A retainer plate configured to retain a center pin for an equalizer bar comprises a first face and a second face opposite the first face; a first support arm having a first reduced contact portion; a second support arm having a second reduced contact portion; and a neck portion between the first support arm and the second support arm. The retainer plate can be symmetrical about a center vertical axis in an end view thereof, and the first support arm, the second support arm, and the neck portion can define a central concave recess configured to receive the center pin via an opening into the central concave recess defined between the first support arm and the second support arm. The first support arm can have a first set of openings through a thickness of the retainer plate and configured to receive respective fasteners therethrough, and the second support arm can have a second set of openings through the thickness of the retainer plate and configured to receive respective fasteners therethrough.

Each scissor frame of the patient positioning table has a first and a second scissor arm connected in an X-shaped arrangement to pivot about a common pivot axis via a lifting facility for vertically moving the positioning table. The lifting facility includes a roller arrangement configured to be moved by a traction device. The roller arrangement is arranged between, and guides, arm segments of the scissor frames. The arm segments open in a V-shape, wherein the traction device is fixed in position by at least one end and is led via a roller unit having deflecting rollers, one located upstream of the roller arrangement and one located downstream of the roller arrangement. The position of the roller arrangement between the arm segments is variable with the aid of a drive facility, which interacts with the traction device.

In one aspect of the present invention is provided an attachment device (100) for attachment of a trailing arm (54a) to a track support beam (22) intended to be connected, via said trailing arm (54a), to a center beam (30, 32) or other structural element situated between two track assemblies (21) of a tracked vehicle (10). The attachment device (100) is secured to the track support beam (22) and configured to attach the trailing arm (54a) to the track support beam (22) via an axis (X2) running above and substantially centrally along an upper side of the track support beam (22), in the longitudinal direction of the track support beam. In this way, a robust, structurally strong, suspension-admitting attachment device that is easy to manufacture and assemble is achieved. In another aspect of the invention is provided a tracked vehicle (10) comprising such an attachment device (100) and in a further aspect of the invention a method of manufacturing a track support beam (22) comprising such an attachment device (100).

A rim includes a wall, a first annular projection, and a second annular projection. The wall has a first end and a second end. The first end includes a first opening, and the second end includes a second opening that communicates with the first opening to define a bore for a shaft of a track roller. The first annular projection and the second annular projection, which are configured to engage a track, extend radially from the wall. The first annular projection includes a first flange that is configured to constrain movement of the track in a first axial direction. The first flange includes a plurality of notches. The second annular projection includes a second flange that is configured to constrain movement of the track in a second axial direction that is opposite to the first axial direction.

A track assembly for assisting in moving a farm implement along a ground surface in a line of travel is provided. The track assembly includes a tilt arm comprising front and rear ends. The track assembly includes a camber arm coupled to the tilt arm such that the camber arm permits the tilt arm to pivot about a first axis perpendicular to the line of travel and a second axis parallel to the line of travel. The camber arm is located between the front and rear ends of the tilt arm.

A work vehicle includes: a body; left and right front wheels provided for the body; and left and right rear crawler units provided for the body. The rear crawler units each include: a drive wheel provided for a rear axle of the work vehicle; a front idler wheel forward of the drive wheel; a rear idler wheel backward of the drive wheel; a plurality of roller wheels between the front idler wheel and the rear idler wheel; a crawler belt wound around the drive wheel, the front idler wheel, the rear idler wheel, and the plurality of roller wheels; a track frame swingable about a swing shaft that extends in a left-right direction of the body and holding the front idler wheel, the rear idler wheel, and the plurality of roller wheels; and a position change mechanism configured to move the swing shaft in a front-back direction of the body.

A track assembly for assisting in moving a farm implement along a ground surface in a line of travel is provided. The track assembly includes a tilt arm comprising front and rear ends. The track assembly includes a camber arm coupled to the tilt arm such that the camber arm permits the tilt arm to pivot about a first axis perpendicular to the line of travel and a second axis parallel to the line of travel. The camber arm is located between the front and rear ends of the tilt arm.

A mobile farm implement includes a track assembly with a plurality of arms that are pivotally coupled to support idler wheels and bogie wheels such that the track assembly is able to better conform to the terrain when the implement is towed behind a tractor or otherwise moved.

The invention relates to a forest machine, comprising a chassis having sides, a swing bogie mounted on bearings to the chassis, comprising a swing frame, second sides and at least two wheels, a swing bearing attaching the chassis to mount the swing bogie, a power transmission arranged through the swing bearing in connection with the chassis, a support formed by two pairs between the chassis and the swing frame, each pair having a protrusion as a support surface and a rail as a counter surface to transmit lateral forces between the chassis and the swing frame during contact between the two surfaces, wherein each pair is located at a distance from the swing bearing on separate side of the swing bearing, and in each pair, one of the protrusions and the rail is attached to the side of the chassis and other to the second side of the swing frame.

A retainer plate configured to retain a center pin for an equalizer bar comprises a first face and a second face opposite the first face; a first support arm having a first reduced contact portion; a second support arm having a second reduced contact portion; and a neck portion between the first support arm and the second support arm. The retainer plate can be symmetrical about a center vertical axis in an end view thereof, and the first support arm, the second support arm, and the neck portion can define a central concave recess configured to receive the center pin via an opening into the central concave recess defined between the first support arm and the second support arm. The first support arm can have a first set of openings through a thickness of the retainer plate and configured to receive respective fasteners therethrough, and the second support arm can have a second set of openings through the thickness of the retainer plate and configured to receive respective fasteners therethrough.