JP4313601B2 - Ice machine - Google Patents

Ice machine Download PDF

Info

Publication number
JP4313601B2
JP4313601B2 JP2003115525A JP2003115525A JP4313601B2 JP 4313601 B2 JP4313601 B2 JP 4313601B2 JP 2003115525 A JP2003115525 A JP 2003115525A JP 2003115525 A JP2003115525 A JP 2003115525A JP 4313601 B2 JP4313601 B2 JP 4313601B2
Authority
JP
Japan
Prior art keywords
water
ice making
water level
supply valve
water supply
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 - Fee Related
Application number
JP2003115525A
Other languages
Japanese (ja)
Other versions
JP2004324897A (en
Inventor
洋 越
輝彦 大谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoshizaki Electric Co Ltd
Original Assignee
Hoshizaki Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoshizaki Electric Co Ltd filed Critical Hoshizaki Electric Co Ltd
Priority to JP2003115525A priority Critical patent/JP4313601B2/en
Publication of JP2004324897A publication Critical patent/JP2004324897A/en
Application granted granted Critical
Publication of JP4313601B2 publication Critical patent/JP4313601B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25CPRODUCING, WORKING OR HANDLING ICE
    • F25C2700/00Sensing or detecting of parameters; Sensors therefor
    • F25C2700/04Level of water

Landscapes

  • Production, Working, Storing, Or Distribution Of Ice (AREA)

