EP0925229B1 - Sachet comprenant un dispositif de fermeture forme de profiles complementaires et dispositif de fermeture a cet effet - Google Patents
Sachet comprenant un dispositif de fermeture forme de profiles complementaires et dispositif de fermeture a cet effet Download PDFInfo
- Publication number
- EP0925229B1 EP0925229B1 EP98932203A EP98932203A EP0925229B1 EP 0925229 B1 EP0925229 B1 EP 0925229B1 EP 98932203 A EP98932203 A EP 98932203A EP 98932203 A EP98932203 A EP 98932203A EP 0925229 B1 EP0925229 B1 EP 0925229B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- base
- closure
- ribs
- bag
- strip
- 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
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
- B65D33/255—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 being provided with special visual, audible or tactile indicating means, e.g. indicating proper engagement
-
- 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
Definitions
- the present invention is in the field of sachets comprising plastic closing devices. More in particular, the invention relates to fixed closure devices by welding on a bag wall.
- each profile includes a base intended to be fixed on the wall of the bag and at least one closure element projecting from said base.
- Each profile is fixed to the wall of the bag, so that each closing element of a profile either in front of a closing of the other profile which is complementary thereto.
- patent FR 2 613 326 describes closure profiles separable with several fusible ribs, cross section rectangular, having sufficient mass to provide a layer of molten connection between the profile and the wall of the bag.
- welding is sometimes difficult, reducing the efficiency of fixing and causing deformations of the profile, affecting the good cooperation of the closing elements.
- the object of the invention is to provide an improvement to welding ribs of the closure profiles, on bag walls.
- the invention is a plastic bag provided with a separable and reclosable closing device made up of two profiles, each profile consisting of a base provided on one side with a closure element, able to cooperate with that of the other profile and, on the opposite face, of at least one fixing rib of the base on a bag wall, by fusion and crushing of the fixing rib on said wall, characterized in that the rib has a generally triangular cross section whose width increases from the free end towards the base.
- the width of the contact area between the rib and the wall of the bag is therefore variable and a function of the quality of the welding.
- This rib profile has the advantage of being tolerant with respect to variations in the welding pressure of the profile on the film of the bag. In effect, if the welding pressure is low, the force on the tip is nevertheless sufficient to give an effective weld. However, more the higher the pressure, the larger the welding surface, thus imposing an even higher back pressure. This effect avoids the crossing of the total thickness of the film constituting the wall of the bag.
- a pigment is introduced into the bulk of the plastic, at least at the level of ribs.
- the wall of the bag is translucent or transparent, it a more or less colored band appears at the level of the fixing of the profiles.
- the width and intensity of the color of this strip are then depending on the importance of the region of the rib having fused with the support. So the quality of fixing can be controlled optically after welding.
- an asymmetrical coloring of the ribs on the part and other closing elements allows the manipulator to locate the meaning. in which the profile must be placed relative to the opening of the bag.
- the closure element must have a high resistance the internal pressure of the contents of the sachet.
- the same element must be able to be opened easily by the user and therefore have a less resistance to external pressure.
- the closing elements have an asymmetry which must be able be identified during the profile welding step on the wall of the bag.
- FIG. 1 a closure device 1 in plastic material, consisting of two sections 2. Each section 2 is consisting of a base 3. Each base 3 is a flattened strip of rectangular section.
- the internal face is provided with at least one closing element 4.
- the external face is provided with at least one fixing rib 5 of the profile 2 on a bag wall 10.
- Each closure element 4 is parallel to the edge of the base 3.
- closure elements 4 of each profile 2 are suitable for cooperate with each other to make the two profiles 2 integral with one of the other. These closure elements can be fitted one into each other and reversibly separated.
- one of the closure elements 4 is represented by an arrow which symbolizes a male element.
- the other closing element 4 is represented by an open cylinder, which symbolizes a female element.
- These elements are of any known form, capable of ensuring the closing function by nesting of the male element in the female element.
- this closure is airtight.
- Each fixing rib 5 is parallel to the edge of the base 3.
- Each fixing rib 5 has a cross section whose width increases from the free end to the base 3. This section is generally triangular. The triangle thus defined is isosceles even equilateral. If it is isosceles, neither of the two sides of the same length does not coincide with base 3.
