JP3331074B2 - Headlight optical axis adjustment device - Google Patents
Headlight optical axis adjustment deviceInfo
- Publication number
- JP3331074B2 JP3331074B2 JP29963494A JP29963494A JP3331074B2 JP 3331074 B2 JP3331074 B2 JP 3331074B2 JP 29963494 A JP29963494 A JP 29963494A JP 29963494 A JP29963494 A JP 29963494A JP 3331074 B2 JP3331074 B2 JP 3331074B2
- Authority
- JP
- Japan
- Prior art keywords
- housing
- optical axis
- headlight
- bevel gear
- fitted
- 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 - Fee Related
Links
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、車両に装着されるヘッ
ドライトの光軸調整を行うヘッドライトの光軸調整装置
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for adjusting the optical axis of a headlight mounted on a vehicle.
【０００２】[0002]
【従来の技術】従来、ヘッドライトの光軸調整装置は図
５、図６に知られる直交タイプ（車体上方向からドライ
バーを挿入して調整する）ものが一般的によく知られて
おり、図５に示されるものは、ヘッドライト取付フレー
ムにヘッドライトＨの支点Ｐを支持させるとともに、ヘ
ッドライトＨの一側上部に形成されるピボット受Ｌに
は、車体側に取り付けられるウォーム歯車機構３０によ
り進退動されるねじ杆３１のピボット部３２が揺動自
在、且つ軸回転しないように嵌着されている。また前記
ねじ杆３１はその雄ねじ部３３をウォーム歯車３４の軸
孔に形成される雌ねじ部３５に螺合されている。そして
ヘッドライトＨの光軸調整を行う際は、ウォーム歯車３
４と噛合するウォーム３６をドライバ等の工具で回動さ
せることによりウォーム歯車３４は回動され、ウォーム
歯車３４の雌ねじ部３５に雄ねじ部３３をもって螺合さ
れているねじ杆３１は、そのピボット部３２がピボット
受Ｌに回り止め片３７により軸回転しないように嵌着さ
れているので、回動せずに進退動することとなる。2. Description of the Related Art Conventionally, as a headlight optical axis adjusting device, an orthogonal type (adjusting by inserting a driver from above the vehicle body) which is known in FIGS. 5 and 6 is generally well known. 5, a headlight mounting frame supports a fulcrum P of the headlight H, and a pivot receiver L formed at an upper portion of one side of the headlight H is provided with a worm gear mechanism 30 mounted on the vehicle body side. The pivot portion 32 of the screw rod 31 that is moved forward and backward is fitted so that it can swing freely and does not rotate around the shaft. The screw rod 31 has a male screw part 33 screwed into a female screw part 35 formed in a shaft hole of the worm gear 34. When adjusting the optical axis of the headlight H, the worm gear 3
The worm gear 34 is rotated by rotating the worm 36 meshing with the worm gear 4 with a tool such as a driver, and the threaded rod 31 screwed with the female threaded part 35 of the worm gear 34 with the male threaded part 33 has its pivot part. 32 is fitted to the pivot receiver L by the rotation preventing piece 37 so as not to rotate around the shaft, so that it moves forward and backward without rotating.
【０００３】このようなねじ杆３１の進退動によりヘッ
ドライトＨは支点Ｐを中心に揺動されて光軸調整が行わ
れるものであるが、ウォーム歯車３４の雌ねじ部３５は
タップ立てやねじ抜き成形によって形成するため、雄ね
じ部３３と雌ねじ部３５には製造上の誤差が必ず生じ
る。このため雄ねじ部３３と雌ねじ部３５とを螺合させ
るにはねじ間にクリアランスが必ず必要となった。しか
しこのクリアランスによって雄ねじ部３３と雌ねじ部３
５の螺合にはガタが生じ、このガタにより光軸調整を精
度よく行うことが難しいうえに、ヘッドライトＨを保持
する光軸調整ねじは走行時にガタついてヘッドライトＨ
を微震動させることとなった。この震動によりフィラメ
ント断線の原因となったり、螺合が緩み光軸のずれを生
じさせる問題があった。またウォーム歯車３４の軸孔の
雌ねじ部３５は、タップ立てやねじ抜き成形により形成
するため、工数がかかりコストアップの原因となる問題
があった。しかもハウジング３８は車体フレームに複数
のビスにより取り付けるため、位置決めが厄介なうえ、
車体フレームに複数のタップ立て加工が必要になり、手
間と時間がかかるという問題があった。[0003] The headlight H is swung about the fulcrum P by the advancing and retreating of the screw rod 31 to adjust the optical axis. The female screw 35 of the worm gear 34 is tapped or unthreaded. Since the male screw part 33 and the female screw part 35 are formed by molding, a manufacturing error always occurs. Therefore, in order to screw the male screw portion 33 and the female screw portion 35, a clearance is necessarily required between the screws. However, due to this clearance, the male screw 33 and the female screw 3
5 causes rattling, which makes it difficult to adjust the optical axis with high accuracy. In addition, the optical axis adjusting screw for holding the headlight H has a backlash during running.
