JPS6151411A - Powder carrying pipe - Google Patents
Powder carrying pipeInfo
- Publication number
- JPS6151411A JPS6151411A JP17223484A JP17223484A JPS6151411A JP S6151411 A JPS6151411 A JP S6151411A JP 17223484 A JP17223484 A JP 17223484A JP 17223484 A JP17223484 A JP 17223484A JP S6151411 A JPS6151411 A JP S6151411A
- Authority
- JP
- Japan
- Prior art keywords
- screw
- pipe
- coil
- carrying
- toner
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/08—Screw or rotary spiral conveyors for fluent solid materials
- B65G33/14—Screw or rotary spiral conveyors for fluent solid materials comprising a screw or screws enclosed in a tubular housing
- B65G33/16—Screw or rotary spiral conveyors for fluent solid materials comprising a screw or screws enclosed in a tubular housing with flexible screws operating in flexible tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Screw Conveyors (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用範囲〕
本発明は、粉体を任意のＡ地点からＢ地点まで搬送する
場合に、搬送通路として用いられるパイプに関するもの
で、主として複写機、レーザプリンタ等に於けるトナー
或いは、廃トナー等の搬送に使用されるパイプに関する
ものである。Detailed Description of the Invention [Scope of Industrial Application] The present invention relates to a pipe used as a conveyance passage when conveying powder from arbitrary point A to point B, and is mainly used in copying machines and laser printers. This relates to pipes used for transporting toner or waste toner, etc.
従来、複写機等で用いられている連結パイプとしては、
例えば、用紙に転写されずに感光ドラム上に残留してい
るトナーを回収するクリーナに於て、クリーナ本体と廃
トナーケース等を連結する為に以下の様に使用されるの
が一般的であった・
第１図（ａ）、第１図（ｂ）は、それぞれ、クリーナ部
の主断面図、」二視図（一部断面図）である。Conventionally, the connecting pipes used in copying machines, etc.
For example, in a cleaner that collects toner remaining on a photosensitive drum without being transferred to paper, it is generally used as shown below to connect the cleaner body and the waste toner case. - Figures 1(a) and 1(b) are a main sectional view and a second perspective view (partial sectional view) of the cleaner section, respectively.
感光ドラム１上に残留しているトナーは、クリーナ６内
に配置された、クリーナブレード２及びスポンジローラ
３によって除去され、クリーナ内に回収される。回収さ
れたトナーは、廃トナーとして搬送スクリュー４によっ
て廃トナーケース５に搬送；収納される。The toner remaining on the photosensitive drum 1 is removed by a cleaner blade 2 and a sponge roller 3 disposed in a cleaner 6, and collected in the cleaner. The collected toner is transported and stored in a waste toner case 5 by a transport screw 4 as waste toner.
この場合、特に連結パイプに相当する部品はなく、クリ
ーナ本体６の一部がそのままパイプ形状をとり、廃トナ
ーケースまで廃トナーを搬送する構造となっている。In this case, there is no part corresponding to a connecting pipe, and a part of the cleaner main body 6 takes the shape of a pipe as it is, and is structured to convey waste toner to the waste toner case.
第２図（ａ）、第２図（ｂ）図は、他の従来例で、前記
第１図（ａ）、第１図（ｂ）と異なり、搬送スクリュー
４の先端側が円弧状に曲率をもって曲がっており、廃ト
ナーは、該スクリュー４によって連結パイプ７、連結ア
ダプタ８を経て、廃トナーケース５に収納される。FIGS. 2(a) and 2(b) show other conventional examples, and unlike FIGS. 1(a) and 1(b), the distal end side of the conveying screw 4 has an arcuate curvature. The waste toner is stored in the waste toner case 5 through the connecting pipe 7 and the connecting adapter 8 by the screw 4.
この第２図（ａ）、第２図（ｂ）の様な構造は、装置本
体内のユニット配置上の問題や、廃トナーケースの容量
や、スペースの問題等で、従来よりしばしば採用されて
いる。また、連結パイプ７の材質としては、柔軟性のあ
るシリコンゴム、テフロンチューブなどが一般的である
。Structures like those shown in Figures 2(a) and 2(b) have not been often adopted in the past due to problems with unit arrangement within the device body, the capacity of the waste toner case, space issues, etc. There is. Further, as the material of the connecting pipe 7, flexible silicone rubber, Teflon tube, etc. are generally used.
〔発明が解決しようとする問題点及び発明の目的〕とこ
ろで」−述した従来例では、第２図（ｂ）図で示すとこ
ろの搬送スクリュー４の四半径Ｒが大きい時（例えばＲ
＞６０ｍｍ）は、上述した様に廃トナーはシリコンゴム
等の連結パイプ７の内部を搬送されるが、四半径Ｒが小
さくなった時（例えばＲ＞ ６０ ｍｍ）には次の様な
問題が発生する。[Problems to be Solved by the Invention and Objectives of the Invention] By the way, in the conventional example described above, when the four radii R of the conveying screw 4 as shown in FIG. 2(b) are large (for example, R
> 60 mm), the waste toner is transported inside the connecting pipe 7 made of silicone rubber, etc., as described above, but when the four radii R become small (for example, R > 60 mm), the following problems occur. Occur.
