TW455497B - Golf club head, golf club, and golf club set - Google Patents

Abstract

A golf club head (1, 101) has a momental ellipsoid (10, 110). Assuming that three principal axes of the momental ellipsoid (10, 110) orthogonal to each other at the origin are an axis I1, an axis I2 and an axis I3 in order of larger moments of inertia about the principal axes, the ratio (A/B) of a sectional area A at the time of cutting the momental ellipsoid (10, 110) along a plane passing through the origin and parallel to a face plane (11, 111) and a sectional area B at the time of cutting the momental ellipsoid along a plane including the axis I1 and the axis I2 is at least 1 and not more than 1.4.

Description

455497 V. Description of the invention (l) Technical field The present invention is a golf club set. Cheng's flight distance golfing equipment group. BACKGROUND ART In the past, it was described as a striker who has an inertial increase and a reduction to a lower level. However, the break in the direction of the weight added by the club head in production is in the nature. Although the special reporter reveals the degree, it only looks at it—the plane considers the inertial ellipsoid and sets Kaiping 5-5 7 0 3 4 In the bulletin: The axis of the ellipsoid is attached with a minimum while increasing the inertia JP 9-14 9 9 5 4 has a technique that is similar to the direction of the position difference when the inertial main axis is projected on the surface including the plane. The special inertial ellipsoid shown in the figure is Kaiping 9 in nature.

It is about a golf club head, an ancient female ^ Nelf club and Goryo related to a Southerf club head, an ancient club that can effectively reduce the difference between the snoring M ν β and the green position. The technology of the club heads of Alf and Al Golf β two golf clubs is disclosed in the original & weight technique of the weight ellipsoid of the club head. The difference between the plane and the horizontal plane of JP-A-Hei 10-248969 and the 1-line by setting its angle at% & flight distance. The technique of KAI HEI 5-57034 does not change the direction of the inertia axis. And because of its round body. ® The person in this bulletin has not taken into consideration the influence of the performance of the inertial golf club, so it cannot be judged as ideal. The angle of inclination of the ideal inertial spindle of the No. 1 49 9 54 or JP-A flat club head is projected at the ideal angle from the side of the optimal striking surface. Because of &, these bulletins do not mention the existence of 1 coffee 4 5 54 9 7 V. Invention Description (2) lies in three-dimensional space technology. The position of the player at the club head will cite, for example, a change in the direction of the hit | due to the impact position. The hitter is not ideal for recording. The skilled artisan is sufficient. Therefore, the present invention is to provide a Gore even if the strike position is small. Summary of the invention The distribution distance of the present invention and the inertial ellipsoid of the flying ball square head are effective when the modified three-dimensional technology for golf is used to suppress the flight distance on an object. The ideal hitting ball changes due to various factors of the ball's contact with the golf ball. And one of the characteristics required for golf clubs is the smaller the flying distance of the ball accompanied by the change in position. The change makes the direction and flying distance of the sphere unsteady and hits the sphere to the desired position. Therefore, although there is some improvement in creation record 0, the improvement cannot be explained. It is set to solve the aforementioned problems. The purpose is to change the flying distance and direction of the golf club head, golf club and golf equipment group. After reviewing the various changes in the strike position and the flying direction of the sphere, it is considered that Projecting the golf club on a plane and catching it in three dimensions can be good. That is, the inventor designed the configuration of the ideal inertial main draw by using a cup that is not known in the art. Provide—A kind of high-end ball gimmick that can be effective relative to the difference in strike position and the difference in playing direction. Figure 1A and Figure 丨 show that the inertial ellipsoid 10 is the third

