JP2005199193A - Liquid jet apparatus - Google Patents

Liquid jet apparatus Download PDF

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Publication number
JP2005199193A
JP2005199193A JP2004009091A JP2004009091A JP2005199193A JP 2005199193 A JP2005199193 A JP 2005199193A JP 2004009091 A JP2004009091 A JP 2004009091A JP 2004009091 A JP2004009091 A JP 2004009091A JP 2005199193 A JP2005199193 A JP 2005199193A
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nozzle
liquid
diffusion
oscillation
flow path
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Japanese (ja)
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Ryoji Wada
良治 和田
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Jidosha Denki Kogyo KK
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Jidosha Denki Kogyo KK
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Priority to JP2004009091A priority Critical patent/JP2005199193A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/08—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape of pulsating nature, e.g. delivering liquid in successive separate quantities ; Fluidic oscillators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
    • B60S1/48—Liquid supply therefor
    • B60S1/52—Arrangement of nozzles; Liquid spreading means

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid jet apparatus which has good appearance and in which the jetting direction of a diffusion nozzle is reliably and easily changed by hand. <P>SOLUTION: A liquid spray apparatus 10 is provided with: a self-oscillation type diffusion nozzle 20; and an apparatus main body 11 having a spherically recessed attachment part 13 formed to engage with a spherical body part 25 of the diffusion nozzle 20 freely slidably. The diffusion nozzle 20 is constituted of: an oscillation nozzle body 21 having the spherical body part 25 and an exposed liquid flow path 24; and a cover nozzle body 22 for covering the liquid flow path 24 of the oscillation nozzle body 21. A control knob 29 for controlling the jetting direction of a jetting port 23 is provided on the tip of the oscillation nozzle body 21. A nozzle cover 17 for covering a liquid jetting port 12 is provided to the apparatus main body 11 and an opening window 17c is provided at a position opposed to the jetting port 23 of the diffusion nozzle 20 on the nozzle cover 17. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、例えば、自動車のフロントガラスに洗浄液等の液体を拡散させて噴射する自励発振型の拡散ノズルを備えた液体噴射装置に関する。   The present invention relates to a liquid ejecting apparatus including a self-oscillation type diffusion nozzle that diffuses and ejects a liquid such as a cleaning liquid on a windshield of an automobile, for example.

この種の液体噴射装置として、図７及び図８に示すものがある（例えば、特許文献１参照）。この液体噴射装置１は、図７及び図８に示すように、内部に先端の噴口３から洗浄液Ｓを振動させて拡散させるフィードバック流路４ａ，４ｂ等の液体用流路４を有すると共に、基端部に該噴口３の噴射方向を可変させる球体部５を有した拡散ノズル２と、この拡散ノズル２の球体部５を摺動自在に嵌合する球面凹状取付部８を液体噴射口７側に形成した装置本体６とを備えている。   As this type of liquid ejecting apparatus, there is one shown in FIGS. 7 and 8 (see, for example, Patent Document 1). As shown in FIGS. 7 and 8, the liquid ejecting apparatus 1 has a liquid flow path 4 such as feedback flow paths 4a and 4b for oscillating and diffusing the cleaning liquid S from the nozzle hole 3 at the tip. A diffusion nozzle 2 having a sphere 5 for changing the injection direction of the injection nozzle 3 at the end, and a spherical concave mounting portion 8 for slidably fitting the sphere 5 of the diffusion nozzle 2 are provided on the liquid injection nozzle 7 side. The apparatus main body 6 is formed.

図８に示すように、拡散ノズル２は、基端部に半割り状の球体部５ａ及び露出した液体用流路４を有する発振ノズル体２ａと、基端部に半割り状の球体部５ｂを有すると共に、発振ノズル体２ａの露出した液体用流路４を覆う蓋ノズル体２ｂとで構成されている。これら発振ノズル体２ａと蓋ノズル体２ｂは溶着等で結合され、合体して球状に成った球体部５ａを装置本体６の球面凹状取付部８に摺動自在に嵌合してある。これにより、装置本体６に設けられた液体供給流路９内に圧送された洗浄液Ｓは、拡散ノズル２の内部の液体用流路４を噴流することで自励発振され、先端の噴口３から横方向に拡散されて噴射されるようになっている。   As shown in FIG. 8, the diffusing nozzle 2 includes a oscillating nozzle body 2a having a halved spherical portion 5a and an exposed liquid channel 4 at the base end portion, and a halved spherical portion 5b at the base end portion. And a lid nozzle body 2b that covers the exposed liquid flow path 4 of the oscillation nozzle body 2a. The oscillating nozzle body 2a and the lid nozzle body 2b are joined by welding or the like, and the spherical body portion 5a formed into a spherical shape by being combined is slidably fitted to the spherical concave mounting portion 8 of the apparatus body 6. As a result, the cleaning liquid S pumped into the liquid supply passage 9 provided in the apparatus main body 6 is self-oscillated by jetting through the liquid passage 4 inside the diffusion nozzle 2, and is emitted from the tip nozzle 3. It is diffused in the lateral direction and sprayed.

