Patent ID: 7364023

Claim:
A device ( 15 ) for slowing the movement of a drawer ( 2 ) or similar member movable with respect to a fixed structure (S) and urged by unidirectional thrust means ( 4 ), including: a casing ( 17 ) adapted to be fixed to said movable member ( 2 ) or to said structure (S) and defining a substantially cylindrical chamber ( 18 ) containing a viscous braking fluid, a rotor ( 31 ) housed within said chamber ( 18 ), said rotor ( 31 ) including a disc portion ( 32 ) adapted to rotate inside said casing ( 17 ) and a shaft portion ( 33 ) extending axially from the centre (C) of the disc portion ( 32 ) and protruding through one of the end walls ( 21 ) of the casing ( 17 ) in such a way as to be able to be operatively associated with the other of said movable member ( 2 ) or the structure (S), a pivotable arm element ( 52 ) which is pivotably mounted on a first surface ( 23 a ) of one of said casing ( 17 ) and rotor ( 31 ) extending in a plane perpendicular to the axis of rotation of said rotor, said pivotable arm element having a pin portion ( 54 ) at one end, and an elongate groove ( 70 ) which is formed in a second surface ( 62 ) of the other of said casing ( 17 ) and rotor ( 31 ) extending in a plane parallel to said first surface, wherein said elongate groove ( 70 ) extends spirally around the centre (C) of the disc portion ( 32 ) of said rotor ( 31 ) and is engageable by said pin portion ( 54 ) of the arm element ( 52 ), said groove ( 70 ) having a cam portion ( 76 ) at one end ( 73 ) dividing said groove ( 70 ) into a return path ( 75 ) and a forward path ( 74 ) for said pin portion ( 54 ) in such a way as to define, in cooperation with said thrust means ( 4 ), a releasable locking position for said rotor ( 31 ) relative to the casing ( 17 ), wherein a recess ( 51 ) is formed in said first surface ( 23 a ) which is adapted to face said second surface ( 62 ), wherein a pin ( 53 ) protrudes from the bottom of said recess and wherein said pivotable am element ( 52 ) is pivotably mounted on said pin of said recess and leans against the bottom of said recess in such a way that the pivotable arm element is able to oscillate in the bottom of the recess ( 51 ), said pin portion ( 54 ) protruding across said first surface ( 23 a ) for engaging said elongate groove ( 70 ).