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US 10,370,215 B2Granted
Nip roller and method of manufacturing film roll body
AssigneeToray Industries, Inc.
InventorsTakashi Ichinomiya, Nobuhiro Naito, Naohiro Takashima, Jeffrey Stephen L'Heureux
Life of this patent
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Abstract
A nip roller includes a core material having a surface coated with rubber. The nip roller having a support length L1 of 5 m or longer. The rubber surface has a hardness H (deg) equal to or lower than 65 deg as measured by a JIS K6253 Type A durometer (A type). Mass W (kg) of the nip roller and second moment of area I1 (m4) and the Young's modulus E1 (Pa) of the core material satisfy E1I1/W≥80000.
Claims7
A nip roller comprising
- a core material having a surface coated with rubber, the nip roller having a support length L1 of 5 m or longer, wherein
- the rubber coating the surface has a hardness H (deg) equal to or lower than 65 deg as measured by a JIS K6253 Type A durometer (A type), and
- mass W (kg) of the nip roller and second moment of area I1 (m4) and Young's modulus E1 (Pa) of the core material satisfy a mathematical expression (1) below:
- E1I1/W≥80000 (1).
1 more element
A method of manufacturing a film roll body, comprising
- conveying a film by a plurality of conveyance rollers and winding the film into a film roll body, wherein
- a nip roller is provided in proximity to the film coming into contact with one or more of the conveyance rollers, the nip roller is configured to squeeze the film with the conveyance roller(s),
- the nip roller includes a core material having a surface coated with rubber, the nip roller having a support length L1 of 5 m or longer,
- the rubber surface has a hardness H (deg) equal to or lower than 65 deg as measured by a JIS K6253 Type A durometer (A type), and
- mass W (kg) of the nip roller and second moment of area I1 (m4) and Young's modulus E1 (Pa) of the core material satisfy a mathematical expression (1) below:
- E1I1/W≥80000 (1).
3 more elements
Dependencies are inferred from the claim text.