一般に搬送スクリュー４は、ピアノ線やバネ用ステンレ
ス鋼線等の金属からなっており、四半径Ｒが小さくなる
と剛性も高くなる。またスクリュー４の外径は、トナー
搬送性の面から連結パイプ７の内径より、２〜４ ｍ
ｍ程度小さいのが一般的である。これらより、スクリュ
ー４の四半径Ｒが小さくなるとＲを大きくする方向に力
が働き、スクリューと、連結パイプの接触面積は増大す
る。そのことにより、スクリューとパイプとの摺動抵抗
が著しく増大することになる。また極端な場合にはスク
リュー４がくい込み連結パイプ７が破損することもある
。また連結パイプ７を成形によらず第３図（ａ）に示す
様な直線状のパイプを第２図（ｂ）の様に四半径Ｒをつ
けて使用する場合には、曲線部のパイプ断面は第３図（
ｂ）の様に楕円状になって、スクリュー４の接触面積は
増加し、摺動抵抗も増大する。またＲが小さい場合には
、パイプが座屈することもある。Generally, the conveyance screw 4 is made of metal such as piano wire or spring stainless steel wire, and the smaller the four radii R, the higher the rigidity. In addition, the outer diameter of the screw 4 is 2 to 4 m larger than the inner diameter of the connecting pipe 7 in terms of toner conveyance.
Generally, it is as small as about m. From these, when the four radii R of the screw 4 become smaller, a force acts in the direction of increasing R, and the contact area between the screw and the connecting pipe increases. This significantly increases the sliding resistance between the screw and the pipe. Furthermore, in extreme cases, the screw 4 may bite and the connecting pipe 7 may be damaged. In addition, when the connecting pipe 7 is not formed by molding and is used as a straight pipe as shown in Fig. 3(a) with four radii R as shown in Fig. 2(b), the pipe cross section of the curved part is shown in Figure 3 (
As shown in b), the contact area of the screw 4 increases and the sliding resistance increases as well. Furthermore, if R is small, the pipe may buckle.
本発明の目的は、上記従来例の欠点を解消することにあ
る。An object of the present invention is to eliminate the drawbacks of the above-mentioned conventional examples.
第４図に本発明の一実施例を示す。 FIG. 4 shows an embodiment of the present invention.
本実施例の特徴は、連結パイプ７の内部にプラスチック
密着コイル９を設置したことである。このプラスチック
コイル９の外径は連結パイプ７の内径よりわずかに小さ
く、かつ内径は搬送スクリュー４の外径よりも１〜２ｍ
ｍ程度大きいものが望ましい。またこのプラスチックコ
イル９の材質は、ポリアセタールあるいはポリカーポ等
がよいが、特に摺動性の良好なポリアセタールが望まし
い。A feature of the present embodiment is that a plastic close-contact coil 9 is installed inside the connecting pipe 7. The outer diameter of this plastic coil 9 is slightly smaller than the inner diameter of the connecting pipe 7, and the inner diameter is 1 to 2 m larger than the outer diameter of the conveying screw 4.
It is desirable that the diameter be as large as m. The material of the plastic coil 9 is preferably polyacetal or polycarpo, but polyacetal is particularly desirable because of its good sliding properties.
またプラスチックコイル９の固定は、クリーナ本体６の
先端部（図中Ａ）と連結アダプタ８の端部（図中Ｂ）の
内径をプラスチックコイル９の外径よりも小さくしてお
けばよいし、その他接着等どんな方法によっても良い。The plastic coil 9 can be fixed by making the inner diameter of the tip of the cleaner body 6 (A in the figure) and the end of the connecting adapter 8 (B in the figure) smaller than the outer diameter of the plastic coil 9. Any other method such as adhesion may be used.
これにより、四半径Ｒが小さい場合でも、搬送スクリュ
ー４は、直接連結パイプ７と接触することなく回転する
し、プラスチックコイル９に接触しても摺動抵抗は非常
に少ないため、トナーの搬送はスムーズに行なわれる。As a result, even if the four radii R are small, the conveying screw 4 rotates without directly contacting the connecting pipe 7, and even if it comes into contact with the plastic coil 9, the sliding resistance is very small, so that the toner is not conveyed. It's done smoothly.
もちろん連結パイプ７がスクリューによって破損するこ
とはない。また、第３図（ａ）で示した様な直線状のパ
イプでも、上述した様に内部に適当なプラスチックコイ
ルを設置すればパイプ形状の補強としての役割も果たし
、ある程度のＲまでは円形の断面形状を保持可能な為、
パイプをわざわざ成形しなくとも良い場合もありうる。Of course, the connecting pipe 7 will not be damaged by the screw. In addition, even if the pipe is straight like the one shown in Figure 3(a), if a suitable plastic coil is installed inside the pipe as described above, it will serve as a reinforcement for the pipe shape, and up to a certain radius it will become circular. Because the cross-sectional shape can be maintained,
There may be cases where it is not necessary to take the trouble to shape the pipe.
なお、上記説明に於いては、クリーナと廃トナーケース
との連結パイプを例に挙げたが、もちろん廃トナーのみ
ならず、例えばトナーホッパーと現像器の連結等トナー
をはじめ、粉体の搬送に使用される種々の連結パイプに
適用できるものである。また、パイプを曲率０で直線状
に使用する場合でも前記説明した様な効果が発生する。In the above explanation, the connecting pipe between the cleaner and the waste toner case was used as an example, but of course it is not only used to convey waste toner, but also to convey toner and powder, such as connecting a toner hopper and a developing device. It can be applied to various types of connecting pipes used. Furthermore, even when the pipe is used in a straight line with zero curvature, the above-described effects occur.
以上説明した様に、シリコンゴム等からなる連結パイプ
内にプラスチックコイルを設置するという簡単な構成で
、トナー搬送スクリューの曲率をある程度まで自由に決
定することができ、それによって廃トナーボックスの配
置をはじめ、装置本体内のユニット配置等を選択するこ
とが可能になった。またトナー搬送スクリューのパイプ
部での摺動抵抗が減少するため、回転負荷トルクも低く
抑えることができる。As explained above, the curvature of the toner conveying screw can be freely determined to a certain extent with a simple configuration in which a plastic coil is installed inside a connecting pipe made of silicone rubber, etc. First, it became possible to select the arrangement of units within the device body. Furthermore, since the sliding resistance at the pipe portion of the toner conveying screw is reduced, the rotational load torque can also be kept low.
第１図（ａ）、第２図（ａ）は従来例を示す為のクリー
ナ部の断面図、第１図（ｂ）、第２図（ｂ）はその上視
図、第３図（ａ）、第３図（ｂ）は連結パイプの断面形
状を示した図、第４図は本発明の一実施例を示す上視図
である。
図において、
１は感光ドラム、４は）・ナー搬送スクリュー、５は廃
トナーケース、６はクリーナ本体、７は連結パイプ、８
は連結アダプター、９はプラスチックコイルである。Figures 1(a) and 2(a) are cross-sectional views of the cleaner section showing a conventional example, Figures 1(b) and 2(b) are top views thereof, and Figure 3(a). ), FIG. 3(b) is a diagram showing the cross-sectional shape of the connecting pipe, and FIG. 4 is a top view showing one embodiment of the present invention. In the figure, 1 is a photosensitive drum, 4 is a toner conveying screw, 5 is a waste toner case, 6 is a cleaner body, 7 is a connecting pipe, and 8 is a waste toner case.
9 is a connection adapter, and 9 is a plastic coil.
Claims (1)
、その内部にスクリューを配置したことを特徴とする粉
体搬送用パイプ。A pipe for conveying powder, characterized by having a coil made of resin in close contact with each other inside the pipe, and a screw disposed inside the coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17223484A JPS6151411A (en) | 1984-08-18 | 1984-08-18 | Powder carrying pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17223484A JPS6151411A (en) | 1984-08-18 | 1984-08-18 | Powder carrying pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6151411A true JPS6151411A (en) | 1986-03-13 |
Family
ID=15938093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17223484A Pending JPS6151411A (en) | 1984-08-18 | 1984-08-18 | Powder carrying pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6151411A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5295573A (en) * | 1989-10-26 | 1994-03-22 | Mitsubishi Cable Industries, Ltd. | Flexible screw and transport apparatus comprising same |
| US5351806A (en) * | 1992-03-11 | 1994-10-04 | Mitsubishi Cable Industries, Ltd. | Flexible screw for conveyors |
| JP2009223224A (en) * | 2008-03-18 | 2009-10-01 | Ricoh Co Ltd | Waste toner conveyance equipment, cleaner, process cartridge, image forming device, and electrophotographic equipment |
| KR101065584B1 (en) | 2009-10-05 | 2011-09-19 | 주식회사 제일레이저 | Feeding work guiding adsorption-restraint device of using coil spring |
-
1984
- 1984-08-18 JP JP17223484A patent/JPS6151411A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5295573A (en) * | 1989-10-26 | 1994-03-22 | Mitsubishi Cable Industries, Ltd. | Flexible screw and transport apparatus comprising same |
| US5396981A (en) * | 1989-10-26 | 1995-03-14 | Mitsubishi Cable Industries, Ltd. | Flexible screw and transport apparatus comprising same |
| US5351806A (en) * | 1992-03-11 | 1994-10-04 | Mitsubishi Cable Industries, Ltd. | Flexible screw for conveyors |
| JP2009223224A (en) * | 2008-03-18 | 2009-10-01 | Ricoh Co Ltd | Waste toner conveyance equipment, cleaner, process cartridge, image forming device, and electrophotographic equipment |
| KR101065584B1 (en) | 2009-10-05 | 2011-09-19 | 주식회사 제일레이저 | Feeding work guiding adsorption-restraint device of using coil spring |
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