High-lift lateral dump system for pavement/street sweepers
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United States of America Patent
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Apr 16, 2002
Grant Date -
N/A
app pub date -
May 30, 2000
filing date -
May 30, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A high-lift lateral dump system for pavement/street sweepers (20) includes a debris container (30) positioned between laterally adjacent lift assemblies (40R, 40F), each lift assembly (40R, 40F) including a vertically extending upright (42), a lift arm (44) that is pivoted at one end to upper end of the upright (42), and a single-ended double-acting hydraulic lift cylinder (46) that functions to raise and lower the lift arm (44). A torque control mechanism (48) minimizes mis-phasing between the lift cylinders (46) of each lift assembly (40R, 40F), and a manual safety stop mechanism (50) allows an operator to selectively lock the debris container (30) and the related structural components in the lifted position. An attitude-control system uses hydraulic fluid from the rod end (46r) of the lift cylinder (46) to maintain the debris container (30) in a horizontal or near horizontal attitude during the lift cycle.
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