JPWO2018198329A1 - Sun visor - Google Patents

Abstract

The sun visor (200) of the present invention includes a sun visor main body (201), a light source (50) attached to the sun visor main body (201), and a light guide (40) that emits outgoing light (Lo) that can be seen in the form of dots. ), A light shielding case (10) that covers the front side surface of the light guide (40) and fits into a first opening (201a) provided on the front side surface of the sun visor body (201), and a light shielding case (10) A magic mirror (30) that fits into the second opening (10a), and the light guide (40) straddles the magic mirror (30) so that both ends of the light guide (40) It arrange | positions in the state arrange | positioned on the outer side of a magic mirror (30). ADVANTAGE OF THE INVENTION According to this invention, illumination intensity can be ensured without requiring a high output light source, and the sun visor (200) excellent in design property can be provided.

Description

  The present invention relates to a sun visor.

2. Description of the Related Art Conventionally, there is a sun visor equipped with a vanity mirror that is disposed above a windshield of a driver's seat and a front passenger seat in an automobile and includes a light emitter, a light guide, and a mirror body (Patent Document 1).
In the sun visor described in Patent Document 1, a metal reflecting film is formed in the center of the back surface of the mirror main body constituting the vanity mirror, and the entire back surface of the translucent portion on both the left and right sides adjacent to the metal reflecting film. Minute irregularities are formed.
However, since the back surface of the translucent part has a ground glass shape with minute irregularities formed on the entire surface, the light emitted from the light guide is diffused with the minute irregularities, and the illuminance at the viewpoint position of the passenger When there is a shortage of light, it was necessary to secure a high-output light source in order to secure illuminance.
In addition, the back surface of the light-transmitting portion has a ground glass shape with minute irregularities formed on the entire surface, and the light emitted from the light guide is transmitted through the ground glass-like light transmitting portion so that the entire surface is not uneven. Since it emits light, it becomes monotonous indirect lighting, and there is room to improve the design when the sun visor is viewed from the front side.

JP-A-9-39634

  Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a sun visor that can secure illuminance without requiring a high-output light source and has excellent design.

In order to achieve the above object, the following configuration is used.
(1) The sun visor of the present invention has a plate-shaped sun visor body having light shielding properties, a light source attached to the sun visor body, and attached to the sun visor body, and has a plurality of depressions on the back side surface in the form of dots. A light guide body that refracts incident light incident from the light source toward the front side surface in the depression and emits outgoing light that can be viewed in the form of scattered dots, covers the front side surface of the light guide body, and the sun visor A light shielding case that fits in a first opening provided on the front side of the main body, and a magic mirror that fits in a second opening provided in the light shielding case, and the light guide straddles the magic mirror Thus, the both ends of the light guide are arranged outside the magic mirror.
(2) In the configuration of (1), the magic mirror has a light transmitting portion in a region covering the front side of the light guide corresponding to the arrangement of the light guide, and a region other than the light transmitting portion. Has a light shielding part.
(3) In the configuration of (1) or (2), the recess has a plane inclined with respect to the direction of the incident light.
(4) In any one of the constitutions (1) to (3), the recess has a pyramid shape.
(5) In any one of the constitutions (1) to (4), the depression has a regular quadrangular pyramid shape.
(6) In the configuration according to any one of (1) to (5), the light guide includes an incident end surface on which the incident light is incident, and an edge surface parallel to the incident light. The whole is rectangular, and the edge surface is curved.
(7) In the configuration of (6) above, the edge surface is bent so as to be convex outward on the back side.
(8) In the configuration of (7), the edge surface is bent so as to be convex outwardly on the front side.

  ADVANTAGE OF THE INVENTION According to this invention, illumination intensity can be ensured without requiring a high output light source, and the sun visor excellent in the design property can be provided.

It is explanatory drawing which shows the time of using the vanity mirror of a sun visor. It is a front view of the vanity mirror at the time of illumination OFF. It is a front view of the vanity mirror at the time of illumination ON. It is a front view of the vanity mirror in the state where illustration of a shading case was omitted. It is a figure which shows the attachment state of a light guide, and is A sectional view taken on the line in FIG. It is a figure which shows the attachment state of a light guide, and is B arrow sectional drawing in FIG. It is a figure which shows the modification of the attachment state of a light guide, and is B arrow sectional drawing in FIG. It is the figure which looked at the hollow of regular square pyramid shape from the back side of a light guide.

