JP2534262Y2 - Developer transport device - Google Patents
Developer transport deviceInfo
- Publication number
- JP2534262Y2 JP2534262Y2 JP1990103449U JP10344990U JP2534262Y2 JP 2534262 Y2 JP2534262 Y2 JP 2534262Y2 JP 1990103449 U JP1990103449 U JP 1990103449U JP 10344990 U JP10344990 U JP 10344990U JP 2534262 Y2 JP2534262 Y2 JP 2534262Y2
- Authority
- JP
- Japan
- Prior art keywords
- container
- hopper
- outer end
- developer
- cylindrical body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Dry Development In Electrophotography (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、現像剤搬送装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a developer transport device.
（従来の技術） 電子写真複写装置では、感光体上の静電潜像を可視像
化するために、この静電潜像に現像剤を供給してこの現
像剤により静電潜像を可視像化し、この可視像を記録媒
体に転写して複写物を得ている。感光体の周囲には、静
電潜像を可視像化する現像装置および感光体上に残留し
た現像剤を除去するクリーニング装置が設けられてい
る。現像装置には、消費された現像剤に見合う量の現像
剤を逐一補充するために、補給用の現像剤収容容器から
現像剤を補給する現像剤搬送装置が設けられている。ま
た、クリーニング装置にも、感光体上から回収した現像
剤を現像剤廃棄容器に移送するため、または、同現像剤
を再使用するのために回収した現像剤を現像装置に移送
するための現像剤搬送装置が設けられている。これらの
搬送装置は、現像容器に現像剤が適宜補充できるように
するためおよびメンテナンスが行なえるようにするため
にホッパーと容器とが互いに着脱自在に構成されてい
る。この現像剤搬送装置は、すでに本願出願人により出
願されている（実願平1-63364号）。(Prior Art) In an electrophotographic copying apparatus, in order to visualize an electrostatic latent image on a photoconductor, a developer is supplied to the electrostatic latent image, and the electrostatic latent image is formed by the developer. The image is visualized, and this visible image is transferred to a recording medium to obtain a copy. Around the photoconductor, a developing device for visualizing the electrostatic latent image and a cleaning device for removing the developer remaining on the photoconductor are provided. The developing device is provided with a developer conveying device that replenishes the developer from a replenishing developer container in order to replenish the developer in an amount corresponding to the consumed developer one by one. The cleaning device also has a developing device for transferring the developer collected from the photoreceptor to the developer waste container or transferring the collected developer to the developing device for reuse of the developer. An agent transport device is provided. In these transport devices, the hopper and the container are configured to be detachable from each other so that the developer can be appropriately replenished with the developer and maintenance can be performed. This developer transport device has already been filed by the present applicant (Japanese Utility Model Application No. 1-63364).
この現像剤搬送装置を本考案の実施例を示した図面を
かりて説明する。なお、第１図ないし第３図において、
受け口20aにシール部材23は設けられていないものと仮
定する。第１図において、ホッパー１の底部1aから連結
パイプ２の外端部2aに亘ってスクリューコンベア13が設
けられていて、このスキュリューコンベア13の一端はホ
ッパー１の底部２に軸受を介して支持されており、その
軸端は、ホッパー１の外に突出していて、その軸部に
は、被駆動歯車４が固着されている。被駆動歯車４に
は、図示しない駆動源から駆動力が伝達されるようにな
っている。スクリューコンベア13の軸端13aは連結パイ
プ２の外端部2aから突出している。連結パイプ２の外端
部2aには、摺動自在に筒体15が設けられている。符号17
は、連結パイプ２と筒体15との間の摺動負荷を小さくす
るために筒体15に圧入されたすべり軸受を示している。
符号18は、シール部材を示していて、これは、連結パイ
プ２と筒体15との間の隙間より現像剤が洩れるのを防止
している。ポッパー１の下部1aと筒体15との間には、筒
体15に連結パイプ２の外端部2aから突出する向きの移動
習性を与える圧縮ばね16が設けられている。This developer conveying device will be described with reference to the drawings showing an embodiment of the present invention. 1 to 3,
It is assumed that the receiving member 20a is not provided with the seal member 23. In FIG. 1, a screw conveyor 13 is provided from the bottom 1a of the hopper 1 to the outer end 2a of the connecting pipe 2, and one end of the screw conveyor 13 is supported on the bottom 2 of the hopper 1 via a bearing. The shaft end protrudes out of the hopper 1, and the driven gear 4 is fixed to the shaft portion. A driving force is transmitted to the driven gear 4 from a driving source (not shown). The shaft end 13a of the screw conveyor 13 projects from the outer end 2a of the connecting pipe 2. A cylindrical body 15 is slidably provided at the outer end 2a of the connecting pipe 2. Symbol 17
Indicates a slide bearing press-fitted into the cylindrical body 15 in order to reduce a sliding load between the connecting pipe 2 and the cylindrical body 15.
