EP1661817A2 - Reissverschlussausführungen für wiederverschliessbare Verpackungen - Google Patents

Reissverschlussausführungen für wiederverschliessbare Verpackungen Download PDF

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Publication number
EP1661817A2
EP1661817A2 EP05257131A EP05257131A EP1661817A2 EP 1661817 A2 EP1661817 A2 EP 1661817A2 EP 05257131 A EP05257131 A EP 05257131A EP 05257131 A EP05257131 A EP 05257131A EP 1661817 A2 EP1661817 A2 EP 1661817A2
Authority
EP
European Patent Office
Prior art keywords
zipper
monohook
slider
flangeless
elements
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.)
Withdrawn
Application number
EP05257131A
Other languages
English (en)
French (fr)
Other versions
EP1661817A3 (de
Inventor
Steve Ausnit
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.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
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 Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Publication of EP1661817A2 publication Critical patent/EP1661817A2/de
Publication of EP1661817A3 publication Critical patent/EP1661817A3/de
Withdrawn legal-status Critical Current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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • B65D33/2584—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor characterized by the slider
    • B65D33/2586—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor characterized by the slider being provided with a separating plow
    • B65D33/25865—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor characterized by the slider being provided with a separating plow reaching between the interlocking fastener profiles
    • 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
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • 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
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • B65D33/2541—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor characterised by the slide fastener, e.g. adapted to interlock with a sheet between the interlocking members having sections of particular shape
    • 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
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/25—Zipper or required component thereof
    • Y10T24/2532—Zipper or required component thereof having interlocking surface with continuous cross section
    • Y10T24/2534—Opposed interlocking surface having dissimilar cross section

