Mobile lift device
First Claim
Patent Images
1. A wrecker comprising:
- a movable chassis;
a boom assembly supported by the chassis;
an underlift system configured to lift a vehicle to be towed and having at least one boom section movably coupled at a rear portion of the chassis; and
a first front outrigger comprising;
a first support beam having first end pivotally coupled at a first side of the chassis and a second end extending laterally beneath the chassis to a second side of the chassis;
a second support beam telescopically engaging the first support beam and movable between a retracted position and an extended position; and
an actuator device for adjusting the angle of the first support beam and having a first end coupled at the second side of the chassis and a second end coupled to the second end of the first support beam.
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Accused Products
Abstract
A mobile lift device having a load moving device capable of engaging a load is provided. The mobile lift device includes one or more systems for stabilizing the mobile lift device during operation of the load moving device. According to one exemplary embodiment, the mobile lift device is a heavy duty wrecker having a rotatable boom assembly. The heavy duty wrecker comprises a front outrigger system for stabilizing the wrecker during operation of the boom assembly. The front outrigger system comprises a pair of outriggers that form a generally criss-cross configuration when in an extended or stabilizing position.
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Citations
24 Claims
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1. A wrecker comprising:
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a movable chassis; a boom assembly supported by the chassis; an underlift system configured to lift a vehicle to be towed and having at least one boom section movably coupled at a rear portion of the chassis; and a first front outrigger comprising; a first support beam having first end pivotally coupled at a first side of the chassis and a second end extending laterally beneath the chassis to a second side of the chassis; a second support beam telescopically engaging the first support beam and movable between a retracted position and an extended position; and an actuator device for adjusting the angle of the first support beam and having a first end coupled at the second side of the chassis and a second end coupled to the second end of the first support beam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 21, 22)
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15. A wrecker comprising:
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a movable chassis; a rotatable boom assembly supported on the chassis; an underlift system configured to lift a vehicle to be towed and having at least one boom section movably supported at a rear end of the chassis; an outrigger comprising; a first support member having first end pivotally coupled at a first side of the chassis and a second end extending laterally beneath the chassis to a second side of the chassis; a second support member movably supported relative to the first support and movable between a retracted position and an extended position; an actuator device having a first end coupled at the second side of the chassis and a second end coupled to the second end of the first support member; and locking means for selectively retaining the second support member in the extended position. - View Dependent Claims (16, 17, 18, 23)
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19. A wrecker comprising:
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a movable chassis; a rotatable and extensible boom assembly supported on the chassis; an underlift system configured to lift a vehicle to be towed and having at least one boom section movably supported at a rear end of the chassis; and a front outrigger comprising; a first support beam coupled to the chassis; a second support beam extensible from the first support beam and having an aperture configured to selectively receive a locking pin, and wherein insertion of the locking pin into the aperture positively locks the second support beam in an extended position relative to the first support beam. - View Dependent Claims (20, 24)
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Specification