FI98091C - Contour light for vehicles - Google Patents

Description

x 98091

Vehicle tail light

The invention relates to a vehicle end light which is used when a vehicle accessory exceeds the permissible limit of the width of the vehicle 5. The vehicle's high beam acts as a warning light for other road users. The most typical applications of extreme light are, for example, snow plows or the like.

Numerous extreme light structures are already known. 10 One of the best known is the end light with standard incandescent bulbs. However, incandescent bulbs cannot withstand the stresses caused by strong vibrations when used in conjunction with, for example, luraiauros or the like. A solution is also known in which the light bulb has been replaced by light-emitting diodes, i.e. 15 LEDs. In such a solution, a front resistor and the desired number of light emitting diodes are connected in series to the base of the incandescent lamp. In practice, however, the construction has proved to be quite poorly resistant to vibration. In addition, oxidation of the strain under severe conditions is a problem.

20 The provision of a simple and hermetically sealed structure which is very resistant to corrosion has proved problematic in practice. In previously known solutions, either the light source itself cannot withstand or the structures otherwise cannot withstand the stresses applied to them. 25 Road authorities in different countries have set requirements for extreme lights. Extremely light is usually required to show light both front and rear. Generally, the backlight is red and the forward light is amber. In addition, the extreme light may be required to be provided with reflectors at both the front and rear. There are also their own requirements for the intensity of the light used.

The object of the present invention is to provide a vehicle extreme light which is hermetically sealed, withstands the corrosion stresses caused by salting, is not susceptible to the stresses caused by vibration 2 98091 and is long-lasting under the above-mentioned operating conditions.

The vehicle end light according to the invention is characterized by what is stated in the following 5 claims.

The biggest and most significant advantage of the extreme light of a vehicle according to the invention is that it can withstand stressful conditions, such as an extreme light placed in a snow plow, better than hitherto known solutions. 10 The tubular frame made of metal for the vehicle's high beam withstands impact loads and corrosion very well. The mounting parts and covers of the light source shall be made of plastic or similar material which is highly resistant to corrosion and impact. In addition, the parts associated with the body 15 are spaced apart so as to achieve flexibility with respect to impact loads. Because light emitting diodes are used as the light source for the vehicle's extreme light, a very long service life and operational reliability against vibration are achieved. When using LEDs, a service life of up to 20 ten years is achieved. The switching of the LEDs is also arranged in such a way that variations in voltage do not cause changes in the illuminance and brightness of the light.

The invention will now be described in detail with reference to the accompanying drawings.

Figure 1 shows the placement of a vehicle end light in a snow plow.

Figure 2 shows the front end of the vehicle.

Figure 3 shows a side view of a vehicle end light.

Figure 4 shows the light source attached to the frame and sectioned.

In Figures 1-4, the number 1 refers to the extreme light of the vehicle. The number 2 refers to the snow plow and the number 3 to its upper-35 chord to which the vehicle's end lights 1 are attached.

3 98091

The vehicle carrying the Luxnia groove 2 is marked with the number 4. The body of the vehicle end light 1 is marked with the number 5, the vertical tube with the number 6, the horizontal tube with the number 7 and the foot with the number 8. The foot 8 has holes 9 for screw fastening.

5 The reflectors 10 are fixed to the vertical tube 6 by means of screws 11. Inside the horizontal tube 7 there is an inner tube 12 made of plastic or similar material, which at each end has threads 13 on its outer circumference. The sleeve 14 secures the glass 15 and the light source circuit board 16. 10 The sleeve 14 has a shoulder 17 for sealing the circuit board. 14 a shoulder 18, in front of which a ring seal 19 is placed, against which the glass 15 rests. The inner surface of the clamping ring 20 has threads 21 by means of which the clamping ring 20 is screwed into the corresponding threads 13 of the inner tube 12. The clamping ring 20 has a projection 22 which presses the glass 15 against the sleeve 14 and seals the structure hermetically by means of the ring seal 19. The circuit board 16 is sealed with resin 23 or a similar sheath of the sleeve 14 by pressing it against the shoulder 17. 20 The light source chamber is marked with the number 24 and the light emitting diodes or LEDs with the number 25. The electrical wires are marked with the number 26. The hole in the electric cable in the vertical pipe 6 is marked with the number 27.

The vehicle end light according to the invention operates in the following manner. The vehicle end light 1 is fastened by means of its foot 8 from the thighs 9 with screws to an object which is more than the permissible dimension, about half a meter, outside the vehicle. The reflectors 10 act as warning reflectors even when the light source itself is inoperative or damaged. The light emitting diodes or LEDs 25 are placed on the outer circumference of the circuit board 16, whereby as uniform a light as possible is obtained. If the light generated by the LEDs 25 is not sufficient, the number of LEDs can be increased by placing the required number of LEDs inside the perimeter in the center of the circuit board 16 35. By placing 8 LEDs on the outer periphery and 3 in the middle of the 3 98091 o'clock circuit board, the desired power and light pattern is obtained. To prevent the light source from being sensitive to vibration or corrosion, the light emitting diodes 25 are soldered to the circuit board 16. The chamber 24 is hermetically sealed by sealing the circuit board 5 16 with resin 23 to the sleeve 14. The other end of the chamber 24 is sealed by glass 15. The light chamber 24 is thus hermetically completely sealed. Vibration resistance is further improved by a double tube structure in which the inner tube 12 is placed inside the horizontal tube 7. Because the inner tube 12 is made of plastic or similar material, it withstands impact-like stresses and at the same time acts as a damping member which dampens the stresses on the light source. The electrical line 26 inside the inner tube 12 is led into the vertical tube 6 and out of the hole 27 therein.

It is natural that the extreme light construction of the vehicle can be done differently than shown in this embodiment. The body 5 itself can be constructed in another way. The vertical tube 6 of the body 5 can be replaced by a profile corresponding to the tube. Other structural changes can also be implemented within the scope of the inventive idea.

Claims (6)

Exterior edge light intended to be used in conjunction with a vehicle comprising a stonune (5, 5, 7, 12) provided with a light chamber (14, 15, 16, 24), in which light emitting diodes (25) mounted on a circuit board (16), the light chamber being hermetically sealed, characterized in that the body comprises a double tube part with an outer tube (7) of metal 10 and an inner tube (12) of plastic. or the like, and that the light chamber is designed as a sleeve structure (14, 15, 16, 24) abutting the inner tube (12). Exterior edge light (1) according to claim 1, characterized in that the inner tube (12) is provided at both ends with a light chamber (24) with associated parts, and that glass (15) is clamped in place by means of the threads (21) of a clamping ring (20) and the threads (13) of the inner tube (12). Exterior edge light (1) according to claim 1, characterized in that the inner tube (12), the sleeve (14) and the clamping ring (20) are made of plastic or a similar elastic material, attenuating shock stresses. and that said tension rings (20) read the inner tube (12) in place. 4. Exterior edge light (1) according to claim 1, characterized in that light emitting diodes (25) are attached to the circuit board (16) so that they form a desired light pattern and produce a sufficient light effect. Exterior edge light (1) according to claim 1, characterized in that an electrical conduit (26) used for power supply is encapsulated in the body (5) to prevent it from being damaged. Exterior edge light (1) according to claim 1, characterized in that the LEDs (25) attached to the circuit board (16) are so connected that the voltage variations do not change the light output. tl HM I III »lift» 4