JP6093208B2 - Vehicle interior member and manufacturing method thereof - Google Patents

Description

The present invention relates to vehicle both an interior member and its manufacturing method that obtained display information or the like on the surface.

  As a lighting device for illuminating a passenger compartment of an automobile or the like, a lighting device such as an electric lamp is disposed on the back side of a vehicle interior member such as a head lining or an instrument panel constituting a ceiling, and a penetration formed through the vehicle interior member There has been proposed one that illuminates a passenger compartment with light emitted from illumination means through a hole (see, for example, Patent Document 1 and Patent Document 2).

Japanese Utility Model Publication No. 61-133432 Japanese Patent No. 4407455

  The illumination device of Patent Document 1 has a configuration in which light emitted from a light bulb disposed between the headlining and the roof panel is incident on a vehicle compartment through an air vent hole formed through the headlining. The air vent hole may be clogged with dust. Since the illumination device of Patent Document 2 covers the hole formed through the front side of the illumination member in the instrument panel with a clear member made of acrylic resin or the like, the hole is clogged as in Patent Document 1. There is nothing. However, in the illumination device of Patent Document 2, a clear member having a texture that is greatly different from that of the instrument panel appears on the surface of the instrument panel, and the design on the passenger compartment side is impaired. In the lighting device of Patent Document 1, the air vent hole appears on the surface facing the passenger compartment of the headlining, and the design of the headlining is impaired by the air vent hole.

  That is, the present invention has been proposed in order to suitably solve these problems related to the prior art, and can display patterns and information on the surface without affecting the design of the surface. It aims at providing a vehicle interior member and its manufacturing method.

In order to overcome the above-mentioned problems and achieve the intended object, the vehicle interior member of the invention according to claim 1 of the present application,
In a vehicle interior member whose surface facing the passenger compartment is opaque,
該車surfaces of the interior member is a member formed in a thickness which does not transmit light, transmitting light corresponding to the bottom of the formed hole so as not to penetrate the surface as well as an opening on the back surface of said vehicle interior member is configured to have a thickness of the residual portion as possible,
A light emitting means having a light emitting source capable of irradiating light toward the hole is disposed on the back side of the vehicle interior member,
Arranged side by side a plurality of the holes, by the remaining portion that emits light when irradiated with light from the back surface side, and summarized in that the capable of displaying a pattern or information on the surface.
According to the first aspect of the invention, since the hole portion does not penetrate the vehicle interior member, it is not clogged like the through hole, and it is not necessary to provide a cover for covering the through hole. Moreover, since the formation of the hole does not affect the surface of the vehicle interior member facing the passenger compartment, even if a plurality of holes are formed, the design shape of the vehicle interior member is not impaired, and the pattern or information The degree of freedom of the display position is also high. Then, only, pattern-like or information by light leaking through the remaining portion of the vehicle interior member having the bottom of the hole to the light emitting surface of the remaining portion when irradiated with light emitting means from the rear side of the vehicle interior member Is displayed, the display portion of the pattern or information cannot be distinguished from other surfaces until light is irradiated.

In the invention according to claim 2 , in the light emitting means, one or a plurality of the holes are formed at intervals corresponding to each of the light emitting sources arranged in a plurality of rows and a plurality of columns.
The gist is that a pattern or information is displayed on the surface according to the arrangement of the corresponding remaining portions that emit light in response to lighting of the light source.
According to the second aspect of the present invention, since the hole is formed in accordance with each light source of the light emitting means, the intended pattern or information can be flexibly displayed by the arrangement of the remaining portions emitted by lighting the light source. can do.

The invention according to claim 3 includes a base material made of a hard synthetic resin, and a skin material made of a synthetic resin having flexibility and constituting a surface disposed on the base material and facing the passenger compartment. ,
The hole is formed so as to penetrate the base material to reach the skin material, and can transmit light corresponding to a portion where the skin material does not transmit light and a bottom of the hole. The gist of the invention is that it has a remaining portion with a sufficient thickness .
According to the third aspect of the present invention, a pattern or information display portion can be formed by the remaining portion at the bottom of the hole even in the case of a vehicle interior member having a multilayer structure including a base material and a skin material. .

