公开(公告)号：US20240295845A1

公开(公告)日：2024-09-05

申请号：US18661812

申请日：2024-05-13

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tatsuo Yasui ,  Junichi Moteki ,  Akiyoshi Shinagawa ,  Takuma Tadomi ,  Ikuo Nakamoto ,  Toru Katsumi ,  Takahiro Ohnishi

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2064 ,  G03G2215/00679 ,  G03G2215/2038

Abstract: A fixing unit includes an endless belt, a heating unit configured to heat the belt, a pressure rotary member configured to form a fixing nip portion that nips and conveys a recording material with the belt, a pad configured to press the belt toward the pressure rotary member, a sliding sheet provided on the pad and configured to slide against the belt, a plate-like member configured to fix the sliding sheet to the pad, the sliding sheet being fixed in a manner sandwiched between the plate-like member and the pad, and fixing tools configured to fix the plate-like member at a plurality of positions along a longitudinal direction of the plate-like member. A width of the sliding sheet is wider than a width of the fixing nip portion and narrower than a width of the plate-like member in the longitudinal direction.

公开(公告)号：US11163250B2

公开(公告)日：2021-11-02

申请号：US16600849

申请日：2019-10-14

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tatsuo Yasui ,  Junichi Moteki ,  Akiyoshi Shinagawa ,  Takuma Tadomi ,  Ikuo Nakamoto ,  Toru Katsumi ,  Takahiro Ohnishi

IPC: G03G15/20

Abstract: A fixing unit includes an endless belt, a heating unit configured to heat the belt, a pressure rotary member configured to form a fixing nip portion that nips and conveys a recording material with the belt, a pad configured to press the belt toward the pressure rotary member, a sliding sheet provided on the pad and configured to slide against the belt, a plate-like member configured to fix the sliding sheet to the pad, the sliding sheet being fixed in a manner sandwiched between the plate-like member and the pad, and fixing tools configured to fix the plate-like member at a plurality of positions along a longitudinal direction of the plate-like member. A width of the sliding sheet is wider than a width of the fixing nip portion and narrower than a width of the plate-like member in the longitudinal direction.

公开(公告)号：US11144008B2

公开(公告)日：2021-10-12

申请号：US16704757

申请日：2019-12-05

Applicant: CANON KABUSHIKI KAISHA

Inventor： Hiroto Ito ,  Ikuo Nakamoto ,  Toru Katsumi ,  Masayuki Tamaki ,  Akiyoshi Shinagawa ,  Koichi Kakubari

IPC: G03G21/20 ,  G03G15/20

Abstract: An image heating apparatus including first and second rotatable members, first and second cooling fans, an air blowing port, a shutter member, a shutter controller, and a fan controller. The first cooling fan is provided at a position opposing a first region which is a part of an end portion region of the first rotatable member on one end side. The second cooling fan is provided at a position opposing a second region which is part of the end portion region. The second region is adjacent to the first region with respect to the longitudinal direction. The shutter controller is configured to control a position of the shutter member depending on a width size of a recording material. The fan controller is configured to independently control an operation of the first cooling fan and an operation of the second cooling fan depending on the width size of the recording material.

公开(公告)号：US10802430B2

公开(公告)日：2020-10-13

申请号：US16435871

申请日：2019-06-10

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yasuharu Toratani ,  Toru Katsumi ,  Nobuaki Hara ,  Kengo Koyama ,  Ayano Ogata ,  Masanobu Tanaka

IPC: G03G15/20

Abstract: An image heating apparatus includes a first rotary member, a second rotary member a retaining portion, and a regulating portion. An end portion of the first rotary member abuts against the regulating portion and the regulating portion regulates movement of the first rotary member to the sheet width direction. The regulating portion comprises a curved surface shape having a radius of curvature of 10 mm or greater and 500 mm or smaller and protruding toward the first rotary member. An apex portion of the curved surface shape is, when viewed in the sheet width direction, positioned in an area outside of the retaining portion and on a side of the first rotary member from a tangent of the first rotary member at the nip portion. The apex portion is positioned in an area upstream in the sheet conveyance direction of a straight line that is orthogonal to the tangent.

公开(公告)号：US20220011698A1

公开(公告)日：2022-01-13

申请号：US17487017

申请日：2021-09-28

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tatsuo Yasui ,  Junichi Moteki ,  Akiyoshi Shinagawa ,  Takuma Tadomi ,  Ikuo Nakamoto ,  Toru Katsumi ,  Takahiro Ohnishi

IPC: G03G15/20

Abstract: A fixing unit includes an endless belt, a heating unit configured to heat the belt, a pressure rotary member configured to form a fixing nip portion that nips and conveys a recording material with the belt, a pad configured to press the belt toward the pressure rotary member, a sliding sheet provided on the pad and configured to slide against the belt, a plate-like member configured to fix the sliding sheet to the pad, the sliding sheet being fixed in a manner sandwiched between the plate-like member and the pad, and fixing tools configured to fix the plate-like member at a plurality of positions along a longitudinal direction of the plate-like member. A width of the sliding sheet is wider than a width of the fixing nip portion and narrower than a width of the plate-like member in the longitudinal direction.

公开(公告)号：US12025931B2

公开(公告)日：2024-07-02

申请号：US17487017

申请日：2021-09-28

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tatsuo Yasui ,  Junichi Moteki ,  Akiyoshi Shinagawa ,  Takuma Tadomi ,  Ikuo Nakamoto ,  Toru Katsumi ,  Takahiro Ohnishi

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2064 ,  G03G2215/00679 ,  G03G2215/2038

Abstract: A fixing unit includes an endless belt, a heating unit configured to heat the belt, a pressure rotary member configured to form a fixing nip portion that nips and conveys a recording material with the belt, a pad configured to press the belt toward the pressure rotary member, a sliding sheet provided on the pad and configured to slide against the belt, a plate-like member configured to fix the sliding sheet to the pad, the sliding sheet being fixed in a manner sandwiched between the plate-like member and the pad, and fixing tools configured to fix the plate-like member at a plurality of positions along a longitudinal direction of the plate-like member. A width of the sliding sheet is wider than a width of the fixing nip portion and narrower than a width of the plate-like member in the longitudinal direction.

公开(公告)号：US20190391513A1

公开(公告)日：2019-12-26

申请号：US16435871

申请日：2019-06-10

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yasuharu Toratani ,  Toru Katsumi ,  Nobuaki Hara ,  Kengo Koyama ,  Ayano Ogata ,  Masanobu Tanaka

IPC: G03G15/20

Abstract: An image heating apparatus includes a first rotary member, a second rotary member a retaining portion, and a regulating portion. An end portion of the first rotary member abuts against the regulating portion and the regulating portion regulates movement of the first rotary member to the sheet width direction. The regulating portion comprises a curved surface shape having a radius of curvature of 10 mm or greater and 500 mm or smaller and protruding toward the first rotary member. An apex portion of the curved surface shape is, when viewed in the sheet width direction, positioned in an area outside of the retaining portion and on a side of the first rotary member from a tangent of the first rotary member at the nip portion. The apex portion is positioned in an area upstream in the sheet conveyance direction of a straight line that is orthogonal to the tangent.