200422075 玖、發明說明： 【發明所屬之技術領域】 本發明係有關於鐵桿、挖起桿、金屬木桿或推桿型的 高爾夫球桿頭，或用於此種球桿頭之鑲嵌部，包含含鐵金 屬’更特別地包含延性鐵或灰口鑄鐵。 【先前技術】 本申請案係主張於2003年2月27日申請之美國專利 申請案第60/499, 832號，以及在2003年10月1號申請之 美國專利申請案第60/507,804號，其整體所揭示者係在本 案中納入作為參考。 許多傳統高爾夫球桿頭以及使用於高爾夫球桿頭中的 打擊面鑲後部係由多種材料構成，諸如：鋼、非鐵金屬合 金、鈦、鋁、複合材料、塑膠、橡膠以及類似者。與這種 使用傳統地利用於高爾夫球桿頭製造技藝之材料所構成的 南爾夫球桿頭有關的缺點包含：在高爾夫球桿頭打擊一高 爾夫球期間以及之後分給高爾夫球員一種「粗糙」的觸感 、粗劣的耐久度、劣質的可加工性、+良的耐磨性 '在特 ，的，ΐ限制中使用高密度材料設計球桿有關之不足的重 里預异、在鑄造步驟中造成的主要模型和淨餘部之間明顯 的尺寸差、以及高成本的製造。 · 因此，仍存在有對於高爾 其能減少上述之缺點且提供有 吸震能力、可加工性、耐磨性 夫球桿材料和設計之需求， 利的特性，例如改進的材料 、增加的強度一重量比、相 200422075 、可接受的表 低材料成本 對：其他鐵材料減少的密度、合適的伸展性、 面处理和電M、廣範圍的機械性質操作 、減少的收縮率以及接近淨值形狀鑄造，、 【發明内容】 本發明係-種高爾夫球桿頭，由 前技術高f夫球桿材料和 =服上述在先 成。本發明有利的古爾… 和缺陷之材料所製 是延性鐵或灰口特別地，該鐵材料可以 球r頭的鐵㈣可以完全的呈現於 表才干頭，或者呈現於該球桿頭的一八 球打擊表面中的鑲嵌部Ρ球桿㈣ 、 /、中w亥球扣頭的剩餘部分可以是 相同或不同的材料。 【實施方式】 〜本發明係有關於鐵桿、挖起桿、金屬木桿或推桿型的 南爾夫球桿頭，或用於此種球桿頭之鑲嵌部，包含含鐵金 屬，更特別地包含延性鐵（ductile iron)或灰口鑄鐵（ gray iron)。此種金屬可包含高鎳延性鐵（high nickel ductile iron)、高矽延性鐵（high-siiicorl ductile iron)、退火延性鐵（annealed ductile iron)、奥氏體 等溫淬火延性鐵（austempered ductile iron)以及灰口 鑄鐵。 延性鐵係為一種鑄鐵，其已經被處理在鑄造步驟期間 包含鎮、鈽或稀有地球金屬（原子序數5 7 — 7 1號）以 200422075 w成貫質上其所有之石墨碳（graphitic carb〇n)在鑄態 (as-cast condition )中之主要矽—鐵矩陣（ir〇n— silicon matrix)之中採取球粒的形式。在鑄態中，石墨 球係懸浮於鐵氧體（ferrite)或珠光體（pearlite)的矩 陣之中，帶有偶爾出現的碳化物。使用熟習冶金技術之人 士所習知的退火步驟，珠光體和碳化物係轉變成幾乎為鐵 氧體的顯被結構。該新形成的鐵氧體環繞於在鑄造步驟期 間形成的石墨球，並且產生一具有高延展性、增強的吸震 能力，以及大約比普通鋼密度低大約丄〇 %的中等強度合 金。 奥氏體等溫淬火延性鐵係一種延性鑄鐵，其已藉由習 头的控制熱步驟，其導致一包含懸浮於主要針狀鐵氧體以 及高碳奥氏體之石墨球的矩陣顯微結構。此顯微結構提供 優於鑄態或退火延性鐵之改進的強度，且同時提供適當的 延展。 田 灰口鑄鐵係一種鑄鐵，未以石墨球化劑來處理，其中 只貝上所有的石墨碳在镑態中形成片狀於主要石夕—鐵矩陣 之中。此種在鐵矩陣之中的片狀石墨結構提供許多材料的 有利特性，包含傑出的吸震能力、出色的耐磨性和可加工 性’以及相對於其他鐵材料的減少的密度。灰口鑄鐵的吸 震能力比普通鋼的吸震能力大上1 2 5倍。 本發明的高爾夫球桿頭較佳地包含具有在以下重量胃 分比範圍中之成份的延性鐵： 2· 8到4· 3重量百分比的碳， 200422075 1. 5到5. 5重量百分比的石夕， 0到1重量百分比的銅， 小於0. 1重量百分比的鎂， 小於0. 15重量百分比的磷， 以及剩餘大部分為鐵。 本發明的高爾夫球桿頭較佳地亦可包含具有在以下重 量百分比範圍中之成份的灰口鑄鐵： 2. 8到4. 3重量百分比的碳，200422075 发明 Description of the invention: [Technical field to which the invention belongs] The present invention relates to a golf club head of iron, wedge, metal wood or putter type, or an inlay for such a club head, including The ferrous metal 'more particularly comprises ductile iron or grey cast iron. [Prior art] This application claims US Patent Application No. 60/499, 832 filed on February 27, 2003, and US Patent Application No. 60 / 507,804 filed on October 1, 2003. The entire disclosure is incorporated by reference in this case. Many conventional golf club heads, as well as the rear facings used in golf club heads, are composed of a variety of materials, such as steel, non-ferrous alloys, titanium, aluminum, composite materials, plastics, rubber, and the like. Disadvantages associated with this type of Nanlf club head using materials traditionally used in golf club head manufacturing techniques include: giving the golfer a "roughness" during and after a golf club head hits a golf ball The tactile feel, poor durability, inferior workability, and good abrasion resistance are the major disadvantages associated with the use of high-density materials in the design of clubs, which are caused by the casting process. Significant dimensional difference between the main model and the net part, and high cost manufacturing. · Therefore, there still exists a demand for golf club materials and designs that can reduce the above-mentioned shortcomings and provide shock absorption, processability, and abrasion resistance, such as improved materials, increased strength, etc. Weight ratio, phase 200422075, acceptable surface low material cost pair: reduced density of other ferrous materials, suitable stretchability, surface treatment and electrical M, wide range of mechanical properties operation, reduced shrinkage, and