Golf club head comprising hollowed-out buffering piece and manufacturing method of golf club head

Abstract

The invention discloses a golf club head comprising a hollow buffer piece and a manufacturing method of the golf club head, and relates to the technical field of golf equipment, in particular to the golf club head comprising a club head body and the hollow buffer piece, and the hollow buffer piece comprises a supporting frame and a three-dimensional hollow structure arranged in the supporting frame; the shape, the size and the position of the supporting frame are matched with the shape, the size and the position of the mounting cavity of the rod head body, the three-dimensional hollow structure is formed by a plurality of connecting rods which are distributed in a staggered mode, and the thickness, the distribution density and the length of the connecting rods are adjustable; and the three-dimensional hollow structure and the supporting frame are integrally formed. An elastic buffering structure is improved, by designing parameters such as the thickness, the distribution density and the length of the connecting rod, the distribution density conditions of all areas are different, buffering and feedback correction can be achieved when any area of the hitting face is hit, the direction and the trajectory of a golf ball are consistent and stable when the golf ball is hit in any area of the hitting face, and the hitting effect is good. And the hitting sound effect is improved.

Description

Technical Field

[0001] This invention relates to the field of golf equipment technology, and in particular to a golf club head including a hollowed-out buffer component and a method for manufacturing the same. Background Technology

[0002] A golf club generally consists of a clubhead, a striking face, and a club tube. During a swing, the clubhead strikes the golf ball through the striking face, giving the ball its flight or roll. The impact of the clubhead's strike significantly influences the golf ball's trajectory.

[0003] To improve the hitting performance of golf clubheads and reduce the impact feedback to the player's hand during impact, current clubhead designs often feature a hollow structure with a glue injection port on the side wall. This allows for the injection or filling of PU (polyurethane) material into the clubhead, which then contacts the hitting surface and cushions the impact. This hollow structure can also alter the weight of the golf club, adjusting the center of gravity and optimizing the moment of inertia. However, this method can lead to uneven filling, as it's difficult to ensure a completely uniform and dense filling of all areas during glue injection. This can cause the clubhead's center of gravity to shift after a period of use, affecting the accuracy and stability of the shot.

[0004] In another known clubhead design, a cushioning block with elasticity is installed on the back of the clubhead. However, existing cushioning blocks are mostly solid structures, and if the installation position and weight distribution of the cushioning block are not properly arranged, it may cause the center of gravity of the clubhead to shift, which also affects the accuracy and stability of the shot. Furthermore, solid cushioning components are installed in the mounting cavity with an interference fit as much as possible to ensure a secure installation. Once installed, they are usually not removable, and the weight, elasticity, and cushioning function of the clubhead are all fixed, resulting in low adjustability.

[0005] Therefore, it is necessary to continuously modify the structure of the golf clubhead itself, especially the elastic cushioning structure, to improve the hitting performance of the golf clubhead, such as impact elasticity and rebound direction. In addition, it is also necessary to meet the requirements of quick assembly and disassembly, and to ensure adjustability of the center of gravity, elastic cushioning, and impact direction. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, one of the objectives of the present invention is to provide a golf club head including a hollowed-out buffer element.

[0007] The second objective of this invention is to provide a method for manufacturing a golf club head including a hollowed-out buffer component.

[0008] One objective of this invention is achieved through the following technical solution: a golf club head including a hollowed-out buffer, comprising a club head body and a hollowed-out buffer, wherein the club head body has a striking surface, and the hollowed-out buffer includes a support frame and a three-dimensional hollowed-out structure disposed inside the support frame; the shape, size, and position of the support frame are adapted to the mounting cavity of the club head body, and the three-dimensional hollowed-out structure is formed by multiple connecting rods distributed in an alternating manner, wherein the thickness, distribution density, and length of the connecting rods are adjustable; the three-dimensional hollowed-out structure is integrally formed with the support frame.

[0009] Preferably, the rod head body has a closed mounting cavity inside, and the hollowed-out buffer component is filled into the mounting cavity as a filler.

[0010] Alternatively, the clubhead body may have a striking face, and a mounting chamber on the back of the striking face for mounting the hollowed-out buffer, the hollowed-out buffer being detachably mounted in the mounting chamber.

