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JP4614817B2 - Spray nozzle for dishwasher - Google Patents
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JP4614817B2 - Spray nozzle for dishwasher - Google Patents

Spray nozzle for dishwasher Download PDF

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JP4614817B2
JP4614817B2 JP2005125687A JP2005125687A JP4614817B2 JP 4614817 B2 JP4614817 B2 JP 4614817B2 JP 2005125687 A JP2005125687 A JP 2005125687A JP 2005125687 A JP2005125687 A JP 2005125687A JP 4614817 B2 JP4614817 B2 JP 4614817B2
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nozzle
injection
nozzle body
cleaning
dishwasher
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JP2006296885A (en
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衛 津森
芳正 為石
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Hoshizaki Electric Co Ltd
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Hoshizaki Electric Co Ltd
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Description

本発明は、洗浄室内で食器類に向けて水を噴射する食器洗浄機用噴射ノズルに関するものである。   The present invention relates to an injection nozzle for a dishwasher that injects water toward dishes in a washing chamber.

従来、このような分野の技術において、食器類を均一に洗浄又は濯ぎするための対策として、3本のノズル本体毎に異なる位置に噴射穴を設ける技術が特開2000−254079号公報及び特開平6−233736号公報に開示されている。   Conventionally, in the technology in such a field, as a countermeasure for uniformly washing or rinsing tableware, a technique of providing injection holes at different positions for each of the three nozzle bodies is disclosed in Japanese Patent Laid-Open Nos. 2000-254079 and Hei. This is disclosed in Japanese Patent No. 6-233736.

特開2000−254079号JP 2000-254079 A 特開平6−233736号公報Japanese Patent Laid-Open No. 6-233736

このような噴射ノズルに一般的に利用されている噴射穴を模式的に図9に示すと、ノズル本体100に設けられている噴射穴101は、この長手軸線Pに沿ってノズル本体100の根元側の幅と先端側の幅とが同一である。また、ノズル本体100内の水は、根元側から先端側に向けて高圧で搬送されるばかりか、噴射力によりノズル自体が回転する際の遠心力の影響をも受ける。その結果として、噴射穴101から噴射される水は、二点鎖線で示すような末広がりの噴射領域S1,S2を形成することになる。さらに、図10に示すように、噴射孔101の前側で噴射量が多くなるといった事態も発生する。このように、不均一な噴射が発生する結果として、洗浄ムラや濯ぎムラを引き起こし易くなるので、洗浄時間の短縮を図り難いといった問題点がある。   FIG. 9 schematically shows an injection hole that is generally used for such an injection nozzle. The injection hole 101 provided in the nozzle body 100 is formed along the longitudinal axis P of the nozzle body 100. The width on the side and the width on the tip side are the same. In addition, the water in the nozzle body 100 is not only transported at a high pressure from the base side to the tip side, but is also affected by the centrifugal force when the nozzle itself rotates due to the jetting force. As a result, the water sprayed from the spray hole 101 forms spray areas S1 and S2 having a widening end as indicated by a two-dot chain line. Furthermore, as shown in FIG. 10, a situation occurs in which the injection amount increases on the front side of the injection hole 101. As described above, as a result of the occurrence of non-uniform injection, it becomes easy to cause uneven cleaning and uneven rinsing, so that it is difficult to shorten the cleaning time.

本発明は、均一な噴射を可能にした食器洗浄機用噴射ノズルを提供することを目的とする。   An object of this invention is to provide the injection nozzle for dishwashers which enabled uniform injection.

本発明は、洗浄室内に配置されて、ノズル本体に設けられた噴射穴から水を噴射して回転する食器洗浄機用噴射ノズルにおいて、ノズル本体の噴射穴の開口幅は、水平方向において、ノズル本体の根元側の端部から先端側の端部にゆくにつれて狭くなっていることを特徴とする。 This onset Ming is disposed in the cleaning chamber, the injection nozzle dishwasher rotating water jet from the injection hole provided in the nozzle body, the opening width of the jet hole of the nozzle body, in the horizontal direction, It is characterized by becoming narrower as it goes from the end on the base side of the nozzle body to the end on the tip side.

この食器洗浄機用噴射ノズルにおいて、噴射穴の開口幅は、ノズル本体の根元側を広く、先端側を狭くしたことで、ノズル本体の根元側から先端側に向けて高圧で搬送される水流と、噴射力によりノズル自体が回転する際の遠心力の影響とを考慮した均一な噴射を可能にすることが実験により確かめられている。   In this dishwasher spray nozzle, the opening width of the spray hole is such that the base side of the nozzle body is wide and the tip side is narrow, so that the water flow conveyed at high pressure from the base side of the nozzle body toward the tip side It has been confirmed by experiments that uniform injection is possible in consideration of the influence of centrifugal force when the nozzle itself rotates by the injection force.

また、噴射穴は、クサビ状に形成されていると好適である。このような形状の噴射穴は、均一な噴射を達成させる上で最適であると言える。   Moreover, it is preferable that the injection hole is formed in a wedge shape. It can be said that the injection hole having such a shape is optimal for achieving uniform injection.

また、ノズル本体には、複数の噴射穴が設けられ、各噴射穴の長手軸線とノズル本体の長手軸線とのなす配置角度は、同一且つ鋭角であると好適である。このような構成を採用することで、噴射領域の重なりを可能な限り少なくすることができ、効率の良い均一な噴射が可能となり、洗浄室内の食器類の均一な洗浄又は濯ぎを短時間で達成させることができる。   The nozzle body is provided with a plurality of injection holes, and the arrangement angle formed between the longitudinal axis of each injection hole and the longitudinal axis of the nozzle body is preferably the same and acute. By adopting such a configuration, it is possible to minimize the overlapping of the injection areas as much as possible, enabling efficient and uniform injection, and achieving uniform cleaning or rinsing of dishes in the cleaning room in a short time. Can be made.

本発明によれば、水の均一な噴射を可能にして、食器類の効率の良い洗浄又は濯ぎを達成させることができる。   According to the present invention, it is possible to achieve a uniform spray of water and achieve efficient cleaning or rinsing of dishes.

以下、図面を参照しつつ本発明に係る食器洗浄機用噴射ノズルの好適な実施形態について詳細に説明する。   Hereinafter, a preferred embodiment of a spray nozzle for a dishwasher according to the present invention will be described in detail with reference to the drawings.

図1及び図2に示すように、食器洗浄機1は、ステンレス製の洗浄機本体2を有している。この洗浄機本体2は、洗浄室3が形成された上側部分2aと、機械室4が形成された下側部分2bとに仕切られている。さらに、洗浄機本体2の背面側におけるコーナ部には、上側部分2aと下側部分2bとに渡って上下方向に延びる支柱6が配置され、支柱6,6間には背面パネル5が延在している。   As shown in FIG.1 and FIG.2, the dishwasher 1 has the washing machine main body 2 made from stainless steel. The cleaning machine body 2 is partitioned into an upper part 2a in which the cleaning chamber 3 is formed and a lower part 2b in which the machine room 4 is formed. Further, a column 6 extending in the vertical direction across the upper portion 2 a and the lower portion 2 b is disposed at the corner portion on the back side of the cleaning machine body 2, and the back panel 5 extends between the columns 6 and 6. is doing.

