JP2009051277A - Vehicular lightning device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular lightning device for lightning a vehicle member in a non-conventional and innovative emission manner. <P>SOLUTION: An opening 2a is formed at the backside of a case body 2 of a door handle device 100. An illumination device 200 is mounted so as to face the opening 2a. In the illumination device 200, two optical waveguides 6, 7 formed of transparent acrylic resins are arranged in a laminated state in their thick directions via a predetermined interval L. The light of each LEDs 9-12 is applied from the side surface of each optical waveguide 6, 7. Light scattered in each optical waveguide 6, 7 is applied to each mark 13, 14 with predetermined design marked on the backside of each corresponding optical waveguide 6, 7, and its reflection light is emitted toward an interior side P. The design of each mark part 13, 14 is three-dimensionally displayed in an emission state. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vehicle lighting device that illuminates a vehicle member.

In recent vehicles (for example, automobiles), the position of a vehicle member (for example, an inside door handle device, hereinafter referred to as a door handle device) is clear to a vehicle occupant (mainly a driver) even at night. In some cases, an illumination device is provided so as to be visually recognized (see, for example, Patent Document 1). However, in the technique disclosed in Patent Document 1, the door handle device only emits light gently, and the appearance is not good.
JP-A-2005-32565

  In view of the circumstances described above, an object of the present invention is to provide a vehicular illumination device that illuminates a vehicle member with an unprecedented novel light emission form.

Means and effects for solving the problems

The present invention for solving the above problems is as follows.
An illumination device for illuminating a vehicle member by displaying a predetermined pattern,
A light guide portion comprising a light guide plate in which a mark portion having a pattern engraved on one end surface portion of the transparent member is formed;
A light source for irradiating the light guide part with light,
The light incident on the light guide unit from the light source diffuses in the light guide unit while being reflected by one of the end surface units of the light guide unit, and reaches the mark unit formed on the one end surface unit. The diffusion path is changed and emitted from the light guide unit to the outside, and the symbol provided on the mark unit is displayed in a state of being transmitted from the light guide unit.

  The vehicle lighting device according to the present invention is configured as described above, and the design of the mark portion formed on the light guide portion of the vehicle member is displayed in a light-emitting state. As a result, the vehicle member is illuminated. For example, even at night, the vehicle occupant can easily see the vehicle member, and the design of the mark portion can be displayed in an unprecedented form. The above aesthetics are also improved.

The light guide part is formed in a form in which a plurality of light guide plates are laminated at a predetermined interval in their thickness direction,
The light source and the mark portion are provided on each of the plurality of light guide plates,
The light that enters the corresponding light guide plate from each light source and is emitted to the outside may be configured to display the symbols of the mark portions in an overlapping state.

  A light guide portion is formed by a plurality of light guide plates. Then, by providing a light source on each light guide plate and forming a mark portion on each of the light guide plates, the design of the mark portion in the light emitting state becomes brighter and they are displayed with a sense of depth (three-dimensional effect). Thereby, while the effect as an illuminating device improves, the design of a mark part can be displayed in a more novel form.

  The mark part is preferably engraved on the back surface of the light guide plate.

  By forming the mark portion farther from the vehicle occupant in the light guide plate, the sense of depth (three-dimensional effect) when displayed in a light-emitting state is further emphasized.

  Moreover, you may provide the reflecting plate for reflecting the light which injected into the said light-guide plate from the said light source in the back surface part of the backmost light-guide plate in the said light-guide part.

  Thereby, since all the light from the light guide part is emitted toward the occupant side, the brightness of the mark portion in the light emitting state is ensured even with a small or low-luminance light source.

  And the said vehicle member can be used as the inside door handle apparatus of a vehicle.

  Thereby, the part of the inside door handle apparatus at night can be illuminated, and it can contribute to a passenger | crew's exact getting off. Of course, you may provide an illuminating device in another vehicle member.

  Examples of the present invention will be described. 1 is a front view of a door handle device 100 to which a lighting device 200 is attached, FIG. 2 is a sectional view taken along line XX of FIG. 1, FIG. 3 is a sectional view taken along line YY of FIG. FIG.

