JP2019057441A - Vehicular headlight - Google Patents

Abstract

To provide a vehicular headlight capable of developing good design property while suppressing a change in the light distribution.SOLUTION: A vehicular headlight 1 includes a first lighting tool unit 20 and a second lighting tool unit 40 having respective light sources 23A, 23B, 23C, 43A, 43B and reflector units 21, 41. Reflector bodies 21A, 41A formed of resin have support part bodies 24A, 44A and reflection part bodies 25A, 45A. The reflector units 21, 41 are formed with emission ports 30, 50. The first lighting tool unit 20 and the second lighting tool unit 40 are arranged side by side so that a left opening 30B and a right opening 50B of the emission ports 30, 50 oppose each other. The reflector body 21A has a first rib 60 and a second rib 61, and a diameter D2 of a second inscribed circle C2 inscribed in the cross-section outer shape of the second rib 61 is larger than a diameter D1 of a first inscribed circle C1 inscribed in the cross-section outer shape of the first rib 60.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a vehicular headlamp, and more particularly to a vehicular headlamp that can improve design.

  2. Description of the Related Art As vehicle headlamps represented by automobile headlights and the like, there are known vehicle headlights including a high beam light source that illuminates far away from the low beam in addition to a low beam light source that illuminates the front at night. Also known is a vehicle headlamp in which a low beam reflector unit that reflects light emitted from a low beam light source and a high beam reflector unit that reflects light emitted from a high beam light source are arranged side by side. Yes.

  For example, Patent Document 1 discloses a low-beam reflector unit in which an exit opening that covers the periphery of a low-beam light source and opens forward, and an exit opening that covers the periphery of the high-beam light source and opens forward. There is disclosed a vehicle headlamp including a formed high beam reflector unit. The low-beam reflector unit and the high-beam reflector unit in Patent Document 1 are arranged side by side in the vehicle width direction with their side surfaces in contact with each other. In such a vehicle headlamp, the light emitted from the low beam light source is emitted from the emission port of the low beam reflector unit, and the light emitted from the high beam light source is emitted from the emission port of the high beam reflector unit.

JP 2015-46235 A

  When the low beam reflector unit and the high beam reflector unit are arranged side by side as in the vehicle headlamp described in Patent Document 1, the vehicle headlamp is used when the low beam or the high beam is irradiated. There is a demand for improving the design properties by making the whole emit light. In other words, when the low beam is irradiated, the high beam reflector unit side of the vehicle headlamp is also brightened, and when the high beam is irradiated, the low beam reflector unit side of the vehicle headlamp is also brightened. There is a request.

  In response to this requirement, a part of the light emitted from the low beam light source enters the internal space of the high beam reflector unit, and a part of the light emitted from the high beam light source enters the internal space of the low beam reflector unit. It is possible to make it incident. As such a configuration, a side portion of the low beam reflector unit on the high beam reflector unit side is cut out, and a side portion of the high beam reflector unit on the low beam reflector unit side is cut out. That is, the configuration is such that the exit of the low beam reflector unit opens from the front to the side of the high beam reflector unit, and the exit of the high beam reflector unit opens from the front to the side of the low beam reflector unit. It is. However, with such a configuration, the strength of the low beam reflector unit and the high beam reflector unit in the vicinity of the side portions of the respective emission ports formed by notching the side portions is likely to decrease. For this reason, there is a concern that the vicinity of the exit of the low beam reflector unit and the high beam reflector unit may be deformed by the heat of the low beam light source or the high beam light source, and the light distribution of at least one of the low beam and the high beam changes. There is a risk of doing.

  Then, an object of this invention is to provide the vehicle headlamp which can make the designability favorable, suppressing the change of light distribution.

  In order to achieve the above object, a vehicle headlamp according to the present invention includes a first lamp unit and a second lamp having a light source, and a reflector unit including a reflector body made of resin and a reflective film, respectively. The reflector body includes a plate-like support part body that extends in the front-rear direction and to which the light source is attached; and is connected to the support part body on the rear side of the light source and the support part body A plate-like reflector main body extending toward the front at a predetermined angle, and the reflective film is provided on at least a surface of the reflector main body on the side of the support main body, Each of the reflector units of the one lamp unit and the second lamp unit is formed with an emission port that opens in a specific direction different from the front to the front, and the first lamp unit and the second lamp unit. The fixture units are arranged side by side so that portions of the outlets of the reflector units that open in the specific direction face each other, and the reflector main body and the second lamp unit of the first lamp unit. At least one of the reflector main bodies extends along a front edge of the support section main body and protrudes from the support section main body to the opposite side of the reflection section main body; and the reflection section main body And a second rib extending along the edge in the specific direction and projecting from the reflecting portion main body to the opposite side of the supporting portion main body, and perpendicular to the extending direction of the second rib The diameter of the second inscribed circle inscribed in the outer shape of the second rib in the cross section is larger than the diameter of the first inscribed circle inscribed in the outer shape of the first rib in the cross section perpendicular to the extending direction of the first rib. Is also considered to be great The features.

  In the vehicle headlamp according to the present invention, the first lamp unit and the second lamp unit are arranged side by side so that the portions opened in a specific direction different from the front face each other. For this reason, a part of the light emitted from the light source of the first lamp unit passes through each of the exit openings of the reflector unit of the first lamp unit and the second lamp unit and opens in a specific direction. It can enter into the internal space of the reflector unit of the lamp unit. Therefore, when light is emitted from the light source of the first lamp unit, the second lamp unit is also brightened, and the vehicle headlamp can emit light as a whole. In addition, a part of the light emitted from the light source of the second lamp unit passes through each of the exit openings of the second lamp unit and the reflector unit of the first lamp unit in a specific direction, and passes through the first lamp. It can enter the internal space of the reflector unit of the unit. For this reason, when light radiates | emits from the light source of a 2nd lamp unit, a 1st lamp unit also becomes bright and the vehicle headlamp can light-emit entirely. Therefore, the vehicle headlamp of the present invention can improve the design. In addition, the specific direction different from the above-mentioned front is a direction perpendicular | vertical to the front, for example, and includes the left-right direction and the up-down direction. For this reason, the 1st lamp unit and the 2nd lamp unit are arrange | positioned along with the left-right direction or the up-down direction, for example.

  In addition, at least one of the reflector main body of the first lamp unit and the reflector main body of the second lamp unit includes a first rib extending along a front edge of the support body, and an edge in a specific direction of the reflector main body. And a second rib extending along the portion. For this reason, the reflector main body having the first rib and the second rib is suppressed from decreasing in strength in the vicinity of the emission port, and deformation due to heat of the light source or the like is suppressed.

