JP4803166B2

JP4803166B2 - Vehicle lighting

Info

Publication number: JP4803166B2
Application number: JP2007316867A
Authority: JP
Inventors: 陽一狩野
Original assignee: Ichikoh Industries Ltd
Current assignee: Ichikoh Industries Ltd
Priority date: 2007-12-07
Filing date: 2007-12-07
Publication date: 2011-10-26
Anticipated expiration: 2027-12-07
Also published as: JP2009140796A

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular lighting fixture in which downsizing of the lighting fixture and high durability of parts are achieved. SOLUTION: A reflector 5 is tiltably mounted on a lamp housing 3 via a pivot mechanism 8. A screw 14 is installed at the lamp housing 3. A pivot member 15 is screw-attached to the screw 14. The pivot member 15 is rotatably held by a holder member 16. A mounting part 17 is installed at the reflector 5. An insertion part 22 of the holder member 16 is inserted into a mounting hole 34 of the mounting part 17. The insertion part 22 has a round shape. The mounting hole 34 has an oval shape while both ends show semicircles. As a result, downsizing of the lighting fixture and high durability of the parts are achieved. COPYRIGHT: (C)2009,JPO&INPIT

Description

この発明は、たとえば、ヘッドランプやフォグランプなどの灯具の光軸を調整する光軸調整装置を備える車両用灯具に関するものである。 The present invention relates to a vehicular lamp including an optical axis adjusting device that adjusts an optical axis of a lamp such as a headlamp or a fog lamp.

この種の車両用灯具は、従来からある（たとえば、特許文献１、特許文献２、特許文献３）。以下、従来の車両用灯具について説明する。従来の車両用灯具は、リフレクタをランプボディにエイミング機構を介して傾動可能に支持するものである。前記エイミング機構は、リフレクタの傾動支点を構成するエイミング支点と、ランプボディに回転可能に支承されたエイミングスクリューと、リフレクタのブラケットの挿着孔に装着されるとともにエイミングスクリューに螺合されているナット部材と、から構成されている。 Conventionally, this type of vehicle lamp is known (for example, Patent Document 1, Patent Document 2, and Patent Document 3). Hereinafter, a conventional vehicle lamp will be described. A conventional vehicular lamp supports a reflector so as to be tiltable to a lamp body via an aiming mechanism. The aiming mechanism includes an aiming fulcrum that constitutes a tilting fulcrum of the reflector, an aiming screw that is rotatably supported on the lamp body, and a nut that is fitted into the insertion hole of the reflector bracket and screwed into the aiming screw. And a member.

以下、エイミング操作について説明する。エイミングスクリューを回転させると、ナット部材がネジ送り作用によりエイミングスクリューの軸方向に移動し、それに伴って、リフレクタがランプボディに対してエイミング支点を支点として上下方向もしくは左右方向に傾動し、その結果、灯具の光軸が調整される。ここで、ナット部材の直線運動とリフレクタの円運動との相違により、ブラケットの挿着孔とナット部材との装着箇所に応力が発生する。そこで、ブラケットの挿着孔を長孔とすることにより、ブラケットの挿着孔の縁とナット部材との間に隙間が形成され、その隙間により、応力が吸収される。かかる光軸調整装置を備える車両用灯具においては、灯具の小型化と、部品の高耐久性と、が必要である。 Hereinafter, the aiming operation will be described. When the aiming screw is rotated, the nut member moves in the axial direction of the aiming screw by the screw feeding action, and accordingly, the reflector tilts up and down or left and right with respect to the lamp body with the aiming fulcrum as a fulcrum. The optical axis of the lamp is adjusted. Here, due to the difference between the linear motion of the nut member and the circular motion of the reflector, stress is generated at the mounting position between the bracket insertion hole and the nut member. Therefore, by making the insertion hole of the bracket a long hole, a gap is formed between the edge of the insertion hole of the bracket and the nut member, and stress is absorbed by the gap. In a vehicular lamp provided with such an optical axis adjusting device, it is necessary to reduce the size of the lamp and to achieve high durability of parts.

特開２００３−１９７００９号公報JP 2003-197090 A 特開平７−１９２５０５号公報JP-A-7-192505 実開平５−９２９０１号公報Japanese Utility Model Publication No. 5-92901

この発明が解決しようとする課題は、灯具の小型化と、部品の高耐久性と、が図られる車両用灯具を提供することにある。 The problem to be solved by the present invention is to provide a vehicular lamp that achieves downsizing of the lamp and high durability of parts.

この発明（請求項１にかかる発明）は、光軸調整装置が、固定部材に傾動部材を傾動可能に取り付ける傾動取付部材と、固定部材に設けられていて、固定部材に対して傾動部材を傾動取付部材の傾動中心を中心として傾動させる傾動操作シャフトと、傾動操作シャフトに設けられていて、傾動操作シャフトの操作により傾動操作シャフトの軸方向に移動するピボット部材と、そのピボット部材をピボット部材の中心を中心として回転可能に保持する保持部と、傾動取付部材の傾動中心とピボット部材の回転中心とを結ぶ線分方向と直交する方向に係合爪部が設けられている挿入部と、からなり、ピボット部材と共に傾動操作シャフトの軸方向に移動するホルダ部材と、傾動部材に設けられていて、取付孔を有し、その取付孔中に挿入部が挿入されていて、かつ、その取付孔の縁にホルダ部材の保持部と係合爪部とが挟み込んだ状態で線分方向に移動可能に取り付けられている取付部材と、から構成されていて、ホルダ部材の取付孔中に挿入されている挿入部の取付孔を含む面における断面形状が、円形をなし、取付孔が、両端が半円形をなす線分方向に長い長円形をなす、ことを特徴とする。 According to the present invention (the invention according to claim 1), the optical axis adjusting device is provided on the fixed member, the tilted mounting member for tiltably mounting the tilted member on the fixed member, and tilting the tilted member with respect to the fixed member. A tilt operation shaft that tilts about the tilt center of the mounting member, a pivot member that is provided on the tilt operation shaft and moves in the axial direction of the tilt operation shaft by the operation of the tilt operation shaft, and the pivot member is connected to the pivot member A holding portion rotatably held around the center, and an insertion portion provided with an engaging claw in a direction perpendicular to a line segment direction connecting the tilting center of the tilting mounting member and the rotation center of the pivot member. becomes a holder member that moves in the axial direction of the tilting operation shaft with the pivot member, provided in the tilting member has a mounting hole, the insertion portion is inserted into the mounting hole It has been and a mounting member which is mounted movably in the line segment direction in a state in which the holding portion and the engaging claw portion is sandwiched in holder member to the edge of the mounting hole, be composed of the holder The cross-sectional shape of the surface including the mounting hole of the insertion portion inserted into the mounting hole of the member is circular, and the mounting hole has an oval shape that is long in the direction of a line segment in which both ends are semicircular. And

また、この発明（請求項２にかかる発明）は、傾動操作シャフトが固定部材に回転可能に設けられているスクリューであり、ピボット部材がスクリューにネジ装着されていて、ホルダ部材がピボット部材をスクリューの軸回りに回転不可能に保持する保持部と挿入部との一体構造をなし、取付部材のうち取付孔の両脇には、保持部をスクリューの軸回りに回転不可能にかつ線分方向に移動可能に挟み込んだ状態で当接する当接部が、線分方向に設けられている、ことを特徴とする。 Further, the present invention (invention according to claim 2) is a screw in which the tilting operation shaft is rotatably provided on the fixed member, the pivot member is mounted on the screw, and the holder member screws the pivot member. The holding part and the insertion part are held in a non-rotatable manner around the axis of the screw, and the holding parts on both sides of the mounting hole of the mounting member are non-rotatable around the screw axis and in the direction of the line segment. The abutting part that abuts in a state of being movably sandwiched between the two is provided in the line segment direction.

さらに、この発明（請求項３にかかる発明）は、ホルダ部材が、スクリューの軸方向に対称である２個の部品を、ピボット部材を挟み込んだ状態で締結してなる２ピースタイプのホルダ部材である、ことを特徴とする。 Furthermore, this invention (invention according to claim 3) is a two-piece type holder member in which the holder member is formed by fastening two parts symmetrical with respect to the axial direction of the screw with the pivot member interposed therebetween. It is characterized by that.

この発明（請求項１にかかる発明）の車両用灯具は、ホルダ部材の傾動操作シャフトの軸方向の直線運動と傾動部材の傾動取付部材の傾動中心を中心とする円運動とが相違していても、傾動部材の取付部材の取付孔が長円形をなすので、ホルダ部材の挿入部と取付孔の縁との間に隙間が形成され、その隙間により、取付部材の取付孔とホルダ部材との取付箇所において発生する応力が吸収される。その上、この発明（請求項１にかかる発明）の車両用灯具は、ホルダ部材が取付部に対して線分方向にスムーズにかつ確実に移動することができる。 In the vehicular lamp according to the present invention (the invention according to claim 1), the linear motion in the axial direction of the tilting operation shaft of the holder member is different from the circular motion about the tilting center of the tilting mounting member of the tilting member. In addition, since the mounting hole of the mounting member of the tilting member has an oval shape, a gap is formed between the insertion portion of the holder member and the edge of the mounting hole, and the clearance between the mounting hole of the mounting member and the holder member The stress generated at the mounting location is absorbed. Moreover, in the vehicular lamp according to the present invention (the invention according to claim 1), the holder member can move smoothly and reliably in the line segment direction with respect to the mounting portion.

しかも、この発明（請求項１にかかる発明）の車両用灯具は、長円形の取付孔に挿入されているホルダ部材の挿入部の取付孔を含む面における断面形状が円であるから、挿入部の断面形状が長方形（短辺が円の直径と等しい長方形）の車両用灯具と比較すると、ホルダ部材および取付部材を小型化することができる（図１３および図１４参照）。また、断面形状が正方形（一辺が円の直径と等しい正方形）の車両用灯具と比較すると、ホルダ部材および取付部材を同じく小型化することができる（図１５参照）。ところが、図１６に示すように、正方形の場合、取付孔（図１６中の二点鎖線で示す取付孔）には４つの角部があるために、その角部に応力が集中し易く、一方、円の場合、取付孔（図１６中の実線で示す取付孔）には角部が無い。その上、円の場合の取付孔の円弧の外側の部分、すなわち、正方形の場合の取付孔の４つの角部に囲まれた部分（図１６中の斜線が施されている部分）には、取付部材を構成する素材（たとえば、合成樹脂）が充填されているので、強度が向上され、部品の高耐久性を図ることができる。 Moreover, the vehicular lamp of the present invention (the invention according to claim 1) has a circular cross-sectional shape on the surface including the mounting hole of the insertion portion of the holder member inserted into the oval mounting hole. Compared with a vehicular lamp whose cross-sectional shape is rectangular (a rectangle whose short side is equal to the diameter of the circle), the holder member and the mounting member can be reduced in size (see FIGS. 13 and 14). Further, the holder member and the mounting member can be similarly miniaturized as compared with a vehicular lamp having a square cross section (a square whose side is equal to the diameter of the circle) (see FIG. 15). However, as shown in FIG. 16, in the case of a square, there are four corners in the attachment hole (attachment hole indicated by a two-dot chain line in FIG. 16), so stress tends to concentrate on the corner. In the case of a circle, the mounting hole (the mounting hole indicated by the solid line in FIG. 16) has no corners. In addition, in the portion outside the arc of the mounting hole in the case of a circle, that is, the portion surrounded by the four corners of the mounting hole in the case of a square (portion shaded in FIG. 16), Since the material (for example, synthetic resin) which comprises an attachment member is filled, intensity | strength is improved and the high durability of components can be aimed at.

また、この発明（請求項２にかかる発明）の車両用灯具は、ピボット部材がスクリューにネジ装着されていてかつホルダ部材の保持部にスクリューの軸回りに回転不可能に保持されていて、一方、ホルダ部材の保持部が取付部材の当接部にスクリューの軸回りに回転不可能にかつ線分方向に移動可能に当接している。このために、この発明（請求項２にかかる発明）の車両用灯具は、ホルダ部材の挿入部の断面形状が円であっても、スクリューを回転させてピボット部材をネジ送り作用によりスクリューの軸方向に移動させる際に、ピボット部材とホルダ部材とが一体となってスクリューの回転とともにスクリューの軸回りに回転することが無い。これにより、この発明（請求項２にかかる発明）の車両用灯具は、スクリューを回転させることにより、ピボット部材をネジ送り作用でスクリューの軸方向に確実に移動させることができ、かつ、このピボット部材のスクリューの軸方向の移動に伴ってホルダ部材もスクリューの軸方向に確実に移動する。この結果、この発明（請求項２にかかる発明）の車両用灯具は、固定部材に対して傾動部材を傾動取付部材の傾動中心を中心として確実に傾動させることができる。 In the vehicular lamp of the present invention (the invention according to claim 2), the pivot member is screwed to the screw and is held by the holding portion of the holder member so as not to rotate around the axis of the screw. The holding part of the holder member is in contact with the contact part of the mounting member so that it cannot rotate around the axis of the screw and is movable in the line segment direction. Therefore, in the vehicular lamp of the present invention (the invention according to claim 2), even if the cross-sectional shape of the insertion portion of the holder member is a circle, the screw is rotated and the pivot member is screwed to rotate the shaft of the screw. When moving in the direction, the pivot member and the holder member are integrated and do not rotate around the axis of the screw as the screw rotates. As a result, the vehicular lamp of the present invention (the invention according to claim 2) can reliably move the pivot member in the axial direction of the screw by the screw feeding action by rotating the screw. As the member moves in the axial direction of the screw, the holder member also moves reliably in the axial direction of the screw. As a result, the vehicular lamp of the present invention (the invention according to claim 2) can reliably tilt the tilting member with respect to the fixed member around the tilting center of the tilting mounting member.

しかも、この発明（請求項２にかかる発明）の車両用灯具は、ホルダ部材の保持部が取付部材の当接部に挟み込まれた状態で当接するので、ホルダ部材の保持部の線分方向の寸法と、線分方向と直交する方向すなわち当接部により挟み込まれる方向の寸法と、を変えると、ホルダ部材の挿入部を取付部材の取付孔に挿入してホルダ部材を取付部材に取り付ける際に、ホルダ部材の挿入部の断面形状が円であっても、ホルダ部材を取付部材に誤組付することなく正規の位置に取り付けることができ、ホルダ部材を取付部材に確実に取り付けることができる。 In addition, the vehicular lamp of the present invention (the invention according to claim 2) abuts in a state where the holding portion of the holder member is sandwiched between the abutting portions of the mounting member. When the dimensions and the direction perpendicular to the line segment direction, that is, the dimension sandwiched by the contact portion are changed, the holder member insertion portion is inserted into the attachment hole of the attachment member and the holder member is attached to the attachment member. Even if the cross-sectional shape of the insertion portion of the holder member is a circle, the holder member can be attached to a proper position without being mistakenly attached to the attachment member, and the holder member can be reliably attached to the attachment member.

さらに、この発明（請求項３にかかる発明）の車両用灯具は、ホルダ部材が、スクリューの軸方向に対称である２個の部品を、ピボット部材を挟み込んだ状態で締結してなる２ピースタイプのホルダ部材である。このために、この発明（請求項３にかかる発明）の車両用灯具は、１ピースタイプのホルダ部材にピボット部材を圧入する車両用灯具と比較して、ホルダ部材とピボット部材との間の抵抗が少なくすることができるので、ピボット部材がホルダ部材に対してピボット部材の中心を中心としてスムーズに回転することができ、その結果、灯具の光軸をスムーズに調整することができる。 Furthermore, the vehicle lamp of the present invention (the invention according to claim 3) is a two-piece type in which the holder member is fastened with two parts symmetrical with respect to the axial direction of the screw with the pivot member interposed therebetween. This is a holder member. For this reason, the vehicle lamp of the present invention (the invention according to claim 3) has a resistance between the holder member and the pivot member as compared with the vehicle lamp in which the pivot member is press-fitted into the one-piece type holder member. Therefore, the pivot member can smoothly rotate around the center of the pivot member with respect to the holder member, and as a result, the optical axis of the lamp can be adjusted smoothly.

しかも、この発明（請求項３にかかる発明）の車両用灯具は、ホルダ部材の保持部が取付部材の当接部に挟み込まれた状態で当接するので、ホルダ部材が、スクリューの軸方向に対称である２個の部品を、ピボット部材を挟み込んだ状態で締結してなる２ピースタイプのホルダ部材であっても、ホルダ部材が２ピースに分割するのを当接部の当接により確実に防止することができる。この結果、この発明（請求項３にかかる発明）の車両用灯具は、２ピースタイプのホルダ部材をしようしても、なんら問題が無く、しかも、スムーズに光軸調整を行うことができる。 Moreover, in the vehicular lamp according to the present invention (the invention according to claim 3), the holder member abuts in a state where the holding portion of the holder member is sandwiched between the abutting portions of the mounting member, so that the holder member is symmetrical with respect to the axial direction of the screw. Even if it is a two-piece type holder member formed by fastening the two parts with the pivot member sandwiched therebetween, the holder member is reliably prevented from being divided into two pieces by the contact of the contact portion can do. As a result, the vehicular lamp according to the present invention (the invention according to claim 3) can be adjusted smoothly without any problem even if a two-piece type holder member is used.

以下に、この発明にかかる車両用灯具の実施例を図面に基づいて詳細に説明する。なお、この実施例によりこの発明が限定されるものではない。 Embodiments of a vehicular lamp according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

以下、この実施例における車両用灯具の構成について説明する。図１、図２、図３において、符号１は、この実施例における車両用灯具であって、この例ではヘッドランプである。前記ヘッドランプ１は、灯室２を区画する固定部材としてのランプハウジング３およびランプレンズ４と、前記灯室２内に配置されている傾動部材としてのリフレクタ５と、前記リフレクタ５に取り付けられている光源６と、光軸調整装置７と、を備えるものである。なお、前記光源６としては、たとえば、ＬＥＤなどの半導体型光源、ＨＩＤなどの放電灯、ハロゲンバルブ、白熱バルブなどがある。 Hereinafter, the configuration of the vehicular lamp in this embodiment will be described. 1, 2, and 3, reference numeral 1 denotes a vehicle lamp in this embodiment, which is a headlamp in this example. The headlamp 1 is attached to a lamp housing 3 and a lamp lens 4 as fixing members that partition the lamp chamber 2, a reflector 5 as a tilting member disposed in the lamp chamber 2, and the reflector 5. The light source 6 and the optical axis adjusting device 7 are provided. Examples of the light source 6 include a semiconductor light source such as an LED, a discharge lamp such as an HID, a halogen bulb, and an incandescent bulb.

前記光軸調整装置７は、前記ランプハウジング３に対して前記リフレクタ５を傾動させて前記リフレクタ５の光軸Ｚ−Ｚを調整するものである。前記光軸調整装置７は、傾動取付部材としてのピボット機構８と、上下方向用光軸調整機構としてのレベリング装置９と、左右方向用光軸調整機構１０と、から構成されている。 The optical axis adjusting device 7 adjusts the optical axis ZZ of the reflector 5 by tilting the reflector 5 with respect to the lamp housing 3. The optical axis adjusting device 7 includes a pivot mechanism 8 as a tilting attachment member, a leveling device 9 as an optical axis adjusting mechanism for the vertical direction, and an optical axis adjusting mechanism 10 for the horizontal direction.

前記レベリング装置９は、前記ランプハウジング３に対して前記リフレクタ５を、図１に示す水平軸もしくはほぼ水平な軸（以下、単に「水平軸」と称する）Ｈ−Ｈ回りに傾動（回転）させて、前記リフレクタ５の光軸Ｚ−Ｚを上下方向に調整するものである。前記左右方向用光軸調整機構１０は、前記ランプハウジング３に対して前記リフレクタ５を、図１に示す垂直軸もしくはほぼ垂直な軸（以下、単に「垂直軸」と称する）Ｖ１−Ｖ１、Ｖ２−Ｖ２回りに傾動（回転）させて、前記リフレクタ５の光軸Ｚ−Ｚを左右方向に調整するものである。 The leveling device 9 tilts (rotates) the reflector 5 around the horizontal axis shown in FIG. 1 or a substantially horizontal axis (hereinafter simply referred to as “horizontal axis”) HH with respect to the lamp housing 3. Thus, the optical axis ZZ of the reflector 5 is adjusted in the vertical direction. The optical axis adjusting mechanism 10 for the left and right direction is configured such that the reflector 5 is arranged with respect to the lamp housing 3 with a vertical axis or a substantially vertical axis (hereinafter simply referred to as “vertical axis”) V1-V1, V2 shown in FIG. By tilting (rotating) around -V2, the optical axis ZZ of the reflector 5 is adjusted in the left-right direction.