  This specification demonstrates the illuminating device 200 attached to the door handle apparatus 100 which is an example of a vehicle member. First, the door handle device 100 will be described. As shown in FIGS. 1 to 3, a door handle device 100 is attached to an inner door panel 1 of a vehicle door. The door handle device 100 includes a box-shaped case body 2 whose front surface on the indoor side P is opened, a door handle 3 supported to be rotatable with respect to the case body 2, and a lock knob 4. The door handle 3 and the lock knob 4 are arranged in an overlapping state in the height direction. The door handle 3 and the lock knob 4 are rotatable about a rotation shaft 5 provided at an end portion in the left-right direction of the case body 2 (the right end portion in the drawing in the case of FIG. 1). When an occupant of a vehicle tries to get off, he puts his finger on the door handle 3 and raises the door handle 3 to the near side (indoor side P). As a result, the door is unlocked. And a door is opened by pushing a door toward an outdoor side as it is. When the door is closed, the lock knob 4 is pushed toward the inside of the case body 2 (the lock knob 4 is rotated in the clockwise direction around the rotation shaft 5), thereby causing the door handle 3 to be raised. The unlocking of the door 1 can be disabled.

  An opening 2 a is provided on the back surface (back surface) of the case body 2 of the door handle device 100. And the illuminating device 200 is attached facing this opening 2a. The illumination device 200 includes a light guide unit and a light source. The light guide unit of this embodiment includes first and second light guide plates 6 and 7. A reflective plate 8 is attached to the back surface of the second light guide plate 7 in a close contact state. Similarly, the light source is an LED (light emitting diode) that is close to one side surface of each of the light guide plates 6 and 7 and arranged at a predetermined interval in the height direction. In this embodiment, the upper first LED 9 and the lower first LED 10 for the first light guide plate 6, and the upper second LED 11 and the lower second LED 12 for the second light guide plate 7.

  As shown in FIG. 4, each of the light guide plates 6 and 7 is made of a transparent acrylic resin material. A predetermined pattern (in the case of this embodiment, an alphabet “S” contour line) is formed in a concave shape on the back surface of each light guide plate 6, 7, and the first and second mark portions 13 are formed. , 14 are formed. In the case of the present embodiment, the first and second mark portions 13 and 14 are formed at the same positions of the light guide plates 6 and 7. For this reason, there is an advantage that the first and second light guide plates 6 and 7 may be the same. Each of the mark portions 13 and 14 can be engraved with a laser on a molded acrylic resin plate or can be formed by printing. Further, when the light guide plates 6 and 7 are molded, they may be formed by protrusions provided on the molding die.

  The first and second light guide plates 6 and 7 are arranged in a laminated state with a predetermined interval L (separated by the predetermined interval L) in the thickness direction thereof. Thereby, the symbols of the mark portions 13 and 14 in the light emitting state are displayed in an overlapping state having a sense of depth (three-dimensional effect) (described later).

  The operation of the lighting device 200 of the present embodiment will be described. As shown in FIG. 5, the light emitted from the upper and lower first LEDs 9 and 10 toward the side surface of the first light guide plate 6 is the surface of the first light guide plate 6 (the lower surface in the drawing view of FIG. 5) or the back surface. The inside of the first light guide plate 6 is diffused while being reflected by (the upper surface in the drawing view of FIG. 5). When this light reaches the first mark portion 13, it is reflected by the first mark portion 13, changes its diffusion path, and is emitted from the surface of the first light guide plate 6 toward the vehicle interior side P. As a result, the design of the first mark portion 13 is transmitted through the light guide plates 6 and 7 and displayed in a light-emitting state so that the vehicle occupant can easily see the position of the door handle 3 even at night. (See FIG. 1).

  Similarly, the light emitted from the upper and lower second LEDs 11 and 12 toward the side surface of the second light guide plate 7 is the front surface (lower surface in the drawing view of FIG. 5) or the rear surface (drawing of FIG. 5). The inside of the second light guide plate 7 is diffused while being reflected by the upper surface in view). When this light reaches the second mark portion 14, it is reflected by the second mark portion 14, changes its diffusion path, and is emitted from the surface of the second light guide plate 7 toward the interior P of the vehicle. Since the reflection plate 8 is attached to the back surface of the second light guide plate 7, the light diffused in the second light guide plate 7 is reliably emitted from the surface of the second light guide plate 7 toward the vehicle interior side P. . Thereby, the design of the 2nd mark part 14 floats and is displayed in the light emission state, and the door handle 3 is illuminated. Since the light sources (first and second LEDs 9 to 12) are arranged for the respective light guide plates 6 and 7, the brightness of the light emitting state is ensured.

