JP3112812B2 - Ball bearing structure for vehicle lighting - Google Patents
Ball bearing structure for vehicle lightingInfo
- Publication number
- JP3112812B2 JP3112812B2 JP07178259A JP17825995A JP3112812B2 JP 3112812 B2 JP3112812 B2 JP 3112812B2 JP 07178259 A JP07178259 A JP 07178259A JP 17825995 A JP17825995 A JP 17825995A JP 3112812 B2 JP3112812 B2 JP 3112812B2
- Authority
- JP
- Japan
- Prior art keywords
- ball
- reflector
- pivot
- cylindrical portion
- receiving
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2200/00—Special features or arrangements of vehicle headlamps
- B60Q2200/30—Special arrangements for adjusting headlamps, e.g. means for transmitting the movements for adjusting the lamps
- B60Q2200/32—Ball-joints
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
- F16C11/0623—Construction or details of the socket member
- F16C11/0657—Construction or details of the socket member the socket member being mainly made of plastics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
- F16C2326/01—Parts of vehicles in general
Landscapes
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は灯具ボディ内に光源及び
リフレクタを光軸調整可能に設けた灯具に関し、特に光
軸調整に際して傾動されるリフレクタの支点となる球受
部の構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lamp in which a light source and a reflector are provided in a lamp body so that an optical axis can be adjusted, and more particularly to a structure of a ball receiving portion serving as a fulcrum of a reflector which is tilted when adjusting the optical axis.
【０００２】[0002]
【従来の技術】自動車用前照灯では、車体に固定される
灯具ボディに対して光源用の電球やリフレクタの光軸を
調整するための構造が設けられる。一般的には、リフレ
クタの一部を灯具ボディに対して球受支持し、この支持
部に対して上下方向及び水平方向に対向する位置にそれ
ぞれ灯具ボディに軸支されたスクリュを設けてこれをリ
フレクタに螺合させている。このため、このスクリュを
軸転操作して灯具ボディに対してリフレクタを前後方向
に移動させてリフレクタを上下方向及び水平方向に傾動
させ、光軸調整を行なうことができる。2. Description of the Related Art A headlight for an automobile is provided with a structure for adjusting the optical axis of a light source bulb or a reflector with respect to a lamp body fixed to a vehicle body. In general, a part of the reflector is supported by a ball with respect to the lamp body, and screws which are respectively supported by the lamp body are provided at positions opposed to the supporting portion in the vertical and horizontal directions. Screwed to the reflector. Therefore, the screw can be pivoted to move the reflector in the front-rear direction with respect to the lamp body to tilt the reflector in the vertical and horizontal directions, so that the optical axis can be adjusted.
【０００３】ところで、このような光軸調整構造の球受
部では、リフレクタと灯具ボディの一方に先端が球状を
したロッドからなる球ピボットが設けられ、他方にはこ
の球ピボットを受け入れる球受座が設けられる。そし
て、近年における部品数の削減により、これらの球ピボ
ットや球受座を樹脂成形される灯具ボディやリフレクタ
と一体成形により形成することが行われている。In the ball receiving portion having such an optical axis adjusting structure, a ball pivot having a spherical tip is provided on one of the reflector and the lamp body, and a ball receiving portion for receiving the ball pivot is provided on the other. Is provided. In recent years, with the reduction in the number of components, these ball pivots and ball seats have been formed integrally with a lamp body or reflector formed of resin.
