Lighting fixture for vehicle

Abstract

To secure an appropriate irradiation state of light by preventing light mixture after reducing the number of components and simplifying a structure.SOLUTION: A light fixture for vehicle includes a plurality of light sources for emitting light having different functions, a light source mounting part mounted with the plurality of light sources, an attachment member attached with the light source mounting part, and an optical component having a prescribed function, parts to be inserted are formed on the light source mounting part among the light sources for emitting light having different functions, and the optical component is provided with shading ribs to be at least partially inserted into the parts to be inserted. Thus, at least one portion of the shading ribs are inserted into the parts to be inserted of the light source mounting part, and an appropriate irradiation state of light can be secured by preventing light mixture after reducing the number of component and simplifying a structure because the light sources for emitting light having different functions are partitioned by the shading ribs.SELECTED DRAWING: Figure 11

Description

[Technical field]

[0001] The present invention relates to a technical field of a vehicle lamp in which light with different functions is emitted from a plurality of light sources. [Background technology]

[0002] 2. Description of the Related Art There is a type of vehicle lamp in which a plurality of light sources that emit light with different functions are arranged on one substrate (see, for example, Patent Document 1).

[0003] In the vehicle lamp described in Patent Document 1, a plurality of light sources that emit light for a plurality of different functions, including a light source for a tail lamp and a light source for a stop lamp, are mounted on one board.

[0004] By arranging a plurality of light sources that emit light with different functions on one substrate in this manner, it is possible to reduce the number of parts and simplify the structure. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2019-165021 A Summary of the Invention [Problem to be solved by the invention]

[0006] Incidentally, in a configuration in which multiple light sources emitting light with different functions as described above are arranged on a single substrate, the emitted light may be of different colors. In such a case, since the multiple light sources are positioned close to each other, there is a risk of light mixing.

[0007] If such light mixing occurs, it may become impossible to emit light in the correct emission color, and it may become impossible to ensure the correct illumination state of light.

[0008] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a vehicle lamp that prevents light from being mixed together and ensures an appropriate illumination state while reducing the number of parts and simplifying the structure. [Means for solving the problem]

[0009] The vehicle lamp of the present invention comprises a plurality of light sources that emit light with different functions, a light source mounting section in which the plurality of light sources are mounted, a mounting member to which the light source mounting section is attached, and an optical component having a predetermined function, wherein the light source mounting section has an insertion section formed between the light sources that emit light with different functions, and the optical component is provided with a light-shielding rib, at least a portion of which is inserted into the insertion section.

[0010] As a result, at least a portion of the light-shielding rib is inserted into the insertion portion of the light source mounting portion, and the light sources emitting light with different functions are separated by the light-shielding rib. Effect of the Invention

[0011] According to the present invention, at least a portion of the light-shielding rib is inserted into the insertion portion of the light source mounting section, and the light sources emitting light with different functions are separated by the light-shielding rib, thereby reducing the number of parts and simplifying the structure while preventing mixing of light and ensuring proper light irradiation. [Brief description of the drawings]

[0012] [Figure 1] 2 to 11 show an embodiment of a vehicle lamp according to the present invention, and this figure is a perspective view of the vehicle lamp. [Diagram 2] FIG. 2 is an exploded perspective view of the vehicle lamp. [Diagram 3] FIG. 2 is a perspective view showing a state in which a substrate is attached to a lamp housing. [Figure 4] 11 is a cross-sectional view showing a state in which a light-shielding cover is attached to a holder and a part of a light guide is covered by the light-shielding cover. FIG. [Diagram 5] FIG. 2 is a perspective view showing a state in which a light guide and a reflective member are attached to a holder. [Figure 6] FIG. 4 is a perspective view showing a part of a light guide and a light-shielding cover. [Figure 7] 4 is a cross-sectional view showing a state in which the light guide is covered with a light-shielding cover. FIG. [Figure 8] FIG. [Figure 9] FIG. [Figure 10] 11 is a cross-sectional view showing a state in which a light-shielding rib of the extension and a light-shielding rib of the lamp housing are inserted into a first partition hole and a second partition hole of the substrate, respectively. FIG. [Figure 11] 11 is a perspective view showing a state in which a light-shielding rib of the extension and a light-shielding rib of the lamp housing are inserted into a first partition hole and a second partition hole of the substrate, respectively. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a vehicle lamp according to the present invention will be described with reference to the accompanying drawings.

