JP6139576B2 - Vehicle lamp - Google Patents

Description

  The present invention relates to a vehicle lamp using a long light guide member.

  As a lamp, there has been considered a lamp that emits light uniformly in a linear shape using a long light guide member (see, for example, Patent Document 1). In such a lamp, for example, as a configuration in which a long light guide member and a light source that emits light toward the light guide member are housed in a housing member such as a housing, can do. In this vehicle lamp, by providing it inside or outside the vehicle, it is possible to decorate the inside or outside of the vehicle, or to illuminate the hands or feet inside or outside the vehicle.

JP 2013-57924 A

  By the way, in the above-mentioned vehicle lamp, since the long light guide member is housed in the housing member, the housing member intermittently contacts the light guide member due to slight vibration generated in the vehicle. There is a risk of rattling noise. Here, it is conceivable to provide a place where the light guide member is fitted into the housing member, but due to the tolerance (allowable error) between the housing member and the light guide member, there is a gap between the place where the light guide member is fitted and the light guide member. It is difficult to lose.

  The present invention has been made in view of the above circumstances, and provides a vehicle lamp that can suppress rattling noise caused by vibration even when the long light guide member is housed in the housing member. The purpose is to provide.

  The vehicle lamp according to claim 1, wherein the light guide member is a long light guide member, a light source provided opposite to an incident end face of the light guide member, the light guide member and the light source member to accommodate the light source. A long housing member along the longitudinal direction, and the light guide member is paired in the orthogonal direction perpendicular to the longitudinal direction over the entire length seen in the longitudinal direction. A positioning projection that protrudes in the direction is provided, and the support member on which the pair of positioning projections are placed in a state in which the light guide member is accommodated is seen in the longitudinal direction as a pair in the orthogonal direction. It is provided over the entire length.

  Each positioning protrusion of the light guide member may be provided continuously over the entire length when viewed in the longitudinal direction.

  The support protrusions of the housing member may be provided continuously over the entire length when viewed in the longitudinal direction.

  The light guide member may be configured to be line symmetric with respect to a line orthogonal to a midpoint of a straight line connecting the pair of positioning protrusions when viewed in a cross section orthogonal to the longitudinal direction.

  The light guide member includes a light guide main body, and at least one of a diffusion layer that is provided outside and diffuses light and a reflection layer that reflects light, and each of the positioning protrusions includes the diffusion layer or the The reflective layer may be formed by partially inflating.

  The light guide member includes a light guide main body, a diffusion layer provided on the outer side for diffusing light, and a reflection layer provided on the outer side for reflecting light, and the positioning protrusions are configured to reflect the reflection. The layer can be formed by partially inflating.

  The light guide member has a light emission surface that is positioned in a direction perpendicular to the longitudinal direction and emits light, and the positioning protrusions are located near the light emission surface in the light guide member. It is good also as a structure which makes a pair in the said orthogonal direction, pinching | interposing an output surface.

  Each positioning protrusion of the light guide member may be formed to protrude in a curved shape when viewed in a cross section orthogonal to the longitudinal direction.

  Each of the support protrusions of the housing member may be formed to protrude in a curved shape when viewed in a cross section orthogonal to the longitudinal direction.

  According to the vehicle lamp of the present invention, rattling noise caused by vibration can be suppressed even when the long light guide member is housed in the housing member.

  When each of the positioning protrusions of the light guide member is continuously provided over the entire length when viewed in the longitudinal direction, the positioning protrusions are inserted when the light guide member is inserted from one end of the housing member. It is possible to suppress catching on the corresponding support protrusion, and it is possible to assemble more easily.

  When each supporting protrusion of the housing member is configured to be continuously provided over the entire length when viewed in the longitudinal direction, the positioning protrusion corresponds to the support member when the light guide member is inserted from one end of the housing member. It is possible to suppress hooking on the protrusion, and it is possible to assemble more easily.

  When the light guide member is configured to be line symmetric with respect to a line orthogonal to a midpoint of a straight line connecting the pair of positioning protrusions when viewed in a cross section orthogonal to the longitudinal direction, a pair is formed in the orthogonal direction. The pair of positioning protrusions to be placed can be placed on the pair of support protrusions without deviation, and the housing member can more appropriately support the light guide member.

  The light guide member includes a light guide main body, and at least one of a diffusion layer that is provided outside and diffuses light and a reflection layer that reflects light, and each of the positioning protrusions includes the diffusion layer or the If the reflective layer is formed so as to be partially expanded, both positioning projections can be easily formed.

  The light guide member includes a light guide main body, a diffusion layer provided on the outer side for diffusing light, and a reflection layer provided on the outer side for reflecting light, and the positioning protrusions are configured to reflect the reflection. When there is a configuration in which the layer is partially expanded, both positioning projections can be easily formed.

  The light guide member has a light emission surface that is positioned in a direction perpendicular to the longitudinal direction and emits light, and the positioning protrusions are located near the light emission surface in the light guide member. When the light emitting surface is configured to be paired in the orthogonal direction while sandwiching the light emitting surface, the light emitting surface can be efficiently suppressed from swaying with respect to the housing member, and light is generated even when vibration occurs. It is possible to prevent the light emitted from the emission surface from fluctuating.

  When each of the positioning protrusions of the light guide member is formed to protrude in a curved shape when viewed in a cross section orthogonal to the longitudinal direction, the pair of positioning protrusions are placed on the pair of supporting protrusions. As a result, the light guide member can be supported by the housing member so as to be sandwiched in the orthogonal direction, and the occurrence of rattling noise due to vibration can be more effectively suppressed.

  When each of the support protrusions of the housing member is formed so as to protrude in a curved shape when viewed in a cross section orthogonal to the longitudinal direction, the pair of positioning protrusions are simply placed on the pair of support protrusions. The light guide member can be supported by the housing member so as to be sandwiched in the orthogonal direction, and it is possible to more effectively suppress the generation of rattling noise due to vibration.

It is explanatory drawing which shows a mode that the vehicle lamp 10 as an example which concerns on this invention was used for the vehicle 50. FIG. It is explanatory drawing which shows the vehicle lamp. It is explanatory drawing which shows a mode that the vehicle lamp 10 was cut | disconnected in the cross section obtained along the II line | wire shown in FIG. It is explanatory drawing which shows a mode that the vehicle lamp 10 was cut | disconnected in the cross section obtained along the II-II line | wire shown in FIG. FIG. 5 is an explanatory view showing the housing member 11 that supports the light guide member 12 in the vehicle lamp 10 in the same cross section as FIG. 4. It is explanatory drawing which shows the light guide member 12 provided in the vehicle lamp 10. FIG. It is explanatory drawing which shows a mode that the light guide member 12 was cut | disconnected in the cross section obtained along the III-III line | wire shown in FIG. It is explanatory drawing which shows typically a mode that the light guide member 12 is formed by extrusion molding. It is explanatory drawing which shows typically a mode that the light guide member 12 is shape | molded through the 1st metal mold | die 44, the 2nd metal mold | die 45, and the 3rd metal mold | die 46 in the cross section orthogonal to the width direction Dw. It is explanatory drawing shown in the cross section obtained along the IV-IV line | wire which shows a mode that the light guide main-body part 36 is shape | molded by the 1st metal mold | die 44. FIG. It is explanatory drawing shown in the cross section obtained along the VV line | wire shown in FIG. 9 that a diffusion layer 37 is shape | molded by the 2nd metal mold | die 45 outside the light guide main-body part 36. FIG. It is explanatory drawing shown in the cross section obtained along the VI-VI line | wire which shows a mode that the reflective layer 38 was shape | molded by the 3rd metal mold | die 46 on the outward side of the diffused layer 37. FIG.