【０００４】例えば、実開平５−５８５０４号公報に
は、リフレクタに球ピボットを設け、灯具ボディに球受
座を一体に形成したものが提案されている。ここでは、
球ピボットについては別部材として形成したものをリフ
レクタに設けたブラケットの穴内に嵌入した構成がとら
れている。図５（ａ）はその球受部における球受座の斜
視図である。この球受座１０１は外形が円柱状に形成さ
れ、その端面から軸方向内部に向けて球形の空間１０２
が設けられ、さらに開口縁部１０３は円錐面状に形成さ
れ、かつこの開口縁部１０３は前記内部空間１０２より
も内径方向に突出されて球ピボットの抜け止め部として
構成されている。また、開口縁部１０３に径方向の弾性
力を付与するために、円周方向の複数箇所に径方向のス
リット１０４が形成されている。For example, Japanese Utility Model Laid-Open Publication No. 5-58504 proposes an apparatus in which a ball pivot is provided on a reflector and a ball seat is integrally formed on a lamp body. here,
The ball pivot is formed as a separate member and fitted into a hole of a bracket provided on the reflector. FIG. 5A is a perspective view of a ball seat in the ball receiver. The ball seat 101 has a cylindrical outer shape and a spherical space 102 extending inward in the axial direction from its end face.
The opening edge 103 is formed in the shape of a conical surface, and the opening edge 103 protrudes in the inner diameter direction from the internal space 102 and is configured as a retaining portion for the ball pivot. In order to apply a radial elastic force to the opening edge 103, radial slits 104 are formed at a plurality of positions in the circumferential direction.
【０００５】この構成の球受座１０１は、リフレクタに
取着した図外の球ピボットを開口縁部１０３から押し込
むことにより、球部を内部空間１０２内に嵌入でき、両
者を球継手として構成でき、この部分を支点としてリフ
レクタを灯具ボディに対して傾動させることが可能とな
る。In the ball seat 101 of this configuration, the ball can be fitted into the internal space 102 by pushing a ball pivot (not shown) attached to the reflector from the opening edge 103, and both can be formed as ball joints. With this portion as a fulcrum, the reflector can be tilted with respect to the lamp body.
【０００６】また、この球受座は、灯具ボディと一体に
樹脂成形するが、その成形方法として、前記した公報で
は図５（ｂ）に示すように、球状の抜き型２０１を有す
る上金型２０２と、下金型２０３を用いて成形し、成形
後にこの抜き型２０１を引き抜くことで、成形される球
受座１０１の開口縁部１０２の弾力性を利用してその引
き抜きを可能としている。The ball seat is formed integrally with the lamp body by resin molding. As a molding method, as shown in FIG. 5B, an upper die having a spherical punching die 201 is disclosed in the above-mentioned publication. By molding using the lower mold 202 and the lower mold 203, and pulling out the mold 201 after the molding, the elasticity of the opening edge 102 of the ball seat 101 to be molded can be pulled out.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、従来の
球受座１０１の構造では、内部空間１０２を除く部分が
全て中実構造とされているため、特に灯具ボディにつな
がる下部の領域の肉厚が大きくなり易い。このため、樹
脂成形用の金型２０１〜２０３もこの部分でのキャビテ
ィ容積が大きくなるため、この部分で樹脂の流れが乱
れ、成形された球受座１０１内に空気溜まりが生じて機
械的な強度の低下を招くことがある。或いは、成形され
た球受座１０１の肉厚が大きいことによって樹脂のひけ
が生じ、内部空間１０２の球面形状に歪みが生じて形状
の精度が低下され、球ピボットとの接触性が劣化されて
球受部としての機能が劣化されるおそれがある。However, in the structure of the conventional ball seat 101, since all parts except the internal space 102 are of a solid structure, the thickness of the lower region connected to the lamp body is particularly small. Easy to grow. For this reason, also in the molds 201 to 203 for resin molding, since the cavity volume in this portion is large, the flow of the resin is disturbed in this portion, and air is generated in the molded ball seat 101, and mechanical The strength may be reduced. Alternatively, the thickness of the molded ball seat 101 is large, so that the resin sinks, the spherical shape of the internal space 102 is distorted, the accuracy of the shape is reduced, and the contact with the ball pivot is deteriorated. There is a possibility that the function as the ball receiving portion is deteriorated.
