JPH09265229A - Toner cartridge - Google Patents
Toner cartridgeInfo
- Publication number
- JPH09265229A JPH09265229A JP8072038A JP7203896A JPH09265229A JP H09265229 A JPH09265229 A JP H09265229A JP 8072038 A JP8072038 A JP 8072038A JP 7203896 A JP7203896 A JP 7203896A JP H09265229 A JPH09265229 A JP H09265229A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- drive shaft
- stirring member
- rotary drive
- cartridge
- 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.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電子写真複写機等
の現像装置に用いるトナーカートリッジ、特に内部にト
ナー搬送、撹拌部材を有したトナーカートリッジに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toner cartridge used in a developing device such as an electrophotographic copying machine, and more particularly to a toner cartridge having a toner carrying and stirring member inside.
【０００２】[0002]
【従来の技術】現像器へのトナー補給方法として、開口
部を有する円筒状のトナーカートリッジを使用してい
る。一般的には現像器のカートリッジを収納するホルダ
ーに、開口を上にして挿入装着し、１８０度回転させて
開口部を現像装置内部に向けてトナーを装置内に落下補
給させている。しかし、この装置は現像ロール上にカー
トリッジのサイズ分のスペースを必要とし、装置を大型
化するものであった。そこで、図５に示すように、現像
部１０の像担持体５の反対方向にトナーカートリッジ２
０を配置させ、トナー貯蔵部を兼ねた構成とすることに
より、現像装置の小型化を図っている。この装置におい
ては、カートリッジ２０からトナーを排出させるために
はアジテータ（搬送、撹拌手段）２５が必要となってく
る。トナーカートリッジ内の搬送用アジテータとして、
特開昭６２−８６３８２号公報に開示されているよう
に、カートリッジの軸方向に設けた撹拌部材を回転させ
てトナーを搬送している。この撹拌部材はカートリッジ
の軸方向全域にわたり、一度にトナーをかきあげるため
部材に急激に負荷がかかり、変形してしまうという問題
があった。この問題に対し、実開昭６２−１２３６６１
号公報、実開平１−１７２０６６号公報、実開平２−１
３８７５８号公報、実開平２−２１６６１号公報等で負
荷軽減手段が開示されている。2. Description of the Related Art As a method of supplying toner to a developing device, a cylindrical toner cartridge having an opening is used. In general, a holder for accommodating a cartridge of a developing device is inserted and mounted with the opening facing upward, and is rotated 180 degrees to direct the opening toward the inside of the developing device to replenish toner into the device. However, this apparatus requires a space corresponding to the size of the cartridge on the developing roll, thus increasing the size of the apparatus. Therefore, as shown in FIG. 5, the toner cartridge 2 is moved in the direction opposite to the image carrier 5 of the developing unit 10.
The developing device is downsized by arranging 0 to have a structure that also serves as a toner storage unit. In this apparatus, an agitator (conveying and stirring means) 25 is required to discharge the toner from the cartridge 20. As a transport agitator in the toner cartridge,
As disclosed in JP-A-62-86382, toner is conveyed by rotating an agitating member provided in the axial direction of the cartridge. This agitating member scratches the toner all over the axial direction of the cartridge at one time, so that the member is abruptly loaded and deformed. In response to this problem, actual development Sho 62-123661
Publication No. 1-172066, Japanese Utility Model Publication No. 2-1
The load reducing means is disclosed in Japanese Patent No. 38758, Japanese Utility Model Laid-Open No. 2-21661, and the like.
【０００３】[0003]
【発明が解決しようとする課題】しかし、トナーを充填
したカートリッジをたて置きしていた場合、トナーが偏
ってしまい、その状態でのトナーカートリッジをそのま
ま現像装置にセットすると、トナーが偏った側の撹拌、
搬送部材の負荷が大きくなり、駆動時にアジテーターが
ねじれを生じ、破損したり搬送能力が極端に低下する等
の欠点があった。本発明は、上記の不具合を改良しよう
とするもので、たて置き等でトナーカートリッジ内のト
ナーの偏りがあって撹拌部材への負荷が局部的に大きく
なった場合でも、ねじれたり破損したりしないで均一に
確実なトナーの撹拌、搬送ができるトナーカートリッジ
を提供しようとするものである。However, when the toner-filled cartridge is placed upright, the toner becomes uneven, and when the toner cartridge in that state is set in the developing device as it is, the toner becomes uneven. Stirring,
There is a drawback that the load on the conveying member becomes large, the agitator is twisted during driving, is damaged, and the conveying ability is extremely lowered. The present invention is intended to improve the above-mentioned inconvenience, and even when the toner in the toner cartridge is biased due to vertical placement or the like and the load on the stirring member is locally increased, the toner may be twisted or damaged. An object of the present invention is to provide a toner cartridge that can uniformly and surely agitate and convey the toner.
【０００４】[0004]
【課題を解決するための手段】本発明の補給用の現像装
置のトナーが不足したとき現像装置に装着され、収容し
ているトナーを現像手段方向に補給するトナーカートリ
ッジは、トナーを収容すると共に、トナーを搬送する開
口を備えたトナー収容部と、トナー収容部内に配設され
る回転駆動軸と、回転駆動軸に摺動自在に軸支され、そ
れぞれ回転駆動軸との連結手段を介して回転駆動軸に連
結、連結解除可能に構成されて、収容するトナーをそれ
ぞれ独立して回転し、撹拌、搬送する複数のトナー撹拌
部材とを備える構成を具備する。そして、トナー撹拌部
材の回転駆動軸との連結手段は、収容するトナーがトナ
ー撹拌部材にかける負荷により連結、あるいは連結が解
除される構成とする、また、駆動源側に配設されるトナ
ー撹拌部材は他のトナー撹拌部材に対して撹拌、搬送作
用部分の長さを長くする構成を具備する。SUMMARY OF THE INVENTION A toner cartridge, which is mounted on a developing device when the toner of the replenishing developing device according to the present invention is insufficient, replenishes the contained toner toward a developing means while accommodating the toner. A toner accommodating portion having an opening for conveying toner, a rotary drive shaft arranged in the toner accommodating portion, and a rotary drive shaft slidably supported by respective rotary drive shafts. And a plurality of toner stirring members that are configured to be coupled to and decoupled from the rotation drive shaft and that independently rotate, stir, and convey the stored toner. The means for connecting the toner agitating member to the rotary drive shaft is configured to be connected or disconnected by the load of the toner contained in the toner agitating member, or the toner agitating member arranged on the drive source side. The member has a structure in which the length of the stirring and conveying action portion is made longer than that of the other toner stirring member.
【０００５】また、トナーカートリッジは現像装置本体
の駆動源に連絡する回転駆動軸と、回転駆動軸に植設さ
れる係合ピンと、回転駆動軸に摺動自在に軸支され、収
容するトナーを回転して撹拌、搬送する複数のトナー撹
拌部材と、トナー撹拌部材を回転駆動軸の中央方向に付
勢するスプリングとを備え、トナー撹拌部材はスプリン
グに押圧されたとき回転駆動軸上を移動し、回転駆動軸
に植設される係合ピンに係合する溝を配設し、溝と回転
駆動軸の係合ピンが係合したとき、撹拌部材は回転駆動
軸に連結して回転し収容するトナーを撹拌、搬送すると
ともに、収容するトナーのトナー撹拌部材にかける圧力
がスプリングの付勢力より大きいとき、トナー撹拌部材
は回転駆動軸との連結が解除され、回転しない構成を具
備する。Further, the toner cartridge has a rotary drive shaft communicating with a drive source of the developing device main body, an engagement pin embedded in the rotary drive shaft, and a rotary drive shaft slidably supported to store toner therein. The toner stirring member includes a plurality of toner stirring members that rotate, stir, and convey, and a spring that biases the toner stirring member toward the center of the rotation driving shaft. The toner stirring member moves on the rotation driving shaft when pressed by the spring. A groove is formed to engage with the engaging pin that is planted on the rotary drive shaft, and when the groove and the engaging pin of the rotary drive shaft are engaged, the stirring member is connected to the rotary drive shaft to rotate and accommodate. When the pressure applied to the toner stirring member of the stored toner is larger than the biasing force of the spring, the toner stirring member is disconnected from the rotation drive shaft and does not rotate.
