Patent ID: 8381791

Claim:
A device for lifting a bottom side wall ( 7 b ) of a tyre ( 7 ) in a tyre removing machine ( 1 ) where the wheel ( 5 ) being processed is positioned with its axis vertical, the device comprising: a frame ( 10 ); an arm ( 16 ) rotatably associated with the frame ( 10 ) at a first end ( 16 a ) of the arm ( 16 ) to rotate around an axis (F) parallel to the wheel ( 5 ) axis between an angular rest position and an angular working position; a supporting element ( 18 ) connected to a second end ( 16 b ) of the arm ( 16 ) and designed to interact with the bottom side wall ( 7 b ) of the tyre ( 7 ), in order to lift it, when the arm ( 16 ) is in the working position, wherein it comprises an arm ( 16 ) rotation stop member ( 20 ) configured to hold the arm ( 16 ) in place at a certain angular position relative to the frame ( 10 ) at least when it is at the angular working position and to impede the arm ( 16 ) rotation around said axis (F), wherein the stop member ( 20 ) comprises a brake ( 21 ).