【０００８】さらに、金型の抜き型２０１を無理抜きす
るときには、スリット１０４により開口縁部１０３が外
径方向に弾性変形されて金型の抜きを可能としている
が、その際に球受座１０１の肉厚が大きいために弾性変
形の許容範囲が小さく、開口縁部１０３が塑性変形され
て拡径状態とされ、その後の使用時において球ピボット
が抜けて脱落し易くなるという問題も生じるおそれがあ
る。Further, when the die 201 of the mold is forcibly extracted, the opening edge 103 is elastically deformed in the outer diameter direction by the slit 104 so that the die can be extracted. Due to the large wall thickness, the allowable range of elastic deformation is small, and the opening edge 103 is plastically deformed to be in an expanded state, which may cause a problem that the ball pivot falls out and becomes easily dropped during subsequent use. is there.
【０００９】[0009]
【発明の目的】本発明の目的は、このような樹脂成形時
における空気溜まりやひけの発生を防止し、かつ球受部
としての信頼性を高めた球受座を備える車両用灯具の球
受構造を提供することにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a ball receiving device for a vehicle lamp equipped with a ball receiving seat which prevents the occurrence of air pockets and sink marks during resin molding and has an improved reliability as a ball receiving portion. It is to provide a structure.
【００１０】[0010]
【課題を解決するための手段】本発明は、球受構造を構
成する球ピボットと球受座のうち、球受座は薄肉に形成
された円筒部と、この円筒部の開口縁部において内径方
向に突出形成されて球ピボットの球部の脱落を防止する
ための係止部と、開口縁部の円周方向複数箇所に設けら
れたスリットと、円筒部の底面の円周方向複数箇所に立
設されその一辺部で球ピボットの球部を支承する受けリ
ブとを備える構成とする。SUMMARY OF THE INVENTION According to the present invention, among the ball pivot and the ball seat constituting the ball receiving structure, the ball seat has a thin cylindrical portion and an inner diameter at an opening edge of the cylindrical portion. A locking portion is formed to protrude in the direction to prevent the ball portion of the ball pivot from falling off, a slit provided at a plurality of circumferential positions on the opening edge, and a plurality of circumferential positions on the bottom surface of the cylindrical portion. And a receiving rib that stands upright and supports the ball portion of the ball pivot at one side thereof.
【００１１】[0011]
【作用】球ピボットを支承するために複数の受けリブを
設けることで、球受座の円筒部の肉厚を低減でき、樹脂
成形時での空気溜まりやひけの発生を防止し、かつ一方
では球ピボットを支承する際の信頼性を改善する。[Function] By providing a plurality of receiving ribs for supporting the ball pivot, the thickness of the cylindrical portion of the ball seat can be reduced, and air pockets and sink marks during resin molding can be prevented. Improves reliability when supporting ball pivots.
【００１２】[0012]
【実施例】次に、本発明について図面を参照して説明す
る。図１は本発明を自動車の前照灯に適用した実施例の
断面図である。灯具ボディ１は樹脂成形によって形成さ
れており、全体を容器状に形成され、前面開口にはレン
ズ２が取着されて灯室が画成される。この灯室内にはリ
フレクタ３が内装されており、このリフレクタ３には光
源としての電球（バルブ）４が支持される。また、この
リフレクタ３は背面の一部構において、詳細を後述する
球受部５において上下、左右に傾動可能に構成される。
そして、この球受部５を支点として上下エイミング調整
部と左右エイミング調整部が設けられる。同図には上下
エイミング調整部６が図示されており、前記球受部５の
上側位置においてリフレクタ３の背面に突出形成された
ブラケット３１にナット６１が固定支持され、かつこの
ナット６１に螺合されるエイミング調整ネジ６２が灯具
ボディ１を貫通して軸転可能に軸支持されている。な
お、図示されない左右エイミング調整部も前記球受部５
の左または右に対向位置されている他は、この上下エイ
ミング調整部６と略同様な構成とされている。Next, the present invention will be described with reference to the drawings. FIG. 1 is a sectional view of an embodiment in which the present invention is applied to a headlight of an automobile. The lamp body 1 is formed by resin molding, the whole is formed in a container shape, and a lens 2 is attached to a front opening to define a lamp chamber. A reflector 3 is provided in the lamp room, and a light bulb (bulb) 4 as a light source is supported on the reflector 3. The reflector 3 is configured to be tiltable up and down, left and right in a ball receiving portion 5 described in detail later in a partial structure of the rear surface.
