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US 2017/0283229 A1Published application
Scissor-boom lift
OwnerDongFeng Shiinventor
Life of this patent
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Abstract
A scissor boom system including a scissor boom assembly having a telescopic boom section including a base-boom, a middle-boom, and a top-boom, a scissor links assembly, a chassis, and a power hoist. The chassis supports the power hoist, the power moves the telescopic boom section and the scissor links assembly between raised and lowered conditions when manipulated. The scissor boom assembly provides a stable work platform for workers. The telescopic boom section provides for horizontal-movement of a work platform, and the scissor links assembly is thus able to provide vertical-movement of the work platform, as desired.
Claims16
A scissor-boom lift, comprises:
- a telescopic boom assembly including;
- a base-boom;
- a middle-boom;
- a top-boom;
- and
- a power hoist
- a scissor links assembly;
- and
- a chassis;
- wherein said scissor links assembly is coupled to said telescopic boom assembly at top and to the chassis at bottom;
- wherein said telescopic boom assembly at top is arranged in telescopic series backwardly and horizontally comprising said base-boom, said middle-boom, and said top-boom powered by the power hoist to extend and alternately retract horizontally;
- wherein said scissor links assembly in the middle is arranged with all links pivoted together parallelly and powered by a hydraulic cylinder to make simultaneous folding and alternately unfolding movement vertically;
- and
- wherein said chassis has counterweights in between and on top of front wheels and the front wheels can steer 90 degrees to both right and left.
11 more elements
Dependencies are inferred from the claim text.