Refuse packer assembly with double acting rack and pinion drive
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 4, 1995
Grant Date -
N/A
app pub date -
May 21, 1992
filing date -
Jul 24, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A refuse packer includes a paddle (14) which oscillates horizontally about axis (19) through about 200.degree. to sweep refuse into a storage chamber of a vehicle (not shown). The paddle has an actuating assembly (26) supported by a single housing (27) secured to a vehicle chassis. The actuating assembly has a drive shaft with a hexagonal end clamped in a hexagonal opening (21) of the paddle. The drive shaft also has a pinion engaged by a pair of opposed toothed racks which slide in respective hydraulic cylinders (35, 36, 37, 38) which act to oscillate the shaft and paddle. A pair of hydraulic resistance cylinders (40) oppose side loads set up by the engagement of the racks with the pinion. In former arrangements the paddle was coupled to a crank plate moved by hydraulic rams which swung as they reciprocated. This led to uneven torque on the paddle and a tendency to stall midstroke, whereas the present drive provides even torque, throughout the oscillations.
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