JPH03106737A - Conveying mechanism for picture forming device - Google Patents
Conveying mechanism for picture forming deviceInfo
- Publication number
- JPH03106737A JPH03106737A JP1245994A JP24599489A JPH03106737A JP H03106737 A JPH03106737 A JP H03106737A JP 1245994 A JP1245994 A JP 1245994A JP 24599489 A JP24599489 A JP 24599489A JP H03106737 A JPH03106737 A JP H03106737A
- Authority
- JP
- Japan
- Prior art keywords
- roller
- conveyance
- holding means
- conveyance roller
- conveying
- 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
- 230000007246 mechanism Effects 0.000 title claims description 12
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000005452 bending Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 description 8
- 230000007723 transport mechanism Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、複写機、ファクシミ１ハ プリンタなどの画
像形成装置の、用紙などの被搬送物を搬送するための搬
送機構に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a transport mechanism for transporting objects such as paper in an image forming apparatus such as a copying machine, a facsimile printer, and the like.
［従来の技術コ
従来、例えば、複写機のコピー用紙を、転写帯電器、熱
定着器等へ搬送するために用いられている手段は、上下
一対の搬送ローラの回転によって、コピー用紙を挟みつ
つ先へ搬送している。[Conventional technology] Conventionally, for example, the means used to convey copy paper in a copying machine to a transfer charger, heat fixing device, etc. is to rotate a pair of upper and lower conveyance rollers to sandwich and hold the copy paper. It is being transported to a destination.
ところで、この搬送ローラは、比較的長いものが多く、
そのため中央部において、大きなたわみを生じる。そこ
で、両端だけでなく、中央部においても、ブシュや、ベ
アリング等の軸受け部材を用いてたわまないようにして
いる。By the way, many of these conveyor rollers are relatively long,
Therefore, a large deflection occurs in the central part. Therefore, bearing members such as bushings and bearings are used not only at both ends but also at the center to prevent bending.
［発明が解決しようとする課題コ
しかしながら、搬送ローラをメインテ．ナンスする場合
、両端の軸受け部材を取り外さなくても、中央部の軸受
け部材を取り外すだけでよい場合がある。[Problems to be solved by the invention However, it is difficult to maintain the conveyance roller. In some cases, it may be sufficient to simply remove the central bearing member without removing the bearing members at both ends.
そのような場合でも、従来は、一旦両端の軸受け部材を
外した後、中央部の軸受け部材をローラに沿ってスライ
ドさせ、外さざるを得なかった。Even in such a case, conventionally, it was necessary to remove the bearing members at both ends and then slide the bearing member at the center along the rollers to remove it.
これが第１の課題である。This is the first issue.
また、従来の軸受け部材は、ブシュ、ベアリング等を支
持する支持部材を装置底壁などに固定するなど特別な部
材、構造を必要としていた。これが第２の課題である。Furthermore, conventional bearing members require special members and structures, such as fixing a support member for supporting the bush, bearing, etc. to the bottom wall of the device. This is the second issue.
本発明は、このような従来技術の課題を解決することを
目的とする。The present invention aims to solve the problems of the prior art.
［課題を解決するための手段］
請求項ｌの本発明は、用紙等被搬送物を搬送するための
搬送用ローラと、その両端を軸支する軸受け部材と、前
記ローラの中央部を収納出来る大きさの凹部を有する保
持手段とを備え、その凹部に依って、収納されたその中
央部の保持手段の凹部底方向への移動は阻止ざれるとと
もに、前記保持手段は、前記中央部から、ローラ軸方向
に実質的に垂直な方向に取り外し得るものである画像形
成装置の搬送機構によって、第１の課題を解決するもの
である。[Means for Solving the Problems] The present invention as claimed in claim 1 is characterized in that a conveying roller for conveying an object to be conveyed such as a sheet, a bearing member that pivotally supports both ends of the conveying roller, and a central portion of the roller can be accommodated. a holding means having a recess of the same size, the recess prevents the stored holding means in the central portion from moving toward the bottom of the recess, and the holding means has a recess extending from the central portion to The first problem is solved by a conveyance mechanism of an image forming apparatus that can be removed in a direction substantially perpendicular to the roller axis direction.
