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US 7,922,261 B2Granted
Cast wheel
AssigneeAustria Alu-Guss Gesellschaft M.B.H.
InventorJosef Gartner
Life of this patent
Estimating the term…
Abstract
The invention relates to a cast wheel having a wheel rim base, a rear edge region, and a front edge region, wherein the front edge region is coupled to the rear edge region via the wheel rim base. The cast wheel includes at least one reduced-material portion structured and arranged in the rear edge region and a circumferential bead arranged in a rearward portion of the rear edge region, wherein at least a part of the reduced-material portion is located in a region of the circumferential bead and is structured and arranged to widen radially inward from a radially outwardly located vertex region towards a leveling-off end.
Claims23
A cast wheel comprising:
- a wheel rim base, a rear edge region, and a front edge region, wherein the front edge region is coupled to the rear edge region via the wheel rim base;
- the rear edge region having a greater thickness than the wheel rim base;
- at least one reduced-material portion structured and arranged in the rear edge region;
- a circumferential bead arranged in a rearward portion of the rear edge region;
- the circumferential bead having a thickness that is greater than a second portion of the rear edge region, which axially inwardly adjoins the circumferential bead;
- and
- a vertex region being arranged in the circumferential bead, wherein the vertex region is arranged radially outwardly of the second portion of the rear edge region and the wheel rim base,
- a first portion of the at least one reduced-material portion is being defined by an inwardly curved edge in an area of an annular surface of the circumferential bead whose peak is defined by the vertex region,
- wherein the first portion widens radially inward from the vertex region towards a center axis of the cast wheel, and
- wherein the second portion of the at least one reduced-material portion is arranged adjacent to and axially inwardly of the first portion.
7 more elements
A cast wheel comprising:
- a wheel rim base, a rear edge region, and a front edge region, wherein the front edge region is coupled to the rear edge region via the wheel rim base;
- at least one reduced-material portion structured and arranged in the rear edge region;
- a circumferential bead arranged in a rearward portion of the rear edge region;
- the circumferential bead having a thickness that is greater than a second portion of the rear edge region, which axially inwardly adjoins the circumferential bead;
- and
- a radially outwardly located vertex region being arranged in a region of the circumferential bead,
- wherein at least a part of the reduced-material portion is located in the region of the circumferential bead and is structured and arranged to widen radially inward from the radially outwardly located vertex region towards a center axis of the cast wheel, and
- wherein the wheel rim base is cylindrical and has an axial width that is greater than an axial width of the rear edge region, wherein a first portion of the at least one reduced-material portion is defined by an inwardly curved edge in an area of an inner circumferential surface and a second portion is defined by an inwardly curved edge in an area of a straight annular surface whose peak is defined by the radially outwardly located vertex region, wherein a thickness defined by a diameter of the peak and an outer circumference of the circumferential bead is less than a thickness defined by the diameter of the peak and the inner circumferential surface, and wherein a diameter of a rear tire bead receiving area is less than a diameter of the peak.
5 more elements
A cast wheel comprising:
- a wheel rim base arranged between a front edge region and a rear edge region having a circumferential bead;
- a rear tire bead receiving area arranged in the rear edge region between the circumferential bead and a circumferential projection arranged between the wheel rim base and the circumferential bead;
- a diameter of the rear tire bead receiving area being less than a diameter of the circumferential projection;
- plural spaced apart reduced-material portions each arranged in the rear edge region;
- each reduced-material portion having a first portion that is arranged on an inner circumferential surface underneath the tire bead receiving area and between an end of the wheel rim base and a straight annular surface of the rear end region and a second portion extending to the straight annular surface and arranged underneath the circumferential bead;
- a vertex region being located where the second portion meets the straight annular surface of each reduced-material portion;
- a diameter of an imaginary circle defined by the vertex regions being greater than the rear tire bead receiving area;
- each of the first and second portions being inwardly curved, having a changing diameter between the wheel based and the straight annular surface, and being connected by a step-shaped transition,
- wherein one of:
- a diameter of each reduced-material portion increases between the wheel rim base and the straight annular surface and an axial width of the wheel rim base is greater than an axial width of each reduced-material portion;
- and
- a diameter of each reduced-material portion increases in the first portion between the wheel rim base and the straight annular surface and increases in the second portion by a greater amount between the first portion and the straight annular surface and an axial width of the wheel rim base is greater than an axial width of each reduced-material portion.
9 more elements
Dependencies are inferred from the claim text.