CN1107073A - 高尔夫球棒及其制造方法 - Google Patents
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Abstract
一种金属木材类型的高尔夫球棒头,它具有一个
由高强度铝合金坯料整体成型的主体与一个以相同
或不同材料制成的底板,该底板固定在主体的下部面
上加工边的凹下部上。该主体有一个通过其下部壁
加工出的中空的空腔并且其壁厚比通常铸造的不锈
钢金属木材的厚,其前部的打球面可按任选的外突部
与隆起部以及打球面倾角进行加工。
Description
该发明一般是涉及高尔夫球棒,特别是所谓“金属木材”类型的高尔夫球棒及其制造方法。
高尔夫球棒一般分为4种主要型式,即轻击棒、铁头球棒、开阔地球棒(fair way club)与开球棒(driver)。以往开球棒通常是木制,因此往往叫作“木制棒(woods)”。但是在最近,开球棒也用金属制作,因此有时叫作“金属木材棒(metal woods)”。
大部分的金属木材棒传统上是用不锈钢进行制作,作为极少的例外,此等金属木材棒是通过熔铸造制作成为中空不锈钢壳体。这种熔模铸造方法容易产生不合格品,因此,高尔夫球棒的打球面可能会有不均匀或含有许多缩孔。为了掩盖这样的缺点要进行磨光,并且有必要利用喷砂进行修饰。利用熔模铸造法制作具有薄壁部的不锈钢球棒头时,很多缺陷品是由于多孔和薄弱部位而产生的。另外,熔模铸造方法,其本身成本高,工具设备昂贵,而且所得的结果也不稳定一致。
不锈钢较重,因此必须将球棒头的壁部作得比较薄,使该球棒头的重量可以被人们接受。另外,当壁厚比较薄时,则该球棒头打击球时由于制造上的缺陷,有相当大的比例会产生球棒打球面变形,造成性能不稳定。
本发明的目的在于提供新型而且改进的金属木材高尔夫球棒头与新的而且改进的上述高尔夫球棒的制造方法。
按照本发明的一个方面高尔夫球棒头是由具有前部打球面、跟部、趾部、上部壁即凸起的顶面、下部壁即底板与后部壁的中空主体构成,该中空的主体是用锻造材料整体作成,并且具有通过下部壁铣削出的内部空腔。另成一体的底板是固定在上述主体的下部面上所机械加工出的凹下部,至少该主体是由锻造的铝合金或物理特性相当于铝合金的高密度非金属材料构成,其打球面经过机械加工即铣削而具有规定的外突部(bulge)与隆起部(roll),同时至少有3.175mm(0.125英寸)以上的壁厚。跟部最好有一由上部壁伸向跟部且终止于跟部内的孔。该孔是安装连接管的插口,并且具有一定的方向,以便确定所希望的打球面倾角以及球棒柄与头的夹角。
该球棒头由于是用锻造的单个固体坯料制成的,当使用同样的基本切削工具进行制作时,能形成所希望的打球面倾角、球棒柄与头的夹角重量分配以及其他参数。借此即可避免铸造的球棒头与焊接的球棒头的缺点,显著改进该球棒头的性能。通过使用轻质材料以及利用单个固体坯料进行制作,球棒头能设计成具有真正木材球棒头的打球特性,例如向上的控球效果(geareffect)(gear effect),由于重量上的限制,这在大的不锈钢铸造球棒头上一般是不能达到的。同时对于锻造的金属木材来说,当离开中心进行打击时,不会产生象在木材球棒头上那样程度的飞行距离损失,并且能减少对于象破裂(splitting)与碎屑那样的损伤的敏感性。
由于铝合金比不锈钢轻,能使壳体的壁部更厚,因此,虽然维持了男用球棒或女用球棒所要求的希望球棒重量,但是还能比不锈钢金属木材球棒提高强度。这种合金最好是6061 T6铝合金或7075 T6铝合金,这种铝合金目前主要使用于飞机制造业。
