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JP3643308B2 |
To enhance general purpose properties and stability by eliminating a necessity of a complicated gate regulation for consuming a time and a man- hour at a low mold cost and always assuring a filling balance without influence of a change o...
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JP2005103127A |
To provide design methods of a golf club, a golf ball, and a combination of golf club-golf ball, which satisfy desired optimal conditions of a characteristic value of the golf club or a characteristic value of behavior of the golf ball i...
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JP3639534B2 |
The invention includes methods of forming at least a portion of a golf ball core, and the golf balls prepared thereby, by mixing a resilient polymer component, a free radical initiator system, and a crosslinking agent to provide a first ...
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JP3639510B2 |
To provide a golf ball having excellent durability. At least one of cover layers of the golf ball consisting of a cover and core is characterized in that a polymer containing (1) a first monomer component containing a first olefin monome...
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JP2005095493A |
To provide a manufacturing method of a golf ball excellent in rebounding property without damaging manufacturing operability.The manufacturing method of the golf ball is for manufacturing a rubber composition for the golf ball containing...
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JP2005095629A |
To provide a method for automatically identifying an object, in order to solve the following problem that most swing analysis systems require an operator to manually enter the type of a club and a ball that are being used, and this has t...
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JP3636257B2 |
To obtain a golf ball having a satisfactory surface state for smoothly, effectively externally releasing gas, the air at the time of molding and preventing external appearance fault such as a weld mark by reducing formation of flash as m...
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JP3636259B2 |
To effectively, efficiently obtain a golf ball having a cover of uniform thickness without eccentric deviation even in the case of a thin cover. In the mold 1 for molding a golf ball comprising a hollow spherical cavity 4 including a cor...
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JP2005073962A |
To provide a spherical structure giving little impact when hitting against, eliminated from hurting a person or breaking an object and constantly retaining its spherical shape.This spherical body is formed by connecting a plurality of an...
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JP3630386B2 |
To provide a method for peeling off a cover of a golf ball, which can mechanically and efficiently peel off the cover from the golf ball, can enhance the efficiency of reproduction of a golf ball, and which can contribute to reduction of...
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JP2005052302A |
To provide a multi-piece golf ball provided with both of high resilience and soft feeling when hitting.The golf ball is provided with a core 1, an intermediate layer 3, and a cover 5. The intermediate layer 3 is provided with a plurality...
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JP2005027711A |
To provide a plastic spherical body, which has a skin with a uniform thickness on the surface of a spherical core body manufactured by insert molding without using a mechanical insert holding means such as a holding pin manufactured by t...
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JP3616054B2 |
The present invention is directed to an automated molding machine and method for forming hemispherical components for a golf ball. The machine includes an L-shaped frame and three separate plates. The plates move between longitudinally s...
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JP3616767B2 |
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JP2005021416A |
To provide a golf ball manufacturing method suppressing generation of bare in molding a spherical body.The golf ball manufacturing method includes a charging process for charging a rubber composition into an extruder 1, and a preforming ...
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JP3613682B2 |
To provide a multi-layered, multi-piece golf ball providing for both high resilience and a soft feeling at the hitting, and making it easy to achieve an accurate concentric arrangement of a core and an intermediate layer, and its method ...
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JP2005013354A |
To provide a ball for sports wherein a core covered by a skin is not eccentric, and its manufacturing method.A partial forming process for the skin and a remaining part forming process of the skin are performed in order. The partial form...
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JP2005007013A |
To provide a ball made of resin which is easily discriminated by each user in the case of using the ball in ground golf or park golf, which never disappears even when it is used for a long period, and which never influence straightness e...
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JP2005000647A |
To provide a golf ball which has optimal performance and durability, simultaneously can eaily be manufactured and includes an intermediate layer and a cover layer, and to provide its manufacturing method.The golf ball including a composi...
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JP2005000657A |
To provide an improved golf ball capable of providing optimal performance and durability while it is easy to manufacture.The core, intermediate layers and/or cover layers of the golf ball are formed of a composition containing an unsatur...
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JP2005000662A |
To provide an easy-to-manufacture improved golf ball while providing the optimal performance and durability of the ball.A composition includes a styrenic block copolymer and urethane. In a preferred embodiment, the styrenic block copolym...
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JP2004358864A |
To provide a rotational molding method of a hollow product of a polyurethane resin which has a uniform thickness and also a high dimensional accuracy and which is made free from a tear or the like on the occasion of releasing the product...
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JP2004350953A |
To provide a golf ball excellent in repulsion performance, a ball hitting feeling and durability, and also to provide its production method.The solid core of the golf ball is a rubber composition composed of organic peroxide as a microca...
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JP3601699B2 |
A laser is positioned relative to a rotating golf ball to remove any excess material, and if necessary to impart an aerodynamic pattern on particular areas of the golf ball, including the parting line. A preferred laser is a carbon dioxi...
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JP3597517B2 |
To improve the resilient performance of a golf ball by allowing the evaluation of an energy loss actually generated within the golf ball in the collision by a striking matter. This method comprising mesh-dividing a golf ball model into a...
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JP3594549B2 |
To provide a method of manufacturing a golf ball capable of providing a cover having even thickness and capable of giving an excellent initial ball speed and spin performance by infiltrating the cover material into clearances of rubber t...
