JP2018067502A - Vehicular lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular lighting fixture capable of preventing deterioration in appearance due to a bright and dark difference between a reflection surface part and a flange surface of a reflector during non-lighting time.SOLUTION: A vehicular lighting fixture 1 includes, in a lamp chamber 4 defined by a housing 2 and an outer lens 3 for covering an opening, at least a bulb (light source) 5, a reflector 6 in which a flange surface 6A is provided on one end in the width direction, and an extension 7 arranged in front of the light emission direction of the reflector 6. On the flange surface 6A of the reflector 6, a reflection cut 6a is formed for reflecting the light toward a bent part (one part) 7a of the extension 7, and at least the color of the bent part 7a of the extension 7 is made to be black. For example, the entire extension 7 is constituted by a black member (black resin).SELECTED DRAWING: Figure 4

Description

  The present invention relates to a vehicular lamp including a reflector having a flange surface at one end in the width direction.

  In vehicular lamps such as headlamps, a colored topcoat layer is provided on the reflector to add color to the reflected light of external light that enters the lamp chamber from the outside during non-lighting, such as during the daytime. Differentiating the appearance design of the lamp in color (for example, refer to Patent Document 1).

  In recent years, LEDs (light emitting diodes) with high brightness and long life are being used as light sources, but the light emitted from the LEDs exhibits a strong directivity. The entire light guide bar is caused to emit light by being incident on the light source, reflected in the process of guiding light within the light guide bar, and emitted outside. In this case, there arises a problem that the longitudinal end portion of the light guide bar shines brightly locally. A technique for solving such a problem is proposed in Patent Document 2.

  By the way, in order to improve the designability when the vehicular lamp is not lit, a method of providing a flange surface at one end in the width direction of the reflector has been conventionally employed. An example is shown in FIGS.

  7 is a front view of the headlamp with the housing and outer lens removed, and FIG. 8 is a cross-sectional view taken along the line CC of FIG. 7. The illustrated headlamp 101 has an outer lens 103 covering the housing 102 and its opening. In the lamp chamber 104 (see FIG. 8) defined by the above, a bulb 105 that is a light source, a reflector 106 that reflects light from the bulb 105 forward (to the right in FIG. 8), and the reflector 106 And an extension 107 disposed in front of the light emission direction (right side in FIG. 8).

  Here, a flange surface 106A is provided at one end in the width direction of the reflector 106 (the right end in the example shown in FIG. 7), and a plurality of cuts for improving the design are latticed on the flange surface 106A. It is given to the shape. The reflecting surface portion 106B having a large area excluding the flange surface 106A of the reflector 106 has a concave curved surface located on the back side (the back side in the vertical direction in FIG. 7) of the flange surface 106A. The surface of the reflective surface portion 106B is subjected to a reflection process such as aluminum vapor deposition.

JP 2001-273804 A JP 2014-026829 A

  However, in the headlamp 101 shown in FIGS. 7 and 8, the flange surface 106A of the reflector 106 is located on the front side when viewed from the front, and the reflective surface portion 106B other than the flange surface 106A is located on the far side. When the lamp is not lit, the flange surface 106A has no sense of depth. For this reason, the flange surface 106A looks bright, and the reflective surface portion 106B appears darker than the flange surface 106A. For this reason, a difference in brightness appears between the flange surface 106A and the reflective surface portion 106B of the reflector 106, and there is a problem that the appearance when the headlamp 101 is not lit is not good. Here, as shown in FIG. 8, when the headlamp 101 is not lit, for example, external light (sunlight) L1 incident horizontally on the flange surface 106A of the reflector 106 is reflected horizontally and emitted to the outside. Therefore, the flange surface 106A appears bright and shiny.

  The present invention has been made in view of the above problems, and an object thereof is to provide a vehicular lamp that can prevent deterioration in appearance due to a difference in brightness between a flange surface and a reflecting surface portion of a reflector when not lit. There is.

