| 摘要 |
PROBLEM TO BE SOLVED: To make a feeling of hitting a ball softer with suppressed vibration in hitting a ball.SOLUTION: A nameplate 14 is formed by superposing a surface plate part 32 and a viscoelastic body 34 made of a viscoelastic material in a thickness direction and attached to a face rear surface 16B. The viscoelastic body 34 includes a thick wall part 34A extending planarly and a thin wall part 34B extending planarly with a thickness equal to or less than a thickness of the thick wall part 34A in a circumferential position of the thick wall part 34A. When a center point O on the face rear surface 16B, which is obtained by vertically projecting a center point Of of a face surface 16 to the face rear surface 16B, is set at coordinates (0, 0) and a gravity center point G on the face rear surface 16B, which is obtained by vertically projecting a gravity center position Gh of the golf club head 10 to the face rear surface 16B, is set at coordinates (X1, Y1), X1 is included in a range of -10 mm or more and -1 mm or less, Y1 is included in a range of -10 mm or more and 0 mm or less, and the center point O and the gravity center point G on the face rear surface 16B are positioned within an outline of the thick wall part 34A. |
