Roller drive unit
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 17, 1991
Grant Date -
N/A
app pub date -
Apr 3, 1990
filing date -
Apr 6, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A roller drive unit includes a frame, a drive shaft rotatably mounted in the frame, and a gear mounted on the drive shaft for engaging a drive motor. A pivot support is mounted on the drive shaft and is pivotable from lower rest position to an upper working position. A drive roll is rotatably mounted on the pivot support, and an internal gear is attached to the drive roll. A drive gear is mounted on the drive shaft, and an intermediate gear is rotatably mounted in the pivot support and is engaged between the drive gear and the internal gear. A spring is connected for biasing the pivot support to the lower rest position.
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