TW202146086A - Crown cover of golf head and golf head having the same - Google Patents

Abstract

A crown cover of golf head and a golf head having the same are provided. The crown cover is configured to be disposed on a non-metallic head body of the golf head, in which the non-metallic head body has a hitting surface. The crown cover includes a cover body and plural rib structures. The cover body has an outer surface and an inner surface. The rib structures are disposed on the inner surface. Each of the rib structures has a height, and the heights vary with varied distances between the respective rib structures and the hitting surface.

Description

Golf head caps and golf heads

The present disclosure relates to a golf head cap and a golf head, and more particularly, to a lightweight golf head cap with both shock absorption and cushioning functions, and a golf head using the golf head cap.

Golf has become one of the most popular leisure sports at present, and the design of golf heads tends to be diversified in response to the different demands on the function and effect of the swing. In order to change the center of gravity and the degree of freedom of the weight of the golf head, the relevant industry currently uses carbon fiber composite materials to manufacture some parts of the golf head.

However, although the components of the golf head made of carbon fiber composite materials have the advantages of thin thickness and light weight, they are also easily deformed by external force or have the problem of insufficient strength.

Therefore, one objective of the present disclosure is to provide a golf head cover and a golf head, which can reduce the overall thickness and improve the overall structural strength through the design of the rib structure of the golf head cover.

In accordance with the above objectives of the present disclosure, a golf head cover is provided. The golf head cap is configured to be mounted on the head body of the golf head, wherein the head body has a ball striking surface. The golf head cover includes a non-metal cover body and several rib structures. The non-metallic cap body has opposing outer and inner surfaces. The rib structures are provided on the inner surface, wherein each rib structure has a height, and the heights vary with the distance between the rib structure and the ball striking surface.

According to an embodiment of the present disclosure, the height of the rib structure closer to the ball striking surface is smaller than the height of the rib structure farther from the ball striking surface.

According to an embodiment of the present disclosure, the surface of each of the above-mentioned rib structures close to the ball striking face has a slope, wherein the surface slope of the rib structures close to the ball striking face is gentler than that of the rib structures farther from the ball striking face.

According to an embodiment of the present disclosure, the above-mentioned non-metal top cover body is a shell structure which is formed by stacking an appearance layer and a plurality of unidirectional fiber layers together.

According to an embodiment of the present disclosure, the above-mentioned unidirectional fiber layer includes a plurality of first-direction fiber layers and a plurality of second-direction fiber layers, wherein the fiber extension direction of the first-direction fiber layers is perpendicular to the normal direction of the ball striking surface. , the fiber extension direction of the second-direction fiber layer is parallel to the normal direction of the hitting face, and one of the first-direction fiber layers is adjacent to the appearance layer.

According to an embodiment of the present disclosure, the above-mentioned non-metal top cover body is a shell structure composed of an appearance layer, at least one metal sheet structure, and a plurality of unidirectional fiber layers stacked together, wherein the metal sheet structure is disposed adjacent to each other. between the unidirectional fiber layers.

According to an embodiment of the present disclosure, the above-mentioned non-metal top cover body is a shell structure composed of an appearance layer, at least one metal sheet structure, and a plurality of unidirectional fiber layers stacked together, wherein the metal sheet structure is disposed on the appearance layer. and between the unidirectional fiber layers adjacent to the appearance layer, and a part of the metal sheet structure exposes the appearance layer.

According to an embodiment of the present disclosure, the above-mentioned metal sheet structure is located at a part of the non-metallic top cover body close to the ball striking surface, and the inner surface of the part of the non-metallic top cover body is not provided with a rib structure.

According to an embodiment of the present disclosure, the above-mentioned rib structure is formed by two unidirectional fiber layers closest to the inner surface of the non-metal cover body.

In accordance with the above objectives of the present disclosure, a golf head is provided. The golf head includes a head body and the aforementioned golf head cap. The golf head cap is provided on the head body.