[0011] Preferably, the three-dimensional hollow structure includes a first lattice column disposed on the outer periphery and a second lattice column disposed on the inner periphery. Both the first and second lattice columns are formed by multiple connecting rods interlacing and interweaving to form a three-dimensional hollow structure. The connecting rods of the first and second lattice columns each have a diameter, and the diameter of the second lattice column is greater than that of the first lattice column.

[0012] Preferably, the connecting rod on the second lattice column includes a first support rod extending perpendicularly to the striking surface and a second support rod inclined in opposite directions at both ends of the first support rod; the two ends of the first support rod coincide with the intersection point on the connecting rod of the first lattice column to form an external convergence point, and the second support rods on two adjacent first support rods intersect to form an internal convergence point.

[0013] Preferably, the three-dimensional hollow structure is not uniformly distributed. The diameter of the first support rod is larger closer to the center of the striking surface, and the distribution density of the first and second support rods is greater. The length of the first support rod located on both sides of the striking surface is less than the length of the first support rod located at the center of the striking surface.

[0014] Preferably, the first lattice column includes an upper first lattice column, a bottom first lattice column, and a side first lattice column. The upper first lattice column is disposed on the upper surface of the second lattice column, the bottom first lattice column is disposed on the lower surface of the second lattice column, and the side first lattice column is disposed on the outer peripheral side surface of the second lattice column.

[0015] Preferably, the hollowed-out buffer further includes a sheet-shaped striking surface disposed on the outer side of the three-dimensional hollowed-out structure. The sheet-shaped striking surface is located inside the support frame and is flush with the surface of the support frame. After the sheet-shaped striking surface is installed in the mounting chamber, it is completely in contact with the back of the striking surface.

[0016] The sheet-like striking surface, the three-dimensional hollow structure, and the support frame are all integrally formed using additive manufacturing processes.

[0017] The sheet-shaped striking surface is recessed with crisscrossing grooves, and an annular cavity is left between the sheet-shaped striking surface and the support frame. Both the grooves and the annular cavity are used to adhere glue.

[0018] Preferably, the hollowed-out buffer further includes a snap-fit ​​part, which is disposed on the outside of the three-dimensional hollowed-out structure through a planar portion. The top of the snap-fit ​​part is provided with a rounded right-angled snap-fit ​​surface, and the bottom of the snap-fit ​​part is provided with a guide inclined surface that gradually narrows. The inner wall of the mounting cavity of the rod head body is provided with a limiting groove that matches the shape and position of the snap-fit ​​part.

[0019] Preferably, the distribution density of the first lattice column and the second lattice column is adjustable, and is determined by the interaction of their respective materials, the number of their respective connecting rods, and their distribution connection method; the first lattice column and the second lattice column are both made of the same elastic polymer material, or made of the same stretchable metal material.

[0020] The present invention also provides a method for manufacturing a golf club head including a hollowed-out buffer as described above, comprising the following steps:

[0021] (1) Construction of the clubhead body:

[0022] The clubhead body is made of a first material, and the clubhead body is manufactured using one of the following methods: precision casting, powder metallurgy, stamping, and forging. The first material includes one of the following: metallic materials, metallic alloys, or non-metallic materials.

[0023] (2) Fabrication of hollowed-out cushioning components:

[0024] The hollowed-out buffer component is manufactured separately, using a second material, and integrally formed through an additive manufacturing process to obtain the hollowed-out buffer component; the second material is an elastic polymer material or a metal material with stretching elasticity;

[0025] (3) The order of steps (1) and (2) can be adjusted;

[0026] (4) Install the hollowed-out buffer obtained in step (2) into the mounting cavity of the rod head body obtained in step (1).

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] 1. This invention improves the elastic buffer structure by designing it as a three-dimensional hollow structure. By designing parameters such as the thickness, distribution density, and length of the connecting rod, the distribution density of each area is different, so that buffering and feedback correction can be achieved when hitting any area of ​​the hitting surface. Furthermore, the direction and trajectory of the golf ball are consistent and stable when hitting any area of ​​the hitting surface, thus improving the sound effect of the shot.

