US3603216A - Method for producing cushioning dunnage - Google Patents

Method for producing cushioning dunnage Download PDF

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Publication number
US3603216A
US3603216A US3603216DA US3603216A US 3603216 A US3603216 A US 3603216A US 3603216D A US3603216D A US 3603216DA US 3603216 A US3603216 A US 3603216A
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Prior art keywords
material
dunnage
generally
padlike
sheetlike
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George R Johnson
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Arpax Co
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Arpax Co
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING 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
    • B31DMAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D5/00Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
    • B31D5/0039Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads
    • B31D5/0043Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads including crumpling flat material
    • B31D5/0047Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads including crumpling flat material involving toothed wheels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B55/00Preserving, protecting, or purifying packages or package contents in association with packaging
    • B65B55/20Embedding contents in shock-absorbing media, e.g. plastic foam, granular material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D81/00Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/02Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D81/05Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • B65D81/051Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using pillow-like elements filled with cushioning material, e.g. elastic foam, fabric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING 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
    • B31DMAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D2205/00Multiple-step processes for making three-dimensional articles
    • B31D2205/0005Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads
    • B31D2205/0011Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads including particular additional operations
    • B31D2205/0017Providing stock material in a particular form
    • B31D2205/0023Providing stock material in a particular form as web from a roll
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING 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
    • B31DMAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D2205/00Multiple-step processes for making three-dimensional articles
    • B31D2205/0005Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads
    • B31D2205/0011Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads including particular additional operations
    • B31D2205/0047Feeding, guiding or shaping the material
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S493/00Manufacturing container or tube from paper; or other manufacturing from a sheet or web
    • Y10S493/967Dunnage, wadding, stuffing, or filling excelsior

Abstract

A method of producing resilient cushioning dunnage comprising taking at least one web of sheetlike material, such as paper, of predetermined width, rolling the lateral edges of the web generally inwardly, generally loosely crumpling the web with the rolled edges radially inwardly into a padlike configuration and then connecting together the confronting rolled lateral edge portions to maintain the dunnage article in its formed configuration.

Description

United States Patent 1 13 503316 I721 Inventor George II. Johnson 2,499,463 3/1950 Crary 93/1 WZ Chagrin Falls, Ohio 2,679,837 6/1954 Doyle 156/183 121] Appl No. 9,627 2,882,802 4/1959 Walker 93/1 WZ [22] Filed Feb.9, 1970 2,786,399 3/1951 Mason. 93/1 WZ Division ofSer. No. 703,583. Feb. 1 2,924,154 2/1960 Russell 93/1 WZ Pat. No. 3.509. 98 3,012,923 12/1961 Slayter 156/183 X 1 1 Patented pt 7.1971 3,164,069 1/1965 Wilkie 93 1 wz 173] Assignee The Arpax Company 3,255,064 6/1966 Makansl 156/183 X Chagrin Fllls, Ohio 3,276,937 10/1966 Kim .1 93 1 wz 3,383,449 5/1968 Muller 264/287 3,418f890 12/1968 Tachibana... 93/1 WZ 3,522,130 7/1970 Lundquist 156/383 541 run-moo r011 PRODUCING cusmoumc q y ExminrWayn= Mom,

DUNNAGE Attorney-Baldwin, Egan, Walling 81. Fetzer 4 Claims, 9 Drawing Figs.

[52] U.S.CI 93/1 WZ, 93/1 G, 93/1 .1, 93/1 .5, 93/8 W, 93/84 TW, 93/93 HT [51] Int. B3" 1/10, BSTR C A mmhod f r d i resfliem cushioning 1 2. B IC 13/00 nage comprising taking at least one web of sheetlike material, 1 Field 1 such as baper, of predetermined width, rolling the lateral 3 84 93 edges of the web generally inwardly, generally loosely crumpling the web with the rolled ed es radial] inward] into [56] Refennm and a padlike configuration and then conr iecting together thgcon- UNITED STATES PATENTS fronting rolled lateral edge portions to maintain the dunnage 2,106,246 1/1938 Fourness 93/1 WZ article in its formed configuration.

PATENTEU SEP 7 I971 SHEEI 1 OF 4 PATENTED SEP 7 I97\ SHEET 2 BF 4 INVENT OR.