From the above, it can be seen that the height and shape of the rib structure of the golf head cover of the present disclosure vary with the distance from the ball striking surface, thereby simultaneously reducing the thickness of the golf head cover and improving its strength, and further The golf head cover can withstand different hitting force and can provide deformation resilience. On the other hand, a metal sheet structure can also be added to the inside of the golf head cap to reinforce the structural strength of the whole non-metallic cap body together with the rib structure, so as to make the golf head cap thinner and produce a metallic batting audio.

Please refer to FIG. 1 , which is a schematic structural diagram of a golf head according to an embodiment of the present disclosure. The golf head 100 of this embodiment mainly includes a head body 210 and a golf head cap 300 . The ball head body 210 is a hollow shell, and the top of the ball head body 210 has an opening 211 to communicate with its inner space. One side of the ball head body 210 has a ball striking surface 212 . The golf head cap 300 is disposed on the top of the head body 210 and covers the opening 211 . In some embodiments, the ball head body 210 and the ball striking face 212 of the present disclosure may be titanium metal or stainless steel.

Please refer to FIGS. 2 and 3 together, wherein FIG. 2 is a bottom view of a golf head cap according to an embodiment of the present disclosure, and FIG. 3 is a golf head cap according to an embodiment of the present disclosure. Partial sectional view of the cover. In this embodiment, the golf head cover 300 includes a non-metal cover body 310 and a plurality of rib structures 320 . The non-metal cover body 310 has an outer surface 311 and an inner surface 312 opposite to the outer surface 311 . The inner surface 312 is the surface facing the inner space of the ball head body 210 when the golf head cap 300 is covered on the ball head body 210 as shown in FIG. 1 . The rib structure 320 is disposed on the inner surface 312 of the non-metallic top cover body 310 .

In this embodiment, each of the rib structures 320 has heights, and the heights vary with the distances between the rib structures 320 and the ball striking surface 212 . As shown in FIG. 2 , the edge 313 of the non-metallic top cover body 310 is the edge closest to the ball striking face 212 . Taking FIG. 3 as an example, the rib structure 320 mainly includes a rib structure 321 , a rib structure 322 and a rib structure 323 , wherein the rib structure 321 is closer to the ball striking surface 212 (that is, the edge of the non-metal cover body 310 ) 313 ), the rib structure 323 is farther away from the ball striking surface 212 , and the rib structure 322 is located between the rib structure 321 and the rib structure 323 . Wherein, the height H1 of the rib structure 321 closer to the ball striking face 212 is smaller than the height H3 of the rib structure 323 farther away from the ball striking face 212 . In a specific example, the height H1 , the height H2 and the height H3 range from 0.2 mm to 0.5 mm. In one embodiment, the height H2 of the rib structure 322 located between the rib structure 321 and the rib structure 323 may be between the height H1 and the height H3. In other embodiments, the height H2 of the rib structure 322 can also be designed to be equal to the height H1 or equal to the height H3. In this way, through the way that the height of the rib structure 320 changes gradually with the change of the distance from the ball striking surface 212, the strength of the whole golf head cover 300 can be changed, so that the ball head cover 300 can still be reduced in thickness. Can withstand different batting forces. In order to test the strength of the golf head cover 300 of the present embodiment, after the golf head cover 300 is installed on the ball head body 210, the ball hitting surface 212 of the ball head body 210 is subjected to a ball speed test of 55 m/s. After 3000 rounds of testing, the golf head cap 300 can still pass flaw detection. This means that the golf head cap 300 has the advantages of thin thickness and high strength.

For illustration, FIG. 3 uses the rib structure 321 , the rib structure 322 and the rib structure 323 to distinguish the rib structures with different distances from the ball striking surface 212 , which is not intended to limit the present disclosure. In some embodiments, the number, shape, arrangement spacing or height of the rib structures 320 can be changed according to requirements.

