JP5147082B2 - Washing machine - Google Patents

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JP5147082B2
JP5147082B2 JP2009273043A JP2009273043A JP5147082B2 JP 5147082 B2 JP5147082 B2 JP 5147082B2 JP 2009273043 A JP2009273043 A JP 2009273043A JP 2009273043 A JP2009273043 A JP 2009273043A JP 5147082 B2 JP5147082 B2 JP 5147082B2
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washing tub
cleaning liquid
casing
washing
liquid
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JP2011115249A (en
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英夫 橋本
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HAPPY CO Ltd
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Description

本発明は、被洗浄物を洗浄する洗濯装置に関するもので、特に、水、石油溶剤或いは有機系溶剤などを含む洗浄液を充填した洗濯槽内で被洗浄物を洗浄する洗濯装置に関する。   The present invention relates to a washing apparatus for washing an object to be washed, and more particularly to a washing apparatus for washing an object to be washed in a washing tub filled with a cleaning liquid containing water, petroleum solvent, organic solvent, or the like.

従来の洗濯装置として、鉛直方向に回転軸を形成する洗濯槽を備えるものだけでなく、水平方向或いは水平方向から傾斜させた方向(以下、単に「水平傾斜方向」と呼ぶ)に回転軸を形成する洗濯槽を備えるものが、広く普及されている。鉛直方向に回転軸を形成する洗濯槽を備えた洗濯装置は、洗濯槽の底部に設置されたパルセータを回転させて、洗濯槽内の洗浄液に回転流(渦巻き水流)を発生させる。そして、発生した洗浄液の回転流の力によって、衣類などの被洗浄物同士が擦り合わさることで(もみ洗いの原理)、被洗浄物が洗浄される。一方、水平方向或いは水平傾斜方向に回転軸を形成する洗濯槽を備えた洗濯装置は、洗濯槽を回転させることで、洗濯槽の内壁面に突設された羽根により被洗浄物を洗濯槽の上側に移動させた後、その被洗浄物を自重で落下させる。この被洗浄物が落下したときに、洗濯槽の内壁面との衝突による衝撃力によって(たたき洗いの原理)、被洗浄物が洗浄される。   As a conventional washing apparatus, not only a washing tub that forms a rotation axis in the vertical direction, but also a rotation axis is formed in a horizontal direction or a direction inclined from the horizontal direction (hereinafter simply referred to as “horizontal inclination direction”). What is equipped with the washing tub to do is prevailing widely. A washing apparatus including a washing tub that forms a rotation axis in the vertical direction rotates a pulsator installed at the bottom of the washing tub to generate a rotating flow (swirl water flow) in the washing liquid in the washing tub. The objects to be cleaned such as clothes are rubbed against each other by the force of the generated rotational flow of the cleaning liquid (the principle of fir washing), thereby cleaning the objects to be cleaned. On the other hand, a washing apparatus having a washing tub that forms a rotation axis in a horizontal direction or a horizontal inclination direction rotates the washing tub so that the object to be cleaned is washed by the blades protruding from the inner wall surface of the washing tub. After being moved upward, the object to be cleaned is dropped by its own weight. When the object to be cleaned falls, the object to be cleaned is cleaned by the impact force caused by the collision with the inner wall surface of the washing tub (the principle of tapping).

このような洗濯装置による洗濯に利用される洗浄液は、水、或いは水に界面活性剤を混入させた溶剤などの水系の洗浄液と、石油系溶剤、或いは有機系溶剤などの非水系の洗浄液とに分類される。水系の洗浄液を利用した場合、被洗浄物に付着した水溶性の汚れが洗浄されるが、被洗浄物の生地や繊維によっては硬化や損傷を受けるため、洗浄後の被洗浄物の状態を悪くしてしまう。一方、非水系の洗浄液を利用した場合、水系の洗浄液のような被洗浄物の損傷の危険性を回避できるが、水溶性の汚れを確実に洗浄できない。   The cleaning liquid used for washing by such a washing apparatus is water or a water-based cleaning liquid such as a solvent in which a surfactant is mixed in water, and a non-aqueous cleaning liquid such as a petroleum solvent or an organic solvent. being classified. When water-based cleaning liquid is used, water-soluble dirt attached to the object to be cleaned is washed, but depending on the material and fibers of the object to be cleaned, it may be hardened or damaged, so that the condition of the object to be cleaned after cleaning is deteriorated. Resulting in. On the other hand, when a non-aqueous cleaning liquid is used, the risk of damaging an object to be cleaned such as an aqueous cleaning liquid can be avoided, but water-soluble dirt cannot be reliably cleaned.

これに対して、本出願人は、中心軸が水平方向となる洗濯槽がその内部に設置されたケーシング内を洗浄液で充填させて、洗濯槽を回転させることで、洗濯槽内に収容された被洗浄物を洗浄液中で浮遊させるようにして洗浄する洗濯方法(特許文献1参照)及び洗濯装置(特許文献2)を提案した。この特許文献1の洗濯方法及び特許文献2の洗濯装置ではそれぞれ、内壁面に周方向に連続した凹凸が設けられた洗濯槽を回転させることで、洗濯槽の内壁面側の洗浄液において、洗濯槽の内壁面の凹凸毎の渦流が発生する。この渦流が洗濯槽の内壁面に沿って連続して形成されることで、洗濯槽内の洗浄液には、洗濯槽の回転に沿った大きな流れが発生する。このようにして発生する渦流と大きな流れとが被洗浄物に影響を与えるため、被洗浄物は、洗濯槽内で漂うように浮遊して広がる。そのため、被洗浄物における洗浄液との接触面が広くなるだけでなく、被洗浄物への洗浄液の浸透力が高まり、結果、被洗浄物の汚れに対する洗浄液による洗浄効果が高まった。   On the other hand, the present applicant was accommodated in the washing tub by filling the inside of the casing where the washing tub with the central axis in the horizontal direction was filled with the cleaning liquid and rotating the washing tub. The laundry method (refer patent document 1) and the washing apparatus (patent document 2) which wash | cleaned the to-be-cleaned object by making it float in a washing | cleaning liquid were proposed. In each of the washing method of Patent Document 1 and the washing apparatus of Patent Document 2, the washing tub having the inner wall surface provided with continuous irregularities on the inner wall surface is rotated, so that the washing tub in the washing liquid on the inner wall surface side of the washing tub is rotated. An eddy current is generated for each uneven surface of the inner wall. Since this swirl is continuously formed along the inner wall surface of the washing tub, a large flow along the rotation of the washing tub is generated in the cleaning liquid in the washing tub. Since the swirl and the large flow generated in this way affect the object to be cleaned, the object to be cleaned floats and spreads so as to float in the washing tub. Therefore, not only the contact surface with the cleaning liquid in the object to be cleaned is widened, but also the penetration of the cleaning liquid into the object to be cleaned is increased, and as a result, the cleaning effect of the cleaning liquid on the dirt of the object to be cleaned is increased.

即ち、本出願人は、特許文献1の洗濯方法及び特許文献2の洗濯装置のように、ケーシング内に充填させた洗浄液に対して、洗濯槽の回転に基づく圧力分布を形成して洗浄を行うことで、被洗浄物の損傷を防ぐとともに、その洗浄効果を高めることができた。又、洗浄液に形成される圧力分布が、被洗浄物の洗浄液中での挙動に影響するため、これらの効果を十分に発揮するためには、ケーシング内に充填させた洗浄液に対して、その圧力分布を効果的に形成する必要がある。   That is, the present applicant performs the cleaning by forming a pressure distribution based on the rotation of the washing tub with respect to the cleaning liquid filled in the casing as in the washing method of Patent Document 1 and the washing apparatus of Patent Document 2. As a result, it was possible to prevent the object to be cleaned from being damaged and enhance its cleaning effect. In addition, since the pressure distribution formed in the cleaning liquid affects the behavior of the object to be cleaned in the cleaning liquid, in order to fully exhibit these effects, the pressure is applied to the cleaning liquid filled in the casing. It is necessary to form the distribution effectively.

そして、本出願人は、特許文献1及び特許文献2それぞれの構成について更なる検証を行った結果、上述したように、洗濯槽の内壁面に周方向に連続して設けられた凹凸面の回転により、洗浄液内に圧力分布が形成されることが明らかになった。即ち、洗濯槽には、その回転方向に沿って凹凸面が形成される。そのため、洗濯槽が回転したとき、凹部内の洗浄液は凸部によって回転方向に移動しようとするが、洗浄液自身は滞留しようとすることで、その凹部内に渦巻状の旋回流が発生する。   And as a result of having further verified about the composition of each of patent documents 1 and patent documents 2, this applicant, as mentioned above, rotation of the uneven surface provided continuously in the circumferential direction on the inner wall surface of the washing tub This revealed that a pressure distribution was formed in the cleaning liquid. That is, an uneven surface is formed in the washing tub along the rotation direction. For this reason, when the washing tub rotates, the cleaning liquid in the concave portion tends to move in the rotation direction by the convex portion, but the cleaning liquid itself tends to stay, so that a spiral swirl flow is generated in the concave portion.

この渦巻き状の旋回流が、各凹部に形成されることで、ケーシング内に充填させた洗浄液は、洗濯槽の径方向に略同心円状に異なる流速で流れて、洗濯槽の径方向に圧力分布が形成される。洗濯槽の径方向に対して形成される圧力分布が、洗濯槽内で被洗浄物を浮遊させるため、結果的に、洗浄液中で浮遊して漂う被洗浄物を拡げることとなり、洗浄効果を促進するとともに、被洗浄物の損傷を防止できる。   The spiral swirling flow is formed in each recess, so that the cleaning liquid filled in the casing flows at different flow rates substantially concentrically in the radial direction of the washing tub, and the pressure distribution in the radial direction of the washing tub. Is formed. The pressure distribution formed in the radial direction of the washing tub floats the object to be washed in the washing tub, and as a result, the object to be washed floating in the washing liquid is expanded and the washing effect is promoted. In addition, the object to be cleaned can be prevented from being damaged.

特許3841822号公報Japanese Patent No. 3841822 特許3863176号公報Japanese Patent No. 3863176

この特許文献1及び特許文献2それぞれでは、上述したように、ケーシング内に洗浄液を充填したケーシング内で洗濯槽を回転することで、洗浄液中で被洗浄物を浮遊させて洗浄する。しかしながら、ダウンジャケットなどのように、比重が小さい被洗浄物を洗浄する場合、その重力に比べて浮力が大きく働くため、被洗浄物が、洗濯槽の上部(天部)に浮いてしまう。そのため、比重が小さい被洗浄物を洗浄する場合は、被洗浄物に働く浮力により、洗濯槽の上部に浮いてしまうこととなり、その結果、回転している洗濯槽の内壁面に被洗浄物が接触することとなる。よって、洗濯槽の上部において、被洗浄物が洗濯槽の内壁面との衝突を繰り返すこととなり、その結果、被洗浄物の生地に損傷を与えることとなる。   In each of Patent Document 1 and Patent Document 2, as described above, the washing tub is rotated in the casing filled with the cleaning liquid in the casing, whereby the object to be cleaned is floated and cleaned in the cleaning liquid. However, when washing an object to be cleaned such as a down jacket, the buoyancy works more than the gravity, so the object to be washed floats above the washing tub. Therefore, when washing an object to be cleaned having a small specific gravity, the object to be cleaned will float on the upper part of the washing tub due to the buoyancy acting on the object to be cleaned. It will come into contact. Therefore, in the upper part of the washing tub, the object to be cleaned repeatedly collides with the inner wall surface of the washing tub, and as a result, the cloth of the object to be cleaned is damaged.

このような問題に鑑みて、本発明は、比重が小さい被洗浄物を洗浄液中で拡がるように浮遊させるとともに、洗濯槽への衝突を防ぐことができる洗濯装置を提案することを目的とする。   In view of such a problem, an object of the present invention is to propose a washing apparatus capable of floating an object to be cleaned having a small specific gravity so as to spread in a cleaning liquid and preventing collision with a washing tub.

上記目的を達成するために、本発明の洗濯装置は、鉛直方向より水平方向に傾いた方向或いは水平方向となる回転軸により回転するとともに被洗浄物が内部に収容される洗濯槽であって、該洗濯槽の内壁面において径方向に凹凸させた凹凸曲面を設けた洗濯槽と、該洗濯槽を覆うとともに洗浄液が供給されるケーシングと、該ケーシングに前記洗浄液を供給する給液流路と、該ケーシングから前記洗浄液を排出する排液流路とを備え、被洗浄物を洗浄液中で漂うにして広がりながら浮遊させて洗浄する洗濯装置において、前記ケーシング内に供給された洗浄液の液位を測定する液位センサと、洗浄液の前記ケーシング内への供給及び循環と前記洗濯槽の回転とを制御して、前記被洗浄物の洗浄動作を制御する制御部と、を備え、
前記被洗浄物を洗浄する際、前記制御部は、前記ケーシング内の洗浄液の液位を、前記洗濯槽の中心軸以上の高さ位置で、前記洗濯槽に投入される被洗浄物の種類に応じた前記ケーシング内の洗浄液の液位を設定し、前記液位センサの検出した値に基づいて、前記給液流路によって前記ケーシングに供給される洗浄液の流量と、前記排液流路によって前記ケーシングから排出する洗浄液の流量とを制御して、前記ケーシング内の洗浄液の液位を設定された液位とした状態で、前記洗濯槽を回転させることを特徴とする。
In order to achieve the above object, the washing apparatus of the present invention is a washing tub that is rotated by a rotating shaft that is inclined in the horizontal direction or in the horizontal direction from the vertical direction and in which an object to be cleaned is accommodated . A washing tub provided with a concave and convex curved surface that is undulated in the radial direction on the inner wall surface of the washing tub, a casing that covers the washing tub and is supplied with a cleaning liquid, a liquid supply passage that supplies the cleaning liquid to the casing, A drainage flow path for discharging the cleaning liquid from the casing, and measuring a liquid level of the cleaning liquid supplied into the casing in a washing apparatus that floats and cleans an object to be cleaned while floating in the cleaning liquid A liquid level sensor that controls the supply and circulation of the cleaning liquid into the casing and the rotation of the washing tub to control the cleaning operation of the object to be cleaned,
When cleaning the object to be cleaned, the control unit sets the level of the cleaning liquid in the casing to the type of the object to be cleaned that is put into the washing tub at a height position higher than the central axis of the washing tub. In response, the liquid level of the cleaning liquid in the casing is set, and based on the value detected by the liquid level sensor, the flow rate of the cleaning liquid supplied to the casing by the liquid supply channel and the drainage channel The flow rate of the cleaning liquid discharged from the casing is controlled, and the washing tub is rotated in a state where the liquid level of the cleaning liquid in the casing is set to a set liquid level.

これらの洗濯装置において、前記給液流路が、前記ケーシングにおける前記洗濯槽の直上に設置されるものとしてもよいし、前記給液流路が、前記ケーシングにおける前記洗濯槽の直上から外れた位置に設置されるものとしてもよい。   In these washing apparatuses, the liquid supply flow path may be installed immediately above the washing tub in the casing, or the liquid supply flow path is located at a position off the direct upper side of the washing tub in the casing. It is good also as what is installed in.

本発明によると、液位センサによりケーシング内の洗浄液の液位を測定し、被洗浄物の種類に応じた液位で、被洗浄物の洗浄を行うことができる。これにより、洗浄液中を漂うようにして拡がりながら洗浄される被洗浄物が、その洗浄液の液位により、浮遊する範囲が制限される。そのため、比重の小さい被洗浄物を洗浄する場合においては、ケーシング内の洗浄液の液位を低くすることにより、洗浄液中で浮き上がって洗濯槽に衝突することを防止できる。   According to the present invention, the liquid level of the cleaning liquid in the casing is measured by the liquid level sensor, and the object to be cleaned can be cleaned at a liquid level corresponding to the type of the object to be cleaned. As a result, the range in which the object to be cleaned, which is spread while floating in the cleaning liquid, floats is limited by the liquid level of the cleaning liquid. For this reason, when cleaning an object to be cleaned having a low specific gravity, the level of the cleaning liquid in the casing can be lowered to prevent the cleaning liquid from floating and colliding with the washing tub.

は、本発明の洗濯装置の基本構成示す概略斜視図である。These are the schematic perspective views which show the basic composition of the washing apparatus of this invention. は、図1の洗濯装置のケーシング内に設けられる洗濯槽の構成を示す概略斜視図である。FIG. 2 is a schematic perspective view showing a configuration of a washing tub provided in a casing of the washing apparatus of FIG. 1. は、図2に示す洗濯槽の回転軸に垂直な方向における洗濯槽の概略断面図である。FIG. 3 is a schematic cross-sectional view of the washing tub in a direction perpendicular to the rotation axis of the washing tub shown in FIG. 2. は、図3に示す洗濯槽の要部拡大図である。These are the principal part enlarged views of the washing tub shown in FIG. は、本発明の第1の実施形態の洗濯装置の概略構成を示す図である。These are figures which show schematic structure of the washing apparatus of the 1st Embodiment of this invention. は、本発明の第2の実施形態の洗濯装置の概略構成を示す図である。These are figures which show schematic structure of the washing apparatus of the 2nd Embodiment of this invention.

<基本構成>
本発明の洗濯装置の基本構成について、図面を参照して説明する。図1は、本実施形態の洗濯装置の構成を示す概略斜視図であり、図2は、図1の洗濯装置における洗濯槽の構成を示す概略斜視図である。又、図3は、図2に示す洗濯槽の回転軸に垂直な方向における洗濯槽の概略断面図であり、図4は、図3における要部拡大図である。
<Basic configuration>
The basic configuration of the washing apparatus of the present invention will be described with reference to the drawings. FIG. 1 is a schematic perspective view showing the configuration of the washing apparatus of the present embodiment, and FIG. 2 is a schematic perspective view showing the configuration of the washing tub in the washing apparatus of FIG. 3 is a schematic cross-sectional view of the washing tub in a direction perpendicular to the rotation axis of the washing tub shown in FIG. 2, and FIG. 4 is an enlarged view of a main part in FIG.