前記水平軸Ｈ−Ｈは、前記ピボット機構８の中心（傾動取付部材の傾動中心）Ｏと、前記左右方向用光軸調整機構１０の中心（ピボット部材の回転中心）ＯＨと、を結ぶ線分である。前記垂直軸Ｖ１−Ｖ１、Ｖ２−Ｖ２は、前記ピボット機構８の中心Ｏと、前記レベリング装置９の中心（ピボット部材１５の回転中心）Ｏ１、Ｏ２と、を結ぶ線分である。前記垂直軸Ｖ１−Ｖ１、Ｖ２−Ｖ２は、図２、図３、図１７（Ｂ）に示すように、前記ピボット機構８の中心（傾動取付部材の傾動中心）Ｏを通る垂直軸Ｖ−Ｖに対して、前記ピボット機構８の中心Ｏを中心として傾斜している。前記垂直軸Ｖ−Ｖは、前記ヘッドランプ１を車両（図示せず）に装備した際の地表に対しての垂直線である。 The horizontal axis H-H is a line segment connecting the center of the pivot mechanism 8 (the tilting center of the tilting mounting member) O and the center of the left-right optical axis adjusting mechanism 10 (the center of rotation of the pivot member) OH. It is. The vertical axes V1-V1 and V2-V2 are line segments connecting the center O of the pivot mechanism 8 and the centers (rotation centers of the pivot member 15) O1 and O2 of the leveling device 9. As shown in FIGS. 2, 3 and 17B, the vertical axes V1-V1 and V2-V2 are vertical axes V-V passing through the center (the tilting center of the tilting mounting member) O of the pivot mechanism 8. On the other hand, it is inclined with the center O of the pivot mechanism 8 as the center. The vertical axis V-V is a vertical line with respect to the ground surface when the headlamp 1 is installed in a vehicle (not shown).

前記ピボット機構８は、図２および図３に示すように、前記ランプハウジング３に固定されている球凸部を有する球軸部１１と、前記リフレクタ５に設けられている球凹部を有する球軸受部１２と、から構成されている。前記球軸部１１の球凸部が前記球軸受部１２の球凹部に前記球軸部１１の球凸部および前記球軸受部１２の球凹部の中心Ｏを中心として傾動（回転）可能に軸受されている。 As shown in FIGS. 2 and 3, the pivot mechanism 8 includes a spherical shaft portion 11 having a spherical convex portion fixed to the lamp housing 3 and a spherical bearing having a spherical concave portion provided in the reflector 5. Part 12. The spherical convex portion of the spherical shaft portion 11 can be tilted (rotated) around the spherical convex portion of the spherical shaft portion 11 and the center O of the spherical concave portion of the ball bearing portion 12 in the spherical concave portion of the ball bearing portion 12. Has been.

前記レベリング装置９は、図２および図３に示すように、ハウジング１３と、モータ（図示せず）と、駆動力伝達機構（図示せず）と、傾動操作シャフトとしてのスクリュー１４と、ピボット部材１５と、ホルダ部材１６と、取付部材としての取付部１７と、から構成されている。また、前記左右方向用光軸調整機構１０は、図示しないが、前記レベリング装置９の構成とほぼ同様に、スクリューと、ピボット部材と、ホルダ部材と、取付部材としての取付部と、から構成されている。 2 and 3, the leveling device 9 includes a housing 13, a motor (not shown), a driving force transmission mechanism (not shown), a screw 14 as a tilting operation shaft, and a pivot member. 15, a holder member 16, and an attachment portion 17 as an attachment member. Further, although not shown in the drawing, the optical axis adjustment mechanism 10 for the left-right direction is configured by a screw, a pivot member, a holder member, and an attachment portion as an attachment member, almost the same as the configuration of the leveling device 9. ing.

前記レベリング装置９において、前記ハウジング１３は、前記ランプハウジング３に固定されている。前記ハウジング１３内には、前記モータおよび前記駆動力伝達機構がそれぞれ内蔵されている。前記モータの出力軸には、前記駆動力伝達機構が取り付けられている。前記駆動力伝達機構には、前記スクリュー１４が取り付けられている。 In the leveling device 9, the housing 13 is fixed to the lamp housing 3. In the housing 13, the motor and the driving force transmission mechanism are incorporated. The driving force transmission mechanism is attached to the output shaft of the motor. The screw 14 is attached to the driving force transmission mechanism.

前記スクリュー１４は、前記レベリング装置９を介して前記ランプハウジング３に回転可能に設けられている。前記スクリュー１４は、前記ランプハウジング３に対して前記リフレクタ５を、前記ピボット機構８の中心Ｏを中心としてすなわち前記水平軸Ｈ−Ｈ回りに傾動させるものである。 The screw 14 is rotatably provided on the lamp housing 3 via the leveling device 9. The screw 14 tilts the reflector 5 with respect to the lamp housing 3 around the center O of the pivot mechanism 8, that is, around the horizontal axis HH.

前記ピボット部材１５は、図４、図５、図６、図１８、図２０に示すように、球凸部と円筒部とから構成されている。前記ピボット部材１５の球凸部と円筒部とには、ネジ孔１８が設けられている。前記ネジ孔１８の中心軸が前記ピボット部材１５の球凸部の中心Ｏ１、Ｏ２を通る。前記ネジ孔１８の円筒部側の開口縁がすり鉢形状に外側に広がっている。前記ピボット部材１５には、凸形状の回転止め部１９が前記ネジ孔１８に対して交差（直交）して一体に設けられている。前記ピボット部材１５のネジ孔１８が前記スクリュー１４のネジ部２０にネジ装着されている。この結果、前記ピボット部材１５は、前記スクリュー１４に設けられていて、前記スクリュー１４の操作により前記スクリュー１４の軸方向に移動するものである。 As shown in FIGS. 4, 5, 6, 18, and 20, the pivot member 15 includes a spherical convex portion and a cylindrical portion. A screw hole 18 is provided in the spherical convex portion and the cylindrical portion of the pivot member 15. The central axis of the screw hole 18 passes through the centers O1 and O2 of the spherical convex portions of the pivot member 15. An opening edge on the cylindrical portion side of the screw hole 18 spreads outward in a mortar shape. The pivot member 15 is integrally provided with a convex rotation stopper 19 that intersects (perpendicularly) the screw hole 18. The screw hole 18 of the pivot member 15 is screwed to the screw portion 20 of the screw 14. As a result, the pivot member 15 is provided on the screw 14 and moves in the axial direction of the screw 14 by operation of the screw 14.

前記ホルダ部材１６は、図４、図５、図６、図１８、図１９、図２０、図２１に示すように、中央に球凹部を有する保持部２１と、挿入部２２と、が一体構造をなすものである。前記保持部２１の球凹部には、凹形状の回転止め部２３が設けられている。前記挿入部２２中には、前記保持部２１の球凹部と連通する透孔２４が設けられている。 As shown in FIGS. 4, 5, 6, 18, 19, 20, and 21, the holder member 16 includes a holding portion 21 having a spherical recess at the center and an insertion portion 22. It is what makes. The spherical recess of the holding portion 21 is provided with a concave rotation stop portion 23. In the insertion portion 22, a through hole 24 that communicates with the spherical recess of the holding portion 21 is provided.

前記保持部２１の球凹部には、前記ピボット部材１５の球凸部が前記ピボット部材１５の球凸部の中心Ｏ１、Ｏ２を中心として回転可能に保持されている。また、前記ピボット部材１５の回転止め部１９が前記ホルダ部材１６の回転止め部２３に嵌合されている。さらに、前記スクリュー１４が前記ホルダ部材１６の前記挿入部２２の前記透孔２４中に挿通する。この結果、前記ホルダ部材１６は、前記ピボット部材１５を、前記ピボット部材１５の中心Ｏ１、Ｏ２を中心として回転可能に、かつ、前記スクリュー１４の軸回りに回転不可能に保持し、前記ピボット部材１５と共に前記スクリュー１４の軸方向に移動するものである。 The spherical convex portion of the pivot member 15 is held in the spherical concave portion of the holding portion 21 so as to be rotatable around the centers O1 and O2 of the spherical convex portion of the pivot member 15. Further, the rotation stop portion 19 of the pivot member 15 is fitted to the rotation stop portion 23 of the holder member 16. Further, the screw 14 is inserted into the through hole 24 of the insertion portion 22 of the holder member 16. As a result, the holder member 16 holds the pivot member 15 so that the pivot member 15 can rotate about the centers O1 and O2 of the pivot member 15 and cannot rotate about the axis of the screw 14. 15 moves in the axial direction of the screw 14.

前記ホルダ部材１６の前記保持部２１は、前記スクリュー１４の軸方向から見て正方形形状をなす。また、前記ホルダ部材１６の前記挿入部２２は、前記スクリュー１４の軸方向から見て円形形状をなす。正方形形状の前記保持部２１の一辺は、円形形状の前記挿入部２２の外径よりも大きい。前記スクリュー１４の中心軸は、前記ホルダ部材１６の前記保持部２１の球凹部の中心軸および前記挿入部２２の前記透孔２４の中心軸と一致もしくはほぼ一致する。 The holding portion 21 of the holder member 16 has a square shape when viewed from the axial direction of the screw 14. The insertion portion 22 of the holder member 16 has a circular shape when viewed from the axial direction of the screw 14. One side of the square holding portion 21 is larger than the outer diameter of the circular insertion portion 22. The central axis of the screw 14 coincides with or substantially coincides with the central axis of the spherical recess of the holding portion 21 of the holder member 16 and the central axis of the through hole 24 of the insertion portion 22.

前記ホルダ部材１６は、前記スクリュー１４（前記保持部２１の球凹部および前記挿入部２２の前記透孔２４）の軸方向に対称である２個の部品２５、２５を、前記ピボット部材１５を挟み込んだ状態で締結してなる２ピースタイプのホルダ部材である。すなわち、前記ホルダ部材１６は、前記保持部２１および前記挿入部２２を、前記スクリュー１４の軸方向に２分割してなる２ピースタイプのホルダ部材である。 The holder member 16 sandwiches the pivot member 15 with two parts 25 and 25 that are symmetrical in the axial direction of the screw 14 (the spherical concave portion of the holding portion 21 and the through hole 24 of the insertion portion 22). It is a two-piece type holder member that is fastened in a state. That is, the holder member 16 is a two-piece type holder member obtained by dividing the holding portion 21 and the insertion portion 22 in the axial direction of the screw 14.

前記２個の部品２５、２５の前記保持部２１の分割面Ｓと直交する２側面の一方には、嵌合腕２６が一体に設けられていて、他方には、ランス形状の嵌合凸部２７と固定部２８とが一体に設けられている。前記嵌合腕２６には、前記嵌合凸部２７が嵌合する嵌合孔２９が、設けられている。また、前記固定部２８には、前記嵌合腕２６が挿入する挿入孔３０が、設けられている。一方、前記２個の部品２５、２５の前記挿入部２２には、ランス形状の係合爪部３１が前記挿入部２２の分割面Ｓと直交する方向に一体に設けられている。 A fitting arm 26 is integrally provided on one of the two side surfaces of the two parts 25, 25 perpendicular to the dividing surface S of the holding portion 21, and on the other side, a lance-shaped fitting convex portion. 27 and the fixing portion 28 are provided integrally. The fitting arm 26 is provided with a fitting hole 29 into which the fitting convex portion 27 is fitted. The fixing portion 28 is provided with an insertion hole 30 into which the fitting arm 26 is inserted. On the other hand, a lance-shaped engagement claw portion 31 is integrally provided in the insertion portion 22 of the two parts 25, 25 in a direction orthogonal to the split surface S of the insertion portion 22.

