BALL HITTING PART, AND BAT USING THE SAME

To provide a ball hitting part capable of reducing energy loss in the ball hitting part, and improving repulsive force.SOLUTION: A ball hitting part 5 includes: a core material 7 decentered and arranged on one side in a radial direction; a first elastic body 15 having one side part 19 in the radial direction supported by the core material 7, and the other side part 21 in the radial direction facing in the radial direction to the core material 7 through a space part 23, and having relatively small elastic hysteresis; and a second elastic body 17 covering outside in the radial direction of the other side part 21 of the first elastic body 15 to form a ball hitting surface 5a, and having relatively large elastic hysteresis.SELECTED DRAWING: Figure 3 【課題】打球部でのエネルギー損失を低減し、反発力を向上することが可能な打球部を提供する。【解決手段】打球部５は、径方向の一側に偏心して配置された芯材７と、この芯材７に支持された径方向の一側部１９及び芯材７に空間部２３をもって径方向で対向する径方向の他側部２１を有し、相対的に弾性ヒステリシスが小さい第１弾性体１５と、第１弾性体１５の他側部２１の径方向の外側を覆って打球面５ａを形成し、相対的に弾性ヒステリシスが大きい第２弾性体１７とを備える。【選択図】 図３