Method of producing a toroidal road vehicle tire carcass, and carcass produced thereby
AssigneeBridgestone Corporation
InventorKarl J. Siegenthaler
Life of this patent
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Abstract
A toroidal road vehicle tire carcass comprises two annular beads connected by a substantially tubular toroidal reticulated structure defined by a number of elongated reinforcing elements extending between and substantially radially in relation to the beads. The carcass is produced using at least one continuous cord for forming a first and a second continuous series of oppositely-oriented U-shaped loops, wherein the loops in both series are connected so as to weave the substantially tubular reticulated structure enclosing the two beads.
Claims9
A toroidal road vehicle tire carcass comprising two annular beads, and a substantially tubular reticulated structure connecting the two beads;
- said structure comprising a number of elongated reinforcing elements extending between and substantially radially in relation to the beads;
- each of said elongated reinforcing elements being formed from at least one continuous cord wound into a first and a second continuous series of oppositely-oriented U-shaped loops, each loop in each series being inserted through an intermediate portion of each respective loop in the other series to weave said tubular toroidal reticulated structure enclosing the two beads;
- each intermediate U-shaped portion of one of the loops extending through the other of said loops forming a link between said two loops;
- said link being one of a series of links extending along and adjacent to each of said beads, with said intermediate portions extending between said links being substantially parallel.
A method of producing a toroidal road vehicle tire carcass comprising two annular beads, and a substantially tubular toroidal reticulated structure connecting the two beads comprising a number of elongated reinforcing elements located between and extending substantially radially in relation to the beads;
- said method comprising the steps of forming said elongated reinforcing elements by winding at least one continuous cord into a first and a second continuous series of oppositely oriented U-shaped loops such that each oppositely oriented U-shaped loop includes an intermediate U-shaped portion, a first end and a second end;
- weaving the loops in said two series in such a manner as to form said substantially tubular toroidal reticulated structure by inserting both the first and second ends of each U-shaped loop in each series through a respective intermediate portion of a respective loop in the other series so as to form a link between said two loops and produce a looped reticulated structure having a series of such links extending along and adjacent to each of said beads and simultaneously enclosing the two beads, with said intermediate portions extending between said links being substantially parallel.
Dependencies are inferred from the claim text.