また、図７に示すように、装置本体６の液体噴射口７内に露出した拡散ノズル２の先端を摘んで該拡散ノズル２の噴射軸Ｇを上下方向、或いは、左右方向に移動させることにより、拡散ノズル２から噴射される洗浄液Ｓの噴射方向を可変させることができるようになっている。   Further, as shown in FIG. 7, the tip of the diffusion nozzle 2 exposed in the liquid injection port 7 of the apparatus body 6 is grasped and the injection axis G of the diffusion nozzle 2 is moved in the vertical direction or the horizontal direction. The spraying direction of the cleaning liquid S sprayed from the diffusion nozzle 2 can be varied.

特開２００２−６７８８７号公報JP 2002-67887 A

特公昭５９−９３７８号公報Japanese Patent Publication No.59-9378

しかしながら、前記従来の液体噴射装置１では、拡散ノズル２の噴射方向を可変させる球体部５を二つ割りに形成して溶着等により合体しているため、この合体の精度により球体部５の球面に段差等が発生し易く、該球体部５を装置本体６の球面凹状取付部８に対してスムーズに摺動させて噴射方向を変えてその位置調整することができない場合があり、また、拡散ノズル２を手動により適正な位置に調整する作業が煩雑であった。さらに、拡散ノズル２の噴射方向を可変させるために液体噴射口７を大きく形成してあるため、見栄えが悪く、液体噴射口７に塵埃等が入った場合には、拡散ノズル２の噴口３が目詰まりして洗浄液Ｓを噴射できなくなるおそれがあった。   However, in the conventional liquid ejecting apparatus 1, the spherical part 5 for changing the spraying direction of the diffusion nozzle 2 is formed in two and joined by welding or the like. And the position of the spherical body portion 5 cannot be adjusted by smoothly sliding the spherical body portion 5 with respect to the spherical concave mounting portion 8 of the apparatus main body 6 and changing the injection direction. The operation of manually adjusting the position to an appropriate position was complicated. Furthermore, since the liquid injection port 7 is formed large in order to change the injection direction of the diffusion nozzle 2, it does not look good, and when dust or the like enters the liquid injection port 7, the injection port 3 of the diffusion nozzle 2 There is a possibility that the cleaning liquid S cannot be sprayed due to clogging.

そこで、本発明は、前記した課題を解決すべくなされたものであり、拡散ノズルの噴射方向を手動で確実かつ容易に可変することができると共に、見栄えの良い液体噴射装置を提供することを目的とする。   Accordingly, the present invention has been made to solve the above-described problems, and an object thereof is to provide a liquid ejecting apparatus that can change the ejection direction of a diffusion nozzle manually and surely and easily and has a good appearance. And

請求項１の発明は、内部に先端の噴口から液体を振動させて拡散させる液体用流路を有すると共に、基端部に該噴口の噴射方向を可変させる球体部を有した拡散ノズルと、この拡散ノズルの球体部を摺動自在に嵌合する球面凹状取付部を形成した装置本体とを備えた液体噴射装置において、前記拡散ノズルを、前記球体部及び液体用流路を有する発振ノズル体と、この発振ノズル体の液体用流路を覆う蓋ノズル体とで構成し、前記発振ノズル体の先端に前記噴口の噴射方向を調整する調整用つまみを設けたことを特徴とする。   The invention according to claim 1 includes a diffusion nozzle having a liquid flow passage for oscillating and diffusing liquid from the tip nozzle hole at the inside, and a sphere portion for changing the injection direction of the nozzle nozzle at the base end portion, and In a liquid ejecting apparatus including an apparatus main body formed with a spherical concave mounting portion that slidably fits a sphere portion of a diffusion nozzle, the oscillating nozzle body including the sphere portion and a liquid channel, And a lid nozzle body that covers the liquid flow path of the oscillation nozzle body, and an adjustment knob for adjusting the injection direction of the nozzle is provided at the tip of the oscillation nozzle body.

請求項２の発明は、内部に先端の噴口から液体を振動させて拡散させる液体用流路を有すると共に、基端部に該噴口の噴射方向を可変させる球体部を有した拡散ノズルと、この拡散ノズルの球体部を摺動自在に嵌合する球面凹状取付部を形成した装置本体とを備えた液体噴射装置において、前記装置本体に該装置本体の液体噴射口を覆うノズルカバーを設け、このノズルカバーの前記拡散ノズルの噴口に対向する位置に開口窓を設けたことを特徴とする。   According to a second aspect of the present invention, there is provided a diffusion nozzle having a liquid flow channel for oscillating and diffusing the liquid from the nozzle hole at the front end, and a spherical body part for changing the injection direction of the nozzle hole at the base end part. In a liquid ejecting apparatus comprising a device main body formed with a spherical concave mounting portion that slidably fits a spherical portion of a diffusion nozzle, a nozzle cover that covers the liquid ejecting port of the device main body is provided in the device main body, An opening window is provided at a position of the nozzle cover facing the nozzle hole of the diffusion nozzle.

請求項３の発明は、内部に先端の噴口から液体を振動させて拡散させる液体用流路を有すると共に、基端部に該噴口の噴射方向を可変させる球体部を有した拡散ノズルと、この拡散ノズルの球体部を摺動自在に嵌合する球面凹状取付部を形成した装置本体とを備えた液体噴射装置において、前記拡散ノズルを、前記球体部及び液体用流路を有する発振ノズル体と、この発振ノズル体の液体用流路を覆う蓋ノズル体とで構成し、前記発振ノズル体の先端に前記噴口の噴射方向を調整する調整用つまみを設ける一方、前記装置本体に該装置本体の液体噴射口を覆うノズルカバーを設け、このノズルカバーの前記拡散ノズルの噴口に対向する位置に開口窓を設けたことを特徴とする。   According to a third aspect of the present invention, there is provided a diffusion nozzle having a liquid flow channel for oscillating and diffusing liquid from the tip nozzle hole at the inside, and a sphere part for changing the injection direction of the nozzle nozzle at the base end part, In a liquid ejecting apparatus including an apparatus main body formed with a spherical concave mounting portion that slidably fits a sphere portion of a diffusion nozzle, the oscillating nozzle body including the sphere portion and a liquid channel, And a lid nozzle body that covers the liquid flow path of the oscillation nozzle body, and an adjustment knob for adjusting the injection direction of the nozzle is provided at the tip of the oscillation nozzle body, while the apparatus body A nozzle cover that covers the liquid ejection port is provided, and an opening window is provided at a position of the nozzle cover that faces the ejection port of the diffusion nozzle.

請求項４の発明は、請求項２または３に記載の液体噴射装置であって、前記装置本体は合成樹脂製であり、前記ノズルカバーはこの装置本体に一体突出形成されているとともに、このノズルカバーは、基端に形成されたヒンジ部と先端にＬ字状に形成された係止部とを備え、前記液体噴射口の上端縁には、前記ノズルカバーをヒンジ部を回動支点として折り曲げたとき前記係止部が係止される係合部が形成されていることを特徴とする。   According to a fourth aspect of the present invention, in the liquid ejecting apparatus according to the second or third aspect, the apparatus main body is made of a synthetic resin, and the nozzle cover is formed integrally with the apparatus main body. The cover includes a hinge portion formed at the base end and an engaging portion formed in an L shape at the tip end, and the nozzle cover is bent at the upper end edge of the liquid ejection port with the hinge portion serving as a rotation fulcrum. An engaging portion is formed to lock the engaging portion when the contact is formed.

以上説明したように、請求項１の発明によれば、拡散ノズルの噴射方向を可変させる球体部を該拡散ノズルの一部を構成する発振ノズル体の基端部に一体形成したので、球体部を装置本体の球面凹状取付部に対して常にスムーズに摺動させることができ、拡散ノズルの噴射方向を確実かつ容易に可変させることができる。また、発振ノズル体の先端の調整用つまみの操作により拡散ノズルを手動により適正な位置に確実かつ容易に調整することができる。   As described above, according to the first aspect of the present invention, since the spherical portion that changes the injection direction of the diffusion nozzle is integrally formed with the base end portion of the oscillation nozzle body that constitutes a part of the diffusion nozzle, Can always be slid smoothly with respect to the spherical concave mounting portion of the apparatus main body, and the spraying direction of the diffusion nozzle can be changed reliably and easily. In addition, the diffusion nozzle can be manually and reliably adjusted to an appropriate position by operating the adjustment knob at the tip of the oscillation nozzle body.

請求項２の発明によれば、装置本体に液体噴射口を覆うノズルカバーを設け、このノズルカバーの拡散ノズルの噴口に対向する位置に開口窓を設けたので、装置本体の見栄えを向上させることができると共に、液体噴射口に塵埃等が入り難くなり、拡散ノズルの噴口の目詰まりを確実に防止して洗浄液を常に噴射させることができる。   According to the invention of claim 2, since the nozzle cover for covering the liquid jet port is provided in the apparatus main body, and the opening window is provided at the position facing the nozzle nozzle of the diffusion nozzle of the nozzle cover, the appearance of the apparatus main body is improved. In addition, it is difficult for dust or the like to enter the liquid injection port, and it is possible to reliably prevent clogging of the injection port of the diffusion nozzle and to always spray the cleaning liquid.