Definitions

  • the present invention is directed to zipper improvements in reclosable packages that have a slider-operated string zipper attached to a receptacle, the slider being employed to open or close the string zipper for allowing or denying access to the interior volume of the receptacle.
  • One aspect of the invention is a reclosable package comprising: a receptacle comprising first and second walls, respective portions of the first and second walls forming a mouth that communicates with an interior volume of the receptacle; a string zipper comprising mutually interengageable first and second flangeless zipper strips, the first flangeless zipper strip having a back joined to the portion of the first wall, and the second flangeless zipper strip having a back joined to the portion of the second wall; and a slider mounted over the string zipper to cause the first and second flangeless zipper strips to separate when the slider is moved in one direction along the string zipper and to cause the first and second flangeless zipper strips to interengage each other when the slider is moved in an opposite direction along the string zipper, the slider comprising first and second sidewalls, the portions of the first and second walls joined to the first and second flangeless zipper strips passing between the first and second sidewalls of the slider, wherein the first flangeless zipper strip comprises a first monohook element, the second f
  • FIG. 1 A reclosable package comprising a receptacle 2 and a flexible plastic string zipper 4 operated by manipulation of a slider 10 is shown in FIG. 1. It should be understood that the slider-zipper assemblies disclosed herein can be installed in a reclosable package of the type shown in FIG. 1 or other types of reclosable packages having different structures.
  • the receptacle 2 may be made from any suitable film material, including thermoplastic film materials such as low-density polyethylene, substantially linear copolymers of ethylene and a C3-C8 alpha-olefin, polypropylene, polyvinylidene chloride, mixtures of two or more of these polymers, or mixtures of one of these polymers with another thermoplastic polymer.
  • thermoplastic film materials such as low-density polyethylene, substantially linear copolymers of ethylene and a C3-C8 alpha-olefin, polypropylene, polyvinylidene chloride, mixtures of two or more of these polymers, or mixtures of one of these polymers with another thermoplastic polymer.
  • the thickness of the film is preferably 2 mils or less.
  • the receptacle 2 comprises opposing walls (only the front panel 2a is visible in FIG. 1) that may be secured together at opposite side edges of the receptacle by seams 30 and 32 (indicated by dashed lines).
  • the receptacle 2 has an openable mouth, on the inside of which is an extruded plastic string zipper 4.
  • the string zipper 4 comprises a pair of interengageable zipper strips.
  • One zipper strip 6 is visible in FIG. 1.
  • the profiles of the zipper strips may take any form.
  • the string zipper may comprise interlocking rib and groove elements or alternating hook-shaped closure elements or combinations thereof.
  • the preferred zipper material is polyethylene.
  • the upper margins of the front and rear bag walls are respectively sealed to the backs of the respective zipper strips by a conventional conduction heat sealing technique.
  • FIGS. 2-4 A string zipper design in accordance with a first embodiment of the present invention is depicted in FIGS. 2-4.
  • One of the special attributes of the string zipper shown in FIGS. 2-4 resides in that means are provided for strong resistance to opening from the inside of the bag.
  • the upper portion of the string zipper is constructed and arranged for relatively easy opening from the top, while the lower portion of the string zipper is constructed and arranged for strong resistance to opening from the inside of the bag.
  • the zipper design seen in FIGS. 2-4 facilitates alignment of the zipper strips.
  • the profiles of the lower portion of the string zipper 4 are constructed for effectively resisting opening separation from the interlocking engagement shown in FIG. 2 by separating forces exerted on the walls 2a and 2b from inside the bag body.
  • the string zipper comprises first and second flangeless zipper strips 6 and 8.
  • the first flangeless zipper strip 6 comprises a base 20 and first and second profiled closure elements 22, 24 integrally formed with the base.
  • the first and second profiled closure elements 22, 24 project from one side of the base 20, while a portion of a marginal portion of wall 2a is joined to the back surface of the base 20, e.g., by conventional conduction heat sealing in a band-shaped zone of joinder.
  • the second flangeless zipper strip 8 comprises a base 26 and first through third profiled closure elements 28, 30, 32 integrally formed with the base.
  • the first through third profiled closure elements 28, 30, 32 project from one side of the base 26, while a portion of a marginal portion of wall 2b is joined to the back surface of the base 26, e.g., by conventional conduction heat sealing in a band-shaped zone of joinder.
  • the first profiled closure element 22 of the first flangeless zipper strip is an elongated rib having a generally arrowhead-shaped profile.
  • This rib is a member of the set of elements referred to hereinafter as "double hook elements", i.e., elements having two hook flanges directed oppositely.