  Further, in the lighting device 200 of the present embodiment, since the two light guide plates 6 and 7 are arranged in a laminated state at a predetermined interval L in the thickness direction, the light guide plates 6 and 7 are transmitted through and emit light. The marks of the mark portions 13 and 14 that have come to the surface are displayed in an overlapping state, and a sense of depth (three-dimensional effect) can be felt on them. As a result, a novel display not provided in the conventional light emitting display device is made and the aesthetics of the design is improved, and the design of the mark portions 13 and 14 in the light emitting state is a visual accent.

  In the illuminating device 200 of the present embodiment, mark portions 13 and 14 are formed on the back surfaces of the respective light guide plates 6 and 7. Thereby, compared with the case where the mark parts 13 and 14 are formed in the surface of each light-guide plate 6 and 7, the mark parts 13 and 14 are formed further from the passenger | crew of a vehicle. Thereby, the depth feeling (three-dimensional effect) when the symbols of the mark portions 13 and 14 are displayed in the light emitting state is further emphasized.

  The design of each of the mark portions 13 and 14 may be any character, picture, pattern, or the like. Further, instead of forming the mark portions 13 and 14 by the outline of the character, the character itself may be formed in a concave shape.

  The light guide portion of the illumination device 200 of this embodiment is composed of two light guide plates 6 and 7 arranged in a stacked state with a predetermined interval L in the thickness direction. Thereby, there exists an advantage that the feeling of depth (three-dimensional effect) of each mark part 13 and 14 of a light emission state is felt. One or three or more light guide plates may be provided.

  For example, when the ignition key switch is turned on, the lighting device 200 may light up the LEDs 9 to 12 to always display the symbols of the mark portions 13 and 14 in a light emitting state. Moreover, when the lamp switch of the vehicle is turned on regardless of whether the ignition key switch is turned on or off, the LEDs 9 to 12 may be turned on to display the symbols of the mark portions 13 and 14 in a light emitting state. Further, in the normal driving state, the symbols 13 and 14 are not displayed. For example, in conjunction with a vehicle collision detection switch (not shown), an emergency situation is given to the occupant when the collision detection switch is activated (emergency). You may use as a means to alert | report.

  By changing the light emission colors of the two LEDs 9 to 12 arranged on the light guide plates 6 and 7, the colors of the symbols 13 and 14 to be displayed can be changed depending on the use condition of the vehicle (for example, at night). It may be changed whether or not there is normal driving (during low speed driving or high speed driving).

  The lighting device 200 of the present embodiment is attached to the door handle device 100. However, you may attach to vehicle members (for example, glove box) other than the door handle apparatus 100. FIG.

It is a front view of the door handle apparatus 100 with which the illuminating device 200 was attached. It is the XX sectional view taken on the line of FIG. It is the YY sectional view taken on the line of FIG. It is a perspective view of the illuminating device. It is action | operation explanatory drawing of the luminaire 200.

Explanation of symbols

100 Inside door handle device (vehicle member)
200 Illumination device 6 1st light guide plate (light guide part)
7 Second light guide plate (light guide)
8 reflector 9 upper first LED (light source)
10 Lower first LED (light source)
11 Upper second LED (light source)
12 Lower second LED (light source)
13 First mark part (mark part)
14 Second mark part (mark part)
L Predetermined interval

Claims (5)

An illumination device for illuminating a vehicle member by displaying a predetermined pattern,
A light guide portion comprising a light guide plate in which a mark portion having a pattern engraved on one end surface portion of the transparent member is formed;
A light source for irradiating the light guide part with light,
The light incident on the light guide unit from the light source diffuses in the light guide unit while being reflected by one of the end surface units of the light guide unit, and reaches the mark unit formed on the one end surface unit. The vehicular lighting device, wherein the diffusing path is changed and is emitted from the light guide unit to the outside, and the symbol provided on the mark unit is displayed through the light guide unit. The light guide part is formed in a form in which a plurality of light guide plates are laminated at a predetermined interval in their thickness direction,
The light source and the mark portion are provided on each of the plurality of light guide plates,
The vehicle lighting device according to claim 1, wherein the light incident on the corresponding light guide plate from each light source and emitted to the outside displays the symbols of the mark portions in an overlapping state.   The vehicle illumination device according to claim 1, wherein the mark portion is carved on a back surface of the light guide plate.   4. The reflection plate for reflecting the light incident on the light guide plate from the light source is provided on a back surface portion of the innermost light guide plate in the light guide portion. The illumination device for vehicles of any one of Claims.   The vehicle lighting device according to claim 1, wherein the vehicle member is an inside door handle device of a vehicle.

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