Packaging having a flexible tube and divisible lid

Abstract

The invention relates to an integral packaging and including a tube, a lid, and a divisible area, the divisible area connecting the head of the tube to the lid and surrounding an axial channel that is shut off by the lid arranged in a turned-up position, the lid and the head having respective outer surfaces facing one another and respectively concave and convex, and the divisible area extending in a half-space defined by a plane perpendicular to the axis and containing the lid. The outer surfaces of the lid and the head have two corresponding respective points an angular distance of which, with said angular distance being measured by an angle at least partially covering the divisible area and with the top of said angular distance belonging to the axis, is no larger than 20 degrees.

1 . An integral packaging for pasty, viscous or creamy product and including a tube, a lid, and a divisible area, the tube being provided with a flexible skirt extending around and along a longitudinal axis, and a head traversed by an axial channel, the divisible area surrounding the axial channel and connecting the head to the lid, the lid being arranged in a turned-up position and shutting off the axial channel, this channel serving as outlet after breaking the divisible area, the lid and the head exhibiting respective mutually facing, respectively concave and convex, outer surfaces and the divisible area integrally extending in a first half-space delimited by a plane perpendicular to the axis and containing the lid, wherein the packaging is made of polyolefin and, in each of the axial planes of a set of at least three axial planes regularly distributed around the axis, the outer surfaces of the lid and of the head exhibit two corresponding respective points an angular distance of which, with said angular distance being measured by an angle at least partially covering the divisible area and with the top of said angular distance belonging to the axis, is no larger than 20 degrees. 
     
     
         2 . The packaging according to  claim 1 , wherein in each of said axial planes and in a radially inner area to the two corresponding points, the outer surface of the lid makes with a plane perpendicular to the longitudinal axis an undercuts angle at least equal to 5 degrees. 
     
     
         3 . The packaging according to  claim 1 , wherein in each of said axial planes and in a radially inner area to the two corresponding points, the outer surfaces of the lid and the head together make an angle at the most equal to 10 degrees. 
     
     
         4 . The packaging according to  claim 1 , wherein the outer surface of the lid extends, at a distance from the axis, to an edge at least partially contained in the plane delimiting the first half-space and defining, in this plane, a support polygon for the packaging once placed in an operational configuration after recapping the lid on the tube. 
     
     
         5 . The packaging according to  claim 1 , wherein a portion of the outer surface of the head belongs to the first half-space. 
     
     
         6 . The packaging according to  claim 5 , wherein the minimum ratio of the radius of the portion of the outer surface of the head belonging to the first half-space to the radius of the inner side of the lateral wall of the lid is at least equal to 0.5. 
     
     
         7 . The packaging according to  claim 5 , wherein the minimum ratio of the radius of the portion of the outer surface of the head belonging to the first half-space to the radius of the inner side of the lateral wall of the lid is at least equal to 0.7. 
     
     
         8 . The packaging according to  claim 1 , wherein the outer surfaces of the lid and the head exhibit a rotational symmetry around the longitudinal axis. 
     
     
         9 . The packaging according to  claim 1 , wherein the lid, outside the divisible area and in a radially inner area to the two corresponding points exhibits a wall of thickness at the most equal to 0.6 millimeters.