In order to overcome the above-mentioned problems and achieve the intended purpose, a method for manufacturing a vehicle interior member according to claim 4 of the present application is as follows.
With the surface facing the passenger compartment side to form a hole that does not penetrate by irradiating laser from the back surface side of the vehicle interior member is constituted by a member formed with a thickness which does not transmit light, when forming the pores portion to, by detecting the laser beam from leaking to the front side through to the residual presence section bottom, such a the hole portion, and management so as to be capable of transmitting a thickness a thickness Migahikari of the remaining portion,
A light emitting means having a light emitting source capable of irradiating light toward the hole is disposed on the back side of the vehicle interior member,
And summarized in that which is adapted to form side by side the hole of several so as to be capable of displaying decorative or information to the surface by the remaining portion that emits light when irradiated with light from the back surface side of the vehicle interior member.
According to the invention of claim 4 , when the hole is formed in the vehicle interior member with a laser, the thickness of the remaining portion is detected by detecting laser light leaking to the front side through the remaining portion of the bottom of the hole by the laser. Since it manages, the remaining part which light leaks to the front side when light is irradiated toward a hole from the back side can be formed reliably. In addition, even if the thickness or shape of the vehicle interior member changes, the remaining portion when the hole is formed is directly managed, so that variations in the thickness of the remaining portion can be prevented.

In the invention which concerns on Claim 5 , it is the thickness which does not permeate | transmit the light which consists of a synthetic resin which has flexibility along the front side of the base material which consists of a hard synthetic resin shape | molded according to the design shape of the said vehicle interior member. the skin material is disposed,
Thereby forming the hole portion that reaches the skin material by irradiating laser from the back side of the substrate through the substrate, the said surface skin material through the remaining portion of the skin material forming the bottom of the hole portion by detecting the front surface side to the leakage laser light, and summarized in that the thickness of the remaining portion of light was Unishi due to manage so as to be permeable thickness.
According to the invention which concerns on Claim 5 , even if it is the vehicle interior member of the multilayer structure previously formed according to the design shape, a remaining part can be formed with fixed thickness, and it can be made into a hole from a back side. A remaining portion where light leaks to the front side when irradiated with light can be reliably formed.

According to the vehicle interior member of the present invention, the design shape of the surface is not affected even if the pattern or information can be displayed by light emission. According to the method for manufacturing a vehicle interior member according to the present invention, it is possible to reliably form a remaining portion that emits light when light is irradiated from the back side of the vehicle interior member toward the hole.

It is a schematic perspective view which shows a part of instrument panel which concerns on the Example of this invention. It is an enlarged view of the cross section fractured | ruptured by the AA line of FIG. It is explanatory drawing which shows the display part of an Example, (a) shows the state in which the light emission source of the light emission means is not lighted, (b) shows the state in which the required light emission source was lighted. It is explanatory drawing which shows the formation process of the hole part of an Example, (a) is in the middle of the process of a hole part, (b) shows the condition where the laser beam leaked through the remaining part of the bottom of a hole part. , (C) and (d) show the situation where the instrument panel is moved to sequentially form holes.

  Next, a vehicle interior member and a method for manufacturing the same according to the present invention will be described below with reference to the accompanying drawings by way of preferred embodiments.

  As shown in FIG. 1 or 2, an instrument panel (vehicle interior member) 10 according to an embodiment covers a base material 12 that secures the rigidity of the instrument panel 10 and a front side of the base material 12 so as to cover the surface. The instrument panel 10 has a multilayer structure including a skin 15 constituting a surface facing the passenger compartment R and an elastic layer 16 provided between the base material 12 and the skin 15. As the base material 12, a solid body made of a hard synthetic resin such as polypropylene (PP) is used, and the thickness is set to about 2.5 mm, for example. The skin 15 can be formed from a synthetic resin having flexibility such as an olefin-based thermoplastic elastomer (TPO). The elastic layer 16 can be made of a cell structure having elasticity such as polypropylene (PP) foam or polyethylene (PE) foam. In the embodiment, the skin 15 and the elastic layer 16 are integrally formed to constitute the skin material 14 having flexibility. And as for the instrument panel 10, the skin material 14 is joined along the surface of the base material 12 shape | molded previously according to the design shape of this instrument panel 10. FIG. That is, in the instrument panel 10, an approximate design shape of the instrument panel 10 is formed by the shape of the base material 12, and a design surface is constituted by the skin 15 exposed to the vehicle interior R. In addition, the thickness of the skin material 14 of an Example is about 2.0 mm (skin 0.5mm, foam layer 1.5mm). The base material 12, the skin 15 and the elastic layer 16 are all made of an opaque material, and at least a layer constituting the surface of the instrument panel 10 (skin 15 in the embodiment) becomes thinner by a hole 20 described later. It is configured not to transmit light at a normal thickness. That is, the instrument panel 10 is opaque.

