Vehicular interior component
A single light guide with multiple exit surfaces and reflective surfaces in vehicle interior accessories addresses the complexity and component count issues of existing lighting devices, achieving efficient and aesthetically enhanced illumination.
Patent Information
- Application Number
- JP2024096675
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-12-25
AI Technical Summary
Existing vehicle interior lighting devices require multiple light sources or complex light-guiding members to illuminate multiple openings, leading to increased components and structural complexity.
A vehicle interior accessory featuring a single elongated light guide with multiple exit surfaces and reflective surfaces that emit light towards multiple openings, allowing efficient illumination with a simple configuration.
The solution enables efficient light emission from multiple openings with reduced components and complexity, facilitating indirect lighting and improved interior design through pattern illumination.
Smart Images

Figure 2025187677000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a vehicle interior part. [Background technology]
[0002] Patent Document 1 describes an interior lighting device for a vehicle. This lighting device includes a door trim, an armrest, and a lighting member. An opening extending along the joint between the door trim and the armrest is formed. The lighting member is composed of a long light-guiding member disposed inside the opening so as to face the opening, and a light source provided at an end of the light-guiding member. In this lighting device, light from the lighting member passes through the opening and is emitted toward the interior of the vehicle. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-142218 Summary of the Invention [Problem to be solved by the invention]
[0004] However, in the above-described lighting device, in order to radiate a sufficient amount of light from multiple openings in the vehicle cabin, a light source or a light-guiding member is required for each of the multiple openings. This results in a problem of an increased number of components in the lighting device. Another possible solution is to arrange a long light-guiding member by bending it so that it faces each of the multiple openings. However, this would result in another problem of the light-guiding member having a complex structure. [Means for solving the problem]
[0005] Various aspects of vehicle interior accessories for solving the above problems will be described below. [Aspect 1] A vehicle interior accessory comprising: a light source; an elongated light guide that extends intersecting the interior and exterior directions of a vehicle and guides light emitted from the light source; and an interior member that forms part of the vehicle interior design surface, wherein the interior member has a plurality of openings that allow the light emitted from the light guide to pass toward the interior of the vehicle, wherein the plurality of openings include first and second openings that extend in the extension direction of the light guide, and the light guide has a first exit surface that emits the light toward the first opening and a second exit surface that emits the light toward the second opening, wherein the first exit surface and the second exit surface are provided at different positions from each other on the same cross section in the plane direction of an imaginary plane that is perpendicular to the extension direction.
[0006] According to the above configuration, a portion of light emitted from the light source is emitted from the first exit surface of the light guide toward the first opening of the interior member. Furthermore, the light is emitted toward the vehicle interior by passing through the first opening. Here, the light guide has, in addition to the first exit surface, a second exit surface provided at a different position from the first exit surface on the same cross section in the planar direction. Therefore, a portion of the light emitted from the light source is emitted from the second exit surface toward the second opening of the interior member. As a result, light is emitted from the second opening toward the vehicle interior. Therefore, by simply arranging a single light guide having a first exit surface and a second exit surface on the same cross section for an interior member having multiple openings, light can be emitted toward the vehicle interior from at least both the first opening and the second opening of the multiple openings. Therefore, light can be emitted from multiple openings with a simple configuration.
[0007] [Aspect 2] The vehicle interior part according to [Aspect 1], wherein at least one of the first light exit surface and the second light exit surface is inclined with respect to the inward / outward direction. According to the above configuration, at least one of the first and second exit surfaces is an inclined surface. Therefore, by adjusting the inclination angle of one of the exit surfaces with respect to the axis extending in the inward / outward direction, light can be efficiently emitted toward the first opening or the second opening. Therefore, light can be efficiently emitted from the opening.
[0008] [Aspect 3] The light guide is provided at a position different from both the first exit surface and the second exit surface on the same cross section in the planar direction, and has a reflective surface that reflects the light guided inside the light guide. This is the vehicle interior accessory described in [Aspect 1] or [Aspect 2].
[0009] According to the above configuration, the reflective surface provided in the light guide at a position different from both the first exit surface and the second exit surface on the same cross section of the light guide allows light incident on the reflective surface to be more effectively reflected toward the interior of the light guide. Therefore, light transmission to the exterior of the light guide can be suppressed compared to when no reflective surface is provided. This allows light to be efficiently incident on each exit surface. Therefore, light can be more efficiently emitted from the opening.
[0010] [Aspect 4] A vehicle interior part according to any one of [Aspect 1] to [Aspect 3], wherein the design surface of the interior member is formed with a first reflecting surface that reflects the light emitted from the first opening toward the interior side of the vehicle in the interior / exterior direction, and a second reflecting surface that reflects the light emitted from the second opening toward the interior side of the vehicle in the interior / exterior direction.
[0011] According to the above configuration, light that passes through the first opening and is irradiated onto the first reflecting surface is reflected toward the interior of the vehicle. This allows so-called indirect lighting to be performed, illuminating the interior of the vehicle using light reflected off the first reflecting surface. Furthermore, according to the above configuration, light that passes through the second opening and is irradiated onto the second reflecting surface is reflected toward the interior of the vehicle. As a result, by simply arranging one light guide having a first exit surface and a second exit surface on the interior member, indirect lighting can be performed using the first reflecting surface and the second reflecting surface formed on the design surface of the interior member. Therefore, with a simple configuration, indirect lighting can be performed using multiple locations on the design surface.
[0012] [Aspect 5] The vehicle interior part according to any one of [Aspects 1] to [Aspect 4], wherein the plurality of openings further include a third opening that opens toward the interior side of the vehicle in the interior-exterior direction, the vehicle interior part further includes a cover portion that closes the third opening, the cover portion having a light-transmitting portion that transmits the light and a light-shielding portion that blocks the light, the light guide has a third exit surface that is provided at a position different from both the first exit surface and the second exit surface on the same cross section in the surface direction and that emits the light toward the cover portion, and the vehicle interior part is configured to emit a pattern toward the interior side of the vehicle in the interior-exterior direction by transmitting the light emitted from the third exit surface through the light-transmitting portion.
[0013] According to the above configuration, the light emitted from the third exit surface of the light guide passes through the light-transmitting portion of the cover, thereby illuminating and displaying a pattern toward the interior of the vehicle, thereby improving the design of the vehicle interior accessory. [Effects of the Invention]
[0014] According to the present invention, it is possible to emit light from a plurality of openings with a simple configuration. [Brief explanation of the drawings]
[0015] [Figure 1] FIG. 1 is a perspective view showing a vehicle interior trim according to one embodiment. [Figure 2] FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. [Figure 3] FIG. 3 is an enlarged cross-sectional view of the vehicle interior part of FIG. 2, focusing on the lighting device. [Figure 4] FIG. 4 is a diagram corresponding to FIG. 3 and is a schematic diagram showing the path of light. [Figure 5] FIG. 5 is a cross-sectional view showing a modified example of a vehicle interior trim. DETAILED DESCRIPTION OF THE INVENTION
[0016] Hereinafter, an embodiment of a vehicle interior trim will be described with reference to FIGS. 1 to 4. In this embodiment, the present invention is embodied as a door trim attached to a vehicle door. In the following description, the longitudinal direction of the vehicle will be referred to as the longitudinal direction, the width direction of the vehicle will be referred to as the vehicle width direction, and the up-down direction of the vehicle when the vehicle is positioned on a horizontal plane will be referred to as the up-down direction. Furthermore, the upper and lower sides in the up-down direction will be simply referred to as the upper and lower sides. Note that in this embodiment, the vehicle width direction corresponds to the inward-outward direction of the vehicle according to the present invention. Therefore, in the following description, the side closer to the center of the vehicle in the vehicle width direction will be referred to as the inside of the vehicle, and the side away from the center will be referred to as the outside of the vehicle. Furthermore, in the following description, "orthogonal" does not only mean strictly perpendicular, but also includes cases where the two intersect approximately perpendicularly within a range in which the effects of each embodiment are achieved.
[0017] As shown in FIGS. 1 to 3, the vehicle interior accessory 10 includes an interior member 11 and a lighting device 12. <Interior material 11> The interior member 11 is a member that constitutes part of the design surface of the vehicle interior. The interior member 11 has a first panel 20, a second panel 30, and a storage section 40.
[0018] (1st panel 20) As shown in FIGS. 1 and 2, the first panel 20 has a first inner wall portion 21 and a first outer wall portion 23. The first inner wall portion 21 extends in both the front-rear direction and the vehicle width direction. The first inner wall portion 21 is curved so as to be positioned lower as it approaches the interior of the vehicle. A first opening 22 is formed in the first inner wall portion 21. The first opening 22 is a hole that penetrates the first inner wall portion 21 in the up-down direction (see FIG. 2). The first opening 22 extends linearly in the front-rear direction (see FIG. 1). The first opening 22 is formed so that its length in the vehicle width direction (hereinafter simply referred to as width) increases toward the upper side (see FIG. 2). The first outer wall portion 23 is positioned above the first inner wall portion 21. The first outer wall portion 23 extends in both the front-rear direction and the vehicle width direction. The first outer wall portion 23 is inclined so as to be positioned higher as it approaches the interior of the vehicle. The lower end of the first outer wall portion 23 is connected to the first inner wall portion 21. The upper end of the first outer wall portion 23 is connected to the general portion 25.
[0019] 2, the first outer wall portion 23 has a first reflecting surface 24 that covers the first opening 22 from above. The first reflecting surface 24 faces the entire upper opening edge portion 22a of the first opening 22 in the opening direction of the first opening 22 along the up-down direction. The first reflecting surface 24 constitutes a part of the design surface 20a of the first panel 20.
[0020] (2nd panel 30) As shown in FIGS. 1 and 2, the second panel 30 has a second inner wall portion 31 and a second outer wall portion 33. The second inner wall portion 31 extends in both the front-rear direction and the vehicle width direction. The second inner wall portion 31 is curved so that it is positioned higher as it moves toward the interior of the vehicle. A second opening 32 is formed in the second inner wall portion 31 (see FIG. 2). The second opening 32 is a hole that penetrates the second inner wall portion 31 in the up-down direction. The second opening 32 extends linearly in the front-rear direction, similar to the first opening 22. The second opening 32 is formed so that its width increases toward the bottom. The second outer wall portion 33 is positioned below the second inner wall portion 31. The second outer wall portion 33 extends in both the front-rear direction and the vehicle width direction. The second outer wall portion 33 is inclined so that it is positioned lower as it moves toward the interior of the vehicle. The upper end of the second outer wall portion 33 is connected to the second inner wall portion 31. The lower end of the second outer wall portion 33 is connected to the general portion 35 .
[0021] 2, the second outer wall portion 33 has a second reflecting surface 34 that covers the second opening 32 from below. The second reflecting surface 34 faces the entire lower opening edge portion 32a of the second opening 32 in the opening direction of the second opening 32 along the up-down direction. The second reflecting surface 34 constitutes a part of the design surface 30a of the second panel 30.
[0022] (Storage section 40) As shown in FIGS. 1 and 2, the interior member 11 has a connecting wall 41 connecting the first inner wall 21 and the second inner wall 31. The connecting wall 41 connects the outer end of the first inner wall 21 to the outer end of the second inner wall 31. The connecting wall 41, the first inner wall 21, and the second inner wall 31 form a storage section 40 having a third opening 42 that opens toward the interior of the vehicle and an internal storage space S2. The first opening 22 and the second opening 32 communicate the storage space S2 with the interior space S1 (see FIG. 2). The third opening 42 is formed by the inner end of the first inner wall 21 and the second inner wall 31. The third opening 42 extends linearly in the front-to-rear direction (see FIG. 1). The storage space S2 houses a lighting device 12.
[0023] <Lighting Device 12> 1 to 3, the lighting device 12 includes a light source unit 50, a light guide 60, a housing 70, and a cover 80. The light source unit 50 includes a light source that emits visible light, a substrate on which the light source is mounted (all not shown), and a case 51 that houses the light source and the substrate (see FIG. 1). The light source is configured by a light-emitting element such as a light-emitting diode (LED).
[0024] (light guide 60) As shown in FIGS. 2 and 3, the light guide 60 is a member that guides visible light (hereinafter simply referred to as light) emitted from a light source. The light guide 60 has an elongated shape extending along the front-rear direction. That is, the front-rear direction in this embodiment corresponds to the extending direction of the light guide according to the present invention. The cross-sectional shape of the light guide 60 along the surface direction of an imaginary plane perpendicular to the front-rear direction is a trapezoid having an upper base and a lower base that extend parallel to each other along the up-down direction. The light guide 60 is made of a resin material that transmits light. Examples of resin materials that can be used include acrylic resins such as polymethyl methacrylate (PMMA) and polycarbonate (PC).
[0025] 1, one light source unit 50 is attached to each of both end faces 60a in the front-rear direction of the light guide 60. The end faces 60a are incident surfaces through which light from the light source is taken in.