[0014] In the following description, the direction of light emission from the vehicle lamp is defined as the front, and the directions of front, back, up, down, left and right are indicated. Note that the directions of front, back, up, down, left and right shown below are for the convenience of explanation, and the present invention is not limited to these directions in its implementation.

[0015] The vehicle lamp 1 is provided as a so-called combination lamp that emits light having a plurality of different functions, and has the functions of, for example, a stop lamp, a backup lamp, a turn signal lamp, and a tail lamp.

[0016] A vehicle lamp 1 comprises a lamp housing 2 having an opening and an outer cover 3 that closes the opening of the lamp housing 2 (see Figs. 1 and 2). The lamp housing 2 and the outer cover 3 form a lamp outer case 4, and the internal space of the lamp outer case 4 is formed as a lamp chamber 5.

[0017] The lamp housing 2 has an opening extending from the front to the side, and is formed in a shape in which the outer portions in the left-right direction are displaced rearward as they go outward. The lamp housing 2 functions as a placement member for placing each predetermined part, and also functions as a mounting member to which a board (described later) is attached.

[0018] The lamp housing 2 is provided with a board mounting portion 6 that protrudes forward. A light-shielding rib 6a is provided on one side of the front end of the board mounting portion 6. Two positioning pins 6b that protrude forward are provided on the left and right sides at a distance from each other at the front end of the board mounting portion 6.

[0019] The outer cover 3 is formed by injection molding (two-color molding) using, for example, an opaque resin material such as black and a transparent resin material. The outer cover 3 has a first transparent portion 3a and a second transparent portion 3b formed of a transparent resin material, and a portion other than the first transparent portion 3a and the second transparent portion 3b is provided as a non-transparent portion 3c formed of an opaque resin material. The first transparent portion 3a is formed in a horizontally elongated shape, and the second transparent portion 3b is provided at a position surrounding the first transparent portion 3a and formed in a horizontally elongated ring shape.

[0020] A board 7 that functions as a light source mounting section is attached to the board mounting section 6 of the lamp housing 2. Two positioning holes 7a are formed spaced apart on the left and right sides of the board 7. The board 7 is positioned relative to the lamp housing 2 by inserting positioning pins 6b into the positioning holes 7a, and is attached to the board mounting section 6 by screws or the like while facing in the front-to-rear direction.

[0021] A first light source 8, a second light source 9, a third light source 10, and a fourth light source 11, each of which emits light with different functions, are mounted at predetermined positions on the front surface of the substrate 7 (see Figs. 2 and 3). In this manner, in the vehicle lamp 1, all of the light sources which emit light with different functions are mounted on a single substrate 7, so that it is possible to reduce the number of parts and simplify the structure.

[0022] The first light sources 8 are positioned at a distance from each other on the left and right, the second light sources 9 are positioned at a distance from each other on the lower side of the first light sources 8, and the third light sources 10 are positioned at a distance from each other on the left and right sides of the second light sources 9 on the lower side of the first light sources 8. Two fourth light sources 11 are provided and are mounted at a distance from each other on one side of the substrate 7.

[0023] The first light source 8 emits light, for example, as a stop lamp, the second light source 9 emits light, for example, as a backup lamp, the third light source 10 emits light, for example, as a turn signal lamp, and the fourth light source 11 emits light, for example, as a tail lamp.

[0024] Incidentally, the vehicle lamp 1 may be configured so that each light source such as the first light source 8 is disposed on a heat sink or the like, in which case the heat sink or the like functions as a light source mounting portion.

[0025] In the substrate 7, a first partition hole 12 and a second partition hole 13, which function as insertion portions, are formed to be spaced apart from each other on the left and right.

[0026] The first partition hole 12 is composed of a horizontal portion 12a extending left and right and a vertical portion 12b extending up and down, and the center portion in the left and right direction of the horizontal portion 12a is continuous with the upper end portion of the vertical portion 12b. The horizontal portion 12a is positioned between the first light source 8 and the second light source 9 and the third light source 10, and the vertical portion 12b is positioned between the second light source 9 and the third light source 10.

[0027] The second partition hole 13 is formed in a shape that extends vertically, and is positioned between the fourth light source 11 and the first partition hole 12 .

[0028] The inserted portion is not limited to a through shape such as the first partition hole 12 and the second partition hole 13, and may be formed as a groove opening to the front or rear. In this case, the first partition hole 12 is formed as a groove opening to the front, and the second partition hole 13 is formed as a groove opening to the rear.

[0029] With the board 7 attached to the board attachment portion 6, the light-shielding rib 6a of the lamp housing 2 is inserted into the second partition hole 13 from the rear (see FIG. 3). Therefore, the fourth light source 11 is separated from the first light source 8, the second light source 9, and the third light source 10 by the light-shielding rib 6a.

[0030] A first control body 14 and a second control body 15 are arranged vertically on the front side of the substrate 7 (see FIG. 2).

[0031] The first control body 14 has an attachment plate portion 16 facing the front-rear direction and a diffusion lens portion 17 formed in a horizontally elongated shape that diffuses the light emitted from the first light source 8, and the attachment plate portion 16 is attached to the lamp housing 2 by screwing or the like. When the first control body 14 is attached to the lamp housing 2, the diffusion lens portion 17 is located in front of the first light source 8. Therefore, the light emitted from the first light source 8 is diffused by the diffusion lens portion 17 and travels forward.

[0032] The second control body 15 has a mounting plate portion 18 facing in the front-to-rear direction, a first diffusion lens portion 19 formed in a horizontally elongated shape for diffusing light emitted from the second light source 9, and a second diffusion lens portion 20 formed in a horizontally elongated shape for diffusing light emitted from the third light source 10, and the mounting plate portion 18 is attached to the lamp housing 2 by screwing or the like.

[0033] The first diffusion lens portion 19 and the second diffusion lens portion 20 are positioned at a distance from each other on the left and right sides, and a rib insertion hole 18a is formed in the mounting plate portion 18 between the first diffusion lens portion 19 and the second diffusion lens portion 20.

[0034] When the second control body 15 is attached to the lamp housing 2, the first diffusion lens portion 19 is located in front of the second light source 9, and the second diffusion lens portion 20 is located in front of the third light source 10. Therefore, light emitted from the second light source 9 is diffused by the first diffusion lens portion 19 and travels forward, and light emitted from the third light source 10 is diffused by the second diffusion lens portion 20 and travels forward.

[0035] A holder 21 is disposed on the front side of the substrate 7. The holder 21 is formed in a horizontally elongated ring shape from, for example, a white or milky white resin material, and is attached to the lamp housing 2 by means of screws or the like.

[0036] The outer side portion 21a of the holder 21 in the left-right direction is formed in a shape that displaces rearward as it goes outward. The space inside the holder 21 is formed as an arrangement space 21b. The portion of the holder 21 near the outer periphery is provided as an arrangement recess 21c that is concave and opens forward, and the arrangement recess 21c is formed in an annular shape. A vertically elongated mounting hole 21d is formed in the inner side portion in the left-right direction of the holder 21 (see FIG. 4).

[0037] When the holder 21 is attached to the lamp housing 2, the diffusion lens portion 17 of the first control body 14, the first diffusion lens portion 19 of the second control body 15, and the second diffusion lens portion 20 of the second control body 15 are arranged in the arrangement space 21b.

[0038] A reflective member 22 made of, for example, a white resin material is attached to the side portion 21a of the holder 21 (see Figs. 2 and 5). The reflective member 22 has a base plate portion 22a attached to the side portion 21a and a standing wall portion 22b protruding from a part of the outer periphery of the base plate portion 22a, and the standing wall portion 22b is formed in a curved shape extending from above through the rear to below.

[0039] Light guide 23 is placed in placement recess 21c of holder 21. Light guide 23 is formed in a horizontally elongated ring shape, and is attached to holder 21 by engagement or the like. Light guide 23 has light guide portion 24 and connecting portion 25, and light guide portion 24 is connected by connecting portion 25. In this way, light guide 23 is formed in a ring shape with light guide portion 24 connected by connecting portion 25. By forming light guide 23 in a ring shape, the strength of light guide 23 can be increased.

[0040] Light guiding section 24 has a substantially circular cross-sectional shape, with both ends in the longitudinal direction provided as light entrance section 26, and the portion other than light entrance section 26 provided as dual-purpose section 27 that guides light and also emits light (see Figs. 2 and 6). Light entrance section 26 has a tip surface formed as incident surface 26a, and is formed in a shape that extends substantially in the front-rear direction except for the end on the dual-purpose section 27 side, with the end on the dual-purpose section 27 side provided as bent section 26b that is bent significantly.

[0041] The connecting portion 25 is formed in a plate shape that connects two light entrance portions 26 and faces substantially in the left-right direction. The connecting portion 25 has a central portion in the up-down direction that is displaced so as to bulge in one direction in the left-right direction to form a bulging portion 25a. Therefore, the connecting portion 25 has a shallow recess 25b that opens on the side opposite to the bulging direction of the bulging portion 25a. The connecting portion 25 is provided with a protruding portion 25c that protrudes rearward.

[0042] The light guide 23 is formed, for example, by injection molding using a mold. As described above, due to the direction in which the molded product is removed from the mold, the connecting portion 25 is formed into a shape having a bulge 25a and a recess 25b.

[0043] When the light guide 23 is placed in the placement recess 21c and attached to the holder 21, the incident surfaces 26a of the two light entrance parts 26 face backward and are positioned facing the fourth light source 11, and the protruding parts 25c are placed in close proximity to or in contact with the substrate 7 (see FIG. 7). By placing the protruding parts 25c in close proximity to or in contact with the substrate 7 in this manner, even if the substrate 7 or the like is deformed due to heat or the like, the fourth light source 11 will not come into contact with the incident surfaces 26a, so that the fourth light source 11 can be protected and good light distribution performance of the light emitted from the fourth light source 11 can be ensured.

[0044] In addition, when the light guide 23 is attached to the holder 21, the side portion 27a of the dual-purpose portion 27 located on the opposite side to the light entrance portion 26 in the left-right direction is positioned around the reflecting member 22 (see FIG. 5).

[0045] A light-shielding cover 28 is attached to the holder 21 from the front side, and covers the connecting portion 25 and the two light entrance portions 26 of the light guide 23 from the front side (see FIG. 2). The light-shielding cover 28 is made of a resin material having light-shielding properties, and is configured by integrally forming a shielding portion 29 and a pair of mounting legs 30 (see FIG. 7).

[0046] The shielding portion 29 has two first portions 31 positioned vertically at a distance from each other and a second portion 32 positioned between the first portions 31, and the first portions 31 are continuous with both upper and lower ends of the second portion 32. The upper first portion 31 is inclined so as to displace forward as it goes upward, and the lower first portion 31 is inclined so as to displace forward as it goes downward.

[0047] The second portion 32 has a width larger than that of the first portion 31, and has two protruding portions 32a protruding to the left and right from the first portion 31. Two light transmitting holes 32b, 32c are formed in the second portion 32, spaced apart from each other on the left and right. The light transmitting holes 32b, 32c are different in size, and for example, the light transmitting hole 32b is smaller than the light transmitting hole 32c.

[0048] The pair of mounting legs 30 protrude rearward from the second portion 32 and are spaced apart from each other on the left and right. The mounting legs 30 are elastically deformable in the left and right directions relative to the second portion 32, and have engagement claws 30a at their tips.

[0049] The light-shielding cover 28 is attached to the holder 21 by engaging the engagement claws 30a of the mounting legs 30 with the rear opening edge of the mounting hole 21d (see FIG. 4). In a state where the light-shielding cover 28 is attached to the holder 21, the two first parts 31 cover the two light entrance parts 26 of the light guide 23 from the front side, respectively, and the second part 32 covers the connecting part 25 of the light guide 23 from the front side (see FIGS. 4, 6, and 7). At this time, the light transmission hole 32c formed in the second part 32 is positioned closer to the bulge part 25a than the light transmission hole 32b (see FIG. 4). In addition, at this time, the two first parts 31 may be in contact with or separated from the two light entrance parts 26, respectively, and the second part 32 may be in contact with or separated from the connecting part 25.

[0050] When the light-shielding cover 28 is attached to the holder 21 and the first portion 31 and the second portion 32 respectively cover the light entrance portion 26 and the connecting portion 25 from the front side, the degree of light shielding by the second portion 32 for the connecting portion 25 is made smaller than the degree of light shielding by the first portion 31 for the light entrance portion 26. This difference in the degree of light shielding is realized by the fact that the light transmission holes 32b, 32c are formed in the second portion 32 and that no light transmission holes are formed in the first portion 31, as described above.

[0051] However, for example, the first portion 31 and the second portion 32 may be formed from materials having different degrees of light transmittance, thereby realizing a difference in the degree of light blocking. Also, for example, the first portion 31 and the second portion 32 may be formed from the same material having a moderate degree of light transmittance, but the first portion 31 and the second portion 32 may have different thicknesses, thereby realizing a difference in the degree of light blocking. Furthermore, for example, light transmitting holes may be formed in both the first portion 31 and the second portion 32, but the opening areas of the light transmitting holes may be different, thereby realizing a difference in the degree of light blocking.

[0052] The diffusion lens 33 is attached to the holder 21 from the front side by engagement or the like (see Figs. 2 and 7). The diffusion lens 33 is formed in a horizontally elongated ring shape, and its outer shape is formed to be substantially the same size and shape as the outer shape of the holder 21. The diffusion lens 33 is formed, for example, from a milky white resin material, and the inner space is formed as a light passing hole 33a.

