JP2019179068A - Developer container, developing device, and process cartridge - Google Patents

Developer container, developing device, and process cartridge Download PDF

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JP2019179068A
JP2019179068A JP2018066565A JP2018066565A JP2019179068A JP 2019179068 A JP2019179068 A JP 2019179068A JP 2018066565 A JP2018066565 A JP 2018066565A JP 2018066565 A JP2018066565 A JP 2018066565A JP 2019179068 A JP2019179068 A JP 2019179068A
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developer
developer container
drive transmission
rotating member
longitudinal direction
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頌太 中村
Shota Nakamura
頌太 中村
卓也 川上
Takuya Kawakami
卓也 川上
聡一 石井
Soichi Ishii
聡一 石井
悠 秋葉
Yu Akiba
悠 秋葉
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Canon Inc
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Canon Inc
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Abstract

To provide a developer container with which it is possible to effectively suppress the coagulation of a developer that occurs during transport.SOLUTION: In the longitudinal direction of a developer storage chamber 18a, spaces L1, L2 are formed between an end of a stirring member 23 and inside faces 18g1, 18g2 of the developer storage chamber 18a, in which spaces the stirring member 23 is movable relatively to the developer storage chamber 18a. A conversion mechanism (first engaging part 18m, a second engaging part 18n, a first engaged part 23h, and a second engaged part 23i) is provided which, when the stirring member 23 performs a first motion for moving in the longitudinal direction relative to the developer storage chamber 18a, converts the first motion of the stirring member 23 to a rotational motion to rotate.SELECTED DRAWING: Figure 5

Description

本発明は、複写機、プリンタ等の画像形成装置に設けられる現像剤容器及びこれを備えた現像装置、プロセスカートリッジに関するものである。   The present invention relates to a developer container provided in an image forming apparatus such as a copying machine or a printer, a developing device including the developer container, and a process cartridge.

電子写真画像形成方式(電子写真プロセス)を用いた画像形成装置では、像担持体としての感光体(以下、「感光ドラム」という)を一様に帯電させる。次に、帯電した感光体を選択的に露光することにより、感光ドラムの表面上に静電潜像を形成する。次に、感光ドラムの表面上に形成された静電潜像を、現像剤としてのトナーによりトナー像として顕像化する。そして、感光ドラムの表面上に形成されたトナー像を、記録用紙、プラスチックシート等の記録材に転写し、更に、記録材上に転写されたトナー像に熱や圧力を加えることでトナー像を記録材に定着させることで画像記録を行う。   In an image forming apparatus using an electrophotographic image forming system (electrophotographic process), a photoconductor (hereinafter referred to as “photosensitive drum”) as an image carrier is uniformly charged. Next, an electrostatic latent image is formed on the surface of the photosensitive drum by selectively exposing the charged photosensitive member. Next, the electrostatic latent image formed on the surface of the photosensitive drum is visualized as a toner image with toner as a developer. The toner image formed on the surface of the photosensitive drum is transferred to a recording material such as recording paper or a plastic sheet, and the toner image is further transferred by applying heat or pressure to the toner image transferred onto the recording material. Image recording is performed by fixing on a recording material.

このような画像形成装置では、一般に、各種のプロセス手段のメンテナンスを必要とする。この各種のプロセス手段のメンテナンスを容易にするために、上述のような感光ドラム、帯電手段、現像手段、クリーニング手段等を枠体内にまとめてカートリッジ化し、画像形成装置本体に着脱可能なプロセスカートリッジとしたものが実用化されている。プロセスカートリッジ方式によれば、ユーザビリティ(usability;使い易さ)に優れた画像形成装置を提供することができる。   Such an image forming apparatus generally requires maintenance of various process means. In order to facilitate the maintenance of the various process means, the photosensitive drum, the charging means, the developing means, the cleaning means, and the like as described above are combined into a cartridge to form a cartridge that can be attached to and detached from the image forming apparatus main body. That has been put to practical use. According to the process cartridge system, an image forming apparatus excellent in usability (usability) can be provided.

現像装置は、一般的に、感光ドラムに現像剤を供給する現像手段としての現像剤担持体や、現像剤担持体に現像剤を供給する現像剤供給部材が設けられた現像部と、この現像部に供給する現像剤を収容する現像剤容器とを有する。ここで、現像剤容器から現像部への現像剤の搬送には、回転可能な撹拌部材を用いることが一般的である。   In general, a developing device includes a developer carrying member as a developing unit that supplies a developer to a photosensitive drum, a developing unit provided with a developer supplying member that supplies the developer to the developer carrying member, and the developing unit. And a developer container for containing a developer to be supplied to the section. Here, in order to convey the developer from the developer container to the developing unit, it is general to use a rotatable stirring member.

このような構成では、運搬等の際に現像剤容器内で現像剤が偏って凝集することがある。現像剤が凝集した状態では、撹拌部材の回転負荷が極端に大きくなる恐れがある。そこで、特許文献1では、撹拌部材とは別に、トナー容器の内壁にバネを介在させて揺動板を設け、運搬時の振動で揺動板が揺動することでトナー容器内の現像剤を揺らし、現像剤の凝集を抑制する。   In such a configuration, the developer may be unevenly aggregated in the developer container during transportation or the like. When the developer is agglomerated, the rotational load of the stirring member may become extremely large. Therefore, in Patent Document 1, a swing plate is provided by interposing a spring on the inner wall of the toner container separately from the stirring member, and the developer in the toner container is removed by swinging the swing plate by vibration during transportation. Shake and suppress aggregation of developer.

また、特許文献2では、駆動部材からの駆動力が撹拌部材に伝達されると、撹拌部材を回転軸線方向に駆動部材から離れる側の一方向に移動可能にするとともに、付勢部材により撹拌部材を回転軸線方向に駆動部材に近づく方向に付勢している。この構成では、回転負荷が大きい状態で撹拌部材を駆動すると、撹拌部材は回転せず回転軸線方向に揺動して凝集した現像剤を解し、現像剤が解されて回転負荷が小さくなると撹拌部材が回転する。   Further, in Patent Document 2, when the driving force from the driving member is transmitted to the stirring member, the stirring member can be moved in one direction away from the driving member in the rotation axis direction, and the stirring member can be moved by the biasing member. Is urged in the direction approaching the drive member in the direction of the rotation axis. In this configuration, when the stirring member is driven in a state where the rotational load is large, the stirring member does not rotate and swings in the rotation axis direction to release the agglomerated developer, and when the developer is released and the rotational load becomes small, the stirring member is stirred. The member rotates.

特開平8−240973号公報Japanese Patent Laid-Open No. 8-240973 特開2000−181207号公報JP 2000-181207 A

しかしながら、特許文献1または2では、運搬時に発生する現像剤の凝集について検討されておらず、運搬時の現像剤の凝集を有効に抑制することができない。   However, Patent Document 1 or 2 does not discuss the aggregation of the developer generated during transportation, and the aggregation of the developer during transportation cannot be effectively suppressed.

本発明は、前記課題を解決するものであり、その目的とするところは、運搬時に発すする現像剤の凝集を有効に抑制できる現像剤容器、現像装置およびプロセスカートリッジを提供するものである。   The present invention solves the above-described problems, and an object of the present invention is to provide a developer container, a developing device, and a process cartridge capable of effectively suppressing aggregation of the developer generated during transportation.

前記目的を達成するための本発明に係る現像剤容器の代表的な構成は、現像剤を収容する現像剤収容部と、前記現像剤収容部の内部に回転可能に支持され、回転軸が前記現像剤収容部の長手方向に沿って配置された回転部材と、前記長手方向において、前記回転部材の端部と前記現像剤収容部の内側面との間に配置され、前記長手方向に弾性変形可能な弾性部材と、を有し、前記長手方向において、前記回転部材の端部と前記現像剤収容部の内側面との間には、前記回転部材が前記現像剤収容部に対して相対移動可能な間隙が形成されており、前記回転部材が前記現像剤収容部に対して前記長手方向に相対移動する第1の動作を行ったとき、前記回転部材の前記第1の動作を、回転する回転動作へ変換する変換機構を有することを特徴とする。   A typical configuration of a developer container according to the present invention for achieving the above object includes: a developer accommodating portion that accommodates a developer; a developer accommodating portion that is rotatably supported within the developer accommodating portion; A rotating member disposed along the longitudinal direction of the developer accommodating portion, and disposed between the end of the rotating member and the inner surface of the developer accommodating portion in the longitudinal direction, and elastically deformed in the longitudinal direction. An elastic member capable of moving relative to the developer accommodating portion between the end of the rotating member and the inner surface of the developer accommodating portion in the longitudinal direction. A possible gap is formed, and the first operation of the rotating member rotates when the rotating member performs a first operation relative to the developer accommodating portion in the longitudinal direction. It is characterized by having a conversion mechanism that converts it into rotational motion

本発明によれば、運搬時に発生する現像剤の凝集を有効に抑制することができる。   According to the present invention, it is possible to effectively suppress the aggregation of the developer that occurs during transportation.

本発明に係る現像剤容器を備えた画像形成装置の構成を示す断面説明図である。FIG. 3 is a cross-sectional explanatory view illustrating a configuration of an image forming apparatus including a developer container according to the present invention. 本発明に係る現像剤容器を備えたプロセスカートリッジを画像形成装置に装着する様子を示す斜視説明図である。FIG. 4 is a perspective explanatory view showing a state in which a process cartridge including a developer container according to the present invention is attached to an image forming apparatus. 本発明に係る現像剤容器を備えたプロセスカートリッジの構成を示す断面説明図である。FIG. 3 is an explanatory cross-sectional view illustrating a configuration of a process cartridge including a developer container according to the present invention. (a),(b)は、第1実施形態の現像剤容器の構成を示す分解斜視図である。(A), (b) is a disassembled perspective view which shows the structure of the developer container of 1st Embodiment. (a)〜(f)は、第1実施形態の現像剤容器の構成を示す断面説明図である。(A)-(f) is sectional explanatory drawing which shows the structure of the developer container of 1st Embodiment. (a)は、第2実施形態の現像剤容器の構成を示す分解斜視図である。(b)は、第1枠体を除いた状態における現像剤容器の分解平面図である。(A) is a disassembled perspective view which shows the structure of the developer container of 2nd Embodiment. FIG. 4B is an exploded plan view of the developer container in a state where the first frame is removed. (a),(c),(e)は、第2実施形態の第1枠体を除いた状態における現像剤容器の構成を示す平面説明図である。(b),(d),(f)は、第2実施形態の現像剤容器の構成を示す断面説明図である。(A), (c), (e) is plane explanatory drawing which shows the structure of the developer container in the state except the 1st frame of 2nd Embodiment. (B), (d), (f) is sectional explanatory drawing which shows the structure of the developer container of 2nd Embodiment. (a)は、第3実施形態の現像剤容器の構成を示す分解斜視図である。(b)は、第3実施形態の現像剤容器の構成を示す断面説明図である。(A) is a disassembled perspective view which shows the structure of the developer container of 3rd Embodiment. (B) is sectional explanatory drawing which shows the structure of the developer container of 3rd Embodiment.

図により本発明に係る現像剤容器、現像装置及びプロセスカートリッジの一実施形態を具体的に説明する。尚、以下の実施形態に記載されている構成部品の機能、材質、形状、その相対配置などは、これらに限定する必要はない。   An embodiment of a developer container, a developing device, and a process cartridge according to the present invention will be specifically described with reference to the drawings. Note that the functions, materials, shapes, relative arrangements, and the like of the components described in the following embodiments are not necessarily limited to these.

〔第1実施形態〕
図1〜図5を用いて本発明に係る現像剤容器38、現像装置及びプロセスカートリッジ7の第1実施形態の構成について説明する。
[First Embodiment]
The configuration of the first embodiment of the developer container 38, the developing device, and the process cartridge 7 according to the present invention will be described with reference to FIGS.

<画像形成装置>
図1〜図3を用いて本発明に係る現像剤容器38を備えた画像形成装置100の構成について説明する。図1は、本発明に係る現像剤容器38を備えた画像形成装置100の構成を示す断面説明図である。図2は、本発明に係る現像剤容器38を備えたプロセスカートリッジ7を画像形成装置100に装着する様子を示す斜視説明図である。図3は、本発明に係る現像剤容器38を備えたプロセスカートリッジ7の構成を示す断面説明図である。
<Image forming apparatus>
The configuration of the image forming apparatus 100 including the developer container 38 according to the present invention will be described with reference to FIGS. FIG. 1 is an explanatory cross-sectional view showing a configuration of an image forming apparatus 100 provided with a developer container 38 according to the present invention. FIG. 2 is an explanatory perspective view showing a state in which the process cartridge 7 provided with the developer container 38 according to the present invention is attached to the image forming apparatus 100. FIG. 3 is an explanatory cross-sectional view showing the configuration of the process cartridge 7 provided with the developer container 38 according to the present invention.

図1及び図2に示す画像形成装置100は、電子写真プリンタの一例である。図1に示す画像形成装置100は、複数の画像形成部として、イエローY、マゼンタM、シアンC、ブラックKの各色の画像を形成するための各画像形成部SY,SM,SC,SKを有する。各画像形成部SY,SM,SC,SKの構成及び動作は、形成する画像の色が異なる他は実質的に同じであるため、以下の説明では、単に画像形成部Sを用いて説明する場合もある。他の画像形成プロセス手段についても同様である。   The image forming apparatus 100 shown in FIGS. 1 and 2 is an example of an electrophotographic printer. The image forming apparatus 100 illustrated in FIG. 1 includes image forming units SY, SM, SC, and SK for forming images of each color of yellow Y, magenta M, cyan C, and black K as a plurality of image forming units. . Since the configurations and operations of the image forming units SY, SM, SC, and SK are substantially the same except that the color of the image to be formed is different, in the following description, the image forming unit S will be described. There is also. The same applies to other image forming process means.

図1に示す画像形成装置100は、現像剤像を担持する4個の像担持体としての感光ドラム1Y,1M,1C,1Kを有する。各感光ドラム1は、図1の矢印A方向に回転する。各感光ドラム1の周囲には、帯電手段となる帯電ローラ2及び露光手段となるスキャナユニット3が設けられている。帯電ローラ2は、感光ドラム1の表面を均一に帯電する帯電手段である。スキャナユニット3は、一様に帯電された各感光ドラム1の表面に対して画像情報に基づいてレーザ光を照射する。これにより各感光ドラム1の表面上に静電潜像が形成される。   An image forming apparatus 100 shown in FIG. 1 includes photosensitive drums 1Y, 1M, 1C, and 1K as four image carriers that carry developer images. Each photosensitive drum 1 rotates in the direction of arrow A in FIG. Around each photosensitive drum 1, a charging roller 2 serving as a charging unit and a scanner unit 3 serving as an exposure unit are provided. The charging roller 2 is a charging unit that uniformly charges the surface of the photosensitive drum 1. The scanner unit 3 irradiates the uniformly charged surface of each photosensitive drum 1 with laser light based on image information. Thereby, an electrostatic latent image is formed on the surface of each photosensitive drum 1.

