Abstract: A sprocket for a tracked vehicle. The sprocket has a plurality of sockets for engaging drive lugs on an inner surface of a track driven by the sprocket. The sprocket also including a support surface for engaging with an inner surface of the track and which is in rolling contact with the inner surface of the track.

Abstract: A unitary flexible track for converting a wheeled vehicle into a tracked vehicle, the track being provided for mounting in longitudinal direction around at least two successive vehicle tire-wheel assemblies in movement direction of the vehicle, the track having an inner circumferential track surface provided to form a running surface for the wheels and an outer circumferential surface provided to form a running surface for the track with respect to the medium over which the track is to be displaced, each tire-wheel assembly having a circumferential running surface provided to contact the inner circumferential track surface of the track, each tire-wheel assembly comprising a loaded wheel part and a non-loaded wheel part.

Abstract: Rubber crawler equipment (1) capable of reducing the weight and cost of a rubber crawler, and providing a lightweight and fast drive for tires and crawlers, wherein core members (5) formed of plastic material instead of metal are embedded in a rubber crawler (2), and the rubber crawler (2) is suspendedly installed on tires (3, 4), whereby the rubber crawler (2) can be easily attached and detached, and the extension thereof can be adjusted by regulating the internal pressure of a hollow tire (3).

Abstract: The present invention relates to an undercarriage equipped with a coreless rubber crawler in a chain drive configuration, and more particularly, to a track system undercarriage for a skid loader in which an auxiliary axle and an auxiliary sprocket are provided to solve the problem of load concentration at the contact points of a coreless rubber crawler, which is adopted to reduce the total load of a vehicle. A gear chain is provided surrounding a main axle and the auxiliary axle, so that the load is dispersed over a large contact area of the coreless rubber crawler, thereby relieving internal stress concentrations at the sprocket and the coreless rubber crawler, and significantly improving the life span of the coreless rubber crawler.

Abstract: A tracked-vehicle drive has a wheel rotatably driven about an axis and having an outer surface, an endless traction element spanned over and frictionally engaging the wheel so as to be advanced thereby when the wheel rotates and having an inner face formed with an endless row of spaced teeth, and an auxiliary drive member displaceable adjacent the traction element and formed with an endless row of spaced entrainment formations in constant mesh with the teeth so that the drive member is displaced synchronously with the traction element. A coupling body having entrainment formations in constant mesh with the drive-member entrainment formations is engageable with the wheel outer surface. The body can be coupled to the wheel for positive driving of the traction element from the wheel via the member and body and can be decoupled from the wheel for frictional coupling of the traction element by the wheel.

Abstract: Driving systems for belted machines have in the past utilized a common material interface to drive the belted machine. For example, rubber belted machines have generally used a rubber drive therewith. The present drive wheel is made of metal and includes a plurality of contacting elements attached to the outer surface of a drum. Each of the contacting elements have a contacting surface have a generally diamond configuration defining a leading point of contact, a trailing point of contact, a major length and a minor length. The plurality of contacting elements are arranged on the drum in a plurality of spaced apart rows which extend circumferentially along and axis and each of the major lengths coincide with the axis. Furthermore, the major length is greater in length than the minor length. The plurality of contacting elements extend from the outer surface a preestablished distance and the interface of the preestablished distance and the contacting surface form a sharp edge 67 or a point 68.

Abstract: A crawler belt for use on a crawler motor vehicle has an elongate belt body drivable in a predetermined direction, and a plurality of ridges mounted on a ground contact side of the belt body, each of the ridges having at least one sipe defined in a free end thereof for allowing the ridge to be flexibly deformable in a direction opposite to the predetermined direction. Each of the ridges has a plurality of sipes defined therein and extending longitudinally thereof or substantially perpendicularly to the predetermined direction. The ridges comprise a plurality of chevron-shaped ridges pointing toward the predetermined direction and succesively arranged at predetermined spaced intervals in the predetermined direction. The ridges are divided into a plurality of groups each including a plurality of ridges by grooves extending transversely of the belt body, and divided into a plurality of segments by at least one longitudinal groove extending longitudinally of the belt body.

Abstract: A vehicle drive includes pneumatic tires mounted on rims and includes a track which is engaged by and cooperates with the tires. Tire-supporting elements on the track position the tires on the track. Also, the tires, on at least the surfaces which come into contact with the tire-supporting elements, have an outer rubber layer which has a high wear resistance and low friction properties and in which 50-100% is butadiene rubber.