JPH0565418B2 - - Google Patents
Info
- Publication number
- JPH0565418B2 JPH0565418B2 JP2092211A JP9221190A JPH0565418B2 JP H0565418 B2 JPH0565418 B2 JP H0565418B2 JP 2092211 A JP2092211 A JP 2092211A JP 9221190 A JP9221190 A JP 9221190A JP H0565418 B2 JPH0565418 B2 JP H0565418B2
- Authority
- JP
- Japan
- Prior art keywords
- rotating
- shaft
- roller
- rotating shaft
- drive 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.)
- Expired - Lifetime
Links
- 230000000694 effects Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
Landscapes
- Delivering By Means Of Belts And Rollers (AREA)
- Facsimiles In General (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はフアクシミリ装置等の紙送り機構に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a paper feeding mechanism of a facsimile machine or the like.
従来の紙送り機構では、ばね性のある軸を回転
部材に挿入し、軸の両端を支持部材で支え、支持
部材の左右をばねで引張ることにより、回転部材
を駆動ローラに押しつけて左右の押圧を得ようと
するものであつた。この種の装置としては、フア
クシミリ装置HF25およびHF15などがある。
In conventional paper feeding mechanisms, a springy shaft is inserted into a rotating member, both ends of the shaft are supported by supporting members, and the left and right sides of the supporting member are pulled by springs, thereby pressing the rotating member against the drive roller and pushing it from side to side. It was an attempt to obtain. Devices of this type include facsimile devices HF25 and HF15.
上記従来技術は従動ローラの軸の支点が左右に
あるため、支持部材のそり、ねじれ、寸法公差な
どの影響により、軸のたわみ量すなわち回転部材
の押圧を左右等しくすることが困難であつた。
In the above-mentioned conventional technology, since the fulcrum of the shaft of the driven roller is located on the left and right sides, it is difficult to equalize the amount of deflection of the shaft, that is, the pressing force of the rotating member on the left and right sides, due to warpage, twisting, dimensional tolerance, etc. of the supporting member.
本発明の目的は、支持部材のそり、ねじれ、寸
法公差等の影響を排除し、常に回転部材の押圧を
左右等しくする機構を提供することにある。 SUMMARY OF THE INVENTION An object of the present invention is to provide a mechanism that eliminates the effects of warping, twisting, dimensional tolerances, etc. of the support member and always applies equal pressure to the rotating members on both sides.
上記目的は、従動ローラの軸の支点を中央に設
けることにより、支持部材のそり等の影響をなく
すことで達成される。
The above object is achieved by providing the fulcrum of the shaft of the driven roller at the center, thereby eliminating the effects of warping of the support member.
ばね性のある従動ローラの軸の中央を１カ所だ
け支え、その支点部から左右等距離に回転部材を
配置して駆動ローラの押しつければ、左右の回転
モーメントは等しいので、左右同じ押圧を得るこ
とができる。更に回転部材の中央だけが軸に接触
しておくようにすれば、軸のたわみに関係なく回
転部材は常に駆動ローラに平行に押しつけること
が出来る。
If the center of the shaft of a driven roller with spring properties is supported at only one point, and rotating members are placed equidistantly from the fulcrum to the left and right and the drive roller presses against it, the rotational moment on the left and right sides is equal, so the same pressing force can be obtained on the left and right sides. be able to. Furthermore, if only the center of the rotating member is kept in contact with the shaft, the rotating member can always be pressed parallel to the drive roller regardless of the deflection of the shaft.
以下、本発明の一実施例を第１図により説明す
る。ばね性のある回転軸４の中央を支持部材５の
支点６が支えており、左右等距離に回転部材２，
２′が前記回転軸に挿入されている。回転部材の
内部はその中央の支点３，３′だけが回転軸に接
触し、全ての荷重を受ける構造になつている。前
記回転軸はその両端が支持部材に設けられた回転
軸保持部７，７′に挿入されている。支持部材５
は両端をばね８，８′で引張られ駆動ローラ１に
回転部材が押しつけられるが回転軸のたわみによ
り生じる反力とばねの引張力がつり合つた所で支
持部材は静止する。また回転部材は中央部を回転
軸で押えられているだけであるから、駆動ローラ
と常に平行となり、片当たり等の恐れはない。こ
の様な構造であれば、左右の回転部材の反力は等
しくなり、原稿９をガイド１０に沿つて挿入し紙
送りを行つても斜行等は生じず、常に安定した紙
送り動作が確保できる。第２図は第１図の中央断
面図である。上側のガイド１１は支持部材５と一
体に固定されており、支持部材は支点１２を中心
にして一点鎖線で示す如く開くことが出来るの
で、万一紙ジヤムが起きても容易に原稿を取出す
ことが出来る。
An embodiment of the present invention will be described below with reference to FIG. A fulcrum 6 of a supporting member 5 supports the center of a rotating shaft 4 with spring properties, and rotating members 2,
2' is inserted into the rotating shaft. The interior of the rotating member is structured such that only the central fulcrums 3, 3' contact the rotating shaft and receive all the load. Both ends of the rotating shaft are inserted into rotating shaft holding parts 7, 7' provided on the support member. Support member 5
The rotating member is pressed against the drive roller 1 by being pulled by springs 8 and 8' at both ends, but the supporting member comes to rest when the reaction force generated by the deflection of the rotating shaft and the tension of the spring are balanced. Further, since the rotating member is only held down by the rotating shaft at its center, it is always parallel to the drive roller, and there is no risk of uneven contact. With this structure, the reaction forces of the left and right rotating members are equal, and even when the original 9 is inserted along the guide 10 and the paper is fed, skewing etc. does not occur, and stable paper feeding is always ensured. can. FIG. 2 is a central sectional view of FIG. 1. The upper guide 11 is fixed integrally with the support member 5, and the support member can be opened around the fulcrum 12 as shown by the dashed line, so that even if a paper jam occurs, it is easy to take out the original. I can do it.
