JPS6151410A - Powder carrying screw - Google Patents
Powder carrying screwInfo
- Publication number
- JPS6151410A JPS6151410A JP17223284A JP17223284A JPS6151410A JP S6151410 A JPS6151410 A JP S6151410A JP 17223284 A JP17223284 A JP 17223284A JP 17223284 A JP17223284 A JP 17223284A JP S6151410 A JPS6151410 A JP S6151410A
- Authority
- JP
- Japan
- Prior art keywords
- screw
- carrying
- resin
- carrying screw
- load
- 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
Abstract
Description
【発明の詳細な説明】
〔産業」二の利用範囲〕
本発明は、粉体を搬送する際に使用される搬送スクリュ
ーに関するもので、主として複写機やレーザプリンタ等
のトナー搬送用スクリューに関するものである。[Detailed Description of the Invention] [Scope of Application in Industry 2] The present invention relates to a conveying screw used for conveying powder, and mainly relates to a toner conveying screw for copying machines, laser printers, etc. be.
従来、複写機等の現像器やクリーナ等に使用されている
トナー搬送用スクリューは、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、線材の断面形状が長方
形、或いは円形であるのが一般的であった。Conventionally, toner transport screws used in developing units and cleaners of copying machines, etc. are made of metal such as piano wire or stainless steel wire for springs, and the cross-sectional shape of the wire is rectangular or circular. was common.
これらのスクリューは直線状に使用する場合は特に問題
ないが、装置内のスペースやユニット配置上の問題、廃
トナー容量の問題等で搬送スクリューを曲げて使用する
場合には以下の様な欠点があった。There is no particular problem when these screws are used in a straight line, but if the conveyance screw is bent due to space inside the device, unit placement, waste toner capacity, etc., the following disadvantages occur. there were.
第１図はクリーナ部分の老視図（一部断面図）である。FIG. 1 is a perspective view (partially sectional view) of the cleaner portion.
簡単に説明すると、用紙に転写されずに残留したトナー
は、クリーナ本体６に設置されている不図示のクリーニ
ングブレードとスポンジローラ３によって感光ドラム１
の表面から除去され、搬送スクリュー４によって連結パ
イプ７の内部を搬送され連結アダプタ８を経て廃トナー
ケース５に収納される。ここで連結パイプ７は、一般に
シリコンゴムホースやテフロンチューブ等からなってい
る為、スクリューとパイプ内径の接触面積が増大し、摺
動抵抗も著しく増加することになるし、極端な場合はス
クリューがノくイブにくい込んでパイプを破損すること
さえある。Briefly, toner remaining without being transferred to the paper is removed from the photosensitive drum 1 by a cleaning blade (not shown) installed in the cleaner body 6 and a sponge roller 3.
The waste toner is removed from the surface of the toner, is transported inside the connecting pipe 7 by the transporting screw 4, and is stored in the waste toner case 5 via the connecting adapter 8. Here, since the connecting pipe 7 is generally made of a silicone rubber hose or a Teflon tube, the contact area between the screw and the inside diameter of the pipe increases, and the sliding resistance increases significantly. It may even get stuck in the pipe and damage the pipe.
また、金属性の搬送スクリューは比較的剛性が高いうえ
に、直線状のものを無理に曲げて使用している為、曲半
径Ｒを大きくする方向に復元力が作用し、前述した連結
パイプとの摺動負荷増大もあり、スクリューの回転負荷
トルクの増大、及び回転負荷変動等をもたらすことにな
る。In addition, the metal conveying screw has relatively high rigidity, and since it is used by forcing a straight line, a restoring force acts in the direction of increasing the radius of curvature R. There is also an increase in the sliding load, which results in an increase in the rotational load torque of the screw and fluctuations in the rotational load.
この場合、感光ドラムの回転と搬送スクリューの回転が
ギア列等によって連結されていると、スクリューの回転
負荷変動によって、感光ドラムの回転にムラを生じ、用
紙上の画像にまで悪影響を及ぼすことがある。もちろん
、搬送スクリューの断面寸法、巻径、巻ピッチ等を選択
することによって、ある程度剛性等も変化させることは
可能であるが１曲半径Ｒの程度によっては使用可能な限
界が存在していた。In this case, if the rotation of the photosensitive drum and the rotation of the conveyance screw are connected by a gear train, etc., variations in the rotational load of the screw may cause uneven rotation of the photosensitive drum, which may adversely affect the image on the paper. be. Of course, it is possible to change the rigidity to some extent by selecting the cross-sectional dimensions, winding diameter, winding pitch, etc. of the conveying screw, but there is a usable limit depending on the degree of the radius R of one curve.
本発明は、上述従来例の欠点、特に搬送スクリューを曲
げて使用する場合の問題点を解決することを目的とした
ものである。The present invention aims to solve the drawbacks of the above-mentioned conventional examples, especially the problems when the conveying screw is used with a bent position.
本発明の特徴は、トナー搬送スクリューの材質を樹脂に
したことである。A feature of the present invention is that the material of the toner conveying screw is resin.
プラスチ・ンクスクリューにすると第１図の様に曲げて
使用しても、同寸法、同形状の従来の金属製スクリュー
と比較して剛性が低く、曲半径Ｒを大きくする方向への
復元力も少ない。この為、スクリューの回転負荷トルク
や負荷変動が減少し、前述した画像への悪影響も発生し
にくくなる。また、プラスチックスクリユーにすること
によって、例えば第２図に示す様に曲半（￥Ｒを小さく
とっても（例えばＲ＝３５ｍｍ）前述した様な欠点が発
生しにくくなる。When using a plastin screw, even if it is bent as shown in Figure 1, it has lower rigidity than a conventional metal screw of the same size and shape, and has less restoring force in the direction of increasing the radius of curvature R. . Therefore, the rotational load torque and load fluctuation of the screw are reduced, and the above-mentioned adverse effects on the image are less likely to occur. Furthermore, by using a plastic screw, the above-mentioned defects are less likely to occur even if the radius of the screw is small (for example, R=35 mm) as shown in FIG.
