Abstract: A track system for a vehicle having at least three axles is disclosed. The track system includes a frame to which sprocket, idler and support wheel assemblies are connectable, an endless track and a pivoting assembly. The pivoting assembly has a casing connectable to a second axle and at least one pivotable member that has first and second portions respectively pivotally connected to the casing and to the frame. The at least one pivotable member is pivotable between first and second positions about a longitudinally extending pivot, in response to which the first portion is displaced laterally relative to the second portion, and pivotable between third and fourth positions about a lateral pivot axis in response to which the first portion is displaced longitudinally relative to the second portion. A pivoting assembly, a pivoting assembly including a resilient assembly, and a vehicle having the track system are also disclosed.

Abstract: A tracked vehicle has a pivotable suspension. The vehicle includes a vehicle frame, a motor configured to produce power for the vehicle, and left and right track assemblies that are each connected to the frame. The assemblies each have a drive wheel configured to be driven by the motor, an endless track driven by the drive wheel, wherein the endless track has an outer side and an inner side, a bogie positioned on the inner side of the endless track, a support wheel attached to the bogie and configured to roll on the endless track, a strut connected to the frame and to the bogie, and a shock absorber connected to the frame and to the strut. The strut and the shock absorber are pivotable relative to the frame. The vehicle may have low ground pressure, consistent traction, and may be modularly configured with a floatable hull for aquatic travel.

Abstract: A track system for a work vehicle includes a first sprocket having a first diameter. The first sprocket is configured to be coupled to a drive system of the work vehicle, and the first sprocket is configured to engage a metal track and to drive the metal track in rotation. The track system also includes a second sprocket having a second diameter. The second sprocket is configured to be coupled to the drive system of the work vehicle, and the second sprocket is configured to engage a rubber track and to drive the rubber track in rotation. In addition, the first and second sprockets are configured to engage a mounting system, the mounting system is configured to interchangeably couple the first and second sprockets to the drive system, and the second diameter of the second sprocket is greater than the first diameter of the first sprocket.

Abstract: A supporting device for a crawler vehicle configured to groom ski slopes, is mounted between a rear wheel and a front wheel, resting along the inside of a traction portion of the track, and has a plurality of rollers much smaller in diameter than the rear wheel; a belt looped around the rollers; and a structure configured to support the rollers and to push the rollers and the belt against the inside of the traction portion of the track.

Abstract: A tracked vehicle has a pivotable suspension. The vehicle includes a vehicle frame, a motor configured to produce power for the vehicle, and left and right track assemblies that are each connected to the frame. The assemblies each have a drive wheel configured to be driven by the motor, an endless track driven by the drive wheel, wherein the endless track has an outer side and an inner side, a bogie positioned on the inner side of the endless track, a support wheel attached to the bogie and configured to roll on the endless track, a strut connected to the frame and to the bogie, and a shock absorber connected to the frame and to the strut. The strut and the shock absorber are pivotable relative to the frame. The vehicle may have low ground pressure, consistent traction, and may be modularly configured with a floatable hull for aquatic travel.

Abstract: A track assembly for traction of a tracked vehicle, such as an agricultural vehicle, an industrial vehicle (e.g., a construction vehicle) or a military vehicle, is provided. The track assembly comprises a plurality of wheels which comprises a drive wheel and a plurality of roller wheels, as well as an elastomeric endless track disposed around the plurality of wheels for engaging the ground. A roller wheel may comprise a wheel body and a covering on the wheel body. The covering may comprise a lateral portion dimensioned to contact a drive/guide lug of the track. The roller wheels and the track may implement a self-alignment system of the track assembly. The track assembly may comprise a cooling system for transferring heat away from a roller wheel. The track assembly may comprise a lateral motion mechanism allowing a roller wheel to move widthwise in response to a side load.

