Mud-Terrain Tire Performance

Agricultural tire with improved traction on soft ground like mud and sand without sacrificing performance on hard surfaces. The tire has blocks extending from the tread onto the shoulder areas, but not on the tread itself. The blocks have cavities that compact soft material like sand or mud when the tire sinks. This creates ground resistance force for traction. The blocks don't contact hard surfaces since they're not on the tread. This allows controlled wear and maintains traction benefit over time.

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Tire design to reduce exterior noise without sacrificing mud performance. The tire has a tread with a unique land ratio distribution. The land ratio between the tread edge and an inner position 23% of the tire height is called the buttress ratio. The shoulder land ratio is larger than the crown ratio and the buttress ratio. This configuration allows lower noise while maintaining good mud traction. The tire also has specific groove widths and variations in the buttress lateral groove configuration.

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A pneumatic tire design with improved traction and appearance on rough terrain while maintaining tire uniformity and NVH performance. The tire has a tread with an inward extending buttress near the edge. The buttress has multiple protectors protruding outward. Each protector has an outward facing portion, an inward facing portion, and a circumferential portion around the tire. The angles of these portions relative to the top surface normal are different. This provides improved traction on muddy terrain due to the circumferential portion's shear force. It also improves appearance by creating an apparent height difference between the outward and inward facing portions.

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Tire with improved mud performance and rolling resistance. The tire has a tread design with a shoulder land region between the shoulder groove and edge. The shoulder land has inner and outer areas. The outer area has higher ground contact pressure than the inner area under standard loading conditions. This is achieved by connecting shoulder axial grooves to the edge and extending them in the outer area. The inner area has lower ground contact pressure. This balances mud shedding from the outer area with rolling resistance from the inner area.

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Knit body for tires with improved traction performance. The knit is made from metal fibers with convex polygonal cross sections. This unique fiber shape provides better grip on various surfaces compared to conventional round fiber shapes. The knitted tire tread using these fibers has enhanced traction on rough terrain like sand, mud, and snow. It prevents burial of the tires and prevents foreign objects from entering through the tread gaps.

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A pneumatic tire design that improves on-snow, mud, and durability performance by having a tread with a first edge and an inward extending first buttress. The buttress provides additional rigidity and support to prevent tread deformation and improve traction in snow and mud. It also helps prevent tread edge wear and separation. The sidewall extends inward from the buttress.

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Pneumatic tire with improved off-road performance. The tire has center blocks with stepped grooves that extend diagonally across the blocks. The steps create see-through sections and wider sections. This balance of openings and expansions allows the blocks to bite into soft terrain while also shedding mud. The steps are angled within certain limits for optimal performance. The tire also has center blocks extending beyond the equator to provide more edge effect. The steps in the diagonally inclined grooves provide a well-balanced combination of shear force and mud shedding. The tire's design strikes a balance between edge components in the circumferential and lateral directions for improved off-road traction.

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A pneumatic tire design with improved off-road performance by balancing traction and mud shedding. The tire has main grooves on the left and right sides that extend continuously around the circumference. There is no main groove between them in the axial direction. This configuration allows the tire to generate good traction on rough terrain while also improving mud shedding compared to having a full circumference groove between the main grooves.

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Pneumatic tire with sidewall design that prevents mud buildup and staining on the sidewall pattern. The sidewall has a raised portion with a different color than the rest of the sidewall. The tread has shoulder blocks with inner edges located inside a line parallel to the tire axis passing through the midpoint of the raised portion height. This prevents mud from the shoulder grooves reaching the raised portion top surface and staining it. The raised portion angle and protrusion height are optimized to divert mud flow.

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A pneumatic tire with a conspicuous sidewall mark that is less likely to clog with mud compared to traditional marks. The mark has an outer surface with 1-4 elongated protrusions that have a trapezoidal cross section orthogonal to the tire's traveling direction. This configuration reflects light in a complex manner to make the mark more noticeable. The trapezoidal shape prevents mud buildup compared to short pitch serrations.

