JP4627271B2 - Vehicle headlamp - Google Patents

Vehicle headlamp Download PDF

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JP4627271B2
JP4627271B2 JP2006052384A JP2006052384A JP4627271B2 JP 4627271 B2 JP4627271 B2 JP 4627271B2 JP 2006052384 A JP2006052384 A JP 2006052384A JP 2006052384 A JP2006052384 A JP 2006052384A JP 4627271 B2 JP4627271 B2 JP 4627271B2
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movable shade
plunger
light distribution
groove
light
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JP2007234308A (en
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真 金田
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Stanley Electric Co Ltd
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Stanley Electric Co Ltd
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Description

本発明は、ヘッドライト、フォグライト、ドライビングライトなど、主に車両の進行方向を照射するために用いられる灯具に関するものであり、詳細には、１つの光源で配光の切り換えを可能とした灯具の構成に係るものである。     The present invention relates to a lamp mainly used for irradiating the traveling direction of a vehicle, such as a headlight, a fog light, and a driving light, and more specifically, a lamp capable of switching light distribution with a single light source. It concerns on the structure of.

従来のこの種の車両用前照灯９０の構成の例を示すものが図６であり、例えば、メタルハライド放電灯９１など、一個のバルブ９１ａ内に、それぞれが独立して点滅可能な２つの光源を納めるのが困難な構成であり、１つの光源（アーク）９１ｂを利用してすれ違い配光と、走行配光との２つの配光形状を切換え自在に得ようとするときには、１つの方法として、すれ違い用反射面９２と、走行用反射面９３とを設けたものがある。   FIG. 6 shows an example of the configuration of a conventional vehicle headlamp 90 of this type. For example, in a single bulb 91a such as a metal halide discharge lamp 91, two light sources that can flash independently. When it is desired to switch between two light distribution forms of passing light distribution and traveling light distribution by using one light source (arc) 91b, one method is as follows. In some cases, a passing reflecting surface 92 and a traveling reflecting surface 93 are provided.

この場合、上記すれ違い用反射面９２、走行用反射面９３に加えてソレノイド９４（プランジャー９４ａ）で作動する可動遮光板９５が設けられ、例えば、走行配光が得たいときには、前記ソレノイド９４で可動遮光板９５を駆動し、前記すれ違い用反射面９２と、走行用反射面９３との双方に光源９１ｂからの光が達するようにして、両反射面９２、９３からの反射光の総合で走行用配光が得られるものとされている。   In this case, a movable light shielding plate 95 that is actuated by a solenoid 94 (plunger 94a) is provided in addition to the reflection surface 92 for passing and the reflection surface 93 for traveling. The movable light-shielding plate 95 is driven so that the light from the light source 91b reaches both the reflective surface 92 for passing and the reflective surface 93 for traveling so that the light reflected from both the reflective surfaces 92 and 93 travels. It is supposed that light distribution for use is obtained.

また、市街地走行時など、すれ違い配光が要求されるときには、前記ソレノイド９４の駆動を停止すると、前記可動遮光板９５はリターンスプリング９５ａにより位置を換え、走行用反射面９３へ達していた光源９１ｂからの光を遮蔽する。よって、前記すれ違い用反射面９２を、少なくとも対向車線側には上向き光を生じないものとしておけば、対向車に眩惑を生じさせないすれ違い配光が得られるものとなる。   Further, when passing light distribution is required, such as when driving in an urban area, when the drive of the solenoid 94 is stopped, the position of the movable light shielding plate 95 is changed by a return spring 95a and the light source 91b that has reached the traveling reflecting surface 93 is reached. Shield the light from. Therefore, if the reflective surface 92 for passing is set so as not to generate upward light at least on the oncoming lane side, a passing light distribution that does not cause dazzling on the oncoming vehicle can be obtained.

