Sortation conveyor
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United States of America Patent
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-
Aug 15, 1989
Grant Date -
N/A
app pub date -
Oct 30, 1987
filing date -
Oct 30, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved lever arm for a tilt tray sortation conveyor has formula defined unlatching and tipping cam sections. The tipping cam section imparts a constant angular acceleration of about 20 radians/sec..sup.2 to the tray during positive tipping. Such angular acceleration produces a maximum tangential acceleration for any article on the tray, approximately equal to or less than the acceleration of a free-falling body. An improved tray latch or index plate has an inclined cam resisting rebound of the tray after initial tipping. Integral shock absorbers disperse impact forces in tray tip-up apparatus and resist elongation of tip-up mounting pin holes. Methods are claimed.
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