JPS63265671A - Paper feed apparatus - Google Patents
Paper feed apparatusInfo
- Publication number
- JPS63265671A JPS63265671A JP10002887A JP10002887A JPS63265671A JP S63265671 A JPS63265671 A JP S63265671A JP 10002887 A JP10002887 A JP 10002887A JP 10002887 A JP10002887 A JP 10002887A JP S63265671 A JPS63265671 A JP S63265671A
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- feed roller
- paper pan
- bearing member
- parts
- 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
- 239000000463 material Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
- B41J13/02—Rollers
- B41J13/036—Rollers co-operating with a roller platen
- B41J13/048—Front and rear rollers both mounted on a common carrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
- B41J13/02—Rollers
- B41J13/076—Construction of rollers; Bearings therefor
Landscapes
- Handling Of Cut Paper (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、シート送り装置に関し、詳しくはタイプライ
タ等に設けられ、プラテンに沿って記録シートを案内す
るペーパーパンにフィードローラが軸支されるようにし
たシート送り装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a sheet feeding device, and more specifically, it is provided in a typewriter or the like, and a feed roller is pivotally supported by a paper pan that guides a recording sheet along a platen. The present invention relates to a sheet feeding device configured to have a sheet feeding device.
（従来の技術）
近年ではタイプライタ等に用いられる各種部品も廉価で
量産に適するモールド成形品に変わってきており、印字
用紙をプラテンに沿って案内するために設けられるペー
パーパンもその例外ではなくモールド成形品が多く使用
されるようになってきた。ところで、ペーパーパンに関
連した位置に設けられシート送りのためにプラテンに接
してこれと協動するフィードローラをペーパーパンに直
接軸支させるようにしたシート送り装置が知られている
が、かかるシート送り装置においてはフィードローラを
プラテンに接触させることでペーパーパンとプラテンと
の間のガイド隙間を高精度に保つことができるという利
点がある。(Prior art) In recent years, various parts used in typewriters and the like have been replaced by molded products that are inexpensive and suitable for mass production, and paper pans installed to guide printing paper along the platen are no exception. Molded products are increasingly being used. Incidentally, there is a known sheet feeding device in which a feed roller, which is provided at a position related to a paper pan and which contacts and cooperates with a platen for sheet feeding, is directly supported by the paper pan. The feeding device has the advantage that by bringing the feed roller into contact with the platen, the guide gap between the paper pan and the platen can be maintained with high precision.
第５図は従来のこの種のシート送り装置を分解して示し
たもので、ここで１は記録シートを巻回した状態に保持
し、その回転によりシート送りが可能なプラテンである
。２はこのプラテンｌに沿って記録シートを案内するた
めのペーパーパン、３は２木のフィードローラ、４はそ
れぞれのフィードローラ軸であって、ペーパーパン２の
プラテンｌに沿った曲面には２木のフィードローラ３を
それぞれ配設するための装着孔５と、その両端に軸支部
６が形成されている。FIG. 5 shows an exploded view of a conventional sheet feeding device of this type, in which reference numeral 1 denotes a platen that holds a recording sheet in a wound state and can feed the sheet by rotating the platen. 2 is a paper pan for guiding the recording sheet along this platen l, 3 is a two-wood feed roller, and 4 is each feed roller axis. Mounting holes 5 for respectively arranging wooden feed rollers 3 and shaft supports 6 are formed at both ends thereof.
また、ペーパーパン２の両側のフランジ部２Ａにはビン
孔２Ｂが穿設されていて、このビン孔２Ｂに設けたピン
７によりフィードレバー８と連結されている。９は、不
図示のフレームに軸支され、フィードレバー８を揺動自
在に支持する支持ビン、１０は引張りばねである。Further, a bottle hole 2B is formed in the flange portions 2A on both sides of the paper pan 2, and is connected to a feed lever 8 by a pin 7 provided in the bottle hole 2B. Reference numeral 9 designates a support bin that is pivotally supported by a frame (not shown) and swingably supports the feed lever 8, and 10 is a tension spring.
