[go: up one dir, main page]

EP0576269A1 - Streifenverschluss - Google Patents

Streifenverschluss Download PDF

Info

Publication number
EP0576269A1
EP0576269A1 EP93304909A EP93304909A EP0576269A1 EP 0576269 A1 EP0576269 A1 EP 0576269A1 EP 93304909 A EP93304909 A EP 93304909A EP 93304909 A EP93304909 A EP 93304909A EP 0576269 A1 EP0576269 A1 EP 0576269A1
Authority
EP
European Patent Office
Prior art keywords
strip
bag
closure
limbs
limb
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Withdrawn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
EP93304909A
Other languages
English (en)
French (fr)
Inventor
Michael Anthony c/o Hanlex Limited Cowan
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.)
HANLEX Ltd
Original Assignee
HANLEX Ltd
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 HANLEX Ltd filed Critical HANLEX Ltd
Publication of EP0576269A1 publication Critical patent/EP0576269A1/de
Withdrawn legal-status Critical Current

Links

Images

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
    • B65D33/2541—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
    • 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
    • B65D33/2516—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 comprising tamper-indicating means, e.g. located within the fastener
    • B65D33/2533—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 comprising tamper-indicating means, e.g. located within the fastener the slide fastener being located between the product compartment and the tamper indicating means
    • 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

  • This invention relates to strip closures for sealing bags and the like.
  • Bags for example made of extruded plastic material, often require a means for closing them.
  • a number of different forms of strip closure have been proposed to accomplish this task.
  • GB2017813 shows a typical type of strip closure which is attached to the material of the bag by any appropriate means and can include integral bag and strip combinations obtained by extrusion, as well as adhesive or cohesive connections between the bag and the strip closure.
  • the strip closure includes two strip members which interlock to close the bag.
  • One object of the present invention is to overcome at least some of the disadvantages of currently known systems.
  • a strip closure for sealing bags and the like comprising a first strip member and a second strip member, each member having a base adapted to be attached to a respective inner wall of a bag, the strip members being adapted to interlock one with the other to close the bag, wherein the first member, in cross-section, comprises two limbs extending from its base, each limb including an upwardly extending projection; the second member in cross-section, comprising two limbs extending from its base, each limb including a downwardly extending projection; and wherein the upwardly extending projections engage respectively with the downwardly extending projections such that the strip closure is adapted to be more readily opened from the above than below.
  • This strip closure has the advantage that it is resistant to opening by pressure within the bag and this overcomes, at least to some extent, the problems of the prior art.
  • the first strip member is substantially E shaped in cross section and the middle and lower limb of the E shape form said two limbs of the first strip member; and the second strip member is substantially E shaped in cross section and the upper and middle limbs of the E shape form said two limbs of the second strip member.
  • This feature has the advantage that the E shape member allows easier alignment of the interlocking parts and provides strength to the closure member.
  • the middle limb of the first strip member is adapted to interlock with the upper limb of the second strip member and the lower limb of the first strip member is adapted to interlock with the middle limb of the second stip member.
  • This feature also provides enhanced interlocking and strength to the closure strip.
  • one pair of engaging projections are in the form of hooks and the other pair of engaging projections (for example those on said interlockable upper and middle limbs) are in the form of curved abutment surfaces.
  • the invention also includes a resealable bag having a strip closure as set forth above.
  • the strip closure may be formed integrally with the material of the bag, or may be adhered, fused (cohered) or otherwise fixed thereto.
  • Such a bag may include a closed end adjacent to the strip closure on the other side thereof from the main portion of the bag and which is removable by appropriate means e.g. cut off when the bag is to be opened.
  • the closed end acts as a means for identifying when the bag has been tampered with.
  • the strip closure includes a first strip member 12 and a second strip member 14.
  • Strip member 12 is substantially E shaped in cross section and includes a base portion 15 and an upwardly projecting hook 16 on the lower limb 18 of the E.
  • the middle limb 20 includes an upwardly extending curved abutment surface 22.
  • the second strip member is also substantially E shaped in cross-section.
  • This member 14 includes a base portion 23, a downwardly projecting hook 24 on middle limb 26 of the E shape and a downwardly extending curved abutment surface 28 on the upper limb 30.
  • the abutment surface 28 is configured to correspond to the abutment surface 22.
  • hooks 16 and 24 interlock whilst abutment surfaces 28 and 22 engage with one another.
  • the upper limb 32 of member 12 and the lower limb 34 of member 14 are not essential, but are preferred because they contact the limbs 30 and 32 to assist in maintaining the projections 22, 28 and 16, 24 in engagement.
  • the limbs 32, 34 are tapered towards their extremities to permit insertion of the limbs 18, 20, 24 and 30.
  • the strip members are made of a resilient plastic material such as a mixture of high and low molecular weight polyethylene so that the limbs of the respective members can deform elastically to "snaplock" and achieve the positive interlocking shown in Figure 1.
  • a resilient plastic material such as a mixture of high and low molecular weight polyethylene
  • a bag 40 which may be made of an extruded plastics material, including a strip closure 10 as illustrated in Figure 1, the base portion 15, 23 thereof being fixed to the respective inner walls of the bag 40.
  • the bag may be provided to the consumer either filled or empty and in either state will be heat sealed at the bottom 42 of the bag.
  • a tamper-evident fold 44 is provided at the top of the bag on the other side of the closure member from the main portion of the bag. This tamper evident fold may be removed by the consumer at any time to provide a resealable bag. The absence of the fold 44 prior to intended use indicates that the bag and possibly its contents may have been tampered with.
  • the limb 26 When the closure strips are assembled to close the bag the limb 26 is forced between the limbs 26 and 34.
  • the limb 34 rotates slightly by bending of the base portion 23 and the limb 20 also rotates slightly, a gap being provided between the limbs 20 and 30 for this purpose.
  • the limb 30 is received between the limbs 20 and 32 by slight bending of the base portion 15 and/or of the limbs 30 and 32.
  • the limb 32 engages the outer face of the limb 30 to assist in maintaining engagement of the projections 22, 28.
  • the strip closure 10 When the strip closure 10 is in its interlocked state as shown in all the figures it is capable of being opened from outside the bag and resealed without damage.
  • a force is applied to the strip closure as shown by of arrows A and B it is relatively easy for the base portion 15, 23 to be bent outwards, permitting the projections 22 and 28 to slide across each other.
  • the limbs 20, 30 are slightly spaced from each other to facilitate this.
  • the hook 16 thereby is gradually disengaged from hook 24 until the middle limb 26 of the second strip member pops out of engagement with the first strip member.
  • strip members forming the strip closure may be formed with or applied to the bag in any known manner for example extrusion during fabrication of the bag or by adhesive or by cohesive contact e.g. thermal bonding.
  • the material of the strip members may be coloured or perfumed if required.
  • closure may be used for other applications other than sealable plastic bags.
  • the closure may be adapted for use with any element which requires a sealed edge of one form or another.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
EP93304909A 1992-06-23 1993-06-23 Streifenverschluss Withdrawn EP0576269A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929213296A GB9213296D0 (en) 1992-06-23 1992-06-23 Strip closures
GB9213296 1992-06-23

Publications (1)

Publication Number Publication Date
EP0576269A1 true EP0576269A1 (de) 1993-12-29

Family

ID=10717578

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93304909A Withdrawn EP0576269A1 (de) 1992-06-23 1993-06-23 Streifenverschluss

Country Status (2)

Country Link
EP (1) EP0576269A1 (de)
GB (1) GB9213296D0 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2945796A1 (fr) * 2009-05-19 2010-11-26 Thierry Sanchez Dispositif de retenue demontable en matiere thermoplastique
WO2021187762A1 (ko) * 2020-03-17 2021-09-23 주식회사 지피안 부정 개봉 방지 지퍼 및 그를 포함하는 부정 개봉 방지 지퍼백

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2444620A1 (fr) * 1978-12-22 1980-07-18 Union Carbide Corp Sac a dispositif de fermeture
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
US4619021A (en) * 1984-07-23 1986-10-28 Johnson James R Closure strip to be applied to bags
FR2586650A1 (fr) * 1985-08-30 1987-03-06 Flexico France Sarl Sacs, produit de base, procede et machine pour les fabriquer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2444620A1 (fr) * 1978-12-22 1980-07-18 Union Carbide Corp Sac a dispositif de fermeture
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
US4619021A (en) * 1984-07-23 1986-10-28 Johnson James R Closure strip to be applied to bags
FR2586650A1 (fr) * 1985-08-30 1987-03-06 Flexico France Sarl Sacs, produit de base, procede et machine pour les fabriquer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2945796A1 (fr) * 2009-05-19 2010-11-26 Thierry Sanchez Dispositif de retenue demontable en matiere thermoplastique
WO2021187762A1 (ko) * 2020-03-17 2021-09-23 주식회사 지피안 부정 개봉 방지 지퍼 및 그를 포함하는 부정 개봉 방지 지퍼백

Also Published As

Publication number Publication date
GB9213296D0 (en) 1992-08-05

Similar Documents

Publication Publication Date Title
US6257763B1 (en) Tamper evident zipper slider
US4964739A (en) Flexible container having tamper evident closure
EP0223125B1 (de) Stabiler wiederverschliessbarer Verschluss aus extrudiertem Kunststoff
EP0398732B1 (de) Verschlussband mit profilierten Kupplungselementen
EP1375369B1 (de) Reissverschluss für einen Beutel
US6217215B1 (en) Closure mechanism having a perceptible feedback system
USRE34554E (en) Bags with reclosable plastic fastener having automatic sealing gasket means
EP0456277B1 (de) Wiederverschliessbarer Sack mit einem äusseren, wiederverschliessbaren Reissverschluss und einem inneren, nicht wiederverschliessbaren Verschluss
US6293701B1 (en) Resealable closure mechanism having slider device and methods
EP0136037B1 (de) Behälter mit kniegelenkförmigem Verschluss
US6817763B2 (en) Leak-proof package design including reclosable zipper having slider including a full-length plow
US6306071B1 (en) Resealable closure mechanism having a slider device with flexible sidewalls
JPWO2003022697A1 (ja) スライダー付きプラスチックチャック及びプラスチックチャック付き袋体
EP0770560A1 (de) Kindersicherer Originalitätsverschluss
WO2004043812A1 (en) Leak proof closure mechanism for resealable bag
US20070071367A1 (en) Reclosable package and method
US20050063616A1 (en) Tamper evident plastic bag incorporating a combination zipper and double resealable enclosure and method of manufacturing the same
JP2006526551A (ja) 使い捨て式容器
US20060210201A1 (en) Slider and closure mechanism for closure assembly
US6846108B2 (en) Resealable package having zipper closure including a slider device and retaining notch
US6874937B2 (en) Reclosable packaging having slider-operated zipper with tamper-evident membrane
US7017241B2 (en) Slider having interior ridge to assist zipper opening
EP0576269A1 (de) Streifenverschluss
WO1998002362A3 (en) A tamper-proof package having a temper-indicating seal
US20030202718A1 (en) Resealable package having slider device; and methods

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE FR GB NL

17P Request for examination filed

Effective date: 19940622

17Q First examination report despatched

Effective date: 19951120

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19971127