US3753824A - Process of manufacturing carrying bags which comprise u-shaped carrying handles of plastics material sheeting - Google Patents

Process of manufacturing carrying bags which comprise u-shaped carrying handles of plastics material sheeting Download PDF

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Publication number
US3753824A
US3753824A US00123580A US3753824DA US3753824A US 3753824 A US3753824 A US 3753824A US 00123580 A US00123580 A US 00123580A US 3753824D A US3753824D A US 3753824DA US 3753824 A US3753824 A US 3753824A
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United States
Prior art keywords
strip
web
center
forming
end portions
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
US00123580A
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English (en)
Inventor
F Bosse
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.)
Windmoeller and Hoelscher KG
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Windmoeller and Hoelscher KG
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Publication date
Priority claimed from DE19702054277 external-priority patent/DE2054277B2/de
Application filed by Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
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Publication of US3753824A publication Critical patent/US3753824A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D1/00—Multiple-step processes for making flat articles ; Making flat articles
    • B31D1/06—Multiple-step processes for making flat articles ; Making flat articles the articles being handles
    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/06—Handles
    • B65D33/10—Handles formed of similar material to that used for the bag
    • B65D33/105—U-shaped
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S493/00—Manufacturing container or tube from paper; or other manufacturing from a sheet or web
    • Y10S493/916—Pliable container
    • Y10S493/926—Pliable container having handle or suspension means
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1051—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by folding
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062—Prior to assembly
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062—Prior to assembly
    • Y10T156/1075—Prior to assembly of plural laminae from single stock and assembling to each other or to additional lamina

Definitions

  • This invention relates to a process of manufacturing carrying bags which comprise U-shaped carrying handles of plastics material sheeting, such as polyethylene or the like, the carrying bags themselves consisting usually of the same material.
  • the German Patent Specification 1,181,035 discloses a process of manufacturing carrying bags which are made from paper or the like and are provided on each of two opposite bag walls with a U-shaped carrying handle, which consists of paper or the like and protrudes above the opening of the bag.
  • the carrying handles are made from a carrying handle strip, which is formed into the shape of a U.
  • This carrying handle strip is transversely severed from a supply web which has a width that corresponds to the length of the carrying handle strips and the strip during its further processing is conveyed in a transverse direction until the finished U-shaped carrying handles are attached to the bags, which are conveyed in the same direction.
  • the end portions of the carrying handle strip are angled and are turned about their respective axes at the same time to form the legs of the U-shaped carrying handle. It has been found in practice that such process cannot be used in the manufacture of a carrying handle from plastics material sheeting because, contrary to paper, plastics material owing to its flexibility and elasticity has properties which differ entirely from those of paper during the processing. Specifically, plastics material cannot be provided with permanently folded edges.
  • the intermediate portion of the strip which intermediate portion is not taken hold of, progressively moves away from the end portions of the strip, which are taken hold of and rotated.
  • the process of manufacture is particularly simple because it is sufficient to impart pivotal movements to the strip end portions. These pivotal movements are performed first about two parallel axes lying in the plane of the :strip and then about two axes which are also parallel and at right angles to the plane of the strip.
  • the carrying handle strips are severed from a web of plastics material sheeting having a width which corresponds to the length of the desired strips and. having side portions which are infolded toward the center.
  • the severing of the individual strips from the web having lateral margins which are folded inwardly toward the center may preferably be effected in known manner first in an incomplete degree so as to leave small lands. In this case, the strips can be handled more conveniently. The small lands will be torn only shortly before the next step consisting of the rotation of the strip end portions.
  • the U-shaped carrying handles may be connected in a particularly simple manner to a carrying bag web which consists also of plastics material sheeting and from which carrying bags are subsequently made.
  • the plastics material sheeting is provided at both longitudinal edges with respective adhesive layers which are continuous in the longitudinal direction and the solvent is extracted from the adhesive before the sheeting strips are severed and folded into the shape of a U.
  • the legs of the carrying handles folded into the shape of a U are provided with an adhesive covering during the manufacture of said handles and this adhesive covering may be used to adhere the carrying handles to the bag web with application of pressure.
  • the application of adhesive to defined areas of the bag web is avoided; such application is not desired in the processing of adhesives for plastics material.
  • the carrying handles may be applied in pairs to the bag web, as disclosed in said French Patent Specification 1,448,468, in that, in a development of the process according to the invention, a double-width plastics material sheeting is provided centrally between the two marginal adhesive coverings with an additional adhesive covering, which is continuous in the longitudinal direction and has twice the width of each marginal adhesive covering, and, when the solvent has been extracted from the adhesive, the plastics material sheeting is severed into two individual sheeting webs along a line which bisects the intermediate adhesive covering, whereafter said individual sheeting webs are processed as described to form U-shaped carrying handles.
  • FIG. 1 shows a strip
  • FIG. 2 shows the strip having reversely folded end portions.
  • FIG. 3 shows a position of the strip during the rotation.
  • FIG. 4 shows the complete carrying handle
  • FIG. 5 shows an embodiment of a plastics material sheeting which is provided with adhesive coverings and intended for use in the making of carrying handles.
  • FIG. 6 shows another embodiment of a carrying handle web provided with adhesive coverings.
  • FIG. 7 shows a portion of a bag web to which carrying handles have been adhered.
  • FIG. 8 is an elevation showing the carrying bag made by the process according to the invention.
  • FIG. 9 is a sectional view taken on line IX-IX in FIG. 8.
  • FIG. 10 shows a reinforcing sheet to which a carrying handle has been adhered.
  • the end portions 1, 2 of the strip 3 are reversely folded toward the center 4 of the strip in such a manner that the distance between the reversely folded end portions 1, 2 is approximately as large as the length of the top of the intended grip portion of the carrying handle.
  • Two vacuum cups 5 are provided, each of which has two suction openings 6 indicated in dash-dot lines. Each of said vacuum cups grips one of the reversely folded end portions of the strip 3 adjacent to the line which will subsequently form the center line 7 of the leg 8 of the carrying handle 9.
  • the strip end portions 1, 2 are then rotated by means of the vacuum cups 5 in mutually opposite senses through to form the carrying handle 9 into its final shape.
