JP2010143475A - Headlamp cleaner - Google Patents

Headlamp cleaner Download PDF

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Publication number
JP2010143475A
JP2010143475A JP2008324255A JP2008324255A JP2010143475A JP 2010143475 A JP2010143475 A JP 2010143475A JP 2008324255 A JP2008324255 A JP 2008324255A JP 2008324255 A JP2008324255 A JP 2008324255A JP 2010143475 A JP2010143475 A JP 2010143475A
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Prior art keywords
piston
nozzle cover
positioning
bracket
vehicle body
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JP2008324255A
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JP5173785B2 (en
Inventor
Takahiro Matsunaga
高宏 松永
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Koito Manufacturing Co Ltd
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Koito Manufacturing Co Ltd
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Priority to JP2008324255A priority Critical patent/JP5173785B2/en
Priority to KR1020090125337A priority patent/KR101053952B1/en
Priority to CN2009102608398A priority patent/CN101746359B/en
Publication of JP2010143475A publication Critical patent/JP2010143475A/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
    • B60S1/522—Arrangement of nozzles; Liquid spreading means moving liquid spreading means, e.g. arranged in wiper arms
    • B60S1/528—Arrangement of nozzles; Liquid spreading means moving liquid spreading means, e.g. arranged in wiper arms the spreading means being moved between a rest position and a working position
    • 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
    • B60S1/56—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens
    • B60S1/60—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens for signalling devices, e.g. reflectors
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Nozzles (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a headlamp cleaner reduced in noise and vibration generated by the rattling of a nozzle cover while securing a sufficient clearance to fix the nozzle cover inserted through the front part of a vehicle body side opening. <P>SOLUTION: The headlamp cleaner includes a piston having an injection nozzle and the nozzle cover 6, a cylinder supporting the piston in a longitudinally forward/backward movable manner, and a hollow bracket 4 for mounting the cylinder in the vehicle body side opening. The nozzle cover 6 is mounted to the piston through the outside of the vehicle body side opening with an engaging means, and a positioned edge formed at the rear face rib of the nozzle cover 6 is positioned abutting on a positioning wall at the inner periphery of the bracket. The positioned edge and the positioning wall are inclined to the forward/backward moving direction of the piston, respectively, so as to spread out widely from the inside of the vehicle body side opening toward the outside. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、車両用ヘッドランプを洗浄するヘッドランプクリーナーに関し、特には、バンパー内側に格納した噴射ノズルを外から隠すノズルカバーと噴射ノズルを内外に出し入れさせる車体側開口部との位置決めに関する。   The present invention relates to a headlamp cleaner for cleaning a vehicle headlamp, and more particularly to positioning of a nozzle cover that hides an injection nozzle stored inside a bumper from the outside and a vehicle body side opening that allows the injection nozzle to be taken in and out.

ヘッドランプクリーナーは、進退動作するピストンの先端部近傍に設けた噴射ノズルを車体側開口部から出し入れして車両用ヘッドランプを洗浄する装置である。特許文献１のヘッドランプクリーナーは、噴射ノズルを格納する際に車体側開口部を外から覆い隠すノズルカバー７０を進退動作する前記ピストンの先端部に有する。また、ノズルカバー７０は、その後面側に突出する一対の位置決め縁７３２（特許文献１の図４を参照）がバンパーの内側で前記ピストンを支持するブラケット５０の位置決め壁５２４，５２５と当接する。その結果、ノズルカバー７０は、進退方向と直交する方向に位置決めされるため、車体側開口部からずれて内部を露出させることが無い。   The headlamp cleaner is a device that cleans a vehicle headlamp by taking in and out an injection nozzle provided in the vicinity of the front end of a piston that moves forward and backward. The headlamp cleaner of Patent Document 1 has a nozzle cover 70 that covers the vehicle body side opening from the outside when storing the injection nozzle at the tip of the piston that moves forward and backward. In addition, the nozzle cover 70 has a pair of positioning edges 732 (see FIG. 4 of Patent Document 1) protruding rearward and abuts against the positioning walls 524 and 525 of the bracket 50 that supports the piston inside the bumper. As a result, the nozzle cover 70 is positioned in a direction orthogonal to the advancing / retreating direction, so that the nozzle cover 70 is not displaced from the opening on the vehicle body side to expose the inside.

特開２００６−４４４３６号JP 2006-44436 A

特許文献１のヘッドランプクリーナーは、ノズルカバー７０の位置決め縁７３２とブラケット５０の位置決め壁５２４，５２５が、共にピストンの進退方向と平行に形成されている。従って、製造誤差及び車体への組付けによる変形等によって位置決め縁７３２間の幅が位置決め壁５２４，５２５間の幅より大きく形成された場合には、ノズルカバー７０を車体側開口部（ブラケット５０の開口部）に挿入してピストンに取り付けることが出来ない。従って、ノズルカバー７０の位置決め縁７３２とブラケット５０の位置決め壁５２４，５２５との間には、製造誤差等があってもノズルカバー７０をブラケット５０に挿入可能な微小隙間を設計上設ける必要がある
前記微小隙間は、車両の走行時にノズルカバーをガタつかせて騒音や振動を発生させる原因となることや、商品性からも、出来るだけ小さくすることが望ましい。しかし、前記微小隙間を小さくし過ぎた場合には、製造誤差や車体への組付けによる変形等によってノズルカバーをブラケットに挿入出来なくなる。製造誤差を小さくすることは、製造コストの増加にも繋がるため、前記微小隙間を小さくすることには、限度がある。 In the headlamp cleaner of Patent Document 1, the positioning edge 732 of the nozzle cover 70 and the positioning walls 524 and 525 of the bracket 50 are both formed in parallel with the advancing / retreating direction of the piston. Accordingly, when the width between the positioning edges 732 is formed larger than the width between the positioning walls 524 and 525 due to a manufacturing error, deformation due to assembly to the vehicle body, or the like, the nozzle cover 70 is opened on the vehicle body side opening (the bracket 50 It cannot be inserted into the opening) and attached to the piston. Therefore, it is necessary to design a minute gap between the positioning edge 732 of the nozzle cover 70 and the positioning walls 524 and 525 of the bracket 50 so that the nozzle cover 70 can be inserted into the bracket 50 even if there is a manufacturing error. It is desirable to make the minute gap as small as possible because it causes the nozzle cover to rattle when the vehicle is running and causes noise and vibration, and from the point of view of merchantability. However, if the minute gap is made too small, the nozzle cover cannot be inserted into the bracket due to a manufacturing error or deformation due to assembly to the vehicle body. Since reducing the manufacturing error leads to an increase in manufacturing cost, there is a limit to reducing the minute gap.

上記問題を考慮して本願では、ノズルカバー側の位置決め縁とブラケット側の位置決め壁間に形成する微小隙間を従来よりも小さくしてノズルカバーのガタつきによる騒音や振動を低減させつつ、ノズルカバーを車体側開口部の前から挿入して固定するために十分な隙間を確保したヘッドランプクリーナーを提供する。   In consideration of the above problems, in the present application, the nozzle cover is provided with a small gap formed between the positioning edge on the nozzle cover side and the positioning wall on the bracket side to reduce noise and vibration due to rattling of the nozzle cover. Provided is a headlamp cleaner that secures a sufficient clearance to be inserted and fixed from the front of the vehicle body side opening.

洗浄液の噴射ノズルと該噴射ノズルを前方から覆うノズルカバーとを有するピストンと、前記ピストンを前後に進退動作可能に支持するシリンダーと、前記シリンダーを車体側開口部に取り付ける中空状のブラケットと、を有し、前記ノズルカバーは、該ノズルカバーの後面側に設けられた係合手段と、前記ピストンの先端部に設けられた係合手段によって前記車体側開口部の外側から前記ピストンに取り付けられ、前記ノズルカバーの後面に突設されたリブに形成された位置決め縁が、対向する前記ブラケット内周の位置決め壁に当接して位置決めされるヘッドランプクリーナーであって、前記ノズルカバーの位置決め縁と前記ブラケットの位置決め壁を共に前記ピストンの進退方向に対して傾斜させ、該傾斜方向を車体側開口部の内側から外側方向に向けて末広がりにした。   A piston having a spray nozzle for cleaning liquid and a nozzle cover covering the spray nozzle from the front, a cylinder that supports the piston so as to be able to move forward and backward, and a hollow bracket that attaches the cylinder to a vehicle body side opening. The nozzle cover is attached to the piston from the outside of the opening on the vehicle body side by engagement means provided on the rear surface side of the nozzle cover and engagement means provided at the tip of the piston; A headlamp cleaner in which a positioning edge formed on a rib projecting from a rear surface of the nozzle cover is positioned in contact with an opposing positioning wall on the inner periphery of the bracket, and the positioning edge of the nozzle cover and the positioning edge Both bracket positioning walls are tilted with respect to the piston's advancing / retreating direction, and the tilting direction is inside the vehicle body side opening. It was flared outward direction.

また、ノズルカバーの位置決め縁とブラケットの位置決め壁との間には、微小隙間を設け、該微小隙間を、ピストンの進退方向に対して大きく離間させ、かつ位置決め縁と位置決め壁との対向方向に対して小さく離間させることにより、位置決め縁と位置決め壁が対向する方向に対する隙間の離間距離を、ピストン進退方向に対する隙間の離間距離に比べて小さくすることが望ましい。   In addition, a minute gap is provided between the positioning edge of the nozzle cover and the positioning wall of the bracket, the minute gap is greatly separated from the advancing / retreating direction of the piston, and in a direction opposite to the positioning edge and the positioning wall. On the other hand, it is desirable that the gap separation distance in the direction in which the positioning edge and the positioning wall face each other is made smaller than the gap separation distance in the piston advancing / retreating direction.