感光ドラム1の周囲には、更に、現像手段となる現像ユニット4Y,4M,4C,4K(現像装置)が設けられている。各感光ドラム1の表面上に形成された静電潜像に対して、各現像ユニット4から各色のトナーT(現像剤)が供給される。これにより各感光ドラム1の表面上にトナー像が形成される。感光ドラム1の周囲には、更に、クリーニング手段としてのクリーニングブレード6Y,6M,6C,6Kが設けられている。   Around the photosensitive drum 1, further developing units 4Y, 4M, 4C, and 4K (developing devices) serving as developing means are provided. Each color toner T (developer) is supplied from each developing unit 4 to the electrostatic latent image formed on the surface of each photosensitive drum 1. As a result, a toner image is formed on the surface of each photosensitive drum 1. Around the photosensitive drum 1, cleaning blades 6Y, 6M, 6C, and 6K as cleaning means are further provided.

各感光ドラム1に対向して、中間転写体としての中間転写ベルト5が設けられている。中間転写ベルト5は、複数の支持部材となる駆動ローラ26、二次転写対向ローラ27及び従動ローラ28により図1の矢印B方向に回転可能に張架されている。中間転写ベルト5の外周面は、全ての感光ドラム1の表面に当接している。   Opposing each photosensitive drum 1, an intermediate transfer belt 5 as an intermediate transfer member is provided. The intermediate transfer belt 5 is stretched so as to be rotatable in the direction of arrow B in FIG. The outer peripheral surface of the intermediate transfer belt 5 is in contact with the surfaces of all the photosensitive drums 1.

中間転写ベルト5の内周面側には、各感光ドラム1に対向して、一次転写手段となる4個の一次転写ローラ8がそれぞれ設けられている。図示しない一次転写バイアス電源から各一次転写ローラ8に一次転写バイアスが印加されることにより各感光ドラム1の表面上に形成されたトナー像が中間転写ベルト5の外周面上に順次、一次転写されて重畳される。一次転写後に各感光ドラム1の表面上に残留したトナーTは、各クリーニングブレード6により掻き取られて各クリーニング枠体14に設けられた廃トナー収容部14a内に回収される。中間転写ベルト5の外周面側で二次転写対向ローラ27に対向する位置には、二次転写手段としての二次転写ローラ9が設けられている。   On the inner peripheral surface side of the intermediate transfer belt 5, four primary transfer rollers 8 serving as primary transfer units are provided to face the respective photosensitive drums 1. By applying a primary transfer bias to each primary transfer roller 8 from a primary transfer bias power source (not shown), the toner images formed on the surface of each photosensitive drum 1 are sequentially primary transferred onto the outer peripheral surface of the intermediate transfer belt 5. Are superimposed. The toner T remaining on the surface of each photosensitive drum 1 after the primary transfer is scraped off by each cleaning blade 6 and collected in a waste toner storage portion 14 a provided in each cleaning frame 14. A secondary transfer roller 9 as a secondary transfer unit is provided at a position facing the secondary transfer counter roller 27 on the outer peripheral surface side of the intermediate transfer belt 5.

一方、画像形成装置100の下部に設けられた給送カセット17内に収容された記録材12は、ピックアップローラ19により繰り出され、分離パッド25との協働により一枚づつ分離給送される。その後、搬送ローラ35により挟持搬送されて、停止したレジストローラ36のニップ部に記録材12の先端部が突き当てられて記録材12の斜行が補正される。   On the other hand, the recording material 12 accommodated in a feeding cassette 17 provided in the lower part of the image forming apparatus 100 is fed out by a pickup roller 19 and separated and fed one by one in cooperation with the separation pad 25. Thereafter, the recording material 12 is nipped and conveyed by the conveyance roller 35, and the leading end portion of the recording material 12 is brought into contact with the nip portion of the stopped registration roller 36 to correct the skew of the recording material 12.

中間転写ベルト5の外周面上に形成されたトナー像の画先が中間転写ベルト5の外周面と二次転写ローラ9とのニップ部からなる二次転写部Nに到達するタイミングに合わせて、レジストローラ36により記録材12が挟持搬送される。このとき、図示しない二次転写バイアス電源から二次転写ローラ9に二次転写バイアスが印加されることにより二次転写部Nにおいて、中間転写ベルト5の外周面上に重畳して一次転写されたトナー像が一括して記録材12に二次転写される。二次転写後に中間転写ベルト5の外周面上に残留したトナーTは、クリーニング手段としてのクリーナ11により掻き取られて回収される。   In accordance with the timing at which the image destination of the toner image formed on the outer peripheral surface of the intermediate transfer belt 5 reaches the secondary transfer portion N formed by the nip portion between the outer peripheral surface of the intermediate transfer belt 5 and the secondary transfer roller 9, The recording material 12 is nipped and conveyed by the registration roller 36. At this time, a secondary transfer bias is applied from a secondary transfer bias power source (not shown) to the secondary transfer roller 9, so that the secondary transfer portion N is primary-transferred superimposed on the outer peripheral surface of the intermediate transfer belt 5. The toner images are secondarily transferred to the recording material 12 at once. The toner T remaining on the outer peripheral surface of the intermediate transfer belt 5 after the secondary transfer is scraped and collected by a cleaner 11 as a cleaning unit.

二次転写部Nにおいて、トナー像が二次転写された記録材12は、定着手段となる定着装置10に搬送され、定着装置10に設けられた加熱ローラと加圧ローラとにより挟持搬送される間に加熱及び加圧されてトナー像が記録材12に熱定着される。その後、排出トレイ37上に排出される。   In the secondary transfer portion N, the recording material 12 onto which the toner image has been secondarily transferred is conveyed to a fixing device 10 serving as a fixing unit, and is nipped and conveyed by a heating roller and a pressure roller provided in the fixing device 10. The toner image is thermally fixed to the recording material 12 by being heated and pressurized in between. Thereafter, the sheet is discharged onto the discharge tray 37.

本実施形態の各現像ユニット4は、現像剤として非磁性一成分現像剤からなるトナーTY,TM,TC,TKを用いている。各現像ユニット4には、トナーT(現像剤)を担持する現像剤担持体としての現像ローラ22がそれぞれ設けられている。各現像ローラ22の表面上には、各色のトナーTが担持されている。各現像ローラ22を各感光ドラム1の表面に対して接触させて、各感光ドラム1の表面上に形成された静電潜像に対して、各現像ローラ22の表面に担持された各色のトナーTを供給して接触現像を行う。   Each developing unit 4 of the present embodiment uses toners TY, TM, TC, and TK made of a non-magnetic one-component developer as a developer. Each developing unit 4 is provided with a developing roller 22 as a developer carrying member for carrying toner T (developer). Each color toner T is carried on the surface of each developing roller 22. Each developing roller 22 is brought into contact with the surface of each photosensitive drum 1, and each color toner carried on the surface of each developing roller 22 is applied to the electrostatic latent image formed on the surface of each photosensitive drum 1. T is supplied to perform contact development.

本実施形態では、感光ドラム1と、帯電ローラ2と、クリーニングブレード6と、廃トナー収容部14aとを有するクリーニング枠体14により感光体ユニット13を形成している。また、現像ユニット4と、感光体ユニット13とを、一体的にカートリッジ化して、プロセスカートリッジ7を形成している。   In the present embodiment, the photosensitive unit 13 is formed by the cleaning frame 14 having the photosensitive drum 1, the charging roller 2, the cleaning blade 6, and the waste toner container 14a. Further, the developing unit 4 and the photosensitive unit 13 are integrally formed into a cartridge to form a process cartridge 7.

各プロセスカートリッジ7は、画像形成装置100本体に対して着脱可能に構成される。図2に示すように、各プロセスカートリッジ7は、画像形成装置100に設けられた装着ガイド39に沿って画像形成装置100本体内部に装着され、図示しない位置決め部材により図1に示す画像形成位置に位置決めされる。   Each process cartridge 7 is configured to be detachable from the image forming apparatus 100 main body. As shown in FIG. 2, each process cartridge 7 is mounted inside the main body of the image forming apparatus 100 along a mounting guide 39 provided in the image forming apparatus 100, and is moved to the image forming position shown in FIG. Positioned.

各プロセスカートリッジ7は、図2の矢印G方向で示す感光ドラム1の軸線方向に沿って、画像形成装置100に対して着脱可能である。各プロセスカートリッジ7は、同一形状を有して構成される。各プロセスカートリッジ7内には、それぞれイエローY、マゼンタM、シアンC、ブラックKの各色のトナーTY,TM,TC,TKが収容されている。   Each process cartridge 7 can be attached to and detached from the image forming apparatus 100 along the axial direction of the photosensitive drum 1 indicated by the arrow G direction in FIG. Each process cartridge 7 has the same shape. Each process cartridge 7 accommodates toners TY, TM, TC, and TK of yellow Y, magenta M, cyan C, and black K, respectively.

本実施形態では、現像剤容器38と、現像ローラ22(現像剤担持体)を備えた現像ユニット4(現像装置)と、感光ドラム1(像担持体)を備えた感光体ユニット13とを一体的にユニット化した。このようなプロセスカートリッジ7を画像形成装置100本体に対して着脱可能に構成した。他に、現像剤容器38または現像ユニット4(現像装置)をカートリッジ化して画像形成装置100本体に対して着脱可能に構成しても良い。   In the present embodiment, the developer container 38, the developing unit 4 (developing device) provided with the developing roller 22 (developer carrier), and the photosensitive unit 13 provided with the photosensitive drum 1 (image carrier) are integrated. Unitized. Such a process cartridge 7 is configured to be detachable from the image forming apparatus 100 main body. In addition, the developer container 38 or the developing unit 4 (developing device) may be formed into a cartridge so as to be detachable from the main body of the image forming apparatus 100.

<画像形成動作>
画像形成時には、先ず、図1の矢印A方向に回転する各感光ドラム1の表面が各帯電ローラ2により一様に帯電される。次に、スキャナユニット3から各色の画像情報に応じたレーザ光が出射される。スキャナユニット3から出射されたレーザ光は、一様に帯電された各感光ドラム1の表面上に走査露光される。これにより各感光ドラム1の表面上に画像情報に応じた静電潜像が形成される。
<Image forming operation>
At the time of image formation, first, the surface of each photosensitive drum 1 rotating in the direction of arrow A in FIG. 1 is uniformly charged by each charging roller 2. Next, laser light corresponding to the image information of each color is emitted from the scanner unit 3. The laser light emitted from the scanner unit 3 is scanned and exposed on the surface of each uniformly charged photosensitive drum 1. As a result, an electrostatic latent image corresponding to the image information is formed on the surface of each photosensitive drum 1.

次に、各感光ドラム1の表面上に形成された静電潜像は、各現像ユニット4に設けられた現像ローラ22により各色のトナーTがそれぞれ供給されてトナー像として現像される。各感光ドラム1の表面上に形成されたトナー像は、各一次転写ローラ8の作用により中間転写ベルト5の外周面上に一次転写される。   Next, the electrostatic latent image formed on the surface of each photosensitive drum 1 is developed as a toner image by supplying toner T of each color by a developing roller 22 provided in each developing unit 4. The toner image formed on the surface of each photosensitive drum 1 is primarily transferred onto the outer peripheral surface of the intermediate transfer belt 5 by the action of each primary transfer roller 8.

例えば、フルカラー画像の形成時には、上記の画像形成プロセスが、画像形成部SY,SM,SC,SKにおいて順次に行われる。これにより各感光ドラム1の表面上に形成された各色のトナー像が中間転写ベルト5の外周面上に順次に重ね合わせて一次転写される。   For example, when forming a full-color image, the above-described image forming process is sequentially performed in the image forming units SY, SM, SC, and SK. As a result, the toner images of the respective colors formed on the surface of the respective photosensitive drums 1 are sequentially superimposed and sequentially transferred onto the outer peripheral surface of the intermediate transfer belt 5.

その後、中間転写ベルト5の図1の矢印B方向の回転と同期して記録材12が二次転写部Nへと搬送される。そして、記録材12を介して中間転写ベルト5の外周面に当接している二次転写ローラ9の作用により中間転写ベルト5の外周面上に形成された4色のトナー像は、一括して記録材12上に二次転写される。   Thereafter, the recording material 12 is conveyed to the secondary transfer portion N in synchronization with the rotation of the intermediate transfer belt 5 in the direction of arrow B in FIG. The four color toner images formed on the outer peripheral surface of the intermediate transfer belt 5 by the action of the secondary transfer roller 9 in contact with the outer peripheral surface of the intermediate transfer belt 5 via the recording material 12 are collectively collected. Secondary transfer is performed on the recording material 12.

トナー像が二次転写された記録材12は、定着手段としての定着装置10に搬送される。定着装置10に設けられた加熱ローラと加圧ローラとによりトナー像を担持した記録材12が挟持搬送される間にトナー像を担持した記録材12に熱及び圧力が加えられる。これにより記録材12にトナー像が熱定着される。   The recording material 12 on which the toner image is secondarily transferred is conveyed to a fixing device 10 as a fixing unit. Heat and pressure are applied to the recording material 12 carrying the toner image while the recording material 12 carrying the toner image is nipped and conveyed by a heating roller and a pressure roller provided in the fixing device 10. As a result, the toner image is thermally fixed on the recording material 12.

一次転写後に各感光ドラム1の表面上に残留した一次転写残トナーは、各クリーニングブレード6により掻き取られて除去され、それぞれ廃トナー収容部14a内に回収される。また、二次転写後に中間転写ベルト5の外周面上に残留した二次転写残トナーは、クリーナ11により除去されて回収される。   The primary transfer residual toner remaining on the surface of each photosensitive drum 1 after the primary transfer is scraped off and removed by each cleaning blade 6 and is collected in the waste toner container 14a. The secondary transfer residual toner remaining on the outer peripheral surface of the intermediate transfer belt 5 after the secondary transfer is removed and collected by the cleaner 11.

クリーナ11により除去された転写残トナー(廃トナー)は、画像形成装置100に設けられた図示しない廃トナーボックス内に排出される。画像形成装置100は、所望の単独又はいくつか(全てではない)の画像形成部Sのみを用いて、単色又はマルチカラーの画像を形成することもできる。   The transfer residual toner (waste toner) removed by the cleaner 11 is discharged into a waste toner box (not shown) provided in the image forming apparatus 100. The image forming apparatus 100 can also form a single-color or multi-color image using only a desired single or some (not all) image forming units S.

<プロセスカートリッジ>
次に、図3を用いて、画像形成装置100に装着されるプロセスカートリッジ7の構成について説明する。図3に示す感光体ユニット13は、感光体ユニット13内の各種要素を支持する枠体としてのクリーニング枠体14を有する。クリーニング枠体14には、図示しない軸受部材を介して感光ドラム1が図3の矢印A方向に回転可能に軸支されている。
<Process cartridge>
Next, the configuration of the process cartridge 7 attached to the image forming apparatus 100 will be described with reference to FIG. The photoconductor unit 13 shown in FIG. 3 has a cleaning frame 14 as a frame that supports various elements in the photoconductor unit 13. The photosensitive drum 1 is pivotally supported on the cleaning frame 14 via a bearing member (not shown) so as to be rotatable in the direction of arrow A in FIG.

クリーニング枠体14には、更に、帯電ローラ2を回転可能に支持する軸受15が設けられている。軸受15は、帯電ローラ2の回転中心2aと感光ドラム1の回転中心1aとを通る直線40に沿って図3の矢印E方向に移動可能に取り付けられている。軸受15は、付勢手段としての加圧バネ16の付勢力により感光ドラム1に向かって付勢されている。   The cleaning frame 14 is further provided with a bearing 15 that rotatably supports the charging roller 2. The bearing 15 is attached to be movable in the direction of arrow E in FIG. 3 along a straight line 40 passing through the rotation center 2a of the charging roller 2 and the rotation center 1a of the photosensitive drum 1. The bearing 15 is biased toward the photosensitive drum 1 by a biasing force of a pressure spring 16 as a biasing unit.

クリーニングブレード6は、一次転写後に各感光ドラム1の表面に残った転写残トナー(廃トナー)を除去するための弾性部材6aと、弾性部材6aを支持するための支持部材6bとが一体的に形成されている。クリーニングブレード6により各感光ドラム1の表面から除去された廃トナーは、クリーニングブレード6とクリーニング枠体14とにより形成される空間を重力方向(図3の下方向)に落下し、廃トナー収容部14a内に収容される。   In the cleaning blade 6, an elastic member 6a for removing transfer residual toner (waste toner) remaining on the surface of each photosensitive drum 1 after the primary transfer and a support member 6b for supporting the elastic member 6a are integrally formed. Is formed. The waste toner removed from the surface of each photosensitive drum 1 by the cleaning blade 6 falls in the direction of gravity (downward in FIG. 3) in the space formed by the cleaning blade 6 and the cleaning frame 14, and the waste toner storage unit 14a.

現像ユニット4は、現像ユニット4内の各種要素を支持する現像枠体18を有する。現像枠体18により現像剤容器38が形成されている。現像ユニット4には、感光ドラム1の表面と接触して図3の矢印D方向に回転する現像剤担持体としての現像ローラ22が設けられている。現像ローラ22は、その長手方向(回転軸線方向)の両端部において、現像枠体18に設けられた図示しない軸受を介して回転可能に支持されている。   The developing unit 4 has a developing frame 18 that supports various elements in the developing unit 4. A developer container 38 is formed by the developing frame 18. The developing unit 4 is provided with a developing roller 22 as a developer carrying member that contacts the surface of the photosensitive drum 1 and rotates in the direction of arrow D in FIG. The developing roller 22 is rotatably supported at both ends in the longitudinal direction (rotating axis direction) via a bearing (not shown) provided on the developing frame 18.

現像ユニット4は、トナーT(現像剤)を収容する現像剤収容室18a(現像剤収容部)と、現像ローラ22が設けられた現像室18bと、現像剤収容室18aと現像室18bとを連通する開口18cとを有する。図3に示すように、プロセスカートリッジ7が画像形成装置100の画像形成位置に装着された状態で、現像室18bは、現像剤収容室18aの上方に位置する。開口18cは、現像剤収容室18a内(現像剤収容部の内部)と、その外部となる現像室18bとを連通する。   The developing unit 4 includes a developer accommodating chamber 18a (developer accommodating portion) that accommodates toner T (developer), a developing chamber 18b provided with a developing roller 22, a developer accommodating chamber 18a, and a developing chamber 18b. And an opening 18c communicating therewith. As shown in FIG. 3, the developing chamber 18 b is positioned above the developer accommodating chamber 18 a in a state where the process cartridge 7 is mounted at the image forming position of the image forming apparatus 100. The opening 18c communicates the inside of the developer accommodating chamber 18a (inside the developer accommodating portion) with the developing chamber 18b serving as the outside thereof.

現像室18bには、現像ローラ22の表面に接触して回転する現像剤供給部材としての供給ローラ20と、現像ローラ22の表面上に担持されるトナーTの層厚を規制するための現像剤規制部材としての現像ブレード21が設けられている。現像剤収容室18aには、該現像剤収容室18a内に収容されたトナーTを撹拌するとともに、開口18cを介して、現像室18b内の供給ローラ20へトナーTを搬送するための回転部材となる撹拌部材23が設けられている。   In the developing chamber 18 b, a supply roller 20 as a developer supply member that rotates in contact with the surface of the developing roller 22 and a developer for regulating the layer thickness of the toner T carried on the surface of the developing roller 22. A developing blade 21 as a regulating member is provided. A rotating member for agitating the toner T accommodated in the developer accommodating chamber 18a and conveying the toner T to the supply roller 20 in the developing chamber 18b through the opening 18c is provided in the developer accommodating chamber 18a. A stirring member 23 is provided.

撹拌部材23(回転部材)は、現像剤収容室18a内(現像剤収容部の内部)に回転可能に支持される。撹拌部材23(回転部材)の回転軸23aは、現像剤収容室18a(現像剤収容部)の長手方向に沿って配置される。回転軸23aは、トナーT(現像剤)を担持する現像剤担持体となる現像ローラ22の回転軸線方向に平行に配置される。   The stirring member 23 (rotating member) is rotatably supported in the developer accommodating chamber 18a (inside the developer accommodating portion). The rotating shaft 23a of the agitating member 23 (rotating member) is disposed along the longitudinal direction of the developer accommodating chamber 18a (developer accommodating portion). The rotation shaft 23a is arranged in parallel to the rotation axis direction of the developing roller 22 serving as a developer carrying member for carrying the toner T (developer).

更に、一端部に設けられた固定部23b1が回転軸23aに固定され、他端部に設けられた自由端部23b2を有する可撓性のシート部材となる撹拌シート23bが設けられている。回転軸23aの回転に伴って撹拌シート23b(シート部材)が回転すると、撹拌シート23bの自由端部23b2が現像剤収容室18a(現像剤収容部)の内壁面18dに接触可能に構成される。   Further, a fixing sheet 23b provided at one end is fixed to the rotating shaft 23a, and a stirring sheet 23b serving as a flexible sheet member having a free end 23b2 provided at the other end is provided. When the stirring sheet 23b (sheet member) rotates with the rotation of the rotating shaft 23a, the free end portion 23b2 of the stirring sheet 23b is configured to come into contact with the inner wall surface 18d of the developer storage chamber 18a (developer storage section). .

撹拌シート23bは、可撓性を有するシート状部材で構成される。回転軸23aが図3の矢印F方向に回転することにより撹拌シート23bが回転軸23aと一体的に回転し、現像剤収容室18a内に収容されたトナーTを撹拌搬送する。   The stirring sheet 23b is configured by a flexible sheet-like member. When the rotating shaft 23a rotates in the direction of arrow F in FIG. 3, the stirring sheet 23b rotates integrally with the rotating shaft 23a, and the toner T stored in the developer storage chamber 18a is stirred and conveyed.

撹拌シート23bは、回転軸23aを中心に図2の矢印F方向に回転する。このとき、撹拌シート23bは、現像剤収容室18aの内壁面18dに当接摺動して撓んだ状態で回転する。現像剤収容室18aの内壁面18dには、撹拌シート23bが撓み状態から解放される内側に突出した解放位置18eが設けられている。   The stirring sheet 23b rotates in the direction of arrow F in FIG. 2 about the rotation shaft 23a. At this time, the agitating sheet 23b rotates in a state of being in contact with and sliding against the inner wall surface 18d of the developer accommodating chamber 18a. The inner wall surface 18d of the developer storage chamber 18a is provided with a release position 18e protruding inward from which the stirring sheet 23b is released from the bent state.

回転軸23aを中心に図2の矢印F方向に回転する撹拌シート23bの自由端部23b2が解放位置18eを通過するとき、撹拌シート23bが撓み状態から解放される。そのときに生じる力により撹拌シート23b上に乗ったトナーTを跳ね上げ、開口18cを介して現像室18b内の供給ローラ20に向けて搬送する。   When the free end portion 23b2 of the stirring sheet 23b that rotates in the direction of arrow F in FIG. 2 around the rotation shaft 23a passes through the release position 18e, the stirring sheet 23b is released from the bent state. The toner T riding on the stirring sheet 23b is flipped up by the force generated at that time, and conveyed toward the supply roller 20 in the developing chamber 18b through the opening 18c.

<現像剤容器>
次に、図4及び図5を用いて、現像剤容器38の構成について説明する。図4(a),(b)は、本実施形態の現像剤容器38の構成を示す分解斜視図である。図4(a)は、現像剤容器38を駆動伝達部材30側の一端側から見た分解斜視図であり、図4(b)は、現像剤容器38を駆動伝達部材30と反対側の他端側から見た分解斜視図である。図5(a)〜(f)は、本実施形態の現像剤容器38の構成を示す断面説明図である。図5(a),(b)は、コイルバネからなる弾性部材29が弾性変形していない状態を示す断面説明図である。図5(c),(d)及び図5(e),(f)は、弾性部材29が弾性変形した状態を示す断面説明図である。
<Developer container>
Next, the configuration of the developer container 38 will be described with reference to FIGS. 4 and 5. 4A and 4B are exploded perspective views showing the configuration of the developer container 38 of the present embodiment. FIG. 4A is an exploded perspective view of the developer container 38 as viewed from one end side on the drive transmission member 30 side, and FIG. 4B shows the developer container 38 on the other side opposite to the drive transmission member 30. It is the disassembled perspective view seen from the end side. 5A to 5F are cross-sectional explanatory views showing the configuration of the developer container 38 of the present embodiment. FIGS. 5A and 5B are cross-sectional explanatory views showing a state where the elastic member 29 made of a coil spring is not elastically deformed. FIGS. 5C and 5D and FIGS. 5E and 5F are cross-sectional explanatory views showing a state where the elastic member 29 is elastically deformed.

図4及び図5に示すように、現像剤容器38の内部には、撹拌部材23が設けられている。撹拌部材23は、回転軸23aと、撹拌シート23bと、回転軸23aの回転軸線方向の一端側に設けられた有底円筒状の凹部からなる被伝達部23fを有する。更に、回転軸23aの回転軸線方向の他端側に設けられた凸形状の軸部23gと、被伝達部23fの内部に設けられた突起部23cとを有して構成される。   As shown in FIGS. 4 and 5, a stirring member 23 is provided inside the developer container 38. The stirring member 23 includes a transmission shaft 23a, a stirring sheet 23b, and a transmitted portion 23f including a bottomed cylindrical concave portion provided on one end side of the rotation shaft 23a in the rotation axis direction. Furthermore, it has a convex shaft portion 23g provided on the other end side in the rotation axis direction of the rotation shaft 23a, and a projection portion 23c provided inside the transmitted portion 23f.

回転軸23aの回転軸線方向の一端側には、傾斜した複数の突起からなる第一被係合部23hが設けられている。回転軸23aの回転軸線方向の他端側には、第一被係合部23hと逆方向に傾斜した複数の突起からなる第二被係合部23iが設けられている。   A first engaged portion 23h including a plurality of inclined protrusions is provided on one end side in the rotation axis direction of the rotation shaft 23a. A second engaged portion 23i including a plurality of protrusions inclined in the direction opposite to the first engaged portion 23h is provided on the other end side in the rotation axis direction of the rotation shaft 23a.

現像剤容器38は、第1枠体18fと、第2枠体18gとを溶着等で一体的に結合することで構成される。第1枠体18fと第2枠体18gとで形成されたトナーTを収容する空間が現像剤収容室18aである。   The developer container 38 is configured by integrally joining the first frame 18f and the second frame 18g by welding or the like. A space for accommodating the toner T formed by the first frame 18f and the second frame 18g is a developer storage chamber 18a.

第2枠体18gには、第2枠体18gに設けられた現像剤収容室18aと現像室18bとを区画する隔壁18jを貫通する開口18cが設けられている。更に、第2枠体18gの駆動伝達部材30側の内側面18g1を貫通する円形の貫通穴18g1aの周縁部に外側に突出して筒状部からなる第一支持部18hが設けられている。更に、第2枠体18gの駆動伝達部材30とは反対側の内側面18g2を貫通する円形の貫通穴の周縁部に外側に突出して有底円筒状に設けられた第二支持部18iが設けられる。   The second frame 18g is provided with an opening 18c that penetrates a partition wall 18j that divides the developer storage chamber 18a and the development chamber 18b provided in the second frame 18g. Furthermore, the 1st support part 18h which protrudes outside is provided in the peripheral part of the circular through-hole 18g1a which penetrates the inner surface 18g1 by the side of the drive transmission member 30 of the 2nd frame 18g. Furthermore, a second support portion 18i provided in a cylindrical shape with a bottom is provided on the peripheral edge portion of a circular through hole penetrating the inner side surface 18g2 opposite to the drive transmission member 30 of the second frame 18g. It is done.

駆動伝達部材30は、現像剤収容室18a(現像剤収容部)の一方側の内側面18g1(側壁)に回転可能に支持される。駆動伝達部材30は、撹拌部材23(回転部材)の回転軸23aに駆動を伝達する。   The drive transmission member 30 is rotatably supported by an inner side surface 18g1 (side wall) on one side of the developer containing chamber 18a (developer containing portion). The drive transmission member 30 transmits drive to the rotating shaft 23a of the stirring member 23 (rotating member).

第2枠体18gの駆動伝達部材30側に設けられた内側面18g1には、回転軸23aの有底円筒状の被伝達部23fの先端部に設けられた第一被係合部23hに対応した複数の傾斜突起からなる第一係合部18mが設けられている。第2枠体18gの駆動伝達部材30とは反対側に設けられた内側面18g2には、回転軸23aに設けられた第二被係合部23iに対応した複数の傾斜突起からなる第二係合部18nが設けられている。   The inner side surface 18g1 provided on the drive transmission member 30 side of the second frame 18g corresponds to the first engaged portion 23h provided at the tip of the bottomed cylindrical transmission portion 23f of the rotating shaft 23a. A first engagement portion 18m made of a plurality of inclined protrusions is provided. On the inner side surface 18g2 provided on the opposite side of the second frame 18g from the drive transmission member 30, a second engagement comprising a plurality of inclined projections corresponding to the second engaged portions 23i provided on the rotating shaft 23a. A joint portion 18n is provided.

ここで、第一係合部18mと第一被係合部23hとが係合する位置の位相と、第二係合部18nと第二被係合部23iとが係合する位置の位相とが異なる。本実施形態では、第一係合部18mと第二係合部18nの突起先端の位相が異なり、第一被係合部23hと第二被係合部23iの突起先端の位相が一致するように構成した。   Here, the phase of the position where the first engaging portion 18m and the first engaged portion 23h engage, and the phase of the position where the second engaging portion 18n and the second engaged portion 23i engage, Is different. In the present embodiment, the phases of the projection tips of the first engagement portion 18m and the second engagement portion 18n are different, and the phases of the projection tips of the first engaged portion 23h and the second engaged portion 23i are matched. Configured.

現像剤容器38の長手方向の一端側には、回転軸23aに駆動力を伝達する駆動伝達部材30が設けられている。駆動伝達部材30は、図示しない駆動源となるモータからの回転駆動力がギア列等の駆動伝達手段を介して伝達されるギア部30cを有する。更に、第2枠体18gの駆動伝達部材30側の内側面18g1から突出した円筒部からなる第一支持部18h内に挿入されて摺動可能に軸支される被支持部30bを有する。更に、リング状のシール部材33内に摺動可能に挿通される軸部からなる駆動伝達部30aと、駆動伝達部30aの先端部に突出して設けた突起部30dとを有して構成される。   On one end side in the longitudinal direction of the developer container 38, a drive transmission member 30 for transmitting a driving force to the rotating shaft 23a is provided. The drive transmission member 30 has a gear portion 30c to which a rotational driving force from a motor as a drive source (not shown) is transmitted through a drive transmission means such as a gear train. Furthermore, it has the supported part 30b inserted in the 1st support part 18h which consists of a cylindrical part protruded from the inner surface 18g1 by the side of the drive transmission member 30 of the 2nd frame 18g, and is slidably supported. Furthermore, it has a drive transmission part 30a composed of a shaft part that is slidably inserted into the ring-shaped seal member 33, and a protrusion part 30d that protrudes from the tip of the drive transmission part 30a. .

図5(a),(c),(e)に示すように、ギア部30cの第一支持部18h側の端面は、第一支持部18hの端面に当接摺動する。シール部材33は、第2枠体18gの駆動伝達部材30側の内側面18g1を貫通する円形の貫通穴18g1aの周縁部と、筒状部からなる第一支持部18hの内面との間に挿入されて支持される。   As shown in FIGS. 5A, 5 </ b> C, and 5 </ b> E, the end surface on the first support portion 18 h side of the gear portion 30 c abuts and slides on the end surface of the first support portion 18 h. The seal member 33 is inserted between the peripheral portion of the circular through hole 18g1a penetrating the inner side surface 18g1 on the drive transmission member 30 side of the second frame 18g and the inner surface of the first support portion 18h made of a cylindrical portion. Has been supported.

回転軸23aの駆動伝達部材30側の端部には、駆動伝達部材30の駆動伝達部30aが摺動可能に挿入される有底円筒状の被伝達部23fが設けられており、被伝達部23fの底面には、駆動伝達部材30側に突出した突起部23cが設けられている。   At the end of the rotary shaft 23a on the drive transmission member 30 side, a bottomed cylindrical transmission portion 23f into which the drive transmission portion 30a of the drive transmission member 30 is slidably inserted is provided. On the bottom surface of 23f, a protruding portion 23c protruding toward the drive transmission member 30 is provided.

図5(a),(c),(e)に示すように、回転軸23aの突起部23cには、コイルバネからなる弾性部材29の一端部が圧入して固定され、該弾性部材29の他端部には、駆動伝達部材30の突起部30dが圧入して固定される。   As shown in FIGS. 5A, 5C, and 5E, one end of an elastic member 29 made of a coil spring is press-fitted and fixed to the protrusion 23c of the rotating shaft 23a. A protrusion 30d of the drive transmission member 30 is press-fitted and fixed to the end.

弾性部材29は、現像剤収容室18a(現像剤収容部)の長手方向において、一端部が撹拌部材23(回転部材)の回転軸23aに設けられた突起部23cに圧入して固定され、他端部が駆動伝達部材30に設けられた突起部30dに圧入して固定される。このように回転軸23aと駆動伝達部材30との間には、弾性変形可能なコイルバネからなる弾性部材29が設けられる。   One end of the elastic member 29 is press-fitted and fixed to a protrusion 23c provided on the rotating shaft 23a of the stirring member 23 (rotating member) in the longitudinal direction of the developer containing chamber 18a (developer containing portion). The end is press-fitted into and fixed to a protrusion 30 d provided on the drive transmission member 30. Thus, between the rotating shaft 23 a and the drive transmission member 30, the elastic member 29 made of an elastically deformable coil spring is provided.

現像剤収容室18a(現像剤収容部)の長手方向において、撹拌部材23(回転部材)が現像剤収容室18aに対して相対移動したとき、コイルバネからなる弾性部材29の弾性力により撹拌部材23の移動方向とは反対方向に撹拌部材23に付勢力を発生させる。   When the agitating member 23 (rotating member) moves relative to the developer accommodating chamber 18a in the longitudinal direction of the developer accommodating chamber 18a (developer accommodating portion), the agitating member 23 is caused by the elastic force of the elastic member 29 made of a coil spring. An urging force is generated in the stirring member 23 in a direction opposite to the moving direction.

弾性部材29の外周は、回転軸23aの有底円筒状の被伝達部23fと、駆動伝達部材30の駆動伝達部30aとからなる覆い部材により覆われている。これにより現像剤収容室18a内(現像剤収容部の内部)に収容されたトナーT(現像剤)により弾性部材29の伸縮動作が阻害されることが無い。   The outer periphery of the elastic member 29 is covered with a covering member including a bottomed cylindrical transmitted portion 23f of the rotating shaft 23a and a drive transmitting portion 30a of the drive transmitting member 30. Thereby, the expansion and contraction operation of the elastic member 29 is not hindered by the toner T (developer) accommodated in the developer accommodating chamber 18a (inside the developer accommodating portion).

弾性部材29は、現像剤収容室18a(現像剤収容部)の長手方向において、撹拌部材23(回転部材)の回転軸23aの端部と、現像剤収容室18a(現像剤収容部)の内側面18g1との間に配置される。弾性部材29は、現像剤収容室18a(現像剤収容部)の長手方向に弾性変形可能である。   The elastic member 29 is arranged in the longitudinal direction of the developer accommodating chamber 18a (developer accommodating portion) and within the end of the rotating shaft 23a of the stirring member 23 (rotating member) and the developer accommodating chamber 18a (developer accommodating portion). It arrange | positions between the side surfaces 18g1. The elastic member 29 is elastically deformable in the longitudinal direction of the developer accommodating chamber 18a (developer accommodating portion).

第2枠体18gの駆動伝達部材30側の内側面18g1を貫通する円形の貫通穴18g1aの周縁部と、駆動伝達部材30の円筒状の被支持部30bの内周面との間にはウレタンフォーム等からなるリング状のシール部材33が設けられている。   Between the peripheral edge portion of the circular through hole 18g1a penetrating the inner surface 18g1 on the drive transmission member 30 side of the second frame 18g and the inner peripheral surface of the cylindrical supported portion 30b of the drive transmission member 30 is urethane. A ring-shaped sealing member 33 made of foam or the like is provided.

<現像剤容器の組み立て>
図4及び図5を用いて現像剤容器38の組み立て手順について説明する。先ず、図4(a),(b)に示す撹拌シート23bの固定部23b1を回転軸23aに固定する。そして、回転軸23aの駆動伝達部材30側の端部に設けられた有底円筒状の被伝達部23fの底面から突出した突起部23cにコイルバネからなる弾性部材29の一端部を圧入する。
<Assembly of developer container>
A procedure for assembling the developer container 38 will be described with reference to FIGS. 4 and 5. First, the fixing portion 23b1 of the stirring sheet 23b shown in FIGS. 4A and 4B is fixed to the rotating shaft 23a. Then, one end of the elastic member 29 made of a coil spring is press-fitted into a protrusion 23c protruding from the bottom surface of the bottomed cylindrical receiver 23f provided at the end of the rotary shaft 23a on the drive transmission member 30 side.

その後、回転軸23aの駆動伝達部材30とは反対側の端面から突出した軸部23gを、第2枠体18gの駆動伝達部材30とは反対側の内側面18g2を貫通して設けられた有底円筒状の第二支持部18i内に挿入する。   Thereafter, the shaft portion 23g protruding from the end surface of the rotating shaft 23a opposite to the drive transmission member 30 is provided through the inner side surface 18g2 of the second frame 18g opposite to the drive transmission member 30. It inserts in the bottom cylindrical 2nd support part 18i.

そして、回転軸23aの駆動伝達部材30側の第一被係合部23hを、第2枠体18gの駆動伝達部材30側の内側面18g1を貫通する円形の貫通穴18g1aに対応する位置まで第2枠体18g内に挿入する。   Then, the first engaged portion 23h on the drive transmission member 30 side of the rotation shaft 23a is moved to the position corresponding to the circular through hole 18g1a penetrating the inner side surface 18g1 on the drive transmission member 30 side of the second frame 18g. Insert into the two-frame body 18g.

一方、第一支持部18hの内周面にシール部材33を圧入した後に、駆動伝達部材30を第一支持部18h内に挿入する。そして、駆動伝達部材30の駆動伝達部30aと被支持部30bとを円筒状の第一支持部18h内に挿通する。   On the other hand, after the seal member 33 is press-fitted into the inner peripheral surface of the first support portion 18h, the drive transmission member 30 is inserted into the first support portion 18h. And the drive transmission part 30a and the to-be-supported part 30b of the drive transmission member 30 are penetrated in the cylindrical 1st support part 18h.

更に、駆動伝達部材30の駆動伝達部30aを貫通穴18g1a内に挿通し、更に、回転軸23aの有底円筒状の被伝達部23f内に挿通する。このとき、駆動伝達部30aの先端部に突出した突起部30dを、弾性部材29の他端部に圧入する。   Further, the drive transmission part 30a of the drive transmission member 30 is inserted into the through hole 18g1a, and further inserted into the bottomed cylindrical transmission part 23f of the rotating shaft 23a. At this time, the protrusion 30 d protruding from the tip of the drive transmission unit 30 a is press-fitted into the other end of the elastic member 29.

その後、第1枠体18fと第2枠体18gとを溶着等で一体的に結合する。開口18cは、図示しない封止部材により剥離可能に封止される。図示しない充填口から現像剤容器38内にトナーTを充填した後、図示しない充填口を閉塞する。   Thereafter, the first frame 18f and the second frame 18g are integrally coupled by welding or the like. The opening 18c is detachably sealed by a sealing member (not shown). After the toner T is filled into the developer container 38 from a filling port (not shown), the filling port (not shown) is closed.

図5(a)に示すように、回転軸23aの回転軸線方向の駆動伝達部材30側に設けられた第一被係合部23hの先端部と、第2枠体18gの駆動伝達部材30側の内側面18g1との間には、回転軸23aの回転軸線方向に間隙L1が設けられる。一方、回転軸23aの回転軸線方向の駆動伝達部材30と反対側に設けられた第二被係合部23iの先端部と、第2枠体18gの駆動伝達部材30とは反対側の内側面18g2との間には、回転軸23aの回転軸線方向に間隙L2が設けられる。   As shown in FIG. 5A, the distal end portion of the first engaged portion 23h provided on the drive transmission member 30 side in the rotation axis direction of the rotation shaft 23a and the drive transmission member 30 side of the second frame 18g. A gap L1 is provided between the inner side surface 18g1 and the inner surface 18g1 in the rotation axis direction of the rotation shaft 23a. On the other hand, the distal end portion of the second engaged portion 23i provided on the opposite side to the drive transmission member 30 in the rotation axis direction of the rotation shaft 23a and the inner surface of the second frame 18g on the opposite side to the drive transmission member 30. Between 18g2, a gap L2 is provided in the direction of the rotation axis of the rotation shaft 23a.

即ち、現像剤収容室18a(現像剤収容部)の長手方向において、撹拌部材23(回転部材)の端部となる第一被係合部23hの先端部と、現像剤収容室18a(現像剤収容部)の内側面18g1との間には、間隙L1が形成されている。この間隙L1により撹拌部材23(回転部材)が現像剤収容室18a(現像剤収容部)に対して相対移動可能である。   That is, in the longitudinal direction of the developer accommodating chamber 18a (developer accommodating portion), the tip end portion of the first engaged portion 23h serving as the end portion of the stirring member 23 (rotating member) and the developer accommodating chamber 18a (developer). A gap L1 is formed between the inner surface 18g1 of the housing portion). By this gap L1, the stirring member 23 (rotating member) can move relative to the developer containing chamber 18a (developer containing portion).

また、現像剤収容室18a(現像剤収容部)の長手方向において、撹拌部材23(回転部材)の端部となる第二被係合部23iの先端部と、現像剤収容室18a(現像剤収容部)の内側面18g2との間には、間隙L2が形成されている。この間隙L2により撹拌部材23(回転部材)が現像剤収容室18a(現像剤収容部)に対して相対移動可能である。   Further, in the longitudinal direction of the developer accommodating chamber 18a (developer accommodating portion), the tip end portion of the second engaged portion 23i serving as the end portion of the stirring member 23 (rotating member) and the developer accommodating chamber 18a (developer). A gap L2 is formed between the inner surface 18g2 of the housing portion). By this gap L2, the stirring member 23 (rotating member) can be moved relative to the developer storage chamber 18a (developer storage portion).

図5(a),(c),(e)に示すように、回転軸23aが回転軸線方向に移動して間隙L1が略「0」となる。或いは、間隙L2が略「0」となる。その場合でも回転軸23aの駆動伝達部材30とは反対側の端面から突出した軸部23gが第2枠体18gの駆動伝達部材30とは反対側の内側面18g2に設けられた有底円筒状の第二支持部18i内から脱落することが無い。   As shown in FIGS. 5A, 5 </ b> C, and 5 </ b> E, the rotation shaft 23 a moves in the rotation axis direction, and the gap L <b> 1 becomes substantially “0”. Alternatively, the gap L2 is substantially “0”. Even in this case, a bottomed cylindrical shape in which the shaft portion 23g protruding from the end surface of the rotating shaft 23a opposite to the drive transmission member 30 is provided on the inner side surface 18g2 of the second frame 18g opposite to the drive transmission member 30. The second support portion 18i does not fall off.

また、駆動伝達部材30の駆動伝達部30aが回転軸23aの有底円筒状の被伝達部23f内から脱落することがない。そのように、回転軸23aの軸部23g、被伝達部23f、第2枠体18gの第二支持部18i、駆動伝達部材30の駆動伝達部30aの回転軸23aの回転軸線方向の長さが設定されている。   Further, the drive transmission portion 30a of the drive transmission member 30 does not fall out of the bottomed cylindrical transmitted portion 23f of the rotating shaft 23a. As described above, the length in the rotation axis direction of the rotation shaft 23a of the shaft 23g of the rotation shaft 23a, the transmitted portion 23f, the second support portion 18i of the second frame 18g, and the drive transmission portion 30a of the drive transmission member 30 is as follows. Is set.

このように、回転軸23aは、現像剤容器38に対して回転可能、且つ回転軸23aの回転軸線方向に移動可能に支持される。   As described above, the rotation shaft 23a is supported so as to be rotatable with respect to the developer container 38 and to be movable in the rotation axis direction of the rotation shaft 23a.

図5(a)に示すように、弾性部材29が圧縮や引っ張りの弾性変形が生じない自然状態のときを考慮する。このとき、第2枠体18gの駆動伝達部材30側の内側面18g1に内側に突出して設けられた第一係合部18mと、回転軸23aの被伝達部23fの先端部に設けられた第一被係合部23hとの係合は外れている。また、第2枠体18gの駆動伝達部材30とは反対側の内側面18g2に内側に突出して設けられた第二係合部18nと、回転軸23aの端部に設けられた第二被係合部23iとの係合は外れている。   As shown in FIG. 5A, a case where the elastic member 29 is in a natural state where no elastic deformation due to compression or tension occurs is considered. At this time, the first engagement portion 18m provided to project inwardly on the inner side surface 18g1 of the second frame 18g on the drive transmission member 30 side, and the first engagement portion 18f provided at the tip of the transmitted portion 23f of the rotating shaft 23a. The engagement with the one engaged portion 23h is disengaged. In addition, a second engagement portion 18n provided to project inwardly on the inner side surface 18g2 opposite to the drive transmission member 30 of the second frame 18g, and a second engaged portion provided at the end of the rotating shaft 23a. The engagement with the joint portion 23i is released.

図5(c),(e)に示すように、回転軸23aが回転軸線方向に移動して間隙L1,L2の大きさが変化した場合を考慮する。図5(c)では、回転軸23aが回転軸線方向に駆動伝達部材30側に移動して弾性部材29が圧縮の弾性変形をする。このとき、第2枠体18gの駆動伝達部材30側の内側面18g1に内側に突出して設けられた第一係合部18mと、回転軸23aの駆動伝達部材30側の端部に設けられた第一被係合部23hとが係合する。すると、回転軸23aは、図5(d)で示す第一位相Qに回転する。一方、弾性部材29の弾性力により回転軸23aが回転軸線方向に駆動伝達部材30と反対側に移動させる方向に復元力P1が生じる。   As shown in FIGS. 5C and 5E, the case where the rotation shaft 23a moves in the rotation axis direction and the sizes of the gaps L1 and L2 change is considered. In FIG.5 (c), the rotating shaft 23a moves to the drive transmission member 30 side in a rotating shaft direction, and the elastic member 29 carries out the elastic deformation of compression. At this time, the first engagement portion 18m provided to project inwardly on the inner side surface 18g1 on the drive transmission member 30 side of the second frame 18g and the end portion on the drive transmission member 30 side of the rotating shaft 23a are provided. The first engaged portion 23h is engaged. Then, the rotating shaft 23a rotates to the first phase Q shown in FIG. On the other hand, due to the elastic force of the elastic member 29, a restoring force P1 is generated in the direction in which the rotation shaft 23a moves in the direction of the rotation axis to the side opposite to the drive transmission member 30.

また、図5(e)では、回転軸23aが回転軸線方向に駆動伝達部材30と反対側に移動して弾性部材29が引っ張りの弾性変形をする。このとき、第2枠体18gの駆動伝達部材30とは反対側の内側面18g2に内側に突出して設けられた第二係合部18nと、回転軸23aの駆動伝達部材30とは反対側に設けられた第二被係合部23iとが係合する。すると、回転軸23aは、図5(d)の第一位相Qとは異なる図5(f)で示す第二位相Rに回転する。一方、弾性部材29の弾性力により回転軸23aが回転軸線方向に駆動伝達部材30側に移動させる方向に復元力P2が生じる。   Further, in FIG. 5E, the rotation shaft 23a moves in the direction of the rotation axis to the side opposite to the drive transmission member 30, and the elastic member 29 is elastically deformed by tension. At this time, the second engagement portion 18n provided on the inner side surface 18g2 opposite to the drive transmission member 30 of the second frame 18g and projecting inwardly, and the drive transmission member 30 of the rotary shaft 23a on the opposite side. The provided second engaged portion 23i is engaged. Then, the rotating shaft 23a rotates to the second phase R shown in FIG. 5 (f) different from the first phase Q in FIG. 5 (d). On the other hand, due to the elastic force of the elastic member 29, a restoring force P2 is generated in the direction in which the rotary shaft 23a is moved toward the drive transmission member 30 in the rotational axis direction.

即ち、撹拌部材23(回転部材)が現像剤収容室18a(現像剤収容部)に対して現像剤収容室18a(現像剤収容部)の長手方向に相対移動する第1の動作を行う。そのとき、撹拌部材23(回転部材)の第1の動作を変換機構により撹拌部材23(回転部材)を図5(d)に示す第一位相Qと、第一位相Qとは異なる図5(f)に示す第二位相Rとの間で回転させる回転動作へ変換する。   That is, the stirring member 23 (rotating member) performs a first operation of moving relative to the developer storage chamber 18a (developer storage portion) in the longitudinal direction of the developer storage chamber 18a (developer storage portion). At this time, the first phase Q shown in FIG. 5D is different from the first phase Q of the stirring member 23 (rotating member) shown in FIG. It converts into rotation operation rotated between the 2nd phase R shown in f).

本実施形態の変換機構は、撹拌部材23(回転部材)の回転軸23aの長手方向の一端部に設けられた第一被係合部23hを有する。更に、現像剤収容室18a(現像剤収容部)の長手方向の一方側の内側面18g1に設けられ、第一被係合部23hに係合可能な第一係合部18mを有する。更に、撹拌部材23(回転部材)の回転軸23aの長手方向の他端部に設けられた第二被係合部23iを有する。更に、現像剤収容室18a(現像剤収容部)の長手方向の他方側の内側面18g2に設けられ、第二被係合部23iに係合可能な第二係合部18nとを有して構成される。   The conversion mechanism of the present embodiment includes a first engaged portion 23h provided at one end of the rotating shaft 23a of the stirring member 23 (rotating member) in the longitudinal direction. Furthermore, it has the 1st engaging part 18m which is provided in the inner side surface 18g1 of the one side of the longitudinal direction of the developer accommodating chamber 18a (developer accommodating part), and can be engaged with the 1st to-be-engaged part 23h. Furthermore, it has the 2nd to-be-engaged part 23i provided in the other end part of the longitudinal direction of the rotating shaft 23a of the stirring member 23 (rotating member). Furthermore, it has a second engaging portion 18n provided on the inner side surface 18g2 on the other side in the longitudinal direction of the developer containing chamber 18a (developer containing portion) and engageable with the second engaged portion 23i. Composed.

第一係合部18mと第一被係合部23hとが係合する位相と、第二係合部18nと第二被係合部23iとが係合する位相とが異なるように設定されている。   The phase in which the first engaging portion 18m and the first engaged portion 23h are engaged is set different from the phase in which the second engaging portion 18n and the second engaged portion 23i are engaged. Yes.

図5(c)に示すように、第一係合部18mと第一被係合部23hとが係合する。すると、撹拌部材23(回転部材)は、図5(b)に示す位相から図5(d)に示す第一位相Qに回転する。一方、図5(e)に示すように、第二係合部18nと第二被係合部23iとが係合する。すると、撹拌部材23(回転部材)は、図5(b),(d)に示す位相から図5(f)に示す第二位相Rに回転する。   As shown in FIG.5 (c), the 1st engaging part 18m and the 1st to-be-engaged part 23h engage. Then, the stirring member 23 (rotating member) rotates from the phase shown in FIG. 5B to the first phase Q shown in FIG. On the other hand, as shown in FIG.5 (e), the 2nd engaging part 18n and the 2nd to-be-engaged part 23i engage. Then, the stirring member 23 (rotating member) rotates from the phase shown in FIGS. 5B and 5D to the second phase R shown in FIG.

これにより運搬等の振動が現像剤容器38に加わると、振動の加速度と、回転軸23aと撹拌シート23bからなる撹拌部材23に付着したトナーTの重量により撹拌部材23は、回転軸23aの回転軸線方向に往復移動する。また、回転軸23aは、図5(d)に示す第一位相Qと、図5(f)に示す第二位相Rとの間を往復回転する。そして、回転軸23aの回転軸線方向の往復移動と、往復回転とにより現像剤容器38内に収容されたトナーTを解して凝集を抑制できる。   Accordingly, when vibration such as transportation is applied to the developer container 38, the stirring member 23 is rotated by the rotation of the rotating shaft 23a by the acceleration of the vibration and the weight of the toner T attached to the stirring member 23 including the rotating shaft 23a and the stirring sheet 23b. Reciprocates in the axial direction. Moreover, the rotating shaft 23a reciprocates between the first phase Q shown in FIG. 5D and the second phase R shown in FIG. Then, the toner T accommodated in the developer container 38 is released by the reciprocating movement of the rotating shaft 23a in the rotation axis direction and the reciprocating rotation, thereby suppressing aggregation.

即ち、本実施形態の構成では、撹拌部材23が回転軸線方向に沿って往復移動可能であるため、運搬等の際の振動が回転軸線方向の両端側のどちらにかかっても、撹拌部材23を動かすことができる。つまり、運搬時において、運搬するときの条件によらず、現像剤容器38内のトナーTの凝集を有効に抑制することができる。   That is, in the configuration of the present embodiment, since the stirring member 23 can reciprocate along the rotation axis direction, the stirring member 23 can be moved regardless of which end of the rotation axis direction is affected by vibration during transportation. Can move. That is, at the time of transportation, aggregation of the toner T in the developer container 38 can be effectively suppressed regardless of the conditions for transportation.

また、現像剤容器38内にトナーTを解すための揺動板等の部材を別途設ける必要が無くなり、部品点数の増加も少ない。更に、別途設けた部材の体積分だけ現像剤容器38内に収容し得るトナーTが減量することも無い。   Further, it is not necessary to separately provide a member such as a swing plate for releasing the toner T in the developer container 38, and the number of parts is not increased. Further, the amount of toner T that can be accommodated in the developer container 38 is not reduced by the volume of the separately provided member.

また、本実施形態では、第2枠体18gの駆動伝達部材30側の内側面18g1に内側に突出して設けられた第一係合部18mと、回転軸23aの駆動伝達部材30側の端部に設けられた第一被係合部23hとの係合により回転軸23aが回転する。   Further, in the present embodiment, the first engagement portion 18m provided to project inwardly on the inner side surface 18g1 on the drive transmission member 30 side of the second frame 18g, and the end portion on the drive transmission member 30 side of the rotating shaft 23a. The rotating shaft 23a is rotated by the engagement with the first engaged portion 23h provided on the shaft.

或いは、第2枠体18gの駆動伝達部材30とは反対側の内側面18g2に内側に突出して設けられた第二係合部18nと、回転軸23aの駆動伝達部材30とは反対側に設けられた第二被係合部23iとの係合により回転軸23aが回転する。   Alternatively, the second engagement portion 18n provided on the inner side surface 18g2 opposite to the drive transmission member 30 of the second frame 18g and provided on the opposite side to the drive transmission member 30 of the rotary shaft 23a is provided. The rotation shaft 23a is rotated by the engagement with the second engaged portion 23i.

尚、プロセスカートリッジ7を運搬するときの条件次第では、現像剤容器38内のトナーTは、回転軸23aの回転軸線方向と、回転軸23aの回転方向の両方に動く。このためトナーTの移動方向が図5(d)に示す第一位相Qから図5(f)に示す第二位相Rに向くことも考えられる。   Depending on the conditions when the process cartridge 7 is transported, the toner T in the developer container 38 moves in both the rotation axis direction of the rotation shaft 23a and the rotation direction of the rotation shaft 23a. Therefore, it is conceivable that the moving direction of the toner T is directed from the first phase Q shown in FIG. 5D to the second phase R shown in FIG.

仮に撹拌部材23が回転軸23aの回転方向に全く規制されていなかったとすると、撹拌部材23はトナーTの動きに逆らわずに、ゆっくり回転する。このためトナーTを解して凝集を抑制する効果が低減してしまう恐れがある。   Assuming that the stirring member 23 is not restricted at all in the rotation direction of the rotating shaft 23a, the stirring member 23 rotates slowly without countering the movement of the toner T. For this reason, there is a possibility that the effect of suppressing the aggregation by releasing the toner T may be reduced.

そこで、本実施形態では、撹拌部材23の撹拌シート23bを現像剤収容室18aの内壁面18dに接触するように構成し、撹拌部材23の回転方向の動きを一定の力で規制した。   Therefore, in this embodiment, the stirring sheet 23b of the stirring member 23 is configured to come into contact with the inner wall surface 18d of the developer storage chamber 18a, and the movement of the stirring member 23 in the rotational direction is restricted with a constant force.

これにより撹拌部材23は、回転軸23aの回転軸線方向に移動する途中では回転し難い。第2枠体18gの駆動伝達部材30側の内側面18g1に内側に突出して設けられた第一係合部18mと、回転軸23aの駆動伝達部材30側の端部に設けられた第一被係合部23hとが係合したときに回転軸23aが回転する。   Thereby, the stirring member 23 is difficult to rotate during the movement in the direction of the rotation axis of the rotation shaft 23a. A first engagement portion 18m provided to project inwardly on the inner side surface 18g1 on the drive transmission member 30 side of the second frame 18g, and a first cover provided on the end portion on the drive transmission member 30 side of the rotating shaft 23a. The rotating shaft 23a rotates when the engaging portion 23h is engaged.

或いは、第2枠体18gの駆動伝達部材30とは反対側の内側面18g2に内側に突出して設けられた第二係合部18nと、回転軸23aの駆動伝達部材30とは反対側に設けられた第二被係合部23iとが係合したときに回転軸23aが回転する。   Alternatively, the second engagement portion 18n provided on the inner side surface 18g2 opposite to the drive transmission member 30 of the second frame 18g and provided on the opposite side to the drive transmission member 30 of the rotary shaft 23a is provided. The rotating shaft 23a rotates when the second engaged portion 23i thus engaged is engaged.

これによりプロセスカートリッジ7を運搬するときの条件によらず、現像剤容器38内のトナーTの凝集を抑制できる。   As a result, the aggregation of the toner T in the developer container 38 can be suppressed regardless of the conditions for transporting the process cartridge 7.

〔第2実施形態〕
次に、図6及び図7を用いて本発明に係る現像剤容器38、現像装置及びプロセスカートリッジ7の第2実施形態の構成について説明する。尚、前記第1実施形態と同様に構成したものは同一の符号、或いは符号が異なっても同一の部材名を付して説明を省略する。
[Second Embodiment]
Next, the configuration of the second embodiment of the developer container 38, the developing device, and the process cartridge 7 according to the present invention will be described with reference to FIGS. In addition, what was comprised similarly to the said 1st Embodiment attaches | subjects the same member name even if the same code | symbol or a code | symbol differs, and abbreviate | omits description.

前記第1実施形態では、第2枠体18gの駆動伝達部材30側の内側面18g1に内側に突出して設けられた第一係合部18mを考慮する。更に、第2枠体18gの駆動伝達部材30とは反対側の内側面18g2に内側に突出して設けられた第二係合部18nを考慮する。これらの斜面からなる係合部の位相が異なる。   In the said 1st Embodiment, the 1st engaging part 18m provided in the inner side surface 18g1 by the side of the drive transmission member 30 of the 2nd frame 18g and protruding inside is considered. Furthermore, the second engagement portion 18n provided to project inwardly on the inner side surface 18g2 opposite to the drive transmission member 30 of the second frame 18g is considered. The phases of the engaging portions composed of these slopes are different.