  In order to achieve the above object, according to the first aspect of the present invention, at least a light source and an integral or separate flange surface at one end in the width direction are provided in a lamp chamber defined by an outer lens that covers a housing and its opening. In the vehicle lamp that accommodates the reflector and the extension disposed in front of the reflector in the light emitting direction, a reflection cut that reflects light toward a part of the extension is formed on the flange surface of the reflector. In addition, at least a part of the color of the extension is black.

  According to a second aspect of the present invention, in the first aspect of the present invention, the entire extension is formed of a black member.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, an opening is formed in a part of the extension so as to allow light from a light source that is reflected by the inner surface of the extension to travel toward the flange surface of the reflector. It is characterized by that.

  According to the first and second aspects of the invention, a part of the external light (sunlight) incident on the vehicle lamp when not lit is reflected by the flange surface of the reflector and directed toward a part of the extension. Since the color of at least a part of the extension (the part receiving the light reflected from the flange surface of the reflector) is black, most of the reflected light is absorbed by a part of the extension and a part of the extension is part of the extension. Reflected by the part and emitted to the outside. Therefore, the reflected light from the flange surface provided in the reflector is attenuated, the flange surface looks dark, and the reflector is disposed behind the flange surface in the front view. Therefore, the appearance of the vehicular lamp when it is not lit is enhanced.

  According to the third aspect of the present invention, when the vehicular lamp is turned on, a part of the light from the light source is diffusely reflected and attenuated by the inner surface of the extension, and the attenuated reflected light passes through the opening formed in the extension. Then, it goes to the flange surface provided in the reflector. The attenuated reflected light is reflected by the flange surface provided on the reflector and emitted to the outside, so that the flange surface provided on the reflector looks dark even during lighting, and the flange surface and the reflection surface portion Since the difference in brightness is eliminated, the appearance of the vehicular lamp is enhanced.

It is a perspective view of the state which removed the housing and outer lens of the vehicle lamp which concern on Embodiment 1 of this invention. It is a front view of the state which removed the housing and outer lens of the vehicle lamp which concern on Embodiment 1 of this invention. It is the sectional view on the AA line of FIG. FIG. 3 is a sectional view taken along line B-B in FIG. 2. It is a sectional side view of the vehicle lamp which concerns on Embodiment 2 of this invention. It is a perspective view of the vehicle lamp principal part which concerns on Embodiment 2 of this invention. It is a front view of the state which removed the housing and outer lens of the conventional headlamp. It is CC sectional view taken on the line of FIG.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

<Embodiment 1>
1 is a perspective view of a vehicle lamp housing and an outer lens according to Embodiment 1 of the present invention, FIG. 2 is a front view of the vehicle lamp housing and an outer lens removed, and FIG. 2 is a cross-sectional view taken along line AA in FIG. 2, and FIG. 4 is a cross-sectional view taken along line BB in FIG.

  The vehicular lamp 1 according to the present embodiment is used as a headlamp disposed on the front left and right of the vehicle, and is disposed on the right side (right side when the vehicle is viewed from the front). The headlamp is shown and described. Since the basic configuration of the headlamp arranged on the left side is the same as that on the right side, illustration and description of the headlamp arranged on the left side are omitted.

  As shown in FIGS. 3 and 4, the vehicular lamp 1 according to the present embodiment used as a headlamp includes an interior of a lamp chamber 4 defined by a housing 2 and a transparent outer lens 3 covering a front opening thereof. Furthermore, a bulb 5 as a light source, a reflector 6 that reflects light emitted from the bulb 5 toward the front of the vehicle (rightward in FIGS. 3 and 4), and a light emission direction front of the reflector 6 (see FIGS. 3 and 4). It is arranged on the right side of FIG. 4 and accommodates the extension 7.

  The housing 2 is integrally formed of an opaque resin that does not transmit light, and a leg portion 3a projecting from the periphery of the opening of the outer lens 3 is formed in a fitting groove 2a formed at the periphery of the front opening. The lamp chamber 4 is defined by the housing 2 and the outer lens 3 as described above by inserting and adhering the leg portion 3a to the fitting groove 2a of the housing 2 with an adhesive 8 such as hot melt. The outer lens 3 is integrally formed of a transparent resin that transmits light.

