JP2011009112A - Lamp body for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lamp body for vehicle formed with an outer housing and an outer lens with an asymmetrical shape centered at a light source and configured to eliminate an emission distribution, brighten the whole lamp body uniformly, and improve the design property.SOLUTION: A side turn lamp 2 includes the outer housing 7 formed of an opaque material, a feeding terminal 6 arranged to the outer housing 7, the light source 5 fixed in contact with the feeding terminal 6, and the outer lens 3 provided with a light diffusion means on a part of its outer surface formed of a transparent material, wherein a light reflection means is provided on a rear surface between the outer housing 7 and the outer lens 3, an inner lens provided with a metallic film intervenes on a front surface, a flange 4f formed on a peripheral end of the inner lens is held between the outer housing 7 and the outer lens 3, and one of resins forming the outer housing 7 and the outer lens 3 is injected to a corresponding portion to join them for unification.

Description

  The present invention relates to a technical field of a vehicle casing provided in a vehicle such as an automobile.

  In general, the structure of a side turn signal lamp attached to a fender panel of a vehicle such as an automobile includes a housing attached to the vehicle, a power supply terminal inserted and fixed in the housing, and a light source (bulb, LED, etc.) fixed in contact with the power supply terminal. An outer lens is used. Side turn signal lamps are attached to the fender panels on both the left and right sides of the vehicle, and when the vehicle changes direction of travel by turning left or right, changing lanes, etc. In order to notify the other vehicle or the like of the change direction of the vehicle course, the light emission angle is stipulated by law (Patent Document 1).

JP-A-11-342789

  Recently, chassis (side turn signal lamps, etc.) attached to vehicles such as automobiles have a decoration function in addition to the light emission function stipulated by laws and regulations. Therefore, further improvement in design is required. The conventional housing structure has a structure in which light emitted from a light source is emitted to the outside directly or by reflected light of a reflector through an outer lens. In the case of such a structure, in order to satisfy the light emission angle stipulated in the law, the outer lens is provided with a lens cut as a light diffusing means to emit light within a predetermined light radiation angle range stipulated in the law. . On the other hand, as a part of the design of the vehicle body, the housing has a shape in which the outer shape of the housing is asymmetrical with respect to the light source, or a shape in which the end of the housing is separated from the light source. Various designs are devised and attached to vehicles. The light of the housing having the left-right asymmetric shape causes light and darkness in the light emission region and other radiation regions stipulated by laws and regulations, or uneven light emission. If the body edge is separated, light is difficult to transmit to the edge, and there is a problem in that light and darkness occurs in the vicinity of the light source and the edge, and the design as a housing is impaired. However, there is a problem to be solved by the present invention.

The present invention has been created in view of the above-described circumstances in order to solve these problems. The invention of claim 1 includes an outer housing made of an opaque material and an outer housing. In a vehicle housing comprising a power supply terminal provided, a light source that is fixed in contact with the power supply terminal, and an outer lens formed of a transparent material, wherein the outer lens is abutted and formed integrally with the outer housing. An inner lens is disposed between the outer housing and the outer lens to guide light radiated from the light source to a housing end, and the inner lens includes a light incident portion that takes in light radiated from the light source, and a peripheral portion. A leg portion extending in the direction of the outer housing is provided at an end portion, and the end portion of the leg portion is the outer housing and the outer lens. A vehicular lamp unit, characterized by being formed integrally held between the.
The invention according to claim 2 is characterized in that the light incident portion of the inner lens includes an extending portion extending to a position covering the light source head and a curvature surface portion having a shape following the light source. The vehicle housing according to claim 1.
According to a third aspect of the present invention, in the state where the outer housing and the outer lens are mounted on the vehicle based on the position of the light source disposed in the outer housing, the shape on the vehicle front side is the shape on the vehicle rear side. 3. The vehicle housing according to claim 1, wherein the vehicle housing is longer than the outer housing and an inner lens is disposed between the outer housing and the outer lens on the front side of the vehicle. .
According to a fourth aspect of the present invention, in the state where the outer housing and the outer lens are mounted on the vehicle with reference to the position of the light source disposed in the outer housing, the shape on the vehicle rear side is the shape on the vehicle front side. 4. The vehicle housing according to claim 1, wherein the vehicle housing is set shorter than the outer lens and a light diffusing unit is provided on the vehicle rear side of the outer lens. 5.
A fifth aspect of the present invention is the vehicle casing according to any one of the first to fourth aspects, wherein a metal film is formed on a surface of the inner lens on the outer lens side.
The invention according to claim 6 is the vehicle casing according to any one of claims 1 to 5, wherein a light reflecting means is provided on a surface of the inner lens on the outer housing side. .
A seventh aspect of the present invention is the vehicle casing according to any one of the first to sixth aspects, wherein the light source is an LED.
The invention according to claim 8 is the vehicle casing according to any one of claims 1 to 6, wherein the light source is a bulb.
The invention according to claim 9 is the vehicle casing according to any one of claims 1 to 8, wherein the vehicle casing is a side turn signal lamp.

