JPH0227444Y2 - - Google Patents

Description

[Detailed explanation of the idea]

This invention is a combination type headlamp that is effective in reducing air resistance while the car is running, and in which different lighting devices with different functions are integrally arranged on the sides and top of the car body. Regarding lighting. Modern automobiles are responding to the market demand for smaller and lighter vehicles, and at the same time, the issue of how to drive faster with less energy has been raised, and as part of these measures efforts are being made to reduce the air resistance of the vehicle body. For example, some cars are equipped with retractable lights that reduce air resistance by storing the headlights inside the vehicle body when the headlights are not in use. cannot avoid the influence of Moreover, this retractable lamp has the disadvantage that it cannot project a passing beam while the lamp is running. The headlights installed in automobiles have transitioned from round-shaped all-glass sealed beam lamps to square-shaped headlights, and then to rectangular-shaped semi-shielded beam lamps. In addition, there is a trend that light fixtures having multiple functions, in which a plurality of lamps such as sidemarkers, cornering lamps, turn signal lights, etc. are integrated into a headlamp, are gradually being adopted. The lens members attached to these lamps have also changed from simple flat lenses to complex-shaped lenses, such as lenses having a side surface where one end of the front surface is curved laterally and rearward. However, with these lens members, the focus is placed on the structure of the lamp itself rather than its suitability to the shape of the vehicle body, and therefore little consideration is given to the effects of air resistance during driving. If conventional headlights, sidemarker lights, turn signal lights, etc. are installed on the vehicle body as separate lights, please refer to Figures 1 to 3.
As shown in the figure, a gap W ₁ is created between the headlights 1 and the side marker lights 2, and a gap W ₂ is created between the upper edges of both the lights and the vehicle body 3. These gaps W ₁ and W ₂ are a factor in increasing the air resistance of the vehicle body. For this reason, there is a demand for measures to reduce air resistance as much as possible with respect to headlights that constitute a part of the front part of the vehicle body. Air resistance, which affects the running of a car, is determined by the shape, size, and running speed of the car body, and is expressed by the following general formula. D=1/2・C・ρ・V ²・A D: Air resistance C: Resistance coefficient determined by the shape of the car body ρ: Density of air V: Speed of the car A: Area of the front part of the car body The installed headlights are naturally involved in the above equation and affect the car's air resistance.
From the above equation, it can be seen that when the speed of the car doubles, the air resistance increases four times. As the speed of a car increases, the contact force between the road surface and the wheels of the wheels becomes weaker, and the car body lifts up due to the influence of air. In order to prevent this phenomenon, it is said that the best mechanical shape for the front part of an automobile is a "wedge-shaped" shape. Therefore, it is desirable that the headlights installed at the front of the vehicle body match the shape of the vehicle body. This invention was developed in view of the above, and aims to reduce the number of joints between light fixtures such as headlights, side marker lights, turn signal lights, etc. mounted on the front of the vehicle body, and the joints between the light fixtures and the vehicle body. This project aims to provide a headlamp that reduces air resistance by integrating the following lamps and by forming the lens member attached to the lamp into a shape that follows the curved front corner of the car and as part of the car body. be. That is, in the present invention, a front part, a side part extending from the front part to the side of the vehicle body, and an upper part extending slanting rearward from the upper edge of the front part are integrally formed. The headlight is a headlight in which a lens member is disposed in the lamp body 4, and lamps with different functions are arranged on each surface, and the bent portion of the upper surface that forms part of the front surface and the vehicle body surface is A combination is provided between the lamps, and the reflector 10 of the upper lamp is set back from the reflector 8 or 8' of the front lamp.

[Table] By applying colors and patterns to this upper surface, effects other than headlights can be obtained. As detailed above, since the headlamp of the present invention uses a lens member in which the front part, side part, and top part are integrally formed, there is no air resistance generated in the gaps between the respective lamps. The upper surface part forms part of the vehicle body and has an optimal inclination angle, which improves aerodynamic characteristics. A lamp with different functions from other lamps on the top surface,
For example, passing beams are arranged so that signals can be transmitted correctly to the vehicle ahead, making it easier to see the road ahead, and the lamp as a whole is a combination lamp with no waste. The upper part is slanted backwards from the front part, and the lamp on the upper part is set back, so when the front lamp is turned on, the lower end of the upper part is heated, which speeds up the fogging of the lens and improves forward visibility. If it's good, mark it. Since the bent part is placed between the lamps on the top and front parts, there is no problem with the light distribution design. It has excellent effects such as

[Brief explanation of the drawing]

Figure 1 is a front view showing an example of a conventional headlight and side marker light, Figure 2 is a cross-sectional plan view thereof, and Figure 3 is a
FIG. 4 is a front view showing an embodiment of the present invention, FIG. 5 is a cross-sectional plan view thereof, and FIG.
FIG. 7 is a vertical side view of the figure, and FIG. 7 is a perspective view extracting the lens member of FIG. 4. 3: Vehicle body, 4: Light body, 11: Lens member, 1
2: Front glass, 13: Side glass, 14: Top glass.

Claims (1)

[Scope of utility model registration request] A lens member is integrally formed with a front part, a side part extending from the front part to the side of the vehicle body, and an upper part extending slanting backward from the upper edge of the front part. A headlamp disposed on the body, in which lamps with different functions are arranged on each side, and a bent part between the front side and the top side forming a part of the body surface is interposed between the lamps. A combination type headlamp in which the reflector of the upper lamp is set back from the reflector of the front lamp.