壳体即主体壁部没有必要为了满足重量限制而保持在最小的壁厚,可将材料补充分配到壳体上,从而根据希望调整球棒头的性能特点。例如,将额外的重量(extra weight)用于趾与跟部上,能使球棒头的最有效的击球中心点更增大。另外,将额外的重量加给后部壁,能使重心由球棒的打球面移开。因此,以离开球棒打球面中心的位置击球时,也能产生增大的控球效果。这种增大的控制效果,不论是对于不一定总是以球棒打球面的中心打击球的普通的高尔夫球爱好者,还是对于希望能更精确地控制球的飞行的职业高尔夫球运动员来说都是有帮助的。重心最好是位于与柿子树的木材的重心位置均等的点上,即球棒的前部面与后部面的大致中间。例如上述重心应位于由打球面向后方20mm-70mm的范围内。
按照本发明的另一方面,提供制造金属木材的高尔夫球棒头的方法。该方法包括以下步骤:形成具有上部面、下部面、前方端部与后方端部的铝固体坯料的过程以及切削出下部面并且形成规定尺寸的空腔。在包围上述空腔的下部面上机械加工用于安装底板的凹下部,将该底板嵌合固定在该凹下部。另外,机械加工前方端部,以便形成具有所需要的外突部(bulge)与隆起部(roll)的打球面。
上述坯料通过锻造制成突出部(lug),在机械加工上述空腔与用于安装底板的凹下部时,最好使用该突出部来夹持该坯料。对该坯料与固定在此坯料上的底板一起进行机械加工,以便形成球棒头的连续的跟部、趾部与后部壁。在下一步机械加工之前将该坯料由上述突出部处卸下,然后夹持不同的位置,以形成具有所需要的外突部与隆起部的打球面。
机械加工工序最好是使用计算机控制的切削机床即CNC装置来进行。由于使用该装置,能按照极精密的公差进行机械加工,可提高制成的球棒头的正确度。用这种方法制作的球棒头完全符合各种设计规格,另外,容易对该规格进行变更,能使其符合不同的设计参数。球棒头借助计算机化了的切削机床的切削过程不管是外部还是内部都能进行机械加工,本质上任何走样都不会发生,能获得高精度的制品。
利用高强度铝合金锻坯制作的球棒头在性能上是强韧的,而且远比以往的不锈钢金属木材具有优异的强度、性能与刚度。
图1是表示球棒头的最初锻件的立体图;
图2是表示在锻件的突出部对加工面进行切削的状态的略图;
图3是锻件的正面图;
图4是表示对底板用的面与内部空腔进行机械加工状态的侧面图;
图5是在图4中进行机械加工的锻件的平面图;
图6是沿图5中6-6线的剖视图;
图7是表示底板的安装与成形的侧面图;
图8是表示去掉突出部,进行球棒头的表面成形的状态的略图;
图9是表示在连接管座上进行钻孔的状态的说明图;
图10是完工状态下的球棒头的去掉一部的立体图;
图11是表示重心位置的球棒头的平面图。
下面,仅就有关本发明的高尔夫球棒及其制造方法,列举推荐实施例,参看附图进行以下说明。图1-图9表示有关本发明的推荐实施例的金属木材球棒头的制造方法的各工序,图10与图11表示完工状态下的球棒头10。制造方法的第1工序是锻造例如6061 T6铝合金或7075 T6铝合金那样的高强度铝合金固体坯料12。在一个实施例中是使用7075 T6铝合金。如图1与图3所示,坯料12具有:有短颈15的上部面14、有凹下部18的下部面16、有矩形突出的突出部22的前方端部与后方端部24。该坯料12如图2所示,首先夹持在固定的背部钳口26与可动钳口28之间,以便用铣刀32在突出部22上对加工面30进行切削。还有,图3是表示图2所示切削后的坯料12的正面图。
然后,在使用各种专用夹具与切削工具,在计算机控制的切削机床即CNC装置上按照精密规格对锻坯进行加工。夹持用突出部22在许多加工工序中用于夹持坯料。如图4所示,突出部22在铣床的夹持用具36的沟槽34中,是用夹紧螺栓37进行固定,通过对坯料的下部面16进行加工,进一步形成凹下部18,再有,使用切削工具40在坯料中切削出规定尺寸的空腔38。图5与图6表示在图4的工序中加工成的空腔38与凹下部18。最好在平坦的凹下部18上制成耳部42,如图5与图6所示,在各耳部42上加工出螺孔44。
利用插入螺孔44内的螺钉将图7中点划线所示的矩形平板46固定在机械加工过的凹下部18上。然后按图7所示的位置对坯料与固定于其上的板46一起进行机械加工,将该板46的端缘部切削成与坯料的侧面以及后部壁一致。最后形成底板48。由于将该底板同球棒头一起进行机械加工,能使球棒面由坯料向底板圆滑地过渡,使其完全一致。于是,底板是作为球棒头主体的一体的部分,进行整体的切削。在图示的实施例中,底板是用螺钉进行固定的,但是该底板,也可以有选择地利用粘合、冷缩配合、焊接或与此相当的技术方法进行固定。
底板也可以采用与球棒头的其余部分相同的铝合金,还可以采取例如黄铜之类的不同的材料。该黄铜使用于容易同砂土与岩石发生接触的球棒,例如2号、3号、4号、5号、6号、7号和9号的木制棒时,耐磨性比铝还要好。在图示的实施例中,底板是以由球棒头的前面即打球面向后方间隔开来的一个位置作为终端,但是在替代实施例中,也可以使其延展到球棒的前侧。在使用黄铜底板时,打球面的耐久性更加提高,另外,它能使球棒的前部面具有吸引人的外观。
在高尔夫球棒制造方法的下一个工序中,在卸下底板48之后,如图8所示,将经过部分机械加工的球棒头以螺钉锁紧用具52固定在固定工具50上。其次将突出的突出部22通过机械加工切除,切削成前部面以获得所希望的精密的外突部与隆起部的特性,借此制作成完工的打球面54。采用该制造方法时,可获得包括对称形与非对称形的外突部及隆起部的所有类型的打球面形状。在现有技术中,在外突部(由跟部到尖部)与隆起部(由顶部到底部)两个方向上,半径是恒定不变的,以此不同,打球面可机加工出椭圆的外突部与隆起部,即非真实的半径(not a true radius)。横过该打球面中央的区域加工成具有半径的边缘部(radiused edges)的平面。借此,能获得改进的打球特性。
在将包括所希望的沟槽55的打球面54机械加工之后,将球棒头夹持在相同的固定工具50内,并使其对着所希望的方向。然后如图9所示,使用钻头56加工用于安装连接管的孔。该孔的加工,要使得在完工的球棒头10上能获得所希望的球棒柄,与头的夹角以及打球面倾角。图10表示在有可能安装连接管62的方向上加工孔58的状态。因此,该孔是在利用计算机控制的铣削工序中,得到完善的机械加工与定位,以便获得直立、平坦、开放或封闭的打球面倾角以及所希望的球棒柄与头的夹角。最好是,孔58最好终止于球棒头跟部的固体材料中,但是也可以钻穿底板。
另外,连接管即管颈62最好也是铝合金,也可以采用与球棒头其余部分相同的材料。该管颈62要另外制作,使其具有精确的内径和外径。连接管即颈62也可以利用挤压、拉拔或锻造进行制作。然后,如图10所示,将连接管即管颈62插入孔58中,并压入到该孔58的端部,在规定的位置适宜地进行焊接或粘合。其后,将高尔夫球棒柄64插入连接管62中,在规定的位置进行粘合。该柄64可以为任何普通的高尔夫球棒柄材料,如钢、石墨、石墨硼及其他复合材料等。
为了安装球棒柄的端部使用铝管的插入颈(drop-in neck),由于此插入设计与轻质的材料(不锈钢重量的1/3),能使连接管部分的重量减轻。由于把因此而剩余的重量(extra weiqht)分配给球棒头的主体部,能使性能提高。如此,能使球棒头的主体部分的有效重量增加,能使碰撞时的动量增大,同时能使球的飞行距离潜在地增大。铝连接管胜过以往的不锈钢连接管的另一个优点是更柔软而且更富有挠性。因此,能使比较脆弱的普通石墨柄的断损之虞降低。对于钢制的球棒头来说,以石墨或复合材料制作的柄在柄接合部与连接管的顶部容易破损。铝的弹性模量是不锈钢的弹性模量的1/3,因此比相同尺寸的不锈钢柄更富有挠性。所以能降低柄的颈部在碰撞时承受的应力强度。
上面说明了在计算机控制的切削装置上用于机械加工单一的球棒头的方法,但是也能对多个头同时进行机械加工。将固体坯料安装在适当的随行工作台上,使其向切削工位前进,能按照计算机中的程度指令对所有的球棒头进行切削。也可以使用梭动系统,使连续的随行工作台向切削工位前进。
