Sheet feed apparatus, sheet separating member, sheet feed assembly and sheet separating assembly
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United States of America Patent
Stats
-
Apr 5, 2005
Grant Date -
Dec 4, 2003
app pub date -
Mar 26, 2003
filing date -
Apr 8, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sheet feed roller 10 includes a shaft member 12 and an elastomeric layer 14 provided on the outer circumference of the shaft member 12. The shaft member 12 includes a tubular support 16 and a pair of shaft sections 18 extending in the axial direction to define a rotary axis of the shaft member 12. The elastomeric layer 14 is formed of an elastic member separate from the shaft member 12, and attached to the outer circumference 16a to be conformed with the profile of the support 16 of the shaft member 12. The elastomeric layer 14 includes a base 20 and a plurality of micro-structured elements 22, each having a three-dimensionally projected shape, formed on the surface 20a of the base 20. Each of the plurality of micro-structured elements 22 on the elastomeric layer 14 is brought into frictional contact at a distal end thereof with the sheet medium and feed the same as the shaft member rotates.
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