JP7414833B2 - vehicle headlights - Google Patents

Description

The present invention relates to a vehicle headlamp.

Some vehicle headlights are configured to emit low beams and high beams. For example, Patent Document 1 listed below describes an example of such a vehicle headlamp. The vehicle headlamp described in Patent Document 1 has three reflective surfaces for forming a low beam and a high beam. These three reflective surfaces are arranged in the left-right direction, and the left reflective surface and right reflective surface located on the left and right sides of the central reflective surface located in the center are located approximately behind the central reflective surface. . The central reflective surface and the left reflective surface, and the central reflective surface and the right reflective surface are each connected by a flat surface.

Japanese Patent Application Publication No. 2017-069150

However, in the vehicle headlamp described in Patent Document 1, as described above, the portions connecting the central reflective surface and the left reflective surface, and the connecting portions between the central reflective surface and the right reflective surface are flat. Therefore, no consideration has been given to reinforcing this part. Therefore, when an external force is applied, there is a concern that the vehicle headlamp may be deformed starting from this connecting portion.

Therefore, an object of the present invention is to provide a vehicle headlamp that is difficult to deform.

To achieve the above object, the vehicle headlamp of the present invention includes a first reflecting surface that reflects light emitted from a first light source forward to form a first light distribution pattern, and a first reflecting surface that reflects light emitted from a first light source forward to form a first light distribution pattern; a second reflective surface that is adjacent to the reflective surface and located behind the first reflective surface and that reflects the light emitted from the second light source forward to form a second light distribution pattern; and the first reflective surface. a connecting portion extending rearward from an edge on the second reflective surface side and connecting to an edge on the first reflective surface side of the second reflective surface, the connecting portion being arranged in the left-right direction. It is characterized in that it includes at least one rib portion that protrudes toward the second reflective surface and extends from the front to the rear.

As described above, this vehicle headlamp includes a first reflective surface that forms a first light distribution pattern and a second reflective surface that forms a second light distribution pattern. Therefore, according to this vehicle headlamp, it is possible to emit, for example, a low beam and a high beam having mutually different light distribution patterns. Further, the connecting portion connecting the first reflective surface and the second reflective surface in this vehicle headlamp is provided with at least one rib portion that protrudes toward the second reflective surface in the left-right direction and extends from the front to the rear. Therefore, the strength of this connection portion can be reinforced by the rib portion. Therefore, even when an external force is applied, deformation of the vehicle headlamp starting from the connection portion can be suppressed.

Further, it is preferable that the rib portion extends from an edge of the first reflective surface on the second reflective surface side to an edge of the second reflective surface on the first reflective surface side.

In this case, the area of the rib portion is expanded compared to the case where the rib portion does not extend from the edge of the first reflective surface on the second reflective surface side to the edge of the second reflective surface on the first reflective surface side, so the connection The strength of the part can be further reinforced. Therefore, deformation of the vehicle headlamp can be further suppressed.

Further, it is preferable that the connecting portion includes a plurality of the rib portions.

In this case, the strength of the connection portion can be further reinforced compared to the case where there is only one rib portion. Therefore, deformation of the vehicle headlamp can be further suppressed.

When the connecting portion includes a plurality of rib portions, the rib portion positioned higher may have a wider width along the up-down direction.

With this configuration, the strength of the upper side of the connection portion can be further reinforced. Therefore, deformation of the connecting portion can be effectively suppressed even when an external force is applied from above, for example.

Further, it is preferable that the connecting portion reflects the light.

In this case, the light emitted from the light source is not absorbed at the connection but is reflected, so the total luminous flux of the light emitted from the vehicle headlamp decreases relative to the total luminous flux of the light emitted from the light source. In addition, the irradiation range of the vehicle headlamp can be expanded by the light reflected at the connection part.

Further, the top surface of the rib portion may be flat.

Further, the rib portion may be inclined so that the height gradually increases from the front to the rear.

With this configuration, the strength of the root, which is the rear portion of the connection portion, can be further reinforced. Therefore, deformation of the connecting portion can be effectively suppressed even when an external force is applied from the front, for example.

As described above, according to the present invention, a vehicle headlamp that is difficult to deform can be provided.

