JPH02132034A - Sheet feed roller device - Google Patents
Sheet feed roller deviceInfo
- Publication number
- JPH02132034A JPH02132034A JP63286310A JP28631088A JPH02132034A JP H02132034 A JPH02132034 A JP H02132034A JP 63286310 A JP63286310 A JP 63286310A JP 28631088 A JP28631088 A JP 28631088A JP H02132034 A JPH02132034 A JP H02132034A
- Authority
- JP
- Japan
- Prior art keywords
- roller shaft
- shaft
- roller
- base body
- bearing member
- 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
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
Abstract
Description
【発明の詳細な説明】
Ｕ旦塵机歴分団
本発明は電子複写機やプリンタ等において用いられる紙
送りローラ装置に関するものであり、よる．
鴛】りυΣ人
これらの画像形成装置では例えば給紙ローラは１本の軸
に駆動ギヤとローラを設けていたため、これを交換する
際には取り外し、並びに取り付けが非常に大がかりで面
倒な作業となっていた。そのため軸を２つの部分に分け
て、その一方については駆動ギヤを設けると共に基体に
回転自在に固定し、他方についてはローラを装着すると
共に取り替えができるように構成されたものが提案され
ている．その場合、２つの軸部分の結合はジョイント部
材を用いるか、若しくは軸に直接ビス穴を設けてビス固
定により連結するかしている。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper feed roller device used in electronic copying machines, printers, etc. In these image forming devices, for example, the paper feed roller had a drive gear and a roller on a single shaft, so when replacing it, removing and installing it was a very large-scale and troublesome task. It had become. Therefore, a structure has been proposed in which the shaft is divided into two parts, one of which is equipped with a drive gear and rotatably fixed to the base, and the other is equipped with rollers and can be replaced. In this case, the two shaft parts are connected by using a joint member or by directly providing screw holes in the shaft and fixing them with screws.
日が”しようとする課
しかしながら、前記ジョイント部材を用いたり、直接ビ
ス止めする構成では交換の際にビス等をドライバで外さ
なければならないため、セット性が悪く、場合によって
はドライバを画像形成装置内に自由に挿入しにくいとい
った問題も生しる。However, when using the above-mentioned joint member or using a structure in which screws are directly secured, screws, etc. must be removed with a screwdriver when replacing them, making it difficult to set the screws, and in some cases, it is difficult to set the screws in the image forming device. There is also the problem that it is difficult to insert it freely inside the body.
それ故、本発明の目的はビス止め等の面倒な作業を必要
としない構造で取り付け．取り外しが容易に行いうるよ
うにした新規な紙送りローラ装置を堤供することにある
。Therefore, the object of the present invention is to provide a structure that does not require troublesome work such as fixing with screws. An object of the present invention is to provide a novel paper feed roller device which can be easily removed.
ｉ ″゛ るための
上記の目的を達成するため本発明の紙送りローラ装置は
、基体に回転自在に固定されると共に一端に第１係合連
結手段を有する駆動軸と、前記第１係合連結手段と係合
連結する第２係合連結手段を一端に有すると共に紙送り
用のローラを有するローラ軸と、該ローラ軸と互いに回
転自在の関係でローラ軸に装着された軸受け部材と、前
記基体に設けられていて前記ローラ軸が前記基体から前
記ローラ軸の垂直方向へ抜けるのを防止するように前記
軸受け部材を係合支持する支持部と、前記ローラ軸の他
端側と前記基仮との間に嵌め込みにより弾性介在して前
記ローラ軸を前記駆動軸へ押しつけるバネ部材とから構
成されている。In order to achieve the above object, the paper feed roller device of the present invention includes a drive shaft rotatably fixed to a base body and having a first engagement connection means at one end, and a drive shaft that is rotatably fixed to a base and has a first engagement connection means at one end, a roller shaft having a second engaging and connecting means at one end that engages and connects with the connecting means and has a paper feeding roller; a bearing member mounted on the roller shaft in a mutually rotatable relationship with the roller shaft; a support portion provided on the base body that engages and supports the bearing member so as to prevent the roller shaft from coming off from the base body in a direction perpendicular to the roller shaft; and a spring member that is elastically interposed between the roller shaft and the roller shaft and presses the roller shaft against the drive shaft.