Abstract: A track assembly comprising an endless track trained about a sprocket and forward and aft sets of idler wheels. A plurality of apertures at the sprocket engage drive lugs that project from an interior track surface. Longitudinal stabilizer arms restrain the idler wheel axles, idler wheels, sprocket support rollers, sprocket and track against lateral movement and tension the track. Overlapping seals are formed at the idler wheels and/or sprocket support rollers. Alternative sprockets having cutouts or pockets that capture different drive lug configurations are also disclosed along with several alternative track tensioning assemblies that rotate in an eccentric fashion to tension the track.

Abstract: A track system for use as a wheel replacement on typically wheeled vehicle is disclosed. The track system comprises a drive wheel configured to be mounted to the vehicle, a support frame, front and rear idler wheels respectively pivotally mounted at the front and at the rear of the support frame, road wheels pivotally mounted along the support frame between the front and read idler wheels, and an endless track mounted about the wheels. The position of the front and/or rear idler wheels is adjustable in order to modify the overall shape of the perimeter of the track system generally defined by the endless track, thereby changing the riding behavior of the track system. A method to change the position of the adjustable idler wheels is also disclosed.

Abstract: A vehicle equipped with a double tandem members suspension system to suspend the vehicle, the double tandem members being operatively interconnected together and adapted to receive idling wheels adapted to support and guide an endless belt thereon to provide significant suspension travel and prevents an endless belt disengagement from the idling wheels.

Abstract: This invention generally relates to track systems and traction assemblies for use as wheel replacement for normally wheeled vehicles. The track system uses a traction band disposed about a sprocket wheel, idler wheels and road wheels for propulsion. The idler wheels and road wheels are typically pivotally mounted to a support frame, itself configured to be coupled to the sprocket wheel via a support member. The track system also comprises a movement limiting link mounted both to the support member and to the vehicle frame. The movement limiting link limits longitudinal and lateral movements of the track system, such as to prevent contact between the track system and the vehicle.

Abstract: The invention relates to a spring-suspended, bearing force-optimized belt-band traveling gear (10) for ground vehicles, particularly for self-propelled agricultural machines and other off-road vehicles, comprising at least two outer deflection rollers (14, 15, 16, 17) over whose periphery an endless belt-band (22) rolls off, and at least one supporting roller (24) for supporting the belt-band section, which is in contact with the ground, between both deflection rollers (14, 15, 16, 17). A bogie truck (12, 13), in which the at least two deflection rollers (14, 15, 16, 17) are mounted in a manner that enables them to rotate, is supported against a body frame of the vehicle by means of a first fluidic suspension unit and/or damping unit. The at least one supporting roller (24) is supported on the bogie truck (12, 13) by means of a second fluidic suspension unit and/or damping unit.

Abstract: The invention relates to a self-propelled, wheeled irrigation vehicles (10) that may be converted into a multi-track self-propelled irrigation vehicle (60) using one or more track assemblies (62). Each track assembly (62) includes a carriage (70) with frames (92, 94) that support a plurality of pairs of idler wheels (74, 76), and pairs of bogey wheels (80, 82, 84). A portion of one of the frames (94) is telescopically received within a portion of the other frame (92), so that the frames (92, 94) may move relative to each other in a linear fashion. A tensioning apparatus (212) is connected to the frames (92, 94) so that the frames are adjustable relative to each other. Each carriage (70) also includes a hub support frame (90) that is connected to one of the frames (92) in an offset manner. The hub support frame (90) includes an aperture (132) that rotatably receives a spindle (262) of an adaptor (258).

Abstract: A track assembly for providing traction to an all-terrain vehicle (ATV) or other tracked vehicle. The track assembly may comprise a wheel device for contacting an inner side of an endless track such that a longitudinal end segment of the endless track turns around the wheel device. The wheel device allows a change in curvature of the longitudinal end segment of the endless track when the longitudinal end segment of the endless track contacts an obstacle on the ground. In some embodiments, the wheel device may comprise a resilient wheel that is elastically deformable. In other embodiments, the wheel device may comprise a wheel carrier carrying a plurality of carried wheels.

