JP2007130142A

JP2007130142A - Dishwasher

Info

Publication number: JP2007130142A
Application number: JP2005324631A
Authority: JP
Inventors: Tadaaki Koketsu; 忠明纐纈
Original assignee: Toshiba Corp; Toshiba Consumer Marketing Corp; Toshiba Home Appliances Corp
Current assignee: Toshiba Corp; Toshiba Consumer Marketing Corp; Toshiba Lifestyle Products and Services Corp
Priority date: 2005-11-09
Filing date: 2005-11-09
Publication date: 2007-05-31

Abstract

<P>PROBLEM TO BE SOLVED: To perform washing in a wide range, to simplify a mechanism for moving a washing means, and further to simplify washing water piping to the washing means. <P>SOLUTION: In a washing tub 2, a washing nozzle 11 is provided so as to be moved linearly on guides 18 and 19. In the washing nozzle 11, a plurality of jetting ports 14a-14f and 15a-15f for jetting washing water into the washing tub 2 and washing dishes are formed. The washing nozzle 11 is linearly operated by a crank mechanism 23. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は洗浄手段を移動可能に設けた食器洗浄機に関する。 The present invention relates to a dishwasher provided with a movably moving cleaning means.

従来、食器洗浄機においては、洗浄手段としての噴射アームを回転可能に備えている。この噴射アームには多数の洗浄水噴射口が形成されている。この種食器洗浄機では、洗浄槽の中央部と隅部とでは洗浄水のかかり方が均一にならないことがあった。この対策として、洗浄槽内において噴射アームを直線的に移動し得る構成としたものがある（例えば特許文献１、２）
しかし、特許文献１に記載の食器洗浄機では、洗浄ノズルを移動させるために、ねじ棒や、このねじ棒を受けるねじ受けなどを有する構成としている。また洗浄ノズルへの洗浄水供給のために、フレキシブルホースによる配管を行う構成である。 2. Description of the Related Art Conventionally, a dishwasher is provided with a spray arm as a cleaning means so as to be rotatable. A large number of washing water ejection ports are formed in the ejection arm. In this type of tableware washing machine, there is a case where the washing water is not uniformly applied at the center and corners of the washing tank. As a countermeasure against this, there is a configuration in which the spray arm can be moved linearly in the cleaning tank (for example, Patent Documents 1 and 2).
However, the tableware washing machine described in Patent Document 1 is configured to include a screw rod and a screw receiver that receives the screw rod in order to move the washing nozzle. Moreover, it is the structure which performs piping by a flexible hose for the washing water supply to a washing nozzle.

また、特許文献２に記載の食器類の洗浄装置では、洗浄ノズルを移動させるために、給水案内管を洗浄槽内に左右に延びるように配管し、この給水案内管の外周面に、これを囲繞するように洗浄ノズルを移動可能に且つ通水可能に設け、そして、この洗浄ノズルを、ラックとピニオンといったギヤを備えた機構により移動させる構成としている。
実開昭６２−２７５５６号公報特開昭０２−４９６２５号公報 Further, in the tableware cleaning apparatus described in Patent Document 2, in order to move the cleaning nozzle, a water supply guide pipe is piped to extend left and right in the cleaning tank, and this is provided on the outer peripheral surface of the water supply guide pipe. The cleaning nozzle is provided so as to be movable and water-permeable so as to surround it, and the cleaning nozzle is moved by a mechanism having gears such as a rack and a pinion.
Japanese Utility Model Publication No. 62-27556 JP 02-49625 A

特許文献１及び特許文献２に記載のものでは、いずれも、洗浄ノズルを動かすための機構が構造で、しかも、特許文献１のものでは、洗浄ノズルを直線的に動かすための機構とは別にフレキシブルホースなどの配管が必要であって配管スペース（フレキシブルホースの動作スペース）を確保する必要があり、また、特許文献２のものでは、洗浄ノズルの移動距離以上にかなり長い給水案内管の配管が必要で、これまた配管が大形化するという問題があった。 In both of Patent Documents 1 and 2, the mechanism for moving the cleaning nozzle has a structure, and in Patent Document 1, the mechanism is flexible separately from the mechanism for moving the cleaning nozzle linearly. Piping such as a hose is required, and it is necessary to secure a piping space (flexible hose operating space). In the case of Patent Document 2, a water supply guide pipe that is considerably longer than the moving distance of the cleaning nozzle is required. There was also a problem that the piping was increased in size.

本発明は、上述の事情に鑑みてなされたものであり、その目的は、広範囲での洗浄を可能にでき、しかも洗浄手段を動かすための機構が簡単で、さらに洗浄手段への洗浄水配管を簡素化できる食器洗浄機を提供するにある。 The present invention has been made in view of the above-described circumstances, and its purpose is to enable cleaning in a wide range, a simple mechanism for moving the cleaning means, and a cleaning water pipe to the cleaning means. It is to provide a dishwasher that can be simplified.