Referring to FIG. 2 again, in this embodiment, the rib structures 320 are arranged in a honeycomb shape, and the rib structures 320 and the edge 313 of the non-metal cover body 310 have a certain distance. In other embodiments, the rib structure 320 can also form other mesh shapes. Referring to FIG. 3 again, the surface of each rib structure 320 close to the ball striking face 212 has different slopes. The gradient design of the rib structure 320 mainly provides that the golf head cover 300 can disperse the external force and generate The power of rebound. In one embodiment, the slope of the rib structures (eg, the rib structure 321 ) closer to the ball striking face 212 is gentler than the slope of the rib structures (eg, the rib structures 322 and 323 ) farther from the ball striking face 212 . In this way, when the golf head cap 300 is squeezed and deformed by the impact of an external force, it can quickly rebound.

Please refer to FIG. 2 to FIG. 4 at the same time, wherein FIG. 4 is an exploded view of the material structure of a golf head cover according to an embodiment of the present disclosure. In this embodiment, the non-metal top cover body 310 is a layered structure that is made up of an appearance layer 310a and a plurality of unidirectional fiber layers (eg, a first-direction fiber layer 310b and a second-direction fiber layer 310c ), or Choose from polypropylene (PP), polyvinyl chloride (PVC), polycarbonate (PC), polyamide resin (PA), polyether ether ketone (PEEK), thermoplastic polyimide (TPI), polyphenylene sulfide The non-metal cover body 310 is made of thermoplastic fiber reinforced composite materials such as ether (PPS). In a specific forming method, the appearance layer 310a can be a carbon fiber prepreg braided layer, and the fiber direction of the first direction fiber layer 310b is a carbon fiber prepreg layer whose extension direction is perpendicular to the normal direction of the ball striking surface 212 at 90 degrees. , the fiber direction of the second direction fiber layer 310c is the carbon fiber prepreg layer in the 0-degree direction with the extension direction parallel to the normal direction of the ball striking face 212 . The first-direction fiber layers 310b and the second-direction fiber layers 310c are alternately stacked, and one of the first-direction fiber layers 310b is adjacent to the appearance layer 310a. To be clear, the normal line direction of the ball striking face 212 refers to the extending direction perpendicular to the normal line of the ball striking face 212 . In other examples, the normal direction may also refer to the extending direction of an imaginary line perpendicular to the ball striking face 212 and passing through the center of gravity of the overall golf head 100 .

After the appearance layer 310a, the first-direction fiber layer 310b and the second-direction fiber layer 310c are stacked to form a material structure, they can be pressed together into a mold and heated to form an integrated structure. The mold has grooves corresponding to the rib structure 320 , so when the material structure is hot-pressed, the rib structure 320 can be simultaneously formed on the inner surface 312 of the non-metal top cover body 310 . In this way, the golf head top cover 300 can be formed into a structure with thin thickness, light weight and good structural strength. In one embodiment, the rib structure 320 is formed by two unidirectional fiber layers closest to the inner surface 312 of the non-metallic cap body 310 . In some examples, during hot pressing of the material structure, the mold may be preheated to 35 degrees and then heated to 140 degrees for 30 minutes.

In the present disclosure, the golf head cover can also have different structural designs. Please refer to FIG. 5 , which is a partial cross-sectional view of a golf head cover according to another embodiment of the present disclosure. The golf head cap 400 of the embodiment shown in FIG. 5 also includes a non-metallic cap body 410 and a plurality of rib structures 420 . The structure of the non-metallic top cover body 410 shown in FIG. 5 is substantially the same as the structure of the non-metallic top cover body 310 shown in FIGS. 2 and 3 , except that the non-metallic top cover body 410 shown in FIG. 5 further includes Sheet metal structure 430 . In this embodiment, the metal sheet structure 430 is mainly used to reinforce the structural strength of the non-metallic top cover body 410 so as to make the non-metallic top cover body 410 thinner. In some examples, the metal sheet structure 430 may be a sheet body or a mesh body with a mesh structure formed by etching. As shown in FIG. 5 , the non-metal top cover body 410 also has an outer surface 411 and an inner surface 412 opposite to the outer surface 411 . The rib structure 420 is disposed on the inner surface 412 of the non-metallic top cover body 410 , and the design principle of the rib structure 420 is the same as the design principle of the rib structure 320 in the previous embodiment, so it is not repeated here.

