JP2013211237A - Vehicular lighting fixture - Google Patents

Abstract

[PROBLEMS] To see no light even when viewed through a lens from above a vehicle lamp.
The light source bulb includes an inner lens, a reflector, a first shade, and a second shade. The reflector 4 has a reflecting surface 46 that reflects the light L1 from the light source bulb 2 toward the inner lens 3 side. The first shade 5 is disposed in front of and above the light source bulb 2. The second shade 6 is disposed in front of and below the light source bulb 2. As a result, even when the present invention is viewed through the inner lens 3 from the upper side of the vehicular lamp 1, no flashing can be seen.
[Selection] Figure 1

Description

  The present invention relates to a vehicular lamp such as a turn signal lamp, a clearance lamp, and a daytime running lamp.

  This type of vehicular lamp is conventionally known (for example, Patent Document 1). Hereinafter, a conventional vehicle lamp will be described. A conventional vehicular lamp includes a light source bulb, a lens, and a lamp housing having a reflecting surface. When the light source bulb is turned on, the light from the light source bulb is reflected on the lens side by the reflecting surface, and the reflected light passes through the lens and is irradiated outside the vehicle.

Japanese Patent Laid-Open No. 11-32436

  In such a vehicular lamp, the light source bulb is disposed at a position hidden behind the inner housing and invisible from the lens side. As a result, even if the light source bulb is turned on, the light source bulb is hidden behind the inner housing and cannot be seen from the lens side, so that the problem that the light source bulb is visible in a lit state through the lens is eliminated and the appearance is improved. . However, in the conventional vehicular lamp, light from the light source bulb may enter the reflecting surface on the lens side and below the light source bulb. In this case, when the lens is viewed from above the vehicular lamp, the reflection surface may appear to be lit up.

  The problem to be solved by the present invention is to provide a vehicular lamp that does not show any flashing when viewed through a lens from above the vehicular lamp.

  The present invention (the invention according to claim 1) is disposed on the lens side and above the light source bulb, the light source bulb, the lens, the reflector having a reflecting surface for reflecting the light from the light source bulb to the lens side, and the light source bulb. A first shade and a second shade disposed on the lens side and below the light source bulb are provided.

  This invention (invention according to claim 2) is characterized in that the light source bulb is arranged such that the axis of the light source bulb is substantially parallel to the lens and the reflecting surface.

  In this invention (the invention according to claim 3), a light-impermeable member is disposed on the light irradiation side of the lens, and the lens design is made by allowing the light irradiated from the lens to pass through the light-impermeable member. An opening for forming a light emitting surface is provided.

  In the vehicular lamp of the present invention, the second shade can block the light from the light source bulb from entering the reflecting surface on the lens side and the lower side of the light source bulb. Even if I look through the lens, I can't see the light.

1 is a longitudinal sectional view (vertical sectional view) showing an embodiment of a vehicular lamp according to the present invention, and is a sectional view taken along line II in FIG. FIG. 2 is a longitudinal sectional view (vertical sectional view) showing a vehicular lamp that does not include the first shade and the second shade, and is a sectional view corresponding to FIG. 1. FIG. 3 is a partial perspective view showing a state in which the inner lens is removed. 4 is a cross-sectional view taken along line IV-IV in FIG.

  DESCRIPTION OF EMBODIMENTS Embodiments (examples) of a vehicular lamp according to the present invention will be described below in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. In this specification and claims, front, rear, up, down, left, and right are front, back, up, down, left, and right when the vehicle lamp according to the present invention is mounted on a vehicle. .

(Description of Configuration of Embodiment)
Hereinafter, the configuration of the vehicular lamp 1 in this embodiment will be described. The vehicular lamp 1 according to this embodiment is a vehicular lamp such as a turn signal lamp, a clearance lamp, or a daytime running lamp as a front combination lamp. The vehicular lamp 1 is mounted on both the left and right sides of the front portion of the vehicle. The front portion of the vehicle is inclined (slant) from the front side to the rear side of the vehicle from the inside to the outside of the vehicle in a plan view, and is It is slanted from side to top.

(Description of vehicle lamp 1)
As shown in FIGS. 1, 3, and 4, the vehicle lamp 1 includes a light source bulb 2, an inner lens 3 as a lens, a reflector 4, a first shade 5 and a second shade 6, and an inner panel. (Inner housing) 7 and a lamp housing and an outer lens (for example, a plain outer cover, a lamp lens, etc.) not shown.