なお、上記可動遮光板９５を使用する方法以外に、図示は省略するが、例えば、回転放物面として形成した１枚の反射面に対して、走行配光を得るときは、反射面の焦点に光源９１ｂの位置を略一致させ、すれ違い配光を得るときには、反射面の焦点に対して光源９１ｂを適宜に上方で且つ前方に移動させて、上向き光の発生を防止する方法もあるが、この場合には、前記光源９１ｂの移動に、より高い精度が要求されるものとなる。
特開２００１−３１９５０６号公報 In addition to the method of using the movable light shielding plate 95, illustration is omitted. For example, when traveling light distribution is obtained with respect to one reflecting surface formed as a rotating paraboloid, the focal point of the reflecting surface is obtained. When the light source 91b is substantially aligned with each other to obtain a passing light distribution, there is a method of preventing the upward light from being generated by appropriately moving the light source 91b upward and forward with respect to the focal point of the reflecting surface. In this case, higher accuracy is required for the movement of the light source 91b.
JP 2001-319506 A

しかしながら、上記した従来の構成は、ソレノイド９４のプランジャー９４ａが直線運動を行うものであるのに対して、遮光板９５は円弧運動を行うものであるので、両者間には動作時の軌跡の違いを生じ、これを補正するためには、前記プランジャー９４ａ側も、遮光板９５側も回動自在とする連結桿９６で接続しなければ成らず、この取付に手間の係るものとなる問題点を生じている。   However, in the conventional configuration described above, the plunger 94a of the solenoid 94 performs a linear motion, whereas the light shielding plate 95 performs a circular motion. In order to make a difference and to correct the difference, both the plunger 94a side and the light shielding plate 95 side must be connected by a connecting rod 96 that can be rotated, and this is a problem that requires time and effort for the mounting. Has produced a point.

また、走行配光からすれ違い配光に切換えるときには、前記ソレノイド９４の駆動を停止するのみであるので、常時に遮光板９５に対してすれ違い配光が得られる位置に移動させる偏倚力を与えているリターンスプリング９５ａも取付けなければ成らず更に組立に手間の係るものとなると共に、前記ソレノイド９４の駆動時には、リターンスプリング９５ａの偏寄力に抗して、所定位置に移動させなければ成らず、前記ソレノイド９４に充分な駆動力のあるものを採用しなければ成らず大型化してコストアップの要因となる問題点も併せて生じている。   Further, when switching from running light distribution to passing light distribution, only the drive of the solenoid 94 is stopped, so that a biasing force for constantly moving the light shielding plate 95 to a position where the passing light distribution can be obtained is given. The return spring 95a must also be attached and further troublesome assembling, and when the solenoid 94 is driven, it must be moved to a predetermined position against the biasing force of the return spring 95a. The solenoid 94 must have a sufficient driving force, and has a problem in that the size is increased and the cost is increased.

