JPS61192919A - Switchgear for electrophotography recorder - Google Patents
Switchgear for electrophotography recorderInfo
- Publication number
- JPS61192919A JPS61192919A JP60033563A JP3356385A JPS61192919A JP S61192919 A JPS61192919 A JP S61192919A JP 60033563 A JP60033563 A JP 60033563A JP 3356385 A JP3356385 A JP 3356385A JP S61192919 A JPS61192919 A JP S61192919A
- Authority
- JP
- Japan
- Prior art keywords
- upper unit
- opening
- unit
- torsion spring
- return spring
- 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
Landscapes
- Pivots And Pivotal Connections (AREA)
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、２分割式複写機等の開閉可能の筺体からなる
電子写真記録装置に使用される上方ユニットの開閉装置
の改良に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement in an opening/closing device for an upper unit used in an electrophotographic recording device consisting of an openable/closable housing such as a two-part copying machine. .
上方ユニットを下方ユニットに対してその蝶番による結
合部分を支点としてほぼ記録紙の給紙径路に沿って開放
し、筺体内の取扱いやメンテナンス作業を容易にした機
材は、２分割式複写機その他電子写真記録装置に多く見
られるところである。Equipment in which the upper unit is opened along the recording paper feed path using its hinged connection to the lower unit as a fulcrum, making handling and maintenance work inside the housing easier, is a two-part type copying machine and other electronic equipment. This is often seen in photographic recording devices.
か＼る機材の上方ユニットは、一般に手動によって開放
されるものであるが、複写機の場合のように画像形成の
ためのドラムカートリッジ等重直の大きい部材を収容し
た上方ユニットでは、手動だけでは開放が困難であって
その開放動作を補助する目的で、上方ユニットと下方ユ
ニットとの間でオイルダンパー、捩りばね停を蓄勢した
状懇に保ち、上方ユニットの開放と同時に捩シばねの弾
力が作用して上方ユニットを開放方向に付勢させる構造
をとっている例が多い。The upper unit of such equipment is generally opened manually, but in the case of an upper unit that houses a large member such as a drum cartridge for image formation, as in the case of a copying machine, it cannot be opened manually. In order to assist in the opening operation when opening is difficult, an oil damper and a torsion spring stop are kept in a stored state between the upper unit and the lower unit, and the elasticity of the torsion spring is reduced at the same time as the upper unit is opened. In many cases, the structure is such that the upper unit is biased in the opening direction.
特にこ＼で使用される捩りばねはは’ｆ４５度にも及ぶ
上方ユニットの開放角度でも充分強力に作用するもので
あシさらに開放した上方ユニットを出来得ればその停止
位置に支え得る程強力なものであることが望ましくある
。In particular, the torsion spring used here is strong enough to operate even at an opening angle of 45 degrees for the upper unit, and is also strong enough to support the opened upper unit in its stopping position if possible. It is desirable that the
しかしながら捩りばねを４５度にも及ぶ作用角肛でなお
上方ユニットを支え得る強力な反撥力をもつ容量の本の
とするとその蓄勢時には過大な付勢力をもつ結果となり
それら各ユニットを閉止するために強固な係止部材を必
艮としま走閉止を解除したとき捩りばねの反撥力によっ
て上方ユニットが急激に開放され危険を序うことが懸念
される。However, if the torsion spring has a capacity that has a strong repulsive force that can support the upper unit even at an operating angle of 45 degrees, it will have an excessive biasing force when it is charged, and will close each unit. However, there is a concern that when the running lock is released, the upper unit may suddenly open due to the repulsive force of the torsion spring, creating a danger.
本発明は、上方ユニットの開放作動の初期がら［ＱｉＣ
わたって、捩りばねによる付勢作用がはソ平均して作用
するようにし、それによって作動が円滑でかつ危険性の
ない電子写真記録装置の開閉機構を提供することを目的
としたものである。The present invention is characterized in that the initial stage of the opening operation of the upper unit [QiC
The object of the present invention is to provide an opening/closing mechanism for an electrophotographic recording device in which the biasing action of the torsion spring acts evenly over the entire range, thereby allowing smooth operation and no danger.
