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TIRE ANTI-SLIP DEVICE

Thu, 27 Oct 2016 08:00:00 EDT

To obtain a tire anti-slip device including an anti-slip body having a tread portion making contact with the ground, inner and outer link portions formed to protrude respectively from the tread portion to the tire inner and outer sides, and a tightener configured to tightly fit the body to the tire, and can prevent removal of the body from the tire inner or outer side direction in the tightener operation so that the tire anti-slip device can be mounted to a tire optimum position with a simple manipulation, a wire guide portion capable of guiding the tightening wire in the body width direction is formed in a position of one end portion of the body, and one end position (of the wire guide member) and the other end position of the body approach each other in both positions of the inner and outer link portions by tightening the tightening wire.



Pneumatic Tire

Thu, 27 Oct 2016 08:00:00 EDT

A pneumatic tire according to the present technology comprises at least one mechanical fastener member attached to a tire inner surface; and an outer surface mark provided on a tire outer surface, the outer surface mark showing a corresponding position in a tire rotation direction corresponding to the position where the mechanical fastener member is attached to the tire inner surface.



TIRE HAVING STATIC CHARGE DISSIPATION ELEMENT

Thu, 27 Oct 2016 08:00:00 EDT

Various embodiments of a tire and tire tread having a static charge dissipation element are provided.



Reinforced Cross-Ply or Radial-Tire

Thu, 27 Oct 2016 08:00:00 EDT

The invention relates to a tire having at least one carcass reinforcement (2) comprising reinforcers, surmounted radially on the outside by a crown reinforcement (3) comprising two axial ends S, itself radially on the inside of a tread (4), said crown reinforcement (3) being made up of at least one layer of reinforcement elements, said tread (4) being connected to two beads (5) by way of two sidewalls (6), said beads (5) being intended to come into contact with a rim flange having a rim flange top C, each bead having at least one circumferential reinforcement element (7) known as a bead wire, said carcass reinforcement (2) comprising an end (8) at each bead (5), the end (8) of the carcass reinforcement (2) being turned up once in an outward radial direction of the tire and about said bead wire, so as to form a turnup, then being folded in the radially outward direction so as to form a fold of the carcass ply (2), said fold forming a radially external end (12a) and three adjacent parts along an axial axis made up of a central part (10), of an axially internal lateral part (11), and of an axially external lateral part (0), the fold being executed in an outward axial direction with respect to the centre of the tire, characterized in that a decoupling elastomer composition (14) having a secant modulus at 10% extension of greater than or equal to 10 MPa and preferably greater than or equal to 30 MPa and less than or equal to 60 MPa is present between the axially internal lateral part and the central part of said turnup, and at the radially external end (12a) of said turnup (12), said elastomer composition being present along a radial length comprised between the radially external end of the turnup and a radially internal point F with respect to the end of said turnup, said point being situated on the sidewall and at a distance from said radially external end by a length greater than 10 mm, and in that the radially external end (12a) of the turnup (12) is disposed between the rim flange top C and a point D, said points C and D being situated at the surface of the sidewall (6) and disposed on either side of a point E situated on the sidewall corresponding to the nominal section width, said point D being disposed at a maximum radial length equal to 85% of the length present between the axial end S of the crown reinforcement (3) and the rim flange top C.



Reinforced Bias- Or Radial-Carcass Tire

Thu, 27 Oct 2016 08:00:00 EDT

The invention relates to a tire having at least one carcass reinforcement comprising reinforcers, surmounted radially on the outside by a crown reinforcement, itself radially on the inside of a tread, said crown reinforcement being made up of at least one layer of reinforcement elements, said tread being connected to two beads by way of two sidewalls, said beads being intended to come into contact with a rim flange having a rim flange top C, each bead having at least one circumferential reinforcement element, said carcass reinforcement comprising an end at each bead, the end of the carcass reinforcement being turned up once in an outward radial direction of the tire and about said bead wire, so as to form a turnup, then being folded in said radially inward direction so as to form a fold forming a radially external end and three adjacent parts along an axial axis made up of a central part, of an axially internal lateral part, and of an axially external lateral part. The tire is characterized in that the radially external end of the turnup is disposed between the rim flange top C and a point D, said points C and D being situated at the surface of the sidewall and disposed on either side of a point E situated on the sidewall corresponding to the nominal section width, said point D being disposed at a maximum radial length equal to 85% of the length present between the axial end S of the crown reinforcement and the rim flange top C.



TIRES AND OTHER OBJECTS HAVING AN AERODYNAMIC/HYDRODYNAMIC SURFACE TREATMENT

Thu, 27 Oct 2016 08:00:00 EDT

Various embodiments of a tire, and other objects, having an aerodynamic and/or hydrodynamic surface treatment are disclosed.



Pneumatic Tire

Thu, 27 Oct 2016 08:00:00 EDT

Provided is a pneumatic tire which includes a tire tread section provided with a plurality of stud pin inserting holes in a tread surface and a plurality of stud pins inserted into the holes. The holes each include a securing portion coming into contact with an entire periphery of each of the stud pins to secure the stud pin. The securing portion includes a protrusion provided on an inner wall thereof, the protrusion extending in a depth direction of the holes and guiding claws of a pin driver in the depth direction of the holes, the pin driver driving the stud pins into the holes. The protrusion deforms to match an outer peripheral surface of the stud pin inserted into each of the holes, such that an entire surface of the protrusion comes into contact with the outer peripheral surface of the stud pin.



TREAD BAND HAVING BLOCKS AND FINE GROOVES ON THE BLOCKS

Thu, 27 Oct 2016 08:00:00 EDT

The disclosure relates to a tread band made of rubber-like material for a tire for winter travel. The tread band comprises a plurality of blocks with each block including a contact face designed to come into contact with the ground when the tire travels, the contact face having a plurality of sipes lot fined therein and a plurality of fine grooves shallower than the sipes. Each block includes a least one lateral face, this lateral face is covered by a covering material, the covering material having a modulus of elasticity which is greater than the modulus of elasticity of the rubber-like material forming the block.



TREAD BAND HAVING CURVED BLOCKS WITH COVERING MATERIAL

Thu, 27 Oct 2016 08:00:00 EDT

The disclosure concerns a tread band made of rubber-like material for a tire, said tread band including two sides with a predetermined distance D between these two sides and a center. The tread band having a plurality of blocks, each block extending continuously in a curved manner to one side of the tread band towards the center of this tread band, the block following a certain curvature C. Each block includes at least one lateral face, this lateral face is covered totally by a covering material, the covering material having a modulus of elasticity which is greater than the modulus of elasticity of the rubber-like material forming the block.



HEAVY DUTY PNEUMATIC TIRE

Thu, 27 Oct 2016 08:00:00 EDT

This heavy duty pneumatic tire includes a block (6) on a tread surface (1). Shallow grooves are provided in the block. At least one of the shallow grooves (7, 9, 31, 32) is a raised bottom shallow groove that is in communication with at least one groove among circumferential grooves and transverse grooves adjacent to the block, extends in a direction intersecting the tire circumferential direction at least in a central portion of the block in the tire width direction, and has a groove depth that is shallower in the central portion of the block in the tire width direction than at an end of the raised bottom shallow groove in the tire width direction, thereby increasing block rigidity while achieving good mud drainage.



TAPE ELEMENT CONTAINING RIPSTOP RIDGES

Thu, 27 Oct 2016 08:00:00 EDT

A tape element having at least a first layer containing a first thermoplastic polymer, at least one ripstop ridge in a surface of the tape, and at least one reciprocal elongated hill in the opposite surface of the tape, where the ridges and hills in the two surfaces are in registration. The ripstop ridges have an aspect ratio of width to height of between about 1:5 and 10:1, has a height at least 10% of the thickness of the tape in the segments, and extend along at least a portion of the length of the tape. Rubber articles containing the tape element are also disclosed.



TAPE ELEMENT CONTAINING CRACK PROPAGATION CHANNELS

Thu, 27 Oct 2016 08:00:00 EDT

A tape element having at least a first layer containing a first thermoplastic polymer, at least one crack propagation channel in a surface of the tape, and at least one reciprocal channel in the opposite surface of the tape, where the channels in the two surfaces are in registration. The crack propagation channel has an aspect ratio of width to depth of between about 1:5 and 10:1, has a depth at least 10% of the thickness of the tape in the segments, and extend along at least a portion of the length of the tape. Rubber articles containing the tape element are also disclosed.



TAPE ELEMENT CONTAINING CRACK PROPAGATION CHANNELS AND RIPSTOP RIDGES

Thu, 27 Oct 2016 08:00:00 EDT

A tape element having at least a first layer containing a first thermoplastic polymer, at least one crack propagation channel in a surface of the tape and at least one ripstop ridge in a surface of the tape. The crack propagation channel has an aspect ratio of width to depth of between about 1:5 and 10:1, has a depth at least 10% of the thickness of the tape in the segments, and extend along at least a portion of the length of the tape. The ripstop ridge has an aspect ratio of width to height of between about 1:5 and 10:1, has a height at least 10% of the thickness of the tape in the segments, and extends along at least a portion of the length of the tape. Rubber articles containing the tape element are also disclosed.



TIRE INNER LINER AND PNEUMATIC TIRE

Thu, 27 Oct 2016 08:00:00 EDT

To provide a tire inner liner formed by using a cylindrical film (10) including a thermoplastic material and obtained by inflation molding, in which a ratio of breaking strength in a tire width direction (14) to breaking strength in a tire circumferential direction (18) of the cylindrical film (10) is from 1.35 to 1.80. A pneumatic tire (1) is obtained by extruding and molding the cylindrical film (10) in which a ratio of breaking strength in an extrusion direction (12) to breaking strength in a direction perpendicular to the extrusion direction (16) is from 1.35 to 1.80 by inflation molding using a thermoplastic material, forming a green tire by placing the obtained cylindrical film (10) on a forming drum so that the extrusion direction (12) becomes the tire width direction (14), and vulcanizing and molding the green tire.



PNEUMATIC TIRE

Thu, 27 Oct 2016 08:00:00 EDT

Provided is a pneumatic tire including a tire inner layer which achieves a balanced improvement in steering response, fuel economy, durability, and extrusion processability. Included is a pneumatic tire including a tire inner layer, the tire inner layer including a rubber composition that contains a rubber component, a carbon black, and an alkylphenol-sulfur chloride condensate, the carbon black having a BET specific surface area of 20-120 m2/g, the rubber composition containing, per 100 parts by mass of the rubber component, 40-100 parts by mass of the carbon black and 2.5-10 parts by mass of the alkylphenol-sulfur chloride condensate, the rubber composition having an amount of low reinforcing inorganic filler of not more than 40 parts by mass per 100 parts by mass of the rubber component and an amount of reactive phenolic resin of less than 2.0 parts by mass per 100 parts by mass of the rubber component.



IMPROVEMENTS RELATING TO TIRE RIMS

Thu, 20 Oct 2016 08:00:00 EDT

A tire rim of a motor vehicle includes a substantially cylindrical body for holding a tire, and a hub connected to the body through radial members, and has an outer face facing, in use, the outside of the vehicle, and an opposite inner face. At least one elongate flexible element associated with the rim can reach a resting configuration within the rim, and a working configuration, extended with respect to the resting configuration, of such a length as to allow the tire to be surrounded, in which each flexible element is wound around the tire to form a snow chain. The rim includes at least one retaining member at a zone of its inner face, to be engaged by a portion of a flexible element in its working configuration.



TYRE CAVITY NOISE ABSORBER

Thu, 20 Oct 2016 08:00:00 EDT

A tyre cavity noise absorber comprising a body 1 of sound absorbing material with an outer protective cover 3. The body of sound absorbing material is intended to be mounted to a wheel 2 of a wheel and tyre 6 assembly so that a surface of the body is exposed in a tyre cavity of the wheel and tyre assembly. The outer protective cover only partially covers said surface of the body of sound absorbing material such that the cover protects the body of sound absorbing material from a bead 7 of a tyre as a tyre is fitted to, or removed from, the wheel and the uncovered parts of the body of sound absorbing material are free to absorb sound.



TIRE HAVING AN ELECTRONIC DEVICE IN A LOWER SIDEWALL

Thu, 20 Oct 2016 08:00:00 EDT

A tire includes a pair of bead portions having a bead and a bead filler. A pair of reinforcement fillers has an inner surface with an upper portion contacting an outer surface of a respective bead filler, a middle portion contacting an outer surface of a respective turn up portion of a body ply, and a lower portion contacting an outer surface of a wire reinforcement. An electronic device is disposed radially below an apex of the bead filler of one of the bead portions and axially outside the bead filler. The electronic device is axially spaced from the bead filler such that the electronic device does not contact the bead filler.



TIRE CONSTRUCTION HAVING A CONTINUOUS BODY PLY TURN UP STRUCTURE

Thu, 20 Oct 2016 08:00:00 EDT

A pneumatic tire construction is provided using one or more folded body ply sheets constructed such that upon formation of the tire, the turn-ups in the sidewalls are looped turn-ups such that there are no free turn-up ends in the sidewalls.



