771results about "Tyre sidewalls" patented technology

Provided is a pneumatic radial tire for passenger vehicles in which the cross-sectional width SW of the tire and the outer diameter OD of the tire satisfy a predetermined relationship, and an end of the carcass (an end of a carcass turn-up portion when the carcass has the carcass turn-up portion) in one tire width-direction half that is on the inner side when the tire is mounted on a vehicle is located on the inner side in the tire radial direction than an end of the carcass turn-up portion in the other tire width-direction half that is on the outer side when the tire is mounted on a vehicle.

To provide a pneumatic tire that can suppress internal heat generation from increasing, reduce air resistance, improve steering stability on a wet road surface and improve driving performance on a dry road surface at the begging of driving.SOLUTION: A pneumatic tire 1 includes an outer wavy curved surface 30 formed on a tire side surface outside of a vehicle, of a pair of tire side surfaces and an inner wavy curved surface formed on a tire side surface inside of the vehicle. The wavy curved surfaces respectively are made wavy in a tire radial direction and in a tire circumferential direction so that the surfaces have a plurality of mountain-shape protrusions, in the tire radial direction and in the tire circumferential direction, on the corresponding tire side surfaces. Bottom edges of the plurality of outer mountain-shape protrusions 35 of the outer wavy curved surface constituting the plurality of mountain-shape protrusions do not overlap each other, in the tire circumferential direction, on outer mountain-shape protrusion rows 51 adjacently arranged in the tire radial direction. Bottom edges of the plurality of inner mountain-shape protrusions of the inner wavy curved surface overlap each other, in the tire circumferential direction, on inner mountain-shape protrusion rows adjacently arranged in the tire radial direction.SELECTED DRAWING: Figure 5

The present invention provides a tire which has a higher black density than conventional tires and which can achieve a higher contrast ratio. A tire (1) is provided with a pattern region (7) in at least a portion of the outer surface of a sidewall (3), the pattern region (7) being provided so as to be visible as a different portion from the periphery of the portion, the pattern region (7) being provided with a plurality of protrusions (110) protruding from a reference surface (7a), the protrusions (110) comprising: a recess (111) having an inverted conical or inverted pyramidal inner surface; an outer edge section (113) that surrounds the periphery of the recessed section (111); and a tapered main body section (112) connected to the reference surface (7a) from the outer edge section (113), the depth of the recessed section (111) being greater than the protruding height of the protrusion (110).

Tire that includes: on a tire outer surface, a first region including an uneven surface formed by a convex portion disposed throughout the entire first region, and a second region comprising an uneven surface formed by a plurality of webs arranged in parallel throughout the second region, the second region being arranged adjacent to the first region, wherein a minimum separation distance between vertices of the convex section in the first region is shorter than a minimum separation distance between vertices of two adjacent webs in the second region, the convex portion in the first region includes a unit pattern of a predetermined shape which is repeatedly arranged, the minimum separation distance between the vertices of the convex portion of the first region is 0.1 mm to 0.2 mm, the minimum separation distance between the vertices of two adjacent webs in the second region is greater than 0.5 mm and equal to or less than 1.5 mm, in a case where any unit pattern in the first area is designated as a standard unit pattern, and any position of a vertex of the standard unit pattern is designated as a standard position, a minimum separation distance from the standard position to a vertex of a unit pattern adjacent to the standard unit pattern is shorter than the minimum separation distance between the vertices of the two webs in the second region, and the minimum separation distance from the standard position to the vertex of the unit pattern adjacent to the standard unit pattern is 0.5 mm or less.

A pneumatic tire has a carcass. The carcass includes a carcass ply extending from one bead portion to the other bead portion through a tread portion. The carcass ply is provided with at least one conductive thread extending from one bead portion to at least the tread portion. The conductive thread has an electrical resistance of 108 Ω / cm or less per unit length. The conductive thread has a stress of 13 N or less at 1% elongation.

A pneumatic tire comprises: a tread portion; a pair of sidewall portions; a pair of bead portions each with a bead core embedded therein; a toroidal carcass extending between the bead portions; and a sidewall rubber disposed axially outside the carcass in each of the sidewall portions. The bead portion has a bead bottom surface which contacts with a bead seat of a wheel rim when the tire is mounted thereon. The bead bottom surface comprises an axially inner region including a bead toe and an axially outer region including a bead heel. The axially inner region is formed by a canvas chafer. The axially outer region is formed by the sidewall rubber extended radially inwardly from the sidewall portion.

