JPH0211382Y2 - - Google Patents
Info
- Publication number
- JPH0211382Y2 JPH0211382Y2 JP1984107526U JP10752684U JPH0211382Y2 JP H0211382 Y2 JPH0211382 Y2 JP H0211382Y2 JP 1984107526 U JP1984107526 U JP 1984107526U JP 10752684 U JP10752684 U JP 10752684U JP H0211382 Y2 JPH0211382 Y2 JP H0211382Y2
- Authority
- JP
- Japan
- Prior art keywords
- main body
- band
- rotating shaft
- roller
- attached
- 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
Links
- 230000000295 complement effect Effects 0.000 claims 1
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
Landscapes
- Sheets, Magazines, And Separation Thereof (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
Description
【考案の詳細な説明】
＜産業上の利用分野＞
本考案は複写機等の例えばカセツト内に積層さ
れるシート紙を給送する為の給紙ローラに関す
る。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a paper feed roller for feeding sheet paper stacked in a cassette of a copying machine or the like.
＜従来の技術＞
一般に複写機等に用いる複写機としては予め所
定サイズに切断されたシート紙が用いられ、通常
はカセツト内に積層されて複写機内に装填され
る。複写機の給紙部にはカセツト内の最上のシー
ト紙と対向する位置に給紙ローラが配置され、該
ローラが適宜に回転して最上のシート紙のみを給
送する。この給紙ローラの一つとして例えば実開
昭53−142344号に示されるように、断面半円形状
のローラを用い、待機時はローラがシート紙に接
触せずに、ローラ駆動時にのみローラの円弧面が
シート紙に接触する構成が知られる。かかるロー
ラはカセツトの挿入挿出時に給紙ローラをシート
紙から離間する為の従来必須であつた構成を必要
とせず、給紙部の構成を簡便にすることができる
という利点がある。<Prior Art> Copying machines generally use sheets of paper that have been cut into predetermined sizes, and are usually stacked in a cassette and loaded into the copying machine. A paper feed roller is disposed in the paper feed section of the copying machine at a position facing the top sheet of paper in the cassette, and the roller rotates appropriately to feed only the top sheet of paper. As shown in Utility Model Application Publication No. 53-142344, for example, a roller with a semicircular cross section is used as one of the paper feed rollers, and the roller does not contact the sheet paper during standby, but only when the roller is driven. A configuration is known in which an arcuate surface contacts a sheet of paper. Such a roller does not require the conventional configuration for separating the paper feed roller from the sheet paper when inserting/extracting the cassette, and has the advantage that the structure of the paper feed section can be simplified.
＜考案の解決すべき問題点＞
しかしながら一方、かかるローラにあつては、
その円弧面が摩耗した場合直ちに使用に耐えられ
てないという問題を有する。この為摩耗時にあつ
てはローラの即時の交換を要求されるが、従来に
あつてはローラは回転軸に対して軸方向から挿入
され該軸にしつかりと固定される構造であつた
為、ローラの摩耗時には回転軸を取外し、次いで
ローラを交換するという繁雑な作業を必要とし
た。<Problems to be solved with the invention> However, on the other hand, regarding such a roller,
There is a problem in that when the arcuate surface wears out, it immediately becomes unusable. For this reason, when the roller wears out, it is required to immediately replace the roller, but in the past, the roller was inserted into the rotating shaft from the axial direction and was firmly fixed to the shaft, so the roller When the rollers wore out, it was necessary to remove the rotating shaft and then replace the rollers, which was a complicated process.
それ故、本考案は交換の容易な且つ経済的に優
れた給紙ローラを提供することを目的とする。 Therefore, an object of the present invention is to provide a paper feed roller that is easy to replace and is economically superior.
＜問題点を解決する為の手段＞
上記問題点に鑑みて、本考案は、給紙ローラを
回転軸に対して軸の横方向から着脱自在とし、更
にその表面部分をローラ本体に対して着脱自在な
弾性無端バンド体によつて構成したもので、本体
の一方の側にシート紙を給送する為の略円弧部分
を、又他方の側に回転軸を嵌着する為の軸方向窪
み部分を形成し、他方、バンド体を本体に沿つた
略円弧部分及び窪み部分を有する形状に一体成型
させ、かかる組合せ体においてバンド体の窪み部
分の外側より回転軸を装着するようにしたことを
特徴とする。<Means for Solving the Problems> In view of the above problems, the present invention is such that the paper feed roller is detachable from the rotating shaft in the lateral direction of the shaft, and the surface portion thereof is detachable from the roller body. It is composed of a flexible elastic endless band body, and has a roughly arcuate portion on one side of the main body for feeding sheet paper, and an axially recessed portion on the other side for fitting the rotating shaft. , and the band body is integrally molded into a shape having a substantially circular arc portion along the main body and a recessed portion, and the rotating shaft is attached to the combined body from the outside of the recessed portion of the band body. shall be.
＜作用＞
このような構成により、ローラ表面の摩耗時に
はローラを回転軸の横方向より取り外し、次いで
バンド体のみを交換し、再びバンド体交換時のロ
ーラを回転軸に取り付けることにより新規なロー
ラとの交換が行われる。<Function> With this configuration, when the roller surface wears out, the roller can be removed from the lateral direction of the rotating shaft, then only the band body can be replaced, and the roller used for replacing the band body can be reattached to the rotating shaft to replace the roller with a new one. will be exchanged.
＜実施例＞
以下、本考案の実施例を図面を参照として説明
する。<Example> Hereinafter, an example of the present invention will be described with reference to the drawings.
第１図は本考案による給紙ローラを複写機等の
カセツト内のシート紙給送用として用いる場合の
態様を示すもので、図中符号１は複写機内に適宜
に装着されたカセツトであり、その内部には複数
のシート紙２が積層されている。 FIG. 1 shows a mode in which the paper feed roller according to the present invention is used for feeding sheet paper in a cassette of a copying machine, etc. In the figure, reference numeral 1 indicates a cassette appropriately installed in the copying machine. A plurality of sheets of paper 2 are stacked inside the paper.
カセツト内の最上のシート紙と対向するように
複写機の固定部分に対して、回転軸３が回転自在
に且つ作動時には適当な駆動装置により矢印Ａで
示す方向に回転するように設けられている。回転
軸３はこの例では断面四角形状であるが、これに
限定されるものではない。 A rotary shaft 3 is rotatably mounted on a fixed part of the copying machine so as to face the topmost sheet of paper in the cassette, and is rotated in the direction indicated by arrow A by a suitable drive device during operation. . Although the rotating shaft 3 has a rectangular cross section in this example, it is not limited to this.
給紙ローラは全体を符号４で示され、回転軸３
に対し、取り外し可能に設けられている。給紙ロ
ーラ４は、第２図に特に示されるように、その本
体５と、本体５の周囲に取り外し自在に取り付け
られる無端バンド体６を含み、バンド体は例えば
ゴム又は合成樹脂等の弾性体により一体成形され
ている。本体５はその一方の側を回転軸を中心と
した略円弧状部分７とし、且つ他方の側に回転軸
３を嵌合するようにその形状に合致した軸方向窪
み部分８を有し、例えば合成樹脂により作製され
ている。略円弧状部分７はその軸線方向両端側に
半径方向外方に突出したフランジ部分９が形成さ
れており、後述するバンド体の装着時にバンド体
の軸線方向の移動、即ちずれを防止する。略円弧
状部分７の他方の側はこの例では直線状に形成さ
れているがこれに限定されない。窪み部分８はそ
の軸線方向両端側部分が回転軸とほぼ一致する寸
法形状より成り、その一方の側には軸線方向外方
に伸びた支持部分１０を有し、支持部分１０の内
面によつて主として回転軸を支持する。支持部分
１０の底壁にはねじ係合用の溝部分１１が形成さ
れ、溝部分１１を介して回転軸のねじ穴１２（第
３図参照）にねじ１３を螺合することにより、給
紙ローラを回転軸に固定することができる。一
方、窪み部分８の軸線方向中央部分は後述するバ
ンド体６の厚さとほぼ等しい値だけ更に窪んでお
り、バンド体の装着時にはバンド体の内面と支持
部分の内面とがほぼ一致するように構成されてい
る。尚、窪み部分の反対側の本体５の部分には軸
方向溝部分１４が形成されている（第１図）。 The paper feed roller is designated as a whole by reference numeral 4, and has a rotating shaft 3.
