Not Applicable
A portion of the material in this patent document is subject to copyright protection under the copyright laws of the United States and of other countries. The owner of the copyright rights has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the United States Patent and Trademark Office publicly available file or records, but otherwise reserves all copyright rights whatsoever. The copyright owner does not hereby waive any of its rights to have this patent document maintained in secrecy, including without limitation its rights pursuant to 37 C.F.R. § 1.14.
1. Field of the Invention
This invention pertains generally to an apparatus and method for handling lazy-portrait printed documents (printing across the continuous paper web to produce paired portrait orientated pages or in “lazy-portrait narrow-end to narrow-end” formatting (LPEE)) so as to generate acceptably oriented pages that are then processed and grouped into pre-designated document sets with continuously numbered pages. More particularly, to a hinged divided or bifurcated transfer cart that permits a desired reorientation of a portion of the lazy-portrait printed documents to facilitate further processing in a correctly ordered page-sequence for document sets, wherein when LPEE head-to-head or bottom-to-bottom paired pages are printed, one half of the printed pairs must be flipped for generation of a sequential page count in each final assembled document set.
2. Description of Related Art
To fully understand the subject invention, it is deemed worthwhile to stress the difference between existing/traditional “two-up portrait” versus the current and novel subject “lazy-portrait” printing styles and the documents produced by each type of printing scheme. Existing high-speed duplex variable data printing is carried out most frequently with continuous form printers using what is termed a “two-up portrait” format on a continuous web of paper. Two portrait printed sheets are printed side-by-side (both oriented in the same exact direction. This process, the standard in the industry, produces a continuous output of pages where, for example, the first four sheets (eight pages, front and back on four, eventually separate, sheets) appear as shown in
For the current subject invention, paper is printed in a lazy-portrait narrow-end to narrow-end (LPEE) format (as seen in
The critically issue with the subject invention is that when a pair of head-to-head or bottom-to-bottom pages are printed on a continuous stream of paper, the single stream of paper with the paired images must then be separated/slitted into two separate streams of paper with one stream being flipped over to correctly orient the final pages when cut and stacked into a document set (as seen in
Again, it is noted that conventional paper transport cart systems and paper handling systems exist that can transport and process paper printed in the existing and traditional two-up portrait style (not the subject paper LPEE orientation). Future document sets have pages that are already aligned head to head, and existing finishing, cutting, and inserting equipment readily handles the orientation of the two-up portrait printed paper by slitting the two-up portrait web of paper in either first to last (1 to N) or last to first (N to 1) document page-sequencing.
Since the two-up portrait printed paper is printed narrow-end to narrow-end, there is a need to rotate/flip the stack of finished paper pages so that the document heads from both stacks (the slit stacks) of documents need to be ultimately presented and accumulated together to form a finished document set.
Various turn-bars are found on cutters for folded continuous form stacks or continuous form rolls, but the entire stream of paper is always reoriented by use of such turn-bars, completely unacceptable for the subject system/method in which only one half of the initial paper stream is required to be flipped. Prior inserters handle stacks of paper that are in printed two-up portrait format with either the head of the document or the bottom of the document printed first, in either first to last sequence order, or last to first sequence order.
An example of a currently manufactured cart for handling two up portrait paper is manufactured by Beste Bunch Co., Inc. This cart (very much a traditional dolly for moving heavy items from one location to another) is designed to receive paper coming out of a folder attached to a continuous form printer like an Oce VarioStream 7000. The existing prior art process is depicted clearly in
The prior system is an easy way to process paper on a printer, folder, cart, and cutter, either a stand-alone cutter, or a cutter attached to a mail piece inserter.
The prior dolly/cart system must simply handle a stack of two-up portrait printed paper without any special handling or stack manipulation required, since the needed document orientation automatically results from the way the printed paper exits the printer. The paper is then pulled off of the prior art dolly/cart-stack in one direction into a page cutter, either first on-first off the cart, or first on-last off the cart, depending on how the cart was loaded with the paper.
U.S. Pat. No. 6,994,005 (an apparatus for slitting, merging, and cutting a continuous paper web) describes an in-line turn-bar that is positioned after slitting and prior to merging the two streams, but this invention only positionally moves one slit lane of paper to overlap with another slit lane of paper, without turning over the obverse to reverse orientation (or face to back orientation). This patent differs from the subject invention in that, since there is no need, suggestion, or teaching to so, it does not turn over the paper orientation.
U.S. Pat. No. 6,595,465 (a turn-bar assembly for redirecting a continuous paper web) describes turning a single web of paper to reorient the travel direction and, in addition, to optionally flip the paper web from obverse to reverse (face up to face down) image orientation in this reoriented travel direction. This patent differs from the subject invention in that it reorients the paper direction, which is not associated with the manner in which a turn-bar is employed in the subject invention.
