JP2021194451A - Dishwasher - Google Patents

Dishwasher Download PDF

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JP2021194451A
JP2021194451A JP2020105223A JP2020105223A JP2021194451A JP 2021194451 A JP2021194451 A JP 2021194451A JP 2020105223 A JP2020105223 A JP 2020105223A JP 2020105223 A JP2020105223 A JP 2020105223A JP 2021194451 A JP2021194451 A JP 2021194451A
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nozzle
lower nozzle
washing
longitudinal direction
axis direction
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JP7499080B2 (en
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龍成 大橋
Tatsunari Ohashi
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Rinnai Corp
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Rinnai Corp
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
    • A47L15/22—Rotary spraying devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4217—Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4278—Nozzles
    • A47L15/428—Rotary nozzles
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/50—Racks ; Baskets
    • A47L15/502—Cutlery baskets

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Washing And Drying Of Tableware (AREA)

Abstract

To provide a dishwasher comprising a washing tank 2 storing a dish basket 3, a washing nozzle 4 provided in the washing tank 2, and a washing pump 5 for supplying washing water to the washing nozzle 4, the washing nozzle 4 including a lower nozzle 41 that extends in a horizontal direction under the washing tank 2 and is turnable around a vertical axis at a longitudinal direction center part and an upper nozzle 42 that is erected at the longitudinal direction center part of the lower nozzle 41 and extends upward, the dishwasher having improved ability to wash dishes placed on a specific position in the washing tank 2.SOLUTION: A dishwasher comprises distribution means 6 capable of varying a ratio of distribution to a lower nozzle 41 and that to an upper nozzle 42 of washing water supplied from a washing pump 5, depending on a turning position of the lower nozzle 41.SELECTED DRAWING: Figure 1

Description

本発明は、食器類を支持する食器かごが収納された洗浄槽と、洗浄槽内に設けられた洗浄ノズルと、洗浄槽内の洗浄水を洗浄ノズルに供給する洗浄ポンプとを備える食器洗浄機に関する。 The present invention is a dishwashing machine including a washing tank containing a tableware basket that supports tableware, a washing nozzle provided in the washing tank, and a washing pump that supplies washing water in the washing tank to the washing nozzle. Regarding.

従来、この種の食器洗浄機において、洗浄ノズルとして、洗浄槽の下部で水平方向にのび、長手方向中央部で鉛直軸線回りに旋回自在な下ノズルと、下ノズルの長手方向中央部に立設された上方にのびる上ノズルとを有するものを用いるものが知られている（例えば、特許文献１参照）。 Conventionally, in this type of dishwasher, as a washing nozzle, a lower nozzle that extends horizontally at the bottom of the washing tank and can swivel around the vertical axis at the center of the longitudinal direction and a lower nozzle that can be swiveled around the vertical axis are installed at the center of the lower nozzle in the longitudinal direction. It is known to use a nozzle having an upper nozzle extending upward (see, for example, Patent Document 1).

ところで、洗浄槽の形状が平面視でほぼ長方形である場合、この長方形の長辺に平行な方向をＸ軸方向、短辺に平行な方向をＹ軸方向として、下ノズルの長手方向がＸ軸方向に沿う旋回位置における下ノズルの長手方向端部とこれに対向する洗浄槽の壁面（洗浄槽のＸ軸方向各側の壁面）との間の距離が、下ノズルの長手方向がＹ軸方向に沿う旋回位置における下ノズルの長手方向端部とこれに対向する洗浄槽の壁面（洗浄槽のＹ軸方向各側の壁面）との間の距離よりも長くなる。従って、洗浄槽のＸ軸方向各側の壁面近傍に置かれた食器類の洗浄能力が低下してしまう。 By the way, when the shape of the cleaning tank is almost rectangular in a plan view, the direction parallel to the long side of this rectangle is the X-axis direction, the direction parallel to the short side is the Y-axis direction, and the longitudinal direction of the lower nozzle is the X-axis. The distance between the longitudinal end of the lower nozzle at the swivel position along the direction and the wall surface of the cleaning tank facing it (the wall surface on each side in the X-axis direction of the cleaning tank) is the longitudinal direction of the lower nozzle in the Y-axis direction. It is longer than the distance between the longitudinal end of the lower nozzle and the wall surface of the cleaning tank facing it (the wall surface on each side in the Y-axis direction of the cleaning tank) at the turning position along. Therefore, the cleaning ability of tableware placed near the wall surface on each side in the X-axis direction of the cleaning tank is reduced.

