JPS6164548A - Head lamp assembly for vehicle - Google Patents

Abstract

PURPOSE:To enable a head lamp assembly to be compact by arranging a rotary disc of a drive device to control the tilting movement of tilt members for changing the direction of irradiation within the head lamp assembly together with a movable unit and a drive unit. CONSTITUTION:A head lamp 1, the setting angle to a car frame of which can be changed, allows its direction of irradiation to be changed by the rotation of a motor 10 through a drive unit 49, a movable unit 49, a movable unit 45, and a rotary screw 40. A rotary disc 12 which controls the rotation of the motor 10 rotates accompanied with the rotation of the motor 10, and is positioned by the relative position among conductive sections 15 and 16 and a contact point 78. Here, the movable unit 45 and the drive unit 49 are arranged coaxially but the rotary disc 12 is arranged so that its shaft is shifted from the shaft of these units allowing them to be completely arranged within the head lamp assembly. And the rotary disc 112 is arranged with its shaft shifted enabling a control unit alone to be assembled as an independent unit, this configuration can enhance the accuracy in an installation of the control unit.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a novel vehicle headlamp device. For more information,
The angle at which the tilting member, which is held so as to be tiltable relative to the vehicle body, is attached to the vehicle body is determined by i! l! This relates to a vehicle headlamp device that can adjust the irradiation angle of the headlight in multiple stages by remote control from a seat changer, etc., and in particular, it relates to a vehicle headlamp device that can adjust the irradiation angle of the headlight in multiple stages by remote control from a seat changer. An object of the present invention is to provide a novel vehicle headlamp device in which a control section equipped with a control mechanism can be compactly incorporated into the headlamp device, thereby making the entire device more compact. It is something to do.

Background In mechanical vehicles, especially automobiles, the body and wheels are made of leaf springs.
When a large load is applied to the front or rear of the vehicle body, the vehicle body will sink forward or backward, and as a result, the headlights will sag. The illumination angle of the lights relative to the road surface changes, impairing driving safety, and if the headlights are directed upwards due to the vehicle moving backwards, there is a risk of causing severe dazzling to slow-moving drivers in oncoming vehicles.

Purpose of the Invention Therefore, the present invention provides an adjustment device that can adjust the irradiation angle of a headlamp by remote control from the driver's seat, and includes a mechanism for controlling a drive source for tilting a tilting member. An object of the present invention is to provide a new vehicle headlamp device that can compactly incorporate a control section equipped with the above into the headlamp device, thereby reducing the size of the entire device. .

Summary of the Invention In order to achieve the above-mentioned object, the vehicle headlight device of the present invention is a vehicle headlight device in which the direction of illumination of the headlight relative to the vehicle body can be changed, and the mounting angle relative to the vehicle body is changed. A movable body connected to the tilting member, a drive body that moves the movable body, and a drive that rotationally drives the drive body. and a rotary plate included in a control section that controls the drive section is rotated in response to rotation of the drive body, and the movable body and the drive body are disposed coaxially and rotated. It is characterized by the fact that the plates are arranged offset from their axes.

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following, details of a vehicle interior lighting device according to the present invention will be described in accordance with embodiments shown in the accompanying drawings.

FIG. 1 is an explanatory diagram showing the entire opening angle adjustment device for a vehicle headlamp according to the present invention, which is composed of a headlamp 1, a drive section 2, an operating section 3, and a power source 4. .

The headlamp l is held by a front light holding member 5, and a support piece 6 provided at the northern part of the holding member 5 is rotatably attached to the vehicle body, and the lower part 5a of the holding member 5 is driven. It is connected to the tip of the drive shaft 7 of the section 2. The drive unit 2 is the headlamp l.
It is provided with a drive shaft 7 that is fixed to the vehicle body and movable relative to the vehicle body, and when the drive shaft 7 is displaced relative to the vehicle body, the connection point between it and the headlight l is moved to the vehicle body. Therefore, the headlight l with respect to the vehicle body
The inclination angle of is changed. The operation unit 3 includes multi-stage changeover switches 8 and 9 that determine the angle of inclination of the headlight l with respect to the vehicle body.

FIG. 2 shows a control circuit of the irradiation angle adjusting device for a vehicle headlamp according to the present invention, and will be described in more detail using this diagram.