near net shape casting, [Summary of the Invention] The present invention is a kind of golf club head, which is made of the high-tech golf club material of the prior art. The advantageous gur ... and the defective material of the present invention are made of ductile iron or gray mouth. In particular, the iron material can be the iron head of the ball r head, which can be completely displayed on the surface talent head, or on one of the club heads. The rest of the inlaid portion P clubs in the eight-ball striking surface, the middle of the ball, and the middle of the ball buckle may be the same or different materials. [Embodiments] ~ The present invention relates to iron heads, wedges, metal-wood or putter-type Nanlf club heads, or inlays for such club heads, containing ferrous metals, and more particularly The ground contains ductile iron or gray iron. Such metals may include high nickel ductile iron, high-siiicorl ductile iron, annealed ductile iron, and austenitic ductile iron. And gray cast iron. Ductile iron is a type of cast iron that has been treated during the casting step to contain town, thorium, or rare earth metals (atomic number 5 7 — 7 1) to all of its graphitic carbon on the basis of 200422075 w. ) In the as-cast condition, the main silicon-iron matrix (iron-silicon matrix) takes the form of pellets. In the as-cast state, graphite spheres are suspended in a matrix of ferrites or pearlites with occasional carbides. Using an annealing procedure known to those skilled in metallurgy, the pearlite and carbide systems are transformed into an almost ferrite-covered structure. The newly formed ferrite surrounds the graphite spheres formed during the casting step and produces a medium-strength alloy with high ductility, enhanced shock absorption, and a density that is approximately% 0% lower than that of ordinary steel. Austenitic isothermally quenched ductile iron is a type of ductile cast iron that has undergone a controlled thermal step of the head, which has resulted in a matrix microstructure containing graphite spheres suspended in primary acicular ferrite and high carbon austenite . This microstructure provides improved strength over as-cast or annealed ductile iron, while at the same time providing proper ductility. Tian Gray cast iron is a type of cast iron that is not treated with a graphite nodulizing agent. Among them, all of the graphite carbon on the shell forms flakes in the pound state in the main stone-iron matrix. This flaky graphite structure in an iron matrix provides the beneficial properties of many materials, including outstanding shock absorption, excellent abrasion resistance and processability ', and reduced density relative to other iron materials. The shock absorption capacity of gray cast iron is 1 2 5 times greater than that of ordinary steel. 5 重量 ％ 的 石 The golf club head of the present invention preferably contains ductile iron having a component in the following weight ratio range: 2 · 8 to 4 · 3 weight percent carbon, 200422075 1.5 to 5.5 weight percent stone Evening, 0 to 1 weight percent of copper, less than 0.1 weight percent of magnesium, less than 0.15 weight percent of phosphorus, and the remainder is mostly iron. The golf club head of the present invention may preferably also include gray cast iron having a composition in the following weight percentage range: 2. 8 to 4.3 weight percentage carbon,
1. 5到3. 5重量百分比的石夕， 小於1重量百分比的銅， 小於2重量百分比的猛， 小於2. 5重量百分比的鎳， 以及剩餘大部分為鐵。1.5 to 3.5 weight percent of Shi Xi, less than 1 weight percent of copper, less than 2 weight percent of fierce, less than 2.5 weight percent of nickel, and most of the rest is iron.
