JP2010073409A - Lighting fixture for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting fixture for vehicle in which a concealing seal can be pasted on a precise position on a lamp lens. <P>SOLUTION: The lighting fixture for vehicle 10 includes a light source 12, a reflector 14 which is arranged so as to surround the light source 12 and reflects light from the light source 12, and a lamp lens 16 which is installed on an opening side of the reflector 14. The light source 12 is installed in a socket 18. A positioning line 20 for the concealing seal 30 is formed on the rear face side of the lamp lens 16. Thereby, the concealing seal 30 can be pasted on a precise position on the lamp lens 16. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicular lamp, and more particularly to a vehicular lamp that forms a light distribution pattern of a passing beam.

  In recent years, it has been possible to move freely across the Dover Strait by car between Britain and the European continent. However, the light distribution pattern of the headlight is set to be suitable for left-hand traffic in the UK, and is set to be suitable for right-hand traffic in the European continent.

  Therefore, when a vehicle with a light distribution pattern suitable for left-hand traffic moves to the European continent, or when a vehicle with a light distribution pattern suitable for right-hand traffic moves to the United Kingdom, the light distribution pattern of the headlights is reversed.

  Therefore, there is a problem that the light distribution pattern of each passing beam gives glare to the oncoming vehicle.

  In order to solve this problem, Patent Document 1 describes that a light distribution switching lens capable of changing the angle of a passing beam is attached to a lamp lens with a sufficient interval.

  Patent Document 2 discloses a projection provided with a light distribution switching mechanism capable of switching light distributions having different cut line heights and cut line shapes by sliding two light-shielding shades in parallel up and down. A type automotive headlamp is described.

Also, in the case of headlamps designed to meet the requirements for traffic on only one side of the road according to Dover legislation, it will not cause discomfort to users in countries that travel on the opposite side of the country where the headlamps were designed It is obliged to take appropriate measures.
Japanese Patent Laid-Open No. 7-272413 JP 2006-73224 A

  However, in Patent Document 1, since only the light distribution switching lens is attached to the lamp lens to change the angle, it is not sufficient to obtain a desired light distribution pattern of a passing beam.

  Further, in Patent Document 2, since it is necessary to provide a mechanism capable of sliding the two light-shielding shades vertically in the vehicle lamp, the mechanism of the vehicle lamp becomes complicated.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a vehicular lamp that can obtain a desired light distribution pattern of a passing beam with a simple configuration.

  To achieve the above object, a vehicular lamp according to the present invention includes a light source, a reflector arranged to surround the light source, and reflecting light from the light source, and a lamp lens provided on the opening side of the reflector. And at least one positioning line for a concealment seal extending in the longitudinal direction is formed on the lamp lens.

  According to the present invention, since the positioning line for the concealment seal is formed on the lamp lens, the concealment seal can be attached to the lamp lens at an accurate position. As a result, it is possible to accurately obtain a light distribution pattern of a passing beam suitable for left-hand traffic and right-hand traffic. Since the positioning line is formed in the vertical direction with respect to the vehicle lamp, light from the light source is less likely to diffuse in the vertical direction. Therefore, the influence of glare (glare) can be reduced.

  In the vehicular lamp according to the present invention, it is preferable that the positioning line is formed on a back surface side of the lamp lens. When a convex or concave positioning line is formed on the surface side of the lens, there is a possibility that dirt adheres to the positioning line. When the positioning line is formed on the surface side of the lens, the hard coat coverage is deteriorated, scratches or the like are easily generated, and the light distribution is easily disturbed.

  On the other hand, when it is formed on the back surface side, the back surface side is covered with a housing or the like, so that there is little risk of contamination, and there are few problems with hard coat coverage, scratches, and the like.

  In the vehicular lamp according to the present invention, it is preferable that the positioning line is formed on the lamp lens by a laser marker.

  In the vehicle lamp of the present invention, in the invention described above, it is preferable that the positioning line is formed by a recess or a protrusion formed in a mold for molding the lamp lens.

  According to the present invention, since the positioning line for the concealment seal is formed on the lamp lens of the vehicular lamp, the concealment seal can be attached to the lamp lens at an accurate position. It is possible to obtain a light distribution pattern of a passing beam suitable for left-hand traffic and right-hand traffic.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. The present invention will be described with reference to the following preferred embodiments, but can be modified in many ways without departing from the scope of the present invention, and other embodiments than the present embodiment can be used. Can do. Accordingly, all modifications within the scope of the present invention are included in the claims.

  FIG. 1 shows a front view and a sectional view of a vehicular lamp to which the present invention is applied. Sectional drawing (b) has shown sectional drawing along the AA line of front view (a).

  As shown in FIG. 1, a vehicular lamp 10 includes a light source 12, a reflector 14 that is disposed so as to surround the light source 12 and reflects light from the light source 12, and a lamp lens 16 that is attached to the opening side of the reflector 14. It has. The light source 12 is attached to the socket 18.

  A positioning line 20 for a concealment seal is formed on the back side of the lamp lens 16. In the present embodiment, the positioning line 20 is formed simultaneously when the lamp lens 16 is molded with a mold. On the mold, a recess is formed in a region corresponding to the position where the positioning line is formed, and the lamp lens is resin-molded with the mold. Thereby, a convex positioning line 20 is formed on the back surface of the lamp lens. The size of the convex positioning line 20 is, for example, a width of 0.2 to 0.3 mm and a height of about 0.5 mm. The cross-sectional shape of the positioning line 20 can be a U shape, a V shape, or the like.