A vertical aiming adjustment unit and a left and right aiming adjustment unit are provided with the ball receiving unit 5 as a fulcrum. FIG. 3 shows an upper / lower aiming adjustment unit 6. A nut 61 is fixedly supported by a bracket 31 formed on the back surface of the reflector 3 at a position above the ball receiving unit 5, and is screwed to the nut 61. The aiming adjustment screw 62 is penetrated through the lamp body 1 and is axially supported so as to be pivotable. The left and right aiming adjustment units (not shown) are also provided with the ball receiving unit 5.
The configuration is substantially the same as that of the upper / lower aiming adjustment unit 6 except that the upper and lower aiming adjustment unit 6 is opposed to the left or right.
【００１３】前記球受部５は、図２に拡大図を、図３に
一部を破断した斜視図をそれぞれ示すように、リフレク
タ３の背面に突出されたブラケット３２に取着された球
ピボット５１と、灯具ボディ１の内面に一体成形された
球受座５２とで構成される。球ピボット５１は、リフレ
クタ３とは別部品として形成されており、その先端部に
球部５１１が設けられ、基端部にくさび型の嵌入部５１
２が設けられる。そして、この嵌入部５１２が前記ブラ
ケット３２に設けられた穴３３に嵌入されることで、ブ
ラケット３２に対して一体的に取着される。As shown in an enlarged view of FIG. 2 and a partially cutaway perspective view of FIG. 3, the ball receiving portion 5 is a ball pivot attached to a bracket 32 projecting from the back of the reflector 3. 51 and a ball seat 52 integrally formed on the inner surface of the lamp body 1. The ball pivot 51 is formed as a separate component from the reflector 3, is provided with a ball portion 511 at its distal end, and has a wedge-shaped fitting portion 51 at its proximal end.
2 are provided. The fitting portion 512 is fitted into the hole 33 provided in the bracket 32 to be integrally attached to the bracket 32.
【００１４】一方、球受座５２は、図４（ａ），（ｂ）
に平面図とそのＡＡ線断面を示すように、灯具ボディ１
の内面から突出された比較的に薄肉の円筒状をした円筒
部５２１を主体に形成されており、この円筒部５２１の
開口縁部は内径方向に向けて幾分突出されて係止部５２
２として構成されている。この係止部５２２の上側の面
５２３は逆円錐面として形成されて前記球ピボットを嵌
入する際の案内面として構成され、下側の面５２４は略
円錐面に近い形状とされて前記球ピボット５１の球部５
１１を嵌入したときの上側当接面として構成される。ま
た、前記円筒部５２１の開口縁部には円周方向の複数箇
所、この実施例では中間角度位置が９０度の箇所に筒軸
の略半分程度の長さまで延長される４つのスリット５２
５が形成され、前記開口縁部を径方向に弾性変形し易く
している。On the other hand, the ball seat 52 is shown in FIGS.
As shown in the plan view and the cross section taken along the line AA in FIG.
Is formed mainly of a relatively thin cylindrical portion 521 protruding from the inner surface of the cylindrical portion 521, and the opening edge of the cylindrical portion 521 is slightly protruded toward the inner diameter direction to form the locking portion 52.
