JPH0241637Y2 - - Google Patents

Info

Publication number
JPH0241637Y2
JPH0241637Y2 JP4657884U JP4657884U JPH0241637Y2 JP H0241637 Y2 JPH0241637 Y2 JP H0241637Y2 JP 4657884 U JP4657884 U JP 4657884U JP 4657884 U JP4657884 U JP 4657884U JP H0241637 Y2 JPH0241637 Y2 JP H0241637Y2
Authority
JP
Japan
Prior art keywords
fulcrum
support shaft
document table
operation button
arm
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.)
Expired
Application number
JP4657884U
Other languages
Japanese (ja)
Other versions
JPS60159424U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP4657884U priority Critical patent/JPS60159424U/en
Publication of JPS60159424U publication Critical patent/JPS60159424U/en
Application granted granted Critical
Publication of JPH0241637Y2 publication Critical patent/JPH0241637Y2/ja
Granted legal-status Critical Current

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  • Optical Systems Of Projection Type Copiers (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)

Description

【考案の詳細な説明】 技術分野 この考案は、静電写真装置のロツク装置に関す
る。
[Detailed Description of the Invention] Technical Field This invention relates to a locking device for an electrostatographic apparatus.

従来技術 従来、原稿台をスライド自在に保持する上部筐
体の一端を下部筐体の一端に回動自在に取付け、
上部筐体と下部筐体との他端とを係止部にロツク
レバーを係合させることにより連結し、ジヤム処
理等に際して解除機構を操作しロツクレバーと係
止部との係合を外し上部筐体を上方へ開放するよ
うにした静電写真装置が存する。しかし、原稿台
が上部筐体の回動遊端側から突出する状態でも上
部筐体が上方へ開放するので、上部筐体が原稿台
の重さに基づくモーメントにより下方へ下ること
があり、これを解消するため上部筐体を上方へ付
勢する力を大きくすると、上部筐体を下方へ閉じ
るときに原稿台に下方への荷重をかけてガラス製
の原稿台を破損するおそれがある。原稿台が正規
の静止位置にないときにロツクレバーの動きを阻
止するストツパーを設けたものも存するが、無理
に作動させるとストツパが破損するおそれがあ
る。
Conventional technology Conventionally, one end of an upper casing that slidably holds a document table is rotatably attached to one end of a lower casing.
The other ends of the upper casing and the lower casing are connected by engaging the lock lever with the locking part, and when removing a jam, etc., the release mechanism is operated to disengage the lock lever and the locking part, and the upper housing is removed. There is an electrostatic photographic apparatus in which the opening is opened upward. However, since the upper case opens upward even when the document table protrudes from the free rotation end of the upper case, the upper case may fall downward due to the moment due to the weight of the document table. If the force that urges the upper case upward is increased in order to eliminate this problem, there is a risk that a downward load will be applied to the document table and the glass document table will be damaged when the upper case is closed downward. Some devices are equipped with a stopper that prevents the lock lever from moving when the document table is not in its normal resting position, but there is a risk that the stopper will be damaged if forced to operate.

目 的 この考案はこのような点に鑑みなされたもの
で、原稿台が正規の位置で静止しているときにの
み上部筐体の開放動作を許容しうる静電写真装置
のロツク装置をうることを目的とする。
Purpose This invention has been developed in view of the above points, and is to provide a locking device for an electrostatic photographic device that allows the upper housing to be opened only when the original platen is stationary in its normal position. With the goal.

構 成 この考案の一実施例を図面に基いて説明する。
下部筐体1と上部筐体2とが一端両側においてヒ
ンジ3により連結されている。上部筐体2は図示
しないスプリングにより上方へ付勢されている。
上部筐体2には感光ベルト4を有する感光ユニツ
ト5と帯電部6と結像素子7と光源8とが取付け
られ、下部筐体1には現像ユニツト9と転写紙1
0を送り出す給紙ローラ11及び運搬ローラ12
とレジストローラ13と転写部14と搬送ローラ
15と定着ユニツト16と排出トレイ17とが取
付けられている。
Configuration An embodiment of this invention will be explained based on the drawings.
A lower casing 1 and an upper casing 2 are connected at one end and both sides by a hinge 3. The upper housing 2 is urged upward by a spring (not shown).
A photosensitive unit 5 having a photosensitive belt 4, a charging section 6, an imaging element 7, and a light source 8 are attached to the upper housing 2, and a developing unit 9 and a transfer paper 1 are attached to the lower housing 1.
Paper feed roller 11 and transport roller 12 that send out 0
, a registration roller 13 , a transfer section 14 , a conveyance roller 15 , a fixing unit 16 , and a discharge tray 17 are attached.

