DE2622525C2 - Seal for motor vehicle headlights - Google Patents
Seal for motor vehicle headlightsInfo
- Publication number
- DE2622525C2 DE2622525C2 DE2622525A DE2622525A DE2622525C2 DE 2622525 C2 DE2622525 C2 DE 2622525C2 DE 2622525 A DE2622525 A DE 2622525A DE 2622525 A DE2622525 A DE 2622525A DE 2622525 C2 DE2622525 C2 DE 2622525C2
- Authority
- DE
- Germany
- Prior art keywords
- seal
- notches
- symmetry
- groove
- plane
- 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
Links
Classifications
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/021—Sealings between relatively-stationary surfaces with elastic packing
- F16J15/022—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material
- F16J15/024—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material the packing being locally weakened in order to increase elasticity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/29—Attachment thereof
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Gasket Seals (AREA)
Description
Die Erfindung bezieht sich auf eine Dichtung für Kraftfahrzeug-Scheinwerfer nach der Gattung des An-Spruchs 1. Eine derartige Dichtung ist beispielsweise aus der DE-PS 1131536 bekannt, bei welcher mehrere Schrauben den die Abdichtung bewirkenden Druck erzeugen. Hierbei hat es sich gezeigt, daß auch bei sorgfältiger Abstimmung u. a. der Größe des Druckes und der Elastizität der Dichtung die Dichtheit nicht in allen Bereichen der Anlagefläche der Streuscheibe am Scheinwerfer/Gehäuse erreicht wird. Hierdurch ist ein Beschlagen der Innenflächen des Scheinwerfers nicht auszuschließen. The invention relates to a seal for motor vehicle headlights according to the type of claim 1. Such a seal is known for example from DE-PS 1131536, in which several Screws generate the pressure that creates the seal. It has been shown that even with more careful Voting, inter alia the size of the pressure and the elasticity of the seal, the tightness not in all areas the contact surface of the lens on the headlight / housing is reached. This causes fogging the inner surfaces of the headlamp cannot be ruled out.
Der Erfindung liegt daher die Aufgabe zugrunde, die gattungsgemäße Dichtung für Kraftfahrzeug-Scheinwerfer derart weiter zu bilden, daß die Dichtheit in allen Bereichen der gemeinsamen Anlagefläche auch dann erreicht wird, wenn insbesondere die Elastizität des Dichtmaterials und die Größe der Druckkraft in einem größeren Toleranzfeld liegen. Diese Aufgabe wird mit der Merkmalskombination des Anspruchs 1 gelöst.The invention is therefore based on the object of providing the generic seal for motor vehicle headlights to form further in such a way that the tightness in all areas of the common contact surface even then is achieved when, in particular, the elasticity of the sealing material and the magnitude of the compressive force in one larger tolerance field. This object is achieved with the combination of features of claim 1.
Bekannt ist aus dem Prospekt der Fa. Martin Merkel KG, Hamburg, eine ringförmige Manschettendichtung für Kolben und Kolbenstange in pneumatischen Zylindern. Der Zylinderdruck bewirkt zwar die Dichtheit in radialer Richtung, jedoch, nicht die in axialer Richtung zwischen jeder Seitenfläche und der benachbarten Nutflanke, so daß die erfindungsgewollte Dichtheit in allen Bereichen der gemeinsamen Anlagefläche nicht eintritt.An annular sleeve seal is known from the prospectus from Martin Merkel KG, Hamburg for pistons and piston rods in pneumatic cylinders. The cylinder pressure causes the tightness in the radial direction, but not that in the axial direction between each side surface and the adjacent one Groove flank, so that the tightness desired by the invention in all areas of the common contact surface does not occur.
Mit der Weiterbildung der Erfindung gemäß der Merkmalskombination des Anspruchs 2 wird die geforderte Dichtheit auch bei einem größeren Toleranzfeld der Kraft und/oder des Dichtmaterials erreicht.With the development of the invention according to the combination of features of claim 2, the required is Achieved tightness even with a larger tolerance field of the force and / or the sealing material.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der Figurenbeschreibung näher erläutert.An embodiment of the invention is shown in the drawing and in the description of the figures explained in more detail.
Die einzige Figur zeigt abschnittsweise eine Dichtung 10 in raumbildlicher, vergrößerter Darstellung. Die Dichtung 10 besteht aus einem elastischen Werkstoff, beispielsweise aus Gummi, Kunststoff oder Schaumstoff und hat ein in sich geschlossenes Profil mit trapezförmigem Querschnitt mit zwei Seitenabschnitten 11, 12 sowie einer oberen und unteren, zueinander parallelen Oberfläche 13,14. Jeder Seitenabschnitt 11,12 hat mehrere sägezahnförmige Kerben 15, deren Zahnkanten 16The single figure shows sections of a seal 10 in a three-dimensional, enlarged representation. the Seal 10 consists of an elastic material, for example rubber, plastic or foam and has a self-contained profile with a trapezoidal cross-section with two side sections 11, 12 and an upper and lower, mutually parallel surface 13, 14. Each side section 11, 12 has several sawtooth-shaped notches 15, the tooth edges 16
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2622525A DE2622525C2 (en) | 1976-05-20 | 1976-05-20 | Seal for motor vehicle headlights |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2622525A DE2622525C2 (en) | 1976-05-20 | 1976-05-20 | Seal for motor vehicle headlights |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2622525A1 DE2622525A1 (en) | 1977-12-08 |
DE2622525C2 true DE2622525C2 (en) | 1984-07-05 |
Family
ID=5978521
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2622525A Expired DE2622525C2 (en) | 1976-05-20 | 1976-05-20 | Seal for motor vehicle headlights |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2622525C2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9405756U1 (en) * | 1994-04-07 | 1994-06-01 | Hella Kg Hueck & Co | Headlights for vehicles |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3002612C2 (en) * | 1980-01-25 | 1982-09-09 | Robert Bosch Gmbh, 7000 Stuttgart | Elastic sealing element for vehicle headlights |
-
1976
- 1976-05-20 DE DE2622525A patent/DE2622525C2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9405756U1 (en) * | 1994-04-07 | 1994-06-01 | Hella Kg Hueck & Co | Headlights for vehicles |
Also Published As
Publication number | Publication date |
---|---|
DE2622525A1 (en) | 1977-12-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8120 | Willingness to grant licences paragraph 23 | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |