JP2986999B2 - Dishwasher - Google Patents
DishwasherInfo
- Publication number
- JP2986999B2 JP2986999B2 JP4061890A JP6189092A JP2986999B2 JP 2986999 B2 JP2986999 B2 JP 2986999B2 JP 4061890 A JP4061890 A JP 4061890A JP 6189092 A JP6189092 A JP 6189092A JP 2986999 B2 JP2986999 B2 JP 2986999B2
- Authority
- JP
- Japan
- Prior art keywords
- cleaning
- opening
- rinsing
- washing
- dishwasher
- 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
Landscapes
- Washing And Drying Of Tableware (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、業務用の食器洗浄機に
係り、特に、洗浄槽内における洗浄液の洗浄力が長時間
安定して維持可能とされた食器洗浄機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher for business use, and more particularly to a dishwasher capable of stably maintaining the cleaning power of a cleaning liquid in a cleaning tank for a long time.
【0002】[0002]
【従来の技術】食器洗浄機は、洗浄機内に設置された汚
れた食器に、ポンプにより加圧された洗浄液およびすす
ぎ水を上下方向より順次噴射して前記食器を洗浄するも
のである。2. Description of the Related Art In a dishwasher, a washing liquid and a rinsing water pressurized by a pump are sequentially sprayed from a vertical direction onto a dirty dish provided in the washing machine to wash the dish.
【0003】この食器洗浄機としては、従来より例えば
実開昭63−129566号公報に開示されているよう
なものがある。この食器洗浄機の構造を図5に示す。As a dishwasher, there is a dishwasher disclosed in, for example, Japanese Utility Model Laid-Open No. 63-129566. FIG. 5 shows the structure of the dishwasher.
【0004】図5において、符号1は洗浄液を貯留する
洗浄槽で、符号2は洗浄液を食器に噴射する主洗浄ノズ
ル、符号3は洗浄槽1内の洗浄液を主洗浄ノズル2へと
供給する主洗浄ポンプである。また、符号4は湯沸器
で、符号5は湯沸器4より供給された温水を更に加熱し
て高温のすすぎ水とするブースター、符号6はブースタ
ー5より供給されたすすぎ水をすすぎノズル6に供給す
るすすぎポンプ7である。ここで、洗浄槽1から主洗浄
ノズル2および湯沸器4からすすぎノズル6に至る経路
はいずれも管路8により連結されている。In FIG. 5, reference numeral 1 denotes a cleaning tank for storing a cleaning liquid, reference numeral 2 denotes a main cleaning nozzle for spraying the cleaning liquid onto tableware, and reference numeral 3 denotes a main cleaning nozzle for supplying the cleaning liquid in the cleaning tank 1 to the main cleaning nozzle 2. It is a washing pump. Reference numeral 4 denotes a water heater, reference numeral 5 denotes a booster for further heating the hot water supplied from the water heater 4 to produce high-temperature rinsing water, and reference numeral 6 denotes a rinsing nozzle 6 for rinsing the rinsing water supplied from the booster 5. Is a rinsing pump 7 to be supplied to Here, the paths from the cleaning tank 1 to the main cleaning nozzle 2 and from the water heater 4 to the rinsing nozzle 6 are all connected by a pipe 8.
【0005】符号11は洗剤供給装置である。この装置
は、洗剤タンク11a内の洗剤を汲み上げる洗剤ポンプ
11bと、汲み上げられた洗剤を洗浄槽1に供給するホ
ース11cとから構成され、また、洗剤ポンプ11bの
作動時間はすすぎポンプ7の作動時間と同期している。[0005] Reference numeral 11 denotes a detergent supply device. This apparatus comprises a detergent pump 11b for pumping the detergent in the detergent tank 11a and a hose 11c for supplying the pumped detergent to the washing tank 1. The operating time of the detergent pump 11b is the operating time of the rinse pump 7. Is synchronized with
【0006】符号9は、余剰の洗浄液を排出し、洗浄槽
1の水位を一定に維持するための排水口で、その上端9
aは洗浄槽1における適正水位と同一平面上に開口して
いる。また、符号12は洗浄槽の上部に設置され、洗浄
液に混入した食物のかすを始めとする残滓を漉し取るた
めの濾器、符号10は前記食器洗浄機の容器である。Reference numeral 9 denotes a drain port for discharging excess cleaning liquid and keeping the water level in the cleaning tank 1 constant.
a is open on the same plane as the appropriate water level in the washing tank 1. Reference numeral 12 denotes a filter installed at the top of the washing tank for filtering out residues such as food residues mixed in the washing liquid, and reference numeral 10 denotes a container of the dishwasher.
【0007】上記従来の食器洗浄機においては、食器を
収納した食器洗浄籠(図示せず)を洗浄槽1上に設置
し、主洗浄ポンプを作動させて洗浄液を主洗浄ノズル2
から食器に向けて噴射する主洗浄行程と、すすぎポンプ
7を作動させてすすぎ水をすすぎノズル6から食器に向
けて噴射するすすぎ行程とを、タイマー制御等の方法を
用いて一定周期で繰り返すことにより食器が自動的に洗
浄される。この場合、主洗浄行程とすすぎ行程との間に
は一定の休止時間が設けられている。In the above-mentioned conventional dishwasher, a dishwashing basket (not shown) accommodating dishes is placed on a washing tank 1 and a main washing pump is operated to supply a washing liquid to a main washing nozzle 2.
