Golf ball structure

Abstract

The utility model discloses a golf ball structure which comprises a ball body, a plurality of pits are distributed on the surface of the ball body, D is set as the diameter of the ball body, d1 is set as the diameter of a contour ball of each pit, h is set as the depth of each pit, the distance between the center of the ball body and the center of the contour ball of each pit is set as L, and L is equal to D / 2 + d1 / 2-h; the sphere is divided into an upper hemisphere and a lower hemisphere, the upper hemisphere is sequentially divided into planes N1, N2, N3, N4, N5, N6, N7, N8 and N9 in the direction from the sphere center to the polar point of the sphere, pits X1, X2, X3, X4, X5, X6, X7, X8 and X9 which are different in number are uniformly distributed on each plane, the lower hemisphere is formed by the mirror image of the upper hemisphere and then rotates around the axis by an angle theta, and theta is set to be equal to 360 / (2 * X1). According to the golf ball structure, airflow is manually generated and controlled through the layout design of the wind tunnel, differential pressure resistance can be effectively reduced, the aerodynamic performance of a golf ball is optimized, and the use experience feeling of a user is improved.

Description

Technical Field

[0001] The utility model relates to a golf ball structure. Background Art

[0002] As people's living standards improve, more and more people are participating in the sport of golf. Generally speaking, the flight of a golf ball is determined by a number of factors, including the golfer's motion control, such as ball speed, hitting angle, etc., as well as the golf ball itself, such as the weight, structure, size and aerodynamic performance of the ball. The flight of a golf ball in an air fluid is mainly affected by pressure differential resistance. During the flight, a low-pressure area is formed on the leeward side of the ball. The air pressure in front of the ball, that is, its windward side, is higher than that in the back, and at this time, a pressure differential resistance is formed that hinders the forward movement of the golf ball. Therefore, how to reduce the pressure differential resistance of a golf ball becomes very urgent. Summary of the invention

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a golf ball structure.

[0004] The utility model is realized by the following technical scheme: a golf ball structure, comprising a sphere, a plurality of dimples are arranged on the surface of the sphere, D is set as the diameter of the sphere, d1 is set as the diameter of the outline of the dimple, h is set as the depth of the dimple, and the distance from the center of the sphere to the center of the outline of the dimple is set as L, and L satisfies L=D / 2+d1 / 2-h; the sphere is divided into an upper hemisphere and a lower hemisphere, wherein the upper hemisphere is sequentially divided into N1, N2, N3, N4, N5, N6, N7, N8 and N9 planes from the center of the sphere to the pole, and each plane is uniformly distributed with dimples X1, X2, X3, X4, X5, X6, X7, X8 and X9 of different numbers, and the lower hemisphere is obtained by rotating the upper hemisphere by an angle θ around a rotation axis after being formed by mirroring the upper hemisphere, wherein θ satisfies θ=360 / (2*X1).

[0005] Preferably, the sphere is represented by an x-axis, a y-axis and a rotation axis which are coplanar with the equatorial plane, and the rotation axis is perpendicular to the equatorial plane and passes through the two poles of the sphere; each of the N1, N2, N3, N4, N5, N6, N7, N8 and N9 planes has a circular offset angle relative to the plane formed by the x-axis and the y-axis, and the circular offset angles are c1, c2, c3, c4, c5, c6, c7, c8 and c9 respectively.

[0006] Preferably, the circumferential offset angles are designed as follows: c1=0; c2=360 / (2*X2); c3=0; c4=360 / (2*X4); c5=0; c6=360 / (2*X6); c7=0; c8=360 / (2*X8); c9=0.

[0007] Preferably, an angle α is formed between the line formed by the center of the contour sphere of the pit at the N1 plane and the center of the sphere and the x-axis; an angle β is formed between the line formed by the center of the contour sphere of the pit corresponding to the adjacent plane and the center of the sphere, and the angle α is not equal to the angle β.

[0008] Preferably, the angle β is designed to be β=(90°-α) / 8.

[0009] Preferably, the angle α is 5° and the angle β is 10.625°.

[0010] Preferably, the number of the pits arranged on the surface of the sphere is 346-366.

