JPH0256166B2 - - Google Patents
Info
- Publication number
- JPH0256166B2 JPH0256166B2 JP61086148A JP8614886A JPH0256166B2 JP H0256166 B2 JPH0256166 B2 JP H0256166B2 JP 61086148 A JP61086148 A JP 61086148A JP 8614886 A JP8614886 A JP 8614886A JP H0256166 B2 JPH0256166 B2 JP H0256166B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- pipe
- core
- core bar
- molding
- 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 - Lifetime
Links
- 239000002184 metal Substances 0.000 claims description 34
- 229910052751 metal Inorganic materials 0.000 claims description 34
- 150000002739 metals Chemical class 0.000 claims description 12
- 238000000465 moulding Methods 0.000 claims description 11
- 238000000605 extraction Methods 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 235000010676 Ocimum basilicum Nutrition 0.000 description 1
- 240000007926 Ocimum gratissimum Species 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
【発明の詳細な説明】
(産業上の利用分野)
この発明は管のひも出し機への管供給取出装置
に関する。ひも出し機とは金属管に局部内圧を加
えて第2図のような輪状膨出部Bを作る装置であ
る。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a tube supply and removal device for a tube stringer. A string drawing machine is a device that applies local internal pressure to a metal tube to create an annular bulge B as shown in FIG.
(従来の技術)
管のひも出し機には、スピニング加工によるも
のと、バルジ加工によるものとある。この発明は
後者に属するが、従来のバルジ加工によるひも出
し機は、管を所要形状の型金で包み、管内に圧油
又は成形用ゴムによる強圧を加えるものである。
このひも出し機は強圧を用いるため準備作業に諸
注意を要するが、管の供給、取出し作業そのもの
は比較的簡単であつた。(Prior Art) There are two types of pipe stringing machines: those that use spinning processing and those that use bulge processing. This invention belongs to the latter category, but the conventional bulge-forming tying machine wraps a pipe with a mold of a desired shape and applies strong pressure inside the pipe with pressurized oil or molding rubber.
Although this string pulling machine uses strong pressure and requires careful preparation, the work of supplying and taking out the tubes itself was relatively simple.
(発明が解決しようとする問題点)
この発明は本発明者がさきに開発し、特開昭59
−133021号公報で公開ずみの、芯金を使つたひも
出し機への機械化された管供給取出装置を目的と
する。(Problem to be solved by the invention) This invention was developed earlier by the present inventor, and
The object of this invention is a mechanized pipe supply and removal device for a string drawing machine using a metal core, which was disclosed in Publication No. 133021.
上記公開発明は、加工すべき管にゴム等の成形
用弾性体とこれを挾む前後の芯金を挿入し、管の
外周に金型を当て、上記前後の芯金により成形用
弾性体を挾圧して、管壁の一部に輪状膨出部を作
るひも出し機である。このひも出し機への管供給
取出装置であるから、
従来のバジル式ひも出し機に無かつた前後二本
の芯金に、供給した長い管を差込んだり、抜き出
したりしなければならない。管の供給、取出しに
手間どれば、折角の上記発明が非能率な装置とし
て実用し得なくなるおそれがあつた。 The above-mentioned disclosed invention involves inserting a molding elastic body such as rubber into a tube to be processed, and front and rear core metals that sandwich it, applying a mold to the outer periphery of the tube, and molding the molding elastic body using the front and rear core metals. This is a stringing machine that creates an annular bulge on a part of the tube wall by squeezing it. Since this is a tube supply/removal device for this stringing machine, the long tube supplied must be inserted into and extracted from two core metals at the front and back, which were absent in the conventional Basil type stringing machine. If it took time to supply and take out the tubes, there was a risk that the above-mentioned invention would become inefficient and could not be put to practical use.
(問題点を解決するための手段)
この発明はのひも出し機への管供給取出装置
は、加工すべき管にゴム等の成形用弾性体とこれ
を挾む前後の芯金を挿入し、管の外周に金型を当
て、上記前後の芯金により成形用弾性体を挾圧し
て、管壁の一部に輪状膨出部を作るひも出し機へ
の管供給取出装置であつて、上記前後の芯金の一
方の端面の軸孔に、他方の端面の突出軸をゆるみ
なく、十分な長さ差し込み、予め上記突出軸の付
け根にはめた成形用弾性環体を挾んで、前後一体
に接続した芯金を、水平に片持支持し、昇降する
芯金昇降支持機構と、この昇降支持機構により、
ひも出し機の管加工位置と高さ異る管供給位置に
支持された上記芯金を管をはめる水平案内材、押
込機構、及び水平案内材への新しい管の転入機構
と、同様に、さらに別の高さの取出し位置に支持
された上記芯金から管を抜出す水平走行台付き抜
出機構及び製品置場への転下機構とを備えること
を特徴とする管のひも出し機への管供給取出装置
である。(Means for Solving the Problems) The present invention provides a tube supply and take-out device for a string drawing machine, which inserts a molding elastic body such as rubber into a tube to be processed, and core metals before and after the elastic body that clamps the elastic body, and A tube feeding/retrieval device for a stringing machine which applies a mold to the outer periphery of the tube and presses the elastic body for molding between the front and rear core metals to form an annular bulge in a part of the tube wall, the device comprising: Insert the protruding shaft on the other end into the shaft hole on one end of the front and rear metal cores for a sufficient length without loosening, sandwich the elastic ring for molding that has been fitted in advance to the base of the protruding shaft, and assemble the front and rear as one body. A core metal lifting support mechanism that cantilevers the connected core metal horizontally and raises and lowers it, and this lifting support mechanism,
Similarly, a horizontal guide member for fitting the pipe into the core bar supported at a pipe supply position different in height from the pipe processing position of the string drawing machine, a pushing mechanism, and a mechanism for transferring a new pipe to the horizontal guide member; A pipe to a pipe stringing machine, characterized in that it is equipped with an extraction mechanism with a horizontal running table for extracting the tube from the core bar supported at a different height extraction position, and a mechanism for lowering the tube to a product storage area. It is a supply and take-out device.
(作 用)
この発明のひも出し機への管供給取出装置は、
ひも出し機へ管を供給したり、ひも出し機から管
を取出すものでなく、供給装置、取出装置がそれ
ぞれの空間を占めて独立した量産用設備であり、
それらの管を一本化した芯金が循環して管を受取
り、加工し、抜取る新方式を開いた。(Function) The pipe supply and take-out device for the string pulling machine of this invention has the following features:
It is not a device that supplies tubes to a string pulling machine or takes out tubes from a string drawing machine, but is an independent mass production facility in which the feeding device and take-out device occupy their own space.
This has opened up a new method in which the core metal that unifies these tubes circulates to receive, process, and extract the tubes.
この構想を実現するため、成形用弾性環体を挾
んで差込み接続した前後の芯金は、ゆるみなく十
分な長さ嵌合させて、管のはめ込み、抜取りに、
伴う外力、振動を片持支持で耐え得るようにして
いる。 In order to realize this concept, the front and rear core metals, which are inserted and connected by sandwiching the elastic ring for molding, are fitted together for a sufficient length without loosening, making it easy to fit and remove the tube.
Cantilever support is used to withstand the accompanying external forces and vibrations.
供給装置の管供給装置、取出装置の管取出し位
置はひも出し機の加工位置と異る高さに設け、循
環させる芯金は芯金昇降支持機構が片持支持で移
動させ、各位置でそのまゝ支持して管のはめ、は
ずし、加工を行う。 The tube supplying device of the feeding device and the tube take-out position of the take-out device are set at different heights from the processing position of the string pulling machine, and the core metal to be circulated is moved with cantilever support by the core metal lifting support mechanism, and It supports, inserts, removes, and processes pipes.
