JP2007190177A - Golf ball - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a golf ball which achieves a higher visual recognizability of a mark as a measure of the direction of hitting a golf ball in the hitting of the ball by a player along with a beautiful appearance by enabling the checking of the golf ball from above and sideways when placed. <P>SOLUTION: The golf ball is provided with at least two marks at an interval of 90° with the same shape on a big circle on its surface. The mark is preferably larger than a circle with a diameter of 7 mm and the length of the shortest part is less than 10 mm. The mark preferably has an identifying number described. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a golf ball provided with a mark that is used as an indication of the direction of the ball when the golfer strikes, and in particular, when the golf ball is placed, it can be confirmed from above and from the side. The present invention relates to a golf ball provided with a mark that can be used as a measure of a hitting direction.

In golf, the golfer can adjust the position of the golf ball with respect to the direction of the ball when teeing and putting. At this time, as shown in FIG. 8, the golfer (not shown) determines whether the position of the golf ball 100 is appropriate with respect to the ground P from above (direction α) or from the side (direction β). I'm checking it. In this case, if the golf ball has a mark, it is possible to match the hitting direction more accurately.
For this reason, some golf balls are provided with linear marks for the purpose of matching the hitting direction and matching the golfer's address direction during tee shots and putting (see Patent Document 1). ).

Patent Document 1 discloses a golf ball provided with a putting direction index (PDI) along the dynamic axis of the golf ball for improving putting.
In Patent Document 1, characters, words, short sentences, symbols, names, initials, numbers, images (images), photographs, or other types of marks are used as putting direction indicators provided along the dynamic axis of the golf ball. Is exemplified.
Further, in Patent Document 1, as a putting direction index, a design such as a user's name or a user's family image is also exemplified as a putting direction index.

In addition to this Patent Document 1, various golf balls provided with marks for matching the hitting direction have been proposed as shown in FIGS.
FIG. 9A is a first side view showing a conventional first golf ball, FIG. 9B is a plan view showing the conventional first golf ball, and FIG. It is a 2nd side view which shows a 1st golf ball, (d) is a 3rd side view which shows the conventional 1st golf ball.

  As shown in FIG. 9B, the conventional first golf ball 110 has a mark 112 formed on the great circle C thereof. The mark 112 is composed of a straight line portion 114 extending along the great circle C and a circular portion 116 provided at one end of the straight line portion 114. Further, the golf ball 110 is provided with a logo 118 as shown in FIG. The logo 118 includes a number 118a indicating an identification number and a mark 118b indicating a brand name. The logo 118 is formed on the side surfaces on both sides in the direction orthogonal to the direction in which the straight portion 114 of the mark 112 extends.

  In the conventional first golf ball 110, for example, the circular portion 116 of the mark 112 is directed to the front side, and the circular portion 116 is directed in the hitting direction. Then, the face surface is aligned with the straight portion 114, and then the golfer determines the position of the foot in order to perform a stroke according to the hitting direction with the mark 112 as a guide, and hits the ball with an address.

A conventional second golf ball 120 as shown in FIGS. 10A to 10C has also been proposed.
Here, FIG. 10A is a first side view showing a conventional second golf ball, FIG. 10B is a plan view showing the conventional second golf ball, and FIG. FIG. 10 is a second side view showing a conventional second golf ball.
Although the detailed illustration of the conventional second golf ball 120 is also omitted, a logo 118 shown in FIG. 9D is provided.

As shown in FIG. 10B, the conventional second golf ball 120 has a mark 122 formed on the great circle C thereof. The mark 122 includes a straight portion 124 extending along the great circle C and a V-shaped portion 126 provided at one end of the straight portion 124.
In the conventional second golf ball 120, for example, the V-shaped portion 126 of the mark 122 is directed to the front side, and the V-shaped portion 126 is directed in the hitting direction. Then, the face surface is aligned with the straight portion 124, and then the golfer determines the position of the foot in order to perform a stroke according to the hitting direction with the mark 112 as a guide, and hits the ball with an address.

Further, a conventional third golf ball 130 as shown in FIGS. 11A to 11C has also been proposed.
Here, FIG. 11A is a first side view showing a conventional third golf ball, FIG. 11B is a plan view showing the conventional third golf ball, and FIG. FIG. 7 is a second side view showing a conventional third golf ball.
A detailed illustration of the conventional third golf ball 130 is also omitted, but a logo 118 shown in FIG. 9D is provided.

As shown in FIG. 11 (b), the conventional third golf ball 130 has a mark 132 formed on the great circle C thereof. The mark 132 extends in a direction orthogonal to the first straight portion 134 provided at one end of the first straight portion 134 and the first straight portion 134 extending along the great circle C. And a second straight portion 136.
In the conventional third golf ball 130, for example, the second straight portion 136 of the mark 132 faces the front side, and the second straight portion 136 is directed in the hitting direction. Then, the face surface is aligned with the first straight portion 134, and then the golfer determines the position of the foot in order to perform a stroke according to the direction of the ball, using the mark 112 as a guide, and hits the ball with an address. .

