Vehicular lighting fixture

Abstract

To prevent light leakage from a light guide body and to achieve weight saving.SOLUTION: A vehicular lighting fixture includes: a light guide body which extends in a predetermined direction and in which at least one end surface is formed as an incident surface and part of an outer peripheral surface is formed as an emission surface; a reflector which has a reflection surface and in which the reflection surface is positioned opposed to a portion other than the emission surface in the outer peripheral surface of the light guide body; and a shade which has first and second portions and a hinge part, and in which the first portion and the second portion are foldable via the hinge part. In the light guide body, a portion closer to the incident surface side than the emission surface is provided as an end part for light guide, and the shade is arranged in a sate of sandwiching the end part for light guide and part of the reflector by the folded first and second portions.SELECTED DRAWING: Figure 11

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle lamps in which light emitted from a light source is guided by a light guide and then emitted.

Background Art

[0002] Some vehicle lamps function as a combination lamp configured such that a plurality of types of lamp units, such as a headlamp unit, are arranged inside a lamp outer casing composed of a cover and a lamp housing, and light is emitted separately from each lamp unit (see, for example, Patent Document 1). In the vehicle lamp described in Patent Document 1, a base member to which each part of each lamp unit is attached is provided. The base member is attached to the lamp housing.

[0003] On the other hand, some vehicle lamps are provided with a lamp unit having a light guide (light guide) extending in a predetermined direction, and are configured such that light is guided by the light guide and then emitted (see, for example, Patent Documents 2, 3, and 4). In such a vehicle lamp, a shade is provided to prevent light leakage from a part of the light guide.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

Summary of the Invention

Problems to be Solved by the Invention

[0005] Incidentally, in a vehicle lamp that functions as a combination lamp as described in Patent Document 1, multiple lamp units are arranged inside the lamp housing, which tends to increase the size of the base member, becoming an obstacle to reducing the weight of the vehicle lamp.

[0006] In particular, a lamp having a light guide in a plurality of lamp units In a configuration in which a unit is present and a light guide is required, when the light guide is attached to a base member, a light guide attachment portion for attaching the light guide to the base member may be required, or a mounting portion for the lamp housing may need to be provided near the light guide attachment portion in order to stabilize the mounting state of the base member to the lamp housing. If a light guide attachment portion or a mounting portion is provided on the base member in this way, the base member becomes even larger, further increasing the weight of the vehicle lamp.

[0007] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a vehicle lamp that is lightweight while preventing light leakage from a light guide. [Means for solving the problem]

[0008] The vehicle lamp of the present invention comprises a light guide extending in a predetermined direction, at least one end face formed as an incident surface and a part of an outer peripheral surface formed as an exit surface, a reflector having a reflective surface positioned opposite a part of the outer peripheral surface of the light guide other than the exit surface, and a shade having a first part, a second part and a hinge part, the first part and the second part being foldable via the hinge part, wherein the part of the light guide closer to the incident surface than the exit surface is provided as a light guiding end, and the shade is positioned in a state where the light guiding end and a part of the reflector are sandwiched between the folded first part and the second part.

[0009] As a result, the light guiding end portion between the entrance surface and the exit surface is sandwiched between the folded first and second portions. Effect of the Invention

[0010] According to the present invention, since the light guide end portion between the incident surface and the exit surface is sandwiched from both sides by the folded first portion and the second portion, when the base member is arranged, it is not necessary to provide a light guide attachment portion or an attachment portion to the lamp housing on the base member, the base member is miniaturized, and light leakage from the light guide can be prevented while reducing the weight.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Embodiments for Carrying Out the Invention

[0012] Hereinafter, embodiments for implementing the vehicle lamp of the present invention will be described with reference to the accompanying drawings.

[0013] Hereinafter, the front, rear, up, down, left, and right directions will be described with the irradiation direction of light from the vehicle lamp being the front. However, the front, rear, up, down, left, and right directions shown below are for convenience of explanation and are not limited to these directions in the implementation of the present invention.

[0014] The vehicle lamp 1 is provided as a combination lamp having a plurality of lamp units including, for example, a headlamp unit (see FIG. 1). The vehicle lamp 1 has, for example, three lamp units: a headlamp unit 100, a clearance lamp unit 200, and a front turn signal lamp unit 300. The clearance lamp unit 200 also functions as a daytime running lamp unit. However, as long as the vehicle lamp 1 is configured to have a plurality of lamp units, lamp units with other functions may be provided.

[0015] In the vehicle lamp 1, the clearance lamp unit 200 is positioned so as to extend left and right at a substantially central portion in the vertical direction, the headlamp unit 100 is positioned above the clearance lamp unit 200, and the front turn signal lamp unit 300 is positioned below the clearance lamp unit 200. The headlamp unit 100 is arranged at a position closer to the outside in the left - right direction of the vehicle, and the front turn signal lamp unit 300 is arranged at a position closer to the inside in the left - right direction of the vehicle.

[0016] Note that since the present invention is an invention related to the clearance lamp unit 200, the description and illustration of the headlamp unit 100 and the front turn signal lamp unit 300 will be omitted in the following description and the figures referred to.

[0017] The vehicle lamp 1 includes a lamp housing 2 having an opening at the front end and a cover 3 that closes the opening of the lamp housing 2 (see Fig. 2). The lamp housing 2 and the cover 3 constitute a lamp outer casing 4, and an internal space of the lamp outer casing 4 is formed as a lamp chamber 5.

[0018] The lamp housing 2 has a rear surface portion 6 facing substantially in the front-rear direction and a peripheral surface portion 7 protruding forward from the outer peripheral portion of the rear surface portion 6, and a portion corresponding to the outer side in the left-right direction of the vehicle is provided as a side portion 8. The side portion 8 is bent so as to be displaced rearward as it goes from the inner side to the outer side in the left-right direction of the vehicle. A member mounting portion 9 is provided on the side portion 8, and an arrangement hole 9a penetrating substantially in the front-rear direction is formed in the member mounting portion 9. An insertion protrusion 9b protruding substantially forward is provided at the front end portion of the member mounting portion 9 at a position around the arrangement hole 9a.

[0019] A heat sink 10 is attached to the member mounting portion 9 from the rear side. The heat sink 10 has a disk-shaped light source base 10a facing substantially in the front-rear direction and a plurality of radiation fins 10b protruding rearward from the light source base 10a. Two alignment pins 10c protruding substantially forward are provided on the heat sink 10 at positions spaced apart in the circumferential direction from the outer peripheral portion of the light source base 10a.

[0020] The heat sink 10 is attached to the member mounting portion 9 in a state where the light source base 10a covers the arrangement hole 9a from the rear, and the alignment pin 10c protrudes substantially forward from the arrangement hole 9a.

[0021] A light source 11 is mounted on the light source base 10a of the heat sink 10 by, for example, an insulating adhesive. As the light source 11, for example, a light emitting diode (LED) is used. The light source 11 is positioned in the arrangement hole 9a in a state where the heat sink 10 is attached to the member mounting portion 9.

[0022] A bracket 12 is attached to the member attachment portion 9 by screwing or the like from the front side. The bracket 12 is also attached to a portion of the lamp housing 2 other than the member attachment portion 9 by screwing or the like.

[0023] The bracket 12 has a light guide body arrangement portion 13, an insertion projection portion 14, and a mechanism assembly portion 15. A member insertion hole 13a penetrating substantially in the front-rear direction is formed in the light guide body arrangement portion 13. A plurality of receiving projections 13b extending substantially in the front-rear direction are provided in the light guide body arrangement portion 13, and two receiving projections 13b are located vertically spaced apart from each other on both the left and right sides, for example. The insertion projection portion 14 projects upward from the light guide body arrangement portion 13 and has a projection insertion hole 14a penetrating substantially in the front-rear direction. The mechanism assembly portion 15 projects laterally from the light guide body arrangement portion 13 and has two fan attachment portions 15a located, for example, spaced apart from each other left and right. A cooling fan (not shown) is attached to the fan attachment portion 15a from the rear. The cooling fan is mainly a fan for cooling each part of the headlamp unit 100.