なお、支持部材５の回転軸保持部７，７′は回
転軸４がたわんでも接触しないだけ〓間を設けて
あり支持部材５を紙ジヤム等で開く時だけ回転軸
を支えるようになつている。 Note that the rotating shaft holding parts 7 and 7' of the supporting member 5 are provided with enough space that they do not come into contact with each other even if the rotating shaft 4 bends, and are designed to support the rotating shaft only when the supporting member 5 is opened with a paper jam or the like. .
本発明によれば、支持部材にそり、ねじれ等が
あつても、従動ローラには常に左右等しい押圧が
かかり、安定した紙送りが得られる効果がある。
According to the present invention, even if the support member is warped, twisted, etc., equal pressure is always applied to the driven rollers on both sides, and stable paper feeding can be achieved.
第１図は本発明の一実施例である紙送り機構の
正面から見た断面図、第２図は第１図の中央断面
図である。
１……駆動ローラ、２，２′……回転部材、４
……回転軸、５……支持部材、８……ばね、９…
…原稿、１０……原稿ガイド。
FIG. 1 is a sectional view from the front of a paper feeding mechanism according to an embodiment of the present invention, and FIG. 2 is a central sectional view of FIG. 1. 1... Drive roller, 2, 2'... Rotating member, 4
...Rotating shaft, 5...Supporting member, 8...Spring, 9...
...Manuscript, 10...Manuscript guide.
Claims (1)
て、従動ローラの軸にばね性を有する部材を使用
し、この軸の中央が支点となるよう左右に回転部
材を配置し、回転部材はその中央だけが軸に接す
る構造とし、これを駆動用ローラに圧接して従動
回転させるようにしたことを特徴とする紙送りロ
ーラ。1. For the drive roller and the driven roller in contact with it, a spring-like member is used for the shaft of the driven roller, and rotating members are placed on the left and right so that the center of this shaft serves as a fulcrum, and only the center of the rotating member is What is claimed is: 1. A paper feed roller, characterized in that the paper feed roller has a structure in which it is in contact with a drive roller, and is in pressure contact with a drive roller to be driven to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2092211A JPH033842A (en) | 1990-04-09 | 1990-04-09 | Paper feed roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2092211A JPH033842A (en) | 1990-04-09 | 1990-04-09 | Paper feed roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH033842A JPH033842A (en) | 1991-01-09 |
| JPH0565418B2 true JPH0565418B2 (en) | 1993-09-17 |
Family
ID=14048112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2092211A Granted JPH033842A (en) | 1990-04-09 | 1990-04-09 | Paper feed roller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH033842A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9914313B2 (en) | 2015-09-30 | 2018-03-13 | Seiko Epson Corporation | Printing apparatus |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0654353U (en) * | 1991-07-23 | 1994-07-22 | ミツミ電機株式会社 | Image reader |
| JP4497311B2 (en) * | 2005-07-22 | 2010-07-07 | セイコーエプソン株式会社 | Recording device |
| JP4228238B2 (en) | 2006-08-18 | 2009-02-25 | セイコーエプソン株式会社 | Roller forming apparatus, roller forming die, and roller manufacturing method |
| JP6137024B2 (en) | 2014-03-31 | 2017-05-31 | ブラザー工業株式会社 | Conveying apparatus and recording apparatus having the same |
| US9815305B2 (en) | 2015-03-31 | 2017-11-14 | Brother Kogyo Kabushiki Kaisha | Printing apparatus |
-
1990
- 1990-04-09 JP JP2092211A patent/JPH033842A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9914313B2 (en) | 2015-09-30 | 2018-03-13 | Seiko Epson Corporation | Printing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH033842A (en) | 1991-01-09 |
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