請求項１の発明は、洗浄槽と、この洗浄槽に直線的に移動可能に設けられ、洗浄水を該洗浄槽内に噴射して食器類を洗浄する複数の噴射口を有する洗浄手段と、回転駆動力を発生する駆動手段と、この駆動手段の回転駆動力を直線運動に変換して前記洗浄手段を直線的に動作させ、且つ前記洗浄手段へ洗浄水を供給する洗浄水供給路の一部を構成するクランク機構とを備えてなるものである。 The invention of claim 1 is a cleaning tank and a cleaning means provided in the cleaning tank so as to be linearly movable, and having a plurality of injection ports for spraying cleaning water into the cleaning tank and cleaning dishes. A driving means for generating a rotational driving force; and a cleaning water supply path for converting the rotational driving force of the driving means into a linear motion to operate the cleaning means linearly and supplying cleaning water to the cleaning means. And a crank mechanism constituting the portion.

これによれば、洗浄手段を、洗浄槽において直線的に移動し得るように構成したから、広範囲での洗浄を可能にでき、しかも洗浄手段を動かす手段がクランク機構であるから、洗浄手段を動かすための機構が簡単で、さらにこのクランク機構が、洗浄手段への洗浄水供給路の一部を構成するから、洗浄手段への洗浄水配管を簡素化できる。 According to this, since the cleaning means is configured to be able to move linearly in the cleaning tank, it is possible to perform cleaning in a wide range, and the means for moving the cleaning means is a crank mechanism, so that the cleaning means is moved. For this reason, the crank mechanism forms a part of the cleaning water supply path to the cleaning means, so that the cleaning water piping to the cleaning means can be simplified.

本発明によれば、広範囲での洗浄を可能にでき、しかも洗浄手段を動かすための機構が簡単で、さらに洗浄手段への洗浄水配管を簡素化できる。 According to the present invention, cleaning in a wide range can be performed, the mechanism for moving the cleaning means is simple, and the cleaning water piping to the cleaning means can be simplified.

以下、本発明の第１の実施例について図１ないし図８を参照して説明する。図２には、扉を閉塞した状態の食器洗浄機１が示されている。図３には扉を開放した状態の食器洗浄機１が示されている。食器洗浄機１は、内部に洗浄槽２を有する洗浄機本体３と、洗浄機本体３の前面に設けられ、洗浄槽２の前面開口部を開閉するための下部扉４及び上部扉５とを備えて構成されている。なお、この下部扉４及び上部扉５は、図示しないリンク機構によって連動して回動するように連結されている。前記下部扉４の前面には、各種スイッチや表示部等を有する操作パネル６、扉４、５を開放させるための押しボタン７などが設けられている。また、上部扉５には、洗浄槽２内の水蒸気を排出するための排気口８が設けられている。 A first embodiment of the present invention will be described below with reference to FIGS. FIG. 2 shows the dishwasher 1 with the door closed. FIG. 3 shows the dishwasher 1 with the door open. The dishwasher 1 includes a washing machine body 3 having a washing tub 2 inside, and a lower door 4 and an upper door 5 provided on the front surface of the washing machine body 3 for opening and closing the front opening of the washing tub 2. It is prepared for. The lower door 4 and the upper door 5 are connected so as to rotate in conjunction with a link mechanism (not shown). On the front surface of the lower door 4, an operation panel 6 having various switches, a display unit, and the like, a push button 7 for opening the doors 4 and 5, and the like are provided. Further, the upper door 5 is provided with an exhaust port 8 for discharging water vapor in the cleaning tank 2.

洗浄槽２内の奥部には上部ノズル９が固定されている。この上部ノズル９は、洗浄槽２の内面に沿って左右に延びる帯状の中空部材９ａとその前面に形成された複数の噴射孔９ｂから構成されている。中空部材９ａの途中部位には洗浄槽２の下部まで延びる筒状部１０が一体的に設けられている。
さらに、洗浄槽２内の下部には洗浄手段たる洗浄ノズル１１がガイド１８、１９に沿って、左右方向（矢印Ａ方向及び矢印Ｂ方向）へ移動可能に設けられている。このガイド１８、１９は、線材から構成されていて、洗浄槽２の下部に相互に平行状態をなして左右方向に延びる形態に設けられている。 An upper nozzle 9 is fixed in the inner part of the cleaning tank 2. The upper nozzle 9 is composed of a strip-shaped hollow member 9 a extending left and right along the inner surface of the cleaning tank 2 and a plurality of injection holes 9 b formed on the front surface thereof. A cylindrical portion 10 that extends to the lower portion of the cleaning tank 2 is integrally provided at an intermediate portion of the hollow member 9a.
Further, a cleaning nozzle 11 serving as a cleaning means is provided in the lower part of the cleaning tank 2 so as to be movable in the left-right direction (arrow A direction and arrow B direction) along guides 18 and 19. The guides 18 and 19 are made of wire, and are provided in a form extending in the left-right direction in parallel with each other at the lower part of the cleaning tank 2.

この洗浄ノズル１１は、平面略Ｈ形の下部ケース１２と上部ケース１３とをねじや嵌合手段により接合して構成されており、右側において前後方向に延びる部分により第１の洗浄アーム１１ａが形成され、左右方向に延びる部分により連結アーム１１ｂが形成され、左側において前後方向に延びる部分により第２の洗浄アーム１１ｃが形成されている。これら第１の洗浄アーム１１ａ及び連結アーム１１ｂ並びに第２の洗浄アーム１１ｃは中空状をなして連通している。 The cleaning nozzle 11 is configured by joining a substantially case-shaped lower case 12 and an upper case 13 with screws or fitting means, and a first cleaning arm 11a is formed by a portion extending in the front-rear direction on the right side. The connecting arm 11b is formed by the portion extending in the left-right direction, and the second cleaning arm 11c is formed by the portion extending in the front-rear direction on the left side. The first cleaning arm 11a, the connecting arm 11b, and the second cleaning arm 11c communicate in a hollow shape.