【０００６】[0006]
【発明の実施の形態】図面を参照して本発明の実施の形
態を説明する。図１は現像装置の断面説明図、図２は図
１線Ａ−Ａ断面図である。現像装置５０は現像ハウジン
グ５３内に現像ロール５５およびトナーカートリッジ６
０を内蔵する。トナーカートリッジ６０は現像ロール５
５に対応して長手方向に開口する開口部６５を有する筒
状筐体６１と、筒状筐体６１の両端面に嵌合するフラン
ジ６３を有し、密閉筐体内にトナーＴを収容している。
筐体内には回転駆動軸７０を備えている。回転駆動軸７
０は現像器本体からの駆動を受けるカップリング７１を
介して回転する。回転駆動軸７０の両端部にはピン７５
ａ、７５ｂを植設している。回転駆動軸７０には第１の
撹拌部材８０ａと第２の撹拌部材８０ｂが摺動自在に取
り付けられている。第１の撹拌部材８０ａはカップリン
グ７１の配設端部側に取り付けられ、第２の撹拌部材８
０ｂはカップリング７１から離れた他端端に取り付けら
れる。撹拌部材８０（ａ，ｂ）は回転駆動軸７０に取り
付けられる回転盤８１と、回転盤８１に連結する撹拌板
８３、および撹拌板８３の他端を支持して回転駆動軸７
０に連結する支持部８５よりなる。Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a sectional explanatory view of the developing device, and FIG. 2 is a sectional view taken along the line AA in FIG. The developing device 50 includes a developing roller 55 and a toner cartridge 6 in a developing housing 53.
0 is built in. The toner cartridge 60 is the developing roll 5
5 has a cylindrical casing 61 having an opening portion 65 opening in the longitudinal direction corresponding to No. 5, and flanges 63 fitted to both end faces of the cylindrical casing 61, and stores the toner T in a sealed casing. There is.
A rotation drive shaft 70 is provided in the housing. Rotary drive shaft 7
0 rotates via the coupling 71 which receives the drive from the developing device main body. Pins 75 are provided on both ends of the rotary drive shaft 70.
A and 75b are planted. A first stirring member 80a and a second stirring member 80b are slidably attached to the rotary drive shaft 70. The first stirring member 80a is attached to the end portion side where the coupling 71 is provided, and the second stirring member 8a
0b is attached to the other end away from the coupling 71. The stirring member 80 (a, b) supports the rotary disk 81 attached to the rotary drive shaft 70, a stirring plate 83 connected to the rotary disk 81, and the other end of the stirring plate 83 to support the rotary drive shaft 7
It consists of a support part 85 connected to 0.
【０００７】回転盤８１は板厚を厚くした回転駆動軸７
０への取付部８１０を有し、この取付部８１０の裏面に
は回転駆動軸７０に植設するピン７５が嵌合可能な溝８
２０を凹設する。回転盤８１は溝８２０をピン７５に対
向させて回転駆動軸７０の端部に嵌挿される。さらに、
第１の撹拌部材８０ａの回転盤８１とカップリング７１
との間、および第２の撹拌部材８０ｂの回転盤８１とス
トッパー７３との間に、スプリング９０を配設する。ス
プリング９０は各回転盤８１を回転軸７０の中央方向、
矢印Ｂ方向に付勢している。The rotary disk 81 is a rotary drive shaft 7 having a thick plate.
0 has a mounting portion 810, and a groove 8 into which a pin 75 planted on the rotary drive shaft 70 can be fitted is provided on the back surface of the mounting portion 810.
20 is recessed. The turntable 81 is fitted into the end of the rotary drive shaft 70 with the groove 820 facing the pin 75. further,
Rotating disk 81 and coupling 71 of the first stirring member 80a
A spring 90 is provided between the rotary plate 81 and the stopper 73 of the second stirring member 80b. The spring 90 connects the rotary plates 81 to the center of the rotary shaft 70,
It is biased in the direction of arrow B.
【０００８】このように構成するトナーカートリッジ６
０のカップリング７１を装置駆動部に連結し回転駆動軸
７０を回転させる。第１、第２の撹拌部材８０ａ，８０
ｂは回転盤８１がスプリング９０により押圧されて矢印
Ｂ方向に移動し、回転盤８１の溝８２０が回転するピン
７５に嵌合すると、各撹拌部材８０ａ，８０ｂは回転す
る。そして、収容するトナーＴを撹拌して開口部６５か
ら近辺のトナー溜まり部５７、現像ロール５５方向に送
り出す。[0008] The toner cartridge 6 having the above structure
The coupling 71 of No. 0 is connected to the device drive unit to rotate the rotary drive shaft 70. First and second stirring members 80a, 80
In b, when the rotary plate 81 is pressed by the spring 90 to move in the direction of arrow B and the groove 820 of the rotary plate 81 is fitted into the rotating pin 75, the stirring members 80a and 80b rotate. Then, the stored toner T is agitated and sent out from the opening 65 toward the toner reservoir 57 and the developing roller 55 in the vicinity.