Reference numeral 10 denotes a DC motor included in the drive unit 2, and the drive shaft 7 is displaced with respect to the vehicle body by this motor 10.

Reference numeral 11 denotes a multi-stage switching control section included in the drive section 2, which includes a rotary plate 1-2 and a large number of fixed contacts 13A, 13B, . . . , 1
Consists of 3E, 14A, 14B, - Yu, 14E. Although not shown in the drawings, the rotary plate 12 has gear teeth formed on its outer peripheral surface, and is rotated clockwise and counterclockwise by rotation of a gear for driving the rotary plate, which will be described later, which is meshed with the gear teeth. It is rotated in the circular direction. Fixed contact 13A,
13B,..., 13E and 14A, 14B,..., 1
4E is attached to a suitable mounting member, and the rotating plate 1
The fixed contacts 13A, 13B, . . ., 13E of one group exist as two groups that are fixed to each other in relation to
and the other group of fixed contacts 14A, 14B,...Φ, 14
The relative positional relationship between E and the rotary plate 12 is changed as the drive shaft 7 is displaced.

Two conductive parts [5 and 16 (not shown in the drawing with a matte pattern) are provided on the surface of the rotating plate 12 that is in contact with the contacts 13A, 13B, ..., 13E and 14A, 14B, ..., 14E. (The same applies to other drawings.)
is formed.

The conductive parts 15 and 16 are approximately semicircular belt-shaped, which are formed by deleting two places approximately 180 degrees apart from a circular conductive region, and the deleted parts are used as insulating parts 17 and 18. There is.

Fixed contacts 13A, 13B, ..., 13E and 14A,
14B, . The fixed contacts 14A, 14B, . The fixed contacts in one group and the fixed contacts in the other group, which are arranged so as to fall within the rotation locus of -H, and which are given the same numerals with the same numerals, are conductive parts 15 and 16. It is placed at a position 180 degrees away from the center of rotation of the rotation locus. Such fixed contacts 13A, 13B, ..., 13E and 14A
, 14B, . When the other group of fixed contacts with the same additional code as the fixed contact is contacted with the other insulating part 18 (or 17), and in this state, the other group The arrangement is such that all fixed contacts are in contact with the conductive part 17 or 18.

19 and 20 are connection terminals arranged on the rotation axes of the conductive parts 15 and 16, and a group of fixed contacts 13A, 13B, 13E (or fixed contacts 14A, 14B, 13E)
ψ・, 14E) are arranged at both ends in the arrangement direction, one connection terminal 19 is always kept in contact with one conductive part 15, and the other connection terminal 20 is in contact with the other conductive part 16. Constant contact is maintained. One connection terminal 19 is connected to the forward rotation side input terminal 21 of the motor 910, and the other connection terminal f20 is connected to the reverse rotation side input terminal 22 of the motor 10.

Numerals 8 and 9 are multi-stage switching switches included in the operating section 3, and the contact switching operations of the switches 8 and 9 are performed in conjunction with each other. In this embodiment, the switch 8 is used as the operating side switch, and the switch 9 is used as the driven side switch, and the contact of the switch 9 is also changed by switching the switch 8.

The switch 8 has a movable contact 25 which is connected to the positive terminal 23 of the electric power R4 and has a common terminal 24, and a plurality of switching contacts 26A, 26B--, 26E whose connection to the common terminal 24 can be switched by the movable contact 25. It is equipped with The switching contacts 26A, 26B, . . . , 26E are the fixed contacts 13A, 1 of one group of the two fixed contact groups described above.
3B, life, and 13H are connected to the same additional code. The switch 9 also includes a movable contact 29 having a common terminal 28 connected to the ground circuit 27, and a plurality of switching contacts 30A, 30B, .
It is equipped with And the switching contacts 30A, 30B,...
..., 30E are the fixed contacts 14A, 1 of the other group described above.
4B, . . . , 14H are each connected to those having the same additional code. Therefore, fixed contact 1 of one group
3A, 13B, ---113E constitute a power supply side fixed contact group, and the fixed contacts 14A, 14B, ..., 1 of the other group
4E constitutes a group of fixed contacts on the earth side.

