JPS59195441A - Headlamp device for vehicle - Google Patents

Abstract

PURPOSE:To simplify and minimize a structure while using main parts of an aiming mechanism substantially in common with those of a leveling mechanism by arranging an optical axis adjusting screw, a moving body, and a driving body on the same axis with each other. CONSTITUTION:For an aiming adjustment at vehicle completion, etc., turning an adjusting screw 88 restricted in its movement by a stopper 94 causes a nut 95 to go backward and a headlamp 1 to be turned downward via a headlamp holding member 5. When the adjusting screw 88 is reversely turned, the headlamp is turned upward. Further, for a leveling adjustment of the headlamp 1 during car running, turning a driving body 33 with a motor 41 causes a moving body 90 to move back and forth, and also the adjusting screw 88 to be moved by the stopper 94, allowing the optical axis of the headlamp 1 to be adjusted. Hereby, it is possible to use main parts of both mechanisms substantially in common with each other to permit the structure to be simplified and minimized.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a novel vehicle headlamp device. The revision 1-< is the previous 1++;, the irradiation angle of the light can be changed with respect to the car body, and the irradiation angle that will cause fire to the car body when the W vehicle is completed or when the vehicle is inspected can be changed. adjustment, i.e., Iso 4//j for initial aiming, and adjustment of the irradiation angle according to changes in the load applied to the vehicle body during driving,
In other words, it is equipped with a mechanism for leveling, and a mechanism for aiming 91 and a mechanism for leveling. It is an object of the present invention to provide a novel vehicle headlamp device whose structure can be simplified and downsized by making almost everything common.

Background technology and its problems 4! The octopus, especially the front light burst for automobiles, is equipped with an adjustment mechanism to adjust the irradiation angle to 11 objects to a normal state. This adjustment mechanism is 211
1! It can be roughly divided into two types. One is electric 11φ
This is an adjustment mechanism (hereinafter referred to as the aiming mechanism) for performing initial aiming to determine the irradiation angle of the headlight when completing the vehicle or inspecting the vehicle. This aiming mechanism usually involves attaching the lamp body of the illumination light to the vehicle body using an assisting screw or the like.
The structure is such that the headlight is tiltably supported at one to three points, and this supported point can be moved by operating an assisting screw or the like to change the angle of the headlight relative to the vehicle body. . Another adjustment mechanism is driving 11! This is an adjustment mechanism (hereinafter referred to as a leveling mechanism) for performing so-called leveling to adjust the irradiation angle to a +E L shape 51j according to changes in the load applied to the vehicle body. This leveling mechanism connects a drive shaft to the lower part of the lamp body of the headlight, and operates this drive shaft manually or with appropriate power by remote control from the driver's seat, thereby raising and lowering the 4i3 light relative to the vehicle body. It has a structure that allows you to change the take-up angle in the direction of the blade.

In this way, there are two types of mechanisms for adjusting the illumination angle of vehicle headlights relative to the vehicle body: the aiming mechanism and the leveling mechanism, and some vehicles may be equipped with these two types of adjustment mechanisms. . In this case, if the Aiming %i 4M and the Rehe ring mechanism are kept as separate mechanisms and are related to 1iil pi, +, fire], the adjustment point of the headlight or each number, and the number There is a problem that equal forces are applied to the adjusting shaft parts at each adjustment point, making the structure complicated.

OBJECTS OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and the mechanism for performing aiming and the mechanism for performing Rem 1 link are We aim to provide a new ψ vehicle acrobatic device that has a simplified structure and can be constructed in a compact manner by making all of the main 748-minute rays of both mechanisms common. It is something.

Summary of the Invention "b" The present invention provides an axle lamp illumination device for a vehicle in which the required direction of the headlight can be changed with respect to the vehicle body in order to achieve the above-mentioned purpose. At one point in which the tilting part, whose take-up angle with respect to the vehicle is changed, is supported on the vehicle body or I4+, a member fixed to the body, an adjustment screw whose tip is connected to the tilting member and the j/A+ adjustment A movable body that screws, a drive body that moves the movable body, and a drive unit that drives the driven body; It is characterized by the presence of

By doing so, it is possible to share most of the main 8B parts of both the aiming mechanism and the leveling mechanism, and to provide a novel vehicle headlight device that can be configured simply and compactly. I can do it.

1] Details of the vehicle headlamp device according to the present invention will be described in accordance with the embodiments shown in the drawings.

Embodiment 1) Figures 1 to 6 of i' illustrate the first performance and example of the vehicle headlamp device of the present invention.

In the figure, 1 is the front 11 ((pore) of the light unit. 2 is the reflector part, its inner surface is a irregular surface with a rotation speed of m, and a light bulb 3 is attached to the center of the rear part. 4 5 is a lens, which is attached to the reflecting mirror part 2 so as to cover its front opening. 5 is a support member for the front 1 lamp unit, and supporting pieces 6 and 7 are protruded from the upper end thereof. 8 and 9 are thrusting screws, the heads of these thrusting screws 8 and 9 are engaged with notches 10 and 10 formed in each support piece 6 and 7, and each tip 1 is engaged with a notch 10.
is screwed into a nut 12 fixed to the middle body 11, and coil springs 13.13 are inserted in a compressed state between each support piece 6.7 and the vehicle body 11. The support pieces 6 and 7 are pressed against the heads of the assisting screws 8 and 9 by the elastic force of the coil springs 12 and 12, and when the lower part of the i11 illumination l is moved in the front and back direction, each support piece 6 and 7 can be tilted together with the headlamp 1 against the elastic force of the coil springs 12 and 12.

Reference numeral 14 denotes a connecting portion provided at a position corresponding to the lower portion of the headlamp unit holding member 5 and directly below the support moon 7, and the tip of an adjustment screw to be described later is connected to this connecting portion 14.

Next, a mechanism in which the aiming mechanism and the leveling mechanism are combined will be described with reference to FIGS. 3181 to 5.

15 is a casing, which is fixedly attached to the vehicle body. Reference numeral 16 denotes an insertion hole formed in the center of the front wall 17 of the casing 15, and the insertion hole 16 has a substantially regular octagonal shape (see FIG. 4). 18 is casing 1
4, and the front insertion hole 16 and the rear insertion hole 18 are coaxially provided. Reference numeral 20 denotes an annular support portion protruding from the central inner surface of the front side wall 17 of the casing 15 toward the center of the casing, and 21 denotes an upper wall 22 of the casing 15 protruding toward the center of the casing. This is a central support wall, and a circular support hole 23 facing the support portion 20 is formed at the tip of the central support wall 21 in the center of the casing.

24 is the center of the casing 15, <11 is passed through the front insertion hole 16 and the rear insertion hole 18 in the +tir rear force direction (in FIG. The relationship between the front and rear force directions in the explanation follows this front and rear force direction.
6 is formed, and a groove 2 is formed at least in the middle part.
7 is formed. The adjustment screw 24 is adjusted so that the front end of the adjustment screw 24 is engaged with the four spherical parts 28 formed in the connection 1X++14 of the headlamp unit holding member 5 so as to open toward the rear thereof. It is connected to the lower end of the unit holding member 5.

29 is a cylindrical moving body formed with a screw hole 30 passing through the center, and the outer peripheral surface of the moving body 29 has a substantially regular octagonal shape ('J'r 4 lΔ Reference pi, j
, ), and a large diameter part 31 having a circular outer peripheral surface is integrally formed at the rear end, and a screw groove 32 is formed on the outer periphery 1.I'ij of the large diameter δI (31). The adjusting screw 24 is inserted into the screw hole 30 of the movable body 29.
The middle part of the two is screwed together. Further, the movable body 29 is inserted into the front insertion hole 16 of the case sink 15 by 11,110,000 86 minutes from the large diameter portion 31.

Since the outer shape of the movable body 29 and the shape of the front insertion hole 16 are both regular octagonal shapes, the movable body 29 is prevented from rotating and is only capable of eight movements in the axial direction. It is held in the casing 15 in this state.

Reference numeral 33 denotes a driving body consisting of a cylinder 7;ll 34 formed in a substantially cylindrical shape and a wheel gear 35 formed to protrude like a flange from the outer peripheral surface of the cylinder part 34. A support hole 36 that opens forward is formed in the cylindrical portion 34, and a spur gear portion 37 is formed protruding from the center of the rear end surface. An insertion hole 38 is formed which communicates with the rear end of the holder. The driving body 33 has its cylindrical portion 34 rotatably fitted into the annular support portion 20 of the casing 15, and the rear portion of the cylindrical portion 34 is attached to the LIJ central support +l rp21 of the casing 15. Rotatably fit into the support hole 23,
Hole 4 - A step 7 is formed at the base of the gear part 35.
39, 39 is the rear end of the annular support part 2o and the center support I? 1
111 of 21], and these (Thus, Sl<! . The movable body 29 has a large diameter portion 31'8. Ji';
The groove 32 formed in the cylindrical portion 31 of the drive body 33 is formed on the inner circumferential surface of the support hole 36 formed in the cylindrical portion 31 of the drive body 33. , whereby the moving body 291 is held by the driving body 33.

Reference numeral 40 denotes a worm gear which is phase-transmitted within the casing 15 and is connected to the output shaft 421 of the Pcomorph 41.
It meshes with the gear teeth of l/X. As the morph 41, a straight 1fe motor car equipped with a deceleration mechanism 43 is used.

The threaded relationship between the threaded hole 30 of the movable body 29 and the threaded groove 27 of the adjustment screw 24 changes when the adjustment screw 24 is rotated in the direction shown by the arrow 44 in the figure. The screw 24 is shaped like a clamshell so that it can move toward the headlamp unit 1 side, and the hole 3 for supporting the drive body 33 is provided.
The screwing relationship between the two movable bodies 6 and the groove 32 formed in the large diameter portion 31 of the movable body 29 is such that when the drive body 33 is rotated in the direction shown by the arrow 45 in the figure, the two movable bodies are connected to the headlamp unit 1. They are said to have a screwed relationship that allows them to be moved far away from each other.

Aiming, which involves manually operating the adjustment knob 24 to adjust the illumination angle in the upper direction of the headlamp unit 1, is performed as follows. That is, by rotating the adjusting screw 24 in the direction shown by the arrow 44, the adjusting screw 24
4 is screwed into the threaded hole 30 of the movable body 29, and is moved by the force of the headlamp unit 1, whereby the headlamp unit 1 connects the support point with the support piece 6.7. is rotated upward using the rotation axis. Also, by rotating the adjustment screw 24 in the direction opposite to the arrow 44,
The adjustment screw 24 is screwed back into the screw hole 30 of the movable body 29 and is moved in the direction away from the headlamp unit 1, thereby causing the headlamp 1 to move downward one step at a time. be done.

Aiming adjustment of the headlamp unit 1 in the left and right directions is carried out by rotating the ajiastic screw 8 by screwing the 9 into the nut 12 fixed to the middle rest 11 or unscrewing it. It will be done. For example, if the azimuth screw 8 is screwed into the nut 12, the support piece 6 will be moved closer to the vehicle body 11, so the headlamp unit 1 will be supported). The point where the support 1 is supported by the azimuth screw 9 and the adjustment screw 24 and the screw connection 31+ in the lower part
It is rotated in the leftward direction in FIG. 1 using the line connecting the connection point with 14 as the rotation axis. Also, the headlight 22'h
1 in the rightward direction in FIG.
Screwing it back against the drive body 29 is easy.