[0024] The bracket 12 is attached to the lamp housing 2 by screwing in a state where the insertion projection 9b of the member attachment portion 9 is inserted into the projection insertion hole 14a.

[0025] A base member 16 is disposed in the lamp chamber 5 in a state of being attached to the rear surface portion 6 of the lamp housing 2. The base member 16 has a reflector attachment portion 17 extending substantially left and right and a unit base portion 18 located below the base member 16.

[0026] The reflector attachment portion 17 has a plate-shaped first receiving surface portion 19 facing substantially in the front-rear direction, a second receiving surface portion 20 projecting forward from the lower end portion of the first receiving surface portion 19, and a projecting piece portion 21 projecting forward from one end portion in the longitudinal direction of the second receiving surface portion 20. A projecting member insertion hole 21a penetrating vertically is formed in the projecting piece portion 21. One end side portion in the longitudinal direction of the reflector attachment portion 17 is bent rearward corresponding to the side portion 8 of the lamp housing 2.

[0027] The unit base portion 18 is located on the lower side of approximately the half portion on the side where the projecting piece portion 21 in the reflector attachment portion 17 is not provided.

[0028] A white or milky white reflector 22 that forms part of the clearance lamp unit 200 is attached to the base member 16 (see FIG. 3). The reflector 22 has a reflection holding portion 23 that extends along the reflector attachment portion 17, and the reflection holding portion 23 is formed in a concave shape that is open from the front to the side (see FIGS. 3 to 6).

[0029] The inner surface of the reflection holding portion 23 is formed as a reflection surface 23a. One end portion in the longitudinal direction of the reflection holding portion 23 is bent rearward corresponding to the reflector attachment portion 17. One end portion (tip portion) of the reflection holding portion 23 is provided as an insertion portion 24, and two outer projecting portions 24a projecting outward and two inner projecting portions 24b projecting inward are provided at intervals in the circumferential direction on the insertion portion 24.

[0030] One end portion in the longitudinal direction of the reflector 22 is provided as a composite function portion 25 where various functional portions are provided. The composite function portion 25 is provided with an engagement projection 26, a pressed portion 27, and a projecting portion 28 that respectively project from the reflection holding portion 23.

[0031] The engagement projection 26 and the pressed portion 27 respectively project downward from the reflection holding portion 23. An engagement claw 26a is provided at the tip portion of the engagement projection 26. The pressed portion 27 is located between the engagement projection 26 and the insertion portion 24 in the longitudinal direction of the reflector 22. A positioning hole 27a is formed in the pressed portion 27.

[0032] The projecting portion 28 projects upward from the reflection holding portion 23 and has an insertion recess 29 that is substantially open to the side. The rear opening edge of the insertion recess 29 is formed as a stopper edge 29a.

[0033] The reflector 22 is provided with a piece to be attached 30 that protrudes laterally from the rear end of the protrusion 28. An attachment hole 30a is formed in the piece to be attached 30.

[0034] The reflector 22 is positioned with respect to the base member 16 such that the engaging protrusion 26 is inserted into the protrusion member insertion hole 21a of the protruding piece 21 from above. The reflector 22 has the engaging claw 26a of the engaging protrusion 26 engaged with the lower opening edge of the protruding piece 21, and a predetermined portion is attached to the base member 16 by screwing or engagement or the like.

[0035] Further, with the insertion protrusion 9b of the member attachment portion 9 inserted through the protrusion insertion hole 14a of the bracket 12, the reflector 22 is attached to the member attachment portion 9 of the lamp housing 2 by inserting the insertion protrusion 9b through the attachment hole 30a and screwing an attachment screw to the insertion protrusion 9b. Accordingly, the reflector 22 is attached by being clamped together with the bracket 12 to the member attachment portion 9 of the lamp housing 2.

[0036] The reflector 22 holds a light guide 31 that forms part of the clearance lamp unit 200 (see FIGS. 4 to 6). The light guide 31 extends along the reflection holding portion 23 of the reflector 22 and is formed, for example, in a substantially round shaft shape. Note that the light guide 31 may be formed in a shape in which a part is bifurcated, or may be formed in a shape in which the bifurcated portions are joined vertically.

[0037] One end surface in the axial direction of the light guide 31 is formed as an incident surface 31a. An emission surface 31b is formed in a portion of the light guide 31 excluding both end portions in the longitudinal direction, and a diffusion step, for example, is formed in the emission surface 31b. The light guide 31 is provided with a light guide end portion 32 on the incident surface 31a side from the emission surface 31b. Note that both surfaces in the longitudinal direction of the light guide 31 may be formed as incident surfaces.

[0038] The light guide end portion 32 is a portion extending in a substantially front-rear direction, and a positioning piece portion 33 protruding upward is provided on the light guide end portion 32. The positioning piece portion 33 is formed in a rectangular shape, for example.

[0039] The light guide 31 is inserted into the insertion recess 29 from the front side by the positioning piece portion 33, and the trailing edge of the positioning piece portion 33 is brought into a state where it can engage with the stopper edge 29a. Therefore, by positioning the positioning piece portion 33 in contact with or close to the stopper edge 29a, the light guide 31 is positioned with respect to the reflector 22 in the longitudinal direction.

[0040] A shade 34 is attached to the composite function portion 25 of the reflector 22 and the light guide end portion 32 of the light guide 31 so as to cover both from both sides (see FIGS. 7 to 9).

[0041] The shade 34 has a first portion 35, a second portion 36, and a hinge portion 37, and the first portion 35 and the second portion 36 are foldable via the hinge portion 37.

[0042] The first portion 35 is a portion that covers the light guide end portion 32 of the light guide 31 from the outside, and has a substantially flat plate-shaped first base surface portion 38 provided separately above and below, a first holding portion 39 provided between the first base surface portions 38, a flange-shaped first positioning piece portion 40, and a light shielding portion 41 inserted into the member insertion hole 13a of the bracket 12.

[0043] Each portion of the first base surface portion 38 is positioned continuously above and below the first holding portion 39. Three pressing protrusions 38a are provided on the inner surface side of the first base surface portion 38. For example, one is provided above the first holding portion 39 and two are provided below the first holding portion 39, and the lower pressing protrusions 38a are spaced apart left and right. A positioning protrusion 38b is provided on the inner surface side of the first base surface portion 38 above the first holding portion 39.

[0044] The first holding portion 39 is formed in a concave shape with an opening on the side, and the inner surface is curved.

[0045] The first positioning piece portion 40 protrudes outward from one end of the first base surface portion 38 and one end of the first holding portion 39.

[0046] The light shielding portion 41 is provided on the opposite side of the first holding portion 39 with the first positioning piece portion 40 interposed therebetween, and is formed in a concave shape that is open laterally. Two positioning protrusions 41a are provided vertically spaced apart on the outer surface side of the light shielding portion 41.

[0047] Four pressing protrusions 35a are provided on the inner surface side of the first portion 35, and two pressing protrusions 35a are provided vertically spaced apart at one end of the first holding portion 39 and the light shielding portion 41, respectively.

[0048] The second portion 36 is a portion that covers the light guiding end portion 32 of the light guide 31 and the composite function portion 25 of the reflector 22 from the inside, and has a substantially flat plate-shaped second base surface portion 42 provided separately up and down, a second holding portion 43 provided at the central portion in the vertical direction of the second base surface portion 42, and a flange-shaped second positioning piece portion 44. The second portion 36 is provided on the opposite side of the first portion 35 with the hinge portion 37 interposed therebetween.

[0049] Each portion of the second base surface portion 42 is positioned continuously above and below the second holding portion 43.

[0050] The second positioning piece portion 44 protrudes outward from one end of the second base surface portion 42 and one end of the second holding portion 43.

[0051] A plurality of protruding portions 36a are provided on the inner surface side of the second portion 36. For example, two protruding portions 36a are provided vertically spaced apart at both ends of the second holding portion 43, respectively, and one is provided on the second base surface portion 42. A positioning pin 36b is provided on the inner surface side of the second portion 36, and the positioning pin 36b is provided at a position close to the hinge portion 37.

[0052] The shade 34 is provided with two first coupling portions 45 protruding from the first base surface portion 38 of the first portion 35 and two second coupling portions 46 protruding from the second base surface portion 42 of the second portion 36. The first coupling portion 45 and the second coupling portion 46 are respectively positioned at a substantially front-rear interval. The first coupling portion 45 is formed in a plate shape and is elastically deformable with respect to the first portion 35. An engagement hole 45a is formed in the first coupling portion 45. The second coupling portion 46 is formed in a protruding shape.

[0053] The first portion 35 and the second portion 36 of the shade 34 are folded back via the hinge portion 37 and are in a state of covering the composite function portion 25 of the reflector 22 and the light guide end portion 32 of the light guide 31 from both sides (see FIGS. 9 and 10). The second coupling portion 46 is engaged with the opening edge of the engagement hole 45a of the first coupling portion 45 of the shade 34, so that the first coupling portion 45 and the second coupling portion 46 are coupled and attached to the composite function portion 25 and the light guide end portion 32.

[0054] In a state where the composite function portion 25 and the light guide end portion 32 are covered by the shade 34, each part of the composite function portion 25 is pressed by the pressing protrusion 38a of the first portion 35 and the protruding portion 36a of the second portion 36 (see FIG. 11). At this time, the portion to be pressed 27 provided in the composite function portion 25 is pressed by the two pressing protrusions 38a. The positioning pin 36b of the second portion 36 is inserted into the positioning hole 27a of the portion to be pressed 27, and the shade 34 is positioned with respect to the composite function portion 25. Further, the positioning protrusion 38b of the first portion 35 is inserted into the insertion recess 29 of the reflector 22 and is engaged with the edge of the positioning piece portion 33 in the light guide end portion 32 where the positioning protrusion 38b is inserted into the insertion recess 29. Therefore, the shade 34 is positioned with respect to the light guide 31.

[0055] Also, in a state where the composite function part 25 and the light guide end part 32 are covered by the shade 34, a part of the light guide end part 32 of the light guide 31 is inserted into the first holding part 39, and the four pressing protrusions 35a of the shade 34 are pressed against the light guide end part 32 and the two inner protrusions 24b of the reflector 22 are pressed against the light guide end part 32. Therefore, the light guide end part 32 is held by both the shade 34 and the reflector 22 while being clamped from the opposite side.

[0056] At this time, a part of the composite function part 25 in the reflector 22 is inserted into the second holding part 43, the four protruding parts 36a are pressed against the reflection holding part 23, and one protruding part 36a is pressed against the protruding part 28. Therefore, the composite function part 25 is pressed by the second part 36 of the shade 34, and the light guide end part 32 of the light guide 31 and the composite function part 25 of the reflector 22 are held while being clamped from the opposite side by the first part 35 and the second part 36. At this time, the tip of the light guide end part 32 protrudes from the shade 34 and the reflector 22.

[0057] In a state where the light guide end part 32 and the composite function part 25 are held by the shade 34, the light shielding part 41 of the shade 34 and the insertion part 24 of the reflector 22 are inserted into the member insertion hole 13a of the bracket 12 from substantially the front (see FIGS. 11 and 12).

[0058] In a state where the light shielding part 41 and the insertion part 24 are inserted into the member insertion hole 13a, the two positioning protrusions 41a of the shade 34 and the outer protrusions 24a of the reflector 22 are pressed against the circumferential surface forming the member insertion hole 13a at positions separated in the circumferential direction. Therefore, the positioning in the radial direction of the light guide end part 32 with respect to the bracket 12 is performed, and the generation of play among the shade 34, the reflector 22, and the light guide 31 with respect to the bracket 12 is prevented, and the light guide 31 and the reflector 22 are held in a stable state by the bracket 12.

[0059] Also, when the light-shielding portion 41 and the insertion portion 24 are inserted into the member insertion hole 13a, the first positioning piece portion 40 and the second positioning piece portion 44 of the shade 34 are pressed against the opening edge of the member insertion hole 13a from substantially the front. Accordingly, positioning in the longitudinal direction (axial direction) of the light guide end portion 32 with respect to the bracket 12 is performed. Incidentally, the first positioning piece portion 40 and the second positioning piece portion 44 may be close to the front opening edge of the member insertion hole 13a.

[0060] As described above, by performing positioning in the radial direction of the light guide end portion 32 with respect to the bracket 12 and positioning in the longitudinal direction of the light guide end portion 32 with respect to the bracket 12, the position of the incident surface 31a of the light guide 31 with respect to the heat sink 10 attached to the bracket 12 is determined at an appropriate position. Accordingly, a good incident state of the light emitted from the light source 11 mounted on the heat sink 10 to the light guide 31 is ensured.

[0061] Further, although the pressing protrusion 35a of the shade 34 and the inner protrusion 24b of the reflector 22 are pressed against the light guide end portion 32, since the light guide end portion 32 is sandwiched between the shade 34 and the reflector 22, the pressing protrusion 35a and the inner protrusion 24b do not slide with respect to the outer peripheral surface of the light guide end portion 32 when the light-shielding portion 41 and the insertion portion 24 are inserted into the member insertion hole 13a. Accordingly, it is possible to prevent the light guide end portion 32 from being damaged.

[0062] As described above, by pressing the first positioning piece portion 40 and the second positioning piece portion 44 of the shade 34 against the opening edge of the member insertion hole 13a, the gap between the shade 34 and the member insertion hole 13a and the gap between the reflector 22 and the member insertion hole 13a are closed from substantially the front by the first positioning piece portion 40 and the second positioning piece portion 44.

[0063] In a state where the light guide 31 is held by the reflector 22 and the shade 34, an inner lens (not shown) is disposed in front of the light guide 31. The inner lens has a function of diffusing light and a function of emitting light in a predetermined direction. For example, the inner lens is attached to the reflector 22 by screwing or engaging. In the vehicle lamp 1, for example, in a state where the light guide 31 is held by the reflector 22 and the shade 34 and the inner lens is attached, as described above, the light shielding portion 41 of the shade 34 and the insertion portion 24 of the reflector 22 are inserted into the member insertion hole 13a of the bracket 12, and the reflector 22 is attached to the base member 16.

[0064] In addition, an extension (not shown) for shielding predetermined parts is disposed in the lamp chamber 5. The extension is disposed, for example, on the center side of the vehicle in the vehicle's left - right direction from the portion where the shade 34 exists.

[0065] In the vehicle lamp 1 configured as described above, when light is emitted from the light source 11, the emitted light is incident on the light guide 31 from the incident surface 31a. The light incident on the light guide 31 is guided longitudinally inside the light guide 31 and emitted from the emission surface 31b. At this time, there is also light (leakage light) emitted from the light guide 31 toward the reflector 22 side, but the light emitted to the reflector 22 side is reflected by the reflection surface 23a of the reflector 22 and incident on the light guide 31 again and emitted from the light guide 31. Therefore, effective utilization of light is achieved.

[0066] The light emitted from the light guide 31 is controlled by the inner lens, transmitted through the cover 3, and irradiated as uniform light in a predetermined direction.

[0067] When light is emitted from the light source 11, there is a possibility that a part of the light is not incident from the incident surface 31a and light leakage occurs. Also, there is a possibility that leakage light is emitted from the outer peripheral surface of the light - guiding end portion 32 of the light incident from the incident surface 31a.

[0068] However, in the vehicle lamp 1, since the light guide end portion 32 is covered by the shade 34, the light emitted from the light source 11 is blocked by the shade 34, preventing the occurrence of light leakage. In particular, although the light traveling forward from the member insertion hole 13a of the bracket 12 may become leakage light, since the light shielding portion 41 of the shade 34 and the insertion portion 24 of the reflector 22 are inserted into the member insertion hole 13a in a fitted state, the occurrence of leakage light from the member insertion hole 13a is suppressed. Also, even when a gap occurs between the peripheral surface forming the member insertion hole 13a and the light shielding portion 41 or a gap occurs between the peripheral surface forming the member insertion hole 13a and the insertion portion 24, since the member insertion hole 13a is closed from the front side by the first positioning piece portion 40 and the second positioning piece portion 44 of the shade 34, the occurrence of leakage light from the member insertion hole 13a is prevented even in this case.