[0011] Preferably, the angle θ is 5.294° to 5.625°.

[0012] Preferably, the number of pits on each plane is: X1=32-34, X2=30-32, X3=28-30, X4=26-27, X5=22-23, X6=16-18, X7=12, X8=6, and X9=1.

[0013] Preferably, the circumferential offset angles of each plane are: c1=0, c2=5.625°~6°, c3=0, c4=6.667°~6.923°, c5=0, c6=10°~11.25°, c7=0, c8=30°, c9=0.

[0014] The golf ball structure of the present invention utilizes the layout design of a wind tunnel to artificially generate and control airflow, which can effectively reduce pressure difference resistance, optimize the aerodynamic performance of the golf ball, and enhance the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a stereogram of the utility model.

[0017] Figure 2 It is a structural diagram of the upper hemisphere of the utility model.

[0018] Figure 3 It is a cross-sectional schematic diagram of the utility model.

[0019] Figure 4 It is a whole ball structure diagram of the utility model. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] A golf ball can be represented by three orthogonal axes that meet at the center of the ball, usually called the x, y, and z axes. A golf ball is usually represented by two axes coplanar with the equatorial plane (i.e., the x-axis and the y-axis) and an axis of rotation (the z-axis), which is perpendicular to the equatorial plane and passes through the poles of the ball.

[0022] Referring to the accompanying drawings of the specification, a golf ball structure includes a sphere 1, a plurality of dimples 10 of the same size are arranged on the surface of the sphere 1, the diameter of the sphere 1 is set as D, the diameter of the outline of the dimple 10 is defined as d1, the depth of the dimple 10 is defined as h, and the distance from the center of the sphere 1 to the center of the outline of the dimple 10 is L, where L = D / 2 + d1 / 2 - h. The sphere 1 can be divided into an upper hemisphere 11 and a lower hemisphere 12, and the upper hemisphere 11 and the lower hemisphere 12 are divided by an x-axis and a y-axis coplanar with the equatorial plane of the sphere, and the above-mentioned z-axis passes through the poles a of the upper hemisphere 11 and the lower hemisphere 12 respectively.

[0023] Referring to the accompanying drawings, the upper hemisphere 11 is divided into a plurality of planes in a direction from the center of the sphere to the pole a, and a plurality of pits 10 of varying numbers are evenly distributed on each plane. In the present invention, the plurality of planes are defined as N1, N2, N3, N4, N5, N6, N7, N8 and N9, respectively, wherein the number of the pits 10 distributed on each plane N1, N2, N3, N4, N5, N6, N7, N8 and N9 is X1, X2, X3, X4, X5, X6, X7, X8 and X9 respectively. 9, and define the circumferential offset angle of each plane N1, N2, N3, N4, N5, N6, N7, N8 and N9 relative to the xy-axis plane as c1, c2, c3, c4, c5, c6, c7, c8 and c9, wherein each circumferential offset angle is designed as follows: c1=0; c2=360 / (2*X2); c3=0; c4=360 / (2*X4); c5=0; c6=360 / (2*X6); c7=0; c8=360 / (2*X8); c9=0.

[0024] An angle α is formed between the line s1 connecting the center of the contour ball of the pit 10 at the above-mentioned plane N1 and the center of the sphere 1 and the x-axis, and a line s2 is formed between the center of the contour ball of the pit 10 at the above-mentioned plane N2 and the center of the sphere 1, and the angle formed between the line s2 and the line s1 is β. Similarly, referring to the accompanying drawings, the angle formed by the lines connecting the center of the contour ball of the pit corresponding to the other adjacent planes and the center of the sphere 1 is also β, and the angle β is designed to be β=(90°-α) / 8.

[0025] The structure of the lower hemisphere 12 of the present invention is set as follows: it is first formed by the mirror image of the upper hemisphere 11, and then rotated around the rotation axis (z axis) by an angle θ, wherein θ is set to θ=360 / (2*X1).

