TW455498B

TW455498B - Iron golf club head, iron golf club, and iron golf club set

Info

Publication number: TW455498B
Application number: TW089110116A
Authority: TW
Inventors: Mototaka Iwata; Koji Sakai; Hiroshi Nagao
Original assignee: Mizuno Kk
Priority date: 1999-06-25
Filing date: 2000-05-25
Publication date: 2001-09-21
Also published as: JP2001009071A; CA2339989A1; EP1116504A1; CN1314823A; EP1116504A4; WO2001000283A1

Abstract

An iron golf club head (1) comprising three principal axes of inertia (I1, I2 and I3) passing the gravity center thereof, wherein an angle θ between the axis I1 on which a moment of inertia about a principal axis of the inertia among three principal axes of inertia becomes maximum and the normal vector (101) of a face plane (3f) passing the gravity center thereof is at least 10 degrees and not more than 90 degrees.

Description

455493455493

五、發明說明（i) 技術範_ 本發明係關於一般性之高爾夫球鐵桿 a 桿及高爾夫球鐵桿組。尤有關一種可有效 ^夫球鐵之飛行，離之參差不一現象之高爾夫球鐵桿頭、二2球時鐵桿及高爾夫球鐵桿組者。阿爾夫球背景技術考慮到慣性橢圓體的高爾夫球桿頭係記載於〃 5-57034號公報。此公報所記載之高爾夫球桿頭係、藉^平加慣性主轴方向之重量分配而將高爾夫球桿頭之増加抑低至最小限度者。 ΐ之增又’特開平9-149954號影於平面上時之角度而提高的高爾夫球桿頭。高爾夫球鐵桿之目的係體之飛行距離與方向者β因球體之方向與飛行距離為不甚佳。係開示有藉由規定慣性主抽^ 飛行距離與飛行方向之安定性為正確地捕抓打者之目的之球此’因打點位置參差不齊而使安定時，則於平標準方面將不為此，本發明之目的在於提供一種飛行距離及方向性為甚安定之高爾夫球鐵桿頭、高爾夫球鐵桿及高爾夫球桿組。發明之概述於習知技術中並未有考慮慣性主軸與最佳打擊面之法V. Description of the invention (i) Technical scope_ This invention relates to general golf irons a and golf irons. In particular, it is about a golf iron head that can effectively fly golf irons, which are different from each other, a two-two iron and a golf iron group. BACKGROUND OF THE INVENTION A golf club head system in consideration of an inertial ellipsoid is described in Japanese Unexamined Patent Publication No. 5-57034. The golf club heads described in this publication are those that minimize the increase of the golf club head by reducing the weight distribution in the direction of the inertial principal axis. ΐ 之增 Also ‘Kai 9-149954’ golf club head with an increased angle when it is reflected on a flat surface. The goal distance and direction of the golf iron iron is β because the direction and flight distance of the ball are not very good. It is shown that the ball with the inertia main draw ^ stability of the flight distance and direction of flight is the purpose of correctly catching the attacker's ball. This' stabilization time due to uneven dot positions, will not do so in terms of leveling An object of the present invention is to provide a golf iron head, a golf iron, and a golf club set whose flight distance and directionality are stable. SUMMARY OF THE INVENTION There is no method of considering the inertia main axis and the best striking surface in the conventional technology.

