Vehicular lighting fixture

Abstract

To provide a vehicular front lighting fixture capable of emitting light from a prescribed region of an outer surface of an outer cover and suppressing light exposure from a region excluding the prescribed region.SOLUTION: A vehicular lighting fixture includes: a light non-transmissive lamp housing 10 having an opening 10h; a light transmissive outer cover 20 closing the opening 10h; a light emission optical system 30 emitting the light toward the outer cover 20; a light shielding film 40 disposed on an outer surface 20s1 in a manner of surrounding a prescribed region PA on the outer surface 20s1 of the outer cover 20; and a light shielding cover 50. The outer cover 20 includes a rib 24 projecting toward a flange portion 13 from a flange portion 23 opposed to the flange portion 13 surrounding the opening 10h of the lamp housing 10 at a prescribed interval and deposited to the flange portion 13. The light shielding cover 50 is positioned at a side opposite to a light emission optical system 30 side with respect to the rib 24, and covers at least a part of the rib 24 and an outer peripheral portion 41 of the light shielding film 40.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a vehicle lamp. [Background technology]

[0002] There is a vehicle lamp that includes a lamp housing, a light-transmitting outer cover that closes an opening of the lamp housing, and a light-emitting optical system that is disposed in a space surrounded by the lamp housing and the outer cover. Patent Document 1 below discloses such a vehicle lamp. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2011-71058 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the vehicle lamp of the above Patent Document 1, the outer cover includes a rib that protrudes toward the lamp housing from the outer periphery of the outer cover. The rib is welded to the periphery surrounding the opening in the lamp housing, thereby fixing the outer cover to the lamp housing. However, in vehicle lamps, there is a demand for emitting light only from a part of the outer cover from the viewpoint of design. Generally, lamp housings are non-transparent. Therefore, in response to this demand, for example, a light-shielding film may be provided on the outer surface of the outer cover other than the area from which light is emitted. When such a light-shielding film is provided in the vehicle lamp of the above Patent Document 1, there is a concern that light from the light-emitting optical system may be exposed to the outside through the rib welded to the lamp housing.

[0005] SUMMARY OF THE PRESENT DISCLOSURE An object of the present invention is to provide a vehicle lamp that can emit light from a predetermined area on the outer surface of an outer cover while suppressing exposure to light from areas other than the predetermined area. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the vehicle lamp of the present invention comprises a light-non-transmissive lamp housing having an opening, a light-transmissive outer cover covering the opening, an emitting optical system arranged in a space surrounded by the lamp housing and the outer cover and emitting light toward the outer cover, a light-shielding film provided on the outer surface of the outer cover so as to surround a predetermined area on the outer surface of the outer cover, and a light-shielding cover, wherein the outer cover includes a rib that protrudes from an outer periphery facing a peripheral portion surrounding the opening in the lamp housing at a predetermined interval toward the peripheral portion and is welded to the peripheral portion, and the light-shielding cover is located on the opposite side of the rib from the emitting optical system side and covers the rib and at least a portion of the outer periphery of the light-shielding film.

[0007] In this vehicle lamp, as described above, the light-shielding film is provided on the outer surface so as to surround a predetermined region on the outer surface of the outer cover. Therefore, according to this vehicle lamp, light can be emitted from a predetermined region on the outer surface of the outer cover, and light cannot be emitted from the periphery of the predetermined region. Furthermore, the light-shielding cover is located on the opposite side to the light-emitting optical system side from the rib welded to the peripheral portion of the lamp housing, and covers the rib and at least a part of the outer periphery of the light-shielding film. Therefore, the light-shielding cover can block light passing through the rib. Furthermore, the light from the light-emitting optical system can be blocked from the rib to the range blocked by the light-shielding film. Therefore, according to this vehicle lamp, exposure from parts other than the predetermined region can be suppressed compared to a case where the light-shielding cover is not provided.

[0008] The light-shielding cover may extend along the entire circumference of the peripheral edge portion and continuously cover the outer periphery of the light-shielding film in the circumferential direction.

[0009] With this configuration, exposure from areas other than the predetermined area can be further suppressed.

[0010] A distance from an inner edge to an outer edge of a surface of the lamp housing to which the rib can be welded may be at least twice the thickness of the rib.

