Pneumatic Tire
AssigneeToyo Tire & Rubber Co., Ltd.
InventorToshihiko Takahashi
Life of this patent
Estimating the term…
Abstract
A pneumatic tire has a pair of bead portions, side wall portions, a tread portion, and a carcass ply rolled up in its end portion so as to pinch a bead filler. An outer surface of the side wall portion is provided with a concavo-convex region formed by arranging a lot of projecting lines extending in a tire circumferential direction in parallel in the tire diametrical direction, and an arranged density of the projecting lines becomes larger toward the outer side in the tire diametrical direction. An outer peripheral end of the concavo-convex region is positioned in the outer side than a position where an interface between a tread rubber and a side rubber is exposed, and an inner peripheral end of the concavo-convex region is positioned in an inner side than a leading end of the bead filler.
Claims8
A pneumatic tire comprising:
- a pair of bead portions in which a bead filler is arranged;
- side wall portions extending to an outer side in a tire diametrical direction from the bead portions;
- a tread portion connected to an outer side end in the tire diametrical direction of each of the side wall portions;
- and
- a carcass ply rolled up in its end portion in such a manner as to pinch the bead filler,
- wherein an outer surface of the side wall portion is provided with a concavo-convex region formed by arranging a lot of projecting lines extending in a tire circumferential direction in parallel in the tire diametrical direction, and an arranged density of the projecting lines becomes larger toward the outer side in the tire diametrical direction, and
- wherein an outer peripheral end of the concavo-convex region is positioned in the outer side in the tire diametrical direction than a position where an interface between a tread rubber arranged in the tread portion and a side rubber arranged in the side wall portion is exposed, and an inner peripheral end of the concavo-convex region is positioned in an inner side in the tire diametrical direction than a leading end of the bead filler.
A pneumatic tire comprising:
- a pair of bead portions in which a bead filler is arranged;
- side wall portions extending to an outer side in a tire diametrical direction from the bead portions;
- a tread portion connected to an outer side end in the tire diametrical direction of each of the side wall portions;
- and
- a carcass ply rolled up in its end portion in such a manner as to pinch the bead filler,
- wherein an outer surface of the side wall portion is provided with a concavo-convex region formed by arranging a lot of projecting lines extending in a tire circumferential direction in parallel in the tire diametrical direction, and a height of the projecting lines becomes larger toward the outer side in the tire diametrical direction, and
- wherein an outer peripheral end of the concavo-convex region is positioned in the outer side in the tire diametrical direction than a position where an interface between a tread rubber arranged in the tread portion and a side rubber arranged in the side wall portion is exposed, and an inner peripheral end of the concavo-convex region is positioned in an inner side in the tire diametrical direction than a leading end of the bead filler.
Dependencies are inferred from the claim text.