TWI262809B - Golf club head having lower center of gravity - Google Patents

Abstract

A golf club head comprises a body portion and a striking plate portion. The body portion has a connecting portion at its front side for connecting the striking plate portion which has a metal matrix and at least one light-weight reinforcing filler. The metal matrix constitutes the basic frame of the striking plate portion, and forms with a recession for combining with the light-weight reinforcing filler. The weight of the striking plate portion can be reduced by using light-weight reinforcing filler so that a center of gravity of the golf club head can be relatively adjusted backward and downward.

Description

1262809 I —------—------- V. DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to a low center of gravity golf club head construction, and more particularly to the use of a metal The base material and at least the lightweight reinforcing material are combined to form a striking panel portion to reduce the weight of the striking panel portion, thereby facilitating adjustment of the center of the club head. [Prior Art] For the structure of the golf club head, please refer to the invention patent of "G ο 1 f C 1 ub H ead" in US 5, 4 3 9, 2 2 3, which includes an ontology. Department, a striking panel and a counterweight. The body portion is further provided with a sleeve and an assembly port. The sleeves are integrally formed or combined in a manner of being formed on one side of the body portion. The assembly port is substantially recessed at the bottom of the back of the body portion for incorporation and engagement with the weight portion. The striking panel portion is also integrally formed on the front side of the main body portion by means of integral molding or combination. The material weight of the weight portion is designed to be larger than the material specific gravity of the body portion, so that the gb weight portion is advantageous for adjusting the overall center of gravity of the golf club head backwards and downwards. In particular, when the striking panel portions are separately provided, the striking panel portion may also be made of a material having a low specific gravity to facilitate further adjustment of the overall center of gravity of the golf club head backwards and downwards. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The specific gravity of the metal material is about 4 · 5 [for example, titanium alloy]. Based on the ratio of the volume to the weight of the three, the range of the center of gravity contribution of the weight portion actually has its limit. In other words, before the selection of a lightweight metal material in the striking panel, it is intended to significantly reduce the relative

1262809 V. Invention description (2) —""- ~ The weight of the front half of the club head, in order to contribute a large soft adjustment. Based on the above factors, today's golf club heads: the heart and the heart are not allowed to be depressed, so it is still necessary to further change the center of gravity. In view of the above, the present invention improves the above-mentioned disadvantages by combining a metal substrate and at least one light-weight one-in-one hitting panel portion substrate to form a base material of the striking panel portion. The metal is bonded to the metal substrate i so as not to affect the material; the material substantially reduces the weight of the striking panel portion, and adjusts the overall center of gravity of the head backwards and downwards. ^ In the end, it is advantageous for the monthly soap to increase the center of gravity to adjust the margin and improve the whole 1 clear content [Summary of the content] combined and zoom - body hit performance. A t=ί L eye provides a low center of gravity golf club head structure, ::L, the part is made of a metal substrate and at least - light weight = 稷 δ to reduce the impact of the panel Adjusting the club head down and down, 仏 π π is more beneficial to the rear and 敫 片 乃 & i ^ makes the invention have the effect of increasing the center of gravity and the overall impact performance. . Zhou Qi t ί:r provides a low center of gravity golf club head structure, j 2 r Ϊ 1 and the metal substrate of the striking panel is further bent from the periphery to form a bad wall, so that the invention has the ability to improve elastic deformation and The overall performance of the batting performance. &i body The low center of gravity golf club head construction according to the present invention comprises a body portion and a striking panel portion. A front portion of the body portion is provided with a joint portion. The fight