  In addition, since the diameter of the second inscribed circle is larger than the diameter of the first inscribed circle, the reflector body having the first rib and the second rib has a strength in the reflecting section body that is higher than that of the support section body. Decrease is suppressed. Generally, the reflector unit is fixed to a housing or the like, and when the reflector main body expands due to heat from a light source or the like, the reflector main body tends to receive stress from the fixed portion. For this reason, by setting it as the said structure, this stress becomes easy to act on a support part main body rather than a reflection part main body, and a deformation | transformation of a reflection part main body is suppressed. By the way, in order to make the light distribution accurate, the shape of the reflector main body provided with the reflection film for reflecting the light emitted from the light source needs to be particularly precise. Therefore, the change in light distribution can be suppressed by adopting the above configuration. Thus, the vehicular headlamp according to the present invention can improve the design while suppressing changes in light distribution.

  The first lamp unit and the second lamp unit may be arranged side by side in the left-right direction.

  It is preferable that at least one of the first lamp unit and the second lamp unit is attached to the vehicle so as to be tiltable.

  The lamp unit configured as described above can perform optical axis adjustment.

  Preferably, the reflector body of the first lamp unit has the first rib and the second rib, and the light emitted from the first lamp unit is a low beam.

  Since the low beam has a cut-off line, the low beam requires more accurate light distribution than the high beam. Therefore, by adopting the above-described configuration, it is possible to improve the low beam irradiation that requires the accuracy of light distribution. In this case, the reflector body of the second lamp unit may also have the first rib and the second rib.

  The diameter of the first inscribed circle is preferably smaller than the plate thickness of the support body.

  By comprising in this way, at the time of shaping | molding of a reflector main body, it becomes easier to solidify from resin which comprises a 1st rib rather than resin which comprises a plate-shaped support part main body. For this reason, in the cross section perpendicular to the front-rear direction, stress is generated in the reflector body such that the support body is curved in a convex shape on the side opposite to the reflective body, and the support body is curved in a convex shape on the reflective body side. Can be suppressed. Therefore, the reflector main body having the above-described configuration can suppress productivity from being deteriorated, and the productivity can be improved.

  The second rib is provided at a connection portion between the support portion main body and the reflection portion main body, and the diameter of the second inscribed circle is parallel to the front-rear direction and the reflection portion main body is the thickness of the reflection portion main body. The diameter of the inscribed circle of the reflector main body that overlaps a part of the connection portion and a part of the outer shape of the support portion main body and a portion of the outer shape of the reflection portion main body is overlapped with a part of the connection portion in a cross section transverse to the direction. It is preferable.

  By configuring in this way, when forming the reflector body, the connection between the support body and the reflector body rather than the resin constituting the portion provided at the connection portion between the support body and the reflector body in the second rib. It becomes easy to be solidified from the resin constituting the part. For this reason, stress is generated in the reflector main body so that the reflecting portion main body is tilted to the opposite side of the supporting portion main body with the connection portion as a fulcrum, and the reflecting portion main body may be deformed so as to fall toward the supporting portion main body. Can be suppressed. Therefore, the reflector main body having the above-described configuration can suppress productivity from being deteriorated, and the productivity can be improved.

  As described above, according to the present invention, it is possible to provide a vehicular headlamp that can improve design while suppressing a change in light distribution.

It is a figure which shows an example of the vehicle by which the vehicle headlamp in 1st Embodiment of this invention is mounted. It is a figure which shows roughly the cross section of the horizontal direction of the vehicle headlamp. It is a figure which shows roughly the cross section of the perpendicular direction of a 1st lamp unit. It is a figure which shows roughly the cross section of the perpendicular direction of a 2nd lamp unit. It is a perspective view which shows the structure of a 1st lamp unit and a 2nd lamp unit. It is a figure which shows roughly the cross section perpendicular | vertical to the extension direction of a 1st rib. It is a figure which shows roughly the cross section perpendicular | vertical to the extension direction of a 2nd rib. It is a figure which shows roughly the cross section of the perpendicular direction of a connection part.

  EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing the vehicle headlamp which concerns on this invention is illustrated with an accompanying drawing. The embodiments exemplified below are intended to facilitate understanding of the present invention, and are not intended to limit the present invention. The present invention can be modified and improved from the following embodiments without departing from the spirit of the present invention.

(First embodiment)
FIG. 1 is a diagram illustrating an example of a vehicle on which a vehicle headlamp according to the present embodiment is mounted, as viewed from the front side. As shown in FIG. 1, the vehicle headlamp 1 of this embodiment is provided one each in the left-right direction in the front of the vehicle VE. Each vehicle headlamp 1 is exposed to the outside of the vehicle VE and emits light toward the front of the vehicle VE. Each of the vehicle headlamps 1 includes a housing 10, a first lamp unit 20 that emits a low beam, and a second lamp unit 40 that emits a high beam as main components. In this embodiment, the 1st lamp unit 20 and the 2nd lamp unit 40 are located in a line with the left-right direction, and the 1st lamp unit 20 is arrange | positioned rather than the 2nd lamp unit 40 on the outer side of the vehicle VE. The left and right vehicle headlamps 1 are symmetrical to each other in the left-right direction. Hereinafter, the vehicle headlamp 1 located on the right side as viewed from the driver and on the left side in FIG. 1 will be described, and the description on the vehicle headlamp 1 located on the right side in FIG. 1 will be omitted.

  FIG. 2 is a diagram schematically showing a horizontal section of the vehicular headlamp 1. As shown in FIG. 2, the housing 10 in the present embodiment includes a lamp housing 11 and a front cover 12 as main components. An opening that opens forward is formed in the front portion of the lamp housing 11, and a light-transmitting front cover 12 is attached to the lamp housing 11 so as to close the opening. A first lamp unit 20 and a second lamp unit 40 are accommodated in an internal space of the housing 10 that is a space surrounded by the lamp housing 11 and the front cover 12. The lamp housing 11 is fixed to the vehicle VE by means (not shown).

  As shown in FIG. 2, the first lamp unit 20 in the present embodiment includes a reflector unit 21 and three light sources 23A, 23B, and 23C as main components, and the first lamp unit 20 includes three lamps. 20A, 20B, 20C are provided side by side in the left-right direction.