請求項３の発明によれば、拡散ノズルの噴射方向を可変させる球体部を該拡散ノズルの一部を構成する発振ノズル体の基端部に一体形成したので、球体部を装置本体の球面凹状取付部に対して常にスムーズに摺動させることができ、拡散ノズルの噴射方向を確実かつ容易に可変させることができる。また、発振ノズル体の先端の調整用つまみの操作により拡散ノズルを手動により適正な位置に確実かつ容易に調整することができる。さらに、装置本体に液体噴射口を覆うノズルカバーを設け、このノズルカバーの拡散ノズルの噴口に対向する位置に開口窓を設けたので、装置本体の見栄えを向上させることができると共に、液体噴射口に塵埃等が入り難くなり、拡散ノズルの噴口の目詰まりを確実に防止して洗浄液を常に噴射させることができる。   According to the third aspect of the present invention, since the spherical portion for changing the injection direction of the diffusion nozzle is integrally formed with the base end portion of the oscillation nozzle body constituting a part of the diffusion nozzle, the spherical portion is formed in the spherical concave shape of the apparatus main body. It can always slide smoothly with respect to the mounting portion, and the injection direction of the diffusion nozzle can be changed reliably and easily. In addition, the diffusion nozzle can be manually and reliably adjusted to an appropriate position by operating the adjustment knob at the tip of the oscillation nozzle body. Furthermore, since the apparatus body is provided with a nozzle cover that covers the liquid ejection port, and the opening window is provided at a position facing the diffusion nozzle of the nozzle cover, the appearance of the apparatus body can be improved, and the liquid ejection port It becomes difficult for dust and the like to enter the nozzle, and the nozzle of the diffusion nozzle can be reliably prevented from being clogged and the cleaning liquid can be always sprayed.

請求項４の発明によれば、ノズルカバーは、基端に形成されたヒンジ部と先端にＬ字状に形成された係止部とを備え、装置本体の液体噴射口の上端縁には、ノズルカバーをヒンジ部を回動支点として折り曲げたとき係止部が係止される係合部が形成されているので、
ノズルカバーを容易に装置本体の液体噴射口に装着することができる。 According to the invention of claim 4, the nozzle cover includes a hinge portion formed at the base end and a locking portion formed in an L shape at the tip, and the upper end edge of the liquid jet port of the apparatus main body includes Since the engaging part is formed so that the engaging part is locked when the nozzle cover is bent with the hinge part as a pivot point,
The nozzle cover can be easily attached to the liquid ejection port of the apparatus main body.

以下、本発明の実施例１を図面に基づいて説明する。   Embodiment 1 of the present invention will be described below with reference to the drawings.

図１は本発明の実施例１の液体噴射装置を車輌のカウルパネルに取り付けた状態を一部断面で示す側面図、図２は同液体噴射装置の正面図、図３は同液体噴射装置の断面図、図４は同液体噴射装置に用いられる拡散ノズルの分解斜視図、図５は同拡散ノズルの斜視図、図６は同拡散ノズルの下部を構成する発振ノズル体の平面図である。   1 is a side view showing a partial cross-sectional view of a liquid ejecting apparatus according to a first embodiment of the present invention attached to a cowl panel of a vehicle, FIG. 2 is a front view of the liquid ejecting apparatus, and FIG. FIG. 4 is an exploded perspective view of a diffusion nozzle used in the liquid ejecting apparatus, FIG. 5 is a perspective view of the diffusion nozzle, and FIG. 6 is a plan view of an oscillation nozzle body constituting a lower portion of the diffusion nozzle.

図１〜図３に示すように、液体噴射装置１０は、内部に先端の噴口２３から洗浄液（液体）Ｓを振動させて拡散させる液体用流路２４を有すると共に、基端部に該噴口２３の噴射方向を可変させる球体部２５を有した合成樹脂製の拡散ノズル２０と、この拡散ノズル２０の球体部２５を摺動自在に嵌合する球面凹状取付部１３を液体噴射口１２側に形成した合成樹脂製のハウジング（装置本体）１１とを備えている。   As shown in FIGS. 1 to 3, the liquid ejecting apparatus 10 has a liquid flow path 24 that oscillates and diffuses a cleaning liquid (liquid) S from a distal end nozzle hole 23, and the nozzle hole 23 at a base end portion. A diffusion nozzle 20 made of a synthetic resin having a sphere portion 25 for changing the injection direction of the liquid and a spherical concave mounting portion 13 for slidably fitting the sphere portion 25 of the diffusion nozzle 20 are formed on the liquid injection port 12 side. And a synthetic resin housing (device main body) 11.

図４，図５に示すように、拡散ノズル２０は、基端部に球体部２５及び露出した液体用流路２４を有する合成樹脂製の発振ノズル体２１と、この発振ノズル体２１の上面側に露出した液体用流路２４を覆う合成樹脂製で板状の蓋ノズル体２２とで構成されている。   As shown in FIGS. 4 and 5, the diffusion nozzle 20 includes a synthetic resin oscillation nozzle body 21 having a spherical portion 25 and an exposed liquid passage 24 at the base end portion, and an upper surface side of the oscillation nozzle body 21. And a plate-like lid nozzle body 22 made of synthetic resin and covering the liquid flow path 24 exposed to the surface.