そこで、このように構成されたシート送り装置において
は、フィードローラ軸４の両端をペーパーパン２の軸支
部６にそれぞれ嵌め込んで軸支させるようになした上、
引張りばね１０によってペーパーパン２をプラテン１に
向けて偏倚させるようになし、以て、フィードローラ３
をプラテン１に圧接した状態に保つと共に、プラテン１
とペーパーパン２のガイド面２Ｃとの間に一定の隙間を
保たせることができる。なお、フィードローラおよびプ
ラテンの動作については周知の通りであり、その説明を
省略する。Therefore, in the sheet feeding device configured as described above, both ends of the feed roller shaft 4 are fitted into the shaft supports 6 of the paper pan 2 for pivotal support, and
The paper pan 2 is biased toward the platen 1 by the tension spring 10, and the feed roller 3 is biased toward the platen 1.
while maintaining the platen 1 in pressure contact with the platen 1.
A constant gap can be maintained between the paper pan 2 and the guide surface 2C of the paper pan 2. Note that the operations of the feed roller and platen are well known, and their explanation will be omitted.
（発明が解決しようとする問題点）
しかしながら、上述したようなシート送り装置にあって
は、長時間の使用によってペーパーパンが汚れたり、あ
るいはフィードローラの周辺でシートにジャムが発生し
た場合、ペーパーパンをフィードレバーによりプラテン
から引き離すようになして清掃したり、ジャムを起した
シートを取除いたりする必要がある。そこで、ペーパー
パンをプラテンから引き離す場合にフィードローラがペ
ーパーパンの軸支部から外れ易いため忘失の虞があり、
また、組立時にフィードローラ軸の軸端が正しく軸支部
に軸支されないと適正なシート送り動作がなされなくな
る。(Problem to be Solved by the Invention) However, in the sheet feeding device as described above, if the paper pan becomes dirty due to long-term use or if a jam occurs in the sheet around the feed roller, the paper It is necessary to clean the pan by pulling it away from the platen using a feed lever, or to remove jammed sheets. Therefore, when the paper pan is separated from the platen, the feed roller easily comes off from the shaft support of the paper pan, so there is a risk of forgetting it.
Further, if the shaft end of the feed roller shaft is not correctly supported by the shaft support during assembly, proper sheet feeding operation will not be performed.
本発明の目的は、上述従来の問題点に着目し、その解決
を図るべく、フィードローラのペーパーパンへの組込み
および取外しが容易で、しかも正確にペーパーパンにフ
ィードローラを軸支させることができ、ペーパーパンを
プラテンから引外す動作に際してもフィードローラがペ
ーパーパンから外れるようなことがない簡単でユニット
化された構造を有するシート送り装置を提供することに
ある。An object of the present invention is to focus on the above-mentioned conventional problems, and to solve the problems, the feed roller can be easily installed and removed from the paper pan, and the feed roller can be accurately pivoted to the paper pan. An object of the present invention is to provide a sheet feeding device having a simple and unitized structure in which a feed roller does not come off from a paper pan even when the paper pan is pulled out from a platen.
（問題点を解決するための手段）
かかる目的を達成するために、本発明は、プラテンに沿
って記録シートを案内するためのペーパーパンと、プラ
テンに圧接して記録シートをシート送りするフィードロ
ーラとを有し、フィードローラの軸をペーパーパンに設
けた軸支部に軸支させるようにしたシート送り装置にお
いて、フィードローラの軸と軸支部との間に軸受部材を
介装し、軸受部材を軸支部およびフィードローラ軸のう
ち少なくとも軸支部に係止可能なようにしたことを特徴
とする。(Means for Solving the Problems) In order to achieve the above object, the present invention provides a paper pan for guiding a recording sheet along a platen, and a feed roller for conveying a recording sheet by pressing against the platen. In this sheet feeding device, the shaft of the feed roller is pivotally supported by a shaft support provided in a paper pan, in which a bearing member is interposed between the shaft of the feed roller and the shaft support, and the bearing member is It is characterized in that it can be locked to at least the shaft support of the shaft support and the feed roller shaft.
