JP2012226968A - Vehicular lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular lamp for improving the appearance when non lighting-up of the lamp which uses a plurality of light sources.SOLUTION: In the vehicular lamp having the light sources in a lamp chamber formed by a housing and a lens, the vehicular lamp includes the light sources at a rear part of a central part of the lens, a light incident part which makes light emitted from the light sources as parallel light, and a light-emitting part having a reflecting surface for reflecting the light incident into the light incident part. Wiring extended from the light sources of the light-emitting part to an end of the lens and a fixing part for fixing the wiring are formed on the rear surface of the lens, and a projection part is formed at a location opposite to at least the wiring of the light sources and the fixing part among the front of the lens.

Description

   The present invention relates to a vehicular lamp using a plurality of light sources, and relates to a lamp used for a rear lamp for an automobile, a daytime running lamp, and a signal lamp.

   2. Description of the Related Art Conventionally, there is a lamp as described in Japanese Patent Application Laid-Open No. 2004-151650 as to a vehicle lamp of this type.

  In Patent Document 1, an LED light-emitting unit 10 including a light guide 14 made of a transparent resin integrated with the reflecting surfaces 12a and 13a and an LED lamp 11 attached to the light guide, and incandescent behind the LED light-emitting unit 10 is disclosed. A vehicle signal lamp 1 including a light bulb 2 is disclosed.

JP 2002-216510 A

  In Patent Document 1, the LED lamp of the vehicular signal lamp 1 must be supplied with power from an external power source such as a battery, but no specific supply means is disclosed. Further, when such a vehicle signal lamp 1 is used, it is preferable not to cause an influence on the light distribution emitted from the incandescent bulb 2, and the wiring of the LED lamp 11 mounted on the light guide 14. It is conceivable to extend the LED from the LED lamp 11 to the end of the light guide. However, when the lamp is not lit, the wiring can be seen from the outside of the light guide, and the aesthetic appearance of the lamp is impaired.

  This invention is invented in view of such a situation, and it aims at solving the said subject.

In order to solve the above-mentioned problem, the invention according to claim 1 is a vehicular lamp including a light source in a lamp chamber formed by a housing and a lens, and the light source at the center rear part of the lens, A light-emitting unit including a light incident part that collimates light emitted from the light source, and a reflective surface that reflects light incident on the light incident part;
On the rear surface of the lens, a wiring extending from the light source of the light emitting unit to the end of the lens, and a fixing unit for fixing the wiring are formed,
The vehicular lamp is characterized in that a convex portion is formed at least at a position facing the wiring and the fixing portion of the light source of the light emitting portion on the front surface of the lens.

  According to a second aspect of the present invention, in the vehicular lamp according to the first aspect, a light source different from the light source of the light emitting unit is disposed in the vicinity of the housing, and the light emitted from the light source is emitted to the housing. A reflector for irradiating the front of the projector is formed.

  According to a third aspect of the present invention, in the vehicular lamp according to the first aspect, the convex portion extends from a line XA parallel to the optical axis X of the light source of the light emitting portion toward the vertical direction of the outer lens. Inclined in the 45 ° direction.

  ADVANTAGE OF THE INVENTION According to this invention, the appearance of the lamp at the time of a non-lighting is improved in a vehicle lamp with a some light source.

1 is a front view of a vehicular lamp according to a first embodiment. It is sectional drawing in the BB line shown in FIG. It is sectional drawing of the outer lens in the AA line shown in FIG. It is sectional drawing of the outer lens which shows the wiring of the light source of the light emission part in the CC line | wire shown in FIG. It is a perspective view of the outer lens right direction rear surface showing the wiring of the light source of the light emitting unit. It is a front view of the vehicle lamp in 2nd Embodiment. It is sectional drawing in the BB line shown in FIG. It is an enlarged view of the cross section in the CC line shown in FIG. It is sectional drawing of the conventional vehicle signal lamp.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a front view of a vehicular lamp 100 according to the first embodiment, FIG. 2 is a cross-sectional view taken along the line B-B in FIG. 1, and FIG. 3 is a cross-sectional view taken along the outer lens along the line A-A in FIG. FIG. 4 is a cross-sectional view of the outer lens showing the wiring of the light source of the light emitting section along the line C-C in FIG. 1, and FIG. 5 is a perspective view of the rear side of the right direction of the outer lens showing the wiring of the light source of the light emitting section. In the following description, the descriptions of “up”, “down”, “front”, “rear”, “left”, and “right” are used in correspondence with the drawings as directions viewed from the vehicular lamp 100 unless otherwise specified. .

