JPH0415501Y2 - - Google Patents

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Publication number
JPH0415501Y2
JPH0415501Y2 JP6381085U JP6381085U JPH0415501Y2 JP H0415501 Y2 JPH0415501 Y2 JP H0415501Y2 JP 6381085 U JP6381085 U JP 6381085U JP 6381085 U JP6381085 U JP 6381085U JP H0415501 Y2 JPH0415501 Y2 JP H0415501Y2
Authority
JP
Japan
Prior art keywords
cover
roller
driven roller
printing
paper
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
Application number
JP6381085U
Other languages
Japanese (ja)
Other versions
JPS61180741U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP6381085U priority Critical patent/JPH0415501Y2/ja
Publication of JPS61180741U publication Critical patent/JPS61180741U/ja
Application granted granted Critical
Publication of JPH0415501Y2 publication Critical patent/JPH0415501Y2/ja
Expired legal-status Critical Current

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  • Handling Of Continuous Sheets Of Paper (AREA)
  • Advancing Webs (AREA)

Description

【考案の詳細な説明】 本考案は、回動可能とした従動側ローラ部カバ
ーの支持構造に関するものである。
[Detailed Description of the Invention] The present invention relates to a support structure for a rotatable driven roller portion cover.

電子写真式印刷装置でも、連続印刷用紙を用い
高い速度で印刷を行う印刷機は、印刷原理上構造
が複雑となるため装置が比較的大形となり、特に
印刷装置への用紙装填操作は煩雑となつてオペレ
ータは、負担増をしいられている。この対策とし
て印刷用紙を自動的に装填する機構を備えオペレ
ータの負荷を軽減する印刷装置が開発されている
ことは周知の通りである。
Even with electrophotographic printing equipment, printing machines that print at high speed using continuous printing paper have a complicated structure due to the printing principle, making the equipment relatively large, and the operation of loading paper into the printing equipment is particularly complicated. Operators are now being burdened with increasing burdens. As a countermeasure to this problem, it is well known that printing apparatuses have been developed that are equipped with a mechanism for automatically loading printing paper to reduce the burden on the operator.

これらの機構は、用紙自動装填機構と呼ばれ用
紙を印刷装置に初期セツトするときに動作する。
印刷用紙が装置内で動作可能状態にセツトされる
と通常の印刷動作時は該機構は不必要となるのが
普通である。
These mechanisms are called automatic paper loading mechanisms and operate when paper is initially set in the printing device.
Once the printing paper is ready for operation within the device, the mechanism is typically unnecessary during normal printing operations.

又、該機構そのものが取り付け部位によつては
印刷動作毎に悪影響を生じさせることがあるた
め、影響の出ない位置に後退させておく機構を持
つているのが一般的である。
Further, depending on the location where the mechanism itself is attached, it may cause an adverse effect on each printing operation, so it is common to have a mechanism for retracting it to a position where it will not be affected.

第1図の如く用紙自動装填機構は、印刷装置内
の必要部位に駆動側ローラ1と従動側ローラ2を
対でもうけ、駆動側ローラ1を回転させ従動側ロ
ーラ2の押し付け力により得られる摩擦力にて印
刷用紙5を後方(用紙折りたたみ装置側)に送り
出す機構である。
As shown in Fig. 1, the automatic paper loading mechanism has a driving roller 1 and a driven roller 2 in pairs at necessary locations in the printing device, and generates friction by rotating the driving roller 1 and applying the pressing force of the driven roller 2. This is a mechanism that sends out the printing paper 5 rearward (toward the paper folding device side) using force.

対を形成するローラは、印刷用紙5を動作可能
状態にセツトすると、その機能は不必要となるた
め、第2図の如くヒンジ6に支持されたフレーム
7を矢印側に後退させる。フレーム7にはローラ
支持体43が固着され、ヒンジ41を介して、ロ
ーラ2を装着したローラホルダ42が回動自在に
支持され、バネ8により反時計方向に付勢されて
いる。
Since the rollers forming the pair become unnecessary when the printing paper 5 is set in the operable state, the frame 7 supported by the hinge 6 is moved back in the direction of the arrow as shown in FIG. A roller support body 43 is fixed to the frame 7, and a roller holder 42 with the roller 2 mounted thereon is rotatably supported via a hinge 41, and is biased counterclockwise by a spring 8.

