JP2010036608A - In-cabin small article storage - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an in-cabin small article storage having an effective and proper light-emitting function. <P>SOLUTION: The small article storage 10 is configured such that its inside storing space is illuminated with an external light source. At least a part of box surfaces constituting the storing space is formed with a synthetic resin containing 1% of a light diffusing agent and 1% of mica. The particle diameter of the mica is in the range of 30 to 50 μm. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an accessory case provided in a vehicle interior of a vehicle such as a passenger car, for example, particularly around an instrument panel.

  An accessory compartment is standard equipment in the car interior. The installation place is various places, such as an instrument panel, a glove box, or a console box. However, when traveling at night, the interior of the passenger compartment is basically dark, so it is often impossible to determine what is in the accessory case and where the accessory is in the accessory case.

As a countermeasure against such a problem, many examples are provided in which the inconvenience is eliminated by installing a dedicated light source around the accessory case. However, the cost increases by placing a dedicated light source, and in order to install a light source, it is necessary to change the shape of peripheral components.
In view of this, an idea has been proposed in which a semi-transparent or transparent resin molded product is lit using a light source for panel display arranged in the vicinity thereof.

Japanese Patent No. 2993706

However, the method of using a light source for panel display is excellent in cost performance and freedom of parts shape. However, if the light intensity is increased, only the upper surface of the light source is too strong. The shining range is narrowed. Therefore, it is preferable to irradiate the whole accessory case lightly and uniformly by irradiating a light amount that does not hinder driving during driving.
On the other hand, there are many examples using a resin material in which mica powder and a light diffusing agent are used in combination. However, as represented by Japanese Patent No. 2993706, the majority of them are for the purpose of improving the design properties of the molded product, that is, not designed for the purpose of improving the light diffusion effect.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle interior accessory case having an effective and appropriate light emitting action.

The vehicle interior accessory case of the present invention is a vehicle interior accessory case in which the interior of the accommodation space is illuminated by an external light source. At least a part of the housing surface constituting the accommodation space is provided with 1% light diffusing agent and mica 1. % Of the synthetic resin material.

In the accessory compartment of the present invention, the particle diameter of the mica is in the range of 30 to 50 μm.
In the accessory compartment of the present invention, the bottom of the housing space is formed of the synthetic resin material.
In the accessory compartment of the present invention, the synthetic resin material is translucent and the bottom surface of the housing space is unpainted.
In the accessory compartment of the present invention, the bottom of the housing space is configured to be illuminated and illuminated by a light source disposed in the closest position.

  According to the present invention, by using a light diffusing agent and mica powder in combination, the light diffusing effect is improved while maintaining constant permeability at a predetermined portion of the accessory case. By exhibiting a high light diffusion effect while maintaining a predetermined light transmittance, it is possible to realize an accessory case that shines lightly and uniformly when irradiated by a light source and shines to the extent that it does not hinder driving during night driving etc. it can. This makes it possible to clearly grasp the situation inside the accessory case when traveling at night.

DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a compartment accessory according to the present invention will be described with reference to the drawings.
First, an example of the configuration of the main part of the vehicle interior according to the embodiment of the present invention will be described with reference to FIG. Note that, in the main points of the following drawings, the arrow Fr indicates the vehicle front side, and the arrow Rr indicates the vehicle rear side.

  In the vehicle 100, a front window 103 is disposed in front of a driver seat 101 and a passenger seat 102, and a dashboard 104 is provided in front of the front window 103. An instrument panel 105 is disposed on a dashboard 104 in front of the driver's seat 101, and a steering wheel 106 is disposed in front of the instrument panel 105. In addition, a tray 107 for placing articles and the like is set on the upper portion of the dashboard 104, and a glove box 108 having an openable / closable lid is provided on the lower portion thereof.

  A center console 109 extends downward from a substantially central portion of the dashboard 104. The center console 109 extends substantially horizontally toward the driver's seat 101 (or passenger seat 102) at the lower end thereof, and a shift lever 110 is erected on the horizontal portion.

  From the upper part of the center console 109, for example, a cool air or warm air outlet 111 of a passenger compartment air conditioner (not shown), a control unit 112 of an audio device (not shown), an accessory case 10, and a control of the passenger compartment air conditioner. A portion 113 is provided. By arranging these devices vertically, the exterior surface (driver's seat 101 side) of the center console 109 is substantially configured. On the control panel of the control unit 113, there is disposed a control switch (s) 114 for controlling cooling / heating switching, cold / warm air blowing intensity, and the like (see also FIG. 3).

  The accessory entry / exit 10 </ b> A of the accessory case 10 opens in the exterior surface of the center console 109. An accommodation space for accommodating the accessory is formed so that the accessory case 10 is recessed inwardly (front of the vehicle) from the accessory entry / exit 10A. An occupant seated in the driver's seat 101 or the passenger's seat 102 can take in and out small items as appropriate through the small item entrance 10A with respect to the small case 10 recessed from the exterior surface of the center console 109. In addition, the accessory case 10 formed so as to be recessed in this manner causes the inner collar portion to become dim.

  FIG. 2 shows a configuration example around the accessory case 10. The storage space of the accessory case 10 is typically formed in a box shape or a box shape, and is surrounded by the box-shaped housing surface (a region indicated by a dotted line in FIG. 2 corresponds substantially). It has become. That is, the ceiling part 11, the back part 12, and the left and right side parts 13 and 13 (see FIG. 1) are configured by a part of the instrument panel 105. The bottom portion 14 is constituted by a separate center tray 15, and small items are placed on the center tray 15. As will be described in detail below, the center tray 15 is formed in a substantially rectangular plate shape as shown in FIG. 4A, and is formed of a translucent resin material having light diffusibility and light transmittance. In addition, the surface of the center tray 15 is not painted.

  A light source lamp 115 is disposed at the back (front Fr side) of the control unit 113. The light source lamp 115 is turned on at night or the like, and functions as a light source for back illumination of the control unit 113 (control panel thereof). The periphery of the light source lamp 115, particularly the vicinity of the upper part thereof, is covered with the casing of the control unit 113 or the frame member 116. In the casing 116, an opening window 117 is opened at a portion corresponding to the light source lamp 115. As shown in FIG. 5, a part of the light from the light source lamp 115 is irradiated to the center tray 15 through the opening window 117.

  Here, in a specific configuration, the output of the light source lamp 115 is, for example, 4 watts, and the distance L (FIG. 2) between the light source lamp 115 and the center tray 15 is about 10 to 18 mm. Further, the opening window 117 of the casing 116 set between the light source lamp 115 and the center tray 15 may have, for example, a rectangular shape as shown in FIG. About 5 mm and 75 mm. These specific numerical values show typical examples, and can be appropriately changed as necessary.

  As described above, in this embodiment, the accessory case 10 is installed on the upper portion of the control unit 113 of the passenger compartment air conditioner, and in that case, the accessory case 10 is configured to irradiate the accessory case 10 with light from the light source lamp 115 of the control unit 113. . In particular, the center tray 15 is made of a translucent material in order to have both a function of shining a portion on which an accessory is placed (transparency) and a function of hiding the internal structure of the control unit 113 (concealment). In order to realize these two functions, a translucent resin material having a high effect of diffusing light is used. In order to improve the light diffusibility of the translucent resin material, first, a light diffusing agent and mica powder are used in combination, thereby improving the light diffusibility compared to the material without the light diffusing agent or the material with only the light diffusing agent. It can be improved effectively.

  According to the present invention, the center tray 15 formed from a resin material that is a combination of mica powder having a particle diameter within a predetermined range and a light diffusing agent has a high light diffusion effect while maintaining a predetermined light transmittance. Demonstrate. By irradiating the center tray 15 with the light source lamp 115, it is possible to realize the accessory case 10 that shines lightly and uniformly and shines to the extent that it does not hinder driving during night driving. By illuminating the center tray 15 in this manner, it is possible to clearly grasp the situation inside the accessory case 10 when traveling at night.

  Further, the cost can be effectively reduced by using the light from the light source lamp 115 of the control unit 113. By the way, if a dedicated light source for accessory case irradiation is added and the shape of the parts around the accessory case is changed together, the cost increases and the shape of the peripheral parts is restricted. By utilizing the light source lamp 115 used for another purpose in the vehicle interior as in this example, a substantial cost reduction can be achieved.

  In the above case, the position of the light source and the distance between the light source and the irradiated object are limited depending on the shape of the light source unit and the alignment with other parts, and thereby the light irradiated to the accessory case 10 is reduced. Irradiation area and intensity may be greatly affected. For example, when the light source is too close, the distance for sufficiently diffusing the light is not secured, the light irradiation area becomes small, and the entire accessory case 10 does not shine uniformly. On the other hand, when the light source is too far, the light irradiation area becomes large, but the light diffuses to a portion other than the portion irradiated to the accessory case, and the intensity of the irradiated light becomes weak as a whole. For this reason, it becomes difficult to clearly grasp the internal state of the accessory case 10 particularly during night driving.

