A cross-link for a track of a tracked vehicle, in particular a snow groomer, configured to advance along delicate ground, and which extends along a designated plane and has a mounting member comprising a wall configured for being arranged in contact with the delicate ground; a blade, which protrudes from the wall, is fixed to the wall and has a free edge, wherein the wall and the blade are configured so as to define two support surfaces extending on opposite sides of the blade to enable the sinking of the blade into the delicate ground and prevent the sinking of the mounting member.

A drive track for a cleaning robot moving on inclined surfaces such as photovoltaic panels has a multilayer structure comprising: an internal layer formed by a continuous belt having an internal face able to engage with means for driving the track; an intermediate layer including a plurality of damping blocks disposed over the entire length of the continuous belt of the internal layer with a predefined separation (e); and an external running layer coming into contact with the surface on which the track moves, the running layer being formed by pads supported by the damping blocks. The damping blocks are made of elastomer material and have a cellular structure with a plurality of parallel trough-channels.

In an elastic crawler (10) and an elastic crawler drive mechanism (100), at least a portion of the outer edge of an engaging portion (12) has a cross-sectional arc shape such that both the trajectory drawn by the outer edge of the engaging portion (12) from when the engaging portion (12) starts to enter a tooth groove of a sprocket (20) until engagement between the engaging portion (12) and teeth (22) is complete and the trajectory drawn by the outer edge of the engaging portion (12) from when the engaging portion (12) starts to disengage from the teeth (22) until disengagement is complete do not project further outward than the outer edge of the engaging portion (12) when the engagement is complete.

In an elastic crawler (10) and an elastic crawler drive mechanism (100), at least a portion of the outer edge of an engaging portion (12) has a cross-sectional arc shape such that both the trajectory drawn by the outer edge of the engaging portion (12) from when the engaging portion (12) starts to enter a tooth groove of a sprocket (20) until engagement between the engaging portion (12) and teeth (22) is complete and the trajectory drawn by the outer edge of the engaging portion (12) from when the engaging portion (12) starts to disengage from the teeth (22) until disengagement is complete do not project further outward than the outer edge of the engaging portion (12) when the engagement is complete.

Provided is a rubber crawler including a guide rubber that is reduced in heat generation and excellent in abrasion resistance and an inner peripheral rubber that is excellent in scratch resistance and abrasion resistance and having excellent adhesiveness between the guide rubber and the inner peripheral rubber.

The rubber crawler of the present invention includes a guide rubber obtained by crosslinking a guide rubber composition and an inner peripheral rubber obtained by crosslinking an inner peripheral rubber composition, the guide rubber composition containing a rubber component (A) and a carbon black (B), the rubber component (A) containing a butadiene rubber and at least one selected from a natural rubber and isoprene rubber, and containing 50 to 80% by mass of the natural rubber and the isoprene rubber and 20 to 50% by mass of the butadiene rubber, the carbon black (B) containing a carbon black (B-1) having an N.sub.2SA of 60 to 125 m.sup.2/g and a DBP absorption of less than 130 mL/100 g and a carbon black (B-2) having an N.sub.2SA of less than 60 m.sup.2/g and a DBP absorption of 110 mL/100 g or more, and a total content of the carbon black (B-1) and the carbon black (B-2) is 25 to 65 parts by mass based on 100 parts by mass of the rubber component; the inner peripheral rubber composition containing a rubber component (a) and a carbon black (b), the rubber component (a) containing 60 to 100% by mass of SBR and 0 to 40% by mass of a diene-based rubber other than the styrene-butadiene rubber, and a carbon black in an amount of 50 to 70 parts by mass based on 100 parts by mass of the rubber component.

A track piece for a continuous track is disclosed. The track piece is rotationally asymmetric and comprises connectors which enable connection to an adjacent track piece of the same shape which has been rotated 180. This may allow a track to be produced with multiple similarly shaped track pieces which has multiple track surfaces. This may also allow for a continuous track to be produced with a number of track pieces connected along a central band, wherein the track comprises spaced apart lateral track piece projections.

A track piece for a continuous track is disclosed. The track piece is rotationally asymmetric and comprises connectors which enable connection to an adjacent track piece of the same shape which has been rotated 180. This may allow a track to be produced with multiple similarly shaped track pieces which has multiple track surfaces. This may also allow for a continuous track to be produced with a number of track pieces connected along a central band, wherein the track comprises spaced apart lateral track piece projections.

An elastic crawler includes an elastic crawler body and plural cord layers. The elastic crawler body is shaped into an endless loop. The plural cord layers are formed by plural cords covered by the elastic body, and the plural cord layers are embedded in the elastic crawler body. Respective cords included in mutually adjacent cord layers are disposed so as to intersect each other when viewed along a thickness direction of the elastic crawler body, and in at least one pair of adjacent cord layers inside at least a partial region of the elastic crawler body, a total area of portions where the respective cords included in each layer of the adjacent cord layers overlap with each other, is smaller than a total area of portions where respective regions of each layer of the adjacent cord layers in which none of the cords are disposed overlap with each other.

An elastic crawler includes an elastic crawler body and plural cord layers. The elastic crawler body is shaped into an endless loop. The plural cord layers are formed by plural cords covered by the elastic body, and the plural cord layers are embedded in the elastic crawler body. Respective cords included in mutually adjacent cord layers are disposed so as to intersect each other when viewed along a thickness direction of the elastic crawler body, and in at least one pair of adjacent cord layers inside at least a partial region of the elastic crawler body, a total area of portions where the respective cords included in each layer of the adjacent cord layers overlap with each other, is smaller than a total area of portions where respective regions of each layer of the adjacent cord layers in which none of the cords are disposed overlap with each other.

Provided are an elastic crawler and a crawler-type travel device in which wheel detachment and edge cut are unlikely to occur even when performing operations inside a large cylindrical structure or on a ground surface that is highly curved. An elastic crawler (1) has a crawler body (2) comprising an endless elastic body depressed by roller wheels having left and right tread surfaces, a plurality of lugs (4) being disposed on the ground-contact surface (7) of the crawler body (2). On one side portion in relation to the center position in the crawler width direction on the ground-contact surface side of the crawler body (2), outward of a tread surface (11c) which is the inner side of the roller wheels in the crawler width direction, toward the vicinity of one side end edge in the crawler width direction from a position within a range inward of a tread surface (11a) which is the outer side, a distance (dp) in the height direction of the tread surface (11a) which is the outer side is gradually reduced, whereby an inclined surface (7a) is formed such that the crawler thickness is gradually reduced, and due to this configuration, the inclined surface does not contact the ground when travelling on a flat surface.