Abstract: A track driven vehicle has an undercarriage transmission assembly that has a central transmission housing forming a one piece all welded housing. The central transmission housing has upright side wall portions with multiple layers of plates or walls in a sandwich construction on which drive motors are mounted. The drive motors are on the interior of the transmission housing, with track driven sprocket assemblies on the exterior of the side walls. Track mounting pods or frames are welded to the exterior of the side walls of the transmission housing.

Abstract: An endless track suspension is comprised of a suspension support beam having an idler wheel assembly connected to a respective one of opposed ends thereof. At least one of the idler wheel assemblies has an endless track binding mechanism. Support wheels are secured to the suspension support beam and project from a lower face thereof. A drive sprocket is secured elevated above the suspension support beam by a support arm. The drive sprocket is secured to a vehicle drive axle by a coupling ring. The drive sprocket, the support wheels and idler wheels constitute an endless track support assembly for supporting an endless track in drivable engagement thereabout. A flexible connection of the drive sprocket support arm and the support wheels absorbs shocks and vibrations transmitted to the vehicle drive axle by the displacement of the endless track over a rough ground surface.

Abstract: A transporter having a plurality of track-axle assemblies. The track axle assemblies have independent suspension, self-loading, and on-center axle rotation capability. Each of the track axle assemblies include a cylinder housing and hydraulic piston and first and second track units connected on opposing sides of the axle frame.

Abstract: A track roller assembly for a track-type machine such as an excavator or a tractor includes an outer surface with no fluid ports and an inner surface free from any fluids. The track roller includes a shaft resting on self-lubricated bushings, which include a substrate that has lubricating properties, such as a substrate that carries a solid lubricant. The track roller assembly also includes a collar and a retention plate on both sides of the shaft.

Abstract: A dynamically changing track support for a tracked vehicle, includes a body with one or more track engaging wheels mounted for rotation to the body and extending above the top of the body and below the bottom of the body. At least two arms are provided. Each arm has a body engaging end and a track engaging end. The track engaging ends of the arm extends outwardly past the body. The body engaging end is pivotally secured to the body for pivotal movement about a substantially horizontal pivot axis. One or more track engaging wheels are mounted for concentric axial rotation about an axle positioned at the track engaging end of the each arm. Dynamically adjustment of the pivotal positioning of the arms relative to the body results in changes to track geometry while maintaining consistent tension.

Abstract: A trailer that includes a belts that each encompass a front wheel and a rear wheel and have a ground engaging surface and a wheel engaging surface, the wheel engaging surface having lugs thereon for mating with the apertures in the front wheel and the rear wheel such that when the at least one of the front wheel or the rear wheel rotates, the belt is positively driven and at least one belt tensioning system for maintaining tension on the plurality of belts, the at least one belt tensioning system includes a track tension cylinder operatively mounted between an axle of the at least one of the front wheel or the rear wheel and the main frame, wherein the track tension cylinder maintains tension on the belt by moving the axle of the at least one of the front wheel or the rear wheel in a horizontal.

Abstract: A military vehicle, e.g., tank, that includes a turret, a gun mounted on the turret, a plurality of belts, wherein each of the plurality of belts encompass a front wheel and a rear wheel to provide a positive belt drive system for rotating the belt, at least one suspension system for absorbing load stresses, each suspension system having a suspension cylinder that is operatively and pivotably mounted to a military vehicle frame pivot on a main frame of the military vehicle, at least one belt tensioning system for maintaining tension on the plurality of belts, by moving the axle of the at least one of the front wheel or the rear wheel in a horizontal direction, and at least one electric drive system that includes electric drive motors for rotation of the at least one of the front wheel and the rear wheel and braking.

Abstract: A military vehicle, e.g., tank, that includes a turret, a gun mounted on the turret, a plurality of belts, wherein each of the plurality of belts encompass a front wheel and a rear wheel to provide a positive belt drive system for rotating the belt, at least one suspension system for absorbing load stresses, each suspension system having a suspension cylinder that is operatively and pivotably mounted to a military vehicle frame pivot on a main frame of the military vehicle, at least one belt tensioning system for maintaining tension on the plurality of belts, by moving the axle of the at least one of the front wheel or the rear wheel in a horizontal direction, and at least one electric drive system that includes electric drive motors for rotation of the at least one of the front wheel and the rear wheel and braking.

