US3768380A - Production of containers - Google Patents

Production of containers Download PDF

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Publication number
US3768380A
US3768380A US00278056A US3768380DA US3768380A US 3768380 A US3768380 A US 3768380A US 00278056 A US00278056 A US 00278056A US 3768380D A US3768380D A US 3768380DA US 3768380 A US3768380 A US 3768380A
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US
United States
Prior art keywords
strip
edges
channel
shaped portions
transverse
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
US00278056A
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English (en)
Inventor
S Stark
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.)
Tetra Pak AB
Original Assignee
Tetra Pak Developpement SA
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 Tetra Pak Developpement SA filed Critical Tetra Pak Developpement SA
Application granted granted Critical
Publication of US3768380A publication Critical patent/US3768380A/en
Assigned to AKTIEBOLAGET TETRA PAK reassignment AKTIEBOLAGET TETRA PAK CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). (SWEDEN) Assignors: TETRA PAK INTERNATIONAL AKTIEBOLAG
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65D5/32—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 having bodies formed by folding and interconnecting two or more blanks each blank forming a body part, whereby each body part comprises at least one outside face of the box, carton or tray
    • B65D5/322—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 having bodies formed by folding and interconnecting two or more blanks each blank forming a body part, whereby each body part comprises at least one outside face of the box, carton or tray at least one container body part formed by folding a single blank to essentially U-shape with or without extensions which form openable lid elements
    • B65D5/324—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 having bodies formed by folding and interconnecting two or more blanks each blank forming a body part, whereby each body part comprises at least one outside face of the box, carton or tray at least one container body part formed by folding a single blank to essentially U-shape with or without extensions which form openable lid elements at least two container body parts, each formed by folding a single blank to essentially U-shape
    • 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
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B31B2105/002—Making boxes characterised by the shape of the blanks from which they are formed
    • B31B2105/0025—Making boxes by uniting two U-shaped blanks