このため回転軸23aが図5(c)の右方向に移動して第一係合部18mと、回転軸23aの駆動伝達部材30側の端部に設けられた第一被係合部23hとが係合する。そのときに回転軸23aが図5(d)で示す第一位相Qまで回転する。更に、回転軸23aが図5(e)の左方向に移動して第二係合部18nと、回転軸23aの駆動伝達部材30とは反対側に設けられた第二被係合部23iとが係合したときに回転軸23aが図5(f)で示す第二位相Rまで回転する。そして、弾性部材29の弾性力により撹拌部材23は、図5(d)で示す第一位相Qと、図5(f)で示す第二位相Rとの間を回転軸23aの周方向に往復回転する。   For this reason, the rotating shaft 23a moves rightward in FIG. 5C, the first engaging portion 18m, and the first engaged portion 23h provided at the end of the rotating shaft 23a on the drive transmission member 30 side. Engage. At that time, the rotating shaft 23a rotates to the first phase Q shown in FIG. Further, the rotating shaft 23a moves to the left in FIG. 5E, and the second engaging portion 18n and the second engaged portion 23i provided on the opposite side of the rotating shaft 23a from the drive transmission member 30; , The rotary shaft 23a rotates to the second phase R shown in FIG. And the stirring member 23 reciprocates in the circumferential direction of the rotating shaft 23a between the first phase Q shown in FIG. 5 (d) and the second phase R shown in FIG. 5 (f) by the elastic force of the elastic member 29. Rotate.

本実施形態の変換機構は、第一係合部18m、第二係合部18n、第一被係合部23h、第二被係合部23iの代わりに以下の構成を有する。変換機構は、撹拌部材23(回転部材)に設けられ、現像剤収容室18a(現像剤収容部)の長手方向に対して傾斜したガイド部となる貫通長穴からなる第四被係合部23kを有する。更に、駆動伝達部材30に設けられ、第四被係合部23k(ガイド部)に沿って移動可能な係合部となる嵌合ピン34とを有する。   The conversion mechanism of the present embodiment has the following configuration instead of the first engaging portion 18m, the second engaging portion 18n, the first engaged portion 23h, and the second engaged portion 23i. The conversion mechanism is provided in the stirring member 23 (rotating member) and is a fourth engaged portion 23k including a through-hole serving as a guide portion inclined with respect to the longitudinal direction of the developer accommodating chamber 18a (developer accommodating portion). Have Furthermore, it has the fitting pin 34 which becomes the engaging part which is provided in the drive transmission member 30 and can move along the 4th to-be-engaged part 23k (guide part).

そして、撹拌部材23が現像剤収容室18aに対して現像剤収容室18a(現像剤収容部)の長手方向に相対移動する。すると、嵌合ピン34(係合部)が第四被係合部23k(ガイド部)に沿って移動する。その移動動作を撹拌部材23(回転部材)を第三位相Uと、第三位相Uとは異なる第四位相Vとの間で回転させる回転動作に変換する。   Then, the agitating member 23 moves relative to the developer accommodating chamber 18a in the longitudinal direction of the developer accommodating chamber 18a (developer accommodating portion). Then, the fitting pin 34 (engagement portion) moves along the fourth engaged portion 23k (guide portion). The moving operation is converted into a rotation operation in which the stirring member 23 (rotating member) is rotated between the third phase U and a fourth phase V different from the third phase U.

回転軸23aの有底円筒状の第三被係合部23jを貫通して回転軸23aの回転軸線方向に対して傾斜して設けた貫通長穴からなる第四被係合部23k内を駆動伝達部材30に設けた嵌合ピン34が摺動移動する。これにより回転軸23aが回転軸線方向に移動したとき、弾性部材29の弾性力により撹拌部材23は、図7(d)で示す第三位相Uと、図7(f)で示す第四位相Vとの間を回転軸23aの周方向に往復回転する。   Drives through the fourth engaged portion 23k, which is formed by a through-hole formed through the bottomed cylindrical third engaged portion 23j of the rotation shaft 23a and inclined with respect to the rotation axis direction of the rotation shaft 23a. The fitting pin 34 provided on the transmission member 30 slides. Thus, when the rotation shaft 23a moves in the rotation axis direction, the stirring member 23 is moved by the elastic force of the elastic member 29 so that the third phase U shown in FIG. 7D and the fourth phase V shown in FIG. And reciprocally rotate in the circumferential direction of the rotary shaft 23a.

<現像剤容器>
図6及び図7を用いて、現像剤容器38の構成について説明する。図6(a),(b)は、本実施形態の現像剤容器38の構成を示す分解斜視図である。図6(a)は、駆動伝達部材30側の一端から見た分解斜視図である。図6(b)は、第1枠体18fを除いた状態における現像剤容器38の分解平面図である。図7(a),(c),(e)は、本実施形態の第1枠体18fを除いた状態における現像剤容器38の構成を示す平面説明図である。図7(b),(d),(f)は、本実施形態の現像剤容器38の構成を示す断面説明図である。
<Developer container>
The configuration of the developer container 38 will be described with reference to FIGS. 6 and 7. 6A and 6B are exploded perspective views showing the configuration of the developer container 38 of the present embodiment. FIG. 6A is an exploded perspective view seen from one end on the drive transmission member 30 side. FIG. 6B is an exploded plan view of the developer container 38 in a state where the first frame 18f is removed. FIGS. 7A, 7C, and 7E are plan explanatory views showing the configuration of the developer container 38 in a state where the first frame 18f of the present embodiment is removed. 7B, 7D, and 7F are cross-sectional explanatory views showing the configuration of the developer container 38 of the present embodiment.

図6及び図7に示す現像剤容器38の内部には、撹拌部材23が設けられている。撹拌部材23は、回転軸23aと、撹拌シート23bと、回転軸23aの回転軸線方向の駆動伝達部材30と反対側に設けられた軸部23gを有する。更に、回転軸23aの回転軸線方向の駆動伝達部材30側に設けられた有底円筒状の第三被係合部23jを有する。更に、第三被係合部23jの底面から突出した突起部23cを有する。更に、第三被係合部23jを貫通して外部と連通する貫通長穴からなる第四被係合部23kとを有して構成される。   A stirring member 23 is provided inside the developer container 38 shown in FIGS. The agitating member 23 includes a rotating shaft 23a, an agitating sheet 23b, and a shaft portion 23g provided on the opposite side to the drive transmission member 30 in the rotating axis direction of the rotating shaft 23a. Furthermore, it has a bottomed cylindrical third engaged portion 23j provided on the drive transmission member 30 side in the rotation axis direction of the rotation shaft 23a. Furthermore, it has the projection part 23c which protruded from the bottom face of the 3rd to-be-engaged part 23j. Furthermore, it has the 4th to-be-engaged part 23k which consists of a penetration long hole which penetrates the 3rd to-be-engaged part 23j and connects with the exterior.

第三被係合部23jを貫通する貫通長穴からなる第四被係合部23kは、回転軸23aの回転軸線方向及び回転方向に対して、所定の傾きを有して設けられている。本実施形態では、前述した第1実施形態の回転軸23aの回転軸線方向端部に設けた第一被係合部23h及び第二被係合部23iは設けていない。   The fourth engaged portion 23k, which is a through hole that penetrates the third engaged portion 23j, is provided with a predetermined inclination with respect to the rotation axis direction and the rotation direction of the rotation shaft 23a. In the present embodiment, the first engaged portion 23h and the second engaged portion 23i provided at the rotation axis direction end portion of the rotation shaft 23a of the first embodiment are not provided.

図6(a)に示すように、現像剤容器38は、第1枠体18fと第2枠体18gとにより構成される。本実施形態の第2枠体18gの内側面18g1,18g2には、前述した第1実施形態の第一係合部18m及び第二係合部18nは設けていない。第2枠体18gの駆動伝達部材30側の内側面18g1には、内側面18g1を貫通する貫通孔の周縁部から外側に突出した円筒部からなる第一支持部18hが設けられている。一方、第2枠体18gの駆動伝達部材30とは反対側の内側面18g2には、内側面18g2を貫通する貫通孔の周縁部から外側に突出した有底円筒状の第二支持部18iが設けられる。   As shown in FIG. 6A, the developer container 38 includes a first frame 18f and a second frame 18g. The first engagement portion 18m and the second engagement portion 18n of the first embodiment described above are not provided on the inner side surfaces 18g1 and 18g2 of the second frame 18g of the present embodiment. The inner surface 18g1 on the drive transmission member 30 side of the second frame 18g is provided with a first support portion 18h composed of a cylindrical portion that protrudes outward from the peripheral edge portion of the through hole that penetrates the inner surface 18g1. On the other hand, on the inner side surface 18g2 of the second frame 18g opposite to the drive transmission member 30, there is a bottomed cylindrical second support portion 18i that protrudes outward from the peripheral edge of the through hole that penetrates the inner side surface 18g2. Provided.

現像剤容器38の長手方向の一端部に設けられる駆動伝達部材30は、図示しない駆動源となるモータからの回転駆動力がギア列等の駆動伝達手段を介して伝達されるギア部30cを有する。更に、筒状の第一支持部18h内に嵌入されて摺動可能な被支持部30bを有する。更に、回転軸23aの端部に設けられた有底円筒状の第三被係合部23j内に摺動可能に嵌入される軸部からなる円筒形状の支持部30eを有する。更に、支持部30eの外周面を貫通して設けられる嵌合部30fと、支持部30eの先端部に突出して設けられる突起部30dとを有して構成される。   The drive transmission member 30 provided at one end in the longitudinal direction of the developer container 38 has a gear portion 30c to which a rotational driving force from a motor (not shown) serving as a drive source is transmitted via a drive transmission means such as a gear train. . Furthermore, it has the to-be-slidable supported part 30b inserted in the cylindrical 1st support part 18h. Furthermore, it has the cylindrical support part 30e which consists of a shaft part slidably inserted in a bottomed cylindrical third engaged part 23j provided at the end of the rotating shaft 23a. Furthermore, it has the fitting part 30f provided penetrating the outer peripheral surface of the support part 30e, and the protrusion part 30d provided by protruding at the front-end | tip part of the support part 30e.

<現像剤容器の組み立て>
図6及び図7を用いて現像剤容器38の組み立て手順について説明する。現像剤容器38の組立時には、先ず、図6(a)に示す撹拌シート23bの固定部23b1を回転軸23aに固定する。その後、撹拌部材23の回転軸23aの駆動伝達部材30側の端部に設けられた有底円筒状の第三被係合部23j内の底面に突出して設けられた突起部23cにコイルバネからなる弾性部材29の一端部を嵌装して圧入する。もしくは、例えばコイルバネなどからなる弾性部材29を撹拌部材23の突起部23cに嵌装せずに、駆動伝達部材30における支持部30eの先端部に突出して設けられる突起部30dに弾性部材29を嵌装して圧入しても良い。
<Assembly of developer container>
A procedure for assembling the developer container 38 will be described with reference to FIGS. When assembling the developer container 38, first, the fixing portion 23b1 of the stirring sheet 23b shown in FIG. 6A is fixed to the rotating shaft 23a. After that, the projecting portion 23c provided on the bottom surface in the bottomed cylindrical third engaged portion 23j provided at the end of the rotating shaft 23a of the stirring member 23 on the drive transmission member 30 side is formed by a coil spring. One end of the elastic member 29 is fitted and press-fitted. Alternatively, for example, the elastic member 29 made of a coil spring or the like is not fitted to the protrusion 23c of the stirring member 23, and the elastic member 29 is fitted to the protrusion 30d provided to protrude from the tip of the support 30e of the drive transmission member 30. It may be press-fitted.

その状態で、第2枠体18gの駆動伝達部材30とは反対側の内側面18g2を貫通して設けられた有底円筒状の第二支持部18i内に、撹拌部材23の回転軸23aの駆動伝達部材30とは反対側の端部に設けられた軸部23gを挿入する。   In this state, the rotating shaft 23a of the stirring member 23 is placed in the bottomed cylindrical second support portion 18i provided through the inner side surface 18g2 opposite to the drive transmission member 30 of the second frame 18g. A shaft portion 23g provided at the end opposite to the drive transmission member 30 is inserted.

そして、撹拌部材23の回転軸23aの駆動伝達部材30側の端部に設けられた有底円筒状の第三被係合部23jを、第2枠体18gの駆動伝達部材30側の内側面18g1を貫通して設けられた貫通穴18g1aが対向する位置まで第2枠体18g内に挿入する。   Then, the bottomed cylindrical third engaged portion 23j provided at the end of the rotating shaft 23a of the stirring member 23 on the drive transmission member 30 side is connected to the inner surface of the second frame 18g on the drive transmission member 30 side. It inserts in the 2nd frame 18g to the position where the through-hole 18g1a provided penetrating 18g1 opposes.

次に、第一支持部18hの内周面にシール部材33を圧入した後に、駆動伝達部材30を第一支持部18h内に挿入し、円筒状の第一支持部18hの内周面内に支持部30eとシール部材33と被支持部30bとを挿入する。このとき、貫通穴18g1a内に挿入された軸部からなる支持部30eは、回転軸23aの端部に設けられた有底円筒状の第三被係合部23j内に摺動可能に嵌入される。   Next, after the seal member 33 is press-fitted into the inner peripheral surface of the first support portion 18h, the drive transmission member 30 is inserted into the first support portion 18h, and is inserted into the inner peripheral surface of the cylindrical first support portion 18h. The support part 30e, the sealing member 33, and the supported part 30b are inserted. At this time, the support portion 30e including the shaft portion inserted into the through hole 18g1a is slidably fitted into a bottomed cylindrical third engaged portion 23j provided at the end of the rotating shaft 23a. The

そして、始めに第三被係合部23j内に設けられた突起部23cの一端部に弾性部材29が圧入されていた場合は、弾性部材29の他端部内に支持部30eの先端部から突出した突起部30dが圧入される。また、始めに駆動伝達部材30における支持部30eの先端部から突出した突起部30dに弾性部材29が圧入されていた場合は、弾性部材29の他端部内に第三被係合部23j内に突出した突起部23cが圧入される。   Then, when the elastic member 29 is first press-fitted into one end of the projection 23c provided in the third engaged portion 23j, it protrudes from the tip of the support 30e into the other end of the elastic member 29. The protruding portion 30d is press-fitted. Further, when the elastic member 29 is first press-fitted into the protrusion 30d protruding from the distal end portion of the support portion 30e in the drive transmission member 30, the elastic member 29 is placed in the third engaged portion 23j in the other end portion. The protruding protrusion 23c is press-fitted.

このとき、駆動伝達部材30の軸部からなる支持部30eの外周面に設けられた凹部からなる嵌合部30fを考慮する。この嵌合部30fを、駆動伝達部材30を回転させて回転軸23aの端部に設けられた有底円筒状の第三被係合部23jを貫通する貫通長穴からなる第四被係合部23kに対向する位置に合わせる。   At this time, the fitting portion 30f formed of a concave portion provided on the outer peripheral surface of the support portion 30e formed of the shaft portion of the drive transmission member 30 is considered. The fitting portion 30f is a fourth engaged portion formed of a through long hole penetrating the bottomed cylindrical third engaged portion 23j provided at the end of the rotating shaft 23a by rotating the drive transmission member 30. Align with the position facing the part 23k.

そして、嵌合ピン34を、貫通長穴からなる第四被係合部23k内に挿入する。そして、駆動伝達部材30の支持部30eの外周面に設けられた凹部からなる嵌合部30f内に圧入する。駆動伝達部材30の支持部30eの嵌合部30f内に圧入された嵌合ピン34は、貫通長穴からなる第四被係合部23kの長穴に沿って摺動可能である。   And the fitting pin 34 is inserted in the 4th to-be-engaged part 23k which consists of a penetration long hole. And it press-fits in the fitting part 30f which consists of a recessed part provided in the outer peripheral surface of the support part 30e of the drive transmission member 30. FIG. The fitting pin 34 press-fitted into the fitting portion 30f of the support portion 30e of the drive transmission member 30 is slidable along the long hole of the fourth engaged portion 23k formed of a through-hole.

