KR100945031B1 - Arrangement structure of dimple for golf ball - Google Patents

Abstract

The present invention relates to a dimple arrangement of a golf ball, wherein the dimple-formed golf ball is divided into twelve rectangular zones by a virtual dividing line, and a dimple group is disposed in each zone. Therefore, the present invention is configured by the dimple arrangement of the golf ball to be symmetrical, the right and left symmetrical symmetry of the dimple is regular, the right and left balance has the effect that the air flow of the left and right and top and bottom of the golf ball flying is constant.

Golf Ball, Dimple, Array, Dodecahedron

Description

Arrangement structure of dimple for golf ball}

The present invention relates to a dimple arrangement of a golf ball, and more particularly, to a dimple arrangement of a golf ball showing an arrangement pattern and an arrangement form for dimples arranged on the outer spherical side of the golf ball.

The golf ball is divided into a core (an inner core) and a cover that exert elasticity. On the outside of the cover, that is, on the surface of the golf ball, there are dimples that improve the distance of the golf ball. The dimple forms a dish type and a fry pan type. Divided into the cross-sectional view, and the shape of the dimple is honeycomb shape and round shape.

The dimples of golf balls existing on the surface of the golf balls are usually sold in various arrangements in the most popular form from 260 to 480.

However, the method of arranging dimples of the golf ball is researched to suit each company's characteristics for each manufacturer, and various methods have been tried, and the effect is expected to be continuously researched and continued in the future.

Dimples can be made up of the ratio of the dimple to the surface area of the golf ball, that is, the dimple rate is usually 75-95%, but the better the dimple arrangement, the more effective the dimple rate can be.

85% of the dimple area ratio to the surface area of the golf ball, which is the optimal condition for hitting and lifting, can be said to be the best. Considering the anticipation and regulation of future golf games, the study of the dimple pattern of the golf ball, which is the most ideal, is expected to develop and improve in various ways according to the change of the golf industry.

For example, in order to send the golf ball to the correct target predicted point due to the elasticity of the core and the head repulsion force for the long distance of the golf club, the number of dimples in more than 480 golf balls in the past has been recently changed to 300 dimple patterns. It's changing rapidly.

1 is a dimple arrangement of a golf ball according to the related art. The dimple arrangement is divided into five zones based on the north pole (N pole) and divided into five zones based on the south pole (S pole). to be. Figure 2 is a perspective view of a golf ball having such a conventional dimple arrangement.

3 is a dimple arrangement of another conventional golf ball, four hexagonal zones are formed around the north pole (N pole), four are formed around the south pole (S pole), a total of eight hexagonal zones are formed, It is a dimple arrangement of a conventional golf ball in which a rectangular section is formed between eight hexagonal sections, respectively, and a total of six rectangular sections are formed. 4 is a perspective view of a conventional golf ball having a dimple arrangement having eight hexagonal sections and six rectangular sections.

The dimple arrangement of the conventional golf ball has a vertical lateral line and a vertical line of the golf ball, even if the golf ball has a symmetrical structure, and thus the ratio of dimples to the surface area decreases, thereby reducing drag and generating lift. It is supposed to bring.

In addition, in the conventional dimple arrangement of the golf ball, eight areas of the hexagon are formed so that the dimple group in the hexagon is smaller in the outer dimple group than the center dimple group.

When looking at the intersections between the hexagonal zones, the intersections of the dimples should be present, like the rectangular ones, but the horizontal and vertical abuts in a straight line, which, like the squares, has many intersections for drag reduction and lift. Array structure to have the problem of

The present invention has been made in order to solve the conventional problems as described above, by configuring the dimple arrangement of the golf ball to be symmetrical, the air flow of the left and right and top and bottom of the golf ball to be hit by flying becomes constant, the dimple symmetrically The object is to provide a dimple arrangement of the golf ball that can be arranged to reduce drag and increase lift.

In the present invention for achieving the above object, in the dimple arrangement of the golf ball, the surface of the golf ball dimple formed is divided into 12 rectangular zones by a virtual dividing line, the dimple group in each zone It is arranged.

In the imaginary dividing line of the present invention, the equator line is divided into four quarters by the upper half and the lower half dividing lines vertically intersecting with respect to the poles of the golf ball, and the midpoint of the equator line divided into four quarters and the midpoint of the upper half and the lower half dividing lines. It is formed as a partition line connecting the.