Abstract: A vehicle with a frame connecting a driver wheel, an idler wheel and mid-roller wheels, an endless track belt being tensioned around the driver wheel and the idler wheel and being in contact with the mid-roller wheels on a lower run thereof, the mid-roller wheels being arranged in boogies, including a front boogie having a first pivot axis, a middle boogie and a rear boogie arranged in tandem having a second pivot axis, wherein the first pivot axis and said second pivot axis act as load transfer pivots.

Abstract: An elongated beam assembly for a tracked suspension includes an inverted “U” shaped member having a first upper surface disposed at an outwardly descending lateral angle; and a plurality of track wheels coupled to the bottom of the member and disposed inside the member. In another arrangement the assembly includes a curved plate disposed between and fixed to both an inner wall and outer wall of the “U” shaped member, with the free edge of the curved plate extending outward over the top edge of the outer wall.

Abstract: A track driven device having a suspension system, positive hydraulic braking system, positive drive belt system and belt tensioning system for an improved ride, reducing belt wear and belt failure.

Abstract: The invention provides a support roller of a crawler type traveling apparatus which can prevent a rotational resistance from being increased by the soil or the like, and can stably achieve a function serving as the support roller for a long time. The invention provides a support roller of a crawler type traveling apparatus provided with a shaft (1), a support portion (2) supporting a center portion in an axial direction of the shaft (1), and a pair of rollers (3, 3) respectively arranged in both end portions (1a, 1a) of the shaft (1) and rotating together with the shaft (1). A mounting seat portion (36) of the support portion (2) to a track frame (51) is set within a range (S) of a roller outer shape formed by a pair of rollers (3, 3) in a plan view.

Abstract: An all-terrain vehicle is supported and driven by endless track units. Each track unit includes a drive belt with rows of interior drive lugs driven by cogs on multiple sprocket wheels of a common drive wheel assembly having an integrated, one-piece drum and hub. Multiple guide wheel assemblies engaging the lower run of the drive belt distribute the vehicle load across substantially the full width of the belt. Each guide wheel assembly includes a pair of guide wheel units mounted on opposite end portions of a common spindle and on opposite sides of a carrier beam of the track unit. Each guide wheel unit has a wide belt-engaging surface extending to, or close to, an edge portion of the belt and interrupted by an annular groove permitting passage of a row of the belt drive lugs while maintaining alignment of the belt and drive wheel assembly.

Abstract: A small loader has a central body that is formed as a unitary frame that has spaced apart side walls. The body is supported on drive and support units that are independently assembled, and have mounting plates that bolt to the exterior of the respective side walls of the body when the loader is to be assembled. The mounting plates support a framework for mounting spaced rotatable members, as shown members that mount a drive track for propelling and supporting the body. In one form a separate track drive sprocket is positioned above a slidably mounted track idler that creates a tension in the drive track.

Abstract: A track apparatus of the type mountable on a rotatable axle of a vehicle is provided with a frame having excellent rigidity. The frame, which is preferably of unique uni-body construction, includes first and second portions that define a drive wheel receipt well therebetween for receiving the drive wheel of the track apparatus.

Abstract: A guide wheel for a track apparatus is provided. The guide wheel includes a central hub rotatably mounted to a frame of a track apparatus. A first guide wall extends radially from the central hub and terminates at an outer edge. A second guide wall also extends radially from the central hub and terminates at an outer edge. The first and second guide walls define a circumferentially extending channel in the guide wheel. The channel in the guide wheel sequentially receives a plurality of lugs extending from the inner surface of a flexible track of the track apparatus so as to prevent lateral movement of the track.

Abstract: A track apparatus having a frame is provided. The track apparatus is mountable on a rotatable axle of a vehicle and includes a continuous flexible track and a drive wheel mountable to the rotatable axle of the vehicle for rotational movement therewith. The drive wheel drives the flexible track in response to rotation of the axle of the vehicle. The leading and trailing pairs of idler wheels and the pairs of bogie wheels of the track apparatus are mounted on stub axles so as to allow the drive wheel to pass therebetween. This, in turn, allows for the drive wheel to have an increased diameter.