前記２個の部品２５、２５は、同一の形状をなす。このために、同一形状の部品２５を製造して、この同一形状の部品２５、２５を２個使用して前記ホルダ部材１６を構成するものである。すなわち、図１８および図２０に示すように、前記２個の部品２５、２５の前記嵌合腕２６を相手方の前記固定部２８の前記挿入孔３０中に挿入して、前記嵌合腕２６の前記嵌合孔２９中に相手方の前記嵌合凸部２７を嵌合させることにより、前記ホルダ部材１６が構成される。 The two parts 25, 25 have the same shape. For this purpose, a part 25 having the same shape is manufactured, and the holder member 16 is constituted by using two parts 25 and 25 having the same shape. That is, as shown in FIGS. 18 and 20, the fitting arms 26 of the two parts 25, 25 are inserted into the insertion holes 30 of the other fixing portion 28, and the fitting arms 26 are The holder member 16 is configured by fitting the mating projection 27 of the other party into the fitting hole 29.

前記ホルダ部材１６の前記保持部２１の分割面Ｓと平行な２側面は、当接面３２を構成する。前記当接面３２間の距離Ｔ１は、前記ホルダ部材１６の前記保持部２１の分割面Ｓと直交する２側面（前記固定部２８もしくは前記嵌合腕部２６）の距離Ｔ２よりも小さい。 Two side surfaces of the holder member 16 parallel to the split surface S of the holding portion 21 constitute a contact surface 32. A distance T 1 between the contact surfaces 32 is smaller than a distance T 2 between two side surfaces (the fixed portion 28 or the fitting arm portion 26) orthogonal to the split surface S of the holding portion 21 of the holder member 16.

前記リフレクタ５には、前記取付部材としての前記取付部１７が一体に設けられている。前記取付部１７は、図２〜図１２に示すように、上水平板部と、下水平板部と、垂直板部と、からなる断面コの字形状をなす。前記取付部１７の垂直板部には、取付孔３４が設けられている。前記取付孔３４中には、前記ホルダ部材１６の前記挿入部２２が挿入されている。また、前記取付孔３４の縁には、前記ホルダ部材１６が前記ピボット機構８の中心Ｏと前記レベリング装置９の前記ピボット部材１５の中心Ｏ１、Ｏ２とを結ぶ線分（前記垂直軸Ｖ１−Ｖ１、Ｖ２−Ｖ２）方向に移動可能に取り付けられている。すなわち、図６に示すように、前記取付孔３４の縁には、前記ホルダ部材１６の前記保持部２１の下面と前記係合爪３１の上面とが上下に挟み込んだ状態で、前記線分（前記垂直軸Ｖ１−Ｖ１、Ｖ２−Ｖ２）方向に移動可能に係合している。 The reflector 5 is integrally provided with the attachment portion 17 as the attachment member. As shown in FIGS. 2 to 12, the mounting portion 17 has a U-shaped cross section including an upper horizontal plate portion, a lower horizontal plate portion, and a vertical plate portion. An attachment hole 34 is provided in the vertical plate portion of the attachment portion 17. The insertion portion 22 of the holder member 16 is inserted into the mounting hole 34. Further, at the edge of the mounting hole 34, the holder member 16 is a line segment (the vertical axis V1-V1) connecting the center O of the pivot mechanism 8 and the centers O1, O2 of the pivot member 15 of the leveling device 9. , V2-V2) is movably attached. That is, as shown in FIG. 6, the edge of the mounting hole 34 is in a state where the lower surface of the holding portion 21 of the holder member 16 and the upper surface of the engaging claw 31 are vertically sandwiched between the line segment ( The vertical axes V1-V1, V2-V2) are engaged so as to be movable.

図７〜図１０、図１１（Ｂ）、図１２（Ｂ）に示すように、前記ホルダ部材１６の前記挿入部２２の断面形状、すなわち、前記ホルダ部材１６の前記取付孔３４中に挿入されている前記挿入部２２の前記取付孔３４を含む面における断面形状は、円形をなす。一方、図７〜図１０、図１１（Ａ）、図１２（Ａ）に示すように、前記取付孔３４は、両端が半円形をなす前記線分（前記垂直軸Ｖ１−Ｖ１、Ｖ２−Ｖ２）方向に長い長円形をなす。なお、図２〜図１２において、前記ホルダ部材１６の前記嵌合腕２６、前記嵌合凸部２７、前記固定部２８、前記嵌合孔２９、前記挿入孔３０の図示を省略して、前記ホルダ部材１６の前記保持部２１の外形を簡略化して図示してある。 As shown in FIGS. 7 to 10, 11 (B), and 12 (B), the cross-sectional shape of the insertion portion 22 of the holder member 16, that is, the holder member 16 is inserted into the mounting hole 34. The cross-sectional shape of the surface including the attachment hole 34 of the insertion portion 22 is circular. On the other hand, as shown in FIG. 7 to FIG. 10, FIG. 11 (A), and FIG. 12 (A), the mounting hole 34 has the line segments (the vertical axes V1-V1, V2-V2) whose both ends are semicircular. ) Make a long oval in the direction. 2 to 12, the fitting arm 26, the fitting convex portion 27, the fixing portion 28, the fitting hole 29, and the insertion hole 30 of the holder member 16 are omitted from illustration. The outer shape of the holding portion 21 of the holder member 16 is shown in a simplified manner.

前記取付部１７のうち前記取付孔３４の両脇には、平行な２本のリブ形状の当接部３５が前記線分（前記垂直軸Ｖ１−Ｖ１、Ｖ２−Ｖ２）方向に一体に設けられている。前記当接部３５は、前記ホルダ部材１６の前記保持部２１の前記当接面３２を前記スクリュー１４の軸回りに回転不可能にかつ前記線分（前記垂直軸Ｖ１−Ｖ１、Ｖ２−Ｖ２）方向に移動可能に挟み込んだ状態で当接するものである。 Two parallel rib-shaped contact portions 35 are integrally provided in the direction of the line segment (the vertical axes V1-V1, V2-V2) on both sides of the mounting hole 34 in the mounting portion 17. ing. The contact portion 35 is configured so that the contact surface 32 of the holding portion 21 of the holder member 16 cannot rotate around the axis of the screw 14 and the line segment (the vertical axes V1-V1, V2-V2). It abuts in a state of being sandwiched so as to be movable in the direction.

この実施例における車両用灯具（ヘッドランプ１）は、以上のごとき構成からなり、以下、その作用について説明する。 The vehicular lamp (headlamp 1) in this embodiment is configured as described above, and its operation will be described below.

まず、ヘッドランプ１の上下方向の光軸Ｚ−Ｚの初期設定について説明する。工具によりレベリング装置９のクラウンギア３６を手動により回転させる。すると、駆動力伝達機構の作用により、スクリュー１４は、ハウジング１３およびランプハウジング３に対して軸方向に移動（進退）することなく回転する。 First, the initial setting of the optical axis ZZ in the vertical direction of the headlamp 1 will be described. The crown gear 36 of the leveling device 9 is manually rotated by a tool. Then, due to the action of the driving force transmission mechanism, the screw 14 rotates without moving (advancing and retreating) in the axial direction with respect to the housing 13 and the lamp housing 3.

スクリュー１４が回転すると、スクリュー１４のネジ部２０にねじ込まれているピボット部材１５がねじ送り作用によりスクリュー１４の軸方向（図２〜図５中の水平な実線矢印方向）に移動する。このとき、ピボット部材１５を保持するホルダ部材１６もピボット部材１５と一体にスクリュー１４の軸方向（図２〜図５中の水平な実線矢印方向）に移動する。ピボット部材１５およびホルダ部材１６の移動により、リフレクタ５が水平軸Ｈ−Ｈ（ピボット機構８の中心（傾動取付部材の傾動中心）Ｏ）回りに図２中の実線で示す状態（リフレクタ５の光軸Ｚ−Ｚが上向きの状態）と二点鎖線で示す状態（図３中の実線で示す状態であって、リフレクタ５の光軸Ｚ−Ｚが下向きの状態）との間において上下に傾動（回転）して、ヘッドランプ１の上下方向の光軸Ｚ−Ｚの初期設定が行われる。 When the screw 14 rotates, the pivot member 15 screwed into the screw portion 20 of the screw 14 moves in the axial direction of the screw 14 (in the horizontal solid arrow direction in FIGS. 2 to 5) by the screw feeding action. At this time, the holder member 16 that holds the pivot member 15 also moves integrally with the pivot member 15 in the axial direction of the screw 14 (horizontal solid arrow direction in FIGS. 2 to 5). The movement of the pivot member 15 and the holder member 16 causes the reflector 5 to move around the horizontal axis HH (the center of the pivot mechanism 8 (the tilting center of the tilting mounting member) O) as shown by the solid line in FIG. Tilt up and down between the state indicated by the two-dot chain line (the state where the axis ZZ is upward) and the state indicated by the solid line in FIG. 3 (the state where the optical axis ZZ of the reflector 5 is downward) ( Rotation), the initial setting of the optical axis ZZ in the vertical direction of the headlamp 1 is performed.

ヘッドランプ１の上下方向の光軸Ｚ−Ｚの初期設定が完了して、ヘッドランプ１の光源６を点灯する。すると、光源６からの光（図示せず）は、所定の光軸Ｚ−Ｚに沿ってランプレンズ４を通して車両の前方に所定の配光パターン（たとえば、すれ違い用配光パターン、高速道路用配光パターン、走行用配光パターンなど）で照射される。 The initial setting of the vertical optical axis ZZ of the headlamp 1 is completed, and the light source 6 of the headlamp 1 is turned on. Then, light (not shown) from the light source 6 passes through the lamp lens 4 along a predetermined optical axis ZZ and passes a predetermined light distribution pattern (for example, a light distribution pattern for passing and a highway distribution). Light pattern, traveling light distribution pattern, etc.).

ここで、車両の姿勢が変化すると、オートレベリングシステムの制御装置が車両の姿勢の変化を検知してレベリング装置９のモータを駆動させる。モータが駆動すると、モータの駆動力（回転力）は、駆動力伝達機構を介してスクリュー１４に伝達される。すると、駆動力伝達機構の作用により、スクリュー１４は、ハウジング１３およびランプハウジング３に対して回転せずにスクリュー１４の軸方向（図２〜図５中の水平な実線矢印方向）に移動するだけである。 Here, when the posture of the vehicle changes, the control device of the auto leveling system detects the change in the posture of the vehicle and drives the motor of the leveling device 9. When the motor is driven, the driving force (rotational force) of the motor is transmitted to the screw 14 via the driving force transmission mechanism. Then, due to the action of the driving force transmission mechanism, the screw 14 does not rotate with respect to the housing 13 and the lamp housing 3 and only moves in the axial direction of the screw 14 (horizontal solid arrow direction in FIGS. 2 to 5). It is.

スクリュー１４が移動すると、ピボット部材１５およびホルダ部材１６がスクリュー１４の移動と一体にスクリュー１４の軸方向（図２〜図５中の水平な実線矢印方向）に移動する。これにより、リフレクタ５が水平軸Ｈ−Ｈ（ピボット機構８の中心（傾動取付部材の傾動中心）Ｏ）回りに図２中の実線で示す状態と二点鎖線で示す状態（図３中の実線で示す状態）との間において上下に傾動（回転）して、ヘッドランプ１の上下方向の光軸Ｚ−Ｚが車両の姿勢の変化に対応して自動的に調整される。 When the screw 14 moves, the pivot member 15 and the holder member 16 move in the axial direction of the screw 14 (horizontal solid arrow direction in FIGS. 2 to 5) together with the movement of the screw 14. As a result, the reflector 5 is in the state indicated by the solid line in FIG. 2 and the state indicated by the two-dot chain line (the solid line in FIG. 3) around the horizontal axis HH (the center of the pivot mechanism 8 (the tilting center of the tilting attachment member) O). The optical axis ZZ in the vertical direction of the headlamp 1 is automatically adjusted in response to a change in the posture of the vehicle.

ピボット部材１５とホルダ部材１６とがスクリュー１４の軸方向に移動する際には、図２〜図５、図７〜図１０に示すように、ピボット部材１５とホルダ部材１６とがリフレクタ５の取付部１７に対して、ピボット機構８の中心（傾動取付部材の傾動中心）Ｏとレベリング装置９の中心（ピボット部材１５の回転中心）Ｏ１、Ｏ２とを結ぶ線分（垂直軸Ｖ１−Ｖ１、Ｖ２−Ｖ２）方向（図２〜図５中の垂直な実線矢印方向）に移動する。 When the pivot member 15 and the holder member 16 move in the axial direction of the screw 14, the pivot member 15 and the holder member 16 are attached to the reflector 5 as shown in FIGS. 2 to 5 and 7 to 10. Line segments (vertical axes V1-V1, V2) connecting the center of the pivot mechanism 8 (the tilting center of the tilting mounting member) O and the centers of the leveling device 9 (rotation centers of the pivot member 15) O1, O2 with respect to the portion 17. -V2) direction (vertical solid arrow direction in FIGS. 2 to 5).

このとき、ホルダ部材１６の保持部２１の下面と係合爪３１の上面とが取付部１７の取付孔３４の縁に上下に挟み込んだ状態で、線分（垂直軸Ｖ１−Ｖ１、Ｖ２−Ｖ２）方向に移動可能に係合している。また、ホルダ部材１６の断面円形の挿入部２２が取付部１７の線分（垂直軸Ｖ１−Ｖ１、Ｖ２−Ｖ２）方向に長い長円形の取付孔３４に挿入されている。さらに、取付部１７の２本の当接部３５がホルダ部材１６の保持部２１の２面の当接面３２をスクリュー１４の軸回りに回転不可能にかつ線分（垂直軸Ｖ１−Ｖ１、Ｖ２−Ｖ２）方向に移動可能に挟み込んだ状態で当接する。この結果、ピボット部材１５とホルダ部材１６とは、スクリュー１４の軸方向の移動に伴って、線分（垂直軸Ｖ１−Ｖ１、Ｖ２−Ｖ２）方向（図２〜図５中の垂直な実線矢印方向）にスムーズに移動することができる。 At this time, in the state where the lower surface of the holding portion 21 of the holder member 16 and the upper surface of the engaging claw 31 are vertically sandwiched between the edges of the mounting hole 34 of the mounting portion 17, the line segments (vertical axes V1-V1, V2-V2 ) Is movably engaged in the direction. Further, the insertion portion 22 having a circular cross section of the holder member 16 is inserted into an oval attachment hole 34 that is long in the direction of the line segment (vertical axes V1-V1, V2-V2) of the attachment portion 17. Further, the two abutting portions 35 of the mounting portion 17 cannot rotate the two abutting surfaces 32 of the holding portion 21 of the holder member 16 around the axis of the screw 14 and are line segments (vertical axes V1-V1,. Abuts in a state of being movably sandwiched in the direction of V2-V2). As a result, the pivot member 15 and the holder member 16 move along the line segments (vertical axes V1-V1, V2-V2) (vertical solid arrows in FIGS. 2 to 5) as the screw 14 moves in the axial direction. Direction).

つぎに、ヘッドランプ１の左右方向の光軸Ｚ−Ｚの調整について説明する。左右方向用光軸調整機構１０は、レベリング装置９の構成とほぼ同様に、スクリューと、ピボット部材と、ホルダ部材と、取付部材としての取付部と、から構成されている。このために、スクリューを回転させると、ピボット部材がネジ送り作用でスクリューの軸方向に移動し、ホルダ部材もピボット部材と共にスクリューの軸方向に移動する。この結果、取付部を介してリフレクタ５がピボット機構８の中心（傾動取付部材の傾動中心）Ｏとレベリング装置９の中心（ピボット部材１５の回転中心）Ｏ１、Ｏ２とを結ぶ垂直軸Ｖ１−Ｖ１、Ｖ２−Ｖ２回りに左右に傾動（回転）して、ヘッドランプ１の左右方向の光軸Ｚ−Ｚの調整が行われる。 Next, adjustment of the optical axis ZZ in the left-right direction of the headlamp 1 will be described. The optical axis adjustment mechanism 10 for the left-right direction is configured by a screw, a pivot member, a holder member, and an attachment portion as an attachment member, almost the same as the configuration of the leveling device 9. For this reason, when the screw is rotated, the pivot member moves in the axial direction of the screw by a screw feeding action, and the holder member also moves in the axial direction of the screw together with the pivot member. As a result, the vertical axis V1-V1 connects the reflector 5 between the center of the pivot mechanism 8 (center of tilt of the tilt mounting member) O and the centers of the leveling device 9 (rotation centers of the pivot member 15) O1, O2 via the mounting portion. , Tilting (rotating) to the left and right around V2-V2, and the adjustment of the optical axis ZZ in the left-right direction of the headlamp 1 is performed.

また、左右方向用光軸調整機構１０におけるスクリュー、ピボット部材、ホルダ部材、取付部材としての取付部は、レベリング装置９におけるスクリュー１４、ピボット部材１５、ホルダ部材１６、取付部材としての取付部１７と同様の作用を果たす。 Further, the screw, pivot member, holder member, and attachment portion as the attachment member in the left-right optical axis adjustment mechanism 10 are the screw 14, pivot member 15, holder member 16, and attachment portion 17 as the attachment member in the leveling device 9. Performs the same function.

この実施例における車両用灯具（ヘッドランプ１）は、以上のごとき構成および作用からなり、以下、その効果について説明する。 The vehicular lamp (headlamp 1) in this embodiment is configured and operated as described above, and the effects thereof will be described below.

この実施例における車両用灯具（ヘッドランプ１）は、取付部１７の取付孔３４が線分（垂直軸Ｖ１−Ｖ１、Ｖ２−Ｖ２）方向に長い長円形をなす。このために、図４、図５、図７、図８に示すように、この取付孔３４中に挿入されているホルダ部材１６の断面円形の挿入部２２と、取付孔３４の半円形の両端の縁との間には、隙間Ｃが形成されている。この結果、ピボット部材１５とホルダ部材１６とがスクリュー１４の軸方向に移動する直線運動と、リフレクタ５および取付部１７が水平軸Ｈ−Ｈ（ピボット機構８の中心（傾動取付部材の傾動中心）Ｏ）回りに傾動（回転）する円運動との相違により、取付部１７の取付孔３４とホルダ部材１６の挿入部２２との挿入箇所に応力が発生しても、その応力は前記の隙間Ｃにより吸収される。これにより、応力により、リフレクタ５が変形して配光パターンが歪むのを防ぐことができ、また、リフレクタ５の取付部１７およびホルダ部材１６などの部品の歪みや損傷などを防ぐことができる。 In the vehicle lamp (headlamp 1) in this embodiment, the mounting hole 34 of the mounting portion 17 has an oval shape that is long in the direction of the line segment (vertical axes V1-V1, V2-V2). For this purpose, as shown in FIGS. 4, 5, 7, and 8, the insertion portion 22 having a circular cross section of the holder member 16 inserted into the attachment hole 34 and the semicircular ends of the attachment hole 34 are provided. A gap C is formed between the two edges. As a result, the linear movement in which the pivot member 15 and the holder member 16 move in the axial direction of the screw 14 and the reflector 5 and the mounting portion 17 are in the horizontal axis HH (the center of the pivot mechanism 8 (the tilting center of the tilting mounting member). O) Even if a stress is generated at the insertion position between the mounting hole 34 of the mounting portion 17 and the insertion portion 22 of the holder member 16 due to the difference from the circular motion that tilts (rotates) around the stress, the stress is still in the gap C. Is absorbed by. Thereby, it can prevent that the reflector 5 deform | transforms and a light distribution pattern is distorted by stress, and distortion, damage, etc. of components, such as the attaching part 17 of the reflector 5, and the holder member 16, can be prevented.

しかも、この実施例における車両用灯具（ヘッドランプ１）は、長円形の取付孔３４に挿入されているホルダ部材１６の挿入部２２の取付孔３４を含む面における断面形状が円であるから、挿入部３７の断面形状が長方形（短辺が円の直径と等しい長方形）の車両用灯具と比較すると、ホルダ部材１６および取付部１７を小型化することができる。すなわち、図１３に示すように、円形の挿入部２２の直径に対して、長方形の挿入部３７の長辺が寸法Ｔ３分長い。このために、図１４に示すように、円形の挿入部２２が挿入する長円形の取付孔３４の寸法に対して、長方形の挿入部３７が挿入する取付孔３８の長辺が同じく寸法Ｔ３分長い。なお、円形の挿入部２２が長円形の取付孔３４中を移動する寸法Ｔ４と、長方形の挿入部３７が取付孔３８中を移動する寸法Ｔ４とは、同寸とする。この結果、円形の挿入部２２のこの実施例における車両用灯具（ヘッドランプ１）は、長方形の挿入部３７の車両用灯具と比較して、ホルダ部材１６および取付部１７を小型化することができる。 Moreover, the vehicular lamp (headlamp 1) in this embodiment has a circular cross-sectional shape on the surface including the mounting hole 34 of the insertion portion 22 of the holder member 16 inserted into the elliptical mounting hole 34. The holder member 16 and the mounting portion 17 can be reduced in size as compared with a vehicular lamp whose cross-sectional shape of the insertion portion 37 is rectangular (a rectangle whose short side is equal to the diameter of the circle). That is, as shown in FIG. 13, the long side of the rectangular insertion portion 37 is longer than the diameter of the circular insertion portion 22 by the dimension T3. For this reason, as shown in FIG. 14, the long side of the mounting hole 38 into which the rectangular insertion portion 37 is inserted has the same dimension T3 as the size of the oval mounting hole 34 into which the circular insertion portion 22 is inserted. long. The dimension T4 for moving the circular insertion portion 22 in the oval mounting hole 34 is the same as the dimension T4 for moving the rectangular insertion portion 37 in the mounting hole 38. As a result, the vehicular lamp (headlamp 1) in this embodiment having the circular insertion portion 22 can be reduced in size in the holder member 16 and the mounting portion 17 compared to the vehicular lamp in the rectangular insertion portion 37. it can.