The dimple group disposed in the rectangular zone of the present invention is composed of first to twelfth rectangular zone dimple groups, and the first to fourth rectangular zone dimple groups are arranged around the north pole point, and the fifth to eighth rectangles around the south pole point. Zone dimple groups are arranged, and ninth through twelfth rectangular zone dimple groups are arranged around the equator line.

In the rectangular zone dimple group of the present invention, six dimples are arranged in a row on the connecting line connecting the middle points of the upper half and the lower half dividing lines, and five dimples are arranged in a row on the partition line.

In the rectangular zone dimple group of the present invention, large dimples larger than the main dimples are disposed at both poles and the equator point, and 1 to 2 small dimple groups and 2 to 4 medium dimple groups are arranged around the poles.

In the rectangular zone dimple group of the present invention, seven dimples are arranged in a row on the connecting line connecting the middle points of the upper half and the lower half dividing lines, and six dimples are arranged in a row on the partition line.

In the rectangular zone dimple group of the present invention, up to seven dimples are arranged in the direction of the connecting line connecting the middle points of the upper half and the lower half dividing lines.

As described above, the present invention is configured by the dimple arrangement of the golf ball to be symmetrical, the left and right up and down symmetry of the dimple is regular, the left and right balance of the right and left air ball of the golf ball to be hit with a constant balance of air flow It is effective.

The dimples of golf balls are divided into equal parts of a spherical dodecahedron in order to arrange the surface dimples of a golf ball into a group of uniform shapes, and the 12 equal parts are made of dimples having the same shape and size. There is an effect that the golf ball can be an accurate symmetrical structure in any direction up and down and left and right.

In addition, the size of the dimples arranged in equal parts into a group of dimples of the tetrahedral square area is equal in size to provide an effect of reducing drag and increasing lift.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

5 is a development view showing a dimple arrangement of a golf ball according to an embodiment of the present invention, Figure 6 is a perspective view of a golf ball having a dimple arrangement of Figure 5, Figure 7 has a dimple arrangement of Figure 3 8 is an explanatory view showing a rectangular region of a dimple arrangement of a golf ball according to an embodiment of the present invention, Figure 9 is a dimple arrangement of a golf ball according to an embodiment of the present invention Figure 10 is a block diagram showing a rectangular section, Figure 10 is a layout showing a rectangular zone dimple group of the dimple arrangement of the golf ball according to an embodiment of the present invention, Figure 11 is a golf ball according to an embodiment of the present invention FIG. 12 is another layout view showing a rectangular zone dimple group of dimple array structures, and FIG. 12 is another layout view showing a rectangular zone dimple group of dimple arrangement structures of a golf ball according to an embodiment of the present invention, and FIG. Fig. 14 is a block diagram showing another example of the square region dimple group of the dimple arrangement of a golf ball according to an embodiment, and Fig. 14 shows another example of the square region dimple group of the dimple arrangement of a golf ball according to an embodiment of the present invention. It is a layout view.

As shown in FIGS. 5 to 7, the dimple arrangement of the golf ball of the present embodiment is divided into 12 rectangular zones by a virtual dividing line, and the dimple group P1 to each zone is divided by a virtual dividing line. P12) is arrange | positioned.

As shown in Fig. 8, the imaginary dividing line is divided into four parts of the equator line C, which is divided into four quarters by the upper half and the lower half dividing lines that vertically intersect with respect to the pole of the golf ball. It is formed by the division line S connecting the midpoint and the midpoints MP1 and MP2 of the upper half and lower half dividing lines.

This will be described in detail as follows. In other words, the setting of each rectangular area of the present embodiment is to obtain the equator line (C) based on the north pole (N pole) and the south pole (S pole) of the golf ball, and divided into four quadrants based on each pole (N pole, S pole) When the intersection line is drawn, the first line L1 and the second line L2 meet the equator line C.

The third line L3 lowered vertically at the pole (y-axis direction) has an equator point CP that meets the equator line, and is horizontally (x-axis direction) at a half point of the third line L3. He forms two midpoints (MP1, MP2) that meet the horizon.

If you make a diagonal line from these two points (MP1, MP2) to the equator point (CP), a diamond-shaped dimple array area connected to the north pole (N pole), the equator point (CP) and two intermediate points (MP1, MP2) Dogs are formed. The rectangular area dimple groups P1 to P8 of this dimple array structure obtain the same basic dimple array area shown in FIG.

