Tyre

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

 



 

Same patents:

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 // 2550631

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. High-capacity tire includes tread provided with central longitudinal groove, crown longitudinal grooves at each side of this groove and crown lateral grooves passing between them thus crating blocks of crown. Crown block is additionally divided in longitudinal direction into two parts of the block by narrow groove of crown. Lateral groove of crown is provided at its bottom with web extending from bottom and connecting two crown blocks being adjacent in longitudinal direction. Lateral grooves of crown are inclined at an angle α of 10 to 30 degrees relative to axial direction of tire. The central longitudinal groove and axially-inner part of lateral crown groove which is located at axially inner side of web are of least depth than longitudinal groove of crown.

EFFECT: better tread self-cleaning of stones without creation of cracks at the bottom of groove and without performance degradation on wet road surface.

8 cl, 4 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

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

FIELD: transport.

SUBSTANCE: invention relates to the automotive industry. A tyre frame being a tyre base, and a vulcanised tread which is glued to the tyre frame, are formed separately and connected to each other, forming the tyre. The tread, in its cross (axial) direction, has a set of grooves passing in its longitudinal (circumferential) direction. The tread thickness in the cross section gradually decreases from the equator to the edge from the side of the equator of the extreme external groove located in axial and extreme external area and is gradually increased from the external edge of the extreme external groove outside in the axial direction.

EFFECT: possibility of the regulation of uneven wear of the tread.

6 cl, 7 dwg

Pneumatic tire // 2537987

FIELD: transport.

SUBSTANCE: invention relates to motor tire tread pattern. Tire tread is provided with blocks each one of which has surface of block wall facing transversal groove tilted at an angle (Θ) of 5 to 40 degrees relative to axial tire direction and thus forming acute-angled edge and obtuse-angled edge of block. Block wall surface between acute-angled edge and obtuse-angled edge is provided with at least two slots of 0.3 to 2.0 mm in width. Distance P2 measured from acute-angled edge to one of at least two mentioned slots the nearest to acute-angled edge is greater than distance P1 measured from mentioned obtuse-angled edge to one of at least two mentioned slots the nearest to obtuse-angled edge. Each distance is measured along radially outer edge of block wall surface to slot centre across width.

EFFECT: tire noise reduction.

10 cl, 5 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

FIELD: transport.

SUBSTANCE: invention relates to tread of tires to be used in winter. Winter tire (1) has tread (2) with relied patter composed of multiple lengthwise grooves (4) and crosswise grooves (5) isolating the blocks (6) extending radially from base surface (3) of tread (2) to make at least one lengthwise row. Every block (6) has two lengthwise lateral surfaces (7) that make the boundaries of two appropriate lengthwise grooves (4) and two crosswise side surfaces (8) that make the boundaries of two appropriate crosswise grooves (5). At least one of units (6) has lateral channels (9) each being formed at side surface (7, 8) of appropriate block (6) to extend from base surface (3) of tread (2) to top surface (10) of block (6) to prevent radial extension of trapped snow from inner section of lateral channel (9).

EFFECT: perfected grip and snow-clad roads.

19 cl, 16 dwg

FIELD: transport.

SUBSTANCE: invention relates to pneumatic tire for vehicles, in particular to be used in winter conditions of driving. Tread is provided with multiple narrow sipes (4) which pass in transversal direction of tread in parallel to each other. Mutually opposite walls (5) of sipes contain mutually matching projections (6, 7) and recesses (16, 17). The projections (6, 7) are rounded raised areas. The projections (6) are located in separate areas in radially outer region of one sipe wall (5). In this structure, each of mentioned projections (6) has one flat side forming supporting surface (6a) oriented in radial direction and essentially perpendicular to sipe wall (5). The projections (7) are located in separate areas in radially inner region of one sipe wall (5). In this structure, each of mentioned projections (7) has one flat side forming supporting surface (7a) passing essentially in parallel to upper surface of positive profile.

EFFECT: better tire adhesion to ice-covered road surface while providing uniform wear of tire tread.

10 cl, 3 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 // 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

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

FIELD: transport.

SUBSTANCE: invention relates to the automotive industry. A tyre frame being a tyre base, and a vulcanised tread which is glued to the tyre frame, are formed separately and connected to each other, forming the tyre. The tread, in its cross (axial) direction, has a set of grooves passing in its longitudinal (circumferential) direction. The tread thickness in the cross section gradually decreases from the equator to the edge from the side of the equator of the extreme external groove located in axial and extreme external area and is gradually increased from the external edge of the extreme external groove outside in the axial direction.

EFFECT: possibility of the regulation of uneven wear of the tread.

6 cl, 7 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

Automotive tire // 2521033

FIELD: transport.

SUBSTANCE: invention relates to automotive winter tire tread design. Tire (1) has tread (2) containing central part (L1) covering from two sides the equatorial plane (7), and two shoulder parts. The central part (L1) is separated from shoulder parts (L2, L3) of tread by two first circumferential grooves (3, 6). At least two second circumferential grooves (4, 5) are located in the central part (L1). The second circumferential grooves (4, 5) determine margins of the central circumferential bar (10) containing multiple sipes (20) located in parallel to each other and at certain distance from each other. The second circumferential grooves (4, 5) have a mid line running as peak-to-valley scallops throughout tire length in direction along circumference. The mid lines with peak-to-valley scallops are mainly matching in phase with each other throughout tire length (1) in direction along circumference.

EFFECT: better operational properties when moving both over snowy and dry and wet road surfaces.

20 cl, 4 dwg, 1 tbl

Pneumatic tire // 2520265

FIELD: machine building.

SUBSTANCE: proposed tire comprises tread zone (A) located from vehicle inner side and tread zone (B) located on vehicle outer side. There are multiple slot-like drain grooves (32A, 32B) extending over tire width and formed in every block (31A, 31B). The number of blocks (31A) in said zone (A) is larger than that of blocks (31B) in said zone (B). Note here that slot-like drain grooves (32B) in blocks (31B) of zone (B) are configured to extend linearly along their depth. Note here that slot-like drain grooves (32A) in blocks (31A) of zone (A) are configured to extend in wavy manner along their depth.

EFFECT: better road grip on dry road and snow.

7 cl, 4 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive industry, namely, to tread pattern. Tire features tread asymmetric patter wherein ratio of actual area of contact to total area for zone 2o of outer side is larger than that for inner side zone 2i but with minor difference characteristic of water removal for right and left wheel tires. Said tire has tread surface 2 divided by four lengthwise grooves 3 and 4 into central area 5 of contact with soil, mid areas 6,6 of contact with soil and shoulder areas 7,7 of contact with soil. Said mid area 6o and shoulder area 7o in outer side zone 2o are divided by outer mid transverse grooves 8o and outer shoulder transverse grooves 10o into blocks 9o and blocks 11o. Mid transverse grooves 8o are inclined in opposite direction to inclination of shoulder transverse grooves 10o relative to tire axial direction while transverse grooves 8o and 10o are inclined at angle θmo of 5-45° and at angle θso over 0° and not over 40°, respectively.

EFFECT: better stability in rainy and dry weather.

8 cl, 6 dwg, 1 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

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