JP3113023U - Golf club head structure having a thin cover plate - Google Patents

Abstract

A head main body 1 and a lid plate 2 are used. The head body is provided with a face plate 11 and at least one assembly port 13. The lid plate is provided with a thick coupling portion 22 and a thin wall portion 21. The thick joint portion is formed at least in a local area of the back lip edge of the cover plate, and the thin wall portion is formed at other portions on the back surface of the cover plate. The lid plate is configured to be assembled and coupled to the assembly opening of the head main body at least using the thick coupling portion, thereby improving the reliability of the assembly coupling.
[Effect] A thick coupling portion is formed at the lip edge on the back surface of the lid plate, a thin wall portion is formed on the other portion of the back surface of the lid plate, and the lid plate uses the thick coupling portion to couple the head body. As a result, the bonding strength of the thin lid plate can be reliably strengthened, and the assembly reliability can be further improved.
[Selection] Figure 1

Description

  The present invention relates to a golf club head structure having a thin cover plate, and in particular, the cover plate is combined with the head body by forming a thick connection portion at the lip edge on the back surface, and the strength of the connection is enhanced. The present invention relates to a golf club head structure that improves assembly reliability.

  Conventional golf club head structures having a thin cover plate include a head body and a thin crown plate. The head body is provided with a face plate on the front surface, and an opening is formed on the top surface. The thin crown plate is joined to the opening on the upper surface of the head body using welding or brazing techniques, and the thin crown plate has a thickness of 0.7 mm or less and a hardness of Some of them are HRC35 or higher (for example, see Patent Document 1).

Further, the conventional golf club head structure having a thin cover plate includes a thin metal shell and a thin metal sole plate. The thin metal shell is provided with a face plate at the front and an opening at the bottom. Some of the thin metal sole plates are coupled to the opening on the bottom surface of the thin metal shell using a technique such as welding (see, for example, Patent Document 2).
Republic of China Notice No. M256210 US Patent No. 4,429,879

  In the field of golf club heads, the industry further selects the above-mentioned hard metal or non-ferrous metal and uses the above-mentioned lid while ensuring the strength of the lid plate (crown plate or sole plate) structure. By effectively suppressing the thickness of the plate, the capacity of elastic deformation of the lid plate can be relatively increased, or the golf club head can be increased in size. However, when the thin crown plate is thinned, the joint between the lid plate and the opening of the head body is thinned synchronously. As a result, when the welding or brazing manufacturing process is performed, the joint portion of the lid plate and the head body cannot form a sufficient joint strength, so that a crack may occur at the position of welding. When it is severe, the lid plate may fall off, and there is a problem that the service life of the golf club head is relatively shortened. Thus, the golf club head structure having the conventional thin cover plate as described above must be further improved.

  The present invention has been devised in view of such problems, and its purpose is to form a thick joint at the lip edge of the back surface of the cover plate, and to other parts on the back surface of the cover plate. A thin wall part is formed, and the cover plate can be connected to the head body using a thick connecting part, so that the thin cover plate can be securely strengthened and the assembly reliability can be increased. It is an object of the present invention to provide a golf club head structure having a lid plate.

  The first object of the present invention is to form a thick joint at the lip edge on the back of the lid plate, which can be coupled to the head body by the thick joint portion. It is an object of the present invention to provide a golf club head structure having a thin lid plate that can improve the reliability of the golf club.

  A second object of the present invention is to form a thick coupling portion and at least one protruding rib on the back surface of the lid plate, and the thick coupling portion is used to couple with the head body, and the protruding rib reinforces the lid plate. Therefore, an object of the present invention is to provide a golf club head structure having a thin cover plate capable of enhancing the strength of the structure of the thin cover plate.

In order to achieve the above object, a golf club head structure having a thin cover plate according to the present invention is as follows. That is,
Consists of a head body and a cover plate. The head body is provided with a face plate and at least one assembly port. The lid plate is provided with a thick coupling portion and a thin wall portion, the thick coupling portion is formed at least in a local area of the back lip edge of the lid plate, and the thin wall portion is formed at other portions on the back surface of the lid plate, And the thickness of a thick coupling | bond part is formed so that it may become relatively larger than the thickness of a thin wall part. Among them, the thickness of the thick coupling part is 2.0 mm or less, the thickness of the thin wall part is 1.0 mm or less, and the lid plate is assembled and coupled to the assembly port of the head body using at least the thick coupling part. As a result, the reliability of assembly and coupling is enhanced.