[0029] 2. The elastic buffer structure of this invention is designed as a detachable and replaceable part, which can adapt to the different players' needs for the hitting performance of the clubhead. It is easy to disassemble, highly applicable, and highly adjustable in terms of center of gravity, elastic buffer, and hitting direction.

[0030] 3. The three-dimensional hollow structure of this invention is rigid inside and flexible outside. The rigid hollow structure inside ensures the strength and stability of the ball head, and also ensures the elasticity and cushioning performance of the filling material, achieving an excellent balance between cushioning performance and ball head strength. The flexible hollow design outside is used to quickly dissipate the shock force generated during the shot, significantly improving the feel after the shot, effectively reducing the burden on the palm of the hand from club vibration, and improving the hitting feel of the golf ball. At the same time, it can also serve as a handle for disassembly, facilitating the disassembly of the cushioning component.

[0031] 4. Compared to traditional buffer structure designs, the non-uniform design of the three-dimensional hollow structure in this invention, with its varying thickness, density, and connecting rod thickness, gives the hollow buffer component better structural stability and resistance to deformation. This allows it to maintain a stable state under different hitting conditions, ensuring consistent golf ball trajectory. Furthermore, the thickness of the hitting surface and the three-dimensional hollow structure of this invention can be uniform or non-uniform, allowing for customized adjustments to meet the individual needs of different golf ball users and their personalized requirements for hitting performance.

[0032] 5. In view of the defect of non-removable buffer components in the existing technology, this application can meet the installation and bonding strength between the buffer component and the main body of the rod head in the use state by designing a snap-fit ​​part, while also meeting the convenience of disassembly. The required hollow buffer component can be disassembled and replaced by prying the first lattice column with external force. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of a golf club head according to a preferred embodiment of the present invention;

[0034] Figure 2 This is a disassembly diagram of the golf club head according to a preferred embodiment 2 of the present invention;

[0035] Figure 3 This is a schematic diagram of the hollowed-out buffer component in the preferred embodiment 2 of the present invention;

[0036] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0037] Figure 5 This is a structural schematic diagram of the hollowed-out buffer component from another angle, representing a preferred embodiment of the present invention.

[0038] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0039] Figure 7 for Figure 5 Enlarged view of point C in the middle;

[0040] Figure 8 This is a schematic diagram of the structure of a golf club head at another angle, according to a preferred embodiment of the present invention.

[0041] Figure 9 for Figure 8 Schematic diagram of the cross section of the DD line;

[0042] Figure 10 for Figure 8 A schematic diagram of the cross-section of the EE line.

[0043] In the picture:

[0044] 100. Golf club head;

[0045] 1. Clubhead body; 11. Striking face; 12. Mounting chamber; 13. Limiting groove;

[0046] 2. Hollowed-out cushioning component;

[0047] 21. Support frame;

[0048] 22. Three-dimensional hollow structure; 221. First lattice column; 221a. Upper first lattice column; 221b. Bottom first lattice column; 221c. Side first lattice column; 2211. Connecting rod; 2212. Node; 222. Second lattice column; 2221. First support rod; 2222. Second support rod; 223. External convergence point; 224. Internal convergence point;

[0049] 23. Sheet-shaped striking surface; 231. Groove; 232. Annular cavity;

[0050] 24. Buckle part; 241. Round right-angled engagement surface; 242. Guide inclined surface. Detailed Implementation

[0051] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0052] Example 1

[0053] A golf club head includes a club head body and a hollowed-out buffer component. The club head body has a closed mounting cavity inside, and the hollowed-out buffer component fills the mounting cavity as a filler. In this embodiment, the hollowed-out buffer component is a hollowed-out high-elasticity polymer lattice made of the same elastic polymer material, or a hollowed-out high-elasticity metal lattice made of the same stretchable stainless steel material.