第4頁五、發明説明（2) 線向量所形成之角度的物品。將具有複雜形狀之高爾夫球桿頭之潰性橢圓體表現，而將該慣性主軸與最佳4 ‘矩以等值之慣所形成之角度設定成較大，藉此，体擊面之法線向量性矩變大，而可有效地減少打球睥 '打球方向之慣 τ〈脫行距離穴。雕之不均形情惟，現在一般使用之高爾夫球鐵軸周圍之慣性矩或慣性主軸之投影什艰雖考慮到一個性主抽與最佳打擊面之法線向量^形成之未考慮到慣 :般’所謂法線向量者係指相對於某ίΪ。之向篁’包含於平面内之向量此 …、之垂直方向於零= 量與别34法線向量之内積係等慣㈣®肖之絲之U # 小之平方根之倒數表示。亦釉鬥圍之杈性矩之大將變大。即，慣性橢圓體越小則慣性矩自單方向受力之場合之圓體之重心之將其方向以作之大小係以通過慣性橢之切斷橢圓之面積表現。，'、、、線向量之平面所切斷之時亦即’前述面積越小則為減小前述面積，須 f於其方向之慣性矩越大。周圍之慣性矩為最大之Φ ^將二根慣性主軸中之慣性主轴擊面之中心）上之接面之^4與最佳打擊面之囷心（最佳打亦即，因相對於施力Λ向量所形成之角度加大。位置多少有些差異，打去 β之慣性矩變大，故即使打球亦可補抓到其目的之球體之飛行五、發明說明（3) 距離及方向◊為此，本發明藉由將高爾夫球鐵桿桿頭之慣性主軸與最佳打擊面之法線向量所形成之角度設定成較大’乃可提供飛行距離及方向性較為安定之高爾夫球鐵桿桿頭。本發明之發明人經過對高爾夫球桿之飛行距離及飛球方向進行種種檢討係得到以下之結論。亦即，於上述之習知技術中雖實施有某程度之改善’但並非針對慣性橢圓體之平面上之投影，而係補抓其三次元性’而藉由將慣性主轴之某轴作某種傾斜之特定化達到有效之改善效果者。因此在本發明中係藉由設定習知技術所未曾開示過的高爾夫球桿之較佳之慣性主轴之三次元性傾斜與控制傾斜之柏而提供一種對於打球之參差情形可有效地抑制飛行距離及打球方向之不均一情形的高爾夫球桿頭者。目前，高爾夫球桿頭主要係考慮最佳打擊區而設惟，有以於腳跟方向為水平之任意之一轴之慣性矩之大丨表示最佳打擊區之情形。惟，其並未考慮到存在於= 空間之慣性橢圓體之朝向。 r π、一人疋於本發明中，藉由使高爾夫球體之相互垂直相交之慣性主軸中之一軸盘圓頭重心之最佳打擊面之法線向量所形成之較桿 :夫=飛行距離及方向性為甚安定之高爾夫球桿=高Page 4 V. Description of the invention (2) An article formed by a line vector at an angle. The ellipsoid of a golf club head with a complicated shape is expressed, and the angle formed by the inertia principal axis and the optimal 4 'moment with an equivalent inertia is set to be large, whereby the normal of the striking surface The vector moment becomes larger, which can effectively reduce the inertia τ in the playing direction of the ball 脱脱 the distance of the trip. However, the inertia moment around the iron shaft of the golf ball or the projection of the inertia main shaft is generally difficult to take into account. However, the normal vector of the main draw and the best strike surface is not considered. : General 'The so-called normal vector means relative to a certain Ϊ. The direction 篁 ’contains the vector in the plane,…, the vertical direction at zero = the product of the inner product of the 34 normal vector, etc. The inverse of the square root of U # 肖之丝。 Also, the size of the moment of the glazed bucket will increase. That is, the smaller the inertial ellipsoid, the smaller the moment of inertia when the force is exerted from one direction. The direction of the center of gravity of the circle is expressed by the area of the ellipse cut by the inertial ellipsoid. When the plane of the ',,, and line vectors is cut off, that is,' the smaller the aforementioned area is, the smaller the aforementioned area is, the greater the moment of inertia in its direction is. The surrounding moment of inertia is the largest Φ ^ the center of the inertial spindle hitting surface of the two inertial spindles ^ 4 and the center of the best striking surface (the best hit is because of the relative force The angle formed by the Λ vector is increased. The position is somewhat different, and the moment of inertia of β is larger, so even if you play, you can catch the flight of the sphere. 5. Explanation of the invention (3) Distance and direction By setting the angle formed by the inertial main axis of the golf iron head and the normal vector of the best striking surface to be larger, the present invention can provide a golf iron head with a more stable flight distance and directionality. The inventor of the invention has made the following conclusions after conducting various reviews on the flying distance and flying direction of the golf club. That is, although some improvement has been implemented in the above-mentioned conventional technology, it is not for the inertial ellipsoid. The projection on the plane is to compensate for its three-dimensionality, and to achieve an effective improvement effect by specializing a certain axis of the inertial main axis. Therefore, in the present invention, it is known by setting The three-dimensional tilt of the preferred inertial main shaft of the golf club that has not been disclosed in the technology and the control of the tilting cypress provide a golf club head that can effectively suppress the unevenness of the flying distance and the direction of the golf ball when the ball is uneven. At present, golf club heads are mainly designed in consideration of the best hitting area, and there is a case where the moment of inertia of any axis horizontal to the heel direction is the best hitting area. However, it does not Considering the orientation of the inertial ellipsoid existing in = space. R π, one person stunned in the present invention, by normalizing the normal surface of the best striking surface of the center of gravity of one of the inertia spindles of the inertial principal axis that intersects the golf ball perpendicular to each other. Vector comparison rod formed by the golfer: the golf club with high flight distance and directionality = high

