"skid", "ridge" tyres
FIELD: machine building.
SUBSTANCE: main structural element is rubber-cord with V-shaped grooves of outer surface in contact with road. On outer surface of tire thread there is steel skids arranged at an angle to vertical axis of tire.
EFFECT: higher adhesion with icy road due to friction forces arising in the area of steel skids contact with road surface.
1 cl, 6 dwg
SUBSTANCE: invention comprises wavy closed shell arranged between the wheel and road that feature wheel increased shape to contact with said wheel via vehicle weight. Note here that are of contact with road and specific pressure on road differentiation are increased.
EFFECT: improved cross country capacity.
3 cl, 2 dwg
FIELD: automobile production.
SUBSTANCE: invention relates to motor vehicles. Tyre includes anti-slip bands which are made from corrugated elastic material and equipped with anti-skid spikes. The bands are installed in special sunk bandage belts at tyre tread. Note that belt bottom is performed in a form of projections and dents corresponding to band corrugations.
EFFECT: increase of tyre contact with slippery road and their multifunction.
FIELD: automotive industry; tire industry.
SUBSTANCE: according to invention, tread band of tire contains at least one first sector passing along radius and consisting of first elastomer material; great number of second sectors passing along radius, arranged at opposite sides relative to axis of at least one first sector and consisting of second elastomer material; at least one longitudinal groove formed in at least one first sector and passing mainly over entire periphery of tread band. First elastomer material has modulus of elasticity at compression at 23°C of second elastomer material. Modulus of elasticity at compression at 23°C of first elastomer material is approximately from 20 to approximately 80 MPa.
EFFECT: improved draining capacity and road-keeping stability of tire on wet surface.
34 cl, 8 dwg
FIELD: tire industry.
SUBSTANCE: proposed tire has tread band arranged along radius outside relative to breaker structure and consisting mainly of first elastomer material enclosing at least one part consisting mainly of second elastomer material. Tread band has at least one groove forced in at least one part consisting mainly of second elastomer material. Ratio between modulus of elasticity E' at compression at 100°C of second elastomer material and modulus of elasticity E' at compression at 100°C of first elastomer material is equal to at least approximately 1.3-, and ratio of rubber hardness degree according to international scale at 100°C of second elastomer material measured according to Standard ISO 48 and rubber hardness degree according to international scale at 100°C of first elastomer material measured according ISO 48 is equal to not less than approximately 1.10.
EFFECT: improved tire-to-road adhesion and steerability of tire.
36 cl, 2 ex, 3 tbl, 7 dwg
FIELD: tire industry.
SUBSTANCE: invention relates to two-wheel and four-wheel vehicles and pneumatic tires for automobiles. Proposed pneumatic tire contains one layer of carcass and one ring reinforcement member coupled with said carcass layer, tread band made of elastomer material in radially outer position relative to carcass, band arranged between carcass and tread band and pair of side strips opposite in axis on carcass. Thread band contains great number of first sectors arranged at a distance along axis and narrowing inwards along radial direction, great number of second sectors arranged at a distance along axis and narrowing outwards along radial direction. First and second sectors adjoin each other in axis along cross extension of tread band. Ratio between A Shore hardness at 23°C of first sectors measured according to DIN 53505 Standard and A Shore hardness at 23°C of second sectors measured according to DIN 53505 Standard exceeds 1.10. Method of manufacture of such pneumatic tire is described in invention.
EFFECT: provision of pneumatic tire featuring high adhesion with road in proportion to wear of tread.
26 cl, 6 dwg
FIELD: transport engineering.
SUBSTANCE: invention relates to wheels with increased antislip properties. Proposed wheel has working surface with antislip members and elastic rings installed in longitudinal grooves made on working surface. Outer surface of rings projects over working surface of wheel.
EFFECT: simplified designed of wheel.
FIELD: transport engineering; tires.
SUBSTANCE: proposed tire is provided with antislip members in form of stud made of wear resistant material and arranged over tire circumference. Studs are hinge-interconnected by means of fasteners to form flexible chain embedded in tire body with projection of stud over outer surface by 0.5-2 cm.
EFFECT: increased reliability and service life of antislip device.
4 cl, 3 dwg
FIELD: automotive industry.
SUBSTANCE: proposed tire has V-shaped grooves of tread with top pointed forwards, with interval up to 50 mm and greater, and width and depth up to 20 mm depending on mass of vehicle (bus, truck, aircraft). Tire is provided with V-shaped abrasive element fitted in and made of abrasive material consisting of silicon carbide, titanium carbide, fillers and binders. Lower layer of element is made of more cheap material, particularly, of titanium alloy.
EFFECT: increased antislip and wear-resistant properties of tire tread.
SUBSTANCE: invention relates to a rubber mixture for tyres and a studless tyre for a passenger vehicle. The rubber mixture for tyres includes a rubber component and finely ground silicon dioxide, where the rubber component contains modified natural rubber with phosphorus content of 200 ppm or less and butadiene rubber. The finely ground silicon dioxide has CTAB specific surface area of 180 to 600 m2/g and BET specific surface area of 185 to 600 m2/g. For 100 wt % of the rubber component, the amount of the modified natural rubber is 50 to 80 wt % and the amount of butadiene rubber is 20 to 50 wt %.
EFFECT: invention provides well balanced improvement of fuel saving, wear resistance and movement characteristics on an ice-covered and snow-covered road.
8 cl, 2 tbl, 7 ex, 1 dwg
FIELD: automotive industry.
SUBSTANCE: tire comprises protrusions separated by longitudinal zigzag-shaped grooves to the central rib, middle and lateral rows of protrusions. In the protrusions of the middle rows the inserts of the material are mounted orderly next but one protrusion inside, having the large linear expansion when heated to 40°C.
EFFECT: increase in vehicle flotation in winter and increase in speed and comfort parameters in summer.
SUBSTANCE: invention relates to automotive industry. The tire contains tread surface having profile with multiple various radii of curvature in its meridional section. K1 parameter calculated from width of L1 contour and width of developed tread TDW according to following formula (1) meets requirement 0.6≤K1≤0.9, and K2 parameter calculated from central part curvature radius TR1 and tire outer diameter D according to following formula (2) meets requirement 2.0<K2. K1=L1/(TDW"Ч"0.5) (1); K2=TR1/OD (2).
EFFECT: higher slip resistance coefficient at light loads on tire and vehicle protection against loss of control.
3 cl, 4 dwg, 1 tbl
SUBSTANCE: wheel consists of elements embedded therein and including the material with magnetocaloric effect that can be cooled by ambient air or solids of revolution. Vehicle body incorporates permanent magnets to be extended towards the wheel and solids of revolution, said permanent magnets being fitted inside said solids of revolution. At braking on icy road, solids of revolution with permanent magnets extend toward the wheel while elements of magnetocaloric material are heated to transfer heat to solids of revolution or to permanent magnets depending on what element not-heat-insulated contacts with the wheel.
EFFECT: higher wheel friction on ice-covered ground.
4 cl, 16 dwg
SUBSTANCE: composition includes a rubber component selected from a group consisting of synthetic diene rubber and natural rubber, and an oligomeric resin obtained from component a) which includes at least one monomer which is a terpene selected from a group consisting of α-pinene, β-pinene, δ-3-carene, 3-carene, D-limonene, and dipentene, component b) which includes at least one monomer selected from a group consisting of styrene and α-methylstyrene, and component c) which includes a monomer which is phenol.
EFFECT: obtaining additives for making tyres which improve properties thereof.
