JPH0637154B2 - Vehicle headlight device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The vehicle headlight device of the present invention will be described in accordance with the following items.

A. Industrial application fields B. SUMMARY OF THE INVENTION C. Prior Art [Fig. 5] D. Problems to be Solved by the Invention [FIG. 5] E. Means for Solving the Problems F. Example [FIGS. 1 to 4] a. Headlight unit [Figs. 1 to 3] b. Tilt fulcrum axis, aiming adjustment mechanism [Figs. 1 to 4
Figure] b-1. Tilt fulcrum axis [Figs. 1 and 2] b-2. Aiming adjustment mechanism [FIGS. 1 to 4] b-3. Mounting the headlight unit on the vehicle body c. Leveling adjustment mechanism [FIGS. 1 to 4] d. Connection between adjusting rod and output rod [Figs. 1, 3, 4] e. Aiming adjustment, leveling adjustment e-1. Aiming adjustment e-2. Leveling adjustment G. EFFECT OF THE INVENTION (A. Field of Industrial Application) The present invention relates to a novel vehicle headlight device. For more information,
A headlight device for a vehicle provided with a tilting member that is tilted when changing the irradiation direction, an aiming adjustment mechanism for performing aiming adjustment, and a leveling adjustment mechanism for performing leveling adjustment, and particularly, adjustment for leveling adjustment A point is common with an adjustment point for vertical aiming adjustment, and relates to a vehicle headlight device in which a vertical aiming adjustment mechanism and a leveling adjustment mechanism are arranged separately in the front-rear direction,
By devising the connection between the adjusting rod driven by the vertical aiming adjustment mechanism and the leveling adjustment mechanism and the output shaft of the leveling adjustment mechanism, the positional relationship between the vertical aiming adjustment mechanism and the leveling adjustment mechanism is slightly misaligned and assembled. Another object of the present invention is to provide a novel vehicle headlight device capable of smoothly moving the adjusting rod.

(B. Overview of the Invention) A vehicle headlight device of the present invention includes a tilting member that is tilted when changing the irradiation direction, an aiming adjustment mechanism for performing aiming adjustment, and a leveling adjustment mechanism for performing leveling adjustment. A headlight device for a vehicle, comprising: a vertical aiming adjustment mechanism for performing an aiming adjustment in the vertical direction and a leveling adjustment mechanism, which are separated from each other in the front-rear direction, and driven by the vertical aiming adjustment mechanism and the leveling adjustment mechanism. By connecting the adjusting rod and the output shaft of the leveling adjusting mechanism with a universal joint, even if the positional relationship between the vertical aiming adjusting mechanism and the leveling adjusting mechanism is slightly misaligned, the adjusting rod is adjusted. It is designed to be able to move smoothly.

(C. Prior Art) [FIG. 5] A vehicle headlamp, for example, a vehicle headlamp is configured so that the irradiation direction thereof can be adjusted, and a member that defines the irradiation direction, for example, a headlight. A tilting device for tiltably supporting the lamp unit, the reflecting mirror, and the like on a support member and tilting the tilting member is provided. Here, the headlamp unit is a unit in which a reflector portion and a light source are arranged in a lamp space defined by a lamp body and a lens covering a front opening of the lamp body.

The adjustment of the irradiation direction is a so-called initial aiming adjustment, that is, an adjustment performed after the headlight is mounted on the vehicle body before use or at the time of inspection, and leveling adjustment, that is, by a person or a load. There is an adjustment for correcting the deviation in the irradiation direction in the vertical direction caused by the change in the load applied to the respective cases, of which the former initial aiming adjustment is usually performed by an adjusting mechanism by manual operation, and the latter. The leveling adjustment is performed by a drive mechanism driven by remote control.

Further, the drive mechanism for leveling adjustment is often provided at one of the aiming adjustment points, that is, the adjustment point common to the adjustment point for performing the initial aiming adjustment in the vertical irradiation direction. In a headlight device having common points, an adjustment rod for aiming adjustment in the up-down direction also serves as an adjustment rod for leveling adjustment.

