JP2013159229A - Vehicle lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle lighting device capable of lighting the entire floor surface in a vehicle cabin.SOLUTION: A vehicle lighting device 1 is arranged in a cabin of a vehicle, and includes a seat rail 3 arranged on a floor surface 5 for slidably supporting a seat 4, a rod-shaped light guide body 100 arranged on an upper surface part 21 of the seat rail 3, and a molding 2 to cover the rod-shaped light guide body 100. The molding 2 is provided with light emitting units 10 on the upper surface part 21 and a flange part 23. The light emitting units 10 are arranged continuously or intermittently straight along the seat rail 3.

Description

  The present invention relates to a vehicular illumination device used in a passenger compartment of an automobile.

2. Description of the Related Art Conventionally, a vehicular illumination device that illuminates a vehicle interior is arranged in the interior of an automobile.
As a vehicular illumination device, one that is arranged on a ceiling and illuminates a vehicle interior from above is often used (Patent Document 1). In addition, as a vehicular illumination device arranged other than the ceiling, spot illumination is known which is arranged on a wall surface or the like in a passenger compartment and partially illuminates the feet of a passenger.

Japanese Patent No. 4735983

However, the above-described vehicle lighting device has the following problems.
In the vehicle lighting device, light is emitted from the ceiling or wall surface toward the floor surface. Therefore, it is obstructed by the occupant's body and seat, and a portion that is shaded without light reaching the floor surface tends to occur. Thereby, light does not reach most of the floor surface, and the visibility on the floor surface is significantly reduced.

  The present invention has been made in view of the above-described background, and it is an object of the present invention to provide a vehicular illumination device that can improve the effect in the passenger compartment and efficiently illuminate the passenger compartment.

One aspect of the present invention is a vehicle lighting device arranged in a vehicle cabin of a vehicle,
A vehicle lighting device comprising: a light emitting portion arranged linearly continuously or intermittently along a seat rail disposed on a floor surface that slidably supports a seat (claim 1). ).

  As described above, the vehicle lighting device includes the light emitting units arranged linearly continuously or intermittently along the seat rail arranged on the floor surface. Therefore, the distance between the light emitting unit and the floor surface is short, and it is difficult to place a shielding object that blocks light between them. Therefore, it can suppress that the light emitted from the said light emission part is interrupted by the shield. Thereby, the range which becomes a shadow on a floor surface can be made small, and a vehicle interior can be illuminated efficiently.

  In addition, by using the vehicle lighting device as indoor lighting, it is possible to provide a unique indoor effect different from conventional lighting provided on the ceiling or wall surface by light emitted from the floor surface side. Thereby, the presentation effect in a vehicle interior can be improved significantly.

  As described above, according to the vehicular illumination device, it is possible to improve the effect in the passenger compartment and efficiently illuminate the passenger compartment.

Explanatory drawing which shows arrangement | positioning of the illuminating device for vehicles in Example 1. FIG. Sectional drawing of the illuminating device for vehicles in Example 1. FIG. 2 is a perspective cross-sectional view of a molding and a rod-shaped light guide in Example 1. FIG. FIG. 2 is a top view of the vehicular lighting device according to the first embodiment. Explanatory drawing which shows arrangement | positioning of the illuminating device for vehicles in Example 2. FIG. The top view of the illuminating device for vehicles in Example 2. FIG.

  In the vehicle lighting device, a molding that covers a part of the seat rail from above is disposed on the floor surface, and the light emitting unit is provided on at least a part of the upper surface and the side surface of the molding. (Claim 2). In this case, the design and the degree of freedom in the vehicle lighting device can be improved.

  Further, a rod-shaped light guide is disposed below the molding, and the surface of the rod-shaped light guide emits light by light introduced from one or both ends of the rod-shaped light guide. The light emitted from the light source may be led out to the outside from the light emitting unit (claim 3). The rod-shaped light guide has a property of uniformly emitting light on the surface by the introduced light. Thereby, the said light emission part can be light-emitted uniformly, and the whole floor surface can be illuminated uniformly.

  The molding may be formed of a material that can transmit light, and the surface of a portion other than the light emitting portion may be covered with a light shielding film having a light shielding property. In this case, by providing the light shielding film, it is possible to improve the design and the degree of freedom in the vehicle lighting device.