PNEUMATIC TIRE

Thu, 20 Oct 2016 08:00:00 EDT

A pneumatic tire includes a tread portion being provided with at least one circumferentially and continuously extending main groove and at least one land portion adjacent to the main groove. The land portion includes a corner portion formed between a ground contact surface and a sidewall of the land portion on the side of the main groove. The land portion is provided with a lug groove extending from the main groove and terminating within the land portion. The corner portion includes a chamfered portion and a non-chamfered portion. The chamfered portion includes a first end in communication with the lug groove.



TIRE

Thu, 20 Oct 2016 08:00:00 EDT

A tire includes primary inclined grooves and auxiliary inclined grooves. Each primary inclined groove has a first gently inclined portion and a first steeply inclined portion. Each auxiliary inclined groove has a second gentry inclined portion and a second steeply inclined portion. Each primary inclined groove does not communicate with a circumferential groove on the tire equator line side and extends beyond a tread edge outward in a tire width direction. Each auxiliary inclined groove does not communicate with the circumferential groove on the tire equator line side, and does not reach the tread edge but terminates on the tire equator line side.



Irrigation Tire

Thu, 20 Oct 2016 08:00:00 EDT

A non directional pneumatic tire is provided for an agricultural irrigation system. The tire includes first and second side walls and a radially outer wall defining an internal inflation chamber. A non directional tread pattern is defined on the tire and includes a plurality of longitudinal protrusions positioned substantially parallel to a rotational axis of the tire. The longitudinal protrusions are arranged in first and second rows extending from the first and second side walls toward and across the equatorial plane of the tire. The longitudinal protrusions of the first and second rows circumferentially alternate with each other and there is a circumferential spacing between adjacent longitudinal protrusions at the equatorial plane so that no portion of one longitudinal protrusion circumferentially coincides with or overlaps another.



Tire Having a Particular Graphic Element

Thu, 20 Oct 2016 08:00:00 EDT

The disclosure relates to a tire made of rubbery material comprising a tread comprising a shoulder region, and a graphic element. The graphic element is recessed into the shoulder region, and comprises a texture that contrasts with this shoulder region . The graphic element may be selected from a group of graphic elements comprising at least letters, numbers and symbols.



PNEUMATIC VEHICLE TIRE

Thu, 20 Oct 2016 08:00:00 EDT

A pneumatic vehicle tire has a carcass, a belt and a profiled tread. The belt includes four belt plies wherein the third belt ply and the fourth belt ply are working plies. The reinforcement members of the working plies are arranged at an angle to the circumferential direction of 10° to 45° and the reinforcement members of the fourth belt ply at an angle of 10° to 45°. The reinforcement members of the third and fourth belt plies are arranged such that they cross one another. The reinforcement members of the first belt ply are arranged at an angle of 40° to 75° and the reinforcement members of the second belt ply are arranged at an angle of 0° to 5° to the circumferential direction. The reinforcement members of the third belt ply and the reinforcement members of the first belt ply have the same direction of inclination.



Tire Having A Reduced Nominal Pressure And An Increased Relative Deflection Under Nominal Load

Thu, 20 Oct 2016 08:00:00 EDT

Tire comprising a crown reinforcement formed of at least two working crown layers of reinforcing elements. The tire has a nominal pressure (Pn) of between 4 and 8 bar and a relative deflection (Fr) under nominal load that satisfies the relationship Fr≧0.14+(Pn−5)×0.013. The crown reinforcement ly comprises a layer of reinforcing elements parallel to one another within the layer and oriented circumferentially, the reinforcing elements of the carcass reinforcement having a diameter less than 1 mm and comprising threads of a diameter greater than 0.16 mm, the reinforcing elements of the carcass reinforcement being metal cords, advantageously non-wrapped cords, exhibiting in a permeability test a flow rate of less than 20 cm3/min, and the radial distance, measured in the equatorial plane, between the exterior surface of the tread and the interior surface of the tire being less than 32 mm.



