JPH0542981Y2 - - Google Patents
Info
- Publication number
- JPH0542981Y2 JPH0542981Y2 JP1987134194U JP13419487U JPH0542981Y2 JP H0542981 Y2 JPH0542981 Y2 JP H0542981Y2 JP 1987134194 U JP1987134194 U JP 1987134194U JP 13419487 U JP13419487 U JP 13419487U JP H0542981 Y2 JPH0542981 Y2 JP H0542981Y2
- Authority
- JP
- Japan
- Prior art keywords
- paper
- cassette
- paper feed
- loading
- main body
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 108091008695 photoreceptors Proteins 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、静電写真複写機やフアクシミリなど
の画像形成装置のカセツト装填部に挿抜自在に装
備される給紙カセツトに関し、特に大型の画像形
成装置を装備対象にする上で好適な給紙カセツト
に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a paper feed cassette that is removably inserted into the cassette loading section of an image forming apparatus such as an electrostatographic copying machine or a facsimile machine, and is particularly applicable to large-sized images. The present invention relates to a paper feed cassette suitable for equipping a forming apparatus.
例えば、業務用の静電写真複写機においては、
給紙部や作像部、転写部など各構成部分の大きさ
やこれらの配置などは、概ね同等であつて、複写
対象となる用紙サイズの如何にかかわらず、複写
機本体そのものの大きさは殆どかわらないが、給
紙カセツトが、複写機本体からどれ程突出してい
るかによつて複写機の大きさが左右される。
For example, in a commercial electrostatographic copying machine,
The size and arrangement of each component, such as the paper feed section, image forming section, and transfer section, are generally the same, and regardless of the paper size to be copied, the size of the copier itself is almost the same. However, the size of the copying machine is influenced by how far the paper feed cassette protrudes from the main body of the copying machine.
複写対象の用紙が例えばA3サイズ以下であれ
ば、複写機そのものの大きさは殆ど同じである
が、用紙のサイズがA2，A1，A0と大きくなるほ
ど複写機本体からの給紙カセツトの張り出し量が
大きくなる。従つて、複写機本体そのものはコン
パクトであつても、実質的に複写機全体が大きく
なつてしまう。 For example, if the paper to be copied is A3 size or smaller, the size of the copying machine itself is almost the same, but as the paper size increases, such as A2 , A1 , and A0 , the paper feed cassette from the copying machine increases. The amount of overhang increases. Therefore, even if the copying machine itself is compact, the entire copying machine becomes substantially large.
このような実情から、給紙カセツトを紙乗載面
に直交する方向に屈折可能に構成する技術が特開
昭50−98847号公報で提案されている。これは、
給紙カセツトを屈折させて装置本体のカセツト装
填部に装填させることで、装置本体からの給紙カ
セツトの張り出し量を少なくすることができるよ
うにしたもので、用紙のサイズが大きい場合で
も、複写機全体をコンパクトにすることできる。
その上、該給紙カセツトの屈折に伴つて乗載板上
の用紙が捌かれた状態になることから、用紙の重
送防止が効果的に達成される利点もある。 Under these circumstances, Japanese Patent Laid-Open No. 50-98847 proposes a technique in which the paper feed cassette is configured to be bendable in a direction perpendicular to the paper loading surface. this is,
By bending the paper cassette and loading it into the cassette loading section of the main body of the machine, the amount of protrusion of the paper cassette from the main body of the machine can be reduced, making it possible to copy even when the paper size is large. The entire machine can be made compact.
Furthermore, since the sheets on the loading plate are separated as the sheet feeding cassette bends, there is also the advantage that double feeding of sheets can be effectively prevented.
しかし、上述の装置では、給紙カセツトをカセ
ツト装填部に装填する際には、その給紙カセツト
を装置外において予め屈折させてから、これを装
置本体の外部に設けたカセツト装填部に装填しな
ければならなかつた。また、カセツト装填部を複
写機本体の内部に設けた場合は、給紙カセツトの
屈折状態を保ちつつ装填操作をおこなう必要があ
り、何れの場合においても、給紙カセツトの装填
操作が煩瑣であるという問題があつた。
However, in the above-mentioned apparatus, when loading the paper cassette into the cassette loading section, the paper cassette is bent in advance outside the apparatus, and then it is loaded into the cassette loading section provided outside the main body of the apparatus. I had to. Furthermore, when the cassette loading section is provided inside the copying machine main body, it is necessary to perform the loading operation while maintaining the bent state of the paper cassette, and in either case, loading the paper cassette is cumbersome. There was a problem.
本考案は、このような実情に鑑みてなされ、装
填操作が容易でそれ自体のコンパクト化が可能な
給紙カセツトを提供することを目的としている。 The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a paper feed cassette that is easy to load and can be made compact.
上記の目的を達成するために本考案は、給紙方
向の長さが、画像形成装置本体の給紙方向長さよ
りも大である給紙カセツトであつて、その給紙カ
セツトの紙乗載板が、湾曲可能な薄板材よりな
り、かつ前記画像形成装置本体のカセツト装填部
への給紙カセツトの押し込み装填動作により、そ
のカセツト装填部に設けた湾曲強制部材によつ
て、前記紙乗載板が、その紙乗載面と直交する方
向に湾曲状に撓み変形させられてその画像形成装
置本体内に収納されることを特徴としている。
In order to achieve the above object, the present invention provides a paper feed cassette whose length in the paper feed direction is larger than the length in the paper feed direction of the main body of an image forming apparatus, and a paper loading plate of the paper feed cassette. is made of a bendable thin plate material, and when the paper feed cassette is pushed and loaded into the cassette loading section of the image forming apparatus main body, the paper loading board is is characterized in that it is curved and deformed in a direction perpendicular to the paper loading surface and is housed within the main body of the image forming apparatus.
給紙カセツトを画像形成装置本体のカセツト装
填部へ押し込み装填すると、そのカセツト装填部
に設けた湾曲強制部材によつて紙乗載板が、その
紙乗載面と直交する方向に湾曲状に撓み変形させ
られ、画像形成装置本体の給紙方向長さよりも大
きい給紙カセツトがはみ出ることなくその画像形
成装置本体内に収納される。
When the paper feed cassette is pushed and loaded into the cassette loading section of the main body of the image forming apparatus, the paper loading plate is bent in a curved manner in a direction perpendicular to the paper loading surface by the curving forcing member provided in the cassette loading section. The deformed paper feed cassette, which is larger than the length of the image forming apparatus main body in the paper feeding direction, is housed within the image forming apparatus main body without protruding.
以下、本考案の実施例を図面に基づいて説明す
る。
Hereinafter, embodiments of the present invention will be described based on the drawings.
第１図は画像形成装置の一例としての複写機を
示し、複写機本体２の上部には原稿の自動給紙装
置１が設けられ、その複写機本体２の内部には感
光体３を横架するとともに、その感光体３のまわ
りに帯電装置４、現像装置５、転写装置６、用紙
分離装置７、クリーニング装置８を、その感光体
３の回転方向に配置し、かつその感光体３の上方
の空間に露光装置９を設けている。 FIG. 1 shows a copying machine as an example of an image forming apparatus, in which an automatic document feeder 1 is provided at the top of a copying machine main body 2, and a photoreceptor 3 is horizontally mounted inside the copying machine main body 2. At the same time, a charging device 4, a developing device 5, a transfer device 6, a paper separation device 7, and a cleaning device 8 are arranged around the photoconductor 3 in the rotational direction of the photoconductor 3, and above the photoconductor 3. An exposure device 9 is provided in this space.
一方、複写機本体２の下部空間には、カセツト
装填部１１を配設し、そのカセツト装填部１１の
給紙部１２から前記転写装置６にわたつて給紙搬
送装置１３を設けると共に、該給紙搬送装置１３
の経路途中に手差し給紙部１４を設けている。そ
のカセツト装填部１１の給紙部１２は、給紙ロー
ラ１９と上下一対の重送防止用ローラ２０，２１
から成る。 On the other hand, a cassette loading section 11 is provided in the lower space of the copying machine main body 2, and a paper feeding and conveying device 13 is provided extending from the paper feeding section 12 of the cassette loading section 11 to the transfer device 6. Paper conveyance device 13
A manual paper feeding section 14 is provided in the middle of the path. The paper feeding section 12 of the cassette loading section 11 includes a paper feeding roller 19 and a pair of upper and lower double feeding prevention rollers 20, 21.
Consists of.
