WO2019208154A1 - Lighting tool for vehicle - Google Patents

Lighting tool for vehicle Download PDF

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Publication number
WO2019208154A1
WO2019208154A1 PCT/JP2019/015028 JP2019015028W WO2019208154A1 WO 2019208154 A1 WO2019208154 A1 WO 2019208154A1 JP 2019015028 W JP2019015028 W JP 2019015028W WO 2019208154 A1 WO2019208154 A1 WO 2019208154A1
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WO
WIPO (PCT)
Prior art keywords
substrate
reflector
light emitting
cover
lamp
Prior art date
Application number
PCT/JP2019/015028
Other languages
French (fr)
Japanese (ja)
Inventor
隆之 井出
智之 勝間田
Original Assignee
株式会社小糸製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社小糸製作所 filed Critical 株式会社小糸製作所
Priority to CN201980027253.9A priority Critical patent/CN112005046A/en
Publication of WO2019208154A1 publication Critical patent/WO2019208154A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/36—Combinations of two or more separate reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/39—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings

Definitions

  • the present disclosure relates to a vehicular lamp configured to reflect light emitted from first and second light emitting elements mounted on both surfaces of a substrate toward the front of the lamp by first and second reflectors.
  • vehicular lamp configured to reflect light emitted from first and second light-emitting elements toward the front of the lamp by first and second reflectors.
  • Patent Document 1 describes a configuration in which the first and second light emitting elements are mounted on both upper and lower surfaces of a substrate in such a vehicle lamp.
  • a shade for shielding direct light emitted from the first light emitting element mounted on the upper surface of the substrate toward the front of the lamp is attached to the upper surface of the substrate.
  • it is configured to prevent the generation of glare light, but it is desired to realize such a function without increasing the number of components as much as possible.
  • An object of the present invention is to provide a vehicular lamp that can suppress the occurrence of stray light from the first and second light emitting elements without increasing the number of components.
  • the present disclosure is intended to achieve the above-described object by devising the configurations of the first and second reflectors.
  • the vehicular lamp according to the present disclosure is A substrate having the first light emitting element mounted on one surface and the second light emitting element mounted on the other surface; a first reflector for reflecting the emitted light from the first light emitting element toward the front of the lamp;
  • a vehicle lamp comprising: a second reflector that reflects the emitted light from the second light emitting element toward the front of the lamp;
  • the first reflector has a first reflection surface portion for reflecting light emitted from the first light emitting element, and a first reflector disposed so as to cover the substrate at a position closer to the substrate than the first reflection surface portion.
  • the second reflector is a second reflecting surface portion for reflecting the emitted light from the second light emitting element, and a second reflecting surface that covers the substrate at a position closer to the substrate than the second reflecting surface portion.
  • the first cover part is formed with a first light transmitting part for allowing the light emitted from the first light emitting element to enter the first reflecting surface part
  • the second cover part is formed with a second light transmitting part for making the emitted light from the second light emitting element incident on the second reflecting surface part
  • the substrate is sandwiched from both sides of the substrate by the first cover portion and the second cover portion.
  • first reflector the “second reflector”, and the “substrate” is not particularly limited.
  • first cover part and the “second cover part” may be disposed so as to cover the entire area of the substrate, or may be disposed so as to cover a partial area of the substrate.
  • first translucent portion and the “second translucent portion” are configured so that light emitted from each of the first and second light emitting elements is incident on each of the first and second reflective surface portions.
  • the specific configuration is not particularly limited, and may be configured by, for example, an opening such as a through hole or a slit or a transparent window.
  • the specific configuration for “clamping” the substrate from both sides thereof is not particularly limited, and may be configured to be performed, for example, by screw tightening, lance engagement, or adhesion.
  • the vehicular lamp according to the present disclosure is configured to reflect the emitted light from the first and second light emitting elements mounted on both surfaces of the substrate toward the front of the lamp by the first and second reflectors.
  • a first cover portion that covers the substrate is disposed on the substrate side of the first reflector with respect to the first reflector, and light emitted from the first light emitting element is incident on the first reflection surface portion on the first cover portion. The 1st translucent part of this is formed.
  • a second cover portion that covers the substrate is disposed closer to the substrate than the second reflection surface portion of the second reflector, and light emitted from the second light emitting element is input to the second reflection surface portion on the second cover portion.
  • a second light transmissive portion for incidence is formed. For this reason, it is possible to effectively suppress generation of stray light such as glare light due to light emitted from the first and second light emitting elements.
  • the substrate is sandwiched between the first cover portion and the second cover portion from both sides, the number of parts can be minimized and the generation of stray light can be suppressed.
  • the vehicular lamp configured to reflect the emitted light from the first and second light emitting elements mounted on both surfaces of the substrate toward the front of the lamp by the first and second reflectors. , The generation of stray light from the first and second light emitting elements can be suppressed without increasing the number of components.
  • the substrate holding structure can be simplified, thereby facilitating the assembly of the vehicle lamp. Is possible.
  • the lance engagement may be performed directly between the first cover portion and the second cover portion, or between the first cover portion and the substrate and between the second cover portion and the substrate. It may be configured to be performed respectively.
  • the board clamping structure at a position on the rear side of the lamp relative to each of the connection positions from the viewpoint of not affecting the light distribution performance of the vehicle lamp, but the board is securely clamped.
  • the substrate can be held in a state where the substrate is positioned at a plurality of positions on both the front and rear sides of each connection position without adversely affecting the light distribution performance.
  • the substrate is arranged with the surface on which the first light emitting element is mounted facing upward, and the first reflector is arranged on the upper side of the substrate. If the first reflector has a heat dissipation opening, heat generated by lighting the second light emitting element can be released to the space above the first reflector through the heat dissipation opening.
  • the first light emitting elements are arranged in a state where two first light emitting elements are arranged in the left-right direction
  • the first reflector is arranged in a state where the first reflecting surface portion and the first cover portion are arranged in the left-right direction.
  • the two first reflecting surface portions are used as heat radiation openings. If it is set as the structure formed in the connection position of two 1st reflective surface parts rather than a lamp
  • FIG. 1 Front view showing a vehicular lamp according to an embodiment of the present disclosure II-II sectional view of FIG. Sectional view along line III-III in Fig. 1
  • FIG. 2 which shows the 1st modification of the said embodiment.
  • FIG. 4 shows the 2nd modification of the said embodiment.
  • FIG. 1 is a front view showing a vehicular lamp 10 according to an embodiment of the present disclosure.
  • 2 is a cross-sectional view taken along line II-II in FIG. 1
  • FIG. 3 is a cross-sectional view taken along line III-III in FIG.
  • the direction indicated by X is “front” as a lamp (“front” as a vehicle).
  • the direction indicated by Y is the “left direction” orthogonal to “front” (“left direction” as a vehicle, but “right direction” in front view of the lamp).
  • the direction indicated by Z is “upward”. The same applies to other figures.
  • the vehicular lamp 10 is a two-wheeled vehicle headlamp, and includes a lamp body 12 and a transparent translucent cover 14 attached to a front end opening of the lamp body 12.
  • the lamp unit 20 is incorporated in the lamp chamber formed by The lamp unit 20 is supported by the lamp body 12 through an aiming mechanism (not shown).
  • FIG. 4 is a front view showing the lamp unit 20 disassembled into main components
  • FIG. 5 is a rear view thereof.
  • the lamp unit 20 includes a substrate 50 on which the first light emitting element 22 is mounted on the upper surface 50 a and the second light emitting element 24 on the lower surface 50 b, and the first light emitting element 22.
  • a first reflector 30 that reflects outgoing light toward the front of the lamp and a second reflector 40 that reflects outgoing light from the second light emitting element 24 toward the front of the lamp are provided.
  • the first light emitting elements 22 are arranged in a state in which two first light emitting elements 22 are arranged at a predetermined interval in the left-right direction.
  • the second light emitting element 24 is disposed at the center position in the left-right direction on the front side of the lamp relative to the two first light emitting elements 22.
  • Each of the first light emitting element 22 and the second light emitting element 24 is a white light emitting diode.
  • Each of the first light emitting elements 22 is arranged with its light emitting surface facing upward.
  • the second light emitting element 24 is arranged with its light emitting surface facing in a direction directly below.
  • a lighting control component for example, a resistor or a thermistor 52 for controlling the lighting of the first and second light emitting elements 22 and 24 is mounted on the rear region of the upper surface 50a of the substrate 50.
  • the first reflector 30 is disposed on the upper side of the substrate 50, and the second reflector 40 is disposed on the lower side of the substrate 50.
  • Each of the first and second reflectors 30 and 40 has a bilaterally symmetric shape, and a mirror surface treatment such as aluminum deposition is performed on the front surface thereof.
  • the first reflector 30 includes a pair of left and right first reflecting surface portions 32 and a first cover portion 34.
  • Each first reflection surface portion 32 is disposed so as to be located above each first light emitting element 22.
  • Each first reflective surface portion 32 includes a plurality of reflective elements 32s.
  • Each first reflection surface portion 32 reflects the emitted light from each first light emitting element 22 as light that spreads slightly in the left-right direction slightly downward by the plurality of reflection elements 32 s.
  • a low beam light distribution pattern is formed by the reflected light from the pair of left and right first reflecting surface portions 32.
  • Each first cover portion 34 is arranged so as to cover the substrate 50 at a position closer to the substrate 50 (that is, the lower side) than each first reflecting surface portion 32. Specifically, each of the first cover portions 34 extends slightly downward from the lower edge of each first reflecting surface portion 32 toward the front of the lamp, and extends horizontally in the left-right direction. A rear region 34B extending horizontally from the vicinity of the lower edge of the reflecting surface 32 toward the rear of the lamp.
  • each first cover portion 34 In the front area 34 ⁇ / b> A of each first cover portion 34, the light emitted from each first light emitting element 22 is incident on each first reflection surface portion 32, and the first light transmitting portion for shielding the other light. 34Aa is formed.
  • Each first light transmitting portion 34 ⁇ / b> Aa is formed as an opening extending in a substantially arc shape along the lower end edge of each first reflecting surface portion 32.
  • the front regions 34A of the pair of left and right first cover portions 34 are formed so as to be flush with each other and extend in the left-right direction, and the front end surfaces thereof are located in the vicinity of the inner surface of the translucent cover 14.
  • the second reflector 40 includes a second reflecting surface portion 42 and a second cover portion 44.
  • the second reflecting surface portion 42 is disposed so as to be positioned below the second light emitting element 24.
  • the second reflecting surface portion 42 includes a plurality of reflecting elements 42s.
  • the second reflecting surface portion 42 reflects the emitted light from the second light emitting element 24 as light that broadly expands in the left-right direction and slightly expands in the up-down direction by the plurality of reflecting elements 42s. As a result, a high beam additional light distribution pattern is formed.
  • the high beam additional light distribution pattern is added to the low beam light distribution pattern formed by the reflected light from the first reflector 30 to form a high beam light distribution pattern.
  • the second cover portion 44 is disposed so as to cover the substrate 50 at a position closer to the substrate 50 (that is, the upper side) than the second reflecting surface portion 42.
  • the second cover portion 44 includes a front region 44A that extends slightly upward from the upper edge of the second reflecting surface portion 42 toward the front of the lamp and extends horizontally in the left-right direction, and each first reflecting surface portion.
  • a rear region 44B extending horizontally from the vicinity of the upper end edge of 32 toward the rear of the lamp.
  • a second light transmitting portion 44Aa is formed for allowing the outgoing light from the second light emitting element 24 to enter the second reflecting surface portion 42 while blocking the other light.
  • the second light transmitting portion 44Aa is formed as an opening extending in a substantially arc shape along the upper end edge of the second reflecting surface portion.
  • the front region 44A of the second cover portion 44 is formed so that its front end surface is positioned substantially directly behind both front end surfaces in the vicinity below the pair of left and right first cover portions 34.
  • the lamp unit 20 of the present embodiment has a configuration in which the substrate 50 is sandwiched from both the upper and lower sides by the pair of left and right first cover portions 34 of the first reflector 30 and the second cover portion 44 of the second reflector 40. It has become.
  • FIG. 6 is a perspective view showing the first reflector 30 as viewed obliquely from the lower front.
  • the pair of left and right first cover portions 34 in the first reflector 30 face each other in a state in which the rear region 34B is raised with respect to the rear end portion of the front region 34A. It is formed in one horizontal plate shape, and a flange portion 34Ba that is bent in a direction directly below is formed at the rear edge portion and the left and right side edge portions.
  • bosses 34Bc projecting downward are formed at three locations of the substantially central portion and the left and right rear corner portions, respectively. Further, in the rear region 34B, positioning pins 34Bd projecting downward are respectively provided at two positions located on the inner side in the left-right direction with respect to the pair of left and right bosses 34Bc formed on the left and right rear corner portions. Is formed.
  • lances 34Ab for lance engagement are formed on the lower surface of the front region 34A of the pair of left and right first covers 34 in the first reflector 30, respectively.
  • Each lance 34Ab projects downward along a vertical plane extending in the front-rear direction of the lamp, and its tip engaging portion is formed to be opposite to each other between the pair of left and right lances 34Ab.
  • the second cover portion 44 of the second reflector 40 has a rear region 44B extending from the rear end portion of the front region 44A in a plate shape along the horizontal plane.
  • a flange portion 44 ⁇ / b> Ba that is bent in a direction directly above is formed at the rear edge portion and the left and right side edge portions.
  • boss engaging portions 44Bc and screw insertion holes 44Be that are engaged with the tip portions of the bosses 34Bc are formed at positions corresponding to the bosses 34Bc of the rear region 34B.
  • positioning pin insertion holes 44Bd through which the positioning pins 34Bd are inserted are formed at positions corresponding to the positioning pins 34Bd in the rear region 34B.
  • a plurality of beads 44Bf having the same height as the flange portion 44Ba are formed in the rear region 44B.
  • lance engagement holes 44Ab that engage with the lances 34Ab are formed at positions corresponding to the lances 34Ab in the front region 34A.
  • the substrate 50 is formed with boss insertion holes 50c through which the tip ends of the bosses 34Bc are inserted at positions corresponding to the bosses 34Bc of the rear region 34B, and the positioning pins 34Bd of the rear region 34B. Positioning pin insertion holes 50d through which the positioning pins 34Bd are inserted are respectively formed at positions corresponding to. Further, the substrate 50 is formed with lance insertion holes 50e through which the lances 34Ab are inserted at positions corresponding to the lances 34Ab of the front region 34A.
  • the substrate 50 is clamped by pressing the pair of left and right first cover portions 34 of the first reflector 30 against the upper surface 50a of the substrate 50 and pressing the second cover portion 44 of the second reflector 40 against the upper surface 50a of the substrate 50.
  • the screw 60 is inserted into the bosses 34Bc arranged at three positions of the first reflector 30 from below and tightened.
  • each lance 34Ab of the first reflector 30 is engaged with the second cover portion 44 via each lance insertion hole 50e of the substrate 50 and each lance engagement hole 44Ab of the second reflector 40.
  • the lance engagement between the first reflector 30 and the second reflector 40 is performed.
  • the screw 60 is inserted into the boss 34Bc through the screw insertion hole 44Be in a state in which the tip end portion of each boss 34Bc of the first reflector 30 is fitted into each boss engaging portion 44Bc of the second reflector 40. Is done by.
  • the flange portions 34Ba and 44Ba of the first and second reflectors 30 and 40 are located on the front side of the lamp with respect to the lighting control component 52 mounted on the upper surface 50a in a state where the substrate 50 is sandwiched.
  • the first reflector 30 has a heat radiating opening 34 ⁇ / b> Bg for releasing the heat generated in the second light emitting element 24 to the space above the first reflector 30 in the rear region 34 ⁇ / b> B of the pair of left and right first cover portions 34. Is formed.
  • the heat radiation opening 34Bg is formed at a connection position between the pair of left and right first reflecting surface portions 32 in the pair of left and right rear regions 34B so as to be located immediately above the second light emitting element 24.
  • the vehicular lamp 10 reflects light emitted from the first and second light emitting elements 22 and 24 mounted on both surfaces of the substrate 50 toward the front of the lamp by the first and second reflectors 30 and 40.
  • the first cover 30 is disposed on the substrate 50 side of the first reflector 30 with respect to the first reflecting surface portion 32, and the first cover portion 34 has a first cover 34.
  • a first light transmitting part 34 ⁇ / b> Aa for allowing the light emitted from the light emitting element 22 to enter the first reflecting surface part 32 is formed.
  • a second cover portion 44 that covers the substrate 50 is arranged on the substrate 50 side of the second reflector 40 with respect to the second reflecting surface portion 42, and the second cover portion 44 has an output from the second light emitting element 24.
  • a second light transmitting part 44Aa for allowing incident light to enter the second reflecting surface part 42 is formed. For this reason, it is possible to effectively suppress the generation of stray light such as glare light due to the light emitted from the first and second light emitting elements 22 and 24.
  • the substrate 50 is sandwiched by the first cover part 34 and the second cover part 44 from both sides, the number of parts can be minimized and the generation of stray light can be suppressed.
  • the emitted light from the first and second light emitting elements 22 and 24 mounted on both surfaces of the substrate 50 is reflected toward the front of the lamp by the first and second reflectors 30 and 40.
  • the vehicular lamp 10 configured as described above it is possible to suppress generation of stray light from the first and second light emitting elements 22 and 24 without increasing the number of parts.
  • the sandwiching structure of the substrate 50 can be simplified. Assembling can be easily performed.
  • this lance engagement is more forward of the lamp than the connection position between the first cover portion 34 and the first reflection surface portion 32 and the connection position between the second cover portion 44 and the second reflection surface portion 42. Since it is performed at the position, the following effects can be obtained.
  • the sandwiching structure of the substrate 50 is preferable from the viewpoint of not affecting the light distribution performance of the vehicular lamp 10 to be provided at a position on the rear side of the lamp relative to the connection positions. From the viewpoint of securely holding the substrate, it is preferable to position the substrate 50 at a position on the front side of the lamp rather than the above connection positions. In that respect, since the lance engagement can be performed with almost no adverse effect on the light distribution performance of the vehicular lamp 10, by performing this at a position on the front side of the lamp with respect to each of the connection positions described above, It is possible to hold the substrate 50 in a state in which the substrate 50 is positioned at a plurality of positions on both the front and rear sides of each connection position without adversely affecting the light distribution performance of the lamp 10.
  • this lance engagement is such that the tip engagement portion of each lance 34Ab extending along the vertical plane extending in the longitudinal direction of the lamp is directed downward from each lance engagement hole 44Ab formed in the front region 44A of the second cover portion 44. Therefore, when the interior of the lamp chamber is observed through the translucent cover 14 from the front of the lamp, the presence of the lamp can be made inconspicuous.
  • the substrate 50 is disposed with the surface on which the first light emitting element 22 is mounted facing upward, and the first reflector 30 is disposed above the substrate 50.
  • the heat radiation opening 34Bg is formed in the first reflector 30, the heat generated by the lighting of the second light emitting element 24 is transferred to the first reflector 30 through the heat radiation opening 34Bg. It can escape to the space above.
  • the two first light emitting elements 22 are arranged in the left-right direction, and the first reflector 30 has the first reflecting surface portion 32 and the first cover portion 34 in the left-right direction.
  • the two are arranged in a line.
  • the two first cover portions 34 are formed so as to extend further to the lamp rear side than the two first reflecting surface portions 32.
  • the heat radiation opening 34Bg is formed at a connection position between the two first reflection surface portions 32 on the rear side of the lamp with respect to the two first reflection surface portions 32. For this reason, heat radiation can be achieved without impairing the light distribution function of each first reflector 30.
  • the heat radiation opening 34Bg is formed so as to be located immediately above the second light emitting element 24, so that the heat radiation function can be maximized.
  • the vehicular lamp 10 is a motorcycle headlamp.
  • the vehicular lamp 10 is a vehicular lamp other than this, by adopting the same configuration as the above embodiment, It is possible to obtain the same effect as the embodiment.
  • FIG. 7 is a view similar to FIG. 2 showing the vehicular lamp 110 according to this modification.
  • the basic configuration of the vehicular lamp 110 is the same as that of the vehicular lamp 10 according to the above embodiment, but the configuration of the first and second reflectors 130 and 140 in the lamp unit 120 is the same. This is partly different from the above embodiment.
  • each of the first and second reflectors 130 and 140 of the present modification is made of a transparent member, and the front surface thereof is subjected to a mirror surface treatment such as aluminum deposition.
  • the second reflector 140 of the present modification also includes a second reflecting surface portion 142 and a second cover portion 144, like the second reflector 40 of the above embodiment.
  • a second light transmitting portion 144Aa is formed in the front region 144A of the second cover portion 144 to allow the light emitted from the second light emitting element 24 to enter the second reflecting surface portion 142 and to block other light.
  • the second light transmitting portion 144Aa is configured as a through portion by not applying a mirror surface treatment to a part of the surface of the front region 144A.
  • the second light transmitting portion 144Aa is formed so as to extend in a substantially arc shape along the upper end edge of the second reflecting surface portion 142, like the second light transmitting portion 44Aa of the above embodiment.
