Sheet-post-process apparatus

• US 20060066041A1
• Filed: 03/22/2005
• Published: 03/30/2006
• Est. Priority Date: 09/29/2004
• Status: Active Grant

• Current Assignee: Toshiba Tec Corporation (Toshiba Corporation)
• Original Assignee: Toshiba Tec Corporation (Toshiba Corporation)
• Inventors: Taki, Hiroyuki, Yamamoto, Mikio, Sugizaki, Yoshiaki, Iijima, Tomomi, Terao, Yasunobu
• Granted Patent: US 7,306,213 B2
• Time in Patent Office: Days
• US Class Current: 270/58.110
• CPC Class Codes: B65H 29/34 from supports slid from under the articles
• CPC Class Codes: B65H 29/52 Stationary guides or smoothers

Abstract

Above a processing tray, a standby tray for making sheets of paper P stand by is installed. The sheets of paper P on the standby tray are dropped, fed, and moved to the processing tray, thus the conveying path from the standby tray to the processing tray is shortened. A conveyor belt is arranged at an angle with the processing tray so that the front end side of the sheets is positioned higher than the rear end side thereof and the conveyor belt on the front end side of the sheets is projected from the processing tray. By doing this, frictional force of the conveyor belt with the sheets of paper P on the rear end side is made smaller, and frictional force with the sheets of paper P on the front end side is made larger, and the ejectability of sheets from the processing tray after ending of the post process is improved.

Claims

1. A sheet post-process apparatus comprising:

a standby tray for making sheets ejected from an image forming apparatus stand by,

a processing tray arranged under said standby tray for loading said sheets dropped and fed from said standby tray and/or said sheets ejected from said image forming apparatus not via said standby tray,

a processing mechanism for post-processing said sheets loaded on said processing tray,

a conveying mechanism for making contact with said sheets loaded on said processing tray so that frictional force with a front end side becomes larger than frictional force with a rear end side and conveying said sheets on said processing tray in a conveying direction, and

a paper ejection tray for at least loading said sheets after ending of said post process to be ejected by said conveying mechanism.

2. A sheet post-process apparatus according to claim 1, wherein said conveying mechanism is a conveyor belt making contact with a lowest sheet on said processing tray.

3. A sheet post-process apparatus according to claim 2, wherein said conveyor belt is arranged at an angle with said processing tray so that said front end side of said sheets is positioned higher than said rear end side of said sheets.

4. A sheet post-process apparatus according to claim 2, wherein said conveyor belt, on said front end side of said sheets, is projected above a support face of said sheets on said processing tray.

5. A sheet post-process apparatus according to claim 2, wherein said conveyor belt has a feed pawl for hooking said rear ends of said sheets after ending of said post process.

6. A sheet post-process apparatus according to claim 1, wherein said processing mechanism is a stapler for bundling said plurality of sheets loaded on said processing tray.

7. A sheet post-process apparatus according to claim 1, wherein said standby tray is composed of at least a pair of tray members for respectively supporting both sides of said sheets and slides and moves said tray members to drop and feed said sheets onto said processing tray.

8. A sheet post-process apparatus according to claim 1, wherein said standby tray is composed of at least a pair of tray members for respectively supporting both sides of said sheets and rotates and moves said tray members to drop and feed said sheets onto said processing tray.

9. A sheet post-process apparatus according to claim 1, wherein said paper ejection tray can load said sheets ejected from said standby tray not via said processing tray.

10. A sheet post-process apparatus comprising:

standby means for making sheets ejected from an image forming apparatus stand by,

loading means arranged under said standby means for loading said sheets dropped and fed from said standby means and/or said sheets ejected from said image forming apparatus not via said standby means,

processing means for post-processing said sheets loaded on said loading means,

conveying means for making contact with said sheets loaded on said loading means so that frictional force with a front end side becomes larger than frictional force with a rear end side and conveying said sheets on said loading means in a conveying direction, and

paper ejection means for at least loading said sheets after ending of said post process to be ejected by said conveying means.

11. A sheet post-process apparatus according to claim 10, wherein said conveying means is conveyor belt means making contact with a lowest sheet on said loading means.

12. A sheet post-process apparatus according to claim 11, wherein said conveyor belt means is arranged at an angle with said loading means so that said front end side of said sheets is positioned higher than said rear end side of said sheets.

13. A sheet post-process apparatus according to claim 11, wherein said conveyor belt means, on said front end side of said sheets, is projected above a support face of said sheets on said loading means.

14. A sheet post-process apparatus according to claim 11, wherein said conveyor belt means has a feed pawl for hooking said rear ends of said sheets after ending of said post process.

15. A sheet post-process apparatus according to claim 10, wherein said processing means is stapling means for bundling said plurality of sheets loaded on said loading means.

16. A sheet post-process apparatus according to claim 10, wherein said standby means is composed of at least a pair of tray members for respectively supporting both sides of said sheets and slides and moves said tray members to drop and feed said sheets onto said loading means.

17. A sheet post-process apparatus according to claim 10, wherein said standby means is composed of at least a pair of tray members for respectively supporting both sides of said sheets and rotates and moves said tray members to drop and feed said sheets onto said loading means.

18. A sheet post-process apparatus according to claim 10, wherein said paper ejection means can load said sheets ejected from said standby means not via said loading means.