JP2002122132A - Sliding bearing for printer - Google Patents
Sliding bearing for printerInfo
- Publication number
- JP2002122132A JP2002122132A JP2000311666A JP2000311666A JP2002122132A JP 2002122132 A JP2002122132 A JP 2002122132A JP 2000311666 A JP2000311666 A JP 2000311666A JP 2000311666 A JP2000311666 A JP 2000311666A JP 2002122132 A JP2002122132 A JP 2002122132A
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- sliding
- sliding bearing
- shaft
- noise
- 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
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- Electrophotography Configuration And Component (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、印字装置のすべり
軸受に関する。The present invention relates to a sliding bearing for a printing apparatus.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】印字装
置のすべり軸受として用いられる樹脂製軸受に関して
は、特開平０８−０４１号公報、特開平０９−０４６号
公報、特開平１１−０３７号公報等に開示されているも
のがある。また、粉塵対策としてＧシールを軸受両側に
配置し、軸受部に粉塵が入らないようにしているものも
ある。2. Description of the Related Art A resin bearing used as a sliding bearing of a printing apparatus is disclosed in JP-A-08-041, JP-A-09-046, and JP-A-11-037. And the like. In some cases, as a measure against dust, G seals are arranged on both sides of the bearing to prevent dust from entering the bearing portion.
【０００３】ところで国内ではエコマーク、欧州ではＢ
ＡＭ規格等、複写機等の騒音が各国で基準化され始めて
きた。各メーカーは複写機、プリンタなど印字装置の静
音化設計を手がけ始めている。その中で、機能音と異常
音に選別され、機能音（ギヤのたたき音やベルトなどの
音）は静音化設計により徐々に良くなっている。しかし
ながら異常音に関しては、場当たり的な対処でグリス塗
布などで対応されている。たとえば樹脂軸受の場合は、
粉塵が入らなくても摩耗紛が発生し、その摩耗紛が摺動
音の原因となる。特に導電性樹脂の場合は、材料にカー
ボンなどの導電材料を入れるため、摩耗紛が発生しやす
い。また焼結合金のすべり軸受は、樹脂製より精度良
く、安価なため、さらに広く使用されているが、軸受内
にオイルを含浸させているため、異物（例えば、トナー
等）が混入した場合、トナーとオイルが混ざりあってペ
ースト状になり、その後摺動音が発生する場合がある。[0003] By the way, Eco Mark in Japan and B in Europe
Noise of copying machines, such as AM standards, has begun to be standardized in each country. Manufacturers have begun designing silent printers such as copiers and printers. Among them, functional sounds and abnormal sounds are selected, and the functional sounds (sounds of gear tapping, belts, etc.) have been gradually improved by the silent design. However, abnormal noise is dealt with by grease application or the like in an ad hoc manner. For example, in the case of resin bearings,
Even if dust does not enter, abrasion powder is generated, and the abrasion powder causes sliding noise. Particularly, in the case of a conductive resin, since a conductive material such as carbon is added to the material, abrasion powder is likely to be generated. Sintered alloy plain bearings are more widely used because they are more accurate and less expensive than those made of resin.However, since oil is impregnated in the bearing, when foreign matter (for example, toner, etc.) is mixed, In some cases, the toner and the oil are mixed to form a paste, and then a sliding noise is generated.
【０００４】そこで本発明は、異常音、特に摺動音（い
わゆるキュルキュル音）を無くした印字装置のすべり軸
受を提供することを目的とする。[0004] Therefore, an object of the present invention is to provide a sliding bearing for a printing apparatus which eliminates abnormal noise, particularly sliding noise (so-called curculing noise).
【０００５】また本発明は、軸のスラスト方向への移動
に起因する反力を打ち消すことが可能な印字装置のすべ
り軸受を提供することを目的とする。Another object of the present invention is to provide a sliding bearing of a printing apparatus which can cancel a reaction force caused by movement of a shaft in a thrust direction.
【０００６】また本発明は、より効率良く軸受の摩耗
紛、粉塵などを排出することが可能な印字装置のすべり
軸受を提供することを目的とする。Another object of the present invention is to provide a sliding bearing for a printing apparatus capable of more efficiently discharging abrasion powder, dust and the like of the bearing.
