JPH0243987B2 - - Google Patents
Info
- Publication number
- JPH0243987B2 JPH0243987B2 JP59133973A JP13397384A JPH0243987B2 JP H0243987 B2 JPH0243987 B2 JP H0243987B2 JP 59133973 A JP59133973 A JP 59133973A JP 13397384 A JP13397384 A JP 13397384A JP H0243987 B2 JPH0243987 B2 JP H0243987B2
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- temperature
- water temperature
- water
- heater
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 131
- 238000009835 boiling Methods 0.000 claims description 7
- 239000008400 supply water Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims 3
- 230000005611 electricity Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2021—Storage heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/16—Reducing cost using the price of energy, e.g. choosing or switching between different energy sources
- F24H15/164—Reducing cost using the price of energy, e.g. choosing or switching between different energy sources where the price of the electric supply changes with time
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/174—Supplying heated water with desired temperature or desired range of temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
- F24H15/215—Temperature of the water before heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
- F24H15/223—Temperature of the water in the water storage tank
- F24H15/225—Temperature of the water in the water storage tank at different heights of the tank
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/269—Time, e.g. hour or date
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/355—Control of heat-generating means in heaters
- F24H15/37—Control of heat-generating means in heaters of electric heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/395—Information to users, e.g. alarms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/40—Control of fluid heaters characterised by the type of controllers
- F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
- F24H15/421—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Description
［発明の技術分野］
本発明は余剰深夜電力を使用して湯沸しができ
る貯湯式電気温水器に関する。
［発明の技術的背景とその問題点］
従来、深夜電力を使用して湯沸しを行うタイプ
の貯湯式電気温水器に用いられている保温タンク
の容量およびこの保温タンク内に給水された水を
加熱するための深夜電力用ヒータのヒータ容量と
は、約10℃の水を深夜電力供給時間内に約87℃の
湯に沸上げできる値に設定されている。
しかしながら、上記設定値は１年を通してほぼ
平均値に設定されているために、真冬のように水
温が０〜10℃まで低下する場合は、深夜電力供給
時間終了時刻までに設定温度である87℃に達しな
い場合があつた。また、冬季においては台所等で
の湯の使用量が増大し湯量が不足する問題もあつ
た。さらに、周囲温度が低いために、タンク、配
管の放熱損失が大きくなり、上記湯量不足をさら
に助長している。
上記の問題を回避するために、保温タンク内に
深夜電力用ヒータに他に、昼間電力用の補助ヒー
タを取付け、昼間時において保温タンク内の温度
が極端に低下した場合や湯を使いすぎて湯が供給
されなかつた場合等に、補助ヒータを投入して保
温タンク内の湯を加熱するようにしたものがあ
る。
しかし、このような補助ヒータを設けた貯湯式
電気温水器にあつても未だ解決しなければならな
い次のような課題があつた。すなわち、従来の貯
湯式電気温水器においては、湯を使用する人が湯
を使用しようとして湯の温度が設定温度以下に低
下していることを発見した後、始めて補助ヒータ
のスイツチを投入る。補助ヒータを投入しても湯
の温度が設定温度に達するまでに一定の時間が必
要であるので、使用者は湯の温度が設定温度に達
するまで待たなければならなかつた。
［発明の目的］
そこで本発明は、保温タンクへの供給水温に関
係なく所定湯温まで高めたり供給水温の状態に応
じた沸上がり湯温に制御でき、このうち供給水温
に関係なく所定湯温まで高める場合に深夜電力供
給時間終了時刻までに設定湯温に達しなければ自
動的に補助ヒータを通電して寒い冬季においても
確実に安定した湯温を得ることができ、かつ補助
ヒータ通電か否かを任意に切替えできて一日中常
に一定量の湯を確実に確保できる無駄のない貯湯
式電気温水器を提供することを目的とする。
［発明の概要］
本発明は、保温タンクへの給水水温に関係なく
所定湯温まで高める固定湯温制御及び給水水温の
状態に応じた沸上がり湯温に自動制御する自動湯
温制御とを設定する湯温切替え手段と補助ヒータ
へ通電するか否かを切替え設定する補助ヒータス
イツチとを備え、深夜電力が投入された場合に第
１湯温制御手段により上記自動湯温制御が設定さ
れていれば、深夜電力時間の間に深夜電力ヒータ
に通電を行つて保温タンク内の水及び湯を沸上が
り湯温に高め、又、深夜電力が投入された場合に
第２湯温制御手段により上記固定湯温制御が設定
されていれば、深夜電力時間の間に深夜電力ヒー
タに通電を行つて保温タンク内の水及び湯を所定
温度に高め、さらにまた深夜電力時間の終了直後
に第２湯温制御手段の湯温制御により保温タンク
内の水及び湯が所定湯温に達していなければ第１
補助通電手段により所定湯温に達するまで補助ヒ
ータを通電し、又深夜電力が投入されていない場
合に補助ヒータスイツチが通電に設定されていれ
ば、第２補助通電手段により保温タンク内の水及
び湯が所定湯温に達しているかを判断するととも
に保温タンク内の残湯量が一定量以上であるかを
判断し、保温タンク内の水及び湯が所定湯温に達
しかつ残湯量が一定量以上となるまで補助ヒータ
への通電を行う。
［発明の実施例］
以下、本発明の一実施例を図面を参照して説明
する。
第１図は例えば370の水量を貯えることがで
きる保温式の保温タンク１１をケースＡ内に収納
した電気温水器の構成を概略的に示す図で、この
保温タンク１１は底部に給水管（図示せず）を設
けるとともに天部に給湯管（図示せず）を設け、
給水管から給水される水によつてタンク内の湯が
上部に押し上げられる押上げ式になつている。前
記保温タンク１１の外部側壁には湯量検出手段と
しての残湯量や湯温を検出する温度センサ１２，
１３，１４が取付けられている。すなわち、第１
の温度センサ１２は湯量検出手段として残湯量
「230」を検出するとともに温度検出手段として
湯温を検出する位置に取付けられ、第２の温度セ
ンサ１３は残湯量「120」を検出する位置に取
付けられ、第３の温度センサ１４は残湯量「60
」を検出する位置に取付けられいる。また、前
記保温タンク１１の下部内壁には深夜電力用ヒー
タ１５及び補助ヒータ１６が取付けられ、かつ深
夜電力用ヒータ１５の下方に位置して給水水温を
検出する第４の温度センサ１７が取付けられてい
る。
前記ケースＡには操作部Ｂが設けられ、その操
作部Ｂには第２図に示すように「日」〜「土」の
各曜日に対応して曜日予約スイツチ１８ａ，１８
ｂ，１８ｃ，１８ｄ，１８ｅ，１８ｆ，１８ｇ及
び曜日LED（発光ダイオード）１９ａ，１９ｂ，
１９ｃ，１９ｄ，１９ｅ，１９ｆ，１９ｇが配置
されているとともに、今日の曜日の表示用LED
２０ａ、沸上げ日の予約表示用LED２０ｂ及び
今日の曜日設定か湯上げ日の予約設定かを切替え
るための選択スイツチ２１が配置されている。ま
た、前記操作部Ｂには固定湯温設定表示用LED
２２ａ、自動湯温高め設定表示用LE２２ｂ、自
動湯温標準設定表示用LED２２ｃ、自動湯温低
め設定表示用LED２２ｄが配置されているとと
もに、湯温制御を「固定」「高め自動」「標準自
動」「低め自動」のいずれかに選択的に設定する
ための湯温切替えスイツチ２３が配置されてい
る。ここで、「固定」湯温制御とは給水水温の状
態に関係なく、例えば湯温を87℃の最高温度まで
高める湯温制御を言い、「高め自動」「標準自動」
「低め自動」の湯温制御とは給水水温の状態によ
つて例えば下表に示すような湯温制御を行うこと
を言う。
[Technical Field of the Invention] The present invention relates to a hot water storage type electric water heater that can heat water using surplus late-night electricity. [Technical background of the invention and its problems] Capacity of a heat retention tank used in conventional hot water storage type electric water heaters that heat water using electricity late at night, and the capacity of the water supplied to the heat retention tank to heat the water. The heater capacity of the late-night power heater is set to a value that can boil water at approximately 10°C to approximately 87°C during the late-night power supply hours. However, since the above set value is set to approximately the average value throughout the year, when the water temperature drops to 0 to 10 degrees Celsius, such as in the middle of winter, the set temperature will reach 87 degrees Celsius by the end of the midnight power supply period. There were cases where the amount was not reached. Additionally, in winter, the amount of hot water used in kitchens and other areas increases, resulting in a problem of insufficient hot water. Furthermore, because the ambient temperature is low, heat radiation loss from the tank and piping increases, further aggravating the aforementioned shortage of hot water. In order to avoid the above problem, in addition to the heater for late-night power use, an auxiliary heater for daytime power is installed in the heat retention tank, in case the temperature inside the heat retention tank drops extremely during the day or if too much hot water is used. Some devices are designed to turn on an auxiliary heater to heat the hot water in the heat retention tank when hot water is not supplied. However, even with a hot water storage type electric water heater equipped with such an auxiliary heater, the following problems still need to be solved. That is, in conventional hot water storage type electric water heaters, the auxiliary heater is turned on only after the person trying to use the hot water discovers that the temperature of the hot water has fallen below the set temperature. Even when the auxiliary heater is turned on, a certain amount of time is required for the temperature of the hot water to reach the set temperature, so the user has to wait until the temperature of the hot water reaches the set temperature. [Purpose of the Invention] Therefore, the present invention is capable of increasing the water temperature to a predetermined temperature regardless of the water temperature supplied to the heat insulating tank, or controlling the boiling water temperature according to the state of the water supply temperature. If the set water temperature is not reached by the end of the midnight power supply period, the auxiliary heater will be automatically energized to ensure a stable water temperature even in the cold winter season, and whether the auxiliary heater is energized or not. To provide an efficient hot water storage type electric water heater capable of arbitrarily switching the hot water and reliably securing a constant amount of hot water all day long. [Summary of the Invention] The present invention provides fixed hot water temperature control that raises the hot water temperature to a predetermined temperature regardless of the water temperature supplied to the heat retention tank, and automatic hot water temperature control that automatically controls the boiling water temperature according to the state of the water supply water temperature. The hot water temperature switching means and the auxiliary heater switch for switching and setting whether or not to energize the auxiliary heater are provided, and if the automatic hot water temperature control is set by the first hot water temperature control means when power is turned on late at night. , energizes the late-night electric heater during the late-night electric power time to raise the water and hot water in the heat insulating tank to the boiling water temperature, and when the late-night electric power is turned on, the second hot water temperature control means adjusts the above-mentioned fixed hot water temperature. If the control is set, the late-night power heater is energized during the late-night power period to raise the water and hot water in the heat retention tank to a predetermined temperature, and then immediately after the late-night power period ends, the second hot water temperature control means is activated. If the water and hot water in the insulating tank do not reach the specified hot water temperature by the hot water temperature control, the first
The auxiliary energizing means energizes the auxiliary heater until the predetermined water temperature is reached, and if the auxiliary heater switch is set to energize when the power is not turned on late at night, the second auxiliary energizing means energizes the water in the heat retention tank. Determine whether the hot water has reached a predetermined temperature and determine whether the amount of hot water remaining in the insulating tank is at least a certain amount. The auxiliary heater is energized until . [Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram schematically showing the configuration of an electric water heater in which a heat-retaining type heat-retaining tank 11 that can store, for example, 370 ml of water is housed in a case A. This heat-retaining tank 11 has a water supply pipe ( (not shown) and a hot water pipe (not shown) on the top.
It is a push-up type tank where the hot water in the tank is pushed upwards by the water supplied from the water supply pipe. On the external side wall of the heat retention tank 11, there is a temperature sensor 12 for detecting the amount of remaining hot water and the temperature of the hot water as a means for detecting the amount of hot water.
13 and 14 are attached. That is, the first
The temperature sensor 12 is installed at a position to detect the remaining hot water amount "230" as a hot water amount detection means and the hot water temperature as a temperature sensing means, and the second temperature sensor 13 is installed at a position to detect the remaining hot water amount "120". The third temperature sensor 14 detects the amount of remaining hot water “60
” is installed at the position that detects the Further, a late-night power heater 15 and an auxiliary heater 16 are attached to the lower inner wall of the heat retention tank 11, and a fourth temperature sensor 17 is installed below the late-night power heater 15 to detect the water supply temperature. ing. The case A is provided with an operation section B, and the operation section B has day reservation switches 18a and 18 corresponding to each day of the week from "Sunday" to "Saturday" as shown in FIG.
b, 18c, 18d, 18e, 18f, 18g and day of the week LED (light emitting diode) 19a, 19b,
19c, 19d, 19e, 19f, 19g are arranged, as well as an LED for displaying today's day of the week.
20a, an LED 20b for displaying a reservation for a boiling day, and a selection switch 21 for switching between setting today's day of the week and setting a reservation for a boiling day. In addition, the operation part B has an LED for displaying the fixed hot water temperature setting.
22a, LE 22b for displaying automatic hot water temperature higher setting, LED 22c for displaying automatic hot water temperature standard setting, and LED 22d for displaying automatic hot water temperature lower setting are arranged, and hot water temperature control can be set to "fixed", "high automatic", or "standard automatic". A hot water temperature changeover switch 23 is provided for selectively setting one of the "lower automatic" modes. Here, "fixed" water temperature control refers to water temperature control that raises the water temperature to a maximum temperature of 87℃, regardless of the state of the water supply water temperature, and "high automatic" and "standard automatic"
"Low automatic" hot water temperature control refers to performing hot water temperature control as shown in the table below depending on the state of the water supply water temperature.
【表】【table】
Claims (1)
力用の補助ヒータを設けて前記保温タンク内の水
又は湯を加熱する貯湯式電気温水器において、前
記保温タンク内の水又は湯の温度を検出する温度
検出手段と、前記保温タンクへの給水水温に関係
なく所定湯温まで高める固定湯温制御及び前記給
水水温の状態に応じた沸上がり湯温に自動制御す
る自動湯温制御とを設定する湯温切替え手段と、
前記補助ヒータへ通電するか否かを切替え設定す
る補助ヒータスイツチと、深夜電力が投入された
場合に前記湯温切替え手段において自動湯温制御
が設定されていれば、深夜電力時間の間に前記深
夜電力ヒータに通電を行つて前記温度検出手段で
検出された前記保温タンク内の水及び湯を前記沸
上がり湯温に高める第１湯温制御手段と、深夜電
力が投入された場合に前記湯温切替え手段におい
て固定湯温制御が設定されていれば、前記深夜電
力時間の間に前記深夜電力ヒータに通電を行つて
前記温度検出手段で検出された前記保温タンク内
の水及び湯を前記所定湯温に高める第２湯温制御
手段と、前記深夜電力時間の終了直後に前記第２
湯温制御手段の湯温制御により前記保温タンク内
の水及び湯が前記所定湯温に達していなければこ
の所定湯温に達するまで前記補助ヒータを通電す
る第１補助通電手段と、前記深夜電力が投入され
ていない場合に前記補助ヒータスイツチが通電に
設定されていれば、前記保温タンク内の水及び湯
が前記所定湯温に達しているかを判断するととも
に前記保温タンク内の残湯量が一定量以上である
かを判断し、前記保温タンク内の水及び湯が前記
所定湯温に達しかつ前記残湯量が一定量以上とな
るまで前記補助ヒータへの通電を行う第２補助通
電手段とを具備したことを特徴とする貯湯式電気
温水器。1. In a hot water storage type electric water heater that heats water or hot water in the heat retention tank by installing a late-night power heater and a daytime power auxiliary heater in the heat retention tank, detecting the temperature of the water or hot water in the heat retention tank. A temperature detection means, a fixed hot water temperature control that raises the hot water temperature to a predetermined temperature regardless of the temperature of the water supplied to the heat retention tank, and an automatic hot water temperature control that automatically controls the hot water temperature to a boiling water temperature according to the state of the water supply water temperature. a switching means;
If automatic hot water temperature control is set in the auxiliary heater switch that switches and sets whether or not to energize the auxiliary heater, and in the hot water temperature switching means when power is turned on late at night, then a first hot water temperature control means for increasing the water and hot water in the thermal insulation tank to the boiling water temperature detected by the temperature detecting means by energizing the late-night power heater; If fixed hot water temperature control is set in the switching means, the late-night electric power heater is energized during the late-night electric power time, and the water and hot water in the thermal insulation tank detected by the temperature detecting means are changed to the predetermined hot water. a second hot water temperature control means for increasing the temperature to a warm temperature; and a second hot water temperature control means for increasing the temperature to
a first auxiliary energizing means that energizes the auxiliary heater until the predetermined hot water temperature is reached if the water and hot water in the thermal insulation tank do not reach the predetermined hot water temperature by the hot water temperature control of the hot water temperature control means; If the auxiliary heater switch is set to energize when the water is not turned on, it is determined whether the water and hot water in the heat retention tank have reached the predetermined hot water temperature, and the remaining amount of hot water in the heat retention tank is kept constant. a second auxiliary energizing means for determining whether the amount of hot water is equal to or higher than the predetermined amount, and energizing the auxiliary heater until the water and hot water in the heat retention tank reach the predetermined hot water temperature and the amount of remaining hot water reaches a predetermined amount or more; A hot water storage type electric water heater characterized by the following:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59133973A JPS6115041A (en) | 1984-06-28 | 1984-06-28 | Hot water storage type electric hot water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59133973A JPS6115041A (en) | 1984-06-28 | 1984-06-28 | Hot water storage type electric hot water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6115041A JPS6115041A (en) | 1986-01-23 |
| JPH0243987B2 true JPH0243987B2 (en) | 1990-10-02 |
Family
ID=15117399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59133973A Granted JPS6115041A (en) | 1984-06-28 | 1984-06-28 | Hot water storage type electric hot water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6115041A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01140454U (en) * | 1988-03-18 | 1989-09-26 | ||
| JPH01239344A (en) * | 1988-03-18 | 1989-09-25 | Shikoku Henatsuki Kk | Hot water storage type electric hot water heater |
| JP2504159Y2 (en) * | 1989-05-09 | 1996-07-10 | 東芝機器株式会社 | Electric water heater |
| CN104566992B (en) * | 2013-10-09 | 2018-01-12 | 海尔集团公司 | The control method and electric heater of a kind of electric heater |
| US10779531B2 (en) | 2015-02-26 | 2020-09-22 | Kao Corporation | Insect repellent |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5213001U (en) * | 1975-07-14 | 1977-01-29 |
-
1984
- 1984-06-28 JP JP59133973A patent/JPS6115041A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5213001U (en) * | 1975-07-14 | 1977-01-29 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6115041A (en) | 1986-01-23 |
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