JP2018073776A - Vehicular lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular lamp capable of suppressing an unexpectedly place to be illuminated brightly.SOLUTION: A vehicular lamp 10 includes: a projection lens 15 configured to project light emitted from a light source 11 forward; a reflector member 13 configured to reflect light emitted from the light source 11 toward the projection lens 15; a shade 32 configured to shade part of light emitted from the light source 11 to form a cut-off line of a light distribution pattern, and provided in a rotatable manner; and light shading pieces 27, 28 configured to shade, before reaching an opening part 49, light reflected on the reflector member 13 and propagating forward from the projection lens 15 through the opening part 49 provided at a center of the shade 32.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicular lamp that can obtain a plurality of light distribution patterns.

  For example, a vehicular lamp that can form a plurality of light distribution patterns such as a passing light distribution pattern and a traveling light distribution pattern is known.

  Such a vehicular lamp is considered to form a plurality of light distribution patterns by displacing the shade between a position where a part of light from the light source is blocked and a position where the light is not blocked (for example, , See Patent Document 1). The conventional vehicle lamp can provide a plurality of light distribution patterns by providing a shade in a rotatable manner and displacing the shade at the two positions described above by rotation.

JP2011-258485A

  However, the above-described conventional vehicular lamp transmits the operation of the drive unit to the shade so that the shade is rotated and displaced at two positions, and a transmission piece for transmitting the operation of the drive unit is provided. An opening is formed at the center of the shade. Then, the vehicular lamp may unintentionally emit part of the light from the light source through the opening, and may brightly illuminate an unplanned position.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a vehicular lamp that can suppress bright illumination of an unplanned position.

  The vehicular lamp of the present invention includes a projection lens that projects light emitted from a light source forward, a reflector member that reflects the light emitted from the light source to the projection lens, and one of the light emitted from the light source. Light is cut off to form a cut-off line of the light distribution pattern, and travels forward from the projection lens through a shade provided rotatably and an opening provided in the center of the shade reflected by the reflector member. And a light shielding piece that blocks light before reaching the opening.

  According to the vehicular lamp of the present invention, it is possible to suppress bright illumination of an unplanned position.

It is a typical perspective view which decomposes | disassembles and shows each structure of the vehicle lamp 10 as an example which concerns on one Embodiment of the vehicle lamp which concerns on this invention. It is explanatory drawing which shows the structure of the vehicle lamp 10 in a schematic cross section. It is explanatory drawing which shows a mode that the edge part by the side of the shade 32 in the heat sink member 12 of the vehicle lamp 10 was seen from back diagonally upward. It is explanatory drawing which shows the shade 32 of the shade unit 14 of the vehicle lamp 10. FIG. FIG. 3 is a schematic perspective view showing each configuration of a shade 32 in an exploded manner. It is explanatory drawing which shows the cross section which looked at the shade unit 14 in the width direction, and is equivalent to the cross section which follows the II line | wire of FIG. It is explanatory drawing which shows a mode that the shade unit 14 was seen from the front.

  Hereinafter, a first embodiment of a vehicular lamp 10 as an example of a vehicular lamp according to the present invention will be described with reference to the drawings. 1 shows the front side of the yoke 52 open for easy understanding of the configuration of the solenoid 33, and FIG. 2 shows each configuration in a simple manner for easy understanding of the configuration of the vehicular lamp 10. The lens holder 16 is omitted while showing a cross section, and FIG. 6 shows each configuration in a simple cross section in order to facilitate understanding of the configuration and operation of the shade unit 14. FIGS. 2 and 6 show one bearing piece 44 having a second positioning piece 47 in the rotation base 41 of the shade 32.

  The vehicle lamp 10 of Example 1 which concerns on one Embodiment of the vehicle lamp which concerns on this invention is demonstrated using FIGS. 1-7. The vehicular lamp 10 according to the first embodiment is used to configure a headlamp for a vehicle such as an automobile. The headlamps are respectively mounted on the left and right sides of the front portion of the vehicle, and the vehicle lamp 10 is provided in a lamp chamber formed by a lamp housing whose opened front end is covered with an outer lens. The vehicular lamp 10 is provided in the lamp chamber via an up / down direction optical axis adjustment mechanism or a left / right direction optical axis adjustment mechanism, and appropriately illuminates the front of the vehicle.