また、この実施例における車両用灯具（ヘッドランプ１）は、図１５に示すように、挿入部３９の断面形状が正方形（一辺が円の直径と等しい正方形）の車両用灯具と比較する。すると、円形の挿入部２２の直径の長さＴ５と正方形の挿入部３９の一辺の長さＴ５とが等しいので、両者とも、ホルダ部材１６および取付部１７を同じく小型化することができる。ところが、図１６に示すように、正方形の挿入部３９が挿入する長方形の取付孔４０（図１６中の二点鎖線で示す取付孔）には４つの角部があるために、その角部に応力が集中し易く、その角部に割れなど４１が発生し易い。一方、円形の挿入部２２が挿入する長円形の取付孔３４（図１６中の実線で示す取付孔）には角部が無い。その上、長円形の取付孔３４の円弧の外側の部分、すなわち、長方形の取付孔４０の４つの角部に囲まれた部分（図１６中の斜線が施されている部分）には、取付部１７（リフレクタ５）を構成する素材（たとえば、合成樹脂）が充填されているので、強度が向上され、部品の高耐久性を図ることができる。 Further, as shown in FIG. 15, the vehicular lamp (headlamp 1) in this embodiment is compared with a vehicular lamp in which the cross-sectional shape of the insertion portion 39 is square (a square whose one side is equal to the diameter of the circle) . To the so equal to one side of the length T5 circular insertion portion 22 of diameter length T5 and the square of the insertion portion 39, both the holder member 16 and the mounting portion 17 also can be miniaturized. However, as shown in FIG. 16, there are four corners in the rectangular mounting hole 40 (the mounting hole indicated by the two-dot chain line in FIG. 16) into which the square insertion portion 39 is inserted. Stress tends to concentrate and cracks 41 are likely to occur at the corners. On the other hand, the oval mounting hole 34 (the mounting hole indicated by the solid line in FIG. 16) into which the circular insertion portion 22 is inserted has no corners. In addition, the outer part of the arc of the oval mounting hole 34, that is, the part surrounded by the four corners of the rectangular mounting hole 40 (the part hatched in FIG. 16) is attached to the part. Since the material (for example, synthetic resin) which comprises the part 17 (reflector 5) is filled, intensity | strength is improved and the high durability of components can be aimed at.

さらに、この実施例における車両用灯具（ヘッドランプ１）は、ホルダ部材１６および取付部１７を小型化することができるものであるから、光軸調整装置７のレイアウトの制限を小さくし、光軸調整装置７の自由なレイアウトが得られる。たとえば、図１７（Ａ）に示すように、リフレクタ５を、角度θ°の範囲、すなわち、ピボット機構８の中心Ｏとレベリング装置９の中心（ピボット部材１５の回転中心）Ｏ１、Ｏ２とを結ぶ線分Ｖ−Ｖ（地表に対して垂直な線分）とＶ３−Ｖ３とのなす角度θ°の範囲で、上下方向に光軸調整を行った場合、レベリング装置９の中心（ピボット部材１５の回転中心）Ｏ１、Ｏ２の垂直方向の移動量（ピボット部材１５およびホルダ部材１６の垂直方向の移動量）がＨ１となる。一方、図１７（Ｂ）に示すように、リフレクタ５を、角度θ°の範囲、すなわち、ピボット機構８の中心Ｏとレベリング装置９の中心（ピボット部材１５の回転中心）Ｏ１、Ｏ２とを結ぶ線分Ｖ１−Ｖ１とＶ２−Ｖ２とのなす角度θ°の範囲で、上下方向に光軸調整を行った場合、レベリング装置９の中心（ピボット部材１５の回転中心）Ｏ１、Ｏ２の垂直方向の移動量（ピボット部材１５およびホルダ部材１６の垂直方向の移動量）がＨ２となる。ここで、図１７（Ａ）に示す線分Ｖ−Ｖと図１７（Ｂ）に示す線分Ｖ１−Ｖ１とは、ピボット機構８の中心Ｏを中心としてθ１°傾斜している。 Furthermore, since the vehicular lamp (headlamp 1) in this embodiment can reduce the size of the holder member 16 and the mounting portion 17, the restriction on the layout of the optical axis adjusting device 7 can be reduced, and the optical axis can be reduced. A free layout of the adjusting device 7 can be obtained. For example, as shown in FIG. 17A, the reflector 5 is connected in the range of the angle θ °, that is, the center O of the pivot mechanism 8 and the centers (rotation centers of the pivot member 15) O1, O2 of the leveling device 9. When the optical axis is adjusted in the vertical direction within the range of the angle θ ° formed by the line segment V-V (line segment perpendicular to the ground surface) and V3-V3, the center of the leveling device 9 (the pivot member 15 The amount of vertical movement of O1, O2 (the amount of vertical movement of the pivot member 15 and the holder member 16) is H1. On the other hand, as shown in FIG. 17B, the reflector 5 is connected to the range of the angle θ °, that is, the center O of the pivot mechanism 8 and the centers (rotation centers of the pivot member 15) O1, O2 of the leveling device 9. When the optical axis is adjusted in the vertical direction within the range of the angle θ ° formed by the line segments V1-V1 and V2-V2, the center of the leveling device 9 (rotation center of the pivot member 15) O1, O2 in the vertical direction The amount of movement (the amount of movement of the pivot member 15 and the holder member 16 in the vertical direction) is H2. Here, the line segment VV shown in FIG. 17A and the line segment V1-V1 shown in FIG. 17B are inclined by θ1 ° with the center O of the pivot mechanism 8 as the center.

このように、図１７（Ａ）、（Ｂ）から明らかなように、リフレクタ５を地表に対して垂直軸近傍において上下方向に傾動させた場合のピボット部材１５およびホルダ部材１６の垂直方向の移動量Ｈ１が小さく、一方、リフレクタ５を地表に対して水平軸近傍において上下方向に傾動させた場合のピボット部材１５およびホルダ部材１６の垂直方向の移動量Ｈ２が大きい。このために、ホルダ部材１６および取付部１７が大型であると、リフレクタ５を地表に対して水平軸近傍において上下方向に傾動させると、灯具全体が大型化する。これに対して、この実施例における車両用灯具（ヘッドランプ１）は、ホルダ部材１６および取付部１７が小型であるから、リフレクタ５を地表に対して水平軸近傍において上下方向に傾動させても、灯具全体を小型化のままに維持することができる。この結果、この実施例における車両用灯具（ヘッドランプ１）は、光軸調整装置７のレイアウトの制限を小さくし、光軸調整装置７の自由なレイアウトが得られる。 As can be seen from FIGS. 17A and 17B, the pivot member 15 and the holder member 16 move in the vertical direction when the reflector 5 is tilted in the vertical direction in the vicinity of the vertical axis with respect to the ground surface. On the other hand, the amount H2 of vertical movement of the pivot member 15 and the holder member 16 when the reflector 5 is tilted in the vertical direction near the horizontal axis with respect to the ground surface is large. For this reason, if the holder member 16 and the attachment portion 17 are large, when the reflector 5 is tilted in the vertical direction in the vicinity of the horizontal axis with respect to the ground surface, the entire lamp is enlarged. On the other hand, in the vehicle lamp (headlamp 1) in this embodiment, the holder member 16 and the mounting portion 17 are small, so that even if the reflector 5 is tilted up and down in the vicinity of the horizontal axis with respect to the ground surface. The whole lamp can be kept small. As a result, the vehicular lamp (headlamp 1) in this embodiment reduces the restriction on the layout of the optical axis adjusting device 7 and provides a free layout of the optical axis adjusting device 7.

また、この実施例における車両用灯具（ヘッドランプ１）は、ピボット部材１５がスクリュー１４にネジ装着されていてかつホルダ部材１６の保持部２１にスクリュー１４の軸回りに回転不可能に保持されていて、一方、ホルダ部材１６の保持部２１が取付部１７の当接部３５にスクリュー１４の軸回りに回転不可能にかつ線分（垂直軸Ｖ１−Ｖ１、Ｖ２−Ｖ２）方向に移動可能に当接している。このために、この実施例における車両用灯具（ヘッドランプ１）は、ホルダ部材１６の挿入部２２の断面形状が円であっても、スクリュー１４を回転させてピボット部材１５をネジ送り作用によりスクリュー１４の軸方向に移動させる際に、ピボット部材１５とホルダ部材１６とが一体となって（ピボット部材１５とホルダ部材１６とは、ピボット部材１５の回転止め部１９とホルダ部材１６の回転止め部１９とにより、スクリュー１４の軸回りに回転不可能の状態にある）スクリュー１４の回転とともにスクリュー１４の軸回りに回転することが無い。これにより、この実施例における車両用灯具（ヘッドランプ１）は、スクリュー１４を回転させることにより、ピボット部材１５をネジ送り作用でスクリュー１４の軸方向に確実に移動させることができ、かつ、このピボット部材１５のスクリュー１４の軸方向の移動に伴ってホルダ部材１６もスクリュー１４の軸方向に確実に移動する。この結果、この実施例における車両用灯具（ヘッドランプ１）は、ランプハウジング３に対してリフレクタ５を水平軸Ｈ−Ｈ回りに（ピボット機構８の中心（傾動取付部材の傾動中心）Ｏを中心として）確実に傾動させることができる。 In the vehicle lamp (headlamp 1) in this embodiment, the pivot member 15 is screwed to the screw 14 and is held by the holding portion 21 of the holder member 16 so as not to rotate around the axis of the screw 14. On the other hand, the holding part 21 of the holder member 16 cannot rotate around the axis of the screw 14 to the contact part 35 of the mounting part 17 and can move in the direction of the line segment (vertical axes V1-V1, V2-V2). It is in contact. Therefore, in the vehicle lamp (headlamp 1) in this embodiment, even if the cross-sectional shape of the insertion portion 22 of the holder member 16 is a circle, the screw 14 is rotated and the pivot member 15 is screwed by a screw feeding action. 14, the pivot member 15 and the holder member 16 are integrated with each other (the pivot member 15 and the holder member 16 are an anti-rotation portion 19 of the pivot member 15 and an anti-rotation portion of the holder member 16). 19, the rotation of the screw 14 does not rotate around the axis of the screw 14. As a result, the vehicle lamp (headlamp 1) in this embodiment can reliably move the pivot member 15 in the axial direction of the screw 14 by the screw feeding action by rotating the screw 14. As the pivot member 15 moves in the axial direction of the screw 14, the holder member 16 also moves reliably in the axial direction of the screw 14. As a result, the vehicular lamp (headlamp 1) in this embodiment has the reflector 5 relative to the lamp housing 3 around the horizontal axis HH (center of pivot mechanism 8 (center of tilt of tilt mounting member) O). Can be tilted reliably.

