Tread containing sculptural elements coated with impregnated fibers compound
SUBSTANCE: tread for a pneumatic tyre comprises a plurality of sculptural elements, including the lateral sides and the contact surface intended for performing the contact with the road during the movement of the pneumatic tyre provided with said tread. At least one edge forms the contact boundary of the contact surface with the road. A plurality of cutouts in the form of a track and / or a cut also is represented, wherein said cutouts are bounded by the lateral sides disposed opposite one another. Each sculpture element is formed by at least one first rubber mixture called basic mixture. In the sectional view of a plane normal to the rotation axis of said pneumatic tyre and intersecting at least one contact surface sculptured element, wherein one of the cutouts adjacent to said contact surface is coated, at least partially, with the coating layer. The coating layer comprises a plurality of woven or non-woven fibers that are long fibers with the length greater than 50 mm.
EFFECT: improved characteristics of pneumatic tyres on wet surfaces.
32 cl, 9 dwg, 3 tbl
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.
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: 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: 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
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
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
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
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
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
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
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
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
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
SUBSTANCE: invention relates to automotive industry, particularly to inner seal design and fabrication. Said inner seal comprises dynamically cured mix of elastomer and structural resin, said inner seal being shaped.
EFFECT: better sealing properties.
22 cl, 3 dwg, 1 tbl