また、他の実施例として、従来の金属製スクリューの表
面に樹脂をコーティングする方法がある。Another example is a method of coating the surface of a conventional metal screw with resin.
第３図はその形状を示す図である。１０は従来の金属製
スクリューを示し、１１はその周囲にコーティングされ
た樹脂を示す。この樹脂被膜は例えば厚さ０．３〜０．
５＋ｎｍ程度のポリアセクール。FIG. 3 is a diagram showing its shape. Reference numeral 10 indicates a conventional metal screw, and reference numeral 11 indicates a resin coated around the screw. This resin coating has a thickness of, for example, 0.3 to 0.
Polyacecool of about 5+nm.
テフトン等が望ましい。Tefton etc. is preferable.
本実施例は剛性の点では、従来より改善されることはな
いが、連結パイプ部での摺動性を向上させる点で有効な
手段であり、パイプの破損防止等にも有効である。Although this embodiment does not provide any improvement over the conventional method in terms of rigidity, it is an effective means for improving the slidability in the connecting pipe portion, and is also effective in preventing damage to the pipes.
なお、」−記説明に於ては、スクリューを曲げて使用す
る場合についてのみ詳述したが１本発明によれば、もち
ろん直線状に使用する場合でも軽量化が図れる、摺動性
が向上するなどの効果があることは明らかである。In addition, in the description, only the case where the screw is used in a bent manner is described in detail, but according to the present invention, of course, even when the screw is used in a straight position, the weight can be reduced and the slidability can be improved. It is clear that there are effects such as
第１図、第２図はクリーナ部の上視図、第３図（ａ）は
他の実施例を示すスクリューの上視図、第３図（ｂ）は
そのＡ−Ａ断面図である。
図において、４はト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、１０は金
属製のトナー搬送スクリュー、１１は樹脂被膜である。1 and 2 are top views of the cleaner section, FIG. 3(a) is a top view of a screw showing another embodiment, and FIG. 3(b) is a sectional view taken along the line AA. In the figure, 4 is a toner conveying screw, 5 is a waste toner case, 6 is a cleaner body, 7 is a connecting pipe, 10 is a metal toner conveying screw, and 11 is a resin coating.
Claims (1)
に於いて、該スクリュー状部材の材質が樹脂であること
を特徴とする粉体搬送スク リュー。 ２、回転連動によって粉体を搬送するスクリュー状部材
に於いて、該スクリュー状部材の断面は中心部が金属か
らなり、その周囲に樹脂被膜を有することを特徴とする
粉体搬送スクリュー。[Scope of Claims] 1. A powder conveying screw, which is a screw-like member that conveys powder by interlocking rotation, characterized in that the material of the screw-like member is resin. 2. A powder conveying screw, which is a screw-like member that conveys powder by interlocking rotation, characterized in that the cross-section of the screw-like member is made of metal at the center and has a resin coating around it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17223284A JPS6151410A (en) | 1984-08-18 | 1984-08-18 | Powder carrying screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17223284A JPS6151410A (en) | 1984-08-18 | 1984-08-18 | Powder carrying screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6151410A true JPS6151410A (en) | 1986-03-13 |
Family
ID=15938051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17223284A Pending JPS6151410A (en) | 1984-08-18 | 1984-08-18 | Powder carrying screw |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6151410A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS64586A (en) * | 1986-11-21 | 1989-01-05 | Ricoh Co Ltd | Fault detector for copying machine |
| US5458759A (en) * | 1991-08-02 | 1995-10-17 | Anelva Corporation | Magnetron sputtering cathode apparatus |
| US5922176A (en) * | 1992-06-12 | 1999-07-13 | Donnelly Corporation | Spark eliminating sputtering target and method for using and making same |
| JP2002001166A (en) * | 2000-04-21 | 2002-01-08 | Arusu:Kk | Continuous centrifugal dehydrator |
| JP2010281927A (en) * | 2009-06-03 | 2010-12-16 | Fuji Xerox Co Ltd | Image forming apparatus and image holding device |
| US11834972B2 (en) | 2018-09-19 | 2023-12-05 | Saudi Arabian Oil Company | Turbomachinery lubrication system improvement gravity rundown tanks |
-
1984
- 1984-08-18 JP JP17223284A patent/JPS6151410A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS64586A (en) * | 1986-11-21 | 1989-01-05 | Ricoh Co Ltd | Fault detector for copying machine |
| US5458759A (en) * | 1991-08-02 | 1995-10-17 | Anelva Corporation | Magnetron sputtering cathode apparatus |
| US5922176A (en) * | 1992-06-12 | 1999-07-13 | Donnelly Corporation | Spark eliminating sputtering target and method for using and making same |
| JP2002001166A (en) * | 2000-04-21 | 2002-01-08 | Arusu:Kk | Continuous centrifugal dehydrator |
| JP2010281927A (en) * | 2009-06-03 | 2010-12-16 | Fuji Xerox Co Ltd | Image forming apparatus and image holding device |
| US11834972B2 (en) | 2018-09-19 | 2023-12-05 | Saudi Arabian Oil Company | Turbomachinery lubrication system improvement gravity rundown tanks |
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