Abstract: Machines that plant crop seed generally compact the seed rows with their tires. The solution to this problem is to cut or mold notches into the tire lugs in the area that would pass directly above the planted seeds and adjacent to the planted seeds. Tires could also be molded with the notches in place during the tire manufacturing process. If lateral beaming strength is needed in the tire, ribs can be formed on the inside of the tire either intermittent or continuous across the width of the tire. Notching also could be done selectively on tires after molding.

Abstract: A tire with improved handling having a stiffening structure with a stiffening element extending continuously in the toroidal interior cavity from a crown interface connected to a radially inner face of the crown to a bead interface connected to an axially inner face of the bead. The stiffening structure is distributed circumferentially over the circumference of the tire, the axially outermost stiffening element interface is positioned, with respect to the equatorial plane (XZ), at an axial distance A at most equal to 0.45 times the axial width S, and the radially outermost stiffening element bead interface is positioned, with respect to a radially innermost point (I) of the axially inner face of the bead at a radial distance B at most equal to 0.5 times the radial height H.

Abstract: Provided are a pneumatic tire and a method for manufacturing the pneumatic tire. A partial tie rubber layer is selectively disposed in each region between a carcass layer and an innerliner layer and on both sides in a tire lateral direction of a tread portion excluding a center region of the tread portion. End portions on both sides of the partial tie rubber layers in the tire lateral direction form inclined surfaces acutely angled with respect to a surface of the partial tie rubber layer on the carcass layer side. The inclined surfaces have an inclination angle from 20° to 60° with respect to the surface of the partial tie rubber layer on the carcass layer side.

Abstract: A method for controlling the discharge of fluids during a process for vulcanization and moulding of a green tire includes the steps of: building at least one portion of a radially internal surface of a green tire by winding of a continuous elongated element of elastomeric material into a plurality of coils confining circumferential grooves along the rolling direction of the tire; disposing the circumferential grooves into fluid communication with discharge channels present in the radially external surface of a pressing bladder disposed in a radially internal cavity bounded by the green tire.

Abstract: A resin-metal composite member for a tire, the member including: a metal member; an adhesive layer; and a covering resin layer in this order, wherein: the adhesive layer includes a continuous phase containing a polyester-based thermoplastic elastomer having a polar functional group, and a discontinuous phase containing a styrene-based elastomer, and a ratio of the continuous phase with respect to an entirety of the adhesive layer is from 60% by mass to 93% by mass.

Abstract: The disclosure provides a method of manufacturing a motorcycle tire for uneven terrain travel in which both a rigid feeling at the time of driving and a shock absorbing ability are able to be achieved. Provided is a method of manufacturing a motorcycle tire for uneven terrain travel including a process of molding a green tire including a tread portion, a pair of sidewall portions and a pair of bead portions, and a vulcanization process of vulcanizing the green tire using a mold. In the mold, a clip width, which is a distance in a tire axial direction between a pair of bead molding surfaces which form outer surfaces of the pair of bead portions, is 100% to 110% of a rim width of a normal rim to which a completed motorcycle tire is attached.

Abstract: The disclosure provides a method of manufacturing a motorcycle tire for uneven terrain travel in which both a rigid feeling at the time of driving and a shock absorbing ability are able to be achieved. Provided is a method of manufacturing a motorcycle tire for uneven terrain travel including a process of molding a green tire including a tread portion, a pair of sidewall portions and a pair of bead portions, and a vulcanization process of vulcanizing the green tire using a mold. In the mold, a clip width, which is a distance in a tire axial direction between a pair of bead molding surfaces which form outer surfaces of the pair of bead portions, is 100% to 110% of a rim width of a normal rim to which a completed motorcycle tire is attached.

Abstract: A non-pneumatic tire for a vehicle or other machine. The non-pneumatic tire may include an annular beam. The annular beam may include a plurality of layers of different elastomeric materials. The annular beam may be free of a substantially inextensible reinforcing layer running in a circumferential direction of the non-pneumatic tire. The annular beam may include a plurality of openings distributed in the circumferential direction of the non-pneumatic tire. Such an annular beam may be part of other annular devices.

Abstract: A tire including a circular tire frame formed of a resin material, and a metal reinforcing cord member wound on the outer circumference of the tire frame, wherein at least a portion of the metal reinforcing cord member is covered by a covering mixture including at least an olefin-based thermoplastic resin and a thermoplastic resin other than the olefin-based thermoplastic resin.