45 54 97 Five 'invention description (3) the existence of the dimension. In the first circle 4 and the i-th figure B, the golf club 70 has a golf club head 1 and a square end connected to the golf club head 丨 to the shaft 60. The golf club head 1 has an optimal hitting surface i i. The inertial ellipsoid 10 of the golf club head 1 has inertial principal axes ^, L, and 込 ^ These inertial principal axes intersect with the center of gravity G that becomes the origin c. In Fig. 12 'Golf iron head 丨 7 The system includes a golf iron head 110 and a shaft 16 connected to one end of the golf club head i 〇1. The inertial ellipsoid 1 of the golf club head 1 01 has an inertia main axis 1 and 2 ′ 3. These inertial main axes intersect at the center of gravity G which becomes the origin. The length of the major axis of the inertial ellipsoid is expressed as the inverse of the square root of the magnitude of the moment of inertia of its axis. When the inertial ellipsoid is cut at an arbitrary plane, the smaller the area of the section, the larger the inertial impedance that acts vertically on the load. Here, the load generated when the player hits the sphere is represented by the vector in Figure 2. This vector F can decompose the vector Fp perpendicular to the optimal striking surface 丨 丨 and the minute vector FH parallel to the optimal striking surface Π. The difference between the flying distance and the direction of the flying ball is due to the unnecessary turning movement shown by the arrow 12 of the golf club head 1. All of the moments that generate this slewing motion are based on the vertical vector FP whose size will be perpendicular to the optimal striking surface 11 as the main component, and the vector FH parallel to the optimal striking surface 11 as a minor component and a negligible component. That is, the load when the golf club head 1 is to be rotated is applied from the direction perpendicular to the best hitting surface, and to increase the inertial impedance of the golf club head 1 with respect to this load, it is set to be parallel to Best hit pole surface 1 1 and pass

Page 7 455497 Case number 89110115 V. Description of the invention (4)

The sexual ellipsoid is called effective, and it has the best surface in the head. This occasion includes the vicinity of the point where the best hitting surface is used, so the method of achieving the product is to be integrated (using a wooden pole in this case, the hitting point, or the difference between the center and the center is best. Cut the inertial ellipsoid in the plane of the center of the shape. Its cross-sectional area) can be as small as possible for the best hitting surface: If a golf club head uses a general high-best hitting surface 1 1 is formed as a convex object, the vicinity of the center of the hitting surface (picture center) The surface is defined as the best. The plane with the largest distance is the best striking surface relative to the center of the best striking surface and the outer surface of the best striking surface. The above-mentioned purpose will not be great when the arbitrary joint surface of each point system is used as a reference. The inventors used an inertial ellipsoid and its cut surface with the following structure. In Fig. 3, the axis perpendicular to the ground and passing through the center of gravity G is taken as the 2 axis, and the interface between the center of the best strike surface 11 (the center of the best strike surface ") and the ground The intersection plane is parallel and perpendicular to the Z axis and the axis passing through the center of gravity 0 is the X axis. The axis perpendicular to both the X-axis and the Z-axis and passing through the center of gravity g is γ pumping. Also, as shown in FIG. 4, the interface with the optimal striking surface (the optimal striking surface) The vectors intersecting with the ground are parallel and the direction of the plane passing through the center of gravity G is f (l, m, n) T ', and the vectors of the following formula can be calculated. π ,, η ^^ ί χZ (0, 0, 1) τ C m2, η2) T = f, χ f · ♦ · (1) m3, n3) T = fI x f2 However, x represents the outer product. Secondly, as shown in FIG. 5 ', it will be compared with

455497 ___ Case No. 89110115 V. Description of the invention (5) The month-to-day correction interface 21 is parallel to the ground 23 and the axis passing through the center of gravity g is defined as ^ plane, and will be parallel to the aforementioned interface 21 and perpendicular to α The axis is defined as the cold axis, and the axis perpendicular to the α axis and the occupation axis is defined as the r axis. The α, point, and r coordinate systems are replaced by X, Y, and Z coordinate systems. β, χ = 1 [* α + 12 · stone + 13 · γ Y = m1 · o: + m2 · / 5 + m3 * γ ... (2) · a + n2 · call + n3. γ This cut The size of the surface is the size of the inertial impedance showing the difficulty of turning on this surface, and the cut surface is the inertial resistance of the surface in the vertical direction. In addition, as shown in FIG. 6, FIG. 7 and FIG. 8, the shape of the cut surface is a three-dimensional inertial sugar circle and the cut surface of the surface, so the fact that it can form a flat ellipse is obvious. Here's Α!, A. When Aa is the moment of inertia of the X, Υ, and Z axes, and let μ be the inertia product of the γζ plane and the XYZ plane, and let Au be the inertia product of the γ 2 plane and the χγ plane, and let Xu be the inertia product of the χζ plane and the XY plane. , You can make the relationship. .X2 + Α2. Γ2 + Α3 Α Y · Z = 1 ... (3) The ellipse system represented by formula (3) is called inertial H 颏 夂 古 a-1 shell. This is the magnitude of the inertial impedance in each direction. When the term (2) of the bamboo clothes is 0, the equation (4) that cuts the ellipse can be obtained. Let γ 1 | + Α3η12 + Α1211πι1 + Α1311ηΙ + Α23ιπ1η!) (+ A3m22 + A3n22 + Al2l2m2 + A13l2n2 + A23gl2ri2) Ling2 1 ι [2 + Α211 ^ 1112 ++ + Α1212πι1 + α ί 1 ao Ji n2

