the implementation of the "multilayer golf ball with whiskers inside and its manufacturing method" disclosed by the present invention. Those skilled in the art can understand the advantages and advantages of the present invention from the content disclosed in this specification. effect. The present invention can be implemented or applied through other different specific embodiments. Various details in this specification can also be based on different viewpoints and applications, and various modifications and changes can be made without departing from the concept of the present invention. In addition, the drawings of the present invention are merely schematic illustrations, and are not drawn according to actual sizes, and are declared in advance. The following embodiments will further describe the related technical content of the present invention, but the disclosed content is not intended to limit the protection scope of the present invention.
應當可以理解的是,雖然本文中可能會使用到“第一”、“第二”、“第三”等術語來描述各種元件或者信號,但這些元件或者信號不應受這些術語的限制。這些術語主要是用以區分一元件與另一元件,或者一信號與另一信號。另外,本文中所使用的術語“或”,應視實際情況可能包括相關聯的列出項目中的任一個或者多個的組合。 It should be understood that although terms such as “first”, “second”, and “third” may be used herein to describe various elements or signals, these elements or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" as used herein may include any combination of any one or more of the associated listed items, depending on the actual situation.
[第一實施例] [First embodiment]
請參閱圖1,本發明第一實施例提供一種內部具有晶鬚的多層高爾夫球及其製造方法,其首先執行步驟S100,成型一球心;然後,執行步驟S102,成型至少一內覆蓋層以包覆球心;最後,執行步驟S104,成型一外覆蓋層以包覆內覆蓋層。 Referring to FIG. 1, the first embodiment of the present invention provides a multilayer golf ball with whiskers inside and a manufacturing method thereof. It first performs step S100 to form a core; then, performs step S102 to form at least one inner cover layer to Cover the core; finally, perform step S104 to form an outer cover layer to cover the inner cover layer.
請配合圖2至圖4所示,在步驟S100中,球心1可以用本技術領域中任意公知的方法來製成,例如注射成型。球心1的直徑可介於1.40英寸至1.64英寸之間。進一步來說,可將球心1的材
料注入球模(圖中未顯示)中,並在適當溫度下將之加熱成型,成型後將球心1從球模中取出進行冷卻,使其形狀得以保持。
Please refer to FIG. 2 to FIG. 4. In step S100, the
在本實施例中,球心1的材料主要為天然或合成橡膠或者含有天然或合成橡膠的材料(下稱橡膠材料),橡膠材料可佔球心1總重量的50wt%至70wt%。並且,可通過選擇適當的橡膠材料(如聚丁二烯橡膠)使球心1具有所需的特性,例如將球心1的回彈係數(COR)控制在0.65至0.85之間,以改善擊球的初速度,從而增加高爾夫球的飛行距離。在其他實施例中,球心1的材料也可為熱塑性材料,例如離聚物樹脂、聚醯胺樹脂、聚酯樹脂、聚氨酯樹脂或其等的組合。
In this embodiment, the material of the
根據實際需要,球心1可包含添加物,添加物可使用交聯劑及填充物,但不受限於此。交聯劑的具體例包括丙烯酸鋅、丙烯酸鎂等,填充物的具體例包括氧化鋅、硫酸鋇、高比重的金屬粉末(如鎢粉)等。
According to actual needs, the
在步驟S102中,內覆蓋層2可以用本技術領域中任意公知的方法來製成,例如射出成型。內覆蓋層2的厚度可介於0.01英吋至0.6英吋之間。在其他實施例中,也可以通過壓模(圖中未顯示)將內覆蓋層2的材料形成兩個圍繞球心1的半球形結構(圖中未顯示),並在適當溫度下使兩個半球形結構發生熔融後,流動並結合在一起而形成完整的內覆蓋層2。
In step S102, the