  In addition, at least a part of the light emitting unit may be provided corresponding to a specific slide position of the sheet, and may have a mark function indicating the specific slide position. Conventionally, a mark or label is provided as a mark for indicating a specific slide position on the sheet, but there is a problem that visibility is poor at night. As described above, by using at least a part of the light emitting unit as the mark function, the specific slide position can be easily visually recognized even at night.

  Further, the molding includes a pair of side wall portions covering the side surfaces of the rod-shaped light guide, an upper surface portion covering the upper surface of the rod-shaped light guide and connecting the upper ends of the pair of side wall portions, and the pair of side wall portions. A flange extending from the upper end toward the opposite side of the upper surface portion, and a light emitting portion may be included in at least a part of the upper surface portion and the tip of the flange portion. Item 6). In this case, it is possible to achieve both the function of preventing entry of foreign matter into the seat rail and the function of blindfolding, which has been conventionally required for the mall, and the illumination function of the vehicle lighting device described above.

Example 1
The Example concerning a vehicle illuminating device is described with reference to FIGS.
As shown in FIG. 1, the vehicular lighting device 1 is arranged in a vehicle interior of a vehicle, and is continuous or intermittent along a seat rail 3 arranged on a floor surface 5 that slidably supports a seat 4. The light emitting unit 10 is arranged in a straight line.

The vehicle lighting device 1 of this example will be described in more detail.
As shown in FIG. 2, the vehicular lighting device 1 covers the bar-shaped light guide 100 and emits light while covering the seat rail 3 disposed on the floor surface 5, the bar-shaped light guide 100 disposed along the seat rail 3. And a molding 2 having a portion 10.

  As shown in FIG. 2, the floor surface 5 on which the seat rail 3 is disposed includes a floor panel 51 that constitutes the vehicle body of the vehicle and to which the seat rail 3 is fixed, and a raising member 52 that is sequentially stacked on the upper surface. A carpet 53 and a floor mat 54 are included. Cutout holes corresponding to the shape of the seat rail 3 are formed in portions corresponding to the seat rail 3 in the raising material 52, the carpet 53, and the floor mat 54.

  As shown in FIG. 1, a pair of seats 4 arranged side by side in a vehicle interior of a vehicle has a pair of upper rails 41 (FIG. 2) arranged at positions corresponding to the two seat rails 3 on the lower surface thereof. ) And is slidable on the seat rail 3. The seat 4 may be either a front seat including a driver's seat and a passenger seat of the vehicle and a rear seat disposed behind the front seat.

  As shown in FIG. 1, the seat rail 3 is disposed along the front-rear direction of the vehicle. As shown in FIG. 2, the seat rail 3 includes a rail bottom surface portion 31 that contacts the floor panel 51, a pair of rail outer wall portions 32 that extend upward from the left and right ends of the rail bottom surface portion 31, and each rail outer wall portion. The rail upper surface portion 33 extends inward in the left-right direction from the upper end of 32, and the rail inner wall portion 34 hangs downward from the inner end of the rail upper surface portion 33. The rail outer wall portion 32 is formed by connecting a portion extending upward from the left and right ends of the rail bottom surface portion 31, a portion extending outward in the left-right direction from the upper end thereof, and a portion extending further upward from the end portion.

  As shown in FIG. 2, a rod-shaped light guide 100 is disposed on one of the pair of rail upper surfaces 33 in the seat rail 3. The rod-shaped light guide 100 is made of a polycarbonate resin that can transmit light formed in a rectangular column shape having substantially the same length as the seat rail 3, and the surface is formed by light introduced from both ends arranged in the longitudinal direction. It is configured to emit light. In addition to the polycarbonate resin, various materials such as an acrylic resin and a cycloolefin resin can be used as the material of the rod-shaped light guide 100.

  As shown in FIGS. 2 and 3, the other rail upper surface portion 33 of the seat rail 3 is provided with a molding 200 for preventing foreign matters from entering the seat rail 3 and blinding it. In this example, the rod-shaped light guide 100 is disposed on one of the pair of rail upper surface portions 33, but the rod-shaped light guide 100 may be disposed on both of the pair of rail upper surface portions 33.

  As shown in FIG. 1, light source portions 101 each having an LED bulb are disposed at both ends of the rod-shaped light guide 100. In this example, the LED bulb forms a single light source using red, green, and blue light emitting diodes, and an arbitrary emission color can be obtained by adjusting the amount of light of each light emitting diode. . The light source unit 101 can also perform various controls such as turning on and off in conjunction with operations of a courtesy switch that detects opening and closing of a door, a speed sensor, a small lamp, a door lock, and the like.

