JPS583021Y2 - Ice maker stirring device - Google Patents
Ice maker stirring deviceInfo
- Publication number
- JPS583021Y2 JPS583021Y2 JP1978136686U JP13668678U JPS583021Y2 JP S583021 Y2 JPS583021 Y2 JP S583021Y2 JP 1978136686 U JP1978136686 U JP 1978136686U JP 13668678 U JP13668678 U JP 13668678U JP S583021 Y2 JPS583021 Y2 JP S583021Y2
- Authority
- JP
- Japan
- Prior art keywords
- ice
- making
- fin
- stirring
- cores
- 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
Landscapes
- Production, Working, Storing, Or Distribution Of Ice (AREA)
Description
【考案の詳細な説明】
本考案は、製氷水を充満した製氷タンクの下底面に製氷
コアーを突出せしめ、この製氷コアー上に氷塊を生成せ
しめるようにした製氷機に関するものである。[Detailed Description of the Invention] The present invention relates to an ice making machine in which an ice making core is protruded from the bottom surface of an ice making tank filled with ice making water, and ice blocks are generated on the ice making core.
従来よりこの種の製氷機において、透明氷塊を得るため
に製氷タンク内の製氷水を攪拌する手段として、二列に
配列された製氷コア一群の中間に攪拌部材を位置せしめ
て揺動せしめるようにしたものが知られている。Conventionally, in this type of ice making machine, as a means for stirring the ice making water in the ice making tank in order to obtain transparent ice cubes, a stirring member is placed between a group of ice making cores arranged in two rows and is oscillated. What has been done is known.
しかし、製水水の揺動は主に上記撹拌部材のある位置、
すなわち二列の製氷コア一群の対向する部分のみで大き
く、したがって、かかる部分では透明度の高い氷塊が得
られるも、攪拌部材のない位置、すなわち二列の製氷コ
ア一群の対向していない部分では不透明な氷となり、透
明、不透明の入り混った氷塊が得られる。However, the shaking of the produced water mainly occurs at the location where the stirring member is located,
In other words, only the opposing portions of the two rows of ice cores are large, and therefore highly transparent ice cubes can be obtained in such portions, but the ice cubes are opaque at the position where there is no stirring member, that is, the portions where the two rows of ice core groups are not facing each other. The result is a mixture of transparent and opaque ice blocks.
そして、前記問題だけでなく氷の成長速さも製氷水の揺
動度合で変化を生じ、不均一な氷塊が生成されていた。In addition to the above-mentioned problem, the speed of ice growth also changes depending on the degree of shaking of the ice-making water, resulting in uneven ice blocks.
本考案は上記欠点を解消し、透明で均一な氷塊が得られ
る製氷機を提供せんとして成されたものである。The present invention has been made with the aim of solving the above-mentioned drawbacks and providing an ice making machine that can produce transparent and uniform ice cubes.
以下本考案の一実施例を添付図面に従い説明する。An embodiment of the present invention will be described below with reference to the accompanying drawings.
図において、1は製氷機の本体で、外箱2と内箱3とこ
れら両箱2,3間に充填された断熱材4より成る。In the figure, reference numeral 1 denotes the main body of the ice making machine, which consists of an outer box 2, an inner box 3, and a heat insulating material 4 filled between the boxes 2 and 3.
該本体1の前面下部には氷塊取出口5を開閉する断熱扉
6が枢着され、上面の製氷水注入口には蓋体7が備えら
れている。A heat insulating door 6 for opening and closing the ice block outlet 5 is pivotally attached to the lower front of the main body 1, and a lid 7 is provided to the ice making water inlet on the upper surface.
また本体1の下部には機械室8を構成し、衆知の冷却シ
ステムの一部を成す電動圧縮機9、凝縮器(図示せず)
等が配置されている。Further, a machine room 8 is configured in the lower part of the main body 1, and includes an electric compressor 9 and a condenser (not shown) that form part of a well-known cooling system.
etc. are arranged.
さらに本体1内上部には製氷水を貯留する貯水タンク1
0を収納しており、その下方は氷塊を製造する製氷部1
1と氷塊を貯留する貯水部12とに分離される。Furthermore, a water storage tank 1 for storing ice-making water is located in the upper part of the main body 1.
0 is stored, and below it is the ice making section 1 that produces ice cubes.
1 and a water storage section 12 that stores ice blocks.
ここで製氷部11の構成について説明する。Here, the configuration of the ice making section 11 will be explained.
13は貯水タンク10とパルプ機構48を介して連通さ
れた製氷タンクで、支持板14,14.・・・によって
本体1の側壁に固定されている。13 is an ice making tank which is communicated with the water storage tank 10 via the pulp mechanism 48, and support plates 14, 14 . ... is fixed to the side wall of the main body 1.
上記貯水タンク10内の製氷水はパルプ機構48によっ
て常に二定の製氷水を製氷タンク13内に注入するよう
になっている。The ice-making water in the water storage tank 10 is always injected into the ice-making tank 13 at a constant rate by a pulp mechanism 48.
上記支持板14,14・・・と製氷タンク13め底壁1
3aとの間には上記冷却システムの一部を成す蒸発管1
5が配設されており、製氷タンク13内部には底壁13
aを貫通して蒸発管15と交熱的に密着せしめられた製
氷コアー16.16・・・が二列にして各々等間隔毎に
多数突出せしめられている。The support plates 14, 14... and the bottom wall 1 of the ice making tank 13
3a, there is an evaporation tube 1 that forms part of the cooling system.
5 is arranged, and a bottom wall 13 is provided inside the ice making tank 13.
A large number of ice-making cores 16, 16, .
ここで第4図において左列の製氷コア一群をX群、右列
の製氷コア一群をY群と仮りに設定しておく、11は底
壁13aと製氷コアー16.16.・・・との間をシー
ルするバンキング、18は製氷コアー16.16.・・
・上に生成される氷塊A、A、・・・を製氷コアー16
,16.・・・より離氷せしめるための加熱管で、製氷
終了後圧縮機9からの高圧冷媒が流入するようになって
いる。Here, in FIG. 4, the group of ice-making cores in the left row is temporarily set as group X, and the group of ice-making cores in the right row is set as group Y. Reference numeral 11 indicates the bottom wall 13a and the ice-making cores 16, 16. . . . Banking, 18 is the ice making core 16.16.・・・
・The ice blocks A, A, ... generated on the ice making core 16
,16. . . . A heating tube for further ice removal, into which high-pressure refrigerant from the compressor 9 flows after ice making is completed.
19は製氷タンク13の奥壁13b、側壁13c。Reference numeral 19 indicates a back wall 13b and a side wall 13c of the ice making tank 13.
13c′にわたって設けられた駆動装置で、奥壁13b
に固定された駆動モータ20と、このモータ20の回転
軸にジヨイント21にて連結されたシャフト22より成
る。A drive device provided over 13c', which drives the rear wall 13b.
The drive motor 20 includes a drive motor 20 fixed to the drive motor 20, and a shaft 22 connected to the rotating shaft of the motor 20 through a joint 21.
このシャフト22は製氷タンク13の中央部においてク
ランク部22aを有し、クランク部22aの両側は側壁
13cに固定された枢支板23.24によって枢支され
ている。This shaft 22 has a crank part 22a in the center of the ice-making tank 13, and both sides of the crank part 22a are supported by pivot plates 23 and 24 fixed to the side wall 13c.
25は上記クランク部22aに設け、製氷タンク13内
の製氷水上に浮上してくる氷塊A 、 A。25 is provided on the crank part 22a, and ice blocks A and A float to the top of the ice making water in the ice making tank 13.
・・・を製氷タンク13の側壁13c の上方に形成
された排出口13dより貯水部12に落下せしめるため
の氷塊掻出装置である。This is an ice scraping device for causing ice blocks to fall into the water storage section 12 from a discharge port 13d formed above the side wall 13c of the ice making tank 13.
この掻出装置25は枢支板23,24に固定された軸2
6に長孔27aが摺動自在に備えられ、かつクランク部
22aに枢支されたアーム27.27と、このアーム2
7.27の先端に固定された掻出ひれ28とより成る。This scraping device 25 has a shaft 2 fixed to pivot plates 23 and 24.
6 is slidably provided with a long hole 27a, and an arm 27.27 is pivotally supported on the crank portion 22a, and this arm 2
7. It consists of a scraping fin 28 fixed to the tip of 27.
すなわち、シャフト22の回転に伴うクランク部22a
の回転軌跡(第2図一点破線Pで示す)によって、ひれ
28の側壁13cから排出口13dへの製氷タンク13
内の水筒上の行き動作と、排出口13dから側壁13c
への行き動作より上方での戻り動作(第2図一点鎖線Q
で示す)を行う。That is, as the shaft 22 rotates, the crank portion 22a
According to the rotation locus (indicated by the dotted line P in FIG.
movement on the inner water bottle and from the outlet 13d to the side wall 13c.
Return movement above the movement towards
).
シャフト22の反モータ20側の一端、すなわち一方の
枢支板23内にはギア機構29が設けられ、シャフト2
2より高速回転を行う第2のシャフト30が枢支板23
に枢支されている。A gear mechanism 29 is provided at one end of the shaft 22 on the side opposite to the motor 20, that is, within one pivot plate 23.
The second shaft 30 that rotates at a higher speed than the pivot plate 23
is supported by.
31は変換機構で、後述する板ばねに枢支されたクラン
ク32と、このクランク32の一端に遊嵌せしめられた
揺動アーム33の長孔34より成る。Reference numeral 31 denotes a conversion mechanism, which includes a crank 32 pivotally supported by a leaf spring to be described later, and a long hole 34 of a swing arm 33 loosely fitted into one end of the crank 32.
上記クランク32の他端と第2のシャフト30とはコイ
ルスプリング(弾性体)35にて連結されている。The other end of the crank 32 and the second shaft 30 are connected by a coil spring (elastic body) 35.
36.37はクランク32、第2のシャフト30、コイ
ルスプリング35をそれぞれ連結するジヨイントである
。36 and 37 are joints that connect the crank 32, the second shaft 30, and the coil spring 35, respectively.
38は攪拌装置で、製氷タンク13の下底面13aに臨
んで二列のコア一群(X群)、(Y群)の間を左右に揺
動する第1の攪拌ひれ39aと、このひれ39aと直交
状にして各群X、Yの隣合う製氷コアー16.16間に
位置して第1のひれ39aと同様に揺動する第2の撹拌
ひれ39bと、上記第1のひれ39aに連結された揺動
アーム33より成る。Reference numeral 38 denotes a stirring device, which includes a first stirring fin 39a that faces the bottom surface 13a of the ice-making tank 13 and swings from side to side between two rows of core groups (X group) and (Y group); A second stirring fin 39b that is orthogonally arranged between adjacent ice-making cores 16 and 16 of each group X and Y and swings in the same manner as the first fin 39a; It consists of a swinging arm 33.
捷た上記第2のひれ39bの前端には製氷タンク13の
側壁13 c 、 13 c’ に対向して、かつ第1
のひれ39aと平行な補助ひれ39 b’、 39 b
’ を設けている。At the front end of the folded second fin 39b, there is a first
Auxiliary fins 39 b', 39 b parallel to the fin 39a
' has been established.
すなわち揺動アーム33は略中央部分が製氷タンク13
の前壁13eに固定された軸部材40を中心としてクラ
ンク320回転軌跡(第3図一点鎖線Rで示す)が第1
のひれ39aの揺動軌跡(第3図一点鎖線Sで示す)と
なり、さらに第2のひれ39bの揺動軌跡(同S′で示
す)を生じるものである。In other words, the approximately center portion of the swinging arm 33 corresponds to the ice making tank 13.
The rotation locus of the crank 320 (indicated by the dashed line R in FIG. 3) about the shaft member 40 fixed to the front wall 13e of the
This results in a swing trajectory of the second fin 39a (indicated by the dashed line S in FIG. 3), and a swing trajectory of the second fin 39b (indicated by S' in FIG. 3).
このとき第1のひれ39aの揺動は各コア一群X、Yの
ひれ39aに面する部分の攪拌を促進し、第2のひれ3
9bの補助ひれ39b′は各コア一群X、Yの第1のひ
れ39aとは反対側の部分の撹拌を行うものであり、か
つ隣接する各コアー16.16・・・間に位置する第2
の攪拌ひれ39bは各コアー16.16・・・間の流れ
を促し、結局コア−16全周の攪拌を行なうものである
。At this time, the swinging of the first fin 39a promotes agitation of the portion of each core group X, Y facing the fin 39a, and the second fin 3
The auxiliary fins 39b' of 9b stir the portion of each group of cores X, Y on the opposite side from the first fin 39a, and the auxiliary fins 39b' of each core group
The stirring fins 39b promote the flow between the cores 16, 16, and eventually stir the entire circumference of the cores 16.
41は攪拌装置38にかかる制動トルクを検出して製氷
運転を停止し、加熱管18に高圧冷媒を流入せしめるこ
とによりコアー16,16・・・から氷塊A、A、・・
・を離氷せしめるための検知装置である。41 detects the braking torque applied to the stirring device 38, stops the ice-making operation, and causes the high-pressure refrigerant to flow into the heating tube 18, thereby moving the ice cubes A, A, . . . from the cores 16, 16, .
・This is a detection device for letting go of ice.
この検知装置41はタンク13の側壁13cに固定した
取付部材42とこの取付部材42に(支)定し、上述の
動作を行うべく電気配線せしめられた検知スイッチ43
と、このスイッチ43と共にねじ44により取付部材4
2に共線めされた板ばね(弾性板体)45より成る。This detection device 41 includes a mounting member 42 fixed to the side wall 13c of the tank 13, and a detection switch 43 fixed to the mounting member 42 and electrically wired to perform the above-mentioned operation.
Then, together with this switch 43, the mounting member 4 is attached with a screw 44.
It consists of a leaf spring (elastic plate body) 45 collinear with 2.
上記板ばね45は、ねじ止めされる固定部45aと第2
のシャフト30と同一軸方向に延出すると共にスイッチ
43のアクチュエータ46の先端に臨筐せたわん曲部4
5bと、シャフト30と直角方向に折曲されたシャフト
30を枢支する枢支部45cとより構成されている。The plate spring 45 is connected to a fixed part 45a which is screwed to the second part.
A curved portion 4 extends in the same axial direction as the shaft 30 of the switch 43 and is housed at the tip of the actuator 46 of the switch 43.
5b, and a pivot portion 45c that pivotally supports the shaft 30, which is bent in a direction perpendicular to the shaft 30.
この板ばね45はコイルスプリング35の偏位、すなわ
ち撹拌ひれ39aが氷塊Aに接触することによる制動ト
ルクによる偏位(第4図点線Tで示す)によってわん曲
部45bが偏位するものである。The curved portion 45b of this leaf spring 45 is deflected by the deflection of the coil spring 35, that is, by the deflection caused by the braking torque caused by the contact of the stirring fin 39a with the ice block A (as shown by the dotted line T in FIG. 4). .
(第4図点線Uで示す)検知スイッチ43のアクチュエ
ータ46はこのわん曲部45bの偏位で作動されるもの
である。The actuator 46 of the detection switch 43 (indicated by dotted line U in FIG. 4) is actuated by the deviation of this curved portion 45b.
このアクチュエータ46の作動は製氷運転を停止し、離
氷動作を開始するよう電気的に配線されている。The actuator 46 is electrically wired to stop the ice making operation and start the ice removal operation.
オた上記検知スイッチ43と、板ばは45の固定部45
aとはねじ47によって取付部材42に同時に固定され
る。The above-mentioned detection switch 43 and the fixed part 45 of the plate plate 45
a and are simultaneously fixed to the mounting member 42 by screws 47.
これは各々検知スイッチ43、固定部45aにあらかじ
め固定場所を設定しておくことにより、アクチュエータ
46の先端と、このアクチュエータ46に接するわん曲
部45bの位置を各々について調整ぜずとも良いように
したものである。By setting the fixing locations for the detection switch 43 and the fixing part 45a in advance, it is not necessary to adjust the positions of the tip of the actuator 46 and the curved part 45b that contacts the actuator 46. It is something.
次に上記構成に於ける動作を1とめて説明する。Next, the operation in the above configuration will be explained.
■ 製氷動作
圧縮機9並びに駆動モータ20が運転し、製氷コアー1
6.16.・・・を冷却して外周に氷塊Aを生成せしめ
ると共に、常時、第1及び第2の撹拌ひれ39a、39
b並びに補助ひれ39b′を揺動せしめて製氷タンク1
3内の製氷水を攪拌する。■ Ice-making operation The compressor 9 and drive motor 20 operate, and the ice-making core 1
6.16. ... to generate ice blocks A on the outer periphery, and the first and second stirring fins 39a, 39 are constantly
b and the auxiliary fin 39b' are swung to open the ice making tank 1.
Stir the ice-making water in 3.
2 検知動作
製氷コアー16.16.・・・上の氷塊Aが一定厚さに
達すると第1の攪拌ひれ39aが氷塊Aに当りこのひれ
39aが動かなくなる。2 Detection operation ice making core 16.16. ...When the upper ice block A reaches a certain thickness, the first stirring fin 39a hits the ice block A and this fin 39a stops moving.
ひれ39aが氷塊Aによって停止されてもモータ20は
回動しているため軸部材40を中心として制動トルクが
コイルスプリング35がわん曲するとクランク32を枢
支している板ばね45もわん曲し、アクチュエータ46
を作動する。Even if the fin 39a is stopped by the ice block A, the motor 20 is still rotating, so if the braking torque around the shaft member 40 causes the coil spring 35 to bend, the leaf spring 45 that pivotally supports the crank 32 will also bend. , actuator 46
operate.
3 離氷動作
検知スイッチ43のアクチュエータ46の作動により、
加熱管18に圧縮機9からの高圧ガスを流入せしめて製
氷コアー16.16.・・・を暖め離氷する。3 By the operation of the actuator 46 of the ice removal operation detection switch 43,
High pressure gas from the compressor 9 is introduced into the heating tube 18 to form the ice making core 16.16. Warm up and release the ice.
4 排出動作
製氷コアー16.16.・・・より離氷した氷塊Aは製
氷水上に浮上し、常時回動している掻出ひれ28により
排出口13dより貯氷部12に掻出される。4 Discharge operation ice making core 16.16. . . . The ice cubes A that have been released from ice float above the ice-making water, and are scraped into the ice storage section 12 through the discharge port 13d by the scraping fins 28, which are constantly rotating.
以上1〜4の動作を繰り返し氷塊を生成するものである
。The above operations 1 to 4 are repeated to generate ice blocks.
上記1の製氷動作において、二列の製氷コア一群X、Y
の相対向する側は第1の撹拌ひれ39aによって製氷水
が揺動されるため、透明な氷塊が生成される一方、コア
一群X、Yの反対向側の部分は補助ひれ39b′によっ
て製氷水が揺動され、この部分も透明水の生成が期待で
きる。In the above ice-making operation 1, two rows of ice-making core groups X, Y
Since the ice-making water is swung by the first stirring fin 39a on the opposing sides, transparent ice cubes are generated, while on the opposite side of the core groups X and Y, the ice-making water is swung by the auxiliary fins 39b'. is shaken, and clear water can be expected to be produced in this area as well.
また第2の攪拌ひれ39b1補助ひれ39b′は第1の
攪拌ひれ39aに設けて同時に揺動するようにしたので
構造が特に複雑にならないものである。Further, since the second stirring fin 39b1 and the auxiliary fin 39b' are provided on the first stirring fin 39a so as to swing at the same time, the structure is not particularly complicated.
以上の説明からも明らかな如く、本考案製氷機の攪拌装
置は、製氷水を充満した製氷タンクの下底面に、少なく
とも二列にして、かつ等間隔に配置した多数の製氷コア
ーを突出せしめ、この二列のコア一群の中間に位置し、
かつ列方向に延出されて前記コアーの方向に揺動する第
1の攪拌ひれど、この第1の攪拌ひれに直交状に設け、
6夕Uの隣合うコアー間に位置した第2の撹拌ひれど、
この第2のひれの先端に設け、前記第1のひれによる揺
動部分とは反対側の部分で揺動する補助ひれとを備えた
ものであるから、製氷水の揺動は製氷コアーの一方向の
みではなくて、全周から揺動されて、全体が透明な氷塊
が得られ、オた製氷速度もほぼ均一となるので、形の整
った氷塊が得られる。As is clear from the above explanation, the stirring device of the ice making machine of the present invention has a large number of ice making cores arranged in at least two rows at equal intervals protruding from the bottom surface of the ice making tank filled with ice making water, Located in the middle of these two rows of core groups,
and a first stirring fin extending in the row direction and swinging in the direction of the core, provided perpendicularly to the first stirring fin,
6. A second stirring field located between adjacent cores of U,
Since the second fin is provided with an auxiliary fin that swings at the tip of the second fin on the opposite side to the swinging part of the first fin, the swinging of the ice-making water is caused by the swinging of the ice-making core. The ice cubes are rocked not only in one direction but from the entire circumference, resulting in ice cubes that are completely transparent, and the ice-making speed is also approximately uniform, resulting in well-shaped ice cubes.
さらに第1の攪拌ひれに第2の撹拌ひれを設けているの
で、駆動機構が一つで良く構造も複雑とならないもので
ある。Furthermore, since the second stirring fin is provided on the first stirring fin, only one driving mechanism is required and the structure is not complicated.
第1図は本考案−実施例の製氷機の部分断面図、第2図
は第1図n−u’線の断面図、第3図は第1図用−■′
線の断面図、第4図は第3図IV −IV’線の断面図
である。
13・・・・・・製氷タンク、13a・・・・・・下底
面、16・・・・・・製氷コアー、X、Y・・・・・・
製氷コア一群、39a・・・・・・第1の撹拌ひれ、3
9b・・・・・・第2の撹拌ひれ。Fig. 1 is a partial sectional view of the ice maker according to the present invention - an embodiment, Fig. 2 is a sectional view taken along line nu' in Fig. 1, and Fig. 3 is a partial sectional view of the ice maker according to the present invention -
4 is a sectional view taken along line IV-IV' in FIG. 3. 13...Ice making tank, 13a...Lower bottom surface, 16...Ice making core, X, Y...
A group of ice-making cores, 39a...First stirring fin, 3
9b...Second stirring fin.
Claims (1)
列にして、かつ等間隔に装置した多数の製氷コアーを突
出せしめ、この二列の製氷コア一群の中間に位置し、か
つ列方向に延出されて製氷コアーの方向に揺動する第1
の攪拌ひれど、この第1の撹拌ひれに直交状に設け、各
列の隣合うコアー間に位置した第2の攪拌ひれど、この
第2の攪拌ひれの先端に第1の攪拌ひれど平行に設け、
前記製氷コアーに対して第1のひれによる揺動部分とは
反対側の部分で揺動する補助ひれとを備えた製氷機の攪
拌装置。A large number of ice-making cores arranged in at least two rows and arranged at equal intervals are protruded from the bottom surface of an ice-making tank filled with ice-making water, and the ice-making cores are located between the two rows of ice-making cores and extend in the row direction. The first part that is taken out and swings in the direction of the ice making core.
A stirring fin is provided perpendicularly to the first stirring fin, and a second stirring fin is located between adjacent cores in each row, and the first stirring fin is parallel to the tip of the second stirring fin. established in
A stirring device for an ice making machine, comprising an auxiliary fin that swings at a portion opposite to the swinging portion of the first fin with respect to the ice making core.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1978136686U JPS583021Y2 (en) | 1978-10-03 | 1978-10-03 | Ice maker stirring device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1978136686U JPS583021Y2 (en) | 1978-10-03 | 1978-10-03 | Ice maker stirring device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5552068U JPS5552068U (en) | 1980-04-07 |
JPS583021Y2 true JPS583021Y2 (en) | 1983-01-19 |
Family
ID=29108141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1978136686U Expired JPS583021Y2 (en) | 1978-10-03 | 1978-10-03 | Ice maker stirring device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS583021Y2 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS509644U (en) * | 1973-05-22 | 1975-01-31 |
-
1978
- 1978-10-03 JP JP1978136686U patent/JPS583021Y2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS509644U (en) * | 1973-05-22 | 1975-01-31 |
Also Published As
Publication number | Publication date |
---|---|
JPS5552068U (en) | 1980-04-07 |
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