Patent ID: 7455097

Claim:
A machine for mounting and removing vehicle wheels comprising: a base frame, a clamping and rotating device for clamping and rotating a rim of a vehicle wheel around a substantially horizontal rotation axis, first guide means for moving said clamping and guiding means substantially linearly in a substantially vertical sliding direction, an operating arm mounted on said base frame and which extends obliquely with respect to a position plane defined by said rotation axis and said sliding direction, said operating arm including a work tool for mounting and removing a tire relative to a rim, said operating arm being positionable in an operating position at substantially right angles and incidental to said rotation axis and work tool is located near a circumferential edge of said rim, a transformation device for transferring sliding movement of said clamping and rotating device into a varying movement of inclination of said operating arm in which the arm is continuously maintained in said operating position as a position of said clamping and rotating device changes in said sliding direction, said transformation device comprising at least one supporting structure of said operating arm which is associated with said base frame by interposition of means of rotation around a swinging axis substantially parallel to said rotation axis, at least one substantially plate-shaped and vertical bracket hinged to said base frame around said swinging axis, at least one plate integral with said clamping and rotating device and arranged substantially facing and adjacent to said bracket and at least one elongated first slot on at least one of said bracket and said plate and engaged by a first pin with the other of said bracket and said plate, a path defined by said first slot being suitable for determining the swinging movement of said bracket and the change in the inclination of said operating arm.