Apparatus for mounting a tire on a vehicle wheel rim

An apparatus for mounting a tire onto a vehicle wheel rim, wherein said apparatus is adjustable to mount tires having respective different tire sizes on wheel rims having respective different wheel diameters within a range of different wheel diameters, said apparatus comprising:

• a rotatable drive shaft extending along a shaft rotation axis in an axial direction;
• a mounting head secured on an end of said drive shaft;
• tire mounting tools including a tire bead deflector and a tire pressing roller that are both carried by said mounting head;
• and
• a mechanical adjusting arrangement that is carried by said mounting head, and that is connected to said tire bead deflector, and that is connected to said tire pressing roller, and that is adapted to move said tire bead deflector and said tire pressing roller respectively along a plane orthogonal to said shaft rotation axis to respective radial positions adjusted to the wheel diameter of the vehicle wheel rim, and that is adapted to maintain a prescribed tangential angular position of said tire bead deflector and said tire pressing roller about said shaft rotation axis;
• wherein said adjusting arrangement comprises a push rod that is axially slidably arranged coaxially in said drive shaft and extends with an end section thereof into said mounting head, and a deflecting rod that is connected to said end section and is configured and adapted to redirect an axial motion of said push rod in said axial direction into at least one lateral motion orthogonal to said axial direction;
• wherein said adjusting arrangement further comprises two adjusting plates that are slidably carried by said mounting head to be slidable orthogonally to said axial direction, wherein each one of said adjusting plates respectively has an opening into which said deflecting rod respectively engages in a force-transmitting manner;
• wherein said deflecting rod extends laterally and obliquely from said push rod at an oblique angle relative to said axial direction, and wherein said deflecting rod is slidingly fittingly received separately in each said opening of each one of said adjusting plates, and wherein said deflecting rod is arranged and configured to slidingly displace said adjusting plates with said lateral motion orthogonal to said axial direction when said push rod is moved with said axial motion in said axial direction.

An apparatus for mounting a tire onto a vehicle wheel rim, wherein said apparatus is adjustable to mount tires having respective different tire sizes on wheel rims having respective different wheel diameters within a range of different wheel diameters, said apparatus comprising:

• a rotatable drive shaft extending along a shaft rotation axis in an axial direction;
• a mounting head secured on an end of said drive shaft;
• tire mounting tools including a tire bead deflector, a tire pressing roller, and optionally a following press roller, which are carried by said mounting head;
• and
• a mechanical adjusting arrangement that is carried by said mounting head, and that is connected to said tire bead deflector, and that is connected to said tire pressing roller, and that is adapted to move said tire bead deflector and said tire pressing roller respectively along a plane orthogonal to said shaft rotation axis to respective radial positions adjusted to the wheel diameter of the vehicle wheel rim, and that is adapted to maintain a prescribed tangential angular position of said tire bead deflector and said tire pressing roller about said shaft rotation axis;
• wherein said adjusting arrangement comprises first and second radial adjusting elements that are both movable in the same two opposed radial longitudinal directions, said tire pressing roller is secured to said first radial adjusting element, said tire bead deflector is secured to said second radial adjusting element, a first one of said tire mounting tools is always positioned along a radial line extending along said longitudinal directions through said shaft rotation axis, said first tire mounting tool has a fixed tangential angular orientation perpendicular to said radial line, a second one of said tire mounting tools is slidingly adjustable in said longitudinal directions offset from and parallel to said radial line, said second tire mounting tool is pivotable about a second tool pivot axis parallel to said axial direction, and said adjusting arrangement further comprises a mechanical tangential adjusting mechanism that is connected to said second tire mounting tool and adapted to pivot said second tire mounting tool about said second tool pivot axis to maintain a tangential angular orientation of said second tire mounting tool about said shaft rotation axis.