Abstract: A track for traction of an off-road vehicle such as a snowmobile or an all-terrain vehicle (ATV). The track comprises an inner surface, a ground-engaging outer surface, and a plurality of traction projections projecting from the ground-engaging outer surface. The track may be very thin and/or the traction projections may be very high.

Abstract: A track system for traction of a vehicle (e.g., a snowmobile, an all-terrain vehicle (ATV) etc.). The track system comprises a track and a track-engaging assembly for driving and guiding the track around the track-engaging assembly. The track system may have various features to enhance its traction, floatation, and/or other aspects of its performance, including, for example, a lightweight design, enhanced tractive effects, an enhanced heat management capability, an enhanced resistance to lateral skidding (e.g., on a side hill), an adaptive capability to adapt itself to different conditions (e.g., ground conditions, such as different types of snow, soil, etc.; and/or other conditions), an adjustability of a contact area of its track with the ground, and/or other features.

Abstract: A crawler with a wear limit indicator comprises a crawler main body, sprocket holes formed to pass through a central portion of the crawler main body at equal intervals, core metals configured to be inserted and installed in-between the sprocket holes, left lugs configured to protrude from one surface of the crawler main body and simultaneously overlap with the sprocket holes and one of the core metals, right lugs configured to protrude from the other surface of the crawler main body and simultaneously overlap a pair of adjacent core metals, and a wear limit indicator configured to protrude from front and rear surfaces of the left lugs and the right lugs and inform that a replacement time for a crawler has come when worn-out surfaces of the left lugs and the right lugs are placed on the same horizontal plane as the wear limit indicator.

Abstract: An elastic crawler includes an endless elastic body; cores that each include a core body and a pair of protrusions; lugs, on the outer circumferential side of the elastic body, each disposed so as to avoid a crawler circumferential direction area corresponding to at least a portion of the core in the crawler circumferential direction; and grooves, on the crawler inner circumferential surface, each positioned outward in the crawler width direction from the pair of protrusions in a crawler circumferential direction area corresponding to the core, each of the grooves being recessed relative to crawler inner circumferential surface portions adjacent to the groove on both sides in the crawler circumferential direction.

Abstract: A crawler web for a crawler chain of a crawler vehicle, in particular a snow vehicle, is proposed, wherein the crawler web comprises a base rail which is attachable releasably to the crawler chain, a track bracket which is provided for guiding the crawler chain on a chassis of the crawler vehicle, and a tread element which is provided for arrangement on a ground contact side of the crawler chain and for engagement in an underlying surface. According to the invention, the track bracket and the tread element are formed integrally, wherein the tread element is extended over a large part of a length in the longitudinal direction of the base rail.

Abstract: A track formed of a molded rubber base sandwiching a cord layer and a single layer of ply fabric extending longitudinally of the track.

Abstract: A track formed of a molded rubber base sandwiching a cord layer and a single layer of ply fabric extending longitudinally of the track.

Abstract: A track formed of a molded rubber base sandwiching a cord layer and a single layer of ply fabric extending longitudinally of the track.

Abstract: A rubber crawler which includes: a rubber crawler body having an endless belt shape and which has a left-right pair of rolling wheel passing surfaces on the inner circumferential surface thereof; a steel cord layer in which a plurality of steel cords extending in the crawler circumference direction are embedded in the rubber crawler body so as to be arranged in the crawler width direction, and a plurality of bias reinforcing layers that are disposed on the outer circumferential side of this steel cord layer in the rubber crawler body, in which the left-right pair of rolling wheel passing surfaces are disposed on the inner circumferential surface of the rubber crawler body at positions corresponding to the respective end portions in the crawler width direction of the steel cord layer and the plurality of bias reinforcing layers; the rubber crawler further includes: a rubber layer disposed between an innermost reinforcing layer that is positioned on the innermost side of the plurality of bias reinforcing layers

Abstract: The tracks of the present invention utilize cut pieces of reinforcement which are associated with each individual drive lug. By using individual pieces the lugs can be easily built up with multiple layers of rubber and reinforcement. The cut pieces can be strategically shaped and placed to optimize their effect to realize improved performance and durability of the track. Incorporation of such inner fabric reinforcement layers adds stiffness to the lugs and thereby increases the torque capacity of the track. Additional layers also provide increased damage resistance after the outer layers of fabric are worn away, and added layers improve wear resistance on the sides of the lugs due to undercarriage misalignment and track-to-wheel contact when the vehicle turns during normal operations.

Abstract: A method of manufacturing a rubber-metal composite, the method including a process of bringing a metal material into contact with a buffer solution having a pH of from 5 to 7.2, followed by a process of causing the metal material and rubber to adhere to each other.

