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US 10,138,081 B2Granted
Paper feeding roller with pattern
AssigneeKiana Analytics Inc.
InventorsKiichiro Shimosaka, Shuichi Morikawa
Life of this patent
Estimating the term…
Abstract
A feeding roller for a document conveying apparatus includes a plurality of groove portions arranged with a regular interval in a width direction of the feeding roller on a surface of the feeding roller, and a projection portion provided between each pair of adjacent groove portions to scrape off paper particles on the external peripheral. The projection portion has a regular pattern extending in the width direction of the feeding roller.
Claims5
A feeding roller having an external surface used for a document conveying apparatus comprising:
- a plurality of groove portions arranged with a regular interval in a width direction of the feeding roller and formed into the external surface of the feeding roller;
- and
- a projection portion provided on the external surface between each pair of adjacent groove portions and formed in a single continuous portion from one edge to the other edge of the feeding roller in the width direction that scrapes off paper particles,
- wherein the projection portion has a waveform shape extending in the width direction of the feeding roller and wherein the waveform shape is a trapezoid waveform shape in a view from an outer side in a radius direction of the feeding roller,
- wherein a diameter of the external surface where a groove portion is formed is less than a diameter of the external surface where no groove portion and no projection portion are formed,
- wherein a diameter of the external surface where a projection portion is formed is larger than said diameter of the external surface where no groove portion and no projection potion are formed, and
- wherein each of the plurality of groove portions include a bottom portion formed by the external surface.
4 more elements
Dependencies are inferred from the claim text.