In which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag and and (B60C11/04)

B60   Vehicles in general(31835)
B60C11/04                     In which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag (b60c0011120000, b60c0011130000 take precedence);;(119)

Pneumatic tyre // 2628551
FIELD: automotive engineering.SUBSTANCE: tire tread has a ribbed pattern that includes at least four major grooves (11, 12) and at least five rows of contact areas (10, 20, 30). A plurality of curved grooves (21), each having a curved shape, are formed on an intermediate contact area (20) located on the inside of each main groove (12) of the shoulder region. Each of the curved grooves (21) has one end part opening to the main groove (12) of the shoulder region and the other end part closed on the intermediate contact area (20). Each of the curved grooves (21) consists of the first inclined area of the groove extending from the open end part to the curved part and the second inclined area of the groove extending from the curved part to the closed end part. The direction oriented from the open end part of the first inclined area of the groove to the curved part coincides with the rotation direction (R) and the second inclined area of the groove is bent towards the first inclined area of the groove. The curved part serves as a vertex.EFFECT: uneven wear of the tire is suppressed while driving along a circular path and the increase in noise after wear is prevented.13 cl, 6 dwg, 1 tbl

Tire protector and production method // 2626426
FIELD: automotive industry.SUBSTANCE: tire protector (110) comprises a plurality of ribs (122-126) or blocks, a plurality of grooves (142, 144, 146, 148) and a plurality of slots. Each of ribs (122-126) has a length in the circumferential direction, a width in the axial direction; and a radial depth. A plurality of grooves (142, 144, 146, 148) are set by adjacent ribs (122-126) or blocks. A plurality of ribs (122-126), each of which is disposed between two grooves of the plurality of grooves (142, 144, 146, 148) defines a plurality of central ribs (123, 124, 125). A plurality of slots (150) formed in each of central rib (123, 124, 125). Each of slots (150) extends along central ribs (123, 124, 125) without contacting grooves (142, 144, 146, 148), each of slots (150) is straight and angular to the axial direction, where the angle of each slot (150) refers to either the first plurality of angles, where all angles are equal to or more than 0 degrees, and do not exceed 70 degrees; or to the second plurality of angles, where all angles are equal to or more than -70 degrees, and do not exceed 0 degrees. Each slot (150) has a thickness which does not exceed 2.00 mm. Each slot (150) is spaced in the circumferential direction from the adjacent slot to a certain interval of a certain length that does not exceed 20 mm. The interval length ratio to the length of the tire contact area with the support surface that is formed after applying the standard load to the tire with a standard internal pressure is less than 0.062.EFFECT: reduced protector wear rate or improved performance of the clutch force.28 cl, 7 dwg, 1 tbl

Pneumatic tire // 2620398
FIELD: transportation.SUBSTANCE: on the tread surface there are a plurality of main grooves extending in the circumferential direction of the tread, and a plurality of stripes, bounded with the main grooves and tread edges, wherein the central strip rigidity in the tread circumferential direction is less than the rigidity of the nearby strip adjacent to the central strip from respective sides.EFFECT: tire tread central part wear degree reduction and therefore improved tread adhesion with the support surface.7 cl, 8 dwg, 3 tbl

Tread comprising relief elements covered with thermoplastic material // 2618576
FIELD: automotive industry.SUBSTANCE: tire tread comprises a number of relief elements (1) with side surfaces (13, 14, 15, 16) and a contact surface (2) designed to contact with the road during tire rolling provided with the mentioned tread, where the contact boundary of the land contact surface (2) forms at least one rib (23, 24, 25, 26). The tread comprises a number of cutouts (3, 4) in the form of grooves and/or incisions, where the mentioned cutouts (3, 4) are bounded with the opposed side surfaces. Each relief element (1) is made using at least one first rubber mixture. The tire tread has, in a sectional view in plane including the tread thickness, at least one surface, defining at least one cutout, covered at least partially with a layer of coating material. The coating material is a thermoplastic polymer composition with Young's modulus over than 100 MPa, wherein the thermoplastic polymer composition comprises at least one thermoplastic polymer with a positive glass transition temperature, poly(p-phenylene)ether ("PPE") and unsaturated functionalized styrenic thermoplastic elastomer ("TPS") with a negative glass transition temperature. TPS elastomer comprises functional groups selected from epoxy, carboxyl, anhydride groups or groups of acid compound ether.EFFECT: improved tire adhesive properties, in particular adherence to a snow-covered road.14 cl, 9 dwg, 1 tbl

Tire and method to make tire // 2614402
FIELD: transportation.SUBSTANCE: tire is made with a ring reinforcing layer formed by rubber strips wound along the spiral in the same direction from different places arranged in the direction along tire width. Rubber strips (12A and 12 B) are arranged with clearances on the part of the tire or along the entire tire in direction along width. Together with end sections of rubber strips, at least the middle end sections (12Bs and 12Ae), located on the side of the equatorial plane of the tire, are located in areas, where the middle end sections are fully covered with the units (2a) of the tread in the form of a rib in direction along tire width, and width of tread units in the form of a rib covered with the middle end sections is defined as W, and the width of rubber strips is defined as G (mm), at the same time the ratio G<W is met.EFFECT: reduced frequency of cracks in grooves in all tires, which contain a circular reinforcing later wound along spiral.7 cl, 2 dwg, 1 tbl

