JP5501551B2 - Washer device - Google Patents

Washer device Download PDF

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Publication number
JP5501551B2
JP5501551B2 JP2006259590A JP2006259590A JP5501551B2 JP 5501551 B2 JP5501551 B2 JP 5501551B2 JP 2006259590 A JP2006259590 A JP 2006259590A JP 2006259590 A JP2006259590 A JP 2006259590A JP 5501551 B2 JP5501551 B2 JP 5501551B2
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Prior art keywords
washer
liquid
valve
inflow
outflow
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JP2008080827A (en
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伸 秋元
将三郎 飯島
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Mitsuba Corp
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Mitsuba Corp
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Priority to JP2006259590A priority Critical patent/JP5501551B2/en
Priority to PCT/JP2007/069146 priority patent/WO2008038816A1/en
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    • 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
    • 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
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3006—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being actuated by the pressure of the fluid to be sprayed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/02—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery
    • B05B12/04—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery for sequential operation or multiple outlets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
    • B05B9/0423—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material for supplying liquid or other fluent material to several spraying apparatus
    • 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
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)

Description

本発明は、例えば、自動車用のウォッシャ液（洗浄液）をフロントウインドシールドガラス等の洗浄面に噴射させるウォッシャ装置に関する。   The present invention relates to a washer device that injects, for example, an automotive washer liquid (cleaning liquid) onto a cleaning surface such as a front windshield glass.

この種のウォッシャ装置として、図４及び図５に示すものがある（例えば、特許文献１参照。）。   As this type of washer device, there is one shown in FIGS. 4 and 5 (see, for example, Patent Document 1).

このウォッシャ装置１は、図４に示すように、ウォッシャ液（洗浄液）Ｗを貯蔵するタンク２と、このタンク２にホース３を介して接続され、該タンク２内のウォッシャ液Ｗをノズル側（外部）へ供給するポンプＰと、このポンプＰにホース３Ａを介して接続され、該ポンプＰから供給されたウォッシャ液Ｗを２つに分配するウォッシャ液分配ジョイント５と、このウォッシャ液分配ジョイント５の一対の流出管６Ｂ，６Ｃにホース３Ｂ，３Ｃを介して接続され、該ウォッシャ液分配ジョイント５から分配されたウォッシャ液Ｗを図示しないフロントウインドシールドガラス等の洗浄面に噴射させる左右一対のウォッシャノズル４Ｌ，４Ｒとを備えている。   As shown in FIG. 4, the washer device 1 is connected to a tank 2 for storing a washer liquid (cleaning liquid) W and to the tank 2 via a hose 3, and the washer liquid W in the tank 2 is connected to the nozzle side ( A pump P to be supplied to the outside), a washer liquid distribution joint 5 connected to the pump P via a hose 3A and distributing the washer liquid W supplied from the pump P into two, and the washer liquid distribution joint 5 A pair of left and right washers connected to a pair of outflow pipes 6B and 6C via hoses 3B and 3C and spraying the washer liquid W distributed from the washer liquid distribution joint 5 onto a cleaning surface such as a front windshield glass (not shown). Nozzles 4L and 4R are provided.

