GOLF BALL

PROBLEM TO BE SOLVED: To provide a golf ball which achieves satisfactory distances both on shots with drivers and on shots with middle irons used by professional golfers and skilled amateurs, and which also has excellent durability to cracking when repeatedly struck.SOLUTION: The invention provides...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: NAKAJIMA RETSUJI, TABATA KAZUFUMI, HIGUCHI HIROSHI, OHIRA TAKASHI, OZAWA YUICHIRO
Format: Patent
Sprache:eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a golf ball which achieves satisfactory distances both on shots with drivers and on shots with middle irons used by professional golfers and skilled amateurs, and which also has excellent durability to cracking when repeatedly struck.SOLUTION: The invention provides a golf ball having a core and a cover of at least one layer. The core has a cross-sectional hardness which, letting (H) be a JIS-C hardness at a position 14 mm in from a surface toward a center of the core, (H) be a JIS-C hardness at a position 8 mm in from the surface toward the center of the core, (H) be a JIS-C hardness at a position 6 mm in from the surface toward the center of the core, and (H) be a JIS-C hardness at a position 4 mm in from the surface toward the center of the core, satisfies the formulas (1) H