Thick protector for construction machinery // 2614401
FIELD: transport.SUBSTANCE: invention relates to automotive tire. Tread comprises blocks (3) in the central part and the boundary edges (2, 4). Every boundary edge (2, 4) has numerous deepenings (21, 41) forming saddles. Each saddle is limited by the walls oriented in the transverse direction over its entire height, and the wall, oriented in the circumferential direction. Each saddle (21, 41) has a geometry suitable for receiving at least the end part of the central zone with the backlash Ac (measured in the circumferential direction) and the transverse gap AT (as measured in the transverse or axial direction). These Ac and AT gaps are determined so as to ensure that under normal operating conditions of the tire provided with the noted tread, the end part (302, 304) of the block central zone will be at least partially in contact with at least one of the walls of each saddle (21, 41) oriented in the transverse direction, thereby preventing the contact of each of the blocks (3), the ends of which are locked in these recesses, with the adjacent blocks of the central row.EFFECT: invention provides an improved tire traction characteristics with the ground, as well as increase strength and the tire tread durability.7 cl, 4 dwg

Pneumatic tire // 2610737
FIELD: transportation.SUBSTANCE: longitudinal narrow grooves (16) are placed with density of at least 0.06 groove/mm and not more than 0.2 groove/mm in transverse direction of the tire. Narrow grooves (20) in the transverse direction stretch at the angle of at least -45° and not more than +45° in respect to the transverse direction of the tire. Longitudinal narrow grooves (16) have at least one bent section. Angle of bent section bending is at least 40° and not more than 160°.EFFECT: improved characteristics of braking and turning on ice.17 cl, 6 dwg, 1 tbl

Pneumatic tire // 2610736
FIELD: transportation.SUBSTANCE: longitudinal narrow grooves (18) are placed with density of placement in transverse direction of the tire from 0.06 groove/mm to 0.2 groove/mm. Narrow grooves (22) have at least one bent section in the transverse direction. Angle of bent section bending is at least 40° and not more than 160°.EFFECT: improved characteristics of braking on ice, snow and water drainage.11 cl, 5 dwg, 1 tbl
Pneumatic tyre // 2608550
FIELD: motor industry.SUBSTANCE: invention relates to automotive industry. Tread comprises inner and outer edges, of internal and external central main grooves passing in longitudinal direction, located on both sides of tire equator and limiting central area between them, inner and outer shoulder main grooves passing in longitudinal direction, arranged axially outside from internal and external central main grooves, two medium areas, including inner middle area, limited by inner central main groove and inner shoulder main groove, and outer middle area limited by outer central main groove and outer shoulder main groove, two shoulder areas. Outer shoulder main groove has width smaller than that of other main grooves. Outer middle area has width exceeding that of inner middle area. There are also shoulder transverse grooves, each of which passes from outer edge to tire equator beyond outer shoulder main groove limits.EFFECT: improved stability of steering and uneven wear resistance while maintaining drainage characteristics.10 cl, 4 dwg, 1 tbl

Pneumatic tyre // 2607491
FIELD: machine building.SUBSTANCE: invention relates to automotive industry, in particular, to a winter tire tread pattern. Pneumatic tire comprises annular grooves, multiple transverse grooves and longitudinal grooves, communicating between transverse grooves on outer side of the annular grooves in a tire width direction. Each transverse groove includes the first part of the transverse groove, the second part of the transverse groove located farther outward in a tire width direction than the first part of the transverse groove, and a transition part of the transverse groove connecting the first and the second parts of of the transverse groove. Centre of the groove in width of the outer end in a tire width direction, the first part of the transverse groove is located closer to one peripheral side of the tire, than the centre of the groove in width of the inner end in a tire width direction, the second part of the transverse groove. Longitudinal grooves are inclined relative to tire circumferential direction to the opposite side, on which a transition part of the transverse groove passes. End on one circumferential side of the tire of each longitudinal groove is connected with a section, where the second part and the transition part of the transverse groove on one peripheral side of the tire are connected together. End on the other circumferential side of the tire of each longitudinal groove is connected with a section, where the first part and the transition part of the transverse groove on the other peripheral side of the tire are connected together.EFFECT: technical result is improvement of drainage characteristics at good operational features on snowy and icy roads.5 cl, 3 dwg

Pneumatic tyre // 2605808
FIELD: motor vehicle industry.SUBSTANCE: invention relates to automotive industry, in particular, to winter tire. Tread 2 of pneumatic tire is divided by central longitudinal grooves and shoulder longitudinal grooves onto central portion 6, outer middle portion 7A, inner middle portion 7B, outer shoulder portion 8A and inner shoulder land portion 8B. Outer shoulder portion 8A includes a number of external shoulder blocks 22 separated by outer shoulder longitudinal grooves 5A. Inner shoulder portion 8B includes inner shoulder longitudinal grooves 26 containing inner end 26i and outer end 26o within portion 8B, and inner shoulder auxiliary grooves 28 located between inner shoulder longitudinal grooves 26, 26, adjacent in longitudinal direction, and containing inner end 28i and outer end 28o within portion 8B. Inner mid portion 7B includes inner middle additional groove 18 extending continuously in longitudinal direction, and the inner middle connecting bars 21.EFFECT: improved drainage characteristics of tire, as well as running characteristics on snowy and icy road while maintaining stable steering on dry road surface.6 cl, 5 dwg, 1 tbl

