JPH0377968U - - Google Patents
Info
- Publication number
- JPH0377968U JPH0377968U JP13928889U JP13928889U JPH0377968U JP H0377968 U JPH0377968 U JP H0377968U JP 13928889 U JP13928889 U JP 13928889U JP 13928889 U JP13928889 U JP 13928889U JP H0377968 U JPH0377968 U JP H0377968U
- Authority
- JP
- Japan
- Prior art keywords
- gear
- planetary gear
- fixing
- engages
- fixing roller
- 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
- 238000010586 diagram Methods 0.000 description 3
Description
第１図はこの考案の一実施例であるレーザプリ
ンタの一部の概略構成図、第２図はその作動を説
明する説明図、第３図はそのレーザプリンタの内
部機構の全体概略構成図である。
１０ａ……上構造体、１０ｂ……下構造体、２
４ａ……定着ローラ、２４ｂ……加圧ローラ、２
４ｃ……定着ギヤ、３０……遊星ギヤ、３１……
太陽ギヤ、３２……腕、３７ｃ……ラツク（係合
部）。
Fig. 1 is a schematic diagram of a part of a laser printer that is an embodiment of this invention, Fig. 2 is an explanatory diagram illustrating its operation, and Fig. 3 is a schematic diagram of the entire internal mechanism of the laser printer. be. 10a...upper structure, 10b...lower structure, 2
4a... Fixing roller, 24b... Pressure roller, 2
4c... Fixing gear, 30... Planetary gear, 31...
Sun gear, 32... arm, 37c... rack (engaging part).
Claims (1)
下構造体内に、定着ローラと、その定着ローラに
一定の加圧力で押し当てる加圧ローラとを設けて
なる電子写真装置において、 前記下構造体に、駆動源からの駆動力を伝える
太陽ギヤと、中心軸間を腕で連結して前記太陽ギ
ヤのまわりを自転しながら公転する遊星ギヤと、
前記遊星ギヤを付勢して前記定着ローラの定着ギ
ヤとかみあわす付勢部材とを設け、 前記上構造体に、その上構造体の開動作にとも
ない前記遊星ギヤに直接または間接的に係合し、
前記付勢部材に抗してその遊星ギヤを公転して前
記定着ギヤとのかみあいを解除するとともに、そ
の上構造体の閉動作にともない前記係合を外し、
その遊星ギヤを公転して前記付勢部材によつて再
度前記定着ギヤとかみあわす係合部を設けてなる
、 電子写真装置。[Claims for Utility Model Registration] An upper structure is supported by a lower structure so as to be openable and closable, and a fixing roller and a pressure roller that presses against the fixing roller with a constant pressure are provided in the lower structure. An electrophotographic apparatus comprising: a sun gear that transmits a driving force from a driving source to the lower structure; a planetary gear that connects a central axis with an arm and revolves around the sun gear while rotating;
A biasing member that biases the planetary gear and engages with the fixing gear of the fixing roller is provided in the upper structure, and also engages directly or indirectly with the planetary gear as the upper structure opens. death,
revolving the planetary gear against the biasing member to disengage the fixing gear, and further disengage the engagement with the closing operation of the structure;
An electrophotographic apparatus, further comprising an engaging portion that rotates the planetary gear and engages with the fixing gear again by the urging member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13928889U JPH0377968U (en) | 1989-11-30 | 1989-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13928889U JPH0377968U (en) | 1989-11-30 | 1989-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0377968U true JPH0377968U (en) | 1991-08-06 |
Family
ID=31686345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13928889U Pending JPH0377968U (en) | 1989-11-30 | 1989-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0377968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8412072B2 (en) | 2006-09-28 | 2013-04-02 | Brother Kogyo Kabushiki Kaisha | Fixing device and image-forming apparatus |
-
1989
- 1989-11-30 JP JP13928889U patent/JPH0377968U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8412072B2 (en) | 2006-09-28 | 2013-04-02 | Brother Kogyo Kabushiki Kaisha | Fixing device and image-forming apparatus |