  • the rib 22 comprises a head 34 having a generally triangular profile with a first lateral hook flange or detent 36 along its upper side and a second lateral hook flange or detent 38 along its lower side.
  • the head 34 is connected to the base 20 by means of a stem 40.
  • the second profiled closure element 24 of the first flangeless zipper strip 6 comprises an elongated hooked element that is spaced apart from and extends in parallel with rib 22.
  • Each hooked element is a member of the set of elements referred to hereinafter as "monohook elements", i.e., elements having a single hook flange.
  • the first and second profiled closure elements 28, 30 of the second flangeless zipper strip 8 comprise mutually parallel elongated hooked elements respectively located adjacent to and on opposite sides of the rib 22 when the string zipper is closed.
  • Hooked element 30 projects from the base 26 of the second flangeless zipper strip 8 and comprises a generally downwardly projecting hook flange or detent 42 on its distal end that engages the generally upwardly projecting hook flange or detent 36 of the rib 22 of the first flangeless zipper strip 6, while hooked element 28 projects from the base 26 of the second flangeless zipper strip and has at its distal end a generally upwardly directed hook flange or detent 44 that engages the generally downwardly projecting hook flange or detent 38 of the rib 22.
  • the hooked elements 28 and 30 define a groove within which the head 34 of rib 22 is inserted when the zipper is closed.
  • the hooked elements 24 and 32 assist in the zipper closing registration or aligning relation as shown in FIG. 3, at the same time that the hook flanges 42 and 44 engage in such relation with the head 34 of rib 22.
  • the multiple alignment guidance cooperatively provided by the several hooked elements of the two sets of profiled closure elements greatly facilitates the zipper closing procedure.
  • Such closing procedure then continues, as zipper closing pressure (indicated by mutually opposing arrows 54 in FIG. 4) is applied, by relative flexing of the flexible profiled closure elements 24, 28, 30, 32, 50 and 52, as indicated by the solid and dashed line positions in FIG. 4.
  • the lower portion of the string zipper 4 is so constructed and arranged that there is efficient, substantially assured resistance against separation due to internal pressures within the receptacle of the package, and the upper portion of the string zipper, together with the lower portion will maintain an effective closure of the receptacle, opening of the receptacle when desired is easily effected by means of a slider 10, the closing end of which is seen in FIG. 2.
  • the slider 10 has a separating finger or plow of the type shown in FIG. 5. The slider is not shown in FIGS. 3 and 4.
  • the slider To open the closed string zipper, the slider must be moved in an opening direction. During slider movement in the opening direction, the separating finger pries the zipper strips 6 and 8 apart with sufficient force to pull the interengaged profiled closure elements apart. When the hook flanges of flangeless zipper strip 6 clear the hook flanges of the second flangeless zipper strip 8, zipper strips are no longer interlocked and the zipper is open, as seen in FIG. 3.
  • the slider 10 comprises a top wall 60, a pair of side walls 56 and 58 connected to opposing sides of the top wall 60, the top wall 60 and side walls 56, 58 forming a tunnel for passage of the string zipper therethrough.
  • the slider 10 further comprises a plow 62 depending from a central portion of the top wall 60 and dividing the slider tunnel into two channels, one for each zipper strip. The ends of the slider are open to allow the zipper to pass through.
  • the width of the tunnel is substantially constant along the section that is divided by the plow 62 and then narrows from a point proximal to the end of the plow to the closing window at one end face of the slider.
  • the narrowing section of the tunnel is formed by a pair of substantially planar, inclined interior surfaces (not shown in FIG. 5), which converge toward the closing window of the slider. These inclined surfaces cam or squeeze the zipper strips toward each other, causing the zipper profiles to interlock, as the slider is moved in the closing direction along the zipper.
  • Retaining projections 64 and 66 project from the side walls 56 and 58 of the slider 10 and extend toward each other. These projections help retain the slider on the zipper.
  • the flangeless zipper strip 6 shown in FIG. 6 also comprises first and second backup flanges 50 and 52 projecting substantially perpendicularly from the opposing ends of the base 82 and respectively overlapping the hooked elements 70 and 72 of zipper strip 8 in backup relation.
  • the hooked element 84 and the backup flange 52 define a groove that receives the hooked element 72 of the flangeless zipper strip 8; and the hooked element 86 and the backup flange 50 define a groove that receives the hooked element 70 of flangeless zipper strip 8.
  • the zipper design shown in FIG. 6 is provided with a self-alignment features in the form of a large centrally located rib 80 that projects from the base 68 of flangeless zipper strip 8 into a channel 78 defined by the backs of hooked elements 84 and 86 of flangeless zipper strip 6.
  • the rib 80 has tapered side surfaces.