長い管を長い前後芯金にはめ、はずしするに
は、供給、取出し位置を加工位置と異る高さにし
た空間配置が有効で、この発明は管供給位置に水
平案内材、押込機構を設け、さらにその水平案内
材へ新しい管の転入機構を設けて、人手を不要に
している。また取出装置には水平走行台付き抜出
機構と、抜出した管を製品置場へ転下させる機構
を加えて、完全に機械化している。 In order to fit and remove a long pipe from a long front and back core metal, it is effective to have a spatial arrangement in which the supply and take-out positions are at different heights from the processing position, and this invention provides a horizontal guide and a pushing mechanism at the pipe supply position. Furthermore, a new pipe transfer mechanism is provided to the horizontal guide member, eliminating the need for manpower. The extraction device is completely mechanized by adding an extraction mechanism with a horizontal running table and a mechanism for lowering the extracted tube to the product storage area.
こうして新しい管をはめた芯金は、上述の加
工、取出し、供給の三位置の各工程を繰返すので
ある。 In this way, the core bar fitted with a new tube undergoes the above-mentioned processing, removal, and supply processes at three positions.
(実施例)
最初にこの発明の対象となる特許出願中のひも
出し機の作用を簡単に説明する。第2図はひも出
し加工を4回行つた管の断面を示す。第7〜10
図に一回のひも出し工程を示す。第7図は弾性ゴ
ムGを挾んだ芯金1,1′に管Pをはめ、その外
周に一対の金型10aを当てた状態、第8図は芯
金1,1′により弾性ゴムGを挾圧し膨出させた
状態、第9図は芯金1,1′を元に戻した状態、
第10図は一対の金型10aの間隔を詰めて、所
要形状の輪状膨出部Bとした状態である。(Example) First, the operation of the lace pulling machine for which the patent application is pending will be briefly explained. Figure 2 shows a cross-section of a tube that has been subjected to stringing four times. 7th to 10th
The figure shows a single string pulling process. Fig. 7 shows a state in which the tube P is fitted onto the core metals 1, 1' which sandwich the elastic rubber G, and a pair of molds 10a are applied to the outer periphery of the pipe P, and Fig. 8 shows a state in which the elastic rubber G is held between the core metals 1, 1'. Figure 9 shows the state in which the core metals 1 and 1' are returned to their original positions.
FIG. 10 shows a state in which the distance between the pair of molds 10a is narrowed to form an annular bulge B having a desired shape.
次に第1〜6図により、この発明のひも出し機
への管供給取出装置を説明する。 Next, referring to FIGS. 1 to 6, a description will be given of the apparatus for supplying and extracting a tube to a string drawing machine according to the present invention.
図面はこの発明の一実施例で、芯金1は第1,
3図に示すように、前後芯金1a,1bが環状成
形ゴムGを間にはさんだ差込み接続により一本化
したものである。上記芯金昇降支持機構を2、は
め込み用水平案内材を3、押込機構を4、抜出し
機構を5、加工位置をX、供給位置をY、取出し
位置をZ、管をPとしている。 The drawing shows one embodiment of the present invention, in which the core metal 1 is a first,
As shown in FIG. 3, the front and rear core bars 1a and 1b are integrated into one piece by inserting an annular molded rubber G between them. The core bar lifting and lowering support mechanism is 2, the horizontal guide for fitting is 3, the pushing mechanism is 4, the extracting mechanism is 5, the processing position is X, the supplying position is Y, the extracting position is Z, and the pipe is P.
ひも出し加工を受ける管Pはホツパー6に入れ
られ、その底から一本ずつ、左右の円板7の切込
みに落込み、両円板7が回転すると傾斜案内板8
上に落ち、転進して水平案内材3のローラ上に落
付き、待機する。 The tubes P to be stringed out are put into the hopper 6, and drop into the notches of the left and right disks 7 one by one from the bottom of the hopper 6, and when both disks 7 rotate, the inclined guide plate 8
It falls onto the top, turns and lands on the rollers of the horizontal guide member 3, where it waits.
一方、芯金1は昇降支持機構2により、一端を
固定して水平に片持ち支持され、X,Y,Zの三
位置を昇降する。その駆動機構は、この例では第
6図の流体圧シリンダ9により、垂直案内材沿い
に芯金固定部が昇降し、決められた高さに停止す
る。 On the other hand, the core metal 1 is horizontally cantilevered with one end fixed by an elevating support mechanism 2, and is moved up and down in three positions, X, Y, and Z. In this example, the drive mechanism is such that the core metal fixing part moves up and down along the vertical guide by a fluid pressure cylinder 9 shown in FIG. 6, and stops at a predetermined height.
加工位置Xで、前記出願中の発明方法により、
第1図の金型部10a、芯金加圧部10bからな
る加工機構10が働いて、所要の輪状膨出部を作
り終えたら、芯金1を取出し位置Zへ上げる。そ
こには抜出し機構5が待機しており、直ちにその
流体圧シリンダ5aにより開閉腕5bを閉じて管
Pを挾む。この開閉腕5bは水平走行台5cに取
付けられており、走行台5cは水平レール5d、
これに伴う循環チエン5e、チエン駆動部5fに
より管軸に平行して走る。こうして管Pが芯金1
から抜け出たら開閉腕5bを開いて、管Pを解放
し、取出し案内板11上を転下させて図示しない
製品置場へ落とす。案内板11は水平案内材3の
基台等に付いている。 At processing position X, by the method of the pending invention,
After the processing mechanism 10 consisting of the mold part 10a and the metal core pressurizing part 10b shown in FIG. The extraction mechanism 5 is waiting there, and immediately closes the opening/closing arm 5b with its fluid pressure cylinder 5a to sandwich the pipe P. This opening/closing arm 5b is attached to a horizontal traveling platform 5c, and the traveling platform 5c has horizontal rails 5d,
The associated circulation chain 5e and chain drive section 5f run parallel to the tube axis. In this way, the pipe P is
Once the pipe has come out of the pipe, the opening/closing arm 5b is opened to release the pipe P, and the pipe P is allowed to fall down on the take-out guide plate 11 to a product storage area (not shown). The guide plate 11 is attached to the base of the horizontal guide member 3 or the like.
裸になつた芯金1は供給位置Yは下ろす。この
供給位置Yの延長線上には、前述のようにホツパ
ー6から一本取り出して、水平案内材3のローラ
上に待機させた新しい管Pが待つている。そこ
で、芯金1が来たら直ちに押込機構4が始動し
て、管Pを芯金1へ押しはめる。その押込機構4
はこの場合、丸棒である押具4a、水平走行台4
b、循環チエン4c、その駆動部4dを有し、走
行台4bのレールは抜出し機構5のレール5dを
共用している。この押込機構4により、新しい管
Pが芯金1の全長、またはその途中のストツパに
当るまで押しはめられる。なお第5,6図では、
レール5dの支持機構を省略した。 The bare core metal 1 is lowered to the supply position Y. On the extension line of this supply position Y, a new pipe P is waiting, which has been taken out from the hopper 6 and placed on the rollers of the horizontal guide member 3 as described above. Therefore, as soon as the core metal 1 arrives, the pushing mechanism 4 is started and the pipe P is pushed into the core metal 1. The pushing mechanism 4
In this case, the push tool 4a, which is a round bar, and the horizontal traveling base 4
b, a circulation chain 4c, and a drive section 4d thereof, and the rails of the traveling platform 4b share the rails 5d of the extraction mechanism 5. This pushing mechanism 4 pushes the new pipe P into the core metal 1 over its entire length or until it hits a stopper in the middle. In addition, in Figures 5 and 6,
The support mechanism for the rail 5d is omitted.