C:\L0G0-5\FIVE C0NTINENTS\PK9797. ptd

1262809

Γ^, invention description (3) The panel is provided with a metal material to form the striking panel for combining the lightweight reinforcement to reduce the weight and then set. It is the basic structure of the substrate and at least one lightweight part, and is made of materials. The striking panel section facilitates the adjustment of the reinforcement material backwards and downwards. The metal base has at least one groove for aligning the center of gravity of the entire head of the lightweight reinforced material. [Embodiment] Features and advantages can be more apparent, and in conjunction with the drawings, in order to achieve the above and other objects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS The preferred embodiments of the present invention will be described in detail below. Referring to Figures 1 and 2, the golf club head structure of the low center of gravity according to the first embodiment of the present invention substantially comprises a body portion 1 and a striking surface weight portion 30, which together form an ancient 俨 俨 俨_ ^ ^ ° ^ J ^ Tongfu Cup Head, the following golf club head will be iron-type and wood-type (w〇〇d) heads, but can also be used from multi-purpose poles Type (utility) or putter type d drought. / Referring again to Figures 1 and 2, the body portion i of the first embodiment of the present invention is an iron-type head, which is preferably obtained from a suitable metal, alloy material or non-metal material, such as titanium. Alloy, stainless steel, carbon steel, low carbon steel, alloy steel, low alloy steel, hemp steel, iron manganese aluminum alloy, cast iron, nickel base alloy, structural steel, carbon fiber, etc., and the body part can be cast, Manufactured by forging or machining, the body portion 1 includes a set of necks η, a joint portion 2, a recess 13 and an assembly port 14. The sleeve 1 1 is formed on one side of the body portion 1 . The joint portion 丨2 is substantially disposed at a front lip position of the body portion 丨〇. The recess 13 is recessed on the front side of the body portion 1 and is optional

1262809 V. Description of invention (4) The choice of the square; the end 5 forms an open or closed shape. Furthermore, the bottom portion of the body portion 1 is preferably designed to be relatively larger than the top volume thereof, and the assembly opening 14' is opened at the bottom of the body portion 1 以 for assembling the weight portion 3 〇 to facilitate Relatively lower the position of the center of gravity of the overall head. Referring again to Figures 1 and 2, the striking panel 420 of the first embodiment of the present invention is formed by combining a metal substrate 21 and at least one lightweight reinforcing member 22. The metal substrate 21 substantially constitutes the basic structure of the striking panel portion 2, and is preferably also made of a metal or alloy material having a high elastic modulus and a specific gravity smaller than that of the body portion, such as a titanium alloy or an iron-manganese alloy. , aluminum alloy, «magnesium alloy, etc. The metal substrate 21 is recessed to the y groove 2 1 1 at at least a predetermined position. The opening of the recess 21 1 faces the front surface of the striking panel portion 20 for engaging the lightweight reinforcing member 22. 5以上。 The difference between the weight of the light-weight reinforced material 22 and the metal substrate 2 1 is preferably at least 1.5, especially at 2.5 or more. Because ^^ lightweight reinforcing material 22 is preferably obtained from aluminum, aluminum alloy, magnesium alloy, carbon fiber, and Kevlar fiber (KevlarR poly(p-phenylene terephthalamide) produced by DuPont) , thermoplastic elastomer (thermoplastic eiastome; r), rubber [rubber], polyurethane [PU], polyolefin [p〇ly〇lefin], epoxide epoxide and other polymeric materials. Further, the breech reinforcement 2 2 may be directly formed in the recess 211 by means of injection molding, or may be pre-formed and then embedded in the recess 2 11 . Referring to FIGS. 1 and 2 again, the first embodiment of the present invention has a weight portion μ having a specific gravity larger than that of the body portion 10, and is made of an alloy material such as tungsten.

