90 degree paper feed transition module

• US 5,449,165 A
• Filed: 04/26/1993
• Issued: 09/12/1995
• Est. Priority Date: 04/26/1993
• Status: Expired due to Fees

• Current Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Original Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Inventors: Naramore, Raymond A.
• Primary Examiner(s): BOLLINGER, DAVID H
• Application Number:
  US08/051,907
• Time in Patent Office: 869 Days
• Field of Search: 271/225, 271/245, 271/226, 271/248, 271/272, 271/184, 271/188
• US Class Current: 271/225
• CPC Class Codes: B65H 2301/34 Modifying, selecting, changing direction of displacement
• CPC Class Codes: B65H 2404/1112 D-shape
• CPC Class Codes: B65H 5/062 between rollers or balls

Abstract

A transition module adapted to accept copy sheet input from an input feeder short edge first and feed the copy sheets long edge first to the main paper path of a processing apparatus. The transition module includes a belt-on-belt transport to move copy sheets into the transition module from, for example, the output of a third party feeder. The sheets are fed to the belt-on-belt transport and driven against a registration edge. The belts are continuously running and provide enough drive force to move the sheets to the registration edge, but not enough to overdrive the sheets or cause buckling. Once each sheet is registered, double `D` rolls are activated for one revolution to pull the sheet from the belts and feed it to an exit nip located downstream from the `D` rolls.

Claims

1. A sheet transition module positioned with respect to a first and second device for moving sheets received from the first device to the second device, comprising:

a sheet support surface;

a non-adjustable, fixedly positioned registration edge positioned at a rear edge of said sheet support surface for registering sheets individually;

a fixedly positioned sheet transport for transporting the sheets received from the first device into said fixedly positioned registration edge; and

fixedly positioned feed rolls activated for one revolution after each sheet is registered against said registration edge in order to feed each sheet into the second device.

2. The transition module of claim 1, wherein said sheet transport is a belt-on-belt transport.

3. The transition module of claim 2, wherein said belt-on-belt transport is continuously running during the sheet transport process.

4. The transition module of claim 3, wherein feed rolls are `D` shaped.

5. The transition module of claim 4, wherein each sheet transported by said belt-on-belt transport passes between an opening between said `D` rolls when said `D` rolls are in a home position.

6. The transition module of claim 2, including at least one baffle encountered by each sheet as it is driven by said belt-on-belt transport.

7. The transition module of claim 6, wherein said at least one baffle is ramp shaped with the maximum height of the ramp being terminated by an end portion positioned downstream of a direction of transport of the sheets by said belt-on-belt transport.

8. The transition module of claim 7, wherein a sheet resting on said sheet support surface has a trail edge thereof abutting against said end portion of said ramp.

9. The transition module of claim 8, wherein one sheet is being driven out of said transition module by said `D` rolls while another sheet is simultaneously being driven into said transition module by said belt-on-belt transport.

10. The transition module of claim 1, wherein a sheet is fed into said transition module in a first direction and fed out of said transition module in a second direction orthogonal to said first direction.

11. The transition module of claim 1, wherein each sheet enters said transition module short edge first and exits said transition module long edge first.

12. The transition module of claim 1, including means for buffering sheets within said transition module.

13. The transition module of claim 12, wherein said means for buffering sheets includes at least one ramp which lifts a second sheet entering said transition module over a first sheet resting on said sheet support surface.

14. The transition module of claim 12, wherein said at least one ramp is pivotably mounted for pivoting orthogonal to the direction of movement of copy sheets coming into said transition module.

15. A copier/printer adapted to place page image information onto copy sheets fed to the copier/printer from a high speed feeder including a transition module adapted to receive copy sheets from the high speed feeder and feed the copy sheets into the copier/printer, said transition module comprising:

means for receiving copy sheets individually from the high speed feeder through a first path;

means for driving each copy sheet out of said transition module through a second path and into the copier/printer; and

wherein said transition module includes means for feeding one copy sheet into the copier/printer while simultaneously receiving a second copy sheet on top of the copy sheet being fed.

16. The copier/printer of claim 15, wherein said transition module is adapted to receive the copy sheet short edge first in said first path and drive the copy sheet into the copier/printer long edge first through said second path.

17. The copier/printer of claim 16, wherein said copy sheet being fed long edge first from said transition module is overlapped by a copy sheet coming into said transition module short edge first.

18. The copier/printer of claim 15, including means for ensuring that the copy sheet coming into said transition module is positioned above the copy sheet being fed into the copier/printer.

19. The copier/printer of claim 18, wherein said means for ensuring that the copy sheet coming into said transition module is positioned above the copy sheet being fed into the copier/printer is a ramp.

20. A sheet transition module positioned with respect to a first and second device for moving sheets received from the first device to the second device, comprising:

a sheet support surface;

a registration edge positioned at one edge of said sheet support surface for registering sheets individually;

a belt-on-belt sheet transport for transporting the sheets received from the first device into said registration edge, said belt-on-belt sheet transport including only superposed belts;

means for corrugating each sheet as it is driven by said belt-on-belt transport; and

feed rolls activated for one revolution after each sheet is registered against said registration edge in order to feed each sheet into the second device.