  In this example, the light source units 101 are arranged at both ends of the rod-shaped light guide 100. However, the arrangement position of the light source unit 100 can be freely set according to the length of the rod-shaped light guide 100 or the like. it can. For example, when the length of the rod-shaped light guide 100 is short, one light source unit 101 can be arranged at one end, and when the length of the rod-shaped light guide 100 is long, the rod-shaped light guide 100 can be arranged. It is also possible to divide the light body 100 into two and arrange the light source portions 101 at both ends of each rod-shaped light guide 100.

  As shown in FIGS. 3 and 4, the molding 2 disposed on the upper surface of the rod-shaped light guide 100 is formed of a material that can transmit light, and a pair of side wall portions 22 that covers the side surfaces of the rod-shaped light guide 100. And an upper surface part 21 that covers the upper surface of the rod-shaped light guide 100 and connects the upper ends of the pair of side wall parts 22, and a flange part 23 that extends from the upper end of the side wall part 22 toward the upper surface part 21. I have. At the center of the upper surface part 21 and the tip of the flange part 23, the light emitting part 10 formed linearly along the longitudinal direction is disposed. Further, the surface exposed to the vehicle interior other than the light emitting unit 10 is covered with a light shielding film 24 having a light shielding property. In addition, the light emitting part 10 formed on the upper surface part 21 is divided at equal intervals by the light shielding film 24 and is formed intermittently. Further, the light emitting part 10 formed in the collar part 23 is continuously formed in the entire length of the molding 2.

  As the material of the molding 2, various materials that transmit light can be used. In order to prevent damage and the like, it is preferable to use a resin material such as a polycarbonate resin, a polyolefin resin, and an acrylic resin.

  In the vehicle lighting device 1 of the present example configured as described above, light emitted from the light source unit 101 is introduced from both ends of the rod-shaped light guide 100, and the surface thereof emits light. The light emitted from the surface of the rod-shaped light guide 100 is transmitted through the molding 2 and emitted from the light emitting unit 10 disposed on the upper surface portion 21 and the flange portion 23 to the vehicle interior.

Next, the effect in this example is demonstrated.
As described above, the vehicle lighting device 1 includes the light emitting units 10 that are continuously or intermittently arranged in a straight line along the seat rail 3 disposed on the floor surface 55. For this reason, the distance between the light emitting unit 10 and the floor surface 55 is short, and it is difficult to place a shielding object that blocks light between the two. Therefore, it can suppress that the light emitted from the light emission part 10 is interrupted by the shield. Thereby, the range which becomes a shadow in the floor surface 55 can be made small, and a vehicle interior can be illuminated efficiently.

  Further, by using the vehicular lighting device 1 as room effect lighting, a unique room effect different from conventional lighting provided on the ceiling or wall surface can be provided by light emitted from the floor surface 55 side. Thereby, the presentation effect in a vehicle interior can be improved significantly.

  The floor 5 is provided with a molding 2 that covers a part of the seat rail 3 from above, and a light emitting unit 10 that emits light toward the upper surface side and the side surface of the molding 2 is provided. The molding 2 is formed of a material that can transmit light, and the surface of the portion other than the light emitting unit 10 is covered with a light shielding film 24 having a light shielding property. Therefore, the designability and the degree of freedom in the vehicle lighting device 1 can be improved.

  Further, a rod-shaped light guide 100 is disposed below the molding 2, and the surface of the rod-shaped light guide 100 is emitted by light introduced from one or both ends of the rod-shaped light guide 100, and the rod-shaped light guide. The light emitted from 100 is led out from the light emitting unit 10 to the outside. The rod-shaped light guide 100 has a characteristic of uniformly emitting the surface by the introduced light. Thereby, the light emission part 10 can be light-emitted uniformly, and the whole floor surface 5 can be illuminated uniformly.

  The molding 2 includes a pair of side wall portions 22 that cover the side surfaces of the rod-shaped light guide 100, an upper surface portion 21 that covers the upper surface of the rod-shaped light guide body 100 and connects the upper ends of the pair of side wall portions 22, and a pair of side walls. A flange portion 23 is provided extending from the upper end of the portion 22 toward the side opposite to the upper surface portion 21. In addition, the molding 2 includes the light emitting unit 10 on the upper surface portion 21 and the flange portion 23. Therefore, it is possible to make the molding 2 compatible with both the function of preventing entry of foreign matter into the seat rail 3 and the blind function, which have been conventionally required for the molding 2, and the illumination function of the vehicle lighting device 1 described above.