  Embodiments of a vehicle lamp according to the present invention will be described below with reference to the drawings.

  An embodiment of a vehicle lamp 10 as an example of a vehicle lamp according to the present invention will be described with reference to FIGS. 4, 7, and 9 to 12, the diffusion layer 37, the reflective layer 38, and the shock absorbing portion 39 are emphasized in order to facilitate understanding of the configuration of the light guide member 12. It does not necessarily match the actual configuration. 8 and 9 schematically show the extrusion molding machine 41, the take-up machine 42, the cutting machine 43, the first mold 44, the second mold 45, and the third mold 46, which are not necessarily actual. It is not consistent with the configuration.

  The vehicle lamp 10 is used for vehicles such as automobiles and trains (vehicles), vehicles such as playground equipment provided in amusement parks, etc., and decorates the inside and outside of the vehicle, and inside and outside the vehicle. Illuminate your hands and feet. In this embodiment, as shown in FIG. 1, the vehicle lamp 10 is embedded in the upper edge of a wall portion on both sides of a boarding space in a vehicle 50 provided in an amusement park as an example of a vehicle. And decorates the vehicle 50 (the upper edges of both walls). Since both the vehicle lamps 10 have substantially the same configuration, the configuration will be described simply as the vehicle lamp 10.

  As shown in FIGS. 2 to 4, the vehicular lamp 10 has a long light guide member 12 and a light source 13 (see FIG. 3) housed in a housing member 11 that has a long box shape as a whole. Composed. The housing member 11 is a housing that forms the outer shape of the vehicle lamp 10, and is provided with an emission opening 29 that has a long oval shape on one side surface (upper wall portion 21 described later). The emission opening 29 emits the light emitted from the light source 13 and guided by the light guide member 12 to the outside of the housing member 11 as described later. For this reason, in the vehicle lamp 10, the long exit opening 29 can be illuminated, and the light can be decorated or illuminated. In the following description, in the vehicle lamp 10 (the housing member 11 and the light guide member 12), the longitudinal direction is the long direction Dl, and the direction in which the emission opening 29 is provided with respect to the light guide member 12 is the vertical direction Dv. A direction perpendicular to the longitudinal direction Dl and the vertical direction Dv is defined as a width direction Dw.

  In this embodiment, the housing member 11 is formed of an aluminum material of a metal material so as to form a casing forming an outer shape, and has a long box shape as a whole. As shown in FIG. 4, the housing member 11 has a shape that follows the outer shape of the light guide member 12 when viewed in a cross section orthogonal to the longitudinal direction Dl, and is symmetrical with respect to a straight line that passes through the center and extends in the vertical direction Dv. Has been. In the housing member 11, as shown in FIG. 5, the upper wall portion 21 located on the upper side in the vertical direction Dv has a flat plate shape extending in the width direction Dw, and the both side wall portions 22 located in the width direction Dw are formed in the vertical direction Dv. A flat plate shape extending in the vertical direction Dv while narrowing the interval toward the lower side. And in the accommodating member 11, the lower wall part 23 located below the up-down direction Dv is curving so that it may bulge outside, and it is set as the plate shape which bridge | crosses the lower end of the both-sides wall part 22. FIG. In the housing member 11, the positional relationship among the upper wall portion 21, the both side wall portions 22, and the lower wall portion 23 is the same over the entire length, that is, the same regardless of the difference in position as viewed in the longitudinal direction Dl. (See FIG. 2). For this reason, the accommodation member 11 has the largest interval in the width direction Dw on the upper side when viewed in the up-down direction Dv, and the interval in the width direction Dw gradually becomes narrower toward the lower side.

  In the housing member 11, as shown in FIG. 3, a light source housing portion 24 and a light guide housing portion 25 are continuously formed inward, and an opening / closing wall portion 26 is opened and closed at one end on the light source housing portion 24 side. Provided possible. The light source accommodating part 24 is a place for accommodating the light source 13 and a lighting driving part 14 to be described later, and is a box-shaped space formed by the above-described upper wall part 21, both side wall parts 22 and the lower wall part 23. . The light guide housing portion 25 is a place for housing the light guide member 12, and the light guide member 12 is inserted from the opened opening / closing wall portion 26 side, and the inserted light guide member 12 is appropriately supported. It is possible to do.

  In the light guide housing portion 25, as shown in FIGS. 3 to 5, a pair of support protrusions 27 and six auxiliary protrusions 28 are provided over the entire length viewed in the longitudinal direction Dl. The total length viewed in the long direction Dl does not mean strictly from one end of the light guide housing portion 25 to the other end as viewed in the long direction Dl. This refers to the interval from the vicinity of one end of the housing portion 25 to the vicinity of the other end of the light guide housing portion 25. In the light guide housing portion 25 (housing member 11) of this embodiment, a pair of support projections 27 and six auxiliary projections 28 are provided continuously from one end to the other end.

  As shown in FIG. 5, the support protrusions 27 are provided in the vicinity of the upper wall portion 21, that is, at the upper portion in the vertical direction Dv in the side wall portions 22 that make a pair in the width direction Dw. The support protrusions 27 are formed so as to protrude from the side wall portions 22 toward the inside of the light guide housing portion 25, that is, in a direction approaching each other when viewed in the width direction Dw. Each support protrusion 27 is curved inwardly as viewed in a cross section perpendicular to the longitudinal direction Dl and protrudes in a curved shape as viewed in the cross section. For this reason, the support protrusions 27 are provided in pairs in the width direction Dw, and the width direction Dw is an orthogonal direction orthogonal to the longitudinal direction Dl. For this reason, both the support protrusions 27 partially reduce the inner diameter dimension in the width direction Dw of the light guide housing portion 25 in the vicinity of the position where the distance in the width direction Dw is the largest in the light guide housing portion 25. . Both support protrusions 27 have a distance between their tips larger than the dimension in the width direction Dw excluding both positioning protrusions 35 described later in the light guide member 12, and the width direction Dw including both positioning protrusions 35 in the light guide member 12. It is made smaller than the dimension in (refer FIG. 4). Here, the dimension in the space | interval of the front-end | tip is set in consideration of the tolerance in the accommodating member 11 and the light guide member 12 (including the positioning protrusion 35).

