摘要:
An object of the present invention is to provide a golf ball which is excellent in abrasion-resistance and durability. The golf ball of the present invention comprises a cover using a cover composition containing thermoplastic polyurethane (A) and a polyisocyanate mixture (B) in which a urethane prepolymer (b-1a) having at least two isocyanate groups or a polyisocyanate (b-1b) having at least three isocyanate groups is dispersed in a thermoplastic resin (b-2) which does not substantially react with the isocyanate groups.
摘要:
A golf ball with a piezoelectric material portion allows golf ball data to be obtained when a golfer hits the golf ball with a golf club. An output from the piezoelectric material generated in response to the impact force of the golf club hitting the golf ball is measured. Based on the measured output, golf ball data can be obtained. The obtained golf ball data may be used by golf club fitting systems, golf ball fitting systems, and golfer profile databases.
摘要:
Electrical power can be generated from impact based energy, such as from a golf ball being struck by a golf club. One or more piezo-electric devices, which are embedded in the core of the golf ball, are stressed by the impact and generate energy. Each piezo-electric device generates energy when stressed, which is then rectified and stored in a capacitor circuit. The stored energy in the capacitor circuit is used to power a transmitter to emit energy via an antenna, including all necessary electronics such as an oscillator, a modulator, and various control and logic circuits. The transmitted signals can be received by a hand held locator device. The described impact generated energy powers the transmitter a sufficiently long amount of time for the golfer to locate the golf ball. The impact based energy generation can also be used for other non-golf applications.
摘要:
This invention is directed to golf balls having at least two adjacent layers, wherein a coating layer of metal materials is on at least one surface of the adjacent layers. The adhesion of the adjacent layer is improved by induction heating. The invention also is directed to ink solution for golf equipment comprising metal materials that can improve adhesion of the ink to the golf equipment.
摘要:
An object of the present invention is to provide a golf ball which is excellent in abrasion-resistance and durability. The golf ball of the present invention comprises a cover using a cover composition containing thermoplastic polyurethane (A) and a polyisocyanate mixture (B) in which a urethane prepolymer (b-1a) having at least two isocyanate groups or a polyisocyanate (b-1b) having at least three isocyanate groups is dispersed in a thermoplastic resin (b-2) which does not substantially react with the isocyanate groups.
摘要:
A multi-piece golf ball has a core (3), an interlayer (5), and a cover (7), the core (3) being provided with a spherical main part (31) and a plurality of ribs (32) formed on the main part (31), the interlayer (5) being accommodated in depressions (33) surrounded by the ribs (32) and having a thickness substantially the same as the height of the ribs (32), each of the ribs (32) extending in such a manner that the width thereof becomes greater from the cover towards the core, each of the depressions (33) being formed into a cone-like shape by side faces of the ribs (32), and the hardness of the interlayer (5) being less than that of the core (3). This structure achieves satisfactory soft feeling and high bounce resilience.
摘要:
A golf ball comprising a pre-formed non-spherical inner core insert; an outer core molded about the insert to form a sphere having an outer surface; and a cover disposed about the outer core, the cover having an outer dimpled surface; wherein the outer core and cover are optically transparent or translucent.
摘要:
A golf ball having an identification device (10) embedded in it comprises an aerial (14) and a coded chip (12), which are associated with a resilient member (16) arranged to dampen shock form impact. The resilient members is in the form of a diaphragm (16), to which the chip (12) and aerial (14) are separately connected. The above components, mounted on an insulating plate (11), are moulded in a capsule (20) which is then placed at the center of a golf ball core.
摘要:
A golf ball is provided having a controlled variable moment of inertia. The golf ball includes a core defining at least one hollow channel. At least one movable weight is located within each hollow channel. The end of the hollow channel at the outer edge of the core is enclosed with a plug. The movable weight and plug may each further include a magnet or the hollow channel may include a placement member such as a spring to control the movement of the weight. When the present golf ball is struck, the spin rate forces the weights to move from the interior of the core outwardly towards the outer edge of the core, thereby varying the moment of inertia of the golf ball. A method of manufacturing the present golf ball is also provided. The golf ball also significantly reduces hooks and slices due to the gyroscopic effect of the moving weight(s) to the outer edge of the core.
摘要:
A method for making a golf ball includes step of placing an illumination member on a rack which has legs extending radially therefrom; step of installing the rack with the illumination member in a lower mold; step of mounting an upper mold onto, the lower mold and pouring thermo-setting or thermo-plastic translucent resin in a space between the upper mold and the lower mold to form a core enclosing the illumination member; step of enclosing the core by a mediate layer, and step of enclosing the mediate layer by an outer layer which includes dimples.