  • the first reflector 130 of the present modification also includes a pair of left and right first reflecting surface portions 132 and a first cover portion 134, similar to the first reflector 30 of the above embodiment.
  • the first light transmitting element for blocking the other light while allowing the outgoing light from the first light emitting element (not shown) to enter the first reflecting surface portion 132.
  • An optical part (not shown) is formed.
  • the first light transmitting portion is configured as a transparent portion similar to the second light transmitting portion 144Aa.
  • a heat radiation opening 134Bg similar to the heat radiation opening 34Bg of the above embodiment is formed in the rear region 134B of the pair of left and right first cover portions 134. ing.
  • FIG. 8 is a view similar to FIG. 4 showing the lamp unit 220 of the vehicular lamp according to this modification in an exploded manner.
  • the basic structure of the lamp unit 220 is the same as that of the lamp unit 20 of the above embodiment, but the lance engagement structure is different from that of the above embodiment.
  • lances 234Ab are formed on the lower surface of the front region 234A of the pair of left and right first cover portions 234 in the first reflector 230, respectively.
  • Each lance 234Ab projects downward along a vertical plane extending in the front-rear direction of the lamp in the same manner as each lance 34Ab in the above-described embodiment, and its tip engaging portion is opposite to each other between the pair of left and right lances 234Ab. It is formed to face.
  • a pair of left and right lances 244Ab are formed on the upper surface of the front region 244A of the second cover portion 244 in the second reflector 240.
  • Each lance 244Ab protrudes upward along a vertical plane extending in the front-rear direction of the lamp, and its tip engaging portion is formed to be opposite to each other between the pair of left and right lances 244Ab.
  • the pair of left and right lances 244Ab are formed at positions shifted inward in the left-right direction with respect to the pair of left and right lances 234Ab.
  • the basic configuration of the substrate 250 is the same as that of the substrate 50 of the above embodiment, but the lance engagement hole that engages the lance 234Ab at a position corresponding to the pair of left and right lances 234Ab. 250f is formed, and a lance engagement hole 250g for engaging with the lance 244Ab is formed at a position corresponding to the pair of left and right lances 244Ab.
  • substrate 250 of this modification is not formed with what corresponds to the pair of left and right lance insertion holes 50e formed in the board 50 of the above embodiment. Further, in the front region 244A of the second cover portion 244 in the second reflector 240 of this modification, a portion corresponding to the lance engagement hole 44Ab formed in the front region 44A of the above embodiment is formed. Absent.
  • the pair of left and right lances 234Ab and the pair of left and right lances 244Ab are made completely invisible from the front side of the lamp when the assembly of the lamp unit 220 is completed. Can do.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

After a first cover part (34) covering a substrate (50) is disposed closer to the substrate (50) than a first reflection surface part (32) of a first reflector (30), a first light transmission part (34Aa) is formed on the first cover part (34). After a second cover part (44) covering the substrate (50) is disposed closer to the substrate (50) than a second reflection surface part (42) of a second reflector (40), a second light transmission part (44Aa) is formed on the second cover part (44). The substrate (50) is configured to be secured from both surface sides thereof by the first cover part (34) and the second cover part (44). Consequently, it becomes possible to minimize the number of components, and suppress occurrence of stray light.

Description

車両用灯具Vehicle lighting
　本開示は、基板の両面に搭載された第１および第２発光素子からの出射光を第１および第２リフレクタによって灯具前方へ向けて反射させるように構成された車両用灯具に関するものである。 The present disclosure relates to a vehicular lamp configured to reflect light emitted from first and second light emitting elements mounted on both surfaces of a substrate toward the front of the lamp by first and second reflectors.
　従来より、第１および第２発光素子からの出射光を第１および第２リフレクタによって灯具前方へ向けて反射させるように構成された車両用灯具が知られている。 Conventionally, there is known a vehicular lamp configured to reflect light emitted from first and second light-emitting elements toward the front of the lamp by first and second reflectors.
　「特許文献１」には、このような車両用灯具において、第１および第２発光素子が基板の上下両面に搭載された構成が記載されている。 “Patent Document 1” describes a configuration in which the first and second light emitting elements are mounted on both upper and lower surfaces of a substrate in such a vehicle lamp.
日本国特開２０１６－１０５３７２号公報Japanese Unexamined Patent Publication No. 2016-105372
　このような車両用灯具においては、第１および第２発光素子からの出射光によってグレア光やその原因となる迷光が発生してしまわないようにすることが望まれる。 In such a vehicular lamp, it is desired that glare light and stray light causing it are not generated by light emitted from the first and second light emitting elements.
　上記「特許文献１」に記載された車両用灯具においては、基板の上面に搭載された第１発光素子から灯具前方へ向けて出射する直射光を遮光するためのシェードが基板の上面に取り付けられており、これによりグレア光の発生を防止する構成となっているが、このような機能をできるだけ部品点数を増やすことなく実現することが望まれる。 In the vehicle lamp described in “Patent Document 1”, a shade for shielding direct light emitted from the first light emitting element mounted on the upper surface of the substrate toward the front of the lamp is attached to the upper surface of the substrate. Thus, it is configured to prevent the generation of glare light, but it is desired to realize such a function without increasing the number of components as much as possible.
　本開示は、このような事情に鑑みてなされたものであって、基板の両面に搭載された第１および第２発光素子からの出射光を第１および第２リフレクタによって灯具前方へ向けて反射させるように構成された車両用灯具において、部品点数を増やすことなく第１および第２発光素子からの迷光の発生を抑制することができる車両用灯具を提供することを目的とするものである。 The present disclosure has been made in view of such circumstances, and reflects light emitted from the first and second light-emitting elements mounted on both surfaces of the substrate toward the front of the lamp by the first and second reflectors. An object of the present invention is to provide a vehicular lamp that can suppress the occurrence of stray light from the first and second light emitting elements without increasing the number of components.
　本開示は、第１および第２リフレクタの構成に工夫を施すことにより、上記目的達成を図るようにしたものである。 The present disclosure is intended to achieve the above-described object by devising the configurations of the first and second reflectors.
　すなわち、本開示に係る車両用灯具は、
　一方の面に第１発光素子が搭載されるとともに他方の面に第２発光素子が搭載された基板と、前記第１発光素子からの出射光を灯具前方へ向けて反射させる第１リフレクタと、前記第２発光素子からの出射光を灯具前方へ向けて反射させる第２リフレクタと、を備えた車両用灯具において、
　前記第１リフレクタは、前記第１発光素子からの出射光を反射させるための第１反射面部と、この第１反射面部よりも前記基板側の位置において該基板を覆うように配置された第１カバー部とを備えており、
　前記第２リフレクタは、前記第２発光素子からの出射光を反射させるための第２反射面部と、この第２反射面部よりも前記基板側の位置において該基板を覆うように配置された第２カバー部とを備えており、
　前記第１カバー部に、前記第１発光素子からの出射光を前記第１反射面部に入射させるための第１透光部が形成されており、
　前記第２カバー部に、前記第２発光素子からの出射光を前記第２反射面部に入射させるための第２透光部が形成されており、
　前記基板は、前記第１カバー部と前記第２カバー部とによって該基板の両面側から挟持されている。 That is, the vehicular lamp according to the present disclosure is
A substrate having the first light emitting element mounted on one surface and the second light emitting element mounted on the other surface; a first reflector for reflecting the emitted light from the first light emitting element toward the front of the lamp; A vehicle lamp comprising: a second reflector that reflects the emitted light from the second light emitting element toward the front of the lamp;
The first reflector has a first reflection surface portion for reflecting light emitted from the first light emitting element, and a first reflector disposed so as to cover the substrate at a position closer to the substrate than the first reflection surface portion. And a cover part,
The second reflector is a second reflecting surface portion for reflecting the emitted light from the second light emitting element, and a second reflecting surface that covers the substrate at a position closer to the substrate than the second reflecting surface portion. And a cover part,
The first cover part is formed with a first light transmitting part for allowing the light emitted from the first light emitting element to enter the first reflecting surface part,
The second cover part is formed with a second light transmitting part for making the emitted light from the second light emitting element incident on the second reflecting surface part,
The substrate is sandwiched from both sides of the substrate by the first cover portion and the second cover portion.
　上記「第１リフレクタ」および「第２リフレクタ」ならびに「基板」の具体的な配置は特に限定されるものではない。 The specific arrangement of the “first reflector”, the “second reflector”, and the “substrate” is not particularly limited.
　上記「第１カバー部」および「第２カバー部」は、基板の全領域を覆うように配置されていてもよいし、基板の一部領域を覆うように配置されていてもよい。 The “first cover part” and the “second cover part” may be disposed so as to cover the entire area of the substrate, or may be disposed so as to cover a partial area of the substrate.
　上記「第１透光部」および「第２透光部」は、第１および第２発光素子の各々からの出射光を第１および第２反射面部の各々に入射させるように構成されていれば、その具体的な構成は特に限定されるものではなく、例えば貫通孔やスリット等の開口部あるいは透明窓等で構成されたものとすることが可能である。 The “first translucent portion” and the “second translucent portion” are configured so that light emitted from each of the first and second light emitting elements is incident on each of the first and second reflective surface portions. For example, the specific configuration is not particularly limited, and may be configured by, for example, an opening such as a through hole or a slit or a transparent window.
　上記基板をその両面側から「挟持」するための具体的な構成は特に限定されるものではなく、例えばネジ締めやランス係合あるいは接着等によって行う構成とすることが可能である。 The specific configuration for “clamping” the substrate from both sides thereof is not particularly limited, and may be configured to be performed, for example, by screw tightening, lance engagement, or adhesion.
　本開示に係る車両用灯具は、基板の両面に搭載された第１および第２発光素子からの出射光を第１および第２リフレクタによって灯具前方へ向けて反射させる構成となっているが、第１リフレクタにおける第１反射面部よりも基板側には該基板を覆う第１カバー部が配置されるとともに該第１カバー部には第１発光素子からの出射光を第１反射面部に入射させるための第１透光部が形成されている。また、第２リフレクタにおける第２反射面部よりも基板側には該基板を覆う第２カバー部が配置されるとともに該第２カバー部には第２発光素子からの出射光を第２反射面部に入射させるための第２透光部が形成されている。このため、第１および第２発光素子からの出射光によってグレア光等の迷光が発生してしまうのを効果的に抑制することができる。 The vehicular lamp according to the present disclosure is configured to reflect the emitted light from the first and second light emitting elements mounted on both surfaces of the substrate toward the front of the lamp by the first and second reflectors. A first cover portion that covers the substrate is disposed on the substrate side of the first reflector with respect to the first reflector, and light emitted from the first light emitting element is incident on the first reflection surface portion on the first cover portion. The 1st translucent part of this is formed. In addition, a second cover portion that covers the substrate is disposed closer to the substrate than the second reflection surface portion of the second reflector, and light emitted from the second light emitting element is input to the second reflection surface portion on the second cover portion. A second light transmissive portion for incidence is formed. For this reason, it is possible to effectively suppress generation of stray light such as glare light due to light emitted from the first and second light emitting elements.