  In the golf club head structure having a thin cover plate according to the present invention, the assembly opening can be selectively provided at the position of the crown portion, the sole portion, the side wall portion, and the back portion of the head body. Further, the cover plate can be selected from a crown plate, a sole plate, a side plate, and a back plate. In addition, a stair-like portion is provided in the assembly opening of the head main body, and the stair-like portion can be used to support the thick coupling portion of the lid plate. Further, the width of the thick coupling portion can be selected to be substantially larger than or equal to the width of the stepped portion of the head body assembly port. In addition, an inner flange is provided on the stepped portion of the assembly port, and the inner flange is used to lock the thick coupling portion, thereby increasing the reliability of coupling. In addition, an annular groove is provided in the stepped portion of the assembly port, and a bottom flange is formed so as to correspond to the thick joint portion of the cover plate. The bottom flange of the thick joint portion is an annular groove of the stepped portion. It is possible to increase the reliability of the coupling by locking and entering the inside. In addition, at least one other protruding rib is provided on the back surface of the thin portion of the cover plate, and the protruding rib is formed so that the thickness of the protruding rib is larger than the thickness of the thin portion. It can also be used to strengthen. Also, the protruding rib can be connected to the thick coupling portion. Further, the thickness of the protruding rib is substantially smaller than the thickness of the thick coupling portion, and can be selected to be larger or the same. Further, the direction in which the protruding ribs of the cover plate are arranged can be formed so as not to be parallel to the direction of the cross section of the face plate of the head body.

  According to the golf club head structure having a thin lid plate of the present invention, a thick coupling portion is formed at the lip edge on the back surface of the lid plate and can be coupled to the head body by the thick coupling portion. There is an advantage that the bonding strength can be enhanced and the reliability of the assembly can be increased.

  According to the golf club head structure having a thin lid plate of the present invention, a thick coupling portion and at least one projecting rib are formed on the back surface of the lid plate, and the thick coupling portion is used to couple with the head body. Since the rib is used to reinforce the cover plate, there is an advantage that the strength of the structure of the thin cover plate can be enhanced.

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

  Referring to FIG. 1, the golf club head structure having a thin cover plate of the present invention includes a head body 1 and a cover plate 2 (crown plate). The head body 1 can be selected from the structure of a conventional head such as a wood type, an iron type or a putter type. In the present invention, the wood type head is taken as an example in the following description. I will not explain in detail.

  1 and 2, the head body 1 according to the first embodiment of the present invention is made of a suitable metal, alloy material or non-metal material. The head body 1 is provided with a face plate 11, a hosel 12 and an assembly port 13. The face plate 11 and the hosel 12 belong to a conventional structure, and are formed on the head body 1 by a method such as integral molding, welding, hard brazing, press fitting, screwing, and bonding. The assembly port 13 is provided in a crown portion of the head body 1, and a stepped portion 131 is preferably formed on the inner peripheral surface of the assembly port 13 by a continuous or discontinuous method. The stepped portion 131 is used to assemble and join the lid plate 2.

  1 and 2, the cover plate 2 (crown plate) of the first embodiment of the present invention is also made of a suitable metal, alloy material or non-metal material. The lid plate 2 is provided with a thin wall portion 21 and a thick coupling portion 22. The cover plate 2 has a thick connecting portion 22 formed from the position of the lip edge on the back surface, and a thin wall portion 21 is formed at other portions of the cover plate 2. The thickness of the thick coupling portion 22 is formed to be relatively larger than the thickness of the thin wall portion 21. Further, the thickness of the thick connecting portion 22 is preferably formed so as not to be larger than 2.0 mm, particularly not larger than 1.0 mm. The thickness of the thin wall portion 21 is preferably formed so as not to be larger than 1.0 mm, and in particular not larger than 0.7 mm. The width of the thick coupling portion 22 can be selected to be substantially the same as the width of the stepped portion 131 of the assembly port 13 of the head body 1.

  Referring to FIGS. 2 and 3, at the time of assembly, the cover plate 2 is initially inserted into the assembly port 13 of the head body 1, and the stepped portion 131 of the assembly port 13 connects the thickness coupling portion 22 of the cover plate 2. Used for rudimentary support. Then, an appropriate method is selected and the cover plate 2 and the head body 1 are joined together. For example, conventional welding (for example, tungsten inert gas arc welding), high energy welding method (for example, laser beam welding, plasma arc welding, electron beam welding). ), Brazing, sticking or pressing can be used. When bonding is performed, the thick bonding portion 22 of the cover plate 2 is formed to have a relatively large thickness so that bonding by welding, hard brazing, bonding, or compression is performed. Since all the thick connecting portions 22 can maintain a sufficient structural strength, it is possible to ensure the integrity of the cover plate 2 and to prevent the cover plate 2 from rupturing. A stable coupling relationship with the assembly port 13 can be formed. In addition, the ability of elastic deformation of the cover plate 2 can be increased by reducing the thickness of the thin wall portion 21 of the cover plate 2 as much as possible while maintaining sufficient bonding strength and structural strength. It can help to obtain a thin wall and large volume of the club head.

  4, 5 and 6, a golf club head structure having a thin cover plate according to a second embodiment of the present invention is posted. Compared with the first embodiment, in the second embodiment, the lid plate 2 is selectively provided with the thick coupling portion 22 only in a specific local area of the rear lip edge. For example, the lid plate 2 is selectively attached to the face plate 11. The thick coupling portion 22 is installed on the approaching side. Thereby, in the present invention, the strength of the local structure and the strength of the coupling can be intensively enhanced, and the structure of the lid plate 2 can be simplified. Further, the inner flange 132 can be selectively installed at the stepped portion 131 of the assembly port 13 of the head body 1. When the assembly is basically performed, the stepped portion 131 of the assembly port 13 is used to support the thick connecting portion 22 of the cover plate 2, and the inner flange 132 is used to lock the thick connecting portion 22. As a result, the reliability of coupling can be further increased.

  Referring to FIGS. 7, 8 and 9, a golf club head structure having a thin cover plate according to a third embodiment of the present invention is posted. Compared with the first embodiment, in the third embodiment, the lid plate 2 is provided with the thick connecting portion 22 at the lip edge on the back surface, and at least one protruding rib 23 is selectively provided on the back surface of the thin wall portion 21. Is done. The protruding rib 23 is connected to the thick coupling portion 22, and the thickness of the protruding rib 23 is substantially smaller than the thickness of the thick coupling portion 23 and can be selected to be larger or the same. Must be greater than the thickness of the thin wall portion 21. Further, the width of the thick coupling portion 22 can be selected to be substantially larger than the width of the stepped portion 131 of the assembly port 13 of the head body 1. Furthermore, as shown in FIGS. 7, 8, and 9, the protruding rib 23 can also be selectively formed in an appropriate shape, for example, an arc shape, a long strip shape, or a V shape. However, the direction in which the protruding ribs 23 are arranged is preferably not parallel to the cross-sectional direction in which the face plate 11 is formed. As a result, when the face plate 11 receives the stress of the hit ball and the cover plate 2 is elastically deformed jointly, the protruding rib 23 does not affect the elastic deformation ability of the cover plate 2 and It can further provide good structural strength.

  Referring to FIGS. 10, 11, and 12, a golf club head structure having a thin cover plate according to a fourth embodiment of the present invention is posted. Compared with the first embodiment, the assembly port 13 ′ is installed in the sole portion of the head body 1 in the fourth embodiment. A stepped portion 131 ′ is provided in the assembly port 13 ′, and the assembly port 13 ′ is used to assemble and join the lid plate 2 ′ (sole plate). Similarly, the cover plate 2 'is provided with a thin wall portion 21' and a thick coupling portion 22 '. The thick joint 22 'is optionally provided in the lip edge on the back of the lid plate 2' or in a specific local area of the lip edge. Further, on the basis of the same principle, the head body 1 is also selectively provided with an assembly port (not shown) in the side wall (skirt) or back (rear), whereby a side plate or back plate (see FIG. (Not shown). Thereby, the reliability of the assembly of each type of cover plate can be increased as well. In addition, an annular groove 132 ′ is provided in the stepped portion 131 ′ so as to be recessed, and a bottom flange 221 ′ is formed so as to correspond to the thick coupling portion 22 ′. At the time of elementary assembly, the bottom flange 221 'of the thick coupling portion 22' of the lid plate 2 'can be locked into the annular groove 132' of the stepped portion 131 'so that the reliability of coupling can be improved. Sex can be further increased.

  As described above, according to the golf club head structure having a conventional thin lid plate, only a coupling portion that is too thin can be assembled and coupled to the head body on the thin lid plate, so that the coupling reliability is ensured. However, according to the golf club head structure having the thin cover plate of the present invention shown in FIG. 1, at least a local area of the lip edge on the back surface of the cover plate 2 (crown plate). , The strength of the structure of the lid plate 2 can be reliably enhanced, the strength of the coupling between the lid plate 2 and the head body 1 can be enhanced, and the thin lid Reliability of assembling the plate can be improved.

  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 restrictive.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partially fragmented exploded perspective view showing a golf club head structure according to Embodiment 1 of the present invention. It is an expanded cross section of the local part before the cover plate and head main body of Example 1 of this invention couple | bond together. It is an expanded cross section of the local part after the cover plate of Example 1 of this invention and a head main body completed a coupling | bonding. It is a local fracture | rupture exploded perspective view which shows the golf club head structure of Example 2 of this invention. It is an expanded cross section of the local part before the cover plate of Example 2 of this invention and a head main body couple | bond. It is an expanded cross section of the local part after the cover plate of Example 2 of this invention and a head main body completed a coupling | bonding. It is a local crushing exploded perspective view showing the golf club head structure of Example 3 of the present invention. It is a local fracture | rupture exploded perspective view which shows another golf club head structure of Example 3 of this invention. It is a local fracture | rupture exploded perspective view which shows another golf club head structure of Example 3 of this invention. It is a local crushing disassembled perspective view which shows the golf club head structure of Example 4 of this invention. It is an expanded cross section of the local part before the cover plate and head main body of Example 4 of this invention couple | bond together. It is an expanded cross section of the local part after the cover plate of Example 4 of this invention and a head main body completed a coupling | bonding.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Head main body 11 Face plate 12 Hosel 13 Assembly port 131 Stepped part 132 Inner flange 13 'Assembly port 131' Stepped part 132 'Annular groove 2 Cover plate (crown plate)
21 Thin wall portion 22 Thick coupling portion 2 'Cover plate (sole plate) 21' Thin wall portion 22 'Thick coupling portion 221' Bottom flange 23 Projection rib

Claims (11)

  A golf club head structure having a thin cover plate composed of a head body (1) and a cover plate (2), wherein the head body (1) has a face plate (11) and at least one assembly port (13). The lid plate (2) is provided with a thick coupling portion (22) and a thin wall portion (21), and the thick coupling portion (22) is at least in the region of the back lip edge of the lid plate (2). The thin wall portion (21) is formed at other portions on the back surface of the lid plate (2), and the thickness of the thick coupling portion (22) is relatively larger than the thickness of the thin wall portion (21). The thickness of the thick coupling portion (22) is 2.0 mm or less, the thickness of the thin wall portion (21) is 1.0 mm or less, and the lid plate (2) is at least thick. By assembling and coupling to the assembly port (13) of the head body (1) using the coupling portion (22), Golf club head structure having a thin cover plate, characterized in that to improve the reliability.   The golf club head structure having a thin cover plate according to claim 1, wherein the assembly opening (13) is selectively provided at a position of a crown portion, a sole portion, a side wall portion, and a back portion of the head body (1). .   The golf club head structure having a thin cover plate according to claim 1, wherein the cover plate (2) is selected from a crown plate, a sole plate, a side plate, and a back plate.   The head opening (13) of the head body (1) is additionally provided with a stepped portion (131), and the stepped portion (131) is used to support the thick connecting portion (22) of the lid plate (2). The golf club head structure having a thin cover plate according to claim 1.   The width of the thick coupling portion (22) is selected to be substantially larger than or equal to the width of the stepped portion (131) of the assembly port (13) of the head body (1). A golf club head structure having the thin lid plate described.   The stair-like portion (131) of the assembly port (13) is additionally provided with an inner flange (132), and the inner flange (132) is used to lock the thick coupling portion (22), thereby 5. The golf club head structure having a thin cover plate according to claim 4, wherein the reliability is increased.   In addition, an annular groove (132 ′) is provided in the stepped portion (131 ′) of the assembly port (13 ′), and further, the bottom is formed so as to correspond to the thick coupling portion (22 ′) of the lid plate (2 ′). A flange (221 ′) is formed, and the bottom flange (221 ′) of the thick coupling portion (22 ′) is locked into the annular groove (132 ′) of the stepped portion (131 ′) to enter, 5. The golf club head structure having a thin cover plate according to claim 4, wherein the coupling reliability is increased.   At least one other protruding rib (23) is provided on the back surface of the thin part (21) of the cover plate (2), and the thickness of the protruding rib (23) is larger than the thickness of the thin part (21). The golf club head structure having a thin cover plate according to claim 1, wherein the projecting rib is used to reinforce the strength of the structure of the thin portion.   The golf club head structure having a thin cover plate according to claim 8, wherein the protruding rib (23) is connected to the thick coupling portion (22).   9. A golf ball with a thin lid according to claim 8, wherein the thickness of the protruding rib (23) is selected to be substantially smaller than, greater than or equal to the thickness of the thick coupling portion (23). Club head structure.   9. The direction in which the protruding ribs (23) of the lid plate (2) are arranged is not parallel to the direction of the cross section of the face plate (11) of the head body (1). Motor structure.

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