[0026] 2 and 3, the light guide 60 has a first exit surface 61, a second exit surface 62, a third exit surface 63, and a reflecting surface 64. The surfaces 61, 62, 63, and 64 are provided at different positions on the same cross section in the planar direction of the imaginary plane. The first exit surface 61 and the second exit surface 62 constitute portions of the light guide 60 that correspond to the legs of a trapezoid on the cross section. The first exit surface 61 constitutes the upper side of a pair of opposite sides that constitute the legs of the trapezoid.
[0027] As shown in FIG. 3, the first light emitting surface 61 is an inclined surface that is inclined in the vehicle width direction. Specifically, the first light emitting surface 61 is inclined so that it is positioned lower as it approaches the interior of the vehicle. The inclination angle θ1 of the first light emitting surface 61 with respect to the axis A1 extending in the vehicle width direction is preferably, for example, not less than 0° and not more than 45° (0≦θ1≦45°). The second light emitting surface 62 is an inclined surface that is inclined in the vehicle width direction. Specifically, the second light emitting surface 62 is inclined so that it is positioned higher as it approaches the interior of the vehicle. The inclination angle θ2 of the second light emitting surface 62 with respect to the axis A2 extending in the vehicle width direction is preferably, for example, not less than 0° and not more than 45° (0≦θ2≦45°).
[0028] As shown in Figures 2 and 3, the third emission surface 63 constitutes a portion of the light guide 60 on the cross section that corresponds to the upper base of the trapezoid. The third emission surface 63 extends in both the extension direction and the vertical direction. The reflection surface 64 constitutes a portion of the light guide 60 on the cross section that corresponds to the lower base of the trapezoid. The reflection surface 64 extends in both the extension direction and the vertical direction. A fine prism-shaped periodic structure (not shown) is formed on the reflection surface 64.
[0029] (Housing 70) 2 and 3, the housing 70 is an elongated member that holds the light guide 60. The housing 70 is colored, for example, white, which has high light reflection efficiency, or black, which blocks light. In this embodiment, the housing 70 is integrally molded using a resin material that is colored white by dispersing a white light diffusing material therein.
[0030] The housing 70 has a pair of side walls 71, 72 and a bottom wall 73 connecting the vehicle exterior ends of the pair of side walls 71, 72. The pair of side walls 71, 72 extend in both the front-rear direction and the vehicle width direction. An opening 76 is defined by the vehicle interior ends of the pair of side walls 71, 72 (see FIG. 3). Holes 74, 75 are formed in each of the pair of side walls 71, 72. The hole 74 penetrates the side wall 71 in the up-down direction. The hole 74 extends linearly in the front-rear direction. The hole 74 is formed at a position overlapping with the first opening 22 in the opening direction of the hole 74 in the up-down direction. The width of the hole 74 is formed to increase toward the upper side. The width of an upper opening edge 74a of the hole 74 is the same as or smaller than the width of a lower opening edge 22b of the first opening 22 (see FIG. 3). The hole 75 penetrates the side wall 72 in the up-down direction. The hole 75 extends linearly in the front-to-rear direction. The hole 75 is formed at a position that overlaps with the second opening 32 in the opening direction of the hole 75 along the up-down direction. The hole 75 is formed so that its width increases toward the bottom. The width of the lower opening edge 75a of the hole 75 is the same as or smaller than the width of the upper opening edge 32b of the second opening 32 (see FIG. 3). The bottom wall 73 extends in both the front-to-rear direction and the up-to-down direction.
[0031] (Cover part 80) 3, the cover 80 is a member that covers the light guide 60 from the inside of the vehicle. The cover 80 is joined to the edge of the opening 76 of the housing 70 to close the opening 76. This forms an accommodation space S3 between the housing 70 and the cover 80. The light guide 60 is accommodated in the accommodation space S3 with the third emission surface 63 facing the rear surface of the cover 80 and the reflective surface 64 facing the bottom wall 73.
[0032] 1, the design surface of the cover part 80 is provided with a display area 81 that displays a pattern facing the inside of the vehicle, and a background area 82 that provides a background other than the pattern. In this embodiment, the display area 81 displays a pattern in which multiple circles are arranged at equal intervals in the front-to-rear direction.