To provide a pneumatic tire that can improve steering stability on a dry road surface at the time of turning a vehicle and improve braking performance on a wet road surface and abrasion resistance, while suppressing internal heat generation from increasing and reducing air resistance.SOLUTION: A pneumatic tire 1 includes an inner wavy curved surface 30 formed on a tire side surface inside of a vehicle, of a pair of tire side surfaces and an outer wavy curved surface formed on a tire side surface outside of the vehicle. The wavy curved surfaces respectively are made wavy in a tire radial direction and in a tire circumferential direction so that the surfaces have a plurality of mountain-shape protrusions, in the tire radial direction and in the tire circumferential direction, on the corresponding tire side surfaces. Bottom edges of the plurality of inner mountain-shape protrusions 35 of the inner wavy curved surface constituting the plurality of mountain-shape protrusions do not overlap each other, in the tire circumferential direction, on inner mountain-shape protrusion rows 51 adjacently arranged in the tire radial direction. Bottom edges of the plurality of outer mountain-shape protrusions of the outer wavy curved surface overlap each other, in the tire circumferential direction, on outer mountain-shape protrusion rows adjacently arranged in the tire radial direction.SELECTED DRAWING: Figure 5

The utility model discloses a high-air-tightness inflatable polyurethane tire, which relates to the technical field of tires and comprises a tire made of polyurethane materials, and blocky grains and longitudinal grains are arranged on the tread of the tire. A composite anti-puncture structure layer is embedded in the side wall of the tire, reinforcing frames are formed on the two sides of the outer wall of the tire, and the reinforcing frames and the tire are integrally formed. The reinforcing frame is composed of a plurality of concentrically-arranged reinforcing rings attached to the outer wall of the tire and a plurality of reinforcing strips sequentially connected with all the reinforcing rings in a penetrating mode, the reinforcing strips are attached to the outer wall of the tire, and the circle centers of the reinforcing rings coincide with the axis of the tire; the tire made of the polyurethane material has good air tightness, so that the internal air pressure of the tire can be kept stable, the influence of air pressure change on the tire performance and the vehicle controllability is reduced, and the service life of the tire is prolonged.

To provide a pneumatic tire which enables reduction of air resistance in a structure which has a plurality of ridges arranged in a tire circumferential direction on a tire side surface.SOLUTION: A tire which is one example of an embodiment includes a plurality of ridges 30 which are streaked projections formed on a tire side surface that is an outward surface in a tire axial direction located further inward in a tire radial direction than a ground contact end of a tread and further outward in the tire radial direction than a rim line. Each ridge extends outward in the tire radial direction in a range which inclines by 60 degrees to both sides in the tire circumferential direction with a direction along the tire radial direction of the tire side surface 13 set as a center. A ratio L / H of a distance L between centers of tops of the adjacent ridges 30 and a height H of the ridge is 2 or more and 6 or less.SELECTED DRAWING: Figure 3

The present invention relates to a vehicle tyre (1), the tyre comprising at least one sidewall (2) with at least one high-contrast sidewall element (3) consisting of a texture having a first luminosity L*1 of at least 1 and at most 15, wherein any adjacent sidewall surface portion (21) has a second luminosity L*2 of at least L*1+5. The invention discloses a rubber composition of the sidewall (2) that exhibits a good trade-off between tear strength and rolling resistance. According to the invention, the weight ratio of the reinforcing filler content to the plasticiser content is at most 4.50, the sum of the reinforcing filler content and the crumb rubber content is at least 30 phr and at most 70 phr, and the weight ratio of the crumb rubber content to the reinforcing filler content is at least 0.20 and at most 2.50.

The invention relates to a wheel protection device (100), comprising a tire sidewall protection device (110) including: a shield (112) having an annular shape; a ring (114) having an axis (B) and being integral with the shield and comprising: a connecting portion (114a) for the integral connection of the ring to the shield; a fastening portion (114b) for attaching to a wheel rim; According to the invention, the protection device further includes a removable heat shield (126) and a fastening device (122) for removably attaching the heat shield to the tire sidewall protection device. Figure 1

Including a tire processing device: a laser device configured to produce laser radiation (124); a control device which is configured to control the laser device and thereby process a marking (107) on a surface (102) of an air tire (100) with the laser radiation (124); wherein by processing a marking (106) with a first part (116) and a second part (118) is created which form an optical contrast.