(Embodiment)
DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as this embodiment) will be described in detail with reference to the drawings.
In the following description, unless otherwise specified, the interior direction of the vehicle with respect to the sun visor 200 when the vanity mirror 100 of the sun visor 200 is used (the vanity mirror 100 faces the passenger as shown in FIG. 1). Is the front side, and the vehicle exterior direction (front window direction) is the back side.

  FIG. 1 is an explanatory diagram showing the sun visor 200 when the vanity mirror 100 is used. FIG. 2 is a front view of the vanity mirror 100 when the illumination is OFF. FIG. 3 is a front view of the vanity mirror 100 when the illumination is ON. FIG. 4 is a front view of the vanity mirror 100 in a state where the illustration of the light shielding case 10 is omitted.

  As shown in FIG. 1, the sun visor 200 is rotatably attached to a vehicle body such as an automobile, and has a plate-like light shielding property as a whole. The sun visor 200 is mounted on the front header portion at the top of the front window. The sun visor 200 is kept in the retracted state along the roof during normal operation so as not to interfere with the driving field of view, and when the sun rays are dazzling, the sun visor 200 is placed along the front window. It shields light rays.

As shown in FIG. 2 to FIG. 4, the sun visor 200 includes a plate-shaped sun visor body 201 having a light shielding property, a light source 50 attached to the sun visor body 201, and attached to the sun visor body 201. A light guide 40 that radiates incident light Li incident from the light source 50 toward the front side by a depression 70 and emits outgoing light Lo that can be viewed in a scattered manner, A light shielding case 10 that covers the front side of the light body 40 and fits in a first opening 201a provided on the front side of the sun visor body 201; a magic mirror 30 that fits in a second opening 10a provided in the light shielding case 10; Is provided.
Hereinafter, each part which comprises the sun visor 200 is demonstrated separately.

(Sun visor body)
Returning to FIG. 1, the sun visor body 201 will be described.
The sun visor body 201 is a substantially rectangular plate having a light shielding property, and is used in a landscape orientation.
A first opening 201a is provided at the center of the front side surface of the sun visor body 201, and the vanity mirror 100 is fitted into the first opening 201a.

(Vanity mirror)
As shown in FIGS. 2 to 4, the vanity mirror 100 includes a light source 50 attached to the sun visor body 201 and a sun visor body 201. The vanity mirror 100 includes a plurality of depressions 70 on the back side surface in the form of dots. The incident light Li is refracted toward the front side surface by the depression 70, and the light guide body 40 that emits the outgoing light Lo that can be seen in the form of scattered dots, covers the front side surface of the light guide body 40, and the sun visor body The light shielding case 10 fitted in the 1st opening part 201a provided in the front side surface of 201, and the magic mirror 30 fitted in the 2nd opening part 10a provided in the light shielding case 10 are provided.
The vanity mirror 100 includes a light-shielding lid 20 that is provided so as to be rotatable with respect to the upper portion of the light shielding case 10 and that can be opened and closed with respect to the first opening 201a. Since FIG. 2 shows a state in which the lid 20 is open, the magic mirror 30 can be visually recognized in this state. On the other hand, in a state where the lid 20 is closed (not shown), the lid 20 covers the entire front surface of the magic mirror 30 and the light shielding case 10, and the lid 20 closes the first opening 201a. Become.

(Shading case)
As shown in FIGS. 2 and 3, the light shielding case 10 has a substantially rectangular shape with an outer shape that is horizontally long when viewed from the front. The light shielding case 10 has a second opening 10a having a shape substantially similar to the outer shape at the center.
As shown in FIGS. 2, 3, and 5, the second opening 10 a has a magic mirror 30 having substantially the same shape as the second opening 10 a, and the front side surface of the magic mirror 30 and the surface of the light shielding case 10. It is fitted to the light shielding case 10 so as to be flush with the side surface.

(light source)
The light source 50 is composed of, for example, a bullet-type LED, a surface-mounted LED, or the like, has directivity with respect to the front, and emits light when supplied with electricity from a power source (not shown).
The light source 50 is provided in a posture in which the incident light Li faces the incident end surface 41 e at a position facing the incident end surface 41 e of the light guide 40. The light source 50 is attached to the sun visor body 201.
Incident light Li incident from the light source 50 is refracted toward the front side by a recess 70 formed in the light guide 40, and is emitted as output light Lo that can be seen in a scattered manner as shown in FIG. The

(Magic mirror, light guide and light guide support)
Next, the magic mirror 30, the light guide 40, and the light guide support part 60 that are related to each other will be described together.
The magic mirror 30 is also called a semi-transparent mirror or a half mirror. The magic mirror 30 cannot be viewed from the bright side to the dark side, but the reverse is possible. The magic mirror 30 is formed, for example, by vapor deposition or the like on the back side surface of a sheet glass by a thin metal film having a property of partially transmitting light and partially reflecting light.