本発明は、上記した従来の課題を解決するための具体的手段として、光源と、反射鏡と、可動シェードと、前記可動シェードを移動させるソレノイドとを備え、前記ソレノイドにより前記可動シェードを移動することにより、前記光源からの光が前記反射鏡に当たる位置、または、前記反射鏡からの反射光の一部を隠す位置を調整し、異なる配光分布が得られるように構成して成る車両用前照灯において、前記可動シェードには、前記ソレノイドのプランジャーの円周方向に沿い設けられる所定幅とした溝に差し込まれる逆Ｕ字状の切欠きを有する接続板が設けられている構成としてあり、前記可動シェードの前記接続板は、前記プランジャーの前記溝に挿入される部分で、折り曲げられている折曲部を有し、前記可動シェードの移動に伴い、前記プランジャーの前記溝内おいて前記折曲部の折曲点を回転の中心として前記プランジャーの前記溝の側面に常時前記折曲部の凸面側の少な<とも一部が当接を行い前記可動シェードの位置決めを行うものとされ、走行配光とするときには前記折曲部の前記折曲点よりも上半部、すれ違い配光とするときには前記折曲部の前記折曲点よりも下半部が当接し位置決めを行い、前記プランジャーの移動に伴い、前記可動シェードを所定位置に移動させて所望の配光を得ることを特徴とする車両用前照灯を提供することで、プランジャーの移動に伴う接続板との軌跡の相違を、適宜な曲線で折り曲げた接続板で吸収し、課題を解決するものである。 The present invention includes a light source, a reflecting mirror, a movable shade, and a solenoid that moves the movable shade as specific means for solving the above-described conventional problems, and the movable shade is moved by the solenoid. By adjusting the position at which the light from the light source hits the reflecting mirror or the position at which a part of the reflected light from the reflecting mirror is hidden, a different light distribution can be obtained. In the illumination lamp, the movable shade is provided with a connection plate having an inverted U-shaped notch inserted into a groove having a predetermined width provided along a circumferential direction of the solenoid plunger. , the connecting plate of the movable shade is in part to be inserted into the groove of the plunger, has a bent portion that is bent, with the movement of the movable shade In the groove of the plunger, at least a part of the convex side of the bent portion always contacts the side surface of the groove of the plunger with the bending point of the bent portion as the center of rotation. The movable shade is positioned, and when traveling light distribution is set, the upper half of the bent portion is lower than the folding point, and when passing light is distributed, the folding portion is below the bent point. By providing a vehicular headlamp characterized in that a half part abuts and performs positioning, and a desired light distribution is obtained by moving the movable shade to a predetermined position as the plunger moves. The difference in the trajectory from the connecting plate accompanying the movement of the jar is absorbed by the connecting plate bent along an appropriate curve to solve the problem.

本発明により、プランジャーに適宜な幅と深さの溝を円周方向に形成すると共に、前記溝に、逆Ｕ字状の切欠きが設けられた接続板を略「く」状に折り曲げ、折曲部を形成したものを嵌合させておくと、前記接続板はプランジャーの移動に伴い、前記折曲部の折曲点を回動の中心として回動し、凸面側の上半部ですれ違い配光位置、同じ凸面側の下半部で走行配光位置が定まるものとなるので、プランジャーと可動シェードとの最小数の部品で配光切換が行える車両用前照灯の製造が可能となり、生産性の向上とコストダウンとに極めて優れた効果を奏するものとなる。   According to the present invention, a groove having an appropriate width and depth is formed in the plunger in the circumferential direction, and a connection plate provided with an inverted U-shaped notch in the groove is bent into a substantially "<" shape. When the bent portion is fitted, the connection plate rotates with the movement of the plunger with the bending point of the bent portion as the center of rotation, and the upper half of the convex side. Since the running light distribution position is determined by the lower half of the same convex surface side, it is possible to manufacture a vehicle headlamp that can switch the light distribution with the minimum number of parts of the plunger and the movable shade. It becomes possible, and it has an extremely excellent effect on productivity improvement and cost reduction.

つぎに、本発明を図に示す実施形態に基づいて詳細に説明する。図１、及び、図２に示すののは、本発明に係る車両用前照灯１の側面図であり、図１はすれ違い配光を得るときの状態を示し、図２は走行配光を得るときの状態を示すものでである。   Below, this invention is demonstrated in detail based on embodiment shown in a figure. FIG. 1 and FIG. 2 are side views of a vehicle headlamp 1 according to the present invention. FIG. 1 shows a state when a passing light distribution is obtained, and FIG. 2 shows a traveling light distribution. It shows the state when it is obtained.

ここで、まず、図１に基づいて本発明に係る車両用前照灯１の構成について説明すれば、図１に示すように、光源部２は、メタルハライド放電灯など、１つのバルブ内に２つの発光源３ａを設けることが困難な光源３と、前記光源３を交換自在に保持するソケット４とが設けられ、該ソケット４は図示を省略した反射鏡に取付けられ、よって、光源３と反射鏡とは、相互の位置が固定されている。   Here, first, the configuration of the vehicle headlamp 1 according to the present invention will be described with reference to FIG. 1. As shown in FIG. 1, the light source unit 2 has two bulbs in one bulb such as a metal halide discharge lamp. A light source 3 that is difficult to provide one light source 3a and a socket 4 that holds the light source 3 in a replaceable manner are provided, and the socket 4 is attached to a reflecting mirror (not shown). The position of the mirror is fixed.