3 cl, 6 tbl
SUBSTANCE: invention relates to tread of tires passenger carriers suitable for sport cars. Tire comprises tread with mean radial height HB, outer edge (45) and inner edge (46). Tread comprises first area (411) of first rubber compound extending from outer edge (45) to first axial position located at axial distance from outer edge making 20-40% of axial width L. Tread comprises second area (412) of second rubber compound extending from first axial position to second axial position located at axial distance from outer edge making 50-60% of axial width L. Tread comprises third area (413) of third rubber compound extending from second axial position to third axial position located at axial distance from outer edge making 80-90% of axial width L. Its fourth area (414) of fourth rubber compound extending from third axial position to tread inner edge (46).
EFFECT: trade-off between grip of wet and dry soil.
5 cl, 14 dwg, 2 tbl
SUBSTANCE: tire tread has at least two wearing plies including outer wearing ply and at least one inner wearing ply located at mid tread under outer wearing ply, and at least one outer groove located in outer wearing ply. Besides, said tread features volumetric cavity ratio of 0.25-0.40 in sound state and of about 0.25-0.40 in worn-out state. External side interacting with ground extends along one of inner wearing ply in worn-out tread. Additionally, said tread features contact surface ratio of 0.66-0.72 in sound state and of about 0.56-0.66 in worn-out state.
EFFECT: enhanced performances.
15 cl, 19 dwg
SUBSTANCE: rubber mixture contains at least one polar or nonpolar rubber and at least one pale-coloured and/or dark filler, at least one plasticiser, where the plasticiser contains polycyclic aromatic compounds in accordance with Instruction 76/769/EEC in amount of less than 1 mg/kg, and a carbon source for the plasticiser is derived from non-fossil sources, wherein the plasticiser and the carbon source are obtained through at least one "biomass to liquid" process and contain other additives.
EFFECT: invention increases longevity of the rubber mixture in tyres, compatibility thereof with the environment and ensures independence from oil as a raw material source.
61 cl, 4 tbl
SUBSTANCE: tread rubber 2G comprises: subtread ply 9 consisting of non-electro conducting rubber including silicon dioxide in width equal, in fact, to that of cords ply 7 reinforcing the tread. It includes conducting area 11 consisting of conducting rubber extending axial to cover subtread ply outer surface and including opposite ends 11a, 11b extending outward from subtread ply 9 and connected with tire elements Ty electrically connected with rim J with tire fitted thereon. Tire tread 10 consists of non-electro conducting rubber including silicon dioxide and arranged outside said conducting area 10 to make the major contact surface area 2a. Conducting area 10 is bent to extend outward in tire radial direction. Conducting area outer surface 11A extends to contact surface 2a. Tire tread 10 includes first part 10A arranged at one side of conducting area outer surface 11A in tire axial direction and second part 10B located at opposite side of outer surface 11A.
EFFECT: lower rolling resistance, better homogeneity and conductance.
11 cl, 16 dwg, 1 tbl
SUBSTANCE: tread rubber has subtread rubber composed by first non-electro conducting rubber band, running surface rubber composed by helical winding of second non-electro conducting rubber band and conducting area extending through subtread rubber and running surface rubber in radial direction. Conducting area consists of two sections. First conducting section consists of the first conducting rubber band wound inside subtread ply rubber so that it is applied on first non-electro conducting rubber band. Second conducting section consists of the second conducting rubber band wound inside subtread ply rubber so that it is applied on second non-electro conducting rubber band. Exposed surface area composed by radially top end of the first conducting section and exposed surface area formed by radially bottom end of said second conducting section are inclined in different directions relative to tire lengthwise direction to intersect.
EFFECT: higher reliability of tire conductance.
5 cl, 11 dwg, 2 tbl
FIELD: road vehicles.
SUBSTANCE: proposed tire has radial body with one or several breaker layers on place close to outer surface, and strengthening layer with nylon cord wound in spiral over breaker. It is desirable that tread belt of tire be formed by underlayer and outer layer, one placed on the other, elasticity and/or hardness characteristics of first layer remaining stable at temperatures within 20 and 110oC.
EFFECT: improved performance characteristics of tires.
23 cl, 4 tbl, 2 dwg
FIELD: rubber industry; tires.
SUBSTANCE: invention relates to pneumatic tire designed for running on ice. Proposed tire has layer of foam rubber of surface in contact with road pavement, expansion ratio of foam rubber layer being 3-50%. To form layer of foam rubber, rubber mix is used containing natural caoutchouc and polybutadiene caoutchouc as rubber component, carbon soot, silicon dioxide, organic fibers (a) free from microparticles and organic fibers (b) containing microparticles, ratio of mixing of organic fibers (a) free from microparticles with organic fibers (b) containing microparticles being within 98/2-2/98.
EFFECT: provision of perfect running on ice (braking and adhesion characteristics on plane), convenience and ease of manufacture of tire.
9 cl, 12 ex, 2 tbl, 4 dwg
FIELD: rubber industry; other industries; compositions for production of the treads of the pneumatic tires and the methods of the compositions production.
SUBSTANCE: the invention is pertaining to the cross-linkable or cross-linked rubber composition characterized by the diminished hysteresis properties in the cross-linked state and by the improved manufacturability in the non-cross-linked state, to the method of its production, to the tread of the pneumatic tire and to the pneumatic tire. The composition contains the reinforcing filler consisting of the reinforcing inorganic filler, and, at least, one diene elastomer. The diene elastomer is produced in the form of the emulsion or the solution. The elastomer produced in the form of the solution has the molar contents of the conjugated dienes links exceeding 30 % and is produced at the following stages. At the first stage the initial diene elastomer is subjected to the reaction of the hydroaluminization or carboaluminization along the chain in the inert hydrocarbon solvent by addition to it of the aluminum-containing agent. At the second stage the produced product is added with, at least, one electron-seeking reagent intended for interaction with the indicated aluminum-containing agent. At the third stage they stop the process of the reaction of the second stage and extract the elastomer containing the functional groups of the carboxylic acid along the chain. The reinforcing inorganic filler is selected from the group including the highly dispersive silica, argil, Al(OH)3. The method of production of the composition includes the first stage of the thermomechanical treatment of the above-indicated elastomer and the reinforcing inorganic filler at the maximal temperature from 130°С up to 200°С, and the second stage of the mechanical working at the temperature smaller than the temperature of realization of the first stage with introduction of the cross-linking system. The diene elastomer received in the emulsion contains the functional groups of the carboxylic acid along the chain and is produced using the emulsifying solution by the method of the copolymerization by the following way. To the indicated emulsifying solution of the monomer or the monomers of the conjugated diene (the conjugated dienes) possibly with one or the several vinyl aromatic compounds add the comonomer consisting of unsaturated aliphatic carboxylic acid taken from the group consisting of the acrylic acid, the methacrylic acid, the maleinic acid, the fumaric acid. The method of production of the above-indicated composition includes the first stage of the thermomechanical working of an above-stated elastomer and the reinforcing inorganic filler, except for the system of cross-linkage at the maximal temperature from 130°С up to 200°С, and the second stage of the mechanical working at the temperature smaller than the temperature of realization of the indicated first stage with addition of the cross-linkage system. In one of the versions of the method the composition includes two phases of the first stage: At the first phase of thermomechanical working they introduce completely the whole amount of the monoxide for activation of the subsequent cross-linkage and intermix all the components, at the second phase they introduce the antioxidant and admix with components of the first phase. In the other version at the first phase of the first stage they introduce zinc monoxide and magnesium monoxide. The invention allows to produce the composition with the improved hysteresis properties in the cross-linking state and the pneumatic tire containing the tread produced from the composition with the reduced resistance to the rolling movement.
EFFECT: the invention ensures production of the composition with the improved hysteresis properties in the cross-linking state and the pneumatic tire containing the tread produced from the composition with the reduced resistance to the rolling movement.
20 cl, 10 tbl, 9 ex