Ｃ問題点を解決するための手段〕
本発明は、従来の開閉機構における捩りばねの取付位置
が上下各ユニットの回動中心と一致し、その結果捩りば
ねの作用角度がユニットの回動角度に相当する迄拡大さ
れているためにその蓄勢時と開放時とで大きな付勢力の
差を生じていることに着目してなされたもので、それは
、２つのユニットに開閉可能な筺体において、該２つの
ユニー／トの上方ユニットを開放させるためのスプリン
グの回転中心が、前記上方ユニットの回転中心から外れ
た位置に設けられたことを特徴とする電子写真記録装置
の開閉装置によって達成される。Means for Solving Problem C] In the present invention, the mounting position of the torsion spring in the conventional opening/closing mechanism coincides with the center of rotation of each upper and lower unit, and as a result, the operating angle of the torsion spring matches the rotation angle of the unit. This was done by focusing on the fact that there is a large difference in the biasing force between when it is charged and when it is released because it has been expanded to the same extent. This is achieved by an opening/closing device for an electrophotographic recording apparatus characterized in that the center of rotation of a spring for opening the upper unit of the two units is provided at a position offset from the center of rotation of the upper unit.
本発明による開閉機構の一実施例を第１図ないし第３図
に示す。An embodiment of the opening/closing mechanism according to the present invention is shown in FIGS. 1 to 3.
本実施例は２分割式複写機１０に適用した場合を示した
もので主として原稿台２１、露光々学系ηそれに感光体
ｎや現偉装置囚、クリーニング装置５等の画像形底プロ
セス部を収容する上方ユニット加と、主として給紙カセ
ット３１、それに記録紙の搬出・給紙の各ローラ３２
、３３と転写・分離の各電極調、３５の転写・搬送ブロ
ックと、定着装置３６を収容する下方ユニツ）３０とは
記録紙の搬送面を境として区分された上、蝶番装置切に
よって接続され前記上方ユニット加におけるドラムカー
トリッジの交換や下方ユニツ）３０における記録紙のジ
ャム処理の場合に、鎖錠装置（図示せず）を解除して前
記上方ユニット２をはソ４５度にまで開放出来るように
なっている。This embodiment shows a case where it is applied to a two-part copying machine 10, and mainly includes an original platen 21, an exposure system η, a photoconductor n, an image forming device 5, a cleaning device 5, etc. The upper unit for housing, mainly the paper feed cassette 31, and each roller 32 for carrying out and feeding the recording paper.
, 33, the transfer/separation electrodes, the transfer/transport block 35, and the lower unit (30) which accommodates the fixing device 36 are separated by the recording paper transport surface and connected by a hinge device. When replacing the drum cartridge in the upper unit 30 or clearing a recording paper jam in the lower unit 30, the locking device (not shown) can be released and the upper unit 2 can be opened up to 45 degrees. It has become.
前記下方ユニット３０の蝶番装置栃の右側方には開放方
向に作用するよう蓄勢された捩シばね刃が取付られでい
て第２図に示す如くその一方の端部５Ｑａは、前記下方
ユニット（９）に設けた穴ｒに掛止され、他方の端部５
０ｂは、その折曲げ部に差込んだ転勤可能のコロωを介
して前記上方ユニツ）２０に設けたカムあに接している
。A torsion spring blade biased to act in the opening direction is attached to the right side of the hinge device of the lower unit 30, and as shown in FIG. 2, one end 5Qa of the blade is attached to the lower unit ( 9), and the other end 5
0b is in contact with a cam provided on the upper unit 20 via a transferable roller ω inserted into the bent portion.
前記カム％は図示の如く左下りの曲面もしくは直線面を
成していて、後述する如く前記上方二ニッ）２０の開放
に伴って転動する前記コロωを常に当接させるに足りる
長さを有するものであり、一方また、前記捩シばね印は
、前記上方ユニット加が＠２図（ａｌに示す如く前記下
方ユニツ）３０に対して閉鎖されている場合には、蓄勢
されていて充分な弾性を蔵した状態とされている。The cam % has a curved surface or a straight surface downward to the left as shown in the figure, and has a length sufficient to constantly contact the roller ω that rolls with the opening of the upper two knits 20 as described later. On the other hand, the torsion spring mark is sufficiently energized when the upper unit is closed against the lower unit 30 as shown in Figure 2 (al). It is said to be in a state of high elasticity.
