Tire rim and adapter
AssigneeThe Goodyear Tire & Rubber Company
InventorPierre J. R. Declercq
Life of this patent
Estimating the term…
Abstract
Adapters mounted between the beads of a tire and the respective bead seats of a standard rim to permit the mounting of oversize tires on standard rims. A first surface on an adapter is contoured to conform to and engage a respective rim bead seat and flange. A second surface on an adapter is contoured to conform to and engage a respective tire bead. The adapter may comprise an annular body, a pair of cores in the annular body, and a reinforcing ply enveloping the pair of cores.
Claims13
An adapter for adapting a rim to a tire having a bead diameter larger than the diameter of the rim bead seats, said rim having a bead seat extending generally parallel to the rotational axis of the rim and a flange which extends generally radially outwardly therefrom to normally engage the bead portions of a tire for mounting of a tire on the rim, and a tire having a bead core in a bead portion which has a radially inner seating surface and a surface which extends generally radially outwardly therefrom, the diameter of the radially inner seating surface of the bead portion of the tire being greater than that of the rim bead seat, said adapter comprising an annular body having a first surface which is contoured to conform to and engage the respective flange and bead seat of the rim, and a second surface having a bead seat which is contoured to conform to and engage the seating surface of the respective bead of the tire, and thereby provides a bead seat on the adapter located radially outwardly from the rim bead seat, when the adapter is mounted on the rim, a distance which is sufficient to locate the adapter bead seat at least partly radially outwardly of said rim flange, a pair of annular cores disposed within said annular body, and at least one reinforcing ply enveloping said pair of cores in said annular body, said cores in said annular body being spaced apart in a direction perpendicular to said axis a distance which is greater than the distance which they are spaced apart in a direction parallel to said axis, the radially outer core of said cores in said annular body being disposed at least in part radially outwardly of the respectively associated bead core in the tire, the radially inner core of said cores in said annular body being disposed at least in part in overlapping relationship to the respectively associated bead core in the tire in a direction parallel to said axis.
A rim and an adaptor for adapting said rim to a tire having a bead diameter larger than the diameter of the rim bead seats, said rim being provided with a pair of bead seats toward the axially outer edges of the rim which normally engage the bead portions of a tire for mounting of a tire on the rim, each said bead seat terminating at a flange which is disposed generally axially outwardly of and which extends generally radially outwardly from the respective bead seat, said adapter being engaged between said bead seat and a bead portion of a tire, said bead portion having a radially inner seating surface and a surface which extends generally radially outwardly therefrom, a bead core being disposed within said bead portion, the diameter of the radially inner seating surface of said bead portion being greater than the diameter of the bead seat of said rim, said adapter comprising an annular body having a first surface which is contoured to conform to and is engaged with a bead seat and flange of said rim, and a second surface which is contoured to engage with said surfaces of the bead portion of said tire, and thereby provides a bead seat on the adapter located radially outwardly from the rim bead seat a distance which is sufficient to locate the adapter bead seat at least partly radially outwardly of said rim flange, the annular body of said adapter further comprising a pair of annular cores disposed within said annular body, said cores being spaced apart in a direction perpendicular to the rotational axis of said rim a distance which is greater than the distance said cores are spaced apart in a direction parallel to said axis.
An adapter and rim, said rim having a bead seat and flange which normally engage the bead portion of a tire for mounting of a tire on said rim, said adapter and rim being useable with a tire having a bead portion which has a radially inner seating surface and a surface which extends generally radially outwardly therefrom, the diameter of the radially inner seating surface of the bead portion of the tire being substantially greater than the diameter of the bead seat of the rim, said adapter being engaged between the bead portion of said tire and bead seat of said rim and comprising an annular body having a first surface which is contoured to conform to and engage said bead seat and flange of said rim, and a second surface which is contoured to conform to and engage said surfaces of the bead portion of the tire, and thereby provides a bead seat on the adapter located radially outwardly from the rim bead seat a distance which is sufficient to locate the adapter bead seat at least partly radially outwardly of said rim flange, said rim further comprising a retainer for retaining the axial position of said adapter on said rim, said retainer including a raised portion of said rim adjacent and at least partially axially inwardly of said adapter.
The assembly of a rim, a tire and a pair of adapters for adapting said rim to a tire having a bead diameter larger than the diameter of the rim bead seats, said assembly comprising:
- (a) a rim provided with a pair of bead seats toward the axially outer edges of the rim which normally engage the bead portions of a tire for mounting of a tire on the rim, each said bead seat terminating at a flange which is disposed generally axially outwardly of and which extends generally radially outwardly from the respective bead seat;
- (b) a tire having a pair of annular bead portions, each bead portion having a radially inner seating surface and a surface which extends generally radially outwardly therefrom, each bead portion having a bead core disposed therein, the diameter of the radially inner seating surfaces of said bead portions being greater than the diameter of the bead seats of said rim;
- and
- (c) a pair of adapters, one of said adapters being engaged between each bead seat of said rim and the respective bead portion of said tire, such that said tire which may not otherwise be mountable on said rim is mounted on said rim, each said adapter comprising an annular body having a first surface which is contoured to conform to and is engaged with a bead seat and flange of said rim, and a second surface which is contoured to conform to and is engaged with said surfaces of the bead portion of said tire and thereby provides a bead seat on the adapter located radially outwardly from the rim bead seat a distance which is sufficient to locate the adapter bead seat at least partly radially outwardly of said rim flanges, the annular body of each adapter further comprising a pair of annular cores disposed within said annular body, said annular cores being spaced apart in a direction perpendicular to the rotational axis of said rim a distance which is greater than the distance said cores are spaced apart in a direction parallel to said axis.
Dependencies are inferred from the claim text.