Please also refer to FIG. 6 , which is an exploded view of the material structure of a golf head cover according to another embodiment of the present disclosure. In this embodiment, the non-metal top cover body 410 is made of an appearance layer 410a, a plurality of unidirectional fiber layers (eg, a first-direction fiber layer 410b and a second-direction fiber layer 410c) and at least one metal sheet structure 430 stacked together into the shell structure. In a specific embodiment, the appearance layer 410a can be a carbon fiber prepreg woven layer, and the first direction fiber layer 410b is a carbon fiber prepreg in a 90-degree direction with an extending direction perpendicular to the normal direction of the hitting face 212 shown in FIG. 1 . The second-direction fiber layer 410c is a 0°-direction carbon fiber prepreg whose extension direction is parallel to the normal direction of the ball striking face 212, and one of the first-direction fiber layers 410b is adjacent to the appearance layer 410a . The first-direction fiber layers 410b and the second-direction fiber layers 410c are alternately stacked and disposed, and the position and number of the metal sheet structures 430 can be set according to requirements. In the example of FIG. 6 , the number of metal sheet structures 430 is 2, and they are respectively disposed below the first-direction fiber layer 410b of the first layer and above the first-direction fiber layer 410b of the last layer.

After the appearance layer 410a, the first-direction fiber layer 410b, the second-direction fiber layer 410c and the metal sheet structure 430 are stacked to form a material structure, they can be pressed into a mold and heated together to form an integrated structure. The mold has grooves corresponding to the rib structure 420 , so when the material structure is hot-pressed, the rib structure 420 can be simultaneously formed on the inner surface 412 of the non-metal top cover body 410 . In this way, the metal sheet structure 430 can be used as an internal reinforcement structure of the non-metallic top cover body 410 , so that the overall thickness of the non-metallic top cover body 410 can be made thinner, for example, the thickness can be as thin as 0.35mm. In one embodiment, as shown in FIG. 5 and FIG. 6 , the metal sheet structure 430 is located in a part of the non-metal cover body 410 close to the ball striking surface, and the inner surface 412 corresponding to this part is not provided with the rib structure 420 . That is to say, the part of the non-metal cover body 410 close to the ball striking surface can be reinforced by the metal sheet structure 430 , and the rest part can be reinforced by the rib structure 420 . In some examples, the mesh shape of the metal sheet structure 430 can be the same as the shape of the rib structure 420, so as to achieve the purpose of structural connection and also to reduce the shock wave generated when the ball is hit from the hitting surface. In order to test the strength of the golf head cover 400 of the present embodiment, the golf head cover 400 can be installed on a general head body, and then the ball head body's hitting surface is subjected to a shelling test at a ball speed of 55 m/s. After 3000 After the test, the golf head cap 400 can still pass the flaw detection. This means that the golf head cap 400 has the advantages of thin thickness and high strength.

In other embodiments, the metal sheet structure 430 can also be disposed between the appearance layer 410a and the first direction fiber layer 410b adjacent to the appearance layer 410a. When a braided fiber or a shell with a hollow structure is used as the appearance layer 410a, the metal sheet structure 430 can expose the appearance layer 410a, so that the appearance layer 410a can produce a composite visual effect of metal and woven texture. In addition, by changing the arrangement position and quantity of the metal sheet structures 430 , not only the appearance of the golf head top cover 400 can be changed, but also the performance of the hitting audio can be changed.

It can be seen from the above-mentioned embodiments of the present disclosure that the height and shape of the rib structure of the golf head cover of the present disclosure vary with the distance from the ball striking surface, thereby simultaneously reducing the thickness of the golf head cover and increasing the thickness of the golf head cover. Its strength, in turn, enables the golf head cover to withstand different hitting forces and provide resilience. On the other hand, a metal sheet structure can also be added to the inside of the golf head cap to reinforce the structural strength of the whole non-metallic cap body together with the rib structure, so as to make the golf head cap thinner and improve the hitting sound.

