JPS6137257Y2 - - Google Patents
Info
- Publication number
- JPS6137257Y2 JPS6137257Y2 JP12358081U JP12358081U JPS6137257Y2 JP S6137257 Y2 JPS6137257 Y2 JP S6137257Y2 JP 12358081 U JP12358081 U JP 12358081U JP 12358081 U JP12358081 U JP 12358081U JP S6137257 Y2 JPS6137257 Y2 JP S6137257Y2
- Authority
- JP
- Japan
- Prior art keywords
- steam
- conveyor
- casing
- steaming
- gas
- 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
- 238000010025 steaming Methods 0.000 claims description 22
- 238000007664 blowing Methods 0.000 claims description 8
- 239000007789 gas Substances 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000000567 combustion gas Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 235000013305 food Nutrition 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 235000009508 confectionery Nutrition 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- -1 improving the type Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Landscapes
- Commercial Cooking Devices (AREA)
Description
【考案の詳細な説明】
この考案は、水蒸気と燃焼ガスとを併用して加
熱するようになつた蒸し容器移動式のスチームオ
ーブンに関するものである。[Detailed Description of the Invention] This invention relates to a steam oven with a movable steaming container that uses a combination of steam and combustion gas for heating.
従来、熱処理の済んでない菓子類、食品類材料
を蒸し加工する場合、飽和水蒸気、または、過熱
水蒸気が用いられてきた。 Conventionally, when confectionery and food materials that have not been heat-treated are steamed, saturated steam or superheated steam has been used.
飽和水蒸気を用いる場合、凝縮伝熱と呼ばれ、
周知のように、水蒸気の凝縮により、伝熱速度は
激増するが、その代償として、凝縮水により、被
処理物が濡れ、例えば、カツプに収納された食品
の場合、カツプの上面に水適が溜まるので、除
去、または蒸去する必要があつた。 When using saturated steam, it is called condensation heat transfer,
As is well known, condensation of water vapor dramatically increases the rate of heat transfer, but at the cost of this, the condensed water wets the object to be treated. For example, in the case of food stored in a cup, water drips onto the top of the cup. Since it accumulates, it is necessary to remove or evaporate it.
水滴の生成を防ぎ、または、蒸発除去するため
には、過熱水蒸気を用いれば良く、従来は間接熱
交換器を使用して過熱するか、高圧水蒸気を、絞
り膨脹させることにより、作られていた。 In order to prevent the formation of water droplets or to remove them by evaporation, it is sufficient to use superheated steam, which was conventionally produced by superheating using an indirect heat exchanger or by squeezing and expanding high-pressure steam. .
過熱水蒸気のかわりに、水蒸気と、例えば、プ
ロパンの燃焼ガスとを混合しても、露点より高温
のガス(不飽和ガス)が生成して同様の効果があ
る。 Even if steam and combustion gas, such as propane, are mixed instead of superheated steam, a gas (unsaturated gas) having a temperature higher than the dew point is generated, and the same effect can be obtained.
例えば、特開昭55−156545号では、パン、菓子
などの生地の加熱、焼成工程の当初に、該生地を
焼成温度に過熱した高温水蒸気で処理する方法が
示されており、過熱水蒸気の範疇に、高温不飽和
ガスが含まれている。 For example, JP-A-55-156545 discloses a method of treating dough for bread, confectionery, etc. with high-temperature steam superheated to the baking temperature at the beginning of the heating and baking process, which falls within the category of superheated steam. contains high-temperature unsaturated gases.
過熱水蒸気、高温不飽和ガスの効果は、上記し
た、水滴防止、除去効果のほかに、高温に基づく
伝熱速度の増加効果がある。伝熱速度は速さに失
すると、被処理材料の中心が適温に達する以前
に、表層部温度が過上昇し、また、遅い場合に
は、オーブン容積の過大化を招くので、最適な範
囲があり、この範囲は、被処理材料の状態(温
度:予熱段階では、伝熱速度が大きい方が良い。
含水率;表面が完全に濡れている。いわゆる恒率
乾燥期間、部分的に濡れている減率第1段乾燥期
間、乾いている減率第2段乾燥期間に応じ、順
次、伝熱速度を下げることが望ましい。)したが
つて、トンネルキルン方式で処理する場合、移動
方向に沿つた位置ごとに調節を行わなければ、良
質の製品を得ることができず、かつ、装置の小型
化を図ることができない。しかも、この種スチー
ムオーブンは、、多種類の材料を処理できるよう
に作られていることが望ましく、季節、気温に応
じて、伝熱を調整することが必要であるので、位
置ごとの調整の必要性は、さらに増す。 The effects of superheated steam and high-temperature unsaturated gas include, in addition to the above-mentioned water droplet prevention and removal effects, an effect of increasing heat transfer rate due to high temperature. If the heat transfer rate is too fast, the temperature of the surface layer will rise excessively before the center of the material to be processed reaches the appropriate temperature, and if it is slow, the oven volume will become too large, so the optimum range is This range is based on the state of the material to be treated (temperature: in the preheating stage, the faster the heat transfer rate is, the better.
Moisture content: The surface is completely wet. It is desirable to sequentially lower the heat transfer rate according to the so-called constant rate drying period, the partially wet lapse rate first stage drying period, and the dry lapse rate second stage drying period. ) Therefore, when processing with a tunnel kiln method, it is not possible to obtain a high-quality product and it is not possible to downsize the apparatus unless adjustments are made for each position along the direction of movement. Moreover, it is desirable that this type of steam oven be made to be able to process a wide variety of materials, and it is necessary to adjust heat transfer according to the season and temperature, so adjustments can be made for each position. The need will continue to grow.
しかるに、従来のトンネルキルン型スチームオ
ープンで、移動方向に沿つた各位置で独自に、伝
熱速度の調整可能なものはなく、その意味で、製
品食品の品質、オーブンの小型化、低廉化に、問
題を残したまま、現在に至つている。 However, there is no conventional tunnel kiln type steam open that allows the heat transfer rate to be independently adjusted at each position along the direction of movement, which has implications for the quality of food products, miniaturization of ovens, and cost reduction. , the problem remains until now.
本考案の目的は、上記問題点を克服した、燃
料、好ましくは、LNG、LPG、都市ガスなどの
燃焼ガスと、水蒸気のそれぞれの使用量およびそ
の混合比をオーブン内の位置に応じ、適宜変え、
これによつて、高温含水蒸気ガスの温度と水蒸気
含有量とを変えて、伝熱速度と材料内の水移動速
度とを、各位置に応じ、したがつて、各仕上がり
段階に応じて調節し得るようになつたスチームオ
ーブンを提供することである。蒸気または燃焼ガ
スだけで加熱し得ることは言うまでもない。 The purpose of the present invention is to overcome the above-mentioned problems by changing the amount of fuel, preferably combustion gas such as LNG, LPG, city gas, and water vapor, and their mixing ratio as appropriate depending on the position in the oven. ,
This allows the temperature and water vapor content of the hot water-containing steam gas to be varied to adjust the rate of heat transfer and the rate of water movement within the material for each location and therefore for each finishing stage. The goal is to provide a steam oven that is now available. It goes without saying that heating can be done with steam or combustion gas alone.
本考案の他の目的は、蒸気による蒸し作業の適
宜時期に、高温ガス中の燃焼ガスの量を殖やして
焙き効果を加え得る。蒸し容器移動式のスチーム
オープンを提供することである。 Another object of the present invention is to increase the amount of combustion gas in the hot gas at an appropriate time during the steaming operation to add a roasting effect. The purpose of the present invention is to provide a mobile steam opener for steaming containers.
以下実施例により、この考案を具体的に説明す
るが、第1図はその正面断面図、第2図は、その
内部構造の概略を示す側面(1部断面)図であ
る。 This invention will be specifically explained below with reference to Examples. FIG. 1 is a front sectional view thereof, and FIG. 2 is a side (partial sectional) view schematically showing its internal structure.
スチームオープン1は、堅方向(蒸し容器の搬
送方向)に長い水平ダクト状ケーシング2、スチ
ームオープン1内に蒸し容器を送入し、搬送し、
取り出すための、コンベヤ3、ケーシング2内に
設置された複数の水蒸気吹込管4、複数の燃焼器
5a,5bを主要構成部分としている。 The steam open 1 has a horizontal duct-like casing 2 that is long in the rigid direction (transport direction of the steam container), and the steam container is fed into the steam open 1 and transported.
The main components include a conveyor 3 for taking out the steam, a plurality of steam blowing pipes 4 installed in the casing 2, and a plurality of combustors 5a and 5b.
ケーシング2は、断熱材により保温されたほぼ
水平の堅長のダクト状中空箱で、地面から適宜間
隔を置いて設置されており、第2図に示すよう
に、堅方向の一端(図の左端)に、蒸し容器送入
用入口6、他端(右端)に蒸し上り容器取出し用
出口7が設けてあり、それぞれの上部に取付けた
蝶番により仕切戸6a,7aが吊設してある。空
気の漏入を僅少ならしめるため、本実施例では、
入口、出口の近傍部分6b,7bの高さを、蒸し
容器の高さに合わせて、小さくしてある。(蒸し
容器の高さが小さく近傍部分6b,7bがじゆう
分長い場合、仕切戸6a,7aを省略できる。)
ケーシング2の上部の適宜位置に廃ガスを放出す
るためと、オーブン1内と大気圧とほぼ同じに保
ち、オープン外へ高温ガスの噴出を避けるため
の、調節ダンパー付スタツク8が突設してあり、
また、ケーシング2の側壁の下部には、ガス水蒸
気などの配管類およびコンベヤ3の帰り部分を保
護するための保護板2aが取付けられている。同
様に、オーブンの入口側、出口側にも、保護板2
b,2cが取付けられている。ケーシング2が、
上記した配管類、コンベヤを固定係着するために
用いられるのはいうまでもない。 Casing 2 is a nearly horizontal, rigid, duct-shaped hollow box that is insulated with heat insulating material, and is installed at an appropriate distance from the ground. ) is provided with an inlet 6 for feeding the steaming container and an outlet 7 for taking out the steamed container at the other end (right end), and partition doors 6a and 7a are suspended by hinges attached to the upper part of each. In order to minimize air leakage, in this example,
The heights of the portions 6b and 7b near the inlet and outlet are made small to match the height of the steaming container. (If the height of the steaming container is small and the adjacent parts 6b and 7b are quite long, the partition doors 6a and 7a can be omitted.)
A stack 8 with an adjustable damper is protruded from the upper part of the casing 2 to discharge waste gas at an appropriate position, and to maintain the pressure inside the oven 1 to be approximately the same as the atmospheric pressure and to avoid blowing out high temperature gas outside the oven. can be,
Furthermore, a protection plate 2a is attached to the lower part of the side wall of the casing 2 to protect piping for gas and steam and the return portion of the conveyor 3. Similarly, protect plates 2 are placed on the inlet and outlet sides of the oven.
b, 2c are attached. Casing 2 is
Needless to say, it is used to securely attach the above-mentioned piping and conveyor.
ケーシング2、保護板2a,2b,2cには、
覗き窓、覗き孔、マンホール、ハンドホールなど
が必要に応じて設けられており、また、ケーシン
グ2の底部に、ドレン抜き孔が設けられている
が、慣用手段であるので省略した。 The casing 2, protection plates 2a, 2b, 2c include
A viewing window, a peephole, a manhole, a handhole, etc. are provided as necessary, and a drain hole is provided at the bottom of the casing 2, but this is omitted because it is a commonly used means.
コンベヤ3としては、スラツトコンベヤ、ネツ
トコンベヤなどが用いられ、適宜の駆動装置(図
示せず)により、第2図において、スプロケツト
ホイール9a,9b,9c,9d,9e,9fと
レール10に支えられて矢印方向に回転し、搬送
工程で、蒸し容器を左から右に搬送する。 As the conveyor 3, a slat conveyor, a net conveyor, etc. are used, and as shown in FIG. It is supported and rotates in the direction of the arrow, and in the conveyance process, the steaming container is conveyed from left to right.
蒸し容器は、第2図において、コンベヤ3の左
端において、適宜の方法で、コンベヤ上に載置さ
れ、入口仕切戸6aをくぐつてオーブン内に入
り、後述するように、水蒸気と燃焼ガスで蒸され
(焙かれ)ながら右方に移動し、出口仕切戸7a
をくぐつて、コンベヤ3の右端に至り、適宜方法
で取出される。 The steaming container is placed on the conveyor 3 in an appropriate manner at the left end of the conveyor 3 in FIG. While being roasted, move to the right and exit through the exit partition door 7a.
It passes through, reaches the right end of the conveyor 3, and is taken out by an appropriate method.
コンベヤ3の搬送部3aから適宜間隔を置いた
下部に、その移動方向に竝んだ複数の水蒸気吹込
管4、上記搬送部3aから適宜間隔を置いて、上
下に、それぞれ、燃焼器5a,5bが、ケーシン
グ2の壁に支持され、設置されている。 A plurality of steam blowing pipes 4 are arranged in the lower part of the conveyor 3 at an appropriate distance from the conveyance section 3a, and combustors 5a and 5b are arranged above and below at an appropriate distance from the conveyance section 3a. is supported and installed on the wall of the casing 2.
水蒸気吹込管4は、第1図に示されているよう
に先端が封じられた中空円筒で、円筒部に複数の
小孔4aが、適宜間隔を置いて穿設されており、
水蒸気主管11から調節弁11aを介して、水蒸
気が送入され、前記小孔4aから吹き出される。
水蒸気吹込管4は回動可能で、水蒸気の吹出方向
が可変であることが望ましい。 As shown in FIG. 1, the steam blowing pipe 4 is a hollow cylinder with a sealed tip, and a plurality of small holes 4a are bored in the cylinder at appropriate intervals.
Steam is introduced from the steam main pipe 11 via the control valve 11a, and is blown out from the small hole 4a.
It is desirable that the steam blowing pipe 4 is rotatable and that the direction of steam blowing is variable.
燃焼器5a,5bは、第1図にその断面が示さ
れているように、同心二重管構造になつており、
内管内を、LPG、都市ガスなどの燃料と一次空気
の混合物が、また、内外管で構成される環状部を
二次空気が通るようになつており、この両者が、
バーナー部5a,5bで混合して燃焼する。燃料
と一次空気の混合物は、ガス主管12a,12b
の内管から調節弁12a,12bを介して、ま
た、二次空気はガス主管の環状部から調節弁12
a″,12b″を介して燃焼器に供給される。燃料
と一次空気の混合物、二次空気の通路を交換して
も、バーナーの燃焼に影響は少なく、また、二重
管でなく別個の管を使用しても差支えないのはも
ち論で、燃焼系統の細部構造にはこだわらない。 The combustors 5a and 5b have a concentric double pipe structure, as the cross section is shown in FIG.
A mixture of fuel such as LPG or city gas and primary air passes through the inner pipe, and secondary air passes through the annular part made up of the inner and outer pipes.
They are mixed and burned in burner sections 5a and 5b. The mixture of fuel and primary air flows through the main gas pipes 12a, 12b.
The secondary air is passed from the inner pipe of the main gas pipe through the control valves 12a and 12b, and the secondary air is passed from the annular part of the main gas pipe to the control valve 12.
a″, 12b″ to the combustor. It goes without saying that replacing the fuel/primary air mixture and secondary air passages will have little effect on the burner's combustion, and there is no harm in using separate pipes instead of double pipes. We do not care about the detailed structure of the system.
上部に設置された燃焼器5aの下部に遮閉板1
3が設置してあるが、その作用は、燃焼器5aか
らの幅射熱をコンベヤ3上に直接与えないための
もので、必須ではない。 A shielding plate 1 is installed at the bottom of the combustor 5a installed at the top.
3 is installed, but its function is to prevent radiant heat from the combustor 5a from being directly applied to the conveyor 3, and is not essential.
なお、燃焼器5a,5bのケーシング2貫通部
には回動可能な継手14a,14bが設けてあ
り、バーナー5a,5bの炎の方向を変えること
ができる。 Incidentally, rotatable joints 14a, 14b are provided in the casing 2 penetrating portions of the combustors 5a, 5b, so that the direction of the flame of the burners 5a, 5b can be changed.
上記具体例で説明したが、この考案の要旨とす
るところは、一端に蒸し容器送り込み用入口、他
端に蒸し容器取り出し用出口を有するほぼ水平の
ダクト状ケーシングと;該ケーシング内で、蒸し
容器を前記入口から前記出口へ搬送し得るコンベ
ヤと;該コンベヤの搬送部から適宜間隔を置いた
上部に、該コンベヤの搬送部の進行方向に連設さ
れた、それぞれ流量調節可能な複数個の燃焼器
と;該コンベヤの搬送部から適宜間隔を置いた下
部に、該コンベヤの進行方向に連設された、いず
れも独立で流量調節可能な、複数個の水蒸気吸込
管と、複数個の燃焼器を有することを特徴とする
スチームオーブンに存する。 As explained in the above specific example, the gist of this invention is to include a nearly horizontal duct-like casing having an inlet for feeding the steaming container at one end and an outlet for taking out the steaming container at the other end; a conveyor capable of conveying from the inlet to the outlet; a plurality of combustion chambers each having an adjustable flow rate and connected in the traveling direction of the conveying section of the conveyor at an upper portion at an appropriate distance from the conveying section of the conveyor; a plurality of steam suction pipes, each of which can independently adjust the flow rate, and a plurality of combustors, which are connected in the traveling direction of the conveyor at a lower part thereof at an appropriate distance from the conveyance section of the conveyor; and a plurality of combustors. A steam oven characterized by having:
本考案は上記した構成になつているので、蒸し
容器がスチームオープン内を、入口から出口方向
へ移動する間に、種類の蒸し(焙き)作業を行う
ことが可能で、例えば、初期(入口近く)では飽
和水蒸気のみで、蒸し作業を行い、凝縮伝熱を行
わせて、蒸し速度を高め、凝縮水を滴下除去し、
蒸し容器の温度が上昇して、温度差が減り、凝縮
伝熱の効果が減つた時期には、水蒸気と燃焼ガス
を含んだ高温ガスで加熱することにより温度差を
大にして伝熱率を向上させると共に、容器の乾燥
を行わせ、または、燃焼ガスだけで焦げ目をつけ
るなど、原料を蒸し、蒸し焙き、または焙く作業
に広く用いることができ、種類の、風味、外観、
含水率の異なつた製品を、大量生産することがで
きる。 Since the present invention has the above-described structure, it is possible to perform various types of steaming (roasting) work while the steaming container moves inside the steam open from the entrance to the exit. (nearby) performs steaming using only saturated steam, causes condensation heat transfer to increase the steaming rate, and removes condensed water dripping.
When the temperature of the steaming container increases, the temperature difference decreases, and the effect of condensation heat transfer decreases, heating with high-temperature gas containing steam and combustion gas increases the temperature difference and increases the heat transfer rate. It can be widely used for steaming, steaming, or roasting raw materials, such as drying the container or browning with just combustion gas, improving the type, flavor, appearance,
Products with different moisture contents can be mass-produced.
また、水蒸気を温度上昇させるために、燃焼ガ
スを直接混合するので、設備費が廉価で、熱効率
が高い。 Furthermore, since combustion gas is directly mixed to raise the temperature of steam, equipment costs are low and thermal efficiency is high.
第1図はこの考案の実施例の正面断面図、第2
図はその内部構成の概略を示す側面(1部断面)
図である。
1……スチームオープン、2……ケーシング、
3……コンベヤ、4……水蒸気吹込管、5a,5
b……燃焼器、6……蒸し容器入口、7……蒸し
容器出口、8……スタツク、9a,9b,9c,
9d,9e,9f……スプロケツトホイール、1
0a,10b……レール、11……水蒸気主管、
12a,12b……ガス主管、13……フード。
Figure 1 is a front cross-sectional view of an embodiment of this invention;
The figure shows a side view (partial cross section) of the internal structure.
It is a diagram. 1...Steam open, 2...Casing,
3...Conveyor, 4...Steam blowing pipe, 5a, 5
b...Combustor, 6...Steaming container inlet, 7...Steaming container outlet, 8...Stack, 9a, 9b, 9c,
9d, 9e, 9f...Sprocket wheel, 1
0a, 10b...Rail, 11...Steam main pipe,
12a, 12b... gas main pipe, 13... hood.
Claims (1)
器取り出し用出口を有するほぼ水平のダクト状ケ
ーシングと;該ケーシング内で、蒸し容器を前記
入口から前記出口へ搬送し得るコンベヤと;該コ
ンベヤの搬送部から適宜間隔を置いた上部に、そ
の進行方向に列設された、それぞれ流量調節可能
な複数個の燃焼器と;前記コンベヤの搬送部から
適宜間隔を置いた下部に、その進行方向に列設さ
れた、いずれも独立で流量調節可能な、複数個の
水蒸気吹込管と、複数個の燃焼器と;を有するこ
とを特徴とするスチームオーブン。 a substantially horizontal duct-like casing having an inlet for feeding the steaming container at one end and an outlet for removing the steaming container at the other end; a conveyor capable of conveying the steaming container from the inlet to the outlet within the casing; a plurality of combustors each having a flow rate adjustable, arranged in a row in the direction of travel at an upper part of the conveyor at an appropriate distance from the transport part; A steam oven characterized by having a plurality of steam blowing pipes and a plurality of combustors, each of which is independently adjustable in flow rate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12358081U JPS5829283U (en) | 1981-08-20 | 1981-08-20 | steam oven |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12358081U JPS5829283U (en) | 1981-08-20 | 1981-08-20 | steam oven |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5829283U JPS5829283U (en) | 1983-02-25 |
JPS6137257Y2 true JPS6137257Y2 (en) | 1986-10-28 |
Family
ID=29917478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12358081U Granted JPS5829283U (en) | 1981-08-20 | 1981-08-20 | steam oven |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5829283U (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6136501A (en) * | 1984-07-30 | 1986-02-21 | Yamatake Honeywell Co Ltd | Valve positioner |
JPH0631076B2 (en) * | 1985-12-17 | 1994-04-27 | 三菱重工業株式会社 | Automatic marine steering system |
-
1981
- 1981-08-20 JP JP12358081U patent/JPS5829283U/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5829283U (en) | 1983-02-25 |
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