図1に示すように、本発明の洗濯装置は、洗浄液が内部に供給されるケーシング1と、このケーシング1内部に設けられる円筒形状の洗濯槽2と、ケーシング1の前面側を開口して設けられた被洗浄物の投入口11を覆う扉部3と、ケーシング1を貫通して洗濯槽2に接続された回転軸4と、回転軸4を通じて回転力を伝達させて洗濯槽2を回転させる駆動機構5と、を備える。図1示すケーシング1及び洗濯槽2のそれぞれは、その中心軸が鉛直方向から水平方向に傾斜した円筒形状で構成されている。即ち、洗濯装置2は、鉛直方向から水平方向に傾斜した中心軸を回転軸として、ケーシング1内で回転する。尚、ケーシング1は、洗濯槽2と同心円状の断面を備える円筒形状に限られるものではなく、その内部で洗濯槽2が自由に回転できる形状であればよい。   As shown in FIG. 1, the washing apparatus of the present invention is provided with a casing 1 into which cleaning liquid is supplied, a cylindrical washing tub 2 provided inside the casing 1, and a front side of the casing 1 being opened. The door 3 that covers the inlet 11 for the object to be cleaned, the rotary shaft 4 that passes through the casing 1 and is connected to the washing tub 2, and the rotational force is transmitted through the rotary shaft 4 to rotate the washing tub 2. Drive mechanism 5. Each of the casing 1 and the washing tub 2 shown in FIG. 1 has a cylindrical shape whose central axis is inclined in the horizontal direction from the vertical direction. That is, the washing apparatus 2 rotates in the casing 1 with the central axis inclined in the horizontal direction from the vertical direction as a rotation axis. The casing 1 is not limited to a cylindrical shape having a cross section concentric with the washing tub 2, and may be any shape as long as the washing tub 2 can freely rotate therein.

扉部3は、図1に示すように、その一部が投入口11よりケーシング1内に挿入される突起部を有し、扉部3により投入口11を閉じたときに、扉部3の突起部が投入口11に嵌入することで、外部に洗浄液が漏れないように、ケーシング1が扉部3により密封される。又、扉部3は、ケーシング1を閉じたときに、作業者がケーシング1内部を確認できるように、ガラスなどの透明部材で構成された窓部を備えるものとしてもよい。これにより、作業者は、ケーシング1内に供給される洗浄液の量や、洗浄中の被洗浄物の様子などを視認できる。駆動機構5は、回転軸4を備えた電動モータで構成するものとしてもよいし、回転軸4を間接的に回転させる電動モータと、電動モータの回転を回転軸4に伝達させるプーリ及びベルトとによって構成するものとしてもよい。又、この駆動機構5は、ケーシング1の外部に設けられるため、回転軸4は、ケーシング1に挿入されて洗濯槽2と接続される。よって、ケーシング1は、この回転軸4が挿入される軸受部が設けられる。この軸受部は、ケーシング1内の洗浄液が外部に漏れないようにするシール構造を備える。   As shown in FIG. 1, a part of the door 3 has a protrusion inserted into the casing 1 from the insertion port 11, and when the insertion port 11 is closed by the door 3, The casing 1 is sealed by the door 3 so that the cleaning liquid does not leak to the outside by fitting the protrusion into the insertion port 11. Moreover, the door part 3 is good also as what is provided with the window part comprised with transparent members, such as glass, so that an operator can confirm the inside of the casing 1 when the casing 1 is closed. Thereby, the operator can visually recognize the amount of the cleaning liquid supplied into the casing 1 and the state of the object to be cleaned. The drive mechanism 5 may be configured by an electric motor including the rotation shaft 4, an electric motor that indirectly rotates the rotation shaft 4, and a pulley and a belt that transmit the rotation of the electric motor to the rotation shaft 4. It is good also as what comprises. Since the drive mechanism 5 is provided outside the casing 1, the rotating shaft 4 is inserted into the casing 1 and connected to the washing tub 2. Therefore, the casing 1 is provided with a bearing portion into which the rotating shaft 4 is inserted. The bearing portion includes a seal structure that prevents the cleaning liquid in the casing 1 from leaking to the outside.

このように構成される洗濯装置における洗濯槽2の構成について、図2〜4を参照して以下に説明する。図2に示すように、その回転軸が鉛直方向から水平方向に傾斜した円筒形状に構成された洗濯槽2は、一方の底面に開口された開口部21を備えた籠形状である。洗濯槽2の内壁面には、洗濯槽2の回転軸に対して垂直な断面が円周方向に連続した凹凸形状となる凹凸曲面22と、洗濯槽2の回転軸の方向を長手方向として開口したスリット23とを備える。そして、図3に示すように、洗濯槽2の回転軸に対して垂直な洗濯槽2の内壁面の断面における円周方向に沿って、凹凸曲面22とスリット23とが交互に形成される。   The structure of the washing tub 2 in the washing apparatus configured as described above will be described below with reference to FIGS. As shown in FIG. 2, the washing tub 2 having a cylindrical shape whose rotation axis is inclined in the horizontal direction from the vertical direction has a basket shape having an opening 21 opened on one bottom surface. On the inner wall surface of the washing tub 2, an uneven curved surface 22 having a concavo-convex shape in which a cross section perpendicular to the rotation axis of the washing tub 2 is continuous in the circumferential direction, and the direction of the rotation axis of the washing tub 2 is opened as a longitudinal direction. The slit 23 is provided. And as shown in FIG. 3, the uneven | corrugated curved surface 22 and the slit 23 are alternately formed along the circumferential direction in the cross section of the inner wall surface of the washing tub 2 perpendicular | vertical with respect to the rotating shaft of the washing tub 2. As shown in FIG.

洗濯槽2の内壁面に構成される凹凸曲面22は、図2に示すように、洗濯槽2の回転軸に対して垂直となる凹凸形状による断面を洗濯槽2の回転軸方向に沿って連続させた曲面によって形成される。即ち、洗濯槽2の回転軸方向をそれぞれの長手方向とする凹部22a及び凸部22b(図3参照)が、洗濯槽2の回転軸に垂直な円周方向に沿って交互に連続して形成されることで、洗濯槽2の内壁面に凹凸曲面22が構成される。又、スリット23は、洗濯槽2の内壁から外壁に向かって貫通するため、このスリット23によって、洗濯槽2内の洗浄液がケーシング1と洗濯槽2との間の領域に排出されるとともに、ケーシング1と洗濯槽2との間の領域内の洗浄液が洗濯槽2内に流入される。   As shown in FIG. 2, the uneven curved surface 22 formed on the inner wall surface of the laundry tub 2 has a cross-section with a concavo-convex shape perpendicular to the rotation axis of the laundry tub 2 along the rotation axis direction of the laundry tub 2. Formed by curved surfaces. That is, the concave portions 22a and the convex portions 22b (see FIG. 3) whose longitudinal directions are the rotation axis directions of the washing tub 2 are alternately and continuously formed along the circumferential direction perpendicular to the rotation axis of the washing tub 2. As a result, the concave and convex curved surface 22 is formed on the inner wall surface of the washing tub 2. Further, since the slit 23 penetrates from the inner wall toward the outer wall of the washing tub 2, the cleaning liquid in the washing tub 2 is discharged to an area between the casing 1 and the washing tub 2 by the slit 23, and the casing The cleaning liquid in the region between 1 and the washing tub 2 flows into the washing tub 2.

尚、図2の構成では、スリット23を、洗濯槽2の回転軸方向を長手方向として開口させたものとしたが、洗濯槽2の回転軸方向に対して配列させた複数の孔によって形成されるものとしてもよい。又、このスリット23は、洗濯槽2の周面となる内壁面だけでなく、開口面21に対抗した底面24にも設けられるものとしてもよいし、ケーシング1(図1参照)と開口面21との間に間隙を設けて構成してもよい。そして、ケーシング1と開口面21との間又は底面24だけにスリット23を設けるものとしてもよい。更に、洗濯槽2の構成についても、その内壁面に凹凸曲目22とスリット23とが交互に形成されるものに限らず、洗濯槽2の内壁面の全周面にわたって、凹凸曲面22が形成されるとともに、凹部22a(図3参照)の一部にスリット23が設けられる構成としてもよい。   In the configuration of FIG. 2, the slit 23 is opened with the rotation axis direction of the washing tub 2 as the longitudinal direction, but is formed by a plurality of holes arranged with respect to the rotation axis direction of the washing tub 2. It is good also as a thing. In addition, the slit 23 may be provided not only on the inner wall surface serving as the peripheral surface of the washing tub 2 but also on the bottom surface 24 opposed to the opening surface 21, or the casing 1 (see FIG. 1) and the opening surface 21. A gap may be provided between the two. And it is good also as what provides the slit 23 between the casing 1 and the opening surface 21, or only in the bottom face 24. FIG. Furthermore, the configuration of the washing tub 2 is not limited to the one in which the concave and convex curvatures 22 and the slits 23 are alternately formed on the inner wall surface, and the concave and convex curved surface 22 is formed over the entire peripheral surface of the inner wall surface of the washing tub 2. In addition, the slit 23 may be provided in a part of the recess 22a (see FIG. 3).

