发明名称 |
ELASTIC ROLLER AND FIXING DEVICE |
摘要 |
An elastic layer includes a needle-shaped filler and a void and has a porosity of 20 vol % or more and 60 vol % or less. The elastic layer contains a first area and a second area. The first area extends from a surface of the elastic layer opposite to a surface facing the mandrel toward the mandrel and has a thickness of 30% of the thickness of the elastic layer. The second area is a central area in a thickness direction of the elastic layer and has a thickness of 40% of the thickness of the elastic layer. The needle-shaped filler in the second area has an orientation degree of 50% or lower. The needle-shaped filler in the first area has an orientation degree higher than that of the needle-shaped filler in the second area. |
申请公布号 |
US2016018771(A1) |
申请公布日期 |
2016.01.21 |
申请号 |
US201514798230 |
申请日期 |
2015.07.13 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
Arai Yutaka;Suzuki Takeshi;Miura Jun;Takada Shigeaki;Nakayama Toshinori;Akiyama Naoki;Matsuura Daigo;Miyahara Yasuhiro;Asaka Akeshi;Tamura Shuichi;Matsunaka Katsuhisa;Takahashi Shinsuke;Sugimoto Hiroto |
分类号 |
G03G15/20;B25F5/02;F16C13/00 |
主分类号 |
G03G15/20 |
代理机构 |
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代理人 |
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主权项 |
1. An elastic roller comprising:
a mandrel; and an elastic layer provided on the circumferential surface of the mandrel, the elastic layer containing a needle-shaped filler and a shell-less void and having a porosity of 20 vol % or more and 60 vol % or less, the elastic layer containing a first area and a second area,
the first area extending from a surface of the elastic layer opposite to a surface facing the mandrel toward the mandrel and having a thickness of 30% of the thickness of the elastic layer,the second area being a central area in a thickness direction of the elastic layer and having a thickness of 40% of the thickness of the elastic layer, and the needle-shaped filler in the second area having an orientation degree of 50% or lower, and the needle-shaped filler in the first area having an orientation degree higher than that of the needle-shaped filler in the second area. |
地址 |
Tokyo JP |