Tyre // 2605220
FIELD: machine building.SUBSTANCE: invention relates to automotive industry, in particular, to tires. Tire comprises running sections, formed on tread section, and breaker layers. Running sections are divided into segments by means of groove in circumferential direction, grooves in width direction and tread end sections along tire width. Length of each groove in tire width direction is not less than 30 % of tread section length along tire width. Every groove in width direction has inclined section. Inclined section is located next to position along tire width, which is connected with breaker layer end section, which has minimum angle between cords, which form breaker layer, and tire circumferential direction.EFFECT: enabling higher driving force on running sections by making inclined sections of tire tread.5 cl, 13 dwg, 2 tbl

High-capacity pneumatic tyre // 2601992
FIELD: motor vehicle industry.SUBSTANCE: present invention relates to automotive industry, in particular, to pneumatic tires. High-capacity pneumatic tire comprises tread, two circumferential grooves, plurality of transverse grooves and tread sett. Sett is equipped with two small grooves, having average depth less than circumferential grooves. Grooves average depth makes more than 20 % and less than 80 % of circumferential grooves depth. Two of small grooves extend into one of transverse grooves and circumferential grooves. One of other small grooves extend into each of two small grooves.EFFECT: achieving better removal of dirt around sett center.9 cl, 8 dwg

Tyre // 2601793
FIELD: machine building.SUBSTANCE: invention relates to tire, preventing overheating in motion. Tire comprises tread with groove passing in circumferential direction, plurality of ledges placed at groove bottom, each running from one side wall to opposite. On one of side walls a recess is made, guiding one-way air flow through grouser groove in circumferential direction. In tire surface projection recess is triangular and located opposite to grouser groove, including output into groove. Recess top is located in grouser groove extension direction and shifted from its center, positioned on such grouser groove central line, perpendicular to said grouser groove extension direction. At that, ledges are arranged in groove with preset intervals.EFFECT: achieved tread in motion overheating prevention.6 cl, 1 tbl, 20 dwg

Pneumatic tyre // 2601504
FIELD: manufacturing technology.SUBSTANCE: invention relates to a pneumatic tyre with a slot (narrow groove) made inside a unit. Pneumatic tyre comprises a unit, divided by multiple annular grooves running along circumferential direction of tyre, and multiple grouser grooves passing diagonally relative to tyre circumferential direction and equipped with two or more curved sections. Tyre also comprises an inclined narrow groove, which divides unit, passes diagonally relative to tyre circumferential direction and parallel to said grouser grooves. Inclined narrow groove is provided with two or more curved sections inside one unit.EFFECT: improved tyre performance when moving on ice, preventing formation of a water film and local wear.8 cl, 11 dwg, 1 tbl

Pneumatic tyre // 2601092
FIELD: machine building.SUBSTANCE: present invention relates to automotive industry, in particular, to pneumatic tires. Pneumatic tire with the pre-set direction of rotation comprises a tread. Tread comprises two side walls, a pair of beads, a ledge and a recess on thee tread side surface. Ledge includes a surface with a steep inclination and a surface with a moderate inclination. Recess opens on the tread surface, it is lowered from the tread side surface and is independent of the ledge.EFFECT: better pneumatic tire adhesion with a snow-covered road.5 cl, 5 dwg

Pneumatic tyre // 2601090
FIELD: machine building.SUBSTANCE: invention relates to automotive industry. Pneumatic tire comprises tread (2) that contains middle land portions (6), which are restricted with central main grooves (3) and shoulder main grooves (4). Middle land portions (6) have inner middle lateral grooves (8) and outer middle lateral grooves (9). Inner middle lateral grooves (8) include: first inclined portions (10), which have the inclination angle (91) of 10-40° relative to the tire lengthwise direction and extend outwards in the axial direction of the tire; second inclined part (12), which have inclination direction, opposite the direction of inclination of first inclined portion (10), extend inwards in the axial direction of the tire and end, and bent portions (11) between them. Outer middle lateral grooves (9) communicate more with second inclined portions (12) than with outer edges (8th) of inner middle lateral grooves (8) in the axial direction and interconnect with shoulder main grooves (4). Outer middle lateral grooves (9) are inclined in the same way as first inclined portions of inner middle lateral grooves (8), and are inclined at an angle (93) 30-70° in the lengthwise direction of the tire.EFFECT: technical result is improvement of drainage and noise characteristics of a tire.7 cl, 2 dwg, 1 tbl