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JP3592620B2 |
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JP2004321404A |
To provide a ball for a ball game which solves a trouble accompanying the use of a conventional solvent volatile type adhesive, and its manufacturing method.A reinforcing layer is formed by evenly winding a nylon yarn or a polyester yarn...
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JP3588646B2 |
A cover peeling machine includes a pair of rolls. The roll has an almost conical shape. Both of the rolls are rotated in a reverse direction. The direction of the rotation is an inward direction as seen from above. A golf ball is put clo...
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JP2004290315A |
To provide a method of manufacturing a golf ball using a mold releasing agent with excellent mold releasability and mold releasing durability, excellent in the close adhesiveness to a layer formed in the next process.The method of manufa...
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JP3578181B2 |
PURPOSE: To prevent the generation of rust or clogging to facilitate control by embedding a heat pipe in a mold and molding a cover layer while cooling the mold by the heat pipe. CONSTITUTION: The heating/cooling part formed to the rear ...
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JP3578180B2 |
PURPOSE: To simply demold a molded golf ball without damaging the same by arranging an ejector pin in a through-hole of which the projection area from a cavity surface is specific in a movable manner so as to allow the same to advance to...
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JP2004255013A |
To provide a golf ball producing method capable of enhancing uniformity.An uncrosslinked polymer composition 45 is inserted into a half shell molding die 17 having a half shell shape cavity 33, so as to mold the half shell 47. Then a cen...
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JP2004243033A |
To provide a golf ball producing method by which the disappearance of a mark on a golf ball is reduced, and excellent mark durability is achieved.In the method for producing the golf ball, the mark is pad-printed on the front surface of ...
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JP2004237479A |
To provide a method for manufacturing a resin ball capable of molding balls having various weights within a predetermined range while suppressing a production cost.In the method for manufacturing the resin ball by injecting a foamable re...
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JP3556851B2 |
A manufacturing method for an one-piece ball formed with vulcanization in which a partial mold has eight grooves in a radius direction of a mating face, and ends of spews generated when the vulcanization is conducted do not connect and u...
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JP3554408B2 |
A golf ball having a cover thickness of 3.0 to 5.0 mm is produced by a process which includes providing a core; covering the core with a cover composition to form a first cover layer having a thickness of 30 to 70% of a total cover thick...
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JP3555656B2 |
To obtain a resin composition for golf balls capable of providing molded products without delamination and the golf balls using the composition. This resin composition for the golf balls is characterized by compounding 100 pts.mass of th...
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JP2004223052A |
To provide a manufacturing method for a golf ball by which a cover can be formed thinly and evenly, and in addition, the carry and the spinning amount can be increased as well.This manufacturing method of the golf ball includes four proc...
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JP3553123B2 |
PURPOSE: To improve precision and work efficiency in a case in which a finger hole and a balance hole are piercingly provided at a bowling ball. CONSTITUTION: A frame body 20 to swing back and forth by the operation of a handle 26 is pro...
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JP2004215684A |
To provide a forming die for a golf ball, easy to discharge air and little generating a fin hard to remove.This forming die includes a holding pin 7. The holding pin 7 includes a tip part 19 and a side wall 21. The side wall 21 includes ...
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JP2004201874A |
To inexpensively manufacture a variety of surface shapes on a surface by cutting the surface of a pure master having a hemispherical surface with an end mill and forming recesses for dimpling the surface of the pure master, and improve t...
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JP2004194860A |
To achieve higher productivity by facilitating the taking out of a core and half shells out of a mold dice while maintaining the performance.The subject tennis ball 1 has the core 2, two felt parts 3 and seam parts 4. The core 2 is hollo...
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JP2004519292A |
A golfing aid having a body that includes two partially spherical ends with the same radii as each other, whereby the contact points are positioned between 4 and 20 millimetres apart, and methods of producing and using such a golfing aid.
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JP2004180921A |
To provide a liquid dye for a golf ball favorably dyeing diversified golf balls and to provide a dyeing device for the golf ball uniformly dyeing the golf ball in a simple operation.The liquid dye L is prepared by containing 5-60 pts.wt....
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JP2004166719A |
To provide a golf ball having the individualized appearance as well as the visibility, which the mark should inherently provide, by imparting the luster to the mark, without lowering the durability of the mark.This golf ball comprises a ...
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JP2004168977A |
To obtain a rubber composition for a solid golf ball capable of manufacturing in an excellently productive way a solid core which has an improved rebound performance while maintaining a soft hit-feeling characteristic, a method of manufa...
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JP2004514887A |
A system for inspecting indicia on a golf ball is disclosed herein. The system uses a multitude of cameras to analyze indicia that has been printed on the surface of the golf ball in order to accept or reject each golf ball. In a preferr...
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JP2004113782A |
To obtain a composition for a golf ball capable of optimizing a large number of performance characteristics without reducing other characteristics.The golf ball contains an ethylene-vinyl acetate polymer or an ethylene-vinyl acetate/acid...
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JP3516125B2 |
To provide a golf ball which provides a large carry, has excellent controllability, improves a feeling and contributes to an improvement in durability. This golf ball is constituted to have a solid core and covers consisting of two insid...
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