EP0505069B1 - Fermeture réutilisable en matière plastique avec dispositif de retenue du curseur en position fermée - Google Patents
Fermeture réutilisable en matière plastique avec dispositif de retenue du curseur en position fermée Download PDFInfo
- 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
Links
- 239000004033 plastic Substances 0.000 title claims abstract description 25
- 229920003023 plastic Polymers 0.000 title claims abstract description 25
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 15
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 15
- 229920002457 flexible plastic Polymers 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims abstract description 4
- 230000000295 complement effect Effects 0.000 claims description 5
- 238000007373 indentation Methods 0.000 description 4
- -1 polyethylene Polymers 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920004943 Delrin® Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
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)
- Slide Fasteners (AREA)
- Bag Frames (AREA)
- Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
- Closures For Containers (AREA)
- Cartons (AREA)
Claims (5)
- Structure de fermeture pour un sachet thermoplastique (B), comprenant un couple de bandes flexibles (14, 15) en matière plastique, ayant des moyens de fermeture séparables s'étendant sur toute sa longueur, comprenant des éléments d'interverrouillage (16, 17) à profil mâle et femelle, sur les bandes (14, 15) respectives, lesdits éléments mâle et femelle (16, 17) ayant des formes de section transversale complémentaires, de manière qu'il soit fermé en pressant ensemble les éléments (16, 17), un curseur (10) situé à califourchon sur lesdites bandes (14, 15) pour fermer les éléments mâle et femelle (16, 17) refermables, et des moyens de verrouillage pour obtenir ledit curseur (10) atteint l'extrémité fermée de sa course, le long desdites bandes (14, 15) de matière plastique, caractérisé en ce que lesdits moyens de verrouillage comprennent une structure de détente coopérante sur ledit curseur et au moins l'une desdites bandes (14, 15) de matière plastique, ladite structure de détente étant espacée desdits éléments d'interverrouillage mâle et femelle (16, 17) et pouvant s'engager lorsque ledit curseur (10) se trouve à l'extrémité fermée de sa course, sur lesdites bandes (14, 15) de matière plastique.
- Stucture de fermeture selon la revendication 1, dans laquelle ladite structure de détente coopérante comprend une structure d'entaille (21a, 22a) sur ledit curseur (10) et une structure de saillie (14p, 15p) coopérantes sur au moins l'une desdites bandes (14, 15) de matière plastique.
- Structure de fermeture selon la revendication 2, dans laquelle un couple desdites structures d'entaille (21a, 22a) sont prévues sur ledit curseur (10) pour coopérer avec les structures de saillie (14p, 15p), sur lesdites deux bandes (14, 15) de matière plastique.
- Structure de fermeture selon la revendication 1, 2 ou 3, dans laquelle ledit curseur (10) est réalisé en matière plastique.
- Sachet thermoplastique (B) comprenant un couple de parois latérales (12, 13) se faisant face, définissant une embouchure ouverte à une extrémité du sachet et une structure de fermeture selon l'une quelconque des revendications précédentes disposée le long de l'embouchure pour ouvrir et fermer ladite embouchure.
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 (fr) | 1992-09-23 |
EP0505069B1 true EP0505069B1 (fr) | 1996-10-30 |
Family
ID=24707415
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92301998A Expired - Lifetime EP0505069B1 (fr) | 1991-03-22 | 1992-03-09 | Fermeture réutilisable en matière plastique avec dispositif de retenue du curseur en position fermée |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0505069B1 (fr) |
JP (1) | JP3009967B2 (fr) |
KR (1) | KR100230494B1 (fr) |
AT (1) | ATE144688T1 (fr) |
AU (1) | AU648149B2 (fr) |
CA (1) | CA2063060C (fr) |
DE (1) | DE69214862T2 (fr) |
DK (1) | DK0505069T3 (fr) |
ES (1) | ES2096026T3 (fr) |
GR (1) | GR3021987T3 (fr) |
TW (1) | TW197991B (fr) |
Families Citing this family (11)
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 |
PT1395138E (pt) * | 2001-06-15 | 2005-02-28 | S C Johnson Home Storage Inc | Dispositivo de fecho passivel de tornar a fechar com indicador da posicao fechado do cursor |
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 |
JP6804987B2 (ja) * | 2015-06-19 | 2020-12-23 | エス.シー. ジョンソン アンド サン、インコーポレイテッド | デテントを備えるスライダ袋 |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2144100A5 (fr) * | 1971-06-30 | 1973-02-09 | Flexico France Sarl |
Family Cites Families (3)
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 |
-
1992
- 1992-03-09 EP EP92301998A patent/EP0505069B1/fr not_active Expired - Lifetime
- 1992-03-09 ES ES92301998T patent/ES2096026T3/es not_active Expired - Lifetime
- 1992-03-09 AT AT92301998T patent/ATE144688T1/de not_active IP Right Cessation
- 1992-03-09 DK DK92301998.8T patent/DK0505069T3/da active
- 1992-03-09 DE DE69214862T patent/DE69214862T2/de not_active Expired - Fee Related
- 1992-03-13 AU AU12895/92A patent/AU648149B2/en not_active Ceased
- 1992-03-13 CA CA002063060A patent/CA2063060C/fr not_active Expired - Fee Related
- 1992-03-21 KR KR1019920004691A patent/KR100230494B1/ko not_active IP Right Cessation
- 1992-03-23 JP JP4065131A patent/JP3009967B2/ja not_active Expired - Fee Related
- 1992-04-06 TW TW081102583A patent/TW197991B/zh active
-
1996
- 1996-12-11 GR GR960403423T patent/GR3021987T3/el unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2144100A5 (fr) * | 1971-06-30 | 1973-02-09 | Flexico France Sarl |
Also Published As
Publication number | Publication date |
---|---|
CA2063060C (fr) | 2001-10-30 |
ATE144688T1 (de) | 1996-11-15 |
TW197991B (fr) | 1993-01-11 |
AU1289592A (en) | 1992-09-24 |
CA2063060A1 (fr) | 1992-09-23 |
AU648149B2 (en) | 1994-04-14 |
JPH0591911A (ja) | 1993-04-16 |
EP0505069A1 (fr) | 1992-09-23 |
DK0505069T3 (da) | 1997-03-03 |
DE69214862D1 (de) | 1996-12-05 |
ES2096026T3 (es) | 1997-03-01 |
DE69214862T2 (de) | 1997-02-27 |
JP3009967B2 (ja) | 2000-02-14 |
KR920017593A (ko) | 1992-10-21 |
KR100230494B1 (ko) | 1999-11-15 |
GR3021987T3 (en) | 1997-03-31 |
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