The main cleaning process of spraying water from the nozzle to the tableware and the rinsing process of operating the rinsing pump 7 and rinsing water from the rinsing nozzle 6 toward the tableware are repeated at regular intervals using a method such as timer control. Automatically cleans the dishes. In this case, a certain downtime is provided between the main cleaning step and the rinsing step.
【0008】一方、洗浄液中の洗剤濃度は、すすぎ行程
にてすすぎノズル6から噴射されたすすぎ水の流入によ
り低下するが、前記の通り洗剤供給装置11の作動時間
がすすぎポンプ7の作動時間と同期しているため、洗剤
供給装置11の作用により、食器洗浄機のすすぎ行程毎
に一定量の洗剤が洗浄槽1に供給される。その結果、供
給された洗剤により洗浄槽1における洗剤の濃度低下が
防止される。On the other hand, the concentration of the detergent in the cleaning liquid decreases due to the inflow of the rinsing water injected from the rinsing nozzle 6 during the rinsing step. As described above, the operation time of the detergent supply device 11 is shorter than the operation time of the rinsing pump 7. Because of the synchronization, the detergent supply device 11 supplies a constant amount of detergent to the washing tank 1 at every rinsing stroke of the dishwasher. As a result, the supplied detergent prevents the detergent concentration in the washing tank 1 from decreasing.
【0009】[0009]
【発明が解決しようとする課題】通常、食器洗浄機にお
いては、主洗浄ノズル2から噴射された洗浄液およびす
すぎノズル6から噴射されたすすぎ水はいずれも洗浄槽
1内に回収されるが、食器に付着した汚れが洗浄ととも
に洗浄液に混入するため、洗浄の繰り返しに伴い徐々に
洗浄液が汚れ、洗浄液の洗浄能力が低下する恐れがあ
る。Normally, in a dishwasher, both the washing liquid jetted from the main washing nozzle 2 and the rinsing water jetted from the rinsing nozzle 6 are collected in the washing tank 1. Since the dirt adhering to the cleaning liquid is mixed into the cleaning liquid together with the cleaning, the cleaning liquid may be gradually contaminated with the repetition of the cleaning, and the cleaning ability of the cleaning liquid may be reduced.
【0010】そこで、上記従来の食器洗浄機において
は、前記の通りすすぎ行程に伴い洗浄槽1にすすぎ水を
流入させ、かつすすぎ行程と同期して洗剤を供給すると
ともに、すすぎ水の流入により増加した洗浄槽1内の洗
浄液を、排水口上端9aからオーバーフローさせて排出
することにより洗浄液の浄化および更新を行っていた。Therefore, in the above-mentioned conventional dishwasher, rinsing water flows into the washing tank 1 in accordance with the rinsing process as described above, and the detergent is supplied in synchronization with the rinsing process. The cleaning liquid in the cleaning tank 1 is overflowed and discharged from the upper end 9a of the drain port to purify and renew the cleaning liquid.
【0011】ここで、洗浄液の浄化および更新という観
点から、すすぎ水の流入に伴い洗浄槽1から排出される
排水は、数次にわたる使用に伴い汚れて洗浄能力が低下
した洗浄液であることが望ましい。ところが、前記すす
ぎ水および洗剤はいずれも上方から洗浄槽1に供給され
るため、洗浄槽1内においては、液面に近い洗浄液ほど
使用頻度が低いため浄能力が高く、汚れて洗浄能力が低
下した洗浄液は底部に溜る傾向がある。Here, from the viewpoint of purification and renewal of the cleaning liquid, it is desirable that the wastewater discharged from the cleaning tank 1 with the inflow of the rinsing water is a cleaning liquid that has been contaminated with several uses and has a reduced cleaning ability. . However, since both the rinsing water and the detergent are supplied to the cleaning tank 1 from above, the cleaning liquid in the cleaning tank 1 has a higher cleaning ability because the frequency of use of the cleaning liquid nearer to the liquid level is lower. Washed liquid tends to collect at the bottom.
【0012】その結果、排水口上端9aからのオーバー
フローにより洗浄液を排出する場合には、液面付近の最
も洗浄能力が高い洗浄液が直接排出される一方、底部に
溜った洗浄能力の低い洗浄液が排出されないことがあ
り、必ずしも洗浄液の浄化および更新が充分に行われな
いという問題があった。As a result, when the cleaning liquid is discharged by overflow from the upper end 9a of the drain port, the cleaning liquid having the highest cleaning performance near the liquid surface is directly discharged, while the cleaning liquid having the low cleaning performance collected at the bottom is discharged. There is a problem that the cleaning liquid is not always sufficiently purified and renewed.
【0013】また、主洗浄行程に伴い洗浄液に混入した
残滓は洗浄槽1の上部に設置された濾器12に蓄積され
るが、濾器12が洗浄槽1の上部に設置されているた
め、前記主洗浄行程において洗浄液を循環させる場合、
洗浄液が常時濾器12に蓄積された残滓の層を通過して
循環することとなり、その結果、洗浄液の洗浄能力(ア
ルカリ活性度)が前記残滓との化学反応により低下する
という問題もあった。Further, the residue mixed in the cleaning liquid during the main cleaning process is accumulated in the filter 12 provided above the cleaning tank 1. However, since the filter 12 is provided above the cleaning tank 1, When circulating the cleaning liquid during the cleaning process,
The cleaning liquid is constantly circulated through the residue layer accumulated in the filter 12, and as a result, there is a problem that the cleaning ability (alkali activity) of the cleaning liquid is reduced by a chemical reaction with the residue.
【0014】[0014]
【課題を解決するための手段】本発明では、上記技術課
題を解決するために、第1の手段として、主洗浄工程に
用いられた洗浄液とすすぎ行程に用いられたすすぎ水と
を前記洗浄液として洗浄糟に回収し、該洗浄糟の洗浄液
を循環使用することにより複数回に亘って前記主洗浄行
程を繰り返し行うと共に、該主洗浄行程の間に他から供
給されたすすぎ水を用いて前記すすぎ行程を繰り返し行
って洗浄対象物を洗浄する食器洗浄機において、洗浄液
の排水用に洗浄糟の底部に設けられた開口部と、該開口
部を開閉する開閉手段と、他から供給されたすすぎ水と
同量の洗浄液を洗浄糟から排水するように開閉手段を制
御する開閉制御手段とを具備する手段を採用する。ま
た、第2の手段として、洗浄糟内に貯留された洗浄液を
循環使用することにより複数回に亘って主洗浄行程を繰
り返し行い、かつ、この主洗浄行程の間にすすぎ水を用
いたすすぎ行程を繰り返し行うことにより洗浄対象物を
洗浄する食器洗浄機において、洗浄液の排水用に洗浄糟
の底部に設けられた開口部と、該開口部を開閉する開閉
手段と、主洗浄行程とすすぎ行程との間に開口部を開状
態とするように開閉手段を制御する開閉制御手段とを具
備する手段を採用する。 According to the present invention, there is provided the above technical section.
In order to solve the problem, as the first means, the main cleaning process
With the used washing liquid and the rinse water used in the rinsing process
In the washing tank as the washing liquid, and the washing liquid in the washing tank
By circulating the main cleaning line several times
Process is repeated, and during the main cleaning process,
Repeating the rinsing step using the supplied rinsing water
In a dishwasher that cleans objects to be cleaned,
Opening provided at the bottom of the washing tank for draining water, and the opening
Opening and closing means for opening and closing the section, and rinsing water supplied from other
Control the opening and closing means so that the same amount of washing liquid is drained from the washing tank.
And means for controlling opening and closing control. Further, as a second means, the cleaning liquid stored in the cleaning tank is
The main cleaning process can be repeated several times
And rinse water during this main cleaning process.
The object to be cleaned can be cleaned by repeating the rinsing process.
In a dishwasher to be washed, a washing tank is used to drain the washing liquid.
Opening at the bottom of the door and opening and closing to open and close the opening
Opening means and opening between main cleaning and rinsing strokes
Opening / closing control means for controlling the opening / closing means to be in a state.
Measures to be provided.
【0015】[0015]
【作用】上記第1の手段によれば、洗浄糟の底部に溜ま
ったすすぎ水と同量の洗浄液(洗浄力が低下した洗浄
液)が開口部から優先的に排水される。 According to the first means, the liquid is collected at the bottom of the washing tank.
The same amount of washing solution as washing water (washing with reduced washing power)
Liquid) is preferentially drained from the opening.
【0016】また、上記第2の手段によれば、主洗浄行
程主洗浄行程とすすぎ行程との間において、洗浄糟の底
部に溜まった洗浄力が低下した洗浄液が開口部から優先
的に排水される。 According to the second means, the main cleaning line
Between the main washing and rinsing steps
Cleaning fluid with reduced cleaning power accumulated in the area takes precedence from the opening
Drained.
【0017】[0017]
【実施例】以下、図面に基づき、本発明の実施例につい
て更に詳しく説明する。本発明に係る食器洗浄機の構造
の例を図1に示す。図1において、符号31は洗浄槽
で、この洗浄槽31には洗浄液が貯留されている。洗浄
槽31の底部には主洗浄ポンプ32が設置され、この主
洗浄ポンプ32の作用により、洗浄槽31内の洗浄液が
第一の管路33を介して主洗浄ノズル34へと供給され
る。Embodiments of the present invention will be described below in more detail with reference to the drawings. FIG. 1 shows an example of the structure of the dishwasher according to the present invention. In FIG. 1, reference numeral 31 denotes a cleaning tank, in which a cleaning liquid is stored. A main cleaning pump 32 is provided at the bottom of the cleaning tank 31, and the cleaning liquid in the cleaning tank 31 is supplied to a main cleaning nozzle 34 through a first conduit 33 by the operation of the main cleaning pump 32.
