JP2743564B2 - Vehicle lighting - Google Patents
Vehicle lightingInfo
- Publication number
- JP2743564B2 JP2743564B2 JP2244725A JP24472590A JP2743564B2 JP 2743564 B2 JP2743564 B2 JP 2743564B2 JP 2244725 A JP2244725 A JP 2244725A JP 24472590 A JP24472590 A JP 24472590A JP 2743564 B2 JP2743564 B2 JP 2743564B2
- Authority
- JP
- Japan
- Prior art keywords
- horizontal member
- reflector
- opening
- aiming
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
Description
【発明の詳細な説明】 A.産業上の利用分野 本発明は、リフレクタおよび光源を一体ユニットとし
て垂直面内で光軸調整（エーミング）可能にハウジング
に保持されてなるユニット可動型車両用灯具に係り、特
に、周囲の環境によらずエーミング調整を容易にするこ
とのできる車両用灯具に関するものである。DETAILED DESCRIPTION OF THE INVENTION A. Industrial Field of the Invention The present invention relates to a unit-movable vehicle lamp in which a reflector and a light source are held as an integrated unit in a housing so that an optical axis can be adjusted (aiming) in a vertical plane. In particular, the present invention relates to a vehicular lamp that can facilitate aiming adjustment regardless of the surrounding environment.
B.従来の技術 従来の垂直面内における上下方向のエーミング調整が
可能な車両用灯具の一例である車両用ヘッドランプを第
３図に示す（実開昭62−47009号公報）。図において、
１は車両用ヘッドランプであり、この車両用ヘッドラン
プ１は、前面に開口部を有するハウジング２と、このハ
ウジング２の内部に設けられた光源３と、この光源３か
らの光をハウジング２の開口部側に反射するリフレクタ
４と、ハウジング２の開口部を覆い、リフレクタ４の反
射光を透過して外部に導くレンズ５とを備えている。リ
フレクタ４および光源３は一体のユニットとして形成さ
れており、図示しないエーミング調整機構によりランプ
用筐体２に対して相対的に垂直面内で上下方向に揺動自
在に支持されて光軸調整可能となっている。B. Prior Art FIG. 3 shows a vehicle headlamp as an example of a conventional vehicular lamp capable of vertical aiming adjustment in a vertical plane (Japanese Utility Model Application Laid-Open No. Sho 62-47009). In the figure,
Reference numeral 1 denotes a vehicle headlamp. The vehicle headlamp 1 includes a housing 2 having an opening at a front surface, a light source 3 provided inside the housing 2, and light from the light source 3. It includes a reflector 4 that reflects toward the opening, and a lens 5 that covers the opening of the housing 2 and transmits the light reflected by the reflector 4 and guides the light to the outside. The reflector 4 and the light source 3 are formed as an integral unit, and are supported by an aiming adjustment mechanism (not shown) so as to be swingable up and down in a vertical plane relative to the lamp housing 2 so that the optical axis can be adjusted. It has become.
また、この車両用ヘッドランプ１のリフレクタ４上に
は、このリフレクタ４の傾斜を測定するエーミング調整
確認機構６が設けられている。このエーミング調整確認
機構６は、前後に支持部7aが設けられた気泡式水準器７
と、リフレクタ４上に固定され、水準器７をその支持部
7aで保持する固定用筐体８と、支持部7aと固定用筐体８
との間に設けられ、リフレクタ４に対する水準器７の傾
斜の微調整を行う微調整用ねじ９とを備えている。この
微調整用ねじ９は、車両用ヘッドランプ１全体の組立時
に調整され、以降はこのねじ９による微調整は行われな
い。なお、10は水準器７上方のハウジング２に設けられ
た透明な可視窓である。Further, on the reflector 4 of the vehicle headlamp 1, an aiming adjustment confirmation mechanism 6 for measuring the inclination of the reflector 4 is provided. The aiming adjustment confirmation mechanism 6 includes a bubble level 7 provided with support portions 7a at the front and rear.
And the level 7 is fixed on the reflector 4 and
Fixing case 8 held by 7a, support portion 7a and fixing case 8
And a fine adjustment screw 9 for finely adjusting the inclination of the level 7 with respect to the reflector 4. The fine adjustment screw 9 is adjusted at the time of assembling the entire vehicle headlamp 1, and thereafter, the fine adjustment by the screw 9 is not performed. Reference numeral 10 denotes a transparent visible window provided in the housing 2 above the level 7.
以上のような構成の車両用ヘッドランプ１のエーミン
グ調整は次のようにして行われる。The aiming adjustment of the vehicle headlamp 1 configured as described above is performed as follows.
図示しないエーミング調整機構により光源３とリフレ
クタ４とを一体に上下に揺動し、ハウジング２に対する
傾斜をエーミング調整確認機構６の水準器７を目視して
確認する。The light source 3 and the reflector 4 are swung up and down integrally by an aiming adjustment mechanism (not shown), and the inclination with respect to the housing 2 is visually confirmed by the level 7 of the aiming adjustment confirmation mechanism 6.
C.発明が解決しようとする課題 しかしながら、エーミング時には車両前部のエンジン
フードを開放して作業を行うため、位置的な関係から可
視窓10付近が暗くなり、目視による確認が困難な場合が
ある。また、光源３を点灯してエーミングを行うため、
光源３の点灯によりハウジング２内部の温度が上昇し、
水準器７内の液体が膨張して気泡が小さくなり、同様に
目視による確認が困難になることもある。また、ハウジ
ング２内部の温度上昇は、エーミング調整確認機構６、
特に支持部7a、固定用筐体８およびねじ９の熱変形をも
引き起こす可能性があり、水準器７による測定に誤差を
生じるおそれもある。C. Problems to be Solved by the Invention However, at the time of aiming, since the work is performed by opening the engine hood at the front of the vehicle, the vicinity of the visible window 10 becomes dark due to positional relationship, and it may be difficult to visually confirm. . Also, since the light source 3 is turned on to perform aiming,
When the light source 3 is turned on, the temperature inside the housing 2 increases,
The liquid in the level 7 expands to reduce bubbles, and similarly, it may be difficult to visually confirm the level. The temperature rise inside the housing 2 is caused by the aiming adjustment confirmation mechanism 6,
In particular, there is a possibility that thermal deformation of the support portion 7a, the fixing housing 8 and the screw 9 may be caused, and an error may occur in the measurement by the level 7.
本発明の目的は、光源を点灯した際でもエーミング調
整を精度良くかつ容易に目視により確認し得る車両用灯
具を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicular lamp capable of accurately and easily visually confirming aiming adjustment even when a light source is turned on.
D.課題を解決するための手段 一実施例を示す第１図および第２図に対応づけて説明
すると、本発明は、リフレクタ４および光源３を一体ユ
ニットとし垂直面内で光軸調整可能にハウジング２に保
持されてなる車両用灯具に適用される。そして、本発明
は、自重により自身を水平に保持する水平部材23と、光
源３からの光の少なくとも一部を導いて水平部材23に所
定形状の光束を照射する導光部材24と、水平部材23が水
平に保持されているときに、導光部材24からの所定形状
の光束がその中央部に位置するように水平部材23に形成
された開口31とを設けることで、上記目的を達成するも
のである。D. Means for Solving the Problems To be described with reference to FIGS. 1 and 2 showing an embodiment, according to the present invention, the reflector 4 and the light source 3 are formed as an integrated unit so that the optical axis can be adjusted in a vertical plane. The present invention is applied to a vehicular lamp held by the housing 2. The present invention provides a horizontal member 23 that holds itself horizontally by its own weight, a light guide member 24 that guides at least a part of the light from the light source 3 and irradiates the horizontal member 23 with a light beam of a predetermined shape, The object is achieved by providing an opening 31 formed in the horizontal member 23 so that a light beam of a predetermined shape from the light guide member 24 is located at the center thereof when the 23 is held horizontally. Things.