455497 --89110115 The fifth day of the fifth month, the description of the invention (6) --------- + Α1312η1 + Α23πι1η2 + Α23Πΐ2η1) α β ·.. (4) As shown in Figure 7, by this plane When the length of the ellipse and the length of the long axis are a and the length of the button is b, the area 8 when the inertial ellipsoid is cut by a plane including the long axis and the short axis is expressed by the following formula. S = π ab The area at this time is the effective cross-sectional area. In terms of the above, 'The effective cross-sectional area of the inertial ellipsoid cut by a plane parallel to the optimal striking surface and cut through the center of the inertial ellipsoid represents the inertial impedance of the object opposite to the load acting perpendicular to the surface. size. The smaller the effective cross-sectional area, the greater the inertial impedance. Therefore, by actively setting the effective section to be small, it is possible to provide a flying head and a safe head. The golf club head according to the present invention has an inertial ellipsoid. It makes the three main axes of the inertial ellipsoid perpendicular to each other at origin 2 set to axis h, axis L, and axis h in the order of the inertia moments of the major axes in the order of the axis h, axis L, and axis h. The ratio of the cross-sectional area A (effective cross-sectional area) when the inertial ellipsoid is cut by a parallel plane to the cross-sectional area B (minimum cross-sectional area) when the inertial expanded body is cut by a plane including the axis 丨] and the axis ^ (A / B) is 1 or more and 1.4 or less. Also, the "preferred" cross-sectional area A (effective cross-sectional area) is not less than 0.005 cm and not more than 0.0025 (i / g · cm2). It is also preferable that the cross-sectional area A (effective cross-sectional area) is not less than 0.0005 (1 / g · cm2) and not more than 0.00125 (1 / g · cm2). It ’s better to make the cross-sectional area A (effective cross-sectional area)

Page 10 2075-3216-FFl.ptc 4 5 54 9 7 V. Description of the invention (7) The value of the area except the nose is 丨 ♦ 〇〇 χ 丨 〇-4 (1 / g. Cm4) or less. In addition, it is preferable that the cross-sectional area A (effective cross-sectional area) be divided by the volume of the Gaoyang club head to be h 5 0 x 10-5 (l / g · cni5). Again, it is preferred that the cross-sectional area A (effective cross-sectional area) be divided by the mass of a high club head as a value of μ2), and it is more preferred that the golf club head be broken by a golf ball head. Area A (Effective cross-section area: Rigid ⑴ above heart rate & Head time: 0.020 (1 / g · cm2) or less. Further, it is preferably a golf club head's golf ball cross-sectional area A (Effective section) Area) is: 〇〇u ㈤ to τ ... 〇 · 0025 (l / g · cm2) or less. Qiao «, is the cross-sectional area A (effective cross-sectional area_ The value of the subject is 7.80 and gt; U (n (1 / (the volume of the 1 / g golf club head divided by the value of 断 is broken and U 为 is the value of the golf club head for the golf iron head).) ^ The dry-headed shellfish is divided into Yiming golf clubs with the above-mentioned golf ball; = The shaft is continued to the golf club head. Below, ~, the best of the golf clubs is to make Streamline angle is 16 degrees according to one form of the present invention_ya Takuya irons and golf clubs with golf clubs have golf clubs East iron trains including golf iron club heads And-square ends 4 5 54 97 V. Description of the invention (8) Continue the shaft of the golf iron head described above, ^^ The golf wood head is connected to the-square end as described above; Iron and golf heart] = The body of the wooden hoe is the same as the golf ball, the inertia of the round iron intersects the golf ball, and the inertia of the round body intersects the thickness of the round body. Indignant