  As shown in FIGS. 1 and 2, the vehicular lamp 10 according to the first embodiment includes a light source 11, a heat sink member 12, a reflector member 13, a shade unit 14, a projection lens 15, a lens holder 16, and a cooling fan unit 17. A projector type headlamp unit is configured. The vehicular lamp 10 can switch the light distribution pattern by using the shade unit 14, and in the first embodiment, a low beam light distribution pattern (passing light distribution pattern) and a high beam light distribution pattern (traveling light distribution pattern) It is possible to switch with. In the following description, in the vehicular lamp 10, the direction along the optical axis of the reflector member 13 and the projection lens 15 described later is the optical axis direction (the projection lens 15 side is the front side), and the vehicle lamp 10 is mounted on the vehicle. The vertical direction is the vertical direction, and the direction perpendicular to the optical axis direction and the vertical direction is the width direction.

  The light source 11 is configured by mounting a light emitting element 11b which is a light emitting diode on a substrate 11a. The substrate 11 a is disposed on the base portion 21 of the upper surface 12 a of the heat sink member 12, and a power supply holder 22 is attached from above. The terminals of the substrate 11 a are connected to terminals provided on the power supply holder 22 and fixed to the upper surface 12 a. Is done. For this reason, the heat sink member 12 functions as an installation base portion on which the light source 11 is provided. As a result, the light source 11 is appropriately lighted by supplying power from the lighting control circuit to the light emitting element 11b via the power supply holder 22.

  The heat sink member 12 is a heat radiating member that releases heat generated by the light source 11 provided on the upper surface 12a to the outside, and radiates heat from a plurality of heat radiating fins 23 provided on the lower surface. This heat sink member 12 is provided with two sets of screw holes 12b and guide projections 12c on the upper surface 12a (FIG. 1 shows only the rear side), four mounting portions 24 projecting forward, and a pair of fixed surface portions on the front surface. 25 and a pair of fixed protrusions 26 protruding forward. Each mounting portion 24 and each fixing projection 26 have a screw hole 24a and a screw hole 26a. Each fixed surface portion 25 has a guide protrusion 25a and a screw hole 25b that protrude forward. The heat sink member 12 is fixed to the lamp housing through each mounting portion 24 (its screw hole 24a).

  Moreover, the heat sink member 12 has the 1st light-shielding piece 27, as shown in FIG. 1 and FIG. The first light shielding piece 27 is formed to extend in the width direction while partially protruding at the front end (shade 32 side described later) of the upper surface 12a. The first light shielding piece 27 is positioned in the vicinity of the focal positions of the reflector member 13 and the projection lens 15 by being positioned at the front end of the heat sink member 12. The first light shielding piece 27 is positioned on a path (a first path P1 (see FIG. 2) described later) from the vicinity of the base of the reflector member 13 to the projection lens 15 through an opening 49 (described later) of the shade 32.

  As shown in FIGS. 1 and 2, the reflector member 13 reflects light emitted from the light source 11 toward the projection lens 15. In the reflector member 13, the guide protrusion 12c on the upper surface 12a of the heat sink member 12 is inserted into the guide hole 13a provided on the periphery, and the screw member that has passed through the screw hole 13b is screwed into the screw hole 12b on the upper surface 12a. The heat sink member 12 (upper surface 12a) is positioned and fixed.

  As shown in FIGS. 1 and 2, the projection lens 15 projects the light reflected by the reflector member 13 toward the front of the vehicle, and cooperates with the reflector member 13 to provide a predetermined light distribution pattern (low beam light distribution pattern). And a high beam distribution pattern). The projection lens 15 is positioned with respect to the light source 11 and the reflector member 13 by being supported by the lens holder 16. The lens holder 16 is paired in the width direction (only the front side is shown), and has a guide hole 16a and a screw hole 16b arranged in the vertical direction, and a screw hole 16c above the guide hole 16a.

  The shade unit 14 switches the light distribution of the projection light projected by the projection lens 15 between a low beam light distribution pattern and a high beam light distribution pattern. The shade unit 14 includes a bracket plate 31, a shade 32 that is displaced for switching, a solenoid 33 that serves as a drive unit that operates to displace the bracket plate 31, a link mechanism 34 that transmits the operation to the shade 32, Is provided. The bracket plate 31 is formed by appropriately bending a plate-like member, a bearing portion 35 is provided at the upper edge portions of the left and right ends, and a connection opening 36 is provided at the center left side (front side when viewed from the front in FIG. 1). . Each of the bearing portions 35 is formed by appropriately cutting and bending the upper edge portion of the bracket plate 31 and supports the rotating shaft 37 in a rotatable manner. In addition, the bracket plate 31 is provided with a guide hole 31a and a screw hole 31b which are paired vertically at both left and right ends.

  The shade 32 blocks a part of the light emitted from the light source 11 and forms a cut-off line of the light distribution pattern. The shade 32 is provided on the bracket plate 31 so as to be rotatable about a rotation shaft 37. As shown in FIGS. 4 and 5, in the first embodiment, the shade 32 is configured by attaching a thin plate-like first shade portion 42 and a second shade portion 43 to a plate-like rotation base 41.

  The rotation base 41 is provided with a pair of bearing pieces 44 on both sides, and a rotation shaft 37 (see FIG. 6 and the like) is inserted into a shaft hole 44a formed in each. One end of the rotating shaft 37 is attached to the receiving portion of the bracket plate 31, and the other end is passed through a small hole 41 a (see FIG. 4 and the like) of the rotating base 41 of the shade 32. 7). The torsion coil spring 45 applies a rotational force in a direction in which the first shade portion 42 and the second shade portion 43 approach the projection lens 15 to the rotation base portion 41 that is rotatable with respect to the bracket plate 31.

  The rotation base 41 includes a pair of first positioning pieces 46, second positioning pieces 47, a transmission piece 48, and an opening 49. The first positioning pieces 46 are provided in pairs on the left and right below the bearing pieces 44. The second positioning piece 47 is provided above the bearing piece 44 on one side (the front side when FIG. 4 is viewed from the front). The transmission piece 48 is formed by bending a portion where the center of the rotation base 41 in the width direction is cut out in a U shape. The opening 49 is formed at a position where the transmission piece 48 before being bent exists. Thereby, the rotation base 41 can provide the transmission piece 48 at a low cost while preventing an increase in weight. Note that the transmission piece 48 may be formed by bending the other cut-out side, and is not limited to the configuration of the first embodiment. The transmission piece 48 has a transmission hole 48a and is positioned closer to the projection lens 15 than the shaft hole 44a of both bearing pieces 44 as shown in FIG. The transmission piece 48 is provided in the center of the rotation base 41 (shade 32) in the width direction, and efficiently transmits the operation of the solenoid 33 via the link mechanism 34 (its later-described torsion coil spring 54) to the rotation base 41. The center in the width direction includes the vicinity of the center as long as efficient transmission is possible, and may not be the center in a strict sense. When the transmission piece 48 is displaced downward, the rotation base 41 is raised (approaching in the vertical direction) (see a solid line), and when it is displaced upward, the rotation base 41 is laid down (approaching a horizontal state). (See broken line). When the rotating base 41 is raised, the rotating shaft 37 passing through both shaft holes 44a is opposed to the opening 49 formed by the transmission piece 48 in the optical axis direction.

  As shown in FIGS. 4 and 5, the first shade portion 42 is attached to the upper portion of the rotation base portion 41. The second shade portion 43 is attached to the first shade portion 42 in parallel with the first shade portion 42 at a predetermined interval. The first shade portion 42 and the second shade portion 43 have a shape in which two horizontal edges having different heights are joined by inclined edges so that the upper edges thereof form a cut-off line. In the first embodiment, the first shade portion 42 has a flat thin plate shape, and the second shade portion 43 has a predetermined shape between the first shade portion 42 to be attached by appropriately bending a flat thin plate member. An interval is provided. In the first embodiment, the first shade portion 42 and the second shade portion 43 are made of stainless steel to obtain good wear resistance and corrosion resistance, and have a smooth surface and high reflectivity. When the shade 32 is in the rotation posture in which the rotation base 41 is raised, the upper edges (each edge) of the first shade portion 42 and the second shade portion 43 are located at or near the focal positions of the reflector member 13 and the projection lens 15. Are arranged as follows.

  As shown in FIGS. 4 and 5, the shade 32 has a second light-shielding piece 28 formed to protrude toward the light source 11 above the opening 49. In the first embodiment, the second light shielding piece 28 is formed by bending the lower end of the first shade portion 42 attached to the rotation base 41 in the shade 32. The second light-shielding piece 28 has a width dimension that is larger than the width dimension of the opening 49 in the width direction, and when the rotation base 41 is raised, the rotation shaft 37 (the center position) adjacent to the opening 49 in the optical axis direction. It is set as the length dimension extended to the position which covers the upper part (refer FIG. 6). The second light shielding piece 28 is positioned on a path (a second path P2 (see FIG. 6) described later) from the upper part of the reflector member 13 to the projection lens 15 through the rotation shaft 37 and the opening 49.

  As shown in FIG. 1 and the like, the solenoid 33 includes a coil 51, a yoke 52 incorporating the coil 51, and a plunger 53 that moves forward and backward from the coil 51. ) And is configured to be crimped. The plunger 53 is formed with a transmission groove 53 a at the tip, and is advanced and retracted by energization / non-energization of the coil 51.

  As shown in FIG. 7, the link mechanism 34 has a torsion coil spring 54 provided on the rear surface of the bracket plate 31. One end 54a is fitted into the transmission groove 53a of the plunger 53 of the solenoid 33 through the connection opening 36 of the bracket plate 31, and the other end 54b is fitted into the transmission hole 48a of the transmission piece 48 of the shade 32 (see FIG. 6 and the like). ). The torsion coil spring 54 is set to have a spring constant larger than the spring constant of the torsion coil spring 45 that applies a rotational force to the shade 32.

  In the shade unit 14, the guide projections 25 a of the both fixed surface portions 25 of the heat sink member 12 are passed through the guide holes 31 a of the bracket plate 31, and the bracket plate 31 is addressed to the heat sink member 12. Both guide protrusions 25a are passed through corresponding guide holes 16a of the lens holder 16 that supports the projection lens 15. Then, a screw member that passes through each screw hole 16b of the lens holder 16 and each screw hole 31b of the bracket plate 31 is screwed into a screw hole 25b of each fixing surface portion 25 of the heat sink member 12, and the screw of the lens holder 16 is screwed. The screw member that has passed through the use hole 16 c is screwed into each screw hole 26 a of the heat sink member 12. Thereby, the vehicular lamp 10 is assembled in a state where the positional relationship among the projection lens 15, the shade unit 14, the reflector member 13, and the light source 11 is determined.

  As shown in FIG. 1, the cooling fan unit 17 is configured by rotatably providing a cooling fan 56 connected to a motor in a rectangular parallelepiped frame 55, and is attached below the heat radiation fins 23 of the heat sink member 12. . When the light source 11 emits light, the cooling fan unit 17 drives the motor to rotate the cooling fan 56 and cools the radiating fins 23 of the heat sink member 12, thereby preventing problems due to heat generated by the light source 11. .

  Next, the light distribution pattern switching operation in the vehicular lamp 10 will be described. In the vehicular lamp 10, when the coil 51 of the solenoid 33 is not energized, as shown by a solid line in FIG. 6, the shade 32 is generated by the rotational force from the torsion coil spring 45, and both first positioning pieces 46 are connected to the bracket plate 31. It hits. As a result, the shade 32 has a rotational posture in which the first shade portion 42 and the second shade portion 43 block a part of the light reaching the projection lens 15, that is, a low beam position. At this time, the transmission piece 48 of the rotation base 41 is displaced downward, and the plunger 53 of the solenoid 33 is advanced via the link mechanism 34 (see FIG. 7).

  In the vehicular lamp 10, when the coil 51 of the solenoid 33 is energized, the plunger 53 is retracted against the rotational force of the torsion coil spring 45 (see arrow A1 in FIG. 7), and is fixed to the transmission groove 53a at the tip thereof. When the one end 54a is displaced, the torsion coil spring 54 of the link mechanism 34 rotates clockwise (see arrow A2 in FIG. 7). Then, as shown by a chain line in FIG. 6, the shade 32 is laid down by pushing up the transmission piece 48 to which the other end 54 b of the torsion coil spring 54 is fixed, and the second positioning piece 47 hits the bracket plate 31. Then, the shade 32 is in a rotation posture in which the first shade portion 42 and the second shade portion 43 do not block the light reaching the projection lens 15, that is, a high beam position.

  The vehicular lamp 10 reflects light emitted from the light source 11 with power supplied thereto by the reflector member 13 and projects forward by the projection lens 15 (see FIG. 2). Then, the vehicular lamp 10 forms a high beam distribution pattern with projection light projected forward when the shade 32 is set to a high beam position indicated by a chain line in FIG. 6 by the shade unit 14. Further, the vehicular lamp 10 forms a low beam distribution pattern having a cut-off line with projection light projected forward when the shade 32 is set to a low beam position indicated by a solid line in FIG. 6 by the shade unit 14. At this time, since the vehicular lamp 10 forms a cut-off line with the first shade part 42 and the second shade part 43 arranged in parallel at a predetermined interval, generation of color on the cut-off line can be suppressed. The vicinity of the cut-off line can be blurred.

  Here, since the vehicular lamp 10 is provided with the opening 49 at the center of the shade 32 that blocks a part of the light, a part of the light reflected by the reflector member 13 when the low beam light distribution pattern is formed. May be projected forward from the projection lens 15 through the opening 49. Such light illuminates unscheduled positions, such as illuminating a position different from the planned low beam distribution pattern or illuminating a specific position in the low beam distribution pattern with unintended brightness. There is a fear. In particular, the opening 49 is provided to form the transmission piece 48 that transmits the operation of the solenoid 33 to the shade 32, and thus is provided in the center of the shade 32 to stabilize the operation of the shade 32. For this reason, the light traveling through the opening 49 and traveling to the projection lens 15 may dazzle oncoming vehicles and other passers-by.

  And the applicant confirmed two paths (P1, P2 (refer FIG. 2, FIG. 6)) through which such light passes. As shown in FIG. 2, the first path P <b> 1 is emitted from the light source 11, reflected by the reflector member 13, then reflected by the second shade portion 43 (rear surface) of the shade 32, and near the base of the reflector member 13. After being reflected at (a place near the heat sink member 12), the light passes through the opening 49 and proceeds to the projection lens 15. Further, after the second path P2 is reflected by the upper part of the reflector member 13, as shown in FIG. 6, the second path P2 faces between the first shade part 42 and the second shade part 43 of the shade 32, and the first shade part After being reflected by 42 (rear surface), it is reflected by the rotary shaft 37, passes through the opening 49, and proceeds to the projection lens 15. The second path P <b> 2 reaches the front (projection lens 15) side of the upper part of the peripheral surface of the rotation shaft 37, and then passes through the opening 49 toward the projection lens 15. That is, in both the paths (P1, P2), unintended light is reflected by the rear surface of the shade 32 (the first shade portion 42 or the second shade portion 43) that blocks part of the light, so that the unintended light is opened. To the projection lens 15.

  On the other hand, the vehicular lamp 10 of the present invention is provided with light shielding pieces (the first light shielding piece 27 and the second light shielding piece 28) so as to block light traveling forward from the projection lens 15 through the opening 49. Yes. That is, the first light shielding piece 27 is formed by partially projecting the end portion of the heat sink member 12 on the shade 32 side, and is positioned on the first path P1. For this reason, the light passing through the first path P1 is blocked by the first light shielding piece 27 and does not reach the opening 49, and is prevented from being projected forward from the projection lens 15. Further, the second light shielding piece 28 is formed by bending the lower end of the first shade portion 42 in the shade 32 and projecting so as to cover the upper side of the rotation shaft 37, thereby being positioned on the second path P <b> 2. For this reason, the light passing through the second path P2 is blocked by the second light shielding piece 28, is reflected by the rotation shaft 37 and does not reach the opening 49, and is prevented from being projected forward from the projection lens 15. The

  The vehicular lamp 10 of one embodiment of the vehicular lamp according to the present invention can obtain the following functions and effects.

  The vehicular lamp 10 is provided with light-shielding pieces (the first light-shielding piece 27 and the second light-shielding piece 28), so that light that can travel forward from the projection lens 15 through the opening 49 reaches the opening 49. Can be blocked. Thereby, the vehicular lamp 10 can suppress unintended light from being projected forward, and can suppress the oncoming vehicle and other passersby from being dazzled.

  Moreover, since the vehicle lamp 10 partially protrudes the heat sink member 12 which is an installation base portion on which the light source 11 is provided to form the first light shielding piece 27, the first lamp can be obtained only by initial investment for preparing a corresponding mold. A light shielding piece 27 can be provided. For this reason, the vehicular lamp 10 can prevent an increase in cost and can reduce the weight of the shade 32 as compared with, for example, providing the shade 32 with a light shielding piece different from the shade 32 so as to close the opening 49. Can be prevented, and the influence on the operation of the shade 32 can be prevented.

  Further, since the vehicular lamp 10 forms the second light shielding piece 28 by bending the lower end of the first shade portion 42 that constitutes the shade 32, it is possible to change the first shade portion 42 by changing only part of the manufacturing process. Two light shielding pieces 28 can be provided. For this reason, the vehicular lamp 10 can suppress an increase in cost and can reduce the weight of the shade 32 as compared with, for example, providing the shade 32 with a light shielding piece different from the shade 32 so as to close the opening 49. And the influence on the operation of the shade 32 can be minimized.

  Since the vehicular lamp 10 is provided with the first light shielding piece 27 at the end of the heat sink member 12 on the shade 32 side, it is possible to block light that can reach the opening 49 immediately before reaching the opening 49, and The light shielding piece 27 can be positioned in the vicinity of the focal positions of the reflector member 13 and the projection lens 15. For this reason, the vehicular lamp 10 can block light that can reach the opening 49 through the first path P <b> 1 even if the first light shielding piece 27 is small. Further, since the vehicular lamp 10 is formed by extending the first light shielding piece 27 in the width direction, it is possible to block light reflected at various positions in the width direction near the base of the reflector member 13. .

  In the vehicular lamp 10, the lower end of the first shade portion 42 is bent to form the second light shielding piece 28, so that the light that can reach the opening 49 just before reaching the opening 49 can be blocked and the second light shielding piece 28 can be blocked. The light shielding piece 28 can be positioned in the vicinity of the focal positions of the reflector member 13 and the projection lens 15. For this reason, the vehicular lamp 10 can block the light reflected by the rotary shaft 37 so as to reach the opening 49 through the second path P2 even if the second light shielding piece 28 is small. Further, since the vehicular lamp 10 has the second light-shielding piece 28 having a width that is larger than the width of the opening 49, the opening of the light reflected at various positions in the width direction of the rotating shaft 37. The light that can reach 49 can be reliably blocked. Furthermore, since the vehicular lamp 10 has a length dimension that extends the second light-shielding piece 28 to a position covering the rotation shaft 37 (the center position thereof) in the optical axis direction, the projection lens 15 side on the surface of the rotation shaft 37 is provided. Light that can reach the (front side) can be reliably blocked. In addition, since the vehicular lamp 10 has the second light shielding piece 28 formed by bending the lower end of the first shade portion 42, the second light shielding piece 28 as a protrusion can be present on a flat thin plate member. In addition, it is possible to suppress sticking between the first shade portions 42 in the cleaning process at the time of manufacture. In particular, since the vehicular lamp 10 has the second light-shielding piece 28 having a width larger than the width of the opening 49, the second light-shielding piece 28 easily interferes with the adjacent first shade portion 42 and suppresses sticking. The effect can be improved.

  Therefore, in the vehicular lamp 10 of the first embodiment as the vehicular lamp according to the present invention, it is possible to suppress unintended light from being emitted through the opening 49 of the shade 32, and to suppress brightly illuminating an unplanned position. it can.

  Although the vehicular lamp of the present invention has been described based on the first embodiment, the specific configuration is not limited to the first embodiment, and departs from the gist of the invention according to each claim of the claims. Unless otherwise, design changes and additions are permitted.

  In the first embodiment described above, switching between the low beam light distribution pattern and the high beam light distribution pattern is possible. However, as long as a plurality of light distribution patterns can be obtained by the rotation of the shade 32, the above-described embodiment may be used. The configuration is not limited to one.

  In the first embodiment, the opening 49 is formed by providing the transmission piece 48 for transmitting the operation of the drive unit (solenoid 33). However, the opening 49 may be provided at the center of the shade 32. The configuration is not limited to that of the first embodiment described above.

  Further, in Embodiment 1 described above, the shade 32 is formed by three members, but the first shade portion 42 and the second shade portion 43 may be formed by a single thick member. One member may be formed of a single member, and may have other configurations, and is not limited to the configuration of the first embodiment described above.

  In the first embodiment described above, the first light shielding piece 27 is provided on the heat sink member 12, but it is only required to be provided on the installation base portion on which the light source 11 is provided, and is not limited to the configuration of the first embodiment described above. Moreover, although the 1st light shielding piece 27 was extended and formed in the width direction, what is necessary is just to extend in the direction which cross | intersects an optical axis direction on an installation base part (upper surface 12a), and the above-mentioned Example 1 is sufficient. It is not limited to the configuration.

  In the above-described first embodiment, the solenoid 33 is used as the drive unit. However, as long as the operation is transmitted to the transmission piece 48 for the rotation of the shade 32, for example, a motor or the like may be used. The configuration of Example 1 is not limited.

  In the first embodiment described above, the light is controlled by the reflector member 13 and the projection lens 15 to form a predetermined light distribution pattern. However, it may be controlled only by the reflector member or only by the projection lens. However, other configurations may be used, and the configuration is not limited to the configuration of the first embodiment described above.

DESCRIPTION OF SYMBOLS 10 Vehicle lamp 11 Light source 12 Heat sink member 13 Reflector member 15 Projection lens 27 First light shielding piece 28 (as an example of light shielding piece) Second light shielding piece 32 Shade 33 (as an example of light shielding piece) ) Solenoid 37 Rotating shaft 48 Transmission piece 49 Opening

Claims (7)

A projection lens that projects the light emitted from the light source toward the front;
A reflector member that reflects light emitted from the light source to the projection lens;
Shading part of the light emitted from the light source to form a cut-off line of the light distribution pattern, a shade provided rotatably,
And a light shielding piece for blocking light that travels forward from the projection lens through the opening that is reflected by the reflector member and provided in the center of the shade before reaching the opening. Light fixture.   2. The vehicular lamp according to claim 1, wherein the opening is formed to be cut out so as to provide a transmission piece through which the operation of the driving unit is transmitted for rotation of the shade. 3.   The light-shielding piece protrudes from an end portion on the shade side of the installation base portion where the light source is provided, and is formed to extend in a direction intersecting the optical axis of the projection lens on the installation base portion. The vehicular lamp according to claim 1 or 2.   The vehicular lamp according to claim 3, wherein the installation base is a heat sink member that dissipates heat from the light source.   3. The vehicle according to claim 1, wherein the light-shielding piece is formed by bending the shade, and has a width that is greater than the width of the opening above the opening. Light fixture. The opening is adjacent to the light source side so as to rotatably support the shade,
The vehicular lamp according to claim 5, wherein the light shielding piece has a length dimension covering an upper portion of the rotation axis when viewed in an optical axis direction of the projection lens.   The light shielding piece is a first light shielding piece that protrudes from an end on the shade side of the installation base portion where the light source is provided and extends on the installation base portion in a direction perpendicular to the optical axis of the projection lens. And a second light-shielding piece that is formed by bending the shade and has a width that is greater than the width of the opening above the opening. The vehicle lamp as described in 2.