　その上で、基板は第１カバー部と第２カバー部とによってその両面側から挟持されているので、部品点数を最小限に抑えた上で迷光の発生を抑制することができる。 In addition, since the substrate is sandwiched between the first cover portion and the second cover portion from both sides, the number of parts can be minimized and the generation of stray light can be suppressed.
　このように本開示によれば、基板の両面に搭載された第１および第２発光素子からの出射光を第１および第２リフレクタによって灯具前方へ向けて反射させるように構成された車両用灯具において、部品点数を増やすことなく第１および第２発光素子からの迷光の発生を抑制することができる。 As described above, according to the present disclosure, the vehicular lamp configured to reflect the emitted light from the first and second light emitting elements mounted on both surfaces of the substrate toward the front of the lamp by the first and second reflectors. , The generation of stray light from the first and second light emitting elements can be suppressed without increasing the number of components.
　上記構成において、第１カバー部と第２カバー部とがランス係合された構成とすれば、基板の挟持構造を簡素化することができ、これにより車両用灯具の組付けを容易に行うことが可能となる。 In the above configuration, if the first cover portion and the second cover portion are configured to be lance-engaged, the substrate holding structure can be simplified, thereby facilitating the assembly of the vehicle lamp. Is possible.
　このランス係合は、第１カバー部と第２カバー部との間で直接行われる構成となっていてもよいし、第１カバー部と基板との間および第２カバー部と基板との間でそれぞれ行われる構成となっていてもよい。 The lance engagement may be performed directly between the first cover portion and the second cover portion, or between the first cover portion and the substrate and between the second cover portion and the substrate. It may be configured to be performed respectively.
　その際、このランス係合が、第１カバー部と第１反射面部との接続位置および第２カバー部と第２反射面部との接続位置よりも灯具前方側の位置において行われる構成とすれば、次のような作用効果を得ることができる。 At this time, if the lance engagement is performed at a position on the front side of the lamp with respect to the connection position between the first cover portion and the first reflection surface portion and the connection position between the second cover portion and the second reflection surface portion. The following effects can be obtained.
　すなわち、基板の挟持構造は、上記各接続位置よりも灯具後方側の位置に設けることが車両用灯具の配光性能に影響を及ぼさないようにするという観点からは好ましいが、基板を確実に挟持するという観点からは上記各接続位置よりも灯具前方側の位置においても基板を位置決めしておくことが好ましい。その点、ランス係合は車両用灯具の配光性能にほとんど悪影響を及ぼすことなく行うことが可能であるので、これを上記各接続位置よりも灯具前方側の位置において行うことにより、車両用灯具の配光性能にほとんど悪影響を及ぼすことなく上記各接続位置の前後両側の複数箇所において基板を位置決めした状態でその挟持を行うことができる。 That is, it is preferable to provide the board clamping structure at a position on the rear side of the lamp relative to each of the connection positions from the viewpoint of not affecting the light distribution performance of the vehicle lamp, but the board is securely clamped. In view of the above, it is preferable to position the substrate also at a position on the front side of the lamp with respect to the connection positions. In that respect, since the lance engagement can be performed with almost no adverse effect on the light distribution performance of the vehicular lamp, the vehicular lamp can be obtained by performing this at a position on the front side of the lamp relative to the connection positions. The substrate can be held in a state where the substrate is positioned at a plurality of positions on both the front and rear sides of each connection position without adversely affecting the light distribution performance.
　上記構成において、基板がその第１発光素子を搭載している面を上向きにした状態で配置された構成とするとともに、この基板の上方側に第１リフレクタが配置された構成とした上で、この第１リフレクタに放熱用開口部が形成された構成とすれば、第２発光素子の点灯によって発生する熱を、放熱用開口部を介して第１リフレクタの上方空間へ逃がすことができる。 In the above configuration, the substrate is arranged with the surface on which the first light emitting element is mounted facing upward, and the first reflector is arranged on the upper side of the substrate. If the first reflector has a heat dissipation opening, heat generated by lighting the second light emitting element can be released to the space above the first reflector through the heat dissipation opening.
　その際、第１発光素子が左右方向に２つ並んだ状態で配置されるとともに、第１リフレクタが、その第１反射面部および第１カバー部が左右方向に２つ並んだ状態で配置されており、かつ、２つの第１カバー部が２つの第１反射面部よりも灯具後方側まで延びるように形成された構成となっている場合には、放熱用開口部として、２つの第１反射面部よりも灯具後方側における２つの第１反射面部相互の接続位置に形成された構成とすれば、各第１リフレクタの配光機能を損なうことなく放熱を図ることができる。 At that time, the first light emitting elements are arranged in a state where two first light emitting elements are arranged in the left-right direction, and the first reflector is arranged in a state where the first reflecting surface portion and the first cover portion are arranged in the left-right direction. And when the two first cover portions are formed to extend to the rear side of the lamp rather than the two first reflecting surface portions, the two first reflecting surface portions are used as heat radiation openings. If it is set as the structure formed in the connection position of two 1st reflective surface parts rather than a lamp | ramp rear side, heat radiation can be aimed at without impairing the light distribution function of each 1st reflector.
本開示の一実施形態に係る車両用灯具を示す正面図Front view showing a vehicular lamp according to an embodiment of the present disclosure 図１のII－II線断面図II-II sectional view of FIG. 図１のIII－III線断面図Sectional view along line III-III in Fig. 1 上記車両用灯具の灯具ユニットを主要構成要素に分解して示す正面図The front view which decomposes | disassembles into the main component and shows the lamp unit of the said vehicle lamp 上記灯具ユニットを主要構成要素に分解して示す背面図Rear view showing the lamp unit exploded into main components 上記灯具ユニットの第１リフレクタを斜め下前方から見て示す斜視図The perspective view which shows the 1st reflector of the said lamp unit seeing from diagonally lower front 上記実施形態の第１変形例を示す、図２と同様の図The same figure as FIG. 2 which shows the 1st modification of the said embodiment. 上記実施形態の第２変形例を示す、図４と同様の図The figure similar to FIG. 4 which shows the 2nd modification of the said embodiment.
　以下、図面を用いて、本開示の実施の形態について説明する。 Hereinafter, embodiments of the present disclosure will be described with reference to the drawings.
　図１は、本開示の一実施形態に係る車両用灯具１０を示す正面図である。また、図２は図１のII－II線断面図であり、図３は図１のIII－III線断面図である。 FIG. 1 is a front view showing a vehicular lamp 10 according to an embodiment of the present disclosure. 2 is a cross-sectional view taken along line II-II in FIG. 1, and FIG. 3 is a cross-sectional view taken along line III-III in FIG.
　これらの図において、Ｘで示す方向が灯具としての「前方」（車両としても「前方」）である。Ｙで示す方向が「前方」と直交する「左方向」（車両としても「左方向」であるが灯具正面視では「右方向」）である。Ｚで示す方向が「上方向」である。これら以外の図においても同様である。 In these figures, the direction indicated by X is “front” as a lamp (“front” as a vehicle). The direction indicated by Y is the “left direction” orthogonal to “front” (“left direction” as a vehicle, but “right direction” in front view of the lamp). The direction indicated by Z is “upward”. The same applies to other figures.
　これらの図に示すように、本実施形態に係る車両用灯具１０は二輪車用ヘッドランプであって、ランプボディ１２とこのランプボディ１２の前端開口部に取り付けられた素通し状の透光カバー１４とで形成される灯室内に灯具ユニット２０が組み込まれた構成となっている。この灯具ユニット２０は、図示しないエイミング機構を介してランプボディ１２に支持されている。 As shown in these drawings, the vehicular lamp 10 according to this embodiment is a two-wheeled vehicle headlamp, and includes a lamp body 12 and a transparent translucent cover 14 attached to a front end opening of the lamp body 12. The lamp unit 20 is incorporated in the lamp chamber formed by The lamp unit 20 is supported by the lamp body 12 through an aiming mechanism (not shown).
　図４は、灯具ユニット２０を主要構成要素に分解して示す正面図であり、図５は、その背面図である。 FIG. 4 is a front view showing the lamp unit 20 disassembled into main components, and FIG. 5 is a rear view thereof.
　これらの図にも示すように、灯具ユニット２０は、上面５０ａに第１発光素子２２が搭載されるとともに下面５０ｂに第２発光素子２４が搭載された基板５０と、第１発光素子２２からの出射光を灯具前方へ向けて反射させる第１リフレクタ３０と、第２発光素子２４からの出射光を灯具前方へ向けて反射させる第２リフレクタ４０とを備えている。 As shown in these drawings, the lamp unit 20 includes a substrate 50 on which the first light emitting element 22 is mounted on the upper surface 50 a and the second light emitting element 24 on the lower surface 50 b, and the first light emitting element 22. A first reflector 30 that reflects outgoing light toward the front of the lamp and a second reflector 40 that reflects outgoing light from the second light emitting element 24 toward the front of the lamp are provided.
　第１発光素子２２は、左右方向に所定の間隔をおいて２つ並んだ状態で配置されている。第２発光素子２４は、２つの第１発光素子２２よりも灯具前方側においてその左右方向の中心位置に配置されている。 The first light emitting elements 22 are arranged in a state in which two first light emitting elements 22 are arranged at a predetermined interval in the left-right direction. The second light emitting element 24 is disposed at the center position in the left-right direction on the front side of the lamp relative to the two first light emitting elements 22.
　各第１発光素子２２および第２発光素子２４は、いずれも白色発光ダイオードである。各第１発光素子２２はその発光面を真上の方向へ向けて配置されている。第２発光素子２４はその発光面を真下の方向へ向けて配置されている。 Each of the first light emitting element 22 and the second light emitting element 24 is a white light emitting diode. Each of the first light emitting elements 22 is arranged with its light emitting surface facing upward. The second light emitting element 24 is arranged with its light emitting surface facing in a direction directly below.
　基板５０の上面５０ａの後部領域には、第１および第２発光素子２２、２４の点灯制御を行うための点灯制御部品（例えば抵抗やサーミスタ等）５２が搭載されている。 A lighting control component (for example, a resistor or a thermistor) 52 for controlling the lighting of the first and second light emitting elements 22 and 24 is mounted on the rear region of the upper surface 50a of the substrate 50.