Was to be slightly shaken. This shaking causes problems such as breakage of the filament, loosening of the screw, and displacement of the optical axis. Further, since the female screw portion 35 of the shaft hole of the worm gear 34 is formed by tapping or screw forming, there is a problem that the number of steps is increased and the cost is increased. Moreover, since the housing 38 is attached to the body frame with a plurality of screws, positioning is troublesome, and
There is a problem that a plurality of tapping processes are required for the body frame, which takes time and effort.
【０００４】また図６に示されるものは、ヘッドライト
取付フレームにヘッドライトＨの支点Ｐを支持させると
ともに、ヘッドライトＨの一側上部に形成されるピボッ
ト受Ｌには、車体側に取り付けられる駆動機構４０によ
り進退動されるねじ杆４１のピボット部４２が揺動自
在、且つ軸回転しないように嵌着されている。またねじ
杆４１の雄ねじ部４３と螺合される雌ねじ部４５を形成
した駆動機構４０は、回り止め４５ａと該回り止め４５
ａに回り止めされる傘歯車４５ｂと固定のつめ車４５ｃ
と可動のつめ車４５ｄとよりなる。そしてヘッドライト
Ｈの光軸調整の際は、傘歯車４５ｂをドライバ等の工具
を係合させると固定のつめ車４５ｃから可動のつめ車４
５ｄはわずかに浮き、工具を回動させることにより傘歯
車４５ｂは回動し、固定のつめ車４５ｃの歯面を滑って
回動する可動のつめ車４５ｄを介して駆動機構４０の雌
ねじ部４３を回動させるので、雌ねじ部４５に雄ねじ部
４３をもって螺合されるねじ杆４１は、そのピボット部
４２がピボット受Ｌに軸回転しないように嵌着されてい
るので、回動せず進退動することとなる。FIG. 6 shows a headlight mounting frame that supports a fulcrum P of a headlight H, and a pivot receiver L formed at an upper portion of one side of the headlight H is attached to the vehicle body. The pivot portion 42 of the screw rod 41 which is moved forward and backward by the driving mechanism 40 is fitted so as to be swingable and not to rotate around the shaft. The drive mechanism 40 having the female screw portion 45 screwed with the male screw portion 43 of the screw rod 41 is provided with a detent 45a and a detent 45a.
bevel gear 45b and fixed ratchet wheel 45c
And a movable claw wheel 45d. When adjusting the optical axis of the headlight H, when the bevel gear 45b is engaged with a tool such as a driver, the movable ratchet wheel 4c is moved from the fixed ratchet wheel 45c.
5d is slightly lifted, and the bevel gear 45b is rotated by rotating the tool, and the female screw portion 43 of the drive mechanism 40 is rotated via the movable ratchet wheel 45d that slides on the tooth surface of the fixed ratchet wheel 45c. The screw rod 41 screwed into the female screw part 45 with the male screw part 43 is fitted so that the pivot part 42 does not rotate around the pivot receiver L, so that the screw rod 41 moves forward and backward without rotating. Will be done.
【０００５】このようなねじ杆４１の進退動によりヘッ
ドライトＨは支点Ｐを中心に揺動されて光軸調整が行わ
れるものであるが、可動のつめ車４５ｃは固定のつめ車
４５ｄの歯面を滑って回動されるため、つめ車４５ｃ、
４５ｄの歯は摩耗しやすくガタが発生しやすいうえに、
雌ねじ部４５と雄ねじ部４３との螺合に必要となるクリ
アランスから必ずガタが生じる。これらのガタにより光
軸調整精度が悪いうえに、ヘッドライトＨを保持する光
軸調整ねじは走行時にガタついてヘッドライトＨを震動
させ、フィラメントの断線原因となったり、螺合の緩み
による光軸のズレを生じさせるという問題があった。し
かもハウジング４６は車体フレームにビス止めするた
め、位置決めが厄介なうえ、車体フレームに複数のタッ
プ立て加工が必要となるという問題があった。The headlight H is swung about the fulcrum P to adjust the optical axis by the forward and backward movements of the screw rod 41. The movable ratchet wheel 45c is a tooth of a fixed ratchet wheel 45d. Because it is rotated by sliding on the surface, the ratchet wheel 45c,
45d teeth are easy to wear and rattle,
The clearance required for screwing the female screw part 45 and the male screw part 43 always causes play. The optical axis adjustment accuracy for holding the headlight H is poor due to the play, and the optical axis adjustment screw for holding the headlight H causes the headlight H to vibrate during running, causing the filament to break or the looseness of the screw. There is a problem of causing deviation. In addition, since the housing 46 is screwed to the body frame, there is a problem that positioning is troublesome and a plurality of tapping processes are required for the body frame.
