JPS582525Y2 - mold making machine - Google Patents

mold making machine

Info

Publication number
JPS582525Y2
JPS582525Y2 JP1977120773U JP12077377U JPS582525Y2 JP S582525 Y2 JPS582525 Y2 JP S582525Y2 JP 1977120773 U JP1977120773 U JP 1977120773U JP 12077377 U JP12077377 U JP 12077377U JP S582525 Y2 JPS582525 Y2 JP S582525Y2
Authority
JP
Japan
Prior art keywords
cover member
flask
plate
making machine
mold
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP1977120773U
Other languages
Japanese (ja)
Other versions
JPS5446814U (en
Inventor
鵜崎永人
河村安太郎
松井和春
Original Assignee
新東工業株式会社
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 新東工業株式会社 filed Critical 新東工業株式会社
Priority to JP1977120773U priority Critical patent/JPS582525Y2/en
Publication of JPS5446814U publication Critical patent/JPS5446814U/ja
Application granted granted Critical
Publication of JPS582525Y2 publication Critical patent/JPS582525Y2/en
Expired legal-status Critical Current

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Description

【考案の詳細な説明】 本考案は鋳枠内に充填された鋳物砂をスキーズして鋳型
を造型する鋳型造型機に関するものである。
[Detailed Description of the Invention] The present invention relates to a mold making machine that makes a mold by squeezing molding sand filled in a casting flask.

一般にスキーズによる鋳型造型機は、鋳物砂を十分にス
キーズして所定の硬度を有する鋳型を得るために、大径
のスキーズ用の流体シリンダを備えているが、流体シリ
ンダの内面は滑らかな仕上面とする必要があり、そのた
めに大径のシリンダになるとその内面の切削加工時間が
大幅に増加して製作費がきわめて高価となる欠点がある
In general, a mold making machine using a squeegee is equipped with a fluid cylinder for a large diameter squeegee in order to sufficiently squeeze the foundry sand to obtain a mold with a predetermined hardness, but the inside of the fluid cylinder has a smooth finished surface. For this reason, if the cylinder has a large diameter, the cutting time for the inner surface of the cylinder increases significantly, and the production cost becomes extremely high.

本考案は以上のような欠点のない鋳型造型機を目的とし
て完成されたもので、以下、図示の実施例について詳細
に説明する。
The present invention was completed with the aim of providing a mold making machine free from the above-mentioned drawbacks, and the illustrated embodiments will be described in detail below.

1は基礎上に設置される鋳型造型機の矩形状の基台で、
その中央部には上向きの流体シリンダ2が設置され、そ
のピストンロッド3の先端には模型板4を備えるテーブ
ル5が固着されていて図示されないガイドピンにより水
平面内における回転が防止されて昇降可能とされ、また
前記模型板4の側端部には後記する鋳枠13の位置決め
用のガイドピン6が立設されている。
1 is the rectangular base of the mold making machine installed on the foundation,
A fluid cylinder 2 facing upward is installed in the center, and a table 5 with a model plate 4 is fixed to the tip of its piston rod 3, and is prevented from rotating in a horizontal plane by a guide pin (not shown) and can be raised and lowered. Further, a guide pin 6 for positioning a casting flask 13, which will be described later, is provided upright at the side end of the model plate 4.

さらに前記基台1の四隅上面にはそれぞれ支柱7が立設
され、各支柱7の中間位置には補強用の固定フレーム8
が前後方向に張架されており、各固定フレーム8と基礎
から立設される複数組の脚9により搬送装置10が前記
模型板4の直上位置を通って水平状に配設され、該搬送
装置10の一対の平行フレーム11には、対向する内面
側に多数の鍔付きのローラ12が回転自在に軸支されて
その上面に模型板4上に位置決めして載置される鋳枠1
3を走行自在に載置するとともに対向するローラ12の
間には前記模型板4、テーブル5を昇降通過可能とする
空間が形成してあり、また前記搬送装置10の上方にお
ける各支柱7の側面には上面にガイドピン15を立設し
たブラケット14がそれぞれ水平状に突設され、各ブラ
ケット14上には鋳枠13の内外側寸法と略同−の大き
さの内、外側寸法を有する枠状の盛枠16が、その四隅
から突出される脚部16′を前記ガイドピン15に係合
されて昇降自在に載置されてテーブル5上に対向される
とともに搬送装置10上に載置される鋳枠13の上面と
適当な間隔を設けて位置され、さらに盛枠16の周縁部
下面にはシール部材17がその全周縁に沿って先端部を
若干突出させて埋設されていて、鋳枠13と盛枠16と
が当接されたとき当接面をシールする構成とされている
Further, pillars 7 are erected on the upper surface of each of the four corners of the base 1, and a fixed frame 8 for reinforcement is provided at an intermediate position between each pillar 7.
is stretched in the front-rear direction, and a transport device 10 is horizontally disposed passing directly above the model board 4 by each fixed frame 8 and a plurality of sets of legs 9 erected from the foundation. A plurality of flanged rollers 12 are rotatably supported on the opposing inner surfaces of a pair of parallel frames 11 of the device 10, and a casting flask 1 is placed on the top surface of the flanged rollers 12 to be positioned on a model plate 4.
A space is formed between the opposing rollers 12 in which the model plate 4 and the table 5 can be moved up and down, and a space is formed between the rollers 12 in which the model board 4 and the table 5 can be moved up and down. Brackets 14 each having a guide pin 15 erected on its upper surface are horizontally protruded from each other, and a frame having inner and outer dimensions approximately the same as the inner and outer dimensions of the flask 13 is mounted on each bracket 14. A shaped filling frame 16 is placed on the table 5 with the legs 16' protruding from its four corners engaged with the guide pins 15 so as to be movable up and down, and is placed on the conveying device 10 while facing the table 5. The molding flask 16 is positioned at an appropriate distance from the upper surface of the flask 13, and a sealing member 17 is buried under the peripheral edge of the flask 16 along its entire periphery with its tip slightly protruding. When the filling frame 13 and the filling frame 16 come into contact with each other, the contact surfaces are sealed.

さらに支柱7の上端部には前記搬送装置10における平
行フレーム11と対応して平行に延びる一対の固定フレ
ーム18が該平行フレーム11と若干の間隔をち・いて
水平状に設置され、各固定フレーム18の対向する内側
面には多数の鍔付きのローラ19が適当な間隔をおいて
回転自在に軸支されている。
Further, at the upper end of the support column 7, a pair of fixed frames 18 extending in parallel corresponding to the parallel frames 11 in the transport device 10 are installed horizontally with a slight distance from the parallel frames 11. A large number of flanged rollers 19 are rotatably supported on the opposing inner surfaces of rollers 18 at appropriate intervals.

20は下方を盛枠16の内側寸法と略同−寸法とした開
口21とするとともに下端面を盛枠16の周縁部上面と
略同−寸法として内部に空間部21′を形成するカバ一
部材で、その両側に突設される係合部材22により前記
ローラ19上に保持されて盛枠16の直上位置へ進退可
能に設けられ、またカバ一部材20の天井部中央には貫
通孔21が形成されていて、該天井部中央上面に立設さ
れる下向きのシリンダ23のピストンロッド24が昇降
可能に挿通され、前記貫通孔21′/に嵌着されるOリ
ング等のシール部材25により貫通孔2で′とピストン
ロッド24との隙間がシールされて釦り、さらにカバ一
部材20の下端面には、盛枠16の上面と当接されたと
きにその間をシールするようにシール部材26が下方へ
若干突出されて前記下端面に沿って埋設され、また前記
ピストンロッド24の下端には、カバ一部材20の内側
寸法よりわずかに小さい外側寸法の平板状のスキーズプ
レート27が水平状に設けられて昇降可能とされ、開口
21を形成するカバ一部材20の内周壁面とわずかな隙
間を設けて該開口21内に昇降可能に嵌入されてむり、
前記スキーズプレート27の上面には、カバ一部材20
を上下に貫通してガイドピン28が立設されてスキーズ
プレート2Tの水平面内に釦ける回転が防止されており
、カバ一部材20に設けられるガイドビン28挿通部の
摺動面にはOリング等のシール部材29が嵌着されてシ
ールされてかり、30はカバ一部材20の天井部に透設
されてスキーズプレート27の上方側とされる圧縮空気
の給排気孔で、エヤーホース31および方向切換弁等を
介して図示されない圧縮空気源に連通されて、カバ一部
材20のスキーズ27により区画される空間部21′内
に圧縮空気を供給することにより前記スキーズプレート
27を下降させる構成とされ、従って前記のシリンダ2
3ば、空間部21′内の圧縮空気を排気後にスキーズプ
レート27を元の位置へ上昇させ得る程度の容量を有し
ていればよく、32はカバ一部材20が流体シリンダ2
の作動により押上げられた際、その上昇を阻止するため
に該カバ一部材20に当接されるように各固定フレーム
18の内側より突設されたストッパー、33はカバ一部
材20等の走行用のシリンダで前記固定フレーム18に
支持されてかり、そのピストンロッド34の先端はカバ
一部材20に立設されるブラケット35に連結されてい
る。
Reference numeral 20 denotes a cover member having an opening 21 whose lower side has approximately the same dimensions as the inside dimension of the filling frame 16, and whose lower end surface has approximately the same dimensions as the upper surface of the peripheral edge of the filling frame 16 to form a space 21' therein. The cover member 20 is held on the roller 19 by engaging members 22 protruding from both sides thereof and is movable to a position directly above the filling frame 16, and a through hole 21 is provided in the center of the ceiling of the cover member 20. A piston rod 24 of a downward cylinder 23 erected on the central upper surface of the ceiling portion is inserted so as to be movable up and down, and is penetrated by a sealing member 25 such as an O-ring fitted into the through hole 21'. The hole 2 seals the gap between the piston rod 24 and the button, and a seal member 26 is provided on the lower end surface of the cover member 20 so as to seal the gap when it comes into contact with the upper surface of the filling frame 16. is buried along the lower end surface with a slight protrusion downward, and a flat squeezing plate 27 having an outer dimension slightly smaller than the inner dimension of the cover member 20 is horizontally disposed at the lower end of the piston rod 24. It is provided in the opening 21 so as to be movable up and down, and is fit into the opening 21 so as to be movable up and down, with a slight gap between the cover member 20 forming the opening 21 and the inner circumferential wall surface of the cover member 20.
A cover member 20 is provided on the upper surface of the skies plate 27.
A guide pin 28 is provided vertically penetrating through the squeegee plate 2T to prevent the button from rotating in the horizontal plane. A sealing member 29 such as a ring is fitted and sealed, and 30 is a compressed air supply/exhaust hole provided through the ceiling of the cover member 20 and located above the squeezing plate 27. The squeegee plate 27 is lowered by supplying compressed air into the space 21' defined by the squeegee 27 of the cover member 20 by communicating with a compressed air source (not shown) via a directional control valve or the like. configuration, and therefore the above-mentioned cylinder 2
3, it is sufficient that the cover member 20 has enough capacity to raise the squeezing plate 27 to its original position after exhausting the compressed air in the space 21';
A stopper 33 is provided to protrude from the inside of each fixed frame 18 so as to come into contact with the cover member 20 to prevent the cover member 20 from rising when the cover member 20 is pushed up by the operation of the cover member 20. The piston rod 34 is supported by the fixed frame 18 with a cylinder for use in the piston rod 34, and the tip of the piston rod 34 is connected to a bracket 35 erected on the cover member 20.

また36はカバ一部材20の端部に突設される連結部材
37と接手ピン38により連接される鋳物砂のホッパー
で、カバ一部材20と同様に固定フレーム180ローラ
19上に走行自在に保持されて該カバ一部材20と連動
される構成とされ、該ホッパー36にはその底部を形成
する複数個のダンパー39が図示されない駆動装置にま
り回動可能に保持されていて、ホッパー36内には1回
の鋳型造型に必要とされる鋳物砂が収容されるようにな
って釦り、さらに前記接手ピン38は連結部材37にゆ
るく嵌入されていて、カバ一部材20だげが単独で若干
の距離昇降できるようになって卦り、40は鋳枠13の
下面に透設されるガイドピン6挿通用の小孔である。
Further, 36 is a molding sand hopper connected by a connecting member 37 protruding from the end of the cover member 20 and a joint pin 38, and similarly to the cover member 20, it is held movably on a fixed frame 180 and rollers 19. A plurality of dampers 39 forming the bottom of the hopper 36 are rotatably held by a drive device (not shown), and the dampers 39 are rotatably held in the hopper 36. The molding sand required for one mold production is accommodated and the button is pressed, and the joint pin 38 is loosely fitted into the connecting member 37, and the cover member 20 is slightly protruded by itself. 40 is a small hole through which the guide pin 6 is inserted, which is provided in the lower surface of the flask 13.

このように構成された装置により鋳型を造型するには、
図においてシリンダ33を作動してカバ一部材20を盛
枠16上より後退させてホッパー36を盛枠16上へ前
進させ、流体シリンダ2を作動させて模型板4、テーブ
ル5を上昇させて該模型板4上に、搬送装置10のロー
ラ12により送り込まれて待機している鋳枠13をガイ
ドピン6と小孔40との係合により位置決め載置して上
昇し、これにより鋳枠13上に盛枠16を載置して該盛
枠16の上面がホッパー36の下面に当接する直前で流
体シリンダ2の作動を停止して前記盛枠16等の上昇を
止め、ダンパー39を回動してホッパー36の底部を開
放して鋳物砂を模型板4上における鋳枠13、盛枠16
内に充填する。
To mold a mold using a device configured in this way,
In the figure, the cylinder 33 is operated to move the cover member 20 backward from above the filling frame 16 and the hopper 36 is advanced above the filling frame 16, and the fluid cylinder 2 is actuated to raise the model plate 4 and table 5 to The flask 13, which has been sent by the rollers 12 of the conveying device 10 and is waiting, is positioned and placed on the model plate 4 by the engagement of the guide pins 6 and the small holes 40, and is raised. The filling frame 16 is placed on the hopper 36, and just before the upper surface of the filling frame 16 comes into contact with the lower surface of the hopper 36, the operation of the fluid cylinder 2 is stopped to stop the raising of the filling frame 16, etc., and the damper 39 is rotated. The bottom of the hopper 36 is opened and the molding sand is poured into the molding flask 13 and filling flask 16 on the model plate 4.
Fill inside.

次にダンパー39を元の位置に復帰させてからシリンダ
33を逆作動してホッパー36を後退させるとともにカ
バ一部材20を盛枠16上へ前進させ、再び流体シリン
ダ2を作動して盛枠16等を上昇させて該盛枠16の上
面にカバ一部材20を当接させてさらにこれらを一体状
に上昇させ、これによりカバ一部材20はホッパー36
に対しその連結部材37と接手ピン38とのゆるい嵌合
により単独に上昇され、固定フレーム18より突設され
るストッパー32に当接されることによりその上昇が阻
止されて各当接面が押圧状態とされて全体が停止し、各
シール部材17,26により盛枠16の両面がそれぞれ
鋳枠13、カバ一部材20との当接面にむいてシールさ
れて鋳枠13の上部側および盛枠16内を密閉状態とす
る。
Next, after returning the damper 39 to its original position, the cylinder 33 is operated in reverse to move the hopper 36 backward and the cover member 20 is advanced onto the filling frame 16, and the fluid cylinder 2 is operated again to move the filling frame 16. etc. are raised, the cover member 20 is brought into contact with the upper surface of the filling frame 16, and these are further raised as one unit, whereby the cover member 20 is brought into contact with the upper surface of the hopper 36.
However, due to the loose fit between the connecting member 37 and the joint pin 38, it is raised independently, and when it comes into contact with the stopper 32 protruding from the fixed frame 18, the rising is prevented and each contact surface is pressed. state and the entire system stops, and both sides of the flask 16 are sealed by the seal members 17 and 26 against the abutting surfaces of the flask 13 and the cover member 20, respectively, and the upper side of the flask 13 and the flask are sealed. The inside of the frame 16 is sealed.

ただし、鋳枠13の下部側は密閉状態とされずに気体が
外部へ排出できるようになっており、たとえば鋳枠13
の下端部、または模型板4に設けられる図示されないベ
ントプラグにより通気性を有する構成とされている。
However, the lower part of the flask 13 is not sealed and gas can be discharged to the outside.
It is configured to have ventilation by a vent plug (not shown) provided at the lower end of the model plate 4 or on the model board 4.

続いてシリンダ23を作動させてそのピストンロッド2
4を下降させるとともにエヤーホース31を介してカバ
一部材20内のスキーズプレート27の上方に圧縮空気
を導入すると、該圧縮空気の一部はカバ一部材20の開
口21の内壁とスキーズプレート27との隙間から漏れ
て盛枠16内および鋳枠13内を貫流して、鋳枠13の
下端部または図示されないベントプラグより外部へ排気
されるが、大部分はスキーズプレートを下方に押圧する
ように作用し、これにより下降距離を制限されることな
く下降されるスキーズプレート27により盛枠16内卦
よび鋳枠13内の鋳物砂は、あたかもスキーズプレート
27と略同じ大きさのピストンを有するシリンダによっ
てスキーズされるのと同じになり、大きなスキーズ圧力
を受けて鋳枠13の内面付近の鋳物砂にまで適確に十分
なスキーズが行われる。
Subsequently, the cylinder 23 is operated and the piston rod 2
4 is lowered and compressed air is introduced above the squeegee plate 27 in the cover member 20 via the air hose 31, a part of the compressed air is transferred to the inner wall of the opening 21 of the cover member 20 and the squeegee plate 27. The flow leaks through the gap between the molding flask 16 and the flask 13, and is exhausted to the outside from the lower end of the flask 13 or a vent plug (not shown), but most of it presses the squeezing plate downward. As a result, the molding sand in the filling frame 16 and the casting flask 13 is moved as if it were a piston of approximately the same size as the squeezing plate 27, which is lowered without any limit to the descending distance. The molding sand near the inner surface of the flask 13 is appropriately and sufficiently squeezed by receiving a large squeezing pressure.

このようにしてスキーズ完了後、力・τ一部材20内へ
の圧縮空気の導入を止めてその内部の圧縮空気をエヤー
ホース31および方向切換弁等を介して排気するととも
にシリンダ23も逆作動させてスキーズプレート27を
上昇させ、次いで流体シリンダ2を逆作動させてチーフ
ル5、模型板4、鋳枠13、盛枠16およびカバ一部材
20を一体的に下降させることにより、カバ一部材20
は係合部材22によりローラ19上へ、盛枠16はその
脚部16′によりブラケット14上へそれぞれ受取られ
て載置されて元の位置とされ、続いて造型された鋳型を
内蔵する鋳枠13も同様にローラ12上に載置されて残
されることにより模型板4より離型され、さらに模型板
4、チーフル5は下降されて元の位置へ復帰される。
After the squeezing is completed in this manner, the introduction of compressed air into the force/τ1 member 20 is stopped, and the compressed air inside is exhausted through the air hose 31 and the directional control valve, etc., and the cylinder 23 is also operated in reverse. The cover member 20 is raised by raising the squeezing plate 27 and then operating the fluid cylinder 2 in reverse to lower the chiffle 5, model plate 4, casting flask 13, filling frame 16, and cover member 20 integrally.
is placed onto the roller 19 by means of the engagement member 22, and the filling flask 16 is received and placed onto the bracket 14 by its leg 16' and placed in its original position, and then the mold containing the cast mold is removed. 13 is similarly placed and left on the roller 12 and released from the model plate 4, and further the model plate 4 and the chiffle 5 are lowered and returned to their original positions.

この間に前記ホッパー36には図示されない手段により
所定量の鋳物砂が供給され、さらに造型済の鋳枠13を
模型板4の直上位置から移動させるとともに次の空の鋳
枠13を模型板4の直上位置へ進入させ、再び前記の作
動を繰返して順次鋳型の造型が行われる。
During this time, a predetermined amount of molding sand is supplied to the hopper 36 by means not shown, and the molded flask 13 is moved from the position directly above the model plate 4, and the next empty flask 13 is moved onto the model plate 4. The mold is moved to the position directly above the mold, and the above-mentioned operation is repeated again to sequentially form the mold.

なお、シリンダ23のピストンロッド24の下端に固着
されるスキーズプレート27はゴム等の可撓性を有する
材料で作製してもよく、このような場合は、その外側寸
法をカバ一部材20あるいは鋳枠13の内側寸法より若
干大きくすることにより、カバ一部材20内に供給され
た圧縮空気の漏れをきわめて少なくすることができ、し
かも圧縮空気に押圧されて模型板4上の模型の形状に沿
って彎曲して鋳物砂を均一にして十分にスキーズするこ
とができ、また鋳枠13が十分な高さを有するなら盛枠
16を省略することもできる。
Note that the squeezing plate 27 fixed to the lower end of the piston rod 24 of the cylinder 23 may be made of a flexible material such as rubber. By making the inner dimensions of the flask 13 slightly larger, leakage of the compressed air supplied into the cover member 20 can be extremely reduced, and the shape of the model on the model plate 4 is pressed by the compressed air. By curving along the molding flask, the molding sand can be made uniform and sufficiently squeezed, and if the flask 13 has a sufficient height, the filling flask 16 can be omitted.

本考案は前記実施例による説明によって明らかなように
、模型板上の鋳枠の上面に進退可能とさレルカハ一部材
内にスキーズプレートラカバ一部材から分離して下降距
離を制限されることなく下降できるものとし、該スキー
ズプレートに圧縮空気を作用させて鋳枠の内面付近の鋳
物砂まで適確に十分なスキーズを行うようにしたから、
強力なスキーズ圧力が得られて十分なスキーズが可能と
され、スキーズ用としての大径のシリンダを使用する必
要がなくなって製作費を低減できるという利点があり、
実用的価値きわめて犬なものである。
As is clear from the description of the above embodiments, the present invention is such that the upper surface of the casting flask on the model plate can be moved forward and backward, and the squeegee plate is separated from the other members so that the descending distance is limited. The squeegee plate can be lowered without any movement, and compressed air is applied to the squeegee plate to properly and sufficiently squeeze the molding sand near the inner surface of the flask.
It is said that a strong squeegee pressure can be obtained and sufficient squeezing is possible, and there is no need to use a large diameter cylinder for squeezing, which has the advantage of reducing manufacturing costs.
The practical value is extremely small.

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

図面は本考案の実施例を示す一部切欠正面図である。 4・・・模型板、13・・・鋳枠、20・・・カバ一部
材、27・・・スキーズプレート、30・・・給排気孔
The drawing is a partially cutaway front view showing an embodiment of the present invention. 4... Model plate, 13... Casting flask, 20... Cover part, 27... Squeeze plate, 30... Supply/exhaust hole.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 昇降可能な模型板4上に載置される鋳枠13の上方にカ
バ一部材20を進退可能に設け、該カバ一部材20の天
井部中央上面には下向きシリンダ23を立設し、該シリ
ンダ23の前記カバ一部材20内にあるピストンロッド
24の下端にはスキーズプレート27を設けるとともに
カバ一部材20のスキーズプレート27の上方側に圧縮
空気の給排気孔30を透設したことを特徴とする鋳型造
型機。
A cover member 20 is movably provided above the casting flask 13 placed on a model plate 4 that can be raised and lowered, and a downward cylinder 23 is erected on the upper surface of the center of the ceiling of the cover member 20. A squeezing plate 27 is provided at the lower end of the piston rod 24 in the cover member 20 of No. 23, and a compressed air supply/exhaust hole 30 is transparently provided above the squeezing plate 27 of the cover member 20. Characteristic mold making machine.
JP1977120773U 1977-09-08 1977-09-08 mold making machine Expired JPS582525Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1977120773U JPS582525Y2 (en) 1977-09-08 1977-09-08 mold making machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1977120773U JPS582525Y2 (en) 1977-09-08 1977-09-08 mold making machine

Publications (2)

Publication Number Publication Date
JPS5446814U JPS5446814U (en) 1979-03-31
JPS582525Y2 true JPS582525Y2 (en) 1983-01-17

Family

ID=29077297

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1977120773U Expired JPS582525Y2 (en) 1977-09-08 1977-09-08 mold making machine

Country Status (1)

Country Link
JP (1) JPS582525Y2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5134822A (en) * 1974-07-15 1976-03-24 Baker Perkins Holdings Ltd Igata oyobi nakagonoseisakuhoho oyobi sochi

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5134822A (en) * 1974-07-15 1976-03-24 Baker Perkins Holdings Ltd Igata oyobi nakagonoseisakuhoho oyobi sochi

Also Published As

Publication number Publication date
JPS5446814U (en) 1979-03-31

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