FR2718108A1 - Rapid fastener for plastics frozen food bags - Google Patents

Abstract

The fastener comprises two plastics slides (B,C) which have on one of their opposite faces complementary male and female parts allowing their sealed fitting. The first slide (B) has on one side a longitudinal rib (B3) and on the other side webs (B1a,B1b) sectioned and oriented to allow them to be held by the user's fingers. The second slide (C) has on its face, opposite the first slide, a longitudinal channel (C3) which receives the longitudinal rib and allows the insertion and fixing of a plastic sealing film. The other face of the second slide has end webs (C1a,C1b) which are oriented to allow them to be gripped and held by the user in order to open and close them. The second slide has in its middle part a longitudinal slot (C4) constituting an elastic zone allowing the bringing together of lips in order to disengage the rib.

Description

QUICK CLOSURE FOR MATERIAL BAGS
PLASTIC.

 The invention relates to the technical sector of plastic bags and packaging and the related closing devices.

 The invention relates to a rapid closure for plastic bags and packaging, in particular in the context of the packaging of food products such as frozen products, products frozen by the consumer from products which he himself can cultivate in the garden. The invention also relates to quick closings for all other applications for the storage or temporary storage of various products.

 According to the prior art, it is known to produce bags, sachets or packaging made of plastic material incorporating directly during the manufacture of the rapid closure means. To this end, the inner faces of the bags, sachets or other similar packaging are arranged during their manufacture with internal protruding shapes which will allow, by complementarity, to ensure a relatively tight closure. These provisions are provided near the upper upper edge of the bag and the operator must, by a simple action on the end parts of the walls, open and release the male footprints from one of these closing zones.

 We also know the use of said zipper reported and fixed on this type of packaging.

 This type of closure, although satisfactory and reliable over time, nevertheless presents certain drawbacks. First of all, it very often happens that the interior volume of the bag, sachet, incorporating such a closure system is not entirely filled by the products contained. It is then necessary for the storage of all of these packages in areas of refrigeration, freezing, to surround the free area of products from the sachet, packaging film around the full part. This is however impractical and to ensure a holding, we then use additional connecting means of the twine type, elastic, and the like.

 Furthermore, this system does not make it possible to limit the actual volume of use to that necessary for the arrangement and storage of the products.

 In addition, individuals tend more and more in their gardens to grow food products which they then freeze themselves in devices they hold at home.

 The bags proposed for the arrangement and storage of the products to be consumed are not practical and very often, it is necessary to use and ensure the closure by a string or the like.

 The aim sought after according to the invention was to remedy all of these drawbacks by proposing a fast, simple, inexpensive and adaptable closure device on films, bags, plastic packaging sachets in all areas suitable for s '' closely adapt to the necessary filling volume in relation to the products contained.

 Another aim sought after according to the invention was to produce a rapid closing device which can be reused on numerous occasions without particular handling, this device being made of a material which is compatible with the cold conditions encountered in devices of the type freezers.

 According to a first characteristic of the invention, the rapid closing device is remarkable in that it comprises two strips in the form of bars made of a plastic material having on one of their faces intended to be opposite male complementary means -female allowing their fitting and snap-tight sealing, these means trapping the material and ensuring the maintenance and tightening of a thickness of a film, sachet or packaging in plastic material by an appropriate positioning and adapted according to the volume filled in the sachet by the product contained.

 According to another characteristic, these rapid closing means are established in the form of two bars of appropriate dimensions and lengths, a first bar comprising on one side a longitudinal rib having at the end a bead shape, and on the other side said bar having profiled and oriented wings allowing them to be grasped by the fingers of a user, and in that the second bar comprises on its face opposite the first a hollowed-out longitudinal shape forming a profiled channel capable of receiving the above-mentioned longitudinal rib in sealing of the first bar by authorizing the insertion, fixing, holding and sealing of the plastic film and the like, The other face of the second bar having oriented end wings allowing them to be taken up and gripped by the use for opening and closing, said second bar having in its middle part and opposite the longitudinal hollowed out shape, a longitudinal slit constituting a zone of elasticity to enable the lips formed to be brought together and released in order to release the rib established on the first means.

 These characteristics and others will become apparent from the following description.

To fix the subject of the invention illustrated in a nonlimiting manner in the figures of the drawings:
- Figure 1 is a perspective view illustrating the quick closing device according to the invention before assembly.

 - Figure 2 is a front sectional view according to Figure 1 illustrating the shapes of the two bars constituting the quick closing device.

 - Figure 3 is a schematic view illustrating the opening and release of the quick closing device.

 - Figure 4 is a schematic view illustrating the positioning of the rapid closure device on a film, bag or equivalent.

 In order to make the object of the invention more concrete, it is now described in a nonlimiting manner illustrated in the figures of the drawings.

 The quick-closing device according to the invention is referenced as a whole by (1) and is adapted to ensure the closing and sealing on sachets, bags, plastic films and other equivalent packaging referenced as a whole by ( 2).

 Each rapid closing device essentially comprises two means established in the form of two bars (B) and (C) made of plastic material and established over a long length, these bars being able, without modification of their characteristics, to be able to withstand cold temperatures when the The entire sachet, film, packaging is inserted into a refrigeration or freezing appliance.

 The bar (B) which constitutes the male fixing means comprises a profiled body having two wings (Bla) (bob) facing opposite forming a bead at their ends (B2a) (B2b) to facilitate their entry by the user.

 In the middle part opposite said wings is arranged a central rib (B3) longitudinal over the entire length of the bar and having at the end a rounded shape (B3a); said wings are advantageously oriented angularly at an angle a with respect to the transverse plane of the bar while being distant from the central rib. The bar (C) which constitutes the female means comprises a profiled body having two opposite facing wings (cula) (club) forming a bead at their ends (C2a-C2b) to facilitate their entry by the user. These wings are advantageously arranged angularly also at an angle a with respect to a transverse median plane of the bar. In its central part opposite said wings is disposed a longitudinal recessed shape (C3) forming a cavity, with a substantially rounded shape with end lips (C3a) to allow engagement by clipping of the central rib (B3) established on the bar (B). The volume of this hollowed out shape (C3) is such that it allows the profiled end of the rib to be maintained and also the passage and imprisonment of the part of film, plastic bag and the like.

It is further formed on the outer face of the bar (C) a longitudinal slot (C4) constituting a zone of elasticity to allow the approximation and release of the lips (C3a) formed on the bar (C) in order to release the central rib (B3). This slot is established in
V or equivalent with an appropriate depth to facilitate proper handling of the bar (C) with a view to its separation from the bar (B).

 Without departing from the scope of the invention, the shapes of the wings of said bars, or of their connection and attachment means can vary, the implementation described being advantageous and particularly reliable.

 In a particular adaptation, said bars which are manufactured by extrusion can be arranged transversely with pre-cut (3) or weakening zones thus defining pre-established lengths.

 The advantages emerge clearly from the invention. The simplicity of the closure device and its multiple uses is emphasized, its adaptation in varied position on films, sachets, and plastic packaging, as it appears in FIG. 4.

 This device can be manufactured in the form of modules and can be marketed through mass distribution networks, by pair of bars, or by a multiplicity of pairs of bars. Users and consumers can therefore buy them according to their needs, and then reuse them when the packaging concerned becomes available again.

 These bars can have any external profile and it is possible to engrave a marking or desired information.

Claims (5)

-1- Quick closing device for plastic bag characterized in that it comprises two strips in the form of bars (B, C) made of a plastic material having on one of their faces intended to be opposite the means (B3 and C3) complementary male-female allowing their interlocking and snap-tight sealing, these means trapping the material (2) and ensuring the maintenance and tightening at sealing of a thickness of a film, sachet or plastic packaging by an appropriate and adapted positioning according to the volume filled in the sachet by the product contained. -2- Device according to claim 1 characterized in that these quick closing means are established in the form of two bars of appropriate dimensions and lengths, a first bar (B) comprising on one side a longitudinal rib (B3) having boils a bead shape, and on the other side said strip having wings (bila, Bulb) profiled and oriented allowing their grasping by the fingers of a user, and in that the second strip (C) comprises on its face opposite the first a longitudinal hollow shape (C3) forming a profiled channel capable of receiving the above-mentioned longitudinal rib of the first strip with sealing, allowing the insertion of the plastic film and the like , The other face of the second bar having end wings (Cia-Cl b) oriented allowing them to be taken and gripped by use for the purpose of opening and the closure, said second bar having in its median part and opposite the longitudinal hollowed out shape a longitudinal slot (C4) constituting a zone of elasticity to allow the lips formed to be brought together and released in order to release the rib established on the first way. -3- Device according to claim 2 characterized in that the wings of the two bars (B and C) are established angularly at an angle a with respect to the transverse median plane of each bar. -4- Device according to any one of claims 1 to 3 characterized in that each bar has precut areas (3) or weakening. -5- Device according to any one of claims 1 to 4 characterized in that the bars are made by extrusion.