【０００９】次に、トナーＴの搬送作用を説明する。カ
ートリッジ６０内にトナーＴを充填すると、トナーＴに
より撹拌部材８０の回転盤８１にはある程度の圧力がか
かる。 （１） トナーＴがカートリッジ６０内にほぼ均等に充
填されているとき カートリッジ６０内に均等に充填されているトナーＴに
おいては、スプリング９０の矢印Ｂ方向への押圧力に対
して撹拌部材８０にかかるトナーＴの圧力はそれほど強
くない。この状態のとき、回転駆動軸７０が回転すると
スプリング９０により回転盤８１が押され、ピン７５
ａ，ｂと溝８２０がかみあう。そして、撹拌部材８０
ａ，８０ｂが回転して、トナーＴが撹拌、搬送される。Next, the operation of conveying the toner T will be described. When the toner T is filled in the cartridge 60, a certain amount of pressure is applied to the rotary disk 81 of the stirring member 80 by the toner T. (1) When the toner T is substantially evenly filled in the cartridge 60 In the toner T evenly filled in the cartridge 60, the stirring member 80 is pressed against the pressing force of the spring 90 in the arrow B direction. The pressure of the toner T is not so strong. In this state, when the rotary drive shaft 70 rotates, the rotary plate 81 is pushed by the spring 90 and the pin 75
The grooves a and b are engaged with each other. Then, the stirring member 80
The toner T is agitated and conveyed by the rotation of a and 80b.
【００１０】（２） トナーＴがカートリッジ６０内に
偏って充填されているとき トナーが偏って充填され、偏っている部分のトナーＴの
圧力がスプリング９０の圧力より強いとき、例えば図２
に示すようにカップリング７１方向側にトナーＴが偏っ
ている場合、回転駆動軸７０が回転しても第１の撹拌部
材８０ａの回転盤８１はトナーに押されてスライド移動
することができない。スプリング９０の力に抗して第１
の撹拌部材８０ａが移動できないので、ピン７５ａが回
転盤８１の溝８２０とかみあわない状態でいる。従って
第１の搬送部材８０ａは回転せず、第１の搬送部材８０
ａへ直接負荷がかかることが無く、第１の搬送部材８０
ａがネジレや破損を生じることが無い。それに対して、
偏ってトナーＴ量が少なくなっている反対側の第２の搬
送部材８０ｂに対しては、トナーＴの圧力が小さく、回
転駆動軸７０の回転により回転盤８１はスプリング９０
に押圧されて移動する。そして、回転盤８１の溝８２０
が回転軸７０のピン７５ｂにかみあい第２の撹拌部材８
０ｂが回転する。そして、第２の撹拌部材８０ｂの領域
にあるトナーＴは少しづつながら搬送される。このと
き、撹拌部材８０ｂにかかるトナーＴの負荷はトナー量
が少なく小さいので、ネジレや破損も発生しない。(2) When the toner T is unevenly filled in the cartridge 60 When the toner is unevenly charged and the pressure of the toner T in the uneven portion is stronger than the pressure of the spring 90, for example, FIG.
When the toner T is biased toward the coupling 71 side as shown in FIG. 5, even if the rotary drive shaft 70 rotates, the rotary disk 81 of the first stirring member 80a is pushed by the toner and cannot slide. First against the force of the spring 90
Since the stirring member 80a of No. 2 cannot move, the pin 75a is not in mesh with the groove 820 of the rotary disk 81. Therefore, the first transport member 80a does not rotate, and the first transport member 80a
The load is not directly applied to a, and the first transport member 80
There is no twisting or damage to a. On the other hand,
The pressure of the toner T is small with respect to the second conveying member 80b on the opposite side where the amount of toner T is eccentrically reduced, and the rotary disk 81 rotates the spring 90 by the rotation of the rotary drive shaft 70.
