JP4653794B2 - dishwasher - Google Patents
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- JP4653794B2 JP4653794B2 JP2007264964A JP2007264964A JP4653794B2 JP 4653794 B2 JP4653794 B2 JP 4653794B2 JP 2007264964 A JP2007264964 A JP 2007264964A JP 2007264964 A JP2007264964 A JP 2007264964A JP 4653794 B2 JP4653794 B2 JP 4653794B2
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Description
本発明は、食器類の洗浄を行う食器洗い機に関し、さらに詳しくは、前部に開口部を有する食器洗い機本体と、この食器洗い機本体に対し引き出し自在に設けられ、上方に開口を有する洗浄槽と、この洗浄槽に収容され、食器等の被洗浄物を載置する食器かごと、洗浄水を加圧する洗浄ポンプと、この洗浄ポンプにより加圧された洗浄水を供給されて噴射させる洗浄ノズルとを備えた食器洗い機に関するものである。 The present invention relates to a dishwasher for washing dishes, and more specifically, a dishwasher body having an opening at the front, and a washing tub provided so as to be freely drawn out from the dishwasher body and having an opening upward. A dish pump housed in the washing tank, on which an object to be cleaned such as dishware is placed, a washing pump for pressurizing washing water, and a washing nozzle for supplying the washing water pressurized by the washing pump and ejecting the washing water It is related with the dishwasher provided with.
この種の食器洗い機は所謂ビルトインタイプと呼ばれ、食器洗い機本体は、下記特許文献1に見られるように単独の筐体に構成したり、下記特許文献2に見られるように流し台などの厨房家具に一体的に組み込むものとして提供されている。 This type of dishwasher is called a so-called built-in type, and the dishwasher body is configured in a single casing as seen in Patent Document 1 below, or kitchen furniture such as a sink as seen in Patent Document 2 below. Is provided as an integral part of the system.
いずれにしても、このタイプの食器洗い機は、載置型に比べて容量を大きくしやすい特徴があり、一度に多量の食器を洗うのに適している。食器の洗浄は、洗浄ポンプで加圧された洗浄水を、特許文献1、2に見られるように洗浄槽の底部のほぼ中央に回転中心を持つ大型の回転洗浄ノズルから回転を伴い広域に噴射することで行われている。洗浄水の噴射条件は一般に、食器の配置向きなどとの関係を配慮して最適に設定される。
しかし、このような食器洗い機は、近時、省エネやスピーディー処理のために節水や洗浄時間の短縮が望まれるなか、食器かごは食器の出し入れに自由度を確保する上で、食器などの載置条件を前記最適設定に見合うように規制し切れなかったり、処理量に差があったりし、食器側の洗浄条件がその時々で異なること等が影響して、最適な洗浄結果が常時保証し難くなってきている。 However, these types of dishwashers have recently been required to save water and reduce washing time for energy saving and speedy processing. It is difficult to guarantee the optimal cleaning results at all times due to the fact that the conditions cannot be fully regulated to match the optimal settings, the processing amount varies, and the cleaning conditions on the tableware vary from time to time. It has become to.
これに対応するには、洗浄ノズル数を増やして洗浄能力を高めることが考えられる。しかし、そのために配管数や配管距離、通路長さが増大すると、大型化、重量化、製品コスト上昇の原因になる上に、洗浄ポンプの駆動、駆動停止に対する応答性が低下し、また、使用水量の増大によるランニングコストの増大、圧力損失の増大のために洗浄効率が低下して洗浄効果を高めにくいものとなる。 To cope with this, it is conceivable to increase the cleaning capability by increasing the number of cleaning nozzles. However, if the number of pipes, pipe distance, and passage length increase for that purpose, the size, weight, and product cost will increase. In addition, the responsiveness to driving and stopping of the cleaning pump will decrease, and Due to an increase in running cost due to an increase in the amount of water and an increase in pressure loss, the cleaning efficiency is lowered and it becomes difficult to increase the cleaning effect.
本発明の目的は、前部開口からの引き出し式の洗浄槽を持って、簡単かつ短い配管、通路構造にて洗浄ノズル数を増大し、大型化、重量化、製品コスト、ランニングコスト上昇の原因にならず、分水切換えの応答性がよく、圧力損失による洗浄効率の低下を防止して洗浄効果を十分に高められる食器洗い機を提供することにある。 The object of the present invention is to have a pull-out type washing tank from the front opening, increase the number of washing nozzles with simple and short piping and passage structure, and cause increase in size, weight, product cost and running cost Accordingly, it is an object of the present invention to provide a dishwasher that has good responsiveness to water separation switching, prevents a reduction in washing efficiency due to pressure loss, and can sufficiently enhance the washing effect.
上記のような目的を達成するために、本発明の食器洗い機は、前部に開口部を有する食器洗い機本体と、この食器洗い機本体に対し引き出し自在に設けられ、上方に開口を有する洗浄槽と、この洗浄槽に収容され、食器等の被洗浄物を載置する食器かごと、洗浄水を加圧する洗浄ポンプと、この洗浄ポンプにより加圧された洗浄水を、前記洗浄槽の底部のほぼ中央に回転中心が位置する回転洗浄ノズルの1つまたは複数の吐出経路と、前記洗浄槽の四周壁の後部壁、両側の側壁の一方、前部壁の少なくとも1つに設けられた非回転洗浄ノズルの1つまたは複数の吐出経路とに選択的に供給する分水手段とを備え、前記分水 手段は、前記洗浄ポンプに連通する流入部をなす弁室と、この弁室に接続されて前記複数の吐出経路と連通する複数の流出路を持った分水通路と、前記弁室内に設けられて流入する洗浄水を前記複数の流出路に選択的に分水させるように切換える弁体とで構成され、前記非回転洗浄ノズルは、前記洗浄槽の底部付近の分水手段との接続端からの単独の立ち上がり部、前記接続端からの水平部を経た立ち上がり部、前記接続端からの立ち上がり部を経た水平部、の少なくともいずれかを備え、前記洗浄ポンプは、前記洗浄槽の四周壁の後部壁、両側の側壁の一方、前部壁のうちの、1つの、四周方向一方に寄った位置に沿って設け、前記弁室は、前記分水手段において、回転洗浄ノズルにおけるその回転中心と同心の接続口に対応する流出路を接続して回転自在に支持する回転支持部と、前記非回転洗浄ノズルの接続端に対応する流出路を接続する流出口と、の間に位置し、前記流出口は、前記洗浄ポンプが沿う前記四周壁の1つに前記一方寄りの側で隣接する隣接壁の近傍に位置させたものとしている。 In order to achieve the above object, a dishwasher of the present invention includes a dishwasher body having an opening at a front portion thereof, a washing tub provided so as to be freely drawn out from the dishwasher body, and having an opening upward. , A tableware container in which objects to be cleaned such as dishes are placed, a cleaning pump for pressurizing the cleaning water, and the cleaning water pressurized by the cleaning pump are disposed almost at the bottom of the cleaning tank. Non-rotational cleaning provided on at least one of one or a plurality of discharge paths of the rotary cleaning nozzle having the center of rotation located in the center, the rear wall of the four peripheral walls of the cleaning tank, the side walls on both sides, and the front wall A diversion means for selectively supplying to one or a plurality of discharge paths of the nozzle, and the diversion means is connected to the valve chamber, which forms an inflow portion communicating with the cleaning pump, and the valve chamber. A plurality of communicating with the plurality of discharge paths; A diversion passage having a discharge path, and a valve body that is provided in the valve chamber and selectively switches the wash water that flows in to the plurality of outflow paths, and the non-rotation washing nozzle includes: At least one of a stand-up part from a connection end with a water distribution means near the bottom of the washing tank, a stand-up part through a horizontal part from the connection end, and a horizontal part through a stand-up part from the connection end. The cleaning pump is provided along the position of one of the rear wall of the four-circumferential wall of the cleaning tank, one of the side walls on both sides, one of the front walls, close to one of the four-circumferential directions, In the water diverting means, a rotation support portion that supports and rotatably supports an outflow path corresponding to a connection port concentric with the rotation center of the rotary cleaning nozzle, and an outflow path corresponding to the connection end of the non-rotational cleaning nozzle Between the outlet and connecting The outlet is located in the vicinity of an adjacent wall adjacent to one of the four peripheral walls along the cleaning pump on the side closer to the one side.
このような構成によれば、食器洗い機本体の洗浄槽への給水後に洗浄ポンプを駆動すると、洗浄ポンプは洗浄槽内の洗浄水を吸い込み加圧して分水手段へ送り出し、分水手段は回転洗浄ノズルの1つまたは複数の吐出経路と、非回転洗浄ノズルの1つまたは複数の吐出経路とに向け同時またはおよび異時に分水させて選択的に供給するので、従来通りの洗浄槽の底部のほぼ中央部に回転中心を有して配置した回転洗浄ノズルと、洗浄槽の四周壁の後部壁、両側の側壁の一方、前部壁の少なくとも1つに新規に設けた非回転洗浄ノズルとの働きを選択的に複合させ、またはこれに、回転、非回転洗浄ノズルを選択的に働かせるときの、それらに備えられることのある複数の吐出経路を選択的に働かせることをも複合させて、洗浄水を複数のノズル位置から多様なパターンで、洗浄槽内に噴出させて食器かごに載置された被洗浄物を洗浄することができる。 According to such a configuration, when the washing pump is driven after supplying water to the washing tub of the dishwasher main body, the washing pump sucks and pressurizes the washing water in the washing tub and sends it to the water dividing means. Since water is selectively supplied to one or a plurality of discharge paths of the nozzle and one or a plurality of discharge paths of the non-rotating cleaning nozzle at the same time or at different times, the bottom of the conventional cleaning tank is A rotating cleaning nozzle arranged with a rotation center at a substantially central portion, and a non-rotating cleaning nozzle newly provided on at least one of the rear wall and the side walls on both sides of the four peripheral walls of the cleaning tank. Washing by selectively combining the functions, or by selectively combining multiple discharge paths that may be provided when selectively rotating and non-rotating cleaning nozzles. Multiple nods of water In various patterns from the position, is ejected into the cleaning tank can be cleaned cleaning object placed on the dishes basket.
しかも、洗浄ポンプは、洗浄槽の四周壁の後部壁、両側の側壁の一方、前部壁のうちの、1つの、四周方向一方に寄った位置に沿って位置し、分水手段において、回転洗浄ノズルを回転自在に支持する回転支持部が洗浄槽の底部のほぼ中央に位置し、非回転洗浄ノズルの接続端に接続する流出口が、洗浄ポンプが沿う前記四周壁の1つに前記周方向一方寄りの側で隣接する隣接壁の近傍に位置しているので、洗浄ポンプ、分水手段およびこれの回転支持部と流出口が、洗浄槽の底部のほぼ中央部と1つのコーナとを結ぶ対角線を持ったほぼ1/4領域以内に、配置できる上、回転支持部および流出口の間に位置する弁室は、前記1/4領域内の回転支持部よりもさらに近い位置から洗浄ポンプに接続できるし、回転支持部および流出口は、前記1/4領域内にて回転洗浄ノズルの接続口および非回転洗浄ノズルの接続端に接続して、洗浄槽の底部のほぼ中央に回転中心が位置する回転洗浄ノズルと、洗浄槽の四周壁の少なくとも1つに設けられる非回転洗浄ノズルに対し、洗浄ポンプからの短い配管、通路長にて、洗浄水を供給することができる。 In addition, the cleaning pump is located along one of the rear walls of the four peripheral walls of the cleaning tank, one of the side walls on either side, and one of the front walls, which is close to one of the four peripheral directions. A rotary support portion that rotatably supports the cleaning nozzle is positioned at substantially the center of the bottom of the cleaning tank, and an outlet connected to the connection end of the non-rotating cleaning nozzle is connected to one of the four peripheral walls along the cleaning pump. Since it is located in the vicinity of the adjacent wall adjacent to one side in the direction, the washing pump, the water diversion means, and the rotation support portion and the outlet of the washing tank are connected to the central portion of the washing tank and one corner. Further, the valve chamber located between the rotation support portion and the outflow port can be disposed within a substantially 1/4 region having a diagonal line to connect the washing pump from a position closer to the rotation support portion in the 1/4 region. And can be connected to the rotation support and outlet before Connected to the connection port of the rotary cleaning nozzle and the connection end of the non-rotational cleaning nozzle within the quarter region, the rotary cleaning nozzle having the center of rotation located substantially at the center of the bottom of the cleaning tank, and the four circumferential walls of the cleaning tank Cleaning water can be supplied to at least one non-rotating cleaning nozzle with a short pipe and passage length from the cleaning pump.
