- 专利标题： Fixing device and image forming apparatus incorporating same
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申请号： US15192521申请日： 2016-06-24
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公开(公告)号： US09690242B2公开(公告)日： 2017-06-27
- 发明人: Masahiro Samei , Tomohiko Fujii , Yoshihiro Fukuhata , Tamotsu Ikeda , Minoru Toyoda , Yoshiharu Takahashi , Daisuke Inoue
- 申请人： Masahiro Samei , Tomohiko Fujii , Yoshihiro Fukuhata , Tamotsu Ikeda , Minoru Toyoda , Yoshiharu Takahashi , Daisuke Inoue
- 申请人地址： JP Tokyo
- 专利权人： Ricoh Company, Ltd.
- 当前专利权人： Ricoh Company, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2015-133459 20150702
- 主分类号： G03G15/20
- IPC分类号： G03G15/20
摘要：
A fixing device includes a first rotary body, a second rotary body to contact the first rotary body, and a plain bearing that supports the first rotary body or the second rotary body. One rotary body of the first rotary body and the second rotary body has an outer diameter increasing, while the other rotary body has an outer diameter decreasing, in a curved line from an axial center portion to axial end portions of the first rotary body and the second rotary body at least between the first rotary body and the second rotary body. A recording medium passes between the first rotary body and the second rotary body with a circumferential component of a shear force generated between the first rotary body and the second rotary body by use of the plain bearing being in a range of from 15N to 25N.