JP2009117115A - Vehicular lamp - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular lamp that maintains quality by ensuring cover rigidity. <P>SOLUTION: The vehicular lamp 10 includes a lamp body 11 storing light sources 16, 18, and 20, and a translucent sheet lens 12, wherein the lamp body 11 includes welding partition plates 25, 26 to be welded to the sheet lens 12, at the end part of each partition wall 11a, 11b arranged between a plurality of lamp chambers 13, 14, and 15 demarcated by the sheet lens 12. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vehicular lamp in which a light source such as an LED is accommodated in a lamp chamber defined by a lamp body and a cover.

  As an example of a conventional vehicle lamp, as shown in FIG. 4, a vehicle lamp 100 in which a sheet-like lens 101 is welded to a lamp body 102 is known (see, for example, Patent Document 1).

Japanese Patent Laying-Open No. 2005-268015 (FIG. 1)

  However, in the vehicular lamp 100 disclosed in Patent Document 1, since the lens 101 having a cover function is thin and thick, for example, the vehicular lamp 100 is large and the lens 101 is curved three-dimensionally. If there is a large external force from the outside, the lens 101 may be deformed inward.

  This invention is made | formed in view of the situation mentioned above, The objective is to provide the vehicle lamp which can ensure the rigidity of a cover and can maintain quality.

  The object of the present invention is a vehicular lamp including a lamp body containing a light source and a light-transmitting cover, and the lamp body partitions at least a lamp chamber defined by the cover. This is achieved by a vehicular lamp characterized in that a part of the partition wall is provided with a welded portion that extends toward the cover and is welded to the cover.

  According to the vehicular lamp having the above-described configuration, the welded portion that is extended to a part of the partition wall that divides at least the lamp chamber divided by the lamp body and the cover into contact with the cover and is welded to the cover. It has. Thus, for example, even if the vehicular lamp is large and the cover is curved three-dimensionally, when an external force is applied from the outside, deformation to the inside of the cover is suppressed by the partition wall. Rigidity can be ensured and quality can be maintained.

  In the vehicular lamp configured as described above, it is preferable that the cover is a sheet material formed in a predetermined shape.

  According to the vehicular lamp having such a configuration, since the cover is a sheet material molded into a predetermined shape, molding is facilitated, and the overall weight can be reduced.

  In the vehicular lamp configured as described above, it is preferable that the cover is laminated with a colored printing layer.

  According to the vehicular lamp having such a configuration, since the cover can be formed into a film by laminating the colored printing layer on the cover, the conventional mold is diverted to cope with the different colors of the lens, It is possible to make a difference only by the color difference of the base material and the presence or absence of printing. For this reason, waste of materials is eliminated and man-hours are not required. In addition, when printing is applied, it can be easily applied to the correspondence such as presence / absence of graphics and differences in variations. Thereby, productivity can be improved.

  In the vehicular lamp having the above-described configuration, it is preferable that the lamp body has a similar color to the colored printing layer in a fabric color of a portion where the cover is welded.

  According to the vehicular lamp having such a configuration, when the cover is welded to the welding wall of the lamp body, even if the ink of the colored print layer evaporates, the fabric color of the lamp body in the evaporated ink portion is the same as that of the ink. Since it is a color, it does not stand out and can maintain high quality.

  In the vehicular lamp configured as described above, it is preferable that the light source is an amber-based semiconductor light emitting element, and a complementary color inner film is laminated on the cover. The complementary color referred to here means a color relationship capable of synthesizing white light.

  According to the vehicular lamp having such a configuration, when it is necessary to make the cover multi-colored, such as a combination lamp including a turn signal lamp and a back lamp, the turn signal lamp is formed using the cover as a red base material. If the light source is an amber system, since the amber system has a single wavelength, the amber system color can be displayed through the red cover. In addition, a white color can be displayed on the back lamp by laminating a complementary color inner film.

  According to the vehicular lamp according to the present invention, in a vehicular lamp that includes a lamp body that contains a light source and a cover having translucency, the rigidity of the cover can be secured and the quality can be maintained. Can provide lighting fixtures.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

  1 to 3 show an embodiment of a vehicular lamp according to the present invention, FIG. 1 is a horizontal sectional view of the vehicular lamp according to an embodiment of the present invention, and FIG. 2 is a vehicular lamp of FIG. FIG. 3 is an enlarged view of a welded portion in a modification of the vehicular lamp according to the embodiment of the present invention. Note that the front, rear, left and right in the description are used in the direction of the vehicle. That is, the left side in FIG. 1 is the rear of the vehicle.