Abstract: A tire containing at least a circular tire frame body that is formed from a resin material and has a layered structure, wherein the tire frame body includes at least one gas retaining layer.

Abstract: A tire including a circular tire frame formed of a resin material that includes a thermoplastic resin and fibers.

Abstract: The disclosed technology generally relates to apparatuses for reducing or cancelling noise generated by a tire in motion, and more particularly to a noise-reducing apparatus including a sound-absorbing foam and a fixing structure for attaching and fixing the sound-absorbing foam to a tire. In one aspect, the noise-reducing apparatus for a tire includes a sound-absorbing foam configured to reduce noise generated by the tire by absorbing sound generated by the tire in motion when attached to an inner liner of a tire. The noise-reducing apparatus additionally includes a plurality of fixing bands configured to fix the sound-absorbing foam to an inner side of the tire. Each of the fixing bands has an attaching portion configured to be fixed to the inner side of the tire and has a pressing portion configured to bring and keep the sound-absorbing foam in contact with the inner liner. The pressing portion is configured to apply an elastic force on the sound-absorbing foam by extending and contracting.

Abstract: Methods of making a fiber-reinforced thermoplastic polyurethane composite are described. The methods may include applying a sizing composition to a plurality of fibers to make sized fibers, where the sizing composition may include at least one curative for a thermoplastic polyurethane prepolymer. The sized fibers may be contacted with a thermoplastic polyurethane prepolymer composition to form a resin-fiber amalgam, where the thermoplastic polyurethane prepolymer composition includes 50 wt. % or less of a total amount of the curative that is also present on the sized fibers. The resin-fiber amalgam may then be cured to form the fiber-reinforced thermoplastic polyurethane composite.

Abstract: A tire containing at least a circular tire frame body that is formed from a resin material and has a layered structure, wherein the tire frame body includes at least one gas retaining layer.

Abstract: A pneumatic tire is provided with a carcass layer and a sidewall rubber disposed on an outer side in a tire width direction of the carcass layer. Additionally, the pneumatic tire is provided with a resin coating applied on a predetermined region of a sidewall portion. Additionally, a minimum value of a wall thickness t of a rubber of the sidewall portion in the region applied with the resin coating is in a range of 0.05 mm?t?4.0 mm. Additionally, a thickness of the resin coating is in a range of 20 ?m or more and 300 ?m or less.

Abstract: To prevent rubber from becoming membrane-like mold flash between mating faces and being adhered. It is a rigid core for forming a tire which comprises an annular core main body provided in an outer surface thereof with a tire molding surface for forming a raw tire. The core main body is composed of a plurality of core segments which are divided in a circumferential direction, and each of the core segments has both circumferential end surfaces as mating faces, and the mating faces adjacent to each other in the circumferential direction are butted to each other so as to form the core main body. Each of the mating faces is provided with a border recess extending along an outer peripheral edge of the mating face and formed by cutting away a corner between the tire molding surface and the mating face.

Abstract: A tire includes a ring shaped tire case formed from a resin material, a reinforcement cord having a higher rigidity that that of the resin material, wound in a spiral shape on the outer peripheral section of the tire case and having at least a portion of the reinforcement cord embedded in and making close contact with the outer peripheral section of the tire case when viewed in a cross-section along the axial direction of the tire case and a tread provided on the radial direction outside of a reinforcement cord layer formed by the reinforcement cord.

Abstract: A pneumatic tire includes an internal sealing layer, which partially delimits an internal volume of the pneumatic tire, and a self-sealing layer formed of a self-sealing product. The self-sealing layer is positioned radially on an inside region with respect to the internal sealing layer, and has a creep resistance indicator that decreases radially outwards, i.e., towards outside of the pneumatic tire.

Abstract: Tire including a continuous pressure membrane. The tire includes a carcass, a rubber layer surrounding the carcass, and a belt. The carcass includes at least one continuous pressure membrane defining a generally U-shaped cross section. The pressure membrane includes a crown portion, a first sidewall portion, and a second sidewall portion connected with the first sidewall portion by the crown portion. The belt may be composed of at least one additional continuous pressure membrane adjacent the crown portion.