発振ノズル体２１の液体用流路２４は、球体部２５から発振ノズル体２１の基部に形成され、先端が主ノズル２６ａに成っている供給口２６と、主ノズル２６ａと噴口２３との間に形成された内部流路２７と、噴口２３より主ノズル２６ａに洗浄液Ｓをフィードバックさせる左右一対のフィードバック流路２８ａ，２８ｂとを備えている。また、発振ノズル体２１の先端の下部には洗浄液Ｓの噴射方向（噴口２３の噴射方向）を調整する調整用つまみ２９を一体突出形成してある。   The liquid flow path 24 of the oscillation nozzle body 21 is formed from the spherical body portion 25 to the base portion of the oscillation nozzle body 21, and between the main nozzle 26 a and the injection nozzle 23 between the supply port 26 whose tip is the main nozzle 26 a. The formed internal flow path 27 and a pair of left and right feedback flow paths 28a and 28b for feeding back the cleaning liquid S to the main nozzle 26a from the nozzle 23 are provided. An adjustment knob 29 that adjusts the spraying direction of the cleaning liquid S (the spraying direction of the nozzle 23) is integrally formed at the lower part of the tip of the oscillation nozzle body 21.

図１及び図３に示すように、ハウジング１１は、先端より基部の内部にかけて液体噴射口１２と球面凹状取付部１３及び液体供給流路１４を形成したノズル取付部１５と、このノズル取付部１５の底面１５ａの中央より下方に円筒状に一体突出形成されたハウジング固定部１６とで側面略Ｌ字状に形成してある。また、ハウジング１１のノズル取付部１５の底面１５ａの側部には、四角筒状の液体噴射口１２を覆う矩形板状のノズルカバー１７を一体突出形成してある。このノズルカバー１７は基端に形成されたヒンジ部１７ａを回動支点として上方に折り曲げられるようになっており、この折り曲げ時に該ノズルカバー１７の先端にＬ字状に形成された係止部（凸部）１７ｂがハウジング１１の液体噴射口１２の上端縁に形成された係合部（凹部）１５ｂに係止されるようになっている。また、このノズルカバー１７の拡散ノズル２０の噴口２３に対向する位置には、矩形の開口窓１７ｃを形成してある。さらに、図１〜図３に示すように、拡散ノズル２０の噴口２３の噴射方向の位置を調整するために該拡散ノズル２０の先端部を上下方向或いは左右方向に所定の角度で回動できるように、ハウジング１１の液体噴射口１２は四角筒状になっている。即ち、この四角筒状の液体噴射口１２は、拡散ノズル２０の先端部を上下方向或いは左右方向に回動できるように十分な調整逃げ空間を有している。   As shown in FIGS. 1 and 3, the housing 11 includes a nozzle mounting portion 15 in which a liquid injection port 12, a spherical concave mounting portion 13 and a liquid supply channel 14 are formed from the tip to the inside of the base, and the nozzle mounting portion 15. It is formed in a substantially L-shaped side surface with a housing fixing portion 16 formed integrally and projecting downward from the center of the bottom surface 15a. In addition, a rectangular plate-shaped nozzle cover 17 that covers the square cylindrical liquid injection port 12 is integrally formed on the side of the bottom surface 15 a of the nozzle mounting portion 15 of the housing 11. The nozzle cover 17 is bent upward with a hinge portion 17a formed at the base end as a rotation fulcrum, and a locking portion (L-shaped) is formed at the tip of the nozzle cover 17 at the time of bending. A convex portion 17 b is engaged with an engaging portion (concave portion) 15 b formed at the upper end edge of the liquid ejection port 12 of the housing 11. Further, a rectangular opening window 17c is formed at a position of the nozzle cover 17 facing the nozzle hole 23 of the diffusion nozzle 20. Further, as shown in FIGS. 1 to 3, in order to adjust the position of the injection nozzle 23 in the injection direction of the diffusion nozzle 20, the tip of the diffusion nozzle 20 can be rotated at a predetermined angle in the vertical direction or the horizontal direction. In addition, the liquid injection port 12 of the housing 11 has a rectangular tube shape. That is, the rectangular cylindrical liquid injection port 12 has a sufficient adjustment relief space so that the tip of the diffusion nozzle 20 can be rotated in the vertical direction or the horizontal direction.

図１及び図３に示すように、ハウジング１１の円筒状のハウジング固定部１６の外周には、カウルカバー（被取付体）４０の取付孔４１にロックされる一対の係止爪（係止部）１８，１８を一体突出形成してある。また、円筒状のハウジング固定部１６の下端開口部１６ａ内にはニップル１９を嵌合してある。このニップル１９の上部の円環状の突起部１９ａは逆止弁３０により開閉されるようになっている。この逆止弁３０は、円環状の突起部１９ａに当接、離反されるゴム製で円盤皿状のパッキン３１と、このパッキン３１を保持する合成樹脂製で略円筒状のガイド３２と、このガイド３２とノズル取付部１５の底面１５ａとの間に介在されてパッキン３１を円環状の突起部１９ａに付勢させるコイルスプリング（付勢手段）３３とで構成されている。さらに、ニップル１９の先端部には供給パイプ４２を連結してある。この供給パイプ４２は図示しない洗浄液タンク及び供給ポンプに接続されて、洗浄液Ｓを洗浄液タンクからハウジング１１の液体供給流路１４に圧送するようになっている。   As shown in FIGS. 1 and 3, on the outer periphery of the cylindrical housing fixing portion 16 of the housing 11, a pair of locking claws (locking portions) locked in a mounting hole 41 of a cowl cover (attached body) 40. ) 18 and 18 are integrally formed. A nipple 19 is fitted in the lower end opening 16 a of the cylindrical housing fixing portion 16. An annular projection 19 a at the top of the nipple 19 is opened and closed by a check valve 30. The check valve 30 is made of a rubber disc-shaped packing 31 that is brought into contact with and separated from the annular protrusion 19a, a synthetic resin-made substantially cylindrical guide 32 that holds the packing 31, and The coil spring (biasing means) 33 is interposed between the guide 32 and the bottom surface 15a of the nozzle mounting portion 15 and biases the packing 31 to the annular projection 19a. Further, a supply pipe 42 is connected to the tip of the nipple 19. The supply pipe 42 is connected to a cleaning liquid tank and a supply pump (not shown) so as to pressure-feed the cleaning liquid S from the cleaning liquid tank to the liquid supply flow path 14 of the housing 11.