ついで、上部筐体2の回動遊端側には支軸18
が回動自在に取付けられ、この支軸18の両端に
はロツクレバー19,20がねじ止めされてい
る。一方のロツクレバー19はトーシヨンスプリ
ング21により付勢されている。また、ロツクレ
バー19,20の下端に係合する係止部である係
止孔22が下部筐体の両側に形成されている。
Next, a support shaft 18 is provided on the free rotation end side of the upper housing 2.
is rotatably mounted, and lock levers 19 and 20 are screwed to both ends of this support shaft 18. One lock lever 19 is biased by a torsion spring 21. Further, locking holes 22, which are locking portions that engage with the lower ends of the lock levers 19, 20, are formed on both sides of the lower housing.

さらに、上部筐体2にはトーシヨンスプリング
21の力に抗してロツクレバー19,20を係止
孔22から退避させる解除機構23が取付けられ
ている。この解除機構23は支軸18にねじ止め
されたアーム24と、このアーム24の上部に立
設したピン25に係合する解除体であるプレート
26と、操作釦27とよりなる。操作釦27は上
部筐体2の回動遊端側の上面中央に形成されたス
リツト28にスライド自在に挿入される突片29
を有し、この突片29に抜け止めピン30を貫通
することにより操作釦27の上方への浮きが阻止
されている。この操作釦27が位置する部分は押
圧荷重が上部筐体2の両側に均等に作用する位置
であり、この位置は開いた上部筐体2を押し下げ
る場合の押圧部2aに定められている。さらに、
支軸18には支点台31の基部が回動自在に保持
されている。この支点台31にはプレート26の
一端を回動自在に保持する支点軸32が立設され
ている。この支点軸32と前記ピン25とにはプ
レート26の浮きを阻止するフランジ33が形成
されている。そして、上部筐体2には支点台31
の端部から上方へ屈曲する検出部である検出片3
5を突出させる窓36が形成されている。さら
に、上部筐体2の上面には原稿台37がスライド
自在に保持されている。原稿台37はその先端縁
38が操作釦27により略ヒンジ3側に寄り検出
片35を押えるように静止位置が定められてい
る。
Further, a release mechanism 23 is attached to the upper housing 2 for retracting the lock levers 19 and 20 from the locking hole 22 against the force of the torsion spring 21. The release mechanism 23 includes an arm 24 screwed to the support shaft 18, a plate 26 serving as a release body that engages with a pin 25 erected on the upper part of the arm 24, and an operation button 27. The operation button 27 has a protrusion 29 that is slidably inserted into a slit 28 formed in the center of the upper surface of the free rotation end of the upper housing 2.
A retaining pin 30 passes through this protrusion 29 to prevent the operation button 27 from floating upward. The portion where this operation button 27 is located is a position where a pressing load acts equally on both sides of the upper housing 2, and this position is determined as the pressing portion 2a when pressing down the open upper housing 2. moreover,
A base of a fulcrum stand 31 is rotatably held on the support shaft 18 . A fulcrum shaft 32 that rotatably holds one end of the plate 26 is erected on the fulcrum stand 31 . A flange 33 is formed on the fulcrum shaft 32 and the pin 25 to prevent the plate 26 from floating. A fulcrum stand 31 is provided in the upper housing 2.
The detection piece 3 is a detection part that bends upward from the end of the
A window 36 is formed through which the window 5 protrudes. Further, a document table 37 is slidably held on the upper surface of the upper housing 2. The rest position of the document table 37 is determined so that the leading edge 38 of the document table 37 is moved substantially toward the hinge 3 by the operation button 27 and presses the detection piece 35 .

