Sand Performance Traction in Off-Road Tires

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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Removable tread assembly for improving wheel performance on loose surfaces like sand and snow. The assembly consists of linked wide tread segments that can be attached around the wheel circumference. Each segment has a flat, wider tread plate than the wheel. The segments connect in an articulating manner using link fasteners. The segments have link structures at the ends that engage adjacent segments. Channels on the lower sides of the segments receive the wheel rim to prevent lateral sliding. The segments link together to form a wider tread around the wheel, improving traction on loose surfaces compared to the narrow stock wheels.

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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 nonwoven material for tires that prevents ingress of debris like sand into the wheel without using coil springs. The nonwoven material has convex polygonal cross sections for the metal fibers. This geometry allows close packing of the fibers without gaps that could allow debris penetration. The tightly packed fiber structure prevents sand and other debris from entering the wheel through the tire. This improves tire performance on loose surfaces like sand without compromising drivability.

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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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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 design that improves performance on challenging terrain like sand without compromising road performance. The tire has a unique skeleton structure with interlaced body and interlink springs around the rim. This prevents sand or debris from entering the wheel through gaps between coil springs. The tread is then mounted on the outside of this sealed skeleton. This prevents sand from getting inside the wheel and causing issues like burial or drive mechanism failure. The tread can still provide normal road performance without interfering with the skeleton.

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Automatic tire pressure management system for vehicles like 4WDs that automatically inflates and deflates tires to optimize performance on different surfaces. The system has closed-type air chucks on each tire that can quickly inflate and deflate the tires. A central controller connects to the chucks and manages tire pressure. It can set predetermined pressures for different driving conditions. The system automatically adjusts tire pressure when transitioning between surfaces like sand vs road. This eliminates manual inflation/deflation and ensures proper pressure for optimal traction and wear.

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High traction off-road tire design with improved grip and performance on rough terrain. The tire has a staggered block pattern on the tread that increases stability and traction. The blocks are stepped to increase ground contact. The shoulders have open pattern blocks for better performance on non-paved roads. This provides self-cleaning and improved grip in bad conditions. The blocks have high and low steps for additional grip on muddy roads.

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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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Tire design with interlinked springs to improve off-road performance by preventing sand and debris ingress into the wheel and avoiding wheel burial. The tire has a skeleton with multiple body springs attached to the rim and interlinked springs interwoven between them. This closed spring network prevents sand and debris from entering the wheel through gaps between coil springs. It also prevents wheel burial in loose terrain compared to open wheel designs with coil springs. The tread is on the outer perimeter of the skeleton.

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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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Off-road tire with improved performance on both paved and unpaved surfaces. The tire has a unique tread design with curved transverse grooves, shallow grooves, and reinforcing ribs. The curved transverse grooves provide traction on uneven surfaces like mud and gravel. The shallow grooves on the shoulder blocks have parallel sections for on-road stability and curved sections for off-road grip. The reinforcing ribs have arched sections on the outside for off-road durability and concave sections on the inside for on-road stiffness.

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Pneumatic tire with improved traction on soft surfaces like snow and sand. The tire has stepped protrusions on the sidewall. The protrusions have a base surface and a top surface connected by a step. The protrusion height is greater than the base. This provides extra grip on soft surfaces compared to a smooth sidewall. The stepped shape prevents the protrusions from getting buried in soft terrain like snow.

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A pneumatic tire that can achieve excellent running performance on muddy ground, snowy roads, sandy ground, or the like. The tire includes a tread pattern primarily having a lug groove with a high amount of edge components, and with a large groove area or groove depth is generally used for a pneumatic tire used in traveling on muddy ground, snowy roads, sandy ground, or the like.

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Pneumatic tire with improved traction on various road surfaces by optimizing the sidewall block shapes. The tire has sidewall blocks with features like recesses and convexities that enhance grip when encountering sand, mud, rocks, or other challenging terrains. The sidewall blocks have unique angles and shapes that allow them to better engage and shear the terrain for traction. This balanced traction performance is achieved by having recessed sidewall blocks for shearing through flowing materials like sand and mud, and convex sidewall blocks with longer edges for catching and gripping surfaces like rocks.

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Utility vehicle tire having a tread that has a much lower susceptibility to cracks in the region of the channel bases of circumferential channels and in the region of shoulder flanks and in addition ensures good gripping properties, in particular on wet, sandy, gravelly, muddy and/or snow-covered ground. The tire is provided with two circumferential channels, which are formed to a profile depth and separate central profile positives and shoulder-side profile positives from one another, the circumferential channels having channel flanks toward the central profile positives and the shoulder-side profile positives having shoulder flanks running toward the side wall.