Point and is parallel to the plane of the best hitting surface: Broken: off the original axis I, and the plane of axis 12 cuts off the inertia elliptical cross-sectional area A and is formed by the package A / " l and U below The best hitting surface of the club head with = 2. Golf iron heads: 0.0011 / g · cm2 or more and 〇〇〇〇251 u 〆3 = product A = break of the club head ~-1: 02 = according to another form of the present invention Golburn _ golf club D plural Gaul; the ball has a plurality of high ru: the face of the club head 1 golf club head has three axes of inertia round body with inertia 2 = 1Γ perpendicular to each other: According to the magnitude of the inertia moment in the circumferential direction of the main shaft, it is divided into the shaft factory, the shaft, and the ellipse. The H # pass through the origin and is flatly stared at the plane of the best striking surface. The plane cut-off inertia of 2 = the ratio of the broken cross-sectional area B = A / B is above and below 14. The ratio of the cross-sectional area A to the cross-sectional area B of a plurality of Huff club heads is relative to a predetermined The maximum value of C is below c + o · 1 and the minimum is above co. 1; this golf set is suitable for golf clubs.

V. Description of the invention (9) Articles made of Gore irons and articles on which wood and metal depend. > Golf ball iron. Gore goes to a group which has a Nanlf club and a high-end connected to a golf iron ==: m club head and -Fanglf club head and one; ::, and Yuer The golf ball is a ellipsoid with a high shaft and a high braided soil punch-terminus that is connected to the head of the golf club. Yu Gul only had the inertia point on the head and the golf club head system. The vertical inertia of the vertical club head and the golf club head is ΐ ϊ The three main axes of the ellipsoid are parallel to the suspension according to the circumferential direction of the main axis. Estimation 1 is divided into axis 〖1, axis 丨 2, and axis 13, passing through the origin, said two planes: surface cutting inertia ratio = Α / B is the cross-sectional area B when the inertial circular body is cut on a flat surface. Golf wood heads to form the best hitting surface for golf iron heads and post heads. Regarding plural golf balls, the ratio of dry, area A to cross-sectional area 8 is the largest relative to the predetermined value D & r, Λ " " ^ ^ 4D- ° -1-^ ^-^ i Λ ^: Ε Value A-Different dry value of the ratio of Shiji A to the cross section relative to the predetermined D value "is taken to be as large as E + 0.1 or less and as small as E-0.1 or more. The diagram is simply explained 'Intention Figure 1 A and 丨 _ show the inertial principal axis of the golf club head. The second figure is the schematic diagram of the force and moment generated on the ball when it is broken down into horizontal and vertical force components. The figure is a conceptual diagram of the basic axes of the coordinates of the Bayesian elliptical system.

I1MH Page 13 455497 V. Description of the invention αο) [Figure 4 is a schematic diagram for explaining the cutting of an ellipse and the transformation of coordinates. Fig. 5 is to make the contact surface on the center of the best striking surface and the line of intersection with the ground | parallel and the axis passing through the center of gravity is the α axis, and parallel and perpendicular to the surface. 〇: The material of the axis is It is a schematic diagram of the case where the axis perpendicular to the 0: pumping and the / 5 axis is 7 axes. Figure 6 shows the best strike surface in parallel with the center of gravity of the inertial ellipsoid 丨 ί

The plane is the schematic diagram of the cut surface. S Figure 7 is a schematic diagram of a plane cut through the center of gravity of the inertial ellipsoid and a plane parallel to the best strike surface j. j

Fig. 8 is a schematic diagram of a plane cut through the center of gravity of the inertial ellipsoid and a plane parallel to the optimal striking surface I. Fig. 9 is a graph showing the results of the simulation of the flight distance when the effective cross-sectional area / minimum area ratio on the main club head and the position shifted by 10 mm from the optimal striking point toward the heel are collapsed to hit the sphere. Figure 10 shows the effective cross-sectional area on the main club head and the position offset by 10 mm from the optimal strike point toward the heel. The simulated flight distance is used to strike the sphere.

Without intention. I

I

Figure 11 shows the golf ball I used for the test shown in Figure 10

Schematic diagram of I club head. Figure 12 is a schematic diagram of the inertia spindle of a golf iron head. Explanation of symbols 1 ~ wood head; 10 ~ inertial ellipsoid; 11 ~ best hitting surface; 2bu face; 2 1a ~ center of the figure; 2 3 ~ ground; 5 0, 5 1, 5 2 ~ inertia Spindle 13:

No. 14 1 4 5 54 in 1997-Amendment No. 89110115 V. Description of the invention (11) 53, 54, 55, 56 ~ weight element; 60 ~ shaft head; 160 ~ shaft; iron rod; ^ ~ Inertial & wooden pole; 10 iron plane inertial product; A13 ~ ΥZ plane χγ plane =: ~ ΥZ plane XZ

