| 摘要 |
A chucking apparatus in which a plurality of pawl bodies are provided in a radial direction of a hub body of a turntable such that said pawl bodies can move, a center hole of a disk is pressed by said pawl bodies to hold said disk, wherein said chucking apparatus comprises a resilient member for biasing said pawl bodies outward of said hub body, each of said pawl bodies includes a pawl portion which comes into contact with said disk, and a pawl-side stopper for limiting outward movement of the pawl bodies caused by said resilient member, said hub body includes a pawl opening through which said pawl portion can project outward, and a hub-side stopper which abuts against said pawl-side stopper, and a contact surface of a lower end of said pawl body with respect to a lower part is of an arc shape.
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