It is pressed by and moves. Then, the groove 820 of the turntable 81
Engages with the pin 75b of the rotating shaft 70 and the second stirring member 8
0b rotates. Then, the toner T in the area of the second stirring member 80b is conveyed little by little. At this time, the load of the toner T on the stirring member 80b is small and the amount of toner is small, so that the twisting and the damage do not occur.
【００１１】さらに第２の撹拌部材８０ｂのトナーの搬
送に引きずられるように第１の撹拌部材８０ａ側に堆積
しているトナーは少しづつくずされてゆく。ついには第
１の撹拌部材８０ａへの負荷がある程度以下に下がり、
スプリング９０の押圧力で回転盤８１が移動しピン７５
ａと溝８２０がかみあって第１の撹拌部材８０ａも回転
されるようになる。Further, the toner accumulated on the side of the first stirring member 80a is gradually broken so that the toner is dragged by the toner carried by the second stirring member 80b. Finally, the load on the first stirring member 80a drops below a certain level,
The rotating plate 81 is moved by the pressing force of the spring 90 and the pin 75
The a and the groove 820 are engaged with each other so that the first stirring member 80a is also rotated.
【００１２】このように、上記構成のカートリッジ６０
を備えた現像装置５０は撹拌部材８０ａ，８０ｂによ
り、カートリッジ側面の開口部６５から、現像ロール及
びへトナー溜まり部５７方向に撹拌部材に強力な負荷を
かけることなくトナーが搬送されるようにしているの
で、確実でスムーズなトナーの搬送が現像器の高さをお
さえた構造で実行できる。Thus, the cartridge 60 having the above structure
In the developing device 50 including the agitating member 80a, 80b, the toner is conveyed from the opening portion 65 on the side surface of the cartridge toward the developing roll and the toner accumulating portion 57 without applying a strong load to the agitating member. As a result, reliable and smooth toner transfer can be performed with a structure in which the height of the developing device is suppressed.
【００１３】次に、カートリッジの撹拌部材の他の実施
例を示す。 実施例 １（図３参照） この実施例に示すカートリッジの撹拌部材は回転駆動軸
に棒状の突起を複数個設けている。カートリッジ６０の
フランジ６３との間にスプリング９０を介して回転盤８
１を支持する回転軸７００には複数本の棒状の突起７５
０が植設されている。この突起７５０は回転駆動軸７０
０の回転によりトナーＴを内側から崩す作用を実行す
る。カートリッジ６０に収納されたトナーＴが第１の撹
拌部材８０ａ方向に偏りが強い場合、回転駆動軸７００
の回転のみではブロッキングしているトナーをくずすこ
とができないことがある。この場合に、回転駆動軸７０
０に設けられた棒状の突起７５０が堆積して回転盤８１
の移動をブロックしているトナーＴの内部を撹拌し、内
側からトナーＴをくずしていく。そして、徐々に回転駆
動軸７００にかかるトナーの負荷を下げ、スプリング９
０の押圧力により第１の撹拌部材８０ａが矢印Ｂ方向に
移動し、回転盤８１の溝８２０が回転駆動軸７００のピ
ン７５とかみあって第１の撹拌部材８０ａを回転させ
る。回転駆動軸７００の回転は棒状突起７５０、第１の
撹拌部材８０ａ、第２の撹拌部材８０ｂを回転させ、ト
ナーＴの撹拌、搬送を行う。Next, another embodiment of the stirring member of the cartridge will be shown. Embodiment 1 (see FIG. 3) The stirring member of the cartridge shown in this embodiment is provided with a plurality of rod-shaped projections on the rotary drive shaft. The rotary disk 8 is provided with a spring 90 between it and the flange 63 of the cartridge 60.
A plurality of rod-shaped projections 75 are provided on the rotary shaft 700 that supports 1
0 has been planted. The protrusion 750 is formed on the rotary drive shaft 70.
The rotation of 0 causes the toner T to collapse from the inside. When the toner T stored in the cartridge 60 is strongly biased toward the first stirring member 80a, the rotary drive shaft 700
It may not be possible to break the blocking toner by rotating the toner only. In this case, the rotary drive shaft 70
The rod-shaped projection 750 provided on the
The inside of the toner T that blocks the movement of the toner is agitated, and the toner T is scraped from the inside. Then, the load of the toner on the rotary drive shaft 700 is gradually reduced, and the spring 9
The first stirring member 80a moves in the direction of the arrow B by the pressing force of 0, and the groove 820 of the rotary disk 81 engages with the pin 75 of the rotary drive shaft 700 to rotate the first stirring member 80a. The rotation of the rotary drive shaft 700 rotates the rod-shaped protrusion 750, the first stirring member 80a, and the second stirring member 80b to stir and convey the toner T.