[0053] When the diffusion lens 33 is attached to the holder 21, the light guide 23 and the light blocking cover 28 are covered by the diffusion lens 33 from the front side.

[0054] An extension 34 is attached to the holder 21 from the front side by engagement or the like (see FIG. 2). The extension 34 is attached to the holder 21 in a state where it covers the arrangement space 21b.

[0055] The extension 34 has a main body 35 formed in a horizontally elongated shape and a light-shielding rib 36 provided on the rear side of the main body 35 (see Figs. 2 and 9). The main body 35 has three insertion holes 35a, 35b, and 35c formed therein, which correspond to the diffusion lens portion 17 of the first control body 14, the first diffusion lens portion 19 of the second control body 15, and the second diffusion lens portion 20 of the second control body 15, respectively.

[0056] The light blocking rib 36 is made up of a horizontally elongated portion 36a extending left and right and a vertically elongated portion 36b extending up and down, with the center portion in the left and right direction of the horizontally elongated portion 36a continuing to the upper end portion of the vertically elongated portion 36b.

[0057] When the extension 34 is attached to the holder 21, the diffusion lens portion 17 of the first control body 14, the first diffusion lens portion 19 of the second control body 15, and the second diffusion lens portion 20 of the second control body 15 are inserted into the insertion holes 35a, 35b, and 35c, respectively, and at least a part of the mounting plate portion 16 of the first control body 14 and at least a part of the mounting plate portion 18 of the second control body 15 are shielded from the front by the main body portion 35. At this time, the horizontally elongated portion 36a of the light-shielding rib 36 passes between the first control body 14 and the second control body 15 and is inserted into the horizontal portion 12a of the first partition hole 12 formed in the substrate 7, and the vertically elongated portion 36b passes through the rib insertion hole 18a of the second control body 15 and is inserted into the vertical portion 12b of the first partition hole 12 formed in the substrate 7 (see FIGS. 10 and 11).

[0058] Therefore, the first light source 8, the second light source 9, and the third light source 10 are partitioned by the horizontally elongated portion 36a and the vertically elongated portion 36b of the light-shielding rib 36.

[0059] As described above, the outer cover 3 is attached to the lamp housing 2, and when the outer cover 3 is attached to the lamp housing 2, the first transparent portion 3a is positioned directly in front of the diffusion lens portion 17 of the first control body 14, the first diffusion lens portion 19 of the second control body 15, and the second diffusion lens portion 20 of the second control body 15, and the second transparent portion 3b is positioned directly in front of the light guide 23.

[0060] In the vehicle lamp 1 configured as described above, when light is emitted from the first light source 8, the emitted light is diffused by the diffusion lens portion 17 of the first control body 14, transmitted through the first transmission portion 3a of the outer cover 3, and irradiated to the outside as light of a stop lamp. When light is emitted from the second light source 9, the emitted light is diffused by the first diffusion lens portion 19 of the second control body 15, transmitted through the first transmission portion 3a of the outer cover 3, and irradiated to the outside as light of a backup lamp. When light is emitted from the third light source 10, the emitted light is diffused by the second diffusion lens portion 20 of the second control body 15, transmitted through the first transmission portion 3a of the outer cover 3, and irradiated to the outside as light of a turn signal lamp.

[0061] On the other hand, when light is emitted from the fourth light source 11, the emitted light enters the light guide 23 from the two incident surfaces 26a, is guided by the light guide portion 24, and is also emitted from the dual-purpose portion 27. The light emitted from the dual-purpose portion 27 is diffused by the diffusion lens 33, transmitted through the second transmitting portion 3b of the outer cover 3, and is irradiated to the outside as light of the tail lamp.

[0062] At this time, since the first portion 31 of the light-shielding cover 28 covers the two light-entering portions 26 from the front side, the light emitted from the light-entering portions 26 is blocked by the first portion 31, but the leaked light is emitted from the left and right regions R1, R2, R3, and R4 (see FIG. 8) of the first portion 31 and irradiated to the outside. Also, the second portion 32 of the light-shielding cover 28 covers the connecting portion 25 from the front side, but since the second portion 32 has light-transmitting holes 32b and 32c formed therein, the light emitted from the connecting portion 25 is irradiated to the outside through the light-transmitting holes 32b and 32c. Therefore, the light emitted from the fourth light source 11 is also irradiated to the outside from the region where the connecting portion 25 and the light-entering portions 26 are present. In addition, leakage light is also emitted from the left and right regions R5, R6 of the second portion 32 (see Figure 8), but the leakage light emitted from the left and right regions R5, R6 of the second portion 32 is weaker than the leakage light emitted from the left and right regions R1, R2, R3, R4 of the first portion 31.