  The upper two of the six auxiliary projections 28 are provided so as to bridge the upper wall portion 21 and the both side wall portions 22 and accommodate the light guide while curving the outer shape seen in a cross section orthogonal to the longitudinal direction Dl. It protrudes toward the inside of the portion 25, that is, it protrudes in a curved shape when viewed in cross section. The two auxiliary projections 28 are projected inside the light guide housing portion 25 so as to approach the support projections 27, so that the interval between the support projections 27 is larger than the interval between the upper wall portion 21 and the support projections 27. Make it smaller.

  Two of the remaining four auxiliary projections 28 at the middle height are provided in the vicinity of the lower wall portion 23, that is, in the lower portion of the side wall portions 22 in the vertical direction Dv, and are seen in a cross section orthogonal to the longitudinal direction Dl. It projects toward the inside of the light guide housing portion 25 while curving its outer shape, that is, it projects in a curved shape when viewed in cross section. The two auxiliary projections 28 are spaced apart from each other in the width direction Dw of the lower portion of the light guide member 12 as viewed in the vertical direction Dv while taking into account the tolerance in the housing member 11 and the light guide member 12. Enlarge. For this reason, the two auxiliary projections 28 have their tips positioned outside the outer peripheral surface of the lower portion of the light guide member 12 accommodated in the light guide accommodating portion 25.

  The remaining two auxiliary projections 28 on the lower side are provided on the lower wall portion 23 and protrude toward the inside of the light guide housing portion 25 while curving the outer shape seen in a cross section perpendicular to the longitudinal direction D1, that is, It is formed so as to protrude in a curved shape when viewed in cross section. The two auxiliary projections 28 are viewed in the vertical direction Dv in the light guide member 12 as will be described later, with the tips of the two auxiliary projections 28 being accommodated in the light guide accommodation portion 25 in consideration of tolerances in the accommodation member 11 and the light guide member 12. It is located outside the outer peripheral surface of the lower part.

  The pair of supporting protrusions 27 and the six auxiliary protrusions 28 have the same configuration, that is, the same position, shape, and dimensions regardless of the difference in position as viewed in the longitudinal direction Dl. For this reason, the light guide housing portion 25 of the housing member 11 is formed of the upper wall portion 21, the side wall portions 22, and the lower wall portion 23 over the entire length, and the pair of support projections 27 and the six auxiliary projections 28 are formed over the entire length. Are provided continuously. And in the light guide accommodating part 25, the output opening 29 is provided through the upper wall part 21 in the up-down direction Dv. The emission opening 29 is located in the center of the upper wall portion 21 as viewed in the width direction Dw and is located in a predetermined range as viewed in the longitudinal direction Dl (see FIGS. 2 and 3).

  As shown in FIG. 3, the light source 13 is provided in a light source accommodation portion 24 provided on one end side of the accommodation member 11, that is, on the opening / closing wall portion 26 side. As described above, the light source accommodating portion 24 is formed by the upper wall portion 21, the side wall portions 22, and the lower wall portion 23, and is not provided with a pair of support protrusions 27 and six auxiliary protrusions 28. The light source 13 forms a light source in the vehicle lamp 10 and is a self-emitting semiconductor type light emitting unit such as an LED or an organic EL (OLED). In this embodiment, the light source 13 is configured by using an LED. The light source 13 is provided by being connected to a lighting drive unit 14 provided with a circuit for appropriately driving (lighting and extinguishing), a connector for supplying electric power, and the like. The lighting drive unit 14 is attached to one end of the light guide member 12 in a state where the light source 13 is connected, thereby causing the light source 13 to face an incident end surface 31 (to be described later) of the light guide member 12 in the longitudinal direction Dl. Attachment of the lighting drive unit 14 and the light guide member 12 (one end thereof) may be performed by adhesion or may be performed by welding. In this embodiment, the lighting drive unit 14 is attached to one end of the light guide member 12 with a screw member. The lighting drive unit 14 is fixed to the light source housing unit 24 and appropriately turns on and off the connected light source 13.

  As shown in FIG. 6, the light guide member 12 has a long rod shape as a whole, has the same shape over the entire length extending in the longitudinal direction Dl, and both ends viewed in the longitudinal direction Dl are long. The flat surface is orthogonal to the scale direction Dl. The light guide member 12 has a flat surface on one end side as an incident end surface 31 facing the light source 13, and a light-shielding film or a reflective film is appropriately provided on the flat surface on the other end side. As shown in FIG. 7, the light guide member 12 is symmetrical with respect to a straight line that passes through the center and extends in the vertical direction Dv. In the light guide member 12, the upper wall surface 32 positioned on the upper side in the vertical direction Dv is a flat surface extending in the width direction Dw, and the both side wall surfaces 33 positioned in the width direction Dw are moved downwardly in the vertical direction Dv. Thus, the flat surface extends in the vertical direction Dv while narrowing the interval. In the light guide member 12, the lower wall surface 34 positioned below the vertical direction Dv is curved so as to bulge outward, and is a curved surface that bridges the lower ends of both wall surfaces 33. In the light guide member 12, the positional relationship among the upper wall surface 32, the side wall surfaces 33, and the lower wall surface 34 is the same over the entire length, that is, the same regardless of the difference in the position viewed in the longitudinal direction Dl (see FIG. 6). For this reason, the light guide member 12 has the largest dimension in the width direction Dw on the upper side when viewed in the vertical direction Dv, and gradually decreases the dimension in the width direction Dw toward the lower side. The lower end is a curved surface.

  And in the light guide member 12, the positioning protrusion 35 which protrudes in the width direction Dw by making a pair from the outer peripheral surface is provided over the full length seen in the elongate direction Dl. The term “over the entire length as viewed in the long direction Dl” does not mean strictly from one end of the light guide member 12 to the other end as viewed in the long direction Dl. 12 refers to the interval from the vicinity of one end of 12 to the vicinity of the other end of the light guide member 12. In the light guide member 12 of the present embodiment, a pair of positioning protrusions 35 are provided continuously from one end to the other end (see FIG. 6). Both positioning protrusions 35 are provided in the vicinity of the upper wall surface 32, that is, at the upper end in the vertical direction Dv on both side wall surfaces 33, and are long from the both side wall surfaces 33 that form a pair in the width direction Dw toward the outside in the width direction Dw. The outer shape seen from the cross section perpendicular to the scale direction D1 is projected while curving, that is, it is formed to project in a curved shape when seen in the cross section. For this reason, the positioning protrusions 35 are provided in pairs in the width direction Dw, and the width direction Dw is an orthogonal direction orthogonal to the longitudinal direction Dl. Accordingly, the positioning protrusions 35 partially increase the dimension in the width direction Dw of the light guide member 12 in the vicinity of the position where the dimension in the width direction Dw is the largest in the light guide member 12. Yes. When the positioning protrusions 35 are housed in the light guide housing portion 25 of the housing member 11, the positions of the tips are viewed in the width direction Dw from the positions of the tips of the pair of support projections 27 in the light guide housing portion 25. It is assumed to be located outside (see FIG. 4). Here, the dimension in the space | interval of the front-end | tip is set in consideration of the tolerance in the accommodating member 11 and the light guide member 12 (including the positioning protrusion 35). For this reason, as described above, the light guide member 12 is line-symmetric with respect to a straight line that passes through the center and extends in the vertical direction Dv. Therefore, when viewed in a cross section orthogonal to the longitudinal direction Dl, Are symmetrical with respect to a line perpendicular to the midpoint of the line connecting the two.