  The instrument panel 10 has a display unit 18 capable of displaying a pattern or information when the light is emitted from the light emitting means 24 disposed on the back side of the instrument panel 10 toward the back surface. It is formed on the surface. The instrument panel according to the embodiment is provided with two display portions 18 and 18 arranged in the vehicle width direction. As shown in FIG. 2, the display unit 18 is formed on the back surface of the instrument panel 10 and has a plurality of hole portions 20 so as not to penetrate the front surface. The remaining portion 22 of the instrument panel 10 that forms the bottom of the hole 20 constitutes a light emitting portion. That is, in the display unit 18, when light is emitted from the light emitting means 24, a part of the surface of the instrument panel 10 emits light due to light leaking to the front side through the plurality of remaining parts 22, and depending on the arrangement of these light emitting parts An information transmission medium such as a pattern, letters, numbers and symbols is expressed, and information is displayed by an information transmission medium alone or in combination. The hole 20 of the embodiment is formed at a depth that opens to the back surface of the base material 12 and penetrates the base material 12 and the elastic layer 16 and reaches the middle of the skin 15. Moreover, the hole 20 is formed in a substantially circular shape, and the opening area is substantially the same from the opening to the bottom, or is slightly tapered toward the bottom from the opening. The display unit 18 is formed with a plurality of holes 20 spaced apart from each other. When light is emitted from the light emitting means 24, light emission that emits light in a substantially circular shape according to the remaining part 22 by each hole 20. The portions are formed at intervals from each other (see FIG. 3B). Here, each hole 20 is formed so that the thickness of the remaining portion 22 is constant. The display unit 18 shown in FIG. 1 or FIG. 3 conveniently surrounds an area where patterns and characters are displayed. The design surface of the display unit 18 is not different from the surrounding design surface, and the remaining part 22 emits light. If you don't, you can't distinguish.

As the light emitting means 24 for causing the remaining portion 22 to emit light, an LED, a light bulb, an organic EL, or the like as a light source 26 can be used. In the instrument panel 10, one or a plurality of holes 20 are formed corresponding to the light irradiation direction front side of the light emission source 26 of the light emission means 24, and the light emission source 26 is turned on. The corresponding remaining portion 22 emits light through the hole 20 formed on the front side in the irradiation direction. For example, the light-emitting means 24 arranges a plurality of light-emitting sources 26 vertically and horizontally along the back surface of the instrument panel 10 in accordance with the pattern and information displayed on the display unit 18, and for example, as shown in FIG. It is arranged in 3 columns x 5 rows. For example, four hole portions 20 are formed corresponding to the light irradiation direction front side of each light emission source 26, and the four remaining portions 22 emit light by light irradiation from one light emission source 26. The display unit 18 includes, for example, an uppermost horizontal row, a central horizontal row, a lowermost horizontal row, a second row from the top of the right column, and a second emission source from the bottom of the left column. When 26 is turned on, the number “2” is displayed according to the arrangement of the remaining portions 22 that have emitted light (see the display portion on the left side of FIG. 3B). The display unit 18 has a numerical value “4” depending on the arrangement of the remaining portions 22 that emit light when the light emission sources 26 are turned on, for example, one row in the middle row, the upper two rows in the left column, and the entire row in the right column. "is displayed (see display portion of the right side of Figure 3 (b)).

  For example, an arbitrary number can be displayed on the display unit 18 by appropriately controlling lighting of the plurality of light emitting sources 26 in the light emitting unit 24, and the number of the light emitting sources 26 and the number of holes 20 corresponding to the light emitting sources 26 can be displayed. If it is increased, more information can be displayed, such as characters. In addition, in the set of hole portions 20 corresponding to each light source 26, for example, the hole portions 20 having a diameter of 0.2 mm are arranged in a substantially rectangular shape at intervals of 0.5 mm, and the thickness of the remaining portion 22 is constant (for example, 0. 15mm). Thus, it can be said that the display device is configured by the instrument panel 10 including the display unit 18 on the plate-like portion facing the passenger compartment and the light emitting means 24.

  Next, a method for manufacturing the instrument panel 10 according to the embodiment will be described. A base material 12 formed in a predetermined shape that matches the design shape of the instrument panel 10 to be obtained, and a skin material 14 comprising a skin 15 and an elastic layer 16 are prepared. An adhesive material is applied to the surface of the base material 12, and the elastic layer 16 side of the skin material 14 is joined to the surface of the base material 12 to form the instrument panel 10. The skin material 14 is pressure-bonded along the surface shape of the substrate 12 by vacuuming or the like.

  The instrument panel 10 is set on a support means (not shown) of the processing apparatus, and is disposed between an irradiation unit 28 that irradiates a laser and a detection unit 30 that is disposed opposite to the irradiation unit 28 and detects a laser beam ( (See FIG. 4). At this time, the instrument panel 10 is set with the base material 12 side serving as the back surface facing the irradiation unit 28 and the skin 15 side serving as the front surface facing the detection unit 30. As shown in FIG. 4A, a substantially circular hole is formed so as to be recessed from the back surface of the base material 12 by irradiating the laser from the irradiation unit 28 toward the back side of the base material 12 in a dot shape. The hole becomes deeper and the remaining portion of the instrument panel 10 that forms the bottom of the hole becomes thinner. Here, when the hole forming process is performed by the laser, the laser beam leaking to the front side of the instrument panel 10 through the remaining portion of the bottom of the hole is detected by the detecting unit 30, and thereby the thickness of the remaining portion 22 is determined. I manage. In a state where the instrument panel 10 is not penetrating the base material 12 or the elastic layer 16 in the initial stage where the laser is irradiated from the irradiation unit 28, the remaining portion of the bottom of the hole has a sufficient thickness, At the set thickness, the laser beam does not leak to the front side of the instrument panel 10 because it is blocked by the light-skin 15 that does not transmit light, so that the detection unit 30 does not detect the laser beam (see FIG. 4A). When the hole penetrates the base material 12 and the elastic layer 16 to reach the skin 15 by the laser irradiation and the hole 20 is formed in the skin 15, the laser passes through the remaining portion 22 of the thinned skin 15. Light leaks to the front side of the instrument panel 10, and laser light is detected by the detection unit 30 (see FIG. 4B). The detection of the laser light of the detection unit 30 stops the laser irradiation from the irradiation unit 28, and the hole 20 that penetrates the base material 12 and the elastic layer 16 but does not penetrate the skin 15 is formed. The remaining portion 22 of the epidermis 15 is left with a thickness capable of transmitting light. The processing apparatus moves the instrument panel 10 by the supporting means based on the processing data inputted in advance, and causes the irradiation part 28 to sequentially face the site where the hole 20 is formed. 4 (c) and 4 (d), holes are formed in order by laser irradiation at intervals, and holes that do not penetrate the skin 15 while penetrating the substrate 12 and the elastic layer 16 A portion 20 is formed, and the remaining portions 22 of the skin 15 that forms the bottom of the hole 20 are left with a thickness that allows light to pass through.

(Effects of Example)
Next, the operation of the embodiment will be described. Since the hole portion 20 does not penetrate the instrument panel 10, the display unit 18 is not clogged like a through hole opened on the front side of the instrument panel 10, and a cover for covering the through hole is arranged. There is no need to install. In addition, the hole 20 does not appear on the front side of the instrument panel 10, and the formation of the hole 20 does not affect the surface of the instrument panel 10 facing the passenger compartment R, so that the surface of the display unit 18 is the display unit 18. Same as other surfaces. That is, even if the display unit 18 is formed by the plurality of holes 20, the design shape of the instrument panel 10 is not impaired, and it is not necessary to hide the display unit 18 in a position where it cannot be directly seen by the occupant. The degree of freedom of the formation position is also high. The surface of the remaining portion 22 is exposed to light leaking through the remaining portion 22 of the skin 15 that forms the bottom of the hole 20 only when light is emitted from the light emitting means 24 disposed on the back side of the instrument panel 10. Emits light and displays a pattern or information as the display unit 18. Therefore, the display unit 18 cannot be distinguished from the surrounding surface until light is emitted from the light emitting means 24. Even in the multi-layered instrument panel 10 including the base material 12 and the skin material 14, the hole portion 20 is formed and the bottom of the hole portion 20 is only a remaining portion 22 through which light can be transmitted. The display unit 18 can be easily provided. The display unit 18 can flexibly display an intended pattern or information depending on the arrangement of the remaining portions 22 that emit light when the light source 26 is turned on by the arrangement of the light emitting sources 26 and the holes 20 of the light emitting means 24. .