FIG. 1 is an exploded perspective view of a vehicle headlamp according to an embodiment of the present invention. FIG. 2 is a front perspective view of a vehicle headlamp according to an embodiment of the present invention, in which illustration of the front cover shown in FIG. 1 is omitted. FIG. 3 is a front perspective view with the lid shown in FIG. 2 omitted; FIG. 4 is a vertical cross-sectional view mainly showing the first reflective surface of the reflector shown in FIG. 3. FIG. FIG. 3 is a diagram showing a high beam light distribution pattern. FIG. 4 is a vertical cross-sectional view mainly showing the right second reflective surface of the reflector shown in FIG. 3; FIG. 4 is a vertical cross-sectional view mainly showing the left second reflective surface of the reflector shown in FIG. 3; FIG. 3 is a diagram showing a light distribution pattern of a low beam. FIG. 4 is an enlarged view of the right side connection portion shown in FIG. 3;

Hereinafter, embodiments for implementing a vehicle headlamp according to the present invention will be illustrated along with the accompanying drawings. The embodiments illustrated below are provided to facilitate understanding of the present invention, and are not intended to be interpreted as limiting the present invention. The present invention can be modified and improved from the following embodiments without departing from the spirit thereof. Further, in the accompanying drawings, the dimensions of each member may be exaggerated in order to facilitate understanding.

The vehicular headlamp according to the present embodiment is a vehicular headlamp that can be mounted on, for example, a two-wheeled vehicle. FIG. 1 is an exploded perspective view showing a vehicle headlamp 1 of this embodiment, and FIG. 2 is a front perspective view showing the vehicle headlamp 1.

As shown in FIGS. 1 and 2, the vehicle headlamp 1 of this embodiment is a parabolic lamp. The vehicle headlight 1 has a flat outer shape in which the length in the left-right direction is longer than the length in the vertical direction, and the length in the vertical direction of the vehicle headlight 1 is, for example, 6 cm, and the length in the left-right direction. The length is, for example, 20 cm. This vehicle headlamp 1 includes a front cover 10, a reflector 20, and a reflector holder 40. Note that in FIG. 2, illustration of the front cover 10 is omitted.

The front cover 10 is made of, for example, transparent resin, and is curved so as to be convex toward the front.

The reflector 20 is a member that reflects light emitted from a light source, which will be described later, toward the front cover 10 side, and may be made of resin, for example, and may be integrally molded. This reflector 20 includes a first reflective surface 21, a second right reflective surface 22R located on the right side with respect to the first reflective surface 21, and a second left reflective surface 22L located on the left side with respect to the first reflective surface 21. Contains. That is, the first reflective surface 21 and the second right reflective surface 22R are adjacent to each other in the left-right direction, and the first reflective surface 21 and the second left-hand reflective surface 22L are also adjacent to each other in the left-right direction. These reflective surfaces 21, 22R, and 22L are formed, for example, by vapor depositing a predetermined metal.

Convex portions 23 that protrude upward are provided on the left and right ends of the rear surface of the reflector 20 . These convex portions 23 are formed with fastener holes that penetrate in the front-rear direction. Further, on the rear surface of the reflector 20, a pair of protrusions 24 that protrude rearward are provided approximately at the center in the left-right direction. These convex portions 24 are formed with fastener holes that penetrate in the vertical direction. The front side of such a reflector 20 is covered by the front cover 10.

The reflector holder 40 includes a holder body 41 that is open at the front, and a lid portion 42 that is fixed above the holder body 41. FIG. 3 is a front perspective view showing the vehicle headlamp 1 with the lid portion 42 omitted. As shown in FIG. 3, the opening of the holder main body 41 has an outer shape into which the reflector 20 can be fitted. Therefore, the reflector 20 is fitted into this opening. Then, the fitted reflector 20 and the rear surface 41B of the holder main body 41 are fixed via a fastener inserted into the fastener hole of the convex portion 23 of the reflector 20. The front cover 10 is fitted in front of the reflector holder 40 to which the reflector 20 is fixed in this manner.