[0054] The hollowed-out buffer component includes a support frame and a three-dimensional hollowed-out structure disposed inside the support frame. The shape, size, and position of the support frame are adapted to the mounting cavity of the rod head body. The three-dimensional hollowed-out structure is formed by multiple connecting rods distributed in an interlaced manner, and the thickness, distribution density, and length of the connecting rods are adjustable. The three-dimensional hollowed-out structure is integrally formed with the support frame. The three-dimensional hollowed-out structure consists of multiple X-shaped, star-shaped, or honeycomb-like three-dimensional connecting rods.

[0055] In this embodiment, the elastic buffer structure is improved by designing it as a three-dimensional hollow structure. By designing parameters such as the thickness, distribution density, and length of the connecting rod, the distribution density of each area is different, so that buffering and feedback correction can be achieved when hitting any area of ​​the hitting surface. Furthermore, the direction and trajectory of the golf ball are consistent and stable when hitting any area of ​​the hitting surface, thus improving the sound effect of the shot.

[0056] Example 2

[0057] like Figure 1-10 As shown, a golf club head 100 includes a club head body 1 and a hollowed-out buffer 2. The club head body 1 has a striking face 11 and a mounting chamber 12 disposed on the back of the striking face 11 for mounting the hollowed-out buffer 2. The hollowed-out buffer 2 includes a support frame 21 and a three-dimensional hollowed-out structure 22 disposed inside the support frame 21. The shape, size, and position of the support frame 21 are adapted to the mounting chamber 12. The three-dimensional hollowed-out structure 22 is formed by multiple connecting rods distributed in an alternating manner. The thickness, distribution density, and length of the connecting rods are adjustable. The three-dimensional hollowed-out structure 22 is integrally formed with the support frame 21, and the hollowed-out buffer 2 is detachably installed in the mounting chamber 12. In this embodiment, the hollowed-out buffer is a hollowed-out high-elasticity polymer lattice made of the same elastic polymer material, or a hollowed-out high-elasticity metal lattice made of the same stretchable and elastic stainless steel material.

[0058] In this embodiment, the elastic buffer structure is improved by designing it as a three-dimensional hollow structure 22. By designing parameters such as the thickness, distribution density, and length of the connecting rods, the distribution density varies in different areas. This allows for buffering and feedback correction when any area of ​​the striking surface 11 is hit, and ensures that the golf ball's direction and trajectory are consistent and stable when hit from any area of ​​the striking surface 11, improving the sound effect of the shot. Furthermore, this elastic buffer structure is designed as a detachable and replaceable part, adaptable to the different players' needs for clubhead performance. It is easy to disassemble, highly applicable, and offers high adjustability in center of gravity, elastic buffering, and shot direction.

[0059] As a further preferred embodiment, the three-dimensional hollow structure 22 can be multiple X-shaped / rice-shaped / honeycomb-like three-dimensional support structures. Preferably, the three-dimensional hollow structure 22 of the present invention includes a first lattice column 221 disposed on the outer periphery and a second lattice column 222 disposed on the inner periphery. Both the first lattice column 221 and the second lattice column 222 are formed by multiple different connecting rods interlacing and interweaving. The connecting rods of the first lattice column 221 and the second lattice column 222 each have a diameter. Preferably, the diameter of the second lattice column 222 is... The width is greater than the diameter of the first lattice column 221, forming a three-dimensional hollow structure 22 with a rigid inner core and a flexible outer core. The rigid hollow structure ensures the strength and stability of the ball head, and also ensures the elasticity and cushioning performance of the filling material, achieving an excellent balance between cushioning performance and ball head strength. The flexible hollow design on the outside is used to quickly dissipate the shock force generated during the shot, significantly improving the feel after the shot, effectively reducing the burden of club vibration on the palm, improving the feel of hitting the golf ball, and can also serve as a handle for disassembly, facilitating the disassembly of the cushioning component.

[0060] As a further preferred embodiment, the first lattice column 221 has multiple connecting rods 2211 and multiple nodes 2212, with the multiple connecting rods 2211 interlacing to form multiple nodes; while the connecting rods on the second lattice column 222 include a first support rod 2221 extending perpendicularly to the striking surface 11 and a second support rod 2222 inclined in opposite directions at both ends of the first support rod 2221; the two ends of the first support rod 2221 respectively coincide with some intersection nodes on the connecting rods of the first lattice column 221 to form an external convergence point 223, and the second support rods 2222 on two adjacent first support rods 2221 interlacing to form an internal convergence point 224.

