WO2022264892A1 - Vehicle lamp - Google Patents

Vehicle lamp Download PDF

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Publication number
WO2022264892A1
WO2022264892A1 PCT/JP2022/023082 JP2022023082W WO2022264892A1 WO 2022264892 A1 WO2022264892 A1 WO 2022264892A1 JP 2022023082 W JP2022023082 W JP 2022023082W WO 2022264892 A1 WO2022264892 A1 WO 2022264892A1
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WO
WIPO (PCT)
Prior art keywords
lamp
unit
units
lamp units
vehicle
Prior art date
Application number
PCT/JP2022/023082
Other languages
French (fr)
Japanese (ja)
Inventor
正和 佐藤
克明 大多和
裕太 山梨
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
Publication of WO2022264892A1 publication Critical patent/WO2022264892A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
    • B60Q1/068—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle by mechanical means
    • 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
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
    • 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
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/275—Lens surfaces, e.g. coatings or surface structures
    • 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
    • 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
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light
    • F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
    • F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
    • F21W2102/155—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having inclined and horizontal cutoff lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present disclosure relates to vehicle lamps.
  • a rotation support mechanism for supporting a plurality of lamp units so as to be rotatable in a required direction (for example, vertical direction).
  • Patent Document 1 describes such a vehicle lamp in which a plurality of lamp units are arranged at different positions with respect to the longitudinal direction of the lamp.
  • Patent Document 1 a plurality of lamp units are arranged at different positions with respect to the longitudinal direction of the lamp.
  • a lamp unit located away from the directional rotation axis in the longitudinal direction of the lamp is largely displaced from its original position in the desired direction, thereby spoiling the design of the vehicle lamp.
  • An object of the present disclosure is to effectively suppress deterioration in design of a vehicle lamp due to optical axis adjustment in a vehicle lamp in which a plurality of lamp units are arranged at positions different from each other in the longitudinal direction of the lamp.
  • An object of the present invention is to provide a vehicle lamp that can
  • a vehicle lamp includes: A vehicular lamp comprising: a plurality of lamp units; and a rotation support mechanism for supporting the plurality of lamp units so as to be rotatable in a required direction, the plurality of lamp units are arranged at positions different from each other in the longitudinal direction of the lamp;
  • the rotation support mechanism includes a unit support member configured to support each of the plurality of lamp units so as to be rotatable in the required direction at positions different from each other in the longitudinal direction of the lamp, and supported by the unit support member. and a unit driving member configured to collectively rotate the plurality of lamp units in the required direction while engaging with each of the plurality of lamp units.
  • the specific number and arrangement of the "plurality of lamp units” are not particularly limited, and in that case, when three or more lamp units are provided, at least two lamp units are mutually arranged in the longitudinal direction of the lamp. It is sufficient if they are arranged at different positions.
  • the specific direction of the "required direction” is not particularly limited, and for example, a vertical direction or a horizontal direction can be adopted.
  • the "rotational support mechanism” may be configured to have only a function for supporting a plurality of lamp units so as to be rotatable in the required direction. It may also be configured to have a function for supporting it so as to be rotatable.
  • a “unit support member” may be a member supported by a lamp body as long as it is configured to support each of a plurality of lamp units rotatably in a required direction at different positions in the longitudinal direction of the lamp. Alternatively, it may be the lamp body itself.
  • the "unit driving member” is configured to collectively rotate a plurality of lamp units in a desired direction while being engaged with each of the plurality of lamp units supported by the unit supporting member, it is used.
  • a specific configuration for realizing this is not particularly limited.
  • the rotation axis can be arranged near each lamp unit in the longitudinal direction of the lamp. It is possible to prevent the unit from being largely displaced in the desired direction from its original position. As a result, it is possible to effectively prevent deterioration of the design of the vehicle lamp.
  • the vehicle in a vehicle lamp having a plurality of lamp units, even when the plurality of lamp units are arranged at different positions in the longitudinal direction of the lamp, the vehicle can be It is possible to effectively prevent deterioration of the design of the lamp.
  • FIG. 1 is a front view showing a vehicle lamp according to one embodiment of the present disclosure.
  • FIG. 2 is a cross-sectional view taken along line II-II of FIG.
  • FIG. 3 is a cross-sectional view taken along line III-III of FIG.
  • FIG. 4 is a diagram explaining the details of the IV part of FIG.
  • FIG. 5 is a diagram for explaining the details of the V section in FIG.
  • FIG. 6 is a perspective view showing main components of the vehicle lamp.
  • FIG. 7 is a diagram explaining the details of the VII section in FIG.
  • FIG. 8 is a diagram showing how the main components are assembled.
  • FIG. 9 is a perspective view of a light distribution pattern formed by light emitted from a vehicle lamp.
  • FIG. 10 is a diagram showing the action of the embodiment.
  • FIG. 11 is a diagram showing a comparative example of the embodiment;
  • FIG. 12 is a diagram showing a first modification of the embodiment.
  • FIG. 13 is a diagram showing a second
  • FIG. 1 is a front view showing a vehicle lamp 10 according to one embodiment of the present disclosure.
  • 2 is a cross-sectional view taken along line II--II of FIG.
  • FIG. 3 is a cross-sectional view taken along line III--III of FIG.
  • the direction indicated by X is the "front of the lamp”
  • the direction indicated by Y is the “left direction” ("right direction” when viewed from the front of the lamp) orthogonal to the "front of the unit”
  • the direction indicated by Z. is the "upward direction”. The same applies to figures other than these.
  • the vehicle lamp 10 is configured as a headlamp for low beam irradiation mounted on the right front end portion of a vehicle.
  • three lamp units 20 are arranged in the left-right direction (that is, in the vehicle width direction) in a lamp chamber formed by a lamp body 12 and a transparent transparent cover 14 attached to the front end opening of the lamp body 12. are housed side by side.
  • the light-transmitting cover 14 is made of a transparent resin member, and is formed to extend from the left side (that is, the inner side in the vehicle width direction) toward the right side while being inclined toward the rear side of the lamp.
  • a light-shielding treatment is applied to a region 14B other than the irradiation light transmission region 14A through which the irradiation light from the three lamp units 20 is transmitted.
  • the light shielding process is performed by forming a colored coating film (for example, a black coating film) 16 on the inner surface of the translucent cover 14 .
  • the irradiation light transmission region 14A is set as a single oblong rectangular region, and the region 14B is set as a region surrounding the irradiation light transmission region 14A over the entire circumference.
  • the three lamp units 20 are all projector-type lamp units having the same configuration, and are arranged at different positions with respect to the front-rear direction of the lamp. Specifically, the three lamp units 20 are arranged on the same horizontal plane, and according to the shape of the light-transmitting cover 14, the one located on the right side is arranged on the rear side of the lamp.
  • the three lamp units 20 are supported vertically and horizontally with respect to the lamp body 12 by a rotation support mechanism 50 having a unit support member 52 and a unit drive member 54 .
  • a rotation support mechanism 50 having a unit support member 52 and a unit drive member 54 .
  • the term “rotatable vertically and horizontally” as used herein means that the direction of the lighting unit, i.e., the direction of light emitted by the lighting unit, can be changed vertically and horizontally.
  • Both the unit supporting member 52 and the unit driving member 54 are made of resin.
  • the unit support member 52 is configured to support each of the three lamp units 20 so as to be vertically rotatable at positions different from each other in the longitudinal direction of the lamp. More specifically, each lamp unit 20 is arranged at a substantially center position in the front-rear direction of the lamp unit and at the lower end portion of the lamp unit 20 so as to vertically extend with respect to the unit support member 52 about a rotation axis Ax1 extending horizontally in the left-right direction. It is configured to be rotatable.
  • the unit driving member 54 is configured to engage with each of the three lamp units 20 supported by the unit support member 52 and collectively rotate them in the vertical direction. Specifically, the unit driving member 54 engages with each lamp unit 20 at a position substantially directly above the rotation axis Ax1 of each lamp unit 20, and moves in the longitudinal direction of the lamp in this state (see FIG. 3). (see arrow A shown in FIG. 3) to rotate each lamp unit 20 around the rotation axis Ax1 (see arrow B shown in FIG. 3).
  • the unit support member 52 includes a pivot pin 62 extending forward from the lower right end of the rear wall of the lamp body 12 (lower left end in the front view of the lamp), and a pivot pin 62 extending forward from the lower left end of the rear wall of the lamp body 12 . It is supported by the lamp body 12 via an aiming screw 64 extending forward of the lamp.
  • the unit drive member 54 is supported by the lamp body 12 via an aiming screw 66 extending forward from the upper right end of the rear wall of the lamp body 12 toward the front of the lamp.
  • the pivot pin 62 has a spherical tip. A proximal end portion of the pivot pin 62 is fixedly supported by the lamp body 12 .
  • the unit support member 52 is provided with a spherical step bearing 68 that engages with the tip of the pivot pin 62 .
  • the aiming screw 64 has a front half formed as a threaded portion, and its base end is rotatably supported with respect to the lamp body 12 .
  • the unit support member 52 is provided with an aiming nut 72 that is screwed with the threaded portion of the aiming screw 64 .
  • the aiming screw 66 has its front half formed as a threaded portion, and its base end is connected to the leveling actuator 40 attached to the lamp body 12 .
  • the unit driving member 54 is provided with an aiming nut 74 that is screwed with the threaded portion of the aiming screw 66 .
  • the screwing position of the aiming screw 66 and the aiming nut 74 is located substantially directly above the engagement position of the pivot pin 62 and the spherical step bearing 68 .
  • the screwing position of the aiming screw 64 and the aiming nut 72 is located on the front side of the lamp from the position right beside the engaging position of the pivot pin 62 and the spherical step bearing 68 .
  • the three lamp units 20, together with the unit supporting member 52 and the unit driving member 54, are supported so as to be rotatable in the left-right direction with respect to the lamp body 12 about a rotation axis Ax2 extending in a substantially vertical direction.
  • the rotation axis Ax2 extends so as to connect the screwed position of the aiming screw 66 and the aiming nut 74 and the engagement position of the pivot pin 62 and the spherical step bearing 68 .
  • the optical axis adjustment in the horizontal direction is collectively performed by rotating the aiming screw 64. As shown in FIG.
  • each lamp unit 20 and the unit drive member 54 is changed in the longitudinal direction of the lamp (see arrow C in FIG. 3) to move the engagement position (see arrow C shown in FIG. 3) to change the vertical rotation angle of each lamp unit 20 .
  • a fine adjustment mechanism 80 is provided for fine adjustment of the (details will be described later).
  • each lamp unit 20 Next, a specific configuration of each lamp unit 20 will be described.
  • FIG. 4 is a detailed view of part IV in FIG. 1
  • FIG. 5 is a detailed view of part V in FIG. 6 is a perspective view showing main components of the vehicle lamp 10
  • FIG. 7 is a detailed view of the VII section in FIG.
  • the lamp unit 20 includes a projection lens 22 having an optical axis Ax extending in the longitudinal direction of the vehicle, and a light source arranged behind the rear focal point F of the projection lens 22. and a reflector 26 arranged to cover the light emitting element 24 from above and reflecting the light from the light emitting element 24 toward the projection lens 22 .
  • the projection lens 22 is configured as a plano-convex aspherical lens with a convex front surface, and has a horizontally long rectangular outer shape when viewed from the front of the lamp.
  • the light emitting element 24 is composed of a white light emitting diode having a horizontally long rectangular light emitting surface.
  • the reflector 26 has a substantially ellipsoidal reflecting surface with the light emission center of the light emitting element 24 as the first focus. It is designed to let
  • the light emitting element 24 and the reflector 26 are supported on the upper surface of an aluminum die-cast base member 30, and the projection lens 22 is also supported by the base member 30.
  • the base member 30 is formed with an upward reflecting surface 30a that reflects part of the reflected light from the reflector 26 upward toward the projection lens 22 in order to form the cutoff line of the light distribution pattern for low beam.
  • a front edge 30a1 of the upward reflecting surface 30a is formed so as to curve and extend from the rear focal point F toward the left and right sides toward the front side of the lamp.
  • the base member 30 is provided with a plurality of heat dissipation fins 30b, and functions as a heat sink for efficiently dissipating the heat generated by the light emitting element 24.
  • the plurality of heat radiating fins 30b are arranged at equal intervals in the left-right direction and are formed so as to extend vertically downward.
  • a frame portion 30c extending in a horizontally long rectangular shape along a vertical plane perpendicular to the optical axis Ax is formed. It's like
  • a pair of horizontal pins 30d are formed at the lower ends of the left and right side surfaces of the base member 30 so as to protrude in both the left and right directions.