これら対をなすローラは、装置の原理・構造上
から、取り付け位置が決められ電子写真式印刷装
置では、第1図の転写部3と定着部4間に必要と
なる。
The mounting positions of these pairs of rollers are determined based on the principle and structure of the apparatus, and in an electrophotographic printing apparatus, they are required between the transfer section 3 and the fixing section 4 in FIG. 1.

又、第1図の如く転写部3と定着部4間には原
理・構造上用紙の流れる方向が変わる変曲点にも
当たり用紙が直進して従動側ローラ2に衝突する
のを防ぐため第3図の如く用紙のガイドを兼ねた
カバー31を従動側ローラ近傍に取り付けてい
る。
Furthermore, as shown in FIG. 1, between the transfer section 3 and the fixing section 4, there is a groove located between the transfer section 3 and the fixing section 4 in order to prevent the paper from traveling straight and colliding with the driven roller 2 due to the principle and structure of the inflection point where the direction of paper flow changes. As shown in Figure 3, a cover 31 that also serves as a paper guide is attached near the driven roller.

該カバー31は、上記機能を達成させるため第
3図の如く駆動側ローラ1部にあるカバー32と
のギヤツプがせまくなる様に設けられている。
In order to achieve the above-mentioned function, the cover 31 is provided so as to narrow the gap between the cover 32 and the cover 32 on the drive side roller 1, as shown in FIG. 3.

ここで、上述転写部3と定着部4の間は、印刷
用紙に転写したトナーが定着していないため、印
刷用紙の送り時に発生する用紙バタツキ等により
トナーが飛散する。飛散したトナーが従動側ロー
ラ2やカバー31に付着し、特に従動側ローラ2
に付着したトナーは、用紙装填動作時や印刷動作
時に印刷用紙表面に転写して印刷用紙を汚してし
まう。印刷用紙表面の汚れを防ぐ方策として一般
には、従動側ローラ2を定期的に清掃することで
汚れを防いでいる。
Here, since the toner transferred to the printing paper is not fixed between the transfer section 3 and the fixing section 4, the toner is scattered due to paper flapping or the like that occurs when the printing paper is fed. The scattered toner adheres to the driven roller 2 and the cover 31, especially the driven roller 2.
The toner adhering to the paper is transferred to the surface of the printing paper during the paper loading operation or printing operation, staining the printing paper. Generally, as a measure to prevent stains on the surface of printing paper, the driven roller 2 is regularly cleaned to prevent stains.

ところがカバー31をつけた状態で従動側ロー
ラ2を清掃しようと、従動側ローラ2を押し付け
ると第4図の如くヒンジ41を支点として、ロー
ラホルダ42が矢印側へ回転し従動側ローラ部の
カバー31内に入り込んでしまい清掃が非常にし
づらくなる。
However, when trying to clean the driven roller 2 with the cover 31 attached, when the driven roller 2 is pressed, the roller holder 42 rotates in the direction of the arrow with the hinge 41 as a fulcrum as shown in FIG. 31, making it extremely difficult to clean.

このため点検作業時には、従動側ローラ部のカ
バー31を取り外せる様第4図の如くローラ支持
体43に対し、ネジ44による固定方式とする構
造がとられる。
For this reason, a structure is adopted in which the cover 31 of the driven roller section is fixed to the roller support body 43 with screws 44 as shown in FIG. 4 so that it can be removed during inspection work.

ネジ固定式は取り付け、取り外しに際して、そ
の都度ネジの取り外しとネジ締め付け、作業を行
わなければならない。
When installing or removing a screw-fixed type, the screws must be removed and tightened each time.

ところが装置の構造上、ネジを設ける位置が保
守作業のやりにくい位置になることがさけられず
ドライバ等の工具をひとつ取り扱うにも神経を使
う作業となつてしまう不具合点がある。
However, due to the structure of the device, the locations where the screws are installed are unavoidably difficult to perform maintenance work on, and there is a problem in that even handling a single tool such as a screwdriver requires nerves.

また、機械の大型化により保守作業を複数人で
行うことが一般化している装置では、確認励行を
おこたると作業者の1人が該ローラ等の清掃をし
ている最中に他の人が該ローラ部の動作をおこさ
せたりすることがある。
In addition, in equipment where it is common for maintenance work to be performed by multiple people due to larger machines, if one worker is cleaning the rollers etc. while another worker is cleaning the rollers, etc. This may cause the roller section to move.

該ローラの駆動側ローラ部のカバー32と従動
側ローラ部のカバー31間は、第3図の如くギヤ
ツプが少ない上、カバーはある程度剛性を持つて
いるためこの間に指(手)をはさまれるという人
身上の危険もある。
There is little gap between the cover 32 of the driving side roller part and the cover 31 of the driven side roller part of the roller, as shown in FIG. There is also a personal risk.

これらの危険防止のためセンサを設け、物体が
ある時は、動作を停止させる機能を追加すること
が一般に考えられるが、本機械に取り付けるには
機能の割には原価高となつて得策でない。
To prevent these dangers, it is generally considered to install a sensor and add a function to stop the operation when an object is present, but it is not a good idea to install it on this machine because the cost is high compared to the function.

本考案の目的は、上記した従来技術の欠点をな
くし、従動側ローラ部のカバー支持構造を簡便に
することである。
An object of the present invention is to eliminate the above-mentioned drawbacks of the prior art and to simplify the cover support structure of the driven roller section.

本考案は、従動側ローラ部のカバー固定法を一
端はネジ固定、他端はフリーとした片持ばり構造
とすることにより作用点(カバーの固定がフリー
側)に働く外力によつて発生する作用点部のカバ
ー変形量が弾性限度内であれば永久変形を起さず
に初期状態を保つことに着目し、カバーの力点
(ネジ固定部側)と作用点(フリー側)の寸法お
よびカバーの材質・形状寸法とカバーとその支持
体との嵌合構造を工夫したものである。
This invention uses a cantilever structure in which the cover of the driven roller section is fixed with screws at one end and free at the other end, thereby reducing the amount of force generated by external force acting on the point of action (the cover is fixed on the free side). Focusing on maintaining the initial state without causing permanent deformation if the amount of cover deformation at the point of application is within the elastic limit, we determined the dimensions of the force point of the cover (screw fixed part side) and the point of action (free side) and the cover. The material and shape of the cover and the fitting structure between the cover and its support have been devised.

本考案となる具体的実施例を第5図を用いて説
明する。
A specific embodiment of the present invention will be described with reference to FIG.

駆動は図示しない駆動源により複数個からなる
駆動側ローラ1を用紙装填動作時に矢印方向に回
転させる。
For driving, a drive source (not shown) rotates a plurality of drive-side rollers 1 in the direction of the arrow during paper loading operation.

上記駆動側ローラ1と対向して従動側ローラ2
は、ヒンジ51を支点として矢印方向(AB方
向)に回動可能となる機構を持ち、図示しない駆
動機構により装置への印刷用紙装填動作時は、矢
印A方向に動かして駆動側ローラ1と従動側ロー
ラ2が接触し押圧された位置で停止させる。
The driven roller 2 faces the driving roller 1.
has a mechanism that can rotate in the direction of the arrow (AB direction) using the hinge 51 as a fulcrum, and when the printing paper is loaded into the device by a drive mechanism (not shown), it is moved in the direction of the arrow A to connect the driving roller 1 and the driven roller. It is stopped at the position where the side roller 2 contacts and is pressed.

印刷用紙の装填動作が終了すると矢印B方向に
動かして従動側ローラ2を後退させておく。
When the printing paper loading operation is completed, the driven roller 2 is moved in the direction of arrow B to retreat.

さらに従動側ローラ2は、ヒンジ52を支点と
して矢印方向(CD方向)に回動可能な構造とな
つている。
Furthermore, the driven roller 2 is structured to be rotatable in the direction of the arrow (CD direction) about the hinge 52 as a fulcrum.

駆動側ローラ1と従動側ローラ2の接触部以外
は印刷用紙のガイドと各ローラへの印刷用紙巻き
付きを防ぐための駆動側ローラ部のカバー32と
従動側ローラ部のカバー33を取り付けてある。
A cover 32 for the driving roller section and a cover 33 for the driven roller section are attached to the areas other than the contact portions between the driving roller 1 and the driven roller 2 in order to guide the printing paper and prevent the printing paper from wrapping around each roller.

駆動側ローラ部のカバー32は、図示しない構
造体にネジ固定されている。
The cover 32 of the drive-side roller section is screwed to a structure (not shown).

従動側ローラ部のカバー33は、一端に複数個
の突起片53を設け、この突起片53をローラ支
持体43に対向して設けられた同数の開口部54
に挿入する。
The cover 33 of the driven roller section is provided with a plurality of protruding pieces 53 at one end, and these protruding pieces 53 are connected to the same number of openings 54 provided facing the roller support body 43.
Insert into.

該カバーの他端は、ローラ支持体43にネジ5
5で固定される。
The other end of the cover is attached to the roller support 43 with a screw 5.
It is fixed at 5.

カバー33は、自身の振動を防止するため、カ
バー33の突起片53を、E点で矢印F方向に押
し付け力を発生させカバー33に外力による荷重
が働かない時でも、若干のたわみを発生する様に
カバー33を矢印G方向に動かしてネジ55で固
定しておく。
In order to prevent the cover 33 from vibrating itself, a force is generated to press the protruding piece 53 of the cover 33 in the direction of the arrow F at point E, so that the cover 33 is slightly bent even when no external force is applied to the cover 33. Move the cover 33 in the direction of arrow G and fix it with the screws 55.

従動側ローラ2の清掃は、第6図の如く従動側
ローラがB方向に後退している時にカバー33の
H近辺にI方向に力を加えて変形させると、カバ
ー33は破線の状態となる。
To clean the driven roller 2, as shown in FIG. 6, when the driven roller is retreating in the B direction, apply force to the H area of the cover 33 in the I direction to deform it, and the cover 33 will be in the state shown by the broken line. .

カバー33が破線の状態になると従動側ローラ
2がカバー33外に出る部分が多くなる。従動側
ローラ2を容易につかむことが可能となり清掃が
しやすくなる。
When the cover 33 is in the state shown by the broken line, a large portion of the driven roller 2 protrudes outside the cover 33. The driven roller 2 can be easily gripped and cleaned easily.

また、第7図に示すように従動側ローラ2がA
方向に動作中、カバー33とカバー32の間に手
(指)50等があると従動側ローラ2とカバー3
3は実線状態となり、正常時のギヤツプより大き
くなり、人身上の危険や構成部品の破損も防ぐこ
とができる。
Further, as shown in FIG. 7, the driven roller 2 is
If there is a hand (finger) 50 etc. between the cover 33 and the cover 32 during movement in the direction, the driven roller 2 and the cover 3
3 is a solid line, which is larger than the normal gap, and can prevent personal injury and damage to component parts.

上述した外力がカバー33から除去されると材
料のもつ弾性力により第6図の実線状態に戻り、
適正なカバー間のギヤツプが得られる様になる。
When the above-mentioned external force is removed from the cover 33, the elastic force of the material returns it to the state shown by the solid line in FIG.
This will allow you to obtain an appropriate gap between the covers.

該カバー33の外力による変形量δと外力Wの
関係は、カバー33の材質(E:縦弾性係数)
と、形状(I:断面2次モーメント)と外力の作
用点lで決定し、 δ・αWl3/3EI で表されることは周知である。
The relationship between the amount of deformation δ of the cover 33 due to external force and the external force W is determined by the material of the cover 33 (E: modulus of longitudinal elasticity)
It is well known that it is determined by the shape (I: moment of inertia of area) and the point of action l of external force, and is expressed as δ·αWl 3 /3EI.

従つて機械の必要とする条件を満足させる上記
各値を設定し設計を行なえばよい。
Therefore, the design can be carried out by setting the above-mentioned values that satisfy the conditions required by the machine.

