JP2012204111A - Housing of vehicular lamp - Google Patents

Housing of vehicular lamp Download PDF

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Publication number
JP2012204111A
JP2012204111A JP2011066877A JP2011066877A JP2012204111A JP 2012204111 A JP2012204111 A JP 2012204111A JP 2011066877 A JP2011066877 A JP 2011066877A JP 2011066877 A JP2011066877 A JP 2011066877A JP 2012204111 A JP2012204111 A JP 2012204111A
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housing
groove
gasket
enlarged
engagement groove
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Kenzo Kikuchi
賢三 菊地
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Stanley Electric Co Ltd
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Stanley Electric Co Ltd
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  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

PROBLEM TO BE SOLVED: To drain water inside a lamp chamber while facilitating incorporation of a gasket.SOLUTION: In the housing 1, a front surface is formed in an open shape, and an engaging groove 11 engaged with a lens 2 for covering the opening with a gasket G pinched is fitted at a peripheral edge of the opening. An enlarged groove part 12 formed deeper to a rear side and wider to an upper side than other parts of the engaging groove 11 is provided at a part positioned at a lower side of the housing 1 in the engaging groove 11. A communication hole 12a is set in protrusion for communicating with an outside of the housing 1 at a back end part placed further toward a rear side than other parts of the engaging groove 11 out of an underside of the enlarged groove part 12.

Description

本発明は、車両用灯具のハウジングに関する。   The present invention relates to a housing for a vehicular lamp.

従来、自動車用ヘッドライトなどの車両用灯具では、前面が開口したハウジングと、ハウジングの前面開口を覆うレンズとによって灯室が形成されている。この灯室は、ハウジングとレンズとが互いの周縁でガスケットを挟んで嵌合されることによって、シールされている。   Conventionally, in a vehicular lamp such as a headlight for an automobile, a lamp chamber is formed by a housing whose front surface is open and a lens that covers the front opening of the housing. The lamp chamber is sealed by fitting the housing and the lens with a gasket around the periphery of each other.

ところで、車両用灯具においては、各部の隙間を通じて灯室内に水が入り込んだり、灯室内で結露したりすることがあるため、灯室内の水を排出するための水抜き構造が設けられている。   By the way, in the vehicular lamp, water may enter the lamp chamber through the gaps between the respective parts, or condensation may occur in the lamp chamber. Therefore, a drainage structure for discharging the water in the lamp chamber is provided.

この水抜き構造として、例えば特許文献1に記載のものでは、図8及び図9に示すように、ガスケット60を挟んでレンズ70の係合凸部71と係合するハウジング80の係合溝81に灯室外と連通する排水路を設けるとともに、ガスケット60の一部を切り欠いて当該排水路と灯室内とを連通させている。係合溝81に設けた排水路は、係合溝81の一部を深くした深溝部82と、深溝部82を上側溝部分82a及び下側溝部分82bに仕切るリブ83と、リブ83の一部を切り欠いて上側溝部分82a及び下側溝部分82bを連通させる連通孔84と、下側溝部分82bを灯室外に連通させる排出孔85とから構成されている。また、ガスケット60には、レンズ70の係合凸部71と接触しない上端部を切り欠いた切欠部61が形成されている。
このような水抜き構造によれば、灯室内の水は、ガスケット60の切欠部61から深溝部82の上側溝部分82aに流入し、連通孔84を通じて下側溝部分82bに流れ落ちた後に、排出孔85から灯室外に排出される。
As this water draining structure, for example, the one described in Patent Document 1, as shown in FIGS. 8 and 9, the engaging groove 81 of the housing 80 that engages with the engaging convex part 71 of the lens 70 with the gasket 60 interposed therebetween. Is provided with a drainage channel communicating with the outside of the lamp chamber, and a part of the gasket 60 is cut away to allow the drainage channel and the lamp chamber to communicate with each other. The drainage channel provided in the engagement groove 81 includes a deep groove part 82 in which a part of the engagement groove 81 is deepened, a rib 83 that partitions the deep groove part 82 into an upper groove part 82a and a lower groove part 82b, and a part of the rib 83. Is formed with a communication hole 84 that allows the upper groove portion 82a and the lower groove portion 82b to communicate with each other, and a discharge hole 85 that allows the lower groove portion 82b to communicate with the outside of the lamp chamber. In addition, the gasket 60 is formed with a notch 61 in which an upper end portion that is not in contact with the engagement convex portion 71 of the lens 70 is notched.
According to such a drainage structure, the water in the lamp chamber flows into the upper groove portion 82a of the deep groove portion 82 from the cutout portion 61 of the gasket 60, and flows down to the lower groove portion 82b through the communication hole 84 before being discharged into the discharge hole. From 85, it is discharged out of the lamp chamber.

特許第3648426号公報Japanese Patent No. 3648426

しかしながら、上記の水抜き構造では、ハウジング80に排水路を設けただけでは足りず、ガスケット60にも切欠部61を形成するとともに、当該切欠部61をハウジング80の深溝部82の位置に合わせつつガスケット60を組み込まなければならない。そのため、組立時におけるガスケット60の組み込み作業が煩雑になり、組立時間や組立コストが増加するばかりか、これに伴ってメンテナンス性も悪化してしまう。   However, in the water drainage structure described above, it is not sufficient to provide the drainage channel in the housing 80, and the notch 61 is formed in the gasket 60 and the notch 61 is aligned with the deep groove 82 of the housing 80. A gasket 60 must be incorporated. For this reason, the assembling work of the gasket 60 at the time of assembling becomes complicated, and the assembling time and assembling cost are increased, and the maintainability is also deteriorated accordingly.

本発明は、上記事情を鑑みてなされたもので、ガスケットの組み込みを容易にしつつ灯室内の水を排出することができる車両用灯具のハウジングの提供を課題とする。   This invention is made | formed in view of the said situation, and makes it a subject to provide the housing | casing of the vehicle lamp which can discharge | emit the water in a lamp chamber, making the assembly of a gasket easy.

上記課題を解決するために、請求項1に記載の発明は、
前面が開口した形状に形成されるとともに、この開口を覆うレンズがガスケットを挟みつつ係合される係合溝を開口の周縁に有する車両用灯具のハウジングにおいて、
前記係合溝のうち、当該ハウジングの下部に位置する部分には、当該係合溝の他の部分よりも後方へ深く且つ上側へ幅広に形成された拡大溝部が設けられ、
前記拡大溝部の下面のうち、前記係合溝の他の部分よりも後方に位置する後端部分には、当該ハウジングの外部と連通する連通孔が穿設されていることを特徴とする。
In order to solve the above-mentioned problem, the invention described in claim 1
In a vehicle lamp housing having a front surface formed in an opening shape and an engagement groove with which a lens covering the opening is engaged while sandwiching a gasket at the periphery of the opening,
Of the engaging groove, a portion located in the lower portion of the housing is provided with an enlarged groove portion formed deeper rearward and wider than the other portion of the engaging groove,
A communication hole communicating with the outside of the housing is formed in a rear end portion located behind the other portion of the engagement groove in the lower surface of the enlarged groove portion.

請求項2に記載の発明は、請求項1に記載の車両用灯具のハウジングにおいて、
前記拡大溝部のうち、前記係合溝の他の部分よりも上側及び後側に位置する部分には、前記係合溝の内部に配置される前記ガスケットの脱落を防止するためのリブが、前記係合溝の延在方向に沿って当該拡大溝部を仕切るように立設されていることを特徴とする。
According to a second aspect of the present invention, in the vehicle lamp housing of the first aspect,
Of the enlarged groove portion, ribs for preventing the gasket arranged inside the engagement groove from falling off are located on the upper side and the rear side of the other part of the engagement groove. It is erected so as to partition the enlarged groove portion along the extending direction of the engaging groove.

本発明によれば、ハウジングの開口の周縁に設けられた係合溝には、ハウジングの下部に位置する部分に、当該係合溝の他の部分よりも後方へ深く且つ上側へ幅広に形成された拡大溝部が設けられており、この拡大溝部の下面のうち、係合溝の他の部分よりも後方に位置する後端部分には、ハウジングの外部と連通する連通孔が穿設されているので、係合溝の内部に配置されたガスケットを挟むように当該係合溝にレンズが係合された状態であっても、拡大溝部の上側部分及び後側部分と連通孔とを通じて、ハウジング及びレンズで形成される灯室の内部が外部と連通される。したがって、ガスケットの加工や位置合わせを必要とした従来に比べてガスケットの組み込みを容易にしつつ、拡大溝部と連通孔とを通じて灯室内の水を灯室外へ排出することができる。   According to the present invention, the engagement groove provided at the peripheral edge of the opening of the housing is formed deeper in the rear than the other part of the engagement groove and wider in the upper part in the portion located in the lower part of the housing. An enlarged groove portion is provided, and a communication hole that communicates with the outside of the housing is formed in a rear end portion of the lower surface of the enlarged groove portion located behind the other portion of the engagement groove. Therefore, even in a state where the lens is engaged with the engagement groove so as to sandwich the gasket disposed inside the engagement groove, the housing and the through-hole are connected through the upper portion and the rear portion of the enlarged groove portion and the communication hole. The interior of the lamp chamber formed by the lens communicates with the outside. Therefore, water in the lamp chamber can be discharged out of the lamp chamber through the enlarged groove portion and the communication hole while facilitating the incorporation of the gasket as compared with the conventional case that requires processing and positioning of the gasket.

実施形態におけるハウジングの正面図である。It is a front view of the housing in an embodiment. 実施形態におけるハウジングの斜視図である。It is a perspective view of the housing in an embodiment. 図1のII−II線での断面図である。It is sectional drawing in the II-II line of FIG. 図2のIII部を拡大した図である。It is the figure which expanded the III section of FIG. 図3のIV部を拡大した図である。It is the figure which expanded the IV section of FIG. 実施形態における拡大溝部に設けられたリブを示す正面図である。It is a front view which shows the rib provided in the expansion groove part in embodiment. 実施形態における拡大溝部に設けられたリブを示す断面図である。It is sectional drawing which shows the rib provided in the expansion groove part in embodiment. 従来の車両用灯具における水抜き構造を示す分解斜視図である。It is a disassembled perspective view which shows the water draining structure in the conventional vehicle lamp. 従来の車両用灯具における水抜き構造を示す断面図である。It is sectional drawing which shows the water draining structure in the conventional vehicle lamp.

以下、本発明の実施形態について、図面を参照して説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図1は、本実施形態における車両用灯具のハウジング(以下、単にハウジングという)1の正面図であり、図2は、ハウジング1の斜視図であり、図3は、図1のII−II線での断面図であり、図4は、図2のIII部を拡大した図であり、図5は、図3のIV部を拡大した図である。   FIG. 1 is a front view of a housing (hereinafter simply referred to as a housing) 1 of a vehicular lamp according to the present embodiment, FIG. 2 is a perspective view of the housing 1, and FIG. 3 is a line II-II in FIG. 4 is an enlarged view of the portion III in FIG. 2, and FIG. 5 is an enlarged view of the portion IV in FIG.

図1〜図3に示すように、ハウジング1は、前面が開口した形状に形成され、その内部が左右方向に沿って3つのランプ室10,…に区分されている。各ランプ室10では、ハウジング1底面に穿設されたバルブ挿入孔10aが連通されており、このバルブ挿入孔10aの周囲のハウジング1底面が、当該バルブ挿入孔10aに挿入されるバルブ(図示せず)の光を反射させる反射面10bとなっている。   As shown in FIGS. 1 to 3, the housing 1 is formed in a shape having an open front surface, and the interior thereof is divided into three lamp chambers 10 along the left-right direction. Each lamp chamber 10 communicates with a valve insertion hole 10a drilled in the bottom surface of the housing 1, and the bottom surface of the housing 1 around the valve insertion hole 10a is inserted into the valve insertion hole 10a (not shown). The reflection surface 10b reflects the light.

ハウジング1の前面開口の周縁には、前方に開口する断面コ字状の係合溝11が全周に亘って形成されている。この係合溝11は、内部にガスケットGが配置された状態で、ハウジング1の前面開口を覆うレンズ2の係合凸部21と係合される。そのため、係合溝11と係合凸部21とがガスケットGを挟みつつ係合されることにより、ハウジング1とレンズ2とで形成される灯室内がシールされる。   At the periphery of the front opening of the housing 1, an engagement groove 11 having a U-shaped cross section opening forward is formed over the entire circumference. The engagement groove 11 is engaged with the engagement convex portion 21 of the lens 2 covering the front opening of the housing 1 with the gasket G disposed therein. Therefore, when the engagement groove 11 and the engagement convex portion 21 are engaged with the gasket G interposed therebetween, the lamp chamber formed by the housing 1 and the lens 2 is sealed.

係合溝11のうち、ハウジング1の下部の左右2箇所に位置する部分には、係合溝11の他の部分よりも後方へ深く且つ上側へ幅広に形成された拡大溝部12,12が設けられている。また、この拡大溝部12の下面のうち、係合溝11の他の部分よりも後方に位置する後端部分には、ハウジング1の外部と連通する連通孔12aが穿設されている。   Enlarged groove portions 12 and 12 formed deeper to the rear and wider to the upper side than the other portions of the engagement groove 11 are provided in portions of the engagement groove 11 located at the left and right portions of the lower portion of the housing 1. It has been. In addition, a communication hole 12 a that communicates with the outside of the housing 1 is formed in a rear end portion located behind the other portion of the engagement groove 11 in the lower surface of the enlarged groove portion 12.

そのため、図4及び図5に示すように、係合溝11の内部にガスケットGが配置されて当該ガスケットGを挟むようにレンズ2が係合溝11に係合された状態、つまり係合溝11がガスケットGで塞がれた状態であっても、拡大溝部12の上側部分及び後側部分と、連通孔12aとを通じて、灯室の内部が外部と連通される。これにより、ハウジング1とレンズ2とを車両用灯具として組み立てた状態において、拡大溝部12と連通孔12aとを通じて灯室内の水を灯室外へ排出することができる。   Therefore, as shown in FIGS. 4 and 5, the gasket G is disposed in the engagement groove 11 and the lens 2 is engaged with the engagement groove 11 so as to sandwich the gasket G, that is, the engagement groove. Even when 11 is closed with the gasket G, the inside of the lamp chamber is communicated with the outside through the upper and rear portions of the enlarged groove portion 12 and the communication hole 12a. Thereby, in the state which assembled the housing 1 and the lens 2 as a vehicle lamp, the water in a lamp chamber can be discharged | emitted out of a lamp chamber through the expansion groove part 12 and the communicating hole 12a.

以上のように、ハウジング1によれば、係合溝11の内部に配置されたガスケットGを挟むように当該係合溝11にレンズ2が係合された状態であっても、拡大溝部12の上側部分及び後側部分と連通孔12aとを通じて、ハウジング1及びレンズ2で形成される灯室の内部が外部と連通される。したがって、ガスケットの加工や位置合わせを必要とした従来に比べてガスケットGの組み込みを容易にしつつ、拡大溝部12と連通孔12aとを通じて灯室内の水を灯室外へ排出することができる。このようにガスケットGの組み込みが容易になることにより、組立時間や組立コストを低減させ、ひいてはメンテナンス性を改善することができる。   As described above, according to the housing 1, even when the lens 2 is engaged with the engagement groove 11 so as to sandwich the gasket G disposed inside the engagement groove 11, The interior of the lamp chamber formed by the housing 1 and the lens 2 is communicated with the outside through the upper and rear portions and the communication hole 12a. Therefore, water in the lamp chamber can be discharged out of the lamp chamber through the enlarged groove portion 12 and the communication hole 12a while making it easier to incorporate the gasket G as compared with the conventional case that requires processing and positioning of the gasket. Since the gasket G can be easily assembled in this way, assembly time and assembly cost can be reduced, and as a result, maintainability can be improved.

なお、本発明を適用可能な実施形態は、上述した実施形態に限定されることなく、本発明の趣旨を逸脱しない範囲で適宜変更可能である。   The embodiments to which the present invention can be applied are not limited to the above-described embodiments, and can be appropriately changed without departing from the spirit of the present invention.

例えば、図6及び図7に示すように、拡大溝部12には、ガスケットGの当該拡大溝部12内への脱落を防止するためのリブ12bを設けてもよい。このリブ12bは、拡大溝部12のうち、係合溝11の他の部分よりも上側及び後側に位置する部分に、係合溝11の延在方向(略左右方向)に沿って拡大溝部12を仕切るように立設するのがよい。但し、当該リブ12bは、ガスケットGの脱落を防止することが可能であれば、拡大溝部12の上部及び/又は後部に部分的に設けることとしてもよい。このようなリブ12bを設けることにより、所望の排水性に応じて拡大溝部12を大きくした場合であっても、ガスケットGの脱落を防止することができる。   For example, as shown in FIGS. 6 and 7, the enlarged groove portion 12 may be provided with a rib 12 b for preventing the gasket G from dropping into the enlarged groove portion 12. The ribs 12b are formed in portions of the enlarged groove portion 12 located on the upper side and the rear side of the other portions of the engagement groove 11 along the extending direction (substantially left-right direction) of the engagement groove 11. It is better to stand so as to partition. However, the rib 12b may be partially provided on the upper part and / or the rear part of the enlarged groove part 12 as long as the gasket G can be prevented from falling off. By providing such a rib 12b, it is possible to prevent the gasket G from dropping even when the enlarged groove portion 12 is enlarged according to the desired drainage performance.

1 ハウジング
11 係合溝
12 拡大溝部
12a 連通孔
12b リブ
2 レンズ
21 係合凸部
G ガスケット
DESCRIPTION OF SYMBOLS 1 Housing 11 Engagement groove 12 Enlargement groove part 12a Communication hole 12b Rib 2 Lens 21 Engagement convex part G Gasket

Claims (2)

前面が開口した形状に形成されるとともに、この開口を覆うレンズがガスケットを挟みつつ係合される係合溝を開口の周縁に有する車両用灯具のハウジングにおいて、
前記係合溝のうち、当該ハウジングの下部に位置する部分には、当該係合溝の他の部分よりも後方へ深く且つ上側へ幅広に形成された拡大溝部が設けられ、
前記拡大溝部の下面のうち、前記係合溝の他の部分よりも後方に位置する後端部分には、当該ハウジングの外部と連通する連通孔が穿設されていることを特徴とする車両用灯具のハウジング。
In a vehicle lamp housing having a front surface formed in an opening shape and an engagement groove with which a lens covering the opening is engaged while sandwiching a gasket at the periphery of the opening,
Of the engaging groove, a portion located in the lower portion of the housing is provided with an enlarged groove portion formed deeper rearward and wider than the other portion of the engaging groove,
A communication hole that communicates with the outside of the housing is formed in a rear end portion located behind the other portion of the engagement groove in the lower surface of the enlarged groove portion. Light fixture housing.
前記拡大溝部のうち、前記係合溝の他の部分よりも上側及び後側に位置する部分には、前記係合溝の内部に配置される前記ガスケットの脱落を防止するためのリブが、前記係合溝の延在方向に沿って当該拡大溝部を仕切るように立設されていることを特徴とする請求項1に記載の車両用灯具のハウジング。   Of the enlarged groove portion, ribs for preventing the gasket arranged inside the engagement groove from falling off are located on the upper side and the rear side of the other part of the engagement groove. The vehicle lamp housing according to claim 1, wherein the housing is erected so as to partition the enlarged groove portion along the extending direction of the engaging groove.
JP2011066877A 2011-03-25 2011-03-25 Housing of vehicular lamp Pending JP2012204111A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2011066877A JP2012204111A (en) 2011-03-25 2011-03-25 Housing of vehicular lamp
CN2012100741141A CN102692005A (en) 2011-03-25 2012-03-20 Shell of vehicle lamp

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JP2011066877A JP2012204111A (en) 2011-03-25 2011-03-25 Housing of vehicular lamp

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6243402U (en) * 1985-09-02 1987-03-16
JPH01150307U (en) * 1988-04-06 1989-10-18
JPH11238406A (en) * 1998-02-23 1999-08-31 Honda Motor Co Ltd Drainage passage structure for vehicular lighting

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4833572A (en) * 1988-08-29 1989-05-23 General Motors Corporation Headlamp ventilation system
DE102004050744A1 (en) * 2004-10-19 2006-05-24 Hella Kgaa Hueck & Co. Headlights for vehicles and manufacturing processes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6243402U (en) * 1985-09-02 1987-03-16
JPH01150307U (en) * 1988-04-06 1989-10-18
JPH11238406A (en) * 1998-02-23 1999-08-31 Honda Motor Co Ltd Drainage passage structure for vehicular lighting

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