By the way, when the aiming adjustment mechanism for vertical aiming adjustment and the leveling adjustment mechanism have such a relationship, it is desirable that these two mechanisms are integrated or arranged as close as possible, but they are arranged in the periphery. Due to the relationship with other members and mechanisms, it may be necessary to place them at a considerable distance in the front-rear direction.

FIG. 5 shows an example a of a conventional vehicle headlight device when such an arrangement is forced.

In the figure, b is a headlamp unit, c and d are both parts of the vehicle body, and these partial vehicle bodies c and d are located apart from each other in the front-rear direction. Reference numeral e denotes a unit support plate that is fixed to the front partial vehicle body c and that is positioned so as to face the headlamp unit b from the rear side. A front end portion is rotatably connected to a lower portion of the back surface of the headlight unit b near one end, and a tilting fulcrum portion of the headlight unit b is formed here.

Reference numeral g denotes a vertical aiming adjustment mechanism attached to the rear surface of the upper end of the unit support plate e, and includes a casing h, a relatively long adjustment rod i extending in the front-rear direction and penetrating the casing h, and an operation shaft j. , A nut 1 or the like that is rotated by rotating the operation shaft j and the screw shaft portion k of the adjusting rod i is screwed, and the front end portion of the adjusting rod i is located on the back surface of the headlight unit b. It is rotatably connected to the upper part near one end. An adjusting rod of a left and right aiming adjusting mechanism (not shown) fixed to the unit supporting plate e is connected to a lower portion of the back surface of the headlight unit b near the other end thereof, so that the headlight unit b tilts. It is supported by a unit support plate e via a fulcrum shaft f, a vertical aiming adjusting mechanism g, and a left and right aiming adjusting mechanism (not shown) so as to be tiltable in the vertical and horizontal directions.

Reference numeral m denotes a leveling adjustment mechanism, which is a casing n fixed at a position substantially right behind the vertical aiming adjustment mechanism g in the rear partial vehicle body d, a motor o provided in the casing n, and rotated by the motor o. Drive rod p and the like, and the rear end portion of the adjusting rod i is inserted into the rod insertion hole q of the drive rod p.
And are integrally connected so as to rotate together and to be slidable relative to each other in the axial direction.

Then, when the operating shaft j is rotated, the adjusting rod i is sent in the axial direction in a non-rotating state, whereby the headlamp unit b is tilted substantially up and down to perform the aiming adjustment in the up and down direction. When the driving body p rotates, the adjusting rod i is screwed or unscrewed with respect to the nut 1 to move in the axial direction, whereby the headlamp unit b is tilted substantially up and down to perform leveling adjustment.

(D. Problem to be Solved by the Invention) [FIG. 5] However, in such a headlight device a, the vertical aiming adjusting mechanism g and the leveling adjusting mechanism m are separate bodies, and Since they are separately attached to the two partial vehicle bodies c and d, an axial deviation easily occurs between the screw hole r of the nut 1 and the insertion hole q of the driving body p. If such an axial deviation occurs,
The axis of the adjusting rod i is the axis of the insertion hole q of the driving body p and the nut l.
Since it is inclined with respect to the axis of the screw hole r, the adjusting rod i is partially crimped to the inner peripheral surface of the insertion hole q or the screw hole r,
As a result, the movement or rotation of the adjustment rod i in the axial direction becomes heavy, and in extreme cases, such movement or rotation becomes completely impossible.

Further, for that reason, there is a problem that the dimensions of the respective parts of the vertical aiming adjusting mechanism g and the leveling adjusting mechanism n and the mounting accuracy thereof must be increased.

Even if the above-mentioned axial deviation does not occur when the aiming adjusting mechanism g and the leveling adjusting mechanism m are initially attached to the vehicle body, it may occur later due to vibrations received by the vehicle body.

(E. Means for Solving the Problem) In order to solve the above problems, the vehicle headlight device of the present invention separates the adjusting rod of the vertical aiming adjusting mechanism from the output rod of the leveling adjusting mechanism. In addition to being formed, the adjusting rod and the output rod are connected by a universal joint.

Therefore, according to the vehicle headlamp device of the present invention, the output portion of the vertical aiming adjustment mechanism, that is, the drive member connected to the adjustment rod and the output portion of the leveling adjustment mechanism, that is, the drive member connected to the output rod, are provided. Even if there is axial misalignment between them, the axial misalignment is absorbed by the universal joint between the adjusting rod and the output rod, so that the adjusting rod and output rod do not come into close contact with the drive member to which they are connected. It is possible to prevent it almost certainly, so that the adjustment rod and the output rod can always be smoothly moved, and the mounting accuracy of the vertical aiming adjustment mechanism and the leveling adjustment mechanism to the vehicle body can be relaxed to some extent. The adjustment rod for adjustment and the leveling adjustment mechanism can be connected after the leveling adjustment mechanism is attached to the vehicle body. Because, the assembly of this kind of vehicle headlamp device can be facilitated.

(F. Embodiment) [FIGS. 1 to 4] The details of the vehicle headlight device of the present invention will be described below with reference to the illustrated embodiment.

In the illustrated embodiment, the present invention is applied to a unit movable type vehicle headlight device 1.

(A. Headlamp Unit) [FIGS. 1 to 3] 2 is a headlamp unit, which has a lamp body 3 having a recessed portion that is open substantially forward, and a front opening portion of the lamp body 3. It comprises a lens 4 attached so as to cover it and a light bulb 5 supported on the rear top of the lamp body 3. The lamp body 3 has a reflecting surface 3a facing forward, and the light emitting portion of the light bulb 5 is a lamp body. It is located in a lamp space 6 defined by 3 and the lens 4.

Headlight unit 2 is at points A, B and C (see FIG. 2).
Is a point supported by the unit support plate 7, point A is a tilting fulcrum portion near the one end of the lower end of the rear surface of the lamp body 3, and point B is a position spaced upward from point A. An adjustment part in the up-down direction, a point C is an adjustment part in the left-right direction at a position separated laterally from the point A, and brackets 8, 9 and 10 are attached to the tilt fulcrum part and the two adjustment parts. It is formed integrally with.

Reference numerals 11 and 12 each denote a part of the vehicle body (hereinafter, referred to as “partial vehicle body”). The partial vehicle bodies 11 and 12 are located behind the headlight unit 2 and are spaced apart from each other in the front-rear direction. The headlight unit 2 is mounted on the unit support plate 7 via a tilting fulcrum shaft and an aiming adjusting mechanism which will be described later.
The unit support plate 7 is fixed to the front partial vehicle body 11 so as to be tiltable in the vertical direction and the horizontal direction.

(B. Tilt fulcrum shaft, aiming adjustment mechanism [FIGS. 1 to 4] (b-1. Tilt fulcrum shaft) [FIGS. 1 and 2] 13 has a spherical portion 13a integrally formed at its front end. Is a tilting fulcrum shaft whose rear end is fixed to the unit support plate 7. Reference numeral 14 is a synthetic resin attached to a bracket 8 provided at the point A which is the tilting fulcrum part of the headlight unit 2. Made spherical receiver, spherical recess 14a having an opening on its rear surface
The spherical portion 13a of the tilting fulcrum shaft 13 is rotatably fitted therein.

(B-2. Aiming Adjustment Mechanism) [FIGS. 1 to 4] 15 is a vertical aiming adjustment mechanism, and 16 is a casing thereof. Then, inside the casing 16,
A worm body 17 (see FIG. 4) whose axial direction extends in the vertical direction is rotatably arranged and
A worm wheel 18 meshing with a worm gear 17a forming the lower part of the worm body and a drive gear 19 meshing with a pinion gear 17b forming the upper part of the worm body 17 are rotatably arranged. And a screw hole 18a which is coaxial with the insertion holes 16a formed in the front and rear walls of the casing 16.
(See FIG. 3) is formed, and the lower end of the operation shaft 20 is fixed to the center of the drive gear 19.

21 is an adjusting rod, which has a substantially cylindrical shape,
The intermediate portion 21a is formed as a screw shaft, the spherical portion 21b is integrally formed at the front end portion, and the pin press-fitting hole 21d is formed at the rear end portion 21c so as to penetrate therethrough in the direction orthogonal to the axial direction.
Is formed, and the screw shaft portion 21a is screwed into the screw hole 18a of the worm wheel 18.

22 is a rear end portion 21c of the adjusting rod 21.
The connector 22 has a substantially cylindrical shape, has a substantially U-shaped vertical cross section at its rear portion, and has a spherical fitting recess 22a having an opening at its rear end. The engaging slits 22b, 22b reaching the rear end are formed at positions opposite to each other with the shaft center of the wall portion corresponding to the spherical fitting concave portion 22a interposed therebetween, and the front end surface and the spherical fitting concave portion 22a are formed. A rod insertion hole 22c is formed between the rod insertion hole 22c and the spherical front end surface, and a pin press-fitting hole 22d is formed so as to extend across the rod insertion hole 22c. In the connector 22, the rear end portion 21c of the adjusting rod 21 is inserted into the rod insertion hole 22c and the pin press-fitting hole 22d and the adjusting rod 21 are inserted.
The coupling pin 23 is press-fitted into the pin press-fitting hole 21d formed in the above, so that it is fixed to the rear end portion of the adjusting rod 21 so as to rotate coaxially and integrally therewith.

Reference numeral 24 is a ball receiver attached to a bracket 9 provided at a point B, which is an adjusting portion in the vertical direction of the headlight unit 2, and has a spherical recess 24a having an opening on the rear surface. .

The casing 16 of the vertical aiming adjusting mechanism 15 is fixed to the rear surface of the upper end portion of the unit supporting plate 7, and the front portion of the adjusting rod 21 is projected forward through the hole 7a formed in the unit supporting plate 7. The spherical portion 21b is rotatably fitted in the spherical concave portion 24a of the spherical receiving body 24.

Reference numeral 25 denotes a left and right aiming adjusting mechanism (see FIG. 1) fixed to the unit support plate 7, and the front end portion of the adjusting rod 26 thereof is at the point C which is the adjusting portion in the left-right direction of the headlight unit 2. It is rotatably connected to the ball receiver 27 (see FIG. 2) attached to the bracket 10.

The left and right aiming adjustment mechanism 25 has a structure similar to that of the up and down aiming adjustment mechanism 15 described above, and the adjusting rod 26 is moved in the front-rear direction by the rotation of an operation shaft (not shown), so that the C of the headlight unit is changed. The points can be moved forward and backward.

(B-3. Attachment of Headlight Unit to Vehicle Body) The headlight unit 2 includes the tilt fulcrum shaft 13, the vertical aiming adjustment mechanism 15, and the left and right aiming adjustment mechanism 25.
Is supported by a unit support plate 7 via the, and the unit support plate 7 is fixed to the front partial vehicle body 11.

As a result, the headlamp unit 2 is supported by the vehicle body at the three points A, B, and C.

(C. Leveling Adjustment Mechanism) [FIGS. 1 to 4] Reference numeral 28 denotes a leveling adjustment mechanism.

Reference numeral 29 denotes a casing of the leveling adjusting mechanism 28, and a cylindrical portion 30 having a substantially cylindrical shape is provided on a front wall thereof so as to project forward, and a bearing is provided at a position coaxial with the cylindrical portion 30 on the inner surface of the rear surface wall. A recess 31 (see FIG. 3) is formed.