[0011] With this configuration, even if there is variation in the position of the rib on the outer cover before the rib is welded, the rib can be easily welded.

[0012] The light blocking cover may be connected to the lamp housing.

[0013] In this case, the light-shielding cover and the lamp housing may be integral with each other.

[0014] According to this configuration, the number of parts can be reduced compared to when the light-shielding cover and the lamp housing are separate. Note that the two members being integrated means that a connecting portion that connects the two members is not formed.

[0015] The light-shielding cover may be spaced apart from the outer cover.

[0016] With this configuration, even if the light-shielding cover is connected to the lamp housing, it is possible to easily bring the outer cover and the lamp housing closer together when welding the rib to the peripheral portion, making it easier to weld the rib.

[0017] In this case, the light-shielding cover may be inclined from the lamp housing side toward the outer cover side so as to move away from the outer periphery of the outer cover.

[0018] With this configuration, it is possible to easily bring the outer cover and the lamp housing closer together when welding the rib to the peripheral portion, even if the light-shielding cover is connected to the lamp housing, compared to a case in which the light-shielding cover is inclined from the lamp housing side toward the outer cover side so as to approach the outer periphery. Also, with this configuration, when the light-shielding cover is connected to the lamp housing, it is possible to easily discharge water or the like that enters the space surrounded by the light-shielding cover, the outer cover, and the lamp housing, compared to a case in which the light-shielding cover is inclined from the lamp housing side toward the outer cover side so as to approach the outer periphery. Effect of the Invention

[0019] As described above, according to the present invention, a vehicle lamp can be provided that can emit light from a predetermined area on the outer surface of an outer cover, while suppressing exposure to light from areas other than the predetermined area. [Brief description of the drawings]

[0020] [Figure 1] 1 is a front view showing a vehicle lamp according to an embodiment of the present invention; [Diagram 2] 2 is a cross-sectional view of the vehicular lamp taken along line II-II in FIG. 1. [Diagram 3] 3 is an enlarged view of a portion including a flange portion of an outer cover in FIG. 2. FIG. [Figure 4] 1 is a diagram illustrating a welding device according to an embodiment of the present invention; [Diagram 5] 13 is a diagram illustrating a schematic view of a state in which a rib is welded to a flange portion. FIG. [Figure 6] 5 is a view similar to FIG. 3 showing a vehicle lamp according to a modified example. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] A preferred embodiment of the vehicle lamp according to the present invention will be described in detail below with reference to the drawings. 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 without departing from the spirit of the present invention. In addition, the components in the embodiments exemplified below may be appropriately combined in the present invention. In addition, in the drawings referred to below, the dimensions of each member may be changed in order to facilitate understanding. In addition, in the drawings, for ease of viewing, reference symbols may be given to only some of the similar components, and some reference symbols may be omitted.

[0022] Fig. 1 is a front view showing a vehicle lamp according to an embodiment of the present invention. Fig. 2 is a cross-sectional view of the vehicle lamp taken along line II-II in Fig. 1. The vehicle lamp 1 according to this embodiment is a width direction light for a motorcycle, and is provided on each of the left and right front sides of the vehicle. The left and right width direction lights have the same configuration, except that their shapes are generally symmetrical in the left-right direction. For this reason, the following will describe the vehicle lamp 1, which is one of the width direction lights.

[0023] As shown in FIGS. 1 and 2, a vehicle lamp 1 of this embodiment includes a lamp housing 10, an outer cover 20, a light emitting optical system 30, a light blocking film 40, and a light blocking cover 50 as main components.

[0024] The lamp housing 10 of this embodiment is non-transparent, includes a bottom plate 11 and a frame plate 12 surrounding the outer periphery of the bottom plate 11, and is configured in a box shape having one opening 10h. The non-transparent nature of the lamp housing 10 means, for example, that the transmittance of visible light is 1% or less. In this embodiment, the outer shape of the bottom plate 11 is a generally rectangular shape that is long in a predetermined direction, and the frame plate 12 is inclined so as to incline outward as it moves away from the bottom plate 11. A plate-shaped flange portion 13 that protrudes outward from the entire circumference of the end portion of the frame plate 12 is provided at the end portion opposite to the bottom plate 11 side. Therefore, the flange portion 13 is a peripheral portion that surrounds the opening 10h in the lamp housing 10. The bottom plate 11, the frame plate 12, and the flange portion 13 are integral. The lamp housing 10 may be a non-transparent box-shaped member having the opening 10h, and may further have an opening other than the opening 10h, for example.