　第１リフレクタ３０は基板５０の上方側に配置されており、第２リフレクタ４０は基板５０の下方側に配置されている。これら第１および第２リフレクタ３０、４０は、いずれも左右対称の形状を有しており、その前面にはアルミニウム蒸着等による鏡面処理が施されている。 The first reflector 30 is disposed on the upper side of the substrate 50, and the second reflector 40 is disposed on the lower side of the substrate 50. Each of the first and second reflectors 30 and 40 has a bilaterally symmetric shape, and a mirror surface treatment such as aluminum deposition is performed on the front surface thereof.
　第１リフレクタ３０は、左右１対の第１反射面部３２および第１カバー部３４を備えている。 The first reflector 30 includes a pair of left and right first reflecting surface portions 32 and a first cover portion 34.
　各第１反射面部３２は、各第１発光素子２２の上方に位置するように配置されている。各第１反射面部３２は、複数の反射素子３２ｓを備えている。各第１反射面部３２は、これら複数の反射素子３２ｓによって各第１発光素子２２からの出射光をやや下向きで左右方向に大きく拡がる光として反射させる。そして、これら左右１対の第１反射面部３２からの反射光によって、ロービーム用配光パターンが形成される。 Each first reflection surface portion 32 is disposed so as to be located above each first light emitting element 22. Each first reflective surface portion 32 includes a plurality of reflective elements 32s. Each first reflection surface portion 32 reflects the emitted light from each first light emitting element 22 as light that spreads slightly in the left-right direction slightly downward by the plurality of reflection elements 32 s. A low beam light distribution pattern is formed by the reflected light from the pair of left and right first reflecting surface portions 32.
　各第１カバー部３４は、各第１反射面部３２よりも基板５０側（すなわち下方側）の位置において基板５０を覆うように配置されている。具体的には、各第１カバー部３４は、各第１反射面部３２の下端縁部から灯具前方へ向けてやや下向きに延びるとともに、左右方向に水平に延びる前部領域３４Ａと、各第１反射面部３２の下端縁部近傍から灯具後方へ向けて水平に延びる後部領域３４Ｂとを備えている。 Each first cover portion 34 is arranged so as to cover the substrate 50 at a position closer to the substrate 50 (that is, the lower side) than each first reflecting surface portion 32. Specifically, each of the first cover portions 34 extends slightly downward from the lower edge of each first reflecting surface portion 32 toward the front of the lamp, and extends horizontally in the left-right direction. A rear region 34B extending horizontally from the vicinity of the lower edge of the reflecting surface 32 toward the rear of the lamp.
　各第１カバー部３４の前部領域３４Ａには、各第１発光素子２２からの出射光を各第１反射面部３２に入射させる一方、それ以外の光を遮光するための第１透光部３４Ａａが形成されている。各第１透光部３４Ａａは、各第１反射面部３２の下端縁に沿って略円弧状に延びる開口部として形成されている。 In the front area 34 </ b> A of each first cover portion 34, the light emitted from each first light emitting element 22 is incident on each first reflection surface portion 32, and the first light transmitting portion for shielding the other light. 34Aa is formed. Each first light transmitting portion 34 </ b> Aa is formed as an opening extending in a substantially arc shape along the lower end edge of each first reflecting surface portion 32.
　左右１対の第１カバー部３４の前部領域３４Ａは、互いに面一で左右方向に延びるように形成されており、その前端面は透光カバー１４の内面近傍に位置している。 The front regions 34A of the pair of left and right first cover portions 34 are formed so as to be flush with each other and extend in the left-right direction, and the front end surfaces thereof are located in the vicinity of the inner surface of the translucent cover 14.
　一方、第２リフレクタ４０は、第２反射面部４２と第２カバー部４４とを備えている。 On the other hand, the second reflector 40 includes a second reflecting surface portion 42 and a second cover portion 44.
　第２反射面部４２は、第２発光素子２４の下方に位置するように配置されている。この第２反射面部４２は、複数の反射素子４２ｓを備えている。第２反射面部４２は、これら複数の反射素子４２ｓによって第２発光素子２４からの出射光を、左右方向に大きく拡がるとともに上下方向に僅かに拡がる光として反射させる。これによりハイビーム用付加配光パターンが形成される。そして、このハイビーム用付加配光パターンを第１リフレクタ３０からの反射光によって形成されるロービーム用配光パターンに付加することによってハイビーム用配光パターンを形成する。 The second reflecting surface portion 42 is disposed so as to be positioned below the second light emitting element 24. The second reflecting surface portion 42 includes a plurality of reflecting elements 42s. The second reflecting surface portion 42 reflects the emitted light from the second light emitting element 24 as light that broadly expands in the left-right direction and slightly expands in the up-down direction by the plurality of reflecting elements 42s. As a result, a high beam additional light distribution pattern is formed. The high beam additional light distribution pattern is added to the low beam light distribution pattern formed by the reflected light from the first reflector 30 to form a high beam light distribution pattern.
　第２カバー部４４は、第２反射面部４２よりも基板５０側（すなわち上方側）の位置において基板５０を覆うように配置されている。具体的には、この第２カバー部４４は、第２反射面部４２の上端縁部から灯具前方へ向けてやや上向きに延びるとともに左右方向に水平に延びる前部領域４４Ａと、各第１反射面部３２の上端縁部近傍から灯具後方へ向けて水平に延びる後部領域４４Ｂとを備えている。 The second cover portion 44 is disposed so as to cover the substrate 50 at a position closer to the substrate 50 (that is, the upper side) than the second reflecting surface portion 42. Specifically, the second cover portion 44 includes a front region 44A that extends slightly upward from the upper edge of the second reflecting surface portion 42 toward the front of the lamp and extends horizontally in the left-right direction, and each first reflecting surface portion. A rear region 44B extending horizontally from the vicinity of the upper end edge of 32 toward the rear of the lamp.
　この第２カバー部４４の前部領域４４Ａには、第２発光素子２４からの出射光を第２反射面部４２に入射させる一方それ以外の光を遮光するための第２透光部４４Ａａが形成されている。この第２透光部４４Ａａは、第２反射面部４２の上端縁に沿って略円弧状に延びる開口部として形成されている。 In the front region 44A of the second cover portion 44, a second light transmitting portion 44Aa is formed for allowing the outgoing light from the second light emitting element 24 to enter the second reflecting surface portion 42 while blocking the other light. Has been. The second light transmitting portion 44Aa is formed as an opening extending in a substantially arc shape along the upper end edge of the second reflecting surface portion.
　この第２カバー部４４の前部領域４４Ａは、その前端面が左右１対の第１カバー部３４の下方近傍において両者の前端面の略真後ろに位置するように形成されている。 The front region 44A of the second cover portion 44 is formed so that its front end surface is positioned substantially directly behind both front end surfaces in the vicinity below the pair of left and right first cover portions 34.
　そして、本実施形態の灯具ユニット２０は、第１リフレクタ３０の左右１対の第１カバー部３４と第２リフレクタ４０の第２カバー部４４とによって基板５０がその上下両面側から挟持された構成となっている。 The lamp unit 20 of the present embodiment has a configuration in which the substrate 50 is sandwiched from both the upper and lower sides by the pair of left and right first cover portions 34 of the first reflector 30 and the second cover portion 44 of the second reflector 40. It has become.
　以下、この基板５０を挟持するための具体的な構成について説明する。 Hereinafter, a specific configuration for sandwiching the substrate 50 will be described.
　図６は、第１リフレクタ３０を斜め下前方から見て示す斜視図である。 FIG. 6 is a perspective view showing the first reflector 30 as viewed obliquely from the lower front.
　図６に示すように、この第１リフレクタ３０における左右１対の第１カバー部３４は、その後部領域３４Ｂがその前部領域３４Ａの後端部に対して段上がりになった状態で互いに面一の水平板状に形成されており、その後端縁部および左右両側端縁部には、真下の方向に折れ曲がったフランジ部３４Ｂａが形成されている。 As shown in FIG. 6, the pair of left and right first cover portions 34 in the first reflector 30 face each other in a state in which the rear region 34B is raised with respect to the rear end portion of the front region 34A. It is formed in one horizontal plate shape, and a flange portion 34Ba that is bent in a direction directly below is formed at the rear edge portion and the left and right side edge portions.
　この後部領域３４Ｂには、その略中央部およびその左右両側の後部コーナ部の３箇所に、下方へ向けて突出するボス３４Ｂｃがそれぞれ形成されている。また、この後部領域３４Ｂには、左右両側の後部コーナ部に形成された左右１対のボス３４Ｂｃに対して左右方向の内側に位置する２箇所に、下方へ向けて突出する位置決めピン３４Ｂｄがそれぞれ形成されている。 In the rear region 34B, bosses 34Bc projecting downward are formed at three locations of the substantially central portion and the left and right rear corner portions, respectively. Further, in the rear region 34B, positioning pins 34Bd projecting downward are respectively provided at two positions located on the inner side in the left-right direction with respect to the pair of left and right bosses 34Bc formed on the left and right rear corner portions. Is formed.
　さらに、この第１リフレクタ３０における左右１対の第１カバー部３４の前部領域３４Ａの下面には、ランス係合用のランス３４Ａｂがそれぞれ形成されている。各ランス３４Ａｂは、灯具前後方向に延びる鉛直面に沿って下方に向けて突出しており、その先端係合部が左右１対のランス３４Ａｂ相互間において互いに逆向きになるように形成されている。 Furthermore, lances 34Ab for lance engagement are formed on the lower surface of the front region 34A of the pair of left and right first covers 34 in the first reflector 30, respectively. Each lance 34Ab projects downward along a vertical plane extending in the front-rear direction of the lamp, and its tip engaging portion is formed to be opposite to each other between the pair of left and right lances 34Ab.
　一方、図２、３および５に示すように、第２リフレクタ４０の第２カバー部４４は、その後部領域４４Ｂがその前部領域４４Ａの後端部から水平面に沿って板状に延びており、その後端縁部および左右両側端縁部には真上の方向に折れ曲がったフランジ部４４Ｂａが形成されている。 On the other hand, as shown in FIGS. 2, 3 and 5, the second cover portion 44 of the second reflector 40 has a rear region 44B extending from the rear end portion of the front region 44A in a plate shape along the horizontal plane. In addition, a flange portion 44 </ b> Ba that is bent in a direction directly above is formed at the rear edge portion and the left and right side edge portions.