特開２０１９−６３３３４号公報Japanese Unexamined Patent Publication No. 2019-6334

本発明は、以上の点に鑑み、洗浄槽内の特定箇所に置かれた食器類の洗浄能力を向上できるようにした食器洗浄機を提供することをその課題としている。 In view of the above points, it is an object of the present invention to provide a dishwasher capable of improving the washing ability of tableware placed at a specific place in the washing tank.

上記課題を解決するために、本発明は、食器類を支持する食器かごが収納された洗浄槽と、洗浄槽内に設けられた洗浄ノズルと、洗浄槽内の洗浄水を洗浄ノズルに供給する洗浄ポンプとを備える食器洗浄機であって、洗浄ノズルは、洗浄槽の下部で水平方向にのび、長手方向中央部で鉛直軸線回りに旋回自在な下ノズルと、下ノズルの長手方向中央部に立設された上方にのびる上ノズルとを有するものにおいて、洗浄ポンプから供給される洗浄水の下ノズルと上ノズルとへの分配比率を下ノズルの旋回位置に応じて可変する分配手段を備えることを特徴とする。 In order to solve the above problems, the present invention supplies a washing tank containing a tableware basket supporting tableware, a washing nozzle provided in the washing tank, and washing water in the washing tank to the washing nozzle. A dishwasher equipped with a washing pump, the washing nozzle extends horizontally at the bottom of the washing tank and can swivel around the vertical axis at the center of the longitudinal direction, and at the center of the lower nozzle in the longitudinal direction. In the case of having an erected upper nozzle extending upward, a distribution means for varying the distribution ratio of the washing water supplied from the washing pump to the lower nozzle and the upper nozzle according to the turning position of the lower nozzle is provided. It is characterized by.

本発明によれば、洗浄水の下ノズルと上ノズルとへの分配比率を下ノズルの旋回位置に応じて可変することにより、下ノズルの特定の旋回位置で他の旋回位置よりも下ノズルからの洗浄水の噴射量を多くすることができる。従って、下ノズルの特定の旋回位置に対応する洗浄槽内の特定箇所に置かれた食器類の洗浄能力を向上できる。 According to the present invention, the distribution ratio of the washing water to the lower nozzle and the upper nozzle is changed according to the turning position of the lower nozzle, so that the lower nozzle can be used at a specific turning position of the lower nozzle from the lower nozzle than the other turning positions. It is possible to increase the injection amount of the washing water. Therefore, it is possible to improve the cleaning ability of tableware placed at a specific location in the cleaning tank corresponding to the specific swivel position of the lower nozzle.

例えば、洗浄槽の形状が平面視でほぼ長方形である場合、この長方形の長辺に平行な方向をＸ軸方向、短辺に平行な方向をＹ軸方向として、分配手段を、下ノズルの長手方向がＸ軸方向に沿う旋回位置では、下ノズルの長手方向がＹ軸方向に沿う旋回位置よりも、下ノズルからの洗浄水の噴射量が多くなるように構成すれば、洗浄能力が不足し勝ちな洗浄槽のＸ軸方向各側の壁面近傍に置かれた食器類の洗浄能力を向上させることができる。 For example, when the shape of the cleaning tank is almost rectangular in a plan view, the direction parallel to the long side of this rectangle is the X-axis direction, the direction parallel to the short side is the Y-axis direction, and the distribution means is the length of the lower nozzle. At the swivel position where the direction is along the X-axis direction, the cleaning capacity is insufficient if the longitudinal direction of the lower nozzle is configured to be larger than the swivel position along the Y-axis direction. It is possible to improve the cleaning ability of tableware placed near the wall surface on each side in the X-axis direction of the winning cleaning tank.