  As shown in FIG. 2, the magic mirror 30 has substantially the same shape as the shape of the second opening 10 a provided in the light shielding case 10, and has a horizontally long rectangular outer shape as a whole. The magic mirror 30 is fitted to the light shielding case 10 so that the front side surface of the magic mirror 30 and the front side surface of the light shielding case 10 are flush with the second opening 10a.

  In addition, the magic mirror 30 is formed in a region that covers the front side of the light guide 40 corresponding to the arrangement of the light guide 40 (see FIG. 4), and in a region other than the light transmission unit 31. The light shielding portion 32 is provided. For example, as illustrated in FIG. 4, the magic mirrors 30 are arranged in a pair so as to be separated from each other at positions where the light guides 40 correspond to the left and right ends of the region of the second opening 10 a (magic mirror 30). Therefore, a pair of light-transmitting portions 31 of the magic mirror 30 are disposed on the left and right ends of the magic mirror 30 so as to be separated from each other.

  The translucent portion 31 is a portion that has a relatively low light reflectance and a relatively high light transmittance, and is a portion that partially transmits and reflects light. For example, a thin metal film is formed of a plate glass. It is formed by vapor-depositing on the back side surface. Therefore, the translucent part 31 exhibits the function of a mirror when the light source 50 is not emitting light. When the light source 50 is emitting light, the emitted light Lo emitted from the light source 50 through the light guide 40 is Since the vehicle interior is reached through the translucent portion 31, the passenger in the vehicle interior can directly see the emitted light Lo.

The light shielding portion 32 is a portion that has a relatively high light reflectance and a relatively low light transmittance, and shields light from both the front side and the back side. For example, a thick metal film is made of a plate glass. It is formed by vapor-depositing on the back side surface. Therefore, the light shielding unit 32 always exhibits the function of a mirror regardless of whether the light source 50 emits light or not, regardless of the brightness in the passenger compartment.
The light shielding portion 32 may be formed by separately attaching a sheet body having a partially high light shielding property to the magic mirror 30 having uniform transmittance and reflectance.

Therefore, in the magic mirror 30 having the light transmitting part 31 and the light shielding part 32, the entire surface of the magic mirror 30 exhibits the function of the mirror when the light source 50 is not emitting light. Further, in the magic mirror 30, in the state where the light source 50 emits light, the light shielding unit 32 exhibits the function of the mirror, and the light transmitting unit 31 exhibits the function of illumination by the emitted light Lo from the light source 50, The emitted light Lo that can be directly visually recognized provides a decorative function with excellent aesthetics.
Therefore, since the incident light Li from the light guide 40 is directly emitted toward the front side without diffusing and contributes efficiently to the improvement of the illuminance, the illuminance can be reduced without the need for the high-output light source 50. It can be secured. In addition, the emitted light Lo not only contributes to illuminance, but is visually recognized as a plurality of light spots that are naturally arranged, and thus has excellent design.

FIG. 5 is a view showing a state in which the light guide 40 is attached, and is a cross-sectional view taken along arrow A in FIG. FIG. 6 is a view showing a state where the light guide 40 is attached, and is a cross-sectional view taken along arrow B in FIG. 4.
As shown in FIGS. 4 to 6, the light guide 40 is attached to the sun visor main body 201, has a plurality of depressions 70 on the back side surface in the form of dots, and the incident light Li incident from the light source 50 is a depression 70. In this case, the light is refracted toward the front side surface, and the outgoing light Lo that is visible in the form of scattered dots is emitted. The light guide 40 is formed of a transparent material such as an acrylic resin, for example.

  The plurality of depressions 70 are irregularly arranged. Thereby, while being able to disperse | distribute the light from incident light Li toward the front side, since the some scattered light arranged naturally is visually recognizable, it looks good.

  The plurality of depressions 70 are irregular in size. Thereby, the light from the incident light Li can be dispersed toward the front side, and a plurality of natural scattered light beams Lo having different luminous fluxes can be visually recognized, so that the appearance is improved.