[0033] As shown in FIG. 3 , the cover 80 includes a base material 83 and a decorative portion 84. The base material 83 is formed of a resin material that transmits light. Examples of the resin material that can be used include acrylic resin such as PMMA and PC. The decorative portion 84 is laminated on an inner surface 83a of the base material 83. The decorative portion 84 includes a light-shielding portion 85 that blocks light and a light-transmitting portion 86 that transmits light. The light-shielding portion 85 is formed of a mixed material that mixes a resin material such as PC with a black pigment such as carbon black. The light-shielding portion 85 corresponds to the background region 82. In this embodiment, the light-transmitting portion 86 is a hole formed by cutting out a portion of the light-shielding portion 85. That is, the base material 83 is exposed toward the interior of the vehicle through the light-transmitting portion 86. The light-transmitting portion 86 corresponds to the display region 81.
[0034] (Overall configuration of vehicle interior part 10) 4, first emission surface 61 is configured to emit light L1 guided through light guide 60 toward first opening 22. Hole 74 and first opening 22 are configured to transmit light L1 emitted from first emission surface 61. Furthermore, first opening 22 is configured to transmit light L1, thereby emitting light L1 toward the interior of the vehicle (vehicle interior space S1).
[0035] 2, the first reflecting surface 24 is configured to reflect the light L1 emitted from the first opening 22 toward the inside of the vehicle. In Fig. 2, an irradiation range R1 of the light L1 is indicated by a dashed line.
[0036] 4, second exit surface 62 is configured to emit light L2 guided through light guide 60 toward second opening 32. Hole 75 and second opening 32 are configured to pass light L2 emitted from second exit surface 62. Second opening 32 is configured to pass light L2, thereby emitting light L2 toward the interior of the vehicle (vehicle interior space S1).
[0037] 2, the second reflecting surface 34 is configured to reflect the light L2 emitted from the second opening 32 toward the inside of the vehicle. In Fig. 2, an irradiation range R2 of the light L2 is indicated by a dashed line.
[0038] 4, the third emission surface 63 is configured to emit the light L3 guided inside the light guide 60 toward the cover portion 80. The vehicle interior accessory 10 is configured to transmit the light L3 emitted from the third emission surface 63 through the light-transmitting portion 86 of the cover portion 80, thereby emitting and displaying a pattern toward the inside of the vehicle.
[0039] As shown in FIG. 4, the reflecting surface 64 is configured to reflect the light guided inside the light guide body 60 toward each of the light exit surfaces 61, 62, and 63. <Operation of this embodiment> Light L1 emitted from the light source is emitted from the first emission surface 61 toward the first opening 22 formed in the first inner wall portion 21 of the first panel 20. The light L1 passes through the hole 74 and the first opening 22, and is emitted toward the interior of the vehicle cabin (vehicle cabin space S1). In addition to the first emission surface 61, the light guide 60 has a second emission surface 62 provided at a position different from the first emission surface 61 on the same cross section in the planar direction of an imaginary plane perpendicular to the front-to-rear direction. Therefore, light L2 emitted from the light source is emitted from the second emission surface 62 toward the second opening 32 formed in the second inner wall portion 31 of the second panel 30. As a result, light L2 is emitted from the second opening 32 toward the interior of the vehicle cabin (vehicle cabin space S1). For this reason, by simply placing one light guide 60 having a first exit surface 61 and a second exit surface 62 on the same cross section in relation to an interior member 11 having openings 22 and 32, light L1 and L2 can be emitted from both openings 22 and 32 toward the interior of the vehicle (vehicle interior space S1).
[0040] <Effects of this embodiment> (1) A vehicle interior accessory 10 includes a light source unit 50, an elongated light guide 60 extending perpendicular to the vehicle width direction, and an interior member 11 that forms part of the vehicle interior design surface. The interior member 11 has a first opening 22 and a second opening 32 that allow light L1, L2 emitted from the light guide 60 to pass toward the vehicle interior. The light guide 60 has a first exit surface 61 that emits light L1 toward the first opening 22 and a second exit surface 62 that emits light L2 toward the second opening 32. The first exit surface 61 and the second exit surface 62 are provided at different positions on the same cross section in the plane direction of an imaginary plane perpendicular to the front-rear direction.
[0041] This configuration provides the above-mentioned effects, and therefore the light beams L1 and L2 can be emitted from the plurality of openings 22 and 32 with a simple configuration. (2) First light exit surface 61 is inclined downward toward the interior of the vehicle, and second light exit surface 62 is inclined upward toward the interior of the vehicle.
[0042] According to this configuration, the first and second emission surfaces 61 and 62 are inclined surfaces. Therefore, by adjusting the inclination angles θ1 and θ2 of the emission surfaces 61 and 62 with respect to the axes A1 and A2 extending in the vehicle width direction, the light L1 and L2 can be efficiently emitted toward the first and second openings 22 and 32. Therefore, the light L1 and L2 can be efficiently emitted from the openings 22 and 32.
[0043] (3) The light guide 60 has a reflecting surface 64 that is located at a position different from both the first exit surface 61 and the second exit surface 62 on the same cross section in the above-mentioned plane direction and reflects light guided inside the light guide 60.
[0044] According to this configuration, the reflective surface 64, which is provided at a position different from the first exit surface 61 and the second exit surface 62 on the same cross section of the light guide 60, reflects the light incident on the reflective surface 64 toward the interior of the light guide 60 to an increased extent. Therefore, light transmission to the outside of the light guide 60 can be suppressed compared to when the reflective surface 64 is not provided. This allows light to be efficiently incident on each of the exit surfaces 61, 62, and 63. Therefore, the light L1 and L2 can be more efficiently emitted from the openings 22 and 32. Furthermore, a clear pattern can be illuminated and displayed toward the interior of the vehicle.
[0045] (4) The design surfaces 20a, 30a of the interior member 11 are formed with a first reflecting surface 24 that reflects the light L1 emitted from the first opening 22 toward the inside of the vehicle, and a second reflecting surface 34 that reflects the light L2 emitted from the second opening 32 toward the inside of the vehicle.
[0046] With this configuration, light L1 that passes through the first opening 22 of the first inner wall portion 21 and is irradiated onto the first reflecting surface 24 is reflected toward the interior of the vehicle. This allows so-called indirect lighting to be performed, illuminating the interior of the vehicle using light L1 reflected off the first reflecting surface 24. Furthermore, with the above configuration, light L2 that passes through the second opening 32 and is irradiated onto the second reflecting surface 34 is reflected toward the interior of the vehicle. Therefore, by simply arranging one light guide 60 having a first exit surface 61 and a second exit surface 62 on the interior member 11, indirect lighting can be performed using the first reflecting surface 24 and the second reflecting surface 34 formed on the design surfaces 20a, 30a of the interior member 11. Therefore, with a simple configuration, indirect lighting can be performed using multiple locations on the design surface.
[0047] (5) The interior member 11 has a third opening 42 that opens toward the interior side of the vehicle between the first panel 20 and the second panel 30 of the interior member 11. The vehicle interior accessory 10 further includes a cover 80 that closes the third opening 42. The cover 80 has a light-transmitting portion 86 that transmits light L3 and a light-shielding portion 85 that blocks the light L3. The light guide 60 has a third exit surface 63 that is provided at a position different from both the first exit surface 61 and the second exit surface 62 on the same cross section in the above-mentioned planar direction and that emits light L3 toward the cover 80. The vehicle interior accessory 10 is configured to emit a pattern toward the interior side of the vehicle by transmitting the light L3 emitted from the third exit surface 63 through the light-transmitting portion 86.
[0048] According to this configuration, the light L3 emitted from the third emission surface 63 of the light guide 60 passes through the light-transmitting portion 86 of the cover portion 80, thereby emitting a pattern toward the interior of the vehicle. This improves the design of the vehicle interior accessory 10.
[0049] <Example of change> This embodiment can be modified as follows: This embodiment and the following modifications can be combined and implemented within the scope of technical compatibility.
[0050] 5, the third opening 42 may be omitted from the interior member 11. In this case, a connecting wall 41A that covers the lighting device 12 from the inside of the vehicle may be provided instead of the connecting wall 41. In this case, the connecting wall 41A may connect the inside-side ends of the first inner wall 21 and the second inner wall 31, for example.
[0051] According to this configuration, the cover portion 80 can be omitted from the lighting device 12. In this case, the vehicle interior side ends of the side walls 71, 72 and the connecting wall portion 41A may be joined together so that the opening 76 of the housing 70 is closed by the connecting wall portion 41A.
[0052] When the third opening 42 is omitted, the third exit surface 63 of the light guide 60 may be configured as a reflective surface by providing a fine periodic prism-like structure on the third exit surface 63. The first outer wall portion 23 may be omitted from the first panel 20. In other words, the first panel 20 is not limited to a configuration in which the first outer wall portion 23 is disposed above the first inner wall portion 21 so as to cover the first opening 22. For example, the first panel 20 may be configured such that the upper side of the first opening 22 is open. In this case, the first opening 22 directly emits light L1 toward the interior of the vehicle. Note that this modification may be applied to the second panel 30 instead of the first panel 20, or may be applied to both panels 20, 30.