また、図５に示すように、ウォッシャ液分配ジョイント５は、ポンプＰから供給されるウォッシャ液Ｗをホース３Ａを介して導入する流入管６Ａと該流入管６Ａから弁室Ｑを介してウォッシャ液Ｗを２つに分配して左右一対のウォッシャノズル４Ｌ，４Ｒに供給する一対の流出管６Ｂ，６Ｃをそれぞれ一体形成したＴ字形のジョイント本体６と、弁室Ｑ内に収納され、流入管６Ａの連通口６ａと一対の流出管６Ｂ，６Ｃの各連通口６ｂ，６ｃを開閉する逆止弁７と、この逆止弁７を流入管６Ａの連通口６ａと各流出管６Ｂ，６Ｃの連通口６ｂ，６ｃをそれぞれ閉塞する方向に付勢する圧縮コイルスプリング８と、この圧縮コイルスプリング８を押さえると共に弁室Ｑの上面開口部を密閉する蓋体９とを備えている。   Further, as shown in FIG. 5, the washer liquid distribution joint 5 includes an inflow pipe 6A for introducing the washer liquid W supplied from the pump P through the hose 3A, and the washer liquid from the inflow pipe 6A through the valve chamber Q. A pair of outflow pipes 6B and 6C for distributing W to two and supplying the pair of left and right washer nozzles 4L and 4R are integrally formed with the joint body 6 and the valve chamber Q, respectively. A check valve 7 that opens and closes the communication ports 6a and 6c of the pair of outflow pipes 6B and 6C, and the check valve 7 communicates with the communication port 6a of the inflow pipe 6A and the outflow pipes 6B and 6C. A compression coil spring 8 that urges the ports 6b and 6c in a closing direction, and a lid 9 that holds the compression coil spring 8 and seals the upper surface opening of the valve chamber Q are provided.

実開平４−５２１３４号公報Japanese Utility Model Publication No. 4-52134

しかしながら、前記従来のウォッシャ装置１では、ポンプＰとウォッシャ液分配ジョイント５のジョイント本体６の流入管６Ａをホース３Ａで接続し、かつ、ジョイント本体６の一対の流出管６Ｂ，６Ｃと左右一対のウォッシャノズル４Ｌ，４Ｒをホース３Ｂ，３Ｃでそれぞれ接続しなければならなかったため、部品点数及び組み付け工数が多くなり、コスト高になった。   However, in the conventional washer device 1, the pump P and the inflow pipe 6A of the joint body 6 of the washer liquid distribution joint 5 are connected by the hose 3A, and the pair of outflow pipes 6B and 6C of the joint body 6 and the pair of left and right Since the washer nozzles 4L and 4R had to be connected by the hoses 3B and 3C, respectively, the number of parts and the number of assembling steps increased, resulting in an increase in cost.

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、ホースの部品点数及び組み付け工数を削減して低コスト化を図ることができるウォッシャ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 of the present invention is to provide a washer device that can reduce the number of parts and assembly man-hours of the hose and can reduce the cost.

請求項１の発明は、ウォッシャ液を貯蔵するタンクと、このタンク内のウォッシャ液を外部へ供給するポンプと、このポンプから供給された前記ウォッシャ液を洗浄面に噴射させる液体噴射口を形成した２つのウォッシャノズルとを備えたウォッシャ装置において、前記一方のウォッシャノズルのノズルハウジングには、前記ウォッシャ液を導入する流入路と該流入路から弁室を介して前記ウォッシャ液を２つに分配して前記液体噴射口に前記ウォッシャ液を供給する液体供給流路及び流出路をそれぞれ形成し、これら流入路と液体供給流路及び流出路を前記弁室内に収納された逆止弁で開閉自在にし、かつ前記ポンプと前記一方のウォッシャノズルの流入路をホースで接続すると共に、前記一方のウォッシャノズルの流出路と前記他方のウォッシャノズルの流入路をホースで接続したことを特徴とするウォッシャ装置であって、前記一方のウォッシャノズルの前記弁室を、弁座部を有した略円筒状の弁ケースと該弁ケースの下面開口部を覆う蓋体とで密閉形成し、前記弁ケースの前記弁座部の上側には、前記流入路を形成する流入管と前記流出路を形成する流出管とを略円筒状の仕切壁を介して一直線状に延びるように一体突出形成し、前記弁ケースの前記弁座部に前記流入路と液体供給流路を連通させる連通口を形成すると共に、前記流入路と前記流出路を連通させる連通口を形成し、これら流入路と液体供給流路の連通口と前記流入路と流出路の連通口を前記逆止弁の弁体で閉塞・開放自在にしたことを特徴とする。 According to the first aspect of the present invention, a tank for storing the washer liquid, a pump for supplying the washer liquid in the tank to the outside, and a liquid injection port for injecting the washer liquid supplied from the pump onto the cleaning surface are formed. In the washer device having two washer nozzles, the nozzle housing of the one washer nozzle distributes the washer liquid into two through an inlet path for introducing the washer liquid and a valve chamber from the inlet path. Forming a liquid supply flow path and an outflow path for supplying the washer liquid to the liquid ejection port, and opening and closing the inflow path, the liquid supply flow path and the outflow path with a check valve housed in the valve chamber. In addition, the pump and the inflow path of the one washer nozzle are connected by a hose, and the outflow path of the one washer nozzle and the other washer The inlet channel of Sshanozuru a washer and wherein the connected hose, the valve chamber of the washer nozzle of the one, lower surface opening of the substantially cylindrical valve case and the valve casing having a valve seat A lid that covers the sealing portion is hermetically formed, and on the upper side of the valve seat portion of the valve case, an inflow pipe that forms the inflow path and an outflow pipe that forms the outflow path are provided with a substantially cylindrical partition wall. The valve seat portion of the valve case is formed so as to extend in a straight line, and a communication port for communicating the inflow path and the liquid supply path is formed in the valve seat portion, and the inflow path and the outflow path are communicated with each other. A communication port is formed, and the communication port of the inflow channel, the liquid supply channel, and the communication port of the inflow channel and the outflow channel are freely closed and opened by the valve body of the check valve.

