JPH07246695A - Phase adjusting mechanism - Google Patents

Phase adjusting mechanism

Info

Publication number
JPH07246695A
JPH07246695A JP6041059A JP4105994A JPH07246695A JP H07246695 A JPH07246695 A JP H07246695A JP 6041059 A JP6041059 A JP 6041059A JP 4105994 A JP4105994 A JP 4105994A JP H07246695 A JPH07246695 A JP H07246695A
Authority
JP
Japan
Prior art keywords
gear
plate cylinder
adjusting mechanism
phase
drive
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
Application number
JP6041059A
Other languages
Japanese (ja)
Other versions
JP3296918B2 (en
Inventor
Tomomi Hirata
智巳 平田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shibaura Machine Co Ltd
Original Assignee
Toshiba Machine Co Ltd
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 by Toshiba Machine Co Ltd filed Critical Toshiba Machine Co Ltd
Priority to JP04105994A priority Critical patent/JP3296918B2/en
Publication of JPH07246695A publication Critical patent/JPH07246695A/en
Application granted granted Critical
Publication of JP3296918B2 publication Critical patent/JP3296918B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PURPOSE:To accurately perform the phase matching of the object to be driven in a printing press within a short time, to enhance printing quality and to reduce cost. CONSTITUTION:The phase adjusting mechanism 10 provided on the way of the driving transmission route between an object 2 to be driven such as a plate cylinder and the drive source driving the same is constituted of an outer helical gear 30C, the inner helical gear 31C meshed therewith, a moving means 40 relatively moving the outer and inner helical gears 30C, 31C in an axial direction while holding the meshed state of both gears and a tolerance means 50 permitting relative movement while holding the rotary transmission between the object 20 to be driven and the drive source.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、オフセット輪転印刷機
等の印刷機内の各部に設けられた駆動対象の回転位相を
調整する位相調整機構に関し、多色刷りの印刷機に備え
付けられた各印刷装置間の版胴の位相合わせなどに利用
できる。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a phase adjusting mechanism for adjusting the rotational phase of a driven object provided in each part of a printing machine such as an offset rotary printing machine, and relates to each printing device provided in a multicolor printing machine. It can be used for phase matching of plate cylinders in between.

【0002】[0002]

【背景技術】従来より、オフセット輪転印刷機等の印刷
機では、多色刷り印刷を行うために、各色に対応した二
台あるいは四台等の複数台の印刷装置(印刷ユニット)
を並べて配置し、これらの各印刷装置に連続用紙(ウェ
ブ)を通して印刷を行っている。通常、これらの各印刷
装置は、ウェブの両面に同時に印刷を行うために、印刷
用の版を備えた版胴を上下に有するとともに、こられの
上下の版胴からそれぞれ転写されたインキをウェブの両
面に移す上下のゴム胴(ブランケット胴)を有してい
る。
2. Description of the Related Art Conventionally, in a printing machine such as a rotary offset printing machine, in order to perform multicolor printing, a plurality of printing apparatuses (printing units) such as two or four machines corresponding to each color.
Are arranged side by side, and continuous paper (web) is passed through each of these printing devices to perform printing. Usually, each of these printing devices has a plate cylinder with printing plates on the top and bottom in order to perform printing on both sides of the web at the same time, and the ink transferred from each of these upper and lower plate cylinders is printed on the web. It has upper and lower blanket cylinders (blanket cylinders) that can be transferred to both sides.

【0003】ところで、多色刷り用のオフセット輪転印
刷機では、印刷運転中に印刷紙の流れ方向に対して版胴
の回転位相を進ませ、あるいは遅らせて印刷見当(タテ
見当)を調整する版胴の位相合わせ作業が行われる。こ
の印刷運転を行いながらの位相合わせ作業(ランニング
見当合わせ、あるいはランニングレイと呼ばれる)は、
各色に対応した複数台の印刷装置の版胴間(各印刷装置
の上側の版胴どうしの間、あるいは下側の版胴どうしの
間)で位相が合っていないと、各印刷装置による印刷紙
への印刷位置がずれてしまい印刷品質が低下してしまう
ため、これを防止するために行われる作業である。
By the way, in an offset rotary printing press for multicolor printing, a plate cylinder for adjusting a printing register (vertical register) by advancing or retarding the rotational phase of the plate cylinder with respect to the flow direction of the printing paper during printing operation. Phase matching work is performed. The phase alignment work (called running registration or running ray) while performing this printing operation is
If there is no phase match between the plate cylinders of multiple printing devices corresponding to each color (between the upper plate cylinders of each printing device or between the lower plate cylinders of each printing device), the printing paper of each printing device This is a work performed in order to prevent this, because the printing position of the sheet shifts and the print quality deteriorates.

【0004】この際の位相調整は、各印刷装置に備え付
けられた各版胴上の絵柄の位相合わせを、例えば、1/
100〜2/100mm程度の精度で行うものである。
そして、印刷された印刷物をルーペ等によりチェックし
ながら、このような高精度の位相調整を行うことによ
り、良好な印刷物の確保を図っている。
For the phase adjustment at this time, the phase adjustment of the pattern on each plate cylinder provided in each printing device is performed by, for example, 1 /
It is performed with an accuracy of about 100 to 2/100 mm.
Then, the printed matter is checked with a magnifying glass or the like while the phase adjustment is performed with high precision in order to secure a good printed matter.

【0005】また、個々の各印刷装置においても、上下
の版胴により印刷紙の両面に同時に印刷を行う場合に
は、上下の版胴間の位相調整を行うこともある。なお、
この際の位相調整は、前述した各印刷装置の版胴間の位
相調整の場合に比べ、位相のずれが印刷品質に比較的影
響しないため、前述したような高精度の調整は必要とさ
れない。
Also, in each individual printing apparatus, when printing is performed on both sides of the printing paper simultaneously by the upper and lower plate cylinders, the phase adjustment between the upper and lower plate cylinders may be performed. In addition,
The phase adjustment at this time does not require the high-accuracy adjustment as described above because the phase shift has a relatively small effect on the print quality as compared with the case of the phase adjustment between the plate cylinders of each printing apparatus described above.

【0006】〔第一従来例〕図7には、このような各印
刷装置の版胴の位相を調整する位相調整機構の第一従来
例である位相調整機構900が示されている。位相調整
機構900は、上側の版胴(不図示)の軸端に固定され
た上側の版胴駆動用の版胴歯車901と、この版胴歯車
901と噛み合いかつ上側のゴム胴(不図示)の軸端に
固定された上側のゴム胴駆動用のゴム胴歯車902と、
下側の版胴(不図示)の軸端に固定された下側の版胴駆
動用の版胴歯車903と、この版胴歯車903と噛み合
いかつ下側のゴム胴(不図示)の軸端に固定された下側
のゴム胴駆動用のゴム胴歯車904とを備えている。な
お、上側のゴム胴歯車902と下側のゴム胴歯車904
とは、噛み合っていない(図7では、互いのピッチ円が
接触して噛み合っているように見えるが、軸方向つまり
紙面直交方向に互いの位置がずれている)。
[First Conventional Example] FIG. 7 shows a phase adjusting mechanism 900 which is a first conventional example of a phase adjusting mechanism for adjusting the phase of the plate cylinder of each printing apparatus. The phase adjusting mechanism 900 includes an upper plate cylinder gear 901 for driving the upper plate cylinder fixed to the shaft end of an upper plate cylinder (not shown), and an upper blanket cylinder (not shown) meshing with the plate cylinder gear 901. An upper blanket body driving blanket body gear 902 fixed to the shaft end of the
A lower plate cylinder driving plate cylinder gear 903 fixed to the shaft end of a lower plate cylinder (not shown) and a shaft end of a lower blanket cylinder (not shown) meshing with the plate cylinder gear 903. And the lower blanket cylinder driving gear 904 for driving the blanket cylinder. In addition, the upper rubber body gear 902 and the lower rubber body gear 904.
Are not meshed with each other (in FIG. 7, it seems that the pitch circles are in mesh with each other, but they are displaced in the axial direction, that is, the direction orthogonal to the paper surface).

【0007】上下の版胴歯車901,903は、それぞ
れ中間歯車905,906を介して駆動歯車907,9
08に連結され、各駆動歯車907,908は互いに噛
み合っている。そして、駆動歯車908には、駆動源か
らの入力が加えられるようになっている。これらの各歯
車のうち版胴歯車901、中間歯車905、および駆動
歯車907の上側の三つの歯車が略一直線上に配置さ
れ、一方、版胴歯車903、中間歯車906、および駆
動歯車908の下側の三つの歯車が略一直線上に配置さ
れている。
The upper and lower plate cylinder gears 901 and 903 are driving gears 907 and 9 through intermediate gears 905 and 906, respectively.
08, and the drive gears 907 and 908 mesh with each other. Then, an input from a drive source is applied to the drive gear 908. Among these gears, the plate cylinder gear 901, the intermediate gear 905, and the upper three gears of the drive gear 907 are arranged in a substantially straight line, while the plate cylinder gear 903, the intermediate gear 906, and the drive gear 908 are arranged below. The three side gears are arranged in a substantially straight line.

【0008】各中間歯車905,906と各駆動歯車9
07,908との中心間距離は、それぞれアーム90
9,910により規定されている。これらの各アーム9
09,910は、各駆動歯車907,908の軸心を中
心として回動可能に構成されている。従って、各中間歯
車905,906は、各アーム909,910の回動に
伴って各駆動歯車907,908の軸心を中心として回
動(公転)可能になっているとともに、この回動(公
転)により中心位置が僅かな範囲でずれた場合において
も、両側に位置する各版胴歯車901,903および各
駆動歯車907,908との噛み合い状態を保持しなが
ら回転(自転)可能とされてこれらの各歯車間の駆動伝
達を行うことができるようになっている。
Each intermediate gear 905, 906 and each drive gear 9
The distance between the centers of 07 and 908 is 90
9, 910. Each of these arms 9
09 and 910 are configured to be rotatable around the axes of the drive gears 907 and 908. Therefore, the intermediate gears 905 and 906 can rotate (revolve) around the axes of the drive gears 907 and 908 as the arms 909 and 910 rotate, and the rotation (revolution) can be performed. ), Even if the center position deviates within a slight range, it is possible to rotate (spin) while maintaining the meshed state with the plate cylinder gears 901 and 903 and the drive gears 907 and 908 located on both sides. The drive transmission between the gears can be performed.

【0009】アーム909,910には、それぞれリン
ク911,912の一方の端部が回転可能に接続されて
いる。これらの各リンク911,912の他方の端部
は、図示されないモータにより偏心回転される偏心軸9
13,914に回転可能に接続されている。これにより
各リンク911,912は、図中矢印A,B方向に揺動
され、各アーム909,910を回動するようになって
いる。
One ends of links 911 and 912 are rotatably connected to the arms 909 and 910, respectively. The other end of each of these links 911 and 912 has an eccentric shaft 9 eccentrically rotated by a motor (not shown).
It is rotatably connected to 13,914. As a result, the links 911 and 912 are swung in the directions of arrows A and B in the figure to rotate the arms 909 and 910.

【0010】このような第一従来例においては、モータ
の駆動により各リンク911,912を揺動させ、各ア
ーム909,910を回動させて各中間歯車905,9
06の中心位置をずらすことにより、各駆動歯車90
7,908と各版胴歯車901,903との位相をずら
して版胴の位相調整を行う。
In the first conventional example, the motors are driven to swing the links 911 and 912, and the arms 909 and 910 are turned to rotate the intermediate gears 905 and 9.
By shifting the center position of 06, each drive gear 90
7, 908 and the plate cylinder gears 901, 903 are shifted in phase to adjust the phase of the plate cylinder.

【0011】〔第二従来例〕図8および図9には、各印
刷装置の版胴の位相を調整する位相調整機構の第二従来
例である位相調整機構800が示されている。図8は位
相調整機構800の立面図、図9は位相調整機構800
の平面図である。位相調整機構800は、下側の版胴8
01の軸端に固定された平歯車802と、この平歯車8
02と噛み合う内平歯803Aを有しかつ外周に外はす
ば803Cを有する版胴歯車803と、この版胴歯車8
03と噛み合う外はすば804Cを有しかつ下側のゴム
胴805の軸端に固定されたゴム胴歯車804と、版胴
歯車803と噛み合う中間歯車(アイドラギヤ)810
とを備えている(図8,図9参照)。そして、中間歯車
810には、駆動源からの入力が加えられるようになっ
ている。
[Second Conventional Example] FIGS. 8 and 9 show a phase adjusting mechanism 800 which is a second conventional example of the phase adjusting mechanism for adjusting the phase of the plate cylinder of each printing apparatus. 8 is an elevation view of the phase adjusting mechanism 800, and FIG. 9 is a phase adjusting mechanism 800.
FIG. The phase adjusting mechanism 800 includes the lower plate cylinder 8
Spur gear 802 fixed to the shaft end of 01 and the spur gear 8
02, and a plate drum gear 803 having inner spur gears 803A meshing with No. 02 and outer spirals 803C on the outer periphery.
03 has an outer helical gear 804C and is fixed to the shaft end of the lower blanket cylinder 805, and an intermediate gear (idler gear) 810 which meshes with the plate cylinder gear 803.
And (see FIGS. 8 and 9). Then, an input from the drive source is applied to the intermediate gear 810.

【0012】また、位相調整機構800は、上側部分に
も下側部分と同様な構成を備え、それぞれ外はすばを有
する上側のゴム胴806の駆動用のゴム胴歯車807
と、上側の版胴808の駆動用の版胴歯車809とを備
えている(図9参照)。従って、中間歯車810の回転
は、版胴歯車803、ゴム胴歯車804、ゴム胴歯車8
07、版胴歯車809の順に伝達されるようになってい
る。
Further, the phase adjusting mechanism 800 has the same structure as the lower portion in the upper portion, and the blanket gear 807 for driving the upper blanket cylinder 806, which has outer spirals, respectively.
And a plate cylinder gear 809 for driving the upper plate cylinder 808 (see FIG. 9). Therefore, the rotation of the intermediate gear 810 is caused by the plate body gear 803, the blanket body gear 804, and the blanket body gear 8
07 and the plate cylinder gear 809 are transmitted in this order.

【0013】このような第二従来例においては、図示さ
れないモータ等を用いた移動手段により、版胴歯車80
3を軸方向(図9中C方向)に移動させて下側の版胴8
01の位相調整を行う。つまり、中間歯車810を固定
して考えた場合、版胴歯車803と平歯車802との平
歯による噛み合い、および版胴歯車803と中間歯車8
10との外はすばによる噛み合いをそれぞれ保持しなが
ら、版胴歯車803を軸方向に移動させると、版胴歯車
803は中間歯車810に対して回転し、これに伴って
平歯車802も版胴801とともに回転し、結局、版胴
801とこれよりも駆動源側に位置する中間歯車810
との位相関係が変化する。
In such a second conventional example, the plate drum gear 80 is moved by a moving means using a motor or the like (not shown).
3 is moved in the axial direction (C direction in FIG. 9) to move the lower plate cylinder 8
01 phase adjustment is performed. That is, when the intermediate gear 810 is fixed, the plate cylinder gear 803 and the spur gear 802 are meshed with each other by the spur teeth, and the plate cylinder gear 803 and the intermediate gear 8 are meshed.
When the plate cylinder gear 803 is moved in the axial direction while maintaining the meshing with the outer gears 10 and 10, the plate cylinder gear 803 rotates with respect to the intermediate gear 810, and the spur gear 802 also forms the plate. The plate cylinder 801 rotates together with the cylinder 801 and eventually the intermediate gear 810 located closer to the drive source than the plate cylinder 801.
The phase relationship with changes.

【0014】また、上側の版胴歯車809も、下側の版
胴歯車803と同様な構造を有し、図示されないモータ
等を用いた移動手段により、軸方向(図9中C方向)に
移動可能とされている。このため、版胴歯車809を軸
方向に移動させて上側の版胴808の位相調整を行うこ
とができる。つまり、ゴム胴歯車807を固定して考え
た場合、版胴歯車809を軸方向に移動させると、版胴
歯車809はゴム胴歯車807に対して回転し、これに
伴って版胴808も回転し、結局、版胴808とこれよ
りも駆動源側に位置するゴム胴歯車807との位相関係
が変化する。
The upper plate cylinder gear 809 also has a structure similar to that of the lower plate cylinder gear 803, and is moved in the axial direction (direction C in FIG. 9) by moving means such as a motor (not shown). It is possible. Therefore, the plate cylinder gear 809 can be moved in the axial direction to adjust the phase of the upper plate cylinder 808. That is, when the blanket gear 807 is fixed, when the plate barrel gear 809 is moved in the axial direction, the plate barrel gear 809 rotates with respect to the blanket gear 807, and the plate cylinder 808 also rotates accordingly. However, in the end, the phase relationship between the plate cylinder 808 and the blanket cylinder gear 807 located closer to the drive source than this changes.

【0015】[0015]

【発明が解決しようとする課題】しかしながら、前述し
た第一従来例の位相調整機構900(図7参照)では、
位相調整の際に各駆動歯車907,908の軸心位置を
中心として各中間歯車905,906の中心位置をずら
すので、各版胴歯車901,903と各中間歯車90
5,906との中心間距離が変化してこれらの歯車間の
バックラッシ(噛み合った二つの歯のピッチ円上におい
て、歯溝の幅から歯の厚さを引いた値)が変化してしま
う。このため、見当合わせの精度が悪く印刷品質が低下
するうえ、見当合わせに時間がかかるという問題があっ
た。また、第一従来例の位相調整機構900では、上側
のゴム胴歯車902と下側のゴム胴歯車904とが直接
に噛み合っていない構成になっている、つまり上下の版
胴歯車901,903および上下のゴム胴歯車902,
904の四つの歯車の全てが噛み合った構成にはなって
いないので、各ゴム胴歯車902,904が伝動系列の
先端部に位置するようになり、印刷運転中に各ゴム胴が
振れやすく、各胴の安定した回転が得られないため、印
刷品質が低下するという問題があった。
However, in the above-mentioned first conventional phase adjusting mechanism 900 (see FIG. 7),
During the phase adjustment, the center positions of the intermediate gears 905 and 906 are displaced around the axial center positions of the drive gears 907 and 908. Therefore, the plate cylinder gears 901 and 903 and the intermediate gears 90
5, 906 changes the center-to-center distance and changes the backlash between these gears (a value obtained by subtracting the tooth thickness from the tooth groove width on the pitch circle of two meshed teeth). Therefore, there is a problem that the registration accuracy is poor and the print quality is deteriorated, and the registration takes time. Further, in the phase adjusting mechanism 900 of the first conventional example, the upper blanket gear 902 and the lower blanket gear 904 do not directly mesh with each other, that is, the upper and lower plate body gears 901, 903 and Upper and lower blanket gears 902,
Since all four gears of 904 are not meshed with each other, the respective blanket cylinder gears 902 and 904 come to be positioned at the tip of the transmission system, and each blanket cylinder easily swings during the printing operation. There is a problem that the printing quality is deteriorated because the cylinder cannot be stably rotated.

【0016】また、前述した第二従来例の位相調整機構
800(図8及び図9参照)では、上下の版胴歯車80
9,803および上下のゴム胴歯車807,804の四
つの歯車の全てが噛み合った構成となっているので、前
述した第一従来例に比べ、印刷品質は向上するが、これ
らの四つの歯車間の回転伝達は、すべて外周に形成され
た外はすばによるものなので、コストがかかるという問
題があった。つまり、印刷装置内には、版胴にインキや
水を供給するためのインキローラや水ローラ等の多数の
ローラがあり、これらのローラには歯車駆動されるもの
も多く含まれている。そして、通常、これらの各ローラ
の駆動用のローラ歯車は、版胴歯車から駆動伝達を受け
るため、版胴歯車が外はすば歯車であると、ローラ歯車
や各種の中間歯車を含む歯車による伝動系列が全て外は
すば歯車になってしまい、伝動系列が複雑化してコスト
がかかってしまう。
In the phase adjusting mechanism 800 (see FIGS. 8 and 9) of the second conventional example described above, the upper and lower plate drum gears 80 are arranged.
9, 803 and the upper and lower blanket gears 807, 804 are all in mesh with each other, so that the print quality is improved as compared with the above-mentioned first conventional example, but between these four gears. However, there is a problem in that the rotation transmission of (3) is costly because it is entirely due to the outer spacer formed on the outer periphery. That is, the printing apparatus has a large number of rollers such as an ink roller and a water roller for supplying ink and water to the plate cylinder, and many of these rollers are gear-driven. Since the roller gear for driving each of these rollers generally receives drive transmission from the plate cylinder gear, if the plate cylinder gear is an external helical gear, a gear including a roller gear and various intermediate gears is used. The entire transmission system becomes helical gears, which makes the transmission system complicated and costly.

【0017】さらに、第二従来例の位相調整機構800
では、版胴801の位相合わせ作業に伴って二部材間の
相対的な位相変化が生じる部分である版胴歯車803と
中間歯車810との間が、外はすば同士による噛み合い
となっているので、この部分のバックラッシ(図8中記
号T)が比較的大きくなっている。このため、通常の印
刷運転中のように中間歯車810が回転駆動されて中間
歯車810と版胴歯車803との各歯が常に離れること
なく同じ側で当接されている状態では、版胴801の位
相を進ませ、あるいは遅らせるという逆方向の位相調整
を行ってもバックラッシTの存在による影響は少ない
が、例えば、運転停止中などの中間歯車810が回転駆
動されない状態では、版胴801の位相を進ませ、ある
いは遅らせるという逆方向の位相調整を行うと、バック
ラッシTによる遊び量の影響を受けて、見当合わせの精
度が悪くなり印刷品質が低下するうえ、見当合わせに時
間がかかるという問題があった。
Further, the phase adjusting mechanism 800 of the second conventional example.
Then, the outer cylinders mesh with each other between the plate cylinder gear 803 and the intermediate gear 810, which are portions where a relative phase change between the two members occurs as the phase of the plate cylinder 801 is adjusted. Therefore, the backlash at this portion (symbol T in FIG. 8) is relatively large. Therefore, in a state in which the intermediate gear 810 is rotationally driven and the teeth of the intermediate gear 810 and the plate cylinder gear 803 are always in contact with each other on the same side without separating, as in the normal printing operation, the plate cylinder 801 The effect of the backlash T is small even if the phase is adjusted in the opposite direction by advancing or retarding the phase of the plate cylinder 801 in the state where the intermediate gear 810 is not driven to rotate, for example, when the operation is stopped. If the phase is adjusted in the opposite direction by advancing or retarding the speed, the amount of play due to backlash T will affect the registration accuracy and print quality, and the registration will take time. there were.

【0018】本発明の目的は、印刷機内の駆動対象の位
相合わせを精度良くかつ短時間で行うことができ、印刷
品質の向上を図ることができるとともに、コスト低減を
図ることができる位相調整機構を提供することにある。
An object of the present invention is to achieve phase adjustment of a drive target in a printing machine with high precision and in a short time, improve print quality, and reduce cost. To provide.

【0019】[0019]

【課題を解決するための手段および作用】本発明は、駆
動対象と駆動源との間の駆動伝達経路の途中に外はすば
と内はすばとの噛み合い部分を設けてこれらを軸方向に
相対移動させることにより、前記目的を達成しようとす
るものである。具体的には、本発明は、印刷機内の各部
に設けられた駆動対象とこれを駆動する駆動源との間の
駆動伝達経路の途中に設けられて前記駆動対象の前記駆
動源に対する回転位相調整を行う位相調整機構であっ
て、前記駆動伝達経路の途中に設けられた外はすばと、
前記駆動伝達経路の途中に設けられて前記外はすばと噛
み合う内はすばと、前記外はすばと前記内はすばとの噛
み合い状態を保持しながらこれらを軸方向に相対移動さ
せる移動手段と、前記駆動対象と前記駆動源との間の回
転伝達を保持しながら前記相対移動を許容する許容手段
とを備えたことを特徴とする。
SUMMARY OF THE INVENTION According to the present invention, a meshing portion of an outer collar and an inner collar is provided in the middle of a drive transmission path between a driven object and a driving source, and these are axially arranged. It is intended to achieve the above-mentioned object by making relative movement. Specifically, the present invention is provided in the middle of a drive transmission path between a drive target provided in each part in a printing machine and a drive source for driving the drive target, and adjusts a rotational phase of the drive target with respect to the drive source. Which is a phase adjusting mechanism for performing an outer leaf provided in the middle of the drive transmission path,
The inner spacer, which is provided in the middle of the drive transmission path and meshes with the outer spacer, and the outer spacer and the inner spacer, which are meshed with each other, relatively move in the axial direction. It is characterized in that it is provided with a moving means and a permitting means for permitting the relative movement while maintaining rotation transmission between the driven object and the drive source.

【0020】ここで、「外はすば」および「内はすば」
は、それぞれ回転可能な歯車部材の外周部分および内周
部分に形成された歯(歯面)そのものを意味するもので
ある。また、外はすばまたは内はすばは、いれずれが駆
動対象側にあってもよく、いれずれが駆動源側にあって
もよい。さらに、外はすばと内はすばとの相対移動は、
外はすばのみが移動する場合、内はすばのみが移動する
場合、外はすばおよび内はすばの両方が移動する場合を
全て含むものである。
Here, "outer side" and "inner side"
Means the teeth (tooth surfaces) themselves formed on the outer peripheral portion and the inner peripheral portion of the rotatable gear member, respectively. Further, the outer edge or the inner edge may have the deviation on the drive target side, or the deviation on the drive source side. Furthermore, the relative movement between the outer and inner branches is
This includes all cases where only the outer spout moves, when only the inner spout moves, and when both the outer spout and the inner spout move.

【0021】このような本発明においては、移動手段に
より、互いに噛み合う外はすばと内はすばとをこれらの
噛み合い状態を保持しながら軸方向に相対移動させる。
この際、外はすばおよび内はすばは、駆動対象と駆動源
との間の駆動伝達経路の途中に設けられているので、こ
れらの軸方向の相対移動により駆動対象と駆動源との間
の相対的な位相関係が変化し、駆動対象の位相調整が行
われる。また、許容手段が設けられ、外はすばと内はす
ばとが相対移動しても駆動対象と駆動源との間の回転伝
達が保持されるので、印刷運転中においても位相調整が
可能となる。
In the present invention as described above, the moving means moves the outer and inner flanges meshing with each other in the axial direction while maintaining the meshed state.
At this time, since the outer spacer and the inner spacer are provided in the middle of the drive transmission path between the driving target and the driving source, the relative movement of these axial directions causes the driving target and the driving source to move. The relative phase relationship between them changes, and the phase of the drive target is adjusted. In addition, since the permitting means is provided and rotation transmission between the drive target and the drive source is maintained even if the outer and inner collars move relative to each other, phase adjustment is possible even during printing operation. Becomes

【0022】さらに、外はすばと内はすばとの噛み合い
なので、これらが軸方向に互いに相対移動しながら回転
する際には互いに摺動するような状態となる。このた
め、これらの間のバックラッシは小さくてすむので、駆
動対象の位相を進ませ、あるいは遅らせるという逆方向
の位相調整を行う場合にも、バックラッシによる遊び量
の影響を大きく受けることはなく、見当合わせの精度が
向上され、印刷品質が良好になるうえ、見当合わせ時間
の短縮が図られる。
Further, since the outer and inner ribs are meshed with each other, when they rotate while moving relative to each other in the axial direction, they are in a state of sliding relative to each other. For this reason, the backlash between them can be small.Therefore, even when performing the phase adjustment in the opposite direction by advancing or delaying the phase of the driven object, the backlash does not significantly affect the amount of play, and the register is not affected. The registration accuracy is improved, the print quality is improved, and the registration time is shortened.

【0023】つまり、前述した第二従来例(図8および
図9参照)では、中間歯車810と版胴歯車803とが
外はすば同士の噛み合いなので、これらが軸方向に互い
に相対移動しながら回転する際には、噛み合っている歯
が次々に移り変わっていくとともに噛み合っていた歯は
徐々に離れていってしまう状態となる。このため、第二
従来例のバックラッシTは、本発明の外はすばと内はす
ばとの噛み合いに必要なバックラッシに比べ、大きなも
のとなり、第二従来例の方がバックラッシによる遊び量
の影響を大きく受ける。
That is, in the above-described second conventional example (see FIGS. 8 and 9), since the intermediate gear 810 and the plate drum gear 803 are in mesh with each other in the outer helical gears, they move relative to each other in the axial direction. When rotating, the meshed teeth are changed one after another, and the meshed teeth are gradually separated from each other. For this reason, the backlash T of the second conventional example is larger than the backlash required for the engagement of the outer and inner ribs of the present invention, and the backlash T of the second conventional example has a greater amount of play due to the backlash. Greatly affected.

【0024】また、前述した第一従来例(図7参照)の
ように位相調整の際にバックラッシが変化してしまうよ
うなことはないため、このことによっても見当合わせの
精度が向上され、印刷品質が良好になるうえ、見当合わ
せ時間の短縮が図られる。
Further, since the backlash does not change during the phase adjustment as in the above-mentioned first conventional example (see FIG. 7), this also improves the registration accuracy, and the printing The quality is good and the registration time is shortened.

【0025】さらに、外はすばと内はすばとの噛み合い
部分により位相調整が行われるので、これら以外の部分
に「はすば」を用いる必要がなくなり、駆動伝達経路を
構成する各歯車、およびこれらと連動される各歯車(例
えば、インキローラや水ローラの駆動用のローラ歯車
等)の間の伝達を平歯による伝達とすることが可能とな
る。このため、前述した第二従来例のような外はすばに
よる伝達の場合に比べ、伝動系列が簡易化されてコスト
低減が図られる。
Further, since the phase adjustment is performed by the meshing portion of the outer and inner spirals, it is not necessary to use a "helix" for the other parts, and each gear forming the drive transmission path is eliminated. , And each gear (for example, a roller gear for driving an ink roller or a water roller) that is interlocked with these gears can be transmitted by spur teeth. Therefore, as compared with the case of transmission by the outer spacer as in the second conventional example described above, the transmission system is simplified and the cost is reduced.

【0026】そして、上下の版胴および上下のゴム胴の
四つの胴を備えたオフセット輪転印刷機の印刷装置(印
刷ユニット)を構成する場合には、上下の版胴の位相調
整を別々に行うために前述した第一従来例のような四つ
の胴が直接に噛み合わない構成とする必要はなく、外は
すばと内はすばとの噛み合い部分を二箇所設けておけば
上下の版胴の別々の位相調整が実現されるため、四つの
胴を直接に噛み合わせた構成とすることが可能となり、
印刷品質の向上が図られ、これらにより前記目的が達成
される。
When a printing device (printing unit) of an offset rotary printing machine having four cylinders, that is, the upper and lower plate cylinders and the upper and lower blanket cylinders, is configured, the upper and lower plate cylinders are separately adjusted in phase. Therefore, it is not necessary to have a structure in which the four cylinders do not directly mesh as in the above-mentioned first conventional example.If two meshing parts for the outer and inner ribs are provided, the upper and lower plate cylinders can be arranged. Since it is possible to adjust the phase separately, it is possible to directly engage the four barrels.
Print quality is improved, and the above-mentioned objects are achieved by these.

【0027】また、本発明の位相調整機構は、前記移動
手段が、前記外はすばまたは前記内はすばのいずれかが
形成された移動部材と、前記外はすばと前記内はすばと
の噛み合い状態を保持しながら前記移動部材を軸方向に
移動させる駆動機構とを備え、前記許容手段が、前記駆
動伝達経路の途中に設けられた歯車に形成された第一の
平歯と、前記移動部材に形成されて前記第一の平歯と噛
み合う第二の平歯とを備え、前記移動部材が、前記第一
の平歯と前記第二の平歯との噛み合い状態が保持される
範囲で移動されることを特徴とする。
Further, in the phase adjusting mechanism of the present invention, the moving means includes a moving member formed with either the outer leaf or the inner leaf, and the outer leaf and the inner leaf. A driving mechanism for moving the moving member in the axial direction while maintaining the engagement state with the spigot, wherein the permitting means has a first spur tooth formed on a gear provided in the middle of the drive transmission path; And a second spur tooth formed on the moving member and meshing with the first spur tooth, wherein the moving member holds the meshing state of the first spur tooth and the second spur tooth. It is characterized in that it is moved within a range.

【0028】ここで、移動手段を構成する移動部材の個
数としては、外はすばが形成された移動部材のみが一個
設けられている場合、内はすばが形成された移動部材の
みが一個設けられている場合、および、外はすばが形成
された移動部材と内はすばが形成された移動部材との合
計二個の移動部材が設けられている場合(例えば、後述
の図6の場合等)、を含むものとする。
Here, as for the number of moving members forming the moving means, when only one moving member having outer ribs is provided, only one moving member having inner ribs is provided. When provided, and when a total of two moving members, that is, a moving member having outer ribs and a moving member having inner ribs are provided (see, for example, FIG. , Etc.), etc.

【0029】このような構成とすれば、第一の平歯と第
二の平歯との摺動により、外はすばと内はすばとの相対
移動が容易かつ確実に吸収される。つまり、駆動伝達経
路を断ってしまうことなく相対移動が行われる。このた
め、駆動伝達経路に特殊な構造の摺動機構を設ける必要
がなくなり、駆動伝達経路の通常の構成部品の一部を用
いて相対移動を吸収することが可能となるので、駆動伝
達経路の構造が簡易化されるうえ、駆動伝達経路が平歯
による伝達構造となるので、コスト低減を図ることが可
能となる。
According to this structure, the relative movement between the outer spline and the inner spline is easily and reliably absorbed by the sliding movement of the first spur tooth and the second spur tooth. That is, the relative movement is performed without interrupting the drive transmission path. Therefore, it is not necessary to provide a sliding mechanism having a special structure in the drive transmission path, and it becomes possible to absorb relative movement by using a part of the normal components of the drive transmission path. Since the structure is simplified and the drive transmission path is a transmission structure using spur teeth, it is possible to reduce costs.

【0030】さらに、このような第一の平歯と第二の平
歯とにより許容手段を構成する場合において、前記移動
手段の移動部材に、前記内はすばを形成しかつこの内は
すばの外側であって軸方向の同じ位置に前記第二の平歯
を形成するとともに、前記外はすばを、前記駆動対象の
軸に直接に固定しておくことが好ましい。このような構
成とすれば、内はすばと第二の平歯とが重なるように形
成されることにより移動部材の小型化が図られるうえ、
駆動対象の軸まわりの構造も簡略化される。このため、
より一層の構造の簡易化、コスト低減が図られる。
Further, in the case where the first flat tooth and the second flat tooth constitute the permitting means, the inner spacer is formed on the moving member of the moving means and the inner spiral is formed. It is preferable that the second spur teeth are formed at the same position in the axial direction outside the brim and the outer flange is directly fixed to the shaft to be driven. With such a configuration, the moving member can be downsized by forming the inner spacer and the second spur teeth so as to overlap each other.
The structure around the axis of the driven object is also simplified. For this reason,
Further simplification of the structure and cost reduction can be achieved.

【0031】また、本発明の移動手段の駆動機構の具体
的構成としては、ベアリングを介して前記移動部材に対
して相対回転可能かつ軸方向に相対移動不可能に接続さ
れた中間部材と、この中間部材に設けられた雌ねじと噛
み合う雄ねじを有しかつその回転により前記中間部材を
移動させるねじ軸と、このねじ軸を回転させるモータ
と、印刷機のフレームに対する前記中間部材の回転を止
める回り止め部材とを備えた構成が挙げられる。このよ
うな構成とすれば、確実かつ容易に移動部材の軸方向移
動が実現されるうえ、位相調整の際にはモータの入切操
作を行うだけでよいので、操作に手間がかからない。
Further, as a concrete structure of the drive mechanism of the moving means of the present invention, an intermediate member connected via a bearing so as to be relatively rotatable with respect to the moving member and not relatively movable in the axial direction, A screw shaft that has a male screw that meshes with a female screw provided on the intermediate member and that moves the intermediate member by its rotation, a motor that rotates this screw shaft, and a rotation stopper that stops the rotation of the intermediate member with respect to the frame of the printing machine. And a configuration including a member. With such a configuration, the movement of the moving member in the axial direction can be realized reliably and easily, and since only the operation of turning on / off the motor needs to be performed at the time of phase adjustment, the operation is not troublesome.

【0032】そして、以上のような本発明の位相調整機
構は、印刷機内の版胴の位相調整に適用することが好適
であり、このようにすれば、版胴がタテ見当合わせのた
めの微調整を必要とする部分であることから、本発明の
効果がより一層発揮されるようになる。また、オフセッ
ト輪転印刷機を構成する各印刷装置の上下の版胴の位相
調整に本発明を適用した場合においては、各印刷装置の
上側の版胴どうし、あるいは下側の版胴どうしの位相合
わせのために位相調整を行ってもよく、個々の印刷装置
内の上下の版胴間の位相合わせのために位相調整を行っ
てもよい。なお、本発明の位相調整機構による位相調整
は、印刷運転中に行う場合、運転停止中に行う場合のい
ずれの場合も含むものである。
The phase adjusting mechanism of the present invention as described above is preferably applied to the phase adjustment of the plate cylinder in the printing machine. In this case, the plate cylinder is finely adjusted for vertical registration. The effect of the present invention is further exerted because it is a portion that requires adjustment. Further, in the case of applying the present invention to the phase adjustment of the upper and lower plate cylinders of each printing device constituting the offset rotary printing machine, the upper plate cylinder of each printing device, or the phase alignment of the lower plate cylinders Phase adjustment may be performed for this purpose, or phase adjustment may be performed for phase adjustment between the upper and lower plate cylinders in each printing apparatus. Note that the phase adjustment by the phase adjusting mechanism of the present invention includes both the case where the phase adjustment is performed during the printing operation and the case where the operation is stopped.

【0033】[0033]

【実施例】以下、本発明の一実施例を図面に基づいて説
明する。図1から図3には、本発明に係る位相調整機構
10が示されており、図1は位相調整機構10の概略平
面図、図2は位相調整機構10の立面図、図3は図1の
部分的な拡大図である。図1において、位相調整機構1
0は、多色刷りのオフセット輪転印刷機を構成する各印
刷装置(各印刷ユニット)内に設けられた駆動対象であ
る上下の版胴23,20と、図示されない駆動源である
ラインシャフト(メインモータに接続されて各印刷ユニ
ットを連動させる軸)との間の駆動伝達経路の途中に設
けられ、各版胴23,20の印刷紙の流れ方向に対する
印刷見当(タテ見当)を調整する機構である。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 3 show a phase adjusting mechanism 10 according to the present invention. FIG. 1 is a schematic plan view of the phase adjusting mechanism 10, FIG. 2 is an elevation view of the phase adjusting mechanism 10, and FIG. It is a partially expanded view of FIG. In FIG. 1, the phase adjustment mechanism 1
Reference numeral 0 denotes upper and lower plate cylinders 23 and 20 which are driving targets provided in each printing device (each printing unit) which constitutes a multi-color offset rotary printing machine, and a line shaft (main motor) which is a drive source (not shown). Is a mechanism that is provided in the middle of a drive transmission path between the printing cylinders and the shafts for interlocking each printing unit) and adjusts the printing register (vertical register) in the flow direction of the printing paper of each plate cylinder 23, 20. .

【0034】印刷用の版を備えた下側の版胴20および
上側の版胴23は、それぞれベアリング13,16を介
して印刷装置のフレーム12に回転可能に支持されてい
る。また、これらの各版胴20,23からインキを転写
されて印刷紙に印刷を行う下側のゴム胴21および上側
のゴム胴22が、それぞれベアリング14,15を介し
て印刷装置のフレーム12に回転可能に支持されてい
る。
The lower plate cylinder 20 and the upper plate cylinder 23 having the printing plates are rotatably supported on the frame 12 of the printing apparatus via bearings 13 and 16, respectively. Further, a lower blanket cylinder 21 and an upper blanket cylinder 22 which transfer ink from each of these plate cylinders 20 and 23 to print on a printing paper are provided on the frame 12 of the printing apparatus via bearings 14 and 15, respectively. It is rotatably supported.

【0035】図3には、下側の版胴20および下側のゴ
ム胴21の近傍の位相調整機構10の拡大図が示されて
いる。図2および図3において、版胴20の軸24の端
部には、外はすば30Cを有する外はすば歯車30が固
定されている。外はすば歯車30の外周側には、外はす
ば歯車30の外はすば30Cと噛み合う内はすば31C
を有する版胴歯車31が設けられている。この版胴歯車
31は、その外周に平歯31Aを有している。つまり、
版胴歯車31は内はすば付平歯車となっている。
FIG. 3 shows an enlarged view of the phase adjusting mechanism 10 in the vicinity of the lower plate cylinder 20 and the lower blanket cylinder 21. 2 and 3, an external helical gear 30 having an external helical 30C is fixed to the end of the shaft 24 of the plate cylinder 20. On the outer peripheral side of the outer helical gear 30, the inner helical 31C meshes with the outer helical 30C of the outer helical gear 30.
A plate cylinder gear 31 having a is provided. The plate drum gear 31 has spur teeth 31A on its outer circumference. That is,
The plate cylinder gear 31 is a spur gear with a helical inside.

【0036】版胴歯車31の図3中下側位置(図2中右
下位置)には、駆動源からの入力を版胴歯車31に伝達
する中間歯車32が設けられており、この中間歯車32
は、その外周に版胴歯車31の平歯31Aと噛み合う平
歯32Aを有している。版胴歯車31の上側位置には、
ゴム胴21の軸25の端部に固定されたゴム胴歯車33
が設けられている。このゴム胴歯車33は、その外周に
版胴歯車31の平歯31Aと噛み合う平歯33Aを有し
ている。
An intermediate gear 32 for transmitting an input from a drive source to the plate cylinder gear 31 is provided at a lower position in FIG. 3 (lower right position in FIG. 2) of the plate cylinder gear 31, and this intermediate gear is provided. 32
Has a spur tooth 32A that meshes with the spur tooth 31A of the plate drum gear 31 on the outer periphery thereof. At the upper position of the plate drum gear 31,
Blanket cylinder gear 33 fixed to the end of shaft 25 of blanket cylinder 21
Is provided. The blanket gear 33 has spur teeth 33A on its outer periphery that mesh with the spur teeth 31A of the plate drum gear 31.