An object of the present invention is to provide a paper handling system that orients lazy-portrait narrow-end to narrow-end format printed sheets into correctly page-sequenced document sets.
Another object of the present invention is to furnish a paper handling apparatus and method that flips one of two paired lazy-portrait narrow-end to narrow-end format printed sheets to generate printed sheets that have correctly sequenced pages that are assembled into desired document sets.
A further object of the present invention is to supply a paper handling apparatus and method that produces correctly page-sequenced document sets from a continuous web of lazy-portrait narrow-end to narrow-end (LPEE) format printed sheets by slitting a continuous stream of LPEE paired sheets into two streams, flipping one of the two streams, cutting each stream, and collating the cut sheets into correctly page-sequenced document sets.
Still another object of the present invention is to disclose paper handling apparatus and method that produces correctly page-sequenced document sets from a continuous web of lazy-portrait narrow-end to narrow-end (LPEE) format printed sheets by slitting a continuous stream of LPEE paired sheets into two streams, loading each stream of slitted LPEE sheets into side-by-side receiving trays in the subject hinged and bifurcated cart, flipping one of the two streams by swinging the receiving trays into a back-to-back orientation, drawing off in the same direction from each of the receiving trays the two continuous streams of sheets, thereby flipping the orientation of one stream relative to the other, cutting each stream, and collating the cut sheets into correctly page-sequenced document sets.
Yet a further object of the present invention is to describe a document transfer cart comprising two hinged-together document receiving trays, a removable bottom support plate assembly for each tray, a top delivery roller for each tray, a hinge connecting the two trays to each another, support rack pivot means, handle means, and transport means.
Still yet another object of the present invention is to relate a document transfer cart, and method of use, comprising two side-by-side and hinged-together document receiving trays, for each tray a removable bottom support plate assembly having hinge rotational support means, a top delivery roller for each tray, a central hinge connecting the two trays to each another, support rack pivot means, handle means, and transport means.
Disclosed is an apparatus and method for correctly page-sequencing individual sheets initially printed on a continuous web of paper in a lazy-portrait narrow-end to narrow-end (LPEE) format. In LPEE format, when a pair of head-to-head or bottom-to-bottom pages are printed on a continuous stream of paper, the single stream of paper with the paired images must then be separated/slitted into two separate streams of paper with one stream being flipped over to correctly orient the final pages (to produce the correct page-sequences) when cut and stacked into a document set. The current subject invention presents an apparatus and method for accomplishing this sheet flipping process for one of the two paired document streams. The printed continuous web is split into two continuous streams of sheets by a slitter. One of the two continuous streams of sheets is then flipped by first loading both streams into the subject hinged and bifurcated cart. The subject cart comprises two hinged-together document receiving trays, a removable bottom support plate assembly for each tray (only one of which has a hinge rotational support means), a top delivery roller for each tray, a hinge connecting the two trays to each another, support rack pivot means, handle means, and transport means.
Further objects and aspects of the invention will be brought out in the following portions of the specification, wherein the detailed description is for the purpose of fully disclosing preferred embodiments of the invention without placing limitations thereon.
The invention will be more fully understood by reference to the following drawings which are for illustrative purposes only:
Referring more specifically to the drawings, for illustrative purposes the present invention is embodied in the apparatus generally shown in
The hinged and bifurcated cart system invented for handling the lazy-portrait narrow-end to narrow-end (LPEE) format printed stacks of documents is extremely innovative in that it receives the stream of document pages (actually two paired and fan-folded streams of LPEE printed sheets that are split by a slitter apparatus) from a folder either N to 1 or 1 to N document sequencing and then passes on the sheets to further post-printing equipment (normally a cutter/collator) in a dramatically different page orientation that is possible from a traditional cart that delivers a single stream of fan-folded sheets to a cutter/collator.
The side-by-side and hinged-to-one-another receiving trays of the subject cart pivot together into an approximately horizontal receiving position on a receiving rack/frame (as seen in
When the two stacks of fan-folded sheets are ready to be passed on the a cutter and collator, the two loaded receiving trays of the subject cart are then rotated 180° along a central hinge mechanism to reorient the alignment of the LPEE printed pages to one another.
