JPH0613162Y2 - Paper guide structure of paper feeder - Google Patents
Paper guide structure of paper feederInfo
- Publication number
- JPH0613162Y2 JPH0613162Y2 JP1988022887U JP2288788U JPH0613162Y2 JP H0613162 Y2 JPH0613162 Y2 JP H0613162Y2 JP 1988022887 U JP1988022887 U JP 1988022887U JP 2288788 U JP2288788 U JP 2288788U JP H0613162 Y2 JPH0613162 Y2 JP H0613162Y2
- Authority
- JP
- Japan
- Prior art keywords
- paper
- guide
- guide surface
- paper guide
- feeding device
- 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
Landscapes
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Registering Or Overturning Sheets (AREA)
Description
【考案の詳細な説明】 ［考案の目的］ （産業上の利用分野） 本考案は記録装置などに設けられた送紙装置に取り付け
られ、走行する用紙の幅方向の位置決めを行なう紙ガイ
ド構造に係り、特に用紙の紙ガイドへの押圧による位置
ずれを防止することのできる紙ガイドの断面形状に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention has a paper guide structure which is attached to a paper feeding device provided in a recording device or the like and positions the traveling paper in the width direction. In particular, the present invention relates to a cross-sectional shape of a paper guide that can prevent positional displacement due to pressing of a paper against the paper guide.
（従来の技術） 送紙装置は一般に第８図に示すように構成されている。
すなわち、滑り板１の案内面２上にロール紙などの用紙
３が走行可能に載置されており、この用紙３は滑り板１
に設けられた駆動ローラ４と加圧ローラ５との間に挟持
され、駆動ローラ４の回転により案内面２に案内されて
走行駆動される。これらの駆動ローラ４と加圧ローラ５
とは図示のように２対である場合もあり、１対または複
数対の場合もある。また前記案内面２上には用紙３の幅
方向の位置を規制して用紙３を安定して走行させるため
に、案内面２に対して直角にかつ用紙３のサイズに合わ
せて位置調整可能に紙ガイド６が設けられている。(Prior Art) A paper feeding device is generally configured as shown in FIG.
That is, a sheet 3 such as roll paper is movably placed on the guide surface 2 of the slide plate 1, and the sheet 3 is attached to the slide plate 1.
It is sandwiched between the drive roller 4 and the pressure roller 5 provided on the drive roller 4, and is driven and guided by the guide surface 2 by the rotation of the drive roller 4. These drive roller 4 and pressure roller 5
May be two pairs as shown, or may be one pair or a plurality of pairs. Further, on the guide surface 2, the position of the paper 3 in the width direction is regulated so that the paper 3 can travel stably, so that the position can be adjusted at right angles to the guide surface 2 and according to the size of the paper 3. A paper guide 6 is provided.
この紙ガイド６は従来は第９図に示すように、用紙３が
当接する面７が前記案内面２に対して直角の平面で形成
されていた。そして用紙３は前記ローラ４，５により軽
い力で紙ガイド６の当接面７に押し当てられながら走行
していた。しかしながら駆動ローラ４、加圧ローラ５の
軸方向の僅かな変位や、図示せぬガイドローラやバック
テンション付加部材の変位などにより、用紙３が紙ガイ
ド６に対して押圧される力が用紙３の耐力を超えること
がある。この結果用紙３が座屈したり、湾曲して滑り板
１の案内面２から浮き上ったりして、用紙３の紙ガイド
６によって規制される基準位置がずれてしまうという問
題があった。この用紙３の湾曲の方向は下面は滑り板１
に支持されているので浮き上る方向となる。In the conventional paper guide 6, as shown in FIG. 9, a surface 7 on which the paper 3 abuts is formed as a plane perpendicular to the guide surface 2. Then, the paper 3 was running while being pressed against the contact surface 7 of the paper guide 6 by the rollers 4 and 5 with a light force. However, due to a slight axial displacement of the drive roller 4 and the pressure roller 5, displacement of a guide roller and a back tension adding member (not shown), the force of pressing the paper 3 against the paper guide 6 is applied to the paper 3. The yield strength may be exceeded. As a result, there is a problem in that the paper 3 buckles or curves and rises above the guide surface 2 of the slide plate 1, and the reference position of the paper 3 regulated by the paper guide 6 is displaced. The lower surface of the paper 3 is curved to the sliding plate 1
Since it is supported by, it will be in the direction of rising.