[0025] Resin can be given as an example of the material that constitutes the lamp housing 10. The material that constitutes the lamp housing 10 in this embodiment is a black opaque resin, but the color of the resin is not limited thereto.

[0026] The outer cover 20 is a member that has optical transparency and is disposed so as to close the opening 10h. The visible light transmittance of the outer cover 20 is higher than that of the lamp housing 10, and for example, the visible light transmittance is preferably 50% or more. In this embodiment, the outer cover 20 includes a top plate 21 and a frame plate 22 that surrounds the outer periphery of the top plate 21. The outer shape of the top plate 21 is a generally rectangular shape that is long in a predetermined direction, and the frame plate 22 is inclined so as to incline outward as it moves away from the top plate 21. At the end of the frame plate 22 opposite to the top plate 21 side, a plate-shaped flange portion 23 that protrudes outward from the entire circumference of the end is provided. Therefore, the flange portion 23 is an outer periphery of the outer cover 20. The outer cover 20 is disposed so that the flange portion 23 faces the flange portion 13 of the lamp housing 10 at a predetermined interval. A linear protrusion 25 is provided in approximately the center of the top plate 21, protruding from the surface of the top plate 21 opposite the frame plate 22 and extending along the longitudinal direction of the top plate 21. The top plate 21, the frame plate 22, the flange portion 23, and the protrusion 25 are integral with each other.

[0027] Resin can be given as an example of a material constituting the outer cover 20. The material constituting the outer cover 20 in this embodiment is a colorless, transparent resin, but the color of the resin is not limited.

[0028] FIG. 3 is an enlarged view of a portion including the flange portion 23 of the outer cover 20 in FIG. 2. As shown in FIG. 3, the outer cover 20 includes a rib 24 that protrudes from the flange portion 23, which is the outer periphery, toward the flange portion 13, which is the peripheral portion of the lamp housing 10. In this embodiment, the thickness of the rib 24 decreases toward the tip, but the thickness of the rib 24 may be constant. The rib 24 has an annular shape extending along the entire circumference of the flange portion 23. The flange portion 13 of the lamp housing 10 includes a base 14 that protrudes toward the flange portion 23 from a surface facing the flange portion 23, a groove 15 that extends along the edge of the flange portion 13 on the base 14 on the outer periphery side, and a protrusion 16 that protrudes from a surface opposite to the flange portion 23 side. The base 14 and the protrusion 16 have an annular shape extending along the entire circumference of the flange portion 13. The tip surface 14s of the base 14 is approximately flat and is a surface to which the rib 24 of the outer cover 20 can be welded. The entire circumference of the rib 24 is welded to such a tip surface 14s, and the outer cover 20 is fixed to the lamp housing 10. In this embodiment, the rib 24 is welded by hot plate welding, as will be described in detail later. In FIG. 3, the shape of the tip of the rib 24 before welding is shown by a dashed line. By fixing the outer cover 20 to the lamp housing 10 in this manner, the opening 10h is closed by the outer cover 20, and a space R surrounded by the lamp housing 10 and the outer cover 20 is formed. In addition, a resin portion 24r consisting of a part of the rib 24 that was melted during welding is attached to the tip of the rib 24.

[0029] Further, a distance 14L from an inner edge 14i to an outer edge 14o of the tip surface 14s, which is a surface to which the rib 24 can be welded, is at least twice the thickness 24t of the rib 24. Note that the thickness 24t is the thickness of the thickest portion, and in this embodiment, it is the thickness at the base of the rib 24.

[0030] In this embodiment, when the outer cover 20 is fixed to the lamp housing 10, the surface of the top plate 21 opposite the frame plate 22, the surface of the protrusion 25, the outer surface of the frame plate 22, the surface of the flange portion 23 opposite the flange portion 13, and the outer peripheral surface of the flange portion 23 are exposed to the outside. That is, the outer surface 20s1, which is the surface of the outer cover 20 exposed to the outside, is made up of these surfaces. Also, the inner surface 20s2 of the outer cover 20 is made up of the surface of the top plate 21 facing the frame plate 22, the inner surface of the frame plate 22, and the surface of the flange portion 23 facing the flange portion 13.

[0031] 2, the light-emitting optical system 30 is disposed in a space R surrounded by the lamp housing 10 and the outer cover 20, and emits light toward the outer cover 20. The light-emitting optical system 30 of the present embodiment includes a light-guiding member 31 and a light source unit 38.

[0032] The light guide member 31 of this embodiment includes a main portion 32 and an incident portion 35. The main portion 32 of this embodiment is a cylindrical member having translucency, extends along the longitudinal direction of the top plate 21 of the outer cover 20, and overlaps with the protrusion portion 25 of the outer cover 20 in the direction from the lamp housing 10 side toward the outer cover 20 side. The main portion 32 has a reflecting portion 33 on the outer peripheral surface opposite to the top plate 21 side. The reflecting portion 33 is composed of a plurality of steps formed in an array along the extending direction of the main portion 32. A light reflecting film 34 is provided on each of both end faces of the main portion 32. For example, the light reflecting film 34 may be a metal vapor deposition film such as aluminum.

[0033] The incident portion 35 in this embodiment is a cylindrical member having translucency. One end of the incident portion 35 is connected to one end of the main portion 32 on the side opposite to the top plate 21 side. An end face 35s of the incident portion 35 on the side opposite to the main portion 32 side is an incident surface through which light is incident. The main portion 32 and the incident portion 35 are integral with each other. Examples of materials constituting the light guide member 31 include transparent resin and glass.

[0034] The light source unit 38 is disposed such that a light emission surface 38s from which light is emitted faces an end surface 35s of the incident portion 35, and the light from the light source unit 38 enters the incident portion 35 from the end surface 35s. In this embodiment, the light source unit 38 is an LED (Light Emitting Diode) that emits white light, but the type of the light source unit 38 and the color of the emitted light are not limited.

[0035] In the light emitting optical system 30 of this embodiment, by emitting light L from the light source section 38, the light L enters the incident section 35 from the end surface 35s, propagates inside the incident section 35, and enters the main section 32. Of the light L that enters the main section 32, the light L that enters the reflecting section 33 is reflected by the reflecting section 33 and exits from the top plate 21 side of the outer circumferential surface of the main section 32. In other words, the multiple steps of the reflecting section 33 are configured so that the reflected light L exits from the top plate 21 side. In addition, light reflecting films 34 are provided on both end faces of the main section 32. Therefore, the light L that enters the main section 32 is suppressed from exiting from both end faces of the main section 32.

[0036] As shown in FIG. 1 and FIG. 2, the light-shielding film 40 is a film provided on the outer surface 20s1 of the outer cover 20 so as to surround a predetermined area PA on the outer surface 20s1, and is a film that blocks visible light. In FIG. 1, the light-shielding film 40 is indicated by hatching consisting of a plurality of dots. In this embodiment, the predetermined area PA is the entire surface of the protrusion 25. The light-shielding film 40 is provided on the surface of the outer surface 20s1 opposite to the frame plate 22 side of the top plate 21, the outer surface of the frame plate 22, the surface of the flange portion 23 opposite to the flange portion 13 side, and the outer peripheral surface of the flange portion 23. That is, in this embodiment, the light-shielding film 40 is provided on the entire outer surface 20s1 except for the predetermined area PA. In addition, the portion of the light-shielding film 40 provided on the outer peripheral surface of the flange portion 23 can be understood as the outer peripheral portion 41 of the light-shielding film 40.

[0037] The light-shielding film 40 preferably has a visible light transmittance of, for example, 1% or less. The light-shielding film 40 in this embodiment is a film made of black paint, but is not limited thereto. For example, the light-shielding film 40 may be a film made of paint of a color other than black. The light-shielding film 40 may have a multi-layer structure, and may be, for example, a multi-layer film made of a metal vapor deposition film such as aluminum provided on the outer surface 20s1 and paint provided on the metal vapor deposition film.