上述的方法是包括通过主体部的下部壁切削空腔的情形,但是该空腔也可以有选择地由其他方向例如主体部的上部壁、后部壁、前部面或端部壁进行切削。
该高尔夫球棒的制造方法是为制造高尔夫球棒头提供更迅速而且更精确的技术。代替在每次制作不同尺寸的球棒头时都需要更换不同的模具,复杂并且费用高的铸造与焊接工序,该制作方法能使用相同的基本的固定工具与切削工具,按照同一的基本的方法,制造在广范围内不同的球棒头。关于内部空腔,只是根据球棒的不同的类型铣削成不同的尺寸即可,另外,连接管用的孔与打球面能机械加工成满足打球面倾角(loft)以及球棒柄与头的夹角(lie)的需要。通过使用铝合金或与此等效的轻质材料,能在球棒头上的重量分配上进行更大的调整,另外,可以对球棒的重心与其他特性进行精密控制。
通过对球棒头10的设计可以改善触感与打球特性。如上所述,球棒头10最好全部或几乎全部用锻造的铝合金材料制成。适宜的合金之一是7075 T6铝合金。
该合金具有约67,000psi的屈服强度,另外,对于锻造形式(wrou &ht form)来说,具有76,000psi的极限强度。标号T6的意思是,铝材料要经过固溶热处理,然后在高温下进行人工时效。7075 T6铝每立方英寸重0.101磅,这比频繁使用于通常的金属木材球棒的不锈钢轻得多,每立方英寸不锈钢重0.290磅。
由于使用于该球棒头上的材料是轻质的,因而球棒头壁部的厚度可制得厚于以往的不锈钢头的壁厚,另外,能使得为了控制如同重心位置那样的特性而在球棒头上能进行分配不同重量的范围更宽广。完工状态的球棒头的前面,即打球面54最好至少有0.2英寸的厚度(而与不锈钢球棒打球面的厚度则为0.12英寸),跟部66、趾部68与后壁部70的厚度最好在0.09-0.125英寸的范围内(而不锈钢球棒的该厚度则为0.030英寸)。用锻造材料而不是用铸造材料制成的厚壁球棒头,其性能大大优于普通的不锈钢球棒头。
由于锻造工序能调整金属分子的排列结构,因此,虽然铝合金是比不锈钢轻、软的材料,但是通过锻造工序使其强度显著增大。材料是轻质的,因而使球棒头的壁厚可以比以往的球棒制作得更厚。因此锻造的铝合金球棒在承受由于与高尔夫球的冲击而产生的弯曲力时,比以往的不锈钢球棒还要强韧。
由性能的观点看,也是有厚壁部的球棒头比不锈钢制的球棒头优异。球由于冲击以每小时110英里的时速飞行时,假定开球棒头与该球在开球棒的中心接触约0.0005秒,则作用于开球棒的球棒头的球棒打球面上的平均力为1.467磅。接触时达到峰值的力约为2,000磅。当使用壁厚较薄的不锈钢的球棒打球面时,上述的大的力作用于其上时,比壁较厚的铝的球棒打球面肯定更加容易发生挠曲。另外,由于这种球棒的打球面的挠曲减小,故可获得更均一的性能。由于能使一般伴随着上述挠曲及回复而产生的能量损失为最小,还具有能获得飞行距离的效果。
铸件的比锻件脆,因此往往容易产生气孔、缩孔及其他缺陷,但是对于锻造来说,这一切都不会发生。伴随着铸造的不锈钢球棒头的苛刻使用,会产生例如产生裂缝与永久变形,而这类问题使用有关本发明的球棒能显著减少甚至避免。铸造壁厚较薄的壳体的不锈钢球棒头时,由于多孔性,大概要以30%左右大的比例产生不合格品。这成为增加制造成本的一个重要原因有关本发明的方法能消除这种不合格品的发生。