前記第１の洗浄アーム１１ａの上面には複数の噴射口１４ａないし１４ｆが前後一列に配置された形態に形成されている。また、第２の洗浄アーム１１ｃの上面には複数の噴射口１５ａないし１５ｆが前後一列に配置された形態に形成されている。各噴射口１４ａないし１４ｆ及び１５ａないし１５ｆは、略細長な矩形状（洗浄水を拡散する形態）をなしており、洗浄ノズル１１の移動方向に対して傾斜する形態である。この場合、噴射口１４ａないし１４ｆのうち、手前側３個の噴射口１４ａないし１４ｃは、洗浄槽２の手前右側の隅部とその反対方向へ拡散する向き（その拡散の様子を図５及び図７に示す）に指向する細長矩形状をなし、また、向こう側３個の噴射口１４ｄないし１４ｆは、洗浄槽２の向こう右側の隅部とその反対方向へ拡散する向き（その拡散の様子を図５及び図７に示す）に指向する細長矩形状をなす。この場合、最前部の噴射口１４ａは拡散角度を大きくするために２箇所ほぼ連なる形態に形成されている。 A plurality of injection holes 14a to 14f are formed in a front and rear row in the upper surface of the first cleaning arm 11a. In addition, a plurality of injection ports 15a to 15f are formed on the upper surface of the second cleaning arm 11c so as to be arranged in a line in the front-rear direction. Each of the injection ports 14a to 14f and 15a to 15f has a substantially elongated rectangular shape (a form in which cleaning water is diffused) and is inclined with respect to the moving direction of the cleaning nozzle 11. In this case, of the jet nozzles 14a to 14f, the three jet nozzles 14a to 14c on the front side diffuse in the right front corner of the cleaning tank 2 and the opposite direction (the state of the diffusion is shown in FIGS. 7), and the three injection ports 14d to 14f on the far side are diffused in the opposite corner to the right corner of the cleaning tank 2 (the state of the diffusion). It has an elongated rectangular shape directed to (shown in FIGS. 5 and 7). In this case, the frontmost injection port 14a is formed in a form that is substantially continuous at two locations in order to increase the diffusion angle.

また、噴射口１５ａないし１５ｆのうち、手前側３個の噴射口１５ａないし１５ｃは、洗浄槽２の手前左側の隅部とその反対方向へ拡散する向き（その拡散の様子を図５及び図７に示す）に指向する細長矩形状をなし、また、向こう側３個の噴射口１５ｄないし１５ｆは、洗浄槽２の向こう左側の隅部とその反対方向へ拡散する向き（その拡散の様子を図５及び図７に二点鎖線で示す）に指向する細長矩形状をなす。この場合も、最前部の噴射口部１５ａは拡散角度を大きくするために２箇所ほぼ連なる形態に形成されている。 In addition, among the injection ports 15a to 15f, the three front injection ports 15a to 15c are diffused in the opposite left direction with respect to the front left corner of the cleaning tank 2 (the state of the diffusion is shown in FIGS. 5 and 7). The three injection ports 15d to 15f on the other side are diffused in the opposite corner to the left corner of the cleaning tank 2 (the state of the diffusion is illustrated). 5 and 7 (shown by a two-dot chain line). Also in this case, the frontmost injection port portion 15a is formed in a form that is substantially continuous at two locations to increase the diffusion angle.

また、この洗浄ノズル１１において、一方の噴射口列である一方の噴射口１４ａないし１４ｆの列１４Ｌの中間部分下部には、通水連通口１６（図４参照）が形成されている。そして、この洗浄ノズル１１の第１の洗浄アーム１１ａ及び第２の洗浄アーム１１ｃの各先端部下面には、図６に示すように、摺動受け部１７Ａ、１７Ｂ、１７Ｃ及び１７Ｄが形成されている。これら摺動受け部１７Ａ、１７Ｂ、１７Ｃ及び１７Ｄは、同じ構成であるので、摺動受け部１７Ａを代表して述べる。この摺動受け部１７Ａは、一対の平行なリブ１７ａ、１７ｂを有して構成されており、この平行なリブ１７ａ、１７ｂは左右方向に延びる形態をなしている。 Further, in this cleaning nozzle 11, a water communication port 16 (see FIG. 4) is formed at the lower part of the middle portion of the row 14L of the jet ports 14a to 14f which is one jet port row. As shown in FIG. 6, slide receiving portions 17A, 17B, 17C, and 17D are formed on the lower surfaces of the respective distal end portions of the first cleaning arm 11a and the second cleaning arm 11c of the cleaning nozzle 11. Yes. Since these sliding receiving portions 17A, 17B, 17C and 17D have the same configuration, the sliding receiving portion 17A will be described as a representative. The sliding receiving portion 17A includes a pair of parallel ribs 17a and 17b, and the parallel ribs 17a and 17b extend in the left-right direction.

