JPH08157086A - Feed roller - Google Patents
Feed rollerInfo
- Publication number
- JPH08157086A JPH08157086A JP33074694A JP33074694A JPH08157086A JP H08157086 A JPH08157086 A JP H08157086A JP 33074694 A JP33074694 A JP 33074694A JP 33074694 A JP33074694 A JP 33074694A JP H08157086 A JPH08157086 A JP H08157086A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- feeding roller
- holding member
- sheet material
- drive shaft
- 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.)
- Granted
Links
Landscapes
- Delivering By Means Of Belts And Rollers (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明はシート材を給送する給送
ローラに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feeding roller for feeding a sheet material.
【0002】[0002]
【従来の技術】従来の、画像形成装置等における給送装
置の給送ローラを図11に示す。この給送ローラは駆動
軸101、給送ローラ102、給紙ローラ102に接着
剤等で貼りつけられているゴム103及び給送ローラ1
02を駆動軸に固定し駆動を伝達するピン溝104で構
成されている。そして、駆動軸101の回転により給送
ローラ102も回転し、給送ローラ102に固定されて
いるゴム103が給送するシート材と当接することで、
シート材との摩擦力でシート材をを給送する。2. Description of the Related Art A conventional feeding roller of a feeding device in an image forming apparatus or the like is shown in FIG. The feeding roller is a drive shaft 101, a feeding roller 102, a rubber 103 attached to the paper feeding roller 102 with an adhesive or the like, and the feeding roller 1.
It is constituted by a pin groove 104 for fixing 02 to the drive shaft and transmitting the drive. The rotation of the drive shaft 101 also rotates the feeding roller 102, and the rubber 103 fixed to the feeding roller 102 comes into contact with the sheet material to be fed,
The sheet material is fed by the frictional force with the sheet material.
【0003】また図12のように環状ゴム105を環状
ゴム105よりも若干径の大きいフランジのついた給送
ローラ106に、環状ゴム105を引きのばして給送ロ
ーラ106にはめ込み環状ゴム105の弾性と摩擦力で
固定するものもある。Further, as shown in FIG. 12, the annular rubber 105 is extended to the feeding roller 106 having a flange having a diameter slightly larger than that of the annular rubber 105, and the annular rubber 105 is extended and fitted into the feeding roller 106. There are also things that are fixed by frictional force.
【0004】[0004]
【発明が解決しようとする課題】しかしながら、上記図
11で示された従来例では、使用によってゴム103の
一部が摩耗した場合でも、ゴム103は給送ローラ10
2に接着剤で固定されている為、ゴム103だけを交換
することはできず給送ローラ102ごと交換しなければ
ならない。また図12の構成の場合ゴム105を給送ロ
ーラ106に装着する場合ゴム105を大きく引きのば
して、給送ローラ106に装着しなければならず組立性
が悪く交換にも手間がかかってしまう。またゴム105
を大きく引きのばすため、ゴム105にひずみが生じ、
ゴム105の性能が悪くなり、給紙不良や耐久性能低下
の原因となる。However, in the conventional example shown in FIG. 11, even if a part of the rubber 103 is worn due to use, the rubber 103 will not be worn by the feeding roller 10.
Since it is fixed to No. 2 with an adhesive, it is not possible to replace only the rubber 103, and the entire feeding roller 102 must be replaced. Further, in the case of the configuration of FIG. 12, when the rubber 105 is attached to the feeding roller 106, the rubber 105 has to be largely stretched and attached to the feeding roller 106, so that the assembling property is poor and the replacement is troublesome. Also rubber 105
Strains in the rubber 105,
The performance of the rubber 105 is deteriorated, which causes a paper feed failure and a decrease in durability performance.
【0005】また、製品の廃棄の際にゴムと樹脂部材と
を分離が困難であるという欠点があった。Further, there is a drawback that it is difficult to separate the rubber and the resin member when the product is discarded.
【0006】本発明は上記従来技術の問題を解決するた
めになされたもので、その目的としては、給送ローラの
ゴムの組立、交換、廃棄時のゴムと樹脂部材の分別を容
易にし、又ゴムにかかるひずみを最小にし給紙性能を向
上させることである。The present invention has been made to solve the above-mentioned problems of the prior art, and an object thereof is to facilitate the assembly and replacement of the rubber of the feeding roller, the separation of the rubber and the resin member at the time of disposal, and It is to improve the paper feeding performance by minimizing the strain on the rubber.
【0007】また給送ローラの使用によってゴムが摩耗
するのはゴムの表面の一部である為、他の部分の摩耗し
ていないゴムを使用することにより、ゴムの寿命を実質
的に向上させることである。Further, it is only a part of the surface of the rubber that the rubber is worn due to the use of the feeding roller. Therefore, by using the rubber which is not worn in the other part, the life of the rubber is substantially improved. That is.
【0008】[0008]
【課題を解決するための手段】上記目的を達成するため
本発明にあっては、シート材と当接する摩擦部材と、こ
の摩擦部材を保持する保持部材と、保持部材を取付けて
駆動する駆動軸とを備えた給送ローラにおいて、前記摩
擦部材は内周面が前記保持部材と当接し、外周面がシー
ト材と当接する環状の可撓性部材であり、この環状の可
撓性部材に張力を与えることで、環状の可撓性部材を前
記保持部材に固定する張力供与部材を備える。In order to achieve the above object, in the present invention, a friction member that comes into contact with a sheet material, a holding member that holds the friction member, and a drive shaft that drives the holding member attached thereto are provided. And a friction member is an annular flexible member whose inner peripheral surface is in contact with the holding member and whose outer peripheral surface is in contact with the sheet material, and tension is applied to the annular flexible member. By providing a tension applying member for fixing the annular flexible member to the holding member.
【0009】前記保持部材と前記駆動軸は相対的に移動
可能に構成され、この保持部材を駆動軸により駆動され
る位置に配置したときに、前記張力供与部材が前記環状
の可撓性部材に張力を与える。The holding member and the drive shaft are configured to be movable relative to each other, and when the holding member is arranged at a position driven by the drive shaft, the tension applying member becomes the annular flexible member. Give tension.
【0010】また、前記張力供与部材は前記保持部材を
取りつける駆動軸であること、前記保持部材を取りつけ
る駆動軸に設けられた係合部材であること、前記保持部
材に張力を与えない位置と張力を与える位置とに移動可
能に設けられた係合部材であることも好ましい。Further, the tension applying member is a drive shaft for attaching the holding member, an engaging member provided on the drive shaft for attaching the holding member, a position at which tension is not applied to the holding member, and a tension. It is also preferable that the engaging member is provided so as to be movable to a position for giving.
【0011】また、シート材と当接する摩擦部材と、こ
の摩擦部材を保持する保持部材と、保持部材を取付けて
駆動する駆動軸とを備えた給送ローラにおいて、前記摩
擦部材は内周面が前記保持部材と当接し、外周面がシー
ト材と当接する環状の可撓性部材であり、この環状の可
撓性部材は内周面または外周面の複数の異なる表面領域
の一つをシート材と当接する面として前記保持部材に係
合可能とすることを特徴とする。Further, in a feeding roller provided with a friction member that comes into contact with a sheet material, a holding member that holds the friction member, and a drive shaft that attaches and drives the holding member, the friction member has an inner peripheral surface. An annular flexible member that abuts the holding member and an outer peripheral surface thereof abuts the sheet material, and the annular flexible member forms one of a plurality of different surface regions of the inner peripheral surface or the outer peripheral surface of the sheet material. The holding member is engageable with the holding member.
【0012】前記環状の可撓性部材にはシート材と当接
する面の位置を前記保持部材と係合して決める位置決め
手段と、シート材と当接する面を表示する表示手段とを
備えたことを特徴とする。The annular flexible member is provided with positioning means for determining the position of the surface contacting the sheet material by engaging with the holding member, and display means for displaying the surface contacting the sheet material. Is characterized by.
【0013】[0013]
【作用】上記のように構成された本発明にあっては、環
状の可撓性部材が張力を発生しないフリー状態で保持部
材の保持部に装着された後に、張力供与部材が環状の可
撓性部材に張力を付与し、保持部材に固定する。In the present invention constructed as described above, after the annular flexible member is attached to the holding portion of the holding member in a free state in which tension is not generated, the tension applying member is annularly flexible. Tension is applied to the flexible member to fix it to the holding member.
【0014】保持部材と駆動軸を相対的に移動可能に構
成したことで、この保持部材を駆動軸により駆動される
位置に配置したときに、前記張力供与部材が前記環状の
可撓性部材に張力を与える。By making the holding member and the drive shaft movable relative to each other, when the holding member is arranged at a position driven by the drive shaft, the tension applying member becomes the annular flexible member. Give tension.
【0015】また、駆動軸自体を張力供与部材とするこ
とで、保持部材を駆動軸に取りつけることや、保持部材
と駆動軸とを相対的に移動可能に構成し、保持部材を駆
動する位置に配置することで、駆動軸が環状の可撓性部
材と当接して、環状の可撓性部材に張力を与える。Further, by using the tension applying member as the driving shaft itself, the holding member can be attached to the driving shaft, or the holding member and the driving shaft can be moved relative to each other so that the holding member can be driven. By disposing the drive shaft, the drive shaft comes into contact with the annular flexible member and applies tension to the annular flexible member.
【0016】また、駆動軸または保持部材に設けられた
係合部材は環状の可撓性部材と当接して、環状の可撓性
部材に張力を与える。Further, the engagement member provided on the drive shaft or the holding member contacts the annular flexible member to apply tension to the annular flexible member.
【0017】また、環状の可撓性部材のシート材と当接
する面を、内周面または外周面の複数の異なる表面領域
の一つとすることで、ある当接する面の代わりにその他
の面を使用することができる。Further, the surface of the annular flexible member that comes into contact with the sheet material is one of a plurality of different surface regions of the inner peripheral surface or the outer peripheral surface, so that the other surface is replaced with another surface. Can be used.
【0018】また可撓性部材にはシート材と当接する面
の位置を前記保持部材と係合して決める位置決め手段
と、シート材と当接する面を表示する表示手段とを備え
たことで今まで使用した当接面からその他の当接面への
変更が確実に行われ、新旧の当接面の識別が可能とな
る。Further, the flexible member is provided with positioning means for determining the position of the surface contacting the sheet material by engaging with the holding member, and display means for displaying the surface contacting the sheet material. It is possible to surely change the contact surface used up to another contact surface, and to identify the old and new contact surfaces.
【0019】[0019]
【実施例】以下に本発明を図示の実施例に基づいて説明
する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to illustrated embodiments.
