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US 2026/0035192 A1Published application
Paper feeding roll
AssigneeSumitomo Riko Company Limited
InventorsShimpei Miyagawa, Daiki Ito
Life of this patent
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Abstract
A paper delivery roll (12) includes: a shaft body (12a) and an elastic body layer (12b) formed on an outer peripheral surface of the shaft body (12a). A convex part (13) having a forward inclined surface (13a) whose inclination increases along a paper passing direction (Y) is provided on the outer peripheral surface of the elastic body layer (12b). An angle (θ1) of the forward inclined surface (13a) is 25° or more and 55° or less. A ratio of a nip area to a product of a nip width and a roll surface length at a load of 500 g is 0.2 or more and 0.6 or less.
Claims7
A paper feeding roll, comprising:
- a shaft body;
- and an elastic body layer, formed on an outer peripheral surface of the shaft body,
- wherein a convex part having a forward inclined surface whose inclination increases along a paper passing direction is provided on the outer peripheral surface of the elastic body layer,
- an angle of the forward inclined surface is 25° or more and 55° or less, and
- a ratio of a nip area to a product of a nip width and a roll surface length at a load of 500 g is 0.2 or more and 0.6 or less.
2 more elements
Dependencies are inferred from the claim text.