WO1999016326A1 - High-strength slider for a reclosable bag - Google Patents
High-strength slider for a reclosable bag Download PDFInfo
- Publication number
- WO1999016326A1 WO1999016326A1 PCT/US1998/019909 US9819909W WO9916326A1 WO 1999016326 A1 WO1999016326 A1 WO 1999016326A1 US 9819909 W US9819909 W US 9819909W WO 9916326 A1 WO9916326 A1 WO 9916326A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- slider
- zipper
- reclosable bag
- side walls
- support member
- Prior art date
Links
Classifications
-
- 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
-
- 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
- B65D33/2584—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
-
- 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
- A44B19/267—Sliders for slide fasteners with edges of stringers having uniform section throughout the length thereof
-
- 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 generally relates to plastic sliders for opening and closing zippers of reclosable plastic bags and, more particularly, relates to a high- strength plastic slider that is difficult to separate or pry loose from a zipper on which it has been mounted.
- the zipper typically includes male and female tracks forming respective interlocking profiles.
- the male and female tracks extend along the mouth of the bag and are adapted to be secured in any suitable manner to respective opposing flexible panels of the bag.
- the male and female tracks may be integral marginal portions of these flexible panels or they may be extruded separately and thereafter attached to the flexible panels along the mouth of the bag.
- the slider which is mounted to the zipper, is used to open and close the zipper. When the slider is in a closed position, the profiles are interlocked with each other. In response to moving the slider to an open position, the profiles are disengaged from each other.
- FIGS. 1 and 2 One example of a slider for operating a zipper of a reclosable bag is depicted in FIGS. 1 and 2.
- This slider 10 includes a transverse support member 12, a pair of legs 14a and 14b, and a pair of wings 16a and 16b.
- the pair of legs 14a and 14b extend downward from opposing sides of the support member 12.
- the pair of wings 16a and 16b are hingedly connected to the opposing sides of the support member 12 and, when the slider 10 is mounted to the zipper as shown in FIG. 1, the wings 16a and 16b extend downward from the opposing sides of the support member 12.
- the wings 16a and 16b form respective shoulders 18a and 18b (see FIG. 2).
- FIG. 2 is a bottom view of the slider 10 mounted to the zipper. It can be seen that the gap Di between the inwardly extending shoulders 18a and 18b is smaller than the distance D 2 between the outermost portions of the interlocking profiles 20a and 20b. As a result, the shoulders 18a and 18b effectively maintain the slider 10 in mounting relationship with the zipper. Extremely high forces are required to separate the mounted slider 10 from the zipper. However, such forces could occur if, for example, the contents of the bag are extremely heavy and a user attempts to lift the bag by the slider alone. The present invention makes it more difficult to separate the slider from the zipper.
- An object of the present invention to provide a high-strength plastic slider for a reclosable bag that is difficult to separate or pry loose from a zipper on which it has been mounted.
- the first innermost end of the first shoulder includes a first non-planar section having a first protruding portion and a first recessed portion.
- the first protruding portion juts further inward toward the respective adjacent bag portion than a remainder of the first innermost end of the first shoulder.
- the second innermost end of the second shoulder preferably includes a second non-planar section having a second protruding portion and a second recessed portion. The second protruding portion juts further inward toward the respective adjacent bag portion than a remainder of the second innermost end of the second shoulder.
- the first non-planar section is preferably complementary to the second non-planar section such that the first protruding portion opposes the second recessed portion and the first recessed portion opposes the second protruding portion.
- the first and second non-planar sections effectively strengthen the retention of the slider on the zipper, thereby making it more difficult to remove the slider from the zipper.
- FIG. 1 is an isometric view of a prior art plastic slider mounted to a zipper of a reclosable bag
- FIG. 2 is a bottom view of the slider of FIG. 1 showing shoulders of the slider in engagement with interlocking profiles of the zipper;
- FIG. 3 is an isometric view of a slider embodying the present invention before it has been mounted to a zipper of a reclosable bag;
- FIG. 4 is an isometric view of the slider after it has been mounted to the zipper
- FIG. 5 is a side view of the slider
- FIG. 6 is a section view taken generally along line 6-6 in FIG. 5;
- FIG. 7 is a section view taken generally along line 7-7 in FIG. 5.
- FIG. 3 depicts a plastic slider 30 prior to being folded and mounted to a zipper 32 of a reclosable plastic bag 34
- FIG. 4 depicts the slider 30 after it has been folded and mounted to the zipper 32
- the bag 34 includes first and second opposing panels 34a and 34b fixedly connected to each other along three sides (not shown) to define a receptacle space accessed through a mouth of the bag.