  • the channel 78 has tapered surfaces. Alignment of the flangeless zipper strips as they are pressed together is facilitated by the rib 80 interacting with the sides of the channel 78.
  • the rib 80 is sized and shaped to fit snugly in the channel 78 during zipper closure. As a result, the rib's tapered surfaces abut against the hooked elements 84 and 86 so as to prevent inadvertent opening of the zipper.
  • each string zipper comprises a pair of flangeless zipper strips 6 and 8, each of which is an extruded plastic part having a generally constant profile along its length.
  • the backs of the flangeless zipper strips 6, 8 are joined to marginal portions of respective walls (not shown in FIGS. 7-9) of a receptacle, and a slider (also not shown) having a separating finger or plow will be mounted to the string zipper.
  • the hooked elements 98 and 100 of zipper strip 6 are disposed between the hooked elements 112 and 114 of zipper strip 8 in interengaging relationship.
  • the flangeless zipper strip 6 shown also comprises first and second backup flanges 106 and 108 projecting substantially perpendicularly from the opposing ends of the base 96 and respectively overlapping the hooked elements 112 and 114 of zipper strip 8 in backup relation.
  • the hooked element 98 and the backup flange 106 define a groove that receives the hooked element 112 of the flangeless zipper strip 8; and the hooked element 100 and the backup flange 108 define a groove that receives the hooked element 114 of flangeless zipper strip 8.
  • the variation shown in FIG. 8 differs from that shown in FIG. 7 only in that the spreader 122 has a trapezoidal profile instead of a triangular profile.
  • the profile of the spreader may alternatively have a curved (e.g., semi-circular or semi-elliptical) contour.
  • the base of the spreader is integrally formed with the base of zipper strip 8.
  • a triangular or trapezoidal spreader can be connected to the base of zipper strip 8 by means of a stem.
  • FIG. 9 shows a variation wherein the spreader 124 has a circular profile and is connected to the base 110 of zipper strip 8 by means of a stem 126. The diameter of the spreader 124 needs to be greater than the width of the gap between the backs of the hooked elements 98 and 100 of zipper strip 6.
  • FIGS. 10 and 11 show a fourth embodiment of the invention.
  • the string zipper consists of a pair of flangeless zipper strips 6 and 8 that each comprise a pair of profiled closure elements that are angled relative to the backs of the zipper strips.
  • a flangeless zipper strip 6 comprises a base 130 with first and second hooked elements 132 and 134 and a backup element 136 integrally formed therewith and projecting therefrom
  • a flangeless zipper strip 8 comprises a base 138 with first and second hooked elements 140 and 142 and a backup element 144 integrally formed therewith and projecting therefrom.
  • the first and second flangeless zipper strips may have substantially identical profiles, with substantially planar back surfaces 146 and 148 that are mutually parallel.
  • the hook flanges lie in a plane that is inclined (i.e., neither parallel nor perpendicular) relative to the plane of the back surfaces 146 and 148.
  • the hooked elements 132 and 134 of zipper strip 6 define a groove that receives the hooked element 140 of zipper strip 8, while the hooked element 132 and the backup element 136 of the zipper strip 6 define a groove that receives the hooked element 142 of zipper strip 8.
  • the hooked elements 140 and 142 of zipper strip 8 define a groove that receives the hooked element 132 of zipper strip 6, while the hooked element 140 and the backup element 144 of zipper strip 8 define a groove that receives the hooked element 134 of zipper strip 6.
  • the package in accordance with the fourth embodiment further comprises a slider 10' (shown in FIG. 11) having an angled separating finger or plow 150 (meaning that plow 150 is not perpendicular to slider top wall 60) for prying the interlocked zipper strips apart when moved in an opening direction.
  • the sidewalls 56 and 58 squeeze the zipper strips together when the slider is moved in a closing direction.
  • the angle of the plow 150 preferably matches the angle of inclination of the hook flanges.
  • the slider is retained on the string zipper with the aid of retaining projections 64 and 66 projecting from the bottom marginal portions of sidewalls 56 and 58.
  • Respective marginal portions of walls 2a and 2b are respectively joined to the vertical back surfaces 146 and 148 (and not to the slanted back surfaces 150 and 152), such joined marginal portions passing between the slider sidewalls. Joinder to the vertical surfaces only creates more of a hinge effect when the bag film 2a and 2b moves outward, thereby improving resistance to opening the zipper from the inside of the bag.
  • the term "monohook element” means a hook element having a single hook flange; the term “double hook element” means a hook element having two hook flanges directed oppositely; and the term “backup element” means an element not having any hook flanges.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
EP05257131A 2004-11-24 2005-11-18 Reissverschlussausführungen für wiederverschliessbare Verpackungen Withdrawn EP1661817A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/998,108 US20050084183A1 (en) 2003-03-27 2004-11-24 String zipper designs for slider-operated reclosable packaging

