Abstract: On a golf ball--containing package, a rectangular indication section (4) is defined for indicating the performance of a golf ball. The section (4) is divided into rows of longitudinally arranged sub-sections (7). Marks (8) are formed on selected ones of the sub-sections (7) for indicating a golf ball structure, recommended head speed, feel, spin, green targeting, and trajectory.

Abstract: The present invention provides a thread-wound golf ball comprising a thread rubber ball prepared by winding thread rubber around a spherical solid center, and a cover enclosing the thread rubber ball therewith, which has a number of dimples of from 350 to 500 and a dimple volume rate of 0.76 to 0.9 percent, and wherein the solid center has an outer diameter of from 27 to 38 mm, a deformation under a load of 30 Kg of from 1.5 to 3.5 mm and a rebound, when dropped from a height of 120 cm, of at least 96 cm. The thread-wound golf balls of the present invention show good spin properties in addition to good restitution properties, resulting in improved travel distance.

Abstract: The present invention provides a thread wound golf ball which keeps good hit feeling inherently holding in thread wound golf balls and attains long flying distance which is equal to that attained by the two-piece solid golf ball. The thread wound golf ball comprises a center composed of a vulcanized molded article of a rubber composition, a thread rubber layer formed on said center and a cover covering on said thread rubber layer, wherein said center has a diameter of 30 to 35 mm and a strain amount formed between an initial loading of 10 kg and a final loading of 30 kg is 1.2 to 2.5 mm. The cover of the thread rubber layer has many dimples thereon and the product of total volume of the dimples and the diameter of the center is 8,500 to 11,000 mm.sup.3.mm.

Abstract: A dimple configuration for the surface of a golf ball is provided by selecting a fixed number of dimples, placing said dimples on a model of the ball in random, helter-skelter locations on one selected section without regard to the other dimples present, and identifying each dimple and the adjacent dimples which overlap it. For each dimple so identified, the aggregate component of overlap in the longitudinal and latitudinal directions is determined, the center of each dimple is relocated so as to minimize overlap, and the steps of identifying, determining, and relocating are repeated for each dimple until the aggregate overlap is reduced to a predetermined amount. The resultant ball provides a random dimple configuration which has no repeating patterns within the sections.

Abstract: A golf ball is disclosed with dimples uniformly distributed over its surface so that eight identical spherical triangles do not intersect any of the dimples. The surface of the golf ball is divided into 4 identical equilateral spherical triangles which are so oriented as to have the equator of the ball form a shared leg of two of the triangles and to bisect the remaining two triangles. The surface of the ball is further divided by constructing a second equator or great circle which is perpendicular to the first equator and bisects the two triangles not already bisected. The pole of the golf ball lies neither at the center nor at the intersection of the apices of any of the constraining figures.

Abstract: A dimpled golf ball is provided with a regular repeating dimple pattern by projecting on to the surface of the ball the edges of a regular octahedron, thereby forming eight equilateral triangles on the surface. Each of the eight equilateral triangles can then be divided into sub-triangles so that there are four, six, seven or nine dimple-free great circles on the ball.

Abstract: In the golf ball having a large number of dimples on its surface, a golf ball characterized in that dimples are arranged so as to satisfy the following condition for the plane development obtained by drawing imaginarily a great circle line to bisect the golf ball on the golf ball surface and developing the semisphere by the Lambert's equivalent projection. The center of the plane development is assigned to 0, drawing two large and small regular triangles .DELTA.ABC and .DELTA.abc centered at this 0 such that each vertex is in the same direction from the said center 0, extending each side of said small regular triangle .DELTA.abc so that it intersects each side of the large regular triangle .DELTA.ABC, thereby forming one regular triangle coinciding with said small regular triangle .DELTA.abc, three trapezoids, and three parallelograms, and arranging respectively 6 dimples in said one small regular triangle, 9 dimples in said trapezoid, and 4 dimples in said parallelogram.