  FIG. 3 is a view schematically showing a vertical section of the first lamp unit 20 passing through the light source 23A. As shown in FIGS. 2 and 3, the reflector unit 21 of the first lamp unit 20 in the present embodiment includes a support portion 24 and a reflection portion 25. The support portion 24 in the present embodiment is formed by providing a reflective film 31 by metal deposition or the like on the lower surface of the support portion main body 24A which is a plate-like member extending in the front-rear direction. The reflecting portion 25 is formed by providing a reflecting film 32 by metal vapor deposition or the like on the upper surface of the reflecting portion main body 25A which is a plate-like member extending in the front-rear direction. The reflection part 25 is disposed below the support part 24 so that the reflection film 32 faces the reflection film 31 of the support part 24. The rear portion of the reflecting portion 25 is curved upward, and the rear edge portion is connected to the rear edge portion of the support portion 24. In other words, the reflecting portion 25 has a rear edge connected to the rear edge of the support portion 24, and has a predetermined angle with the support portion 24 and extends below the support portion 24 toward the front. ing. Thus, the front edge part of the reflection part 25 extending toward the front is located in front of the front edge part of the support part 24 in this embodiment. Further, in the reflecting portion 25 of the present embodiment, the right side (left side in FIG. 2) as viewed from the driver is curved upward, and the right edge is connected to the right edge of the support 24. ing. That is, the reflection part 25 has a side wall part 25 </ b> B that extends in the vertical direction on the right side and is connected to the support part 24.

  As shown in FIG. 2, the reflecting portion 25 is provided with two ribs 27 </ b> A and 27 </ b> B that protrude toward the support portion 24 and extend in the front-rear direction with a predetermined interval in the left-right direction. As shown in FIG. 3, the protruding height of the rib 27 </ b> A increases rearward, and the rear end portion of the rib 27 </ b> A is connected to the support portion 24. Although not particularly illustrated, the protrusion height of the rib 27B increases rearward, and the rear end portion of the rib 27B is connected to the support portion 24. The reflector unit 21 of the present embodiment is divided into three parts arranged in the left-right direction by the two ribs 27A, 27B, and the light sources 23A, 23B, 23C are arranged in the divided parts, respectively. The lamp unit 20 is provided with three lamps 20A, 20B, and 20C. Such a lamp 20 </ b> A includes a light source 23 </ b> A and a support portion 24 and a reflection portion 25 in a portion on the left side of the rib 27 </ b> A of the reflector unit 21. The lamp 20B includes a light source 23B and a support portion 24 and a reflection portion 25 at a portion between the rib 27A and the rib 27B of the reflector unit 21. The lamp 20 </ b> C includes a light source 23 </ b> C and a support portion 24 and a reflection portion 25 in a portion on the right side of the rib 27 </ b> B of the reflector unit 21.

  The shape of the cross section in the horizontal direction at each portion corresponding to the lamps 20A, 20B, and 20C of the reflecting portion 25 shown in FIG. 2 is basically based on a shape including the apex of a parabola. Moreover, as shown in FIG. 3, the shape of the cross section of the vertical direction in the site | part corresponding to the lamp 20A of the reflection part 25 is based on the shape below the vertex in the case of making the central axis of a parabola horizontal in general. . Although not particularly illustrated, the shape of the cross section in the vertical direction at each portion corresponding to the lamps 20B and 20C of the reflecting portion 25 is also substantially lower than the apex when the central axis of the parabola is horizontal. It is based. The horizontal cross-sectional shape and the vertical cross-sectional shape of each part corresponding to the lamps 20A, 20B, and 20C of the reflector 25 do not have to be based on a parabola, for example, a part of an ellipse. It may be a basic shape or other concave shape.

  The light sources 23A, 23B, and 23C in the lamps 20A, 20B, and 20C are configured to include, for example, light emitting diodes (LEDs), respectively, and are disposed in the vicinity of the focal point of the parabola based on the shape of the cross section in the vertical direction of the reflector 25, respectively. The The light sources 23 </ b> A, 23 </ b> B, and 23 </ b> C of the present embodiment are each attached to the lower surface of the support portion 24. That is, the light sources 23A, 23B, and 23C are attached to the support portion main body 24A via the reflective film 31, respectively. The light sources 23A, 23B, and 23C may be inserted into through holes that penetrate the support portion 24 in the plate thickness direction and disposed at predetermined positions of the lamps 20A, 20B, and 20C. Such light sources 23 </ b> A, 23 </ b> B, and 23 </ b> C are located in front of the connection portion between the support portion 24 and the reflection portion 25, and face the reflection film 32 in the reflection portion 25. The light sources 23A, 23B, and 23C are connected to a circuit board (not shown), and can emit light by feeding from the circuit board. The light sources 23A, 23B, and 23C of the first lamp unit 20 may be connected to separate circuit boards, or may be connected to a single circuit board.

  As shown in FIGS. 2 and 3, two locking portions 26 </ b> A and 26 </ b> B are connected in the vicinity of the rear upper end portion of the reflecting portion 25, and the locking portion 26 </ b> C is near the lower end portion of the reflecting portion 25 in the rear side. Is connected. Each of the locking portions 26A, 26B, and 26C extends rearward from the reflecting portion 25, and each of the locking portions 26A, 26B, and 26C is formed with a screw hole that opens to the rear side. Yes. Shafts 29 </ b> A, 29 </ b> B, and 29 </ b> C that are respectively screwed into the lamp housing 11 are screwed into the screw holes, and the reflection portion 25 is attached to the lamp housing 11. By adjusting the screw engagement of the shafts 29A, 29B, and 29C with the lamp housing 11, the angle of the reflector unit 21 with respect to the lamp housing 11 can be finely adjusted vertically and horizontally. As described above, since the lamp housing 11 is fixed to the vehicle VE, the first lamp unit 20 is attached to the vehicle VE so as to be tiltable.

  The support portion main body 24A, the reflection portion main body 25A, and the locking portions 26A, 26B, and 26C of the present embodiment described above are made of resin, and are integrated with each other to form the reflector main body 21A. That is, the reflector main body 21A is made of resin, and includes the support portion main body 24A, the reflection portion main body 25A, and the locking portions 26A, 26B, and 26C. The reflector unit 21 includes the reflector main body 21A and the reflection films 31 and 32. It is comprised including. The reflector body 21A is formed by, for example, injection molding. Examples of the resin constituting the reflector body 21A include polyethylene, polycarbonate, polystyrene, ABS resin, acrylic, polyethylene terephthalate, polyacetal, and polyamide.

  As shown in FIG. 2, the second lamp unit 40 in the present embodiment includes a reflector unit 41 and two light sources 43A and 43B as main components, and the second lamp unit 40 includes two lamps 40A, 40B is provided side by side in the left-right direction.

  FIG. 4 is a diagram schematically showing a vertical section of the second lamp unit 40 passing through the light source 43B. As shown in FIGS. 2 and 4, the reflector unit 41 of the second lamp unit 40 of the present embodiment includes a support portion 44 and a reflection portion 45. The support part 44 and the reflection part 45 in this embodiment are the structures similar to the support part 24 and the reflection part 25 in the reflector unit 21 of the above-mentioned 1st lamp unit 20, respectively. The support portion 44 is formed by providing a reflective film 51 by metal vapor deposition or the like on the lower surface of a support portion main body 44A, which is a plate-like member extending in the front-rear direction. The reflection portion 45 is formed by providing a reflection film 52 by metal vapor deposition or the like on the upper surface of the reflection portion main body 45A which is a plate-like member extending in the front-rear direction. The reflection portion 45 has a rear edge connected to a rear edge of the support portion 44 and has a predetermined angle with the support portion 44 and extends forward under the support portion 44. . By the way, unlike the reflection part 25 of the reflector unit 21 described above, the reflection part 45 has a side part on the left side (right side in FIG. 2) as viewed from the driver that is curved upward, and an edge part on the left side is a support part. 44 is connected to the left edge of 44. That is, the reflection part 45 has a side wall part 45 </ b> B that extends in the vertical direction on the left side and is connected to the support part 44. Accordingly, the reflector unit 41 has a shape that is substantially symmetrical to the reflector unit 21 in the left-right direction.

  As shown in FIG. 2, the reflecting portion 45 is provided with a rib 47 that protrudes toward the support portion 44 and extends in the front-rear direction in the vicinity of the center of the reflecting portion 45 in the left-right direction. Further, as shown in FIG. 4, the protruding height of the rib 47 increases rearward, and the rear end portion of the rib 47 is connected to the support portion 44. The reflector unit 41 of the present embodiment is divided into two parts on the left and right by the rib 47, and light sources 43A and 43B are arranged at the divided parts, respectively, so that the second lamp unit 40 has two lamps 40A and 40A. 40B is provided. Such a lamp 40 </ b> A includes a light source 43 </ b> A and a support portion 44 and a reflection portion 45 in a portion on the right side of the rib 47 of the reflector unit 41. The lamp 40 </ b> B includes a light source 43 </ b> B and a support portion 44 and a reflection portion 45 in a portion on the left side of the rib 47 of the reflector unit 41.

  The lamps 40A and 40B in the present embodiment have the same configuration as the lamps 20A, 20B, and 20C described above. As shown in FIG. 2, the shape of the cross section in the horizontal direction at each portion corresponding to the lamps 40 </ b> A and 40 </ b> B of the reflecting portion 45 is based on a shape that generally includes the apex of a parabola. Further, as shown in FIG. 4, the shape of the cross section in the vertical direction in each portion corresponding to the lamps 40A and 40B of the reflecting portion 45 is generally lower than the apex when the central axis of the parabola is horizontal. Based on. The horizontal cross-sectional shape and the vertical cross-sectional shape of the reflector 45 do not have to be based on a parabola, for example, a shape based on a part of an ellipse or other concave shape. May be. The light sources 43A and 43B in the lamps 40A and 40B have the same configuration as the above-described light sources 23A, 23B, and 23C. For example, each of the light sources 43A and 43B includes a light-emitting diode. Placed near the focal point of the parabola. The light sources 43 </ b> A and 43 </ b> B of the present embodiment are respectively attached to the lower surface of the support portion 44. That is, the light sources 43A and 43B are attached to the support portion main body 44A via the reflective film 51, respectively. Such light sources 43 </ b> A and 43 </ b> B are positioned in front of the connection portion between the support portion 44 and the reflection portion 45, and face the reflection film 52 in the reflection portion 45. The light sources 43A and 43B are connected to a circuit board (not shown), and light can be emitted by feeding from the circuit board.

  As shown in FIGS. 2 and 4, two locking portions 46 </ b> A and 46 </ b> B are connected in the vicinity of the rear upper end portion of the reflecting portion 45, and the locking portion 46 </ b> C in the vicinity of the rear lower end portion of the reflecting portion 45. Is connected. The locking portions 46A, 46B, and 46C have the same configuration as the locking portions 26A, 26B, and 26C, respectively. Shafts 49 </ b> A, 49 </ b> B, and 49 </ b> C that are screwed into the lamp housing 11 are screwed into the screw holes of the locking portions 46 </ b> A, 46 </ b> B, and 46 </ b> C, respectively, and the reflecting portion 45 is attached to the lamp housing 11. In this way, the second lamp unit 40 is attached to the vehicle VE so as to be tiltable, similarly to the first lamp unit 20 described above.

  The support portion main body 44A, the reflection portion main body 45A, and the locking portions 46A, 46B, and 46C of the present embodiment described above are made of resin and formed integrally with each other to constitute the reflector main body 41A. . That is, the reflector main body 41A is made of resin, like the reflector main body 21A described above, and includes the support portion main body 44A, the reflection portion main body 45A, and the locking portions 46A, 46B, and 46C. The reflector body 41A and the reflection films 51 and 52 are included. The reflector body 41A is formed by, for example, injection molding. As the resin constituting the reflector main body 41A, for example, the same resin as the resin constituting the reflector main body 21A described above can be used.

  Next, the reflector units 21 and 41 of the first lamp unit 20 and the second lamp unit 40 will be described in more detail.

  FIG. 5 is a perspective view showing the configuration of the first lamp unit 20 and the second lamp unit 40. In addition, FIG. 5 is the figure which looked at the 1st lamp unit 20 and the 2nd lamp unit 40 from the front side. As shown in FIG. 5, the reflector unit 21 of the present embodiment includes an edge on the front side and the left side (right side in FIG. 5) and an edge on the front side and the left side (right side in FIG. 5) of the reflection unit 25. An emission port 30 defined by the portion is formed. The emission port 30 includes a front opening 30A that opens toward the front and a left opening 30B that opens toward the left, which is a specific direction different from the front, and opens from the front to the left. Further, the reflector unit 41 of the present embodiment is defined by the front side and right side (left side in FIG. 5) edges of the support part 44 and the front side and right side (left side in FIG. 5) edges of the reflection part 45. A light exit 50 is formed. The exit 50 includes a front opening 50A that opens toward the front and a right opening 50B that opens toward the right, which is a specific direction different from the front, and opens from the front to the right. As described above, the first lamp unit 20 and the second lamp unit 40 are arranged in the left-right direction, and the first lamp unit 20 is disposed on the right side, which is the outer side of the vehicle VE, than the second lamp unit 40. ing. For this reason, the left opening 30 </ b> B of the outlet 30 of the reflector unit 21 faces the right opening 50 </ b> B of the outlet 50 of the reflector unit 41.