【0020】(第1実施例)図1は本発明の第1の実施
例の図である。図1において1はモーター(不図示)か
らギア(不図示)を通して駆動される駆動軸、2は駆動
軸1から駆動を受けて回動する給送ローラ、3は給送ロ
ーラ2に取り付けられシート材(図不示)をピックアッ
プする為の環状の可撓性部材としてのゴム、4はローラ
2に取り付けられたゴム3がスラスト方向にズレないよ
うにするフランジ、5はゴム3の位置を決める為の嵌合
窪み、6は駆動軸に嵌合するスナップフィット部、7は
駆動軸1の駆動を給送ローラ2に伝達するピン、8はゴ
ム3の位置決め手段としての位置決め突起、9は給送ロ
ーラ2に装着されたゴム3を押さえてゴム3にテンショ
ンを与え給送ローラ2に固定させる張力供与部材、10
は駆動を伝達するピン7に嵌合する嵌合穴、20はゴム
3をシート材当接させるために保持する保持部材であ
る。(First Embodiment) FIG. 1 is a diagram of a first embodiment of the present invention. In FIG. 1, 1 is a drive shaft driven by a motor (not shown) through a gear (not shown), 2 is a feeding roller that is rotated by being driven by the drive shaft 1, and 3 is a sheet attached to the feeding roller 2. Rubber as an annular flexible member for picking up a material (not shown), 4 is a flange that prevents the rubber 3 attached to the roller 2 from shifting in the thrust direction, and 5 determines the position of the rubber 3. For fitting, 6 is a snap-fit portion fitted to the drive shaft, 7 is a pin for transmitting the drive of the drive shaft 1 to the feeding roller 2, 8 is a positioning protrusion as a positioning means for the rubber 3, and 9 is a feeding member. A tension providing member that presses the rubber 3 mounted on the feeding roller 2 to apply tension to the rubber 3 and fix the rubber 3 to the feeding roller 2.
Is a fitting hole that fits into the pin 7 that transmits the drive, and 20 is a holding member that holds the rubber 3 to abut the sheet material.
【0021】上記構成において、ゴム3を給送ローラ2
の保持部材20にゴム3の位置決め突起8と保持部材2
0上のの嵌合窪み5とが嵌合するように装着し、給送ロ
ーラ2のピン7が駆動軸1の嵌合穴10に嵌合するよう
に給送ローラ2を駆動軸1に取りつける。In the above structure, the rubber 3 is fed to the feeding roller 2
Of the rubber 3 to the holding member 20 and the holding member 2
0 is fitted so as to fit into the fitting recess 5 and the feeding roller 2 is attached to the driving shaft 1 so that the pin 7 of the feeding roller 2 fits into the fitting hole 10 of the driving shaft 1. .
【0022】上記のように給送ローラ2を駆動軸1に取
りつけることで図2のようにゴム3は張力供与部材9に
押されゴム3にテンションが加わり、ゴム3は給送ロー
ラ2に固定される。By attaching the feeding roller 2 to the drive shaft 1 as described above, the rubber 3 is pushed by the tension applying member 9 and tension is applied to the rubber 3 as shown in FIG. 2, and the rubber 3 is fixed to the feeding roller 2. To be done.
【0023】この状態で、駆動軸1はモーター(不図
示)からギア(不図示)を経て駆動され、駆動軸1の回
動によってゴム3が固定された給送ローラ2も回動し、
シート材を給送して画像形成装置(不図示)の画像形成
部や画像読み取り部へと送られて、その後の処理プロセ
スが行われる。In this state, the drive shaft 1 is driven by a motor (not shown) via a gear (not shown), and the rotation of the drive shaft 1 also rotates the feeding roller 2 to which the rubber 3 is fixed.
The sheet material is fed and sent to an image forming unit or an image reading unit of an image forming apparatus (not shown), and a subsequent processing process is performed.
【0024】上記の構成の給送ローラ2は、組立ての際
にゴム3を給送ローラ2の保持部材20にゴム3を引き
のばすことなく容易に装着することが可能となり組立て
の効率がよくなり、又ゴム3に余計なひずみを生じさせ
ることがない。従ってゴム3の性能が低下することなく
耐久性の向上も計ることができる。In the feeding roller 2 having the above-mentioned structure, it is possible to easily attach the rubber 3 to the holding member 20 of the feeding roller 2 at the time of assembling without pulling the rubber 3 and the efficiency of assembling is improved. Moreover, the rubber 3 is not excessively strained. Therefore, the durability of the rubber 3 can be improved without lowering its performance.
【0025】またゴム3の交換の際にも給送ローラ2を
駆動軸1から取りはずすとゴム3にかかっていたテンシ
ョンが解除される為、容易にゴム3を取りはずすことが
でき、ゴム3の交換が容易になる。Further, even when the rubber 3 is replaced, if the feeding roller 2 is removed from the drive shaft 1, the tension applied to the rubber 3 is released, so that the rubber 3 can be easily removed and the rubber 3 is replaced. Will be easier.
【0026】また、装置を廃却する際は、ゴム3と樹脂
製の給送ローラ2の分離が容易となりリサイクルにも適
する。Further, when the apparatus is discarded, the rubber 3 and the resin-made feeding roller 2 can be easily separated, which is suitable for recycling.
【0027】さらに、ゴム3の内周面または外周面を複
数の異なる表面領域として、あるシート材との当接する
面が摩耗や変形した際には、ゴム3のシート材と当接す
る面を変えることで未使用の部分を給紙位置にセットす
れば実質的にゴムの寿命が異なる表面領域の数だけ長く
なる。図1及び2においてはゴム3に位置決め突起8が
2つあり、1つのゴム3で2つの表面領域を使用するこ
とができる。Further, the inner peripheral surface or the outer peripheral surface of the rubber 3 is set as a plurality of different surface areas, and when the surface contacting with a certain sheet material is worn or deformed, the surface contacting with the sheet material of the rubber 3 is changed. Therefore, if the unused portion is set at the sheet feeding position, the life of the rubber becomes substantially longer by the number of different surface regions. In FIGS. 1 and 2, the rubber 3 has two locating projections 8 and one rubber 3 can use two surface areas.
【0028】これらはエコロジーの観点から見ても有効
である。These are also effective from the viewpoint of ecology.
【0029】(第2実施例)図3及び図4は本発明の第
2の実施例で、同図において図1及び2と同一の構成部
品については同一の符号を付してその説明を省略する。(Second Embodiment) FIGS. 3 and 4 are a second embodiment of the present invention. In FIG. 3, the same components as those in FIGS. 1 and 2 are designated by the same reference numerals and their description is omitted. To do.
