JP5942746B2 - Combination lamp device for vehicle - Google Patents

Description

  The present invention relates to a combination lamp device mounted on a vehicle, and more particularly to a two-stage light guide structure of a lamp.

A combination lamp device in which a taillight, a brake, and a direction indicator are integrally formed is attached to the rear portion of the vehicle. In recent years, many of the light sources used in combination lamp devices use LEDs, and the design at the time of lamp lighting is also considered.
For example, there are ones in which LEDs are arranged in a line or ring shape, and ones in which light from the LEDs is irradiated into the tube to cause the tube to emit light. For example, patent document 1 is mentioned.

JP 2011-222377 A

The combination lamp device has a function of notifying the passenger of the following vehicle of the operation of the brake and the direction indicator and the position of the vehicle at night, so that not only design but also visibility is required.
An object of the present invention is to propose a vehicle combination lamp device having design and visibility.

  To achieve the above object, a vehicle combination lamp device according to the present invention includes a light source unit having a brake light source that is turned on when a brake is operated, a tail light source that is turned on when a light is operated, a brake light source, and a tail light source. In the vehicle combination lamp device mounted at the rear of the vehicle, the lens includes a reflector that covers the light source unit while exposing the light source unit, and a lens that covers the reflector, the light source for brake, and the light source for tail and transmits light. , Having a first light guide portion that extends in a tube shape and guides light from the tail light source therein, and the reflector further guides light that passes through the first light guide portion. It has a light guide part.

  According to the present invention, the reflector that covers the light source unit while exposing the brake light source and the tail light source, and the lens that covers the brake light source and the tail light source and transmits the light extend in a tube shape and extend to the tail light source. Since the reflector has a second light guide part that further guides the light passing through the first light guide part, the conventional light guide part guides the light from Thus, the light emission form is different from the case where the tail lamp is simply lit in a line shape, the appearance of the combination lamp device is good, the design is improved, and the light emitting area is large, so the visibility is also improved.

1 is a schematic view of a vehicle equipped with a combination lamp device according to the present invention. (A) is the front view which looked at the combination lamp apparatus from back, (b) is the top view of the combination lamp apparatus which concerns on this invention. The disassembled perspective view which shows the structure of the combination lamp apparatus which concerns on this invention. The expansion perspective view which shows the structure of the reflector which a combination lamp apparatus comprises. The expansion perspective view which shows the structure of the inner lens which a combination lamp apparatus comprises. The figure which shows the light emission area | region at the time of tail lamp part lighting. Sectional drawing of a combination lamp apparatus. The figure which shows the light emission state when the tail lamp part lights The figure which shows the light emission area | region and light emission state at the time of a brake lamp part lighting.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The vehicle combination lamp device 1 according to the present invention is detachably attached to the left and right corners of the rear portion 101 of the vehicle 100. As shown in FIG. 2A, the combination lamp device 1 includes a brake lamp portion 2 that is turned on when a brake is operated, a tail lamp portion 3 that is turned on when a light is operated, and a turn lamp portion 4 that is blinked when a turn indicator is operated. These are integrated as one unit and mounted on the rear portion 101 of the vehicle 100. As shown in FIG. 2 (b), the combination lamp device 1 is formed so as to be curved in a substantially L shape extending in the vehicle front direction and the vehicle width direction in a plan view as viewed from above the vehicle. 2 and the tail lamp part 3 are arranged so as to face the rear of the vehicle.

  As shown in FIG. 3, the combination lamp device 1 includes a housing 10 mounted on a vehicle rear portion 101, a light source unit 11, a brake lamp reflector 12, a turn lamp reflector 16, a bezel 14, an inner lens 13, and an outer lens. 15 are integrated in order from the vehicle inner side. The brake lamp reflector 12 functions as a reflector for a brake lamp 21 described later, and the turn lamp reflector 16 functions as a reflector for a turn lamp 40 described later. In the present invention, the lens refers to the inner lens 13.

  The resin housing 10 is provided with a mounting portion 10a to the vehicle body rear portion 101, and a turn lamp 40 serving as a light source of the turn lamp portion 4 is disposed at a lower portion of the housing 10. When the combination lamp device 1 is mounted on the vehicle rear portion 101, the turn lamp 40 is connected to a connector (not shown).

  In the light source unit 11, a large number (9 in this embodiment) of LEDs 21 that serve as light sources for brake lamps and two LEDs 22 and 23 that serve as light sources for tail lamps are mounted and arranged in a wiring unit (not shown). Many LED21 is arrange | positioned cyclically | annularly and the irradiation direction is made into the vehicle rear side. The two LEDs 22 and 23 are arranged so that the irradiation surfaces thereof are opposed to the end surfaces 33a and 34a of the light guide portions 33 and 34 (first guiding rear portions) arranged in a line in a tube shape formed on the inner lens 13. Has been placed. A large number of LEDs 21 are surrounded by light guides 33 and 34 arranged in a line, and are arranged along the light guides 33 and 34 in a line. In this embodiment, the LEDs 21, 22, and 23 emit red light. When the LED 21 to 23 that emits white light is used, the inner lens 13 or the outer lens is made transparent red.