【０００７】また本発明は、特に摺動音が大きい樹脂製
のものでもグリス塗布等をせずに静音化でき、また異物
が軸受摺動面に侵入しても容易に排出可能な印字装置の
すべり軸受を提供することを目的とする。Further, the present invention provides a printing apparatus which is capable of reducing noise without applying grease even if the material is made of a resin which has a particularly large sliding noise, and which can easily discharge even if foreign matter enters the sliding surface of the bearing. It is intended to provide a plain bearing.
【０００８】さらに本発明は、焼結合金のすべり軸受等
で、異物が軸受摺動面に侵入しても容易に排出でき、軸
受としての本来の性能を維持可能な印字装置のすべり軸
受を提供することを目的とする。Further, the present invention provides a sliding bearing for a printing apparatus, such as a sintered alloy sliding bearing, which can easily discharge foreign substances even if it enters the bearing sliding surface and can maintain the original performance as a bearing. The purpose is to do.
【０００９】[0009]
【課題を解決するための手段】本発明の請求項１に係る
印字装置のすべり軸受は、上記目的を達成するために、
トナー及び現像材を帯電させて感光体上に画像を形成
し、紙に転写して画像を作成する印字装置のすべり軸受
において、内面の軸との摺動部分にスパイラル状の溝を
設けたことを特徴とする。According to a first aspect of the present invention, there is provided a plain bearing for a printing apparatus, which achieves the above object.
In a sliding bearing of a printing device that forms an image on a photoreceptor by charging toner and a developer and transfers it to paper to create an image, a spiral groove is provided in a sliding portion with an inner shaft. It is characterized by.
【００１０】同請求項２に係るものは、上記目的を達成
するために、請求項１の印字装置のすべり軸受におい
て、上記溝のスパイラルが軸方向中央部から両端部に向
かい逆回転スパイラル状であることを特徴とする。According to a second aspect of the present invention, in order to achieve the above object, in the sliding bearing of the printing apparatus according to the first aspect, the spiral of the groove is formed in a reverse rotation spiral shape from the axial center toward both ends. There is a feature.
【００１１】同請求項３に係るものは、上記目的を達成
するために、請求項１または２の印字装置のすべり軸受
において、上記溝のスパイラル形状が複数条で形成され
ていることを特徴とする。According to a third aspect of the present invention, in order to achieve the above object, in the sliding bearing of the printing apparatus according to the first or second aspect, the spiral shape of the groove is formed by a plurality of grooves. I do.
【００１２】同請求項４に係るものは、上記目的を達成
するために、請求項１ないし３のいずれかの印字装置の
すべり軸受において、導電性樹脂等の樹脂製であること
を特徴とする。According to a fourth aspect of the present invention, in order to achieve the above object, the sliding bearing of the printing apparatus according to any one of the first to third aspects is characterized in that the sliding bearing is made of a resin such as a conductive resin. .
【００１３】同請求項５に係るものは、上記目的を達成
するために、請求項１ないし３のいずれかの印字装置の
すべり軸受において、焼結合金製であることを特徴とす
る。According to a fifth aspect of the present invention, in order to achieve the above object, the sliding bearing of the printing apparatus according to any one of the first to third aspects is characterized by being made of a sintered alloy.
【００１４】[0014]
【発明の実施の形態】以下本発明の実施の形態を図面を
参照して説明する。図１は本発明に係るすべり軸受を用
いる対象となる印字装置の全体構成図である。この印字
装置は、自動原稿読取装置９で読み取った画像を、給紙
ユニット１より給紙された紙に印字するもので、印字プ
ロセスは、光学系２よりレーザーにより感光体ユニット
４の感光体に潜像を書きこみ、現像部分で顕像化し、顕
像化された像を紙に転写し、定着ユニット６で紙に定着
させる。その後、排紙分離部７で、両面時は両面器５
へ、上排紙時は上排紙ビン８へ、フィニッシャ排紙時は
中継ユニット１０経由でフィニッシャ１１へ排紙する。
手差し部３もオプションで装備できる。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall configuration diagram of a printing apparatus to which the sliding bearing according to the present invention is applied. This printing device prints an image read by the automatic document reading device 9 on the paper fed from the paper feeding unit 1. The printing process is performed by the laser from the optical system 2 to the photoconductor of the photoconductor unit 4. The latent image is written, visualized in the developed part, the visualized image is transferred to paper, and fixed on the paper by the fixing unit 6. After that, in the paper separating unit 7, the duplexer 5
The paper is discharged to the upper discharge bin 8 at the time of upper discharge, and to the finisher 11 via the relay unit 10 at the time of discharge at the finisher.
The manual feed unit 3 can also be optionally equipped.
【００１５】本発明は、図１のような複写プロセスを使
用した印字装置とその感光体周りを駆動する駆動部分に
関するものである。図２（Ａ）、（Ｂ）に、軸受摺動部
分にスパイラルの溝を備えた本発明に係るすべり軸受の
一実施形態を示す。図中２０が軸受で、軸受摺動面２１
スパイラル状の溝２２が形成してある。The present invention relates to a printing apparatus using a copying process as shown in FIG. 1 and a driving portion for driving around a photosensitive member. 2 (A) and 2 (B) show an embodiment of a sliding bearing according to the present invention having a spiral groove in a sliding portion of the bearing. In the figure, reference numeral 20 denotes a bearing;
A spiral groove 22 is formed.
【００１６】この実施形態を説明する前に、一般的な樹
脂軸受の摺動音（キュルキュル音）の発生メカニズムを
説明する。図示せぬ軸が回転し、トナー、剤、紙紛等が
軸受２０の軸受摺動面２１と軸の間に入り込むと、剤、
紙粉が軸の表面を荒らし、軸受２０の摩耗粉が多量に発
生する。この摩耗粉が軸表面で転がり始めると、摩耗紛
が軸表面に焼き付き、樹脂対樹脂の摺動となる。そして
通常環境下よりも短時間で異常音が発生する。Before describing this embodiment, a mechanism of generating a sliding noise (curky sound) of a general resin bearing will be described. When the shaft (not shown) rotates and toner, agent, paper dust, etc. enter between the bearing sliding surface 21 of the bearing 20 and the shaft, the agent,
Paper dust roughens the surface of the shaft, and a large amount of wear powder of the bearing 20 is generated. When the abrasion powder starts rolling on the shaft surface, the abrasion powder is seized on the shaft surface, resulting in resin-to-resin sliding. An abnormal sound is generated in a shorter time than in a normal environment.
【００１７】軸受摺動面に粉塵や摩耗紛が溜まることが
異常音発生原因の第一であるので、軸受摺動面２１にス
パイラル状の溝２２を形成し、その溝２２を利用して粉
塵（印字装置の場合は、トナーや紙粉等）や摩耗紛を軸
受摺動面２１から除去し、摺動音の発生を防ぐ。Since the accumulation of dust and abrasion powder on the bearing sliding surface is the first cause of the generation of abnormal noise, a spiral groove 22 is formed on the bearing sliding surface 21, and the dust 22 is formed by using the groove 22. (In the case of a printing apparatus, toner and paper dust, etc.) and wear powder are removed from the bearing sliding surface 21 to prevent the occurrence of sliding noise.
【００１８】焼結軸受の場合は、既に述べたようにオイ
ルが含浸されていて摩耗粉より軸受外部からの粉塵（印
字装置の場合は、トナーや紙粉等）とオイルが混ざりペ
ースト状になるので、ペースト状になったものを、スパ
イラル状の溝を利用し軸受摺動面より除去する。In the case of a sintered bearing, as described above, oil is impregnated, and dust (such as toner and paper powder in the case of a printing device) and oil from the outside of the bearing are mixed with abrasion powder to form a paste. Therefore, the paste-like material is removed from the bearing sliding surface by using a spiral groove.
【００１９】図３（Ａ）、（Ｂ）に本発明に係るすべり
軸受の他の実施形態を示す。本実施形態の軸受は、軸受
３０の軸受摺動面３１の中央部分ＣＬから両端方向に逆
スパイラルの溝３２を備えている。摺動音の発生防止に
関しては先の実施形態と同様である。なお先の実施形態
では、溝が１方向で軸の回転方向でスラスト方向に軸力
を受けるが、本実施形態では両方向に逆スパイラルの溝
３２を配置することで軸の回転方向に関係なく、軸に働
くスラスト方向の力を相殺している。FIGS. 3A and 3B show another embodiment of the plain bearing according to the present invention. The bearing of the present embodiment is provided with a reverse spiral groove 32 in both end directions from the central portion CL of the bearing sliding surface 31 of the bearing 30. The prevention of the occurrence of sliding noise is the same as in the previous embodiment. In the above embodiment, the groove receives an axial force in one direction in the rotational direction of the shaft in the thrust direction, but in the present embodiment, by disposing the reverse spiral groove 32 in both directions, regardless of the rotational direction of the shaft, It offsets the thrust force acting on the shaft.