  As described above, according to the vehicular illumination device 1 of the present example, it is possible to improve the effect in the vehicle interior and efficiently illuminate the vehicle interior.

(Example 2)
As shown in FIGS. 5 and 6, this example shows the vehicular lighting device 1 having a mark function provided corresponding to a specific slide position of the seat 4.
As shown in FIG. 5, the seat 4 of this example is slidably held on the seat rail 3 and the wall seat rail 35 disposed on the floor surface 5 and the vehicle interior wall portion 55, respectively. The seat rail 3 and the seat 4 arranged on the floor surface 5 are connected via an upper rail 41 configured to be slidable on the seat rail 3 and a seat base portion 42 arranged on the bottom of the seat 4. Has been. The upper rail 41 and the seat base portion 42 are arranged to be separable by moving the seat 4 to a specific slide position and operating an operation lever (not shown).

  The wall seat rail 35 and the seat 4 arranged in the passenger compartment wall 55 are connected via a wall upper rail 43 configured to be slidable on the wall seat rail 35. The wall upper rail 43 relatively includes a seat side member 431 fixed to the seat 4, a rail side member (not shown) connected to the wall seat rail 35, and the seat side member 431 and the rail side member. And a rotating part (not shown) that is rotatably connected. When the seat 4 is moved to a specific slide position and the upper rail 41 and the seat base portion 42 are separated from each other, the seat 4 is lifted while being rotated by the rotating portion of the wall upper rail 43 to store the seat 4. Can do.

As shown in FIGS. 5 and 6, the molding 2 in the vehicular lighting device 1 is formed with a light emitting portion 11 that functions as a mark. The light emitting unit 11 is formed so that its length dimension is about half that of the other light emitting units 10, and the upper rail when the front end 110 arranges the seat 4 at a specific slide position. 4 is formed so as to correspond to the rear end portion 410. Therefore, the seat 4 can be arranged at a specific slide position by matching the position of the front end 110 of the light emitting unit 11 with the position of the rear end 410 of the upper rail 4.
Other configurations are the same as those of the first embodiment.

  In the vehicular lighting device 1 of this example, the light emitting unit 11 is provided corresponding to a specific slide position of the seat 4 and has a mark function indicating the specific slide position. Conventionally, an inscription or label is provided as a mark for indicating a specific slide position on the seat 4, but there is a problem that the visibility is poor at night. As described above, by using the light emitting unit 11 as the mark function, a specific slide position can be easily visually recognized even at night.

DESCRIPTION OF SYMBOLS 1 Vehicle lighting device 10, 11 Light emission part 2 Mall 3 Seat rail 4 Seat 5 Floor surface

Claims (6)

A vehicular lighting device arranged in a vehicle cabin,
A vehicular lighting device comprising: a light-emitting portion arranged continuously or intermittently linearly along a seat rail disposed on a floor surface that slidably supports a seat.   The lighting device for a vehicle according to claim 1, wherein a molding that covers a part of the seat rail from above is disposed on the floor surface, and the light emitting unit is provided on at least a part of an upper surface and a side surface of the molding. A vehicular lighting device, comprising:   The lighting device for a vehicle according to claim 2, wherein a rod-shaped light guide is disposed below the molding, and light of the rod-shaped light guide is introduced by light introduced from one or both ends of the rod-shaped light guide. A vehicular lighting device, characterized in that the surface emits light, and the light emitted from the rod-shaped light guide is led out from the light emitting portion to the outside.   4. The vehicular lighting device according to claim 2, wherein the molding is made of a material that can transmit light, and a surface of a portion other than the light emitting portion is covered with a light shielding film having a light shielding property. An illumination device for a vehicle characterized by the above.   5. The vehicular lighting device according to claim 2, wherein at least a part of the light emitting unit is provided corresponding to a specific slide position of the seat and indicates a specific slide position. A vehicular lighting device comprising:   6. The vehicular lighting device according to claim 2, wherein the molding covers a pair of side walls covering a side surface of the rod-shaped light guide and an upper surface of the rod-shaped light guide and the pair. An upper surface portion connecting upper ends of the side wall portions, and a flange portion extending from the upper ends of the pair of side wall portions toward the opposite side of the upper surface portion, and the upper surface portion and the flange portion A vehicle lighting device comprising a light emitting portion at least at a part of the tip.

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