| 摘要 |
A binding device of a file is attached to a cover configured to be bendable at the central portion in the width direction of a spine. The binding device includes a synthetic resin first main body and a synthetic resin second main body which are arranged to be openable and closable. A synthetic resin locking member having two hook portions is integrally provided with the first main body, and a metal first prong member is mounted to the first main body. A metal second prong member is mounted to the second main body. Furthermore, a synthetic resin lever member is slidably provided in the second main body.
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