| 摘要 |
Bookbinding unit eliminating the necessity of a user, in placing collated inner leaves onto a tray, pre-measuring the bundle thickness, and the danger of fingers getting pinched during the placement. Furnished with: inner-leaf tray; coversheet tray; gripping conveyor gripping and transporting bundles of leaf-tray sheets; coversheet conveyor feeding coversheet-tray covers and placing them in a binding location; adhesive applicator applying adhesive to bundle spine-portion endfaces; cover binder binding bundles and covers together; and controller encasing bundles in covers to form booklets. A first detector, in the inner-leaf tray, detects thickness of bundles therein, and a second detector, in the gripping conveyor, detects thickness of the gripped bundles. The controller prohibits the gripping conveyor from conveying inner leaves out from the inner-leaf tray when the thickness of a sheet bundle detected by the first detector is more than a predetermined thickness. |
| 主权项 |
1. A bookbinding unit for encasing in coversheets and forming into booklets inner-leaf sheets collated into bundles, the bookbinding unit comprising:
an inner-leaf tray on which inner-leaf sheets are set into a bundle; a cover tray on which coversheets are set; a bookbinding process path for transporting sheet bundles from said inner-leaf tray to, in order, an adhesive application location and a cover-binding location; gripping conveyance means for gripping sheet bundles from said inner-leaf tray and transferring them along said bookbinding process path; coversheet conveyance means for feeding coversheets from said cover tray and setting them into place in the cover-binding location; adhesive application means, disposed in the adhesive application location, for applying adhesive to a spine-portion endface of inner-leaf sheets; cover binding means, disposed in the cover-binding location, for binding inner-leaf sheets together with coversheets; and bookbinding operation control means for processing inner-leaf sheets with coversheets to form booklets; wherein
a first sheet bundle-thickness detection means is disposed in said inner-leaf tray, for detecting bundle thickness of a bundle of sheets stacked therein;a second sheet bundle-thickness detection means is disposed in said gripping conveyance means, for detecting thickness of a bundle of gripped inner-leaf sheets; andsaid bookbinding operation control means is configured to
prohibit the operation by said gripping conveyance means whereby sheet bundles are conveyed out from said inner-leaf tray, if the thickness of an inner-leaf sheet bundle detected by said first sheet bundle-thickness detection means is more than a predetermined thickness, andcontrol said adhesive application means and/or coversheet conveyance means based on bundle-thickness information from said second bundle-thickness detection means. |