そして、そのカセツト装填部１１の上方には、
転写・分離後の用紙を定着装置１５に搬送する排
紙搬送装置１６と、定着後の用紙を繰り出す排紙
ローラ対１７、及び、該繰り出された用紙を巻き
取りながら受ける排紙トレイ１８を設けている。 Above the cassette loading section 11,
A paper discharge conveying device 16 that conveys the paper after transfer and separation to the fixing device 15, a pair of paper discharge rollers 17 that feeds out the paper after fixing, and a paper discharge tray 18 that receives the fed paper while winding it up are provided. ing.
前記給紙カセツト１０は合成樹脂製もしくは金
属製のものであつて、給紙方向の長さが複写機本
体２の給紙方向長さより大であり、全体が紙乗載
面に直交する方向に湾曲状に撓み変形可能なバネ
性に富む軟質の薄板材よりなる乗載板（紙乗載
板）２２の一端側に把手２３を連設してなり、そ
の把手２３には前記給紙部１２における下部重送
防止用ローラ２１が設けられている。 The paper feed cassette 10 is made of synthetic resin or metal, and its length in the paper feed direction is larger than the length of the copying machine main body 2 in the paper feed direction, and the entire paper feed cassette 10 is made of synthetic resin or metal. A handle 23 is connected to one end side of a loading board (paper loading board) 22 made of a soft thin plate material with high springiness that can be bent and deformed into a curved shape. A lower double-feed prevention roller 21 is provided.
他方、前記カセツト装填部１１のカセツト挿入
側近くに、乗載板２２の巾方向両側を係入させて
該乗載板２２の浮き上がりを防止するガイド２４
を設けると共に、前記カセツト装填部１１の奥部
には、前記乗載板２２の前端部ａが当接するスト
ツパー２５を設けてあり、このガイド２４とスト
ツパー２５とで紙乗載板２２を湾曲させる湾曲強
制部材Ｂを構成している。 On the other hand, a guide 24 is provided near the cassette insertion side of the cassette loading section 11 to engage both sides of the mounting plate 22 in the width direction to prevent the mounting plate 22 from floating up.
In addition, a stopper 25 is provided at the back of the cassette loading section 11, with which the front end a of the loading plate 22 comes into contact, and the guide 24 and stopper 25 curve the paper loading plate 22. It constitutes a curving forcing member B.
上記の構成によれば、前記複写機本体２よりも
長く形成された給紙カセツト１０を前記カセツト
装填部１１に押し込み装填し、かつ、その前端部
ａが前記ストツパー２５に当接しても更に押し込
むことによつて、前記ガイド２４とストツパー２
５との間で乗載板部分２２ａが用紙ｂと共に上方
に湾曲状に撓み、その給紙方向の長さが縮小され
て、複写機本体２の内部に二点鎖線で示すように
収納される。このように、湾曲強制部材Ｂによつ
て複写機本体２よりも長い給紙カセツト１０をカ
セツト装填部１１内に装填でき、複写機全体のコ
ンパクト化を図れることは勿論のこと、用紙ｂを
捌いた状態が得られるのである。尚、該給紙カセ
ツト１０の装填状態を保持するためのロツク機構
（図外）が、該給紙カセツト１０の把手２３の近
傍と複写機本体２との間に設けられている。 According to the above structure, the paper feed cassette 10, which is longer than the copying machine main body 2, is pushed into the cassette loading section 11, and even if its front end a comes into contact with the stopper 25, the paper feed cassette 10 is pushed in further. Preferably, said guide 24 and stopper 2
5, the mounting plate portion 22a bends upward in a curved manner together with the paper b, its length in the paper feeding direction is reduced, and the mounting plate portion 22a is stored inside the copying machine main body 2 as shown by the two-dot chain line. . In this way, the paper feed cassette 10, which is longer than the copying machine main body 2, can be loaded into the cassette loading section 11 by the curving forcing member B, which not only makes the entire copying machine more compact, but also makes it possible to handle the paper b. This results in a state in which A lock mechanism (not shown) for maintaining the loaded state of the paper feed cassette 10 is provided between the vicinity of the handle 23 of the paper feed cassette 10 and the main body 2 of the copying machine.
