US3717074A - Deadened crease - Google Patents
Deadened crease Download PDFInfo
- Publication number
- US3717074A US3717074A US00687669A US3717074DA US3717074A US 3717074 A US3717074 A US 3717074A US 00687669 A US00687669 A US 00687669A US 3717074D A US3717074D A US 3717074DA US 3717074 A US3717074 A US 3717074A
- Authority
- US
- United States
- Prior art keywords
- crease
- corrugated
- creasing
- paperboard
- area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/4266—Folding lines, score lines, crease lines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/25—Surface scoring
- B31B50/254—Surface scoring using tools mounted on belts or chains
Definitions
- the present invention relates to a deadened crease in corrugated paperboard, and particularly a crease extending transversely of the corrugations.
- the crease is formed by crushing a relatively Wide area of the corrugated along the crease, preferably between a pair of male creasing rollers, and then adding a narrower crease along the center line of tne crushed area.
- the second crease is formed by male and female creasing rollers in preferred form, and provide an offset area extending longitudinally of the crushed area at the center thereof, the paperboard folding along the edges of the offset area.
- This invention relates to an improvement in deadened crease and deals particularly with a particular form of crease and a method and apparatus for forming the same.
- Corrugated paperboard is often produced in which the 'body of the paperboard is so stiff and rigid that it is difficult to fold along conventional score lines. This is particularly true when the corrugated paperboard in question is what is commonly known as double walled corrugated board which includes two corrugated mediums sandwiched between the liner sheets. Creases of conventional form usually fold readily in one direction, and much less readily in the other. When creases of this type are used to connect the rectangular body walls of a container to their respective closure flaps, the creases are usually arranged so that the flaps will fold inwardly readily to permit the container to be closed. However, in many instances, particularly where the containers are sealed on case sealing equipment, it is necessary to fold the closure flaps outwardly during the filling operation before they are folded inwardly. Difiiculty is often experienced in do ing this.
- the actual line of fold may be anywhere throughout the width of the wide creases. In some instances, the flaps will fold along a diagonal line across the wide creases. When the flaps are folded into closed position, the actual line of fold may be SQ located that the outer closure flaps may either terminate in spaced relation or else tend to overlap.
- an effective crease may be produced in corrugated paperboard of this type by directing the paperboard through a plurality of creasing stations.
- the paperboard blanks or webs are first directed between a pair of opposed relatively wide male creasing rollers which are centered in opposed relation. These rollers tend to crush a relatively wide area of the corrugated paperboard into substantially flat form.
- the blanks or the web next pass between a pair of substantially conventional male and female creasing rollers which are centered with respect to the wide crushed areas which have previously been formed.
- the male and female creasing rollers form a second crease extending along the center of the crushed area, defining a definite line of fold.
- the corrugated board may fold in either direction along the center line of the crushed area, or along the second formed crease.
- FIG. 1 diagrammatically illustrates two pairs of creasing rollers successively engaged by the corrugated web or the corrugated blanks.
- FIG. 2 is a sectional view on an enlarged scale through a portion of the Web closely adjacent to the first creasing rollers.
- FIG. 3 is a view similar to FIG. 2 but showing the web closely adjacent to the second creasing rollers.
- FIG. 4 is an enlarged sectional view through the creased sheet.
- FIG. 5 is a view similar to FIG. 4 after the sheet has been bent along the fold lines.
- FIG. 6 is a view similar to FIG. 5 showing the sheet folded in a reverse direction.
- FIG. 1 of the drawings diagrammatically illustrates two sets of creasing rollers in tandem arrangement engaging the Web one after the other. The manner of mounting the shafts supporting the creasing roller is not shown as this structure may be varied depending upon whether the web is being creased on the corrugator, or blanks are being creased.
- FIG. 1 of the drawings indicates a pair of creasing rollers 10 and 11 mounted upon parallel shafts 12 and 13 above and below the corrugated paperboard web 14.
- both the upper creasing roller 10 and the lower creasing roller 11 are what is commonly known to the trade as male creasing rollers, being provided with a relatively wide peripheral flange 15 and 16 thereupon.
- the flanges 15 and 16 usually of equal width, and are spaced apart a distance substantially equal to the thickness of the paper forming the corrugated web.
- the web 14 comprises double face corrugated paperboard including an upper liner 17, a lower liner 19, and an intermediate corrugated medium 20, the flutes of which are adhered to the liners 17 and 19.
- the corrugated Web 14 could comprise double wall corrugated paperboard which includes an upper liner, upper corrugated medium, an intermediate liner, a lower corrugatel medium, and a lower liner, the upper and lower corrugated mediums having their flutes adhered to the liners with which they are in contact.
