Abstract: In bookmaking, a sheet bundle is held in a substantially vertical posture. At first an adhesive is applied to a bottom edge of the sheet bundle in a condition that the bottom edge of the sheet bundle and an adhesive application member are pressed together with a first contact pressure to apply the adhesive between the sheets. Then, the adhesive is applied to the bottom edge in a condition that the bottom edge of the sheet bundle and adhesive application member are pressed together with a second contact pressure weaker than the first contact pressure, or are in a non-contact situation.

Abstract: Bookbinding unit enabling, in encasing inner-leaf sheets in coversheets to form booklets, secure book-forming binding regardless of whether the inner-leaf sheets constitute a simple-sheet bundle or are made up of a plurality of folded-over signature sheets. Constituent components are: inner-leaf sheet tray; coversheet tray; bookbinding process path for guiding sheets from the inner-leaf sheet tray to successive adhesive-application and cover-binding locations; inner-leaf conveyor; coversheet conveyor for conveying coversheets to the cover-binding location; bundle-spine adhesive applicator in the adhesive-application location; and cover binder in the cover-binding location. Components' controller is configured to receive input as to whether inner-sheet-bundle makeup includes saddle-stitch sheets or is of simple sheets only, and, based on the bundle makeup information, varies its control of at least one of the coversheet conveyor, adhesive applicator, and cover binder.

Abstract: A bookbinding apparatus includes a collecting device, a bookbinding path, a bundle conveying device for transferring the sheet bundle to a paste applying position and then to a cover binding position, a paste applying device for applying an adhesive to a spine part of the sheet bundle, and a cover feeding path. A cover binding device binds the sheet bundle with the adhesive to the cover sheet, and a cover binding control device controls the cover binding device. The cover binding device includes a back folding press member and a back abutting plate member. The cover sheet is sandwiched between the back abutting plate member and the spine part of the sheet bundle with a small gap between the back abutting plate member and the spine part. The cover binding control device adjusts a size of the gap depending on a thickness of the cover sheet when folded back.

Abstract: In bookmaking, a sheet bundle is held in a substantially vertical posture. At first an adhesive is applied to a bottom edge of the sheet bundle in a condition that the bottom edge of the sheet bundle and an adhesive application member are pressed together with a first contact pressure to apply the adhesive between the sheets. Then, the adhesive is applied to the bottom edge in a condition that the bottom edge of the sheet bundle and adhesive application member are pressed together with a second contact pressure weaker than the first contact pressure, or are in a non-contact situation.

Abstract: A bookbinding device includes a collecting device for collecting sheets into a bundle and a bookbinding path that includes a sheet bundle conveying device, an adhesive applying device, a cover binding device, and a cover sheet feeding path. The cover binding device includes a back folding press member for the cover sheet and a back rest plate member to back up the cover sheet. A control device allows the back folding press member to execute a back folding process with a small gap formed between the back rest plate member and a back of the sheet bundle. The control device further allows the back of the sheet bundle to abut against the back rest plate member to forcibly cool the adhesive. The control device varies the time required for the cooling depending on the thickness of the sheet bundle.

Abstract: Bookbinding unit enabling, in encasing inner-leaf sheets in coversheets to form booklets, secure book-forming binding regardless of whether the inner-leaf sheets constitute a simple-sheet bundle or are made up of a plurality of folded-over signature sheets. Constituent components are: inner-leaf sheet tray; coversheet tray; bookbinding process path for guiding sheets from the inner-leaf sheet tray to successive adhesive-application and cover-binding locations; inner-leaf conveyor; coversheet conveyor for conveying coversheets to the cover-binding location; bundle-spine adhesive applicator in the adhesive-application location; and cover binder in the cover-binding location. Components' controller is configured to receive input as to whether inner-sheet-bundle makeup includes saddle-stitch sheets or is of simple sheets only, and, based on the bundle makeup information, varies its control of at least one of the coversheet conveyor, adhesive applicator, and cover binder.

Abstract: Faulty bookbinding due to sheet-size, etc. setting errors when bundle-collated inner-leaf sheets and coversheets they are bound with are placed in respective trays is stopped before it occurs. In an inner-leaf tray and a coversheet tray: (1) sheet sensors are disposed, and when both detect sheet presence, the inner-leaf sheets are transported to an adhesive-application location, and (2) sheet-side detection sensors or (3) sheet length and width detection sensors are disposed, and in either case when from the detection information predetermined encased booklet formation is impossible, device startup is halted. Width detectors are disposed in the inner-leaf and coversheet trays for detecting opposing sides of sheets stacked therein, and a controller is configured to convey into the device interior inner-leaf sheets from the inner-leaf tray when predetermined encased booklet formation is possible with the inner-leaf sheets and coversheets.

Abstract: Bookbinding unit to avert sheets coming loose and other problems that, due to adhesive leakage in coating an adhesive onto a sheaf and pasting on a cover sheet, lead to poor binding. Provided with unit housing, sheaf retainer for retaining in an adhesive-application position sheets collated into book blocks, adhesive container for storing hot-melt adhesive, heater built-in to the adhesive container for melting the adhesive at a predetermined temperature, temperature controller for controlling the heater, applicator for applying adhesive to sheaves, and cover binder disposed downstream of the adhesive-application location for binding sheaves coated with adhesive together with cover sheets. The controller has a first sensor for detecting the adhesive temperature the adhesive container, and a second sensor for detecting ambient temperature inside the unit housing, and controls the heating temperature of the heater according to the temperatures detected by the first and second sensors.

Abstract: A sheet conveyance apparatus conveys a posture corrected sheet bundle to a correct position, and includes a discharge path for conveying out a sheet, a tray device for stacking sheets conveyed from the discharge path in a bundle shape, and a gripping conveyance device for conveying the sheet bundle on the tray device to a predetermined finishing position. A finishing device finishes the sheet bundle gripped by the gripping device.

Abstract: A bookbinding apparatus includes a collecting device, a bookbinding path, a bundle conveying device for transferring the sheet bundle to a paste applying position and then to a cover binding position, a paste applying device for applying an adhesive to a spine part of the sheet bundle, and a cover feeding path. A cover binding device binds the sheet bundle with the adhesive to the cover sheet, and a cover binding control device controls the cover binding device. The cover binding device includes a back folding press member and a back abutting plate member. The cover sheet is sandwiched between the back abutting plate member and the spine part of the sheet bundle with a small gap between the back abutting plate member and the spine part. The cover binding control device adjusts a size of the gap depending on a thickness of the cover sheet when folded back.

Abstract: A bookbinding device includes a collecting device for collecting sheets into a bundle and a bookbinding path that includes a sheet bundle conveying device, an adhesive applying device, a cover binding device, and a cover sheet feeding path. The cover binding device includes a back folding press member for the cover sheet and a back rest plate member to back up the cover sheet. A control device allows the back folding press member to execute a back folding process with a small gap formed between the back rest plate member and a back of the sheet bundle. The control device further allows the back of the sheet bundle to abut against the back rest plate member to forcibly cool the adhesive. The control device varies the time required for the cooling depending on the thickness of the sheet bundle.

Abstract: A bookmaking apparatus joins sheets together to creating a booklet by securely and uniformly adhering a cover sheet to a backside edge of a sheet bundle. The apparatus includes a sheet support device for holding the sheet bundle in a substantially vertical posture, and an adhesive application device to apply adhesive to a bottom edge of the sheet bundle held by the sheet support device. The bookmaking apparatus further includes a first conveyance device for conveying at least one of the sheet support device and the adhesive application device in a direction relative to the bottom edge of the sheet bundle, and a second conveyance device for moving at least one of the sheet support device and the adhesive application device in a substantially vertical direction, in order to change a gap distance between the bottom edge of the sheet bundle and the adhesive application member.

Abstract: A sheet conveyance apparatus conveys a posture corrected sheet bundle to a correct position, and includes a discharge path for conveying out a sheet, a tray device for stacking sheets conveyed from the discharge path in a bundle shape, and a gripping conveyance device for conveying the sheet bundle on the tray device to a predetermined finishing position. A finishing device finishes the sheet bundle gripped by the gripping device.

Abstract: A sheet stacking apparatus includes a tray for sequentially stacking sheets from a discharge path. The tray including a fixed support member, a movable support member, and a drive device disposed on the moveable support member. The drive device moves the movable support member to allow the movable support device to support different sheet position according to a length of the sheet in a conveyance direction.