作一■
このような構成によると、ローラ軸を取り付ける場合は
駆動軸の一端にローラ軸の一端を押し当て、第１，第２
係合連結手段を係合連結せしめると共に、軸受け部材を
基体の支持部に係合支持せしめ、しかる後バネ部材を基
体とローラ軸の他端側との間に介在するように嵌め込む
と、ローラ軸全体が駆動軸方向へ弾性的に常時押し当て
られるので、ローラ軸はその軸方向変位が規制される。Sakuichi ■ According to this configuration, when installing a roller shaft, press one end of the roller shaft against one end of the drive shaft, and then connect the first and second roller shafts.
When the engagement and connection means are engaged and connected, and the bearing member is engaged and supported by the support portion of the base body, and then the spring member is fitted so as to be interposed between the base body and the other end side of the roller shaft, the roller Since the entire shaft is always elastically pressed in the direction of the drive shaft, the axial displacement of the roller shaft is restricted.
従って、基体から軸方向及び垂直方向に抜け出すことは
ない。Therefore, it cannot escape from the base body in the axial and vertical directions.
次にローラ軸を取り外す場合は、まずバネ部材を取り外
し、しかる後、前記軸受け部材と支持部の係合、並びに
第１，第２係合連結部材の係合を解いてやれば容易に取
り出すことができる。Next, when removing the roller shaft, it can be easily removed by first removing the spring member, and then disengaging the bearing member from the support portion and the first and second engagement connecting members. Can be done.
実ＪＬＪｆｉ
図は本発明を給紙ローラに適用した場合の実施例を示し
ている．本実施例において給紙ローラは第３図に示すよ
うに画像形成装置に連結されるフィーダーの左右の側板
（ｌａ） （ｌｂ）の前面上方に橋渡しされた形で側板
（ｌａ） （ｌｂ）と一体に形成された基体（２）の孔
（３）内に配置されるようになっている。Actual JLJfi The figure shows an example in which the present invention is applied to a paper feed roller. In this embodiment, as shown in FIG. 3, the paper feed roller is connected to the left and right side plates (la) (lb) of the feeder, which are connected to the image forming apparatus, in such a way that they are bridged above the front surfaces of the left and right side plates (la) (lb). It is arranged in a hole (3) of an integrally formed base body (2).
その詳細な構造は第１図に示されており、基体（２）の
孔（３）の左端には軸受け（４）によって回転自在に支
持された駆動軸（５）が設けられている。Its detailed structure is shown in FIG. 1, and a drive shaft (5) rotatably supported by a bearing (4) is provided at the left end of the hole (3) in the base (2).
尚、前記軸受け（４）は基体（２）に取り付けられてい
る。駆動軸（５）の一端には軸方向に沿って喰い込んで
形成された係合連結用の切欠き（６） （６）が設けら
れている。この駆動軸（５）の他端は側板（ｌａ）を貫
通して外部に突出し、その突出した部分に駆動ギヤ（図
示せず）が設けられている．駆動軸（５）は通常の場合
、取り外されることはない。基体（２）には孔（３）に
対し内側に折れ曲った支持部（７ａ） （７ｂ）及び（
８ａ） （８ｂ）が対をなしてそれぞれ対向配設されて
いる．これらの支持部（７ａ）〜（８ｂ）には係合スリ
ット（９）が設けられているが、このスリット（９）は
支持部（７ａ）を代表させて説明すると基体（２）の前
面（２ａ）に設けられた水平部分（１０）と支持部（７
ａ）の折り曲げ部分（ｌ１）に設けられた垂直部分（ｌ
２）及び支持部（７ａ）の奥で（Ａ）方向に延びた部分
（ｌ３）とから成っており、後述するローラ軸（１４）
の軸受け部材（１５）のピン（ｌ６）を前面から奥へ押
し込んで、（Ａ）方向に移動させることができるように
なっている．
ローラ軸（ｌ４）の一端には係合連結用のピン（ｌ７）
がローラ軸（ｌ４）と十字を成す形で設けられている。Note that the bearing (4) is attached to the base (2). One end of the drive shaft (5) is provided with a notch (6) (6) for engaging and connecting, which is cut in along the axial direction. The other end of this drive shaft (5) penetrates the side plate (la) and projects to the outside, and a drive gear (not shown) is provided on the projecting portion. The drive shaft (5) is not normally removed. The base body (2) has supporting parts (7a) (7b) and (
8a) (8b) are arranged in pairs, facing each other. These support parts (7a) to (8b) are provided with engagement slits (9), and to explain the support part (7a) as a representative, this slit (9) is located at the front surface (2) of the base (2). The horizontal part (10) and the support part (7) provided in 2a)
The vertical portion (l) provided at the folded portion (l1) of a)
2) and a portion (l3) extending in the direction (A) at the back of the support portion (7a), and a roller shaft (14) to be described later.