第２図及び第３図に給紙カセツト１０の別実施
例を示す。第２図に示すものは、上記乗載板２２
が撓み変形した際の屈曲部に相当する部位の乗載
板部分ｃ……の厚さを局部的に薄く形成したもの
であり、第３図に示すものは、上記乗載板部分ｃ
……を上凸状に屈曲させたものであつて、それぞ
れ乗載板２２を上方に撓み変形しやすくするため
の切掛けを、乗載板部分ｃ……に形成した点に特
徴がある。 Another embodiment of the paper feed cassette 10 is shown in FIGS. 2 and 3. What is shown in FIG. 2 is the mounting plate 22.
The thickness of the mounting plate portion c corresponding to the bending portion when the board is bent is locally thinned, and what is shown in FIG. 3 is the mounting plate portion c.
. . . are bent in an upwardly convex shape, and are characterized in that cutouts are formed in the mounting plate portion c . . . to make it easier to bend and deform the mounting plate 22 upward.
次に、前記給紙カセツト１０の装填動作に伴つ
て乗載板２２を撓み変形させる構成の別実施例を
第４図乃至第６図に示す。 Next, another embodiment of the structure in which the mounting plate 22 is flexibly deformed in accordance with the loading operation of the paper feed cassette 10 is shown in FIGS. 4 to 6.
第４図に示すものは、前記複写機本体２のカセ
ツト装填部１１の奥部に、前記乗載板２２の巾方
向両側を係入させる上向き湾曲溝よりなるガイド
（湾曲強制部材）２６を設けたものであつて、前
記カセツト装填部１１への給紙カセツト１０の装
填動作に伴つて、前記乗載板２２の前部側の乗載
板部分２２ａを用紙ｂと共にガイド２６に沿わせ
て撓み変形させるようにして点に特徴がある。 In the copying machine shown in FIG. 4, a guide (curving forcing member) 26 is provided at the back of the cassette loading section 11 of the copying machine main body 2, which is an upwardly curved groove that engages both sides of the mounting plate 22 in the width direction. As the paper feed cassette 10 is loaded into the cassette loading section 11, the mounting plate portion 22a on the front side of the mounting plate 22 is bent along the guide 26 together with the paper b. The points are characterized by deformation.
第５図に示すものは、乗載板２２の巾方向両側
を係入させて当該乗載板２２の前部側部分２２ａ
を上方に膨らませるように案内する溝構成のガイ
ド（湾曲強制部材）２７をカセツト装填部１１に
設けた点に特徴がある。 What is shown in FIG. 5 is a front side portion 22a of the mounting plate 22 which is inserted into both widthwise sides of the mounting plate 22.
The cassette loading section 11 is characterized by a guide (curving force member) 27 having a groove structure that guides the cassette so as to bulge upward.
第６図に示すものは、カセツト装填部１１のカ
セツト挿入部近傍に、乗載板２２の巾方向両側を
係入させて該乗載板２２の浮き上がりを防止する
ガイド２８を設けると共に、前記カセツト装填部
１１の奥部には、前記乗載板２２の前端部ａを係
入させて該前端部ａを下方に向けて案内するガイ
ド２９を設けたもので、そのガイド２８，２９が
湾曲強制部材Ｂを構成し、第７図及び第８図に示
すように、カセツト装填部１１への給紙カセツト
１０の装填に伴つて、前記乗載板２２の前部側部
分２２ａを用紙ｂと共に上方に膨らませるような
湾曲状に撓み変形させる点に特徴がある。 The device shown in FIG. 6 is provided with a guide 28 near the cassette insertion part of the cassette loading section 11, which engages both sides of the mounting plate 22 in the width direction to prevent the mounting plate 22 from floating up. A guide 29 is provided at the back of the loading section 11 for engaging the front end a of the mounting plate 22 and guiding the front end a downward. As shown in FIGS. 7 and 8, when the paper feed cassette 10 is loaded into the cassette loading section 11, the front side portion 22a of the loading plate 22 is moved upward together with the paper b. It is unique in that it bends and deforms into a curved shape, as if it were inflated.
上記の各実施例において、前記乗載板２２の全
体を撓み変形可能に構成するとコスト的に安価で
あるが、屈曲にとつて必要な部分のみを局部的に
撓み変形可能に構成してもよい。 In each of the above-described embodiments, it is possible to reduce the cost by configuring the entire board 22 to be able to bend, but it is also possible to locally configure only the portions necessary for bending to be flexibly deformable. .