以上説明したように、請求項１の発明によれば、一方のウォッシャノズルのノズルハウジングに他方のウォッシャノズルにウォッシャ液を供給する流出路を形成したことにより、従来のものに比べて、ホースの部品点数及び組み付け工数を削減してその組み付け作業性を向上させることができ、低コスト化を図ることができる。さらに、流入路と液体供給流路及び流出路を弁室内に収納された逆止弁で開閉自在にしたことにより、ウォッシャノズルの１つ逆止弁で２つのウォッシャノズルに供給されたウォッシャ液の逆流を簡便な構造で防止することができる。
また、一方のウォッシャノズルの弁室を、弁座部を有した略円筒状の弁ケースと該弁ケースの下面開口部を覆う蓋体とで密閉形成し、この略円筒状の弁ケースの弁座部に前記流入路と液体供給流路を連通させる連通口を形成すると共に、前記流入路と前記流出路を連通させる連通口を形成し、これら流入路と液体供給流路の連通口と前記流入路と流出路の連通口を前記逆止弁の弁体で閉塞・開放自在にしたことで、一方のウォッシャノズルに簡便な構成でウォッシャ液の分配機能と逆止弁を持たせることができる。 As described above, according to the first aspect of the present invention, the outflow passage for supplying the washer liquid to the other washer nozzle is formed in the nozzle housing of one washer nozzle, so that the hose of the hose can be compared with the conventional one. The number of parts and the number of assembling steps can be reduced, the assembling workability can be improved, and the cost can be reduced. Furthermore, the inflow passage, the liquid supply flow passage, and the outflow passage can be freely opened and closed by a check valve housed in the valve chamber, so that the washer liquid supplied to two washer nozzles by one check valve of the washer nozzle can be obtained. Backflow can be prevented with a simple structure.
Further, the valve chamber of one washer nozzle is hermetically formed by a substantially cylindrical valve case having a valve seat portion and a lid covering the lower surface opening of the valve case, and the valve of the substantially cylindrical valve case is formed. In the seat portion, a communication port for communicating the inflow channel and the liquid supply channel is formed, and a communication port for communicating the inflow channel and the outflow channel is formed. The communication port of the inflow path and the outflow path can be freely closed and opened by the valve body of the check valve, so that one washer nozzle can have a washer fluid distribution function and a check valve with a simple configuration. .

以下、本発明の一実施形態を図面に基づいて説明する。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

図１は本発明の一実施形態のウォッシャ装置を示す構成図、図２は同ウォッシャ装置に用いられるウォッシャ液分配機能を有したウォッシャノズルの逆止弁の閉状態を示す断面図、図３は同ウォッシャノズルの逆止弁の開状態を示す断面図である。   FIG. 1 is a configuration diagram showing a washer device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view showing a closed state of a check valve of a washer nozzle having a washer liquid distribution function used in the washer device, and FIG. It is sectional drawing which shows the open state of the non-return valve of the same washer nozzle.