請求項２０本発明は、用紙等被搬送物を搬送するための
搬送用ローラと、その両端を軸支する軸受け部材と、前
記被搬送物を前記搬送用ローラに送るための搬送ガイド
であって、その搬送ガイドの一部に、前記ローラの中央
部の少なくとも一方向への移動を阻止する保持手段を形
成してなる搬送ガイドとを備えた画像形成装置の搬送機
構によって、第２の課題を解決するものである。Claim 20 The present invention provides a conveyance roller for conveying an object to be conveyed such as a sheet, a bearing member that pivotally supports both ends of the conveyance roller, and a conveyance guide for conveying the object to be conveyed to the conveyance roller. The second problem can be solved by a conveyance mechanism of an image forming apparatus including a conveyance guide formed in a part of the conveyance guide with a holding means for preventing movement of the central portion of the roller in at least one direction. It is something to be solved.
［作用］
請求項ｌの本発明は、保持手段の凹部に依って、搬送用
ローラの中央部の凹部底壁方向への移動を阻止できるの
で、たわみ等を防ぐことが出来る。[Function] According to the present invention, the recess of the holding means can prevent the central portion of the conveying roller from moving toward the bottom wall of the recess, thereby preventing deflection or the like.
また、保持手段を取り外す場合には、前記中央部から、
ローラ軸方向に実質的に垂直な方向に取り外すことがで
きるので、両端の軸受け部材を取り外さなくても済む。In addition, when removing the holding means, from the central part,
Since the roller can be removed in a direction substantially perpendicular to the axial direction of the roller, there is no need to remove the bearing members at both ends.
請求項２の本発明は、搬送ガイドの一部に形成された保
持手段が、ローラの中央部の少なくとも一方向への移動
を阻止イるので、その保持手段を支持する部材を特に設
ける必要がない。According to the second aspect of the present invention, since the holding means formed in a part of the conveyance guide prevents the central portion of the roller from moving in at least one direction, it is necessary to provide a member to support the holding means. do not have.
［実施例］
以下に、本発明を、その実施例を示す図面を参照しなが
ら説明する。[Examples] The present invention will be described below with reference to drawings showing examples thereof.
第１図は、請求項１の本発明にかかる画像形成装置の搬
送機構の一実施例を示す正面図である。FIG. 1 is a front view showing an embodiment of a conveying mechanism of an image forming apparatus according to a first aspect of the present invention.
同図において、複写機におけるコピー用紙を搬送するた
めの搬送ローラ２（一本だけ図示する〉は、複写機内部
に対向して立設した保持板１， １に、その両端部を
軸受け部材３に依って、軸支されている。軸受け部材３
は、ブシュ３１やＥリング３２からなっている。中央部
には、大径のローラ部４が複数個取り付けられている。In the figure, a conveying roller 2 (only one is shown) for conveying copy paper in a copying machine is attached to holding plates 1, 1, which are disposed facing each other inside the copying machine, and its both ends are supported by bearing members 3. The shaft is supported by the bearing member 3.
consists of a bush 31 and an E-ring 32. A plurality of large diameter roller parts 4 are attached to the central part.
他方、搬送ローラ２に並行にもう一つの保持板５が本体
に立設されている。そして、その保持板５に、第１図、
第２図に示すような、搬送ローラ２の中央部を収納出来
る大きさの凹部６を有する保持手段７がネジ８どめされ
ている．保持手段７は、プラスチック材料などで成形さ
れたものである。その凹部６に搬送ローラ２の中央部が
はめ込まれている。On the other hand, another holding plate 5 is erected on the main body in parallel with the conveying roller 2. Then, on the holding plate 5, as shown in FIG.
As shown in FIG. 2, a holding means 7 having a recess 6 large enough to accommodate the central portion of the conveying roller 2 is secured with a screw 8. The holding means 7 is molded from a plastic material or the like. The center portion of the conveyance roller 2 is fitted into the recess 6.
従って、その中央部が凹部底方向（図面下方向、矢符参
照）へ移動することは阻止される。他方、前記保持手段
７は、前記中央部から、ローラ軸方向に実質的に垂直な
方向に取り外し得るものである。すなわち、凹部６の開
放部分は、ローラ２の中央部が自由に出入り出来るだけ
の大きさを有している。Therefore, the central portion is prevented from moving toward the bottom of the recess (downward in the drawing, see arrow). On the other hand, the holding means 7 can be removed from the central part in a direction substantially perpendicular to the roller axis. That is, the open portion of the recess 6 is large enough for the center portion of the roller 2 to freely move in and out.
次に、上記実施例の作用を説明する。Next, the operation of the above embodiment will be explained.
搬送ローラ２の中央部が矢符方向へたわもうとしても、
中央部が入り込んでいる凹部６によ−Ｊ″Ｌ、その移動
が阻止される。従って、搬送ローラ２がたわむことはな
い。Even if the central part of the conveyance roller 2 tries to bend in the direction of the arrow,
The recess 6 into which the central portion is inserted prevents its movement. Therefore, the conveying roller 2 does not bend.
作業者がメインテナンスのため、この保持手段７を取り
外す場合は、ネジ８を外すと、保持千段７が下方に移動
可能になるので、そうすることによって、簡単に、その
場所で取り外すことが出来る。両端の軸受け部材３を取
り外す必要はない。When an operator wants to remove this holding means 7 for maintenance, the holding means 7 can be moved downward by removing the screw 8, so that it can be easily removed at that location. . There is no need to remove the bearing members 3 at both ends.
次に、請求項２の本発明にかかる画像形成装置の搬送機
構を説明する。Next, the transport mechanism of the image forming apparatus according to the second aspect of the present invention will be explained.
第３図は、その一実施例を示す略示断面図であって、用
紙をバイパステーブルから取り出し、レジストローラま
で搬送するための機構を示している。同図において、バ
イパステーブル１０には、用紙ｌ１がセットざれている
。この用紙１１の先端（図面上左方端）は、前送り用ロ
ーラｌ２のところまで届いている。その途中には、用紙
１ｌの存在を検出するための紙検知スイッチｌ３が取り
付けられ、その接触子１３ａが上にあると用紙１１が存
在することになり、下方へ下がると用紙１１がバイパス
テーブルｌＯ上になくなったことになる。バネｌ４は、
用紙先端を前送り用ローラ１２へ、可動案内板ｌ５によ
って、押し付けるための付勢手段である。FIG. 3 is a schematic cross-sectional view showing one embodiment of the present invention, and shows a mechanism for taking out the paper from the bypass table and conveying it to the registration rollers. In the figure, a sheet of paper l1 is set on the bypass table 10. The leading edge of the paper 11 (the left end in the drawing) reaches the forward feed roller l2. A paper detection switch l3 for detecting the presence of the paper 1l is installed in the middle of the switch, and when the contact 13a is up, it means that the paper 11 is present, and when it moves downward, the paper 11 is transferred to the bypass table lO. This means that it is no longer on top. Spring l4 is
This is a biasing means for pressing the leading edge of the paper against the advance roller 12 by means of the movable guide plate l5.
この可動案内板１５と前送り用ローラｌ２の前方には、
搬送ローラの一例としての一対の分離上コロ．１ Ｂと
分離下コロｌ９が配置されている。この両分離コロｌ８
、ｌ９との間には、前記用紙１１を案内するための搬送
ガイド１６、１７が配置されている。In front of this movable guide plate 15 and forward feed roller l2,
A pair of separation upper rollers as an example of conveyance rollers. 1B and a separate lower roller 19 are arranged. Both separation rollers l8
, l9, conveyance guides 16 and 17 for guiding the paper 11 are arranged.
第４図は、第３図における矢符Ｘ方向から分離コロｌ８
、ｌ９や搬送ガイド１６、ｌ７を見た図である。搬送ガ
イド１６、ｌ７は中央部が大きく切り欠かれて、開口部
Ｙを形成している。その開口部Ｙには、大径の０−ラ部
２ｏが少し入り込んでいる。Figure 4 shows the separation roller l8 from the arrow X direction in Figure 3.
, l9 and the transport guides 16 and l7. The transport guides 16, 17 are largely cut out at the center to form an opening Y. A large-diameter 0-ra portion 2o is slightly inserted into the opening Y.
さらに、その開口部Ｙの両端には、搬送ガイドｌ６、ｌ
７に形成された保持手段の一例としての、ブラケット部
２１， ２１， ２２、２２が、搬送ガイドｌ６、
ｌ７から切り起こされて形成されている。このブラケッ
ト部２１，２２は、それぞれ孔が形成され、そこへ、前
記分離コ０１８、１９が貫通している。第５図は、その
ブラケット部２１，２２の所での部分断面図である。し
たがって、分離コロ１８、ｌ９は、このブラケット部２
１，２２により、さらには、搬送ガイドｌ６、１７によ
って、保持されることとなる。したがって、分離コロｌ
８、１９は、この実施例では、上にも下にもたわまず、
移動しない。Further, at both ends of the opening Y, there are conveyance guides l6, l.
The bracket parts 21, 21, 22, 22, which are an example of the holding means formed in the transport guide l6,
It is formed by cutting up from l7. Each of the bracket parts 21 and 22 has a hole formed therein, into which the separating rods 018 and 19 penetrate. FIG. 5 is a partial sectional view of the bracket parts 21 and 22. Therefore, the separation rollers 18 and l9 are connected to this bracket part 2.