2. The upper surface 523 of the locking portion 522 is formed as an inverted conical surface and serves as a guide surface when the spherical pivot is fitted, and the lower surface 524 is shaped substantially like a conical surface to form the spherical pivot. 51 spheres 5
11 is configured as an upper contact surface when fitted. In addition, four slits 52 extending to approximately half the length of the cylinder axis at a plurality of positions in the circumferential direction at the opening edge of the cylindrical portion 521, and at a position where the intermediate angular position is 90 degrees in this embodiment.
5 are formed to facilitate the elastic deformation of the opening edge in the radial direction.
【００１５】また、前記円筒部５２１の内部の底面に
は、４枚の受けリブ５２６が立設される。この受けリブ
５２６は上端辺が前記円筒部内に球面を画成すべく円弧
状をした翼状に形成されており、前記スリット５２５の
円周方向の中間位置にそれぞれ設けられる。したがっ
て、各受けリブ５２６は円筒部５２１に対して９０度の
中心角度位置にそれぞれ形成されることになる。そし
て、これら４枚の受けリブ５２６の各上端部の円弧辺に
より前記球ピボット５１の球部５１１を嵌入したときの
下側当接部が構成される。なお、この受けリブ５２６は
前記円筒部５２１、ならびに灯具ボディ１と一体に樹脂
成形により形成される。On the bottom surface inside the cylindrical portion 521, four receiving ribs 526 are provided upright. The receiving rib 526 is formed in an arcuate wing shape to define a spherical surface in the cylindrical portion, and is provided at an intermediate position of the slit 525 in the circumferential direction. Therefore, each receiving rib 526 is formed at a central angle position of 90 degrees with respect to the cylindrical portion 521. The arcuate sides at the upper ends of the four receiving ribs 526 form a lower contact portion when the spherical portion 511 of the spherical pivot 51 is fitted. The receiving rib 526 is formed integrally with the cylindrical portion 521 and the lamp body 1 by resin molding.
【００１６】このように構成された球受座５２には、図
１に示したリフレクタ３を灯具ボディ１内に内装する際
に、リフレクタ３の背面のブラケット３２に取着された
球ピボット５１の球部５１１が、円筒部５２１の開口部
から内部に嵌入される。このとき、円筒部の係止部５２
２は、上側の逆円錐面５２３により球部５１１を円筒部
内に案内し、かつスリット５２５により外径方向に弾性
変形されながら球部５１１を挿通させ、その後に弾性復
帰されることで球部５１１を円筒部５２１内に収容す
る。この収容状態では、球部５１１の一側領域は係止部
５２２の下側の面５２４に当接される。また、同時に、
球部５１１の他側領域は受けリブ５２６の各円弧辺にお
いて支持される。これにより、球部５１１は球受座５２
内において球面支持され、球ピボット５１と球受座５２
とによる球受部５が構成される。When the reflector 3 shown in FIG. 1 is installed in the lamp body 1, the ball pivot 52 attached to the bracket 32 on the back of the reflector 3 is provided on the ball seat 52 configured as described above. The spherical portion 511 is fitted into the cylindrical portion 521 from the opening. At this time, the locking portion 52 of the cylindrical portion
2, the spherical portion 511 is guided into the cylindrical portion by the inverted conical surface 523 on the upper side, and the spherical portion 511 is inserted while being elastically deformed in the outer diameter direction by the slit 525, and thereafter is elastically returned. Is accommodated in the cylindrical portion 521. In this stored state, one side area of the ball portion 511 is in contact with the lower surface 524 of the locking portion 522. At the same time,
The other side area of the spherical portion 511 is supported on each arc side of the receiving rib 526. As a result, the ball portion 511 is moved to the ball seat 52
The ball pivot 51 and the ball seat 52
Thus, the ball receiving section 5 is configured.
【００１７】したがって、この球受座では、４枚の受け
リブ５２６によって球ピボット５１を支持するため、円
筒部５２１の下部の領域はその肉厚を増大させる必要が
ない。このため、樹脂成形用の金型もこの部分でのキャ
ビティ容積を大きくする必要がなく、この部分で樹脂の
流れが乱れ、成形された球受座５２内に空気溜まりが生
じて機械的な強度の低下を招くことや、成形された球受
座に樹脂のひけが生じ、内部空間の球面形状に歪みが生
じて、球ピボットとの接触性が劣化され、球受部として
の機能が劣化されるおそれはない。Therefore, in this ball seat, since the ball pivot 51 is supported by the four receiving ribs 526, it is not necessary to increase the thickness of the region below the cylindrical portion 521. For this reason, the mold for resin molding does not need to increase the cavity volume in this portion, and the flow of the resin is disturbed in this portion, and air is generated in the molded ball seat 52, and the mechanical strength is reduced. Or the resin sinks into the molded ball seat, causing distortion in the spherical shape of the internal space, deteriorating the contact with the ball pivot, and deteriorating the function as the ball receiver. There is no danger.
【００１８】さらに、図５（ｂ）に示したような金型に
より前記球受座５２の樹脂成形を行った際に、抜き型２
０１を無理抜きしたときには、スリット５２５により係
止部５２２が外径方向に弾性変形されて金型の抜きを可
能としているが、その際にも円筒部５２１の肉厚が小さ
いために弾性変形の許容範囲を大きくとれ、係止部５２
２が弾性復帰して本来の径寸法に復帰されるため、その
後の使用時においても球ピボット５１の球部５１１が脱
落されるという問題が生じることもない。Further, when resin molding of the ball seat 52 is performed by using a mold as shown in FIG.
01 is forcibly removed, the engaging portion 522 is elastically deformed in the outer radial direction by the slit 525 to enable the die to be removed. However, at this time, since the thickness of the cylindrical portion 521 is small, the elastically deformed portion is not formed. The tolerance range can be widened and the locking portion 52
Since the elastic member 2 is elastically restored to its original diameter, there is no problem that the ball portion 511 of the ball pivot 51 is dropped even during subsequent use.
【００１９】なお、前記実施例は本発明の一例を示した
ものであり、円筒部に設けたスリットや受けリブの数や
位置は必要に応じて増減することが可能である。ただ
し、開口縁部の弾性変形を確保する一方で受けリブによ
る球部の支承を確かなものとする上では、スリットと受
けリブとは円周方向の異なる位置に形成することが好ま
しい。The above embodiment is an example of the present invention, and the number and positions of the slits and receiving ribs provided in the cylindrical portion can be increased or decreased as necessary. However, in order to ensure the elastic deformation of the opening edge and to ensure the support of the spherical portion by the receiving rib, it is preferable that the slit and the receiving rib are formed at different positions in the circumferential direction.
【００２０】[0020]
【発明の効果】以上説明したように本発明は、球ピボッ
トを球受けする球受座は薄肉に形成された円筒部と、こ
の円筒部の開口縁部において内径方向に突出形成されて
球ピボットの球部の脱落を防止するための係止部と、開
口縁部の円周方向複数箇所に設けられたスリットと、円
筒部の底面の円周方向複数箇所に立設されその一辺部で
球ピボットの球部を支承する受けリブとを備えているの
で、特に球ピボットを支承する底面部での球受座の円筒
部の肉厚を低減でき、樹脂成形時での空気溜まりやひけ
の発生を防止して成形精度を高めることができ、かつ一
方では弾性変形された際の円筒部の塑性変形が防止され
て形状の保持性を高め、球ピボットを支承する際の信頼
性を改善することができる効果がある。As described above, according to the present invention, the ball seat for receiving the ball pivot has a thin cylindrical portion, and the ball pivot is formed by projecting in the inner diameter direction at the opening edge of the cylindrical portion. Locking portions for preventing the spherical portion from falling off, slits provided at a plurality of circumferential positions on the opening edge, and spheres standing at a plurality of circumferential positions on the bottom surface of the cylindrical portion at one side thereof. Since it has a receiving rib that supports the ball part of the pivot, the thickness of the cylindrical part of the ball seat at the bottom part that supports the ball pivot can be reduced, and air pockets and sink marks occur during resin molding. To improve molding accuracy, and on the other hand, prevent plastic deformation of the cylindrical part when elastically deformed, improve shape retention, and improve reliability when supporting the ball pivot. There is an effect that can be.
【図１】本発明が適用される車両用灯具の断面図であ
る。FIG. 1 is a sectional view of a vehicular lamp to which the present invention is applied.
【図２】本発明にかかる球受部の拡大断面図である。FIG. 2 is an enlarged sectional view of a ball receiving section according to the present invention.
【図３】球受部の一部を破断した斜視図である。FIG. 3 is a perspective view in which a part of a ball receiving portion is cut away.
【図４】球受座の正面図とＡＡ線断面図である。FIG. 4 is a front view of the ball seat and a cross-sectional view taken along line AA.
【図５】従来の球受座の一例を示す斜視図と樹脂成形す
る状態を示す断面図である。FIG. 5 is a perspective view showing an example of a conventional ball seat and a cross-sectional view showing a state of resin molding.
１ 灯具ボディ ２ レンズ ３ リフレクタ ５ 球受部 ６ 上下エイミング調整部 ３２ ブラケット ５１ 球ピボット ５２ 球受座 ５２１ 円筒部 ５２２ 係止部 ５２５ スリット ５２６ 受けリブ DESCRIPTION OF SYMBOLS 1 Lamp body 2 Lens 3 Reflector 5 Ball receiving part 6 Vertical aiming adjustment part 32 Bracket 51 Ball pivot 52 Ball receiving seat 521 Cylindrical part 522 Locking part 525 Slit 526 Receiving rib
Claims (1)
能に支持するための球受構造であって、前記灯具ボディ
とリフレクタの一方に設けられた球ピボットと、他方に
一体成形された球受座とで構成され、前記球受座は薄肉
に形成された円筒部と、この円筒部の開口縁部において
内径方向に突出形成されて前記球ピボットの球部の脱落
を防止するための係止部と、前記開口縁部の円周方向複
数箇所に設けられたスリットと、前記円筒部の底面の円
周方向複数箇所に立設されその一辺部で前記球ピボット
の球部を支承する受けリブとを備えることを特徴とする
車両用灯具の球受構造。A ball receiving structure for tiltably supporting a reflector with respect to a lamp body, a ball pivot provided on one of the lamp body and the reflector, and a ball seat integrally formed on the other. The ball seat is formed of a thin cylindrical portion, and an engaging portion formed at an opening edge of the cylindrical portion so as to protrude in the inner diameter direction to prevent the ball portion of the ball pivot from falling off. And a slit provided at a plurality of circumferential positions of the opening edge, and a receiving rib that stands upright at a plurality of circumferential positions on the bottom surface of the cylindrical portion and supports the spherical portion of the spherical pivot at one side thereof. A ball receiving structure for a vehicular lamp, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07178259A JP3112812B2 (en) | 1995-06-21 | 1995-06-21 | Ball bearing structure for vehicle lighting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07178259A JP3112812B2 (en) | 1995-06-21 | 1995-06-21 | Ball bearing structure for vehicle lighting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH097405A JPH097405A (en) | 1997-01-10 |
| JP3112812B2 true JP3112812B2 (en) | 2000-11-27 |
Family
ID=16045372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07178259A Expired - Fee Related JP3112812B2 (en) | 1995-06-21 | 1995-06-21 | Ball bearing structure for vehicle lighting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3112812B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003175763A (en) * | 2001-12-13 | 2003-06-24 | Koito Mfg Co Ltd | Vehicle light |
| JP6054782B2 (en) | 2013-03-19 | 2016-12-27 | スタンレー電気株式会社 | Pivot holder structure for vehicle lamp |
-
1995
- 1995-06-21 JP JP07178259A patent/JP3112812B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH097405A (en) | 1997-01-10 |
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