E.作用 リフレクタ４およびこれと一体に揺動する光源３の傾
斜によらず、水平部材23は自身の水平を保持する。従っ
て、リフレクタ４と光源３の一体ユニットが水平軸から
上下方向にずれている場合には、導光部材24からの光束
の中心が開口31の中心からずれたり、あるいは光束その
ものが開口31に収まらなくなる。E. Action Regardless of the inclination of the reflector 4 and the light source 3 swinging integrally therewith, the horizontal member 23 maintains its own horizontal position. Therefore, when the integrated unit of the reflector 4 and the light source 3 is vertically displaced from the horizontal axis, the center of the light beam from the light guide member 24 is displaced from the center of the opening 31 or the light beam itself is not contained in the opening 31. Disappears.
そこで、開口31内の光束を目視しながら、導光部材24
からの光束の中心が開口31の中心を通過するように一体
ユニットの位置を調整すれば、エーミング調整を行うこ
とができる。Therefore, while visually checking the light flux in the opening 31, the light guide member 24
Aiming adjustment can be performed by adjusting the position of the integrated unit so that the center of the luminous flux passing through the center of the opening 31.
なお、本発明の構成を説明する前記Ｄ項およびＥ項で
は、本発明を分かり易くするために実施例の図を用いた
が、これにより本発明が実施例に限定されるものではな
い。In the above sections D and E for describing the configuration of the present invention, the drawings of the embodiments are used for easy understanding of the present invention, but the present invention is not limited to the embodiments.
F.実施例 以下、図面を参照して、本発明の実施例について詳細
に説明する。F. Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
第１図および第２図は、本発明の車両用灯具を車両用
ヘッドランプに適用した場合の一実施例を示す図であ
る。なお、以下の説明において、前述した従来例と同一
の構成要素については同一の符号を付し、その説明を簡
略化する。FIG. 1 and FIG. 2 are views showing an embodiment in which the vehicular lamp of the present invention is applied to a vehicular headlamp. In the following description, the same components as those of the above-described conventional example are denoted by the same reference numerals, and the description will be simplified.
本実施例の車両用ヘッドランプ20は、従来例における
車両用ヘッドランプ１と同様に、ハウジング２と、光源
３と、リフレクタ４と、レンズ５とを備え、リフレクタ
４および光源３は一体のユニットとして形成されるとと
もに、図示しないエーミング調整機構によりハウジング
２に対して相対的に垂直面内で上下方向に揺動自在に支
持されてエーミング調整可能とされている。The vehicle headlamp 20 of the present embodiment includes a housing 2, a light source 3, a reflector 4, and a lens 5, similarly to the vehicle headlamp 1 of the conventional example, and the reflector 4 and the light source 3 are an integrated unit. And is supported by an aiming adjustment mechanism (not shown) so as to be vertically swingable relative to the housing 2 in a vertical plane so that the aiming can be adjusted.
本実施例の車両用ヘッドランプ20と従来例の車両用ヘ
ッドランプ１との相違点は、エーミング調整確認機構の
構成にある。すなわち、リフレクタ４上面の光源３上方
に相当する箇所に設けられたエーミング調整確認機構21
は、第１図および第２図に示すように、リフレクタ４上
に固定された基台22と、この基台22に揺動自在に支持さ
れた水平部材23と、底端部24bがリフレクタ４を貫通し
て設けられ、上端24aが水平部材23近傍まで延びる導光
部材24とを備えている。The difference between the vehicle headlamp 20 of the present embodiment and the conventional vehicle headlamp 1 lies in the configuration of the aiming adjustment confirmation mechanism. That is, the aiming adjustment confirmation mechanism 21 provided at a position corresponding to the upper part of the light source 3 on the upper surface of the reflector 4
As shown in FIGS. 1 and 2, a base 22 fixed on the reflector 4, a horizontal member 23 swingably supported by the base 22, and a bottom end 24b And a light guide member 24 whose upper end 24a extends to the vicinity of the horizontal member 23.