Pneumatic tyre // 2599856
FIELD: equipment and accessories for vehicles.SUBSTANCE: invention relates to a pneumatic tyre with a tread pattern. Tread pattern comprises a set of main grooves, multiple grouser grooves containing multiple central and intermediate grouser grooves to form a plurality of central and intermediate blocks of the contact surface, respectively. Herewith each of two internal main lengthwise grooves comprises first and second walls of the groove facing the first wall of the groove. Each of two external main lengthwise grooves includes a pair of the first or the second walls of the groove facing each other.EFFECT: provided is balance between wear resistance on dry road surfaces and stable steering on wet road coat, as well as stable steering on snow.16 cl, 13 dwg, 2 tbl

Pneumatic tyre // 2596390
FIELD: machine building.SUBSTANCE: invention relates to machine building, particularly, to tires. Pneumatic tire comprises central rib formed by two main lengthwise grooves. In central rib, there are two skewed grooves: main and auxiliary. Multiple main skewed grooves and multiple auxiliary skewed grooves are located next to each other in tire lengthwise direction. Front ends of main skewed grooves extend beyond tire equatorial tire plane, are connected to each other and form zigzag central groove. Width of the central groove is not less than 2 mm and no more than 6 mm.EFFECT: improved operating performances of tire in winter conditions.19 cl, 3 dwg

Tyre // 2593660
FIELD: machine building. SUBSTANCE: invention relates to tire. Tire comprises tread with groove, formed in circumferential direction of tire, plurality of ledges placed at groove bottom, each of which passes from one of side walls, forming groove to other side wall, located opposite. Projections are located in groove with preset intervals. At that, in projection on tire tread surface each protrusion is divided into several segments. EFFECT: efficient prevention of overheating of thread during vehicle motion. 8 cl, 1 tbl, 31 dwg

Pneumatic tyre // 2593165
FIELD: motor industry. SUBSTANCE: invention relates to tyre tread pattern for wet and snow-covered road surface. Tyre includes a tread, a pair of central longitudinal main grooves extending on both sides of tread of tyre equatorial plane, central region of ground contact between central longitudinal main grooves, lamella, provided in a central area of contact with ground, V-shaped grooves, each of which has a vertex positioned in middle of central zone of contact area with ground, a first inclined portion extending from top of one edge of central region of contact with ground, and a second inclined portion extending from vertex to other edge of central region of contact with ground. Width of central region of ground contact is from 15 to 21 % of tread width. EFFECT: better performance on wet and snow-covered road surface. 5 cl, 3 dwg, 1 tbl

Pneumatic tyre // 2589192
FIELD: machine building.SUBSTANCE: invention relates to automotive industry and concerns an all-season tyre tread. Tyre comprises multiple main lengthwise grooves (21-23) extending in longitudinal direction of tyre, as well as multiple surfaces for contact with road surface (31-34), separated and formed by said main lengthwise grooves (21-23) in area of tread. Each of said surfaces for contact with road surface (31-34) has multiple recesses (312-342) respectively. At least 90 % of recesses (312) and (322) located in inner area are two-dimensional recesses and not less than 90 % of recesses (332) and (342) located in external area are three-dimensional recesses. Number N_in of lug grooves (311) in shoulder surface of contact with road surface (31) on side of inner area and number N_out of lug grooves (341) in shoulder surface of contact with road surface (34) on side of outer area relate so that N_in > N_out.EFFECT: technical result is improved stability on dry, and on snow-covered road surface.8 cl, 7 dwg

Pneumatic tyre // 2588626
FIELD: automotive industry.SUBSTANCE: invention relates to automotive industry. Contour shape of the tread is formed by a single arc under conditions in which the degree of flattening is more than 55 % and less than 70 % and the inner pressure amounts to 5 %. Tread includes main longitudinal grooves including the main shoulder longitudinal grooves, and shoulder lateral grooves located in the shoulder region of contact with the ground. Shoulder lateral grooves extend at an angle of α 80 to 90° from the axially outer edge of the tread having contact with the ground to the axially inside of the tire, and the axially inner ends located within the shoulder region of contact with the ground. Axial distance Ds between the axially inner end of the shoulder and the main circumferential groove is 3.5 to 5.5 mm, the shoulder lateral groove has a deepest portion where the groove depth is greatest, and the depth of the deepest part is 70 to 90 % of the depth shoulder circumferential main grooves.EFFECT: technical result - reduced wear in the shoulder region without deteriorating noise characteristics.7 cl, 8 dwg, 1 tbl

Tyre for vehicles wheels // 2588561
FIELD: motor industry.SUBSTANCE: invention relates to a tire for wheeled heavy-payload vehicles. Tire comprises a tread with a central annular part located on both sides of an equatorial plane, and two circular parts of shoulder zones. Central annular part is separated from every annular part of the shoulder zone by corresponding circumferential groove and has a circumferential groove. Circumferential groove has a part, which is most internal in radial direction and has an essentially parallel walls and connected to the part which is most external in radial direction, diverging in radial direction towards the tread surface.EFFECT: there are achieved improved operating characteristics during operation on both dry and wet surfaces of roads with low rolling resistance.12 cl, 11 dwg