Next, the operation of moving the moving body 29 and leveling the headlight 1 is performed as follows. That is, when the motor 41 is rotated in the normal direction, the worm 40 is rotated in the direction shown by the arrow 46 in the figure, and thereby the wheel gear part 35 that is in sync with the worm 40 is rotated in the direction shown by the arrow 45 in the figure. , the driving body 33 is rotated in the direction of arrow 45 by 5J\. Then, when the driving body 33 is rotated in the direction shown by the arrow 45, the movable body 29 is rotated by the adjusting screw 2.
4 is moved to the far side from the headlamp unit 1 while holding it. This is because, as described above, since the moving body 29 is prevented from rotating, the moving body 33 is rotated and is engaged with the threaded groove on the inner peripheral surface of the support hole 36 of the driving body 33. This is because the large diameter portion 31 of 29 is sent toward the side far away from the headlamp unit 1. In this way, the movable body 29 moves forward 1 while holding the adjustment screw 24.
When the headlamp unit 1 is moved away from the unit 1, the headlamp unit 1 is rotated in a downward direction. Further, when the motor 41 is reversed, the worm 40 is rotated in the direction opposite to the arrow 46, and thereby the driving body 33 is rotated in the direction opposite to the arrow 45, so that the movable body 29 can rotate the headlight while holding the adjustment screw 24. The headlight unit is moved toward the light unit 1 side, and the headlight unit is rotated upward.

Next, a control mechanism and a control circuit for controlling the drive of the motor 41 will be explained.

First, the control mechanism will be explained.

47 is a transmission gear. The transmission gear 47 is connected to the casing 15
It is rotatably supported between the center support wall 21 and the rear wall 19 of the drive body 33, and includes a large-diameter gear 48 that meshes with the spur gear portion 37 of the drive body 33; A small diameter gear 49 is formed.

Reference numeral 50 denotes a rotating plate made of an insulating material such as synthetic resin, and is formed in a substantially circular shape. An insertion hole 51 through which the adjustment screw 24 is inserted is formed in the center of the rotary plate 50, and four annular portions 52 are formed on the 111th surface, and two semicircular holes 52 are formed on the rear surface. Conductive parts 53 and 54 are formed. 55 is the central support wall 21 of the casing 15.
The one-turn plate 5o is a semi-annular support protrusion that protrudes from the annular recess 52, and the support protrusion 55 is engaged with the annular recess 52, so that the one-turn plate 5o is rotatably supported with respect to the casing 15. Furthermore, gear teeth 56 are formed on the outer peripheral surface of the rotary plate 50, and the gear teeth 56 mesh with the small diameter gear 49 of the transmission gear 47.

57 is a contact plate made of an insulating material such as synthetic resin and formed into a rectangular plate shape, and is attached to the rear wall 19 of the casing 15 with a slight gap between it and the rotation plate 50. ing. A large number of through holes 58, 58, and ψ are formed in the contact plate 57 along positions facing the rotational loci of the conductive parts 53 and 54 formed in the rotating rotary plate 50, and An insertion hole 59 into which the adjustment screw 24 is inserted is formed in the center.

Reference numeral 60 denotes a printed wiring board 11y mounted integrally with the rear surface of the L contact plate 57, and each of the printed wiring boards formed on the contact plate 57 is provided on the surface of the board 6° facing the contact plate 57. Conductive terminals 61.61, φψ or 2 at 1ξ facing through holes 58, 58, . . . Printed and formed. Then, on one side edge of the substrate 60, there is a νJ missing ffl+ 62
Also, a cord insertion hole 63 is formed at a position corresponding to the rear B1 (v on the wall 19) protrusion 62 of the casing 15. 64 is a code. In addition, 1Δ
Although not shown, a wiring film is formed on the printed circuit board 60, extending from the six-conductor terminals 61, 61, . . . to the edge of the notch 62. 65
Ha, il! , is an insertion hole into which the screw 24 is inserted.