Plane inertia product; F, FP, fh ~ vector .G product, A23 ~ XZ plane XY The best form of implementation of the invention weight ~. The embodiments of the present invention will be described in detail below. First, the present inventor is a trispheric ellipsoid of an inertial ellipsoid whose origins of golf clubs intersect perpendicularly to each other. The magnitude of the moment of inertia is divided into an axis L and an axis X. The system is based on the circumference of the main axis and is divided by Cut the post in a plane parallel to the best striking surface ^ ^ Sleeve 13 when passing through the origin A (effective cross-sectional area) and the cross-sectional area B (effective cross-sectional area when the cross-sectional area including the axis ^ and axis j \ is expanded) ) The plane of 丄 2 cuts off the inertial ellipsoid. 15 series is 1 or more and 1.4 as above. € Golf club head is used on the best hitting surface. Relative weight is ^. The vertical inertia is used to weight its inertial impedance. Available effective cross-sectional area A table; That is, when the load on the right side of the inertial ellipsoid and the best hitting surface is the smallest, it is applied to 1.4 times to ^ which is most restricted to the minimum cross-sectional area β. The effective cross-sectional area is suppressed. Fig. 9 shows that it is more stable to make the axis l3 continuous from the simulation. The impact point is offset by 10 mm toward the heel side in the H direction and is used from the position of the optimal effective cross-sectional area / minimum area ratio /// inertia ellipsoid shape of the sphere. The relationship between the change of the m product ratio and the flight distance can be used to understand that if the effective cross-sectional area / minimum area ratio does not exceed Η2075-3216-ΪΨ1.ptc V. Description of the invention (12) Flight distance will not be generated ^ ~ The ratio of / min area is suppressed to I,: two low cases. In other words, the effective cross-sectional area must be the Weitian Formation, as in the previous example. Known high _ Golf club heads The golf club heads are different for each club head. The special effective area area / minimum area ratio is very different depending on the club head.] 2 Golf club heads and golf clubs Ductile iron directivity clubs: :: Flying distance clubs with irons to the right so that the golf club heads that make up the full-time golf club head with less than 1 on the right meet the above range The ratio of the sexual impedance is the inertial impedance of two and the inertial rod group actually possessed.疋 Therefore, the stability of the flight distance can be made _ the value of the flight distance within the effective cross-sectional area / minimum area ratio within the group is stabilized and can be = when the dry circumference can make the South Golf equipment group The sense of consistency is self-evident. η π. ,, /, y The inventive golf club head has an effective cross-sectional area A of 'g. Cm2) or more and 〇025 (l / g «cm2) or less. The golf ball without a dry head effectively breaks the φ product according to the inclination of the main axis of the inertial fine round body and the shape of the round body to change its value. This value is very large when it is related to the minimum cross-sectional area: the ratio of ^ has no effect on the inertial impedance and will become a club head without flight distance stability. Therefore, the effective cross-sectional area A is set to not less than 0.0005 (1 / g · cm2) and not more than 0.0025 (l / g.cm2). Also, the golf club head has an effective cross-sectional area A of 0.0005 (l / g.cm2) or more and 0.0002 (i / g.cm2) or less. The effective area A of the golf club head is 0.0005 (l / g. ⑶2) or more. Page 16 4 5 54 9 7 V. Description of the invention (13) -------- and 0 '00 1 25 (1 / g · cm2). Fig. 10 shows the change when the effective cross-sectional area of the main control head is changed from the optimal strike point to the heel side by 10 ° and the strike is changed. As shown in Figure 11, this test is prepared to compare the quality of the club head with respect to the center of gravity. G is arranged in a symmetrical position with equal weights and the main adjustment is to adjust the position of the center of gravity and weight of the golf club head. Change but change the inclination of the $ 1 main axis. The solid line 50 indicates the inertial main shaft Is of the golf club head 2 of Tongdang. The dotted line 51 indicates the inertial main axis of the first golf club head, and the dotted line 52 indicates the inertia main axis of the second golf club head. A golf club head has weight elements 53 and 54 and a second club head has weight elements 55 and 56. Regarding the No. 2 golf ball, the robot made a trial hit with a club head speed of 40 m / s. For other items, the chair has a head speed of 40 m / s. In Fig. 10, the dotted line is an item obtained by approximating the measured data with a polynomial and connecting it with an imaginary line. It can be understood from this data that the effective cross-sectional area A is a plateau-shaped peak near 0.00125. In addition, it can be understood that when the effective cross-sectional area exceeds 0.005, the flying distance will decrease sharply. Therefore, the effective cross-sectional area A is set to 0.002 (I / g · cm2) or less, preferably | 0.00125 (l / g · cm2) or less. |