[0069] In addition, the vehicle lamp 1 has a headlamp unit 100 and a clearance lamp unit 200. When the vehicle lamp 1 is visually recognized from the outside, there is a possibility that the appearance may deteriorate if a part of the composite function portion 25 of the white or milky white reflector 22 is visually recognized between the headlamp unit 100 and the clearance lamp unit 200. However, in the vehicle lamp 1, since the composite function portion 25 of the reflector 22 is covered by the shade 34, the composite function portion 25 cannot be visually recognized between the headlamp unit 100 and the clearance lamp unit 200, and the appearance can be improved when the vehicle lamp 1 is visually recognized from the outside.

[0070] As described above, the vehicle lamp 1 has a shade 34 in which the first portion 35 and the second portion 36 can be folded back via the hinge portion 37. The light guide 31 is provided with a portion on the incident surface 31a side rather than the emission surface 31b as the light guide end portion 32. The shade 34 is arranged in a state of sandwiching the light guide end portion 32 and a part of the reflector 22 between the folded-back first portion 35 and the second portion 36.

[0071] Therefore, since the light guide end portion 32 between the incident surface 31a and the exit surface 31b is sandwiched from both sides by the folded first portion 35 and the second portion 36, when the base member 16 is arranged, there is no need to provide a shade attachment portion or an attachment portion to the lamp housing 2 on the base member 16, the base member 16 can be miniaturized, and light leakage from the shade 34 can be prevented while achieving weight reduction.

[0072] In particular, when a prevention portion for preventing light leakage from the light guide 31 is provided on the base member 16, since the prevention portion is likely to be structured to prevent light leakage from the light guide 31 at a position farther from the shade 34, accordingly, the size of the base member 16 increases and the base member 16 is likely to become heavier. Therefore, by preventing the occurrence of light leakage by a structure that covers the light guide end portion 32 like the shade 34, it is possible to prevent the occurrence of light leakage while significantly reducing the weight of the vehicle lamp 1.

[0073] Further, the shade 34 is provided with a first coupling portion 45 continuous with the first portion 35 and a second coupling portion 46 continuous with the second portion 36, and the shade 34 is arranged in a state where the first coupling portion 45 and the second coupling portion 46 are coupled.

[0074] Therefore, since the light guide end portion 32 is sandwiched by the first portion 35 and the second portion 36 in a state where the first coupling portion 45 and the second coupling portion 46 are coupled, a stable shielding state of the light guide end portion 32 by the shade 34 can be ensured. Further, since there is no need to provide an attachment portion of the shade 34 to other members, for example, an attachment portion to the reflector 22 or the lamp housing 2, to ensure a stable arrangement state of the shade 34, the shade 34 can be miniaturized.

[0075] Further, a pressed part 27 having a positioning hole 27a is provided in the reflector 22, a pressing projection 38a for pressing the pressed part 27 is provided in the first part 35, a positioning pin 36b to be inserted into the positioning hole 27a is provided in the second part 36, and when the first part 35 and the second part 36 are folded back, the positioning pin 36b is inserted into the positioning hole 27a.

[0076] Therefore, when the first part 35 and the second part 36 are folded back, the pressed part 27 is pressed by the pressing projection 38a and the positioning pin 36b is inserted into the positioning hole 27a, so that the shade 34 is positioned with respect to the reflector 22. Thus, the insertion of the positioning pin 36b into the positioning hole 27a can be performed smoothly and reliably.

[0077] Furthermore, a part of the light guide end 32 is inserted into the member insertion hole 13a of the bracket 12, and a light shielding part 41 inserted into the gap between the light guide end 32 and the member insertion hole 13a is provided in the shade 34.

[0078] Therefore, since the light shielding part 41 is positioned in the gap between the member insertion hole 13a and the light guide end 32, the light leakage from between the member insertion hole 13a and the light guide end 32 can be prevented by the light shielding part 41.

