To provide a sheet postprocessing device obliquely bindable even in any of corners on one end side and the other end side of a sheet even if two staples of the same mechanisms are not arranged.
In a constitution for guiding fulcrum shafts 61 and 62 of a bottom of the staple 51 in the sheet width direction by being engaged with a guide passage 101 of a guide via a through-hole 120 of a moving plate 72, a force in the moving direction of the moving plate 72 for moving to the device rear side is transmitted to the staple 51 via the fulcrum shafts 61 and 62, and the staple 51 also moves together. When a guide pin 63 of the bottom of the staple 51 is engaged with a guide piece 107 in moving, while guiding the fulcrum shaft 62 to a branch passage 105, the staple 51 inclines up to an oblique binding position by rotating in the counterclockwise direction to the moving plate 72 with the fulcrum shaft 61 as a center. The device front side is also the same constitution as the device rear side, and while guiding the fulcrum shaft 61 to the branch passage of the device front side, the staple 51 inclines up to the oblique binding position by rotating in the clockwise direction with the fulcrum shaft 62 as a center.
| JP2009001422A | 2009-01-08 | |||
| JP2001031323A | 2001-02-06 | |||
| JP2011057415A | 2011-03-24 |
Kobayashi Kunito
Koji Kawabata
Koichi Kimura
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