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A pneumatic tire with a mark on the sidewall that has a wavy, curved or uneven face with multiple peaks. This mark design prevents mud clogging and improves legibility compared to conventional marks with serrated edges. The wavy peaks provide a conspicuous, non-clogging mark that is less likely to fill with mud while driving on muddy roads.

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Vehicle tire with adjustable buoyancy for improved mud driving performance. The tire has depressions on the outer sidewall that can be inflated to create concave arcuate shapes. When driving on mud, the depressions are inflated to provide buoyancy and traction. On normal roads, the depressions are deflated to be flat for better traction. This allows the tire to adapt its profile for optimal performance in both muddy and dry conditions.

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A pneumatic tire design with improved mud traction and cut resistance while reducing weight compared to traditional tire sidewall protectors. The tire has a tread with an inward extending buttress. Along the buttress, adjacent protectors are connected by a tie-bar that is partially formed. The tie-bar protrudes less than the neighboring protectors. This allows the sidewall to flex more in mud without getting stuck while still protecting against cuts. By reducing the tie-bar height compared to the protectors, it allows better flexing and mud release compared to fully connected sidewall protectors.

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Utility vehicle tire with improved grip and reduced cracking on unsurfaced and snowy roads. The tire has channels in the tread with V-shaped depressions at the edges. The depressions provide additional gripping edges when driving on loose surfaces like gravel, sand, mud, or snow. They also reduce cracking at the channel bases and shoulder flanks by spreading the forces and preventing stress concentrations. The depressions are spaced to have at least one in each tread pitch.

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Pneumatic tire with improved traction and cut resistance for off-road applications. The tire has a block pattern on the shoulder and side regions. The blocks have contour lines extending along the grooves that are aligned on the same line. This prevents misalignment and improves traction by efficiently discharging mud. The blocks also have tapered shapes with straight and inclined portions at the top. This avoids stress concentration and improves cut resistance. The blocks also have protrusions on the groove bottoms that extend in line. This improves stone catching and soil discharge.

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Pneumatic tire with enhanced traction and wear resistance on unpaved roads. The tire has blocks with notches in adjacent blocks facing each other across a longitudinal groove. The notches have larger width and depth on the inner side of the groove than the outer side. This allows the notches to effectively compress and displace mud between the blocks compared to just having notches on one side. This improves traction in soft terrain without degrading wear as much.

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Tire tread design for heavy-duty vehicles like construction dump trucks that improves grip on muddy terrain while reducing stone retention and wear. The tread has five rows of blocks arranged with symmetrical intermediate and lateral rows flanking a central row. The lateral rows have transverse grooves extending from the edge to the inner longitudinal cut, while the intermediate rows have a mix of transverse grooves and sipes. This allows better mud penetration and evacuation in the outer rows while preventing stone retention. The central row has sipes between inner longitudinal cuts instead of grooves. This reduces stone retention compared to grooves while maintaining inner block interconnection.

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Heavy duty tire tread design for improved grip and reduced crown temperatures in harsh off-road applications like construction vehicles. The tread has five rows of blocks separated by alternating longitudinal grooves and transverse cuts. The inner longitudinal grooves connect adjacent rows to allow longitudinal mud/water discharge. This promotes grip and reduces mud buildup. The tread also has ventilation cavities between blocks in lateral rows that open into the sidewall. This allows sidewall cooling to prevent crown damage. The design balances grip, mud discharge, and cooling to improve tire performance and durability in challenging off-road conditions.

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Pneumatic tire with improved off-road performance and damage resistance. The tire has center blocks with cuts that have angled walls extending in different directions. The cuts have larger angles than the walls of the surrounding block. This provides biting edges for off-road traction while maintaining block rigidity and preventing excessive damage. The tire also has opposing center blocks extending across the equator and inclined shoulder grooves with opposite inclinations. This allows mud and stones to flow into the cuts for better off-road grip. The blocks have shallow sipe ends for traction without rigidity loss.