According to the first aspect of the present invention, the light emitted from the light source is guided by the inner lens, so that the entire casing can be illuminated uniformly. Can be visually recognized as if it exists, and a frame excellent in design can be provided.
By making it the invention of claim 2, the light emitted from the light source can be efficiently guided to the inner lens to uniformly shine the entire casing, and the extending portion formed on the inner lens is When the case is not lit, it can play a role of hiding the presence of the light source and can provide a design-excellent case.
According to the invention of claim 3, the light emitted from the light source can be made to shine uniformly throughout the casing by guiding the light to the end of the casing by the inner lens, which is excellent in design. Can be provided.
With the invention of claim 4, the light emitted from the light source will be guided to the end of the housing by the inner lens, and the radiation area stipulated by laws and regulations can be radiated, The entire casing can be illuminated uniformly, and a casing excellent in design can be provided.
According to the invention of claim 5, the metal film provided on the inner lens further improves the design when not lit, and the metal film blocks light when lit, and the metal film The inner lens region other than the region can be illuminated, and a housing excellent in design in appearance can be provided.
According to the invention of claim 6, the light emitted from the light source can reduce the leakage of the light guided to the inner lens to the outer housing side, and can efficiently reflect the light forward. It is possible to provide an excellent casing.
By setting it as invention of Claim 7, there is little power consumption and it can provide the long-life design excellent casing.
By setting it as invention of Claim 8, the housing excellent in the maintainability which can replace | exchange light source components at low cost can be provided.
By setting it as invention of Claim 9, in addition to the light emission function prescribed | regulated by the law, a decoration function is added and the frame which was excellent in the design as a part of vehicle can be provided.

FIG. 2 is a perspective view showing a configuration of a side turn signal lamp and a vehicle to which the side turn signal lamp is mounted, and a diagram showing a light emission angle defined by the regulations of the side turn signal lamp. It is a disassembled perspective view of the side turn signal lamp which concerns on this invention. It is a top view of the side turn signal lamp which concerns on this invention. 4A, 4B, and 4C are an XX sectional view, a YY sectional view, and a ZZ sectional view of FIG. 5A, 5B, 5C, and 5D are a rear view, an XX sectional view, a YY sectional view, and a ZZ sectional view of the inner lens, respectively. It is the figure which showed the light emission and light transmission pattern in the side turn signal lamp which concerns on this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In FIG. 1, 1 (A) shows a side turn signal lamp 2 as a housing according to an embodiment of the present invention that is disposed on a fender panel of a passenger car. The side turn signal lamp 2 is attached to each of the left and right fender panels of the vehicle, and the side turn signal lamp 2 on the vehicle course change side flashes when the direction of travel is changed by turning the vehicle left or right, changing lanes, etc. By doing so, it is for informing the other vehicle or the like of the change direction of the vehicle course.

  Moreover, 1 (B) is a figure which showed the light emission angle area | region of the side turn signal lamp prescribed | regulated by law. Radiation angle area of light described in the area corresponding to the third quadrant in the coordinates formed by the vertical line YY extending to the vehicle body 1 with the side turn lamp 2 as a reference and the horizontal line XX orthogonal thereto In this case, when the position of the vertical line Y-Y is set to an angle of 0 °, an area of 5 ° to 60 ° in the clockwise direction must be secured.

  Next, in the configuration of this embodiment of the side turn signal lamp 2 shown in FIG. 2, first, the power supply terminal 6 is disposed in the terminal receiving portion 8 formed in the outer housing 7. The power supply terminal 6 includes a lead portion 6b extended to receive power from the outside and an insertion receiving portion 6a for inserting and fixing the light source 5 (bulb in the present embodiment). The light source end portion 5a is inserted into the portion 6a and held by the insertion receiving portion 6a.

  Next, an inner lens 4 that guides the light emitted from the light source 5 to the end of the housing is disposed so as to cover the light source 5. The inner lens 4 is usually formed of a transparent material having a light guiding action such as PMMA or polycarbonate resin. The outer housing 7 is formed of a colored non-transparent material such as polycarbonate resin.

