| 摘要 |
A structure for a sport bat utilizing a shell having an elongated shape along a certain dimension. The shell includes a gripping surface for the user and a contact surface for propelling a ball or similar object of play. The shell further possesses a wall which forms a chamber. A first member contacts the first end portion of the elongated shell, while a second member contacts the second end portion of the elongated shell. A connector links the first and second members to one another within the chamber. A tensioning device adjusts the tension on the connector and generates a pressure on the shell at its wall along the axis or dimension of elongation of the shell.
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