尚、分配手段の構造を簡素化するには、分配手段を以下の如く構成すればよい。即ち、洗浄槽の底部に、下ノズルの底板部の長手方向中央部に設けられた上方に凹入するソケット部に下方から挿入される、洗浄ポンプに接続される中空のジョイント部材を設け、ジョイント部材の上端に、ソケット部の上端に開設した上ノズル用連通口を介して洗浄水を上ノズルに分配する上ノズル用分配口を開設すると共に、ジョイント部材の周面に、下ノズルの長手方向を向くソケット部の周面部分に開設した下ノズル用連通口を介して洗浄水を下ノズルに分配する下ノズル用分配口を開設して、ジョイント部材で分配手段を構成する。そして、下ノズルの長手方向がＸ軸方向に沿う旋回位置では、下ノズルの長手方向がＹ軸方向に沿う旋回位置よりも、下ノズルからの洗浄水の噴射量が多くなるように、ジョイント部材の周方向位置によって下ノズル用分配口の開口面積を異ならせればよい。 In order to simplify the structure of the distribution means, the distribution means may be configured as follows. That is, a hollow joint member connected to the cleaning pump, which is inserted from below into a socket portion recessed upward provided in the central portion of the bottom plate portion of the bottom plate of the lower nozzle in the longitudinal direction, is provided at the bottom of the cleaning tank to form a joint. At the upper end of the member, a distribution port for the upper nozzle that distributes the washing water to the upper nozzle via the communication port for the upper nozzle opened at the upper end of the socket portion is opened, and a distribution port for the upper nozzle is opened on the peripheral surface of the joint member in the longitudinal direction of the lower nozzle. A distribution port for the lower nozzle that distributes the washing water to the lower nozzle is opened through the communication port for the lower nozzle opened on the peripheral surface portion of the socket portion facing the surface, and the distribution means is configured by the joint member. Then, at the swivel position where the longitudinal direction of the lower nozzle is along the X-axis direction, the joint member so that the injection amount of the washing water from the lower nozzle is larger than the swivel position where the longitudinal direction of the lower nozzle is along the Y-axis direction. The opening area of the distribution port for the lower nozzle may be different depending on the position in the circumferential direction.

本発明の実施形態の食器洗浄機の切断側面図。The cutting side view of the dishwasher of embodiment of this invention. 図１のＩＩ−ＩＩ線で切断した切断平面図。The cut plan view cut along the line II-II of FIG. 実施形態の食器洗浄機に設けられた下ノズルとジョイント部材の分離状態の斜視図。The perspective view of the separated state of the lower nozzle and the joint member provided in the dishwasher of an embodiment.

図１に示す本発明の実施形態の食器洗浄機は、システムキッチンに組み込んで設置されるビルトイン式のものであり、前面が開放されたハウジング１内に前方に引出し自在に収納される洗浄槽２を備えている。洗浄槽２内には、食器類を支持する食器かご３が収納されると共に、食器かご３に向けて洗浄水を噴射する洗浄ノズル４が設けられている。尚、洗浄槽２の前面には、ハウジング１の前面を閉塞する前蓋２１が取付けられている。また、ハウジング１内の上部には、洗浄槽２の開放された上面を閉塞するシール蓋１１が設けられている。 The dishwasher of the embodiment of the present invention shown in FIG. 1 is a built-in type that is installed in a system kitchen, and is a washing tank 2 that is freely pulled out and stored in a housing 1 having an open front surface. It is equipped with. In the washing tank 2, a tableware basket 3 that supports the tableware is stored, and a washing nozzle 4 that sprays washing water toward the tableware basket 3 is provided. A front lid 21 that closes the front surface of the housing 1 is attached to the front surface of the cleaning tank 2. Further, a seal lid 11 for closing the open upper surface of the cleaning tank 2 is provided on the upper portion of the housing 1.

洗浄槽２の底部には、残菜フィルタ２２を介して洗浄槽２内に連通する洗浄水の溜り部２３が設けられている。洗浄槽２の底部下側には、溜り部２３に連通する洗浄ポンプ５が設置されている。そして、洗浄ポンプ５を正転させたとき、洗浄槽２内の洗浄水が溜り部２３と洗浄ポンプ５とを介して洗浄ノズル４に供給され、洗浄ポンプ５を逆転させたとき、洗浄水が洗浄槽２から排水されるようにしている。 At the bottom of the washing tank 2, a pool portion 23 for washing water that communicates with the inside of the washing tank 2 via the residual dish filter 22 is provided. A cleaning pump 5 communicating with the reservoir 23 is installed on the lower side of the bottom of the cleaning tank 2. Then, when the cleaning pump 5 is rotated in the normal direction, the cleaning water in the cleaning tank 2 is supplied to the cleaning nozzle 4 via the reservoir 23 and the cleaning pump 5, and when the cleaning pump 5 is reversed, the cleaning water is discharged. It is designed to be drained from the washing tank 2.

洗浄ノズル４は、洗浄槽２の下部で水平方向にのび、長手方向中央部で鉛直軸線回りに旋回自在な下ノズル４１と、下ノズル４１の長手方向中央部に立設された上方にのびる上ノズル４２とを有している。下ノズル４１は、これに形成した複数のノズル孔４１１から洗浄水を噴射する。また、下ノズル４１の長手方向の各端部近傍に形成した、回転接線方向を向くノズル孔４１２からの洗浄水の噴射反力により、下ノズル４１が図２で時計回り方向に旋回する。上ノズル４２は、その上部に形成した複数のノズル孔４２１から洗浄水を噴射する。 The cleaning nozzle 4 extends horizontally at the lower part of the cleaning tank 2 and is rotatable around the vertical axis at the central portion in the longitudinal direction. It has a nozzle 42. The lower nozzle 41 injects washing water from a plurality of nozzle holes 411 formed therein. Further, the lower nozzle 41 turns clockwise in FIG. 2 due to the injection reaction force of the washing water formed in the vicinity of each end of the lower nozzle 41 in the longitudinal direction and facing the rotation tangential direction. The upper nozzle 42 injects washing water from a plurality of nozzle holes 421 formed in the upper portion thereof.

また、食器かご３として、洗浄槽２の下部に、下ノズル４１の上方に位置させて配置された、大皿、小皿、中鉢、椀等の比較的大型の食器Ｗ１を支持する下かご３１と、洗浄槽２の上部であって、上ノズル４２の後方に隣接した部分に配置された、コップや湯飲みに代表される有底の筒状食器Ｗ２を支持する上かご３２とが設けられている。下かご３１の中央部には、これに載置する食器Ｗ１が上ノズル４２に干渉することを防止できるように、上ノズル４２を囲うノズルガード枠３１１が立設されている。 Further, as the tableware basket 3, the lower basket 31 that supports the relatively large tableware W1 such as a large plate, a small plate, a medium bowl, and a bowl, which is arranged below the lower nozzle 41 at the lower part of the washing tank 2. An upper basket 32 that supports the bottomed tubular tableware W2 represented by a cup or a teacup is provided in the upper part of the washing tank 2 and adjacent to the rear of the upper nozzle 42. At the center of the lower basket 31, a nozzle guard frame 311 surrounding the upper nozzle 42 is erected so that the tableware W1 placed on the lower basket 31 can be prevented from interfering with the upper nozzle 42.

図２を参照して、洗浄槽２の形状は、平面視でほぼ長方形である。ここで、この長方形の長辺に平行な方向をＸ軸方向（本実施形態では前後方向）、短辺に平行な方向をＹ軸方向（本実施形態では横方向）として、下ノズル４１の長手方向がＸ軸方向に沿う旋回位置（以下、Ｘ軸方向旋回位置と記す）における下ノズル４１の長手方向端部とこれに対向する洗浄槽２のＸ軸方向各側の壁面との間の距離が、下ノズル４１の長手方向がＹ軸方向に沿う旋回位置（以下、Ｙ軸方向旋回位置と記す）における下ノズル４１の長手方向端部とこれに対向する洗浄槽２のＹ軸方向各側の壁面との間の距離よりも長くなる。従って、洗浄槽２のＸ軸方向各側の壁面近傍に置かれた食器類の洗浄能力が不足し勝ちになる。 With reference to FIG. 2, the shape of the cleaning tank 2 is substantially rectangular in a plan view. Here, the direction parallel to the long side of this rectangle is the X-axis direction (front-back direction in the present embodiment), and the direction parallel to the short side is the Y-axis direction (horizontal direction in the present embodiment). The distance between the longitudinal end of the lower nozzle 41 at the swivel position along the X-axis direction (hereinafter referred to as the swivel position in the X-axis direction) and the wall surface on each side of the cleaning tank 2 facing the longitudinal direction. However, at the turning position where the longitudinal direction of the lower nozzle 41 is along the Y-axis direction (hereinafter referred to as the Y-axis direction turning position), the longitudinal end of the lower nozzle 41 and each side of the cleaning tank 2 facing the end in the Y-axis direction. It will be longer than the distance between the wall and the wall. Therefore, the cleaning ability of the tableware placed in the vicinity of the wall surface on each side in the X-axis direction of the cleaning tank 2 is insufficient, and the cleaning ability tends to be insufficient.

そこで、本実施形態では、洗浄ポンプ５から供給される洗浄水の下ノズル４１と上ノズル４２とへの分配比率を下ノズル４１の旋回位置に応じて可変する分配手段６を設けている。そして、分配手段６を、下ノズル４１のＸ軸方向旋回位置では、下ノズル４１のＹ軸方向旋回位置よりも、下ノズル４１からの洗浄水の噴射量（下ノズル４１の複数のノズル孔４１１，４１２からの洗浄水の合計噴射量）が多くなるように構成している。これによれば、洗浄能力が不足し勝ちな洗浄槽２のＸ軸方向各側の壁面近傍に置かれた食器類の洗浄能力を向上させることができる。 Therefore, in the present embodiment, the distribution means 6 is provided to change the distribution ratio of the cleaning water supplied from the cleaning pump 5 to the lower nozzle 41 and the upper nozzle 42 according to the turning position of the lower nozzle 41. Then, at the X-axis direction swivel position of the lower nozzle 41, the distribution means 6 is injected with the washing water from the lower nozzle 41 (plural nozzle holes 411 of the lower nozzle 41) rather than the Y-axis direction swivel position of the lower nozzle 41. , Total injection amount of wash water from 412) is configured to be large. According to this, it is possible to improve the cleaning ability of tableware placed in the vicinity of the wall surface on each side in the X-axis direction of the cleaning tank 2, which tends to have insufficient cleaning ability.

以下、図３も参照して、分配手段６について詳述する。洗浄槽２の底部には、下ノズル４１の底板部４１ａの長手方向中央部に設けられた上方に凹入するソケット部４１３に下方から挿入される、洗浄ポンプ５に接続される中空のジョイント部材６１が設けられている。ジョイント部材６１は、下ノズル４１をソケット部４１３を介して旋回自在に支持する軸支部材としても機能している。 Hereinafter, the distribution means 6 will be described in detail with reference to FIG. At the bottom of the cleaning tank 2, a hollow joint member connected to the cleaning pump 5 inserted from below into a socket portion 413 recessed upward provided in the central portion of the bottom plate portion 41a of the lower nozzle 41 in the longitudinal direction. 61 is provided. The joint member 61 also functions as a shaft support member that rotatably supports the lower nozzle 41 via the socket portion 413.

ジョイント部材６１の上端には、ソケット部４１３の上端に開設した上ノズル用連通口４１３ａを介して洗浄水を上ノズル４２に分配する上ノズル用分配口６２が開設されている。また、ジョイント部材６１の周面には、下ノズル４２の長手方向を向くソケット部４１３の周面部分に開設した下ノズル用連通口４１３ｂを介して洗浄水を下ノズル４１に分配する下ノズル用分配口６３が開設されている。そして、ジョイント部材６１により分配手段６が構成されている。このようにジョイント部材６１で分配手段６を構成すれば、構造が簡素化され、コストダウンを図る上で有利である。 At the upper end of the joint member 61, a distribution port 62 for the upper nozzle is opened to distribute the washing water to the upper nozzle 42 via the communication port 413a for the upper nozzle opened at the upper end of the socket portion 413. Further, on the peripheral surface of the joint member 61, the cleaning water is distributed to the lower nozzle 41 via the lower nozzle communication port 413b provided in the peripheral surface portion of the socket portion 413 facing the longitudinal direction of the lower nozzle 42. The distribution port 63 is open. The distribution means 6 is configured by the joint member 61. If the distribution means 6 is configured by the joint member 61 in this way, the structure is simplified and it is advantageous in terms of cost reduction.

