JPH054046Y2 - - Google Patents

Description

[Detailed explanation of the idea]

[Industrial Application Field] The present invention relates to a swing weight conversion rule for golf clubs, and more specifically, a swing weight conversion rule for performing mutual calculations between swing weight values based on the 12-inch method and swing weight values based on the 14-inch method. Regarding. [Prior Art] Even if the overall weight of the golf club is the same, a golf club with a heavier head will have a larger swing moment of inertia than a golf club with a lighter head. It becomes difficult to swing. A calculated value or symbol called swing weight or swing balance is used to quantitatively express the ease of swinging a golf club. Swing weight, or swing balance, is a measure of the moment exerted on the wrist when gripping a golf club and keeping it horizontal, and it is determined by the total weight of the golf club and the distance from the predetermined fulcrum position to the golf club's center of gravity. Determined by the distance between. When measuring or calculating swing weight, there is a 12-inch method in which the distance from the fulcrum position to the grip end of the golf club is 12 inches, and a 14-inch method in which the distance from the fulcrum position to the grip end of the golf club is 14 inches. be. Also, as a method to display the swing weight,
How to display the magnitude of moment in inches and ounces, and C ₁ ~ C ₀ , D ₁ instead of numerical values.
A common method is to use classification symbols such as ~ _D0 , _E1 ~ _E0 , etc. Table 1 below is a comparison table of swing weight values calculated using the 12-inch method in inches and ounces and classification symbols. As can be seen from Table 1, the commonly used classification symbols C ₁ to C ₀ ,
D ₁ to _{D 0} , E ₁ to _{E 0} , etc. are provided every 2 inches and ounces, and for wood clubs and iron clubs, values in inches and ounces and C ₁ to _{C 0} , D ₁ to D ₀ ,
Correspondence with classification symbols such as E ₁ to _{E 0} is 4 inches.
Off by an ounce.

【table】

【table】

Claims (1)

[Claims for Utility Model Registration] 1. Includes a fixed scale and a sliding scale that can slide relative to the fixed scale, and has a total weight scale on the fixed scale that displays the total weight of the golf club, and is calculated using a 12-inch system. Either a swing weight scale that displays the swing weight or a swing weight scale that displays the swing weight calculated using the 14-inch method is provided, and the other swing weight scale is set on the slide scale as a total weight scale on the fixed scale. Further, when any scale position of the swing weight scale on the slide scale is matched with any scale position of the total weight scale on the fixed scale, the swing on the slide scale is A swing weight conversion scale for a golf club, which is provided with a conversion indicator that indicates the scale position of a swing weight scale on a fixed scale corresponding to the scale position of a weight scale. 2. The golf club according to claim 1, wherein the fixed scale and the slide scale are formed into elongated shapes, the slide scale is slidably engaged with the fixed scale in the longitudinal direction, and each scale is a long scale extending linearly. Swing weight conversion rule. 3. Forming the fixed scale and the slide scale into disk shapes, and attaching the slide scale to the fixed scale so as to be rotatable,
2. A swing weight conversion scale for a golf club according to claim 1, wherein each scale is an angle scale extending in an arc shape. 4. The golf club swing weight conversion scale according to claim 1, further comprising a conversion instruction section for a wood club and a conversion instruction section for an iron club on the slide scale.