【０００６】[0006]
【発明が解決しようとする課題】本発明は、前記のよう
な問題を解決し、組み立て工数を低減でき、取り付けが
容易なうえ、光軸を長期間安定させることができ、且つ
ヘッドライトの耐久性を向上させることができるヘッド
ライトの光軸調整装置を提供することにある。SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, reduces the number of assembling steps, facilitates installation, stabilizes the optical axis for a long period of time, and improves the durability of the headlight. It is an object of the present invention to provide a headlight optical axis adjusting device capable of improving performance.
【０００７】[0007]
【課題を解決するための手段】本発明は、ヘッドライト
の一側に揺動自在に嵌着されるピボット部を先端に形成
した光軸調整ねじと螺合される駆動用傘歯車をハウジン
グに回動自在に装着させるとともに、該ハウジングに駆
動用傘歯車を回動させる回動工具を差し込むガイド孔を
形成し、また該ハウジングの背面に車体フレームの取付
孔に嵌合される軸筒を張出させるとともに車体フレーム
の係止孔に嵌着される係止爪部を設け、前記軸筒に、駆
動用傘歯車の軸の外周に形成された環状凹溝と係止され
る係止突起を先端内面に設けた掛止片を設けたことを特
徴とする第１の発明と、ヘッドライトの一側に揺動自在
に嵌着されるピボット部を先端に形成した光軸調整ねじ
と螺合される駆動用傘歯車をハウジングに回動自在に装
着させるとともに、該ハウジングに駆動用傘歯車を回動
させる回動工具を差し込むガイド孔を形成し、また該ハ
ウジングの背面に車体フレームの取付孔に嵌合される軸
筒を張出させるとともに車体フレームの係止孔に嵌着さ
れる係止爪部を設け、さらにハウジングに前記駆動用傘
歯車の外周面に形成された係止歯により弾かれて１歯車
単位のクリック音を発生させる撓み打音板を設けたこと
を特徴とする第２の発明と、ヘッドライトの一側に揺動
自在に嵌着されるピボット部を先端に形成した光軸調整
ねじとインサート成形により螺合される駆動用傘歯車を
ハウジングに回動自在に装着させるとともに、該ハウジ
ングに駆動用傘歯車を回動させる回動工具を差し込むガ
イド孔を形成し、また該ハウジングの背面に車体フレー
ムの取付孔に嵌合される軸筒を張出させるとともに車体
フレームの係止孔に嵌着される係止爪部を設けたことを
特徴とする第３の発明とからなるものである。SUMMARY OF THE INVENTION According to the present invention, a drive bevel gear screwed to an optical axis adjusting screw having a pivot portion at the end thereof pivotally fitted to one side of a headlight is provided in a housing. Attach it rotatably and drive it to the housing.
A guide hole for inserting a rotating tool for rotating the bevel gear
A locking cylinder is formed on the rear surface of the housing, and a locking cylinder is fitted on the locking hole of the vehicle body frame.
The bevel gear is engaged with an annular groove formed on the outer circumference of the shaft of the bevel gear.
Invention in which a locking piece having a locking projection provided on the inner surface of the tip is provided, and is swingable to one side of the headlight.
Optical axis adjustment screw with a pivot at the end
A drive bevel gear screwed to the housing is rotatably mounted on the housing.
And the drive bevel gear is rotated on the housing.
Guide holes for inserting rotating tools to be
Shaft that fits into the mounting hole of the body frame on the back of the housing
Extend the cylinder and fit into the locking holes in the body frame
Locking claw portion to be provided, and the driving umbrella is further provided on the housing.
One gear is repelled by locking teeth formed on the outer peripheral surface of the gear
Providing a flexural sounding plate that generates a click sound in units
Swinging to one side of the headlights
Optical axis adjustment with a free-fitting pivot at the end
Drive bevel gear screwed with screws and insert molding
The housing is rotatably mounted and the housing
To insert a rotating tool to rotate the drive bevel gear
And a body frame on the back of the housing.
