Actuating device for a drain fitting

Abstract

An actuating device ( 1 ) for a drain fitting ( 9 ) of a flushing cistern comprises a housing ( 2 ), which is insertable into an opening ( 3 ) of a cistern lid ( 4 ), at least one push button ( 5 ), which is mounted in said housing ( 2 ) so as to be movable along an axis (M) in relation to the housing ( 2 ), and a pusher element ( 6 ), which is movable towards the drain fitting ( 9 ) to trigger flushing by actuating the at least one push button ( 5 ). The housing ( 2 ) comprises an assembly housing ( 7 ) and a push-button housing ( 8 ), which is pivotably mounted in the assembly housing ( 7 ), the at least one push button ( 5 ) being mounted on the push-button housing ( 8 ).

1 - 15 . (canceled) 
     
     
         16 . Actuating device for a drain fitting of a flushing cistern, comprising
 a housing, which is insertable into an opening of a cistern lid,   at least one push button, which is mounted in said housing so as to be movable along an axis in relation to the housing, and   a pusher element, which is movable towards the drain fitting to trigger flushing by actuating the at least one push button, wherein   the housing comprises an assembly housing, with which the actuating device is mounted in the cistern lid, and a push-button housing, which is adjustably mounted in the assembly housing in relation to said assembly housing, wherein the at least one push button being mounted on the push-button housing.   
     
     
         17 . Actuating device according to  claim 16 , wherein said push-button housing is in relation to said assembly housing pivotably or rotatably mounted in the assembly housing. 
     
     
         18 . Actuating device according to  claim 16 , wherein a clutch, in particular an overrunning clutch having a toothing and at least one blocking latch which engages in the toothing, is located between the assembly housing and the push-button housing. 
     
     
         19 . Actuating device according to  claim 16 , wherein the blocking latch interacts with the toothing, the relative movement between the assembly housing and the push-button housing being enabled in an overrunning direction, in particular after overcoming a friction force made available by the clutch, and the relative movement between the assembly housing and the push-button housing being disabled in a blocking direction, which is opposite to the overrunning direction. 
     
     
         20 . Actuating device according to  claim 16 , wherein in the event of a movement in the blocking direction acting on the push button or the push-button housing, both the push-button housing and also the assembly housing are moved. 
     
     
         21 . Actuating device according to  claim 16 , wherein a multiplicity of blocking latches are located at uniform spacing along the circumference and/or wherein the toothing has a multiplicity of teeth, which are located at uniform spacing along the circumference, and/or wherein the toothing is located on the assembly housing and the at least one blocking latch is located on the push-button housing. 
     
     
         22 . Actuating device according to  claim 16 , wherein the blocking direction is a movement in the anticlockwise direction and the overrunning direction is a movement in the clockwise direction. 
     
     
         23 . Actuating device according to  claim 16 , wherein the assembly housing comprises a circular base plate and a side wall, which extends from the base plate along a central axis, the side wall terminating with an at least partially encircling flange. 
     
     
         24 . Actuating device according to  claim 16 , wherein the push-button housing comprises a cylindrical side wall having a collar portion, which projects from the side wall. 
     
     
         25 . Actuating device according to  claim 24 , characterized in that the collar portion extends over the flange, the clutch being located between the collar portion and the flange. 
     
     
         26 . Actuating device according to  claim 23 , wherein the base plate and the side wall of the assembly housing make available an interior space, into which the push-button housing at least partially protrudes. 
     
     
         27 . Actuating device according to  claim 16 , wherein the push-button housing is rotatably mounted in the assembly housing, a securing element, which prevents an axial displacement between the push-button housing and the assembly housing, being provided between the push-button housing and the assembly housing. 
     
     
         28 . Actuating device according  claim 16 , wherein the at least one push-button is held in the starting position by a restoring element, in particular a compression spring, the restoring element being mounted preferably between the base plate and the push button. 
     
     
         29 . Actuating device according to  claim 16 , wherein the assembly housing comprises a threaded portion having a thread, in particular having an external thread, with which the assembly housing is connectable to a drain fitting. 
     
     
         30 . Actuating device according to  claim 29 , wherein the pitch direction of the thread of the threaded portion is identical to the overrunning direction. 
     
     
         31 . Actuating device according to  claim 16 , wherein the at least one push button is mounted in the push-button housing in a rotationally fixed and axially movable manner. 
     
     
         32 . Actuating device according to  claim 16 , wherein the pusher element is mounted in the assembly housing so that it is movable along the central axis. 
     
     
         33 . Actuating device according to  claim 16 , wherein the push button and the pusher element each comprise a contact face, the push button and the pusher element being in connection with one another via said contact face.