KR920001712B1 - Headlight unit for vehicle - Google Patents

Abstract

No content.

Description

Automotive headlight device

1 to 11 show a first embodiment of the vehicular headlamp apparatus of the present invention, wherein FIG. 1 is an enlarged cross-sectional view of a main part.

2 is a front view.

3 is a sectional view taken along the line III-III of FIG.

4 is a cross-sectional view taken along the line IV-IV of FIG.

5 is a cross-sectional view taken along the line V-V of FIG.

6 is an enlarged cross-sectional view of a main portion taken along the line VI-VI of FIG.

7 is an exploded perspective view of the orthogonal exchange gear unit.

8 is an enlarged rear view of the main portion of the leveling drive mechanism;

9 is an enlarged cross-sectional view taken along the line IX-IX of FIG.

10 is an enlarged perspective view showing an exploded view of the main portion of the leveling drive mechanism.

11 is a cross-sectional view showing an example of a headlamp device without a leveling drive mechanism.

12 and 13 show a second embodiment of the vehicular headlamp device of the invention, wherein FIG. 12 is a front view.

13 is a cross-sectional view taken along the line XII-XII of FIG.

FIG. 14 is a side view of a main part showing a partial cutaway of an example of a conventional headlamp device for a vehicle. FIG.

* Explanation of symbols for main parts of the drawings

1,115 headlight unit 2: headlight unit

3,117: lamp body 4,118: lens

5: light source 6,119: lighting space

7 support member (lamp housing) 21: adjustment mechanism for aiming adjustment

22: orthogonal conversion gear unit 33: output gear (worm bending)

41: input gear (drive pinion gear) 47,47A: between adjustments

53 leveling drive mechanism 69 output shaft

120: reflector

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel vehicle headlight device, and more specifically, to a vehicle headlight device having a tilting member that is tilted when adjusting the irradiation direction and a tilting means that tilts the tilting member. Differences in content, i.e., whether this tilting means installs only an aiming adjustment mechanism for initial aiming adjustment in the irradiation direction, or a leveling drive mechanism for adjusting the irradiation direction in use in addition to the aiming adjustment mechanism. The aiming adjustment mechanism can be used for any of the tilting devices of the two components described above, and the aiming adjustment mechanism can be always placed at a constant position with respect to the supporting member, and further, the supporting member for supporting the tilting device. New vehicle which let you use one kind of thing in common It relates to a headlight device.

The vehicle headlight device of the present invention is a vehicle headlight device having a tilting member that is tilted when adjusting the irradiation direction and tilting means that tilts the tilting member, and an aiming adjustment mechanism for initial aiming adjustment, that is, a front end portion is connected to the tilting member. A mechanism having a means for moving the adjustment section by hand operation so that the adjustment section and the tilting member are tilted is attached to the support member, while the other end of the adjustment is projected backward from the aiming adjustment mechanism, and the change of the load applied to the vehicle body again. A leveling drive mechanism for correcting the error in the irradiation direction by the means, i.e., a mechanism for moving the adjustment between the remote means by arranging the rear side of the adjustment mechanism for the aiming so that its output part is connected with the rear end of the adjustment. Tilting means for tilting The same aiming adjustment mechanism can always be arranged at the same position with respect to the supporting member, regardless of the difference between the structure, the one consisting of the aiming adjustment mechanism and the leveling drive mechanism, and furthermore, one type of common support member is used. It is to be used as.

The headlight for a vehicle, for example, the headlight for an automobile, is capable of adjusting the irradiation direction on one side at any time, and the tilting member which freely supports a member defining a direction of irradiation, for example, a headlight unit, a reflector, etc. on a support member. A tilting device for tilting is provided. In this case, the headlamp unit refers to one formed by arranging a reflector portion and a light source in a lighting space defined by a lens covering a lamp body and a front opening thereof.

Then, in the adjustment of the irradiation direction, so-called initial aiming adjustment, that is, the headlight is mounted on the vehicle body, and then adjustments and leveling adjustments performed before use or during inspection, that is, a change in the load applied to the vehicle body by a person or a load, etc. The irradiation direction changes every time. Initial aiming adjustment is usually performed by an adjustment mechanism by manual operation, and leveling adjustment is performed by a drive mechanism driven by remote operation.

The aiming adjustment is influenced at each time according to the change of the irradiation direction in the horizontal and vertical directions, and the adjustment mechanism is installed at two spaced apart points.

Moreover, the said leveling drive mechanism is normally provided in the adjustment point common to one of the aiming adjustment points, ie, the adjustment point which performs initial aiming adjustment of the irradiation direction in an up-down direction, Therefore, these aiming adjustment mechanisms and leveling drive mechanisms are In the conventional tilting device provided, many of these two are integrated.

