JP3077530B2 - Vibration welding structure of lamp lens - Google Patents
Vibration welding structure of lamp lensInfo
- Publication number
- JP3077530B2 JP3077530B2 JP06250840A JP25084094A JP3077530B2 JP 3077530 B2 JP3077530 B2 JP 3077530B2 JP 06250840 A JP06250840 A JP 06250840A JP 25084094 A JP25084094 A JP 25084094A JP 3077530 B2 JP3077530 B2 JP 3077530B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- lamp
- legs
- leg
- slope
- 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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/747—Lightning equipment
Landscapes
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、熱可塑性樹脂製のラン
プハウジングに対して熱可塑性樹脂製レンズの脚を振動
溶接によって固着するための構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for fixing the legs of a thermoplastic resin lens to a thermoplastic resin lamp housing by vibration welding.
【０００２】[0002]
【従来の技術】図４は熱可塑性樹脂製ランプハウジング
の前面開口部に、熱可塑性樹脂製レンズの脚を固着した
構造の車両用灯具の従来例を示す断面図であつて、図の
上方が灯具前方に相当している。ランプハウジング１の
前面開口部の周囲に、灯具前方に向かって凹なる周囲溝
１ａ，１ｂが形成されている。一方、レンズ２の背面か
ら灯具後方に向けてレンズ脚２ａ，２ｂが突出してお
り、上記のレンズ脚２ａ，２ｂはそれぞれ周囲溝１ａ，
１ｂ内に差し込まれている。以上のような構成におい
て、ランプハウジング１に対してレンズ２を固着する手
段として、接着と振動溶着とが用いられる。上記の接着
は最も一般的な手段であって、熱軟化性の接着剤である
ホットメルト（図示せず）を溶融させて周囲溝１ａ，１
ｂに注入し、その中へレンズ脚２ａ，２ｂを挿入して放
冷し、固化させることによって双方の部材を接着する。
振動溶着は最近発達した技術であって、これを図４の従
来例について説明すると次のごとくである。すなわち、
本例のレンズ２は自動車用のリヤーコンビネーションラ
ンプなどに用いられる細長いもので、長手方向に平行な
２辺を有している。上記平行２辺のそれぞれに沿ってレ
ンズ脚２ａと同２ｂとが設けられている。本図４には上
記レンズ脚２ａ，２ｂの横断面が現れているが、これを
立体的に考えると紙面の奥行方向に長い部材であって、
互いにほぼ平行をなしている。ランプハウジング１とレ
ンズ２とを密着させる方向に圧力を加えた状態で、これ
らの部材を紙面と直角方向に相対的に往復動させると、
レンズ脚の先端と周囲溝の底面とが摩擦発熱して溶着す
る。上記の往復動は、車両用灯具のレンズを溶着する場
合、振動数：数百ヘルツ、振幅：数ミリメートルが適度
である。前記２個のレンズ脚の平行度は１０度程度の誤
差が許容され、振動はレンズ脚の長手方向に与えられ
る。2. Description of the Related Art FIG. 4 is a sectional view showing a conventional example of a vehicular lamp having a structure in which a leg of a thermoplastic resin lens is fixed to a front opening of a lamp housing made of a thermoplastic resin. It corresponds to the front of the lamp. Around the front opening of the lamp housing 1, there are formed peripheral grooves 1a and 1b that are concave toward the front of the lamp. On the other hand, the lens legs 2a, 2b project from the back of the lens 2 toward the rear of the lamp, and the lens legs 2a, 2b are respectively provided in the peripheral grooves 1a,
1b. In the above configuration, as a means for fixing the lens 2 to the lamp housing 1, adhesion and vibration welding are used. The above-mentioned bonding is the most common means, and is performed by melting a hot melt (not shown), which is a heat-softening adhesive, to form the peripheral grooves 1a, 1a.
b, and the lens legs 2a and 2b are inserted therein, allowed to cool, and then solidified to bond both members.