基台22は、矩形平板状に形成されてリフレクタ４との
取付部となる基板25と、この基板25の両端部中央から上
方にそれぞれ突出する１対の支持腕26とを備えている。
支持腕26の上端部には、この支持腕26をその厚さ方向に
貫通する開口27がそれぞれ穿設されている。The base 22 includes a substrate 25 formed in a rectangular flat plate shape and serving as a mounting portion for the reflector 4, and a pair of support arms 26 projecting upward from the center of both ends of the substrate 25.
Openings 27 are formed in the upper end of the support arm 26 so as to penetrate the support arm 26 in the thickness direction.
また、水平部材23は、支持腕26間の間隔よりもやや幅
が狭く形成された矩形平板状の水平板28と、この水平板
28の両端部中央から上方にそれぞれ突出する１対の取付
腕29と、各取付腕29の側部から外方に突出する取付軸30
とを備えている。取付軸30の外径は開口27の内径よりや
や小さく形成されている。Further, the horizontal member 23 includes a rectangular flat plate-like horizontal plate 28 having a width slightly smaller than the interval between the support arms 26,
A pair of mounting arms 29 projecting upward from the center of both ends of the mounting arm 29, and a mounting shaft 30 projecting outward from the side of each mounting arm 29.
And The outer diameter of the mounting shaft 30 is formed slightly smaller than the inner diameter of the opening 27.
そして、各取付軸30が開口27にそれぞれ挿入されるこ
とで、水平部材23は１対の取付軸30を結ぶ軸の回りに揺
動自在に支持され、かつ、基台22の傾斜によらず、自重
により自身を水平に保持する。この実施例では、リフレ
クタ４および光源３が一体に揺動しうる揺動軸と水平部
材23の揺動軸、すなち１対の取付軸30を結ぶ軸とが平行
となるように、エーミング調整確認機構21の配置が決定
されている。Then, each of the mounting shafts 30 is inserted into the opening 27, so that the horizontal member 23 is swingably supported around a shaft connecting the pair of mounting shafts 30, and regardless of the inclination of the base 22. Hold itself horizontally by its own weight. In this embodiment, the aiming is performed so that the swing axis of the reflector 4 and the light source 3 which can swing together and the swing axis of the horizontal member 23, that is, the axis connecting the pair of mounting shafts 30 are parallel to each other. The arrangement of the adjustment confirmation mechanism 21 has been determined.
さらに、水平部材23の水平板28には、エーミング調整
が完了した状態において導光部材24の上端24aの上方に
相当する部分に、この上端24aと相似形の開口31が穿設
されている。この開口31の形状は、導光部材24の上端24
aの形状に対して相似形で、かつ、この開口31を上方か
ら目視した際に導光部材24の上端24aが開口31にほぼ一
致するような大きさが望ましい。Further, in the horizontal plate 28 of the horizontal member 23, an opening 31 similar to the upper end 24a is formed in a portion corresponding to the upper side of the upper end 24a of the light guide member 24 when the aiming adjustment is completed. The shape of the opening 31 corresponds to the upper end 24 of the light guide member 24.
It is desirable that the shape is similar to the shape of a and that the upper end 24a of the light guide member 24 substantially matches the opening 31 when the opening 31 is viewed from above.
なお、導光部材24は、光源３からの光を比較的低損失
で水平部材23近傍へと導き得る部材であればその材質は
限定されず、光ファイバーの束、ガラスの塊等周知手段
が好適に使用可能である。The material of the light guide member 24 is not limited as long as it can guide the light from the light source 3 to the vicinity of the horizontal member 23 with relatively low loss, and known materials such as a bundle of optical fibers and a lump of glass are preferable. It can be used for
以上のような構成の車両用ヘッドランプ20では、リフ
レクタ４およびこれと一体に揺動する光源３から成るユ
ニットの傾斜によらず、水平部材23は自身の水平を保持
している。この状態で、作業員が水平部材23の開口31を
通して導光部材24の上端24aを目視した場合、エーミン
グ調整が完了した状態ではこの上端24aは開口31内に収
まっている。逆に、リフレクタ４が水平軸線から上下方
向にずれている場合には、導光部材24の上端24aは開口3
1内に収まらない。従って、この上端24aが開口31内に収
まるように、図示しないエーミング調整機構によりリフ
レクタ４の揺動角を調整してエーミング調整を行うこと
ができる。In the vehicle headlamp 20 configured as described above, the horizontal member 23 maintains its own horizontal position regardless of the inclination of the unit including the reflector 4 and the light source 3 swinging integrally therewith. In this state, when the worker looks at the upper end 24a of the light guide member 24 through the opening 31 of the horizontal member 23, the upper end 24a is within the opening 31 when the aiming adjustment is completed. Conversely, when the reflector 4 is vertically displaced from the horizontal axis, the upper end 24a of the light guide member 24 is
Does not fit in one. Accordingly, the aiming adjustment can be performed by adjusting the swing angle of the reflector 4 by an aiming adjustment mechanism (not shown) so that the upper end 24a is within the opening 31.
