JP6947994B2 - Decorative parts for vehicles - Google Patents

Description

The present invention relates to a decorative member for a vehicle, and more particularly to a decorative member for a vehicle which has designability and practicality inside the vehicle and can enhance the commercial value.

Decorative parts for vehicles such as decorative parts used for lighting of vehicles are already known, and some of them function as decorative lighting when the vehicle interior becomes dark, such as at night.
For example, as an example of a vehicle decorative component having such a lighting function, a courtesy lamp attached to the vehicle interior side of a vehicle door is known.
The courtesy lamp generally lights up when the door opens, illuminates the feet of the occupants to support getting on and off, and notifies the vehicles and people behind them that the door is open.
Such luminescent decorative members are currently arranged in various places in the vehicle interior such as door pockets, pillars, door speakers, cup holders, etc., and high demand is expected worldwide. Various vehicles equipped with these have already been proposed.
Under such circumstances, it is desired to develop a light emitting member that emits light reliably in order to ensure good visibility.
That is, various techniques have been developed for visually adjusting the emitted light so as to surely advance in a predetermined direction (see, for example, Patent Document 1).

For example, Patent Document 1 discloses a light source device including a light source and a light guide body.
In the present technology, the light guide body is formed in a long transparent cylindrical shape, and a light source (LED) is provided at one end thereof.
Further, the bottom of the light guide body has a prism surface having a concave-convex shape (repeated triangular pyramid shape), and the light incident from the light source is reflected in a predetermined direction on this prism surface and emitted light in a predetermined direction. Is released.
With this configuration, it is possible to emit light from a light source provided at one end in a predetermined direction.

Japanese Unexamined Patent Publication No. 2013-051108

On the other hand, there has been a demand for applying the light emitting member technology capable of adjusting the light emitting direction to a desired direction to the interior decoration of a vehicle.
However, when it is applied to interior decoration of a vehicle, there is a problem of ease of assembly and a problem that it is necessary to ensure high rigidity and durability because it is arranged in a position where it can be touched by an occupant. , It was difficult to easily convert it to interior decoration.
Further, when used for interior decoration of a vehicle having a large length, it is necessary to secure the same amount of light as the amount of light near the light source even at a position far from the light source.
As described above, the development of a decorative member for a vehicle that can be suitably applied to the interior decoration of a vehicle has been strongly desired.

The present invention has been made in view of the above problems, and an object of the present invention is that it can be suitably applied to interior decoration of a vehicle, has good workability, and guides emitted light evenly in a predetermined direction. It is to provide a decorative member for a vehicle which can be used.
Another object of the present invention is to provide a decorative member for a vehicle capable of ensuring higher rigidity and durability.

According to the vehicle decoration member of the present invention, the subject is a vehicle decoration component having a light emitting region that is installed in a vehicle and emits light, and the vehicle decoration component is a light source that emits light. , And at least a light guide lens in which the light source is arranged at one end and emits light from the light source in a long shape along the shape. cage, the light guide lens, a concave portion of the light output direction opposite surface is formed along the elongated shape, the gate cut portion is disposed in the vehicle skeleton side than the light emitting surface It will be solved by.
At this time, the light emitting surface is configured as a vehicle inner surface of a light emitting portion extending inside the vehicle from the step portion, and the gate cut portion extends in a direction intersecting the vehicle inner / outer direction in which the light emitting portion extends. It is good to be there.

Further, the light guide lens has an extending portion extending from the lower end portion of the step portion to the vehicle skeleton side, and the gate cut portion is arranged at the end portion of the extending portion on the vehicle skeleton side. It should be done .

Further, it is preferable that the gate cut portion is arranged below the lower end portion of the recess .
Similarly, it is preferable that the recess has an optical path adjusted so that the introduction port of the light guide lens at the time of molding and the gate cut portion cannot be seen by the occupant .

Further, it is preferable that the vehicle decorative part is at least a part of a vehicle door lining including a door opener, and the gate cut portion is hidden by the door opener .

Further, the light guide lens includes a step portion that is arranged below the light emitting surface and at the same vertical position as the door opener, and the gate cut portion is arranged on the vehicle skeleton side of the step portion. Suitable .

Further, the vehicle door lining includes a door grip, an operating device mounting portion, a base, and a light guide lens mounting portion, and is arranged between the light guide lens mounting portion and the door opener. Is suitable.

According to the vehicle decoration member of claim 1, since the light diffusing part is provided in the recessed part, a part of the human body (fingers, etc.) or other parts come into contact with the light diffusing part at the time of assembly or the like. Can be effectively avoided, the mounting work is improved, the light diffusing portion is protected, and good light emission without unevenness can be realized.
According to the decorative member for a vehicle according to claim 2, since the light diffusing portion can be provided at a position deeper than the opening space of the first recess on the exit side one step, the light diffusing portion of the human body during assembly or the like can be provided. It is possible to more effectively avoid contact with some parts (fingers, etc.) and other parts, the installation work is better, the light diffusing part is protected, and good light emission without unevenness can be realized. can.
According to the decorative member for a vehicle of claim 3, the width of the frontage of the second recess can be set small, and the effect of claim 1 can be further enhanced.
According to the decorative member for a vehicle of claim 4, the light emission can be kept better.
According to the decorative members for vehicles of claims 5 and 6, uniform light emission can be maintained regardless of the distance from the light source.
According to the decorative member for a vehicle according to claim 7, it is possible to preferably diffuse light, and it is possible to realize better light emission.
According to the decorative member for a vehicle according to claim 8, it is possible to provide a cushion function by a stress relief portion while maintaining mounting rigidity.
According to the decorative member for a vehicle of claim 9, it is possible to control the light emission to a desired form by adjusting the optical path.

It is a figure which shows the upper part of the door lining for a vehicle using the decorative member for a vehicle which concerns on one Embodiment of this invention. FIG. 1 is a cross-sectional view taken along the line AA of FIG. It is sectional drawing which shows the light emitting state of the decorative member for a vehicle which concerns on one Embodiment of this invention. It is a perspective view which shows the light guide lens which concerns on one Embodiment of this invention. It is a schematic diagram which shows the side surface of the light guide lens which concerns on one Embodiment of this invention. It is an optical path adjustment explanatory view of the light guide body lens which concerns on one Embodiment of this invention. It is a light emission adjustment explanatory view of the light guide lens which concerns on one Embodiment of this invention. It is a schematic diagram which shows the shape of the light diffusing part of the light guide lens which concerns on one Embodiment of this invention. It is explanatory drawing which shows the light emission unevenness elimination mechanism of the light guide lens which concerns on one Embodiment of this invention (introduction mark at the time of molding). It is explanatory drawing which shows the light emission unevenness elimination mechanism of the light guide lens which concerns on one Embodiment of this invention (gate cut part). It is explanatory drawing which shows the correspondence force mechanism of the light guide body lens attachment part which concerns on one Embodiment of this invention. FIG. 11 is a cross-sectional view taken along the line FF of FIG. FIG. 11 is a cross-sectional view taken along the line GG of FIG. FIG. 11 is a cross-sectional view taken along the line HH of FIG. It is explanatory drawing which shows the rib position of the light guide body lens mounting part which concerns on one Embodiment of this invention. It is sectional drawing which concerns on the modification example of the light guide lens which concerns on one Embodiment of this invention.

Hereinafter, a vehicle decorative member according to an embodiment of the present invention (hereinafter, the present embodiment) will be described with reference to each figure.
It should be noted that the embodiments described below are merely examples showing the application of the present invention, and do not limit the present invention.
That is, the shapes, dimensions, arrangements, etc. of the members described below can be changed and improved without departing from the gist of the present invention, and it goes without saying that the present invention includes equivalents thereof.

1 to 15 show an embodiment of the present invention, FIG. 1 is a diagram showing an upper portion of a vehicle door lining using a vehicle decorative member, and FIG. 2 is a diagram shown in FIG. 1A. FIG. 3 is a line sectional view, FIG. 3 is a sectional explanatory view showing a light emitting state of a decorative member for a vehicle, FIG. 4 is a perspective view showing a light guide lens, FIG. 5 is a schematic view showing a side surface of the light guide lens, and FIG. An explanatory diagram of light path adjustment of the light guide lens, FIG. 7 is an explanatory diagram of light emission adjustment of the light guide lens, FIG. 8 is a schematic diagram showing the shape of the light diffusing portion of the light guide lens, and FIG. 9 is a light emission unevenness of the light guide lens. It is explanatory drawing which shows the elimination mechanism (introduction mark at the time of molding), FIG. 10 is an explanatory view which shows the light emission unevenness elimination mechanism of a light guide body lens (gate cut part), and FIG. Explanatory view showing the force mechanism, FIG. 12 is a sectional view taken along line FF of FIG. 11, FIG. 13 is a sectional view taken along line GG of FIG. 11, FIG. 14 is a sectional view taken along line HF of FIG. An explanatory view showing a rib position of a light body lens mounting portion, and FIG. 16 is a cross-sectional explanatory view according to a modified example of the light guide body lens.