本發明的高爾夫球桿頭可具有示意地繪示在圖1 A至 圖4 B中的範例形式。圖1 A、圖2 A、圖3 A和圖4 A 分別示意地繪示出實質上一體成型之鐵桿1 0、挖起桿2 0、金屬木桿3 0和推桿4 0的球桿頭。圖1 B、圖2 B A、圖3 B和圖4 B A分別示意地繪示出鐵桿1 2、挖起 桿2 2、金屬木桿3 2和推桿4 2的球桿頭，每一個分別 地包含球打擊面鑲嵌部14、24、34、44。 其中一球桿頭本體1 2、22、32、42包含延性 鐵，面鑲嵌部14、24、34或44可包含不同的材料 ，諸如：非鐵合金，像是鋁合金、鎂合金或類似者；陶瓷 材料；不銹鋼；淬硬鋼或類似者。根據該鑲嵌部之材料成 10 分’該鑲嵌部可被壓配於 接、以黏著_接或其他結合方^本體之中，亦可使用谭 在進步的貫施例中，今替』 、”、以可包含延性鐵^^頭本體10、20 26、 36或4“ /十5又口鑄鐵，除了插勒16、 27、 3 口 =鞘—球桿頭本體連接區17、 密度不錢鋼或二=:f曲、高延展性不錄鋼或低 別球員的球桿^ 心插鞘之f曲以容納適合於特 鐵或力中I擊面鎮甘欠部1 4、2 4、3 4或4 4包含延性 口每鐵’球桿頭本體12、22、32或42可包 含不同的材料’諸如：不錢鋼；碳鋼；複合材料，像是碳 纖強化複合材料；非鐵材料合金，像是鋁合金、銅合金、 猛合金，以及類似者。 八中本Is明的咼爾夫球桿頭包含延性鐵、該延性鐵在 鑄造或熱處理時可具有從包含等級125/8〇/1〇 ; 1 50/1 00/07 ; 200/1 55/01 ;以及 1 30/185/00 之群組中選出 的ASTM 897等級。相同地，該延性鐵可具有從包含等級 60-4(M8 ; 65-45-12 ; 80-55-06 ; 1 00-70-03 ;和 1 20-90- 02之群組中選出的ASTM A536等級。 其中本發明的該高爾夫球桿頭包含灰口鑄鐵，該灰口 鑄鐵可具有從包含等級20、30、40、50和60的群組中選 出的ASTM張力等級。 本發明的高爾夫球桿頭可包含具有從5到6. 8 g/cm3 以及從7. 0到7. 4 g/cm3範圍中之密度的鐵金屬。此種高 200422075 爾夫球桿頭較佳地將具有大於大約7.0到7·4 g/cm3範圍 中之密度，較佳地在大於大㉟7·“"·2 g/cm3範圍之中 。更佳地，此種高爾夫球桿頭將具有從大約7· q到7· 2 g/cm3範圍中的密度，且最佳地具有從7· 06到7· 1 g/cm3 範圍中的密度。 其中本發明之高爾夫球桿頭包含延性鐵，該延性鐵將 具有大約至240 ksi之範圍的抗張強度。較佳地，該抗張 強度將具有從大約30至240 ksi之範圍，且更佳地在大約 30至大約140的範圍中，而更佳地在大約3〇到1〇〇 ksi 的範圍中，且甚至更佳地係在大約5〇到大約85 ksi的範 圍之中。戎延性鐵的抗張強度亦可在較佳的範圍從大約 1 0 0到大約1 6 5 k s i之中。 此外，當本發明的高爾夫球桿頭包含延性鐵時，該延 性鐵較佳地將具有從大約30至大約21〇 ksi之範圍中的 0. 2%偏移屈服強度。更佳地，該〇· 2%偏移屈服強度將在大 約30到70 ksi的範圍中。該〇· 2%偏移屈服強度可更佳地 在大約40到大約130 ksi的範圍中，且甚至更佳地係在大 約40到大約65 ksi的範圍中。另一個較佳的〇· 2%屈服強 度範圍係在大約80到大約185 ksi的範圍之中。 當本發明的咼爾夫球桿頭包含延性鐵時，該延性鐵可 具有至大約28%之範圍中的延伸率。較佳地，該延伸率將 從大約4%到25%的範圍中，且更佳地從大約7%到大約25〇/〇 的範圍中，甚至更佳地在大約12%到大約25%的範圍中，且 最佳地在大約1 5%到大約25%的範圍中。 12 200422075 其中本發明的高爾夫球桿頭包含延性鐵，該延性鐵的 密度較佳地係從大約7.0到大約7.2g/cm3之範圍中，較 佳地將在大約7· 06到7· 1 g/cm3範圍之中。 當本發明的高爾夫球桿頭係藉由禱造一延性鐵材料而 形成時’該延性鐵應具有-鑷造收縮率，介於大約〇 5%和 大約1%之間的範圍，並且該鑄造收縮率較佳地大約係〇·7% /、中本發明之高爾夫球桿頭包含延性鐵，該延性鐵應 /、有攸大、力20到大約25 msi之範圍中的彈性模數。該彈 性模數較佳地係從大約22到23 5 msi之範圍中。 其中本發明之高爾夫球桿頭包含延性鐵，該延性鐵應 具有從大約0.23至大約0.27之範圍中的泊松比（The golf club head of the present invention may have an exemplary form schematically illustrated in FIGS. 1A to 4B. Figures 1 A, 2 A, 3 A, and 4 A schematically illustrate the club heads of substantially integrally formed iron 10, wedge 20, metal wood 30, and putter 40, respectively. . Figure 1 B, Figure 2 BA, Figure 3 B, and Figure 4 BA schematically illustrate the club heads of iron 1, 2, wedge 2, 2, metal 32, and putter 4, respectively. Contains the ball striking surface inlays 14, 24, 34, and 44. One of the club head bodies 1, 2, 22, 32, 42 contains ductile iron, and the face inlaid portions 14, 24, 34, or 44 may include different materials, such as: non-ferrous alloys, such as aluminum alloys, magnesium alloys, or the like; Ceramic materials; stainless steel; hardened steel or similar. According to the material of the inlaid part, it is divided into 10 points. The inlaid part can be press-fitted into the joint, the adhesive joint or other combination. It can also be used in the progressive embodiment of Tan, this time. " In order to include ductile iron ^^ head body 10, 20 