Abstract: A crawler belt 20 includes first regions and second regions alternately arranged in a circumferential direction thereof. The first region has at least one first tread lug 25 and the second region has at least one second tread lug 26. The first tread lug 25 has high flexural rigidity and is not easily bent and the second tread lug 26 has low flexural rigidity and is easily bent. The first tread lug 25 catches on an upper end of a high step or bump S with the second tread lug 26 in a bent condition, thus allowing the crawler unit to move over the step or bump.

Abstract: A track formed of a molded rubber base sandwiching a cord layer and a single layer of ply fabric extending longitudinally of the track.

Abstract: A track formed of a molded rubber base sandwiching a cord layer and a single layer of ply fabric extending longitudinally of the track.

Abstract: A rubber crawler track having less wear at its left and right end portions to improve its durability. The rubber crawler track has steel cords 12 embedded in the longitudinal direction of the track and has a rubber lug 15 formed on the outer periphery side thereof. The rubber crawler track is constructed from three kinds of rubbers that are an inner peripheral side rubber (a), an outer peripheral side rubber (b), and an edge rubber (c) at the left and right of the rubber crawler track. The edge rubber (c) is a rubber layer having the highest hardness degree. The ground contact side, inner peripheral side and ends in the width direction have different kinds of rubber, and the edge rubber (c) having excellent wear resistance with a hardness degree of 72 (JIS A) or greater is placed in particular at the machine body side end of the rubber crawler track because of the significant wear at this location.

Abstract: The tracks of the present invention utilize cut pieces of reinforcement which are associated with each individual drive lug. By using individual pieces the lugs can be easily built up with multiple layers of rubber and reinforcement. The cut pieces can be strategically shaped and placed to optimize their effect to realize improved performance and durability of the track. Incorporation of such inner fabric reinforcement layers adds stiffness to the lugs and thereby increases the torque capacity of the track. Additional layers also provide increased damage resistance after the outer layers of fabric are worn away, and added layers improve wear resistance on the sides of the lugs due to undercarriage misalignment and track-to-wheel contact when the vehicle turns during normal operations.

Abstract: A ground engaging track for a vehicle has a continuous loop or endless belt body portion having an exterior surface to engage the ground and an interior surface including driven members. The driven members are configured to be engaged by a drive sprocket to rotate the body portion to move the vehicle.

Abstract: A track formed of a molded rubber base sandwiching a cord layer, followed by a cross bar and a single layer of ply fabric extending longitudinally of the track.

Abstract: A structure of a coreless crawler comprising: main cords that are embedded in rows in a longitudinal direction of the crawler, two layers of bias cords (a, b) that are embedded at an outer peripheral side of the main cords, bias cords (c) that are laid perpendicular to the main cords and embedded at an inner peripheral side of the main cords, rubber protrusions that are formed at constant intervals at a central portion on an inner peripheral surface of the crawler, and rubber lugs that are formed on an outer peripheral surface of the crawler, wherein the bias cords (a, b, c) and the main cords are held between treatment rubbers, and a rubber layer having lower hardness than treatment rubber is interposed between the main cords and the bias cords (c).

Abstract: A crawler belt is disclosed herein having an endless steel belt (high-tensile-strength belt) and a belt main body made of rubber and attached around an outer periphery of the steel belt. The steel belt has engagement holes arranged at even intervals in a circumferential direction thereof. The belt main body has escape recesses formed therein. A wheel has projections arranged at even intervals in a circumferential direction on an outer peripheral surface thereof. The projections are adapted to be engaged with the engagement holes of the steel belt and at the same time to enter the escape recesses of the belt main body.

Abstract: An offset track forms a pattern perpendicular to the centerline of the track which enables tracks to be formed with even or odd number of metal inserts and thus accommodate virtually any tracked vehicle. The offset track uses variations in body thickness and lug width to provide a high performance offset track with improved ride, minimum vibration and longer wear. Use of full size and mini-inserts in a single track minimizes the weight and further enhances the performance of an offset track.

Abstract: A rubber crawler having a very good straight driving property is obtained by modifying a method of embedding bias cords in a rubber crawler and neutralizing shear stresses caused by tensile load of bent portions of the crawler when the crawler is entrained about a vehicle main body. The rubber crawler is comprised of an endless rubber elastic body, a main cord row, two layers of bias cords having opposite angles of inclination, guide projections, and a lug. The bias cords of the first layer at a side near the main cord row are embedded over a region having substantially the same transverse dimension as that of the main cord row, at a fixed angle of inclination, and the bias cords of the second layer are divided into two sections, covering a region having substantially the same transverse dimension as that of the bias cords of the first layer other than a portions corresponding to the guide projections.

