EP0505069B1 - Wiederverschliessbares Kunststoff-Befestigungselement mit einer Struktur um den Reissverschluss verschlossen zu erhalten - Google Patents

Wiederverschliessbares Kunststoff-Befestigungselement mit einer Struktur um den Reissverschluss verschlossen zu erhalten Download PDF

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Publication number
EP0505069B1
EP0505069B1 EP92301998A EP92301998A EP0505069B1 EP 0505069 B1 EP0505069 B1 EP 0505069B1 EP 92301998 A EP92301998 A EP 92301998A EP 92301998 A EP92301998 A EP 92301998A EP 0505069 B1 EP0505069 B1 EP 0505069B1
Authority
EP
European Patent Office
Prior art keywords
slider
fastener
strips
elements
male
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
EP92301998A
Other languages
English (en)
French (fr)
Other versions
EP0505069A1 (de
Inventor
Fox John Herrington
Eric Anthony St. Phillips
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.)
Pactiv LLC
Original Assignee
Tenneco Plastics Co
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 Tenneco Plastics Co filed Critical Tenneco Plastics Co
Publication of EP0505069A1 publication Critical patent/EP0505069A1/de
Application granted granted Critical
Publication of EP0505069B1 publication Critical patent/EP0505069B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/24—Details
    • A44B19/26—Sliders
    • A44B19/30—Sliders with means for locking in position
    • 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
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/10—Slide fasteners with a one-piece interlocking member on each stringer tape
    • A44B19/16—Interlocking member having uniform section throughout the length of the stringer