Tire Comprising Carcass Reinforcing Cords Of Low Permeability And Variable Thicknesses Of Rubber Compound

Thu, 20 Oct 2016 08:00:00 EDT

Tire with a radial carcass reinforcement, made up of at least one layer of metal reinforcing elements, the tire comprising a crown reinforcement, itself radially capped by a tread, the tread being connected to two beads by two sidewalls. The metal reinforcing elements of at least one layer of the carcass reinforcement are non-wrapped cords which, in the test referred to as the permeability test, return a flow rate of less than 20 cm3/min, in a radial plane, at least over part of the meridian profile of the tire, the thickness of rubber compound between the interior surface of the cavity of the tire and the point of a metal reinforcing element of the carcass reinforcement closest to the interior surface of the cavity is less than or equal to 3.8 mm and the ratio between the thickness of rubber compound measured at the circumferential mid plane and the said thickness measured in another region of the tire is greater than 1.05.



Tire Comprising Carcass Reinforcement Cords Having Low Permeability And Variable Rubber Mixture Thicknesses

Thu, 20 Oct 2016 08:00:00 EDT

The invention relates to a tire with a radial carcass reinforcement, the said tire comprising a crown reinforcement itself capped radially by a tread. According to the invention, the metal reinforcing elements of the carcass reinforcement are wrapped cords which, in the test referred to as the permeability test, return a flow rate of less than 20 cm3/min and over the whole of the meridian profile of the tire, the thickness of rubber compound between the interior surface of the tire cavity and a point of a metal reinforcing element of the carcass reinforcement is between 1.0 mm and 3.0 mm.



Tire Comprising Carcass Reinforcement Cords Having Low Permeability And Variable Rubber Mixture Thicknesses

Thu, 20 Oct 2016 08:00:00 EDT

Tire with a radial carcass reinforcement, the tire comprising a crown reinforcement itself capped radially by a tread. The metal reinforcing elements of the carcass reinforcement are non-wrapped cords which, in the test referred to as the permeability test, return a flow rate of less than 20 cm3/min, over at least 50% of the meridian profile of the tire, the thickness of rubber compound between the interior surface of the tire cavity and a point of a metal reinforcing element of the carcass reinforcement being between 1.0 mm and 3.0 mm, the same thickness of rubber compound of two parts of the profile of the tire more or less centered on the orthogonal projection of the shoulder ends of the tire onto the interior surface of the tire being between 2.4 mm and 3.9 mm and the ratio of the thicknesses being greater than 1.10.



Combined Tyre

Thu, 20 Oct 2016 08:00:00 EDT

A combined tyre includes an outer tyre and a core. The outer tyre is an annular component and has an annular core groove therein. The core is an annular component. The core is mounted in the core groove of the outer tyre by means of interference fit. A gap is defined between the inner wall of the core groove of the outer tyre and the core. The present invention is composed of an outer tyre and a core. The core is disposed in the core groove of the outer tyre to prop up the inner cavity of the outer tyre so that the opening of the core groove of the outer tyre can be opened larger. During the production procedure of the present invention, the mold core to form the core groove of the outer tyre can be taken out easily to enhance the production efficiency.



Safety tire having compartments

Thu, 20 Oct 2016 08:00:00 EDT

A safety tire in combination with a rim includes an outer tube; a reinforcing layer secured to the outer tube; and a plurality of partitions for dividing a space formed by the reinforcing layer, the outer tube, and the rim into a plurality of compartments. Each compartment is implemented as an inner tube unit and includes a cavity in a first end, the cavity having a first magnetic element on a bottom, and a protuberance on a second end, the protuberance having a second magnetic element on an open end, the protuberance being releasably fastened in the cavity of an adjacent compartment by attaching the second magnetic element to the first magnetic element of the adjacent compartment. Each partition includes a central tunnel put on the protuberance, and corrugations adjacent to the central tunnel.



Multiple Chamber Pneumatic Tire

Thu, 20 Oct 2016 08:00:00 EDT

A multiple chamber pneumatic tire having an upper section and a lower section. A diaphragm separates the upper section from the lower section. The lower section has at least two chambers. The chambers each have a chamber valve, a nail guard layer, a plurality of fibers having an end connected to an inner wall surface of a chamber, and an interconnected barrier connected to at least two portions of a chamber wall surface. The upper section of the tire has at least one linkage located within at least one tube with a primary end connected to a chamber valve of a chamber and a secondary end connected to a tire rim or to a main valve. A tire pressure monitoring system can be in communication with a chamber valve. The tire can have a ring with at least one retractable stud.



TIRE WITH SPLICED MULTILAYERED FILM INNERLINER

Thu, 20 Oct 2016 08:00:00 EDT

The present invention relates to a pneumatic tire having a multilayered film innerliner with rubber reinforced spliced overlapping ends.



