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Golf ball

Pending Publication Date: 2022-06-23
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a golf ball with high visibility and excellent orientation at shot. This is achieved by using a mathematical formula to ensure the first and second colors have complementary colors. This makes it easy for golfers to find the ball on the rough. Overall, the invention results in a more visible and easily oriented golf ball.

Problems solved by technology

In case of bad weather conditions such as rainy, cloudy, foggy and dim conditions, it is difficult to follow the trajectory of the white golf ball and visually recognize where the golf ball falls.
In addition, in a case that the white golf ball lies on dead grass, it is difficult to find the golf ball even if the golf ball is nearby.

Method used

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Experimental program
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Effect test

examples

[0139]Next, the present invention will be described in detail by way of examples. However, the present invention is not limited to the examples described below. Various changes and modifications without departing from the spirit of the present invention are included in the scope of the present invention.

[Evaluation Method]

(1) Color Tone

[0140]The color tone of the intermediate layer and the golf ball surface was measured with a color difference meter (“CM-350d” available from KONICA MINOLTA, INC.). The color tone of the golf ball was measured in a state that the paint film was formed on the golf ball body.[0141]Measuring conditions[0142]Measuring wavelength range: 360 nm to 740 nm[0143]Measuring region (diameter): 8 mmφ[0144]Measuring time: 1 second

(2) Easiness of Finding a Golf Ball on the Rough

[0145]The golf balls were sunk in the rough (length of grass: 5 cm to 10 cm) at a distance of 1 m to 10 m from the tester with an interval of 1 m. The longest distance at which the tester cor...

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PUM

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Abstract

An object of the present invention is to provide a golf ball having high visibility and excellent orientation at shot. The present invention provides a golf ball comprising a core and a cover disposed outside of the core, wherein a surface of the golf ball has a first region with a first color and a second region with a second color, the first color has hue H1 represented by H value in HSL color space, the second color has hue H2 represented by H value in HSL color space, and the H1 and the H2 satisfy the following mathematical formula (1): 60<|H1−H2|<300 (1).

Description

FIELD OF THE INVENTION[0001]The present invention relates to a golf ball, and particularly relates to a colored golf ball.DESCRIPTION OF THE RELATED ART[0002]Conventionally, a golf ball is white. In case of bad weather conditions such as rainy, cloudy, foggy and dim conditions, it is difficult to follow the trajectory of the white golf ball and visually recognize where the golf ball falls. In addition, in a case that the white golf ball lies on dead grass, it is difficult to find the golf ball even if the golf ball is nearby. In addition, recently, golf players desiring a fashionable golf ball are also increasing. Under such circumstances, a colored golf ball has been proposed in order to satisfy the requirements such as the fashionable appearance and the visibility under bad weather conditions.[0003]JP S63-38476 A discloses a method for producing a golf ball, comprising covering a first hemispherical shell and a core charged into a hemispherical concave portion of a lower mold havi...

Claims

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Application Information

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IPC IPC(8): A63B37/00
CPCA63B37/00223A63B37/00373A63B37/00221A63B37/0076A63B37/0075A63B37/0074
Inventor KAJIKAWA, TAKASHIINOUE, HIDETAKA
Owner SUMITOMO RUBBER IND LTD
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