JP2012059551A - Vehicular headlight - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular headlight realizing downsizing of a beam switching structure including a fixed shade and a movable shade.SOLUTION: A lamp unit 7 is housed inside a lamp outer case 4 composed of a lamp housing 2 and a cover 3 covering the opening of the lamp housing, and the lamp unit includes a reflector 10 having a reflection surface 10a on which a light source 11 is fitted and which reflects light emitted from the light source, a projection lens 9 projecting light emitted from the light source, a fixed shade 14 having a shielding part 17 which is placed backward than the projection lens and shields a part of the light emitted from the light source, a movable shade 19 which is supported by the fixed shade in a free movement and is moved to a prescribed position and shields a part of the light emitted from the light source, a driving mechanism 23 to move the movable shade, and a transmission mechanism 26 to transmit driving force of the driving mechanism to the movable shade. A shielding part of the fixed shade is arranged in a state of its being inclined back and forth against a perpendicular direction.

Description

  The present invention relates to a vehicle headlamp. More specifically, the present invention relates to a technical field in which a shielding portion of a fixed shade that shields a part of light emitted from a light source is arranged in a state inclined in the front-rear direction with respect to a vertical direction, and is downsized.

  Some vehicle headlamps include, for example, a lamp unit having a light source disposed inside a lamp outer casing constituted by a cover and a lamp housing.

  The lamp unit of the vehicle headlamp has a fixed shade and a movable shade, and the irradiation mode of light emitted from the light source can be switched by moving (rotating) the movable shade with respect to the fixed shade. Some are made possible (see, for example, Patent Document 1).

  In the vehicle headlamp described in Patent Document 1, for example, a so-called low beam irradiation mode in which a movable shade is irradiated to a short distance by being moved to a shielding position that shields light emitted from the light source. When the movable shade is moved to a non-shielding position that does not shield the light emitted from the light source, the so-called high beam irradiation mode for irradiating a long distance is switched.

JP 2009-230958 A

  By the way, it is desirable to reduce the size of a vehicle headlamp having a lamp unit. Particularly, in recent years, the demand for further downsizing has increased as the optical system provided in the vehicle headlamp becomes shorter. .

  However, in the vehicle headlamp described in Patent Document 1, a drive mechanism for moving the movable shade with respect to the fixed shade is disposed below the fixed shade. With regard to the included beam switching structure, the height in the vertical direction is particularly high, which hinders miniaturization.

  Therefore, an object of the vehicle headlamp of the present invention is to overcome the above-described problems and to reduce the size.

  In order to solve the above-described problem, a vehicle headlamp has a lamp unit disposed inside a lamp outer casing formed by a lamp housing having an opening on at least one side and a cover covering the opening of the lamp housing. The lamp unit is provided with a light source and a reflector having a reflecting surface for reflecting the light emitted from the light source, a projection lens for projecting the light emitted from the light source, and the rear of the projection lens. A fixed shade having a shielding portion for shielding a part of the light emitted from the light source, and a movable shade for supporting a part of the light emitted from the light source that is movably supported by the fixed shade and moved to a predetermined position. A shade, a drive mechanism that moves the movable shade, and a transmission mechanism that transmits the driving force of the drive mechanism to the movable shade. Shielding portion of the fixed shade is one that was placed in an inclined front-rear direction with respect to the vertical direction.

  Therefore, in the vehicle headlamp, the relative height of the drive mechanism is low with respect to the shield portion of the fixed shade.

  The vehicle headlamp according to the present invention is a vehicle headlamp in which a lamp unit is arranged inside a lamp outer casing formed by a lamp housing having an opening in at least one side and a cover covering the opening of the lamp housing. The lamp unit includes a reflector having a reflecting surface to which a light source is attached and reflecting the light emitted from the light source, a projection lens that projects the light emitted from the light source, and a position behind the projection lens. A fixed shade having a shielding portion for shielding a part of the light emitted from the light source, and movably supported by the fixed shade and moved to a predetermined position to shield a part of the light emitted from the light source. A movable shade that moves, a drive mechanism that moves the movable shade, and a transmission mechanism that transmits the driving force of the drive mechanism to the movable shade, Wherein the shielding portion of the constant shade is arranged in a state inclined to the longitudinal direction with respect to the vertical direction.

  Therefore, since the shielding part of the fixed shade is arranged in a state of being inclined in the front-rear direction with respect to the vertical direction, the beam switching structure including the fixed shade and the movable shade can be downsized.

  In the invention described in claim 2, the movable shade is rotatably supported by the fixed shade in a state where the movable shade is inclined at the same angle as the fixed shade.

  Therefore, the rotational position of the movable shade does not hinder the miniaturization of the vehicle headlamp, and the vehicle headlamp can be miniaturized regardless of the rotational operation of the movable shade.

  In the invention described in claim 3, the movable shade is rotatable between a shielding position where the light emitted from the light source is shielded and a non-shielding position where the light emitted from the light source is not shielded. A bearing portion serving as a rotation fulcrum of the movable shade and a stopper portion that holds the movable shade at the shielding position are provided at opposite ends of the fixed shade across the optical axis.

  Accordingly, it is difficult for the movable shade to be bent, and it is possible to ensure good positional accuracy at the shielding position of the movable shade.

  In the invention described in claim 4, at least the shielding portion of the fixed shade is formed in a plate shape, and an intermediate portion protruding forward from a lower edge of the shielding portion on the fixed shade and the intermediate portion A mounting portion protruding obliquely downward from the front edge is provided, the drive mechanism is attached to the mounting portion, and a solenoid having an output shaft that moves along the shielding portion is used as the drive mechanism.

  Therefore, it is possible to easily secure the movement space of the output shaft, and accordingly, the vehicle headlamp can be reduced in size.

  In the invention described in claim 5, the movable shade is rotatable between a shielding position where the light emitted from the light source is shielded and a non-shielding position where the light emitted from the light source is not shielded. A solenoid having an output shaft moved along the shielding portion as the drive mechanism, and a link member having both ends connected to the movable shade and the output shaft as the transmission mechanism, Each connection point between the movable shade and the link member with respect to the output shaft is provided on the opposite side across the optical axis.

  Therefore, there is no need to provide an orthogonal transformation mechanism between the movable shade and the output shaft, and the mechanism can be simplified and miniaturized accordingly.

  In the invention described in claim 6, a connecting portion to which one end portion of the link member is connected to the movable shade is provided, and the connecting portion is provided in the vicinity of a rotation fulcrum of the movable shade with respect to the fixed shade. ing.

  Accordingly, it is possible to reduce the amount of movement of the connecting portion and the amount of movement of the link member connected to the connecting portion when the movable shade is rotated, and the space for moving the connecting portion and the link member is reduced. The size of the lamp can be reduced.

  In the invention described in claim 7, the link member is positioned between the movable shade and the drive mechanism, and the movable shade slides on the link member when the movable shade is rotated. A holding protrusion is provided that holds the predetermined turning trajectory of the movable shade.

  Accordingly, the movable shade can be slid on the holding projection when rotating, and a predetermined rotation locus of the movable shade is held by the holding projection, so that a smooth and proper operation of the movable shade can be ensured.

  According to an eighth aspect of the present invention, the movable shade is formed of a resin material, and a flat light-shielding portion that shields light emitted from the light source on the movable shade, and a cover projecting from the light-shielding portion. The support shaft portion is integrally formed, the shielding portion of the fixed shade is formed of a metal material, and the fixed shade is formed of a resin material that supports the supported shaft portion of the movable shade in succession to the shielding portion. And a retaining portion that is elastically deformable and prevents the supported shaft portion from falling off from the bearing portion is provided on the supported shaft portion of the movable shade.

  Accordingly, the movable shade is supported by the fixed shade simply by inserting the supported shaft portion into the bearing portion, and the movable shade can be easily coupled to the fixed shade. Dropout can be prevented.