【0037】図1において、ゴム胴歯車33の上側位置
には、上側のゴム胴22の軸26の端部に固定されたゴ
ム胴歯車34が設けられている。このゴム胴歯車34
は、その外周にゴム胴歯車33の平歯33Aと噛み合う
平歯34Aを有している。上側の版胴23の軸27の端
部には、外はすば36Cが形成された外はすば歯車36
が固定されている。ゴム胴歯車34の上側位置には、ゴ
ム胴歯車34の平歯34Aと噛み合う平歯35Aを外周
に有する版胴歯車35が設けられている。この版胴歯車
35は、その内周に外はすば歯車36の外はすば36C
と噛み合う内はすば35Cを有している。
In FIG. 1, at the upper position of the blanket body gear 33, a blanket body gear 34 fixed to the end of the shaft 26 of the upper blanket body 22 is provided. This blanket gear 34
Has spur teeth 34A on its outer periphery that mesh with spur teeth 33A of the blanket gear 33. An outer helical gear 36 having an outer helical 36C formed at the end of the shaft 27 of the upper plate cylinder 23.
Is fixed. A plate cylinder gear 35 having spur teeth 35A on the outer periphery that mesh with the spur teeth 34A of the blanket cogwheel 34 is provided above the blanket cogwheel 34. The plate drum gear 35 has an outer helical gear 36C on the inner circumference of the outer helical gear 36.
The inner side that meshes with has a collar 35C.

【0038】図3に戻って、版胴歯車31およびこれに
固定されたベアリング収納部材41は、版胴歯車31の
図3中右側位置に設けられた駆動機構42により軸方向
(図3中X方向,図2中紙面直交方向)に移動可能とさ
れ、これらの版胴歯車31とベアリング収納部材41と
により、移動部材43が構成されている。そして、移動
部材43と駆動機構42とにより、移動手段40が構成
されている。
Returning to FIG. 3, the plate cylinder gear 31 and the bearing housing member 41 fixed to the plate cylinder gear 31 are moved in the axial direction (X in FIG. 3) by a drive mechanism 42 provided at the right side position of the plate cylinder gear 31 in FIG. Direction, the direction orthogonal to the paper surface in FIG. 2), and these plate cylinder gear 31 and bearing housing member 41 constitute a moving member 43. The moving member 43 and the drive mechanism 42 constitute a moving means 40.

【0039】駆動機構42は、ベアリング収納部材41
に収納されたベアリング44を介して移動部材43に対
して相対回転可能かつ軸方向に相対移動不可能に接続さ
れた中間部材45と、この中間部材45に設けられた雌
ねじ45Aと噛み合う雄ねじ46Aを有するねじ軸46
と、ねじ軸46を回転させるモータ47と、フレーム1
2に対する中間部材45の回転を止める回り止め部材4
8とを備えている。
The drive mechanism 42 includes the bearing storage member 41.
An intermediate member 45, which is connected to the moving member 43 via a bearing 44 housed therein, so as to be relatively rotatable and axially immovable relative to each other, and a male screw 46A which meshes with a female screw 45A provided on the intermediate member 45. Screw shaft 46
And a motor 47 for rotating the screw shaft 46 and the frame 1
Rotation stop member 4 for stopping rotation of the intermediate member 45 with respect to 2
8 and.

【0040】従って、駆動機構42は、モータ47によ
りねじ軸46を回転させることにより、中間部材45を
フレーム12に対して図3中X方向に移動させ(回り止
め部材48により回転はしない)、この中間部材45の
移動とともに移動部材43を図3中X方向に移動させる
ようになっている。そして、この移動部材43の移動
は、三つの噛み合い、すなわち中間歯車32の平歯32
Aと版胴歯車31の平歯31Aとの噛み合い、版胴歯車
31の内はすば31Cと外はすば歯車30の外はすば3
0Cとの噛み合い、および版胴歯車31の平歯31Aと
ゴム胴歯車33の平歯33Aとの噛み合いをそれぞれ保
持したままの状態で行われるようになっている。
Therefore, the drive mechanism 42 moves the intermediate member 45 in the X direction in FIG. 3 with respect to the frame 12 by rotating the screw shaft 46 by the motor 47 (the rotation member 48 does not rotate). With the movement of the intermediate member 45, the moving member 43 is moved in the X direction in FIG. The movement of the moving member 43 is caused by three meshes, that is, the spur teeth 32 of the intermediate gear 32.
A and the spur gear 31A of the plate drum gear 31 mesh with each other, and the inner spiral 31C of the plate drum gear 31 and the outer spiral 3 of the outer helical gear 30
0C and the spur gear 31A of the plate cylinder gear 31 and the spur tooth 33A of the blanket cogwheel 33 are kept in the respective states.

【0041】そして、版胴歯車31の平歯31Aの軸方
向長さは、これとそれぞれ噛み合う中間歯車32の平歯
32Aおよびゴム胴歯車33の平歯33Aの軸方向長さ
よりも大きくなっており、版胴歯車31が移動しても駆
動伝達に充分な軸方向の噛み合い長さが確保されるよう
になっている。
The axial length of the spur gear 31A of the plate drum gear 31 is larger than the axial length of the spur gear 32A of the intermediate gear 32 and the spur gear 33A of the blanket gear 33 which mesh with the spur gear 31A. Even if the plate cylinder gear 31 moves, a sufficient mesh length in the axial direction is ensured for drive transmission.

【0042】第一の平歯である中間歯車32の平歯32
Aと、第二の平歯である版胴歯車31の平歯31Aとに
より、中間歯車32(駆動源側)と版胴20(駆動対
象)との間の回転伝達を保持しながら移動部材43の移
動(外はすば歯車30の外はすば30Cと版胴歯車31
の内はすば31Cとの相対移動)を許容する許容手段5
0が構成されている。
The spur gear 32 of the intermediate gear 32 which is the first spur gear
The moving member 43 while maintaining transmission of rotation between the intermediate gear 32 (driving source side) and the plate cylinder 20 (drive target) by A and the spur tooth 31A of the plate cylinder gear 31 which is the second spur tooth. Movement (the outer helical gear 30C of the outer helical gear 30 and the plate drum gear 31
Permitting means 5 for permitting relative movement with inner wall 31C)
0 is configured.

【0043】また、上側の版胴歯車35の近傍にも、下
側の版胴歯車31の場合と同様に移動機構42が設けら
れ、版胴歯車35は移動機構42により軸方向(図1中
X方向)に移動可能となっている(図1参照)。そし
て、第一の平歯であるゴム胴歯車34の平歯34Aと、
第二の平歯である版胴歯車35の平歯35Aとにより、
ゴム胴歯車34(駆動源側)と版胴23(駆動対象)と
の間の回転伝達を保持しながら版胴歯車35の移動(外
はすば歯車36の外はすば36Cと版胴歯車35の内は
すば35Cとの相対移動)を許容する許容手段51が構
成されている。
A moving mechanism 42 is provided near the upper plate cylinder gear 35 as in the case of the lower plate cylinder gear 31, and the plate cylinder gear 35 is axially moved by the moving mechanism 42 (in FIG. 1). It is movable in the X direction (see Fig. 1). And the spur gear 34A of the blanket gear 34 which is the first spur gear,
With the flat tooth 35A of the plate drum gear 35 which is the second flat tooth,
Movement of the plate cylinder gear 35 (rotation transmission between the blanket cylinder gear 34 (driving source side) and the plate cylinder 23 (drive target) (the outer helical gear 36C of the outer helical gear 36 and the plate cylinder gear) The permitting means 51 for permitting the relative movement of the inside of 35 to the collar 35C) is formed.

【0044】位相調整機構10は、通常の印刷運転中に
おいては、駆動源からの入力を中間歯車32を介して版
胴歯車31、外はすば歯車30の順に伝達し、下側の版
胴20を駆動させるとともに、版胴歯車31の回転をゴ
ム胴歯車33、ゴム胴歯車34、版胴歯車35、外はす
ば歯車36の順に伝達し、上側の版胴23を駆動させる
ようになっている。また、この通常の印刷運転中におい
ては、ベアリング44の外側に位置する移動部材43
(版胴歯車31)が版胴20と同じ速度で回転している
のに対し、ベアリング44の内側に位置する中間部材4
5は回り止め部材48によりフレーム12に対して回転
しないようになっている。
During a normal printing operation, the phase adjusting mechanism 10 transmits the input from the drive source through the intermediate gear 32 to the plate cylinder gear 31 and the external helical gear 30 in this order, and the lower plate cylinder. 20 is driven, the rotation of the plate cylinder gear 31 is transmitted in the order of the blanket gear 33, the blanket gear 34, the plate cylinder gear 35, and the external helical gear 36, and the upper plate cylinder 23 is driven. ing. Further, during this normal printing operation, the moving member 43 located outside the bearing 44 is
While the (plate cylinder gear 31) rotates at the same speed as the plate cylinder 20, the intermediate member 4 located inside the bearing 44.
5 is prevented from rotating with respect to the frame 12 by the detent member 48.

【0045】このような本実施例においては、次のよう
にして上下の版胴23,20の位相合わせ作業を行い、
オフセット輪転印刷機の印刷運転中における印刷紙の流
れ方向に対する印刷見当(タテ見当)を調整する。先
ず、下側の版胴20の位相調整を行う場合には、移動手
段40の駆動機構42により版胴歯車31(移動部材4
3)を軸方向に移動させる(図3参照)。ここで、中間
歯車32を固定して考えた場合、版胴歯車31を軸方向
に移動すると、中間歯車32と版胴歯車31とが平歯ど
うしの噛み合いであるので、これらの中間歯車32と版
胴歯車31とは軸方向に摺動するのみであり、版胴歯車
31は回転しない。
In this embodiment as described above, the phase matching work of the upper and lower plate cylinders 23 and 20 is performed as follows.
Adjust the printing register (vertical register) with respect to the flow direction of the printing paper during the printing operation of the offset rotary printing press. First, when the phase of the lower plate cylinder 20 is adjusted, the plate cylinder gear 31 (moving member 4 is moved by the drive mechanism 42 of the moving means 40.
3) is moved in the axial direction (see FIG. 3). Here, in the case where the intermediate gear 32 is fixed, when the plate cylinder gear 31 is moved in the axial direction, the intermediate gear 32 and the plate cylinder gear 31 mesh with each other because the spur teeth mesh with each other. The plate cylinder gear 31 only slides in the axial direction, and the plate cylinder gear 31 does not rotate.

