JPS58154860A - Platen driving device of electrophotographic copying machine - Google Patents
Platen driving device of electrophotographic copying machineInfo
- Publication number
- JPS58154860A JPS58154860A JP3763782A JP3763782A JPS58154860A JP S58154860 A JPS58154860 A JP S58154860A JP 3763782 A JP3763782 A JP 3763782A JP 3763782 A JP3763782 A JP 3763782A JP S58154860 A JPS58154860 A JP S58154860A
- Authority
- JP
- Japan
- Prior art keywords
- rack
- document table
- pinion
- binion
- copying machine
- 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
- Transmission Devices (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は電子写真複写機の原稿台駆動装置に係９、特に
はラックと駆動ビニオンで原稿台を移動の多くはワイヤ
ー、プーリー系で行なわれて（・だが、ワイヤー、プー
リー系は大きな空間を必要とし、複写機の小型化には不
向きであったＯまた１台駆動方式が考えられ、既に幾つ
かが商品化されている。ラックピニオン系のｒｊＡ稿台
動台駆動方式小さなスペースですむの″であるが、ラッ
クピニオン間の距離を適切に保つことが難しく、離れす
ぎても近すぎてもＪＩＡ楢台に多くの振動を与え、画像
プレの原因となってしまう。また各Ｓ品精度を上げラッ
クピニオン間を仮に適切に設定しても１原稿台が移動し
て鳳横合の１心が本体からはずれると、原稿台が傾き、
ラックピニオン間の距ｍが変化することがある。支に、
各部品の８度を上げるにも限度があり無１１１１でラッ
クピニオン間を適切な距離に保つことは、蓋だ困難であ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a document table drive device for an electrophotographic copying machine. The pulley system requires a large space and is not suitable for downsizing copying machines.A single drive system has also been considered, and some have already been commercialized.Rack and pinion system RJA draft platform The drive system requires only a small space, but it is difficult to maintain the appropriate distance between the rack and pinions, and if they are too far apart or too close together, it will cause a lot of vibration to the JIA Naradai, causing image distortion. Furthermore, even if you improve the precision of each S product and set the rack and pinion distance appropriately, if one document table moves and one core of the Otori Yokoai comes off the main body, the document table will tilt.
The distance m between the rack and pinion may change. In support,
There is a limit to how much each part can be raised by 8 degrees, and it is difficult to maintain an appropriate distance between the rack and pinions without using the 1111.
第１図及びｇ２ｍは従来のクック２とビニオン６の噛み
合いの様子を模式的に示したものである。FIG. 1 and g2m schematically show the engagement between the conventional cooker 2 and the pinion 6.
１はランクが固定されている原稿台、４轄ピニオンの回
転軸である。ラックとビニオンの噛み合いは両者の相対
的な位置関係で決まるので、ここでは、ラックが正規の
位置にあり、誤差はビニオン側に生ずるものとして説明
を行なう。第１囮でラックとビニオンの正規の噛合関係
は、それぞれのピッチ線、２ｐと６ｐが一致するビニオ
ン中心がｎ上に存在する場合である。そしてこの状１１
におけゐ、ラックとビニオンの関瞳をバックラッシュと
呼ぶ。従つｔ１ピッチ４１２９と６ｐが一致せず、ずれ
ることはこのバックラッシュが変化することを意味する
。しかるに１実際にはラックやビニオンの加工上、組み
立上、そして摩耗等の鮭年変化によって、上記ピンチ謙
が変化し、ビニオンの中心が上下にａｔｂｍ差を生じる
のである。Reference numeral 1 designates a document table to which a rank is fixed, and a rotating shaft of a four-way pinion. Since the engagement between the rack and the binion is determined by the relative positional relationship between the two, the explanation here will be based on the assumption that the rack is in the normal position and the error occurs on the binion side. The normal meshing relationship between the rack and the binion in the first decoy is when the binion center where the respective pitch lines 2p and 6p coincide is located on n. And this situation 11
The relationship between Luck and Binion is called backlash. Therefore, the t1 pitch 4129 and 6p do not match and deviate from each other, which means that this backlash changes. However, in reality, the above-mentioned pinch strength changes due to changes in processing, assembly, and wear of racks and binions, resulting in an ATBM difference between the top and bottom of the center of the binion.