As shown in FIG. 8, the length of the x-axis and y-axis in the basic dimple arrangement region is the length of the line segment of the y-axis divided by 1/2 equal to the circumference between the north pole (N pole) and the south pole (S pole) of the golf ball. That is, "d1 = d2" and "d3 = d4".

Since the diameter of the golf ball is 42.67 mm, the circumference of the golf ball is 142.9 mm, that is, 14.29 cm. For this reason, the circumference between the north pole point (N pole) and the south pole point (S pole) is 7.146 cm, and the bisected 3.573 cm is the length of the y-axis line segment.

As shown in FIG. 9, the x-axis has a length of 3.573 cm in length of the third line L3 connecting the first line L1, the second line L2, the north pole point (N pole), and the equator point CP. It is. Accordingly, it can be seen that the x-axis length is shorter than the y-axis and is longer than the length from the equator point CP to the midpoint MP1 on one side or the midpoint MP2 on the other side.

After obtaining two midpoints (MP1, MP2) at the North Pole (N pole), the x-axis segment connecting the two midpoints is from the North Pole (N pole) to the midpoint (MP1) when viewed from a ball of golf ball. In the arrangement of dimples where the segment length from the north pole (N pole) to the X point will form a concave, rather than the line length from the north pole (N pole) to the midpoint (MP2), the midpoint (MP1) and the middle A dimple will follow the point MP2 vertically.

Therefore, the line length from the north pole (N pole) to the X point is shorter than the line length from the north pole (N pole) to the middle point (MP1) or the line length from the north pole (N pole) to the middle point (MP2). Able to know.

The spherical shape of the diamond-shaped square rhombus shape thus formed is able to completely wrap the outside of the golf ball as shown in Figs.

These twelve equal size zones of golf balls represent a more complete dimple arrangement section than any other dimple arrangement zone of golf balls. Now, how to arrange the dimples in these twelve dimple arrangement zones to complete the arrangement of the effective dimples will be able to maximize the effect of the present invention.

FIG. 10 is an arrangement diagram illustrating a dimple array structure in which six dimples are arranged on a line segment connecting the midpoints MP1 and MP2, and six dimples are arranged on the line segment connecting the midpoints MP1 and MP2. Five dimples are arranged on the line segment from (N pole) to the midpoint MP1 and the line segment from the north pole point (N pole) to the midpoint MP2.

Therefore, 24 to 25 dimples are arranged in the dimple area, and approximately 288 to 300 dimples are arranged in the entire 12 rectangular area dimple group. In particular, the small dimple group appears at the lower part of the North Pole (N pole) and the upper part of the equator point (CP), but the medium dimple group consists of dimples with 15% diameter tuning of the dimples in the zone. It can be seen that the arrangement can effectively complete the dimple array.

5 to 7 is a configuration diagram showing a development view, a perspective view and a top view showing a golf ball having a dimple array structure in which the twelve rectangular zone dimple groups are formed.

Particularly, as shown in FIG. 5, the dimple group disposed in the rectangular zone of the present embodiment includes first to twelfth rectangular zone dimple groups P1 to P12, and includes first to fourth circumferences around the north pole point (N pole). Rectangular zone dimple groups P1 to P4 are arranged, and fifth to eighth rectangular zone dimple groups P5 to P8 are arranged around the south pole point (S pole), and ninth to twelfth around the equator line C. Square area dimple groups P9 to P12 are arranged.

10 to 12, in the rectangular area dimple group of the present embodiment, six dimples are arranged on a connecting line connecting between midpoints MP1 and MP2 of the upper half and the lower half dividing lines, and on the partition line P. Five dimples are arranged in a line.

In addition, the dimples arranged on the partition line P are overlapped to share with the dimples of the adjacent rectangular zone dimple group, and it is of course possible to arrange the center of the dimple so as to pass through the partition line P.

As shown in Fig. 10, in the rectangular zone dimple group of the present embodiment, large dimples D11 larger than the main dimples D10 are disposed at both poles and the equator point CP, and one around the large dimples D11. Small dimples D13 are arranged, and four medium dimples D12 are arranged around the small dimples D13. The main dimple D10 is disposed at the remaining portion.

In addition, as another arrangement of the dimples of the rectangular zone dimple group of the present embodiment, as shown in FIG. 11, two small dimples D14 having different sizes instead of the small dimples D13 of the rectangular zone dimple group of FIG. It is also possible to arrange D15).

Also, as another dimple of the rectangular zone dimple group of the present embodiment, as shown in FIG. 12, three small dimples D16 having different sizes instead of the small dimples D13 of the rectangular zone dimple group of FIG. 10. It is also possible to arrange D17).

Therefore, in the rectangular zone dimple group of the present embodiment, large dimples larger than the main dimple D10 are disposed at both pole points (N pole, S pole) and the equator point CP, and one to two small dimple groups are disposed around the same. And 2 to 4 medium dimple groups are arranged, and a total of 276 to 312 dimples are arranged on the outer surface of the golf ball.

Further, as shown in Figs. 13 and 14, the arrangement showing another example of the rectangular zone dimple group of the dimple array structure of the golf ball of the present embodiment, the six lines in the connecting line direction connecting between the midpoint of the upper half and the lower half dividing line Dimples are arranged.

And, these dimples have a main dimple (D10 '), a large dimple (D11'), a medium dimple (D12 '), and a small dimple (D13') similarly to the dimple array structure of FIG. It is arrange | positioned in the division line P.

In the present embodiment, six dimples are arranged in the direction of the connecting line connecting the middle points of the upper half and the lower half, but a maximum of seven dimples may be disposed.

Further embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

15 is a block diagram showing an example of a dimple array of golf ball dimple arrangement according to another embodiment of the present invention, Figure 16 is a rectangular area of the dimple arrangement structure of a golf ball according to another embodiment of the present invention 17 is a layout view showing an example of a dimple group, and FIG. 17 is a configuration diagram showing another example of a square region dimple group of a dimple arrangement structure of a golf ball according to another embodiment of the present invention, and FIG. 18 is a different embodiment of the present invention. It is a layout which shows the other example of the rectangular area dimple group of the dimple arrangement structure of the golf ball by the same.

As shown in Figs. 15 to 18, in the rectangular zone dimple group of the present embodiment, seven dimples are arranged in a line on a connecting line connecting between midpoints MP1 and MP2 of the upper half and the lower half dividing lines, and the partition line P ), 6 dimples are arranged in a line.

When arranging seven dimples on the line of the x-axis connecting between the midpoints MP1 and MP2 of the upper half and the lower half dividing line, the line segments from the north pole (N pole) to the middle point (MP1) and the north pole (N pole) It can be seen that six dimples are located on the line segment to the intermediate point MP2, respectively.

This means that when the line between the two midpoints (MP1, MP2) is divided into seven equal parts with a dimple of the largest size, the size is about -15%, and the dimple diameter is 34 to 36 dimples in each dimple array area. It can be seen that approximately 420 dimples are arranged throughout the golf ball.

As shown in FIGS. 15 and 16, each of the small dimples D23 and the medium-sized dimples appearing above and below the large dimple D21 larger than the main dimple D20 at the north pole point (N pole) and the equator point CP. You can see two groups (D22).

This is a dimple array structure that is identically arranged in all dimple groups of 12 rectangular zones, and the arrangement rules of dimples collapse near the pole (N pole, S pole) and the equator point (CP) in each rectangular zone dimple group. When 7 dimples are arranged on a line segment connecting the midpoints MP1 and MP2 of FIG. 9 to a line segment, when the dimples are arranged as shown in FIG. 16, the dimple D21 of the north pole (N pole) is shown. It is a phenomenon appearing in the lower part and the upper part of the dimple D21 of the equator point CP to arrange the small dimples D23 and the medium dimple groups D22 in all twelve dimple zones.

In particular, as shown in Fig. 16, in the rectangular zone dimple group of the present embodiment, large dimples D21 larger than the main dimples D20 are disposed at both poles and the equator point CP, and around the large dimples D21. One small dimple D23 is arranged, and four medium dimples D22 are arranged around the small dimple D23. The main dimple D20 is disposed in the remaining part.

Further, as the arrangement of the other dimples of the rectangular zone dimple group of the present embodiment, as shown in Figs. 17 and 18, two small dimples having different sizes instead of the small dimples D23 of the rectangular zone dimple group of Fig. 16 above. D25 and D26 may be disposed, and instead of the two medium dimples D22 of the four medium dimples D22 disposed on the small dimples D23, the main dimples D20 may be disposed.

Therefore, in the rectangular zone dimple group of the present embodiment, large dimples larger than the main dimple D20 are disposed at both pole points (N pole, S pole) and the equator point CP, and one to two small dimple groups are disposed around the same. And 2 to 4 medium dimple groups are arranged, and a total of 369 to 444 dimples are arranged on the outer surface of the golf ball.

The present invention described above can be embodied in many other forms without departing from the spirit or main features thereof. Therefore, the above embodiments are merely examples in all respects and should not be interpreted limitedly.

1 is an exploded view showing an example of a dimple arrangement of a conventional golf ball.

Figure 2 is a perspective view of a golf ball having a dimple arrangement of Figure 1;

3 is a development view showing another example of the dimple arrangement of a conventional golf ball.

4 is a perspective view of a golf ball having a dimple arrangement of FIG.

5 is a development view showing a dimple arrangement structure of a golf ball according to an embodiment of the present invention.

6 is a perspective view of a golf ball having a dimple arrangement of FIG.

7 is a top view of a golf ball having a dimple arrangement of FIG.

8 is an explanatory view showing a rectangular region of the dimple array structure of a golf ball according to an embodiment of the present invention.

9 is a block diagram showing a rectangular region of the dimple arrangement of the golf ball according to an embodiment of the present invention.

10 is a layout view showing a rectangular zone dimple group of dimple arrangement of a golf ball according to an embodiment of the present invention.

Figure 11 is another layout showing a rectangular zone dimple group of dimple arrangement of the golf ball according to an embodiment of the present invention.

12 is another layout view showing a rectangular zone dimple group of dimple arrangement of a golf ball according to an embodiment of the present invention.

Figure 13 is a block diagram showing another example of the rectangular zone dimple group of the dimple arrangement of the golf ball according to an embodiment of the present invention.

14 is a layout view showing another example of the rectangular zone dimple group of the dimple arrangement of the golf ball according to an embodiment of the present invention.

15 is a block diagram showing an example of a rectangular zone dimple group of dimple arrangement of a golf ball according to another embodiment of the present invention.

FIG. 16 is a layout view illustrating an example of a rectangular area dimple group in a dimple array structure of a golf ball according to another embodiment of the present invention; FIG.

Figure 17 is a block diagram showing another example of the rectangular zone dimple group of the dimple arrangement of the golf ball according to another embodiment of the present invention.

18 is a layout view showing another example of the rectangular zone dimple group of the dimple arrangement of the golf ball according to another embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

D10, D20: Main Dimple D11, D21: Large Dimple

D12, D22: medium dimples D13, D23; Small dimples

C: Equator Line P: Block Line

Claims (8)

In the dimple arrangement of the golf ball, The dimple arrangement structure of the golf ball, characterized in that the dimple is formed by dividing the surface of the golf ball into twelve rectangular zones by a virtual dividing line, and a dimple group is disposed in each zone. The method of claim 1, The imaginary dividing line is divided into four quarters by the upper half and the lower half dividing lines vertically intersecting the poles of the golf ball, and connects the midpoint of the four-quadrate equator line with the midpoint of the upper half and the lower half dividing lines. Dimple arrangement structure of the golf ball, characterized in that formed in one partition line. The method according to claim 1 or 2, The dimple group disposed in the quadrangular region comprises a first to twelfth rectangular zone dimple group, and the first to fourth rectangular zone dimple groups are arranged around the north pole point, and the fifth to eighth rectangular zone dimples around the south pole point. A dimple arrangement structure of a golf ball, wherein the group is disposed, and the ninth to twelfth rectangular area dimple groups are disposed around the equator line. The method of claim 3, wherein In the rectangular zone dimple group, six dimples are arranged in a row on a connecting line connecting the middle points of the upper half and the lower half, and dimples of five golf balls are arranged in a row on the partition line. Array structure. The method of claim 4, wherein In the rectangular zone dimple group, a large dimple larger than the main dimple is disposed at both poles and the equator point, and around 1 to 2 small dimple groups and 2 to 4 medium dimple groups are disposed. Dimple arrangement of the ball. The method of claim 3, wherein In the rectangular zone dimple group, seven dimples are arranged in a row on a connecting line connecting the middle points of the upper half and the lower half dividing lines, and six dimples are arranged in a row on the dividing line. Array structure. The method of claim 6, In the rectangular zone dimple group, a large dimple larger than the main dimple is disposed at both poles and the equator point, and 1 to 3 small dimple groups and 2 to 4 medium dimple groups are arranged around the golf. Dimple arrangement of the ball. The method of claim 3, wherein The rectangular area dimple group has a dimple array structure of a golf ball, characterized in that up to seven dimples are arranged in the direction of the connecting line connecting the middle points of the upper half and the lower half dividing line.

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