TYRE COMPRISING A GRAPHITE OR GRAPHENE COVER FILM DEPOSITED ON AN INNER-LAYER SURFACE

Thu, 20 Oct 2016 08:00:00 EDT

A tyre having a rubber inner layer facing the inner cavity of the carcass; and a cover film made entirely of graphite or graphene and deposited on a surface of the inner layer.



TIRE, AND TIRE MANUFACTURING METHOD

Thu, 20 Oct 2016 08:00:00 EDT

Provided is a tire having at least a circular tire frame formed of a thermoplastic resin material, the tire including a reinforcing cord member that forms a reinforcing cord layer on the outer circumference of the tire frame, and the thermoplastic resin material including at least a polyamide-based thermoplastic elastomer.



Pneumatic Tire

Thu, 13 Oct 2016 08:00:00 EDT

A pneumatic tire of the present technology is a pneumatic tire provided with a tread portion, side wall portions and bead portions, a plurality of circumferential grooves extending in the tire circumferential direction being provided in the tread portion, and a belt-shaped sound-absorbing member being bonded via an adhesive layer to the tire inner surface in a region corresponding to the tread portion along the tire circumferential direction, wherein the width W of the sound-absorbing member is from 70% to 95% of the tire ground contact width TCW, and the total width of the circumferential grooves included in the region in the tire width direction in which the sound-absorbing member is disposed is from 25% to 40% of the width W of the sound-absorbing member.



Pneumatic Tire

Thu, 13 Oct 2016 08:00:00 EDT

Provided is a pneumatic tire comprising a tread section, a side wall section, and a bead section. A tire constituent member is provided in at least the tread section, extending along the tire circumferential direction and spliced at any positions in the tire circumferential direction. A belt-shaped sound-absorbing member is adhered to a region corresponding to the tread section in the tire inner surface, along the tire circumferential direction and via an adhesive layer. The sound-absorbing member is arranged intermittently along the tire circumferential direction. Sections where the sound-absorbing member is missing are arranged at positions corresponding to the splice portions of the tire constituent member and the sound-absorbing member is arranged so as to not overlap the splice portions.



IMPROVED NOISE-REDUCING DEVICE FOR TIRE

Thu, 13 Oct 2016 08:00:00 EDT

Disclosed herein is a tread for a tire, in which the tread provides an improvement to the resonance noise-reducing devices and seeks at the same time to obtain easy molding and demolding of the flexible blades that form the groove closure device and complete closure of the cross section of each groove in which these flexible blades are formed.



TYRE WITH AN IMPROVED JOINT BETWEEN THE SIDEWALLS AND CORRESPONDING ABRASION GUM STRIPS

Thu, 13 Oct 2016 08:00:00 EDT

A tyre (1) having: an at least partially turned-up body ply (3); two beads (4) arranged on opposite sides of the body ply (3) and surrounded by the body ply (3); a tread (7) supported by the body ply (3); two side walls (11) arranged outside the body ply (3) between the tread (7) and the beads (4); and two abrasion gum strips (12) located externally below the sidewalls (11) and at the beads (4); wherein a joining surface (13) between each side wall (11) and the corresponding abrasion gum strip (12) has in cross-section a “U”-like shape (FIG. 3).



TIRE WITH HIGH STRENGTH CORRUGATED SIDEWALLS

Thu, 13 Oct 2016 08:00:00 EDT

A tire having a pair of high strength sidewalls lying opposite one another, wherein each sidewall has a plurality of plies that are shaped during manufacture to have a series of pleats or corrugations formed therein and stretching from the tire beads radially outward along the sidewalls. Each of the series of sidewall corrugations includes a pattern of alternating inwardly extending depressions and outwardly extending projections that extend continuously around the tire. The corrugations provide the sidewalls with an integral structural reinforcement, whereby the tire is advantageously capable of providing run flat support and avoiding damage to the rim on which the tire is mounted. According to a preferred embodiment, the tire herein disclosed is ideally suited for use on a motorcycle rim.



PNEUMATIC TIRE

Thu, 13 Oct 2016 08:00:00 EDT

A pneumatic tire comprises a tread portion provided with tread grooves defining a asymmetrical tread pattern. The tread grooves include an outboard shoulder main groove and an outboard crown main groove extending zigzag continuously in the tire circumferential direction. The outboard shoulder main groove is composed of alternate long groove segments and short groove segments which are inclined with respect to the tire circumferential direction to the outboard tread edge. The inclination angle θb of the short groove segments is larger than The inclination angle θa of the long groove segments. The groove widths of the long groove segments are gradually increased toward the outboard tread edge.