Publications (2)

Publication Number Publication Date
EP1661817A2 true EP1661817A2 (de) 2006-05-31
EP1661817A3 EP1661817A3 (de) 2007-08-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05257131A Withdrawn EP1661817A3 (de) 2004-11-24 2005-11-18 Reissverschlussausführungen für wiederverschliessbare Verpackungen

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US (1) US20050084183A1 (de)
EP (1) EP1661817A3 (de)

Families Citing this family (11)

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Publication number Priority date Publication date Assignee Title
US7574781B2 (en) * 2004-04-09 2009-08-18 S.C. Johnson Home Storage, Inc. Closure assembly with slider
CA2548184A1 (en) * 2005-05-26 2006-11-26 S. C. Johnson Home Storage, Inc. Apparatus and method of operatively retaining an actuating member on an elongated closure mechanism
US7461434B2 (en) * 2005-05-26 2008-12-09 S.C. Johnson Home Storage, Inc. Slider for closure assembly
US20060269171A1 (en) * 2005-05-26 2006-11-30 Turvey Robert R Slider with laterally displaceable engagement members
JP4841977B2 (ja) * 2006-03-13 2011-12-21 シーアイ化成株式会社 嵌合具および嵌合具付袋体
US7797802B2 (en) 2007-11-29 2010-09-21 S.C. Johnson & Son, Inc. Actuating member for a closure assembly and method
US8245364B2 (en) * 2008-04-23 2012-08-21 S.C. Johnson & Son, Inc. Closure mechanism having internal projections to decrease slider pull-off
US9850038B2 (en) * 2013-03-15 2017-12-26 Reynolds Presto Products Inc. Child resistant zipper closure for recloseable pouch with double slider and methods
US9776770B2 (en) 2013-03-15 2017-10-03 Reynolds Presto Products Inc. Child resistant zipper closure for recloseable pouch with double slider and methods
JP6271890B2 (ja) * 2013-07-12 2018-01-31 出光ユニテック株式会社 ジッパーテープ付き袋体、および、その製造方法
KR101955120B1 (ko) * 2017-11-10 2019-05-23 중앙대학교 산학협력단 폴리머 소재 및 폴리머기반 섬유강화 복합재료 성형용 인서트 유닛

Citations (3)

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US6220754B1 (en) * 1998-09-09 2001-04-24 The Glad Products Company Closure device and slider
US6575628B1 (en) * 1999-06-10 2003-06-10 The Glad Products Closure device
US20040190798A1 (en) * 2003-03-27 2004-09-30 Steven Ausnit Reclosable packaging having slider-operated string zipper

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US4578813A (en) * 1984-06-11 1986-03-25 Minigrip Incorporated Bag and reclosable separable fastener assembly providing both closing alignment facility and differential separation resistance
US4829641A (en) * 1987-06-22 1989-05-16 First Brands Corporation Enhanced color change interlocking closure strip
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US5509734A (en) * 1994-01-11 1996-04-23 Minigrip, Inc. Wedge activated zipper
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US6306071B1 (en) * 1999-12-16 2001-10-23 Reynolds Consumer Products, Inc. Resealable closure mechanism having a slider device with flexible sidewalls
US7017240B2 (en) * 2001-02-08 2006-03-28 The Glad Products Company Closure device

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Publication number Priority date Publication date Assignee Title
US6220754B1 (en) * 1998-09-09 2001-04-24 The Glad Products Company Closure device and slider
US6575628B1 (en) * 1999-06-10 2003-06-10 The Glad Products Closure device
US20040190798A1 (en) * 2003-03-27 2004-09-30 Steven Ausnit Reclosable packaging having slider-operated string zipper

Also Published As

Publication number Publication date
EP1661817A3 (de) 2007-08-01
US20050084183A1 (en) 2005-04-21

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