[0063] Furthermore, when light is guided by the light guiding section 24 and emitted from the dual-purpose section 27, at least a part of the light emitted from the side section 27a of the dual-purpose section 27 is reflected by the vertical wall section 22b of the reflecting member 22 and is irradiated toward an area extending from the front to the sides. Therefore, since the light is irradiated not only forward but also to the sides, the visibility of pedestrians and passengers of other vehicles is improved.

[0064] As described above, when light is emitted from the fourth light source 11, guided by the light guide section 24, and emitted from the dual-purpose section 27, there is a possibility that light leakage may occur in each section of the light guide 23, but this leakage light is reflected by the holder 21, which is formed in a white or milky white color, and can be irradiated forward. Therefore, the holder 21 also functions as a reflector.

[0065] In addition, when light is emitted from the first light source 8 and irradiated to the outside as stop lamp light, light is simultaneously emitted from the fourth light source 11 and light as a stop lamp is also irradiated to the outside from the dual-purpose portion 27.

[0066] When light is emitted from the first light source 8, the second light source 9, the third light source 10, and the fourth light source 11 as described above, there are cases in which light is emitted from two or more of these light sources simultaneously. However, in the vehicle lamp 1, the fourth light source 11 is separated from the first light source 8, the second light source 9, and the third light source 10 by the light-shielding rib 6a of the lamp housing 2, and the first light source 8, the second light source 9, and the third light source 10 are separated by the light-shielding rib 36.

[0067] Therefore, even when light is emitted simultaneously from two or more of the first light source 8, the second light source 9, the third light source 10, and the fourth light source 11, the emitted light is not mixed and light of the appropriate color is irradiated to the outside from each region.

[0068] In addition, when the first light source 8, the second light source 9, the third light source 10, and the fourth light source 11 are turned on, heat is generated. However, since the first partition hole 12 and the second partition hole 13 are formed in the substrate 7 and the light-shielding rib 36 and the light-shielding rib 6a are inserted into the first partition hole 12 and the second partition hole 13, the heat is unlikely to be transmitted between the first light source 8, the second light source 9, the third light source 10, and the fourth light source 11.

[0069] Although the above describes an example in which the light-shielding rib 36 is provided on the extension 34, the light-shielding rib may be provided on optical components other than the extension 34. For example, the light-shielding rib may be provided on optical components such as an inner lens, reflector, or holder arranged in the lamp chamber 5.

[0070] Moreover, the light-shielding rib 6a may also be provided on an optical component such as an inner lens, a reflector, or a holder arranged in the lamp chamber 5, instead of on the lamp housing 2. In this case, the light-shielding rib may be inserted into the second partition hole 13 from the front side.

[0071] As described above, in the vehicle lamp 1, an insertion portion is formed between the light sources that emit light with different functions in the light source mounting portion, and the light-shielding ribs 36, 6a are provided, at least a portion of which is inserted into the insertion portion.

[0072] Therefore, at least a portion of the light-shielding ribs 36, 6a is inserted into the insertion portion of the light source mounting portion, and the light sources emitting light with different functions are separated by the light-shielding ribs 36, 6a, thereby reducing the number of parts and simplifying the structure, while preventing mixing of light and ensuring proper light irradiation.

[0073] Furthermore, a substrate 7 is used as the light source mounting portion, and a first partition hole 12 and a second partition hole 13 are formed as the insertion portion.

[0074] Therefore, the first partition hole 12 and the second partition hole 13 formed in the substrate 7 function as insertion portions, making it difficult for heat to be transferred to other light sources through the substrate 7 when the light source is turned on, preventing mixing of light and ensuring an appropriate light irradiation state while suppressing a decrease in the light-emitting performance of the other light sources and ensuring a good lighting state.

[0075] In particular, heat is easily transferred from the bottom to the top, but since the first light source 8, the second light source 9, and the third light source 10 are separated in the vertical direction by the horizontal portion 12a of the first partition hole 12, the horizontal portion 12a can efficiently suppress the transfer of heat from the second light source 9 and the third light source 10 to the first light source 8.

[0076] In addition, since the transfer of heat between the first light source 8, the second light source 9, the third light source 10, and the fourth light source 11 can be suppressed by the first partition hole 12 and the second partition hole 13, it becomes possible to arrange the first light source 8, the second light source 9, the third light source 10, and the fourth light source 11 close to each other.

[0077] Therefore, it is possible to ensure good light emitting performance of the first light source 8, the second light source 9, the third light source 10 and the fourth light source 11, while also achieving miniaturization of the substrate 7 and improving the degree of freedom in design.

[0078] Furthermore, a light-shielding rib 36 that is inserted into the first partition hole 12 is provided on the extension 34. The extension is generally an essential optical component for shielding a predetermined area disposed in the lamp chamber 5, and is an optical component that is disposed between the light source and the outer cover 3. Therefore, by providing the light-shielding rib 36 on the extension 34, a dedicated optical component for providing the light-shielding rib 36 is not required.

[0079] Therefore, by providing the light-shielding rib 36 on the extension 34, it becomes possible to easily form the light-shielding rib 36 without increasing the number of parts, and it is possible to prevent mixing of light while simplifying the structure.

[0080] Furthermore, the first partition hole 12 is composed of a horizontal portion 12a extending left and right and a vertical portion 12b extending up and down, and the light-shielding rib 36 is composed of a horizontal portion 36a inserted into the horizontal portion 12a and a vertical portion 36b inserted into the vertical portion 12b.

[0081] Therefore, since the three light sources (the first light source 8, the second light source 9, and the third light source 10) that emit light with different functions are separated by a single light-shielding rib 36, it is possible to easily prevent mixing of the light emitted from the three light sources while ensuring a simplified structure of the extension 34.

[0082] Furthermore, since the light-shielding rib 36 is arranged such that the horizontal portion 36a and the vertical portion 36b are continuous, no gaps are formed between the horizontal portion 36a and the vertical portion 36b, and mixing of the light emitted from the three light sources can be reliably prevented.

[0083] In addition, since the lamp housing 2 is provided with a light-shielding rib 6a which is inserted into the second partition hole 13, at least a portion of the light-shielding rib 36 is inserted into the second partition hole 13 when the substrate 7 is attached to the lamp housing 2, making it possible to attach the substrate 7 to the lamp housing 2 and insert the light-shielding rib 36 into the second partition hole 13 in a single operation, thereby improving workability.

[0084] In addition, since the light-shielding rib 36 and the light-shielding rib 6a are inserted into the first partition hole 12 and the second partition hole 13, for example, even if the substrate 7 or the extension 34 is deformed, such as warped or bent, due to heat or the like, the substrate 7 and the extension 34 do not interfere with each other, and no gaps are created between the substrate 7 and the light-shielding rib 36 or between the substrate 7 and the light-shielding rib 6a.

[0085] Therefore, even if deformation such as warping or bending occurs in the substrate 7 or the extension 34, mixing of light does not occur between the first light source 8, the second light source 9, the third light source 10, and the fourth light source 11, and mixing of light can be prevented to ensure proper light irradiation.

[0086] As described above, the inserted portion is not limited to a through-hole shape such as the first partition hole 12 and the second partition hole 13, and may be formed as a groove that opens to the front or rear. In this case, by inserting the tip of the light-shielding rib into the inserted portion from the front side, it is possible to prevent mixing of the light emitted from the four light sources (the first light source 8, the second light source 9, the third light source 10, and the fourth light source 11).

[0087] As described above, when light is emitted from the fourth light source 11, the emitted light is incident on the light guide 23 from the two incident surfaces 26a, guided by the light guide section 24, and emitted from the dual-purpose section 27. At this time, the end of the light entrance section 26 on the dual-purpose section 27 side is bent significantly to form the bent section 26b, and the amount of light emitted from the bent section 26b is greater than the amount of light emitted from the dual-purpose section 27. In addition, a part of the light emitted from the fourth light source 11 is also guided to the connecting section 25 that connects the two light entrance sections 26, and light is also emitted from the connecting section 25. The amount of light emitted from the connecting section 25 is less than the amount of light emitted from the light entrance section 26, but is greater than the amount of light emitted from the dual-purpose section 27. Furthermore, when light is emitted from the fourth light source 11, a part of the light is not incident on the incident surface 26a and is emitted forward as leakage light from the connecting section 25 and the regions R1 to R6 around the light entrance section 26.

[0088] However, in the vehicle lamp 1, a light-shielding cover 28 is provided to cover the light entrance portion 26 and the connecting portion 25, the light entrance portion 26 is covered by the first portion 31 and the connecting portion 25 is covered by the second portion 32, and the degree of light blocking by the second portion 32 is less than the degree of light blocking by the first portion 31.

