TW446567B - Golf club head - Google Patents

Abstract

Disclosed is a hollow portion-carrying golf club head (1) having a PCCP structure (2) at the whole or a part thereof except for a face portion (16) thereof, this structure serving to provide a golf club head of an outer shell structure, which enables the wall thickness thereof to be reduced without spoiling the strength thereof.

Description

446567 V. Description of the Invention (1) Technical Field The present invention relates to a structure of a club head having a hollow portion and mainly made of a metal golf club. BACKGROUND OF THE INVENTION The greatest required performance required for golf is the stability of improving flying distance and maintenance directionality. People who are called "professional level" can often hit the ball with the point of the face of the golf club's head and swing the ball very fast ', so they can play with a long distance and good direction. / Wei 'The average golfer is not very stable because of the use of the hit points on his face, so he cannot show enough flying distance and cannot stabilize β π ^ The simplest way to solve the above problem is to put the golf club A method of actively increasing the size of the head β. However, when the head is enlarged, especially when it is formed on a metal wood head that has recently become the mainstream, in addition to the weight will be increased, it will also cause golf clubs The balance of the whole becomes worse. For this reason, the "general method is to reduce the thickness of the shell material constituting the head", and the method of reducing the weight of the material per unit area to achieve the purpose of increasing the size of the head by the second method can also see a It is an article of a pattern that uses a high-strength material to further reduce the thickness of the head. In addition, JP-A-9-38248 discloses a golf club head having a wavy recess on the face in order to increase the strength to a higher level than that of a simple plate. JP-A-4 1 3 5576 also discloses In order to improve the properties of the material, the golf club head using the crystal size of the material is adjusted. Page 4 446567

However, use the above knowledge to improve the subject. The golf club head has firstly the thickness of the hand hub material for the purpose of increasing the size of the club head to reduce the thickness of the hub material, so as to reduce the thickness of the club head: 敎: Only consider hitting the ball The rush of time in the club bag when the adjacent head phase = thickness of the material 'concerns in the case of small punches other than the aforementioned during transportation. It also uses the material "2" as the material of the outer shell of the club head. However, because the body is generally more expensive, there are disadvantages in the materials that can be used. The method of providing wave-shaped grooves disclosed in the No. 38248 has not been clearly confirmed. Therefore, it is questionable whether a stable effect can be obtained. The thickness becomes thicker than a simple plate, but it has the disadvantage of increasing weight9. The method of reducing the crystal size disclosed in JP-A-135-135576 is used to increase the rigidity of the material. It is an effective measure, but because it does not improve the strength, the durability against the load is not enhanced. SUMMARY OF THE INVENTION In view of the above-mentioned problems, the main object of the present invention is to provide a golf club head with a hollow portion, There is a head with a housing structure that can be reduced in thickness without losing strength.

446567 V. Description of the invention (3) The golf club head of the present invention is provided with a PCCP (pseudo-cylindrical concave polyhedron) structure for a golf club head having a hollow portion, thereby providing increased strength and reduced thickness Large golf club head. An embodiment of the golf club head of the present invention is one in which a PCCP structure is applied to all or part of a golf club head having a hollow portion except the face. The golf club head of the present invention includes an article to which a PCCP structure is applied to a wood head having a hollow portion. This embodiment of applying a PCCP structure to a wood club head is a wood club head having a hollow portion, and passes from the crown portion to both side portions other than the rear portion, and even to the bottom face portion in a direction parallel to the face portion. The method of detouring the club head for one week continuously applies the pccp structure. In addition, a PCCP structure can be continuously applied on a wooden club head having a hollow portion, from the crown portion to the rear portion to the bottom face portion, in a direction perpendicular to the face portion. In addition, it may be an article formed by applying a pccp structure to all or a part of the crown and the bottom of a wooden club head having a hollow portion or a PCCP structure only to the crown. The pccp structure 'used in the present invention is, for example, a cylindrical structure formed by arranging a pair of triangle-shaped plastic bottoms side by side in a diamond shape to become valley lines and oblique edges to become mountain lines. Also, the 'pccp structure' may be a structure in which a pair of hexagonal trapezoidal lower bases which are adjacent to each other form a trapezoidal lower base as a valley line, and an upper base and a hypotenuse are mountain lines, and a cylindrical shape is adopted. The top of the valley line and the mountain line is formed, for example, at an obtuse angle or circularly solitary. Simple description

Page 6 446567 V. Description of the invention (4) Figure 1 is a standing view of a wooden club head implementing the PCCP structure according to the first embodiment of the present invention. FIG. 2A is a perspective view of the bottom face side of a wood club head implemented with a PCCP structure according to Embodiment 2 of the present invention, and FIG. 2B is a side view of the wood club head shown in FIG. 2A from the crown side View from above. Fig. 3A is a three-dimensional circle viewed from the bottom face side of a wood club head with a peep structure according to Embodiment 3 of the present invention, and Fig. 3B is a crown portion of the wood club head shown in Fig. 3a Top view from side view. Figure 4A is a perspective view of the bottom face side of a wood club head with a peep structure according to Embodiment 4 of the present invention, and Figure 4b is the crown side of the wood club head shown in Figure 4A. View from above. Fig. 5 is a cylindrical three-dimensional cymbal which implements the PCCP structure. Fig. 6 is a development view of a cylindrical shape implementing a PCCP structure. Best Mode for Carrying Out the Invention The golf club head of the present invention has a so-called PCCP structure on its outer surface. The so-called PCCP constructor was formed by the first letter of English pseudo-cylindrical concave polyhedral She 11, which is a pseudo-cylindrical concave polyhedron. Figure 5 shows a cylindrical circle with a PCCP structure. Figures 6A to 6! ) This is a schematic illustration of a cylindrical shape with a PCCP structure. As shown in Figure 5, the PCCP structure has a macroscopic shape that is close to a cylindrical shape. In fact, it is formed by connecting a pair of triangular bottom edges to form a side-by-side diamond shape (as shown in Figure 5) (Shown), or to form a hexagonal article by connecting a pair of trapezoids to each other

44656 7 V. Description of the invention (5) (not shown). In FIGS. 6A to 6D, solid lines other than the perimeter lines represent mountain lines, and dotted lines indicate valley lines. On the structure of the PC CP in which the constituent element is a triangle, as shown in FIG. 6A or 6C, the bottom side 51 of a pair of triangles arranged in a diamond shape becomes a valley line, and the hypotenuse 52 becomes a mountain line. It is cylindrical. In addition, as shown in FIG. 6B and FIG. 6D, the structure of the PC CP having a trapezoidal shape is formed by connecting the lower bottom 61 to each other to form a hexagon. The upper sole 62 and the hypotenuse 63 form a mountain line and form a cylindrical shape. The tops of the mountain and valley lines in 6A and 6D are made of pure angles, and this part can be formed in an arc shape. This PCCP structure is made of simple triangles or trapezoids. The structure, as shown in Figure 6A or 6 圚 B, is an article that forms a curved surface with an arbitrary curvature by changing the length of each side. "Therefore, it can be implemented in a deformed cylindrical wood head and rear Become a slightly half-pump-shaped hollow iron head. The cylindrical shape formed by the PCCP structure has characteristics of higher rigidity and cross-bend strength toward the central axis of the cylinder than a cylindrical shape formed by a smooth curved surface having the same thickness. Therefore, it is possible to design a thinner thickness without reducing the strength of the golf club head with a hollow portion toward the center. This fact can be proved by Table 1. Table 1

446567 V. Description of the invention (6) 螬 重 董 (g) " 1 Thickness (transverse) (mn) g] Compression point in the circumferential direction (ΚίΠ Number of vibrations in the height direction [Hz] Normally ® drop 35.3 0. 22 5.0 1396 PCCP structure 螬 26.0 0. 17 5. 0 1247 Table 1 is a comparison of a cylindrical tank with a diameter of 52mm and a height of 104mm made from a conventional cylinder and a comparison of articles made with a PCCP structure. Table. The cylindrical tank formed by the PCCP structure used in this experiment is the same shape as the figure 5 with two equilateral triangles of the same shape with a bottom edge of 14.85 mm and a beveled edge of 10.5 mm. 22ram 的 物 ， 为 PCCP 结构。 Both the compression point in the circumferential direction (the point at which the cylinder begins to deform when a load is applied to the circumferential direction) is set to 5kgf, compared to the ordinary cylindrical tank requires a thickness of 0. 22ram, with PCCP structure The manufactured article only needs to be 0.17mm, and the condition is shown in Table 1. 9 As a result, the overall weight of the cylindrical shape is 35.3g compared to the ordinary cylindrical can, and the PCCP structure can only It is 26.0g, which achieves the goal of reducing weight by about 26%. (Example 1) The first one is on the wood head 1 having a hollow portion, starting from the crown portion 11 (the side in the first circle, not shown) and passing through the rear portion 2 Both sides