（作 用）
本発明によれば、フィードローラ軸の軸端がペーパーパ
ンの軸支部に軸受部材を介して係合されるようにしてあ
り、軸受部材を上記軸支部から取外さない限りフィード
ローラがペーパーパンから外れることはなく、また、ペ
ーパーパンにフィードローラを組込む際にはフィードロ
ーラの軸端をペーパーパンの軸支部に挿入した状態で、
上記軸端と軸支部との間に軸受部材を嵌合させるように
するだけでよく、極めて簡単な構成で、分解組立が容易
にでき、しかも通常の取扱い状態ではフィードローラが
ペーパーパンから外れるようなことがない。(Function) According to the present invention, the shaft end of the feed roller shaft is engaged with the shaft support of the paper pan via the bearing member, and unless the bearing member is removed from the shaft support, the feed roller shaft is engaged with the shaft support of the paper pan. will not come off from the paper pan, and when assembling the feed roller into the paper pan, insert the shaft end of the feed roller into the shaft support of the paper pan.
It is only necessary to fit the bearing member between the shaft end and the shaft support, and the configuration is extremely simple, allowing for easy disassembly and assembly.Moreover, the feed roller does not come off from the paper pan under normal handling conditions. Never happened.
（実施例）
以下に、図面に基づいて本発明の実施例を詳細かつ具体
的に説明する。(Example) Examples of the present invention will be described below in detail and specifically based on the drawings.
第１図〜第３図は本発明の一実施例を示す。これらの図
において、１１はペーパーパン１２に一体成形され、フ
ィードローラ軸４をそれぞれ軸支させる軸支部であり、
軸支部１１にはそのガイド面２Ｃ側に切欠き溝１３が形
成されていて、これらの切欠き溝１３を介してフィード
ローラ軸４の軸端を軸支部１１にそれぞれ落し込むこと
ができる。１４は、軸支部１１にベーパーパン１２の外
方から嵌合可能な軸受部材であり、軸受部材１４は第１
図の矢印Ｃで示す方向から軸支部１１にそれぞれ嵌め込
み可能であってその嵌め込むときにフィードローラ軸４
の軸端部を軸受部材１４に差込むようにして軸支状態と
することができる。1 to 3 show an embodiment of the present invention. In these figures, reference numeral 11 denotes a shaft support that is integrally molded with the paper pan 12 and supports the feed roller shaft 4, respectively.
The shaft support 11 has cutout grooves 13 formed on its guide surface 2C side, and the shaft ends of the feed roller shafts 4 can be respectively dropped into the shaft support 11 through these notch grooves 13. 14 is a bearing member that can be fitted to the shaft support 11 from the outside of the vapor pan 12;
It can be fitted into the shaft support 11 from the direction shown by arrow C in the figure, and when it is fitted, the feed roller shaft 4
By inserting the shaft end portion of the shaft into the bearing member 14, the shaft end can be placed in a pivotally supported state.
第２Ａ図、第２Ｂ図および第３図は上述のようにしてフ
ィードローラ軸端部が軸受部材１４に軸支された状態を
示す。2A, 2B, and 3 show a state in which the end portion of the feed roller shaft is supported by the bearing member 14 as described above.
すなわち、フィードローラ軸４の軸端部には第２Ｂ図に
示すように、周囲に溝４Ａが周設されており、軸受部材
１４の方にも溝４Ａに対応して突起部１４Ａが周設され
ているので、これら双方をプレスフィツトすることによ
り、軸受部材１４とフィードローラ軸端とは通常の使用
状態では抜は出すことがない。また、軸受部材１４の外
径が切欠き溝１３の溝幅ｆより十分に大ぎいので軸受部
材１４が切欠き溝１３からとび出すごともない。That is, as shown in FIG. 2B, the shaft end of the feed roller shaft 4 is provided with a groove 4A around its periphery, and the bearing member 14 is also provided with a protrusion 14A corresponding to the groove 4A. Therefore, by press-fitting both of them, the bearing member 14 and the end of the feed roller shaft will not come out during normal use. Further, since the outer diameter of the bearing member 14 is sufficiently larger than the groove width f of the notch groove 13, the bearing member 14 does not protrude from the notch groove 13.