Reference numeral 32 is a driving body (see FIG. 3), and the driving body 32 integrally includes a substantially cylindrical front portion 33, a substantially cylindrical rear portion 34, and a substantially oval intermediate portion 35 when viewed in the axial direction. The front portion 33 is rotatably inserted in the tubular portion 30 of the casing 29, and the rear end of the rear portion 34 is formed in the casing 29.
Is rotatably inserted in the bearing recess 31 of the. Further, the hole 33a of the front portion 33 is formed so that its cross section has a substantially oval shape.

Reference numeral 36 is a worm wheel, which has a circular insertion hole 36a formed in the center thereof and an annular engagement projection 37 formed integrally with the rear surface so as to surround the insertion hole 36a. The inner peripheral surface of the protrusion 37 is formed to have a substantially oval shape when viewed in the axial direction. In such a worm wheel 36, a portion near the rear end of the front portion 33 of the drive body 32 is inserted into the insertion hole 36a, and the intermediate portion 35 of the drive body 32 is fitted inside the engaging projection 37. It is fitted so that it is supported by the driving body 32 so as to rotate integrally therewith.

38 is a motor arranged at the bottom of the casing 29, 39
Is a worm gear rotatably supported by the casing 29 and constantly meshed with the worm wheel 36. A transmission gear (not shown) is integrally formed at one end of the worm gear 39, and the transmission gear is connected to the output shaft of the motor 38. It is constantly meshed with the fixed output gear 38a.

Reference numeral 40 denotes an output rod, which has a shaft portion 41 having a substantially oval cross section and a substantially cylindrical outer shape which is short in the axial direction.
1 and a connector 42 formed integrally with the tip of the connector 1.

The connector 42 has an open front surface and a vertical cross-sectional shape of approximately U.
A ball-shaped fitting recess 42a having a character shape is formed, and engaging slits 42b, 42b reaching the front ends are formed at positions opposite to each other with the shaft center of the wall portion corresponding to the ball-fitting recess 42a interposed therebetween. Further, a flange-shaped spring contact portion 42c protruding outward is integrally formed at a position on the rear side from the position where the slits 42b of the connector 42 are formed.

Then, the shaft portion 41 of the output rod 40 is slidably inserted into the hole 33a of the front portion 33 of the driving body 32, and the driving body 32
Is rotated, the output rod 40 rotates integrally with the output rod 40 and is coupled so as to be relatively slidable in the axial direction.

When the motor 38 rotates, the rotation of the output gear 38a of the motor 38-the transmission gear (not shown) formed on one end of the worm gear 39-the worm gear 39-
It is transmitted to the driving body 32 via the worm wheel 36 and the driving body 32 is rotated, whereby the output rod 40
Is rotated.

The leveling adjustment mechanism 28 is attached to the rear surface of the rear partial vehicle body 12 so that the output rod 40 thereof is substantially coaxial with the adjusting rod 21 of the vertical aiming adjustment mechanism 15, and the attachment is performed by the casing. The mounting ear pieces 43, 43, ... Provided on the 29 are attached to the mounting bosses 44, 44 ,.
It is done by being fixed by 5.

The output rod 40 is projected forward through a rod insertion hole 12a formed in the partial vehicle body 12.

(D. Connection between adjusting rod and output rod)
[FIGS. 1, 3, and 4] 46 is an adjusting rod 21 of the vertical aiming adjusting mechanism 15 and an output rod 40 of the leveling adjusting mechanism 28.
A connecting rod for connecting and.

The connecting rod 46 has a cylindrical shaft portion 47 and the shaft portion 47.
Spheres 48, 48 'located at both ends of the sphere are integrally formed, and engaging pins are formed in holes 48a, 48'a formed to penetrate through the spheres 48, 48' through their sphere centers. 49,
49 'are press-fitted, and these engaging pins 49, 49'
Both ends of the are protruded from the spheres 48, 48 '.

The engagement pin 49 press-fitted into the front ball portion 48 and the engagement pin 49 'press-fitted into the rear ball portion 48' extend in directions orthogonal to each other when viewed from the axial direction of the connecting rod 46. It is located in.

And, such a connecting rod 46 has two spheres 4
Numerals 8 and 48 'are rotatably fitted into the spherical fitting recess 22a of the connector 22 fixed to the rear end of the adjusting rod 21 and the spherical fitting recess 42a of the connector 42 of the output rod 40. At the same time, both ends of the engaging pins 49, 49 'of the connecting rod 46 are engaged with the engaging slits 22b, 22b of the connector 22 and the engaging slits 42b, 4 of the connector 42.
2b respectively, which allows the two connectors 2
2 and 42 are connected via a connecting rod 46 so as to always rotate integrally.

Then, the adjusting rod 21 and the output rod 4
0 is connected via a connecting rod 46 so as to always rotate integrally, and the adjusting rod 2
1 and the portion where the output rod 40 is connected to the connecting rod 46 has a structure similar to a universal joint, so that even if the axes of the adjusting rod 21 and the output rod 40 are deviated from each other, the deviation is different from that of the connecting rod 46. Since it is absorbed by the connecting portion of the shaft, the coaxiality between the adjusting rod 21 and the worm wheel 18 and the coaxiality between the output rod 40 and the driving body 32 are maintained well even if there is such an axial deviation. Will be done.

Reference numeral 50 denotes a coil spring, which is externally fitted to the output rod 40 and the tubular portion 30 of the casing 29, and is provided on the front surface of the casing 29 and the spring contact portion 42 of the connector 42.
Since the output rod 40 and the connecting rod 46 are constantly urged to move forward by the elastic force of the coil spring 50, the spherical fitting recess 42a of the connector 42 is provided. The inner surface of the sphere 4 is the rear side of the connecting rod 46.
8 ', and the sphere portion 48 on the front side of the connecting rod 46 is pressed against the inner surface of the spherical body fitting concave portion 22a of the connector 22 with an appropriate elastic force, respectively.
Even if the adjusting rod 21 moves in the axial direction, the connection state of the adjusting rod 21 and the output rod 40 by the connecting rod 46 is reliably maintained.

(E. Aiming Adjustment, Leveling Adjustment) Therefore, aiming adjustment and leveling adjustment by the vehicle headlight device 1 configured as described above are performed as follows.

(E-1. Aiming Adjustment) When performing the aiming adjustment in the vertical direction, the operation shaft 20 of the vertical aiming adjustment mechanism 15 is rotated. Then, the rotation is transmitted to the worm wheel 18 via the drive gear 19 and the worm body 17, the worm wheel 18 is rotated, and the worm wheel 18 is prevented from moving in the axial direction by the casing 16.
Further, since the rotation of the output rod 40 connected to the adjusting rod 21 is blocked by the driving body 32, the rotation of the adjusting rod 21 itself is blocked. Therefore, the rotation of the worm wheel 18 is screwed into its screw hole 18a. It acts to feed the combined adjusting rod 21 axially. As a result, the adjusting rod 21 is moved in the axial direction, so that the ball receiver 24 provided at the point B of the headlamp unit 2 is moved in the substantially front-back direction, whereby the headlamp unit 2 is The straight line connecting the points A and C is tilted in a substantially vertical direction with the tilt axis as a tilt axis, whereby the irradiation direction of the headlight unit 2 is adjusted in the vertical direction.

Aiming adjustment in the left-right direction is performed by the left-right aiming adjustment mechanism 25. That is, when the operation shaft (not shown) of the left and right aiming adjustment mechanism 25 is rotated, the adjusting rod 26 moves in the front-rear direction, and the ball receiver 27 provided at the point C moves in the substantially front-rear direction. The lamp unit 2 is tilted substantially in the left-right direction with the straight line connecting the point A and the point B as the tilt axis, whereby the irradiation direction of the headlight unit 2 is adjusted in the left-right direction.

(E-2. Leveling Adjustment) The leveling adjustment is performed by rotating the motor 38 by a remote control means (not shown).

That is, as described above, since the output rod 40 rotates when the motor 38 rotates, the rotation is transmitted to the adjusting rod 21 via the connecting rod 46, and the adjusting rod 21 is rotated, and the adjusting rod 21 is rotated. Since the worm wheel 18 to which the rod 21 is screwed is prevented from rotating by the worm body 17, the adjusting rod 21 is attached to the worm wheel 1.
8 is screwed into or unscrewed from the screw holes 18a, and thereby is moved in the axial direction. As a result, the headlight unit 2 is tilted in the vertical direction.

(G. Effect of the Invention) As is apparent from the above description, the vehicle headlight device of the present invention has a tilting member that is tilted when changing the irradiation direction and an aiming adjustment mechanism for performing aiming adjustment. And a leveling adjustment mechanism for performing leveling adjustment, wherein the vertical aiming adjustment mechanism for performing aiming adjustment in the up and down direction and the leveling adjustment mechanism are arranged apart from each other in the front-rear direction. The adjusting rod of the vertical aiming adjusting mechanism and the output rod of the leveling adjusting mechanism are separately formed, and the adjusting rod and the output rod are connected by a universal joint.

Therefore, according to the vehicle headlamp device of the present invention, the output portion of the vertical aiming adjustment mechanism, that is, the drive member connected to the adjustment rod and the output portion of the leveling adjustment mechanism, that is, the drive member connected to the output rod, are provided. Even if there is axial misalignment between them, the axial misalignment is absorbed by the universal joint between the adjusting rod and the output rod, so that the adjusting rod and output rod do not come into close contact with the drive member to which they are connected. It is possible to prevent it almost certainly, so that the adjustment rod and the output rod can always be smoothly moved, and the mounting accuracy of the vertical aiming adjustment mechanism and the leveling adjustment mechanism to the vehicle body can be relaxed to some extent. The adjustment rod for adjustment and the leveling adjustment mechanism can be connected after the leveling adjustment mechanism is attached to the vehicle body. Because, the assembly of this kind of vehicle headlamp device can be facilitated.

Incidentally, the universal joint in the present invention may be of any form as long as the connecting portion for the adjusting rod of the vertical aiming adjusting mechanism and the output rod of the leveling adjusting mechanism has a universal joint-like structure, Of course, it is not limited to the connecting rod shown in the embodiment.

Further, although the present invention is applied to the so-called unit movable type headlight device in the above-described embodiment, the present invention is not limited to such an application example, and a reflector movable type. Can also be applied to.

[Brief description of drawings]

1 to 4 show an example of an embodiment of a vehicle headlight device according to the present invention. FIG. 1 is a side view showing a part of the headlamp device, FIG. 2 is a front view, and FIG. FIG. 4 is an enlarged sectional view of a main part, FIG. 4 is an enlarged exploded perspective view of the main part, and FIG. 5 is a side view showing an example of a conventional vehicle headlight device with a part cut away. DESCRIPTION OF SYMBOLS 1 ... Vehicle headlight device, 2 ... Tilt member, 15 ... Vertical aiming adjustment mechanism, 21 ... Adjustment rod, 28 ... Leveling adjustment mechanism, 40 ... Output rod, 22, 42, 46 …… Universal joint

Claims (1)

[Claims] 1. A tilting member tilted when changing an irradiation direction, an aiming adjusting mechanism for performing aiming adjustment, and a leveling adjusting mechanism for performing leveling adjustment, and a vertical aiming adjustment for aiming adjustment. A vehicle headlight device in which an aiming adjusting mechanism and a leveling adjusting mechanism are arranged separately in the front-rear direction, wherein an adjusting rod of the vertical aiming adjusting mechanism and an output rod of the leveling adjusting mechanism are formed separately. A vehicle headlight device characterized in that the adjusting rod and the output rod are connected by a universal joint.