Patent ID: 7993223

Claim:
A bat for baseball or softball comprising: a first tube being formed from an aluminum alloy or an alloy steel and having a grip part, a taper part, an impact part, a tip part, a step part having a larger exterior diameter than an exterior diameter of said impact part and said first tube also including a stopper part having a larger exterior diameter than said exterior diameter of said step part; a cylindrical second tube being formed from titanium, a titanium alloy, a magnesium alloy or an alloy steel and having two ends which are open, and having an interior diameter which is larger than said exterior diameter of said step part of said first tube and smaller than said exterior diameter of said stopper part of said first tube; a fixing component including a body part and an insertion part, said insertion part being inserted between said first tube and said second tube, said fixing component latching said second tube to an exterior periphery of said first tube; and a crevice located between said first tube and said second tube, said crevice being formed by said second tube being attached to an exterior periphery of said impact part of said first tube, one end of said second tube being fixed between said step part of said first tube and said stopper part by an adhesive, and the other end of said second tube being fixed by said adhesive with said insertion part of said fixing component, said fixing component being inserted between said second tube and said first tube.