  The present invention is a vehicular lamp that is mounted on the rear or front of a vehicle (not shown). As shown in FIGS. 1 and 2, the housing 112 has a front surface that is open, and a circular body that includes a rotating body that covers the front opening of the housing 112. A light source 111 and a reflector 113 are provided in a lamp chamber formed from the outer lens 107.

  The light source 111 is a light source of an incandescent bulb, and the outer lens 107 is made of a transparent resin member. The light emitted from the light source 111 is reflected by the reflector 113 and then passes through the outer lens 107 to emit light, and is used for a stop lamp, a high-mount stop lamp, a daytime running lamp, a turn signal lamp, and the like.

  As shown in FIG. 3, at the center of the rear surface of the outer lens 107 and the rear center of the outer lens 107 located in the vicinity of the center of the rear surface of the outer lens 107, a light source comprising an LED (light emitting diode) having an optical axis X forward of the lamp. 101, a light incident portion 102 that is a transparent resin member that controls light emitted from the light source 101, and a reflective surface 103 that is formed of an impermeable resin member that reflects light incident from the light incident portion 102; Is formed.

  The light incident part 102 is provided with a cut for controlling the light emitted from the light source 101 of the light emitting part A (hereinafter referred to as the light source 101) to be parallel to the optical axis direction X of the light source 101, and the reflecting surface 103 is light of the light source 101 It has a rotating body shape with the axis X as the center.

  As shown in FIG. 4, a wiring 108 for supplying power to the light source 101 and a fixing portion 109 formed of a convex member that fixes the wiring 108 in the vertical direction are formed on the rear surface of the outer lens 107. . In addition, among the end portions 110 of the outer lens 107 serving as the outer peripheral surface of the outer lens 107, a reflection surface 105 formed in a step shape is formed at the end portion 110 on the rear surface of the outer lens 107 as shown in FIG. .

  As shown in FIG. 5, the wiring 108 extends from the light emitting portion A to the end portion 110 of the outer lens 107 and extends further outward from the end portion 110. The fixed portion 109 is continuously formed up to the end portion 110 of the outer lens in the direction in which the wiring 108 extends.

  Of the front surface of the outer lens 107, the central portion 104, which is the surface facing the reflecting surface 103 of the light emitting portion A, is formed of an impermeable resin member as shown in FIG. It is made invisible by visual inspection. Further, in the front surface of the outer lens 107, two positions formed with a constant radius of curvature as shown in FIG. 4 are provided at positions facing the area where the wiring 108 and the fixing portion 109 are provided on the rear surface of the outer lens 107. Protrusions are formed. As shown in FIG. 1, the two convex portions are flute cuts 106 formed continuously from the center portion 104 to the left and right end portions 110 of the outer lens 107 in a direction parallel to the direction in which the wiring 108 extends. Yes.

  As shown in FIG. 4, the flute cut 106 is formed by two convex portions in the vertical cross-sectional shape of the vehicular lamp 100, and the two convex portions pass between the respective convex portions and the light source 101 of the light emitting unit A. This is formed so as to be inclined at an angle of 45 ° in the vertical direction from XA, which is a line parallel to the optical axis X.

  The vehicular lamp 100 according to the present invention is configured as described above, and the light emitted from the light source 101 of the light emitting unit A is parallel to the optical axis direction X of the light source 101 at the light incident unit 102. After being controlled, the light is totally reflected by the reflecting surface 103 formed of a rotating body, guided through the outer lens, and irradiated to the reflecting surface 105 positioned on the rear surface of the end portion 110 of the outer lens.

At this time, the light reflected by the reflecting surface 103 is reflected to the reflecting surface 105 formed on the rear surface of the end portion 110 of the outer lens 107 formed in a circular shape.
The light Z reflected by the reflecting surface 105 irradiates light forward of the lamp, and the end portion 110 of the outer lens appears to emit light uniformly in a ring shape.