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13, 14, and even the bottom surface 15, in a manner parallel to the face i6 (inside of the first figure, not shown), orbiting the club head for a full circle, the PCCP structure 2 is applied . / As shown in Table 1 above, the part with the PCCP structure 2 is applied. Compared with the case where the PCCP structure is not implemented, any of the crown portion 1 1 and both side portions except the rear portion 2 and 3, i 4 and the bottom surface portion 15 are arbitrary. The thickness of the parts can be reduced. Therefore, with the same volume as a known person, the weight of the wooden club head itself can be reduced, and when the same weight is obtained, the club head can be enlarged. In addition, even if the PCCP structure is thinner than the conventional PCCP structure, its strength is the same as that of a known person. Therefore, even if the club heads bump against each other in the club bag during transportation, no impact will be applied to the club head. The load caused the head to sag. Also, since it is the PCCP structure 2, the same material as the conventional one can be used. Therefore, it is not necessary to use a high-priced high-strength material, and there is no case of high cost. In addition, the cylindrical shape with the PCCP structure as described above has a higher crossbow strength toward the cylindrical central axis, while the PCCP structure with a triangular shape is relatively perpendicular to its continuous bottom edge. Upper rigidity: The rigidity of the PCCP structure with trapezoidal PCCP structure perpendicular to its continuous upper and lower bases will be reduced. The PCCP structured tank using triangles as the constituent elements shown in Fig. 5 used in the experiment with Table 1 is shown in the direction perpendicular to the bottom 51 continuous in the circumferential direction, that is, in the height direction of the tank. Its rigidity is low. In this case, the "number of vibrations in the height direction" of the PCCP structure tank in Table 1

Page 10 446567 V. Description of the invention (8) Understand that it is lower than the ordinary cylindrical tank. Therefore, as shown in FIG. 1, the crown 11 passes through the side portions 13 and 14 other than the rear portion 12 and even the bottom surface portion 15 so as to orbit the club head in a direction parallel to the surface portion 16. When the PCCP structure is continuously applied and the bottom side 51 of the triangle of its constituent elements is also parallel to the face 16, the direction perpendicular to the face 16, that is, the direction from the face 16 to the rear 12 (hitting) (Direction) becomes less rigid, so as a result, we can expect to speed up the beginning of the game. (Example 2) The second 圊 A and the second circle B are attached to a wooden club head having a hollow portion, and are applied in a direction perpendicular to the face portion 16 from the bottom portion 15 to the bottom portion 15 through the rear portion 12 from the crown portion 11 Consecutive PCCP Structure 2 The thickness of the crown portion 11, the rear portion 12, and the bottom portion 15 provided with the PCCP structure 2 can be reduced. Therefore, the same volume as the conventional one can reduce the weight of the wood head itself, but it can be the same weight. Make the head larger. Since the strength is the same as that of a conventional person, even if the heads collide with each other, there is no case where the head is sunken. In addition, on the wooden club head 1 shown in Figs. 2A and 2B, the bottom side 51 of the triangle of the peep component is made parallel to the face 16 and is therefore the same as the first embodiment and the face 16 The rigidity in the vertical direction, that is, the direction from the face 16 to the rear 12 (hitting direction) becomes low, and it is also expected to accelerate the initial speed of playing. (Example 3) The third circle A and the third figure B are disclosed in the crown u and the bottom surface of the wood head 1