ここで、下ノズル用分配口６３は、下ノズル４１のＸ軸方向旋回位置では、下ノズル４１のＹ軸方向旋回位置よりも、下ノズル４１からの洗浄水の噴射量が多くなるように、ジョイント部材６１の周方向位置によって開口面積が異なっている。より具体的に説明すれば、下ノズル４１がＸ軸方向旋回位置から下ノズル４１の旋回方向と逆方向に若干ずれた旋回位置に存するときに下ノズル用連通口４１３ｂに正対するジョイント部材６１の周面部分に開口面積の大きな第１の下ノズル用分配口６３１を開設し、また、下ノズル４１がＹ軸方向旋回位置から下ノズル４１の旋回方向と逆方向に若干ずれた旋回位置に存するときに下ノズル用連通口４１３ｂに正対するジョイント部材６１の周面部分に開口面積の小さな第２の下ノズル用分配口６３２を開設している。 Here, the distribution port 63 for the lower nozzle is set so that the injection amount of the washing water from the lower nozzle 41 is larger at the X-axis direction swivel position of the lower nozzle 41 than at the Y-axis direction swivel position of the lower nozzle 41. The opening area differs depending on the circumferential position of the joint member 61. More specifically, when the lower nozzle 41 is in a swivel position slightly deviated from the swivel position in the X-axis direction in the direction opposite to the swivel direction of the lower nozzle 41, the joint member 61 facing the lower nozzle communication port 413b faces. A first distribution port for the lower nozzle 63 1 having a large opening area is opened on the peripheral surface portion, and the lower nozzle 41 is positioned at a turning position slightly deviated from the turning position in the Y-axis direction in the direction opposite to the turning direction of the lower nozzle 41. It has opened a small second lower nozzle dispensing port 63 2 of the opening area on the peripheral surface portion of the positive against the joint member 61 to the communication port 413b for the lower nozzle when residing.

これによれば、下ノズル４１がＸ軸方向旋回位置から下ノズル４１の旋回方向と逆方向に若干ずれた旋回位置に存するときに、第１の下ノズル用分配口６３１を介して下ノズル４１に洗浄水が分配されて、下ノズル４１への洗浄水の分配比率が最も大きくなり、下ノズル４１がＹ軸方向旋回位置から下ノズル４１の旋回方向と逆方向に若干ずれた旋回位置に存するときに、第２の下ノズル用分配口６３２を介して下ノズル４１に洗浄水が分配されて、下ノズル４１への洗浄水の分配比率が最も小さくなる。尚、下ノズル４１への洗浄水の分配比率が変化してから下ノズル４１からの洗浄水の噴射量が変化するまでには多少の応答遅れがある。従って、上記の如く下ノズル４１がＸ軸方向旋回位置から下ノズル４１の旋回方向と逆方向に若干ずれた旋回位置に存するときに、下ノズル４１への洗浄水の分配比率が最大になることで、下ノズル４１がＸ軸方向旋回位置に存するときに、下ノズル４１からの洗浄水の噴射量が最大になる。 According to this, when existing in pivoted position the lower nozzle 41 is slightly displaced in the turning direction opposite to the direction of the bottom nozzle 41 from the X-axis direction pivoted position, the lower through the first dispensing port 63 1 for the lower nozzle nozzle The washing water is distributed to the 41, and the distribution ratio of the washing water to the lower nozzle 41 becomes the largest, and the lower nozzle 41 is moved to a turning position slightly deviated from the turning position in the Y-axis direction in the direction opposite to the turning direction of the lower nozzle 41. when residing, wash water is distributed to the lower nozzle 41 through the 2 second dispensing port 63 for the lower nozzle, the smallest is the distribution ratio of the cleaning water to the lower nozzle 41. There is a slight response delay between the change in the distribution ratio of the wash water to the lower nozzle 41 and the change in the injection amount of the wash water from the lower nozzle 41. Therefore, when the lower nozzle 41 is in a swivel position slightly deviated from the swivel position in the X-axis direction in the direction opposite to the swivel direction of the lower nozzle 41 as described above, the distribution ratio of the washing water to the lower nozzle 41 is maximized. Then, when the lower nozzle 41 is in the swivel position in the X-axis direction, the injection amount of the washing water from the lower nozzle 41 becomes maximum.