  The positioning line 20 is formed in the vertical direction with respect to the vehicular lamp 10 mounted on the vehicle. By forming in the vertical direction, the positioning line 20 can be prevented from diffusing light from the light source in the vertical direction. Therefore, the influence of glare (glare) can be reduced.

  On the other hand, when the positioning line is formed in the lateral direction with respect to the vehicle lamp, the light from the light source may be diffused in the vertical direction. When the light is diffused in the vertical direction, the light distribution pattern is changed to a passing beam, which may cause illusion to the oncoming vehicle.

  The positioning line 20 is preferably composed of a single straight line. Generally, when a line is formed on a lens, light diffusion tends to occur at the start point and the end point. When the positioning line 20 is constituted by a continuous straight line, the start point and the end point are each one place. That is, light diffusion occurs only at two locations. On the other hand, when the positioning line is composed of a dotted line and a broken line, the number of start points and end points is larger than that of a straight line. Therefore, light diffusion occurs in many places, which may cause illusion for oncoming vehicles.

  The method of forming the positioning line 20 is not limited to the method of forming the recess in the above-described mold. For example, as another method, a positioning line can be formed with a laser marker on a lamp lens formed of a mold.

  The lamp lens 16 is made of a light transmissive resin material such as polycarbonate resin or acrylic resin.

  The reflector 14 is basically formed as a concave curved surface such as a paraboloid of revolution. The reflector 14 is made of, for example, a resin material. An aluminum deposition film or the like is formed on the surface, and a mirror finish is applied.

  The light source 12 is a bulb that is generally used as a headlight of an automobile. For example, a bulb such as an incandescent bulb, a halogen bulb, or a metal halide lamp is used. The light source 12 is fixedly held by a socket 18 and is configured to be supplied with power.

  In the vehicular lamp 10 shown in FIG. 1, when the traffic direction of the vehicle is reversed, a concealment seal 30 indicated by a dotted line is attached to the lamp lens 16 with reference to the positioning line 20. In the present embodiment, two positioning lines 20 are formed on the lamp lens 16. The concealment seal 30 is positioned in the horizontal direction so as to enter between the two positioning lines 20, and is positioned in the vertical direction so as not to exceed the upper ends of the two positioning lines 20. By using the two positioning lines 20, the concealment seal 30 can be accurately attached.

  Moreover, when using the concealment seal | sticker with which the magnitude | size is not specified, a concealment seal | sticker can be correctly affixed by cutting a concealment seal | sticker according to two positioning lines.

  However, even if the positioning line 20 is one, the concealment seal 30 can also be affixed correctly.

  2A shows a state in which the vehicular lamp 10 is mounted on the vehicle V. FIG. The vehicle V is an example of a right-hand traffic vehicle. When the low beam is turned on in this state, a light distribution pattern P1 having a cut-off line L1 extending obliquely upward on the right side with respect to the horizontal line H is formed as shown in FIG. A light distribution pattern P1 suitable for right-hand traffic can be obtained.

  FIG. 3A shows a state in which the vehicular lamp 10 is mounted on the vehicle V, as in FIG. A concealment seal 30 is attached to the lamp lens 16 of the vehicle V with reference to the positioning line 20.

  When the low beam is turned on in this state, a light distribution pattern P2 having a cutoff line L2 substantially parallel to the horizontal line H is formed as shown in FIG. Thereby, even if it is a vehicle lamp for right-hand traffic, the light distribution pattern P2 suitable for left-hand traffic can be obtained.

  The present invention is not limited to the above-described embodiments, and many modifications are possible based on the above description. For example, for a vehicle lamp for a left-handed vehicle, a positioning line and a concealment seal are provided at positions opposite to the left and right in the above embodiment, resulting in a light distribution pattern that is a left-right inverted version of FIG. 3 (b) can be changed to a light distribution pattern that is reversed left and right, and a light distribution pattern suitable for right-hand traffic can be obtained.

The front view and sectional drawing of the vehicle lamp which concern on embodiment of this invention An explanatory view for explaining one embodiment of a vehicle to which a vehicular lamp of the present invention is applied, and an orientation pattern An explanatory view for explaining an embodiment of a vehicle to which a vehicular lamp of the present invention with a concealment seal is applied, and an orientation pattern

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Vehicle lamp, 12 ... Light source, 14 ... Reflector, 16 ... Lamp lens, 18 ... Socket, 20 ... Positioning line, 30 ... Concealment seal, V ... Vehicle

Claims (4)

A light source;
A reflector arranged to surround the light source and reflecting light from the light source;
A lamp lens provided on the opening side of the reflector;
A vehicular lamp characterized in that at least one concealing seal positioning line extending in the longitudinal direction is formed on the lamp lens.   The vehicular lamp according to claim 1, wherein the positioning line is formed on a back surface side of the lamp lens.   The vehicular lamp according to claim 1, wherein the positioning line is formed on the lamp lens by a laser marker.   The vehicular lamp according to claim 1 or 2, wherein the positioning line is formed by a recess or a protrusion formed in a mold for molding the lamp lens.

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