66, 66, . . . are spherical contacts made of conductive material, and each contact 66, 66, . Coil springs 67.67 made of a conductive material are disposed on opposite sides and are arranged between each contact 66.66, . . . and each conductive terminal 61.61, . . . of the printed wiring board 60.
... are inserted in a compressed state, and each contact 66 is
．． 66, ·ψ· are the conductive parts 53 and 54 of the normal rotating plate 5o
Alternatively, the conductive parts 53 and 54 are biased to ensure contact with the insulating parts 68 and 69 formed between them, and the coil springs 67, 67, . . . The portions 53 and 54 are electrically connected to each conductive terminal 61, 61, . . . of the printer I/wiring board 6o. Note that 70 is a waterproof cover.

Thus, when the driving body 33 is rotated, the transmission gear 47 having a large diameter gear 48 that meshes with the spur gear portion 37 formed integrally with the driving body 33 is rotated, and when the transmission gear 47 is rotated, The rotary plate 50 is rotated, which engages the gear teeth 56 that mesh with the small diameter gear 49 of the transmission gear 47.

Next, an example of a control circuit for controlling the drive of the motor 41 and leveling the headlamp unit 1 will be described with reference to FIG.

The control circuit shown in FIG. 6 includes an operating section 71, a multi-stage switching control section 72, a motor drive circuit 73, a power source 74, and a large number of fixed contacts 66A, 66B, . . . , 66E. As described above, the rotating plate 50 is rotated clockwise and counterclockwise by the rotational force of the motor 41 being transmitted by the worm 40, the driver 33, and the transmission gear 47. Identification contacts 66A, 66B, Φ base, and 66E are mutually fixed as 1゛E in relation to one rotation plate 50, and the group of these contacts 66A, 66B, . . . , 66H and rotation plate 50 are adjusted. The relative position relationship is changed according to the position of the screw 24. On the surface of the rotating plate 50 that comes into contact with the contacts 66A, 66B, 66E, there are the two conductors 53 and 54 (the portions shown in the satin pattern in the drawing). It is formed. The conductive parts 53 and 54 are approximately 1 part of the circular conductive area.
80 ffj #l- It has a substantially semicircular shape 141 formed by removing the intervening portion, and the removed portions are used as insulating portions 68 and 69. In addition, the fixed contacts 66A, 66B, Φ, 66E are conductive parts 53 and 54
It is arranged on a rotation locus that falls within a central angle of about 180 degrees. Such fixed contacts 66A, 66B, @
- The arrangement of the pass 66E is not necessarily fixed or restricted to the above-mentioned range, or at least one of the fixed contacts 66A, 66B, ..., 66E is used.
When one contact is brought into contact with either of the two insulating parts 68 or 69, all other contacts are brought into contact with the conducting part 53 or 54.
The arrangement is such that it is in contact with the

Reference numerals 75 and 76 are connection terminals arranged on the rotation locus of the guide parts 53 and 54, and are arranged at both ends in the arrangement direction of the group of fixed contacts 66A, 66B, and 66H. The connecting terminal 75 is always kept in contact with the conductive part 53 on the - side, and the other connecting terminal 76 is always kept in contact with the conductive part 54 of the other side. Connection terminals 75 and 76 are connected to motor drive relays 77 and 7, respectively.
8 is connected. The relay 77 is a relay for forward rotation, and one connection terminal 75 is connected to 11ijJ of the relay 77 for forward rotation.
The relay 78 is a reversing relay, and the other (d-connection terminal 76 is connected to the gravitational terminal of the excitation coil of the reversing relay 78. , the other terminal of the excitation coil of each relay 77 and 78 is grounded.

79 is a movable contact of the relay 77, which is connected to the common terminal CT1 connected to the normal rotation side input terminal 80 of the motor 41, and when the relay 77 is de-energized, it is connected to the ground side terminal BT.
1 or when the relay 77 is energized, the power supply side terminal MT and 1i are contacted. Further, 81 is a movable contact of the relay 78, and the reverse input terminal 8 of the motor 41.
It is connected to the common terminal CT2 which is connected in two places,
When relay 78 is de-energized, it is connected to ground side terminal BT2.
1! l! However, when the relay 78 is energized, the noise source side terminal M T 2 is contacted. The ground terminals BT1 and Br3 are both grounded, and the power supply terminals MT and MT2 are each connected to the positive terminal 83 of the power supply 74. When the relay 77 is energized, its movable contact 79 is brought into contact with the power supply side terminal MT, and the motor 41 is rotated in the normal direction by connecting the forward input terminal 80 with the positive side terminal 83 of the power supply 74. When the relay 78 is rotated in the opposite direction and the relay 78 is energized, its movable contact 81
is contacted with the power supply side terminal MT2, and thereby the motor 4
1 is the reverse side input terminal 82 or the positive side terminal 8 of the power supply 74.
3 and rotated in the reverse direction.

When the relays 77 and 78 are de-energized, the motor 41
Both terminals 80 and 82 of are shorted.

84 is a multi-stage switching switch included in the operation unit 71;
The changeover switch 84 has a movable contact 86 and a movable contact 8 having a common terminal 85 connected to the positive terminal 83 of the power supply 74.
A large number of switching contacts 8.7 A, 87B, ..., 87E whose connection to the common terminal 85 can be switched by
The switching contacts 87A, 87B, . . . and 87E are the identification contacts 66A, 66B, . . .
6' 6 E are each connected to the same q addition sign.

As mentioned above, the rotary plate 50 is rotated as the motor 41 is rotationally driven, and the direction of rotation is 1/X in the illustrated embodiment. When the motor 41 is rotated in the normal rotation direction by being rotated in the forward rotation direction, it is rotated in the counterclockwise direction, that is, in the direction shown by the solid arrow in the figure, and the motor 41 is rotated in the reverse rotation direction by energizing the relay 78. When it is rotated in the direction, it is rotated clockwise, that is, in the direction indicated by the broken line arrow in the figure. When the motor 41 is rotated in the forward rotation direction, the headlight second 1-1 is tilted in the direction shown by the actual arrow in the figure, that is, in the downward direction, and the motor 41 is rotated in the reverse rotation direction. When the vehicle is turned on, the headlight unit l-1 is tilted in the direction indicated by the broken line arrow in the figure, that is, in the northward direction.

Therefore, the changeover contacts 87A and 87B of the changeover switch 84
, . . . , 87E and connect the movable contact 86 to it, the current from the power source 74 flows through the common terminal 85 → movable contact 86 → switching contact 87
→ The guide portion 5 of either one of the fixed contacts 66 that is in contact with the fixed contact 66 that has passed through the path of the fixed contact 66 and is further in contact with the changeover contact 87 selected by the movable contact 86
3 or 54, passes through either connection terminal 75 or 76, and flows to either relay 77 or 78.

When either one of the relays 77 or 78 is energized, its coil is excited, so that the movable contact 79 or 81 of the relay 77 or 78 is connected to the power supply side terminal M.
T or MT2 is contacted, and the motor 41 is rotated forward or reverse. When the motor 41 is driven to rotate, the adjustment screw 24 is moved separately, thereby tilting the home lighting unit 1 in two directions or in a downward direction, and rotating the rotating plate 50. Ru. When the rotary plate 50 is rotated and the insulation 81i 68 or 69 is brought into contact with the selected fixed contact 66, the fixed contact 66 is electrically conductive δ1 (contact with 53 or 54, 17
5, the movable contact 79 or 81 of the relay 77 or 78 that was excited is connected to the ground terminal BT or B10, and the terminals 80 and 82 of the motor 41 are short-circuited, so that the motor 41 has no ft1ll movement. The rotation of the rotating plate 50 is stopped, and the movement of the adjusting screw 24 is also stopped. This causes the headlamp unit 1 to stop tilting.

