Concrete finishing machine with vibrating finishing rollers
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United States of America Patent
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-
Feb 19, 1991
Grant Date -
N/A
app pub date -
Apr 7, 1989
filing date -
Apr 7, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A concrete finishing machine includes a surfacing unit having one or more finishing rollers supported on the surfacing unit carriage by a finishing roller vibrating assembly which includes a frame supporting the finishing rollers at one end and on which is mounted a pair of vibrator units producing vibrational forces which are applied to the finishing rollers through the frame, the vibrator units being mounted on a common beam and spaced apart laterally of one another whereby horizontal forces are cancelled and only vertical amplitude vibrational forces are applied to the finishing rollers.
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