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    • 3. 发明专利
    • Baseball or softball bat, and method for manufacturing baseball or softball bat
    • BASEBALL或软件BAT,以及制造基础或软件BAT的方法
    • JP2013075105A
    • 2013-04-25
    • JP2011218049
    • 2011-09-30
    • Mizuno Corp美津濃株式会社
    • KUWABARA HIROAKI
    • A63B59/06
    • A63B59/06A63B59/50A63B2102/18A63B2209/02B29C53/58B29C70/28B29L2031/52
    • PROBLEM TO BE SOLVED: To provide a baseball or softball bat formed of a composite material that has an improved strength at a boundary portion including a joint surface of different materials, and to provide a method for manufacturing the baseball or softball bat formed of a composite material that has an improved strength at the boundary portion including the joint surface of different materials.SOLUTION: The baseball or softball bat includes a batting portion 2 formed of wood into a cylindrical shape and having a cavity 21, and a bat body 3 made of a fiber-reinforced resin. A part of the bat body is inserted in the cavity 21 of the batting portion 2, and the rest of the bat body is exposed from the batting portion 2. The bat further includes a suppressing member 9 arranged on an outer circumference of the bat body 3 exposed from the batting portion 2. The suppressing member 9 prevents change of orientation of fibers in the fiber-reinforced resin constituting the bad body 3. The suppressing member 9 is positioned so as to contact a step 23 formed between and end on the side of a grip portion 6 of the batting portion 2 and the bat body 3.
    • 要解决的问题:提供一种由复合材料形成的棒状或垒球棒,该复合材料在包括不同材料的接合面的边界部分具有改进的强度,并且提供一种制造棒球或垒球棒的方法 的复合材料,其在包括不同材料的接合表面的边界部分处具有改进的强度。 解决方案:棒球或垒球棒包括由木材形成为圆筒形并具有空腔21的捶击部分2和由纤维增强树脂制成的蝙蝠体3。 蝙蝠体的一部分插入击打部2的空腔21中,蝙蝠体的其余部分从击球部2露出。蝙蝠还包括设置在蝙蝠体的外周的抑制构件9 3。抑制构件9防止构成坏体3的纤维增强树脂中的纤维的取向的变化。抑制构件9被定位成接触形成在侧面和末端之间的台阶23 打击部分2的握持部分6和蝙蝠身体3.版权所有(C)2013,JPO&INPIT