  The light source bulb 2, the inner lens 3, the reflector 4, the first shade 5, the second shade 6, and the inner panel 7 constitute a lamp unit. The lamp units 2, 3, 4, 5, 6, 7 are disposed in a lamp chamber defined by the lamp housing and the outer lens. In addition to the lamp units 2, 3, 4, 5, 6, and 7, other lamp units such as a headlamp, a fog lamp, and a cornering lamp may be disposed in the lamp chamber.

(Description of reflector 4)
The reflector 4 is attached to the lamp housing. In the reflector 4, the inner part 40 of the vehicle, the rear part 41 of the vehicle, the upper part 42 of the vehicle and the lower part 43 of the vehicle are closed, and the outer part of the vehicle and the front part of the vehicle are blocked. It has a hollow shape with an open part. The reflector 4 has closed portions 40, 41, 42, and 43 that are closed on one side, and an opening 44 that is open on the other side.

  An insertion hole 45 is provided in the inner portion 40 of the vehicle. On the inner surface of the closing portions 40, 41, 42, 43 of the reflector 4, a reflecting surface 46 is provided for reflecting the light L1 (see the two-dot chain line) from the light source bulb 2 toward the inner lens 3 side. Yes. The reflective surface 46 is provided with a design such as a knurl or a cylindrical object.

(Description of light source bulb 2)
The light source bulb 2 is a wedge base type light source bulb. The light source bulb 2 has a glass tube 21 that encloses the filament 20. The glass tube 21 is detachably attached to the socket 22 and is electrically connected thereto. A harness 23 for supplying a current from a power source (not shown) such as a battery is electrically and mechanically connected to the socket 22.

  The light source bulb 2 is detachably attached to the lamp housing or the reflector 4. The glass tube 21 of the light source bulb 2 is inserted from the insertion hole 45 of the reflector 4 to the reflective surface 46 side. The axis O1 of the light source bulb 2 intersects (substantially orthogonal) to the longitudinal axis O2 of the vehicle (see FIG. 4). As a result, in the light source bulb 2, the axis O1 of the light source bulb 2 has the inner lens 3 and the reflection surface 46 (excluding the reflection surface 46 of the inner portion 40 of the vehicle, that is, the rear portion 41 and the vehicle). It is arranged so as to be substantially parallel to the upper part 42 of the vehicle and the lower part 43) of the vehicle.

(Description of inner lens 3)
The inner lens 3 is attached to the lamp housing or the reflector 4 or the inner panel 7. The inner lens 3 has a shape in which the front portion 30 and the upper portion 31 of the vehicle are closed, and the rear portion and the lower portion of the vehicle are opened. The inner lens 3 includes closed portions 30 and 31 that are closed on one side and an opening 32 that is open on the other side.

  The closing portions 30 and 31 of the inner lens 3 close the opening 44 of the reflector 4. The closed portions 30 and 31 of the inner lens 3 have reflected light L1 from the reflecting surface 46 (see a two-dot chain line in FIG. 1) and direct light L2 from the light source bulb 2 (one point in FIG. 1). Diffusion means (such as a prism or a diffusing surface) for diffusing and irradiating the outside of the vehicle is provided.

(Description of the first shade 5 and the second shade 6)
The first shade 5 and the second shade 6 have an integral structure via a connecting portion 56 and are attached to the lamp housing or the reflector 4. The first shade 5 and the second shade 6 may be attached to the lamp housing or the reflector 4 as separate structures.

  The first shade 5 is disposed on the inner lens 3 side (front side) and above the light source bulb 2. The first shade 5 is composed of a quarter cylindrical portion and a horizontal plate portion. The second shade 6 is disposed on the inner lens 3 side (front side) and below the light source bulb 2. The second shade 6 has a cylindrical shape of about 1/8.

  An opening 65 is provided at a location between the first shade 5 and the second shade 6 and corresponding to the glass tube 21 of the light source bulb 2. The opening 65 transmits the direct light L2 from the light source bulb 2 to the inner lens 3 side. Direct light L2 from the light source bulb 2 that passes through the opening 65 is irradiated from the inner lens 3 to the outside of the vehicle in a substantially horizontal direction.