- Each rib 5 can be arranged on the base 3 of several manners.
- ribs 5 per profile 2, they are each located near a longitudinal edge 8 of the base 3, on the face of the base 3 opposite to that carrying the element 4.
- this embodiment is not limiting and it is also possible consider only one rib 5 per profile 2, just like three or four ribs 5 per profile 2, or even more. In this case, two of them are each located for example, near a longitudinal edge 8 of the base 3.
- the amount of material of the ribs 5 subjected to crushing at welding course may be variable. Plus merger operations and crushing the ribs 5 are effective, the larger the surface of the solder 6 ( Figure 3). Thus, the triangular shape of the ribs 5 allows direct visual control of the quality of the weld obtained.
- the plastic, and in particular that of the ribs 5, of the closing device 1 can be colored in the mass by pigments. This improvement makes it possible to visualize the width l of the weld surface 6 by transparency, through the bag wall 10.
- Pigmentation can be obtained with any type of pigment.
- the pigment concentration may be less than 1% by weight.
- the amount of pigment accumulated on the surface of the weld 6, is larger if the tip 7 of the rib 5 is crushed on greater height h ( Figure 3). So we can control the quality optically welding, not only thanks to the width l of the surface of the solder 6, but also thanks to the intensity of the color of the solder 6.
- the ribs 5 can be dyed differently from one side and other closing elements 4.
- Profile 2 can be made with different types of polymers. These polymers can be in particular a polyolefin or a mixture of polyolefins.
- the base 3 and the closing elements can be produced in any polymer with mechanical characteristics allowing to ensure that the closure remains firm.
- This polymer can be, for example, a low, medium or high density polyolefin.
- the ribs 5 can be made of any polymer having good weldability characteristics and capable of being coextruded with the material of the base 2.
- This polymer can be, for example, a polyolefin such as linear polyolefins, EVA, of metalocene, etc.
- the constituent material ribs 5 may be different from that constituting the elements of closure 4 and base 3.
- the material constituting the ribs has a melting point lower than that constituting closing elements 4 and base 3.
- the ribs 5 have a geometry and a position on the base 3 which allow all of the two profiles 2 of the device to closure 1 to deform in order to have a reduced bulk the space between the guides 21 of said dies 20 ( Figure 4). More precisely, the sum of the widths L of the external faces 7 of the ribs 5 is approximately less than or equal to the thickness E of the assembly of the two sections 2 in line with the closure elements 4, when said elements 4 are nested one inside the other. In this way, we can obtain a deformed state of the profiles 2, for which the surface formed by the external face 9 of the base 3 between the ribs 5 and the internal faces 7 ' ribs 5, is generally planar.
- the ribs 5 allow the profiles 2 to be precisely wedged in said dies 30, between guide elements 31, blades or rollers ( Figure 5).
- the width of the base 3 between the bases of the internal faces 7 'of the ribs 5 is approximately complementary to the width of the elements of guide 31.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
- Slide Fasteners (AREA)
- Package Closures (AREA)
- Making Paper Articles (AREA)
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
Description
- largeur de l'embase 3, entre les deux bords longitudinaux 8, de l'ordre de 8 mm ;
- épaisseur E, au droit des éléments de fermeture 4, de l'ensemble des deux profilés 2, lorsque lesdits éléments de fermeture 4 sont en prise l'un avec l'autre, de l'ordre de 2 mm ;
- largeur de la base des nervures 5, commune avec l'embase 3, de l'ordre de 1 à 2 mm ;
- distance entre le bord longitudinal 8 de l'embase 3, et le bord de la nervure 5, le plus proche dudit bord longitudinal 8, de l'ordre de 0 à 1 mm.