在本實施例中,內覆蓋層2的組成可包含高度中和的酸性聚合物樹脂及多個晶鬚W(whiskers),高度中和的酸性聚合物樹脂可佔內覆蓋層2總重量的95%至99%,晶鬚W可佔內覆蓋層2總重量的1wt%至5wt%,較佳介於2.5wt%至3wt%,更佳介於2.8wt%至3wt%。其中晶鬚W可以具有相同或不同的不規則形狀,晶鬚W的外徑可介於1微米至50微米之間,晶鬚W的長徑比(aspect ratio)可介於5至1000之間。值得注意的是,內覆蓋層2的彎曲模數(Flexural Modulus)介於20MPa至400MPa之間,較佳介於44.8
MPa至220MPa之間。
In this embodiment, the composition of the
高度中和的酸性聚合物樹脂可使用由杜邦公司(E.I.Dupont de Nemours and Company)生產的HPF樹脂,HPF樹脂的具體例包括HPF 1000、HPF 2000、HPF AD1035、HPF AD1043、HPF AD1172等。晶鬚W可使用四針狀的氧化鋅晶鬚。然而,本發明不以上述所舉的例子為限。在其他實施例中,內覆蓋層2所包括的晶鬚W也可使用其他氧化物晶鬚、碳化物晶鬚、氮化物晶鬚、硼化物晶鬚、金屬晶鬚、無機鹽類晶鬚或其等的組合。
As the highly neutralized acidic polymer resin, HPF resin produced by E.I. Dupont de Nemours and Company can be used. Specific examples of the HPF resin include HPF 1000, HPF 2000, HPF AD1035, HPF AD1043, HPF AD1172, and the like. For the whiskers W, four needle-shaped zinc oxide whiskers can be used. However, the invention is not limited to the examples given above. In other embodiments, the whiskers W included in the
根據實際需要,可使用鎂、鈉、鋅或鉀等陽離子源來將酸性聚合物中和至80%或更高。內覆蓋層2可包含添加物,添加物可使用熔體流動改性劑及著色劑(如白色色料),但不受限於此。熔體流動改性劑的具體例包括脂肪酸及其鹽、聚醯胺、聚酯、聚丙烯酸酯、聚氨酯、聚醚、聚脲、多元醇等。
According to actual needs, a cation source such as magnesium, sodium, zinc, or potassium can be used to neutralize the acidic polymer to 80% or more. The
在本實施例中,內覆蓋層2所包含的高度中和的酸性聚合物樹脂可以用基於金屬陽離子的低酸離聚物樹脂可來取代,基於金屬陽離子的低酸離聚物樹脂可使用由杜邦公司(E.I.Dupont de Nemours and Company)生產的沙林樹脂(Surlyn®),沙林樹脂的具體例包括Surlyn 8150、Surlyn 8320、Surlyn 8940、Surlyn 8945、Surlyn 9120、Surlyn 9150、Surlyn 9320W、Surlyn 9910、Surlyn 9945、Surlyn 9950、Surlyn AD1022等。
In this embodiment, the highly neutralized acidic polymer resin contained in the
值得說明的是,為使晶鬚W在內覆蓋層2中均勻分散,內覆蓋層2的材料是採用下列步驟來製備。首先,將晶鬚W與成型樹脂(高度中和的酸性聚合物樹脂或基於金屬陽離子的低酸離聚物樹脂)按1:9的重量比混合,以形成第一樹脂組合物;接著,對第一樹脂組合物進行造粒,以得到多個樹脂母粒;然後,將樹脂母粒與另一成型樹脂(高度中和的酸性聚合物樹脂)按3:7的重量比混合,以形成第二樹脂組合物;最後,使用第二樹脂組合物作為原料進行壓模成型,亦即將基於第二樹脂組合物的原料射出至壓模
中。
It is worth noting that, in order to evenly disperse the whiskers W in the
再者,如圖4所示,分散在內覆蓋層2中之晶鬚W可以交織成三維網絡結構21,而在三維網絡結構21的存在下,可以提升高爾夫球的綜合性能。例如,內覆蓋層2可以和球心1產生協同作用,以達到增加擊球距離(包括飛行距離及滾動距離)的功效,並且,內覆蓋層2可以和外覆蓋層3產生協同作用,以達到增加球的後旋量、提升擊球手感及增加耐久性等功效。
Furthermore, as shown in FIG. 4, the whiskers W dispersed in the
在步驟S104中,外覆蓋層3可以用本技術領域中任意公知的方法來製成,例如壓模成型。外覆蓋層3的厚度可介於0.01英吋至0.2英吋之間。進一步來說,可通過壓模(圖中未顯示)將外覆蓋層3的材料形成兩個圍繞球心1的半球形結構(圖中未顯示),並可在50℃至200℃之溫度下將兩個半球形結構融合在一起,而形成完整的外覆蓋層3。
In step S104, the outer cover layer 3 can be formed by any method known in the art, such as compression molding. The thickness of the outer cover layer 3 may be between 0.01 inches and 0.2 inches. Further, the material of the outer cover layer 3 can be formed into two hemispherical structures (not shown in the figure) around the