Fig. 14 schematically shows an example (a) of a conventional headlamp for a vehicle having such a tilting device. In the figure, reference numeral b denotes a tilting device, reference numeral c denotes a casing fixed inside the rear portion of the lamp housing d, and reference numeral e denotes a tubular shape supported by the casing c so as to be movable in the front-rear direction. The moving body of the symbol g is an adjustment period supported by the hole of this moving body e freely and unable to move axially, and the front part g formed in the shape of the axial is freely tilted in the lamp housing d. It is screwed into the nut i supported by the supported headlight unit h, and its rear end protrudes rearward from the casing c. In the casing, a drive unit composed of a motor, a worm gear, a worm wheel, and the like, which are not shown, is provided, and the movable body e is screwed into the screw hole of the worm wheel, so that the worm wheel is rotated back and forth It is supposed to be moved to.

Then, when the adjustment section f is grasped and rotated at its rear end, the adjustment section f is screwed into or pulled out of the nut i, and thus the nut i is moved in the forward and backward directions relatively along the adjustment period f. It moves, and the headlamp unit h tilts in the substantially up-down direction by this. This is the initial aiming adjustment in the vertical direction. In addition, when the driving unit is driven, the moving body e is integrally moved in the front-rear direction with the adjustment period f to tilt the headlamp unit h. This is the leveling adjustment.

According to such a tilting device (b) in the headlight device (a), there is an advantage that the initial aiming adjustment means and the leveling driving means can be handled integrally, while the initial aiming device in the tilting device (b) is used. There was a problem that only the adjustment means could not be attached to the headlamp unit h independently, or that the lamp housing d would be dedicated to a particular headlamp apparatus provided with this tilting device b.

That is, as mentioned above, although the aiming adjustment mechanism is necessarily provided in the headlight apparatus for vehicles, the leveling drive mechanism is not necessarily installed, and the headlight apparatus with the leveling adjustment mechanism is, of course, of a special specification today. have. Advantageously, since the tilting device (b) is integrated with the aiming adjustment mechanism and the leveling drive mechanism, it is not possible to take out the aiming adjustment mechanism only from this apparatus and attach it to the headlight unit (h), and therefore, the headlamp requiring only the aiming adjustment mechanism. A separate aiming adjustment mechanism must be prepared for the device, and the tilting device (b) is arranged inside the lamp housing (d), and the attachment boss jj... Since the lamp is protruded at a specific position on the inner surface of the lamp housing d, the lamp housing d becomes an exclusive part of the headlamp device with the tilting device b, and therefore has only an aiming adjustment mechanism. The headlamp device has to be prepared with a different lamp housing.

Then, the reflecting mirror is freely arranged in the lighting space defined by the reflector movable type vehicle headlight device, that is, the lamp body and the lens covering the front opening thereof, and the irradiation direction is adjusted by tilting the reflecting mirror relative to the lamp body. In a vehicle headlight device of the type described above, a predetermined tilting device is usually attached to the inner surface of the back length of the lamp body, and the adjustment period is connected to the reflecting mirror. There is a problem, that is, the aiming means and the lamp body cannot be used in common for the tilting device having different configurations.

Accordingly, an object of the present invention is to provide a headlamp device for a vehicle for solving the above problem. Therefore, the vehicle headlight device of the present invention supports an adjustment tube having a front end portion connected to a tilting member and an adjustment mechanism for aiming having an orthogonal conversion gear unit that rotates by manual operation and moves between adjustments, such as a lamp housing or a lamp body. It attaches to a member and projects the rear end part of adjustment between the said adjustment mechanism for aiming backwards, and arrange | positions the leveling drive mechanism which has an output part connected with the rear end part of adjustment, behind the aiming adjustment mechanism.

Therefore, according to the vehicular headlight device of the present invention, the aiming adjustment mechanism for initial aiming adjustment is attached to the support member in a state where the connection with the leveling drive mechanism is detachable, and thus, one of The aiming adjustment mechanism can be used in common with other types of tilting devices, and can be arranged at a fixed position on the support member, and when a leveling drive mechanism is also required, this is simply attached to the support member from the rear side, thereby connecting with the adjustment. This makes it possible to use one type in common as the support member despite the difference in the configuration content of whether the means for tilting the tilting member is made of only the aiming adjustment mechanism or has a leveling drive mechanism in addition to the aiming adjustment mechanism. .

Next, the detail of the headlight apparatus for vehicles of this invention is demonstrated according to each Example which shows.

1 to 11 show a first embodiment of the vehicular headlamp device of the present invention. The headlamp device 1 shown in this embodiment is a headlamp device of the unit movable type. Reference numeral 2 denotes a headlamp unit, a lamp body 3 formed to form a recessed shape that is substantially opened toward the front, a lens 4 attached to the lamp body 3 so as to cover the front opening, and a lamp body. (3) has a forward-facing reflective surface 3a, the bulb 5 is supported by a bulb attachment hole 3b formed in two government portions of the reflective surface 3a, and the light emitting portion of the bulb 5 is a lamp It is located in the bulbous space 6 formed by the body 3 and the lens 4.

Reference numeral 7 is a synthetic resin lamp housing, which has a substantially recessed shape that is opened forward, and is fixed to the vehicle body 8 so as to be located behind the headlight arrangement opening of the vehicle body 8.

Points A, B, and C (see FIG. 2) are the points at which the headlight unit 2 is supported by the lamp housing 7, the point A is the pivot point, and the point B separated laterally from this point A. And point C spaced downward from the point A to adjust an interval between the headlight unit 2 and the lamp housing 7, and the headlight unit 2 is adjusted by these adjustments. It is made to tilt in the direction (the direction toward the left in FIG. 2 to the left, and the direction toward the right to the right), and the up-down direction.

The code | symbol 9 is a rotation point mechanism which comprises the said rotation point part.

Reference numeral 10 denotes a supported portion protruding rearward from the rear surface of the lamp body 3, and a metal support shaft 11 is fixed to the rear end of the supported portion, and the lower portion of the support shaft 11 11a) is integrally formed.

Reference numeral 12 is a synthetic resin receiver body attached to the lamp housing 7 so as to protrude forward, and a spherical recess 12a opened on an upper surface thereof is formed, and the support shaft 12a is provided on the spherical recess 12a. The bend 11a of 11 is rotated freely.

Then, the headlamp unit 2 has a lamp housing 7 so that the head 11a of the support shaft 11 can be tilted around the rotation center of the point (this point is the A point) supported by the receiver body 12. Is supported.

Reference numeral 13 denotes an aiming adjustment mechanism (hereinafter referred to as a first aiming adjustment mechanism) constituting the adjustment portion at the point B.

Reference numeral 14 denotes a substantially cylindrical protrusion projecting from the rear of the lamp body 3 through the rear side, and the receiver body 15 made of synthetic resin is supported at the rear end thereof. The spherical recessed part 15a opened toward the back and the groove-shaped hole 15b extended continuously forward are formed in the front end of this spherical recessed part 15a.

Reference numeral 16 denotes a gear unit, and a gear case 17 fixed to the front face of the lamp housing 7 and a first bevel freely installed in the gear case 17 in a direction in which an axial direction extends along the vertical direction. A gear 18, a second bevel gear 19 engaged with the first bevel gear 18, and an aiming adjustment shaft 20, integrally formed at the center of the second bevel gear 19; A screw hole 19a penetrated in the front and rear direction is formed in the boss, and an upper end portion of the operating section 18a fixed to the first bevel gear 18 protrudes out of the gear case. Most of the aiming adjustment shaft 20 has a screw shaft shape, and the front end portion is formed with a sphere 20a and a plate-shaped protrusion 20b protruding forward from the sphere 20a. While the intermediate portion is screwed into the screw hole 19a of the second bevel gear 19, the spherical portion 20a is freely rotated in the spherical recessed portion 15a of the receiver body 15, and the protrusion 20b is provided. Is freely engaged with the hole 15b of the receiver body 15. Therefore, the aiming adjustment shaft 20 is connected to the receiver body 15 in an unrotable state. The point B is connected to the spherical recess 15a of the receiver body 15 and the aiming adjustment shaft 20.

When the first bevel gear 18 is rotated by the operation shaft 18a, the second bevel gear 19 is rotated, and the aiming adjustment shaft screwed to the second bevel gear 19 ( Since 20) is sent in the axial direction, the receiver body 15 is moved approximately in the front-rear direction, whereby the headlamp unit 2 uses a straight line connecting the point A and the point C to the rotational central axis in the approximately left and right directions. Tilt is made so that the irradiation direction is changed to the left and right directions. That is, aiming adjustment in the left and right directions is performed.

The code | symbol 21 is the aiming adjustment mechanism (henceforth a 2nd aiming adjustment mechanism) which comprises the adjustment part of said C point.

Reference numeral 22 is an orthogonal conversion gear unit of the aiming adjustment mechanism 21.

Reference numeral 23 is a case of the gear unit 22, which is composed of the first half portion 25 and the second half portion 25 formed in approximately two divisions in the front-rear direction, and is horizontally positioned slightly above the middle portion in the height direction. The inner space 27 consists of the upper part 27a and the lower part 27b by the phosphorus intermediate wall 26, and the circular worm support hole 26a is the right half in the left-axis half of the intermediate wall 26. Circular operating shaft support holes 26b are formed in substantially the center of the surface. In addition, worm support holes 28a and 29a coaxial with the worm support hole 26b are formed in the upper wall 28 and the lower wall 29 of the case 23, and the upper surface wall 28 is again formed. An insertion hole 28b coaxially with the operation shaft support hole 26b is formed in the groove.

Reference numerals 30 and 30 denote wheel support holes formed at positions corresponding to the convenient portions on the right side of the lower space 27b among the front and rear side walls 31 and 32 of the case 23.

Reference numeral 33 is a worm wheel, a substantially cylindrical boss portion 34 and a gear portion 35 having an intermediate portion of the boss portion 34 as a center are integrally formed, and the hole of the boss portion 34 is formed. 34a) is formed in the screw hole, and the rotation is freely supported by the wheel support holes 30 and 30 formed in the casing 23 at the main end of the boss portion 34.