【００２０】なお、上述した実施形態は、いずれも溝を
１条としてあるが、軸受の大きさにもよるが、２条、３
条とすることができればそのほうが効率がよい。In each of the above embodiments, one groove is used. However, depending on the size of the bearing, two or three grooves may be used.
It is more efficient if it can be made into an article.
【００２１】[0021]
【発明の効果】請求項１の印字装置のすべり軸受は、以
上説明してきたようなものなので、異常音、キュルキュ
ル音（摺動音）について対策を行え、軸受摺動音を無く
すことができるという効果がある。According to the first aspect of the present invention, since the sliding bearing of the printing apparatus is as described above, it is possible to take measures against abnormal noise and curculous noise (sliding noise) and eliminate bearing sliding noise. effective.
【００２２】請求項２の印字装置のすべり軸受は、以上
説明してきたようなものなので、軸が回転することによ
って受けるスラスト方向の反力を打ち消すことができる
という効果がある。Since the sliding bearing of the printing apparatus according to the second aspect is as described above, there is an effect that the reaction force in the thrust direction received by the rotation of the shaft can be canceled.
【００２３】請求項３の印字装置のすべり軸受は、以上
説明してきたようなものなので、より効率よく、軸受の
摩耗紛、粉塵などを排出できるという効果がある。Since the sliding bearing of the printing apparatus according to the third aspect is as described above, there is an effect that abrasion powder, dust and the like of the bearing can be discharged more efficiently.
【００２４】請求項４の印字装置のすべり軸受は、以上
説明してきたようなものなので、グリス塗布せずに樹脂
製軸受を異音を発生させずに使用でき、また、異物が軸
受摺動面に侵入しても、スパイラル状の溝に沿わせて排
出できるという効果がある。Since the sliding bearing of the printing apparatus according to the fourth aspect is as described above, the resin bearing can be used without applying grease without generating abnormal noise, and foreign matter can be used on the sliding surface of the bearing. Has the effect of being able to be discharged along the spiral groove.
【００２５】請求項５の印字装置のすべり軸受は、以上
説明してきたようなものなので、焼結合金のすべり軸受
でトナーとオイルが混じってペースト状になっても、ス
パイラル状の溝に沿わせて排出でき、軸受としての本来
の性能を維持できるという効果がある。Since the sliding bearing of the printing apparatus according to the fifth aspect is as described above, even if the toner and oil are mixed into a paste by the sintered alloy sliding bearing, the sliding bearing is formed along the spiral groove. And can maintain the original performance as a bearing.
【図１】本発明に係るすべり軸受を用いる対象となる印
字装置の全体構成図である。FIG. 1 is an overall configuration diagram of a printing apparatus to which a sliding bearing according to the present invention is applied.
【図２】本発明に係るすべり軸受の一実施形態を示す斜
視図（Ａ）、断面図（Ｂ）である。FIG. 2 is a perspective view (A) and a cross-sectional view (B) showing an embodiment of the sliding bearing according to the present invention.
【図３】本発明に係るすべり軸受の他の実施形態を示す
斜視図（Ａ）、断面図（Ｂ）である。FIG. 3 is a perspective view (A) and a cross-sectional view (B) showing another embodiment of the plain bearing according to the present invention.
２０ 軸受 ２１ 軸受摺動面 ２２ 溝 ３０ 軸受 ３１ 軸受摺動面 ３２ 溝 Reference Signs List 20 bearing 21 bearing sliding surface 22 groove 30 bearing 31 bearing sliding surface 32 groove
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 2H071 CA02 CA05 DA08 EA00 3J011 AA20 BA06 CA01 DA01 KA02 LA01 LA05 MA03 PA02 SB19 SC20 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2H071 CA02 CA05 DA08 EA00 3J011 AA20 BA06 CA01 DA01 KA02 LA01 LA05 MA03 PA02 SB19 SC20
Claims (5)
に画像を形成し、紙に転写して画像を作成する印字装置
のすべり軸受において、内面の軸との摺動部分にスパイ
ラル状の溝を設けたことを特徴とする印字装置のすべり
軸受。In a sliding bearing of a printing apparatus for forming an image on a photoreceptor by charging a toner and a developing material and transferring the image to paper to form an image, a spiral portion is formed on a sliding portion of an inner surface with a shaft. A sliding bearing for a printing device, wherein a groove is provided.