在本實施例中,外覆蓋層3的主料可為基於金屬陽離子的低酸離聚物樹脂或聚氨酯(polyurethane),主料可佔外覆蓋層3總重量的80%至100%。基於金屬陽離子的低酸離聚物樹脂可使用由杜邦公司(E.I.Dupont de Nemours and Company)生產的沙林樹脂(Surlyn®),沙林樹脂的具體例包括Surlyn 8150、Surlyn 8320、Surlyn 8940、Surlyn 8945、Surlyn 9120、Surlyn 9150、Surlyn 9320W、Surlyn 9910、Surlyn 9945、Surlyn 9950、Surlyn AD1022等。值得注意的是,外覆蓋層3的彎曲模數介於20MPa至600MPa之間,較佳介於29.6MPa至489MPa之間。 In this embodiment, the main material of the outer cover layer 3 may be a low acid ionomer resin or polyurethane based on metal cations, and the main material may account for 80% to 100% of the total weight of the outer cover layer 3. As the low acid ionomer resin based on metal cation, Sarin resin (Surlyn ® ) produced by DuPont (EIDupont de Nemours and Company) can be used. Specific examples of the salin resin include Surlyn 8150, Surlyn 8320, Surlyn 8940, Surlyn 8945 , Surlyn 9120, Surlyn 9150, Surlyn 9320W, Surlyn 9910, Surlyn 9945, Surlyn 9950, Surlyn AD1022 and so on. It is worth noting that the bending modulus of the outer cover layer 3 is between 20 MPa and 600 MPa, preferably between 29.6 MPa and 489 MPa.
根據實際需要,外覆蓋層3可包含一或多種添加物,以賦予高爾夫球所需的特性,例如美觀性、實用性和耐用性。添加物的具體例包括:著色劑、消光劑、紫外線吸收劑、抗氧化劑、硬化劑、改性劑及填料。 According to actual needs, the outer cover layer 3 may contain one or more additives to impart desired characteristics of the golf ball, such as aesthetics, practicality, and durability. Specific examples of additives include colorants, matting agents, ultraviolet absorbers, antioxidants, hardeners, modifiers, and fillers.
當上述步驟完成之後,即製成一種內部具有晶鬚的多層高爾夫球G,其包括一球心1、一包覆球心1的外覆蓋層3及至少一設
置於球心1與外覆蓋層3之間的內覆蓋層2,其中內覆蓋層2包含一由多個晶鬚W所構成的三維網絡結構21。
After the above steps are completed, a multilayer golf ball G with whiskers inside is formed, which includes a
儘管在圖2及圖3中僅顯示內部具有晶鬚的多層高爾夫球G包括一層內覆蓋層2,但是根據實際需要,步驟S102可以被重複執行二次或二次以上,以形成多層位於球心1與外覆蓋層3之間的內覆蓋層2。例如,對於三層結構的高爾夫球來說,只需要一層內覆蓋層2;對於四層結構的高爾夫球來說,則需要二層內覆蓋層2。
Although FIG. 2 and FIG. 3 only show that the multilayer golf ball G with whiskers inside includes an
請複參閱圖2及圖3,為了改善高爾夫球的空氣動力學特性,外覆蓋層3的表面上可具有多個球窩31(Dimple)。球窩31可具有本領域中公知的任何形狀(如半球狀),球窩31的數量可介於200至500,較佳介於250至400。在不影響本發明之預期效果的前提下,可在外覆蓋層3的表面上形成本領域中公知的任意類型的塗層,例如保護層、顏色層、消光層等。
Please refer to FIG. 2 and FIG. 3 again, in order to improve the aerodynamic characteristics of the golf ball, a plurality of ball sockets 31 (Dimple) may be provided on the surface of the outer cover 3. The
[第二實施例] [Second Embodiment]
請參閱圖1,並配合圖5及圖6,本發明第二實施例提供一種內部具有晶鬚的多層高爾夫球及其製造方法,其首先執行步驟S100,成型一球心;然後,執行步驟S102,成型至少一內覆蓋層以包覆球心;最後,執行步驟S104,成型一外覆蓋層以包覆內覆蓋層。 Please refer to FIG. 1, and in conjunction with FIGS. 5 and 6, the second embodiment of the present invention provides a multilayer golf ball with whiskers inside and a manufacturing method thereof. It first performs step S100 to form a core; then, performs step S102 At least one inner cover layer is formed to cover the core; finally, step S104 is executed to form an outer cover layer to cover the inner cover layer.
