Bag including closure profiles actuated by a slider

Abstract

The invention relates to a bag ( 1 ) that comprises two substantially parallel sheets ( 12, 13 ) defining the main walls thereof, complementary closing profiles ( 2, 3 ) respectively attached to said sheets ( 12, 13 ), and a slider ( 5 ) for actuating the profiles ( 2, 3 ) upon opening or closing. The bag is characterised in that at least one of said sheets ( 12, 13 ) includes, on the outer face thereof, in the vicinity of the gripping area of the slider ( 5 ) and parallel to the movement direction of the latter, a strip-shaped bead defining a build up having a thickness and a width sufficient for locally modifying the deformability thereof.

1 .- 10 . (canceled) 
     
     
         11 . A bag including:
 two sheets generally parallel forming its main walls;   mating closure profiles respectively attached on these sheets;   a slider for actuating the profiles upon closing and opening,   wherein at least one of said sheets includes, on its external face, in proximity to the gripping area of said slider and parallel to the displacement direction of the latter, a strip-shaped bead forming an overthickness with sufficient thickness and width for locally modifying the deformability thereof.   
     
     
         12 . The bag according to  claim 11 , wherein said strip-shaped bead is capable of locally increasing the rigidity thereof. 
     
     
         13 . The bag according to  claim 11 , wherein said bead has a width comprised between 5 and 15 millimeters and a thickness comprised between 100 and 1,000 micrometers. 
     
     
         14 . The bag according to  claim 11 , wherein said bead also forms an abutment means capable of immobilizing said sheets relatively to said slider along a direction generally perpendicular to the displacement axis of the slider. 
     
     
         15 . The bag according to  claim 11 , wherein said slider comprises flanks, the inner surface of each of them bearing a boss directed towards the opposite flank, so that the sheets forming the main walls converge towards each other, from said profiles towards said bosses. 
     
     
         16 . The bag according to  claim 11 , which it includes parallel to said profiles, between said sheets and at the mouth of the bag, additional raised means positioned on the inside of the closure profiles, designed for ensuring the seal by forming a barrier between the sheets in a closure position of the bag, these additional means being adapted so as to be urged towards their sealing position by the slider when the latter is displaced towards the closure position of the bag, and that said bead is located in the vicinity of said bosses. 
     
     
         17 . The bag according to  claim 11 , wherein said bead is integrally formed with said sheets in the same material. 
     
     
         18 . The bag according to  claim 17 , wherein said bead is a bead co-extruded with said sheets formed with a different material, for example high density polyethylene, while the sheets consist of low density polyethylene. 
     
     
         19 . The bag according to  claim 11 , wherein said bead is an element added to said sheets. 
     
     
         20 . The bag according to  claim 17 , wherein said bead consists of a deformable material, notably based on rubber.