また、前記回転支持部、前記弁室、前記流出口は、ほぼ一直線上に並び、前記流出口は、前記隣接壁の前記洗浄ポンプ側寄りに位置し、前記非回転洗浄ノズルの接続端からの立ち上がり部を経た水平部は、少なくとも前記四周壁の前記洗浄ポンプが沿う1つに設け、少なくとも水平部に洗浄水を噴出する噴射口を設けたものとすることができる。 In addition, the rotation support portion, the valve chamber, and the outflow port are arranged substantially in a straight line, and the outflow port is located closer to the cleaning pump side of the adjacent wall, and is connected to the connection end of the non-rotating cleaning nozzle. The horizontal portion that has passed through the rising portion may be provided at least along one of the four circumferential walls along which the cleaning pump is provided, and at least the horizontal portion may be provided with an injection port that ejects cleaning water.
このような構成によれば、回転支持部、前記弁室、前記流出口が、ほぼ一直線上に並ぶことにより、弁室から回転支持部に向かう流出路と、流出口に向かう流出路とが、互いに逆向きに延び、それぞれの流出路が複数ずつあっても、弁室の平面視した周方向の半周ずつを利用して、弁室まわりの拡張なしに必要な範囲で個別に単純経路で連通さて弁体による流出路の切換えを受けられる。また、流出口が洗浄ポンプ側に寄った分だけ、洗浄ポンプ、分水手段およびこれの回転支持部と流出口との配置が、前記1/4領域未満に小さくなり、弁室の洗浄ポンプとの接続距離が短縮するし、非回転洗浄ノズルの接続端からの立ち上がり部を経た水平部が、少なくとも前記四周壁の前記洗浄ポンプが沿う1つに設けら れる場合の接続距離も短縮し、水平部が四周壁の2つ、3つ、4つに延長される場合や、立ち上がり部から周方向両側に分岐する場合にも対応できる。 According to such a configuration, the rotation support portion, the valve chamber, and the outflow port are arranged substantially in a straight line, so that the outflow path toward the rotation support portion from the valve chamber and the outflow path toward the outflow port are Even if there are multiple outflow passages, they communicate with each other through simple paths within the required range without expansion around the valve chamber, even if there are multiple outflow paths. Now, the outflow path can be switched by the valve body. In addition, the arrangement of the cleaning pump, the water diversion means, and the rotation support portion thereof and the outflow outlet is reduced to less than the ¼ region by the amount the outlet is close to the cleaning pump side. The connection distance is also reduced when the horizontal portion that has risen from the connection end of the non-rotating cleaning nozzle is provided at least along one of the four peripheral walls along the cleaning pump. The case where the portion is extended to two, three, or four of the four circumferential walls, or the case where the portion branches from the rising portion to both sides in the circumferential direction can also be handled.
また、前記回転支持部と、回転洗浄ノズルの接続口とは、洗浄槽の底部よりも上で垂直方向に接続しているようにすることができる。 Further, the rotation support portion and the connection port of the rotary cleaning nozzle can be connected in the vertical direction above the bottom portion of the cleaning tank.
このような構成では、回転洗浄ノズルはその接続口を洗浄槽の底部の上で、回転支持部に垂直方向から他に邪魔されることなく接続することができる。 In such a configuration, the rotary cleaning nozzle can be connected at its connection port on the bottom of the cleaning tank to the rotary support portion from the vertical direction without being obstructed elsewhere.
また、前記流出口と、前記立ち上がり部の接続端とは、洗浄槽の底部よりも上で垂直方向に接続しているようにすることができる。 The outlet and the connection end of the rising portion may be connected in the vertical direction above the bottom of the cleaning tank.
このような構成では、非回転洗浄ノズルはその接続端を洗浄槽の底部の上で、流出口に垂直方向から他に邪魔されることなく接続することができる。 In such a configuration, the non-rotating cleaning nozzle can be connected at the connection end on the bottom of the cleaning tank to the outflow port from the vertical direction without being obstructed otherwise.
本発明の食器洗い機によれば、洗浄槽の底部のほぼ中央部に回転中心を有した回転洗浄ノズルと、洗浄槽の四周壁の少なくとも1つに設けた非回転洗浄ノズルとに、それぞれ有した1つまたは複数の吐出経路に、洗浄水を選択的に切換え供給することによる、回転、非回転洗浄ノズルの働きの選択的な複合により、または回転、非回転洗浄ノズルに備えられることのある複数の吐出経路の働きの選択的な複合が加わって、洗浄水を複数のノズル位置から多様なパターンで洗浄槽内に噴出させることができ、洗浄水の総噴射域、総噴射密度、洗浄水の噴射向きの多様性が高まるので、より死角のない噴射によって洗浄効率を高められるし、互いに干渉し合う噴射モードどうしは異時となるように選択的に実行すれ洗浄効果は低減しないし、噴射の無駄が省ける。それには、回転洗浄ノズルによる洗浄を最優先して、予想され、または食器配置などの仕様の違いによって傾向が生じる洗浄のウイークポイントに対応した非回転洗浄ノズルを補助的に採用するのが好適である。しかも、複数の吐出経路への分水を異時に行う割合に応じて循環に必要な総水量を抑えてランニングコストも低減できるし圧力損失もより低減する。 According to the dishwasher of the present invention, the rotary washing nozzle having the center of rotation at the substantially central portion of the bottom of the washing tank and the non-rotating washing nozzle provided on at least one of the four circumferential walls of the washing tank are respectively provided. A plurality of nozzles that may be provided in a rotary or non-rotating cleaning nozzle by selectively combining the operation of rotating and non-rotating cleaning nozzles by selectively supplying cleaning water to one or more discharge paths. With the addition of a selective combination of the functions of the discharge path, the wash water can be sprayed into the wash tank in various patterns from multiple nozzle positions. The total wash water injection area, total jet density, and wash water Since the variety of injection directions increases, the cleaning efficiency can be improved by injection with less blind spots, and the injection modes that interfere with each other are selectively executed so that the cleaning effect is not reduced and the injection is not reduced. Waste can be omitted. For this purpose, it is preferable to use a non-rotating washing nozzle as a supplementary measure for the washing week point where the washing with the rotating washing nozzle is given top priority and is expected or tends to be caused by the difference in specifications such as tableware arrangement. is there. Moreover, the running water can be reduced by reducing the total amount of water necessary for the circulation according to the ratio at which the water is divided into the plurality of discharge paths at different times, and the pressure loss is further reduced.
しかも、洗浄ポンプ、洗浄水の選択的供給を行う分水手段およびこれの回転支持部と流出口が、洗浄槽の底部の1つのコーナ側となるほぼ1/4領域以内に、配置できて配管構造が簡単でかさ張らず食器洗い機全体が小型化、軽量化、低コスト化する。また、弁室は近い位置から洗浄ポンプに接続し、回転支持部および流出口は、前記1/4領域内にて回転洗浄ノズルおよび非回転洗浄ノズルに接続するので、短い接続通路で、前記短い配管と併せ、洗浄ポンプの駆動、駆動停止に対する応答性を高めるのに併せて、圧力損失をも抑えられ、洗浄効率の向上、洗浄時間の短縮に有利なものとなる。 Moreover, the cleaning pump, the water distribution means for selectively supplying the cleaning water, and the rotation support portion and the outlet of the cleaning pump can be arranged within approximately one quarter of the corner of the bottom of the cleaning tank. The structure is simple and not bulky, and the entire dishwasher is reduced in size, weight, and cost. Further, the valve chamber is connected to the cleaning pump from a close position, and the rotation support portion and the outlet are connected to the rotating cleaning nozzle and the non-rotating cleaning nozzle in the ¼ region. Together with the piping, the responsiveness to driving and stopping of the cleaning pump is enhanced, and pressure loss is also suppressed, which is advantageous for improving the cleaning efficiency and shortening the cleaning time.
以下、本発明の実施の形態に係る食器洗い機について図1〜図10を参照しながら説明し、本発明の理解に供する。なお、以下の説明は本発明の具体例であって特許請求の範囲の記載内容を限定するものではない。 Hereinafter, a dishwasher according to an embodiment of the present invention will be described with reference to FIGS. 1 to 10 for understanding of the present invention. Note that the following description is a specific example of the present invention and does not limit the contents described in the scope of claims.
図1に模式的に示した、本実施の形態における食器洗浄機100は、前部に開口部1を有する食器洗い機本体2と、この食器洗い機本体2に対し引き出し自在に設けられ、上方に開口3を有する洗浄槽4と、この洗浄槽4に収容され、食器等の被洗浄物を載置する食器かご6、7などと、洗浄方向の駆動によって洗浄水を加圧して洗浄に供し、または排水方向の駆動によって排水を行う洗浄・排水ポンプ8と、この洗浄・排水ポンプ8により加圧された洗浄水を、洗浄槽4の底部4aのほぼ中央に回転中心11が位置する回転洗浄ノズル12の1つまたは複数の吐出経路と、洗浄槽4の四周壁4bの後部壁4b1、両側の 側壁4b2、4b3の一方、前部壁4b4の少なくとも1つに設けられた非回転洗浄ノズル13の1つまたは複数の吐出経路とに選択的に供給する分水手段14とを備えている。なお、洗浄・排水ポンプ8に代えて、洗浄と排水共に専用のポンプを採用することもできる。これにより、洗浄のための配管およびポンプの設置と、排水のための配管とポンプの配置が個別に最適設計できる。 A dishwasher 100 according to the present embodiment schematically shown in FIG. 1 is provided with a dishwasher main body 2 having an opening 1 at a front portion thereof, and is freely detachable from the dishwasher main body 2, and opens upward. 3 and a washing tub 4 accommodated in the washing tub 4 and placed on an object to be washed such as tableware, and the like, and the washing water is pressurized by driving in the washing direction and used for washing, or A cleaning / drainage pump 8 that drains by driving in the direction of drainage, and a rotary cleaning nozzle 12 having a rotation center 11 positioned at the center of the bottom 4a of the cleaning tank 4 is washed with the cleaning water pressurized by the cleaning / drainage pump 8. 1 of the non-rotating cleaning nozzle 13 provided on at least one of the one or a plurality of discharge paths, the rear wall 4b1 of the four peripheral walls 4b of the cleaning tank 4, the side walls 4b2, 4b3 on both sides, and the front wall 4b4. One or more vomiting And a selectively supplying water diversion unit 14 on the route. Instead of the cleaning / drainage pump 8, a dedicated pump for cleaning and draining may be employed. Thereby, the installation of piping and pumps for cleaning and the arrangement of piping and pumps for drainage can be optimally designed individually.
これにより、食器洗い機本体2の洗浄槽4への給水後に洗浄・排水ポンプ8を洗浄方向に駆動すると、洗浄・排水ポンプ8は洗浄槽4内の洗浄水を吸い込み加圧して分水手段14へ送り出す。分水手段14は回転洗浄ノズル12の1つまたは複数の吐出経路と、非回転洗浄ノズル13の1つまたは複数の吐出経路とに向け同時またはおよび異時に分水させて選択的に供給するので、従来通りの洗浄槽4の底部4aのほぼ中央部に回転中心11を有して配置した回転洗浄ノズル12と、洗浄槽4の四周壁4bの後部壁4b1、両側の側壁4b2、4b3の一方、前部壁4b4の少なくとも1つに新規に設けた非回転洗浄ノズル13との働きを選択的に複合させ、またはこれに、回転、非回転洗浄ノズル12、13を選択的に働かせるときの、それらに備えられることのある複数の吐出経路を選択的に働かせることをも複合させて、洗浄水を洗浄槽4の底部4aおよび四周壁4bにおける複数のノズル位置から多様なパターンで、洗浄槽4内に噴出させて食器かご6、7などに載置された被洗浄物を洗浄することができる。 As a result, when the washing / drainage pump 8 is driven in the washing direction after supplying water to the washing tub 4 of the dishwasher main body 2, the washing / drainage pump 8 sucks and pressurizes the washing water in the washing tub 4 and supplies it to the water distribution means 14. Send it out. Since the water dividing means 14 selectively supplies water to one or a plurality of discharge paths of the rotary cleaning nozzle 12 and one or a plurality of discharge paths of the non-rotary cleaning nozzle 13 simultaneously or at different times. The conventional rotary cleaning nozzle 12 is disposed at the center of the bottom 4a of the cleaning tank 4 with the rotation center 11, the rear wall 4b1 of the four peripheral walls 4b of the cleaning tank 4, and one of the side walls 4b2, 4b3 on both sides. , When selectively working with at least one of the front wall 4b4 and the non-rotating cleaning nozzle 13 newly provided, or when selectively operating the rotating and non-rotating cleaning nozzles 12 and 13, In combination with selectively working a plurality of discharge paths that may be provided in the cleaning tank, the cleaning water is washed in various patterns from a plurality of nozzle positions on the bottom 4a and the four peripheral walls 4b of the cleaning tank 4 in various patterns. It can is jetted to clean the cleaning object placed on the tableware basket 6,7 within.