また、ノズルカバーの位置決め縁と前記ブラケットの位置決め壁との間に形成する微小隙間は、前記ノズルカバーの位置決め縁と前記ブラケットの位置決め壁を、前記ピストンの進退方向に対して角度４５度未満、かつブラケット内側から車体側開口部外側に向かって末広がりの方向に傾斜させて形成することが望ましい。   In addition, the minute gap formed between the positioning edge of the nozzle cover and the positioning wall of the bracket is less than 45 degrees with respect to the positioning edge of the nozzle cover and the positioning wall of the bracket with respect to the advancing and retreating direction of the piston. In addition, it is desirable to incline in the direction of diverging from the inside of the bracket toward the outside of the vehicle body side opening.

ノズルカバー側の位置決め縁とブラケット側の位置決め壁間に形成する微小隙間が従来よりも小さく形成されてノズルカバーのガタつきによる振動と騒音が低減される。また、ノズルカバーを車体側開口部の前から挿入して固定するために十分な隙間が確保される。   A minute gap formed between the positioning edge on the nozzle cover side and the positioning wall on the bracket side is formed smaller than the conventional one, and vibration and noise due to rattling of the nozzle cover are reduced. Further, a sufficient gap is secured for inserting and fixing the nozzle cover from the front of the vehicle body side opening.

次に、本発明の好適な実施形態を説明する。   Next, a preferred embodiment of the present invention will be described.

図１〜図４は、本発明の実施例を示すもので、図１は、ヘッドランプクリーナーの構造を示す分解斜視図、図２は、ノズルカバーが噴射位置に保持されたヘッドランプクリーナーの縦断面図、図３は、ノズルカバーが収納位置に保持されたヘッドランプクリーナーの縦断面図、図４は、ノズルカバーとブラケット、及びノズルカバーとバンパーとの間に形成される微小隙間を示す図３の拡大部分断面図である。   1 to 4 show an embodiment of the present invention, FIG. 1 is an exploded perspective view showing the structure of a headlamp cleaner, and FIG. 2 is a longitudinal section of the headlamp cleaner in which a nozzle cover is held at an ejection position. FIG. 3 is a longitudinal sectional view of the headlamp cleaner in which the nozzle cover is held in the storage position, and FIG. 4 is a view showing a minute gap formed between the nozzle cover and the bracket, and the nozzle cover and the bumper. 3 is an enlarged partial cross-sectional view of FIG.

図１に示す通り、本実施例のヘッドランプクリーナー１は、シリンダ２と、シリンダ２を支持するピストン３と、バンパー７（図示していないが、ヘッドランプの前面レンズ等、車体の他の部分でも良い。）に設けられた車体側開口部８にシリンダ２を取り付けるブラケット４と、ピストン３の先端に設けられた噴射ノズル５と、ノズルカバー６を備える。   As shown in FIG. 1, the headlamp cleaner 1 of this embodiment includes a cylinder 2, a piston 3 that supports the cylinder 2, and a bumper 7 (not shown, but other parts of the vehicle body such as the front lens of the headlamp. The bracket 4 for attaching the cylinder 2 to the vehicle body side opening 8 provided in FIG. 5, the injection nozzle 5 provided at the tip of the piston 3, and the nozzle cover 6 are provided.

ピストン３は、筒状に形成されたシリンダ２の内部に摺動自在に支持されて、シリンダ２とピストン３の中心軸Ｌ１の伸びる方向（図１〜図３のＤ１とＤ２方向、以下同じ）に沿って進退する。シリンダ２は、その先端がブラケット４の受け部４ａに挿入され、シリンダ側の係合突部２ａと受け部４ａ側の係合孔４ｂを介してブラケット４に取り付けられる。   The piston 3 is slidably supported inside a cylindrically formed cylinder 2 and extends in the direction in which the cylinder 2 and the central axis L1 of the piston 3 extend (D1 and D2 directions in FIGS. 1 to 3; the same applies hereinafter). Advancing and retreating along. The tip of the cylinder 2 is inserted into the receiving portion 4a of the bracket 4, and is attached to the bracket 4 via the engaging protrusion 2a on the cylinder side and the engaging hole 4b on the receiving portion 4a side.

ブラケット４は、中空状に形成され、車両側開口部８の内形と略同一外形を有する先端開口部４ｃと、先端開口部４ｃの側縁に設けられた可動爪４ｄと、二重爪４ｅを有する。可動爪４ｄと二重爪４ｅは、被取付部であるバンパー７の面方向に沿って、中心軸Ｌ１を挟んで図２の略左右方向に突設される。可動爪４ｄは、二本のスリット４ｆによって舌片状に形成されて、中心軸Ｌ１に向かって内向き（図２の左方向）に可動する。二重爪４ｅの凹み４ｇの幅は、バンパー７の厚みと略同一である。ブラケット４は、可動爪４ｄを中心軸Ｌ１に向かって内側に曲げた状態でその先端部を車体側開口部８に挿入し、二重爪４ｅを車体側開口部８の縁部に係合させ、可動爪４ｄを戻すことでシリンダ２と共にバンパー７に固定される。   The bracket 4 is formed in a hollow shape and has a front end opening 4c having substantially the same outer shape as the inner shape of the vehicle side opening 8, a movable claw 4d provided at a side edge of the front end opening 4c, and a double claw 4e. Have The movable claw 4d and the double claw 4e are provided so as to project substantially in the left-right direction in FIG. 2 across the central axis L1 along the surface direction of the bumper 7 which is the attached portion. The movable claw 4d is formed in a tongue shape by the two slits 4f, and moves inwardly (to the left in FIG. 2) toward the central axis L1. The width of the recess 4g of the double claw 4e is substantially the same as the thickness of the bumper 7. The bracket 4 is inserted into the vehicle body side opening 8 with the tip of the movable claw 4d bent inward toward the central axis L1, and the double claw 4e is engaged with the edge of the vehicle body side opening 8. The movable claw 4d is returned to be fixed to the bumper 7 together with the cylinder 2.

ピストン３は、シリンダ２の内部に設けられたバネ（図示せず）によって車体内側方向（Ｄ１方向）に付勢され、図３に示す格納位置に保持される。ピストン３の先端側には、チェックバルブ９とピストン３から図２の左右方向（以降は単に左右方向という）に突出して配置された一対の噴射ノズル５が設けられる。ピストン３の内側には、シリンダ２からピストン３の基端側に供給された洗浄液をピストン３の先端側に供給する洗浄液供給管（図示せず）が設けられ、該洗浄液供給管は、チェックバルブ９を介して噴射ノズル５に接続される。   The piston 3 is urged in the vehicle body inner direction (D1 direction) by a spring (not shown) provided in the cylinder 2 and is held in the retracted position shown in FIG. On the tip end side of the piston 3, a check valve 9 and a pair of injection nozzles 5 are provided so as to protrude from the piston 3 in the left and right direction in FIG. A cleaning liquid supply pipe (not shown) for supplying the cleaning liquid supplied from the cylinder 2 to the proximal end side of the piston 3 to the distal end side of the piston 3 is provided inside the piston 3, and the cleaning liquid supply pipe is provided as a check valve. 9 is connected to the injection nozzle 5.

洗浄液が供給されて洗浄液供給管内の圧力が上昇すると、ピストン３は、図示しないバネの力に抗して車両外側方向（Ｄ２方向）に突出し、図２に示す噴射位置まで移動する。洗浄液供給管内の圧力は、ピストン３が噴射位置に移動すると更に上昇し、前記圧力がチェックバルブ９の耐圧を超えると洗浄液が噴射ノズル５からヘッドランプの前面レンズ（図示せず）に向かって噴射される。   When the cleaning liquid is supplied and the pressure in the cleaning liquid supply pipe rises, the piston 3 protrudes in the vehicle outer direction (D2 direction) against the force of a spring (not shown) and moves to the injection position shown in FIG. The pressure in the cleaning liquid supply pipe further increases when the piston 3 moves to the injection position, and when the pressure exceeds the pressure resistance of the check valve 9, the cleaning liquid is injected from the injection nozzle 5 toward the front lens (not shown) of the headlamp. Is done.

ノズルカバー６は、カバー本体１０、カバー本体１０の後面に突設された略円筒状の受け部１５、左右位置決めリブ（１１，１２）、上下位置決めリブ（１３，１４）を有する。   The nozzle cover 6 includes a cover body 10, a substantially cylindrical receiving portion 15 projecting from the rear surface of the cover body 10, left and right positioning ribs (11 and 12), and upper and lower positioning ribs (13 and 14).

ピストン３の先端には、突条１７を備えた係合軸部１６と係合爪（２０，２１）を有し係合軸部の両側に突出する一対のカバー取付片（１８，１９）が設けられる。   At the tip of the piston 3, there are a pair of cover mounting pieces (18, 19) having an engaging shaft portion 16 provided with a protrusion 17 and engaging claws (20, 21) and projecting on both sides of the engaging shaft portion. Provided.