  As shown in FIGS. 1 and 2, a vehicular lamp 10 according to an embodiment of the present invention includes a lamp lamp body 11 and a sheet lens 12 that is a transparent cover, from left to right. Is a rear combination lamp including first, second, and third lamp chambers 13, 14, and 15 partitioned by partition walls 11a and 11b. And the 1st lamp chamber 13 is equipped with the 1st lamp unit 17 which functions as a turn signal lamp which accommodated several LED16 which is a light source. In addition, the second lamp chamber 14 includes a second lamp unit 19 that functions as a stop lamp and a tail lamp that house one bulb 18 that is a light source. The third lamp chamber 15 includes a third lamp unit 21 that functions as a back lamp that houses one bulb 20 that is a light source.

  The lamp lamp body 11 is made of a thermoplastic polymer material for a structure having excellent durability, vibration resistance, and the like, such as PC (polycarbonate). The lamp lamp body 11 has a thickness dimension of, for example, 1 mm, and the first lamp chamber forming recess 22, the second lamp chamber forming recess 23, and the third lamp chamber forming recess 24 are formed by the partition wall 11a. , 11b and arranged side by side. A first welding partition plate 25 and a second welding partition plate 26, which are welded portions, extend from the end portions of the partition walls 11 a and 11 b on the sheet lens 12 side. And the outer periphery welding peripheral plate 27 is formed in these outer sides. The lamp lamp body 11 uses a PC alloy such as a PC / ABS (acrylonitrile / butadiene / styrene resin) alloy, a PBT alloy such as a PBT (polybutylene terephthalate) / PC alloy, or the like, instead of the PC. It may be injection molded.

  The sheet lens 12 is formed by vacuum molding a sheet material having a thickness of, for example, 1 mm into a three-dimensionally curved shape using a transparent thermoplastic polymer material having excellent impact resistance and weather resistance such as PC. Yes.

  In the first lamp unit 17, an inner lens 28 formed to have a thickness of, for example, 2 mm is assembled on the front surface of the plurality of LEDs 16 using a transparent acrylic resin.

  The first welding partition 25 extends rearward from the end of the partition wall 11a disposed between the first lamp chamber forming recess 22 and the second lamp chamber forming recess 23. And is in contact with the back surface of the sheet lens 12.

  The second welding partition 26 extends rearward from the end of the partition wall 11b disposed between the second lamp chamber forming recess 23 and the third lamp chamber forming recess 24. In the same manner as the first welding partition plate 26, it is in contact with the back surface of the sheet lens 12.

  As shown in FIG. 2, the colored printing layer 29 is printed on the back surface of the sheet lens 12, and the first welding separator 25, the second welding separator 26, and the outer peripheral welding peripheral plate 27 (see FIG. 2). The laser welding portion 30 is formed by irradiating a laser beam from the outside to the abutting portion with reference 1). Here, in the lamp lamp body 11, the fabric color of the partition wall 11 a in the laser welding portion 30 portion to which the sheet lens 12 is welded and the first welding partition plate 25 is set to the same color as the colored printing layer 29. .

In the seat lens 12, the contact portions of the first welding partition plate 25, the second welding partition plate 26, and the outer peripheral welding peripheral plate 27 are laser welded from the outside, whereby the seat lens 12 and the lamp lamp The body 11 is defined such that rigidity is secured at each of the first lamp unit 17, the second lamp unit 19, and the third lamp unit 21.
The seat lens 12 and the welding partition plates 25 and 26 may be partially welded. However, if the welding is performed over the entire circumference, the lamp units 17, 19, and 21 are independently waterproofed. can do.

  In the seat lens 12, a laser welding portion 30 is formed at a contact portion between the first welding partition plate 25, the second welding partition plate 26, and the outer periphery welding peripheral plate 27. Even if the sheet lens 12 is large and curved three-dimensionally, the sheet lens 12 will not be deformed inward when an external force is applied from the outside.

  The colored printing layer 29 may have the same color for the entire surfaces of the first lamp unit 17, the second lamp unit 19, and the third lamp unit 21, or may have different functional colors. For example, it is possible to print different colored printing layers 29 in which the first lamp unit 17 portion is amber, the second lamp unit 19 portion is red, and the third lamp unit 21 is white.

  Next, with reference to FIG.1 and FIG.3, the modification of the vehicle lamp which concerns on one Embodiment of this invention is demonstrated.

  As shown in FIGS. 1 and 3, in this modification, the LED 16 of the first lamp unit 17 is formed as an amber-based semiconductor light emitting element, and the sheet lens 12 is formed as a red base material. A red complementary inner film 31 is laminated on the back surface of the sheet lens 12 on the third lamp unit 21 side.

  By doing this, since the amber light emitted from the LED 16 has a single wavelength, the first lamp unit 17 is displayed in amber (orange) color through the red sheet lens 12, and the third The lamp unit 21 can be displayed in white that is a complementary color of red.

  When the vehicular lamp 10 is used as a front combination lamp, the first lamp unit 17 functions as a turn signal lamp, the second lamp unit 19 functions as a clearance lamp, and the third lamp unit 21 functions as a fog lamp. You can also.

  As described above, according to the vehicular lamp 10 of the present embodiment, the partition wall 11 a that partitions the lamp chamber divided by the lamp lamp body 11 and the seat lens 12 into the plurality of lamp chambers 13, 14, 15. The welding partition plates 25 and 26 are extended to the end of the sheet lens 11b and are welded to the sheet lens 12. Thereby, even if the vehicular lamp 10 is large and the seat lens 12 is curved three-dimensionally, when an external force is applied from the outside, the partition walls 11a and 11b bring the seat lens 12 into the inside. Therefore, it is possible to maintain the quality by securing the rigidity of the lens.

  Further, according to the vehicular lamp 10, since the seat lens 12 is a sheet material molded into a predetermined shape, the molding becomes easy and the overall weight can be reduced.

  Further, according to the vehicular lamp 10, since the colored printing layer 29 is printed on the sheet lens 12, the sheet lens 12 can be formed into a film, so that the conventional mold is still used to cope with the different colors of the lens. Thus, it is possible to make a difference only by the color difference of the base material and the presence or absence of printing. For this reason, waste of materials is eliminated and man-hours are not required. In addition, when printing is applied, it can be easily applied to the correspondence such as presence / absence of graphics and differences in variations. As a result, productivity can be dramatically improved.

  Further, according to the vehicular lamp 10, even when the ink of the colored printing layer 29 evaporates when the sheet lens 12 is welded to the welding partition plates 25 and 26 of the lamp lamp body 11, in the evaporated ink portion. Since the fabric color of the lamp lamp body 11 is similar to that of ink, it is not conspicuous and can maintain high quality.

  Further, according to the vehicular lamp 10, when the sheet lens 12 needs to be multicolored, such as a combination lamp including a turn signal lamp and a back lamp, the first lens is used as the red base material. If the LED 16 of the lamp unit 17 is an amber system, since the amber system has a single wavelength, the amber color can be displayed through the red sheet lens 12. Further, the second lamp unit 19 can display the base material color red as it is. Moreover, white color can be displayed by laminating the complementary inner film 31 that complements the red color on the third lamp unit 21.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimension, numerical value, form, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

  For example, an LED or a bulb can be selectively used as the light source, and the number thereof is preferably selected as appropriate according to the lamp unit to which the light source is applied.

It is a horizontal sectional view of the vehicular lamp concerning one embodiment of the present invention. It is an enlarged view of the welding part of the vehicle lamp of FIG. It is an enlarged view of the welding part in the modification of the vehicle lamp which concerns on one Embodiment of this invention. It is a longitudinal cross-sectional view of the conventional vehicle lamp.

Explanation of symbols

10 Vehicle Lamps 11 Lamp Lamp Body (Lamp Body)
11a, 11b Partition wall 12 Sheet lens (cover)
16 LED (light source)
18 bulb (light source)
20 bulb (light source)
25 1st welding partition (welding part)
26 Second welding partition (welded part)
29 Colored printing layer 31 Complementary color inner film

Claims (5)

A vehicle lamp comprising a lamp body containing a light source, and a cover having translucency,
The lamp body includes a welding portion that extends toward the cover and is welded to the cover at a part of a partition wall that divides the lamp chamber partitioned by the cover into a plurality of parts. Light fixture.   The vehicular lamp according to claim 1, wherein the cover is a sheet material formed in a predetermined shape.   The vehicular lamp according to claim 1, wherein the cover is laminated with a colored printing layer.   The vehicular lamp according to any one of claims 1 to 3, wherein the lamp body has a fabric color of a portion where the cover is welded similar to that of the colored printing layer. The light source is an amber-based semiconductor light emitting element;
The vehicular lamp according to any one of claims 1 to 4, wherein a complementary color inner film is laminated on the cover.

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