  • the base member 30 is configured to be rotatable about the rotation axis Ax1 by engaging the pair of left and right horizontal pins 30d with the unit support member 52. As shown in FIG.
  • a vertical bracket 30e extending vertically upward is formed on the right end of the upper surface of the base member 30. As shown in FIG. The vertical bracket 30e is formed at the same position as the right horizontal pin 30d in the longitudinal direction of the lamp, and an adjusting nut 82 is provided at the upper end thereof.
  • adjusting screws 84 extending forward of the lamp are arranged at positions corresponding to the three lamp units 20, respectively.
  • Each adjusting screw 84 has a front half formed as a threaded portion, and a proximal end thereof is rotatably supported by the unit driving member 54 .
  • Each adjusting screw 84 is screwed with the adjusting nut 82 of each lamp unit 20 at its threaded portion.
  • the fine adjustment mechanism 80 is composed of an adjusting nut 82 and an adjusting screw 84.
  • the unit support member 52 is formed so as to surround the base member 30 of each lamp unit 20 from the lamp rear side and both left and right sides.
  • the unit support member 52 is configured to support the base member 30 so as to be rotatable about the rotation axis Ax1 at a pair of left and right arm portions 52A and 52B extending toward the front of the lamp.
  • the arm portion 52A located on the right side has a pair of vertical plate-like portions 52A1 and 52A2 spaced apart in the left-right direction.
  • Each of the vertical plate-shaped portions 52A1 and 52A2 is formed to extend in a wedge shape toward the front of the lamp when viewed from the side of the lamp, and is configured to engage with the horizontal pin 30d on the right side of the base member 30 at its distal end.
  • the outer vertical plate-shaped portion 52A1 is formed so that the tip thereof protrudes and extends in a wedge shape toward the front of the lamp in plan view.
  • An engagement recess 52A1a is formed on the inner surface of the vertical plate-shaped portion 52A1 to engage with the right horizontal pin 30d from the front side of the lamp.
  • the inner vertical plate-like portion 52A2 has its front end face positioned slightly to the rear of the lamp from the rear end position of the engaging recess 52A1a of the vertical plate-like portion 52A1.
  • An engagement recess 52A2a is formed in the front end surface of the vertical plate-shaped portion 52A2 to engage with the right horizontal pin 30d from the rear side of the lamp.
  • Each of the engaging recesses 52A1a and 52A2a is formed as a recess recessed in a substantially semicircular shape when viewed from the side of the lamp.
  • the arm portion 52B located on the left side has a pair of vertical plate-like portions 52B1 and 52B2 spaced apart in the left-right direction.
  • Each of the vertical plate-shaped portions 52B1 and 52B2 is also formed to extend in a wedge shape toward the front of the lamp when viewed from the side of the lamp, and is configured to engage with the horizontal pin 30d on the left side of the base member 30 at its distal end.
  • a circular through hole 52B2a having an inner diameter slightly larger than the outer diameter of the horizontal pin 30d is formed in the inner vertical plate portion 52B2.
  • the left horizontal pin 30d is inserted into the circular through hole 52B2a of the vertical plate portion 52B2 of the arm portion 52B of the unit support member 52.
  • the right horizontal pin 30d engages with the engaging recess 52A1a of the vertical plate-like portion 52A1 and the engaging recess 52A2a of the vertical plate-like portion 52A2 of the arm portion 52A of the unit support member 52.
  • the base member 30 is rotatably supported by the unit support member 52 about the rotation axis Ax1.
  • FIG. 8 is a view from the same direction as in FIG. 5, showing how the base member 30 is assembled to the unit support member 52.
  • FIG. 8 is a view from the same direction as in FIG. 5, showing how the base member 30 is assembled to the unit support member 52.
  • the left horizontal pin 30d is inserted into the circular through hole 52B2a of the vertical plate portion 52B2.
  • the right horizontal pin 30d is in contact with the front end of the vertical plate portion 52A1 from the front side of the lamp.
  • the base member 30 is configured to engage with the engagement recess 52A1a and the engagement recess 52A2a of the vertical plate-shaped portion 52A2 when the vertical plate-shaped portion 52A1 is flexurally deformed. After this engagement is completed, the tip surface of the left horizontal pin 30d contacts the vertical plate-shaped portion 52B1 and the tip surface of the right horizontal pin 30d contacts the vertical plate-shaped portion 52A1. As a result, the base member 30 is also positioned in the left-right direction.
  • FIG. 9 is a view perspectively showing a low-beam light distribution pattern PL formed on a virtual vertical screen arranged at a position 25 m in front of the vehicle by the light emitted from the vehicle lamp 10.
  • FIG. 9 is a view perspectively showing a low-beam light distribution pattern PL formed on a virtual vertical screen arranged at a position 25 m in front of the vehicle by the light emitted from the vehicle lamp 10.
  • the low-beam light distribution pattern PL is a left-handed low-beam light distribution pattern, and has cutoff lines CL1 and CL2 that are uneven on the left and right at the upper edge thereof.
  • the cutoff lines CL1 and CL2 extend in the horizontal direction in a stepped manner on the left and right sides of the line VV passing vertically through the vanishing point HV in the front direction of the lamp.
  • the opposite lane side portion on the right side of the VV line is formed as a lower cutoff line CL1, and the own lane side portion on the left side of the VV line rises from the lower cutoff line CL1 via an inclined portion. is formed as an upper cutoff line CL2.
  • the elbow point E which is the intersection of the lower cutoff line CL1 and the line VV, is located below HV by about 0.5 to 0.6°.
  • the low-beam light distribution pattern PL is formed as a composite light distribution pattern in which three light distribution patterns PL? formed by the light emitted from the three lamp units 20 are superimposed.
  • all three lamp units 20 have the same configuration, all three light distribution patterns PL? are formed as similar light distribution patterns. Since each lamp unit 20 is configured such that the vertical rotation angle can be finely adjusted by the fine adjustment mechanism 80, the vertical position of the cutoff line of each light distribution pattern PL? is aligned by this fine adjustment. As a result, the cutoff lines CL1 and CL2 of the low-beam light distribution pattern PL are clearly formed.
  • FIG. 10 is a view of the vehicle lamp 10 when the optical axis of the lamp unit 20 is adjusted in the vertical direction, viewed from the same direction as in FIG.
  • the solid line indicates the state where the lamp unit 20 is at the reference position.
  • a two-dot chain line indicates the state when the lamp unit 20 is rotated upward from the reference position to the maximum angle.
  • a dashed line indicates the state when the lighting unit 20 is rotated downward from the reference position to the maximum angle. Note that FIG. 10 shows a state in which the maximum angle is set to ⁇ 4°.
  • the state in which the lighting unit 20 is at the reference position means the state in which the optical axis Ax of the lighting unit 20 is oriented in the horizontal direction. This is achieved by finely adjusting the rotation angle of the unit 20 about the rotation axis Ax1.
  • the lamp unit 20 rotates upward about the rotation axis Ax1 with respect to the unit support member 52, while the unit drive member 54 is moved to the front side of the lamp, the lamp unit 20 rotates downward.
  • hatching indicates the maximum range in which the light emitted from the projection lens 22 can pass through the translucent cover 14 when the lamp unit 20 is in the reference position.
  • the two-dot chain line indicates the maximum range in which the light emitted from the projection lens 22 can pass through the translucent cover 14 when the lamp unit 20 is rotated upward from the reference position.
  • the dashed line indicates the maximum range in which the light emitted from the projection lens 22 can pass through the translucent cover 14 when the lamp unit 20 is rotated downward from the reference position to the maximum angle.
  • H indicates the maximum vertical width of the range through which emitted light is transmitted when the lamp unit 20 is rotated upward from the reference position and when it is rotated downward to the maximum angle.
  • the three lamp units 20 are arranged so that the distances between them and the translucent cover 14 are substantially the same. Further, the position of the rotation axis Ax1 is the same in each lamp unit 20 . Therefore, the maximum vertical width H of each lamp unit 20 also has substantially the same value.
  • the vertical width of the irradiation light transmitting region 14A of the light transmitting cover 14 is set to be slightly larger than the maximum vertical width H.
  • FIG. 11 is a diagram showing a comparative example of this embodiment from the same direction as FIG.
  • the vehicle lamp 10' according to this comparative example also includes three lamp units 20' (single unit in FIG. 11) in a lamp chamber formed by a lamp body 12' and a translucent cover 14' (only the lamp unit 20' shown in the figure) is accommodated so as to be vertically rotatable. different from the case.
  • the rotation support mechanism 50' of this comparative example has a configuration including a bracket 52' in which the unit support member 52 and the unit drive member 54 of this embodiment are integrated as a single member.
  • the bracket 52' is supported by the lamp body 12' via a spherical step bearing 68' and an aiming nut 72', and is attached to the lamp body 12' via a pivot pin 62' and an aiming screw 64', as in the present embodiment.
  • ' and the aiming screw 64' is connected to the leveling actuator 40'.
  • FIG. 11 shows a state in which the maximum angle is set to ⁇ 4°.
  • the lighting unit 20' rotates horizontally along with the bracket 52' so as to pass through the engagement position between the pivot pin 62' and the spherical step bearing 68'. It rotates around the axis Ax1'.
  • the maximum vertical width H' that allows the light emitted from the projection lens 22' to pass through the translucent cover 14' when the lamp unit 20' is rotated upward and downward from the reference position to the maximum angle is shown in FIG. It is much larger than the maximum vertical width H shown. Therefore, the vertical width of the irradiation light transmission region 14A' of the light transmission cover 14' is also considerably larger than the vertical width of the irradiation light transmission region 14A of the light transmission cover 14 shown in FIG.
  • the maximum vertical width of the lighting unit 20 located on the rear side of the lighting unit 20 shown in FIG. is even larger than the maximum vertical width H'.
  • the vehicular lamp 10 is configured such that three lamp units 20 arranged at different positions in the longitudinal direction of the lamp can be rotated vertically (in a desired direction) by a rotation support mechanism 50 .
  • the rotary support mechanism 50 includes a unit support member 52 configured to support each of the three lamp units 20 so as to be rotatable in the vertical direction at positions different from each other in the longitudinal direction of the lamp, and a unit support member 52. and a unit driving member 54 configured to collectively rotate the three lamp units 20 in the vertical direction while being engaged with each of the three lamp units 20 supported by.
  • the rotation axis Ax1 when each of the three lamp units 20 rotates in the vertical direction can be arranged near each lamp unit 20 in the longitudinal direction of the lamp. It is possible to prevent each lamp unit 20 from being largely displaced in the vertical direction from its original position when it is moved. As a result, it is possible to effectively prevent deterioration of the design of the vehicle lamp 10 .
  • the three lamp units 20 are arranged at different positions in the longitudinal direction of the lamp, the three lamps It is possible to effectively prevent deterioration of the design of the vehicle lamp 10 due to the optical axis adjustment of the unit 20 .
  • the engaging portion between each lamp unit 20 and the unit drive member 54 is provided with a fine adjustment mechanism 80 for finely adjusting the vertical rotation angle of each lamp unit. It is possible to easily eliminate vertical optical axis misalignment between the two lamp units 20 . Accordingly, it is possible to easily form the cutoff lines CL1 and CL2 of the low-beam light distribution pattern PL formed by the light emitted from the vehicle lamp 10 clearly.
  • the rotation support mechanism 50 is configured to rotate the three lamp units 20 with respect to the lamp body 12 not only in the vertical direction but also in the horizontal direction (direction orthogonal to the required direction). Therefore, the degree of freedom of optical axis adjustment can be increased.
  • the rotation axis Ax1 which is the center of rotation in the vertical direction, extends in a direction perpendicular to the longitudinal direction of the lamp.
  • the rotation axis Ax1' for vertically rotating the three lamp units 20' is not in the horizontal direction perpendicular to the longitudinal direction of the lamp but in an oblique direction (for example, the pivot pin 62 in FIG. 2). and the engaging position of the spherical step bearing 68 and the screwing position of the aiming screw 64 and aiming nut 72), when the optical axis is adjusted in the vertical direction, each lamp unit 20 ' rotates along a vertical plane inclined with respect to the vertical plane extending in the longitudinal direction of the lamp.
  • the cutoff lines CL1 and CL2 of the low-beam light distribution pattern PL incline from the horizontally extending state.
  • each lamp unit 20 since the rotation axis Ax1 extends in the left-right direction perpendicular to the front-rear direction of the lamp, each lamp unit 20 extends in the vertical plane extending in the front-rear direction of the lamp when the optical axis is adjusted in the vertical direction. Rotate along. As a result, the cutoff lines CL1 and CL2 of the low-beam light distribution pattern PL are maintained to extend in the horizontal direction.