【0018】符号35は水道栓を始めとする水源で、水
源35より供給される水は湯沸器36にて加熱され、約
60℃前後の温水となってブースター37に至り、ブー
スター37にて更に加熱されて約90℃前後のすすぎ水
となる。このすすぎ水は更にすすぎポンプ38の作用に
よりすすぎノズル39に供給される。ここで、水源35
よりすすぎポンプ38を経てすすぎノズル39に至る経
路は第二の管路40により連結されている。Reference numeral 35 denotes a water source such as a water tap. Water supplied from the water source 35 is heated by a water heater 36, turned into hot water of about 60 ° C., reaches a booster 37, and is heated by the booster 37. It is further heated to a rinse water of about 90 ° C. The rinse water is further supplied to the rinse nozzle 39 by the action of the rinse pump 38. Here, the water source 35
The path from the rinsing pump 38 to the rinsing nozzle 39 is connected by a second conduit 40.
【0019】洗浄槽31の底部には開口部46が形成さ
れ、この開口部46は自動開閉弁(開閉手段)42によ
り開閉自在とされている。自動開閉弁42としては、例
えば電磁弁等が用いられる。An opening 46 is formed at the bottom of the washing tank 31. The opening 46 can be opened and closed by an automatic opening / closing valve (opening / closing means) 42. As the automatic opening / closing valve 42, for example, a solenoid valve or the like is used.
【0020】自動開閉弁42には流路41の一端が接続
され、流路41の他端には、例えば図2に示すように前
記洗浄液中の残滓を漉し取る濾器43が設けられてい
る。この濾器43は例えばステンレス等からなる取り外
し可能な籠状のもので、液体は通過可能であるが固形物
は通過不可能な構造となっている。なお、符号43aは
濾器43を支持する容器、符号47は容器43aからの
排水量を調節する弁である。One end of a flow path 41 is connected to the automatic opening / closing valve 42. At the other end of the flow path 41, for example, as shown in FIG. The filter 43 is a removable cage made of, for example, stainless steel, and has a structure that allows liquid to pass through but does not allow solids to pass. Reference numeral 43a denotes a container for supporting the filter 43, and reference numeral 47 denotes a valve for adjusting the amount of drainage from the container 43a.
【0021】そして、これら主洗浄ポンプ32、すすぎ
ポンプ38、および自動開閉弁42の作動時期および作
動時間は、それぞれタイマー等を用いたポンプ制御手段
および開閉制御手段(いずれも図示せず)により制御さ
れる。The operation timing and operation time of the main cleaning pump 32, the rinsing pump 38, and the automatic on-off valve 42 are controlled by pump control means and open / close control means (neither shown) using a timer or the like, respectively. Is done.
【0022】一方、符号44は洗剤供給装置である。こ
の洗剤供給装置は、洗剤の入っている洗剤タンク44a
と、洗剤タンク44aに装着された洗剤ポンプ44b
と、洗剤ポンプ44bと洗浄槽31とを連結するホース
44cとからなり、洗剤ポンプ44bの作動時間は、す
すぎポンプ38の作動時間と同期している。なお、符号
45は食器洗浄機の周囲を覆う容器である。On the other hand, reference numeral 44 denotes a detergent supply device. This detergent supply device comprises a detergent tank 44a containing detergent.
And a detergent pump 44b mounted on the detergent tank 44a.
And a hose 44c connecting the detergent pump 44b and the washing tank 31. The operation time of the detergent pump 44b is synchronized with the operation time of the rinse pump 38. Reference numeral 45 is a container that covers the periphery of the dishwasher.
【0023】次に、上記構成を有する食器洗浄機におけ
る食器(洗浄対象物)の洗浄行程について以下に述べ
る。図3は、本実施例の食器洗浄機における洗浄行程お
よび食器洗浄機を構成する各要素の作動行程を示すタイ
ムチャートである。Next, a washing process of dishware (object to be washed) in the dishwasher having the above-described configuration will be described below. FIG. 3 is a time chart showing a washing process in the dishwasher of the present embodiment and an operation process of each element constituting the dishwasher.
【0024】食器洗浄機の電源を入れ、食器を収納した
食器洗浄籠(図示せず)を洗浄槽31上に設置した後、
食器洗浄機を始動させると、まず、前記ポンプ制御手段
の作用により主洗浄ポンプ32が作動し、洗浄槽31内
の洗浄液が第一の管路33を通り主洗浄ノズル34から
食器に向けて噴射され、食器の洗浄が行われる。これが
主洗浄行程である。主洗浄行程においては、自動開閉弁
42は閉状態とされている。After the power of the dishwasher is turned on and a dishwashing basket (not shown) accommodating the dishes is placed on the washing tank 31,
When the dishwasher is started, first, the main cleaning pump 32 is operated by the action of the pump control means, and the cleaning liquid in the cleaning tank 31 is injected from the main cleaning nozzle 34 toward the tableware through the first pipe 33. Then, the dishes are washed. This is the main cleaning process. In the main cleaning step, the automatic on-off valve 42 is in a closed state.
