JPH0132158B2 - - Google Patents
Info
- Publication number
- JPH0132158B2 JPH0132158B2 JP56047930A JP4793081A JPH0132158B2 JP H0132158 B2 JPH0132158 B2 JP H0132158B2 JP 56047930 A JP56047930 A JP 56047930A JP 4793081 A JP4793081 A JP 4793081A JP H0132158 B2 JPH0132158 B2 JP H0132158B2
- Authority
- JP
- Japan
- Prior art keywords
- agricultural tractor
- support
- fitting
- fixed
- attached
- 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
Links
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- Agricultural Machines (AREA)
- Forklifts And Lifting Vehicles (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、農業トラクターの３点支持装置利用
のリフト装置に係るものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a lift device that utilizes a three-point support device for an agricultural tractor.
（従来技術）
従来公知の、特開昭52−101565号公報には、農
業トラクターの後部に、一個のアツパリンクと二
個のロワーリンクを設け、該ロワーリンクの後端
により垂直のマストを支持し、該垂直マストに昇
降自在の荷台を取付け、前記農業トラクターの後
部には棒状の支持金具の前端部を止着し、前記荷
台に一端を連結したワイヤー又はチエンの他端を
マストの上部に取付けた案内車を巻回させてから
前記支持金具の先端部に結合した農業トラクター
の３点支持装置利用のリフト装置が記載されてい
る。(Prior art) Japanese Patent Application Laid-Open No. 52-101565 discloses that an agricultural tractor is provided with one upper link and two lower links at the rear, and a vertical mast is supported by the rear end of the lower links. , a loading platform that can be raised and lowered is attached to the vertical mast, the front end of a rod-shaped support fitting is fixed to the rear of the agricultural tractor, and the other end of a wire or chain connected to the loading platform at one end is attached to the top of the mast. A lifting device is disclosed that utilizes a three-point support device for an agricultural tractor, in which a guide wheel is wound around and then connected to the tip of the support fitting.
（発明が解決しようとする課題）
公知のものは、ワイヤー又はチエンの他端をマ
ストの上部に取付けた案内車を巻回させてから支
持金具の先端に固定しているが、該支持金具は不
動構造のため、製作誤差によつてマストを最低位
置に下げたときに荷台が地面に接触しないとき
は、チエンの長さを長くしなければならず、ま
た、作業状態においても荷台の位置を簡単に微調
節ができなかつた。(Problems to be Solved by the Invention) In the known method, the other end of a wire or chain is wound around a guide wheel attached to the top of the mast and then fixed to the tip of a support metal fitting. Due to the immovable structure, if the platform does not touch the ground when the mast is lowered to its lowest position due to manufacturing errors, the length of the chain must be increased, and the position of the platform must be adjusted even during work. It was not possible to make fine adjustments easily.
本発明は、これを解決したものである。 The present invention solves this problem.
（課題を解決するための手段）
本発明は、農業トラクター１の後部に、１個の
アツパリンク７と二個のロワーリンク３，３′を
設け、該ロワーリンク３，３′の後端により垂直
のマスト１３，１３′を支持し、該垂直マスト１
３，１３′に昇降自在の荷台３０を取付け、前記
農業トラクター１の後部には棒状の支持金具２０
の前端部を止着し、前記荷台３０の一端を連結し
たワイヤー又はチエンの他端をマスト１３，１
３′の上部に取付けた案内車３２を巻回させてか
ら前記支持金具２０の先端部２２に結合した農業
トラクターの３点支持装置利用のリフト装置にお
いて、前記支持金具２０は上下回動自在に止着
し、該止着位置より上方位置の農業トラクター１
の後部と、前記支持金具２０の先端部２２との間
には長短調節可能の突張金具２３を取付けた農業
トラクターの３点支持装置利用のリフト装置の構
成としたものである。(Means for Solving the Problems) The present invention provides one upper link 7 and two lower links 3, 3' at the rear of an agricultural tractor 1, and the rear ends of the lower links 3, 3' are vertically connected to each other. vertical mast 1
3 and 13', a lifting platform 30 is attached, and a rod-shaped support fitting 20 is attached to the rear of the agricultural tractor 1.
and the other end of the wire or chain connecting one end of the loading platform 30 to the mast 13,1.
In a lift device using a three-point support device for an agricultural tractor, the guide wheel 32 attached to the upper part of the support bracket 3' is wound around and connected to the tip end 22 of the support bracket 20, and the support bracket 20 is movable up and down. Agricultural tractor 1 that is fixed and located above the fixed position
A lifting device is constructed using a three-point support device for an agricultural tractor, in which a length-adjustable tension fitting 23 is attached between the rear part of the tractor and the tip end 22 of the support fitting 20.
（実施例）
本発明の一実施例を図面により説明すると、１
は農業トラクターで、四輪型に形成されており、
その機体２の後部には、２本のロワーリンク３，
３′が軸４，４′により軸止されている。(Example) An example of the present invention will be described with reference to the drawings.
is an agricultural tractor, shaped like four wheels,
At the rear of the aircraft 2, there are two lower links 3,
3' is fixed by shafts 4, 4'.
ロワーリンク３，３′の左右方向の中間位置の
上方位置には上下方向に数個の取付穴５、５を穿
孔した取付金具６が取付けられ、該取付金具６の
上方の取付穴５にはアツパリンク７の前端部が軸
１２により軸止される。 A mounting bracket 6, which has several mounting holes 5, 5 drilled in the vertical direction, is installed above the intermediate position in the left-right direction of the lower links 3, 3'. The front end of the upper link 7 is fixed by a shaft 12.
アツパリンク７は螺子棒８と螺子筒９と二又部
１０とにより形成されている。螺子棒８の先端に
は軸部１１が形成され、軸部１１を取付金具６、
６の間に挿入させて、軸１２により軸止する。螺
子棒８は螺子筒９にねじ込まれていて、該螺子棒
８を軸１２により止着する前に、螺子筒９に螺合
することにより適当の長さに調節しておく。アツ
パリンク７の後半分は二又部１０となり、二又部
１０の後端は、左右の垂直マスト１３，１３′の
両外方を挾むように位置させる。 The upper link 7 is formed by a threaded rod 8, a threaded tube 9, and a fork 10. A shaft portion 11 is formed at the tip of the screw rod 8, and the shaft portion 11 is attached to the mounting bracket 6,
6 and fixed with a shaft 12. The threaded rod 8 is screwed into a threaded tube 9, and before the screw rod 8 is fixed to the shaft 12, it is adjusted to an appropriate length by screwing into the screw tube 9. The rear half of the upper link 7 becomes a forked part 10, and the rear ends of the forked part 10 are positioned so as to sandwich the outsides of the left and right vertical masts 13, 13'.
垂直マスト１３，１３′はこれを側方からみる
と、第５図に示したように、上下方向の中間位置
に後方に突出する軸着部１４，１４′が設けられ
る。又、垂直マスト１３，１３′の下端部には、
前方に突出する軸着部１５，１５′が設けられる。
そして、前記二又部１０の後端部に形成した軸孔
１６，１６′を軸着部１４，１４′に合致させてピ
ン１７，１７′を挿通して止着する。前記ロワー
リンク３，３′の各後端には軸孔１８，１８′を形
成し、軸孔１８，１８′を前記軸着部１５，１
５′に合わせて、ピン１９、１９′により止着す
る。 When the vertical masts 13, 13' are viewed from the side, as shown in FIG. 5, shaft mounting portions 14, 14' are provided at intermediate positions in the vertical direction and project rearward. Also, at the lower end of the vertical masts 13, 13',
Pivot mounting portions 15, 15' projecting forward are provided.
Then, the shaft holes 16, 16' formed at the rear end of the forked part 10 are aligned with the shaft attachment parts 14, 14', and the pins 17, 17' are inserted and fixed. Shaft holes 18, 18' are formed at the rear ends of the lower links 3, 3', and the shaft holes 18, 18' are connected to the shaft mounting portions 15, 1.
5' and fasten with pins 19, 19'.