各摺動受け部１７Ａ、１７Ｂ、１７Ｃ及び１７Ｄの各リブ１７ａ、１７ｂを前記ガイド１８、１９に摺動自在に嵌合することにより、洗浄ノズル１１が左右方向に移動可能に設けられている。なお、このリブ１７ａ、１７ｂの下端には図示しないが抜け止め用の爪部が形成されていて、洗浄ノズル１１の抜け止めが図られている。
前記洗浄槽２の底板部と洗浄機本体３との間には、図示しないがポンプが設けられており、これは、ポンプモータの回転方向を切り替えることで洗浄ポンプ及び排水ポンプのいずれかとして択一的に機能するものである。 By fitting the ribs 17a and 17b of the sliding receiving portions 17A, 17B, 17C and 17D to the guides 18 and 19 slidably, the cleaning nozzle 11 is provided so as to be movable in the left-right direction. Although not shown in the figure, a retaining claw portion is formed at the lower end of the ribs 17a and 17b to prevent the cleaning nozzle 11 from coming off.
A pump (not shown) is provided between the bottom plate portion of the washing tank 2 and the washing machine main body 3, and this is selected as either a washing pump or a drainage pump by switching the rotation direction of the pump motor. It functions as a single unit.

このポンプは洗浄時においては、前記図示しない貯水タンクの洗浄水を吸入して、洗浄水吐出管２０へ吐出するようになっている。この洗浄水吐出管２０には、図４に示すように、下部ケース２１と上部ケース２２とを接合して中空状に構成されている。この洗浄水吐出管２０には、図４及び図６に示すように前記ポンプの吐出口部と連結される下部連結口部２０ａが形成されていると共に、円筒状の上部連結口部２０ｂが形成されている。さらに、この上部連結口部２０ｂの直下部位には軸挿通孔部２０ｃが形成されている。 During cleaning, this pump sucks cleaning water from a water storage tank (not shown) and discharges it to the cleaning water discharge pipe 20. As shown in FIG. 4, the cleaning water discharge pipe 20 is formed in a hollow shape by joining a lower case 21 and an upper case 22. As shown in FIGS. 4 and 6, the cleaning water discharge pipe 20 is formed with a lower connection port portion 20a connected to the discharge port portion of the pump and a cylindrical upper connection port portion 20b. Has been. Further, a shaft insertion hole 20c is formed in a portion immediately below the upper connecting port 20b.

この洗浄水吐出管２０と前記洗浄ノズル１１との管にはクランク機構２３が連結されている。このクランク機構２３は、第１の腕部材２４と、第２の腕部材２５とから構成されている。第１の腕部材２４は下ケース２６と上ケース２７とを接合して中空状に構成されており、一端部側の下部に前記洗浄水吐出管２０の上部連結口部２０ｂと回転可能に連結される下部連結口部２４ａが形成され、他端部側の上部に上部連結口部２４ｂが形成されている。前記洗浄水吐出管２０の上部連結口部２０ｂの外周囲には断面凹状の係合部２０ｄが形成され、第１の腕部２４の下部連結口部２４ａの下端部には複数の爪状の被係合部２４ｃが形成され、それら係合部２０ｄ及び被係合部２４ｃの係合により、前記洗浄水吐出管２０の上部連結口部２０ｂと第１の腕部材２４の下部連結口部２４ａとが回転可能に且つ通水可能に連結されている。さらに、前記第１の腕部材２４の下部連結口部２４ａの内部には軸受け部２４ｄが通水を許容するように形成されている。この軸受け部２４ｄには軸挿通孔部２４ｅが形成されている。さらに下部連結口部２４ａの周囲には回転伝達結合部２４ｆが形成されている。 A crank mechanism 23 is connected to the pipe of the washing water discharge pipe 20 and the washing nozzle 11. The crank mechanism 23 includes a first arm member 24 and a second arm member 25. The first arm member 24 is formed in a hollow shape by joining a lower case 26 and an upper case 27, and is rotatably connected to an upper connection port portion 20b of the cleaning water discharge pipe 20 at a lower portion on one end side. The lower connecting port portion 24a is formed, and the upper connecting port portion 24b is formed in the upper portion on the other end side. An engaging portion 20d having a concave cross section is formed on the outer periphery of the upper connecting port portion 20b of the washing water discharge pipe 20, and a plurality of claw-like shapes are formed at the lower end portion of the lower connecting port portion 24a of the first arm portion 24. An engaged portion 24c is formed, and the upper connecting port portion 20b of the cleaning water discharge pipe 20 and the lower connecting port portion 24a of the first arm member 24 are formed by the engagement of the engaging portion 20d and the engaged portion 24c. And are connected so as to be able to rotate and pass water. Further, a bearing portion 24d is formed in the lower connecting port portion 24a of the first arm member 24 so as to allow water to pass therethrough. A shaft insertion hole 24e is formed in the bearing portion 24d. Further, a rotation transmission coupling portion 24f is formed around the lower connection port portion 24a.

