JPH0369121B2 - - Google Patents
Info
- Publication number
- JPH0369121B2 JPH0369121B2 JP63246895A JP24689588A JPH0369121B2 JP H0369121 B2 JPH0369121 B2 JP H0369121B2 JP 63246895 A JP63246895 A JP 63246895A JP 24689588 A JP24689588 A JP 24689588A JP H0369121 B2 JPH0369121 B2 JP H0369121B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- housing
- outer lens
- mounting
- vehicle lamp
- 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 - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/27—Attachment thereof
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
本発明は、車両用灯具の製造方法に関するもの
であり、詳細には小型化などの理由によりハウジ
ングとインナーレンズ、アウターレンズとの接着
面積が充分に確保できないものの組立方法に係る
ものである。
The present invention relates to a method of manufacturing a vehicle lamp, and more particularly to a method of assembling a lamp in which a sufficient bonding area between a housing, an inner lens, and an outer lens cannot be secured due to reasons such as miniaturization.
従来の、この種の車両用灯具の構成および組立
方法の例を示すものが第５図であり、インナーレ
ンズ２１の例えば四隅に図示のような略Ｌ字状の
係着爪２２を設け、ハウジング２３のアウターレ
ンズ取付溝２３ａの内側の一部に切欠部２３ｂを
設け、前記係着爪２２と切欠部２３ｂとを嵌合さ
せ、熱溶融性の樹脂接着剤など比較的に硬化時間
の早い接着剤を前記アウターレンズ取付溝２３ａ
に注入し、アウターレンズ２４を含めた三者を接
着するものである。
FIG. 5 shows an example of the structure and assembly method of a conventional vehicle lamp of this type, in which approximately L-shaped locking claws 22 as shown are provided at the four corners of the inner lens 21, and the housing is attached to the housing. A notch 23b is provided in a part of the inner side of the outer lens mounting groove 23a of No. 23, and the locking claw 22 and the notch 23b are fitted into each other, using an adhesive having a relatively quick curing time such as a hot-melt resin adhesive. the outer lens mounting groove 23a.
The three components, including the outer lens 24, are bonded together.
しかしながら、前記した従来の方法は、ハウジ
ング２３にアウターレンズ取付溝２３ａを形成す
る必要があることから、前記アウターレンズ２４
の肉厚を含めて少なくともハウジング２３の肉厚
の３倍以上の巾を必要とするものであり、具体的
に説明すれば前記ハウジング２３の肉厚を３mmと
したときには、アウターレンズ取付溝２３ａの巾
は最低でも外寸で10mm程度が必要とされ、近来の
自動車デザインの主流となつている縦巾が50mm程
度と極度に狭い灯具を形成したときには有効な発
光巾として25〜30mm程度しか得られないものとな
り、照度低下などを来し実用性に大きな問題を生
ずるものと成り、この点の解決が課題とされるも
のであつた。
However, in the conventional method described above, since it is necessary to form the outer lens mounting groove 23a in the housing 23, the outer lens 24
The width of the outer lens mounting groove 23a is required to be at least three times the wall thickness of the housing 23, including the wall thickness of the outer lens mounting groove 23a. The width is required to be at least about 10 mm in external dimensions, and when forming an extremely narrow lamp with a vertical width of about 50 mm, which has become the mainstream in recent automobile designs, an effective light emitting width of only about 25 to 30 mm can be obtained. This results in a reduction in illuminance, which poses a major problem in practicality, and a solution to this problem has been an issue.
本発明は前記した従来の方法に生ずる課題を解
決するための具体的な手段として、ハウジングに
インナーレンズとアウターレンズとを固定して成
る車両用灯具において、前記インナーレンズは外
周を前記ハウジングの内周と嵌合状態で且つ突出
する複数の突起部を有する形状に形成され、前記
ハウジングは前記突起部をこのハウジングのアウ
ターレンズ取付面と略面一に保持する取付凹部が
形成され、前記アウターレンズは溶着面の内周を
前記ハウジングの内周と略同一に形成され、前記
ハウジングの前記アウターレンズ取付面と前記ア
ウターレンズの溶着面とで加熱した取付治具を挟
持して両面を溶融し、その後に前記取付治具を排
除して前記両面を圧接し溶着して前記インナーレ
ンズを挟着することを特徴とする車両用灯具のレ
ンズ固定方法を提供することで、レンズの取付寸
法を少なくして、前記従来の課題を解決するもの
である。
The present invention provides a vehicle lamp in which an inner lens and an outer lens are fixed to a housing, as a specific means for solving the problems that occur in the conventional method. The housing is formed in a shape having a plurality of protrusions that protrude and fit into the outer lens, and the housing is formed with a mounting recess that holds the protrusions substantially flush with the outer lens mounting surface of the housing. The inner periphery of the welding surface is formed to be substantially the same as the inner periphery of the housing, and a heated mounting jig is held between the outer lens mounting surface of the housing and the welding surface of the outer lens to melt both surfaces, By providing a method for fixing a lens of a vehicle lamp, the mounting dimensions of the lens can be reduced by providing a method for fixing a lens for a vehicle lamp, which is characterized in that the mounting jig is then removed and the inner lens is sandwiched by pressing and welding the two surfaces. This solves the conventional problems mentioned above.
つぎに、本発明を図に示す一実施例に基づいて
詳細に説明する。
第１図に符号１で示すものは本発明のレンズ固
定方法を採用した車両用灯具であり、この車両用
灯具１のハウジング２は従来例のものと異なりア
ウターレンズ取付溝は設けられず、ほぼ基本肉厚
のままで端面が形成され、この端面をもつてアウ
ターレンズ取付面２ａとされている。
同時に前記ハウジング２の前記アウターレンズ
取付面２ａと内周とに開口して複数の取付凹部２
ｂが設けられている。
これに対応してインナーレンズ３は前記ハウジ
ング２の内周に嵌合するような外周に形成され、
更に前記取付凹部２ｂに対応する位置に突起部３
ａが設けられ、この突起部３ａで前記ハウジング
２に係着するようにされ、このとき前記突起部３
ａは前記アウターレンズ取付面２ａより突出する
ことなく面一となるようにされている。
また、他の一方のレンズであるアウターレンズ
４は前記ハウジング２の内周とほぼ同一の内周を
もつ溶着面４ａを持つように形成される。
以上に説明したハウジング２、インナーレンズ
３およびアウターレンズ４の組付状態を示すもの
が第２図であり、前記ハウジング２の取付凹部２
ｂにインナーレンズ３が突起部３ａで係着し、ア
ウターレンズ４はその溶着面４ａでハウジング２
のアウターレンズ取付面２ａで突合せ状態となつ
ていて、前記インナーレンズ３の車両用灯具１前
方への脱落を防止している。
第３図は前記ハウジング２とアウターレンズ４
との溶着方法を工程の順に示すもので、先ず第３
図Ａに示すようにハウジング２とアウターレンズ
４とで第４図に示すような形状の溶着治具５を挟
み込む、このとき溶着治具５は略300℃程度に加
熱されているので、ハウジング２のアウターレン
ズ取付面２ａもアウターレンズ４の溶着面４ａも
溶融するものとなり、この時点で前記溶着治具５
を取り去り、ハウジング２とアウターレンズ４と
を圧接すれば、第３図Ｂに示すように両者は溶着
し一体化される。
Next, the present invention will be explained in detail based on an embodiment shown in the drawings. What is indicated by the reference numeral 1 in FIG. 1 is a vehicle lamp that employs the lens fixing method of the present invention.The housing 2 of this vehicle lamp 1 is different from the conventional example in that it does not have an outer lens mounting groove and is almost An end face is formed with the basic thickness unchanged, and this end face is used as the outer lens mounting surface 2a. At the same time, a plurality of mounting recesses 2 are opened on the outer lens mounting surface 2a and the inner circumference of the housing 2.
b is provided. Correspondingly, the inner lens 3 is formed with an outer periphery that fits into the inner periphery of the housing 2,
Further, a protrusion 3 is provided at a position corresponding to the mounting recess 2b.
a is provided, and is adapted to be engaged with the housing 2 by the protrusion 3a, and at this time, the protrusion 3
a is flush with the outer lens mounting surface 2a without protruding from it. Further, the other lens, the outer lens 4, is formed to have a welding surface 4a having an inner periphery that is substantially the same as the inner periphery of the housing 2. FIG. 2 shows the assembled state of the housing 2, inner lens 3, and outer lens 4 described above.
The inner lens 3 is engaged with the protrusion 3a, and the outer lens 4 is attached to the housing 2 with its welding surface 4a.
The inner lens 3 is abutted at the outer lens mounting surface 2a to prevent the inner lens 3 from falling off toward the front of the vehicle lamp 1. Figure 3 shows the housing 2 and the outer lens 4.
This shows the welding method for the
As shown in Figure A, a welding jig 5 having a shape as shown in Figure 4 is sandwiched between the housing 2 and the outer lens 4. Both the outer lens mounting surface 2a and the welding surface 4a of the outer lens 4 are melted, and at this point the welding jig 5
When the housing 2 and the outer lens 4 are pressed together, they are welded and integrated as shown in FIG. 3B.
以上に説明したように本発明により、ハウジン
グとアウターレンズとの両者にアウターレンズを
挟持するほぼ基本肉厚の突合せ状態の接合面を形
成し、この接合面を溶着治具で溶融し、両面を溶
着するレンズの取付方法としたことで、レンズ取
付に要する巾がほぼ基本肉厚のみと従来例の略1/
３とすることが可能となり、これにより縦巾の極
度に狭くされた車両用灯具においても発光面積を
広くし、充分な明るさの灯具が提供可能になると
云う優れた効果を奏するものである。
As explained above, according to the present invention, a butting joint surface of approximately the basic thickness is formed between the housing and the outer lens to sandwich the outer lens, and this joint surface is melted with a welding jig to bond both surfaces. By using a welded lens attachment method, the width required for lens attachment is only the basic wall thickness, which is approximately 1/1/2 of the conventional method.
3, and as a result, even in a vehicle lamp whose vertical width is extremely narrow, the light emitting area can be increased and a lamp with sufficient brightness can be provided, which is an excellent effect.
第１図は本発明に係る車両用灯具のレンズ固定
方法の一実施例を示す斜視図、第２図は第１図の
−線に沿う断面図、第３図は同じく本発明を
工程の順に示す断面図、第４図は同じく工程中に
使用される治具を示す斜視図、第５図は従来例を
示す斜視図である。
１……車両用灯具、２……ハウジング、２ａ…
…アウターレンズ取付面、２ｂ……取付凹部、３
……インナーレンズ、３ａ……突起部、４……ア
ウターレンズ、４ａ……溶着面、５……溶着治
具。
FIG. 1 is a perspective view showing an embodiment of the lens fixing method for a vehicle lamp according to the present invention, FIG. 2 is a sectional view taken along the line - in FIG. 1, and FIG. FIG. 4 is a perspective view showing a jig used in the same process, and FIG. 5 is a perspective view showing a conventional example. 1...Vehicle lamp, 2...Housing, 2a...
...Outer lens mounting surface, 2b...Mounting recess, 3
... Inner lens, 3a ... Protrusion, 4 ... Outer lens, 4a ... Welding surface, 5 ... Welding jig.
Claims (1)
ズとを固定して成る車両用灯具において、前記イ
ンナーレンズは外周を前記ハウジングの内周と嵌
合状態で且つ突出する複数の突起部を有する形状
に形成され、前記ハウジングは前記突起部をこの
ハウジングのアウターレンズ取付面と略面一に保
持する取付凹部が形成され、前記アウターレンズ
は溶着面の内周を前記ハウジングの内周と略同一
に形成され、前記ハウジングの前記アウターレン
ズ取付面と前記アウターレンズの溶着面とで加熱
した取付治具を挟持して両面を溶融し、その後に
前記取付治具を排除して前記両面を圧接し溶着し
て前記インナーレンズを挟着することを特徴とす
る車両用灯具のレンズ固定方法。1. In a vehicular lamp comprising an inner lens and an outer lens fixed to a housing, the inner lens has an outer periphery fitted with the inner periphery of the housing and is formed in a shape having a plurality of protruding protrusions; The housing is formed with a mounting recess for holding the protrusion substantially flush with the outer lens mounting surface of the housing, the outer lens has an inner periphery of a welding surface substantially flush with the inner periphery of the housing, and A heated mounting jig is sandwiched between the outer lens mounting surface and the welding surface of the outer lens to melt both surfaces, and then the mounting jig is removed and both surfaces are pressed and welded to form the inner lens. A method for fixing a lens of a vehicle lamp, characterized by sandwiching the lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63246895A JPH0294301A (en) | 1988-09-30 | 1988-09-30 | How to fix the lens of a vehicle lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63246895A JPH0294301A (en) | 1988-09-30 | 1988-09-30 | How to fix the lens of a vehicle lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0294301A JPH0294301A (en) | 1990-04-05 |
| JPH0369121B2 true JPH0369121B2 (en) | 1991-10-31 |
Family
ID=17155338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63246895A Granted JPH0294301A (en) | 1988-09-30 | 1988-09-30 | How to fix the lens of a vehicle lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0294301A (en) |
-
1988
- 1988-09-30 JP JP63246895A patent/JPH0294301A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0294301A (en) | 1990-04-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |