Patent ID: 6845957

Claim:
A device for mounting and dismantling of at least one of inner shaft formwork elements, the device comprising: a compensating element ( 23 , 49 ) connectable to one or both of first and second inner shaft formwork elements ( 21 , 22 ; 47 , 48 ), the compensating element ( 23 , 49 ) including means for moving the inner shaft formwork elements ( 21 , 22 ; 47 , 48 ) relative to one another over a certain distance; means for displacing inner shaft formwork surfaces ( 29 , 30 ) of one or both of the inner shaft formwork elements ( 21 , 22 ; 47 , 48 ) at least partially behind a compensating element formwork surface ( 31 ) during displacement of the compensating element ( 23 ; 49 ) into a formwork dismantling position; means for pulling together the inner shaft formwork elements ( 21 , 22 ) behind the compensating element formwork surface ( 31 ) during displacement of the compensating elements ( 23 ; 49 ) into the dismantling position; means for moving apart the inner shaft formwork element ( 21 , 22 ; 47 , 48 ) into a predetermined formwork position during displacement of the compensating element ( 23 ; 49 ) into a formwork mounting position; and means for moving the compensating element formwork surface ( 31 ) behind the formwork surface ( 29 , 30 ) of one or both of the inner shaft formwork elements ( 21 , 22 , 47 , 48 ) during displacement of the compensating element ( 23 , 49 ) into the formwork dismantling position and means for moving the compensating element formwork surface ( 31 ) into a plane of the formwork surface ( 29 , 30 ) of one or both of the formwork elements ( 21 , 22 , 47 , 48 ) inner shaft during displacement of the compensating element into the formwork dismantling position.