As shown in FIG. 3, a circuit board 50 is fixed above the reflector 20 fixed to the reflector holder 40 and below the lid part 42. As shown in FIG. Specifically, the circuit board 50 is fixed to the reflector 20 via a fastener inserted into a fastener hole of the convex portion 24 of the reflector 20 . As shown by the broken line in FIG. 3, the lower surface of the circuit board 50 includes a first light source 51 located above the first reflective surface 21 and a second right light source 52R located above the second right reflective surface 22R. , and a second left light source 52L located above the second left reflecting surface 22L. The circuit board 50 is formed with wiring that conducts to these light sources 51, 52R, and 52L, and power is supplied to the first light source 51, the second right light source 52R, and the second left light source 52L through this wiring. Ru. More specifically, this wiring includes, for example, a first wiring that is electrically connected to the first light source 51, and a second wiring that is electrically connected to the right second light source 52R and the left second light source 52L, and is connected to the circuit board 50. The wiring is connected to a changeover switch that switches the current supplied to the first wiring and the second wiring.

Next, the reflector 20 will be explained in more detail.

As shown in FIGS. 1 and 3, the first reflective surface 21 of the reflector 20 is formed as a curved surface that is convex toward the rear, and has a generally symmetrical outer shape in the left-right direction. In other words, the right side edge 21a and the left side edge 21b of the first reflective surface 21 are located at the forefront of the first reflective surface 21.

FIG. 4 is a longitudinal sectional view of the vehicle headlamp 1 shown in FIG. 2 mainly showing the first reflective surface 21. As shown in FIG. Note that hatching is omitted in FIG. 4 to avoid complicating the diagram. In the longitudinal cross-sectional view shown in FIG. 4, the first reflective surface 21 has a semi-parabolic outer shape that projects forward toward the bottom with the top being the apex. As described above, the first light source 51 is arranged above the first reflective surface 21. The first reflective surface 21 is formed so that the light L1 emitted from the first light source 51 is incident thereon and reflected forward. Further, the first reflecting surface 21 is formed in such a shape that the light L1 after being reflected by the reflecting surface 21 has a high beam light distribution pattern PH shown in FIG. 5, for example. In addition, in FIG. 5, the light distribution pattern PH is shown by a thick line, and the straight line S represents a horizontal line. In this light distribution pattern PH, region PHA1 is a region with high light intensity, and region PHA2 is a region with lower light intensity than PHA1. Such a light distribution pattern PH may be referred to as a first light distribution pattern.

As shown in FIGS. 1 and 3, the right second reflective surface 22R of the reflector 20 is formed as a curved surface that is convex toward the rear, and has a generally symmetrical outer shape in the left-right direction. In other words, the right side edge 22Ra and the left side edge 22Rb of the right side second reflective surface 22R are located at the forefront of the right side second reflective surface 22R. Further, the right second reflective surface 22R is disposed at the rear of the first reflective surface 21. The left side edge 22Rb of the second right reflecting surface 22R and the right side edge 21a of the first reflecting surface 21 are connected via a right side connecting portion 30R that extends generally in the front-rear direction. In this embodiment, a predetermined metal is deposited on this right side connection portion 30R. Therefore, the right side connection portion 30R reflects the light emitted from the right side second light source 52R.

FIG. 6 is a longitudinal sectional view of the vehicle headlamp 1 shown in FIG. 2 mainly showing the right second reflective surface 22R. Note that hatching is omitted in FIG. 6 to avoid complicating the diagram. In the vertical cross-sectional view shown in FIG. 6, the right second reflective surface 22R has a semi-parabolic outer shape that projects forward toward the bottom with the top as the apex. As described above, the right second light source 52R is arranged above the right second reflective surface 22R. The right second reflective surface 22R is formed so that the light L2 emitted from the right second light source 52R is incident thereon and reflected forward. Further, the right second reflective surface 22R is formed in a shape such that the light L2 after being reflected by the right second reflective surface 22R has a predetermined light distribution pattern.

As shown in FIGS. 1 and 3, the left second reflective surface 22L of the reflector 20 is formed as a curved surface that is convex toward the rear, and has a generally symmetrical outer shape in the left-right direction. In other words, the right side edge 22La and the left side edge 22Lb of the left side second reflective surface 22L are located at the forefront of the left side second reflective surface 22L. Further, the left second reflective surface 22L is arranged at the rear of the first reflective surface 21. The right edge 22La of the second left reflecting surface 22L and the left edge 21b of the first reflecting surface 21 are connected via a left connecting portion 30L that extends generally in the front-rear direction. In this embodiment, a predetermined metal is deposited on this left side connection portion 30L. Therefore, the left side connection portion 30L reflects the light emitted from the left side second light source 52L.

FIG. 7 is a longitudinal sectional view of the vehicle headlamp 1 shown in FIG. 2 mainly showing the left second reflective surface 22L. Note that hatching is omitted in FIG. 7 to avoid complicating the diagram. In the vertical cross-sectional view shown in FIG. 7, the left second reflective surface 22L has a semi-parabolic outer shape that projects forward toward the bottom with the top as the apex. As described above, the left second light source 52L is arranged above the left second reflective surface 22L. The left second reflective surface 22L is formed so that the light L3 emitted from the left second light source 52L is incident thereon and reflected forward. Further, the left second reflective surface 22L is formed in such a shape that the light L3 after being reflected by the left second reflective surface 22L has a predetermined light distribution pattern.

In this embodiment, the light distribution pattern of the light L2 after being reflected by the right second reflective surface 22R and the light distribution pattern of the light L3 after being reflected by the left second reflective surface 22L are the same as these light distribution patterns. When combined, they are formed to form a low beam light distribution pattern PL shown in FIG. 8, for example. In addition, in FIG. 8, the light distribution pattern PL is shown by a thick line, and the straight line S shows a horizontal line. Further, the region PLA1 is the region with the highest light intensity, and the light intensity decreases in the order of the region PLA2 and the region PLA3. Such a light distribution pattern PL may be referred to as a second light distribution pattern.

Next, the above-mentioned right side connection part 30R and left side connection part 30L will be further explained.

FIG. 9 is an enlarged view of the right side connection portion 30R shown in FIG. 3. As shown in FIG. As shown in FIG. 9, if the plane in which the right side edge 21a of the first reflective surface 21 is the front side edge and the left side edge 22Rb of the right second reflective surface 22R is the rear side edge is the reference plane 30RS, Two rib portions 31R1 and 31R2 that protrude to the right with respect to the reference surface 30RS are formed on the right side connecting portion 30R. That is, the rib portions 31R1 and 31R2 protrude toward the right second reflective surface 22R in the left-right direction. These rib portions 31R1, 31R2 extend from the front to the rear, and in this embodiment, from the right side edge 21a which is the front side edge of the reference surface 30RS to the left side edge which is the rear side edge of the reference surface 30RS. It extends in the front-rear direction over 22Rb. That is, the front side edges of each of the rib portions 31R1 and 31R2 protrude to the right side of the right side edge 21a of the first reflective surface 21, and the rear side edges of each of the rib portions 31R1 and 31R2 protrude to the right side from the right side edge 21a of the first reflective surface 21. It protrudes to the right side from the left side edge 22Rb of the surface 22R. Note that the rib portion 31R2 is located above the rib portion 31R1.

In this embodiment, the top surfaces of each of the rib portions 31R1 and 31R2 are flat. Further, the rib portions 31R1 and 31R2 are formed so that the length of the rib portions 31R1 and 31R2 protruding to the right increases from the front side edge toward the rear side edge. In this way, the top surfaces of the rib portions 31R1 and 31R2 in this embodiment are inclined planes that are inclined with respect to the reference surface 30RS so as to gradually become higher from the front toward the rear. Further, in the present embodiment, the rib portions 31R1 and 31R2 are arranged such that the width of the upper rib portion 31R2 along the vertical direction is wider than the width of the lower rib portion 31R1 along the vertical direction. configured.

The left side connection part 30L has generally the same configuration as the right side connection part 30R, except that the two rib parts 31L1 and 31L2 shown in FIG. 3 protrude to the left with respect to the reference plane of the left side connection part 30L. That is, the rib portions 31L1 and 31L2 extend from the left side edge 21b of the first reflective surface, which is the front side edge of the reference surface, to the right side edge 22La of the left second reflective surface 22L, which is the rear side edge of the reference surface. extending in the direction. Further, the top surfaces of each of the rib portions 31R1 and 31R2 are flat, and more specifically, are sloped flat surfaces that are inclined with respect to the reference plane so as to gradually become higher from the front to the rear. Further, the rib portions 31L1 and 31L2 are configured such that the width of the upper rib portion 31L2 along the vertical direction is wider than the width of the lower rib portion 31L1 along the vertical direction.

Next, the operation of such a vehicle headlamp 1 will be explained.