　この後部領域４４Ｂには、後部領域３４Ｂの各ボス３４Ｂｃに対応する位置に、該ボス３４Ｂｃの先端部と係合するボス係合部４４Ｂｃとネジ挿通孔４４Ｂｅとがそれぞれ形成されている。また、この後部領域４４Ｂには、後部領域３４Ｂの各位置決めピン３４Ｂｄに対応する位置に、該位置決めピン３４Ｂｄを挿通させる位置決めピン挿通孔４４Ｂｄがそれぞれ形成されている。さらに、この後部領域４４Ｂには、フランジ部４４Ｂａと同じ高さのビード４４Ｂｆが複数本形成されている。 In the rear region 44B, boss engaging portions 44Bc and screw insertion holes 44Be that are engaged with the tip portions of the bosses 34Bc are formed at positions corresponding to the bosses 34Bc of the rear region 34B. In the rear region 44B, positioning pin insertion holes 44Bd through which the positioning pins 34Bd are inserted are formed at positions corresponding to the positioning pins 34Bd in the rear region 34B. Further, a plurality of beads 44Bf having the same height as the flange portion 44Ba are formed in the rear region 44B.
　また、第２カバー部４４の前部領域４４Ａには、前部領域３４Ａの各ランス３４Ａｂに対応する位置に、該ランス３４Ａｂとランス係合するランス係合孔４４Ａｂがそれぞれ形成されている。 Further, in the front region 44A of the second cover part 44, lance engagement holes 44Ab that engage with the lances 34Ab are formed at positions corresponding to the lances 34Ab in the front region 34A.
　そして、基板５０には、後部領域３４Ｂの各ボス３４Ｂｃに対応する位置に、該ボス３４Ｂｃの先端部を挿通させるボス挿通孔５０ｃがそれぞれ形成されており、また、後部領域３４Ｂの各位置決めピン３４Ｂｄに対応する位置に、該位置決めピン３４Ｂｄを挿通させる位置決めピン挿通孔５０ｄがそれぞれ形成されている。さらに、基板５０には、前部領域３４Ａの各ランス３４Ａｂに対応する位置に、該ランス３４Ａｂを挿通させるランス挿通孔５０ｅがそれぞれ形成されている。 The substrate 50 is formed with boss insertion holes 50c through which the tip ends of the bosses 34Bc are inserted at positions corresponding to the bosses 34Bc of the rear region 34B, and the positioning pins 34Bd of the rear region 34B. Positioning pin insertion holes 50d through which the positioning pins 34Bd are inserted are respectively formed at positions corresponding to. Further, the substrate 50 is formed with lance insertion holes 50e through which the lances 34Ab are inserted at positions corresponding to the lances 34Ab of the front region 34A.
　基板５０の挟持は、第１リフレクタ３０の左右１対の第１カバー部３４を基板５０の上面５０ａに押し当てるとともに第２リフレクタ４０の第２カバー部４４を基板５０の上面５０ａに押し当てた状態で、第１リフレクタ３０の３箇所に配置されたボス３４Ｂｃにネジ６０を下方から挿入してネジ締めすることにより行われる。 The substrate 50 is clamped by pressing the pair of left and right first cover portions 34 of the first reflector 30 against the upper surface 50a of the substrate 50 and pressing the second cover portion 44 of the second reflector 40 against the upper surface 50a of the substrate 50. In this state, the screw 60 is inserted into the bosses 34Bc arranged at three positions of the first reflector 30 from below and tightened.
　その際、第１リフレクタ３０の各位置決めピン３４Ｂｄを基板５０の位置決めピン挿通孔５０ｄおよび第２リフレクタ４０の各位置決めピン挿通孔４４Ｂｄに挿入することにより、第１リフレクタ３０と基板５０と第２リフレクタ４０との水平方向の位置決めが行われる。 At that time, by inserting the positioning pins 34Bd of the first reflector 30 into the positioning pin insertion holes 50d of the substrate 50 and the positioning pin insertion holes 44Bd of the second reflector 40, the first reflector 30, the substrate 50, and the second reflector. Positioning in the horizontal direction with 40 is performed.
　そして、この状態で、第１リフレクタ３０の各ランス３４Ａｂを、基板５０の各ランス挿通孔５０ｅおよび第２リフレクタ４０の各ランス係合孔４４Ａｂを介して、第２カバー部４４に係合させることにより、第１リフレクタ３０と第２リフレクタ４０とのランス係合が行われる。 In this state, each lance 34Ab of the first reflector 30 is engaged with the second cover portion 44 via each lance insertion hole 50e of the substrate 50 and each lance engagement hole 44Ab of the second reflector 40. Thus, the lance engagement between the first reflector 30 and the second reflector 40 is performed.
　上記ネジ締めは、第１リフレクタ３０の各ボス３４Ｂｃの先端部を第２リフレクタ４０の各ボス係合部４４Ｂｃに嵌め込んだ状態でそのネジ挿通孔４４Ｂｅを介してボス３４Ｂｃにネジ６０を挿入することによって行われる。 In the screw tightening, the screw 60 is inserted into the boss 34Bc through the screw insertion hole 44Be in a state in which the tip end portion of each boss 34Bc of the first reflector 30 is fitted into each boss engaging portion 44Bc of the second reflector 40. Is done by.
　上記ネジ締めが完了したとき、第１リフレクタ３０の左右１対の第１カバー部３４の後部領域３４Ｂにおいては、そのフランジ部３４Ｂａと各ボス係合部４４Ｂｃの基端部と各位置決めピン３４Ｂｄの基端部とが、基板５０の上面５０ａに当接する。また、第２リフレクタ４０の第２カバー部４４の後部領域４４Ｂにおいては、そのフランジ部４４Ｂａと各ボス係合部４４Ｂｃの基端部と各ビード４４Ｂｆとが、基板５０の下面５０ｂに当接する。これにより、第１リフレクタ３０の左右１対の第１カバー部３４と第２リフレクタ４０の第２カバー部４４とによる基板５０の挟持が安定的に行われる。 When the screw tightening is completed, in the rear region 34B of the pair of left and right first cover portions 34 of the first reflector 30, its flange portion 34Ba, the base end portion of each boss engaging portion 44Bc, and each positioning pin 34Bd The base end part contacts the upper surface 50 a of the substrate 50. Further, in the rear region 44 </ b> B of the second cover portion 44 of the second reflector 40, the flange portion 44 </ b> Ba, the base end portion of each boss engagement portion 44 </ b> Bc, and each bead 44 </ b> Bf are in contact with the lower surface 50 b of the substrate 50. Thus, the substrate 50 is stably held by the pair of left and right first cover portions 34 of the first reflector 30 and the second cover portion 44 of the second reflector 40.
　第１および第２リフレクタ３０、４０のフランジ部３４Ｂａ、４４Ｂａは、基板５０を挟持した状態において、その上面５０ａに搭載された点灯制御部品５２よりも灯具前方側に位置している。 The flange portions 34Ba and 44Ba of the first and second reflectors 30 and 40 are located on the front side of the lamp with respect to the lighting control component 52 mounted on the upper surface 50a in a state where the substrate 50 is sandwiched.
　第１リフレクタ３０には、その左右１対の第１カバー部３４の後部領域３４Ｂに、第２発光素子２４で発生した熱を第１リフレクタ３０の上方空間へ逃がすための放熱用開口部３４Ｂｇが形成されている。この放熱用開口部３４Ｂｇは、第２発光素子２４の真上に位置するように左右１対の後部領域３４Ｂにおける左右１対の第１反射面部３２相互の接続位置に形成されている。 The first reflector 30 has a heat radiating opening 34 </ b> Bg for releasing the heat generated in the second light emitting element 24 to the space above the first reflector 30 in the rear region 34 </ b> B of the pair of left and right first cover portions 34. Is formed. The heat radiation opening 34Bg is formed at a connection position between the pair of left and right first reflecting surface portions 32 in the pair of left and right rear regions 34B so as to be located immediately above the second light emitting element 24.
　次に本実施形態の作用について説明する。 Next, the operation of this embodiment will be described.
　本実施形態に係る車両用灯具１０は、基板５０の両面に搭載された第１および第２発光素子２２、２４からの出射光を第１および第２リフレクタ３０、４０によって灯具前方へ向けて反射させる構成となっているが、第１リフレクタ３０における第１反射面部３２よりも基板５０側には該基板５０を覆う第１カバー部３４が配置されるとともに該第１カバー部３４には第１発光素子２２からの出射光を第１反射面部３２に入射させるための第１透光部３４Ａａが形成されている。また、第２リフレクタ４０における第２反射面部４２よりも基板５０側には該基板５０を覆う第２カバー部４４が配置されるとともに該第２カバー部４４には第２発光素子２４からの出射光を第２反射面部４２に入射させるための第２透光部４４Ａａが形成されている。このため、第１および第２発光素子２２、２４からの出射光によってグレア光等の迷光が発生してしまうのを効果的に抑制することができる。 The vehicular lamp 10 according to the present embodiment reflects light emitted from the first and second light emitting elements 22 and 24 mounted on both surfaces of the substrate 50 toward the front of the lamp by the first and second reflectors 30 and 40. The first cover 30 is disposed on the substrate 50 side of the first reflector 30 with respect to the first reflecting surface portion 32, and the first cover portion 34 has a first cover 34. A first light transmitting part 34 </ b> Aa for allowing the light emitted from the light emitting element 22 to enter the first reflecting surface part 32 is formed. In addition, a second cover portion 44 that covers the substrate 50 is arranged on the substrate 50 side of the second reflector 40 with respect to the second reflecting surface portion 42, and the second cover portion 44 has an output from the second light emitting element 24. A second light transmitting part 44Aa for allowing incident light to enter the second reflecting surface part 42 is formed. For this reason, it is possible to effectively suppress the generation of stray light such as glare light due to the light emitted from the first and second light emitting elements 22 and 24.
　その上で、基板５０は第１カバー部３４と第２カバー部４４とによってその両面側から挟持されているので、部品点数を最小限に抑えた上で迷光の発生を抑制することができる。 In addition, since the substrate 50 is sandwiched by the first cover part 34 and the second cover part 44 from both sides, the number of parts can be minimized and the generation of stray light can be suppressed.
　このように本実施形態によれば、基板５０の両面に搭載された第１および第２発光素子２２、２４からの出射光を第１および第２リフレクタ３０、４０によって灯具前方へ向けて反射させるように構成された車両用灯具１０において、部品点数を増やすことなく第１および第２発光素子２２、２４からの迷光の発生を抑制することができる。 As described above, according to the present embodiment, the emitted light from the first and second light emitting elements 22 and 24 mounted on both surfaces of the substrate 50 is reflected toward the front of the lamp by the first and second reflectors 30 and 40. In the vehicular lamp 10 configured as described above, it is possible to suppress generation of stray light from the first and second light emitting elements 22 and 24 without increasing the number of parts.
　その際、本実施形態においては、第１カバー部３４と第２カバー部４４とがランス係合されているので、基板５０の挟持構造を簡素化することができ、これにより車両用灯具１０の組付けを容易に行うことが可能となる。 At this time, in the present embodiment, since the first cover portion 34 and the second cover portion 44 are engaged with each other by the lance, the sandwiching structure of the substrate 50 can be simplified. Assembling can be easily performed.