【0046】一方、このように版胴歯車31が回転しな
い状態で、版胴歯車31を軸方向に移動すると、版胴2
0および外はすば歯車30がベアリング13により軸方
向に移動不可能となっており、かつ、版胴歯車31と外
はすば歯車30とが「はすば」どうしの噛み合いとなっ
ているので、必然的に版胴20および外はすば歯車30
は回転する。この結果、中間歯車32(駆動源側)と版
胴20(駆動対象)との相対的な位相関係が変化し、版
胴20の位相調整が行われる。
On the other hand, when the plate cylinder gear 31 is moved in the axial direction while the plate cylinder gear 31 is not rotating, the plate cylinder 2
0 and the external helical gear 30 are immovable in the axial direction by the bearing 13, and the plate cylinder gear 31 and the external helical gear 30 are in mesh with each other at "helix". Therefore, the plate cylinder 20 and the external helical gear 30 are inevitable.
Rotates. As a result, the relative phase relationship between the intermediate gear 32 (driving source side) and the plate cylinder 20 (drive target) changes, and the phase of the plate cylinder 20 is adjusted.

【0047】次に、上側の版胴23の位相調整を行う場
合には、前述した下側の版胴20の位相調整の場合と同
様に、駆動機構42により版胴歯車35を軸方向に移動
させる(図1参照)。ここで、版胴歯車35よりも駆動
源側に位置するゴム胴歯車34を固定して考えた場合、
版胴歯車35を軸方向に移動すると、ゴム胴歯車34と
版胴歯車35とが平歯どうしの噛み合いであるので、こ
れらの中間歯車34と版胴歯車35とは軸方向に摺動す
るのみであり、版胴歯車35は回転しない。
When the phase of the upper plate cylinder 23 is adjusted, the drive mechanism 42 moves the plate cylinder gear 35 in the axial direction in the same manner as in the case of the phase adjustment of the lower plate cylinder 20 described above. (See FIG. 1). Here, when the blanket gear 34 located closer to the drive source than the plate body gear 35 is fixed,
When the plate body gear 35 is moved in the axial direction, since the blanket gear 34 and the plate body gear 35 are in mesh with each other by spur teeth, the intermediate gear 34 and the plate body gear 35 only slide in the axial direction. Therefore, the plate cylinder gear 35 does not rotate.

【0048】一方、このように版胴歯車35が回転しな
い状態で、版胴歯車35を軸方向に移動すると、版胴2
3および外はすば歯車36がベアリング16により軸方
向に移動不可能となっており、かつ、版胴歯車35と外
はすば歯車36とが「はすば」どうしの噛み合いとなっ
ているので、必然的に版胴23および外はすば歯車36
は回転する。この結果、ゴム胴歯車34(駆動源側)と
版胴23(駆動対象)との相対的な位相関係が変化し、
版胴23の位相調整が行われる。
On the other hand, when the plate cylinder gear 35 is moved in the axial direction while the plate cylinder gear 35 is not rotating, the plate cylinder 2
3 and the external helical gear 36 are immovable in the axial direction by the bearing 16, and the plate cylinder gear 35 and the external helical gear 36 are in mesh with each other by "helix". Therefore, the plate cylinder 23 and the external helical gear 36 are inevitably included.
Rotates. As a result, the relative phase relationship between the blanket gear 34 (driving source side) and the plate cylinder 23 (driving target) changes,
Phase adjustment of the plate cylinder 23 is performed.

【0049】以上のような各版胴20,23の位相調整
は、オフセット輪転印刷機を構成する各印刷装置の上側
の版胴どうし、あるいは下側の版胴どうしの位相合わせ
のために行われるが、個々の印刷装置内の上下の版胴間
の位相合わせのために行ってもよい。また、通常、印刷
見当(タテ見当)の調整は印刷運転中に行われるが、各
版胴20,23の位相調整は運転停止中に行うこともで
きる。
The phase adjustment of the respective plate cylinders 20 and 23 as described above is performed for the phase alignment between the upper plate cylinders or the lower plate cylinders of the respective printing devices constituting the offset rotary printing press. However, it is also possible to perform phase matching between the upper and lower plate cylinders in each printing device. Further, normally, the adjustment of the printing register (vertical register) is performed during the printing operation, but the phase adjustment of each of the plate cylinders 20 and 23 can also be performed during the operation stop.

【0050】このような本実施例によれば、次のような
効果がある。すなわち、下側の版胴20の位相調整は、
外はすば歯車30の外はすば30Cと版胴歯車31の内
はすば31Cとの噛み合い部分で行われ、また、上側の
版胴23の位相調整は、外はすば歯車36の外はすば3
6Cと版胴歯車35の内はすば35Cとの噛み合い部分
で行われ、これらはいずれも外はすばと内はすばとの噛
み合いなので、これらが軸方向に互いに相対移動しなが
ら回転する際には互いに摺動するような状態となるた
め、これらの間のバックラッシ(図2中記号S)を小さ
くすることができる。このため、各版胴20,23の位
相を進ませ、あるいは遅らせるという逆方向の位相調整
を行う場合にも、バックラッシSによる遊び量の影響を
大きく受けることはなくなり、見当合わせの精度を向上
でき、印刷品質を良好にできるうえ、見当合わせ時間の
短縮を図ることができる。
According to this embodiment, the following effects can be obtained. That is, the phase adjustment of the lower plate cylinder 20 is
The outer helical gear 30C of the outer helical gear 30 and the inner helical gear 31C of the plate cylinder gear 31 are engaged with each other, and the phase adjustment of the upper plate cylinder 23 is performed by the outer helical gear 36. Outside is 3
6C and the plate drum gear 35 are engaged with each other at the meshing portion with the helical rib 35C, and since these mesh with the outer and inner helical ribs, they rotate while moving relative to each other in the axial direction. In such a case, the backlash between them (symbol S in FIG. 2) can be reduced because they are in a state of sliding relative to each other. Therefore, even when performing the phase adjustment in the opposite direction of advancing or retarding the phase of each plate cylinder 20, 23, the influence of the play amount due to the backlash S is not significantly affected, and the registration accuracy can be improved. The print quality can be improved, and the registration time can be shortened.

【0051】また、前述した第一従来例(図7参照)の
ような位相調整の際にバックラッシが変化するという不
都合を生じることはないため、このことによっても見当
合わせの精度を向上でき、印刷品質を良好にできるう
え、見当合わせ時間の短縮を図ることができる。
Further, since there is no inconvenience that the backlash changes during the phase adjustment as in the above-mentioned first conventional example (see FIG. 7), the accuracy of registration can be improved also by this, and the printing can be performed. The quality can be improved, and the registration time can be shortened.

【0052】さらに、外はすば30Cと内はすば31C
との噛み合い部分および外はすば36Cと内はすば35
Cとの噛み合い部分で各版胴20,23の位相調整がそ
れぞれ行われるので、これら以外の部分に「はすば」を
用いて位相調整を行う必要性を解消することができる。
このため、中間歯車32、版胴歯車31,35、ゴム胴
歯車33,34、およびこれらと連動されるインキロー
ラや水ローラ等の駆動用のローラ歯車などの伝動系列を
平歯による伝達構造とすることができ、前述した第二従
来例(図8および図9参照)のような外はすばによる伝
達構造の場合に比べ、伝動系列を簡易化でき、コスト低
減を図ることができる。
Further, the outer edge is 30C and the inner edge is 31C.
36C and the inner side 35
Since the phase adjustment of each of the plate cylinders 20 and 23 is performed at the meshing portion with C, the necessity of performing the phase adjustment by using "hasuba" for other portions can be eliminated.
For this reason, the transmission system of the intermediate gear 32, the plate body gears 31 and 35, the blanket body gears 33 and 34, and the driving roller gears such as the ink roller and the water roller, which are interlocked with the intermediate gears 32, has a transmission structure of flat teeth. As a result, the transmission system can be simplified and the cost can be reduced as compared with the case of the transmission structure using the outer coil as in the second conventional example (see FIGS. 8 and 9) described above.

【0053】そして、位相調整機構10は、版胴歯車3
1、ゴム胴歯車33、ゴム胴歯車34、および版胴歯車
35の四つの胴がこの順で直接に噛み合った構成となっ
ているので、前述した第一従来例に比べ、各胴の安定し
た回転を得ることができ、印刷品質の向上を図ることが
できる。
Then, the phase adjusting mechanism 10 includes the plate drum gear 3
Since the four cylinders of 1, the blanket gear 33, the blanket gear 34, and the plate barrel gear 35 are directly meshed in this order, compared to the above-mentioned first conventional example, each barrel is stable. The rotation can be obtained, and the print quality can be improved.

【0054】そして、中間歯車32の平歯32A(第一
の平歯)と版胴歯車31の平歯31A(第二の平歯)と
により許容手段50が構成され、また、ゴム胴歯車34
の平歯34A(第一の平歯)と版胴歯車35の平歯35
A(第二の平歯)とにより許容手段51が構成されてい
るので、各許容手段50,51は、いずれも第一の平歯
と第二の平歯との摺動により、各版胴歯車31,35の
軸方向移動(外はすばと内はすばとの相対移動)を容易
かつ確実に吸収することができる。このため、特殊な構
造の摺動機構を設けずに必要最小限の歯車を用いて各版
胴歯車31,35の軸方向移動を吸収することができる
ので、駆動伝達経路の構造を簡易化でき、コスト低減を
図ることができる。
The spur gear 32A (first spur gear) of the intermediate gear 32 and the spur gear 31A (second spur gear) of the plate cylinder gear 31 constitute the permitting means 50, and the blanket gear 34 is also provided.
Spur gear 34A (first spur gear) and the spur gear 35 of the plate drum gear 35
Since the permitting means 51 is constituted by A (the second spur tooth), each of the permitting means 50, 51 is caused by the sliding of the first spur tooth and the second spur tooth. Axial movements of the gears 31 and 35 (relative movements of the outer and inner ribs) can be easily and reliably absorbed. Therefore, it is possible to absorb the axial movement of the plate cylinder gears 31 and 35 without using a sliding mechanism having a special structure and to use the minimum necessary number of gears, so that the structure of the drive transmission path can be simplified. Therefore, the cost can be reduced.

【0055】また、各版胴歯車31,35には、それぞ
れ内はすば31C,35Cと第二の平歯31A,35A
とが軸方向の同じ位置に形成されているので、各版胴歯
車31,35の小型化を図ることができる(例えば、後
述の図4のような移動部材63とする場合に比べ、移動
部材43の小型化を図ることができる)。さらに、外は
すば30C,36Cを有する各外はすば歯車30,36
は、各版胴20,23の軸24,27の端部に直接に固
定されているので、各版胴20,23の軸24,27の
近傍の構造を簡略化することができる。
Further, the plate drum gears 31 and 35 have internal spirals 31C and 35C and second spur teeth 31A and 35A, respectively.
Since and are formed at the same position in the axial direction, it is possible to reduce the size of the plate cylinder gears 31 and 35 (for example, as compared with a case where a moving member 63 as shown in FIG. 43 can be miniaturized). Further, each outer helical gear 30, 36 having outer helical 30C, 36C
Is fixed directly to the ends of the shafts 24 and 27 of the plate cylinders 20 and 23, so that the structure in the vicinity of the shafts 24 and 27 of the plate cylinders 20 and 23 can be simplified.