制御装置の図面、説明は略すが、上述の管の供
給、加工、取出しの各工程動作を検出装置で検出
し、次々とシリーズ制御して全自動化している。 Although drawings and explanations of the control device are omitted, the above-mentioned pipe supply, processing, and extraction process operations are detected by a detection device, and are controlled in series one after another for full automation.
この発明の実施態様は上記実施例に限らず、使
用条件に応じて、機械設計者の周知技術により多
様に変化、応用し得ることは、いうまでもない。 It goes without saying that the embodiments of the present invention are not limited to the above-mentioned embodiments, but can be varied and applied in a variety of ways depending on usage conditions and using well-known techniques of machine designers.
(発明の効果)
この発明は、さきに本発明者が開発した前記発
明のひも出し機が、従来のこの種装置にない芯金
を用い、その芯金が前後二本に分かれているた
め、加工すべき管のはめ込み、抜出しに手間どる
難点を完全に解消した。(Effects of the Invention) This invention has the advantage that the lace pulling machine of the invention previously developed by the present inventor uses a core metal that is not found in conventional devices of this kind, and the core metal is divided into two parts, the front and the front. This completely eliminates the difficulty of fitting and extracting the pipe to be processed.
すなわち当初、前後芯金の芯合わせのために設
けていたおす、めす差込み部を、十分長くゆるみ
のない強力な構造に変え、両者を強度上、一体化
し得る差込み接続部とする事により、片持支持の
まゝ各位置へ繰返し循環移動し、そのまゝ管のは
め込み、抜き出しを行い得るようにした。 In other words, the male and female insertion parts that were originally provided for centering the front and rear cores were changed to a sufficiently long and strong structure that would not loosen, and by creating a insertion connection that could integrate the two for strength, the cantilever The pipe was moved repeatedly to each position while being supported, and the tube could be inserted and removed at the same time.
この水平姿勢の昇降移動により、一本化した芯
金を供給、加工、取出しの三位置につけ、各工程
を別の位置で行うようにしたから、各工程の設備
を相互干渉することなく充分に整えられ、管供
給、取出装置として完全な機械化の効果をあげ得
たのである。 By vertical movement in this horizontal position, the unified core metal can be placed in three positions: feeding, processing, and taking out, and each process is performed at a different position, so the equipment for each process can be used without mutual interference. It was possible to achieve the effect of complete mechanization as a tube supply and extraction device.
第1図はこの発明一実施例斜視図、第2図は管
のひも出し加工部断面説明図、第3図は第1図の
芯金の差込み接続部の拡大説明図、第4図は管を
ホツパーから一本ずつ取出す機構の断面説明図、
第5,6図は第1図の実施例の平面図、立面図、
第7,8,9,10図はひも出し加工の各工程説
明図である。
1(1a,1b)……芯金、2……昇降支持機
構、3……水平案内材、4……押込機構、5……
抜出し機構。
Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is a cross-sectional explanatory view of the stringed part of the pipe, Fig. 3 is an enlarged explanatory view of the insert connection part of the cored metal in Fig. 1, and Fig. 4 is an explanatory view of the tube. A cross-sectional diagram of the mechanism for taking out the hopper one by one.
Figures 5 and 6 are a plan view and an elevation view of the embodiment shown in Figure 1;
Figures 7, 8, 9, and 10 are explanatory diagrams of each step of the string drawing process. 1 (1a, 1b)...Core metal, 2...Elevating support mechanism, 3...Horizontal guide material, 4...Pushing mechanism, 5...
Extraction mechanism.