Abstract: A rubber crawler track (1) has an endless rubber belt-shaped rubber crawler track main body (2) formed of a rubber elastic body and core metal pieces (3) embedded in the rubber crawler track main body (2) at predetermined intervals in a circumferential direction of the rubber crawler track, wherein a high hardness intermediate rubber layer track main body (2) is provided from below at least the ground contacting surface side of an end portion in a length direction (rubber crawler track width direction) of the core metal pieces (3) toward outside the end portion in a width direction of the rubber crawler track. The rubber elastic body of the rubber crawler track main body (2) is formed in a multiply layered structure with at least two or more layers.

Abstract: The object of the present invention is to provide a coreless rubber which ensures running stability by compensating shift (deviation) in the width direction even if prepared by combination of usual rollers, and which is easily and in low cost prepared by adoption of simple structure.

Abstract: An endless flexible belt track produced from an elastomer comprises a steel cable (30) spirally wound in the thickness of the belt (12) and outer layers embedded in the thickness of the belt and formed successively from the turns (34) of the cable toward the outside, by: a first oblique layer (36) formed from wires that in turn form a first acute angle (A) to a perpendicular to the turns of the cable; a transversal layer (38) formed from wires that in turn form a right angle to the turns of the cable; and a second oblique layer (40) formed from wires that in turn form a second acute angle (B) to a perpendicular to the turns of the cable, the second acute angle (B) extending in the opposite direction to the first acute angle (A). Application to all-terrain vehicles.

Abstract: Described is an endless track for an industrial or agricultural vehicle consisting of a body formed of a rubber material having an outer surface displaying a series of ground engaging profiles longitudinally spaced along the surface and an inner surface displaying a series of longitudinally spaced drive lugs adapted to be engaged by drive sprockets on the vehicle driving assembly. The body of the endless track is fabric reinforced. One layer of fabric longitudinally extends at a distance from the inner surface of the track and has a width slightly less than the width of the drive lugs so that the fabric may extend inside the drive lugs to increase their rigidity.

Abstract: The invention relates to a two part endless vehicular rubber track comprised of a polyurethane based tread component and a rubber carcass component. In one aspect, the tread component may be comprised of a sulfur curable polyurethane or blend of sulfur curable polyurethane and sulfur curable elastomer. The invention includes a vehicle containing such track.

Abstract: The endless track is made of a reinforced rubber material with longitudinally spaced and transversely disposed ridges or lugs. It is particularly well-adapted for recreational snowmobiles having a single track. The track is characterized in that the rubber material of the central portion of the body has a hardness of between 75 and 90 duro A while the rubber material of the opposite band portions of the body has a hardness between 55 and 75 duro A. Such track facilitates the steering capabilities of a snowmobile, particularly when the snowmobile is traveling on hard and abrasive surfaces. It also improves the durability of the track.

Abstract: The invention relates to a two part endless vehicular rubber (flexible, elastomeric) track comprised of a polyurethane based tread component and a rubber carcass component. In one aspect, the tread component may be comprised of a sulfur curable polyurethane or blend of sulfur curable polyurethane and sulfur curable elastomer. The invention includes a vehicle containing such track.

Abstract: The endless track is made of a reinforced rubber material with longitudinally spaced and transversely disposed ridges or lugs. It is particularly well-adapted for recreational snowmobiles having a single track. The track is characterized in that the rubber material of the central portion of the body has a hardness of between 75 and 90 duro A while the rubber material of the opposite band portions of the body has a hardness between 55 and 75 duro A. Such track facilitates the steering capabilities of a snowmobile, particularly when the snowmobile is traveling on hard and abrasive surfaces. It also improves the durability of the track.

Abstract: Disclosed is a track belt for a snowmobile, which comprises a track belt main body, a core body arranged along a longitudinal direction of the track belt main body, reinforcing woven cloths disposed respectively in the outside and inside of the core body, cover layers for covering these reinforcing woven cloths and a plurality of horizontal rigid members placed at specified intervals in the longitudinal direction of the track belt main body and in the cross direction of the same. Overlapping of the reinforcing woven cloth is disposed respectively in the outside and inside of the horizontal rigid members. Reinforcing woven cloth is made by spirally winding a belt-like woven cloth having a specified width on a circumference of the track belt main body at a specified angle to the longitudinal direction of the track belt main body. Reinforcing woven cloths are made of tire fabric cords.

Abstract: An endless belt design for endless track assemblies for use upon off-road vehicles, the belt assembly comprising an elastomeric belt reinforced by embedded fibers, a substantial portion of these fibers being embedded at an angle to the longitudinal direction of the belt especially in the area of the cleat mounting holes, so that the holes are restrained from elongation under shearing load from the mounting bolts by longitudinal components of tension in the biased or angled fabric strands.