図１に示すように、ウォッシャ装置１０は、ウォッシャ液（洗浄液）Ｗを貯蔵するタンク１１と、このタンク１１内のウォッシャ液Ｗをホース１２を介してノズル側（外部）へ供給するポンプ１３と、このポンプ１３から供給されたウォッシャ液Ｗを図示しないフロントウインドシールドガラス等の洗浄面に噴射させる２つのウォッシャノズル２０，２０′とを備えている。このポンプ１３側に位置する一方のウォッシャノズル２０は、ポンプ１３から供給されたウォッシャ液Ｗを該一方のウォッシャノズル２０のノズルハウジング２１の液体噴射口２１ａと他方のウォッシャノズル２０′の２つに分配するウォッシャ液分配機能を有している。そして、このウォッシャ液分配機能を有した一方のウォッシャノズル２０に、ホース１４，１５を介してポンプ１３と他方のウォッシャノズル２０′とが直列に接続されている。   As shown in FIG. 1, a washer device 10 includes a tank 11 that stores a washer liquid (cleaning liquid) W, and a pump 13 that supplies the washer liquid W in the tank 11 to the nozzle side (external) via a hose 12. The washer liquid W supplied from the pump 13 is provided with two washer nozzles 20, 20 ′ for injecting the washer liquid W onto a cleaning surface such as a front windshield glass (not shown). One washer nozzle 20 located on the side of the pump 13 transfers the washer liquid W supplied from the pump 13 to two liquid nozzles 21a of the nozzle housing 21 of the one washer nozzle 20 and the other washer nozzle 20 '. It has a washer liquid distribution function. The pump 13 and the other washer nozzle 20 'are connected in series via the hoses 14 and 15 to one washer nozzle 20 having the washer liquid distribution function.

図１〜図３に示すように、一方のウォッシャノズル２０は、ポンプ１３から供給されるウォッシャ液Ｗを導入する流入路Ｇになる略円筒状の流入管２２と、この流入管２２から弁室Ｒになる略円筒状の弁ケース２３及び蓋体２４を介してウォッシャ液Ｗを２つに分配して液体噴射口２１ａに供給する液体供給流路２５及び他方のウォッシャノズル（外部）２０′にそれぞれ供給する流出路Ｓになる略円筒状の流出管２６をそれぞれ形成した合成樹脂製のノズルハウジング２１と、弁室Ｒ内に収納され、流入路Ｇと液体供給流路２５及び流出路Ｓを開閉する逆止弁３０と、この逆止弁３０を流入路Ｇと液体供給流路２５及び流出路Ｓを閉塞する方向に付勢する圧縮コイルスプリング（弾性体）３３とを備えている。   As shown in FIGS. 1 to 3, one washer nozzle 20 includes a substantially cylindrical inflow pipe 22 serving as an inflow path G for introducing the washer liquid W supplied from the pump 13, and a valve chamber from the inflow pipe 22. The washer liquid W is distributed into two via the substantially cylindrical valve case 23 and the lid 24 which are R, and supplied to the liquid jet port 21a and the other washer nozzle (external) 20 '. A nozzle housing 21 made of synthetic resin, each having a substantially cylindrical outflow pipe 26 to be an outflow path S to be supplied, and a valve chamber R are accommodated, and the inflow path G, the liquid supply flow path 25 and the outflow path S are connected. A check valve 30 that opens and closes, and a compression coil spring (elastic body) 33 that urges the check valve 30 in a direction to close the inflow path G, the liquid supply flow path 25, and the outflow path S are provided.