  The reflector 6 is integrally formed of an opaque resin. As shown in FIGS. 1 and 2, a planar flange surface 6A is integrally formed at one end in the width direction (right end in the illustrated example). The portion of the reflector 6 having a large area excluding the flange surface 6A constitutes a concave curved reflection surface portion 6B that is recessed toward the back in front view. Here, the surface of the flange surface 6A and the reflection surface portion 6B of the reflector 6 is subjected to a reflection process such as aluminum vapor deposition. In this embodiment, the flange surface 6A is formed integrally with the reflector 6. However, the flange surface 6A may be separated from the reflector 6.

  The extension 7 is a member that covers the periphery of the reflector 6 and is entirely made of black resin that does not transmit light. The extension 7 is formed with an opening 7A for allowing the light emitted from the bulb 5 and traveling toward the front of the vehicle to pass through the reflector 6. At the lower end of the periphery of the opening 7A, the bulb 5 and A bent portion 7a extending horizontally at a substantially right angle toward the reflector 6 is integrally formed.

  Thus, on the surface of the flange surface 7A formed at one end in the width direction of the reflector 6 (right end in the present embodiment), as shown in FIGS. These reflection cuts 6a, in addition to the function of improving the design, are transmitted through the outer lens 3 and into the lamp chamber 4 when the vehicle lamp 1 is not lit, as shown in FIG. The incident external light (sunlight) L1, L2 has a function of reflecting (reflecting downward) toward the bent portion 7a of the extension 7.

  In the vehicular lamp 1 configured as described above, when current is supplied to the bulb 5 which is a light source at night or the like to emit light, a part of the light is directed forward as direct light, and the other light is reflected by the reflector. 6 is reflected by the reflecting surface portion 6B toward the front of the vehicle, and these lights pass through the transparent outer lens 3 and are irradiated forward to illuminate the front of the vehicle. Serves as a function.

  When the vehicle lamp 1 is not lit during the daytime or the like, a part of the external light (sunlight) L1 and L2 that passes through the transparent outer lens 3 and enters the lamp chamber 4 is as shown in FIG. In addition, the reflection cut 6a formed on the flange surface 6A of the reflector 6 reflects downward toward the bent portion 7a of the extension 7. In this embodiment, the entire extension 7 is made of black resin as described above. Therefore, most of the reflected light is absorbed by the bent portion 7a of the extension 7, and a part of the reflected light is reflected by the bent portion 7a of the extension 7 and emitted to the outside. Accordingly, the reflected light from the flange surface 6A of the reflector 6 is attenuated, and the flange surface 6A looks dark, and since it is arranged behind the flange surface 6A in the front view, the reflection surface portion 6B of the reflector 6 that looks dark As a result, there is an effect that the appearance of the vehicular lamp 1 when it is not lit is enhanced. Also, most of the external light (not shown) that directly enters the bent portion 7a of the extension 7 is absorbed by the black bent portion 7a. For this reason, there is almost no light reflected by the bent portion 7a of the extension 7 and incident on the flange surface 6A of the reflector 6 and reflected forward of the vehicle.

  In the present embodiment, the entire extension 7 is made of black resin. However, if only the surface (upper surface) of the bent portion 7a of the extension 7 is made black by painting or the like, the extension 7 is not necessarily made of black resin. Even if not, the same effect as described above can be obtained.

<Embodiment 2>
Next, a second embodiment of the present invention will be described with reference to FIGS.

  FIG. 5 is a side sectional view of the vehicular lamp according to the second embodiment of the present invention, and FIG. 6 is a perspective view of the main part of the vehicular lamp. In these drawings, those shown in FIGS. The same elements are denoted by the same reference numerals, and repetitive description thereof will be omitted below.