  The depression 70 has a plane inclined with respect to the direction of the incident light Li. Thereby, the incident light Li can be efficiently emitted toward the front side.

  The recess 70 has a pyramid shape. Thereby, a contrast which is a difference in brightness between a surface that looks bright and a surface that looks dark can be brought between the surfaces constituting the pyramid shape, and the appearance is improved.

FIG. 8 is a view of the regular quadrangular pyramid-shaped recess 70 as seen from the back side of the light guide 40.
As shown in FIG. 8, the recess 70 preferably has a regular quadrangular pyramid shape. Further, the opposite sides of the square forming the regular quadrangular pyramid shape are formed to be parallel to the direction of the incident light Li. Thereby, out of the four surfaces constituting the regular quadrangular pyramid shape, the surface 70d reflects the incident light Li most strongly and emits it to the front side, and the surfaces 70b and 70c moderately reflect the incident light Li to the front side. The surface 70a is the weakest, and the incident light Li is reflected and emitted to the front side. Therefore, a contrast that is a difference between the bright and dark surfaces between the four surfaces constituting the regular quadrangular pyramid shape is brought about, and the emitted light Lo can be visually perceived as shimmering, making it more attractive. Will be better.

  The angle formed between the surface 70a facing the incident light Li and the surface 70d facing the surface 70a is preferably 75 ° ± 5 °. Similarly, the angle formed by the surface 70b parallel to the incident light Li and the surface 70c facing the surface 70b is preferably 75 ° ± 5 °. Thereby, incident light Li can be efficiently reflected and emitted toward the front side surface, and the illuminance can be increased.

  The light guide body 40 has a vertically long rectangular outer shape as a whole, and has a first opening 201a formed in the sun visor body 201 in a posture in which the long side direction is the vertical direction as shown in FIG. The sun visor body 201 is attached to the sun visor body 201 by a light guide support portion 60 erected on the front side from the bottom surface 202 of the depression.

Here, as shown in FIG. 4, the light guide 40 straddles the magic mirror 30 in the vertical direction, and the end portions 41 that are both ends of the light guide 40 are on the outer side in the vertical direction of the magic mirror 30. Arranged in the arranged state.
Thereby, since the end side part 41 of the light guide 40 is arranged so as to overlap the back side of the light shielding case 10 in a front view, the light from the light source 50 refracted by the incident end face 41e of the end side part 41 is directly occupant. The incident end face 41e does not appear to shine strongly, and it can be avoided that the occupant feels dazzling and the appearance is improved.

  Further, the incident end face 41 e at the end side portion 41 of the light guide 40 is perpendicular to the direction of the incident light Li from the light source 50.

  On the other hand, the edge surface 42e which is an end surface in the long side part 42 of the light guide 40 is arranged so as to be parallel to the incident light Li, and is viewed from the front side (in front view) as shown in FIG. ) It is provided at a position overlapping the light shielding case 10 or the light shielding portion 32. Thereby, even if a passenger | crew sees from the front side, the edge surface 42e becomes invisible, it can avoid that a passenger | crew feels dazzling and it will improve appearance.

  Further, as shown in FIG. 6, the edge surface 42e is bent so as to protrude outwardly on the front side. Thereby, even if the light incident from the light source 50 and diffused inside the light guide 40 is reflected by the edge surface 42e, the direction of the light is directed to the back side as shown by the arrow in FIG. Even when the occupant looks obliquely from the front side, the edge surface 42e becomes shining and difficult to see, and it can be avoided that the occupant feels dazzling and the appearance is improved.

FIG. 7 is a diagram illustrating a modification of the attached state of the light guide 40.
As shown in FIG. 7, the edge surface 42e may be bent so as to be convex outwardly on the back side. Thus, when the light guide 40 is pushed in from the front side toward the back side to engage the light guide 40 between the opposing light guide support portions 60, the curved edge surface 42e is formed on the light guide support portion. The light guide support portion 60 can be elastically deformed without a large resistance while being slid on the inclined front side surface in 60 and directed outward. Then, when the light guide 40 is pushed in as it is, the light guide support 60 returns to its original shape due to elasticity, and the front side of the light guide 40 engages with the back side of the light guide support 60. Therefore, the light guide 40 is easily snap-engaged by the light guide support portion 60, and the light guide 40 is easily attached to the sun visor body 201.