26, 36 or 4 "/ ten 5 and 5 cast iron, in addition to insert 16, 27, 3 port = sheath-club head body connection area 17, high density steel Or two =: f-curve, high ductility non-recording steel or low-level player's club ^ f-curve of the heart sheath to accommodate suitable for the special iron or force I hit the town owing part 1 4, 2, 4, 3 4 or 4 4 each ductile iron 'Club head body 12, 22, 32 or 42 may contain different materials' such as: stainless steel; carbon steel; composite materials such as carbon fiber reinforced composite materials; non-ferrous alloys , Such as aluminum alloy, copper alloy, fierce alloy, and the like. The golf club head of Yasakamoto Isaki contains ductile iron, which may have a grade from 125 / 8〇 / 1/10 when casting or heat treatment; 1 50/1 00/07; 200/1 55 / 01; and ASTM 897 selected from the group 1 30/185/00. Similarly, the ductile iron may have ASTM selected from the group consisting of grades 60-4 (M8; 65-45-12; 80-55-06; 100-70-03; and 1 20-90-02) A536 grade. Wherein the golf club head of the present invention includes gray cast iron, the gray cast iron may have an ASTM tension level selected from the group consisting of levels 20, 30, 40, 50, and 60. The golf ball of the present invention The head may include ferrous metal having a density in the range from 5 to 6.8 g / cm3 and from 7.0 to 7.4 g / cm3. Such a high 200422075 golf club head will preferably have a diameter greater than about Density in the range of 7.0 to 7.4 g / cm3, preferably in the range greater than ㉟7 · "" · 2 g / cm3. More preferably, such a golf club head will have a range from about 7.q Density in the range of 7.2 g / cm3, and optimally in the range of 7.06 to 7.1 g / cm3. Wherein the golf club head of the present invention contains ductile iron, which will have A tensile strength in the range of about to 240 ksi. Preferably, the tensile strength will have a range from about 30 to 240 ksi, and more preferably in a range of about 30 to about 140, and It is preferably in the range of about 30 to 100 ksi, and even more preferably in the range of about 50 to about 85 ksi. The tensile strength of ductile iron can also be in a better range from about 1 0 0 to about 16 5 ksi. In addition, when the golf club head of the present invention contains ductile iron, the ductile iron will preferably have 0.2 in a range from about 30 to about 21〇ksi % Offset Yield Strength. More preferably, the 0.2% Offset Yield Strength will be in the range of approximately 30 to 70 ksi. The 0.2% Offset Yield Strength may be better at approximately 40 to approximately 130 ksi Range, and even more preferably in the range of about 40 to about 65 ksi. Another preferred range of 0.2% yield strength is in the range of about 80 to about 185 ksi. When the present invention When a golf club head contains ductile iron, the ductile iron may have an elongation in the range of about 28%. Preferably, the elongation will be in the range of about 4% to 25%, and more preferably In a range from about 7% to about 25/0, even more preferably in a range from about 12% to about 25%, and optimally In the range of about 15% to about 25%. 