IHH page 1 44656 7 5 'Invention (9) Part 15 of PCP Structure 2 is applied in a comprehensive manner. (Embodiment 4) Figures 4A and 4B show articles in which the PCCP structure 2 is applied to a part of the crown portion 11 and the bottom portion 15 of the wood head 1. In this way, it is limited to the implementation of the PCCP structure 2 of the crown U and the bottom surface 15 of the wood head 1, so the proportion of the surface area of the whole wood head 1 is very large, so the wood can be used. The head 1 is sufficiently lightweight. And because the crown portion 11 and the bottom surface portion 15 are not similar to the rear portion 12 and the side portions 1 3 and 1 4 generally have to draw a larger curve, so it is easy to implement the pCCp structure, and there are features that make it easier to manufacture the wood head 1 "such as As shown in Sections 4A and 4B, when the PCCP structure 2 is implemented in the vicinity of the crown portion 11 and the bottom portion 15 of the wood head 1 near the face portion 16, the weight on the side of the face portion 16 can be heavier than that on the rear portion 1 of the club head. 2 sides are light. In this way, since the center of gravity is deepened at the rear side 12 and the center of gravity is deepened, it is possible to exert the effect of expanding the best sweet point. In addition, it may be limited to only the bottom surface portion 15 of FIG. 3A, or only the crown portion 11 of FIG. 3B, or only the bottom surface portion 15 of fourth circle A, or only the crown of FIG. 4B. The unit 11 is provided with a PCCP structure 2. As shown in FIG. 3B and FIG. 4B, when the PCCP structure 2 is applied to the crown portion 11 of the wood head 1 having a hollow portion, the weight of the crown portion 11 can be reduced. For this reason, by making the bottom portion 15 the same structure as before, or by compensating the lighter portion of the crown portion 11 to the bottom surface portion 15 by weight, the center of gravity of the wood head can be lowered. As a result, when the ball is hit Can make the sphere rise better. mm mm Page 12 446 56 7 V. Description of the invention (Embodiment 3) shown in Fig. 3A and Fig. 3B and Embodiment 4 shown in Fig. 4A and Fig. 4B In the case where the _bottom edge 51 of the triangle of the constituent elements of the pccp structure is made parallel to the face portion 16, it is not as good as shown in the first embodiment, the second embodiment, the second embodiment, and the second embodiment, as shown in FIG. The degree λ of the second embodiment can reduce the rigidity in the direction perpendicular to the face M, that is, in the direction (face direction) from the face 16 toward the rear but 12, and it is also expected that the initial speed of the ball will be reduced. Speed up the effect. Without being limited to the foregoing examples, the position for implementing the PCCP structure 2 may be implemented on any part other than the face 16 of the wood head 1. The f theory is that the PCCP structure 2 'can be implemented at any position to make the thickness of this part thinner, so the weight of the wood head can be reduced. Next, since the weight can be adjusted by adjusting the range of the PCCP structure, the degree of design freedom is wide when the head is enlarged. In addition, as described above, the adjustment of the center of gravity depth and the position of the center of gravity is very easy. In this embodiment, by making the bottom side of the triangle of the constituent elements of the PCCP structure parallel to the face, the rigidity in the striking direction becomes low. The acceleration of the initial speed of the ball is the same as the aforementioned one. It ’s also possible to provide a club that is very interesting in design by using the PCCP structure. In the embodiment 4 described above, it is explained that the PCCP structure of which the constituent elements are triangular shapes, and these articles can also achieve the same effect when the PCCP structure of the trapezoidal constituent elements is used. Also, the embodiments are all articles clung to a wooden club head, and when these designs are implemented on a part other than the face of the hollow iron club head, they can be expected to exhibit the same effect.

Page 13 446567

V. Description of the invention (11) The # head of the present invention can be manufactured by forging method, or by upsetting method. In addition, when implementing the pccp structure on a part of the golf club head, the PCCP structure can be made by forging, casting, or stamping, and the other parts of the PCCP structure can be made by known methods. The shaped club head is manufactured by joining, bonding, and fitting. INDUSTRIAL APPLICABILITY As described above, according to the present invention, a portion of a hollow golf club head that implements the PCCP structure can reduce the thickness of the shell material of the golf club head when the PCCP structure is not implemented. Therefore, it is possible to reduce the weight of the club head when the volume is the same as the conventional one, and to increase the head size when the weight is the same. f Even if the thickness is thinner than the conventional 2PCCP structure, the strength is the same as the conventional one, so even if the club head is touched in the bag during transportation, there will be no load due to the club head. A situation where the hoe is sunken occurs. In addition, since the same materials as those of a known person can be used in making the PCCP structure, it is not necessary to use expensive high-strength materials, and π may increase the cost. When the base of the triangle of the PCCP structure and the upper and lower sides of the trapezoid are parallel to the face, the rigidity of the striking direction perpendicular to the face will be reduced ', and the initial speed of playing can be expected to be increased. The PCCP structure can be implemented on any part other than the face of the club head, regardless of the position where the PCCP structure is implemented, the thickness of the part can be reduced, and the weight of the club head can be reduced. In particular, the crown and bottom of the wood head occupy a large surface area because

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Larger, and its curvature is smaller than the rear and side, so it is easy to manufacture and the effect is also adjustable. By adjusting the range of the PCCP structure, the weight can be adjusted. Therefore, the design freedom can be wider when the head is large. . For example, when the PCCP structure is implemented on the crown and bottom part of the wood head near the face, the weight on the face side can be lighter than that on the back of the head ^, so the depth of gravity will be deeper and can be enlarged Best hit point. In addition, when the PCCP structure is implemented only on the crown, the weight of the crown becomes lighter and the center of gravity can be lowered. When the sphere is hit, it is better to raise the sphere. -Symbol description: 1 ~ / Golf club head; 2-"PCCP structure; 11 ~ Crown, 12 ~ Rear; 13, 14 ~ Both sides; 15 ~ Bottom face; 16 ^ Face * 51 ~ Triangle bottom 52 to triangular hypotenuse; 61 to trapezoidal bottom; 62 to trapezoidal upper; 63 to trapezoidal hypotenuse.

Claims (1)

446567 Case No. 88108292 6. Scope of patent application 1. A golf club head characterized in that a PCCP structure (2) is implemented on a hollow Gulf club head (1), in which the front Gp ° ccp : Build (2) is the bottom edge (51) connected to each other and arranged side by side to form a pair of dimples. The bottom edge becomes a valley line, and the hypotenuse becomes a mountain line, forming a cylindrical creator. In addition, the system of the valley line and the mountain line of the PCCP structure (2) is formed into an obtuse angle or an arc shape. ° 2. —A golf club head characterized in that a PCCP structure (2) is implemented on a hollow club head (1) with a hollow core, where the aforementioned = (2) is a connection to the bottom (61) and a hexagonal pair of trapezoidal lower bases (61) become valley lines, and upper bases (¢ 2) and hypotenuses <63) are mountain lines 'constructed in a cylindrical shape' And the top of the valley line and the top of the mountain line of the pccp structure (2) are formed at an obtuse angle or formed in a round shape. Master 3. If the golf club head of the i-th member of the scope of the patent application applies to all or excluding the face (16), the pccp structure (2) m of the golf club head is implemented Wherein, the aforementioned Nanlf club head (1) is a wooden club head including a crown (1 丨), a rear portion (12), a bottom surface portion (15), and a face portion (16). ) Passes through the two side parts (丨 3, i 4) other than the aforementioned rear part (1 2), and the aforementioned bottom surface part (15) is used to orbit the club head (1) in a direction parallel to the aforementioned surface part (16) ) PCCP is implemented continuously for one week. 5_ If the golf club head under the scope of the first patent application item No. ^, the Nanlf club head (1) includes a part (1 丨), a rear part (丨 2), and a bottom surface part (15). And the face (16) of the wood club head, and from the aforementioned crown (1 &quot; 4. If the scope of patent application item i ^ face 2075 * 2596-PF | page 16 44656 7 ^ M 881 08292 jt_a. B Amendment 6. The scope of the patent application goes through the aforementioned Zou (1 2) and (16) is connected in a vertical direction. 6. If the aforementioned golf club head (1 bottom surface (15) and face (16) is described in the patent application scope, The whole of the Ministry (15) or 7. If the aforementioned Nanlf club head (1 bottom face (15) and face (16) in the scope of the patent application is implemented with PCCP structure (2). The aforementioned bottom face (15) is connected with The aforementioned face continued to implement the structure (2). The golf club head of the first item || exciting item includes a crown (11), a rear portion (1 2), a wood club head, and the aforementioned crown (11) and the first part of the previous part implements the PCCP structure (2). And A's golf club head 'its) consists of a right crown with a crown (1 1), a rear 2), 5E dry wood in the Si master, and only the crown portion (11) is 2075-2596-PF1 $ 17 pages