Reference numeral 18 denotes a seal member which prevents the developer from leaking from a gap between the connecting pipe 2 and the cylindrical body 15. A compression spring 16 is provided between the lower part 1a of the popper 1 and the cylindrical body 15 so as to give the cylindrical body 15 a movement property of protruding from the outer end 2a of the connecting pipe 2.
スクリューコンベア13の軸端13aには、筒体15の外端
部15a開口を開閉する蓋部材19が固定されている。蓋部
材19の外周部19aは、筒体15の外端部15aの開口縁に当接
するようになっている。To the shaft end 13a of the screw conveyor 13, a lid member 19 that opens and closes the opening of the outer end 15a of the cylindrical body 15 is fixed. An outer peripheral portion 19a of the lid member 19 is configured to abut on an opening edge of the outer end 15a of the cylindrical body 15.
符号20はホッパー１から現像剤を受け取る容器を示し
ていて、容器20の一端には、ホッパー１と容器20とを連
結パイプ２の軸線方向に相対的に移動させたときに、筒
体15を容器20内に導く受け筒部21が設けられている。受
け筒部21と容器20との間には、受け口20aが設けられて
いて、この受け口20aの内端は、ホッパー１と容器20と
を互いに連結し、筒体15の外端部15aと受け口20aを当接
させたときに、外端部15aの外端に当接し、筒体15をば
ね16の弾力に抗して蓋部材19から離れる向きに摺動させ
るようになっている。符号22は、現像剤を容器20内にお
いて、搬送するスクリューコンベアを示している。Reference numeral 20 denotes a container for receiving the developer from the hopper 1. One end of the container 20 is provided with a cylindrical body 15 when the hopper 1 and the container 20 are relatively moved in the axial direction of the connecting pipe 2. A receiving cylinder portion 21 for guiding into the container 20 is provided. A receiving port 20a is provided between the receiving cylinder 21 and the container 20, and an inner end of the receiving port 20a connects the hopper 1 and the container 20 to each other, and an outer end 15a of the cylindrical body 15 and the receiving port. When the abutment 20a is in contact with the outer end of the outer end 15a, the cylindrical body 15 is slid away from the lid member 19 against the elasticity of the spring 16. Reference numeral 22 denotes a screw conveyor that conveys the developer in the container 20.
ホッパー１と容器20とは、第２図ないし第３図に示す
ように、筒体15が受け筒部21内に案内されて受け筒部21
内に挿入されることによって連結される。筒体15が受け
筒部21内に挿入されると、筒体15の外端部15aが受け口2
0aの外端縁に当接し、筒体15はばね16の弾力に抗して、
連結パイプ２上を蓋部材19から離れる向きに摺動する。
筒体15が連結パイプ２上を摺動すると、第３図に示すよ
うに、容器20内に連結パイプ２の外端部2aが突入し、外
端部2aと蓋部材19との間の現像剤開放部が容器20内に位
置し、ホッパー１と容器20とが連結される。この状態で
スクリューコンベア13が回転すると、現像剤はホッパー
１から容器20に移送される。また、ホッパー１と容器20
とを互いに離脱させると、筒体15は、ばね16の弾力によ
って、蓋部材19に当接する位置まで移動し、筒体15の外
端部15a開口を閉鎖する。As shown in FIG. 2 and FIG. 3, the hopper 1 and the container 20 are
It is connected by being inserted in. When the cylindrical body 15 is inserted into the receiving cylindrical portion 21, the outer end 15a of the cylindrical body 15
Abuts the outer edge of 0a, the cylinder 15 resists the elasticity of the spring 16,
It slides on the connecting pipe 2 in a direction away from the lid member 19.
When the cylindrical body 15 slides on the connecting pipe 2, as shown in FIG. 3, the outer end 2 a of the connecting pipe 2 protrudes into the container 20 and develops between the outer end 2 a and the lid member 19. The agent release portion is located in the container 20, and the hopper 1 and the container 20 are connected. When the screw conveyor 13 rotates in this state, the developer is transferred from the hopper 1 to the container 20. In addition, hopper 1 and container 20
Are separated from each other, the cylindrical body 15 moves to a position where it comes into contact with the lid member 19 by the elastic force of the spring 16, and closes the opening of the outer end 15a of the cylindrical body 15.