  The best mode for carrying out the vehicle headlamp of the present invention will be described below with reference to the accompanying drawings.

  The vehicle headlamps 1 are respectively attached to the left and right end portions of the front end portion of the vehicle body.

  As shown in FIG. 1, the vehicle headlamp 1 includes a lamp housing 2 having a recess opened forward and a cover 3 that closes the opening of the lamp housing 2. The lamp housing 2 and the cover 3 constitute a lamp outer casing 4, and the inner space of the lamp outer casing 4 is formed as a lamp chamber 5.

  A mounting hole 2 a penetrating in the front-rear direction is formed at the rear end of the lamp housing 2. A back cover 6 is attached to the attachment hole 2a.

  A lamp unit 7 is disposed in the lamp chamber 5 (see FIGS. 1 to 3). The lamp unit 7 includes a lens holder 8, a projection lens 9 attached to the front end portion of the lens holder 8, a reflector 10 positioned behind the lens holder 8, and a light source 11 attached to the rear end portion of the reflector 10. is doing. As the light source 11, for example, a discharge lamp is used.

  The lens holder 8 is formed in a substantially cylindrical shape penetrating in the front-rear direction, and has supported protrusions 8a and 8a that protrude outwardly on the left and right sides. At the upper and lower ends of the lens holder 8, notches 8b and 8b that are opened to the rear are formed.

  The inner surface of the reflector 10 is formed as a reflecting surface 10a. At the upper and lower ends of the reflector 10, cutout portions 10 b and 10 b opened forward are formed. The front end portion of the reflector 10 is provided as a fastening portion 12 protruding outward. The reflector 10 is provided with a connecting projection 13 protruding forward from the fastening portion 12 at the lower end, and the connecting projection 13 is formed in an annular shape penetrating vertically.

  The lens holder 8 is attached to the fastening portion 12 of the reflector 10 by, for example, screwing or the like.

  A fixed shade 14 is attached to the inner surface (upper surface) of the lower end portion of the reflector 10 (see FIGS. 1 and 2). The fixed shade 14 is formed of a plate-like material, and protrudes diagonally upward and forward from the rear edge of the intermediate portion 15, the intermediate portion 15 facing upward and downward, the mounting portion 16 protruding forward and obliquely downward from the front edge of the intermediate portion 15, and the intermediate portion 15. And the shield part 17 made. The intermediate portion 15, the mounting portion 16, and the shielding portion 17 are integrally formed of a metal material.

  Thus, by forming the intermediate portion 15, the attachment portion 16, and the shielding portion 17 with a metal material, it is possible to ensure good heat dissipation when light is emitted from the light source 11, and to increase the temperature of the lamp chamber 5. Can be suppressed. Further, the strength of the fixed shade 14 can be improved by forming the intermediate portion 15, the attachment portion 16, and the shielding portion 17 with a metal material.

  The shielding part 17 is formed with a transmission notch 17a opened upward. The transmission notch 17a is formed in a portion excluding the left and right end portions of the shielding portion 17, and the opening edge is formed in a substantially arc shape protruding downward. A stopper portion 17 b that protrudes forward is provided at the right end of the shielding portion 17.

  A bearing 18 made of a resin material is provided at the left end of the shield 17. The bearing portion 18 functions as a rotation fulcrum of a movable shade described later.

  As shown in FIG. 4, the bearing portion 18 and the stopper portion 17 b of the fixed shade 14 are positioned at both left and right end portions on the opposite side across the optical axis P of the light source 11.

  A movable shade 19 is rotatably supported on the front surface of the fixed shade 14. The movable shade 19 is formed of a resin material, and as shown in FIGS. 1 and 2, the light-shielding portion 20 extending substantially in the left-right direction, the connecting portion 21 projecting forward from the lower end portion at the left end of the light-shielding portion 20, and the light-shielding portion A supported shaft portion 22 protruding rearward from the left end portion of 20 is integrally formed.