このように構成される洗濯槽2において、図3に示すように、洗濯槽2の周方向に隣接するスリット23の間に設けられた凹凸曲面22は、複数の凹部22aと複数の凸部22bとが交互に形成された構成となる。このとき、図4に示すように、凹部22aの底部221、凸部22bの頂部222、及び凹部22aと凸部22bとの接続部223それぞれにおける形状の変化を緩やかなものとすることで、凹凸曲面22の周方向の断面による曲線を滑らかなものとする。これにより、凹凸曲面22が洗濯槽2の周方向に沿って回転したとき、凹部22aの内側の流体に対して、凸部22bが流れを形成する際、その流れに与える乱れを抑制できる。この凹凸曲面22は、洗濯槽2の周方向に対して同じ幅に形成されるものとしてもよいし、図3に示すように、洗濯槽2の周方向に沿った幅が異なるものとしてもよい。尚、この凹凸曲面22は、湾曲させた薄肉の金属板で形成し、スリット23を設けられた円筒籠状の洗濯槽2の内壁面に取り付けられるものとしてもよい。   In the washing tub 2 configured in this way, as shown in FIG. 3, the uneven curved surface 22 provided between the slits 23 adjacent in the circumferential direction of the washing tub 2 includes a plurality of concave portions 22 a and a plurality of convex portions 22 b. Are alternately formed. At this time, as shown in FIG. 4, by changing the shape of each of the bottom part 221 of the concave part 22a, the top part 222 of the convex part 22b, and the connecting part 223 between the concave part 22a and the convex part 22b, The curve by the circumferential cross section of the curved surface 22 is made smooth. Thereby, when the uneven | corrugated curved surface 22 rotates along the circumferential direction of the washing tub 2, when the convex part 22b forms a flow with respect to the fluid inside the concave part 22a, the disturbance given to the flow can be suppressed. The uneven curved surface 22 may be formed to have the same width with respect to the circumferential direction of the washing tub 2, or may have different widths along the circumferential direction of the washing tub 2, as shown in FIG. . The uneven curved surface 22 may be formed of a curved thin metal plate and attached to the inner wall surface of the cylindrical basket-like washing tub 2 provided with the slits 23.

このような構成の洗濯槽2が、回転軸4を通じて駆動機構5から伝達された回転力によって、洗浄液が供給されたケーシング1内で回転して、洗濯槽2内に収容された被洗浄物の洗浄や濯ぎが成される。このときの洗濯槽2内部における洗浄液の挙動と被洗浄物の関係について、図3及び図4を参照して簡単に説明する。図4に示す矢印Aの方向に洗濯槽2が回転するとき、この回転方向(矢印A)に対して凹部22aよりも後ろ側の凸部22bが、凹部22aの位置に移動するため、凹部22aの両側にある2つの凸部22bと凹部22aに囲まれた領域R内の洗浄液が回転方向(矢印A)に移動しようとする。しかしながら、領域R内において凸部22bの頂部222に近い側では、凹部22aの両側に挟まれた凸部22bの間隔が広くなるため、凸部22bの移動による影響が小さくなる。そのため、凸部22bの頂部222に近い側の洗浄液は停滞しようとして、矢印Aに沿って回転する凸部22bに沿った大きな流れを形成する。   The washing tub 2 configured as described above is rotated in the casing 1 supplied with the cleaning liquid by the rotational force transmitted from the drive mechanism 5 through the rotating shaft 4, and the object to be cleaned accommodated in the washing tub 2 is rotated. Cleaning and rinsing are performed. The relationship between the behavior of the cleaning liquid in the washing tub 2 and the object to be cleaned at this time will be briefly described with reference to FIGS. When the washing tub 2 rotates in the direction of the arrow A shown in FIG. 4, the convex portion 22b behind the concave portion 22a moves to the position of the concave portion 22a with respect to the rotational direction (arrow A). The cleaning liquid in the region R surrounded by the two convex portions 22b and the concave portion 22a on both sides of the liquid crystal tends to move in the rotation direction (arrow A). However, in the region R, on the side close to the top portion 222 of the convex portion 22b, the interval between the convex portions 22b sandwiched between both sides of the concave portion 22a is widened, so that the influence of the movement of the convex portion 22b is reduced. Therefore, the cleaning liquid on the side close to the top portion 222 of the convex portion 22 b tends to stagnate and forms a large flow along the convex portion 22 b that rotates along the arrow A.

このように、洗濯槽2の内壁面に近傍の洗浄液は、凹凸曲面22の回転により、その回転方向(矢印A)に沿った大きな流れを形成するとともに、凹凸曲面22における凹部22a及び凸部22bで形成される各領域R内に、凹部22a及び凸部22bに沿った渦流を形成する。一方、洗濯槽2の回転軸側の領域における洗浄液は、凹凸曲面22から離れるため、この凹凸曲面22の回転による影響が小さい。これらのことから、凹凸曲面22の回転により形成される回転方向(矢印A)に沿った大きな流れと凹部22a及び凸部22bに沿った渦流とが、洗濯槽2の中心軸に向かって径方向に伝播する。   As described above, the cleaning liquid in the vicinity of the inner wall surface of the washing tub 2 forms a large flow along the rotation direction (arrow A) due to the rotation of the concave and convex curved surface 22, and the concave portion 22 a and the convex portion 22 b on the concave and convex curved surface 22. In each region R formed by (1), a vortex along the concave portion 22a and the convex portion 22b is formed. On the other hand, since the cleaning liquid in the area on the rotating shaft side of the washing tub 2 is separated from the uneven curved surface 22, the influence of the rotation of the uneven curved surface 22 is small. From these facts, the large flow along the rotation direction (arrow A) formed by the rotation of the concave and convex curved surface 22 and the vortex flow along the concave portion 22 a and the convex portion 22 b are radially directed toward the central axis of the washing tub 2. Propagate to.

よって、洗濯槽2内の洗浄液は、洗濯槽2の回転軸に対して垂直な断面において、洗濯槽2の内壁面から回転軸に向かって、異なる流速による洗浄液の流れの層が形成される。即ち、洗濯槽2内では、内壁面側に、最も速い流速となる洗浄液の流れの層が周方向に形成され、洗濯槽2の回転軸に向かって、その流速が遅くなる洗浄液の流れの層が形成される。これによって、洗濯槽2内を充填される洗浄液は、内壁面から回転軸に向かう径方向に対して、圧力分布が形成されることとなり、この圧力分布に基づいて被洗浄物が洗浄液中を漂う。即ち、被洗浄物は、洗浄液中に発生する圧力分布や浮力などの影響によって、洗濯槽2内の洗浄液中で、無重力状態で遊泳しているような挙動を示す。よって、この洗濯槽2内の被洗浄物は、自身も拡がりながら洗浄液中を浮遊することとなる。   Therefore, the washing liquid in the washing tub 2 forms a layer of washing liquid flow at different flow rates from the inner wall surface of the washing tub 2 toward the rotation axis in a cross section perpendicular to the rotation axis of the washing tub 2. That is, in the washing tub 2, a cleaning liquid flow layer having the fastest flow velocity is formed on the inner wall surface in the circumferential direction, and the cleaning liquid flow layer has a slower flow velocity toward the rotation axis of the washing tub 2. Is formed. As a result, the cleaning liquid filled in the washing tub 2 forms a pressure distribution in the radial direction from the inner wall surface toward the rotation axis, and the object to be cleaned drifts in the cleaning liquid based on the pressure distribution. . That is, the object to be cleaned behaves like swimming in a weightless state in the cleaning liquid in the washing tub 2 due to the influence of pressure distribution and buoyancy generated in the cleaning liquid. Therefore, the object to be cleaned in the washing tub 2 floats in the cleaning liquid while spreading itself.

又、洗濯槽2内の洗浄液に流速の異なる層が形成されて圧力分布ができるため、洗浄液中の被洗浄物は、洗濯槽2の内壁面側に移動した場合、洗浄液の速い流れに影響された挙動を示す。即ち、回転方向の大きな流れに加えて、凹凸曲面22によって形成される渦流が存在することから、この洗浄液の流れによって、被洗浄物が洗濯槽2の内壁面に衝突が防がれるだけでなく、回転軸側に強制的に移動させられる。更に、洗浄液の流速が異なることから圧力分布が形成されるため、各層の流速の影響を受ける被洗浄物は、洗浄液中を漂うことで拡がる。これにより、被洗浄物は、洗浄液の液体分子と接触する面が拡がるため、洗浄液による洗浄及び濯ぎの効果が高くなるだけでなく、被洗浄物に対して、洗浄液の流れに基づく捻りや洗濯槽への衝突などの負担が軽減されるため、洗浄による損傷が低減される。   Moreover, since layers having different flow rates are formed in the cleaning liquid in the washing tub 2 and pressure distribution is generated, when the object to be cleaned in the cleaning liquid moves to the inner wall surface side of the washing tub 2, it is affected by the fast flow of the cleaning liquid. Show the behavior. That is, in addition to the large flow in the rotation direction, there is a vortex formed by the concave and convex curved surface 22, so that the flow of the cleaning liquid not only prevents the object to be cleaned from colliding with the inner wall surface of the washing tub 2. , It is forcibly moved to the rotating shaft side. Further, since the pressure distribution is formed because the flow rates of the cleaning liquid are different, the object to be cleaned that is affected by the flow speed of each layer spreads by drifting in the cleaning liquid. As a result, the surface of the object to be cleaned that comes into contact with the liquid molecules of the cleaning liquid expands, so that not only the cleaning and rinsing effect of the cleaning liquid is enhanced, but also the object to be cleaned is twisted based on the flow of the cleaning liquid and the washing tub Damage due to cleaning is reduced because the burden of collision with the body is reduced.

この洗濯槽2内に洗浄液を満たした場合、比重の小さいダウンコートなどのように、浮力が大きく働く被洗浄物の場合は、洗浄及び濯ぎを行うために洗濯槽2を回転させたとき、被洗浄物が洗濯槽2の上部に浮いて、洗濯槽2の上部の内壁面に接触してしまう。よって、以下の各実施形態で説明するように、浮力の大きい被洗浄物の洗濯槽2への接触を防ぐために、洗濯槽2を洗浄液で満たすことなく、洗濯槽2の上部に空気の層を形成させる。即ち、洗浄液の液位が、洗濯槽2の内壁面の最下位から内周径以上の位置と最上位よりも低い位置とされ、洗浄液の液位から洗濯槽2の最上位の間に空気の層が形成される。このように洗濯槽2中に空気の層を形成することで、洗浄液中を浮遊する被洗浄物は、洗浄液の液位よりも高い位置に移動することがないため、洗濯槽2の上部の内壁面に被洗浄物が衝突することを防止できる。   When the washing tub 2 is filled with a cleaning solution, such as a down coat having a small specific gravity, the object to be washed has a large buoyancy, and when the washing tub 2 is rotated for washing and rinsing, The washing object floats on the upper part of the washing tub 2 and comes into contact with the inner wall surface of the upper part of the washing tub 2. Therefore, as will be described in each of the following embodiments, an air layer is formed on the upper portion of the washing tub 2 without filling the washing tub 2 with the washing liquid in order to prevent the washing object having a large buoyancy from coming into contact with the washing tub 2. Let it form. That is, the liquid level of the cleaning liquid is set to a position equal to or larger than the inner peripheral diameter from the lowest position of the inner wall surface of the washing tub 2 and a position lower than the uppermost position, and air flows between the liquid level of the cleaning liquid and the uppermost position of the washing tub 2. A layer is formed. By forming an air layer in the washing tub 2 in this way, the object to be washed floating in the washing liquid does not move to a position higher than the liquid level of the washing liquid. It is possible to prevent the object to be cleaned from colliding with the wall surface.

このように洗濯槽2を回転させて、洗濯槽2内の洗浄液に圧力分布を形成して、洗浄液中で被洗浄物を拡がるように浮遊させることで、被洗浄物の洗浄や濯ぎを行える。尚、濯ぎの場合は、洗浄液の代わりに濯ぎ用の水が供給される。この被洗浄物の洗浄や濯ぎを行うための洗濯槽2の回転については、一定方向の回転のみを所定時間連続して行うものとしてもよいし、一定方向の回転を所定時間毎に断続して行うものとしてもよい。即ち、洗濯槽2を正転方向(或いは逆転方向)に一定時間連続して回転させてもよいし、洗濯槽2を正転方向(或いは逆転方向)に回転させる回転期間と洗濯槽2の回転の停止期間とを一定期間が経過するまで繰り返し行うものとしてもよい。更に、洗浄や濯ぎのための洗濯槽2の回転を断続的に行う場合において、断続的に開始される回転毎に、その回転方向を逆方向に切り換えるものとしてもよい。即ち、洗濯槽2を回転させ回転させる回転期間と洗濯槽2の回転の停止期間とを一定期間が経過するまで繰り返し行い、且つ、回転期間毎に洗濯槽2の回転方向を正転方向と反転方向とで切り換えるものとしてもよい。   By rotating the washing tub 2 in this manner to form a pressure distribution in the washing liquid in the washing tub 2 and floating the washing object so as to spread in the washing liquid, the washing object can be washed or rinsed. In the case of rinsing, rinsing water is supplied instead of the cleaning liquid. As for the rotation of the washing tub 2 for cleaning and rinsing the object to be cleaned, only the rotation in a certain direction may be continuously performed for a predetermined time, or the rotation in the certain direction is intermittently performed every predetermined time. It may be done. That is, the washing tub 2 may be continuously rotated in the normal rotation direction (or reverse rotation direction) for a certain period of time, or the rotation period in which the washing tub 2 is rotated in the normal rotation direction (or reverse rotation direction) and the rotation of the laundry tub 2. The stop period may be repeated until a certain period elapses. Furthermore, when the rotation of the washing tub 2 for washing and rinsing is intermittently performed, the rotation direction may be switched to the reverse direction every time rotation is started intermittently. That is, the rotation period for rotating and rotating the washing tub 2 and the rotation stopping period of the washing tub 2 are repeated until a certain period elapses, and the rotation direction of the washing tub 2 is reversed to the normal rotation direction every rotation period. It is good also as what changes with directions.

尚、このようにして洗浄及び濯ぎが実行される洗濯装置において、洗浄時に供給される洗浄液は、水系又は非水系のいずれであっても構わない。そして、水系の洗浄液としては、水、或いは水に界面活性剤を調合させたものなどが使用される。この水系の洗浄液により、水溶性の汚れを洗浄することができる。又、界面活性剤が調合される場合は、この界面活性剤が化学的に反応することで、油性の汚れをも洗浄できる。一方、非水系の洗浄液としては、石油系(炭化水素系)溶剤、或いは有機系溶剤などが使用される。この非水系の洗浄液は、主に油性の汚れを洗浄でき、又、水系の洗浄液に比べて乾燥性が良いという特性を備える。   In the washing apparatus in which washing and rinsing are performed in this way, the washing liquid supplied at the time of washing may be either aqueous or non-aqueous. As the aqueous cleaning liquid, water or a water-mixed surfactant is used. Water-soluble dirt can be washed with this water-based washing liquid. Further, when a surfactant is prepared, the oily soil can be washed by the chemical reaction of the surfactant. On the other hand, as the non-aqueous cleaning liquid, a petroleum (hydrocarbon) solvent or an organic solvent is used. This non-aqueous cleaning liquid can mainly clean oily stains and has characteristics of better drying than an aqueous cleaning liquid.

又、洗浄及び濯ぎの実行時において、洗浄液及び濯ぎ用の水はそれぞれ循環される。即ち、ケーシング1内に供給された洗浄液及び濯ぎ用の水は、ケーシング1より排出されると、濾過や化学処理などによる再生処理がなされた後、不図示のポンプなどで循環されて、ケーシング1に再び供給される。更に、洗浄及び濯ぎのそれぞれを開始するために洗浄液又は濯ぎ用の水を供給するとき、又は、洗浄及び濯ぎのそれぞれを終了するために洗浄液又は濯ぎ用の水を排出するとき、後述の各実施形態で説明するように、ケーシング1に設けられた空気流路により大気開放される。これにより、洗浄液又は濯ぎ用の水の供給又は排出のみを行うときにおいて、不図示のポンプなどにかかる負荷を低減し、その供給又は排出を速やかに実行できる。   Further, at the time of performing washing and rinsing, the washing liquid and rinsing water are circulated. That is, when the cleaning liquid and the rinsing water supplied into the casing 1 are discharged from the casing 1, they are regenerated by filtration or chemical treatment, and then circulated by a pump or the like (not shown). Will be supplied again. Further, when supplying the cleaning liquid or rinsing water to start each of the cleaning and rinsing, or when discharging the cleaning liquid or rinsing water to finish each of the cleaning and rinsing, As will be described in the form, the air is opened to the atmosphere by an air flow path provided in the casing 1. As a result, when only supplying or discharging the cleaning liquid or rinsing water, the load applied to a pump (not shown) can be reduced, and the supply or discharge can be performed quickly.

以下の各実施形態における洗濯装置は、この基本構成で説明した洗濯装置の構成を共通に備えるものであり、又、この基本構成で説明した洗浄又は濯ぎにおける動作を共通に行うものである。よって、以下では、各実施形態の洗濯装置で特徴とする部分について詳細に説明するものとし、基本構成で共通となる部分の説明については省略する。   The washing apparatus in each of the following embodiments is provided with the configuration of the washing apparatus described in the basic configuration in common, and performs the operation in the washing or rinsing described in the basic configuration in common. Therefore, below, the part which is characterized by the washing apparatus of each embodiment shall be demonstrated in detail, and description about the part which is common in a basic composition is omitted.

<第1の実施形態>
本発明の第1の実施の形態となる洗濯装置について、図面を参照して以下に説明する。図5は、本実施形態の洗濯装置の構成を示す概略図である。本実施形態の洗濯装置は、上述の基本構成で説明した構成を有するケーシング1及び洗濯槽2を備えるとともに、基本構成で説明した動作により被洗浄物の洗浄又は濯ぎを行う。
<First Embodiment>
A washing apparatus according to a first embodiment of the present invention will be described below with reference to the drawings. FIG. 5 is a schematic diagram showing the configuration of the washing apparatus of the present embodiment. The washing apparatus according to the present embodiment includes the casing 1 and the washing tub 2 having the configuration described in the basic configuration described above, and performs washing or rinsing of an object to be cleaned by the operation described in the basic configuration.