（考案が解決しようとする課題） この従来の現像剤搬送装置では、ホッパー１と容器20
とを互いに連結パイプ２の軸線方向に移動させ、筒体15
の外端部15aを容器20の受け口20aの外端縁内端に当接さ
せて、連結パイプの外端部2aを容器20の内部に突出さ
せ、外端部2aと蓋部材19との間の現像剤開放部を容器20
の内部に占めさせて現像剤をホッパー１から容器20に移
行させている。(Problem to be Solved by the Invention) In this conventional developer transport device, the hopper 1 and the container 20
Are moved in the axial direction of the connecting pipe 2 to each other,
The outer end 15a of the connecting pipe abuts against the inner end of the outer edge of the receptacle 20a of the container 20, the outer end 2a of the connecting pipe projects into the container 20, and the outer end 2a and the lid member 19 Open the developer opening of container 20
And the developer is transferred from the hopper 1 to the container 20.
この現像剤搬送装置では、ホッパー１から容器20にト
ナーが移されるときに、内部にホッパー１内に収納され
ているトナーが純粋なトナーなどの流動性の良いトナー
である場合や、トナー搬送装置の搬送経路内の気圧が、
装置外の大気圧よりも高い場合に、トナーが筒体15の外
端部15aと容器20の受け口20aとの間のすき間から流出
し、受け筒部21の先端からこぼれ落ちて、トナー搬送装
置の周囲を汚染するという問題がある。In the developer transport device, when the toner is transferred from the hopper 1 to the container 20, the toner contained in the hopper 1 is a toner having good fluidity such as pure toner, or the toner transport device. Pressure in the transport path of
When the pressure is higher than the atmospheric pressure outside the apparatus, the toner flows out of a gap between the outer end portion 15a of the cylindrical body 15 and the receiving port 20a of the container 20, and spills out from the tip of the receiving cylindrical section 21, thereby causing the toner conveying device to fail. There is a problem of polluting the surroundings.
（課題を解決するための手段） 本考案は、上記従来の問題点を解決するためになされ
たものであり、現像剤を収容したホッパーと、上記ホッ
パーからの現像剤を受け取る容器と、上記ホッパーと上
記容器とを互いに連結する、上記ホッパーの底部から上
記容器に向かって突出した連結ハイプと、上記ホッパー
の底部から上記連結パイプの外端部に亘って設けられ、
その軸端が上記連結パイプの外端部から突出したスクリ
ューコンベアと、上記連結パイプの外端部に摺動自在に
嵌合された筒体と、上記筒体を上記連結パイプから突出
させる向きの移動習性を与えるばねと、上記スクリュー
コンベアの上記軸端に設けられ、上記筒体の外端部開口
を開閉する蓋部材と、上記容器と上記筒体を上記連結パ
イプの軸線方向に相対的に移動させて上記容器と上記筒
体の外端部とを連結する連結手段とを具備する現像剤搬
送装置において、上記筒体と上記連結手段との間にシー
ル部材を設けたことを特徴とする現像剤搬送装置にあ
る。(Means for Solving the Problems) The present invention has been made to solve the above-mentioned conventional problems, and includes a hopper containing a developer, a container for receiving the developer from the hopper, and the hopper. And connecting the container to each other, a connection hype projecting from the bottom of the hopper toward the container, and provided from the bottom of the hopper to an outer end of the connection pipe,
A screw conveyor whose shaft end protrudes from the outer end of the connection pipe, a cylindrical body slidably fitted to the outer end of the connection pipe, and a direction in which the cylindrical body protrudes from the connection pipe. A spring that provides movement behavior, a lid member that is provided at the shaft end of the screw conveyor and opens and closes an outer end opening of the cylindrical body, and relatively moves the container and the cylindrical body in the axial direction of the connection pipe. In a developer conveying device including a connecting means for moving the container and an outer end of the cylindrical body, a seal member is provided between the cylindrical body and the connecting means. It is in the developer transport device.
（作用） ホッパーの筒体と容器の連結手段とのすき間がシール
される。(Operation) The gap between the cylinder of the hopper and the connecting means of the container is sealed.
（実施例） 以下本考案の一実施例を第１図ないし第４図に基ずい
て説明する。(Embodiment) An embodiment of the present invention will be described below with reference to FIGS.