この結果、洗浄槽4の底部4aのほぼ中央部に回転中心11を有した回転洗浄ノズル12と、洗浄槽4の四周壁4bの少なくとも1つに設けた非回転洗浄ノズル13とに、それぞれ有した1つまたは複数有した吐出経路に、洗浄水を選択的に切換え供給することによる、回転、非回転洗浄ノズルの働きの選択的な複合により、または回転、非回転洗浄ノズル12、13に備えられることのある複数の吐出経路の働きの選択的な複合が加わって、洗浄水を複数のノズル位置から多様なパターンで洗浄槽4内に噴出させることができ、洗浄水の総噴射域、総噴射密度、洗浄水の噴射向きの多様性が高まるので、より死角のない噴射によって洗浄効率を高められるし、互いに干渉し合う噴射モードどうしは異時となるように選択的に実行すれ洗浄効果は低減しないし、噴射の無駄が省ける。それには、回転洗浄ノズルによる洗浄を最優先して、予想され、または食器配置などの仕様の違いによって傾向が生じる洗浄のウイークポイントに対応した非回転洗浄ノズルを補助的に採用するのが好適である。しかも、複数の吐出経路への分水を異時に行う割合に応じて循環に必要な総水量を抑えてランニングコストも低減できるし圧力損失もより低減する。 As a result, the rotary cleaning nozzle 12 having the rotation center 11 at the substantially central portion of the bottom 4a of the cleaning tank 4 and the non-rotational cleaning nozzle 13 provided on at least one of the four peripheral walls 4b of the cleaning tank 4 are respectively present. By selectively switching and supplying the cleaning water to one or a plurality of discharge paths, the rotary and non-rotating cleaning nozzles 12 and 13 are prepared by selectively combining the functions of the rotating and non-rotating cleaning nozzles. In addition, a selective combination of the functions of a plurality of discharge paths that may be generated can be added, so that the cleaning water can be ejected into the cleaning tank 4 from a plurality of nozzle positions in various patterns. Since the diversity of spray density and wash water spray direction increases, the cleaning efficiency can be increased by spraying with no blind spots, and the spray modes that interfere with each other can be selectively executed so that they are different times. Is do not reduce, waste can be saved of the injection. For this purpose, it is preferable to use a non-rotating washing nozzle as a supplementary measure for the washing week point where the washing with the rotating washing nozzle is given top priority and is expected or tends to be caused by the difference in specifications such as tableware arrangement. is there. Moreover, the running water can be reduced by reducing the total amount of water necessary for the circulation according to the ratio at which the water is divided into the plurality of discharge paths at different times, and the pressure loss is further reduced.
なお、洗浄後、洗浄・排水ポンプ8を排水方向に回転させると洗浄槽4内の洗浄水の排水に伴い分水手段14を通じた回転洗浄ノズル12や非回転洗浄ノズル13からの残水を排水してドレン処理をする。 After cleaning, when the cleaning / drainage pump 8 is rotated in the direction of drainage, residual water from the rotary cleaning nozzle 12 and the non-rotating cleaning nozzle 13 is drained through the water distribution means 14 along with the drainage of the cleaning water in the cleaning tank 4. Then drain.
また、洗浄槽4の洗浄・排水ポンプ8が沿う四周壁4bの1つが、後部壁4b1や側壁4b2、4b3などであって、家屋の外壁や仕切り壁などの配管引込面に対向させる構成によって引込み位置から洗浄・排水ポンプ8までの配管長さが短縮するし、後部壁4b1、側壁4b2、4b3、前部壁4b4での洗浄・排水ポンプ8の四周方向偏り側を前記引込位置に近い側とすることで前記配管長さはさらに短くなる。また、洗浄・排水ポンプ8は側壁4b2、4b3の前部寄りや、前部壁に沿って設けると、洗浄・排水ポンプ8が食器洗い機本体2の開口部1に近くなるので、その分洗浄・排水ポンプ8の設置やメンテナンスの作業が容易になる。 In addition, one of the four peripheral walls 4b along which the cleaning / drainage pump 8 of the cleaning tank 4 extends is the rear wall 4b1, the side walls 4b2, 4b3, and the like, and is drawn in by a configuration facing the pipe drawing surface such as the outer wall or partition wall of the house. The piping length from the position to the cleaning / drainage pump 8 is shortened, and the four-circumferentially biased side of the cleaning / drainage pump 8 at the rear wall 4b1, the side walls 4b2, 4b3, and the front wall 4b4 is close to the retracting position. By doing so, the pipe length is further shortened. Further, if the washing / drainage pump 8 is provided near the front of the side walls 4b2, 4b3 or along the front wall, the washing / drainage pump 8 is close to the opening 1 of the dishwasher main body 2. The installation and maintenance work of the drainage pump 8 is facilitated.
これらを実行するのに本実施の形態において、食器洗い機本体2は、上記の他、洗浄槽4の底部4aの回転洗浄ノズル12に至らない範囲を貯水部4eとし、この貯水部4eに給水するための給水弁23、貯水部4eに配置したヒータ25、貯水部4eからの排水を図る排水用凹部4e1、洗浄槽4内に温風を送り込む食器乾燥用のファンヒータ27、排水用凹部4e1に接続された水位センサ28などを備え、これらを制御手段31により適時に駆動し、洗い、すすぎおよび乾燥の各行程を逐次制御する。なお、本発明に係る食器洗い機において、乾燥行程は必須ではない。また、分水手段14は次に詳述するが、洗浄・排水ポンプ8の駆動、駆動停止による洗浄水の加圧、加圧解除に応動して、洗浄水を選択 的に供給する弁体32を内蔵しており、制御手段31による直接の制御は不要になっている。しかし、動作や制御の方式は特に問うものではなく、例えば、モータなど専用のアクチュエータによって切換え駆動してもよい。 In order to execute these, in the present embodiment, the dishwasher main body 2 uses the water storage part 4e as an area not reaching the rotary cleaning nozzle 12 of the bottom part 4a of the cleaning tank 4, and supplies water to the water storage part 4e. A water supply valve 23, a heater 25 disposed in the water reservoir 4e, a drain recess 4e1 for draining water from the water reservoir 4e, a dish heater fan 27 for sending warm air into the cleaning tank 4, and a drain recess 4e1 A connected water level sensor 28 and the like are provided, and these are driven in a timely manner by the control means 31 to sequentially control each step of washing, rinsing and drying. In the dishwasher according to the present invention, the drying process is not essential. Further, as will be described in detail below, the water distribution means 14 is a valve body 32 that selectively supplies cleaning water in response to driving of the cleaning / drainage pump 8, pressurization of the cleaning water by driving stoppage, and release of pressurization. The direct control by the control means 31 is unnecessary. However, the operation and control methods are not particularly limited, and for example, they may be switched and driven by a dedicated actuator such as a motor.
本実施の形態の食器洗い機本体2が備える分水手段14は、図2〜図5に示してあり、洗浄・排水ポンプ8に連通する流入部をなす弁室133と、この弁室133の上に設けられて既述した複数の吐出経路、図示例では、回転洗浄ノズル12に設けた図2、図4、図6に示した2つの吐出経路34、35と、非回転洗浄ノズル13の吐出経路36に連通する複数の流出路36、37と、流出路38と、弁室133内に設けられて流入する洗浄水を複数の流出路36、37、38に選択的に分水させるように切換える前記弁体32とで構成されている。また、非回転洗浄ノズル13は、洗浄槽4の底部4a付近の分水手段14との接続端13aからの図1に示すような単独の立ち上がり部13bのみ、前記接続端13aからの図示していない水平部を経た立ち上がり部、前記接続端13aからの図1に例示するように立ち上がり部13bを経た水平部13c、の少なくともいずれかを備えたものとする。併せ、洗浄・排水ポンプ8は図7に一例を示してあるが、洗浄槽4の四周壁4bの後部壁4b1、両側の側壁4b2、4b3の一方、前部壁4b4のうちの1つの、具体例では後部壁4b1の、四周方向一方、具体例では後部に向かって左側に寄った位置に沿って設け、弁室133は、分水手段14において、回転洗浄ノズル12におけるその回転中心11と同心の接続口12aに対応する流出路、具体的には流出路36、37をそれらの流出口36a、37aにて接続し回転自在に支持する回転支持部41と、非回転洗浄ノズル13の接続端13aに対応する流出路、具体的には流出路38を接続する流出口42と、の間の位置で各流出路36、37、38に接続するとともに、流出口36a、37aは、洗浄・排水ポンプ8が沿う前記四周壁4bの1つに、具体的には後部壁4b1に前記一方寄りの側で隣接する隣接壁、具体的には後部に向かって左側の側壁4b3の近傍に位置させたものとしている。 The water diversion means 14 provided in the dishwasher main body 2 of the present embodiment is shown in FIGS. 2 to 5, and includes a valve chamber 133 that forms an inflow portion that communicates with the washing / drainage pump 8, and an upper portion of the valve chamber 133. In the illustrated example, the two discharge paths 34 and 35 shown in FIGS. 2, 4, and 6 provided in the rotary cleaning nozzle 12, and the non-rotary cleaning nozzle 13 are discharged. A plurality of outflow passages 36 and 37 communicating with the passage 36, an outflow passage 38, and wash water that is provided in the valve chamber 133 and that flows in is selectively divided into the plurality of outflow passages 36, 37, and 38. And the valve body 32 to be switched. Further, the non-rotating cleaning nozzle 13 is shown only from the connection end 13a as shown in FIG. 1 from the connection end 13a to the water diversion means 14 near the bottom 4a of the cleaning tank 4 as shown in FIG. It is assumed that at least one of a rising portion passing through a horizontal portion and a horizontal portion 13c passing through a rising portion 13b as illustrated in FIG. 1 from the connection end 13a is provided. In addition, an example of the cleaning / drainage pump 8 is shown in FIG. 7, but one of the rear wall 4b1, the side wall 4b2, 4b3 on both sides of the four peripheral walls 4b of the cleaning tank 4, and one of the front walls 4b4, In the example, the rear wall 4b1 is provided along one side in the four circumferential directions, in the specific example, along a position closer to the left side toward the rear, and the valve chamber 133 is concentric with the rotation center 11 of the rotary cleaning nozzle 12 in the water dividing means 14. The outlet port corresponding to the connecting port 12a, specifically, the rotating support part 41 that connects the outlet channels 36 and 37 at the outlet ports 36a and 37a and rotatably supports them, and the connection end of the non-rotating washing nozzle 13 13a is connected to each outflow channel 36, 37, 38 at a position between the outflow channel corresponding to 13a, specifically, the outflow channel 42 connecting the outflow channel 38, and the outflow channels 36a, 37a are used for washing and draining. The four along the pump 8 One of the walls 4b, specifically it is assumed in the adjacent wall, concrete adjacent the side of the one close to the rear wall 4b1 which is positioned in the vicinity of the left side wall 4b3 in the rear.
これにより、洗浄・排水ポンプ8は、洗浄槽4の四周壁4bの後部壁4b1、両側の側壁4b2、4b3の一方、前部壁4b4のうちの、1つの、四周方向一方に寄った位置に沿って位置し、分水手段14において、回転洗浄ノズル12を回転自在に支持する回転支持部41が洗浄槽4の底部4aのほぼ中央に位置し、非回転洗浄ノズル13の接続端13aに接続する流出口42が、洗浄・排水ポンプ8が沿う前記四周壁4bの1つである例えば後部壁4b1に前記周方向一方寄りの側で隣接する例えば隣接壁4b2の近傍に位置することになるので、洗浄・排水ポンプ8、分水手段14およびこれの回転支持部41と流出口42が、洗浄槽4の底部4aのほぼ中央部回転中心11と1つのコーナ43とを結ぶ対角線を持ったほぼ1/4領域A以内に、配置できる上、回転支持部41および流出口42の間に位置する弁室133は、前記1/4領域A内の回転支持部41よりもさらに近い位置から洗浄・排水ポンプ8に接続できるし、回転支持部41および流出口42は、前記1/4領域A内にて回転洗浄ノズル12の接続口12aおよび非回転洗浄ノズル13の接続端13aに接続して、洗浄槽4の底部4aのほぼ中央に回転中心11が位置する回転洗浄ノズル12と、洗浄槽4の四周壁4bの少なくとも1つ、具体的には後部壁4b1に設けられる非回転洗浄ノズル13に対し、洗浄・排水ポンプ8からの短い配管、通路長にて、洗浄水を供給することができる。 As a result, the cleaning / drainage pump 8 is located at one of the rear wall 4b1 of the four-round wall 4b of the cleaning tank 4, one of the side walls 4b2, 4b3, and one of the front walls 4b4, at one side in the four-round direction. In the water distribution means 14, a rotation support portion 41 that rotatably supports the rotary cleaning nozzle 12 is positioned substantially at the center of the bottom portion 4 a of the cleaning tank 4 and is connected to the connection end 13 a of the non-rotational cleaning nozzle 13. For example, the outlet 42 is positioned in the vicinity of, for example, the adjacent wall 4b2 that is adjacent to the rear wall 4b1, which is one of the four peripheral walls 4b along which the cleaning / drainage pump 8 extends, on the one side in the circumferential direction. The washing / drainage pump 8, the water diversion means 14, and the rotation support portion 41 and the outlet 42 thereof have a diagonal line connecting the substantially central rotation center 11 of the bottom 4 a of the washing tank 4 and one corner 43. 1/4 area In addition, the valve chamber 133 located between the rotation support portion 41 and the outlet 42 is connected to the cleaning / drainage pump 8 from a position closer to the rotation support portion 41 in the ¼ area A. In addition, the rotation support part 41 and the outlet 42 are connected to the connection port 12a of the rotary cleaning nozzle 12 and the connection end 13a of the non-rotational cleaning nozzle 13 in the ¼ area A, and the bottom of the cleaning tank 4 The cleaning / drainage is performed with respect to the rotating cleaning nozzle 12 having the rotation center 11 positioned substantially at the center of 4a and at least one of the four peripheral walls 4b of the cleaning tank 4, specifically, the non-rotating cleaning nozzle 13 provided on the rear wall 4b1. Wash water can be supplied by a short pipe and passage length from the pump 8.
この結果、洗浄・排水ポンプ8、洗浄水の選択的供給を行う分水手段14およびこれの回転支持部41と流出口42が、洗浄槽4の底部4aの1つのコーナ43側となるほぼ1/4領域A以内に、配置できて配管構造が簡単でかさ張らず食器洗い機100全体が小型化、軽量化、低コスト化する。また、弁室133は近い位置から洗浄・排水ポンプ8に接続し、回転支持部41よび流出口42は、前記1/4領域A内にて回転洗浄ノズル12および非回転洗浄ノズル13に接続するので、短い接続通路で、前記短い配管と併せ、洗浄・排水ポンプ8の駆動、駆動停止に対する応答性を高めるのに併せて、圧力損失をも抑え られ、洗浄効率の向上、洗浄時間の短縮に有利なものとなる。また、複数の吐出経路への分水を異時に行う割合に応じて循環に必要な総水量を抑えてランニングコストも低減できるし、圧力損失による洗浄効率の低減も防げる。 As a result, the cleaning / drainage pump 8, the water distribution means 14 for selectively supplying the cleaning water, and the rotation support portion 41 and the outlet 42 of the cleaning / drainage pump 8 are approximately 1 on the one corner 43 side of the bottom 4 a of the cleaning tank 4. / 4 Within the area A, the piping structure is simple and not bulky, and the entire dishwasher 100 is reduced in size, weight, and cost. Further, the valve chamber 133 is connected to the cleaning / drainage pump 8 from a close position, and the rotation support portion 41 and the outlet 42 are connected to the rotary cleaning nozzle 12 and the non-rotational cleaning nozzle 13 in the ¼ area A. Therefore, with a short connection passage, in addition to the short pipe, driving and stopping of the cleaning / drainage pump 8 can be enhanced, pressure loss can be suppressed, cleaning efficiency can be improved, and cleaning time can be shortened. It will be advantageous. In addition, the running water can be reduced by reducing the total amount of water required for the circulation according to the ratio of dividing water into the plurality of discharge paths at different times, and the cleaning efficiency due to pressure loss can also be prevented.
なお、図示例では、回転支持部41、弁室133、流出口42は、図2、図7に示すように、ほぼ一直線上に並び、流出口42は、隣接壁4b2近傍での洗浄・排水ポンプ8側寄りに位置し、非回転洗浄ノズル13の接続端13aからの立ち上がり部13bを経た水平部13cは、少なくとも四周壁4bの洗浄・排水ポンプ8が沿う1つである、具体的には後部壁4b1に設け、少なくとも水平部13cに洗浄水を噴出する噴射口44を設けたものとしている。 In the illustrated example, the rotation support portion 41, the valve chamber 133, and the outflow port 42 are arranged substantially in a straight line as shown in FIGS. 2 and 7, and the outflow port 42 is washed and drained in the vicinity of the adjacent wall 4b2. The horizontal portion 13c located near the pump 8 and passing through the rising portion 13b from the connection end 13a of the non-rotating cleaning nozzle 13 is one along which the cleaning / drainage pump 8 of at least the four peripheral walls 4b extends. It is assumed that the rear wall 4b1 is provided with an injection port 44 for ejecting cleaning water at least in the horizontal portion 13c.
このように、回転支持部41、弁室133、流出口42が、ほぼ一直線上に並ぶことにより、弁室133から回転支持部41に向かう流出路36、37と、流出口42に向かう流出路38とが、図2に見られるように互いに逆向きに延び、逆向きに延びる流出路のそれぞれが、回転支持部41に向かう流出路36、37のように複数ずつあっても、弁室133の平面視した周方向の半周ずつを利用して、弁室133まわりの拡張なしに必要な範囲で個別に単純経路で連通さて弁体32による流出路36、37、38などの切換えを受けられる。また、流出口42が洗浄・排水ポンプ8側に寄った分だけ、洗浄・排水ポンプ8、分水手段14およびこれの回転支持部41と流出口42との配置が、前記1/4領域A未満に小さくなり、弁室133の洗浄・排水ポンプ8との接続距離がさらに短縮するし、非回転洗浄ノズル13の接続端13aからの立ち上がり部13bを経た水平部13cが、少なくとも四周壁4bの洗浄・排水ポンプ8が沿う1つに設けられる場合の接続距離も短縮し、水平13cが四周壁4bの2つ、3つ、4つに延長される場合や、立ち上がり部13bから周方向両側に分岐する場合にも対応できる。 Thus, the rotation support part 41, the valve chamber 133, and the outflow port 42 are arranged substantially in a straight line, so that the outflow paths 36 and 37 from the valve chamber 133 to the rotation support part 41 and the outflow path toward the outflow port 42 are provided. 38, the valve chambers 133 extend in opposite directions as seen in FIG. 2, and there are a plurality of outflow passages extending in the opposite directions, such as outflow passages 36 and 37 directed to the rotation support portion 41. By using half of the circumference in the circumferential direction in plan view, it is possible to switch the outflow passages 36, 37, 38, etc. by the valve body 32 by individually communicating with each other within a necessary range without expansion around the valve chamber 133. . Further, the arrangement of the cleaning / drainage pump 8, the water diverting means 14, the rotation support portion 41 thereof and the outlet 42 is an amount corresponding to the ¼ region A as much as the outlet 42 is closer to the cleaning / drainage pump 8 side. The distance between the valve chamber 133 and the cleaning / drainage pump 8 is further shortened, and the horizontal portion 13c passing through the rising portion 13b from the connection end 13a of the non-rotating cleaning nozzle 13 is at least provided on the four-wall 4b. The connection distance when the cleaning / drainage pump 8 is provided along one side is shortened, and the horizontal 13c is extended to two, three, and four of the four peripheral walls 4b, or from the rising portion 13b to both sides in the circumferential direction. It can cope with the case of branching.
また、回転支持部41と、回転洗浄ノズル12の接続口12aとは、図1、図4に示すように、洗浄4の底部4aよりも上で垂直に接続している。これにより、回転洗浄ノズル12はその接続口12aを洗浄槽4の底部4aの上で、回転支持部41に垂直方向から他に邪魔されることなく接続することができる。また、流出口42と、立ち上がり部13bの接続端とも、洗浄槽4の底部よりも上で垂直に接続している。これにより、非回転洗浄ノズルもその接続端13aを洗浄槽4の底部4aの上で、流出口42に垂直方向から他に邪魔されることなく接続することができる。 Moreover, the rotation support part 41 and the connection port 12a of the rotary cleaning nozzle 12 are vertically connected above the bottom part 4a of the cleaning 4 as shown in FIGS. Thereby, the rotary cleaning nozzle 12 can connect the connection port 12a on the bottom portion 4a of the cleaning tank 4 to the rotation support portion 41 without being obstructed from the vertical direction. Further, the outlet 42 and the connecting end of the rising portion 13 b are connected vertically above the bottom of the cleaning tank 4. As a result, the non-rotating cleaning nozzle can also be connected at its connecting end 13a on the bottom 4a of the cleaning tank 4 to the outflow port 42 from the vertical direction without being obstructed elsewhere.
本実施の形態の回転洗浄ノズル12は、さらに、分水手段14から洗浄・排水ポンプ8の駆動制御に応じて選択的に供給される吐出経路36、37の違いによって、その回転方向が正転と逆転とに切換えられるようにしている。そのための具体的方法は種々考えられるが、洗浄水の噴射口44からの噴射エネルギーを利用することができる。 The rotary cleaning nozzle 12 of the present embodiment further rotates in the normal direction due to the difference in the discharge paths 36 and 37 that are selectively supplied from the water distribution means 14 according to the drive control of the cleaning / drainage pump 8. And can be switched to reverse. Various specific methods for this are conceivable, but it is possible to use the jet energy from the jet 44 of the wash water.
また、分水手段14における弁室133は、図7に示すように洗浄・排水ポンプ8側に延びる接続口133bを有し、回転支持部41とはほぼ反対側となり、弁体32とはその回転中心46を通る放射方向となる反対の側を向いて洗浄・排水ポンプ8と洗浄槽4の底部4aの下で接続されている。これに対応して、洗浄槽4の底部4aの洗浄・排水ポンプ8が沿うように設けられる周壁4bの部分、図示例では後部壁4b1に沿った洗浄・排水ポンプ8設置範囲に対応して上方へ膨出した膨出部4fを設け、この膨出部4fの下の空間47に洗浄・排水ポンプ8を設置し、洗浄・排水ポンプ8の設置によって洗浄槽4のまわりにデッドスペースが生じるのを防止している。これによっても、食器洗い機本体2が大型化するのを抑えられる。 Further, as shown in FIG. 7, the valve chamber 133 in the water distribution means 14 has a connection port 133 b extending to the cleaning / drainage pump 8 side, which is substantially opposite to the rotation support portion 41, The cleaning / drainage pump 8 and the bottom of the cleaning tank 4 are connected to each other on the opposite side of the radial direction passing through the rotation center 46. Correspondingly, the portion of the peripheral wall 4b provided so that the cleaning / drainage pump 8 of the bottom 4a of the cleaning tank 4 is along, in the illustrated example, corresponding to the installation range of the cleaning / drainage pump 8 along the rear wall 4b1. A swelled portion 4f is provided, and a cleaning / drainage pump 8 is installed in a space 47 below the bulging portion 4f. A dead space is generated around the cleaning tub 4 due to the installation of the cleaning / drainage pump 8. Is preventing. This also prevents the dishwasher main body 2 from becoming large.