The pin (l6) of the bearing member (15) can be pushed in from the front and moved in the direction (A). At one end of the roller shaft (l4) is a pin (l7) for engagement and connection.
is provided to form a cross with the roller shaft (l4).
このピン（１７）は上記駆動軸（５）の切欠き（６）
（６）に係合し、ローラ軸（１４）と駆動軸（５）を連
結せしめる．ローラ軸（１４）には更にゴム材料から成
るローラ（１８） （１８）が設けられていると共に、
Ｅリング（１９）でローラ軸（１４）の軸方向に沿う規
制がなされた前記軸受け部材（１５） （１５）が２箇
所に設けられている．この軸受け部材（ｌ５）は第２図
に示すような形をしていて、その両端にそれぞれピン（
ｌ６）を有している。軸受け部材（１５） （１５）と
ローラ軸（１４）とは互いに回転自在の関係に形成され
ているが、軸受け部材（１５） （１５）は前記支持部
（７ａ） 〜（８ｂ）によって固定されるので、軸受け
部材（１５）に対じローラ軸（ｌ４）が支持された形で
回転することになる。（２０）は後で述べるようにロー
ラ軸（ｌ４）の軸方向の抜けを阻止するようにローラ軸
（ｌ４）の軸方向位置を規制するバネ部材であり、薄い
金属弾性板をプレス加工することにより形成されている
。This pin (17) is located in the notch (6) of the drive shaft (5).
(6) to connect the roller shaft (14) and drive shaft (5). The roller shaft (14) is further provided with rollers (18) (18) made of rubber material, and
The bearing members (15) (15) are provided at two locations and are regulated along the axial direction of the roller shaft (14) by E-rings (19). This bearing member (l5) has a shape as shown in Fig. 2, and has pins (
16). The bearing member (15) (15) and the roller shaft (14) are formed in a mutually rotatable relationship, but the bearing member (15) (15) is fixed by the support portions (7a) to (8b). Therefore, the roller shaft (l4) rotates while being supported by the bearing member (15). As will be described later, (20) is a spring member that regulates the axial position of the roller shaft (l4) so as to prevent the roller shaft (l4) from coming off in the axial direction, and is made by pressing a thin metal elastic plate. It is formed by
次にローラ軸（１４）の取り付けについて説明する。Next, attachment of the roller shaft (14) will be explained.
まず、ローラ軸（ｌ４）全体を孔（３）に対し垂直に挿
入し、軸受け部材（１５） （１５）のピン（ｌ６）を
支持部（７ａ） （７ｂ）及び（８ａ） （８ｂ）のス
リット（９）に嵌入すると共に、そのスリット形状に沿
って移動させる．従って、ローラ軸（１４）は孔（３）
に対し垂直に挿入された後、左方向へ少し移動すること
になる。そして、その移動の際にローラ軸（１４）の一
端のピン（ｌ７）が駆動軸（５）の切欠き（６） （６
）に係合するように嵌め込まれる．この状態でバネ部材
（２０）の下端の両サイドに設けられた係合部（２ｌ）
の切欠き（２２）を、支持部（８ａ） （８ｂ）のスリ
ット（９）に係合して外部へ突出している軸受け部材（
ｌ５）のピン（１６） （１６）に係合させてから、バ
ネ部材（２０）を孔（３）の右端部（Ｂ）に嵌め込んで
、基体（２）との間に弾性介在させる。First, insert the entire roller shaft (l4) perpendicularly into the hole (3), and insert the pin (l6) of the bearing member (15) (15) into the support part (7a) (7b) and (8a) (8b). It is inserted into the slit (9) and moved along the shape of the slit. Therefore, the roller shaft (14) has a hole (3).