The shaft cylinder fitted into the mounting hole of the
That a locking claw that fits into the locking hole of the frame is provided.
The third aspect of the present invention is characterized by the following .
【０００８】[0008]
【作用】本発明のヘッドライトの光軸調整装置は、光軸
調整ねじのピボット部をヘッドライトに装着したうえ、
車体フレームにハウジングを軸筒と係止爪部をもって位
置決めして仮止めしたうえ固定し、ハウジングのガイド
孔より回動工具を差し込んで駆動用傘歯車を回動させれ
ば、ハウジングに回動自在に装着されている駆動用傘歯
車に螺合されている回り止めされた光軸調整ねじは出没
し、ヘッドライトに装着されたピボット部は前後動して
ヘッドライトを揺動させることにより光軸の調整が行わ
れる。また軸筒に掛止片を設けて駆動傘歯車の軸の環状
凹溝に弾性係止させるようにしたから、駆動傘歯車のハ
ウジングへの組付が極めて容易となる。また請求項２の
発明は、駆動傘歯車の外周面に形成した係止歯によりハ
ウジングから立設される撓み打音板が弾かれるようにし
て１歯車単位のクリック音を発生させるため、駆動傘歯
車の動きをクリック音で確認でき精度の高い光軸調整を
行うことができる。さらに請求項３の発明は、駆動傘歯
車は光軸調整ねじにインサート成形されるため、駆動傘
歯車の中心ねじ孔と光軸調整ねじは隙間のない締緊状態
となり精度の高い光軸調整を行うことができるうえに、
ヘッドライトをガタなく緊密に固定できるので光軸がズ
レたり、フィラメント断線を生じることを防止できる。 According to the headlight optical axis adjusting device of the present invention, the pivot part of the optical axis adjusting screw is mounted on the headlight.
Position the housing on the body frame with the shaft cylinder and the locking claw, temporarily fix it, and fix it. Insert the turning tool through the guide hole of the housing and turn the drive bevel gear to turn freely on the housing. The optical axis adjustment screw, which is screwed into the driving bevel gear mounted on the head, rotates and stops, and the pivot part mounted on the headlight moves back and forth to swing the headlight, Is adjusted. In addition, a hook piece is provided on the shaft cylinder to make the ring of the shaft of the drive bevel gear
The bevel gear is elastically locked in the groove, so the drive bevel gear c
It is extremely easy to assemble to the housing. Claim 2
According to the invention, the locking teeth formed on the outer peripheral surface of the driving bevel gear are used.
So that the flexural sounding plate standing from the
Drive bevel teeth to generate a click sound in gear units
High-precision optical axis adjustment that allows you to check the movement of the car with a click sound
It can be carried out. The invention according to claim 3 is a driving bevel tooth.
Since the car is insert molded to the optical axis adjustment screw, the drive umbrella
The center screw hole of the gear and the optical axis adjustment screw are tight with no gap
In addition to being able to perform highly accurate optical axis adjustment,
Since the headlights can be fixed tightly without backlash, the optical axis is shifted.
And the occurrence of filament breakage can be prevented.
【０００９】[0009]
【実施例】次に、本発明を図示の実施例に基づいて詳細
に説明する。図１において、１は車体フレーム２に取り
付けられるハウジングで、該ハウジング１の前面には合
成樹脂材の駆動傘歯車３を装着する合成樹脂材の短筒部
４が形成され、ハウジング１の背面には車体フレーム２
の取付孔２ａに嵌合される筒状の軸筒５が張出形成され
ている。該軸筒５にはスリット５ａにより先方部を遊動
自在とした掛止片５ｂが２個対向して設けられており、
該掛止片５ｂの先端内面に形成された掛止突起６は駆動
傘歯車３の軸３ａの外周に形成された環状凹溝３ｄと弾
性係合し、駆動傘歯車３を回動自在に保持するもので、
駆動傘歯車３の軸３ａを軸筒５内に嵌合させれば、駆動
傘歯車３の装着は完了する。また短筒部４に嵌合される
駆動傘歯車３の中心ねじ孔３ｂには光軸調整ねじ７が螺
合されている。図２は環状凹溝３ｄと係止突起６の係止
状態を示すのもである。なお、環状凹溝３ｄに係止され
る係止突起６により、光軸調整装置の軸方向に突発的に
荷重がかかることがあっても光軸はずれることはない。Next, the present invention will be described in detail with reference to the illustrated embodiment. In FIG. 1, reference numeral 1 denotes a housing attached to a vehicle body frame 2. On the front surface of the housing 1, a short tube portion 4 made of a synthetic resin material for mounting a drive bevel gear 3 made of a synthetic resin material is formed. Is the body frame 2
A cylindrical shaft tube 5 fitted into the mounting hole 2a is formed so as to protrude. The shaft cylinder 5 is provided with two engaging pieces 5b opposing each other by a slit 5a so that the tip part can freely move.
An engaging projection 6 formed on the inner surface of the tip of the engaging piece 5b elastically engages with an annular concave groove 3d formed on the outer periphery of the shaft 3a of the driving bevel gear 3, and holds the driving bevel gear 3 rotatably. To do
When the shaft 3a of the drive bevel gear 3 is fitted into the shaft cylinder 5, the mounting of the drive bevel gear 3 is completed. An optical axis adjusting screw 7 is screwed into the center screw hole 3b of the drive bevel gear 3 fitted to the short cylindrical portion 4. FIG. 2 shows the locked state of the annular concave groove 3d and the locking projection 6. The optical axis does not shift even when a load is suddenly applied in the axial direction of the optical axis adjusting device by the locking projection 6 which is locked to the annular groove 3d.
【００１０】光軸調整ねじ７の先端には、ヘッドライト
Ｈのピボット受Ｌ内に回動はできないが揺動は自在に嵌
着される合成樹脂材のピボット部７ａが形成されてお
り、該ピボット部７ａは光軸調整ねじ７の出没に応じて
支点Ｐを中心としてヘッドライトＨを揺動させて光軸調
整をおこなうものである。また駆動傘歯車３とピボット
部７ａは光軸調整ねじ７をインサート成形したもので、
駆動傘歯車３の中心ねじ孔３ｂは光軸調整ねじ７と隙間
なく密着螺合しているので両者は緊締状態となり、一旦
調整した光軸が不用意にズレることはない。７ｂは光軸
調整ねじ７の回り止めである。At the tip of the optical axis adjusting screw 7, a pivot portion 7a made of a synthetic resin material which is not rotatable in the pivot receiver L of the headlight H but is freely fitted to swing is formed. The pivot portion 7a adjusts the optical axis by swinging the headlight H about the fulcrum P in accordance with the emergence of the optical axis adjusting screw 7. The drive bevel gear 3 and the pivot portion 7a are formed by insert molding the optical axis adjusting screw 7.
Since the center screw hole 3b of the drive bevel gear 3 is tightly screwed with the optical axis adjusting screw 7 without any gap, both are tightened, so that the optical axis once adjusted does not inadvertently shift. Reference numeral 7b denotes a stopper for the optical axis adjusting screw 7.
【００１１】図３において、８はハウジング１のフラン
ジ部１ａの背面に形成されて車体フレーム２の係止孔２
ｂに嵌着される係止爪部で、該係止爪部８は先端に段部
８ａを形成した爪片８ｂを矢尻状に配設させたもので、
車体フレーム２をハウジング１に取り付ける際、係止爪
部８の段部８ａが係止孔２ｂの口縁に弾性係合すること
による抜け止めが行われる。そしてハウジング１は係止
爪部８及び軸筒５の取付孔２ａ及び係止孔２ｂとの嵌合
により車体フレーム２に位置決めと仮止めが行われる。
仮止めが行われた後、フランジ部１ｂに透設されるビス
孔１１を介して車体フレーム２に螺挿されるビスにより
係止爪部８よって仮止めされていたハウジング１は車体
フレーム２に固定されることとなる。In FIG. 3, reference numeral 8 denotes a locking hole 2 formed on the rear surface of the flange
b, the locking claw 8 is formed by disposing a claw piece 8b having a step 8a at its tip in an arrowhead shape.
When the vehicle body frame 2 is attached to the housing 1, the stopper 8 is prevented from slipping off by the stepped portion 8 a of the locking claw portion 8 elastically engaging with the edge of the locking hole 2 b. The housing 1 is positioned and temporarily fixed to the vehicle body frame 2 by fitting the locking claw portion 8 with the mounting hole 2a and the locking hole 2b of the shaft cylinder 5.
After the temporary fixing is performed, the housing 1 temporarily fixed by the locking claw portions 8 with screws screwed into the vehicle body frame 2 through the screw holes 11 provided through the flange portion 1b is fixed to the vehicle body frame 2. Will be done.
【００１２】図４において、短筒部４に装着された前記
駆動傘歯車３の外周面には係止歯３ｃが形成され、該係
止歯３ｃの歯内には短筒部４の凹み４ａから立設される
撓み打音板９が介入形成されており、駆動傘歯車３の回
動にともなって撓み打音板９は係止歯３ｃにより弾かれ
てクリック音を発生して駆動傘歯車３の回動を１歯単位
で確認することができる。In FIG. 4, a locking tooth 3c is formed on the outer peripheral surface of the drive bevel gear 3 mounted on the short cylinder portion 4, and a recess 4a of the short cylinder portion 4 is formed in the tooth of the locking tooth 3c. The bending beating sound plate 9 is formed by interposition, and the bending beating sound plate 9 is repelled by the locking teeth 3c to generate a clicking sound with the rotation of the driving bevel gear 3, thereby generating a clicking sound. The rotation of 3 can be confirmed for each tooth.
【００１３】図１において、ハウジング１の短筒部４の
上部に形成されるガイド孔１０は、短筒部４内に装着さ
れた駆動傘歯車３の傘歯３ｅに回動工具Ｔの十字状先端
が係合されるように挿入案内するもので、該ガイド孔１
０より回動工具Ｔを挿入して駆動傘歯車３の傘歯３ｅに
十字状先端を係合させたうえ、回転工具Ｔを正逆回動さ
せれば、駆動傘歯車３は正逆回動され、駆動傘歯車３の
中心ねじ孔３ｂに螺合される回り止めされた光軸調整ね
じ７は出没を行うこととなる。光軸調整ねじ７の出没に
よりヘッドライトＨはピボット受Ｌに嵌着されて前後動
するピボット部７ａによって支点Ｐを中心として揺動し
て光軸調整が行われるものである。In FIG. 1, a guide hole 10 formed in an upper portion of a short cylindrical portion 4 of a housing 1 has a bevel tooth 3e of a driving bevel gear 3 mounted in the short cylindrical portion 4 in a cross shape of a rotating tool T. The guide hole 1 guides the insertion so that the tip is engaged.
When the rotating tool T is inserted from 0 and the cross-shaped tip is engaged with the bevel teeth 3e of the driving bevel gear 3, and the rotating tool T is rotated forward and reverse, the driving bevel gear 3 rotates forward and reverse. Then, the optical axis adjusting screw 7, which is screwed into the center screw hole 3b of the drive bevel gear 3, stops and rotates. The headlight H is fitted to the pivot receiver L by the emergence of the optical axis adjusting screw 7 and swings around the fulcrum P by the pivoting portion 7a which moves back and forth to adjust the optical axis.
【００１４】[0014]
【発明の効果】本発明は前記説明によって明らかなよう
に、ハウジングに軸筒と係止爪部を設けて車体フレーム
の取付孔と係止孔に勘合して位置決めと仮止めを行うか
ら、取付作業が極めて簡単となるうえ、取付作業工程を
減らすことができ、短時間で簡単に取付作業を完了する
ことができる。また軸筒に掛止片を設けて駆動傘歯車軸
の環状凹溝に弾性係止させるようにしたから、駆動傘歯
車のハウジングへの組付が極めて容易となる。第２の発
明では駆動傘歯車の外周面に形成した係止歯によりハウ
ジングから立設される撓み打音板が弾かれるようにして
クリック音を発生させるため、係止歯の１歯分の移動を
クリック音で確認でき精度の高い光軸調整を容易に行う
ことができる。また第３の発明では、駆動傘歯車は光軸
調整ねじにインサート成形されるため、駆動傘歯車の中
心ねじ孔と光軸調整ねじは隙間のない締緊状態となり、
ヘッドライトをガタなく緊密に固定でき、走行時の震動
によって光軸調整ねじが緩んで光軸がズレたり、フィラ
メント断線を生じることを的確に防止できる。また駆動
傘歯車はインサート成形したから、駆動傘歯車の中心ね
じ孔をタップ立てやねじ抜き成形によって形成する必要
がなく、工数を大幅に省略することができるので、コス
トダウンを図ることができる等種々の利点を有するもの
である。従って、本発明は従来の問題点を解決したヘッ
ドライトの光軸調整装置として業界の発展に寄与すると
ころ極めて大なものである。According to the present invention, as is apparent from the above description, the housing is provided with the shaft cylinder and the locking claw, and the positioning and the temporary fixing are performed by fitting into the mounting hole and the locking hole of the body frame. The work becomes extremely simple, and the number of mounting work steps can be reduced, so that the mounting work can be completed easily in a short time. Further, since the latching piece is provided on the shaft cylinder and elastically locked in the annular concave groove of the drive bevel gear shaft, it is extremely easy to assemble the drive bevel gear to the housing. Second departure
In Ming, a click sound is generated by a bending sound plate that is erected from the housing by a locking tooth formed on the outer peripheral surface of the driving bevel gear to generate a click sound. The optical axis can be easily adjusted with high accuracy. In the third aspect, the drive bevel gear is insert-molded into the optical axis adjustment screw, so that the center screw hole of the drive bevel gear and the optical axis adjustment screw are in a tight state with no gap,
The headlights can be tightly fixed without looseness, and it is possible to accurately prevent the optical axis adjustment screw from being loosened due to the vibration during traveling and causing the optical axis to shift or the filament from breaking. In addition, since the drive bevel gear is insert-molded, it is not necessary to form the center screw hole of the drive bevel gear by tapping or screw forming, so that man-hours can be greatly reduced, thereby reducing costs. It has various advantages. Therefore, the present invention is extremely significant in that it contributes to the development of the industry as an optical axis adjusting device for a headlight that solves the conventional problems.
【図１】本発明の実施例を示す一部切欠側面図である。FIG. 1 is a partially cutaway side view showing an embodiment of the present invention.
【図２】本発明の実施例を示す一部切欠平面図である。FIG. 2 is a partially cutaway plan view showing an embodiment of the present invention.
【図３】本発明の実施例を示す一部切欠斜視図である。FIG. 3 is a partially cutaway perspective view showing an embodiment of the present invention.
【図４】本発明の実施例を示す背面図である。FIG. 4 is a rear view showing the embodiment of the present invention.
【図５】従来のヘッドライトの光軸調整装置を示す一部
切欠側面図である。FIG. 5 is a partially cutaway side view showing a conventional headlight optical axis adjusting device.
【図６】従来の他のヘッドライトの光軸調整装置を示す
一部切欠側面図である。FIG. 6 is a partially cutaway side view showing another conventional optical axis adjusting device for a headlight.
１ ハウジング ２ 車体フレーム ２ａ 取付孔 ２ｂ 係止孔 ３ 駆動傘歯車 ３ａ 軸 ３ｃ 係止歯 ３ｄ 環状凹溝 ５ 軸筒 ５ｂ 掛止片 ６ 係止突起 ７ 光軸調整ねじ ７ａ ピボット部 ８ 係止爪部 ９ 撓み打音板 １０ ガイド孔 Reference Signs List 1 housing 2 body frame 2a mounting hole 2b locking hole 3 drive bevel gear 3a shaft 3c locking tooth 3d annular concave groove 5 shaft cylinder 5b locking piece 6 locking protrusion 7 optical axis adjusting screw 7a pivot portion 8 locking claw portion 9 Flexural sounding plate 10 Guide hole
───────────────────────────────────────────────────── フロントページの続き (72)発明者 上西 弘志 愛知県豊田市トヨタ町１番地 トヨタ自 動車株式会社内 審査官 仁木 浩 (56)参考文献 特開 平５−8685（ＪＰ，Ａ) 実開 昭63−118102（ＪＰ，Ｕ) 実開 昭63−178004（ＪＰ，Ｕ) 実開 平６−17475（ＪＰ，Ｕ) 実公 昭61−42811（ＪＰ，Ｙ１) (58)調査した分野(Int.Cl.7，ＤＢ名) F21S 8/10 B60Q 1/06 F21V 14/04 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Hiroshi Uenishi 1st Toyota Town, Toyota City, Aichi Prefecture Examiner, Toyota Motor Co., Ltd. Hiroshi Niki (56) References JP-A-5-8865 (JP, A) 63-118102 (JP, U) Japanese Utility Model 63-178004 (JP, U) Japanese Utility Model Application Hei 6-17475 (JP, U) Japanese Utility Model Application 61-42811 (JP, Y1) (58) Int.Cl. 7 , DB name) F21S 8/10 B60Q 1/06 F21V 14/04
Claims (3)
れるピボット部(7a)を先端に形成した光軸調整ねじ(7)
と螺合される駆動用傘歯車(3)をハウジング(1)に回動自
在に装着させるとともに、該ハウジング(1)に駆動用傘
歯車(3)を回動させる回動工具を差し込むガイド孔(10)
を形成し、また該ハウジング(1)の背面に車体フレーム
(2)の取付孔(2a)に嵌合される軸筒(5)を張出させるとと
もに車体フレーム(2)の係止孔(2b)に嵌着される係止爪
部(8)を設け、前記軸筒(5)に、駆動用傘歯車(3)の軸(3
a)の外周に形成された環状凹溝(3d)と係止される係止突
起(6)を先端内面に設けた掛止片(5b)を設けたことを特
徴とするヘッドライトの光軸調整装置。An optical axis adjusting screw (7) having a pivot portion (7a) formed at the tip thereof so as to be swingably fitted to one side of a headlight.
A drive bevel gear (3) screwed into the housing (1) is rotatably mounted on the housing (1), and the drive bevel gear is mounted on the housing (1).
Guide hole (10) for inserting a rotating tool for rotating the gear (3)
And a body frame on the back of the housing (1).
A shaft cylinder (5) fitted into the mounting hole (2a) of (2) is extended and a locking claw (8) fitted into the locking hole (2b) of the body frame (2) is provided. The shaft (5) is provided with a shaft (3) of a driving bevel gear (3).
A locking projection that is locked with the annular groove (3d) formed on the outer circumference of a)
An optical axis adjusting device for a headlight, comprising a hooking piece (5b) provided with an opening (6) on the inner surface of the tip .
れるピボット部(7a)を先端に形成した光軸調整ねじ(7)
と螺合される駆動用傘歯車(3)をハウジング(1)に回動自
在に装着させるとともに、該ハウジング(1)に駆動用傘
歯車(3)を回動させる回動工具を差し込むガイド孔(10)
を形成し、また該ハウジング(1)の背面に車体フレーム
(2)の取付孔(2a)に嵌合される軸筒(5)を張出させるとと
もに車体フレーム(2)の係止孔(2b)に嵌着される係止爪
部(8)を設け、さらにハウジング(1)に前記駆動用傘歯車
(3)の外周面に形成された係止歯(3c)により弾かれて１
歯車単位のクリック音を発生させる撓み打音板(9)を設
けたことを特徴とするヘッドライトの光軸調整装置。2. A headlight is swingably fitted to one side of the headlight.
Optical axis adjustment screw (7) with a pivot (7a) formed at the tip
The drive bevel gear (3) screwed into the housing (1)
And a drive umbrella on the housing (1).
Guide hole (10) for inserting a rotating tool for rotating the gear (3)
And a body frame on the back of the housing (1).
When the shaft cylinder (5) fitted to the mounting hole (2a) of (2) is extended,
Locking claw that is fitted into the locking hole (2b) of the body frame (2)
Section (8), and further, the drive bevel gear is provided in the housing (1).
It is repelled by the locking teeth (3c) formed on the outer peripheral surface of (3), and 1
A flexural sounding plate (9) that generates a click sound for each gear is installed.
Optical axis adjusting device of the headlight, characterized in that digit.
れるピボット部(7a)を先端に形成した光軸調整ねじ(7)
とインサート成形により螺合される駆動用傘歯車(3)を
ハウジング(1)に回動自在に装着させるとともに、該ハ
ウジング(1)に駆動用傘歯車(3)を回動させる回動工具を
差し込むガイド孔(10)を形成し、また該ハウジング(1)
の背面に車体フレーム(2)の取付孔(2a)に嵌合される軸
筒(5)を張出させるとともに車体フレーム(2)の係止孔(2
b)に嵌着される係止爪部(8)を設けたことを特徴とする
ヘッドライトの光軸調整装置。3. A headlight is swingably fitted to one side of the headlight.
Optical axis adjustment screw (7) with a pivot (7a) formed at the tip
Drive bevel gear (3) screwed with insert molding
The housing (1) is rotatably mounted on the housing (1).
A rotating tool for rotating the drive bevel gear (3) is mounted on the housing (1).
A guide hole (10) for insertion is formed, and the housing (1)
A shaft fitted to the mounting hole (2a) of the body frame (2) on the back of
Extend the cylinder (5) and lock the holes (2
An optical axis adjusting device for a headlight, wherein a locking claw portion (8) fitted to b) is provided .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29963494A JP3331074B2 (en) | 1994-12-02 | 1994-12-02 | Headlight optical axis adjustment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29963494A JP3331074B2 (en) | 1994-12-02 | 1994-12-02 | Headlight optical axis adjustment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08161906A JPH08161906A (en) | 1996-06-21 |
| JP3331074B2 true JP3331074B2 (en) | 2002-10-07 |
Family
ID=17875137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29963494A Expired - Fee Related JP3331074B2 (en) | 1994-12-02 | 1994-12-02 | Headlight optical axis adjustment device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3331074B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4609950B2 (en) | 2007-06-19 | 2011-01-12 | 本田技研工業株式会社 | Headlight device |
-
1994
- 1994-12-02 JP JP29963494A patent/JP3331074B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08161906A (en) | 1996-06-21 |
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