以上実施例１の液体噴射装置１０によれば、拡散ノズル２０の噴射方向を可変させる球体部２５を該拡散ノズル２０の下部を構成する発振ノズル体２１の基端部に一体形成したことにより、該球体部２５をハウジング１１の球面凹状取付部１３に対して常にスムーズに摺動させることができ、拡散ノズル２０の噴射方向を確実かつ容易に可変させることができる。   As described above, according to the liquid ejecting apparatus 10 of the first embodiment, the spherical portion 25 that changes the ejection direction of the diffusion nozzle 20 is formed integrally with the base end portion of the oscillation nozzle body 21 that forms the lower portion of the diffusion nozzle 20. The spherical body portion 25 can be always slid smoothly with respect to the spherical concave mounting portion 13 of the housing 11, and the injection direction of the diffusion nozzle 20 can be changed reliably and easily.

また、発振ノズル体２１の先端に突出した調整用つまみ２９の操作により拡散ノズル２０の噴口２３を手動により上下方向、或いは左右方向に移動させて適正な位置に確実かつ容易に調整することができる。   Further, the nozzle 23 of the diffusion nozzle 20 can be manually moved in the vertical direction or the horizontal direction by the operation of the adjustment knob 29 protruding from the tip of the oscillation nozzle body 21 and can be reliably and easily adjusted to an appropriate position. .

さらに、ハウジング１１のノズル取付部１５の底面１５ａの側部に液体噴射口１２を覆うノズルカバー１７を一体形成し、このノズルカバー１７をヒンジ部１７ａを回動支点として折り曲げて拡散ノズル２０の噴口２３の周りを覆ったことにより、ハウジング１１の外観の見栄えを向上させることができると共に、液体噴射口１２に塵埃等が入り難くなり、拡散ノズル２０の噴口２３の目詰まりを確実に防止して洗浄液Ｓを常に良好な状態で噴射させることができるとともに、ノズルカバー１７を容易にハウジング１１の液体噴射口１２に装着することができる。   Further, a nozzle cover 17 that covers the liquid injection port 12 is integrally formed on the side surface of the bottom surface 15a of the nozzle mounting portion 15 of the housing 11, and the nozzle cover 17 is bent with the hinge portion 17a as a rotation fulcrum to eject the nozzle hole of the diffusion nozzle 20. By covering the periphery of the nozzle 23, the appearance of the housing 11 can be improved, dust and the like are less likely to enter the liquid nozzle 12, and the nozzle 23 of the diffusion nozzle 20 is reliably prevented from being clogged. The cleaning liquid S can always be ejected in a good state, and the nozzle cover 17 can be easily attached to the liquid ejection port 12 of the housing 11.

この洗浄液Ｓの噴射の際に、該洗浄液Ｓは供給ポンプによって洗浄液タンクからニップル１９の内部に圧送され、洗浄液Ｓが所定の圧力になるとコイルスプリング３３の付勢力に打勝ってガイド３２とパッキン３１が図３の上方に移動し、即ち逆止弁３０が開かれ、洗浄液Ｓはハウジング１１の液体供給流路１４に圧送され、図６に示すように、拡散ノズル２０の供給口２６から浸入し、主ノズル２６ａから噴射され、内部流路２７の側壁２７ａに沿って付着噴流となり、スロート２３ａを通って噴口２３の側壁２３ｂに向かい外部に噴射される。そして、上記付着噴流の一部が側壁２７ａにある制御ポート２８ｃに入り込んで、フィードバック流路２８ａから制御ノズル２８ｄに送られ、制御流となる。   During the injection of the cleaning liquid S, the cleaning liquid S is pumped from the cleaning liquid tank into the nipple 19 by a supply pump. When the cleaning liquid S reaches a predetermined pressure, the biasing force of the coil spring 33 is overcome and the guide 32 and the packing 31 are overcome. 3 moves upward, that is, the check valve 30 is opened, and the cleaning liquid S is pumped to the liquid supply flow path 14 of the housing 11 and enters the supply port 26 of the diffusion nozzle 20 as shown in FIG. Injected from the main nozzle 26a, becomes an adhering jet along the side wall 27a of the internal flow path 27, and is injected outside through the throat 23a toward the side wall 23b of the nozzle 23. A part of the adhering jet flows into the control port 28c in the side wall 27a and is sent from the feedback flow path 28a to the control nozzle 28d to become a control flow.

この制御ノズル２８ｄからの制御流によって、主噴流は内部流路２７の側壁２７ａを離れて反対側の側壁２７ｂに付着して付着流となる。この付着流の一部によるフィードバック流路２８ｂからの制御流によって、主噴流が上記側壁２７ａに切り換えられ、この繰り返しにより、洗浄液Ｓが自励発振するものである。このようにして、拡散ノズル２０によって自動車のフロントガラス等に洗浄液Ｓが均一に拡散されて散布される。   Due to the control flow from the control nozzle 28d, the main jet flow leaves the side wall 27a of the internal flow path 27 and adheres to the opposite side wall 27b to become an adhering flow. The main jet flow is switched to the side wall 27a by the control flow from the feedback flow path 28b by a part of the attached flow, and the cleaning liquid S self-oscillates by repeating this. In this way, the cleaning liquid S is uniformly diffused and dispersed on the windshield of the automobile by the diffusion nozzle 20.

尚、前記実施例１によれば、拡散ノズルの調整用つまみを手動により操作するようにしたが、例えば、自動車の運転席からリモートコントール装置により方向変更装置等を介して調整用つまみを自動で操作するようにしても良い。   According to the first embodiment, the adjustment knob of the diffusion nozzle is manually operated. However, for example, the adjustment knob is automatically operated from the driver's seat of the automobile by the remote control device via the direction changing device. You may make it operate.

本発明の実施例１の液体噴射装置を車輌のカウルパネルに取り付けた状態を一部断面で示す側面図である。It is a side view which shows the state which attached the liquid ejecting apparatus of Example 1 of this invention to the cowl panel of the vehicle in a partial cross section. 上記液体噴射装置の正面図である。It is a front view of the liquid ejecting apparatus. 上記液体噴射装置の断面図である。It is sectional drawing of the said liquid injection apparatus. 上記液体噴射装置に用いられる拡散ノズルの分解斜視図である。It is a disassembled perspective view of the diffusion nozzle used for the liquid ejecting apparatus. 上記拡散ノズルの斜視図である。It is a perspective view of the said diffusion nozzle. 上記拡散ノズルの下部を構成する発振ノズル体の平面図である。It is a top view of the oscillation nozzle body which comprises the lower part of the said diffusion nozzle. 従来例の液体噴射装置を一部断面で示す側面図である。It is a side view which shows the liquid injection apparatus of a prior art example in a partial cross section. 上記従来例の液体噴射装置に用いられる拡散ノズルの分解斜視図である。It is a disassembled perspective view of the diffusion nozzle used for the liquid ejecting apparatus of the conventional example.

符号の説明Explanation of symbols

１０ 液体噴射装置
１１ ハウジング（装置本体）
１２ 液体噴射口
１３ 球面凹状取付部
１５ｂ 係合部
１７ ノズルカバー
１７ａ ヒンジ部
１７ｂ 係止部
１７ｃ 開口窓
２０ 拡散ノズル
２１ 発振ノズル体
２２ 蓋ノズル体
２３ 噴口
２４ 液体用流路
２５ 球体部
２９ 調整用つまみ
Ｓ 洗浄液（液体） 10 Liquid ejecting device 11 Housing (device main body)
DESCRIPTION OF SYMBOLS 12 Liquid injection port 13 Spherical concave attachment part 15b Engagement part 17 Nozzle cover 17a Hinge part 17b Locking part 17c Opening window 20 Diffusion nozzle 21 Oscillation nozzle body 22 Cover nozzle body 23 Injection hole 24 Liquid flow path 25 Spherical part 29 Adjustment Knob S Cleaning liquid (liquid)

Claims (4)