  • A designates the distance between the center lines 7 of the completely rotated carrying handle legs 8. This distance is equal to the distance between the axes of rotation of the vacuum cups.
  • the reversely folded strip end portions cannot extend beyond the center line 7 even when the vacuum cups are eccentric with respect to the axis of rotation. Only the exact distance A between the axes of the vacuum cups is essential.
  • a plastics material sheeting 10 which has a width corresponding to the length of the sheeting strip to be folded to form a U-shaped carrying handle.
  • This sheeting 10 is flat and unfolded and is provided on its underside with longitudinally continuous adhesive coverings l3 and '14 along the two longitudinal edges 11 and 12 of the sheeting.
  • the two side portions 15 and 16 of the plastics material sheeting 10 are then infolded toward the center of the sheeting so that the adhesive coverings l3 and 14 lie on the top of the side portions 15 and 16.
  • the suction surface of the vacuum cups may be covered with an anti-blocking material, such as polytetrafluoroethylene.
  • the U-shaped carrying handles and any reinforcing sheets previously joined to them may be adhered to the bag web by means of the adhesive coverings l3 and 14' so that it is not necessary to provide the bag web with defined adhesive coverings corresponding to the desired areas in which the handle legs are to be joined.
  • two carrying handles are made in accordance with FIG. 6 from a plastics material sheeting 19 which has twice the width of the plastics material sheeting 10.
  • the sheeting 19 is provided on its underside along its two longitudinal edges with respective adhesive coverings 20 and 21, which are longitudinally continuous. Centrally between the two adhesive coverings 20 and 21, the sheeting 19 is provided with another adhesive covering 22, which is longitudinally continuous and has twice the width of each marginal adhesive covering.
  • the sheeting 19 is severed into individual sheetings l9 and 19" of equal width along a line 23, which bisects the central adhesive covering 22 into two equal halves 22 and 22".
  • Each individual sheeting l9 or 19" has now along both longitudinal edges adhesive coverings 21, 22' and 20, 22" of equal width and is processed to form U-shaped carrying handles as described.
  • the handles 9 are applied to the bag web 24 (FIG. 7) in pairs with spacings corresponding to the desired length and width of the bag by means of the adhesive coverings 13' and 14' on the carrying handle legs 8.
  • the bag web 24 has preferably a rooflike perforation line 25 adjacent to the carrying handle legs 8 somewhat above the intended bonding areas.
  • the handles When the handles have been applied to the bag web 24, the latter is formed into a'tubing, e.g., a tubing having side gussets, by folding about the fold lines 26 to 32 indicated in dash-dot lines in FIG. 7.
  • the resulting tubing having side gussets is provided with a welded side seam 33 (FIG.
  • a reinforcing sheet 36 (FIG. 10) provided with an adhesive covering 37 from which the solvent has already been extracted may be bonded to each handle 9 before the latter is adhered to the bag web 24.
  • the unit formed by the handle 9 and the reinforcing sheet 36 is then joined to the bag web 24 in that the adhesive covering 37 of the reinforcing sheet 36 and the adhesive coverings 13' and 14 of the handle 9 are adhered to the bag web.
  • the reinforcing sheets 36 may be made from a plastics material sheeting web, which is provided throughout its surface with a continuous adhesive covering 37 and from which individual reinforcing sheets 36 are severed when the solvent has been extracted from the adhesive covering.
  • a process of manufacturing U-shaped carrying handles for use in manufacturing carrying bags comprising forming a strip of flexible plastic sheet material, folding the end portions of said strip toward each other and toward the center of said strip so that said end portions are equidistant from the center of said strip and lie parallel to said strip, and gripping the end portions of the folded strip and rotating said end portions in mutually opposite directions about respective axes which are spaced from the center of said strip by the desired distance between said center and the legs of said U- shaped carrying handles until said legs are parallel to each other and form the legs of said U-shaped carrying handle.
  • said forming and folding steps comprise forming a web of a flexible plastics sheet material having a width equal to the length of the desired strip, folding the side portions of said web toward each other and toward the center of said web until said side portions are equidistant from the center of said web and are parallel to said web and severing said strip from said web.
  • said forming and folding steps comprise forming a web of flexible plastics sheet material having a width which is twice the length of the desired strip, forming an adhesive layer comprising removeable solvent on each of the side portions of said web, forming an adhesive layer comprising removeable solvent in the central portion of said web which is twice the width of said adhesive layers on said side portions and whose edges are equidistant from the center of said web, extracting solvent from said adhesive layers, severing said web along a line which bisects said intermediate adhesive layer to form two individual sheets and severing said strip from each of said individ ual sheets.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
US00123580A 1970-03-13 1971-03-12 Process of manufacturing carrying bags which comprise u-shaped carrying handles of plastics material sheeting Expired - Lifetime US3753824A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2012084 1970-03-13
DE19702054277 DE2054277B2 (de) 1970-11-04 1970-11-04 Verfahren zum herstellen eines u-foermigen traggriffes aus einer kunststoffolie fuer tragtaschen