Pneumatic tyre // 2587774
FIELD: motor industry.SUBSTANCE: invention relates to automotive industry, in particular, to non-studdable tire with tread asymmetric pattern, designed for all operating conditions. External central main longitudinal groove passes in zigzag pattern and consists of alternating small and large pieces. Large pieces of grooves are inclined at angle from 5 to 30° relative to tire lengthwise direction. Inner central main longitudinal groove is widest among main lengthwise grooves. Outer mid transverse grooves are widest among transverse grooves. Distance Li from straight line width of the inner central main lengthwise groove to tire equator is less than distance from central line zigzag amplitude Lo from external central main lengthwise groove to tire equator.EFFECT: technical result is improved running characteristics of tire on dry and wet road surfaces without deterioration of on snowy and icy roads.8 cl, 3 dwg, 1 tbl

Pneumatic tire // 2581978
FIELD: motor car construction.SUBSTANCE: tire tread comprises one or several main grooves extending in the tire circumference and multiple side grooves extending in the tire width between the main grooves and/or between the main groove and the tread end. Note here that the main grooves and side grooves define the number of units with at least one narrow cutout in every said unit. Every unit has the first cut out groove with one end exposed to side groove located at one side of the unit in the tire circumference and the other end terminated inside the unit. The second cut put groove has its one end exposed to the side groove arranged at the unit opposite side in the tire circumference. The opposite end terminates inside the unit. There is the connection narrow groove in width smaller than that of the first and second cut out grooves to connect the both said first and second grooves.EFFECT: better performances on ice.7 cl, 5 dwg, 1 tbl

Air tire // 2575532
FIELD: motor car construction.SUBSTANCE: tire (1 comprises the groove with multiple ledges (500) made at its bottom (50 B2). Ledges (500) extend from one groove sidewall (50B1) to opposite sidewall (50B3). Said ledges (500) are arranged in said groove at preset spacing P complying with the condition 0.75≤P≤10L, where L is the ledge length along central axis of the groove extending along the groove width centre. Distance (DL) in direction over the tread width from the end of the breaker shortest ply to the groove central line (WL) makes at least 200 mm.EFFECT: reduced tire overheating, hence longer life.9 cl, 21 dwg, 1 tbl

Pneumatic tire // 2575335
FIELD: motor car construction.SUBSTANCE: tread pattern comprises two first main lengthwise grooves, shoulder surfaces of contact with the road surface and shoulder grouser grooves, shoulder cutouts and narrow lengthwise grooves. Note here that said shoulder grouser grooves converge at the centre, in the area of the shoulder surface of contact with the road surface, without connection with the first main lengthwise grooves. Said grooves comprises the first and second areas located closer to the first main lengthwise grooves than the first areas and feature the depth smaller as compared with the first areas. Shoulder cutouts are coupled with the second areas to extend to the first main lengthwise grooves. The narrow lengthwise grooves extend in lengthwise direction of the tire and feature the width smaller than that of the shoulder grouser grooves. Said narrow lengthwise grooves intersect the second shoulder grouser grooves.EFFECT: perfected balance between wear resistance on dry road surface, stable steering on wet surface and stable steering on ice.12 cl, 10 dwg, 9 tbl

Air tire // 2573190
FIELD: motor car construction.SUBSTANCE: tire (1) has the groove on bottom (50B2) with multiple ledges (500) made thereat. Said ledges (500) extend from one sidewall (50B1) to the opposite sidewall (50B3) of the groove. Ledges (500) are located in the groove at preset intervals P complying with the condition 1.25≤P≤10L, L is the length of grooves (500) along the groove. Lateral grooves (60) made in the tread side strip extend from the groove to the tread side strip (9). Outlets (60a) are made in the tread side strip. Side grooves extend at the angle to direction twd over the tire (1) tread width on projection on the tire tread surface that makes 15-60 degrees.EFFECT: ruled out tire overheating.7 cl, 20 dwg, 1 tbl

Radial pneumatic tire for passenger vehicle and method of its operation // 2568521
FIELD: motor car construction.SUBSTANCE: tire tread surface in contact with the soil has at least one major groove (2a) extending along the tread, or the major groove (2a) and minor groove (2b) that differs from said major groove (2a. It has also the auxiliary groove, its width making ≤2 mm in the area across the tread width while the ratio of the negative area of major groove (2a) varies from 12% to 20%.EFFECT: better grip on dry and wet surface.13 cl, 10 dwg, 5 tbl

Pneumatic tire // 2566514
FIELD: motor car construction.SUBSTANCE: shoulder contact section (13S) has the first crosswise groove (14A) that communicates at one end part with the major groove (12) on the side most remote from the centre in the tire width direction and does not communicate with the opposite end part with the tread end (E). Its second crosswise groove (14B) does not communicate at one end part with the major groove (12) on the side most remote from the centre in the tire width direction and communicates with the opposite end part with the tread end (E). The first crosswise groove (14A) and second crosswise groove (14B) alternate in the tire circumference so that their end parts have permissible overlap (S) in the tire width direction. Besides, knife cut (15) is composed between the other end part of the first crosswise groove (14A) and tread end (E).EFFECT: noiseless work, better stability owing to better water removal.11 cl, 5 dwg, 1 tbl