  The brake lamp reflector 12 is attached to the housing 10 so as to cover the light source unit 11 from the rear side of the vehicle body while exposing the LEDs 21, 22, and 23 to the rear side of the vehicle. A turn lamp reflector 16 is joined to the housing 10 below the brake lamp reflector 12. The turn lamp reflector 16 is provided with an opening 161 into which the turn lamp 40 is inserted and a reflecting surface 162 that reflects the flashing light of the turn lamp 40.

  As shown in FIG. 4, the brake lamp reflector 12 is roughly divided into an irradiation area 12A in which a large number of brake lamp LEDs 21 are arranged and a non-irradiation area 12B. The irradiation region 12A is a region where a plurality of LEDs 21 are arranged, faces the rear of the vehicle, and is lower than the non-irradiation region 12B, and is formed as a recess 123 that shields light toward the front of the vehicle. A mounting hole 121 for independently holding each LED 21 arranged in a ring shape is formed in the irradiation region 12 </ b> A formed as the recess portion 123. The inner surface of the recessed portion 123 is formed as a reflecting surface 122 that mainly reflects the irradiation light from each LED 21 to the rear of the vehicle. Each LED 21 is inserted into these mounting holes 121 and held in an annular shape in the irradiation region 12A.

  The surface of the non-irradiation region 12B formed by curving toward the outside of the vehicle is subjected to fine concavo-convex wrinkle processing, and further transmits light that passes through light guide portions 33 and 34 of the inner lens 13 described later. A light guide portion 12D (second light guide portion) for guiding light is formed. The light guide unit 12D is formed so as to emit light uniformly with lower brightness than the light guide units 33 and.

  The inner lens 13 is formed of a transparent resin material and is mounted so as to cover the brake lamp reflector 12 from the outside of the vehicle body as shown in FIG. As shown in FIG. 5 and FIG. 6, the inner lens 13 has a light emitting surface 35 that serves as a brake lens part for diffusing the irradiated light toward the rear of the vehicle body and the LEDs 22 and 23 emit light when each LED 21 emits light. In addition, two light guide portions 33 and 34 (first light guide portions) serving as tail lens portions for introducing and guiding the irradiation light therein and a non-light emitting portion 36 serving as a non-light-distributed region. Is formed.

  The light guide portions 33 and 34 that are transparent light guide paths are formed integrally with the inner lens 13. The light guides 33 and 34 have a circular cross section and are used as tail lamps, and the two are arranged in different directions. That is, the light guide portion 33 is formed so as to be largely curved and extend in a line shape from the lower side to the upper side of the inner lens 13. The light guide 34 is formed so as to extend substantially horizontally below the inner lens 13 in a line. As described above, the light guide 33 and the light guide 34 have different light emission forms, and the design is improved. The light guide portions 33 and 34 are formed along the upper edge portion 35a and the lower edge portion 35b of the light emitting surface 35, and are configured such that the light emitting area of the light emitting surface 35 is enlarged during light emission.

  The LEDs 22 and 23 are arranged on one end face 33a and 34a side of each light guide. The light guides 33 and 34 are cut on the back surface to leak the irradiation light emitted from the LEDs 22 and 23 to the outside. By this cutting process, the irradiation light emitted from the LEDs 22 and 23 to the inside of the light guides 33 and 34 leaks to the outside, and light traveling behind the vehicle and around the light guides 33 and 34 is generated.

  When the end face 13a located at the end of the inner lens 13 is subjected to a graining process in which the end face has a concavo-convex shape in the range indicated by the symbol W, and light leaked from the light guides 33 and 34 is applied. It is configured to emit light uniformly. In addition, the illuminance of the end surface 13a of the inner lens 13 is lower than the illuminance of the light guides 33 and 34 when the light leaked from the light guides 33 and 34 strikes, and the light guides 33 and 34 are illuminated. Sometimes the light is distributed so as not to disturb the light.

  A plurality of dot-shaped recesses are formed on the rear surface side of the light emitting surface 35, and the light emitting region is formed so that the light emitting area is uniformly emitted rearward of the vehicle when each LED 21 is lit. That is, the light emitting surface 35 is a surface of the lens facing each LED 21 and is formed in an uneven shape so that the irradiation light from each LED 21 is not dispersed, and its illuminance is increased.

  In this embodiment, the light emitting surface 35 is formed such that the width of the light emitting surface 35 that emits light when each LED 21 is turned on is thicker than the light emitting width of the light guide portions 33 and 34 that emit light when the LEDs 22 and 23 are turned on.

The bezel 14 is disposed between the brake lamp reflector 12 and the inner lens 13, and covers a portion 12C of the non-irradiation area 12B of the brake lamp reflector 12 on the vehicle front side and a lower part of the irradiation area 12A. It covers.
The outer lens 15 is formed of a transparent resin material and is attached so as to cover the inner lens 13 from the outside of the vehicle body as shown in FIG.

The lighting pattern of the combination lamp device 1 having such a configuration will be described.
When the front light switch of the vehicle 100 is turned on, light is emitted from the LEDs 22 and 23, and the irradiated light passes through the light guides 33 and 34 as shown in FIGS. 6 and 7, as shown in FIG. As described above, the light guides 33 and 34 as tail lamps are mainly lit in a thin line shape to emit light. A part of the light irradiated into the light guide parts 33 and 34 leaks out of the light guide parts 33 and 34 by the cutting process. The leaked light illuminates the surface of the non-irradiated region 12B of the reflector 12 that has been subjected to the squeezing process, that is, the second light guide part 12D, and passes through the inner lens 13 to the squeezed end surface 13a of the inner lens 13. Then, the light emitting surface 35 is also illuminated.

  Therefore, the light guides 33 and 34 are brightly lit in a line shape above and below the light emitting surface 35 that shines lightly, and the non-irradiation region 12B (second light guide 12D) and the end surface 13a of the inner lens 13 are lifted. In addition, the light is guided in two stages. Therefore, the design is improved, and the unique lighting pattern that shines in a line shape makes the visibility from the rear vehicle better than when the entire inner lens is lit when traveling at night.

  In addition, as shown in FIG. 6, the vehicle front side portion 12 </ b> C of the non-irradiation region 12 </ b> B is covered with the bezel 14, and thus the light that has been leaked from the light guide unit 33 in the non-irradiation region 12 </ b> B (second light guide unit 12 </ b> D). Even if it is illuminated, the light is shielded from the front side of the vehicle so that it does not leak, so that the design can be improved by controlling the light emission state of the non-irradiated region 12B (second light guide portion 12D). .

  When the brake pedal is operated, light is emitted from each of the LEDs 21 arranged in a ring shape, and as shown in FIG. 9, the light emitting surface 35 of the inner lens 13 emits light in a dot-like manner due to the arrangement of the LEDs 21. However, the entire surface emits light in a ring shape.

  Thus, since the light emission forms of the brake lamp part 2 and the tail lamp part 3 are different light emission forms such as a line shape and an annular shape, the appearance of the combination lamp device 1 is good and the design is improved. Further, when the brake lamp unit 2 is lit, the light emitting surface 35 emits light in a wider range than when the tail lamp unit 3 is lit, so that the visibility is further improved and warning of danger to the occupant of the following vehicle is given. Can do.

  Further, the light guides 33 and 34 are formed along the upper edge 35a and the lower edge 35b of the light emitting surface 35, and the many LEDs 21 are arranged in a line shape. Is arranged along the line-shaped light guides 33 and 34, so that when the brake lamp unit 2 is lit at night when the tail lamp unit 3 is lit, the light emitting areas of the light guides 33 and 34 are enlarged. Will be. In other words, when shifting from the tail lamp lighting state to the brake lamp lighting state, the light guides arranged in a line shape appear to have changed thickly and can be recognized dynamically, and the occupant of the following vehicle can perform the brake operation. It is easy to recognize and the visibility can be further improved.

DESCRIPTION OF SYMBOLS 1 Vehicle combination lamp apparatus 11 Light source unit 12 Reflector 12D 2nd light guide part 13 Lens 13a Lens end surface 21 Brake light source 22, 23 Tail light source 33, 34 1st light guide part 35 Light-emitting surface 101 Vehicle rear part 123 Hollow

Claims (4)

A light source unit having a brake light source that is turned on when the brake is operated, and a tail light source that is turned on when the light is operated;
A reflector that covers the light source unit while exposing the brake light source and the tail light source;
In the vehicle combination lamp device mounted on the rear of the vehicle, comprising a lens that covers the reflector, the brake light source, and the tail light source and transmits light.
The lens has a first light guide portion that extends in a tube shape and guides light from the tail light source to the inside thereof.
The vehicle combination lamp device, wherein the reflector includes a second light guide unit that further guides light passing through the first light guide unit.   The vehicle combination lamp device according to claim 1, wherein an end surface of the lens covering the second light guide portion is formed in an uneven shape. 3. The vehicle combination lamp device according to claim 1, wherein the second light guide unit is configured such that a surface of the reflector is formed in an uneven shape . 4. The lens and the reflector are curved from the rear of the vehicle toward the front of the vehicle,
2. The brake light source is disposed in the light source unit so as to correspond to a recessed portion formed in the reflector so as to shield light from the brake light source toward the front of the vehicle. 4. A combination lamp device for a vehicle according to item 2 or 3.

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