JPH0849915A - Automatic bath apparatus - Google Patents
Automatic bath apparatusInfo
- Publication number
- JPH0849915A JPH0849915A JP18234294A JP18234294A JPH0849915A JP H0849915 A JPH0849915 A JP H0849915A JP 18234294 A JP18234294 A JP 18234294A JP 18234294 A JP18234294 A JP 18234294A JP H0849915 A JPH0849915 A JP H0849915A
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- temperature
- water temperature
- bathtub
- reheating
- 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.)
- Granted
Links
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
- Control For Baths (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、浴槽への湯張り、浴槽
水の保温等を自動的に行う自動風呂装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic bath device which automatically fills a bathtub with water and keeps the bath water warm.
【０００２】[0002]
【従来の技術】一般に、浴槽に湯張りされた当初は、所
望の湯温であっても、これをそのまま放置すれば、自然
放熱によって次第に湯温が低下する。また、人が入浴し
た場合にも湯温が低下する。したがって、常に、所望の
湯温を保持して快適な入浴を楽しむためには、浴槽の湯
水を追い焚きすることが必要となる。2. Description of the Related Art Generally, even if a desired hot water temperature is initially set in a bathtub, if the hot water temperature is left as it is, the hot water temperature is gradually lowered by natural heat radiation. Also, when a person takes a bath, the hot water temperature drops. Therefore, in order to always maintain a desired hot water temperature and enjoy a comfortable bath, it is necessary to reheat the hot water in the bathtub.
【０００３】そこで、従来技術では、保温モードが設定
されている状態で、水位センサによって浴槽の水位上昇
が検出された場合には、入浴がなされたと判断し、浴槽
の湯温が予め決定した所望の湯温(以下、設定湯温Ｔsと
いう)に達するまで自動的に追い焚きを行うようにした
自動風呂装置が提供されている(たとえば、特開平３−
５６６２号公報参照)。Therefore, in the prior art, when the water level sensor detects an increase in the water level in the bathtub while the heat retention mode is set, it is determined that bathing has been performed and the hot water temperature in the bathtub is predetermined. There is provided an automatic bath device that automatically reheats until the hot water temperature (hereinafter referred to as the set hot water temperature Ts) is reached (for example, JP-A-3-
5662).
【０００４】このような従来の自動風呂装置の動作につ
いて、図６のフローチャートを参照してさらに詳しく説
明する。The operation of such a conventional automatic bath apparatus will be described in more detail with reference to the flowchart of FIG.
【０００５】いま、保温モードが設定された場合には
(ステップ１)、水位センサの検出出力に基づいて、浴槽
の水位上昇があるか否かを判断する(ステップ２)。Now, when the heat retention mode is set,
(Step 1) Based on the detection output of the water level sensor, it is determined whether or not the water level in the bathtub has risen (Step 2).
【０００６】水位上昇があれば、入浴がなされたと判断
し、追焚回路の循環ポンプを起動する(ステップ３)。If the water level rises, it is judged that the bath has been taken, and the circulation pump of the reheating circuit is started (step 3).
【０００７】次に、温度センサの検出出力に基づいて浴
槽の湯温ＴFを検出する(ステップ４)。そして、この湯
温ＴFを設定湯温Ｔsと比較する(ステップ５)。Next, the hot water temperature T F of the bathtub is detected based on the detection output of the temperature sensor (step 4). Then, this hot water temperature TF is compared with the set hot water temperature Ts (step 5).
【０００８】このとき、浴槽の実際の湯温ＴFが設定湯
温Ｔsよりも高ければ(ＴF≧Ｔs)、追焚運転の必要性が
ないので、循環ポンプを停止する(ステップ６)。At this time, if the actual hot water temperature T F of the bathtub is higher than the set hot water temperature Ts (T F ≧ Ts), there is no need for additional heating operation, so the circulation pump is stopped (step 6).
【０００９】これに対して、ステップ５で浴槽の実際の
湯温ＴFが設定湯温Ｔsよりも低ければ(ＴF＜Ｔs)、湯温
ＴFが設定湯温Ｔsに達するまで熱交換器のバーナを点火
して追焚運転を行う(ステップ７)。On the other hand, in step 5, if the actual hot water temperature T F of the bathtub is lower than the set hot water temperature Ts (T F <Ts), the heat exchanger is heated until the hot water temperature T F reaches the set hot water temperature Ts. The burner is ignited to perform the additional heating operation (step 7).
【００１０】そして、湯温ＴFが設定湯温Ｔsに達すると
(ステップ８)、追焚運転を停止し(ステップ９)、さら
に、循環ポンプを停止する(ステップ６)。When the hot water temperature T F reaches the set hot water temperature Ts
(Step 8), the additional heating operation is stopped (step 9), and the circulation pump is stopped (step 6).
【００１１】なお、ステップ５では、設定湯温Ｔsを追
焚運転を開始するか否かの基準においているが、この基
準を設定湯温Ｔsより低くすることもある。また、以下
の説明においては、追焚運転を開始する基準を設定湯温
Ｔsと表現するが、追焚運転を開始する基準を設定湯温
Ｔsよりも低くする場合も含むものとする。In step 5, the set hot water temperature Ts is used as a standard for determining whether or not the additional heating operation is started, but this standard may be set lower than the set hot water temperature Ts. In the following description, the reference for starting the additional heating operation is expressed as the set hot water temperature Ts, but the reference for starting the additional heating operation may be lower than the set hot water temperature Ts.
【００１２】[0012]
【発明が解決しようとする課題】このように、従来の自
動風呂装置では、入浴が検知され、かつ、浴槽の湯温Ｔ
Fが設定湯温Ｔsよりも低い場合(ＴF＜Ｔs)には、必ず追
焚運転が実行されるようになっている。As described above, in the conventional automatic bath device, the bathing is detected and the bath temperature T of the bathtub is detected.
When F is lower than the set hot water temperature Ts ( TF <Ts), the additional heating operation is always executed.
【００１３】しかしながら、上記のように、入浴時にＴ
F＜Ｔsならば必ず追い焚きが行われる場合には、次の問
題が生じる。However, as described above, the T
If F <Ts, the following problem occurs when reheating is always performed.
【００１４】たとえば、冬場においては、外気温が低い
ので、できるだけ早く体を暖めたいし、また、人が入浴
することによる湯温の低下も著しい。したがって、入浴
が検知され、かつ、湯温ＴFが設定湯温Ｔsより低い場合
には、直ちに追い焚きが行われれば、湯温の低下も小さ
く抑えられて、ぬるく感じることなく体が暖まれるので
都合がよい。For example, in winter, since the outside air temperature is low, it is desired to warm the body as soon as possible, and the bath temperature is significantly lowered due to a person taking a bath. Therefore, when bathing is detected and the hot water temperature TF is lower than the set hot water temperature Ts, if the reheating is immediately performed, the decrease in the hot water temperature is suppressed to a small level and the body is warmed without feeling lukewarm. So convenient.
【００１５】これに対して、夏場においては、外気温も
高いので冬場ほど早く体を暖めたいという要求もさほど
強くなく、また、人が入浴することによる湯温の低下も
僅かである。したがって、入浴が検知され、かつ、湯温
ＴFが設定湯温Ｔsより幾分低くても、その湯温ＴFのま
までぬるく感じることなく体を暖めることができる。On the other hand, in summer, the outside air temperature is high, so that there is not a strong demand for warming up the body as early as in winter, and the decrease in hot water temperature due to a person taking a bath is slight. Therefore, even if bathing is detected and the hot water temperature T F is somewhat lower than the set hot water temperature T s, it is possible to warm the body without feeling lukewarm with the hot water temperature T F.
【００１６】このため、入浴時に湯温ＴFが設定湯温Ｔs
よりも幾分低いからといって必要以上に頻繁に追い焚き
すると、入浴者はあつく感じ、かえって不快な思いを
し、その上、ガス燃焼量が増加して不経済となる。Therefore, when bathing, the hot water temperature T F is set to the set hot water temperature Ts.
If it is reheated more often than necessary even if it is somewhat lower than that, the bather feels hot and rather feels uncomfortable, and the amount of gas burned increases, which is uneconomical.
【００１７】本発明は、上記の問題点を解決するために
なされたもので、入浴時に浴槽の湯温が設定湯温よりも
低いときでも、従来のように必ず追焚運転を実行するの
ではなく、外気温の高低に応じて追焚運転の必要性の有
無を判断できるようにして、快適な入浴を損なうことな
く、無駄なガス燃焼を極力低減することを課題とする。The present invention has been made in order to solve the above-mentioned problems. Even when the hot water temperature in the bathtub is lower than the preset hot water temperature at the time of bathing, the conventional reheating operation is not always performed. In other words, it is an object to reduce wasteful gas combustion as much as possible without impairing comfortable bathing, by making it possible to determine whether or not the additional heating operation is necessary according to the level of the outside air temperature.
【００１８】[0018]
【課題を解決するための手段】本発明は、上記の課題を
解決するため、入浴時の所望の湯温、この湯温を保持す
る保温モード等を設定する設定手段と、浴槽への入浴の
有無を検知する入浴検知手段と、前記設定手段による保
温モードの設定に応じて浴槽中の湯水を前記所望の湯温
に保持する保温手段とを備えた自動風呂装置において、
次の構成をとる。In order to solve the above problems, the present invention provides a setting means for setting a desired hot water temperature at the time of bathing, a heat retention mode for holding the hot water temperature, and the like. In an automatic bath apparatus comprising a bathing detecting means for detecting the presence or absence, and a heat retaining means for retaining hot and cold water in a bath at the desired hot water temperature according to the setting of the heat retaining mode by the setting means,
It has the following configuration.
【００１９】すなわち、本発明では、保温手段は、入浴
検知手段からの入浴検知出力が無い場合には所定周期ご
とに浴槽の湯温を検知し、この浴槽の湯温が前記所望の
湯温よりも低い場合に前記所望の湯温に達するまで追焚
運転を行う第１追焚手段と、入浴検知手段からの入浴検
知出力に応答して第１追焚手段よりも優先的に浴槽の湯
温が前記所望の湯温に達するまで追焚運転を行う第２追
焚手段とからなる一方、外気温を直接的または間接的に
検出する外気温検出手段と、この外気温検出手段の検出
出力に基づき、外気温が予め設定された所定の基準温度
よりも高い場合には、前記第２追焚手段による追焚運転
をキャンセルする追焚運転キャンセル手段とを含んでい
る。That is, in the present invention, the warming means detects the hot water temperature of the bathtub every predetermined period when there is no bathing detection output from the hot water bathing detecting means, and the hot water temperature of the bathtub is higher than the desired hot water temperature. When the temperature is low, the hot water temperature of the bathtub is prioritized over the first hot water heating means in response to the hot water heating output from the hot water heating means until the desired hot water temperature is reached and the hot water bathing detection means. And a second reheating means for performing a reheating operation until the desired hot water temperature is reached, and an outside air temperature detecting means for directly or indirectly detecting the outside air temperature and a detection output of the outside air temperature detecting means. On the basis of the above, when the outside air temperature is higher than a predetermined reference temperature set in advance, the additional heating operation canceling means for canceling the additional heating operation by the second additional heating means is included.
【００２０】[0020]
【作用】上記構成において、保温手段の第１追焚手段
は、入浴検知手段からの入浴検知出力が無い場合に所定
周期ごとに浴槽の湯温を検知した後、この浴槽の湯温が
予め設定した所望の湯温よりも低いときに、この所望の
湯温に達するまで追焚運転を行う。つまり、入浴がない
ときには、浴槽の湯温が低下するたびに予め設定した所
望の湯温まで焚き上げられる。In the above structure, the first reheating means of the heat retaining means detects the hot water temperature of the bathtub every predetermined period when there is no bathing detection output from the hot water bathing detecting means, and then the hot water temperature of the bathtub is preset. When the temperature is lower than the desired hot water temperature, the additional heating operation is performed until the desired hot water temperature is reached. That is, when there is no bathing, the hot water is heated to a preset desired hot water temperature every time the hot water temperature in the bathtub decreases.
【００２１】一方、外気温検出手段は、外気温を検出
し、この検出出力を追焚運転キャンセル手段に与える。On the other hand, the outside air temperature detecting means detects the outside air temperature and supplies the detected output to the additional heating operation canceling means.
【００２２】追焚運転キャンセル手段は、例えば冬場の
ように、外気温が予め設定された所定の基準温度以下の
場合には、第２追焚手段の動作を何らキャンセルしな
い。したがって、第２追焚手段は、入浴検知手段からの
入浴検知出力に応答して第１追焚手段よりも優先的に浴
槽の湯温が所望の湯温に達するまで追焚運転を行う。つ
まり、入浴があれば、浴槽の湯温が予め設定した所望の
湯温まで焚き上げられる。The additional heating operation canceling means does not cancel the operation of the second additional heating means when the outside air temperature is equal to or lower than a preset reference temperature, such as in winter. Therefore, the second reheating means performs the reheating operation in response to the bathing detection output from the bathing detection means until the hot water temperature of the bathtub reaches the desired hot water temperature in preference to the first hot water heating means. In other words, if there is a bath, the hot water temperature of the bathtub can be raised to a preset desired hot water temperature.
【００２３】これに対して、例えば夏場のように、外気
温が予め設定された所定の基準温度よりも高い場合に
は、追焚運転キャンセル手段は、第２追焚手段による追
焚運転をキャンセルする。このため、入浴検知手段から
の入浴検知出力があっても、つまり入浴があっても、追
焚運転は行われない。On the other hand, when the outside air temperature is higher than a predetermined reference temperature set in advance, for example, in summer, the additional heating operation canceling means cancels the additional heating operation by the second additional heating means. To do. Therefore, even if there is a bathing detection output from the bathing detection means, that is, even if there is a bathing, the reheating operation is not performed.
【００２４】このように、本発明では、入浴があってそ
の湯温が設定湯温よりも低いときでも、外気温の高低に
応じて追焚運転の必要性を判断するので、快適な入浴を
損なうことなく、無駄なガス燃焼を極力低減することが
できる。As described above, according to the present invention, even if there is a bath and the hot water temperature is lower than the set hot water temperature, the necessity of the additional heating operation is determined according to the level of the outside air temperature, so that a comfortable bath is possible. It is possible to reduce wasteful gas combustion as much as possible without damaging it.
【００２５】[0025]
【実施例】図１は、本発明の実施例に係る自動風呂装置
の構成図である。1 is a block diagram of an automatic bath apparatus according to an embodiment of the present invention.
【００２６】この実施例の自動給湯風呂装置は、給湯回
路Ａ、追焚回路Ｂ、風呂落込回路Ｃ、および制御部Ｄを
主体に構成されている。The automatic hot water supply bath apparatus of this embodiment is mainly composed of a hot water supply circuit A, an additional heating circuit B, a bath drop circuit C, and a control section D.
【００２７】給湯回路Ａは、上水道からの入水を沸かし
て浴槽Ｅや図示しないカランなどに給湯するためのもの
であって、熱交換器２を備え、この熱交換器２の前後に
接続された入水路４と出湯路６との間がバイパス路８で
接続され、このバイパス路８の途中に電磁開閉式のバイ
パス弁１０が設けられている。The hot water supply circuit A is used to boil incoming water from the tap water to supply hot water to the bathtub E, a currant (not shown), etc., and is provided with a heat exchanger 2 and is connected before and after the heat exchanger 2. The water inlet 4 and the hot water outlet 6 are connected by a bypass 8, and an electromagnetic open-close type bypass valve 10 is provided in the middle of the bypass 8.
【００２８】さらに、給湯回路Ａは、その入水路４側
に、入水温度Ｔcを検出する温度センサ１２、および熱
交換器２への入水量Ｑcを検出する水量センサ１４が設
けられ、また、その出湯路６側に、熱交換器２からの湯
とバイパス路８からの水とが混合された後の湯温を検出
する温度センサ１６、および水量サーボ弁１８が設けら
れている。Further, the hot water supply circuit A is provided with a temperature sensor 12 for detecting an incoming water temperature Tc and a water amount sensor 14 for detecting an incoming water amount Qc into the heat exchanger 2 on the incoming water passage 4 side thereof. On the hot water discharge passage 6 side, a temperature sensor 16 for detecting the hot water temperature after the hot water from the heat exchanger 2 and the water from the bypass passage 8 are mixed, and a water amount servo valve 18 are provided.
【００２９】そして、上記の入水温度センサ１２が、特
許請求の範囲における外気温Ｔoutを検出する外気温検
出手段に対応している。すなわち、夏場のように外気温
Ｔoutが高い場合には、給湯回路Ａに入水路４を介して
入水する温度Ｔcも高く、逆に、冬場のように外気温Ｔo
utが低い場合には、給湯回路Ａに入水する温度Ｔcも低
いので、入水温度Ｔcを検出することは、間接的に外気
温Ｔoutを検出していることに相当する。The incoming water temperature sensor 12 corresponds to the outside air temperature detecting means for detecting the outside air temperature Tout in the claims. That is, when the outside air temperature Tout is high as in the summer, the temperature Tc of entering the hot water supply circuit A through the water inlet 4 is also high, and conversely, as in the winter, the outside air temperature To is high.
When ut is low, the temperature Tc of entering the hot water supply circuit A is also low, and thus detecting the incoming water temperature Tc corresponds to indirectly detecting the outside air temperature Tout.
【００３０】また、熱交換器２に対しては、これを加熱
するガスバーナ２０が配置されている。A gas burner 20 for heating the heat exchanger 2 is arranged.
【００３１】図２は、この給湯回路Ａにおける熱交換器
２およびガスバーナ２０の部分の詳細を示す構成図であ
り、図１に対応する部分には同一の符号を付す。FIG. 2 is a structural diagram showing the details of the heat exchanger 2 and the gas burner 20 in the hot water supply circuit A, and the portions corresponding to those in FIG.
【００３２】図２において、２は熱交換器、４は入水
路、６は出湯路、２０はガスバーナ、５０は缶体、５２
は燃焼ファン、５４は回転数センサ、５６は過熱防止装
置、５８は温度センサ、６０は点火プラグ、６２は炎検
出用のフレームロッド、６４は残火安全装置、６６はガ
ス配管、６８はガス比例弁である。In FIG. 2, 2 is a heat exchanger, 4 is a water inlet, 6 is a hot water outlet, 20 is a gas burner, 50 is a can, and 52 is a can.
Is a combustion fan, 54 is a rotation speed sensor, 56 is an overheat prevention device, 58 is a temperature sensor, 60 is a spark plug, 62 is a flame detection flame rod, 64 is an afterglow safety device, 66 is a gas pipe, and 68 is a gas. It is a proportional valve.
【００３３】上記のガスバーナ２０は、ハウジング７０
を有し、このハウジング７０は、ガス配管６６に接続さ
れたガス導入室７２と、このガス導入室７２の上部にお
いて３つに区画して設けられたガス分配室７４1〜７４3
とからなる。The gas burner 20 described above includes a housing 70.
The housing 70 has a gas introduction chamber 72 connected to the gas pipe 66, and gas distribution chambers 74 1 to 74 3 provided at the upper portion of the gas introduction chamber 72 in three sections.
Consists of
【００３４】そして、各ガス分配室７４1〜７４3ごと
に、ガス配管６６を経由してガス導入室７２内に導かれ
たガスを個別に各ガス分配室７４1〜７４3に供給するた
めのガス電磁弁７６1〜７６3が設けられており、さら
に、各ガス分配室７４1〜７４3の上方には燃焼管７８が
配置されている。[0034] Then, for each gas distribution chamber 72d 3, for supply to the gas introduction chamber 72 the gas distribution chamber and guided gas into individually 72d 3 via the gas pipe 66 gas and solenoid valves 76 1 to 76 3 are provided, further, the above each gas distribution chamber 74 to 72d 3 are arranged combustion tube 78.
【００３５】特に、本例では、３つのガス分配室７４1
〜７４3の内、その中央と右側のガス分配室７４1、７４
2は同じ内容積を有し、また、左側のガス分配室７４
3は、これらガス分配室７４1、７４2よりも内容積が大
きく設定されている。したがって、中央と右側のガス分
配室７４1、７４2の上方には共に３つの燃焼管７８が、
また、左側のガス分配室７４3には６つの燃焼管７８
が、それぞれ配置された構成となっている。Particularly, in this example, the three gas distribution chambers 74 1
~ 74 3 of the gas distribution chambers 74 1 and 74 at the center and right side
2 has the same internal volume, and the left gas distribution chamber 74
The internal volume of 3 is set to be larger than those of the gas distribution chambers 74 1 and 74 2 . Therefore, three combustion tubes 78 are provided above the center and right side gas distribution chambers 74 1 and 74 2 .
In addition, there are six combustion tubes 78 in the left gas distribution chamber 74 3.
However, they are arranged respectively.
【００３６】そして、ガス燃焼の停止時は、全てのガス
電磁弁７６1〜７６3が閉状態となる一方、ガス燃焼中に
は、中央のガス分配室７４1に対して設けられたガス電
磁弁７６1は常に開状態に維持され、また、その両脇の
ガス分配室７４2、７４3に対して設けられたガス電磁弁
７６2、７６3は、要求される燃焼能力に応じて適宜開閉
されるようになっている。[0036] Then, when the stop gas combustion, whereas all of the gas solenoid valve 76 1-76 3 in the closed state, the gas combustion, the gas provided for the center of the gas distribution chamber 74 first solenoid the valve 76 1 is always kept open, also the gas distribution chamber 74 2 on both sides, 74 gas solenoid valve 76 2 which is provided for 3, 76 3, as appropriate depending on the required combustion capability It is designed to be opened and closed.
【００３７】たとえば、弱燃焼の場合には、中央のガス
分配室７４1に対するガス電磁弁７６1は開、残りガス電
磁弁７６2、７６3は共に閉となる。中燃焼の場合には、
中央のガス分配室７４1に対するガス電磁弁７６1は開、
残りのガス電磁弁７６2、７６3の一方が開で他方は閉と
なる。強燃焼の場合には、全てのガス電磁弁７６1〜７
６3が開となる。[0037] For example, in the case of the weak combustion gas solenoid valve 76 1 for the central gas distribution chamber 74 1 it is opened, the remaining gas solenoid valve 76 2, 76 3 are both closed. In case of medium combustion,
Gas solenoid valve 76 1 for the central gas distribution chamber 74 1 is opened,
The other is in the closed one of the remaining gas solenoid valve 76 2, 76 3 is in the open. In the case of intense combustion, all the gas solenoid valve 76 1-7
6 3 opens.
【００３８】いずれにしても、ガス燃焼を行う際には、
中央のガス分配室７４1のガス電磁弁７６1が最初に開か
れて燃焼管７８に着火され、かつ、燃焼能力の強弱の切
り換えがあっても、このガス電磁弁７６1は常に開状態
が維持され、ガス電磁弁７６1に対する燃焼管７８の部
分では常にガスが燃焼されるから、その両脇のガス分配
室７４2、７４3にあるガス電磁弁７６2、７６3が開いた
ときには必ず着火し、ガス不燃焼が起こる危険性が極め
て少ない。In any case, when performing gas combustion,
Even if the gas solenoid valve 76 1 of the central gas distribution chamber 74 1 is first opened to ignite the combustion pipe 78 and the combustion capacity is switched between strong and weak, this gas solenoid valve 76 1 is always open. Since the gas is always maintained and the gas is always burned in the portion of the combustion pipe 78 with respect to the gas solenoid valve 76 1 , the gas solenoid valves 76 2 and 76 3 in the gas distribution chambers 74 2 and 74 3 on both sides thereof are always opened. The risk of ignition and non-combustion of gas is extremely low.
【００３９】図１に戻って、追焚回路Ｂは、浴槽Ｅの湯
水を循環しつつ追い焚きするもので、浴槽Ｅに両端が接
続され循環水路２２の途中に、追い焚き用の熱交換器２
４、強制循環用の循環ポンプ２６が設けられ、循環ポン
プ２６の上流側に浴槽の水位を検出する水位センサ２８
が、下流側の熱交換器２８に至る途中位置には、浴槽Ｅ
の湯温ＴFを検出する温度センサ３０がそれぞれ配置さ
れている。Returning to FIG. 1, the reheating circuit B reheats the hot water while circulating the hot and cold water in the bathtub E. Both ends of the reheating circuit B are connected to the bathtub E, and a heat exchanger for reheating is provided in the middle of the circulating water passage 22. Two
4. A circulation pump 26 for forced circulation is provided, and a water level sensor 28 for detecting the water level in the bathtub is provided upstream of the circulation pump 26.
However, at a position midway to the heat exchanger 28 on the downstream side, the bathtub E
Each temperature sensor 30 for detecting the hot water temperature T F of the hot water is arranged.
【００４０】また、追い焚き用の熱交換器２４に対して
は、これを加熱するガスバーナ３２が設けられている。Further, a gas burner 32 for heating the reheating heat exchanger 24 is provided.
【００４１】そして、上記の水位センサ２８が、特許請
求の範囲における浴槽Ｅへの入浴の有無を検知する入浴
検知手段に対応している。The water level sensor 28 corresponds to a bathing detecting means for detecting the presence or absence of bathing in the bathtub E in the claims.
【００４２】さらに、風呂落込回路Ｃは、上記の給湯回
路Ａと追焚回路Ｂとの間を連結して湯水を浴槽Ｅに落と
し込むためのもので、その一方端が給湯回路１の出湯路
６の水量サーボ弁１８よりも下流側に、他方端が循環ポ
ンプ２６の上流側にそれぞれ接続されている。Further, the bath drop circuit C is for connecting the hot water supply circuit A and the reheating circuit B to drop hot water into the bathtub E, and one end of the bath drop circuit 6 of the hot water supply circuit 1 Is connected to the downstream side of the water amount servo valve 18 and the other end is connected to the upstream side of the circulation pump 26.
【００４３】そして、風呂落込回路の途中位置には、バ
キュームブレイカ３４、電磁開閉式の落込弁３６、およ
び逆止弁３８が順次設けられている。A vacuum breaker 34, an electromagnetic opening / closing type drop valve 36, and a check valve 38 are sequentially provided at an intermediate position of the bath drop circuit.
【００４４】リモコン装置Ｆは、制御部Ｄに対して、浴
槽Ｅへの湯張り、保温、追い焚き等の各種のモードや、
給湯時や入浴時の所望の湯温Ｔsなどを設定入力するた
めのもので、特許請求の範囲における設定手段に対応し
ている。The remote control device F instructs the control section D to perform various modes such as filling the bathtub E with hot water, keeping warm, and reheating,
It is for setting and inputting a desired hot water temperature Ts at the time of hot water supply or bathing, and corresponds to the setting means in the claims.
【００４５】制御部Ｄは、リモコン装置Ｆからの入力デ
ータ、および給湯回路Ａ、追焚回路Ｂおよび風呂落込回
路Ｃに設けられた温度センサ１２、１６、３０、水量セ
ンサ１２、水位センサ２８からの検出信号に基づいて、
各弁１０，１８，３６や循環ポンプ２６の各可動部の動
作を制御するとともに、各ガスバーナ２０、３２の燃焼
制御を行うものである。The control section D receives the input data from the remote control device F and the temperature sensors 12, 16, 30 provided in the hot water supply circuit A, the reheating circuit B and the bath drop circuit C, the water amount sensor 12, and the water level sensor 28. Based on the detection signal of
The operation of each movable part of each valve 10, 18, 36 and the circulation pump 26 is controlled, and the combustion control of each gas burner 20, 32 is performed.
【００４６】そして、本例では、制御部Ｄは、保温手段
４０と追焚運転キャンセル手段４４を含む。Further, in this example, the control section D includes the heat retaining means 40 and the additional heating operation canceling means 44.
【００４７】保温手段４０は、リモコン装置Ｆによる保
温モードの設定に応じて浴槽Ｅの湯温ＴFを設定湯温Ｔs
に保持するものであって、第１追焚手段４１と第２追焚
手段４２とからなる。The warming means 40 sets the hot water temperature T F of the bathtub E according to the setting of the warming mode by the remote controller F, and sets the hot water temperature Ts.
The first additional heating means 41 and the second additional heating means 42.
【００４８】第１追焚手段４１は、水位センサ２８によ
る浴槽Ｅの水位上昇を示す検出出力が無い場合には所定
周期ごとに浴槽Ｅの湯温を検知した後、浴槽Ｅの湯温が
設定湯温Ｔsよりも低い場合に、設定湯温Ｔsに達するま
で追焚運転を行うものである。The first reheating means 41 detects the hot water temperature of the bath tub E at predetermined intervals when the water level sensor 28 does not detect the rise in the water level of the bath tub E, and then sets the hot water temperature of the bath tub E. When the temperature is lower than the hot water temperature Ts, the additional heating operation is performed until the set hot water temperature Ts is reached.
【００４９】また、第２追焚手段４２は、水位センサ２
８による浴槽Ｅの水位上昇を示す検出出力に応答して第
１追焚手段４１よりも優先的に浴槽Ｅの湯温が設定湯温
Ｔsに達するまで追焚運転を行うものである。Further, the second reheating means 42 is the water level sensor 2
In response to the detection output indicating the rise in the water level of the bathtub E by No. 8, the reheating operation is performed prior to the first reheating means 41 until the hot water temperature of the bathtub E reaches the set hot water temperature Ts.
【００５０】一方、追焚運転キャンセル手段４４は、こ
の入水温度センサ１２の検出出力に基づき、入水温度Ｔ
cが予め設定された所定の基準温度Ｔshよりも高い場合
(Ｔc>Tsh)には、第２追焚手段４２による追焚運転をキ
ャンセルするものである。On the other hand, the additional heating operation canceling means 44, based on the detection output of the incoming water temperature sensor 12, receives the incoming water temperature T.
When c is higher than a preset reference temperature Tsh
When (Tc> Tsh), the additional heating operation by the second additional heating means 42 is canceled.
【００５１】上記構成の自動風呂装置の動作の内、ここ
では主に保温モード時の動作について、図３に示すフロ
ーチャートおよび図４に示すタイミングチャートを参照
して説明する。Among the operations of the automatic bath apparatus having the above-mentioned configuration, the operation mainly in the heat retention mode will be described here with reference to the flowchart shown in FIG. 3 and the timing chart shown in FIG.
【００５２】いま、保温モードが設定された場合には
(ステップ１)、制御部Ｄの保温手段４０は、追焚回路Ｂ
の水位センサ２８の検出出力に基づいて、浴槽Ｅの水位
上昇があるか否かをみて入浴の有無を判断する(ステッ
プ２)。Now, when the heat retention mode is set
(Step 1), the heat retaining means 40 of the control unit D is the reheating circuit B
Based on the detection output of the water level sensor 28, it is determined whether or not the water level in the bathtub E has risen to determine whether or not to take a bath (step 2).
【００５３】ステップ２で、浴槽Ｅへの入浴無しと判断
された場合には、第１追焚手段４１は、所定周期Ｍ1(本
例では３０分)が経過したか否かを判断し(ステップ
７)、所定周期Ｍ1が経過するたびに追焚運転を開始する
(ステップ４)。When it is determined in step 2 that there is no bathing in the bathtub E, the first reheating means 41 determines whether or not a predetermined period M 1 (30 minutes in this example) has elapsed ( Step 7), the additional heating operation is started every time the predetermined period M 1 elapses.
(Step 4).
【００５４】すなわち、この追焚運転では、追焚回路Ｂ
の循環ポンプ２６を起動して浴槽Ｅの湯水を循環すると
ともに、ガスバーナ３２を着火する。そして、温度セン
サ３０の検出出力に基づいて浴槽の湯温ＴFを検出し、
この湯温ＴFをリモコン装置Ｆで予め設定した設定湯温
Ｔsと比較する(ステップ５)。That is, in this additional heating operation, the additional heating circuit B
The circulation pump 26 is activated to circulate the hot and cold water in the bathtub E, and the gas burner 32 is ignited. Then, the hot water temperature TF of the bathtub is detected based on the detection output of the temperature sensor 30,
This hot water temperature T F is compared with a preset hot water temperature Ts preset by the remote controller F (step 5).
【００５５】そして、温度センサ３０で検出された浴槽
Ｅの湯温ＴFが設定湯温Ｔsよりも低ければ(ＴF＜Ｔs)、
湯温ＴFが設定湯温Ｔsに達するまで追焚運転を継続す
る。If the hot water temperature T F of the bathtub E detected by the temperature sensor 30 is lower than the set hot water temperature Ts (T F <Ts),
The reheating operation is continued until the hot water temperature TF reaches the set hot water temperature Ts.
【００５６】浴槽Ｅの湯水ＴFが設定湯温Ｔsに達する
と、追焚運転を停止する(ステップ６)すなわち、ガスバ
ーナ３２の燃焼を停止するとともに、循環ポンプ２６に
よる浴槽Ｅの湯水の循環を停止する。When the hot water T F of the bathtub E reaches the set hot water temperature Ts, the additional heating operation is stopped (step 6), that is, the combustion of the gas burner 32 is stopped, and the hot water of the bathtub E is circulated by the circulation pump 26. Stop.
【００５７】これにより、図４の実線で示すように、浴
槽Ｅへの入浴がないときには、所定周期Ｍ1が経過する
たびに、浴槽Ｅの湯温ＴFが設定湯温Ｔsに達するまで焚
き上げられて保温が実行される。As a result, when the bathtub E is not bathed, as shown by the solid line in FIG. 4, the hot water temperature TF of the bathtub E is heated until the set hot water temperature Ts is reached every time the predetermined period M 1 elapses. It is raised and heat retention is executed.
【００５８】一方、追焚運転キャンセル手段４４は、給
湯回路Ａの入水温度センサ１２の検出出力を取り込み、
入水温度Ｔcと予め設定された基準温度Ｔsh(本例では２
０℃)とを比較する(ステップ３)。On the other hand, the additional heating operation canceling means 44 fetches the detection output of the incoming water temperature sensor 12 of the hot water supply circuit A,
Inlet temperature Tc and preset reference temperature Tsh (2 in this example)
0 ° C.) (step 3).
【００５９】ここで、例えば、冬場のように、外気温Ｔ
outが低い場合には、給湯回路Ａに入水する温度Ｔcも低
い。そのため、入水温度Ｔcが予め設定された所定の基
準温度Ｔsh以下の場合(Ｔc≦Ｔsh)には、追焚運転キャ
ンセル手段４４は、第２追焚手段４２の動作を何らキャ
ンセルしない。Here, for example, as in winter, the outside temperature T
When out is low, the temperature Tc of entering the hot water supply circuit A is also low. Therefore, when the incoming water temperature Tc is equal to or lower than the preset reference temperature Tsh (Tc ≦ Tsh), the additional heating operation canceling unit 44 does not cancel the operation of the second additional heating unit 42.
【００６０】したがって、ステップ２で浴槽Ｅへの入浴
有りと判断され、かつ、ステップ３で入水温度Ｔcが基
準温度Ｔsh以下と判断された場合には、第２追焚手段４
２は、第１追焚手段４１の温度制御よりも優先して浴槽
Ｅの湯温ＴFが所望の湯温Ｔsに達するまで追焚運転を行
う(ステップ４〜ステップ６)。Therefore, when it is determined in step 2 that the bathtub E is bathed, and in step 3 that the water temperature Tc is lower than the reference temperature Tsh, the second reheating means 4 is added.
2 preferentially controls the temperature of the first reheating means 41 and performs the reheating operation until the hot water temperature T F of the bathtub E reaches the desired hot water temperature Ts (steps 4 to 6).
【００６１】これにより、図４の破線で示すように、浴
槽Ｅへの入浴があり、かつ、Ｔc≦Ｔshであれば、所定
周期Ｍ1が経過していなくても、その途中で直ちに浴槽
の湯温ＴFが設定湯温Ｔsに達するまで焚き上げられる
(図４の時刻taから時刻tbの期間)。ゆえに、冬場などで
は、湯温ＴFの低下が抑えられて、すぐに体を暖めるこ
とができる。As a result, as shown by the broken line in FIG. 4, if the bath E has been bathed and Tc ≦ Tsh, even if the predetermined period M 1 has not elapsed, the bath immediately starts It is heated until the hot water temperature TF reaches the set hot water temperature Ts.
(The period from time ta to time tb in FIG. 4). Therefore, in winter or the like, the decrease in the hot water temperature T F is suppressed and the body can be warmed immediately.
【００６２】それに対して、例えば、夏場のように、外
気温Ｔoutが高い場合には、給湯回路Ａに入水する温度
Ｔcも高い。そのため、入水温度Ｔcが予め設定された所
定の基準温度Ｔshを越えている場合(Ｔc＞Ｔsh)には、
追焚運転キャンセル手段４４は、第２追焚手段４２によ
る追焚運転をキャンセルする。On the other hand, when the outside air temperature Tout is high, such as in summer, the temperature Tc of entering the hot water supply circuit A is also high. Therefore, when the incoming water temperature Tc exceeds the preset reference temperature Tsh (Tc> Tsh),
The additional heating operation canceling unit 44 cancels the additional heating operation by the second additional heating unit 42.
【００６３】したがって、この場合には、ステップ２に
おいて、浴槽Ｅへの入浴有りと判断されても、追焚運転
は行われずステップ８に移行する。Therefore, in this case, even if it is judged in the step 2 that the bathtub E is bathed, the reheating operation is not performed and the process shifts to the step 8.
【００６４】そして、ステップ８に移行することで、浴
槽Ｅへの入浴があり、入水温度Ｔcが基準温度Ｔshを越
えている限り第１追焚手段４１もキャンセルされ、追焚
運転は実行されない(ステップ２、ステップ３、ステッ
プ８の繰り返えし)。By shifting to step 8, the first reheating means 41 is canceled and the reheating operation is not executed as long as there is a bath in the bathtub E and the water temperature Tc exceeds the reference temperature Tsh. Repeat steps 2, 3, and 8).
【００６５】このように、入浴時には湯温ＴFが設定湯
温Ｔsよりも幾分低いために追い焚きが行われなくて
も、入浴していないときには、追焚運転が行われて保温
されているから、夏場などでは、十分に体を暖めること
ができ、何ら支障はない。むしろ、従来のように入浴時
には必ず追焚運転を実行する場合に比べてあつくて不快
な思いをすることをなくし、無駄なガス燃焼をなくすこ
とができる。As described above, since the hot water temperature T F is somewhat lower than the set hot water temperature Ts at the time of bathing, even if the reheating is not performed, the reheating operation is performed and the temperature is maintained when the bath is not bathing. Therefore, you can warm your body in the summer and there is no problem. On the contrary, it is possible to eliminate the feeling of being hot and uncomfortable as compared to the case where the additional heating operation is always performed at the time of bathing as in the conventional case, and it is possible to eliminate wasteful gas combustion.
【００６６】そして、保温モードの設定開始から所定期
間Ｍ0(本例では４時間)が経過した場合には(ステップ
８)、この保温モードが終了となる(ステップ９)。これ
により、保温モードを設定したことを忘れたため、入浴
する意志がないにもかかわらず、追い焚きが長時間にわ
たって徒に繰り返さるのが回避される。Then, when a predetermined period M 0 (4 hours in this example) has elapsed from the start of setting the heat retention mode (step 8), the heat retention mode ends (step 9). As a result, it is possible to avoid repetitive reheating for a long period of time despite forgetting to set the heat retention mode and having no intention of taking a bath.
【００６７】なお、上記の実施例においては、入水温度
Ｔcに基づいて入浴時の追焚運転の必要性の有無を判断
しているが、凍結防止用として外気温度Ｔoutを検出す
るために設けられている温度センサを利用し、この温度
センサの検出出力に基づいて追焚運転の必要性の有無を
判断するようにすることも可能である。In the above-described embodiment, whether or not the additional heating operation is required at the time of bathing is judged based on the water temperature Tc, but it is provided to detect the outside air temperature Tout for the purpose of preventing freezing. It is also possible to use a temperature sensor that is installed and determine whether or not the additional heating operation is necessary based on the detection output of this temperature sensor.
【００６８】また、この実施例では、保温モードの動作
についてのみ説明したが、たとえば、入浴時に湯温ＴF
が低いと感じて追焚運転の必要性を感じた場合には、リ
モコン装置Ｆによって追焚モードを設定すれば、保温モ
ードが解除され、循環ポンプ２６による浴槽Ｅの湯水の
循環とガスバーナ３２による加熱とが行われて追焚運転
が強制的に行われる。Further, in this embodiment, only the operation in the heat retention mode has been described, but for example, the bath temperature T F at the time of bathing
If the user feels that the heating is low and the necessity of the additional heating operation is felt, the warming mode is released by setting the additional heating mode by the remote control device F, the hot water circulation of the bathtub E by the circulation pump 26 and the gas burner 32 Heating is performed and the additional heating operation is forced.
【００６９】なお、図３のフローチャートに示す本例の
追焚運転では、追焚回路Ｂの循環ポンプ２６を起動して
浴槽Ｅの湯水を循環するとともに、ガスバーナ３２を着
火した後、温度センサ３０で浴槽の湯温ＴFを検出する
ようにしているが、図５に示すフローチャートのよう
に、追焚回路Ｂの循環ポンプ２６を起動して浴槽Ｅの湯
水を循環してから、先に温度センサ３０によって浴槽の
湯温ＴFを検出し、浴槽の湯温ＴFが設定湯温Ｔsよりも
低い場合にのみガスバーナ３２を着火して追い焚きを行
うことも可能である。In the additional heating operation of the present example shown in the flow chart of FIG. 3, the circulation pump 26 of the additional heating circuit B is activated to circulate the hot and cold water of the bathtub E, the gas burner 32 is ignited, and then the temperature sensor 30 is activated. Although the hot water temperature T F of the bathtub is detected by the above, as shown in the flowchart of FIG. 5, the circulating pump 26 of the additional heating circuit B is activated to circulate the hot water of the bathtub E, and then the temperature It is also possible to detect the hot water temperature T F of the bathtub by the sensor 30 and ignite the gas burner 32 to perform reheating only when the hot water temperature T F of the bathtub is lower than the set hot water temperature Ts.
【００７０】[0070]
【発明の効果】本発明によれば、次の効果を奏する。According to the present invention, the following effects can be obtained.
【００７１】 請求項１記載の発明では、入浴時に浴
槽の湯温が設定湯温よりも低いときでも、従来のように
必ず追焚運転を実行するのではなく、外気温の高低に応
じて追焚運転の必要性の有無を判断するので、快適な入
浴を損なうことなく、無駄なガス燃焼を極力低減するこ
とができる。According to the first aspect of the invention, even when the hot water temperature in the bathtub is lower than the set hot water temperature at the time of bathing, the additional heating operation is not always executed as in the conventional case, but the additional hot water operation is performed according to the level of the outside air temperature. Since it is determined whether or not the burning operation is necessary, useless gas combustion can be reduced as much as possible without impairing comfortable bathing.
【００７２】 請求項２記載の発明では、外気温を入
水温度センサで間接的に検出する場合には、給湯回路の
燃焼制御のための入水温度の検出と兼用できるので、外
気温を直接に検出するセンサを新たに追加しなくても済
むという利点がある。According to the second aspect of the present invention, when the outside air temperature is indirectly detected by the incoming water temperature sensor, it can be used also as the detection of the incoming water temperature for the combustion control of the hot water supply circuit. Therefore, the outside air temperature is directly detected. There is an advantage that it is not necessary to newly add a sensor to be used.
【００７３】 請求項３記載の発明では、凍結防止用
として設けられている温度センサで直接に外気温を検出
するので、この場合にも、外気温を直接に検出するセン
サを新たに追加しなくても済むという利点がある。According to the third aspect of the present invention, the temperature sensor provided for freezing prevention directly detects the outside air temperature. Therefore, in this case as well, a sensor for directly detecting the outside air temperature is not added. There is an advantage that it can be done.
【図１】本発明の実施例に係る自動風呂装置の構成図で
ある。FIG. 1 is a configuration diagram of an automatic bath device according to an embodiment of the present invention.
【図２】本発明の自動風呂装置の給湯回路のガスバーナ
および熱交換器部分の構成図である。FIG. 2 is a configuration diagram of a gas burner and a heat exchanger portion of a hot water supply circuit of the automatic bath apparatus of the present invention.
【図３】本発明の自動風呂装置の保温モードの動作説明
に供するフローチャートである。FIG. 3 is a flow chart for explaining the operation of the heat retention mode of the automatic bath apparatus of the present invention.
【図４】本発明の自動風呂装置の保温モード下での浴槽
の湯温の経時変化を示すタイムチャートである。FIG. 4 is a time chart showing changes with time in hot water temperature of a bathtub in a heat retention mode of the automatic bath apparatus of the present invention.
【図５】本発明の自動風呂装置の保温モードの他の制御
方法に基づく動作説明に供するフローチャートである。FIG. 5 is a flowchart for explaining an operation based on another control method of the heat retention mode of the automatic bath apparatus of the present invention.
【図６】従来の自動風呂装置の保温モードの動作説明に
供するフローチャートである。FIG. 6 is a flowchart for explaining the operation of the heat retention mode of the conventional automatic bath device.
Ａ…給湯回路、Ｂ…追焚回路、Ｃ…風呂落込回路、Ｄ…
制御部、Ｅ…浴槽、Ｆ…リモコン装置(設定手段)、１２
…入水温度センサ(外気温検出手段)、２８…水位センサ
(入浴検知手段)、４０…保温手段、４１…第１追焚手
段、４２…第２追焚手段、４４…追焚運転キャンセル手
段。A ... Hot water supply circuit, B ... Additional heating circuit, C ... Bath drop circuit, D ...
Control unit, E ... Bathtub, F ... Remote control device (setting means), 12
… Incoming water temperature sensor (outside air temperature detection means), 28… Water level sensor
(Bathing detecting means), 40 ... Insulating means, 41 ... First reheating means, 42 ... Second reheating means, 44 ... Reheating operation canceling means.
Claims (3)
る保温モード等を設定する設定手段と、浴槽への入浴の
有無を検知する入浴検知手段と、前記設定手段による保
温モードの設定に応じて浴槽中の湯水を前記所望の湯温
に保持する保温手段とを備えた自動風呂装置において、 前記保温手段は、入浴検知手段からの入浴検知出力が無
い場合には所定周期ごとに浴槽の湯温を検知し、この浴
槽の湯温が前記所望の湯温よりも低い場合に前記所望の
湯温に達するまで追焚運転を行う第１追焚手段と、入浴
検知手段からの入浴検知出力に応答して第１追焚手段よ
りも優先的に浴槽の湯温が前記所望の湯温に達するまで
追焚運転を行う第２追焚手段とからなる一方、 外気温を直接的または間接的に検出する外気温検出手段
と、 この外気温検出手段の検出出力に基づき、外気温が予め
設定された所定の基準温度よりも高い場合には、前記第
２追焚手段による追焚運転をキャンセルする追焚運転キ
ャンセル手段と、 を含むことを特徴とする自動風呂装置。1. A setting means for setting a desired hot water temperature during bathing, a warming mode for holding the hot water temperature, a bathing detecting means for detecting whether or not a bath is bathed, and a warming mode by the setting means. In an automatic bath apparatus having a warming means for holding the hot and cold water in the bathtub at the desired hot water temperature according to the setting, the warming means, in case there is no bathing detection output from the bathing detection means, in every predetermined cycle. A first reheating means for detecting the hot water temperature in the bathtub and performing additional heating operation until reaching the desired hot water temperature when the hot water temperature in the bathtub is lower than the desired hot water temperature, and bathing from the bathing detection means In response to the detection output, the second reheating means performs the reheating operation until the hot water temperature of the bathtub reaches the desired hot water temperature preferentially over the first reheating means, while directly or directly controlling the outside air temperature. The outside air temperature detection means that indirectly detects, and the outside air temperature detection means Based on the detection output, when the outside air temperature is higher than a preset predetermined reference temperature, an additional heating operation canceling means for canceling the additional heating operation by the second additional heating means is included. Automatic bath equipment.
に向けて給湯を行う給湯回路への入水温度を検出する入
水温度センサからなるものである、請求項１記載の自動
風呂装置。2. The automatic bath apparatus according to claim 1, wherein the outside air temperature detecting means comprises an inflow water temperature sensor for detecting an inflow water temperature into a hot water supply circuit for supplying hot water to a bathtub, a curran or the like.
に外気温を検出する温度センサからなるものである、請
求項１記載の自動風呂装置。3. The automatic bath apparatus according to claim 1, wherein the outside air temperature detecting means comprises a temperature sensor for detecting outside air temperature for preventing freezing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18234294A JP3123355B2 (en) | 1994-08-03 | 1994-08-03 | Automatic bath equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18234294A JP3123355B2 (en) | 1994-08-03 | 1994-08-03 | Automatic bath equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0849915A true JPH0849915A (en) | 1996-02-20 |
| JP3123355B2 JP3123355B2 (en) | 2001-01-09 |
Family
ID=16116637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18234294A Expired - Fee Related JP3123355B2 (en) | 1994-08-03 | 1994-08-03 | Automatic bath equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3123355B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011237060A (en) * | 2010-05-07 | 2011-11-24 | Corona Corp | Bath device |
| JP2012207848A (en) * | 2011-03-29 | 2012-10-25 | Osaka Gas Co Ltd | Hot water supply device |
-
1994
- 1994-08-03 JP JP18234294A patent/JP3123355B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011237060A (en) * | 2010-05-07 | 2011-11-24 | Corona Corp | Bath device |
| JP2012207848A (en) * | 2011-03-29 | 2012-10-25 | Osaka Gas Co Ltd | Hot water supply device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3123355B2 (en) | 2001-01-09 |
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| LAPS | Cancellation because of no payment of annual fees |