Publications (1)

Publication Number Publication Date
US3753824A true US3753824A (en) 1973-08-21

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US00123580A Expired - Lifetime US3753824A (en) 1970-03-13 1971-03-12 Process of manufacturing carrying bags which comprise u-shaped carrying handles of plastics material sheeting

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US (1) US3753824A (enExample)
FR (1) FR2084531A5 (enExample)
GB (1) GB1338026A (enExample)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3818810A (en) * 1972-05-26 1974-06-25 Windmoeller & Hoelscher Apparatus for making handles for carrier bags
US4384602A (en) * 1981-06-02 1983-05-24 Ores Pauline A Inflated carrying apparatus
US5609556A (en) * 1994-05-27 1997-03-11 Fischer & Krecke Gmbh & Co. Method and apparatus for manufacturing bags with strap-shaped carrying handles
USD423782S (en) 1998-04-09 2000-05-02 Shoulder strap
USD431356S (en) * 1998-04-09 2000-10-03 Airpacks, Inc. Backpack
USD437997S1 (en) 1998-04-09 2001-02-27 Airpacks, Inc. Backpack with open flaps
US6471105B1 (en) 1998-05-14 2002-10-29 Airpacks, Inc. Shoulder carrier with inflatable lumbar support
US6574940B2 (en) * 2000-04-08 2003-06-10 Talleres Daumer, S.A. Packing machines of products in mesh bags with handle
US20030145431A1 (en) * 2001-01-31 2003-08-07 Alain Dufrene Handle mounted on packaging and tool used to mount said handle
US20040089687A1 (en) * 2002-11-08 2004-05-13 Ammerman Jill Greene Shoulder carrier with laterally moveable shoulder strap
US6863202B2 (en) 1998-05-14 2005-03-08 Airpacks, Inc. Shoulder carrier with inflatable lumbar support
US20050119101A1 (en) * 2003-08-14 2005-06-02 Dempson Packaging, Ltd. Method and apparatus for manufacturing handles for bags
US20060013513A1 (en) * 2004-07-17 2006-01-19 Lemo Maschinenbau Gmbh Handle bag
US20110206300A1 (en) * 2010-02-10 2011-08-25 Jens Koesters Side-gusset bag
US20130203577A1 (en) * 2010-06-16 2013-08-08 Paolo Zanarella Handle-forming machine
US9162403B2 (en) 2013-03-15 2015-10-20 Davis-Standard, Llc Apparatus for manufacturing and processing pre-stretch films having strips of increased thickness
CN108608675A (zh) * 2018-03-28 2018-10-02 江苏南江智能装备股份有限公司 一种新型纸质提手机
CN108688233A (zh) * 2018-03-28 2018-10-23 江苏南江智能装备股份有限公司 一种曲线运动作用力模块化纸质提手折叠装置及方法
CN110303720A (zh) * 2018-03-27 2019-10-08 无锡众鼎包装科技有限公司 一种纸质提手的生产设备
EP3450343B1 (de) 2017-08-28 2021-01-06 Papier-Mettler KG Kunststofftragetasche und halteschlaufe für eine kunststofftragetasche

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9109333U1 (de) * 1991-07-29 1992-11-26 Henkel KGaA, 4000 Düsseldorf Formstabiler Verpackungsbehälter mit Papiertragegriff
FR2710610B1 (fr) * 1993-10-01 1997-01-24 Joseph Meynard Procédé de fabrication d'une poignée pour sac en papier ou d'un autre matériau.
GB2446384B (en) * 2007-02-06 2009-07-29 Dempson Packaging Ltd Method and apparatus for attaching handles to a continuous web and associated product
GB2446481B (en) * 2007-02-06 2009-07-29 Dempson Packaging Ltd Method and apparatus for attaching handles to a continous web and associated product

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3034409A (en) * 1958-05-14 1962-05-15 Finke Arno Method and apparatus for producing and applying bag handles
US3660204A (en) * 1968-07-17 1972-05-02 Windmoeller & Hoelscher Apparatus for applying carrying handles of paper or plastics material to a web

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3034409A (en) * 1958-05-14 1962-05-15 Finke Arno Method and apparatus for producing and applying bag handles
US3660204A (en) * 1968-07-17 1972-05-02 Windmoeller & Hoelscher Apparatus for applying carrying handles of paper or plastics material to a web