[0026] The diameter of a commonly used golf ball is generally 42.6-42.8 mm and the weight is about 45 grams. It is generally made of an inner synthetic rubber and an outer layer of hard plastic with dimples, and has good elastic properties. The golf ball structure of the present invention is provided below with the dimensions of a specific example in design Table 1, and it can also have a variety of other size combinations. The size examples discussed in Table 1 are only some selected structural designs to illustrate the present invention and some of its various aspects.

[0027] Table 1

[0028] Numeric unit α 5 ° β 10.625 ° D 42.67 mm d1 20 mm h 0.28 mm L 31.055 mm

[0029] Tables 2 to 8 below respectively show the specific arrangement of the number of dimples and their circumferential offset angles at each plane in the upper hemisphere in each embodiment, so as to illustrate the different layout designs of the golf ball structure of the present invention.

[0030] Table 2: Specific layout of the number of pits and their circumferential offset angles at each plane of the upper hemisphere

[0031]

[0032]

[0033] In this embodiment, the structure of the lower hemisphere 12 is first formed by mirroring the upper hemisphere 11, and then rotated around the rotation axis (z axis) by an angle of 5.625°, and the two form the whole sphere structure in this embodiment.

[0034] Table 3: Specific layout of the number of pits and their circumferential offset angles at each plane of the upper hemisphere

[0035] Number of pits Circumferential offset angle (°) X1 32 c1 0 X2 30 c2 6 X3 28 c3 0 X4 26 c4 6.923 X5 22 c5 0 X6 17 c6 10.588 X7 12 c7 0 X8 6 c8 30 X9 1 c9 0 Number of hemisphere dimples 174 Number of dimples in the ball 348

[0036] In this embodiment, the structure of the lower hemisphere 12 is first formed by mirroring the upper hemisphere 11, and then rotated around the rotation axis (z axis) by an angle of 5.625°, and the two form the whole sphere structure in this embodiment.

[0037] Table 4: Specific layout of the number of pits and their circumferential offset angles at each plane of the upper hemisphere

[0038]

[0039]

[0040] In this embodiment, the structure of the lower hemisphere 12 is first formed by mirroring the upper hemisphere 11, and then rotated around the rotation axis (z axis) by an angle of 5.625°, and the two form the whole sphere structure in this embodiment.

[0041] Table 5: Specific layout of the number of pits and their circumferential offset angles at each plane of the upper hemisphere

[0042] Number of pits Circumferential offset angle (°) X1 34 c1 0 X2 32 c2 5.625 X3 30 c3 0 X4 26 c4 6.923 X5 22 c5 0 X6 18 c6 10 X7 12 c7 0 X8 6 c8 30 X9 1 c9 0 Number of hemisphere dimples 181 Number of dimples in the ball 362

[0043] In this embodiment, the structure of the lower hemisphere 12 is first formed by mirroring the upper hemisphere 11, and then rotated around the rotation axis (z axis) by an angle of 5.294°, and the two form the whole sphere structure in this embodiment.

[0044] Table 6: Specific layout of the number of pits and their circumferential offset angles at each plane of the upper hemisphere

[0045]

[0046]

[0047] In this embodiment, the structure of the lower hemisphere 12 is first formed by mirroring the upper hemisphere 11, and then rotated around the rotation axis (z axis) by an angle of 5.294°, and the two form the whole sphere structure in this embodiment.

[0048] Table 7: Specific layout of the number of pits and their circumferential offset angles at each plane of the upper hemisphere

[0049] Number of pits Circumferential offset angle (°) X1 34 c1 0 X2 32 c2 5.625 X3 28 c3 0 X4 26 c4 6.923 X5 22 c5 0 X6 18 c6 10 X7 12 c7 0 X8 6 c8 30 X9 1 c9 0 Number of hemisphere dimples 179 Number of dimples in the ball 358

[0050] In this embodiment, the structure of the lower hemisphere 12 is first formed by mirroring the upper hemisphere 11, and then rotated around the rotation axis (z axis) by an angle of 5.294°, and the two form the whole sphere structure in this embodiment.

