Patent ID: 8726764

Claim:
In a sommelier's corkscrew having an elongated first shaft ( 1 ) hingedly connected at a first end with a second shaft ( 2 ), said second shaft ( 2 ) including a tool ( 2 . 1 ) adapted for the opening of a crown-type cap and an extension ( 2 . 2 ) having a step formed therein adapted to engage a top edge of a bottle mouth during the corkscrew lifting step, and a spring-biased helically shaped third shaft ( 3 ) hingedly connected at a first end to said first shaft ( 1 ) and having a second free end part ( 3 . 1 ), the improvement comprising: a mechanical element adapted to engage said spring-biased helically shaped third shaft ( 3 ) and actuate it to overcome the bias and move said third shaft from a closed position of said corkscrew where the third shaft ( 3 ) is contained between the first ( 1 ) and second ( 2 ) shafts to an open position where the third shaft ( 3 ) is substantially perpendicular to said first ( 1 ) and second ( 2 ) shafts substantially aligned in the open position, said mechanical element comprising a linkpiece ( 10 ) fixed to a lower part of said extension ( 2 . 2 ) adapted to engage and hold the free end part ( 3 . 1 ) of said third shaft ( 3 ) in the closed position of said corkscrew.