Invention Grant
- Patent Title: Image heating apparatus, pressure roller to be used in the image heating apparatus, and manufacturing method for the pressure roller
- Patent Title (中): 图像加热装置,图像加热装置中使用的加压辊,以及加压辊的制造方法
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Application No.: US13128534Application Date: 2009-12-24
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Publication No.: US08626046B2Publication Date: 2014-01-07
- Inventor: Yuko Sekihara , Norio Hashimoto , Hiroaki Sakai , Hiroyuki Sakakibara , Atsushi Iwasaki , Kazuo Kishino , Masaaki Takahashi , Katsuhisa Matsunaka
- Applicant: Yuko Sekihara , Norio Hashimoto , Hiroaki Sakai , Hiroyuki Sakakibara , Atsushi Iwasaki , Kazuo Kishino , Masaaki Takahashi , Katsuhisa Matsunaka
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2008-328015 20081224
- International Application: PCT/JP2009/071860 WO 20091224
- International Announcement: WO2010/074320 WO 20100701
- Main IPC: G03G15/20
- IPC: G03G15/20 ; H05B1/00

Abstract:
The image heating apparatus includes a rubber layer and a resin tube layer on a metal core. The rubber layer includes a solid rubber layer having a thermal conductivity in a thickness direction of 0.16 W/(m·K) or more and 0.40 W/(m·K) or less, and a self-bonded silicone rubber layer that contains a filler of 5 vol % or more and 40 vol % or less, and has a thermal conductivity in an axial direction of 2.5 W/(m·K) or more and a thickness of 0.5 mm or more and 5.0 mm or less, the filler having a length of 0.05 mm or more and 1 mm or less and a thermal conductivity in a length direction of 500 W/(m·K) or more, so that a pressure roller to moderate temperature rise in a non-sheet feeding area when a small sized recording material has undergone sheet feeding can be easily manufactured.
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