Tire pneumatic tires of radial construction

 

The invention relates to pneumatic tires, particularly tires of radial construction, breakers which reinforced rubber blade from metal latunirovannaya filaments of rectangular cross-section. Tire rubber brass-plated metallic yarn rectangular cross-section in the belt is made of soft plastic steel with a temporary tear resistanceinwithin 125-175 kgf/mm2and the ratio of the mass of reinforcing material of the breaker, without taking into account the weight of the rubber in the belt, the weight of the tires is 8.5-25%. The technical result - the creation of a pneumatic tyre radial build, containing tread rubber blade from latunirovannaya metal filaments of rectangular cross-section with the ratio of thickness to width of from 0.2 to 0.6, or a combination of the specified canvas with rubber nylon cord, with high manufacturability reinforcing material and a higher wear resistance and operational mileage tires. 1 table, 1 Il.

The invention relates to pneumatic tires, particularly tires of radial construction, breakers which reinforced rubber cloth made of metal brass is, Brecker which reinforced rubber blade from metal latunirovannaya strands of rectangular cross section with rounded edges, and the ratio of thickness to width of from 0.2 to 0.6 or specified reinforcing material combined with rubber cord woven from polyamide filaments, the ratio of the mass of reinforcing material of the breaker, without taking into account the weight of the rubber in the belt to the weight of tires less than 8.5% - the closest analogue [1].

A disadvantage of the known tires of radial construction is the lack of adaptability of reinforcing material in the manufacture of tires, and not fully realized the possibility of increasing the wear resistance and mileage of the tire in use.

The aim of the invention is the creation of a pneumatic tyre radial build, containing tread rubber blade from latunirovannaya metal filaments of rectangular cross-section with the ratio of thickness to width of from 0.2 to 0.6, or a combination of the specified canvas with rubber nylon cord, with high manufacturability reinforcing material and a higher wear resistance and operational mileage tires.

This goal is achieved by the fact that in the proposed tire rubber brass-plated metal is breakinginwithin 125-175 kgf/mm2and the ratio of the mass of reinforcing material of the breaker, without taking into account the weight of the rubber in the belt to the weight of the tires is 8.5-25%.

Tested tyres manufactured at JSC "Yaroslavl tyre plant" by using twisted steel cord significantly enhance understanding of the capabilities of a steel cord in relation to the bus.

Soft and ductile metal, for example, with a temporary tear resistancein150 kgf/mm2greatly simplifies the process of manufacturing a tire using existing equipment to obrezinivanie and cutting of steel.

Navitas steel cord made of soft plastic latunirovannaya steel provides 100% of the stiffness of the rubber between the threads, and the configuration of the filaments of rectangular cross-section allows for the conservation of mass of the breaker to increase the additional mass of metal by weight of the rubber in the belt with additional effect in improving operational mileage tires, in addition, to reduce the cost of manufacture of the reinforcing material at the expense of metal and simplify the technological process of manufacturing metal-bearing threads method of conditioning.

The proposed solution is alternatve tires - this combination of maximum strength with low weight.

The invention is illustrated by the drawing, which shows a cross section of a pneumatic tyre radial build, and table.

The proposed option of a pneumatic tyre includes a breaker of 6 layers of rubber latunirovannaya steel cord filaments of rectangular cross-section 0,5x2,0 mm with a pitch of 2.8 mm, caliber obrezinivanie 1.5 mm, with the ratio of the mass of reinforcing material of the breaker to the weight of the tires 13,81% (1), protector (2) and frame (3); the closest analogue includes a breaker of 4 layers of rubber latunirovannaya steel cord filaments of rectangular cross-section 0,4x2,0 mm increments 2.6 mm, caliber obrezinivanie 1.4 mm, with respect to the mass of reinforcing material of the breaker to the weight of the tires 8,075%, protector (2) and frame (3).

Lifetime offer of tyres in comparison with the closest analogue increased by 20-60%.

Sources of information taken into account 1. RF patent 2079240, priority 18.03.97,, published. B 13, 97, is the closest analogue.

Claims

Tire pneumatic tires of radial construction, Brecker which reinforced rubber blade from latunirovannaya rectangular metal thread is om in combination with rubber cord woven from polyamide filaments, characterized in that a brass-plated metallic yarn is made of soft plastic steel with a temporary tear resistanceinwithin 125-175 kgf/mm2and the ratio of the mass of reinforcing material of the breaker without the mass of rubber in the belt to the weight of the tires is 8.5-25%.

 

Same patents:

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

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 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: machine building.

SUBSTANCE: invention relates to automotive industry, in particular, to passenger cars tires. Tire comprises two beads (20), each of which contains, at least, one circular reinforcing structural element (70), and carcass stiffener (60) fixed in two beads by wrapping, in which every bead comprises filler (110) formed from rubber mixture. Filler passes in radial direction on distance DBE determined in radial direction from bead radial circular reinforcing structural element innermost point. DBE distance in radial direction is smaller than or equals to 10% of tire profile height H in radial direction. At least, one tire bead additionally comprises stiffener (140), formed from plurality of metallic reinforcement elements (145, 146, 147), oriented at angle, which is less than or equal to 10 degrees relative to direction along circumference.

EFFECT: technical result is reduced rolling resistance in combination with good durability.

13 cl, 11 dwg, 2 tbl

Agricultural tyre // 2640293

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

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