ここで、分水手段14について詳述する。分水手段14は、洗浄・排水ポンプ8に連通する流入部をなす既述の弁室133と、この弁室133の上に設けられて前記複数の吐出 経路33、34、35と連通する複数の流出路36、37、38を持った分水通路48と、弁室133内に設けられて流入する洗浄水を複数の流出路36、37、38に選択的に分水させように切換える弁体32とで構成され、分水通路48は、複数の流出路36、37、38のうちの少なくとも1つを一体形成して備えると共に、分水通路48を洗浄槽4内から取り外すことにより、弁体32を洗浄槽4内から着脱可能にしている。これにより、流出路36、37、38の通水洗浄、弁体32自体のメンテナンス、弁体32や弁室133の洗浄といったことが容易になり、複雑な通路構造や弁構造部を長期に清潔に保てるし、複雑な切換え動作をする弁体32の正常な機能も確保しやすい。具体的には、図3に示すように分水通路48は上下の半殻体を超音波溶着などして複数の流出路36、37、38を一体に形成して、その全体が図3、図4、図7に示すように、洗浄槽4の底部4aに設けた凹部49に上方から着脱できるよう嵌め込み、底部4aと段差がない状態に装着するようにし、併せ、凹部49の底部に上方に開口133aを持った弁室133を固定し、前記装着された分水通路49の接続口49aがシールパッキン51を介し着脱できるように上下方向に接続されるようにしている。これにより、弁室133および分水通路48を洗浄槽4内から着脱できるようにするにも、洗浄槽4内に大きく突出して他の邪魔になってデッドスペースができたりしない。特に、分水手段とこれに隣接する洗浄槽4の底部4aとがほぼ同等の高さ関係とすると、清掃時に引っ掛りをなして作業の邪魔になったり外力を受けて損傷するようなことを防止することができる。シールパッキン51は接続口48aの外まわりに装着して、開口133aの内周との間をシールするようにしてあるが、開口133aの内周側に装着しておくこともできる。 Here, the water distribution means 14 will be described in detail. The water diversion means 14 includes the above-described valve chamber 133 that forms an inflow portion that communicates with the cleaning / drainage pump 8, and a plurality of the diversion means 14 that are provided on the valve chamber 133 and communicate with the plurality of discharge paths 33, 34, and 35. The diversion passage 48 having the outflow passages 36, 37, and 38, and a valve provided in the valve chamber 133 for selectively diverting the inflowing wash water into the plurality of outflow passages 36, 37, and 38. The water diversion passage 48 is integrally formed with at least one of the plurality of outflow passages 36, 37, and 38, and the water diversion passage 48 is removed from the cleaning tank 4, The valve body 32 is detachable from the cleaning tank 4. As a result, water flow cleaning of the outflow passages 36, 37, and 38, maintenance of the valve body 32 itself, and cleaning of the valve body 32 and the valve chamber 133 are facilitated, and a complicated passage structure and valve structure portion are cleaned for a long period of time. It is easy to ensure the normal function of the valve body 32 that performs a complicated switching operation. Specifically, as shown in FIG. 3, the water diversion passage 48 integrally forms a plurality of outflow passages 36, 37, 38 by ultrasonic welding or the like of the upper and lower half shells, and the whole is shown in FIG. 3. As shown in FIG. 4 and FIG. 7, the concave portion 49 provided in the bottom portion 4 a of the cleaning tank 4 is fitted so as to be detachable from above, and is mounted in a state where there is no step with the bottom portion 4 a. A valve chamber 133 having an opening 133a is fixed to the connection port 49a of the attached water diversion passage 49 so that the connection port 49a can be attached and detached through the seal packing 51 in the vertical direction. As a result, the valve chamber 133 and the water diversion passage 48 can be detached from the cleaning tank 4, so that the valve chamber 133 and the water diversion passage 48 are largely protruded into the cleaning tank 4 and do not become a dead space. In particular, if the water distribution means and the bottom portion 4a of the cleaning tank 4 adjacent to the water distribution means have substantially the same height relationship, they will be caught during cleaning and may interfere with work or be damaged by external force. Can be prevented. The seal packing 51 is mounted on the outer periphery of the connection port 48a so as to seal between the inner periphery of the opening 133a. However, the seal packing 51 may be mounted on the inner peripheral side of the opening 133a.
弁体32は、弁室133の流入部と分水通路48の複数の流出路36、37.38との間を進退および回転移動することにより、前記流入部から流入した洗浄水を複数の流出路36、37、38を通じて吐出する吐出経路33、34、35を切換えるようにしている。このために、図3、図8(a)に示すように、分水通路48の接続口48aに、弁室133から分水通路48内の3つの流出路36、37、38へ個別かつ維持に分水する4つの分水開口48a1〜48a4を弁体32の回転中心46まわりに、放射状のリブ48a5により均等な大きさに仕切って形成して、図2に示すように分水開口48a1、8a2は流出路36に、分水開口48a3は流出路37に通じ、分水開口48a4は流出路38に通じるようにしている。 The valve body 32 advances and retreats and rotates between the inflow portion of the valve chamber 133 and the plurality of outflow passages 36 and 37.38 of the water diversion passage 48, so that the washing water flowing in from the inflow portion is discharged into the plurality of outflows. The discharge paths 33, 34 and 35 for discharging through the paths 36, 37 and 38 are switched. For this purpose, as shown in FIGS. 3 and 8A, the connection port 48 a of the diversion passage 48 is individually and maintained from the valve chamber 133 to the three outflow passages 36, 37, 38 in the diversion passage 48. The four water diversion openings 48a1 to 48a4 are divided into equal sizes around the rotation center 46 of the valve body 32 by radial ribs 48a5, and as shown in FIG. 8 a 2 communicates with the outflow path 36, the diversion opening 48 a 3 communicates with the outflow path 37, and the diversion opening 48 a 4 communicates with the outflow path 38.
弁体32は、図3に示すように弁室133の底部に一体成形するなどして設けたガイド軸60まわりに回転自在でかつ上下動して前記分水通路48の接続口48aに対し上下方向に離接する円盤状のものとし、接続口48aへの当接時、ガイド軸60まわりの回転によって前記分水開口48a1〜48a4のいずれか1つを開口させる回転中心46まわりの1/4範囲を図8(b)(d)に示すように切除するなどした通水部32aを形成している。これにより、弁体32は、洗浄・排水ポンプ8の駆動、駆動停止による洗浄水圧の有無に応動して、複数の分水開口48a1〜48a4を持った接続口48aに所定の回転位置にて当接し特定の1つ以外を塞いで特定の1つを通水部32aにて通じ分水する分水位置と、接続口48aから離れて各分水開口48a1〜48a4の全てを開放する分水しない非分水位置との間で上下移動し、この弁体32の分水位置と非分水位置との間の往復動作に伴い、弁体32が分水開口48a1〜48a4を閉じる回転位置を変更していくように上部カム対61と下部カム対62とが交互に働くようになっている。 As shown in FIG. 3, the valve body 32 is rotatable about a guide shaft 60 provided integrally with the bottom of the valve chamber 133 and moves up and down to move up and down with respect to the connection port 48 a of the water diversion passage 48. A disc-shaped one that is separated from and coming in the direction, and a 1/4 range around the rotation center 46 that opens any one of the water diversion openings 48a1 to 48a4 by rotation around the guide shaft 60 when contacting the connection port 48a. Is formed as shown in FIGS. 8B and 8D. As a result, the valve body 32 contacts the connection port 48a having a plurality of water diversion openings 48a1 to 48a4 at a predetermined rotational position in response to the presence or absence of the washing water pressure due to the driving / stopping of the washing / drainage pump 8. The water distribution position where the specific one is passed through the water supply part 32a by blocking other than the specific one in contact, and the water distribution openings 48a1 to 48a4 apart from the connection port 48a are not opened. The valve body 32 is moved up and down between the non-water-dividing position, and the rotational position at which the valve body 32 closes the water-dividing openings 48a1 to 48a4 is changed with the reciprocation between the water-dividing position and the non-water-dividing position. Thus, the upper cam pair 61 and the lower cam pair 62 work alternately.
さらに具体的には、下部カム対62は互いに噛み合う鋸歯状カム62a、62b同士であり、双方は弁体32を1/4回転位置ずつに安定させる案内条件を持っている。一方、上部カム対61は山形カム61aと分水口48a1〜48a4を仕切るリブ48a5の下端がなす放射状カム61bとであり、弁体32が下部カム対62によって安定していた非分水位置から洗浄水圧によって押し上げられたとき、山形カム61aの斜面が放射状カム61bの途中位置から当接させて弁体32を分水位置まで1/4回未満回転させて安定さ せる機能を持ち、洗浄水圧解除によって分水位置から弁体32が落下すると、下部カムタ対62の鋸歯状カム62a、62b同士は互いの歯の途中位置で噛み合い、弁体32を前記上部カム対61による1/4回未満回転から1/4回転までの残りを回転させて安定させる機能を持っている。 More specifically, the lower cam pair 62 is serrated cams 62a and 62b that mesh with each other, and both have guide conditions for stabilizing the valve body 32 at each 1/4 rotation position. On the other hand, the upper cam pair 61 is a chevron cam 61a and a radial cam 61b formed by the lower end of the rib 48a5 that partitions the water diverting ports 48a1 to 48a4. When pushed up by water pressure, the slope of the angle cam 61a abuts from the midway position of the radial cam 61b and rotates the valve body 32 less than 1/4 times to the water splitting position to stabilize it. When the valve body 32 is dropped from the water splitting position, the serrated cams 62a and 62b of the lower camta pair 62 are engaged with each other at a midway position between the teeth, and the valve body 32 is rotated less than ¼ times by the upper cam pair 61. It has a function to rotate and stabilize the rest from 1/4 to 1/4 rotation.
これにより、弁体32は分水位置に上動する都度上動前の安定回転位置から1/4回転未満回転させられ、弁体32は一旦分水位置に上動した後落下する都度下部カム対62の噛み合わせ位置が次の1/4回転位置へ安定させるように変更される。この結果、複数の分水開口48a1〜48a4のうち1つずつが順次に開放され、分水開口48a1から回転洗浄ノズル12の流出路36を経た回転洗浄ノズル12の吐出経路33への分水、分水開口48a2から回転洗浄ノズル12の流出路36を経た回転洗浄ノズル12の吐出経路33への分水、分水開口48a3から流出路37を経た吐出経路34への分水、分水開口48a4から流出路38を経た非回転洗浄ノズル13の吐出経路35への分水が、順次に、繰り返されることになる。 As a result, the valve body 32 is rotated by less than ¼ rotation from the stable rotational position before the upward movement every time the valve body 32 moves upward to the water diversion position, and the valve body 32 once moves up to the water diversion position and then falls. The meshing position of the pair 62 is changed so as to be stabilized to the next 1/4 rotation position. As a result, one of the plurality of water distribution openings 48a1 to 48a4 is sequentially opened, and water is distributed from the water distribution opening 48a1 to the discharge path 33 of the rotary cleaning nozzle 12 through the outflow path 36 of the rotary cleaning nozzle 12, Water splitting from the water splitting opening 48a2 to the discharge path 33 of the rotary cleaning nozzle 12 via the outflow path 36 of the rotary cleaning nozzle 12, water splitting from the water splitting opening 48a3 to the discharge path 34 via the outflow path 37, water splitting opening 48a4 Water distribution to the discharge path 35 of the non-rotating cleaning nozzle 13 through the outflow path 38 is sequentially repeated.
ここに、制御手段31が洗浄・排水ポンプ8の駆動停止を挟む駆動時間を一定とする制御では、洗浄・排水ポンプ8からの洗浄液を分水開口48a1、48a2を通じて回転洗浄ノズル12の吐出経路36に2回繰り返し供給し回転洗浄ノズル12を正回転させて洗浄に供する時間は、洗浄・排水ポンプ8からの洗浄液を分水開口48a3を通じて回転洗浄ノズル12の吐出経路37に供給し回転ノズル12を逆転させて洗浄に供する時間と、分水開口48a4から流出路38を通じて非回転洗浄ノズル13の吐出経路35に供給し洗浄に供する時間の双方に対して、2倍となる。 Here, in the control in which the control means 31 keeps the driving time between the stoppage of the cleaning / drainage pump 8, the cleaning liquid from the cleaning / drainage pump 8 is discharged from the discharge path 36 of the rotary cleaning nozzle 12 through the diversion openings 48 a 1, 48 a 2. The cleaning liquid from the cleaning / drainage pump 8 is supplied to the discharge path 37 of the rotary cleaning nozzle 12 through the diversion opening 48a3 by supplying the rotary cleaning nozzle 12 forward and rotating the rotary cleaning nozzle 12 forward. This is twice as long as the time for reverse cleaning and the time for supplying to the discharge path 35 of the non-rotating cleaning nozzle 13 from the diversion opening 48a4 through the outflow path 38 and for cleaning.
これは、回転洗浄ノズル12から噴射する洗浄水が、食器の食物を入れる内側となる凹部に行き届きやすくするため、例えば、図9に例示するように、回転洗浄ノズル12の洗浄槽4の底部4aのほぼ中央に位置する回転中心11を通り、かつ、洗浄槽4の四周壁4bの相対向し合う2つの周壁4b1、4b4に直角な直線71を境に、食器72の内側が相対向し合う対称な向きに載置されるように食器かご6を最適設計したことに対し、回転洗浄ノズル12の正転にて、最適配置された前記食器72などに対する洗浄が十分であるように噴射条件などを最適設計していることに対応している。 This is because the cleaning water sprayed from the rotary cleaning nozzle 12 can easily reach the concave portion on the inner side where the food of the tableware is placed. For example, as illustrated in FIG. 9, the bottom 4a of the cleaning tank 4 of the rotary cleaning nozzle 12 The inner side of the tableware 72 is opposed to each other with a straight line 71 passing through the rotation center 11 located substantially at the center and perpendicular to the two peripheral walls 4b1, 4b4 of the cleaning tank 4 facing each other. In contrast to the optimal design of the tableware basket 6 so that it is placed in a symmetric orientation, the spraying conditions and the like so that the optimally arranged tableware 72 and the like are sufficiently cleaned by the forward rotation of the rotary cleaning nozzle 12 This corresponds to the optimal design.
つまり、回転洗浄ノズル12の正転洗浄にて通常は十分であるところ、洗浄時間の短縮、被洗浄物の収容量の増大、被洗浄物の配置形態のばらつきなどに起因したウイークポイントへの洗浄補助を逆転洗浄で補い、より短時間でより洗い残しなく洗浄できるようにしている。また、図9に示すように内側が対向し合うように対称配置する食器72の一方側が大きく、他方側が小さくなるように食器かご6を設計した場合、図1に示す場合は前後に対向し合い、前部側の食器が大きく後部側の食器が小さい場合、小さい食器を配置する領域の上方に空間ができるので、この空間にも図1に示すように食器かご7を設けて洗浄槽4内を有効利用するが、この食器かごの領域を回転洗浄ノズル12の適正洗浄範囲にするには困難や無駄があったりするので、これを回転洗浄ノズル12のウイークポイントとして回転洗浄ノズル12の洗浄負荷を軽減しておき、既述した非回転洗浄ノズル13の主として水平部13cによって洗浄を補助できるようにしており、立ち上がり部13bの食器かご7に対応する範囲に噴射口44を設けることで洗浄の補助機能を高めている。この意味で、水平部13cは立ち上がり部13bを設けた側壁4b2と反対の側壁4b3へも延長するのが好適であるし、さらに、前部壁4b4へも延長することも考えられる。このような洗浄の補助機能から、水平部13cは四周壁4bの全周にあるのが最強となるし、水平部13cの延長域とはべつに、立ち上がり部13bから周方向両側に分岐させて設けることもでき、この場合両側に分岐する水平部13cの高さや延長経路に違いを持たせると、洗浄槽4内の広い洗浄域内での高さ方向、平面方向の場所ごとで異なる洗浄負荷の違いに対応しやすい。 In other words, normal rotation cleaning of the rotary cleaning nozzle 12 is usually sufficient, but cleaning to a weak point caused by shortening the cleaning time, increasing the amount of objects to be cleaned, variation in the arrangement of objects to be cleaned, etc. The auxiliary is supplemented by reverse cleaning, so that cleaning can be performed in a shorter time and without remaining. 9, when the tableware basket 6 is designed so that one side of the tableware 72 arranged symmetrically so that the inside faces each other is large and the other side is small, in the case shown in FIG. When the tableware on the front side is large and the tableware on the rear side is small, a space is formed above the area where the small tableware is arranged. In this space, a table basket 7 is provided in the washing tank 4 as shown in FIG. However, it is difficult and wasteful to make this tableware basket area the proper cleaning range of the rotary cleaning nozzle 12, and this is used as a weak point of the rotary cleaning nozzle 12 and the cleaning load of the rotary cleaning nozzle 12. The non-rotating cleaning nozzle 13 described above can be assisted mainly by the horizontal portion 13c, and the injection port 44 is within a range corresponding to the tableware basket 7 of the rising portion 13b. To enhance the cleaning of the auxiliary function by providing. In this sense, it is preferable that the horizontal portion 13c extends to the side wall 4b3 opposite to the side wall 4b2 provided with the rising portion 13b, and it is also possible to extend to the front wall 4b4. Due to such an auxiliary function of cleaning, the horizontal portion 13c is strongest on the entire periphery of the four peripheral walls 4b, and is provided separately from the extending portion of the horizontal portion 13c on both sides in the circumferential direction. In this case, if the height of the horizontal portion 13c branched to both sides and the extension path are made different, the difference in the cleaning load differs depending on the location in the height direction and the plane direction in the wide cleaning area in the cleaning tank 4. It is easy to cope with.
もっとも、図示例での4つの分水開口48a1〜48a4を通じた分水を、前記非回転洗浄ノズル13の吐出経路35が1つであるのを2つにするなどして、既存の吐出経路33、34、35に増設分を加えた4つに対し、行うようにすると、前記洗浄・排水ポンプ8の駆動制御では、回転洗浄ノズル12の吐出経路33への分水時間と、回転洗浄ノズル12の吐出経路34、非回転洗浄ノズル13の吐出経路35および追加吐出経路への分水時間とが同じになってしまう。 However, in the illustrated example, the water distribution through the four water distribution openings 48a1 to 48a4 is made such that the number of the discharge paths 35 of the non-rotating cleaning nozzle 13 is one, and the existing discharge path 33 is used. , 34, 35, and the added four parts, when the cleaning / drainage pump 8 is driven and controlled, the water splitting time to the discharge path 33 of the rotary cleaning nozzle 12 and the rotary cleaning nozzle 12 are controlled. The discharge path 34, the discharge path 35 of the non-rotating cleaning nozzle 13 and the water distribution time to the additional discharge path are the same.
しかし、分水手段14から洗浄・排水ポンプ8の駆動制御に応じて選択的に供給される回転洗浄ノズル12の各吐出経路33、34の違いによって、その回転方向が正転と逆転とに切換えられる場合の、正転時間と逆転時間とが所定の割合となるように、制御手段31は洗浄・排水ポンプ8の駆動を自由に制御することができる。それには、制御手段31は、洗浄・排水ポンプ8の正転時と逆転時とのそれぞれの駆動時間の割合により、回転洗浄ノズル12の正転時間と逆転時間との割合を制御すればよい。正転と逆転とで洗浄効果が変わらない関係では、正転時間と逆転時間とは同等に設定することもできる。 However, the rotation direction is switched between forward rotation and reverse rotation depending on the difference between the discharge paths 33 and 34 of the rotary cleaning nozzle 12 which is selectively supplied from the water diversion means 14 according to the drive control of the cleaning / drainage pump 8. In this case, the control means 31 can freely control the driving of the cleaning / drainage pump 8 so that the normal rotation time and the reverse rotation time are in a predetermined ratio. For this purpose, the control means 31 may control the ratio between the normal rotation time and the reverse rotation time of the rotary cleaning nozzle 12 according to the ratio of the respective drive times during the normal rotation and reverse rotation of the cleaning / drainage pump 8. In the relationship where the cleaning effect does not change between forward rotation and reverse rotation, the normal rotation time and the reverse rotation time can be set to be equal.
もっとも、吐出経路36、37、38や前記追加分、さらなる追加分を含め、それに対応した分水開口48a1〜48a4や追加分を含めたものからの分水時間の割合は、制御手段31による各分水制御持の洗浄・排水ポンプ8の駆動時間の割合によって自由に設定、制御できる。 However, the ratio of the water diversion time from the discharge passages 36, 37, 38, the additional portion, and the additional portion, and the corresponding diversion openings 48a1 to 48a4 and the additional portion are determined by the control means 31. It can be set and controlled freely according to the ratio of the driving time of the washing / drainage pump 8 with the diversion control.
回転洗浄ノズル12の正転時間と逆転時間の割合を制御する場合、回転洗浄ノズル12の回転方向検知手段を備え、制御手段31が、回転洗浄ノズルの正転時と逆転時との前記回転方向検知手段からの出力に基づき、正転時間と逆転時間とが所定の割合となるように制御するようにできる。 In the case of controlling the ratio between the forward rotation time and the reverse rotation time of the rotary cleaning nozzle 12, a rotation direction detection unit of the rotary cleaning nozzle 12 is provided, and the control unit 31 rotates the rotation direction between the forward rotation and the reverse rotation. Based on the output from the detection means, the normal rotation time and the reverse rotation time can be controlled to have a predetermined ratio.
また、別に、2つの吐出経路33、34に供給される洗浄水の流れを検知する流水検知手段を備え、制御手段31が、回転洗浄ノズル12の正転時と逆転時との流水検知手段からの出力に基づき、正転時間と逆転時間とが所定の割合となるように制御するようにもできる。 In addition, separately, a water flow detection means for detecting the flow of the cleaning water supplied to the two discharge paths 33 and 34 is provided, and the control means 31 is provided with a water flow detection means for the forward rotation and the reverse rotation of the rotary cleaning nozzle 12. Based on the output, the forward rotation time and the reverse rotation time can be controlled to be a predetermined ratio.
さらに、別に、弁体32の2つの流出路36、37を介した2つの吐出経路33、34への洗浄水の供給切換え位置を検知する弁***置検知手段を備え、制御手段31、回転洗浄ノズル12の正転時と逆転時との前記弁***置検知手段からの出力に基づき、正転時間と逆転時間とが所定の割合となるように制御するようにもできる。 In addition, a valve body position detecting means for detecting the supply water switching position of the cleaning water to the two discharge paths 33 and 34 via the two outflow paths 36 and 37 of the valve body 32 is provided. Based on the output from the valve body position detection means at the time of forward rotation and reverse rotation of the nozzle 12, the forward rotation time and the reverse rotation time can be controlled to be a predetermined ratio.
図示する例では、さらに、分水手段14が分水通路48の一端にある回転支持部41によって回転洗浄ノズル12の接続口12aを回転自在に支持して2つの流出路36、37を、図2に示すように回転洗浄ノズル12の両端間に及んで平面視回転中心軸11部でクロスするようにクロス配置された2つの吐出経路33、34に、前記回転中心11まわりで連通させるのに、流出路37から吐出経路37への流出口37aと、流出路36から吐出経路33への流出口36aとを、図4に示すように回転中心11まわりに同心な内外二重通路構造の流出口36a、37aとして回転支持部41に開口させ、吐出経路33、34の導入口12a1、12a2を、回転中心11まわりに同心な内外二重通路構造の導入口12a1、12a2として接続口12aに開口させ、接続口12aの回転支持部への接続によって、それら流出口36a、37aと導入口12a1、12a2とが繋がり、この内外二重通路構造の導入口12a1、12a2が、吐出経路33、34のクロス域における吐出経路33、34との平面視互いに回転中心11を中心とする点対称配置となる2箇所ずつの導入部12a3、12a4に連通させるようにしている。これにより、分水通路48の流出路36から回転洗浄ノズル12の吐出経路33への分水時の洗浄水の流れも、 分水通路48の流出路37から回転洗浄ノズル12の吐出経路34への分水時の洗浄水の流れも、回転洗浄ノズル12の回転にもかかわらず、また、その回転位置の違いにも関わらず、回転中心に同心な内外二重通路構造によって脈動や乱れなく安定した回転中心11まわりにほぼ均等な層流状態となって各吐出通路33、34にほぼ均等に導入されるし、各吐出通路33、34へはそれらが回転軸11まわりのクロス域における回転中心11を中心とする点対称配置となる2箇所ずつの導入連通部12a3、12a4を通じて、回転洗浄ノズル12の回転バランスを崩すことなく導入されるので、回転洗浄ノズル12は正転も逆転も振動や脈動、回転むらといったことなく安定に回転し、回転による洗浄効果が低下したり回転位置によってむらが生じたりしない。これには、流出路36、37から吐出路33、34に分水する通路断面積が双方同等になるように設計されるのが好適である。 In the illustrated example, the water distribution means 14 further rotatably supports the connection port 12a of the rotary cleaning nozzle 12 by the rotation support portion 41 at one end of the water distribution passage 48, thereby showing two outflow passages 36 and 37. As shown in FIG. 2, in order to communicate with the two discharge paths 33, 34 arranged so as to cross between the both ends of the rotary cleaning nozzle 12 and cross at the rotation center axis 11 portion in plan view, around the rotation center 11. The flow outlet 37a from the outflow path 37 to the discharge path 37 and the outflow path 36a from the outflow path 36 to the discharge path 33 are arranged in a flow having a concentric inner and outer double passage structure around the rotation center 11 as shown in FIG. The outlets 36 a and 37 a are opened in the rotation support portion 41, and the inlets 12 a 1 and 12 a 2 of the discharge passages 33 and 34 are connected as inlets 12 a 1 and 12 a 2 having a concentric inner and outer double passage structure around the rotation center 11. The outlets 36a and 37a are connected to the inlets 12a1 and 12a2 by opening the opening 12a and connecting the connecting port 12a to the rotation support portion. The inlets 12a1 and 12a2 of the inner and outer double passage structures are connected to the discharge path. In plan view with the discharge paths 33 and 34 in the cross region 33 and 34, the two introduction portions 12 a 3 and 12 a 4 that are arranged in a point-symmetrical manner around the rotation center 11 are communicated with each other. As a result, the flow of the cleaning water during the water splitting from the outflow path 36 of the diversion passage 48 to the discharge path 33 of the rotary cleaning nozzle 12 also passes from the outflow path 37 of the diversion path 48 to the discharge path 34 of the rotary cleaning nozzle 12. The flow of cleaning water during water separation is stable without pulsation or disturbance due to the inner and outer double passage structure concentric with the center of rotation, regardless of the rotation of the rotary cleaning nozzle 12 and the difference in the rotation position. As a result, a substantially uniform laminar flow state around the rotation center 11 is introduced into each of the discharge passages 33 and 34, and the rotation center in the cross region around the rotation shaft 11 is introduced to each of the discharge passages 33 and 34. 11 is introduced without breaking the rotational balance of the rotary cleaning nozzle 12 through the two introduction communication portions 12a3 and 12a4 each having a point-symmetrical arrangement with the center of 11 as the center. Rolling the vibration or pulsation rotated stably without such irregular rotation, the cleaning effect is not or cause uneven by the rotation position lowered by the rotation. For this purpose, it is preferable that the passage cross-sectional areas for dividing water from the outflow passages 36 and 37 to the discharge passages 33 and 34 are designed to be equal to each other.
また、回転支持部41は図4に示すように、これを持った分水通路48において、弁室133からからの横向きとなって洗浄槽4の底部4aに沿って延びる延出経路範囲Bから回転中心方向に向け屈曲した上向きとなる屈曲経路範囲Cをなし、この屈曲回路範囲Cの少なくとも外コーナC1側は滑らかな湾曲形状をなしその湾曲のための湾曲高さ領域Hを有したものとしている。これによって、分水通路48の流出路36、37に分水された洗浄水は、前記横向き回路範囲Bから滑らかな屈曲経路範囲Cを経て無理なく、乱れることなく、垂直な上向きとなっている回転支持部41の回転中心11に同心な内外二重通路構造をなす流出口36a、37aに向けスムーズに案内されて、同じく垂直で回転中心11に同心な内外二重通路構造をなす導入口12a1、12a2へ衝突や偏り、乱れなどなく真上に流れ込んで、前記導入連通口12a3、12a4を通じて吐出経路33、34に回転中心11まわりにバランスよく導入されるので、回転洗浄ノズル12の回転のバランス、安定性がさらに向上する。例えば屈曲経路範囲Cの内面の曲率は、分水通路48の横断面形状をほぼ円形とした場合、その内径のほぼ1/2以上とすることが乱流の発生の抑制および圧力損失の低減という点で好適であり、例えば、分水通路48の内径が20mmとし、屈曲経路範囲Cの曲率を10mm以上とするのがよい。また、屈曲経路範囲Cの内コーナの内面が角張れば、下流側に乱流やキャビテーションが生じやすくなるので、外コーナ側より曲率は十分小さくてよいが、軸線方向の曲面としておくことが望ましい。 Further, as shown in FIG. 4, the rotation support portion 41 has a diversion passage 48 having the rotation support portion 41 extending from the extending path range B extending along the bottom portion 4 a of the cleaning tank 4 in a lateral direction from the valve chamber 133. An upward bending path range C bent toward the center of rotation is formed, and at least the outer corner C1 side of the bending circuit range C has a smooth curved shape and has a curved height region H for the bending. Yes. As a result, the wash water divided into the outflow passages 36 and 37 of the diversion passage 48 is directed upward upward without any turbulence through the smooth bending path range C from the lateral circuit range B. The inlet 12a1 is smoothly guided toward the outflow ports 36a and 37a that form a concentric inner / outer double passage structure at the rotation center 11 of the rotation support portion 41, and also forms an inner / outer double passage structure that is also vertical and concentric with the rotation center 11. , 12a2 flows straight up without any collision, bias or disturbance, and is introduced into the discharge passages 33, 34 through the introduction communication ports 12a3, 12a4 in a balanced manner around the rotation center 11, so that the rotation balance of the rotary cleaning nozzle 12 is balanced. , Stability is further improved. For example, when the cross-sectional shape of the water diversion passage 48 is substantially circular, the curvature of the inner surface of the bending path range C is approximately ½ or more of the inner diameter, which suppresses the occurrence of turbulence and reduces pressure loss. For example, the inner diameter of the water diversion passage 48 is 20 mm, and the curvature of the bending path range C is preferably 10 mm or more. Further, if the inner surface of the inner corner of the bending path range C is angular, turbulence and cavitation are likely to occur on the downstream side. Therefore, the curvature may be sufficiently smaller than the outer corner side, but it is desirable to have a curved surface in the axial direction. .
このために、本例では、前記横向きの延出経路範囲Bは、弁室133との接続高さ位置H0から回転支持部41側に向って下向き傾斜となる部分B1を有したものとしており、延出経路の弁室から回転支持部側への下向きの傾斜によって、屈曲経路を湾曲形状とするための湾曲高さ領域Hが、弁室設置の高さ領域H1と並列な関係にて確保でき、それが沿う洗浄槽の壁からのかさ張りをさらに抑えられる。しかし、接続高さ位置H0よりも低い部分には洗浄水が残るので、好適には、弁室133と共にドレン排水を適時に実施すればよい。しかし、延出経路範囲Bを図4に仮想線で示すような水平方向以上の高さで延出させまたは上向き傾斜とすることにより、湾曲高さ領域H1の下端壁48aは、弁室32との接続高さH0以上となるので、天部壁48cの高さや形状に関係なく、洗浄水を弁室133に流れ込ませて途中に残るのを回避し、弁室133一か所にてドレン処理ができる。もっとも、複数の洗浄ノズルを備えて洗浄効果を高めるのに、少なくとも1つを回転洗浄ノズル12とし、底部4aの中央部に配置して優先使用するのが好適な1つの態様ではあるが、これに限られることはなく、少なくとも1を前記立ち上がり部13b、水平部13cを有した非回転洗浄ノズル13として、他の1つまたは複数の洗浄ノズルと選択的に複合して働かせて洗浄効果を高めることもできる。 Therefore, in this example, the laterally extending path range B has a portion B1 that is inclined downward from the connection height position H0 to the valve chamber 133 toward the rotation support portion 41, Due to the downward inclination of the extension path from the valve chamber toward the rotation support portion, a curved height region H for making the bent path into a curved shape can be secured in parallel with the height region H1 of the valve chamber installation. The bulking from the wall of the washing tank along which it is further suppressed. However, since the washing water remains in a portion lower than the connection height position H0, it is preferable to drain the drain together with the valve chamber 133 in a timely manner. However, the lower end wall 48a of the curved height region H1 is connected to the valve chamber 32 by extending the extending path range B at a height equal to or higher than the horizontal direction as indicated by a virtual line in FIG. Therefore, regardless of the height or shape of the top wall 48c, it is possible to prevent the wash water from flowing into the valve chamber 133 and remaining in the middle, and to perform drain treatment at one location of the valve chamber 133. Can do. Of course, in order to enhance the cleaning effect by providing a plurality of cleaning nozzles, at least one of them is the rotary cleaning nozzle 12, and it is a preferred embodiment to be arranged and used preferentially in the center of the bottom 4a. The non-rotating cleaning nozzle 13 having at least the rising portion 13b and the horizontal portion 13c is selectively used in combination with one or a plurality of other cleaning nozzles to enhance the cleaning effect. You can also
この場合、立ち上がり部13bは図7に示したように、平面視して洗浄・排水ポンプ8から外れた位置にて一端部である接続端13aが洗・排水ポンプ8よりも高い位置まで立ち上げ、水平部13cは、立ち上がり部13bの一端部に接続され、平面視して洗浄・排水ポンプ8の少なくとも上方を経由するかまたは上方に位置して四周4bの少なくとも1つに設けたものとするだけで、食器洗い機本体2の洗浄槽4への給水後に洗浄・排水ポンプ 8を給水方向に駆動すると、洗浄・排水ポンプ8は洗浄槽4内の洗浄水を吸い込み加圧して分水手段14へ送り出し、分水手段14は少なくとも1つが非回転洗浄ノズル13であり、他が回転洗浄ノズル12などである複数の洗浄ノズルの1つまたは複数の吐出経路33、34、35に向け同時またはおよび異時に分水させて選択的に供給するので、少なくとも1つの非回転洗浄ノズル12を含む複数の浄ノズルとそれらが持つ1つまたは複数の吐出経路33、34、35による洗浄作用を選択的に複合させて、洗浄水を複数のノズル位置から多様なパターンで、洗浄槽4内に噴出させて食器かご6、7に載置された食器72などの被洗浄物を洗浄することができる。 In this case, as shown in FIG. 7, the rising portion 13 b rises to a position where the connecting end 13 a as one end is higher than the washing / drainage pump 8 at a position away from the washing / drainage pump 8 in plan view. The horizontal portion 13c is connected to one end portion of the rising portion 13b, and is provided in at least one of the four circumferences 4b via at least the upper portion of the cleaning / drainage pump 8 in a plan view. If the washing / drainage pump 8 is driven in the water supply direction after supplying water to the washing tub 4 of the dishwasher main body 2, the washing / drainage pump 8 sucks and pressurizes the washing water in the washing tub 4 and supplies it to the water dividing means 14. At least one non-rotating cleaning nozzle 13 and one of the plurality of cleaning nozzles such as the rotating cleaning nozzle 12 are simultaneously directed to one or a plurality of discharge paths 33, 34, and 35 of the delivery / spreading means 14. In addition, since the water is divided and selectively supplied at different times, the cleaning action by the plurality of cleaning nozzles including at least one non-rotating cleaning nozzle 12 and one or a plurality of discharge paths 33, 34, and 35 possessed by them is performed. By selectively combining them, washing water can be sprayed into the washing tub 4 in various patterns from a plurality of nozzle positions to wash the objects to be washed such as the dishes 72 placed on the tableware baskets 6 and 7. it can.
しかも、非回転洗浄ノズル13は、洗浄槽4の底部4aまわりに設けられる洗浄・排水ポンプ8からの洗浄水を分水手段14による分水にて、立ち上がり部13bを通じ水平部13cに供給されて噴射させるが、水平部13cは洗浄槽4の四周壁4bの少なくとも1つに、それに沿って配置した洗浄・排水ポンプ8の上方を経由するか上方に位置して設けたことにより、平面視して洗浄・排水ポンプ8から外れた立ち上がり部13cを含み洗浄・排水ポンプ8からの分水手段14を介した給水経路長を、洗浄・排水ポンプ8と邪魔し合わない引き回し経路にて短くすることができる。また、立ち上がり部13bによって水平部13cを洗浄槽4の必要所定高さに位置させて、他の洗浄ノズルと複合して働かせられる。 In addition, the non-rotating cleaning nozzle 13 is supplied with the cleaning water from the cleaning / drainage pump 8 provided around the bottom portion 4a of the cleaning tank 4 by the water dividing means 14 and supplied to the horizontal portion 13c through the rising portion 13b. The horizontal portion 13c is provided on at least one of the four peripheral walls 4b of the cleaning tank 4 via or above the cleaning / drainage pump 8 disposed along the horizontal portion 13c. The length of the water supply path including the rising portion 13c separated from the cleaning / drainage pump 8 through the water diverting means 14 from the cleaning / drainage pump 8 is shortened by a route that does not interfere with the cleaning / drainage pump 8. Can do. Further, the horizontal portion 13c is positioned at a required predetermined height of the cleaning tank 4 by the rising portion 13b, and can be used in combination with other cleaning nozzles.