【0056】また、駆動機構42は、中間部材45、ね
じ軸46、モータ47、および回り止め部材48を備え
た簡易な構成により実現されているので、モータ47の
入切操作という簡単な操作のみで容易に位相調整を行う
ことができる。
Further, since the drive mechanism 42 is realized by a simple structure including the intermediate member 45, the screw shaft 46, the motor 47, and the rotation stopping member 48, only a simple operation of turning the motor 47 on and off is required. Can easily adjust the phase.

【0057】なお、本発明は前記実施例に限定されるも
のではなく、本発明の目的を達成できる他の構成も含
み、例えば以下に示すような変形等も本発明に含まれる
ものである。すなわち、前記実施例では、駆動機構42
は、中間部材45、ねじ軸46、モータ47、および回
り止め部材48を備えた構成となっていたが、このよう
な構成に限定されるものではなく、例えば、エアシリン
ダ装置を用いた駆動機構などであってもよく、要する
に、各版胴歯車31,35をある程度の精度(位相の微
調整を行うことができる程度)で軸方向に移動すること
ができる機構であればよい。
The present invention is not limited to the above-mentioned embodiments, but includes other configurations that can achieve the object of the present invention, and the following modifications and the like are also included in the present invention. That is, in the above embodiment, the drive mechanism 42
Has a configuration including the intermediate member 45, the screw shaft 46, the motor 47, and the rotation stopping member 48, but the configuration is not limited to such a configuration, and for example, a drive mechanism using an air cylinder device. Etc., and in short, any mechanism can be used as long as it can move the plate cylinder gears 31 and 35 in the axial direction with a certain degree of accuracy (to the extent that fine adjustment of the phase can be performed).

【0058】また、前記実施例では、許容手段50は、
中間歯車32の平歯32A(第一の平歯)と版胴歯車3
1の平歯31A(第二の平歯)とにより構成され、許容
手段51は、ゴム胴歯車34の平歯34A(第一の平
歯)と版胴歯車35の平歯35A(第二の平歯)とによ
り構成されていたが、本発明の許容手段は、このような
第一の平歯と第二の平歯とを備えた構成に限定されるも
のではなく、例えば、キー等を用いた他の摺動機構であ
ってもよく、要するに、移動部材を構成する各版胴歯車
31,35が軸方向に移動しても各版胴20,23とこ
れらの駆動源との間の回転伝達を保持できるように構成
されていればよい。
In the above embodiment, the permitting means 50 is
The spur gear 32A (first spur gear) of the intermediate gear 32 and the plate drum gear 3
One of the spur gears 31A (second spur gear) and the permitting means 51 includes a spur gear 34A (first spur gear) of the blanket gear 34 and a spur gear 35A (second spur gear) of the plate drum gear 35. However, the permitting means of the present invention is not limited to a configuration including such a first spur tooth and a second spur tooth, and may be, for example, a key or the like. Other sliding mechanism used may be used. In short, even if the plate cylinder gears 31 and 35 constituting the moving member move in the axial direction, the plate cylinders 20 and 23 and the drive sources for these cylinders are not moved. It suffices if it is configured to be able to hold the rotation transmission.

【0059】さらに、前記実施例では、内はすば31
C,35Cと第二の平歯31A,35Aとが各版胴歯車
31,35の軸方向の同じ位置に形成されていたが、内
はすばと第二の平歯とは、軸方向の同じ位置に形成され
ている必要はなく、例えば、図4に示すように、内はす
ば61と第二の平歯62とが移動部材63の軸方向の異
なる位置に形成された位相調整機構60としてもよい。
しかし、内はすばと第二の平歯とは移動部材の軸方向の
同じ位置に形成しておくことが好ましく、そうすること
で移動部材の小型化を図ることができる。
Further, in the above embodiment, the inner space 31
C and 35C and the second spur gears 31A and 35A were formed at the same position in the axial direction of the plate drum gears 31 and 35, but the inner splines and the second spur gears were formed in the axial direction. The phase adjusting mechanism does not have to be formed at the same position, and for example, as shown in FIG. 4, the inner spacer 61 and the second spur tooth 62 are formed at different positions in the axial direction of the moving member 63. It may be 60.
However, it is preferable that the inner rib and the second spur tooth are formed at the same position in the axial direction of the moving member, and by doing so, the moving member can be downsized.

【0060】そして、前記実施例では、外はすば30
C,36Cは各版胴20,23の軸24,27に直接に
固定されていたが、図4に示すように、外はすば65を
版胴66とは異なる軸線上に設けてもよい。しかし、外
はすばは、駆動対象の軸に直接に固定しておくことが好
ましく、そうすることで駆動対象の軸まわりの構造を簡
略化することができる。
In the above embodiment, the outer spacer 30
Although C and 36C are directly fixed to the shafts 24 and 27 of the plate cylinders 20 and 23, respectively, as shown in FIG. 4, the outer collar 65 may be provided on an axis different from that of the plate cylinder 66. . However, the outer leaf is preferably fixed directly to the shaft to be driven, and by doing so, the structure around the shaft to be driven can be simplified.

【0061】また、前記実施例では、内はすば31C,
35Cは駆動源側に設けられ、外はすば30C,36C
は駆動対象である各版胴20,23側に設けられていた
が、これらの関係は逆であってもよく、例えば、図5に
示すように、外はすば71を駆動源側に設け、内はすば
72を駆動対象側に設けた位相調整機構70としてもよ
い。
In the above embodiment, the inner spacer 31C,
35C is provided on the side of the drive source, and the outer edges are 30C and 36C.
Are provided on the side of the plate cylinders 20 and 23 to be driven, but these relationships may be reversed. For example, as shown in FIG. 5, the outer leaf 71 is provided on the drive source side. Alternatively, the inner collar 72 may be the phase adjusting mechanism 70 provided on the driven side.

【0062】また、前記実施例では、内はすば31Cを
有する版胴歯車31が移動部材43を構成し、外はすば
30Cを有する外はすば歯車30は移動部材とされてい
なかった(軸方向に移動不可能となっていた)が、図6
に示すように、外はすば81Cが形成された移動部材8
1を駆動機構82により軸方向に移動させるとともに、
内はすば83Cが形成された移動部材83を駆動機構8
4により軸方向に移動させる構成を有する位相調整機構
80としてもよい。つまり、位相調整機構80は、外は
すば81Cと内はすば83Cとの両方が印刷機のフレー
ムに対して軸方向に移動する構成となっている。そし
て、このような位相調整機構80を構成する場合には、
第一の平歯86Aと第二の平歯86Bとにより構成され
る許容手段86および第一の平歯87Aと第二の平歯8
7Bとにより構成される許容手段87の二つの許容手段
を設けておけばよい。
In the above embodiment, the plate drum gear 31 having the inner helical 31C constitutes the moving member 43, and the outer helical gear 30 having the outer helical 30C is not the moving member. (It was impossible to move in the axial direction)
As shown in FIG.
1 is moved in the axial direction by the drive mechanism 82,
The moving member 83 having the inner rib 83C is formed on the drive mechanism 8
Alternatively, the phase adjusting mechanism 80 may be configured to move in the axial direction by means of 4. That is, the phase adjusting mechanism 80 is configured such that both the outer collar 81C and the inner collar 83C move in the axial direction with respect to the frame of the printing machine. When configuring the phase adjusting mechanism 80 as described above,
The permitting means 86 constituted by the first spur tooth 86A and the second spur tooth 86B and the first spur tooth 87A and the second spur tooth 8
It is only necessary to provide two permitting means, ie, permitting means 87 constituted by 7B.

【0063】さらに、前記実施例では、駆動源からの入
力は、中間歯車32を介して下側の版胴歯車31に対し
て加えられていたが、下側の版胴歯車31に限定される
ものではなく、下側のゴム胴歯車33、上側のゴム胴歯
車34、あるいは上側の版胴歯車35に対して加えられ
るようにしてもよい。
Further, in the above embodiment, the input from the drive source is applied to the lower plate drum gear 31 via the intermediate gear 32, but it is limited to the lower plate drum gear 31. Instead of the above, it may be added to the lower blanket gear 33, the upper blanket gear 34, or the upper plate barrel gear 35.

【0064】また、前記実施例では、駆動対象は各版胴
20,23とされていたが、本発明の位相調整機構は、
位相調整が必要とされる(特に微調整が必要とされる)
部分であれば、印刷機内のいずれの部分の位相調整に適
用してもよい。
Further, in the above-mentioned embodiment, the object to be driven is the plate cylinders 20 and 23, but the phase adjusting mechanism of the present invention is
Phase adjustment required (especially fine adjustment required)
If it is a portion, it may be applied to the phase adjustment of any portion in the printing machine.

【0065】[0065]

【発明の効果】以上に述べたように本発明によれば、駆
動対象と駆動源との間の駆動伝達経路の途中に外はすば
と内はすばとの噛み合い部分を設けてこれらを軸方向に
相対移動させることにより駆動対象の位相調整を行うの
で、これらの噛み合い部分のバックラッシを小さくする
ことができ、かつ、バックラッシが変化するようなこと
もないため、見当合わせの精度を向上でき、印刷品質を
良好にできるうえ、見当合わせ時間の短縮を図ることが
できるとともに、伝動系列を平歯による伝達構造として
簡易化することによりコスト低減を図ることができると
いう効果がある。
As described above, according to the present invention, the meshing portion of the outer and inner ribs is provided in the middle of the drive transmission path between the driven object and the drive source. Since the phase of the object to be driven is adjusted by making relative movement in the axial direction, the backlash of these meshing parts can be reduced, and since the backlash does not change, the registration accuracy can be improved. The printing quality can be improved, the registration time can be shortened, and the cost can be reduced by simplifying the transmission system as the transmission structure using the spur teeth.

【0066】また、第一の平歯と第二の平歯とにより許
容手段を構成した場合には、駆動伝達経路に特殊な構造
の摺動機構を設ける必要がなくなるので、駆動伝達経路
の構造を簡易化できるうえ、駆動伝達経路が平歯による
伝達構造となるので、コスト低減を図ることができると
いう効果がある。
Further, when the permitting means is composed of the first spur tooth and the second spur tooth, it is not necessary to provide a sliding mechanism having a special structure in the drive transmission path, so that the structure of the drive transmission path is formed. In addition to the simplification, the drive transmission path has the transmission structure with the spur teeth, so that the cost can be reduced.

