| 摘要 |
PROBLEM TO BE SOLVED: To provide a self-priming detection mechanism in which a large actuator is not required and dispersion of a detection accuracy is not generated by a dimension tolerance or the like of a part. SOLUTION: A detection plate 20 formed with an engagement piece 21 engageable with a staple 8a fed just below a driver plate 4 is slidably provided along the driver plate and is upwardly urged in a slide direction. The detection plate 20 is downwardly slide-operated by the driver plate 4. When the detection plate 20 is raised/returned by urging force, the engagement piece 21 is engaged with the staple 8a fed just below the driver plate to inhibit the raising/returning of the detection plate 20. Thereby, it is detected that a preparation for staple binding is completed. COPYRIGHT: (C)2004,JPO
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