　しかも本実施形態においては、このランス係合が、第１カバー部３４と第１反射面部３２との接続位置および第２カバー部４４と第２反射面部４２との接続位置よりも灯具前方側の位置において行われているので、次のような作用効果を得ることができる。 Moreover, in this embodiment, this lance engagement is more forward of the lamp than the connection position between the first cover portion 34 and the first reflection surface portion 32 and the connection position between the second cover portion 44 and the second reflection surface portion 42. Since it is performed at the position, the following effects can be obtained.
　すなわち、基板５０の挟持構造は、上記各接続位置よりも灯具後方側の位置に設けることが車両用灯具１０の配光性能に影響を及ぼさないようにするという観点からは好ましいが、基板５０を確実に挟持するという観点からは上記各接続位置よりも灯具前方側の位置においても基板５０を位置決めしておくことが好ましい。その点、ランス係合は車両用灯具１０の配光性能にほとんど悪影響を及ぼすことなく行うことが可能であるので、これを上記各接続位置よりも灯具前方側の位置において行うことにより、車両用灯具１０の配光性能にほとんど悪影響を及ぼすことなく上記各接続位置の前後両側の複数箇所において基板５０を位置決めした状態でその挟持を行うことができる。 That is, the sandwiching structure of the substrate 50 is preferable from the viewpoint of not affecting the light distribution performance of the vehicular lamp 10 to be provided at a position on the rear side of the lamp relative to the connection positions. From the viewpoint of securely holding the substrate, it is preferable to position the substrate 50 at a position on the front side of the lamp rather than the above connection positions. In that respect, since the lance engagement can be performed with almost no adverse effect on the light distribution performance of the vehicular lamp 10, by performing this at a position on the front side of the lamp with respect to each of the connection positions described above, It is possible to hold the substrate 50 in a state in which the substrate 50 is positioned at a plurality of positions on both the front and rear sides of each connection position without adversely affecting the light distribution performance of the lamp 10.
　しかも、このランス係合は、灯具前後方向に延びる鉛直面に沿って延びる各ランス３４Ａｂの先端係合部を第２カバー部４４の前部領域４４Ａに形成された各ランス係合孔４４Ａｂから下向きに突出させた状態で行われているので、灯具前方から透光カバー１４を透して灯室内を観察したときに、その存在を目立たないものとすることができる。 In addition, this lance engagement is such that the tip engagement portion of each lance 34Ab extending along the vertical plane extending in the longitudinal direction of the lamp is directed downward from each lance engagement hole 44Ab formed in the front region 44A of the second cover portion 44. Therefore, when the interior of the lamp chamber is observed through the translucent cover 14 from the front of the lamp, the presence of the lamp can be made inconspicuous.
　また本実施形態においては、基板５０がその第１発光素子２２を搭載している面を上向きにした状態で配置されるとともに、この基板５０の上方側に第１リフレクタ３０が配置された構成となっているが、この第１リフレクタ３０には放熱用開口部３４Ｂｇが形成されているので、第２発光素子２４の点灯によって発生する熱を、放熱用開口部３４Ｂｇを介して、第１リフレクタ３０の上方空間へ逃がすことができる。 In the present embodiment, the substrate 50 is disposed with the surface on which the first light emitting element 22 is mounted facing upward, and the first reflector 30 is disposed above the substrate 50. However, since the heat radiation opening 34Bg is formed in the first reflector 30, the heat generated by the lighting of the second light emitting element 24 is transferred to the first reflector 30 through the heat radiation opening 34Bg. It can escape to the space above.
　その際、本実施形態においては、第１発光素子２２が左右方向に２つ並んだ状態で配置されており、また第１リフレクタ３０はその第１反射面部３２および第１カバー部３４が左右方向に２つ並んだ状態で配置された構成となっている。その上で、２つの第１カバー部３４が２つの第１反射面部３２よりも灯具後方側まで延びるように形成されている。そして、放熱用開口部３４Ｂｇは２つの第１反射面部３２よりも灯具後方側における２つの第１反射面部３２相互の接続位置に形成されている。このため、各第１リフレクタ３０の配光機能を損なうことなく放熱を図ることができる。 At this time, in the present embodiment, the two first light emitting elements 22 are arranged in the left-right direction, and the first reflector 30 has the first reflecting surface portion 32 and the first cover portion 34 in the left-right direction. The two are arranged in a line. In addition, the two first cover portions 34 are formed so as to extend further to the lamp rear side than the two first reflecting surface portions 32. The heat radiation opening 34Bg is formed at a connection position between the two first reflection surface portions 32 on the rear side of the lamp with respect to the two first reflection surface portions 32. For this reason, heat radiation can be achieved without impairing the light distribution function of each first reflector 30.
　しかも本実施形態においては、放熱用開口部３４Ｂｇが第２発光素子２４の真上に位置するように形成されているので、その放熱機能を最大限に高めることができる。 In addition, in the present embodiment, the heat radiation opening 34Bg is formed so as to be located immediately above the second light emitting element 24, so that the heat radiation function can be maximized.
　上記実施形態においては、基板５０が水平面に沿って延びるように配置されているものとして説明したが、鉛直面あるいは水平面に対して傾斜した面に沿って延びるように配置された構成とすることも可能である。 In the said embodiment, although demonstrated as what was arrange | positioned so that the board | substrate 50 might extend along a horizontal surface, it may be set as the structure arrange | positioned so that it may extend along the surface inclined with respect to the vertical surface or the horizontal surface. Is possible.
　上記実施形態においては、車両用灯具１０が二輪車用ヘッドランプである場合について説明したが、これ以外の種類の車両用灯具である場合においても、上記実施形態と同様の構成を採用することにより上記実施形態と同様の作用効果を得ることが可能である。 In the above embodiment, the case where the vehicular lamp 10 is a motorcycle headlamp has been described. However, even when the vehicular lamp 10 is a vehicular lamp other than this, by adopting the same configuration as the above embodiment, It is possible to obtain the same effect as the embodiment.
　次に、上記実施形態の変形例について説明する。 Next, a modification of the above embodiment will be described.
　まず、上記実施形態の第１変形例について説明する。 First, a first modification of the above embodiment will be described.
　図７は、本変形例に係る車両用灯具１１０を示す、図２と同様の図である。 FIG. 7 is a view similar to FIG. 2 showing the vehicular lamp 110 according to this modification.
　図７に示すように、この車両用灯具１１０の基本的な構成は上記実施形態に係る車両用灯具１０と同様であるが、その灯具ユニット１２０における第１および第２リフレクタ１３０、１４０の構成が上記実施形態の場合と一部異なっている。 As shown in FIG. 7, the basic configuration of the vehicular lamp 110 is the same as that of the vehicular lamp 10 according to the above embodiment, but the configuration of the first and second reflectors 130 and 140 in the lamp unit 120 is the same. This is partly different from the above embodiment.
　すなわち、本変形例の第１および第２リフレクタ１３０、１４０は、いずれも透明部材で構成されており、その前面にはアルミニウム蒸着等による鏡面処理が施されている。 That is, each of the first and second reflectors 130 and 140 of the present modification is made of a transparent member, and the front surface thereof is subjected to a mirror surface treatment such as aluminum deposition.
　本変形例の第２リフレクタ１４０も、上記実施形態の第２リフレクタ４０と同様、第２反射面部１４２と第２カバー部１４４とを備えている。第２カバー部１４４の前部領域１４４Ａには、第２発光素子２４からの出射光を第２反射面部１４２に入射させる一方、それ以外の光を遮光するための第２透光部１４４Ａａが形成されているが、この第２透光部１４４Ａａは、前部領域１４４Ａの表面の一部に鏡面処理を施さないようにすることにより素通し部として構成されている。この第２透光部１４４Ａａは、上記実施形態の第２透光部４４Ａａと同様、第２反射面部１４２の上端縁に沿って略円弧状に延びるように形成されている。 The second reflector 140 of the present modification also includes a second reflecting surface portion 142 and a second cover portion 144, like the second reflector 40 of the above embodiment. In the front region 144A of the second cover portion 144, a second light transmitting portion 144Aa is formed to allow the light emitted from the second light emitting element 24 to enter the second reflecting surface portion 142 and to block other light. However, the second light transmitting portion 144Aa is configured as a through portion by not applying a mirror surface treatment to a part of the surface of the front region 144A. The second light transmitting portion 144Aa is formed so as to extend in a substantially arc shape along the upper end edge of the second reflecting surface portion 142, like the second light transmitting portion 44Aa of the above embodiment.
　また、本変形例の第１リフレクタ１３０も、上記実施形態の第１リフレクタ３０と同様、左右１対の第１反射面部１３２および第１カバー部１３４を備えている。各第１カバー部１３４の前部領域１３４Ａには、第１発光素子（図示せず）からの出射光を第１反射面部１３２に入射させる一方、それ以外の光を遮光するための第１透光部（図示せず）が形成されている。この第１透光部は、第２透光部１４４Ａａと同様の素通し部として構成されている。 Further, the first reflector 130 of the present modification also includes a pair of left and right first reflecting surface portions 132 and a first cover portion 134, similar to the first reflector 30 of the above embodiment. In the front region 134A of each first cover portion 134, the first light transmitting element for blocking the other light while allowing the outgoing light from the first light emitting element (not shown) to enter the first reflecting surface portion 132. An optical part (not shown) is formed. The first light transmitting portion is configured as a transparent portion similar to the second light transmitting portion 144Aa.
　なお、本変形例の第１リフレクタ１３０においても、その左右１対の第１カバー部１３４の後部領域１３４Ｂには、上記実施形態の放熱用開口部３４Ｂｇと同様の放熱用開口部１３４Ｂｇが形成されている。 Also in the first reflector 130 of this modification, a heat radiation opening 134Bg similar to the heat radiation opening 34Bg of the above embodiment is formed in the rear region 134B of the pair of left and right first cover portions 134. ing.
　本変形例の構成を採用した場合においても上記実施形態の場合と同様の作用効果を得ることができる。 Even when the configuration of this modification is adopted, the same effects as those of the above embodiment can be obtained.
　次に、上記実施形態の第２変形例について説明する。 Next, a second modification of the above embodiment will be described.
　図８は、本変形例に係る車両用灯具の灯具ユニット２２０を主要構成要素に分解して示す、図４と同様の図である。 FIG. 8 is a view similar to FIG. 4 showing the lamp unit 220 of the vehicular lamp according to this modification in an exploded manner.
　図８に示すように、この灯具ユニット２２０の基本的な構成は上記実施形態の灯具ユニット２０と同様であるが、ランス係合構造が上記実施形態の場合と異なっている。 As shown in FIG. 8, the basic structure of the lamp unit 220 is the same as that of the lamp unit 20 of the above embodiment, but the lance engagement structure is different from that of the above embodiment.
