JP2016119174A - Vehicular lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular lighting fixture capable of enhancing visibility from the vehicle lateral side without damaging a lighting feeling and appearance at non-lighting time.MEANS FOR SOLVING THE PROBLEM: In a vehicular lighting fixture 1 comprising a bulb (light source) 3, a reflector 7 for reflecting the light from the bulb 3, and an inner lens 8 arranged between the reflector 7 and an outer lens 5, which are stored in a lamp chamber S defined by a housing 4 and the outer lens 5 for covering an opening of the housing, a visibility angle cut 7a for reflecting the light from the bulb 3 to the vehicle lateral side is formed on a rear side of the bulb 3 of the reflector 7. Here, the outer lens 5 and the inner lens 8 are transparent lenses on which a cut for light distribution control is not applied. Also, the bulb 3 is placed vertically.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a vehicular lamp such as a tail lamp in which an irradiation angle to the side of the vehicle is defined.

  In some vehicular lamps, in order to improve the visibility from the side of the vehicle, the light irradiation angle toward the side of the vehicle is defined by a standard. In such a vehicular lamp, in order to satisfy the standard, the outer lens, the inner lens, or the reflector is cut for light distribution control.

  Patent Document 1 proposes a vehicular lamp shown in FIG.

  8 is a plan sectional view of the vehicular lamp proposed in Patent Document 1. In the illustrated vehicular lamp 101, the interior of the lamp chamber S defined by the housing 104 and the outer lens 105 covering the opening is provided. In addition, a bulb 103 that is a light source, a reflector 107 that reflects light from the bulb 103, an inner lens 108 disposed between the reflector 107 and the outer lens 105, and an extension that covers the periphery of the inner lens 108 111 is accommodated. In the vehicular lamp 101, an opening 100a is formed on the side of the reflector 107 and the extension 111.

  In such a vehicular lamp 101, the light beam L from the bulb 103 leaks from the opening 100a and is irradiated to the side of the vehicle. A light emission range in the direction of 85 ° from the outside is obtained, and the visibility of the vehicle lamp 101 from the side of the vehicle is enhanced.

JP 2010-272220 A

  However, when a light distribution control cut is applied to the inner lens or the reflector as in the prior art, there is a problem that a dark feeling is generated in that portion and the lighting feeling is deteriorated.

  Further, the vehicular lamp 101 proposed in Patent Document 1 shown in FIG. 8 has a problem that the appearance is poor because the opening 100a is visible from the outside when not lit.

  The present invention has been made in view of the above problems, and a purpose of the invention is to provide a vehicular lamp that can enhance the visibility from the side of the vehicle without impairing the lighting feeling and the appearance when not lit. It is to provide.

  In order to achieve the above object, a first aspect of the present invention provides a light source, a reflector that reflects light from the light source, a reflector that reflects light from the light source, a lamp chamber defined by an outer lens that covers a housing and an opening thereof, In the vehicular lamp that accommodates the inner lens disposed between the outer lens and the outer lens, a viewing angle cut that reflects light from the light source toward the vehicle side is formed on the back side of the light source of the reflector. Features.

  According to a second aspect of the present invention, in the first aspect of the present invention, the light source is a vertically placed bulb.

  According to a third aspect of the invention, in the first or second aspect of the invention, the outer lens and the inner lens are plain lenses that are not cut for light distribution control.

  According to the present invention, the outer lens and the inner lens are not cut for light distribution, and the viewing angle cut for reflecting the light from the light source toward the vehicle side is formed on the back side of the light source of the reflector. Neither the inner lens nor the reflector produces a dark feeling, the lighting feeling of the vehicular lamp is enhanced, and the light from the light source is irradiated to the side of the vehicle by the viewing angle cut formed on the reflector. Therefore, the visibility of the vehicle lamp from the side of the vehicle is enhanced.

  Further, since the viewing angle cut formed on the reflector is hidden behind the light source and cannot be seen from the front, the appearance of the vehicular lamp when not turned on is not impaired by the viewing angle cut.

It is a disassembled perspective view of the vehicle lamp which concerns on this invention. 1 is a front view of a vehicular lamp according to the present invention. It is the sectional view on the AA line of FIG. It is the B section enlarged detail drawing of FIG. It is the C section enlarged detail drawing of FIG. It is the DD sectional view taken on the line of FIG. It is a partial front view which shows the visual angle cut formation range to the reflector in the vehicle lamp which concerns on this invention. It is a plane sectional view of the vehicular lamp proposed in patent documents 1.

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

  1 is an exploded perspective view of a vehicular lamp according to the present invention, FIG. 2 is a front view of the vehicular lamp, FIG. 3 is a cross-sectional view taken along line AA in FIG. 2, and FIG. 5 is an enlarged detailed view of a portion C in FIG. 2, FIG. 6 is a sectional view taken along the line DD in FIG. 5, and FIG. 7 is a partial front view showing a visible angle cut forming range on the reflector in the vehicle lamp according to the present invention. It is.