第１図において、従来の現像剤搬送装置と同一部材に
ついては、同じ符号を付して、その説明は省略する。現
像容器20の受け口20aの受け筒部21側の外側面には、た
とえば発泡ウレタンやスポンジゴムの弾性体で構成され
たシール部材23が設けられている。In FIG. 1, the same members as those of the conventional developer conveying device are denoted by the same reference numerals, and description thereof will be omitted. A seal member 23 made of an elastic material such as urethane foam or sponge rubber is provided on the outer surface of the receiving port 20a of the developing container 20 on the side of the receiving cylinder 21.
第２図に示すように、ホッパー１と容器20とを、連結
パイプ２の軸線方向に相対的に移動させ、筒体15の外端
部15aの外周部と受け口20aの受け筒側外側面とをシール
部材23を介在させた状態で当接させる。第３図に示すよ
うに、筒体15をばね16の弾力に抗して、蓋部材19から離
れる向きに摺動させ、容器20内に連結パイプ２の外端部
2aを突出させて、外端部2aと蓋部材19との間の現像剤開
放部を容器20内に占めさせた状態で、ホッパー１と容器
20とを連結する。筒体15の外端部15aと受け口20aの受け
筒21側の外側面との間は、シール部材23でシールされ、
容器20の内部に浮遊するトナーが、筒体15の外端部15a
と受け口20の外側面との間のすき間から外部に洩れるの
を防止する。As shown in FIG. 2, the hopper 1 and the container 20 are relatively moved in the axial direction of the connecting pipe 2, and the outer peripheral portion of the outer end 15a of the cylindrical body 15 and the outer surface of the receiving port 20a on the receiving cylinder side are moved. Are brought into contact with the seal member 23 interposed therebetween. As shown in FIG. 3, the cylindrical body 15 is slid in a direction away from the lid member 19 against the elasticity of the spring 16 so that the outer end of the connecting pipe 2 is inserted into the container 20.
2a is projected so that the developer release portion between the outer end portion 2a and the lid member 19 is occupied in the container 20, and the hopper 1 and the container
Connect with 20. Between the outer end portion 15a of the cylindrical body 15 and the outer surface of the receiving port 20a on the receiving cylinder 21 side is sealed by a seal member 23,
The toner floating inside the container 20 is the outer end 15a of the cylindrical body 15.
To prevent leakage from the gap between the outer surface of the receptacle 20 and the outside.
上記実施例は、シール部材を容器20の受け口20aに設
けたものであるが、第４図に示すように筒体15の外端部
15aにシール部材123を設けてもよい。また、第５図に示
すように筒体15のホッパー１側の内端部に鍔部15bを形
成し、鍔部15bを容器20の受け筒21の入口21aに当接する
ことにより、ホッパー１と容器20とを連結する現像剤搬
送装置においては、鍔部15bと入口21aとの間にシール部
材223を設けて、ホッパー１と容器20との当接部分をシ
ールしてもよい。In the above embodiment, the seal member is provided at the receptacle 20a of the container 20, but as shown in FIG.
A seal member 123 may be provided on 15a. Further, as shown in FIG. 5, a flange 15b is formed at the inner end of the cylindrical body 15 on the hopper 1 side, and the flange 15b is brought into contact with the inlet 21a of the receiving cylinder 21 of the container 20, thereby forming a connection with the hopper 1. In the developer conveying device that connects the container 20, a seal member 223 may be provided between the flange 15 b and the inlet 21 a to seal a contact portion between the hopper 1 and the container 20.
（考案の効果） 本考案によれば、容器と筒体を連結パイプの軸線方向
に相対的に移動させて上記容器と上記筒体の外端部とを
連結する連結手段を作動させて、ホッパーと容器とを連
結させて、そのホッパーの一部を容器に接触させること
により、現像剤排出口を開閉する自動現像剤搬送装置に
おいて、上記筒体と上記連結手段との間に弾性体で構成
されたシール部材を設けたので、ホッパーと容器の当接
部分の密閉性が向上し、ホッパー１内に収納されている
トナーが純粋なトナーなどの流動性の良いトナーである
場合や、トナー搬送装置の搬送経路内の気圧が、装置外
の大気圧よりも高い場合に、該トナーがホッパーと容器
の連結部分からもれることが防止され、受け筒部の先端
からこぼれ落ちて、トナー搬送装置の周囲を汚染するこ
とがなくなる。(Effects of the Invention) According to the present invention, the hopper is operated by relatively moving the container and the cylinder in the axial direction of the connection pipe to operate the connection means for connecting the container and the outer end of the cylinder. And a container, and a part of the hopper is brought into contact with the container to open and close the developer discharge port. In an automatic developer transport device, an elastic body is provided between the cylindrical body and the connecting means. Since the sealing member provided is provided, the hermeticity of the contact portion between the hopper and the container is improved, and the toner contained in the hopper 1 is a toner having a good fluidity such as a pure toner, or a toner conveyance device. When the atmospheric pressure in the transport path of the apparatus is higher than the atmospheric pressure outside the apparatus, the toner is prevented from leaking from the connecting portion between the hopper and the container, and spills from the tip of the receiving cylinder, and the toner transport apparatus Can pollute the surroundings Disappears.
