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1.发明公开公开(公告)号：US20240077829A1
公开(公告)日：2024-03-07
申请号：US18500438
申请日：2023-11-02
Applicant: CANON KABUSHIKI KAISHA
Inventor： Noriyuki Komatsu , Tomonori Mori , Teruhiko Sasaki , Makoto Hayashida , Shunsuke Uratani , Yuuki Nakamura , Satoru Motohashi
CPC classification number: G03G21/0058 , G03G21/0011 , G03G21/12 , G03G21/169 , G03G21/1814
Abstract: A foreign substance collection apparatus includes: a frame body; a photosensitive drum; a cleaning roller which collects foreign substances from a surface of the photosensitive drum; a collecting roller which further collects the foreign substances having been collected by the cleaning roller from the cleaning roller; and a scraping member which scrapes off the foreign substances from the collecting roller. A foreign substance collecting portion included in the frame body has, in a posture during use: a first inner bottom surface which is positioned below the scraping member in a gravity direction; an outer bottom surface which is positioned further below the first inner bottom surface; and a connecting surface which intersects the first inner bottom surface and the outer bottom surface and which connects the first inner bottom surface and the outer bottom surface with each other.
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公开(公告)号：US20210286316A1
公开(公告)日：2021-09-16
申请号：US17331758
申请日：2021-05-27
Applicant: CANON KABUSHIKI KAISHA
Inventor： Ryuta Murakami , Tadashi Horikawa , Shunsuke Uratani , Yuichiro Inaba
Abstract: A process cartridge includes a frame having a slit and a recess formed therein at a side of the process cartridge. A photosensitive drum is supported by the frame, with the photosensitive drum being rotatable about an axis thereof, the photosensitive drum including a first end and a second end opposite to the first end. A developing roller is also supported by the frame, the developing roller being rotatable about an axis thereof. A coupling is operatively connected to the photosensitive drum, with the coupling being rotatable about an axis thereof. A helical gear is positioned at the side of the process cartridge, with the helical gear being rotatable about an axis thereof. The helical gear has a plurality of teeth, with at least some of the teeth being exposed teeth that are uncovered by the frame and exposed to outside of the process cartridge.
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公开(公告)号：US20210200137A1
公开(公告)日：2021-07-01
申请号：US17128548
申请日：2020-12-21
Applicant: CANON KABUSHIKI KAISHA
Inventor： Noriyuki Komatsu , Tomonori Mori , Teruhiko Sasaki , Makoto Hayashida , Shunsuke Uratani , Yuuki Nakamura , Satoru Motohashi
IPC: G03G21/00
Abstract: A foreign substance collection apparatus includes: a frame body; a photosensitive drum; a cleaning roller which collects foreign substances from a surface of the photosensitive drum; a collecting roller which further collects the foreign substances having been collected by the cleaning roller from the cleaning roller; and a scraping member which scrapes off the foreign substances from the collecting roller. A foreign substance collecting portion included in the frame body has, in a posture during use: a first inner bottom surface which is positioned below the scraping member in a gravity direction; an outer bottom surface which is positioned further below the first inner bottom surface; and a connecting surface which intersects the first inner bottom surface and the outer bottom surface and which connects the first inner bottom surface and the outer bottom surface with each other.
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公开(公告)号：US20200150581A1
公开(公告)日：2020-05-14
申请号：US16739602
申请日：2020-01-10
Applicant: CANON KABUSHIKI KAISHA
Inventor： Noriyuki Komatsu , Shunsuke Uratani , Toru Oguma
Abstract: A cartridge for a main assembly of an electrophotographic image forming apparatus, wherein the main assembly includes a rotatable driving coupling member including a driving force transmitting portion for transmitting a driving force and a driving side abutment, wherein the cartridge is demountable in a direction substantially perpendicular to a rotational axis of the driving coupling member, includes a rotatable driven coupling member including a driving force receiving portion for receiving the driving force, and a driven side abutment to be abutted by the driving side abutment, the driven coupling member being slidable in a predetermined direction which is substantially parallel with a rotational axis of the receiving coupling member; wherein at least one of the driving side abutment and the driven side abutment is inclined so that the driven coupling member is retractable away from the driving coupling member in the predetermined direction by a force received by driven side abutment from the driving side abutment, and wherein a distance between the rotational axis of the driven coupling member and the abutment of the receiving abutment is not more than a distance between the rotational axis of the driven coupling member and the driving force receiving portion.
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公开(公告)号：US09778613B2
公开(公告)日：2017-10-03
申请号：US15180599
申请日：2016-06-13
Applicant: CANON KABUSHIKI KAISHA
Inventor： Noriyuki Komatsu , Shunsuke Uratani , Toru Oguma
CPC classification number: G03G21/1647 , G03G21/1825 , G03G21/1864
Abstract: A cartridge includes a casing and a photosensitive drum rotatably supported in the casing. A rotatable driven coupling member is provided on an axial end of the photosensitive drum, with the driven coupling member including a driving force receiving portion for receiving a driving force to rotate the photosensitive drum. The driven coupling member is translatable with respect to the casing in a predetermined direction, which is substantially parallel to a rotational axis of the photosensitive drum, by a force received by a driven side abutment portion of the driven coupling member. A distance between the rotational axis of the driven coupling member and the driven side abutment portion is not more than a distance between the rotational axis of the driven coupling member and the driving force receiving portion.