1 and 22, and further by the conveyance guides l6 and 17. Therefore, the separating roller l
8 and 19 do not bend upward or downward in this example,
Don't move.
なお、分離コロｌ８、ｌ９は、その両端が、保持板Ｌ
１に、軸受け部材３、３によって軸支されている。Note that both ends of the separation rollers l8 and l9 are connected to the retaining plate L.
1, it is pivotally supported by bearing members 3, 3.
第３図に於で、前記搬送ガイドｌ６、ｌ７の先には、中
間ローラ２３、２３が配置され、更に、その先には、搬
送ガイド２４、２４が配置され、レジストローラ２５へ
用紙１１を案内するようになっている。In FIG. 3, intermediate rollers 23, 23 are arranged ahead of the conveyance guides l6, l7, and furthermore, conveyance guides 24, 24 are disposed ahead of the conveyance guides 16, 17, and convey the paper 11 to the registration rollers 25. It is designed to guide you.
次に、本実施例の作用を説明する。Next, the operation of this embodiment will be explained.
用紙１１を前送りローラ１２でバイパステーブル１０か
ら取り出し、分離コロｌ８、１９で一枚に分離する。そ
の際、分離コロｌ８、ｌ９は、用紙１１の存在に依って
、上下に移動しようとする。A sheet 11 is taken out from a bypass table 10 by a forwarding roller 12 and separated into one sheet by separating rollers 18 and 19. At this time, the separation rollers l8 and l9 tend to move up and down depending on the presence of the paper 11.
しかし、搬送ガイド１６、１７の一部に形成された保持
手段２ｌによって、分離コロ１８、ｌ９は保持されてい
るので、上下に移動してたわむこともない。従って、用
紙１１を確実に一枚づつ分離して搬送することが出来る
。However, since the separation rollers 18 and 19 are held by the holding means 2l formed in a part of the conveyance guides 16 and 17, they do not move up and down and bend. Therefore, the sheets 11 can be reliably separated and conveyed one by one.
なお、前記搬送ガイドｌ６、ｌ７に形成された保持手段
２ｌは、前述のように、金属板を所定形状に打ち抜き、
その一部を切り起こししたものである必要はなく、保持
手段２ｌを搬送ガイドｌ６、ｌ７にネジどめ、溶接等に
依って、後から取り付けてもよい。Note that the holding means 2l formed on the conveyance guides l6 and l7 are made by punching a metal plate into a predetermined shape, as described above.
It is not necessary to cut and raise a part of the holding means 2l, and the holding means 2l may be attached to the conveyance guides l6, l7 later by screwing, welding, or the like.
また、保持手段２１，２２は、分離コロ１８、１９を丸
抱えするものでなく、分離上コロｌ８については、上か
ら下へ、分離下コロｌ９については、下から上へ押さえ
るものであってもよい。Furthermore, the holding means 21 and 22 do not hold the separating rollers 18 and 19 whole, but may hold the upper separating roller l8 from the top to the bottom and the lower separating roller l9 from the bottom to the top. good.
［発明の効果］
以上説明したように、請求項１記載の本発明にかかる画
像形成装置の搬送機構は、搬送ローラの移動を阻止する
と共に、保持手段をその場所で取り外し出来る凹部を備
えているので、搬送ローラの中央のたわみ等の移動を阻
止できると共に、メインテナンス等の際、いちいち両端
の軸受け部材を外す手間を省くことが出来る長所を有す
る。[Effects of the Invention] As described above, the conveyance mechanism of the image forming apparatus according to the present invention as set forth in claim 1 is provided with a recess that prevents the movement of the conveyance roller and allows the holding means to be removed at that location. Therefore, it has the advantage that it is possible to prevent movement such as deflection of the center of the conveyance roller, and that it is possible to save the effort of removing the bearing members at both ends each time during maintenance or the like.
また、請求項２の本発明にかかる画像形成装置の搬送機
構は、搬送ガイドの一部に形成した保持手段によって、
搬送ローラを保持するようにしているので、簡単な機構
で、搬送ローラのたわみ等の移動を防止することが出来
る。Further, the conveyance mechanism of the image forming apparatus according to the second aspect of the present invention has a holding means formed in a part of the conveyance guide.
Since the conveyance roller is held, a simple mechanism can prevent the conveyance roller from deflecting or moving.