JP 2005-517464 A

  However, in the golf ball disclosed in Patent Document 1, although the putting direction index is provided along the dynamic axis, the putting direction index has poor visibility from the side (direction β shown in FIG. 8). There is a problem. For this reason, when the golf ball is installed in the hitting direction, there is a problem that it is difficult to confirm from the side whether the golfer is correctly installed in the hitting direction desired by the golfer.

Further, in the conventional first golf ball 110, the mark 112 has a straight line portion 114, and when viewed from the side (direction β shown in FIG. 8), the circular portion 116 of the mark 112 is visible. There is a problem that visibility from the side (direction β shown in FIG. 8) is poor. For this reason, when the golf ball is installed in the hitting direction, there is a problem that it is difficult to confirm from the side (direction β shown in FIG. 8) whether the golf ball is correctly installed in the hitting direction desired by the golfer.
Further, in the conventional first golf ball 110, as shown in FIGS. 9 (a) and 9 (c), a part of the mark 112 can be seen on the other side surfaces, which is very beautiful in appearance. It is not a thing.

Also in the conventional second golf ball 120, the mark 122 has a straight portion 124, and the V-shaped portion 126 of the mark 122 is visible when viewed from the side (direction β shown in FIG. 8). Thus, there is a problem that the visibility from the side (direction β shown in FIG. 8) is poor. For this reason, when the golf ball is installed in the hitting direction, there is a problem that it is difficult to confirm from the side (direction β shown in FIG. 8) whether the golf ball is correctly installed in the hitting direction desired by the golfer.
Further, in the conventional second golf ball 120 as well, as shown in FIGS. 10A and 10C, the other side surface is such that a part of the mark 122 can be seen and is very beautiful in appearance. It is not a thing.

Also in the conventional third golf ball 130, the mark 132 has the first straight portion 124, and the second straight line of the mark 132 when viewed from the side (direction β shown in FIG. 8). There is a problem that the visibility from the side (direction β shown in FIG. 8) is poor as long as the portion 136 is visible. For this reason, when the golf ball is installed in the hitting direction, there is a problem that it is difficult to confirm from the side (direction β shown in FIG. 8) whether the golf ball is correctly installed in the hitting direction desired by the golfer.
Further, also in the conventional third golf ball 130, as shown in FIGS. 11A and 11C, the other side surface is such that a part of the mark 132 is visible, and the appearance is very beautiful. It is not a thing.

  In addition, when a golf ball without a mark is provided with a mark that can be seen from above and from the side by using a pen or the like before the start of play, the golf ball may be marked during play by hitting the golf club multiple times. There is also a problem that disappears. Further, the mark provided by the golfer himself does not necessarily have a good appearance.

  An object of the present invention is to solve the above-mentioned problems of the prior art, which is beautiful in appearance and can be confirmed from above and from the side when a golf ball is placed. An object of the present invention is to provide a golf ball having good mark visibility.

  In order to achieve the above object, the present invention provides a golf ball characterized in that at least two marks having the same shape are provided at 90 ° intervals on a great circle on the surface.

In the present invention, the mark is preferably larger than a circle having a diameter of 7 mm.
In the present invention, it is preferable that the shortest portion of the mark has a length of 10 mm or less.
Furthermore, in the present invention, the mark is preferably marked with an identification number.
Furthermore, in the present invention, it is preferable that three marks are provided on the great circle on the surface at intervals of 90 °, and more preferably four are provided at intervals of 90 °.

According to the golf ball of the present invention, by providing at least two marks of the same shape on a great circle on the surface thereof at intervals of 90 °, it is possible to improve the visibility of the mark as a guide in the hitting direction. For this reason, for example, when one mark is on the front side and is directed in the direction of the hit ball, the remaining marks are in a position that can be seen from above. The face can be matched to these marks, and then the golfer can determine the position of the foot to make a stroke according to the direction of the ball, using the mark as a guide, and hit the ball with an address. In this way, it is possible to easily take a shot in a predetermined hitting direction and hit the ball. Thereby, positioning of the hitting direction can be easily performed, the hitting direction can be improved, and the score can be improved.
Furthermore, according to the golf ball of the present invention, by providing at least two marks, the design can be improved and the appearance can be made beautiful.

  In addition, according to the golf ball of the present invention, by providing three marks on the great circle on the surface at intervals of 90 °, positioning of the hitting direction can be performed more easily, and the hitting directionality can be further improved. Furthermore, by providing four marks on the great circle on the surface at intervals of 90 °, the hitting direction can be positioned more easily, and the hitting direction can be further improved.

Hereinafter, a golf ball of the present invention will be described in detail based on preferred embodiments shown in the accompanying drawings.
FIG. 1 (a) is a plan view showing a golf ball according to a first embodiment of the present invention, (b) is a side view of FIG. 1 (a), and (c) is FIG. It is a top view which shows the state rotated 90 degrees from the state of a), (d) is a side view of FIG.1 (c). In FIGS. 1A and 1C, the ground P is not shown.
The golf ball 10 of this embodiment has, for example, a core (not shown) and a cover (not shown) formed on the surface of the core, and dimples (not shown) are formed on the surface of the cover. It is what has been.

As shown in FIG. 1A, in the golf ball 10, two marks 20 a and 20 b are formed on the great circle C at 90 ° intervals with respect to the center G of the great circle C.
These marks 20a and 20b have the same shape and size, and are circular. The marks 20a and 20b preferably have a diameter D larger than 7 mm. Further, the upper limit of the diameter D of the marks 20a and 20b is not particularly limited. The upper limit of the diameter D is preferably 25 mm or less, and more preferably 20 mm or less.
In the present invention, the distinguishability of the marks 20a and 20b is improved by making the diameter D of the marks 20a and 20b larger than 7 mm. For this reason, it is preferable that the diameter D of the marks 20a and 20b is larger than 7 mm.

  In this embodiment, when two golf balls 10 are provided on the great circle C of the golf ball 10 and the marks 20a and 20b are provided at 90 ° intervals, the golf ball 10 is used for alignment in the hitting direction. As shown in (b), it can be easily seen from above and from the side. Further, by providing two marks 20a and 20b, the design can be improved and the appearance can be made beautiful.

  Further, in the golf ball 10 of the present embodiment, for example, as shown in FIG. 1A, the mark 20b is directed in the hitting direction. Then, the face surface is aligned with an imaginary line passing through the mark 20a and the mark 20b. After that, the golfer can determine the position of the foot to perform a stroke according to the hitting direction, using the two marks 20a and 20b as a guide, and can hit the ball with an address. Thereby, hitting directionality can be improved and the score can be improved.

  Further, when the golf ball 10 is rotated by 90 ° from the state shown in FIG. 1A and the mark 20b is in the uppermost state as shown in FIG. 1C, the marks 20a and 20b are moved upward. And can be confirmed from the side. Also in this case, the virtual line passing through the two marks 20a and 20b is aligned with the hitting direction, the face surfaces are aligned using these two marks 20a and 20b as a guideline, and the position of the foot is set for the stroke. You can decide, address and hit the ball.

  Thus, in the present invention, the two marks 20a, 20b are provided on the great circle C at intervals of 90 ° with respect to the center G of the great circle C, so that the marks 20a, 20b are formed from above and from the side. The virtual line passing through the two marks 20a and 20b can be matched with the hitting direction, the face surface is aligned with the virtual line, and then the golfer can use the two marks 20a and 20b as a guide. In order to perform a stroke according to the direction of the hit ball, it is possible to determine the position of the foot, hit an address and hit the ball. Thereby, hitting directionality can be improved and the score can be improved.

Next, a second embodiment of the present invention will be described.
2A is a plan view showing a golf ball according to a second embodiment of the present invention, FIG. 2B is a side view of FIG. 2A, and FIG. It is a top view which shows the state rotated 90 degrees from the state of a), (d) is a side view of FIG.2 (c).
The same components as those of the golf ball 10 of the first embodiment shown in FIGS. 1A to 1D are denoted by the same reference numerals, and detailed description thereof is omitted. 2A and 2C, the ground P is not shown.

The golf ball 12 of this embodiment has three marks 20a, 20b, and 20c as compared with the golf ball 10 of the first embodiment (see FIGS. 1A and 1B). The other configurations are the same as those of the golf ball 10 of the first embodiment, and detailed description thereof is omitted.
Also in the golf ball 12 of the present embodiment, the three marks 20a, 20b, 20c are formed on the great circle C, and the arrangement interval of the marks 20a, 20b, 20c is at the center G of the great circle C. On the other hand, the interval is 90 °. The marks 20a, 20b, and 20c are all the same circular shape and have the same size. Each of these marks 20a, 20b, and 20c preferably has a diameter D larger than 7 mm. Moreover, the upper limit of the diameter D of each mark 20a, 20b, 20c is not specifically limited. The upper limit of the diameter D is preferably 25 mm or less, and more preferably 20 mm or less.
In the present invention, by making the diameter D of each mark 20a, 20b, 20c larger than 7 mm, the distinguishability of each mark 20a, 20b, 20c is improved. For this reason, it is preferable that the diameter D of each mark 20a, 20b, 20c is larger than 7 mm.

  Also in the golf ball 12 of this embodiment, the golf ball 12 is used for matching the hitting direction by providing three marks 20a, 20b, and 20c on the great circle C of the golf ball 12 at 90 ° intervals. In this case, as shown in FIGS. 2 (a) and 2 (b), it can be easily seen from above and from the side. Further, by providing three marks 20a, 20b, and 20c, the design can be improved and the appearance can be made beautiful.

  Also in the golf ball 12 of the present embodiment, for example, the mark 20b is directed in the hitting direction, similarly to the golf ball 10 of the first embodiment. Then, the face surface is aligned with an imaginary line passing through the mark 20b, the mark 20a, and the mark 20c. Thereafter, the golfer can determine the position of the foot to perform a stroke according to the hitting direction, using the three marks 20b, 20a, and 20c as a guide, and can hit the ball with an address. Thereby, hitting directionality can be improved and the score can be improved.

  Also, when the golf ball 12 is rotated by 90 ° from the state shown in FIG. 2A and the mark 20b is in the uppermost state as shown in FIG. 2C, the marks 20a and 20b are moved upward. And can be confirmed from the side. Even in this case, it is possible to determine the position of the golfer's foot using the two marks 20a and 20b as a guide, hit the ball with an address.

  Thus, also in the golf ball 12 of the present embodiment, the three marks 20a, 20b, and 20c can be visually recognized from above and from the side, and the three marks 20a, 20b, and 20c are used as a guideline. The position of the golfer's foot can be determined, the address can be given and the ball can be hit. Thereby, hitting directionality can be improved and the score can be improved.

Next, a third embodiment of the present invention will be described.
3A is a plan view showing a golf ball according to a third embodiment of the present invention, FIG. 3B is a side view of FIG. 3A, and FIG. It is a top view which shows the state rotated 90 degrees from the state of a), (d) is a side view of FIG.3 (c), (e) is rotated 90 degrees from the state of FIG.3 (c). It is a top view which shows the made state, (f) is a side view of FIG.3 (e).
The same components as those of the golf ball 10 of the first embodiment shown in FIGS. 1A to 1D are denoted by the same reference numerals, and detailed description thereof is omitted. Further, in FIGS. 3A, 3C, and 3E, the ground P is not shown.

  The golf ball 14 of this embodiment has four marks 20a, 20b, 20c, and 20d as compared to the golf ball 10 of the first embodiment (see FIGS. 1A and 1B). The other points are the same as those of the golf ball 10 of the first embodiment, and the detailed description thereof is omitted.

Also in the golf ball 14 of the present embodiment, the four marks 20a, 20b, 20c, and 20d are formed on the great circle C, and the spacing between the marks 20a, 20b, 20c, and 20d is the great circle C. Are equally spaced (90 ° intervals) with respect to the center G. The marks 20a, 20b, 20c, and 20d are all the same circular shape and have the same size. Each of these marks 20a, 20b, 20c, and 20d preferably has a diameter D larger than 7 mm. Moreover, the upper limit of the diameter D of each mark 20a, 20b, 20c, 20d is not specifically limited. The upper limit of the diameter D is preferably 25 mm or less, and more preferably 20 mm or less.
In the present invention, by making the diameter D of each mark 20a, 20b, 20c, 20d larger than 7 mm, the distinguishability of each mark 20a, 20b, 20c, 20d is improved. For this reason, it is preferable that the diameter D of each mark 20a, 20b, 20c, 20d is larger than 7 mm.

  Also in the golf ball 14 of the present embodiment, four marks 20a, 20b, 20c, and 20d are provided at 90 ° intervals on the great circle C of the golf ball 14 so that the golf ball 14 is aligned in the hitting direction. As shown in FIGS. 3A and 3B, it can be easily seen from above and from the side. Further, by providing four marks 20a, 20b, 20c, and 20d, the design can be improved and the appearance can be made beautiful.

  Also in the golf ball 14 of the present embodiment, for example, the mark 20b is directed in the hitting direction, similarly to the golf ball 10 of the first embodiment. Then, the face surface is aligned with an imaginary line passing through the mark 20b, the mark 20a, and the mark 20c. Thereafter, the golfer can determine the position of the foot to perform a stroke according to the hitting direction, using the three marks 20b, 20a, and 20c as a guide, and can hit the ball with an address. Thereby, hitting directionality can be improved and the score can be improved.

  Also, when the golf ball 14 is rotated by 90 ° from the state shown in FIG. 3A and the mark 20b is in the uppermost state as shown in FIG. 3C, the marks 20a, 20b, and 20d are also displayed. Can be confirmed from above and from the side. Even in this case, it is possible to determine the position of the golfer's foot using the three marks 20a, 20b, and 20d as a guide, hit the ball with an address.

  Further, when the golf ball 14 is rotated by 90 ° from the state shown in FIG. 3C and the mark 20d is in the uppermost state as shown in FIG. 3E, the marks 20b, 20c, and 20d are also displayed. Can be confirmed from above and from the side. Even in this case, it is possible to determine the position of the golfer's foot using the three marks 20b, 20c, and 20d as a guide, hit an address and hit the ball.

  Thus, also in the golf ball 14 of the present embodiment, three marks out of the four marks 20a, 20b, 20c, and 20d can be viewed from above and from the side, and the three marks As a guide, you can determine the position of the golfer's foot, hit the address and hit the ball. Thereby, hitting directionality can be improved and the score can be improved.

  Further, in the golf ball 14 of the present embodiment, four marks are provided at 90 ° intervals, so any one of the four marks 20a, 20b, 20c, and 20d is placed in the hitting direction. If you point it, you can match the direction of the ball. When there are two and three marks, it is necessary to search for the mark and match the hitting direction, but this is not necessary.

Next, a fourth embodiment of the present invention will be described.
4A is a plan view showing a golf ball according to a fourth embodiment of the present invention, FIG. 4B is a side view of FIG. 4A, and FIG. It is a top view which shows the state rotated 90 degrees from the state of a), (d) is a side view of FIG.4 (c), (e) is rotated 90 degrees from the state of FIG.4 (c). It is a top view which shows the made state, (f) is a side view of FIG.4 (e).
The same components as those of the golf ball 10 of the first embodiment shown in FIGS. 1A to 1D are denoted by the same reference numerals, and detailed description thereof is omitted. Further, in FIGS. 4A, 4C, and 4E, the ground P is not shown.

  The golf ball 16 of this embodiment has four marks 20a, 20b, 20c, and 20d as compared to the golf ball 10 of the first embodiment (see FIGS. 1A and 1B). Further, the difference is that side marks 22a and 22b are formed at equal intervals with respect to the mark 20b and the mark 20c on the second great circle S orthogonal to the great circle C and passing through the mark 20b and the mark 20c. The other configuration is the same as that of the golf ball 10 of the first embodiment, and the detailed description thereof is omitted.

Also in the golf ball 16 of the present embodiment, the four marks 20a, 20b, 20c, and 20d are formed on the great circle C, and the arrangement interval between the marks 20a, 20b, 20c, and 20d is the great circle C. Are equally spaced (90 ° intervals) with respect to the center G. The marks 20a, 20b, 20c, and 20d are all the same circular shape and have the same size. Each of these marks 20a, 20b, 20c, and 20d preferably has a diameter D larger than 7 mm. Moreover, the upper limit of the diameter D of each mark 20a, 20b, 20c, 20d is not specifically limited. The upper limit of the diameter D is preferably 25 mm or less, and more preferably 20 mm or less.
In the present invention, by making the diameter D of each mark 20a, 20b, 20c, 20d larger than 7 mm, the distinguishability of each mark 20a, 20b, 20c, 20d is improved. For this reason, it is preferable that the diameter D of each mark 20a, 20b, 20c, 20d is larger than 7 mm.

Also in the golf ball 16 of the present embodiment, four marks 20a, 20b, 20c, and 20d are provided at 90 ° intervals on the great circle C of the golf ball 16 so that the golf ball 16 is aligned in the hitting direction. As shown in FIGS. 4A and 4B, it can be easily seen from above and from the side. Further, when viewed from the side, the side marks 22a and 22b can determine whether or not the golf ball 18 is placed more accurately in accordance with the hitting direction.
In this embodiment, by providing four marks 20a, 20b, 20c and 20d and further providing two side marks 22a and 22b, the design can be improved and the appearance can be made beautiful.

  Also in the golf ball 16 of the present embodiment, for example, the mark 20b is directed in the hitting direction, similarly to the golf ball 10 of the first embodiment. Then, the face surface is aligned with an imaginary line passing through the mark 20b, the mark 20a, and the mark 20c. Thereafter, the golfer can determine the position of the foot to perform a stroke according to the hitting direction, using the three marks 20b, 20a, and 20c as a guide, and can hit the ball with an address. Thereby, hitting directionality can be improved and the score can be improved.

  Further, when the golf ball 14 is rotated by 90 ° from the state shown in FIG. 4A and the mark 20b is in the uppermost state as shown in FIG. 4C, the marks 20a, 20b, and 20d are also displayed. Can be confirmed from above and from the side. Even in this case, it is possible to determine the position of the golfer's foot using the three marks 20a, 20b, and 20d as a guide, hit the ball with an address.

  Further, when the golf ball 14 is rotated by 90 ° from the state shown in FIG. 4C and the mark 20d is in the uppermost state as shown in FIG. 4E, the marks 20b, 20c, and 20d are also displayed. Can be confirmed from above and from the side. Even in this case, it is possible to determine the position of the golfer's foot using the three marks 20b, 20c, and 20d as a guide, hit an address and hit the ball.

  Thus, also in the golf ball 14 of the present embodiment, three marks out of the four marks 20a, 20b, 20c, and 20d can be viewed from above and from the side, and the three marks As a guide, in order to perform a stroke according to the direction of the ball, the position of the foot can be determined, and the ball can be hit with an address. Thereby, hitting directionality can be improved and the score can be improved.

  Further, in the golf ball 14 of the present embodiment, four marks are provided at 90 ° intervals, so any one of the four marks 20a, 20b, 20c, and 20d is placed in the hitting direction. If you point it, you can match the direction of the ball. When there are two and three marks, it is necessary to search for the mark and match the hitting direction, but this is not necessary.

Next, a fifth embodiment of the present invention will be described.
FIG. 5A is a plan view showing a golf ball according to a fifth embodiment of the present invention, FIG. 5B is a side view of FIG. 5A, and FIG. It is a top view which shows the state rotated 90 degrees from the state of a), (d) is a side view of FIG.5 (c), (e) is rotated 90 degrees from the state of FIG.5 (c). It is a top view which shows the made state, (f) is a side view of FIG.5 (e).
The same components as those of the golf ball 14 of the third embodiment shown in FIGS. 3A to 3F are denoted by the same reference numerals, and detailed description thereof is omitted. 5A, 5C, and 5E, the illustration of the ground P is omitted.

  The golf ball 18 according to the present embodiment has a rhombus shape in the marks 24a, 24b, 24c, and 24d as compared with the golf ball 14 according to the third embodiment (see FIGS. 3A and 3B). However, the rest of the configuration is the same as that of the golf ball 10 of the first embodiment, and a detailed description thereof will be omitted.

  Also in the golf ball 18 of the present embodiment, the four marks 24a, 24b, 24c, 24d are formed on the great circle C, and the arrangement interval between the mark marks 24a, 24b, 24c, 24d is a great circle. Equal intervals (90 ° intervals) with respect to the center G of C. The marks 24a, 24b, 24c, and 24d are all the same rhombus and have the same size.

The marks 24a, 24b, 24c, and 24d in the present embodiment are rhombuses, and one of the two diagonals is arranged on the great circle C with the first diagonal line. Let L be the length of the first diagonal line that is arranged on the great circle C. The length of the remaining second diagonal line is W. In the present embodiment, the length of the shortest portion of the marks 24a, 24b, 24c, and 24d is preferably 10 mm or less. Further, the lower limit of the length of the shortest portion of the marks 24a, 24b, 24c, and 24d is not particularly limited. The lower limit of the length of the shortest part of these marks 24a, 24b, 24c, 24d is preferably 1 mm or more, and more preferably 3 mm or more.
In the present invention, by setting the length of the shortest portion of each mark 24a, 24b, 24c, 24d to 10 mm or less, it is easy to position the ball hitting direction using each mark 24a, 24b, 24c, 24d. In addition, it is preferable in terms of appearance. For this reason, it is preferable that the length of the shortest part of each mark 24a, 24b, 24c, 24d is 10 mm or less.

Even if the marks 24a to 24d are rhombuses, the size of each of the marks 24a to 24d is the diameter of a circle that can completely enclose each of the marks 24a to 24d (hereinafter referred to as an inclusion circle). It is preferable that it is larger than 7 mm. In this case, the distinguishability of the marks 24a to 24d is improved by making the diameter of the inner circle larger than 7 mm.
Note that the upper limit of the diameter of the inner circle is not particularly limited. The upper limit of the diameter of the inner circle is preferably 25 mm or less, and more preferably 20 mm or less.

  Also in the golf ball 18 of the present embodiment, four marks 24a, 24b, 24c, and 24d are provided at 90 ° intervals on the great circle C of the golf ball 18 so that the golf ball 18 is aligned in the hitting direction. As shown in FIGS. 5A and 5B, it can be easily viewed from above and from the side. Further, by providing four marks 24a, 24b, 24c, and 24d, the design can be improved and the appearance can be made beautiful.

  Also in the present embodiment, the side marks 22a and 22b are arranged at equal intervals with respect to the marks 24b and 24c on the second great circle S orthogonal to the great circle C and passing through the marks 24b and 24c. It may be formed.

  Also in the golf ball 18 of the present embodiment, for example, the mark 24b is directed in the hitting direction, similarly to the golf ball 14 of the third embodiment. Then, the face surface is aligned with an imaginary line passing through the mark 24b, the mark 24a, and the mark 24c. After that, the golfer can determine the position of the foot to perform a stroke according to the hitting direction, using the three marks 24b, 24a, and 24c as a guide, and hit the ball with an address. Thereby, hitting directionality can be improved and the score can be improved.

  Also, when the golf ball 18 is rotated by 90 ° from the state shown in FIG. 5A and the mark 24b is in the uppermost state as shown in FIG. 5C, the marks 24a, 24b, and 24d are also formed. Can be confirmed from above and from the side. Even in this case, it is possible to determine the position of the golfer's foot using the three marks 24a, 24b, and 24d as a guide, hit an address and hit the ball.

  Further, when the golf ball 18 is rotated by 90 ° from the state shown in FIG. 5C and the mark 24d is in the uppermost state as shown in FIG. 5E, the marks 24b, 24c, and 24d are also formed. Can be confirmed from above and from the side. In this case as well, the golfer can determine the position of the foot of the golfer using the three marks 24b, 24c, and 24d as a guide, and can hit the ball with an address.

  Thus, also in the golf ball 18 of the present embodiment, three marks out of the four marks 24a, 24b, 24c, 24d can be viewed from above and from the side, and the three marks As a guide, you can determine the position of the golfer's foot, hit the address and hit the ball. Thereby, hitting directionality can be improved and the score can be improved.

  In addition, in the golf ball 18 of the present embodiment, four marks are provided at 90 ° intervals, so any one of the four marks 24a, 24b, 24c, and 24d is placed in the hitting direction. If you point it, you can match the direction of the ball. When there are two and three marks, it is necessary to search for the mark and match the hitting direction, but this is not necessary.

Although the marks 20a to 20d are circular in the first to fourth embodiments described above, the shape of the marks 20a to 20d is not particularly limited in the present invention. For example, it may be a polygon such as a triangle and a rectangle, or a geometric shape such as an ellipse, or may indicate a logo or character of a company or a product.
In the golf ball of the present invention, by providing three marks at 90 ° intervals, the hitting direction can be more easily positioned and the hitting direction can be further improved. Furthermore, in the golf ball of the present invention, by providing four marks at 90 ° intervals, the hitting direction can be more easily positioned and the hitting direction can be further improved.

  Furthermore, in the present invention, for example, a composite mark 40 as shown in FIG. The mark 40 includes a mark 20a and a mark 42 such as a character indicating a product name of the golf ball, a brand name of the golf ball, or a manufacturer name of the golf ball. According to the form of the golf ball, at least two marks 40 are provided on the great circle C at intervals of 90 ° with respect to the center G of the great circle C.

In the present invention, a composite mark 44 shown in FIG. The mark 44 includes a circular mark 46 having an identification number 48 of “3” and indicated by a white character, and a character indicating a product name of a golf ball, a brand name of a golf ball, a name of a golf ball manufacturer, or the like. It consists of a mark 42. Even in this case, at least two marks 44 are provided on the great circle C at intervals of 90 ° with respect to the center G of the great circle C according to the form of the golf ball.
Further, by providing at least two marks 40 and 44, the design can be improved and the appearance can be made beautiful. Even in this case, it is preferable to provide three marks 40 and 44 at intervals of 90 ° because positioning in the hitting direction becomes easier. In addition, it is more preferable to provide four marks 40 and 44 at intervals of 90 ° because positioning in the hitting direction becomes even easier.

In addition, also in the marks 40 and 44 shown to FIG. 6 (a) and (b), it is preferable that the length of the shortest part is 10 mm or less. Further, the lower limit of the length of the shortest portion of the marks 40, 44 is preferably 1 mm or more, more preferably 3 mm or more, like the marks 24a, 24b, 24c, 24d.
In addition, also in the marks 40 and 44, by setting the length of the shortest portion to 10 mm or less, it is easy to position the ball in the hitting direction using the marks 40 and 44, and the appearance is also preferable.

The size of each mark 40, 44 is preferably such that the diameter of a circle (including circle) that can completely enclose each mark 40, 44 is greater than 7 mm. In this case, the distinguishability of the marks 40 and 44 is improved by making the diameter of the inner circle larger than 7 mm.
Note that the upper limit of the diameter of the inner circle is not particularly limited. The upper limit of the diameter of the inner circle is preferably 25 mm or less, and more preferably 20 mm or less.

  In the fifth embodiment described above, the marks 24a to 24d are diamond-shaped, but the present invention is not particularly limited thereto. For example, the composite mark 50 shown in FIG. The mark 50 includes a mark 24a and a mark 42 such as a character indicating a product name of the golf ball, a brand name of the golf ball, or a manufacturer name of the golf ball. At least two marks 50 are provided on the great circle C at intervals of 90 ° with respect to the center G of the great circle C according to the form of the golf ball.

In the present invention, a composite mark 52 shown in FIG. The mark 52 includes a rhombus mark 54 having an identification number 56 of “3” and marked with a white character, characters indicating a golf ball product name, a golf ball brand name, a golf ball manufacturer, or the like. It consists of a mark 42. Also in this case, at least two marks 52 are provided on the great circle C at intervals of 90 ° with respect to the center G of the great circle C according to the form of the golf ball.
Further, by providing at least two marks 50 and 52, the design can be improved and the appearance can be made beautiful. Even in this case, it is preferable to provide three marks 50 and 52 at intervals of 90 ° because positioning in the hitting direction becomes easier. In addition, it is more preferable to provide four marks 50 and 52 at intervals of 90 ° because positioning in the hitting direction becomes even easier.

In addition, also in the marks 50 and 52 shown in FIGS. 7A and 7B, the length of the shortest portion is preferably 10 mm or less. Also, the lower limit of the length of the shortest part of the marks 50 and 52 is preferably 1 mm or more, and more preferably 3 mm or more, like the marks 24a, 24b, 24c and 24d.
In addition, also in the marks 50 and 52, by setting the length of the shortest portion to 10 mm or less, the positioning of the hitting direction using the marks 50 and 52 can be easily performed, and the appearance is also preferable.

The size of each mark 50, 52 is preferably such that the diameter of a circle (including circle) that can completely enclose each mark 50, 52 is greater than 7 mm. In this case, the distinguishability of the marks 50 and 52 is improved by making the diameter of the inner circle larger than 7 mm.
Note that the upper limit of the diameter of the inner circle is not particularly limited. The upper limit of the diameter of the inner circle is preferably 25 mm or less, and more preferably 20 mm or less.

  In addition, each size of the mark such as the diameter of the mark and the length of the shortest portion of the mark in the golf ball of the present invention is such that the straight line passing through the center of the golf ball and the center of the mark is a normal line. Is measured using a caliper or the like in the state of projecting. Thus, each mark size such as the mark diameter and the shortest length of the mark in the golf ball of the present invention is not measured along the surface of the golf ball.

  Furthermore, the golf ball of the present invention is a two-piece ball with a core and a cover, or a three-piece ball with a cover having a two-layer structure, and the configuration of the golf ball of the present invention is not particularly limited.

  The golf ball of the present invention has been described above, but the present invention is not limited to the above-described embodiments, and various improvements or modifications may be made without departing from the spirit of the present invention. is there.

BRIEF DESCRIPTION OF THE DRAWINGS (a) is a top view which shows the golf ball based on the 1st Example of this invention, (b) is a side view of Fig.1 (a), (c) is FIG.1 (a). It is a top view which shows the state rotated 90 degrees from the state of (1), (d) is a side view of FIG.1 (c). (A) is a top view which shows the golf ball based on the 2nd Example of this invention, (b) is a side view of Fig.2 (a), (c) is FIG.2 (a). It is a top view which shows the state rotated 90 degrees from this state, (d) is a side view of FIG.2 (c). (A) is a top view which shows the golf ball based on the 3rd Example of this invention, (b) is a side view of Fig.3 (a), (c) is FIG.3 (a). It is a top view which shows the state rotated 90 degrees from the state of (a), (d) is a side view of FIG.3 (c), (e) rotated 90 degrees from the state of FIG.3 (c). It is a top view which shows a state, (f) is a side view of FIG.3 (e). (A) is a top view which shows the golf ball based on the 4th Example of this invention, (b) is a side view of Fig.4 (a), (c) is FIG.4 (a). It is a top view which shows the state rotated 90 degrees from the state of (4), (d) is a side view of FIG.4 (c), (e) was rotated 90 degrees from the state of FIG.4 (c). It is a top view which shows a state, (f) is a side view of FIG.4 (e). (A) is a top view which shows the golf ball based on the 5th Example of this invention, (b) is a side view of Fig.5 (a), (c) is FIG.5 (a). It is a top view which shows the state rotated 90 degrees from the state of (a), (d) is a side view of FIG.5 (c), (e) rotated 90 degrees from the state of FIG.5 (c). It is a top view which shows a state, (f) is a side view of FIG.5 (e). (A) is a schematic diagram which shows an example of the mark provided in the golf ball of 1st Example-4th Example of this invention, (b) is 1st Example-1st of this invention. It is a schematic diagram which shows the other example of the mark provided in the golf ball of 4 Example. (A) is a schematic diagram which shows an example of the mark provided in the golf ball of the 5th Example of this invention, (b) is a mark of the mark provided in the golf ball of the 5th Example of this invention. It is a schematic diagram which shows another example. It is a typical perspective view which shows the state which put the golf ball on the ground. (A) is a 1st side view which shows the conventional 1st golf ball, (b) is a top view which shows the 1st conventional golf ball, (c) is the 1st conventional 1 FIG. 4D is a second side view showing the golf ball of FIG. 1, and FIG. 4D is a third side view showing the conventional first golf ball. (A) is a 1st side view which shows the conventional 2nd golf ball, (b) is a top view which shows the 2nd conventional golf ball, (c) is 2nd conventional It is a 2nd side view which shows this golf ball. (A) is a 1st side view which shows the conventional 3rd golf ball, (b) is a top view which shows the 3rd conventional golf ball, (c) is 3rd conventional It is a 2nd side view which shows this golf ball.

Explanation of symbols

10, 12, 14, 16, 18 Golf balls 20a, 20b, 20c, 20d Marks 22a, 22b Side marks 24a, 24b, 24c, 24d Mark 42 Mark 44, 50 Mark 46 Circular mark 48, 56 Identification number 54 Diamond mark 100 Golf Ball 110 First Golf Ball 112, 122, 132 Mark 118 Logo 120 Second Golf Ball 130 Third Golf Ball C Great Circle G Center S Other Great Circle

Claims (4)

  A golf ball characterized in that at least two marks of the same shape are provided at 90 ° intervals on a great circle on the surface.   The golf ball according to claim 1, wherein the mark is larger than a circle having a diameter of 7 mm.   The golf ball according to claim 1, wherein a length of the shortest portion of the mark is 10 mm or less.   The golf ball according to claim 1, wherein the mark is marked with an identification number.

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