【0067】さらに、このような第一の平歯と第二の平
歯とにより許容手段を構成する場合において、移動手段
の移動部材に、内はすばを形成しかつこの内はすばの外
側であって軸方向の同じ位置に第二の平歯を形成すると
ともに、外はすばを、駆動対象の軸に直接に固定してお
く場合には、移動部材を小型化できるうえ、駆動対象の
軸まわりの構造を簡略化することができるので、より一
層の構造の簡易化、コスト低減を図ることができるとい
う効果がある。
Further, in the case where the first flat tooth and the second flat tooth constitute the permitting means, the moving member of the moving means has inner ribs formed therein and inner ribs formed therein. When the second spur tooth is formed on the outer side at the same position in the axial direction and the outer leaf is fixed directly to the shaft to be driven, the moving member can be made smaller and the drive Since the structure around the target axis can be simplified, there is an effect that the structure can be further simplified and the cost can be reduced.

【0068】また、移動手段の駆動機構を、ベアリング
を介して前記移動部材に対して相対回転可能かつ軸方向
に相対移動不可能に接続された中間部材と、この中間部
材に設けられた雌ねじと噛み合う雄ねじを有しかつその
回転により前記中間部材を移動させるねじ軸と、このね
じ軸を回転させるモータと、印刷機のフレームに対する
前記中間部材の回転を止める回り止め部材とを備えた構
成とした場合には、モータの入切操作という簡単な操作
で位相調整を実現できるという効果がある。
Further, the driving mechanism of the moving means is connected to the moving member via a bearing so as to be relatively rotatable and axially immovable relative to each other, and an internal thread provided on the intermediate member. A configuration is provided that includes a male screw and a screw shaft that moves the intermediate member by rotation thereof, a motor that rotates the screw shaft, and a detent member that stops rotation of the intermediate member with respect to the frame of the printing machine. In this case, there is an effect that the phase adjustment can be realized by a simple operation of turning the motor on and off.

【0069】そして、本発明の位相調整機構を、印刷機
内の版胴の位相調整に適用した場合には、版胴がタテ見
当合わせのための微調整を必要とする部分であることか
ら、本発明の効果をより一層発揮させることができると
いう効果がある。
When the phase adjusting mechanism of the present invention is applied to the phase adjustment of the plate cylinder in the printing machine, the plate cylinder is a portion that requires fine adjustment for vertical registration. There is an effect that the effect of the invention can be further exerted.

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

【図1】本発明の一実施例を示す概略平面図。FIG. 1 is a schematic plan view showing an embodiment of the present invention.

【図2】前記実施例を示す立面図。FIG. 2 is an elevational view showing the embodiment.

【図3】前記実施例を示す図1の部分的な拡大図。FIG. 3 is a partially enlarged view of FIG. 1 showing the embodiment.

【図4】本発明の変形例を示す概略構成図。FIG. 4 is a schematic configuration diagram showing a modified example of the present invention.

【図5】本発明の別の変形例を示す概略構成図。FIG. 5 is a schematic configuration diagram showing another modification of the present invention.

【図6】本発明のさらに別の変形例を示す概略構成図。FIG. 6 is a schematic configuration diagram showing still another modified example of the present invention.

【図7】第一従来例を示す立面図。FIG. 7 is an elevation view showing a first conventional example.

【図8】第二従来例を示す立面図。FIG. 8 is an elevational view showing a second conventional example.

【図9】第二従来例を示す平面図。FIG. 9 is a plan view showing a second conventional example.

【符号の説明】[Explanation of symbols]

10,60,70,80 位相調整機構 12 フレーム 20,23,66 駆動対象である版胴 21,22 ゴム胴 30C,36C,65,71,81C 外はすば 31C,35C,61,72,83C 内はすば 30,36 外はすば歯車 31,35 移動部材を構成する版胴歯車 32 中間歯車 34 ゴム胴歯車 32A,34A,86A,87A 第一の平歯 31A,35A,62,86B,87B 第二の平歯 40 移動手段 42,82,84 駆動機構 43,63,81,83 移動部材 44 ベアリング 45 中間部材 46 ねじ軸 47 モータ 48 回り止め部材 50,51,86,87 許容手段 10, 60, 70, 80 Phase adjustment mechanism 12 Frame 20, 23, 66 Plate cylinder 21, 22 which is a driven object Blanket cylinder 30C, 36C, 65, 71, 81C Inner helical 30,36 Outer helical gear 31,35 Plate drum gear 32 constituting moving member 32 Intermediate gear 34 Rubber blanket gear 32A, 34A, 86A, 87A First spur gear 31A, 35A, 62, 86B, 87B Second spur tooth 40 Moving means 42, 82, 84 Drive mechanism 43, 63, 81, 83 Moving member 44 Bearing 45 Intermediate member 46 Screw shaft 47 Motor 48 Rotation stop member 50, 51, 86, 87 Allowing means

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 印刷機内の各部に設けられた駆動対象と
これを駆動する駆動源との間の駆動伝達経路の途中に設
けられて前記駆動対象の前記駆動源に対する回転位相調
整を行う位相調整機構であって、前記駆動伝達経路の途
中に設けられた外はすばと、前記駆動伝達経路の途中に
設けられて前記外はすばと噛み合う内はすばと、前記外
はすばと前記内はすばとの噛み合い状態を保持しながら
これらを軸方向に相対移動させる移動手段と、前記駆動
対象と前記駆動源との間の回転伝達を保持しながら前記
相対移動を許容する許容手段とを備えたことを特徴とす
る位相調整機構。
1. A phase adjustment, which is provided in the middle of a drive transmission path between a drive target provided in each part of a printing press and a drive source for driving the drive target, for performing a rotational phase adjustment of the drive target with respect to the drive source. A mechanism, an outer leaf provided in the middle of the drive transmission path, an inner leaf provided in the middle of the drive transmission path and meshing with the outer leaf, and an outer leaf A moving means for relatively moving the inner and the inner ribs in the axial direction while maintaining the meshed state, and a permitting means for permitting the relative movement while maintaining the rotation transmission between the driven object and the drive source. And a phase adjustment mechanism characterized by including.
【請求項2】 請求項1に記載した位相調整機構におい
て、前記移動手段は、前記外はすばまたは前記内はすば
のいずれかが形成された移動部材と、前記外はすばと前
記内はすばとの噛み合い状態を保持しながら前記移動部
材を軸方向に移動させる駆動機構とを備え、 前記許容手段は、前記駆動伝達経路の途中に設けられた
歯車に形成された第一の平歯と、前記移動部材に形成さ
れて前記第一の平歯と噛み合う第二の平歯とを備え、 前記移動部材は、前記第一の平歯と前記第二の平歯との
噛み合い状態が保持される範囲で移動されることを特徴
とする位相調整機構。
2. The phase adjusting mechanism according to claim 1, wherein the moving means includes a moving member formed with either the outer leaf or the inner leaf, the outer leaf and the outer member. A driving mechanism for moving the moving member in the axial direction while maintaining the meshing state with the inner rib, the permitting means is a first gear formed on a gear provided in the middle of the drive transmission path. A spur tooth and a second spur tooth formed on the moving member and meshing with the first spur tooth, wherein the moving member is in a meshed state of the first spur tooth and the second spur tooth. A phase adjusting mechanism, wherein the phase adjusting mechanism is moved within a range in which is held.
【請求項3】 請求項2に記載した位相調整機構におい
て、前記移動手段の移動部材には、前記内はすばおよび
この内はすばの外側であって軸方向の同じ位置に前記第
二の平歯が形成され、 前記外はすばは、前記駆動対象の軸に直接に固定されて
いることを特徴とする位相調整機構。
3. The phase adjusting mechanism according to claim 2, wherein the moving member of the moving means has the second inner collar and the second inner collar outside the inner collar at the same axial position. Phase adjusting mechanism, wherein the spur teeth are formed, and the outer spacer is directly fixed to the shaft to be driven.
【請求項4】 請求項2または請求項3に記載した位相
調整機構において、前記移動手段の駆動機構は、ベアリ
ングを介して前記移動部材に対して相対回転可能かつ軸
方向に相対移動不可能に接続された中間部材と、この中
間部材に設けられた雌ねじと噛み合う雄ねじを有しかつ
その回転により前記中間部材を移動させるねじ軸と、こ
のねじ軸を回転させるモータと、印刷機のフレームに対
する前記中間部材の回転を止める回り止め部材とを備え
たことを特徴とする位相調整機構。
4. The phase adjusting mechanism according to claim 2 or 3, wherein the drive mechanism of the moving means is rotatable relative to the moving member via a bearing and is not relatively movable in the axial direction. A connected intermediate member, a screw shaft that has a male screw that meshes with a female screw provided on the intermediate member, and that rotates the intermediate member by its rotation, a motor that rotates the screw shaft, and a frame for the printing machine. A phase adjusting mechanism comprising a rotation stopping member for stopping rotation of an intermediate member.
【請求項5】 請求項1から請求項4のいずれかに記載
した位相調整機構において、前記駆動対象は印刷機内の
版胴であることを特徴とする位相調整機構。
5. The phase adjusting mechanism according to claim 1, wherein the drive target is a plate cylinder in a printing machine.
JP04105994A 1994-03-11 1994-03-11 Phase adjustment mechanism Expired - Lifetime JP3296918B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP04105994A JP3296918B2 (en) 1994-03-11 1994-03-11 Phase adjustment mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP04105994A JP3296918B2 (en) 1994-03-11 1994-03-11 Phase adjustment mechanism

Publications (2)

Publication Number Publication Date
JPH07246695A true JPH07246695A (en) 1995-09-26
JP3296918B2 JP3296918B2 (en) 2002-07-02

Family

ID=12597855

Family Applications (1)

Application Number Title Priority Date Filing Date
JP04105994A Expired - Lifetime JP3296918B2 (en) 1994-03-11 1994-03-11 Phase adjustment mechanism

Country Status (1)

Country Link
JP (1) JP3296918B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1017485A3 (en) * 2007-03-08 2008-10-07 Picanol Nv Drive system for weaving loom component, has axially adjustable slanting teeth provided between drive and driven shafts
CN103963450A (en) * 2014-05-09 2014-08-06 于法周 Double-tooth regulating roller for driving distributor roller
CN108930760A (en) * 2018-07-19 2018-12-04 苏州廉展精密机电有限公司 A kind of phase on-line tuning mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1017485A3 (en) * 2007-03-08 2008-10-07 Picanol Nv Drive system for weaving loom component, has axially adjustable slanting teeth provided between drive and driven shafts
CN103963450A (en) * 2014-05-09 2014-08-06 于法周 Double-tooth regulating roller for driving distributor roller
CN108930760A (en) * 2018-07-19 2018-12-04 苏州廉展精密机电有限公司 A kind of phase on-line tuning mechanism

Also Published As

Publication number Publication date
JP3296918B2 (en) 2002-07-02

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