Reference numeral 36 denotes a worm body. The worm gear 37 and the pinion gear 38 coaxially formed with each other are integrally formed, and the shaft 40 is press-fitted into the hole 39 penetrated through the central portion thereof. In this worm body 36, the worm gear 37 is located in the lower space 27b, the pinion gear 38 is located in the upper space 27a, and the shaft 40 protrudes from the worm body 36. Both ends are freely fitted in the worm support holes 28a, 29a formed in the upper wall 28 and the lower wall 29, and are further provided between the worm gear 37 and the pinion gear 38. The rotation of the intermediate portion 36a is freely supported in the worm support hole 26a of the intermediate wall 26 so that the rotation is freely accommodated in the case 23, and the worm gear 37 is connected to the worm wheel 33. Interlocked.

Reference numeral 41 denotes a drive pinion gear, and a lower end portion of the operation shaft 42 is press-fitted into a hole 41a penetrating through the center thereof in the axial direction, and the operation shaft 42 is a drive pinion gear 41. The operation shaft support hole formed in the intermediate wall 26 has a portion immediately above the insertion hole 28b formed in the upper wall 28 of the case 23 and a portion projecting downward from the pinion gear 41. The rotation is freely supported separately at 26b, whereby the drive pinion gear 41 is accommodated in the upper space 27a in engagement with the pinion gear 38 of the worm body 36.

Reference numeral 43 is a rod insertion hole formed at a position opposite to the right end of the lower end of the headlamp unit 2 of the rear portion 7a of the lamp housing 7.

The orthogonal conversion gear unit 22 is fixed to the front surface of the rear portion 7a of the lamp housing 7 with its worm wheel 33 coaxially with the rod insertion hole 43. The attaching pieces 44, 44, 44 protruding from the case 23 are bolts 45, 45. And nuts 46 and 46. It is made by being fixed to the lamp housing 7 by (only 1 type is shown in figure at all).

Reference numeral 47 is a period between adjustments, and the portion 48 between the approximately intermediate position in the axial direction and the position biased to the front end becomes the screw shaft portion, and the rear portion 49 of the screw shaft portion 48 The cross-sectional shape orthogonal to an axial direction becomes a connection part which is substantially elliptical, and the sphere 50 is integrally formed in the front end.

Reference numeral 51 denotes a bracket which is integrally protruded from the position at the right end of the lower end of the rear surface of the lamp body 3, and the receiver body 52 made of synthetic resin is attached to the attachment hole 51a formed in the bracket 51. It is supported, and the receiver body 52 is formed with the substantially spherical recessed part 52a which opened toward the back surface.

In the adjusting section 47, the screw shaft portion 48 is screwed into the screw hole 34a of the worm wheel 33, and the sphere 50 is rotated to the recessed portion 52a of the receiver body 52. This free fitting fits and protrudes backward through the rod insertion hole 43 formed in most of the lamp housings 7 of the connecting portion 49.

The point C is connected between the receiver body 52 and the sphere 50 between the adjustments 47. In addition, initial aiming adjustment by the 2nd aiming adjustment mechanism 21 is mentioned later.

Reference numeral 53 is a leveling drive mechanism. Reference numeral 54 is a casing, and the first half 55 and the second half 56 made of synthetic resin are integrally coupled to each other.

The first half 55 has an inverted U-shape, the lower half of which is approximately horizontal in the transverse direction when viewed from the front and rear, and the width of the upper half becomes wider as the upper half goes to the lower end. Have Reference numeral 57 is a front wall of the first half 55, and the lower end thereof bulges forward in the shape of an arc, and the cylindrical portion 58 having a substantially cylindrical shape is slightly forwardly moved upward from the center portion thereof. The front wall 57 is opened on the rear side of the rear end of the hole 58a of the tubular portion 58. The rear half 57 has an open front face and the shape seen in the front-rear direction is approximately the same as that of the first half 55, and its inner length is several times larger than the inner length of the first half 55, and the rear wall 59 The upper third side portion 59a (hereinafter referred to as 'top') is located slightly ahead of the remainder (hereinafter referred to as 'bottom'), and is substantially in the left and right direction of one end of the upper portion 59a. The central portion protrudes slightly to the rear, and a bearing recess 60 is formed on the front surface of the protruding portion from the front, and the front end portion 60a of the bearing recess 60 is slightly at the remaining portion. It is formed in a large diameter.

Reference numeral 61 (see Fig. 9) denotes a support projection protruding forward from a position near the left obliquely downward from the bearing concave portion 60 of the lower portion of the rear wall 59. It consists of the rear part 62 and the whole diameter 63 of the small diameter, and the support hole 64 opened in the front-end surface is formed, and the whole 63 becomes C-shaped more from the front by cutting off a part of the main wall. It is being formed.

Then, the first half 55 and the second half 56 are opposed to each other with the waterproof member 65 interposed therebetween, and each of the four engagement protrusions 66, 66, ..., 66, 66, protruding from the outer circumferential surface thereof. 66,... Are integrally joined by being fixed to each other by screws 67, 67,... And nuts 68, 68...

Reference numeral 69 is an output shaft connected to the adjustment section 47 of the second aiming adjustment mechanism 21.

