EP3908885B1 - Rotating body, member to be inserted with shaft, retaining member, and apparatus - Google Patents

Rotating body, member to be inserted with shaft, retaining member, and apparatus Download PDF

Info

Publication number
EP3908885B1
EP3908885B1 EP19835848.3A EP19835848A EP3908885B1 EP 3908885 B1 EP3908885 B1 EP 3908885B1 EP 19835848 A EP19835848 A EP 19835848A EP 3908885 B1 EP3908885 B1 EP 3908885B1
Authority
EP
European Patent Office
Prior art keywords
rotating body
shaft
roller
hook
holding portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19835848.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3908885A1 (en
Inventor
Makoto Saitou
Naoki Okazaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority claimed from PCT/JP2019/049888 external-priority patent/WO2020145077A1/en
Publication of EP3908885A1 publication Critical patent/EP3908885A1/en
Application granted granted Critical
Publication of EP3908885B1 publication Critical patent/EP3908885B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/1642—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements for connecting the different parts of the apparatus
    • G03G21/1647—Mechanical connection means
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6529—Transporting
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
    • G03G2221/1651—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for connecting the different parts
    • G03G2221/1654—Locks and means for positioning or alignment

Definitions

  • Embodiments of the present invention relate to a rotating body, a member to be inserted with a shaft, a retaining member, and an apparatus.
  • a rotating body may be detachably mounted on the outer periphery of a rotating shaft to enable replacement due to deterioration over time.
  • roller member in which a rotation shaft is inserted into an insertion hole of a roller portion and the roller portion is detachably mounted on the outer periphery of the rotation shaft.
  • a recess is provided in a portion of the rotation shaft that extends out from one end side of the roller portion to the other end side of the roller portion through the insertion hole of the roller portion.
  • a snap fit portion that elastically deforms extends out from the other end side of the roller portion outward in the axial direction.
  • An engagement convex portion that engages the recess is provided in the snap fit portion.
  • the present invention has been made in view of the above-described problem, and an object of the present invention is to enhance the workability of the attachment and detachment operations of the rotating body with respect to the shaft.
  • the workability can be enhanced of attachment and detachment operations of the rotating body with respect to the shaft.
  • Fig. 1 is a perspective view of a rotating member according to the first embodiment in which a shaft is inserted into a rotating body.
  • Fig. 2 is an exploded perspective view of the rotating member.
  • Fig. 3 is a perspective view of the rotating body that is a member to be inserted with the shaft of the rotating member.
  • Fig. 4 is a side view of the rotating member.
  • Fig. 5 is a cross-sectional view of the rotating member.
  • Fig. 6 is a front view of the rotating member.
  • Figs. 7A and 7B are enlarged views of an engagement portion between a recess and hooks of the rotating member.
  • a rotating member 1 includes a rotating body 2 and a shaft 3 inserted into the rotating body 2.
  • the rotating body 2 includes a roller holding portion 12, a roller portion 13, and a holder portion 14.
  • the roller holding portion 12 is a hollow member into which the shaft 3 is inserted.
  • the roller portion 13 is formed of rubber that is an outer peripheral member that is press-fitted into the hollow member.
  • the holder portion 14 includes a holding portion and is a retaining member according to an embodiment of the present invention.
  • the rotating body 2 is held at an end of the shaft 3 by a stopper portion 33 of the shaft 3 and the holder portion 14.
  • the holder portion 14 includes an attachment portion 41 and a snap fit portion 43.
  • the attachment portion 41 is fixed to a surface of the roller holding portion 12 by adhesion, heat caulking, ultrasonic welding, or the like.
  • the snap fit portion 43 is a holding portion (a retaining portion) that is rotatably held with respect to the attachment portion 41 via a hinge 42.
  • the snap fit portion 43 has two hooks 44 that can be elastically deformed in the radial direction of the shaft 3 and can be engaged with a recess 31, which is formed at the end of the shaft 3, from the radial direction of the shaft 3.
  • the hooks 44 have a claw shape.
  • the hooks 44 of the snap fit portion 43 are hooked on the recess 31 of the shaft 3 to hold the rotating body 2 at the end of the shaft 3.
  • the snap fit portion 43 is rotatably held with respect to the attachment portion 41 (an end of the rotating body 2) via the hinge 42 so that the hooks 44 move over a wall portion 32 on the outer side from the recess 31 in the axial direction and move outward in the axial direction.
  • the wall portion 32 has a larger diameter than the recess 31 and is a convex portion protruding beyond the recess 31 in the radial direction of the shaft 3.
  • the snap fit portion 43 is provided with a knob 45 as an operation portion on the opposite side of the hinge 42 serving as a rotation fulcrum, with the hooks 44 interposed between the hinge 42 and the knob 45.
  • the knob 45 is formed obliquely in a direction away from the end face of the rotating body 2. Moreover, the knob 45 may be different in color from other parts, thus allowing the operation method to be indicated in an easy-to-understand manner for the user.
  • the coloring method may be performed by printing, decal pasting, two-color molding, or the like.
  • the attachment portion 41 is provided with a hook 46 that is a locking portion on the opposite side of the hinge 42.
  • a locking hole portion 47 to be locked by the hook 46 is provided in the vicinity of the knob 45 in the snap fit portion 43.
  • the roller holding portion 12 of the rotating body 2 is provided with projections 39 to position the holder portion 14 in the radial direction.
  • the attachment portion 41 of the holder portion 14 is provided with a plurality of holes 49 into which the projections 39 of the roller holding portion 12 are fitted.
  • the attachment portion 41 has holes that are different in hole diameters and distance between the holes, thus allowing the attachment portion 41 to be attached to various types of the roller holding portions 12 while being positioned.
  • FIGS. 8A and 8B are cross-sectional views of a process of inserting the shaft into the rotating body.
  • the rotating body 2 is fitted into the end of the shaft 3 and the rotating body 2 is relatively pushed in a direction indicated by arrow D1 so that the hooks 44 of the snap fit portion 43 of the holder portion 14 contact an end face of the shaft 3.
  • the rotating body 2 is pushed into the shaft 3 with the snap fit portion 43 is locked to the hook 46 (in a closed state), thus causing the hooks 44 to be hooked to the recess 31.
  • the rotating body 2 is pushed into the shaft 3 with the snap fit portion 43 being open, he snap fit portion 43 is closed, thus also causing the hooks 44 to be hooked on the recess 31.
  • Fig. 9 is a side view of the operation in removing the rotating body 2 from the shaft 3 in the present embodiment.
  • the rotating body 2 can be pulled out from the shaft 3 in the axial direction.
  • the knob 45 since the knob 45 is inclined in a direction away from the end face of the rotating body 2, the knob 45 can be easily operated.
  • the snap fit portion 43 when the snap fit portion 43 is rotated in a direction in which the hook 44 moves over the wall portion 32 on the outer side of the recess 31 in the axial direction, the snap fit portion 43 and the shaft 3 are disengaged, thus enhancing the operability and workability in removing the rotating body 2 from the shaft 3.
  • Fig. 10 is a front view of the relative positions of the hooks and the axis of the shaft.
  • Fig. 11 is a cross-sectional view of a bending moment generated by an axial force acting on the hooks.
  • Fig. 12 is an illustration of the force acting on the snap fit portion when the rotating body is about to come off the shaft.
  • the snap fit portion 43 has the hooks 44 at positions at which a distance L1 from the hinge 42 serving as the rotation fulcrum to a center P1 of each hook 44 is longer than a distance L0 from the hinge 42 to an axis P0 of the shaft 3 (L1 > L0). That is, each hook 44 is disposed at a position closer to the knob 45 than the hinge 42.
  • each hook 44 includes a first portion 44A and a second portion 44B.
  • the first portion 44A extends across the wall portion 32 from the outer side in the axial direction of the shaft 3 toward the inner side (from the right side to the left side in Fig. 11 ) in a state in which the rotating body 2 is mounted on the shaft 3.
  • the second portion 44B rises inward in the radial direction of the shaft 3 from the first portion 44A on the side of the recess 31 with respect to the wall portion 32.
  • a tip of the second portion 44B enters the recess 31 and engages with the recess 31.
  • the inner peripheral surface 44a of the first portion 44A of the hook 44 that faces the wall portion 32 is a curved surface centered on the center P1. Since the center P1 is offset upward from the center P0 of the shaft 3, the distance from the center P1 of the hook 44 to the outer periphery of the wall portion 32 decreases upward in Fig. 10 .
  • a gap g2 on a knob side of the first portion 44A of the hook 44 which is a side closer to the knob 45 than the hinge 42, is wider than a gap g1 on a hinge side of the first portion 44A of the hook 44, which is a side closer to the hinge 42 than the knob 45 (g2 > g1).
  • the magnitude of the bending moment M increases as the gap g between the hook 44 of the snap fit portion 43 and the wall portion 32 of the shaft 3 increases.
  • the hook 44 is more easily deformed.
  • the gap g between the hook 44 of the snap fit portion 43 and the wall portion 32 of the shaft 3 is narrow, the hook 44 is less easily deformed.
  • the hook 44 is less easily deformed. Since a larger force is needed for the second portion 44B to move over the wall portion 32, the rotating body 2 less easily comes off.
  • the hook 44 is easily deformed, thus reducing the axial force needed for the second portion 44B to move over the wall portion 32. Therefore, the operation force of the knob 45 can be reduced and the snap fit portion 43 can be easily removed.
  • the force F acting when the rotating body 2 is about to come off the shaft 3 is transmitted to the snap fit portion 43 via the hinge 42. Accordingly, on the side of the hinge 42, the force needed for the rotating body 2 to come off the shaft 3 increases, thus preventing the rotating body 2 from coming off the shaft 3.
  • the attachment portion 41 is provided separately from the roller holding portion 12 so that the snap fit portion (holding portion, retaining portion) can be rotated using the hinge.
  • the snap fit portion (holding portion, retaining portion) is directly provided on the roller holding portion 12 or the rotating body 2 so as to be rotatable, the attachment portion can be obviated.
  • a support shaft holding portion may be formed on the rotating body or a constituent member of the rotating body. In such a case, the snap fit portion can be rotatably held by a support shaft attached to the support shaft holding portion.
  • FIG. 13 is a schematic view of an overall configuration of the image forming apparatus according to an embodiment of the present invention.
  • Fig. 14 is a schematic view of an image forming unit of the image forming apparatus.
  • Fig. 15 is a schematic view of an intermediate transfer unit of the image forming apparatus.
  • An image forming apparatus includes an intermediate transfer belt unit 115 in the middle of an apparatus body 100.
  • An image forming unit 106 including one process cartridge corresponding to black color (black) is detachably attached so as to face an intermediate transfer belt 108 of the intermediate transfer belt unit 115.
  • the image forming unit 106 includes, for example, a photoconductive drum 101 as an image bearer, a charging unit 104 disposed around the photoconductive drum 101, a developing unit 105, a cleaning unit 102, a charge eliminating unit, and the like.
  • an image forming process including a charging process, an exposure process, a developing process, a transfer process, and a cleaning process is performed on the photoconductive drum 101, an image (toner image) is formed on the photoconductive drum 101.
  • the photoconductive drum 101 is driven by a drive motor to rotate in a counterclockwise direction indicated by arrow R1 in Fig. 14 .
  • a surface of the photoconductive drum 101 is uniformly charged at the position of the charging unit 104 (charging process).
  • the charging unit 104 may be either a contact charging type or a non-contact charging type. Thereafter, the surface of the photoconductive drum 101 reaches an irradiation position of a laser light 171 emitted from an exposure unit 107, and an electrostatic latent image is formed by exposure scanning at the irradiation position (exposure process).
  • the surface of the photoconductive drum 101 reaches a position facing the developing unit 105 and toner is supplied from a developing roller 151 at the position facing the developing unit 105.
  • the electrostatic latent image is developed and visualized as a toner image (development process).
  • the surface of the photoconductive drum 101 reaches a position at which the intermediate transfer belt 108 and a primary transfer roller 109 face each other, and the toner image on the photoconductive drum 101 is transferred onto the intermediate transfer belt 108 at the position at which the intermediate transfer belt 108 and the primary transfer roller 109 face each other (primary transfer process). At this time, a slight amount of untransferred toner remains on the photoconductive drum 101.
  • the surface of the photoconductive drum 101 reaches a position facing the cleaning unit 102, and untransferred toner remaining on the photoconductive drum 101 at the position facing the cleaning unit 102 is collected into the cleaning unit 102 by a cleaning blade 102a (cleaning process).
  • the surface of the photoconductive drum 101 reaches a position facing the charge eliminating unit, and a residual potential on the photoconductive drum 101 is removed at the position facing the charge eliminating unit.
  • the intermediate transfer belt unit 115 includes an intermediate transfer belt 108.
  • the intermediate transfer belt 108 is stretched and supported by the primary transfer roller 109, a driving roller 112A, a secondary transfer counter roller 112B, three tension rollers 112C to 112E, a correction roller 113, an outer-peripheral-side tension roller 111, and a cleaning counter roller 114.
  • the intermediate transfer belt 108 rotates around by the rotational driving of the driving roller 112A.
  • the intermediate transfer belt unit 115 includes, for example, a detection unit 180 and an intermediate transfer cleaning unit 110.
  • the intermediate transfer belt 108 travels in a direction indicated by arrow R2, and the toner image on the photoconductive drum 101 is primarily transferred at the position of a primary transfer nip of the primary transfer roller 109.
  • the intermediate transfer belt 108 onto which the toner image has been primarily transferred reaches a position facing a secondary transfer roller 119 as a secondary transfer member.
  • the secondary transfer counter roller 112B sandwiches the intermediate transfer belt 108 with the secondary transfer roller 119 to form a secondary transfer nip.
  • the toner image formed on the intermediate transfer belt 108 is transferred onto a sheet material P, such as transfer sheet of paper, conveyed to the position of the secondary transfer nip.
  • a sheet material P such as transfer sheet of paper
  • the sheet material P is fed by a feeding device 200 from a sheet feeding unit 126 disposed in a lower portion of the apparatus body 100 and is conveyed through a registration roller pair 128 and the like.
  • a plurality of sheet materials P such as transfer sheets of paper, is stored in the sheet feeding unit 126 in a stacked manner. An uppermost sheet material P is fed toward the registration roller pair 128 by the feeding device 200.
  • the sheet material P conveyed to the registration roller pair 128 temporarily stops at a position of a roller nip of the registration roller pair 128 that has been stopped rotating.
  • the registration roller pair 128 is rotated so that the sheet material P is conveyed to the secondary transfer nip in synchronization with the image on the intermediate transfer belt 108.
  • a desired image is transferred on the sheet material P at the secondary transfer nip.
  • the sheet material P on which the image has been transferred at the secondary transfer nip is conveyed to the fixing unit 120.
  • the fixing unit 120 the image transferred on the surface of the sheet material P is fixed on the sheet material P under heat and pressure generated by a fixing roller and a pressure roller.
  • the sheet material P is ejected out of the apparatus body 100 by an ejection roller pair 130 and sequentially stacked on a stacker 131.
  • Fig. 16 is a schematic view of an example of the feeding device.
  • the feeding device 200 includes a pickup roller 201 that picks up the sheet material P.
  • a feed roller 202 and a separation roller 203 that is in pressure contact with the feed roller 202 are disposed downstream from the pickup roller 201 in a sheet feed direction in which the sheet material P is fed.
  • a conveyance roller pair 215 is disposed downstream from the feed roller 202 in the sheet feed direction.
  • Each of the pickup roller 201, the feed roller 202, and the separation roller 203 is a rotating body or a member to be inserted with a shaft.
  • a fixed shaft 205 is inserted into the pickup roller 201.
