EP0261511A2
Expired / Lapsed
EP
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Elastic rotatable member and fixing apparatus using same
Assignee: Ist KK
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Filing: 1987-09-10
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Granted: —
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Expires: 2007-09-10
Abstract
Abstract An elastic rotatable member (1) conveniently usable as an image fixing member has a base member, a first primer layer (3), an elastic layer (4), a second primer layer (5) and a resin layer (6) in the order named. The first primer layer (3) has a thermal conductivity higher than that of the second primer layer (5). Using the elastic rotatable member (1), the sheet conveying property, releasability, wear resistance and durability are improved.
Inventors
- 👤 Masaaki Sakurai
- 👤 Iichiro Yamamoto
- 👤 Masahiro Goto
- 👤 Tsukasa Kuge
- 👤 Michio Shigenobu
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 15:51
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2053; G03G15/2057; G03G15/2017; G03G15/2025; G03G21/00; G03G21/0005; G03G21/0058
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
69 words
An elastic rotatable member, comprising: a base member; an elastic material layer outside said basic layer; a first primer layer between said base member and said elastic material layer; a resin layer outside said elastic layer; and a second primer layer between said elastic material layer and said resin layer; wherein said first primer layer has a thermal conductivity which is larger than that of said second primer layer.
Claim 2
Dependent Claim
69 words
An elastic rotatable member, comprising: a base member; an elastic material layer outside said basic layer; a first primer layer between said base member and said elastic material layer; a resin layer outside said elastic layer; and a second primer layer between said elastic material layer and said resin layer; wherein said first primer layer has a thermal conductivity which is larger than that of said second primer layer.
Claim 3
Dependent Claim
15 words
A member according to Claim 1, wherein said elastic material layer is of silicone rubber.
Claim 4
Dependent Claim
16 words
A member according to Claim 2, wherein said first primer layer is of a silicone primer.
Claim 5
Dependent Claim
15 words
A member according to Claim 2, wherein said resin layer is of a fluorine resin.
Claim 6
Dependent Claim
18 words
A member according to Claim 4, wherein said second primer layer is of a silicone or fluorine primer.
Claim 7
Dependent Claim
21 words
A member according to Claim 4, wherein said resin layer is of PFA resin (tetrafluoroethyleneperfluoroalkoxyethylene copolymer resin) PTFE resin (tetrafluoroethylene resin).
Claim 8
Dependent Claim
41 words
A member according to Claim 1, wherein said elastic material layer is of an elastic material having a relatively high thermal conductivity, and the elastic material layer has a thermal conductivity which is higher than that of the first primer layer.
Claim 9
Dependent Claim
22 words
A member according to Claim 1, wherein said elastic rotatable member is an image fixing rotatable member for fixing an unfixed image.
Claim 10
Dependent Claim
45 words
A member according to Claim 1, wherein said resin layer is formed, after unsintered fluorine resin material is applied on the second primer layer, by heating and sintering from outside at a temperature not lower than a crystal melting point of the fluorine resin material.
Claim 11
Dependent Claim
28 words
A member according to Claim 9, wherein the fluorine resin material applied on said second primer layer is of a type wherein the fluorine resin material is dispersed.
Claim 12
Dependent Claim
113 words
An image fixing apparatus, comprising: first and second rotatable members press-contacted to each other to form a nip to which an image bearing member supporting an unfixed image is passed through, during which the image is fixed; wherein at least one of said first and second rotatable members comprising: a base member; an elastic material layer outside said basic layer; a first primer layer between said base member and said elastic material layer; a resin layer outside said elastic layer; and a second primer layer between said elastic material layer and said resin layer; wherein said first primer layer has a thermal conductivity which is larger than that of said second primer layer.
Claim 13
Dependent Claim
113 words
An image fixing apparatus, comprising: first and second rotatable members press-contacted to each other to form a nip to which an image bearing member supporting an unfixed image is passed through, during which the image is fixed; wherein at least one of said first and second rotatable members comprising: a base member; an elastic material layer outside said basic layer; a first primer layer between said base member and said elastic material layer; a resin layer outside said elastic layer; and a second primer layer between said elastic material layer and said resin layer; wherein said first primer layer has a thermal conductivity which is larger than that of said second primer layer.
Claim 14
Dependent Claim
15 words
An apparatus according to Claim 11, wherein said elastic material layer is of silicone rubber.
Claim 15
Dependent Claim
16 words
An apparatus according to Claim 12, wherein said first primer layer is of a silicone primer.
Claim 16
Dependent Claim
15 words
An apparatus according to Claim 12, wherein said resin layer is of a fluorine resin.
Claim 17
Dependent Claim
18 words
An apparatus according to Claim 14, wherein said second primer layer is of a silicone or fluorine primer.
Claim 18
Dependent Claim
21 words
An apparatus according to Claim 14, wherein said resin layer is of PFA resin (tetrafluoroethyleneperfluoroalkoxyethylene copolymer resin) PTFE resin (tetrafluoroethylene resin).
Claim 19
Dependent Claim
41 words
An apparatus according to Claim 11, wherein said elastic material layer is of an elastic material having a relatively high thermal conductivity, and the elastic material layer has a thermal conductivity which is higher than that of the first primer layer.
Claim 20
Dependent Claim
45 words
An apparatus according to Claim 11, wherein said resin layer is formed, after unsintered fluorine resin material is applied on the second primer layer, by heating and sintering from outside at a temperature not lower than a crystal melting point of the fluorine resin material.
Claim 21
Dependent Claim
28 words
An apparatus according to Claim 19, wherein the fluorine resin material applied on said second primer layer is of a type wherein the fluorine resin material is dispersed.
Claim 22
Dependent Claim
31 words
An apparatus according to Claim 11, wherein said at least one of the rotatable members is adapted to contacting directly to the unfixed image and is provided with heating means therein.
References Cited (Backward Citations)
No citation records indexed.
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