また、洗浄機本体2の上側部分2aには、洗浄室3の開閉を行うための箱型のドア7が設けられている。このドア7は、左右一対のステンレス製支柱6よりも内側に配置された左右一対のガイドレール(図示せず)により上下方向に案内されると共に、前方において水平方向に延在するハンドル8によって上下動させることができる。このハンドル8の両端には左右一対の回動アーム10,10の先端が固定され、各回動アーム10はドア7の側面7aに沿って斜めに配置されている。そして、ハンドル8の回動運動に対してドア7を上下運動させる必要があるので、回動アーム10には、ドア7の側面7aに沿って配置されたリンク部16の上端が回動自在に連結され、リンク部16の下端は、軸ピン16aを介してドア7に連結されている。なお、洗浄機本体2の底面の四隅には脚部9が取り付けられており、食器洗浄機1の安定した設置が可能となっている。   A box-shaped door 7 for opening and closing the cleaning chamber 3 is provided on the upper portion 2 a of the cleaning machine body 2. The door 7 is guided in the vertical direction by a pair of left and right guide rails (not shown) disposed inside the pair of left and right stainless steel columns 6 and is vertically moved by a handle 8 extending horizontally in front. Can be moved. The ends of a pair of left and right pivot arms 10 are fixed to both ends of the handle 8, and each pivot arm 10 is disposed obliquely along the side surface 7 a of the door 7. And since it is necessary to move the door 7 up and down with respect to the rotational movement of the handle 8, the upper end of the link part 16 arrange | positioned along the side surface 7a of the door 7 can rotate freely in the rotational arm 10. FIG. It is connected and the lower end of the link part 16 is connected with the door 7 via the shaft pin 16a. In addition, the leg part 9 is attached to the four corners of the bottom face of the washing machine main body 2, and the stable installation of the dishwasher 1 is possible.

上述した洗浄室3内には、跳ね上げ式のラックレール11が着脱自在に配置されており、このラックレール11上に、飲食後の食器類が並べられた格子状の食器ラック(図示せず)が載置される。更に、洗浄室3内の上部には、放射状に延びる3本のアームを有する回転自在な上側洗浄ノズル12と、一直線状に延びる2本のアームを有する回転自在な上側濯ぎノズル13とが同心的に配置されている。同様に、洗浄室3内の下部には、回転自在な下側洗浄ノズル14と下側濯ぎノズル15とが同心的に配置されている。   A flip-up rack rail 11 is detachably disposed in the cleaning chamber 3 described above, and a grid-like tableware rack (not shown) in which tableware after eating and drinking is arranged on the rack rail 11. ) Is placed. Furthermore, in the upper part of the cleaning chamber 3, a rotatable upper cleaning nozzle 12 having three arms extending radially and a rotatable upper rinsing nozzle 13 having two arms extending in a straight line are concentric. Is arranged. Similarly, a rotatable lower cleaning nozzle 14 and a lower rinsing nozzle 15 are concentrically disposed in the lower part of the cleaning chamber 3.

このような構成を有する洗浄室3の底部には、機械室4内に突出するように洗浄水タンク17が形成されており、洗浄室3と洗浄水タンク17との間には、残菜フィルタ18が着脱自在に配置されている。この洗浄水タンク17の前面には、洗浄水タンク17内に吸込口及び吐出口が位置するような洗浄水供給ポンプ(以下「洗浄ポンプ」という)19が直付けされており、部品点数の減少化と省スペース化とが達成されている。この洗浄ポンプ19の吐出口には洗浄水流通管21が接続され、この洗浄水流通管21は、洗浄タンク17内及び洗浄室3内を通って、上側洗浄ノズル12と下側洗浄ノズル14とに接続されている。   A washing water tank 17 is formed at the bottom of the washing chamber 3 having such a structure so as to protrude into the machine room 4, and a leftover filter is provided between the washing chamber 3 and the washing water tank 17. 18 is detachably disposed. A cleaning water supply pump (hereinafter referred to as “cleaning pump”) 19 in which a suction port and a discharge port are located in the cleaning water tank 17 is directly attached to the front surface of the cleaning water tank 17 to reduce the number of parts. And space saving have been achieved. A washing water circulation pipe 21 is connected to the discharge port of the washing pump 19, and the washing water circulation pipe 21 passes through the washing tank 17 and the washing chamber 3, and the upper washing nozzle 12 and the lower washing nozzle 14. It is connected to the.