Vibration welding is a recently developed technique, which will be described below with reference to the conventional example of FIG. That is,
The lens 2 of this example is an elongated lens used for a rear combination lamp for an automobile and has two sides parallel to the longitudinal direction. The lens legs 2a and 2b are provided along each of the two parallel sides. FIG. 4 shows a cross section of the lens legs 2a and 2b. When this is considered three-dimensionally, it is a member that is long in the depth direction of the paper surface.
They are almost parallel to each other. When these members are reciprocated in a direction perpendicular to the plane of the drawing while applying pressure in a direction in which the lamp housing 1 and the lens 2 are brought into close contact with each other,
The tip of the lens leg and the bottom of the peripheral groove are welded due to frictional heating. In the case of welding the lens of the vehicular lamp, the above-mentioned reciprocating motion has an appropriate frequency of several hundred hertz and an amplitude of several millimeters. An error of about 10 degrees is allowed in the parallelism of the two lens legs, and vibration is given in the longitudinal direction of the lens legs.
【０００３】[0003]
【発明が解決しようとする課題】本発明者は振動溶着技
術の進歩に着目し、これを車両用灯具におけるランプハ
ウジングとレンズとの固着に応用することについて研
究、実験を重ねてきた結果、次のような問題点が有るこ
とを確認した。 ａ）バリの発生 ｂ）溶着位置の誤差 ｃ）レンズ脚の変形，亀裂 以下、上記ａ）〜ｃ）についてそれぞれ説明する。図５
はレンズの振動溶着に関する問題点を説明するために示
したものであって（Ａ）は上掲の図４に示した従来例に
おいてレンズ脚が周囲溝の底面に当接している部分の断
面図、（Ｂ），（Ｃ）はそれぞれ本発明の実施例におけ
るレンズ脚と周囲溝との当接部付近の断面図である。こ
れらの図は原理的な構造と作用とを表すために模式化し
て描いてあるので、必ずしも写実的な投影図形ではな
い。（図５（Ａ）参照）レンズ脚２ａの先端部の幅寸法
Ｗ1は、周囲溝１ａの底面の幅寸法Ｗ2に比して小さい。
このため、ランプハウジング１に対してレンズ２が位置
決めされない。その結果、レンズ２の溶着位置の精度が
良くない。レンズ脚の先端と周囲溝の底面とが摩擦・発
熱・溶融して溶着される際、押圧されるので矢印ｄ，
ｄ′方向にバリを生じる。ところが、上述したように周
囲溝１ａに対するレンズ脚２ａの位置が不定であるた
め、上記矢印ｄ，ｄ′方向のバリの出方が不揃いで、外
見が悪く、商品価値を低下させるので好ましくない。SUMMARY OF THE INVENTION The present inventor has paid attention to the advancement of vibration welding technology, and has studied and applied it to fixing a lamp housing and a lens in a vehicular lamp. It was confirmed that there was a problem as described above. a) Generation of burrs b) Error in welding position c) Deformation and cracking of lens legs Hereinafter, the above a) to c) will be described respectively. FIG.
4A is a view for explaining a problem relating to vibration welding of a lens, and FIG. 4A is a cross-sectional view of a portion where a lens leg is in contact with a bottom surface of a peripheral groove in the conventional example shown in FIG. (B) and (C) are cross-sectional views of the vicinity of a contact portion between a lens leg and a peripheral groove in an embodiment of the present invention. These figures are schematically drawn to show the basic structure and operation, and are not necessarily realistic projection figures. (See FIG. 5A.) The width dimension W 1 of the tip of the lens leg 2a is smaller than the width dimension W 2 of the bottom surface of the peripheral groove 1a.
Therefore, the lens 2 is not positioned with respect to the lamp housing 1. As a result, the accuracy of the welding position of the lens 2 is not good. When the tip of the lens leg and the bottom of the peripheral groove are welded by friction, heat generation, fusion, and are welded, the arrow d,
Burrs occur in the d 'direction. However, as described above, since the position of the lens leg 2a with respect to the peripheral groove 1a is indefinite, the burrs in the directions of the arrows d and d 'are not uniform, which makes the appearance poor and reduces the commercial value, which is not preferable.
【０００４】（図４参照）レンズ脚２ａ，２ｂと周囲溝
１ａ，１ｂの溝底とを摩擦させるため、振動溶着加工は
加圧下で行なわれる。このため、レンズ脚２ａ，２ｂに
ベンディングが掛かり、変形を生じる。変形の方向は、
加圧力の状態や、関係部材の剛性，熱応力などの影響を
受けるので一概には言えないが、本発明者の実験によれ
ば、レンズ脚２ａは仮想線で示した２ｅのように、レン
ズ脚２ｂは仮想線で示した２ｄのように、それぞれ灯具
の内側に向けて変形する場合が非常に多い。上記のよう
なレンズ脚の変形に際して、その根本付近に亀裂を生じ
る虞れも有る。また、レンズ脚の変形によってレンズの
溶着位置精度はいっそう悪くなり、レンズ脚の変形によ
ってバリの発生状態がいっそう不安定になる。(See FIG. 4.) In order to cause friction between the lens legs 2a, 2b and the groove bottoms of the peripheral grooves 1a, 1b, vibration welding is performed under pressure. For this reason, bending is applied to the lens legs 2a and 2b, and deformation occurs. The direction of the deformation is
It cannot be said unconditionally because it is affected by the state of the pressing force, the rigidity of the related members, the thermal stress, and the like. However, according to the experiment of the present inventor, the lens leg 2a has a lens shape like 2e shown by a virtual line. The legs 2b are very often deformed toward the inside of the lamp, respectively, as indicated by 2d indicated by a virtual line. When the lens legs are deformed as described above, there is a possibility that a crack is generated near the root thereof. In addition, the deformation of the lens legs further deteriorates the welding position accuracy of the lens, and the deformation of the lens legs makes the occurrence of burrs more unstable.
【０００５】本発明は上述の事情に鑑みて為されたもの
であって、レンズ脚が変形したり亀裂を生じたるする虞
れが無く、レンズ溶着位置の精度が高く、しかもバリの
発生状態が一様であって外観を損じる虞れの無い、灯具
用レンズの振動溶着構造を提供することを目的とする。The present invention has been made in view of the above circumstances, and there is no possibility that the lens legs are deformed or cracked, the accuracy of the lens welding position is high, and the burr generation state is reduced. An object of the present invention is to provide a vibration welding structure for a lamp lens that is uniform and has no risk of impairing the appearance.
【０００６】[0006]
【課題を解決するための手段】上記の目的（レンズ脚変
形防止・精度向上・外観改善）を達成するため本発明の
振動溶着構造は、熱可塑性樹脂製ランプハウジングの前
面開口部の周囲の縁に、熱可塑性樹脂製レンズの脚が振
動溶着されてなる車両用灯具において、上記ランプハウ
ジングがレンズ脚に当接して振動溶着を施される部分
に、該レンズ脚の先端に接する斜面が形成されていて、
上記の斜面は、レンズ脚との接触線から灯具の斜前方に
延伸する形状であることを特徴とする。ただし、上記の
接触線とは、幾何学的に厳密な意味での、太さを有しな
い線に限られるものではない。In order to achieve the above objects (prevention of lens leg deformation, improvement of accuracy, and improvement of appearance), the vibration welding structure of the present invention comprises an edge around a front opening of a lamp housing made of thermoplastic resin. In a vehicle lamp in which the legs of a thermoplastic resin lens are vibration-welded, a slope that contacts the tip of the lens leg is formed at a portion where the lamp housing comes into contact with the lens leg and is subjected to vibration welding. And
The above-mentioned slope is characterized in that it has a shape extending obliquely forward of the lamp from a line of contact with the lens legs. However, the above-mentioned contact line is not limited to a line having no thickness in a geometrically strict sense.
【０００７】[0007]
【作用】上記の構造によると、ランプハウジングの前面
開口部の縁付近にレンズ脚の当接を受ける面と、灯具の
斜前方に延伸する面との境界に凹形の稜が形成され、レ
ンズ脚の先端面が上記の稜に接した位置に安定する。こ
の状態でレンズ脚が曲げ方向に変形しようとすると斜面
に乗り上げる形となるので曲げ変形が防止される。曲げ
変形の防止により、該レンズ脚の根本に亀裂を生じる虞
れも無くなる。レンズ脚の先端が上述のように斜面の麓
の凹形稜線に接して安定し、しかも該レンズ脚が変形し
ないので、ランプハウジングに対するレンズの溶着位置
精度が向上し、設計品質どおりの灯具性能が得られ、品
質が向上し、かつ安定する。レンズ脚の位置が一定にな
ると、バリの発生状態が安定する。のみならず、バリの
発生状態が確実に予想できるので、バリの発生状態を設
計段階で制御することも可能になり、製品の外観が改善
され、商品価値が高められる。しかも、本発明の構造
は、レンズ脚の先端に接する斜面を設ける、という簡単
なものであるから製造コストを増加させることは無視し
得る程度に小さい。According to the above structure, a concave ridge is formed at the boundary between the surface receiving the lens legs near the edge of the front opening of the lamp housing and the surface extending obliquely forward of the lamp. The tip surface of the leg stabilizes at the position in contact with the ridge. In this state, if the lens legs try to deform in the bending direction, the lens legs will ride on the slope, so that bending deformation is prevented. The prevention of bending deformation also eliminates the risk of cracking the root of the lens leg. As described above, the tip of the lens leg is stably in contact with the concave ridge line at the foot of the slope, and since the lens leg is not deformed, the precision of the welding position of the lens to the lamp housing is improved, and the lamp performance as designed quality is improved. Obtained, improved in quality and stable. When the positions of the lens legs are fixed, the state of occurrence of burrs is stabilized. In addition, since the state of occurrence of burrs can be reliably predicted, the state of occurrence of burrs can be controlled at the design stage, so that the appearance of the product is improved and the commercial value is enhanced. In addition, since the structure of the present invention is simple in that a slope is provided in contact with the tip of the lens leg, an increase in manufacturing cost is negligibly small.
【０００８】[0008]
【実施例】次に、図１ないし図３を順次に参照しつつ、
本発明の実施例を説明する。図１は熱可塑性合成樹脂製
ランプハウジングの前面開口部の周囲に、熱可塑性レン
ズのレンズ脚を振動溶着するように構成された車両用灯
具に本発明に係る振動溶着構造を設けた１例を示す断面
図であって、図の上方が灯具前方（投光方向）に相当す
るように描いてある。この実施例は図４に示した従来例
に本発明を適用して改良した１例であって、図４と同一
の符号を付したものは上記従来例におけると同様ないし
類似の構成部分である。符号にダッシを付して示したラ
ンプハウジング１′、および周囲溝１ａ′，同１ｂ′
は、それぞれ前記従来例におけるランプハウジング１、
および周囲溝１ａ，同１ｂに対応する改良部材である。
本実施例の周囲溝１ａ′の内周面には、レンズ脚２ａの
先端に接し、灯具の斜め前方（図の斜め上方）に延伸す
る斜面１ｃが形成されている。同様に周囲溝１ｂ′の内
周面には、レンズ脚２ｂの先端に接して灯具の斜め前方
に延伸する斜面１ｄが設けられている。この実施例の要
部を抽出して従来例と対比して模式的に描くと図５
（Ｂ）のごとくである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, referring to FIGS.
An embodiment of the present invention will be described. FIG. 1 shows an example in which a vibration welding structure according to the present invention is provided in a vehicle lamp configured to vibration weld a lens leg of a thermoplastic lens around a front opening of a lamp housing made of a thermoplastic synthetic resin. FIG. 3 is a cross-sectional view, in which the upper part of the figure is drawn so as to correspond to the front of the lamp (light projection direction). This embodiment is an example in which the present invention is applied to the conventional example shown in FIG. 4 and is improved. The same reference numerals as in FIG. 4 denote the same or similar components as those in the above conventional example. . The lamp housing 1 'and the peripheral grooves 1a' and 1b 'are shown by adding a dash to the reference numerals.
Are lamp housings 1 in the conventional example,
And improved members corresponding to the peripheral grooves 1a and 1b.
A slope 1c is formed on the inner peripheral surface of the peripheral groove 1a 'of this embodiment, which is in contact with the tip of the lens leg 2a and extends diagonally forward (diagonally upward in the drawing) of the lamp. Similarly, on the inner peripheral surface of the peripheral groove 1b ', there is provided a slope 1d which is in contact with the tip of the lens leg 2b and extends obliquely forward of the lamp. FIG. 5 is a schematic drawing of a main part of this embodiment extracted and compared with a conventional example.
(B).
【０００９】図１の実施例において、レンズ脚２ａに接
する斜面１ｃを設けたことによってランプハウジング
１′とレンズ２との位置ぎめ機能が果たされるので、図
示を省略するが斜面１ｄを省略し、もしくは斜面の段差
寸法ｈを極小に構成することもできる。上記の斜面１ｄ
の省略は、各種条件の総合によってレンズ脚２ｂが変形
したり亀裂を生じたりする虞れが無いと判断されたとき
に採用される。図２は上掲の図１の実施例において鎖線
の円Ａで囲んで示した部分の拡大断面図である。本例に
おける斜面１ｃは、周囲溝１ａ′のうち、灯室４に近い
側に設けてある。これは、図４（従来例）について説明
したように、レンズ脚２ａの曲がり変形の方向が、多く
の場合灯室４に接近する側であるため、これを防止する
ように設けたものである。上記と異なる実施例として、
本図２に仮想線で示して斑点を付したように斜面１ｅを
設けることもできる。このように構成すると、レンズ脚
２ａの位置ぎめがいっそう容易に、かつ確実に行なわれ
る。In the embodiment shown in FIG. 1, since the function of positioning the lamp housing 1 'and the lens 2 is achieved by providing the slope 1c in contact with the lens leg 2a, the illustration is omitted, but the slope 1d is omitted. Alternatively, the step size h of the slope can be made extremely small. The above slope 1d
Is adopted when it is determined that there is no possibility that the lens leg 2b is deformed or cracked due to the sum of various conditions. FIG. 2 is an enlarged sectional view of a portion surrounded by a chain line circle A in the embodiment of FIG. The slope 1c in this example is provided on the side near the lamp room 4 in the peripheral groove 1a '. As described with reference to FIG. 4 (conventional example), since the direction of the bending deformation of the lens leg 2a is mostly on the side approaching the lamp room 4, this is provided to prevent this. . As an embodiment different from the above,
The slope 1e may be provided as shown by a virtual line in FIG. 2 and spotted. With this configuration, the positioning of the lens legs 2a is more easily and reliably performed.
【００１０】図３は上掲の図２に仮想線で示した斜面１
ｅを設けた場合の、灯具全体を描いた断面図である。本
図３り実施例においてはレンズ脚２ｂに接する斜面１ｄ
に対向する斜面１ｆも設けてある。図示を省略するが、
さらに異なる実施例として、図３の構成から斜面１ｄ，
１ｆの何れか片方、若しくは両方を省略することもでき
る。この図３の実施例の要部を抽出し、従来例および前
記図１，図２の実施例と対比して模式的に描くと図５
（Ｃ）のごとくである。FIG. 3 shows a slope 1 indicated by an imaginary line in FIG.
FIG. 9 is a cross-sectional view illustrating the entire lamp when e is provided. In the embodiment shown in FIG. 3, the slope 1d is in contact with the lens leg 2b.
There is also provided a slope 1f opposed to. Although illustration is omitted,
As still another embodiment, the slope 1d,
Either one or both of 1f may be omitted. The essential parts of the embodiment of FIG. 3 are extracted and schematically drawn in comparison with the conventional example and the embodiments of FIGS.
(C).
【００１１】[0011]
【発明の効果】本発明を適用すると、ランプハウジング
の前面開口部の縁付近にレンズ脚の当接を受ける面と、
灯具の斜前方に延伸する面との境界に凹形の稜が形成さ
れ、レンズ脚の先端面が上記の稜に接した位置に安定す
る。この状態でレンズ脚が曲げ方向に変形しようとする
と斜面に乗り上げる形となるので曲げ変形が防止され
る。曲げ変形の防止により、該レンズ脚の根本に亀裂を
生じる虞れも無くなる。レンズ脚の先端が上述のように
斜面の麓の凹形稜線に接して安定し、しかも該レンズ脚
が変形しないので、ランプハウジングに対するレンズの
溶着位置精度が向上し、設計品質どおりの灯具性能が得
られ、品質が向上し、かつ安定する。レンズ脚の位置が
一定になると、バリの発生状態が安定する。のみなら
ず、バリの発生状態が確実に予想できるので、バリの発
生状態を設計段階で制御することも可能になり、製品の
外観が改善され、商品価値が高められる。しかも、本発
明の構造は、レンズ脚の先端に接する斜面を設ける、と
いう簡単なものであるから製造コストを増加させること
は無視し得る程度に小さいという優れた実用的効果を奏
する。When the present invention is applied, a surface for receiving the contact of the lens legs near the edge of the front opening of the lamp housing;
A concave ridge is formed at the boundary with the surface extending obliquely forward of the lamp, and the tip surface of the lens leg stabilizes at a position in contact with the ridge. In this state, if the lens legs try to deform in the bending direction, the lens legs will ride on the slope, so that bending deformation is prevented. The prevention of bending deformation also eliminates the risk of cracking the root of the lens leg. As described above, the tip of the lens leg is stably in contact with the concave ridge line at the foot of the slope, and since the lens leg is not deformed, the precision of the welding position of the lens to the lamp housing is improved, and the lamp performance as designed quality is improved. Obtained, improved in quality and stable. When the positions of the lens legs are fixed, the state of occurrence of burrs is stabilized. In addition, since the state of occurrence of burrs can be reliably predicted, the state of occurrence of burrs can be controlled at the design stage, so that the appearance of the product is improved and the commercial value is enhanced. In addition, the structure of the present invention has an excellent practical effect that the increase in manufacturing cost is negligibly small because the slope is provided simply in contact with the tip of the lens leg.
【図１】熱可塑性合成樹脂製ランプハウジングの前面開
口部の周囲に、熱可塑性レンズのレンズ脚を振動溶着す
るように構成された車両用灯具に本発明に係る振動溶着
構造を設けた１例を示す断面図であって、図の上方が灯
具前方（投光方向）に相当するように描いてある。FIG. 1 shows an example in which a vibration welding structure according to the present invention is provided on a vehicle lamp configured to vibration weld a lens leg of a thermoplastic lens around a front opening of a lamp housing made of a thermoplastic synthetic resin. And the upper part of the figure is drawn to correspond to the front of the lamp (light projection direction).
【図２】上掲の図１の実施例において鎖線の円Ａで囲ん
で示した部分の拡大断面図である。FIG. 2 is an enlarged sectional view of a portion surrounded by a chain line circle A in the embodiment of FIG. 1 described above.
【図３】上掲の図２に仮想線で示した斜面１ｅを設けた
場合の、灯具全体を描いた断面図である。FIG. 3 is a cross-sectional view illustrating the entire lamp when a slope 1e indicated by a virtual line in FIG. 2 is provided.
【図４】熱可塑性樹脂製ランプハウジングの前面開口部
に、熱可塑性樹脂製レンズの脚を固着した構造の車両用
灯具の従来例を示す断面図であって、図の上方が灯具前
方に相当している。FIG. 4 is a cross-sectional view showing a conventional example of a vehicular lamp having a structure in which a leg made of a thermoplastic resin is fixed to a front opening of a lamp housing made of a thermoplastic resin. doing.
【図５】レンズの振動溶着に関する問題点を説明するた
めに示したものであって（Ａ）は上掲の図４に示した従
来例においてレンズ脚が周囲溝の底面に当接している部
分の断面図、（Ｂ），（Ｃ）はそれぞれ本発明の実施例
におけるレンズ脚と周囲溝との当接部付近の断面図であ
る。5A and 5B are views for explaining a problem relating to vibration welding of a lens, and FIG. 5A is a portion where a lens leg is in contact with the bottom surface of a peripheral groove in the conventional example shown in FIG. And (B) and (C) are cross-sectional views of the vicinity of a contact portion between a lens leg and a peripheral groove in an embodiment of the present invention.
１，１′，１″…ランプハウジング、１ａ，１ａ′，１
ａ″，１ｂ，１ｂ′，１ｂ″…ランプハウジングの周囲
溝、１ｃ，１ｄ，１ｅ，１ｆ…レンズ脚に接する斜面、
２…レンズ、２ａ，２ｂ…レンズ脚、２ｃ，２ｄ…変形
したレンズ脚、３…光源バルブ、４…灯室。1, 1 ', 1 "... lamp housing, 1a, 1a', 1
a ", 1b, 1b ', 1b": peripheral groove of lamp housing, 1c, 1d, 1e, 1f: slope in contact with lens legs;
2 ... Lens, 2a, 2b ... Lens legs, 2c, 2d ... Deformed lens legs, 3 ... Light source bulb, 4 ... Light room.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭54−129781（ＪＰ，Ａ) 特開 平６−87164（ＪＰ，Ａ) 実開 平３−10411（ＪＰ，Ｕ) 実開 平３−94710（ＪＰ，Ｕ) 実開 昭58−113911（ＪＰ，Ｕ) 実開 平６−33305（ＪＰ，Ｕ) 実開 平６−33310（ＪＰ，Ｕ) 実開 昭58−99705（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F21S 8/10 G02B 3/00 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-54-129781 (JP, A) JP-A-6-87164 (JP, A) JP-A-3-10411 (JP, U) JP-A-3-10741 94710 (JP, U) Japanese Utility Model 1983-113911 (JP, U) Japanese Utility Model 6-33305 (JP, U) Japanese Utility Model 6-33310 (JP, U) Japanese Utility Model 58-99705 (JP, U) (58) Field surveyed (Int. Cl. 7 , DB name) F21S 8/10 G02B 3/00
Claims (1)
開口部の周囲の縁に、熱可塑性樹脂製レンズの脚が振動
溶着されてなる車両用灯具において、 上記ランプハウジングがレンズ脚に当接して振動溶着を
施される部分に、該レンズ脚の先端に接する斜面が形成
されていて、 上記の斜面は、レンズ脚との接触線から灯具の斜前方に
延伸する形状であることを特徴とする、灯具用レンズの
振動溶着構造。1. A vehicular lamp in which legs of a thermoplastic resin lens are vibration-welded to an edge around a front opening portion of a thermoplastic resin lamp housing, wherein the lamp housing abuts on the lens legs and vibrates. The portion to be welded is formed with a slope contacting the tip of the lens leg, and the slope has a shape extending obliquely forward of the lamp from a line of contact with the lens leg. Vibration welding structure for lamp lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06250840A JP3077530B2 (en) | 1994-10-17 | 1994-10-17 | Vibration welding structure of lamp lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06250840A JP3077530B2 (en) | 1994-10-17 | 1994-10-17 | Vibration welding structure of lamp lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08115606A JPH08115606A (en) | 1996-05-07 |
| JP3077530B2 true JP3077530B2 (en) | 2000-08-14 |
Family
ID=17213801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06250840A Expired - Fee Related JP3077530B2 (en) | 1994-10-17 | 1994-10-17 | Vibration welding structure of lamp lens |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3077530B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4815647B2 (en) * | 2008-09-01 | 2011-11-16 | スタンレー電気株式会社 | Vehicle lighting |
| WO2020255827A1 (en) * | 2019-06-21 | 2020-12-24 | 株式会社小糸製作所 | Vehicular lamp and cover for vehicular lamp |
-
1994
- 1994-10-17 JP JP06250840A patent/JP3077530B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08115606A (en) | 1996-05-07 |
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