Abstract: A track apparatus is provided for mounting on a rotatable axle of a vehicle. The track apparatus includes a flexible track having an upper length and a ground-engaging lower length. A drive wheel is mountable to the rotatable axle so as to drive the flexible track in response to rotation of the axle. Leading and trailing idler assemblies are attached to the frame. Each idler assembly includes a non-pneumatic idler wheel having a plurality of voids therein. In addition, a bogie assembly is also supported by the frame. The bogie assembly includes a non-pneumatic bogie wheel having a plurality of voids therein. The idler wheels and the bogie wheels have increased dimensional reliability and provide shock absorption and self-cleaning features to the track apparatus.

Abstract: A mounting device is provided for mounting a drive wheel of a track apparatus to a rotatable axle of the vehicle. The mounting device includes a generally cylindrical sleeve having first and second opposite ends. The cylindrical sleeve includes a plurality of circumferentially spaced slots therein. An attachment device interconnects the cylindrical sleeve and the axle of the vehicle and also interconnects the cylindrical sleeve and the drive wheel.

Abstract: A drive wheel mounted on a rotatable axle of a vehicle is provided for driving a continuous flexible track. The drive wheel includes a central hub mountable on the axle for rotational movement therewith. First and second rim walls extend radially from the central hub and define a circumferentially extending void in the drive wheel. A plurality of circumferentially spaced rollers are rotatably supported in the void for engaging a portion of the track.

Abstract: A modular crawler system for moving heavy objects comprises multiple crawlers that can be controlled independently of each other. Each crawler has a pair of tracks that are controllable independently of each other to enable the crawler to travel in straight lines as well as to turn the crawler. The crawlers are very compact and have low profiles. Each crawler has a carrier on which the object is placed. Locking means selectively engage and disengage the carrier. When the locking means is engaged with the carrier, the carrier cannot rotate within the crawler, thereby enabling multiple crawlers to move the object in a straight line. When the locking means is disengaged, the carrier can rotate relative to the object and thereby enable the crawler to turn under the object. The crawlers can then move the object in a different direction without changing the orientation of the object.

Abstract: The undercarriage assembly includes a roller frame and a pair of wheels held in spaced apart relation by the roller frame. An endless track belt is entrained about the pair of wheels. A bogie arm is pivotally connected to the roller frame at a pivot axis. The bogie arm includes a roller arranged and configured for supporting the track belt between the wheels. The undercarriage assembly also includes an elastomeric bearing positioned about the pivot axis of the bogie arm for reducing shock loads applied to the bogie arm. The elastomeric bearing can be arranged and configured to bias the bogie arm toward the track belt via torsion.

Abstract: A resilient track-tensioning device for tracked automotive vehicles has a track tensioning wheel arrangement (26) which includes a generally elongated pendular arm (38) which rotatably supports a track-tensioning wheel unit (62), a pretensioning or biassing arm (72) which is much shorter than the pendular arm and which has a first end-part for force transmission engagement with the pendular arm (38) at its end-part (74) that carries the track-tensioning wheel unit (62), and a second end-part for pivotal attachment to a carrier (20) through the medium of a pretensioning or biassing means (76). The device further includes an element (66) for adjustably fixing the distance between the rotational center of the track-tensioning wheel unit (62) and the attachment point (46) of the pendular arm (38). The invention also relates to a track support assembly which includes an inventive track-tensioning device.

Abstract: A track suspension apparatus for a vehicle having a frame and a continuous flexible track is provided and is turned by a drive wheel operably attached to the frame for engaging and driving the flexible track. Structure is provided for rotatably mounting the drive wheel to the vehicle and an adaptive device is associated with the mounting structure is provided for permitting the mounting structure to be attached directly to a first vehicle at times and, alternatively, to a second vehicle at other times.