その後、第1枠体18fと第2枠体18gとを溶着等で一体的に結合する。開口18cは、図示しない封止部材により剥離可能に封止される。図示しない充填口から現像剤容器38内にトナーTを充填した後、図示しない充填口を閉塞する。   Thereafter, the first frame 18f and the second frame 18g are integrally coupled by welding or the like. The opening 18c is detachably sealed by a sealing member (not shown). After the toner T is filled into the developer container 38 from a filling port (not shown), the filling port (not shown) is closed.

図7(a)に示すように、弾性部材29が圧縮または引っ張りのない自然長にあるときを考慮する。このとき、回転軸23aの回転軸線方向において、回転軸23aの駆動伝達部材30側の端面23a1と、第2枠体18gの駆動伝達部材30側の内側面18g1との間には間隙L3が形成される。一方、回転軸23aの駆動伝達部材30とは反対側の端面23a2と、第2枠体18gの駆動伝達部材30とは反対側の内側面18g2との間には間隙L4が形成される。   As shown in FIG. 7A, the case where the elastic member 29 is in a natural length without compression or tension is considered. At this time, a gap L3 is formed between the end surface 23a1 on the drive transmission member 30 side of the rotation shaft 23a and the inner side surface 18g1 of the second frame 18g on the drive transmission member 30 side in the rotation axis direction of the rotation shaft 23a. Is done. On the other hand, a gap L4 is formed between the end surface 23a2 of the rotating shaft 23a opposite to the drive transmission member 30 and the inner surface 18g2 of the second frame 18g opposite to the drive transmission member 30.

図7(c)に示すように、弾性部材29が圧縮されて嵌合ピン34が貫通長穴からなる第四被係合部23kの駆動伝達部材30とは反対側の端部に当接して間隙L3が最小となった場合を考慮する。この場合でも回転軸23aの駆動伝達部材30とは反対側の端面から突出した軸部23gは、第2枠体18gの駆動伝達部材30とは反対側の内側面18g2に設けられた第二支持部18iから脱落しない長さに設定されている。   As shown in FIG. 7C, the elastic member 29 is compressed and the fitting pin 34 comes into contact with the end of the fourth engaged portion 23k, which is a through-hole, opposite to the drive transmission member 30. Consider the case where the gap L3 is minimized. Even in this case, the shaft portion 23g protruding from the end surface of the rotating shaft 23a opposite to the drive transmission member 30 is the second support provided on the inner side surface 18g2 of the second frame 18g opposite to the drive transmission member 30. The length is set so as not to drop off from the portion 18i.

一方、図7(e)に示すように、弾性部材29が引っ張られて嵌合ピン34が貫通長穴からなる第四被係合部23kの駆動伝達部材30側の端部に当接して間隙L4が最小となった場合を考慮する。この場合でも駆動伝達部材30の支持部30eは、回転軸23aの第三被係合部23jから脱落しない長さに設定されている。   On the other hand, as shown in FIG. 7E, the elastic member 29 is pulled and the fitting pin 34 comes into contact with the end of the fourth engaged portion 23k, which is a through-hole, on the side of the drive transmission member 30, and the gap Consider the case where L4 is minimized. Even in this case, the support portion 30e of the drive transmission member 30 is set to a length that does not drop off from the third engaged portion 23j of the rotating shaft 23a.

このように、撹拌部材23は、現像剤収容室18aに対して回転可能で、且つ回転軸23aの回転軸線方向に移動可能に支持される。   Thus, the stirring member 23 is supported so as to be rotatable with respect to the developer storage chamber 18a and to be movable in the direction of the rotation axis of the rotation shaft 23a.

図7(c),(e)に示すように、撹拌部材23が回転軸23aの回転軸線方向に移動して、間隙L3,L4の大きさが変化した場合には、弾性部材29が圧縮または引っ張りの弾性変形をする。このとき、弾性部材29の弾性力により撹拌部材23を移動前の位置に戻す方向に復元力P1,P2が生じる。   As shown in FIGS. 7C and 7E, when the stirring member 23 moves in the rotation axis direction of the rotation shaft 23a and the size of the gaps L3 and L4 changes, the elastic member 29 is compressed or Elastic deformation of the tension. At this time, restoring forces P1 and P2 are generated in a direction to return the stirring member 23 to the position before the movement by the elastic force of the elastic member 29.

また、撹拌部材23が回転軸23aの回転軸線方向に移動したとき、それに伴って貫通長穴からなる第四被係合部23k内における嵌合ピン34の位置が回転軸23aの回転軸線方向に移動する。このとき、第四被係合部23kは、回転軸23aの回転軸線方向に対して所定の傾きを持っている。これにより撹拌部材23が図7(c)の右方向に移動した場合は、撹拌部材23は、図7(b)に示す位相から図7(d)に示す第三位相Uに回転する。   Further, when the agitating member 23 moves in the direction of the rotation axis of the rotation shaft 23a, the position of the fitting pin 34 in the fourth engaged portion 23k made of a through-hole is accordingly moved in the direction of the rotation axis of the rotation shaft 23a. Moving. At this time, the fourth engaged portion 23k has a predetermined inclination with respect to the rotation axis direction of the rotation shaft 23a. As a result, when the stirring member 23 moves to the right in FIG. 7C, the stirring member 23 rotates from the phase shown in FIG. 7B to the third phase U shown in FIG. 7D.

また、撹拌部材23が図7(e)の左方向に移動した場合は、撹拌部材23は、図7(d)に示す第三位相Uとは異なる、図7(f)に示す第四位相Vに回転する。   Moreover, when the stirring member 23 moves to the left direction of FIG.7 (e), the stirring member 23 differs from the 3rd phase U shown in FIG.7 (d), and the 4th phase shown in FIG.7 (f). Rotate to V.

このように構成することで、プロセスカートリッジ7を運搬する際の振動が現像剤容器38に加わると、振動の加速度と、撹拌部材23に付着したトナーTの重量により撹拌部材23は、回転軸23aの回転軸線方向に往復移動する。また、図7(d)に示す第三位相Uと、図7(f)に示す第四位相Vとの範囲で回転軸23aの周方向に往復回転する。回転軸23aの回転軸線方向の往復移動と、回転軸23aの周方向の往復回転により現像剤収容室18a内のトナーTを解して凝集を抑制できる。   By virtue of such a configuration, when vibration during transport of the process cartridge 7 is applied to the developer container 38, the stirring member 23 is rotated by the rotation shaft 23 a due to acceleration of vibration and the weight of the toner T attached to the stirring member 23. Reciprocates in the direction of the rotation axis. Moreover, it reciprocates in the circumferential direction of the rotating shaft 23a within the range of the third phase U shown in FIG. 7 (d) and the fourth phase V shown in FIG. 7 (f). Aggregation can be suppressed by releasing the toner T in the developer accommodating chamber 18a by the reciprocating movement of the rotating shaft 23a in the rotating axis direction and the reciprocating rotation of the rotating shaft 23a in the circumferential direction.

即ち、本実施形態の構成では、撹拌部材23が回転軸線方向に沿って往復移動可能であるため、運搬等の際の振動が回転軸線方向の両端側のどちらにかかっても、撹拌部材23を動かすことができる。つまり、運搬時において、運搬するときの条件によらず、現像剤容器38内のトナーTの凝集を有効に抑制することができる。   That is, in the configuration of the present embodiment, since the stirring member 23 can reciprocate along the rotation axis direction, the stirring member 23 can be moved regardless of which end of the rotation axis direction is affected by vibration during transportation. Can move. That is, at the time of transportation, aggregation of the toner T in the developer container 38 can be effectively suppressed regardless of the conditions for transportation.

また、現像剤容器38内にトナーTを解すための揺動板等の部材を別途設ける必要が無くなり、部品点数の増加も少ない。更に、別途設けた部材の体積分だけ現像剤容器38内に収容し得るトナーTが減量することも無い。   Further, it is not necessary to separately provide a member such as a swing plate for releasing the toner T in the developer container 38, and the number of parts is not increased. Further, the amount of toner T that can be accommodated in the developer container 38 is not reduced by the volume of the separately provided member.

特に、本実施形態では、撹拌部材23が回転軸23aの回転軸線方向に移動することができる。すると、回転軸23aに回転軸23aの回転軸線方向に対して所定の傾きを持って設けた貫通長穴からなる第四被係合部23k内を駆動伝達部材30に設けた嵌合ピン34が摺動移動することができる。これにより、撹拌部材23を回転軸23aの周方向に往復回転するため撹拌部材23の回転負荷が駆動源への影響が少ない。また、他の構成は前記第1実施形態と同様に構成され、同様の効果を得ることが出来る。   In particular, in this embodiment, the stirring member 23 can move in the rotation axis direction of the rotation shaft 23a. Then, the fitting pin 34 provided in the drive transmission member 30 inside the fourth engaged portion 23k formed of a through-hole formed in the rotation shaft 23a with a predetermined inclination with respect to the rotation axis direction of the rotation shaft 23a. It can slide. Thereby, since the stirring member 23 is reciprocated in the circumferential direction of the rotating shaft 23a, the rotational load of the stirring member 23 has little influence on the drive source. Other configurations are the same as those in the first embodiment, and the same effects can be obtained.

〔第3実施形態〕
次に、図8を用いて本発明に係る現像剤容器38、現像装置及びプロセスカートリッジ7の第3実施形態の構成について説明する。図8(a)は、本実施形態の現像剤容器38の構成を示す分解斜視図である。図8(b)は、本実施形態の現像剤容器38の構成を示す断面説明図である。尚、前記各実施形態と同様に構成したものは同一の符号、或いは符号が異なっても同一の部材名を付して説明を省略する。
[Third Embodiment]
Next, the configuration of the third embodiment of the developer container 38, the developing device, and the process cartridge 7 according to the present invention will be described with reference to FIG. FIG. 8A is an exploded perspective view showing the configuration of the developer container 38 of the present embodiment. FIG. 8B is a cross-sectional explanatory view showing the configuration of the developer container 38 of the present embodiment. In addition, what was comprised similarly to each said embodiment attaches | subjects the same member name even if the same code | symbol or a code | symbol differs, and abbreviate | omits description.

前記第2実施形態では、回転軸23aに回転軸23aの回転軸線方向に対して所定の傾きを持って設けた貫通長穴からなる第四被係合部23kを設けた。本実施形態では、駆動伝達部材30の軸部からなる支持部30eの外周面に支持部30eの回転軸線方向に対して所定の傾きを持って設けた摺動溝からなる被係合部30gを設けた。   In the said 2nd Embodiment, the 4th to-be-engaged part 23k which consists of a through long hole provided in the rotating shaft 23a with the predetermined inclination with respect to the rotating shaft direction of the rotating shaft 23a was provided. In the present embodiment, the engaged portion 30g made of a sliding groove is provided on the outer peripheral surface of the support portion 30e made of the shaft portion of the drive transmission member 30 with a predetermined inclination with respect to the rotation axis direction of the support portion 30e. Provided.

本実施形態の変換機構は、駆動伝達部材30に設けられ、現像剤収容室18a(現像剤収容部)の長手方向に対して傾斜したガイド部となる被係合部30gを有する。更に、撹拌部材23(回転部材)の回転軸23aに設けられ、被係合部30g(ガイド部)に沿って移動可能な係合部となる嵌合ピン34を有する。   The conversion mechanism of this embodiment includes an engaged portion 30g that is provided in the drive transmission member 30 and serves as a guide portion that is inclined with respect to the longitudinal direction of the developer storage chamber 18a (developer storage portion). Furthermore, it has the fitting pin 34 which becomes an engaging part which is provided in the rotating shaft 23a of the stirring member 23 (rotating member), and can move along the to-be-engaged part 30g (guide part).

撹拌部材23(回転部材)が現像剤収容室18a(現像剤収容部)に対して現像剤収容室18aの長手方向に相対移動する。すると、嵌合ピン34(係合部)が被係合部30g(ガイド部)に沿って移動する。その移動動作を撹拌部材23を第三位相Uと、第三位相Uとは異なる第四位相Vとの間で回転させる回転動作に変換する。   The stirring member 23 (rotating member) moves relative to the developer accommodating chamber 18a (developer accommodating portion) in the longitudinal direction of the developer accommodating chamber 18a. Then, the fitting pin 34 (engagement part) moves along the to-be-engaged part 30g (guide part). The movement operation is converted into a rotation operation for rotating the stirring member 23 between the third phase U and a fourth phase V different from the third phase U.

<現像剤容器の組み立て>
図8を用いて現像剤容器38の組み立て手順について説明する。現像剤容器38の組立時には、先ず、図8(a)に示す撹拌シート23bの固定部23b1を回転軸23aに固定する。その後、撹拌部材23の回転軸23aの駆動伝達部材30側の端部に設けられた有底円筒状の第三被係合部23j内の底面に突出して設けられた図示しない突起部23cにコイルバネからなる弾性部材29の一端部を嵌装して圧入する。もしくは、例えばコイルバネなどからなる弾性部材29を撹拌部材23の突起部23cに嵌装せずに、駆動伝達部材30における支持部30eの先端部に突出して設けられる突起部30dに弾性部材29を嵌装して圧入しても良い。
<Assembly of developer container>
The procedure for assembling the developer container 38 will be described with reference to FIG. When assembling the developer container 38, first, the fixing portion 23b1 of the stirring sheet 23b shown in FIG. 8A is fixed to the rotating shaft 23a. Thereafter, a coil spring is applied to a projection 23c (not shown) provided to protrude from the bottom surface of the bottomed cylindrical third engaged portion 23j provided at the end of the rotating shaft 23a of the stirring member 23 on the drive transmission member 30 side. One end portion of the elastic member 29 is fitted and press-fitted. Alternatively, for example, the elastic member 29 made of a coil spring or the like is not fitted to the protrusion 23c of the stirring member 23, and the elastic member 29 is fitted to the protrusion 30d provided to protrude from the tip of the support 30e of the drive transmission member 30. It may be press-fitted.

その状態で、第2枠体18gの駆動伝達部材30とは反対側の内側面18g2を貫通して設けられた有底円筒状の第二支持部18i内に、撹拌部材23の回転軸23aの駆動伝達部材30とは反対側の端部に設けられた軸部23gを挿入する。   In this state, the rotating shaft 23a of the stirring member 23 is placed in the bottomed cylindrical second support portion 18i provided through the inner side surface 18g2 opposite to the drive transmission member 30 of the second frame 18g. A shaft portion 23g provided at the end opposite to the drive transmission member 30 is inserted.

そして、撹拌部材23の回転軸23aの駆動伝達部材30側の端部に設けられた有底円筒状の第三被係合部23jを、第2枠体18gの駆動伝達部材30側の内側面18g1を貫通して設けられた貫通穴18g1aが対向する位置まで第2枠体18g内に挿入する。   Then, the bottomed cylindrical third engaged portion 23j provided at the end of the rotating shaft 23a of the stirring member 23 on the drive transmission member 30 side is connected to the inner surface of the second frame 18g on the drive transmission member 30 side. It inserts in the 2nd frame 18g to the position where the through-hole 18g1a provided penetrating 18g1 opposes.