HEAVY DUTY TIRE

Thu, 13 Oct 2016 08:00:00 EDT

Provided is a heavy duty tire that has high levels of both tire rolling resistance performance and wet performance. The heavy duty tire has provided in a tread portion: a pair of center main grooves extending in a zigzag shape in the tire circumferential direction; a pair of shoulder main grooves extending linearly in the tire circumferential direction; and a center land portion, a middle land portion, and a shoulder land portion that are divided. Middle inclined grooves, connecting connect an outer top portion in the tire axial direction in the center main grooves and the shoulder main grooves, are formed in the middle land portion. Shoulder inclined grooves, connecting the shoulder main grooves and a tread grounding end Te, are formed in the shoulder land portion. First center inclined sipes that connect inner top portions in the tire axial direction in the center main grooves to each other and second center inclined sipes that connect outer top portions in the tire axial direction in the center main grooves are formed in the center land portion.



TREAD COMPRISING A BLOCK HAVING A PLURALITY OF SIPES

Thu, 13 Oct 2016 08:00:00 EDT

The aspects disclosed herein relate to a tread for a tire including at least one block of rubbery material of width W and length L with L>>W. This block extends in a circumferential direction (X) when the tread is mounted on the tire, the block including a contact surface intended to come into contact with the ground and a first lateral wall and a second lateral wall delimiting this contact surface. The block further includes a plurality of sipes opening onto the contact surface of the block, with each sipe extending over the contact surface in an oblique direction opening onto the first lateral wall and onto the second lateral wall, the sipes of the block being oriented in the same direction. The sipes are distributed over the contact surface of the block in such a way that when one sipe reaches the second lateral wall another sipe starts out from the first lateral wall at the same circumferential level (N) on the block, and each sipe includes at least two parts.



EVOLVING TREAD FOR A TIRE

Thu, 13 Oct 2016 08:00:00 EDT

A tread for a heavy vehicle tire which, when new, has a tread surface, this tread including over at least a first axial part (M) of the tread at least one wavy groove with waviness in the thickness of the tread and continuous in a first direction and a plurality of wavy grooves with waviness in the thickness of the tread and continuous in a second direction, the wavy grooves in the second direction being connected to at least one wavy groove in the first direction, and over at least a second axial part (B) of the tread at least one wavy groove with waviness in the thickness of the tread and continuous in a third direction and a plurality of wavy grooves with waviness in the thickness of the tread and continuous in a fourth direction, the wavy grooves of this second axial tread part (B) oriented in the fourth direction being connected to at least one wavy groove in the third direction, this tread being such that, when new, the open parts opening onto the tread surface of the first axial part (M) are connected to one another to form a continuous surface network and in that the open parts opening onto the tread surface of the second axial part (B) are disjointed from one another, and beyond a part-wear condition, the open parts opening onto a new tread surface of the second axial part (B) are connected to one another to form a continuous surface network and in that the open parts opening onto the new tread surface of the first axial part (M) are disjointed from one another.



PNEUMATIC TIRE

Thu, 13 Oct 2016 08:00:00 EDT

Performance on snowy roads is improved. Provided is a pneumatic tire, of which the mounting orientation on a vehicle is indicated. An outer middle land part is formed between a first major groove and a second major groove. The first major groove has first portions and second portions alternately formed in the tire circumferential direction, the second portions being wider than the first portions. The outer middle land part is provided with a plurality of middle inclined grooves not directly interconnected with either the first major groove or the second major groove, a plurality of outer middle lug grooves connecting the second portions of the first major groove and the middle inclined grooves, and inner middle lug grooves connecting the middle inclined grooves and the second major groove. The outer middle lug grooves are provided to different positions in the tire circumferential direction than the inner middle lug grooves.