When the high beam light switch is turned on manually by the driver of a vehicle equipped with the vehicle headlight 1 or automatically by the auto light function, current is applied to the first wiring via the changeover switch. flows, and power is supplied to the first light source 51. As a result, as shown in FIG. 4, light L1 is emitted from the first light source 51. The light L1 enters the first reflective surface 21 disposed below the first light source 51, and is reflected forward by the first reflective surface 21. As described above, the first reflective surface 21 is formed such that the light distribution pattern of the light L1 after being reflected by the first reflective surface 21 becomes a high beam light distribution pattern as the first light distribution pattern. . Therefore, the light L1 reflected by the first reflective surface 21 and formed into a light distribution pattern PH as shown in FIG. 5 is emitted from the vehicle headlamp 1.

Further, when the low beam light switch is turned on manually by the driver of the vehicle equipped with the vehicle headlamp 1 or automatically by the auto light function, etc., the second wiring is turned on via the changeover switch. A current flows through, and power is supplied to the right second light source 52R and the left second light source 52L. As a result, light L2 is emitted from the right second light source 52R as shown in FIG. 6, and light L3 is emitted from the left second light source 52L as shown in FIG. The light L2 enters the right second reflective surface 22R arranged below the right second light source 52R, and is reflected forward by the right second reflective surface 22R. As described above, the second right reflecting surface 22R is formed such that the light distribution pattern of the light L2 after being reflected by the second right reflecting surface 22R becomes a predetermined light distribution pattern. Therefore, the light L2 reflected by the right second reflective surface 22R and formed in a predetermined light distribution pattern is emitted from the vehicle headlamp 1. The light L3 enters the left second reflective surface 22L arranged below the left second light source 52L, and is reflected forward by the left second reflective surface 22L. As described above, the left second reflective surface 22L is formed such that the light distribution pattern of the light L3 after being reflected by the left second reflective surface 22L becomes a predetermined light distribution pattern. Therefore, the light L3 reflected by the left second reflective surface 22L and formed into a predetermined light distribution pattern is emitted from the vehicle headlamp 1. As described above, in this embodiment, the light distribution pattern of the low beam is determined by the light distribution pattern of the light L2 reflected by the right second reflective surface 22R and the light distribution pattern of the light L3 reflected by the left second reflective surface 22L. is formed. Therefore, when the lights L2 and L3 are emitted from the vehicle headlamp 1, light having a light distribution pattern PL as a second light distribution pattern as shown in FIG. 8 is generated.

Note that a part of the light L2 emitted from the right second light source 52R does not enter the right second reflective surface 22R, or does not reflect forward even though it is incident on the right second reflective surface 22R. The light may be incident on the portion 30R. Even in this case, as described above, since the right side connection part 30R is formed to reflect the light L2, the light L2 is reflected at the right side connection part 30R, and the light L2 is reflected mainly on the right side of the vehicle headlamp 1. The light L2 is also emitted. In addition, a part of the light L3 emitted from the left second light source 52L does not enter the left second reflective surface 22L, or does not reflect forward even though it is incident on the left second reflective surface 22L. The light may be incident on the portion 30L. Even in this case, as described above, since the left side connecting portion 30L is formed to reflect the light L3, the light L3 is reflected at the left side connecting portion 30L, and the light L3 is reflected mainly on the left side of the vehicle headlamp 1. The light L3 is also emitted.

Moreover, external force may act on the right side connection portion 30R and the left side connection portion 30L due to vibrations or the like while the vehicle in which the vehicle headlamp 1 is mounted is running. However, as described above, the right side connection part 30R is provided with the rib parts 31R1 and 31R2, and the left side connection part 30L is provided with the rib parts 31L1 and 31L2, so the right side connection part 30R and the left side connection part The strength of the right side connecting portion 30R and the left side connecting portion 30L is reinforced compared to the case where such a rib portion is not provided on the right side connecting portion 30L. Therefore, even if an external force acts on the right side connecting portion 30R and the left side connecting portion 30L, deformation of these connecting portions 30R, 30L can be suppressed.

As described above, the vehicle headlamp 1 according to the present embodiment has a first light beam that reflects the light L1 emitted from the first light source 51 forward to form the high beam light distribution pattern PH, which is the first light distribution pattern. 1 reflective surface 21, which is adjacent to the first reflective surface 21 in the left-right direction and located behind the first reflective surface 21, and reflects the lights L2 and L3 emitted from the second light sources 52R and 52L forward. A second reflective surface 22R, 22L forming a low beam light distribution pattern PL, which is a two light distribution pattern, and a second reflective surface extending rearward from the edge of the first reflective surface 21 on the second reflective surface 22R, 22L side. Connecting portions 30R, 30L that connect to the edges of the reflective surfaces 22R, 22L on the first reflective surface 21 side, and the connecting portions 30R, 30L protrude toward the second reflective surfaces 22R, 22L in the left-right direction and extend forward. It is configured to include rib portions 31R1, 31R2, 31L1, and 31L2 extending rearward from.

According to such a vehicle headlamp 1, the first light source 51 emits light L1 to the first reflective surface 21, the second light source 52R emits light L2, L3 to the second reflective surfaces 22R, 22L, By switching the lighting with 52L, low beam and high beam can be emitted at desired timing.

Further, as described above, the rib portions 31R1, 31R2, 31L1, 31L2 are provided at the connecting portions 30R, 30L that connect the first reflective surface 21 and the second reflective surfaces 22R, 22L in this vehicle headlamp 1. Since this is provided, the strength of the connecting portions 30R and 30L is reinforced. Therefore, even when an external force acts on the vehicle headlamp 1, deformation of the connecting portions 30R, 30L is suppressed, and deformation of the vehicle headlamp 1 starting from the connecting portions 30R, 30L can be suppressed.

Further, as described above, in this vehicle headlamp 1, the right side connecting portion 30R reflects the light L2, and the left side connecting portion 30L reflects the light L3. Therefore, the total luminous flux of the light emitted from the vehicle headlamp 1 is suppressed from decreasing with respect to the total luminous flux of the light emitted from the light sources 51, 52R, 52L, and the connecting portions 30R, 30L The irradiation range of the vehicle headlamp 1 can be expanded by the reflected lights L2 and L3.

Furthermore, as described above, in this vehicle headlamp 1, the rib portions 31R1, 31R2, 31L1, and 31L2 are inclined so as to gradually become higher from the front toward the rear, so that the rear portion of the connection portion The strength of the base can be further reinforced. Therefore, deformation of the connecting portion can be effectively suppressed even when an external force is applied from the front, for example. Note that this configuration is not essential; for example, the top surface of the rib portion may be parallel to the reference plane.

Furthermore, as described above, in the present embodiment, the width of the rib portions 31R1 and 31R2 of the connecting portion 30R in the vertical direction of the rib portion 31R2 located above is equal to the width in the vertical direction of the rib portion 31R1 located below. It is configured to be wider than the width along the length. Similarly, the rib portions 31L1 and 31L2 of the connecting portion 30L are arranged so that the width along the vertical direction of the rib portion 31L2 located above is wider than the width along the vertical direction of the rib portion 31L1 located below. configured. With such a configuration, the strength of the upper side of the connection portion can be further reinforced. Therefore, deformation of the connecting portion can be effectively suppressed even when an external force is applied from above, for example. Note that this configuration is not essential, and the widths of the plurality of rib parts arranged in the vertical direction may be the same in the vertical direction, and the width of the lower rib part may be wider than the width of the upper rib part. .

Although the present invention has been described above using the embodiments as examples, the present invention is not limited thereto.

For example, in the above-described embodiment, the low beam light distribution pattern PL is formed by the two second reflective surfaces 22R, 22L. It may be formed by two. In this case, it is not necessary to provide one of the second reflective surfaces 22R, 22L, and it is not necessary to provide one of the second light sources 52R, 52L, so the vehicle headlamp can be downsized, and the vehicle headlamp The structure of can be simplified.

Furthermore, in the above-described embodiment, an example has been described in which the first reflective surface 21 forms the high beam light distribution pattern PH, and the two second reflective surfaces 22R and 22L form the low beam light distribution pattern PL. However, the light distribution pattern PL may be formed by the first reflective surface 21, and the light distribution pattern PH may be formed by the two second reflective surfaces 22R and 22L. Further, as described above, when the second reflecting surface is one of the reflecting surfaces 22R and 22L, the light distribution pattern PL is formed by one first reflecting surface, and the light distribution pattern is formed by one second reflecting surface. A pattern PH may also be formed. In this way, when a low beam light distribution pattern is formed by the first reflective surface 21 and a high beam light distribution pattern is formed by the second reflective surface, the low beam light distribution pattern may be referred to as the first light distribution pattern. The high beam light distribution pattern may also be referred to as a second light distribution pattern.

Further, in the above-described embodiment, an example was explained in which two rib portions are provided in each of the connecting portions 30R and 30L, but the number of rib portions provided in each connecting portion may be one, or three or more. It may be. However, when each connection part includes a plurality of rib parts, the strength of the connection part can be further reinforced compared to the case where there is only one rib part. Therefore, deformation of the vehicle headlamp can be further suppressed.

In the above-described embodiment, the rib portions 31R1, 31R2, 31L1, 31L2 extend from the edge of the first reflective surface 21 on the second reflective surface side to the edge of the second reflective surfaces 22R, 22L on the first reflective surface 21 side. I explained an example that extends to However, if the rib portion extends from the front to the rear, it does not need to extend from the edge of the first reflective surface on the second reflective surface side to the edge of the second reflective surface on the first reflective surface side. . However, if the rib portion extends from the edge of the first reflective surface on the second reflective surface side to the edge of the second reflective surface on the first reflective surface side, the rib portion extends from the second reflective surface of the first reflective surface. Compared to the case where the rib portion does not extend from the side edge to the edge of the second reflective surface on the first reflective surface side, the area of the rib portion is expanded, so that the strength of the connection portion can be further reinforced. Therefore, deformation of the vehicle headlamp can be further suppressed.

Furthermore, in the above-described embodiment, an example in which the rib portions 31R1, 31R2, 31L1, and 31L2 extend in the front-rear direction has been described, but if the rib portion extends from the front to the rear, the rib portion may extend in the vertical direction. It may be tilted.

Further, in the above-described embodiment, an example was described in which the connecting portions 30R and 30L reflect light, but it is not essential that the connecting portions 30R and 30L reflect light. However, when the connecting portions 30R and 30L reflect light, as described above, it is possible to suppress a decrease in the total luminous flux of light emitted from the vehicle headlamp, and the irradiation range of the vehicle headlamp can be suppressed. Therefore, it is preferable that the connecting portions 30R and 30L reflect light.

Further, as described above, in this vehicle headlamp 1, the top surfaces of the rib portions 31R1, 31R2, 31L1, and 31L2 are flat, but this configuration is not essential. For example, the top surface of the rib portion may be a paraboloid.

Further, in the above embodiment, a parabolic type vehicle headlamp has been described as an example, but the present invention is not particularly limited to a parabolic type.

Further, in the above-described embodiment, an example in which the vehicular lamp is mounted on a two-wheeled vehicle has been described, but the present invention is not limited thereto. For example, it may be mounted on a four-wheeled vehicle.

As described above, according to the present invention, a vehicle headlamp that is difficult to deform is provided, and can be used in the field of automobiles and the like.

Claims (7)

a first reflective surface that reflects the light emitted from the first light source forward to form a first light distribution pattern;
a second reflective surface that is adjacent to the first reflective surface in the left-right direction and located behind the first reflective surface, and that reflects the light emitted from the second light source forward to form a second light distribution pattern; ,
a connecting portion that extends rearward from an edge of the first reflective surface on the second reflective surface side and connects to an edge of the second reflective surface on the first reflective surface side;
Equipped with
The vehicle headlamp is characterized in that the connecting portion includes at least one rib portion that protrudes toward the second reflective surface in the left-right direction and extends from the front to the rear. The rib portion extends from an edge of the first reflective surface on the second reflective surface side to an edge of the second reflective surface on the first reflective surface side. vehicle headlights. The vehicle headlamp according to claim 1 or 2, wherein the connecting portion includes a plurality of the rib portions. 4. The vehicle headlamp according to claim 3, wherein the rib portion located at an upper position has a wider width along the up-down direction. The vehicle headlamp according to any one of claims 1 to 4, wherein the connecting portion reflects the light. The vehicle headlamp according to any one of claims 1 to 5, wherein the top surface of the rib portion is flat. The vehicular headlamp according to any one of claims 1 to 6, wherein the rib portion is inclined so as to gradually become higher from the front to the rear.

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