After being inserted perpendicular to the , it will move slightly to the left. During the movement, the pin (l7) at one end of the roller shaft (14) is inserted into the notch (6) (6) of the drive shaft (5).
) is inserted so that it engages with the In this state, the engaging portions (2l) provided on both sides of the lower end of the spring member (20)
The notch (22) is engaged with the slit (9) of the support part (8a) (8b) and the bearing member (
15), and then the spring member (20) is fitted into the right end (B) of the hole (3) to be elastically interposed between it and the base (2).
このようにしてローラ軸（１４）はビス等の操作上面倒
な固定部品を使用することなしに、全て係合や嵌入等の
機能形態で基体（２）に取り付けることができる。In this way, the roller shaft (14) can be attached to the base (2) in a functional manner such as engagement or fitting, without using fixing parts such as screws that are troublesome to operate.
二〇ローラ軸（ｌ４）は装着したローラ（１８） （１
Ｂ）が摩耗等によって使用上好ましくない状態になると
、新しいローラ軸と取り替えられるが、その取り替えの
際に前記基体（２）に取り付けられているローラ軸（１
４）を取り外さなければならない．しかし、その取り外
しは、まずバネ部材（２０）をそのバ不力に抗して孔（
３）から引き出してローラ軸（１４）の軸方向規制を解
いてやれば、後は容易にローラ軸（１４）を基体（２）
から取り外すことができる．上記実施例は給紙ローラ装
置に関して述べたが、本発明は搬送ローラ装置や排出口
−ラ装置等にも適用できる．
允皿皇四果
以上説明したように本発明によれば、ビス止め等を必要
としない構造でローラ軸の取り付け．取り外しができる
ので、取り替え時等における作業性が著しく向上すると
いう効果がある。20 The roller shaft (l4) is the installed roller (18) (1
When the roller shaft (B) becomes unfavorable for use due to wear etc., it is replaced with a new roller shaft.
4) must be removed. However, to remove it, first push the spring member (20) through the hole (20) against its spring force.
3) and remove the axial direction restriction of the roller shaft (14), then easily attach the roller shaft (14) to the base (2).
It can be removed from. Although the above embodiment has been described with respect to a paper feed roller device, the present invention can also be applied to a conveyance roller device, a discharge port roller device, etc. As explained above, according to the present invention, the roller shaft can be mounted with a structure that does not require screws or the like. Since it can be removed, it has the effect of significantly improving work efficiency during replacement.
第１図は本発明を実施した紙送りローラ装置の分解斜視
図であり、第２図はその軸受け部材の斜視図、第３図は
紙送りローラ装置を搭載した画像形成装置のフィーダー
の概略図である．（２）・・・基体， （５）−駆動軸
，（６）一係合連結用の切欠き，
（７ａ） （７ｂ） （８ａ） （８ｂ）−一支持部，
（１４） 一 ローラ軸， （１５）−軸受け部材，（
１７）−−・ピン． （２０）一・−バネ部材。
第１図FIG. 1 is an exploded perspective view of a paper feed roller device embodying the present invention, FIG. 2 is a perspective view of its bearing member, and FIG. 3 is a schematic diagram of a feeder of an image forming apparatus equipped with the paper feed roller device. It is. (2) Base body, (5) - Drive shaft, (6) One engagement connection notch, (7a) (7b) (8a) (8b) - One support part,
(14) - Roller shaft, (15) - Bearing member, (
17) --- Pin. (20) - Spring member. Figure 1
Claims (1)
合連結手段を有する駆動軸と、前記第１係合連結手段と
係合連結する第２係合連結手段を一端に有すると共に紙
送り用のローラを有するローラ軸と、該ローラ軸と互い
に回転自在の関係でローラ軸に装着された軸受け部材と
、前記基体に設けられていて前記ローラ軸が前記基体か
ら前記ローラ軸の垂直方向へ抜けるのを防止するように
前記軸受け部材を係合支持する支持部と、前記ローラ軸
の他端側と前記基体との間に嵌め込みにより弾性介在し
て前記ローラ軸を前記駆動軸へ押しつけるバネ部材と、