The output shaft 69 is a gear 70 provided in a substantially cylindrical shape, a wheel engagement portion 71 continuous to the rear end of the portion 70 and a gear protruding from the rear surface of the engagement portion 71. The engagement portion 72 and the rear portion 73 protruding from the rear surface of the gear engagement portion 72 are integrally formed by a metal material, and the entirety 70 is a cylindrical portion formed in the first half portion 55. It has an outer diameter substantially the same as the diameter of the hole 58a of the 58, and is slightly longer than the length of the hole 58a, and the wheel engagement portion 71 is formed in a board shape that is almost an elliptical shape in the front-rear direction. The gear engaging portion 72 is formed almost in a block shape, and the rear portion 78 is formed in a circumferential shape having an outer diameter of approximately the first half of the entirety 70, and is located near the front end of the entirety 70. An annular groove (ring) is formed.

Reference numeral 74 is a connecting hole formed in the output shaft 69 such that its front end face is hollow, and is formed in the same shape as the connecting part 49 of the adjustment section 47, that is, the cross section is almost elliptical, and the rear end thereof is It extends to the vicinity of the intermediate part of the gear engagement part 72 corresponding.

The output shaft 69 is connected to the cylindrical portion 58 of the first half portion 55 by rotating rotation, and the rear end portion of the rear portion 73 has a bearing recessed portion formed at the second half portion 56. It is inserted in the rotational force 60 by this, and it is supported by the casing 54 by rotation itself, and the front end surface is located in substantially the same plane as the front hole opening surface of the cylindrical part 58. As shown in FIG.

The O-shaped ring 75 and two backing rings 76 and 76 positioned on both front and rear sides of the O-shaped ring 75 are fitted into the grooves 70a formed in the entirety 70, and the cylindrical portion 58 ) And the gap between the whole of the output shaft 19 is kept closed by the O-shaped ring 75 with respect to the internal space of the casing 54.

In addition, as described above, the bearing recess 60 supported by the rear portion of the output shaft 69 has a larger diameter than the rest of the front end portion 60a. The edge of the portion does not come into contact with the output shaft 69, and the output shaft 69 is smoothly rotated.

Reference numeral 77 is a motor and is disposed at the lower end in the casing 54 in the direction in which the axial direction having an elliptical shape in the axial direction extends along the left and right directions, and the front wall 57 and the rear of the casing 54. The position is fixed with respect to the casing 54 by the motor support pieces 78 and 78 'protruding inwardly from the surface wall 59, and the pinion gear 80 is fixed to the rotating shaft 79. It is.

Reference numeral 81 is a worm body, and a substantially cylindrical worm gear 82 and a transmission gear 83 having a larger diameter than the worm gear 82 are integrally formed by synthetic resin. Reference numeral 84 is a support shaft, and is supported by the worm support pieces 85, 85, 85 and the like formed on the first half portion 55, and the worm body 81 has a transmission gear 83 whose pinion gear ( It is supported by the said support shaft 84 by rotation restraint in the state which meshed with 80).

Reference numeral 86 denotes a worm wheel, a circular hole 86a is formed at the center thereof, and a fitting protrusion 87 is formed to cover the hole 86a through which the hole is inserted. The inner circumferential surface of the protrusion 87 is formed to be almost elliptical when viewed from the rear.

The worm wheel 86 has the rear end portion of the entirety 70 of the output shaft 69 in the hole 86a through which the worm wheel 86 is inserted, and the output shaft 69 is attached to the engagement protrusion 87. Of the wheel engaging portion 71 is fitted in such a manner that the wheel engaging portion 71 is integrally fitted with the output shaft 69 so as to rotate integrally therewith, and is engaged with the worm gear 82.

Therefore, when the motor 77 rotates, the rotation is transmitted to the worm wheel 86 through the pinion gear 80, the transmission gear 83 of the worm body 81, and the worm gear 82, and the worm wheel The 86 is rotated, and the output shaft 69 is rotated at the same time.

Reference numeral 88 is a detector for detecting the position of the adjustment section 47, and includes a circuit board, a sensor, and a means for rotating the rotation part of the sensor.

Numeral 89 denotes a circuit board, and a plurality of terminals arranged in a substantially annular (ring-shaped) position surrounding a hole 90 through which a hole 90 is formed through a central portion of the upper portion thereof. 91,91, ... are formed by printing. The circuit board 89 is fixed in the rear half 56 of the casing 54 so that the rear portion 73 of the output shaft 69 is inserted into the hole 90 by rotation.

Reference numeral 92 denotes a thick cylindrical columnar contact retaining plate, and a hole 93 is formed through the center thereof, and the contact retaining plate 92 is relatively small in the thick direction. ) Is arranged at an almost annular position surrounding the insertion hole 93.

Reference numeral 95 is a sensor gear, and a substantially disc-shaped main part 96 and an annular gear 97 protruding from the outer edge of the main part 96 toward the rear to form a sawtooth on the outer circumferential surface are integrally formed. In addition, the hole 96a is formed in the main part 96 through the center thereof, and is formed at the position surrounding the hole 96a through which two conductors 98, 98 'having a substantially semicircular arc are inserted into the rear surface. It is becoming.