しかも、この実施例における車両用灯具（ヘッドランプ１）は、ホルダ部材１６の保持部２１が取付部１７の当接部３５に挟み込まれた状態で当接するので、ホルダ部材１６の保持部２１の線分（垂直軸Ｖ１−Ｖ１、Ｖ２−Ｖ２）方向の寸法すなわち固定部２８間の寸法Ｔ２と、線分方向（垂直軸Ｖ１−Ｖ１、Ｖ２−Ｖ２）と直交する方向すなわち当接部３５により挟み込まれる当接面３２間の寸法Ｔ１と、を変えると、ホルダ部材１６の挿入部２２を取付部１７の取付孔３４に挿入してホルダ部材１６を取付部１７に取り付ける際に、ホルダ部材１６の挿入部２２の断面形状が円であっても、ホルダ部材１６を取付部１７に誤組付することなく正規の位置に取り付けることができ、ホルダ部材１６を取付部１７に確実に取り付けることができる。すなわち、図６に示すように、ホルダ部材１６の断面円形の挿入部２２に２個の係合爪部３１、３１がホルダ部材１６の保持部２１の当接面３２に対して直交する方向に設けられている場合において、誤組付すると、ホルダ部材１６の保持部２１の下面と係合爪３１の上面とが取付部１７の取付孔３４の縁に上下に挟み込んだ状態で係合されない。すると、ホルダ部材１６が取付部１７に対して線分（前記垂直軸Ｖ１−Ｖ１、Ｖ２−Ｖ２）方向に確実に移動することが困難となる。しかしながら、この実施例における車両用灯具（ヘッドランプ１）は、誤組付がないので、ホルダ部材１６が取付部１７に対して線分（前記垂直軸Ｖ１−Ｖ１、Ｖ２−Ｖ２）方向に確実に移動することが可能である。 In addition, the vehicular lamp (headlamp 1) in this embodiment abuts in a state where the holding portion 21 of the holder member 16 is sandwiched by the abutting portion 35 of the mounting portion 17, so that the holding portion 21 of the holder member 16 The dimension in the direction of the line segment (vertical axes V1-V1, V2-V2), that is, the dimension T2 between the fixed portions 28, and the direction orthogonal to the direction of the line segment (vertical axes V1-V1, V2-V2), that is, the contact portion 35 When the dimension T1 between the contact surfaces 32 to be sandwiched is changed, the holder member 16 is inserted into the mounting portion 17 by inserting the insertion portion 22 of the holder member 16 into the mounting hole 34 of the mounting portion 17. Even if the cross-sectional shape of the insertion portion 22 is a circle, the holder member 16 can be attached to a proper position without being erroneously assembled to the attachment portion 17, and the holder member 16 can be securely attached to the attachment portion 17. so That. That is, as shown in FIG. 6, the two engaging claws 31, 31 in the insertion portion 22 having a circular cross section of the holder member 16 are perpendicular to the contact surface 32 of the holding portion 21 of the holder member 16. In the case where it is provided, if it is incorrectly assembled, the lower surface of the holding portion 21 of the holder member 16 and the upper surface of the engaging claw 31 are not engaged with each other while being vertically sandwiched between the edges of the mounting hole 34 of the mounting portion 17. Then, it becomes difficult for the holder member 16 to reliably move in the direction of the line segment (the vertical axes V1-V1, V2-V2) with respect to the mounting portion 17. However, since the vehicular lamp (headlamp 1) in this embodiment is not erroneously assembled, the holder member 16 is reliably in the direction of the line segment (the vertical axes V1-V1, V2-V2) with respect to the mounting portion 17. It is possible to move on.

さらに、この実施例における車両用灯具（ヘッドランプ１）は、ホルダ部材１６が、スクリュー１４の軸方向に対称である２個の部品２５、２５を、ピボット部材１５を挟み込んだ状態で締結してなる２ピースタイプのホルダ部材である。このために、この実施例における車両用灯具（ヘッドランプ１）は、１ピースタイプのホルダ部材にピボット部材を圧入する車両用灯具と比較して、ホルダ部材１６とピボット部材１５との間の抵抗が少なくすることができるので、ピボット部材１５がホルダ部材１５に対してピボット部材１５の中心Ｏ１、Ｏ２を中心としてスムーズに回転することができ、その結果、ヘッドランプ１の光軸Ｚ−Ｚスムーズに調整することができる。 Further, in the vehicle lamp (headlamp 1) in this embodiment, the holder member 16 fastens the two parts 25 and 25 that are symmetrical in the axial direction of the screw 14 with the pivot member 15 sandwiched therebetween. This is a two-piece type holder member. For this reason, the vehicle lamp (headlamp 1) in this embodiment has a resistance between the holder member 16 and the pivot member 15 as compared with the vehicle lamp in which the pivot member is press-fitted into the one-piece type holder member. Therefore, the pivot member 15 can smoothly rotate with respect to the holder member 15 about the centers O1 and O2 of the pivot member 15, and as a result, the optical axis ZZ of the headlamp 1 can be smoothly smoothed. Can be adjusted.

しかも、この実施例における車両用灯具（ヘッドランプ１）は、ホルダ部材１６の保持部２１の当接面３２が取付部１７の当接部３５に挟み込まれた状態で当接するので、ホルダ部材１６が、スクリュー１４の軸方向に対称である２個の部品２５、２５を、ピボット部材１５を挟み込んだ状態で締結してなる２ピースタイプのホルダ部材であっても、ホルダ部材１６が２ピースに分割するのを取付部１７の当接部３５とホルダ部材１６の当接面３２との当接により確実に防止することができる。この結果、この実施例における車両用灯具（ヘッドランプ１）は、２ピースタイプのホルダ部材１６をしようしても、なんら問題が無く、しかも、スムーズに光軸調整を行うことができる。 Moreover, the vehicle lamp (headlamp 1) in this embodiment abuts in a state where the abutment surface 32 of the holding portion 21 of the holder member 16 is sandwiched by the abutment portion 35 of the mounting portion 17, so that the holder member 16 However, even if it is a two-piece type holder member formed by fastening two parts 25, 25 that are symmetrical in the axial direction of the screw 14 with the pivot member 15 sandwiched therebetween, the holder member 16 is divided into two pieces. The division can be reliably prevented by the contact between the contact portion 35 of the mounting portion 17 and the contact surface 32 of the holder member 16. As a result, the vehicular lamp (headlamp 1) in this embodiment has no problem even when the two-piece type holder member 16 is used, and can smoothly adjust the optical axis.

左右方向用光軸調整機構１０は、レベリング装置９の構成とほぼ同様に、スクリューと、ピボット部材と、ホルダ部材と、取付部材としての取付部と、から構成されている。このために、左右方向用光軸調整機構１０におけるスクリュー、ピボット部材、ホルダ部材、取付部材としての取付部は、レベリング装置９におけるスクリュー１４、ピボット部材１５、ホルダ部材１６、取付部材としての取付部１７と同様の効果を達成することができる。 The optical axis adjustment mechanism 10 for the left-right direction is configured by a screw, a pivot member, a holder member, and an attachment portion as an attachment member, almost the same as the configuration of the leveling device 9. For this reason, the screw, pivot member, holder member, and attachment portion as the attachment member in the optical axis adjustment mechanism 10 for the left and right direction are the screw 14, pivot member 15, holder member 16, and attachment portion as the attachment member in the leveling device 9. The effect similar to 17 can be achieved.

なお、前記の実施例においては、車両用灯具としてヘッドランプ１について説明する。ところが、この発明においては、ヘッドランプ１以外の車両用灯具たとえばフォグランプなどにも適用することができる。 In the above embodiment, the headlamp 1 will be described as a vehicle lamp. However, the present invention can also be applied to vehicle lamps other than the headlamp 1, such as fog lamps.

また、前記の実施例においては、ランプハウジング３が固定部材であり、リフレクタ５が傾動部材である。ところが、この発明においては、固定部材として車体とし、傾動部材としてランプユニットとしても良いし、また、固定部材としてランプハウジングとし、傾動部材として１個もしくは複数個のランプユニットを取り付けた取付ブラケットとしても良い。ここで、前記ランプユニットは、たとえば、プロジェクタタイプやリフレクタタイプ（反射タイプ）や直射タイプなどある。また、前記ランプユニットは、光源（図示せず）からの光（図示せず）を所定の光軸（図示せず）に沿って前記ランプレンズ４を通して車両の前方に所定の配光パターン（図示せず）で照射する。 Moreover, in the said Example, the lamp housing 3 is a fixing member and the reflector 5 is a tilting member. However, in the present invention, the fixing member may be a vehicle body, the tilting member may be a lamp unit, or the fixing member may be a lamp housing, and the mounting member may be one or more lamp units attached to the tilting member. good. Here, examples of the lamp unit include a projector type, a reflector type (reflection type), and a direct-light type. In addition, the lamp unit emits light (not shown) from a light source (not shown) along a predetermined optical axis (not shown) through the lamp lens 4 to the front of the vehicle. (Not shown).

さらに、前記の実施例においては、レベリング装置９のクラウンギア３６を用いてスクリュー１４を手動により回転させて光軸調整できるようにしたものである。ところが、この発明においては、モータの駆動によりスクリュー１４（シャフト）を介して光軸調整を行って、手動によりスクリュー１４を回転させて光軸調整を行わなくても良い。 Further, in the above embodiment, the optical axis can be adjusted by manually rotating the screw 14 using the crown gear 36 of the leveling device 9. However, in the present invention, it is not necessary to adjust the optical axis through the screw 14 (shaft) by driving the motor and manually adjust the optical axis by rotating the screw 14.

さらにまた、前記の実施例においては、レベリング装置９により上下方向の光軸調整を行うものである。ところが、この発明においては、レベリング装置９を使用せずに、手動によりスクリューを回転させて上下方向の光軸調整を行っても良い。 Furthermore, in the above-described embodiment, the optical axis adjustment in the vertical direction is performed by the leveling device 9. However, in the present invention, the optical axis adjustment in the vertical direction may be performed by manually rotating the screw without using the leveling device 9.

さらにまた、前記の実施例においては、ホルダ部材１６として２個の部品２５、２５を組み付けてなる２ピースタイプのホルダ部材を使用するものである。ところが、この発明においては、１ピースタイプのホルダ部材を使用しても良い。 Furthermore, in the above-described embodiment, a two-piece type holder member in which two parts 25 and 25 are assembled as the holder member 16 is used. However, in the present invention, a one-piece type holder member may be used.