45 54 9 B 五、發明說明（4) 容易回轉於慣性矩較小之轴周圍，故相對於慣性矩最小之轴13之方向所承受之力矩為最難回轉。根據以上之知見所完成之本發明之高爾夫球鐵桿桿頭係具有通過重心之三根慣性主轴。而三根慣性主轴中慣性主轴周圍之慣性矩為最大之軸與通過重心之最佳打擊面之法線向量所形成之角度6»係10度以上90度以下。較佳者為使角度Θ為30度以上90度以下。而更佳者為使角度<9為50度以上90度以下。又，更佳者為使角度Θ為70度以上90度以丁。 θ又’依本發明之高爾夫球鐵桿係包括有上述高爾夫球鐵桿桿頭與一方端接續於高爾夫球鐵桿椁頭之桿體。依本發明之高爾夫球鐵桿組係包括有識別^號^同之 ^高爾夫球鐵桿’而該等高爾夫球鐵桿係具有複數之桿桿ΐΙίΪ鐵桿桿頭與一方端分別接續於各高爾夫球鐵圖式簡單說明第1圖為本發明之高爾Α球鐵桿頭之座圖。第2圖為本發明之高爾夫球鐵桿頭之慣主^示意第3圖A、B、C為本發明之高面之概念示意圖。球鐵&頭之切斷橢圓第4圖為本發明之慣性主轴圈。傾斜角度之概念示意 4554 五、發明說明（4) 容易回轉於慣性矩較小之軸周圍，故相對於慣性矩最小之轴I3之方向所承受之力矩為最難回轉。根據以上之知見所完成之本發明之高爾夫球鐵桿桿頭係具有通過重心之三根慣性主轴.而三根慣性主軸中慣性主轴周圍之慣性矩為最大之轴與通過重心之最佳打擊面之法線向量所形成之角度θ係〗〇度以上90度以下。較佳者為使角度Θ為30度以上90度以下。而更佳者為使角度Θ為50度以上9G度以下。又更佳者為使角度0為70度以上9〇度以下。又’依本發明之高爾夫鐵桿桿頭與一方端接續於高依本發明之高爾夫球鐵複數之高爾夫球鐵桿，而該上述高爾夫球鐵桿桿頭與一桿桿頭之桿體。球鐵桿係包括有上述高爾夫球爾夫球鐵桿桿頭之桿體。桿組係包括有識別編號不同之等高爾夫球鐵桿係具有複數之方端分別接續於各高爾夫球鐵圖式簡單說明之座標之示意圖。之慣性主柏之示意第1圖為本發明之高爾夫球鐵桿第2圖為本發明之高爾夫球鐵桿頌之问爾夫球鐵桿頭之切斷橢圓主Ή之傾斜开两度之概念示意第3圖A、B、C為本發明面之概念示意圖。第4圖為本發明之慣性圖。45 54 9 B V. Description of the invention (4) It is easy to turn around the axis with a small moment of inertia, so it is the most difficult to rotate in the direction of the axis 13 relative to the axis with the smallest moment of inertia. According to the above knowledge, the golf iron head of the present invention has three inertia main shafts passing through the center of gravity. Among the three inertial main axes, the angle formed by the axis with the largest moment of inertia around the main axis of inertia and the normal vector passing through the center of gravity's best hitting surface is 6 10 degrees or more and 90 degrees or less. It is preferable that the angle Θ is 30 degrees or more and 90 degrees or less. More preferably, the angle < 9 is 50 degrees or more and 90 degrees or less. Furthermore, it is more preferable that the angle Θ is set to 70 degrees or more and 90 degrees or less. θ 'The golf iron system according to the present invention includes the above-mentioned golf iron head and a shaft body connected to one end of the golf iron head. The golf iron set according to the present invention includes the identification ^ number ^ the same ^ golf irons' and these golf irons have a plurality of clubs ΐΙίΪ iron heads and one end are respectively connected to each golf iron pattern Brief description. Fig. 1 is a seat view of a Gore A ductile iron head according to the present invention. Fig. 2 is a schematic illustration of a conventional master of a golf iron head according to the present invention. Fig. 3 A, B, and C are schematic conceptual views of the high side of the present invention. Ductile iron & head cut ellipse Figure 4 shows the inertial spindle of the present invention. Conceptual illustration of the inclination angle 4554 V. Description of the invention (4) It is easy to turn around the axis with a small moment of inertia, so it is the most difficult to rotate in the direction of the axis I3 relative to the axis with the smallest moment of inertia. According to the above knowledge, the golf iron head of the present invention has three inertia main shafts passing through the center of gravity. Among the three inertial main shafts, the axis with the largest moment of inertia around the inertia main shaft and the normal line of the best striking surface passing through the center of gravity. The angle θ formed by the vector is 0 ° to 90 °. It is preferable that the angle Θ is 30 degrees or more and 90 degrees or less. More preferably, the angle Θ is set to 50 degrees or more and 9 G degrees or less. Still more preferably, the angle 0 is 70 degrees or more and 90 degrees or less. Further, the golf iron head according to the present invention is connected with one end to a plurality of golf irons according to the golf iron according to the present invention, and the golf iron head described above and a shaft body of a club head. The iron club includes a shaft body of the golf golf club head described above. The club set includes a plurality of golf irons having different identification numbers, and a plurality of square ends are successively connected to the coordinates of each golf iron. The schematic diagram of the inertia master cypress 1 is the golf iron of the present invention. The second diagram is the concept of the golf club irons of the golf club. The elliptical main shaft of the ellipse is cut off by two degrees. Figures A, B, and C are conceptual diagrams of the aspects of the invention. Fig. 4 is an inertia diagram of the present invention.

455498 五發明說明（5) 一第5圖為分割本發明有關之高爾夫球鐵不意圖。 τ 頭之狀態之第6圖為依本發明之實施例1之高圖。阳大坏織柃碩之立體第7圖為依本發明之其他實施例之高爾夫球鐵桿頭之卫^體圖0 佳打擊面之圖心上之接面爾夫球鐵桿頭之立體圖。符號說明 1 桿頭 la 頭本體 2 桿體***部 3 最佳打擊面部 3b 後部 3c 圖心 3f 最佳打擊面 4 XY平面 5 Y2平面 6 與YZ平面5平行之面 7 假想切斷線 8a、 8 b 加重構件 10 慣性橢圓體455498 5 Description of the invention (5)-Figure 5 shows the intention to divide the golf iron related to the present invention. Fig. 6 of the state of the τ head is a high map of Embodiment 1 according to the present invention. Three-dimensional view of the big and bad weave. Figure 7 is a perspective view of a golf iron head in accordance with other embodiments of the present invention. DESCRIPTION OF SYMBOLS 1 club head la main body 2 club body insertion part 3 best hitting face 3b rear part 3c figure center 3f best hitting face 4 XY plane 5 Y2 plane 6 plane parallel to YZ plane 5 7 virtual cutting line 8a, 8 b Weighting member 10 Inertial ellipsoid

第8頁 45549^ 五、發明說明（6) 60 地面 61 接面 62 交線 70 桿體 80 高爾夫球鐵桿 101 最佳打擊面之法線向量 102 角度0為30度之範圍 103 角度0為60度之範圍 al-i2 切割部份 G 重心 I, ' 12 ' 13 慣性主軸實施發明之最佳型態第1圖中，垂直於地面6〇之通過重心g之軸設為z軸。而與最佳打擊面3f之圖心（中心）3c之接面η和地面60之交線62為平行且與z轴垂直且通過重心G之軸設為X軸。而與X 軸及Z轴兩者垂直且通過重心G之轴設為Y軸。如第2圖所示，與最佳打擊面3f之圖心3c之接面及地片之交線為平行且通過重心G之面之法線向®係设為 f(l，m，n)T，而計算下述各向量。 fi〇i» mi, n,)T = f xZ(〇, 〇, 1)τPage 8 45549 ^ V. Description of the invention (6) 60 Ground 61 Junction 62 Crossing line 70 Shaft 80 Golf iron 101 Normal vector of the best hitting surface 102 Angle 0 is in the range of 30 degrees 103 Angle 0 is 60 degrees The range al-i2 cutting part G center of gravity I, '12' 13 The best form of implementing the invention of the inertia main axis In the first figure, the axis passing through the center of gravity g perpendicular to the ground 60 is set as the z-axis. The line 62 that intersects the center η of the center of the figure 3c of the best striking surface 3c and the ground 60 is parallel and perpendicular to the z-axis and passes through the center of gravity G as the X-axis. The axis perpendicular to both the X-axis and the Z-axis and passing through the center of gravity G is set as the Y-axis. As shown in Figure 2, the line of intersection with the center of the figure 3c of the best strike surface 3f and the ground is parallel and passes through the normal direction of the surface G through the center of gravity G is set to f (l, m, n) T and calculate the following vectors. fi〇i »mi, n,) T = f xZ (〇, 〇, 1) τ

f 2 ( “，，η2 )τ = f 】X f (π3, n3)T = f, X ^2 其中X表示外積。f 2 (“,, η2) τ = f] X f (π3, n3) T = f, X ^ 2 where X represents the outer product.

45 54 9 S 89110116 ___案號五、發明說明（7) 其次，如第3圖A所示，將與最佳打擊面3f之圖心上之接面和地面之交線為平行且通過重之軸設為^軸。而將與最佳打擊面3f之圖心上之接線為平行且與為垂直之軸設為/3軸。而將與α軸及沒軸垂直之軸設為7轴。藉由α，石，r座標系變換成Χ，Υ，Ζ座標系之場合係以下式表示。 Χ= !ι · α +12 ·泠十 13 · r Y = roi · a+m2 · /9+m3 · γ ... (2) Z = n[ · α +n2 · /5 +n3 · γ 在此’將A!，A2，Ag設為X，Y，z軸相關之慣性矩，並將a|2 設為YZ平面及χζ平面有關之慣性乘積，將‘設為γζ平面及 ΧΥ平面有關之慣性乘積，而將Α23設為χζ平面及χγ平面有關之慣性乘積時，可得到以下之關係。 Α, · Χ2 + Α2 · ΥΗΑ3 · ΖΗ2 · Α12 · X · Υ + 2 · Α13 · X · Ζ + 2 . △23 · Υ · Ζ = 1 …（3 ) 式（3 )所表現之橢圓體係稱為慣性橢圓體。此者係表示各方向之慣性阻抗之大小。將式（2 )代入式（3 )中而將r 之項設為0時則於切斷橢圓面上可求得式（4)。 (A! li2 + A21DJH A3 njH A12 li nii + A13 1j ^ + Aagin, ^ ) a2i (A】122 + A3 m22 + A3n22 + A12 l2m2 + A13 l3n2 + A23m2n2) + (A, lj 12 + a2 nij ra2 + A3 n, n2 + A121, m2 + A,212 rai + ^I3 lt n2 + ^i3 ^n,+Α23Π1, n2+A23m2n1 ) a β = \ ---(4) 此切斷面之大小係表現出在此面上之物體之回轉容易度之表示用之慣性阻抗之大小。又，前述切斷面係表示該45 54 9 S 89110116 ___Case No. V. Description of the Invention (7) Secondly, as shown in Figure 3A, the line of intersection with the ground on the center of the best strike surface 3f and the ground shall be parallel and pass through The axis is set to ^ axis. And the line parallel to the center of the best hitting surface 3f and the axis perpendicular to it is set to / 3 axis. The axis perpendicular to the α axis and the non-axis is set to 7 axes. When the coordinate system of α, stone, and r is transformed into the coordinate system of X, Y, and Z, it is expressed by the following formula. Χ =! Ι · α +12 · Ling Shi 13 · r Y = roi · a + m2 · / 9 + m3 · γ ... (2) Z = n [· α + n2 · / 5 + n3 · γ in This 'sets A !, A2, Ag as the inertia moments related to the X, Y, and z axes, and sets a | 2 as the inertial product related to the YZ plane and the χζ plane, and sets' to be related to the γζ plane and the XY plane. The inertial product, and when A23 is set to the inertial product related to the χζ plane and the χγ plane, the following relationship can be obtained. Α, · χ2 + Α2 · ΥΗΑ3 · ZnΗ2 · Α12 · X · Υ + 2 · Α13 · X · Zn + 2. △ 23 · Υ · Zn = 1… (3) The ellipse system represented by formula (3) is called Inertial ellipsoid. This is the magnitude of the inertial impedance in each direction. When equation (2) is substituted into equation (3) and the term of r is set to 0, equation (4) can be obtained on the cut ellipse. (A! Li2 + A21DJH A3 njH A12 li nii + A13 1j ^ + Aagin, ^) a2i (A) 122 + A3 m22 + A3n22 + A12 l2m2 + A13 l3n2 + A23m2n2) + (A, lj 12 + a2 nij ra2 + A3 n, n2 + A121, m2 + A, 212 rai + ^ I3 lt n2 + ^ i3 ^ n, + Α23Π1, n2 + A23m2n1) a β = \ --- (4) The size of this section is shown The ease of rotation of the object on this surface indicates the magnitude of the inertial impedance. The above-mentioned cut surface indicates that