(Description of inner panel 7)
The inner panel 7 is composed of a light impermeable member. The inner panel 7 is attached to the lamp housing or the reflector 4 and is disposed on the light irradiation side (front side) of the inner lens 3. The inner panel 7 covers the back side of the vehicular lamp 1 when viewed from the outside of the vehicle.

  The inner panel 7 allows the light L1 and L2 emitted from the inner lens 3 to pass therethrough and the design light emitting surface of the inner lens 3 (refer to the surface surrounded by a thick broken line in FIG. 3) 71. An opening 70 is formed.

(Description of the operation of the embodiment)
The vehicular lamp 1 in this embodiment is configured as described above, and the operation thereof will be described below.

  The filament 20 of the light source bulb 2 is turned on. Then, the light L 1, L 2, L 3, L 4 emitted from the filament 20 of the light source bulb 2 passes through the glass tube 21. A part L1 of the light transmitted through the glass tube 21 enters the reflecting surface 46 of the reflector 4 from the rear side of the first shade 5 and the second shade 6. The light L1 incident on the reflecting surface 46 is reflected several times (three times in the example of FIG. 1) and reaches the inner lens 3. The reflected light L1 that reaches the inner lens 3 several times (three times in the example of FIG. 1) is transmitted through the inner lens 3 and diffused to be irradiated to the outside.

  Further, a part L2 of the light transmitted through the glass tube bulb 21 reaches the inner lens 3 as direct light from the opening 65 between the first shade 5 and the second shade 6. The direct light L2 that has reached the inner lens 3 is diffused through the inner lens 3 and irradiated to the outside in a substantially horizontal direction.

  As a result, the reflected light L1 and the direct light L2 several times (three times in the example of FIG. 1) are the light distribution pattern of the turn signal lamp of the front combination lamp, the light distribution pattern of the clearance lamp, and the light distribution of the daytime running lamp. The pattern is irradiated from the inner lens 3 to the outside as a pattern.

  Further, of the remaining light transmitted through the glass tube bulb 21, the light L <b> 3 transmitted to the front side and the upper side (front side obliquely upper side) of the light source bulb 2 is shielded by the first shade 5. Further, of the remaining light transmitted through the glass tube 21, the light L 4 transmitted to the front side and the lower side (front obliquely lower side) of the light source bulb 2 is shielded by the second shade 6.

(Explanation of effect of embodiment)
The vehicular lamp 1 according to this embodiment has the above-described configuration and operation, and the effects thereof will be described below.

  In the vehicle lamp 1 in this embodiment, the light L4 from the light source bulb 2 is reflected by the second shade 6 on the front and lower (front side obliquely lower) reflecting surface 46 of the reflector 4 below the vehicle of the reflector 4. Since the incident on the reflecting surface 46) of the side portion 43 can be shielded, even when viewed through the inner lens 3 from the upper side of the vehicular lamp 1, no flashing can be seen.

  That is, like the vehicular lamp 100 shown in FIG. 2, when the second shade 6 of the vehicular lamp 1 in this embodiment is not provided, the light L4 from the light source bulb 2 is on the front side and lower side of the light source bulb 2. The light enters the reflecting surface 46 (the front obliquely lower side) (the reflecting surface 46 of the lower portion 43 of the vehicle of the reflector 4) and is reflected once by the reflecting surface 46 to reach the inner lens 3. For this reason, when viewed through the inner lens 3 from above the vehicular lamp 100, the one-time reflected light L41 emitted from the inner lens 3 enters the human eye EP and appears to be lit up.

  On the other hand, the vehicular lamp 1 according to this embodiment shields the light L4 from the light source bulb 2 from being incident on the reflection surface 46 on the front side and the lower side of the light source bulb 2 by the second shade 6. Can do. Thereby, it is possible to prevent the one-time reflected light L41 (see the broken line arrow in FIG. 1) from entering the human eye EP and appearing in a spotted state. That is, even when viewed from above the vehicular lamp 1 through the inner lens 3, no flashing is seen.

  In the vehicle lamp 1 according to this embodiment, the first shade 5 blocks the light L3 from the light source bulb 2 from entering the inner lens 3 on the front side and on the upper side (front obliquely upper side) of the light source bulb 2. Therefore, it is possible to eliminate the problem that the light source bulb 2 is seen in a lit state through the inner lens 3 and improve the appearance.

  That is, when the first shade 5 of the vehicle lamp 1 in this embodiment is not provided as in the vehicle lamp 100 shown in FIG. 2, the light L3 from the light source bulb 2 is forward and above the light source bulb 2 ( The incident light is incident on the inner lens 3 on the front obliquely upper side. For this reason, there is a problem that the light source bulb 2 is seen in a lit state through the inner lens 3.

  On the other hand, the vehicular lamp 1 in this embodiment can block the light L3 from the light source bulb 2 from entering the inner lens 3 by the first shade 5. Thereby, it is possible to prevent the light L3 (see the broken line arrow in FIG. 1) from the light source bulb 2 from entering the human eye EP. That is, it is possible to eliminate the problem that the light source bulb 2 is seen in a lit state through the inner lens 3 and improve the appearance.

  In the vehicular lamp 1 in this embodiment, the axis O1 of the light source bulb 2 excludes the inner lens 3 and the reflection surface 46 (the reflection surface 46 of the vehicle inner portion 40 of the reflector 4), that is, the rear portion 41 of the vehicle. And the vehicle upper portion 42 and the vehicle lower portion 43) are substantially parallel to each other. As a result, the light from the light source bulb 2 can be effectively used on the three reflecting surfaces 46 of the rear portion 41 of the reflector 4, the upper portion 42 of the vehicle, and the lower portion 43 of the vehicle, Light distribution efficiency is improved.

  In the vehicle lamp 1 in this embodiment, an inner panel 7 of a light-impermeable member is disposed on the light irradiation side of the inner lens 3, and light irradiated from the inner lens 3 passes through the inner panel 7. Thus, an opening 70 for forming the design light emitting surface 71 of the inner lens 3 is provided. As a result, the design light-emitting surface 71 appears to emit light in the design shape due to the synergistic effect with the elimination of the above-described spotlight, and the design effect can be improved.

(Description of example other than embodiment)
In the above-described embodiment, a turn signal lamp, a clearance lamp, a daytime running lamp, and the like of the front combination lamp will be described. However, the present invention can also be applied to vehicle lamps other than turn signal lamps, clearance lamps and daytime running lamps of front combination lamps, for example, turn signal lamps and clearance lamps of rear combination lamps.

  Moreover, in the said embodiment, the axis | shaft O1 of the light source bulb 2 cross | intersects (substantially orthogonal) with respect to the vehicle longitudinal axis O2. That is, the light source bulb 2 is inserted so as to intersect (substantially orthogonal) the longitudinal axis O2 of the vehicle. However, in the present invention, the axis O1 of the light source bulb 2 may cross obliquely with respect to the longitudinal axis O2 of the vehicle. That is, the light source bulb 2 may be inserted obliquely with respect to the longitudinal axis O2 of the vehicle.

DESCRIPTION OF SYMBOLS 1,100 Vehicle lamp 2 Light source bulb 20 Filament 21 Glass tube 22 Socket 23 Harness 3 Inner lens 30 Front part of vehicle 31 Upper part of vehicle 32 Opening part 4 Reflector 40 Inner part of vehicle 41 Rear side of vehicle Portion 42 Vehicle upper portion 43 Vehicle lower portion 44 Opening portion 45 Insertion hole 46 Reflecting surface 5 First shade 56 Connecting portion 6 Second shade 65 Opening portion 7 Inner panel 70 Opening portion 71 Design light emitting surface EP Eyes L1 reflected light (light) several times
L2 Direct light (light)
L3 light L4 light L41 One-time reflected light (light)
O1 Light source bulb axis O2 Vehicle longitudinal axis

Claims (3)

A light source bulb,
A lens,
A reflector having a reflecting surface for reflecting light from the light source bulb to the lens side;
A first shade disposed on the lens side and above the light source bulb;
A second shade disposed on the lens side and below the light source bulb;
A vehicular lamp characterized by comprising: The light source bulb is arranged such that the axis of the light source bulb is substantially parallel to the lens and the reflecting surface.
The vehicular lamp according to claim 1. A light impervious member is disposed on the light irradiation side of the lens,
The light-impermeable member is provided with an opening that allows a light emitted from the lens to pass therethrough and forms a design light emitting surface of the lens.
The vehicular lamp according to claim 1 or 2.

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