Definitions

  • ABSTRACT A method of producing containers in which one strip element is folded to provide uniform, transverse, channel-shaped portions and a second strip member is placed over the channel-shaped portions, the lateral, longitudinal side edges of the member being folded down against the edges of the channel-shaped portions and sealed thereto to form a container.
  • the side edges of the member being cut to provide transverse slits therein'to form flaps of a size to cover the open ends of each channel-shaped portion to thus facilitate manufacture of the containers.
  • This invention relates to the production of containers, and more especially containers formed by folding a first strip or web of packaging material transversely at selected points along its length to set up the strip or web into a scalloped, or transversely fluted or -channelled form, and affixing a second strip or web, substantially alignedwith the first strip or web, to the upstanding transverse folds of thefirst strip or web, the edge zones of the second strip or web being folded down to close the ends of the recesses or cavities formed, by the said folding, in the first strip or web.
  • the invention consists in a method of producing containers wherein a first strip or web of packaging material is formed, by upstandingtransverse folds with a series of transverse open-ended channels or recesses, a second strip or web of packaging material is applied to the upper edges of said transverse folds, and the side zonesof said second strip folded. down against the end edges of said channels or recesses to close the open ends thereof, the contacting lines or areas of the two strips or websbeing thereafter sealed together in order to form a closed container, wherein the foldable edge zones of said second strip or web are divided into separated flaps by cuts extending inwards from the edges before being sealed to the first strip or web.
  • the cuts may extend inwards from the edges of the second strip or web substantially to the fold lines of the edge zones.
  • Each flap is preferably so dimensioned as to close an end of one recess of channel formed in the first stripor web.
  • the cutting of the edge zones to form the flaps is preferably carried out while the second strip or web is in a flat condition. Apart from'the cutting of the edge zone of one web into flaps, as indicated above, the procedure for advancing. the webs, bringing and sealing them together, filling the containers so formed, and sealing and separating'thern, may be substantially in the same manner as described in the abovementioned prior application.
  • the invention further consists in a container whenever produced by the method as specified in the next preceding paragraph.
  • FIG. 1 shows diagrammatically in the course of carrying out the method in accordance with theinvention, a preformed first strip of packaging material, i.e. a strip provided with a row of transverse channel-shaped sections and also a second stripabove the first strip and already providedwith cuts or slots to form flaps, of which the foremost pair is shown as. being bent or folded inwards, and
  • a preformed first strip of packaging material i.e. a strip provided with a row of transverse channel-shaped sections and also a second stripabove the first strip and already providedwith cuts or slots to form flaps, of which the foremost pair is shown as. being bent or folded inwards
  • a first strip 13 of relatively stiff packaging material is folded transversely in such a way that channel-shaped sections or recesses 2 are formed. These are situated behind one another, each channelshaped section being provided with walls 14 connected together at the upper folds 16 by means of short connectors l7.
  • a second strip 3 also of relatively stiff, and preferably the same material, is suitably indented or otherwise provided with a line of weakness to form fold lines 12 parallel to each edge, and'defining edge zones foldable downwards as seen in FIG. 1.
  • the side zones of the web 3 are divided by spaced cuts or slits 23!), extending from the edge of the web on each side to the fold lines 12, into side flaps, 23, 23a etc.
  • Each flap is so dimensioned that when folded down, as illustrated it abuts the edges of a channel recess 2 and closes the end of the recess when bondedto the edges of the web 13 and walls 14, while the central part of the web 3 is bonded to the transverse connectors 17.
  • the transverse width of the mid-portion 29 of the web 3 is approximately the same as the width of the strip 13, and the width of each flap is approximately equal to the distance between adjacent legs 14 of a channel-shaped recess 2, so that when the web 29 is brought into contact with the top folded edges 16 of the walls 14 of the appropriate channel-shaped recess 2, the sides of the flaps 23 with the end edges of the walls 14, and the side edges of the flaps 23 with the outer edges of the walls of the appropriate channel-shaped recess2, all these surfaces can be joined together at these edges to form a liquid-tight joint.
  • the connecting pieces 17 which connect the walls 14 of adjacent channel-shaped recesses 2 it is preferred that the :slots 23b shall be approximately of the same width as, or only slightly narrower than, the connecting pieces 17.
  • FIG. 2 it is shown how the first -strip 13 which is folded into channel-shaped sections is located in the forming parts 25 which forming parts are provided with spaced, upright separating walls 26over which the strip 13 is formed.
  • the width of the first strip 13 in such a way, that it is somewhat wider than the forming parts 25, in order the ensure that the side edges of the channel-shaped recesses 2 orsections 2 project somewhat from the side edges of the forming parts 25.
  • the formed hollow spaces are filled with the help of afilling tube (not shown), which is located underneath the strip 3, whereafter the parts 17 of the folded strip 13 which are located against the upper end surface of the upright separating walls 26 of the forming parts 25, are sealed against the inside surface of the strip 3 along the sealing area 16 by means of the sealing device 27, which can be an ultrasonic sealing device or a heat sealing device.
  • afilling tube not shown
  • the sealing of the flaps-23 against the side edges of the folded strip 13 can preferably be performed by means of heat and the sealing operation can be done in such a way, that the inside of the flaps 23 and perhaps even the side edges of the folded strip 13 are heated by means of hot air or heat radiation, whereafter pressure devices (not shown) fold and press the flaps 23 against the side edges of the folded strip 13 in such a way, that a tight and mechanically strong seal is obtained.
  • the slits 23b in the second strip 3 must be located in such a way, that the slits when the flaps are folded down will be located just over one of the upright folds in the first strip 13.
  • the filled and sealed packaging containers 30 are separated from each other by means of a cutting device 100 which is arranged to cut through the joined strips 3 and 13 in the area 17.
  • thermoplastic material e.g., foamed sheet of polystyrene or other plastics material, or at least from a material provided with a thermoplastic layer along the contact lines or surfaces.
  • a method of producing containers comprising folding a first strip element of foldable packaging material transversely of its length to form a plurality of uniform, transverse, channel-shaped portions in a continuous series in the element, applying a second strip member of foldable packaging material to the upper edges of the the transverse channel-shaped portions, forming spaced, transverse cuts along the edges of the second strip member to form flaps, said cuts extending inwardly from the outer edges of the second strip member, folding the lateral longitudinal side edges of the second strip member down against the end edges of the transverse, channel-shaped portions to close the open ends thereof, portions of the inner surface of the second strip member contacting the edges of the first strip element and sealing the contacting inner surface portions to the edges, the step of forming the cuts preceeding the step of sealing the contacting inner surface portions to the edges.
  • each flap formed by the spaced, transverse cuts has a width and a length at least equal to the width and the length, respectively of the transverse channel-shaped portions of the first strip element.
  • first strip element and the second strip member comprise heat-sealable material and wherein the sealing is carried out by heat and pressure at least along the lines and surfaces of contact.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Package Closures (AREA)
  • Thermally Insulated Containers For Foods (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
US00278056A 1971-08-20 1972-08-04 Production of containers Expired - Lifetime US3768380A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2141892A DE2141892C3 (de) 1971-08-20 1971-08-20 Verfahren zur Herstellung von Verpackungsbehältern

Publications (1)

Publication Number Publication Date
US3768380A true US3768380A (en) 1973-10-30

Family

ID=5817358

Family Applications (1)

Application Number Title Priority Date Filing Date
US00278056A Expired - Lifetime US3768380A (en) 1971-08-20 1972-08-04 Production of containers

Country Status (25)