  As described above, by integrally forming the light shielding portion 20, the connecting portion 21, and the supported shaft portion 22 of the movable shade 19 with a resin material, it is possible to reduce the number of parts and improve the moldability of the movable shade 19. . Further, since the movable shade 19 is formed of a resin material, the weight can be reduced, and the operation speed when the movable shade 19 is rotated with respect to the fixed shade 14 can be improved.

  The connecting portion 21 is positioned in the vicinity of the supported shaft portion 22, that is, the lower portion of the rotation fulcrum for the fixed shade 14.

  The supported shaft portion 22 is provided with a plurality of retaining portions 22a, 22a,..., And slits opened rearward are formed between the retaining portions 22a, 22a,. . Therefore, the retaining portions 22a, 22a,... Can be elastically deformed in a direction approaching the axial center of the supported shaft portion 22. Each of the retaining portions 22a, 22a,... Is provided with an engaging claw that is inclined so as to be displaced outward as it goes forward, and an engagement surface facing forward is formed at the front end of the engaging claw. .

  The movable shade 19 has a supported shaft portion 22 inserted into the bearing portion 18 and is rotatably supported by the fixed shade 14. When the supported shaft portion 22 is inserted into the bearing portion 18, the retaining portions 22a, 22a,... Are elastically deformed in a direction approaching the axial center of the supported shaft portion 22, and the supported shaft portion 22 is further , The retaining portions 22a, 22a,... Are elastically restored by being inserted into the portion 18, and each engagement surface is engaged with the rear opening edge of the bearing portion 18 so that the movable shade 19 is fixed to the fixed shade 14. Dropping is prevented.

  Since the movable shade 19 is provided with elastically deformable retaining portions 22a, 22a,... On the supported shaft portion 22 inserted into the bearing portion 18, the supported shaft portion is provided on the bearing portion 18. The movable shade 19 is supported on the fixed shade 14 simply by inserting the movable shade 19, so that the movable shade 19 can be easily coupled to the fixed shade 14 and the retaining portions 22a, 22a,. Dropping from the fixed shade 14 can be prevented.

  The movable shade 19 is rotated with respect to the fixed shade 14 between the shielding position (see FIG. 5) and the non-shielding position (see FIG. 6) with the bearing portion 18 as a fulcrum. The movable shade 19 is rotatably supported by the fixed shade 14 along the inclined state of the shielding portion 17, and is inclined forward with respect to the vertical direction.

  The shielding position is a position where the transmission notch 17 a of the fixed shade 14 is closed. When the movable shade 19 is rotated to the shielding position, a part of the light emitted from the light source 11 is shielded by the fixed shade 14 and the movable shade 19. Then, it is switched to a so-called low beam irradiation mode for irradiating a short distance. The non-shielding position is a position where the transmission notch 17a of the fixed shade 14 is opened. When the movable shade 19 is rotated to the non-shielding position, a part of the light emitted from the light source 11 is only by the fixed shade 14. It is shielded and switched to a so-called high beam irradiation mode for irradiating a long distance.

  The right end portion of the movable shade 19 is engaged with the stopper portion 17b of the fixed shade 14 and is held at the shielding position (see FIG. 5). The movable shade 19 is held at the non-shielding position with the lower edge contacting the intermediate portion 15 of the fixed shade 14 (see FIG. 6).

  As described above, since the bearing portion 18 and the stopper portion 17b of the fixed shade 14 are respectively positioned at both left and right ends on the opposite side across the optical axis P of the light source 11, the movable shade 19 is unlikely to bend. Good positional accuracy at the shielding position of the movable shade 19 can be ensured.

  A drive mechanism 23 is attached to the attachment portion 16 of the fixed shade 14 (see FIGS. 1, 2 and 4). For example, a solenoid is used as the drive mechanism 23, and the drive mechanism 23 includes a main body 24 and an output shaft 25 that moves in the left-right direction with respect to the main body 24.

