Adhesive bonding sheet processing device and image forming device provided with the same

Patent metadata

Field	Value
Publication number	US-9346648-B2
Application number	US-201414570631-A
Country	US
Kind code	B2
Filing date	Dec 15, 2014
Priority date	Jan 27, 2014
Publication date	May 24, 2016
Grant date	May 24, 2016

Abstract

A sheet processing device conveys a paper sheet onto which an adhesive is applied, and includes a bonding member that applies adhesives onto the conveyed paper sheet at intervals in a sheet width direction; and a protruding guide that is positioned on a conveying path, downstream of the bonding member in a sheet conveying direction, and guides the paper sheet, facing an adhesive-applied surface of the paper sheet. The protruding guide is positioned between sheet width direction lines of the adhesive-applied position and includes a protruding portion protruding into the conveying path. With this configuration, it is possible to suppress the adhesive from being adhered to a device component even in a configuration in which an adhesive-applied paper sheet is moved inside the device to make a sheet jam due to the adhesion less likely to occur.

First claim

What is claimed is:

1. A sheet processing device for conveying a paper sheet onto which adhesives are applied, comprising:
a carry-in path along which the paper sheet is carried;
a bonding member applying adhesives onto the paper sheet carried along the carry-in path at intervals in a sheet width direction;
a retreat path including a conveying path branching off from the carry-in path and along which the paper sheet onto which the adhesives are applied is carried;
a deflection guide biasing the paper sheet carried along the carry-in path toward the retreat path at a point where the retreat path branches off from the carry-in path; and
a protruding guide guiding an adhesive-applied surface of the paper sheet guided by the deflection guide,
wherein the deflection guide and the protruding guide are positioned between lines of adhesive-applied positions in the sheet width direction.

2. The sheet processing device according to claim 1 , wherein a sheet guide is disposed on a rear surface side opposite to the adhesive-applied surface of the paper sheet,
a rib extending in a sheet conveying direction and guiding the rear surface side of the paper sheet, is provided to the sheet guide, and
a protruding amount of the protruding guide is larger than a height of the rib.

3. The sheet processing device according to claim 2 , wherein the protruding guide is disposed on a side facing the adhesive-applied surface of the paper sheet conveyed while the paper sheet is bent along the conveying path.

4. The sheet processing device according to claim 3 , wherein the protruding guide has a length that covers a range over which the adhesive-applied positions are moved in the sheet conveying direction.

5. The sheet processing device according to claim 1 , wherein the protruding guide includes side portions protruding outwardly to form a cut portion therebetween, and the deflection guide is arranged to enter in the cut portion to prevent a rear end of the paper sheet from going out of the conveying path.

6. The sheet processing device according to claim 1 , wherein the carry-in path extends downwardly toward the bonding member, the retreat path extends upwardly from the point where the retreat path branches off from the carry-in path above the bonding member, and the protruding guide is disposed adjacent to the deflection guide in the retreat path.

7. An image forming device comprising:
an image forming unit for forming an image onto sequentially conveyed paper sheets; and
a sheet processing device that applies predetermined processing to the paper sheets conveyed from the image forming unit,
wherein the sheet processing device has a configuration as claimed in claim 1 .

8. A sheet processing device for applying an adhesive onto a paper sheet and conveying an adhesive-applied paper sheet, comprising:
a carry-in path along which the paper sheet is carried in;
a stacker section that stores the paper sheet conveyed along the carry-in path;
a stopper section that regulates a position of the paper sheet stored in the stacker section;
a bonding member that is positioned at an entrance of the stacker section and applies the adhesive onto the paper sheet carried in along the carry-in path;
a retreat path which is a conveying path that branches off from the carry-in path and allows switchback conveyance of the adhesive-applied paper sheet;
a deflection guide that is disposed at a branching position and configured to bias the paper sheet on the conveying path toward the retreat path and prevent the adhesive-applied paper sheet to be switchback-conveyed from being carried into the carry-in path; and
a protruding guide including a guide portion that protrudes into the conveying path and guides the adhesive-applied paper sheet guided by the deflection guide,
wherein the deflection guide and protruding guide are disposed so as not to contact the adhesive-applied position of the paper sheet.

9. The sheet processing device according to claim 8 , wherein a plurality of the bonding members are arranged in the sheet width direction, and
a plurality of the deflection guides and a plurality of the protruding guides are disposed between lines of the adhesive-applied position so as to guide the paper sheet.

10. The sheet processing device according to claim 9 , wherein the protruding guide is disposed so as to surround the deflection guide in a sheet switchback-conveyance direction and the sheet width direction.

11. The sheet processing device according to claim 10 , wherein the protruding guide is provided in a cut portion of a sheet guide formed at the branching position between the carry-in path and retreat path, and
the deflection guide is positioned at the cut portion so as to be inserted into or separated from the cut portion.

12. The sheet processing device according to claim 11 , wherein a sheet presser that presses the paper sheet so as to retain a position of the paper sheet to be applied with the adhesive is provided between the bonding member and deflection guide so as to be vertically movable with respect to the paper sheet.

13. The sheet processing device according to claim 12 , wherein a part of the deflection guide is always overlapped with the sheet presser even when the sheet presser is vertically moved with respect to the paper sheet.

14. The sheet processing device according to claim 8 , wherein the bonding member includes a transfer tape having the adhesive on a tape base material, and
application of the adhesive onto the paper sheet is achieved by pressing the transfer tape onto the paper sheet.

15. A sheet processing device comprising an adhesive application device attached as a unit to a device that stores paper sheets sequentially carried into a stacker section so as to form a paper sheet bundle,
the adhesive application device being constituted by unitizing:
a carry-in path along which the paper sheet is carried in;
a bonding member that is positioned at an exit of the carry-in path and is configured to be movable between an adhesive application position at which the adhesive is applied onto the paper sheet and a separated position separated from the paper sheet so as to allow passage of the paper sheet;
a drive member that moves the bonding member between the adhesive application position and separated position;
a platen that is provided so as to face the bonding member and backs up, at the adhesive application position, the paper sheet to be applied with the adhesive and an adhesive-applied paper sheet;
an exit of the carry-in path and an entrance of a retreat path which is a conveying path for switchback conveyance of the adhesive-applied paper sheet in an opposite direction to a carry-in direction; and
a protruding guide including a guide portion that protrudes into the conveying path and guides the adhesive-applied paper sheet to the entrance of the retreat path,
wherein the adhesive application device is configured to be attachable to the stacker section.

16. The sheet processing device according to claim 15 , wherein the unit further includes therein, a deflection guide disposed adjacent to the bonding member and configured to bias the paper sheet toward the retreat path.

17. The sheet processing device according to claim 16 , wherein the unit further includes therein a sheet presser disposed adjacent to the bonding member and configured to press the paper sheet against the platen before movement of the bonding member to the adhesive application position.

18. The sheet processing device according to claim 15 , wherein the bonding memb

Assignees

• Osada Hisashi
• Takei Akira
• Fukasawa Eiji
• Nisca Corp

Inventors

• Osada Hisashi
• Takei Akira
• Fukasawa Eiji

Classifications

• B65H2301/43821

  involving binding tape · CPC title

• B65H2301/42146

  by introducing articles from above · CPC title

• B65H45/18

  Oscillating or reciprocating blade folders (carried on rotary members B65H45/16) · CPC title

• B65H2801/48

  Bookbinding · CPC title

• B65H2801/27

  Devices located downstream of office-type machines · CPC title