A protruding knurling unit is proposed. The protruding knurling unit may include a first knurling portion extending at an incline with respect to a bottom surface, and a plurality of second knurling portions each extending at an incline with respect to the bottom surface. The first knurling portion may include a first knurling portion bottom. Each of the plurality of second knurling portions may include a second knurling portion bottom. A distance between the second knurling portion bottoms of the plurality of second knurling portions may be shorter than a length of the first knurling portion bottom.

To provide a pneumatic tire that can release static electricity accumulated on the vehicle to the road surface without compromising its worn appearance. [Solution] The pneumatic tire 1 includes a conductive thread 10 extending inward and outward in the radial direction of the tire within the tread rubber 2G, and a conductive path 30. The conductive thread 10 includes at least one exposed portion 10A exposed to the contact surface 2s and a contact portion 10B in contact with the conductive path 30. The conductive path 30 is configured to electrically conduct the conductive thread 10 and the rim R when the pneumatic tire 1 is mounted on the rim R.

This invention relates to pneumatic tires. A pneumatic tire that produces a novel visual effect is provided. The pneumatic tire has: a sidewall (10) having a curved profile; and a decorative area (11) disposed on the sidewall (10). The pneumatic tire is characterized in that a plurality of rhomboid planes (20) and a plurality of planes (21), (22) of partial rhomboid shapes cover the decorative area (11) in a manner where the edges and vertices of the rhombus are consistent with each other. Two planes (20, 21, 22) with different perpendicular directions are arranged radially in the tire, and the vertices of the junction of the two planes (20, 21, 22) arranged radially in the tire are protruding vertices (23, 24) protruding in the direction normal to the profile.

To provide a pneumatic tire of an outer apex structure, which improves durability performance of a toe of bead.SOLUTION: In a pneumatic tire, a reinforcement rubber layer adjacent to the tire-axial-direction outside of a folded part is arranged on at least one of a pair of toes 4 of bead. The reinforcement rubber layer includes a first rubber layer 11, and a second rubber layer 12 that is arranged on the tire-axial-direction outside of the first rubber layer 11. The loss tangent tanδ1 of the first rubber layer 11 is smaller than the loss tangent tanδ2 of the second rubber layer 12.SELECTED DRAWING: Figure 2

To provide a heavy load tire 2 which can be reduced in weight and can achieve improvement of SFC resistance.SOLUTION: In a meridian cross section of a tire 2, a contour CL of a carcass 12 has: a curved portion 44 expanded outward; and a reverse curved portion 46 which is provided at radial inside of the curved portion 44 and dents inward. The reverse curved portion 46 is connected to the curved portion 44. A boundary between the curved portion 44 and the reverse curved portion 46 is a flexion point PV. A part or whole of the curved portion 44 is expressed by a first arc including the flexion point PV. A part or whole of the reverse curved portion 46 is expressed by a second arc including the flexion point. The first and second arcs come in contact with each other at the flexion point PV. A side surface 48 of the tire 2 has; a recessed portion 50 which hollows inward; an outside portion 52 which is located at radial outside of the recessed portion 50; and an inside portion 54 which is located at radial inside of the recessed portion 50. The recessed portion 50 is located at radial outside of the flexion point PV.SELECTED DRAWING: Figure 5

The present invention relates to a vehicle tyre (1), the tyre comprising at least one sidewall (2) with at least one high-contrast sidewall element (3) consisting of a texture having a first luminosity L*1 of at least 1 and at most 15, wherein any adjacent sidewall surface portion (21) has a second luminosity L*2 of at least L*1+5. The invention discloses a rubber composition of the sidewall (2) that exhibits a good trade-off between blooming reduction and ozone attack resistance. According to the invention, the elastomer matrix comprises an isoprene elastomer at a content of at least 35 phr and at most 65 phr and a butadiene elastomer at a content of at least 35 phr and at most 65 phr, the reinforcing filler content is at least 5 phr and at most 70 phr, the anti-ozonant wax content is at least 1.2 phr and at most 2.8 phr, and the crumb rubber content is at least 2 phr and at most 30 phr.