In the following description, the front-rear direction of the vehicle means the front-rear direction during normal driving, and the inside of the vehicle (hereinafter, also simply referred to as the inside) is the passenger compartment side (the interior side of the vehicle). That is, the outside of the vehicle (hereinafter, also simply referred to as the outside) means the outside of the vehicle. Further, in the following description, the upper side (lower side) means the upper side (lower side) in a state of being assembled to the vehicle body.

In the following, as an example of the vehicle decorative parts according to the present embodiment, the use and configuration of the door lining, that is, the interior parts used for the vehicle door lining R (hereinafter referred to as "decorative member S") will be described. explain.
In explaining the decorative member S, first, the overall configuration of the vehicle door lining R to which the decorative member S is attached will be outlined with reference to FIG.

<Overall configuration of vehicle door lining R>
The vehicle door lining R decorates the inside of the vehicle door, and is composed of a group of parts attached to a door inner panel (not shown).
As shown in FIG. 1, as a component constituting the vehicle door lining R, there are a door opener 2, a door grip 3, and the like in addition to the decorative member S, and these are attached to the base 4 and configured.
The decorative member S according to the present embodiment is arranged at a boundary portion between the operating device mounting portion 31 of the door grip 3 and the base 4, and is configured to emit light at that portion.

The decorative member S according to the present embodiment functions as a lighting device and corresponds to a “vehicle decorative member”.
The configuration of the decorative member S will be described with reference to FIGS. 1 to 5.
As shown in FIGS. 2 to 5, the decorative member according to the present embodiment includes a light source 11 and a light guide lens 12.
The light source 11 is an LED lamp, and is supported in a state of being held by a retainer.
The light guide lens 12 is a transparent long member, and has both a function as a lens and a function as a light guide.

The light guide lens 12 includes a light emitting unit 12A and an incoming light emitting unit 12B.
The light emitting portion 12A is a portion extending in a substantially prismatic shape, and the lens tip portion 121 on the free end side thereof is formed at the boundary portion between the operating device mounting portion 31 of the door grip 3 and the base 4. It is exposed from the long gap (see in particular, FIGS. 2 and 3).
The gap formed at the boundary between the operating device mounting portion 31 of the door grip 3 and the base 4 is hereinafter referred to as “lens tip support portion K”.

The light guide unit 12B is a long dome-shaped portion extending below the light emitting unit 12A.
This dome-shaped space is referred to as "first recess 122".
Further, the top surface portion of the first recess 122 (the surface portion on the light emitting portion 12A side, which is the bottom surface when viewed as the inner surface of the concave shape) is wider than the first recess 122 (distance in the left-right direction of the vehicle). The second recess 123 having a small size is formed in a long dome shape.
That is, the second recess 123 is a recess hollowed out in the direction of the light emitting portion 12A, and the light guide portion 12B is formed in a two-stage dome shape composed of the first recess 122 and the second recess 123. (In particular, see FIGS. 2 and 5).

A light diffusing portion 123a is formed on the top surface portion of the second recess 123 (the surface portion on the light emitting portion 12A side, which is the bottom surface when viewed as the inner side surface of the concave shape).
The light diffusing portion 123a is a portion formed on a rough surface for diffusing incident light from the light source 11, and is formed by, for example, a technique such as laser etching, etching, prism cutting, or sandblasting. The configuration will be described in detail when the characteristics of the light guide lens 12 are described.

As described above, in the present embodiment, the light guide portion 12B is formed in a two-stage dome shape composed of the first recess 122 and the second recess 123, and the light diffusion portion 123a has a narrow frontage. It was decided to form it on the top surface portion of the second recess 123 (the surface portion on the light emitting portion 12A side, which is the bottom surface when viewed as the inner surface of the concave shape).
Therefore, it is possible to effectively prevent the human body from coming into contact with the light diffusing unit 123a or other parts from coming into contact with the light diffusing unit 123a during assembly work or the like.
Therefore, it is possible to effectively protect the light diffusing portion 123a, which is a delicate portion in the diffusing of light, and it is possible to realize high-quality decorative light emission.