本実施例によれば、光源３の光を導光部材24により直
接導いてエーミング調整に供しているので、気泡式水準
器７を用いた従来例と異なり、周囲の明るさに関係なく
エーミング調整が行える。また、光源３の点灯によるリ
フレクタ４内の温度上昇の影響についても、気泡式水準
器７を用いていないことから目視が困難になる。といっ
た事態が発生するおそれもなく、さらに、各部材が熱変
形しても水平部材23は自身の水平を常時保持できるの
で、熱変形による測定誤差を極力抑制することができ
る。これにより、結果として目視によるエーミング調整
が容易でかつ精度良い調整作業が可能な車両用灯具を実
現することができる。According to the present embodiment, since the light of the light source 3 is directly guided by the light guide member 24 and is used for the aiming adjustment, unlike the conventional example using the bubble level 7, the aiming adjustment is performed regardless of the surrounding brightness. Can be performed. Further, the influence of the temperature rise in the reflector 4 due to the lighting of the light source 3 is also difficult to see because the bubble level 7 is not used. Such a situation does not occur, and the horizontal member 23 can always maintain its own level even if each member is thermally deformed, so that a measurement error due to the thermal deformation can be suppressed as much as possible. As a result, it is possible to realize a vehicular lamp in which the aiming adjustment by visual observation is easy and the adjustment operation can be performed with high accuracy.
なお、本発明に係る車両用灯具は、その細部が前記実
施例に限定されず、種々の変形例が可能である。一例と
して、前述した実施例ではエーミング調整確認機構がリ
フレクタと別体に形成されていたが、これらを一体に
（少なくとも基台とリフレクタとを）形成してもよい。
また、エーミング調整確認機構の設置箇所はいずれの箇
所でも良く、光源３の直上に限定されない。さらに、前
述した実施例における水平部材をリフレクタに固定した
構成であってもよい。The details of the vehicular lamp according to the present invention are not limited to the above-described embodiment, and various modifications are possible. As an example, in the above-described embodiment, the aiming adjustment confirmation mechanism is formed separately from the reflector, but these may be formed integrally (at least the base and the reflector).
The installation location of the aiming adjustment confirmation mechanism may be any location, and is not limited to just above the light source 3. Further, the horizontal member in the above-described embodiment may be fixed to the reflector.
さらにまた、導光部材24の先端24aの形状と開口31の
形状とを相似形としたが、導光部材24からの光束の中心
が開口31の中心を通過することが目視できるならば必ず
しも相似形でなくてもよい。例えば導光部材24からの光
束を円形、開口31を正方形として、＋印のターゲットを
印刷した透明部材で開口31を覆うようにしてもよい。要
するに、本発明のポイントである光源３から導いた光束
の中心が開口の中心を通過することでエーミング調整状
態を確認できる方式ならば、光束や開口の形状は問わな
い。Furthermore, the shape of the distal end 24a of the light guide member 24 and the shape of the opening 31 are similar, but if the center of the light flux from the light guide member 24 passes through the center of the opening 31, it is not necessarily similar. It does not have to be in shape. For example, the light beam from the light guide member 24 may be circular and the opening 31 may be square, and the opening 31 may be covered with a transparent member on which a target marked with + is printed. In short, the shape of the light flux and the aperture is not limited as long as the aiming adjustment state can be confirmed by passing the center of the light flux guided from the light source 3 which is the point of the present invention through the center of the aperture.
G.発明の効果 以上詳細に説明したように本発明によれば、光源から
導いた光束の中心が水平部材の開口の中心を通過するこ
とを確認しつつエーミング調整可能にしたので、周囲の
明るさに関係なくエーミング調整が行える。また、光源
の点灯によるリフレクタ内の温度上昇の影響について
も、気泡式水準器のように液体の膨張によって目視が困
難になる、といった事態が発生するおそれもなく、さら
に、各部材が熱変形しても水平部材は自身の水平を常時
保持できるので、熱変形による測定誤差を極力抑制する
ことができる。よって、本発明によれば、目視によるエ
ーミング調整が容易でかつ精度良い調整作業が可能な車
両用灯具を実現することができる。G. Effects of the Invention As described in detail above, according to the present invention, it is possible to adjust the aiming while confirming that the center of the light flux guided from the light source passes through the center of the opening of the horizontal member. Aiming adjustment can be performed regardless of the above. Also, regarding the influence of the temperature rise in the reflector due to the lighting of the light source, there is no danger that visual observation becomes difficult due to the expansion of the liquid unlike the bubble level, and furthermore, each member is thermally deformed. However, since the horizontal member can always maintain its own level, the measurement error due to thermal deformation can be suppressed as much as possible. Therefore, according to the present invention, it is possible to realize a vehicular lamp in which the aiming adjustment by visual observation is easy and the adjustment operation can be performed with high accuracy.
第１図は本発明に係る車両用灯具のエーミング調整確認
機構を取り出して示す斜視図、第２図は車両用灯具の一
実施例を示す断面図、第３図は従来の車両用ヘッドラン
プの一例を示す断面図である。 2:ハウジング、3:光源 4:リフレクタ、5:レンズ 20:車両用ヘッドランプ 21:エーミング調整確認機構、23:水平部材 24:導光部材、31:開口FIG. 1 is a perspective view showing an aiming adjustment confirmation mechanism for a vehicle lamp according to the present invention, FIG. 2 is a sectional view showing an embodiment of a vehicle lamp, and FIG. It is sectional drawing which shows an example. 2: Housing, 3: Light source 4: Reflector, 5: Lens 20: Vehicle headlamp 21: Aiming adjustment confirmation mechanism, 23: Horizontal member 24: Light guide member, 31: Opening
Claims (1)
垂直面内で光軸調整可能にハウジングに保持されてなる
車両用灯具において、 自重により自身を水平に保持する水平部材と、 前記光源からの光の少なくとも一部を導いて前記水平部
材に所定形状の光束を照射する導光部材と、 前記水平部材が水平に保持されているときに前記導光部
材からの所定形状の光束がその中央部に位置するように
前記水平部材に形成された開口とを具備することを特徴
とする車両用灯具。1. A vehicular lamp having a reflector and a light source as an integrated unit and held in a housing so that an optical axis can be adjusted in a vertical plane, a horizontal member for holding itself horizontally by its own weight, and a light source for the light from the light source. A light guide member that guides at least a part of the horizontal member to irradiate the horizontal member with a light beam of a predetermined shape; and a light beam of a predetermined shape from the light guide member when the horizontal member is held horizontally. And an opening formed in the horizontal member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2244725A JP2743564B2 (en) | 1990-09-14 | 1990-09-14 | Vehicle lighting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2244725A JP2743564B2 (en) | 1990-09-14 | 1990-09-14 | Vehicle lighting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04123943A JPH04123943A (en) | 1992-04-23 |
| JP2743564B2 true JP2743564B2 (en) | 1998-04-22 |
Family
ID=17122975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2244725A Expired - Lifetime JP2743564B2 (en) | 1990-09-14 | 1990-09-14 | Vehicle lighting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2743564B2 (en) |
-
1990
- 1990-09-14 JP JP2244725A patent/JP2743564B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04123943A (en) | 1992-04-23 |
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