High speed forms buffer

• US 20040139242A1
• Filed: 01/09/2003
• Published: 07/15/2004
• Est. Priority Date: 01/09/2003
• Status: Active Grant

• Current Assignee: Entrust Corp.
• Original Assignee: Datacard Corp. (Entrust Corp.)
• Inventors: McCumber, Roger D.
• Granted Patent: US 7,059,532 B2
• Time in Patent Office: Days
• US Class Current: 710/10
• CPC Class Codes: B65H 1/22 moving in direction of plane of articles, e.g. for bodily advancement of fanned-out piles
• CPC Class Codes: B65H 2301/34112 changing leading edge
• CPC Class Codes: B65H 2301/421 Forming a pile
• CPC Class Codes: B65H 2301/4213 of a limited number of articles, e.g. buffering, forming bundles
• CPC Class Codes: B65H 2301/4219 forming a pile in which articles are offset from each other, e.g. forming stepped pile
• CPC Class Codes: B65H 2301/42194 forming a pile in which articles are offset from each other in the delivery direction
• CPC Class Codes: B65H 2301/42322 from bottom of the pile
• CPC Class Codes: B65H 2701/18263 wherein each article is offset from its neighbour in the pile
• CPC Class Codes: B65H 2701/1914 Cards, e.g. telephone, credit and identity cards
• CPC Class Codes: B65H 39/02 Associating,collating or gathering articles from several sources
• CPC Class Codes: B65H 83/02 performed on the same pile or stack

Abstract

An apparatus that stores and synchronizes printed forms that are being transferred between a high speed forms printer and a mechanism for attaching plastic cards to the forms. The apparatus is also able to buffer the forms that are in progress in the printer should the card processing system need to be shut down or paused. The apparatus creates a shingled stack of forms, with the bottommost form in the stack being fed to the attaching mechanism as needed.

Claims

1. A method of storing and synchronizing forms being transferred between a forms printer and a device for attaching personalized cards to the forms, comprising:

providing a forms buffer apparatus between the printer and the attaching device;

discharging forms from the printer into the forms buffer apparatus;

stacking the forms in the forms buffer apparatus so that a leading edge of each form is set back from the leading edge of the form immediately beneath it thereby creating a shingled stack;

moving the shingled stack toward an output to discharge the lowermost form from the shingled stack; and

moving the shingled stack back to a home position to permit reception of another form onto the top of the shingled stack.

2. The method of claim 1, comprising stacking the forms so that the leading edges of the forms in the shingled stack are set back substantially the same distance.

3. The method of claim 2, wherein the distance is about 1.3 inches.

4. The method of claim 2, comprising moving the shingled stack toward the output a predetermined distance as each new form is added to the top of the shingled stack.

5. The method of claim 4, wherein the predetermined distance is substantially equal to the set back distance.

6. An apparatus for storing and synchronizing forms that are transferred between a forms printer and a device for attaching personalized cards to the forms, comprising:

an input configured to permit reception of forms from the forms printer;

an output through which forms are discharged to the device for attaching personalized cards;

a stack area between the input and output that is configured and arranged to contain a stack of forms;

a first mechanism that is configured and arranged to transport forms from the input to the stack area; and

a second mechanism at the stack area that is configured and arranged to transport the stack of forms toward and away from the output.

7. The apparatus of claim 6, wherein the first mechanism and second mechanism are positioned relative to one another such that the stack of forms is engaged only by the second mechanism.

8. The apparatus of claim 6, wherein the first mechanism comprises input rollers associated with the input.

9. The apparatus of claim 8, further including a forms input area adjacent to and upstream of the stack area, and the first mechanism further includes a roller mechanism at the input area.

10. The apparatus of claim 9, wherein the roller mechanism comprises a driven first roller, and a second roller that is moveable toward and away from the first roller.

11. The apparatus of claim 6, wherein the second mechanism comprises a roller mechanism.

12. The apparatus of claim 10, wherein the roller mechanism comprises a pair of spaced, driven rollers and a pair of idler rollers opposite the driven rollers.

13. The apparatus of claim 12, wherein the idler rollers are biased toward the driven rollers.

14. The apparatus of claim 11, wherein the stack area includes a bottom plate upon which the stack rests, and further including a recessed area in the bottom plate adjacent to and downstream from the roller mechanism.

15. The apparatus of claim 6, further comprising a guide path between the input and the output, said guide path being defined at least in part by a bottom plate, a top plate positioned opposite to and spaced from the bottom plate, a first edge guide, and a second edge guide positioned opposite to and spaced from the first edge guide.

16. The apparatus of claim 15, wherein the first edge guide is mounted to permit adjustment thereof toward and away from the second edge guide.