Bookbinding Unit, Bookbinding Method and Image-Forming System
AssigneeNisca Corporation
InventorsTakehiro Yamakawa, Hiroyuki Sorita, Jun Kondou, Katsumasa Takagi, Takeshi Harada
Life of this patent
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Abstract
Affords a bookbinding method and bookbinding unit that attach the bookmarker string when binding inner-bound sheets coated with adhesive on the spine portion to the spine portion of the coversheet. Apply adhesive to a spine portion of inner-bound sheets collated and stacked into a bundle, join that sheet bundle to a spine portion of a coversheet, and fold the coversheet over the sheet bundle. At that time, the bookmarker string is attached to the booklet simultaneously by joining the sheet bundle to the coversheet with the bookmarker string placed over the inside spine portion of the coversheet.
Claims11
A bookbinding unit furnished with a processing stage where inner-bound sheets collated into bundle form are encased in a coversheet, the bookbinding unit comprising:
- adhesive-layer formation means, disposed upstream of the processing stage, for coating a layer of adhesive onto a spine-portion endface of the inner-bound sheets;
- coversheet feeding means for feeding coversheets to the processing stage;
- bookmarker-string supplying means for feeding a bookmarker string into position onto a coversheet fed to the processing stage;
- coversheet binding means, disposed in the processing stage, for spine-creasing a coversheet to mold it onto inner-bound sheets;
- and
- control means for controlling said coversheet feeding means, said bookmarker-string supplying means, and said coversheet binding means;
- wherein said control means is configured to
- (i) supply coversheets to the processing stage,
- (ii) supply a bookmarker string onto a coversheet in the processing stage, and
- (iii) form spine creases in the coversheet after joining together the bookmarker string, the inner-bound sheets, and the coversheet.
An image forming system furnished with an image forming means for forming images onto sheets, stacking means for collating and stacking sheets from said image-forming means, and a processing stage where inner-bound sheets collated by said stacking means are encased in a coversheet, the image-forming system therein comprising:
- adhesive-layer formation means, disposed upstream of the processing stage, for coating a layer of adhesive onto a spine-portion endface of the inner-bound sheets;
- coversheet feeding means for feeding coversheets to the processing stage;
- bookmarker-string supplying means for feeding a bookmarker string into position onto a coversheet fed to the processing stage;
- coversheet binding means, disposed in the processing stage, for spine-creasing a coversheet to mold it onto inner-bound sheets;
- and
- control means for controlling said coversheet feeding means, said bookmarker-string supplying means, and said coversheet binding means;
- wherein said control means is configured to
- (iv) supply coversheets to the processing stage,
- (v) supply a bookmarker string onto a coversheet in the processing stage, and
- (vi) form spine creases in the coversheet after joining together the bookmarker string, the inner-bound sheets, and the coversheet.
A bookbinding method whereby inner-bound sheets collated into bundle form are encased in a coversheet, the method comprising:
- a step of feeding a coversheet to a predetermined coversheet binding location;
- a bookmarker-string setting step of overlaying a bookmarker string in a predetermined position onto the coversheet fed to the coversheet binding location;
- an adhesive-layer formation step of coating a layer of adhesive onto a spine-portion endface of the inner-bound sheets collated into a sheet bundle;
- and
- a coversheet encasing step of binding the inner-bound sheets together with the coversheet onto which the bookmarker string has been overlaid.
Dependencies are inferred from the claim text.