  • a shaft 206 serving as a drive shaft is inserted into the feed roller 202.
  • a shaft 207 serving as a drive shaft is inserted into the separation roller 203.
  • the pickup roller 201 sends out the sheet material P placed on a tray of the sheet feeding unit 126 to a downstream side in the sheet feed direction.
  • the one or more sheet materials P fed by the pickup roller 201 reach between the feed roller 202 and the separation roller 203.
  • the sheet is separated one by one by the feed roller 202 and the separation roller 203 and sent to a conveyance path 224 formed by a conveyance guide 222 and a housing 220.
  • the feed roller 202 is driven to rotate in a direction of feeding the sheet material P downstream, while the separation roller 203 is rotated via a torque limiter in a direction opposite the direction of rotation of the feed roller 202, in other words, a direction of returning the sheet material P upstream.
  • the feed roller 202 When no sheet material P is between the feed roller 202 and the separation roller 203, the feed roller 202 is driven to rotate in the direction of feeding the sheet material P downstream. A driving force is transmitted from the feed roller 202 to the separation roller 203, and the separation roller 203 rotates with the feed roller 202 by the torque limiter.
  • the sheet material P is sent to the downstream side by the rotational drive of the feed roller 202.
  • the driving force is transmitted from the feed roller 202 to the separation roller 203 via one sheet material P, and the separation roller 203 rotates with the feed roller 202 by the torque limiter.
  • the plurality of sheet materials P can be sent one by one without being sent together.
  • Fig. 17 is a perspective view of a roller section in installation of the pickup roller, the feed roller, and the separation roller to the shafts.
  • Fig. 18 is a perspective view of the roller section in a state in which the pickup roller, the feed roller, and the separation roller are mounted on the shafts.
  • Fig. 19 is a perspective view of the roller section in removal of the pickup roller, the feed roller, and the separation roller from the shafts.
  • each of the pickup roller 201, the feed roller 202, and the separation roller 203 is a rotating body or a member to be inserted with a shaft.
  • Each of the pickup roller 201, the feed roller 202, and the separation roller 203 has an end face with the holder portion 14 including the snap fit portion 43 and so on of the first embodiment.
  • the pickup roller 201 is fitted on the shaft 205 and is held at an end portion of the shaft 205 by the snap fit portion 43 of the holder portion 14 as illustrated in Fig. 18 .
  • the feed roller 202 is fitted on the shaft 206 and the separation roller 203 is fitted on the shaft 207 and is held at an end portion of the shaft 207 and is held at an end portion of the shaft 207 by the snap fit portion 43 of the holder portion 14 as illustrated in Fig. 18 .
  • the snap fit portion 43 is operated to disengage the recess 31 and the hook 44 and the pickup roller 201 is pulled out from the shaft 205.
  • the new pickup roller 201 is fitted on the shaft 205 and is held at an end portion of the shaft 205 by the snap fit portion 43 of the holder portion 14 as illustrated in Fig. 18 .
  • the same operation can be performed when the feed roller 202 and the separation roller 203 are replaced.
  • the rotating body may be, for example, a roller (feed roller) related to sheet feeding such as each roller of the feeding device, as well as a conveyance roller, a discharge roller, a fixing roller, a transfer roller, a charging roller, a coating roller, and a roller supporting a belt.
  • a roller feed roller
  • a conveyance roller a conveyance roller
  • a discharge roller a fixing roller
  • a transfer roller a charging roller
  • a coating roller a roller supporting a belt.
  • an embodiment of the present invention can be applied to the guide member as a member to be inserted with the shaft.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrophotography Configuration And Component (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Fixing For Electrophotography (AREA)
EP19835848.3A 2019-01-10 2019-12-19 Rotating body, member to be inserted with shaft, retaining member, and apparatus Active EP3908885B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2019002269 2019-01-10
JP2019003914A JP7247591B2 (ja) 2019-01-10 2019-01-12 回転体、軸に装着する部材、抜け止め部材、装置
PCT/JP2019/049888 WO2020145077A1 (en) 2019-01-10 2019-12-19 Rotating body, member to be inserted with shaft, retaining member, and apparatus

Publications (2)

Publication Number Publication Date
EP3908885A1 EP3908885A1 (en) 2021-11-17
EP3908885B1 true EP3908885B1 (en) 2024-03-27

Family

ID=71666942

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19835848.3A Active EP3908885B1 (en) 2019-01-10 2019-12-19 Rotating body, member to be inserted with shaft, retaining member, and apparatus

Country Status (3)

Country Link
EP (1) EP3908885B1 (ja)
JP (1) JP7247591B2 (ja)
CN (1) CN113302563A (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3264185A1 (en) * 2015-02-27 2018-01-03 C/o Canon Kabushiki Kaisha Drum unit, cartridge and coupling member

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06201020A (ja) * 1992-12-28 1994-07-19 Mita Ind Co Ltd 歯車の軸からの抜止め構造
JPH08159166A (ja) * 1994-12-02 1996-06-18 Nippon Columbia Co Ltd 回転部品
JPH08259019A (ja) * 1995-03-17 1996-10-08 Canon Inc シ−ト材給送装置および画像形成装置
JPH09158954A (ja) * 1995-12-11 1997-06-17 Ricoh Co Ltd 回転軸組立構造
JPH09202464A (ja) * 1996-01-26 1997-08-05 Canon Inc 搬送ローラ及び画像形成装置
JP3555328B2 (ja) * 1996-05-24 2004-08-18 セイコーエプソン株式会社 ローラホルダ及びそれを用いたプリンタの紙送り装置
JP3228694B2 (ja) * 1997-03-14 2001-11-12 株式会社東郷製作所 ヒンジ構造
JP3901789B2 (ja) * 1997-03-25 2007-04-04 デルタ工業株式会社 脱着式シートクッションのヒンジ構造
JP3923641B2 (ja) * 1998-02-18 2007-06-06 株式会社リコー 画像形成装置
JP2003013987A (ja) 2001-06-28 2003-01-15 Canon Inc 駆動伝達機構、トナー補給容器及びトナー補給装置
JP2003139221A (ja) * 2001-11-06 2003-05-14 Funai Electric Co Ltd ギア取り付け構造
JP2004032317A (ja) * 2002-06-25 2004-01-29 Canon Electronics Inc 原稿撮像装置
JP2004203509A (ja) * 2002-12-24 2004-07-22 Canon Inc シート給送装置及びこれを備えた画像読取記録装置
KR100453066B1 (ko) * 2002-12-24 2004-10-15 삼성전자주식회사 자동 원고 피딩 장치
JP4271509B2 (ja) * 2003-06-24 2009-06-03 株式会社リコー 回転部材とそれを備えたプロセスカートリッジ及び画像形成装置
JP4543969B2 (ja) 2005-03-04 2010-09-15 村田機械株式会社 ギア取付構造
JP2006251195A (ja) 2005-03-09 2006-09-21 Murata Mach Ltd 帯電装置及び該帯電装置を備えた画像形成装置
KR20070022473A (ko) * 2005-08-22 2007-02-27 삼성전자주식회사 화상형성장치
US7806292B2 (en) * 2006-02-28 2010-10-05 Joseph S Kanfer Towelette dispenser
JP4642067B2 (ja) 2007-12-27 2011-03-02 株式会社ミヤコシ 電子写真印刷機
JP5423569B2 (ja) * 2010-04-30 2014-02-19 ブラザー工業株式会社 シート搬送装置
JP2011248214A (ja) 2010-05-28 2011-12-08 Canon Inc 現像装置及びプロセスカートリッジ
JP2012215195A (ja) * 2011-03-31 2012-11-08 Showa Corp 回転構造体
CN202807937U (zh) * 2012-07-17 2013-03-20 山东新北洋信息技术股份有限公司 进纸机构及具有该进纸机构的薄片类介质处理装置
JP6112390B2 (ja) 2012-12-25 2017-04-12 株式会社リコー 外装カバーおよび画像形成装置
AU2013368335B2 (en) 2012-12-28 2017-02-02 Kraft Foods Group Brands Llc Containers and methods for isolating liquids prior to dispensing
JP6299446B2 (ja) * 2013-07-12 2018-03-28 三菱ケミカル株式会社 軸受部材、端部部材、感光体ドラムユニット、現像ローラユニット、プロセスカートリッジ、中間部材、及び軸受部材の本体
JP2015034565A (ja) * 2013-08-07 2015-02-19 キヤノンファインテック株式会社 回転力伝達装置と現像剤容器収容装置
JP5943009B2 (ja) 2014-01-27 2016-06-29 コニカミノルタ株式会社 ローラー部材、シート給送装置及び画像形成装置
JP6296949B2 (ja) 2014-09-04 2018-03-20 株式会社沖データ 嵌合構造、現像剤収容体及び画像形成装置
KR102406119B1 (ko) 2016-12-07 2022-06-07 현대자동차 주식회사 어태치먼트, 및 이를 구비한 운반 장치

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3264185A1 (en) * 2015-02-27 2018-01-03 C/o Canon Kabushiki Kaisha Drum unit, cartridge and coupling member

Also Published As

Publication number Publication date
JP7247591B2 (ja) 2023-03-29
JP2020112707A (ja) 2020-07-27
CN113302563A (zh) 2021-08-24
EP3908885A1 (en) 2021-11-17

Similar Documents

Publication Publication Date Title
US7509075B2 (en) Gear unit and image forming device
EP3211482A1 (en) Developing cartridge and image forming apparatus
EP2645184B1 (en) Image forming apparatus
US20180039224A1 (en) Waste toner detection mechanism and image forming apparatus
EP3683459A1 (en) Shaft stopper ring and image forming device
CN109597290B (zh) 成像装置
EP3908885B1 (en) Rotating body, member to be inserted with shaft, retaining member, and apparatus
US11402793B2 (en) Rotating body, member to be inserted with shaft, retaining member, and apparatus
US20150210489A1 (en) Roller member, sheet feeder and image forming apparatus
JP7488511B2 (ja) 回転体、軸が挿入される部材、抜け止め部材、装置
US10649400B2 (en) Image forming apparatus with features that suppress deformation of door caused by counterforce from cartridge
JP3984978B2 (ja) プロセスカートリッジ及び電子写真画像形成装置
US11440756B2 (en) Sheet feeding apparatus and image forming apparatus
EP2011752B1 (en) Image Forming Apparatus
US8768236B2 (en) Duplex image forming apparatus
CN107797430B (zh) 图像形成装置
US8218999B2 (en) Winding member, cartridge, and cartridge assembling method
US10444701B2 (en) Image forming apparatus
JP2012126481A (ja) シート排出装置及び画像形成装置
JP2008110831A (ja) ロール支持構造、給紙カセット、及びシート搬送装置
EP4063969B1 (en) Drive device and image forming apparatus incorporating the drive device
US20180143579A1 (en) Driving device and image forming apparatus
PH12017000055A1 (en) Developing cartridge and image forming apparatus
JP2005227318A (ja) プロセスカートリッジ及び画像形成装置
JP2022064142A (ja) 回転体、軸が挿入される部材、抜け止め部材および装置

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210527

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20231218

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20240131

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602019049154

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D