第１図は、本考案の一実施例を示す現像剤搬送装置の断
面図、第２図は、同上の筒体の外端部を受け口に当接さ
せた状態の部分断面図、第３図は、同上の連結パイプを
容器内に挿入して外端部開口を開放した状態の部分断面
図、第４図は、本考案の他の実施例を示すホッパーの筒
体の断面図、第５図は、本考案のさらに他の実施例を示
す現像剤搬送装置の部分断面図である。 １……ホッパー、２……連結パイプ、13……スクリュー
コンベア、15……筒体、16……ばね、19……蓋部材、20
……容器、20a……受け口、21……受け筒部、23,123,22
3……シール部材。FIG. 1 is a cross-sectional view of a developer conveying device showing an embodiment of the present invention, FIG. 2 is a partial cross-sectional view of the same cylindrical member in an outer end portion in contact with a receptacle, FIG. FIG. 4 is a partial cross-sectional view showing a state in which the connecting pipe is inserted into a container to open an outer end opening, FIG. 4 is a cross-sectional view of a hopper cylinder showing another embodiment of the present invention, and FIG. FIG. 4 is a partial cross-sectional view of a developer conveying device according to another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1 ... Hopper, 2 ... Connecting pipe, 13 ... Screw conveyor, 15 ... Cylindrical body, 16 ... Spring, 19 ... Lid member, 20
…… Container, 20a …… Receptacle, 21 …… Receptacle part, 23,123,22
3. Seal member.
Claims (1)
パーの底部から上記容器に向かって突出した連結ハイプ
と、 上記ホッパーの底部から上記連結パイプの外端部に亘っ
て設けられ、その軸端が上記連結パイプの外端部から突
出したスクリューコンベアと、 上記連結パイプの外端部に摺動自在に嵌合された筒体
と、 上記筒体を上記連結パイプから突出させる向きの移動習
性を与えるばねと、 上記スクリューコンベアの上記軸端に設けられ、上記筒
体の外端部開口を開閉する蓋部材と、 上記容器と上記筒体を上記連結パイプの軸線方向に相対
的に移動させて上記容器と上記筒体の外端部とを連結す
る連結手段と を具備する現像剤搬送装置において、 上記筒体と上記連結手段との間にシール部材を設けたこ
とを特徴とする現像剤搬送装置。1. A hopper containing a developer, a container for receiving the developer from the hopper, and a connecting hype projecting from the bottom of the hopper toward the container, connecting the hopper and the container to each other. A screw conveyor provided from the bottom of the hopper to the outer end of the connecting pipe, the shaft end of which protrudes from the outer end of the connecting pipe; and slidably fitted to the outer end of the connecting pipe. A combined cylinder, a spring that provides a movement behavior in a direction in which the cylinder is projected from the connection pipe, and a lid member that is provided at the shaft end of the screw conveyor and opens and closes an outer end opening of the cylinder. And a connecting means for relatively moving the container and the cylindrical body in the axial direction of the connecting pipe to connect the container and an outer end of the cylindrical body. , The developer conveying apparatus characterized in that a seal member between the cylinder and the connecting means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990103449U JP2534262Y2 (en) | 1990-10-01 | 1990-10-01 | Developer transport device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990103449U JP2534262Y2 (en) | 1990-10-01 | 1990-10-01 | Developer transport device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0459859U JPH0459859U (en) | 1992-05-22 |
| JP2534262Y2 true JP2534262Y2 (en) | 1997-04-30 |
Family
ID=31848332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990103449U Expired - Lifetime JP2534262Y2 (en) | 1990-10-01 | 1990-10-01 | Developer transport device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2534262Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7005924B2 (en) * | 2017-03-31 | 2022-01-24 | ブラザー工業株式会社 | Process unit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62294271A (en) * | 1986-06-13 | 1987-12-21 | Canon Inc | Developing device |
| JPS63175875A (en) * | 1987-01-14 | 1988-07-20 | Konica Corp | Electrostatic recorder |
-
1990
- 1990-10-01 JP JP1990103449U patent/JP2534262Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0459859U (en) | 1992-05-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |