Patent classifications
B60C2009/2032
Tire Having An Optimized Architecture
Tire (1) for a vehicle, comprising a radially outermost working layer (41) which comprises at least one undulation (412) in line with a rib (26). The undulation (412) is such that it is radially on the outside of the points of the working layer (41) that are in line with the centre of the bottom face (243) of the circumferential groove (25) closest to the undulation (412) and that the minimum radial distance (do), between the radially outer surface of the radially outermost working layer (41) and the tread surface (21) is at least 1 mm less than the radial distance (dc) between the radially outer surface (ROS) of the radially outermost working layer (41) and the tread surface (21), which is the distance in line with the circumferential groove (25) closest to the undulation (412) concerned.
Tire Having An Optimized Architecture
Tire comprising major grooves with a depth at least equal to 4 mm and with a width at least equal to 1 mm. The radially outermost working layer (41) comprises at least one undulation (412). The undulation (412) is such that the undulation (412) portion of the working layer (41) represents at least 10% of the surface of the working layer (41), has an amplitude of at least 1 mm and is radially on the outside of the points of the working layer (41) that are in line with the bottom face (243) of the major groove (24) closest (412). All the layers of material (3, 6, 7) making up the radial stack of the crown structure (S) have mean surfaces parallel to that of the radially outermost working layer (41).
Pneumatic Tire
A pneumatic tire includes a carcass layer and belt layers including belt cords inclined with respect to a circumferential direction, the belt cords of different layers being arranged in a criss-cross manner. In at least one belt layer, an inclination angle ? of the belt cords with respect to the circumferential direction at a center position and an inclination angle ? of the belt cords with respect to the circumferential direction at a belt end position satisfy 15???<??35?. A maximum ground contact length L1 and a ground contact length L2 satisfy 0.8?L2/L1?1.0, where L1 is the maximum ground contact length in the circumferential direction, W1 is a maximum ground contact width in a radial direction, and L2 is the ground contact length in the circumferential direction at a position 40% of W1 from the center position outward in a lateral direction.
TIRE
An object is to protect a plurality of belt layers of a tire and suppress exposure of the belt layer. A plurality of the belt layer are arranged outside a carcass in a tire radial direction. A protective layer has an organic fiber cord extending along a tire circumferential direction, and is arranged outside the belt layer in the tire radial direction and in a tire width direction. A circumferential belt layer has a cord extending along the tire circumferential direction and is provided at least at the outermost side in the tire radial direction in the plurality of belt layers. An end of the protective layer is arranged on the inner side in the tire radial direction than the plurality of belt layers, in a region outer in the tire width direction than an outermost end of the plurality of belt layers.
ELASTOMERIC ARTICLES AS WELL AS DEVICES INCLUDING SAME AND METHODS OF MANUFACTURE
An elastomeric article can include an elastomeric body that is at least partially formed from an elastomeric material. The elastomeric body can include a first surface portion and a second surface portion facing opposite the first surface portion. A first plurality of reinforcing elements can be embedded within the elastomeric body between the first and second surface portions. The first plurality of reinforcing elements can have a first end and a second end opposite the first end with the first plurality of reinforcing elements having a non-linear pattern formed therealong between the first and second ends thereof. As examples, the elastomeric article can at least partially form one of pneumatic or non-pneumatic tire, a flexible spring member of a gas spring assembly and/or a turnup bladder dimensioned for securement on an associated tire building machine. Methods of manufacturing an elastomeric articles are also included.
ULTRA SUPER SINGLE TIRE FOR HEAVY DUTY
An ultra super single tire for heavy duty includes a tread that contacts the road surface; a carcass that constitutes the skeleton of the tire; and a belt layer that is disposed between the tread and the carcass, in which the belt layer is composed of a first belt to a fourth belt that are laminated sequentially from the carcass toward the tread, the first belt includes an extender belt, and the second belt is a wide spiral coil belt. Thus, an excessive increase in weight, the occurrence of excessive heat generation, and deterioration of durability can be prevented, while enhancing the ground contact length at the ground contacting center, and further enhancing the durability at belt layer edges.
PNEUMATIC TIRE FOR TWO-WHEELED AUTOMOTIVE VEHICLE
A band 12 includes a center portion C, a pair of intermediate portions M, and a pair of outer end portions E. The center portion C is formed from a first band member 40 and that extends in a circumferential direction. Each intermediate portion M is formed from a second band member 42 and that extends so as to form a mesh-like shape. The second band member 42 includes a plurality of first tilt portions 44 extending so as to be tilted relative to the circumferential direction and a plurality of second tilt portions 46 extending so as to be tilted relative to the circumferential direction in a direction opposite to a direction in which the first tilt portions 44 are tilted. Each outer end portion E is formed from a third band member 54 and that extends in the circumferential direction.
PNEUMATIC TIRE
In a tire 2, a band 16 has a jointless structure. A reinforcing layer 18 is layered over the band 16 from a radially outer side of the band 16. In the reinforcing layer 18, a reinforcing cord 40 is extended alternately on and between one end 32 portion of the band 16 and the other end 32 portion of the band 16, so as to extend in the circumferential direction. A direction in which the reinforcing cord 40 extends is tilted relative to the circumferential direction between one of ends 32 of the band 16 and the other of the ends 32 of the band 16. An absolute value of an angle of the reinforcing cord 40 relative to the circumferential direction is greater than or equal to 70.
Aircraft pneumatic tire
An object of the invention is to increase the room for elongation of a tread protection layer, while securing durability. An aircraft pneumatic tire 10 includes: a tread protection layer (12) that is provided at a lower layer of a tread section (22), and that includes plural cords (24) that arrayed in a tire width direction and are each disposed along a wave shaped imaginary line extending along a tire circumferential direction with the tire width direction as the amplitude direction; and cord discontinuity portions (14) where locations of close proximity of the cords (24) to each other are partially omitted in the tread protection layer (12).
Pneumatic radial tire for aircraft
Provided is a pneumatic radial tire for aircraft that includes a radial carcass constituting a backbone structure of the tire, a belt (6) disposed along an outer periphery of a crown region of the radial carcass, and at least one protective layer (7) disposed along an outer periphery of the belt (6) and formed by a plurality of cords (9). The cords (9) in the protective layer (7) are curved in a sinusoidal shape and disposed in parallel with equal phase. An acute inclination angle between an amplitude center line of each cord (9) relative to a tire circumferential direction, a half amplitude a of each cord (9), and a wavelength of each cord (9) satisfy the relationship: tan >2a/>0.4 (0<<90).