Specifically, as seen in
The removable bottom support assemblies 14 and 24 usually differ slightly from one another. Assembly 14 comprises a removable bottom support plate 90. The bottom support plate 90 is releasibly mounted on support arms 91 and 92 that project out from the bottom of the tray 10 and held in place by suitable means such as the shown clips 94 (a pair on each side of the bottom support plate 90) and slots 95 (a pair in each arm 91 and 92). The bottom support plate 90 may be removed by simply sliding the plate clips 94 out of the arm slots 95. The bottom plate 90 is remounted by sliding the plate clips 94 back into the arm slots 95. Bottom support assembly 14 has a hinge rotational support means fastened to the lower side of the bottom support plate 90. The rotational support means usually comprises one or more casters/wheels 96 that aids in swiveling one tray 10 from the other tray 20 when the cart 5 is opened along the central hinge 110 to deliver the two separate streams of fan-folded sheets, one stream flipped from the printed orientation.
Bottom support assembly 24 comprises a removable bottom support plate 100. The bottom support plate 100 is releasibly mounted on support arms 101 and 102 that project out from the bottom of the tray 20 and held in place by suitable means such as the shown clips 94 (a pair on each side of the bottom support plate 100) and slots 95 (a pair in each arm 101 and 102). The bottom support plate 100 may be removed by simply sliding the plate clips 94 out of the arm slots 95. The bottom plate 100 is remounted by sliding the plate clips 94 back into the arm slots 95. Normally, the bottom support assembly 24 does not have a hinge rotational support means as seen in bottom support assembly 14 since only one tray 10 needs to rotate away while the other tray 20 remains relatively stationary on the floor (both halves may have hinge rotational support means and this is contemplated to be within the realm of this disclosure).
A central hinge 110 is provided for a pivotal connection between the two trays 10 and 20. When the cart 5 is ready to deliver the two separate fan-folded streams of documents the cart 5 is opened along the central hinge 110 that connects the two trays 10 and 20 to one another. Usually, tray 20 is stationary on the floor while tray 10 rotates away from tray 20, supported by the casters/wheels 96, and into the opened document delivery configuration seen in
Stressing
A suitable control and verification means are associated with the subject method. Those means implement the subject method by generating printed pages from input data, tracking printed pages through the slitter, subject cart flipping process, cutter, and collator, and verifying the process is functioning properly and that correctly page-sequenced document sets are created. Appropriately designed computer programs control the LPEE printing process, necessary paper transport processes, the slitting device, the cutting equipment, the collation of correctly page-sequenced document sets, and any additional post collation processes. Once familiar with the subject invention, such programming abilities are within the skill of those programmers familiar with high-speed printing techniques, requirements, and equipment.
One benefit of the subject invention is that a single paper stack handling cart (bifurcated at a hinged region), with an overall structural similarity (before operation of the hinged movement) to existing stack paper handling carts, utilize similar equipment on the printers, so no additional structural changes or investment are needed on the printers. In addition, the paper path from the subject cart is a smooth path with no tortuous bends, thereby eliminating paper breakage to the cutter. A further benefit of this invention is that this system allows printing LPEE with existing printing and folding equipment and cutting and inserting on an inserter that has been minimally modified to accommodate the LPEE paper sheet and image orientation.
Although the description above contains many details, these should not be construed as limiting the scope of the invention but as merely providing illustrations of some of the presently preferred embodiments of this invention. Therefore, it will be appreciated that the scope of the present invention fully encompasses other embodiments which may become obvious to those skilled in the art, and that the scope of the present invention is accordingly to be limited by nothing other than the appended claims, in which reference to an element in the singular is not intended to mean “one and only one” unless explicitly so stated, but rather “one or more.” All structural and functional equivalents to the elements of the above-described preferred embodiment that are known to those of ordinary skill in the art are expressly incorporated herein by reference and are intended to be encompassed by the present claims. Moreover, it is not necessary for a device or method to address each and every problem sought to be solved by the present invention, for it to be encompassed by the present claims. Furthermore, no element, component, or method step in the present disclosure is intended to be dedicated to the public regardless of whether the element, component, or method step is explicitly recited in the claims. No claim element herein is to be construed under the provisions of 35 U.S.C. 112, sixth paragraph, unless the element is expressly recited using the phrase “means for.”
This application is a continuation-in-part of copending application Ser. No. 11/708,782 filed on Feb. 21, 2007, incorporated herein by reference in its entirety, which is a continuation-in-part of copending application Ser. No. 11/492,594 filed on Jul. 25, 2006, incorporated herein by reference in its entirety. This application claims priority from U.S. provisional application Ser. No. 60/904,256 filed on Feb. 28, 2007, incorporated herein by reference in its entirety.
Number | Date | Country | |
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60904256 | Feb 2007 | US |
Number | Date | Country | |
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Parent | 11708782 | Feb 2007 | US |
Child | 12037790 | US | |
Parent | 11492594 | Jul 2006 | US |
Child | 11708782 | US |