図２及び図３に示すように、弁室Ｒは、弁座部２３ａを有した略円筒状の弁ケース２３と、この弁ケース２３の下面開口部２３ｂを覆う合成樹脂製で略円形皿状の蓋体２４とで密閉された空間になるように形成されている。また、弁ケース２３の弁座部２３ａの上側には、流入路Ｇを形成する流入管２２と流出路Ｓを形成する流出管２６とを円筒状の仕切壁２７を介して一直線状に延びるように一体突出形成してある。   As shown in FIGS. 2 and 3, the valve chamber R is made of a synthetic resin that covers a substantially cylindrical valve case 23 having a valve seat portion 23 a and a lower surface opening 23 b of the valve case 23. The lid 24 is formed to be a sealed space. Further, on the upper side of the valve seat portion 23 a of the valve case 23, an inflow pipe 22 that forms the inflow path G and an outflow pipe 26 that forms the outflow path S extend in a straight line through a cylindrical partition wall 27. Are integrally formed.

さらに、弁ケース２３の弁座部２３ａには、流入管２２の流入路Ｇと液体供給流路２５を連通させる円形状の連通口２５ａと、流入管２２の流入路Ｇと流出管２６の流出路Ｓを連通させるＣ字状の連通口２６ａをそれぞれ形成してある。これら流入管２２の流入路Ｇと液体供給流路２５との円形状の連通口２５ａと、流入管２２の流入路Ｇと流出管２６の流出路ＳとのＣ字状の連通口２６ａとは、後述する逆止弁３０の弁体３２で閉塞・開放されるようになっている。尚、蓋体２４は弁ケース２３の下面開口部２３ｂに一体形成されたフック部２３ｃに係合凹部２４ｃを係止させることにより固定されている。   Further, the valve seat 23 a of the valve case 23 has a circular communication port 25 a that allows the inflow path G of the inflow pipe 22 to communicate with the liquid supply flow path 25, and the outflow of the inflow path G of the inflow pipe 22 and the outflow pipe 26. A C-shaped communication port 26a for communicating the path S is formed. The circular communication port 25a between the inflow channel G of the inflow tube 22 and the liquid supply channel 25 and the C-shaped communication port 26a between the inflow channel G of the inflow tube 22 and the outflow channel S of the outflow tube 26 are The valve body 32 of the check valve 30, which will be described later, is closed / opened. The lid 24 is fixed by engaging the engaging recess 24c with the hook 23c formed integrally with the lower surface opening 23b of the valve case 23.

また、図１〜図３に示すように、各ウォッシャノズル２０，２０′の流入管２２，２２′の導入口２２ｂ，２２ｂ′の端部には、ホース係止用の係止段部２２ｃ，２２ｃ′を形成してある。さらに、一方のウォッシャノズル２０の流出管２６の吐出口２６ｂの端部には、ホース係止用の係止段部２６ｃを形成してある。そして、ポンプ１３と一方のウォッシャノズル２０の流入管２２はホース１４で接続され、また、一方のウォッシャノズル２０の流出管２６と他方のウォッシャノズル２０′の流入管２２′はホース１５で接続されている。   Further, as shown in FIGS. 1 to 3, the end portions of the inlet ports 22b and 22b ′ of the inflow pipes 22 and 22 ′ of the washer nozzles 20 and 20 ′ are respectively provided with locking step portions 22c and hose locking portions. 22c 'is formed. Further, a locking step 26c for locking the hose is formed at the end of the discharge port 26b of the outflow pipe 26 of the one washer nozzle 20. The pump 13 and the inflow pipe 22 of one washer nozzle 20 are connected by a hose 14, and the outflow pipe 26 of one washer nozzle 20 and the inflow pipe 22 ′ of the other washer nozzle 20 ′ are connected by a hose 15. ing.