そして、前記光源３には、略円筒状などとした可動シェード５が被着され、この可動シェード５は回動軸５ａにより、回動を自在とされていて、回動により前記光源３、即ち、発光源３ａを覆う位置を変化させることで、従来例でも説明したように反射鏡に達する光の範囲を変化させ、例えば、すれ違い配光と、走行配光とを切換えるものである点は同様である。   The light source 3 is attached with a movable shade 5 having a substantially cylindrical shape or the like, and the movable shade 5 is freely rotatable by a rotation shaft 5a. By changing the position covering the light emitting source 3a, the range of the light reaching the reflecting mirror is changed as described in the conventional example, and, for example, the switching between the passing light distribution and the traveling light distribution is the same. It is.

また、本発明においても、可動シェード５を作動するに当たっては、ソレノイド６を採用するものであり、現状の夜間走行時においては、ほとんどの状態ですれ違い配光が使用されているので、すれ違い配光時にソレノイド６に電力を印加し、消費電力を無駄に増加させることの無いように、ソレノイド６のプランジャー６ａは最前端に位置する状態とされている。また、前記可動シェード５とプランジャー６ａは接続板７により連接されており、この状態ですれ違い配光が得られるようにされている。   Also in the present invention, the solenoid 6 is used to operate the movable shade 5, and since the passing light distribution is used in most states during the current night driving, the passing light distribution is used. In some cases, the plunger 6a of the solenoid 6 is positioned at the foremost end so that power is not applied to the solenoid 6 and the power consumption is not increased unnecessarily. The movable shade 5 and the plunger 6a are connected to each other by a connection plate 7. In this state, a light distribution can be obtained.

図２は、前記車両用前照灯１で走行配光を形成するときの状態を示すものであり、前記ソレノイド６には電力が印加され、プランジャー６ａはソレノイド６内に所定のストロークだけ吸引される。よって、プランジャー６ａに連接されている接続板７は可動シェード５を回動軸５ａを回動の中心として前下がりに傾くように回動させて光の放射方向を変え、走行用反射面にも光を配布して走行配光が得られるものとする。   FIG. 2 shows a state in which a traveling light distribution is formed by the vehicle headlamp 1. Electric power is applied to the solenoid 6, and the plunger 6 a is sucked into the solenoid 6 by a predetermined stroke. Is done. Therefore, the connecting plate 7 connected to the plunger 6a rotates the movable shade 5 so as to incline forward and downward with the rotation shaft 5a as the center of rotation, thereby changing the direction of light emission, so that the traveling reflection surface becomes the reflective surface. It is also assumed that running light distribution can be obtained by distributing light.

図３は、前記接続板７の構成を示すものであり、この接続板７は一方の端部、例えば、外部から車両用前照灯１を覗き込んだときに目立たいないソケット４側で前記可動シェード５に接続されており、そして、他方の端部が適宜な位置で下方に折り曲げられ、前記プランジャー６ａ（図４参照）と連接する脚状部７ａとされている。   FIG. 3 shows the structure of the connecting plate 7. The connecting plate 7 is movable at one end, for example, the socket 4 side that is not conspicuous when looking into the vehicle headlamp 1 from the outside. It is connected to the shade 5 and the other end is bent downward at an appropriate position to form a leg-like portion 7a connected to the plunger 6a (see FIG. 4).