更に、機械室4内には、外部の給湯器(図示せず)から濯ぎ水が供給される濯ぎ水タンク22が収容されており、この濯ぎ水タンク22には、吸込管23を介して濯ぎ水供給ポンプ(以下「濯ぎポンプ」という)24が接続されている。この濯ぎポンプ24は、縦置き状態で設置されており、機械室4内のスペースの有効利用が図られている。この濯ぎポンプ24の吐出口には吐出管26が接続され、この吐出管26の端部26aは洗浄水タンク17内に延在している。そして、吐出管26の端部26aには濯ぎ水流通管27が接続され、この濯ぎ水流通管27は、洗浄タンク17内及び洗浄室3内を通って、上側濯ぎノズル13と下側濯ぎノズル15とに接続されている。なお、機械室4内には、食器洗浄機1の動作全般を制御するマイクロコンピュータ等が内蔵された電装ボックス(図示せず)等も収容されている。   Further, a rinsing water tank 22 to which rinsing water is supplied from an external water heater (not shown) is accommodated in the machine room 4, and the rinsing water tank 22 is rinsed through a suction pipe 23. A water supply pump (hereinafter referred to as “rinse pump”) 24 is connected. The rinsing pump 24 is installed in a vertically placed state, and the space in the machine room 4 is effectively used. A discharge pipe 26 is connected to the discharge port of the rinse pump 24, and an end portion 26 a of the discharge pipe 26 extends into the cleaning water tank 17. A rinsing water flow pipe 27 is connected to the end portion 26a of the discharge pipe 26. The rinsing water flow pipe 27 passes through the cleaning tank 17 and the cleaning chamber 3, and passes through the upper rinsing nozzle 13 and the lower rinsing nozzle. 15. In the machine room 4, an electrical box (not shown) in which a microcomputer or the like for controlling the overall operation of the dishwasher 1 is housed is also housed.

ここで、前述した食器洗浄機1に適用される上側洗浄ノズル(上側噴射ノズル)12は、洗浄水流通管21の先端に回転自在に装着された樹脂製のボス部30と、ボス部30から放射状に延在する3本のステンレス製ノズル本体32とから構成されている。また、ノズル本体32の清掃や組立てを考慮して、各ノズル本体32の基端は、ネジ31(図6参照)によってボス部30に着脱自在に取り付けられている。   Here, an upper cleaning nozzle (upper spray nozzle) 12 applied to the above-described dishwasher 1 includes a resin boss portion 30 rotatably attached to the tip of the washing water circulation pipe 21 and a boss portion 30. It is comprised from the three stainless steel nozzle bodies 32 extended radially. In consideration of cleaning and assembly of the nozzle main body 32, the base end of each nozzle main body 32 is detachably attached to the boss portion 30 with a screw 31 (see FIG. 6).

図3,図4に示すように、ノズル本体32は扁平な円筒状に形成されることで、省スペース化が図られ、洗浄室3を広く使うことができる。このノズル本体32には、外方に向けて山形に膨出した2個の突出部33,34が設けられ、各突出部33,34の頂部には噴射穴33a,34aが設けられている。従って、突出部33,34で残水を集めながら洗浄水を噴射穴33a,34aに確実に導くことができので、このことは、残水の切れを良好にすることができる。   As shown in FIGS. 3 and 4, the nozzle body 32 is formed in a flat cylindrical shape, so that space saving is achieved and the cleaning chamber 3 can be widely used. The nozzle body 32 is provided with two projecting portions 33 and 34 that bulge outwardly toward the outside, and injection holes 33a and 34a are provided at the tops of the projecting portions 33 and 34, respectively. Accordingly, since the washing water can be reliably guided to the injection holes 33a and 34a while collecting the remaining water by the protrusions 33 and 34, this can improve the drainage of the remaining water.