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Tire for sand traction that minimizes the wear, traction, stability and/or handling on other surfaces. The tire includes a tread formed with structural features for travel on sand and other surfaces. The tread includes an inboard shoulder and an outboard shoulder.

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Tire with superior driving performance on muddy ground, snowy roads, sandy land, and the like. The tire includes a tread portion extending in a tire circumferential direction to form an annular shape, a pair of sidewall portions disposed on both sides of the tread portion, a pair of bead portions disposed inward in a tire radial direction of the sidewall portions, main grooves disposed in shoulder regions of the tread portion and extending in the tire circumferential direction; a plurality of lug grooves extending outward in a tire width direction from the main grooves and reaching the sidewall portions; and a plurality of blocks partitioned by the main grooves and the lug grooves.

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Off-road vehicle tire with improved traction and mud clearing capabilities. The tire has a tread with left, central, and right ribs separated by a main groove. Shoulders are located between the ribs on the left and right sides. Additional side grooves are provided between the shoulder and rib. This configuration allows better grip, traction, and mud release compared to traditional tire designs. The multiple main and side grooves enhance drainage and prevent getting stuck in soft terrain.

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Dual-purpose off-road motorcycle tire with optimized tread pattern for better traction and sand removal on both sand and mud roads. The tire has a unique tread design with specific features in the central and middle blocks. The central block has sawtooth serrations on the bottom surface to dig into sand. The middle block has a concave-convex shape with a concave part on the outer side. This combination forms a convex arc that pokes into sand while the concave section improves edge grip. The shoulder blocks are alternated between the central and middle blocks. The serration width, tooth height, and concave-convex ratios are optimized for traction and sand shedding on both sand and mud.

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Mud and dirt performance for a pneumatic tire that can be used on soft rough terrain such as sand, mud and the like, and on hard dried mud terrain. The tire includes a plurality of central blocks and shoulder blocks that are arranged in a circumferential direction of the tire.

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Tire for a vehicle that enhances its traction and floatation on soft, slippery and/or irregular grounds (e.g., soil, mud, sand, ice, snow, etc.) on which they operate. The tire includes elastomeric material, reinforcing within the elastomeric material, and a sensor configured to sense deterioration of a component of the track system.

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Tire with a tread design optimized for sand traction while also providing better wear, traction, stability, and handling on other surfaces compared to prior sand tires. The tire has a tread with closely-spaced lugs that extend across a central recess between the inboard and outboard shoulders. This recess wall is located radially inward between the shoulders. This tread configuration allows the tire to roll effectively on sand and also prevents sinking. The lugs provide traction in sand while the recess prevents sinking. The closely-spaced lugs also improve wear, traction, stability, and handling on other surfaces compared to widely-spaced lugs.

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Pneumatic tire with improved traction on unpaved roads like mud, snow, sand, and rocks. The tire has center and shoulder blocks with notches and walls that optimize traction and mud shedding. The center blocks have notches with angled walls that extend beyond the tire equator to provide long edge components. The shoulder blocks have walls that oppose the center block notches. The angles of the center block walls are controlled to balance edge effects and mud shedding. The shoulder block walls are angled relative to the tire circumferential and lateral directions to optimize traction and prevent slipping.

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Pneumatic tire with improved traction on mud, snow, sand, etc. The tire has blocks in the shoulder region with recessed portions in the outer side region. The blocks extend further radially outward than the tread edge. The recessed portions have closed shapes. The ratio of recessed area to side region area is 0.2-0.6. This configuration allows wide block contact and compaction of material like mud while maintaining rigidity. The recessed portions prevent excessive block deformation. The narrow width bent lug groove design enhances mud discharge.

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A pneumatic tire design for large, wide base tires used on construction vehicles like earth movers and rigid haul dump trucks, aimed at improving tire life and reducing heat buildup in severe off-road conditions. The tire has a unique belt structure with cord angles between 7° and 36° that reduces heat generation and extends tire life compared to conventional radially-oriented belts. This allows the tire to better withstand dynamic loads and bouncing in harsh environments like oil sands without failing prematurely due to heat or bead failures.

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Pneumatic tire design to improve traction and mobility on muddy, snowy, and sandy surfaces. The tire has lug grooves with narrow-width bent sections at the outer ends. These sections have reduced width compared to the rest of the groove and bend in the groove direction. This prevents mud from easily escaping the grooves while still allowing adequate width for traction. The narrow-width bent sections trap mud and compact it, improving traction compared to standard straight grooves.

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Pneumatic tire with improved traction on mud, snow, sand, etc. The tire has raised protrusions extending into the lug grooves beyond the tread edges. These protrusions trap and compact mud, snow, sand, etc. in the grooves, providing better shear force and traction compared to just widening the grooves. The protrusions are optimally positioned and shaped to balance traction and mud release. The protrusions are also connected to the blocks, preventing separation and isolation.

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Off-road tire with improved traction, mud clearing, and handling compared to conventional tires. The tire has a unique tread pattern with an S-shaped longitudinal drainage channel that connects multiple longitudinal grooves. This provides better mud clearing and traction compared to conventional tires with simpler drainage. The S-shape also allows for smoother transition between the crown and shoulder for better handling.

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Tire for vehicle in sandy land that can improve the turning manipulation performance in sandy land without affecting the straight-running traction performance. The tire includes a tread comprising a plurality of primary blocks extending in a tire circumferential direction disposed symmetrically on the tread with respect to a center line of the tread, and a plurality of secondary block arrays arranged on areas between any two adjacent primary blocks.

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Tire traction device for vehicles that can be easily installed and removed to improve tire grip in poor road conditions, sand, or emergencies. The device attaches transversely across the tire instead of circumferentially around it. It consists of a primary strap wrapping around the tire, a traction plate with channels and protrusions, and a rubber base with channels and recesses. The strap goes through the plate channels and into the base recesses. This allows quick installation/removal compared to circular chains. The protrusions on the plate provide additional traction.

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A wheel design for sandy terrain that reduces digging in when loaded. The wheel has an outer tire with spokes that can flatten under load to spread the weight over a larger area and prevent digging. The spokes move to create a flat, track-like section of the tire when loaded, and revert to circular when unloaded. The spokes alternate directions to balance forces.

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An anti-slip device for tires that increases grip on low traction surfaces like snow, ice, sand and gravel without the need for winter tires or chains. The device has a plurality of composite spokes with claws that attach to the tire tread. The spokes are linked together by an elastic belt. Actuators move the spokes radially between a retracted rest position and an extended work position. The spokes rotate onto the tire when extended. This provides full tread contact for better traction. The elastic belt helps rotation. The spokes have pins that engage a spiral guide to move radially.

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Pneumatic tire for off-road vehicles that provides improved steering, pulling, and pushing performance in sand. The tire has a tread with annular ribs that are laterally offset around the circumference. In addition, converging paddle pairs surround the tire periphery. This configuration allows the tire to steer using the inner annular rib, pull using the outer annular rib, and push using the converging paddle pairs. The annular ribs provide lateral traction, the outer rib face pushes sand, and the converging paddles displace sand for propulsion.

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An off-road tire design that improves grip, reduces stone trapping, and prevents tread wear on rough terrain. The tire has a unique tread pattern with alternating beams and smooth sections. The beams have center lines with side bumps on either side. Grooves are formed between the center line and side bumps. The beams connect to shoulder bumps. The smooth sections are between beams. The beams and smooth sections are prominent in the tread. This tread configuration provides better traction, prevents stone trapping, and prevents excessive wear compared to traditional tread patterns.

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Pneumatic tire for all-terrain vehicles like ATVs used in sandy terrain that improves turning performance in sand without compromising straight-line traction. The tire has a tread pattern with a unique block design. The blocks are wider and shorter than conventional ATV tires, with a reduced number of blocks covering the tread. This provides better sand penetration for turning traction. The blocks have angled leading edges and rounded trailing edges. The reduced block count and angled edges prevent sand from packing between them during turning, improving turning grip. The rounded trailing edges prevent sand wedging as the blocks exit the sand, maintaining straight-line traction.

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Cross-country tire design with improved off-road performance by combining features like wave grooves, channels, and blocks in the tread and shoulder. The tire has a center with wave grooves, outer channels flanking the wave grooves, and blocks between them forming interconnected patterns. The channels have angled edges to guide water. The shoulder has a curved transition and staggered blocks. This configuration provides better traction, stability, and mud clearing compared to conventional tires on soft, uneven, and varied terrain.

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Tire traction device that can be easily installed and removed from vehicle tires to increase grip in poor road conditions, sand, or emergencies. The device has a primary strap that goes around the tire, a traction plate with channels and rough surfaces, and a base member with channels and recesses. This allows attaching the device transversely instead of circumferentially for easier application. The device can provide sufficient traction to assist heavy vehicles like trucks without external assistance.

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Radial tire for off-road vehicles that improves traction on rough terrain like rocks by allowing the tread to better wrap around irregular surfaces. The tire has projections on the outer sidewall that deform and support the tread as it contacts uneven ground. This prevents the tread from slipping off rocks and improves wrapping for better traction. The projections are arranged in an annular region outside the maximum tire width. The inner and outer thin sidewall parts sandwiched between the maximum width and inner radius provide support for the projections.

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Tire tread design for ATVs that improves traction and steering performance on sandy terrain. The tread has two asymmetric oblong patterns with alternating non-continuous ribs. The ribs have specified gap widths and heights. This configuration allows the ATV to expel sand easily while preventing understeer or oversteer when turning on sandy roads. The rib pattern alternates between the two oblong patterns to balance traction and steering. The ribs are sized so that the gap width is less than 20% of the tread width to prevent understeer, but more than 40% to prevent oversteer.

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Off-road tire tread design with cavities and lugs for improved traction on sand. The tread has a repeating pattern of cavities with sloped bottoms that initiate contact at the leading end. This helps prevent the tire from sinking as deeply into sand. The cavities have quadrilateral sections. In between the cavities are rectangular lugs with specific size dimensions to provide traction without digging into the sand.

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Tire design for improved off-road traction on uneven terrain like rocks, boulders, sand, and snow. The tire has a compliant structure filled with particulate material like beads. The compliant tire conforms better to irregular terrain compared to rigid tires, increasing traction. The particulate filling provides a more uniform ground contact area. The compliant tire can also handle higher speeds without stiffening. The compliant tire balances between underdamped and critically damped for smooth ride and handling.

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Tire with an asymmetric tread profile that provides improved traction and stability on sandy and muddy roads. The tread has main and sub ribs extending across the tread. The near side portion of each main rib has a fixed height section with a shorter length. The far side portion has a fixed height section with a longer length. The ratio of the near side section length to the far side section length is 1.1-1.4. The near side shoulder connects to the sidewall with a shorter radius compared to the far side shoulder. The ratio of the near side shoulder radius to the far side shoulder radius is 0.5-0.9. This asymmetric tread design improves traction and stability in loose terrain by providing better grip and preventing sliding.

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Run flat tire system with improved off-road mobility and load handling capability compared to conventional run flat tires. The system has an extended lip on each side of the main body that locks the tire beads against the wheel flanges, preventing them from sliding off during off-road driving on soft terrain. The lip retains the beads against the wheel margins for better traction and mobility on sand and other soft ground. The run flat is made of multiple sections that connect around the wheel using bolts. This allows customization and repair of sections separately. The modular design simplifies installation and demounting without specialized tools.

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A tire tread pattern that improves traction, braking, and cornering performance on off-road conditions like mud, sand, gravel, and hard packed earth. The pattern has a specific orientation and configuration for left and right tires on a vehicle. The left tire has bent blocks near the center with wide grooves, while the right tire has straight blocks near the center with narrower grooves. This provides better traction/braking on rough terrain while preventing oversteer during cornering. The orientation is specified for vehicles with negative camber, like many off-road vehicles.

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Asymmetric tire tread design optimized for better traction and stability on sandy and muddy roads. The tire has a tread profile with main ribs that have asymmetric sections. The near side section has a fixed length and a shoulder, while the far side section has the same fixed length and a shoulder. The ratio of the near section length to the far section length is 1.1 to 1.4. The ratio of the near shoulder radius to the far shoulder radius is 0.5 to 0.9. This asymmetric design provides improved traction and stability on loose surfaces compared to symmetrical ribs.

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Tire tread design for ATVs that improves traction and control on sandy terrain while reducing steering effort. The tread has two asymmetric oblong patterns of alternating non-continuous ribs. The gaps between the ribs and their heights are optimized to strike a balance between sand expulsion and steering stability. This allows the ATV to better maintain traction on sand without requiring excessive body leaning. The specific rib dimensions prevent understeer (too little traction) or oversteer (too much traction) when turning on sand.

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Simulating tire performance on sand using a numerical analysis method that accurately predicts tire behavior on sandy terrain. The simulation involves creating a finite element tire model and a finite volume sand model that exhibits elastoplasticity. The tire is then rolled on the sand in a specific condition using the simulation. This allows predicting tire performance on sand without physical prototypes. The sand model accounts for the unique property of sand expanding when compressed.

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Simulating tire performance on sand using a numerical analysis method called finite elements to more accurately predict tire behavior on sand compared to conventional tire rolling simulation methods. The simulation involves modeling the tire and sandy road using finite elements and volumes, respectively, to capture the unique properties of sand like volume expansion under compression. This allows more realistic simulation of tire rolling on sand compared to conventional models that only simulate tires on asphalt or clay-like surfaces.

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