前記洗浄水吐出管２０の下方部には、図示しない取り付け具を介して駆動手段たるモータ２８が縦軸状に設けられており、その回転軸２８ａには駆動軸２９が連結されている。この駆動軸２９は前記軸挿通孔部２０ｃ及び軸受け部２４ｄの軸挿通孔部２４ｅに回転可能に挿通されている。さらにこの駆動軸２９の先端部と前記回転伝達結合部２４ｆとが、回転伝達板２９ｂにより一体回転するように連結されている。従って、モータ１８により前記第１の腕部材２４が回転駆動されるようになっている。 Below the cleaning water discharge pipe 20, a motor 28 serving as a driving means is provided in a vertical axis shape via a fixture (not shown), and a driving shaft 29 is connected to the rotating shaft 28a. The drive shaft 29 is rotatably inserted through the shaft insertion hole 20c and the shaft insertion hole 24e of the bearing 24d. Further, the tip end portion of the drive shaft 29 and the rotation transmission coupling portion 24f are coupled to rotate integrally by a rotation transmission plate 29b. Accordingly, the first arm member 24 is rotationally driven by the motor 18.

また、この第１の腕部材２４において前記上部連結口部２４ｂには連結ボス部２４ｇが上方に延びる形態に形成されている。さらにこの上部連結口部２４ｂの外面周囲には二重環状リブ部２４ｈが形成されている。
前記第２の腕部材２５は、下ケース３０と上ケース３１とを接合して構成されており、一端部側の下部に下部連結口部２５ａが形成され、他端部側の上部に上部連結口部２５ａが形成されている。前記上部連結口部２５ｂには連結ボス部２５ｃが上方に延びる形態に形成され、さらにこの上部連結口部２４ｂの外面周囲には二重環状リブ部２５ｄが形成されている。 In the first arm member 24, a connecting boss portion 24g is formed in the upper connecting port portion 24b so as to extend upward. Further, a double annular rib portion 24h is formed around the outer surface of the upper connecting port portion 24b.
The second arm member 25 is configured by joining a lower case 30 and an upper case 31, and a lower connection port portion 25 a is formed at a lower portion on one end side, and an upper connection is formed on an upper portion on the other end side. A mouth portion 25a is formed. The upper connecting port portion 25b is formed with a connecting boss portion 25c extending upward, and a double annular rib portion 25d is formed around the outer surface of the upper connecting port portion 24b.

この第２の腕部材２５の一端部は、その下部連結口部２５ａ下端部が前記第１の腕部材２４の二重環状リブ部２４ｈに回転可能に嵌合されると共に、前記第１の腕部材２４の連結ボス部２４ｇに止め具３２を介して回転可能に支承されることにより、該第１の腕部材２４に回転可能に且つ通水可能に連結されている。
この第２の腕部材２５の他端部は、その上部連結口部２５ｂの二重環状リブ部２５ｄが前記洗浄ノズル１１の通水連通口１６下端部に嵌合されると共に、連結ボス部２５ｃに止め具３３を介して回転可能に支承されることにより、該洗浄ノズル１１に回転可能に且つ通水可能に連結されている。
従って、クランク機構２３の第２の腕部材２５は、洗浄ノズル１１の一方の噴射口列１４Ｌ部分に連結され、この連結部分と他方の噴射口列１５Ｌ部分とが連結アーム１１ｂにより通水可能に連結されている。 One end portion of the second arm member 25 is rotatably fitted to the double annular rib portion 24h of the first arm member 24 at the lower end portion of the lower connecting port portion 25a, and the first arm By being rotatably supported by the connecting boss portion 24g of the member 24 via the stopper 32, the first arm member 24 is rotatably connected to the first arm member 24 so as to be able to pass water.
At the other end of the second arm member 25, the double annular rib 25d of the upper connecting port 25b is fitted to the lower end of the water communication port 16 of the cleaning nozzle 11, and the connecting boss 25c. By being rotatably supported by the stopper 33, the washing nozzle 11 is connected to the washing nozzle 11 so as to be rotatable and capable of passing water.
Accordingly, the second arm member 25 of the crank mechanism 23 is connected to the one injection port row 14L portion of the cleaning nozzle 11, and the connection portion and the other injection port row 15L portion can pass water through the connection arm 11b. It is connected.

上記構成において、洗浄時に図示しないポンプから洗浄水が洗浄水吐出管２０に吐出されると、クランク機構２３の各腕部２４、２５の内部を通して洗浄ノズル１１に供給され、各噴射口１４ａないし１４ｆ及び１５ａないし１５ｆから洗浄槽２内に吐出される。この場合、クランク機構２３の第２の腕部材２５が、洗浄ノズル１１の一方の噴射口列１４Ｌ部分に連結され、この連結部分と他方の噴射口列１５Ｌ部分とが通水可能に連結されていることから、一方の噴射口列１４Ｌに属する噴射口１４ａないし１４ｆの洗浄水噴射圧と、他方の噴射口列１５Ｌに属する噴射口１５ａないし１５ｆの洗浄水噴射圧とが異なる構成となっている。 In the above configuration, when cleaning water is discharged from the pump (not shown) to the cleaning water discharge pipe 20 at the time of cleaning, it is supplied to the cleaning nozzle 11 through the arms 24 and 25 of the crank mechanism 23, and the injection ports 14a to 14f. And 15a to 15f are discharged into the cleaning tank 2. In this case, the second arm member 25 of the crank mechanism 23 is connected to one injection port row 14L portion of the cleaning nozzle 11, and this connection portion and the other injection port row 15L portion are connected to allow water to pass therethrough. Therefore, the washing water injection pressure of the injection ports 14a to 14f belonging to one injection port row 14L is different from the cleaning water injection pressure of the injection ports 15a to 15f belonging to the other injection port row 15L. .