Description

【0001】
【発明の属する技術分野】
この発明は、製氷機に関する。
【0002】
【従来の技術】
従来より、製氷水タンクを備えた製氷機では、製氷水タンクに取り付けられたフロートスイッチが下水位を検知すると給水バルブを開いて製氷水タンクへ給水を行うと共に上水位を検知すると給水バルブを閉じて製氷水タンクへの給水を停止するなど、フロートスイッチの検知状態に対応して給水バルブを開閉することにより製氷水タンク内の水量制御を行っている。ここで、例えば特許文献1には、何らかの原因でフロートスイッチが上水位及び下水位を検知できなくなると、故障が生じたと判断して警報を発するオーガ式製氷機が開示されている。
【0003】
【特許文献1】
特開平9−269170号公報
【0004】
【発明が解決しようとする課題】
しかしながら、特許文献1に記載の製氷機では警報を発するのみであり、作業者が点検及び修理をしなければ、フロートスイッチの動作不良を復帰させることはできなかった。
この発明はこのような問題点を解消するためになされたもので、水位検知手段の動作不良を自動的に復帰させることができる製氷機を提供することを目的とする。
【0005】
【課題を解決するための手段】
この発明に係る製氷機は、水位検知手段が製氷水タンクの下水位を検知すると給水バルブを開いて製氷水タンクへ給水を行うと共に上水位を検知すると給水バルブを閉じて製氷水タンクへの給水を停止する製氷機において、給水バルブを開いてから所定時間経過しても水位検知手段により上水位が検知されないときに、水位検知手段の動作不良を解消するために、製氷運転を停止すると共に給水バルブの開閉を繰り返す制御部を備えるものである。
また、製氷水タンク内の水を排出するための排水バルブを備え、設定時間に亙って製氷運転を停止すると共に給水バルブの開閉を繰り返してもまだ水位検知手段により上水位が検知されない場合には、制御部は排水バルブを開いて製氷水タンク内の水を排出した後に再び給水バルブを開くことが好ましい。
【0006】
【発明の実施の形態】
以下、この発明の実施の形態を添付図面に基づいて説明する。
図1にオーガ式製氷機に適用された、この発明の実施の形態に係る製氷機の全体構造を示す。このオーガ式製氷機は、冷凍ケーシング1を有しており、その外周面に蒸発パイプ2が巻装されると共に、冷凍ケーシング1の内部には螺旋刃を有する削氷用のオーガ3が回転自在に支持され、このオーガ3の下端にオーガ3を回転するためのギヤードモータ4が連結されている。なお、冷凍ケーシング1の蒸発パイプ2は、蒸発器として、圧縮機5、凝縮器、ドライヤ及び膨張弁と共に冷凍回路6を構成している。
【0007】
また、製氷水を貯留する製氷水タンク7は、給水管8により冷凍ケーシング1の下部に連結されている。この製氷水タンク7の上部には、給水バルブ9が取り付けられている。また、製氷水タンク7には水位検知手段としてフロートスイッチ10が取り付けられると共にオーバーフロー管11が接続されている。
【0008】
さらに、冷凍ケーシング1の下部には排水管12が接続されており、排水管12の途中に排水バルブ13が取り付けられている。ギヤードモータ4、冷凍回路6の圧縮機5、給水バルブ9、フロートスイッチ10及び排水バルブ13が、制御部14に電気的に接続されている。
【0009】
次に、この実施の形態に係るオーガ式製氷機の動作について説明する。まず、オーガ式製氷機の電源が投入されると、給水バルブ9が開かれて製氷水タンク7への給水が行われると共に冷凍回路6が駆動され、さらにギヤードモータ4が駆動されて製氷運転を開始する。製氷水タンク7へ給水された製氷水は給水管8を介して冷凍ケーシング1内に供給されると共に、蒸発パイプ2により冷却され、これにより冷凍ケーシング1の内周面に氷が成長する。この氷は、オーガ3の回転によって掻き取られ、フレーク状の氷となって螺旋作用により上方へ搬送され、冷凍ケーシングの1の上方から排出される。
【0010】
ここで、製氷運転により製氷水が消費されて、製氷水タンク7内の水位が図2(a)に示されるような水位にまで下がると、フロートスイッチ10が下水位を検知すると共にこのフロートスイッチ10からの信号を受けて制御部14は製氷水タンク7内の水位が下水位であることを認識し、給水バルブ9を開いて製氷水タンク7への給水を行う。その結果、製氷水タンク7内の水位が徐々に上昇していく。そして、製氷水タンク内の水位が図2(b)に示されるような水位に到達すると、フロートスイッチ10が上水位を検知すると共にこのフロートスイッチ10からの信号を受けて制御部14は製氷水タンク7内の水位が上水位であることを認識し、給水バルブ9を閉じて製氷水タンク7への給水を停止する。
【0011】
ここで、図3に示されるように、給水バルブ9を開いて製氷水タンク7へ給水を行っている際の時刻t1にフロートスイッチ10が製氷水タンク7内で引っ掛かって動作不良が発生すると、製氷水タンク7内の水位が上水位を超えてもフロートスイッチ10が上水位を検知できず、図2(c)に示されるように所定量を超えた水がオーバーフロー管11から溢れ出す。このとき、給水バルブ9を開いてから所定時間ΔT1が経過した時刻t2になってもフロートスイッチ10により上水位が検知されないと、制御部14は圧縮機5及びギヤードモータ4を停止させた上で給水バルブ9を5分間閉じて5分間開くという開閉動作を繰り返すことによりフロートスイッチ10の動作不良を復帰させようとする。このような開閉動作の繰り返しが製氷水タンク7内におけるフロートスイッチ10の引っ掛かりを解消するきっかけとなり、これによりフロートスイッチ10の動作不良が復帰しやすくなる。その結果、この開閉動作の途中でフロートスイッチ10が復帰して上水位を検知すると、製氷運転に戻る。
また、給水バルブ9がずっと開いたままにされずに5分間隔で閉じられるので、長寿命の給水バルブ9を実現することができる。
【0012】
但し、上述のような状態で時刻t2から設定時間Tが経過した時刻t3になってもまだフロートスイッチ10の動作不良が復帰されないと、すなわち、時刻t2から設定時間Tに亙って給水バルブ9の開閉を繰り返してもまだフロートスイッチ10により上水位が検知されないと、制御部14は時刻t4までギヤードモータ4を回転した後、排水バルブ13を開いて製氷水タンク7内の水を排出する。その後、製氷水タンク7内から十分に排水がなされた時刻t5に、制御部14は排水バルブ13を閉じると共に再び給水バルブ9を開き、製氷水タンク7への給水を開始する。
【0013】
このように一旦排水した状態の製氷水タンク7に給水が行われるため、それが製氷水タンク7内におけるフロートスイッチ10の引っ掛かりを解消するきっかけとなり、これによりフロートスイッチ10の動作不良がさらに復帰しやすくなる。その結果、フロートスイッチ10が正常に機能して製氷水タンク7内の水位が上水位になるとこれを検知する。さらに、この状態でギヤードモータ4を駆動した後、冷凍回路6の圧縮機5を駆動して再び製氷運転を開始する。
すなわち、フロートスイッチ10の動作不良を短時間で自動的に復帰させて通常運転を再開することができ、これにより作業者による点検及び修理などの手間が軽減される。
【0014】
また、長期間の断水が発生した場合にもフロートスイッチ10の動作不良が発生した場合と同様に、フロートスイッチ10により上水位を検知することができなくなり、設定時間Tに亙って給水バルブ9の開閉を繰り返しても上水位が検知されないため、排水バルブ13を開いて製氷水タンク7内の水が全て排出される。その後も断水が続くと、給水バルブ9が開かれても製氷水タンク7内に水が供給されないので、製氷水タンク7内は乾燥して雑菌が繁殖しにくい状態に保たれることとなる。
その結果、断水が復帰された後には、製氷水タンク7内に新たに供給された衛生的な水を用いて製氷を行うことができる。なお、排水バルブ13を開くと冷凍ケーシング1内の水も排出されるため、長期間の断水の間、製氷水タンク7内だけでなく冷凍ケーシング1内の衛生状態も良好に保つことができる。
【0015】
なお、上述の実施の形態では、給水バルブ9を5分間開いて5分間閉じるという開閉動作を繰り返すようにしていたが、給水バルブ9を開く時間は5分間に限定されるものではなく、また給水バルブ9の開時間と閉時間が同じでなくてもよい。
上述のように、給水バルブ9を開いてから所定時間ΔT1が経過した時刻t2になってもフロートスイッチ10により上水位が検知されない場合に上水位を検知することができるようになるまで圧縮機5及びギヤードモータ4を停止させるので、無駄な電力の消費を防止することができる。
【0016】
また、本発明は、オーガ式製氷機だけでなく、製氷水タンクを備えるその他の製氷機にも適用される。
【0017】
【発明の効果】
以上説明したように、この発明によれば、給水バルブを開いてから所定時間経過しても水位検知手段により上水位が検知されないときに、制御部は水位検知手段の動作不良を解消するために、製氷運転を停止すると共に給水バルブの開閉を繰り返すので、水位検知手段の動作不良を自動的に復帰させることができる。
【図面の簡単な説明】
【図1】 この発明の実施の形態に係るオーガ式製氷機を示す断面図である。
【図2】 実施の形態における製氷水タンク内の状態を示し、(a)は下水位の場合、(b)は上水位の場合、(c)は上水位を超えた場合をそれぞれ示す図である。
【図3】 実施の形態の動作を示すタイミングチャートである。
【符号の説明】
1 冷凍ケーシング、2 蒸発パイプ、3 オーガ、4 ギヤードモータ、5圧縮機、6 冷凍回路、7 製氷水タンク、8 給水管、9 給水バルブ、10 フロートスイッチ、11 オーバーフロー管、12 排水管、13 排水バルブ、14 制御部、T 設定時間、ΔT1 所定時間。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an ice making machine.
[0002]
[Prior art]
Conventionally, in an ice maker equipped with an ice making water tank, when the float switch attached to the ice making water tank detects the lower water level, the water supply valve is opened to supply water to the ice making water tank, and when the upper water level is detected, the water supply valve is closed. The amount of water in the ice making water tank is controlled by opening and closing the water supply valve in response to the detection state of the float switch, such as stopping water supply to the ice making water tank. Here, for example, Patent Document 1 discloses an auger type ice maker that determines that a failure has occurred and issues an alarm when the float switch cannot detect the upper and lower water levels for some reason.
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 9-269170
[Problems to be solved by the invention]
However, the ice making machine described in Patent Document 1 only issues an alarm, and the malfunction of the float switch cannot be restored unless the operator performs inspection and repair.
The present invention has been made to solve such a problem, and an object of the present invention is to provide an ice making machine that can automatically restore the malfunction of the water level detection means.
[0005]
[Means for Solving the Problems]
The ice making machine according to the present invention opens the water supply valve to supply water to the ice making water tank when the water level detection means detects the lower water level of the ice making water tank, and closes the water supply valve to supply water to the ice making water tank when the upper water level is detected. In the ice making machine, when the water level is not detected by the water level detection means even after a predetermined time has passed since the water supply valve was opened , the ice making operation is stopped and the water supply is stopped in order to eliminate the malfunction of the water level detection means. A control unit that repeatedly opens and closes the valve is provided.
In addition, a drainage valve for discharging the water in the ice making water tank is provided, and when the ice making operation is stopped for the set time and the water supply valve is repeatedly opened and closed, the water level detection means still does not detect the upper water level. The controller preferably opens the water supply valve after opening the drain valve and discharging the water in the ice making water tank.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 shows the overall structure of an ice making machine according to an embodiment of the present invention applied to an auger type ice making machine. This auger type ice making machine has a refrigeration casing 1, an evaporation pipe 2 is wound around the outer peripheral surface thereof, and an ice cutting auger 3 having a spiral blade is rotatable inside the refrigeration casing 1. A geared motor 4 for rotating the auger 3 is connected to the lower end of the auger 3. The evaporation pipe 2 of the refrigeration casing 1 constitutes a refrigeration circuit 6 together with a compressor 5, a condenser, a dryer, and an expansion valve as an evaporator.
[0007]
An ice making water tank 7 for storing ice making water is connected to the lower portion of the refrigeration casing 1 by a water supply pipe 8. A water supply valve 9 is attached to the upper part of the ice making water tank 7. Further, a float switch 10 is attached to the ice making water tank 7 as water level detecting means, and an overflow pipe 11 is connected thereto.
[0008]
Further, a drain pipe 12 is connected to the lower part of the refrigeration casing 1, and a drain valve 13 is attached in the middle of the drain pipe 12. The geared motor 4, the compressor 5 of the refrigeration circuit 6, the water supply valve 9, the float switch 10 and the drain valve 13 are electrically connected to the control unit 14.
[0009]
Next, the operation of the auger type ice making machine according to this embodiment will be described. First, when the auger type ice making machine is turned on, the water supply valve 9 is opened to supply water to the ice making water tank 7, the refrigeration circuit 6 is driven, and the geared motor 4 is further driven to perform ice making operation. Start. The ice making water supplied to the ice making water tank 7 is supplied into the refrigeration casing 1 through the water supply pipe 8 and cooled by the evaporation pipe 2, whereby ice grows on the inner peripheral surface of the refrigeration casing 1. This ice is scraped off by the rotation of the auger 3, becomes flaky ice, is conveyed upward by a spiral action, and is discharged from above the refrigeration casing 1.
[0010]
Here, when ice making water is consumed by the ice making operation and the water level in the ice making water tank 7 falls to a water level as shown in FIG. 2A, the float switch 10 detects the lower water level and this float switch. Upon receiving the signal from 10, the control unit 14 recognizes that the water level in the ice making water tank 7 is the sewage level, and opens the water supply valve 9 to supply water to the ice making water tank 7. As a result, the water level in the ice making water tank 7 gradually rises. When the water level in the ice making water tank reaches a water level as shown in FIG. 2 (b), the float switch 10 detects the upper water level and receives a signal from the float switch 10, and the control unit 14 receives the ice making water. Recognizing that the water level in the tank 7 is the upper water level, the water supply valve 9 is closed and the water supply to the ice making water tank 7 is stopped.
[0011]
Here, as shown in FIG. 3, when the float switch 10 is caught in the ice making water tank 7 at the time t1 when the water supply valve 9 is opened and water is supplied to the ice making water tank 7, an operation failure occurs. Even if the water level in the ice making water tank 7 exceeds the upper water level, the float switch 10 cannot detect the upper water level, and the water exceeding the predetermined amount overflows from the overflow pipe 11 as shown in FIG. At this time, if the water level is not detected by the float switch 10 at the time t2 when the predetermined time ΔT1 has elapsed since the water supply valve 9 was opened, the control unit 14 stops the compressor 5 and the geared motor 4 By repeating the opening / closing operation of closing the water supply valve 9 for 5 minutes and opening it for 5 minutes, the malfunction of the float switch 10 is attempted to be restored. Such repetition of the opening / closing operation is a trigger for eliminating the catch of the float switch 10 in the ice making water tank 7, thereby making it easy to restore the malfunction of the float switch 10. As a result, when the float switch 10 returns and detects the water level during the opening / closing operation, the ice making operation is resumed.
Further, since the water supply valve 9 is not kept open all the time and is closed at intervals of 5 minutes, the water supply valve 9 having a long life can be realized.
[0012]
However, the malfunction of the float switch 10 is not yet recovered even at the time t3 when the set time T has elapsed from the time t2 in the state as described above, that is, the water supply valve 9 over the set time T from the time t2. If the water level is not detected by the float switch 10 even after repeated opening and closing of the above, the control unit 14 rotates the geared motor 4 until time t4, and then opens the drain valve 13 to discharge the water in the ice making water tank 7. Thereafter, at time t5 when the drainage from the ice making water tank 7 is sufficiently performed, the control unit 14 closes the drain valve 13 and opens the water supply valve 9 again to start water supply to the ice making water tank 7.
[0013]
Since the water is supplied to the ice making water tank 7 once drained in this manner, it becomes a trigger for eliminating the catch of the float switch 10 in the ice making water tank 7, thereby further recovering the malfunction of the float switch 10. It becomes easy. As a result, when the float switch 10 functions normally and the water level in the ice making water tank 7 becomes the upper water level, this is detected. Further, after the geared motor 4 is driven in this state, the compressor 5 of the refrigeration circuit 6 is driven to start the ice making operation again.
In other words, the malfunction of the float switch 10 can be automatically restored in a short time and normal operation can be resumed, thereby reducing the labor and time of inspection and repair by the operator.
[0014]
In addition, when a long-time water break occurs, the water level cannot be detected by the float switch 10 as in the case where the float switch 10 malfunctions, and the water supply valve 9 is set over the set time T. Since the upper water level is not detected even if the opening and closing of is repeated, all the water in the ice making water tank 7 is discharged by opening the drain valve 13. If the water supply continues thereafter, water is not supplied into the ice making water tank 7 even if the water supply valve 9 is opened. Therefore, the inside of the ice making water tank 7 is kept dry and it is difficult for bacteria to propagate.
As a result, after the water break is restored, ice making can be performed using sanitary water newly supplied into the ice making water tank 7. When the drain valve 13 is opened, the water in the refrigeration casing 1 is also discharged, so that the sanitary condition not only in the ice making water tank 7 but also in the refrigeration casing 1 can be maintained well during a long period of water outage.
[0015]
In the above-described embodiment, the opening and closing operation of opening the water supply valve 9 for 5 minutes and closing it for 5 minutes is repeated, but the time for opening the water supply valve 9 is not limited to 5 minutes, The opening time and closing time of the valve 9 may not be the same.
As described above, when the water level is not detected by the float switch 10 even when the predetermined time ΔT1 has elapsed since the water supply valve 9 is opened, the compressor 5 is detected until the water level can be detected. Since the geared motor 4 is stopped, it is possible to prevent wasteful power consumption.
[0016]
Further, the present invention is applied not only to an auger type ice making machine but also to other ice making machines including an ice making water tank.
[0017]
【The invention's effect】
As described above, according to the present invention, when the water level is not detected by the water level detecting means even after a predetermined time has passed since the water supply valve is opened, the control unit eliminates the malfunction of the water level detecting means. Since the ice making operation is stopped and the water supply valve is repeatedly opened and closed, the malfunction of the water level detecting means can be automatically restored.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an auger type ice making machine according to an embodiment of the present invention.
FIG. 2 is a diagram showing a state in an ice making water tank according to the embodiment, where (a) is a sewage level, (b) is a top water level, and (c) is a case where the top water level is exceeded. is there.
FIG. 3 is a timing chart showing the operation of the embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Refrigeration casing, 2 Evaporation pipe, 3 Auger, 4 Geared motor, 5 Compressor, 6 Refrigeration circuit, 7 Ice-making water tank, 8 Water supply pipe, 9 Water supply valve, 10 Float switch, 11 Overflow pipe, 12 Drainage pipe, 13 Drainage Valve, 14 control unit, T set time, ΔT1 predetermined time.

