Patent classifications
B60C2015/0642
PNEUMATIC TIRE
A pneumatic tire has a rubber hardness higher than a rubber hardness of a rim cushion rubber, and includes a reinforced rubber between a turned back portion of a carcass layer and a sidewall rubber and between the turned back portion and the rim cushion rubber. A height H1 of a bead filler based on a measuring point of a rim diameter has a relationship of 0.10≤H1/SH≤0.23 with respect to a tire cross-sectional height SH. A height H2 of the reinforced rubber based on the measuring point of the rim diameter has a relationship of 0.40≤H2/SH≤0.55 with respect to the tire cross-sectional height SH. A cross-sectional area S2 of the reinforced rubber in a cross-sectional view in a tire meridian direction has a relationship of 1.10≤S2/S1≤2.70 with respect to a cross-sectional area S1 of the bead filler.
TIRE
A tire includes: a pair of beads having a bead core and a bead filler which extends to an outer side in the tire-radial direction of the bead core; a carcass ply including a ply body which extends from one bead core to another bead core, and a ply folding part which is folded back around the bead core; a steel side ply serving as a metal reinforcement layer provided between the ply folding part and the bead filler; and an RFID tag serving as an electronic component provided between the bead filler and the ply body.
TIRE
The bead portion of the pneumatic tire includes a bead structure having a bead core composed of a bead cord, and an annular plate which extends to the tire circumferential direction and is formed of a resin material. The annular plate has a planar first annular ring portion extending to the tire circumferential direction and a second annular ring portion positioned outside the tire radial direction of the first annular portion and extending to the tire circumferential direction, the first annular portion is provided along the bead structure, and the second annular portion is further inclined to the outside in tire width direction of the first annular portion.
TIRE
A body portion and a part of a folded portion of a carcass of a pneumatic tire are formed by a plurality of plies. The pneumatic tire is provided with a flipper folded from the inside in the tire width direction to the outside in the tire width direction via a bead core to cover the bead core and a bead filler, and an insert is provided between the bead filler and a flipper folded to the outside in the tire width direction. In at least a part of the region where the insert is provided, the thickness and the thickness of a side rubber are substantially the same as the ply thickness obtained by combining the body portion and the folded portion.
Tire and tire manufacturing method
A tire includes: a bead core; a bead filler extending to an outer side in the tire-radial direction of the bead core; a carcass ply which is folded back around the bead core; a pad member disposed on an outer side in the tire-width direction of the bead filler; and a first rubber sheet disposed in a state covering a folding end of the carcass ply which is folded back, between the bead filler and the pad member, in which a second rubber sheet covering an electronic component is disposed between the bead filler and the pad member on an outer side in the tire-radial direction of the first rubber sheet.
TIRE
Provided is a tire including a tread portion. The tread portion includes two circumferential grooves and three land portions. The three land portions include a crown land portion disposed on a tire equator, and two shoulder land portions including tread contact ends. At least one of the shoulder land portions includes a plurality of main inclined grooves and a plurality of subsidiary inclined grooves. The main inclined grooves have tire-axially inner ends ending in the shoulder land portions and tire-axially outer ends disposed outwardly of the tread contact ends Te in the tire axial direction. The subsidiary inclined grooves have tire-axially inner ends ending in the shoulder land portions and tire-axially outer ends ending in the shoulder land portions.
AIRCRAFT TIRE
Provided is an aircraft tire which has both satisfactory light weight and satisfactory separation durability of carcass ply ends. An aircraft tire (10) includes a pair of bead cores (1), and a carcass (2) extending between the pair of the bead cores (1). In this aircraft tire (10), the carcass (2) includes at least one layer of a turn-up ply (2a) which is composed of a main body (2aa) and folded portions (2ab), and at least one layer of a down ply (2b) which covers a tire width-direction outer side of the respective folded portions (2ab) of the turn-up ply (2a) and extends to at least a tire radial-direction inner side of the respective bead cores (1); rubber-cord reinforcing members (6) are each arranged between the main body (2aa) of an outermost turn-up ply (2a) and the folded portion (2ab) of the turn-up ply (2a) extending to a tire radial-direction outermost side, and between the folded portion (2ab) of the turn-up ply (2a) extending to the tire radial-direction outermost side and an innermost down ply (2b); and cords of the rubber-cord reinforcing members (6) have an elongation at break of not less than 30%.
Pneumatic tire
A pneumatic tire has a rim strip rubber. A radial height of the rim strip rubber on the basis of an outer diameter position of a bead core is equal to or more than 70% of a radial height of a tire outer diameter position. An upper end of a side reinforcing layer is arranged closer to an outer side radially than an upper end of a bead filler. A distance from a tire maximum width position to the upper end of the side reinforcing layer is equal to or less than 5 mm. The maximum thickness Tw of the rim strip rubber between the upper end of the bead filler and the upper end of the side reinforcing layer is greater than the maximum thickness Tm of the rim strip rubber closer to the outer side radially than the upper end of the side reinforcing layer.
TIRE AND TIRE MANUFACTURING METHOD
A tire includes a bead core; a bead filler which extends to an outer side in a tire-radial direction of the bead core; a carcass ply which extends from the bead core to another bead core, and is folded back around the bead core; a pad member which is disposed at an outer side in a tire-width direction of the bead filler; and a rubber sheet which is disposed between the bead filler and the pad member in a state covering a folding end of the carcass ply which has been folded back, in which an RFID tag serving as an electronic component is provided between the rubber sheet and the pad member.
TIRE HAVING A REINFORCED LOWER ZONE
A tire for a motor vehicle comprising: two beads (20); two sidewalls (30) meeting at a crown (25); at least one carcass reinforcement (160) extending from the beads (20) through the sidewalls (30) as far as the crown (25), the carcass reinforcement (160) having a plurality of carcass reinforcing elements and anchored in the two beads (20) by a turn-up around the annular reinforcing structure (70), so as to form in each bead a main strand (162) and a turn-up strand (163); and a stiffening reinforcement (140) arranged in at least one sidewall of the tire, said stiffening reinforcement (140) having a radially inner end (141) and a radially outer end (142), the stiffening reinforcement being formed of a plurality of stiffening elements oriented at an angle less than or equal to 10 relative to a circumferential direction of the tire.