Tube made in a single piece by injection of a plastic material

Abstract

The tube ( 1 ) comprises a bottom part ( 1 a ), open for introduction of a product, which is then closable, and a top part ( 1 b ) which has a through-hole ( 2 ) for passage and exit of the product from the tube. The bottom part ( 1 a ) is delimited by a lateral surface which exhibits a smaller thickness than a thickness of a lateral surface of the top part ( 1 b ) which delimits a remaining part of the tube ( 1 ). The top part ( 1 b ) comprises an opening ( 3 ), which is larger than the through-hole ( 2 ) and is arranged in a zone of the top part ( 1 b ) in which the through-hole ( 2 ) is to be located, in which opening a reducer ( 4 ) is sealingly fitted, and in which reducer ( 2 ) the through-hole ( 2 ) is afforded.

1 . A tube ( 1 ) made in a single piece by injection of a plastic material, comprising a bottom part ( 1   a ) which is open for introduction of a product, and closable after the introduction thereof, and a top part ( 1   b ) having a through-hole ( 2 ) for passage of a product in outlet from the tube ( 1 ), wherein the bottom part ( 1   a ) of the tube ( 1 ) is delimited by a lateral surface being thinner than a lateral surface delimiting a remaining part of the tube.  
   
   
       2 . The tube of  claim 1 , wherein the thinner lateral surface is variable in length, starting from a bottom end of the tube, according to an overall length of the tube, from a minimum of a few millimetres up 1 to 2 centimetres, and represents about a tenth of a total length of the tube ( 1 ).  
   
   
       3 . The tube of  claim 1 , wherein the thinner lateral surface has a thickness which is comprised between 0.40 and 0.55 millimetres ( 1   a ).  
   
   
       4 . The tube of  claim 1 , wherein a reduction in thickness of the lateral surface of the bottom part of the tube is obtained by increasing an internal diameter of the tube.  
   
   
       5 . The tube of  claim 1 , wherein the top part ( 1   b ) of the tube comprises an opening ( 3 ) which is larger than the through-hole ( 2 ) and is arranged in a zone of the top part ( 1   b ) in which the through-hole ( 2 ) is to be made; it comprises a reducer ( 4 ) in which the through-hole ( 2 ) is made, which reducer ( 4 ) is conformed and arranged to sealingly fit into the opening ( 3 ).  
   
   
       6 . The tube of  claim 5 , wherein the opening ( 3 ) has a circular section and is located on a plane which is perpendicular to an axis of the tube; the reducer ( 4 ) comprising an external ring ( 4   a ) which fits in the opening ( 3 ); the through-hole being located concentrically to the external ring ( 4   a )