  Next, the outer lens 3 is disposed so as to cover the inner lens 4, and the outer lens 3 and the outer housing 7 are joined together with heat welding, ultrasonic welding, laser welding, injection resin, and the like. The side turn lamp 2 is formed by joining by means or mechanical fitting. The outer lens 3 is also formed of a transparent material having a light guiding action such as PMMA or polycarbonate resin, like the inner lens 4.

As the joining means in the present embodiment, a joining means disclosed in Japanese Patent Application Laid-Open No. 2003-272417 is used when assembling the complete body of the casing in the mold. In the primary molding step, the technology simultaneously molds the outer lens 3 and the outer housing 7, then opens the mold, and then arranges the feeding terminal 6, the light source 5, and the inner lens 4 in the outer housing 7 in this order. In this technique, the mold in which the outer lens 3 is formed is moved to the position of the mold in which the outer housing 7 is formed, the mold is closed, and the secondary injection is performed to perform the secondary injection. As the resin material to be used, a resin material used for the outer lens 3 or the outer housing 7 is used.

  As shown in FIG. 3, the outer lens 3 is divided into a region where the light diffusion means 3a (lens cut in this embodiment) is formed on the outer surface and a region (skeleton region) 3b where the light diffusion means 3a is not formed. I know. A part of the light emitted from the light source 5 to the outer lens 3 is emitted by the light diffusing means 3a to an area defined by the law shown in FIG. In the skeleton region where the light diffusing means 3 a is not provided, a part of the light emitted from the light source 5 is incident on the inner lens 4, and the light is transmitted by the light transmission action of the inner lens 4. The light pattern extends to the body end 2a and can be visually recognized from the outside through the outer lens 3. Furthermore, the light transmission effect of the inner lens 4 can be visually recognized as if another light source is present in addition to the light source 5, and the design of the housing can be improved.

  As shown in FIG. 4, the inner lens 4 is formed with a light incident part 4a in order to make light emitted from the light source 5 more efficiently incident. The light incident part 4a extends to a position covering the light source head 5b. When the extended portion 4b is extended and the inner lens is disposed on the side turn signal lamp 2, the curved surface portion 4c having a shape along the light source curved surface 5c while keeping a certain distance from the light source curved surface portion 5c. , And a curvature surface portion 4d. Further, the light incident part side of the inner lens 4 has a thick shape, and gradually becomes thinner as it goes to the end of the housing, and has a shape along the shape of the outer lens 3. . Further, as shown in FIG. 4B, the inner lens 4 has a leg portion 4e, and the leg end portion 4f is formed in a peripheral shape to be sandwiched and fixed between the outer lens 3 and the outer housing 7. The flange portion 4g is integrally formed.

5A, 5C, and 5D, the outer lens side surface of the inner lens 4 is coated with a coating S using a metal material (in this embodiment, aluminum or Stainless steel material is used. As film forming means for the film, film forming means such as physical vapor deposition (PVD), chemical vapor deposition (CVD), and sputtering are used.
As a film formation location, it forms in the range of S1, S2 shown by FIG.5 (C), (D). By adopting such a configuration, when the casing is lit, the central portion of the inner lens shines, and light is blocked at the film formation location, so that a light emission pattern that shines in a band shape can be obtained. The metallic color can be visually recognized from the outside, and the design can be further improved.

  Further, from FIGS. 5B, 5C, and 5D, the light reflecting means W (the main lens 4) is provided on the outer housing side surface of the inner lens 4 in order to radiate incident light to the outer lens side more efficiently. In the embodiment, a wrinkle is used) is provided on the back side of the inner lens, and the light reflecting means W is divided into a light reflecting means W1 provided on the inner lens back face portion 4h and a light reflecting means W2 provided on the light incident portion 4a. It is divided.

From FIG. 6, the light reflecting means W1 reduces the leakage of the light incident on the inner lens 4 to the back side, enables efficient transmission to the housing end and radiation to the outer lens side, The light reflecting means W2 partially reflects the light emitted from the light source 5 while partially reflecting it, and the light diffusing means formed in the decoration side region 2b where the inner lens 4 is disposed and the outer lens 3. The brightness of the functional region 2c provided with 3a can be made uniform. The light reflecting means W is not limited to the texture, and may be a metal film (a metal film formed by half mirror vapor deposition) that can transmit light to some extent. Further, since the light reflecting means W is similarly provided in the inner lens extending portion 4b, it plays the role of hiding the presence of the light source when the casing is viewed from the outside, particularly when it is not lit. The designability as can be further improved.

