Agricultural tyre

FIELD: agriculture.

SUBSTANCE: tyre (1) contains a frame (5), a protector (2) supported by the frame (5) and provided with cleats (4); a breaker (8) located between the frame (5) and the protector (2) and having external and internal layers (9, 10) located one above the other, each of them having metal cords (14) embedded in the rubber strip (15). In addition, the agricultural tyre (1) comprises two protector wedges (13), each located between the locally diverging lateral ends of the two protector layers (9, 10); and the two ends of each protector layer (9, 10) are covered by respective protective caps (16, 17), each made of rubber and bent around the corresponding end of the layer to form a U-shape.

EFFECT: increased service life of the tyre.

14 cl, 6 dwg

 



 

Same patents:

FIELD: transport.

SUBSTANCE: invention relates to car tires suitable for sportsters. Tire comprises tread divided by tire mid surface into first semi-tread (41) extending axially from mid surface to tread first edge (45). Note here that first semi-tread includes the primary circumferential groove (141) opening to rolling surfaces. Besides, tire includes semi-tread (42) extending axially from mid surface to tread second edge (46). Additionally, tire includes extra stiffener (151) composed of multiple radially-oriented thread-like reinforcing elements. Note here that said extra stiffener is located in radial direction from carcass reinforcing element inner side and levelled directly in radial direction relative to the primary circumferential groove.

EFFECT: more uniform wear, longer life, higher stiffness of tire crown zone.

9 cl, 18 dwg

FIELD: transport.

SUBSTANCE: proposed tire comprises carcass including at least one carcass ply (101), breaker (105) arranged radially outward relative to said carcass. Said breaker comprises the following components: First breaker ply (105a) and second breaker ply (105b). Every of said plies comprises reinforcing cords crossing at the angle to 10-40 degrees. Third breaker ply (105c) includes cords arranged at 10-70 degrees and tread strip (106). It includes at least two inserts (104) arranged between appropriate axial edges of said breaker (105) and said tread strip (106). Every said insert includes first part (104a) converging in equatorial plane of the tire. Every said insert is made of first vulcanised elastomer including diene polymer and definite amount of reinforcing filler. Said reinforcing filler contains at least 70% of silicon dioxide.

EFFECT: higher rolling resistance.

15 cl, 2 dwg, 5 tbl

The invention relates to pneumatic tires, particularly tires of radial construction with a textile belt

The invention relates to pneumatic tires, particularly tires of radial construction, containing tread rubber woven steel cord or its combination with rubber nylon cord

The invention relates to the automotive industry

The invention relates to the automotive industry and is designed primarily to equip vehicles medium or large-capacity

The invention relates to pneumatic tires, particularly tires of radial construction, breakers which reinforced rubber blade from metal latunirovannaya filaments of rectangular cross-section

The invention relates to the automotive industry, in particular intended for heavy vehicles or wheeled road construction equipment

FIELD: transport.

SUBSTANCE: tire comprises at least two working plies (41, 43) and at least one ply of circumferential metal reinforcing elements (42). Said ply of circumferential metal reinforcing elements consists of at least one central part (422) and two axially outer parts (421). Central part reinforcing elements of at least one ply of circumferential reinforcing elements represent reinforcing elements cut to sections (6). Length of said sections makes smaller than 550 mm, distance (d) between sections exceeds 25 mm, length of sections is 1.1-13 times larger than the distance between the ends of two sequential sections. Reinforcing elements of two parts (421), external in axial direction, are continuous.

EFFECT: longer life, higher wear resistance.

16 cl, 5 dwg

FIELD: transport.

SUBSTANCE: proposed tire comprises carcass including at least one carcass ply (101), breaker (105) arranged radially outward relative to said carcass. Said breaker comprises the following components: First breaker ply (105a) and second breaker ply (105b). Every of said plies comprises reinforcing cords crossing at the angle to 10-40 degrees. Third breaker ply (105c) includes cords arranged at 10-70 degrees and tread strip (106). It includes at least two inserts (104) arranged between appropriate axial edges of said breaker (105) and said tread strip (106). Every said insert includes first part (104a) converging in equatorial plane of the tire. Every said insert is made of first vulcanised elastomer including diene polymer and definite amount of reinforcing filler. Said reinforcing filler contains at least 70% of silicon dioxide.

EFFECT: higher rolling resistance.

15 cl, 2 dwg, 5 tbl

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Automotive tire flange fittings consist of three separate elements. Said elements included radial carcass reinforcement 2 composed by reinforcements and connecting two tire beads 3, flange pad layer 4 consisting, mainly, of reinforcements parallel with tire circumference and triangular layer 5 consisting, mainly, of reinforcements 55 making the angle of 10 to 80 degrees with tire circumference. Said reinforcements 55 of triangular layer 5 have flattened cross-section.

EFFECT: decreased weight.

14 cl, 9 dwg

Pneumatic tire // 2456168

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Tire carcass ply is laid between two double beads. Breaker ply is recessed on carcass ply outer peripheral side in tread section. Tread is provided with multiple main grooves extending along tire circle. Maximum depth of each main groove varies from 8.5 mm to 15.0 mm. Relationship between height of actual tire profile SH and that of profile SHstd calculated from tire size is set to 0.97≤α≤0.99. Relationship between contact areas makes 65-70% under conditions of measurements whereat air pressure makes 200 kPa and load making 50% of bearing capacity at said air pressure. Mean contact pressure P varies from 300 kPa to 400 kPa.