C:\L0G0-5\FIVE CONTINENTS\PK9797. ptd

1262809 V. Description of invention (5) ' "One " ' - Iron-nickel alloy, tungsten alloy, etc. The weight portion 3 〇 can be embedded in the soil portion 14 of the body portion 1 to lower the center of gravity of the entire club head. In the second embodiment, when the assembly is performed, the striking panel portion 2 is joined to the joint portion 12 of the main body portion 1 by the back lip of the metal base material 21, and may be selected according to product requirements. Suitable welding, welding, brazing, Π g ^ melon pressing or bonding. As for the lightweight reinforcing material 2 2 of the panel portion 20, it is selected to face the front. Furthermore, the ==3 〇 is embedded in the assembly port 4 of the body portion 。. When the assembly is completed: the tongue = the metal substrate 21 of the striking panel portion 20 can reduce the weight of the front half of the integral club head, in particular, the lightweight reinforcing material 22 of the striking panel portion 20 can further weight the front half of the body head The bottom portion of the body portion 10 is larger than the top portion of the body, and the weight of the bottom portion of the integral head can be increased. In particular, the assembly port 14 of the body portion 10 can be combined with the weight portion 30 to increase the integral rod. The weight of the bottom and back of the head. That is, in the upper and lower parts, the lightweight reinforcing material 22 can set the weight of the striking panel portion by a predetermined lower range, and the weight portion 30 can be used to the body portion 1 Increasing to a predetermined higher range is therefore advantageous for minimizing the weight of the iron-type I as much as possible, thereby increasing the overall hitting of the ball. = Referring to Figure 3, it is disclosed that the low center of gravity = Shanlf head structure of the second embodiment of the present invention. Compared with the first embodiment, the punching portion 20 of the second embodiment is formed by recessing the back surface of the metal substrate 21 to form at least one recess = 2丨1 for providing the lightweight reinforcing member 22. Under this structure, the glazed reinforced material 2 2 can also reduce the weight of the striking panel portion 2 to a predetermined

C:\LOGO-5\FIVE CONTINENTS\PK9797. ptd第10页

1262809

The lower portion, and the weight portion 30 can also increase the bottom weight of the body portion 10 to a predetermined higher range, thereby also facilitating the overall center of gravity of the club head to be as low as possible, thereby increasing the overall impact. Ball performance. Referring to Figure 4, there is disclosed a low center of gravity golf club head construction in accordance with a third embodiment of the present invention. Compared with the first embodiment, the metal substrate 2 1 of the hitting panel portion 20 of the third embodiment is further bent backward from the periphery to form at least one ring wall 23, thereby making the cross section of the striking panel portion 20 U-shaped to increase the elastic deformation ability of the striking panel portion 2 . Further, the metal substrate 2 1 may alternatively be recessed on the front or back to form the recess 2 11 (as shown in Figs. 2 and 3) for bonding the lightweight reinforcing member 22. Under this structure, the lightweight reinforcing material 2 2 can also reduce the weight of the striking panel portion 2 〇 [the U-shaped cross-section panel] to a predetermined lower range, and the weight portion 30 can also After the body portion 10, the bottom weight is increased to a predetermined higher range, so that the overall center of gravity of the head is as low as possible, and the ball is relatively strong. Referring to Figures 5 and 6, there is disclosed a low center of gravity golf club head construction in accordance with a fourth embodiment of the present invention. Compared with the first embodiment, in the field of iron-type heads, the fourth embodiment is applied to the field of wood-type heads, which also includes the body portion 10, the striking panel portion 2, and the weight portion 3〇. The body portion 1 is provided with the neck portion 11, the joint portion 12, the pocket portion 3, and the assembly port 4. The striking panel portion 20 is provided with the metal base material 21 and the lightweight reinforcing material μ. Furthermore, the metal substrate 21 is selectively recessed to form the recess 2丨丨, the recess 2 1丨 further communicates with the front and back surfaces of the metal substrate 21, and a shoulder 2 1 is selectively formed in the slot. 2, the shoulder 2 1 2 faces the front. Thereby, the groove 2丨1 can increase the gold