  By the way, the reflector unit 21 of the first lamp unit 20 of the present embodiment extends along the front edge of the support portion 24 and extends from the support portion 24 to the reflection portion 25 as shown in FIGS. Has a first rib 60 projecting upward on the opposite side. The first rib 60 of the present embodiment extends from the right end to the left end at the front edge of the support portion 24. The reflector unit 21 has a second rib 61 that extends along the left edge of the reflecting portion 25 on the left opening 30 </ b> B side and protrudes from the reflecting portion 25 to the opposite side of the support portion 24. . The second rib 61 of the present embodiment extends from the front end to the rear end at the left edge of the reflecting portion 25. For this reason, the second rib 61 is a connection portion between the support portion 24 and the reflection portion 25 and is provided at a portion including the connection portion 21B between the support portion main body 24A and the reflection portion main body 25A.

  FIG. 6 is a diagram schematically showing a cross section perpendicular to the extending direction of the first rib 60, and FIG. 7 is a diagram schematically showing a cross section perpendicular to the extending direction of the second rib 61. As shown in FIG. 6, the shape of the cross section perpendicular to the extending direction of the first rib 60 of this embodiment is a quadrangle, and the first rib 60 is formed integrally with the support portion main body 24A of the support portion 24. The Further, as shown in FIG. 7, the shape of the cross section perpendicular to the extending direction of the second rib 61 of this embodiment is a quadrangle, and the second rib 61 is integrated with the reflecting portion main body 25 </ b> A of the reflecting portion 25. It is formed. The diameter D2 of the second inscribed circle C2 inscribed in the outer shape of the second rib 61 in the cross section perpendicular to the extending direction of the second rib 61 is a cross section perpendicular to the extending direction of the first rib 60 shown in FIG. Is larger than the diameter D1 of the first inscribed circle C1 inscribed in the outer shape of the first rib 60. In the present embodiment, the diameter D1 of the first inscribed circle C1 is smaller than the plate thickness 24T of the support body 24A. In addition, the shape of the cross section perpendicular | vertical to each extension direction of the 1st rib 60 and the 2nd rib 61 is not specifically limited. For example, the shape of this cross section of the first rib 60 may be a quadrangle whose chamfered shape is rounded at the apex located on the side opposite to the support body 24A. The shape may be a quadrangle that is chamfered to have a rounded apex located on the side opposite to the reflecting portion main body 25A.

  FIG. 8 is a diagram schematically showing a vertical section of the connecting portion 21B passing through the second rib 61, and is a cross-sectional view parallel to the front-rear direction and crossing the reflecting portion main body 25A in the thickness direction of the reflecting portion main body 25A. is there. As shown in FIG. 8, the diameter D2 of the second inscribed circle C2 of the present embodiment described above overlaps with a part of the connection part 21B and is a part of the outer shape of the support part body 24A and the outer shape of the reflection part body 25A. The diameter is larger than the diameter D3 of the inscribed circle C3 of the reflector main body 21A in contact with a part. In FIG. 8, the second inscribed circle C2 extends in a direction perpendicular to the paper surface. In FIG. 8, the diameter D2 of the second inscribed circle C2 at the rear end of the second rib 61 is shown. Has been.

  Next, operation | movement of the vehicle headlamp 1 of this embodiment is demonstrated.

  In the present embodiment, the low beam is formed by light emitted from the light sources 23A, 23B, and 23C of the three lamps 20A, 20B, and 20C of the first lamp unit 20. On the other hand, the high beam is formed by light emitted from the light sources 43A and 43B of the two lamps 40A and 40B of the second lamp unit 40. When irradiating a low beam, as shown in FIG. 2 and FIG. 3, most of the lights L1A, L1B, and L1C emitted from the light sources 23A, 23B, and 23C are reflected by the reflective film 32 of the reflector 25, and reflected by the reflector The light exits from the front opening 30 </ b> A at the exit 30 of the unit 21. Lights L1A, L1B, and L1C emitted from the front opening 30A are transmitted through the front cover 12 of the housing 10 and emitted to the front of the vehicle VE, and are irradiated with a low beam.

  Since the emission port 30 has a left opening 30B that opens toward the left side, a part of each of the lights L1A, L1B, and L1C emitted from the light sources 23A, 23B, and 23C is emitted from the left opening 30B. obtain. The light emitted from the left opening 30B includes light reflected by the reflecting unit 25 and directed to the left opening 30B and light directed directly to the left opening 30B. In particular, a part of the light L1A emitted from the light source 23A located in the vicinity of the left opening 30B can be emitted from the left opening 30B. The left opening 30B faces the right opening 50B of the emission port 50 of the reflector unit 41 of the second lamp unit 40. For this reason, for example, the light L12A emitted from the light source 23A and passing through the left opening 30B can enter the internal space of the reflector unit 41 through the right opening 50B. Accordingly, when the first lamp unit 20 irradiates the low beam, the second lamp unit 40 is also brightened, and the vehicle headlamp 1 can emit light as a whole.

  On the other hand, when the high beam is irradiated, as shown in FIGS. 2 and 4, most of the lights L2A and L2B emitted from the light sources 43A and 43B are reflected by the reflecting film 52 of the reflecting portion 45 to be reflected by the reflector unit 41. The light exits from the front opening 50 </ b> A at the exit 50. The lights L2A and L2B emitted from the front opening 50A are transmitted through the front cover 12 of the housing 10 and emitted to the front of the vehicle VE, and are irradiated with a high beam.

  Since the exit 50 has the right opening 50B that opens toward the right side, a part of each of the lights L2A and L2B emitted from the light sources 43A and 43B can be emitted from the right opening 50B. The light emitted from the right opening 50B includes light reflected by the reflecting portion 45 and directed to the right opening 50B and light directed directly to the right opening 50B. In particular, a part of the light L2A emitted from the light source 43A located in the vicinity of the right opening 50B can be emitted from the right opening 50B. The right opening 50B faces the left opening 30B of the emission port 30 of the reflector unit 21 of the first lamp unit 20. For this reason, for example, the light L22A emitted from the light source 43A and passing through the right opening 50B can enter the internal space of the reflector unit 21 through the left opening 30B. Therefore, when a high beam is irradiated by the second lamp unit 40, the first lamp unit 20 is also brightened, and the vehicle headlamp 1 can emit light as a whole.