[0079] In addition, a pressing projection 35a pressed against the outer peripheral surface of the light guide end 32 and a positioning projection 41a pressed against the peripheral surface forming the member insertion hole 13a are provided on the light shielding part 41, and the pressing projection 35a and the positioning projection 41a are positioned on opposite surface sides in the thickness direction of the light shielding part 41.

[0080] Therefore, since both the pressing projection 35a and the positioning projection 41a are provided on the light shielding part 41, the formation space for both is reduced, and the shade 34 can be downsized. Also, the positioning of the shade 34 with respect to the bracket 12 of the light guide 31 can be performed simultaneously.

[0081] In addition, the shade 34 is provided with a first positioning piece portion 40 and a second positioning piece portion 44, and when the light-shielding portion 41 is inserted into the member insertion hole 13a, the first positioning piece portion 40 and the second positioning piece portion 44 are pressed against the opening edge of the member insertion hole 13a.

[0082] Therefore, when the first positioning piece portion 40 and the second positioning piece portion 44 are pressed against the opening edge of the member insertion hole 13a, the positioning of the shade 34 with respect to the bracket 12 in the insertion direction into the member insertion hole 13a is performed, so that the positioning of the shade 34 with respect to the bracket 12 can be easily and surely performed. In addition, since the member insertion hole 13a is blocked by the first positioning piece portion 40 and the second positioning piece portion 44, the generation of leakage light from the member insertion hole 13a can be prevented.

Explanation of Signs

[0083] 1 Vehicle lamp 2 Lamp housing 12 Bracket 13a Member insertion hole 22 Reflector 23a Reflective surface 27 Pressed portion 27a Positioning hole 31 Light guide 31a Incident surface 31b Exit surface 32 Light guide end portion 34 Shade 35 First portion 35a Pressing protrusion 36 Second portion 36b Positioning pin 37 Hinge portion 38a Pressing protrusion 38b Positioning protrusion 40 First positioning piece portion 41 Light-shielding portion 44 Second positioning piece portion 45 First coupling portion 46 Second coupling portion

Claims

1. A light guide body extending in a predetermined direction, at least one end face of which is formed as an incident surface and a part of the outer peripheral surface of which is formed as an emission surface; A reflector having a reflecting surface, the reflecting surface being positioned to face a portion of the outer peripheral surface of the light guide body other than the emission surface; A shade having a first portion, a second portion, and a hinge portion, the first portion and the second portion being foldable via the hinge portion; The light guide body is provided with a light guiding end portion on a portion closer to the incident surface than the emission surface; The shade is arranged in a state where the folded first portion and second portion sandwich the light guiding end portion and a part of the reflector; A vehicle lamp.

2. The shade is provided with a first coupling portion continuous with the first portion and a second coupling portion continuous with the second portion; The shade is arranged in a state where the first coupling portion and the second coupling portion are coupled; The vehicle lamp according to Claim 1.

3. A pressed portion having a positioning hole is provided on the reflector; A pressing protrusion for pressing the pressed portion is provided on the first portion; A positioning pin to be inserted into the positioning hole is provided on the second portion; When the first portion and the second portion are folded, the positioning pin is inserted into the positioning hole; The vehicle lamp according to Claim 2.

4. A bracket attached to the lamp housing and having a member insertion hole is provided; A part of the light guiding end portion is inserted through the member insertion hole; The shade is provided with a light shielding portion inserted into a gap between the light guiding end portion and the member insertion hole; The vehicle lamp according to Claim 1.

5. The light shielding portion is provided with a pressing protrusion pressed against the outer peripheral surface of the light guiding end portion and a positioning protrusion pressed against the peripheral surface forming the member insertion hole; The pressing protrusion and the positioning protrusion are positioned on opposite surface sides in the thickness direction of the light shielding portion; The vehicle lamp according to Claim 4.

6. The shade is provided with a positioning piece portion; In a state where the light shielding portion is inserted through the member insertion hole, the positioning piece portion is pressed against the opening edge of the member insertion hole; The vehicle lamp according to Claim 4 or Claim 5.

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