  The vehicular lamp 1 according to the present embodiment is a tail lamp disposed on the left and right of the rear portion of the vehicle, and includes large and small bulbs 2 and 3 as light sources. Here, one large bulb 2 emits light mainly emitted toward the rear of the vehicle, and the other small bulb 3 emits light mainly emitted toward the side of the vehicle. Is. The configuration of the vehicular lamp 1 that functions as a tail lamp is symmetrical, and the basic configuration is the same for both. Therefore, only one vehicular lamp 1 will be illustrated and described below.

  The vehicular lamp 1 includes a housing 4 having a polygonal shape when viewed from the front. An opening of the housing 4 that opens toward the rear of the vehicle is formed by a transparent outer lens 5 (see FIGS. 3, 4, and 6). Covered. In the lamp chamber S (see FIG. 6) defined by the housing 4 and the outer lens 5, the reflector 6 (see FIG. 2) for reflecting the light from the bulb 2 and the light from the bulb 3 are provided. And a transparent inner lens 8 disposed between the reflector 7 and the outer lens 5 (on the back side of the outer lens 5). In the present embodiment, the outer lens 5 and the inner lens 8 are constituted by plain lenses that are not cut for light distribution. Further, in the present embodiment, the inner lens 8 transmits light emitted from the bulb 3, and as shown in FIG. 1 and FIG. It is molded into a V shape.

  Here, as shown in FIG. 6, the smaller bulb 3 that emits light mainly directed toward the side of the vehicle is fixed to the reflector 7 in a vertically placed state, and is emitted from the bulb 3. As shown in FIGS. 3 to 6, a viewing angle cut 7 a that reflects a part of the light from the bulb 3 toward the vehicle side is formed on the back side of the bulb 3 of the reflector 7 that reflects the reflected light. . The viewing angle cut 7a can be formed in the range of the projected area of the bulb 3 indicated by the oblique lines in FIG.

  On the other hand, as shown in FIG. 2, the larger bulb 2 is reflected by the reflector 6 that reflects the light from the bulb 2 toward the rear of the vehicle (front side in FIG. 2), and the light emission direction is the rear of the vehicle. It is fixed in the horizontal position. As shown in FIG. 1, the two bulbs 2 and 3 as light sources are connected to a power source (not shown) such as a battery via a power cord 9 and a connector 10 fixed to the end of the wire cord 9. ing.

  In the vehicular lamp 1 configured as described above, when current is supplied from a power source (not shown) such as a battery to the two valves 2 and 3 via the connector 10 and the power cord 9 (see FIG. 1), Each of the bulbs 2 and 3 lights up. The light emitted from one large bulb 2 is reflected toward the rear of the vehicle by the reflector 6, passes through the transparent outer lens 5 and is emitted toward the rear of the vehicle.

  The light from the small bulb 3 disposed above the bulb 2 is also reflected by the reflector 7 toward the rear of the vehicle, passes through the transparent inner lens 8 and the outer lens 5 and is emitted toward the rear of the vehicle. As shown in FIGS. 3 and 4, some of the light is reflected toward the side of the vehicle by a viewing angle cut 7 a formed on the back side of the bulb 3 of the reflector 7. The reflected light passes through the transparent inner lens 8 and the outer lens 5 and is refracted. In this embodiment, the reflected light is defined by a standard applied to the vehicle lamp 1 functioning as a tail lamp. The light is emitted toward the angle range of 80 ° outside the vehicle. Therefore, the visibility from the side of the said vehicle lamp 1 by the driver of a different vehicle, a pedestrian, etc. is improved, and the vehicle lamp 1 can satisfy the specification applied with respect to this.

  As described above, according to the vehicular lamp 1 according to the present embodiment, the outer lens 5 and the inner lens 8 are not cut for light distribution, and a part of the light from the bulb 3 is supplied to the vehicle side. Since the viewing angle cut 7a that reflects toward the back is formed on the back side of the bulb 3 of the reflector 7, no dark feeling is generated in any of the outer lens 5, the inner lens 8, and the reflector 7, and the lighting feeling of the vehicular lamp 1 And the light from the bulb 3 is irradiated to the side of the vehicle by the viewing angle cut 7a formed in the reflector 7, so that the visibility of the vehicular lamp 1 from the side of the vehicle is enhanced.

  Further, since the viewing angle cut 7a formed on the reflector 7 is hidden behind the bulb 3 and cannot be seen from the front, the appearance of the vehicular lamp 1 when not turned on is not impaired by the viewing angle cut 7a.

  In the above, the embodiment in which the present invention is applied to a vehicular lamp that functions as a tail lamp has been described. However, the present invention is also applicable to a vehicular lamp that is used for any other purpose. Of course there is.

1 Vehicle lamps 2, 3 Bulb (light source)
4 Housing 5 Outer lens 6, 7 Reflector 7a Viewing angle cut 8 Inner lens 9 Power cord 10 Connector S Light chamber

Claims (3)

A lamp chamber defined by a housing and an outer lens covering the opening includes a light source, a reflector for reflecting light from the light source, and an inner lens disposed between the reflector and the outer lens. In vehicle lamps,
A vehicular lamp characterized in that a viewing angle cut for reflecting light from the light source toward the vehicle side is formed on the back side of the light source of the reflector.   The vehicular lamp according to claim 1, wherein the light source is a vertically placed bulb. 3. The vehicular lamp according to claim 1, wherein the outer lens and the inner lens are plain lenses that are not cut for light distribution control.

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