- the upper and lower liners are crushed against the corrugated medium, providing a relatively wide crushed area which is somewhat greater in width than the normal crease.
- a second pair of creasing rollers 21 anl 22 are mounted upon vertically spaced shafts 23 and 24 to engage the web 14 after it has been creased by the creasing rollers 10 and 11.
- the upper creasing roller 21 comprises what is known as a female creasing roller, and includes a pair of spaced peripheral flanges 25 with a groove 26 therebetween.
- the lower corrugated roller 22 comprises a male creasing roller and includes a single peripheral flange 27 encircling the roller.
- the outer peripheral surfaces 29 of the creasing roller 21 which are outwardly of the flanges 25 may taper somewhat toward their outer ends so as to relieve pressure against the web.
- the outer surfaces 30 of the male creasing roller 22 may also taper toward their ends to relieve pressure against the under surface of the web out of the actual creasing area.
- the flanges 25 are spaced apart a distance substantially greater than the width of the male creasing flange 27 so that the paperboard forming the corrugated board may be engaged by the overlapping flanges or the rollers without shearing the sheets.
- the male creasing roller 27 forces the paperboard into the groove 26 between the flanges 25, while the flanges 25 of the female roller tend to crush the corrugated board against the surfaces 30 of the roller on either side of the flange 27.
- the outer edges of the flanges 25 are spaced apart a distance somewhat less than the width of the crushed area formed by the flanges 15 and 16, and the flange 27 is centered between the flanges 25 and centered with respect to the crushed area formed by the flanges 15 and 16.
- the corrugated board After passing between the two pairs of creasing rollers, the corrugated board appears in section substantially as indicated in FIG. 4 of the drawings.
- the upper surface of the upper liner 17 is slightly offset upwardly as indicated at 31, and the lower liner 19 is correspondingly upwardly recessed as indicated at 32.
- the numerals 33 are designed to indicate the sides of the center crease formed by the creasing rollers 21 and 22.
- the numerals 34 have been applied to FIG. 4 to indicate the sides of the crushed area formed by the flanges 15 and 16. From the points 34 to the points or lines 35, the corrugated paperboard tapers in thickness and outwardly of the lines 35 the corrugated board is of full thickness.
- the corrugated board will fold along the narrowly spaced side edges 33 of the center crease much in the manner indicated in FIG. of the drawings, the portions of the paperboard between the crease lines 33 extending diagonally. It has further been found that with this type of crease, the paperboard will fold along these same lines 33 even if folded in a reversed direction as indicated in FIG. 6.
- the container flaps may be folded outwardly into a common plane for filling or during the case sealing operation.
- Many case sealing machines fold the outer two closure flaps outwardly through an angle of 90 degrees before they are folded inwardly to overlie the first folded flaps.
- the present form of crease permits such reverse folding without changing the actual location of the crease line maintaining the location of the crease when folded back in the proper direction.
- the board When the paperboard is folded along the crease lines, the board will fold along the fold lines 33 rather than along the fold lines 34 due to the separation of the plies inwardly of the fold lines 34, making the board more resistant to folding along the fold lines 34, than along the fold lines 33. It is for this reason that the fold is controlled as described.
- the container When the board is creased as disclosed, the container is deadened by crushing and by the second creasing operation. As a result, the tendency for the flaps to spring back toward alignment with the walls to which they are hinged is greatly reduced, permitting the flaps to be more readily adhered together or taped in closed position.
- a method of creasing corrugated paperboard having parallel liners and at least one corrugated medium therebetween including the steps of:
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
Abstract
THE PRESENT INVENTION RELATES TO A DEADENED CREASE IN CORRUGATED PAPERBOARD, AND PARTICULARLY A CREASE EXTENDING TRANSVERSELY OF THE CORRUGATIONS. THE CREASE IS FORMED BY CRUSHING A RELATIVELY WIDE AREA OF THE CORRUGATED ALONG THE CREASE, PREFERABLY BETWEEN A PAIR OF MALE CREASING ROLLERS, AND THEN ADDING A NORROWER CREASE ALONG THE CENTER LINER OF THE CRUSHED AREA. THE SECOND CREASE IS FORMED BY
Description
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US68766967A | 1967-12-04 | 1967-12-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3717074A true US3717074A (en) | 1973-02-20 |
Family
ID=24761328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00687669A Expired - Lifetime US3717074A (en) | 1967-12-04 | 1967-12-04 | Deadened crease |
Country Status (1)
Country | Link |
---|---|
US (1) | US3717074A (en) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0149889A2 (en) * | 1984-01-19 | 1985-07-31 | Macmillan Bloedel Limited | Multi-layered container |
WO1997001434A2 (en) * | 1995-06-26 | 1997-01-16 | Ranpak Corp. | Cushioning conversion machine and method |
US5643167A (en) * | 1994-04-01 | 1997-07-01 | Ranpak Corp. | Cushioning conversion machine for converting sheet-like material into a cushioning product |
US5704886A (en) * | 1995-06-02 | 1998-01-06 | International Paper Company | Method and apparatus for scoring paperboard package sheets |
US5840002A (en) * | 1996-03-29 | 1998-11-24 | Stone Container Corporation | Substantially rectangular-bottomed container, and apparatus and method for manufacturing same |
US5873809A (en) * | 1994-05-18 | 1999-02-23 | Easypack Limited | Packaging material making machine |
EP0973637A1 (en) * | 1997-04-11 | 2000-01-26 | United Container Machinery | Method of working paperboard blanks |
US6106452A (en) * | 1994-04-22 | 2000-08-22 | Naturembal S.A. | Machines and methods for making cushioning dunnage products by crumping paper |
EP1110709A2 (en) * | 1999-12-21 | 2001-06-27 | Daeyoung Packaging Co., Ltd. | Apparatus and method for producing corrugated-paperboard box |
US6387029B1 (en) * | 1998-10-02 | 2002-05-14 | Ranpak Corp. | Cushioning conversion machine and method with stitching assemblies |
US6446858B1 (en) | 1999-11-22 | 2002-09-10 | Tetra Laval Holdings & Finance S.A. | Packaging blank with longitudinal material weakenings |
US20070145659A1 (en) * | 2005-10-03 | 2007-06-28 | Bowe Bell + Howell Company | Apparatuses and methods for staging and processing documents for sheet processing |
US20070164496A1 (en) * | 2005-10-03 | 2007-07-19 | Bowe Bell + Howell Company | Inserting systems and methods |
EP1911708A2 (en) * | 2006-10-12 | 2008-04-16 | Bowe Bell + Howell Company | Crease roller apparatuses and methods for using same |
US20080088083A1 (en) * | 2006-10-12 | 2008-04-17 | Bowe Bell + Howell Company | Apparatuses and methods for registering sheet articles |
US20080086983A1 (en) * | 2006-10-12 | 2008-04-17 | Bowe Bell + Howell Company | Apparatuses and methods for variably opening envelopes |
US20080088076A1 (en) * | 2006-10-12 | 2008-04-17 | Bowe Bell + Howell Company | Systems and methods for maintaining the density of grouped sheet articles |
EP2228207A2 (en) | 2009-03-13 | 2010-09-15 | Karl Marbach GmbH & Co. KG | Method for manufacturing bending lines in a sheet of material and device for executing the method |
IT202200012335A1 (en) * | 2022-06-10 | 2023-12-10 | Fustellificio Vicentino S R L | BOX FOR STORAGE OF OBJECTS |
-
1967
- 1967-12-04 US US00687669A patent/US3717074A/en not_active Expired - Lifetime
Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0149889A3 (en) * | 1984-01-19 | 1986-09-17 | Macmillan Bloedel Limited | Multi-layered container |
EP0149889A2 (en) * | 1984-01-19 | 1985-07-31 | Macmillan Bloedel Limited | Multi-layered container |
US5643167A (en) * | 1994-04-01 | 1997-07-01 | Ranpak Corp. | Cushioning conversion machine for converting sheet-like material into a cushioning product |
US6106452A (en) * | 1994-04-22 | 2000-08-22 | Naturembal S.A. | Machines and methods for making cushioning dunnage products by crumping paper |
US5873809A (en) * | 1994-05-18 | 1999-02-23 | Easypack Limited | Packaging material making machine |
US5704886A (en) * | 1995-06-02 | 1998-01-06 | International Paper Company | Method and apparatus for scoring paperboard package sheets |
US5971266A (en) * | 1995-06-02 | 1999-10-26 | International Paper Company | Paperboard package, blank and method and apparatus for producing the same |
US6783489B1 (en) | 1995-06-26 | 2004-08-31 | Ranpak Corp. | Cushioning conversion machine and method |
WO1997001434A2 (en) * | 1995-06-26 | 1997-01-16 | Ranpak Corp. | Cushioning conversion machine and method |
US6019715A (en) * | 1995-06-26 | 2000-02-01 | Ranpak Corp. | Cushioning conversion machine and method |
WO1997001434A3 (en) * | 1995-06-26 | 1997-03-06 | Ranpak Corp | Cushioning conversion machine and method |
US5840002A (en) * | 1996-03-29 | 1998-11-24 | Stone Container Corporation | Substantially rectangular-bottomed container, and apparatus and method for manufacturing same |
EP0973637A4 (en) * | 1997-04-11 | 2005-09-07 | United Container Machinery | Method of working paperboard blanks |
EP0973637A1 (en) * | 1997-04-11 | 2000-01-26 | United Container Machinery | Method of working paperboard blanks |
US6387029B1 (en) * | 1998-10-02 | 2002-05-14 | Ranpak Corp. | Cushioning conversion machine and method with stitching assemblies |
US6446858B1 (en) | 1999-11-22 | 2002-09-10 | Tetra Laval Holdings & Finance S.A. | Packaging blank with longitudinal material weakenings |
EP1110709A3 (en) * | 1999-12-21 | 2002-07-10 | Daeyoung Packaging Co., Ltd. | Apparatus and method for producing corrugated-paperboard box |
EP1110709A2 (en) * | 1999-12-21 | 2001-06-27 | Daeyoung Packaging Co., Ltd. | Apparatus and method for producing corrugated-paperboard box |
US7607649B2 (en) | 2005-10-03 | 2009-10-27 | Bowe Bell + Howell Company | Apparatuses and methods for staging and processing documents for sheet processing |
US20070145659A1 (en) * | 2005-10-03 | 2007-06-28 | Bowe Bell + Howell Company | Apparatuses and methods for staging and processing documents for sheet processing |
US20070164496A1 (en) * | 2005-10-03 | 2007-07-19 | Bowe Bell + Howell Company | Inserting systems and methods |
US7637490B2 (en) | 2005-10-03 | 2009-12-29 | Bowe Bell + Howell Company | Inserting systems and methods |
EP1911708A2 (en) * | 2006-10-12 | 2008-04-16 | Bowe Bell + Howell Company | Crease roller apparatuses and methods for using same |
US20080086983A1 (en) * | 2006-10-12 | 2008-04-17 | Bowe Bell + Howell Company | Apparatuses and methods for variably opening envelopes |
US20080088076A1 (en) * | 2006-10-12 | 2008-04-17 | Bowe Bell + Howell Company | Systems and methods for maintaining the density of grouped sheet articles |
US7454882B2 (en) | 2006-10-12 | 2008-11-25 | Bowe Bell + Howell Company | Methods for variably opening envelopes |
EP1911708A3 (en) * | 2006-10-12 | 2009-03-25 | Bowe Bell + Howell Company | Crease roller apparatuses and methods for using same |
US20080088083A1 (en) * | 2006-10-12 | 2008-04-17 | Bowe Bell + Howell Company | Apparatuses and methods for registering sheet articles |
US7607653B2 (en) | 2006-10-12 | 2009-10-27 | Bowe Bell + Howell Company | Systems and methods for maintaining the density of grouped sheet articles |
US20080090713A1 (en) * | 2006-10-12 | 2008-04-17 | Bowe Bell + Howell Company | Crease roller apparatuses and methods for using same |
US7662080B2 (en) * | 2006-10-12 | 2010-02-16 | Bowe Bell & Howell | Crease roller apparatuses and methods for using same |
EP2228207A2 (en) | 2009-03-13 | 2010-09-15 | Karl Marbach GmbH & Co. KG | Method for manufacturing bending lines in a sheet of material and device for executing the method |
DE102009013117A1 (en) * | 2009-03-13 | 2010-09-23 | Karl Marbach Gmbh & Co. Kg | Method for producing bending lines in a material sheet and device for carrying out the method |
IT202200012335A1 (en) * | 2022-06-10 | 2023-12-10 | Fustellificio Vicentino S R L | BOX FOR STORAGE OF OBJECTS |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: STONE BROWN PAPER, INC., A CORP. OF DE. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CHAMPION INTERNATIONAL CORPORATION, A CORP.OF N.Y.;REEL/FRAME:004680/0410 Effective date: 19860707 |
|
AS | Assignment |
Owner name: STONE CONTAINER CORPORATION Free format text: MERGER;ASSIGNOR:STONE BROWN PAPERS, INC., A DE CORP., (MERGED INTO);REEL/FRAME:004893/0167 Effective date: 19861222 Owner name: STONE CONTAINER CORPORATION Free format text: MERGER;ASSIGNORS:STONE CONTAINER CORPORATION, A CORP. OF IL, (MERGED INTO);S.C.C. MERGER CORPORATION, A CORP. OF DE, (CHANGED TO);REEL/FRAME:004893/0153 Effective date: 19870515 |