Definitions

  • the present invention relates to a fastener structure for a thermoplastic bag.
  • the invention particularly relates to fastener structure of the type known as zippers.
  • a conventional metal zipper has a tab on its slider. Folding down the tab locks the zipper so it will not unzip. Such a feature has not hitherto been provided on a plastic zipper, even though plastic zippers with sliders are well known in the art.
  • Plastic zippers have profiles and include a pair of male and female fastener elements in the form of reclosable interlocking rib and groove elements with a slider for opening and closing the rib and groove elements.
  • a pair of these male and female fastener elements extend along the mouth of the bag, the male and female elements being adapted to be secured in any suitable manner to the flexible walls of the thermoplastic film bag.
  • the elements may be integral marginal portions of such walls or they may be extruded separately and thereafter attached to the walls along the mouth of the bag.
  • a method of continuously providing such a fastener on the thermoplastic film is disclosed in US-A-3462332.
  • the sliders for opening or closing the reclosable fasteners are adapted to be assembled with the zipper by an endwise assembly or by a relative transverse manoeuvre.
  • An example of a fastener with an endwise assembly of the slider is disclosed in US-A-3259951.
  • the sliders are formed of multiple parts and assembled on the zipper. The assembly may be simplified if the slider is formed of one part and the sides are foldable into position when assembled on the zipper.
  • FR-A-2144100 discloses a fastener structure for a thermoplastic bag, comprising a pair of flexible plastic strips having separable fastener means extending along the length thereof comprising reclosable interlocking male and female profile elements.
  • a slider is also provided for closing the elements; and means is provided to retain the slider in the closed position.
  • a fastener structure for a thermoplastic bag comprising a pair of flexible plastic strips having separable fastener means extending along the length thereof comprising reclosable interlocking male and female profile elements on the respective strips, said male and female elements having complementary cross sectional shapes such that they are closed by pressing the elements together, a straddling slider on said strips for closing the reclosable male and female elements, and latching means for retaining said slider in closed position when said slider reaches the closed end of its travel along said plastic strips said latching means comprising a cooperating detent structure on said slider and at least one of said plastic strips, said detent structure being spaced from said male and female interlocking elements and being engageable when said slider is at the closed end of its travel on said plastic strips.
  • said cooperating detent structure comprises a notched structure on said slider and cooperating protrusion structure on said at least one plastic strip.
  • a pair of said notched structures are provided on said slider for cooperating with protrusion structures on both of said plastic strips.
  • the slider is made of plastic.
  • thermoplastic bag comprising a pair of facing sidewalls defining an open mouth at one end of the bag, and a fastener structure as described above disposed along the mouth for opening and closing said mouth.
  • a fastener structure comprising a plastic slider 10 and a profiled plastic reclosable fastener 11.
  • the slider 10 and fastener 11 are particularly suited for thermoplastic bags and the like and the slider 10 has been illustrated in Figs. 1 and 2 assembled on the fastener 11 at the top edge or mouth of a thermoplastic bag B.
  • the bag B may be made from any suitable thermoplastic film such for example as polyethylene or polypropylene or equivalent material.
  • the bag B is formed by a pair of flexible plastic sheets 12 and 13 joined at the bottom and having a top edge, with a pair of flexible plastic strips 14 and 15 having separable plastic means extending along the length thereof comprising reclosable interlocking male and female profile elements in the form of rib and groove elements 16 and 17 on the respective strips to form the fastener 11.
  • the strips 14 and 15 may be extruded separately and attached to the respective sides of the bag mouth or the strips 14 and 15 may be extruded integral with the sides of the bag mouth.
  • the strips 14 and 15 include profiled tracks 18 and 19 extending along the length thereof parallel to the rib and groove elements 16 and 17 and the rib and groove elements, 16, 17 have complementary cross-sectional shapes such that they are closed by pressing the elements together with the slider 10.
  • cross-sectional shapes of the interlocking male and female elements having the rib and groove profiles 16 and 17 may be of any type but preferably are of the type disclosed in WO-91/13564.
  • the slider 10 straddles the fastener 11 at the top of the bag B and is adapted for opening or closing the reclosable fastener element 16 or 17 of the fastener 11.
  • the slider 10 is formed from a single piece of moulded plastic comprising a separator finger 9, Fig. 2, and interlocking complementary structure moving along the fastener 11.
  • the slider 10 may be moulded from any suitable plastic such for example as nylon, polypropylene, polystyrene, Delrin or ABS.
  • the complementary structure comprises an inverted U-shaped member including a transverse supported member or body 20 from which the separator finger 9 depends.
  • the body 20 is itself U-shaped and includes two integral spaced depending legs 20a and 20b (not shown).
  • the finger 9 is positioned between the legs 20a, 20b.
  • the body 20 is adapted to move along the top edges of the tracks 18 and 19 with the legs 20a, 20b straddling these elements and the finger 9 positioned between the tracks 18 and 19.
  • the body 20 also includes a pair of hinged "wings" or side walls 21 or 22 that can be folded down into their final position.
  • the wings 21 and 22 are hinged to the main slider body 20 by means of hinge structure located at the opposite ends of the legs 20a and 20b.
  • the wings 21 and 22 have central openings into which the legs 20a, 20b extend and the wings 21 and 22 are folded down into their final position as shown in Fig. 1.
  • a compression-type latching mechanism (not shown) locks the sidewalls 21 and 22 in folded position with the depending legs 20a and 20b.
  • the shoulders 21c and 22c on the sidewalls 21 and 22 are positioned beneath the bottom of the fastener elements 16 and 17 to prevent the slider 10 from being lifted off the fastener 11.
  • the foldable depending sidewalls 21 and 22 extend from an opening end 10a of the slider 10 to a closing end 10b.
  • the sidewalls 21 and 22 and the depending legs 20a and 20b are spaced wider apart at the opening end 10a of the slider 10 to permit the separation of the rib and groove elements 16 and 17 by the finger 9 engaging the tracks 18 and 19 and are spaced sufficiently close together at the closing and 10b of the slider to press the rib and groove elements 16 and 17 into interlocking relationship as the slider 10 is moved in a fastener closing direction from the position in Fig. 1 to the closed position in Fig. 2.
  • the extruded strips 14 and 15 have been provided with protrusions 14p and 15p which extend outwardly from the surface of the strips 14 and 15.
  • the protrusions 14p and 15p are shaped to be received within the corresponding notches or indentations 21n and 22n formed in the lower portions of the sidewalls 21 and 22 of the slider 10.
  • the notches 21n and 22n are formed in the opposed vertical surfaces of the shoulders 21c and 22c.
  • the ends of the notches 21n and 22n are flared at the opening end 10a of the slider 10, Fig. 3, to provide a funnel shaped opening to permit the protrusions 14p and 15p to enter the notches 21n and 22n as the slider 10 moves to the closed end of the fastener 11, Figs. 2 and 3.
  • the protrusions 14p and 15p are spaced with respect to the closed end of the fastener 11 so that when the slider 10 reaches the end of its travel on the fastener 11 in the closing direction, the protrusions 14p and 15p will be received in the notches or indentations 21n and 22n. This gives the user of the bag assurance that the bag is closed with certainty. If the fastener 11 is not provided with end stops the cooperating protrusions and notches will serve to keep the slider from going past the closed end of the fastener and coming off of the bag.
  • the opposite ends of the fastener 11 may be provided with end stops 30 formed from the material at the opposite ends of the fastener 11 and protrude from the fastener a distance adequate to engage the slider 10 to prevent the slider from going past the respective ends of the fastener and coming off of the bag.
  • end stops 30 When the fastener 11 is provided with end stops 30 the protrusions 14p and 15p are spaced with respect to the closed end stop 30 of the fastener 11 so that when the slider 10 reaches the end of its travel on the fastener 11 in the closing direction, the protrusions 14p and 15p will be received in the notches or indentations 21n or 22n.
  • cooperating detent structure While one type of cooperating detent structure has been described and illustrated in respect to the slider and the plastic strips, it is to be understood that other cooperating detent structure may be utilised for performing the same function, namely providing the user of the bag with the feel of a secure closure.
  • the protrusions and indentations disclosed herein for providing the cooperating detent structure may be positioned at other locations than those shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Slide Fasteners (AREA)
  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
  • Closures For Containers (AREA)
  • Cartons (AREA)

Claims (5)

  1. Verschlußaufbau für einen Beutel (B) aus thermoplastischem Kunststoff, mit einem flexiblen Kunststoffleistenpaar (14, 15), das eine trennbare Verschlußeinrichtung aufweist die sich entlang dessen Länge erstreckt und wiederverschließbare Steck- und Aufnahmeprofilelemente (16, 17) an den entsprechenden Leisten (14, 15) umfaßt, wobei die Steck- und Aufnahmeprofilelemente (16, 17) eine komplementäre Querschnittsform derart aufweisen, daß sie durch Zusammenpressen dieser Elemente (16, 17) geschlossen werden, einem Schieber (10), der in gespreizt aufsitzender Weise auf den Leisten (14, 15) zum Schließen der wiederverschließbaren Steck- und Aufnahmeprofilelemente (16, 17) aufsitzt, und Einrichtungen zum Halten des Schiebers (10) in geschlossener Stellung, wenn der Schieber (10) das geschlossene Ende seines Wegs entlang der Kunststoffleisten (14, 15) erreicht,
    dadurch gekennzeichnet,
    daß die Einrichtungen einen zusammenwirkenden Hakenaufbau an dem Schieber und zumindest an einem der Kunststoffleisten (14, 15) umfassen, wobei der Hakenaufbau von den Steck- und Aufnahmeprofilelementen (16, 17) beabstandet ist und in Eingriff bringbar ist, wenn der Schieber (10) an seinem geschlossenen Ende seines Weges auf den Kunststoffleisten (14, 15) sich befindet.
  2. Verschlußaufbau gemäß Anspruch 1, worin der zusammenwirkende Hakenaufbau einen Aussparungsaufbau (21n, 22n) an dem Schieber (10) aufweist und zusammenwirkende Vorsprünge (14p, 15p) an zumindestens einer der Kunststoffleisten (14, 15) umfaßt.
  3. Verschlußaufbau gemäß Anspruch 2, worin ein Paar von den Aussparungen (21n, 22n) an dem Schieber (10) zum Zusammenwirken mit Vorsprüngen (14p, 15p) an beiden Kunststoffleisten (14, 15) vorgesehen ist.
  4. Verschlußaufbau gemäß Anspruch 1, 2 oder 3, worin der Schieber (10) aus Kunststoff hergestellt ist.
  5. Beutel (B) aus thermoplastischem Kunststoff mit einem Paar einander zugewandter Seitenwände (12, 13), die einen Öffnungsmund an einem Ende des Beutels begrenzen, und einem Verschlußaufbau gemäß einem der vorangegangenen Ansprüche, der entlang des Verschlußmundes zum Öffnen und Schließen des Verschlußmundes angeordnet ist.
EP92301998A 1991-03-22 1992-03-09 Wiederverschliessbares Kunststoff-Befestigungselement mit einer Struktur um den Reissverschluss verschlossen zu erhalten Expired - Lifetime EP0505069B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US67464891A 1991-03-22 1991-03-22
US674648 1991-03-22

Publications (2)

Publication Number Publication Date
EP0505069A1 EP0505069A1 (de) 1992-09-23
EP0505069B1 true EP0505069B1 (de) 1996-10-30

Family

ID=24707415

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92301998A Expired - Lifetime EP0505069B1 (de) 1991-03-22 1992-03-09 Wiederverschliessbares Kunststoff-Befestigungselement mit einer Struktur um den Reissverschluss verschlossen zu erhalten

Country Status (11)

Country Link
EP (1) EP0505069B1 (de)
JP (1) JP3009967B2 (de)
KR (1) KR100230494B1 (de)
AT (1) ATE144688T1 (de)
AU (1) AU648149B2 (de)
CA (1) CA2063060C (de)
DE (1) DE69214862T2 (de)
DK (1) DK0505069T3 (de)
ES (1) ES2096026T3 (de)
GR (1) GR3021987T3 (de)
TW (1) TW197991B (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5442837A (en) * 1994-06-20 1995-08-22 Mobil Oil Corporation Integrated end stops for zipper slider
US6376035B1 (en) 1996-12-05 2002-04-23 Pactiv Corporation Zipper fins for plastic bags
JP3096438B2 (ja) * 1997-03-06 2000-10-10 株式会社リヒトラブ 開閉具
US6361213B2 (en) * 1999-04-22 2002-03-26 The Procter & Gamble Company Sliding mechanical closure with consumer-releasable motion-limiting features
KR20040029999A (ko) * 2001-06-15 2004-04-08 에스 시이 죤슨 홈 스토리즈 인코포레이티드 슬라이더 밀폐 위치 표시부를 갖는 재밀폐가능한 패스너어셈블리
US7147374B2 (en) * 2002-12-26 2006-12-12 Ajootian Janice K Combination cosmetic purse and display package
GB2455988B (en) * 2007-12-24 2012-10-31 Ykk Europ Ltd Zip fastener with slider lock
JP6596775B2 (ja) 2014-06-20 2019-10-30 エス．シー． ジョンソン アンド サン、インコーポレイテッド マルチジッパースライダ袋
WO2016204812A1 (en) * 2015-06-19 2016-12-22 S.C. Johnson & Son, Inc. Slider bag with a detent
JP6677978B2 (ja) * 2015-06-29 2020-04-08 株式会社Uacj スライドファスナ付き包装袋
JP2019209199A (ja) * 2019-09-20 2019-12-12 株式会社Uacj スライドファスナ付き包装袋

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2144100A5 (de) * 1971-06-30 1973-02-09 Flexico France Sarl

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2701903A (en) * 1946-02-01 1955-02-15 Harvey L Williams Slide fastener
US3259951A (en) * 1964-07-15 1966-07-12 Merle A Zimmerman Slide fastener
US5020194A (en) * 1990-03-07 1991-06-04 Mobil Oil Corporation Leakproof zipper with slider

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2144100A5 (de) * 1971-06-30 1973-02-09 Flexico France Sarl

Also Published As

Publication number Publication date
TW197991B (de) 1993-01-11
DE69214862D1 (de) 1996-12-05
DK0505069T3 (da) 1997-03-03
ES2096026T3 (es) 1997-03-01
EP0505069A1 (de) 1992-09-23
JP3009967B2 (ja) 2000-02-14
AU1289592A (en) 1992-09-24
DE69214862T2 (de) 1997-02-27
GR3021987T3 (en) 1997-03-31
CA2063060A1 (en) 1992-09-23
CA2063060C (en) 2001-10-30
ATE144688T1 (de) 1996-11-15
KR920017593A (ko) 1992-10-21
AU648149B2 (en) 1994-04-14
JPH0591911A (ja) 1993-04-16
KR100230494B1 (ko) 1999-11-15

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