And these sensor gear 95 and the contact holding plate 92 are arranged in this order from the front, and the state in which the gear 97 of the sensor gear 95 is fitted to the contact holding plate 92 to the outside is placed. While the rear portion 73 of the output shaft 69 is inserted into the through holes 96a and 93 through the respective holes, the contact retaining plate 92 stops rotating relative to the circuit board 89. Each of the contact holding holes 94, 94, ... of the contact holding plate 92 has spherical contacts 99, 99, ..., and coil springs 100, 100, ..., and the coil springs 100, 100,... ) Contacts 99, 99, ... are elastically bonded to terminals 91, 91, ... of the circuit board 89, and contacts 99, 99, ... are connected by coil springs 100, 100, ... It is electrically connected to the terminals 91, 91, ... of the board | substrate 89, and is elastically joined to the annular part in which the conductor 98,98 'of the back part of the main part 96 of the sensor gear 95 is located.

Thus, the contactor plate 92, the sensor gear 95, the contacts 99, 99, ..., coil springs (100, 100, ...) and the terminals (91, 91, ...) of the circuit board 89, etc. 101 is configured.

Reference numeral 102 is an intermediate gear, and forms a substantially spur gear shape, a slightly larger rectangular hole 102a is formed in the center portion, and the gear engaging portion 72 of the output shaft 69 is formed in the hole 102a. The inner shaft is supported by the output shaft 69 so as to rotate integrally therewith, and is located between the worm wheel 86 and the sensor gear 95.

Reference numeral 103 denotes a transmission gear, and the gear 104 and the small gear 105 each having a spur gear shape are integrally formed, and a support hole 106 is formed in the center thereof. Reference numeral 107 denotes a support shaft, and a large diameter head 108 is formed at one end thereof, and protrusions 107a and 107a extending along the axial direction at a portion proximate the other end thereof are formed by press working. It is formed, and most of it except the front end part is press-fitted into the support hole 64 of the said support protrusion 61 formed in the latter half part 56. As shown in FIG. And since the protrusions 107a and 107a are made to penetrate into the inner peripheral surface of the said support hole 64, the gear support shaft 107 is reliably supported by the support protrusion 61. As shown in FIG. And the transmission gear 103 is supported by the front support part of the gear support shaft 107 in the support hole 106 by rotation, and is supported by the gear support shaft 107 by rotation, and the air gear 104 is the said intermediate | middle. The gear 102 is engaged, and the small gear 105 is engaged with the gear 97 of the sensor gear 95.

Therefore, when the output shaft 69 rotates, the intermediate gear 102 rotates to rotate the transmission gear 103 integrally therewith, which causes the transmission gear 103 to rotate the sensor gear 95.

Thus, when the sensor gear 95 rotates, the relative position with respect to the contacts 99, 99,... Of the conductors 98, 98 ′ supported by the sensor gear 95 changes.

The contacts 99, 99, ... are divided into two groups, a group on the first polar side and a group on the second polar side, and among these contacts, two electrode contacts 99a, 99b are in contact with each other. 91a and 91b are connected to each of the two input terminals having different polarities of the motor 77, and the other contacts are connected to the switchable contacts of the two rotary switches interlocked with each other provided in the remote control unit (not shown). The rotary switch is connected to a power supply battery, and any / group to-be-switched contact in this rotary switch is selected, whereby the selected / join-to-switched contact and two contacts 99 and 99 connected thereto are selected. The circuits of the conductors 98, 8 ', the motor 77, and the power supply are closed, and the motor 77 is electrostatically or inverted.

When the motor 77 rotates, the worm wheel 86 rotates integrally with the output shaft 69. At the same time, the sensor gear 95 rotates, and the sensor gear 95 rotates by a predetermined amount. The rotation of the motor 77 stops even when the conductors 98, 98 'are separated from the selected contacts 99, 99 and the above circuit is opened. Therefore, the rotation amount and rotation direction of the motor 77 are defined by the switched contact selected by the rotary switch.

And the control system of the control mechanism provided with such a detection part 88 is substantially the same as the control system of the control structure shown by Unexamined-Japanese-Patent No. 59-209932.

Reference numerals 109, 109, and 109 denote attachment pieces protruding from the upper end surface of the casing 54 and the middle portions of the left and right both sides, and holes 109a, 109a, and 109a through which screws are inserted are formed.

The leveling drive mechanism 53 is a hole 109a which is screwed into the attachment pieces 109, 109, 109 in a state where the connecting portion 49 of the adjustment section 47 is inserted into the connection hole 74 of the output shaft 69. The screws 110, 110, and 110 through the backs 109a and 109a from the rear are screwed into the screw holes 111a, 111a and 111a of the bosses 111, 111 and 111 protruding rearward from the rear portion 7a of the lamp housing 7. It is fixed to the housing 7.

Thus, the leveling drive mechanism 53 is disposed behind the second aiming adjustment mechanism 21, so that the connecting portion 49 and the output shaft 69 of the adjustment period 47 of the aiming adjustment mechanism 21 are relatively. Sliding in the axial direction is connected to the movement material, and also impossible to rotate.

Therefore, when performing the initial aiming of the up-down direction, the said operation shaft 42 of the 2nd aiming adjustment mechanism 21 is rotated. Then, the rotation of the operation shaft 42 is conducted to the worm wheel 33 via the drive pinion gear 41-worm body 36, and the worm wheel 33 is rotated. The worm wheel 33 is moved in the axial direction by the front and rear side walls 31 and 32 of the case 23 in which the worm wheel 33 is accommodated, and the worm wheel 33 is screwed to the worm wheel 33. The worm wheel 33 is prevented from rotating by being engaged with the worm gear 82 and the worm wheel 86 integral with the output shaft 69 of the leveling drive mechanism 53 into which the connecting portion 49 is inserted. This rotation causes the adjustment section 47 to be sent in the front-rear direction, so that the distance between the headlamp unit 2 and the lamp housing 7 in the second aiming adjustment mechanism 21 changes. The headlight unit 2 tilts a straight line connecting the rotational motion point A and the adjustment point B by the first aiming adjustment mechanism 13 as the rotational motion central axis, whereby the irradiation direction This is adjusted in the vertical direction.

Leveling adjustment is performed by the rotation of the motor 77. That is, when the motor 77 rotates, the output shaft 69 rotates as mentioned above, and the adjustment period 47 rotates. In this case, since the worm wheel 33 of the adjustment mechanism 21 for aiming which the adjustment period 47 is screwing is engaged with the worm body 36, rotation is prevented, and the adjustment period 47 is the said worm wheel 33. The screw head 34A is screwed or repetitively moved in the front-rear direction, whereby the headlamp unit 2 is tilted in the vertical direction.

In addition, the movement direction and the movement amount of the adjustment period 47 are controlled by the sensor 101. That is, the sensor 101 operates as described above by the remote control unit (not shown). When the sensor 101 is reduced in the forward and backward movement direction of the adjustment period 47, the rotation direction is defined by the motor 77, and when the movement amount is reduced. The amount of rotation is defined by the motor 77.

11 shows an example 112 of an automotive headlight device that does not require a leveling adjustment function. The headlight device 112 differs from the headlight device 1 described above by the leveling drive mechanism 53. It is only that 47A of adjustment points are not attached, and they are connected so that rotation is impossible with the receiver body 52A of the headlamp unit 2.

That is, the adjustment period 47A is the adjustment period of the second aiming adjustment mechanism 21, and most of them have the same structure as the adjustment period 47, except that the rectangular plate-shaped protrusions 113 from the front end of the sphere 50. ) Is different from the protruding point. Reference numeral 52A denotes a receiver body supported by the headlamp unit 2, which also has a structure substantially the same as that of the receiver body 52, except that the recess 52a and the front end face have a groove shape. It differs in that the hole 114 is formed. The projection 113 formed at the front end of the adjustment section 47a is engaged with the hole 114 of the receiver body 52A. Therefore, since the adjustment period 47A is connected to the receiver body 52A without rotation, when the operation shaft 42 is rotated, the worm wheel 33 sends the adjustment period 47A in the axial direction. The headlight unit 2 is tilted and moved.

As apparent from the comparison between the headlight device 112 and the headlight device 1 described above, the lamp housing 7 is structured intact without any change thereto, and the adjustment mechanism 21 for aiming is adjusted between adjustments. Aside from replacing between other adjustments, the original structure can be commonly used in other types of headlight devices, each of which does not require a leveling adjustment mechanism.

12 and 13 show a second embodiment of the vehicular headlamp device of the present invention. The automotive headlight device 115 shown in this embodiment is a member of the so-called reflector movable type that adjusts the irradiation direction as a member for tilting the reflector, and differs from the headlamp device 1 only in this respect. In the drawings, only the main parts are shown, and the description is made only for the difference points, and for the parts not having the same function or the parts having the same function, the same reference numerals are given to the same parts in the first embodiment in each part of the drawings. The description is omitted by attaching.

Reference numeral 116 denotes a headlamp unit, a lamp body 117 made of a synthetic resin and whose front surface is opened, a lens 118 fixed to the lamp body 117 by covering the front opening, and these lamp bodies ( 117 and a reflector 120 disposed in the light bulb space 119 defined as the lens 118, a light bulb 121 supported by a diameter tip of the reflector 120, and the like, and a lamp body 117. It is fixed to the lamp housing 7 by the attachment means not shown.

The reflector 120 is supported by the lamp body 117 at three points A, B, and C shown in FIG. 11, and A point, which is one of these three points A, B, and C, is a rotational motion point portion. This rotational movement point portion is constituted by, for example, a ball joint type support means. In addition, the other two support points B and C are adjustment parts which adjust the space | interval between the reflector 120 and the lamp body 117, Among these, the adjustment part of B point | piece which fell to the left side from the rotation movement support part A point is, for example, It is comprised by the same adjustment mechanism as the 1st aiming adjustment mechanism 13 shown by 1st Example.

In addition, at the point C, the adjustment portion is constituted by the second aiming adjustment mechanism 21 and the leveling drive mechanism 53. In this embodiment, the second aiming adjustment mechanism 21 is a lamp body. It is fixed to the inside of the back wall of 117, the connection part 49 of the adjustment period 47 protrudes rearward through the hole 122a formed in the said back wall 122, and the leveling drive mechanism 53 is a said ship The sphere 50 of the front end portion of the adjustment section 47 is rotated to the recess 124a of the receiver body 124 attached to the face wall 122 and supported by the bracket 123 protruding from the reflecting mirror 120. The upper end of the operation part 42 protrudes upward from the upper wall of the lamp body 117.

And when the operation member of the aiming adjustment mechanism is operated in point B, the reflecting mirror 120 will incline in the substantially left-right direction, moving the straight line which connects A point and C point to a rotational movement center axis, and will be moved between adjustments. ) Is rotated or when the motor 77 is rotated, a straight line connecting the point A and the point B is inclined in the left and right direction as the central axis of rotational movement. In this way, the irradiation direction is changed.

As described above, as is apparent from the above description, the vehicle headlight device of the present invention is a vehicle headlight device in which a tilting member that tilts when changing the irradiation direction is tilted on a support member and supported by a moving material, wherein the front end portion is connected to the tilting member; An aiming adjustment mechanism having an orthogonal conversion gear unit having an output gear for rotating the adjustment by rotating and an input gear engaged with the output gear is fixed to the support member, and the rear end of the adjustment protrudes backward from the orthogonal conversion gear unit. And a leveling drive function in which the output part is slid with the rear end between the adjustments, and also incapable of rotation, is arranged at the rear of the orthogonal conversion gear unit.

Therefore, according to the vehicular headlight device of the present invention, the aiming adjustment mechanism for performing the initial aiming adjustment is fixed by attaching to the support member in the state of attaching and detaching the leveling drive mechanism and fixing it, regardless of the presence or absence of the leveling drive mechanism. In addition, one aiming adjustment mechanism can be commonly used for other kinds of tilting devices, and a support member can be placed at a predetermined position. The connection between the adjustments can be made by simply doing so, despite the difference in the configuration content of whether the means for tilting the tilting member is composed of only the adjustment mechanism for aiming or has a leveling drive mechanism in addition to the adjustment mechanism for aiming. One kind of thing can be used in common The.

In addition, according to the vehicular headlight apparatus of the present invention, despite the difference in the configuration of the tilting means for tilting the tilting member, one kind of supporting member can be used in common, thereby reducing the type of parts and the parts management. I can do it, and the cost is low.

In the first embodiment in which the present invention is applied to a vehicle headlight device of a reflector movable type, the lamp body serves as a support member, and the lamp body is fixed by attaching an aiming adjustment mechanism and a leveling drive mechanism to the lamp body. In the rolling device, an aiming adjustment mechanism may be attached to the lamp body to be fixed, and a leveling drive mechanism may be attached to the lamp housing to be fixed.

In each of the above embodiments, the gear configuration of the orthogonal conversion gear unit is only one example, and may be another one such as two level gears, a worm gear and a worm wheel.

In addition, in the present invention, the output portion of the leveling drive mechanism is not limited to the same as the output shaft shown in the embodiment, and any adjustment may be made as long as the sliding end and the sliding movement can be freely connected to the rear end. .

Claims (3)

In the headlamp apparatus for a vehicle in which the tilting member is tilted to the support member 7 while the tilting member is tilted when the irradiation direction is changed, an output gear for rotating the front end portion with the adjusting section 47 connected to the tilting member to move the adjusting section 47 ( 33 and an adjustment mechanism 21 for aiming having an orthogonal conversion gear unit 22 having an input gear 41 engaged with the output gear 33 is attached to the support member, and the rear end of the adjustment interval 47 is orthogonal. A leveling drive mechanism 53 protruding rearward from the conversion gear unit 22, the output portion of which is freely and rotatably connected to the rear end of the adjustment section 47, is disposed at the rear of the orthogonal conversion gear unit 22. Vehicle headlight device, characterized in that. 2. The lamp body (3, 117) according to claim 1, wherein the ramp body (3, 117) has recessed portions opened on the front surface thereof, the lenses (4, 118) attached to the lamp body (3, 117) to cover the entire surface thereof, and the lamp body (3, 117). And a headlight unit (2,116) consisting of a light source disposed in a light bulb space (6,119) defined by a lens (4,118), wherein the support member is a lamp housing (7) fixed to a vehicle body. 2. The bulbous space (6, 119) according to claim 1, wherein the tilting member is defined by a lamp body fixed to the vehicle body and having a recessed opening at the front surface and a lens (4,118) attached to the lamp body (3,117) to cover the front surface. And a reflector (120) disposed in the array to support the light source, and the supporting member is the lamp body (3,117).

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