Also, according to the golf club head of the present invention, the effective cross-sectional area A is divided by the area of the best hitting surface and is set to h〇〇 > < l0-4 (i / g.cnl2) j The following golf club heads. Reducing the effective cross-sectional area of the inertial ellipsoid can be achieved even when the golf club head is enlarged. In this case, when the golf club head is enlarged, the area of the optimal hitting surface necessarily increases. However, the average level of batsman has its RBI

Page 17

Ab 54 97 V. Explanation of the invention (14) The position, the difference, and the difference are the difference of the RBI when the best hit the big club head-I Therefore increase the d compensation ellipsoid set small If the RBI difference is very large, it is impossible As for the performance of 应 ί, there should be some restrictions. Therefore, by comparing the ratio of the area of the best striking surface to the effective cross-section area with the dot range n 5 /. X 1〇] (1 / g · ⑽2) or less, you can get the both. Also as described above, the hitter is a commonly used hit performance in the group with the area that matches the best hit: difference. In golf clubs, the larger the number of the wooden club head is, the larger the best hit area is. 5 The ratio of the best hit area to the effective cross-sectional area is set to-the rule is consistent with the player's commonly used hit area. Use < Deep Rod. 1 For club heads, the effective cross-sectional area divided by the size of the driver's club is 1 · 5 0 x 1 0-5 (1 / g · C m5). It is said that those who increase the size of wood club heads for golf use the technique of expanding the south, length and width of the cup head. To expand the inertial ellipse in the J direction? The shape of the body will change, and the value of the effective cross-sectional area will change. Here, the greater the improvement of the inertial ellipsoid per unit volume, the less the difference in flight distance can be made. It is better to set the effective cross section divided by the volume of the head to [50 xlG_5U / g.㈣5). In addition, when a player uses a larger club head empirically, an item with a larger but smaller club head will feel a smaller inertial impedance. t 4 5 5 4 9 7 V. Description of the invention (15) -------- This integrates the ratio of the head volume to the effective cross-sectional area into a set of golf equipment that can meet the feel of the player, Needless to say. '、 Also, the value of the effective cross-sectional area of the golf club head divided by the mass of the golf club head is 1. 00 X i 0-5 (丨 / g2 · cm2) c. The mass of the golf club head is The design of golf clubs is limited, so the increase in volume or change in mass allocation depends on the unit mass of the effective cross-sectional area. The higher the degree of dependence, the smaller the difference in flight distance can be made. The value is preferably set to 100 × 10-5 (i / g2, cm2) or less. In the case of a golf club for a Nanfu ball, the effective cross-sectional area 4 is set to be 0.0005 (1 / g. Or more and less than or equal to 0.0002 (1 / g.cri2) or less. In this case, the characteristics of golf clubs can be brought into play, and the difference in flight distance caused by the difference in hit positions is less! Head. Also, according to the present invention, the Nanlf club The club head is suitable for all clubs in the golf wooden cup set, so the characteristics of the clubs in the set can be qualitative and so on, which can constitute a golf club set. It is preferable that the streamline angle is less than 16 degrees on the aforementioned golf club. The present inventor unified and played well the feel of all the clubs in the set, but when the streamline angle is large, The ball's playing feeling will become slower and where flying distance is required, players often use items with streamline angles below κ degrees. At a minimum, about Gol ^ ball wood with streamline angles below 16 degrees干; f dry head, as long as it can provide a ball with high stability in flight distance j 柃. Above, so far the main explanation Golf ball with a wood club head '