  In the vehicular lamp 1 according to the present embodiment, as shown in FIG. 5, the lower half of the thin flange surface 6 </ b> A of the reflector 6 so that a part of the light emitted from the bulb 5 reaches the inner surface of the extension 7 during lighting. As shown in FIG. 6, a plurality of (three in the illustrated example) elongated slit-like openings 7a1 are formed at appropriate intervals at locations facing the thin flange surface 6A of the bent portion 7a of the extension 7, as shown in FIG. They are arranged side by side in the width direction.

  By the way, in the vehicular lamp 1 according to the first embodiment, since the light emitted from the bulb 5 is difficult to reach the flange surface 6A of the reflector 6 at the time of lighting, the flange surface 6A is dark, and the flange surface 6A and the reflecting surface portion A difference in brightness occurs between 6B and 6B.

  However, in the vehicular lamp 1 according to the present embodiment, a part of the light L from the bulb 5 is diffusely reflected and attenuated on the inner surface of the extension 9 as shown in FIG. The plurality of openings 7a1 formed in the bent portion 7a are passed toward the flange surface 6A of the reflector 6. The attenuated reflected light is reflected by the flange surface 6A of the reflector 6 and travels toward the front of the vehicle. Therefore, the flange surface 6A of the reflector 6 looks dark even during lighting, and the flange surface 6A and the reflection surface portion 6B Since there is no difference between brightness and darkness, the effect of enhancing the appearance of the vehicular lamp 1 can be obtained.

  When the vehicular lamp 1 is not lit, the external light incident on the flange surface 6A of the reflector 6 is reflected downward by the reflection cut 6a formed on the flange surface 6A and passes through the opening 7a1 of the extension 7. The light is reflected by the reflecting surface formed on the inner surface of the extension 7 and attenuates inside the housing 2. For this reason, even when the vehicular lamp 1 is not lit, the flange surface 6A of the reflector 6 does not appear bright. Here, since the portion excluding the opening 7a1 of the bent portion 7a of the extension 7 is black, the external light incident on the flange surface 6A of the reflector 6 is reflected downward by the reflection cut 6a and the bent portion 7a of the extension 7 is reflected. Are absorbed by the black portion where the opening 7a1 is not formed. For this reason, even when the vehicular lamp 1 is not lit, the flange surface 6A of the reflector 6 does not appear bright.

  In the present embodiment, the elongated slit-like openings 7a1 are formed in the bent portion 7a of the extension 7 in the width direction. However, the direction of the opening 7a1 may be in the horizontal direction, and the mesh-like shape may be used instead of the slit-like one. A plurality of openings may be formed.

  Although the present invention has been described with respect to an embodiment in which the present invention is applied to a vehicular lamp used as a headlamp, the present invention is used as a tail / stop lamp, a position lamp, a DRL (Day Running Lamp), or the like. Of course, the present invention can be similarly applied to a vehicular lamp.

DESCRIPTION OF SYMBOLS 1 Vehicle lamp 2 Housing 2a Housing fitting groove 3 Outer lens 3a Outer lens leg part 4 Lamp chamber 5 Bulb (light source)
6 Reflector 6A Reflector Flange 6B Reflector Reflection 6a Reflector Cut 7 Extension 7A Extension Opening 7a Extension Bend (Part)
7a1 Extension opening 8 Adhesive L Light from light source L1, L2 Outside light (sunlight)

Claims (3)

In the lamp chamber defined by the outer lens covering the opening and its opening, at least a light source, a reflector provided with an integral or separate flange surface at one end in the width direction, and a light emission direction front of the reflector are disposed. In vehicular lamps that contain extensions,
A vehicular lamp characterized in that a reflection cut that reflects light toward a part of the extension is formed on a flange surface of the reflector, and at least a part of the color of the extension is black.   The vehicular lamp according to claim 1, wherein the entire extension is made of a black member. 3. The vehicular lamp according to claim 1, wherein an opening is formed in a part of the extension to allow light from a light source to be reflected by an inner surface of the extension and directed toward a flange surface of the reflector.

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