【0030】図3及び図4において11は駆動軸1がス
ライド式に移動できる軸穴、12は駆動軸1がスムーズ
に移動可能にするスリットである。In FIGS. 3 and 4, 11 is a shaft hole in which the drive shaft 1 can slide, and 12 is a slit which allows the drive shaft 1 to move smoothly.
【0031】上記構成において駆動軸1は給送ローラ2
Aの軸穴11を通っており、給送ローラ2は軸穴11の
左右2つの穴位置のどちらかの位置で駆動軸1に保持さ
れる。In the above structure, the drive shaft 1 is the feeding roller 2
It passes through the shaft hole 11 of A, and the feeding roller 2 is held by the drive shaft 1 at any one of two left and right hole positions of the shaft hole 11.
【0032】給送ローラ2Aを装着する際には、まず軸
穴11右側の位置に駆動軸1がある図3に示す状態でゴ
ム3の嵌合窪み5と保持部材20の位置決め突起8とが
嵌合する位置に合わせる。そして給送ローラ2を矢印A
1の方向に移動するとゴム3は張力供与部材9に押され
ることによりテンションがかかりゴム3は給送ローラ2
Aに固定されて図4に示す状態となり、駆動軸1からの
駆動を受けて回動しシート材のピックアップを行う。When mounting the feeding roller 2A, first, the fitting recess 5 of the rubber 3 and the positioning projection 8 of the holding member 20 are placed in the state where the drive shaft 1 is located on the right side of the shaft hole 11 as shown in FIG. Adjust to the mating position. Then, move the feeding roller 2 to the arrow A
When the rubber 3 is moved in the direction of 1, the tension is applied by the rubber 3 being pushed by the tension applying member 9, and the rubber 3 is fed by the feeding roller 2
It is fixed to A and brought into the state shown in FIG. 4, and it is driven by the drive shaft 1 to rotate and pick up the sheet material.
【0033】またゴム3の交換あるいはゴム3の給紙面
の変更の際は、図4に示す状態から矢印A2の方向に給
送ローラ2Aを移動させるとゴム3にかかっていたテン
ションが解除され図3に示す状態となる。この状態にお
いてゴム3の交換あるいはゴム3のシート材と当接する
面の変更を行い、給送ローラ2Aを図3の矢印A1の方
向に移動すると未使用のシート材と当接する面でシート
材の給送を行うことができる。When the rubber 3 is replaced or the feeding surface of the rubber 3 is changed, when the feeding roller 2A is moved in the direction of arrow A2 from the state shown in FIG. 4, the tension applied to the rubber 3 is released. The state shown in FIG. In this state, the rubber 3 is replaced or the surface of the rubber 3 that contacts the sheet material is changed, and when the feeding roller 2A is moved in the direction of arrow A1 in FIG. 3, the surface of the sheet material that contacts the unused sheet material is changed. Delivery can be done.
【0034】上記構成にすることにより給送ローラ2A
が駆動軸1から取りはずさない構成の場合においても、
組立ての際にゴム3を引きのばすことなく容易に装着で
き組立ての効率がよくなる。又ゴム3に余計なひずみを
生じさせることがないためゴム3の性能が低下すること
なく耐久性の向上を計ることができる。With the above structure, the feeding roller 2A
Even if the drive shaft 1 is not removed from the drive shaft 1,
At the time of assembly, the rubber 3 can be easily attached without pulling it out, and the efficiency of assembly is improved. Further, since the rubber 3 is not excessively strained, the durability of the rubber 3 can be improved without deteriorating the performance of the rubber 3.
【0035】またゴム3の交換あるいはシート材と当接
する面の変更の際には給送ローラ2Aをスライドさせる
とゴム3のテンションが解除されるため容易にゴム3を
取りはずすことができユーザー交換を容易にする。又装
置の廃棄の際においてもゴム3と樹脂製の給送ローラ2
Aとの分別が容易となりサイクルにも適している。When the rubber 3 is replaced or the surface contacting the sheet material is changed, sliding the feeding roller 2A releases the tension of the rubber 3 so that the rubber 3 can be easily removed and replaced by the user. make it easier. Also, when the device is discarded, the rubber 3 and the resin feeding roller 2 are also used.
It can be easily separated from A and is suitable for cycles.
【0036】(第3実施例)図5,6は本発明の第3の
実施例で同図において図1及び2と同一の構成部品につ
いては同一の符号を付してその説明を省略する。(Third Embodiment) FIGS. 5 and 6 show a third embodiment of the present invention, in which the same components as those in FIGS. 1 and 2 are designated by the same reference numerals and their description is omitted.
【0037】13はゴム3aの係合位置を表示する表示
手段としての表示番号で給送ローラ2Bは表示番号が見
えるようになっており、この構成において、当初使用し
ているゴム3aのシート材と当接するが摩耗や変形によ
り摩擦係数が低下した場合、ゴム3aを給送ローラ2B
から取りはずし180°回転して今まで使用していなか
った部分をシート材と当接する面にする。Reference numeral 13 is a display number as a display means for displaying the engagement position of the rubber 3a, and the feed roller 2B can see the display number. In this configuration, the sheet material of the rubber 3a initially used. However, if the friction coefficient is reduced due to wear or deformation, the rubber 3a is fed to the feeding roller 2B.
Remove it and rotate it 180 ° to make the part that was not used until now contact the sheet material.
【0038】あるいは、図6のようにゴム3bを裏返し
にして未使用部分を給紙面にする。これによってゴム3
bの寿命を実質的に2倍に向上させることができ、また
ゴム3bにつけられた表示番号13によってゴム再装着
の際にまちがえることがなく装着できる。Alternatively, as shown in FIG. 6, the rubber 3b is turned upside down and the unused portion is used as the paper feeding surface. This makes rubber 3
It is possible to substantially double the life of the rubber b, and the indication number 13 attached to the rubber 3b allows the rubber 3b to be installed without any mistake when re-installing the rubber.
【0039】(第4実施例)図7は本発明の第4の実施
例で同図において図1及び2と同一の構成部品について
は同一の符号を付してその説明を省略する。(Fourth Embodiment) FIG. 7 shows a fourth embodiment of the present invention. In FIG. 7, the same components as those in FIGS. 1 and 2 are designated by the same reference numerals and the description thereof will be omitted.
【0040】図7おける14は自らは駆動しない軸、1
5は軸14に固定され他のギア(不図示)より駆動を受
け軸14及び給送ローラ2Cを回動させるギア、16は
ギア15の一部分でゴム3のテンションをかける張力供
与部材である。Reference numeral 14 in FIG. 7 denotes an axis which is not driven by itself, 1
Reference numeral 5 denotes a gear which is fixed to the shaft 14 and which is driven by another gear (not shown) to rotate the shaft 14 and the feeding roller 2C, and 16 is a tension applying member for applying a tension to the rubber 3 at a part of the gear 15.
【0041】上記構成において、給送ローラ2を軸14
(またはギア15でもよい)に固定すると、ギア15の
一部分である張力供与部材16によってゴム3にテンシ
ョンがかかりゴム3は給送ローラ2Cの保持部材20に
固定され、他方のギア(不図示)より駆動を受けたギア
15により給送ローラ2は回動しシート材の給送を行
う。以上説明した通り自ら駆動しない軸14に給送ロー
ラ2Cを取りつける際にも、ゴム3のテンションを容易
に調節することができる。In the above structure, the feeding roller 2 is attached to the shaft 14
When fixed to (or may be the gear 15), tension is applied to the rubber 3 by the tension applying member 16 which is a part of the gear 15, and the rubber 3 is fixed to the holding member 20 of the feeding roller 2C, and the other gear (not shown). The feeding roller 2 is rotated by the gear 15 which is driven more to feed the sheet material. As described above, even when the feeding roller 2C is attached to the shaft 14 which is not driven by itself, the tension of the rubber 3 can be easily adjusted.
【0042】(第5実施例)図8は本発明の特徴を表わ
す第5の実施例で同図において図1及び図2と同一の構
成部品については同一の符号を付してその説明を省略す
る。(Fifth Embodiment) FIG. 8 shows a fifth embodiment of the present invention, in which the same components as those in FIGS. 1 and 2 are designated by the same reference numerals and their description is omitted. To do.
【0043】一般にシート材の給送を行ってゴムが摩耗
する部分は、最初にシート材の当たる一部分であり、そ
の他の部分はほとんど摩耗しない。Generally, the portion where the rubber is worn by feeding the sheet material is the portion where the sheet material first hits, and the other portions are hardly worn.
【0044】従って給送ローラ2Dとゴム3Cの係合位
置が6ケ所とれるように給送ローラ2Dの方に嵌合溝5
を3ケ所および表示番号が見えるように保持部材20の
フランジ4に溝21を設け、またゴム3Cには位置決め
突起8を6ケ所設ける。Therefore, the fitting groove 5 is formed toward the feeding roller 2D so that the engaging positions of the feeding roller 2D and the rubber 3C can be set at six positions.
The groove 4 is provided in the flange 4 of the holding member 20 so that the three numbers and the display number can be seen, and the positioning protrusions 8 are provided in the rubber 3C at six places.
【0045】図8(a)の状態は、当初ゴム3Cのの
部分がシート材と当接する位置にあり、の部分が摩耗
した場合にはゴム3Cに与えている張力を緩めてはず
し、図8(b)で示されるようにの部分がの部分に
くるようにゴム3Cを60°回転させてから図8(c)
に示されるようにの部分がシート材と当接する位置に
来るように取りつけて使用する。In the state shown in FIG. 8A, the portion of the rubber 3C is initially in a position where it comes into contact with the sheet material, and when the portion of the rubber 3C is worn, the tension applied to the rubber 3C is loosened and removed. As shown in (b), rotate the rubber 3C by 60 ° so that the part of becomes the part of, and then, as shown in FIG. 8 (c).
Attach it so that the part shown in (1) comes to the position where it comes into contact with the sheet material.
【0046】これによりゴム3Cの寿命は実質6倍にな
り、第1の実施例で説明したようにゴム3Cの着脱は容
易であるのでユーザー交換可能である。またユーザーは
位置決め突起8の側部の表示番号13で使用した部分と
未使用の部分とを区別できるようになっている。これに
よって従来までとほぼ同じゴムの量で寿命が6倍となり
エコロジーの観点からも有効である。As a result, the life of the rubber 3C is substantially increased by 6 times, and the rubber 3C can be easily attached and detached as described in the first embodiment, so that it can be replaced by the user. Further, the user can distinguish the used portion and the unused portion by the display number 13 on the side portion of the positioning protrusion 8. As a result, the life of the rubber is almost 6 times that of the conventional rubber, which is effective from the viewpoint of ecology.
【0047】(第6実施例)図9は本発明の特徴を表わ
す第6の実施例で同図において図1及び図3と同一の構
成部品については同一の符号を付してその説明を省略す
る。(Sixth Embodiment) FIG. 9 is a sixth embodiment showing the feature of the present invention. In FIG. 9, the same components as those in FIGS. 1 and 3 are designated by the same reference numerals and their description is omitted. To do.