[0051] Table 8: Specific layout of the number of pits and their circumferential offset angles at each plane of the upper hemisphere

[0052]

[0053]

[0054] In this embodiment, the structure of the lower hemisphere 12 is first formed by mirroring the upper hemisphere 11, and then rotated around the rotation axis (z axis) by an angle of 5.294°, and the two form the whole sphere structure in this embodiment.

[0055] Table 9: Specific layout of the number of pits and their circumferential offset angles at each plane of the upper hemisphere

[0056] Number of pits Circumferential offset angle (°) X1 34 c1 0 X2 32 c2 5.625 X3 30 c3 0 X4 27 c4 6.667 X5 23 c5 0 X6 18 c6 10 X7 12 c7 0 X8 6 c8 30 X9 1 c9 0 Number of hemisphere dimples 183 Number of dimples in the ball 366

[0057] In this embodiment, the structure of the lower hemisphere 12 is first formed by mirroring the upper hemisphere 11, and then rotated around the rotation axis (z axis) by an angle of 5.294°, and the two form the whole sphere structure in this embodiment.

[0058] The golf ball structure of the present invention utilizes the layout design of a wind tunnel to artificially generate and control airflow, which can effectively reduce pressure difference resistance, optimize the aerodynamic performance of the golf ball, and enhance the user experience.

[0059] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A golf ball structure, characterized in that: The invention comprises a sphere, wherein a plurality of pits are arranged on the surface of the sphere, D is set as the diameter of the sphere, d1 is set as the diameter of the outline sphere of the pit, h is set as the depth of the pit, and the distance from the center of the sphere to the center of the outline sphere of the pit is set as L, wherein L satisfies L=D / 2+d1 / 2-h; the sphere is divided into an upper hemisphere and a lower hemisphere, wherein the upper hemisphere is divided into N1, N2, N3, N4, N5, N6, N7, N8 and N9 planes in sequence from the center of the sphere to the pole, and each plane is evenly distributed with pits X1, X2, X3, X4, X5, X6, X7, X8 and X9 of varying numbers, and the lower hemisphere is obtained by rotating the upper hemisphere by an angle θ around a rotation axis after being formed by a mirror image, wherein θ satisfies θ=360 / (2*X1).

2. The golf ball structure according to claim 1, characterized in that: The sphere is represented by an x-axis, a y-axis and a rotation axis which are coplanar with the equatorial plane, wherein the rotation axis is perpendicular to the equatorial plane and passes through the two poles of the sphere; each of the N1, N2, N3, N4, N5, N6, N7, N8 and N9 planes has a circular offset angle relative to the plane formed by the x-axis and the y-axis, and the circular offset angles are c1, c2, c3, c4, c5, c6, c7, c8 and c9 respectively.

3. The golf ball structure according to claim 2, characterized in that: The circumferential offset angles are designed as follows: c1=0; c2=360 / (2*X2); c3=0; c4=360 / (2*X4); c5=0; c6=360 / (2*X6); c7=0; c8=360 / (2*X8); c9=0.

4. The golf ball structure according to claim 2, characterized in that: An angle α is formed between the line formed by the center of the contour sphere of the pit on the N1 plane and the center of the sphere and the x-axis; an angle β is formed between the line formed by the center of the contour sphere of the pit corresponding to the adjacent plane and the center of the sphere, and the angle α is not equal to the angle β.

5. The golf ball structure according to claim 4, characterized in that: The angle β is designed to be β=(90°-α) / 8.

6. The golf ball structure according to claim 5, characterized in that: The angle α is 5°, and the angle β is 10.625°.

7. The golf ball structure according to claim 1, characterized in that: The number of the pits arranged on the surface of the sphere is 346 to 366.

8. The golf ball structure according to claim 1, characterized in that: The θ is 5.294° to 5.625°.

9. The golf ball structure according to claim 1, wherein: The number of pits on each plane is: X1=32~34, X2=30~32, X3=28~30, X4=26~27, X5=22~23, X6=16~18, X7=12, X8=6, X9=1.

10. The golf ball structure according to claim 2, characterized in that: The circumferential offset angles of each plane are: c1=0, c2=5.625°~6°, c3=0, c4=6.667°~6.923°, c5=0, c6=10°~11.25°, c7=0, c8=30°, c9=0.

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