To provide a tire in which a density of a black color can be increased more than before to enhance contrast and which is excellent in formability.SOLUTION: In a tire 1, a pattern region 7 is formed visibly, as a site that is different from a circumference of at least a portion of an outer surface of a side wall 3, on the portion. A plurality of protrusions 110 protruding from a reference surface 7a are formed on the pattern region 7. The protrusion 110 has a recessed part 111 having a mortar-shaped inner surface, a cone-shaped trunk part 112 forming an outer periphery of the protrusion 110 and extending in a cone shape in a protruding direction of the protrusion 110 from the reference surface 7a, and an outer edge part 113 surrounding the circumference of the recessed part 111. A protruding height of the protrusion 110 is 0.6 mm or more and 1.4 mm or less, and a depth of the recessed part 111 is 30% or more and 70% or less of the protruding height of the protrusion 110.SELECTED DRAWING: Figure 3

The utility model belongs to the technical field of tires, and particularly relates to a pneumatic tire with an asymmetric structure, which comprises a left half tire and a right half tire which are positioned on two sides of a central axis, the width A1 of a first-layer steel belt of the left half tire is smaller than the width A2 of a first-layer steel belt of the right half tire, the width B1 of a second-layer steel belt of the left half tire is smaller than the width B2 of the second-layer steel belt of the right half tire, and A1 / A2 is equal to B1 / B2; the distance H1 on a cord fabric roll of the left half tire is larger than the sidewall height SH1 below the horizontal axis of the section of the pneumatic tire and is larger than the distance H2 on the cord fabric roll of the right half tire, and the difference value of the H1, the SH1 and the H2 is larger than 5 mm; the width SP1 of the cord fabric reinforcing layer of the left half tire is larger than the width SP2 of the cord fabric reinforcing layer of the right half tire, and the triangular height BF1 of the left half tire is larger than the triangular height BF2 of the right half tire. The pneumatic tire disclosed by the utility model not only shows excellent road holding force and skid resistance during high-load and high-speed driving, but also can prolong the service life of the pneumatic tire and reduce the maintenance cost.

The utility model discloses a tire, which belongs to the technical field of tires, and is characterized in that the tire comprises a crown part, and the crown part comprises tread rubber, a bonding rubber layer, a first belted layer, a second belted layer, a carcass ply and a lining layer in sequence from outside to inside; the tread rubber, the bonding rubber layer, the first belted layer, the second belted layer, the carcass ply and the lining layer are sequentially connected, the first belted layer is made of a material with tensile property, nylon, polyester or aramid fiber is adopted as the material with the tensile property, the second belted layer is a steel wire belted layer, and the steel wire belted layer is made of nylon, polyester or aramid fiber. The effect of improving the comfort and the coating performance of the tire is achieved.

A vehicle tire having a sidewall with at least one sidewall decoration that extends at least over a circumferential portion of the sidewall and is made up of structured surface elements, smooth surface elements and base hatching that adjoins these surface elements and is made up of hatching ribs that extend without branching and intersecting, wherein the structured surface elements reproduce a copy or a shadow at least of partial regions of smooth surface elements, and the structured surface elements absorb light to a greater extent than the base hatching. The structured surface elements are each provided with an area-covering contrast structure with branched rib portions, wherein each branched rib portion has intersection points from which the rib portion respectively extends in at least three directions.

To provide a tire which can exhibit excellent visibility in a concave mark of a side wall part.SOLUTION: A tire includes a pair of side wall parts 3. An outer surface 3s of at least one of the pair of side wall parts 3 includes at least one concave mark 5 recessed from a reference surface. The concave mark 5 includes a bottom surface 6, and an inner wall surface 7. The bottom surface 6 includes a peripheral edge region 10, and a main region 9. The peripheral edge region 10 includes a shadow region 11, and a non-shadow region 12. The shadow region 11 and the non-shadow region 12 are formed of uneven surfaces 15 where a plurality of minute projections 20 are arranged. A width W2 measured in a direction perpendicular to a contour 5o of the uneven surface 15 of the non-shadow region 12 is smaller than a width W1 measured in a direction perpendicular to the contour 5o of the uneven surface 15 of the shadow region 11.SELECTED DRAWING: Figure 1

The invention relates to a hubcap for a rim of a wheel of a motor vehicle. The hubcap (2) comprises a hubcap body (4) delimited by an outer face (6) and an inner face (8). The inner face (8) is intended to face a rim (10) of a wheel and the hubcap body (2) is delimited by an outer edge (12). The invention is remarkable in that the hubcap body (4) is crossed by at least two diametrically opposed passages (14), and each passage (14) is of sufficient dimensions to allow a user to actuate a locking device (16) present on the side of the inner face (8) of the hubcap body. Each locking device (16) comprises a lever (18) operable by a user, through a passage (14), and the lever (18) makes it possible to reversibly vary the distance between an appendage (20) and the internal face (8) of the hubcap body. Figure 2