100: Golf Head 210: Ball head body 211: Opening 212: hitting face 300: Golf head cover 310: Non-metallic top cover body 310a: Appearance Layer 310b: first direction fiber layer 310c: Second direction fiber layer 311: outer surface 312: inner surface 313: Edge 320: Rib structure 321: Rib structure 322: Rib structure 323: Rib structure 400: Golf head cover 410: Non-metallic top cover body 410a: Appearance Layer 410b: first direction fiber layer 410c: Second direction fiber layer 411: outer surface 412: inner surface 420: Rib structure 430: Sheet Metal Structure H1: height H2: height H3: height

For a more complete understanding of embodiments and their advantages, reference is now made to the following description taken in conjunction with the accompanying drawings, wherein: FIG. 1 is a schematic structural diagram of a golf head according to an embodiment of the present disclosure; 2 is a bottom view illustrating a golf head cover in accordance with one embodiment of the present disclosure; 3 is a partial cross-sectional view illustrating a golf head cover according to an embodiment of the present disclosure; 4 is an exploded view of the material structure of a golf head cover according to an embodiment of the present disclosure; 5 is a partial cross-sectional view illustrating a golf head cover according to another embodiment of the present disclosure; and 6 is an exploded view of the material structure of a golf head cover according to another embodiment of the present disclosure;

Domestic storage information (please note in the order of storage institution, date and number) none Foreign deposit information (please note in the order of deposit country, institution, date and number) none

310: Non-metallic top cover body

311: outer surface

312: inner surface

320: Rib structure

321: Rib structure

322: Rib structure

323: Rib structure

H1: height

H2: height

H3: height

Claims (10)

A golf head cap configured to be mounted on a head body of a golf head, wherein the head body has a ball striking face, the golf head cap comprising: a non-metal top cover body with an opposite outer surface and an inner surface; A plurality of protruding rib structures are disposed on the inner surface, wherein each of the protruding rib structures has a height, and the heights vary with the distance between the protruding rib structures and the ball striking surface. The golf head cover of claim 1, wherein the heights of the rib structures closer to the ball striking face are lower than the heights of the rib structures farther from the ball striking face. The golf head cover of claim 1, wherein each of the rib structures has a slope near a surface of the ball striking face, wherein the slopes of the rib structures near the ball striking face are farther away The slopes of the rib structures of the ball striking face are moderated. The golf head cap as claimed in claim 1, wherein the non-metal cap body is a shell structure which is made by laminating an appearance layer and a plurality of unidirectional fiber layers together. The golf head cover of claim 4, wherein the unidirectional fiber layers comprise a plurality of first-direction fiber layers and a plurality of second-direction fiber layers, wherein the fiber extension directions of the first-direction fiber layers are perpendicular to A normal direction of the ball striking face, the fiber extending direction of the second direction fiber layers is parallel to the normal direction of the ball striking face, wherein one of the first direction fiber layers is opposite to the appearance layer adjacent. The golf head cap as claimed in claim 1, wherein the non-metallic cap body is a shell structure made of an appearance layer, at least one metal sheet structure, and a plurality of unidirectional fiber layers stacked together, wherein the metal sheet The structure is arranged between the adjacent unidirectional fiber layers. The golf head cap as claimed in claim 1, wherein the non-metallic cap body is a shell structure made of an appearance layer, at least one metal sheet structure, and a plurality of unidirectional fiber layers stacked together, wherein the metal sheet The structure is arranged between the appearance layer and the unidirectional fiber layer adjacent to the appearance layer, and a part of the metal sheet structure exposes the appearance layer. The golf head cap as claimed in claim 6 or claim 7, wherein the metal sheet structure is located in a portion of the non-metallic cap body adjacent to the ball striking face, and the inner surface of the portion of the non-metallic cap body is These rib structures are not provided. The golf head cover according to any one of claim 4 to claim 7, wherein the rib structures are formed by two layers of the unidirectional fiber layers closest to the inner surface of the non-metallic head cover body . A golf head comprising: a ball head body; and The golf head cap as described in any one of claim 1 to claim 10 is provided on the head body.

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