以上、本発明の実施形態について図面を参照して説明したが、本発明はこれに限定されない。例えば、上記実施形態では、第１と第２の各下ノズル用分配口６３１，６３２の形状が方形であるが、４隅にアールを付けた形状や楕円形であってもよい。また、ジョイント部材６１とソケット部４１３との間の隙間を上記実施形態のものよりも大きくし、ジョイント部材６１の外面に、上ノズル用分配口６２と第１と第２の下ノズル用分配口６３１，６３２とを夫々囲うようにして、ソケット部４１３の内面に近接対向する突条を突設し、或いは、ソケット部４１３の内面に、上ノズル用連通口４１３ａと下ノズル用連通口４１３ｂとを夫々囲うようにして、ジョイント部材６１の外面に近接対向する突条を突設してもよい。これによれば、ゴマなどの細かな残菜がジョイント部材６１とソケット部４１３との間の隙間に入っても、隙間が大きいため、下ノズル４１の旋回が妨げられることはなく、且つ、ジョイント部材６１とソケット部４１３との接触箇所が突条のみになって、摩擦が少なくなり、下ノズル４１がスムーズに旋回する。更に、下ノズル４１からの洗浄水の噴射量を、下ノズル４１がＸ軸方向旋回位置に存するときにＹ軸方向旋回位置に存するときよりも多くなるようにしつつ、下ノズル４１の長手方向が洗浄槽２の平面視形状である長方形の対角方向に沿う旋回位置に存するときに最大になるようにすることも可能である。 Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited thereto. For example, in the above embodiment, the shapes of the distribution ports 63 1 and 63 2 for the first and second lower nozzles are square, but they may be rounded at the four corners or oval. Further, the gap between the joint member 61 and the socket portion 413 is made larger than that of the above-described embodiment, and the upper nozzle distribution port 62 and the first and second lower nozzle distribution ports are provided on the outer surface of the joint member 61. A ridge that faces the inner surface of the socket portion 413 is provided so as to surround 63 1 and 63 2 , respectively, or a communication port for the upper nozzle 413a and a communication port for the lower nozzle are provided on the inner surface of the socket portion 413. Protruding ridges that face each other in close proximity to the outer surface of the joint member 61 may be provided so as to surround each of the 413b. According to this, even if fine leftovers such as sesame enter the gap between the joint member 61 and the socket portion 413, the gap is large, so that the rotation of the lower nozzle 41 is not hindered and the joint is not hindered. The contact point between the member 61 and the socket portion 413 is only a ridge, friction is reduced, and the lower nozzle 41 turns smoothly. Further, the longitudinal direction of the lower nozzle 41 is set so that the injection amount of the washing water from the lower nozzle 41 is larger when the lower nozzle 41 is in the swivel position in the X-axis direction than when it is in the swivel position in the Y-axis direction. It is also possible to maximize the cleaning tank 2 when it is in a turning position along the diagonal direction of the rectangular shape of the cleaning tank 2 in a plan view.

また、洗浄槽２の平面視形状がほぼ正方形であっても、洗浄槽２内の特定箇所に洗浄し難い食器類が置かれる場合には、この特定箇所に向けて洗浄水を噴射する旋回位置に下ノズル４１が存するときに、下ノズル４１からの洗浄水の噴射量が最大になるようにしてもよい。 Further, even if the shape of the washing tank 2 in a plan view is substantially square, if tableware that is difficult to wash is placed in a specific place in the washing tank 2, a swirling position for injecting washing water toward this specific place. When the lower nozzle 41 is present, the amount of the washing water injected from the lower nozzle 41 may be maximized.

２…洗浄槽、３…食器かご、４…洗浄ノズル、４１…下ノズル、４１３…ソケット部、４１３ａ…上ノズル用連通口、４１３ｂ…下ノズル用連通口、４２…上ノズル、５…洗浄ポンプ、６…分配手段、６１…ジョイント部材、６２…上ノズル用分配口、６３…下ノズル用分配口。 2 ... Cleaning tank, 3 ... Tableware basket, 4 ... Cleaning nozzle, 41 ... Lower nozzle, 413 ... Socket part, 413a ... Upper nozzle communication port, 413b ... Lower nozzle communication port, 42 ... Upper nozzle, 5 ... Cleaning pump , 6 ... Distributing means, 61 ... Joint member, 62 ... Upper nozzle distribution port, 63 ... Lower nozzle distribution port.

Claims (3)

食器類を支持する食器かごが収納された洗浄槽と、洗浄槽内に設けられた洗浄ノズルと、洗浄槽内の洗浄水を洗浄ノズルに供給する洗浄ポンプとを備える食器洗浄機であって、
洗浄ノズルは、洗浄槽の下部で水平方向にのび、長手方向中央部で鉛直軸線回りに旋回自在な下ノズルと、下ノズルの長手方向中央部に立設された上方にのびる上ノズルとを有するものにおいて、
洗浄ポンプから供給される洗浄水の下ノズルと上ノズルとへの分配比率を下ノズルの旋回位置に応じて可変する分配手段を備えることを特徴とする食器洗浄機。 A dishwashing machine equipped with a washing tank containing a tableware basket that supports tableware, a washing nozzle provided in the washing tank, and a washing pump that supplies the washing water in the washing tank to the washing nozzle.
The cleaning nozzle has a lower nozzle extending horizontally at the lower part of the cleaning tank and swinging around the vertical axis at the central portion in the longitudinal direction, and an upper nozzle extending upward standing at the central portion in the longitudinal direction of the lower nozzle. In things
A dishwasher characterized by being provided with a distribution means that changes the distribution ratio of the washing water supplied from the washing pump to the lower nozzle and the upper nozzle according to the turning position of the lower nozzle. 請求項１記載の食器洗浄機であって、前記洗浄槽の形状が平面視でほぼ長方形であるものにおいて、この長方形の長辺に平行な方向をＸ軸方向、短辺に平行な方向をＹ軸方向として、前記分配手段は、前記下ノズルの長手方向がＸ軸方向に沿う旋回位置では、下ノズルの長手方向がＹ軸方向に沿う旋回位置よりも、下ノズルからの洗浄水の噴射量が多くなるように構成されることを特徴とする食器洗浄機。 The dishwasher according to claim 1, wherein the shape of the washing tank is substantially rectangular in a plan view, the direction parallel to the long side of the rectangle is the X-axis direction, and the direction parallel to the short side is Y. As for the axial direction, in the distribution means, at the swivel position where the longitudinal direction of the lower nozzle is along the X-axis direction, the injection amount of wash water from the lower nozzle is larger than the swivel position where the longitudinal direction of the lower nozzle is along the Y-axis direction. A dishwasher characterized by being configured to have more. 請求項２記載の食器洗浄機であって、前記洗浄槽の底部に、前記下ノズルの底板部の長手方向中央部に設けられた上方に凹入するソケット部に下方から挿入される、前記洗浄ポンプに接続される中空のジョイント部材が設けられ、ジョイント部材の上端に、ソケット部の上端に開設した上ノズル用連通口を介して洗浄水を上ノズルに分配する上ノズル用分配口が開設されると共に、ジョイント部材の周面に、下ノズルの長手方向を向くソケット部の周面部分に開設した下ノズル用連通口を介して洗浄水を下ノズルに分配する下ノズル用分配口が開設されて、ジョイント部材で前記分配手段が構成され、下ノズルの長手方向が前記Ｘ軸方向に沿う旋回位置では、下ノズルの長手方向が前記Ｙ軸方向に沿う旋回位置よりも、下ノズルからの洗浄水の噴射量が多くなるように、ジョイント部材の周方向位置によって下ノズル用分配口の開口面積が異なることを特徴とする食器洗浄機。 The washing machine according to claim 2, wherein the washing is inserted into the bottom of the washing tank from below into a socket portion recessed upward provided in the central portion of the bottom plate portion of the lower nozzle in the longitudinal direction. A hollow joint member connected to the pump is provided, and at the upper end of the joint member, a distribution port for the upper nozzle that distributes the washing water to the upper nozzle via the communication port for the upper nozzle opened at the upper end of the socket portion is opened. At the same time, a distribution port for the lower nozzle is opened on the peripheral surface of the joint member to distribute the washing water to the lower nozzle via the communication port for the lower nozzle opened on the peripheral surface of the socket portion facing the longitudinal direction of the lower nozzle. The distribution means is configured by the joint member, and at the swivel position where the longitudinal direction of the lower nozzle is along the X-axis direction, the cleaning from the lower nozzle is performed from the swivel position where the longitudinal direction of the lower nozzle is along the Y-axis direction. A dishwasher characterized in that the opening area of the distribution port for the lower nozzle differs depending on the circumferential position of the joint member so that the amount of water jetted increases.
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