PATENTED SEP H97; 3,603,216

SHEET 3 BF 4 PATENTEUSEP Han SHEET 0F 4 METHOD FOR PRODUCING CUSl-llONlNG DUNNAGE This is a divisional application of my copending US. Pat. application Ser. No. 703.588, filed Feb. 7. 1968 now Pat. No. 3.509.798. issued May S. l970. by George R. Johnson and entitled MECHANISM AND METHOD FOR PRODUCING CUSHIONING DUNNAGE."

This invention relates in general to methods for producing a packing material or cushioning dunnage as it is known in the art. and more particularly. dunnage-producing methods emhodying procedures for converting a continuous web of sheetlike material. such as paper. into a generally continuous. resilient, padlike dunnage product for use in packing and cushioning articles or products in shipping containers and the like. The padlike dunnage product has a relatively low density per unit volume and possesses good cushioning charac UZI'ISIICS.

BACKGROUND OF THE INVENTION Various mechanisms and methods are known in the art for producing lengths of packing material for use in packing breakable items in enclosing containers. One such mechanism is disclosed in US. Pat. No. 2.882.802, issued Apr. 21. 1959 to Charles Robert Walker and entitled CRUMPLING DEVICE." However. such prior art mechanisms and methods are either too complex for the quality of dunnage produced, or they do not produce dunnage for packing material which has suitable resiliency for giving good cushioning protection to articles disposed in shipping containers. Accordingly. the general practice has been to crumple paper material manually. with the packers crumpling the material and placing it into the containers as needed. The latter method is inefficient and time consuming. Various other types of dunnage. such as for instance plastic dunnagc, are known in the art. but these other types generally either require too much storage space or are too expensive for universal use. Various dunnage producing mechanisms and methods are also disclosed in applicants copending US. Pat. application, Ser. No. 640.145, filed May 22. i967.

SUMMARY OF THE lNVENTlON The present invention provides a novel method for effectively and efficiently producing paper dunnage. the latter having considerable resiliency for greatly improving the cushioning characteristics of the packing material or dunnage. The cushioning dunnage produced is of a padlike configuration having good resiliency and relatively low density per unit volume. The user is able to convert paper from rolls having densities of, for instance, 40 to 50 pounds per cubic foot requiring relatively little storage space. into cushioning dunnage having densities of. for instance, from l to 2 pounds per cubic foot and as needed for direct and easily handled placement into packages at a packaging station.

Accordingly an object of the invention is to provide a novel method for producing dunnage or packing material.

A further object is to provide a method of the latter type which utilizes at least one web of sheetlike material. such as paper. and forms such web of material into a padlike cushioning dunnage product of relatively low density per unit volume.

A further object of the invention is to provide a method of producing cushioning dunnage from sheet or weblike material in which the lateral edge portions of the sheetlike material are urged into generally spiral or rolled form and then the sheetlike material is drawn generally horizontally through a crumpler section of a dunnage-producing mechanism and as by means of meshed gears. which grip the crumpled rolled edged sheet of material generally centrally thereof. and stitch the rolled edge portions of such sheet material together to provide a unitary. readily handled padlike cushioning dunnage product.

A further object of the invention is to provide a novel method for producing a resilient, cushioning dunnage product of generally padlike configuration comprising rolling the edges of sheetlike material inwardly to form generally spiral portions and compressing the rolled edged sheetlike material inwardly into a generally padlike configuration and then connecting together the abutting. generally centrally disposed mating areas of the crumpled pad to maintain the padlike configuration. while preserving the resilient characteristics of the crumpled sheetlike material.

A still further object of the invention is to provide a novel method of producing a dunnage product of padlike configuration wherein such product has a relatively low density per unit volume with connecting or securing means extending lengthwise of the pad.

A still further object of the invention is to provide a method of the above-described type utilizing a plurality of sheets of paper stock material to form the dunnage product.

Other objects and advantages of the invention will be apparent from the following description taken in conjunction with the accompanying drawings wherein:

BRIEF DESCRIPTION OF DRAWlNGS FIG. 1 is a generally diagrammatic. top plan view of a mechanism operable for carrying out the method ofthe inven tion;

FIG. 2 is a side-elevational view of the mechanism illustrated in FIG. I;

FIG. 3 is a sectional view taken generally along the plane of the line 33 of FIGURE I looking in the direction of the arrows;

FlG. 4 is a fragmentary view taken generally along the plane of 44 of FIG. 2 looking in the direction of the arrows. and illustrating the pusher means which aids in rolling the edges of the sheetlike stock material into spirallike configuration prior to movement of the rolled-edged stock into the crumpling section of the mechanism;

FIG. 5 is a fragmentary generally diagrammatic top plan View of the cushioning dunnage product produced by the mechanism;

FlG. 6 is a sectional view taken generally along the plane of line 6-6 of FIG. 5 looking in the direction of the arrows;

FIG 7 is a fragmentary, perspective view illustrating the rolling of the edges of the sheetlike stock material above the pusher;

FIG. 8 is a diagrammatic end-elevational illustration of the generally spirally rolled sheet material just after it has passed the pusher means of FIG. 7;

FIG. 9 is a diagrammatic generally end-elevational. fragmentary illustration of the superimposed webs of sheetlike material with their lateral edges rolled into generally spiral form. converging into the crumpler section of the mechanism for producing the padlike construction ofdunnage product.

Referring now again to the drawings. there is illustrated a plurality of rolls l0 and 12 of sheetlike or weblike material. rotatably mounted on a support 14, for feeding of the sheetlike material lengthwise of the dunnage-producing machine. The sheetlike material may be of any suitable type, with paper, such as 30 pound Kraft paper. having been found to be satisfactory. However, it will be understood that other types of papers and other sheetlike materials may also be satisfactory. the Kraft paper having been found to provide a particularly expeditious type of cushioning dunnage product.

As can be seen. the inner roll 12 may be of a lesser width than the outer roll 10 and with the axis of the outer roll 10 being preferably disposed below the axis of the inner roll 12. The rolls l0 and 12 are preferably not freely rotatable on the support 14. but are preferably frictionally resisted in their rotation such as by means of a relatively close fitting condition between the rolls l0 and I2 and their respective spindles 15. to prevent overrunnir'ig of the rolls during operation of the mechanism.

The dunnage-producing machine comprises a crumpler section 16 into which the superimposed webs 10a and 12a of sheetlike material are drawn, with such cmmpler section comprising a funnellike portion 17, a central reducing portion [7a, and a distal end compressing portion 17b, defining a continuous passageway 18 therethrough. Funnellike portion 17 comprises a widened mouth 19 which slopes inwardly to a narrowed throat 20, so that the webs of sheetlike material are compressed radially inwardly, or crumpled inwardly into an irregular randomlike pattern, resulting in a generally rectangular-shape padlike configuration as they pass through portion 17 into the throat 20.

The lateral edges of the webs 10a and D are rolled inwardly as they commence to leave the respective roll of material, with such edges being rolled into superimposed spirallike relationship, and with such spirally rolled edges being disposed in generally confronting, practically abutting condition as they move into the mouth 19 of funnellike por tion 17 of the crumpler section. In this connection there is provided a pusher mechanism 22 positioned upstream from mouth 19 of crumpler portion 17, for pushing downwardly on the webs of material and thus urging the lateral edges of the webs into rolled form as the webs are drawn into the crumpler section.

Pusher mechanism 22 is preferably adjustably mounted on the machine so that it may be moved longitudinally of the crumpler section 16 for adjusting the position of the pusher with respect to the mouth 19. In this connection, mechanism 22 may comprise a generally horizontally projecting supporting rod 24 suitably threaded as at 24a, and mounting an elongated support plate 26 on rod 24, as by means of mounting section 260 and associated holding nuts 28. Support plate 26 may have a depending rod 30 supported therefrom, as by means of threaded end section 32 extending through a complementary opening 34 in the support plate 26. series of the openings 34 may be provided for adjusting the upstream posi tion of the pusher mechanism 22 with respect to the mouth 19 of the funnel portion [7. Rod 30 at its lower end may have a generally arcuate-shaped pusher member 36 (FIGS. 4 and 7) which is adapted to slidingly engage the top side of the inner web [2a and maintain it in engagement with the outer web a as the webs move relative to the pusher mechanism 22, and into the crumpler section 16. As best seen in FIGS. 2 and 7, pusher member 36 extends below the horizontal plane of the lower extremity of mouth 19 and below the rolled edge porlions R of the sheetlilte material. Threaded end portion 32 of rod in conjunction with nuts 37 provide for vertical adjustment of pusher 36. As can be seen in FIG. 4, the mouth 19 of :he funnellike portion 17 of the crumpler is preferably prorided with a curved guide member 40 defining at least the ower extremity of the path of movement of the superimposed webs of sheetlike material, for guiding the spirally rolled edge iortions R of the sheetlike material as they pass into the nouth l9 and toward the throat 20. Guide 40 ensures that the :dges will not inadvertently tear due to engagement with the ower corners of portion 17 of the crumpler and aids in rolling he edges of the webs of material into spiral form. As can be rest seen from FIG. '7, the rolled edge portions R of the veblike stock material commence to crumple inwardly as at L] as the flow of stock material passes the pusher mechanism 2. The crumpling occurs in a random pattern and continues s the stock material passes into funnel portion 17 and thence ito reducing portion 170 of the crumpler. Such random eformation of the stock material produces considerable void reas in the formed pad, resulting in a low density pad. The :ngth of pusher member 36 is preferably approximately equal J the internal width ofthroat 20.

Generally central portion 17a of crumpler section 16 is referably of rectangularlike configuration, which causes ompression of the webs of material into a padlike configuraon as they pass through the throat 20 and into portion 17a. ortion 170 preferably has slots 44 (FIGS. l and 2) in the pper and lower walls thereof and into which extend stitcher ieans FIG. for connecting the confronting abutting rolled- :lge portions R of the sheet material, as the latter is drawn through the crumpler section. in the embodiment illustrated, stitcher or connecting means 45 comprises loosely meshed equal size spur gears 46, 48. Gears 46 and 48 are mounted upon a respective shaft 460, 480 which in turn are rotatably mounted in bearing structure 50 secured as by means of bolts 52 to the frame 54, supporting the gearing. Lower shaft 48a may have a pulley 56 secured thereto, which in turn is operably coupled as by means of belt and pulley $8 to a geared speed-reduction unit 60, which in turn is driven by a preferably electric motor 62. It will be seen that, upon actuation of the motor 62, the pulley 56 drives the shaft 480, which in turn rotates the gear 48, thus rotating the meshed gear 46. Bearings 50 are preferably adjustably mounted as by means of elongated slots in the framework 54, for selectively varying the spacing between the pitch diameters of the meshed gears, thus providing for varying the degree of stitching provided by the stitching or connecting mechanism. As the crumpled weblike material passes into the stitching mechanism, the confronting sections of the rolled edges R thereof which have been compressed and urged together due to the funnel portion 17 and central reducing portion 170 of the crumpler section, are stitched together due to the coining action of the meshing gears, and generally centrally of the dunnage pad P, and as at 66 (FIG. 5) to securely hold the crumpled webs of sheet material together into a unitary padlike configuration having very good resiliency characteristics. After passing the stitching mechanism 45, the formed pad passes into distal end compressing portion l7b of the crumpler section prior to being emitted from the machine.

Compressing portion 17b has a downwardly sloping top wall 68 and inwardly sloping or converging sidewalls 70 which further compress the pad of dunnage material into a formed, resilient article.

A cutter mechanism 76 of any suitable type may be provided at the exit end of compressing portion 17b, for selectively cutting the produced run of dunnage pad into desired lengths. In operation, the motor 62, which operates the stitcher 45 which in turn moves the stock material through the machine, would be preferably provided with a conventional foot switch (not shown) wherein an operator could selectively control the emission of the length of padlike dunnage from the mechanism and, by means of cutter mechanism 76, could selectively cut the formed dunnage pad to the desired lengths wanted, and could then shut down the machine until further cushioning dunnage was needed.

As can be seen in FIGS. 5 and 6, the lateral rolled portions of the dunnage product P are of generally oval, pillowlike configuration, having considerable resiliency due to the superimposed rolling of the lateral edges of the webs of stock material and random crumpling of such rolled edge portions, while the central section, which is stitched as at 66, is compressed together into a fastened or held configuration, which holds the dunnage product in padlike form, while providing excellent resiliency in the product. A lZ-inch wide dunnage pad has been produced from a total paper width of inches made up of one 60-inch wide roll (e.g. roll 10) and one 40-inch wide roll (e.g. roll 12) of 30 pound Kraft paper. A piece of the dunnage pad approximately 9% feet long weighs about 1 pound and provides about 1 cubic foot of cushioning dunnage, with the latter thus having a density of about i pound per cubic foot. Other widths of pads can, of course, be produced by varying the size of the crumpler section. Varying the stock material width and/or the weight and type of paper will, of course, vary the density of the finalized pad. While the feed of stock material and orientation of the mechanism has been illustrated in the drawings as being generally horizontal, it will be understood that it could be arranged for generally vertical feeding and orientation,

From the foregoing discussion and accompanying drawings, it will be seen that the invention provides a novel method of producing cushioning dunnage of padlike configuration and wherein sheetlike material may be taken from a roll thereof and rolled at its lateral edges into spirallike form, with the rolled edge portions oriented into confronting relationship and crumpled radially inwardly into a padlike configuration, and wherein the crumpled pad is connected together generally centrally thereof resulting in a padlike dunnage product of considerable resiliency and of relatively low density per unit volume. The invention also provides a novel method of producing a dunnage product which is readily handled and which has increased resiliency over most dunnage heretofore known, and which may be formed from sheetlike material such an ordinary Kraft paper, which is storable in compact roll lorrn prior to its formation into suitable dunnage, and which may be fed directly from a dunnage-producing mechanism into containers at a packing station.

The terms and expressions which have been used are used as terms of description and not of limitation, and there is no intention in the use of such tenns and expressions of excluding any equivalents of any of the features shown or described or portions thereof, and it is recognized that various modifications are possible within the scope of the invention claimed.

WHAT IS CLAIMED IS:

1. In a method of producing low density cushioning dunnage in padlike form from sheetlike material, comprising taking at least one web of sheetlike material of predetermined width, rolling the lateral edges of the web inwardly by pushing on the web laterally with a generally transversely extending means, to cause said inward rolling of the lateral edges of the web while pulling the web lengthwise thereof, crumpling the rolled edges of the web radially inwardly into a padlike configuration of relatively low density per unit volume so that the rolled edges of the sheetlike material are disposed in generally confronting abutting condition, and then connecting the rolled and crumpled edge portions together by coining of the edge portions along the juncture thereof to form a unitary padlike dunnage product.

2. A method in accordance with claim 1 including pushing the formed dunnage product forwardly after said connecting operation and applying further radial crumpling to further compress the padlike configuration into an article of greater density.

3. A method in accordance with claim 2 including continually shearing the formed padlike article transversely thereof into selected lengths.

4. A method in accordance with claim I including the step of providing a plurality of webs of said sheetlike material, orienting the latter into generally engaged surface-to-surface superimposed relation during said lateral pushing and lengthwise pulling of the webs, and into generally tensioned engagement with one another, prior to said radial crumpling of the sheetlike material into said padlike configuration, and wherein the step of rolling the lateral edges of the webs inwardly comprises utilizing a pusher of arcuate configuration extending generally transverse of the webs and engaging the confronting webs along the generally central portion thereofv

Claims (4)

