JP5160875B2 - Front combination lamp - Google Patents

Description

  In recent years, it has been called DRL (Daytime Running Lamp), and even in four-wheeled vehicles, in order to improve the visibility from pedestrians and oncoming vehicles, there is a lamp that is always turned on during daytime running. The present invention relates to the DRL.

  In motorbikes and motorcycles, it is a common practice to use the gaps between four-wheeled vehicles to perform overtaking and overtaking. It has been difficult to ascertain reliably, and for example, accidents such as contact with a motorcycle trying to pass through a side when turning to the left occur frequently.

  In order to solve this point, in motorbikes and motorcycles, it is possible to improve the visibility of other automobiles such as four-wheeled vehicles by turning on the headlamps even in the daytime. For motorbikes and motorcycles manufactured after 1996, it is determined that the headlamps cannot be turned off while the motor is operating. Yes.

  As a result, the improvement in visibility from motor vehicles and motorcycles from the side of a four-wheeled vehicle has been recognized for some time, resulting in a reduction in accidents, but at the same time, as shown in FIG. In addition, the first multiplex control unit 92 and the multiplex signal line 93 are turned on when the ignition switch 91 is turned on so that switching between the passing beam and the traveling beam and the headlamp 96 when necessary is possible. Therefore, a complicated configuration is required such that the second multiplex control unit 95 for driving either the high beam relay 94a or the low beam relay 94b is required, resulting in a problem that the product becomes complicated.

Furthermore, it has become clear that there are problems with the visibility of pedestrians from the side of a four-wheeled vehicle, or conversely, the confirmation of a two-wheeled vehicle and a four-wheeled vehicle from the side of a pedestrian. The current situation is that each country is considering legislation of regulations that allow vehicles other than motorcycles to be lit in the daytime.
JP 07-257268 A Road Transport Vehicle Law

  First of all, however, if all two-wheeled and four-wheeled vehicles are driven with their headlights turned on during the daytime, the headlights of the two-wheeled vehicles are masked by the headlights of the four-wheeled vehicles, In the daytime, the two-wheeled vehicle side becomes in the same state as when both were not lit, and the problem of losing the meaning of daytime lighting of the headlight of only the current two-wheeled vehicle occurs.

  In addition, the power consumption of a four-wheeled vehicle headlight is more than twice that of a two-wheeled vehicle headlight. It has also been pointed out that it causes an increase in the amount of CO2 that is desired to be reduced as a cause of global warming.

The present invention provides a front combination type lamp in which a plurality of lamps are covered with at least one lens as a specific means for solving the above-described conventional problems, and any one of the lamps includes a light source for DRL emission. with features a, the plurality of lamp the range to the light guide protrusions that do not impair the function formed in the lens thickness direction, to the light guide protrusions, the light from the DRL light emitting light source, the light guide a light take-cut to be introduced into the convex portion, characterized in that the light extraction cut is provided that emits toward the light taken into the light guiding protrusion portion in the irradiation direction before SL front combination light fixture By providing front combination lamps, it is possible to improve the visibility from pedestrians without masking the intermediate lighting of the headlamps of motorcycles. In addition, simplification of the circuit configuration, as can the cost, is intended to solve the problem.

  According to the present invention, a DRL light source is provided in any lamp having an inner lens, for example, a headlight housing, and a light guide convex portion is provided on a portion of the inner lens where light from the headlight does not interfere. By disposing a light source for DRL light emission on the provided inner lens and making the light guide convex portion shine with light from the light source for DRL light emission, the power consumption of the light source for DRL light emission can be set freely. For example, the distinction from the headlamp of a two-wheeled vehicle can be clearly determined for both a driver of a four-wheeled vehicle and a pedestrian, thereby improving the practicality.

  Below, this invention is demonstrated in detail based on embodiment shown in a figure. 1 to 3 is a diagram showing a main part of the front combination lamp 1 according to the present invention. FIG. 1 shows, for example, an inner lens 3 provided in a projector-type headlamp 2. It is a front view which shows an example when providing DRL10 using FIG.

  In this embodiment, the projection lens 2a of the projector-type headlamp 2 is installed substantially at the center of the inner lens 3, and the inner lens 3 is provided so as to cover the projection lens 2a. A DRL light source 11 that is a light source of the DRL 10 is provided inside the inner lens 3.

  At this time, as shown in FIG. 1, the DRL light source 11 does not disturb the light distribution characteristics of the projector-type headlamp 2 even when the projector-type headlamp 2 is turned on, that is, A position that does not block the light from the projection lens 2a is selected and installed.

  In this way, by installing the DRL light source 11, for example, when the engine of the automobile is rotating, the circuit setting is performed so that the DRL light source 11 is always lit. Although the function as the DRL 10 is satisfied, the front projection area of the four-wheeled vehicle is much larger than that of the two-wheeled vehicle, so that the DRL light source 11 is only lit to make it visible from other vehicles. Is not expensive.

  Therefore, in the present invention, a part that emits light by the light from the light source 11 for DRL emission is also provided in a part of the inner lens 3 to increase the light emission area as the DRL 10 and the above-described visibility is insufficient. The problem is compensated.

  FIG. 2 is an explanatory view showing a preferred arrangement example of the projector-type headlamp 2, the inner lens 3, and the DRL light source 11 described above, at the first focal point of the elliptical reflecting surface 2 b of the projector-type headlamp 2. The light emitted from the light source 2c converges in the vicinity of the second focal point set in the vicinity of the shade 2d, is shielded by the shade 2d, and forms a substantially circular semicircular light distribution shape, for example. Become.

  Here, since the projection lens 2a is focused in the vicinity of the shade 2d, the above-mentioned substantially lower chordal semicircular light distribution shape passes through the inner lens 3 and is enlarged and projected in the irradiation direction. To be. At this time, the light distribution shape projected by the projection lens 2a is inverted vertically and horizontally, so that it becomes a semicircular shape of an upper chord, and a passing light distribution that does not include upward light can be obtained. .

  In the present invention, the light guide convex portion 4 is provided on a portion of the inner lens 3 where light from the projection lens 2 a described above is not transmitted, and the light guide convex portion 4 is thicker than the inner lens 3. It is formed in a convex shape projecting from. For example, in the vicinity of the light source 11 for DRL light emission, the curvature on the inner surface side is set close to a plane, so that the light from the light source 11 for DRL light emission can be easily taken into the light guide convex portion 4. An optical capture cut 4b (see also FIG. 2) is provided.

As is clear from the explanatory diagram of FIG. 2, a thin portion 4a is preferably provided at the position where the light guide convex portion 4 and the inner lens 3 are joined, and once for the DRL light emission. The amount of light that has entered the light guide convex portion 4 from the light source 11 leaks to the inner lens 3 side is reduced. In addition, the light guide convex portion 4 is formed in an elongated shape as shown in FIG. 1, for example, a closed loop shape such as a frame shape, a circular shape, an elliptical shape, and the like with the inner lens 3. Matching is also planned.

  With the above configuration, the light from the DRL light source 11 incident on the light guide convex portion 4 travels along the shape of the light guide convex portion 4. For example, the light guide convex portion 4 If the light extraction cut 4c is provided on the surface on the irradiation side, the light guide convex portion 4 shines in the shape provided on the inner lens 3, and only the DRL light source 11 is provided. In comparison, the light emitting area is increased, and the visibility to other vehicles and pedestrians can be improved.

  In this embodiment, since a certain amount of light is required as the DRL light source 11, for example, a halogen bulb is used. However, the halogen bulb or the like is used to shield direct light. May be provided with a black top 11a. In such a case, a reflecting mirror 5 is provided at an appropriate position such as behind the DRL light source 11 and the light capture cut 4b is irradiated with light from the reflecting mirror 5. That's fine.

  In the present invention, an example in which a halogen light bulb or the like is used as the DRL light source 11 has been described. However, the DRL light source 11 continues to be lit while the automobile engine is rotating, for example. Therefore, a long life is required. Therefore, for example, a means of condensing light from a plurality of LED lamps with the reflecting mirror 5 and causing the light to enter the light capturing cut 4b can be considered.

  In this embodiment, the example of the projector-type headlamp 2 in which the cross-sectional area of the light beam emitted on the inner lens 3 side is relatively narrow has been described. However, the present invention is not limited to this, for example, Other lamps such as a front turn lamp and a position lamp may also be used. More specifically, in a small automobile, the outer lens itself is miniaturized. It may be provided on the outer lens (not shown) by various methods.

  In the present invention, the inner lens 3 (or outer lens) can be shared and used as the light emitting portion of the DRL 10, and thus can be implemented without significantly changing the configuration of the conventional front combination lamp 1. The power consumption of the lamp employed as the DRL light source 11 can be set freely, so that the optimum brightness as a so-called daytime lamp can be set.

  Further, as described above, since it is incorporated in the front combination type lamp 1, it is not necessary to prepare a housing or the like for providing a waterproof structure as compared with the case where it is formed separately. Further, it is not necessary to form the mounting location for mounting the DRL 10, and further, no control circuit for controlling the DRL 10 is required, so that the overall cost can be reduced.

It is a front view which shows the front combination type lamp which concerns on this invention in the principal part. Similarly, it is explanatory drawing which shows the structure of the front combination type lamp which concerns on this invention in the principal part. It is a wiring diagram which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Front combination type lamp 2 ... Projector type headlamp 2a ... Projection lens 2b ... Ellipse reflection surface 2c ... Light source 2d ... Shade 3 ... Inner lens 4 ... Light guide convex part 4a ... Thin part 4b ... Light capture cut 4c ... Light Take out cut 10 ... DRL
11 ... DRL light source

Claims (6)

In a front combination type lamp in which a plurality of lamps are covered with at least one lens,
With either of the lighting device features an DRL emitting light source, a light guiding protrusion portion formed in the lens thickness direction in a range that does not impair the function of the plurality of lamp,
The light guide convex portion introduces light from the light source for DRL emission into the light guide convex portion, and a light capture cut,
Front Combination lamp, characterized in that the light extraction cut emits toward the light taken into the light guiding protrusion portion in the irradiation direction before SL front combination light fixture is provided. The lens to the light guide protrusions are provided, with respect to the thickness of part of the lens, at least, claim 1 Symbol placement front Combination of characterized in that it is a convex shape with respect to one direction Light fixture. The front combination lamp according to claim 1 or 2 , wherein a thin portion is provided between the lens and the light guide convex portion. The lamp Kishirubekototsu unit before Ru provided in a range that does not impair the function of the lens, the front Combination according to any one of claims 1 to 3, characterized in that there is a closed loop Light fixture. The front combination lamp according to any one of claims 1 to 4 , wherein the lens is an inner lens provided in any of the plurality of lamps. The front combination lamp according to any one of claims 1 to 4 , wherein the lens is an outer lens that covers the entire front combination lamp.

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