Patent ID: 8662536

Claim:
A device for sideways movement of a mobile unit ( 3 ) along a surface comprising: a frame ( 2 ) joined to the mobile unit ( 3 ) and including at least one guide ( 4 ); an activation pedal ( 1 ) articulated to said frame ( 2 ) about at least one articulation ( 1 . 1 ) for articulation of the activation pedal ( 1 ) between a resting position and an articulated position; at least one pulley ( 1 . 2 ) solidly attached to said activation pedal ( 2 ) and disposed along said at least one guide ( 4 ) of said frame ( 2 ); at least one wheel solidly ( 5 ) attached to said frame ( 2 ) and disposed in raised relationship with the surface in said resting position of said activation pedal ( 1 ); and said at least one pulley ( 1 . 2 ) and said at least one articulation ( 1 . 1 ) defining a radius of rotation extending therebetween having a constant distance during the articulation of said activation pedal ( 1 ) for moving said at least one pulley ( 1 . 2 ) along said at least one guide ( 4 ) to drag said at least one guide ( 4 ) and said at least one wheel ( 5 ) in a vertical direction with respect to said frame ( 2 ).