また、前記プランジャー６ａの側には、図４に示すように、このプランジャー６ａの円周方向に沿う溝６ｂが後に説明するように前記脚状部７ａと対応する適宜な溝幅、深さとして形成されている。加えて、前記脚状部７ａには前記溝６ｂと嵌合する逆Ｕ字状とした切欠き７ｂが形成され、この切欠き７ｂを前記溝６ｂに挿入するのみで取付け可能とされている。   On the plunger 6a side, as shown in FIG. 4, a groove 6b along the circumferential direction of the plunger 6a has an appropriate groove width and depth corresponding to the leg portion 7a as will be described later. It is formed as Sasa. In addition, the leg portion 7a is formed with an inverted U-shaped notch 7b that fits into the groove 6b. The notch 7b can be attached only by being inserted into the groove 6b.

更に、前記接続板７の脚状部７ａには、前記切欠き７ｂに加えて、前記ソレノイド６を駆動したときの前記可動シェード５、及び、接続板７に生じる傾き（図５も参照）により発生する恐れのある前記溝６ｂ内での前記脚状部７ａのガタツキ、或いは、アタリを防止するための折曲部７ｃが設けられている。   Furthermore, in addition to the notch 7b, the leg portion 7a of the connection plate 7 has the movable shade 5 when the solenoid 6 is driven and the inclination generated in the connection plate 7 (see also FIG. 5). A bent portion 7c is provided to prevent rattling or cracking of the leg-shaped portion 7a in the groove 6b that may occur.

図４は、前記プランジャー６ａと、前記折曲部７ｃとのすれ違い配光時における状態を拡大して示すものであり、前記脚状部７ａには、前記溝６ｂが形成されたプランジャー６ａの中心線の近傍で水平方向に折曲点７ｄが形成され、このときに、前記折曲点７ｄは適度な折り曲げ程度とされて、前記脚状部７ａが溝６ｂの溝幅の両側に接する状態となるようにされることが好ましく、このようにすることで、プランジャー６ａに設けられているスプリング（図示は省略する）などと相俟って、ガタツキの発生は防止されるものとなる。   FIG. 4 is an enlarged view showing a state of passing light distribution between the plunger 6a and the bent portion 7c. The plunger 6a in which the groove 6b is formed in the leg portion 7a. A bending point 7d is formed in the horizontal direction in the vicinity of the center line, and at this time, the bending point 7d is set to an appropriate bending degree, and the leg portion 7a is in contact with both sides of the groove width of the groove 6b. It is preferable to be in a state, and by doing so, the occurrence of rattling is prevented in combination with a spring (not shown) provided on the plunger 6a. .

図５は、ソレノイド６が駆動されたとき、即ち、可動シェード５を走行配光の位置に移動させたときの、前記プランジャー６ａと前記折曲部７ｃとの状態を示すものであり、前記プランジャー６ａはソレノイド６内に引き込まれるので、これにより接続板７も前記ソケット４方向に引かれて、前記折曲部７ｃは、折曲点７ｄを作用点とする溝６ｂ内での回転動作を行い、前記折曲部７ｃは溝６ｂの溝幅の両側に接するものとなり、すれ違い配光としたときと同様にガタツキの発生は防止されるものとなる。   FIG. 5 shows a state of the plunger 6a and the bent portion 7c when the solenoid 6 is driven, that is, when the movable shade 5 is moved to the travel light distribution position. Since the plunger 6a is drawn into the solenoid 6, the connecting plate 7 is also drawn in the direction of the socket 4, and the bent portion 7c is rotated in the groove 6b having the bending point 7d as an action point. The bent portion 7c comes into contact with both sides of the groove width of the groove 6b, and the occurrence of rattling is prevented as in the case of passing light distribution.

ここで、図４と図５とを比較してみると、図４に示したすれ違い配光時には、前記脚状部７ａの前記折曲部７ｃは、前記折曲点７ｄよりも下方の折曲部７ｃが前記溝６ｂと広い面積で接するものとなり、図５に示した走行配光時には前記折曲点７ｄよりも上方の折曲部７ｃが前記溝６ｂと広い面積で接するものとなる。   Here, when FIG. 4 is compared with FIG. 5, at the time of passing light distribution shown in FIG. 4, the bent portion 7c of the leg-like portion 7a is bent below the bent point 7d. The portion 7c comes into contact with the groove 6b over a wide area, and the bent portion 7c above the bending point 7d comes into contact with the groove 6b over a wide area during the traveling light distribution shown in FIG.

よって、前記可動シェード５に要求されるすれ違い配光時と走行配光時との移動量（傾き量）を基準とし、ソレノイド６のストローク、プランジャー６ａに設ける溝６ｂの幅、接続板７の脚状部７ａに設ける折曲部７ｃの曲げ角、即ち、折曲点７ｄの半径などを正確に形成すれば、前記接続板７自体をバネ性部材で形成する必要もなく、また、可動シェード５などに対し、例えば、ソレノイド６に駆動が行われない状態でガタツキを生じるのを防止する目的で接続板７をバネ性部材で形成する必要がないものとすることができる。   Therefore, the stroke of the solenoid 6, the width of the groove 6 b provided in the plunger 6 a, the width of the connecting plate 7, and the amount of movement (inclination) between the passing light distribution and the traveling light distribution required for the movable shade 5 are used. If the bending angle of the bent portion 7c provided on the leg portion 7a, that is, the radius of the bent point 7d is accurately formed, the connecting plate 7 itself need not be formed of a spring member, and the movable shade For example, the connection plate 7 need not be formed of a spring member for the purpose of preventing the backlash from being generated when the solenoid 6 is not driven.

但し、本発明は、部品製作上の製造誤差などによりガタツキが生じることも皆無ではないので、上記した接続板７などをバネ性部材で形成し、万一に製造誤差を生じたときのガタツキの発生に備えておく構成までを排除するものではない。   However, in the present invention, since there is no possibility of rattling due to manufacturing errors in manufacturing parts, the above-described connecting plate 7 is formed of a spring-like member, and in the unlikely event that manufacturing errors occur, It does not exclude the structure to prepare for the occurrence.

以上に説明したように本発明の構成としたことで、実質的には、可動シェード５に取付けられた接続板７の切欠き７ｂをソレノイド６のプランジャー６ａに設けられた溝６ｂに挿入し、回動軸５ａで取付けるのみの工程で、１つの光源ですれ違い配光と走行配光とが切換え可能な車両用前照灯１が得られるものとなる。よって、組立工数が画期的に低減され生産性が向上すると共に、構成が単純化したことで精度の向上も期待できるものとなり、併せて、コストダウンも可能となる。   As described above, with the configuration of the present invention, the notch 7b of the connection plate 7 attached to the movable shade 5 is substantially inserted into the groove 6b provided in the plunger 6a of the solenoid 6. The vehicle headlamp 1 can be obtained in which only one light source can be switched between passing light distribution and traveling light distribution in the process of being attached by the rotating shaft 5a. Therefore, the number of assembling steps can be dramatically reduced, the productivity can be improved, and the simplification of the configuration can be expected to improve the accuracy. In addition, the cost can be reduced.

本発明に係る車両用前照灯をすれ違い配光の状態で示す側面図である。It is a side view which shows the vehicle headlamp which concerns on this invention in the state of passing light distribution. 同じく本発明に係る車両用前照灯を走行配光の状態で示す側面図である。It is a side view which similarly shows the vehicle headlamp which concerns on this invention in the state of driving | running light distribution. 本発明に係る車両用前照灯の要部である接続板を示す斜視図である。It is a perspective view which shows the connection board which is the principal part of the vehicle headlamp which concerns on this invention. すれ違い配光時におけるプランジャーと接続板との接続状態を示す説明図である。It is explanatory drawing which shows the connection state of the plunger and connection plate at the time of passing light distribution. 走行配光時におけるプランジャーと接続板との接続状態を示す説明図である。It is explanatory drawing which shows the connection state of the plunger and connection board at the time of driving | running | working light distribution. 従来例を示す断面図である。It is sectional drawing which shows a prior art example.