12 200422075 wherein the golf club head of the present invention contains ductile iron, and the density of the ductile iron is preferably in a range from about 7.0 to about 7.2 g / cm3. It will preferably be in the range of approximately 7.06 to 7.1 g / cm3. When the golf club head of the present invention is formed by praying for a ductile iron material, the ductile iron should have a tweezer shrinkage In the range between about 05% and about 1%, and the casting shrinkage is preferably about 0.7%, the golf club head of the present invention contains ductile iron, the ductile iron should /, There is a high modulus of elasticity in the range of 20 to about 25 msi. The elastic modulus is preferably in the range from about 22 to 23 5 msi. Wherein the golf club head of the present invention contains ductile iron, the ductile iron should have a Poisson ratio in a range from about 0.23 to about 0.27 (
Poisson’s ratio) 〇 其中本發明之高爾夫球桿頭包含延性鐵，該延性鐵應 具有從大約12〇到大約810之範圍中的布氏硬度值（ Bnnell Hardness Number)。該布氏硬度值較佳地係介於 大約300到大约1 圍中。另一個較佳的範圍係從大 約12 0到大約3 〇 0。 其中本發明之高爾夫球桿頭包含延性鐵，該延性鐵應 的振動衰減時間，或小於典型不錄鋼的振動衰減 時間。 错靡=本發明的高爾夫球桿頭包含灰口轉鐵，該灰口鑄 鐵應具有從大約7 〇 ξ•丨士 & ， ς · 力7·3 g/cm之範圍令的密度， 係在大約7.1到大約7.2 g/cm3的範圍之中。 13 200422075 其中本發明的高爾夫球桿頭包含灰口鱗鐵，該灰口鎮 鐵的抗張強度應大約至80 ksi之範圍，較佳地係從大約 15至大約60 ksi之範圍，且更佳地在大約20至大約40 的範圍中。 其中本發明的高爾夫球桿頭包含灰口鑄鐵，該灰口鑄 鐵應具有從大約10到大約25 _之範圍中的彈性模數。 4 -中本I明的间爾夫球桿頭包含灰口鑄鐵，該灰口禱 鐵應具有從大約100到大約350之範圍中的布氏硬度值， 且較佳地係介於大約100到大約250之範圍中。 其中本發明的高爾夫球桿頭包含灰口禱鐵，該灰口禱 鐵應具有比普通的不錄鋼2到125倍的吸震能力。 本發明之優點的材料與其他球桿頭相比，具有增進的 強度-重量比、相當低的密度、合適的伸展特性以及相當 低的成本。當使用合適的球桿頭製造技術時，這些材料顯 示出具有極微小之收縮的優越的可鑄性，而因此起因於鑄 每y驟flt ;1於球杯頭主要模型和淨值部之間的最小淨尺寸 差。其亦呈現出良好的可加工性以幫助最後的修整和精加 工：以及經由成分改變和熱處理技術而達成廣泛的機械特 作月匕力。並且’這些製造優點係可在較低的製造成本 中達成。 “ ^此’本發明由延性鐵或灰口禱鐵製造的球桿頭享有 藉由k些村料所呈現之優越的财久性和耐磨性。此外，相 據本發明的高爾夫球桿頭具有與退火延性鐵、奥氏體等溫 泮火延性鐵以及灰σ鑄鐵之相#強之硬度值有關的改進2 14 200422075 耐磨知·性’這些量測的硬度係可比得上 係大於典型的碳鋼或不銹鋼之硬度。 且在許多例子中 “最後，這些材料之傑出的吸震能力和其他特性提供由 延些材?所製造發明的球桿頭呈現對於使用此球桿頭之高 爾夫球員無論是在本發明球桿頭撞擊-高爾夫球期間或: 後的優越、、觸咸，/ $ #六 B> 蜩α之此力。目别在南爾夫球桿製造技蓺 二,習知且期待的係為，在撞擊高爾夫球時一可察覺之 '、柔 軟’’觸感大體上係相對於球桿頭材料之硬度值――材料硬 度越大，觸感，反之亦然。然而，不管相卷大 的硬度值’延性鐵或灰口鑄鐵之增強的材 ： 減少的密纟（其容許有利的質量^位）提 2及 推在：擊球¥，觸感上意外顯著之改進。此在觸感上的改 進係超出由熟習高爾夫球桿製造技藝之人士所㈣之 硬度值的典型相互關係。 /、 4 熟習高爾夫球桿製造技藝之人士將可瞭解的 背離本發明之範疇和精神下可在細部上達成少量 這些修改係藉由隨後的申請專利範圍所界定。 是，在不 的修改，Poisson's ratio) Wherein the golf club head of the present invention contains ductile iron, the ductile iron should have a Bnnell Hardness Number in a range from about 120 to about 810. The Brinell hardness value is preferably in the range of about 300 to about 1 range. Another preferred range is from about 120 to about 300. Wherein, the golf club head of the present invention contains ductile iron, and the vibration decay time of the ductile iron should be less than that of typical non-recorded steel. Staggered = The golf club head of the present invention includes a gray cast iron, the gray cast iron should have a density in the range of about 7 〇ξ • 丨 士 & force 7.3 g / cm. In the range of about 7.1 to about 7.2 g / cm3. 13 200422075 Wherein the golf club head of the present invention includes gray scale iron, the tensile strength of the gray mouth iron should be in the range of about 80 ksi, preferably in the range of about 15 to about 60 ksi, and more preferably Ground is in the range of about 20 to about 40. Wherein the golf club head of the present invention contains gray cast iron, the gray cast iron should have a modulus of elasticity in a range from about 10 to about 25 mm. 4-The Nakamoto I club head contains gray cast iron, which should have a Brinell hardness value in the range from about 100 to about 350, and preferably between about 100 to In the range of about 250. Wherein the golf club head of the present invention includes a gray mouth iron, the gray mouth iron should have a shock absorption capacity 2 to 125 times that of ordinary non-recorded steel. Advantageous materials of the present invention have improved strength-to-weight ratios, relatively low density, suitable stretch characteristics, and relatively low cost compared to other club heads. When using suitable club head manufacturing techniques, these materials show superior castability with extremely small shrinkage, and therefore result from casting every flt; 1 between the main model of the club head and the net portion Minimum net size difference. It also exhibits good machinability to assist in final trimming and finishing: as well as a wide range of mechanical special forces through composition change and heat treatment techniques. And 'these manufacturing advantages can be achieved at a lower manufacturing cost. "^ This' the club head made of ductile iron or gray iron according to the present invention enjoys superior financial and abrasion resistance exhibited by these materials. In addition, the golf club head according to the present invention Improvements related to the hardness values of annealed ductile iron, austenitic isothermal fire-ductile iron, and gray σ cast iron 2 14 200422075 Abrasion resistance and properties These measured hardness systems are comparable to systems greater than typical The hardness of carbon steel or stainless steel. And in many cases, "Finally, the outstanding shock absorption and other characteristics of these materials provide club heads made from these materials. It is during the club head impact-golf of the present invention or after: the superiority, the salty touch, / # 六 B > 蜩 α this force. For the second time in Nanlf's club manufacturing technology, the conventional and expected system is that a perceivable 'soft' touch when hitting a golf ball is generally relative to the hardness value of the club head material- ―The harder the material, the better it feels, and vice versa. However, regardless of the large hardness value of the reinforced material, ductile iron or gray cast iron: reduced compactness (which allows for favorable