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Motor vehicle tire with improved on-road and off-road performance for vehicles like pickup trucks and SUVs. The tire has a tread design with intermeshing blocks in the central portion that increase in contact as you move towards the equatorial plane. This provides better tread band compactness and grip on surfaces like snow and sand compared to widely spaced blocks. The tire also has larger circumferential grooves for better mud removal and draining. This balance of on-road and off-road features reduces noise, wear, and tear compared to traditional off-road tires.

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A tire tread design for heavy construction vehicles that improves grip and wear performance on muddy and wet terrain. The tread has outer and inner longitudinal cuts that separate raised elements. The outer cut has a radial portion that opens onto the tread surface and is at least 0.6 times its height. The inner cut has a radial portion that extends inside the outer cut and is also at least 0.6 times its height. This stepped arrangement of overlapping radial portions provides better grip and removal of mud and water compared to uniform cuts. It also allows the tread to maintain effective volume and void ratio as it wears, preventing barrel-shaping and loss of grip.

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Tire which improves the mud performance and fuel efficiency while securing cut resistance. The tire includes a tread portion having a tread surface contacting with the ground and provided with a plurality of shoulder lateral grooves and a plurality of shoulder blocks circumferentially divided by the shoulder lateral grooves.

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Tire capable of improving the mud performance without impairing noise performance. The tire includes a tread portion provided with grooves, each of the grooves includes a pair of groove walls, at least one of the groove walls is provided on a surface thereof with a pattern portion having a plurality of micro-protrusions, and the pattern portion is provided with the micro-protrusions at a density of 1 to 5 per 1 mm2 of the groove wall area.

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Stability on unpaved roads that can be enhanced by providing blocks in side regions of a tread portion located outward from shoulder regions of the tread portion in the tire lateral direction (outward from ground contact edges in the tire lateral direction) to achieve traction performance and preventing grooves from being blocked with mud or the like. The tread pattern includes two sidewall portions disposed on both sides of the tread portion, two auxiliary grooves extending in the tire circumferential direction on one side, and a center region located between the two sidewall portions in the tire lateral direction.

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Tire having excellent mud traction performance and durability. The tire includes a tread and a sidewall. The tread includes protector ribs projecting from a profile of the tire. A shape of across-section, taken along a meridian of the tire, of an end of each protector rib is convex inward in an axial direction.

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Tire that can improve appearance performance while maintaining traction performance on rough terrain such as muddy road surfaces. The tire includes a tread portion having a first tread edge, and a first buttress portion extending inwardly in a tire radial direction from the first tread edge. The first buttress portion is provided with a plurality of protectors protruding outwardly in a tire axial direction.

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Automated tire that can provide improved mud performance of the tire. The tire includes a plurality of inclined lug grooves formed on a tread surface and each having a groove depth equivalent to that of a main groove, in order to ensure appropriate traction characteristics while driving on a mud road.

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Tire capable of achieving both cut resistance and mud drainage performance. The tire includes a tread and sidewalls, and at least one of the sidewalls is provided with a plurality of side block groups protruding from a reference surface of the sidewall.

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Off-road pneumatic tire that improves running performance of a tire, desirably, a traction effect by biting mud and rocks on a road surface. The tire includes a pair of main grooves extending along a tire circumferential direction, lateral grooves which couple the pair of main grooves to each other, longitudinal grooves which couple, to each other, the lateral grooves adjacent to each other in the tire circumferential direction and a plurality of center blocks sectioned by the main grooves, the lateral grooves and the longitudinal grooves.

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Pneumatic tire that improves the driving performance and the cut resistance on unpaved roads including muddy ground. The tire includes a tread portion having a first tread edge, and a first buttress portion extending inwardly in a tire radial direction from the first tread edge. The first buttress portion is provided with a plurality of protectors protruding outwardly in a tire axial direction.

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Tyre that improves straight-traction property as well as cornering performance, while maintaining mud discharging property. The tread includes a row of crown blocks arranged on a tyre equator and a row of middle blocks arranged axially outwardly of the row of crown blocks.

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Tire that improves mud performance and maintains steering stability. The tread includes a plurality of circumferential grooves extending continuously in a tire circumferential direction; a plurality of lateral grooves connecting the circumferential grooves that are adjacent to each other in a tire axial direction; and a plurality of blocks divided by the circumferential grooves and the lateral grooves.

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Tire that can run on an uneven road surface such as muddy roads or rocky terrain. The tire includes a tread portion and a pair of sidewall portions each extending inwardly in a tire radial direction from the tread portion, wherein at least one of the pair of the sidewall portions is provided with at least one side protector protruding outwardly in a tire axial direction, and the side protector is provided with a groove, a cut-out portion connected with the groove, and a sipe connected with the groove.

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Tire that can provide mud performance and cut resistance performance of the tire in a compatible manner. The tire includes a side block arrayed at a predetermined interval in a tire circumferential direction in a buttress portion, the side blocks include a short portion and a long portion arrayed in a Y shape and a slit that defines a connection portion of the short portion and the long portion and are disposed with a top portion of the Y shape facing toward an inner side in a tire radial direction.

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Tire for a heavy-duty vehicle of civil engineering type that makes it possible to improve the longitudinal grip both in terms of traction and in terms of braking, and the transverse grip during use on tracks which may be covered with water and with mud, while ensuring a satisfactory compromise with wearing performance and performance in terms of thermal endurance. The tread comprises two circumferential grooves positioned axially each side of the equatorial plane, a longitudinal edge corners positioned axially in each of the two circumferential sides of the tread, and two longitudinal edge corners positioned in an uncut elementary tread surface portion of surface area S, and the surface area S.

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Tire capable of improving driving performance on off-road such as snowy and muddy roads. The tyre includes a tread portion including a shoulder land portion, the shoulder land portion having a tread edge and an outer surface in a tyre axial direction extending inwardly in a tyre radial direction from the tread edge, the shoulder land portion being provided with shoulder lateral grooves extending inwardly in the tyre axial direction from the tread edge to define shoulder blocks therebetween, and protrusions protruding outwardly in the tyre axial direction from the outer surface of the shoulder land portion, the protrusion including first protrusions each provided on the shoulder blocks and extending in the tyre radial direction, and second protrusions connecting inner ends in the tyre radial direction of adjacent two first protrusions in a tyre circumferential direction such that first bent portions are formed between the second protrusions and the first protrusions.

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A pneumatic tire with improved traction on sidewalls for better performance on snow, mud, and rough roads. The tire has projections called annular projections, buttress blocks, and side blocks on the sidewall. These projections provide traction by resisting shearing of snow, mud, or sand, as well as by contact friction with rocks or other obstacles. The projections on the sidewall enhance grip compared to a smooth sidewall, especially in challenging driving conditions like snowy roads or off-road terrain.

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Pneumatic tire design with improved wear resistance and traction on snow and mud. The tire has a tread with alternating shoulder blocks that have asymmetric inclined portions. The blocks adjacent to each other in the tire circumferential direction have one block with an inner inclined portion and the other block with an outer inclined portion. This alternating arrangement reduces wear differences between adjacent blocks and improves heel and toe wear resistance.

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Tire tread for a heavy construction-plant vehicle that improves grip and traction on uneven, rough and/or muddy ground such as, for example, that of mines or quarries. The tread comprises blocks, which are perforated by a contact face in the tread surface, by a bottom surface, and by lateral faces connecting the contact face to the bottom surface.

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Tire capable of continuously exerting good traction performance on rough terrain. The tire comprises a block row and a head of each side wall surface in a longitudinally directed manner to facilitate discharge of soil and mud in the lateral grooves when running on rough terrain.

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Tire pattern structure that improves the performance of grip and mud/water removal, and the handling and climbing abilities of a motor vehicle. The structure includes a tread pattern, a sidewall pattern, and a slot between the tread patterns to adjust the elasticity of the pattern block and improve the rigidity of the pattern block.

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Tire that suppresses mud clogging in the grooves. The tire includes a tread portion that is provided with grooves, each of the grooves includes a pair of groove walls, and at least one of the groove walls is provided on a surface thereof with a pattern portion having a plurality of micro-protrusions, and the pattern portion is provided with the micro-protrusions at a density of 1 to 5 per 1 mm2 of the groove wall area.

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Tire which has good driving characteristics even on paved, in particular dry ground, wherein it is sought to maintain good traction characteristics on unpaved, in particular muddy ground. The tire includes a tread that is divided by circumferential grooves, which have the provided profile depth, into block rows which run in encircling fashion in a circumferential direction and/or profile ribs which are structured in the manner of profile blocks, wherein block rows are divided by transverse grooves into blocks and, like the profile ribs structured in the manner of profile blocks, are equipped with blind grooves proceeding from the circumferential grooves.

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Off-the-road pneumatic radial tire that improves running performance during driving and braking when running off-the-road on a muddy road or the like. The tire includes a tread portion and a pair of sidewall portions each extending inward in a tire radial direction from the tread portion, and side protectors protruding outward in a tire axial direction and arranged in a tire circumferential direction.

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Tire with improved traction and cut resistance on the sidewall. The tire has a unique sidewall block design with multiple blocks arranged in a staggered pattern. The blocks have varying heights and overlap in the circumferential direction. This creates an uneven block pattern that provides better traction while also preventing cuts. The staggered blocks have gaps between them that allow mud displacement. The blocks also have angled corners for improved mud release. The staggered arrangement provides overlapping coverage to resist cuts.

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Pneumatic tire with improved protection and decoration of the sidewall buttress area when traveling on punishing roads like mud and rocks. The tire has lug grooves that compartmentalize the buttress block into outer and inner sections. An annular rib extends around the buttress block in the sidewall. To enhance protection and reduce visibility of the rib, widened portions are added to the lug grooves where they intersect the rib. This makes the annular rib more rigid and less conspicuous. It also provides better puncture resistance and prevents damage to the sidewall from protruding road objects.

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A pneumatic tire with improved traction performance and reduced rigidity variation in the sidewall. The tire has asymmetric side block designs with different outer edge shapes. The side blocks have an inner portion and an outer portion. The outer portions have annular protrusions that extend further outward compared to the inner portions. This asymmetry allows better traction on uneven terrain like mud, sand, and rocks compared to symmetric side blocks. The outer edges of the annular protrusions also provide a wider contact area for better traction. The asymmetric side blocks balance the need for improved traction with reduced variation in sidewall rigidity compared to symmetric side blocks.

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Tire of which off-road performance is improved by improving the mud ejecting performance from their junction positions. The tire comprises shoulder main grooves and shoulder axial grooves extending from the shoulder main grooves to the tread edges. The shoulders are zigzag in a trapezoidal wave form.

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Pneumatic tire that enhances driving performance on a punishing road such as a muddy ground and a rocky stretch. The tire has a concavo-convex shape that can be formed by a step corresponding to an annular rib and easily bite the mud. The tire includes a sidewall portion, a bead portion, a tread portion, and a sidewall portion.

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Tire sidewall design with improved cut resistance and mud drainage compared to conventional sidewall configurations. The tire has alternating side blocks protruding from the sidewall. The first side block has a groove extending inward toward the adjacent second side block. The second side block has a lower height and an inclined portion that extends into the groove of the first side block. This alternating block arrangement provides both cut resistance from the protruding blocks and mud drainage from the grooves and inclined surfaces.

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