  In the instrument panel 10, the remaining portion 22 is composed of the skin 15, and if the same material is used, the timing at which the laser beam having a predetermined intensity leaks due to the formation of the hole 20 by laser irradiation is the same. The thickness of the thick portion 22 can be managed with high accuracy. That is, even if the part where the display unit 18 is formed is curved as shown in FIG. 4, the thickness of the instrument panel 10 is varied, or the surface is subjected to graining or the like, the manufacturing method is used. Accordingly, the thickness of the remaining thickness portion 22 can be made constant. Thus, when forming the hole 20 in the instrument panel 10 with a laser, the thickness of the remaining portion 22 is managed by detecting the laser light leaking to the front side through the remaining portion 22 at the bottom of the hole 20. Therefore, regardless of the shape and surface state of the instrument panel 10, the remaining portion 22 from which light leaks to the front side can be reliably formed when light is irradiated from the back side toward the hole portion 20.

(Example of change)
The present invention is not limited to the configuration described above, and can be modified as follows, for example.
(1) The vehicle interior member is not limited to the instrument panel, and can be applied to headlining, pillar garnish, and others.
(2) The vehicle interior member is not limited to the three-layer structure described in the embodiment. For example, the vehicle interior member has a one-layer structure composed of only a base material or a two-layer structure composed of a skin material and a base material composed of only a skin. May be.
(3) The hole is not limited to being formed in a dot shape, and may be formed in a long hole shape or a groove shape.

10 instrument panel (vehicle interior member), 12 base material, 14 skin material,
18 display part, 20 hole part, 22 remaining part, R compartment

Claims (5)

In a vehicle interior member whose surface facing the passenger compartment is opaque,
該車surfaces of the interior member is a member formed in a thickness which does not transmit light, transmitting light corresponding to the bottom of the formed hole so as not to penetrate the surface as well as an opening on the back surface of said vehicle interior member is configured to have a thickness of the residual portion as possible,
A light emitting means having a light emitting source capable of irradiating light toward the hole is disposed on the back side of the vehicle interior member,
Vehicle and arranged a plurality of the hole, by the remaining portion that emits light when irradiated with light from the back surface side, and wherein the <br/> it has capable of displaying a pattern or information on the surface Interior material. Corresponding to each of the light emitting sources arranged in a plurality of rows and a plurality of columns in the light emitting means, one or a plurality of the holes are formed at intervals,
Wherein the arrangement of the remaining portion of the corresponding that emits light in accordance with the lighting of the light emitting source, the vehicle interior member according to claim 1, wherein configured to display the pattern or information on the surface. A base material made of a hard synthetic resin, a surface disposed on the base material and facing the passenger compartment, and a skin material made of a synthetic resin having flexibility; and
The hole is formed so as to penetrate the base material to reach the skin material, and can transmit light corresponding to a portion where the skin material does not transmit light and a bottom of the hole. claim 1 or 2 vehicle interior member according configured with a remaining portion to be such thickness. With the surface facing the passenger compartment side to form a hole that does not penetrate by irradiating laser from the back surface side of the vehicle interior member is constituted by a member formed with a thickness which does not transmit light, when forming the pores portion to, by detecting the laser beam from leaking to the front side through to the residual presence section bottom, such a the hole portion, and management so as to be capable of transmitting a thickness a thickness Migahikari of the remaining portion,
A light emitting means having a light emitting source capable of irradiating light toward the hole is disposed on the back side of the vehicle interior member,
Vehicle, characterized in that so as to form side by side the remaining the hole of several so as to be capable of displaying decorative or information to the surface by portions that emits light when irradiated with light from the back surface side of the vehicle interior member Manufacturing method of interior member. Said along a front side of the base consisting of the vehicle is shaped to fit the design shape of the interior member hard synthetic resin, and disposed the skin material thickness which does not transmit light made of synthetic resin having flexibility,
Thereby forming the hole portion that reaches the skin material by irradiating laser from the back side of the substrate through the substrate, the said surface skin material through the remaining portion of the skin material forming the bottom of the hole portion by detecting the laser beam from leaking to the front surface side, a manufacturing method of a vehicle interior member of thickness claim 4, wherein the light was Unishi due to manage so as to be capable of transmitting the thickness of the remaining portion.

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