【0025】主洗浄行程終了後には一定の休止時間が設
けられているが、本実施例においては、この休止時間に
対応して前記開閉制御手段が作動し、自動開閉弁42が
開状態となる。その結果、休止時間中洗浄液が開口部4
6から重力により流路41を経て濾器43へと排出さ
れ、残滓のみが濾器43において漉し取られる。休止時
間が終了すると、自動開閉弁42は再度閉状態とされ、
洗浄槽31から濾器43への洗浄液の排出が停止され
る。なお、濾器43にて漉し取られた残滓は適宜廃棄す
る。After the end of the main cleaning step, a certain pause time is provided. In the present embodiment, the opening / closing control means operates in accordance with the pause time, and the automatic opening / closing valve 42 is opened. . As a result, the cleaning liquid is supplied to the opening 4 during the idle time.
6 is discharged to the filter 43 via the flow path 41 by gravity, and only the residue is filtered out in the filter 43. When the pause time ends, the automatic on-off valve 42 is closed again.
The discharge of the cleaning liquid from the cleaning tank 31 to the filter 43 is stopped. The residue filtered by the filter 43 is appropriately discarded.
【0026】次いで、前記ポンプ制御手段の作用により
すすぎポンプ38が作動し、水源35から供給される水
が第二の管路40を通り湯沸器36およびブースター3
7にて加熱され、約90℃前後のすすぎ水となってすす
ぎノズル39から食器に向けて噴射され、食器のすすぎ
が行われる。これがすすぎ行程である。また、前記の通
り、洗剤ポンプ44bの作動時間がすすぎポンプ38の
作動時間と同期しているため、すすぎ行程毎に洗剤ポン
プ44bが作動し、すすぎ行程の間、一定量の洗剤がホ
ース44cを経て洗浄槽31に供給される。Next, the rinsing pump 38 is operated by the action of the pump control means, and the water supplied from the water source 35 passes through the second pipe 40 and the water heater 36 and the booster 3
Heated at 7, and becomes rinse water of about 90 ° C., which is sprayed from the rinse nozzle 39 toward the tableware, and the tableware is rinsed. This is the rinsing process. As described above, since the operation time of the detergent pump 44b is synchronized with the operation time of the rinsing pump 38, the detergent pump 44b operates every rinsing stroke, and during the rinsing stroke, a certain amount of detergent connects the hose 44c. After that, it is supplied to the cleaning tank 31.
【0027】そして、前記ポンプ制御手段により主洗浄
ポンプ32とすすぎポンプ38とを交互に作動させ、か
つ前記開閉制御手段により前記休止時間に自動開閉弁4
2を開状態とすることにより、上記主洗浄行程とすすぎ
行程が洗浄液の排出行程を挟んで一定の周期で繰り返さ
れ、食器が自動的に洗浄される。なお、本実施例の場
合、前記周期は例えば主洗浄行程を50秒、休止時間を
5秒、すすぎ行程を10秒とする。Then, the main cleaning pump 32 and the rinsing pump 38 are alternately operated by the pump control means, and the automatic opening / closing valve 4 is turned on during the idle time by the opening / closing control means.
By setting 2 to the open state, the main washing step and the rinsing step are repeated at a constant cycle with the washing liquid discharge step interposed therebetween, and the dishes are automatically washed. In the case of this embodiment, the cycle is, for example, 50 seconds for the main cleaning step, 5 seconds for the pause time, and 10 seconds for the rinsing step.
【0028】ここで、主洗浄ノズル34から噴射された
洗浄液およびすすぎノズル39から噴射されたすすぎ水
はいずれも洗浄槽31に流入し、主洗浄ポンプ34の作
用により再度主洗浄行程にて使用される。従って、洗浄
槽31内の洗剤濃度は、すすぎ行程に伴うすすぎ水の流
入により低下するが、前記の通り、洗剤供給装置の作用
により、すすぎ行程の間一定量の洗剤が洗浄槽31に供
給されているため、前記すすぎ水の流入による洗浄槽3
1内における洗剤濃度の低下が防止され、洗浄槽31内
の洗剤濃度が常時一定に保たれる。Here, the cleaning liquid jetted from the main cleaning nozzle 34 and the rinse water jetted from the rinsing nozzle 39 both flow into the cleaning tank 31 and are used again in the main cleaning step by the action of the main cleaning pump 34. You. Therefore, the concentration of the detergent in the cleaning tank 31 decreases due to the inflow of the rinsing water accompanying the rinsing process. However, as described above, a certain amount of detergent is supplied to the cleaning tank 31 during the rinsing process by the operation of the detergent supply device. Cleaning tank 3
1 is prevented from decreasing, and the detergent concentration in the washing tank 31 is always kept constant.
【0029】しかも、洗浄槽31内の洗浄液は前記休止
時間における開口部46の開口により排出されるため、
すすぎ行程に伴うすすぎ水の流入量と、開口部46の開
口による洗浄液の排出量とを一致させておけば、洗浄槽
1の水位を常時一定に維持することができる。Further, since the cleaning liquid in the cleaning tank 31 is discharged through the opening of the opening 46 during the idle time,
If the inflow amount of the rinsing water during the rinsing process and the discharge amount of the cleaning liquid through the opening of the opening 46 are made to coincide with each other, the water level in the cleaning tank 1 can be constantly maintained at a constant level.
【0030】一方、前述の通り、一般に洗浄槽31にお
いては、液面に近い洗浄液ほど洗浄能力が高く、汚れて
洗浄能力が低下した洗浄液は底部に溜る傾向があるが、
本発明の食器洗浄機の場合、洗浄液が洗浄槽31の底部
から排出されるため、排出される洗浄液は、主に洗浄能
力が低下した洗浄液となる。On the other hand, as described above, in the cleaning tank 31, generally, the cleaning liquid having a higher cleaning ability is closer to the liquid surface, and the cleaning liquid having a reduced cleaning ability due to contamination tends to collect at the bottom.
In the case of the dishwasher of the present invention, since the cleaning liquid is discharged from the bottom of the cleaning tank 31, the discharged cleaning liquid is mainly a cleaning liquid having a reduced cleaning ability.
【0031】従って、洗浄槽31内においては、清浄で
洗浄能力が高い洗浄液が上方から供給されるとともに、
汚れて洗浄能力が低下した洗浄液が底部から排出され、
その結果、洗浄液の浄化および更新が充分に行われ、洗
浄液の洗浄能力低下が防止される。Accordingly, in the cleaning tank 31, a cleaning liquid having a high cleaning ability and a high cleaning ability is supplied from above.
Dirty cleaning liquid with reduced cleaning capacity is drained from the bottom,
As a result, the cleaning liquid is sufficiently purified and renewed, and a reduction in the cleaning ability of the cleaning liquid is prevented.
【0032】また、洗浄液中の残滓を漉し取る濾器43
が流路41の末端に設けられているため、濾器43に蓄
積された残滓が洗浄槽31内の洗浄液と分離され、その
結果、前記残滓との接触に伴う化学反応による洗浄液の
洗浄能力(活性アルカリ度)の低下が防止される。Further, a filter 43 for filtering out the residue in the washing solution is provided.
Is provided at the end of the flow path 41, the residue accumulated in the filter 43 is separated from the cleaning liquid in the cleaning tank 31, and as a result, the cleaning ability (activity) of the cleaning liquid by a chemical reaction accompanying the contact with the residue. Alkalinity) is prevented.
【0033】なお、上記実施例においては、前記開閉制
御手段の作動時期を前記ポンプ制御手段の作動時期と連
動させることにより、主洗浄行程とすすぎ行程間の休止
時間に自動開閉弁42を開状態としたが、前記開閉制御
手段として、洗浄槽31内の洗浄液の水位を検知するフ
ロートスイッチや、任意の時間にセット可能なタイマー
等を用いたり、また、これら複数の制御手段を併用して
自動開閉弁42の作動行程を制御してもよい。開口部4
6の開放による洗浄液の排出をすすぎ行程または主洗浄
行程中に行うことももちろん可能である。In the above embodiment, the operation timing of the opening / closing control means is linked with the operation timing of the pump control means, so that the automatic opening / closing valve 42 is kept open during the idle time between the main washing step and the rinsing step. However, as the opening / closing control means, a float switch for detecting the water level of the cleaning liquid in the cleaning tank 31, a timer that can be set at an arbitrary time, or the like is used. The operation stroke of the on-off valve 42 may be controlled. Opening 4
Of course, it is also possible to discharge the cleaning liquid by opening 6 during the rinsing step or the main cleaning step.
【0034】[0034]
【実験例】以下、実験例を示し、本発明の効果について
説明する。A,Bに示す2種類の洗浄方法を用い、それ
ぞれ表1に示す条件下において食器の洗浄を行い、洗浄
回数の増加に伴う洗浄液の洗浄能力(活性アルカリ度)
の変化を調査、比較した。その結果を図4に示す。EXPERIMENTAL EXAMPLES The effects of the present invention will be described below with reference to experimental examples. Tableware was cleaned under the conditions shown in Table 1 using the two types of cleaning methods shown in A and B, respectively, and the cleaning ability (active alkalinity) of the cleaning liquid accompanying the increase in the number of times of cleaning.
Were investigated and compared. FIG. 4 shows the results.
【0035】洗浄方法A(従来の食器洗浄器を用いた場
合):容量60リットルの洗浄槽を用い、余剰洗浄液を
オーバーフローさせて排出した。また、すすぎには毎回
6リットルの温水を用いた。Washing method A (when using a conventional dishwasher): A washing tank having a capacity of 60 liters was used, and excess washing liquid was overflowed and discharged. For rinsing, 6 liters of warm water was used each time.
【0036】洗浄方法B(本発明の食器洗浄器を用いた
場合):容量18リットルの洗浄槽を用い、洗浄液の1
/3を毎回余剰洗浄液として洗浄槽底部より排出した。
また、すすぎには毎回6リットルの温水を用いた。Washing method B (in the case of using the dishwasher of the present invention): using a washing tank having a capacity of 18 liters,
/ 3 was discharged from the bottom of the washing tank as excess washing liquid every time.
For rinsing, 6 liters of warm water was used each time.
【0037】なお、洗剤および汚れにはいずれも同一の
ものを用い、温水の温度はいずれも60℃とした。The same detergent and stain were used, and the temperature of the hot water was 60 ° C.
【0038】[0038]
【表1】 [Table 1]
【0039】図4に示す通り、洗浄方法Aを用いた場合
においては、約10回洗浄を繰り返すと、洗剤の活性度
が、洗剤の有効な洗浄能力の指標である活性アルカリ度
=1.50×10-2%以下となり、有効な洗浄が行われ
なくなるのに対し、洗浄方法Bを用いた場合において
は、16回洗浄を繰り返しても、洗剤の活性度は活性ア
ルカリ度=1.50×10-2%以上であった。これは、
洗浄方法Bにおいては、連続的な洗浄回数が少なくとも
16回以下であれば、常時有効な洗浄が行われているこ
とを示すものである。As shown in FIG. 4, in the case of using the cleaning method A, when the cleaning is repeated about 10 times, the activity of the detergent becomes an active alkalinity = 1.50 which is an index of the effective cleaning ability of the detergent. × 10 -2 % or less, and no effective cleaning can be performed. On the other hand, in the case of using the cleaning method B, the activity of the detergent becomes active alkalinity = 1.50 × even if the cleaning is repeated 16 times. It was 10 -2 % or more. this is,
In the cleaning method B, if the number of continuous cleanings is at least 16 or less, it indicates that effective cleaning is always performed.
【0040】しかも、これら16回の洗浄において、洗
剤の活性度はほぼ同一水準を維持していた。これは、洗
浄方法Bにおいては、連続的な洗浄回数が少なくとも1
6回以下であれば、同一の洗浄条件下であっても、洗浄
程度の差が非常に少ない安定した洗浄が行われているこ
とを示している。Moreover, in these 16 washings, the activity of the detergent was maintained at substantially the same level. This is because, in the cleaning method B, the number of continuous cleanings is at least one.
If the number of cleanings is six or less, it indicates that stable cleaning with very little difference in cleaning degree is performed even under the same cleaning conditions.
【0041】すなわち、本発明の食器洗浄器を用いて洗
浄を行った場合、洗浄槽内における洗浄液の洗浄力が従
来の食器洗浄器を用いた場合より長時間かつ安定した水
準で維持されることは、上記実験例からも明かである。That is, when cleaning is performed using the dishwasher of the present invention, the cleaning power of the cleaning liquid in the cleaning tank is maintained for a longer time and at a stable level than in the case of using the conventional dishwasher. Is clear from the above experimental example.
【0042】[0042]
【発明の効果】以上説明した通り、本発明の食器洗浄機
によれば、主洗浄工程とすすぎ行程とを繰り返し行うタ
イプの食器洗浄機において、洗浄糟の底部の洗浄力が低
下した洗浄液を開口部から優先的に排水するので、主洗
浄工程とすすぎ行程の繰り返しによって汚れる洗浄液の
浄化・更新をより確実に行うことができる。 As described above, the dishwasher of the present invention is used.
According to the method, a main cleaning step and a rinsing step are repeatedly performed.
In Ip dishwashers, the cleaning power at the bottom of the washing tank is low.
Since the dropped cleaning liquid is drained preferentially from the opening, the main cleaning
Of cleaning solution that becomes dirty due to repetition of the cleaning process and the rinsing process.
Purification and renewal can be performed more reliably.
【0043】また、洗浄糟の底部には洗浄対象物に付着
していた残滓が溜まり、この残滓が洗浄液と化学反応し
て洗浄液の洗浄力が低下するが、洗浄液と共に残滓が洗
浄糟の底部に設けられた開口部から排出されるので、主
洗浄工程とすすぎ行程の繰り返しによって生じる洗浄液
の洗浄力低下を効果的に抑えることができる。 The bottom of the washing tank adheres to the object to be washed.
The remaining residue accumulates, and this residue chemically reacts with the cleaning solution.
The cleaning solution's detergency, but the residue is removed together with the cleaning solution.
Since it is discharged from the opening provided at the bottom of the purifier,
Cleaning liquid generated by repetition of the cleaning and rinsing steps
Can be effectively suppressed from deteriorating.
【0044】[0044]
【図1】本発明の食器洗浄機の構造の例を示す図であ
る。FIG. 1 is a diagram showing an example of the structure of a dishwasher according to the present invention.
【図2】本発明の食器洗浄機の構造の例を示す食器洗浄
機の側面図である。FIG. 2 is a side view of the dishwasher showing an example of the structure of the dishwasher of the present invention.
【図3】本発明の食器洗浄機における洗浄行程の例を示
すタイムチャートである。FIG. 3 is a time chart showing an example of a washing process in the dishwasher of the present invention.
【図4】本発明の食器洗浄機および従来の食器洗浄機を
用いた場合における、洗浄回数の増加に伴う洗浄液の洗
浄能力の変化を比較した図である。FIG. 4 is a diagram comparing changes in the cleaning ability of the cleaning liquid with an increase in the number of times of cleaning when the dishwasher of the present invention and a conventional dishwasher are used.
【図5】従来の食器洗浄機の構造の例を示す図である。FIG. 5 is a diagram showing an example of the structure of a conventional dishwasher.
1,31 洗浄槽 2,34 主洗浄ノズル 3,32 主洗浄ポンプ 4,36 湯沸器 5,37 ブースター 6,39 すすぎノズル 7,38 すすぎポンプ 8 管路 9 排水口 9a 排水口の上端 10,43a,45 容器 11,44 洗剤供給装置 11a,44a 洗剤タンク 11c,44c ホース 11b,44b 洗剤ポンプ 12,43 濾器 33 第一の管路 35 水源 40 第二の管路 41 流路 42 自動開閉弁 46 開口部 47 弁 1,31 Cleaning tank 2,34 Main cleaning nozzle 3,32 Main cleaning pump 4,36 Water heater 5,37 Booster 6,39 Rinsing nozzle 7,38 Rinse pump 8 Pipe line 9 Drain 9a Top end of drain 10, 43a, 45 Vessel 11, 44 Detergent supply device 11a, 44a Detergent tank 11c, 44c Hose 11b, 44b Detergent pump 12, 43 Filter 33 First line 35 Water source 40 Second line 41 Flow path 42 Automatic opening / closing valve 46 Opening 47 valve
Claims (2)
行程に用いられたすすぎ水とを前記洗浄液として洗浄糟
に回収し、該洗浄糟の洗浄液を循環使用することにより
複数回に亘って前記主洗浄行程を繰り返し行うと共に、
該主洗浄行程の間に他から供給されたすすぎ水を用いて
前記すすぎ行程を繰り返し行って洗浄対象物を洗浄する
食器洗浄機であって、 洗浄液の排水用に前記洗浄糟の底部に設けられた開口部
と、 該開口部を開閉する開閉手段と、 前記他から供給されたすすぎ水と同量の洗浄液を洗浄糟
から排水するように開閉手段を制御する開閉制御手段
と、 を具備する ことを特徴とする食器洗浄機。1. A cleaning solution and a rinse used in a main cleaning step.
A washing tank using the rinsing water used in the process as the washing liquid
And by circulating and using the washing solution in the washing tank.
While repeatedly performing the main cleaning process a plurality of times,
Using rinsing water supplied by others during the main cleaning step
The object to be cleaned is cleaned by repeating the rinsing step.
A dishwasher , comprising an opening provided at a bottom of the washing tank for draining a washing liquid.
When opening and closing means for opening and closing the opening, the same amount of the cleaning liquid and the rinsing water supplied from the other cleaning dregs
Opening and closing control means for controlling the opening and closing means to drain water from
And a dishwasher comprising:
することにより複数回に亘って主洗浄行程を繰り返し行
い、かつ、この主洗浄行程の間にすすぎ水を用いたすす
ぎ行程を繰り返し行うことにより洗浄対象物を洗浄する
食器洗浄機であって、 洗浄液の排水用に洗浄糟の底部に設けられた開口部と、 該開口部を開閉する開閉手段と、 前記主洗浄行程とすすぎ行程との間に開口部を開状態と
するように開閉手段を制御する開閉制御手段と、 を具備する ことを特徴とする食器洗浄機。2. The circulation of the washing liquid stored in the washing tank.
The main cleaning process is repeated several times
Rinsing with rinsing water during the main cleaning process
Cleaning objects by repeatedly performing the cutting process
A dishwasher , comprising: an opening provided at a bottom of a washing tank for draining a washing liquid; opening / closing means for opening and closing the opening; and an opening in an open state between the main washing step and the rinsing step. When
A dishwasher , comprising: opening and closing control means for controlling the opening and closing means so as to perform the operation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4061890A JP2986999B2 (en) | 1992-03-18 | 1992-03-18 | Dishwasher |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4061890A JP2986999B2 (en) | 1992-03-18 | 1992-03-18 | Dishwasher |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH05261053A JPH05261053A (en) | 1993-10-12 |
JP2986999B2 true JP2986999B2 (en) | 1999-12-06 |
Family
ID=13184198
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4061890A Expired - Lifetime JP2986999B2 (en) | 1992-03-18 | 1992-03-18 | Dishwasher |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2986999B2 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4680675B2 (en) * | 2005-05-19 | 2011-05-11 | ホシザキ電機株式会社 | Dishwasher |
JP5348741B2 (en) * | 2008-07-09 | 2013-11-20 | ホシザキ電機株式会社 | Dishwasher |
US7871521B2 (en) * | 2008-10-07 | 2011-01-18 | Ecolab Inc. | Zero waste reverse osmosis system and downstream rinsing |
JP5765973B2 (en) * | 2011-03-02 | 2015-08-19 | ホシザキ電機株式会社 | Dishwasher |
JP5642854B2 (en) * | 2013-08-09 | 2014-12-17 | ホシザキ電機株式会社 | Dishwasher |
ITUB20152349A1 (en) * | 2015-07-21 | 2017-01-21 | Seko Spa | SELF-CALIBRATED DOSAGE METHOD |
ITUB20152337A1 (en) * | 2015-07-21 | 2017-01-21 | Seko Spa | AUTOMATED DOSAGE METHOD |
-
1992
- 1992-03-18 JP JP4061890A patent/JP2986999B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
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