C:\L0G0-5\FIVE CONTINENTS\PK9797.ptd Page 11 1262809 V. INSTRUCTION DESCRIPTION (7) The reliability of the combination of the substrate 21 and the lightweight reinforcing material 22. Alternatively, the metal substrate 21 may be bent back to form at least one annular wall (as shown in Fig. 4) so that the cross-section of the striking panel portion 2 is U-shaped. Under the above structure, the lightweight reinforcing material 22 can also reduce the weight of the striking panel portion 20 to a predetermined lower range, and the weight portion 3 can also be the bottom portion of the body portion 1 Increasing to a predetermined higher range is advantageous for minimizing the overall center of gravity of the wooden cup head as much as possible, thereby increasing the overall hitting performance. Referring to Figures 7, 8, and 9, it is disclosed that the low center of gravity golf club head construction of the fifth, sixth and seventh embodiments of the present invention. Compared with the first and fourth embodiments, the metal substrate 21 of the striking panel portion 2 of the fifth, sixth and seventh embodiments is required to form various grooves 2 to change the metal t21! Lightly combine the reliability of the reinforcing material 22, or enhance the elastic deformation ability of the metal base. The metal substrate 21 has a front surface and a back surface. The front surface of the five-member substrate 21 is provided with a first recess 211, and the back surface is provided with a second recess 211 and a second recess 21 At least one of the turns is connected between the turns to firmly bond the lightweight reinforcing material 22. First, the front and back sides of the metal substrate 21 respectively form a plurality of two-two grooves 211: and the first and second grooves are called white columns ##. @日守, in the thickness of the metal substrate 21 2 " slot 211 Λ good does not extend to the back to the adjacent two; between the 兮 兮 厘 I ' • • • • • • • • • • • • • • • • • • • • • • • • • • • • 211' can lift the elastic deformation ability of the metal substrate 21.

1262809 • V. Inventive Note (8) As shown in FIG. 9, the front and back sides of the metal substrate 2 1 are respectively formed with a plurality of first grooves 2 1 1 and second grooves 2 1 1 ', and the first The first and second grooves 2 1 1 , 2 1 1 ' are staggered. At the same time, in the thickness direction of the metal substrate 21, the first recess 21 1 preferably extends from the back surface to the adjacent second recess 2 1 1 ', whereby the first The second grooves 2 1 1 , 2 1 Γ can further enhance the elastic deformation ability of the metal substrate 21 . > As described above, compared with the conventional golf club head structure, only the weight portion is used to lower the position of the center of gravity of the entire club head, but it is difficult to further reduce the missing point such as the center of gravity. The present invention of Fig. 1 is based on the metal base. The material 2 1 and the lightweight reinforcing material 2 2 are composited to form the striking panel portion 10 to further reduce the weight of the striking panel portion 10, thereby facilitating the rearward and downward adjustment of the overall center of gravity of the head. Thereby, the present invention can surely increase the center of gravity adjustment margin and improve the overall hitting performance. The present invention has been described in detail with reference to the preferred embodiments of the present invention. However, it is not intended to be construed as the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope is subject to the definition of the scope of the patent application attached.

C:\LOGO-5\FIVECONTINENTS\PK9797.ptd $ 13 Stomach 1262809 - Brief description of the drawing [Simplified illustration of the drawing] Fig. 1 : Low center of gravity of the first embodiment of the present invention: an exploded perspective view of the structure of the Helfer head . Fig. 2 is a view showing the low center of gravity of the first embodiment of the present invention: an anatomical view of the structure of the head of the Erfurt. Fig. 3 is a perspective view showing the low center of gravity of the second embodiment of the present invention: the anatomical view of the structure of the golf club head. Fig. 4 is a view showing the low center of gravity of the third embodiment of the present invention: an exploded perspective view of the structure of the head of the Erfurt. Fig. 5 is an exploded perspective view showing the low center of gravity and the head structure of the fourth embodiment of the present invention. Fig. 6 is an exploded sectional view showing the structure of the low center of gravity of the fourth embodiment of the present invention. : The second:.....: The low center of gravity of the fifth embodiment of the present invention, the three-dimensional and partial cross-sectional view of the striking panel of the golf club head structure. FIG. 8: The low center of gravity of the sixth embodiment of the present invention: Stereoscopic and partial cross-sectional view of the striking panel of the Erfurt head structure 〇9: The low center of gravity of the seventh embodiment of the present invention: a stereoscopic and partial cross-sectional view of the striking panel of the golf club head structure 〇 [main component symbol Description] 10 body part 11 neck 12 joint part 13 pocket 14 assembly ^ 1 20 striking panel part 21 metal substrate 211 groove 211 , groove