図4〜図6に示すように、ノズル本体32の各噴射穴33a,34aの開口幅Wは、ノズル本体32の根元側が広く、先端側が狭くなっている。すなわち、開口幅Wは、ノズル本体32の根元側から先端側にゆくに連れて連続的に狭くなっている。このようにして、噴射穴33a,34aは、クサビ状に形成される。また、噴射穴33a,34aの根元側及び先端側はR形状を有している。また、先端側の噴射穴33aと根元側の噴射穴34aとは同一形状を有する。なお、前述の「開口幅」は、噴射穴33a,34aの長手軸線Pに対して直交する方向の幅をいう。   As shown in FIGS. 4 to 6, the opening width W of each of the injection holes 33 a and 34 a of the nozzle body 32 is wide on the base side of the nozzle body 32 and narrows on the tip side. That is, the opening width W is continuously narrowed from the base side to the tip side of the nozzle body 32. In this way, the injection holes 33a and 34a are formed in a wedge shape. Further, the base side and the tip side of the injection holes 33a, 34a have an R shape. The tip side injection hole 33a and the base side injection hole 34a have the same shape. The aforementioned “opening width” refers to a width in a direction perpendicular to the longitudinal axis P of the injection holes 33a and 34a.

このような形状の噴射穴33a,34aを採用することで、図6及び図7に示すように、ノズル本体32の根元側から先端側に向けて高圧で搬送される水流と、噴射力によりノズル12自体が回転する際の遠心力の影響と、を考慮した均一な噴射が実現できた。   By adopting the injection holes 33a and 34a having such a shape, as shown in FIGS. 6 and 7, the nozzle is formed by the water flow and the injection force conveyed at a high pressure from the base side to the tip side of the nozzle body 32. Uniform injection was realized in consideration of the influence of centrifugal force when the 12 itself rotated.

さらに、図7に示すように、各噴射穴33a,34aの長手軸線Pとノズル本体32の長手軸線Lとがなす配置角度αは、同一且つ鋭角である。このような構成を採用することで、噴射領域S1と噴射領域S2との重なりを可能な限り少なくすることができ、効率の良い均一な噴射が可能となる。このような均一な噴射は、洗浄室3内の食器類の短時間洗浄を促進させる上で極めて有利である。さらに、ムラのない均一な噴射を可能にした結果、従来のように3本のノズル本体毎に異なる位置に噴射穴を設ける必要がないので、ノズル本体32の3本全てについて、部品の共通化を図ることができる。   Furthermore, as shown in FIG. 7, the arrangement angle α formed by the longitudinal axis P of each of the injection holes 33a and 34a and the longitudinal axis L of the nozzle body 32 is the same and acute. By adopting such a configuration, the overlap between the injection region S1 and the injection region S2 can be reduced as much as possible, and efficient and uniform injection is possible. Such uniform spraying is extremely advantageous in facilitating short-time cleaning of the dishes in the cleaning chamber 3. Furthermore, as a result of enabling uniform injection without unevenness, there is no need to provide injection holes at different positions for each of the three nozzle bodies as in the prior art. Can be achieved.

本発明は、前述した実施形態に限定されないことは言うまでもない。例えば、図8に示すように、噴射ノズルの他の例である下側洗浄ノズル14のステンレス製ノズル本体36には、噴射領域S1〜S5の重なりを可能な限り少なくするようにして5個の噴射穴37が並設されている。なお、各噴射穴37は、前述したクサビ形状の噴射穴33a,34aと同等である。また、噴射穴33a,34a,37は、噴射ノズルの他の例である上側濯ぎノズル13及び下側濯ぎノズル15に適用してもよい。また、各噴射穴37の大きさは同一であっても異なるものであってもよい。   It goes without saying that the present invention is not limited to the embodiment described above. For example, as shown in FIG. 8, in the stainless steel nozzle body 36 of the lower cleaning nozzle 14 which is another example of the injection nozzle, five overlaps of the injection regions S1 to S5 are minimized as much as possible. The injection hole 37 is arranged in parallel. Each injection hole 37 is equivalent to the aforementioned wedge-shaped injection holes 33a and 34a. The injection holes 33a, 34a, and 37 may be applied to the upper rinsing nozzle 13 and the lower rinsing nozzle 15 which are other examples of the injection nozzle. Moreover, the size of each injection hole 37 may be the same or different.