[0089] Therefore, since the degree of blocking of the light exiting from the light entrance portion 26 is greater than the degree of blocking of the light exiting from the connecting portion 25, it is possible to improve the uniformity of the light exiting from the light guide 23 provided with the connecting portion 25 connecting the two light entrance portions 26.

[0090] In addition, light-transmitting holes 32b, 32c are formed in the second portion 32, and the degree of light blocking of the second portion 32 by the light-transmitting holes 32b, 32c is less than the degree of light blocking of the first portion 31. Therefore, the simple configuration can suppress the occurrence of uneven brightness and achieve uniform brightness around the entire circumference of the light guide 23.

[0091] Furthermore, since the light-transmitting holes 32b and 32c are different in size, it is possible to partially change the degree of light blocking in the second portion 32 depending on the sizes of the light-transmitting holes 32b and 32c, thereby suppressing the occurrence of uneven brightness depending on the light emission state and achieving uniform brightness around the entire circumference of the light guide 23.

[0092] In particular, in the vehicle lamp 1, the amount of light emitted from the recess 25b side in the left-right direction of the connecting portion 25 tends to be greater than the bulging side of the bulging portion 25a, and since the light transmission hole 32c, which is larger than the light transmission hole 32b, is located on the bulging portion 25a side, it is possible to uniform the amount of light emitted from the bulging portion 25a side and the recess 25b side, and uniform brightness can be achieved around the entire circumference of the light guide 23.

[0093] Furthermore, the width of the second portion 32 is made larger than the width of the first portion 31, and the second portion 32 is provided with a protruding portion 32a positioned outwardly of the first portion 31 in the width direction.

[0094] Therefore, it is possible to block light leaking from the connecting portion 25 over a wide range, and the occurrence of uneven brightness depending on the light emission state can be suppressed, making it possible to achieve uniform brightness all around the light guide 23.

[0095] In addition, a diffusion lens 33 is provided to cover the light guide 23 and the light-shielding cover 28 from the light emission direction side, so that the light emitted from the light guide 23 is diffused by the diffusion lens 33, thereby achieving even greater brightness uniformity around the entire circumference of the light guide 23.

[0096] Although the above describes an example in which the light guide 23 is formed in an annular shape, the shape of the light guide 23 is not limited to an annular shape. The light guide 23 may be configured, for example, such that the light guide section 24 is composed of two parts located above and below, and one end of each of the two parts is provided as the light entrance section 26. In this case, for example, the other ends of the two parts of the light guide section 24 may be located close to each other, and a gap formed between these other ends may be shielded by another member such as a shielding member disposed in the lamp chamber 5.

[0097] However, by forming the light guide 23 in a ring shape, it is possible to increase the strength of the light guide 23 while improving the uniformity of the light emitted from the light guide 23 and also to improve visibility. [Explanation of symbols]

[0098] 1 Vehicle lighting fixtures 2 Lamp housing (mounting part) 6a Light-shielding rib 7 Substrate 8 First Light Source 9 Second Light Source 10. The Third Light Source 11 The Fourth Light Source 12 First partition hole 12a Horizontal section 12b Vertical section 13 Second partition hole 34 Extension 36 Light-shielding rib 36a Horizontal section 36b Vertical section

Claims

1. A plurality of light sources emitting light with different functions; a light source mounting section on which the plurality of light sources are mounted; a mounting member to which the light source mounting portion is attached; and an optical component having a predetermined function, The light source mounting portion has an insertion portion formed between the light sources that emit light of different functions, The optical component is provided with a light-shielding rib, at least a part of which is inserted into the insertion portion. Vehicle lighting fixtures.

2. A substrate is used as the light source mounting portion, An insertion hole is formed as the insertion portion.

2. A vehicle lamp according to claim 1.

3. An extension that blocks a predetermined area was used as the optical component.

2. A vehicle lamp according to claim 1.

4. A first light source, a second light source, and a third light source are provided as the plurality of light sources that emit light having different functions; the first light source is positioned above the second light source and the third light source; The second light source and the third light source are positioned to be spaced apart from each other on the left and right, The inserted portion is composed of a horizontal portion extending left and right and a vertical portion extending up and down, The light-shielding rib is constituted by a horizontally elongated portion inserted into the horizontal portion and a vertically elongated portion inserted into the vertical portion.

4. A vehicle lamp according to claim 1, 2 or 3.

5. The light-shielding rib is provided on the mounting member.

2. A vehicle lamp according to claim 1.

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