Patent attributes
A baseball or softball bat having improved restitution characteristic and preventing degraded hitting feeling caused by vibration or impact at the time of hitting can be provided. The baseball or softball bat including a ball hitting portion, a tapered portion and a grip portion is provided with an outer circumferential member, an inner circumferential member and a non-adhesive portion. The outer circumferential member is a cylindrical member forming at least the ball hitting portion. The inner circumferential member is arranged on the inner circumferential side of the outer circumferential member. The inner circumferential member has a tip end of the inner circumferential member positioned opposite to a taper side end as an end portion on the side of the tapered portion, fixed to the outer circumferential member. The non-adhesive portion is arranged, for preventing adhesion between the outer circumferential member and an unfixed portion of the inner circumferential member other than the tip end portion of the inner circumferential member and including the taper side end, at least on a portion of a region where the unfixed portion of the inner circumferential member and the outer circumferential member are opposite to each other.
