Patent ID: 7100660

Claim:
A bead release device of a tire removal machine for disengaging a bend of a tire from a rim thereof, comprising: a vertical wheel support surface located on a vertical base; a movable arm rotatable in a swivel plane perpendicular to a vertical wheel support surface, said arm having a first end pivotally engaged to the base, and a second end supporting a bead release tool in front of the vertical wheel support surface; a cylinder piston unit connecting the base and a central portion of said arm in the swivel plane that moves the bead release tool toward and away from the bead of the tire; wherein said first end of the arm is engaged to the base by means of a locking and release system which slides in a curved slot fixed to the base, and said center portion of said arm is rotatably engaged to an end of a cylinder piston of said cylinder piston unit, and wherein said locking and release system permits said swivel plane of the arm to be adjusted around the axis of said cylinder piston and thereafter fixed.