（考案が解決しようとする課題） 上述したように従来の送紙装置の紙ガイド６によると、
紙ガイド６の用紙３と当接する当接面７が案内面２に対
して直角な平面であったため、用紙３が紙ガイド６に耐
力以上の力で押し付けられると座屈や浮上が発生し、用
紙３を案内する基準位置がずれるという問題があった。(Problems to be Solved by the Invention) As described above, according to the paper guide 6 of the conventional paper feeding device,
Since the contact surface 7 of the paper guide 6 that contacts the paper 3 is a plane perpendicular to the guide surface 2, when the paper 3 is pressed against the paper guide 6 with a force greater than the proof stress, buckling or levitation occurs. There is a problem that the reference position for guiding the paper 3 is displaced.
本考案は上記事情に鑑みてなされたものであり、用紙の
紙ガイドへの押圧力による座屈や浮上の発生を防止し
て、用紙を安定して走行させることのできる送紙装置の
紙ガイド構造を提供することを目的とする。The present invention has been made in view of the above circumstances, and prevents the occurrence of buckling or floating of a sheet due to the pressing force of the sheet against the sheet guide, and allows the sheet to stably travel. It is intended to provide a structure.
［考案の構成］ （課題を解決するための手段） 本考案は上記目的を達成するために、駆動手段により案
内面に沿って走行駆動される用紙の側端面に当接して、
該用紙の位置決めを行なうため、前記案内面にほぼ直角
に取り付けられた送紙装置の紙ガイド構造において、該
紙ガイドの紙押付部が前記案内面に当接する近傍、また
は前記案内面が前記紙押付部に当接する近傍に、前記用
紙をたわませる傾斜面または段部を形成したものであ
る。[Means for Solving the Problems] (Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention contacts a side end surface of a sheet driven and driven by a driving means along a guide surface,
In order to position the paper, in the paper guide structure of the paper feeding device attached to the guide surface at substantially right angles, in the vicinity of the paper pressing portion of the paper guide contacting the guide surface, or the guide surface is the paper. An inclined surface or a step portion for bending the sheet is formed in the vicinity of contacting the pressing portion.
（作用） 上記の手段によると、案内面上を走行する用紙の側端面
は紙ガイドの傾斜面または段部と垂直部との境界部に当
接して位置決めされる。また用紙を紙ガイドに押圧する
力が大きくなっても、用紙側端部は傾斜面または段部に
支持されていて滑り板の案内面方向に凸の状態に湾曲さ
れているため、用紙は案内面から浮く方向へはたわまな
い。従って用紙の側端部は大きな押圧力に耐えることが
でき安定した位置決め走行が可能となる。(Operation) According to the above means, the side end surface of the sheet traveling on the guide surface is positioned by contacting the inclined surface of the paper guide or the boundary portion between the step portion and the vertical portion. Even if the force that presses the paper against the paper guide increases, the paper-side end is supported by an inclined surface or step and curved in a convex state toward the guide surface of the slide plate, so the paper is guided. It does not bend in the direction that floats from the surface. Therefore, the side edge of the sheet can withstand a large pressing force, and stable positioning traveling is possible.
（実施例） 以下、本考案に係る送紙装置の紙ガイド構造の一実施例
を図面を参照して説明する。(Embodiment) An embodiment of the paper guide structure of the paper feeding apparatus according to the present invention will be described below with reference to the drawings.
第１図に本考案の一実施例による紙ガイドの断面形状を
示す。図において第９図に示す従来例と同一または同等
部分には同一符号を付して示し、送紙装置本体は第８図
に示す従来例と同様であるので図示及び説明を省略す
る。本実施例の特徴は紙ガイド６の断面形状にあり、紙
ガイド６は滑り板１の案内面２に直角に立設された紙押
付部６ａと、紙ガイド６の基部に形成され案内面２に対
して傾斜した斜面を有する紙支持部６ｂとからなってい
る。この斜面は２辺が約１mmの45度の傾斜角で形成され
ている。FIG. 1 shows a sectional shape of a paper guide according to an embodiment of the present invention. In the figure, the same or equivalent parts as those of the conventional example shown in FIG. 9 are designated by the same reference numerals, and the main body of the paper feeding device is the same as that of the conventional example shown in FIG. The feature of this embodiment is the cross-sectional shape of the paper guide 6. The paper guide 6 has a paper pressing portion 6a which is erected at a right angle to the guide surface 2 of the slide plate 1 and a guide surface 2 formed at the base of the paper guide 6. And a paper support portion 6b having a slanted surface. This slope is formed with an inclination angle of 45 degrees with two sides of about 1 mm.
次に本実施例の作用を説明する。用紙３は第８図に示す
ように矢印Ａ方向に走行し、このとき用紙３は従来例と
同様に軽い力で紙ガイド６の当接面７に押し付けられて
いる。用紙３の側端面は紙ガイド６の紙押付部６ａと紙
支持部６ｂの境界部において紙押付部６ａに当接して位
置決めされ、用紙３の側端部近傍は紙支持部６ｂに支持
されて、滑り板１の方向に凸の状態に湾曲されている。
このとき前述したような原因により用紙３が紙押付部６
ａに押圧される力が増大したとき、用紙３は上記のよう
に湾曲されているため滑り板１から浮く方向へはたわま
ず、さらに滑り板１の方向にたわもうとする力が生じ
る。この力は紙支持部６ｂ及び滑り板１の案内面２で支
持されるため、用紙３はその形態を保つことができ、座
屈や浮上の発生を防止することができる。この結果、大
きな押圧力が用紙３にかかっても、用紙３は正しく位置
決めされ安定して走行することができる。Next, the operation of this embodiment will be described. The paper 3 travels in the direction of arrow A as shown in FIG. 8, and at this time, the paper 3 is pressed against the contact surface 7 of the paper guide 6 with a light force as in the conventional example. The side end surface of the paper 3 is positioned by contacting the paper pressing portion 6a at the boundary between the paper pressing portion 6a and the paper supporting portion 6b of the paper guide 6, and the vicinity of the side end portion of the paper 3 is supported by the paper supporting portion 6b. It is curved so as to be convex in the direction of the sliding plate 1.
At this time, the paper 3 is pressed by the paper pressing portion 6 due to the above-mentioned causes.
When the force pressed by a increases, the sheet 3 is curved as described above, so that the sheet 3 does not bend in the direction in which it floats above the sliding plate 1, and a force that tries to bend in the direction of the sliding plate 1 is generated. . Since this force is supported by the paper support portion 6b and the guide surface 2 of the sliding plate 1, the form of the paper 3 can be maintained, and buckling and floating can be prevented. As a result, even if a large pressing force is applied to the paper 3, the paper 3 is correctly positioned and can travel stably.
上記実施例では紙支持部６ｂに形成された斜面が１ｃの
45度に形成された場合について説明したが、例えば第２
図乃至第６図に示すような他の形状であってもよい。第
２図に示す斜面は断面が曲率半径３mmの円弧状としたも
の、第３図は滑り板１の案内面２側に30度の角度で斜面
２ａを形成したもの、第４図は紙ガイド６が下部に向っ
て拡幅するように紙押付部６ａを傾斜させたもの、第５
図は紙ガイド６の下端に段差部を形成して紙支持部６ｂ
としたもの、第６図は紙押付部６ａと紙支持部６ｂとの
境界部に切込部６ｃを形成して用紙３の側端面を係止す
るようにしたものである。第７図に上記第１図乃至第６
図に示した紙ガイド６のうち第１図、第２図、第３図に
示す各実施例と第９図に示す従来例について、厚さ約80
μｍの用紙３を用いて耐力を測定した実験結果を示す。
図において、(a)は第９図に示す従来例、(b),(c),(d)は
それぞれ第１，２，３図に示す実施例による紙ガイド６
を用いて、それぞれ10回の測定を行なったもので、丸は
平均値を示す。図により明確なように、各実施例による
紙ガイド６は従来例による紙ガイド６より耐力が大きく
なっている。In the above embodiment, the slope formed on the paper support portion 6b is 1c.
The case of forming at 45 degrees has been described, but for example, the second
Other shapes may be used as shown in FIGS. The slope shown in FIG. 2 has an arcuate cross section with a radius of curvature of 3 mm, FIG. 3 shows a slope 2a formed on the guide surface 2 side of the sliding plate 1 at an angle of 30 degrees, and FIG. 4 shows a paper guide. 6 in which the paper pressing portion 6a is inclined so that 6 widens toward the bottom,
The figure shows a stepped portion formed at the lower end of the paper guide 6 and the paper support portion 6b.
In FIG. 6, a cut portion 6c is formed at the boundary between the paper pressing portion 6a and the paper supporting portion 6b so that the side end surface of the paper 3 is locked. FIG. 7 shows the above-mentioned FIGS.
Of the paper guide 6 shown in the figures, the thickness of about 80 is obtained for each of the embodiments shown in FIGS. 1, 2 and 3 and the conventional example shown in FIG.
The experimental result which measured the yield strength using the paper 3 of μm is shown.
In the figure, (a) is a conventional example shown in FIG. 9, and (b), (c), and (d) are paper guides 6 according to the examples shown in FIGS. 1, 2, and 3, respectively.
The values are measured 10 times each, and the circles indicate the average value. As is clear from the figure, the paper guide 6 according to each embodiment has a higher yield strength than the paper guide 6 according to the conventional example.
［考案の効果］ 上述したように本考案によれば、送紙装置の用紙案内面
に取り付けられた紙ガイドの紙押付部が前記案内面に当
接する近傍、または前記案内面が前記紙押付部に当接す
る近傍に、前記用紙をたわませる傾斜面または段部を形
成したので、紙ガイドに対する用紙の押圧力が大きくな
っても座屈や浮上が発生せず、用紙を正しく位置決めし
て安定して走行させることができる。[Advantages of the Invention] As described above, according to the present invention, the paper pressing portion of the paper guide attached to the paper guiding surface of the paper feeding device is in the vicinity of contact with the guide surface, or the guide surface is the paper pressing portion. Since an inclined surface or step portion that bends the paper is formed near the contact with the paper, buckling or floating does not occur even if the pressing force of the paper against the paper guide becomes large, and the paper is positioned correctly and stabilized. Can be run.
第１図は本考案に係る送紙装置の紙ガイドの一実施例を
示す正面図、第２図乃至第６図はそれぞれ本考案の他の
実施例を示す正面図、第７図は本実施例による紙ガイド
を用いた場合の用紙の耐力を従来の紙ガイドによる場合
と比較して示すグラフ、第８図は送紙装置の概略を示す
斜視図、第９図は従来の紙ガイドを示す正面図である。 ２……案内面 ３……用紙 ４，５……ローラ（駆動手段） ６……紙ガイド ６ａ……紙押付部 ６ｂ……紙支持部（傾斜面または段部）FIG. 1 is a front view showing an embodiment of a paper guide of a paper feeding device according to the present invention, FIGS. 2 to 6 are front views showing other embodiments of the present invention, and FIG. FIG. 8 is a graph showing the yield strength of the paper in the case of using the paper guide according to the example in comparison with the case of using the conventional paper guide, FIG. 8 is a perspective view showing the outline of the paper feeding device, and FIG. 9 is showing the conventional paper guide. It is a front view. 2 ... Guide surface 3 ... Paper 4,5 Rollers (driving means) 6 ... Paper guide 6a ... Paper pressing portion 6b ... Paper support portion (slope or step)
Claims (1)
れる用紙の側端面に当接して該用紙の位置決めを行なう
ため、前記案内面にほぼ直角に取り付けられた送紙装置
の紙ガイド構造において、該紙ガイドの紙押付部が前記
案内面に当接する近傍、または前記案内面が前記紙押付
部に当接する近傍に、前記用紙をたわませる傾斜面また
は段部を形成したことを特徴とする送紙装置の紙ガイド
構造。1. A paper guide structure for a paper feeding device mounted substantially perpendicular to the guide surface for contacting a side end surface of the paper driven and driven by the driving means to position the paper. In the above, the inclined surface or the stepped portion for bending the paper is formed in the vicinity of the paper pressing portion of the paper guide contacting the guide surface or in the vicinity of the guide surface contacting the paper pressing portion. The paper guide structure of the paper feeding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988022887U JPH0613162Y2 (en) | 1988-02-23 | 1988-02-23 | Paper guide structure of paper feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988022887U JPH0613162Y2 (en) | 1988-02-23 | 1988-02-23 | Paper guide structure of paper feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01126348U JPH01126348U (en) | 1989-08-29 |
| JPH0613162Y2 true JPH0613162Y2 (en) | 1994-04-06 |
Family
ID=31241404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988022887U Expired - Lifetime JPH0613162Y2 (en) | 1988-02-23 | 1988-02-23 | Paper guide structure of paper feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0613162Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11348981B2 (en) * | 2019-09-30 | 2022-05-31 | Seiko Epson Corporation | Image light generation device and image display device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10055584B4 (en) * | 1999-12-16 | 2011-04-14 | Heidelberger Druckmaschinen Ag | Device for laterally aligning sheets |
| JP5355306B2 (en) * | 2009-08-31 | 2013-11-27 | キヤノン株式会社 | Sheet conveying apparatus and image forming apparatus |
| JP7135820B2 (en) * | 2018-12-13 | 2022-09-13 | 株式会社リコー | Conveying device and image forming device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3963339A (en) * | 1974-09-05 | 1976-06-15 | Xerox Corporation | Sheet feeding apparatus |
| JPS5542463U (en) * | 1978-09-14 | 1980-03-19 |
-
1988
- 1988-02-23 JP JP1988022887U patent/JPH0613162Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11348981B2 (en) * | 2019-09-30 | 2022-05-31 | Seiko Epson Corporation | Image light generation device and image display device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01126348U (en) | 1989-08-29 |
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