2075-3218-PFLptc 第10頁 455498 五、發明說明（8) 面之垂直方向之慣性阻抗。又，如第3圖A至第3圖C所示，此切斷面之形狀因係立體之慣性橢園體之切斷面故可形成為平面橢圓者已十分清楚。其次說明有關本發明之具體實施型態。本發明之實施型態之高爾夫球鐵桿頭、高爾夫球鐵桿及高爾夫球鐵桿組係以下述之要素為其構成要素。第4圖係揭示重心周圍之三根慣性主軸中之慣性主軸周圍之慣性矩為最大之軸與通過重心G之最佳打擊面之法線向量101所形成之角度6»。實線102為揭示角度<9為30度之範圍。實線103係揭示角度θ為60度之範圍。如第8圖所示’於高爾夫球鐵桿桿頭上，通過重心G之三根慣性主轴 I〗、“及I3中，慣性主軸之周圍之慣性矩為最大之軸L與通過重心G之最佳打擊面3f之法線向量1〇ι所形成之角度0為 10度以上90度以下。又，更佳者為使角度θ為3〇度以上90 度以下°又’再更佳者為使角度0為50度以上90度以下。又’更佳者為使角度0為7〇度以上9〇度以下。 g ^又’依本發明之高爾夫球鐵桿80係具備有高爾夫球鐵才千杯頭1與一方端接續於前述高爾夫球鐵桿桿頭1之桿體 70，。依^發明之高爾夫球鐵桿組係具備有識別編號為不同之複數尚爾夫球鐵桿8〇 ’該等高爾夫球鐵桿8〇係包括有上述之高爾夫球鐵桿桿頭1與一方端分別接續各高爾夫球鐵桿桿頭1之複數之桿體7 〇。關於本發明有關之高爾夫球鐵桿桿頭兹根據圖示作說2075-3218-PFLptc Page 10 455498 5. Description of the invention (8) The inertial impedance in the vertical direction of the plane. In addition, as shown in FIGS. 3A to 3C, it is clear that the shape of this cut surface can be formed into a flat ellipse because it is a cut surface of a three-dimensional inertial ellipsoid. The following describes specific implementation modes of the present invention. The golf iron head, the golf iron, and the golf iron set according to the embodiment of the present invention include the following elements as constituent elements. Figure 4 reveals the angle 6 »formed by the axis with the largest moment of inertia of the three inertial principal axes around the center of gravity and the normal vector 101 passing through the optimal striking surface of the center of gravity G. The solid line 102 is a range where the disclosure angle < 9 is 30 degrees. The solid line 103 indicates a range where the angle θ is 60 degrees. As shown in Figure 8, 'On the golf iron head, the three inertia major axes I passing through the center of gravity G], "and I3, the axis L with the largest moment of inertia around the inertia major axis and the best striking surface passing through the center of gravity G The angle 0 formed by the normal vector 3m of 3f is 10 degrees or more and 90 degrees or less. It is more preferable that the angle θ is 30 degrees or more and 90 degrees or less. 50 degrees or more and 90 degrees or less. It is more preferable that the angle 0 be 70 degrees or more and 90 degrees or less. G ^ Also, the golf iron 80 according to the present invention is equipped with a golf iron head 1000 and One end is connected to the shaft 70 of the golf iron head 1 described above. The golf iron set according to the invention is provided with a plurality of golf clubs with different identification numbers. The golf irons 80 series It includes the above-mentioned golf iron head 1 and a plurality of shaft bodies 7 respectively connected to each of the golf iron heads 1 at one end. The golf iron head according to the present invention will be described with reference to the drawings.