However, it is removably provided. As particularly shown in FIG. 2, the paper feed roller 4 includes a main body 5 and an endless band 6 that is removably attached around the main body 5, and the band is made of an elastic material such as rubber or synthetic resin. It is integrally molded. The main body 5 has a substantially arc-shaped portion 7 centered on the rotation axis on one side, and an axial recessed portion 8 matching the shape of the rotation axis 3 on the other side, for example. It is made of synthetic resin. The generally arcuate portion 7 has flange portions 9 formed on both axial end sides thereof that protrude outward in the radial direction, and prevents the band member from moving in the axial direction, that is, shifting when the band member is attached, which will be described later. Although the other side of the substantially arcuate portion 7 is formed into a straight line in this example, it is not limited thereto. The recessed portion 8 has a size and shape that substantially coincides with the rotational axis at both end portions in the axial direction, and has a supporting portion 10 extending outward in the axial direction on one side thereof, and is supported by the inner surface of the supporting portion 10. Mainly supports the rotating shaft. A groove portion 11 for screw engagement is formed in the bottom wall of the support portion 10, and by screwing a screw 13 into a screw hole 12 (see FIG. 3) of the rotating shaft through the groove portion 11, the paper feed roller can be fixed to the rotating shaft. On the other hand, the central part in the axial direction of the recessed portion 8 is further recessed by a value approximately equal to the thickness of the band body 6, which will be described later, so that when the band body is attached, the inner surface of the band body and the inner surface of the support portion approximately coincide with each other. has been done. Incidentally, an axial groove portion 14 is formed in the portion of the main body 5 on the opposite side of the recessed portion (FIG. 1).
バンド体６は無端状よりなり、本体５の略円弧
部分７とほぼ一致した又はわずかに小径の略円弧
部分１５と、窪み部分８と合致する窪み部分１６
とを有する。略円弧部分１５の外周面には複数の
溝１７が形成され、他方その内側には本体の溝部
分１４と係合する突出部分１８を有する。 The band body 6 has an endless shape, and has a substantially circular arc portion 15 that substantially matches the substantially circular arc portion 7 of the main body 5 or has a slightly smaller diameter, and a recessed portion 16 that matches the recessed portion 8.
and has. A plurality of grooves 17 are formed on the outer circumferential surface of the substantially arcuate portion 15, and a protruding portion 18 that engages with the groove portion 14 of the main body is provided on the inside thereof.
このようなバンド体６および本体５の形状によ
り、バンド体６はその窪み部分１６を本体５の窪
み部分８に、突出部分１８を本体の溝部分１４に
それぞれ合致させた状態で本体に装着される。 Due to the shapes of the band body 6 and the main body 5, the band body 6 is attached to the main body with its recessed portion 16 aligned with the recessed portion 8 of the main body 5, and the protruding portion 18 aligned with the grooved portion 14 of the main body. Ru.
この装着はバンド体６の弾性により本体６に確
実に合致し、好都合に行なわれる。 This attachment is conveniently carried out because the elasticity of the band body 6 ensures that it matches the main body 6.
こうした構成の供給ローラの回転軸への固定は
バンド体６の窪み部分１６の外側から回転軸該部
分１６及び支持部分１０内に嵌合させ、次いでね
じ１３により支持部分１０を回転軸に対して螺
合、締め付けることにより行われる。 The supply roller having such a configuration is fixed to the rotating shaft by fitting it into the rotating shaft 16 and the supporting portion 10 from the outside of the recessed portion 16 of the band body 6, and then fixing the supporting portion 10 to the rotating shaft with the screw 13. This is done by screwing and tightening.
このような給紙ローラは前記従来の技術で述べ
たように作動時にその円弧部分がシート紙面と接
触して給紙を行い、待機時には軸取り付け側がシ
ート紙面と対向してシート紙とは離間状態を保
つ。 As described in the above-mentioned conventional technology, when the paper feed roller is in operation, its arcuate portion comes into contact with the paper sheet surface to feed the paper, and when it is on standby, the shaft-mounted side faces the sheet paper surface and is separated from the sheet paper. keep it.