quality ^) is increased by 2 and pushed in: hitting ¥, unexpectedly significant in touch Improve. This tactile improvement is beyond the typical correlation of hardness values as understood by those skilled in golf club manufacturing. /, 4 Those who are familiar with golf club manufacturing techniques will understand that departure from the scope and spirit of the present invention can achieve a small amount in detail. These modifications are defined by the scope of subsequent patent applications. Yes, without modification,
【圖式簡單說明】 (一）圖式部分 A τ.解，其包 爾夫球桿頭之圖示，其可包含本發明 ^ 例，其中： 1 τ ^[Schematic description] (1) Schematic part A τ. Solution, the diagram of the golf club head, which may include the present invention ^ example, where: 1 τ ^
係一示範性的鐵桿型 向爾夫球桿頭之前視圖 15 J I 本發明； 从玎擎面視圖 ^ 7 圖1 B係另-種示範性 視圖或打擊面視圖 …爾夫球才干碩之前 含-鑲嵌部； 本發明，其中該打擊表面包 圖2 A係一示範性的挖起桿 圖或打擊面視圖，其可實施本發明，爾夫“干項之前視 視二得'另一種示範性的挖起型高爾夫球桿頭之前 視圖或打擊面視圖， 干貝之刖 含-鑲嵌部； 本發明，其中該打擊表面包 圖3纟係，示範性的金屬木桿型高爾夫 視圖或打擊面視圖，其可實施本發明； 之則 々: :、B係、另一種不範性的金屬木型高爾夫球桿頭之 :?或打擊面視圖，其可實施本發明，纟 包含一鑲嵌部； 丁莩表面 圖4 A係、一示範性的推桿型高爾夫 或打擊面視圖，其可實施本發明； 之…見圖 圖4 B係、另一種示範性的推桿型高爾夫球 視圖或打擊面視圖’其可實 甘士 4 | ^ 含_ 。 ，、了貫…明’其中該打擊表面包 元件代表符號 0 2 4 111 鐵桿型球桿頭本體 鐵桿型球桿頭本體 鑲嵌部 16 200422075 17 2 0 2 2 2 4 2 6 2 7 3 0 3 2 3 4 3 6 3 7 4 0 4 2 4 4 4 6 4 7 插鞘 插鞘一球桿頭本體連接區 挖起桿型球桿頭本體 挖起桿型球桿頭本體 鑲嵌部 插勒 插鞘一球桿頭本體連接區 金屬木桿型球桿頭本體 金屬木桿型球桿頭本體 鑲嵌部 插勒 插鞘一球桿頭本體連接區 推桿型球桿頭本體 推桿型球桿頭本體 鑲嵌部 插勒 插勒一球桿頭本體連接區A front view of an exemplary iron-type golf club head 15 JI of the present invention; a view from the engine face ^ 7 Figure 1 B is another-an exemplary view or a hitting surface view ... the golf ball is capable before it contains- Mosaic section; the present invention, wherein the striking surface package FIG. 2A is an exemplary wedge bar view or striking surface view, which can implement the present invention Front view or hitting surface view of a wedge-type golf club head, the scallop shell-inlaid portion; the present invention, wherein the hitting surface includes FIG. 3, an exemplary metal-wood type golf view or hitting surface view, which The present invention can be implemented; then: 、, B series, another non-standard metal-wood golf club head:? Or striking surface view, which can implement the present invention, 纟 includes an inlaid portion; Ding 莩 surface FIG. 4 A, an exemplary putter-type golf or hitting surface view, which can implement the present invention; FIG. 4B series, another exemplary putter-type golf or hitting surface view 'its Ke Shi Gan Shi 4 | ^ Contains _. Ming 'where the striking surface package element represents the symbol 0 2 4 111 7 4 0 4 2 4 4 4 6 4 7 hosel hosel body connection area wedge club head body wedge shaft type club head inlaid part plugging hosel body connection Zone metal wood-type club head body metal wood-type club head body inlaid part insert insert sheath-club head body connection area putter-type club head body putter-type club head insert part insert One club head body connection area
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