In addition, in the control circuit shown in FIG. 6, the fixed contact 66
If five through holes 58 are formed in the contact plate 57 and the tilting of the headlamp unit l is controlled in five stages, any one of them can be used as needed. The number of control stages can be appropriately selected within the range of the number of through holes 58 by using the number of through holes 58. For example, if there are 10 through-holes 58 for the fixed points, and Q-holes are used, to create the circuit shown in Figure 6, only 5 of them are used and the remaining 5 are left alone. That's why I keep it. Therefore,
If 10 through holes are prepared, it is possible to easily manufacture a device δ that controls the irradiation angle of the headlight in 10 steps or less depending on the vehicle to which it is applied.

Second Embodiment FIG. 7 shows a second embodiment of the vehicle headlamp device according to the present invention. The equipment 11 shown in this embodiment is different from the device 6 in the first embodiment described above in the manner in which the adjustment screw and the headlamp unit 1 are connected and the manner in which the adjustment screw is held by a moving body. These differences are based on the difference in the method of adjusting the aiming of the headlights using the adjustment screw. Incidentally, in the case where each part of the apparatus shown in FIG. 7 is the same as each part in the apparatus shown in the first embodiment,
In the embodiments, detailed explanations will be omitted by using the attached symbols.

Reference numeral 88 denotes an adjustment screw, and a threaded groove 89 is formed at the tip end protruding from the casing 15. Reference numeral 90 denotes a moving body formed in a cylindrical shape, the outer circumferential surface of which is approximately regular octagonal, and a circular large diameter portion 91 is formed at the rear end. A groove 92 is formed. Reference numeral 93 denotes an insertion hole formed through the center of the movable body 90. The intermediate portion of the adjusting screw 88 is loosely inserted into the insertion hole 93 of the movable body 90, and in this state, the adjusting screw 88 has a stopper 94.94 that contacts the front end surface and the rear end surface of the movable body 90. As a result, the adjusting screw 88 is rotatably held relative to the movable body 90 and is prevented from being removed from the movable body 90. Note that the moving body 90 is the same as the moving body 29 in the first embodiment.
Similarly, the shaft groove 92 formed in the large diameter portion 91 is screwed into the groove formed in the hole 36 for supporting the drive body 33.

As the driving body 33 rotates, it is moved integrally with the adjusting screw 88 in the axial direction of the adjusting screw 88.

95 is Oak I. The nut 95 is formed of synthetic resin into a square block shape, and a hole 96 is formed through the center of the nut 95 in the front and back directions. Furthermore, engagement grooves 97 are formed on both sides of the nut 95, and the engagement grooves 97 extend in a direction parallel to the axial direction of the hole 96. The curved surfaces are such that they are closest to each other at the center in the direction in which they extend, and are furthest apart at both ends. 98 is a headlight unit protection r<+
+ This is a retaining piece protruding from the lower part of the member, and the retaining piece 98 has an engagement notch formed so as to have a substantially gate-like shape when viewed from the front. Then, both side edges of the notch formed in the retaining piece 98 are engaged with the engagement grooves 97 of the nut 95, and the tip of the adjusting screw 88 is screwed into the hole 96 of the nut 95. As a result, the tip of the adjustment screw 88 is connected to the bottom of the headlamp unit holding part 5 via l-95. )1;

By rotating the adjustment screw 88, the headlamp unit and 2 keying adjustments can be made. That is, when the adjusting screw 88 is rotated so as to be screwed into the nut 95, the adjusting screw 88 can only move backward i(j) with respect to the movable body 90. ), the nut 95 is moved rearward along the adjustment screw 88 , and therefore the portion of the headlamp unit holding member 5 that is engaged with the nut 95 , that is, the lower part 91 (is displaced to the rear, and The headlamp unit 1 is rotated in the downward direction.Furthermore, when the adjustment screw 88 is rotated back against the screws 71 and 95, the nut 95 is moved in the nIJ direction.
Therefore, the headlamp unit 1 is rotated upward.