TIRE

Thu, 13 Oct 2016 08:00:00 EDT

Provided is a tire in which the silent performance is excellent and the wear performance is also excellent. An outer middle land portion 2OUT is defined by the middle circumferential main groove 1CE and the outer circumferential main groove 1OUT, an inner middle land portion 2IN is defined by the middle circumferential main groove 1CE and the inner circumferential main groove 1IN, and the outer middle land portion 2OUT is formed bridging across the tire equatorial plane, the outer middle land portion comprises an outer resonator 5 composed of a first sub groove 3 both ends of which terminate within the land portion, a first branch groove 4a which extends from one end 3A of the first sub groove to the outer circumferential main groove and whose groove width is smaller than that of the first sub groove, and a second branch groove 4b which extends from the other end 3B of the first sub groove to the middle circumferential main groove and whose groove width is smaller than that of the first sub groove, the inner middle land portion comprises a second sub groove 6 whose one end terminates within the land portion, wherein the other end of the second sub groove is directly communicated with the inner circumferential main groove or is communicated with the inner circumferential main groove via a third branch groove 4C whose groove width is smaller than that of the second sub groove to form an inner resonator 7, and the length of the outer resonator in the tire circumferential direction is larger than the length of the inner resonator in the tire circumferential direction.



PNEUMATIC TIRE

Thu, 13 Oct 2016 08:00:00 EDT

A pneumatic tire includes a tread portion being provided with a plurality of inclined main grooves extending beyond a tire equator from one of a first tread edge and a second tread edge and terminating without reaching the other one of the first tread edge and the second tread edge. Each of the inclined main grooves includes an outer portion and an inner portion. The outer portion extends from the first tread edge or the second tread edge without reaching the tire equator while increasing an angle relative to an axial direction of the tire. The inner portion is connected to the outer portion and traverses the tire equator at a smaller angle relative to the axial direction of the tire than the angle of the outer portion.



TIRE TREAD HAVING A PLURALITY OF WEAR LAYERS

Thu, 13 Oct 2016 08:00:00 EDT

Particular embodiments of the present invention include a multi-stage tire tread having two or more wear layers comprising an outer wear layer and one or more inner wear layers arranged within the thickness of the tread below the outer wear layer and one or more outer grooves are arranged within the outer wear layer. The tread further includes a volumetric void ratio equal to approximately 0.25 to 0.40 in the unworn condition and approximately 0.25 to 0.40 in a worn condition where the outer, ground-engaging side is arranged along one of the inner wear layers in the worn condition, the tread further having a contact surface ratio equal to approximately 0.66-0.72 in the unworn condition and approximately 0.56-0.66 in the worn condition.



PNEUMATIC VEHICLE TIRE

Thu, 13 Oct 2016 08:00:00 EDT

The invention is directed to a pneumatic vehicle tire having a carcass and a belt built up on the radial outside of the carcass. The tire includes a profiled tread which is built up on the belt on the radial outside of the belt. The belt is formed from at least four belt plies which are arranged one on top of the other from the radial inside to the radial outside. The first belt ply and the second belt ply are crossing working plies. The reinforcing elements of the first and second belt plies are arranged at an angle of 10° to 45° to the circumferential direction. The reinforcing elements of the fourth belt ply are arranged at an angle of 40° to 75° to the circumferential direction and the reinforcing elements of the third belt ply are arranged at an angle of 0° to 5° to the circumferential direction.



PNEUMATIC TIRE

Thu, 13 Oct 2016 08:00:00 EDT

[Object] A pneumatic tire that allows reduction of the occurrence of a TGC and, at the same time, allows reduction of rolling resistance, is provided. [Solution] The tire 12 includes a band 26 disposed radially inward of a tread 14, and a belt 24 disposed radially inward of the band 26. The band 26 includes a cord that is helically wound and extends substantially in a circumferential direction. The belt 24 includes an inner layer 24a, and an outer layer 24b that is layered over the inner layer 24a and disposed radially outward of the inner layer 24a. The inner layer 24a and the outer layer 24b each include multiple cords aligned with each other. The cords in the inner layer 24a and the cords in the outer layer 24b are inclined relative to an equator plane. A direction in which the cords in the inner layer 24a are inclined relative to the equator plane is opposite to a direction in which the cords in the outer layer 24b are inclined relative to the equator plane. Absolute values of inclination angles of the cords in the inner layer 24a and the cords in the outer layer 24b relative to the equator plane are greater than or equal to 35°, and not greater than 55°.



CAP PLY REINFORCEMENT STRIP IN PNEUMATIC TIRE

Thu, 13 Oct 2016 08:00:00 EDT

The cap ply reinforcement strip is a ready-to-use plain woven fabric and is composed of hybrid cord warps (3) and texturized weft yarns (2). The cap ply reinforcement strip for pneumatic tires (1) eliminates calendering and strip preparation steps by eliminating the need for rubber coating and decreases the rolling resistance of the tire and the fuel consumption.