As mentioned above, the rotary plate 12 is connected to the motor lO of the drive unit 2.
is rotated as it is rotated,
In the illustrated embodiment, when the motor 10 is rotated in the normal rotation direction, the motor 10 is rotated in the counterclockwise direction, that is, in the direction of the solid line arrow in the figure.
When it is rotated in the reverse direction, it is rotated one clockwise, that is, in the direction of the dashed arrow in the figure.

When the motor 10 is rotated in the forward rotation direction, the headlight l is tilted in the direction shown by the solid arrow in the figure, that is, in the downward direction, and the motor lO is rotated in the reverse rotation direction. When, the headlight l is in the direction shown by the Wt line arrow in the figure,
That is, it is tilted in the direction in which it faces.

Then, select the switching contact 1a 26 A of the 4-way switch 8 and connect the movable contact 25 to it.
The current from the power source 4 flows through the path of common terminal 24 → movable contact 25 → switching contact 26 → power supply side fixed contact 13,
Further, the current flows from one of the conductive parts 15 or 16 which is in contact with the switching contact 26 selected by the movable contact 25 to the fixed contact 13, through one of the connecting terminals 19 or 20, and to the motor lO. Furthermore, a route from the motor 10 to the connecting terminal 20 or 19 → the conductive part 16 or 15 → the fixed contact 14 connected to the selected switching contact 30 → the selected switching contact 30 → the movable contact 29 → the ground circuit 27 is created. Therefore, the motor 10 is rotated forward or reverse.

When the motor 10 is driven to rotate, the drive shaft 7 is moved relative to the vehicle body, thereby tilting the headlight l upward or downward, and the rotating plate 12
is rotated. The rotating plate 12 is rotated, and its insulating part 17
and 18 are brought into contact with said selected fixed contacts 13 and 14, i.e. when said fixed contacts +3 and 14 leave contact with conductive parts 15 and 16, power supply 4 and motor 10
Since the connection between
movement is stopped. This causes the headlamp 1 to stop tilting.

3 to 5 show an example of a specific mechanism of the drive section 2, and this mechanism will be explained below. The mechanism shown in Figures 3 to 5 uses a composite adjustment mechanism in which an aiming mechanism and a leveling mechanism are integrated, and a control part consisting of a contact part and a conductive part is connected to the drive part. It is now available as a separate unit.

31 is a casing of the drive unit, which is fixedly attached to the vehicle body. 32 is the front wall 33 of the casing 31
This is an insertion hole formed in the center of the insertion hole 32, and the shape of the insertion hole 32 is approximately a regular octagon (see FIG. 4). 34 is a rear insertion hole formed in the center of the rear wall 35 of the casing 31, and the front insertion hole 32 and the rear insertion hole 34 are coaxially provided. 36 is the front wall 33 of the casing 31
An annular support part protruding from the inner surface of the central part toward the central part of the casing, and 37 is a central support wall protruding from the part wall 38 of the casing 31 toward the central part of the casing; A circular support hole 3 facing the support part 36 is provided at the tip of the central support wall 37 in the center of the casing.
9 is formed. Note that the annular support portion 36 and the support hole 3
The center of the hole 9 is arranged coaxially with the centers of the insertion holes 32 and 34.

40 passes through the central part of the casing 31 through the front insertion hole 32 and the rear insertion hole 34 in the front-back direction (in FIG. 3, the left side of the drawing is the front and the right side is the rear, The relationship follows this front-rear direction.) It is an adjustment screw provided in a penetrating manner, and a regular hexagonal head 41 is formed at the rear end, a sphere 42 is formed at the front end, and at least in the middle part. A spiral groove 43 is formed. The adjustment screw 40 has a spherical body 42 at its front end that engages with four spherical parts 44 that are formed in the lower part 5a of the headlamp unit holding member 5 so as to open toward the rear. It is connected to the lower end of the lamp unit holding member 5 in a ball joint shape.

45 is a cylindrical moving body formed with a chain hole 46 passing through the center, and the outer peripheral surface of the moving body 45 has a substantially regular octagonal shape when viewed along the axial direction (see Fig. 4). ), and a large diameter portion 47 having a circular outer peripheral surface is integrally formed at the rear end portion, and a screw groove 48 is formed on the outer peripheral surface of the large diameter portion 47. The chain hole 46 of the moving body 45 has an L
The middle portion of the adjusting screw 40 is screwed together. Further, a portion of the movable body 45 in front of the large diameter portion 47 is inserted into the front insertion hole 32 of the casing 31 described in [1]. Since the outer shape of the movable body 45 and the shape of the front insertion hole 32 are both regular octagonal shapes, the movable body 45 is prevented from rotating and is only allowed to move in the axial direction. It is held in the casing 31 in the same state.

