Container provided with a base with bulging beams

Abstract

Container ( 1 ) made from plastic material, provided with a body and a base ( 3 ) which extends from a lower end of the body, the base ( 3 ) including: a peripheral resting surface ( 5 ) which defines a flat annular deposition line ( 6 ) for the container ( 1 ); —a concave dome ( 9 ) which extends from the deposition line ( 6 ) to the central zone ( 7 ); a series of moulded beams ( 10 ) in the dome ( 9 ) which each radiate from the central zone ( 7 ) towards the resting surface ( 5 ), each beam ( 10 ) including a pair of radial grooves ( 11 ) which are moulded in the dome ( 9 ) and are separated by a radial rib which projects from the bases ( 12 ) of the grooves ( 11 ).

1 . Container ( 1 ) made of plastic material, provided with a body ( 2 ) and with a base ( 3 ) that extends from a lower end of the body ( 2 ), the base ( 3 ) comprising:
 a peripheral seating surface ( 5 ) that defines a flat annular setting line ( 6 ) for the container ( 1 );   a concave dome ( 9 ) that extends from the setting line ( 6 ) to a central zone ( 7 );   a series of beams ( 10 ) formed of recesses in the dome ( 9 ) and which each radiate from the central zone ( 7 ) to the seating surface ( 5 );   wherein each beam ( 10 ) comprises a pair of radial grooves ( 11 ) that are formed of recesses in the dome ( 9 ) and are separated by a radial rib ( 15 ) that extends projecting from the bottoms ( 12 ) of the grooves ( 11 ).   
     
     
         2 . Container ( 1 ) according to  claim 1 , wherein the rib ( 15 ) is defined laterally by sides ( 14 ) that form dropped edges. 
     
     
         3 . Container ( 1 ) according to  claim 1 , wherein the grooves ( 11 ) of the pairs of grooves exhibit in cross-section a V-shaped profile. 
     
     
         4 . Container ( 1 ) according to  claim 1 , wherein the radial rib ( 15 ) exhibits in cross-section a U-shaped profile. 
     
     
         5 . Container ( 1 ) according to  claim 1 , wherein the radial rib ( 15 ) exhibits a width L, measured crosswise, and a height H, such that their ratio L/H is between 0.5 and 2. 
     
     
         6 . Container ( 1 ) according to  claim 1 , wherein each beam ( 10 ) extends to beyond the seating surface ( 5 ), the setting line ( 6 ) of which it interrupts. 
     
     
         7 . Container ( 1 ) according to  claim 6 , further comprising a pair of secondary ribs ( 21 ) that extend projecting from an outer radial end ( 17 ) of the beam ( 10 ). 
     
     
         8 . Container ( 1 ) according to  claim 1 , further comprising a series of valleys ( 19 ) formed of recesses in the dome ( 9 ), and which each extend between two beams ( 10 ), each valley ( 19 ) radiating from the central zone ( 7 ) to beyond the seating surface ( 5 ). 
     
     
         9 . Container ( 1 ) according to  claim 2 , wherein the grooves ( 11 ) of the pairs of grooves exhibit in cross-section a V-shaped profile.