Pneumatic tire // 2565437
FIELD: transport.SUBSTANCE: invention relates to high-speed pneumatic tire. This tire comprises tread with asymmetric pattern including the following elements. Two lengthwise grooves of the crown arranged on each side of tire equator to define the crown rib there between. Central narrow lengthwise groove of the crown and cooling cutouts at the crown rib outer side. Cooling cutouts are arranged at the crown rib inner side. Cooling bores are located on the surface of contact between soil and crown outer surface and cooling bores located at the surface of contact between soil and crown inner side.EFFECT: longer service life at high speed, better stability and wear resistance.8 cl, 7 dwg, 1 tbl

Inflated tyre // 2564462
FIELD: motor vehicle industry.SUBSTANCE: tyre contains tread surface having circle groove going towards along the tyre circle, and multiple grooves in width direction, opened in the circle groove. The grooves in the width direction have the groove width exceeding width of the groove of the circle groove at least at the area opened in the circle groove, and grooves in direction of width go in the direction having inclination relatively to the direction along the tyre circle, where the cavity is made on the wall surface of the groove of the circle groove against the groove in the direction of width.EFFECT: reduced temperature of crown zone of the tyre tread.7 cl, 9 dwg

Pneumatic tyre // 2564064
FIELD: automotive industry.SUBSTANCE: pneumatic tire contains circumferential main and cross grooves and blocks. The blocks comprise a bent groove passing along a tire circumference, separating the block into two parts along the tire width, and arranged so that the directions of bend of bent grooves alternately change to opposite ones. In the first version blocks comprise the bent groove. In the second version the main grooves which pass along the tire circumference, one row which is the central contact section and two contact sections of the left and right arm zones. Cross grooves are inclined cross grooves which pass at the pre-set inclination angle with reference to the direction along the tire circumference. The central contact section is separated into a set of blocks due to crossing of the cross groove.EFFECT: improvement of operational characteristics for snow-covered and wet road movement.22 cl, 6 dwg

Pneumatic tire // 2562260
FIELD: transport.SUBSTANCE: invention relates to motor tire tread pattern. Tread is provided with: a pair of longitudinal grooves (3) of crown passing on both sides of centre line (C) of tire, crown rib (5) between longitudinal grooves (3) of crown, a pair of shoulder longitudinal grooves (4) passing between crown longitudinal grooves (3) and edges (2t) of tread contact with ground, middle ribs (6) between crown longitudinal grooves (3) and shoulder longitudinal grooves (4), and shoulder ribs (7) between shoulder longitudinal grooves (4) and edges (2t) of tread contact with ground. Volume fraction Rc of grooves which represents total volume of grooves and lamellas to crown rib (5) volume ratio, volume fraction Rm of grooves relative to middle ribs (6) and volume fraction Rs of grooves relative to shoulder ribs (7) satisfy relation Rc ≤ Rm ≤ Rs.EFFECT: better driving stability due to increased cornering power in the whole range of loads including low loads range.10 cl, 6 dwg, 1 tbl

Inflated tyre // 2561661
FIELD: motor vehicle industry.SUBSTANCE: treat profile includes first grooves of grouser, that go from the appropriate ends on the external side in the transverse direction of tyre of the first inclined grooves in the first direction in the tyre longitudinal direction, and at angle in the direction of the external side in the tyre transverse direction up to edges of the area of engagement with the pavement, and have angle made with the tyre transverse direction, that is below the angle created with the tyre transverse direction by the first inclined grooves. The second inclined grooves pass from the appropriate ends on the external side in the tyre transverse direction of the first inclined grooves in the first direction in the tyre longitudinal direction, and at angle in the direction of the internal side in the tyre transverse direction. The third inclined grooves pass from the appropriate intermediate points on the first grooves of the grouser in the first direction in the tyre longitudinal direction, and at angle to in the direction of the external side in the tyre transverse direction, and have angle made with the tyre transverse direction exceeding the angle made with the tyre transverse direction by the first grooves of the grouser. Each third inclined groove closes not reaching the other first groove of the grouse, located adjacent with the first groove of the grouser in the first direction.EFFECT: improved operation parameters of the tyre on ice, snow and wet pavement.18 cl, 6 dwg, 3 tbl

Tyre // 2561656
FIELD: motor vehicle industry.SUBSTANCE: tyre has section of the tread for contact with the road surface. In the tread there is section of the side groove in the direction crossing with the circumferential direction of the tyre, and contact section divided by the section of the side groove. The contact section includes: surface of contact with soil to contact with the road surface; side surface made in the direction of the tread width on the external side of the contact section; the side groove surface creating the groove wall of the side groove section, made in the circumferential direction of the tyre at one end of the contact section; and narrowing surface that crosses the surface of contact with soil, side surface and the side groove surface at corner section, formed by the surface of contact with soil, side surface and side groove surface.EFFECT: increased efficiency of heat radiation without losses of the treat strength and its wear resistance.6 cl, 14 dwg, 1 tbl