第11頁 455498Page 455498

五、發明說明（9) + 5圖係將高爾夫球桿頭分割以將慣性主軸之方向設定=的，方向用之立體圖。亦即，—第5圖所示，將高爾夫球鐵桿頭1區分成桿體***部2與最佳打擊面部^，接著以通過最佳打擊面部3之圖心3c之以平面4妨平面5之假想切斷面7將高爾夫球鐵桿3切割而形成四分割狀。又，以通過四分割之構件之γ轴中心之與γζ平面5相平行之面6 及假想切斷線7將高爾夫球鐵桿頭丨切割，將所形成之九分割之構件分別以a〜I表示。又將分割成九個的各構件於最佳打擊面3 f侧及後部 lb側以假想切斷線7二等分，合計分割成18個構件。該各個構件部份係以al〜i 2表示。第6圖係揭示依本發明之實施例1之高爾夫球鐵桿頭。亦即於高爾夫球鐵桿頭丨之部份c】與部份i 1配置由比重較高之金屬所構成之加重構件8a(由不銹鋼合金、鈕合金或鎢合金等所構成）。藉此，慣性主轴周圍之慣性矩為最大之轴與最佳打擊面3f之法線向量所形成之角度Θ係如表1所不般可設定成本發明之目的值。又，表1為慣性主軸L與最佳打擊面3f之法線向量所形成之角度。表1 習知之高_夫球鐵捍實施例1之高爾夫球鐵择角度0 8.9度 12.6 度5. Description of the invention (9) + 5 is a perspective view of the golf club head divided to set the direction of the inertial main axis =. That is, as shown in FIG. 5, the golf iron head 1 is divided into a shaft insertion portion 2 and a best hitting face ^, and then the center of the figure 3c passing the best hitting face 3 and the plane 4 and the plane 5 The imaginary cut surface 7 cuts the golf iron 3 into a quadrant shape. In addition, the golf iron head is cut with a plane 6 and a virtual cutting line 7 passing through the γ-axis center of the γ-axis center of the four-sectioned member, and the formed nine-sectioned members are represented by a to I, respectively. . Each component divided into nine is divided into two equal parts on the optimal striking surface 3 f side and the rear lb side with an imaginary cutting line 7, and is divided into 18 components in total. The respective component parts are represented by al to i 2. Fig. 6 shows a golf iron head according to Embodiment 1 of the present invention. That is, part c] and part i 1 of the golf iron head are provided with a weighting member 8a (consisting of a stainless steel alloy, a button alloy, or a tungsten alloy) composed of a metal having a higher specific gravity. Thus, the angle θ formed by the axis of inertia around the main axis of inertia being the largest and the normal vector of the best strike surface 3f is as shown in Table 1, and can be set as the objective value of the present invention. Table 1 shows the angle formed by the inertia main axis L and the normal vector of the optimal striking surface 3f. Table 1 Known height _ golf ball defending iron selection angle of golf ball in Example 1 0 8.9 degrees 12.6 degrees

45 54 98 五、發明說明（ίο) 頭。 .μ 11 ^ t ^ ίτ ^ δ 平面5之假想_ U & Α 心3e之χγ平面4纽呵將向爾夫球鐵桿頭1切割而形成四分割二接者u與通過四分割之構件之γ軸方向中心之^平面5 ^平:^面6之假想切斷面7將高爾夫球鐵桿頭1切割而分 J。接者將分割之各構件以假想切斷面7切割而二等分而，各個構件作為最佳打擊面3f側之構件與後職側之構件。如此’將高爾夫球鐵桿頭1分割成全部共18個構件，並將各個構件設成部份al〜i2。於部份al與部份dl與部份 h2上配置由比重較低之金屬所構成之加重構件8b(由鋰合金、鈹合金、鋁合金或鈦合金等所構成）。藉此，慣性主軸周圍之慣性矩為最大之主軸與最佳打擊面3丨之法線向量之角度6>係如表2所示般可設定成本發明之目的之範圍内。又’表2為慣性主轴I!與最佳打擊面3f之法線向量所形成之角度。表2 ---— 習知之高爾夫球鐵桿實施例2之尚爾夫球鐵棵 8.9度 _ 32.8 度45 54 98 V. Description of invention (ίο) Head. .μ 11 ^ t ^ ττ ^ δ Hypothesis of plane 5 U & Α center 3e χγ plane 4 Niu will cut to the golf club head 1 to form a quadruple joint u and a member that passes through the quadruple ^ plane 5 in the center of the γ axis ^ flat: ^ virtual hypothetical cutting plane 7 of plane 6 cuts the golf iron head 1 and divides it into J. Then, the divided components are cut in half by the imaginary cutting surface 7, and each component is used as a component on the best striking surface 3f side and a component on the rear duty side. In this way, the golf iron head 1 is divided into a total of 18 components, and each component is set into parts al to i2. A weighting member 8b (consisting of a lithium alloy, a beryllium alloy, an aluminum alloy, or a titanium alloy) composed of a metal having a relatively low specific gravity is disposed on the portion al, the portion dl, and the portion h2. As a result, the angle 6 of the principal axis of inertia around the inertia main axis and the normal vector of the best striking surface 3, as shown in Table 2, can be set within the scope of the purpose of the present invention. Table 2 also shows the angle formed by the inertial principal axis I! And the normal vector of the optimal striking surface 3f. Table 2 ----- Known golf irons Example 2 Shaft irons 8.9 degrees _ 32.8 degrees

又’關於由比重較南之金屬或比重較低之金屬所構成之加重構件8a及8b之配置方法’可於高爾夫球鐵桿頭】之第13頁 455498 五、發明說明（11) 頭本體la上形成凹部’而於該凹部嵌合壓入加重構件8&及 8b。又，於該四部焊接或塗鐶熔接以加重構件8a及81)亦 -〇表3為一般的中級者1 〇名使用實施例1之高爾夫球鐵桿實行打球之結果。不明習知之球桿之飛行距離較安定本發明之球桿之飛行距離較安定 2名 7名 1名本發明之高爾夫球鐵桿頭1係將三根慣性主軸中之慣性主軸周圍之慣性矩為最大之主軸與通過重心之最佳打擊面3f之法線向量所形成之角度設定成較大。高爾夫球鐵桿頭1之慣性主軸周圍之慣性矩為最大之主軸大都朝向於球體之飛球線方向，將慣性橢圓體1 〇以與通過重心之最佳打擊面相平行之平面切斷時之切斷橢圓之面積大略變成最大。一般，慣性橢圓體1 〇之主軸之長度係以其軸周圍之慣性矩之大小之平方根之倒數表示。亦即，慣性橢圓體丨〇越小則慣性矩越大。自單向受力之場合之慣性矩之大小可用將慣性橢圓體 1 0以通過重心G且將受力方向以作為法線向量之平面作切斷時之切斷橢圓之面積表示。亦即此面積越小則相對於其 mm 第14頁 45549¾ 五、發明說明（12) 方向之慣性矩越大β 欲減小此面積，須將三根慣性主軸中之慣性主轴周圍之慣性矩為最大之主軸與和最佳打擊面3f之圖心3c上之接面為相平行之面之法線向量所形成角度設成較大。亦即’因相對於施力方向之慣性矩變大故即使打球位置·^少有點差異但亦可容易地補抓到打者之目的之球體之飛行距離及方向。又，存在於空間之垂直相交之三根軸一般針對某向量並未形成大於90度之值故三根慣性主軸中慣性主轴周圍之慣性矩最大之軸與最佳打擊面之法線向量所形成之角度Θ 係30度以上90度以下’更佳者為5〇度以上9〇度以丁，更佳者為70度以上90度以下之值，如此則相對於施力方向之慣性矩變大，效果較佳。依本發明之高爾夫球鐵桿頭1，如上述，其慣性主軸周圍之慣性矩為最大之軸與最佳打擊面3f之圖心上之接面之法線向量（最佳打擊面3f之法線向量）所形成之角度設成較大時可使打球時之飛行距離及方向性較安定。其他，本發明之高爾夫球鐵桿組藉由使慣性主軸周圍之慣性矩為最大之轴與最佳打擊面3f之圖心3c上之接面之法線向量所形成之角度為較大可使高爾夫球桿組内之各識別編號之高爾夫球桿之固有之打球之飛行距離較安定，同時亦可使打球之方向性較安定。因此可提供對高爾夫球選手而§具有安定感之高爾夫球桿組。本發明之尚爾夫球鐵桿頭如上述藉由使慣性主軸周圍Also 'About the method of disposing the weighting members 8a and 8b composed of a metal with a lower specific gravity or a metal with a lower specific gravity' can be used on a golf iron head] page 13 455498 V. Description of the invention (11) The head body la A recessed portion 'is formed, and the weighting members 8 & and 8b are fitted into the recessed portion. In addition, the four parts are welded or coated and welded to increase the weight of the members 8a and 81). Table 3 shows the results of performing a game using the golf irons of Example 1 by 10 ordinary intermediate people. The flight distance of the unknown club is more stable. The flight distance of the club of the present invention is more stable. 2 7 1 The golf iron head of the present invention 1 has the largest moment of inertia around the inertia spindle among the three inertial spindles. The angle formed by the main axis and the normal vector passing through the optimal striking surface 3f of the center of gravity is set to be large. The major axis of inertia around the inertia major axis of the golf iron head 1 is most oriented toward the flying ball line of the sphere, and is cut when the inertial ellipsoid 1 is cut in a plane parallel to the optimal striking surface passing through the center of gravity. The area of the ellipse has roughly become the largest. Generally, the length of the major axis of the inertial ellipsoid 10 is expressed by the inverse of the square root of the magnitude of the moment of inertia around its axis. That is, the smaller the inertial ellipsoid, the larger the moment of inertia. The magnitude of the moment of inertia in the case of a unidirectional force can be expressed by the area of the cutting ellipse when the inertial ellipsoid 10 passes through the center of gravity G and the direction of the force is cut by a plane that is a normal vector. That is, the smaller the area is, relative to its mm. Page 14 45549¾ V. Description of the invention (12) The greater the moment of inertia in the direction β To reduce this area, the moment of inertia around the inertia spindle among the three inertia spindles must be maximized The angle formed by the principal axis and the normal vector of the plane parallel to the center of the figure 3c of the best striking surface 3f is set to be larger. In other words, the moment of inertia with respect to the direction of force application becomes large, so even if the position of the ball is slightly different, the flying distance and direction of the sphere can be easily captured by the player's purpose. In addition, the three axes that vertically intersect in space generally do not form a value greater than 90 degrees for a vector. Therefore, the angle formed by the axis with the largest moment of inertia around the inertia axis among the three inertial axes and the normal vector of the best strike surface. Θ is more than 30 degrees and less than 90 degrees. 'The more preferable value is more than 50 degrees and less than 90 degrees. The more preferable value is more than 70 degrees and less than 90 degrees. In this way, the moment of inertia with respect to the direction of the force is increased, and the effect is large. Better. According to the golf iron head 1 of the present invention, as described above, the moment of inertia around the main axis of inertia is the normal vector of the interface between the axis with the largest inertia and the center of the best strike surface 3f (the normal of the best strike surface 3f When the angle formed by the vector is set to be larger, the flight distance and directionality during playing can be more stable. In addition, the golf iron set of the present invention can make golf by making the angle formed by the axis of the axis of inertia around the inertia main axis the largest and the normal vector of the interface on the center 3c of the best hitting surface 3f. The inherent flight distance of each golf club with the identification number in the club set is more stable, and the direction of the golf ball can be more stable. Therefore, a golf club set with a sense of stability for golf players can be provided. According to the present invention, the Shaft iron head is made by surrounding the inertia main shaft.

455496 五、發明說明03) 之慣性向量所為較安把而作之複數如及高爾之轴與度為較品 ° 矩為最形成之定之物為局爾之高爾上述，夫球鐵最佳打大可形大之軸與角度為較品。可對夫球鐵捍夫球桿之依本發明桿組上藉擊面之圖成打球之最佳打大可形此等高使用。套組使於骨爾由使慣心上之飛行距擊面之圖心成打球之飛爾夫球鐵才旱又，亦可作用。夫球鐵桿頭性主軸周圍接面之法線離及方向性上之接面之法線行距離及方向性頭安裝桿體及握為識別編號不同、高爾夫球鐵桿之憒性矩為最大向量所形成之角為較安定之物產業上之利用範疇一本發明係可使用於高_夫球鐵桿頭、< 面爾夫球鐵桿組之領域中。、而爾夫球鐵桿及455496 V. Description of the invention 03) The inertia of the inertia vector is more secure, such as the axis and degree of the Gore. The moment is the most fixed. The fixed thing is the Gore. As mentioned above, the ductile iron is the best. Hit a large shape and a large axis and angle for comparison. It can be used for the golf club to defend the golf club. According to the invention, the drawing of the face on the club set can be used to play the best play. The set uses Yuguer to make the flying distance on the center of gravity hit the center of the hit surface into a flying ball. The golf ball is dry and can also be used. The normal distance from the joint surface around the main shaft of the golf ball iron head and the normal line distance and the direction of the joint surface from the directional head. The directional head is installed with the body and the grip is different from the identification number, and the moment of the golf iron is the largest vector. The formed angle is a more stable use field in the industry. The present invention can be used in the field of high-end golf club heads, < , And golf ball irons and

Claims

455498455498

1. 一種高爾夫球鐵桿頭（丨），具有通過重心之三根慣性主轴（I" 12,13)，則述，根慣性主軸（、“、丨3)中，慣性主軸周圍之慣性矩為最大之軸（1丨）與通過重心之最佳打擊面（3 f )之法線向量（101)所形成之角度0係1〇度以上且為g〇度以下者。 2. 如申請專利範圍第1項之高爾夫球鐵桿頭，其中前述角度0為30度以上90度以下者。 3. 如申請專利範圍第1項之高爾夫球鐵桿頭，其中前述角度0為50度以上90度以下者。 4. 如申請專利範圍第1項之高爾夫球鐵桿頭，其中前述角度0為70度以上90度以下者。 5. —種高爾夫球鐵桿，包括：高爾夫球鐵桿頭（1)，如申請專利範圍第1項所述者；以及桿體（70)，一方端接續於該高爾夫球鐵桿頭（1)。 6. 一種高爾夫球鐵桿組’具備有識別編號為不同之複數之高爾夫球鐵桿（8〇) ’該等高爾夫球鐵桿（80)為具備有申請專利範圍第1項所記載之高爾夫球鐵桿頭（1)與一方端分別接續於前述高爾夫球鐵桿頭（1)之桿體（70)。1. A golf iron head (丨), which has three inertial main axes (I " 12, 13) passing through the center of gravity. Then, among the inertial main axes (, ", 丨 3), the moment of inertia around the inertial main axis is the largest. The angle formed by the axis (1 丨) and the normal vector (101) of the best striking surface (3f) passing through the center of gravity is 0 or more and 10 or less. 2. If the scope of patent application is the first The golf iron head of the item, wherein the aforementioned angle 0 is 30 degrees or more and 90 degrees or less. 3. For the golf iron head of the item 1 of the patent application scope, wherein the aforementioned angle 0 is 50 degrees or more and 90 degrees or less. 4. For example, the golf iron head of item 1 of the scope of patent application, wherein the aforementioned angle 0 is more than 70 degrees and less than 90 degrees. 5. —A kind of golf iron, including: Golf iron head (1), such as the scope of patent application No. 1 And a shaft (70), one end of which is connected to the golf iron head (1). 6. A golf iron set 'equipped with a plurality of golf irons (80) with identification numbers different from each other' These golf irons (80) are The patentable scope of an application is described in paragraph 1 of Golf iron head (1) and respectively connecting one end to the iron golf head (1) of the shaft (70).