In the present invention configured as described above, the side turn signal lamp 2 mounted on the vehicle fender panel includes an inner lens 4 having a light guide action between the outer housing 7 and the outer lens 3. Even if the side turn signal lamp 2 is composed of the outer lens 3 and the outer housing 7 having an asymmetric shape around the light source 5 disposed in the lamp 2, the entire lamp can be illuminated uniformly, It is possible to provide an excellent side turn signal lamp.
Further, even if the side turn signal lamp 2 has an end shape to which light emitted from the light source 5 is not sufficiently transmitted, the inner lens 4 having a light guide function having the leg portion 4e along the end shape is used as the outer lens. 3 and the outer housing 7, the light can be sufficiently transmitted to the end portion, the entire lamp 2 can be illuminated uniformly, and the side turn signal lamp 2 excellent in design can be obtained. Can be provided.
Further, by providing the light diffusing means 3a on a part of the outer lens 3 surface, the entire side-turn signal lamp 2 is uniformly illuminated, and the light emission region defined by the law by the light refracting action of the light diffusing means is provided. A side-turn signal lamp 2 that is excellent in design and capable of satisfying light emission can be provided.
Further, by providing a metal film S on the surface of the inner lens 4 disposed between the outer lens 3 and the outer housing 7, the contrast between the resin and the metal becomes clear when not lit, and the metal film portion is not illuminated when lit. It is possible to provide the side turn signal lamp 2 excellent in design, in which the light is blocked, only the resin portion P can be lit, and a desired light emission pattern such as a belt shape can be obtained.
Further, by providing the light reflecting means W on the surface of the inner lens 4 disposed between the outer lens 3 and the outer housing 7 on the outer housing side, light incident on the inner lens 4 is prevented from leaking by the light reflecting means W. Therefore, it is possible to provide the side turn signal lamp 2 that can be efficiently radiated to the outer lens side and has excellent design.

DESCRIPTION OF SYMBOLS 1 Car body 1a Fender panel 2 Side turn signal lamp 2a Case end part 2b Decoration side area 2c Function area 3 Outer lens 3a Light diffusion means 3b Skeleton area 4 Inner lens 4a Light incident part 4b Extension part 4c Curvature surface part 4d Curvature surface part 4e Leg part 4f Leg part end part 4g Gutter part 4f Inner lens back surface part 5 Light source 5a Light source end part 5b Light source head part 5c Light source curved surface 6 Feed terminal 6a Insertion receiving part 6b Lead part 7 Outer housing 8 Terminal receiving part S Film W Light Reflection means P Resin part

Claims (9)

  An outer housing formed of an opaque material, a power supply terminal disposed in the outer housing, a light source fixed in contact with the power supply terminal, and an outer lens formed of a transparent material, the outer housing including the outer lens In the vehicle housing formed integrally with each other, an inner lens that guides light emitted from the light source to the housing end is disposed between the outer housing and the outer lens. A light incident part for taking in light emitted from the light source and a leg part extending in the direction of the outer housing are provided at the peripheral end part, and the leg part end part is sandwiched between the outer housing and the outer lens. And an integrally formed vehicle housing.   The light incident portion of the inner lens includes an extending portion that extends to a position that covers the light source head, and a curvature surface portion that has a shape that follows the light source. Vehicle housing.   When the outer housing and the outer lens are mounted on the vehicle with reference to the position of the light source disposed in the outer housing, the shape on the front side of the vehicle is set longer than the shape on the rear side of the vehicle. The vehicle housing according to claim 1, wherein an inner lens is disposed between the outer housing and the outer lens on the front side of the vehicle.   In the state where the outer housing and the outer lens are mounted on the vehicle with reference to the position of the light source disposed in the outer housing, the shape on the vehicle rear side is set shorter than the shape on the vehicle front side. The vehicle housing according to any one of claims 1 to 3, wherein a light diffusion means is provided on the vehicle rear side of the outer lens.   The vehicle casing according to any one of claims 1 to 4, wherein a metal film is formed on a surface of the inner lens on the outer lens side.   The vehicle casing according to any one of claims 1 to 5, wherein light reflecting means is provided on a surface of the inner lens on the outer housing side.   The vehicle housing according to any one of claims 1 to 6, wherein the light source is an LED.   The vehicle casing according to any one of claims 1 to 6, wherein the light source is a bulb.   The vehicle housing according to any one of claims 1 to 8, wherein the vehicle housing is a side turn signal lamp.

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