EFFECT: longer life, efficient braking on moistened surface.

13 cl, 4 dwg, 1 tbl

FIELD: transport.

SUBSTANCE: proposed tire differs from known designs in that width 2W of breaker layer 12 arranged radially outward made up of breaker layers that form breaker 8 makes 60-70% of tire maximum width MW.

EFFECT: better run on ice, simplified design.

3 cl, 2 dwg, 1 tbl

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Proposed tire features ellipticity factor equal to or under 50%. Breaker layers 9, apart from outer breaker layer 10, are arranged so that breaker layer cords are arranged at θ 10-70° relative to tire lengthwise direction. Said outer breaker layer 10 is made of coiled layer 12 of coiled tape provided with steel cords in tire lengthwise direction. Said breaker layer 10 comprises section 10A located between fold position Po on opposite sides from tire equator and fold position 10B bent in U-like manner from position Po toward tire equator. Section 10A features width varying from 70% to 80% of width of contact between tread and ground while fold section 10 B has width varying from 5.0 mm to 0.5 of width.

EFFECT: longer life.

9 cl, 8 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Three belt layers (8, 9, 10) are arranged on outer peripheral surface of tire carcass in support section. Note here that said belt layers have angle a of inner belt layer (8) to direction along tire circumference varies from 15° to 30°, angle β of the cord of medium belt layer (9) to direction along tire circumference makes at least 40° angle γ of outer belt layer (10) to direction along tire circumference varies from 35° to 70°.

EFFECT: higher stability and control over punctured tire, stable driving on snow.

13 cl, 5 dwg, 3 tbl

FIELD: chemistry.

SUBSTANCE: band made from crude fabric can be used as an auxiliary layer, cushion layer and reinforcement base in the carcass of a tyre. The band is made by saturating crude mini-fabric, which contains several separate strands, with a solvent based adhesive. The adhesive, which contains a solvent and an elastomer composition, is dried such that, most of the solvent evaporates. The elastomer composition remains, covering the fabric and forming a band that way.

EFFECT: reduced cost of making the said band, as well as improvement of its quality.

12 cl, 7 dwg

FIELD: transport.

SUBSTANCE: tyre contains at least two inserts (104) made of stitched elastomeric material radial superimposed from outside with regard to breaker construction element near outer axial edges of breaker construction element. At that, each insert contains inner, as per axis, part located between breaker construction element and tread band, insert tapers towards tyre girdle and outer, as per axis, part located between skeleton construction and respective tyre side and insert tapers towards tyre axis of rotation. Stitched elastomeric material has dynamic modulus of elasticity (E') measured at 70°C comprising less than 7 MPa.

EFFECT: increase of reliability and quality of tyre.

38 cl, 2 dwg, 2 tbl, 2 ex

FIELD: transport engineering; tire industry; highly efficient tires.

SUBSTANCE: proposed tire for vehicle wheels includes carcass structure of toroidal shape whose opposite side edges are coupled by corresponding right-hand side and left-hand side bead wires to form corresponding beads; breaker structure applied in outer relative to radius position relative to said carcass structure: tread band radially applied to breaker structure; at least one layer of cross-linked elastomer material applied in inner relative to radius position relative to said tread band; pair of side strips applied from side to opposite sides relative to carcass structure; at least one layer of cross-linked elastomer material has following characteristics: dynamic modulus of elasticity E¹ measured at 70°C not lower than 20 MPa, preferably, from 25 MPa to 50 MPa; ratio between modulus of elasticity at extension at 100% elongation (MIOO) and modulus of elasticity at extension at 10% elongation (MIO) not lower than 1.5, preferably, from 2 to 5. One layer of cross-linked elastomer material is preferably laid between tread band and breaker structure. Invention provides better characteristics of tire during operation at high driving speed and/or extreme driving conditions - rigid steering, simultaneously with satisfactory behavior at normal driving conditions - soft steering.

EFFECT: improved service characteristics of tire.

50 cl, 4 ex, 5 tbl, 2 dwg

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: automotive industry.

SUBSTANCE: proposed elastic tire carrying load without internal air pressure includes tread in contact with ground and areas of side strips passing in radial direction inwards from tread area and secured in tire bead areas adapted for remaining connected with wheel when tire rolls. Reinforced ring strip is arranged inside tread in radial direction. Said contains elastomer layer working in shifting, at least first diaphragm connected with inner surface of elastomer layer working in shifting is radial direction, and at least second diaphragm connected with external surface of elastomer layer working in shafting in radial direction.

EFFECT: improved reliability of tire owing to possibility of its operation in deflated state.

27 cl, 1 tbl, 13 dwg

FIELD: automotive industry; tire industry.

SUBSTANCE: reinforcing members of reinforcing material layer are provided with separate coating made of rubber mixture of preset composition and physical properties. Reinforcing members arranged parallel to each other are coated at one side with first rubber layer or so-called first lining layer featuring constant composition and properties, while on opposite side, members are coated with second lining rubber layer of composition and properties changing as a function of meridional position on said layer in pneumatic tire.

EFFECT: increased strength of tire.

29 cl, 5 dwg

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