Page 19/155497 Corrections

Five 'Explanation of the invention (16) and wood and iron in terms of shape and other aspects. The following will reveal the iron used in golf: the same is based on the golf club head ^ # the optimal value of the head 'its effect is in accordance with the golf ball of the present invention _ 〇. 〇1 u / g: cm ”and above, 〇m (d2: area A is the head of the club: the effective section is golf and the golf club iron head: g2) to: The division value is i 丄 the club head and-square end are connected to the golf ball. When Xiao Yi constructs a μ club, the above characteristics can be exerted, and the streamline angle of the golf club is 16 degrees. The following: The characteristic ellipse of the club head of an important habitual club head is parallel to the most powerful ": the inertial ellipsoid of the circumference, and the plane of inertia is cut to make it flat" :: By reducing the imaginary mass of the center of gravity of the golf ball compared to the player's ^ Xi, the ancient product is reduced. Also, by this, the number of hit positions can be increased and reduced # == $ The inertial impedance of the club head can be effectively said, thereby The difference in flight distance. With the cross-sectional area relative to the maximum: Section :::: The effective of the inertial ellipsoid can be made to suppress the difference in flight distance. No .: When the flight distance is stabilized, the unit's best strike surface area and unit head volume IH will not be opened. l 2075-3216-PFl.ptc page 20 455497

V. Description of the invention (17) The best mode of effective cross-section area per unit mass of the club head, so the effect of the club head that can be used as a stable flight distance effect can be obtained. In addition, by deploying the above characteristics on the club constituting the golf club head, it is possible to have the effect of unifying the club as a golf club set. Industrial Applicability The present invention is applicable to golf club heads, golf clubs, and golf clubs. i

Page 21

Claims (1)