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3818810A (en) * 1972-05-26 1974-06-25 Windmoeller & Hoelscher Apparatus for making handles for carrier bags
US4384602A (en) * 1981-06-02 1983-05-24 Ores Pauline A Inflated carrying apparatus
US5609556A (en) * 1994-05-27 1997-03-11 Fischer & Krecke Gmbh & Co. Method and apparatus for manufacturing bags with strap-shaped carrying handles
USD423782S (en) 1998-04-09 2000-05-02 Shoulder strap
USD431356S (en) * 1998-04-09 2000-10-03 Airpacks, Inc. Backpack
USD437997S1 (en) 1998-04-09 2001-02-27 Airpacks, Inc. Backpack with open flaps
US6471105B1 (en) 1998-05-14 2002-10-29 Airpacks, Inc. Shoulder carrier with inflatable lumbar support
US6863202B2 (en) 1998-05-14 2005-03-08 Airpacks, Inc. Shoulder carrier with inflatable lumbar support
US6574940B2 (en) * 2000-04-08 2003-06-10 Talleres Daumer, S.A. Packing machines of products in mesh bags with handle
US20030145431A1 (en) * 2001-01-31 2003-08-07 Alain Dufrene Handle mounted on packaging and tool used to mount said handle
US6981937B2 (en) * 2001-01-31 2006-01-03 Alain Dufrene Handle for mounting on packaging, device for mounting the handle and method of mounting handles on packaging
US20040089687A1 (en) * 2002-11-08 2004-05-13 Ammerman Jill Greene Shoulder carrier with laterally moveable shoulder strap
US6793112B2 (en) 2002-11-08 2004-09-21 Airpacks, Inc. Shoulder carrier with laterally moveable shoulder strap
US20050119101A1 (en) * 2003-08-14 2005-06-02 Dempson Packaging, Ltd. Method and apparatus for manufacturing handles for bags
US20060013513A1 (en) * 2004-07-17 2006-01-19 Lemo Maschinenbau Gmbh Handle bag
US20110206300A1 (en) * 2010-02-10 2011-08-25 Jens Koesters Side-gusset bag
US8597168B2 (en) * 2010-02-10 2013-12-03 Nordenia Deutschland Halle Gmbh Method of making bag with handle on side gusset
US20130203577A1 (en) * 2010-06-16 2013-08-08 Paolo Zanarella Handle-forming machine
US9314988B2 (en) * 2010-06-16 2016-04-19 Flat Systems S.R.L. Handle-forming machine
US9162403B2 (en) 2013-03-15 2015-10-20 Davis-Standard, Llc Apparatus for manufacturing and processing pre-stretch films having strips of increased thickness
US12415652B2 (en) 2017-08-28 2025-09-16 Mettler Packaging LLC Reusable plastic carrier bag
US11820555B2 (en) 2017-08-28 2023-11-21 Mettler Packaging LLC Reusable plastic carrier bag
EP3450343B1 (de) 2017-08-28 2021-01-06 Papier-Mettler KG Kunststofftragetasche und halteschlaufe für eine kunststofftragetasche
CN110303720A (zh) * 2018-03-27 2019-10-08 无锡众鼎包装科技有限公司 一种纸质提手的生产设备
CN108608675B (zh) * 2018-03-28 2019-06-04 江苏南江智能装备股份有限公司 一种新型纸质提手机
CN108688233A (zh) * 2018-03-28 2018-10-23 江苏南江智能装备股份有限公司 一种曲线运动作用力模块化纸质提手折叠装置及方法
CN108608675A (zh) * 2018-03-28 2018-10-02 江苏南江智能装备股份有限公司 一种新型纸质提手机

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Publication number Publication date
GB1338026A (en) 1973-11-21
FR2084531A5 (enExample) 1971-12-17

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