【0048】図9(a)において駆動軸1は給送ローラ
2Eの穴11を通っており給送ローラ2Eは左右2つの
位置のどちらかの位置で駆動軸1に保持される。給送ロ
ーラ2Eを装着する際にはまず穴11の左側の位置に駆
動軸1がある状態でゴム3を嵌合窪み5と位置決め突起
8とが係合する位置に合わせ、給送ローラ2Eを矢印A
3の方向にひっぱると軸1は穴11の右側の位置で保持
されゴム3は軸1に引っぱられテンションがかかり給送
ローラ2Eに固定され、給送ローラ2Eは駆動軸1から
の駆動を受け回動し、シート材のピックアップを行なう
(図9(b))。In FIG. 9A, the drive shaft 1 passes through the hole 11 of the feed roller 2E, and the feed roller 2E is held by the drive shaft 1 at either one of the left and right positions. When mounting the feeding roller 2E, first, with the drive shaft 1 at the position on the left side of the hole 11, the rubber 3 is aligned with the position where the fitting recess 5 and the positioning protrusion 8 are engaged, and the feeding roller 2E is fixed. Arrow A
When pulled in the direction of 3, the shaft 1 is held at the position on the right side of the hole 11, the rubber 3 is pulled by the shaft 1 and is tensioned and fixed to the feeding roller 2E, and the feeding roller 2E is driven by the driving shaft 1. It rotates to pick up the sheet material (FIG. 9B).
【0049】またゴム3のシート材と当接する面の変更
の際には軸1を穴11の左側の位置に戻せばゴム3にか
かっていたテンションが解除され、ゴム3の位置変更を
容易に行なうことができる。上記構成においては、ゴム
3に張力を与えるのは駆動軸1であるので張力部材を別
に設ける必要がなく部品の削減につながる。When changing the surface of the rubber 3 that comes into contact with the sheet material, if the shaft 1 is returned to the position on the left side of the hole 11, the tension applied to the rubber 3 is released, and the position of the rubber 3 can be changed easily. Can be done. In the above configuration, since it is the drive shaft 1 that applies the tension to the rubber 3, it is not necessary to separately provide a tension member, which leads to a reduction in the number of parts.
【0050】(第7実施例)図10は本発明の第7の実
施例で同図において図1及び図3と同一の構成部品につ
いては同一の符号を付してその説明を省略する。(Seventh Embodiment) FIG. 10 shows a seventh embodiment of the present invention. In FIG. 10, the same components as those in FIGS. 1 and 3 are designated by the same reference numerals and the description thereof will be omitted.
【0051】同図において17は張力供与部材15が移
動可能なスリット、18はスナップフィットの構成でス
リット17の両端の2ケ所で張力供与部材15を固定す
る係止部である。In the figure, reference numeral 17 is a slit in which the tension applying member 15 is movable, and 18 is a locking portion for fixing the tension applying member 15 at two positions on both ends of the slit 17 in a snap fit configuration.
【0052】上記構成において、張力供与部材15がス
リット17の右側にあるときゴム3は張力が解除された
状態であり(図10(b))、上記状態でゴム3の組立
て、交換、位置変更を行い、ゴム3を給送ローラ2に係
合させた後張力供与部材15をつまんで矢印A4の方向
に移動させ、スリット17左側まで移動させると張力供
与部材15はその位置で固定されゴム3は張力供与部材
15に押されその張力により給送ローラの保持部材20
に固定される。In the above structure, when the tension applying member 15 is on the right side of the slit 17, the rubber 3 is in a state where the tension is released (FIG. 10 (b)), and the rubber 3 is assembled, replaced, and changed in position in the above state. After engaging the rubber 3 with the feeding roller 2, the tension applying member 15 is pinched and moved in the direction of the arrow A4, and moved to the left side of the slit 17, the tension applying member 15 is fixed at that position, and the rubber 3 is fixed. Is pushed by the tension applying member 15 and the tension thereof causes the holding member 20 of the feeding roller 20.
Fixed to.
【0053】上記構成においては給送ローラ1とゴム3
だけでゴム3の着脱が可能となり、軸から分離した状態
においてもゴム3の着脱が容易にできる。In the above structure, the feeding roller 1 and the rubber 3
The rubber 3 can be attached and detached only by itself, and the rubber 3 can be attached and detached easily even when the rubber 3 is separated from the shaft.
【0054】また、上記ではシート材の給送について説
明したが、シート材に限定される事ではなく、搬送が必
要な部材全てに関して適応可能である。また、ゴム部材
での給送ローラで説明したが、材質はゴムに限らず、エ
ラストマー等シート材を搬送するのに必要な摩擦係数
と、可撓性を有していれば良い。Further, although the feeding of the sheet material has been described above, the present invention is not limited to the sheet material and can be applied to all members that need to be conveyed. Further, although the feeding roller using the rubber member has been described, the material is not limited to rubber, and it is sufficient that the material has a coefficient of friction and flexibility required to convey a sheet material such as an elastomer.
【0055】また、給送ローラは回動するように駆動さ
れると説明したが、シート材を搬送する動きであれば回
動動作に限らず、直線移動や楕円状に駆動されるものも
含まれる。Further, although it has been described that the feeding roller is driven to rotate, the feeding roller is not limited to the rotation operation as long as it is a movement to convey the sheet material, and includes linear movement and elliptical driving. Be done.
【0056】[0056]
【発明の効果】本発明は上記の構成及び作用を有するも
ので、張力供与部材が環状の可撓性部材に張力を与える
ことで環状の可撓性部材が給送ローラの保持部材上に固
定されるので、給送ローラに環状の可撓性部材を装着す
る時の組立て性や、交換性及び廃棄時のゴムと樹脂部材
の分離、分別性が向上する。The present invention has the above-described structure and operation. The tension applying member applies tension to the annular flexible member so that the annular flexible member is fixed on the holding member of the feeding roller. As a result, the assemblability when mounting the annular flexible member on the feeding roller, the replaceability, and the separability and separation of the rubber and resin members at the time of disposal are improved.
【0057】また、組立て、交換時において環状の可撓
性部材に不要なストレスを与えず、給送ローラの性能低
下を防止する。Further, during assembly and replacement, unnecessary stress is not applied to the annular flexible member, and the deterioration of the performance of the feeding roller is prevented.
【0058】保持部材と駆動軸を相対的に移動可能に構
成したことで、駆動軸自体あるいは駆動軸に設けられた
保持部材が環状の可撓性部材に張力を与える位置に移動
するので、簡単な構成で、張力を発生させることが可能
となる。Since the holding member and the drive shaft are configured to be movable relative to each other, the drive shaft itself or the holding member provided on the drive shaft moves to a position where tension is applied to the annular flexible member. With such a configuration, it is possible to generate tension.
【0059】また、環状の可撓性部材のシート材と当接
する面を、内周面または外周面の複数の異なる表面領域
の一つとすることで、ある当接する面の代わりにその他
の面を使用することができ、給送ローラの寿命を実質的
に伸ばすことになる。Further, the surface of the annular flexible member that comes into contact with the sheet material is one of a plurality of different surface areas of the inner peripheral surface or the outer peripheral surface, so that the other surface is replaced with another surface. It can be used and will substantially extend the life of the feed roller.
【0060】また可撓性部材にはシート材と当接する面
の位置を前記保持部材と係合して決める位置決め手段
と、シート材と当接する面を表示する表示手段とを備え
たことで今まで使用した当接面からその他の当接面への
変更が確実に行われ、新旧の当接面の識別も容易とな
る。Further, the flexible member is provided with positioning means for determining the position of the surface contacting the sheet material by engaging with the holding member and display means for displaying the surface contacting the sheet material. It is possible to reliably change the contact surface used up to another contact surface, and to easily identify the old and new contact surfaces.
【図1】図1は本発明の第1の実施例に係る給送ローラ
の斜視図。FIG. 1 is a perspective view of a feeding roller according to a first embodiment of the present invention.
【図2】図2は本発明の第1の実施例に係る給送ローラ
の図。FIG. 2 is a diagram of a feeding roller according to the first embodiment of the present invention.
【図3】図3は本発明の第2の実施例に係る給送ローラ
の斜視図。FIG. 3 is a perspective view of a feeding roller according to a second embodiment of the present invention.
【図4】図4は本発明の第2の実施例に係る給送ローラ
の図。FIG. 4 is a diagram of a feeding roller according to a second embodiment of the present invention.
【図5】図5は本発明の第3の実施例に係る給送ローラ
の斜視図。FIG. 5 is a perspective view of a feeding roller according to a third embodiment of the present invention.
【図6】図6は本発明の第3の実施例に係る給送ローラ
の図。FIG. 6 is a diagram of a feeding roller according to a third embodiment of the present invention.
【図7】図7は本発明の第4の実施例に係る給送ローラ
の図。FIG. 7 is a diagram of a feeding roller according to a fourth embodiment of the present invention.
【図8】図8は本発明の第5の実施例に係る給送ローラ
の図。FIG. 8 is a diagram of a feeding roller according to a fifth embodiment of the present invention.
【図9】図9は本発明の第6の実施例に係る給送ローラ
の図。FIG. 9 is a diagram of a feeding roller according to a sixth embodiment of the present invention.
【図10】図10は本発明の第7の実施例に係る給送ロ
ーラの図。FIG. 10 is a diagram of a feeding roller according to a seventh embodiment of the present invention.
【図11】図11は従来の給送ローラの図。FIG. 11 is a diagram of a conventional feeding roller.
【図12】図12は従来の給送ローラの図。FIG. 12 is a diagram of a conventional feeding roller.
1 駆動軸 2,2A,2B,2C,2D,2E,2F 給送ローラ 3,3a,3b,3c ゴム(環状の可撓性部材) 5 嵌合窪み 6 スナップフィット部 7 ピン 8 位置決め突起(位置決め手段) 9,15,16 張力供与部材 10 嵌合穴 11 軸穴 12 スリット 13 表示手段 17 スリット 18 係止部材 20 保持部材 1 Drive shaft 2, 2A, 2B, 2C, 2D, 2E, 2F Feeding roller 3, 3a, 3b, 3c Rubber (annular flexible member) 5 Fitting recess 6 Snap fit part 7 Pin 8 Positioning protrusion (positioning) Means) 9, 15, 16 Tension providing member 10 Fitting hole 11 Shaft hole 12 Slit 13 Display means 17 Slit 18 Locking member 20 Holding member
Claims (8)
擦部材を保持する保持部材と、保持部材を取付けて駆動
する駆動軸とを備えた給送ローラにおいて、 前記摩擦部材は内周面が前記保持部材と当接し、外周面
がシート材と当接する環状の可撓性部材であり、 この環状の可撓性部材に張力を与えることで、環状の可
撓性部材を前記保持部材に固定する張力供与部材を備え
たことを特徴とする給送ローラ。1. A feeding roller comprising a friction member that comes into contact with a sheet material, a holding member that holds the friction member, and a drive shaft that mounts and drives the holding member, wherein the friction member has an inner peripheral surface. An annular flexible member that abuts the holding member and has an outer peripheral surface abutting the sheet material. By applying tension to the annular flexible member, the annular flexible member is fixed to the holding member. A feeding roller characterized by comprising a tension applying member for
動可能に構成され、この保持部材を駆動軸により駆動さ
れる位置に配置したときに、前記張力供与部材が前記環
状の可撓性部材に張力を与えることを特徴とする請求項
1に記載の給送ローラ。2. The holding member and the drive shaft are configured to be movable relative to each other, and when the holding member is arranged at a position driven by the drive shaft, the tension applying member has the annular flexibility. The feeding roller according to claim 1, wherein tension is applied to the member.
