Title:
PAPER FEED ROLL
Document Type and Number:
WIPO Patent Application WO/2023/119825
Kind Code:
A1
Abstract:
The present invention provides a paper feed roll that inhibits conveyance failure even during long periods of use by suppressing unevenness in the surface of an elastic material layer when the elastic material layer is composed of two or more phases. A paper feed roll 10 according to the present invention is provided with a shaft body 12 and an elastic material layer 14 which is formed on the outer peripheral surface of the shaft body 12; the elastic material layer 14 comprises a first phase that contains an ethylene propylene diene rubber and a second phase that contains one of an isoprene rubber and a natural rubber; and the area ratio of the second phase is within the range of 30% to 70% in an any given 2.5 μm × 2.5 μm square area of the elastic material layer 14.
Inventors:
AKIRA NAOKI (JP)
SAKUDA MANABU (JP)
SAKUDA MANABU (JP)
Application Number:
PCT/JP2022/039099
Publication Date:
June 29, 2023
Filing Date:
October 20, 2022
Export Citation:
Assignee:
SUMITOMO RIKO CO LTD (JP)
International Classes:
B65H5/06; B65H3/06; F16C13/00
Domestic Patent References:
| WO2021020495A1 | 2021-02-04 |
Foreign References:
| JP2013091557A | 2013-05-16 | |||
| JP2011116480A | 2011-06-16 | |||
| JP2020002272A | 2020-01-09 |
Attorney, Agent or Firm:
YAMADA, Kazuhiro (JP)
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