第４図は本発明の他の実施例を示す。ここで、１５は軸
受部材であり、本例の軸受部材１５にはその一端に係止
突起部１５Ａが突設されている。FIG. 4 shows another embodiment of the invention. Here, 15 is a bearing member, and the bearing member 15 of this example has a locking protrusion 15A projecting from one end thereof.
そこで、本図に示すように矢印Ｃの方向から軸支部１１
に向けて軸受部材１５を圧入したときに、その係止突起
部１５Ａが切欠ぎ溝１３の係合端部１３Ａによフて係止
され、しかも先に第３図で示した例と同様に切欠き溝１
３の幅ｆより軸受部１５の径が大きいので、フィードロ
ーラ軸４が軸支部１１から抜は出すようなことがない。Therefore, as shown in this figure, from the direction of arrow C, the shaft support 11
When the bearing member 15 is press-fitted in the direction of Notch groove 1
Since the diameter of the bearing portion 15 is larger than the width f of the feed roller shaft 4, the feed roller shaft 4 will not be pulled out from the shaft support 11.
また、フィードローラ軸４を取外すときは係合されてい
る部分をこじるようにして軸支部１１から軸受部材１５
を外方に引出せばよい。なお、以上の例で述べてきた軸
受部材１４や１５はいずれもモールド成形品として形成
されればよく、特別に高価な材料を使用する必要はない
。In addition, when removing the feed roller shaft 4, pry the engaged portion to separate the shaft support 11 from the bearing member 15.
Just pull it outward. Note that the bearing members 14 and 15 described in the above examples may be formed as molded products, and there is no need to use particularly expensive materials.
（発明の効果）
以上説明してきたように、本発明によれば、ペーパーパ
ンの軸支部とフィードローラ軸との間に軸受部材を介装
し、この軸受部材を上記軸支部およびフィードローラ軸
のうち少なくとも軸支部に係止可能なようにしたので、
ジャム発生時の後処理や清掃のためにペーパーパンをプ
ラテンから例外したりする場合にあってもフィードロー
ラがペーパーパンの軸支部から外れたりするようなこと
がなく、また、常に正確に軸支部に支持され廉価な構成
で信頼度の高いシート送り装置を提供することができる
。更にまた、上記のような軸支部をペーパーパンと一体
構成することが可能であり、ベーパーパン本体の材質と
して特に高価な軸受用の材料を用いる必要がなく、廉価
なモールド材で形成することができる。(Effects of the Invention) As described above, according to the present invention, a bearing member is interposed between the shaft support of the paper pan and the feed roller shaft, and this bearing member is inserted between the shaft support and the feed roller shaft. At least we made it possible to lock it to the shaft support, so
Even when removing the paper pan from the platen for post-processing or cleaning in the event of a jam, the feed roller will not come off the shaft support of the paper pan, and the shaft support will always remain accurate. Accordingly, it is possible to provide a highly reliable sheet feeding device with an inexpensive configuration and support. Furthermore, it is possible to integrally configure the above-mentioned shaft support with the paper pan, and there is no need to use a particularly expensive material for bearings as the material for the vapor pan body, and it can be formed from an inexpensive molding material. can.