[0053] The light guide 60 may omit the reflecting surface 64 . The cross-sectional shape of the light guide 60 is not limited to a trapezoidal shape as exemplified in this embodiment, and may be a polygonal or circular shape. In this case, the first light exit surface 61 and the second light exit surface 62 do not have to be inclined with respect to an axis along the vehicle width direction as exemplified in this embodiment, and may extend along the axes A1 and A2 or may be curved with respect to the axes A1 and A2.
[0054] The vehicle interior part according to the present invention is not limited to the door trim exemplified in this embodiment, but may also be embodied as an interior panel such as an instrument panel or dashboard located in the front of the vehicle interior. In this case, the "interior / exterior direction" according to the present invention is not limited to the vehicle width direction. For example, if the interior panel is located in the front or rear of the vehicle interior, the "interior / exterior direction" corresponds to the front-to-rear direction. Furthermore, if the interior panel is located in the upper part of the vehicle interior, the "interior / exterior direction" corresponds to the up-down direction. [Explanation of symbols]
[0055] A1,A2…axis line L1, L2, L3...light R1, R2...Emission range S1: Interior space S2, S3...containment space θ1, θ2…Inclination angle 10...Vehicle interior parts 11...Interior materials 12...Lighting equipment 20...1st panel 20a...Design surface 21...First inner wall 22...First opening 22a...Opening edge 22b…Opening edge 23...First outer wall part 24…First reflective surface 25…General section 30...Second panel 30a...Design surface 31...Second inner wall 32...Second opening 32a...Opening edge 32b…Opening edge 33…Second outer wall part 34…Second reflective surface 35…General section 40...Storage section 41,41A…Connecting wall part 42...Third opening 50...Light source unit 51...Storage case 60...Light guide 60a...End face 61...First exit surface 62...Second exit surface 63...Third exit surface 64…Reflective surface 70…Housing 71...Side wall 72…Side wall 73...Bottom wall 74...hole 74a...Opening edge 75...hole 75a...Opening edge 76...Opening 80...Cover part 81...Display area 82…Background area 83...Base material 83a...Inside 84...Decorative part 85...Light blocking part 86…Translucent part
Claims
1. a light source; an elongated light guide extending in a direction intersecting the interior and exterior of a vehicle and guiding light emitted from the light source; and an interior member constituting a part of a design surface of a vehicle interior; The interior member has a plurality of openings through which the light emitted from the light guide passes toward the vehicle interior, the plurality of openings include a first opening and a second opening extending in an extension direction of the light guide; the light guide has a first exit surface that emits the light toward the first opening and a second exit surface that emits the light toward the second opening, the first light exit surface and the second light exit surface are provided at different positions on the same cross section in a plane direction of an imaginary plane perpendicular to the extension direction, Vehicle interior parts.
2. At least one of the first light exit surface and the second light exit surface is inclined with respect to the inward / outward direction. The vehicle interior part according to claim 1.
3. the light guide has a reflective surface that is provided at a position different from both the first exit surface and the second exit surface on the same cross section in the plane direction and that reflects the light guided inside the light guide. The vehicle interior part according to claim 1 or 2.
4. A first reflecting surface that reflects the light emitted from the first opening toward the interior side of the vehicle in the interior / exterior direction, and a second reflecting surface that reflects the light emitted from the second opening toward the interior side of the vehicle in the interior / exterior direction, are formed on the design surface of the interior member. The vehicle interior part according to claim 1 or 2.
5. the plurality of openings further include a third opening that opens toward the vehicle interior side in the interior-exterior direction, The vehicle interior part further includes a cover portion that closes the third opening, the cover portion has a light-transmitting portion that transmits the light and a light-shielding portion that blocks the light, the light guide has a third exit surface that is provided at a position different from both the first exit surface and the second exit surface on the same cross section in the plane direction and that emits the light toward the cover portion, The vehicle interior trim is configured to transmit the light emitted from the third emission surface through the light-transmitting portion, thereby emitting a light to display a pattern toward an interior side of the vehicle in the interior / exterior direction. The vehicle interior part according to claim 1 or 2.
Citation Information
Patent Citations
Lighting device for interior of cabin
JP2000142218A