JPH0320356U - - Google Patents
Info
- Publication number
- JPH0320356U JPH0320356U JP8144589U JP8144589U JPH0320356U JP H0320356 U JPH0320356 U JP H0320356U JP 8144589 U JP8144589 U JP 8144589U JP 8144589 U JP8144589 U JP 8144589U JP H0320356 U JPH0320356 U JP H0320356U
- Authority
- JP
- Japan
- Prior art keywords
- housing
- seal
- developing device
- bellows
- cap
- 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.)
- Granted
Links
- 239000000428 dust Substances 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Dry Development In Electrophotography (AREA)
Description
第１図は本考案の現像装置のトナー防塵装置の
構成を示す断面図、第２図は本考案が適用される
現像装置の側断面図、第３図は第２図のＸ−Ｘ線
での断面図であり、第４図は従来の現像装置にお
けるパドルローラの軸受部のシール装置の構成を
示す断面図である。
図中の符号、１……感光体ドラム、２……現像
装置、３……ハウジング、４……側フレーム、５
……マグネツトローラ、６……マグネツトトラン
スローラ、７……パドルローラ、８……ブレンダ
ー、９……駆動ギヤ装置、１０……シヤフト、１
１……ベアリング、１３，１４……マグネツトリ
ング、１５……ゴムリング、１７……Ｌ字状リン
グ、２０……キヤツプ、２１……凹溝、２２……
ゴムリング、２２ｂ……ベロー、２４……スリー
ブ、２５……シールハウジング、２５ｃ……フラ
ンジ、２８……オイルシール。
Fig. 1 is a sectional view showing the configuration of the toner dust prevention device of the developing device of the present invention, Fig. 2 is a side sectional view of the developing device to which the present invention is applied, and Fig. 3 is taken along the line X-X of Fig. 2. FIG. 4 is a cross-sectional view showing the configuration of a sealing device for a bearing portion of a paddle roller in a conventional developing device. Symbols in the diagram: 1... Photosensitive drum, 2... Developing device, 3... Housing, 4... Side frame, 5
... Magnet roller, 6 ... Magnet transformer roller, 7 ... Paddle roller, 8 ... Blender, 9 ... Drive gear device, 10 ... Shaft, 1
1... Bearing, 13, 14... Magnet ring, 15... Rubber ring, 17... L-shaped ring, 20... Cap, 21... Concave groove, 22...
Rubber ring, 22b... Bellow, 24... Sleeve, 25... Seal housing, 25c... Flange, 28... Oil seal.
Claims (1)
介してシヤフトを支持し、該シヤフトの端部にパ
ドルローラのキヤツプを固定して、該ローラーを
回転可能に支持してなる装置において、 前記パドルローラのキヤツプの側面に環状の凹
溝を形成し、該凹溝に側部にベローを設けたゴム
リングを収容し、該ゴムリングのベローを側フレ
ームに向けて突出させて配置するとともに、キヤ
ツプの中央部からシヤフトを包囲するようにして
小径部を突出させて設け、該小径部をカバーする
ようにしてスリーブを取付け、 前記現像装置の側フレームの軸受部に、ベアリ
ング部分をハウジング内部と隔てるシールハウジ
ングの基部を固定し、該シールハウジングをＬ字
状断面を有するリング状の基部とハウジングの内
側に配置される円環状のフランジとから構成し、 前記シールハウジングのＬ字状基部にオイルシ
ールを収容して内部シールを構成し、前記シール
ハウジングのフランジ部分にゴムリングのベロー
が接して外部シールを構成するようにしたことを
特徴とする現像装置のトナー防塵装置。[Claims for Utility Model Registration] A shaft is supported on the frame of the housing of the developing device via bearing means, and a paddle roller cap is fixed to the end of the shaft to rotatably support the roller. In the apparatus, an annular groove is formed on the side surface of the cap of the paddle roller, a rubber ring having a bellows on the side is accommodated in the groove, and the bellows of the rubber ring protrude toward the side frame. At the same time, a small diameter portion is provided to protrude from the center of the cap so as to surround the shaft, a sleeve is attached to cover the small diameter portion, and a bearing portion is attached to the bearing portion of the side frame of the developing device. a base of a seal housing that separates the seal housing from the inside of the housing, the seal housing is composed of a ring-shaped base having an L-shaped cross section and an annular flange disposed inside the housing; A toner dust prevention device for a developing device, characterized in that an oil seal is accommodated in a shaped base to constitute an internal seal, and a bellows of a rubber ring is in contact with a flange portion of the seal housing to constitute an external seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8144589U JPH0750753Y2 (en) | 1989-07-11 | 1989-07-11 | Toner dustproof device for developing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8144589U JPH0750753Y2 (en) | 1989-07-11 | 1989-07-11 | Toner dustproof device for developing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0320356U true JPH0320356U (en) | 1991-02-27 |
| JPH0750753Y2 JPH0750753Y2 (en) | 1995-11-15 |
Family
ID=31627397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8144589U Expired - Lifetime JPH0750753Y2 (en) | 1989-07-11 | 1989-07-11 | Toner dustproof device for developing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0750753Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0882997A (en) * | 1994-09-13 | 1996-03-26 | Canon Inc | Development device |
-
1989
- 1989-07-11 JP JP8144589U patent/JPH0750753Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0882997A (en) * | 1994-09-13 | 1996-03-26 | Canon Inc | Development device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0750753Y2 (en) | 1995-11-15 |