摘要:
Molding equipment and related techniques for forming a golf ball are disclosed. The golf ball comprises a core and a cover layer, wherein the cover layer provides one or more deep dimples that extend through the cover layer to and/or into a layer or component underneath are disclosed. The molding equipment provides one or more selectively positionable knock-out pins along the surface of the molding chamber. These pins are specially tailored such that after their retraction subsequent to molding, the resulting voids are deep dimples. The molding equipment and related processes are particularly useful when forming the various layers by reaction injection molding.
摘要:
A golf ball with a dimple pattern designed to maximize flight characteristics employs dimples which are created by joining two or more intersecting surfaces. The invention provides for single radius or dual radius dimples, preferably including smaller radius cylinders tangentially arranged along the side of the larger cylinders. The intersection of the cylinders forms tri-cylinders, tri-semicylinders, bi-cylinders, quad-semicylinders, penta-semicylinders, or more generally n-cylinders depending upon the number of intersecting cylinders. The golf ball includes a plurality of single or dual radius dimples created by intersecting n-cylinders to create maximum turbulence on the ball during flight.
摘要:
A golf ball (20) having a non-planar parting line (25), a first false non-planar parting line (26a) and a second false non-planar parting line (26b). A first group 32 of parting dimples defines the non-planar parting line (25). A second group (33) of parting dimples defines the first false non-planar parting line (26a). A third group (34) of parting dimples defines the second false non-planar parting line (26b). A plurality of hexispheres (70) are defined by the non-planar parting line (25) the first false non-planar parting line (26a) and the second false non-planar parting line (26b).
摘要:
Pinless molding of a cover (24) for a golf ball (20), and an apparatus and method for manufacturing a golf ball precursor product (22) for use in pinless molding is disclosed herein. Preferably the golf ball precursor product (22) comprises a core (26) and a mantle layer (28). The golf ball precursor product (22) preferably has a plurality of lobes (30) extending from an innersphere (27). The plurality of lobes (30) allow the golf ball precursor product (22) to be centered within a cover mold without the use of pins for centering.
摘要:
An apparatus and method for demolding golf balls from a mold cavity are disclosed. More specifically, an apparatus and method for demolding a golf ball from a mold cavity subsequent to forming a cover layer without the use of ejector or knockout pins are disclosed. The molding apparatus utilizes an undercut configuration that, upon opening the molds after molding a golf ball, serves to impart a rotational force upon the ball and dislodge it from the molds.
摘要:
A golf ball (20) having a plurality of primary dimples (50) with annular tubular portion (60) is disclosed herein. In a preferred embodiment, there are 332 primary dimples which cover a surface area ranging from 81% to 87% of the golf ball (20). Also in a preferred embodiment, there are twenty different types of primary dimples (50), which vary in diameter, chord depth and/or entry angle.
摘要:
An isothermal golf ball core molding platen is characterized by the use of isobars for even temperature distribution across the surfaces of the platen. The platen is formed of metal and includes first channels which receive heating elements for heating the platens. Isobars are arranged in second channels adjacent to the first channels. The isobars include an outer sheath defining an evacuated chamber and an inner metallic wick. The isobar is charged with working fluid which changes phase with the application of heat. The phase change provides higher speed heat transfer to eliminate temperature gradients within the platen.
摘要:
The present invention relates to dimples and dimple patterns for golf balls (20), preferably dimple patterns composed of letters, symbols, logos and combinations thereof, inset into the cover of the golf ball (20). The golf ball (20) has dimples (40) and logo depressions (50) in a cover of the golf ball (20). The logo depressions (50) are preferably letters, symbols, logos and combinations thereof, inset into the cover of the golf ball (20).
摘要:
A golf ball (20) approaching zero land area is disclosed herein. The golf ball (20) has an innersphere with a plurality of primary lattice members (40) and a plurality of sub-lattice members (41). Each of the plurality of primary lattice members (40) has an apex and the golf ball (20) of the present invention conforms with the 1.68 inches requirement for USGA-approved golf balls. The interconnected primary lattice members (40) and plurality of sub-lattice members (41) preferably form a plurality of dual polygons, preferably dual hexagons and dual pentagons.
摘要:
A method and apparatus for forming golf ball cores with a generally spherical nucleus at its center is characterized by the use of a transfer plate which insures that the nucleus is centered within the core. The core is formed in upper and lower mold plates which contain upper and lower hemispherical cavities, respectively, which are adapted to mate to define a spherical cavity for the core. The transfer plate is arranged between the mold plates and includes a support for the nucleus to position the nucleus in the center of a pair of upper and lower slugs of core material which are molded in the upper and lower hemispherical cavities. When the mold plates are initially brought together with the transfer plate arranged therebetween and with the slugs arranged on opposite sides of the transfer plate, the slugs are partially molded in the hemispherical cavities with the nucleus being pressed into one of the slugs. The mold plates are then separated and the transfer plate is removed with the nucleus being retained in one of the slugs. Finally, the mold plates are brought together in mating fashion to form the core with the nucleus centrally arranged therein.