このような構成において、給紙ローラ11から
定着ユニツト16に至る紙通路においてジヤムが
発生したような場合にヒンジ3を中心に上部筐体
2を上方に開く。このときは、第1図、第4図に
示すように原稿台37を正規の位置に静止させた
状態で操作釦27を手前(右方)へスライドさせ
る。原稿台37が正規位置に静止している状態
は、検出片35と原稿台37との当接により支点
台31の時計方向への動きが規制され、操作釦2
7の操作力を受けるために支点台31の反時計方
向への動きも規制され、このため支点軸32の位
置は動かない。したがつて、操作釦27を右方へ
動かすと、第3図に仮想線をもつて示すように、
プレート26は支点軸32を中心に回動しピン2
5を押圧し、これにより第6図に示すようにアー
ム24と支軸18とロツクレバー19,20とは
トーシヨンスプリング21の力に抗して回動す
る。この瞬間にロツクレバー19,20と係止孔
22との係合が外れ、ヒンジ3を中心として上部
筐体2が上方へ回動する。
In this configuration, when a jam occurs in the paper path from the paper feed roller 11 to the fixing unit 16, the upper housing 2 is opened upward about the hinge 3. At this time, as shown in FIGS. 1 and 4, the operation button 27 is slid toward the front (to the right) while the document table 37 is kept stationary at the normal position. When the document table 37 is stationary at the normal position, the clockwise movement of the fulcrum table 31 is restricted by the contact between the detection piece 35 and the document table 37, and the operation button 2 is pressed.
7, the movement of the fulcrum stand 31 in the counterclockwise direction is also restricted, and therefore the position of the fulcrum shaft 32 does not move. Therefore, when the operation button 27 is moved to the right, as shown by the imaginary line in FIG.
The plate 26 rotates around the fulcrum shaft 32 and the pin 2
5, thereby causing the arm 24, the support shaft 18, and the lock levers 19, 20 to rotate against the force of the torsion spring 21, as shown in FIG. At this moment, the lock levers 19 and 20 are disengaged from the locking hole 22, and the upper housing 2 rotates upward about the hinge 3.

原稿台37が前方へ移動しているときは操作釦
27を覆つているので上部筐体2を開く操作は行
なえない。また、原稿台37が第7図に示すよう
に後方に偏位している状態では、支点台31は時
計方向への動きがフリーとなり操作釦27の力を
受けると時計方向へ回動し、第8図に示すよう支
点軸32の位置が偏位するだけでトーシヨンスプ
リング21の力に抗してアーム24を回動させる
ことはできず、したがつて、ロツクレバー19,
20と係止孔22との係合を外すことができな
い。
When the document table 37 is moving forward, the operation button 27 is covered, so the operation to open the upper housing 2 cannot be performed. In addition, when the document table 37 is deviated rearward as shown in FIG. 7, the fulcrum table 31 is free to move clockwise, and when it receives the force of the operation button 27, it rotates clockwise. As shown in FIG. 8, the arm 24 cannot be rotated against the force of the torsion spring 21 simply by shifting the position of the fulcrum shaft 32. Therefore, the lock lever 19,
20 and the locking hole 22 cannot be disengaged.