C:\L0G0-5\FIVE CONTINENTS\PK9797.ptd Page 14 1262809 • Simple illustration 2 1 2 Shoulder 2 1 3 Through Hole 23 Ring Wall 3 0 Counterweight 2 2 Lightweight Reinforcement Heat • Ι· ·!ΙΙ C:\L0G0-5\FIVE C0NTINEi\TS\PK9797. ptd第15页

Claims (1)

1262809, the patent application scope of a low center of gravity golf club head structure, comprising: a body portion, the front side of which is provided with a joint portion; a striking panel portion, which is provided with -4 female snoring; The base metal substrate constitutes a basic structure of the panel σ卩, and is provided with at least one groove; and at least a-fein-reinforced material is coupled to the metal base for relatively reducing the weight of the striking panel portion. = Adjust the overall center of gravity of the club head back and down. Favorable, Baiyi applied for patents 圊泫 圊泫 1 1 其中 其中 其中 其中 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体A t 4 M r η ^ heavy mass is greater than the specific gravity of the body portion. It is: the golf club head structure with a low center of gravity of the second brother, the coefficient and the high elastic deformation of the metal substrate. The metal and alloy material of the third body part according to the patent application scope. 'The part of the hitting panel ^ 夕, into the low center of gravity of the Chanf head structure, Ming alloy, Syrian to the base material is derived from titanium alloy, iron fierce, 'β gold, recorded people yishen 凊 patent range Among them, the low-centered golf club head structure of the striker #立立, the difference is more than 1 · 5 or more. The difference between the weight of the lightweight reinforcing material and the metal substrate is in accordance with the scope of the patent application. The golf club head structure of the low center of gravity of the impact panel item, magnesium alloy, bismuth fiber: the enamel reinforcement material is derived from Ming and Ming. Alloy rubber, polyurethane, order =, Kewei fiber, thermoplastic elastomer, rubber, according to the patent application, epoxy resin, polymer materials. The low center of gravity golf club head structure of item 1, C:\L0G0-5\FIVE CONTINENTSXPK9797 Page 16 1262809, VI. Patent Application Area The metal substrate of the striking panel portion is recessed from the front surface to form the recess for bonding the lightweight reinforcing material. 8. The golf club head structure of the low center of gravity according to the first aspect of the patent application, wherein the metal substrate of the striking panel portion is recessed from the back surface to form the recess for bonding the lightweight reinforcing material. 9. The golf club head structure of the low center of gravity according to item 1 of the patent application scope, wherein the metal substrate of the striking panel portion is further bent from the periphery to form at least one ring wall, so that the cross section of the striking panel portion is U. Shape to increase the ability of elastic deformation. 0. The golf club head structure of the low center of gravity according to claim 1 of the patent application, wherein the recess of the metal substrate communicates with the front and back sides of the metal substrate via a plurality of through holes. 11. The low-centered golf club head structure according to claim 10 of the patent application scope, wherein the groove of the metal substrate further forms at least one shoulder in the groove, the shoulder facing the front surface to increase the metal substrate and The reliability of the combination of lightweight reinforcements. 1 . The golf club head structure according to claim 10, wherein the groove of the metal substrate further forms at least one shoulder in the groove, and the shoulder faces the back surface to increase the metal base. The reliability of the combination of materials and lightweight reinforcements. 1 3, according to the low center of gravity golf club head structure of claim 1, wherein the metal substrate has a plurality of grooves formed on the front and back sides, and the front and back grooves are staggered to Improve the elastic deformation ability of the metal substrate. C:\L0G0-5\FIVE C0NTINENTS\PK9797.ptd Page 17 1262809 \, Patent Application No.1 4. Low-centered golf club head structure according to Article 13 of the patent application scope, in which the thickness of the metal substrate In the cross-sectional direction, the groove of the front side does not extend to the back side to between the grooves of the adjacent two of the back faces. 1 . The low center of gravity golf club head structure according to claim 13 of the patent application scope, wherein the groove of the front surface extends to the back side to the groove adjacent to the back surface in the thickness profile direction of the metal substrate. between. « C:\L0G0-5\FIVE CONTINENTS\PK9797. ptd ^ 18 β