第１図は、請求項ｌの本発明にかかる画像形成装置の搬
送機構の一実施例を示す正面図、第２図は、同実施例の
保持手段の側面図、第３図は、請求項２０本発明にかか
る画像形成装置の搬送機構の一実施例を示す正面図、第
４図は、同実施例の側面図、第５図は、同実施例の保持
手段における部分断面正面図である。
２・・・搬送ローラ ３・・・軸受け部材 ６・●・凹
部７、２１，２２・・・保持手段 １１・・・用
紙１ ６．１ ７・・・搬送ガイド ｌ８、ｌ９・◆
・搬送ローラ（分離コロ）FIG. 1 is a front view showing an embodiment of a conveyance mechanism of an image forming apparatus according to the present invention as claimed in claim 1, FIG. 2 is a side view of a holding means of the same embodiment, and FIG. 20 A front view showing an embodiment of the conveyance mechanism of the image forming apparatus according to the present invention, FIG. 4 is a side view of the embodiment, and FIG. 5 is a partially sectional front view of the holding means of the embodiment. . 2...Conveyance roller 3...Bearing member 6・●・Concave portion 7, 21, 22...Holding means 11...Paper 1 6.1 7...Conveyance guide l8, l9・◆
・Conveyance roller (separation roller)
Claims (2)
、その両端を軸支する軸受け部材と、前記ローラの中央
部を収納出来る大きさの凹部を有する保持手段とを備え
、その保持手段の凹部に依って、収納されたその中央部
の凹部底方向への移動は阻止されるとともに、前記保持
手段は、前記中央部から、ローラ軸方向に実質的に垂直
な方向に取り外し得るものであることを特徴とする画像
形成装置の搬送機構。(1) A conveying roller for conveying an object to be conveyed such as paper, a bearing member that pivotally supports both ends of the conveying roller, and a holding means having a recessed portion large enough to accommodate the center portion of the roller, and holding the roller. The recess of the means prevents the stored center portion from moving toward the bottom of the recess, and the holding means can be removed from the center portion in a direction substantially perpendicular to the axial direction of the roller. A conveyance mechanism for an image forming apparatus, characterized in that:
、その両端を軸支する軸受け部材と、前記被搬送物を前
記搬送用ローラに送るための搬送ガイドであって、その
搬送ガイドの一部に、前記ローラの中央部の少なくとも
一方向への移動を阻止する保持手段を形成してなる搬送
ガイドとを備えたことを特徴とする画像形成装置の搬送
機構。(2) A conveyance roller for conveying an object to be conveyed such as paper, a bearing member that pivotally supports both ends of the conveyance roller, and a conveyance guide for sending the object to be conveyed to the conveyance roller, the conveyance guide A conveyance mechanism for an image forming apparatus, characterized in that a conveyance guide is formed in a part of the roller and includes a holding means for preventing movement of the central portion of the roller in at least one direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1245994A JPH03106737A (en) | 1989-09-20 | 1989-09-20 | Conveying mechanism for picture forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1245994A JPH03106737A (en) | 1989-09-20 | 1989-09-20 | Conveying mechanism for picture forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03106737A true JPH03106737A (en) | 1991-05-07 |
Family
ID=17141890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1245994A Pending JPH03106737A (en) | 1989-09-20 | 1989-09-20 | Conveying mechanism for picture forming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03106737A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0647245U (en) * | 1992-12-01 | 1994-06-28 | セイコーエプソン株式会社 | Bearing structure of paper feeder |
| JP2007227578A (en) * | 2006-02-23 | 2007-09-06 | Tecnisco Ltd | Manufacturing method of jig |
| JP2009242026A (en) * | 2008-03-28 | 2009-10-22 | Canon Inc | Sheet delivery device and image forming device |
| JP2019172413A (en) * | 2018-03-28 | 2019-10-10 | グローリー株式会社 | Thickness detection device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS643730B2 (en) * | 1984-05-22 | 1989-01-23 | Nippon Tobacco Sangyo |
-
1989
- 1989-09-20 JP JP1245994A patent/JPH03106737A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS643730B2 (en) * | 1984-05-22 | 1989-01-23 | Nippon Tobacco Sangyo |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0647245U (en) * | 1992-12-01 | 1994-06-28 | セイコーエプソン株式会社 | Bearing structure of paper feeder |
| JP2007227578A (en) * | 2006-02-23 | 2007-09-06 | Tecnisco Ltd | Manufacturing method of jig |
| JP2009242026A (en) * | 2008-03-28 | 2009-10-22 | Canon Inc | Sheet delivery device and image forming device |
| JP2019172413A (en) * | 2018-03-28 | 2019-10-10 | グローリー株式会社 | Thickness detection device |
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