  As described above, the vehicle headlamp 1 according to the present embodiment includes the first lamp unit 20 including the light sources 23A, 23B, and 23C and the reflector unit 21, and the first lamp unit 20 including the light sources 43A and 43B and the reflector unit 41. Two lamp units 40 are provided. The reflector unit 21 includes a reflector main body 21A made of resin and a reflective film 32, and the reflector unit 41 includes a reflector main body 41A made of resin and a reflective film 52. The reflector main body 21A extends in the front-rear direction and is connected to the support main body 24A to which the light sources 23A, 23B, and 23C are attached, and the support main body 24A on the rear side of the light sources 23A, 23B, and 23C and has a predetermined angle. And a reflection portion main body 25A extending forward. A reflective film 32 is provided on the surface of the reflecting portion main body 25A on the support portion main body 24A side. The reflector unit 21 has an emission port 30 that opens from the front side to the left side, which is a specific direction different from the front side. The reflector main body 41A extends in the front-rear direction and is attached to the support main body 44A to which the light sources 43A and 43B are attached and the support main body 44A on the rear side of the light sources 43A and 43B and extends forward. And a reflecting portion main body 45A. A reflective film 52 is provided on the surface of the reflective body 45A on the support body 44A side. The reflector unit 41 is formed with an emission port 50 that opens from the front side to the right side, which is a specific direction different from the front side. In addition, the first lamp unit 20 and the second lamp unit 40 include a left opening 30 </ b> B that opens toward the left side of the emission port 30 in the reflector unit 21 and a right side of the emission port 50 in the reflector unit 41. The right opening 50B that opens toward each other is arranged side by side so as to face each other. The reflector main body 21A of the first lamp unit 20 includes first ribs 60 that extend along the front edge of the support section main body 24A and protrude from the support section main body 24A to the opposite side of the reflection section main body 25A. The second rib 61 extends along the left edge of the reflecting portion main body 25A and protrudes from the reflecting portion main body 25A to the opposite side of the supporting portion main body 24A. The diameter D1 of the second inscribed circle C2 inscribed in the outer shape of the second rib 61 in the cross section perpendicular to the extending direction of the second rib 61 is the first in the cross section perpendicular to the extending direction of the first rib 60. The diameter is larger than the diameter D1 of the first inscribed circle C1 inscribed in the outer shape of the rib 60.

  According to the vehicle headlamp 1 of this embodiment, a part of the light emitted from the light sources 23A, 23B, 23C of the first lamp unit 20 passes through the left opening 30B and the right opening 50B. Thus, the light can enter the internal space of the reflector unit 41 of the second lamp unit 40. For this reason, when light radiate | emits from light source 23A, 23B, 23C of the 1st lamp unit 20, the 2nd lamp unit 40 also becomes bright and the vehicle headlamp 1 can light-emit entirely. Similarly, part of the light emitted from the light sources 43A and 43B of the second lamp unit 40 enters the internal space of the reflector unit 21 of the first lamp unit 20 through the right opening 50B and the left opening 30B. Can do. For this reason, when light radiate | emits from light source 43A, 43B of the 2nd lamp unit 40, the 1st lamp unit 20 also becomes bright and the vehicle headlamp 1 can light-emit entirely. Therefore, the vehicular headlamp 1 of the present embodiment can improve the design.

  By the way, when irradiating a low beam, the light sources 23A, 23B, and 23C generate heat, and this heat propagates to the reflector unit 21. Further, the reflector unit 21 absorbs a part of each light L1A, L1B, L1C emitted from the light sources 23A, 23B, 23C and generates heat. Due to the heat and the like, the strength of the reflector unit 21 is reduced and the reflector unit 21 is easily deformed. However, the reflector body 21A has the first rib 60 extending along the front edge of the support body 24A and the second rib 61 extending along the left edge of the reflector body 25A. In addition, the strength in the vicinity of the emission port 30 is suppressed from decreasing, and deformation of the light sources 23A, 23B, and 23C due to heat or the like is suppressed.

  The reflector unit 21 is attached to the lamp housing 11 of the housing 10 by shafts 29A, 29B, and 29C that are screwed into the locking portions 26A, 26B, and 26C, respectively. For this reason, when the reflector body 21A made of resin expands due to heat from the light sources 23A, 23B, 23C, etc., the reflector body 21A tends to receive stress from the shafts 29A, 29B, 29C. By the way, since the diameter D2 of the second inscribed circle C2 is made larger than the diameter D1 of the first inscribed circle C1, the reflector main body 21A having the first rib 60 and the second rib 61 is supported by the support main body 24A. It is suppressed that the intensity | strength in 25 A of reflection part bodies falls rather than. For this reason, the stress due to the thermal expansion described above is more likely to act on the support portion main body 24A than on the reflection portion main body 25A, and deformation of the reflection portion main body 25A is suppressed. In order to make the light distribution accurate, the shape of the reflecting portion main body 25A provided with the reflecting film 32 that reflects the light emitted from the light sources 23A, 23B, and 23C needs to be particularly precise. Therefore, the vehicular headlamp 1 can improve the design while suppressing a change in the light distribution of the first lamp unit 20.

  In the present embodiment, the first lamp unit 20 and the second lamp unit 40 are each attached to the vehicle VE so as to be tiltable. By comprising in this way, the direction of the 1st lamp unit 20 with respect to the vehicle VE and the direction of the 2nd lamp unit 40 with respect to the vehicle VE can be changed separately. For this reason, the optical axis adjustment of the first lamp unit 20 and the optical axis adjustment of the second lamp unit 40 can be performed separately.

  In the present embodiment, the reflector body 21A of the first lamp unit 20 has the first rib 60 and the second rib 61, and the light emitted from the first lamp unit 20 is a low beam. With this configuration, in the first lamp unit 20 that irradiates the low beam, the deformation of the reflector body 21 </ b> A is suppressed by the first rib 60 and the second rib 61. Since the low beam has a cut-off line, the low beam requires more accurate light distribution than the high beam. Therefore, the vehicular headlamp 1 of the present embodiment can improve the irradiation of the low beam that requires the accuracy of light distribution.

  In the present embodiment, since the diameter D1 of the first inscribed circle C1 is smaller than the plate thickness 24T of the support portion main body 24A, the plate-like support portion main body 24A is formed when the reflector main body 21A is formed. The resin constituting the first rib 60 is more easily solidified than the resin constituting it. For this reason, in the cross section perpendicular to the front-rear direction, a stress is generated in the reflector main body 21A so that the support main body 24A is curved in a convex shape on the side opposite to the reflection main body 25A. Can be prevented from being curved in a convex shape. Therefore, the reflector main body 21A can be prevented from being deteriorated in moldability, and the productivity can be improved.

