Patent Application
20220193498
The present invention relates to the technical fields of golf balls, and more particularly to a low spin golf ball.
In general, golf balls are primarily divided into high spin golf balls and low spin golf balls, and the high spin golf balls with a high spin rate provide a longer distance for a swing, and the low spin golf balls with a controlled/low spin rate give a better control over the golf balls due to a smaller chance of having a slice and/or a hook. The low spin golf balls usually come with a design that reduces a spin produced by a horizontal attribute of a golfer's swing and allow an outer shell of the golf ball to spin independently with respect to the core of the golf ball, and thus blocking the passage of the horizontal force to the core of the golf ball and resulting in a significant reduction of spin, and this result can be achieved by applying a lubricant between layers of the golf ball to allow an outer layer to damp or “absorb” the horizontal force as disclosed in U.S. Pat. No. 5,827,133. There are several things that can be done to improve the aforementioned patent. For example, the service life of a lubrication oil (one of the chemical compounds contained in the lubricant) may be shortened by temperature, oxidation, and contamination, and golf is usually played in hot weather, and the power of constant impacts may give rise to a high temperature inside the golf ball, and thus the oil may be deteriorated and its service life may be shortened by the high temperature. There is also a risk of contamination, especially when the golfer is hitting the golf ball into mud and dirt. If any of the aforementioned flaws occurs, the golf ball will act strangely, since the elastic material of the golf ball is hardened, and the lubrication oil is dried. These flaws are caused by the use of a chemical structure. If a physical structure were adopted instead, the risk of failure will be reduced significantly. Obviously, it is better to use physical structures instead of chemical compounds.
The present invention is directed to a golf ball manufactured by a method in compliance with the regulations set forth by the United States Golf Association (USGA) and capable of lowering the chance and severity of a golf ball to slice or hook when it is impacted. The present invention achieves the effect of blocking most of the horizontal forces that reach the core of the ball by a method without using any chemical compound.
Therefore, it is a primary objective of the present invention to provide a golf ball with a reduced spin in the trajectory of the golf ball.
To achieve the aforementioned and other objectives, the present invention discloses a low spin golf ball comprising a ball shell, a core layer, and at least two inner balls, symmetrically disposed between the ball shell layer and the core layer, and the whole golf ball is symmetrical with respect to its center.
The inner balls are essentially made of steel or copper, and these materials ensure the stability factor of the ball, and have the feature of a low friction with smooth surfaces, and this feature allows the golf ball to spin better.
The number of inner metal balls is determined by the weight to stability factor. The number of inner metal balls is preferably an even number greater than eight in order to maintain the required symmetricity. The size of the inner balls is related to the weight of the inner metal balls, which should be less than 0.05% of the total weight of the golf ball. A smaller size means a lesser weight, but a bigger size means a better durability, so that the balance between the size and the required function should be found. In practices, the inner metal ball is approximately equal to 0.3 mm to 1 mm, because the metal ball is a sphere, and its size determines the length from the core layer to the ball shell.
The golf ball further comprises a plurality of dents at the core layer and provided for maintaining the balls to stay in position without losing the symmetricity. One problem is that if the metal balls are moved out of position by impacts, these balls will not be allowed in an official game due to its asymmetrical structure. In order to solve this problem, a socket is provided to cover about ⅓ of the metal ball, while the outer shell is a smooth surface. This solution allows the ball shell to move and rotate, while keeping the metal balls to stay in position relative to the core of the golf ball. If we have dimple-like shaped members in the middle of the outer ball shell and the inner core layer, wherein one sticks out, and the other sticks in. In other words, the fully constructed ball should be solid. Because of the slight deformation produced by impacting the outer layer can spin the ball a little and locking the ball into another position. By using the same concept of the previous invention, the spin rate will also be reduced. This arrangement can meet the symmetricity requirement of standard golf rules
To fully comprehend the objective, feature and function of the present invention, a detailed description of the present invention is presented by the following exemplary embodiments together with the accompanying figures.
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Most conventional golf balls such as the Top Flite Strata™ golf balls have multiple layers preinstalled therein. In this embodiment of the invention, the outer ball shell 03 encompasses the core 02. The inner metal balls are inserted before the outer ball shell 03 is molded, and the mold of the outer layer is applied after the inner metal balls are inserted and secured. During the process, a lubricant is added to the inside of the outer layer 03, and the outside of the core 02 is lubricated to allow the inner metal balls to slide a lot better.
In summation of the description above, the low spin golf ball of the present invention has the effect of blocking most of the horizontal forces reaching the core of the ball by different ways without using any chemical compound.
Although the embodiments of the present invention are disclosed as above, these embodiments shall not be considered to restrict the present invention. Those modifications that persons having ordinary skill in the art may make to the shape, structure, feature, method and/or quantity according to the claims of the present invention shall be covered by the scope of the present invention and the protected scope of the present invention shall be considered by the claims attached to this specification.