即ち、第３図により説明すると、本発明のアツ
パリンク７とロワーリンク３は、共に同じ長さに
形成されていて、且つ、ロワーリンク３の機体２
に対する軸４止部は、アツパリンク７の軸１２止
部よりも少しばかり前方位置に形成されている
が、垂直マスト１３，１３′に対するそれぞれの
軸着部の位置についてみると、ロワーリンク３の
ピン１９は垂直マスト１３，１３′より前方に突
出する軸着部１５にアツパリンク７のピン１７は
垂直マスト１３，１３′より後方に突出する軸着
部１４にそれぞれ軸着されているから、平行四辺
形の関係となり、垂直マスト１３，１３′は垂直
に支持されるし、且つ垂直を保つた状態で上下動
するようになる。 That is, to explain with reference to FIG. 3, the upper link 7 and the lower link 3 of the present invention are both formed to have the same length, and the fuselage 2 of the lower link 3
The shaft 4 stop for the upper link 7 is formed at a slightly forward position than the shaft 12 stop for the upper link 7, but when looking at the positions of the respective shaft attachment parts for the vertical masts 13 and 13', the pin of the lower link 3 19 is pivoted on the shaft attachment part 15 that projects forward from the vertical masts 13, 13', and the pin 17 of the upper link 7 is pivoted on the shaft attachment part 14 that projects rearward from the vertical masts 13, 13'. Because of the shape, the vertical masts 13, 13' are supported vertically and can move up and down while maintaining the vertical position.
前記取付金具６より下方位置には、別途形成し
た棒状の支持金具２０の前端を軸２１で止着す
る。支持金具２０は一個であつて水平に突出し、
先端部２２と前記取付金具６との間に突張金具２
３が取付けられる。該突張金具２３は両端の螺子
棒２４，２５と、中間の螺子筒２６とにより形成
されている。螺子筒２６にはハンドル２７が設け
られ、ハンドル２７を操作して螺子筒２６を回転
させると、突張金具２３は長短に調節され、支持
金具２０の先端部２２は上下動する。 At a position below the mounting bracket 6, the front end of a separately formed rod-shaped support fixture 20 is fixed with a shaft 21. The support fitting 20 is one piece and projects horizontally,
A tension fitting 2 is provided between the tip portion 22 and the mounting fitting 6.
3 is installed. The tension fitting 23 is formed by threaded rods 24, 25 at both ends and a threaded cylinder 26 in the middle. The threaded tube 26 is provided with a handle 27, and when the handle 27 is operated to rotate the threaded tube 26, the tension fitting 23 is adjusted to be long or short, and the tip portion 22 of the support fitting 20 moves up and down.
垂直の垂直マスト１３，１３′の横断形状は、
互いに向い合うコの字型であり、垂直マスト１
３，１３′の内部の空間２８，２８′をレールに利
用して荷台３０が上下する。即ち、空間２８，２
８′にはそれぞれ上下２個ずつのコロ２９が嵌合
され、コロ２９により上下動する荷台３０が設け
られる。荷台３０には、ワイヤー（又はチエン）
３１の一端が結合され、ワイヤー３１は垂直マス
ト１３，１３′の上端部に設けられている案内車
３２と巻回して下降し、前記支持金具２０の先端
部２２に止着される。 The cross-sectional shape of the vertical vertical masts 13, 13' is
It is U-shaped, facing each other, and the vertical mast 1
The loading platform 30 moves up and down using the spaces 28 and 28' inside the racks 3 and 13' as rails. That is, space 28,2
Two upper and lower rollers 29 are fitted in each of the rollers 8', and a loading platform 30 that is moved up and down by the rollers 29 is provided. The loading platform 30 has a wire (or chain)
One end of the wire 31 is connected, and the wire 31 is wound around a guide wheel 32 provided at the upper end of the vertical masts 13, 13', lowered, and fixed to the tip end 22 of the support fitting 20.
３３はリフトアーム３４，３４′はリフトロツ
ドである。 33 is a lift arm 34, 34' is a lift rod.
（作用） 次に作用を述べる。(effect) Next, we will discuss the effect.
本発明は上述の構成であるから、エンジンを始
動させて機体２に設けられている油圧操作レバー
を操作し、リフトアーム３３を上動させてリフト
ロツド３４，３４′によりロワーリンク３，３′を
上昇させると、垂直マスト１３，１３′、は上昇
する。然し、ワイヤー３１を固定してある支持金
具２０の先端部２２は上昇しないから、相対的に
ワイヤー３１は引張られることになるが、この場
合、ワイヤー３１の案内車３２より荷台３０に至
る間は、垂直マスト１３，１３′、の上動に対し
て２倍に相当する分が移動し、従つて、垂直マス
ト１３，１３′が50cm上昇すると荷台３０は１ｍ
上動することになる。然して、前記のように垂直
マスト１３が上昇してその倍に相当する高さだけ
荷台３０が上動することになるのだが、前記垂直
マスト１３は、垂直に支持されており、且つ、ア
ツパリンク７とロワーリンク３とは同じ長さに形
成されているから、垂直マスト１３は垂直に保つ
て上動するので、荷台３０が傾むいたりしない。 Since the present invention has the above-described configuration, the engine is started and the hydraulic control lever provided on the fuselage 2 is operated, the lift arm 33 is moved upward, and the lower links 3, 3' are moved by the lift rods 34, 34'. When raised, the vertical masts 13, 13' rise. However, since the tip 22 of the support fitting 20 to which the wire 31 is fixed does not rise, the wire 31 is relatively pulled. , vertical masts 13, 13' move up by an amount equivalent to twice that of the upward movement. Therefore, when vertical masts 13, 13' rise by 50 cm, the loading platform 30 moves by 1 m.
It will move up. However, as mentioned above, the vertical mast 13 rises and the loading platform 30 moves upward by a height equivalent to twice that height. However, the vertical mast 13 is supported vertically, and the upper link 7 Since the vertical mast 13 and the lower link 3 are formed to have the same length, the vertical mast 13 is kept vertical and moves upward, so the loading platform 30 does not tilt.
しかして、支持金具２０は上下回動自在に農業
トラクター１の後部に止着され、該止着位置より
上方位置の農業トラクター１の後部と、前記支持
金具２０の先端部２２との間には長短調節可能の
突張金具２３が取付けられているから、突張金具
２３の長さを変更することにより、支持金具２０
の先端部２２は上下動する。 Thus, the support fitting 20 is fixed to the rear part of the agricultural tractor 1 so as to be movable up and down, and there is a gap between the rear part of the agricultural tractor 1 located above the fixed position and the tip end 22 of the support fitting 20. Since the length-adjustable tension bracket 23 is attached, by changing the length of the tension bracket 23, the support bracket 20 can be adjusted.
The tip portion 22 of moves up and down.
したがつて、ワイヤー３１の長さを変更するこ
となく垂直マスト１３，１３′と荷台３０との相
対位置の微調節ができる。 Therefore, the relative position between the vertical masts 13, 13' and the loading platform 30 can be finely adjusted without changing the length of the wire 31.
（効果）
従来公知の、特開昭52−101565号公報には、農
業トラクターの後部に、一個のアツパリンクと二
個のロワーリンクを設け、該ロワーリンクの後端
により垂直のマストを支持し、該垂直マストに昇
降自在の荷台を取付け、前記農業トラクターの後
部には棒状の支持金具の前端部を止着し、前記荷
台に一端を連結したワイヤー又はチエンの他端を
マストの上部に取付けた案内車を巻回させてから
前記支持金具の先端部に結合した農業トラクター
の３点支持装置利用のリフト装置が記載されてい
る。(Effects) A conventionally known Japanese Patent Application Laid-open No. 52-101565 discloses that an agricultural tractor is provided with one upper link and two lower links at the rear, and a vertical mast is supported by the rear end of the lower links. A lifting platform that can be raised and lowered is attached to the vertical mast, the front end of a rod-shaped support fitting is fixed to the rear of the agricultural tractor, and the other end of a wire or chain, one end of which is connected to the loading platform, is attached to the top of the mast. A lifting device is described that utilizes a three-point support device for an agricultural tractor, in which a guide wheel is wound around and then connected to the tip of the support fitting.
該公知のものは、ワイヤー又はチエンの他端を
マストの上部に取付けた案内車を巻回させてから
支持金具の先端に固定しているが、該支持金具は
不動構造のため、製作誤差の調整、作業状態にお
ける荷台位置の微調節ができなかつた。 In this known method, the other end of the wire or chain is wound around a guide wheel attached to the top of the mast and then fixed to the tip of the support metal fitting, but since the support metal structure is immovable, there is a possibility of manufacturing errors. It was not possible to make adjustments or make fine adjustments to the position of the loading platform during working conditions.
しかるに、本発明は、農業トラクター１の後部
に、一個のアツパリンク７と二個のロワーリンク
３，３′を設け、該ロワーリンク３，３′の後端に
より垂直のマスト１３，１３′を支持し、該垂直
マスト１３，１３′に昇降自在の荷台３０を取付
け、前記農業トラクター１の後部には棒状の支持
金具２０の前端部を止着し、前記荷台３０に一端
を連結したワイヤー又はチエンの他端をマスト１
３，１３′の上部に取付けた案内車３２を巻回さ
せてから前記支持金具２０の先端部２２に結合し
た農業トラクターの３点支持装置利用のリフト装
置において、前記支持金具２０は上下回動自在に
止着し、該止着位置より上方位置の農業トラクタ
ー１の後部と、前記支持金具２０の先端部２２と
の間には長短調節可能の突張金具２３を取付けた
農業トラクターの３点支持装置利用のリフト装置
の構成としたものであるから、前記支持金具２０
の先端部２２を上下動させると、ワイヤーまたは
チエンの長さを変更することなく、簡単に荷台３
０の位置を微調節できるという効果を奏する。 However, in the present invention, one upper link 7 and two lower links 3, 3' are provided at the rear of the agricultural tractor 1, and the vertical masts 13, 13' are supported by the rear ends of the lower links 3, 3'. A lifting platform 30 that can be raised and lowered is attached to the vertical masts 13 and 13', a front end of a rod-shaped support 20 is fixed to the rear of the agricultural tractor 1, and a wire or chain is connected at one end to the loading platform 30. The other end is mast 1
In a lift device using a three-point support device for an agricultural tractor, the guide wheel 32 attached to the upper part of the support fitting 20 is wound around and connected to the tip end 22 of the support fitting 20, and the support fitting 20 is moved vertically. The agricultural tractor is fixed at three points, and a tension fitting 23 whose length can be adjusted is installed between the rear part of the agricultural tractor 1 located above the fixed position and the tip 22 of the support fitting 20. Since the structure is a lift device using a support device, the support fitting 20
By moving the tip 22 up and down, the loading platform 3 can be easily moved without changing the wire or chain length.
This has the effect that the 0 position can be finely adjusted.
第１図は全体の側面図、第２図は要部斜視図、
第３図は荷台が下動している状態図、第４図は荷
台が上動している状態図、第５図はマストの側面
図、第６図は要部平面図、第７図は要部斜視図で
ある。
符号の説明、１……農業トラクター、２……機
体、３，３′……ロワーリンク、４，４′……軸、
５……取付穴、６……取付金具、７……アツパリ
ンク、８……螺子棒、９……螺子筒、１０……二
又部、１１……軸部、１２……軸、１３，１３′
……垂直マスト、１４，１４′……軸着部、１５，
１５′……軸着部、１６，１６′……軸孔、１７，
１７′……ピン、１８，１８′……軸孔、１９，１
９′……ピン、２０……支持金具、２１……軸、
２２……先端部、２３……突張金具、２４……螺
子棒、２５……螺子棒、２６……螺子筒、２７…
…ハンドル、２８，２８′……空間、２９……コ
ロ、３０……荷台、３１……ワイヤー、３２……
案内車、３３……リフトアーム、３４，３４′…
…リフトロツド。
Figure 1 is an overall side view, Figure 2 is a perspective view of main parts,
Figure 3 is a state diagram where the loading platform is moving down, Figure 4 is a diagram where the loading platform is moving up, Figure 5 is a side view of the mast, Figure 6 is a plan view of the main part, and Figure 7 is a diagram of the loading platform moving up. FIG. 3 is a perspective view of main parts. Explanation of symbols, 1... Agricultural tractor, 2... Airframe, 3, 3'... Lower link, 4, 4'... Axis,
5...Mounting hole, 6...Mounting bracket, 7...Atsupari link, 8...Threaded bar, 9...Threaded tube, 10...Forked part, 11...Shaft part, 12...Shaft, 13, 13 ′
... Vertical mast, 14, 14' ... Pivot attachment part, 15,
15'...Shaft attachment part, 16, 16'...Shaft hole, 17,
17'...pin, 18,18'...shaft hole, 19,1
9'...Pin, 20...Supporting metal fittings, 21...Shaft,
22... Tip portion, 23... Tension fitting, 24... Threaded bar, 25... Threaded bar, 26... Threaded tube, 27...