  In the present embodiment, the second rib 61 is provided at the connection portion 21B between the support portion main body 24A and the reflection portion main body 25A. Further, as described above, the diameter D2 of the second inscribed circle C2 is overlapped with and supported by a part of the connecting portion 21B in a cross section parallel to the front-rear direction and crossing the reflecting portion main body 25A in the thickness direction of the reflecting portion main body 25A. It is made larger than the diameter D3 of the inscribed circle C3 of the reflector main body 21A in contact with a part of the outer shape of the part main body 24A and a part of the outer shape of the reflecting part main body 25A. With this configuration, when the reflector main body 21A is molded, the support main body 24A is more than the resin constituting the portion of the second rib 61 that is provided in the connection portion 21B between the support main body 24A and the reflection main body 25A. It becomes easy to be solidified from the resin constituting the connecting portion 21B with the reflecting portion main body 25A. For this reason, the reflector main body 21A is stressed to tilt the reflecting portion main body 25A to the side opposite to the supporting portion main body 24A with the connecting portion 21B as a fulcrum, and the reflecting portion main body 25A falls toward the supporting portion main body 24A. It can suppress that it deform | transforms. Therefore, the reflector main body 21A can be prevented from being deteriorated in moldability, and the productivity can be improved.

  As mentioned above, although this invention was demonstrated to the example for embodiment, this invention is not limited to these.

  For example, in the above embodiment, the vehicle headlamp 1 in which the first lamp unit 20 and the second lamp unit 40 are arranged side by side in the left-right direction has been described as an example. The lamp unit 20 and the second lamp unit 40 may be arranged side by side in the vertical direction. In this case, for example, the first lamp unit 20 is arranged in a state of being rotated by approximately 90 ° about the front-rear direction so that the left opening 30B in the first embodiment is positioned on the lower side. Further, the second lamp unit 40 has the right opening 50B opposed to the left opening 30B in a state in which the right opening 50B in the first embodiment is rotated approximately 90 ° about the front-rear direction so as to be positioned on the upper side. It arrange | positions below the 1st lamp unit 20 so that it may.

  In the above embodiment, the vehicle headlamp 1 in which the first lamp unit 20 emits a low beam and the second lamp unit 40 emits a high beam has been described as an example. The one lamp unit 20 may emit a high beam and the second lamp unit 40 may emit a low beam.

  Moreover, in the said embodiment, the 1st lamp unit 20 demonstrated the vehicle headlamp 1 which has three lamp 20A, 20B, 20C and the 2nd lamp unit 40 has two lamp 40A, 40B as an example. However, it is not particularly limited. The 1st lamp unit 20 and the 2nd lamp unit 40 should just have one or more lamps, for example, the 2nd lamp unit 40 may also have three lamps similarly to the 1st lamp unit 20. FIG. .

  In the above embodiment, the vehicle headlamp 1 in which the first lamp unit 20 and the second lamp unit 40 are each attached to the vehicle VE so as to be tiltable has been described as an example. The one lamp unit 20 and the second lamp unit 40 may be integrally attached to the vehicle VE. However, it is preferable that at least one of the first lamp unit 20 and the second lamp unit 40 is attached to the vehicle VE so as to be tiltable. By comprising in this way, the optical axis adjustment of at least one of the 1st lamp unit 20 and the 2nd lamp unit 40 can be performed. As described above, since the low beam has a cut-off line, the low beam requires more accurate light distribution than the high beam. The first lamp unit 20 that emits such a low beam may be required to adjust the optical axis more than the second lamp unit 40 that emits a high beam, and at least the first lamp unit 20 that emits a low beam tilts toward the vehicle VE. More preferably it can be attached. Moreover, the structure which attaches the 1st lamp unit 20 and the 2nd lamp unit 40 to the vehicle VE is the above-mentioned latching | locking part 26A, 26B, 26C, 46A, 46B, 46C and the shaft 29A, 29B, 29C, 49A, 49B, 49C. It is not limited to the structure by.

  Moreover, in the said embodiment, the reflector unit 21 in which the output port 30 prescribed | regulated by the front side and left side edge part of the support part 24, and the front side and left side edge part of the reflection part 25 is formed, and the support part 44 of FIG. The reflector unit 41 in which the emission port 50 defined by the front and right edges and the front and right edges of the reflector 45 is described as an example, but is not particularly limited. In the reflector units 21 and 41, the emission port 30 should just be formed ranging from the front to the front. For example, a rib that has the same configuration as the ribs 27A and 27B and protrudes toward the support portion 24 and extends along the left edge is formed in the reflection portion 25. The rib edge and the front of the reflection portion 25 are formed on the reflection portion 25. An outlet 30 defined by the edge and the front and left edges of the support 24 may be formed in the reflector unit 21.

  Further, in the above embodiment, the reflector unit 21 in which the right edge of the reflector 25 is connected to the right edge of the support 24, and the left edge of the reflector 45 is the left edge of the support 44. The reflector unit 41 connected to is described as an example, but is not particularly limited. For example, the reflector unit 21 may be configured such that the right edge of the reflection part 25 is not connected to the right edge of the support part 24, and the reflector unit 41 has a left edge of the reflection part 45 of the support part 44. The structure which is not connected to the left edge part may be sufficient. That is, the reflecting portions 25 and 45 do not have the side wall portions 25B and 45B, respectively, and the reflector units 21 and 41 may be formed with exit ports that open from the right side to the left side.

  In the above embodiment, the reflector main body 21 </ b> A having the first rib 60 and the second rib 61 has been described as an example. However, the reflector main body 21 </ b> A has a rib different from the first rib 60 and the second rib 61. Also good. For example, the reflector main body 21A may include a rib that extends along the left end of the support portion main body 24A, protrudes to the opposite side of the reflection portion main body 25A, and is connected to the first rib 60. The reflector main body 21A may have a rib that extends along the front edge of the reflector main body 25A and protrudes on the opposite side of the support main body 24A. By comprising in this way, it can suppress more that the intensity | strength in the vicinity of the output port 30 of 21 A of reflector main bodies falls, and the deformation | transformation by the heat | fever etc. of light source 23A, 23B, 23C can be suppressed more.

