Lever-actuated closure device

A lever-actuated closure, for bottles or the like containers, comprising a collar or base part adapted for being fixed to the rim of an orifice of the container which is to be closed, a closing member one side of which is hingedly connected to said collar, an actuating member having a manually operated gripper part and being hingedly mounted on said collar below the outlet orifice, and a connecting member hingedly attached to the actuating member and to the closing member at the outside thereof, which closure can be transferred, by means of the actuating member, from an open position, in which the closing member frees the outlet orifice, through elastic deformation of at least one of the said parts of the closure, via a dead-center position, in which the hinge axis of the actuating member and the two hinge axes of the connecting member are in a common plane, into a closed position, in which the closing member seals the outlet orifice, or vice versa from this closed position into the open position, the gripper part of the actuating member being, in the closed position, above the elastically deformed closing member and being movable sideways and downwards, relative to the closing member for opening the closure.