  • the lamp body 12 is provided with a leveling actuator 40 and the unit driving member 54 is connected to the leveling actuator 40 .
  • the rotation support mechanism 50 can have a leveling function.
  • the irradiation light transmitting region 14A can be formed in a horizontally long belt shape, and the design of the vehicle lamp 10 can be enhanced.
  • the design of the vehicle lamp 10 can be further enhanced.
  • each lamp unit 20 is assembled to the unit support member 52 as follows. First, the left horizontal pin 30d formed in the base member 30 is inserted into the circular through hole 52B2a formed in the vertical plate portion 52B2 of the unit support member 52. As shown in FIG. After that, the right horizontal pin 30d formed on the base member 30 is brought into contact with the front end of the vertical plate portion 52A1 from the front side of the lamp. Next, after the vertical plate-like portion 52A1 is bent and deformed, it is engaged with the engagement recess 52A1a and the engagement recess 52A2a of the vertical plate-like portion 52A2. In this way, the efficiency of the assembly work of the lamp unit 20 to the unit support member 52 can be enhanced.
  • the three lamp units 20 are arranged side by side in the horizontal direction on the same horizontal plane, but it is also possible to arrange them in other states.
  • all three lamp units 20 are configured to form the same light distribution pattern PL. However, it is also possible to configure them to form different light distribution patterns. . In this case, it is also possible to adopt a configuration in which a high-beam light distribution pattern or the like is formed by light emitted from some of the lamp units 20 .
  • each lamp unit 20 has been described as a projector-type lamp unit having a reflector 26.
  • a projector-type lamp unit, a parabola-type lamp unit, or the like without a reflector 26 may be used. is also possible.
  • the vehicle lamp 10 has been described as having three lamp units 20, but it is also possible to have a configuration with two or less or four or more lamp units 20.
  • the unit driving member 54 is connected to the leveling actuator 40 via the aiming screw 66, but the aiming screw 66 may be directly rotatably supported by the lamp body 12. It is possible.
  • each of the three lamp units 20 is supported to be vertically rotatable with respect to the unit support member 52, and the unit support member 52 is horizontally rotatable with respect to the lamp body 12.
  • each of the three lamp units 20 is directly supported on the lamp body 12 so as to be vertically rotatable. Even when such a configuration is employed, it is possible to effectively prevent deterioration of the design of the vehicle lamp 10 due to vertical optical axis adjustment. Further, in a fog lamp or the like that does not require lateral adjustment of the optical axis, the same effects as those of the embodiment can be obtained with a simple lamp configuration.
  • FIG. 12 is a view showing the vehicle lamp 110 according to this modified example, viewed from the same direction as in FIG.
  • the basic configuration of this modification is the same as that of the embodiment, but the configuration of the translucent cover 114 is partially different from that of the embodiment.
  • the light-transmitting cover 114 of this modified example also has a configuration in which a light-shielding treatment is applied to an area 114B other than the irradiation light transmission area 114A through which the irradiation light from the three lamp units 20 is transmitted.
  • the light shielding process is performed by forming a colored coating film 116 on the inner surface of the translucent cover 114 .
  • the irradiation light transmission areas 114A of the light transmission cover 114 are set as three oblong rectangular areas arranged in front of the lamp units 20, respectively.
  • the irradiation light transmission area 114A of the light transmission cover 114 can be set as a horizontally elongated rectangular area of the minimum necessary size. Thereby, the designability of the vehicle lamp 110 can be enhanced.
  • FIG. 13 is a view showing the vehicle lamp 210 according to this modified example, viewed from the same direction as in FIG.
  • the basic configuration of this modification is the same as that of the embodiment, but the configuration of the translucent cover 214 is partially different from that of the embodiment.
  • the light-transmitting cover 214 of this modified example also has a configuration in which a light-shielding treatment is applied to a region 214B other than the irradiation light transmission region 214A through which the irradiation light from the three lamp units 20 is transmitted.
  • the translucent cover 214 is produced as a two-color molded product.
  • the light shielding process is performed by forming the irradiation light transmitting region 214A with a transparent resin material and forming the inner surface side portion of the region 214B located around it with a colored resin material (for example, a black resin material).
  • the vertical width of the irradiation light transmitting region 214A is set to be slightly larger than the maximum vertical width H. As shown in FIG.
  • FIG. 14 is a view showing the vehicle lamp 310 according to this modified example, viewed from the same direction as in FIG.
  • the basic configuration of this modification is the same as that of the embodiment, but the configuration of the translucent cover 314 is partially different from that of the embodiment, and the extension panel 318 is It has an additional configuration.
  • the translucent cover 314 of this modified example is entirely made of a transparent resin member and is not subjected to light shielding treatment.
  • the extension panel 318 is made of an opaque resin member and is arranged to extend along the translucent cover 314 inside the lamp chamber.
  • An opening 318a is formed in the extension panel 318 in a region through which light emitted from the three lamp units 20 passes.
  • the shape of the opening 318a is a horizontally long rectangular shape that surrounds, from the inside of the lamp chamber, an irradiation light transmitting region 314A through which the irradiation light from the three lamp units 20 is transmitted in the light transmitting cover 314.
  • a peripheral flange portion 318b extending toward the rear side of the lamp along the maximum irradiation range of the irradiation light from the three lamp units 20 is formed on the peripheral portion of the opening 318a.
  • the design of the vehicle lamp 310 can be improved without requiring post-processing of the translucent cover 314 .

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Abstract

A vehicle lamp (10) comprising a plurality of lamp units (20), and a pivot support mechanism (50) for supporting the plurality of lamp units (20) so as to be pivotable in a desired direction. The plurality of lamp units (20) are disposed at mutually different positions with respect to a lamp front-rear direction. The pivot support mechanism (50) comprises a unit support member (52) configured to support each of the plurality of lamp units (20) so as to be pivotable in the desired direction, at mutually different positions with respect to the lamp front-rear direction, and a unit drive member (54) configured to collectively pivot the plurality of lamp units (20) in a desired direction in a state in which the unit drive member (54) is engaged with each of the plurality of lamp units (20) supported by the unit support member (52).

Description

車両用灯具vehicle lamp
　本開示は、車両用灯具に関する。 The present disclosure relates to vehicle lamps.
　車両用灯具の構成として、複数の灯具ユニットを所要方向（例えば上下方向）に回動可能に支持するための回動支持機構を備えたものが知られている。 As a configuration of a vehicle lamp, there is known one having a rotation support mechanism for supporting a plurality of lamp units so as to be rotatable in a required direction (for example, vertical direction).
　「特許文献１」には、このような車両用灯具において、複数の灯具ユニットが灯具前後方向に関して互いに異なる位置に配置されたものが記載されている。 "Patent Document 1" describes such a vehicle lamp in which a plurality of lamp units are arranged at different positions with respect to the longitudinal direction of the lamp.
日本国特開２０１７－１８８３３１号公報Japanese Patent Application Laid-Open No. 2017-188331
　「特許文献１」に記載された車両用灯具においては、複数の灯具ユニットが灯具前後方向に関して互いに異なる位置に配置されているので、回動支持機構によって所要方向の光軸調整を行うと、所要方向の回動軸線から灯具前後方向に離れた位置にある灯具ユニットは元の位置から所要方向に大きく変位してしまい、このため車両用灯具の意匠性が損なわれてしまう。 In the vehicular lamp described in "Patent Document 1", a plurality of lamp units are arranged at different positions with respect to the longitudinal direction of the lamp. A lamp unit located away from the directional rotation axis in the longitudinal direction of the lamp is largely displaced from its original position in the desired direction, thereby spoiling the design of the vehicle lamp.
　本開示は、複数の灯具ユニットが灯具前後方向に関して互いに異なる位置に配置されている車両用灯具において、その光軸調整によって車両用灯具の意匠性が損なわれてしまうことを効果的に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。 An object of the present disclosure is to effectively suppress deterioration in design of a vehicle lamp due to optical axis adjustment in a vehicle lamp in which a plurality of lamp units are arranged at positions different from each other in the longitudinal direction of the lamp. An object of the present invention is to provide a vehicle lamp that can
　本開示に係る車両用灯具は、
　複数の灯具ユニットと、前記複数の灯具ユニットを所要方向に回動可能に支持するための回動支持機構と、を備えた車両用灯具であって、
　前記複数の灯具ユニットは、灯具前後方向に関して互いに異なる位置に配置されており、
　前記回動支持機構は、前記複数の灯具ユニットの各々を灯具前後方向に関して互いに異なる位置において前記所要方向に回動可能に支持するように構成されたユニット支持部材と、前記ユニット支持部材に支持された前記複数の灯具ユニットの各々と係合した状態で前記複数の灯具ユニットを一括して前記所要方向に回動させるように構成されたユニット駆動部材とを備えている。 A vehicle lamp according to the present disclosure includes:
A vehicular lamp comprising: a plurality of lamp units; and a rotation support mechanism for supporting the plurality of lamp units so as to be rotatable in a required direction,
the plurality of lamp units are arranged at positions different from each other in the longitudinal direction of the lamp;
The rotation support mechanism includes a unit support member configured to support each of the plurality of lamp units so as to be rotatable in the required direction at positions different from each other in the longitudinal direction of the lamp, and supported by the unit support member. and a unit driving member configured to collectively rotate the plurality of lamp units in the required direction while engaging with each of the plurality of lamp units.
　「複数の灯具ユニット」の具体的な個数や配置は特に限定されるものではなく、その際、３つ以上の灯具ユニットを備えている場合には、少なくとも２つの灯具ユニットが灯具前後方向に関して互いに異なる位置に配置されていればよい。 The specific number and arrangement of the "plurality of lamp units" are not particularly limited, and in that case, when three or more lamp units are provided, at least two lamp units are mutually arranged in the longitudinal direction of the lamp. It is sufficient if they are arranged at different positions.
　「所要方向」の具体的な方向は特に限定されるものではなく、例えば上下方向や左右方向等が採用可能である。 The specific direction of the "required direction" is not particularly limited, and for example, a vertical direction or a horizontal direction can be adopted.
　「回動支持機構」は、複数の灯具ユニットを所要方向に回動可能に支持するための機能のみを備えた構成としてもよいし、これに加えて複数の灯具ユニットを所要方向と直交する方向に回動可能に支持するための機能をも備えた構成としてもよい。 The "rotational support mechanism" may be configured to have only a function for supporting a plurality of lamp units so as to be rotatable in the required direction. It may also be configured to have a function for supporting it so as to be rotatable.
　「ユニット支持部材」は、複数の灯具ユニットの各々を灯具前後方向に関して互いに異なる位置において所要方向に回動可能に支持するように構成されていれば、ランプボディに支持された部材であってもよいし、ランプボディ自体であってもよい。 A "unit support member" may be a member supported by a lamp body as long as it is configured to support each of a plurality of lamp units rotatably in a required direction at different positions in the longitudinal direction of the lamp. Alternatively, it may be the lamp body itself.
　「ユニット駆動部材」は、ユニット支持部材に支持された複数の灯具ユニットの各々と係合した状態で複数の灯具ユニットを一括して所要方向に回動させるように構成されていれば、これを実現するための具体的な構成は特に限定されるものではない。 If the "unit driving member" is configured to collectively rotate a plurality of lamp units in a desired direction while being engaged with each of the plurality of lamp units supported by the unit supporting member, it is used. A specific configuration for realizing this is not particularly limited.
　複数の灯具ユニットの各々が所要方向に回動する際の回動軸線を、灯具前後方向に関して各灯具ユニットの近くに配置することができるので、所要方向の光軸調整を行ったときに各灯具ユニットが元の位置から所要方向に大きく変位してしまわないようにすることができる。これにより車両用灯具の意匠性が損なわれてしまうのを効果的に抑制することができる。 When each of the plurality of lamp units rotates in the required direction, the rotation axis can be arranged near each lamp unit in the longitudinal direction of the lamp. It is possible to prevent the unit from being largely displaced in the desired direction from its original position. As a result, it is possible to effectively prevent deterioration of the design of the vehicle lamp.
　このように本開示によれば、複数の灯具ユニットを備えた車両用灯具において、複数の灯具ユニットが灯具前後方向に関して互いに異なる位置に配置されている場合であっても、その光軸調整によって車両用灯具の意匠性が損なわれてしまうのを効果的に抑制することができる。 As described above, according to the present disclosure, in a vehicle lamp having a plurality of lamp units, even when the plurality of lamp units are arranged at different positions in the longitudinal direction of the lamp, the vehicle can be It is possible to effectively prevent deterioration of the design of the lamp.
図１は、本開示の一実施形態に係る車両用灯具を示す正面図である。FIG. 1 is a front view showing a vehicle lamp according to one embodiment of the present disclosure. 図２は、図１のＩＩ－ＩＩ線における断面図である。FIG. 2 is a cross-sectional view taken along line II-II of FIG. 図３は、図１のＩＩＩ－ＩＩＩ線における断面図である。FIG. 3 is a cross-sectional view taken along line III-III of FIG. 図４は、図１のＩＶ部の詳細を説明する図である。FIG. 4 is a diagram explaining the details of the IV part of FIG. 図５は、図２のＶ部の詳細を説明する図である。FIG. 5 is a diagram for explaining the details of the V section in FIG. 図６は、車両用灯具の主要構成要素を示す斜視図である。FIG. 6 is a perspective view showing main components of the vehicle lamp. 図７は、図６のＶＩＩ部の詳細を説明する図である。FIG. 7 is a diagram explaining the details of the VII section in FIG. 図８は、主要構成要素の組付けの様子を示す図である。FIG. 8 is a diagram showing how the main components are assembled. 図９は、車両用灯具からの照射光によって形成される配光パターンを透視的に示す図である。FIG. 9 is a perspective view of a light distribution pattern formed by light emitted from a vehicle lamp. 図１０は、実施形態の作用を示す図である。FIG. 10 is a diagram showing the action of the embodiment. 図１１は、実施形態の比較例を示す図である。FIG. 11 is a diagram showing a comparative example of the embodiment; 図１２は、実施形態の第１変形例を示す図である。FIG. 12 is a diagram showing a first modification of the embodiment. 図１３は、実施形態の第２変形例を示す図である。FIG. 13 is a diagram showing a second modification of the embodiment. 図１４は、実施形態の第３変形例を示す図である。FIG. 14 is a diagram showing a third modification of the 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。 Embodiments of the present disclosure will be described below 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線断面図である。図３は図１のＩＩＩ－ＩＩＩ線断面図である。 FIG. 1 is a front view showing a vehicle lamp 10 according to one embodiment of the present disclosure. 2 is a cross-sectional view taken along line II--II of FIG. FIG. 3 is a cross-sectional view taken along line III--III of FIG.
　これらの図において、Ｘで示す方向が「灯具前方」であり、Ｙで示す方向が「ユニット前方」と直交する「左方向」（灯具正面視では「右方向」）であり、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 the "front of the lamp", the direction indicated by Y is the "left direction" ("right direction" when viewed from the front of the lamp) orthogonal to the "front of the unit", and the direction indicated by Z. is the "upward direction". The same applies to figures other than these.
　図１～３に示すように、本実施形態に係る車両用灯具１０は、車両の右前端部に装着されるロービーム照射用のヘッドランプとして構成されている。この車両用灯具１０には、ランプボディ１２とそ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、３つの灯具ユニット２０が左右方向（すなわち車幅方向）に並んだ状態で収容されている。 As shown in FIGS. 1 to 3, the vehicle lamp 10 according to the present embodiment is configured as a headlamp for low beam irradiation mounted on the right front end portion of a vehicle. In this vehicle lamp 10, three lamp units 20 are arranged in the left-right direction (that is, in the vehicle width direction) in a lamp chamber formed by a lamp body 12 and a transparent transparent cover 14 attached to the front end opening of the lamp body 12. are housed side by side.
　透光カバー１４は、透明の樹脂製部材で構成されており、その左側（すなわち車幅方向内側）から右側に向かって灯具後方側に傾斜して延びるように形成されている。この透光カバー１４において、３つの灯具ユニット２０からの照射光が透過する照射光透過領域１４Ａ以外の領域１４Ｂには遮光処理が施されている。遮光処理は、透光カバー１４の内面に有色塗装膜（例えば黒色塗装膜）１６を形成することによって行われている。照射光透過領域１４Ａは単一の横長矩形状領域として設定されており、領域１４Ｂは照射光透過領域１４Ａを全周にわたって囲む領域として設定されている。 The light-transmitting cover 14 is made of a transparent resin member, and is formed to extend from the left side (that is, the inner side in the vehicle width direction) toward the right side while being inclined toward the rear side of the lamp. In the light-transmitting cover 14, a light-shielding treatment is applied to a region 14B other than the irradiation light transmission region 14A through which the irradiation light from the three lamp units 20 is transmitted. The light shielding process is performed by forming a colored coating film (for example, a black coating film) 16 on the inner surface of the translucent cover 14 . The irradiation light transmission region 14A is set as a single oblong rectangular region, and the region 14B is set as a region surrounding the irradiation light transmission region 14A over the entire circumference.
　３つの灯具ユニット２０は、いずれも同様の構成を有するプロジェクタ型の灯具ユニットであって、灯具前後方向に関して互いに異なる位置に配置されている。具体的には、３つの灯具ユニット２０は同一水平面上に配置されており、かつ、透光カバー１４の形状に応じて右側に位置するものほど灯具後方側に配置されている。 The three lamp units 20 are all projector-type lamp units having the same configuration, and are arranged at different positions with respect to the front-rear direction of the lamp. Specifically, the three lamp units 20 are arranged on the same horizontal plane, and according to the shape of the light-transmitting cover 14, the one located on the right side is arranged on the rear side of the lamp.
　３つの灯具ユニット２０は、ユニット支持部材５２とユニット駆動部材５４とを備えた回動支持機構５０により、ランプボディ１２に対して上下方向および左右方向に回動可能に支持されている。なお、ここでいう上下方向および左右方向に回動可能とは、灯具ユニットの向きであって灯具ユニットによる光の照射方向が上下方向及び左右方向に変化するように動作可能であることを意味する。ユニット支持部材５２およびユニット駆動部材５４は、いずれも樹脂製部材で構成されている。 The three lamp units 20 are supported vertically and horizontally with respect to the lamp body 12 by a rotation support mechanism 50 having a unit support member 52 and a unit drive member 54 . It should be noted that the term “rotatable vertically and horizontally” as used herein means that the direction of the lighting unit, i.e., the direction of light emitted by the lighting unit, can be changed vertically and horizontally. . Both the unit supporting member 52 and the unit driving member 54 are made of resin.
　ユニット支持部材５２は、３つの灯具ユニット２０の各々を、灯具前後方向に関して互いに異なる位置において上下方向に回動可能に支持するように構成されている。具体的には、各灯具ユニット２０は、その灯具前後方向の略中央位置でかつその下端部において左右方向に水平に延びる回動軸線Ａｘ１を中心にして、ユニット支持部材５２に対して上下方向に回動し得るように構成されている。 The unit support member 52 is configured to support each of the three lamp units 20 so as to be vertically rotatable at positions different from each other in the longitudinal direction of the lamp. More specifically, each lamp unit 20 is arranged at a substantially center position in the front-rear direction of the lamp unit and at the lower end portion of the lamp unit 20 so as to vertically extend with respect to the unit support member 52 about a rotation axis Ax1 extending horizontally in the left-right direction. It is configured to be rotatable.
　ユニット駆動部材５４は、ユニット支持部材５２に支持された３つの灯具ユニット２０の各々と係合した状態で、これらを一括して上下方向に回動させるように構成されている。具体的には、ユニット駆動部材５４は、各灯具ユニット２０の回動軸線Ａｘ１の略真上の位置において各灯具ユニット２０と係合しており、この状態で灯具前後方向に移動（図３に示す矢印Ａ参照）することによって各灯具ユニット２０を回動軸線Ａｘ１まわりに回動（図３に示す矢印Ｂ参照）させるように構成されている。 The unit driving member 54 is configured to engage with each of the three lamp units 20 supported by the unit support member 52 and collectively rotate them in the vertical direction. Specifically, the unit driving member 54 engages with each lamp unit 20 at a position substantially directly above the rotation axis Ax1 of each lamp unit 20, and moves in the longitudinal direction of the lamp in this state (see FIG. 3). (see arrow A shown in FIG. 3) to rotate each lamp unit 20 around the rotation axis Ax1 (see arrow B shown in FIG. 3).
　ユニット支持部材５２は、ランプボディ１２の後壁部における右寄り下端部（灯具正面視では左寄り下端部）から灯具前方へ向けて延びるピボットピン６２と、ランプボディ１２の後壁部における左下端部から灯具前方へ向けて延びるエイミングスクリュウ６４とを介してランプボディ１２に支持されている。また、ユニット駆動部材５４は、ランプボディ１２の後壁部における右寄り上端部から灯具前方へ向けて延びるエイミングスクリュウ６６を介してランプボディ１２に支持されている。 The unit support member 52 includes a pivot pin 62 extending forward from the lower right end of the rear wall of the lamp body 12 (lower left end in the front view of the lamp), and a pivot pin 62 extending forward from the lower left end of the rear wall of the lamp body 12 . It is supported by the lamp body 12 via an aiming screw 64 extending forward of the lamp. The unit drive member 54 is supported by the lamp body 12 via an aiming screw 66 extending forward from the upper right end of the rear wall of the lamp body 12 toward the front of the lamp.
　ピボットピン６２は、その先端部が球状に形成されている。またピボットピン６２の基端部はランプボディ１２に固定支持されている。ユニット支持部材５２には、ピボットピン６２の先端部と係合するスフェリカルステップベアリング６８が設けられている。 The pivot pin 62 has a spherical tip. A proximal end portion of the pivot pin 62 is fixedly supported by the lamp body 12 . The unit support member 52 is provided with a spherical step bearing 68 that engages with the tip of the pivot pin 62 .
　エイミングスクリュウ６４は、その前半部がネジ部として形成されており、その基端部はランプボディ１２に対して回転可能に支持されている。ユニット支持部材５２には、エイミングスクリュウ６４のネジ部と螺合するエイミングナット７２が設けられている。 The aiming screw 64 has a front half formed as a threaded portion, and its base end is rotatably supported with respect to the lamp body 12 . The unit support member 52 is provided with an aiming nut 72 that is screwed with the threaded portion of the aiming screw 64 .
　エイミングスクリュウ６６は、その前半部がネジ部として形成されており、その基端部はランプボディ１２に装着されたレベリングアクチュエータ４０に連結されている。ユニット駆動部材５４には、エイミングスクリュウ６６のネジ部と螺合するエイミングナット７４が設けられている。 The aiming screw 66 has its front half formed as a threaded portion, and its base end is connected to the leveling actuator 40 attached to the lamp body 12 . The unit driving member 54 is provided with an aiming nut 74 that is screwed with the threaded portion of the aiming screw 66 .
　エイミングスクリュウ６６とエイミングナット７４との螺合位置は、ピボットピン６２とスフェリカルステップベアリング６８との係合位置の略真上に位置している。エイミングスクリュウ６４とエイミングナット７２との螺合位置は、ピボットピン６２とスフェリカルステップベアリング６８との係合位置に対して真横の位置よりも灯具前方側に位置している。 The screwing position of the aiming screw 66 and the aiming nut 74 is located substantially directly above the engagement position of the pivot pin 62 and the spherical step bearing 68 . The screwing position of the aiming screw 64 and the aiming nut 72 is located on the front side of the lamp from the position right beside the engaging position of the pivot pin 62 and the spherical step bearing 68 .
　３つの灯具ユニット２０は、ユニット支持部材５２およびユニット駆動部材５４と共に、略鉛直方向に延びる回動軸線Ａｘ２を中心にして、ランプボディ１２に対して左右方向に回動可能に支持されている。回転軸線Ａｘ２は、エイミングスクリュウ６６とエイミングナット７４との螺合位置とピボットピン６２とスフェリカルステップベアリング６８との係合位置とを結ぶようにして延びている。３つの灯具ユニット２０において、エイミングスクリュウ６４の回転操作によって左右方向の光軸調整が一括して行われる。 The three lamp units 20, together with the unit supporting member 52 and the unit driving member 54, are supported so as to be rotatable in the left-right direction with respect to the lamp body 12 about a rotation axis Ax2 extending in a substantially vertical direction. The rotation axis Ax2 extends so as to connect the screwed position of the aiming screw 66 and the aiming nut 74 and the engagement position of the pivot pin 62 and the spherical step bearing 68 . In the three lamp units 20, the optical axis adjustment in the horizontal direction is collectively performed by rotating the aiming screw 64. As shown in FIG.
　各灯具ユニット２０とユニット駆動部材５４との係合部には、その係合位置を灯具前後方向に移動（図３に示す矢印Ｃ参照）させることによって各灯具ユニット２０の上下方向の回動角度を微調整するための微調整機構８０が設けられている（詳細については後述する）。 The engagement portion between each lamp unit 20 and the unit drive member 54 is changed in the longitudinal direction of the lamp (see arrow C in FIG. 3) to move the engagement position (see arrow C shown in FIG. 3) to change the vertical rotation angle of each lamp unit 20 . A fine adjustment mechanism 80 is provided for fine adjustment of the (details will be described later).
　次に、各灯具ユニット２０の具体的な構成について説明する。 Next, a specific configuration of each lamp unit 20 will be described.
　図４は図１のＩＶ部詳細図であり、図５は図２のＶ部詳細図である。また、図６は、車両用灯具１０の主要構成要素を示す斜視図であり、図７は図６のＶＩＩ部詳細図である。 FIG. 4 is a detailed view of part IV in FIG. 1, and FIG. 5 is a detailed view of part V in FIG. 6 is a perspective view showing main components of the vehicle lamp 10, and FIG. 7 is a detailed view of the VII section in FIG.
　図４～７にも示すように、灯具ユニット２０は、車両前後方向に延びる光軸Ａｘを有する投影レンズ２２と、この投影レンズ２２の後側焦点Ｆよりも灯具後方側に配置された光源としての発光素子２４と、この発光素子２４を上方側から覆うように配置され、この発光素子２４からの光を投影レンズ２２へ向けて反射させるリフレクタ２６とを備える。 As shown in FIGS. 4 to 7, the lamp unit 20 includes a projection lens 22 having an optical axis Ax extending in the longitudinal direction of the vehicle, and a light source arranged behind the rear focal point F of the projection lens 22. and a reflector 26 arranged to cover the light emitting element 24 from above and reflecting the light from the light emitting element 24 toward the projection lens 22 .
　投影レンズ２２は、前面が凸面状に形成された平凸非球面レンズとして構成されており、灯具正面視において横長矩形状の外形形状を有している。 The projection lens 22 is configured as a plano-convex aspherical lens with a convex front surface, and has a horizontally long rectangular outer shape when viewed from the front of the lamp.
　発光素子２４は、横長矩形状の発光面を有する白色発光ダイオードで構成されている。 The light emitting element 24 is composed of a white light emitting diode having a horizontally long rectangular light emitting surface.
　リフレクタ２６は、発光素子２４の発光中心を第１焦点とする略楕円面状の反射面を有しており、この反射面において発光素子２４からの出射光を灯具前方へ向けて収束光として反射させるようになっている。 The reflector 26 has a substantially ellipsoidal reflecting surface with the light emission center of the light emitting element 24 as the first focus. It is designed to let
　発光素子２４およびリフレクタ２６は、アルミダイカスト製のベース部材３０の上面に支持されており、投影レンズ２２もベース部材３０に支持されている。 The light emitting element 24 and the reflector 26 are supported on the upper surface of an aluminum die-cast base member 30, and the projection lens 22 is also supported by the base member 30.
　ベース部材３０には、ロービーム用配光パターンのカットオフラインを形成するためにリフレクタ２６からの反射光の一部を投影レンズ２２へ向けて上向きに反射させる上向き反射面３０ａが形成されている。この上向き反射面３０ａの前端縁３０ａ１は、後側焦点Ｆから左右両側へ向けて灯具前方側に湾曲して延びるように形成されている。 The base member 30 is formed with an upward reflecting surface 30a that reflects part of the reflected light from the reflector 26 upward toward the projection lens 22 in order to form the cutoff line of the light distribution pattern for low beam. A front edge 30a1 of the upward reflecting surface 30a is formed so as to curve and extend from the rear focal point F toward the left and right sides toward the front side of the lamp.
　ベース部材３０は、複数の放熱フィン３０ｂを備えており、これにより発光素子２４で発生した熱を効率良く放散させるヒートシンクとして機能するようになっている。複数の放熱フィン３０ｂは、左右方向に等間隔をおいて配置された状態で、いずれも鉛直下方へ向けて延びるように形成されている。 The base member 30 is provided with a plurality of heat dissipation fins 30b, and functions as a heat sink for efficiently dissipating the heat generated by the light emitting element 24. The plurality of heat radiating fins 30b are arranged at equal intervals in the left-right direction and are formed so as to extend vertically downward.
　ベース部材３０の前端部には、光軸Ａｘと直交する鉛直面に沿って横長矩形状に延びるフレーム部３０ｃが形成されており、このフレーム部３０ｃにおいて投影レンズ２２を灯具後方側から固定支持するようになっている。 At the front end of the base member 30, a frame portion 30c extending in a horizontally long rectangular shape along a vertical plane perpendicular to the optical axis Ax is formed. It's like
　ベース部材３０の左右両側面の下端部には、左右両方向へ向けて円柱状に突出する１対の水平ピン３０ｄが形成されている。ベース部材３０は、これら左右１対の水平ピン３０ｄがユニット支持部材５２と係合することによって回動軸線Ａｘ１まわりに回動し得る構成となっている。 A pair of horizontal pins 30d are formed at the lower ends of the left and right side surfaces of the base member 30 so as to protrude in both the left and right directions. The base member 30 is configured to be rotatable about the rotation axis Ax1 by engaging the pair of left and right horizontal pins 30d with the unit support member 52. As shown in FIG.
　ベース部材３０における上面の右端部には、鉛直上方へ向けて延びる鉛直ブラケット３０ｅが形成されている。この鉛直ブラケット３０ｅは、灯具前後方向に関して右側の水平ピン３０ｄと同じ位置に形成されており、その上端部にはアジャスティングナット８２が設けられている。 A vertical bracket 30e extending vertically upward is formed on the right end of the upper surface of the base member 30. As shown in FIG. The vertical bracket 30e is formed at the same position as the right horizontal pin 30d in the longitudinal direction of the lamp, and an adjusting nut 82 is provided at the upper end thereof.
　ユニット駆動部材５４には、３つの灯具ユニット２０の各々と対応する位置に、灯具前方へ向けて延びるアジャスティングスクリュウ８４が配置されている。各アジャスティングスクリュウ８４は、その前半部がネジ部として形成されており、その基端部がユニット駆動部材５４に回転可能に支持されている。そして、各アジャスティングスクリュウ８４は、そのネジ部において各灯具ユニット２０のアジャスティングナット８２と螺合している。 On the unit drive member 54, adjusting screws 84 extending forward of the lamp are arranged at positions corresponding to the three lamp units 20, respectively. Each adjusting screw 84 has a front half formed as a threaded portion, and a proximal end thereof is rotatably supported by the unit driving member 54 . Each adjusting screw 84 is screwed with the adjusting nut 82 of each lamp unit 20 at its threaded portion.
　微調整機構８０は、アジャスティングナット８２およびアジャスティングスクリュウ８４によって構成されている。 The fine adjustment mechanism 80 is composed of an adjusting nut 82 and an adjusting screw 84.
　ユニット支持部材５２は、各灯具ユニット２０のベース部材３０を灯具後方側および左右両側から囲むように形成されている。ユニット支持部材５２は、灯具前方へ向けて延びる左右１対のアーム部５２Ａ、５２Ｂにおいて、ベース部材３０を回動軸線Ａｘ１まわりに回動可能に支持するように構成されている。 The unit support member 52 is formed so as to surround the base member 30 of each lamp unit 20 from the lamp rear side and both left and right sides. The unit support member 52 is configured to support the base member 30 so as to be rotatable about the rotation axis Ax1 at a pair of left and right arm portions 52A and 52B extending toward the front of the lamp.
　右側に位置するアーム部５２Ａは、左右方向に間隔をおいて配置された１対の鉛直板状部５２Ａ１、５２Ａ２を備えている。各鉛直板状部５２Ａ１、５２Ａ２は、灯具側面視において灯具前方へ向けて楔状に延びるように形成されており、その先端部においてベース部材３０の右側の水平ピン３０ｄと係合するように構成されている。外側の鉛直板状部５２Ａ１は、その先端部が平面視において灯具前方へ向けて楔状に突出して延びるように形成されている。鉛直板状部５２Ａ１の内側面には右側の水平ピン３０ｄに対して灯具前方側から係合する係合凹部５２Ａ１ａが形成されている。内側の鉛直板状部５２Ａ２は、その前端面が鉛直板状部５２Ａ１の係合凹部５２Ａ１ａの後端位置よりも僅かに灯具後方側に位置している。鉛直板状部５２Ａ２の前端面には右側の水平ピン３０ｄに対して灯具後方側から係合する係合凹部５２Ａ２ａが形成されている。各係合凹部５２Ａ１ａ、５２Ａ２ａは、灯具側面視において略半円状に凹んだ凹部として形成されている。 The arm portion 52A located on the right side has a pair of vertical plate-like portions 52A1 and 52A2 spaced apart in the left-right direction. Each of the vertical plate-shaped portions 52A1 and 52A2 is formed to extend in a wedge shape toward the front of the lamp when viewed from the side of the lamp, and is configured to engage with the horizontal pin 30d on the right side of the base member 30 at its distal end. ing. The outer vertical plate-shaped portion 52A1 is formed so that the tip thereof protrudes and extends in a wedge shape toward the front of the lamp in plan view. An engagement recess 52A1a is formed on the inner surface of the vertical plate-shaped portion 52A1 to engage with the right horizontal pin 30d from the front side of the lamp. The inner vertical plate-like portion 52A2 has its front end face positioned slightly to the rear of the lamp from the rear end position of the engaging recess 52A1a of the vertical plate-like portion 52A1. An engagement recess 52A2a is formed in the front end surface of the vertical plate-shaped portion 52A2 to engage with the right horizontal pin 30d from the rear side of the lamp. Each of the engaging recesses 52A1a and 52A2a is formed as a recess recessed in a substantially semicircular shape when viewed from the side of the lamp.
　左側に位置するアーム部５２Ｂは、左右方向に間隔をおいて配置された１対の鉛直板状部５２Ｂ１、５２Ｂ２を備えている。各鉛直板状部５２Ｂ１、５２Ｂ２も、灯具側面視において灯具前方へ向けて楔状に延びるように形成されており、その先端部においてベース部材３０の左側の水平ピン３０ｄと係合するように構成されている。内側の鉛直板状部５２Ｂ２には、水平ピン３０ｄの外径よりも僅かに大きい内径を有する円形貫通孔５２Ｂ２ａが形成されている。 The arm portion 52B located on the left side has a pair of vertical plate-like portions 52B1 and 52B2 spaced apart in the left-right direction. Each of the vertical plate-shaped portions 52B1 and 52B2 is also formed to extend in a wedge shape toward the front of the lamp when viewed from the side of the lamp, and is configured to engage with the horizontal pin 30d on the left side of the base member 30 at its distal end. ing. A circular through hole 52B2a having an inner diameter slightly larger than the outer diameter of the horizontal pin 30d is formed in the inner vertical plate portion 52B2.
　左側の水平ピン３０ｄがユニット支持部材５２のアーム部５２Ｂにおける鉛直板状部５２Ｂ２の円形貫通孔５２Ｂ２ａに挿入されている。右側の水平ピン３０ｄはユニット支持部材５２のアーム部５２Ａにおける鉛直板状部５２Ａ１の係合凹部５２Ａ１ａおよび鉛直板状部５２Ａ２の係合凹部５２Ａ２ａと係合する。これにより、ベース部材３０は、ユニット支持部材５２に対して回動軸線Ａｘ１まわりに回動可能に支持されている。 The left horizontal pin 30d is inserted into the circular through hole 52B2a of the vertical plate portion 52B2 of the arm portion 52B of the unit support member 52. The right horizontal pin 30d engages with the engaging recess 52A1a of the vertical plate-like portion 52A1 and the engaging recess 52A2a of the vertical plate-like portion 52A2 of the arm portion 52A of the unit support member 52. As shown in FIG. As a result, the base member 30 is rotatably supported by the unit support member 52 about the rotation axis Ax1.
　図８は、ベース部材３０がユニット支持部材５２に組み付けられる際の様子を示す、図５と同じ方向から見た図である。 FIG. 8 is a view from the same direction as in FIG. 5, showing how the base member 30 is assembled to the unit support member 52. FIG.
　図８に示すように、左側の水平ピン３０ｄは鉛直板状部５２Ｂ２の円形貫通孔５２Ｂ２ａに挿入されている。右側の水平ピン３０ｄは灯具前方側から鉛直板状部５２Ａ１の先端部に当接している。鉛直板状部５２Ａ１を撓み変形させると、ベース部材３０は、係合凹部５２Ａ１ａおよび鉛直板状部５２Ａ２の係合凹部５２Ａ２ａと係合するように構成されている。この係合が完了した後は、左側の水平ピン３０ｄの先端面が鉛直板状部５２Ｂ１に当接するとともに右側の水平ピン３０ｄの先端面が鉛直板状部５２Ａ１に当接する。これによりベース部材３０が左右方向に関しても位置決めされる。 As shown in FIG. 8, the left horizontal pin 30d is inserted into the circular through hole 52B2a of the vertical plate portion 52B2. The right horizontal pin 30d is in contact with the front end of the vertical plate portion 52A1 from the front side of the lamp. The base member 30 is configured to engage with the engagement recess 52A1a and the engagement recess 52A2a of the vertical plate-shaped portion 52A2 when the vertical plate-shaped portion 52A1 is flexurally deformed. After this engagement is completed, the tip surface of the left horizontal pin 30d contacts the vertical plate-shaped portion 52B1 and the tip surface of the right horizontal pin 30d contacts the vertical plate-shaped portion 52A1. As a result, the base member 30 is also positioned in the left-right direction.
　図９は、車両用灯具１０からの照射光によって車両前方２５ｍの位置に配置された仮想鉛直スクリーン上に形成されるロービーム用配光パターンＰＬを透視的に示す図である。 FIG. 9 is a view perspectively showing a low-beam light distribution pattern PL formed on a virtual vertical screen arranged at a position 25 m in front of the vehicle by the light emitted from the vehicle lamp 10. FIG.
　ロービーム用配光パターンＰＬは、左配光のロービーム用配光パターンであって、その上端縁に左右段違いのカットオフラインＣＬ１、ＣＬ２を有している。このカットオフラインＣＬ１、ＣＬ２は、灯具正面方向の消点であるＨ－Ｖを鉛直方向に通るＶ－Ｖ線を境にして左右段違いで水平方向に延びている。Ｖ－Ｖ線よりも右側の対向車線側部分が下段カットオフラインＣＬ１として形成されるとともに、Ｖ－Ｖ線よりも左側の自車線側部分が、この下段カットオフラインＣＬ１から傾斜部を介して段上がりになった上段カットオフラインＣＬ２として形成されている。 The low-beam light distribution pattern PL is a left-handed low-beam light distribution pattern, and has cutoff lines CL1 and CL2 that are uneven on the left and right at the upper edge thereof. The cutoff lines CL1 and CL2 extend in the horizontal direction in a stepped manner on the left and right sides of the line VV passing vertically through the vanishing point HV in the front direction of the lamp. The opposite lane side portion on the right side of the VV line is formed as a lower cutoff line CL1, and the own lane side portion on the left side of the VV line rises from the lower cutoff line CL1 via an inclined portion. is formed as an upper cutoff line CL2.
　ロービーム用配光パターンＰＬにおいて、下段カットオフラインＣＬ１とＶ－Ｖ線との交点であるエルボ点Ｅは、Ｈ－Ｖの０．５～０．６°程度下方に位置している。 In the low-beam light distribution pattern PL, the elbow point E, which is the intersection of the lower cutoff line CL1 and the line VV, is located below HV by about 0.5 to 0.6°.
　ロービーム用配光パターンＰＬは、３つの灯具ユニット２０からの照射光によって形成される３つの配光パターンＰＬоを重畳させた合成配光パターンとして形成されている。 The low-beam light distribution pattern PL is formed as a composite light distribution pattern in which three light distribution patterns PL? formed by the light emitted from the three lamp units 20 are superimposed.
　３つの灯具ユニット２０はいずれも同様の構成を有しているので、３つの配光パターンＰＬоはいずれも同様の配光パターンとして形成される。各灯具ユニット２０は微調整機構８０によって上下方向の回動角度が微調整され得る構成となっているので、この微調整が行われることによって各配光パターンＰＬоはそのカットオフラインの上下位置が揃えられ、これによりロービーム用配光パターンＰＬのカットオフラインＣＬ１、ＣＬ２が鮮明に形成されるようになっている。 Since all three lamp units 20 have the same configuration, all three light distribution patterns PL? are formed as similar light distribution patterns. Since each lamp unit 20 is configured such that the vertical rotation angle can be finely adjusted by the fine adjustment mechanism 80, the vertical position of the cutoff line of each light distribution pattern PL? is aligned by this fine adjustment. As a result, the cutoff lines CL1 and CL2 of the low-beam light distribution pattern PL are clearly formed.
　図１０は、車両用灯具１０において、その灯具ユニット２０の上下方向の光軸調整を行ったときの様子を示す、図３と同じ方向から見た図である。 FIG. 10 is a view of the vehicle lamp 10 when the optical axis of the lamp unit 20 is adjusted in the vertical direction, viewed from the same direction as in FIG.
　図１０においては、灯具ユニット２０が基準位置にある状態を実線で示している。灯具ユニット２０が基準位置から上向きに最大角度まで回動したときの状態を２点鎖線で示している。灯具ユニット２０が基準位置から下向きに最大角度まで回動したときの状態を破線で示している。なお、図１０においては最大角度が±４°に設定されている場合の状態を示している。 In FIG. 10, the solid line indicates the state where the lamp unit 20 is at the reference position. A two-dot chain line indicates the state when the lamp unit 20 is rotated upward from the reference position to the maximum angle. A dashed line indicates the state when the lighting unit 20 is rotated downward from the reference position to the maximum angle. Note that FIG. 10 shows a state in which the maximum angle is set to ±4°.
　ここで灯具ユニット２０が基準位置にある状態とは、その光軸Ａｘが水平方向に向いている状態を意味するものであって、レベリングアクチュエータ４０が作動していない状態で微調整機構８０によって灯具ユニット２０の回動軸線Ａｘ１まわりの回動角度を微調整することによって実現される。 Here, the state in which the lighting unit 20 is at the reference position means the state in which the optical axis Ax of the lighting unit 20 is oriented in the horizontal direction. This is achieved by finely adjusting the rotation angle of the unit 20 about the rotation axis Ax1.
　、レベリングアクチュエータ４０を作動させてユニット駆動部材５４を灯具後方側に移動させると、灯具ユニット２０はユニット支持部材５２に対して回動軸線Ａｘ１まわりに上向きに回動し、一方、ユニット駆動部材５４を灯具前方側に移動させると灯具ユニット２０は下向きに回動する。 When the leveling actuator 40 is operated to move the unit drive member 54 toward the rear side of the lamp, the lamp unit 20 rotates upward about the rotation axis Ax1 with respect to the unit support member 52, while the unit drive member 54 is moved to the front side of the lamp, the lamp unit 20 rotates downward.
　図１０においては、灯具ユニット２０が基準位置にある状態で、投影レンズ２２からの出射光が透光カバー１４を透過し得る最大範囲をハッチングで示している。また、灯具ユニット２０が基準位置から上向きまで回動したときに投影レンズ２２からの出射光が透光カバー１４を透過し得る最大範囲を２点鎖線で示している。灯具ユニット２０が基準位置から下向きに最大角度まで回動したときに投影レンズ２２からの出射光が透光カバー１４を透過し得る最大範囲を破線で示している。灯具ユニット２０が基準位置から上向きまで回動したときと下向きに最大角度まで回動したときとにおいて、出射光が透過する範囲の最大上下幅をＨで示している。 In FIG. 10, hatching indicates the maximum range in which the light emitted from the projection lens 22 can pass through the translucent cover 14 when the lamp unit 20 is in the reference position. The two-dot chain line indicates the maximum range in which the light emitted from the projection lens 22 can pass through the translucent cover 14 when the lamp unit 20 is rotated upward from the reference position. The dashed line indicates the maximum range in which the light emitted from the projection lens 22 can pass through the translucent cover 14 when the lamp unit 20 is rotated downward from the reference position to the maximum angle. H indicates the maximum vertical width of the range through which emitted light is transmitted when the lamp unit 20 is rotated upward from the reference position and when it is rotated downward to the maximum angle.
　図２に示すように、３つの灯具ユニット２０は透光カバー１４との間隔が互いに略同じとなるように配置されている。また、各灯具ユニット２０において回動軸線Ａｘ１の位置は同一である。したがって、最大上下幅Ｈも各灯具ユニット２０に関して略同じ値となる。 As shown in FIG. 2, the three lamp units 20 are arranged so that the distances between them and the translucent cover 14 are substantially the same. Further, the position of the rotation axis Ax1 is the same in each lamp unit 20 . Therefore, the maximum vertical width H of each lamp unit 20 also has substantially the same value.
　透光カバー１４の照射光透過領域１４Ａの上下幅は、最大上下幅Ｈよりも僅かに大きい値となるように設定されている。 The vertical width of the irradiation light transmitting region 14A of the light transmitting cover 14 is set to be slightly larger than the maximum vertical width H.
　図１１は、本実施形態の比較例について、図１０と同じ方向から示した図である。 FIG. 11 is a diagram showing a comparative example of this embodiment from the same direction as FIG.
　図１１に示すように、本比較例に係る車両用灯具１０´も、ランプボディ１２´と透光カバー１４´とで形成される灯室内に、３つの灯具ユニット２０´（図１１では単一の灯具ユニット２０´のみを図示）が上下方向に回動可能に収容された構成となっているが、これらを上下方向に回動させるための回動支持機構５０´の構成が本実施形態の場合と異なっている。 As shown in FIG. 11, the vehicle lamp 10' according to this comparative example also includes three lamp units 20' (single unit in FIG. 11) in a lamp chamber formed by a lamp body 12' and a translucent cover 14' (only the lamp unit 20' shown in the figure) is accommodated so as to be vertically rotatable. different from the case.
　本比較例の回動支持機構５０´は、本実施形態のユニット支持部材５２およびユニット駆動部材５４を単一の部材として一体化させたブラケット５２´を備えた構成となっている。ブラケット５２´は、本実施形態の場合と同様、スフェリカルステップベアリング６８´およびエイミングナット７２´を介してランプボディ１２´に支持されるとともにピボットピン６２´およびエイミングスクリュウ６４´を介してランプボディ１２´に支持されており、かつ、エイミングスクリュウ６４´はレベリングアクチュエータ４０´に連結されている。 The rotation support mechanism 50' of this comparative example has a configuration including a bracket 52' in which the unit support member 52 and the unit drive member 54 of this embodiment are integrated as a single member. The bracket 52' is supported by the lamp body 12' via a spherical step bearing 68' and an aiming nut 72', and is attached to the lamp body 12' via a pivot pin 62' and an aiming screw 64', as in the present embodiment. ' and the aiming screw 64' is connected to the leveling actuator 40'.
　図１１においても、図１０と同様、灯具ユニット２０´が基準位置にある状態を実線で示している。灯具ユニット２０´が基準位置から上向きに最大角度まで回動したときの状態を２点鎖線で示している。灯具ユニット２０´が基準位置から下向きに最大角度まで回動したときの状態を破線で示している。なお、図１１においても最大角度が±４°に設定されている場合の状態を示している。 Also in FIG. 11, as in FIG. 10, the state where the lamp unit 20' is at the reference position is indicated by a solid line. A two-dot chain line indicates the state when the lighting unit 20' is rotated upward from the reference position to the maximum angle. The dashed line indicates the state when the lamp unit 20' is rotated downward from the reference position to the maximum angle. Note that FIG. 11 also shows a state in which the maximum angle is set to ±4°.
　本比較例においては、レベリングアクチュエータ４０´が作動すると、灯具ユニット２０´はブラケット５２´と共に、ピボットピン６２´とスフェリカルステップベアリング６８´との係合位置を通るようにして水平方向に延びる回動軸線Ａｘ１´まわりに回動する。 In this comparative example, when the leveling actuator 40' is actuated, the lighting unit 20' rotates horizontally along with the bracket 52' so as to pass through the engagement position between the pivot pin 62' and the spherical step bearing 68'. It rotates around the axis Ax1'.
　したがって、灯具ユニット２０´が基準位置から上向きおよび下向きに最大角度まで回動したときに投影レンズ２２´からの出射光が透光カバー１４´を透過し得る最大上下幅Ｈ´は、図１０に示す最大上下幅Ｈよりもかなり大きくなる。このため、透光カバー１４´の照射光透過領域１４Ａ´の上下幅も、図１０に示す透光カバー１４の照射光透過領域１４Ａの上下幅よりもかなり大きくなる。 Therefore, the maximum vertical width H' that allows the light emitted from the projection lens 22' to pass through the translucent cover 14' when the lamp unit 20' is rotated upward and downward from the reference position to the maximum angle is shown in FIG. It is much larger than the maximum vertical width H shown. Therefore, the vertical width of the irradiation light transmission region 14A' of the light transmission cover 14' is also considerably larger than the vertical width of the irradiation light transmission region 14A of the light transmission cover 14 shown in FIG.