Claims (1)
を挾む前後の芯金を挿入し、管の外周に金型を当
て、上記前後の芯金により成形用弾性体を挾圧し
て、管壁の一部に輪状膨出部を作るひも出し機へ
の管供給取出装置であつて、 上記前後の芯金の一方の端面の軸孔に、他方の
端面の突出軸をゆるみなく、十分な長さ差し込
み、予め上記突出軸の付け根にはめた成形用弾性
環体を挾んで、前後一体に接続した芯金を、水平
に片持支持し、昇降する芯金昇降支持機構と、 この昇降支持機構により、ひも出し機の管加工
位置と高さ異る管供給位置に支持された上記芯金
に管をはめる水平案内材、押込機構、及び水平案
内材への新しい管の転入機構と、 同様に、さらに別の高さの取出し位置に支持さ
れた上記芯金から管を抜出す水平走行台付き抜出
機構及び製品置場への転下機構と、 を備えることを特徴とする管のひも出し機への管
供給取出装置。[Scope of Claims] 1. Insert a molding elastic body such as rubber into a tube to be processed, and front and rear core metals that sandwich it, apply a mold to the outer periphery of the tube, and use the front and rear core metals to create a molding elastic body. A tube supply/removal device for a stringing machine which creates an annular bulge in a part of the tube wall by clamping the body, and the tube is inserted into the shaft hole of one end surface of the above-mentioned front and rear core metals, and the other end surface protrudes. Insert the shaft to a sufficient length without loosening it, sandwich the elastic ring for molding that has been fitted in advance to the base of the protruding shaft, and horizontally cantilever support the core bar, which is connected front and rear as one, to raise and lower the core bar. A support mechanism, a horizontal guide member that fits the pipe into the core bar supported at a pipe supply position that is different in height from the pipe processing position of the string pulling machine, a pushing mechanism, and a new horizontal guide member. A tube transfer mechanism; Similarly, an extraction mechanism with a horizontal traveling platform for extracting the tube from the core bar supported at a removal position at another height, and a mechanism for lowering the tube to a product storage area. Features: A device for supplying and extracting tubes to a tube stringing machine.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61086148A JPS62244530A (en) | 1986-04-16 | 1986-04-16 | Pipe feeding and takeoff device for extracting machine of pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61086148A JPS62244530A (en) | 1986-04-16 | 1986-04-16 | Pipe feeding and takeoff device for extracting machine of pipe |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62244530A JPS62244530A (en) | 1987-10-24 |
JPH0256166B2 true JPH0256166B2 (en) | 1990-11-29 |
Family
ID=13878654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP61086148A Granted JPS62244530A (en) | 1986-04-16 | 1986-04-16 | Pipe feeding and takeoff device for extracting machine of pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62244530A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105414302A (en) * | 2015-12-01 | 2016-03-23 | 保隆(安徽)汽车配件有限公司 | Efficient pipe forming machine |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5013520B2 (en) * | 2007-08-29 | 2012-08-29 | 東洋ゴム工業株式会社 | Cylinder drawing equipment |
JP5604259B2 (en) * | 2010-10-25 | 2014-10-08 | 本田技研工業株式会社 | Bent pipe manufacturing equipment |
CN105344857B (en) * | 2015-12-22 | 2018-05-04 | 浙江名江南家居有限公司 | A kind of efficient necking machine |
CN110732599A (en) * | 2018-07-20 | 2020-01-31 | 富泰华工业(深圳)有限公司 | Fixing device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59133021A (en) * | 1983-01-21 | 1984-07-31 | Seiwa Yoko Kk | Method and apparatus for manufacturing bulged pipe |
-
1986
- 1986-04-16 JP JP61086148A patent/JPS62244530A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59133021A (en) * | 1983-01-21 | 1984-07-31 | Seiwa Yoko Kk | Method and apparatus for manufacturing bulged pipe |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105414302A (en) * | 2015-12-01 | 2016-03-23 | 保隆(安徽)汽车配件有限公司 | Efficient pipe forming machine |
Also Published As
Publication number | Publication date |
---|---|
JPS62244530A (en) | 1987-10-24 |
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