Country Link
US (1) US3768380A (es)
JP (1) JPS5512376B2 (es)
AR (1) AR196880A1 (es)
AT (1) AT323069B (es)
AU (1) AU468630B2 (es)
BE (1) BE787737A (es)
BR (1) BR7205634D0 (es)
CA (1) CA967416A (es)
CH (1) CH555238A (es)
CS (1) CS186765B2 (es)
DD (1) DD107234A6 (es)
DE (1) DE2141892C3 (es)
DK (1) DK128993B (es)
ES (1) ES405990A1 (es)
FI (1) FI51158C (es)
FR (1) FR2150350B1 (es)
GB (1) GB1332628A (es)
IE (1) IE36871B1 (es)
IT (1) IT963958B (es)
NL (1) NL7211199A (es)
NO (1) NO136030C (es)
SE (1) SE368942B (es)
SU (1) SU434643A3 (es)
YU (1) YU211272A (es)
ZA (1) ZA725390B (es)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003299A (en) * 1974-04-18 1977-01-18 Astra-Werke Gmbh Druck & Verpackung Packing system
US6434812B1 (en) 1997-01-29 2002-08-20 Tetra Laval Holdings & Finance S.A. Method of manufacturing and handling parts for a packaging container
US6464255B1 (en) 2001-05-10 2002-10-15 Patent Holding Company Knee bolster airbag system

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1018529B (it) * 1974-05-20 1977-10-20 Guolo G Gruppo di aggancio a tirante smontabile per scarponi da sci
JPS51126734U (es) * 1975-03-22 1976-10-14
EP0115746A3 (de) * 1983-02-02 1984-09-26 Interrondo AG Verfahren zum Herstellen von Schachteln und nach dem Verfahren hergestellte Schachteln
EP0429064A1 (en) * 1989-11-20 1991-05-29 Fuji Photo Film Co., Ltd. Package of photographic photosensitive material and packaging apparatus
CN103907249B (zh) 2011-11-30 2015-02-25 松下电器产业株式会社 氮化物半导体发光装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US815479A (en) * 1904-06-25 1906-03-20 James Marshall Pasteboard-bending machine.
US1997718A (en) * 1934-08-03 1935-04-16 Claff Clarence Lloyd Folding box and method of making the same
US3315435A (en) * 1962-10-23 1967-04-25 Signet Packaging Entpr Ltd Method of packaging cuboid containers
US3698624A (en) * 1969-08-13 1972-10-17 Cordotex Sa Packaging containers of parallelepiped shape

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US815479A (en) * 1904-06-25 1906-03-20 James Marshall Pasteboard-bending machine.
US1997718A (en) * 1934-08-03 1935-04-16 Claff Clarence Lloyd Folding box and method of making the same
US3315435A (en) * 1962-10-23 1967-04-25 Signet Packaging Entpr Ltd Method of packaging cuboid containers
US3698624A (en) * 1969-08-13 1972-10-17 Cordotex Sa Packaging containers of parallelepiped shape

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003299A (en) * 1974-04-18 1977-01-18 Astra-Werke Gmbh Druck & Verpackung Packing system
US6434812B1 (en) 1997-01-29 2002-08-20 Tetra Laval Holdings & Finance S.A. Method of manufacturing and handling parts for a packaging container
US6464255B1 (en) 2001-05-10 2002-10-15 Patent Holding Company Knee bolster airbag system

Also Published As

Publication number Publication date
CA967416A (en) 1975-05-13
JPS4830572A (es) 1973-04-21
NO136030B (es) 1977-04-04
FI51158C (fi) 1976-11-10
DK128993B (da) 1974-08-05
NL7211199A (es) 1973-02-22
AU468630B2 (en) 1976-01-15
IT963958B (it) 1974-01-21
JPS5512376B2 (es) 1980-04-01
SU434643A3 (ru) 1974-06-30
FR2150350A1 (es) 1973-04-06
CH555238A (de) 1974-10-31
FI51158B (es) 1976-08-02
DE2141892A1 (de) 1973-02-22
AT323069B (de) 1975-06-25
NO136030C (no) 1977-07-13
SE368942B (es) 1974-07-29
DD107234A6 (es) 1974-07-20
IE36871B1 (en) 1977-03-16
AR196880A1 (es) 1974-02-28
FR2150350B1 (es) 1976-08-13
YU211272A (en) 1984-06-30
DE2141892C3 (de) 1978-06-15
AU4544272A (en) 1974-02-14
IE36871L (en) 1973-02-20
DE2141892B2 (de) 1977-10-20
BR7205634D0 (pt) 1973-07-17
ES405990A1 (es) 1975-09-16
BE787737A (fr) 1972-12-18
ZA725390B (en) 1973-05-30
GB1332628A (en) 1973-10-03
CS186765B2 (en) 1978-12-29

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AS Assignment

Owner name: AKTIEBOLAGET TETRA PAK

Free format text: CHANGE OF NAME;ASSIGNOR:TETRA PAK INTERNATIONAL AKTIEBOLAG;REEL/FRAME:005150/0367

Effective date: 19870831