　図１１に示す灯具ユニット２０よりも灯具後方側に位置する灯具ユニット２０に関しては、その最大上下幅が最大上下幅Ｈ´よりも小さくなるが、図１１に示す灯具ユニット２０よりも灯具前方側に位置する灯具ユニット２０に関しては、その最大上下幅が最大上下幅Ｈ´よりもさらに大きくなる。 11, the maximum vertical width of the lighting unit 20 located on the rear side of the lighting unit 20 shown in FIG. The maximum vertical width of the lamp unit 20 located is even larger than the maximum vertical width H'.
　次に、本実施形態の作用効果について説明する。 Next, the effects of this embodiment will be described.
　本実施形態に係る車両用灯具１０は、灯具前後方向に関して互いに異なる位置に配置された３つの灯具ユニット２０が、回動支持機構５０によって上下方向（所要方向）に回動し得るように構成されている、回動支持機構５０は、３つの灯具ユニット２０の各々を灯具前後方向に関して互いに異なる位置において上下方向に回動可能に支持するように構成されたユニット支持部材５２と、ユニット支持部材５２に支持された３つの灯具ユニット２０の各々と係合した状態で３つの灯具ユニット２０を一括して上下方向に回動させるように構成されたユニット駆動部材５４とを備えている。 The vehicular lamp 10 according to the present embodiment is configured such that three lamp units 20 arranged at different positions in the longitudinal direction of the lamp can be rotated vertically (in a desired direction) by a rotation support mechanism 50 . The rotary support mechanism 50 includes a unit support member 52 configured to support each of the three lamp units 20 so as to be rotatable in the vertical direction at positions different from each other in the longitudinal direction of the lamp, and a unit support member 52. and a unit driving member 54 configured to collectively rotate the three lamp units 20 in the vertical direction while being engaged with each of the three lamp units 20 supported by.
　このため、３つの灯具ユニット２０の各々が上下方向に回動する際の回動軸線Ａｘ１を、灯具前後方向に関して各灯具ユニット２０の近くに配置することができるので、上下方向の光軸調整を行ったときに各灯具ユニット２０が元の位置から上下方向に大きく変位してしまわないようにすることができる。これにより車両用灯具１０の意匠性が損なわれてしまうのを効果的に抑制することができる。 Therefore, the rotation axis Ax1 when each of the three lamp units 20 rotates in the vertical direction can be arranged near each lamp unit 20 in the longitudinal direction of the lamp. It is possible to prevent each lamp unit 20 from being largely displaced in the vertical direction from its original position when it is moved. As a result, it is possible to effectively prevent deterioration of the design of the vehicle lamp 10 .
　このように本実施形態によれば、３つの灯具ユニット２０を備えた車両用灯具１０において、３つの灯具ユニット２０が灯具前後方向に関して互いに異なる位置に配置されているにもかかわらず、３つの灯具ユニット２０の光軸調整によって車両用灯具１０の意匠性が損なわれてしまうのを効果的に抑制することができる。 As described above, according to the present embodiment, in the vehicle lamp 10 having the three lamp units 20, although the three lamp units 20 are arranged at different positions in the longitudinal direction of the lamp, the three lamps It is possible to effectively prevent deterioration of the design of the vehicle lamp 10 due to the optical axis adjustment of the unit 20 .
　本実施形態においては、各灯具ユニット２０とユニット駆動部材５４との係合部に、各灯具ユニットの上下方向の回動角度を微調整するための微調整機構８０が設けられているので、３つの灯具ユニット２０相互間における上下方向の光軸ズレを容易に解消するこができる。そしてこれにより、車両用灯具１０からの照射光によって形成されるロービーム用配光パターンＰＬのカットオフラインＣＬ１、ＣＬ２が鮮明に形成されるようにすることが容易に可能となる。 In this embodiment, the engaging portion between each lamp unit 20 and the unit drive member 54 is provided with a fine adjustment mechanism 80 for finely adjusting the vertical rotation angle of each lamp unit. It is possible to easily eliminate vertical optical axis misalignment between the two lamp units 20 . Accordingly, it is possible to easily form the cutoff lines CL1 and CL2 of the low-beam light distribution pattern PL formed by the light emitted from the vehicle lamp 10 clearly.
　また本実施形態においては、回動支持機構５０が３つの灯具ユニット２０をランプボディ１２に対して上下方向のみならず左右方向（所要方向と直交する方向）にも回動させ得る構成となっているので、光軸調整の自由度を高めることができる。本実施形態においては、上下方向の回動中心となる回動軸線Ａｘ１が灯具前後方向と直交する方向に延びている。 In this embodiment, the rotation support mechanism 50 is configured to rotate the three lamp units 20 with respect to the lamp body 12 not only in the vertical direction but also in the horizontal direction (direction orthogonal to the required direction). Therefore, the degree of freedom of optical axis adjustment can be increased. In this embodiment, the rotation axis Ax1, which is the center of rotation in the vertical direction, extends in a direction perpendicular to the longitudinal direction of the lamp.
　図１１に示す比較例において、３つの灯具ユニット２０´を上下方向に回動させる際の回動軸線Ａｘ１´が、灯具前後方向と直交する左右方向ではなく斜め方向（例えば図２においてピボットピン６２とスフェリカルステップベアリング６８との係合位置とエイミングスクリュウ６４とエイミングナット７２との螺合位置とを結ぶ方向）に延びている場合には、上下方向の光軸調整を行ったとき各灯具ユニット２０´は灯具前後方向に延びる鉛直面に対して傾斜した鉛直面に沿って回動する。これにより、ロービーム用配光パターンＰＬのカットオフラインＣＬ１、ＣＬ２は水平方向に延びる状態から傾斜してしまう。 In the comparative example shown in FIG. 11, the rotation axis Ax1' for vertically rotating the three lamp units 20' is not in the horizontal direction perpendicular to the longitudinal direction of the lamp but in an oblique direction (for example, the pivot pin 62 in FIG. 2). and the engaging position of the spherical step bearing 68 and the screwing position of the aiming screw 64 and aiming nut 72), when the optical axis is adjusted in the vertical direction, each lamp unit 20 ' rotates along a vertical plane inclined with respect to the vertical plane extending in the longitudinal direction of the lamp. As a result, the cutoff lines CL1 and CL2 of the low-beam light distribution pattern PL incline from the horizontally extending state.
　これに対し本実施形態においては、回動軸線Ａｘ１が灯具前後方向と直交する左右方向に延びているので、上下方向の光軸調整を行ったとき各灯具ユニット２０は灯具前後方向に延びる鉛直面に沿って回動する。これによりロービーム用配光パターンＰＬのカットオフラインＣＬ１、ＣＬ２は水平方向に延びる状態に維持される。 On the other hand, in this embodiment, since the rotation axis Ax1 extends in the left-right direction perpendicular to the front-rear direction of the lamp, each lamp unit 20 extends in the vertical plane extending in the front-rear direction of the lamp when the optical axis is adjusted in the vertical direction. Rotate along. As a result, the cutoff lines CL1 and CL2 of the low-beam light distribution pattern PL are maintained to extend in the horizontal direction.
　本実施形態においては、ランプボディ１２にレベリングアクチュエータ４０が設けられており、レベリングアクチュエータ４０に対してユニット駆動部材５４が連結されている。これにより、回動支持機構５０としてレベリング機能を備えたものとすることができる。 In this embodiment, the lamp body 12 is provided with a leveling actuator 40 and the unit driving member 54 is connected to the leveling actuator 40 . As a result, the rotation support mechanism 50 can have a leveling function.
　本実施形態の透光カバー１４は、３つの灯具ユニット２０からの照射光が透過する照射光透過領域１４Ａに対してその上下方向の両側に位置する領域１４Ｂに遮光処理が施されている。このため、照射光透過領域１４Ａが横長の帯状に形成されるようにすることができ、車両用灯具１０の意匠性を高めることができる。また、本実施形態においては、上下方向の光軸調整を行っても各灯具ユニット２０の上下方向の変位量が大きくならないので、照射光透過領域１４Ａの上下方向の幅を最小限に抑えることができる。これにより、車両用灯具１０の意匠性を一層高めることができる。 In the light-transmitting cover 14 of the present embodiment, light-shielding processing is performed on regions 14B located on both sides in the vertical direction of the irradiation light transmission region 14A through which the irradiation light from the three lamp units 20 is transmitted. Therefore, the irradiation light transmitting region 14A can be formed in a horizontally long belt shape, and the design of the vehicle lamp 10 can be enhanced. In addition, in this embodiment, even if the optical axis is adjusted in the vertical direction, the amount of vertical displacement of each lamp unit 20 does not increase. can. Thereby, the designability of the vehicle lamp 10 can be further enhanced.
　本実施形態においては、各灯具ユニット２０のユニット支持部材５２への組付けは、次のように行われる。まず、ベース部材３０に形成された左側の水平ピン３０ｄをユニット支持部材５２の鉛直板状部５２Ｂ２に形成された円形貫通孔５２Ｂ２ａに挿入する。その後、ベース部材３０に形成された右側の水平ピン３０ｄを灯具前方側から鉛直板状部５２Ａ１の先端部に当接させる。次に、鉛直板状部５２Ａ１を撓み変形させた後、その係合凹部５２Ａ１ａおよび鉛直板状部５２Ａ２の係合凹部５２Ａ２ａと係合させる。このように、灯具ユニット２０のユニット支持部材５２への組付作業の効率を高めることができる。 In this embodiment, each lamp unit 20 is assembled to the unit support member 52 as follows. First, the left horizontal pin 30d formed in the base member 30 is inserted into the circular through hole 52B2a formed in the vertical plate portion 52B2 of the unit support member 52. As shown in FIG. After that, the right horizontal pin 30d formed on the base member 30 is brought into contact with the front end of the vertical plate portion 52A1 from the front side of the lamp. Next, after the vertical plate-like portion 52A1 is bent and deformed, it is engaged with the engagement recess 52A1a and the engagement recess 52A2a of the vertical plate-like portion 52A2. In this way, the efficiency of the assembly work of the lamp unit 20 to the unit support member 52 can be enhanced.
　実施形態においては、３つの灯具ユニット２０が、同一水平面上において左右方向に並んだ状態で配置されているものとして説明したが、これ以外の状態で配置された構成とすることも可能である。 In the embodiment, the three lamp units 20 are arranged side by side in the horizontal direction on the same horizontal plane, but it is also possible to arrange them in other states.
　実施形態においては、３つの灯具ユニット２０が、いずれも同様の配光パターンＰＬоを形成する構成となっているものとして説明したが、互いに異なる配光パターンを形成する構成とすることも可能である。その際、一部の灯具ユニット２０からの照射光によってハイビーム用配光パターン等を形成する構成とすることも可能である。 In the embodiment, all three lamp units 20 are configured to form the same light distribution pattern PL. However, it is also possible to configure them to form different light distribution patterns. . In this case, it is also possible to adopt a configuration in which a high-beam light distribution pattern or the like is formed by light emitted from some of the lamp units 20 .
　実施形態においては、各灯具ユニット２０が、リフレクタ２６を備えたプロジェクタ型の灯具ユニットであるものとして説明したが、リフレクタ２６を備えていないプロジェクタ型の灯具ユニットやパラボラ型の灯具ユニット等を採用することも可能である。 In the embodiment, each lamp unit 20 has been described as a projector-type lamp unit having a reflector 26. However, a projector-type lamp unit, a parabola-type lamp unit, or the like without a reflector 26 may be used. is also possible.
　実施形態においては、車両用灯具１０が３つの灯具ユニット２０を備えているものとして説明したが、２つ以下あるいは４つ以上の灯具ユニット２０を備えた構成とすることも可能である。 In the embodiment, the vehicle lamp 10 has been described as having three lamp units 20, but it is also possible to have a configuration with two or less or four or more lamp units 20.
　実施形態においては、ユニット駆動部材５４がエイミングスクリュウ６６を介してレベリングアクチュエータ４０に連結されているものとして説明したが、エイミングスクリュウ６６が直接ランプボディ１２に回転可能に支持された構成とすることも可能である。 In the embodiment, the unit driving member 54 is connected to the leveling actuator 40 via the aiming screw 66, but the aiming screw 66 may be directly rotatably supported by the lamp body 12. It is possible.
