| abstract |
The present invention relates to a golf ball whose outer layer has a softer hardness as compared to the prior art, comprising: a golf ball including a central portion, at least two intermediate layers sequentially surrounding the central portion, and an outer layer surrounding the intermediate layer. The outer layer has a thickness of 0.8 to 1.4 mm, a hardness (unit: shore D) of 40 to 50, and the first middle layer immediately below the outer layer of the middle layer has a thickness of 1.0 to 1. 2.0 mm, hardness (unit: Shore D) is 50 to 65, and each remaining intermediate layer located directly below the first intermediate layer has a thickness of 1.3 to 15 mm, and hardness (unit: shore D) )) Is 30 to 70, the radius of the center portion is 5 to 18 mm, the hardness (unit: shore D) is 30 to 70, and the moment of inertia of the golf ball is 83 g It is characterized by the following. According to the golf ball of the present invention, the iron spin force is much superior to the conventional golf ball, but the driver's distance can achieve the equivalent performance. |