Patent ID: 6163897
Filing Date: 2000-12-26
Classification: E03D

Abstract:
A self-adjustable device for controlling a cistern flushing mechanism comprising:a bracket for supporting said flushing mechanism, said bracket having swivelling arms structured and arranged, by action on fingers provided by pull handles, to trigger the flushing;rods acting on heads of the swivelling arms for controlling the flushing;a casing including control buttons accessible from outside a lid of the cistern and having a thread of pitch p1 at its lower part;a socket rotatably integral with said casing and having a thread of pitch p2;a frame supported by said socket and supporting an axis of rotation of said swivelling arms;said thread pitches p1 and p2 being determined in a ratio p1/p2=L1/L2 of vertical projections of distances L1 and L2 from the axis of said fingers to contact positions of said heads and of said rods, and to the axis of rotation of the swivelling arms;said bracket supporting a threaded sleeve with thread pitch p1 and a threaded ring with thread pitch p2;whereby screwing in of the casing until said casing rests against the cistern's lid automatically provides adjustment of the position of the axis of rotation and control of the flushing without adjustment of the length of the rods.