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US 7,882,882 B2Granted
Tire changing machine
AssigneeHennessy Industries, Inc.
InventorCharles L. Cunningham
Life of this patent
Estimating the term…
Abstract
A tire changing machine for changing difficult to mount tires is provided. The machine utilizes various implements configured about the machine's chassis in such a way that they do not interfere with each other's operation. In this way, the machine enables an operator to effectively change various tires.
Claims14
A tire changing machine comprising:
- a chassis having a polygonal structure defining a back, front and first and second lateral sides, said first lateral side and said back side defining a first corner location and said second lateral side and said back side defining a second corner location;
- a rotatable turntable configured to retain a wheel rim;
- a tiltable tower at said second corner location and carrying a mount/demount head movable toward and away from the wheel rim in a plane angularly offset from a back-to-front axis of said chassis extending transverse to a rotational axis of said turntable;
- a fixed support tower at said first corner location, said support tower carrying at least one roller assembly;
- a plurality of pedal actuators located on said first lateral side of said chassis, said actuators being operative to control operation of at least said turntable;
- and,
- wherein the tiltable tower tilts toward the turntable from a position generally diagonally across the chassis from said pedal actuators.
4 more elements
A tire changing machine comprising:
- a chassis having a polygonal structure defining a back, front and first and second lateral sides, said first lateral side and said back side defining a first corner location and said second lateral side and said back side defining a second corner location;
- a rotatable turntable configured to retain a wheel rim;
- a tiltable tower at said second corner location and carrying a mount/demount head movable toward and away from the wheel rim;
- a plurality of pedal actuators located on said first lateral side of said chassis, said actuators being operative to control operation of at least said turntable;
- a tire lift mechanism mounted adjacent to said chassis, said tire lift mechanism including a lift arm that pivots away from said chassis to raise a tire to a higher level;
- a horizontal roller assembly having at least one roller, the horizontal roller assembly being located adjacent said back side of said chassis at said first corner location on a fixed support;
- a helper arm assembly located adjacent said back side of said chassis, said helper arm assembly having a contact block for engaging a sidewall of a vehicle tire as the tire is rotated using the turntable;
- a roller arm assembly located adjacent said back side of said chassis on said fixed support, said roller arm assembly including a pivotal arm having a fluid actuated cylinder located at a distal end thereof, said fluid actuated cylinder carrying a roller head for engaging a sidewall of a vehicle tire;
- and
- a bead loosening assembly located at said second lateral side of said chassis.
7 more elements
Dependencies are inferred from the claim text.