て、上記溝のスパイラルが軸方向中央部から両端部に向
かい逆回転スパイラル状であることを特徴とする印字装
置のすべり軸受。2. A sliding bearing for a printing apparatus according to claim 1, wherein the spiral of said groove has a reverse rotation spiral shape from an axial center to both ends.
受において、上記溝のスパイラル形状が複数条で形成さ
れていることを特徴とする印字装置のすべり軸受。3. The sliding bearing for a printing device according to claim 1, wherein the spiral shape of the groove is formed by a plurality of grooves.
のすべり軸受において、導電性樹脂等の樹脂製であるこ
とを特徴とする印字装置のすべり軸受。4. A sliding bearing for a printing apparatus according to claim 1, wherein said sliding bearing is made of a resin such as a conductive resin.
のすべり軸受において、焼結合金製であることを特徴と
する印字装置のすべり軸受。5. A sliding bearing for a printing apparatus according to claim 1, wherein said sliding bearing is made of a sintered alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000311666A JP2002122132A (en) | 2000-10-12 | 2000-10-12 | Sliding bearing for printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000311666A JP2002122132A (en) | 2000-10-12 | 2000-10-12 | Sliding bearing for printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002122132A true JP2002122132A (en) | 2002-04-26 |
Family
ID=18791386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000311666A Pending JP2002122132A (en) | 2000-10-12 | 2000-10-12 | Sliding bearing for printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002122132A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7597321B2 (en) | 2004-10-14 | 2009-10-06 | Funai Electric Co., Ltd. | Image forming apparatus |
| JP2011158566A (en) * | 2010-01-29 | 2011-08-18 | Kyocera Mita Corp | Optical scanner and image forming apparatus |
| CN102645882A (en) * | 2011-02-21 | 2012-08-22 | 夏普株式会社 | Waste toner recovery unit |
| CN103115076A (en) * | 2013-03-29 | 2013-05-22 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Sliding bearing with spiral cooling channel |
| JP2015206889A (en) * | 2014-04-21 | 2015-11-19 | 京セラドキュメントソリューションズ株式会社 | Fixing device and image forming apparatus |
| JP2016034305A (en) * | 2014-08-01 | 2016-03-17 | 株式会社高尾 | Pinball game machine |
| JP2017187607A (en) * | 2016-04-05 | 2017-10-12 | 京セラドキュメントソリューションズ株式会社 | Rotation detection mechanism, fixation device and image forming apparatus having the same |
-
2000
- 2000-10-12 JP JP2000311666A patent/JP2002122132A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7597321B2 (en) | 2004-10-14 | 2009-10-06 | Funai Electric Co., Ltd. | Image forming apparatus |
| JP2011158566A (en) * | 2010-01-29 | 2011-08-18 | Kyocera Mita Corp | Optical scanner and image forming apparatus |
| CN102645882A (en) * | 2011-02-21 | 2012-08-22 | 夏普株式会社 | Waste toner recovery unit |
| JP2012173439A (en) * | 2011-02-21 | 2012-09-10 | Sharp Corp | Waste toner recovery unit and image forming device |
| CN102645882B (en) * | 2011-02-21 | 2014-12-17 | 夏普株式会社 | Waste toner recovery unit |
| CN103115076A (en) * | 2013-03-29 | 2013-05-22 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Sliding bearing with spiral cooling channel |
| JP2015206889A (en) * | 2014-04-21 | 2015-11-19 | 京セラドキュメントソリューションズ株式会社 | Fixing device and image forming apparatus |
| JP2016034305A (en) * | 2014-08-01 | 2016-03-17 | 株式会社高尾 | Pinball game machine |
| JP2017187607A (en) * | 2016-04-05 | 2017-10-12 | 京セラドキュメントソリューションズ株式会社 | Rotation detection mechanism, fixation device and image forming apparatus having the same |
| CN107367917A (en) * | 2016-04-05 | 2017-11-21 | 京瓷办公信息***株式会社 | Rotate testing agency, fixing device and image processing system |
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