次に、第一支持部18hの内周面にシール部材33を圧入した後に、駆動伝達部材30を第一支持部18h内に挿入し、円筒状の第一支持部18hの内周面内に支持部30eとシール部材33と被支持部30bとを挿入する。このとき、貫通穴18g1a内に挿入された軸部からなる支持部30eは、回転軸23aの端部に設けられた有底円筒状の第三被係合部23j内に摺動可能に嵌入される。   Next, after the seal member 33 is press-fitted into the inner peripheral surface of the first support portion 18h, the drive transmission member 30 is inserted into the first support portion 18h, and is inserted into the inner peripheral surface of the cylindrical first support portion 18h. The support part 30e, the sealing member 33, and the supported part 30b are inserted. At this time, the support portion 30e including the shaft portion inserted into the through hole 18g1a is slidably fitted into a bottomed cylindrical third engaged portion 23j provided at the end of the rotating shaft 23a. The

そして、始めに第三被係合部23j内に設けられた図示しない突起部23cの一端部に弾性部材29が圧入されていた場合は、弾性部材29の他端部内に支持部30eの先端部から突出した突起部30dが圧入される。また、始めに駆動伝達部材30における支持部30eの先端部から突出した突起部30dに弾性部材29が圧入されていた場合は、弾性部材29の他端部内に第三被係合部23j内に突出した突起部23cが圧入される。   When the elastic member 29 is first press-fitted into one end portion of a projection 23c (not shown) provided in the third engaged portion 23j, the distal end portion of the support portion 30e is inserted into the other end portion of the elastic member 29. A protruding portion 30d protruding from is press-fitted. Further, when the elastic member 29 is first press-fitted into the protrusion 30d protruding from the distal end portion of the support portion 30e in the drive transmission member 30, the elastic member 29 is placed in the third engaged portion 23j in the other end portion. The protruding protrusion 23c is press-fitted.

このとき、駆動伝達部材30の軸部からなる支持部30eの外周面に設けられた被係合部30gを考慮する。駆動伝達部材30を回転させて被係合部30gを回転軸23aの端部に設けられた有底円筒状の第三被係合部23jを貫通する貫通穴からなる嵌合部23mに対向する位置に合わせる。   At this time, the engaged portion 30g provided on the outer peripheral surface of the support portion 30e formed of the shaft portion of the drive transmission member 30 is considered. The drive transmitting member 30 is rotated so that the engaged portion 30g is opposed to the fitting portion 23m formed of a through hole penetrating the bottomed cylindrical third engaged portion 23j provided at the end of the rotating shaft 23a. Adjust to position.

そして、嵌合ピン34を、嵌合部23m内に圧入して凹形状の摺動溝からなる被係合部30g内に摺動可能に係合する。嵌合ピン34は、被係合部30gの凹形状の摺動溝に沿って摺動可能に係合する。尚、支持部30eが筒状体で構成された場合には、被係合部30gは、筒状体の反対面に亘って連通する穴形状であっても良い。   Then, the fitting pin 34 is press-fitted into the fitting portion 23m and slidably engaged with the engaged portion 30g formed of a concave sliding groove. The fitting pin 34 is slidably engaged along the concave sliding groove of the engaged portion 30g. In addition, when the support part 30e is comprised with the cylindrical body, the to-be-engaged part 30g may be the hole shape connected over the other surface of a cylindrical body.

その後、第1枠体18fと第2枠体18gとを溶着等で一体的に結合する。開口18cは、図示しない封止部材により剥離可能に封止される。図示しない充填口から現像剤容器38内にトナーTを充填した後、図示しない充填口を閉塞する。   Thereafter, the first frame 18f and the second frame 18g are integrally coupled by welding or the like. The opening 18c is detachably sealed by a sealing member (not shown). After the toner T is filled into the developer container 38 from a filling port (not shown), the filling port (not shown) is closed.

撹拌部材23は、回転軸23aの回転軸線方向に往復移動するとともに、図7(d)に示して前述した第三位相Uと、図7(f)に示して前述した第四位相Vとの間を回転軸23aの周方向に往復回転する。そして、撹拌部材23の回転軸23aの回転軸線方向の往復移動と、回転軸23aの周方向の往復回転により現像剤収容室18a内のトナーTを解して凝集を抑制できる。   The agitating member 23 reciprocates in the rotation axis direction of the rotation shaft 23a, and the third phase U shown in FIG. 7D and the fourth phase V shown in FIG. It reciprocates in the circumferential direction of the rotating shaft 23a. Then, the toner T in the developer storage chamber 18a can be released by reciprocating the rotating shaft 23a of the rotating shaft 23a of the stirring member 23 and reciprocating in the circumferential direction of the rotating shaft 23a, thereby suppressing aggregation.

即ち、本実施形態の構成では、撹拌部材23が回転軸線方向に沿って往復移動可能であるため、運搬等の際の振動が回転軸線方向の両端側のどちらにかかっても、撹拌部材23を動かすことができる。つまり、運搬時において、運搬するときの条件によらず、現像剤容器38内のトナーTの凝集を有効に抑制することができる。   That is, in the configuration of the present embodiment, since the stirring member 23 can reciprocate along the rotation axis direction, the stirring member 23 can be moved regardless of which end of the rotation axis direction is affected by vibration during transportation. Can move. That is, at the time of transportation, aggregation of the toner T in the developer container 38 can be effectively suppressed regardless of the conditions for transportation.

また、現像剤容器38内にトナーTを解すための揺動板等の部材を別途設ける必要が無くなり、部品点数の増加も少ない。更に、別途設けた部材の体積分だけ現像剤容器38内に収容し得るトナーTが減量することも無い。   Further, it is not necessary to separately provide a member such as a swing plate for releasing the toner T in the developer container 38, and the number of parts is not increased. Further, the amount of toner T that can be accommodated in the developer container 38 is not reduced by the volume of the separately provided member.

特に、本実施形態では、撹拌部材23が回転軸23aの回転軸線方向に移動することができる。すると、駆動伝達部材30の支持部30eに支持部30eの回転軸線方向に対して所定の傾きを持って設けた被係合部30gに沿って回転軸23aに設けた嵌合ピン34が摺動移動することができる。これにより撹拌部材23を回転軸23aの周方向に往復回転するため撹拌部材23の回転負荷が駆動源への影響が少ない。また、他の構成は前記各実施形態と同様に構成され、同様の効果を得ることが出来る。   In particular, in this embodiment, the stirring member 23 can move in the rotation axis direction of the rotation shaft 23a. Then, the fitting pin 34 provided on the rotation shaft 23a slides along the engaged portion 30g provided on the support portion 30e of the drive transmission member 30 with a predetermined inclination with respect to the rotation axis direction of the support portion 30e. Can move. Thereby, since the stirring member 23 is reciprocated in the circumferential direction of the rotating shaft 23a, the rotational load of the stirring member 23 has little influence on the drive source. Other configurations are the same as those in the above-described embodiments, and the same effects can be obtained.

L1,L2…間隙
18a…現像剤収容室(現像剤収容部)
18g1,18g2…内側面
18m…第一係合部(変換機構)
18n…第二係合部(変換機構)
23,23Y,23M,23C,23K…撹拌部材(回転部材)
23h…第一被係合部(変換機構;覆い部材)
23i…第二被係合部(変換機構)
L1, L2 ... Gap 18a ... Developer storage chamber (developer storage section)
18 g 1, 18 g 2 ... inner surface 18 m ... first engagement part (conversion mechanism)
18n ... second engaging portion (conversion mechanism)
23, 23Y, 23M, 23C, 23K ... Stirring member (rotating member)
23h ... first engaged portion (conversion mechanism; covering member)
23i ... second engaged portion (conversion mechanism)

Claims (13)

現像剤を収容する現像剤収容部と、
前記現像剤収容部の内部に回転可能に支持され、回転軸が前記現像剤収容部の長手方向に沿って配置された回転部材と、
前記長手方向において、前記回転部材の端部と前記現像剤収容部の内側面との間に配置され、前記長手方向に弾性変形可能な弾性部材と、
を有し、
前記長手方向において、前記回転部材の端部と前記現像剤収容部の内側面との間には、前記回転部材が前記現像剤収容部に対して相対移動可能な間隙が形成されており、
前記回転部材が前記現像剤収容部に対して前記長手方向に相対移動する第1の動作を行ったとき、前記回転部材の前記第1の動作を、回転する回転動作へ変換する変換機構を有することを特徴とする現像剤容器。
A developer accommodating portion for accommodating the developer;
A rotating member that is rotatably supported inside the developer accommodating portion and whose rotation axis is disposed along the longitudinal direction of the developer accommodating portion;
An elastic member that is disposed between the end of the rotating member and the inner surface of the developer container in the longitudinal direction and is elastically deformable in the longitudinal direction;
Have
In the longitudinal direction, a gap is formed between the end of the rotating member and the inner surface of the developer accommodating portion so that the rotating member can move relative to the developer accommodating portion.
A conversion mechanism that converts the first operation of the rotation member into a rotation operation that rotates when the rotation member performs a first operation relative to the developer accommodating portion in the longitudinal direction; A developer container.
前記変換機構は、
前記回転部材の前記長手方向の一端部に設けられた第一被係合部と、
前記現像剤収容部の前記長手方向の一方側の内側面に設けられ、前記第一被係合部に係合可能な第一係合部と、
前記回転部材の前記長手方向の他端部に設けられた第二被係合部と、
前記現像剤収容部の前記長手方向の他方側の内側面に設けられ、前記第二被係合部に係合可能な第二係合部と、
を有することを特徴とする請求項1に記載の現像剤容器。
The conversion mechanism is
A first engaged portion provided at one end of the rotating member in the longitudinal direction;
A first engagement portion provided on an inner surface on one side in the longitudinal direction of the developer accommodating portion and engageable with the first engaged portion;
A second engaged portion provided at the other end in the longitudinal direction of the rotating member;
A second engagement portion provided on the inner surface of the other side in the longitudinal direction of the developer accommodating portion and engageable with the second engaged portion;
The developer container according to claim 1, comprising:
前記回転部材が前記第1の動作を行ったとき、
前記第一係合部と前記第一被係合部が係合することによって、前記回転部材が第一位相に回転され、
前記第二係合部と前記第二被係合部が係合することによって、前記回転部材が前記第一位相とは異なる第二位相に回転されることを特徴とする請求項2に記載の現像剤容器。
When the rotating member performs the first operation,
When the first engaging portion and the first engaged portion are engaged, the rotating member is rotated to the first phase,
The rotating member is rotated to a second phase different from the first phase by the engagement of the second engaging portion and the second engaged portion. Developer container.
前記現像剤収容部の前記一方側の側壁には、前記回転部材に回転駆動を伝達する駆動伝達部材が回転可能に備えられていることを特徴とする請求項2または請求項3に記載の現像剤容器。   4. The development according to claim 2, wherein a drive transmission member that transmits rotational driving to the rotating member is rotatably provided on the side wall on the one side of the developer accommodating portion. Agent container. 前記変換機構は、
前記回転部材に設けられ、前記長手方向に対して傾斜したガイド部と、
前記駆動伝達部材に設けられ、前記ガイド部と係合した状態で該ガイド部に沿って移動可能な係合部と、
を有することを特徴とする請求項4に記載の現像剤容器。
The conversion mechanism is
A guide portion provided on the rotating member and inclined with respect to the longitudinal direction;
An engagement portion provided on the drive transmission member and movable along the guide portion in a state of being engaged with the guide portion;
The developer container according to claim 4, comprising:
前記変換機構は、
前記駆動伝達部材に設けられ、前記長手方向に対して傾斜したガイド部と、
前記回転部材に設けられ、前記ガイド部と係合した状態で該ガイド部に沿って移動可能な係合部と、
を有することを特徴とする請求項4に記載の現像剤容器。
The conversion mechanism is
A guide portion provided on the drive transmission member and inclined with respect to the longitudinal direction;
An engaging portion that is provided on the rotating member and is movable along the guide portion while being engaged with the guide portion;
The developer container according to claim 4, comprising:
前記回転部材が前記第1の動作を行ったとき、
前記係合部が前記ガイド部に沿って移動することによって、前記回転部材が第一位相と、前記第一位相とは異なる第二位相との間で回転されることを特徴とする請求項5または6に記載の現像剤容器。
When the rotating member performs the first operation,
6. The rotating member is rotated between a first phase and a second phase different from the first phase by moving the engagement portion along the guide portion. Or the developer container according to 6;
前記弾性部材は、前記長手方向において、一端部が前記回転部材に固定され、他端部が前記駆動伝達部材に固定されたことを特徴とする請求項4〜7のいずれか1項に記載の現像剤容器。   8. The elastic member according to claim 4, wherein one end portion of the elastic member is fixed to the rotating member and the other end portion is fixed to the drive transmission member in the longitudinal direction. Developer container. 前記長手方向において、前記回転部材が前記現像剤収容部に対して相対移動したとき、前記回転部材の移動方向とは反対方向に前記回転部材に付勢力を発生させるように前記弾性部材が構成されていることを特徴とする請求項1〜8のいずれか1項に記載の現像剤容器。   In the longitudinal direction, the elastic member is configured to generate a biasing force on the rotating member in a direction opposite to the moving direction of the rotating member when the rotating member moves relative to the developer accommodating portion. The developer container according to claim 1, wherein the developer container is a developer container. 前記弾性部材の外周を覆う覆い部材を設けたことを特徴とする請求項1〜9のいずれか1項に記載の現像剤容器。   The developer container according to claim 1, further comprising a covering member that covers an outer periphery of the elastic member. 前記回転部材は、
一端が前記回転軸に固定され、他端が前記現像剤収容部の内壁面に接触可能な可撓性のシート部材を有することを特徴とする請求項1〜10のいずれか1項に記載の現像剤容器。
The rotating member is
11. The flexible sheet member according to claim 1, wherein one end is fixed to the rotating shaft, and the other end includes a flexible sheet member that can contact an inner wall surface of the developer accommodating portion. Developer container.
請求項1〜10のいずれか1項に記載の現像剤容器と、
現像剤を担持する現像剤担持体と、
を有することを特徴とする現像装置。
A developer container according to any one of claims 1 to 10,
A developer carrying member carrying the developer;
A developing device comprising:
請求項1〜10のいずれか1項に記載の現像剤容器、請求項11に記載の現像装置のうちの少なくとも1つと、
現像剤像を担持する像担持体と、
を有し、
画像形成装置の本体に対して着脱可能に設けられたことを特徴とするプロセスカートリッジ。
At least one of the developer container according to any one of claims 1 to 10, and the developing device according to claim 11,
An image carrier for carrying a developer image;
Have
A process cartridge which is detachably attached to a main body of an image forming apparatus.
JP2018066565A 2018-03-30 2018-03-30 Developer container, developing device, and process cartridge Pending JP2019179068A (en)

Priority Applications (1)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Publications (1)

Publication Number Publication Date
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Family

ID=68278484

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Country Status (1)

Country Link
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