この発明にかかる車両用灯具の実施例を示すヘッドランプの正面図である。It is a front view of the headlamp which shows the Example of the vehicle lamp concerning this invention. 同じく、リフレクタの光軸が上向きの状態を示す図１におけるＩＩ−ＩＩ線断面図である。Similarly, it is the II-II sectional view taken on the line in FIG. 1 which shows the state with the optical axis of a reflector facing upward. 同じく、リフレクタの光軸が下向きに傾動させた状態を示す図１におけるＩＩ−ＩＩ線断面図である。Similarly, it is the II-II sectional view taken on the line in FIG. 1 which shows the state which the optical axis of the reflector tilted downward. 同じく、図２におけるレベリング装置のスクリュー、ピボット部材、ホルダ部材、取付部を示す一部拡大断面図であって、図７におけるＩＶ−ＩＶ線断面図あるいは図９におけるＶＩ−ＶＩ線断面図である。Similarly, it is a partially enlarged sectional view showing a screw, a pivot member, a holder member, and an attaching portion of the leveling device in FIG. 2, and is a sectional view taken along line IV-IV in FIG. 7 or a sectional view taken along line VI-VI in FIG. . 同じく、図３におけるレベリング装置のスクリュー、ピボット部材、ホルダ部材、取付部を示す一部拡大断面図であって、図８におけるＶ−Ｖ線断面図あるいは図１０におけるＶ−Ｖ線断面図である。Similarly, it is a partially expanded sectional view showing a screw, a pivot member, a holder member, and an attaching portion of the leveling device in FIG. 3, and is a sectional view taken along line VV in FIG. 8 or a sectional view taken along line VV in FIG. . 同じく、レベリング装置のスクリュー、ピボット部材、ホルダ部材、取付部を示す一部拡大断面図であって、図７におけるＶＩ−ＶＩ線断面図あるいは図９におけるＶＩ−ＶＩ線断面図である。Similarly, it is a partially expanded sectional view showing a screw, a pivot member, a holder member, and an attachment part of the leveling device, and is a sectional view taken along line VI-VI in FIG. 7 or a sectional view taken along line VI-VI in FIG. 同じく、図４におけるＶＩＩ矢視図である。Similarly, it is a VII arrow line view in FIG. 同じく、図５におけるＶＩＩＩ矢視図である。Similarly, it is a VIII arrow line view in FIG. 同じく、図４におけるＩＸ矢視図である。Similarly, it is the IX arrow line view in FIG. 同じく、図５におけるＸ矢視図である。Similarly, it is a view on arrow X in FIG. 同じく、図７および図８のピボット部材およびホルダ部材と取付部とを分解した状態を示す説明図である。Similarly, it is explanatory drawing which shows the state which decomposed | disassembled the pivot member and holder member, and attachment part of FIG. 7 and FIG. 同じく、図９および図１０のピボット部材およびホルダ部材と取付部とを分解した状態を示す説明図である。Similarly, it is explanatory drawing which shows the state which decomposed | disassembled the pivot member and holder member, and attachment part of FIG. 9 and FIG. 同じく、円形の挿入部と長方形の挿入部との寸法差を示す説明図である。Similarly, it is explanatory drawing which shows the dimensional difference of a circular insertion part and a rectangular insertion part. 同じく、円形の挿入部が挿入される取付孔と長方形の挿入部が挿入される取付孔との寸法差を示す説明図である。Similarly, it is explanatory drawing which shows the dimensional difference of the attachment hole in which a circular insertion part is inserted, and the attachment hole in which a rectangular insertion part is inserted. 同じく、円形の挿入部と正方形の挿入部との同寸法を示す説明図である。Similarly, it is explanatory drawing which shows the same dimension of a circular insertion part and a square insertion part. 同じく、円形の挿入部が挿入される長円形の取付孔と正方形の挿入部が挿入される長方形の取付孔との長短を示す説明図である。Similarly, it is explanatory drawing which shows the length of the oblong attachment hole in which a circular insertion part is inserted, and the rectangular attachment hole in which a square insertion part is inserted. 同じく、リフレクタの傾動させる位置とピボット部材およびホルダ部材の移動量との相対関係を示す説明図である。Similarly, it is explanatory drawing which shows the relative relationship between the position to which a reflector tilts, and the movement amount of a pivot member and a holder member. 同じく、ピボット部材と２ピースタイプのホルダ部材の２個の部品との分解状態を示す正面図である。Similarly, it is a front view which shows the decomposition | disassembly state of two components of a pivot member and a 2 piece type holder member. 同じく、ピボット部材と２ピースタイプのホルダ部材の２個の部品との組付状態を示す正面図である。Similarly, it is a front view which shows the assembly | attachment state of two components of a pivot member and a 2 piece type holder member. 同じく、ピボット部材と２ピースタイプのホルダ部材の２個の部品との分解状態を示す平面図である。Similarly, it is a top view which shows the decomposition | disassembly state of two parts of a pivot member and a 2 piece type holder member. 同じく、ピボット部材と２ピースタイプのホルダ部材の２個の部品との組付状態を示す平面図である。Similarly, it is a top view which shows the assembly | attachment state of two components of a pivot member and a 2 piece type holder member.

Explanation of symbols

１ヘッドランプ（車両用灯具）
２灯室
３ランプハウジング（固定部材）
４ランプレンズ
５リフレクタ（傾動部材）
６光源
７光軸調整装置
８ピボット機構（傾動取付部材）
９レベリング装置（上下用光軸調整機構）
１０左右用光軸調整機構
１１球軸部
１２球軸受部
１３ハウジング
１４スクリュー（傾動操作シャフト）
１５ピボット部材
１６ホルダ部材
１７取付部（取付部材）
１８ネジ孔
１９回転止め部
２０ネジ部
２１保持部
２２円形の挿入部
２３回転止め部
２４透孔
２５、２５２個の部品
２６嵌合腕
２７嵌合凸部
２８固定部
２９嵌合孔
３０挿入孔
３１係合爪部
３２当接面
３４取付孔
３５当接部
３６クラウンギア
３７長方形の挿入部
３８長方形の取付孔
３９正方形の挿入部
４０長方形の取付孔
４１割れなど
Ｃ隙間
Ｓ分割面
Ｏピボット機構の中心（傾動取付部材の傾動中心）
ＯＨ左右方向用光軸調整機構の中心（ピボット部材の回転中心）
Ｏ１、Ｏ２レベリング装置の中心（ピボット部材の回転中心）
Ｚ−Ｚ光軸
Ｈ−Ｈ水平軸
Ｖ−Ｖ垂直軸
Ｖ１−Ｖ１垂直軸
Ｖ２−Ｖ２垂直軸
Ｖ３−Ｖ３垂直軸
Ｔ１当接面の間の距離
Ｔ２固定部の間の距離
Ｔ３円形の挿入部と長方形の挿入部との寸法差
Ｔ４ピボット部材およびホルダ部材の移動量
Ｔ５円形の挿入部の外径の寸法および正方形の挿入部の一辺の寸法 1 Headlamp (vehicle lamp)
2 Lamp chamber 3 Lamp housing (fixing member)
4 Lamp lens 5 Reflector (tilting member)
6 Light source 7 Optical axis adjustment device 8 Pivot mechanism (tilting attachment member)
9 Leveling device (up / down optical axis adjustment mechanism)
DESCRIPTION OF SYMBOLS 10 Left and right optical axis adjustment mechanism 11 Ball shaft part 12 Ball bearing part 13 Housing 14 Screw (tilting operation shaft)
15 Pivot member 16 Holder member 17 Attachment part (attachment member)
DESCRIPTION OF SYMBOLS 18 Screw hole 19 Anti-rotation part 20 Screw part 21 Holding part 22 Circular insertion part 23 Anti-rotation part 24 Through-hole 25, 25 Two components 26 Fitting arm 27 Fitting convex part 28 Fixing part 29 Fitting hole 30 Insertion Hole 31 Engaging claw part 32 Contact surface 34 Attachment hole 35 Contact part 36 Crown gear 37 Rectangular insertion part 38 Rectangular attachment hole 39 Square insertion part 40 Rectangular attachment hole 41 Crack etc. C Clearance S Dividing surface O Pivot Center of mechanism (center of tilt of tilt mounting member)
OH Center of optical axis adjustment mechanism for left and right direction (rotation center of pivot member)
Center of O1, O2 leveling device (rotation center of pivot member)
ZZ Optical axis HH Horizontal axis VV Vertical axis V1-V1 Vertical axis V2-V2 Vertical axis V3-V3 Vertical axis T1 Distance between contact surfaces T2 Distance between fixed parts T3 Circular insertion part Difference between the rectangular insertion portion and the rectangular insertion portion T4 Movement amount of the pivot member and the holder member T5 Dimension of the outer diameter of the circular insertion portion and dimension of one side of the square insertion portion

Claims

In a vehicular lamp provided with an optical axis adjusting device,
A fixing member;
A tilting member;
An optical axis adjusting device that adjusts the optical axis of the tilting member by tilting the tilting member with respect to the fixed member;
With
The optical axis adjusting device is
A tilt mounting member for tiltably mounting the tilt member to the fixing member;
A tilting operation shaft provided on the fixing member and tilting the tilting member about the tilting center of the tilting mounting member with respect to the fixing member;
A pivot member that is provided on the tilt operation shaft and moves in an axial direction of the tilt operation shaft by operation of the tilt operation shaft;
A holding portion that holds the pivot member rotatably about the center of the pivot member, and an engaging claw portion in a direction orthogonal to a direction of a line segment that connects the tilt center of the tilt mounting member and the rotation center of the pivot member And a holder member that moves in the axial direction of the tilt operation shaft together with the pivot member,
Provided in the tilting member, having an attachment hole, the insertion portion being inserted into the attachment hole , and the holding portion and the engaging claw portion of the holder member at the edge of the attachment hole a mounting member which bets are movably mounted the line segment direction is sandwiched state,
Consists of
Sectional shape in a plane including the attachment hole before Ki挿 join the club is a circular,
The mounting hole has a long oval shape in the line segment direction in which both ends are semicircular.
A vehicular lamp characterized by the above.

The tilt operation shaft is a screw rotatably provided on the fixing member,
The pivot member is screwed to the screw,
The holder member is in the form with the holding portion for holding said pivot member non-rotatably about the axis of the screw, and the insertion portion, but an integral structure,
On both sides of the mounting hole of the mounting member, there are contact parts that contact the holding part in a state where the holding part is sandwiched so as not to rotate around the screw axis and to move in the line segment direction. Provided in the minute direction,
The vehicular lamp according to claim 1.

The holder member is a two-piece type holder member formed by fastening two parts that are symmetrical in the axial direction of the screw with the pivot member being sandwiched therebetween.
The vehicular lamp according to claim 2.