JP5273537B2 - Vehicle lighting - Google Patents

Description

  The present invention relates to a vehicular lamp using a light-shielding hood, and more particularly to a vehicular lamp that can be made thinner than before.

  Conventionally, in order to prevent glare caused by direct light from a bulb, a vehicular lamp using a light shielding hood that covers the bulb is known (see, for example, Patent Document 1).

  FIG. 10 is a diagram for explaining a configuration example of a vehicular lamp using a conventional light shielding hood.

  As shown in FIG. 10, a vehicular lamp 200 using a conventional light-shielding hood has a lamp chamber 210 defined by a cylindrical inner wall extending in the vehicle front-rear direction, a valve 220 disposed in the lamp chamber 210, and a valve 220. In order to prevent glare caused by direct light from the reflector 230 and the valve 220 for reflecting the irradiation light irradiated toward the rear of the vehicle from the front of the vehicle and forming a predetermined light distribution pattern by the reflected light. A light shielding hood 240 having a cylindrical hood main body 241 covering 220 is provided.

By the way, in recent years, in the field of vehicular lamps, a thin vehicular lamp has been demanded from the viewpoint of increasing the degree of freedom in vehicle design.
JP 11-260114 A

  However, in the vehicular lamp 200 described in Patent Document 1, as shown in FIG. 10, in order to screw the light shielding hood 240, the reflector 230 must be provided with a screwing portion 231, There is a problem that it cannot be thinned.

  This invention is made | formed in view of such a situation, and it aims at providing a vehicle lamp thinner than before.

In order to solve the above-described problem, the invention according to claim 1 is provided with a valve, a cylindrical reflector main body extending in the vehicle front-rear direction, and a vehicle rear side of the reflector main body, from the valve toward the vehicle rear. A reflector including a reflecting surface for reflecting the irradiated light toward the front of the vehicle and forming a predetermined light distribution pattern by the reflected light; and a cover lens provided on the front side of the reflector body of the vehicle The surface of the light chamber is fixed at a predetermined mounting position defined by the reflector body, the reflection surface and the cover lens to form the bottom surface of the lamp chamber, and the surface is subjected to antireflection treatment. A light shielding member comprising: an antireflection member; and a hood body that covers the bulb in a state where the antireflection member is positioned and fixed at the predetermined mounting position. And a reflection preventing member with over de, the valve is disposed in the lamp chamber, to the lower of the lower and the reflective surface of the cover lens are grooves respectively formed, the reflection preventing member Has a vehicle front side end and a vehicle rear side end, the vehicle front side end is inserted into a groove formed below the cover lens, and the vehicle rear side end is the reflection surface. by being inserted into a groove formed downwardly, it characterized that you have been positioned and fixed between the reflector and the cover lens.

  According to the first aspect of the present invention, the antireflection member with the light shielding hood includes the antireflection member and the hood body. Therefore, according to the first aspect of the present invention, the anti-reflection member is positioned and fixed at a predetermined mounting position without screwing the hood main body to the screw fixing portion as in the prior art. Can be disposed at a position covering the valve. For this reason, the conventional screwing part can be omitted.

  For this reason, according to the invention described in claim 1, it is possible to omit a conventional installation space for the screwing portion. This makes it possible to configure a vehicular lamp that is thinner in the vertical direction than in the past.

  In addition, according to the first aspect of the present invention, it is possible to omit the conventional screwing portion and to extend the reflection surface to the installation space. The luminous flux utilization efficiency can be improved by the extended reflecting surface.

  Further, according to the invention described in claim 1, by positioning and fixing the antireflection member at a predetermined mounting position, the original bottom surface of the lamp chamber is covered with the surface of the antireflection member without using a coating apparatus. It is possible to form a substantially bottom surface that has been subjected to the antireflection treatment (that is, the same effect as when the original bottom surface of the lamp chamber is painted).

  Therefore, according to the first aspect of the present invention, it is possible to configure a vehicular lamp that is thinner and deeper in the vertical direction than in the prior art, without being subjected to painting restrictions such as the blowing angle of the painting apparatus. .

  According to the first aspect of the present invention, the original bottom surface of the lamp chamber is covered with the surface of the antireflection member, and a substantially bottom surface subjected to the antireflection treatment is formed (that is, the lamp chamber). It will have the same effect as painting the original bottom).

  Therefore, according to the first aspect of the present invention, the irradiation light from the bulb that is irradiated from the front side of the hood body toward the bottom surface of the lamp chamber (or the irradiation light from the rear side of the hood body, and the reflection surface) The irradiation light from the bulb that arrives and is reflected by the reflecting surface toward the bottom surface of the lamp chamber) is hardly reflected even if it reaches the surface of the antireflection member. For this reason, it becomes possible to prevent the glare light resulting from the reflected light from the reflecting surface being reflected by the original bottom surface of the lamp chamber.

  According to a second aspect of the present invention, in the first aspect of the present invention, the antireflection member with a light shielding hood includes a reflective surface for overhead light distribution.

  According to the invention described in claim 2, the antireflection member with the light shielding hood includes the overhead light distribution reflecting surface. For this reason, according to the second aspect of the present invention, it is possible to arrange the overhead light distribution reflecting surface at an appropriate position simply by positioning and fixing the antireflection member at a predetermined mounting position.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide a vehicle lamp thinner than before.

  Hereinafter, a vehicular lamp that is an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a front view of a vehicular lamp that is an embodiment of the present invention. FIG. 2 is a cross-sectional view of the vehicular lamp shown in FIG. FIG. 3 is a component configuration diagram of the vehicular lamp illustrated in FIGS. 1 and 2.

  A vehicular lamp 100 according to the present embodiment is applied to a vehicular lamp such as a fog lamp or a headlamp of a vehicle such as an automobile. As shown in FIGS. 1 to 3, the reflector 10, the cover lens 20, and the bulb are used. 30 and an antireflection member 40 with a light shielding hood.

  As shown in FIGS. 1 to 3, the reflector 10 includes a cylindrical reflector main body 11 (also referred to as a standing wall) that extends in the vehicle front-rear direction and a reflecting surface 12. The reflective surface 12 is integrally formed on the vehicle rear side of the reflector body 11, for example.

  The reflecting surface 12 reflects the light emitted from the bulb 30 irradiated toward the rear of the vehicle without being blocked by the light shielding hood 42 toward the front of the vehicle, and a reflecting surface for forming a predetermined light distribution pattern by the reflected light. For example, the focal point is a rotating paraboloid set near the light emitting unit 31 of the bulb 30. A cover lens 20 is fixed to the front end of the reflector body 11 with an adhesive G as shown in FIG. This bonded portion is covered with, for example, a sealing agent S. Thereby, as shown in FIG. 2, a lamp chamber 13 defined by the reflector main body 11, the reflecting surface 12, and the cover lens 20 is configured. Note that an opening 12a into which the bulb 30 is inserted is formed in a portion on the optical axis AX extending in the vehicle front-rear direction of the reflecting surface 12.

  The bulb 30 is a bulb light source such as an incandescent bulb, a halogen lamp, or an HID, and is inserted into the opening 12a (and the hood main body 42a) formed in the reflecting surface 12 as shown in FIG. In this state, it is fixed to the reflector 10 (reflection surface 12) by a known fixing means.

  As shown in FIGS. 1 to 3, the antireflection member 40 with the light shielding hood includes an antireflection member 41 and a light shielding hood 42. In FIG. 1, the light shielding hood 42 of the antireflection member 40 with the light shielding hood is omitted.

  For example, as shown in FIG. 1, the antireflection member 41 is a plate member that is curved along the bottom surface 13 a of the lamp chamber 13, and the surface 41 a is subjected to antireflection treatment such as black coating. In FIG. 3, the antireflection member 41 is depicted as a flat plate that is not curved.

  The antireflection member 41 is positioned and fixed at a predetermined mounting position in the lamp chamber 13 to form a substantial bottom surface in the lamp chamber 13. For example, as shown in FIG. 4, the antireflection member 41 has a vehicle front side end 41b inserted in a groove 20a formed below the cover lens 20, and a vehicle rear side end 41c as shown in FIG. Is inserted into a groove 12b formed below the reflecting surface 12, and is positioned and fixed between the reflector 10 (the reflecting surface 12) and the cover lens 20 (see FIG. 2). Accordingly, the original bottom surface 13a of the lamp chamber 13 is covered with the surface 41a of the antireflection member 41 without using a coating device, and a substantial bottom surface is formed (that is, the original bottom surface 13a of the lamp chamber 13 is painted (for example, black paint). It is possible to achieve the same effect as that). For this reason, it is possible to configure a vehicular lamp that is thinner and deeper in the vertical direction than before without being subjected to painting restrictions such as the blowing angle of the painting apparatus.

  In addition, as shown in FIG. 6, it is preferable to provide one or a plurality of protrusions 41b1 having a curved tip at the front end, which is press-fitted into the groove 20a of the cover lens 20, as shown in FIG. Similarly, it is preferable to provide one or a plurality of protrusions 41c1 having a curved tip at the rear end 41c, which is press-fitted into the groove 12a of the reflecting surface 12. If it does in this way, since antireflection member 41 will be supported by point by projection parts 41b1 and 41c1, it will become possible to control shakiness of antireflection member 41 mainly in the perpendicular direction. In addition, you may provide the protrusion part 41b1 or 41c1 in the groove part 20a of the cover lens 20, or the groove part 12a of the reflective surface 12, as shown in FIG. Also by this, it becomes possible to suppress the shakiness of the antireflection member 41 mainly in the vertical direction.

  As shown in FIGS. 2 and 3, the light shielding hood 42 includes a hood main body 42 a (also referred to as a hood top) and a support portion 42 b (also referred to as a hood stay). The hood main body 42a and the support portion 42b are integrally formed, for example, by pressing and bending a metal plate such as an aluminum plating plate. Alternatively, the hood main body 42a and the support portion 42b may be formed as separate bodies and fixed by welding or the like.

  As shown in FIG. 2, the hood main body 42a is a light shielding member for covering the valve 30 in a state where the antireflection member 41 is positioned and fixed at a predetermined mounting position, and the vehicle front-rear direction in which the valve 30 is inserted. Is formed in a cylindrical shape having a substantially circular cross section. The hood main body 42 a is fixed to the antireflection member 41 by, for example, welding the end portion 42 b 1 of the support portion 42 b to the surface 41 a of the antireflection member 41.

  As described above, according to the vehicular lamp 100 of the present embodiment, the antireflection member 40 with the light shielding hood includes the antireflection member 41 and the hood body 42a (see FIGS. 2 and 3). Therefore, according to the vehicular lamp 100 of the present embodiment, the antireflection member 41 is only positioned and fixed at a predetermined mounting position without screwing the hood body 42a to the screwing portion 43 as in the prior art. Thus, as shown in FIG. 2, the hood main body 42 a can be disposed at a position covering the valve 30. For this reason, the conventional screwing part 43 (refer FIG. 2) can be abbreviate | omitted.

  For this reason, according to the vehicular lamp 100 of the present embodiment, it is possible to omit the installation space SP (see FIG. 2) of the conventional screwing portion 43. This makes it possible to configure a vehicular lamp that is thinner in the vertical direction than in the past (see, for example, FIG. 8).

  Further, according to the vehicular lamp 100 of the present embodiment, the conventional screwing portion 43 can be omitted, and the reflecting surface 12 can be expanded to the installation space SP. The luminous flux utilization efficiency can be improved by the extended reflecting surface 12.

  Further, according to the vehicular lamp 100 of the present embodiment, the anti-reflection member 41 is positioned and fixed at a predetermined mounting position, so that the original bottom surface 13a of the lamp chamber 13 is not reflected by the coating apparatus, and the anti-reflection member 41 is used. It is possible to form a substantially bottom surface that is covered with the surface 41a and is subjected to an antireflection treatment (that is, the same effect as when the original bottom surface 13a of the lamp chamber 13 is painted).

  For this reason, according to the vehicular lamp 100 of the present embodiment, it is possible to configure a vehicular lamp that is thinner and deeper in the vertical direction than before without being subjected to painting restrictions such as the blowing angle of the painting apparatus. Become.

  Moreover, according to the vehicular lamp 100 of the present embodiment, the original bottom surface 13a of the lamp chamber 13 is covered with the surface 41a of the antireflection member 41 to form a substantially bottom surface subjected to the antireflection treatment ( That is, the same effect as when the original bottom surface 13a of the lamp chamber 13 is painted is obtained.

  For this reason, according to the vehicular lamp 100 of the present embodiment, the irradiation light from the bulb 30 irradiated from the front side of the hood main body 42a toward the bottom surface 13a of the lamp chamber 13 (or from the rear side of the hood main body 42a). Even if the irradiated light from the bulb 30 that is irradiated and reaches the reflecting surface 12 and is reflected by the reflecting surface 12 toward the bottom surface 13a of the lamp chamber 13) reaches the surface 41a of the antireflection member 41, Almost no reflection. For this reason, it becomes possible to prevent the glare light resulting from the reflected light from the reflecting surface 12 being reflected by the original bottom surface 13a of the lamp chamber 13.

  Next, a modified example will be described.

  FIG. 8 is a diagram for explaining a modification of the vehicular lamp 100 according to the embodiment.

  In the above embodiment, the reflector body 11 has been described as having a cylindrical shape with a substantially elliptical cross section extending in the vehicle longitudinal direction, but the present invention is not limited to this. For example, as shown in FIG. 8, the reflector main body 11 may have a cylindrical shape with a substantially rectangular cross section extending in the vehicle front-rear direction, or a cylindrical shape with other cross sections.

  In the above embodiment, the antireflection member 41 is described as a plate member curved along the bottom surface 13a of the lamp chamber 13 (see FIG. 1), but the present invention is not limited to this. For example, as shown in FIG. 8, the antireflection member 41 may be a flat plate member along the bottom surface 13 a of the lamp chamber 13.

  In the above embodiment, the hood main body 42a has been described as being fixed by welding the end portion 42b1 of the support portion 42b to the surface 41a of the antireflection member 41, but the present invention is not limited to this. For example, as shown in FIG. 8, the hood main body 42 a may be formed integrally with the antireflection member 41 by bending or drawing a part of the antireflection member 41.

  In the above embodiment, the hood main body 42a has a cylindrical shape with a substantially circular cross section extending in the vehicle front-rear direction in which the valve 30 is inserted, and the front side of the vehicle is opened (see FIG. 2 and the like). However, the hood body 42a can take various forms in relation to vehicle design or the like (for example, reflector design). For example, as shown in FIG. 8, the hood main body 42a may have a cylindrical shape with a substantially polygonal cross section, or the vehicle front side may be closed.

  Moreover, as shown in FIG. 8, you may provide the reflection surface 44 for overhead light distribution in the reflection preventing member 41 (for example, vehicle rear side edge part 41c). The overhead light distribution reflecting surface 44 can be integrally formed by bending a part of the antireflection member 41, for example. Alternatively, the antireflection member 40 with the light shielding hood and the overhead light distribution reflecting surface 44 may be formed separately and fixed by welding or the like.

  In this way, the overhead light distribution reflecting surface 44 can be disposed at a predetermined position simply by positioning and fixing the antireflection member 41 at a predetermined mounting position. It is also possible to improve the luminous flux utilization efficiency.

  Moreover, in the said embodiment, as shown in FIG. 4, as for the reflection preventing member 41, the vehicle front side edge part 41b is inserted in the groove part 20a formed under the cover lens 20, and as shown in FIG. Although the rear side end 41c is inserted into the groove 12b formed below the reflecting surface 12, it has been described as being positioned and fixed between the reflector 10 (the reflecting surface 12) and the cover lens 20. Is not limited to this.

  For example, as shown in FIG. 9, the antireflection member 41 bends the vehicle front side end 41b downward, and the vehicle front side end 41b is sandwiched between the reflector 10 and the cover lens 20, as shown in FIG. As described above, the rear end 41c of the vehicle may be inserted into the groove 12b formed below the reflecting surface 12, so that the positioning and fixing may be performed between the reflector 10 (the reflecting surface 12) and the cover lens 20.

  The above embodiment is merely an example in all respects. The present invention is not construed as being limited to these descriptions. The present invention can be implemented in various other forms without departing from the spirit or main features thereof.

It is a front view of the vehicular lamp which is one embodiment of the present invention. It is AA sectional drawing of the vehicle lamp shown in FIG. It is a component block diagram of the vehicle lamp shown in FIG. 1, FIG. 2 is a structural example for holding an antireflection member 41. FIG. 2 is a structural example for holding an antireflection member 41. FIG. 2 is a structural example for holding an antireflection member 41. FIG. 2 is a structural example for holding an antireflection member 41. FIG. It is a figure for demonstrating the modification of the vehicle lamp which is one Embodiment of this invention. It is a figure for demonstrating the modification of the vehicle lamp which is one Embodiment of this invention. It is a figure for demonstrating the structural example of the vehicle lamp using the conventional light-shielding hood.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Vehicle lamp, 10 ... Reflector, 11 ... Reflector main body, 12 ... Reflecting surface, 12a ... Opening, 12b ... Groove part, 13 ... Light chamber, 13a ... Bottom surface, 20 ... Cover lens, 20a ... Groove part, 30 ... Bulb, DESCRIPTION OF SYMBOLS 31 ... Light emission part, 40 ... Antireflection member with light shielding hood, 41 ... Antireflection member, 41a ... Surface, 41b ... Vehicle front side edge part, 41c ... Vehicle rear side edge part, 42 ... Light shielding hood, 42a ... Hood main body, 42b ... support part, 42b1 ... end part, 43 ... screw fixing part, 44 ... reflecting surface for overhead light distribution, AX ... optical axis, G ... adhesive, S ... sealant

Claims (2)

A valve,
A cylindrical reflector body extending in the vehicle front-rear direction, and provided on the vehicle rear side of the reflector body, the irradiation light emitted from the valve toward the vehicle rear is reflected toward the vehicle front, and the reflected light determines a predetermined value. A reflector comprising: a reflecting surface for forming a light distribution pattern;
A cover lens provided on the vehicle front side of the reflector body;
Reflection with antireflection treatment on the surface, which forms the bottom surface of the lamp chamber by being positioned and fixed at a predetermined mounting position in the lamp chamber defined by the reflector body, the reflection surface and the cover lens An anti-reflective member with a light-shielding hood, including a preventive member, and a hood main body that covers the bulb in a state where the anti-reflective member is positioned and fixed at the predetermined attachment position ,
The bulb is disposed in the lamp chamber;
Grooves are respectively formed below the cover lens and below the reflecting surface,
The antireflection member has a vehicle front side end portion and a vehicle rear side end portion, the vehicle front side end portion is inserted into a groove portion formed below the cover lens, and the vehicle rear side end portion is wherein by being inserted into a groove formed below the reflecting surface, the vehicle lamp characterized that you have been positioned and fixed between the reflector and the cover lens.   The vehicular lamp according to claim 1, wherein the antireflection member with a light shielding hood includes a reflective surface for overhead light distribution.

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