　実施形態においては、３つの灯具ユニット２０の各々がユニット支持部材５２に対して上下方向に回動可能に支持されており、このユニット支持部材５２がランプボディ１２に対して左右方向に回動可能に支持されているものとして説明したが、３つの灯具ユニット２０の各々が直接ランプボディ１２に対して上下方向に回動可能に支持された構成とすることも可能である。このような構成を採用した場合においても、上下方向の光軸調整によって車両用灯具１０の意匠性が損なわれてしまうのを効果的に抑制することができる。また、左右方向の光軸調整を必要としないフォグランプ等において、簡易な灯具構成により実施形態と同様の作用効果を得ることができる。 In the embodiment, each of the three lamp units 20 is supported to be vertically rotatable with respect to the unit support member 52, and the unit support member 52 is horizontally rotatable with respect to the lamp body 12. However, it is also possible to adopt a configuration in which each of the three lamp units 20 is directly supported on the lamp body 12 so as to be vertically rotatable. Even when such a configuration is employed, it is possible to effectively prevent deterioration of the design of the vehicle lamp 10 due to vertical optical axis adjustment. Further, in a fog lamp or the like that does not require lateral adjustment of the optical axis, the same effects as those of the embodiment can be obtained with a simple lamp configuration.
　次に、実施形態の変形例について説明する。 Next, a modified example of the embodiment will be described.
　まず、実施形態の第１変形例について説明する。 First, the first modified example of the embodiment will be described.
　図１２は、本変形例に係る車両用灯具１１０を示す、図２と同じ方向から見た図である。 FIG. 12 is a view showing the vehicle lamp 110 according to this modified example, viewed from the same direction as in FIG.
　図１２に示すように、本変形例の基本的な構成は実施形態の場合と同様であるが、透光カバー１１４の構成が実施形態の場合と一部異なっている。 As shown in FIG. 12, the basic configuration of this modification is the same as that of the embodiment, but the configuration of the translucent cover 114 is partially different from that of the embodiment.
　すなわち、本変形例の透光カバー１１４も、３つの灯具ユニット２０からの照射光が透過する照射光透過領域１１４Ａ以外の領域１１４Ｂに遮光処理が施された構成となっている。遮光処理は透光カバー１１４の内面に有色塗装膜１１６を形成することによって行われている。 That is, the light-transmitting cover 114 of this modified example also has a configuration in which a light-shielding treatment is applied to an area 114B other than the irradiation light transmission area 114A through which the irradiation light from the three lamp units 20 is transmitted. The light shielding process is performed by forming a colored coating film 116 on the inner surface of the translucent cover 114 .
　本変形例においては、透光カバー１１４の照射光透過領域１１４Ａが、それぞれの灯具ユニット２０の前方に配置された３つの横長矩形状領域として設定されている。 In this modified example, the irradiation light transmission areas 114A of the light transmission cover 114 are set as three oblong rectangular areas arranged in front of the lamp units 20, respectively.
　本変形例の構成を採用することにより、透光カバー１１４の照射光透過領域１１４Ａを必要最小限のサイズの横長矩形状領域として設定することができる。これにより車両用灯具１１０の意匠性を高めることができる。 By adopting the configuration of this modified example, the irradiation light transmission area 114A of the light transmission cover 114 can be set as a horizontally elongated rectangular area of the minimum necessary size. Thereby, the designability of the vehicle lamp 110 can be enhanced.
　次に、実施形態の第２変形例について説明する。 Next, a second modified example of the embodiment will be described.
　図１３は、本変形例に係る車両用灯具２１０を示す、図１０と同じ方向から見た図である。 FIG. 13 is a view showing the vehicle lamp 210 according to this modified example, viewed from the same direction as in FIG.
　図１３に示すように、本変形例の基本的な構成は実施形態の場合と同様であるが、透光カバー２１４の構成が実施形態の場合と一部異なっている。 As shown in FIG. 13, the basic configuration of this modification is the same as that of the embodiment, but the configuration of the translucent cover 214 is partially different from that of the embodiment.
　本変形例の透光カバー２１４も、３つの灯具ユニット２０からの照射光が透過する照射光透過領域２１４Ａ以外の領域２１４Ｂに遮光処理が施された構成となっている。 The light-transmitting cover 214 of this modified example also has a configuration in which a light-shielding treatment is applied to a region 214B other than the irradiation light transmission region 214A through which the irradiation light from the three lamp units 20 is transmitted.
　透光カバー２１４は２色成形品として作製されている。遮光処理は、照射光透過領域２１４Ａを透明樹脂材料で形成するとともに、その周囲に位置する領域２１４Ｂの内面側部分を有色樹脂材料（例えば黒色樹脂材料）で形成することによって行われる。照射光透過領域２１４Ａの上下幅は、最大上下幅Ｈよりも僅かに大きい値となるように設定されている。 The translucent cover 214 is produced as a two-color molded product. The light shielding process is performed by forming the irradiation light transmitting region 214A with a transparent resin material and forming the inner surface side portion of the region 214B located around it with a colored resin material (for example, a black resin material). The vertical width of the irradiation light transmitting region 214A is set to be slightly larger than the maximum vertical width H. As shown in FIG.
　本変形例の構成を採用した場合においても、灯具ユニット２０の光軸調整によって車両用灯具２１０の意匠性が損なわれてしまうのを効果的に抑制することができる。 Even when the configuration of this modified example is adopted, it is possible to effectively prevent the deterioration of the design of the vehicle lamp 210 due to the optical axis adjustment of the lamp unit 20 .
　また、本変形例の構成を採用することにより、透光カバー２１４に対して後処理を施すことを必要とせずに、車両用灯具２１０の意匠性を高めることができる。 Further, by adopting the configuration of this modified example, it is possible to enhance the design of the vehicle lamp 210 without requiring post-processing of the translucent cover 214 .
　次に、実施形態の第３変形例について説明する。 Next, a third modified example of the embodiment will be described.
　図１４は、本変形例に係る車両用灯具３１０を示す、図１０と同じ方向から見た図である。 FIG. 14 is a view showing the vehicle lamp 310 according to this modified example, viewed from the same direction as in FIG.
　図１４に示すように、本変形例の基本的な構成は実施形態の場合と同様であるが、透光カバー３１４の構成が実施形態の場合と一部異なっており、かつ、エクステンションパネル３１８が追加配置された構成となっている。 As shown in FIG. 14, the basic configuration of this modification is the same as that of the embodiment, but the configuration of the translucent cover 314 is partially different from that of the embodiment, and the extension panel 318 is It has an additional configuration.
　すなわち、本変形例の透光カバー３１４は、その全体が透明の樹脂製部材で構成されており、遮光処理は施されていない。 That is, the translucent cover 314 of this modified example is entirely made of a transparent resin member and is not subjected to light shielding treatment.
　エクステンションパネル３１８は、不透明の樹脂製部材で構成されており、灯室内において透光カバー３１４に沿って延びるように配置されている。 The extension panel 318 is made of an opaque resin member and is arranged to extend along the translucent cover 314 inside the lamp chamber.
　エクステンションパネル３１８には、３つの灯具ユニット２０からの照射光が通過する領域に開口部３１８ａが形成されている。開口部３１８ａの開口形状は、透光カバー３１４において３つの灯具ユニット２０からの照射光が透過する照射光透過領域３１４Ａを灯室内側から囲む横長矩形状である。開口部３１８ａの周縁部には、３つの灯具ユニット２０からの照射光の最大照射範囲に沿って灯具後方側へ向けて延びる周縁フランジ部３１８ｂが形成されている。 An opening 318a is formed in the extension panel 318 in a region through which light emitted from the three lamp units 20 passes. The shape of the opening 318a is a horizontally long rectangular shape that surrounds, from the inside of the lamp chamber, an irradiation light transmitting region 314A through which the irradiation light from the three lamp units 20 is transmitted in the light transmitting cover 314. As shown in FIG. A peripheral flange portion 318b extending toward the rear side of the lamp along the maximum irradiation range of the irradiation light from the three lamp units 20 is formed on the peripheral portion of the opening 318a.
　本変形例の構成を採用した場合においても、灯具ユニット２０の光軸調整によって車両用灯具３１０の意匠性が損なわれてしまうのを効果的に抑制することができる。 Even when the configuration of this modified example is adopted, it is possible to effectively prevent the deterioration of the design of the vehicle lamp 310 due to the optical axis adjustment of the lamp unit 20 .
　また、本変形例の構成を採用した場合においても、透光カバー３１４に対して後処理を施すことを必要とせずに、車両用灯具３１０の意匠性を高めることができる。 Also, even when the configuration of this modified example is adopted, the design of the vehicle lamp 310 can be improved without requiring post-processing of the translucent cover 314 .
　なお、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 embodiment and its modification are merely examples, and it goes without saying that these values may be set to different values as appropriate.
　また、本開示は、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。 In addition, the present disclosure is not limited to the configurations described in the embodiments and modifications thereof, and configurations with various other modifications can be adopted.
　本出願は、２０２１年６月１５日に出願された日本国特許出願（特願２０２１－０９９７３２号）に開示された内容を適宜援用する。 This application appropriately incorporates the content disclosed in the Japanese patent application (Japanese Patent Application No. 2021-099732) filed on June 15, 2021.

Claims (5)

  1. 　複数の灯具ユニットと、前記複数の灯具ユニットを所要方向に回動可能に支持するための回動支持機構と、を備えた車両用灯具であって、
    　前記複数の灯具ユニットは、灯具前後方向に関して互いに異なる位置に配置されており、
    　前記回動支持機構は、前記複数の灯具ユニットの各々を灯具前後方向に関して互いに異なる位置において前記所要方向に回動可能に支持するように構成されたユニット支持部材と、前記ユニット支持部材に支持された前記複数の灯具ユニットの各々と係合した状態で前記複数の灯具ユニットを一括して前記所要方向に回動させるように構成されたユニット駆動部材とを備えている、車両用灯具。     A vehicular lamp comprising: a plurality of lamp units; and a rotation support mechanism for supporting the plurality of lamp units so as to be rotatable in a required direction,
    the plurality of lamp units are arranged at positions different from each other in the longitudinal direction of the lamp;
    The rotation support mechanism includes a unit support member configured to support each of the plurality of lamp units so as to be rotatable in the required direction at positions different from each other in the longitudinal direction of the lamp, and supported by the unit support member. and a unit driving member configured to collectively rotate the plurality of lighting units in the required direction while being engaged with each of the plurality of lighting units.
  2. 　前記各灯具ユニットと前記ユニット駆動部材との係合部に、前記各灯具ユニットの前記所要方向の回動角度を微調整するための微調整機構が設けられている、請求項１記載の車両用灯具。 2. The vehicle according to claim 1, further comprising a fine adjustment mechanism for finely adjusting a rotation angle of each lighting unit in the required direction at an engaging portion between each lighting unit and the unit driving member. lamp.
  3. 　前記複数の灯具ユニットは、ランプボディと透光カバーとで形成される灯室内に収容されており、
    　前記回動支持機構は、前記複数の灯具ユニットを前記ランプボディに対して前記所要方向と直交する方向に回動させ得るように構成されている、請求項１または２記載の車両用灯具。     The plurality of lamp units are housed in a lamp chamber formed by a lamp body and a translucent cover,
    3. The vehicle lamp according to claim 1, wherein said rotation support mechanism is configured to rotate said plurality of lamp units with respect to said lamp body in a direction orthogonal to said required direction.
  4. 　前記透光カバーは、前記複数の灯具ユニットからの照射光が透過する照射光透過領域に対して前記所要方向の両側に位置する領域に遮光処理が施された構成となっている、請求項３記載の車両用灯具。 3. The light-transmitting cover has a structure in which light-shielding processing is applied to regions located on both sides in the required direction with respect to an irradiation light transmission region through which the irradiation light from the plurality of lamp units is transmitted. Vehicle lighting fixtures as described.
  5. 　前記所要方向は上下方向に設定されており、
    　前記ランプボディにレベリングアクチュエータが設けられており、
    　前記ユニット駆動部材は前記レベリングアクチュエータに連結されている、請求項３または４記載の車両用灯具。
          The required direction is set in the vertical direction,
    A leveling actuator is provided on the lamp body,
    5. The vehicle lamp according to claim 3, wherein said unit driving member is connected to said leveling actuator.
PCT/JP2022/023082 2021-06-15 2022-06-08 Vehicle lamp WO2022264892A1 (en)

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JP2021-099732 2021-06-15

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009158283A (en) * 2007-12-26 2009-07-16 Ichikoh Ind Ltd Leveling device of vehicular headlight
US20170120799A1 (en) * 2015-10-28 2017-05-04 GM Global Technology Operations LLC Headlamp assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009158283A (en) * 2007-12-26 2009-07-16 Ichikoh Ind Ltd Leveling device of vehicular headlight
US20170120799A1 (en) * 2015-10-28 2017-05-04 GM Global Technology Operations LLC Headlamp assembly

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