本実施形態の洗濯装置は、図5に示すように、ケーシング1の上部に、ケーシング1に洗浄液を供給する給液流路12と、ケーシング1内の空気の排気と吸気とを行う空気流路13とを備えるとともに、ケーシング1の下部に、ケーシング1から洗浄液を排出する排液流路14を備え、更に、ケーシング1内に供給された洗浄液の液位を計測するための液位計測用配管15及び圧力センサ16を備える。そして、給液流路12は、ケーシング1の上部における、洗濯槽2と重なる領域に設置されるため、給液流路12から供給される洗浄液は洗濯槽2の外壁面に衝突する。この給液流路12は、洗濯槽2の中心軸に並行な方向に沿って、複数の流路が構成されるものでとしてもよいし、1つの流路が形成されるものとしてもよい。   As shown in FIG. 5, the washing apparatus according to the present embodiment has a liquid supply channel 12 that supplies a cleaning liquid to the casing 1 and an air channel that exhausts and sucks air in the casing 1. 13, a drainage flow path 14 for discharging the cleaning liquid from the casing 1 at the lower part of the casing 1, and a liquid level measurement pipe for measuring the level of the cleaning liquid supplied into the casing 1. 15 and a pressure sensor 16. And since the liquid supply flow path 12 is installed in the area | region which overlaps with the washing tub 2 in the upper part of the casing 1, the washing | cleaning liquid supplied from the liquid supply flow path 12 collides with the outer wall surface of the washing tub 2. FIG. The liquid supply flow path 12 may be configured such that a plurality of flow paths are formed along a direction parallel to the central axis of the washing tub 2, or one flow path may be formed.

又、液位計測用配管15は、ケーシング1に対して、洗濯槽2の中心軸よりも低い位置に接続されるとともに、鉛直方向に屈曲された構成となる。この液位計測用配管15は、ケーシング1の接続側と逆側の端部に、液位計測用配管15内の圧力を測定する圧力センサ16が、鉛直方向において洗濯槽2の最上位よりも高い位置に設置される。このように圧力センサ16が設置された液位計測用配管15は、ケーシング1内に供給された洗浄液の一部が流入し、その洗浄液の鉛直方向における液位が、ケーシング1内の洗浄液50の液位と同一の高さ位置となる。そして、圧力センサ16が、液位計測用配管15内の空圧を測定することで、液位計測用配管15内の洗浄液51の液位を測定するため、その液位と同一高さとなるケーシング1内の液位が測定される。尚、本実施形態において、ケーシング1内の洗浄液の液位を測定する液位センサとして、液位計測用配管15と圧力センサ16を用いた構成としたが、静電容量や電気抵抗を測定して液位を測定する構成のもののように、別の構成であってもよい。   The liquid level measurement pipe 15 is connected to the casing 1 at a position lower than the central axis of the washing tub 2 and is bent in the vertical direction. This liquid level measurement pipe 15 has a pressure sensor 16 for measuring the pressure in the liquid level measurement pipe 15 at the end opposite to the connection side of the casing 1, in the vertical direction, higher than the uppermost position of the washing tub 2. Installed high. In the liquid level measurement pipe 15 in which the pressure sensor 16 is installed in this way, a part of the cleaning liquid supplied into the casing 1 flows, and the liquid level in the vertical direction of the cleaning liquid is that of the cleaning liquid 50 in the casing 1. The height is the same as the liquid level. Since the pressure sensor 16 measures the air pressure in the liquid level measurement pipe 15 to measure the liquid level of the cleaning liquid 51 in the liquid level measurement pipe 15, the casing has the same height as the liquid level. The liquid level in 1 is measured. In the present embodiment, the liquid level measurement pipe 15 and the pressure sensor 16 are used as the liquid level sensor for measuring the liquid level of the cleaning liquid in the casing 1, but the capacitance and electrical resistance are measured. Another configuration may be used, such as a configuration for measuring the liquid level.

更に、この洗濯装置は、給液流路12から供給される洗浄液の流量を制御する流量制御弁17と、排液流路14から排出される洗浄液の流量を制御する流量制御弁18と、作業者による操作を受け付ける操作部19と、弁開度を指定して流量制御弁17,18それぞれの開閉制御を行う制御部20と、を備える。そして、制御部20は、操作部19で受け付けられた操作内容に基づく信号を受けるとともに、操作部19での操作内容に応じて、圧力センサ16からの信号に基づいて、流量制御弁17,18それぞれの弁開度を設定する。即ち、作業者により操作部19が操作されて、洗濯される被洗浄物の内容が入力されると、制御部20は、洗濯槽2に投入された被洗浄物の内容より、ケーシング1内に供給される洗浄液50の液位を算出する。そして、制御部20は、算出した洗浄液50の液位が保持されるように、圧力センサ16からの信号による液位に基づいて、流量制御弁17,18の弁開度を最適な開度となるように制御する。   Further, the washing apparatus includes a flow rate control valve 17 that controls the flow rate of the cleaning liquid supplied from the liquid supply flow path 12, a flow rate control valve 18 that controls the flow rate of the cleaning liquid discharged from the drainage flow path 14, and an operation. An operation unit 19 that receives an operation by a user, and a control unit 20 that performs opening / closing control of each of the flow control valves 17 and 18 by designating a valve opening degree. The control unit 20 receives a signal based on the operation content received by the operation unit 19 and, based on the signal from the pressure sensor 16 according to the operation content in the operation unit 19, the flow control valves 17, 18. Set each valve opening. That is, when the operator operates the operation unit 19 to input the contents of the object to be cleaned, the control unit 20 enters the casing 1 from the content of the object to be cleaned put into the washing tub 2. The liquid level of the supplied cleaning liquid 50 is calculated. And the control part 20 makes the valve-opening degree of the flow control valves 17 and 18 into the optimal opening degree based on the liquid level by the signal from the pressure sensor 16, so that the liquid level of the calculated cleaning liquid 50 is maintained. Control to be.

このような構成の洗濯装置の動作について、以下に説明する。被洗浄物60が洗濯槽2に投入された後、作業者により操作部19が操作されて、その被洗浄物60の種類が入力されると、操作部19の入力内容を制御部20が判断して、ケーシング1内に供給する洗浄液50の液位を設定する。即ち、被洗浄物60が、比重が大きく洗浄液中で浮力と重力とによる均衡がとることができる種類のものであれば、洗濯槽2内が洗浄液50で満たされるよう、ケーシング1内の洗浄液50の液位を、洗濯槽2の最上位よりも高い位置に設定する。一方、被洗浄物60が、例えば、ダウンジャケットなどのように、比重が小さく洗浄液中で浮力が大きく働く種類のものであれば、洗濯槽2内に空気の層が形成されるよう、ケーシング1内の洗浄液50の液位を、洗濯槽2の中心軸位置から最上位の間となる位置に設定する。この液位については、その比重が小さくなるものほど、洗濯槽2の中心軸位置に近い位置に設定されるようにしてもよい。   The operation of the washing apparatus having such a configuration will be described below. After the object to be cleaned 60 is put into the washing tub 2, when the operator operates the operation unit 19 and inputs the type of the object to be cleaned 60, the control unit 20 determines the input content of the operation unit 19. Then, the liquid level of the cleaning liquid 50 supplied into the casing 1 is set. That is, if the object to be cleaned 60 is of a type that has a large specific gravity and can be balanced by buoyancy and gravity in the cleaning liquid, the cleaning liquid 50 in the casing 1 is filled so that the washing tub 2 is filled with the cleaning liquid 50. Is set at a position higher than the uppermost position of the washing tub 2. On the other hand, if the object to be cleaned 60 is of a type having a small specific gravity and large buoyancy in the cleaning liquid, such as a down jacket, the casing 1 is formed so that an air layer is formed in the washing tub 2. The liquid level of the cleaning liquid 50 is set to a position between the central axis position of the washing tub 2 and the uppermost position. About this liquid level, you may make it set to the position near the center axis position of the washing tub 2, so that the specific gravity becomes small.

このようにして、洗浄液50の液位が設定されると、制御部20は、流量制御弁18を閉じるとともに流量制御弁17を開いて、洗浄液のケーシング1内への供給を開始する。流量制御弁17からケーシング1内に洗浄液50が供給されるとき、洗浄液50の一部が液位計測用配管15に流れ込み、液位計測用配管15内の洗浄液51の液位に基づく圧力を圧力センサ16が検出する。この圧力センサ16が、検出した液位計測用配管15内の圧力を示す信号を制御部20に送出すると、制御部20は、圧力センサ16からの信号により、液位計測用配管15内の洗浄液51の液位を測定することで、ケーシング1内の洗浄液50の液位を測定する。制御部20は、ケーシング1内の洗浄液50の液位が、設定された液位に到達したことを確認すると、流量制御弁18を開いて、ケーシング1内の洗浄液50が排液流路14から排出できるようにして、ケーシング1に供給される洗浄液50を循環させる。   When the liquid level of the cleaning liquid 50 is set in this way, the control unit 20 closes the flow control valve 18 and opens the flow control valve 17 to start supplying the cleaning liquid into the casing 1. When the cleaning liquid 50 is supplied from the flow control valve 17 into the casing 1, a part of the cleaning liquid 50 flows into the liquid level measurement pipe 15, and the pressure based on the liquid level of the cleaning liquid 51 in the liquid level measurement pipe 15 is increased. The sensor 16 detects it. When the pressure sensor 16 sends a signal indicating the detected pressure in the liquid level measurement pipe 15 to the control unit 20, the control unit 20 uses the signal from the pressure sensor 16 to clean the cleaning liquid in the liquid level measurement pipe 15. By measuring the liquid level 51, the liquid level of the cleaning liquid 50 in the casing 1 is measured. When the control unit 20 confirms that the liquid level of the cleaning liquid 50 in the casing 1 has reached the set liquid level, the control unit 20 opens the flow control valve 18 so that the cleaning liquid 50 in the casing 1 is discharged from the drainage flow path 14. The cleaning liquid 50 supplied to the casing 1 is circulated so that it can be discharged.

