Closure with Hinged Lid for Bottles and the Like with an Automatic Lid Opening System Comprising an Improved Button

Abstract

Closure with hinged lid for a bottle and the like with an automatic lid opening system including an improved button. The closure has an elastic element made from elastomer material that exerts a spring-back force on the lid towards an open position thereof, and an anchoring member between a main body and the lid. The button includes a movable area, made from material of the main body, with a front portion defined in a side wall of the main body and joined thereto by a pivoting line. The anchoring member includes a first part formed in the movable area of the main body and a second part formed on the lid for being anchored in the first part.

1 - 4 . (canceled) 
   
   
       5 . Closure with a hinged lid for a container having an automatic lid opening system, comprising:
 a main body, provided with a supply mouth to be applied to a neck of the container,   wherein said main body has a side wall and an upper base on which said supply mouth is provided;   a hinged lid joined to said main body by a hinge joint, so that said lid can pivot between an open position and a hinged position in which the lid blocks said supply mouth,   wherein said main body and said lid are molded from rigid plastics material;   an elastic element arranged between said main body and said lid to apply a spring-back force on said lid towards said open position,   wherein said elastic element is made from an elastomer material other than said rigid plastics material;   an anchoring member between said lid and said main body for retaining said lid in its hinged position; and   a button for releasing said anchoring member so that by operating said button the lid is opened due to the action of the spring-back force applied by said elastic element,   wherein said button includes a movable area molded integrally with said main body in rigid plastics material, so that said movable area and said main body form an integral part molded from rigid plastics material,   wherein said movable area includes at least one front portion delimited on said side wall and joined at a lower end to said side wall by a joining line that defines a pivoting axis of said movable area,   wherein said front portion has a pressing surface for receiving a user's finger, and   wherein said anchoring member including a first part formed in said movable area and a second part formed in said lid for being anchored in said first part,   wherein said movable area is delimited on said main body by a deformable contour defined by a weakness in a wall of said main body, said deformable contour defining a continuous joining surface between said movable area and a remainder of said main body; and   said deformable contour has an upper section that defines in said upper base an upper part of the movable area and respective side sections that define in said side wall the front portion of the movable area,   wherein said side sections extend the ends of said upper section as far as said joining line.   
   
   
       6 . Closure according to  claim 5 , wherein the weakness has, in section, a toggled shape and a reduced thickness with respect to adjacent areas of said wall. 
   
   
       7 . Closure according to  claim 6 , wherein said weakness shapes said deformable contour in the form of a groove which, in said side sections, has a depth that decreases towards lower ends of said side sections. 
   
   
       8 . Closure according to  claim 5 , wherein said anchoring member includes an opening formed in said front portion of the movable area and a hook-shaped projection formed on said lid. 
   
   
       9 . Closure according to  claim 6 , wherein said anchoring member includes an opening formed in said front portion of the movable area and a hook-shaped projection formed on said lid. 
   
   
       10 . Closure according to  claim 7 , wherein said anchoring member includes an opening formed in said front portion of the movable area and a hook-shaped projection formed on said lid.