  Moreover, although the said embodiment demonstrated the 1st rib 60 by which the diameter D1 of the 1st inscribed circle C1 was made smaller than plate | board thickness 24T of 24 A of support part main bodies, it is not specifically limited. The diameter D2 of the second inscribed circle C2 may be larger than the diameter D1 of the first inscribed circle C1, and the diameter D1 of the first inscribed circle C1 is larger than the plate thickness 24T of the support body 24A. It may be. However, as described above, from the viewpoint of the moldability of the reflector main body 21A, the diameter D1 of the first inscribed circle C1 is preferably smaller than the plate thickness 24T of the support portion main body 24A.

  In the above embodiment, the second rib 61 provided in the connecting portion 21B between the support portion main body 24A and the reflecting portion main body 25A has been described as an example. However, the second rib 61 may not be provided in the connecting portion 21B. . The diameter D2 of the second inscribed circle C2 may be smaller than the diameter D3 of the inscribed circle C3 described above. However, as described above, from the viewpoint of the moldability of the reflector body 21A, the second rib 61 is provided in the connecting portion 21B, and the diameter D2 of the second inscribed circle C2 is made larger than the diameter D3 of the inscribed circle C3. It is preferable.

  Moreover, in the said embodiment, reflector main body 24A, 44A, reflector main body 25A, 45A, reflector main body 21A, 41A which has locking part 26A, 26B, 26C, 46A, 46B, 46C, and reflective film 31,51. The reflector units 21 and 41 including the reflective films 32 and 52 have been described as examples, but are not particularly limited. The reflector units 21 and 41 may be configured to include the reflector main bodies 21 </ b> A and 41 </ b> A and the reflective films 32 and 52, and may be configured without the reflective films 31 and 51. Further, the reflector main bodies 21A and 41A may be formed without including the locking portions 26A, 26B, 26C, 46A, 46B, and 46C.

  In the above embodiment, the vehicle headlamp 1 is configured such that the reflector main body 21 </ b> A of the first lamp unit 20 includes the first rib 60 and the second rib 61. However, the vehicle headlamp 1 may have a configuration in which at least one of the reflector main body 21A of the first lamp unit 20 and the reflector main body 41A of the second lamp unit 40 has the first rib 60 and the second rib 61. The vehicle headlamp 1 may be configured such that the reflector main body 41A of the second lamp unit 40 has the first rib 60 and the second rib 61, and the reflector main body 21A and the second lamp unit of the first lamp unit 20 may be used. Both of the 40 reflector main bodies 41 </ b> A may have the first rib 60 and the second rib 61.

  In the above embodiment, the vehicle headlamp 1 is formed by separating the reflector main body 21A of the first lamp unit 20 and the reflector main body 41A of the second lamp unit 40 from each other. However, the vehicle headlamp 1 may be formed by integrating the reflector body 21A and the reflector body 41A with each other, or the reflector unit 21 and the reflector unit 41 may be connected. By comprising in this way, the deformation | transformation of the vicinity of the connection part of reflector main body 21A and reflector main body 41A is suppressed by the 1st rib 60 and the 2nd rib 61. FIG. For this reason, the change of the light distribution of the 1st lamp unit 20 and the light distribution of the 2nd lamp unit 40 can be suppressed.

  ADVANTAGE OF THE INVENTION According to this invention, the vehicle headlamp which can make the designability favorable, suppressing the change of light distribution is provided, and can be utilized in the field | areas of vehicles, such as a motor vehicle.

DESCRIPTION OF SYMBOLS 1 ... Vehicle headlamp 10 ... Case 20 ... 1st lamp unit 21, 41 ... Reflector unit 21A, 41A ... Reflector main body 21B ... Supporting part main body and reflection part main body Connection parts 23A, 23B, 23C, 43A, 43B ... light sources 24, 44 ... support parts 24A, 44A ... support part main body 24T ... plate thickness 25, 45 ... of support part main body Reflector 25A, 45A ... Reflector body 30, 50 ... Emission port 30A, 50A ... Front opening 30B ... Left opening 31, 32, 51, 52 ... Reflective film 40 ... Second lamp unit 50B ... right opening 60 ... first rib 61 ... second rib C1 ... first inscribed circle C2 ... second inscribed circle C3 ... reflector body Inscribed circle D1... First inscribed circle diameter D2... Second inscribed circle diameter D3 Diameter VE ··· vehicle of the inscribed circle of ... reflector body

Claims (6)

A first lamp unit and a second lamp unit each having a light source, and a reflector unit including a reflector body made of resin and a reflective film,
The reflector main body extends in the front-rear direction and is attached to the support main body on the rear side of the light source, and has a predetermined angle with the support main body. Having a plate-like reflector main body extending toward the front,
The reflective film is provided on at least the surface of the reflective part body on the side of the support part body,
Each of the reflector units of the first lamp unit and the second lamp unit is formed with an exit opening that opens from a front to a specific direction different from the front.
The first lamp unit and the second lamp unit are arranged side by side so that the portions that open in the specific direction among the exit ports of the reflector units face each other.
At least one of the reflector body of the first lamp unit and the reflector body of the second lamp unit extends along a front edge of the support body, and extends from the support body to the reflector body. A first rib protruding to the opposite side, and a second rib extending along the edge in the specific direction of the reflecting portion main body and protruding from the reflecting portion main body to the opposite side of the supporting portion main body, Have
The diameter of the second inscribed circle inscribed in the outer shape of the second rib in the cross section perpendicular to the extending direction of the second rib is equal to the outer shape of the first rib in the cross section perpendicular to the extending direction of the first rib. A vehicular headlamp characterized by having a diameter larger than a diameter of a first inscribed circle inscribed therein. The vehicular headlamp according to claim 1, wherein the first lamp unit and the second lamp unit are arranged side by side in the left-right direction. The vehicle headlamp according to claim 1, wherein at least one of the first lamp unit and the second lamp unit is attached to the vehicle so as to be tiltable. The reflector body of the first lamp unit has the first rib and the second rib;
The vehicle headlamp according to any one of claims 1 to 3, wherein the light emitted from the first lamp unit is a low beam. 5. The vehicle headlamp according to claim 1, wherein a diameter of the first inscribed circle is smaller than a plate thickness of the support portion main body. The second rib is provided at a connection portion between the support portion main body and the reflection portion main body,
The diameter of the second inscribed circle is parallel to the front-rear direction and overlaps with a part of the connection part in a cross section crossing the reflection part main body in the thickness direction of the reflection part main body and a part of the outer shape of the support part main body. 6. The vehicle front according to claim 1, wherein a diameter of an inscribed circle of the reflector main body that is in contact with a part of an outer shape of the reflector main body is made larger. Lighting.

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