【００１４】実施例 ２（図４参照） この実施例に示すカートリッジの撹拌部材は回転駆動軸
に取り付ける撹拌部材の形状を変えている。回転駆動軸
７０に支持される第１の撹拌部材８００ａ、第２の撹拌
部材８００ｂの軸方向の長さＬを、第１の撹拌部材８０
０ａの長さＬ1を第２の撹拌部材Ｌ2より長く構成して、
Ｌ1＞Ｌ2の関係としている。この構成により、カップリ
ング７１に近い側の第１の撹拌部材８００ａは、カップ
リング７１に近接して植設されるピン７５ａにより駆動
されるため、直接的に駆動が伝わる。それに対し、カッ
プリング７１から遠距離に配設される第２の撹拌部材８
００ｂを駆動する回転駆動軸７０は、カップリング７１
より遠いところに配設するピン７５にかみあって回転さ
れるので、第２の撹拌部材８００ｂの負荷が回転駆動軸
７０にねじれを生じさせる。従って、第２の撹拌部材８
００ｂの長さＬ2を、撹拌部材８００ａの長さＬ1より短
く設定することにより、回転駆動軸７０にかかるねじれ
負荷を比較的小さくすることができる。Embodiment 2 (see FIG. 4) The stirring member of the cartridge shown in this embodiment is different in the shape of the stirring member attached to the rotary drive shaft. The axial length L of the first stirring member 800a and the second stirring member 800b supported by the rotary drive shaft 70 is defined as the first stirring member 80.
The length L 1 of 0a is made longer than the second stirring member L 2 ,
The relationship is L 1 > L 2 . With this configuration, the first stirring member 800a on the side closer to the coupling 71 is driven by the pin 75a that is planted in the vicinity of the coupling 71, so the drive is directly transmitted. On the other hand, the second stirring member 8 arranged at a long distance from the coupling 71.
The rotary drive shaft 70 that drives 00b has a coupling 71
Since the pin 75 disposed at a farther place is engaged and rotated, the load of the second stirring member 800b causes the rotation drive shaft 70 to be twisted. Therefore, the second stirring member 8
By setting the length L 2 of 00b to be shorter than the length L 1 of the stirring member 800a, the torsional load applied to the rotary drive shaft 70 can be made relatively small.
【図１】 本発明に係る現像装置の断面説明図FIG. 1 is a sectional explanatory view of a developing device according to the present invention.
【図２】 図１線Ａ−Ａのトナーカートリッジ部分の断
面図FIG. 2 is a sectional view of the toner cartridge portion of FIG. 1A-A.
【図３】 トナーカートリッジの他の実施例を示す断面
図FIG. 3 is a sectional view showing another embodiment of the toner cartridge.
【図４】 トナーカートリッジの他の実施例を示す断面
図FIG. 4 is a sectional view showing another embodiment of the toner cartridge.
【図５】 現像装置の従来例を示す断面説明図FIG. 5 is a sectional explanatory view showing a conventional example of a developing device.
５０ 現像装置、 ５３ 筐体、 ６０ トナーカート
リッジ、 ７０ 回転駆動軸、 ７１ カップリング、
７５ａ，７５ｂ ピン、 ８０ａ，８０ｂ撹拌部材、
８１ 回転盤、 ８３ 撹拌板、 ９０ スプリン
グ、 ８２０回転盤の溝。50 developing device, 53 housing, 60 toner cartridge, 70 rotary drive shaft, 71 coupling,
75a, 75b pin, 80a, 80b stirring member,
81 rotary disk, 83 stirring plate, 90 spring, 820 rotary disk groove.
