Patent ID: 7237326

Claim:
A device for applying balancing weights to vehicle wheels in a wheel balancing machine provided with a frame, comprising: rectilinear guiding means supported at said frame; an indicator element that is slideable on said guiding means; sensing means for detecting position of said indicator element with respect to a vehicle wheel that is rotatably supported on said frame; and removable locking means for removable locking of said indicator element in at least one direction of sliding on said rectilinear guiding means, the removable locking means being activatable when a preset position of said indicator element on said rectilinear guiding means is reached; and wherein said removable locking means comprise: at least one first gear and one second gear, in meshing with each other, and a third gear, which are rotatably supported on said wheel balancing machine, motion transmission means for transmitting motion of said indicator element to said first gear, and movement means for moving the third gear between an inactive configuration, in which said third gear is disengaged from said first and second gears, and a locking configuration, in which said third gear is simultaneously engaged with sets of teeth of said first and second gears, said third gear being adapted to prevent rotation of said first and second gears.