図２及び図３に示すように、逆止弁３０は、合成樹脂製で厚肉円筒状の本体３１と、この本体３１の上側大径部３１ａに嵌め込まれて弁ケース２３の下端と蓋体２４との間に係止された円筒状の蛇腹部３２ａを有したゴム製の弁体３２とで構成されている。そして、本体３１の下面に円環溝状に形成された凹部３１ｂと蓋体２４の上面に円環状に形成された凹部２４ｂとの間に圧縮コイルスプリング３３を介在してある。   As shown in FIGS. 2 and 3, the check valve 30 includes a thick cylindrical body 31 made of synthetic resin, and a lower end and a lid body of the valve case 23 fitted into the upper large-diameter portion 31 a of the body 31. 24 and a rubber valve body 32 having a cylindrical bellows portion 32 a locked between them. A compression coil spring 33 is interposed between a recess 31 b formed in an annular groove shape on the lower surface of the main body 31 and a recess 24 b formed in an annular shape on the upper surface of the lid 24.

さらに、図１に示すように、他方のウォッシャノズル２０′は、一方のウォッシャノズル２０の流出管２６からホース１５を介して供給されるウォッシャ液Ｗを導入する流入路Ｇになる略円筒状の流入管２２′と、この流入管２２′の端部から略直角に折れ曲がって液体噴射口２１ａ′へ連通する液体供給流路２５とをそれぞれ形成した合成樹脂製のノズルハウジング２１′とを備えている。   Further, as shown in FIG. 1, the other washer nozzle 20 ′ has a substantially cylindrical shape serving as an inflow path G for introducing the washer fluid W supplied from the outflow pipe 26 of the one washer nozzle 20 through the hose 15. And a synthetic resin nozzle housing 21 'formed with an inflow pipe 22' and a liquid supply flow path 25 that is bent at a substantially right angle from the end of the inflow pipe 22 'and communicates with the liquid injection port 21a'. Yes.

以上実施形態のウォッシャ装置１０によれば、一方のウォッシャノズル２０は、ポンプ１３から供給されるウォッシャ液Ｗを該一方のウォッシャノズル２０のノズルハウジングの液体噴射口２１ａと他方のウォッシャノズル２０′に分配するものであり、その使用時には、ポンプ１３から一方のウォッシャノズル２０の流入管２２に導入されるウォッシャ液Ｗの圧力により圧縮コイルスプリング３３の付勢力に抗して逆止弁３０が流入管２２と液体供給流路２５との円形状の連通口２５ａ、及び、流入管２２と流出管２６とのＣ字状の連通口２６ａを開く方向に移動する。これにより、図３に矢印で示すように、ウォッシャ液Ｗは、各連通口２５ａ，２６ａを経て液体供給流路２５と流出管２６に分岐してそれぞれ流れ、各ウォッシャノズル２０，２０′の各液体噴射口２１ａ，２１ａ′からそれぞれ噴射される。   According to the washer device 10 of the above embodiment, one washer nozzle 20 applies the washer liquid W supplied from the pump 13 to the liquid injection port 21a of the nozzle housing of the one washer nozzle 20 and the other washer nozzle 20 '. At the time of use, the check valve 30 is inflow pipe against the urging force of the compression coil spring 33 by the pressure of the washer liquid W introduced from the pump 13 into the inflow pipe 22 of the one washer nozzle 20. It moves to the direction which opens the circular communication port 25a of 22 and the liquid supply flow path 25, and the C-shaped communication port 26a of the inflow tube 22 and the outflow tube 26. As a result, as indicated by arrows in FIG. 3, the washer liquid W flows through the communication ports 25a and 26a, branches into the liquid supply flow path 25 and the outflow pipe 26, and flows through the respective wash nozzles 20 and 20 '. The liquid is ejected from the liquid ejection ports 21a and 21a '.