1. In a method of producing low density cushioning dunnage in padlike form from sheetlike material, comprising taking at least one web of sheetlike material of predetermined width, rolling the lateral edges of the web inwardly by pushing on the web laterally with a generally transversely extending means, to cause said inward rolling of the lateral edges of the web while pulling the web lengthwise thereof, crumpling the rolled edges of the web radially inwardly into a padlike configuration of relatively low density per unit volume so that the rolled edges of the sheetlike material are disposed in generally confronting abutting condition, and then connecting the rolled and crumpled edge portions together by coining of the edge portions along the juncture thereof to form a unitary padlike dunnage product.
2. A method in accordance with claim 1 including pushing the formed dunnage product forwardly after said connecting Operation and applying further radial crumpling to further compress the padlike configuration into an article of greater density.
3. A method in accordance with claim 2 including continually shearing the formed padlike article transversely thereof into selected lengths.
4. A method in accordance with claim 1 including the step of providing a plurality of webs of said sheetlike material, orienting the latter into generally engaged surface-to-surface superimposed relation during said lateral pushing and lengthwise pulling of the webs, and into generally tensioned engagement with one another, prior to said radial crumpling of the sheetlike material into said padlike configuration, and wherein the step of rolling the lateral edges of the webs inwardly comprises utilizing a pusher of arcuate configuration extending generally transverse of the webs and engaging the confronting webs along the generally central portion thereof.
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US3834286A (en) * 1972-10-03 1974-09-10 Paper Converting Machine Co Ply-bonding method, apparatus and product
US4026198A (en) * 1975-05-01 1977-05-31 Ranpak Corporation Cushioning dunnage mechanism, transfer cart therefor, and method
US4237776A (en) * 1978-06-02 1980-12-09 Ranpak Corporation Cushioning dunnage mechanism
US4839210A (en) * 1985-10-28 1989-06-13 Ranpak Corp. Method and mechanism for producing cushioning dunnage product
US4884999A (en) * 1988-01-04 1989-12-05 Ranpak Corp. Dunnage converter for producing narrow width cushioning pad product, conversion kit thereof, and method
US4937131A (en) * 1989-03-15 1990-06-26 Ranpak Corp. Cushioning dunnage pad with stitching perforations
US5024642A (en) * 1988-12-05 1991-06-18 Presto Products, Incorporated Rotary draw tape bag making apparatus and method
US5123889A (en) * 1990-10-05 1992-06-23 Ranpak Corporation Downsized cushioning dunnage conversion machine and cutting assemblies for use on such a machine
US5131903A (en) * 1991-03-25 1992-07-21 Sanford Levine And Sons Packaging Corp. Apparatus for crumpling and dispensing paper-like dunnage
US5211620A (en) * 1991-11-01 1993-05-18 Ranpak Corp. Edge-tension controlling device for a cushioning conversion machine
US5322477A (en) * 1990-10-05 1994-06-21 Ranpak Corp. Downsized cushioning dunnage conversion machine and packaging systems employing the same
US5387173A (en) * 1992-12-22 1995-02-07 Ranpak Corp. Fan-folded stock material for use with a cushioning conversion machine
US5593376A (en) * 1994-07-22 1997-01-14 Ranpak Corp. Cushioning conversion machine and method
US5607383A (en) * 1994-07-22 1997-03-04 Ranpak Corp. Modular cushioning conversion machine
US5637071A (en) * 1993-08-19 1997-06-10 Ranpak Corp. Dispensing table for a cushioning conversion machine
US5643167A (en) * 1994-04-01 1997-07-01 Ranpak Corp. Cushioning conversion machine for converting sheet-like material into a cushioning product
WO1997027136A1 (en) * 1996-01-22 1997-07-31 Naturembal (Societe Anonyme) Cushioning pad production machine with a system for measuring the length of the resulting pad
FR2746701A1 (en) * 1996-03-27 1997-10-03 Naturembal Sa cushioning pad making machine has incorrect rotation detection system of the motor section and length measuring product mattress.
US5674172A (en) * 1994-07-22 1997-10-07 Ranpak Corp. Cushioning conversion machine having a single feed/cut handle
US5709642A (en) * 1994-07-22 1998-01-20 Ranpak Corp. Cushioning conversion machine and method
US5713825A (en) * 1995-06-07 1998-02-03 Ranpak Corp. Cushioning conversion machine and method for converting stock material into a dunnage product having a casing and a stuffing within the casing
US5749821A (en) * 1995-07-21 1998-05-12 Ranpak Corp. Cushioning conversion system for converting paper stock into cushioning material with a staging area and a pick and place assembly
US5755656A (en) * 1995-06-07 1998-05-26 Ranpak Corp. Cushioning conversion machine and method with independent edge connecting
US5803893A (en) * 1994-07-22 1998-09-08 Ranpak Corp. Cushioning conversion machine and method
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