また、図7に仮想線で示すように、立ち上がり部13bを複数の吐出経路35、35aで構成し、この複数の吐出経路35、35aにそれぞれ対応させて水平部13cおよびその吐出経路35、35aを設けるとともに、立ち上がり部13nの複数の吐出経路35、35aを少なくとも接続端13aにおいて一体成形成するなどして、それぞれに対応させて一体成形するなどして分水通路48に設けた複数の流出口42、42aに同時に接続、分離可能に設けたものとすることができる。これにより、非回転洗浄ノズル13に複数の吐出経路35、35aを備えて洗浄水の噴射域を増大させて洗浄効果を高めながら、分水手段14との接続はその分水通路48における複数の流出口42、42aに対して同時に、つまり一挙動にて接続および分離することができる。 Further, as shown by phantom lines in FIG. 7, the rising portion 13b is constituted by a plurality of discharge paths 35, 35a, and the horizontal portion 13c and its discharge paths 35, 35a are respectively associated with the plurality of discharge paths 35, 35a. And a plurality of flow paths provided in the diversion passage 48 by integrally forming the discharge paths 35 and 35a of the rising portion 13n at least at the connection end 13a and integrally forming the discharge paths 35 and 35a. The outlets 42 and 42a can be connected and separated at the same time. As a result, the non-rotating cleaning nozzle 13 is provided with a plurality of discharge passages 35 and 35 a to increase the cleaning water injection area and enhance the cleaning effect, while the connection with the water dividing means 14 is connected to the water dividing passage 48. The outlets 42 and 42a can be connected and disconnected simultaneously, that is, in one behavior.
なお、弁室133は図10に示すように、洗浄槽4の底部4aと一体形成して部品点数と組み立て工数とを低減してさらにコスト低下を図ることができる。具体的には、洗浄槽4の底部4aの分水通路48を嵌め込む凹部49の底部に弁室133の開口133a部で繋がるように一体成形してある。他の構造は先の例の分水通路48および弁室133、弁体32がなす分水手段14と変わるところはなく、共通する部材や部分には同一の符号を付して説明は省略する。 As shown in FIG. 10, the valve chamber 133 can be integrally formed with the bottom 4a of the cleaning tank 4 to reduce the number of parts and the number of assembly steps, thereby further reducing the cost. Specifically, it is integrally formed so as to be connected to the bottom portion of the concave portion 49 into which the water diversion passage 48 of the bottom portion 4 a of the cleaning tank 4 is fitted by the opening 133 a portion of the valve chamber 133. Other structures are the same as the water diversion means 14 formed by the water diversion passage 48, the valve chamber 133, and the valve body 32 of the previous example, and common members and portions are denoted by the same reference numerals and description thereof is omitted. .
本発明は引き出し式の洗浄槽を持った食器洗い機に実用して、回転洗浄ノズル、非回転洗浄ノズルを組み合わせて、それらに1つまたは複数設けられる各吐出経路への同時またはおよび異時での選択的な分水によって、洗浄域が広域で洗浄時間を短縮しても、十分な洗浄効果を発揮する。 INDUSTRIAL APPLICABILITY The present invention is practically used in a dishwasher having a drawer-type washing tank, and combines a rotary washing nozzle and a non-rotational washing nozzle, and simultaneously or simultaneously to each discharge path provided in one or a plurality of them. Even if the cleaning area is wide and the cleaning time is shortened by selective water splitting, a sufficient cleaning effect is exhibited.
100 食器洗い機
1 開口部
2 食器洗い機本体
2 洗浄槽
3 開口
4 洗浄槽
4a 底部
4b 四周壁
4b1 後部壁
4b2、4b3 両側壁
4b4 前部壁
6、7 食器かご
8 洗浄ポンプ
11 回転中心
12 回転洗浄ノズル
12a 接続口
13 非回転洗浄ノズル
13a 接続端
13b 立ち上がり部
13c 水平部
14 分水手段
23 給水弁
25 ヒータ
26 排水ポンプ
27 ファンヒータ
31 制御手段
32 弁体
133 弁室
133a 開口
133b 接続口
33、34、35 吐出経路
36、37、38 流出路
36a、37a、42 流出口
41 回転支持部
43 コーナ
44 噴射口
48 分水通路
49 凹部
61 上部カム
62 下部カム
72 食器
DESCRIPTION OF SYMBOLS 100 Dishwasher 1 Opening part 2 Dishwasher main body 2 Washing tank 3 Opening 4 Washing tank 4a Bottom part 4b Four peripheral walls 4b1 Rear wall 4b2, 4b3 Both side walls 4b4 Front wall 6, 7 Dish basket 8 Washing pump 11 Rotation center 12 Rotation washing nozzle 12a connection port 13 non-rotating washing nozzle 13a connection end 13b rising portion 13c horizontal portion 14 water diverting means 23 water supply valve 25 heater 26 drainage pump 27 fan heater 31 control means 32 valve body 133 valve chamber 133a opening 133b connection ports 33, 34, 35 Discharge path 36, 37, 38 Outflow path 36a, 37a, 42 Outlet 41 Rotation support part 43 Corner 44 Injection port 48 Dividing path 49 Recess 61 Upper cam 62 Lower cam 72 Tableware
Claims (4)
前記分水手段は、前記洗浄ポンプに連通する流入部をなす弁室と、この弁室に接続されて前記複数の吐出経路と連通する複数の流出路を持った分水通路と、前記弁室内に設けられて流入する洗浄水を前記複数の流出路に選択的に分水させるように切換える弁体とで構成され、前記非回転洗浄ノズルは、前記洗浄槽の底部付近の分水手段との接続端からの単独の立ち上がり部、前記接続端からの水平部を経た立ち上がり部、前記接続端からの立ち上がり部を経た水平部、の少なくともいずれかを備え、
前記洗浄ポンプは、前記洗浄槽の四周壁の後部壁、両側の側壁の一方、前部壁のうちの、1つの、四周方向一方に寄った位置に沿って設け、前記弁室は、前記分水手段において、回転洗浄ノズルにおけるその回転中心と同心の接続口に対応する流出路を接続して回転自在に支持する回転支持部と、前記非回転洗浄ノズルの接続端に対応する流出路を接続する流出口と、の間に位置し、前記流出口は、前記洗浄ポンプが沿う前記四周壁の1つに前記一方寄りの側で隣接する隣接壁の近傍に位置させた食器洗い機。 A dishwasher main body having an opening at the front, a washing tank provided so as to be freely drawable with respect to the dishwasher main body, and having an opening on the upper side, and accommodated in the washing tank for placing an object to be cleaned such as dishware One or a plurality of discharge paths of a rotary cleaning nozzle whose center of rotation is located approximately at the center of the bottom of the cleaning tank. And water supply selectively supplied to one or a plurality of discharge passages of a non-rotating cleaning nozzle provided on at least one of the rear wall, the side walls on both sides of the four circumferential walls of the cleaning tank, and the front wall Means and
The water diverting means includes a valve chamber forming an inflow portion communicating with the cleaning pump, a water diversion passage having a plurality of outflow passages connected to the valve chamber and communicating with the plurality of discharge passages, and the valve chamber And a valve body that selectively switches the inflowing cleaning water into the plurality of outflow passages, and the non-rotating cleaning nozzle is provided with water distribution means near the bottom of the cleaning tank. A single rising portion from the connection end, a rising portion through the horizontal portion from the connection end, and a horizontal portion through the rising portion from the connection end,
The cleaning pump is provided along one of the rear wall of the four-circumferential wall of the cleaning tank, one of the side walls on both sides, and the front wall, which is close to one of the four-circumferential directions, and the valve chamber In the water means, a rotation support portion that connects and supports the outflow passage corresponding to the connection port concentric with the rotation center of the rotary cleaning nozzle, and the outflow passage corresponding to the connection end of the non-rotation cleaning nozzle are connected. A dishwasher located between adjacent walls adjacent to one of the four peripheral walls along the washing pump on the one side.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2007264964A JP4653794B2 (en) | 2007-10-10 | 2007-10-10 | dishwasher |
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JP2007264964A JP4653794B2 (en) | 2007-10-10 | 2007-10-10 | dishwasher |
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JP2009089971A JP2009089971A (en) | 2009-04-30 |
JP4653794B2 true JP4653794B2 (en) | 2011-03-16 |
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JP2007264964A Expired - Fee Related JP4653794B2 (en) | 2007-10-10 | 2007-10-10 | dishwasher |
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TR201613486A2 (en) * | 2016-09-27 | 2018-04-24 | Arcelik As | ONE DISHWASHER |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002065571A (en) * | 2000-08-29 | 2002-03-05 | Matsushita Electric Ind Co Ltd | Dish washer-dryer |
JP2002209827A (en) * | 2001-01-19 | 2002-07-30 | Matsushita Electric Ind Co Ltd | Dish wash-drier |
JP2002219088A (en) * | 2001-01-26 | 2002-08-06 | Matsushita Electric Ind Co Ltd | Dishwasher |
JP2004129988A (en) * | 2002-10-15 | 2004-04-30 | Matsushita Electric Ind Co Ltd | Dishwasher |
JP2005052215A (en) * | 2003-08-06 | 2005-03-03 | Hitachi Home & Life Solutions Inc | Dishwasher |
JP2005073992A (en) * | 2003-09-01 | 2005-03-24 | Matsushita Electric Ind Co Ltd | Dishwasher |
JP2005087271A (en) * | 2003-09-12 | 2005-04-07 | Matsushita Electric Ind Co Ltd | Dishwasher |
JP2005110901A (en) * | 2003-10-07 | 2005-04-28 | Matsushita Electric Ind Co Ltd | Dishwasher |
JP2005118378A (en) * | 2003-10-17 | 2005-05-12 | Hitachi Home & Life Solutions Inc | Dishwasher |
JP2005143558A (en) * | 2003-11-11 | 2005-06-09 | Toshiba Tec Corp | Dishwasher |
JP2007135904A (en) * | 2005-11-18 | 2007-06-07 | Zojirushi Corp | Dishwasher |
JP2007209771A (en) * | 2007-03-19 | 2007-08-23 | Matsushita Electric Ind Co Ltd | Assembling method of washing tub in dishwasher |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06169821A (en) * | 1992-12-08 | 1994-06-21 | Mitsubishi Electric Corp | Sink cabinet with dish washer |
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2007
- 2007-10-10 JP JP2007264964A patent/JP4653794B2/en not_active Expired - Fee Related
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002065571A (en) * | 2000-08-29 | 2002-03-05 | Matsushita Electric Ind Co Ltd | Dish washer-dryer |
JP2002209827A (en) * | 2001-01-19 | 2002-07-30 | Matsushita Electric Ind Co Ltd | Dish wash-drier |
JP2002219088A (en) * | 2001-01-26 | 2002-08-06 | Matsushita Electric Ind Co Ltd | Dishwasher |
JP2004129988A (en) * | 2002-10-15 | 2004-04-30 | Matsushita Electric Ind Co Ltd | Dishwasher |
JP2005052215A (en) * | 2003-08-06 | 2005-03-03 | Hitachi Home & Life Solutions Inc | Dishwasher |
JP2005073992A (en) * | 2003-09-01 | 2005-03-24 | Matsushita Electric Ind Co Ltd | Dishwasher |
JP2005087271A (en) * | 2003-09-12 | 2005-04-07 | Matsushita Electric Ind Co Ltd | Dishwasher |
JP2005110901A (en) * | 2003-10-07 | 2005-04-28 | Matsushita Electric Ind Co Ltd | Dishwasher |
JP2005118378A (en) * | 2003-10-17 | 2005-05-12 | Hitachi Home & Life Solutions Inc | Dishwasher |
JP2005143558A (en) * | 2003-11-11 | 2005-06-09 | Toshiba Tec Corp | Dishwasher |
JP2007135904A (en) * | 2005-11-18 | 2007-06-07 | Zojirushi Corp | Dishwasher |
JP2007209771A (en) * | 2007-03-19 | 2007-08-23 | Matsushita Electric Ind Co Ltd | Assembling method of washing tub in dishwasher |
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JP2009089971A (en) | 2009-04-30 |
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