JP2020191263A - Vehicular lighting fixture - Google Patents

Abstract

To provide a vehicular lighting fixture that can form a low-beam light distribution pattern and a high-beam light distribution pattern while having a simple structure.SOLUTION: A vehicular lighting fixture comprises a first reflector 21 for reflecting light emitted from a first light source 17, a second reflector 31 for reflecting light emitted from a second light source 18, and a projection lens 15 for forming a low-beam light distribution pattern by projecting the light reflected by the first reflector 21, and forming a high-beam light distribution pattern by projecting the light reflected by the second reflector 31. The first light source 17 and the second light source 18 are provided on the same plane on a lower side of a lens axis La of the projection lens 15. The second reflector 31 is provided on the lower side of the lens axis La and on a front side of the first reflector 21 in an optical axis direction in which the lens axis La extends.SELECTED DRAWING: Figure 3

Description

The present disclosure relates to vehicle lamps.

In vehicle lighting fixtures, light from the first light source is emitted from a projection lens to form a passing light distribution pattern, and light from a second light source is emitted from a projection lens to form a traveling light distribution pattern. (See, for example, Patent Document 1 and the like).

By making the installation position and the installation angle of the first light source and the second light source different from each other, the vehicle lamp can form a light distribution pattern for passing and a light distribution pattern for traveling.

Japanese Unexamined Patent Publication No. 2016-39110

However, in the above-mentioned vehicle lamps, since the installation positions and angles of the first light source and the second light source are different, the shape of the installation location of both light sources becomes complicated and it is necessary to provide two substrates. is there.

The present disclosure has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle lamp capable of forming a light distribution pattern for passing and a light distribution pattern for traveling while having a simple configuration.

The vehicle lighting equipment of the present disclosure includes a first reflector that reflects light emitted from a first light source, a second reflector that reflects light emitted from a second light source, and light reflected by the first reflector. A projection lens that projects light to form a passing light distribution pattern and projects light reflected by the second reflector to form a traveling light distribution pattern, the first light source and the second light source. Is light that is provided on the same plane below the lens axis of the projection lens, the second reflector is below the lens axis, and the lens axis extends beyond the first reflector. It is characterized in that it is provided on the front side in the axial direction.

According to the vehicle lighting equipment of the present disclosure, it is possible to form a light distribution pattern for passing and a light distribution pattern for traveling while having a simple configuration.

It is explanatory drawing which shows the vehicle lamp of Example 1 of the vehicle lamp which concerns on this disclosure. It is explanatory drawing which shows the structure of a vehicle lamp by disassembling. It is sectional drawing of the vehicle lamp obtained along the line I-I of FIG. It is explanatory drawing which shows the lighting fixture for a vehicle of Example 2. FIG. It is explanatory drawing which shows the structure of the vehicle lamp of Example 2 by disassembling. It is sectional drawing of the vehicle lamp obtained along the line II-II of FIG. It is explanatory drawing which disassembles and shows the structure of another example of the vehicle lamp of Example 1 and Example 2.

Hereinafter, each embodiment of the vehicle lamp 10 as an example of the vehicle lamp according to the present disclosure will be described with reference to the drawings.

The vehicle lamp 10 of the first embodiment according to the embodiment of the vehicle lamp according to the present disclosure will be described with reference to FIGS. 1 to 3. The vehicle lighting tool 10 of the first embodiment is used as a lighting tool for a vehicle such as an automobile, and is used for, for example, a head lamp, a fog lamp, or the like. The vehicle lighting equipment 10 is arranged on both the left and right sides of the front portion of the vehicle, and is formed in a lamp chamber formed by covering the open front end of the lamp housing with an outer lens, and has a vertical optical axis adjusting mechanism and horizontal light. It is provided via a shaft adjustment mechanism. In the following description, in the vehicle lighting tool 10, the traveling direction when the vehicle is traveling straight and the direction of irradiating light is the optical axis direction (Z in the drawing), and the vertical direction when mounted on the vehicle is defined as the vertical direction. The vertical direction (Y in the drawing) is used, and the width direction (X in the drawing) is the direction orthogonal to the optical axis direction and the vertical direction.

As shown in FIGS. 1 and 2, the vehicle lighting fixture 10 includes a light source unit 11, a first member 12, a shade 13, a second member 14, a projection lens 15, and a heat radiating member 16, and is a projector-type headlight. Configure the unit. The vehicle lamp 10 is mounted on the heat radiating member 16 from the upper side in the vertical direction in the order of the light source portion 11, the second member 14, the shade 13 and the first member 12, and is placed on the first member 12 and the second member 14. The projection lens 15 is held and configured.

In the light source unit 11, as shown in FIGS. 2 and 3, the first light source 17 and the second light source 18 are mounted on the substrate 19. The first light source 17 and the second light source 18 are composed of light emitting elements such as LEDs (Light Emitting Diodes). The first light source 17 and the second light source 18 are provided side by side in the optical axis direction below the lens axis La of the projection lens 15, and the second light source 18 is on the front side (projection lens 15 side). There is. The first light source 17 and the second light source 18 of the first embodiment are configured by arranging a plurality of light emitting elements in the width direction at positions on the substrate 19 in the respective optical axis directions. The substrate 19 is provided with mounting holes 19a that form a pair at both ends in the optical axis direction and penetrate in the vertical direction.

The substrate 19 is installed on the upper surface (light source installation portion 41) of the heat radiating member 16. As a result, the first light source 17 and the second light source 18 are attached to the heat radiating member 16 via the substrate 19 so that the light emission optical axis (optical axis direction) is substantially in the vertical direction. Be placed. The substrate 19 appropriately supplies electric power from the lighting control circuit to light the first light source 17 and the second light source 18 all at once or individually.

The first member 12 forms an upper portion of the vehicle lamp 10 and includes a first reflector 21, a first frame portion 22, a first lens holding portion 23, and a first mounting plate portion 24. The first reflector 21 covers the first light source 17 and the second reflector 31, which will be described later, and has a first reflecting surface 25 facing the first light source 17. The first reflecting surface 25 reflects the light emitted from the first light source 17 toward the projection lens 15. The first reflecting surface 25 is formed by adhering a reflecting member such as aluminum or silver to the inner surface of the first reflector 21 facing the first light source 17 by vapor deposition, painting, or the like. The first reflecting surface 25 is a free curved surface based on an ellipse having the first light source 17 as the first focal point and the vicinity of the front edge portion 13d of the shade 13 as the second focal point.

The first frame portion 22 is continuously provided on the front side of the first reflector 21 in the optical axis direction, and is curved so as to surround the lens shaft La at a distance from the lens shaft La. The first frame portion 22 makes the distance between the first reflector 21 (first reflecting surface 25) and the projection lens 15 optically appropriate. The first frame portion 22 is provided with protruding portions 26 in pairs on both sides in the width direction, and the first fixing holes 27 are provided in the protruding portions 26. Both first fixing holes 27 fix the first member 12 to the heat radiating member 16 while positioning it. Both first fixing holes 27 are provided near the front side of the focal point F in the optical axis direction of the projection lens 15 and near the lens axis La in the vertical direction (see FIG. 3). It is formed so as to penetrate the protruding portion 26 in the vertical direction.

The first lens holding portion 23 is continuously provided on the front side of the first frame portion 22 in the optical axis direction, and holds the upper side of the projection lens 15. The first lens holding portion 23 has a semi-cylindrical shape that is substantially an upper half of the cylindrical shape centered on the lens axis La, and has a holding groove 23a extending in the circumferential direction thereof. The holding groove 23a receives the flange portion 15b of the projection lens 15, and as shown in FIG. 3 by partially enlarging, a pair of pairing grooves that gradually narrow the width dimension (dimension in the optical axis direction). An inclined surface 23b is provided.

The first mounting plate portion 24 cooperates with both first fixing holes 27 to mount the first member 12 to the heat radiating member 16. The first mounting plate portion 24 has a plate shape extending to both sides in the width direction on the rear side in the optical axis direction of the first reflector 21, and the first mounting holes 28 form a pair at both ends in the width direction. It is provided (see FIG. 2). Both first mounting holes 28 are formed so as to penetrate the first mounting plate portion 24 in the vertical direction.

The shade 13 blocks a part of the light emitted from the first light source 17 to form a cut-off line of a light distribution pattern for passing. The shade 13 is provided between the first member 12 and the second member 14 in the vertical direction and between the first reflector 21 and the projection lens 15 in the optical axis direction. The shade 13 is formed of thin plate-shaped members orthogonal to each other in the vertical direction, and has a shade main body portion 13a forming a cut-off line and a pair of fixing portions 13b for fixing to the heat radiating member 16. The shade main body 13a has a shape in which two horizontal edges having different heights are joined by an inclined edge and extends in the width direction. Each fixing portion 13b extends from the shade main body portion 13a to the front side in the optical axis direction, and is provided with a screw hole 13c. When each fixing portion 13b is fixed to the heat radiating member 16, the shade 13 is arranged in a state in which the shade main body portion 13a extends in the width direction on the horizontal plane including the lens axis La while being orthogonal to the vertical direction (see FIG. 3). ). In that state, the shade 13 is arranged so that the front edge portion 13d of the shade main body portion 13a is located at or near the focal point F of the first reflector 21 and the projection lens 15 (see FIG. 3).

The shade 13 passes by blocking (shading) a part of the light emitted from the first light source 17 and reflected by the first reflecting surface 25 of the first reflector 21 by the front edge portion 13d of the shade main body portion 13a. A cut-off line is formed by connecting two horizontal lines with an inclined line on the upper edge of the light distribution pattern. Further, in the shade 13, the shade main body 13a blocks the light, so that the shade 13 blocks the light on the horizontal plane described above.

The second member 14 is vertically overlapped with the first member 12, and has a second reflector 31, a second frame portion 32, a second lens holding portion 33, and a second mounting plate portion 34. The second reflector 31 is provided on the front side of the first reflecting surface 25 and the first light source 17 in the optical axis direction and on the rear side of the focal point F of the projection lens 15 and below the lens axis La in the vertical direction. (See Fig. 3). The second reflector 31 covers the second light source 18 and has a second reflecting surface 35 facing the second light source 18. The second reflecting surface 35 reflects the light emitted from the second light source 18 to the projection lens 15. The second reflecting surface 35 is formed by adhering a reflecting member such as aluminum or silver to the inner surface of the second reflector 31 facing the second light source 18 by vapor deposition, painting, or the like. The second reflecting surface 35 is a free curved surface based on an ellipse having the second light source 18 as the first focus and the vicinity of the front edge portion 13d of the shade 13 as the second focus.

The second reflector 31 is provided with a light-shielding wall portion 36 at the upper end position of the second reflecting surface 35. The light-shielding wall portion 36 has a flat plate shape orthogonal to the vertical direction, and is provided at a position overlapping the lens axis La. The light-shielding wall portion 36 has a positional relationship in which when the shade 13 is fixed to the heat radiating member 16, the front edge portion 36a on the front side in the front-rear direction is brought into contact with the trailing edge portion 13e of the shade main body portion 13a from above. .. The light-shielding wall portion 36 blocks light in a horizontal plane including the lens axis La on the front side in the optical axis direction of the second reflector 31 (the second reflecting surface 35 thereof), that is, prevents light from passing in the vertical direction through the horizontal plane. To do.

The second frame portion 32 is continuously provided on the front side of the second reflector 31 in the optical axis direction and is provided in pairs at intervals in the width direction, and is projected onto the second reflector 31 (second reflecting surface 35). The distance from the lens 15 is appropriate. Each of the second frame portions 32 has a flat plate shape orthogonal to the vertical direction in the vicinity of the lens axis La in the vertical direction, and has a function of positioning and fixing the second member 14 to the heat radiating member 16. .. The second frame portion 32 forms a space that penetrates the horizontal plane including the lens axis La in the vertical direction at the central portion of the second member 14. Each second frame portion 32 is provided with a protruding portion 37 projecting downward in the vertical direction, and each protruding portion 37 is provided with a second fixing hole 38. Both second fixing holes 38 are formed so as to penetrate the protruding portion 37 from the second frame portion 32 in the vertical direction in the vicinity of the front side of the focal point F of the projection lens 15 and in the vicinity of the lens axis La in the vertical direction. Has been done.

The second lens holding portion 33 is continuously provided on the front side of the second frame portion 32 in the optical axis direction, and holds the lower side of the projection lens 15. The second lens holding portion 33 has a semi-cylindrical shape that is substantially the lower half of the cylindrical shape centered on the lens axis La, and has a holding groove 33a extending in the circumferential direction thereof. The holding groove 33a receives the flange portion 15b of the projection lens 15, and has the same configuration as the holding groove 23a of the first lens holding portion 23, and is provided with a pair of inclined surfaces 33b. The second lens holding portion 33 of the first embodiment is displaced downward in the vertical direction from the second frame portion 32 and does not come into contact with the first lens holding portion 23 of the first member 12, that is, the first. A space is formed between the lens holding portion 23 and the lens holding portion 23 (see FIG. 1 and the like).

The second mounting plate portion 34 cooperates with both second fixing holes 38 to attach the second member 14 to the heat radiating member 16. The second mounting plate portion 34 has a plate shape extending on both sides in the width direction on the rear side in the optical axis direction of the second reflector 31, and the second mounting holes 39 form a pair at both ends in the width direction. It is provided (see FIG. 2). Both second mounting holes 39 are formed so as to penetrate the second mounting plate portion 34 in the vertical direction. The size and position of the second mounting plate portion 34 are arranged so as to be parallel to the first mounting plate portion 24 in the optical axis direction in a state where the first member 12 and the second member 14 are attached to the heat radiating member 16. It is set (see FIGS. 1 and 3).

The projection lens 15 includes a lens body portion 15a which is a convex lens having a circular shape when viewed in the optical axis direction, and a flange portion 15b which surrounds the lens body portion 15a. In the first embodiment of the lens body 15a, the exit surface 15c is a convex surface and the incident surface 15d is a flat surface. The incident surface 15d may be a convex surface or a concave surface as long as the lens body portion 15a (projection lens 15) is a convex lens, and is not limited to the configuration of the first embodiment. The projection lens 15 (lens body 15a) has a lens axis La extending in the optical axis direction. The lens axis La is an optical axis that passes through a position in the lens body 15a that has the largest thickness in the optical axis direction, and the extending direction of the lens axis La is parallel to (matches) the optical axis direction. ..

The lens body 15a sets the focal point F, which is the focal point on the rear side in the optical axis direction, in the vicinity of the front edge portion 13d of the shade 13. The lens body 15a projects light emitted from the first light source 17, reflected by the first reflecting surface 25 of the first reflector 21, and traveling unobstructed by the shade 13 toward the front of the vehicle, and is arranged for passing. Form an optical pattern. Further, the lens body 15a projects the light emitted from the second light source 18 and reflected by the second reflecting surface 35 of the second reflector 31 toward the front of the vehicle to form a traveling light distribution pattern.

The flange portion 15b protrudes from the lens body portion 15a in the radial direction centered on the lens shaft La, and is provided over the entire circumference in the circumferential direction centered on the lens shaft La. The flange portion 15b can be fitted into the holding groove 23a of the first lens holding portion 23 of the first member 12 and the holding groove 33a of the second lens holding portion 33 of the second member 14. As shown in a partially enlarged view of FIG. 3, the flange portion 15b has a thickness dimension (dimension in the optical axis direction) smaller than that of the holding groove 23a and the holding groove 33a. Further, the flange portion 15b is provided with a pair of inclined surfaces 15e at the tip portion thereof, which gradually reduce the thickness dimension.

The heat radiating member 16 is a heat sink member that releases heat generated by the first light source 17 and the second light source 18 to the outside, and is made of an aluminum die-cast or resin having thermal conductivity. The heat radiating member 16 includes a light source installation unit 41 on which the light source unit 11 (the substrate 19 thereof) is installed, a member installation unit 42 on which the first member 12 and the second member 14 are installed, the first member 12, and the shade 13. And a fixing portion 43 to which the second member 14 is fixed.

The light source installation unit 41 has a flat surface orthogonal to the vertical direction, and has a size that allows the substrate 19 of the light source unit 11 to be addressed. The light source installation portion 41 is provided with mounting holes 44 that form a pair at both ends in the optical axis direction. Both mounting holes 44 are screw holes extending in the vertical direction.

The member installation portion 42 is a flat surface that surrounds the light source installation portion 41 and is orthogonal to each other in the vertical direction, and the first mounting plate portion 24 of the first member 12 and the second mounting plate portion 34 of the second member 14 are optical axes. It is sized so that it can be addressed in parallel in the direction (see FIGS. 1 and 3). The member installation portion 42 has a first mounting hole 45 paired in the width direction at the rear end in the optical axis direction and a pair in the width direction on the front side in the optical axis direction from each of the first mounting holes 45. A second mounting hole 46 is provided (see FIG. 2). Both the first mounting holes 45 and the second mounting holes 46 are screw holes extending in the vertical direction.

The fixing portion 43 has fixing arms 47 provided in pairs on both sides in the width direction at the front end portion of the member installation portion 42 in the optical axis direction. Both fixing arms 47 project from the member installation portion 42 diagonally upward on the front side in the optical axis direction, and a fixing surface 48 is provided at the tip thereof. Both fixed surfaces 48 are flat surfaces orthogonal to each other in the vertical direction, and are positioned substantially equal to the lens axis La in the vertical direction. Each fixing surface 48 is provided with a fixing hole 49. Each fixing hole 49 is a screw hole extending in the vertical direction with respect to the corresponding fixed surface 48 in the vicinity of the focal point F of the projection lens 15 (lens body portion 15a) in the optical axis direction. Therefore, the fixing portion 43 fixes the first member 12, the shade 13 and the second member 14 in the vicinity of the focal point F and in the vicinity of the lens axis La while opening the front side of the light source installation portion 41 in the optical axis direction. It is possible.

The vehicle lamp 10 is assembled as follows with reference to FIG. First, the first light source 17 and the second light source 18 are mounted on the substrate 19. The substrate 19 is addressed to the light source installation portion 41 of the heat radiation member 16 from above, and after the two screw members 51 are passed through the mounting holes 19a of the substrate 19, they are screwed into the mounting holes 44 of the light source installation portion 41. Then, it is attached to the light source installation portion 41. As a result, the first light source 17 and the second light source 18 are attached to the heat radiating member 16 in a positioned state.

After that, the second mounting holes 39 are aligned with the second mounting holes 46, the second mounting plate portion 34 is addressed to the member mounting portion 42, and the second fixing holes 38 are aligned with the fixing holes 49. The protruding portion 37 of the second frame portion 32 is directed to the fixing surface 48 of each fixing arm 47 of the fixing portion 43, and the second member 14 is placed on the heat radiating member 16. Next, each screw hole 13c is aligned with each second fixing hole 38, each fixing portion 13b of the shade 13 is placed on each fixing surface 48 of the second member 14, and the holding groove 33a of the second lens holding portion 33 is placed. The lower side of the flange portion 15b of the projection lens 15 is inserted into the. At this time, in the shade 13, the trailing edge portion 13e of the shade main body portion 13a is brought into contact with the front edge portion 36a of the light-shielding wall portion 36 provided on the second reflector 31 (the second reflecting surface 35 thereof). Next, the first mounting holes 28 are aligned with the first mounting holes 45, the first mounting plate portion 24 is addressed to the member mounting portion 42, and the first fixing holes 27 are aligned with the screw holes 13c. The protruding portion 26 of the first frame portion 22 is addressed to the fixed portion 13b, and the first member 12 is placed on the shade 13. At this time, the upper side of the flange portion 15b of the projection lens 15 is inserted into the holding groove 23a of the first lens holding portion 23. As a result, the projection lens 15 is sandwiched and held in the vertical direction by the first lens holding portion 23 of the first member 12 and the second lens holding portion 33 of the second member 14.

Here, the holding groove 23a of the first lens holding portion 23 has two inclined surfaces 23b, the holding groove 33a of the second lens holding portion 33 has two inclined surfaces 33b, and the flange portion 15b of the projection lens 15 has two inclined surfaces 33b. Two inclined surfaces 15e are provided in pairs in the optical axis direction. Further, the dimension (thickness dimension) of the flange portion 15b in the optical axis direction is smaller than the dimension (width dimension) of the holding groove 23a and the holding groove 33a in the optical axis direction. From these facts, the projection lens 15 is considered to be appropriately positioned in the optical axis direction with respect to the first lens holding portion 23 and the second lens holding portion 33. In particular, since a space is formed between the first lens holding portion 23 and the second lens holding portion 33, the front side in the optical axis direction of each protruding portion 26 and each protruding portion 37 is closer to the fixed portion. In the above, there is no contact except that the projection lens 15 is sandwiched in the vertical direction. As a result, the projection lens 15 can reliably contact the inclined surfaces 15e of the flange portion 15b with the inclined surfaces 23b and 33b of the holding grooves 23a and 33a, and the inclined surfaces 15e and the inclined surfaces 23b, respectively. Positioning by 33b can be ensured.

After that, from the upper side in the vertical direction, a pair of screw members 52 are passed through the first fixing holes 27, the screw holes 13c, and the second fixing holes 38, and the fixing holes for the fixing surfaces 48 of the fixing arms 47 of the fixing portion 43. Screw it into 49. Next, from the upper side in the vertical direction, the pair of screw members 53 are screwed into the first mounting holes 45 through the first mounting holes 28, and the pair of screw members 54 are screwed into the first mounting holes 45 through the second mounting holes 39. 2 Screw it into the mounting hole 46. As a result, the first member 12, the shade 13, and the second member 14 are attached to the heat radiating member 16 in this order from the upper side in the vertical direction, and the projection lens 15 is placed between the first member 12 and the second member 14. It is held and the vehicle lamp 10 is assembled.

Next, the operation of the vehicle lamp 10 will be described with reference to FIG. The vehicle lamp 10 is provided in the lamp chamber, and an external connector is connected to the light source 11 via the connector connection. The vehicle lamp 10 supplies power from a lighting control circuit via an external connector and a connector connection portion to a light source unit 11 (the first light source 17 and the second light source 18), thereby supplying power to the first light source 17 and the second light source. 18 can be turned on and off as appropriate.

The vehicle lighting tool 10 appropriately lights the first light source 17 by supplying electric power from the lighting control circuit from the substrate 19 to the first light source 17. The light emitted from the first light source 17 is reflected by the first reflecting surface 25 of the first reflector 21 and passes above the second reflector 31 including the light-shielding wall portion 36 and the shade 13 (shade body portion 13a). It enters the incident surface 15d of the projection lens 15 below the lens axis La via the vicinity of the focal point F. At this time, a part of the light from the first light source 17 is shielded by the shade main body 13a to form a shape along the front edge 13d, and is projected by the projection lens 15 to cut off the light on the upper edge. Form a light distribution pattern for passing each other.

Further, the vehicle lighting tool 10 appropriately lights the second light source 18 by supplying electric power from the lighting control circuit from the substrate 19 to the second light source 18. The light emitted from the second light source 18 is reflected by the second reflecting surface 35 of the second reflector 31 and passes under the second reflector 31 including the light-shielding wall portion 36 and the shade 13 (shade body portion 13a). After passing through the vicinity of the focal point F, the light is incident on the incident surface 15d of the projection lens 15 above the lens axis La. At this time, in the heat radiating member 16, the fixing portion 43 opens the front side of the light source installation portion 41 in the optical axis direction, and in the second frame portion 32, a horizontal plane including the lens shaft La is formed in the central portion of the second member 14. Since a space penetrating in the vertical direction is formed, it is possible for the light from the second light source 18 to travel as described above. This light is projected by the projection lens 15 to form a traveling light distribution pattern by superimposing the lower end portion on the upper end portion of the passing light distribution pattern.

The vehicle lighting fixture 10 of the first embodiment is an ADB (Adaptive Driving Beam), and when a plurality of light emitting elements in the second light source 18 are turned on, each light is used for traveling. A light distribution portion is formed by dividing the light pattern in the width direction. Therefore, the vehicle lamp 10 can turn on and off the light distribution portion in a specific direction among the plurality of light distribution portions by individually turning on and off each light emitting element of the second light source 18, and is used for traveling. It is possible to partially turn off the dots in any direction in the light pattern.

In this way, the vehicle lamp 10 can form a passing light distribution pattern having a cut-off line by turning on the first light source 17, and can provide light distribution at the time of passing (so-called low beam). Further, the vehicle lighting tool 10 can form a traveling light distribution pattern by partially overlapping the passing light distribution pattern by lighting the second light source 18 in addition to the first light source 17, and the traveling light distribution pattern can be formed. (So-called high beam) can be used. Then, the vehicle lamp 10 can selectively form only the corresponding light distribution portion by turning on and off the light emitting element corresponding to the arbitrary light distribution portion among the light emitting elements of the second light source 18. It can realize the function of ADB.

Next, the operation of the vehicle lamp 10 will be described. The vehicle lamp 10 is provided with a second reflector 31 (second reflecting surface 35) on the front side of the first reflector 21 (first reflecting surface 25) in the optical axis direction, and the second reflector 31 is located on the lens shaft La. It is located on the lower side and the first reflector 21 covers the second reflector 31. Therefore, the vehicle lamp 10 emits the light emitted from the first light source 17 and reflected by the first reflector 21 from the periphery of the second reflector 31 through the upper side of the shade 13 and enters the projection lens 15 through the focal point F. Can be made to. Further, the vehicle lamp 10 transmits the light emitted from the second light source 18 and reflected by the second reflector 31 through the lower side of the shade 13 and the focal point F to the upper side of the lens axis La of the projection lens 15. It can be incident. For these reasons, the vehicle lamp 10 provides the first light source 17 and the second light source 18 on the same plane, and projects the light emitted from the light sources 17 and 18 forward from the projection lens 15, respectively. Therefore, the first light source 17 can form a light distribution pattern for passing, and the second light source 18 can form a light distribution pattern for traveling. As a result, the vehicle lamp 10 can flatten the location where both light sources 17 and 18 are attached (light source installation portion 41 in Example 1), and the member to which both light sources 17 and 18 are attached (heat dissipation member 16 in Example 1). ) Can be simplified. Therefore, the vehicle lamp 10 can simplify the shape of the installation location (heat dissipation member 16) in which the first light source 17 and the second light source 18 are installed, and the first light source 17 and the second light source 18 are mounted on the same substrate 19. It can be provided in, and a simple configuration can be made.

Further, in the vehicle lamp 10, a light-shielding wall portion 36 is provided at the front end of the second reflector 31 (second reflecting surface 35), and the trailing edge portion 13e of the shade main body portion 13a comes into contact with the front edge portion 36a thereof. A shade 13 is provided. The shade main body 13a is provided on a horizontal plane including the lens axis La with the front edge 13d in the vicinity of the focal point F of the projection lens 15, and the light-shielding wall 36 is also provided on the horizontal plane on the rear side. There is. Therefore, the vehicle lamp 10 includes the lens axis La by the shade 13 and the light-shielding wall portion 36 between the focal point F of the projection lens 15 and the second reflector 31 (second reflecting surface 35) in the optical axis direction. Light can be blocked on a horizontal surface. For this reason, in the vehicle lamp 10, the shade 13 and the light-shielding wall portion 36 function as a light-shielding portion between the focal point of the projection lens 15 and the second reflector 31 in the optical axis direction (direction in which the lens axis La extends). To do.

As a result, the vehicle lamp 10 emits the light emitted from the first light source 17 and reflected by the first reflector 21 (first reflecting surface 25) above the focal point F on the focal plane (image plane) including the focal point F. Can be passed through. Therefore, in the vehicle lamp 10, the light from the first light source 17 is projected to an unexpected position in the region forming the traveling light distribution pattern (on the projection surface, above the lens axis La (horizontal line)). This can be reliably prevented, and a light distribution pattern for passing can be appropriately formed. Further, the vehicle lamp 10 allows the light emitted from the second light source 18 and reflected by the second reflector 31 (second reflecting surface 35) to pass below the focal point F on the focal plane including the focal point F. Can be done. Therefore, in the vehicle lamp 10, the light from the second light source 18 is projected at an unexpected position in the region forming the passing light distribution pattern (on the projection surface, below the lens axis La (horizontal line)). This can be reliably prevented, and a light distribution pattern for traveling can be appropriately formed.

Further, the vehicle lamp 10 is provided with the first member 12 provided with the first reflector 21 and positioned and held the upper portion of the projection lens 15, and the second reflector 31 and positioned the lower portion of the projection lens 15. A second light source 18 to be held is used. Then, the vehicle lamp 10 is attached to the heat radiating member 16 in a state where the first member 12, the shade 13 and the second member 14 are positioned by screwing the pair of screw members 52 into the fixing holes 49. Fix it. Therefore, the vehicle lamp 10 has the positional relationship between the first reflector 21, the second reflector 31, the shade 13, and the projection lens 15 together with the first light source 17 and the second light source 18, which are also attached to the heat radiating member 16. , Can be made suitable by simple installation work. In particular, in the vehicle lamp 10 of the first embodiment, both screw members 51 may be screwed into the heat radiating member 16 from above with respect to the substrate 19 on which the first light source 17 and the second light source 18 are mounted. In addition, each screw member (52 to 54) can be screwed through from the upper side with the first member 12, the shade 13, the second member 14, and the projection lens 15 placed on the upper side. Therefore, in the vehicle lamp 10 of the first embodiment, all the assembling operations can be performed from the upper side of the heat radiating member 16, and the assembling process can be simplified.

In addition, the vehicle lamp 10 has a projection lens 15 in the optical axis direction in each fixing hole 49 into which both screw members 52 for fixing the first member 12, the shade 13 and the second member 14 to the heat radiation member 16 are screwed. It is provided near the focal point F of (lens body 15a). Therefore, in the vehicle lighting fixture 10, both members (12, 14) can be fixed to the heat radiating member 16 in the vicinity of the center of the long first member 12 and the second member 14 in the optical axis direction, and both members (12). , 14) can be stably fixed to the heat radiating member 16.

In the vehicle lamp 10 of the first embodiment, the first light source 17 and the second light source 18 are attached to the light source installation portion 41 of the heat radiating member 16 via the substrate 19. Here, in a heat sink, heat is generally transferred radially from a heat source, so that the cooling performance can be improved by securing a concentric spherical portion having a large volume centered on the heat source. Since the light source installation portion 41 of the heat radiating member 16 is flattened in the vehicle lamp 10 It is easy to secure concentric spherical portions having a large volume below each of the light source 17 and the second light source 18. Therefore, the vehicle lamp 10 can secure a volume for heat transfer to each of the first light source 17 and the second light source 18 in the heat radiating member 16, and the first light source 17 and the second light source 18 can be used. Can be cooled properly.

The vehicle lamp 10 of the first embodiment can obtain the following effects.

The vehicle lamp 10 projects the light emitted from the first light source 17 and reflected by the first reflector 21 to form a light distribution pattern for passing, and is emitted from the second light source 18 and is emitted by the second reflector 31. A projection lens 15 for projecting reflected light to form a traveling light distribution pattern is provided. The vehicle lamp 10 is provided with the first light source 17 and the second light source 18 on the same plane below the lens axis La, and the second reflector 31 is below the lens axis La and is the first reflector. It is provided on the front side in the optical axis direction (direction of the lens axis La) with respect to 21. Therefore, even if the first light source 17 and the second light source 18 are provided on the same plane, the vehicle lamp 10 includes the light emitted from the first light source 17 and reflected by the first reflector 21 and the second light source 18. The light emitted from the light source and reflected by the second reflector 31 can be incident on the projection lens 15. As a result, the vehicle lamp 10 can simplify the shape of the installation location where the first light source 17 and the second light source 18 are installed (in the first embodiment, the light source installation portion 41 of the heat radiating member 16 as an example), and the first of the installation locations. The light source 17 and the second light source 18 can be provided on the same substrate 19, and a simple configuration can be made.

The vehicle lamp 10 has a light-shielding portion (shade 13 and a light-shielding wall portion 36 in the first embodiment) that blocks light on a horizontal plane including the lens axis La between the focal point F of the projection lens 15 and the second reflector 31 in the optical axis direction. ) Is provided. Therefore, the vehicle lamp 10 can prevent the light from the first light source 17 from irradiating the traveling light distribution pattern side and the light from the second light source 18 from irradiating the passing light distribution pattern side. , The light distribution pattern for passing and the light distribution pattern for traveling can be appropriately formed.

The vehicle lamp 10 is a plate-shaped member extending along the optical axis direction, and has a shade 13 that blocks a part of the light emitted from the first light source 17 to form a cut-off line in a light distribution pattern for passing. Be prepared. Further, in the vehicle lamp 10, the light emitted from the first light source 17 passes above the shade 13 and is incident on the lower side of the lens axis La of the projection lens 15, and the light emitted from the second light source 18. Is incident on the upper side of the lens axis La in the projection lens 15 through the lower side of the shade 13. For this reason, the vehicle lamp 10 forms the optical path of the light from the first light source 17 and the optical path of the light from the second light source 18 separately above and below the shade 13, so that the space can be used efficiently. A light distribution pattern for passing and a light distribution pattern for traveling can be appropriately formed.

In the vehicle lighting equipment 10, the shade 13 forms at least a part of the light-shielding portion. Therefore, since the vehicle lamp 10 forms at least a part of the light-shielding portion by using the shade 13 that forms the cut-off line, the shade 13 can also be used, and a simple configuration can be made.

The vehicle lamp 10 includes a first member 12 provided with a first reflector 21 extending to the projection lens 15, a second member 14 provided with a second reflector 31 extending to the projection lens 15, a first light source 17 and a first member. The heat radiating member 16 to which the two light sources 18 are fixed is provided. In the vehicle lamp 10, the first member 12, the shade 13, and the second member 14 are fixed to the heat radiating member 16 by a common fixing member (a pair of screw members 52 in the first embodiment). Therefore, the vehicle lamp 10 has an appropriate positional relationship between the first light source 17, the second light source 18, the first reflector 21, the second reflector 31, and the shade 13 while simplifying the assembly work. Can be done.

The vehicle lamp 10 is provided with a screw member 52 as a common fixing member in the vicinity of the focal point F in the optical axis direction. Therefore, in the vehicle lighting fixture 10, both members (12, 14) can be fixed to the heat radiating member 16 in the vicinity of the center of the long first member 12 and the second member 14 in the optical axis direction, and both members (12). , 14) can be stably fixed to the heat radiating member 16.

The vehicle lamp 10 holds the projection lens 15 by sandwiching it between the first member 12 and the second member 14. Therefore, the vehicle lamp 10 has an appropriate positional relationship of the projection lens 15 with respect to the first light source 17, the second light source 18, the first reflector 21, the second reflector 31, and the shade 13 while simplifying the assembly work. Can be made into something.

Therefore, the vehicle lamp 10 of the first embodiment as the vehicle lamp according to the present disclosure can form a light distribution pattern for passing and a light distribution pattern for traveling while having a simple configuration.

Next, the vehicle lamp 10A of the second embodiment, which is one embodiment of the present disclosure, will be described with reference to FIGS. 4 to 6. The vehicle lamp 10A is a modification of the configuration of the first member 12 and the second member 14 of the vehicle lamp 10 of the first embodiment. Since the basic concept and configuration of the vehicle lighting fixture 10A are the same as those of the vehicle lighting fixture 10 of the first embodiment, the same reference numerals are given to the parts having the same configuration, and detailed description thereof will be omitted.

In the vehicle lamp 10A of the second embodiment, the upper lens portion 61 is provided at the tip end (the end portion on the front side in the optical axis direction) of the first lens holding portion 23A in the first member 12A. The upper lens portion 61 constitutes an upper portion of the projection lens 15A that is above the lens axis La in the vertical direction, and has a semicircular shape when viewed from the front side in the optical axis direction. The upper lens portion 61 has a flat upper divided surface 61a whose lower end includes the lens shaft La.

Further, in the vehicle lamp 10A, the lower lens portion 62 is provided at the tip end (the end portion on the front side in the optical axis direction) of the second lens holding portion 33A in the second member 14A. The lower lens portion 62 constitutes the lower half of the projection lens 15A, which is lower than the lens axis La in the vertical direction, and has a semicircular shape when viewed from the front side in the optical axis direction. The lower lens portion 62 has a flat lower split surface 62a whose upper end includes the lens shaft La.

In the vehicle lamp 10A, the first member 12A and the second member 14A are each made of the same transparent resin. The first member 12A is provided with an upper lens portion 61 integrally with the first lens holding portion 23A together with the first reflector 21, the first frame portion 22, and the first mounting plate portion 24. Since the first member 12A is formed of a transparent resin, it may be appropriately vapor-deposited on a portion other than the first reflecting surface 25 of the first reflector 21 where light from the first light source 17 may leak. A reflective member such as aluminum or silver is adhered by painting or the like to reflect light, or a light-shielding member is adhered to prevent light transmission.

Further, the second member 14A is provided with a lower lens portion 62 integrally with the second lens holding portion 33A together with the second reflector 31, the second frame portion 32, and the second mounting plate portion 34. In the second member 14A, since it is formed of a transparent resin, a reflective member such as aluminum or silver is appropriately adhered to the light-shielding wall portion 36 of the second reflector 31 by vapor deposition, painting, or the like to reflect light. Alternatively, a light-shielding member may be adhered to prevent light transmission. As a result, it is possible to prevent light from passing in the vertical direction through the horizontal plane including the lens axis La by the light-shielding portion including the light-shielding wall portion 36. For example, the light from the first light source 17 is the second from the rear side of the second reflector 31. 2 It is possible to prevent light other than the controlled object from irradiating the traveling light distribution pattern side as in the case where the light is reflected toward the reflecting surface 35. Further, the second member 14A reflects the light at a place other than the second reflecting surface 35 and the light-shielding wall portion 36 where the light from the second light source 18 may leak, as in the first member 12A. It shall be made to be allowed, or it shall be made to prevent the transmission of light.

Next, the assembly and operation of the vehicle lamp 10A will be described. The vehicle lighting fixture 10A is assembled in the same manner as the vehicle lighting fixture 10 of the first embodiment, except that the step of sandwiching the projection lens 15 between the first lens holding portion 23 and the second lens holding portion 33 of the first embodiment is eliminated. be able to. Then, when the vehicle lamp 10A is assembled, the upper split surface 61a of the upper lens portion 61 of the first member 12A and the lower split surface 62a of the lower lens portion 62 of the second member 14A are brought into contact with each other on the surface. The projection lens 15A is formed. Therefore, in the projection lens 15A, the combined upper division surface 61a and the lower division surface 62a function as division surfaces for dividing the projection lens 15A. The projection lens 15A is the same as the projection lens 15 of the first embodiment except that it is divided by the dividing surface, and the exit surface 15c is a single surface (convex surface in the second embodiment). At the same time, the incident surface 15d is a single surface (flat surface in Example 2).

Here, in the projection lens 15A, the upper dividing surface 61a and the lower dividing surface 62a are aligned on the lens axis La, but the combined portion has almost no effect on each light distribution pattern. This is due to the following. As shown in FIG. 6, the light from the first light source 17 to the first reflector 21 passes above the shade 13 (shade body 13a), passes through the focal point F of the projection lens 15A, and enters the lower lens portion 62. , Projected forward to form a passing light distribution pattern. Further, the light passing through the second reflector 31 from the second light source 18 passes under the shade 13 (shade body portion 13a), passes through the focal point F of the projection lens 15A, enters the upper lens portion 61, and is projected forward. To form a light distribution pattern for traveling. Therefore, in the projection lens 15A, very little light passes through the surface (horizontal plane including the lens axis La) where the upper division surface 61a and the lower division surface 62a are combined. Further, in the projection lens 15A, since the first member 12A and the second member 14A are made of the same transparent resin, if they are in close contact with each other, light is refracted when passing through both surfaces (61a, 62a). Is almost nonexistent. From these facts, in the projection lens 15A, the influence on each light distribution pattern due to the combination of both sides (61a, 62a) can be almost eliminated.

Compared to the vehicle lamp 10 of the first embodiment, the vehicle lamp 10A does not require a step of installing the projection lens 15A, so that the assembly work can be simplified and the number of parts can be simplified. Can be reduced. Further, in the vehicle lighting fixture 10A, since the projection lens 15A is formed by the upper lens portion 61 of the first member 12A and the lower lens portion 62 of the second member 14A, the first reflector 21 also provided in the first member 12A. And the positional relationship of the projection lens 15A with respect to the second reflector 31 provided on the second member 14A can be made more appropriate.

Further, in the vehicle lamp 10A, since the projection lens 15A is divided into the upper lens portion 61 and the lower lens portion 62 by the dividing surface including the lens shaft La, the time required for molding from the resin material can be shortened. At the same time, it is possible to suppress the occurrence of sink marks. This is because, in resin molding, it takes time and sinks are likely to occur at the thickest part (thick part).

The vehicle lamp 10A of the second embodiment can obtain the following effects. Since the vehicle lamp 10A basically has the same configuration as the vehicle lamp 10 of the first embodiment, the same effect as that of the first embodiment can be obtained.

In addition, in the vehicle lamp 10A, the projection lens 15A is formed by the upper lens portion 61 of the first member 12A and the lower lens portion 62 of the second member 14A, so that the number of parts can be reduced and the assembly work can be performed. Can be made simpler, and the positional relationship of the projection lens 15A with respect to the first reflector 21 and the second reflector 31 can be made more appropriate.

Therefore, the vehicle lamp 10A of the second embodiment as the vehicle lamp according to the present disclosure can form a light distribution pattern for passing and a light distribution pattern for traveling while having a simple configuration.

In the second embodiment, the upper lens portion 61 of the first member 12A and the lower lens portion 62 of the second member 14A form the projection lens 15A, but other configurations may be used, and the configuration of the second embodiment may be used. Not limited to. For example, the positions of the division surfaces (upper division surface 61a, lower division surface 62a) between the upper lens portion 61 and the lower lens portion 62 in the projection lens 15A may be appropriately set, and are not limited to the configuration of the second embodiment.

Further, in the second embodiment, the divided surfaces (upper divided surface 61a, lower divided surface 62a) of the upper lens portion 61 and the lower lens portion 62 in the projection lens 15A are simply brought into contact with each other, but the upper divided surface 61a The degree of close contact with the lower dividing surface 62a may be increased, and the configuration is not limited to that of the second embodiment. For example, the upper split surface 61a and the lower split surface 62a may be adhered to each other using an adhesive. With this configuration, the adhesive is used by using a transparent material having a refractive index equal to or close to that of the upper lens portion 61, that is, the first member 12A and the lower lens portion 62, that is, the second member 14A. The effect on the light distribution pattern caused by this can be suppressed. Further, for example, the upper lens portion 61 and the lower lens portion 62 may be subjected to a force that brings the upper division surface 61a and the lower division surface 62a into close contact with each other by a screw member or the like provided around the projection lens 15A. Good. With this configuration, it is possible to suppress the influence on the light distribution pattern due to the presence of air or the like between the two dividing surfaces (61a, 62a).

Further, in the second embodiment, the projection lens 15A is divided by the dividing surfaces (upper divided surface 61a, lower divided surface 62a) and provided on both the first member 12A and the second member 14A. However, as shown in FIG. 7, the projection lens 15B may be provided on either one of the first member 12B and the second member 14B without being divided, and is not limited to the configuration of the second embodiment. The vehicle lamp 10B of the example of FIG. 7 is provided with a projection lens 15B at the tip (the end on the front side in the optical axis direction) of the first lens holding portion 23B of the first member 12B, and the second member 14B is the second. The tip of the lens holding portion 33B is a contact surface 33c. The vehicle lamp 10B can be assembled in the same manner as the vehicle lamp 10A of the second embodiment except that the contact surface 33c is addressed to the peripheral edge portion 15f of the projection lens 15B, and the same effect can be obtained. .. This is the same even when the projection lens 15B is provided on the second member 14B. In addition, since the projection lens 15B can be formed by a single member of the vehicle lamp 10B without providing the dividing surface, it is possible to eliminate the unexpected influence caused by providing the dividing surface.

Although the vehicle lamps of the present disclosure have been described based on each embodiment, the specific configuration is not limited to each embodiment and deviates from the gist of the invention according to each claim within the scope of claims. Unless otherwise, design changes and additions are allowed.

In each embodiment, the first reflector 21 covers the second reflector 31. However, if the second reflector 31 is provided below the lens axis La and in front of the first reflector 21 in the optical axis direction, the sizes of the first reflector 21 and the second reflector 31 are appropriate. It may be set and is not limited to the configuration of each embodiment.

Further, in each embodiment, the trailing edge portion 13e of the shade body portion 13a of the shade 13 and the front edge portion 36a of the light-shielding wall portion 36 are brought into contact with each other, and the shade 13 (shade body portion 13a) and the light-shielding wall portion are brought into contact with each other. 36 constitutes a light-shielding portion. However, the light-shielding portion prevents light from passing in the vertical direction on the horizontal plane including the lens axis La between the focal point F of the projection lens 15 and the second reflector 31 (second reflecting surface 35) in the optical axis direction. It does not have to be limited to the configuration of each embodiment. The light-shielding portion may be formed only by the shade 13 (shade main body portion 13a), may be formed only by the light-shielding wall portion 36, or may have another configuration.

10, 10A, 10B Vehicle lighting fixtures 12, 12A, 12B First member 13 (Consists of a part of the light-shielding part as an example) Shade 14, 14A, 14B Second member 15, 15A, 15B Projection lens 16 Heat dissipation member 17 1st light source 18 2nd light source 21 1st reflector 31 2nd reflector 36 (which constitutes a part of a light-shielding part as an example) Light-shielding wall part 52 (as an example of a common fixing member) Screw member 61 Upper lens part 61a Upper split surface (as an example of the split plane) 62 Lower lens portion 62a (As an example of the split plane) Lower split plane La Lens shaft

Claims (9)

A first reflector that reflects the light emitted from the first light source,
A second reflector that reflects the light emitted from the second light source,
A projection lens that projects the light reflected by the first reflector to form a light distribution pattern for passing each other and projects the light reflected by the second reflector to form a light distribution pattern for traveling. ,
The first light source and the second light source are provided on the same plane below the lens axis of the projection lens.
The second reflector is a vehicle lamp that is below the lens shaft and is provided on the front side in the optical axis direction in which the lens shaft extends from the first reflector. The vehicle lamp according to claim 1.
Further, a vehicle lamp is provided with a light-shielding portion that blocks light on a horizontal plane including the lens axis between the focal point of the projection lens and the second reflector in the direction of the optical axis. The vehicle lamp according to claim 2.
Further, the plate-shaped member extending along the optical axis direction is provided with a shade that blocks a part of the light emitted from the first light source to form a cut-off line in the passing light distribution pattern.
The light emitted from the first light source passes above the shade and enters below the lens axis of the projection lens.
A vehicle lighting fixture characterized in that light emitted from the second light source passes under the shade and is incident on the upper side of the lens axis of the projection lens. The vehicle lamp according to claim 3, wherein the shade forms at least a part of the light-shielding portion. The vehicle lamp according to claim 3 or 4.
Further, a first member provided with the first reflector and extending to the projection lens, and
A second member provided with the second reflector and extending to the projection lens,
A heat radiating member to which the first light source and the second light source are fixed is provided.
A vehicle lamp, characterized in that the first member, the shade, and the second member are fixed to the heat radiating member by a common fixing member. The vehicle lamp according to claim 5, wherein the fixing member is provided in the vicinity of the focal point in the optical axis direction. The vehicle lamp according to claim 5 or 6, wherein the projection lens is sandwiched between the first member and the second member. The projection lens is divided into an upper lens portion and a lower lens portion by a dividing surface including the lens axis.
The upper lens portion is formed integrally with the first member.
The vehicle lamp according to claim 5 or 6, wherein the lower lens portion is integrally formed with the second member. The vehicle lamp according to claim 5 or 6, wherein the projection lens is integrally formed with either one of the first member and the second member.