Tire tread with better grip of snow or dry road pavement // 2561179
FIELD: transport.SUBSTANCE: tire tread has one or several reiterating spacings. Note here that every reiterating spacing comprises separate spacing with tread units including grooves formed in said tread. Note here that every spacing features length of 15-35 mm. Said treads can have weighted mean density of grooves Dw of 10 mm-1 to 37 mm-1. Tread units are also made of rubber mix based on diene elastomer, plasticizing system and cross-linking system. Said rubber mix features vitrification point of -40°C to -15°C. Note also that Coulomb modulus G* measured at 60°C at 0.5-1.1 MPa.EFFECT: better tread braking on snowy and dry pavement.20 cl, 4 dwg, 3 tbl

Tire with tread having improved adhesion with snow and dry pavement // 2561149
FIELD: motor vehicle industry.SUBSTANCE: tire has tread with maximum density of narrow slots in the contact patch, minimum density for side grooves in the contact patch, and minimum longitudinal ratio of contact surface. Under definite options of the implementation the length of steps or repeating blocks of the tread geometry along the circular direction of the tire is within range of the definite span, and depth of the tread pattern is below the specified value.EFFECT: improved characteristics of the tire adhesion with snow and dry pavement.15 cl, 22 dwg, 7 tbl

Pneumatic tire // 2557126
FIELD: transport.SUBSTANCE: tire with preset sense of rotation comprises treads. Parts of said treads are composed by multiple inclined grooves extending from both edges of the tread to its equatorial line and inclined to direction of rotation relative to tread width direction. Tread branched grooves, each extending from the part of inclined groove located some 1/4 of tread width from tread edge and directed inward over tread width. It is directed to tire equatorial line in tire circumference opposite the direction if tire circumference whereat inclined grooves are located relative to tread width to terminate in tread block.EFFECT: higher resistance to abrasive wear.4 cl, 2 dwg, 1 tbl

High-capacity tire // 2551699
FIELD: transport.SUBSTANCE: invention relates to vehicle tire tread design. High-capacity tire includes tread provided with four or five longitudinal grooves so that in axial direction they divide the tread into five or six ribs. Five or six ribs include a pair of ribs of shoulder area each one of which is provided with shoulder lateral groove, and three or four ribs of crown area each one of which is provided with lateral grooves of crown. Lateral grooves of crown pass throughout the crown area rib width. Shoulder lateral grooves pass axially outwards from axially-inner edge of shoulder area rib so that they end at axial distance of 78 to 88% of shoulder area rib axial width from the mentioned axially-inner edge. Depth of longitudinal grooves is 15 to 20 mm. Depth of lateral grooves of crown is 9 to 30% of longitudinal grooves depth. Depth of shoulder lateral grooves is 9 to 25% of longitudinal grooves depth. Tread width TW is 0.78 to 0.87 of tire cross-section width SW.EFFECT: improved resistance to shoulder tire wear, as well as improved running characteristics of tire on wt road surface.6 cl, 6 dwg, 1 tbl

Pneumatic tire // 2550237
FIELD: transport.SUBSTANCE: invention relates to automotive winter tire tread design. In the tread part, multiple longitudinal and lateral grooves are made. They determine boundaries of multiple rows of blocks. Each of the blocks includes sipes. Length of each of the blocks included into the first row of blocks and the second row of blocks is at least 1.5 times and not more than 2.5 times greater than length of each of the blocks included into the third row of blocks. Width of each of the blocks included into the second row of blocks is greater than width of each of the blocks included into the first row of blocks. Lateral grooves determining boarders of blocks in the first row of blocks and lateral grooves determining boarders of blocks in the second row of blocks are located with shift relative to each other in direction along tire circumference for a distance of at least 0.2 and at most 0.8 of the length of each of the blocks in the first row of blocks. Lateral grooves determining boarders of blocks in the second row of blocks and lateral grooves determining boarders of blocks in the third row of blocks are located so that they communicate with each other being inclined in the same direction relative to tire width direction.EFFECT: improved operational performance during movement over ice and snow with good balance.11 cl, 8 dwg, 1 tbl

Air tire with radial cord // 2550059
FIELD: transport.SUBSTANCE: proposed tire comprises directed patter defining the direction of tire rotation and at least one crosswise groove on tread surface extending from tread edge and inward in direction over tread width beyond central point P of tread width half. Here this tread edge is located whereat groove wall of expulsion side has of at least one crosswise groove has the ledge. The latter extends towards inlet side groove wall relative to point Q. The latter represents the mid distance, over tread width, from tread edge to point P of tread width half. Note here that said ledge extends from position between points P and Q and inward beyond point Q in direction over the tread width.EFFECT: higher resistance to abrasive wear.4 cl, 6 dwg, 1 tbl

Pneumatic tire // 2548308
FIELD: transport.SUBSTANCE: invention relates to tire tread. Pneumatic tire (10) tread (12) comprises two peripheral main grooves (14) made nearby the tire width centre some 1/3 of width W of the surface of contact with soil from edge (7) of said surface and oriented towards tire circumference. Central tread (16) arranged between two peripheral main grooves (14). Side grooves (18) are made on sides over tore width outside both peripheral main grooves (14). Main crosswise grooves (20) are arranged in side treads (18) extending from peripheral main grooves (14) to edges T of the surface of contact with soil. Side treads (18) include no main grooves to connect adjacent main crosswise grooves (20) with each other.EFFECT: higher adhesion, better stability of control and acceleration characteristics on ice.3 cl, 2 dwg, 2 tbl