Claims (13)
- Sachet en matière plastique muni d'un dispositif de fermeture (1) séparable et refermable, constitué de, deux profilés (2), chaque profilé (2) étant constitué d'une embase (3) pourvue, sur une face, d'un élément de fermeture (4), apte à coopérer avec celui de l'autre profilé (2) et, sur la face opposée, d'au moins une nervure de fixation (5) de l'embase (3) sur une paroi de sachet (10), par fusion et écrasement de la nervure de fixation (5) sur ladite paroi (10),
caractérisé en ce que la nervure de fixation (5) a une section transverse globalement triangulaire dont la largeur croít de l'extrémité libre vers l'embase (3). - Sachet selon la revendication 1, caractérisé en ce que le triangle défini par la section transversale de la nervure de fixation (5) est isocèle, et dont aucun des deux côtés de même longueur ne coïncide avec l'embase (3).
- Sachet selon la revendication 1 caractérisé en ce que le triangle défini par la section transversale de la nervure de fixation (5) est équilatéral.
- Sachet selon l'une des revendications précédentes caractérisé en ce que chaque profilé comporte deux nervures (5), chacune située à proximité d'un bord longitudinal (8) de l'embase (3) et sur la face de l'embase (3) opposée à celle portant l'élément de fermeture (4).
- Sachet selon l'une quelconque des revendications 1 à 3 caractérisé en ce que chaque profilé (2) comporte quatre nervures de fixation (5), situées sur la face de l'embase (3) opposée à celle portant l'élément de fermeture (4) et dont deux sont chacune située à proximité d'un bord longitudinal (8) de l'embase (3).
- Sachet selon l'une quelconque des précédentes revendications caractérisé en ce que chaque nervure de fixation (5) est teintée dans la masse.
- Sachet selon l'une quelconque des revendications précédentes caractérisé en ce que les nervures (5) sont teintées d'une manière différente de part et d'autre des éléments de fermeture (4).
- Sachet selon l'une quelconque des revendications précédentes caractérisé en ce que la somme des largeurs des faces externes (7) de deux nervures (5) de fixation prévues respectivement sur chaque profilé est approximativement inférieure ou égale à l'épaisseur de l'ensemble des deux profilés (2) au droit des éléments de fermeture (4) lorsque lesdits éléments (4) sont imbriqués l'un dans l'autre.
- Dispositif de fermeture (1) pour la réalisation d'un sachet selon l'une quelconque des revendications précédentes, constitué de, deux profilés (2), chaque profilé (2) étant constitué d'une embase (3) pourvue, sur une face, d'un élément de fermeture (4), apte à coopérer avec celui de l'autre profilé (2) et, sur la face opposée, d'au moins une nervure de fixation (5) de l'embase (3) sur une paroi de sachet (10), par fusion et écrasement de la nervure de fixation (5) sur ladite paroi (10),
caractérisé en ce que la nervure de fixation (5) a une section transverse globalement triangulaire dont la largeur croít de l'extrémité libre vers l'embase (3). - Dispositif de fermeture (1) selon la revendication 9 caractérisé en ce que chaque profilé comporte deux nervures (5), chacune située à proximité d'un bord longitudinal (8) de l'embase (3) et sur la face de l'embase (3) opposée à celle portant l'élément de fermeture (4).
- Dispositif de fermeture (1) selon l'une quelconque des revendications 9 or 10 caractérisé en ce que chaque nervure de fixation (5) est teintée dans la masse.
- Dispositif de fermeture (1) selon l'une quelconque des revendications 9 à 11 caractérisé en ce que les nervures (5) sont teintées d'une manière différente de part et d'autre des éléments de fermeture (4).