Reference numeral 49 denotes a driving body comprising a cylindrical portion 50 formed in a substantially cylindrical shape and a wheel gear portion 51 formed in a flange-like protrusion on the outer peripheral surface of the cylindrical portion 50. A support hole 52 that opens forward is formed in the cylindrical portion 50, and a spur gear portion 53 is formed to protrude from the center of the rear end surface.
An insertion hole 54 communicating between the rear end surface and the rear end of the support hole 52 is formed. The front portion of the cylindrical portion 50 of the driver 49 is rotatably fitted into the annular support portion 36 of the casing 31, and the rear portion of the cylindrical portion 50 is fitted into the central support wall 37 of the casing 31. The step portions 55 and 55 formed at the base of the wheel gear portion 51 are rotatably fitted into the formed support hole 39, and are in contact with the rear end of the annular support portion 36 and the front surface of the central support wall 37, respectively. The drive body 33 is rotatably supported with respect to the casing 31 by these. In the movable body 45, a screw @48 formed on the outer peripheral surface of the large diameter portion 47 is screwed into a groove formed on the inner peripheral surface of a support hole 52 formed in the cylindrical portion 50 of the driving body 49, As a result, the moving body 45 is held by the driving body 49.

A worm gear 56 is connected to an output shaft 57 of a motor 1O held within the casing 31, and the worm gear 56 meshes with gear teeth of the wheel gear portion 51 of the drive body 49.

A DC motor with a speed reduction mechanism 58 is used as the motor IO.

In addition, the chain hole 46 of the movement 1445 and the adjustment screw 40!
l! ! The screwing relationship with the groove 43 is such that when the adjusting screw 40 is rotated ΦL times in the direction indicated by the arrow 59 in the figure, the adjusting screw 40 can move toward the headlight unit side. The type groove 4 formed in the support hole 52 of the drive body 49 and the large g portion 47 of the movable body 45 is
The ambiguous relationship with 8 is such that when the driving body 49 is rotated in the direction shown by the arrow 60 in the figure, the moving body 45 can move from the front 1111 light unit 1 to the far side 5. Nai! It is said that he is in charge of l\￥.

A so-called aiming adjustment in which the downward irradiation angle of -F of the headlamp unit 1 is adjusted by manually operating the adjustment screw 40 is performed as follows. Hit and adjust step 1. When the screw 40 is rotated once in the direction indicated by the arrow 59, the adjusting screw 40 is screwed into the chain hole 46 of the movable body 45, and is moved toward the headlamp unit l. The light unit 1 has a support piece 6
．． It is rotated in the L direction about the support point 7 as the rotation center. Also, turn the adjustment screw 40 in the opposite direction of arrow 59^0
When rotated, the adjustment screw 40 is returned to the chain hole 46 of the movable body 45, and is moved in a direction away from the headlamp unit 1, thereby rotating the headlamp l downward. be done.

Next, the operation of moving the moving body 45 and leveling the headlamp 1 is performed as follows. That is, when the motor IO is rotated in the normal direction, the worm 56 moves in the direction of the arrow 61 in the figure.
As a result, the wheel gear portion 51 that meshes with the worm 56 is rotated in the direction shown by arrow 60 in the figure, so that drive body 49 is rotated in the direction shown by arrow 60. Then, when the driving body 49 is rotated in the direction shown by the arrow 60, the movable body 45 is rotated by the adjusting screw 4.
The headlight unit (1) is moved away from the headlight unit (1) while maintaining the value (0). As mentioned above, this means that the moving body 45
Since the rotation is jJI +), the large diameter portion 47 of the movable body 45, which is threadedly engaged with the groove on the inner peripheral surface of the support hole 52 of the drive body 49, is rotated by the rotation of the drive body 49. This is because the light is sent toward the side far away from the lighting unit 1. In this way, when the movable body 45 is moved away from the headlamp unit 1 while holding the adjustment screw 40, the headlamp unit 1 is rotated in a downward direction. Furthermore, when the motor 10 is reversed, the worm 56 is rotated in the direction opposite to the arrow 61, which causes the driver 49 to be rotated in the direction opposite to the arrow 60. The headlight unit is moved toward the light unit l-1 side, and the headlight unit is rotated upward.

A recess 62 is formed in the lower half of the rear portion of the casing 31, and a notch 63 is formed in the recess 62. Further, a cutout window 64 is formed in the side wall facing the recess 62, and the spur gear 53, which is integrally formed with the drive body 49, is exposed to the outside through the cutout window 64.

Next, the control mechanism will be explained.

65 is a casing, and 66 is a rear plate that covers the rear surface of the casing 65.

67 is a transmission gear. The transmission gear 67 is connected to the casing 6
A large diameter gear 68 that is rotatably supported within the drive body 5 and meshes with the spur gear portion 53 of the drive body 49;
8 and a small diameter gear 69 integrally formed. A portion of the large-diameter gear 68 is exposed to the front side of the casing 65, and its peripheral edge is arranged so as to protrude slightly outward from the outer edge of the casing 65.

Reference numeral 12 denotes a rotating plate made of an insulating material such as synthetic resin, and is formed into a substantially disk shape. The rotating plate 12 is rotatably supported between the casing 65 and the contact plate 70 supported by the rear plate 66.

Two semicircular conductive parts 15 and 16 are formed on the rear surface of the rotating plate 12. In addition, rotating plate 1
A gear 471 is formed on the outer peripheral surface of the transmission gear 2, and the gear teeth 71 mesh with the small diameter gear 69 of the L transmission gear 67.

The contact plate 70 may be made of an insulating material such as synthetic resin, for example,
It is formed into a rectangular plate shape, and is attached to the rear plate 66 with a slight gap between it and the rotary plate 12. Contact plate 70# is the above rotating plate 1? A large number of through holes 72, 72, and 11 are formed along positions facing the rotation loci of the conductive parts 15 and 16 formed in the conductive parts 15 and 16.

73 is a printed wiring board integrally attached to the rear surface of the contact plate 70, and the contact plate 7 of the board 73
0, each yt communication hole 2, 72 . A large number of conductive terminals 74, 74 and φ· are printed at positions facing the . A notch 75 is formed on one side edge of the substrate 73.
Further, a cord is provided on the rear plate 66 at a position corresponding to the notch 75.

An insertion hole 76 is formed. '77 is a code.

Although not shown, a printed wiring film extending from each conductive terminal 74, 74, . . . to the edge of the notch 75 is formed on the printed circuit board 73.

78, 78, . . . are spherical contacts made of a conductive material, and each contact 78, 78, .・A coil made of a conductive material is arranged on the side facing the rotating plate 12 of the fist, and between each contact 78, 78, . Spring 79.79,
The fist/Φ is inserted in a compressed state, and each contact 78 is
．． 78, the issue is the conductive parts 15 and 16 of the rotating plate 12 or the insulating parts 17 and 1 formed between the conductive parts 15 and 16
8 and is biased to ensure contact with the conductive parts 15 and 16 of the rotary plate 12 by coil springs 79, 79, . . . ! The conductive terminals 74, 74 of the substrate 73 are electrically connected.

Then, as described above, the casing 65 in which each component is assembled is fixed in the recess 62 at the rear of the casing 31 by means such as screwing. At this time, the large diameter gear 68 of the transmission gear 67 supported by the casing 65 passes through the cutout window 64 provided in the casing 31 and meshes with the spur gear portion 53 formed integrally with the drive body 49.

Thus, when the driving body 49 is rotated, the transmission gear 67 having a large diameter gear 68 that meshes with the spur gear portion 53 formed integrally with the driving body 49 is rotated, and when the transmission gear 67 is rotated, The rotary plate 12 having the gear @71 meshing with the small diameter gear 69 of the transmission gear 67 is rotated. Rotating plate 1
2, the spherical contacts 78 and 78 (corresponding to the fixed contacts 13 and 14 in the circuit shown in FIG. 12 insulation parts 17 and 1
This process is continued until it reaches a position where it touches 8. Then, when the selected contacts 78, 78 come into contact with the insulating parts 17 and 18 of the rotary plate 12, the rotation of the motor 10 is stopped.
The rotation of F is stopped, and the rotation of the rotating plate 12 is stopped.
I am forced to do it.

Next, the operation of adjusting the irradiation angle of the headlight 1 by operating the operation switch 8 will be described in more detail using specific examples using the 61st closings (A) to (D).

First, a case will be described in which the OFF #I) contact 26C is selected in the changeover switch 8 from the state shown in FIG. 6(A) and the movable contact 25 is connected to it.

At the same time as the movable contact 25 of the changeover switch 8 and the changeover contact 26C are connected, the movable contact 29 of the changeover switch 9 and the changeover contact 30C are connected. It is connected to the power source 4, and the ground side fixed contact 14C is grounded via the changeover switch 9. In the state shown in FIG. 3A, the power supply side fixed contact 13C is in contact with one of the conductive parts 15, and
Since the ground side fixed contact 14c is in contact with the other conductive part 16, the current from the power source 4 is transferred from the movable contact 25 of the changeover switch 8 to the changeover contact 26C to the fixed contact 13C to the conductive part 1.
5 → Connection terminal 19 → Forward rotation side input terminal 21 of motor 10 →
The flow is as follows: reverse input terminal 22 of motor IO → connection terminal 20 → guide section 16 → fixed point 14C → changeover contact 30C → movable contact 29 of changeover switch 9 → ground. Therefore, the motor 10 is rotated one time. When the motor 10 is rotated in the normal direction, the drive shaft 7 (adjusting screw 40 held by the movable body 45 in the above-described adjustment mechanism) is moved away from the headlamp, thereby causing the headlamp 1 to move to the first position. It is rotated in the direction shown by the solid line arrow in Figure 2. At the same time, the rotary plate 12 is rotated counterclockwise, and the conductive part 15 first leaves contact with the fixed contact 13B, then leaves contact with the fixed contact 13C, and the fixed contact 13c is insulated. 17, the conductive part 16 first leaves contact with fixed contact 14B, then leaves contact with fixed contact 14C, and then contacts fixed contact 1.
4c comes into contact with the insulating part 18. That is, both the power supply side fixed contact 13c and the ground side fixed contact 14c are placed in a state in which they are not in contact with the conductive parts 15 and 16 (the state shown in FIG. 6(B)). In this state, motor 1
0 is disconnected from the power source 4, its rotation is stopped, and the rotation of the rotating plate 12 and the drive shaft 7 (adjusting screw 4) are stopped.
0) is also stopped. Therefore, the headlight 1 is driven by the drive shaft 7.
The direction is determined by the tilt angle at the time when the movement of the adjustment screw 40 is stopped.

Next, a case will be described in which the changeover contact 26B is selected by the changeover switch 8 and the movable contact 25 is connected to it from the state shown in the sixth frame (C). Movable contact 25 of changeover switch 8
When the changeover contact 26B is connected, the movable contact 29 of the changeover switch 9 and the changeover contact 30B are connected, and the power supply side fixed contact 13B is connected to the power supply 4 via the changeover switch 8. Contact 14B is grounded via changeover switch 9. In the state shown in FIG. 4(C), the power supply side fixed contact 13B is in contact with the conductive part 16, and the earth side fixed contact 14B is in contact with another conductive part 15, so that the power supply side fixed contact 13B is in contact with another conductive part 15, so that Current is selector switch 8
Movable contact 25 → switching contact 26B → fixed contact 13B → conductive part 16 → connection terminal 20 → reverse rotation side input terminal 22 of motor 10 → motor IO → forward rotation side input terminal 21 of motor 10 →
The flow is as follows: connection terminal 19 → conductive part 15 → fixed contact 14B → switching contact 30B → movable contact 29 of changeover switch 9 → ground. The motor 10 is therefore reversed. When the motor 10 is reversed, the drive shaft 7 (adjustment screw 40) is moved toward the headlight L, and the headlight 1 is thereby rotated in the direction indicated by the dashed arrow in FIG. . At the same time, the rotary plate 12 is rotated clockwise, the conductive part 16 is released from contact with the fixed contacts 130.13c and 13B in this order, and the fixed contact 13B is brought into contact with the insulating part 17. , while the conductive part 15 has fixed contacts 14D, 14c, 14
The fixed contact 14B is released from contact with the insulating part 18 in this order. That is, both the power supply side fixed contact 13B and the ground side fixed contact 14B are placed in a state where they are not in contact with the conductive parts 15 and 16 (see FIG. 6).
The state shown in D). ), in this state, the motor lO is disconnected from the power source 4, so its rotation is stopped F,
Rotation of rotary plate 12 and drive shaft 7 (adjusting screw 40)
movement will also be stopped. Therefore, the direction of the headlight is determined by the tilt angle at the time when the movement of the drive shaft 7 (adjusting screw 40) is stopped.

In addition, in the control circuit shown in FIG. 2, the fixed contact 13
．． 14 are provided, and the tilting of the headlight unit l-1 is controlled in five stages. However, if a large number of through holes 72 are formed in the contact plate 70 as shown in the figure, the tilting of the headlight unit l-1 can be controlled as needed. By using any one of them, the number of control stages can be appropriately selected within the range of the number of through holes 72. For example, through hole 72 for fixed contact
If 20 are prepared, to create the circuit shown in Figure 2, only 10 of them are used and the remaining 10 are left as idle. Therefore, if 20 through-holes are prepared, it is possible to easily manufacture a device that controls the irradiation angle of the headlamp at an appropriate number of steps of 10 or less depending on the vehicle to which the device is applied.

Effects of the Invention As is clear from the above description, the vehicle headlight device of the present invention is a vehicle headlight device in which the irradiation direction of the headlight can be changed with respect to the vehicle body. At one point where the tilting member whose angle is changed is supported by the vehicle body or a member fixed to the vehicle body, a movable body connected to the tilting member, a drive body for moving the movable body, and a rotation of the drive body are provided. and a rotating plate included in a control unit that controls the driving unit is rotated in response to rotation of the driving body, and the movable body and the driving body are coaxially arranged. The rotating plates are arranged offset from their axes.

Therefore, according to the present invention, the rotary plate of the drive control unit for controlling the tilting operation of the tilting member that changes the irradiation direction of the headlight is compactly installed in the headlamp device together with the moving body and the driving body. It becomes possible to do so.

In addition, since the rotary plate is arranged offset from the axes of the moving body ψ and the driving body, only the control section can be assembled as a separate unit, as shown in the example, and the assembly precision of the control section can be improved. can be taken as a thing.

In each of the embodiments described above, the tilting member that changes the irradiation direction of the headlamp 1 is the headlamp 1 itself, but in the present invention, the tilting member is not limited to the headlamp 1 itself.
For example, the lamp body of the headlamp 1 is fixed to the vehicle body, the reflector is held tiltably relative to the lamp body, and the tip of the moving body (adjustment screw) is connected to a part of the reflector.
The reflecting mirror may be tilted by this.

Further, in the embodiments described above, a motor was used as a drive source for driving the drive shaft, but a hydraulic cylinder or the like may also be used as the drive source depending on the case. When a hydraulic cylinder is used as the drive source, a rack mechanism may be used as a means for rotating the drive body.

Further, in the above embodiment, the conductive part was provided on the rotating plate and the conductive part was rotated with respect to the fixed contact. It is also possible to install the fixed contact in a rotary manner.

[Brief explanation of drawings]

1 to 6 show an example of the implementation of the vehicle headlamp device of the present invention, in which FIG. 1 is a diagram showing the overall concept, FIG. 2 is an overall circuit diagram, and FIG. 3 is a diagram showing the overall concept. Vertical cross-sectional side view of the drive unit, No. 4
The figure is an exploded perspective view of the main parts of the drive section, and figure tA5 is A- in Figure 3.
A sectional view taken along line A and FIGS. 6(A) to 6(D) are plan views of essential parts showing an example of the operation of the rotary plate. Explanation of symbols 1... Headlight (tilting member), 12... Rotating plate, 40... Adjusting screw,

Claims (1)

[Claims] In a vehicle headlamp device in which the irradiation direction of the headlight can be changed with respect to the vehicle body, one feature is that a tilting member whose mounting angle with respect to the vehicle body can be changed is supported by the vehicle body or a member fixed to the vehicle body. The apparatus includes a movable body connected to the tilting member, a drive body for moving the movable body, and a drive section for rotationally driving the drive body, and a rotating plate included in a control section for controlling the drive section. A vehicle headlight device configured to rotate in response to the rotation of a driving body, and characterized in that the movable body and the driving body are disposed on the same axis, and a rotary plate is disposed offset from their axes.