また、非使用時（逆止弁３０の作動停止時）には、図２に示すように、一方のウォッシャノズル２０の圧縮コイルスプリング３３の付勢力により逆止弁３０の弁体３２で流入管２２と液体供給流路２５との円形状の連通口２５ａ、及び、流入管２２と流出管２６とのＣ字状の連通口２６ａを確実に閉塞させることができる。即ち、一方のウォッシャノズル２０の１つの逆止弁３０で２つのウォッシャノズル２０，２０′のウォッシャ液Ｗの逆流を確実に防止することができる。また、車両走行時やボンネット開閉時に、一方のウォッシャノズル２０の流入管２２内に溜まったウォッシャ液Ｗの洩れを確実に防止することができる。   Further, when not in use (when the check valve 30 is stopped), as shown in FIG. 2, the inflow pipe is formed by the valve body 32 of the check valve 30 by the urging force of the compression coil spring 33 of one washer nozzle 20. The circular communication port 25a between the liquid supply channel 25 and the C-shaped communication port 26a between the inflow tube 22 and the outflow tube 26 can be reliably closed. That is, the backflow of the washer fluid W from the two washer nozzles 20 and 20 ′ can be reliably prevented by the one check valve 30 of the one washer nozzle 20. Further, it is possible to reliably prevent the washer liquid W from leaking in the inflow pipe 22 of the one washer nozzle 20 when the vehicle is running or when the hood is opened / closed.

さらに、このウォッシャ装置１０では、一方のウォッシャノズル２０に該一方のウォッシャノズル２０のノズルハウジング２１の液体噴射口２１ａと他方のウォッシャノズル２０′の２つにウォッシャ液Ｗを分配するウォッシャ液分配機能を持たせ、このウォッシャ液分配ジョイント機能を有した一方のウォッシャノズル２０にホース１４，１５を介してポンプ１３と他方のウォッシャノズル２０′とを直列に接続したことにより、従来のものに比べて、ホースの部品点数及び組み付け工数を削減することができる。即ち、一方のウォッシャノズル２０の流出管２６と他方のウォッシャノズル２０′の流入管２２´とにホース１５を配索するだけで済むため、ウォッシャ装置１０の組み付け作業性を向上させることができると共に、全体の低コスト化を図ることができる。   Further, in this washer device 10, a washer liquid distribution function that distributes the washer liquid W to one of the washer nozzles 20, that is, the liquid injection port 21 a of the nozzle housing 21 of the one washer nozzle 20 and the other washer nozzle 20 ′. By connecting the pump 13 and the other washer nozzle 20 'in series via the hoses 14 and 15 to one washer nozzle 20 having this washer liquid distribution joint function, compared with the conventional one. The number of hose parts and assembly man-hours can be reduced. That is, since it is only necessary to route the hose 15 between the outflow pipe 26 of one washer nozzle 20 and the inflow pipe 22 'of the other washer nozzle 20', the workability of assembling the washer device 10 can be improved. Therefore, the overall cost can be reduced.

本発明の一実施形態のウォッシャ装置を示す構成図である。It is a block diagram which shows the washer apparatus of one Embodiment of this invention. 上記ウォッシャ装置に用いられるウォッシャ液分配機能を有したウォッシャノズルの逆止弁の閉状態を示す断面図である。It is sectional drawing which shows the closed state of the non-return valve of the washer nozzle with a washer liquid distribution function used for the said washer apparatus. 上記ウォッシャノズルの逆止弁の開状態を示す断面図である。It is sectional drawing which shows the open state of the non-return valve of the said washer nozzle. 従来のウォッシャ装置の概略構成図である。It is a schematic block diagram of the conventional washer apparatus. 上記従来のウォッシャ装置に用いられるウォッシャ液分配ジョイントの断面図である。It is sectional drawing of the washer liquid distribution joint used for the said conventional washer apparatus.

符号の説明Explanation of symbols

１０ ウォッシャ装置
１１ タンク
１３ ポンプ
１４，１５ ホース
２０ 一方のウォッシャノズル
２０′ 他方のウォッシャノズル
２１ ノズルハウジング
２２ 流入管（流入路）
２３ 弁ケース（弁室）
２３ａ 弁座部
２３ｂ 下面開口部
２４ 蓋体
２５ 液体供給流路
２６ 流出管（流出路）
２６ａ 連通口
３０ 逆止弁
３２ 弁体
３３ 圧縮コイルスプリング（弾性体）
Ｇ 流入路
Ｒ 弁室
Ｓ 流出路
Ｗ ウォッシャ液
DESCRIPTION OF SYMBOLS 10 Washer apparatus 11 Tank 13 Pump 14,15 Hose 20 One washer nozzle 20 'The other washer nozzle 21 Nozzle housing 22 Inflow pipe (inflow channel)
23 Valve case (valve chamber)
23a Valve seat part 23b Lower surface opening part 24 Lid body 25 Liquid supply flow path 26 Outflow pipe (outflow path)
26a Communication port 30 Check valve 32 Valve body 33 Compression coil spring (elastic body)
G inflow path R valve chamber S outflow path W washer fluid