本発明の目的は上記従来技術の欠点を解消し、原稿台の
駆動中にラックとビニオン間の距離管常に一定に保ち、
バックラッシュが質わらない原稿台駆動装置を提供する
ことにある。そして原稿台移動時の振動を防止しようと
するものである。The purpose of the present invention is to solve the above-mentioned drawbacks of the prior art, and to keep the distance between the rack and the pinion constant while driving the document table.
An object of the present invention is to provide a document table driving device that does not cause backlash. This is intended to prevent vibrations during movement of the document table.
本発明はＪｌ稿台移動式の電子写真複写機の原稿台駆動
装置において、原稿台に設けたラックと、該ラックと吻
合して回動する駆動ビニオンと、骸ラックに設けた第１
の突き当て部材と、該駆動ビニオンの駆動軸に設けた第
２の突き当て部材とを有し、上記噛合状態で上記第１の
突き当て部材と第２の・突き当て部材を互いに当接させ
ラックとビニオンのバックラッシュの変化を防ぐことを
特徴とするものである。The present invention relates to a document table drive device for an electrophotographic copying machine with a movable document table.
and a second abutting member provided on the drive shaft of the drive pinion, and the first abutting member and the second abutting member are brought into contact with each other in the meshed state. It is characterized by preventing changes in backlash between the rack and the pinion.
そして支には、原稿台移動式の電子写真複＄１１の原稿
台駆動装置において、ｊｉｌＩｉａ台に弾性手段を介し
て設けたラックと、該ラックと噛合して回動する駆動ビ
ニオンと、該フックに設けた第１の央き当て部材と、該
駆動ビニオンの駆動軸に設けた第２の突き轟て部材とを
有し、上記一台状珍で上記第１の突き当て部材と第２の
突き蟲て部材を互いに当接させラックとビニオンのバン
クラッシュの変化を防ぐことを％像とするものである。The support includes a rack provided on the JILIIA table via an elastic means, a drive pinion that engages with the rack and rotates, and the hook in a $11 document table drive device for a document table movable electronic photo duplicator. a first central abutment member provided on the drive shaft of the drive pinion; and a second abutment member provided on the drive shaft of the drive pinion; The objective is to prevent changes in the bank lash of the rack and binion by bringing the ramming members into contact with each other.
以下本発明の実施ｆｉｔを図面により説明する。The implementation of the present invention will be explained below with reference to the drawings.
Ｗ、５図ｔｉａＲ１の実施例を示す、原稿台移動方向か
らみたｌｌＡｓ台躯動装駆動断面−である。原稿台１〜
看しくけ原稿台支持板の下部に社ランク２が固設され、
ラック２は回転駆動するビニオン６と噛合している。W, Figure 5 is a cross section of the llAs platform sliding device drive section seen from the document table moving direction, showing an embodiment of tiaR1. Manuscript table 1~
Company rank 2 is fixed at the bottom of the guard mechanism manuscript table support plate,
The rack 2 is engaged with a pinion 6 which is rotationally driven.
ラック２には、ラックのピッチ２ｐと−じ＾さの第１の
突き当て部材２ｍが一体に設けられている。第２の突き
当て部材３畠はビニオン３のピッチ６ｐと同外径のコｐ
でありビニオンの駆動軸４上にＩ！ｌ！ｌｋｌ可能に設
けられている。従って、第１及び第２の突き当て部材が
互いに当接した状態ではピッチ２ｐと６ｐは一致し、バ
ックラッシュを一足に保つことができるので、ＭＡ柚置
台移動中振動を防ぐことができる。The rack 2 is integrally provided with a first abutting member 2m having a pitch 2p of the rack. The second abutment member 3 has the same outer diameter as the pitch 6p of the pinion 3.
I! on the drive shaft 4 of the pinion! l! lkl is available. Therefore, when the first and second abutment members are in contact with each other, the pitches 2p and 6p match, and the backlash can be kept to a minimum, so that vibrations can be prevented during the movement of the MA yuzu stand.
しかし、既述したように、加工土酸いは組み立上の精度
不足により、場合によってはビニオン６が中心軸ｎに対
してａ、ｂ変動することがある。However, as described above, due to insufficient precision in assembling the processed soil slag, the pinion 6 may shift a and b with respect to the central axis n in some cases.
このような場合万−ａだけ上方へ中心軸ｎがずれると、
バンクラッシュは保てるとしても、それにつれて原稿台
１が持ち上げられるので、原稿のピクラッシュが大きく
なる。In this case, if the central axis n shifts upward by 10,000-a,
Even if the bank rush can be maintained, the original platen 1 is lifted accordingly, resulting in an increase in the bank rush of the original.
叱４図は本発明の第２の実施例である。Figure 4 shows a second embodiment of the present invention.
第４図では第１突き尚て部材２ａを設けたラック２と原
稿台１０間に間隙５を形成している。ラックの長手方向
のｌｄｉ］熾にスペーサ（不図示）を介してランク２０
体の弾性変形を可能にしている。設定時の間隙５は予想
される２ツク２とビニオン６との距離の１差、卸ち、例
えば１１１４かられかるように少なくともａ 十す以上
に詮定すればよい。In FIG. 4, a gap 5 is formed between the rack 2 provided with the first punching member 2a and the document table 10. LDI in the longitudinal direction of the rack] Rank 20 via a spacer (not shown)
It allows for elastic deformation of the body. The gap 5 at the time of setting may be determined by one difference between the expected distance between the two hooks 2 and the pinion 6, for example, at least a 100 mm as shown in 1114.
しかし）ランクとビニオンを噛合させた使用状廖でＦ１
１両者が幾分圧接状蓼に噛合されているので間膝はｂだ
け減少する。このように構成すればビニオンが上方へ１
だけ変動してもそれに応じてラックは上方へ変位するの
で第１突き轟てＳ材と第２突き当て部材は当撮状鰺であ
る。また、ビニオン３が下方へ変動しても％２ツク２ｔ
ｊ本来すだけ上方へ圧縮された拭動であるから、この間
ｌｉＩが復元して、ラック２はビニ＜ン３に従動して下
方へ変位し、第１突き当て部材２ｍと第２突き当て部材
６ｍを常に当接保持できる。以上、本実施例においても
、原稿台移動中にラックとビニオンのバックラッシュが
変わることがなく、振動を防止できる。However) F1 with a usage condition that meshes rank and binion
1. Since the two are engaged with each other in a somewhat pressure-like manner, the genus is reduced by b. With this configuration, the binion moves upward by 1
Even if the amount changes, the rack will be displaced upwards accordingly, so the first thrust S material and the second abutment member are in the same position as the one in question. Also, even if the pinion 3 moves downward, %2tsuku2t
Since the wiping motion was originally compressed upward, during this time the liI is restored, the rack 2 is displaced downward following the bin 3, and the first abutment member 2m and the second abutment member 6m can always be kept in contact. As described above, in this embodiment as well, the backlash between the rack and the binion does not change during movement of the document table, and vibration can be prevented.
第５図Ｆｉ更に第３の実）［ｉｆＰ！ｌを示し、第４図
における空間に、ラックに沿って板バネや防振ゴム等の
弾性部材６を介した場合である。従って、弾性は全て、
上記弾性部材により与えられ、原稿台移動中の振動防止
は勿論、ラックの変形も減少するのでその繰り返し変形
による鼓労も少ない。Fig. 5 Fi and third fruit) [ifP! This is the case where an elastic member 6 such as a plate spring or vibration-proof rubber is inserted along the rack in the space shown in FIG. Therefore, all elasticities are
The elastic member not only prevents vibrations during movement of the document table, but also reduces deformation of the rack, so there is less stress caused by repeated deformation.
尚、第６図は原稿台の移動方向からみた豫橘台断曲図、
Ｉ４７図は原稿台の一薗図である。原福載筐ガ２スＺＦ
ｉ＆楠台１に支持され複写機本体８に対して１示紙面垂
直方向に往復移動する。本発明に係るラックとビニオン
を伽えた原稿台の駆動装置ｌｌは原稿台に設けられてい
る。In addition, Figure 6 is a cross-sectional view of Yuchiantai viewed from the direction of movement of the manuscript table.
Figure I47 is a diagram of the manuscript table. Original Fukuzhou Gas 2s ZF
It is supported by the i & Kusunoki stand 1 and reciprocates in a direction perpendicular to the paper surface with respect to the copying machine main body 8. The document table driving device 11 including a rack and a pinion according to the present invention is provided on the document table.
Ｗ４Ｚ図は第４め実施例の＠面図である。Drawing W4Z is a @ side view of the fourth embodiment.
原稿台１とラック２を両肩のスペーサ９で支持して間−
１０を形成し、間ｍｉｏに板バネ１１を設はラック２が
弾性変形するように構成している。The document table 1 and rack 2 are supported by spacers 9 on both shoulders.
10, and a plate spring 11 is provided between the racks 2 and 10 so that the rack 2 is elastically deformed.
以上説明したように原稿台とランクの間に適当な空間を
設け、条件に合う弾性手段を介在させることで、ラック
、ビニオンそれぞれの突き当て面を確実に押しつけるこ
とができ、常に適切なバンクラッシュを保つこ走ができ
る。従って原稿台の動きを円滑なものとし、複写に際し
て美しい画像を得る幼果がある。また、適切なラックの
弾性により、原佃台の浮きを生じることがないこともよ
り灸しい画像を与える要因となって−・る。また予想□
される部品Ｎ＆組み立て精度から生ずるｗ４ｉ！Ｍを吸
収する働きがあり〜無１１１１１１１の組み立て作業を
可能にする効果もある。As explained above, by providing an appropriate space between the document table and the rank, and intervening elastic means that meet the conditions, it is possible to reliably press the abutment surfaces of the rack and binion, and to always achieve appropriate bank lash. You can run while keeping the . Therefore, there is a young fruit that allows the movement of the document table to be smooth and produces beautiful images when copying. In addition, due to the appropriate elasticity of the rack, the original Tsukuda stand does not float, which is another factor that gives a more moxibustion-like image. Prediction again□
w4i resulting from parts N & assembly accuracy! It has the function of absorbing M and also has the effect of making it possible to perform assembly work without 1111111.
会、−一の簡単なｌ１２＃！Ａ
第１ｋ及びｌＮ４２−は従来のラックとビニオンの噛台
状勤を示し、前者社その匈−図、後者は正向１である。Meeting, - one simple l12#! A 1k and 1N42- show the conventional rack and binion rack configuration, the former being in its lateral view and the latter in the front direction.
謝３図は本発明の第１の実施例を示し、原稿台駆動装置
の正面断ｌ１ｌｋｌ鮪、第４図は本発明の第２の実施例
−１第５図は本発明の第６の実施ガ図、第６−は本発明
に係る原稿台の移動方向からみた原稿台移動中、第７＃
Ａ社第４の実施例を示す原稿台駆動装置の＠面図。Fig. 3 shows the first embodiment of the present invention, and Fig. 4 shows the second embodiment of the invention. Fig. 5 shows the sixth embodiment of the invention. FIG.