本實施例與第一實施例的主要差異在於:在步驟S100中,是先形成一內球心1a,再形成一包覆內球心1a的外球心1b。內球心1a與外球心1b可以用本技術領域中任意公知的方法來製成,例如內球心1a是用注射成型來製成,且外球心1b是用壓模成型來製成,其等的技術細結可參考第一實施例所述,故於此不再多加贅述。
The main difference between this embodiment and the first embodiment is that in step S100, an inner spherical core 1a is formed first, and then an outer
在本實施例中,內球心1a與外球心1b的材料主要為天然或
合成橡膠或者含有天然或合成橡膠的材料,但不受限於此。內球心1a與外球心1b可以具有不同的特性,例如內球心1a的硬度(shore hardness)小於外球心1b的硬度,以減少開球時的後旋,並增加鐵桿擊球時的後旋。
In this embodiment, the materials of the inner core 1a and the
[評價項目] [Evaluation item]
使用6號鐵桿及開球桿(TaylorMade jetspeed),在相同測試條件下(如環境條件、揮桿速度和力道等),以110mph之揮桿速度(Club speed)分別打擊實驗例與對照例的高爾夫球數次,並記錄球的飛行距離、滾動距離及後旋量,結果如表1至表2所示。 Using the No. 6 iron and the tee (TaylorMade jetspeed), under the same test conditions (such as environmental conditions, swing speed and force, etc.), the golf balls of the experimental and control examples were hit with a club speed of 110 mph. Ball several times, and record the ball's flying distance, rolling distance and spin amount, the results are shown in Table 1 to Table 2.
另外,取實驗例與對照例的高爾夫球各12顆,使用砲擊測試機(ADC COR machine developed by Automated Design Corporation),以175ft/s之速度反復將球射出以撞擊金屬鋼板,直到球破裂為止,記錄前6顆被撞破的球的撞擊次數,結果如表3所示。 In addition, taking 12 golf balls each of the experimental example and the control example, using a shell tester (ADC COR machine developed by Automated Design Corporation), repeatedly ejecting the ball at a speed of 175 ft/s to hit the metal steel plate until the ball breaks, Record the impact times of the first 6 broken balls, the results are shown in Table 3.
實驗例與對照例(Control)的高爾夫球均為三層結構的高爾夫球,球皮硬度(ShoreD)均為62±2,且球的整體壓縮(Compression)為65±7度;差別在於,實驗例的高爾夫球中內覆蓋層(即中間層)具有3wt%的晶鬚,對照例的高爾夫球中內覆蓋層則未添加晶鬚。 The experimental and control golf balls are all three-layer golf balls, the skin hardness (ShoreD) is 62±2, and the overall compression of the ball is 65±7 degrees; the difference is that the experiment In the golf ball of the example, the inner cover layer (that is, the middle layer) has 3% by weight of whiskers, and in the golf ball of the comparative example, no whiskers are added.
[實施例的有益效果] [Beneficial effect of embodiment]
本發明的其中一有益效果在於,本發明所提供的內部具有晶鬚的多層高爾夫球及其製造方法,其能通過“內覆蓋層包含由晶鬚所構成的三維網絡結構,其中晶鬚佔內覆蓋層總重量的1-5%”以及“內、外覆蓋層分別具有特定的彎曲模數”的技術方案,以增加擊球距離(包括飛行距離及滾動距離),同時兼顧球的後旋、打擊手感和耐久性。 One of the beneficial effects of the present invention is that the multilayer golf ball with whiskers provided therein and the manufacturing method thereof can pass the “inner cover layer includes a three-dimensional network structure composed of whiskers, in which the whiskers occupy the inner "1-5% of the total weight of the cover layer" and the "inner and outer cover layers each have a specific bending modulus" technical solution to increase the hitting distance (including the flying distance and rolling distance) while taking into account the backspin, Combat feel and durability.