受け部１５は、ピストン３側の突条１７を係合させる係合溝２２、カバー取付片（１８，１９）を係合させる係合溝（２３，２４）を有する。左右位置決めリブ（１１，１２）は、受け部１５を挟んで左右方向に伸びるリブであって、ピストン３側の係合爪（２０，２１）を係合させる係合孔（２５，２６）を有する（符号１６から２１が本願請求項のピストン側の係合手段を構成し、符号１５，２２〜２６がノズルカバー側の係合手段を構成する）。尚、ノズルカバー６には、係合爪（２０，２１）を設け、ピストン３に係合孔（２５，２６）を設けても良い。   The receiving part 15 has an engagement groove 22 for engaging the protrusion 17 on the piston 3 side, and an engagement groove (23, 24) for engaging the cover mounting piece (18, 19). The left and right positioning ribs (11, 12) are ribs extending in the left-right direction across the receiving portion 15, and have engaging holes (25, 26) for engaging the engaging claws (20, 21) on the piston 3 side. (Reference numerals 16 to 21 constitute the piston side engaging means of claims of the present application, and reference numerals 15, 22 to 26 constitute the nozzle cover side engaging means). The nozzle cover 6 may be provided with engaging claws (20, 21), and the piston 3 may be provided with engaging holes (25, 26).

ノズルカバー６は、係合軸部１６を受け部１５に挿入し、係合爪（２０，２１）と係合孔（２５，２６）を係合させることで、バンパー７の外側からピストン３の先端に固定される。ノズルカバー６は、ピストン３が格納位置に保持された際に、カバー本体１０が噴射ノズル５、車両側開口部８及びブラケット４の先端開口部４ｃを外側から覆い隠す。   The nozzle cover 6 is inserted into the receiving portion 15 of the engaging shaft portion 16 and engages the engaging claws (20, 21) with the engaging holes (25, 26). Fixed to the tip. In the nozzle cover 6, when the piston 3 is held in the retracted position, the cover body 10 covers the injection nozzle 5, the vehicle-side opening 8 and the tip opening 4 c of the bracket 4 from the outside.

ノズルカバー６の上下位置決めリブ（１３，１４）は、左右位置決めリブ（１１，１２）と直交かつ交差して、該リブ（１１，１２）の表裏に設けられる。   The vertical positioning ribs (13, 14) of the nozzle cover 6 are provided on the front and back of the ribs (11, 12) so as to be orthogonal to and intersect with the left and right positioning ribs (11, 12).

左右位置決めリブ（１１，１２）は、左右両端に左右位置決め縁（２７，２８）を有し、上下位置決めリブ（１３，１４）は、上位置決め縁（２９，３０）と下位置決め縁（３１，３２）をそれぞれ有する。   The left and right positioning ribs (11, 12) have left and right positioning edges (27, 28) at the left and right ends, and the upper and lower positioning ribs (13, 14) have an upper positioning edge (29, 30) and a lower positioning edge (31, 28). 32) respectively.

位置決め縁（２７〜３２）は、ピストン３の進退方向、即ち中心軸Ｌ１の伸びる方向に対して傾斜させる。傾斜方向は、ブラケット４の内側からバンパー７の外側方向（図２のＤ２方向）に末広がりに傾斜させる。図２に示す角度θ１とθ２は、ピストン３の進退方向に対する左右位置決め縁（２７，２８）の傾斜角であるが、θ１とθ２は、共に４５°未満にすることが望ましい（図示しないピストン３の進退方向に対する上下位置決め縁の傾斜角も同様）。   The positioning edges (27 to 32) are inclined with respect to the forward / backward direction of the piston 3, that is, the direction in which the central axis L1 extends. The inclination direction is inclined from the inner side of the bracket 4 toward the outer side of the bumper 7 (direction D2 in FIG. 2). The angles θ1 and θ2 shown in FIG. 2 are the inclination angles of the left and right positioning edges (27, 28) with respect to the advancing and retreating direction of the piston 3, but it is desirable that both θ1 and θ2 be less than 45 ° (the piston 3 not shown). The tilt angle of the vertical positioning edge with respect to the forward / backward direction is the same)

一方、ブラケット４の先端開口部４ｃには、噴射ノズル５の格納時（図３を参照）に左右位置決め縁（２７，２８）と対向する左右位置決め壁（３３，３４）と、上下位置決め縁（２９〜３２）に対向する上下位置決め壁（図示せず）を設ける。図２に示す角度θ３とθ４は、ピストン３の進退方向に対する左右位置決め壁（３３，３４）の傾斜角であるが、θ３とθ４は、共に４５°未満にすることが望ましく、θ１＝θ３，θ２＝θ４として左右位置決め壁（３３，３４）を左右位置決め縁（２７，２８）と平行にする。（図示しないピストン３の進退方向に対する上下位置決め縁の傾斜角も同様）。   On the other hand, the front end opening 4c of the bracket 4 has left and right positioning walls (33, 34) that face the left and right positioning edges (27, 28) when the injection nozzle 5 is stored (see FIG. 3), and upper and lower positioning edges ( 29-32) and an upper and lower positioning wall (not shown) are provided. The angles θ3 and θ4 shown in FIG. 2 are the inclination angles of the left and right positioning walls (33, 34) with respect to the advancing / retreating direction of the piston 3, but both θ3 and θ4 are preferably less than 45 °, and θ1 = θ3 The left and right positioning walls (33, 34) are made parallel to the left and right positioning edges (27, 28) with θ2 = θ4. (The same applies to the inclination angle of the vertical positioning edge with respect to the forward / backward direction of the piston 3 (not shown)).

このようにすると、左右位置決めリブ（２７，２８）の後端部の幅は、ブラケット４の先端開口部４ｃの幅より狭く形成されるため、左右位置決めリブ（２７，２８）の後端部とブラケット４の先端開口部４ｃの製造誤差等が従来より大きくても、ブラケット４の先端開口部４ｃには、バンパー７の外側からノズルカバー６を挿入出来、ピストン３の先端に装着できる。   In this case, since the width of the rear end portion of the left and right positioning ribs (27, 28) is formed to be narrower than the width of the front end opening 4c of the bracket 4, the rear end portion of the left and right positioning ribs (27, 28) The nozzle cover 6 can be inserted into the front end opening 4c of the bracket 4 from the outside of the bumper 7 and attached to the front end of the piston 3 even if the manufacturing error of the front end opening 4c of the bracket 4 is larger than the conventional one.

噴射ノズル５の格納時（図３を参照）におけるノズルカバー６の上下左右位置決め縁（２７〜３２）は、ブラケット４側の上下左右位置決め壁（３３，３４の他図示せず）から微小隙間ｄ１（図４を参照）だけ離間させた状態で配置される。また、カバー本体１０の周縁部には、後方のバンパー７に向かって突出した前後位置決め縁３５が形成され、前後位置決め縁３５は、バンパー７の前面７ａから微小隙間ｄ２だけ離間した状態で配置される。   When the injection nozzle 5 is stored (see FIG. 3), the vertical and horizontal positioning edges (27 to 32) of the nozzle cover 6 are minute gaps d1 from the vertical and horizontal positioning walls (33, 34 other than shown) on the bracket 4 side. (See FIG. 4). Further, a front / rear positioning edge 35 protruding toward the rear bumper 7 is formed on the peripheral edge of the cover body 10, and the front / rear positioning edge 35 is disposed in a state of being separated from the front surface 7 a of the bumper 7 by a minute gap d 2. The

ノズルカバー６は、上下左右位置決め縁（２７〜３２）が車両の走行中等にブラケット４側の上下左右位置決め壁（３３，３４の他図示せず）に当接することで上下左右に位置決めされ、前後位置決め縁３５がバンパー７の前面７ａに当接することで前後に位置決めされる。微小隙間ｄ１，ｄ２を設けず、ノズルカバー６とブラケット４、ノズルカバー６とバンパー７を常に当接させた場合には、低温環境下でヘッドランプクリーナー１を使用する際に当接部分に入り込んだ水分が凍結してヘッドランプクリーナー１が作動しなくなるおそれがあるため、微小隙間ｄ１，ｄ２を設けることが望ましい。尚、カバー本体１０は、ブラケット４の先端開口部４ｃと車両側開口部８より大きいため、微小隙間ｄ１の分だけカバー本体が上下左右に動いても、先端開口部４ｃの内部は露出しない。   The nozzle cover 6 is positioned vertically and horizontally by the vertical and horizontal positioning edges (27 to 32) coming into contact with vertical and horizontal positioning walls (33, 34, not shown) on the bracket 4 side while the vehicle is running. The positioning edge 35 is positioned forward and backward by contacting the front surface 7 a of the bumper 7. When the nozzle cover 6 and the bracket 4 and the nozzle cover 6 and the bumper 7 are always in contact without providing the minute gaps d1 and d2, the head lamp cleaner 1 enters the contact portion when using the headlamp cleaner 1 in a low temperature environment. Since the moisture may freeze and the headlamp cleaner 1 may not operate, it is desirable to provide the minute gaps d1 and d2. Since the cover main body 10 is larger than the front end opening 4c of the bracket 4 and the vehicle side opening 8, the inside of the front end opening 4c is not exposed even if the cover main body moves up and down and left and right by the minute gap d1.

また、ノズルカバー６の後端部とブラケット４の先端開口部４ｃの製造誤差等が従来より大きくてもノズルカバー６の後端部を先端開口部に挿入出来るため、ノズルカバー６とブラケット４との間には、微小隙間ｄ１を従来より小さく形成出来る。微小隙間ｄ１をより小さく形成した場合には、ノズルカバー６側の上下左右位置決め縁（２７〜３２）とブラケット４側の上下左右位置決め壁（３３，３４の他図示せず）が当接する際に発生する騒音と振動を従来より低減出来る。   Further, since the rear end portion of the nozzle cover 6 can be inserted into the front end opening portion even if the manufacturing error of the rear end portion of the nozzle cover 6 and the front end opening portion 4c of the bracket 4 is larger than before, the nozzle cover 6 and the bracket 4 In the meantime, the minute gap d1 can be formed smaller than in the prior art. In the case where the minute gap d1 is formed to be smaller, the vertical and horizontal positioning edges (27 to 32) on the nozzle cover 6 side and the vertical and horizontal positioning walls (33 and 34, not shown) on the bracket 4 side come into contact. The generated noise and vibration can be reduced compared to the conventional one.

尚、図４に示す符号ｄ３は、ノズルカバー６側の上下左右位置決め縁（２７〜３２）とブラケット４側の上下左右位置決め壁（３３，３４の他図示せず）との間に形成されるピストン３の進退方向（図１〜３のＤ１、Ｄ２方向）の微小隙間を示す。微小隙間ｄ３は、ノズルカバー６側の上下左右位置決め縁（２７〜３２）とブラケット４側の上下左右位置決め壁（３３，３４の他図示せず）が対向する方向の微小隙間ｄ１よりも大きく形成されることが望ましい。   4 is formed between the up / down / left / right positioning edges (27 to 32) on the nozzle cover 6 side and the up / down / left / right positioning walls (other than 33 and 34) on the bracket 4 side. A minute gap in the forward / backward direction of piston 3 (directions D1 and D2 in FIGS. 1 to 3) is shown. The minute gap d3 is formed larger than the minute gap d1 in the direction in which the vertical and horizontal positioning edges (27 to 32) on the nozzle cover 6 side and the vertical and horizontal left and right positioning walls (33, 34, not shown) on the bracket 4 face each other. It is desirable that

微小隙間ｄ３は、ノズルカバー６側の係合孔（２５，２６）をピストン３側の係合爪（２０，２１）に係合させるために必要なマージンとなるため、係合に十分な程度に大きく形成されることが望ましい。一方、微小隙間ｄ１は、大きく形成された場合、ノズルカバー６側の上下左右位置決め縁（２７〜３２）とブラケット４側の上下左右位置決め壁（３３，３４の他図示せず）が当接する際に発生する騒音と振動が大きくなるため、出来るだけ小さく形成されることが望ましい。   The minute gap d3 is a margin sufficient for engaging the engagement holes (25, 26) on the nozzle cover 6 side with the engagement claws (20, 21) on the piston 3 side, and is sufficiently large for engagement. It is desirable to be formed large. On the other hand, when the minute gap d1 is formed to be large, the vertical / horizontal positioning edges (27 to 32) on the nozzle cover 6 side and the vertical / horizontal positioning walls (33, 34, not shown) on the bracket 4 side abut. Therefore, it is desirable to make it as small as possible.

ピストン３の進退方向（図３のＤ１、Ｄ２方向）に対するノズルカバー６側の左右位置決め縁（２７，２８）、図示しない上下位置決め縁、及びブラケット４側の上下左右位置決め壁（３３，３４の他図示せず）の傾斜角（上記θ１〜θ４）をそれぞれ４５°未満にした場合には、ｄ１＜ｄ３となり、ノズルカバー６をピストン３に取り付けるのに十分なマージンｄ３を確保しつつ、微小隙間ｄ１を小さく出来るため、より望ましいと言える。   Left and right positioning edges (27, 28) on the nozzle cover 6 side with respect to the advancing / retreating direction of the piston 3 (D1 and D2 directions in FIG. 3), vertical positioning edges (not shown), and vertical and horizontal positioning walls (33, 34) on the bracket 4 side When the inclination angles (not shown) of θ1 to θ4 are each less than 45 °, d1 <d3, and a minute gap is provided while ensuring a sufficient margin d3 for attaching the nozzle cover 6 to the piston 3. Since d1 can be reduced, it can be said that it is more desirable.

ヘッドランプクリーナーの構造を示す分解斜視図。The disassembled perspective view which shows the structure of a headlamp cleaner. ノズルカバーが噴射位置に保持されたヘッドランプクリーナーの縦断面図。The longitudinal cross-sectional view of the headlamp cleaner by which the nozzle cover was hold | maintained at the injection position. ノズルカバーが収納位置に保持されたヘッドランプクリーナーの縦断面図。The longitudinal cross-sectional view of the headlamp cleaner with the nozzle cover held in the storage position. ノズルカバーとブラケット、及びノズルカバーとバンパーとの間に形成される微小隙間を示す図３の拡大部分断面図。FIG. 4 is an enlarged partial cross-sectional view of FIG. 3 illustrating a minute gap formed between the nozzle cover and the bracket, and the nozzle cover and the bumper.

符号の説明Explanation of symbols

１ ヘッドランプクリーナー
２ シリンダー
３ ピストン
４ ブラケット
５ 噴射ノズル
６ ノズルカバー
８ 車体側開口部
１０ カバー本体
１１，１２ 左右位置決めリブ
１３，１４ 上下位置決めリブ
１５ 受け部
１６ 係合軸部１６
１７ 突条
１８，１９ カバー取付片
２０，２１ 係合爪
２３，２４ 係合溝
２５，２６ 係合孔
２７，２８ 左右位置決め縁
２９〜３２ 上下位置決め縁
３３，３４ 左右位置決め壁
Ｄ１，Ｄ２ ピストン３の進退方向
ｄ１ 上下左右位置決め縁と対応する位置決め壁との離間距離を示す微小隙間
ｄ３ 上下左右位置決め縁と対応する位置決め壁との間に形成されるピストン３の進退方向の微小隙間
θ１，θ２ ピストン３の進退方向に対する左右位置決め縁の傾斜角
θ３，θ４ ピストン３の進退方向に対する左右位置決め壁の傾斜角 DESCRIPTION OF SYMBOLS 1 Head lamp cleaner 2 Cylinder 3 Piston 4 Bracket 5 Injection nozzle 6 Nozzle cover 8 Car body side opening part 10 Cover main body 11,12 Left-right positioning rib 13,14 Vertical positioning rib 15 Receiving part 16 Engagement shaft part 16
17 Projection 18, 19 Cover mounting piece 20, 21 Engagement claw 23, 24 Engagement groove 25, 26 Engagement hole 27, 28 Left-right positioning edge 29-32 Vertical positioning edge 33, 34 Left-right positioning wall D1, D2 Piston 3 Forward and backward direction d1 Minute gap indicating the distance between the vertical and horizontal positioning edges and the corresponding positioning wall d3 Fine gap in the forward and backward direction of the piston 3 formed between the vertical and horizontal positioning edges and the corresponding positioning wall θ1, θ2 Piston Inclination angle of left / right positioning edge with respect to 3 forward / backward direction θ3, θ4 Inclination angle of left / right positioning wall with respect to forward / backward direction of piston 3

Claims (3)

洗浄液の噴射ノズルと該噴射ノズルを前方から覆うノズルカバーとを有するピストンと、前記ピストンを前後に進退動作可能に支持するシリンダーと、前記シリンダーを車体側開口部に取り付ける中空状のブラケットと、を有し、
前記ノズルカバーは、該ノズルカバーの後面側に設けられた係合手段と、前記ピストンの先端部に設けられた係合手段によって前記車体側開口部の外側から前記ピストンに取り付けられ、
前記ノズルカバーの後面に突設されたリブに形成された位置決め縁が、対向する前記ブラケット内周の位置決め壁に当接して位置決めされるヘッドランプクリーナーであって、
前記ノズルカバーの位置決め縁と前記ブラケットの位置決め壁は、共に前記ピストンの進退方向に対して傾斜すると共に、該傾斜方向が、車体側開口部の内側から外側方向に向けて末広がりである特徴とするヘッドランプクリーナー。 A piston having a spray nozzle for cleaning liquid and a nozzle cover covering the spray nozzle from the front, a cylinder that supports the piston so as to be able to move forward and backward, and a hollow bracket that attaches the cylinder to a vehicle body side opening. Have
The nozzle cover is attached to the piston from the outside of the opening on the vehicle body side by engagement means provided on the rear surface side of the nozzle cover and engagement means provided at the tip of the piston.
A headlamp cleaner in which a positioning edge formed on a rib projecting from the rear surface of the nozzle cover is positioned in contact with a positioning wall on the opposite inner periphery of the bracket,
Both the positioning edge of the nozzle cover and the positioning wall of the bracket are inclined with respect to the advancing / retreating direction of the piston, and the inclined direction is divergent from the inner side to the outer side of the vehicle body side opening. Headlamp cleaner. 前記ノズルカバーの位置決め縁と前記ブラケットの位置決め壁との間には、微小隙間が設けられ、該微小隙間は、前記ピストンの進退方向に大きく離間し、かつ前記位置決め縁と位置決め壁が対向する方向に対して小さく離間することを特徴とする、請求項１に記載のヘッドランプクリーナー。   A minute gap is provided between the positioning edge of the nozzle cover and the positioning wall of the bracket. The minute gap is greatly separated in the advancing / retreating direction of the piston, and the positioning edge and the positioning wall face each other. The headlamp cleaner according to claim 1, wherein the headlamp cleaner is spaced apart by a small distance. 前記ノズルカバーの位置決め縁と前記ブラケットの位置決め壁は、前記ピストンの進退方向に対して角度４５°未満で傾斜することを特徴とする、請求項２に記載のヘッドランプクリーナー。   The headlamp cleaner according to claim 2, wherein the positioning edge of the nozzle cover and the positioning wall of the bracket are inclined at an angle of less than 45 ° with respect to the advancing / retreating direction of the piston.
JP2008324255A 2008-12-19 2008-12-19 Headlamp cleaner Expired - Fee Related JP5173785B2 (en)

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