Therefore, by using the light diffusing agent and mica powder together as described above in the present invention, the center tray 15 improves the light diffusing effect while maintaining a certain permeability. As a result, the diffuse transmittance (Td) of light is increased by about 10%, for example, from 6.1 to 6.7, and the light irradiation area is increased by about 15%, from about 51 cm ² to about 60 cm ^2. By doing so, the accessory case 10 can be shined lightly and uniformly over a wider range, such as the irradiation range B shown in FIG.

Next, the present invention will be described more specifically. As described above, in the present invention, a resin material to which a light diffusing agent and mica powder are added is used. Examples of the resin material used in this embodiment are shown below.
Resin material: Polypropylene “MA3UD” (manufactured by Nippon Polypro Co., Ltd.)
Mica powder: “Magna Pearl 5000” (manufactured by BASF Japan Ltd.)
Light diffusing agent: “Lumina Pearl DSN-5” (manufactured by Nemoto Special Chemical Co., Ltd.)

  The resin material of the center tray 15 depends on the thickness of the molded product in order to ensure transparency and concealment. Here, the total light transmittance (Tt) when only a pigment is added on a flat plate of 3 mm is used. Within the range of 5.0 to 10.0%. As the light diffusing agent, a general commercial product mainly composed of calcium carbonate can be used. The light transmittance and diffuse transmittance are greatly influenced by the aspect ratio of calcium carbonate, and all commercially available products have similar aspect ratios. There is almost no effect on diffuse transmittance. The total light transmittance is given by the sum (total) of diffuse transmittance and parallel light transmittance.

  Table 1 shows a measurement sample in which the addition amount and mixing ratio of the light diffusing agent and mica powder are adjusted. The pigment concentration of the resin material used as the base was constant. When the total light transmittance is in the range of 5.0 to 10.0%, the effect of the pigment concentration is slightly different between the total light transmittance of 5.0% and 10.0%. There is almost no effect on the pigment concentration. The particle diameter of the mica powder is 40 μm.

  FIG. 6 shows the diffuse transmittance of the measurement material shown in Table 1. In Table 1, the pigment concentrations are all the same, and the total light transmittance of the pigment alone is 6.37 when the flat plate is 3 mm. The light diffusing effect was determined using the diffuse transmittance (Td) of a light transmittance measuring machine (haze computer) described in JIS K7136, K7361 as an index. As can be seen from FIG. 6, the material E to which the light diffusing agent and mica powder are added by 1.0% each is compared with the material A without additive and the materials B, C, and D with only one additive. The light transmittance is improved by about 10% or more.

  Here, FIG. 7 has shown the outline | summary of the effect which used a light-diffusion agent and mica powder together. When a light diffusing agent is added, although the effect of diffuse reflection is high although light is diffused, as a result, the light transmitted to the molded product design surface side after diffusion is reduced (FIG. 7A). In this embodiment, the surface of the center tray 15 on the storage space side of the accessory case 10 is the molded product design surface, and the light source lamp 115 side is the molded product back surface. In addition, when a light diffusing agent and mica powder are used in a certain ratio, the light diffused by the light diffusing agent is further diffused by the mica powder (the reverse, that is, the light diffused by the mica powder is further diffused by the light diffusing agent). As a result, it is considered that the light diffused and transmitted toward the molded product design surface side is increased (FIG. 7B).

  Next, Table 2 shows the light transmittance measurement results when the amount of the light diffusing agent is fixed to 1.0% by weight and the amount of mica powder is changed. In Table 2, the pigment concentrations are all the same, and the total light transmittance of the pigment alone is 6.37 when the flat plate is 3 mm. If the amount of the light diffusing agent is 2.0% or more by weight, the total amount of transmitted light is remarkably lowered. In addition, the amount of mica powder was adjusted between 0.5 and 2.0% in increments of 0.5%. If the weight exceeds 2.0%, appearance defects such as weld lines are likely to occur. The particle size of the mica powder was fixed at 40 μm.

  FIG. 8 shows the relationship between the amount of mica powder added and the diffusion transmittance. As can be seen from FIG. 8, the light diffusion effect is improved by adding 1.0% by weight of mica powder, which is superior to the additive-free material and the material of the light diffusing agent alone.

  FIG. 9 shows the result of verifying the influence of the particle diameter of mica powder on the light diffusion effect. The samples used in the experiment were formulated as shown in Table 3. In Table 3, the pigment concentrations are all the same, and the total light transmittance of the pigment alone is 6.37 when the flat plate is 3 mm. The contents of mica powder and light diffusing agent were fixed at 1.0% by weight, respectively. As for the particle size, if it is less than 20 μm, weld lines are likely to occur, and conversely, if the particle size is increased, the surface gloss is lowered. Therefore, the test was carried out by limiting the particle diameter to mica powder of 20, 40 and 80 μm.

  As can be seen from FIG. 9, it was found that the light diffusion effect is high when the particle diameter of the mica powder is 40 μm, and 80 μm is superior to 20 μm. However, when the thickness is 60 μm or more, the surface gloss is lowered, so that it is difficult to achieve the designability required in the automobile interior, and the designability reduction is remarkable.

From the above results, a translucent resin material containing 1.0 ± 0.2% by weight of mica powder having a particle size of 30 to 50 μm and 1.0 ± 0.2% by weight of a light diffusing agent maintains a certain amount of permeability. However, the light diffusing effect was improved compared to the material with no additive or the material with one added. In the accessory case 10 of the present embodiment, the irradiation area of light is improved by about 15% from about 51 cm ² to about 60 cm ^2, and it is possible to realize a thing that is light and uniformly shines as a whole.

  In the above embodiment, the accessory case 10 in the vehicle compartment has been described. In this case, the present invention is applied to the bottom 14 of the storage space of the accessory case 10, that is, the center tray 15. However, the present invention is not limited to the bottom of the storage space and can be applied to other parts as necessary. .

In addition, the present invention makes use of light sources such as speedometers and interior lights used in the interior of automobiles, to shine cup holders, glove boxes, console boxes, instrument panel garnishes, shift lever garnishes, etc. However, it can be applied in the same manner, and as an effect of the application, not only the convenience but also the design can be improved.
Furthermore, it can also be applied as interior parts that shine for the purpose of decoration, and for parts that were shined for the purpose of decoration to improve the design of the interior of the vehicle, an increase in the number of light sources and a special light irradiation form The target part can be produced in a simple form without adding the parts that have it.

As mentioned above, although this invention was demonstrated with various embodiment, this invention is not limited only to these embodiment, A change etc. are possible within the scope of the present invention.
In particular, the specific numerical values and the like described in the above embodiment are examples of the present invention, and are not limited to these numerical values.

It is a figure for demonstrating the structural example of the principal part in the vehicle interior in embodiment of this invention. It is sectional drawing which follows the AA line of FIG. 1 which shows the structural example of the accessory case periphery in embodiment of this invention. It is a perspective view which shows the structural example of the accessory case periphery in embodiment of this invention. It is a figure which shows the example of the light irradiation range and opening window for light sources of the accessory case bottom part in embodiment of this invention. It is a figure which shows the effect | action of the irradiation light with respect to the accessory case in embodiment of this invention. It is a figure which shows the example of the diffuse transmission factor of the measurement material in embodiment of this invention. It is a figure which shows the effect which used the light-diffusion agent and mica powder in embodiment of this invention together. It is a figure which shows the relationship between the addition amount of mica powder and diffusion transmittance | permeability in embodiment of this invention. It is a figure which shows the relationship between the particle diameter of mica powder and diffusion transmittance | permeability in embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Small container 11 Ceiling part 12 Back part 13 Side part 15 Center tray 100 Vehicle 101 Driver's seat 102 Passenger seat 103 Front window 104 Dashboard 105 Instrument panel 107 Tray 109 Center console 113 Control part

Claims (5)

A vehicle interior compartment designed to illuminate the interior space with an external light source,
A vehicle interior accessory case characterized in that at least a part of the housing surface constituting the housing space is made of a synthetic resin material having a light diffusing agent of 1% and mica of 1%.   The interior compartment case according to claim 1, wherein the mica has a particle size in a range of 30 to 50 μm.   The interior compartment case according to claim 1 or 2, wherein a bottom portion of the accommodation space is formed of the synthetic resin material.   The interior compartment of the vehicle interior according to claim 3, wherein the synthetic resin material is translucent and the bottom surface of the accommodation space is unpainted.   The interior compartment of the vehicle interior according to claim 3 or 4, wherein the bottom portion of the housing space is configured to be illuminated and illuminated by a light source disposed at a close position.

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