更進一步來說,本發明之製造方法通過“先將晶鬚按1:9的重量比混入一成型樹脂,再從所形成的樹脂組合物中取一部分,並按3:7的重量比混入另一成型樹脂,然後使用所形成的樹脂組合物作為原料來成型內覆蓋層”的技術方案,可使晶鬚在內覆蓋層中具有優越的分散性,以避免團聚現象發生而影響到球體性能。 Furthermore, the manufacturing method of the present invention involves "mixing the whiskers into a molding resin at a weight ratio of 1:9, then taking a part from the resin composition formed, and mixing into another at a weight ratio of 3:7. "Forming a resin, and then using the formed resin composition as a raw material to form the inner cover layer" technical solution, can make the whiskers have excellent dispersion in the inner cover layer, to avoid the occurrence of agglomeration and affect the performance of the sphere.
以上所公開的內容僅為本發明的優選可行實施例,並非因此侷限本發明的申請專利範圍,所以凡是運用本發明說明書及圖式內容所做的等效技術變化,均包含於本發明的申請專利範圍內。 The content disclosed above is only a preferred and feasible embodiment of the present invention, and therefore does not limit the scope of the patent application of the present invention, so any equivalent technical changes made by using the description and drawings of the present invention are included in the application of the present invention. Within the scope of the patent.
G‧‧‧內部具有晶鬚的多層高爾夫球 G‧‧‧Multilayer golf ball with whiskers inside
1‧‧‧球心 1‧‧‧ball heart
2‧‧‧內覆蓋層 2‧‧‧Inner cover
3‧‧‧外覆蓋層 3‧‧‧Outer cover
31‧‧‧球窩 31‧‧‧ball socket
Claims (11)
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TW108104826A TWI685413B (en) | 2019-02-13 | 2019-02-13 | Multilayered golf ball having whiskers and manufacturing method thereof |
CN201910224130.6A CN111558209B (en) | 2019-02-13 | 2019-03-22 | Method for manufacturing multilayer golf ball with whiskers inside |
US16/658,558 US20200254312A1 (en) | 2019-02-13 | 2019-10-21 | Multilayered golf ball having whiskers and manufacturing method thereof |
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TW202030074A TW202030074A (en) | 2020-08-16 |
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TW201837103A (en) * | 2017-04-14 | 2018-10-16 | 宇榮高爾夫科技股份有限公司 | Method of manufacturing golf ball having a shell with networks structure |
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US7247676B2 (en) * | 1997-05-27 | 2007-07-24 | Acushnet Company | For golf balls with non-ionomer casing layer |
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US7427243B2 (en) * | 2002-06-13 | 2008-09-23 | Acushnet Company | Golf ball with multiple cover layers |
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US7244194B2 (en) * | 2004-05-07 | 2007-07-17 | Acushnet Company | Thick inner cover multi-layer golf ball |
US7410430B2 (en) * | 2005-07-27 | 2008-08-12 | Sri Sports Limited | Golf ball |
US7396301B2 (en) * | 2005-08-25 | 2008-07-08 | Sri Sports Limited | Golf ball |
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JP5258262B2 (en) * | 2007-11-08 | 2013-08-07 | ダンロップスポーツ株式会社 | Golf ball |
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CN205815016U (en) * | 2016-06-22 | 2016-12-21 | 宇荣高尔夫科技股份有限公司 | Housing has cancellated golf |
-
2019
- 2019-02-13 TW TW108104826A patent/TWI685413B/en active
- 2019-03-22 CN CN201910224130.6A patent/CN111558209B/en active Active
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CN104363967A (en) * | 2012-05-17 | 2015-02-18 | 耐克创新有限合伙公司 | Golf ball with core material containing rubber and polyurethane |
TW201837103A (en) * | 2017-04-14 | 2018-10-16 | 宇榮高爾夫科技股份有限公司 | Method of manufacturing golf ball having a shell with networks structure |
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