...Handle, 28, 28'... Space, 29... Roller, 30... Loading platform, 31... Wire, 32...
Guide car, 33... Lift arm, 34, 34'...
...Liftrod.
Claims (1)
ンク７と二個のロワーリンク３，３′を設け、該
ロワーリンク３，３′の後端により垂直のマスト
１３，１３′を支持し、該垂直マスト１３，１
３′に昇降自在の荷台３０を取付け、前記農業ト
ラクター１の後部には棒状の支持金具２０の前端
部を止着し、前記荷台３０に一端を連結したワイ
ヤー又はチエンの他端をマスト１３，１３′の上
部に取付けた案内車３２を巻回させてから前記支
持金具２０の先端部２２に結合した農業トラクタ
ーの３点支持装置利用のリフト装置において、前
記支持金具２０は上下回動自在に止着し、該止着
位置より上方位置の農業トラクター１の後部と、
前記支持金具２０の先端部２２との間には長短調
節可能の突張金具２３を取付けた農業トラクター
の３点支持装置利用のリフト装置。1 At the rear of the agricultural tractor 1, one upper link 7 and two lower links 3, 3' are provided, and the rear ends of the lower links 3, 3' support vertical masts 13, 13'. 13,1
A lifting platform 30 that can be raised and lowered is attached to the agricultural tractor 1, the front end of a rod-shaped support fitting 20 is fixed to the rear of the agricultural tractor 1, and the other end of a wire or chain connected to the loading platform 30 at one end is connected to the mast 13, In a lift device using a three-point support device for an agricultural tractor, the guide wheel 32 attached to the upper part of the support bracket 13' is wound around and connected to the tip end 22 of the support bracket 20, and the support bracket 20 is movable up and down. A rear part of the agricultural tractor 1 that is fixed and located above the fixed position;
This lift device uses a three-point support device for an agricultural tractor, in which a tension fitting 23 whose length can be adjusted is attached between the tip end 22 of the support fitting 20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4793081A JPS57166294A (en) | 1981-03-31 | 1981-03-31 | Lift device utilizing three point supporter of agricultural tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4793081A JPS57166294A (en) | 1981-03-31 | 1981-03-31 | Lift device utilizing three point supporter of agricultural tractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57166294A JPS57166294A (en) | 1982-10-13 |
| JPH0132158B2 true JPH0132158B2 (en) | 1989-06-29 |
Family
ID=12789081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4793081A Granted JPS57166294A (en) | 1981-03-31 | 1981-03-31 | Lift device utilizing three point supporter of agricultural tractor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57166294A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5820574A (en) * | 1981-07-30 | 1983-02-07 | Suzuki Tanko Co Ltd | Lift unit fitted to agricultural tractor |
| JPS60162929A (en) * | 1984-02-03 | 1985-08-24 | Nippon Kagaku Kogyo Kk | Optical fiber pressure measuring device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52101565A (en) * | 1976-02-18 | 1977-08-25 | Saito Hidemi | Fork lift mounted to tractor for agriculture* etc* |
-
1981
- 1981-03-31 JP JP4793081A patent/JPS57166294A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57166294A (en) | 1982-10-13 |
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