Device for the adjustment of the tool of an apparatus for fitting and removing automobile tires

Device for adjusting in the horizontal and vertical plane the distance between a wheel fixed on a rotating table and the tool of an apparatus for fitting or removing an automobile tire, which apparatus comprises a base, a vertical column mounted on the base, an arm being pivotable in a horizontal plane with respect to said column, a rod being movable vertically at free end of said arm, a tool for the fitting and removal of the tire and installed at the bottom of said rod, a rotating table provided with hooks for fastening the wheel on the table and arranged below said tool, a clamping plate freely located around said rod, a pressure stud to press said clamping plate into an oblique position on the vertical rod to raise it slightly and to fix this and the tool with respect to the wheel, an eccentric actuating said pressure stud, a second eccentric acting in conjunction with a pressure stud, a clamping plate acting in conjunction with said pressure stud, said clamping plate being movable into an oblique position around a stop rod in order to pivot lightly and to fix said arm in a horizontal position with respect to the wheel, said stop rod being guided along the length of said arm in a housing and in a guide forming part of said arm, both eccentrics forming part of a cylinder with control lever in order to rotate said cylinder in said housing, one extremity of said stop rod works in conjunction with a bearing block forming part of said vertical column, a pressure spring located between said stop rod and the last mentioned clamping plate, the whole being intended to displace slightly and simultaneously fix the tool at a distance from the wheel, both in the vertical plane and in the horizontal plane.