本考案によれば取り付け、取り外しの作業が簡
便になることから内部機構の保守作業が容易に行
え、しかも指をはさまれる等の人身的危険性も軽
減することができる。
According to the present invention, since the installation and removal operations are simple, the internal mechanism can be easily maintained, and the risk of personal injury such as fingers getting caught can be reduced.

また部品点数を少なく構成することから安価な
従動側ローラ部カバーとすることが可能となる実
用的な効果がある。
In addition, since the number of parts is reduced, it is possible to provide an inexpensive driven roller portion cover, which has a practical effect.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は、電子写真式印刷装置の一例を示す構
成説明図、第2図は従来の用紙自動装填機構を示
し、従動側ローラ部の後退を示す正面図、第3図
は駆動従動側ローラのカバー取付状態を示す正面
図、第4図は清掃時の従動側ローラ状態とカバー
固定法を示す正面図である。第5図は本考案の実
施例を示す用紙自動装填機構の正面図、第6図は
従動側ローラのカバ変形状態を示す正面図、第7
図はカバ変形状態を示す正面図である。 図において、1は駆動側ローラ、2は従動側ロ
ーラ、3は転写部、4は定着部、5は印刷用紙、
33はカバー、41はヒンジ、42はローラホル
ダ、43はローラ支持体、44はネジ、51,5
2はヒンジ、53は突起片、54は開口部、55
はネジである。
FIG. 1 is a configuration explanatory diagram showing an example of an electrophotographic printing device, FIG. 2 is a front view showing a conventional paper automatic loading mechanism and shows the driven roller section retracting, and FIG. 3 is a front view showing the driven driven roller section. FIG. 4 is a front view showing the state of the cover attached, and FIG. 4 is a front view showing the state of the driven roller during cleaning and the method of fixing the cover. FIG. 5 is a front view of an automatic paper loading mechanism showing an embodiment of the present invention, FIG. 6 is a front view showing a deformed state of the cover of the driven roller, and FIG.
The figure is a front view showing the cover in a deformed state. In the figure, 1 is a driving side roller, 2 is a driven side roller, 3 is a transfer section, 4 is a fixing section, 5 is a printing paper,
33 is a cover, 41 is a hinge, 42 is a roller holder, 43 is a roller support body, 44 is a screw, 51,5
2 is a hinge, 53 is a projection piece, 54 is an opening, 55
is a screw.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 駆動装置により回転を行う複数個の駆動側ロー
ラと、該ローラに回動可能に押圧された複数個の
従動側ローラとを有し、両ローラ間に発生する摩
擦力にて印刷用紙を送る印刷装置において、前記
従動側ローラを支持する構造体に複数個の開口部
を設け、該開口部に対向して突起片を有する弾性
体からなるカバーを設け、該カバーの突起片を開
口部に挿入して嵌合支持することを特徴とする従
動側ローラのカバー支持構造。
Printing that has a plurality of drive-side rollers that are rotated by a drive device and a plurality of driven-side rollers that are rotatably pressed by the rollers, and that print paper is sent by the frictional force generated between both rollers. In the apparatus, a plurality of openings are provided in the structure supporting the driven roller, a cover made of an elastic body having a protruding piece is provided opposite to the opening, and the protruding piece of the cover is inserted into the opening. A cover support structure for a driven side roller, characterized in that the cover is supported in a fitted manner.
JP6381085U 1985-04-26 1985-04-26 Expired JPH0415501Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6381085U JPH0415501Y2 (en) 1985-04-26 1985-04-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6381085U JPH0415501Y2 (en) 1985-04-26 1985-04-26

Publications (2)

Publication Number Publication Date
JPS61180741U JPS61180741U (en) 1986-11-11
JPH0415501Y2 true JPH0415501Y2 (en) 1992-04-07

Family

ID=30594309

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6381085U Expired JPH0415501Y2 (en) 1985-04-26 1985-04-26

Country Status (1)

Country Link
JP (1) JPH0415501Y2 (en)

Also Published As

Publication number Publication date
JPS61180741U (en) 1986-11-11

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