A track chain member comprises a shoe member defining a track chain traveling direction and a lateral direction perpendicular to the track chain traveling direction, the shoe member further defining a first lateral end, a second lateral end, and a ground engaging surface spanning from the first lateral end to the second lateral end; wherein the shoe member further defines a main central void disposed on the ground engaging surface that is centered along the lateral direction of the shoe member with respect to the first and the second lateral ends.

Vehicle comprising a hull and motorised aquatic propulsion members and motorised land propulsion members, this vehicle being able to move between a navigation position and a land transport position in which it rests on sets of caterpillar tracks. Each set of caterpillar tracks (1) is equipped with an even number of rollers (7) so as to define a set of adjacent roller pairs (71, 72). The rollers (71, 72) of each pair are connected to the chassis (2) by suspension means comprising a set (12) of at least two superposed curved elastic leaves made of a fibre-reinforced thermosetting resin, namely an upper leaf (131) and a lower leaf (132), the set being fixed on the one hand to the axles (9) of the rollers (71, 72) at its respective ends and, on the other hand, to the chassis (2) in its central part, and the upper leaf (13i) and the lower leaf (132) of each of the sets of leaves (12) are joined together and covered with a layer of elastomer (14).

A track pad includes a shoe member that has two bottom voids extending upwardly from the ground engaging surface of the shoe member, and which form a central support pillar having a serpentine surface laterally on side of the central support pillar, and another serpentine surface laterally on the other side of the central support pillar. The two bottom voids form oval perimeters at the ground engaging surface.

A wear resistant component includes a matrix portion made of metal, a core embedded in the matrix portion and having a hardness higher than that of the matrix portion, and a plurality of support members having at least one end exposed from a surface of the matrix portion, extending toward an interior of the matrix portion, and contacting the core at a portion other than the one end to define a position of the core within the matrix portion.

A wear resistant component includes a matrix portion made of metal, a core embedded in the matrix portion and having a hardness higher than that of the matrix portion, and a plurality of support members having at least one end exposed from a surface of the matrix portion, extending toward an interior of the matrix portion, and contacting the core at a portion other than the one end to define a position of the core within the matrix portion.

The present invention relates to a track assembly for a tracked vehicle, which, particularly, comprises: a support shaft disposed to be orthogonal to a traveling direction of a work body; a connecting collar for connecting the support shaft to the work body while supporting both ends of the support shaft; a rotary roller fitted on the outer periphery of the support shaft and rotating while supporting the inner peripheral surface of a track; a first detection unit disposed between the support shaft and the rotary roller to measure the number of rotations of the rotary roller or the acceleration thereof; a second detection unit for measuring the temperature of a lubricant applied between the support shaft and the rotary roller; a third detection unit disposed on the rotary roller to measure a wear state of the rotary roller; and a communication unit for communicating, to the outside, a result value measured by the first detection unit or the third detection unit. Therefore, the track assembly can improve the efficiency and reliability of work.

The present invention relates to a track assembly for a tracked vehicle, which, particularly, comprises: a support shaft disposed to be orthogonal to a traveling direction of a work body; a connecting collar for connecting the support shaft to the work body while supporting both ends of the support shaft; a rotary roller fitted on the outer periphery of the support shaft and rotating while supporting the inner peripheral surface of a track; a first detection unit disposed between the support shaft and the rotary roller to measure the number of rotations of the rotary roller or the acceleration thereof; a second detection unit for measuring the temperature of a lubricant applied between the support shaft and the rotary roller; a third detection unit disposed on the rotary roller to measure a wear state of the rotary roller; and a communication unit for communicating, to the outside, a result value measured by the first detection unit or the third detection unit. Therefore, the track assembly can improve the efficiency and reliability of work.

An undercarriage includes a plurality of bottom support rollers defining a bottom support roller platform distance and front and rear wheels defining a wheel pitch distance, and a track chain defining a link pitch distance and a ratio of the bottom support roller platform distance to the wheel pitch distance ranges from 0.70 to 0.95 and a ratio of the roller spacing distance to the link pitch distance ranges from 0.75 link pitch distance to 1.50 link pitch distances.

An undercarriage includes a plurality of bottom support rollers defining a bottom support roller platform distance and front and rear wheels defining a wheel pitch distance, and a track chain defining a link pitch distance and a ratio of the bottom support roller platform distance to the wheel pitch distance ranges from 0.70 to 0.95 and a ratio of the roller spacing distance to the link pitch distance ranges from 0.75 link pitch distance to 1.50 link pitch distances.

An undercarriage includes a plurality of bottom support rollers defining a bottom support roller platform distance and front and rear wheels defining a wheel pitch distance, and a track chain defining a link pitch distance and a ratio of the bottom support roller platform distance to the wheel pitch distance ranges from 0.70 to 0.95 and a ratio of the roller spacing distance to the link pitch distance ranges from 0.75 link pitch distance to 1.50 link pitch distances.