[0061] The design of the external convergence point 223 and the internal convergence point 224 in this application can further enhance the connection strength and connection stability of the first lattice column 221 and the second lattice column 222, which is beneficial to providing an ultra-stable three-dimensional structure.

[0062] As a further preferred embodiment, both the first support rod 2221 and the second support rod 2222 have a diameter width, and the diameter width of the first support rod 2221 and the diameter width of the second support rod 2222 are adjustable; the diameter width of the first support rod 2221 and the diameter width of the second support rod 2222 are the same, and both are greater than the diameter width of the connecting rod 2211 on the first lattice column 221.

[0063] As a further preferred embodiment, the three-dimensional hollow structure 22 is not uniformly distributed. The diameter of the first support rod 2221 is larger closer to the center of the striking surface 11, and the distribution density of the first support rod 2221 and the second support rod 2222 is greater. The length of the first support rod 2221 located on both sides of the striking surface 11 is smaller than the length of the first support rod 2221 located at the center of the striking surface 11. Figure 8-10 As shown.

[0064] Compared to traditional buffer structure designs, the three-dimensional hollow structure 22 in this embodiment features a non-uniform design in terms of thickness distribution, density distribution, and connecting rod thickness. This gives the hollow buffer 2 better structural stability and resistance to deformation, enabling it to maintain a stable state under different hitting conditions and ensuring the consistency of the golf ball's trajectory.

[0065] In addition, the thickness of the striking surface and the three-dimensional hollow structure 22 of the present invention can be uniform or non-uniform, and can be customized according to the needs of different golf ball users to meet the personalized needs of different users for hitting performance.

[0066] As a further preferred embodiment, the first lattice column 221 includes an upper first lattice column 221a, a bottom first lattice column 221b, and a side first lattice column 221c. The upper first lattice column 221a is disposed on the upper surface of the second lattice column 222, the bottom first lattice column 221b is disposed on the lower surface of the second lattice column 222, and the side first lattice column 221c is disposed on the outer peripheral side surface of the second lattice column 222.

[0067] As a further preferred embodiment, the hollowed-out buffer 2 also includes a sheet-shaped striking surface 23 disposed on the outer side of the three-dimensional hollowed-out structure 22. The sheet-shaped striking surface 23 is located inside the support frame 21 and is flush with the surface of the support frame 21. After the sheet-shaped striking surface 23 is installed in the mounting chamber 12, it is completely in contact with the back of the striking surface 11.

[0068] The sheet-like striking surface 23, the three-dimensional hollow structure 22, and the support frame 21 are all integrally formed from the same material using an additive manufacturing process.

[0069] The sheet-like striking surface 23 is recessed with crisscrossing grooves 231, and an annular cavity 232 is provided between the sheet-like striking surface 23 and the support frame 21. Both the grooves and the annular cavity are used for adhering adhesive. The design of the grooves 231 and the annular cavity 232 can improve the adhesive adhesion of the buffer component fixed with adhesive, thereby further improving the fit between the hollow buffer component and the striking surface 11 of the clubhead body 1, and optimizing the striking effect of the striking surface. More preferably, the adhesive is selected as an adhesive with a certain elasticity after curing, such as modified silane polyether adhesive, hot melt adhesive, etc.

[0070] As a further preferred embodiment, the hollowed-out buffer component 2 also includes a latching part 24, which is disposed on the outside of the three-dimensional hollowed-out structure 22 via a planar portion. The latching part 24 has a rounded right-angled engaging surface 241 at its top and a gradually narrowing guide inclined surface 242 at its bottom. The inner wall of the mounting chamber 12 of the rod head body 1 is provided with a limiting groove 13 that matches the shape and position of the latching part 24. Preferably, the latching part 24, the support frame 21, the three-dimensional hollowed-out structure 22, and the sheet-like striking surface 23 are integrally formed from the same material.

[0071] To address the issue of non-removable buffer components in existing technologies, this application addresses this by designing a snap-fit ​​part 24. This design ensures sufficient strength for the installation and connection between the buffer component and the rod head body 1 during use, while also providing ease of disassembly. The required hollowed-out buffer component 2 can be disassembled and replaced by prying the first lattice column 221 with external force.

[0072] As a further preferred embodiment, the distribution density of the first lattice column 221 and the second lattice column 222 is adjustable, determined by the interaction of their respective materials, the number of their respective connecting rods, and their distribution connection method. Preferably, the entire hollow buffer component 2 is made of the same material, that is, the support frame 21, the first lattice column 221, and the second lattice column 222 are all made of the same elastic polymer material, or the same stretchable stainless steel material. The elastic polymer material is selected from one of the following: polyurethane (PU), thermoplastic polyurethane (TPU), thermoplastic elastomer (TPE), high-density ethylene copolymer ionomer, fatty acid-modified ethylene copolymer ionomer, highly amorphous ethylene copolymer ionomer, ethylene acrylate terpolymer ionomer, and ethylene copolymer containing magnesium ionomer. The stretchable stainless steel material is selected from 17-4 stainless steel, which has a large elastic coefficient and a high elastic modulus. The inventors discovered that the elastic polymer material TPE possesses high resilience, suitable compressive modulus, high durability, and fatigue resistance. When applied to the cushioning material of golf club heads, compared to conventional PU materials, the number of impacts a golf club head can withstand increases by 45%. Furthermore, the stiffness, compressibility, and energy transfer characteristics of the cushioning layer can be precisely controlled, thereby "fine-tuning" the ball's flight distance, spin, and feel. Available TPE materials include, but are not limited to, those from Guangzhou Kaide Thermoplastic Elastomer TPE, or the Thermolast K series or Thermolast R series from German company KEB.

[0073] This application also provides a method for manufacturing a golf club head including the hollowed-out buffer 2 as described above, comprising the following steps:

[0074] (1) Fabrication of the club head body 1:

[0075] The club head body 1 is made of a first material, and the club head body 1 is manufactured by one of the following methods: precision casting, powder metallurgy, stamping, and forging. The first material includes one of the following: metallic materials, metallic alloys, or non-metallic materials.

[0076] Among them, metallic materials include aluminum-based materials, magnesium-based materials, steel-based materials, titanium-based materials, and any combination thereof.

[0077] (2) Fabrication of hollowed-out buffer component 2:

[0078] The hollowed-out buffer 2 is manufactured separately using a second material and integrally formed through additive manufacturing (3D printing). The second material is either an elastic polymer or a metal material with stretching elasticity. The elastic polymer material is selected from one of the following: thermoplastic polyurethane (TPU), thermoplastic elastomer (TPE), high-density ethylene copolymer ionomer, fatty acid-modified ethylene copolymer ionomer, highly amorphous ethylene copolymer ionomer, ethylene acrylate terpolymer ionomer, or ethylene copolymer containing magnesium ionomer. The metal material with stretching elasticity is selected from stainless steel. Preferably, the entire hollowed-out buffer 2 is made of the same material, TPE.

[0079] (3) The order of steps (1) and (2) can be adjusted;

[0080] (4) Install the hollowed-out buffer 2 obtained in step (2) into the mounting chamber 12 of the rod head body 1 obtained in step (1).

[0081] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A golf club head including a hollowed-out buffer element, characterized in that, The device includes a clubhead body and a hollowed-out buffer component. The clubhead body has a striking surface, and the hollowed-out buffer component includes a support frame and a three-dimensional hollowed-out structure disposed inside the support frame. The shape, size, and position of the support frame are adapted to the mounting cavity of the clubhead body. The three-dimensional hollowed-out structure is formed by multiple connecting rods distributed in an interlaced manner, and the thickness, distribution density, and length of the connecting rods are adjustable. The three-dimensional hollowed-out structure is integrally formed with the support frame.

2. The golf club head including a hollowed-out buffer element as described in claim 1, characterized in that, The main body of the rod head has a closed mounting cavity inside, and the hollowed-out buffer component is filled into the mounting cavity as a filler. Alternatively, the clubhead body may have a striking face, and a mounting chamber on the back of the striking face for mounting the hollowed-out buffer, the hollowed-out buffer being detachably mounted in the mounting chamber.