そして、前記モータ２８が回転されると、第１の腕部材２４が図１の矢印Ｒで示すように円運動し、これに伴って、第２の腕部材２５の一端部が円運動をする。これにより該第２の腕部材２５の他端部が、洗浄ノズル１１をガイド１８、１９に沿って矢印Ａ方向へ移動させる（その移動途中状態を図５に示す）。つまり、クランク機構２３が、モータ２８の回転駆動力を直線運動に変換して前記洗浄ノズル１１を直線的に動作させる。しかもこのクランク機構２３は、該洗浄ノズル１１へ洗浄水を供給する洗浄水供給路の一部を構成する。 When the motor 28 is rotated, the first arm member 24 moves circularly as indicated by an arrow R in FIG. 1, and along with this, one end of the second arm member 25 moves circularly. . As a result, the other end of the second arm member 25 moves the cleaning nozzle 11 in the direction of arrow A along the guides 18 and 19 (the state during the movement is shown in FIG. 5). That is, the crank mechanism 23 converts the rotational driving force of the motor 28 into a linear motion and operates the cleaning nozzle 11 linearly. In addition, the crank mechanism 23 constitutes a part of a cleaning water supply path for supplying cleaning water to the cleaning nozzle 11.

前述のモータ２８の回転及びクランク機構２３の動作により、洗浄ノズル１１が矢印Ａ方向の移動限度位置（図８の実線で示す位置）に至ると、その後、矢印Ｂ方向へ移動し、もって、洗浄槽２内を洗浄ノズル１１が左右に往復移動する。この往復移動により、噴射口１４ａないし１４ｆ及び１５ａないし１５ｆからの洗浄水の強噴射範囲は、図８の領域（ハッチングで示す領域）となり、洗浄槽２内の隅々まで洗浄水が強く拡散されることとなる。 When the cleaning nozzle 11 reaches the movement limit position in the direction of arrow A (position indicated by the solid line in FIG. 8) due to the rotation of the motor 28 and the operation of the crank mechanism 23, the cleaning nozzle 11 is then moved in the direction of arrow B. The cleaning nozzle 11 reciprocates left and right in the tank 2. By this reciprocation, the strong injection range of the cleaning water from the injection ports 14a to 14f and 15a to 15f becomes the region of FIG. 8 (the region indicated by hatching), and the cleaning water is strongly diffused to every corner in the cleaning tank 2. The Rukoto.

特には、噴射口１４ａないし１４ｆ及び１５ａないし１５ｆが洗浄水を拡散する形態（矩形状）に形成され、該洗浄水の拡散方向は、洗浄ノズル１１の移動方向に対して傾斜するから、噴射口１４ａないし１４ｆ及び１５ａないし１５ｆから拡散する洗浄水が、食器の一点に対して２回（図７の拡散部分Ｓａ、Ｓｂ）当たるようになり、より確実に食器を洗浄できる。なお、回転式の洗浄ノズル５１、５２を設けた構成（参考例として示す図１０参照）では、洗浄水の強拡散領域も円形状をなして、隅々の食器類まで確実に洗浄することが難しいものであったが、本実施例では、確実に隅々の食器類まで洗浄できるものである。 In particular, the spray ports 14a to 14f and 15a to 15f are formed in a form (rectangular shape) for diffusing the cleaning water, and the diffusing direction of the cleaning water is inclined with respect to the moving direction of the cleaning nozzle 11. Wash water diffusing from 14a to 14f and 15a to 15f hits one point of the tableware twice (diffusion portions Sa and Sb in FIG. 7), so that the tableware can be washed more reliably. In addition, in the structure (refer FIG. 10 shown as a reference example) which provided the rotary washing nozzles 51 and 52, the strong diffusion area | region of washing water also makes circular shape, and it can wash | clean to every corner tableware reliably. Although it was difficult, in this embodiment, it is possible to reliably clean every corner of the tableware.

このような本実施例によれば、洗浄ノズル１１を、洗浄槽２に直線的に移動し得るようにしたから、広範囲での洗浄を可能にでき、しかも洗浄ノズル１１を直線的に動かす手段がクランク機構２３であるから、洗浄ノズル１１を動かすための機構が簡単で、さらにこのクランク機構２３が、洗浄ノズル１１への洗浄水供給路の一部を構成するから、洗浄ノズル１１への洗浄水配管を簡素化できる。 According to the present embodiment, since the cleaning nozzle 11 can be moved linearly to the cleaning tank 2, cleaning over a wide range is possible, and means for moving the cleaning nozzle 11 linearly is provided. Since it is the crank mechanism 23, the mechanism for moving the cleaning nozzle 11 is simple, and since this crank mechanism 23 constitutes a part of the cleaning water supply path to the cleaning nozzle 11, the cleaning water to the cleaning nozzle 11 is provided. Piping can be simplified.

また、本実施例によれば、クランク機構２３を、モータ２８の回転駆動力を受けて円運動する第１の腕部材２４と、一端部がこの第１の腕部材２４に回転可能に連結され且つ他端部が洗浄ノズル１１に回転可能に連結された第２の腕部材２５とから構成したから、簡単なクランク構成でありながら、洗浄ノズル１１を直線移動させることができ、また、水路構成も比較的簡単となる。
さらにまた、本実施例によれば、洗浄ノズル１１は、移動方向と直行する方向に噴射口１４ａないし１４ｆおよびを配列し、この噴射口列を少なくとも２列備えているから、１列の場合に比して、洗浄ノズル１１の移動距離を略半分にでき、クランク機構２３の腕部材２４、２５を小形化でき、駆動源であるモータ２８の小形化を図ることができる。 Further, according to the present embodiment, the crank mechanism 23 is connected to the first arm member 24 that circularly receives the rotational driving force of the motor 28, and one end portion of the crank mechanism 23 is rotatably connected to the first arm member 24. In addition, since the other end portion is composed of the second arm member 25 rotatably connected to the cleaning nozzle 11, the cleaning nozzle 11 can be linearly moved while having a simple crank configuration, and a water channel configuration Is also relatively simple.
Furthermore, according to the present embodiment, the cleaning nozzle 11 has the injection ports 14a to 14f arranged in a direction perpendicular to the moving direction, and has at least two injection port rows. In comparison, the moving distance of the cleaning nozzle 11 can be reduced to approximately half, the arm members 24 and 25 of the crank mechanism 23 can be reduced in size, and the motor 28 as a drive source can be reduced in size.

さらに本実施例によれば、クランク機構２３の第２の腕部材２５を、一方の噴射口列１４Ｌ部分に連結し、この連結部分と他方の噴射口列１５Ｌ部分とを通水可能に連結しているから、まず一方の噴射口列１４Ｌに属する噴射口１４ａないし１４ｆに洗浄水を供給し、次に他方の噴射口列に属する噴射口１５ａないし１５ｆに洗浄水を供給することになり、一方の噴射口１４ａないし１４ｆの噴射圧を他方の噴射口１５ａないし１５ｆの噴射圧よりも強くすることが期待できる。 Furthermore, according to the present embodiment, the second arm member 25 of the crank mechanism 23 is connected to one of the injection port arrays 14L, and the connection portion and the other injection port array 15L are connected so that water can flow. Therefore, the cleaning water is first supplied to the injection ports 14a to 14f belonging to one of the injection port rows 14L, and then the cleaning water is supplied to the injection ports 15a to 15f belonging to the other injection port row. It can be expected that the injection pressure of the other injection ports 14a to 14f is made stronger than the injection pressure of the other injection ports 15a to 15f.

この場合には、他方の噴射口１５ａないし１５ｆに第２の腕部材２５を連結して、この噴射口１５ａないし１５ｆの噴射圧を強くするようにしても良い。このように一方の噴射口列１４Ｌと他方の噴射口列１５Ｌとの噴射圧を異ならせることにより、食器類をその汚れ度合いにあった配置とすれば、食器類に汚れ度合いの相違があっても良好に洗浄できる。
なお、この場合、洗浄ノズル１１の内部に適宜水圧調整部材などを設けて、噴射口列１４Ｌと１５Ａとの噴射圧を均等に設定するようにしても良い。あるいは、クランク機構２３の第２の腕部材２５を連結アーム１１ｂの略中間部に設けて、噴射口列１４Ｌと１５Ｌとの噴射圧を均等に設定するようにしても良い。 In this case, the second arm member 25 may be connected to the other injection ports 15a to 15f to increase the injection pressure of the injection ports 15a to 15f. In this way, if the tableware is arranged in accordance with the degree of contamination by differentiating the injection pressures of the one injection port array 14L and the other injection port array 15L, the tableware has a difference in the degree of contamination. Can also be cleaned well.
In this case, a water pressure adjusting member or the like may be appropriately provided inside the cleaning nozzle 11 so that the injection pressures of the injection port arrays 14L and 15A are set evenly. Or the 2nd arm member 25 of the crank mechanism 23 may be provided in the substantially intermediate part of the connection arm 11b, and you may make it set the injection pressure of the injection nozzle rows 14L and 15L equally.

また、本実施例によれば、噴射口１４ａないし１４ｆ及び１５ａないし１５ｆを、洗浄水が洗浄ノズル１１の移動方向に対して傾斜して拡散するように構成したので、噴射口１４ａないし１４ｆ及び１５ａないし１５ｆから拡散する洗浄水が、食器の一点に対して２回当たるようになり、より確実に食器を洗浄できる。特に、上記拡散方向を洗浄槽２の隅部に指向させるようにしたので、洗浄槽２内の食器類を隈なく洗浄できる。 In addition, according to the present embodiment, the injection ports 14a to 14f and 15a to 15f are configured so that the cleaning water diffuses in an inclined direction with respect to the moving direction of the cleaning nozzle 11, and therefore the injection ports 14a to 14f and 15a. In addition, the washing water diffusing from 15f comes to hit twice with respect to one point of the tableware, so that the tableware can be washed more reliably. In particular, since the diffusion direction is directed to the corner of the cleaning tank 2, the dishes in the cleaning tank 2 can be thoroughly cleaned.

図９は本発明の第２の実施例を示しており、この実施例では、クランク機構２３の駆動源としてモータに代えて羽根車４１を、クランク機構２３の第１の腕部材２４に形成している。この羽根車４１は、第１の腕部材２４の下ケース２６の下部連結口部２４ａの周縁内面に図示のように形成されており、ポンプからの洗浄水の水流により矢印Ｖ方向に回転されるようになっている。
なお、本発明は上記各実施例に限定されず、次のように変更して実施しても良い。洗浄ノズル１１はガイド１８、１９に対してローラなどにより移動可能に設けられる構成でも良い。また、洗浄ノズル１１は噴射口列を２列設けたが、これは１列でも３列以上でも良い。クランク機構２３の各腕部材２４、２５の連結構造は種々変更しても良い。 FIG. 9 shows a second embodiment of the present invention. In this embodiment, an impeller 41 is formed on the first arm member 24 of the crank mechanism 23 as a drive source of the crank mechanism 23 in place of the motor. ing. The impeller 41 is formed on the inner peripheral surface of the lower connection port portion 24a of the lower case 26 of the first arm member 24 as shown in the figure, and is rotated in the direction of arrow V by the flow of cleaning water from the pump. It is like that.
In addition, this invention is not limited to said each Example, You may implement as changed as follows. The cleaning nozzle 11 may be configured to be movable with respect to the guides 18 and 19 by rollers or the like. In addition, although the cleaning nozzle 11 is provided with two rows of injection ports, this may be one row or three or more rows. The connecting structure of the arm members 24 and 25 of the crank mechanism 23 may be variously changed.

本発明の第１の実施例を示す洗浄槽底部部分の斜視図The perspective view of the washing tank bottom part which shows 1st Example of this invention 食器洗浄機の斜視図Perspective view of dishwasher 扉を開放した状態の食器洗浄機の斜視図Perspective view of dishwasher with door open クランク機構及び洗浄ノズル部分の断面図Cross section of crank mechanism and cleaning nozzle クランク機構及び洗浄ノズル部分の斜視図Perspective view of crank mechanism and cleaning nozzle part クランク機構及び洗浄ノズル部分を下方から見た斜視図The perspective view which looked at the crank mechanism and the washing nozzle part from the lower part クランク機構及び洗浄ノズル部分の平面図Plan view of crank mechanism and cleaning nozzle 洗浄ノズルの移動範囲と洗浄水拡散の様子とを説明するための図Diagram for explaining the movement range of the washing nozzle and the state of washing water diffusion 本発明の第２の実施例を示す第１の腕部材の下ケースの斜視図The perspective view of the lower case of the 1st arm member which shows the 2nd Example of this invention 参考例を示す図８相当図FIG. 8 equivalent diagram showing a reference example

Explanation of symbols

図面中、１は食器洗浄機、２は洗浄槽、１１は洗浄ノズル（洗浄手段）、１１ａは第１の洗浄アーム部、１１ｃは第２の洗浄アーム部、１４ａないし１４ｆ及び１５ａないし１５ｆは噴射口、１４Ｌ、１５Ｌは噴射口列、１７Ａ、１７Ｂ、１７Ｃ及び１７Ｄは摺動受け部、１８、１９はガイド、２０は洗浄水吐出管、２３はクランク機構、２４は第１の腕部材、２５は第２の腕部材、２８はモータ（駆動手段）、４１は羽根車（駆動手段）を示す。 In the drawings, 1 is a dishwasher, 2 is a washing tank, 11 is a washing nozzle (washing means), 11a is a first washing arm, 11c is a second washing arm, and 14a to 14f and 15a to 15f are jets. Ports 14L and 15L are injection port arrays, 17A, 17B, 17C and 17D are sliding receiving portions, 18 and 19 are guides, 20 is a washing water discharge pipe, 23 is a crank mechanism, 24 is a first arm member, 25 Denotes a second arm member, 28 denotes a motor (driving means), and 41 denotes an impeller (driving means).

Claims

A washing tank;
A cleaning means provided in the cleaning tank so as to be linearly movable, and having a plurality of injection ports for spraying cleaning water into the cleaning tank to clean dishes.
Driving means for generating a rotational driving force;
A crank mechanism that converts a rotational driving force of the driving means into a linear motion to operate the cleaning means linearly and constitutes a part of a cleaning water supply path that supplies cleaning water to the cleaning means. Become a dishwasher.

The crank mechanism has a first arm member that circularly receives the rotational driving force of the driving means, one end portion rotatably connected to the first arm member, and the other end rotatably connected to the cleaning means. The dishwasher according to claim 1, wherein the dishwasher is composed of a second arm member.

2. The dishwasher according to claim 1, wherein the cleaning means arranges the injection ports in a direction perpendicular to the moving direction and includes at least two rows of the injection ports.

The second arm member of the crank mechanism is connected to one injection port row portion, and the connection portion and the other injection port row portion are connected so as to allow water to pass therethrough. Dishwasher.

4. The dishwasher according to claim 3, wherein the washing water jet pressure of the jet port belonging to one jet port row is different from the wash water jet pressure of the jet port belonging to the other jet row.

2. The dishwasher according to claim 1, wherein the spray port is formed in a form for diffusing the wash water, and the diffusing direction of the wash water is inclined with respect to the moving direction of the spray means.