(Operation and action)
Hereinafter, the operation and action of the vanity mirror 100 in the sun visor 200 will be described mainly with reference to FIGS. 1 to 3.
(1) To use the vanity mirror 100 of the sun visor 200 according to the present embodiment, first, as shown in FIG. 1, the sun visor 200 is rotated so that the vanity mirror 100 provided in the sun visor 200 faces the front. Let Subsequently, as shown in FIG. 2, the lid 20 of the vanity mirror 100 is rotated and opened.
(2) FIG. 2 shows the vanity mirror 100 when the illumination is turned off. In this state, the entire surface of the magic mirror 30 exhibits the function of the mirror and can reflect the face of the occupant.
(3) When the illumination is turned on, the light source 50 emits light, and as shown in FIG. 3, the light shielding portion 32 of the magic mirror 30 exhibits the function of a mirror, and the translucent portion 31 is illuminated by the emitted light Lo from the light source 50. Demonstrate the function.

  Thus, the sun visor 200 has a mirror function both when the illumination is on and when the illumination is off. In particular, when the illumination is ON, the sun visor 200 also exhibits an illumination function, and further exhibits a decorative function with excellent aesthetics by the emitted light Lo that can be directly recognized.

  The preferred embodiment of the present invention has been described in detail above. However, the sun visor 200 according to the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the gist of the present invention described in the claims. Can be modified and changed.

  According to the sun visor 200 of the present invention, a plate-shaped sun visor main body 201 having light shielding properties, a light source 50 attached to the sun visor main body 201, and a sun visor main body 201 are attached to a plurality of depressions 70 in a scattered manner on the back side surface. A light guide 40 that refracts the incident light Li incident from the light source 50 toward the front side surface by the depression 70 and emits the emitted light Lo that can be visually recognized as scattered dots, and the front surface of the light guide 40 A light shielding case 10 that covers a side surface and fits into a first opening 201a provided on the front side surface of the sun visor body 201; and a magic mirror 30 that fits into a second opening 10a provided in the light shielding case 10; Since the body 40 is disposed in a state in which both ends of the light guide 40 are disposed outside the magic mirror 30 so as to straddle the magic mirror 30, the end 40 of the light guide 40 Light from the light source 50 is refracted at Itanmen 41e is, without visible shining strong visibility has been incident end surface 41e directly to the occupant, the better is the appearance it is possible to prevent the occupant dazzling. Since the emitted light Lo is emitted directly to the front side through the translucent part 31 of the magic mirror 30, the visor 200 can secure illuminance without requiring a high-output light source 50 and has excellent design. Can provide.

DESCRIPTION OF SYMBOLS 10 Light shielding case 10a 2nd opening part 20 Cover body 30 Magic mirror 31 Light transmission part 32 Light shielding part 40 Light guide body 41 End edge part 41e Incident end surface 42 Long side part 42e Edge surface 50 Light source 60 Light guide body support part 70a Surface 70b Surface 70c surface 70d surface 100 vanity mirror 200 sun visor 201 sun visor body 201a first opening 202 bottom surface Li incident light Lo outgoing light

Claims (8)

A sun visor,
A plate-shaped sun visor body having light shielding properties;
A light source attached to the sun visor body;
The sun visor is attached to the sun visor body and has a plurality of dents on the back side surface in a dotted shape. The incident light incident from the light source is refracted toward the front side surface by the dent and can be seen as a scattered dot. A light guide that emits light; and
A light shielding case that covers a front side surface of the light guide and fits into a first opening provided on a front side surface of the sun visor body;
A magic mirror that fits in a second opening provided in the light shielding case,
The sun visor, wherein the light guide is disposed in a state where both end portions of the light guide are disposed outside the magic mirror so as to straddle the magic mirror. The magic mirror has a light transmitting part in a region covering the front side of the light guide corresponding to the arrangement of the light guide, and has a light shielding part in a region other than the light transmitting part. Item 2. The sun visor according to item 1. The sun visor according to claim 1, wherein the depression has a plane inclined with respect to the direction of the incident light. The sun visor according to any one of claims 1 to 3, wherein the hollow has a pyramid shape. The sun visor according to any one of claims 1 to 4, wherein the recess has a regular quadrangular pyramid shape. The light guide has an incident end face on which the incident light is incident and an edge surface parallel to the incident light, and is entirely rectangular.
The sun visor according to claim 1, wherein the edge surface is curved. The sun visor according to claim 6, wherein the edge surface is bent so as to protrude outward on the back side. The sun visor according to claim 7, wherein the edge surface is bent so as to protrude outward on the front side.

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