  The light guide member 12 is configured by providing a diffusion layer 37 and a reflection layer 38 outside the light guide main body 36. The light guide body 36 is made of a glass material or a resin material. As the resin material, polycarbonate (PC), acrylic resin, cyclic olefin polymer (PCO) or the like can be used. In this embodiment, polymethyl methacrylate resin (PMMA (hereinafter referred to as acrylic resin)) is used. . The light guide body 36 forms an upper wall surface 32, both side wall surfaces 33, and a lower wall surface 34 when viewed in a cross section orthogonal to the longitudinal direction Dl, and both ends viewed in the longitudinal direction Dl are orthogonal to the longitudinal direction Dl. (Refer to FIG. 6).

  The diffusion layer 37 is provided so as to cover the entire outer surface of the light guide main body 36 except for the flat surfaces at both ends. The diffusion layer 37 diffuses light that travels outward from the upper wall surface 32, the both side wall surfaces 33, and the lower wall surface 34 among the light guided into the light guide main body 36. The diffusion layer 37 diffuses the light that has traveled on itself, and may be provided by adhesion, for example, by vapor deposition or painting, as long as it can be provided on the outer peripheral surface of the light guide body 36. It may be provided. In this embodiment, the diffusion layer 37 uses, as an example, a fluorine-based resin to which light scattering particles are added, and is provided on the outer peripheral surface of the light guide main body 36 by extrusion molding as will be described later. As the light scattering particles, for example, a metal material such as titanium dioxide or non-metallic inorganic particles can be used. The diffusion layer 37 is made translucent milky white by adjusting the amount of light scattering particles to be added (ratio in the whole), and has a function of diffusing light. The diffusion layer 37 may be formed by providing light scattering particles in another resin material, and is not limited to the configuration of this embodiment.

  The reflection layer 38 is provided so as to cover the entire surface excluding the portion corresponding to the upper wall surface 32 of the surface on which the diffusion layer 37 is provided on the outer peripheral surface of the light guide main body 36. The reflection layer 38 transmits light, which is guided into the light guide body 36 and diffused by the diffusion layer 37, from the diffusion layer 37 to the diffusion layer 37, that is, the light guide body 36. Reflect toward you. The reflective layer 38 reflects light that has traveled on itself, and can be provided by adhesion, as long as it can be provided outside the diffusion layer 37, for example, by vapor deposition or painting. Good. In this embodiment, as an example, the reflective layer 38 is made of a fluorine-based resin to which light scattering particles are added, and is provided outside the diffusion layer 37 by extrusion as described later. Yes. The reflective layer 38 is milky white by adjusting the amount (ratio in the whole) of the light scattering particles to be added and has a function of reflecting light. The reflective layer 38 may be formed by providing light scattering particles in another resin material, and is not limited to the configuration of this embodiment.

  And in the light guide member 12 of a present Example, a pair of positioning protrusion 35 is formed of the reflective layer 38 located in the outermost side. That is, in the light guide member 12, the light guide main body portion 36 forms flat both side wall surfaces 33, and the diffusion layer 37 is flat along both side wall surfaces 33, and the reflection layer 38 is partially formed outside the diffusion layer 37. The positioning protrusions 35 are formed by expanding the thickness (increasing the thickness dimension).

  In the light guide member 12 having such a configuration, as shown in FIG. 6, when light is incident from an incident end surface 31 that is a flat surface at one end, the outer peripheral surface (boundary surface) of the light guide main body 36 basically. By utilizing the reflection (total reflection) of the light, the light is advanced in the longitudinal direction Dl within the light guide main body 36. In the light guide member 12, a part of the light traveling in the light guide main body 36 travels from the both side wall surfaces 33 or the lower wall surface 34 to the diffusion layer 37 and is diffused, and the light traveling outward of the light is reflected from the reflection layer. The light is reflected by 38 and returns to the light guide main body 36 through the diffusion layer 37. The light is emitted from the upper wall surface 32 to the diffusion layer 37 while proceeding in the longitudinal direction Dl, and is emitted to the outside of the light guide member 12 while being diffused. For this reason, in the light guide member 12, the upper wall surface 32 on which the reflective layer 38 is not provided functions as a light output surface, and the light guide action and the diffusion layer by the light guide main body portion 36 basically with the vertical direction Dv as the output direction. The light is emitted with substantially uniform brightness over the entire length by the diffusing action of 37.

  Next, how the light guide member 12 having such a configuration is formed will be described with reference to FIGS. In the present embodiment, the light guide member 12 having the above-described configuration is formed by extrusion molding. In this extrusion molding, as shown in FIG. 8, an extrusion molding machine 41, a take-up machine 42 and a cutting machine 43 are used. The extrusion molding machine 41 includes a first mold 44, a second mold 45, and a third molding machine. A mold 46 is provided. As shown in FIGS. 8 and 9, the extrusion molding machine 41 melts the acrylic resin put in the first hopper 47 and pushes the acrylic resin to the first mold 44 by a screw or the like. As shown in FIG. 10, the first mold 44 has a shape that matches the outer shape of the light guide main body 36 described above, and the extruded acrylic resin (36 ′) is the shape of the light guide main body 36. To do. The acrylic resin 36 ′ in the shape of the light guide main body 36 is pushed out to the second mold 45 (see FIGS. 8 and 9). As shown in FIG. 11, the second mold 45 has a shape that matches the outer shape of the diffusion layer 37 described above, and is placed in the second hopper 48 and melted in a translucent milky white fluororesin. (37 ') is the shape of the diffusion layer 37 outside the acrylic resin in the shape of the light guide body 36. That is, the second mold 45 has a cross-sectional shape that forms the diffusion layer 37 outside the light guide main body 36.

  The acrylic resin in the shape of the light guide main body 36 and the fluorine-based resin 37 ′ in the shape of the diffusion layer 37 on the outside thereof are pushed out to the third mold 46 (see FIGS. 8 and 9). As shown in FIG. 12, the third mold 46 has a shape that matches the outer shape of the reflective layer 38 described above, and is milky white fluororesin (38 ′) that is put in the third hopper 49 and melted. Is the shape of the reflective layer 38 outside the fluororesin in the shape of the diffusion layer 37. In other words, the third mold 46 has a cross-sectional shape that forms the reflective layer 38 including the positioning protrusions 35 on the outer side of the diffusion layer 37 provided in the light guide main body 36. Thereby, the translucent milky white fluororesin (37 ′) as the diffusion layer 37 is provided outside the acrylic resin 36 ′ as the light guide main body 36, and the positioning projection 35 is included on the outside. A resin member 51 (light guide member 12) provided with milky white fluororesin (35 ′ and 38 ′) as the reflective layer 38 is formed (see FIGS. 8 and 9).