内部に先端の噴口から液体を振動させて拡散させる液体用流路を有すると共に、基端部に該噴口の噴射方向を可変させる球体部を有した拡散ノズルと、この拡散ノズルの球体部を摺動自在に嵌合する球面凹状取付部を形成した装置本体とを備えた液体噴射装置において、
前記拡散ノズルを、前記球体部及び液体用流路を有する発振ノズル体と、この発振ノズル体の液体用流路を覆う蓋ノズル体とで構成し、前記発振ノズル体の先端に前記噴口の噴射方向を調整する調整用つまみを設けたことを特徴とする液体噴射装置。 A diffusion nozzle having a liquid flow path for oscillating and diffusing the liquid from the nozzle hole at the front end and having a sphere part for changing the injection direction of the nozzle hole at the base end part, and sliding the sphere part of the diffusion nozzle. In a liquid ejecting apparatus comprising a device main body formed with a spherical concave mounting portion that fits freely,
The diffusion nozzle is composed of an oscillation nozzle body having the spherical portion and a liquid flow path, and a lid nozzle body that covers the liquid flow path of the oscillation nozzle body, and the injection of the nozzle hole at the tip of the oscillation nozzle body A liquid ejecting apparatus comprising an adjustment knob for adjusting a direction. 内部に先端の噴口から液体を振動させて拡散させる液体用流路を有すると共に、基端部に該噴口の噴射方向を可変させる球体部を有した拡散ノズルと、この拡散ノズルの球体部を摺動自在に嵌合する球面凹状取付部を形成した装置本体とを備えた液体噴射装置において、
前記装置本体に該装置本体の液体噴射口を覆うノズルカバーを設け、このノズルカバーの前記拡散ノズルの噴口に対向する位置に開口窓を設けたことを特徴とする液体噴射装置。 A diffusion nozzle having a liquid flow path for oscillating and diffusing the liquid from the nozzle hole at the front end and having a sphere part for changing the injection direction of the nozzle hole at the base end part, and sliding the sphere part of the diffusion nozzle. In a liquid ejecting apparatus comprising a device main body formed with a spherical concave mounting portion that fits freely,
A liquid ejecting apparatus comprising: a nozzle cover that covers a liquid ejection port of the apparatus body; and an opening window provided at a position of the nozzle cover facing the ejection port of the diffusion nozzle. 内部に先端の噴口から液体を振動させて拡散させる液体用流路を有すると共に、基端部に該噴口の噴射方向を可変させる球体部を有した拡散ノズルと、この拡散ノズルの球体部を摺動自在に嵌合する球面凹状取付部を形成した装置本体とを備えた液体噴射装置において、
前記拡散ノズルを、前記球体部及び液体用流路を有する発振ノズル体と、この発振ノズル体の液体用流路を覆う蓋ノズル体とで構成し、前記発振ノズル体の先端に前記噴口の噴射方向を調整する調整用つまみを設ける一方、前記装置本体に該装置本体の液体噴射口を覆うノズルカバーを設け、このノズルカバーの前記拡散ノズルの噴口に対向する位置に開口窓を設けたことを特徴とする液体噴射装置。 A diffusion nozzle having a liquid flow path for oscillating and diffusing the liquid from the nozzle hole at the front end and having a sphere part for changing the injection direction of the nozzle hole at the base end part, and sliding the sphere part of the diffusion nozzle. In a liquid ejecting apparatus comprising a device main body formed with a spherical concave mounting portion that fits freely,
The diffusion nozzle is composed of an oscillation nozzle body having the spherical portion and a liquid flow path, and a lid nozzle body that covers the liquid flow path of the oscillation nozzle body, and the injection of the nozzle hole at the tip of the oscillation nozzle body While providing an adjustment knob for adjusting the direction, a nozzle cover for covering the liquid injection port of the apparatus main body is provided on the apparatus main body, and an opening window is provided at a position facing the injection nozzle of the diffusion nozzle of the nozzle cover. A liquid ejecting apparatus. 請求項２または３に記載の液体噴射装置であって、
前記装置本体は合成樹脂製であり、前記ノズルカバーはこの装置本体に一体突出形成されているとともに、このノズルカバーは、基端に形成されたヒンジ部と先端にＬ字状に形成された係止部とを備え、前記液体噴射口の上端縁には、前記ノズルカバーをヒンジ部を回動支点として折り曲げたとき前記係止部が係止される係合部が形成されていることを特徴とする液体噴射装置。 The liquid ejecting apparatus according to claim 2, wherein
The apparatus main body is made of synthetic resin, and the nozzle cover is integrally formed on the apparatus main body. The nozzle cover has a hinge portion formed at the base end and an L-shape formed at the distal end. And an engaging portion that is engaged with the engaging portion when the nozzle cover is bent with the hinge portion serving as a rotation fulcrum. A liquid ejecting apparatus.
JP2004009091A 2004-01-16 2004-01-16 Liquid jet apparatus Pending JP2005199193A (en)

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EP1902914A3 (en) * 2006-07-08 2008-07-09 Vola Plast Werner Hoppach KG Nozzle for a windscreen wiper assembly
EP1902914A2 (en) * 2006-07-08 2008-03-26 Vola Plast Werner Hoppach KG Nozzle for a windscreen wiper assembly
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EP3628551A1 (en) * 2012-02-23 2020-04-01 dlhBOWLES, Inc. Adaptive, multi-mode washer system
US20150197218A1 (en) * 2014-01-16 2015-07-16 Mitsuba Corporation Nozzle, manufacturing method of the same, and washer nozzle
US10814837B2 (en) * 2014-01-16 2020-10-27 Mitsuba Corporation Nozzle, manufacturing method of the same, and washer nozzle
CN108515464A (en) * 2018-06-14 2018-09-11 中铁工程装备集团盾构制造有限公司 The universal sand blasting unit of high-pressure water jet and cleaning system
CN108515464B (en) * 2018-06-14 2024-02-02 中铁工程装备集团盾构制造有限公司 High-pressure water jet universal sand blasting device and cleaning system

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