鎖錠装置を解除して前記上方ユニツ）２０を第２図（ｂ
）に示す如く前記蝶番装置４０によシ時計方向に手動で
開放するに当っては、前記捩りばね団の付勢によって蓄
勢された弾力が回転モーメントとして作用する結果、上
方ユニツ）２０の重置は軽減されてその開放動作は頗る
容易に始められる。The locking device is released and the upper unit) 20 is
) When the hinge device 40 is manually opened in the clockwise direction, the elasticity stored by the biasing of the torsion spring group acts as a rotational moment, and as a result, the weight of the upper unit 20 is The positioning is reduced and the opening operation is much easier to initiate.
ついで前記上方ユニツ）２０の開放が進められると前記
コロωは前記捩りばね関の支点が前記蝶番装置切より遠
い位置に設けられている関係から、前記カムが上を左方
に転動し、第２図（ｂ）に示す如く前記上方ユエッ）２
０がその開放を終えて停止位置に係止された状態では該
カムあの左端部に位置して当接する状態となっている。Then, when the upper unit 20 is opened, the cam rolls to the left on the upper part of the roller ω because the fulcrum of the torsion spring lock is located at a position farther from the hinge device. As shown in FIG. 2(b), the upper part) 2
When the cam 0 has finished opening and is locked at the stop position, the cam is located at the left end of the cam and comes into contact with it.
すなわち前述した如くカム％は左下りの曲面あるいは直
線面であることから前記捩りばね団の作用角度Ａ／Ｂ／
は前記上方ユニット２０の開放角度ＡＢより小さい角度
ですむことになる。That is, as mentioned above, since the cam % is a curved surface downward to the left or a straight surface, the operating angle of the torsion spring group A/B/
is smaller than the opening angle AB of the upper unit 20.
その結果、第３図の特性図に示す如く前記捩りばね（資
）の作用角度に対応して前記上方ユニツ）２０が受ける
回転モーメントは、従来の如く捩シばねの取付が前記蝶
番装置４０に一致している場合にはＩから■に相当する
地点まで大きく低減するに反し本発明の場合にはＩから
■に低減するに止ま）前記上方ユニッ）２０の開放停止
位置においてもなお充分な付勢力を有していること＼な
る。As a result, as shown in the characteristic diagram of FIG. 3, the rotational moment that the upper unit 20 receives in response to the operating angle of the torsion spring (supplement) is reduced by the rotational moment that the torsion spring is attached to the hinge device 40 as in the conventional case. If they match, there will be a large reduction from I to a point corresponding to It means having power.
なお本発明の開閉機構を利用したうえさらに前記捩りば
ね（資）のばね特性を選択すれば、その付勢力によって
鎖錠装置の解除と共に自動的に上方ユニラ）２０を開放
させなおかつその停止位置に付勢して保持すること本可
能である。If the opening/closing mechanism of the present invention is used and the spring characteristics of the torsion spring are selected, the biasing force will automatically open the upper unit 20 when the locking device is released and return it to its stop position. It is possible to press and hold it.
また上記の本実施例では、捩シばね関の支点を下方ユニ
ット（資）に設は九が、上方ユニツ）２０に設はコロの
転動するカム面を下方ユニット３０に設けることも可能
であって、本発明に含まれる。In addition, in the present embodiment described above, the fulcrum of the torsion spring check is set in the lower unit (9), but it is also possible to set the cam surface on which the roller rolls in the lower unit 30. Therefore, it is included in the present invention.
本発明は、上下２つのユニットから底る筺体の上方ユニ
ット開放に当ってその労力を著しく軽減すると共に併用
する補助スズリングの疲労を低減しもって耐久性の高い
開閉機構を提供するところとなシ、その結果操作が容易
で安定し、かつ堅牢な２分割式複写機が実現されること
＼なった。The present invention provides a highly durable opening/closing mechanism that significantly reduces the labor required to open the upper unit of the bottom casing from the upper and lower units, and also reduces the fatigue of the auxiliary ring used in combination. As a result, a two-part copying machine that is easy to operate, stable, and robust was realized.
第１図は本発明の開閉装置を備えた２分割式複写機の槽
底図、ＷＩＺ図はその要部図。第３図は前記装置による
上方ユニットのモーメント特性図。
１０・・・２分割式複写機 加・・・上方ユニットが・
・・カム 加・・・下方ユニット旬・・・蝶
番装置 園・・・捩りはね６０−Ｈ＋コロ
出願人 小西六写真工業株式会社
第２図
友・月１°ね年旧内度FIG. 1 is a bottom view of a two-part copying machine equipped with the opening/closing device of the present invention, and the WIZ diagram is a view of its main parts. FIG. 3 is a moment characteristic diagram of the upper unit by the above device. 10...Two-part copier Add...Upper unit...
...Cam addition...Lower unit...Hinge device Garden...Torsion spring 60-H+Koro Applicant Konishiroku Photo Industry Co., Ltd. Figure 2 Friends/Month 1° year old degree
Claims (1)
ニットの上方ユニットを開放させるためのスプリングの
回転中心が、前記上方ユニットの回転中心から外れた位
置に設けられたことを特徴とする電子写真記録装置の開
閉装置。An electrophotographic record characterized in that, in a housing that can be opened and closed into two units, the center of rotation of a spring for opening the upper unit of the two units is provided at a position offset from the center of rotation of the upper unit. Equipment opening/closing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60033563A JPS61192919A (en) | 1985-02-20 | 1985-02-20 | Switchgear for electrophotography recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60033563A JPS61192919A (en) | 1985-02-20 | 1985-02-20 | Switchgear for electrophotography recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61192919A true JPS61192919A (en) | 1986-08-27 |
Family
ID=12390014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60033563A Pending JPS61192919A (en) | 1985-02-20 | 1985-02-20 | Switchgear for electrophotography recorder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61192919A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0232957A (en) * | 1988-07-19 | 1990-02-02 | Canon Inc | Opening/closing device for lid of container, etc. |
| JP2019117772A (en) * | 2017-12-27 | 2019-07-18 | 株式会社エンプラス | Opening and closing mechanism of opening and closing body |
| JP2019120274A (en) * | 2017-12-28 | 2019-07-22 | 株式会社ナチュラレーザ・ワン | Opening/closing device, and information terminal device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5032697U (en) * | 1973-07-19 | 1975-04-09 | ||
| JPS5859463A (en) * | 1982-08-19 | 1983-04-08 | Minolta Camera Co Ltd | Electrophotographic copying machine |
-
1985
- 1985-02-20 JP JP60033563A patent/JPS61192919A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5032697U (en) * | 1973-07-19 | 1975-04-09 | ||
| JPS5859463A (en) * | 1982-08-19 | 1983-04-08 | Minolta Camera Co Ltd | Electrophotographic copying machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0232957A (en) * | 1988-07-19 | 1990-02-02 | Canon Inc | Opening/closing device for lid of container, etc. |
| JP2019117772A (en) * | 2017-12-27 | 2019-07-18 | 株式会社エンプラス | Opening and closing mechanism of opening and closing body |
| JP2019120274A (en) * | 2017-12-28 | 2019-07-22 | 株式会社ナチュラレーザ・ワン | Opening/closing device, and information terminal device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4842666B2 (en) | Image processing apparatus and composite apparatus | |
| US8744305B2 (en) | Image forming apparatus with latch for openable cover | |
| US6615019B2 (en) | Automatic original feeding apparatus and image forming apparatus provided with the same | |
| JPS63146086A (en) | Recorder | |
| JP2769950B2 (en) | Frame locking mechanism and image forming apparatus using the frame locking mechanism | |
| JPS61192919A (en) | Switchgear for electrophotography recorder | |
| JPS5913247A (en) | Image forming device | |
| JP3578012B2 (en) | Image forming device | |
| JP3280735B2 (en) | Image forming device | |
| JP2001100550A5 (en) | ||
| JPH01110455A (en) | Picture image forming device | |
| US20040009010A1 (en) | User-replaceable fuser cartridge for electrophotographic printing systems | |
| JP2556382Y2 (en) | Airframe lock mechanism | |
| JP3247012B2 (en) | Image forming device | |
| JPH07230197A (en) | Image forming device | |
| JPH0326859Y2 (en) | ||
| JPH04166977A (en) | Holding device for waste toner bottle | |
| JP2005297278A (en) | Hinge mechanism and image forming apparatus | |
| JP2000259061A (en) | Image forming device | |
| JP3278517B2 (en) | Image forming device | |
| JP3368104B2 (en) | Sheet tray and image forming apparatus | |
| JP2012238018A (en) | Image forming apparatus | |
| CN101373369A (en) | Imaging processing box | |
| JPH0936565A (en) | Electronic/electric device | |
| JP2619158B2 (en) | Development process unit support device |