3. The golf club head including a hollowed-out buffer element as described in claim 1, characterized in that, The three-dimensional hollow structure includes a first lattice column disposed on the outer periphery and a second lattice column disposed on the inner periphery. Both the first and second lattice columns are formed by multiple connecting rods interlacing and interweaving to form a three-dimensional hollow structure. The connecting rods of the first and second lattice columns each have a diameter, and the diameter of the second lattice column is greater than that of the first lattice column.

4. The golf club head including a hollowed-out buffer element as described in claim 3, characterized in that, The connecting rod on the second lattice column includes a first support rod extending perpendicularly to the striking surface and a second support rod inclined in opposite directions at both ends of the first support rod; the two ends of the first support rod coincide with the intersection point on the connecting rod of the first lattice column to form an external convergence point, and the second support rods on two adjacent first support rods intersect to form an internal convergence point.

5. The golf club head including a hollowed-out buffer element as described in claim 4, characterized in that, The three-dimensional hollow structure is not uniformly distributed. The diameter of the first support rod is larger the closer it is to the center of the striking surface, and the greater the distribution density of the first and second support rods. The length of the first support rod located on both sides of the striking surface is smaller than the length of the first support rod located at the center of the striking surface.

6. The golf club head including a hollowed-out buffer element as described in claim 3, characterized in that, The first lattice column includes an upper first lattice column, a bottom first lattice column, and a side first lattice column. The upper first lattice column is disposed on the upper surface of the second lattice column, the bottom first lattice column is disposed on the lower surface of the second lattice column, and the side first lattice column is disposed on the outer peripheral side surface of the second lattice column.

7. The golf club head including a hollowed-out buffer element as described in any one of claims 1-6, characterized in that, The hollowed-out buffer also includes a sheet-shaped striking surface disposed on the outer side of the three-dimensional hollowed-out structure. The sheet-shaped striking surface is located inside the support frame and is flush with the surface of the support frame. After the sheet-shaped striking surface is installed in the mounting chamber, it is completely in contact with the back of the striking surface. The sheet-like striking surface, the three-dimensional hollow structure, and the support frame are all integrally formed by additive manufacturing process. The sheet-shaped striking surface is recessed with crisscrossing grooves, and an annular cavity is left between the sheet-shaped striking surface and the support frame. Both the grooves and the annular cavity are used to adhere glue.

8. The golf club head including a hollowed-out buffer element as described in any one of claims 1-6, characterized in that, The hollowed-out buffer also includes a snap-fit ​​part, which is set on the outside of the three-dimensional hollowed-out structure through a flat part. The top of the snap-fit ​​part is provided with a rounded right-angled snap-fit ​​surface, and the bottom of the snap-fit ​​part is a guide inclined surface that gradually narrows. The inner wall of the mounting cavity of the rod head body is provided with a limiting groove that matches the shape and position of the snap-fit ​​part.

9. The golf club head including a hollowed-out buffer element as described in any one of claims 3-6, characterized in that, The distribution density of the first lattice column and the second lattice column is adjustable, and is determined by the interaction of their respective materials, the number of their respective connecting rods, and their distribution connection method; the first lattice column and the second lattice column are both made of the same elastic polymer material, or made of the same stretchable metal material.

10. A method for manufacturing a golf club head including a hollowed-out buffer element as described in any one of claims 1-9, characterized in that, Includes the following steps: (1) Construction of the clubhead body: The clubhead body is made of a first material, and the clubhead body is manufactured using one of the following methods: precision casting, powder metallurgy, stamping, and forging. The first material includes one of the following: metallic materials, metallic alloys, or non-metallic materials. (2) Fabrication of hollowed-out cushioning components: The hollowed-out buffer component is manufactured separately, using a second material, and integrally formed through an additive manufacturing process to obtain the hollowed-out buffer component; the second material is an elastic polymer material or a metal material with stretching elasticity; (3) The order of steps (1) and (2) can be adjusted; (4) Install the hollowed-out buffer obtained in step (2) into the mounting cavity of the rod head body obtained in step (1).

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