Claims (2)

水位検知手段が製氷水タンクの下水位を検知すると給水バルブを開いて製氷水タンクへ給水を行うと共に上水位を検知すると給水バルブを閉じて製氷水タンクへの給水を停止する製氷機において、
給水バルブを開いてから所定時間経過しても水位検知手段により上水位が検知されないときに、前記水位検知手段の動作不良を解消するために、製氷運転を停止すると共に給水バルブの開閉を繰り返す制御部を備えることを特徴とする製氷機。
In an ice making machine that opens the water supply valve to supply water to the ice making water tank when the water level detection means detects the lower water level of the ice making water tank, and closes the water supply valve to stop water supply to the ice making water tank when the upper water level is detected.
Control to repeatedly open and close the water supply valve and stop the ice making operation in order to eliminate the malfunction of the water level detection means when the water level detection means is not detected even after a predetermined time has passed since the water supply valve was opened. An ice making machine comprising a section.
製氷水タンク内の水を排出するための排水バルブを備え、設定時間に亙って製氷運転を停止すると共に給水バルブの開閉を繰り返してもまだ水位検知手段により上水位が検知されない場合には、前記制御部は前記排水バルブを開いて製氷水タンク内の水を排出した後に再び給水バルブを開くことを特徴とする請求項1に記載の製氷機。If a water discharge valve is provided to discharge the water in the ice making water tank and the ice making operation is stopped over the set time and the water supply valve is repeatedly opened and closed, the water level detection means still does not detect the water level, 2. The ice making machine according to claim 1, wherein the control unit opens the water supply valve after opening the drain valve to discharge water in the ice making water tank.
JP2003115525A 2003-04-21 2003-04-21 Ice machine Expired - Fee Related JP4313601B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003115525A JP4313601B2 (en) 2003-04-21 2003-04-21 Ice machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003115525A JP4313601B2 (en) 2003-04-21 2003-04-21 Ice machine