符号の説明Explanation of symbols

１…車両用前照灯
２…光源部
３…光源
３ａ…バルブ
４…ソケット
５…可動シェード
５ａ…回動軸
６…ソレノイド
６ａ…プランジャー
６ｂ…溝
７…接続板
７ａ…脚状部
７ｂ…切欠き
７ｃ…折曲部
７ｄ…折曲点
７ｅ…端部 DESCRIPTION OF SYMBOLS 1 ... Vehicle headlamp 2 ... Light source part 3 ... Light source 3a ... Bulb 4 ... Socket 5 ... Movable shade 5a ... Rotating shaft 6 ... Solenoid 6a ... Plunger 6b ... Groove 7 ... Connecting plate 7a ... Leg part 7b ... Notch 7c ... Bending part 7d ... Bending point 7e ... End

Claims (2)

光源と、反射鏡と、可動シェードと、前記可動シェードを移動させるソレノイドとを備え、前記ソレノイドにより前記可動シェードを移動することにより、前記光源からの光が前記反射鏡に当たる位置、または、前記反射鏡からの反射光の一部を隠す位置を調整し、異なる配光分布が得られるように構成して成る車両用前照灯において、
前記可動シェードには、前記ソレノイドのプランジャーの円周方向に沿い設けられる所定幅とした溝に差し込まれる逆Ｕ字状の切欠きを有する接続板が設けられている構成としてあり、
前記可動シェードの前記接続板は、前記プランジャーの前記溝に挿入される部分で、折り曲げられている折曲部を有し、前記可動シェードの移動に伴い、前記プランジャーの前記溝内おいて前記折曲部の折曲点を回転の中心として前記プランジャーの前記溝の側面に常時前記折曲部の凸面側の少な<とも一部が当接を行い前記可動シェードの位置決めを行うものとされ、
走行配光とするときには前記折曲部の前記折曲点よりも上半部、すれ違い配光とするときには前記折曲部の前記折曲点よりも下半部が当接し位置決めを行い、
前記プランジャーの移動に伴い、前記可動シェードを所定位置に移動させて所望の配光を得ることを特徴とする車両用前照灯。 A light source, a reflecting mirror, a movable shade, and a solenoid for moving the movable shade, and by moving the movable shade by the solenoid, a position where light from the light source hits the reflecting mirror, or the reflection In the vehicle headlamp configured to adjust the position to hide a part of the reflected light from the mirror and obtain a different light distribution,
The movable shade has a configuration in which a connection plate having an inverted U-shaped notch inserted into a groove having a predetermined width provided along the circumferential direction of the solenoid plunger is provided.
The connecting plate of the movable shade is a portion inserted into the groove of the plunger and has a bent portion that is bent, and the movable shade moves in the groove of the plunger as the movable shade moves. With the bending point of the bent part as the center of rotation, at least a part of the convex side of the bent part always contacts the side surface of the groove of the plunger to position the movable shade; And
When it is a traveling light distribution, the upper half part from the bending point of the bent part, when passing light distribution, the lower half part of the bent part is abutted and positioned,
A vehicle headlamp characterized in that a desired light distribution is obtained by moving the movable shade to a predetermined position in accordance with the movement of the plunger. 前記接続板を形成する部材は、バネ性の有無を問わないことを特徴とする請求項１に記載の車両用前照灯。 The vehicle headlamp according to claim 1 , wherein the member forming the connection plate may or may not have a spring property.
JP2006052384A 2006-02-28 2006-02-28 Vehicle headlamp Expired - Fee Related JP4627271B2 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000057811A (en) * 1998-08-03 2000-02-25 Stanley Electric Co Ltd Headlight for motorcycle
JP2005019153A (en) * 2003-06-25 2005-01-20 Ichikoh Ind Ltd Vehicular lighting fixture

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000057811A (en) * 1998-08-03 2000-02-25 Stanley Electric Co Ltd Headlight for motorcycle
JP2005019153A (en) * 2003-06-25 2005-01-20 Ichikoh Ind Ltd Vehicular lighting fixture

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