Sheet-stapling apparatus that staples center-folded sheets by staple, and image-forming system using the same

摘要

A sheet-stapling apparatus mounts a center-folded booklet and staples the booklet at a fold of the booklet by a staple. The sheet-stapling apparatus has a supporting member that mounts the center-folded booklet, a pushing member that pushes the booklet to the supporting member, a stapler that penetrates the staple through the booklet and a clincher that clinches legs of the staple to bind the booklet. The pushing member has a groove that pushes the fold of the booklet and maintains the fold of the booklet at a pushing angle. The supporting member forms the space between the clincher and the booklet.

主权项

1. A sheet-stapling apparatus that mounts a center-folded booklet and staples the booklet at a fold of the booklet by a staple, the apparatus comprising:
a stapler that penetrates the staple through the booklet; a clincher that clinches legs of the staple which penetrates through the booklet; a supporting member that supports the fold of the booklet from below at a first angle of the fold of the booklet while the booklet is mounted thereon such that the fold of the booklet is convex upward; and a pushing member that, while the supporting member supports the fold of the booklet from below at the first angle of the fold of the booklet, pushes the fold of booklet from above, wherein the pushing member maintains the fold of the booklet at a second angle, which is larger than the first angle, in an operation for the stapler to make the staple penetrate through the booklet and for the clincher to clinch the legs of the staple which penetrates through the booklet, and wherein the supporting member forms a space between the clincher and the booklet.