In general, golf balls have a mark thereon. Typical examples of this mark are letters indicating the trade name, manufacturer name and the like.
In addition to the mark shown by letters, balls having a straight mark have been known. This straight mark is a linear mark provided along a great circle of the ball. According to visual observation, this linear mark seems to run almost straight. This straight mark is utilized in tee shots and putting. Upon preparing for tee shots, the player can place the ball him/herself. Upon preparing for putting, the player can pick up the ball once, and then can place it again. Upon preparing for tee shots and putting, the ball can be placed so that the straight mark suggests the intended direction. Precise address toward the target is enabled by placing the ball so that the straight mark suggests the intended direction, and addressing based on this straight mark.
SUMMARY OF THE INVENTION
The present invention relates to marks defined based on a technical idea that is completely different from those in the prior arts as described above. The mark according to the present invention exhibits a distinctive effect that could not be achieved by the aforementioned prior arts at all. The mark in the foregoing prior art can merely suggest the intended direction. In contrast, the mark according to the present invention can control orbit of the head, ballistic trajectory or impact point.
An object of the present invention is to provide a golf ball having marks which can control the orbit of the head, ballistic trajectory or impact point.
The golf ball according to one aspect of the present invention has a group of multiple marks which are visible at one view. This group of marks includes a target mark consisting of single or multiple marks provided along one great circle. This group of marks includes an inclined mark which appears to be inclined with respect to this target mark.
Preferably, the inclined mark is a linear mark which appears to be inclined with respect to the target mark.
The golf ball according to another aspect of the present invention has a group of multiple marks which are visible at one view. The group of marks includes a target mark consisting of single or multiple marks provided along one great circle. The group of marks includes a side mark provided on the side of this target mark. Preferably, this side mark has a dot shape.
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