本発明に係る噴射ノズルが適用される食器洗浄機の一実施形態を示す斜視図である。It is a perspective view which shows one Embodiment of the dishwasher with which the injection nozzle which concerns on this invention is applied. 図1に示した食器洗浄機の断面図である。It is sectional drawing of the tableware washing machine shown in FIG. 本発明に係る噴射ノズルのノズル本体を示す斜視図である。It is a perspective view which shows the nozzle main body of the injection nozzle which concerns on this invention. ノズル本体の底面図である。It is a bottom view of a nozzle body. 図4のV−V線に沿う断面図である。It is sectional drawing which follows the VV line of FIG. ノズル本体の一部を切り欠いた部分断面図である。It is a fragmentary sectional view which notched a part of nozzle body. 本発明に係る噴射ノズルによる噴射領域を示す概略図である。It is the schematic which shows the injection area | region by the injection nozzle which concerns on this invention. 本発明に係る噴射ノズルの他の実施形態を示す底面図である。It is a bottom view which shows other embodiment of the injection nozzle which concerns on this invention. 従来に係る噴射ノズルの噴射領域を示す概略図である。It is the schematic which shows the injection area | region of the injection nozzle which concerns on the past. 従来に係る噴射ノズルの噴射状態を示す側面図である。It is a side view which shows the injection state of the injection nozzle which concerns on the past.

符号の説明Explanation of symbols

1…食器洗浄機、3…洗浄室、12…上側洗浄ノズル(噴射ノズル)、13…上側濯ぎノズル(噴射ノズル)、14…下側洗浄ノズル(噴射ノズル)、15…下側濯ぎノズル(噴射ノズル)、32,36…ノズル本体、33a,34a,37…噴射穴、L…ノズル本体の長手軸線、P…噴射穴の長手軸線、α…配置角度、W…開口幅。

DESCRIPTION OF SYMBOLS 1 ... Dishwasher, 3 ... Cleaning room, 12 ... Upper washing nozzle (injection nozzle), 13 ... Upper rinsing nozzle (injection nozzle), 14 ... Lower washing nozzle (injection nozzle), 15 ... Lower rinsing nozzle (injection) Nozzle), 32, 36 ... nozzle body, 33a, 34a, 37 ... injection hole, L ... longitudinal axis of nozzle body, P ... longitudinal axis of injection hole, α ... arrangement angle, W ... opening width.

Claims (3)

洗浄室内に配置されて、ノズル本体に設けられた噴射穴から水を噴射して回転する食器洗浄機用噴射ノズルにおいて、
前記ノズル本体の前記噴射穴の開口幅は、水平方向において、前記ノズル本体の根元側の端部から先端側の端部にゆくにつれて狭くなっていることを特徴とする食器洗浄機用噴射ノズル。
In the dishwasher spray nozzle that is arranged in the cleaning chamber and rotates by spraying water from the spray hole provided in the nozzle body,
Opening width of the ejection hole of the nozzle body, in the horizontal direction, dishwashing injection nozzle, characterized in that narrows as yuku the end of the distal end side from the root side of the end portion of said nozzle body.
前記噴射穴は、クサビ状に形成されていることを特徴とする請求項1記載の食器洗浄機用噴射ノズル。   The spray nozzle for a dishwasher according to claim 1, wherein the spray hole is formed in a wedge shape. 前記ノズル本体には、複数の噴射穴が設けられ、前記各噴射穴の長手軸線と前記ノズル本体の長手軸線とのなす配置角度は、同一且つ鋭角であることを特徴とする請求項1又は2記載の食器洗浄機用噴射ノズル。
The nozzle body is provided with a plurality of injection holes, and the arrangement angle formed between the longitudinal axis of each of the injection holes and the longitudinal axis of the nozzle body is the same and acute. The spray nozzle for dishwashers as described.
JP2005125687A 2005-04-22 2005-04-22 Spray nozzle for dishwasher Expired - Fee Related JP4614817B2 (en)

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0169464U (en) * 1987-10-29 1989-05-09
JPH0667372B2 (en) * 1988-05-02 1994-08-31 三菱電機株式会社 Dishwasher
JP3147404B2 (en) * 1991-05-16 2001-03-19 松下電器産業株式会社 Dishwasher

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