Claims (1)

ウォッシャ液を貯蔵するタンクと、このタンク内のウォッシャ液を外部へ供給するポンプと、このポンプから供給された前記ウォッシャ液を洗浄面に噴射させる液体噴射口を形成した２つのウォッシャノズルとを備えたウォッシャ装置において、前記一方のウォッシャノズルのノズルハウジングには、前記ウォッシャ液を導入する流入路と該流入路から弁室を介して前記ウォッシャ液を２つに分配して前記液体噴射口に前記ウォッシャ液を供給する液体供給流路及び流出路をそれぞれ形成し、これら流入路と液体供給流路及び流出路を前記弁室内に収納された逆止弁で開閉自在にし、かつ前記ポンプと前記一方のウォッシャノズルの流入路をホースで接続すると共に、前記一方のウォッシャノズルの流出路と前記他方のウォッシャノズルの流入路をホースで接続したことを特徴とするウォッシャ装置であって、
前記一方のウォッシャノズルの前記弁室を、弁座部を有した略円筒状の弁ケースと該弁ケースの下面開口部を覆う蓋体とで密閉形成し、前記弁ケースの前記弁座部の上側には、前記流入路を形成する流入管と前記流出路を形成する流出管とを略円筒状の仕切壁を介して一直線状に延びるように一体突出形成し、前記弁ケースの前記弁座部に前記流入路と液体供給流路を連通させる連通口を形成すると共に、前記流入路と前記流出路を連通させる連通口を形成し、これら流入路と液体供給流路の連通口と前記流入路と流出路の連通口を前記逆止弁の弁体で閉塞・開放自在にしたことを特徴とするウォッシャ装置。 A tank for storing the washer liquid, a pump for supplying the washer liquid in the tank to the outside, and two washer nozzles forming a liquid injection port for injecting the washer liquid supplied from the pump onto the cleaning surface In the washer device, a nozzle housing of the one washer nozzle has an inflow path for introducing the washer liquid, and the washer liquid is divided into two from the inflow path through a valve chamber to the liquid ejection port. A liquid supply passage and an outflow passage for supplying washer liquid are formed, and the inflow passage, the liquid supply passage and the outflow passage can be opened and closed by a check valve housed in the valve chamber, and the pump and the one The inflow path of the washer nozzle is connected with a hose, and the outflow path of the one washer nozzle and the flow of the other washer nozzle are connected. The road A washer apparatus characterized by connecting a hose,
The valve chamber of the one washer nozzle is hermetically formed by a substantially cylindrical valve case having a valve seat portion and a lid covering the lower surface opening of the valve case, and the valve seat portion of the valve case On the upper side, an inflow pipe forming the inflow path and an outflow pipe forming the outflow path are integrally formed so as to extend in a straight line through a substantially cylindrical partition wall, and the valve seat of the valve case is formed. A communication port for communicating the inflow channel and the liquid supply channel is formed at a portion, and a communication port for communicating the inflow channel and the outflow channel is formed. A washer device characterized in that the communication port of the passage and the outflow passage is freely closed and opened by the valve body of the check valve.
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FR2974778B1 (en) * 2011-05-06 2013-05-03 Peugeot Citroen Automobiles Sa CIRCUIT FOR DISPENSING WINDSCREEN LIQUID FOR MOTOR VEHICLE AND METHOD OF PROTECTING SUCH CIRCUIT.
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