から成る紙送りローラ装置。(1) A drive shaft that is rotatably fixed to the base and has a first engaging and connecting means at one end, a second engaging and connecting means that engages and connects with the first engaging and connecting means at one end, and a paper a roller shaft having a feeding roller; a bearing member mounted on the roller shaft in a mutually rotatable relationship with the roller shaft; and a bearing member provided on the base and extending from the base in a direction perpendicular to the roller shaft. a support portion that engages and supports the bearing member to prevent it from coming off, and a spring that is elastically inserted between the other end of the roller shaft and the base body and presses the roller shaft against the drive shaft. parts and
Paper feed roller device consisting of.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63286310A JPH0755738B2 (en) | 1988-11-11 | 1988-11-11 | Paper feed roller device |
| US07/368,839 US5040779A (en) | 1988-06-23 | 1989-06-20 | Detachable paper delivery roller for a paper utilizing device |
| DE89111363T DE68909323T2 (en) | 1988-06-23 | 1989-06-22 | Paper dispenser with rollers. |
| EP89111363A EP0347898B1 (en) | 1988-06-23 | 1989-06-22 | Paper delivery apparatus using roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63286310A JPH0755738B2 (en) | 1988-11-11 | 1988-11-11 | Paper feed roller device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02132034A true JPH02132034A (en) | 1990-05-21 |
| JPH0755738B2 JPH0755738B2 (en) | 1995-06-14 |
Family
ID=17702727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63286310A Expired - Lifetime JPH0755738B2 (en) | 1988-06-23 | 1988-11-11 | Paper feed roller device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0755738B2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58125538A (en) * | 1982-01-22 | 1983-07-26 | Fuji Xerox Co Ltd | Setting/removing device for sheets feed roller |
| JPS59186841A (en) * | 1983-04-04 | 1984-10-23 | Ricoh Co Ltd | Paper feed roller device |
| JPH01149336U (en) * | 1988-04-04 | 1989-10-16 |
-
1988
- 1988-11-11 JP JP63286310A patent/JPH0755738B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58125538A (en) * | 1982-01-22 | 1983-07-26 | Fuji Xerox Co Ltd | Setting/removing device for sheets feed roller |
| JPS59186841A (en) * | 1983-04-04 | 1984-10-23 | Ricoh Co Ltd | Paper feed roller device |
| JPH01149336U (en) * | 1988-04-04 | 1989-10-16 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0755738B2 (en) | 1995-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5040779A (en) | Detachable paper delivery roller for a paper utilizing device | |
| EP0447162A1 (en) | Thermal line printer | |
| JPH02132034A (en) | Sheet feed roller device | |
| JPS58125538A (en) | Setting/removing device for sheets feed roller | |
| JPH08169581A (en) | Paper feeder | |
| CN211684125U (en) | Stylus printer | |
| JPS6141713Y2 (en) | ||
| JP2542907Y2 (en) | Bearing device | |
| JP2742712B2 (en) | Paper feed roller unit and its attachment / detachment mechanism | |
| JPH0391435U (en) | ||
| JP3381506B2 (en) | Duplex copying machine | |
| JPS6212168U (en) | ||
| JP3066119B2 (en) | Paper feeder of image forming device | |
| JPH0311920Y2 (en) | ||
| JPH08297428A (en) | Fixing device | |
| JPH11227962A (en) | Paper feeding device | |
| JP3320797B2 (en) | Automatic paper feeder | |
| JP3625116B2 (en) | Feed roller support device | |
| JPS5931421Y2 (en) | printing drum | |
| JPH0891621A (en) | Carrying mechanism for image forming device | |
| JPH0750352Y2 (en) | Paper feeder | |
| JPH02178150A (en) | Roll paper holder | |
| JPS5841517B2 (en) | electronic copy machine | |
| KR100423466B1 (en) | Mounting structure of multi-purpose tray | |
| JP4560593B2 (en) | Paper feeder |