- the zipper 32 extends along the mouth of the bag 34 and includes a female track 36a-b and a male track 38a-b.
- the female track 36a-b includes a female profile 36a and a first depending fin or flange 36b extending downward from the female profile 36a.
- the male track 38a-b includes a male profile 38a and a second depending fin or flange 38b extending downward from the male profile 38a.
- the zipper 32 is formed separately from the panels 34a and 34b of the bag 34, the first and second fins 36b and 38b are thermally fused to inner surfaces of the respective first and second panels 34a and 34b.
- the zipper 32 may be integrally formed with the panels 34a and 34b such that the first fin 36b is integrally formed with the first panel 34a and the second fin 38b is integrally formed with the second panel 34b.
- the slider 30 is slidably mounted to the zipper 32 for movement between a closed position and an open position.
- FIG. 3 illustrates the slider 30 prior to being mounted on the zipper 32
- FIG. 4 illustrates the slider 30 after it has been mounted to the zipper 32.
- the slider 30 in its assembled position shown in FIG. 4 is used to engage and disengage the female and male profiles 36a and 38a of the zipper 32.
- the slider 30 has an opening end and a closing end.
- the slider 30 is wider at the opening end to allow separation of the female and male profiles 36a and 38a.
- the slider 30 is sufficiently narrow at the closing end to press the female and male profiles 36a and 38a into an interlocking relationship as the slider 30 is moved in a zipper closing direction.
- the slider 30 is preferably composed of a single piece of molded plastic such as polycarbonate, polyester, nylon, polypropylene, polystyrene, Delrin or ABS.
- the assembled slider 30 is generally in the form of an inverted U-shaped member comprising a transverse support member 40 and a pair of side walls 42 and 44 extending downward from opposing sides of the support member 40.
- a separating finger 45 extends downward from the transverse support member 40 and, when the slider 30 is mounted to the zipper 32, the separating finger 45 disengages the female and male profiles 36a and 38a as the slider 30 is moved in a zipper opening direction.
- the side walls 42 and 44 of the slider 30 include respective legs 46 and 48 extending downward from the opposing sides of the support member 40.
- the side walls 42 and 44 also include respective wings 50 and 52 hingedly connected to the opposing sides of the support member 40. Prior to mounting the slider 30 to the zipper 32, the wings 50 and 52 are in the spread position depicted in FIG. 3.
- the slider 30 To mount the slider 30 to the zipper 32, the slider 30 is placed over the zipper 32 with the separating finger 45 positioned between the female and male profiles 36a and 38a and the legs 46 and 48 positioned on opposite sides of the zipper 32.
- the zipper track 36a-b is disposed between the separating finger 45 and the slider leg 46
- the zipper track 38a-b is disposed between the separating finger 45 and the slider leg 48.
- the slider wings 50 and 52 are rotated downward about "living" hinges connecting the wings 50 and 52 to the opposite sides of the transverse support member 40.
- the wings 50 and 52 form central openings to receive the respective legs 46 and 48 when the wings 50 and 52 are folded downward.
- the wings 50 and 52 are secured in their downward position depicted in FIG.
- the wings 50 and 52 form respective flexible tongue latches 54 and 56 that engage the lowermost ends of the respective legs 46 and 48 to maintain the wings 50 and 52 in the downward position. Further details concerning the hinged structure of the wings 50 and 52 and the compression-type latch may be obtained from U.S. Patent No. 5,448,808, which is incorporated herein by reference in its entirety.
- the slider 30 with the compression-type latch it is contemplated that the slider could be made of a single solid piece of molded plastic without hinges.
- the transverse support member 40 is adapted to move along the upper edges of the zipper profiles 36a and 38a.
- the wings 50 and 52 form respective first and second shoulders 58 and 60.
- the shoulders 58 and 60 extend inwardly toward each other and are positioned beneath the respective zipper profiles 36a and 38a.
- the shoulders 58 and 60 include respective innermost ends 62 and 64 that face and contact the respective bag panels 34a and 34b (or zipper fins 36b and 38b) below the respective interlocking profiles 36a and 38a.
- the innermost end 62 of the shoulder 58 includes a non- planar or undulating section having a protruding/convex portion 62a and a recessed/concave portion 62b.
- the protruding portion 62a juts further inward toward the adjacent zipper fin 36b than a remainder 62c of the innermost end 62 of the shoulder 58.
- the recessed portion 62b juts further away from the zipper fin 36b than the remainder 62c of the innermost end 62 of the shoulder 58.
- the innermost end 64 of the shoulder 60 includes a non-planar or undulating section having a protruding/convex portion 64a and a recessed/concave portion 64b.
- the protruding portion 64a juts further inward toward the adjacent zipper fin 38b than a remainder 64c of the innermost end 64 of the shoulder 60.
- the recessed portion 64b juts further away from the zipper fin 38b than the remainder 64c of the innermost end 64 of the shoulder 60.
- the non-planar section 62a-b of the innermost end 62 of the shoulder 58 is complementary to the non-planar section 64a-b of the innermost end 64 of the shoulder 60. Therefore, the protruding portion 62a opposes the recessed portion 64b, and the recessed portion 62b opposes the protruding portion 64a.
- the non-planar sections 62a-b and 64a-b effectively increase the retention of the slider 30 on the zipper 32, thereby making it more difficult to remove the slider 30 from the zipper 32. As shown in FIGS.
- the shoulders 58 and 60 are positioned beneath the zipper profiles 36a and 38a, and the zipper fins 36b and 38b and upper portions of the bag panels 34a and 34b are captured between the shoulders 58 and 60.
- the gap D] between the inwardly extending shoulders 58 and 60 is smaller than the distance D between the outermost portions of the interlocking profiles 36a and 38a.
- the non-planar sections 62a-b and 64a-b create an S-shaped tortuous path through the gap Dj that must be followed by the zipper fins 36b and 38b and the upper portions of the bag panels 34a and 34b.
- the protruding portions 62a and 64a preferably extend beyond a longitudinal mid-plane M dividing the slider 30 in half.
- the foregoing slider construction allows the slider 30 to essentially behave like a "zero" gap part, being very snug and very difficult to pry off the zipper 32. It is contemplated that the tortuous path noted above can be created only one protruding portion (akin to portion 62a or 64a) or by more than one protruding portion.
- the slider 30 is not easily disassembled once it is installed on the zipper 32 as shown in FIG. 4.
- the legs 46 and 48 and wings 50 and 52 of the slider 30 are preferably ribbed as shown in FIGS. 4 and 5.
- the leg 46 forms a plurality of adjacent vertical reinforcement ribs 66
- the leg 48 forms a plurality of adjacent vertical reinforcement ribs 68 (hidden in FIG. 5).
- the ribs 66 and 68 are generally semicircular in cross-section and extend from an upper end to a lower end of the respective legs.
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000513476A JP4371574B2 (en) | 1997-09-26 | 1998-09-23 | Slider over a plastic zipper with a predetermined profile that can be resealed |
EP98950655A EP1017293B1 (en) | 1997-09-26 | 1998-09-23 | High-strength slider for a reclosable bag |
AT98950655T ATE261675T1 (en) | 1997-09-26 | 1998-09-23 | HIGH-STRENGTH SLIDE FOR RESEALABLE HANDLE |
AU96642/98A AU727184B2 (en) | 1997-09-26 | 1998-09-23 | High-strength slider for a reclosable bag |
DE69822486T DE69822486T2 (en) | 1997-09-26 | 1998-09-23 | HIGH-STRENGTH SLIDER FOR RE-LOCKABLE BRACKET |
KR1020007003233A KR20010024313A (en) | 1997-09-26 | 1998-09-23 | High strength slider for a reclosable bag |
CA002305642A CA2305642C (en) | 1997-09-26 | 1998-09-23 | High-strength slider for a reclosable bag |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/938,047 US5896627A (en) | 1997-09-26 | 1997-09-26 | High-strength slider for a reclosable bag |
US08/938,047 | 1997-09-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999016326A1 true WO1999016326A1 (en) | 1999-04-08 |
Family
ID=25470782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1998/019909 WO1999016326A1 (en) | 1997-09-26 | 1998-09-23 | High-strength slider for a reclosable bag |
Country Status (10)
Country | Link |
---|---|
US (1) | US5896627A (en) |
EP (1) | EP1017293B1 (en) |
JP (1) | JP4371574B2 (en) |
KR (1) | KR20010024313A (en) |
AT (1) | ATE261675T1 (en) |
AU (1) | AU727184B2 (en) |
CA (1) | CA2305642C (en) |
DE (1) | DE69822486T2 (en) |
ES (1) | ES2217590T3 (en) |
WO (1) | WO1999016326A1 (en) |
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US5070583A (en) * | 1990-03-07 | 1991-12-10 | Mobil Oil Corporation | Gull wing zipper slider |
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US5161286A (en) * | 1991-03-22 | 1992-11-10 | Mobil Oil Corporation | End clamp stops for plastic reclosable fastener |
US5189764A (en) * | 1991-03-22 | 1993-03-02 | Mobil Oil Corporation | Plastic reclosable fastener with structure for retaining slider in closed position |
US5131121A (en) * | 1991-03-22 | 1992-07-21 | Mobil Oil Corporation | Protruding end stops for plastic reclosable fastener |
US5088971A (en) * | 1991-03-22 | 1992-02-18 | Mobil Oil Corporation | Method of making protruding end stops for plastic reclosable fastener |
US5067208A (en) * | 1991-03-22 | 1991-11-26 | Mobil Oil Corporation | Plastic reclosable fastener with self-locking slider |
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US5448807A (en) * | 1993-06-10 | 1995-09-12 | Mobil Oil Corporation | Plastic end clips fused to plastic zipper |
US5283932A (en) * | 1993-06-10 | 1994-02-08 | Mobil Oil Corporation | Flexible plastic zipper slider with rigidizing structure for assembly with profiled plastic zipper |
US5426830A (en) * | 1993-06-10 | 1995-06-27 | Mobil Oil Corporation | Axial assembly of multi-part slider on zipper |
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US5713669A (en) * | 1996-12-05 | 1998-02-03 | Tenneco Packaging | Plastic bag with zipper slider captured in pocket |
-
1997
- 1997-09-26 US US08/938,047 patent/US5896627A/en not_active Expired - Lifetime
-
1998
- 1998-09-23 WO PCT/US1998/019909 patent/WO1999016326A1/en active IP Right Grant
- 1998-09-23 AT AT98950655T patent/ATE261675T1/en not_active IP Right Cessation
- 1998-09-23 KR KR1020007003233A patent/KR20010024313A/en not_active Application Discontinuation
- 1998-09-23 JP JP2000513476A patent/JP4371574B2/en not_active Expired - Fee Related
- 1998-09-23 EP EP98950655A patent/EP1017293B1/en not_active Expired - Lifetime
- 1998-09-23 DE DE69822486T patent/DE69822486T2/en not_active Expired - Lifetime
- 1998-09-23 CA CA002305642A patent/CA2305642C/en not_active Expired - Lifetime
- 1998-09-23 ES ES98950655T patent/ES2217590T3/en not_active Expired - Lifetime
- 1998-09-23 AU AU96642/98A patent/AU727184B2/en not_active Expired
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US4262395A (en) * | 1978-03-09 | 1981-04-21 | Hans Bud | Sliding clasp fastening means |
US5063644A (en) * | 1991-03-22 | 1991-11-12 | Mobil Oil Corporation | Foldable zipper slider with compression-type latch |
US5517733A (en) * | 1994-12-16 | 1996-05-21 | Chao-Mu Chou | Non-pinlock type slide for zip fasteners |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002058499A1 (en) * | 2001-01-25 | 2002-08-01 | International Consolidated Business Pty Ltd | Slider for a plastic bag |
EP1565379A2 (en) * | 2002-08-20 | 2005-08-24 | Cti Industries Corporation | Slider with arm |
EP1565379A4 (en) * | 2002-08-20 | 2009-05-27 | Cti Ind Corp | Slider with arm |
EP2204331A1 (en) * | 2009-01-05 | 2010-07-07 | S2F Flexico | Reinforced slider for a bag having closure profiles |
FR2940751A1 (en) * | 2009-01-05 | 2010-07-09 | S2F Flexico | CURRENT FOR ACTUATING RIGIDIFIER BAR PROFILES |
US8332993B2 (en) | 2009-01-05 | 2012-12-18 | S2F Flexico | Slider for actuating profiled shapes with stiffening bars |
Also Published As
Publication number | Publication date |
---|---|
EP1017293A1 (en) | 2000-07-12 |
AU727184B2 (en) | 2000-12-07 |
EP1017293B1 (en) | 2004-03-17 |
CA2305642A1 (en) | 1999-04-08 |
CA2305642C (en) | 2003-01-07 |
DE69822486T2 (en) | 2004-07-29 |
US5896627A (en) | 1999-04-27 |
ES2217590T3 (en) | 2004-11-01 |
JP4371574B2 (en) | 2009-11-25 |
KR20010024313A (en) | 2001-03-26 |
JP2003522547A (en) | 2003-07-29 |
DE69822486D1 (en) | 2004-04-22 |
AU9664298A (en) | 1999-04-23 |
EP1017293A4 (en) | 2001-01-10 |
ATE261675T1 (en) | 2004-04-15 |
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