Publications (2)

Publication Number Publication Date
JP2004324897A JP2004324897A (en) 2004-11-18
JP4313601B2 true JP4313601B2 (en) 2009-08-12

Family

ID=33496048

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003115525A Expired - Fee Related JP4313601B2 (en) 2003-04-21 2003-04-21 Ice machine

Country Status (1)

Country Link
JP (1) JP4313601B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019219095A (en) * 2018-06-19 2019-12-26 ホシザキ株式会社 Ice-making machine

Also Published As

Publication number Publication date
JP2004324897A (en) 2004-11-18

Similar Documents

Publication Publication Date Title
US6381975B1 (en) Ice dispenser
JP2009138962A (en) Ice making machine
KR100903141B1 (en) Washing machine and control method of thereof
US4644757A (en) Auger type ice-making apparatus
JP4313601B2 (en) Ice machine
KR200422128Y1 (en) Automatic drainage of concentrated water for air compressor
JP3694176B2 (en) Auger ice machine
KR100552502B1 (en) method for thawing icebound water in drainage hose of drum type washing machine
JP3694217B2 (en) Automatic ice machine
JPS6132305Y2 (en)
JP3834171B2 (en) Automatic ice machine
JP2002372349A (en) Auger type ice maker
JP2002048443A (en) Washing mechanism for auger type ice making machine
JP4771622B2 (en) Auger ice machine
JP4017379B2 (en) Auger ice machine
JP3653342B2 (en) Auger ice machine
JP2001082841A (en) Auger type ice machine
JP3670760B2 (en) Auger ice machine
JPH0332717B2 (en)
JPH09178314A (en) Operation protective device of auger type ice machine
JPH034825B2 (en)
JP4248061B2 (en) Ice machine
JPH034827B2 (en)
JP2009063208A (en) Ice-making machine
KR200360413Y1 (en) Electronic Urine Wash Combined Ice Maker

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20060323

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090106

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090216

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20090507

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20090515

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120522

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

Ref document number: 4313601

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130522

Year of fee payment: 4

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

LAPS Cancellation because of no payment of annual fees