455491 VI. Scope of patent application 1. A golf club head is a golf club head (1, 101) having an inertial ellipsoid (1 10, 11), wherein the inertial ellipsoids which intersect each other perpendicularly at the origin point When the three main axes of (10,110) are set to axis L, axis 12 and axis 13 in the order of the inertia moments in the circumferential direction of these spindles, they pass through the origin and are parallel to the best striking surface (11, 11 1). Of the inertial ellipsoid (1 0, 11 0) when it is cut off | The ratio of the area A to the product I of the cross section I when the inertial ellipsoid is cut in a plane including the axis L and the axis 12 (A / B) is 1 The above is 1.4 or less. j 2. The golf club head according to item 1 of the patent application range, wherein the aforementioned | cross-sectional area A is set to be 0.0005 (l / g ° cm2) or more and 0.0025 (i / g · <: ιπ2) or less. 3 _ As for the Nanlf club head in item 1 of the scope of the patent application, where the front: ^ cross-sectional area A is more than (K 0000 (l / g · cm2) and 0.00125 (14 · Γτπ2, down). \ Bu i 4, if the patent application scope 项 1 of the golf ball head, its 卞 & j cross-sectional area A is divided by the area of the aforementioned best hitting surface (11,111) > list | 1 · 00 X 10-4 (l / g · cm4) or less. The value of # is 5. If the Nanlf golf club in item 1 of the patent application scope, the cross-sectional area A is the same as the golf club head (1,101). The above-mentioned 1. 50 X 10_5 (l / g · cm5) or less. ', The calculated value is 6, such as the Nanlf golf club head cross-sectional area A of the patent application scope item 1 is the aforementioned golf club head (1, The quality of 1 0 1) | you a + don't fan 1. 00 X 10, 5 (l / g2 · cm2) or less. The value of the broad leaf is 7. For example, the Nanlf club head in the scope of patent application ^ Department of Golf Page 22 455497 VI. The scope of the patent application wooden club head (1), the aforementioned sectional area A is greater than or equal to 0 0 0 0 5 (l / g · cm2) and 0.0 0 20 (1 / g · cm2 )the following. 8. If the golf club head in item 1 of the scope of patent application is an iron head (101) for golf ball, the aforementioned sectional area A is greater than 0. 00! (I / g.cm2) and 0. 0 025 (1 / g · cm2) or less. 9. If the golf club head of item 1 of the scope of patent application is a golf iron head (100), the value of the aforementioned sectional area A divided by the volume of the aforementioned golf club head (101) is 7. 80 X 10_5 (1 / g · cm5) or less. 10. If the golf club head in item 1 of the scope of the patent application is a golf iron head (1 0 1), the value of the aforementioned sectional area A divided by the mass of the aforementioned golf club head (101) is 1.1 〇 \ 1〇-3 (] _ / Yun2 < > (:] 112) The following 3 11.-a golf club, including: the golf club head (1 '101) and the one end connection The shaft (60, 160) of the aforementioned golf club head (1,101). 12. The high-end golf club as described in item u of the scope of the patent application, with a corner of less than 16 degrees.-13 · —Golf The golf club irons (170), including golf clubs (70) and high-ranking golf clubs (Jiji), that is, the club head (101) is still connected to one end In the aforementioned golf ball, a dry f-shaft (16 \); and the aforementioned golf club is a m-iron club head (1) and one end is connected to Yu'an ancient cat soil A & Liar eight-ball iron ⑽r The aforementioned golf irons n; formerly, the club head has an inertial rounded body (1, 11, 11.), before: =: 455497 Sixth, the scope of patent application The iron head (1 0 1) and the aforementioned golf wood head (1) are the best for the aforementioned golf iron head (101) and the aforementioned golf wood head (㈠). The striking surfaces (1 1, 1 i 1) are formed so that the two main sleeves of the inertial ellipsoids (10, 110) that intersect with each other perpendicularly at the origin are set as the axis I in the order of the inertia moments of the major axes in the circumferential direction. !, Axis I? And axis, the cross-sectional area A when the inertial ellipsoid (丨 〇, 丨 丨 〇) is cut through the plane passing through the origin and parallel to the best striking surface (11, 11) The ratio of the cross-sectional area B (A / B) when h and the axis [2] cut the inertial ellipsoid is 1 or more and 1.4 or less; and the cross-sectional area A of the aforementioned golf iron head (101) is O. 〇〇i〇 / g ειη2) or more and i 0. 0 0 2 5 (1 / g · c in2) or less, and said that the aforementioned sectional area of the wood ball head (1) is 0.0005 (1 / Only * (: 1112) or more and 〇〇〇２〇 (丨 / § · cm2) or less. 14. A golf set 'including a plurality of golf clubs (70,170), j Among which, the aforementioned high The golf club (70, 170) includes a golf club head (1, 101) and a shaft (60, 160) connected to one end of the golf club head j (1, 101). The golf club head < ^, 〇1) is an inertial ellipsoid, which makes the three major axes of the inertial sugar round body (10,110) perpendicular to each other perpendicular to each other at the origin. When the small order is set to axis I !, axis 丨 2, and axis 丨 3, the inertial ellipsoid (1 0, 11 〇) that cuts through the origin and is parallel to the best striking surface (11, 111) is | The ratio of the cross-sectional area A to the cut when the inertial ellipsoid is cut with the + plane including the axis I! And the axis | The area B ratio (A / B) is 1 or more and 1.4 or less;-and plural golf balls | The ratio of the aforementioned cross-sectional area A to the aforementioned cross-sectional area B of the head (1, 101) is relative to 1 ′ 455497. 6. The maximum value C of the patent application park is less than or equal to C + 0.1 and less than cO. 1 or more. 15 · —A golf equipment set, including a golf club (70) and a golf iron (170), where 'the aforementioned golf iron (170) has a golf iron The club head (1 0 1) and one end are connected to the t club (160) of the aforementioned golf iron head (101); and the aforementioned golf wood (70) has a golf iron ^ + a dry club head ( 1) A shaft (60) connected to one end to the aforementioned golf iron head (1); the aforementioned golf iron head (丨 〇 丨) and the aforementioned golf wood head (1) have an inertial ellipse A body (10, 110) on the golf ball, the club head (1 01) and the golf club head G), the golf iron head (101) and the golf club The optimal striking surface (11 '111) of the head (1) is formed so that the three major axes of the inertial ellipsoid (10, 110) which intersect with each other perpendicularly at the origin are set in the order of the major moments of inertia of the major axis circumferential directions. Axis I], axis L and axis h, when the inertial ellipsoid (10, 11〇) is cut through the plane passing through the origin and parallel to the best striking surface (11, 1Π), the area A and the axis are included I! And the plane of the axis 丨 2 cut off the inertial ellipsoid 眭 = the ratio of the product B and is U to τ; and the above-mentioned plurality of Gore celestial wood club heads (1) The ratio of the aforementioned cross-sectional area A to the aforementioned cross-sectional area B with respect to the predetermined value D is at most D + 0.1 or less and at least D_〇.i, and front = the aforementioned cross-sectional area of the plurality of golf iron heads (101) The ratio of A to the aforementioned section $ relative to a value different from the aforementioned predetermined value D is at most E + 〇 ″ and at least E-0. 1 or more. Η Page 25