US3640048A - Method and apparatus for a pallet load - Google Patents

Method and apparatus for a pallet load Download PDF

Info

Publication number
US3640048A
US3640048A US765302A US3640048DA US3640048A US 3640048 A US3640048 A US 3640048A US 765302 A US765302 A US 765302A US 3640048D A US3640048D A US 3640048DA US 3640048 A US3640048 A US 3640048A
Authority
US
United States
Prior art keywords
film
sheet
pallet
sleeve
load
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
Application number
US765302A
Other languages
English (en)
Inventor
Seymour Zelnick
Martin Michael Wildmoser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WELDOTORON Corp
Weldotron of Delaware Inc
Original Assignee
Weldotron Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Weldotron Corp filed Critical Weldotron Corp
Application granted granted Critical
Publication of US3640048A publication Critical patent/US3640048A/en
Anticipated expiration legal-status Critical
Assigned to WELDOTRON OF DELAWARE, INC., A DE CORP. reassignment WELDOTRON OF DELAWARE, INC., A DE CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: WELDOTRON CORPORATION, A NJ CORP.
Assigned to CONGRESS FINANCIAL CORPORATION reassignment CONGRESS FINANCIAL CORPORATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WELDOTRON OF DELAWARE, INC.
Assigned to WELDOTORON CORPORATION reassignment WELDOTORON CORPORATION RELEASE OF ASSIGNMENT Assignors: CONGRESS FINANCIAL CORPORATION
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/026—Enclosing successive articles, or quantities of material between opposed webs the webs forming a curtain
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/58—Applying two or more wrappers, e.g. in succession
    • B65B11/585—Applying two or more wrappers, e.g. in succession to stacked articles, e.g. pallettised loads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
    • B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat

Definitions

  • ABSTRACT U.S. 84 A load 0f product is ecured onto a pallet fo ing a 206/60 A sleeve of heat-shrinkable film around the pallet load with its [51] Int. Cl. ..B65b 11/10, B65b 53/02 open top extending above the pallet load and its Open bottom [58] Field of Search ..:..53/24, 26, 30, 33, 157, 159, extending below the platform of the paneL o or both of th: 53/184 206/60 214/6 top and bottom surfaces of the pallet load are covered with a sheet of heat-shrinkable film having a portion extending [56] References Cited beyond the corresponding surface. The sheet or sheets and the UNITED STATES PATENTS sleeve are shrunk and fused around the pallet load.
  • the present invention relates to a method and apparatus for fully wrapping an article. More particularly, the invention relates to a method and apparatus for providing a sleeve of plastic film tightly around an article including the entire top and/or bottom surfaces thereof.
  • the packaging of articles in thermoplastic film is well known.
  • the film is heat shrinkable, is initially sealed around the article, and is subsequently heated to shrink the film tightly about the article.
  • This initial sealed wrap may be accomplished manually, as for example, shown in U.S. Pat. No. 3,047,991, issued to M. Siegel et al., on Dec. 14, 1965.
  • U.S. Pat. application Ser. No. 706,601 by 'S. Zelnick, filed Feb. 19, 1968 there is shown a method and an apparatus for shrink-film wrapping a pallet load.
  • a load of product on a pallet is wrapped in a vertical sleeve of heat-shrinkable thermoplastic film which is subsequently shrunk so that the entire pallet load is unitized, stabilized and protected against detrimental environmental conditions.
  • the length of the vertical sleeve of film which is initially formed about the pallet load before the subsequent shrinking of the film is customarily considerably longer than the vertical height of the pallet load so as to allow sufficient film, on shrinking, for overlapping the peripheral margins of the top surface of the pallet load.
  • the film covering which leaves the top surface and/or bottom surface of the pallet load uncovered is sufficient for many applications. For some applications, however, such as, for example, outdoor storage, the top surface or the top and bottom surfaces of the pallet load or article must be covered.
  • the top surface of the pallet load may be covered by draping said pallet load with an inverted bag of heat-shrinkable film with the closedpart of said bag on top of said pallet load.
  • Theprincipal object of the present invention is to provide a new and improved method and apparatus for fully wrapping an article automatically.
  • An object of the present invention is to provide a method and apparatus for fully wrapping an article with efficiency, effectiveness and reliability.
  • An object of the present invention is to provide a method and apparatus for fully wrapping a pallet load automatically with rapidity.
  • a method of fully wrapping a pallet load covering one of the top and bottom surfaces of the pallet load with a sheet of heatshrinkable film having a portion extending beyond the one of the surfaces The pallet load is encircled with a primary sleeve of heat-shrinkable film having a portion extending beyond one of the surfaces of the pallet load. The sheet and the sleeve are fused and shrunk around the pallet load.
  • the top surface of the pallet load may be covered with a sheet of heat-shrinkable film having a portion extending beyond the top surface, the bottom surface may cover a sheet of heatshrinkable film having a portion extending away from the bottom surface.
  • Each of the sheets and the sleeve are shrunk and fused around the pallet load.
  • the top surface of the pallet load may be covered with the sheet of heat-shrinkable film.
  • the bottom surface may rest on a sheet of heat-shrinkable film having a portion extending below the platform of the pallet and the sleeve may extend below the platform of the pallet.
  • the sheets and the sleeve are compatible in respect to their fusing capability.
  • the bottom surface may rest on a sheet of heat-shrinkable film having a portion extending upward beyond the bottom surface.
  • the pallet load may comprise a plurality of layers and the surface of selected ones of the layers of the pallet load may be covered with sheets of heat-shrinkable film each having a portion extending beyond the covered surface of the corresponding layer.
  • Each of the sheets is shrunk and fused to the sleeve.
  • the pallet load may be covered by the sheet before it is encircled by the sleeve.
  • the pallet load may be encircled by the sleeve before it is covered by the sheet.
  • the surface of each of the layers of the pallet load may be, covered with a sheet of film.
  • the surface of selected ones of the layers of the pallet load may be partially covered with strips of heat-shrinkable film each having a portion extending beyond the surface of the corresponding layer. Each of the strips is fused to the sleeve during the heat shrinking operation.
  • the surface of each of the layers of the pallet load may be partially covered with a strip of film.
  • a method of providing a sleeve of plastic film tightly around an article including the entire top surface thereof and the entire bottom surface thereof comprises providing a path for the article.
  • the top surface of the article is covered with a sheet of heatshrinkable film having a portion extending beyond the top surfaces and along the sides of the article.
  • the article is placed on a sheet of heat-shrinkable film so that the bottom surface of the article covers the last-mentioned sheet and the last-mentioned sheet has a portion extending away from the bottom surface.
  • the running ends of two webs of film from respective supplies thereof on opposite sides of the path are joined.
  • the article is advanced against the curtain of film to carry the curtain' along the path, additional film is withdrawn from the supplies and a bight is formed in the curtain around the article.
  • Two spaced-apart portions of the bight of film are joined together in a vertical junction closely behind the article to form a sleeve of film about the article.
  • the sleeve is severed from the remainder of the webs to form a fresh curtain of film across the path.
  • Each of the sheets is simultaneously fused to the sleeve during the heat shrinking operation. The sleeve and the sheets are heat shrunk about the article.
  • apparatus for providing a sleeve of plastic film tightly around an article including the entire top surface thereof and the entire bottom surface thereof comprises means for conveying the article along a path.
  • a first film supply supplies a first sheet of film above the article covering and extending beyond the top surface of the article.
  • a second film supply supplies a second sheet of film below the article covering and extending beyond the bottom surface of the article.
  • Third and fourth film supplies respectively disposed on each side of the path supply third and fourth sheets of film.
  • Sealing and cutting means join the running ends of the third and fourth sheets together in a junction perpendicular to the path for forming the third and fourth sheets into a curtain extending across the path and extending above the top surface of the article and below the bottom surface of the article.
  • Joining means joins together spaced portions of the third and fourth sheets closely behind the article to form a sleeve of film around the article.
  • FIG. 1 is a top plan view of an embodiment of the apparatus of the present invention for fully wrapping a pallet load
  • FIG. 2 is a side view of the apparatus of FIG. 1;
  • FIG. 3 is a circuit diagram of an embodiment of an electrical control circuit for the apparatus of the present invention.
  • FIG. 4 is a side view of the first step of an embodiment of the method of the present invention.
  • FIG. 5 is a side view of the second step of the embodiment of the method of FIG. 4;
  • FIG. 6 is a side view of a later step of the embodiment of the method of FIGS. 3 and 4;
  • FIG. 7 is a side view of a modification of the embodiment of the method of FIGS. 4, 5 and 6;
  • FIG. 8 is a side view of another embodiment of the method of the present invention.
  • FIG. 9 is a side view of a modification of the embodiment of the method of FIG. 8;
  • FIG. 10 is a schematic view of the arrangement of the strips at the top and the bottom of an intermediate layer of the pallet load of FIG. 9;
  • FIG. 11 is a side view of another embodiment of the method of the present invention.
  • the method and apparatus of the present invention are an improvement over the method and apparatus of copending patent application Ser. No. 735,366, filed June 7, 1968, by S. Zelnick, since the method and apparatus of the present invention completely and fully covers the pallet load, whereas the method and apparatus of the copending application leaves the top and bottom surfaces of the pallet load uncovered.
  • a pallet 11 bearing a load of products such as, for example, stacked boxes 12, is wrapped in a vertical sleeve provided by a sheet or web of film l3 and another sheet or web of film 14 joined together in a vertical weld 15 on the leading face of the load and joined together in a vertical weld (not shown in the FIGS.) on the trailing face of the load to form a sleeve 16 around the pallet load (FIGS. 6, 7, 8, 9 andll).
  • a portion (not shown in the FIGS.) of the vertical sleeve 16 extends up above the top surface 17 (FIGS. 1, 2, 5, 6, 7, 8, 9 and 11) ofthe load.
  • a portion (not shown in the FIGS.) of the vertical sleeve 16 may extend down below the platform 1 1a of the pallet, if desired.
  • the pallet load 12 may be encircled by the vertical sleeve 16 of heat shrinkable film by any suitable method or apparatus.
  • suitable method and apparatus is that disclosed in said copending patent application.
  • the pallet 11 bearing load of stacked boxes 12 is carried by an open midline in feed conveyor 18 in the direction of anarrow 19.
  • a pair of sealing and clamping or sealing and cutting jaw assemblies extend vertically and are supported between an overhead, horizontal guide member and a lower horizontal guide member, and are laterally movable by suitablemeans such as, for example, chains or air cylinders, as fully disclosed in said copending patent application.
  • the loaded pallet 11 is advanced against the curtain 13, 14 of film, and carries said curtain along, unwinding film from the supply rolls 21 and 22 and between two pairs of pinch rollers 23a, 23b and 24a, 24b (FIG. 1).
  • the loaded pallet 11 continues to advance until the trailing edge of said pallet has advanced a sufficient distance beyond the jaw assemblies, so as to clear these assemblies. This position is detected by a photocell, energized by a light source, as disclosed in said pending patent application, and not shown in the FIGS.
  • the photocell actuates a relay circuit to halt the conveyor and to start the jaw assemblies moving towards each other, to close behind the loaded pallet 11 onto the bightof the web to seal and sever the two superposed webs or sheets of film 13 and 14, thus forming the vertical sleeve 16 of film about said loaded pallet, and simultaneously forming a new curtain of film between the supply rolls 21 and 22 for the next successive loaded pallet, as disclosed in said copending patent application.
  • Details of exemplary structure of the jaw assemblies are disclosed in copending patent application, Ser. No. 706,601.
  • the top surface 17 of the pallet load 12 is covered with a sheet of heat-shrinkable film having a portion extending beyond said surface.
  • a photocell or other suitable sensing device 26, 27 (FIG. 1).
  • the sensing device 26, 27 actuates film sheet supply apparatus via any suitable coupling arrangement such as, for example, as electrical circuit, as shown in FIG. 3.
  • the film sheet supply apparatus When the film sheet supply apparatus is actuated, it supplies a sheet of heat-shrinkable film 28 from its position over the top surface 17 of the pallet load 12 at the same rate of speed as that of said pallet load. The sheet 28 is thus draped over and covers the top of the pallet load 12.
  • the sheet 28 is automatically severed or cut by any suitable means such as, for example, a cutting device coupled by any suitable coupling arrangement such as, for example, an electrical circuit, as shown in FIG. 3, to said sensing device.
  • a cutting device coupled by any suitable coupling arrangement such as, for example, an electrical circuit, as shown in FIG. 3, to said sensing device.
  • the sheet 28 is unwound from a supply roll 31, which is suitably rotatably mounted over the level of the top surface 17 of the pallet load 12.
  • the sheet 28 supplied from the supply roll 31 passes between a pair of pinch or guide rollers 32a and 32b.
  • Another sheet of heat shrinkable film may be unwound from a supply roll which is suitably rotatably mounted under the conveyor 18 under the level of the platform I la of the pallet 11, if desired, to provide a sheet of film for covering the bottom surface of the pallet load 12. Since the bottom surface covering sheet may be facilely and rapidly provided manually, the bottom-mounted supply roll may be dispensed with and is not disclosed herein.
  • the length and width of the sheet 28 are so proportioned, relative to the dimensions of the pallet load 12, that said sheet fully covers the top surface 17 and also drapes down about 6 inches on each side of said pallet load (FIGS. 2, 4, 5, 6, 8, 9 and 11).
  • a cutting device 33 for example, the pallet load 12 covered at its top surface 17 with said top sheet, is moved into the vertically extending curtain 13, 14 of film, as hereinbefore described, and the vertical sleeve 16 is produced, as hereinbefore described.
  • the entire pallet load assembly is then moved into heatshrinking and fusing apparatus 34, where the portion of the sleeve 16 which extends above the top surface 17 of the pallet load is mechanically locked and fused with the top sheet 28.
  • the pallet, load is completely covered with a fully sealed, closed watertight top cover.
  • the top sheet 28 is a relatively thin film, of up to about 0.003 or 0.004 inch in thickness, said film is sufficiently flexible or pliable to drape in the desired manner.
  • considerably thicker films are utilized, however, they may be too stiff to drape in the desired manner, but may be made more pliable or flexible by the application of heat simultaneously with the supply of the sheet 28.
  • a bottom sheet of film 35 (FIGS. 2, 4, 5, 6, 8, 9 and 11) is draped over said pallet.
  • the bottom sheet 35 is compatible with the vertical sleeve film 16, and is heat-shrinkable film.
  • the bottom sheet 35 is also polyethylene.
  • the bottom sheet 35 is proportioned so that it completely covers the pallet 11 and also drapes down about 4 to 6 inches on each side of said pallet (FIGS. 2, 4, 6, 8, 9 and 11).
  • the load 12 is placed or stacked on said bottom sheet in the usual manner.
  • the pallet load 12 is then covered by the top sheet 28 and the sleeve 16 in the aforedescribed manner, or by a bag.
  • the entire pallet load assembly is moved into the heat shrinking and fusing apparatus 34, where the portion of the sleeve 16 which extends below the bottom surface of the pallet load is mechanically locked and fused with said bottom sheet.
  • the pallet load 12 is then completely sealed at top, bottom and all four sides.
  • FIGS. 4 The aforedescribed method of completely covering and sealing the pallet load 12 in which the bottom sheet 35 is first draped on the pallet ll, the top sheet 28 is then draped on said pallet load, the sleeve 16 is then wrapped around said pallet load, and said top and bottom sheets are shrunk and fused with said sleeve, which is also shrunk, is illustrated in FIGS. 4,
  • FIG. 4 the bottom sheet 35 is draped on the pallet 11.
  • the load 12 covers the bottom sheet 35 on the pallet 11.
  • the top sheet 28 is draped on the pallet load 12 positioned on the bottom sheet 35 and the sleeve 16 covers said pallet load in overlapping relation with the sides of each of said top and bottom sheets.
  • TI-Ie sides of the bottom sheet 35 may be pulled upward around the bottom layer 12a of the pallet load 12, as shown in FIG. 7, rather than hang or drape down around the pallet 11, as in the embodiment of FIGS. 4, 5 and 6.
  • the vertical sleeve 16 fuses with the bottom sheet 35 of FIG. 7 when said sleeve is shrunk.
  • each layer of the pallet load 12 is covered with a sheet of film, as shown in FIG. 8,
  • the bottom layer 12a of the pallet load 12 is covered by a sheet 36a
  • the second layer 12b is covered by a sheet 36b
  • the third layer 12c is covered by a sheet 360
  • the fourth layer 12d is covered by a sheet 36d
  • the fifth layer 12a is covered by a sheet 36e.
  • Alternate layers or selected layers of the pallet load 12 may be covered with sheets of film in a modification of the embodiment of the method of FIG. 8, as illustrated in FIG. 9.
  • FIG. 9 only the second layer 12b and the fourth layer 12d are covered by sheets 36b and 36d, respectively, besides the top layer 12f being covered by the top sheet 28.
  • the intermediate sheets of film 36a, 36b, 36c, 36d and 362 or 36b and 3611 form fusion zones along the entire height of the pallet load 12.
  • the intermediate sheets are not utilized for closure or sealing purposes, but rather to provide a monolithic honeycomb structure which improves the strength and stability of the pallet load 12 considerably.
  • the intermediate sheets of film may comprise strips of film rather than full sheets. The replacement of full intermediate sheets with intermediate strips provide strength and stability approaching those provided by the full intermediate sheets, at a lower material cost.
  • each of the intermediate sheets 36b and 36d may be an intermediate strip.
  • the first layer 12a of the pallet load 12 bears a strip of film 36a, also shown in FIG. 10
  • the second layer 12b bears a strip of film 36b, also shown in FIG. 10 and positioned perpendicularly to the strip 361;
  • the third layer 120 bears a strip of film 36c positioned perpendicularly to the strip 36b
  • the fourth layer 12d bears a strip of film 36d positioned perpendicularly to the strip 360'
  • the fifth layer 12e bears a strip of film 36c positioned perpendicularly to the strip 36d.
  • FIG. 11 illustrates another embodiment of the method of the present invention, wherein the vertical sleeve 16 is provided around the pallet load 12 before the top sheet 28 is draped over the top of said pallet load.
  • the fusing of the top and bottom sheets 28 and 35 with the sleeve 16 provided a completely sealed and fully wrapped pallet load.
  • FIG. 3 illustrates a top sheet 28 supply and cutoff control circuit for a pallet load 12.
  • the sensing device 26, 27 comprises a light source 26 and a photosensitive device or photocell 27.
  • the source 26 and photocell 27 are spaced from each other by more than the corresponding dimension of the pallet load, as shown in FIG. 1, and each is electrically connected in circuit via an amplifier 41.
  • An output relay 42 of the photocell 27 is connected in a first series circuit arrangement with the photocell amplifier 41.
  • the output relay 42 is energized, due to a decrease in the electrical resistance provided by said photocell and a corresponding increase in current through said output relay.
  • a cutoff relay 43 is connected in a second series circuit arrangement with first electrical contacts 42a of the relay 42 and first electrical contacts 440 of a lock relay 44.
  • a lock relay 44 is connected in a third series circuit arrangement with a limit switch 45 and the parallel connection of second electrical contacts 42b of the relay 42 and second electrical contacts 44b of the relay 44.
  • a sheet film feed motor 46 is connected in a fourth series circuit arrangement with third electrical contacts 420 of the relay 42.
  • a cutoff solenoid 47 of the cutting device 33 (FIG. 2) is connected in a fifth series circuit arrangement with first electrical contacts 43a of the cutoff relay 43.
  • the first, second, third, fourth and fifth series circuit arrangements are connected in parallel across an AC voltage source 48.
  • the AC voltage source 48 may provide, for example, 1 l0 volts at 60 cycles per second.
  • the return of the light beam energizes the cutoff relay 43 by deenergizing the output relay 42 and thereby closing the energizing circuit of said cutoff relay.
  • the cutoff relay 43 When the cutoff relay 43 is energized, it closes its contacts 43a, thereby closing the energizing circuit of the cutoff solenoid 47 and energizing said cutoff solenoid.
  • said device At the termination of the cutting stroke of the cutting device 33, actuated by the v cutoff solenoid 47, said device closes a circuit which energizes a relay (not shown in the FIGS.) to open the limit switch 45.
  • the covering for the top and side of the pallet load may be in the form of an inverted bag which is draped over the load whereby the closed end of the bag constitutes the cover for the top of the load, the lower end of the inverted bag being fused to the sheet of film which is under the load as above described.
  • the side of the bag may be considered as a sleeve with which the part of the film on top of the load is integral.
  • a method of wrapping a pallet load comprising the steps of covering the top surface of the pallet load with a sheet of heat-shrinkable film having a portion extending beyond said top surface so as to provide a marginal edge portion adapted to encircle an upper part of the load; encircling the pallet load with a primary sleeve of heat-shrinkable film initially separate from said first-mentioned sheet having a portion extending downwardly beyond the bottom surface of the pallet load; shrinking said sleeve around said pallet load and fusing said marginal edge of said sheet and said sleeve to each other, said method further comprising placing a second sheet of heatshrinkable film on the pallet before the load is placed on the pallet, and fusing said sleeve to said second sheet.
  • a method of wrapping a pallet load comprising the steps of covering the top surface of the pallet load with a sheet of heat-shrinkable film having a portion extending beyond said top surface so as to provide a marginal edge portion adapted to encircle an upper part of the load; encircling the pallet load with a primary sleeve of heat-shrinkable film initially separate from said first-mentioned sheet having a portion extending downwardly beyond the bottom surface of the pallet load; shrinking said sleeve around said pallet load and fusing said marginal edge of said sheet and said sleeve to each other, said method being further characterized in that the pallet load is arranged in a plurality of layers on the pallet, and further comprising the steps of covering the surface of selected ones of the layers of the pallet load with sheets of heat-shrinkable film each having a portion extending beyond the covered surface of the corresponding layers, and shrinking and fusing each of said sheets to said sleeve.
  • a methodas claimed in claim 3 comprising disposing strips of film between selected layers of the load with strip of the film each having a portion extending beyond the surface of the corresponding layer, and fusing each of said strips to the sleeve.
  • a method as claimed in claim further comprising partially covering the surface of each of the layers of the pallet load with a strip of film.
  • a method of wrapping a pallet load comprising the steps of covering the top surface of the pallet load with a sheet of heat-shrinkable film having a portion extending beyond said top surface so as to provide a marginal edge portion adapted to encircle an upper part of the load; encircling the pallet load with a primary sleeve of heat-shrinkable film initially separate from said first-mentioned sheet having a portion extending downwardly beyond the bottom surface of the pallet load; shrinking said sleeve around said pallet load and fusing said marginal edge of said sheet and said sleeve to each other, said method being further characterized in that the pallet load is encircled by the sleeve before it is covered by the sheet.
  • Apparatus for providing a sleeve of plastic film tightly around an article including the entire top surface thereof and the peripheral surface thereof, said apparatus comprising means for conveying the article along a path; first film supply means for supplyin a first sheet of film above the article covering and exten mg beyond the top surface of said article;
  • second and third film supply means respectively disposed on each side of the path for supplying second and third sheets of film; sealing and cutting means for joining the running ends of said second and third sheets together in a junction perpendicular to the path for forming said second and third sheets into a curtain extending across said path and extending above the top surface of the article and below the bottom surface of said article; joining means for joining together space portions of the second and third sheets closely behind the article to form a sleeve of film around said article; and means for fusing said first sheet with the sleeve.
  • a method of wrapping a pallet load comprising the steps of first covering the upper surface of the pallet with a sheet of thermoplastic film, with a peripheral marginal edge portion of said sheet of film extending outwardly beyond the peripheral edge of the pallet, disposing the load on said sheet on the pallet, encircling the load and the pallet with thermoplastic film, and shrinking said encircling film around the load and the pallet and fusing it to the peripheral marginal edge portion of said sheet of film.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Pallets (AREA)
US765302A 1968-10-07 1968-10-07 Method and apparatus for a pallet load Expired - Lifetime US3640048A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76530268A 1968-10-07 1968-10-07

Publications (1)

Publication Number Publication Date
US3640048A true US3640048A (en) 1972-02-08

Family

ID=25073182

Family Applications (1)

Application Number Title Priority Date Filing Date
US765302A Expired - Lifetime US3640048A (en) 1968-10-07 1968-10-07 Method and apparatus for a pallet load

Country Status (4)

Country Link
US (1) US3640048A (enExample)
JP (1) JPS5016710B1 (enExample)
DE (1) DE1949047A1 (enExample)
GB (1) GB1274727A (enExample)

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3788462A (en) * 1971-02-25 1974-01-29 Owens Illinois Inc Unitized palletless load
US3805473A (en) * 1971-03-25 1974-04-23 E Lidgard Packaging methods and structures
US3807126A (en) * 1970-06-10 1974-04-30 Schwartz F Gmbh Ind Und Maschi Wrapping and securing loads on pallets
DE2413807A1 (de) * 1973-04-04 1974-10-17 Lantech Inc Verfahren und vorrichtung zur herstellung von packungen mittels eines um das packgut herumgelegten bandes
US3893279A (en) * 1972-01-05 1975-07-08 Arenco Jm Ab Method of packaging load units in weldable plastic foil
US3897671A (en) * 1973-08-31 1975-08-05 Comptex Apparatus and method for covering a load on a pallet
US3995410A (en) * 1971-06-15 1976-12-07 Berghgracht Marius Leopold Hyp Package forming apparatus
US4050221A (en) * 1973-04-04 1977-09-27 Lantech, Inc. Stretch-wrapped package, process and apparatus
DE2614558A1 (de) * 1976-04-03 1977-10-13 Moellers E Fa Verfahren und vorrichtung zur herstellung palettenloser kollis
US4244471A (en) * 1979-04-09 1981-01-13 Whirlpool Corporation Packaging system
US4250687A (en) * 1977-05-04 1981-02-17 Schott-Ruhrglas Gmbh Packaged tubes or rods
US4317322A (en) * 1980-05-20 1982-03-02 Lantech, Inc. Rotatable film wrapping apparatus with wrap carrying mechanism
US4434603A (en) 1981-05-21 1984-03-06 Bernhard Beumer Maschinenfabrik Kg Plant for producing palletless stacks of piece goods, particularly sacks around which is shrunk a sheet
US4450668A (en) * 1981-06-04 1984-05-29 Dario Manuli S.P.A. Automatic packaging machine
US4467916A (en) * 1982-04-26 1984-08-28 Ppg Industries, Inc. Tubular glass fiber package and method
US4535587A (en) * 1979-07-09 1985-08-20 Isover Saint-Gobain Multi-roll package of compressible materials
US4546880A (en) * 1983-06-02 1985-10-15 Ppg Industries, Inc. Shippable package of glass fiber strands and process for making the package and continuous strand mat
US4549388A (en) * 1983-09-13 1985-10-29 Lantech, Inc. Package sealing apparatus
AT387758B (de) * 1984-11-30 1989-03-10 Reker Adolf Maschf Vorrichtung zum verpacken eines insbesondere von einer palette gehalterten gutstapels mittels einerschrumpffolie
US4936080A (en) * 1988-04-06 1990-06-26 Oy M. Haloila Ab Device and method for spreading of a top wrapping film
US5007538A (en) * 1987-03-04 1991-04-16 Appleton Papers Inc. Interleaved spiral wrapping of foam product and stretch film for packaging carbonless paper rolls
US5114012A (en) * 1987-03-04 1992-05-19 Wta Inc. Interleaved spiral wrapping of foam product and stretch film for packaging carbonless paper rolls
US5125210A (en) * 1987-06-10 1992-06-30 Autefa Mashinen Fabrik Gmbh Procedure and device for the wrapping os compressed bales
US5636496A (en) * 1994-08-01 1997-06-10 Oy M. Haloila Ab Procedure and apparatus for winding a wrapper around a piece of goods, and package
WO2000053498A1 (en) * 1999-03-11 2000-09-14 Seelen A/S A top film applicator and a method of applying top film onto a cargo
US20030182900A1 (en) * 1998-09-10 2003-10-02 Bowden Lisa A. System and method for providing a regulated atmosphere for packaging perishable goods
US20070220830A1 (en) * 2006-03-27 2007-09-27 Macleod Richard F J Methods and apparatus for preserving pallet units of fresh perishables in modified atmosphere-containing bags
US20080216450A1 (en) * 2006-03-27 2008-09-11 Transfresh Corporation Methods and apparatus for preserving pallet units of fresh perishables in modified atmosphere-containing bags
US20100236192A1 (en) * 2004-11-03 2010-09-23 Cousins Neil G Stretch wrap machine with top corner film transfer
US20110023419A1 (en) * 2009-08-03 2011-02-03 Lancaster Iii Patrick R Methods and apparatuses for loading and unloading by pallet truck
US20120096814A1 (en) * 2009-05-12 2012-04-26 Reiner Hannen Method and apparatus for packaging an object in film
US8256190B2 (en) 1998-09-10 2012-09-04 The Bowden Group System and method for providing a regulated atmosphere for packaging perishable goods
US20130014476A1 (en) * 2011-05-13 2013-01-17 Stork Brian R High speed vertical film wrapping and sealing machine
US20140157724A1 (en) * 2012-12-06 2014-06-12 Reiner Hannen Method and apparatus for wrapping a film around an object
US8783002B2 (en) 1998-09-10 2014-07-22 The Bowden Group Method for providing a regulated atmosphere for packaging perishable goods
US20140215968A1 (en) * 2008-05-28 2014-08-07 Lantech.Com, Llc Film Clamp And Related Methods And Apparatuses For Wrapping Loads
US20140373483A1 (en) * 2013-06-19 2014-12-25 Frank Michels Packaging method and apparatus
US20160029563A1 (en) * 2013-03-15 2016-02-04 Groupe Anderson Inc. Wrapping device and method of operation thereof
EP3431399A1 (de) * 2017-07-21 2019-01-23 Schwucht, Valerio Vorrichtung und verfahren zum verpacken gestapelter länglicher gegenstände sowie verwendung einer derartigen vorrichtung
US10793332B2 (en) * 2014-09-29 2020-10-06 Ysn Imports, Inc. System and method for palletless shipment of gas cylinder arrays
US20230020790A1 (en) * 2021-07-19 2023-01-19 Belco Packaging Systems, Inc. Vertical sealer apparatus and methods of vertically sealing

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52127625U (enExample) * 1976-03-26 1977-09-28
DE3105924C1 (de) * 1981-02-18 1983-05-19 Hans Hugo 4020 Mettmann Büttner Maschine zum Anbringen haubenförmiger Folienabdeckungen an Packstücken
SE451702B (sv) * 1985-04-11 1987-10-26 Cyklop Ab Sett och anordning for att vid emballering tecka gods med en toppfilm
DE3835034A1 (de) * 1988-10-14 1990-04-19 Tente Rollen Gmbh & Co Laufrolle
FR2681311B1 (fr) * 1991-09-17 1993-12-10 Philippe Fandard Procede pour conditionner une charge palettisable et installation pour la mise en óoeuvre de ce procede.
DE202009003938U1 (de) 2009-03-23 2009-06-25 Skidata Ag Durchgangskontrollvorrichtung
JP2015129016A (ja) * 2013-12-02 2015-07-16 日本電気硝子株式会社 ガラス管集積物梱包体
DE102014007733A1 (de) * 2014-05-28 2015-12-03 Sandler Ag Palettenfreie Verpackung für Produktstapel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3403780A (en) * 1967-06-15 1968-10-01 Du Pont Stacked tray palletized package for rolls
US3479788A (en) * 1961-07-24 1969-11-25 Grace W R & Co Packaging
US3495375A (en) * 1967-04-20 1970-02-17 Anchor Hocking Corp Stabilizing unit loads using tensioned film
US3508375A (en) * 1968-07-25 1970-04-28 Larry L Kaufman Co Method and apparatus for covering a load on a pallet
US3514920A (en) * 1968-04-17 1970-06-02 Reynolds Metals Co Apparatus for overwrapping a package

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3479788A (en) * 1961-07-24 1969-11-25 Grace W R & Co Packaging
US3495375A (en) * 1967-04-20 1970-02-17 Anchor Hocking Corp Stabilizing unit loads using tensioned film
US3403780A (en) * 1967-06-15 1968-10-01 Du Pont Stacked tray palletized package for rolls
US3514920A (en) * 1968-04-17 1970-06-02 Reynolds Metals Co Apparatus for overwrapping a package
US3508375A (en) * 1968-07-25 1970-04-28 Larry L Kaufman Co Method and apparatus for covering a load on a pallet

Cited By (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3807126A (en) * 1970-06-10 1974-04-30 Schwartz F Gmbh Ind Und Maschi Wrapping and securing loads on pallets
US3788462A (en) * 1971-02-25 1974-01-29 Owens Illinois Inc Unitized palletless load
US3805473A (en) * 1971-03-25 1974-04-23 E Lidgard Packaging methods and structures
US3995410A (en) * 1971-06-15 1976-12-07 Berghgracht Marius Leopold Hyp Package forming apparatus
US3893279A (en) * 1972-01-05 1975-07-08 Arenco Jm Ab Method of packaging load units in weldable plastic foil
US4050221A (en) * 1973-04-04 1977-09-27 Lantech, Inc. Stretch-wrapped package, process and apparatus
DE2413807A1 (de) * 1973-04-04 1974-10-17 Lantech Inc Verfahren und vorrichtung zur herstellung von packungen mittels eines um das packgut herumgelegten bandes
US3867806A (en) * 1973-04-04 1975-02-25 Lantech Inc Process of making a stretched-wrapped package
US3897671A (en) * 1973-08-31 1975-08-05 Comptex Apparatus and method for covering a load on a pallet
DE2614558A1 (de) * 1976-04-03 1977-10-13 Moellers E Fa Verfahren und vorrichtung zur herstellung palettenloser kollis
US4250687A (en) * 1977-05-04 1981-02-17 Schott-Ruhrglas Gmbh Packaged tubes or rods
US4244471A (en) * 1979-04-09 1981-01-13 Whirlpool Corporation Packaging system
US4535587A (en) * 1979-07-09 1985-08-20 Isover Saint-Gobain Multi-roll package of compressible materials
US4317322A (en) * 1980-05-20 1982-03-02 Lantech, Inc. Rotatable film wrapping apparatus with wrap carrying mechanism
US4434603A (en) 1981-05-21 1984-03-06 Bernhard Beumer Maschinenfabrik Kg Plant for producing palletless stacks of piece goods, particularly sacks around which is shrunk a sheet
US4450668A (en) * 1981-06-04 1984-05-29 Dario Manuli S.P.A. Automatic packaging machine
US4467916A (en) * 1982-04-26 1984-08-28 Ppg Industries, Inc. Tubular glass fiber package and method
US4546880A (en) * 1983-06-02 1985-10-15 Ppg Industries, Inc. Shippable package of glass fiber strands and process for making the package and continuous strand mat
US4549388A (en) * 1983-09-13 1985-10-29 Lantech, Inc. Package sealing apparatus
AT387758B (de) * 1984-11-30 1989-03-10 Reker Adolf Maschf Vorrichtung zum verpacken eines insbesondere von einer palette gehalterten gutstapels mittels einerschrumpffolie
US5114012A (en) * 1987-03-04 1992-05-19 Wta Inc. Interleaved spiral wrapping of foam product and stretch film for packaging carbonless paper rolls
US5007538A (en) * 1987-03-04 1991-04-16 Appleton Papers Inc. Interleaved spiral wrapping of foam product and stretch film for packaging carbonless paper rolls
US5125210A (en) * 1987-06-10 1992-06-30 Autefa Mashinen Fabrik Gmbh Procedure and device for the wrapping os compressed bales
US4936080A (en) * 1988-04-06 1990-06-26 Oy M. Haloila Ab Device and method for spreading of a top wrapping film
US5636496A (en) * 1994-08-01 1997-06-10 Oy M. Haloila Ab Procedure and apparatus for winding a wrapper around a piece of goods, and package
US8256190B2 (en) 1998-09-10 2012-09-04 The Bowden Group System and method for providing a regulated atmosphere for packaging perishable goods
US20030182900A1 (en) * 1998-09-10 2003-10-02 Bowden Lisa A. System and method for providing a regulated atmosphere for packaging perishable goods
US8783002B2 (en) 1998-09-10 2014-07-22 The Bowden Group Method for providing a regulated atmosphere for packaging perishable goods
US8683776B2 (en) * 1998-09-10 2014-04-01 The Bowden Group Method for providing a regulated atmosphere for packaging perishable goods
US7644560B2 (en) * 1998-09-10 2010-01-12 The Bowden Group System and method for providing a regulated atmosphere for packaging perishable goods
WO2000053498A1 (en) * 1999-03-11 2000-09-14 Seelen A/S A top film applicator and a method of applying top film onto a cargo
US20100236192A1 (en) * 2004-11-03 2010-09-23 Cousins Neil G Stretch wrap machine with top corner film transfer
US8166732B2 (en) * 2004-11-03 2012-05-01 Cousins Packaging Inc. Stretch wrap machine with top corner film transfer
US20080216450A1 (en) * 2006-03-27 2008-09-11 Transfresh Corporation Methods and apparatus for preserving pallet units of fresh perishables in modified atmosphere-containing bags
US20100293893A1 (en) * 2006-03-27 2010-11-25 Macleod Richard F J Methods and apparatus for preserving pallet units of fresh perishables in modifield atmosphere-containing bags
US8024912B2 (en) * 2006-03-27 2011-09-27 Chiquita Brands, Llc Methods for preserving pallet units of fresh perishables in modified atmosphere containing bags
US20070220830A1 (en) * 2006-03-27 2007-09-27 Macleod Richard F J Methods and apparatus for preserving pallet units of fresh perishables in modified atmosphere-containing bags
US7770366B2 (en) * 2006-03-27 2010-08-10 Transfresh Corporation Systems for automatically sealing a plastic bag/enclosure over containers of perishables carried on a pallet
US20140215968A1 (en) * 2008-05-28 2014-08-07 Lantech.Com, Llc Film Clamp And Related Methods And Apparatuses For Wrapping Loads
US9290285B2 (en) * 2008-05-28 2016-03-22 Lantech.Com, Llc Film clamp and related methods and apparatuses for wrapping loads
US20120096814A1 (en) * 2009-05-12 2012-04-26 Reiner Hannen Method and apparatus for packaging an object in film
US9003744B2 (en) * 2009-05-12 2015-04-14 Msk-Verpackungs-Systeme Gmbh Apparatus for packaging an object in film
US20110023419A1 (en) * 2009-08-03 2011-02-03 Lancaster Iii Patrick R Methods and apparatuses for loading and unloading by pallet truck
US8474223B2 (en) * 2009-08-03 2013-07-02 Lantech.Com, Llc Apparatus for loading and unloading by pallet truck a wrapping surface
US20130014476A1 (en) * 2011-05-13 2013-01-17 Stork Brian R High speed vertical film wrapping and sealing machine
US10160558B2 (en) * 2011-05-13 2018-12-25 Texwrap Packaging Systems Llc High speed vertical film wrapping and sealing machine
US20140157724A1 (en) * 2012-12-06 2014-06-12 Reiner Hannen Method and apparatus for wrapping a film around an object
US10538354B2 (en) * 2012-12-06 2020-01-21 Msr-Verpackungs-Systeme Gmbh Method and apparatus for wrapping a film around an object
US20160029563A1 (en) * 2013-03-15 2016-02-04 Groupe Anderson Inc. Wrapping device and method of operation thereof
US20140373483A1 (en) * 2013-06-19 2014-12-25 Frank Michels Packaging method and apparatus
US10336491B2 (en) * 2013-06-19 2019-07-02 Msk-Verpackungs-Systeme Gmbh Packaging method and apparatus
US10793332B2 (en) * 2014-09-29 2020-10-06 Ysn Imports, Inc. System and method for palletless shipment of gas cylinder arrays
EP3431399A1 (de) * 2017-07-21 2019-01-23 Schwucht, Valerio Vorrichtung und verfahren zum verpacken gestapelter länglicher gegenstände sowie verwendung einer derartigen vorrichtung
US20230020790A1 (en) * 2021-07-19 2023-01-19 Belco Packaging Systems, Inc. Vertical sealer apparatus and methods of vertically sealing
US12344420B2 (en) * 2021-07-19 2025-07-01 Belco Packaging Systems, Inc. Vertical sealer apparatus and methods of vertically sealing

Also Published As

Publication number Publication date
DE1949047A1 (de) 1970-04-09
JPS5016710B1 (enExample) 1975-06-14
GB1274727A (en) 1972-05-17

Similar Documents

Publication Publication Date Title
US3640048A (en) Method and apparatus for a pallet load
US3667598A (en) Wrapped pallet load
US3590549A (en) Method and apparatus for wrapping a pallet load
US3896604A (en) Double wrap packaging apparatus
US3793798A (en) Shrink palletized process and apparatus
US3852937A (en) Shrink-wrapping method and apparatus
AU582001B2 (en) Machine for automatic protective wrapping for use with different-sized baggage
CA1125709A (en) Wrapping material and method of forming wrapped package
AU2017383135B2 (en) Packaging installation and method for producing a packaging unit, and also a packaging unit made of packaging sleeves and external packaging
US3791100A (en) Bundling machine and process
US3490194A (en) Packaging machine
US3127273A (en) Methqd for continuously wrapping biscuits
US3999357A (en) Method of making double wrap package
US3504476A (en) Method of packaging
US20130067864A1 (en) Packaging a Product Bundle
GB1382842A (en) Package with handle and a method and a machine for the manufacture of said package
US3892057A (en) Packaging method and apparatus
US3748812A (en) Machine for covering a pallet with shrinkable plastic film
JP3445211B2 (ja) 包材ロール
US3392504A (en) Method of packaging articles in stretched plastic foils
JPH1029606A (ja) 波板の梱包方法
ES527941A0 (es) Perfeccionamientos en las maquinas para embalar productos en pelicula termoencogible
US3550354A (en) Wrapping apparatus
US3094823A (en) Apparatus and method for forming sales packages
GB1509523A (en) Wrapping or packaging

Legal Events

Date Code Title Description
AS Assignment

Owner name: WELDOTRON OF DELAWARE, INC., A DE CORP., DELAWARE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:WELDOTRON CORPORATION, A NJ CORP.;REEL/FRAME:005745/0166

Effective date: 19910619

AS Assignment

Owner name: CONGRESS FINANCIAL CORPORATION, NEW YORK

Free format text: SECURITY INTEREST;ASSIGNOR:WELDOTRON OF DELAWARE, INC.;REEL/FRAME:005760/0956

Effective date: 19910625

AS Assignment

Owner name: WELDOTORON CORPORATION, NEW JERSEY

Free format text: RELEASE OF ASSIGNMENT;ASSIGNOR:CONGRESS FINANCIAL CORPORATION;REEL/FRAME:008423/0361

Effective date: 19961211