Easy-Open Valve Closure

An easy-open valve closure (10) for bottles, comprising a stationary inner valve portion (1) which can be fitted on to a bottle neck and which has a valve stopper (2) and devices (22, 23) for sealed fixing on the bottle neck, and an axially movable outer valve portion (11) which has a head plate (14) with a valve opening (12) for engagement with the valve stopper (2) and a screw cap (13) which is connected to the head plate (14) and which has a female screwthread (18) of a nominal radius r and is in engagement with the male screwthread (8) of a threaded connecting portion (4) fixedly connected to the valve stopper (2), characterised in that the screw cap (13) is fixedly connected to an actuating lever (16, 15;

• 16′) which extends radially outwardly from the screw cap (13) so that the lever radius R defined by the radially outer end (15, 16b) of the actuating lever (16, 15;
• 16′) is at a spacing relative to the axis of the screw cap, which is greater by at least 20% than the nominal radius r of the female screwthread (14).