JPH01260703A - Head lamp device - Google Patents

Abstract

PURPOSE:To contrive to improve the assembly workability of a space regulating section equipped with a manual regulating section and a driving section by letting the connecting hole of an operating shaft be outwardly engaged with the rear end section of a regulating rod projected out of the back surface of a lamp housing, and thereby letting a presser member allow the flange of the operating shaft to be rotatably supported by the lamp housing. CONSTITUTION:A reflecting mirror 3 is supported by one rotating fulcrum section 4 and two space regulating sections 10 and 41 onto a lamp housing 1. One of the space regulating section is composed of a regulating rod 33 the front section of which is connected with the reflecting mirror 3 wherein the rear end section of the rod is projected out of the back surface of the lamp housing 1, a driving section 49 moving the regulating rod 33 longitudinally, which is arranged within the lamp housing 1 in such a way as to enclose the regulating rod 33, and of a manual regulating section 42 which is provided for the back surface of the lamp housing 1 so as to let the regulating rod 33 be manually rotated. The manual regulating section 42 is composed of an operating shaft 11 wherein a connecting hole 15 in an out-of- circle form opened at the front end is slidably engaged with the rear end of the regulating rod 33, a flange 14 formed at the intermediate section of the operating shaft 11, and of a presser member 26 rotatably supporting the flange 14 onto the back surface of the lamp housing. This constitution thereby improves assembly workability.

Description

[Detailed description of the invention] The headlamp device of the present invention will be explained according to the following items.

A. Industrial field of application B3 Overview of the invention C1 Prior art R1 Problems to be solved by the invention [Figures 12 and 13
[Figure] E1 Means for solving the problem F, Example [Figures 1 to 11] F-1, First embodiment [Figures 1 to 7] a, Lamp housing, lens, reflection Mirror [Figs. 1 to 7] b0 rotation fulcrum part [Figs. 2 and 4] C0 interval adjustment part [Figs. 2 and 4 to 7] d, another interval adjustment part e, Operation F-2, Second Embodiment [FIGS. 8 to 11] G1 Effects of the Invention (A, Industrial Application Field) The present invention relates to a novel headlamp device. Specifically, a reflecting mirror supporting a light source is disposed within a lamp space defined by a lamp housing having a concave portion opening at the front and a lens attached to the lamp housing so as to cover the opening. It is supported by the lamp housing by one rotation fulcrum part and two interval adjustment parts, and one of the interval adjustment parts is a rotatable member whose front end is connected to the reflector and whose rear end protrudes from the rear surface of the lamp housing. A headlight consisting of an adjustment rod, a drive section arranged in the lamp housing so as to surround the adjustment rod and move the adjustment rod in the front-back direction, and a manual adjustment section provided on the rear surface of the lamp housing for manually rotating the adjustment rod. An object of the present invention is to provide a novel headlamp device in which ease of assembly of a distance adjustment section including a drive section and a manual adjustment section is improved.

(B. Summary of the Invention) The headlamp device of the present invention includes the following features in the headlamp device as described above:
an operating shaft in which a non-circular connecting hole with a manual adjustment portion opened at the front end is slidably coupled to the rear end of the adjustment rod; a flange formed in an intermediate portion of the operating shaft; and a flange that is rotatable. and a presser member supported on the rear surface of the lamp housing, so that the manual adjustment section can be assembled after the adjustment wood and the drive section are assembled to the lamp housing. This improves the ease of assembly of the spacing adjustment section.

(C, Prior Art) A reflecting mirror supporting a light source is disposed within a lamp space defined by a lamp housing having a concave portion opening at the front and a lens attached to the lamp housing so as to cover the opening, The reflector was supported by the lamp housing by one rotation fulcrum and two interval adjustment parts, and one of the interval adjustment parts had its front end connected to the reflector and its rear end protruding from the rear surface of the lamp housing. It consists of a rotatable adjustment rod, a drive section that is arranged in the lamp housing to surround the adjustment rod and moves the adjustment rod in the front and back direction, and a manual adjustment section that is provided on the rear surface of the lamp housing and that manually rotates the adjustment rod. There is a headlight device consisting of:

In such a headlight device, the manual adjustment section performs aiming adjustment, that is, after the headlight device is assembled to the vehicle body, the irradiation direction is adjusted before use, and the drive section performs leveling adjustment, that is, during use. Adjustments are made to correct deviations in the irradiation direction due to changes in the load.

As an example of the above-mentioned headlight device, for example,
There is one shown in No.-99703.

(D. Problems to be Solved by the Invention) [Figures 12 and 13] By the way, in the headlight device shown in the above-mentioned Utility Model Application Publication No. 60-99703, in addition to the manual adjustment part, There was a problem in that the space adjustment section provided with the drive section was not easy to assemble.

That is, as shown in FIGS. 12 and 13, the manual adjustment section of the headlamp device is connected to the flange (14
) into the insertion hole (17) of the operation shaft mounting part (16) provided in the lamp housing (1), and then insert the part of the operation shaft (11) that protrudes into the lamp housing (1). A stop washer (19) is engaged with an annular groove (15) formed in the lamp housing, thereby rotatably supporting the operating shaft (11) on the lamp housing (1).

In this way, in the conventional headlamp device described above, in order to rotatably support the operating shaft (11) of the manual adjustment section on the lamp housing (1), it is necessary to Since this work is necessary, first support the operation shaft (11) on the lamp housing (1), and then attach the rear end sliding shaft part (23) of the connecting rod (adjustment rod) (22) to the operation shaft. It is necessary to take the procedure of installing the driving part in the lamp housing (1) while inserting it into the sliding hole (13) of (11), which poses a problem of poor assembly workability.

(E. Means for Solving the Problems) In view of the above-mentioned problems, the present invention provides a method in which the manual adjustment section is installed on the rear surface of the lamp housing after the reflector, adjustment rod, and drive section are assembled into the lamp housing. This was done in an attempt to improve the assembly workability by making the manual adjustment part open at the front end of the operating shaft, in which a non-circular connecting hole with a manual adjustment part opened at the front end is slidably connected to the rear end of the adjustment rod. The lamp housing includes a flange formed at the intermediate portion of the operating shaft, and a holding member rotatably supporting the flange on the rear surface of the lamp housing.

Therefore, in the headlamp device of the present invention, after the drive unit and the adjustment rod are installed in the lamp housing, the connection hole of the operating shaft is fitted onto the rear end of the adjustment rod protruding from the rear surface of the lamp housing, and then It is only necessary to rotatably support the flange of the operating shaft on the lamp housing using the holding member, and the workability of assembling the distance adjusting section including the manual adjusting section and the driving section is significantly improved.

(F. Embodiments) [The details of the headlamp device of the present invention will be explained in accordance with the illustrated embodiments below in FIGS. 1 to 11.

(F-1, First Embodiment) [Figs. 1 to 7] Figs. 1 to 7 show a first embodiment of the headlamp device of the present invention.

(a, Lamp Housing, Lens, Reflector) [Figures 1 to 7] Reference numeral 1 denotes a lamp housing made of synthetic resin, and its front side is open and its rear side is substantially closed. A lens 2 is attached to the front part of the lamp housing 1 so as to cover the opening thereof. And this lamp housing 1 and lens 2
A reflecting mirror 3 is supported in a space formed by the lamp housing 1 so as to be tiltable relative to the lamp housing 1.

The reflecting mirror 3 is supported by the lamp housing 1 at three points, one of which is a rotation fulcrum, and the other two support parts are space adjustment parts.

(b, Rotation fulcrum part) [FIGS. 2 and 4] The rotation fulcrum part 4 is formed as follows.

Reference numeral 5 denotes a shaft whose base end is embedded in the lamp housing 1, and a sphere 6 is integrally formed at the tip of the shaft 5. Reference numeral 7 denotes a bracket fixed to the rear surface of the reflecting mirror 3, and a synthetic resin receiver 8 is attached to the rear end of the bracket 7. The receiver 8 has a spherical recess 9 that is open on the rear surface, and the spherical body 6 is fitted into the spherical recess 9, and a ball joint-shaped rotation fulcrum 4 is formed therein.

(c. Spacing Adjustment Unit) [FIGS. 2, 4 to 7] Next, the spacing adjustment unit 10 provided at a position laterally away from the rotation fulcrum 4 will be described. This interval adjustment section 10
is an adjustment section for adjusting the direction of the reflecting mirror 3, that is, the irradiation angle in the left-right direction.

Reference numeral 11 denotes an operating shaft, which is rotatably supported by the lamp housing 1.

The operating shaft 11 includes a shaft portion 12 made of synthetic resin and the shaft portion 1.
2 and a metal bolt 13 fixed to the rear end.

The nine-shaft portion 12 has a substantially cylindrical shape, and has a circular flange 14 integrally protruding from a position near the front end. Further, a connecting hole 15 that is open to the front end surface is formed at the front end of the shaft portion 12, and the cross-sectional shape of the connecting hole 15 is square. Furthermore, an embedding hole 16 is formed in the rear end of the shaft portion 12 and is open to the rear end surface.

The bolt 13 is integrally formed with a head 17, an embedded shaft 18 protruding forward from the head 17, and a flange 19 formed between the head 17 and the embedded shaft 18. Included shaft 1
The outer peripheral surface of No. 8 is knurled 20.20. The embedded shaft 18 has an outer diameter larger than the inner diameter of the embedded hole 16 of the shaft portion 12, and is press-fitted into the embedded hole 16 so as not to be subjected to ultrasonic vibration, for example.
The shaft portion 12 and the bolt 13 are integrated.

Reference numeral 21 denotes an insertion hole formed in the rear wall 22 of the lamp housing 1, and 23 denotes a surrounding wall protruding from the rear surface of the rear wall 22 so as to surround the insertion hole 21 at a distance from the rear wall.

Reference numeral 24.24 denotes a mounting boss portion that projects from a position on both sides of the surrounding wall 23 on the rear surface of the rear wall 22, and has a screw hole 25.25 opened at the rear end surface.

26 is a holding member, which is made by press-molding a metal plate;
The mounting plate 27 and a presser ring 29 protruding forward from the edge of an insertion hole 28 formed in the mounting plate 27 are integrally formed, and an annular presser edge extends inward from the front end of the presser ring 29. 30 are integrally formed.

Reference numeral 31 denotes an annular gasket, which is fitted into the surrounding wall 23 formed on the rear surface of the lamp housing 1.

The front end of the shaft portion 12 of the operating shaft 11 is inserted into the gasket 31 and the insertion hole 21 of the rear wall 22 of the lamp housing 1, and the front surface of the flange 14 is brought into contact with the rear surface of the surrounding wall 23. Then, the presser ring 29 of the presser member 26 is fitted onto the rear part of the operating shaft 11 from the flange 14, and with its presser edge 30 in contact with the rear surface of the flange 14 of the operating shaft 11, the mounting hole 27a of the mounting plate 27 is , 27a is inserted into the screw hole 25.2 of the mounting boss portion 24.24.
5 is screwed on.

As described above, the operating shaft 11 is rotatably supported by the lamp housing 1.

Reference numeral 33 is an adjustment wood that connects the lamp housing 1 and the reflecting mirror 3, and a sliding shaft portion 34 at the rear half and a screw shaft portion 35 at the middle portion are integrally formed. The sliding shaft portion 34 has a non-circular (quadrilateral in the embodiment) cross-sectional shape that matches the cross-sectional shape of the connecting hole 15 of the operating shaft 11, and can freely slide into the connecting hole 15 of the operating shaft 11. It is fitted. A width groove is formed in the helical shaft portion 35 . Also, adjustment rod 3
A sphere 36 is integrally formed at the front end of 3.

37 is a nut body fixed to the inner surface of the lamp housing 1, and the screw shaft portion 3 of the adjustment rod 33 is attached to this nut body 37.
5 are screwed together. Therefore, when the operating shaft 11 is rotated, the adjustment rod 33 is also rotated, and the threaded shaft portion 35 is screwed into or unscrewed into the nut body 37 depending on the direction of rotation. Therefore, the adjustment rod 33 is moved forward or backward while rotating.

At this time, the sliding shaft portion 34 of the adjustment rod 33 is connected to the operating shaft 11.
Since it is slidably fitted into the connecting hole 15 of the adjusting rod 33, when the adjustment rod 33 moves as described above, sliding occurs between the sliding shaft portion 34 and the connecting hole 15, and the operation f[1111 or the axial direction Never move to.

Reference numeral 38 denotes a metal bracket fixed to the rear surface of the reflector 3, and a synthetic resin receiver 39 is supported at the rear end of the bracket 38. An open spherical recess 4o is formed.
The sphere 36 of the adjustment rod 33 is fitted into the adjustment rod 33, and the adjustment rod 33 and the reflecting mirror 3 are connected here.

Therefore, when the adjustment rod 33 is moved in the axial direction as described above, the portion of the reflection fi3 that is connected to the adjustment rod 33 is moved forward or backward.

(d. Another interval adjustment section) Next, the interval adjustment section 41 provided at a position spaced downward from the rotation fulcrum section 4 will be described.

This interval adjustment section 41 is an adjustment section for adjusting the direction of the reflecting mirror 3, that is, the irradiation angle in the vertical direction.

This interval adjustment section 41 uses an operating shaft 11 and a presser member 2 that are substantially the same as those used in the interval adjustment section 10.
A manual adjustment section 42 and a drive section 43 consisting of 6 parts are provided.

44 is a casing of the drive unit 43 fixed to the rear inner surface of the lamp housing 1. The casing 44 includes a rear half 45 and a front half 46 made of synthetic resin. Reference numeral 47 denotes a cylindrical portion formed in the rear half 45 at a location corresponding to the insertion hole 21 formed in the rear wall 22 of the lamp housing 1, and a cylindrical portion 47 is also formed in a location corresponding to the cylindrical portion 47 of the front half 46 toward the front. Cylindrical portion 48 protruding toward the
The two cylindrical parts 47 and 48 and the insertion hole 21 of the rear wall 22 of the lamp housing 1 are arranged coaxially. An appropriate distance is provided between the front end of the cylindrical portion 47 of the rear half 45 and the rear surface (inner surface) of the front half 46.

49 is an ohm wheel with a screw hole 5 in its center.
0 is formed. An annular protrusion 51 is formed around the screw hole 50 on the rear surface of the ohm wheel 49.

Such a worm wheel 49 is rotatably supported in a space between the front end of the cylindrical portion 47 of the rear half 45 and the rear surface of the front half 46. At this time, the annular protrusion 51 of the worm wheel 49 is rotatably fitted into the front end of the cylindrical portion 47 of the rear half 45, and this fitted state provides a center of rotation for the worm wheel 49.

Reference numeral 52 denotes a motor fixed within the casing 44, and a worm 53 is fixed to the output shaft of the motor, and the ohm 53 is meshed with the worm wheel 49.

Reference numeral 54 designates an intermediate support body, in which a front half 55 is in the shape of a hexagonal column, a rear half is a helical shaft 56, and a dovetail groove is formed on the outer circumferential surface. Further, a rack 57 is formed on the - face of the hexagonal column part 55 and the face of the screw shaft part 56 that is continuous therewith. Furthermore, a screw hole 58 is formed passing through the axial center of the intermediate support 54 .

Therefore, the hexagonal column portion 55 of the intermediate support 54 is connected to the front half 4
It is slidably inserted into a hexagonal engagement hole 59 formed at the front end of the cylindrical portion 48 of No. 6, allowing movement in the axial direction and preventing rotation. In addition, the intermediate support 54
The screw shaft portion 56 is screwed into the screw hole 5o of the worm wheel 49. Therefore, when the ohm wheel 49 is rotated, the intermediate support 54 is prevented from rotating by the engagement of its hexagonal column 55 with the engagement hole 59 of the front half 46, so that the ohm wheel 49 is prevented from rotating. is moved axially forward or backward depending on the direction of. The screw shaft portion 35 of the adjustment rod 33 is screwed into a screw hole 58 formed at the center of the intermediate support 54 .

60 is a potentiometer fixed within the casing 44, and a pinion 61 fixed to its operating shaft is meshed with the rack 57 of the intermediate support 54.

Therefore, when the operating shaft 11 is rotated in the interval adjustment section 41, the adjustment rod 33 is also rotated, and depending on the direction of rotation, it is screwed into or unscrewed from the intermediate support 54. state, and is forced to move forward or backward in the axial direction. Therefore, the portion of the reflecting mirror 3 connected to the adjustment rod 33 is moved forward or backward. In addition, adjustment rod 3
3 moves in its axial direction, the sliding shaft portion 34 of the adjustment rod 33 slides within the connection hole 15 of the operating shaft 11, so the operating shaft 11 is not moved in the axial direction.

When the worm wheel 49 is rotated and the intermediate support 54 is pushed in its axial direction, the adjustment rod 33 screwed onto the intermediate support 54 is moved in the axial direction together with the intermediate support 54. It will be done. Then, the portion of the reflecting mirror 3 connected to the adjustment rod 33 is moved.

Furthermore, when the intermediate support 54 is moved in its axial direction, the rack 57 formed on the intermediate support 54 rotates the operating shaft of the potentiometer 60 via the pinion 61, so that the resistance value of the potentiometer 60 increases. Change.

When remotely controlling the irradiation angle, this can be used to electrically detect the irradiation angle and to read when the adjustment target has been reached.

Incidentally, 60 is not limited to a potentiometer; in short, it is sufficient to detect the amount of movement of the intermediate support 54 in the axial direction. The amount of movement may be detected by rotating the pinion 61 and conducting the rotating contact with a separately provided fixed contact.

(e. Operation) In the above-described headlamp device, by rotating the operation shaft 11 of the interval adjustment section 10, the reflector 3 is moved between the support section by the rotation fulcrum section 4 and the interval adjustment section. It is rotated about a line connecting it to the support section 41 as a rotation axis, and its irradiation angle is adjusted in the left-right direction. Further, when the operation shaft 11 in the interval adjustment section 41 is rotated, the reflection ii3
is rotated about a line connecting the support part by the rotation fulcrum part 4 and the support part by the interval adjustment part 10 as a rotation axis, and its irradiation angle is adjusted in the vertical direction. Further, when the motor 52 is rotated by remote control, the worm wheel 49 is rotated via the ohm 53, and the irradiation angle can also be adjusted in the vertical direction.

Note that 62 is a light bulb supported at the center of the reflecting mirror 3.

(F-2, Second Embodiment) [Figs. 8 to 11] Figs. 8 to 11 show a second embodiment of the headlamp device of the present invention. In the explanation of this second embodiment, only the portion corresponding to the interval adjustment section 41 in the first embodiment will be explained, and the rotation fulcrum section 4 and the interval adjustment section 1 will be explained.
Description of the portion corresponding to 0 will be omitted.

An insertion hole 12 is provided in the rear wall 122 of the lamp housing 101.
1 is formed, on which the operating shaft 111 is rotatably supported by a holding member 126.

In addition, 112 is the shaft part of the operation shaft 111, 113 is a bolt, 1
14 is a flange of the shaft portion 112, 115 is a connecting hole of the shaft portion 112, 116 is an embedded hole of the shaft portion 112, and 117 is a bolt 1
13 is the head, 118 is the embedded shaft of the bolt 113, 119 is the flange of the bolt 113, 120.120 is the embedded shaft 11
8, a knurling process is formed on the rear wall 122 of the lamp housing 101; 123 is a surrounding wall formed on the rear wall 122 of the lamp housing 101;
．． 124 is also a mounting boss formed on the rear wall 122, 125.125 is a dovetail hole of the mounting boss 124.124,
127 is a mounting plate for the holding member 126, 127a, 127a
128 is an insertion hole provided in the mounting plate 127, 129 is a presser ring of the presser member 126, 130 is a presser edge of the presser ring, 131 is a gasket, 132.13
2 is a screw.

Reference numeral 133 designates an adjustment rod, in which a sliding shaft portion 134 at the rear end, a screw shaft portion 163 at the front end, and a cylindrical portion 164 at the intermediate portion are integrally formed. 165 is the sliding shaft part 134 and the cylindrical part 1
It is a flange formed between 64 and 166
is an annular groove formed on the outer peripheral surface of the cylindrical portion 164 at a position closer to the front. Then, the sliding shaft portion 1 of the adjustment rod 133
34 is slidably fitted into the connecting hole 115 of the operating shaft 111.

Reference numeral 167 denotes a nut made of synthetic resin, which is supported by a bracket 138 fixed to the rear surface of the reflecting mirror 103, and a screw shaft portion 163 at the front end of the adjustment rod 133 is screwed into this nut 167. .

Reference numeral 154 denotes an intermediate support body, which is formed by integrally forming a hexagonal column part 155 at the front end and a spiral shaft part 156 at the rear part, and a rack 157 extending along the axial direction is formed on the outer surface of the intermediate support body. There is. A cylindrical through hole 169 is formed in the center of this intermediate support 154.

Thus, the adjustment rod 133 is inserted into the through hole 1.69 from the rear end of the intermediate support 154, and the flange 1
65 abuts the rear end of the intermediate support 154, the annular groove 166 formed near the front end of the cylindrical portion 164 of the adjustment rod 133 is positioned slightly forward of the front end of the intermediate support 154. . Therefore, the stop washer 170
is fitted into the adjustment rod 133 from its tip side, and the engaging pieces 171, 171, . . . are fitted into the annular groove 16 of the columnar part 164
6, the adjustment rod 133 will be engaged with the cylindrical portion 16.
4, it is rotatably supported by an intermediate support body 154.

In addition, 144 is a casing similar to the casing 44,
149 is a worm wheel similar to the worm wheel 49; 152 is a motor similar to the motor 52;
3 is a worm similar to the worm 53; 160 is a potentiometer similar to the potentiometer 60;
1 is a pinion similar to the pinion 61 described above. The helical shaft portion 156 of the intermediate support 154 is screwed into the dovetail hole 150 of the worm wheel 149, and
The hexagonal column part 155 of No. 4 is slidably engaged with an engagement hole 159 at the front end of the cylindrical part 148 of the front flap 146.

Therefore, by rotating the operating shaft 111,
The adjustment rod 133 is also rotated, and the screw shaft 163 thereof is screwed into or unscrewed from the nut 167 depending on the direction of rotation. Since the adjustment rod 133 only rotates in relation to the lamp housing 101, the nut 167 moves rearward or forward along the screw shaft 163 of the adjustment rod 133. Therefore, the relevant portion of the reflecting mirror 103 (
The part to which the bracket 138 supporting the nut 16) is fixed will move rearward or forward. ) Also, when the motor 152 is rotated and thereby the worm wheel 149 is rotated via the worm 153, the intermediate support 154 is rotated depending on the direction of rotation.
moves forward or backward along its axis,
This also causes the relevant portion of the reflecting mirror 1030 to be moved forward or backward.

(G. Effects of the Invention) As is clear from the above description, the headlight device of the present invention includes a lamp housing having a concave portion opening forward, and a lens attached to the lamp housing so as to cover the opening. A reflecting mirror supporting a light source is disposed in a lamp space defined by the above, and the reflecting mirror is supported by the lamp housing by one rotation fulcrum part and two interval adjustment parts,
One of the spacing adjustment parts includes a rotatable adjustment rod whose front end is connected to the reflector and whose rear end protrudes from the rear surface of the lamp housing. a drive unit that moves the
A manual adjustment part provided on the rear surface of the lamp housing for manually rotating the adjustment rod; It is characterized by consisting of an operating shaft, a flange formed at the intermediate portion of the operating shaft, and a holding member rotatably supporting the flange on the rear surface of the lamp housing.

Therefore, in the headlamp device of the present invention, after the drive unit and the adjustment rod are installed in the lamp housing, the connection hole of the operating shaft is fitted onto the rear end of the adjustment rod protruding from the rear surface of the lamp housing, and then It is only necessary to rotatably support the flange of the operating shaft on the lamp housing using the holding member, and the workability of assembling the distance adjusting section including the manual adjusting section and the driving section is significantly improved.

[Brief explanation of the drawing]

1 to 7 show a first embodiment of the headlamp device of the present invention, FIG. 1 is a front view, and FIG. 2 is an II of FIG. 1.
- An enlarged sectional view along line II, Figure 3 is III of Figure 1.
- An enlarged cross-sectional view along line III, Figure 4 is IV- of Figure 1.
Figure 5 is an enlarged cross-sectional view taken along line IV, Figure 5 is a cross-sectional view taken along line V-V in Figure 4, Figure 6 is a cross-sectional view taken along line Vl-Vl in Figure 4, and Figure 7 is an exploded view of main parts. The perspective views and FIGS. 8 to 11 show a second embodiment of the headlamp device of the present invention, FIG. 8 is an enlarged sectional view of the main part, and FIG. 10 is a sectional view taken along line X-X in FIG. 8, FIG. 11 is an exploded perspective view of main parts, and FIGS. 12 and 13 are examples of conventional headlight devices. 12 is a sectional view of the main part, and FIG. 13 is an exploded perspective view of the main part. Explanation of symbols 1.101...Lamp housing, 2.102...Lens, 3.103...Reflector, 4...Rotation fulcrum part, 10...Interval adjustment part, 11.111. ...Operation shaft, 15.115...Connection hole, 14.114...Flange, 26.126...Press member, 33.133...Adjustment rod, 41.141...Space adjustment part, 42.142... Manual adjustment part, 43.143... Drive part, 62... Light source, 35... Middle part of adjustment rod, 36... Sphere, 39... Receiver, 49. ...Driver, 54...Adjustment rod support, 56...Width groove, 149...Driver, 154...
・Adjustment rod support body, 156... Width groove, 163... Tip of adjustment rod, 164... Middle part of adjustment rod, 167... Nut 1 to 9; 1 Lamp housing 4 rotation support I#, enlarged cross-sectional view (II-111A) Cross-sectional view (V-V line) 154-m thick 1.7-tooth support cross-sectional view (FF-FF line) (F, 2, Great Asahi 1) Figure 9 δ=:! scolding; etc.

Claims (3)

[Claims] (1) A reflecting mirror supporting a light source is disposed within a lamp space defined by a lamp housing having a concave portion opening at the front and a lens attached to the lamp housing so as to cover the opening; It is supported by the lamp housing by one rotation fulcrum part and two interval adjustment parts, and one of the interval adjustment parts is a rotatable member whose front end is connected to the reflector and whose rear end protrudes from the rear surface of the lamp housing. A manual adjustment device consisting of an adjustment rod, a drive section that is arranged in the lamp housing to surround the adjustment rod and moves the adjustment rod in the front and back direction, and a manual adjustment section that is installed on the rear surface of the lamp housing and that manually rotates the adjustment rod. The section includes an operating shaft in which a non-circular connecting hole opened at the front end is slidably connected to the rear end of the adjustment rod, a flange formed at an intermediate portion of the operating shaft, and a flange rotatably connected to the operating shaft. A headlight device characterized by comprising a holding member supported on the rear surface of the lamp housing. (2) The drive unit includes an adjustment rod support body into which the intermediate portion of the adjustment rod is screwed together and a threaded groove formed on the outer surface, and a drive body rotated by a motor and into which the adjustment rod support body is screwed. A headlamp device according to claim 1, wherein the adjustment rod has a sphere formed at its tip and fitted into a recess of a receiver supported by a reflecting mirror. (3) The drive unit includes an adjustment rod support that rotatably supports the intermediate portion of the adjustment rod but cannot move in the axial direction and has a threaded groove formed on its outer surface, and a motor that rotates the adjustment rod support. A headlamp device according to claim 1, characterized in that the adjustment rod has a screwed drive body, and the adjustment rod has a tip end screwed to a nut supported by a reflector.