したがつて、上部筐体2が上方へ開く状態は原
稿台37が正規位置に静止しているときに限られ
る。これにより、原稿台37が後方にスライドし
たまま上部筐体2を開き原稿台37が排出トレイ
17に干渉して破損することがなく、また、原稿
台37が前方にスライドした状態で上部筐体2を
開く状態がないので、原稿台37が下方への圧力
を受けて破損することを防止することができる。
さらに、操作釦27を操作して開放した上部筐体
2を閉じるときは、操作釦27の部分を下方へ押
圧する動作が自然に行なわれる。したがつて、操
作釦27が上部筐体2の回動遊端側の上面中央の
の押圧部2aの近傍に位置しているため上部筐体
2が偏荷重を受けてゆがむことがなく、左右のロ
ツクレバー19,20を係止孔22に確実に係合
させることができる。上部筐体2を開放する場合
でも、操作釦27を操作した手が上部筐体2の上
面を押えることになり、したがつて、ロツクレバ
ー19と係止孔22との摩擦抵抗を小さくして両
者を小さな操作力で簡単に外すことができるとと
もに、上部筐体2が勢いよく開く危険をも防止す
ることができる。また、プレート26は操作釦2
7の力を受けたときに支点台31の支点軸32を
中心に回動しあるいはアーム24のピン25を中
心に回動し、固定状態に維持されることがなく、
したがつて、無理な力を受けて破損するようなこ
とを回避することができる。なお、原稿台37
は、上部筐体2が上方へ開いたときに傾斜するが
図示しないロツク装置によりスライド動作がロツ
クされ、このロツク状態は上部筐体2を下方へ閉
じたときに解除されるものである。
Therefore, the state in which the upper housing 2 opens upward is limited to when the document table 37 is stationary at the normal position. This prevents the document table 37 from interfering with and damaging the output tray 17 when the upper case 2 is opened while the document table 37 is sliding backward, and also prevents the document table 37 from interfering with the output tray 17 and being damaged. 2 is not opened, it is possible to prevent the document table 37 from being damaged by downward pressure.
Furthermore, when closing the upper housing 2 that has been opened by operating the operation button 27, the operation of pressing the operation button 27 downward is naturally performed. Therefore, since the operation button 27 is located near the pressing part 2a at the center of the upper surface of the free rotation end of the upper housing 2, the upper housing 2 is not distorted due to an uneven load, and can be rotated from side to side. The lock levers 19 and 20 can be reliably engaged with the locking hole 22. Even when opening the upper housing 2, the hand that operates the operation button 27 will press down on the top surface of the upper housing 2. Therefore, the frictional resistance between the lock lever 19 and the locking hole 22 will be reduced and both can be easily removed with a small operating force, and the danger of the upper housing 2 opening too quickly can be prevented. In addition, the plate 26 is connected to the operation button 2.
7, it rotates around the fulcrum shaft 32 of the fulcrum stand 31 or around the pin 25 of the arm 24, and is not maintained in a fixed state.
Therefore, damage caused by excessive force can be avoided. In addition, the manuscript table 37
is tilted when the upper housing 2 is opened upward, but the sliding operation is locked by a locking device (not shown), and this locked state is released when the upper housing 2 is closed downward.

効 果 この考案は上述のように構成したので、原稿台
が正規の位置に静止しているときにのみ操作釦の
動作に解除体を連動させ支点台を中心に回動させ
てロツクレバーと係止部との係合を外すことがで
き、原稿台が操作釦を覆う一方にスライドしてい
るときには操作釦の操作を妨げてロツクレバーと
係止部との係合が外れることを防止することがで
き、原稿台が他方へスライドしているときは支点
台をフリーにして解除体の動作がロツクレバーに
伝わることを防止することができ、したがつて、
原稿台が正規の位置に静止しているときにのみ上
部筐体の開閉を許容し、原稿台の破損を防止する
ことができ、さらに、解除体は固定状態がないの
で無理な力を受けて破損することがない等の効果
を有するものである。
Effects Since this device is configured as described above, the release body is linked to the operation of the operation button only when the document table is stationary at the normal position, rotates around the fulcrum base, and locks with the lock lever. When the document table slides in one direction to cover the operation button, it can prevent the operation button from being operated and prevent the lock lever from disengaging from the locking section. When the document table is sliding toward the other side, the fulcrum table can be made free to prevent the movement of the release body from being transmitted to the lock lever.
The upper case can be opened and closed only when the document table is stationary in its normal position, which prevents damage to the document table.Furthermore, since the release body is not fixed, it cannot be exposed to excessive force. This has the advantage of not being damaged.

【図面の簡単な説明】[Brief explanation of the drawing]

