Title:
ゴルフボール
Document Type and Number:
Japanese Patent JP6958285
Kind Code:
B2
Abstract:
A golf ball 2 includes a core 4 and a cover 6 positioned outside the core 4. The cover 6 is formed in a mold having support pins by injection molding. A ratio (V/S) of a volume V (mm3) of the cover 6 to an amount of compressive deformation S (mm) of the core 4 is not less than 1000 and not greater than 1900. The cover 6 has a shore D hardness of not greater than 62. The golf ball 2 has a plurality of dimples 8 on a surface thereof. A total volume W of these dimples is not less than 490 mm3 and not greater than 620 mm3. A ratio (α/P) of a latitude α (degree) of each support pin to a total cross-sectional area P (mm2) of the support pins is not less than 0.35 and not greater than 0.60.
Inventors:
Takahiro Sajima
Hiroki Takihara
Hiroki Takihara
Application Number:
JP2017225523A
Publication Date:
November 02, 2021
Filing Date:
November 24, 2017
Export Citation:
Assignee:
Sumitomo Rubber Industries, Ltd.
International Classes:
A63B37/00; A63B45/00
Domestic Patent References:
| JP2017108862A | ||||
| JP2015073665A | ||||
| JP2003180879A | ||||
| JP2006014939A | ||||
| JP2005168701A | ||||
| JP2010269147A | ||||
| JP2005296654A | ||||
| JP2016158873A | ||||
| JP2009213712A |
Attorney, Agent or Firm:
Patent business corporation Yuko patent office