FIG. 7 is a @ side view of a document table drive device showing a fourth embodiment of Company A;
１・・・・・原稿台 ２・・―・・ラック２ｍ１１
１１・・・第１の突き当て部材３・・・・・ビニオン（
駆動ビニオン）６ａ・・・・・第２の突き当て部材
４・・・・・駆動軸
６０・・−弾性部材（Ｉｊ＄−性手段）ち４ａ
筋 ５閏1... Original table 2... Rack 2m11
11... First abutting member 3... Binion (
Drive pinion) 6a...Second abutment member 4...Drive shaft 60...-Elastic member (Ij$-elastic means) 4a Muscle 5 Leap
Claims (1)
稿台に設けたラックと、 鋏ラックと噛合して回動する駆動ビニオンと、該ラック
に設けた第１の突き尚で部材と、＃駆動ビニオンの駆動
軸に設けたｗＬ２の央き轟て部材と を有し、上記噛合状鰺で上記第１の突き当て部材と＠２
の央き当て部材を互いに当接させ、ラックとビニオンの
バックラッシュの変化を防ぐことを特徴とする電子写真
複写機の鳳楢台ＩＩｌ！１勤原稿台に弾性手段を介して
設けたラックと、該ラックと噛合して回動する１勤ビニ
オンと１該ラツクに設けた第１の突き当てＳ材と、線駆
動ビニオンの駆動軸に設けた第２の突き当て部材と 讐有し、上記噛合拭動で上記第１の突き当て部材と第２
の突き当て部材を互いに当接させラックとビニオンのバ
ックラッシュの変化を防ぐことを特徴とする電子写真複
写機の原稿台駆動装置。[Claims] +1) A Jl document table movable electrophotographic copying machine, comprising: a rack provided on the document table; a driving pinion that rotates by meshing with the scissors rack; and a first protrusion provided on the rack. In addition, it has a member and a center roaring member of wL2 provided on the drive shaft of the drive pinion, and the above-mentioned first abutment member and the @2
HONARADAI IIl! of an electrophotographic copying machine is characterized in that center abutting members of the two are brought into contact with each other to prevent changes in backlash between the rack and the binion. A rack provided on the first shift document table via an elastic means, a first shift binion that engages with the rack and rotates, a first abutment S member provided on the first rack, and a drive shaft of the line drive binion. the second abutment member provided, and the first abutment member and the second
A document table drive device for an electrophotographic copying machine, characterized in that abutting members of the two are brought into contact with each other to prevent changes in backlash between the rack and the binion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3763782A JPS58154860A (en) | 1982-03-10 | 1982-03-10 | Platen driving device of electrophotographic copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3763782A JPS58154860A (en) | 1982-03-10 | 1982-03-10 | Platen driving device of electrophotographic copying machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58154860A true JPS58154860A (en) | 1983-09-14 |
| JPH0347508B2 JPH0347508B2 (en) | 1991-07-19 |
Family
ID=12503155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3763782A Granted JPS58154860A (en) | 1982-03-10 | 1982-03-10 | Platen driving device of electrophotographic copying machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58154860A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007016985A (en) * | 2005-06-07 | 2007-01-25 | Mitsutoyo Corp | Travel device and measuring instrument |
| WO2017195557A1 (en) * | 2016-05-11 | 2017-11-16 | 株式会社パイオラックス | Locking device for opening/closing body |
| JP2018062852A (en) * | 2018-01-24 | 2018-04-19 | 株式会社ソリック | Rack-and-pinion gear for preventing backlash in double sliding door device |
| JP2019039299A (en) * | 2018-12-12 | 2019-03-14 | 株式会社ソリック | Anti-backlash rack and pinion gear in triple sliding door system |
| JP2019522748A (en) * | 2016-05-24 | 2019-08-15 | エムシーイー−5 ディベロップメントMce−5 Development | Rolling guide device for combustion piston for variable compression ratio engine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5055338A (en) * | 1973-09-11 | 1975-05-15 | ||
| JPS5672957U (en) * | 1979-11-09 | 1981-06-15 |
-
1982
- 1982-03-10 JP JP3763782A patent/JPS58154860A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5055338A (en) * | 1973-09-11 | 1975-05-15 | ||
| JPS5672957U (en) * | 1979-11-09 | 1981-06-15 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007016985A (en) * | 2005-06-07 | 2007-01-25 | Mitsutoyo Corp | Travel device and measuring instrument |
| WO2017195557A1 (en) * | 2016-05-11 | 2017-11-16 | 株式会社パイオラックス | Locking device for opening/closing body |
| JP2019522748A (en) * | 2016-05-24 | 2019-08-15 | エムシーイー−5 ディベロップメントMce−5 Development | Rolling guide device for combustion piston for variable compression ratio engine |
| JP2018062852A (en) * | 2018-01-24 | 2018-04-19 | 株式会社ソリック | Rack-and-pinion gear for preventing backlash in double sliding door device |
| JP2019039299A (en) * | 2018-12-12 | 2019-03-14 | 株式会社ソリック | Anti-backlash rack and pinion gear in triple sliding door system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0347508B2 (en) | 1991-07-19 |
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