  A drive unit (not shown) having a coil and a magnet (not shown) is provided inside the main body 24. A biasing spring (not shown) that applies a moving force to the output shaft 25 in the right direction, that is, in a direction protruding from the main body 24 is disposed on the main body 24. The output shaft 25 protrudes rightward from the main body 24 at the right end.

  When the drive mechanism 23 is energized, the output shaft 25 is attracted to the drive unit, and a leftward movement force is applied and held at the leftward movement end. Conversely, when the drive mechanism 23 is de-energized, the output shaft 25 is held at the right moving end by the biasing force of the biasing spring.

  It should be noted that the configuration in which the output shaft 25 is drawn into and held in the main body 24 when energized is compared to the configuration in which the output shaft 25 is protruded and held from the main body 24 during energization. The holding force of the drive unit with respect to the output shaft 25 can be increased, and the drive mechanism 23 can be downsized accordingly.

  Since the drive mechanism 23 is attached to the attachment portion 16 of the fixed shade 14, the drive mechanism 23 is positioned in front of the shielding portion 17 in a state inclined to the front side (see FIG. 1). As the arrangement position of the drive mechanism 23, the movable shade 19 is properly rotated, and the beam switching structure including the fixed shade 14 and the movable shade 19 is downsized. In particular, the height in the vertical direction is low. Such a position is desirable, for example, desirably within a range S (see FIG. 1) of a certain angle with the upper end of the shielding portion 17 as a fulcrum.

  As described above, in the vehicle headlamp 1, the output shaft 25 that moves in the left-right direction along the shielding portion 17 of the fixed shade 14 using the solenoid as the drive mechanism 23 is provided. Therefore, the vehicle headlamp 1 can be miniaturized accordingly.

  The driving force of the driving mechanism 23 is transmitted to the movable shade 19 by the link member 26 that functions as a transmission mechanism (see FIGS. 1, 2, and 4). The link member 26 is formed by bending a wire-like metal material into a predetermined shape, and an extending portion 27 extending in the left-right direction, a first coupling portion 28 bent from one end of the extending portion 27, and the extending portion 27. And a second coupling portion 29 bent from the other end.

  An intermediate portion of the extended portion 27 is provided as a holding projection 27a bent rearwardly in a U-shape. The first coupling portion 28 is formed in an L shape. The second coupling portion 29 has a tip formed in an arc shape.

  In the link member 26, the first coupling portion 28 is coupled to the coupling portion 21 and coupled to the movable shade 19, and the distal end portion of the second coupling portion 29 is coupled to the right end portion of the output shaft 25. Connected. The connecting portion 21 that is the connecting point of the first connecting portion 28 and the right end portion of the output shaft 25 that is the connecting point of the second connecting portion 29 are located on the opposite left and right sides of the optical axis P of the light source 11. (See FIG. 4).

  In a state where the movable shade 19 and the drive mechanism 23 are connected by the link member 26, the extending portion 27 of the link member 26 is positioned in the space between the movable shade 19 and the drive mechanism 23 (see FIGS. 1 and 4). ).

  As described above, since the extending portion 27 is positioned in the space between the movable shade 19 and the drive mechanism 23, the movable shade 19 can be slid on the holding projection 27a when rotating, and the holding projection 27a. Thus, the predetermined rotation trajectory of the movable shade 19 is maintained, and the smooth and proper operation of the movable shade 19 can be ensured. Further, since the extending portion 27 is formed in a shape extending in the left-right direction, a special holding member is not required on the fixed shade 14 side by providing the holding protrusion 27a.

  Further, since the connecting point between the movable shade 19 and the link member 26 with respect to the output shaft 25 is provided on the opposite side of the optical axis P of the light source 11, an orthogonal conversion mechanism is provided between the movable shade 19 and the output shaft 25. There is no need, and the mechanism can be simplified and miniaturized accordingly.

  Further, since the connecting portion 21 of the movable shade 19 is provided in the vicinity of the rotation fulcrum of the movable shade 19 with respect to the fixed shade 14, the moving amount of the connecting portion 21 when the movable shade 19 is rotated and the connecting portion 21 are connected. The amount of movement of the linked member 26 can be reduced. Therefore, the movement space of the connection part 21 and the link member 26 becomes small, and size reduction of the vehicle headlamp 1 can be achieved.

  A frame (not shown) in which the lamp unit 7 is supported is disposed in the lamp chamber 5, and the frame is tiltably supported by the lamp housing 2 via an aiming adjustment mechanism (not shown). Accordingly, the lamp unit 7 is tilted in the vertical direction or the horizontal direction integrally with the frame by the operation of the aiming adjustment mechanism, and the optical axis adjustment (initial adjustment) of the light source 11 is performed.

  The lamp unit 7 is supported by the frame so as to be tiltable in the vertical direction with the supported protrusions 8a and 8a of the lens holder 8 as fulcrums, for example. When the lamp unit 7 is supported by the frame so as to be tiltable in the vertical direction, a leveling adjustment mechanism (not shown) is connected to the lamp unit 7, and the lamp unit 7 is supported by the supported protrusions 8a and 8a by the operation of the leveling adjustment mechanism. And the direction of the optical axis of the light source 11 is adjusted according to the weight of the vehicle-mounted object.

  The lamp unit 7 may be supported by the frame so as to be rotatable in the horizontal direction, for example. When the lamp unit 7 is supported by the frame so as to be rotatable in the horizontal direction, a swivel mechanism (not shown) is connected to the lamp unit 7, and the lamp unit 7 is rotated in the horizontal direction by the operation of the swivel mechanism. The direction of the optical axis is changed following the traveling direction.

  As described above, when the leveling adjustment mechanism and the swivel mechanism are arranged, the actuator for performing the leveling adjustment and the swivel operation is arranged at the lower end portion of the lamp unit 7. The actuator is connected to a connecting projection 13 provided on the reflector 10 via a connecting shaft (not shown).

  As described above, in the vehicle headlamp 1, the shielding portion 17 of the fixed shade 14 is disposed in a state of being inclined in the front-rear direction with respect to the vertical direction. The beam switching structure including can be downsized. In particular, since the height of the shielding portion 17 is reduced, it is possible to reduce the size in the vertical direction.

  In addition, since the movable shade 19 is rotatably supported by the fixed shade 14 while being inclined at the same angle as the fixed shade 14, the rotational position of the movable shade 19 hinders the miniaturization of the vehicle headlamp 1. Therefore, the vehicle headlamp 1 can be reduced in size regardless of the rotational movement of the movable shade 19.

  In the above example, the shielding portion 17 of the fixed shade 14 is inclined forward with respect to the vertical direction. However, the inclination direction of the shielding portion 17 is not limited to the forward direction, and is rearward with respect to the vertical direction. May be inclined. When the shielding part 17 is inclined rearward with respect to the vertical direction, for example, the movable shade 19 can be supported on the rear surface side of the shielding part 17 and the drive mechanism 23 can be arranged on the rear side of the shielding part 17. Is possible.

  The shapes and structures of the respective parts shown in the best mode for carrying out the invention described above are merely examples of the embodiments performed in practicing the present invention. The range should not be interpreted in a limited way.

2 to 6 show an embodiment of a vehicle headlamp of the present invention, and this figure is a longitudinal sectional view. It is a disassembled perspective view of a lamp unit. It is a perspective view of a lamp unit. It is an expansion perspective view which shows the arrangement | positioning state with respect to the fixed shade of a drive mechanism. It is a perspective view which shows the state by which the movable shade is hold | maintained at the shielding position. It is a perspective view which shows the state by which the movable shade is hold | maintained at the non-shielding position.

  DESCRIPTION OF SYMBOLS 1 ... Vehicle headlamp, 2 ... Lamp housing, 3 ... Cover, 4 ... Lamp housing, 7 ... Lamp unit, 9 ... Projection lens, 10 ... Reflector, 10a ... Reflecting surface, 11 ... Light source, 14 ... Fixed shade 15 ... intermediate portion, 16 ... mounting portion, 17 ... shielding portion, 17b ... stopper portion, 18 ... bearing portion (rotating fulcrum), 19 ... movable shade, 20 ... light-shielding portion, 21 ... connecting portion, 22 ... supported Shaft portion, 22a ... retaining portion, 23 ... drive mechanism (solenoid), 25 ... output shaft, 26 ... link member (transmission mechanism), 27a ... holding projection

Claims (8)

A vehicle headlamp in which a lamp unit is arranged inside a lamp outer casing formed by a lamp housing having an opening in at least one and a cover that covers the opening of the lamp housing,
The lamp unit is
A reflector having a reflecting surface to which a light source is attached and which reflects light emitted from the light source;
A projection lens for projecting light emitted from the light source;
A fixed shade having a shielding part that is located behind the projection lens and shields a part of the light emitted from the light source;
A movable shade that is movably supported by the fixed shade and is moved to a predetermined position to block a part of the light emitted from the light source;
A drive mechanism for moving the movable shade;
A transmission mechanism that transmits the driving force of the driving mechanism to the movable shade,
The vehicular headlamp, wherein the shielding portion of the fixed shade is disposed in a state of being inclined in the front-rear direction with respect to the vertical direction. The vehicle headlamp according to claim 1, wherein the movable shade is rotatably supported by the fixed shade in a state where the movable shade is inclined at the same angle as the fixed shade. The movable shade is rotatable between a shielding position where the light emitted from the light source is shielded and a non-shielding position where the light emitted from the light source is not shielded,
The bearing part which becomes a rotation fulcrum of the movable shade, and the stopper part which holds the movable shade at the shielding position are provided at opposite ends of the fixed shade across the optical axis. 2. A vehicle headlamp according to 2. At least the shielding part of the fixed shade is formed in a plate shape,
The fixed shade is provided with an intermediate portion protruding forward from the lower edge of the shielding portion and an attachment portion protruding obliquely downward from the front edge of the intermediate portion,
Attach the drive mechanism to the attachment part,
The vehicle headlamp according to claim 1, 2, or 3, wherein a solenoid having an output shaft moved along the shielding portion is used as the driving mechanism. The movable shade is rotatable between a shielding position where the light emitted from the light source is shielded and a non-shielding position where the light emitted from the light source is not shielded,
Using a solenoid having an output shaft moved along the shield as the drive mechanism,
As the transmission mechanism, using link members whose both ends are connected to the movable shade and the output shaft,
The vehicle headlamp according to claim 1 or 2, wherein each connection point between the movable shade and the link member with respect to the output shaft is provided on the opposite side of the optical axis of the light source. . Providing a connecting portion to which one end of the link member is connected to the movable shade;
The vehicle headlamp according to claim 5, wherein the connecting portion is provided in the vicinity of a rotation fulcrum of the movable shade with respect to the fixed shade. Positioning the link member between the movable shade and the drive mechanism;
6. The link member is provided with a holding projection that is slidable when the movable shade is rotated and holds a predetermined rotation locus of the movable shade. Alternatively, the vehicle headlamp according to claim 6. The movable shade is formed of a resin material;
A flat light-shielding part that shields light emitted from the light source and a supported shaft part protruding from the light-shielding part are integrally formed on the movable shade,
Forming the shielding part of the fixed shade with a metal material;
The fixed shade is provided with a bearing portion formed of a resin material that is continuous with the shielding portion and supports a supported shaft portion of the movable shade,
The supported shaft portion of the movable shade is provided with a retaining portion that is elastically deformable and prevents the supported shaft portion from falling off from the bearing portion. The vehicle headlamp according to claim 3, claim 4, claim 5, claim 6 or claim 7.

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