第１図は本発明シート送り装置の構成の一例を分解して
示す斜視図、
第２Ａ図および第２Ｂ図は第１図のＡ−Ａ線断面図およ
びその部分拡大図、
第３図は第１図のＢ−Ｂ線断面図、
第４図は本発明の他の実旅例の構成を示す断面図、
第５図は従来のシート送り装置の構成の一例を分解して
示す斜視図である。
１・・・プラテン、
２．１２・・・ペーパーパン、
２Ｃ・・・ガイド面、
３・・・フィードローラ、
４・・・フィードローラ軸、
４Ａ・・・溝、
５・・・装着孔、
８・・・フィードレバー、
１０・・・引張りばね、
１！・・軸支部、
１３・・・切欠き溝、
１３Ａ・・・係合端部、
１４．１５・・・軸受部材、
１４Ａ・・・突起部、
１５Ａ・・・係止突起部。
く
ζり
派
第３図
第５図FIG. 1 is an exploded perspective view showing an example of the structure of the sheet feeding device of the present invention, FIGS. 2A and 2B are a sectional view taken along the line A-A in FIG. 1 and a partially enlarged view thereof, and FIG. FIG. 4 is a sectional view showing the configuration of another practical example of the present invention, and FIG. 5 is an exploded perspective view showing an example of the configuration of a conventional sheet feeding device. be. 1...Platen, 2.12...Paper pan, 2C...Guide surface, 3...Feed roller, 4...Feed roller shaft, 4A...Groove, 5...Mounting hole, 8...Feed lever, 10...Tension spring, 1! ... Pivot support, 13... Notch groove, 13A... Engaging end, 14.15... Bearing member, 14A... Projection, 15A... Locking projection. Kuzuri-ha Figure 3 Figure 5
Claims (1)
パンと、前記プラテンに圧接して前記記録シートをシー
ト送りするフィードローラとを有し、該フィードローラ
の軸を前記ペーパーパンに設けた軸支部に軸支させるよ
うにしたシート送り装置において、 前記フィードローラの軸と前記軸支部との間に軸受部材
を介装し、 当該軸受部材を前記軸支部および前記フィードローラ軸
のうち少なくとも軸支部に係止可能なようにしたことを
特徴とするシート送り装置。[Scope of Claims] A paper pan for guiding a recording sheet along a platen, and a feed roller for feeding the recording sheet by pressing against the platen, the shaft of the feed roller being connected to the paper pan. In the sheet feeding device, a bearing member is interposed between the shaft of the feed roller and the shaft support, and the bearing member is connected to the shaft support of the feed roller and the feed roller shaft. A sheet feeding device characterized in that it can be locked to at least a shaft support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10002887A JPS63265671A (en) | 1987-04-24 | 1987-04-24 | Paper feed apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10002887A JPS63265671A (en) | 1987-04-24 | 1987-04-24 | Paper feed apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63265671A true JPS63265671A (en) | 1988-11-02 |
Family
ID=14263081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10002887A Pending JPS63265671A (en) | 1987-04-24 | 1987-04-24 | Paper feed apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63265671A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0864434A2 (en) * | 1997-03-11 | 1998-09-16 | Hewlett-Packard Company | Printer drive roller with grit-blasted surface, and bearing mounting technique |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6023074A (en) * | 1983-07-19 | 1985-02-05 | Kyushu Matsushita Denki Kk | Paper delivery apparatus of printer |
| JPS62222869A (en) * | 1986-03-26 | 1987-09-30 | Ricoh Co Ltd | Paper feed mechanism of printer |
-
1987
- 1987-04-24 JP JP10002887A patent/JPS63265671A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6023074A (en) * | 1983-07-19 | 1985-02-05 | Kyushu Matsushita Denki Kk | Paper delivery apparatus of printer |
| JPS62222869A (en) * | 1986-03-26 | 1987-09-30 | Ricoh Co Ltd | Paper feed mechanism of printer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0864434A2 (en) * | 1997-03-11 | 1998-09-16 | Hewlett-Packard Company | Printer drive roller with grit-blasted surface, and bearing mounting technique |
| EP0864434A3 (en) * | 1997-03-11 | 1998-10-28 | Hewlett-Packard Company | Printer drive roller with grit-blasted surface, and bearing mounting technique |
| US5882131A (en) * | 1997-03-11 | 1999-03-16 | Hewlett-Packard Company | Printer drive roller with grit-blasted surface |
| US6082002A (en) * | 1997-03-11 | 2000-07-04 | Hewlett-Packard Company | Printer device roller with grit-blasted surface, and bearing mounting technique |
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