  As shown in FIG. 8, the resin member 51 is taken out by the take-up machine 42, and is sent out to the cutting machine 43 while being cooled between the extrusion molding machine 41 (third mold 46) and the take-up machine 42. . The resin member 51 has a predetermined length and is cut by the cutting machine 43 so that both ends viewed in the longitudinal direction Dl are flat surfaces, and the diffusion layer 37 and the reflection are reflected to the outside of the light guide main body 36. The light guide member 12 provided with the layer 38 is formed (see FIG. 6).

  As shown in FIGS. 6 and 7, the light guide member 12 having such a configuration is provided with an impact absorbing portion 39. The shock absorbing portion 39 is interposed between the lower four of the six auxiliary projections 28 provided in the light guide housing portion 25 and the light guide member 12, and when both are brought into contact by elastic deformation. (See FIG. 4). In the present embodiment, the shock absorbing portion 39 uses a tape made of polyethylene terephthalate (PET), and is attached so as to cover the lower portion of the side wall surface 33 and the lower wall surface 34 of the light guide member 12 having the above-described configuration. .

  As shown in FIG. 3, the light guide member 12 provided with the impact absorbing portion 39 has the light source 13 opposed to the incident end face 31 at one end in the longitudinal direction D1, and the lighting driving portion 14 at the one end. Is attached. The light guide member 12 is inserted into the housing member 11 from one end on the light source housing portion 24 side where the opening / closing wall portion 26 is opened, toward the light guide housing portion 25 through the light source housing portion 24. At this time, the light guide member 12 is inserted such that the pair of positioning protrusions 35 are positioned above the pair of support protrusions 27 while the upper wall surface 32 is positioned above the vertical direction Dv (see FIG. 4). Then, in the light guide member 12, as shown in FIG. 4, the pair of positioning projections 35 are placed (contacted) on the pair of support projections 27 from the upper side, and the upper two of the six auxiliary projections 28 and each of the auxiliary projections 28. The two auxiliary projections 28 are close to each other in a positional relationship between the support projections 27. Further, the lower portion of the light guide member 12 is in contact with the light guide member 12 and the lower four of the six auxiliary projections 28 via the impact absorbing portion 39.

  Here, since both the positioning protrusions 35 and the both supporting protrusions 27 protrude in a curved shape when viewed in cross section, when the both positioning protrusions 35 come into contact with the both supporting protrusions 27 from above, It enters the inside of both support protrusions 27 as viewed in the width direction Dw. For this reason, the light guide member 12 has an upper wall surface serving as a light emitting surface, in which both positioning projections 35 provided at a location where the dimension in the width direction Dw is the largest are sandwiched and contacted by the both support projections 27 in the width direction Dw. The vicinity position of 32 is sandwiched and supported in the width direction Dw. In addition, the light guide member 12 has a lower wall surface 34 opposite to the upper wall surface 32 (light emitting surface) in the up-down direction Dv, and the lower four wall surfaces 33 below the both side wall surfaces 33 via the shock absorbers 39. Two auxiliary projections 28 are supported. In the light guide member 12, the upper wall surface 32 serving as a light emission surface is opposed to the emission opening 29 provided in the upper wall portion 21 of the housing member 11 in the vertical direction Dv.

  When the light guide member 12 is accommodated in the light guide accommodating portion 25 (accommodating member 11) as described above, the lighting drive portion 14 attached to the light guide member 12 is connected to the light guide member 12 as shown in FIG. The light source 13 is accommodated in the light source accommodating portion 24. In this state, the lighting drive unit 14 is fixed to the light source housing unit 24. Thereafter, the vehicular lamp 10 is formed by closing the opening / closing wall portion 26 (see FIG. 2). In the vehicle lamp 10, when the light source 13 is turned on by the lighting drive unit 14, the light emitted from the light source travels inward of the light guide member 12 from the incident end face 31. Then, as described above, the light guide member 12 has a substantially uniform brightness over the entire length by the light guide action by the light guide main body 36 and the diffusion action by the diffusion layer 37, and from the upper wall surface 32 (light emitting surface). Light is emitted with the vertical direction Dv as the emission direction. For this reason, in the vehicle lamp 10, light can be emitted with substantially uniform luminance over the entire length from the emission opening 29 facing the upper wall surface 32 on the upper side in the vertical direction Dv. Thereby, in the vehicle lamp 10, the vehicle 50 (the upper edges of both wall portions) can be decorated by being embedded in the upper edges of the wall portions on both sides of the vehicle 50 (FIG. 1). reference).

  By the way, in a vehicle including the vehicle 50, vibration is generated with the operation. Then, in a vehicle lamp configured to store a long light guide member in a storage member like the vehicle lamp 10, the long light guide member is intermittently connected to the storage member due to vibration generated in the vehicle. There is a risk that a rattling sound may be generated by contact with. This is due to the following. In the vehicle lamp having the above-described configuration, since the long light guide member is accommodated inside the housing member, a fitting portion for fitting the light guide member into the housing member is provided and guided from one end of the housing member. It is conceivable to insert the optical member into the fitting portion and fix the light guide member to the housing member at one end side thereof. Here, the light guide member and the housing member have a difference in dimensions due to tolerance (allowable error), so it is difficult to completely fit the light guide member into the fitting portion (housing member). A gap is generated between the member and the fitting location (accommodating member). Then, in the vehicle lamp, due to the vibration of the vehicle, the long light guide member swings inward of the accommodation member (insertion location), and the light guide member contacts the accommodation member (insertion location). There is a risk of rattling noise. Here, even if the light guide member is fixed to the housing member also on the other end side, it is difficult to stop the swinging movement of the long light guide member in the housing member, and thus the manufacturing process is increased. Slightly suppresses rattling noise. In addition, it is conceivable to provide support portions at several places in the housing member when the light guide member is viewed in the longitudinal direction, and fix the light guide member to each support portion, but this increases the number of manufacturing processes and parts. As a result, the manufacturing cost increases.

  On the other hand, in the vehicle lamp 10 of one embodiment of the vehicle lamp according to the present invention, the light guide member 12 is provided with a pair of positioning projections 35 over the entire length viewed in the longitudinal direction Dl and the housing member 11. A pair of support protrusions 27 are provided on the (light guide housing portion 25) over the entire length viewed in the longitudinal direction Dl. In the vehicle lamp 10, when the light guide member 12 is housed in the housing member 11 (light guide housing portion 25), the pair of positioning protrusions 35 are placed on the pair of support protrusions 27. For this reason, in the vehicle lamp 10, the long light guide member 12 can be supported by the housing member 11 over the entire length as viewed in the long direction Dl. It is possible to prevent the light guide member 12 from swinging inward of the housing member 11. Thereby, even if it is a case where vibration arises in the vehicle 50, in the vehicle lamp 10, it can suppress that the light guide member 12 contacts the accommodating member 11, and a rattling sound is produced.

  Further, in the vehicle lamp 10, when the light guide member 12 is housed in the housing member 11 (light guide housing portion 25), the pair of positioning protrusions 35 are placed on the pair of support protrusions 27. For this reason, in the vehicle lamp 10, since the light guide member 12 only needs to be housed in the housing member 11 (light guide housing portion 25), the generation of rattling noise due to vibration is suppressed while preventing an increase in the manufacturing process. can do.

  Furthermore, in the vehicle lamp 10, the housing member 11 (the light guide housing portion 25) supports the light guide member 12 by placing the pair of positioning projections 35 on the pair of support projections 27. For this reason, in the vehicle lamp 10, unlike the case where the light guide member 12 (part thereof) is fitted into the housing member 11 (part thereof), there is room for setting the dimensions of the positioning protrusions 35 and the support protrusions 27. Can be given. As a result, in the vehicle lamp 10, each positioning projection 35 is changed to the corresponding support projection 27 even if the dimension varies due to the tolerance (allowable error) of the light guide member 12 or the housing member 11 (light guide housing portion 25). Can be placed. Therefore, in the vehicle lamp 10, the housing member 11 (light guide housing portion 25) supports the light guide member 12 over the entire length regardless of the tolerance of the light guide member 12 and the housing member 11 (light guide housing portion 25). can do.

  In the vehicle lamp 10, the light guide member 12 is provided with a pair of positioning projections 35 over the entire length, and the housing member 11 (light guide housing portion 25) is provided with a pair of support projections 27 over the entire length, thereby causing vibration. Suppresses the generation of rattling noises. For this reason, in the vehicle lamp 10, for example, when the light guide member 12 and the housing member 11 are formed by extrusion, it can be realized simply by changing the mold to be used.

  In the vehicle lamp 10, the light guide member 12 is provided with a pair of positioning projections 35 over the entire length, and the housing member 11 (light guide housing portion 25) is provided with a pair of support projections 27 over the entire length. Is housed in the housing member 11 (light guide housing section 25), the pair of positioning projections 35 are placed on the pair of support projections 27. For this reason, in the vehicle lamp 10, the light guide member 12 is inserted from one end of the housing member 11 with the pair of positioning protrusions 35 positioned above the pair of support protrusions 27. Can be supported over the entire length by the housing member 11 (light guide housing portion 25). Thereby, in the vehicle lamp 10, it is possible to achieve both ease of assembly and suppression of rattling noise due to contact of the light guide member 12 with the housing member 11.

  In the vehicle lamp 10, a pair of positioning protrusions 35 are continuously provided over the entire length of the light guide member 12. For this reason, in the vehicle lamp 10, when the light guide member 12 is inserted from one end of the housing member 11, the positioning protrusions 35 can be prevented from being caught by the corresponding support protrusions 27. Thereby, in the vehicle lamp 10, it can assemble | attach more simply.

  In the vehicle lamp 10, a pair of support protrusions 27 are provided continuously over the entire length of the housing member 11 (light guide housing portion 25). For this reason, in the vehicle lamp 10, when the light guide member 12 is inserted from one end of the housing member 11, the positioning protrusions 35 can be prevented from being caught by the corresponding support protrusions 27. Thereby, in the vehicle lamp 10, it can assemble | attach more simply. In particular, in the vehicle lamp 10, since the pair of positioning protrusions 35 and the pair of support protrusions 27 are continuously provided over the entire length, when the light guide member 12 is inserted from one end of the housing member 11, each positioning protrusion It is possible to prevent 35 from being caught by the corresponding support protrusion 27.

  In the vehicle lamp 10, the light guide member 12 is axisymmetric with respect to a straight line that passes through the center and extends in the vertical direction Dv. For this reason, in the vehicle lamp 10, since the pair of positioning projections 35 that make a pair in the width direction Dw (orthogonal direction) can be placed on the pair of support projections 27 without deviation, the housing member 11 (light guide housing portion 25). Can support the light guide member 12 more appropriately.

  In the vehicle lamp 10, since the pair of positioning protrusions 35 are formed in the light guide member 12 by the reflective layer 38 provided outside the light guide main body 36, both the positioning protrusions 35 can be easily formed. In particular, in the above-described embodiment, since the light guide member 12 is formed by extrusion molding, it is only necessary to change the shape of the third mold 46 for the reflective layer 38, and it is necessary to change other molds. Since there is no, it can be realized more easily.

  In the vehicle lamp 10, in the light guide member 12, the light guide main body 36 and the diffusion layer 37 are not provided with bulges corresponding to the pair of positioning protrusions 35, and the pair of positioning protrusions 35 are formed only by the reflective layer 38. ing. For this reason, in the vehicle lamp 10, the light guide main body 36 and the diffusion layer 37 can be formed in a simple shape, and can be formed easily. Further, in the vehicle lamp 10, since the pair of positioning projections 35 are formed by the reflective layer 38 located on the outermost side, only the outer shape of the reflective layer 38 is changed, and the complication of molding is kept to a minimum. be able to. Further, in the vehicle lamp 10, since each positioning projection 35 can be formed within a tolerance (allowable error) of only the reflective layer 38, the variation in dimension of each positioning projection 35 can be minimized. .

  In the vehicle lamp 10, the pair of positioning protrusions 35 are formed by partially inflating the reflective layer 38 provided outside the light guide main body 36 in the light guide member 12, so that the function as the reflective layer 38 is achieved. Can be prevented from being affected. For this reason, in the vehicle lamp 10, the light guide member 12 can be appropriately supported by the housing member 11 without hindering the luminance of the light guide member 12 from being lowered or causing the light guide member 12 to emit light substantially uniformly over the entire length.

  In the vehicle lamp 10, both support projections 27 provided on the housing member 11 (light guide housing portion 25) are in contact with both positioning projections 35 provided on the light guide member 12 so as to be sandwiched in the width direction Dw (orthogonal direction). The housing member 11 supports the light guide member 12. For this reason, in the vehicle lamp 10, it is possible to efficiently suppress the light guide member 12 from swinging in the width direction Dw inside the housing member 11, and a rattling sound is generated due to the vibration of the vehicle 50. It can suppress more effectively.

  In the vehicle lamp 10, the positioning protrusions 35 are in contact with the support protrusions 27 from the upper side because the positioning protrusions 35 and the support protrusions 27 protrude in a curved shape when viewed in a cross section perpendicular to the longitudinal direction Dl. In doing so, both positioning projections 35 enter the inside of both support projections 27 viewed in the width direction Dw (orthogonal direction). For this reason, in the vehicle lamp 10, both positioning projections 35 provided on the light guide member 12 come into contact with both support projections 27 provided on the housing member 11 (light guide housing portion 25) so as to be sandwiched in the width direction Dw. Thus, the light guide member 12 is supported by the housing member 11. Thereby, in the vehicle lamp 10, it is possible to more effectively suppress the rattling noise caused by the vibration of the vehicle 50 by simply placing the pair of positioning protrusions 35 on the pair of support protrusions 27. .