[0038] 1 to 3, the light-shielding cover 50 of this embodiment is a plate-shaped member located on the opposite side to the light-emitting optical system 30 side from the rib 24 of the outer cover 20. As shown in Fig. 3, the light-shielding cover 50 covers the rib 24 and at least a part of the outer periphery 41 of the light-shielding film 40. The light-shielding cover 50 preferably has a visible light transmittance of, for example, 1% or less.

[0039] The light-shielding cover 50 may be made of the same material as the lamp housing 10, for example. The lamp housing 10 in this embodiment is made of a black opaque resin.

[0040] In this embodiment, the light-shielding cover 50 is connected to the lamp housing 10, and specifically, the end of the light-shielding cover 50 on the lamp housing 10 side is connected to the outer periphery of the flange portion 13 as the peripheral portion. The light-shielding cover 50 and the lamp housing 10 are integral with each other. The light-shielding cover 50 extends along the entire circumference of the flange portion 13 as the peripheral portion, and the light-shielding cover 50 is cylindrical. The entire end 51 of the light-shielding cover 50 on the outer cover 20 side is located closer to the top plate 21 than the flange portion 23 of the outer cover 20. Therefore, the light-shielding cover 50 continuously covers the outer periphery 41 of the light-shielding film 40 in the circumferential direction. The light-shielding cover 50 is separated from the outer cover 20 and inclined so as to move away from the flange portion 23 from the lamp housing 10 side toward the outer cover 20 side.

[0041] Next, a welding device for welding the ribs 24 of the outer cover 20 to the flange portion 13 of the lamp housing 10 in this embodiment will be described.

[0042] Fig. 4 is a schematic diagram of the welding device of this embodiment. As shown in Fig. 4, the welding device 60 of this embodiment is a hot plate welding device, and mainly includes an upper die 61, a lower die 62, and a heating unit 63.

[0043] The upper die 61 is a movable die that can move in the vertical direction. A recess having a bottom surface corresponding to the outer surface 20s1 of the outer cover 20 is formed on the lower surface of the upper die 61, and the outer cover 20 can be fitted into the recess. In this embodiment, the portion of the outer cover 20 that is fitted into the recess is the top plate 21 and the portion of the frame plate 22 on the top plate 21 side, and the flange portion 23 protrudes from the recess. The upper die 61 is configured to be able to hold the outer cover 20 by sucking the outer cover 20 fitted into the recess with a suction device (not shown).

[0044] The lower mold 62 is a fixed mold disposed below the upper mold 61. A recess having a bottom surface corresponding to the outer surface of the lamp housing 10 is formed on the upper surface of the lower mold 62, and the lamp housing 10 can be fitted into the recess. In this embodiment, a member consisting of the lamp housing 10 and the light-shielding cover 50 can be fitted into the recess.

[0045] The heating unit 63 is movable in the horizontal direction and can be switched between a state in which it is positioned between the upper die 61 and the lower die 62 and a state in which it is not positioned between the upper die 61 and the lower die 62. The heating unit 63 includes an upper heating plate 64 exposed upward and a lower heating plate 65 exposed downward. The outer shape of the upper heating plate 64 is an annular shape corresponding to the rib 24 of the outer cover 20, and the outer shape of the lower heating plate 65 is an annular shape corresponding to the base 14 of the lamp housing 10.

[0046] In this embodiment, the rib 24 is welded to the flange portion 13 of the lamp housing 10 using a welding device 60. First, as shown in FIG. 4, in a state where the upper mold 61 and the lower mold 62 are separated from each other, a heating unit 63 is disposed between the upper mold 61 and the lower mold 62, and the upper heating plate 64 is opposed to the rib 24 and the lower heating plate 65 is opposed to the pedestal 14. Next, the upper heating plate 64 and the lower heating plate 65 are heated, and the tip of the rib 24 is melted by the heat of the upper heating plate 64, and the tip of the pedestal 14 is melted by the heat of the lower heating plate 65. In this embodiment, the upper heating plate 64 and the rib 24, and the lower heating plate 65 and the pedestal 14 are separated from each other, but may be in contact with each other.

[0047] Fig. 5 is a diagram that shows a schematic view of welding the rib 24 to the flange portion 13. After the rib 24 and the base 14 are heated, as shown in Fig. 5, the heating unit 63 is moved so that the heating unit 63 is not positioned between the upper mold 61 and the lower mold 62. Then, the upper mold 61 is moved downward to press the rib 24 against the tip surface 14s of the base 14, thereby welding the rib 24 to the tip surface 14s.

[0048] The method of welding the rib 24 to the flange portion 13 is not limited to hot plate welding, and may be, for example, ultrasonic welding or the like.

[0049] Next, the operation of the vehicle lamp 1 of this embodiment will be described.

[0050] As shown in FIG. 2, by emitting light L from the light source unit 38 of the light-emitting optical system 30, the light L enters the entrance unit 35 from the end face 35s of the entrance unit 35, and enters the main unit 32 from the entrance unit 35. The light L that enters the main unit 32 is reflected by the reflecting unit 33 and exits from the top plate 21 side of the outer peripheral surface of the main unit 32 toward the outer cover 20, and enters the outer cover 20 from the inner surface 20s2. The light L that enters the outer cover 20 and reaches a predetermined area PA on the outer surface 20s1 of the outer cover 20 exits from the predetermined area PA, and the light L that reaches areas other than the predetermined area PA on the outer surface 20s1 of the outer cover 20 is blocked by the light-shielding film 40. In this way, in the vehicle lamp 1 of this embodiment, light is emitted from the predetermined area PA on the outer surface 20s1 of the outer cover 20, and emission of light from the periphery of the predetermined area PA is suppressed.

[0051] As described above, the vehicle lamp 1 of this embodiment includes a non-light-transmitting lamp housing 10 having an opening 10h, a light-transmitting outer cover 20 that closes the opening 10h, a light-emitting optical system 30, a light-shielding film 40, and a light-shielding cover 50. The light-emitting optical system 30 is disposed in a space R surrounded by the lamp housing 10 and the outer cover 20, and emits light L toward the outer cover 20. The light-shielding film 40 is provided on the outer surface 20s1 of the outer cover 20 so as to surround a predetermined area PA on the outer surface 20s1 of the outer cover 20. Therefore, according to the vehicle lamp 1 of this embodiment, light can be emitted from a predetermined area on the outer surface of the outer cover, and light can be prevented from being emitted from the periphery of the predetermined area. The outer cover 20 includes a flange portion 23 as an outer periphery and a rib 24. The flange portion 23 faces the flange portion 13 as a peripheral portion surrounding the opening 10h in the lamp housing 10 at a predetermined interval, and the rib 24 protrudes from the flange portion 23 toward the flange portion 13 and is welded to the flange portion 13. The light-shielding cover 50 is located on the opposite side of the rib 24 to the light-emitting optical system 30 side, and covers the rib 24 and at least a part of the outer periphery 41 of the light-shielding film 40. Therefore, the light-shielding cover 50 can block light transmitted through the rib 24. In addition, the light from the light-emitting optical system 30 can be blocked from the range from the rib 24 to the range blocked by the light-shielding film 40. Therefore, according to the vehicle lamp 1 of this embodiment, exposure from parts other than the predetermined area PA can be suppressed compared to a case where the light-shielding cover 50 is not provided.

[0052] In the vehicle lamp 1 of this embodiment, the light-shielding cover 50 extends along the entire circumference of the flange portion 13 as a peripheral portion, and continuously covers the outer circumferential portion 41 of the light-shielding film 40 in the circumferential direction. Therefore, according to the vehicle lamp 1 of this embodiment, light exposure from portions other than the predetermined area PA can be further suppressed.

[0053] In the vehicle lamp 1 of this embodiment, the rib 24 extends along the entire circumference of the flange portion 23 as the outer periphery, and the entire circumference of the rib 24 is welded to the flange portion 13. Therefore, the vehicle lamp 1 of this embodiment can prevent water and the like from entering the space R surrounded by the lamp housing 10 and the outer cover 20. The rib 24 may be divided into a plurality of portions spaced apart from each other in the circumferential direction.

[0054] In the vehicle lamp 1 of this embodiment, a distance 14L from an inner edge 14i to an outer edge 14o of a tip surface 14s, which is a surface of the lamp housing 10 to which the rib 24 can be welded, is at least twice the thickness 24t of the rib 24. Therefore, according to the vehicle lamp 1 of this embodiment, even if there is variation in the position of the rib 24 on the outer cover 20 before the rib 24 is welded, the rib 24 can be easily welded.

[0055] In the vehicle lamp 1 of this embodiment, the light-shielding cover 50 is connected to the lamp housing 10, and the light-shielding cover 50 and the lamp housing 10 are integrated together. Therefore, according to the vehicle lamp 1 of this embodiment, the number of parts can be reduced compared to when the light-shielding cover 50 and the lamp housing 10 are separate.

[0056] In the vehicle lamp 1 of this embodiment, the light-shielding cover 50 is separated from the outer cover 20. Therefore, according to the vehicle lamp 1 of this embodiment, even if the light-shielding cover 50 is connected to the lamp housing 10, it is possible to easily bring the outer cover 20 and the lamp housing 10 close to each other when welding the rib 24 to the flange portion 13, and it is possible to easily weld the rib 24.

[0057] In the vehicle lamp 1 of this embodiment, the light-shielding cover 50 is inclined away from the flange portion 23 as the outer periphery from the lamp housing 10 side toward the outer cover 20 side. Therefore, according to the vehicle lamp 1 of this embodiment, it is easier to bring the outer cover 20 and the lamp housing 10 closer to each other when welding the rib 24 to the flange portion 13, compared to the case where the light-shielding cover 50 is inclined toward the flange portion 23 from the lamp housing 10 side toward the outer cover 20 side. Furthermore, according to the vehicle lamp 1 of this embodiment, it is easier to discharge water or the like that enters the space surrounded by the light-shielding cover 50, the outer cover 20, and the lamp housing 10, compared to the above case.

[0058] Although the present invention has been described above using the above-mentioned embodiments as examples, the present invention is not limited to these.

[0059] For example, in the above embodiment, the light-shielding cover 50 has been described as being cylindrical and extending along the entire circumference of the flange portion 13 as the peripheral edge portion. However, it is sufficient that the light-shielding cover 50 is located on the opposite side to the light-emitting optical system 30 side from the rib 24, and covers the rib 24 and at least a part of the outer circumferential portion 41 of the light-shielding film 40. For example, the light-shielding cover 50 may be divided into a plurality of portions spaced apart from each other in the circumferential direction.

[0060] In the above embodiment, the lamp housing 10 including the flange portion 13 as the peripheral portion has been described as an example. However, it is sufficient for the lamp housing 10 to have the opening 10h. For example, the lamp housing 10 does not need to include the flange portion 13. In this case, for example, the end portion of the frame plate 12 opposite the bottom plate 11 side is the peripheral portion, and the rib 24 is welded to the end face of the frame plate 12 opposite the bottom plate 11 side.

[0061] In the above embodiment, the outer cover 20 including the flange portion 23 as the outer periphery has been described as an example. However, the outer cover 20 only needs to cover the opening 10h and include the rib 24 welded to the peripheral portion of the lamp housing 10. For example, the outer cover 20 does not need to include the flange portion 23. In this case, for example, the end of the frame plate 22 opposite to the top plate 21 side is the outer periphery, and the rib 24 protrudes from the end face of the frame plate 22 opposite to the top plate 21 side. Also, the outer cover 20 may be composed of only the top plate 21. In this case, the outer periphery of the outer cover 20 is the outer periphery of the top plate 21, and the rib 24 protrudes from the surface of the outer periphery on the lamp housing 10 side.

[0062] In the above embodiment, the predetermined area PA on the outer surface 20s1 of the outer cover 20 is the entire surface of the protrusion 25. However, the predetermined area PA is not limited to this, and the outer cover 20 does not have to include the protrusion 25.

[0063] Also, in the above embodiment, the light-shielding film 40 is provided on the entire outer surface 20s1 of the outer cover 20 except for the predetermined area PA. However, it is sufficient that the light-shielding film 40 is provided on the outer surface 20s1 so as to surround the predetermined area PA on the outer surface 20s1 of the outer cover 20, and at least a part of the outer periphery 41 of the light-shielding film 40 is covered by the light-shielding cover 50. For example, the light-shielding film 40 does not have to be provided on the flange portion 13 side of the outer periphery of the flange portion 23.

[0064] In the above embodiment, the light shielding cover 50 is connected to the flange portion 13 as the peripheral portion, and the light shielding cover 50 and the lamp housing are integrated. However, the light shielding cover 50 and the lamp housing 10 may be separate bodies, and such a modified example will be described with reference to FIG. 6. FIG. 6 is a view showing a vehicle lamp 1 in a modified example similar to FIG. 3. The vehicle lamp 1 of this modified example is mainly different from the vehicle lamp 1 of the above embodiment in that the light shielding cover 50 and the lamp housing 10 are separate bodies. In this modified example, the end of the light shielding cover 50 on the lamp housing 10 side is fixed to the flange portion 13 of the lamp housing 10 by an adhesive 55, so that the light shielding cover 50 is connected to the flange portion 13. The fixing method of the light shielding cover 50 is not limited, and it may be fixed by a screw, for example.

[0065] Although not illustrated, the light-shielding cover 50 may be separated from the lamp housing 10 and the outer cover 20. In this case, for example, the light-shielding cover 50 is supported by a support member different from that of the lamp housing 10 and the outer cover 20. The light-shielding cover 50 may be fixed to the outer cover 20.

[0066] In the above embodiment, the light-emitting optical system 30 including the light-guiding member 31 and the light source unit 38 has been described as an example. However, the light-emitting optical system 30 may be disposed in the space R surrounded by the lamp housing 10 and the outer cover 20, and may emit light toward the outer cover 20. For example, the light-emitting optical system 30 may be configured to include a light source unit and a reflector that reflects the light emitted from the light source unit toward the outer cover 20.

[0067] In the above embodiment, the vehicle lamp 1 is a sidelight. However, the vehicle lamp 1 is not limited to this. For example, the vehicle lamp 1 may be a turn signal lamp, brake lamp, tail lamp, etc. for a two-wheeled vehicle, or may be any of these lamps for a four-wheeled vehicle. [Industrial Applicability]

[0068] According to the present invention, a vehicle lamp is provided that can emit light from a specified area on the outer surface of an outer cover while suppressing exposure to light from areas other than the specified area, and can be used in fields such as vehicle lamps for automobiles, etc. [Explanation of symbols]

[0069] 1. Vehicle lighting fixture 10...Lamp housing 10h...Aperture 13 Flange portion (periphery) 20···Outer cover 20s1...External surface 23 Flange portion (outer periphery) 24 Ribs 30. Illumination optical system 40....Light-shielding film 41...Outer periphery 50···Shade cover PA...Specified area

Claims

1. a lamp housing having an opening and being non-light-transmitting; a light-transmitting outer cover that covers the opening; a light emitting optical system that is disposed in a space surrounded by the lamp housing and the outer cover and emits light toward the outer cover; a light-shielding film provided on the outer surface of the outer cover so as to surround a predetermined area on the outer surface; A light-shielding cover and Equipped with the outer cover includes a rib that protrudes from an outer periphery facing a peripheral portion surrounding the opening of the lamp housing at a predetermined interval toward the peripheral portion and is welded to the peripheral portion, The light-shielding cover is located on the opposite side of the rib from the light-emitting optical system, and covers the rib and at least a part of the outer periphery of the light-shielding film. A vehicle lamp characterized by the above.

2. The light-shielding cover extends along the entire circumference of the peripheral portion and continuously covers the outer periphery of the light-shielding film in the circumferential direction.

2. The vehicle lamp according to claim 1.

3. The distance from the inner edge to the outer edge of the surface of the lamp housing to which the rib can be welded is at least twice the thickness of the rib.

2. The vehicle lamp according to claim 1.

4. The light-shielding cover is connected to the lamp housing.

4. A vehicle lamp according to claim 1, wherein the first and second electrodes are arranged in a first direction.

5. The light-shielding cover and the lamp housing are integral with each other.

5. The vehicle lamp according to claim 4.

6. The light-shielding cover is spaced apart from the outer cover.

2. The vehicle lamp according to claim 1.

7. The light-shielding cover is inclined from the lamp housing side toward the outer cover side so as to move away from the outer periphery of the outer cover.

7. A vehicle lamp according to claim 6.

Images