When the motor 41 is out of rotation, the driving body 33 is rotated S, and when the driving body 33 is rotated, the movable body 90 is moved in the +ii+ backward direction as described above. It is moved in the axial direction according to the movement of the body 90, and thereby the level link adjustment of the headlamp unit J can be performed.

Effects of the Invention As is clear from the above description, the axle li+ lighting device of the present invention has the headlamp pl, i copper direction set to 31i.
In an axle headlight device that can be changed to the body,
At one point in which a tilting member whose angle relative to the vehicle body can be changed is supported by the vehicle body or a member fixed to the vehicle body, the tip is connected to the tilting member.

The adjusting screw, the moving body, and the driving body each have a moving body that retains the adjusting screw, a driving body that moves the moving body, and a driving unit that drives one driven body, and the adjusting screw, the moving body, and the driving body are It is characterized by being arranged in the first place in the same state.

Therefore, according to the wheel headlamp device of the present invention, the adjusting screw for aiming can be used as a drive shaft for leveling 5/5, and the adjusting screw can be moved to the first turning point. The member that keeps the deer in position can function as a driving member for leveling operation, and the deer can also be used in 1. B) H4? By arranging the members that hold and move the J screw and adjustment screw on the same axis, there is a mechanism for leveling (j'') as a mechanism for aiming. At the point of adjustment, almost all of the main parts of the two machines are made common, and the structure can be made extremely small and 1141 elements.

In each of the embodiments described in iii), the tilting member for changing the irradiation angle of the headlight is the lighting unit 1 itself, or the member to be tilted according to the present invention is The lighting unit is not limited to one type, and for example, the lamp body and the reflector may be configured as separate bodies, the lamp body is fixed to the vehicle body, and the reflector is held rotatably relative to the lamp body. It is also possible to connect the tip of the adjustment screw to a part of the reflector and use this to tilt the reflector.

In addition, in the above embodiments, a motor was used as a drive source for driving the adjustment screw, and a worm mechanism was used as a means for driving the driving body, or a hydraulic cylinder may be used as the drive source in the present invention depending on the case. can. Possible means for driving the drive body in this case include connecting a rack member to the piston of the hydraulic sill, and causing the feed teeth of the rank member to mesh with the gear teeth of the drive body.

[Brief explanation of the drawing]

1 to 6 show a first embodiment of the vehicle headlamp device of the present invention, FIG. 1 is a front view showing the entire headlamp burst 15, FIG. 2 is a right side view thereof, No. 3171 is an enlarged vertical sectional view of the main part, Fig. 4 is an exploded perspective view of the main part, and Fig. 5 is ff13.
6 is a circuit diagram showing an example of a leveling drive circuit; FIG. 7 is an enlarged cross-sectional view of essential parts showing a second embodiment of the axle headlamp device of the present invention. It is a diagram. Explanation of symbols 1...Tilt H'! 3 materials (14ij lighting), 11.
...Car body, 24...J circumference adjustment screw, 29...
・Moving body, 33...Driving body, 40.41...Driving part, 88...Adjusting screw, 90...Fist moving body, 3j11 people Koito Seisakusho Co., Ltd. agent Go1゛Physician Yu Komatsu Figure 1

Claims (1)

[Claims] ``+ii'' A vehicle headlamp device in which the direction of irradiation of ablation can be changed with respect to the body 1, l In addition, the tilting member whose angle of view with respect to the car body can be changed is fixed to the frame body or the car body. At one point that is attached to the member that is connected to the tip,
(ii) an adjusting screw connected to the 1ψ moving part vane; I) a moving body that holds the adjusting screw; a driving body that moves the moving body; and a driving section that drives the driving body; The moving body and the driving body are the same! Mij illumination device for offshore octopus, which is arranged at 1lIF.