A light source 11 is installed at one end of the light guide lens 12 configured in this way (see FIG. 1), and the light emitted from the light source is a first formed in the incoming light guide portion 12B of the light guide lens. It passes through the recess 122 and the second recess 123, is diffused by the light diffusing portion 123a, and is emitted from the light emitting portion 12A (see FIGS. 3 and 5).
As described above, since the tip of the light emitting portion 12A is exposed from the lens tip supporting portion K into the vehicle interior, the light from the light source is emitted into the vehicle interior, and the light emission is visually recognized by the occupant. Become.

Next, the characteristics of the light guide lens 12 will be described.
The light guide lens 12 according to the present embodiment can adjust the optical path.
That is, as shown in FIG. 6, the optical path (emission direction) can be changed by changing the inclination angle of the lens tip portion 121 of the light emission portion 12A.
Further, by changing the inclination angle of the top surface portion (the surface portion on the light emitting portion 12A side, which is the bottom surface when viewed as the inner side surface of the concave shape) of the second recess 123 of the light inlet / light guide portion 12B, also It is possible to change the optical path (emission direction).
By adjusting the angle of one or both, the optical path can be changed in a desired direction.

Next, the details of the cross-sectional shape of the light guide lens 12 will be described with reference to FIG. 7.
The cross-sectional area of the light guide lens 12 is not the same area, but by gradually changing the area, for example, as shown in FIG. 7, it is possible to realize uniform light emission or to form light and dark.
Further, by increasing the cross-sectional area of the light guide lens 12 as the distance from the light source 11 increases, it is possible to compensate for the gradually weakening amount of light and realize uniform light emission.
Similarly, by increasing the formation area of the light diffusing portion 123a as the distance from the light source 11 increases, it is possible to compensate for the gradually weakening amount of light and realize uniform light emission.

Further, FIG. 8 schematically shows the cross-sectional shape of the light diffusing portion 123a.
In the present embodiment, the light diffusing portion 123a is formed as a rough surface by continuously forming a shape hollowed out so as to be convex in the light emitting portion 12A direction.
In this embodiment, it is desirable that the hollow shape is not a perfect dome shape but a wavy shape.
That is, the light diffusing portion is formed so as to form a corrugated shape in which two round shapes that are convex in the direction away from the light source 11 are combined.
With this configuration, the diffusion of light can be increased.

Further, since the light guide lens 12 is a molded product, the introduction port mark Q1 and the gate cut portion Q2 remain at the time of molding.
Therefore, when the light is emitted, there is a possibility that the introduction port mark Q1 at the time of molding and the gate cut portion Q2 shine and emerge.
However, as shown in FIGS. 9 and 10, by finely adjusting the shape of the light guide lens 12 and changing the optical path, the positions of the introduction port Q1 and the gate cut portion Q2 at the time of molding are removed from the optical path from the occupant. It is possible to design it so that it cannot be seen.

The responsive force mechanism of the illuminant lens mounting portion will be described with reference to FIGS. 11 to 14.
A light guide lens mounting portion 5 for mounting the light guide lens 12 is formed on the base 4.
The light guide lens mounting portion 5 is formed so as to bridge between a plurality of first support portions 51 formed in an L-shaped hook shape and adjacent first support portions 51, 51. And a third support portion 53 extending so as to connect the upper end portions of the plurality of first support portions 51, and a portion having a substantially U-shaped cross section.
First ribs 51A and 51A (convex upward) extending in the left-right direction of the vehicle are formed on both sides of the upper surface of the first support portion 51 on the light guide lens mounting side (horizontally arranged surface side) in the front-rear direction. The fourth ribs 51B and 51B extending in the vertical direction are formed on the base end side (the side arranged in the vertical direction).
Further, the third support portion 53 is formed with a third rib 53A (convex downward) extending in the left-right direction of the vehicle.
Further, the second support portion 52 is formed with a claw portion 52A that jumps upward outward.

As shown in FIG. 12, in the FF line cross-sectional portion of FIG. 11, the light guide lens 12 has an inner end portion (a part of the lens tip support portion K) and a claw portion of the third support portion 53. It is supported by the free end portion of 52A, and these portions serve as the stress receiving portion U1 with respect to the stress P1.
On the other hand, the inner lower end portion of the incoming light guide portion 12B is not in contact with the second support portion 52, and the portion is a stress relief portion U2.