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Patent Agency Ranking
公开(公告)号：US09772598B2
公开(公告)日：2017-09-26
申请号：US14063091
申请日：2013-10-25
Applicant: CANON KABUSHIKI KAISHA
Inventor： Noriyuki Komatsu , Shunsuke Uratani , Toru Oguma
CPC classification number: G03G21/1647 , G03G21/1825 , G03G21/1864
Abstract: A cartridge for a main assembly of an electrophotographic image forming apparatus. The cartridge includes a rotatable driven coupling member including a driving force receiving portion for receiving a driving force and a driven side abutment to be abutted by a driving side abutment. The coupling member is slidable in a predetermined direction that is substantially parallel to a rotational axis of the coupling member.
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公开(公告)号：US12124205B2
公开(公告)日：2024-10-22
申请号：US18500438
申请日：2023-11-02
Applicant: CANON KABUSHIKI KAISHA
Inventor： Noriyuki Komatsu , Tomonori Mori , Teruhiko Sasaki , Makoto Hayashida , Shunsuke Uratani , Yuuki Nakamura , Satoru Motohashi
CPC classification number: G03G21/0058 , G03G21/0011 , G03G21/12 , G03G21/169 , G03G21/1814 , G03G2221/0026 , G03G2221/0047 , G03G2221/0089
Abstract: A foreign substance collection apparatus includes: a frame body; a photosensitive drum; a cleaning roller which collects foreign substances from a surface of the photosensitive drum; a collecting roller which further collects the foreign substances having been collected by the cleaning roller from the cleaning roller; and a scraping member which scrapes off the foreign substances from the collecting roller. A foreign substance collecting portion included in the frame body has, in a posture during use: a first inner bottom surface which is positioned below the scraping member in a gravity direction; an outer bottom surface which is positioned further below the first inner bottom surface; and a connecting surface which intersects the first inner bottom surface and the outer bottom surface and which connects the first inner bottom surface and the outer bottom surface with each other.
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公开(公告)号：US12019392B2
公开(公告)日：2024-06-25
申请号：US18212783
申请日：2023-06-22
Applicant: CANON KABUSHIKI KAISHA
Inventor： Ryuta Murakami , Tadashi Horikawa , Shunsuke Uratani , Yuichiro Inaba
CPC classification number: G03G21/186 , G03G15/757 , G03G21/1647 , G03G21/18 , G03G21/1864 , G03G2221/1657 , G03G2221/183
Abstract: A process cartridge includes a frame and a photosensitive drum supported by the frame, with the photosensitive drum being rotatable about an axis thereof. A coupling is operatively connected to the photosensitive drum such that a driving force can be transferred from the coupling to the photosensitive drum. A developing roller is supported by the frame, with the developing roller being rotatable about an axis thereof. A gear is positioned at a side of the process cartridge, with the gear being rotatable about an axis thereof. The gear has a plurality of teeth, with at least some of the teeth being exposed teeth that are uncovered by the frame and exposed to outside of the process cartridge, and with a tip of at least one of the exposed teeth facing the axis of the photosensitive drum. As measured in the axial direction of the photosensitive drum, the teeth of the gear are shorter than the projection of the coupling.
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公开(公告)号：US11994824B2
公开(公告)日：2024-05-28
申请号：US17963245
申请日：2022-10-11
Applicant: CANON KABUSHIKI KAISHA
Inventor： Noriyuki Komatsu , Shunsuke Uratani , Toru Oguma
CPC classification number: G03G21/1647 , G03G21/1825 , G03G21/1864
Abstract: A cartridge includes a drum flange provided at one end portion of a photosensitive drum. A coupling member is operatively connected to the drum flange, with the coupling member being configured to transmit the driving force to the drum flange. The drum flange has an opening at one end and is closed at another end, and the opening leads to a hollow interior portion. An end portion of a coil spring contacts an interior surface of the closed end of the drum flange, and the drum flange includes a housing and a cover member attached to the housing, with the closed end of the drum flange being a part of the cover member.
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公开(公告)号：US11500324B2
公开(公告)日：2022-11-15
申请号：US17378877
申请日：2021-07-19
Applicant: CANON KABUSHIKI KAISHA
Inventor： Noriyuki Komatsu , Shunsuke Uratani , Toru Oguma
Abstract: A cartridge and a drum unit include a drum flange provided at one end portion of a photosensitive drum and a coupling member operatively connected to the drum flange, with the coupling member being configured to transmit a driving force to the drum flange. A coil spring urges the coupling member. At least a part of the coil spring surrounds at least a part of a shaft portion of the coupling member. An extent of the coil spring that surrounds the shaft portion and an extent of the shaft portion that is surrounded by the coil spring are positioned within a hollow interior portion of the drum flange.
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