锻造的铝合金球棒头,其改善的性能也超过了不锈钢球棒。如上所述,由于在该球棒头上是使用轻质材料,因此不必用全部重量来维持构造上的完整性,不必用来维持结构完整性的额外重量即可进行分配,根据希望使球棒头的跟部、趾部与背部获得配重。跟部与趾部的配重能提供更大的所谓“甜点(SWeetspot)”,使经验少的选手也容易使用。后部配重有使重心由前部面向后部移动的效果,借此能提高控球效果,因此如图11所示,当球棒头背部的壁厚为t时,重心C位于由前部面向背面侧偏移的第1位置,但是当将上述壁厚增大到t′时,则该重心移动到新的位置C′。象这样的重心移动对于熔模铸造的球棒头来说是不能实现的。其理由是由于为取得构造的完整性,球棒周围的壁厚有一个最小必要限度,但是不能超过球棒头的最大重量。因此,不可能将额外的重量分配到球棒头的背面部,重心通常位于球棒的前部,并且对于这种球棒来说,几乎或是完全得不到控球效果。因此,例如以趾部那样离开中心的部分所打击的球将飞向右方。
如果重心偏离球棒柄,不是正确地重心打击球的情况下,在与球撞击时将会产生控球效果,该控球效果将会使球飞行时的弹道增大,是让选手能操纵球(work the boll)。因此,随着控球效果的增大选手可更好地控制球,有经验的选手一般都喜欢使用具有这种可能性的球棒。这种控制效果还有助于不一定总是用球棒打球面的中心打击球的更普通的高尔夫球爱好者。该球棒头的重心位置能进行设定,以便产生与优秀选手所喜欢的柿子树的木材制的球棒的控球效果相当的控球效果。换言之,能使重心C位于球棒的前部面与后部面的大致中间处。这种处理方法对于以往的金属木材球棒头来说是完全不可能的。
当高尔夫球击打不锈钢球棒头时会产生令人不快的声响。为减小这种声响在中心空腔要使用泡沫材料,而本发明的球棒头则不需要这样做。该球棒头的铝的厚壁构造能显著降低甚至消除撞击在不锈钢球棒上时产生的那种令人不快声音的振动。因此不需要泡沫材料,使中央空腔成为空洞而节省的重量可进行分配以改善性能。打高尔夫球的人使用该球棒头会感到较为柔和撞击,这种柔和的撞击改善触感,并且撞击时的声音会令人更加舒畅。
底板除外,球棒头最好用上述铝合金的单个锻坯整体进行制作,该底板是用与该球棒头同样的材料或不同的材料另外进行机械加工,但是,在球棒头的前部面上可以使用单独的精致镶块。在这种情况下,球棒头的打球面为了接受镶块要进行精密机械加工。
对于球棒头来说可以使用任何的高强度铝合金。按照相似的制造方法,也可以使用物理特性与铝类似的高密度非金属材料,如某种塑料。
虽然上面已经用举例的方式描述了本发明的推荐实施例,但是显然本专业的技术人员可以对公开的实施例作出各种修改而并不超出本发明的范围。
Claims (15)
1、一种高尔夫球棒头,其特征在于,由下列各部分构成:
主体部(10),它是用锻造的单个金属坯料(12)切削成的,具有前部打球面(54)、后部壁(70)、上部壁、下部壁、跟部(66)与趾部(68);
凹下部(18),它形成于该主体部(10)的下部壁上,其上允许固定另成一体的底板(48);
中空的空腔(38),它是对上述金属坯料(12)由凹下部(18)向主体部内方进行切削而成的,并使其在上述凹下部(18)上进行开口;
底板(48),它是配置在上述凹下部(18)上,将上述中空的空腔(38)的开口部封闭,利用螺栓等固定件将其固定在该凹下部(18)上;
在构成上能通过对上述中空的空腔(38)进行切削的程度的增加或减少,使制作完成后的球棒头获得所希望的重量分配。
2、按权利要求1所述的高尔夫球棒头,其特征在于:上述打球面(54)具有0.125英寸以上的壁厚。
3、按权利要求1所述的高尔夫球棒头,其特征在于:上述底板(48)是以与主体部(10)相同的材料构成的。
4、按权利要求1所述的高尔夫球棒头,其特征在于:上述底板(48)是以与主体部(10)不同的材料构成的。
5、按权利要求1所述的高尔夫球棒头,其特征在于:锻造的金属坯料(12)的材料是铝合金。
6、一种高尔夫球棒头,其特征在于:由下列各部分构成:
主体部(10),它是用锻造的单个金属坯料(12)切削成的,具有前部打球面(54)、后部壁(70)、上部壁、下部壁、跟部(66)与趾部(68);
凹下部(18),它形成于该主体部(10)的下部壁上,其上允许固定另成一体的底板(48);
中空的空腔(38),它是对上述金属坯料(12)由凹下部(18)向主体部内方进行切削而成的,使其上述凹下部(18)上进行开口;
底板(48),它是配置在上述凹下部(18)上,将上述中空的空腔(38)的开口部封闭,利用螺栓等固定件将其固定在该凹下部(18)上;
孔(58),它是设置于上述跟部(66)上,由上部壁按一定角度向内部延伸;
连接管(62),它另成一体,插入固定在上述孔(58)内;
通过对上述中空的空腔(38)进行切削的程度的增加或减少,使制作完成后的球棒头获得所希望的重量分配。
7、一种高尔夫球棒头,其特征在于,下列各部分构成:
主体部(10),它是用锻造的单个金属坯料(12)切削成的,具有前部打球面(54)、后部壁(70)、上部壁、下部壁、跟部(66)与趾部(68);
凹下部(18),它形成于该主体部(10)的下部壁上,其上允许固定另成一体的底板(48);
中空的空腔(38),它是对上述金属坯料(12)由凹下部(18)向主体部内方进行切削而成的,并使其在上述凹下部(18)上进行开口;
底板(48),它是配置在上述凹下部(18)上,将上述中空的空腔(38)的开口部封闭,利用螺栓等固定件将其固定在该凹下部(18)上;
外突部与隆起部,通过对上述主体部(10)的前面进行切削而形成的;
通过对上述中空的空腔(38)进行切削的程度的增加或减少,使制作完成后的球棒头获得所希望的重量分配,同时能在由上述主体部(10)的前面向后方离开的范围内调节重心位置。
8、按权利要求7所述的高尔夫球棒头,其特征在于:上述重心位于由打球面向后方20mm-70mm的范围内。
9、按权利要求1、6与7中的任一项所述的高尔夫球棒头,其特征在于:上述中空的空腔(38)具有开口的下方端,底板(48)横过该空腔(38)的开口的下方端固定在主体部(10)的下部壁上,对该底板(48)同金属坯料(12)一起切削它们的交界周围,以便在球棒头的周围形成连续圆滑的表面。
10、一种高尔夫球棒的制作方法,其特征在于:
通过对锻造的单个金属坯料(12)进行切削,形成具有前部打球面(54)、后部壁(70)、上部壁、下部壁、跟部(66)与趾部(68)的主体部(10);
切削成在上述主体部(10)的下部壁上允许固定另成一体的底板(48)的凹下部(18);
对上述金属坯料(12)由其凹下部(18)向主体部内方进行切削,形成在上述凹下部(18)上开口的中空的空腔(38);
将另成一体的底板(48)固定在上述凹下部(18)上,封闭上述中空的空腔(38)的开口部,对该底板(48)与金属坯料(12)的交界周围一起进行切削,以便在球棒头的周围形成连续圆滑的表面。
11、一种高尔夫球棒的制造方法,其特征在于:
通过对锻造的单个金属坯料(12)进行切削,形成具有前部打球面(54)、后壁部(70)、上壁部、下壁部、跟部(66)与趾部(68)的主体部(10);
切削成在上述主体部(10)的下部壁上允许固定另成一体的底板(48)的凹下部(18);
对上述金属坯料(12)由其凹下部(18)向主体部内方进行切削,形成在上述凹下部(18)上开口的中空的空腔(38),同时通过对该中空的空腔(38)进行切削的程度的增加或减少,以使制作完成后的球棒头获得所希望的重量分配;
将另成一体的底板(48)固定在上述凹下部(18)上,封闭上述中空的空腔(38)的开口部,对该底板(48)与金属坯料(12)的交界周围一起进行切削,以便在球棒头的周围形成连续圆滑的表面。
12、按权利要求10或11所述的高尔夫球棒的制作方法,其特征在于,包括下述工序:
对各球棒头的前部端进行切削,作成具有所希望的外突部与隆起部的打球面(54),并且对于每种不同的球棒头要改变其切削,以便作成具有不同的外突部与隆起部特性的球棒头。
13、按权利要求10或11所述的高尔夫球棒的制造方法,其特征在于:锻造的金属坯料(12)的材料是铝合金。
14、按权利要求10或11所述的高尔夫球棒的制作方法,其特征在于:在锻造金属坯料(12)时,在该坯料(12)的前端部制成突出的夹持用的突出部(22),另外,在切削中空的空腔(38)时,以夹持用具(36)来夹持上述突出部(22)。
15、按权利要求10或11所述的高尔夫球棒的制作方法,其特征在于:切削金属坯料(12)的过程是用计算机控制的切削机床头进行。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/159,738 US5527034A (en) | 1993-11-30 | 1993-11-30 | Golf club and method of manufacture |
US159,738 | 1993-11-30 |
Publications (1)
Publication Number | Publication Date |
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CN1107073A true CN1107073A (zh) | 1995-08-23 |
Family
ID=22573805
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN94119803A Pending CN1107073A (zh) | 1993-11-30 | 1994-11-25 | 高尔夫球棒及其制造方法 |
Country Status (7)
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US (2) | US5527034A (zh) |
JP (1) | JPH07148287A (zh) |
KR (1) | KR950013536A (zh) |
CN (1) | CN1107073A (zh) |
AU (1) | AU1181695A (zh) |
TW (1) | TW303303B (zh) |
WO (1) | WO1995015198A1 (zh) |
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- 1994-11-18 AU AU11816/95A patent/AU1181695A/en not_active Abandoned
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CN100425306C (zh) * | 2000-08-04 | 2008-10-15 | 卡拉韦高尔夫公司 | 高尔夫球杆 |
CN109701235A (zh) * | 2019-02-25 | 2019-05-03 | 四川宇钛体育用品有限公司 | 一种高尔夫铁杆杆头的制造方法 |
Also Published As
Publication number | Publication date |
---|---|
AU1181695A (en) | 1995-06-19 |
KR950013536A (ko) | 1995-06-15 |
WO1995015198A1 (en) | 1995-06-08 |
US6305063B1 (en) | 2001-10-23 |
US5527034A (en) | 1996-06-18 |
TW303303B (zh) | 1997-04-21 |
JPH07148287A (ja) | 1995-06-13 |
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