Claims (4)
装置に装着され、収容しているトナーを現像手段方向に
補給するトナーカートリッジであって、トナーを収容す
ると共に、トナーを搬送する開口を備えたトナー収容部
と、トナー収容部内に配設される回転駆動軸と、回転駆
動軸に摺動自在に軸支され、収容するトナーを回転して
撹拌、搬送する複数のトナー撹拌部材とを備え、 各トナー撹拌部材はそれぞれ回転駆動軸との連結手段を
介して回転駆動軸に連結、連結解除可能に構成され、独
立して回転できるよう形成されてなるトナーカートリッ
ジ。1. A toner cartridge, which is mounted on a developing device and replenishes the contained toner toward a developing means when the developing device runs out of toner, and has an opening for accommodating the toner and conveying the toner. A toner storage portion provided, a rotary drive shaft disposed in the toner storage portion, and a plurality of toner stirring members that are slidably supported by the rotary drive shaft to rotate, stir, and convey the stored toner. A toner cartridge, wherein each toner stirring member is configured to be connectable to and disconnectable from the rotary drive shaft via a connecting means with the rotary drive shaft, and is configured to be independently rotatable.
段は、収容するトナーがトナー撹拌部材にかける負荷に
より連結、あるいは連結が解除されるよう構成される請
求項１記載のトナーカートリッジ。2. The toner cartridge according to claim 1, wherein the means for connecting the toner stirring member to the rotation drive shaft is configured to be connected or disconnected by a load applied to the toner stirring member on the toner stirring member.
他のトナー撹拌部材に対して撹拌、搬送作用部分の長さ
を長くしてなる請求項１記載のトナーカートリッジ。3. The toner cartridge according to claim 1, wherein the toner stirring member disposed on the drive source side has a longer stirring / conveying action portion than the other toner stirring members.
動軸と、回転駆動軸に植設される係合ピンと、回転駆動
軸に摺動自在に軸支され、収容するトナーを回転して撹
拌、搬送する複数のトナー撹拌部材と、トナー撹拌部材
を回転駆動軸の中央方向に付勢するスプリングとを備
え、トナー撹拌部材はスプリングに押圧されたとき回転
駆動軸上を移動し、回転駆動軸に植設される係合ピンに
係合する溝を有し、トナー撹拌部材は溝と回転駆動軸の
係合ピンが係合して回転駆動軸に連結されると共に、収
容するトナーのトナー撹拌部材にかける圧力がスプリン
グの付勢力より大きいとき、トナー撹拌部材は回転駆動
軸との連結が解除されるよう構成されるトナーカートリ
ッジ。4. A rotary drive shaft communicating with a drive source of a developing device main body, an engagement pin embedded in the rotary drive shaft, and a rotary drive shaft slidably supported to rotate the stored toner. A plurality of toner stirring members that stir and convey and a spring that biases the toner stirring member toward the center of the rotation drive shaft are provided. When the toner stirring member is pressed by the spring, the toner stirring member moves on the rotation drive shaft and is driven to rotate. The toner stirring member has a groove that engages with an engagement pin that is planted on the shaft. The toner stirring member is connected to the rotation drive shaft by engaging the engagement pin of the rotation drive shaft with the toner stirring member. A toner cartridge configured such that when the pressure applied to the stirring member is larger than the biasing force of the spring, the toner stirring member is disconnected from the rotation drive shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8072038A JPH09265229A (en) | 1996-03-27 | 1996-03-27 | Toner cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8072038A JPH09265229A (en) | 1996-03-27 | 1996-03-27 | Toner cartridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09265229A true JPH09265229A (en) | 1997-10-07 |
Family
ID=13477839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8072038A Pending JPH09265229A (en) | 1996-03-27 | 1996-03-27 | Toner cartridge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09265229A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8027619B2 (en) | 2007-09-06 | 2011-09-27 | Kyocera Mita Corporation | Toner container having a toner agitating function unit with a tubular member having axially spaced ring pieces and openings between the ring pieces |
| US8290407B2 (en) | 2009-01-30 | 2012-10-16 | Kyocera Mita Corporation | Toner supply apparatus with a drive member for driving an agitator and with a film covering the periphery of the drive member |
-
1996
- 1996-03-27 JP JP8072038A patent/JPH09265229A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8027619B2 (en) | 2007-09-06 | 2011-09-27 | Kyocera Mita Corporation | Toner container having a toner agitating function unit with a tubular member having axially spaced ring pieces and openings between the ring pieces |
| US8290407B2 (en) | 2009-01-30 | 2012-10-16 | Kyocera Mita Corporation | Toner supply apparatus with a drive member for driving an agitator and with a film covering the periphery of the drive member |
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