JP2005130911A - Connecting structure between golf club head and weight - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify a manufacturing process in assembling a weight using a filling material and absorb vibration produced in driving. <P>SOLUTION: The subject connecting structure comprises a head body, the weight and the filling material. The head body, in its bottom part, is provided with a storage chamber. The weight is provided inside the storage chamber to adjust the gravity center of the head body. The storage chamber is sealed by using the filling material so as to cover and fix the weight. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a coupling structure of a golf club head and a weight, and particularly relates to a coupling structure capable of quickly covering and fixing a weight using a filler.

  A conventional golf club head / weight coupling structure includes a head body 10 and a weight 20 as shown in FIG. The head body 10 is made of a material having a low specific gravity, such as a titanium alloy, stainless steel, ferro-manganese-aluminum alloy or other soft irons and an iron alloy, and the weight 20 is made of a material having a high specific gravity. A tungsten-ferro-nickel alloy or other tungsten alloy. Since the accommodating chamber 11 or the recessed portion 101 is provided at an appropriate position in the head body 10, the weight 20 can be coupled using an appropriate coupling method. Therefore, the completed golf club head composed of the head body 10 and the weight 20 can keep the position of the center of gravity of the head body low and relatively increase the volume of the head body with the same weight. There are some which are capable of reducing the relative thickness of the main body and further improving the deformability due to the elasticity of the head main body.

In addition, as a conventional golf club head / weight coupling structure, the weight 20 is coupled to the head body 10 by using a compression, fitting, or screwing system in the industry. For example, there is one in which a plurality of weight members are fitted and fixed using bronze (see, for example, Patent Documents 1 and 2).
US Patent No. 6,592,468 US Patent No. 6,616,547

  In the conventional golf club head and weight coupling structure as described above, as shown in FIGS. 7 and 8, the materials of the head main body 10 and the weight 20 are different, so that the coupling is performed by various welding methods (welding). At times, there is a problem that a rupture due to welding heat or a melt path is solidified and deteriorates, which is not suitable for bonding dissimilar metals. For this reason, in the industry, the head body 10 and the weight 20 are joined together by using a brazing method. However, there are a number of problems in the manufacturing process of the brazing method. For example, the welding material of the brazing 101 has a high amount of components such as silver, copper, titanium, and nickel, so that the manufacturing cost is high. Become. In actual use, the head body 10 and the welding material must be heated at the same time in the brazing manufacturing process, so that the metal molecular structure and composition of the head body 10 are likely to be affected. And flexibility is lowered. Further, it is difficult for the operator to control the manufacturing process conditions such as the dose of the brazing welding material, the degree of tight fit between the storage chamber 11 and the weight 20, and the force of fitting the weight 20. In addition, since the brazing welding material contains welding cream, the organic material is volatilized due to the high temperature of the welding cream, so the filler overflows to the outside, the filling is insufficient, the cavity is formed, or the filling is done. Since the waste of the material occurs, there is a problem in that the bonding strength due to the brazing of the weight 20 is affected and the operation difficulty of the brazing manufacturing process is increased.

  In addition, in the conventional golf club head / weight coupling structure as described above, the coupling method using the press fitting, fitting or screwing method makes the manufacturing process simpler than the welding or brazing method. However, there are not only problems that the surface of the head body is cracked, twisted and deformed, and the appearance is affected. For example, it is not suitable for the use of an ultra-large wood head. Thus, the conventional golf club head and weight coupling structure as described above must be further improved.

  The present invention has been invented in view of such problems. The object of the present invention is to cover and fix a weight in a storage chamber of a head body using a filler, Since it can be performed directly at normal temperature, it can eliminate the manufacturing process of welding, heating or pressurization, so that the assembly of the weight can be performed quickly and easily, and the light material of the filler is used for hitting An object of the present invention is to provide a golf club head / weight coupling structure capable of absorbing the vibrations of the golf club head.

  A first object of the present invention is to provide a golf club head capable of quickly and easily performing a weight assembling process by covering and fixing a weight in a storage chamber of a head body using a filler. It is intended to provide a weight connection structure.

  The second object of the present invention is to cover and fix the weight by using the filler, so that the light material of the filler can absorb the vibration at the time of hitting. It is an object of the present invention to provide a golf club head / weight combination structure capable of enhancing stability and grip comfort.

  The third object of the present invention is to cover and fix the weight in the storage chamber of the head body using a filler, and to form a plurality of kerfs on the outer peripheral wall near the opening of the storage chamber. By doing so, it is possible to increase the bonding strength of the filler, and thus to provide a golf club head / weight coupling structure that can increase the reliability of weight coupling.

In order to achieve the above object, a golf club head / weight coupling structure according to the present invention is as follows. That is,
Consists of a head body, a storage chamber, a weight and a filler. The storage chamber is provided at the bottom of the head body, and an opening is formed in the storage chamber. The weight is provided in the storage chamber. The filler can be fixed by covering the weight by sealing the opening of the storage chamber.

  In the golf club head / weight combination structure according to the present invention, the filler may be made of a light material. The light material may be selected from resin, epoxy resin, polymer compound material, rubber, thermoplastic elastic material, PU elastic filler, carbon, light alloy, titanium alloy, aluminum alloy and viscous composite powder thereof. In addition, a plurality of kerfs are provided on the inner peripheral wall of the storage chamber close to the opening, and the reliability of bonding of the fillers can be enhanced by the kerfs. The opening of the storage chamber can also be provided at the bottom of the head body so as to face upward. Moreover, the opening part of a storage chamber can also be provided in the bottom part of a head main body so that it may go back. Further, the opening of the storage chamber can be provided at the bottom of the head body so as to be directed downward. The head body can also be an iron type head. The head body can also be a wood-type head. Further, the filling material can be formed by filling the opening of the storage chamber by hot pressure molding or injection molding, thereby covering and fixing the weight inside the storage chamber.

  According to the golf club head and weight coupling structure of the present invention, the weight assembly process can be quickly and easily performed by covering and fixing the weight in the housing of the head body using the filler. There is an advantage that can be.

  According to the coupling structure of the golf club head and the weight of the present invention, the vibration at the time of hitting can be absorbed by the light material of the filler by covering and fixing the weight using the filler. There is an advantage that the absorption effect, the stability of the hit ball and the grip feeling can be enhanced.

  According to the golf club head and weight coupling structure of the present invention, the weight is covered and fixed in the storage chamber of the head body using the filler, and a plurality of outer peripheral walls are located near the opening of the storage chamber. By forming the individual kerfs, the bonding strength of the filler can be increased, and thus there is an advantage that the reliability of weight connection can be increased.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a cross-sectional view of the assembled state of the golf club head and weight according to Embodiment 1 of the present invention, and FIG. 2 is the assembled state of the golf club head and weight according to Embodiment 2 of the present invention. FIG. 3 is a sectional view of the assembled state of the golf club head and the weight according to the third embodiment of the present invention, and FIG. 4 is a sectional view of the golf club head and the weight of the fourth embodiment of the present invention. FIG. 5 is a sectional view of the assembled state of the golf club head and weight according to the fifth embodiment of the present invention. FIG. 6 is a sectional view of the assembled state of the sixth embodiment of the present invention. It is sectional drawing of the assembled state by the coupling structure of a golf club head and a weight.

  The structure of a part of the golf club head / weight coupling structure of the present invention is the same as the conventional golf club head / weight coupling structure shown in FIGS. The structure and function will not be described again in detail.

  Referring to FIG. 1, the golf club head / weight combination structure according to the first embodiment of the present invention includes a head body 10, a weight 20, and a filler 23. The head body 10 is an iron-type head and is made of a metal material having a small specific gravity, and is made of a metal or an alloy such as titanium alloy, stainless steel, ferro-manganese-aluminum alloy, or soft iron. A storage chamber 11 is provided at an appropriate position close to the sole portion of the head body 10, and an opening (not shown) is formed in the storage chamber 11, and the opening is preferably directed upward. Because it is provided, the weight 20 can be fitted and sealed using the filler 30. The weight 20 is made of a metal material having a large specific gravity, for example, a tungsten-ferro-nickel alloy. Since the area of the cross section of the weight 20 is substantially the same as the area of the cross section of the storage chamber 11 of the head body 10, when the weight 20 is provided in the storage chamber 11, the outer peripheral wall of the weight 20 is the inner peripheral wall of the storage chamber 11. The bottom surface of the weight 20 is formed so as to be completely adhered to the bottom surface of the storage chamber 11. Then, in the present invention, the weight 30 positioned inside the storage chamber 11 is covered by filling the filler 30 into the position of the opening of the storage chamber 11 by hot pressing or injection molding. Therefore, the weight 20 is firmly coupled to the inside of the storage chamber 11. The coating manufacturing process can be performed directly at room temperature, and the steps of welding, high-temperature heating, or high-pressure application can be omitted, so that the manufacturing process for assembling the weight 20 can be made quickly and easily. In general, the filler 30 is preferably made of a light material, for example, resin (for example, epoxy resin), polymer compound material, rubber, thermoplastic elastic material, PU elastic filler, carbon, light alloy (for example, titanium alloy). Aluminum alloy) and its viscous composite powder. Since the light material of the filler 30 has the function of absorbing vibration, the filler 30 can absorb the vibration generated at the time of hitting the ball, so that the effect of vibration absorption, stability of the hit ball and grip comfort can be obtained. Can be increased. Further, since the filler 30 is manufactured by a hot press molding or injection molding method, it is possible to obtain a relatively good bond strength and coating effect. Furthermore, since the center of gravity of the entire head body 10 can be adjusted downward by appropriately selecting the specific gravity of the filler 30, the degree of freedom in adjusting the center of gravity of the head body 10 with the filler 30. Can be increased.

  Referring again to FIG. 1, a face plate 12 is coupled to the front surface of the head body 10, and a neck 13 is formed on one side of the head body 10. The face plate 12 is used for hitting a ball, and can be connected to a shaft (not shown) by a neck 13. The face plate 12 can be coupled to the head body 10 by a method such as fitting, press-fitting, hard brazing, and screwing, or can be directly formed on the head body 10 by integral molding. The face plate 12 is not included) and is manufactured to be integrally formed by a method such as precision casting, casting, machining, pressure casting, forging, injection molding, etc., depending on the demand in use, or stepwise joining It can be assembled to be united by the method.

  Referring to FIG. 2, a golf club head / weight combination structure according to a second embodiment of the present invention is posted. Compared with the first embodiment, the head main body 10 of the second embodiment is formed with a storage chamber 11 so that the opening is directed rearward, and the opening of the storage chamber 11 can be formed in various ways according to the demand for the appearance of the product. The shape can be changed, for example, a circle, an ellipse, a regular polygon, a star, and the like, and the shape of the weight 20 is modified so as to correspond. Moreover, the kind and the face color of the filler 30 can be selected appropriately, and the filler 30 in which different kinds or face colors are combined can also be used. In this way, the filler 30 is not only used to cover and fix the weight 20 or to absorb the vibration of the hit ball, but can also increase the visual effect on the appearance of the back surface of the head body 10. .

  Referring to FIG. 3, a golf club head / weight combination structure according to a third embodiment of the present invention is posted. Compared to the first embodiment, the head body 10 of the third embodiment is formed with a storage chamber 11 so that the opening is directed downward, and a material for the filler 30 (for example, PU elastic filler or rubber) is selected appropriately. By doing so, the filler 30 is formed so as to have a cushioning effect and an anti-slip effect by elasticity. Further, the weight 20 can be covered and fixed by the filler 30 and the vibration of the hit ball can be absorbed.

  Referring to FIG. 4, a golf club head / weight combination structure according to a fourth embodiment of the present invention is posted. Compared to the first embodiment, a plurality of kerfs 111 are provided on the inner peripheral wall of the head body 10 of the fourth embodiment where the accommodation chamber 11 is close to the opening. The kerfs 111 are formed, for example, in an annular, point-like or irregular arrangement. As a result, when the filling material 30 is filled into the storage chamber 11, the filling material 30 is firmly coupled to the position of the opening of the storage chamber 11 by the fitting method by the kerf 111. Since it can prevent detachment | leave from the storage chamber 11, the reliability of the coupling | bonding of the weight 20 can be improved. Further, in order to avoid affecting the stress distribution of the hit ball of the face plate 12, the kerf 111 is generally avoided from being installed on the back surface of the face plate 12.

  Referring to FIG. 5, a golf club head / weight combination structure according to a fifth embodiment of the present invention is posted. Compared with the first embodiment, the head main body 10 of the fifth embodiment is a wood-type head, and the head main body 10 is provided with an internal space 100, a storage chamber 11, a face plate 12 and a neck 13. The storage chamber 11 is formed so as to extend from the bottom of the head body 10 toward the internal space 100. A weight 20 can be provided in the storage chamber 11, and a filler 30 can be further filled. Since the weight 20 can be covered and fixed by the filler 30, the manufacturing process of assembling the weight 20 can be made quickly and easily, the vibration of the hit ball can be absorbed, and further according to demand. Thus, the visual effect on the appearance of the back surface of the head body 10 can be increased (as shown in the second embodiment in FIG. 4).

  Referring to FIG. 6, a golf club head / weight combination structure according to a sixth embodiment of the present invention is posted. Compared to the fifth embodiment, a plurality of kerfs 111 are provided on the inner peripheral wall of the head body 10 of the sixth embodiment where the accommodation chamber 11 is close to the opening. The kerfs 111 are formed, for example, in an annular, point-like or irregular arrangement. Thus, when the filling material 30 is filled into the storage chamber 11, the filling material 30 is coupled to the position of the opening of the storage chamber 11 by the fitting method by the cut groove 111, so that the filling material 30 is stored in the storage chamber. Therefore, it is possible to prevent the weight 20 from being detached, so that the reliability of the weight 20 can be increased.

  As described above, according to the conventional golf club head / weight coupling structure shown in FIG. 7, a poor coupling due to welding is likely to occur, the brazing manufacturing process is difficult to operate, and cracks occur in the head body due to compression. However, according to the golf club head and weight coupling structure of the present invention shown in FIG. 1, the weight can be reliably covered and fixed by the filler, so that the weight can be assembled. The manufacturing process can be quickly and easily performed, and further, the effect of absorbing vibration, the stability of the hit ball, the good grip comfort, the reliability of the coupling, the freedom of adjustment of the center of gravity and the visual effect can be enhanced.

  The present invention may be implemented in other ways without departing from the spirit and essential characteristics thereof. Accordingly, the preferred embodiments described herein are illustrative and not limiting.

It is sectional drawing of the assembled state by the coupling structure of the golf club head and weight of Example 1 of this invention. It is sectional drawing of the assembled state by the coupling structure of the golf club head and weight of Example 2 of this invention. It is sectional drawing of the state assembled by the coupling structure of the golf club head and weight of Example 3 of this invention. It is sectional drawing of the assembled state by the coupling structure of the golf club head and weight of Example 4 of this invention. It is sectional drawing of the state assembled by the coupling structure of the golf club head and weight of Example 5 of this invention. It is sectional drawing of the assembled state by the coupling structure of the golf club head and weight of Example 6 of this invention. It is sectional drawing of the assembled state by the coupling structure of the conventional golf club head and a weight. It is sectional drawing of the assembled state by the other conventional golf club head and the combined structure of a weight.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Head main body 100 Internal space 101 Recessed opening 11 Accommodating chamber 111 Groove 12 Face plate 13 Neck 20 Weight 30 Filler

Claims (10)

  A golf club head and weight combination structure comprising a head body (10), a storage chamber (11), a weight (20), and a filler (30), wherein the storage chamber (11) is a part of the head body (10). In addition to being provided at the bottom, an opening is formed in the storage chamber (11), a weight (20) is provided in the storage chamber (11), and a filler (30) seals the opening of the storage chamber (11). Thus, the golf club head and weight coupling structure, characterized in that the weight (20) can be covered and fixed.   The golf club head / weight combination structure according to claim 1, wherein the filler (30) is made of a light material.   The light material can be selected from resin, epoxy resin, polymer compound material, rubber, thermoplastic elastic material, PU elastic filler, carbon, light alloy, titanium alloy, aluminum alloy and viscous composite powder thereof. The golf club head and weight combination structure according to claim 2.   A plurality of kerfs (111) are provided in the inner peripheral wall of the storage chamber (11) close to the opening, and the kerfs (111) can increase the reliability of the coupling of the filler (30). The golf club head / weight combination structure according to claim 1.   The golf club head and weight coupling structure according to claim 1, wherein the opening of the accommodation chamber (11) is provided at the bottom of the head body (10) so as to face upward.   The golf club head / weight coupling structure according to claim 1, wherein the opening of the accommodation chamber (11) is provided at the bottom of the head body (10) so as to be directed rearward.   The golf club head / weight coupling structure according to claim 1, wherein the opening of the accommodation chamber (11) is provided at the bottom of the head body (10) so as to face downward.   The golf club head and weight coupling structure according to claim 1, wherein the head body (10) is an iron type head.   The golf club head and weight coupling structure according to claim 1, wherein the head body (10) is a wood-type head.   The filler (30) is formed by filling the opening of the storage chamber (11) by hot pressing or injection molding, thereby covering and fixing the weight (20) inside the storage chamber (11). The golf club head / weight combination structure according to claim 1, wherein the golf club head / weight connection structure can be used.

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