つける駆動軸であることを特徴とする請求項1または2
に記載の給送ローラ。3. The tension applying member is a drive shaft for mounting the holding member.
The feeding roller described in 1.
つける駆動軸に設けられた係合部材であることを特徴と
する請求項1または2に記載の給送ローラ。4. The feeding roller according to claim 1, wherein the tension applying member is an engaging member provided on a drive shaft to which the holding member is attached.
の可撓性部材に張力を与えない位置と張力を与える位置
とに移動可能に設けられた係合部材であることを特徴と
する請求項1に記載の給送ローラ。5. The tension applying member is an engaging member movably provided between a position where tension is not applied to the annular flexible member and a position where tension is applied to the holding member. The feeding roller according to item 1.
擦部材を保持する保持部材と、保持部材を取付けて駆動
する駆動軸とを備えた給送ローラにおいて、 前記摩擦部材は内周面が前記保持部材と当接し、外周面
がシート材と当接する環状の可撓性部材であり、 この環状の可撓性部材は内周面または外周面の複数の異
なる表面領域の一つをシート材と当接する面として前記
保持部材に係合可能としたことを特徴とする給送ロー
ラ。6. A feeding roller comprising a friction member that comes into contact with a sheet material, a holding member that holds the friction member, and a drive shaft that mounts and drives the holding member, wherein the friction member has an inner peripheral surface. The annular flexible member is in contact with the holding member and has an outer peripheral surface in contact with the sheet material, and the annular flexible member has one of a plurality of different surface regions of the inner peripheral surface or the outer peripheral surface. A feeding roller which is engageable with the holding member as a surface that comes into contact with the feeding roller.
接する面の位置を前記保持部材と係合して決める位置決
め手段と、シート材と当接する面を表示する表示手段と
を備えたことを特徴とする請求項6に記載の給送ロー
ラ。7. The annular flexible member is provided with positioning means for determining the position of the surface contacting the sheet material by engaging with the holding member, and display means for displaying the surface contacting the sheet material. The feeding roller according to claim 6, wherein the feeding roller is a roller.
擦部材を保持する保持部材と、保持部材を取付けて駆動
する駆動軸とを備えた給送ローラにおいて、 前記摩擦部材は内周面が前記保持部材と当接し、外周面
がシート材と当接する環状の可撓性部材であり、 この環状の可撓性部材は内周面または外周面の複数の異
なる表面領域の一つをシート材と当接する面として前記
保持部材に係合可能とし、シート材と当接する面の位置
を前記保持部材と係合して決める位置決め手段と、シー
ト材と当接する面を表示する表示手段とを備えたことを
特徴とする請求項1,2,3,4または5に記載の給送
ローラ。8. A feeding roller comprising a friction member that comes into contact with a sheet material, a holding member that holds the friction member, and a drive shaft that mounts and drives the holding member, wherein the friction member has an inner peripheral surface. The annular flexible member is in contact with the holding member and has an outer peripheral surface in contact with the sheet material, and the annular flexible member has one of a plurality of different surface regions of the inner peripheral surface or the outer peripheral surface. A positioning means that is engageable with the holding member as a surface that comes into contact with the sheet material, and that determines the position of the surface that comes into contact with the sheet material by engaging with the holding member, and display means that displays the surface that comes into contact with the sheet material The feeding roller according to claim 1, 2, 3, 4, or 5.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33074694A JP3554055B2 (en) | 1994-12-07 | 1994-12-07 | Feed roller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33074694A JP3554055B2 (en) | 1994-12-07 | 1994-12-07 | Feed roller |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH08157086A true JPH08157086A (en) | 1996-06-18 |
JP3554055B2 JP3554055B2 (en) | 2004-08-11 |
Family
ID=18236097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP33074694A Expired - Fee Related JP3554055B2 (en) | 1994-12-07 | 1994-12-07 | Feed roller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3554055B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013060288A (en) * | 2011-09-14 | 2013-04-04 | Sumitomo Rubber Ind Ltd | Paper feeding roller |
US8500115B2 (en) | 2009-11-27 | 2013-08-06 | Kyocera Mita Corporation | Feed assembly and image forming apparatus incorporating feed assembly |
CN103387150A (en) * | 2012-05-11 | 2013-11-13 | 富士施乐株式会社 | Sheet transport device and image forming apparatus |
US9535389B2 (en) * | 2014-07-25 | 2017-01-03 | Canon Kabushiki Kaisha | Roller member, sheet feeding apparatus and image forming apparatus |
-
1994
- 1994-12-07 JP JP33074694A patent/JP3554055B2/en not_active Expired - Fee Related
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8500115B2 (en) | 2009-11-27 | 2013-08-06 | Kyocera Mita Corporation | Feed assembly and image forming apparatus incorporating feed assembly |
US8757613B2 (en) | 2009-11-27 | 2014-06-24 | Kyocera Document Solutions Inc. | Feed assembly and image forming apparatus incorporating feed assembly |
JP2013060288A (en) * | 2011-09-14 | 2013-04-04 | Sumitomo Rubber Ind Ltd | Paper feeding roller |
US8746679B2 (en) | 2011-09-14 | 2014-06-10 | Sumitomo Rubber Industries, Ltd. | Sheet feed roller |
CN103387150A (en) * | 2012-05-11 | 2013-11-13 | 富士施乐株式会社 | Sheet transport device and image forming apparatus |
US9535389B2 (en) * | 2014-07-25 | 2017-01-03 | Canon Kabushiki Kaisha | Roller member, sheet feeding apparatus and image forming apparatus |
US9785095B2 (en) | 2014-07-25 | 2017-10-10 | Canon Kabushiki Kaisha | Roller member, sheet feeding apparatus and image forming apparatus |
Also Published As
Publication number | Publication date |
---|---|
JP3554055B2 (en) | 2004-08-11 |
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