このようにして、被洗浄物60の洗浄を実行するための洗浄液50を、給液流路12からケーシング1内に供給した後に排液流路14より排出させて、循環させるようになると、制御部20は、駆動機構5(図1参照)を駆動させて、洗濯槽2を回転させる。即ち、ケーシング1内に供給される洗浄液50を循環させると同時に、洗濯槽2を回転させることによって、被洗浄物60の洗浄を行う。このとき、制御部20は、圧力センサ16からの信号を受けて、洗浄液50の液位を確認し、この洗浄液50の液位を設定された液位に保持するように、流量制御弁17,18それぞれの弁開度を調整する。   In this way, when the cleaning liquid 50 for executing the cleaning of the cleaning object 60 is supplied from the liquid supply channel 12 into the casing 1 and then discharged from the drain channel 14 and circulated, the control is performed. The unit 20 drives the drive mechanism 5 (see FIG. 1) to rotate the washing tub 2. That is, the cleaning object 50 is cleaned by rotating the washing tub 2 at the same time as circulating the cleaning liquid 50 supplied into the casing 1. At this time, the control unit 20 receives the signal from the pressure sensor 16, confirms the liquid level of the cleaning liquid 50, and maintains the liquid level of the cleaning liquid 50 at the set liquid level. The valve opening degree of each 18 is adjusted.

このようにして洗浄が行われているとき、投入された被洗浄物60が、浮力による影響を大きく受ける被洗浄物である場合、上述したように、洗濯槽2内には、空気の層が形成されるように、洗浄液50の液位が、洗濯槽2の最上位よりも低い位置に設定される。このとき、被洗浄物60は、洗濯槽2の回転により発生する洗浄液50中の流速分布の影響で、洗浄液50中を漂うようが、洗浄液50によって働く浮力により、洗濯槽2の上部に浮いてしまうことがある。しかしながら、洗浄液50の液位よりも上側には被洗浄物60が浮上することはないため、被洗浄物60が回転している洗濯槽2の上部の内壁面に衝突することを防止できる。   When the object to be cleaned 60 is an object to be cleaned that is greatly affected by buoyancy when cleaning is performed in this manner, an air layer is present in the washing tub 2 as described above. As formed, the liquid level of the cleaning liquid 50 is set to a position lower than the uppermost position of the washing tub 2. At this time, the object to be cleaned 60 floats in the upper part of the washing tub 2 due to the buoyancy exerted by the cleaning liquid 50 to float in the cleaning liquid 50 due to the influence of the flow velocity distribution in the cleaning liquid 50 generated by the rotation of the washing tub 2. May end up. However, since the object to be cleaned 60 does not float above the liquid level of the cleaning liquid 50, the object to be cleaned 60 can be prevented from colliding with the upper inner wall surface of the rotating washing tub 2.

このような洗浄が実行されているとき、排液流路14より排出された洗浄液は、濾過や化学処理などによる再生処理がなされた後、不図示のポンプなどで循環されて、給液流路12から再びケーシング1内に供給される。給液流路12から供給された洗浄液は、回転している洗濯槽2の外壁面に衝突するため、洗濯槽2の外壁面に沿って流れた後、スリット23(図2参照)より洗濯槽2内部に流れ込む。尚、スリット23が給液流路12の真下に位置する場合は、スリット23から直接洗濯槽2内部に洗浄液が流れ込む。そして、被洗浄物60の洗浄が終了すると、制御部20は、流量制御弁17を閉じて、給液流路12からケーシング1への洗浄液の供給を禁止し、ケーシング1内の洗浄液50を排液流路14より排出する。   When such cleaning is being performed, the cleaning liquid discharged from the drainage flow path 14 is circulated by a pump or the like (not shown) after being subjected to regeneration processing such as filtration or chemical processing, and is supplied to the liquid supply flow path. 12 is supplied again into the casing 1. Since the cleaning liquid supplied from the liquid supply flow path 12 collides with the outer wall surface of the rotating washing tub 2, the cleaning liquid flows along the outer wall surface of the washing tub 2 and then flows through the slit 23 (see FIG. 2). 2 flows into the interior. When the slit 23 is located directly below the liquid supply flow path 12, the cleaning liquid flows directly into the washing tub 2 from the slit 23. When the cleaning of the object to be cleaned 60 is completed, the control unit 20 closes the flow rate control valve 17 to prohibit the supply of the cleaning liquid from the liquid supply flow path 12 to the casing 1 and discharge the cleaning liquid 50 in the casing 1. It is discharged from the liquid flow path 14.

このように、本実施形態では、被洗浄物60の種類に応じて、ケーシング1内に供給される洗浄液の液位を自動的に設定して、洗濯槽2を回転して洗浄を行う際において、被洗浄物60が洗濯槽2の内壁面に接触することを防止できるものとした。これにより、比重が小さく浮力の影響を受けやすい被洗浄物60を洗浄する場合であっても、その被洗浄物60の洗濯槽2への接触を防ぎ、生地への損傷を未然に防ぐことができる。尚、上述においては、洗浄液による洗浄動作について説明したが、水を用いた濯ぎ動作についても、同様の動作を行うことで、被洗浄物60への洗濯槽2への接触を防止できる。   As described above, in the present embodiment, the level of the cleaning liquid supplied into the casing 1 is automatically set according to the type of the object to be cleaned 60, and the washing tub 2 is rotated to perform cleaning. The object 60 to be cleaned can be prevented from coming into contact with the inner wall surface of the washing tub 2. Thus, even when the object to be cleaned 60 having a small specific gravity and easily affected by buoyancy is washed, it is possible to prevent the object to be cleaned 60 from contacting the washing tub 2 and to prevent damage to the fabric. it can. In the above description, the cleaning operation using the cleaning liquid has been described. However, the same operation can be performed for the rinsing operation using water, thereby preventing the object to be cleaned 60 from coming into contact with the washing tub 2.

<第2の実施形態>
本発明の第2の実施の形態となる洗濯装置について、図面を参照して以下に説明する。図6は、本実施形態の洗濯装置の構成を示す概略図である。尚、図6に示す構成において、図5に示す構成と同一の目的で使用する部分については、同一の符号を付して、その詳細な説明は省略する。
<Second Embodiment>
A washing apparatus according to a second embodiment of the present invention will be described below with reference to the drawings. FIG. 6 is a schematic diagram showing the configuration of the washing apparatus of the present embodiment. In the configuration shown in FIG. 6, parts used for the same purpose as the configuration shown in FIG. 5 are given the same reference numerals, and detailed description thereof is omitted.

本実施形態の洗濯装置は、図6に示すように、第1の実施形態における洗濯装置(図5参照)と異なり、給液流路12は、ケーシング1の上部における、洗濯槽2と重ならない領域に設置される。即ち、給液流路12は、供給する洗浄液が洗濯槽2に直接衝突することのない位置に設置される。この洗濯装置のその他の構成については、第1の実施形態における洗濯装置と同一の構成となるため、その詳細な説明については省略し、以下では、給液流路12による構成に基づく動作などを中心に説明する。   As shown in FIG. 6, the washing apparatus of the present embodiment is different from the washing apparatus (see FIG. 5) in the first embodiment, and the liquid supply channel 12 does not overlap the washing tub 2 in the upper part of the casing 1. Installed in the area. That is, the liquid supply channel 12 is installed at a position where the supplied cleaning liquid does not directly collide with the washing tub 2. About the other structure of this washing apparatus, since it becomes the same structure as the washing apparatus in 1st Embodiment, it abbreviate | omits about the detailed description, and below, the operation | movement based on the structure by the liquid supply flow path 12, etc. The explanation is centered.

給液流路12から供給される洗浄液は、ケーシング1の内壁面と洗濯槽2の外壁面との間となる領域に供給されるため、第1の実施形態のように、洗浄液が直接洗濯槽2の外壁面に流れて、洗濯槽2内部に流れ込むことがない。即ち、ケーシング1内における、洗濯槽2の外側に供給された洗浄液は、その洗浄液の液位より低い位置となる、洗濯槽2のスリット23(図2参照9から洗濯槽2内部に流れ込む。これにより、ケーシング1内において、洗濯槽2内外の洗浄液50の液位が等しくなる。よって、本実施形態においては、第1の実施形態と異なり、洗濯槽2の上部から洗浄液が洗濯槽2内に流れ込む構成ではないため、洗濯槽2に流れ込んだ洗浄液により、洗浄液50の液面に振動を与えることがなく、洗浄液50の液面を穏やかな状態とできる。   Since the cleaning liquid supplied from the liquid supply channel 12 is supplied to a region between the inner wall surface of the casing 1 and the outer wall surface of the washing tub 2, the cleaning liquid is directly applied to the washing tub as in the first embodiment. 2 flows into the outer wall surface of the washing tub 2 and does not flow into the washing tub 2. That is, the cleaning liquid supplied to the outside of the washing tub 2 in the casing 1 flows into the inside of the washing tub 2 from the slit 23 (see 9 in FIG. 2) at a position lower than the liquid level of the cleaning liquid. Thus, the level of the cleaning liquid 50 inside and outside the washing tub 2 becomes equal in the casing 1. Therefore, in the present embodiment, unlike the first embodiment, the cleaning liquid enters the washing tub 2 from the top of the washing tub 2. Since it is not the structure which flows in, the liquid level of the washing | cleaning liquid 50 can be made into a calm state, without giving a vibration to the liquid level of the washing | cleaning liquid 50 with the washing | cleaning liquid which flowed into the washing tub 2.

本実施形態の洗濯装置についても、被洗浄物60の洗浄を行う場合、第1の実施形態と同様、操作部19が操作されて、洗濯槽2に投入された被洗浄物60の種類が入力される。これにより、制御部20は、その被洗浄物60の洗浄に最適な洗浄液50の液位を設定し、流量制御弁18を閉じるとともに流量制御弁17を開いて、ケーシング1内に洗浄液を供給する。そして、被洗浄物20は、圧力センサ16からの信号により、ケーシング1内の洗浄液50の液位が設定された液位となったことを確認すると、流量制御弁18を開くとともに洗濯槽2を回転させて、被洗浄物60の洗浄を開始する。   Also in the washing apparatus of the present embodiment, when the object to be cleaned 60 is cleaned, the type of the object to be cleaned 60 input to the washing tub 2 is input by operating the operation unit 19 as in the first embodiment. Is done. As a result, the control unit 20 sets the level of the cleaning liquid 50 optimum for cleaning the article 60 to be cleaned, closes the flow control valve 18 and opens the flow control valve 17, and supplies the cleaning liquid into the casing 1. . When the object to be cleaned 20 confirms from the signal from the pressure sensor 16 that the level of the cleaning liquid 50 in the casing 1 has reached the set level, the flow control valve 18 is opened and the washing tub 2 is opened. Rotate to start cleaning the object to be cleaned 60.

このとき、排液流路14から排出されて循環する洗浄液が、給液流路12より再びケーシング1内に供給されるが、上述したように、第1の実施形態と異なり、洗濯槽2の外側に供給される。そのため、第1の実施形態のように、洗濯槽2内で、供給される洗浄液が洗浄液50の液面に衝突することがないため、洗濯槽2内の洗浄液50の液面の振動を抑制できる。これにより、被洗浄物60が浮力の影響を受けやすい被洗浄物であるとき、洗浄液50の液面側に漂ってくる場合において、洗浄液50の液面の揺れが小さいため、洗濯槽2の内壁面に被洗浄物60が衝突することを更に防止することができる。そして、被洗浄物60の洗浄が終了すると、制御部20は、流量制御弁17を閉じて、給液流路12からケーシング1への洗浄液の供給を禁止し、ケーシング1内の洗浄液50を排液流路14より排出する。   At this time, the cleaning liquid discharged and circulated from the drainage flow path 14 is supplied again into the casing 1 from the liquid supply flow path 12, but as described above, unlike the first embodiment, Supplied outside. Therefore, unlike the first embodiment, since the supplied cleaning liquid does not collide with the liquid level of the cleaning liquid 50 in the washing tub 2, vibration of the liquid level of the cleaning liquid 50 in the washing tub 2 can be suppressed. . As a result, when the object to be cleaned 60 is an object to be cleaned that is susceptible to buoyancy, the drift of the liquid surface of the cleaning liquid 50 is small when drifting to the liquid surface side of the cleaning liquid 50, so It is possible to further prevent the cleaning object 60 from colliding with the wall surface. When the cleaning of the object to be cleaned 60 is completed, the control unit 20 closes the flow rate control valve 17 to prohibit the supply of the cleaning liquid from the liquid supply flow path 12 to the casing 1 and discharge the cleaning liquid 50 in the casing 1. It is discharged from the liquid flow path 14.

本発明は、循環して洗浄液が供給されるケーシング内で洗濯槽を回転させて被洗浄物の洗浄を行う洗濯装置に適用できる。又、この洗濯装置において使用する洗浄液として、水系の洗浄液であっても構わないし、非水系の洗浄液であっても構わない。   INDUSTRIAL APPLICABILITY The present invention can be applied to a washing apparatus that cleans an object to be cleaned by rotating a washing tub in a casing that is circulated and supplied with cleaning liquid. Further, the cleaning liquid used in this washing apparatus may be an aqueous cleaning liquid or a non-aqueous cleaning liquid.

1 ケーシング
2 洗濯槽
3 扉部
4 回転軸
5 駆動機構
11 投入口
12 給液流路
13 空気流路
14 排液流路
15 液位計測用配管
16 圧力センサ
17,18 流量制御弁
19 操作部
20 制御部
21 開口部
22 凹凸曲面
22a 凹部
22b 凸部
23 スリット
24 底面
50,51 洗浄液
60 被洗浄物
221 底部
222 頂部
223 接続部
DESCRIPTION OF SYMBOLS 1 Casing 2 Washing tub 3 Door part 4 Rotating shaft 5 Drive mechanism 11 Input port 12 Liquid supply flow path 13 Air flow path 14 Drainage flow path 15 Liquid level measurement piping 16 Pressure sensor 17, 18 Flow control valve 19 Operation part 20 Control part 21 Opening part 22 Concave and convex curved surface 22a Concave part 22b Convex part 23 Slit 24 Bottom face 50, 51 Cleaning liquid 60 Object to be cleaned 221 Bottom part 222 Top part 223 Connection part

Claims (4)

鉛直方向より水平方向に傾いた方向或いは水平方向となる回転軸により回転するとともに被洗浄物が内部に収容される洗濯槽であって、該洗濯槽の内壁面において径方向に凹凸させた凹凸曲面を設けた洗濯槽と、該洗濯槽を覆うとともに洗浄液が供給されるケーシングと、該ケーシングに前記洗浄液を供給する給液流路と、該ケーシングから前記洗浄液を排出する排液流路とを備え、被洗浄物を洗浄液中で漂うにして広がりながら浮遊させて洗浄する洗濯装置において、
前記ケーシング内に供給された洗浄液の液位を測定する液位センサと、
洗浄液の前記ケーシング内への供給及び循環と前記洗濯槽の回転とを制御して、前記被洗浄物の洗浄動作を制御する制御部と、
を備え、
前記被洗浄物を洗浄する際、
前記制御部は、前記ケーシング内の洗浄液の液位を、前記洗濯槽の中心軸以上の高さ位置で、前記洗濯槽に投入される被洗浄物の種類に応じた前記ケーシング内の洗浄液の液位を設定し、
前記液位センサの検出した値に基づいて、前記給液流路によって前記ケーシングに供給される洗浄液の流量と、前記排液流路によって前記ケーシングから排出する洗浄液の流量とを制御して、前記ケーシング内の洗浄液の液位を設定された液位とした状態で、前記洗濯槽を回転させることを特徴とする洗濯装置。
An uneven curved surface that is rotated by a rotating axis that is inclined in the horizontal direction from the vertical direction or in a horizontal direction, and in which an object to be cleaned is accommodated , and has an uneven surface in the radial direction on the inner wall surface of the laundry tank A washing tub that covers the washing tub and is supplied with the cleaning liquid, a liquid supply channel that supplies the cleaning liquid to the casing, and a drainage channel that discharges the cleaning liquid from the casing. In a washing apparatus that floats and cleans objects to be washed while floating in the washing liquid ,
A liquid level sensor for measuring the liquid level of the cleaning liquid supplied into the casing;
A control unit that controls the supply and circulation of the cleaning liquid into the casing and the rotation of the washing tub to control the cleaning operation of the object to be cleaned;
With
When cleaning the object to be cleaned,
The control unit sets the level of the cleaning liquid in the casing at a height position equal to or higher than the central axis of the washing tub, and the level of the cleaning liquid in the casing according to the type of the object to be cleaned put into the washing tub. Set the position,
Based on the value detected by the liquid level sensor, the flow rate of the cleaning liquid supplied to the casing by the liquid supply flow path and the flow rate of the cleaning liquid discharged from the casing by the drainage flow path are controlled, A washing apparatus characterized in that the washing tub is rotated in a state where the level of the cleaning liquid in the casing is set to a set liquid level.
請求項において、
前記洗濯槽が、その内壁面から外壁面に向かって貫通したスリットを備えることを特徴とする洗濯装置。
In claim 1 ,
The washing apparatus, wherein the washing tub includes a slit penetrating from an inner wall surface toward an outer wall surface.
請求項1乃至請求項のいずれか一項において、
前記給液流路が、前記ケーシングにおける前記洗濯槽の直上に設置されることを特徴とする洗濯装置。
In any one of Claims 1 to 2 ,
The washing apparatus according to claim 1, wherein the liquid supply flow path is installed immediately above the washing tub in the casing.
請求項1乃至請求項のいずれか一項において、
前記給液流路が、前記ケーシングにおける前記洗濯槽の直上から外れた位置に設置されることを特徴とする洗濯装置。
In any one of Claims 1 to 2 ,
The washing apparatus according to claim 1, wherein the liquid supply flow path is installed at a position off the top of the washing tub in the casing.
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