Abstract: This invention pertains to a new method for manufacturing tires, an apparatus used with the new method and the article manufactured by the new method. The article is called the reinforced liquid elastomer tire (RLET). The method of manufacture includes placement of reinforcing materials inside a tire molding cavity and subsequently surrounding the reinforcement with a liquid elastomer which encapsulates the reinforcement and takes the outside shape of the tire mold. The liquid elastomer is solidified and the completed RLET is removed from the mold and ready for service.

Abstract: A vacuum forming apparatus and process for its use in forming a transport tire from an elastomeric material that includes a mold having a cavity or annular area wherein a transport tire core of plies, belt and beads is laid-up on a mandrel located within the mold. The mold receives a cover fitted in sealing engagement over the mold top and a cylindrical canister is fitted through the center of which cover and the mold center that is open at a top end to receive a pour of an elastomeric material mixture and includes a needle valve in its lower end that exhausts into one end of the mold annular area.

Abstract: A system for manufacturing an elastomeric tire utilizing a separate formation of a package having a tire core shape and containing tire belts, plies and beads. The package is formed by a laying up of layers of pre-cure elastomer intradigitated with sections of porous fabric, where the fabric fibers are placed at desired crossing angles to one another, and the pre-cure elastomer layers are positioned therebetween as a sandwich, with the sandwich then cold rolled into the tire core shape. Inelastic hoop shaped beads are fitted to and encapsulated in the tire core side walls ends and, as required, an inelastic belt is fitted around the tire core tread area that is secured thereto as by cold rolling a layer of pre-cure elastomer thereover, completing the tire core package. The tire core package is fitted into a mold, preferably a spin casting mold, and is supported therein equidistant from the mold cavity walls to receive an elastomer sprayed therein as the mold is spun.

Abstract: An elastomeric tire with arch shaped shoulders for mounting onto a rim that is manufactured by spin casting or molding methods that includes an annular cavity that is centered under the tire tread having equal thicknesses of side walls and an area under the tread whose slope outwardly into shoulder that the side walls upper ends intersect that have greater thickness and which side walls lower ends include beads that are each spaced a selected distance from the surfaces of the side wall ends that slope upwardly from inner to outer surfaces and with the tire preferably including plies that extend across the tire having ends that wrap around the beads and belts fitted around the tire circumference, above the plies, and including porous spacers fitted between the layers of plies and belts to pass a flow of the elastomeric material therethrough during tire formation.

Abstract: An elastomeric tire for mounting onto a rim that is manufactured by casting or molding methods to include an interior arch shaped cavity that is centered under the tire tread to have at least one hundred forty (140) degrees and not more than one hundred seventy (170) degrees of arc, and with the cavity arch duplicated around the tire exterior, below the tire tread. A uniform tire wall thickness is provided that is selected for a particular anticipated load as the tire will carry, with the tire side wall ends maintained at the rim aligned ends, supporting the load carried by the tire in compression, and with the tire, at atmospheric pressure, providing ride and wear characteristics that are comparable to a pressurized pneumatic tire carrying a like load, and which tire of the invention interior arch shaped cavity can be pressurized to add to its inherent load supporting character to safely support even greater loads.

Abstract: A vulcanizable rubber composition is described comprising a cross-linkable unsaturated chain polymeric base, wherein is incorporated at least one organic compound, solid at room temperature, selected from the group comprising: amorphous or semicrystalline polymers, oligomers, low-molecular weight organic substances and mixtures thereof, which compound is substantially insoluble in the polymeric base and shows a first or second order transition temperature of from 80 to 160° C. Such rubber composition allows the manufacture of treads with either a low rolling resistance at the temperature of normal use of the tire (40°-70° C.), or a high grip when the tread is subjected to thermal stresses exceeding such temperatures.

Abstract: A vulcanizable rubber composition is described comprising a cross-linkable unsaturated chain polymeric base, wherein is incorporated at least one organic compound, solid at room temperature, selected from the group comprising: amorphous or semicrystalline polymers, oligomers, low-molecular weight organic substances and mixtures thereof, which compound is substantially insoluble in the polymeric base and shows a first or second order transition temperature of from 80 to 160° C. Such rubber composition allows the manufacture of treads with either a low rolling resistance at the temperature of normal use of the tire (40°-70° C.), or a high grip when the tread is subjected to thermal stresses exceeding such temperatures.

Abstract: A vulcanizable rubber composition is described comprising a cross-linkable unsaturated chain polymeric base, wherein is incorporated at least one organic compound, solid at room temperature, selected from the group comprising: amorphous or semicrystalline polymers, oligomers, low-molecular weight organic substances and mixtures thereof, which compound is substantially insoluble in the polymeric base and shows a first or second order transition temperature of from 80 to 160° C. Such rubber composition allows the manufacture of treads with either a low rolling resistance at the temperature of normal use of the tire (40°-70° C.), or a high grip when the tread is subjected to thermal stresses exceeding such temperatures.

Abstract: A urethane wheel including a hard urethane hub formed with a rim facing radially outward, and including stand-off ribs spaced equidistant thereabout. The stand-off ribs having centering notches opening radially outward. A thin wall polyurethane annular bladder with an interior annular stand-off skirt facing radially inward, contacting the centering notches of the stand-off ribs, and cooperating to position the bladder both radially and axially about the rim. The tire body is formed of soft polyurethane which surrounds the rim, encapsulates the bladder creating and integral cavity, and forms a contoured surface. A method of manufacturing the wheel which includes selecting a pressurized annular bladder, locating the bladder both axially and radially about the rim, forming a concentric bridge space having axial communication channels between the rim and bladder, and then pouring liquid urethane in a mold to form the tire.

Abstract: A skate wheel including a hard urethane hub formed with a drop center between radially projecting guide flanges, and including stand-off ribs disposed in equidistant spaced relation thereabout. Pairs of centering fins are spaced axially along a number of stand-off ribs thereby forming a central groove along the drop center. An annular bladder with an interior annular stand-off skirt is nested within the centering fins and concentric with the drop center. The wheel body is formed of a soft polyurethane and surrounds the drop center and encapsulates the annular tube, thereby forming a contoured surface. A method of manufacturing the wheel that includes selecting a welded seam annular tube, pre-pressurize it and then further pressurize it through the exothermic reaction by pouring liquid urethane in a mold to form the tire.

Abstract: A pre-pressurized in-line skate wheel including a hard polyurethane hub having a drop center formed between radially projecting guide flanges formed with axially projecting windows as spaced equidistant thereabout in an annular array. A bladder device includes a plurality of pressurized hollow cross rods nested at their opposite ends in such windows and surmounting on their radially outward sides a pressurized annular tube arranged concentric with the drop center. A soft polyurethane wheel body is formed in such drop center and projects radially outwardly to encapsulate the annular tube and form an elliptical annular tread surface. The method of manufacturing the tire includes blow molding the cross rods and the annular tube and pressurizing them to the desired individual pressures so that the resultant tire will exhibit the combined benefits of polyurethane cushioning and shock absorption associated with compressible gases.

Abstract: A pneumatic in-line skating wheel having a tire body and central hub chemically bonded during a polyurethane casting process and further including an annularly encapsulated air bladder centrally spaced within the tire body to provide shock absorption. The bladder in one embodiment is in communication with a valve for inflation and deflation thereof such that the overall tire resiliency may be adjusted, enabling adjustable performance characteristics of the wheel. One embodiment of the valve incorporates a resilient core within a rigid barrel and stretchable to allow an inflation needle to stretch the core and drive a poppet off a seat at the interior end of the barrel.

Abstract: A pneumatic in-line skating wheel having a tire body and central hub chemically bonded during a polyurethane casting process and further including an annularly encapsulated air bladder centrally spaced within the tire body to provide shock absorption and inflation/deflation means such that the overall tire resiliency may be adjusted, enabling adjustable performance characteristics of the wheel.

Abstract: An anionic polymerization initiator includes a carbon-lithio salt of the adduct of a cyclic secondary amine with a conjugated diene. A method of preparing an anionic polymerization initiator includes reacting an excess of a cyclic secondary amine with a conjugated diene to form an adduct; and, reacting the adduct with an organolithium compound. A method of preparing a polymer includes forming a solution of one or more anionically polymerizable monomers in a hydrocarbon solvent; and, polymerizing the monomer with an anionic polymerization initiator comprising a carbon-lithio salt of the adduct of a cyclic secondary amine with a conjugated diene. A functionalized polymer includes the termination product of a living polymer having the general formula AYLi, wherein A is a functional group derived from an anionic polymerization initiator; and, Y is a divalent polymer radical; wherein the anionic polymerization initiator is a carbon-lithio salt of the adduct of a cyclic secondary amine with a conjugated diene.

Abstract: A microcellular polyurethane composite material comprising desiccated rubber particles embedded in a microcellular matrix of polyurethane. Rubber particles derived from tires and other sources are combined with a desiccant to remove moisture present in the particles. The resulting desiccated rubber particles and desiccant are mixed with a polyol, polyisocyanate, catalyst, and blowing agent to form a precursor blend which is cured to produce a microcellular polyurethane composite. The resulting microcellular rubber-polyurethane composite may be used for tires, shoe and boot soles, surface coatings, and other applications requiring a material which is structurally strong and wear resistant. The desiccated rubber particles may be premixed with the polyol and/or added simultaneously with the polyol, polyisocyanate, catalyst, and blowing agent during composite molding.

Abstract: A polyurethane elastomer exhibiting superior flex fatigue properties is obtained by reacting a mixture of isocyanate-terminated polyether prepolymers with at least one alkylthioaromatic amine curing agent. Optionally, the elastomer can be postcured for further improvement of its properties. The polyurethane elastomer can be utilized for the fabrication of a non-pneumatic tire.

Abstract: There is disclosed a method for making a pneumatic tire comprising providing a pair of circular half body members including the pair of circular half body members with each other by welding their tread base portions to form a tire main body, applying a tread main body including an uncured breaker and an uncured tread to the outer periphery of the tire main body to form a row cover tire; and to vulcanize the row cover tire in a mold to weld the tread main body and the tire main body by the heat at the vulcanization and to form tread grooves.

Abstract: A tire (10) is provided with a cast body (12). The cast body has an annular circumferentially extending isotropic portion (14) having a pair of anisotropic side portions (16,18) extending therefrom. The side portions are rendered anisotropic by geometric means. A reinforcing means (30) is attached to the inner or interior surface of the side portions and extends from the isotropic portion to a point radially inwardly of the maximum section width (SW) of the tire. The reinforcing means may include a number of alternating ridges and grooves (46,48). The body may be cast from an elastomeric material such as polyurethane. A tread (26) and belt package (28) is disposed over the body and may be either elastomeric or rubber.

Abstract: A stiffening ply intended for use in an article, particularly a pneumatic tire, is characterized by the fact that the ply is formed at least in part of a fabric having the following properties:(a) the fabric has a three-dimensional body and stiffening threads;(b) substantially all the voids in the fabric are capable of being filled by a material which forms part of the structure of the article;(c) the fabric has two main faces connected by two side faces;(d) the cross section of the fabric has a width which varies from one main face to the other.

Abstract: Air springs or other fluid pressure devices have flexible elastomeric sleeves terminating in a pair of end beads which are clamped or crimped onto a pair of spaced end members. Each of the beads is reinforced by a solid annular ring of nonreinforced thermoplastic material which is molded within the sleeve beads. The rings preferably are formed of nylon and are sufficiently flexible to move with the end members and sleeve and return to their original shape after such movement. A similar nonreinforced plastic ring may be molded in a central portion of the elastomer sleeve to provide the girdle hoop of the sleeve.

Abstract: A pneumatic tire produced of elastomers, especially cast or injection molded polyurethanes has an inner body in which a reinforcement is embedded and anchored by means of holding ropes. The inner body may be provided as a closed tubular body and is encased by an outer body which accommodates a belt and is outwardly provided with a tread. At its side walls, the outer body is provided with respective bead cores in which area, the inner body of the tire is connected to the outer body.

Abstract: A reinforcement ply intended for use in a tire is characterized by the fact that the reinforcement ply is formed, at least in part, of a fabric having the following properties:(a) the fabric comprises a three-dimensional body and reinforcement threads arranged in the body and held by the body;(b) practically all the voids in the fabric are capable of being impregnated with at least one material which forms part of the structure of the tire.The invention also relates to these plies which are impregnated with at least one material which forms part of the structure of the tires. The invention further relates to tires having at least one reinforcement ply, as well as to the methods for obtaining such tires.

Abstract: A reinforcement ply intended for use in a tire is characterized by the fact that the reinforcement ply is formed, at least in part, of a fabric having the following properties:(a) the fabric comprises a three-dimensional body and reinforcement threads arranged in the body and held by the body;(b) practically all the voids in the fabric are capable of being impregnated with at least one material which forms part of the structure of the tire.The invention also relates to these plies which are impregnated with at least one material which forms part of the structure of the tires. The invention further relates to tires having at least one reinforcement ply, as well as to the methods for obtaining such tires.