　すなわち、本変形例においても、第１リフレクタ２３０における左右１対の第１カバー部２３４の前部領域２３４Ａの下面にはランス２３４Ａｂがそれぞれ形成されている。各ランス２３４Ａｂは、上記実施形態の各ランス３４Ａｂと同様、灯具前後方向に延びる鉛直面に沿って下方に向けて突出しており、その先端係合部が左右１対のランス２３４Ａｂ相互間において互いに逆向きになるように形成されている。 That is, also in this modification, lances 234Ab are formed on the lower surface of the front region 234A of the pair of left and right first cover portions 234 in the first reflector 230, respectively. Each lance 234Ab projects downward along a vertical plane extending in the front-rear direction of the lamp in the same manner as each lance 34Ab in the above-described embodiment, and its tip engaging portion is opposite to each other between the pair of left and right lances 234Ab. It is formed to face.
　一方、本変形例においては、第２リフレクタ２４０における第２カバー部２４４の前部領域２４４Ａの上面に左右１対のランス２４４Ａｂが形成されている。各ランス２４４Ａｂは、灯具前後方向に延びる鉛直面に沿って上方に向けて突出しており、その先端係合部が左右１対のランス２４４Ａｂ相互間において互いに逆向きになるように形成されている。その際、これら左右１対のランス２４４Ａｂは、左右１対のランス２３４Ａｂに対して左右方向の内側にずれた位置に形成されている。 On the other hand, in this modification, a pair of left and right lances 244Ab are formed on the upper surface of the front region 244A of the second cover portion 244 in the second reflector 240. Each lance 244Ab protrudes upward along a vertical plane extending in the front-rear direction of the lamp, and its tip engaging portion is formed to be opposite to each other between the pair of left and right lances 244Ab. At this time, the pair of left and right lances 244Ab are formed at positions shifted inward in the left-right direction with respect to the pair of left and right lances 234Ab.
　本変形例においても、基板２５０の基本的な構成は、上記実施形態の基板５０と同様であるが、左右１対のランス２３４Ａｂに対応する位置に該ランス２３４Ａｂとランス係合するランス係合孔２５０ｆが形成されるとともに、左右１対のランス２４４Ａｂに対応する位置に該ランス２４４Ａｂとランス係合するランス係合孔２５０ｇが形成された構成となっている。 Also in this modification, the basic configuration of the substrate 250 is the same as that of the substrate 50 of the above embodiment, but the lance engagement hole that engages the lance 234Ab at a position corresponding to the pair of left and right lances 234Ab. 250f is formed, and a lance engagement hole 250g for engaging with the lance 244Ab is formed at a position corresponding to the pair of left and right lances 244Ab.
　なお、本変形例の基板２５０には、上記実施形態の基板５０に形成されている左右１対のランス挿通孔５０ｅに相当するものは形成されていない。また、本変形例の第２リフレクタ２４０における第２カバー部２４４の前部領域２４４Ａには、上記実施形態の前部領域４４Ａに形成されているランス係合孔４４Ａｂに相当するものは形成されていない。 In addition, the board | substrate 250 of this modification is not formed with what corresponds to the pair of left and right lance insertion holes 50e formed in the board 50 of the above embodiment. Further, in the front region 244A of the second cover portion 244 in the second reflector 240 of this modification, a portion corresponding to the lance engagement hole 44Ab formed in the front region 44A of the above embodiment is formed. Absent.
　本変形例においては、第１リフレクタ２３０の左右１対の第１カバー部２３４を基板２５０の上面２５０ａに押し当てる際に、左右１対のランス２３４Ａｂが左右１対のランス係合孔２５０ｆに係合する。また、第２リフレクタ２４０の第２カバー部２４４を基板２５０の下面２５０ｂに押し当てる際に、左右１対のランス２４４Ａｂが左右１対のランス係合孔２５０ｇに係合する。これらによって、第１リフレクタ２３０と第２リフレクタ２４０とのランス係合が行われる。 In this modification, when the pair of left and right first cover portions 234 of the first reflector 230 are pressed against the upper surface 250a of the substrate 250, the pair of left and right lances 234Ab are engaged with the pair of left and right lance engagement holes 250f. Match. Further, when the second cover portion 244 of the second reflector 240 is pressed against the lower surface 250b of the substrate 250, the pair of left and right lances 244Ab are engaged with the pair of left and right lance engagement holes 250g. Thus, the lance engagement between the first reflector 230 and the second reflector 240 is performed.
　本変形例の構成を採用した場合においても上記実施形態の場合と同様の作用効果を得ることができる。 Even when the configuration of this modification is adopted, the same effects as those of the above embodiment can be obtained.
　しかも、本変形例の構成を採用することにより、灯具ユニット２２０の組付けが完了した状態において、左右１対のランス２３４Ａｂおよび左右１対のランス２４４Ａｂが灯具前方側から全く見えないようにすることができる。 In addition, by adopting the configuration of the present modification, the pair of left and right lances 234Ab and the pair of left and right lances 244Ab are made completely invisible from the front side of the lamp when the assembly of the lamp unit 220 is completed. Can do.
　なお、上記実施形態およびその変形例において諸元として示した数値は一例にすぎず、これらを適宜異なる値に設定してもよいことはもちろんである。 It should be noted that the numerical values shown as specifications in the above-described embodiment and its modifications are merely examples, and it goes without saying that these may be set to different values as appropriate.
　また本開示は、上記実施形態およびその変形例に記載された構成に限定されるものではなく、これ以外の種々の変更を加えた構成が採用可能である。 Further, the present disclosure is not limited to the configurations described in the above-described embodiment and its modifications, and configurations with various other changes can be adopted.
　本出願は、２０１８年４月２４日に出願された日本国特許出願（特願２０１８－０８３３２２号）に開示された内容を適宜援用する。 This application appropriately incorporates the contents disclosed in the Japanese Patent Application (Japanese Patent Application No. 2018-083322) filed on April 24, 2018.

Claims (5)

  1. 　一方の面に第１発光素子が搭載されるとともに他方の面に第２発光素子が搭載された基板と、前記第１発光素子からの出射光を灯具前方へ向けて反射させる第１リフレクタと、前記第２発光素子からの出射光を灯具前方へ向けて反射させる第２リフレクタと、を備えた車両用灯具において、
    　前記第１リフレクタは、前記第１発光素子からの出射光を反射させるための第１反射面部と、この第１反射面部よりも前記基板側の位置において該基板を覆うように配置された第１カバー部とを備えており、
    　前記第２リフレクタは、前記第２発光素子からの出射光を反射させるための第２反射面部と、この第２反射面部よりも前記基板側の位置において該基板を覆うように配置された第２カバー部とを備えており、
    　前記第１カバー部に、前記第１発光素子からの出射光を前記第１反射面部に入射させるための第１透光部が形成されており、
    　前記第２カバー部に、前記第２発光素子からの出射光を前記第２反射面部に入射させるための第２透光部が形成されており、
    　前記基板は、前記第１カバー部と前記第２カバー部とによって該基板の両面側から挟持されている、車両用灯具。     A substrate having the first light emitting element mounted on one surface and the second light emitting element mounted on the other surface; a first reflector for reflecting the emitted light from the first light emitting element toward the front of the lamp; A vehicle lamp comprising: a second reflector that reflects the emitted light from the second light emitting element toward the front of the lamp;
    The first reflector is a first reflective surface portion for reflecting the emitted light from the first light emitting element, and a first reflector disposed to cover the substrate at a position closer to the substrate than the first reflective surface portion. And a cover part,
    The second reflector is a second reflecting surface portion for reflecting the emitted light from the second light emitting element, and a second reflecting surface disposed to cover the substrate at a position closer to the substrate than the second reflecting surface portion. And a cover part,
    The first cover part is formed with a first light transmitting part for allowing the light emitted from the first light emitting element to enter the first reflecting surface part,
    The second cover part is formed with a second light transmitting part for making the emitted light from the second light emitting element incident on the second reflecting surface part,
    The vehicle lamp, wherein the substrate is sandwiched between the first cover portion and the second cover portion from both sides of the substrate.
  2. 　前記第１カバー部と前記第２カバー部とがランス係合されている、請求項１に記載の車両用灯具。 The vehicular lamp according to claim 1, wherein the first cover part and the second cover part are in lance engagement.
  3. 　前記ランス係合が、前記第１カバー部と前記第１反射面部との接続位置および前記第２カバー部と前記第２反射面部との接続位置よりも灯具前方側の位置において行われている、請求項２に記載の車両用灯具。 The lance engagement is performed at a position in front of the lamp with respect to a connection position between the first cover portion and the first reflection surface portion and a connection position between the second cover portion and the second reflection surface portion. The vehicular lamp according to claim 2.
  4. 　前記基板は、前記第１発光素子を搭載している面を上向きにした状態で配置されており、
    　前記第１リフレクタは、前記基板の上方側に配置されており、かつ該第１リフレクタには放熱用開口部が形成されている、請求項１～３いずれか一項に記載の車両用灯具。     The substrate is disposed with the surface on which the first light emitting element is mounted facing upward,
    The vehicular lamp according to any one of claims 1 to 3, wherein the first reflector is disposed above the substrate, and the first reflector has an opening for heat dissipation.
  5. 　前記第１発光素子は、左右方向に２つ並んだ状態で配置されており、
    　前記第１リフレクタは、前記第１反射面部および前記第１カバー部が左右方向に２つ並んだ状態で配置された構成を有しており、
    　２つの前記第１カバー部は、２つの前記第１反射面部よりも灯具後方側まで延びるように形成されており、
    　前記放熱用開口部は、２つの前記第１反射面部よりも灯具後方側における２つの前記第１反射面部相互の接続位置に形成されている、請求項４に記載の車両用灯具。     The first light emitting elements are arranged in a state where two are arranged in the left-right direction,
    The first reflector has a configuration in which the first reflecting surface portion and the first cover portion are arranged in a state where two are arranged in the left-right direction,
    The two first cover portions are formed to extend to the lamp rear side from the two first reflection surface portions,
    5. The vehicular lamp according to claim 4, wherein the heat radiation opening is formed at a connection position between the two first reflection surface portions on the rear side of the lamp relative to the two first reflection surface portions.
PCT/JP2019/015028 2018-04-24 2019-04-04 Lighting tool for vehicle WO2019208154A1 (en)

Priority Applications (1)

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CN201980027253.9A CN112005046A (en) 2018-04-24 2019-04-04 Vehicle lamp

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JP2018083322A JP7131949B2 (en) 2018-04-24 2018-04-24 vehicle lamp
JP2018-083322 2018-04-24

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