Similarly, as shown in FIG. 13, in the GG line cross section of FIG. 11, both the inner and outer lower ends of the incoming light guide portion 12B are supported by the first rib 51A, and the outer end surface of the incoming light guide portion 12B is It is in contact with the fourth rib 51B formed on the side surface of the base end of the first support portion 51, and this portion serves as a stress receiving portion U1 with respect to the stress P2 and the stress P3.
On the other hand, the third support portion 53 and the outer upper portion of the incoming light guide portion 12B are not in contact with each other, and this portion serves as a stress relief portion U2.

Further, as shown in FIG. 14, in the cross section taken along the line HH of FIG. 11, the third rib 53A is in contact with the outer upper portion of the incoming light guide portion 12B, and the portion is in contact with the stress receiving portion U1 with respect to the stress P4. It has become.
On the other hand, neither the inner and outer lower ends of the light inlet / light guide portion 12B are in contact with the first support portion 51, and this portion is the stress relief portion U2.
As shown in FIG. 15, the positions of the third rib 53A and the first ribs 51A and 51A are configured so as not to be aligned with each other.
As a result, the stress is further effectively eliminated.

As described above, as a good embodiment, an example in which the first recess 122 and the second recess 123 are formed in the light guide lens 12 is shown.
However, it is possible to achieve the effect of the present invention even when only the first recess 122 is formed in the light guide lens 12 as in the modified example shown in FIG.
That is, even when the light diffusing portion 123a is provided on the surface of the first recess 122 on the light emitting side as shown in FIG. 16, the light diffusing portion 123a is arranged in the portion deep on the light emitting side. A similar effect can be achieved.

R Vehicle door lining 2 Door opener 3 Door grip 31 Operating equipment mounting part 4 Base S Decorative member 11 Light source 12 Light guide lens 12A Light emitting part 121 Lens tip 12B Incoming light guide 122 First recess 123 Second recess 123a Light diffuser 5 Light guide lens mounting part 51 First support part 51A First rib 51B Fourth rib 52 Second support part 52A Claw part 53 Third support part 53A Third rib K Lens tip support part P1 to P4 Stress Q1 Trace of introduction port during molding Q2 Gate cut part U1 Stress receiving part U2 Stress relief part

Claims (9)

A decorative part for a vehicle that is installed in a vehicle and has a light emitting region that emits light.
The decorative parts for the vehicle are
A light source that emits light and
It is formed in a long shape, and has at least a light guide lens in which the light source is arranged at one end and emits light from the light source in a long shape along the shape. ,
Wherein the light guide lens is formed concave the exit direction of the light opposite surface along the elongate shape,
The gate cut portion is a decorative member for a vehicle, characterized in that the gate cut portion is arranged on the vehicle skeleton side of the light emitting surface. The light emitting surface is configured as a vehicle inner surface of a light emitting portion extending inside the vehicle rather than a step portion.
The decorative member for a vehicle according to claim 1, wherein the gate cut portion extends in a direction intersecting the vehicle internal / external direction in which the light emitting portion extends. The light guide lens has an extending portion extending from the lower end portion of the step portion to the vehicle skeleton side.
The decorative member for a vehicle according to claim 1 , wherein the gate cut portion is arranged at an end portion of the extending portion on the vehicle skeleton side. The decorative member for a vehicle according to claim 1 , wherein the gate cut portion is formed on a surface opposite to the recess. The vehicle decorative member according to claim 1, wherein the gate cut portion is arranged below the lower end portion of the recess. The decorative member for a vehicle according to claim 1, wherein the concave portion adjusts an optical path so that the introduction port of the light guide lens at the time of molding and the gate cut portion cannot be visually recognized by an occupant. The vehicle decorative parts are at least part of a vehicle door lining with a door opener.
The vehicle decorative member according to claim 1, wherein the gate cut portion is hidden by the door opener. The light guide lens includes a step portion that is arranged below the light emitting surface and at the same vertical position as the door opener.
The decorative member for a vehicle according to claim 1, wherein the gate cut portion is arranged on the vehicle skeleton side of the step portion. The vehicle door lining is
Door grip and
Operating equipment mounting part and
With the base
With a light guide lens mounting part,
The vehicle decorative member according to claim 7, wherein the light guide lens mounting portion is arranged between the light guide lens mounting portion and the door opener.

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