Processing

Please wait...

Settings

Settings

Goto Application

1. WO2021080856 - ROCKER SUPPORT ASSEMBLY

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

Claims

1. An off-highway rear haul truck (10) comprising: a first support rocker (274) pivotally coupled to a first rocker attachment interface (272) of a space frame (20) of the off-highway rear haul truck (10); and

a second support rocker (274) pivotally coupled to a second rocker attachment interface (272) of the space frame (20),

wherein the first and second support rockers (274) are spaced apart from each other in a width direction of the space frame (20) and configured to pivot in the width direction of the space frame (20) on the first and second rocker attachment interfaces (272) about respective pivot axes that extend in a length direction of the space frame (20),

wherein each of the first and second support rockers (274) includes:

a rocker body (2740) having a pivot bore (2741), the pivot bore (2741) having therethrough a pivot pin (273) to pivotally couple the rocker body (2740) to the first or the second rocker attachment interface (272), and

a rocker support insert (2750) provided on a top portion of the rocker body (2740),

wherein the rocker support insert (2750) is removably coupled to the top portion of the rocker body (2740), and

wherein the rocker support insert (2750) defines an upward-facing contact surface (275) configured to have seated thereon a down-facing contact surface (371) of a vertical support structure (370) provided on a front wall (37) of a dump body (30) of the off-highway rear haul truck (10).

2. The off-highway rear haul truck of claim 1, wherein the upward-facing contact surface (275) of each of the first and second support rockers (274) is concave.

3. The off-highway rear haul truck of claim 1, wherein the rocker body (2740) of each of the first and second support rockers (274) has a rotation limit mechanism (2748) configured to limit clockwise and counterclockwise rotation of the first or the second support rocker (274) to a predetermined range.

4. The off-highway rear haul truck of claim 1, wherein the rocker support insert (2750) of each of the first and second support rockers (274) is removably coupled to the top portion of the rocker body (2740) by a plurality of fasteners (2747) in the form of bolts.

5. The off-highway rear haul truck of claim 1, wherein the rocker support insert (2750) of each of the first and second support rockers (274) has a support plate (2752) and support padding (2756).

6. A support rocker (274) configured to be pivotally coupled to a rocker attachment interface (272) of a space frame (20), comprising:

a rocker body (2740) having a pivot bore (2741) configured to receive therethrough a pivot pin (273) to pivotally couple the rocker body (2740) to the rocker attachment interface (272); and

a rocker support insert (2750) provided on a top portion of the rocker body (2740),

wherein the rocker support insert (2750) is removably coupled to the top portion of the rocker body (2740), and

wherein the rocker support insert (2750) defines an upward-facing contact surface (275) configured to have seated thereon a down-facing contact surface (371) of a vertical support structure (370) of a dump body (30) of a rear haul truck (10) provided on the space frame (20).

7. The support rocker of claim 6, wherein the upward-facing contact surface (275) is concave.

8. The support rocker of claim 6, wherein the rocker body (2740) has a rotation limit mechanism (2748) configured to limit clockwise and counterclockwise rotation of the support rocker (274) to a predetermined range.

9. The support rocker of claim 8, wherein the rotation limit mechanism includes, on a bottom portion of the rocker body (2740), a first set of legs (2748) that extend downward and outward on a first side of the rocker body (2740), and a second set of legs (2748) different from the first set of legs (2748) that extend downward and outward on a second side of the rocker body (2740) opposite the first side.

10. The support rocker of claim 6, wherein the rocker support insert (2750) has a support plate (2752) and support padding (2756) fixedly coupled to the support plate (2752).