  Further, when the lamp is visually observed by the flute cut 106 on the front surface of the outer lens, the wiring 108 of the light emitting unit A is refracted and cannot be seen. Therefore, the wiring 108 of the light source 101 of the light emitting unit A is visually observed when the lamp is not lit. It will not be done, and the beauty of the lamp will not be impaired.

  Subsequently, a second embodiment of the present invention will be described. In addition, the same code | symbol is provided about the component same as the said 1st Embodiment, and the description is abbreviate | omitted.

  6 is a front view of the vehicular lamp 100A of the second embodiment, FIG. 7 is a cross-sectional view taken along the line B-B in FIG. 6, and FIG. 8 shows the wiring of the light source of the light emitting unit along the line C-C in FIG. It is sectional drawing of the outer lens shown. As shown in FIGS. 6 and 7, a plurality of flute cuts 106 a formed continuously in the left-right direction are formed on the front surface of the outer lens 107 in the vertical direction.

  As shown in FIG. 7, the light emitted from the light source 111 is reflected by the reflector 113 and then emitted through the outer lens 107. A plurality of flute cuts 106a are formed on the front surface of the outer lens 107. As a result, the diffused light Y2, which is controlled according to the use of a lamp such as a stop lamp or a daytime running lamp, is irradiated by the plurality of flute cuts 106a without directly passing through the outer lens.

  Further, according to the second embodiment, as shown in FIG. 8, the light emitted from the light source 111 is irradiated on the wiring 108 on the back surface of the outer lens 107, reflected by the wiring 108, and emitted from the outer lens 107. Light that is not used as light distribution, such as stop lamps and daytime running lamps, is incident on the plurality of flute cuts 106a and is diffused as light C controlled by the flute cuts 106a, so that it is emitted from the light source 111. By using it as a light distribution for stop lamps, daytime running lamps, etc., light can be used effectively.

  According to the vehicular lamp 100A as described above, the same effect as the vehicular lamp 100 in the first embodiment can be obtained, and the light emitted from the light source 111 is reflected by the wiring 108 and stopped. Light that has not been used as a light distribution such as a lamp can also be used effectively so as to be used for the light distribution.

  In addition, as a modification of the first embodiment and the second embodiment, the light incident part 102 formed to face the light source 101 of the light emitting part A is an optical axis of light emitted from the light source 101 of the light emitting part A. Any light can be used as long as the light can be parallel to X, and the light source 101 of the light-emitting portion A may be provided with a convex lens to generate parallel light.

  Further, although the flute cut 106 is arranged to extend to the right of the outer lens 107, it may be formed in a direction parallel to the wiring 108 of the light emitting portion A, and may be formed not only in the right direction but also in the left and right and up and down directions. .

  Embodiments to which the present invention can be applied are not limited to the first and second embodiments described above, and can be changed as appropriate without departing from the spirit of the present invention.

  The present invention can be used for general lighting in addition to the vehicular lamp.

Vehicle light 100
Outer lens 107
Light emitting part A
Light source 101
Light receiving part 102
Reflective surface 103
Central 104
Stepped 105
Flute cut 106
Wiring 108
Fixed part 109
Edge 110
Light source 111
Housing 112
Reflector 113

Claims (3)

A vehicle lamp provided with a light source in a lamp chamber formed by a housing and a lens;
The center rear portion of the lens includes the light source, a light incident portion that converts the light emitted from the light source into parallel light, and a light emitting portion that reflects the light incident on the light incident portion,
On the rear surface of the lens, a wiring extending from the light source of the light emitting unit to the end of the lens, and a fixing unit for fixing the wiring are formed,
A vehicular lamp characterized in that a convex portion is formed at least at a position facing the wiring and the fixed portion of the light source of the light emitting portion on the front surface of the lens.   The light source different from the light source of the light emitting unit is disposed in the vicinity of the housing, and a reflector for irradiating light emitted from the light source to the front of the lamp is formed in the housing. The vehicular lamp according to 1.   The convex portion is inclined in a 45 ° direction toward the vertical direction of the outer lens from a line XA parallel to the optical axis X of the light source of the light-emitting portion in the vertical cross-sectional shape. The vehicular lamp according to claim 1.

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