US 12,147,179 B2
Fixing device with holding member made of resin
Daigo Matsuura, Tokyo (JP); Yasuharu Toratani, Chiba (JP); Akiyoshi Shinagawa, Saitama (JP); Hiroshi Miyamoto, Saitama (JP); Ayano Ogata, Ibaraki (JP); Hiroki Kawai, Chiba (JP); Masanobu Tanaka, Chiba (JP); Asuna Fukamachi, Chiba (JP); and Misa Kawashima, Chiba (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jan. 30, 2023, as Appl. No. 18/161,164.
Claims priority of application No. 2022-028931 (JP), filed on Feb. 28, 2022.
Prior Publication US 2023/0273554 A1, Aug. 31, 2023
Int. Cl. G03G 15/20 (2006.01)
CPC G03G 15/2053 (2013.01) [G03G 15/2017 (2013.01); G03G 15/2064 (2013.01); G03G 2215/2035 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A fixing device comprising:
an endless belt configured to apply heat to a recording material;
a rotatable pressing member contacting an outer circumferential surface of the belt; and
a sliding member inside of the belt, configured to form a nip portion by nipping and feeding the belt between itself and the rotatable pressing member and to slide on an inner circumferential surface of the belt;
wherein the rotatable pressing member nips and feeds the recording material in the nip portion in cooperation with the belt and fixes a toner image on the recording material by applying heat and pressure,
wherein the sliding member includes a substrate extending in a widthwise direction of the belt,
wherein the substrate is made of metal and includes a plurality of projections projecting toward the rotatable pressing member, and
wherein when a load value applied to the nip portion is defined as W[N], a Young's modulus of the sliding member is defined as E[MPa], a thickness of the sliding member is defined as t[mm], a friction coefficient between the sliding member and the belt is defined as μ, and a length of the siding member with respect to the widthwise direction is defined as L[mm], the sliding member satisfies formulas:

OG Complex Work Unit Math