JPS633856U

JPS633856U -

Info

Publication number: JPS633856U
Application number: JP9924986U
Authority: JP
Priority date: 1986-06-27
Filing date: 1986-06-27
Publication date: 1988-01-12

Description

[Brief explanation of the drawing]

第１図はボールのポール打ち、第２図はシーム
打ちの回転軸の説明図、第３，４図（比較例１の
説明図）は２０面体配列で、３３２個の１種デイ
ンプル配列パターン図、第５，６図は（比較例２
の説明図）は２０面体配列で、３９２個の１種デ
インプル配列パターン図、又第４，６図は、回転
軸がシーム部にある場合とポールにある場合の対
称性をも表している。第７，８図は２０面対によ
るボール球面を区画する方法の説明図、第９，１
０図と第１１，１２図は、本実施例の説明図で、
デインプル総数がそれぞれ３３２個、３９２個で
、４種デインプル配列パターン図である。１，２，３，４……デインプル、Ｐ……ボール
のポール、Ｓ……ボールのシーム部、Ｌ_１……ポ
ール打ちの時の、ボールの回転軸、Ｌ_２……シー
ム打ちの時の、ボールの回転軸。 Figure 1 is an explanatory diagram of the rotation axis for hitting the ball with a pole, Figure 2 is an explanatory diagram of the rotation axis for seam hitting, and Figures 3 and 4 (explanatory diagram of Comparative Example 1) are icosahedral arrays and 332 type 1 dimple array patterns. , Figures 5 and 6 are (Comparative Example 2)
(Explanatory diagram) is an icosahedral array with 392 type 1 dimple array patterns, and Figures 4 and 6 also represent the symmetry between when the axis of rotation is at the seam and when it is at the pole. Figures 7 and 8 are explanatory diagrams of the method of dividing the ball spherical surface by 20 surface pairs, Figures 9 and 1
Figure 0 and Figures 11 and 12 are explanatory diagrams of this example.
The total number of dimples is 332 and 392, respectively, and is a four-type dimple arrangement pattern diagram. 1, 2, 3, 4...Dimple, P...Pole of the ball, S...Seam of the ball, _L1 ...Axis of rotation of the ball when hitting the pole, _L2 ...When hitting the seam , the axis of rotation of the ball.

Claims

[Claims for Utility Model Registration] (1) A spherical triangular segment having a spherical surface circumscribing a regular icosahedron and equally divided by imaginary lines obtained by projecting the ridge lines of the icosahedron onto the spherical surface. A golf ball in which four types of dimples having different diameters are arranged completely or almost equally, including the imaginary dividing line. (2) There are four types of dimples: approximately 80 dimples with a diameter of 4.60 mm, approximately 112 dimples with a diameter of 3.90 mm, approximately 60 dimples with a diameter of 3.55 mm, and approximately 3.30 mm in diameter. 80 dimples, and the total number of dimples is approximately 332. (3) There are four types of dimples: approximately 100 dimples with a diameter of 4.40 mm, approximately 172 dimples with a diameter of 3.70 mm, approximately 60 dimples with a diameter of 3.35 mm, and approximately 3.10 mm in diameter. 60 dimples, and the total number of dimples is approximately 392.