WO2022264892A1 - Feu de vehicule - Google Patents

Feu de vehicule 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
English (en)
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/fr

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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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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

La présente invention concerne un feu de véhicule (10) comprenant une pluralité d'unités de feu (20), et un mécanisme de support de pivot (50) pour supporter la pluralité d'unités de feu (20) de façon à pouvoir pivoter dans une direction souhaitée. La pluralité d'unités de feu (20) sont disposées à des positions mutuellement différentes par rapport à une direction avant-arrière de feu. Le mécanisme de support de pivot (50) comprend un élément de support unitaire (52) configuré pour supporter chacune des unités de la pluralité d'unités de feu (20) de manière à pouvoir pivoter dans la direction souhaitée, à des positions mutuellement différentes par rapport à la direction avant-arrière du feu, et un élément d'entraînement d'unité (54) configuré pour faire pivoter collectivement la pluralité d'unités de feu (20) dans une direction souhaitée dans un état dans lequel l'élément d'entraînement d'unité (54) est en prise avec chacune des unités de la pluralité d'unités de feu (20) supportées par l'élément de support d'unité (52).
PCT/JP2022/023082 2021-06-15 2022-06-08 Feu de vehicule WO2022264892A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021099732A JP2022191090A (ja) 2021-06-15 2021-06-15 車両用灯具
JP2021-099732 2021-06-15

Publications (1)

Publication Number Publication Date
WO2022264892A1 true WO2022264892A1 (fr) 2022-12-22

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PCT/JP2022/023082 WO2022264892A1 (fr) 2021-06-15 2022-06-08 Feu de vehicule

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JP (1) JP2022191090A (fr)
WO (1) WO2022264892A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009158283A (ja) * 2007-12-26 2009-07-16 Ichikoh Ind Ltd 車両用前照灯のレベリング装置
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 (ja) * 2007-12-26 2009-07-16 Ichikoh Ind Ltd 車両用前照灯のレベリング装置
US20170120799A1 (en) * 2015-10-28 2017-05-04 GM Global Technology Operations LLC Headlamp assembly

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