  In the vehicle lamp 10, both supporting projections 27 of the housing member 11 (light guide housing portion 25) are both positioning projections 35 provided on the light guide member 12 at a location where the dimension in the width direction Dw (orthogonal direction) is the largest. The housing member 11 supports the light guide member 12 so as to be sandwiched in the width direction Dw. For this reason, in the vehicle lamp 10, it is possible to more efficiently suppress the light guide member 12 from swinging in the width direction Dw inside the housing member 11.

  In the vehicle lamp 10, both support protrusions 27 of the housing member 11 (light guide housing portion 25) sandwich a position in the vicinity of the upper wall surface 32 serving as a light emitting surface in the light guide member 12 in the width direction Dw (orthogonal direction). Thus, the housing member 11 supports the light guide member 12. For this reason, in the vehicle lamp 10, it is possible to efficiently suppress the upper wall surface 32 (light emission surface) of the light guide member 12 from swinging with respect to the housing member 11 (its emission opening 29). Thereby, in the vehicle lamp 10, even when vibration is generated in the vehicle 50, it is possible to prevent the light emitted from the upper wall surface 32 (light emitting surface) from fluctuating.

  In the vehicle lamp 10, the lower 4 of the housing member 11 (light guide housing portion 25) is provided via an impact absorbing portion 39 attached to the light guide member 12 so as to cover the lower portions of the side wall surfaces 33 and the lower wall surface 34. The light guide member 12 (the lower part) is brought into contact with the two auxiliary projections 28. For this reason, in the vehicle lamp 10, each auxiliary protrusion 28 (the lower part of the light guide member 12) has a dimensional variation due to tolerance (allowable error) of the light guide member 12 and the storage member 11 (light guide storage portion 25). ) Can be properly supported. Moreover, in the vehicle lamp 10, since the elastically deformable impact absorbing portion 39 is only provided at the lower portion of the light guide member 12, an increase in the manufacturing process can be suppressed to the minimum. Thereby, in the vehicle lamp 10, the rattling sound resulting from the vibration of the vehicle 50 can be more effectively suppressed while suppressing an increase in the manufacturing process to a minimum.

  In the vehicle lamp 10, the upper portion of the light guide member 12 is supported by both support protrusions 27 of the housing member 11 (light guide housing portion 25), and the lower portion of the light guide member 12 is housed in the housing member 11 (light guide housing portion 25). The lower four auxiliary projections 28 are brought into contact with each other via an impact absorbing portion 39. For this reason, in the vehicle lamp 10, the light guide member 12 can be more effectively suppressed from swaying inward of the housing member 11, and the rattling noise caused by the vibration of the vehicle 50 can be more effectively suppressed. be able to.

  In the vehicle lamp 10, the pair of positioning protrusions 35 of the light guide member 12 come into contact with the pair of support protrusions 27 from above, and the two auxiliary protrusions 28 and the support protrusions 27 are sandwiched between the two upper protrusions 28 and the support protrusions 27. It is close to the auxiliary protrusion 28. For this reason, in the vehicle lamp 10, each positioning projection 35 immediately contacts each upper auxiliary projection 28 even if each positioning projection 35 is displaced upward away from the corresponding support projection 27. Thereby, in the vehicle lamp 10, since the displacement amount of the light guide member 12 in the vertical direction Dv can be made small over the entire length, the rattling noise caused by the vibration of the vehicle 50 is more effectively suppressed. can do.

  Therefore, in the vehicle lamp 10 according to the embodiment of the present invention, even when the long light guide member 12 is accommodated in the accommodating member 11, the rattling noise caused by the vibration can be suppressed.

  In the above-described embodiment, the vehicle lamp 10 as an example of the vehicle lamp according to the present invention has been described. However, a long light guide member and a light source provided to face the incident end face of the light guide member And an accommodating member elongated along the longitudinal direction of the light guide member to accommodate the light guide member and the light source, and the light guide member has a full length as viewed in the longitudinal direction. A positioning protrusion that protrudes in a pair perpendicular to the longitudinal direction is provided, and a support protrusion on which the pair of positioning protrusions are placed in the housing member in a state in which the light guide member is housed. Any vehicle lamp may be used as long as the vehicle lamp is provided over the entire length viewed in the longitudinal direction by making a pair in the orthogonal direction, and is not limited to the configuration of the above-described embodiment.

  In the above-described embodiment, the upper wall portion 21, the side wall portions 22, and the lower wall portion 23 that form the light guide housing portion 25 in the housing member 11 are the outer shape of the housing member 11 (the vehicle lamp 10). It is also supposed to form. However, the accommodating member 11 accommodates the long light guide member 12 and the light source 13, and is a support that protrudes inward in the orthogonal direction (in the above-described embodiment, the width direction Dw). As long as the protrusions 27 are provided, for example, the outer wall portion that forms the outer shape on the outer side of the upper wall portion 21, the side wall portions 22, and the lower wall portion 23 may be used. It may be a configuration and is not limited to the configuration of the above-described embodiment.

  Furthermore, in the above-described embodiment, the housing member 11 (its light guide housing portion 25) has an upper wall portion 21, side wall portions 22, and a lower wall portion 23. However, the accommodating member 11 accommodates the long light guide member 12 and the light source 13, and is paired inward in the orthogonal direction (width direction Dw) over the entire length viewed in the longitudinal direction Dl. As long as the support protrusion 27 that protrudes is provided, other shapes and configurations may be used, and the configuration is not limited to the above-described embodiment.

  In the above-described embodiment, the light guide member 12 has a configuration in which the diffusion layer 37 and the reflection layer 38 are provided outside the light guide main body 36. However, as long as the light guide member 12 is provided with positioning protrusions 35 that protrude outward in the orthogonal direction (width direction Dw) over the entire length viewed in the long direction Dl, for example, In addition, only one of the diffusion layer 37 and the reflection layer 38 may be provided outside the light guide main body 36, or other shapes and configurations may be used. It is not limited to. When only one of the diffusion layer 37 and the reflection layer 38 is provided as described above, it is desirable to provide the pair of positioning projections 35 by partially expanding the provided diffusion layer 37 or the reflection layer 38.

  In the above-described embodiment, the pair of positioning protrusions 35 are formed by the reflective layer 38 in the light guide member 12, but may be formed by the diffusion layer 37 and the reflective layer 38. 37 and the reflective layer 38 may be used, and other configurations may be used. The configuration is not limited to the configuration of the above-described embodiment.

