Land vehicles – Wheeled – Attachment
Patent
1998-06-12
2000-06-20
Underwood, Donald W.
Land vehicles
Wheeled
Attachment
414694, 212304, 212305, B60S 902
Patent
active
06076855&
ABSTRACT:
A dual mode stabilizer [10] for primary use in conjunction with a backhoe loader, such as a rubber-tired backhoe loader or in conjunction with a backhoe attachment for a skid steer loader. The dual mode stabilizer [10] includes a pair of base members [20] rigidly fixed on opposite sides of the tractor [15] proximate the backhoe attachment. A stabilizer arm assembly [30] engages the base member [20]. The stabilizer arm assembly [30] is piston [60] actuated and includes an outrigger arm member [65], a sliding arm member [70] pivotally connected to the outrigger arm member [65] so as to limit movement of the outrigger arm member [65] with respect to the sliding arm member [70] to rotational movement about a first pivot point [75], a first locking mechanism for preventing rotational movement of the outrigger arm member [65]. Movement of the sliding arm member [70] within the base member [20] is limited to axial movement. A second locking mechanism is provided between the base member [20] and the sliding arm member [70] to prevent axial movement of the sliding arm member [70] within the base member [20]. Actuation of the piston [60] with the first locking mechanism engaged, causes the stabilizer arm assembly [30] to travel downwardly within base member thus providing operation in the vertical stabilizer mode. Contrariwise, actuation of the piston [60] with the first locking mechanism released and the second locking mechanism engaged, causes the outrigger arm member [65] to rotate about the first pivot point [75] thereby resulting in operation in the fold down stabilizer mode.
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