Tire // 2533641
FIELD: transport.SUBSTANCE: tread contains blocks. Block (100) includes a pair of extending sections (40) which protrude in direction of tire circumference, respectively from side surface (25A) and side surface (25B), and a pair of outwardly outstanding sections (60) which overhang outwards, respectively from this pair of extending sections (40) in direction of tire circumference. Extending section includes sharp angle (45) formed by intersecting sloping groove and ring groove. Extending section (40A) lays at the side of one edge in direction of tread width, and extending section (40B) lays at the side of the other edge in direction of tread width. Top surface relating to outwardly outstanding section (60) in radial tire direction is inclined relative to radial direction of tire.EFFECT: better tire performance on snow.4 cl, 7 dwg, 1 tbl

Auto tire // 2531534
FIELD: transport.SUBSTANCE: invention relates to automotive industry, namely, to tread pattern. Tire 1 comprises: circular groove 12 made in crown zone, tread runner 22 divided by said groove 12 and crosswise grooves made at tread runner. Crosswise grooves comprises first crosswise groove 32 dividing the tread runner into several blocks and second crosswise groove 51 dividing the block 42 separated by first crosswise groove into block first and second parts 61, 62. Circular groove part depth in contact with second block is smaller than that of circular groove in contact with first block.EFFECT: higher stiffness, better tread drainage.5 cl, 5 dwg, 1 tbl

Tire (versions) // 2529925
FIELD: transport.SUBSTANCE: invention relates to pneumatic tire tread design, predominantly for agricultural vehicles. Tire includes carcass and tread running along circumference of tire carcass, where the mentioned tread contains multiple tread elements located in tread pattern. Tread elements in the mentioned array of tread elements are located with one of two pitches having different lengths and in noise-reducing sequence of pitches.EFFECT: reduced noise.36 cl, 5 dwg

Pneumatic tire // 2525187
FIELD: transport.SUBSTANCE: invention relates to automotive industry, namely, to studless tire tread pattern. Tire (1) tread (2) has several (5R) crown blocks (5b) separated by crosswise crown grooves (8), two rows (6R) of mid blocks (6b) separated by mid crosswise grooves (9) and two rows (7R) of shoulder blocks (7b) separated by shoulder crosswise groves (10). Every crown crosswise groove (8) is level in lengthwise direction with one crosswise crown mid groove (9) so that crosswise groove (8) is located in area (Mc) of the mid crosswise groove confined by 1st and 2nd crosswise straight lines (Za and Zb). The latter extend through 1st and 2nd extreme ends (9a, 9b) of the mid crosswise groove (9), respectively. Longitudinal length of crosswise mid groove are (Mc) makes at least 25% but not over 50% of pitch length (P) confined by 1st extreme ends (9a, 9b). Are (Mc) of mid crosswise groove does not overlap anyone shoulder crosswise groove (10).EFFECT: better bite.8 cl, 7 dwg, 1 tbl

Pneumatic tire // 2524522
FIELD: transport.SUBSTANCE: invention relates to vehicle tread pattern. Pneumatic tire (1) contains tread (2) which includes projections (23) formed by longitudinal grooves made in longitudinal direction of tire and by transversal grooves (24) crossing longitudinal grooves. The transversal grooves (24) in longitudinal direction of tire form multiple pitches (P1, P2 and P3) of tread pattern. In this structure, in the tread (2) shoulder, as tread pattern pitch decreases the volume ratio of transversal grooves (24) in the volume of portion corresponding to tread pattern pitch increases, and in the central zone of tread (2), as tread pattern pitch decreases the volume ratio of transversal grooves in the volume of portion corresponding to tread pattern pitch decreases.EFFECT: higher stability of vehicle driving while keeping tread uniformity.4 cl, 5 dwg

Pneumatic tire // 2523539
FIELD: transport.SUBSTANCE: pneumatic tire 1 having excellent snow-running characteristics while keeping control stability and resistance to uneven wear, including tread 2 containing a pair of longitudinal crown grooves running continuously in longitudinal direction of tire at both sides of tire equator C and having edges, where one edge 3m runs in zigzag fashion, so that L-shaped sections 3s of groove edge are continuously interconnected in tire longitudinal direction, and the other edge 3n runs in corrugated manner so that arc-shaped sections of groove edge 3o having arc-shaped convexity towards groove centre are continuously interconnected in tire longitudinal direction where each section 3s of L-shaped groove edge includes long portion 3c inclined at angle of 1 to 20° relative to longitudinal direction, and short portion 3t with longitudinal length less than this value for long portion 3c and inclined in direction opposite to direction of the mentioned long portion 3c relative to longitudinal direction.EFFECT: improved characteristics.17 cl, 1 tbl, 10 dwg
 
2550933.
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