図面はこの考案の一実施例を示すもので、第1
図は全体構成の概略を縮小して示す縦断側面図、
第2図はロツクレバーと解除機構と支点台との関
係を示す斜視図、第3図は一部を断面にしてロツ
クレバーと解除機構と支点台との関係を示す平面
図、第4図は第3図におけるA−A線部の縦断側
面図、第5図は第3図におけるB−B線部の縦断
側面図、第6図はロツクレバーの動作を示す縦断
側面図、第7図は支点台の偏位動作を示す縦断側
面図、第8図は一部を断面にして支点台の偏位動
作を示す平面図である。 1……下部筐体、2……上部筐体、19,20
……ロツクレバー、22……係止孔(係止部)、
26……プレート(解除体)、27……操作釦、
31……支点台、35……検出片(検出部)、3
7……原稿台。
The drawing shows one embodiment of this invention.
The figure is a longitudinal side view showing a reduced outline of the overall configuration.
Fig. 2 is a perspective view showing the relationship between the lock lever, release mechanism, and fulcrum; Fig. 3 is a partially sectional plan view showing the relationship between the lock lever, release mechanism, and fulcrum; Fig. 4 is a perspective view showing the relationship between the lock lever, release mechanism, and fulcrum; Figure 5 is a vertical side view of the line A-A in the figure, Figure 5 is a side view of the line B-B in Figure 3, Figure 6 is a side view of the lock lever, and Figure 7 is a side view of the fulcrum. FIG. 8 is a longitudinal sectional side view showing the deflection operation, and FIG. 8 is a partially sectional plan view showing the deflection operation of the fulcrum. 1...Lower casing, 2...Upper casing, 19, 20
... Lock lever, 22 ... Locking hole (locking part),
26...Plate (release body), 27...Operation button,
31... Fulcrum stand, 35... Detection piece (detection section), 3
7...Manuscript stand.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 上面に原稿台がスライド自在に保持された上部
筐体の一端を下部筐体の一端に上下回動自在に取
付け、前記下部筐体の他端に左右一対の係止部を
形成するとともに前記上部筐体の他端に前記係止
部に係脱する一対のロツクレバーが固定された支
軸を係合方向に付勢して回動自在に取付け、この
支軸に正規位置に位置する前記原稿台に干渉して
固定状態に維持される支点台を回動自在に且つ前
記支軸に遊嵌状態に取付け、前記支軸上の前記支
点台と離間した位置にアームを固定して設け、こ
のアームに固定されたピンと前記支点台に固定さ
れた支点軸とにそれぞれ遊動状態に解除体を連結
し、前記アームと前記支点台との間に位置し前記
解除体に当接可能な突片を有すると共に前記上部
筐体の他端に且つ上部筐体から露出して操作釦を
スライド自在に設け、前記原稿台が正規位置にあ
る時、操作釦をスライドさせることにより前記支
点軸を中心として前記解除体が回動すると共に、
前記アームが移動し、前記支軸の回動によりロツ
クレバーを係止解除し、又、前記原稿台が正規位
置にない時、前記支点台及び前記支点軸が操作釦
より離れる方向且つ前記操作釦のスライド方向に
移動し、前記解除体に前記突片が当接しないよう
構成されたことを特徴とする静電写真装置のロツ
ク装置。
One end of the upper casing, on which a document table is slidably held, is attached to one end of the lower casing so as to be movable up and down, and a pair of left and right locking parts are formed at the other end of the lower casing. A support shaft to which a pair of lock levers that engage and disengage from the locking portions are fixed to the other end of the casing is biased in the engagement direction and is rotatably attached, and the document table is positioned at a normal position on this support shaft. A fulcrum stand that is maintained in a fixed state by interfering with the support shaft is rotatably attached to the support shaft in a loosely fitted state, and an arm is fixedly provided on the support shaft at a position apart from the fulcrum stand, and this arm A release body is connected in a floating state to a pin fixed to the arm and a fulcrum shaft fixed to the fulcrum base, respectively, and has a projecting piece located between the arm and the fulcrum base and capable of abutting on the release body. At the same time, an operation button is slidably provided at the other end of the upper housing and exposed from the upper housing, and when the document table is in the normal position, sliding the operation button causes the release about the fulcrum shaft. As the body rotates,
When the arm moves and the rotation of the support shaft releases the lock lever, and the document table is not in the normal position, the support stand and the support shaft move in the direction away from the operation button and the rotation of the operation button. A locking device for an electrostatic photographic apparatus, characterized in that the locking device is configured to move in a sliding direction so that the protruding piece does not come into contact with the releasing body.
JP4657884U 1984-03-30 1984-03-30 Electrostatographic equipment locking device Granted JPS60159424U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4657884U JPS60159424U (en) 1984-03-30 1984-03-30 Electrostatographic equipment locking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4657884U JPS60159424U (en) 1984-03-30 1984-03-30 Electrostatographic equipment locking device

Publications (2)

Publication Number Publication Date
JPS60159424U JPS60159424U (en) 1985-10-23
JPH0241637Y2 true JPH0241637Y2 (en) 1990-11-06

Family

ID=30561106

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4657884U Granted JPS60159424U (en) 1984-03-30 1984-03-30 Electrostatographic equipment locking device

Country Status (1)

Country Link
JP (1) JPS60159424U (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2583771B2 (en) * 1987-11-06 1997-02-19 キヤノン株式会社 Image recording device

Also Published As

Publication number Publication date
JPS60159424U (en) 1985-10-23

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