以上説明したように本考案によれば、給紙カセ
ツトの紙乗載板を湾曲可能な薄板材によつて形成
し、かつ画像形成装置本体の内部に湾曲強制部材
を設けたので、その画像形成装置本体の給紙方向
長さより大きい給紙カセツトをカセツト装填部に
装填する一挙動の簡単な操作で、その紙乗載板を
紙乗載面と直交する方向に湾曲状に撓み変形させ
てその給紙カセツトを画像形成装置本体内に収納
することができ、画像形成装置全体をコンパクト
化でき、かつその給紙カセツトを収納した状態で
用紙を捌いた状態にすることができる。
As explained above, according to the present invention, the paper loading plate of the paper feed cassette is formed of a bendable thin plate material, and the bending force member is provided inside the image forming apparatus main body, so that the image forming With one simple operation of loading a paper feed cassette that is larger than the length of the paper feed direction of the device main body into the cassette loading section, the paper loading plate is deformed into a curved shape in the direction orthogonal to the paper loading surface. The paper feed cassette can be housed within the image forming apparatus main body, the entire image forming apparatus can be made compact, and sheets can be handled while the paper feed cassette is housed.
第１図は画像形成装置の一例としての複写機全
体の構成を示す縦断側面図、第２図及び第３図は
給紙カセツトの別実施例を示す断面図、第４図乃
至第６図は湾曲強制部材の別実施例を示す要部の
断面図であり、第７図及び第８図は第６図に示す
湾曲強制部材の部分拡大図である。
２……画像形成装置本体、１０……給紙カセツ
ト、１１……カセツト装填部、２２……紙乗載
板、Ｂ……湾曲強制部材。
FIG. 1 is a vertical sectional side view showing the overall configuration of a copying machine as an example of an image forming apparatus, FIGS. 2 and 3 are sectional views showing another embodiment of a paper feed cassette, and FIGS. 4 to 6 are 7 is a sectional view of a main part showing another embodiment of a bending force member, and FIGS. 7 and 8 are partially enlarged views of the bend force member shown in FIG. 6. FIG. 2... Image forming apparatus main body, 10... Paper feeding cassette, 11... Cassette loading section, 22... Paper mounting plate, B... Curving force member.
Claims (1)
向長さよりも大である給紙カセツトであつて、そ
の給紙カセツトの紙乗載板が、湾曲可能な薄板材
よりなり、かつ前記画像形成装置本体のカセツト
装填部への給紙カセツトの押し込み装填動作によ
り、そのカセツト装填部に設けた湾曲強制部材に
よつて、前記紙乗載板が、その紙乗載面と直交す
る方向に湾曲状に撓み変形させられてその画像形
成装置本体内に収納されることを特徴とする給紙
カセツト。 A paper feed cassette whose length in the paper feed direction is larger than the length of the main body of the image forming apparatus in the paper feed direction, wherein the paper loading plate of the paper feed cassette is made of a bendable thin plate material, and By pushing and loading the paper feed cassette into the cassette loading section of the image forming apparatus main body, the paper loading plate is bent in the direction perpendicular to the paper loading surface by the curving forcing member provided in the cassette loading section. A paper feed cassette characterized in that it is deformed into a curved shape and is housed within the main body of an image forming apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987134194U JPH0542981Y2 (en) | 1987-08-31 | 1987-08-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987134194U JPH0542981Y2 (en) | 1987-08-31 | 1987-08-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6439326U JPS6439326U (en) | 1989-03-09 |
| JPH0542981Y2 true JPH0542981Y2 (en) | 1993-10-28 |
Family
ID=31392729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987134194U Expired - Lifetime JPH0542981Y2 (en) | 1987-08-31 | 1987-08-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0542981Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5767432A (en) * | 1980-10-14 | 1982-04-24 | Usac Electronics Ind Co Ltd | Automatic paper feeding device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5371444U (en) * | 1976-11-18 | 1978-06-15 |
-
1987
- 1987-08-31 JP JP1987134194U patent/JPH0542981Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5767432A (en) * | 1980-10-14 | 1982-04-24 | Usac Electronics Ind Co Ltd | Automatic paper feeding device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6439326U (en) | 1989-03-09 |
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