＜考案の効果＞
以上の構成により、本考案によれば、給紙ロー
ラの表面摩耗時には回転軸自体は取り外すことな
く給紙ローラのみを取り外すことができるもの
で、しかもその表面部分、即ちバンド体のみを交
換するだけで新しい表面を得ることができ、交換
が容易であり、かつ経済的であるという利点を有
する。<Effects of the invention> With the above configuration, according to the invention, when the surface of the paper feed roller wears out, only the paper feed roller can be removed without removing the rotating shaft itself, and the surface portion, that is, the band body, can be removed. A new surface can be obtained by simply replacing only one part, which has the advantage of being easy and economical to replace.
第１図は本考案による給紙ローラの使用態様を
示す断面側面図、第２図は本考案による給紙ロー
ラの分解斜視図、第３図は給紙ローラの回転軸へ
の取り付け状態を示す斜視図である。
２…シート紙、３…回転軸、４…給紙ローラ、
５…本体、６…バンド体、８，１６…窪み部分、
７，１５…略円弧部分。
Fig. 1 is a cross-sectional side view showing how the paper feed roller according to the present invention is used, Fig. 2 is an exploded perspective view of the paper feed roller according to the present invention, and Fig. 3 shows how the paper feed roller is attached to the rotating shaft. FIG. 2... Sheet paper, 3... Rotating shaft, 4... Paper feed roller,
5... Main body, 6... Band body, 8, 16... Recessed part,
7, 15...Substantially arcuate portion.
Claims (1)
この切り欠いた部分に回転軸を嵌合可能な軸方向
窪み部分を有する本体と、該本体に対して取り外
し可能に装着されたバンド体と、を含む給紙ロー
ラにおいて、前記本体はその円弧部分の一部に軸
線方向の溝部分を有すると共に円弧部分の両縁に
沿つて半径方向外方に突出したフランジ部分を有
しており、前記バンド体は前記本体の周方向外形
に沿つて前記円弧部分、溝部分および窪み部分と
相補する形状を有する一体成形された無端の弾性
体より成り、バンド体を前記本体のフランジ部分
の間でバンド体自身の弾性により前記本体に密着
して装着し、この装着したバンド体の外側からバ
ンド体の窪み部分に前記回転軸を嵌合し、回転軸
に着脱自在に取り付ける構成とした給紙ローラ。 A main body having a cross-sectional shape with a part of the circumference cut out and having an axial recess into which a rotating shaft can be fitted, and a band body removably attached to the main body. , the main body has an axial groove portion in a part of the arc portion thereof, and a flange portion protruding outward in the radial direction along both edges of the arc portion, The band body is composed of an integrally molded endless elastic body having a shape complementary to the circular arc portion, groove portion, and recessed portion along the circumferential outer shape of the main body, and the band body is formed as a band between the flange portions of the main body. A paper feeding roller configured to be attached tightly to the main body due to its own elasticity, and to be detachably attached to the rotating shaft by fitting the rotating shaft into a recessed part of the band body from the outside of the attached band member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10752684U JPS6125339U (en) | 1984-07-18 | 1984-07-18 | Paper feed roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10752684U JPS6125339U (en) | 1984-07-18 | 1984-07-18 | Paper feed roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6125339U JPS6125339U (en) | 1986-02-15 |
| JPH0211382Y2 true JPH0211382Y2 (en) | 1990-03-22 |
Family
ID=30666749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10752684U Granted JPS6125339U (en) | 1984-07-18 | 1984-07-18 | Paper feed roller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6125339U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5173933B2 (en) * | 2009-05-22 | 2013-04-03 | 日立オムロンターミナルソリューションズ株式会社 | Card processing device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5532061A (en) * | 1978-08-29 | 1980-03-06 | Canon Inc | Sheet feeder |
| JPS57141328A (en) * | 1981-02-25 | 1982-09-01 | Canon Inc | Sheet feeder |
-
1984
- 1984-07-18 JP JP10752684U patent/JPS6125339U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5532061A (en) * | 1978-08-29 | 1980-03-06 | Canon Inc | Sheet feeder |
| JPS57141328A (en) * | 1981-02-25 | 1982-09-01 | Canon Inc | Sheet feeder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6125339U (en) | 1986-02-15 |
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