  In the above-described embodiment, the outer shape of the light guide member 12 is formed by the upper wall surface 32, the both side wall surfaces 33, and the lower wall surface 34 when viewed in a cross section orthogonal to the longitudinal direction Dl. However, the light guide member 12 is long and guides light incident from the incident end face (incident end face 31 in the above-described embodiment) to be emitted from the light exit surface (upper wall surface 32 in the above-described embodiment). As long as it is provided with positioning projections 35 that project outwardly in the orthogonal direction (width direction Dw) over the entire length viewed in the longitudinal direction Dl, the shape and each dimension These may be set as appropriate and are not limited to the configuration of the above-described embodiment.

  In the above-described embodiment, the upper wall surface 32, which is the upper flat surface when viewed in the vertical direction Dv, is used as the light emitting surface. However, the light incident from the incident end surface (incident end surface 31) is guided and emitted from the light emitting surface. In this case, the direction in which the light exit surface faces and the mode (shape) of the surface may be set as appropriate, and are not limited to the configuration of the above-described embodiment.

  In the above-described embodiment, the pair of positioning protrusions 35 and the pair of support protrusions 27 are configured to be continuous over the entire length viewed in the longitudinal direction D1, but are provided over the entire length viewed in the longitudinal direction Dl. If it is, it may be an intermittent structure, and is not limited to the structure of the above-described embodiment.

  In the above-described embodiment, the light source 13 is provided with only one end side of the light guide member 12 as the incident end face 31 facing the incident end face 31, but the other flat face is also opposed to the incident end face as the incident end face. Another light source may be provided, and is not limited to the configuration of the above-described embodiment.

  In the above-described embodiment, one end side of the light guide member 12 is attached to the lighting drive unit 14 to which the light source 13 is connected, and the lighting drive unit 14 is fixed to the housing member 11. However, what is necessary is just to fix the light guide member 12 to the accommodation member 11 suitably, and it is not limited to the structure of an above-described Example. At this time, for example, the light guide member 12 can be inserted from one end of the housing member 11 such that one end and the other end of the light guide member 12 are fixed to the housing member 11. desirable.

  In the above-described embodiment, the pair of positioning protrusions 35 of the light guide member 12 are in contact with the pair of support protrusions 27 from above, and the two auxiliary protrusions 28 and the support protrusions 27 are sandwiched between the two upper protrusions 28 and the support protrusions 27. It is made to adjoin with auxiliary projection 28. However, the pair of positioning protrusions 35 may be brought into contact with the upper two of the six auxiliary protrusions 28, that is, the positioning protrusions 35 may be sandwiched between the upper two auxiliary protrusions 28 and the support protrusions 27. Well, it is not limited to the configuration of the embodiment described above.

  In the embodiment described above, the vehicle lamp 10 used for decoration of the vehicle 50 is shown. However, the vehicle lamp according to the present invention accommodates the long light guide member and the light source in the housing member, and includes a pair of positioning projections and a pair of support projections over the entire length viewed in the longitudinal direction. May be used for other vehicles such as a vehicle, or may be used for illumination, and is not limited to the configuration of the above-described embodiment.

  As mentioned above, although the vehicle lamp of the present invention has been described based on the embodiments, the specific configuration is not limited to the embodiments, and design changes and additions are allowed without departing from the gist of the present invention. Is done.

DESCRIPTION OF SYMBOLS 10 Vehicle lamp 11 Housing member 12 Light guide member 13 Light source 27 Supporting protrusion 31 Incident end surface 32 Upper wall surface (as an example of a light emission surface) 35 Positioning protrusion 36 Light guide main body part 37 Diffusion layer 38 Reflective layer Dl Long direction Dw Width direction (as an example of orthogonal direction)

Claims (9)

A long light guide member;
A light source provided to face the incident end face of the light guide member;
A long accommodating member along the long direction of the light guide member to accommodate the light guide member and the light source,
The light guide member is provided with positioning protrusions that project in pairs in the orthogonal direction orthogonal to the longitudinal direction over the entire length seen in the longitudinal direction,
The housing member is provided with support projections for placing the pair of positioning projections in a state in which the light guide member is accommodated, over the entire length seen in the longitudinal direction in pairs in the orthogonal direction ,
The light guide member includes a light guide main body portion, and at least one of a diffusion layer provided on the outside of the light guide layer and a reflection layer that reflects light,
Wherein each of the positioning projections, vehicle lamp characterized that you formed partially inflate the diffusion layer or the reflective layer. A long light guide member;
A light source provided to face the incident end face of the light guide member;
A long accommodating member along the long direction of the light guide member to accommodate the light guide member and the light source,
The light guide member is provided with positioning protrusions that project in pairs in the orthogonal direction orthogonal to the longitudinal direction over the entire length seen in the longitudinal direction,
The housing member is provided with support projections for placing the pair of positioning projections in a state in which the light guide member is accommodated, over the entire length seen in the longitudinal direction in pairs in the orthogonal direction,
The light guide member includes a light guide main body, a diffusion layer provided on the outside thereof for diffusing light, and a reflection layer provided on the outside for reflecting light,
Wherein each of the positioning projections, vehicle lamp characterized that you formed partially inflate the reflective layer. A long light guide member;
A light source provided to face the incident end face of the light guide member;
A long accommodating member along the long direction of the light guide member to accommodate the light guide member and the light source,
The light guide member is provided with positioning protrusions that project in pairs in the orthogonal direction orthogonal to the longitudinal direction over the entire length seen in the longitudinal direction,
The housing member is provided with support projections for placing the pair of positioning projections in a state in which the light guide member is accommodated, over the entire length seen in the longitudinal direction in pairs in the orthogonal direction,
The light guide member includes a light guide main body, a diffusion layer provided on the outside thereof for diffusing light, and a reflection layer provided on the outside for reflecting light,
Wherein each of the positioning projections, vehicle lamp characterized that you form the diffusion layer and the reflective layer inflatable partially. 4. The vehicle lamp according to claim 1 , wherein each positioning protrusion of the light guide member is continuously provided over the entire length when viewed in the longitudinal direction. 5. . Wherein said housing member each support protrusion, vehicle lamp according to any one of claims 1 to 4, characterized that you have provided continuously over the entire length as viewed in the long direction. The light guide member, when viewed in cross section perpendicular to the longitudinal direction so the preceding claims, characterized that you have been the line symmetry with respect to a line perpendicular at the midpoint of a straight line connecting between the pair of the positioning projection The vehicle lamp according to claim 5 . The light guide member has a light emitting surface that emits light that is positioned in a direction orthogonal to the longitudinal direction,
7. The positioning projections according to claim 1, wherein the positioning protrusions are provided in a pair in the orthogonal direction while sandwiching the light emitting surface in the vicinity of the light emitting surface in the light guide member. The vehicle lamp according to any one of the preceding claims.   Each said positioning protrusion of the said light guide member is protruded and formed in the curved surface shape seeing in the cross section orthogonal to the said elongate direction, The any one of Claims 1-7 characterized by the above-mentioned. Vehicle lighting.   9. The support member according to claim 1, wherein each of the support protrusions of the housing member protrudes in a curved shape when viewed in a cross section orthogonal to the longitudinal direction. Vehicle lamp.