JP5843332B2 - Vehicle lamp - Google Patents

Description

  The present invention relates to a vehicular lamp. More specifically, the present invention relates to a technical field in which a second lamp unit constituting a diffusion optical system is arranged outside the first lamp unit constituting the condensing optical system to improve functionality.

Japanese Patent Laid-Open No. 2004-95481 JP-A-2005-141919

  Some vehicle lamps are arranged with a plurality of light sources arranged in the vertical and horizontal directions, and each of the light sources is controlled to turn on and off separately to form a desired light distribution pattern according to the situation (for example, Patent Document 1 and Patent Document 2).

  In the vehicular lamp described in Patent Literature 1 and Patent Literature 2, a plurality of individually controlled lamp units are arranged, and lamp units and diffused light for forming a horizontal cut line in a light distribution pattern are arranged. For example, different types of light distribution patterns as a headlamp can be formed by the lamp unit for irradiation.

  However, in the vehicular lamps described in Patent Document 1 and Patent Document 2, since the outer shape is not particularly taken into consideration, depending on the position and shape of the plurality of lamp units, the vehicular lamp is increased in size. End up.

  In addition, the vehicular lamp may be disposed on both the left and right sides of the vehicle body, and the irradiation direction of light from each lamp unit may be different, and the plurality of lamp units have different functions called a condensing optical system and a diffusion optical system, respectively. Therefore, the functionality may be lowered depending on the arrangement state of each lamp unit.

  Therefore, an object of the vehicular lamp of the present invention is to reduce the size and improve the functionality.

In order to solve the above-described problems, a vehicular lamp according to the present invention includes a lamp outer casing constituted by a cover and a lamp housing, a headlamp light source and a daytime running lamp light source disposed on the same substrate. Are arranged along the inner surface of the cover, the surface facing the cover is formed in a gently curved shape along the inner surface of the cover, and opposed to the lamp unit. And a lens provided with a common control unit for controlling light emitted from the two light sources on the inner surface. Or a lamp outer casing constituted by a cover and a lamp housing, and a light source for a headlamp and a light source for a daytime running lamp disposed on the same substrate provided on a mounting member having a shape along the light transmitting portion of the cover A plurality of lamp units provided along the inner surface of the cover, and a surface facing the cover is formed in a gently curved shape along the inner surface of the cover, and the inner surface facing the lamp unit is formed on the inner surface facing the lamp unit. A lens provided with a common control unit that controls light emitted from the two light sources, and at least one of the plurality of lamp units is disposed on a mounting member facing the front of the vehicle, and at least One is arranged on an attachment member facing the vehicle front diagonal left direction or the vehicle front diagonal right direction outside the lamp unit.

Thereby, since it becomes easy to form a desired light distribution pattern, the function of the vehicular lamp is improved. Further, it is possible to reduce the size of the vehicular lamp.

According to the present invention, since it becomes easy to form a desired light distribution pattern, the function of the vehicular lamp is improved. Further, it is possible to reduce the size of the vehicular lamp.

2 to 5 show the best mode of the present invention, and this figure is a schematic horizontal sectional view of a vehicular lamp. It is a figure which shows the light distribution pattern formed when light is radiate | emitted from the 1st lamp unit. It is a figure which shows the light distribution pattern formed when light is radiate | emitted from the 2nd lamp unit located inside. It is a figure which shows the light distribution pattern formed when light is radiate | emitted from the 2nd lamp unit located outside. It is a figure which shows the light distribution pattern formed by combining three light distribution patterns.

  EMBODIMENT OF THE INVENTION Below, the form for implementing the vehicle lamp of this invention is demonstrated with reference to an accompanying drawing.

  The vehicular lamp 1 is, for example, a lamp that functions as at least a vehicular headlamp, and is disposed at both left and right ends of the vehicle body 100 (see FIG. 1). FIG. 1 shows, as an example, a vehicular lamp 1 disposed at the left end portion of the vehicle body 100.

  The vehicular lamp 1 includes a lamp housing 2 having a recess opened substantially forward and a cover 3 that closes the opening surface of the lamp housing 2, and the lamp housing 2 and the cover 3 constitute a lamp outer casing 4. The interior of the lamp outer casing 4 is formed as a lamp chamber 5.

  The cover 3 is formed by integrally forming a light transmitting portion 3a and a mounted portion 3b protruding from the outer periphery of the light transmitting portion 3a toward the lamp housing 2, and the tip of the mounted portion 3b is attached to the lamp housing 2. It has been.

  The light transmission part 3a is formed in a shape of a gently curved surface that protrudes obliquely forward, and is displaced rearward as it goes outward on the side, and is displaced backward as it goes upward.

  A mounting member 6 made of a metal material having high heat dissipation is disposed in the lamp chamber 5. The attachment member 6 is formed in a shape substantially along the light transmitting portion 3a of the cover 3, and the front and rear end portions at the upper end portion and the rear end portion at the lower end portion are provided as connecting portions 6a, 6a, 6a, respectively. The attachment member 6 includes, for example, five attachment portions, that is, a first attachment portion 7A, a second attachment portion 7B, a second attachment portion 7C, a third attachment portion 7D, and a fourth attachment portion 7E. Is provided.

  The first mounting portion 7A is located on the innermost side, and the second mounting portion 7B, the second mounting portion 7C, the third mounting portion 7D, and the fourth mounting portion 7E are the first mounting portion 7A. Are located in order on the outside. The first mounting portion 7A and the second mounting portion 7B have their surfaces facing the light transmitting portion 3a of the cover 3 facing forward, and the second mounting portion 7C is a surface facing the light transmitting portion 3a. Is directed diagonally to the left, and the third mounting portion 7D and the fourth mounting portion 7E are formed such that the surfaces facing the light transmitting portion 3a are directed substantially to the left.

  The first mounting portion 7A, the second mounting portion 7B, and the second mounting portion 7C are formed at substantially the same position in the front-rear direction, and the third mounting portion 7D includes the first mounting portion 7A and the second mounting portion. 7B and the 2nd attachment part 7C are located back, and the 4th attachment part 7E is located behind the 3rd attachment part 7D.

  The mounting member 6 is provided with heat radiation fins 8, 8,... Protruding from the back surfaces of the first mounting portion 7A to the fourth mounting portion 7E.

  The lamp chamber 5 is provided with a first lamp unit 9A, a second lamp unit 9B, a second lamp unit 9C, a third lamp unit 9D, and a fourth lamp unit 9E. The first lamp unit 9A, the second lamp unit 9B, the second lamp unit 9C, the third lamp unit 9D, and the fourth lamp unit 9E are respectively a first mounting portion 7A, a second mounting portion 7B, The second attachment portion 7C, the third attachment portion 7D, and the fourth attachment portion 7E are attached to the surface on the side facing each light transmission portion 3a.

  The first lamp unit 9 </ b> A includes a first light source 10, a reflector 11 that reflects light emitted from the first light source 10, and a shade 12 that shields part of the light emitted from the first light source 10. And a reflection type lamp unit constituting the condensing optical system. For example, a light emitting diode (LED) is used as the first light source 10, and the first light source 10 is disposed on the substrate 13.

  The shade 12 is a movable shade that is movable, and when light is emitted from the first light source 10, a so-called low beam light distribution pattern that irradiates a short distance according to a moving position and a so-called long distance irradiation. A high beam light distribution pattern is formed. In addition, the shade 12 may be formed with the upper surface as a reflective surface, for example.

  The light emitted from the first light source 10 of the first lamp unit 9 </ b> A is reflected by the reflector 11 and is irradiated forward while being partially shielded by the shade 12. Accordingly, the first lamp unit 9A functions as a lamp unit that forms a cut line in the light distribution pattern.

  The second lamp unit 9B is a direct-type lamp unit that includes, for example, two second light sources 15a and 15b arranged on a substrate 14, and constitutes a diffusion optical system.

  For example, light emitting diodes (LEDs) are used as the second light sources 15a and 15b. One second light source 15a is, for example, a light source for a headlamp that illuminates the front when the vehicle is running, and the other second light source 15b is, for example, the presence of a vehicle for a pedestrian or the like other than at night. Is a light source for a so-called daytime running lamp. Therefore, the second light sources 15a and 15b are individually controlled to be turned on and off.

  The second lamp unit 9C is a direct-type lamp unit that includes, for example, two second light sources 17a and 17b arranged on a substrate 16, and constitutes a diffusion optical system. The diffusion range of the second lamp unit 9C is set larger than the diffusion range of the second lamp unit 9B.

  For example, light emitting diodes (LEDs) are used as the second light sources 17a and 17b. One second light source 17a is, for example, a light source for headlamps, and the other second light source 17b is, for example, a light source for daytime running lamps. Accordingly, the second light sources 17a and 17b are individually controlled to be turned on and off.

  The vehicular lamp 1 can also be used as a so-called clearance lamp that is a vehicle width lamp by dimming the first light sources 15b and 17b used as light sources for daytime running lamps.

  The third lamp unit 9D is a direct-type lamp unit, for example, having a third light source 19 disposed on a substrate 18. For example, a light emitting diode (LED) is used as the third light source 19. The third lamp unit 9D functions as a so-called cornering lamp that flashes when the vehicle turns right or left, or a so-called bending lamp that irradiates the traveling direction according to the rotation angle of the steering wheel when the vehicle travels on a curve.

  The fourth lamp unit 9E is a direct-type lamp unit, for example, having a fourth light source 21 disposed on the substrate 20. As the fourth light source 21, for example, a light emitting diode (LED) is used. The fourth lamp unit 9D functions as a cornering lamp or a bending lamp.

  The mounting member 6 is supported by the lamp housing 2 via an optical axis adjusting mechanism 22 so as to be tiltable.

  The optical axis adjusting mechanism 22 has aiming screws 23 and 23 and a leveling actuator (not shown).

  The aiming screws 23, 23 are, for example, spaced apart from each other left and right, and include rotation operation units 24, 24 and shaft units 25, 25 protruding forward from the rotation operation units 24, 24, respectively. The front end portion of 25 is provided as screw shaft portions 25a and 25a.

  The aiming screws 23, 23 are rotatably supported by the rotation operation parts 24, 24 on the lamp body 2, and screw shaft parts 25 a, 25 a are respectively screwed and connected to the connecting parts 6 a, 6 a on the upper side of the mounting member 6. ing.

  The leveling actuator includes a driving portion and a shaft portion protruding forward from the driving portion, and the front end portion of the shaft portion is screwed into, for example, a lower connecting portion 6a of the attachment member 6.

  In the vehicular lamp 1, when the aiming screw 23 connected to the connecting portion 6 a is rotated by the rotation operating portion 24 being operated by a jig such as a driver (not shown), another connecting portion is moved in a direction corresponding to the rotating direction. The mounting member 6 is tilted about 6a and 6a as fulcrums, and optical axis adjustment (aiming adjustment) of the first lamp unit 9A and the like is performed.

  Further, when the shaft portion 25 connected to the connecting portion 6a is rotated by the driving force of the driving portion, the mounting member 6 is tilted with the other connecting portions 6a, 6a as fulcrums in the direction corresponding to the rotation direction. Optical axis adjustment (leveling adjustment) of the lamp unit 9A and the like is performed.

  A compound lens 26 is disposed between the cover 3 and the attachment member 6. The compound lens 26 has a plate-like light emitting portion 27 formed in a curved shape and five control portions provided on the back side of the light emitting portion 27, that is, a first control portion 28A, a second control portion 28B, and a second control portion. The control unit 28C, the third control unit 28D, and the fourth control unit 28E are integrally formed.

  The light exiting portion 27 is formed in a shape along the light transmitting portion 3a of the cover 3, and the light exiting surface 27a, which is the surface facing the light transmitting portion 3a, has a gently curved surface convex to the side facing the light transmitting portion 3a. Is formed. Moreover, the light emission part 27 is formed in the shape displaced to back as it goes to the outer side.

  The first control unit 28A, the second control unit 28B, the second control unit 28C, the third control unit 28D, and the fourth control unit 28E are respectively a first lamp unit 9A and a second lamp unit 9B. The second lamp unit 9C, the third lamp unit 9D, and the fourth lamp unit 9E are positioned opposite to each other.

  Accordingly, the light emitted from the first light source 10 is controlled by the first control unit 28A so as to go in a predetermined direction, and the light emitted from the second light sources 15a and 15b by the second control unit 28B is controlled. Control is performed so as to go in a predetermined direction, and light emitted from the second light sources 17a and 17b is controlled by the second control unit 28C so as to go in a predetermined direction. Further, the light emitted from the third light source 19 is controlled to go in a predetermined direction by the third control unit 28D, and the light emitted from the fourth light source 21 by the fourth control unit 28E is predetermined. It is controlled to go in the direction.

  FIG. 2 shows a light distribution pattern A formed when light is emitted from the first light source 10 of the first lamp unit 9A. The first lamp unit 9A is a lamp unit constituting a condensing optical system, and forms a light distribution pattern A in a region called a hot zone.

  FIG. 3 shows a light distribution pattern B formed when light is emitted from the second light source 15A for headlights of the second lamp unit 9B. The second lamp unit 9B is a lamp unit that constitutes a diffusion optical system, and includes the light distribution pattern B and forms a large light distribution pattern B on the left and right and below the light distribution pattern A.

  FIG. 4 shows a light distribution pattern C formed when light is emitted from the second light source 17A for headlights of the second lamp unit 9C. The second lamp unit 9 </ b> C is a lamp unit constituting a diffusion optical system, and includes a light distribution pattern A and forms a large light distribution pattern C on the left and right and below the light distribution pattern B.

  FIG. 5 shows a light distribution pattern when the light distribution pattern A, the light distribution pattern B, and the light distribution pattern C are combined.

  In the vehicle lamp 1 described above, the light exit portion 27 of the compound lens 26 is displaced rearward as it goes outward, so that the inclination of the light exit surface 27a with respect to the left-right direction increases as it goes outward. At this time, if the first lamp unit 9A configured as a condensing optical system is arranged at a position with a large inclination, the light easily diffuses. Therefore, a desired light distribution pattern is formed using the reflector 11 and the shade 12. It becomes difficult.

  Therefore, in the vehicular lamp 1, as described above, the reflection-type first lamp unit 9A constituting the condensing optical system is arranged on the inner side in the lateral direction, and the direct-lighting type constituting the diffusion optical system. The second lamp unit 9B is disposed outside the first lamp unit 9A.

  Accordingly, the reflective first lamp unit 9A constituting the condensing optical system is positioned corresponding to the portion where the inclination of the light exit surface 27a with respect to the left-right direction is small, and a desired light distribution pattern using the reflector 11 and the shade 12 is used. A can be easily formed, and the functionality of the vehicular lamp 1 can be improved.

  In the vehicular lamp 1, the light exit surface 27 a formed in a gently curved shape is formed in a shape that is displaced rearward as it goes outward on the side of the vehicle. Therefore, the vehicle lamp 1 can be reduced in size.

  Further, a third lamp unit 9D and a second lamp unit 9D functioning as a cornering lamp or a bending lamp having functions different from those of the first lamp unit 9A and the second lamp unit 9B at positions outside the side of the second lamp unit 9B. Four lamp units 9E are arranged.

  Therefore, the functionality of the vehicular lamp 1 can be further improved.

  Furthermore, since the composite lens 26 is provided with a third control unit 28D and a fourth control unit 28E that control the light emitted from the third lamp unit 9D and the fourth lamp unit 9E, respectively. A desired light distribution pattern can be easily formed by the light emitted from the third lamp unit 9D and the fourth lamp unit 9E.

  In addition, since the first control unit 28A to the fourth control unit 28E are provided in one compound lens 26, the number of parts can be reduced.

  In addition, since the first lamp unit 9A to the fourth lamp unit 9E are mounted and arranged on one mounting member 6, the number of parts can be reduced. The first lamp unit 9A to the fourth lamp unit 9E may be attached to different attachment members.

  The shapes and structures of the respective parts shown in the above-described embodiments are merely examples of implementations in carrying out the present invention, and the technical scope of the present invention is construed in a limited manner. There should be no such thing.

DESCRIPTION OF SYMBOLS 1 ... Vehicle lamp, 2 ... Lamp housing, 3 ... Cover, 4 ... Lamp outer casing, 6 ... Mounting member, 9B ... 2nd lamp unit (lamp unit), 9C ... 2nd lamp unit (lamp unit), 14 ... Substrate, 16 ... Substrate, 15a ... Second light source (light source for headlamp), 15b ... Second light source (light source for daytime running lamp), 17a ... Second light source (light source for headlamp), 17b 2nd light source (light source for daytime running lamp) 26 26 Compound lens (lens) 27a Light exit surface (surface facing the cover) 28B Second control unit (control unit) 28C 2nd Control unit (control unit)

Claims (2)

A lamp outer casing constituted by a cover and a lamp housing;
A lamp unit in which the light source for headlamps and the light source for daytime running lamps arranged on the same substrate are individually controlled to be turned on and off;
The surface disposed along the inner surface of the cover, the surface facing the cover is formed in a gently curved shape along the inner surface of the cover, and the light emitted from the two light sources is incident on the inner surface facing the lamp unit. A vehicle lamp comprising: a lens provided with a common control unit for controlling. A lamp outer casing constituted by a cover and a lamp housing;
A plurality of lamp units including a light source for headlamps and a light source for daytime running lamps disposed on the same substrate provided on a mounting member having a shape along the light transmitting portion of the cover;
The surface disposed along the inner surface of the cover, the surface facing the cover is formed in a gently curved shape along the inner surface of the cover, and the light emitted from the two light sources is incident on the inner surface facing the lamp unit. And a lens provided with a common control unit to control,
At least one of the plurality of lamp units is disposed on a mounting member facing forward of the vehicle, and at least one of the plurality of lamp units is mounted facing diagonally left front of the vehicle or diagonally right front of the vehicle outside the lamp unit. A vehicular lamp characterized by being disposed on a member.

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