Provided is an elastic crawler and an elastic crawler device capable of achieving both low fuel consumption and excellent ride comfort. The elastic crawler comprises: a main body; cores respectively having a pair of wings and being embedded in a circumferential direction; a track roller rolling surface formed on an inner circumferential surface of the main body; a recess formed on the inner circumferential surface in a manner extending from the track roller rolling surface toward a widthwise outer side; lugs formed on an outer circumferential surface of the main body, the lugs respectively extending in a width direction between the cores from one end overlapping the track roller rolling surface in a thickness direction toward the other end overlapping a part in which the wings of the cores are embedded in the thickness direction. The elastic crawler device comprises the elastic crawler, a sprocket and a track roller.

A crawler track includes a link and is driven in a direction of travel by a sprocket having a plurality of teeth. The link includes a pad, a first grouser, and a second grouser. The pad defines a first surface, a second surface opposite the first surface, a first end, and a second end spaced apart from the first end along the direction of travel. The pad defines at least one opening extending through the pad between the first surface and the second surface, and the opening is operable to receive a sprocket tooth. The first grouser is positioned on the first surface proximate the first end of the pad, while the second grouser is positioned on the first surface proximate the second end of the pad. The first grouser and the second grouser extend in a direction substantially perpendicular to the direction of travel of the track.

A bushing is provided for use in a track assembly including a plurality of link members forming a track chain, a plurality of pin members configured to couple adjacent link members, a plurality of bushings configured to receive the pin members, and a drive sprocket including a plurality of teeth configured to engage with the plurality of bushings. The bushing may include a central axial bore configured to receive a pin member. The bushing may also include a center portion having a first diameter, the center portion being configured to engage with a concave recess defined by adjacent teeth. The bushing may further include at least one outer portion having a second diameter, the outer portion being configured to engage with a link member. A ratio between the first diameter and the second diameter may be greater than or equal to about 1.5:1.

A crawler mechanism includes a frame, a track including a plurality of shoes coupled together and supported for movement relative to the frame along a direction of travel, a sprocket, and a guide rail. The frame includes a first end, a second end, a first side extending between the first end and the second end and proximate a support surface, and a second side. Each shoe includes an intermediate portion having a first hardness. The sprocket drives the plurality of shoes to move along the second side of the frame. The guide rail is coupled to the second side of the frame and includes a base having an outer surface and a coating bonded to the outer surface. The coating contacts the intermediate portion of the shoes as the shoes move along the second side of the frame, and the coating defines a second hardness less than the first hardness.

The present invention relates to a forest machine track that comprises a plurality of connecting elements having a first end and a second end, a plurality of outer tubes arranged in parallel and spaced apart from each other, and a plurality of means for storing and releasing mechanical energy, each of the plurality of means for storing and releasing mechanical energy being arranged in connection with one of the plurality of outer tubes. In the forest machine track adjacent outer tubes are connected by two connecting elements in such a manner that the first ends of the two connecting elements are connected to one of the adjacent outer tubes and the second ends of the two connecting elements are connected to the means for storing and releasing mechanical energy in connection with the other of the adjacent outer tubes.

The present invention relates to a chain link for a crawler chain, wherein the chain link comprises at least two roller tracks extending in parallel, on whose running surfaces at least one track roller is movable during operation of the crawler, wherein the running surfaces of the at least two roller tracks are asymmetrical.

A track assembly having a track link with a concave roller surface. The track link is connected to a track that is mounted about a plurality of rollers so that the concave roller surface engages the plurality of rollers.

A crawler mechanism includes a frame, a track including a plurality of shoes coupled together and supported for movement relative to the frame along a direction of travel, a sprocket, and a guide rail. The frame includes a first end, a second end, a first side extending between the first end and the second end and proximate a support surface, and a second side. Each shoe includes an intermediate portion having a first hardness. The sprocket drives the plurality of shoes to move along the second side of the frame. The guide rail is coupled to the second side of the frame and includes a base having an outer surface and a coating bonded to the outer surface. The coating contacts the intermediate portion of the shoes as the shoes move along the second side of the frame, and the coating defines a second hardness less than the first hardness.

A crawler track includes a link and is driven in a direction of travel by a sprocket having a plurality of teeth. The link includes a pad, a first grouser, and a second grouser. The pad defines a first surface, a second surface opposite the first surface, a first end, and a second end spaced apart from the first end along the direction of travel. The pad defines at least one opening extending through the pad between the first surface and the second surface, and the opening is operable to receive a sprocket tooth. The first grouser is positioned on the first surface proximate the first end of the pad, while the second grouser is positioned on the first surface proximate the second end of the pad. The first grouser and the second grouser extend in a direction substantially perpendicular to the direction of travel of the track.

A shoe for a crawler track includes a first end, a second end, a longitudinal axis extending between the first and second ends, a roller path axis extending perpendicular to the longitudinal axis, and an intermediate portion disposed between the first and second ends. The intermediate portion includes a roller-engaging portion disposed along the roller path axis, the intermediate portion including four successive faces that form a parallelogram when viewed from a direction substantially perpendicular to the longitudinal axis, two of the four faces being disposed at an acute angle relative to the longitudinal axis.