- Dispositif de fermeture (1) selon l'une quelconque des revendications 9 à 12 caractérisé en ce que la somme des largeurs des faces externes (7) de deux nervures (5) prevues respectivement sur chaque profilé est approximativement inférieure ou égale à l'épaisseur de l'ensemble des deux profilés (2) au droit des éléments de fermeture (4) lorsque lesdits éléments (4) sont imbriqués l'un dans l'autre.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9707490 | 1997-06-17 | ||
FR9707490A FR2764582B1 (fr) | 1997-06-17 | 1997-06-17 | Sachet comprenant un dispositif de fermeture forme de profiles complementaires et dispositif de fermeture a cet effet |
PCT/FR1998/001248 WO1998057863A1 (fr) | 1997-06-17 | 1998-06-15 | Sachet comprenant un dispositif de fermeture forme de profiles complementaires et dispositif de fermeture a cet effet |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0925229A1 EP0925229A1 (fr) | 1999-06-30 |
EP0925229B1 true EP0925229B1 (fr) | 2003-09-03 |
Family
ID=9508061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98932203A Expired - Lifetime EP0925229B1 (fr) | 1997-06-17 | 1998-06-15 | Sachet comprenant un dispositif de fermeture forme de profiles complementaires et dispositif de fermeture a cet effet |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0925229B1 (fr) |
AT (1) | ATE248756T1 (fr) |
AU (1) | AU728260B2 (fr) |
BR (1) | BR9806226A (fr) |
CA (1) | CA2263371A1 (fr) |
DE (1) | DE69817748T2 (fr) |
FR (1) | FR2764582B1 (fr) |
NZ (1) | NZ334178A (fr) |
WO (1) | WO1998057863A1 (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5956924A (en) | 1997-11-07 | 1999-09-28 | Rcl Corporation | Method and apparatus for placing a product in a flexible recloseable container |
US6216423B1 (en) | 1997-11-07 | 2001-04-17 | Huntsman Kcl Corporation | Method and apparatus for placing a product in a flexible recloseable container |
US6925688B1 (en) * | 2000-06-06 | 2005-08-09 | The Glad Products Company | Closure device |
US7163133B2 (en) | 2004-03-05 | 2007-01-16 | S.C. Johnson Home Storage, Inc. | Apparatus for and method of moving a slider along mating zipper elements |
US7244222B2 (en) | 2004-03-05 | 2007-07-17 | S.C. Johnson Home Storage, Inc. | Apparatus for and method of positioning a slider on mating zipper elements |
US7611284B2 (en) | 2004-04-26 | 2009-11-03 | The Glad Products Company | Closure device |
US8662330B2 (en) | 2009-09-03 | 2014-03-04 | Cap-N-Lock, Llc | Lockable cap for medical prescription bottle |
US9758989B1 (en) | 2014-03-26 | 2017-09-12 | Gatekeeper Innovation, Inc. | Locking cap with push button reset |
US10717571B1 (en) | 2018-03-06 | 2020-07-21 | Gatekeeper Innovation, Inc. | Clam shell cover cap and method of use |
US11279535B1 (en) | 2018-03-06 | 2022-03-22 | Gatekeeper Innovation, Inc. | Clam shell cover cap and method of use |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2613326B1 (fr) * | 1987-04-03 | 1989-07-13 | Flexico France Sarl | Bande de fermeture separable; procede et appareil pour sa fixation sur un substrat |
US5628566A (en) * | 1996-01-29 | 1997-05-13 | Reynolds Consumer Products, Inc. | Profile sealing flange |
-
1997
- 1997-06-17 FR FR9707490A patent/FR2764582B1/fr not_active Expired - Fee Related
-
1998
- 1998-06-15 CA CA002263371A patent/CA2263371A1/fr not_active Abandoned
- 1998-06-15 WO PCT/FR1998/001248 patent/WO1998057863A1/fr active IP Right Grant
- 1998-06-15 EP EP98932203A patent/EP0925229B1/fr not_active Expired - Lifetime
- 1998-06-15 NZ NZ334178A patent/NZ334178A/xx unknown
- 1998-06-15 AT AT98932203T patent/ATE248756T1/de not_active IP Right Cessation
- 1998-06-15 AU AU82187/98A patent/AU728260B2/en not_active Ceased
- 1998-06-15 BR BR9806226A patent/BR9806226A/pt not_active IP Right Cessation
- 1998-06-15 DE DE69817748T patent/DE69817748T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
NZ334178A (en) | 2000-09-29 |
DE69817748T2 (de) | 2004-07-29 |
EP0925229A1 (fr) | 1999-06-30 |
BR9806226A (pt) | 2000-03-21 |
ATE248756T1 (de) | 2003-09-15 |
FR2764582B1 (fr) | 1999-09-03 |
AU728260B2 (en) | 2001-01-04 |
FR2764582A1 (fr) | 1998-12-18 |
CA2263371A1 (fr) | 1998-12-23 |
WO1998057863A1 (fr) | 1998-12-23 |
AU8218798A (en) | 1999-01-04 |
DE69817748D1 (de) | 2003-10-09 |
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