CN109237416B

CN109237416B - Vehicle lamp

Info

Publication number: CN109237416B
Application number: CN201710321528.2A
Authority: CN
Inventors: 立岩丈幸
Original assignee: Koito Manufacturing Co Ltd
Current assignee: Koito Manufacturing Co Ltd
Priority date: 2017-05-09
Filing date: 2017-05-09
Publication date: 2021-05-28
Anticipated expiration: 2037-05-09
Also published as: CN109237416A

Abstract

The present invention relates to a vehicle lamp. The invention aims to improve the reliability of an operation unit for adjusting the light correction of a lamp and improve the operability of the operation unit. A vehicle lamp includes an operation unit (6) for performing a shaft driving operation on a bevel gear (50) for adjusting an optical axis provided in the lamp (1), a shaft driving force transmission body (7) of the operation unit (6) includes an operation lever (71) for performing the shaft driving operation, a drive lever (72) engaged with the bevel gear (50), and a wire (73) for connecting the operation lever (71) and the drive lever (72) in a shaft driving direction, and the drive lever (72) is formed of a metal that is hard to rust. The drive rod is formed by metal injection molding. A support member (84) extends between the drive rod (72) and the light fixture.

Description

Vehicle lamp

Technical Field

The present invention relates to a vehicle lamp, and more particularly to a vehicle lamp provided with an operation unit for adjusting and operating a light correction adjustment (optical axis adjustment) mechanism at another position.

Background

Headlamps (headlamps) of vehicles such as automobiles are provided with a light correction adjustment mechanism for adjusting the lamp optical axis to a predetermined angular direction in front of the automobile. As the light adjustment mechanism, a structure is generally adopted in which a light adjustment screw disposed in a lamp housing is operated, and the light adjustment screw is screwed to at least a part of a lamp unit built in the lamp housing, for example. The axis of the light correction screw is driven by operating the light correction screw outside the lamp unit, so that the screw portion of the lamp unit is axially fed along the light correction screw, and the tilt angle of the lamp unit in the vertical direction and the horizontal direction is adjusted by the movement.

In order to operate the leveling screw in a shaft-driven manner, a bevel gear (bevel gear) or a crown gear is generally provided at an end portion of the leveling screw exposed to the lamp housing outer side. The tip of a tool such as a cross screwdriver (cross screwdriver) is inserted between the bevel gear or the crown gear and the outer surface of the lamp housing, and the cross screwdriver is operated by a shaft driving method to rotate the bevel gear or the crown gear, thereby driving the correction screw shaft.

Patent document 1 proposes an operation unit coupled to a ring gear in order to improve the workability of the leveling screw in the leveling adjustment. The operation unit includes an operation rod directly driven by the cross screwdriver, a wire having one end integrally connected to the operation rod in the shaft driving direction, and a drive rod integrally connected to the other end of the wire in the shaft driving direction and engaged with the crown gear. When the operation lever is operated by the operation means in a shaft driving manner, the shaft driving force is transmitted to the drive lever through the wire, the crown gear engaged with the drive lever can be rotated, and the correction adjustment can be performed at a position apart from the crown gear, thereby improving the workability.

[ patent document 1 ] Japanese patent application laid-open No. 2008-243604

In patent document 1, the material of the drive rod directly coupled to the crown gear is not described in the structural portion of the operation unit, and when the drive rod is formed of resin, the drive rod is easily worn out by engagement with the metal crown gear when the shaft is driven and operated, and the reliability is lowered. The drive rod is preferably made of metal for this problem of wear, but iron-based metal which is easily worked by forging or the like causes a problem of corrosion due to rust.

When the drive lever is formed of metal, as will be described later in detail, when the drive lever is operated by shaft driving, the outer surface of the lamp housing made of resin and in contact with the drive lever is worn away by the drive lever. If a gap is secured so that the drive lever does not contact the outer surface of the ring gear, the drive lever becomes loose when driven by the shaft due to the gap, smooth torque transmission from the drive lever to the ring gear is impaired, and the operability of the correction adjustment is lowered.

Disclosure of Invention

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle lamp which solves the above problem, improves the reliability of an operation unit for performing correction adjustment, and has an operation unit with improved operability in correction adjustment.

The vehicle lamp of the invention includes an operation unit for shaft driving operation of a gear for optical axis adjustment provided in the vehicle lamp; the operation unit includes an operation lever for performing a shaft driving operation, a drive lever engaged with the gear, and a wire for connecting the operation lever and the drive lever in a shaft driving direction; the drive rod is formed of a metal which is hard to rust.

In the present invention, the drive rod is configured as a formed article formed by an MIM method (metal injection molding method). Also, a wear-resistant support member interposed between the drive lever and the lamp is included. Further, the metal wire is preferably made of a metal which is hard to rust.

In the present invention, the operation unit includes a housing covering the operation lever, the drive lever, and the wire, the housing is fixedly supported to the lamp at least at each portion covering the operation lever and the drive lever, and the housing is detachably mounted to a frame provided to the lamp at the fixed support of the operation lever. For example, the housing and the holder are configured such that a hook provided on one side and a coupling hole provided on the other side are coupled to and from each other so as to be able to be coupled and uncoupled.

The effects of the present invention are explained below:

according to the present invention, since the drive lever of the operation unit is made of a metal that is hard to rust, it is possible to prevent an inappropriate state of the shading adjustment due to rust from occurring in advance, and to improve the reliability of the shading adjustment. Further, by providing the support member to the drive lever, wear in the lamp can be prevented, smooth torque transmission (shaft driving force transmission) during the light correction adjustment can be ensured, and the operability of the light correction adjustment can be improved.

Drawings

Fig. 1 is a rear view of a headlamp to which the present invention is applied.

Fig. 2 is a sectional view taken along line ii-ii of fig. 1.

Fig. 3 is a schematic external view of the operation unit.

Fig. 4 is a sectional view showing a main part of the operation unit in an enlarged manner in a longitudinal direction.

Fig. 5 is an external perspective view including an operation housing portion.

Fig. 6 is an external perspective view including a drive housing portion.

Fig. 7 is a sectional view showing a meshing state of the drive lever and the bevel gear.

The symbols in the drawings have the following meanings:

1-Lamp housing

2-Lamp Unit

3-ball axle

4-driven nut

5A-first light correction screw, 5B-second light correction screw

6-operating Unit

7-shaft driving force transmission body

8-shell

9-frame

11-lamp body

50-bevel gears (crown gears), 50 a-gear teeth

71-operating lever

72-drive rod

73-Metal wire (wire)

81-operating case section

82-Driving housing part

83-wire housing part

84-support member

111-boss

112-screw hole

113-screw

711, 721-shaft part

712-guide part

713, 722-binding part

714, 723-rectangular recess

811, 821 bearing section

812, 823-support sheet

813-hook part

822-cover part

824-screw insertion through hole

PD-cross screw rotating tool

Detailed Description

Embodiments of the present invention will be described below with reference to the drawings.

Fig. 1 is a rear view of a left headlamp of an automobile to which the present invention is applied, and fig. 2 is an enlarged sectional view taken along line ii-ii of fig. 1. As shown in fig. 2, a lamp housing 1 is constituted by a lamp body 11 made of resin and a front cover 12 made of light-transmitting resin attached so as to cover the front surface of the lamp body 11, and a lamp unit 2 is incorporated in the lamp housing 1.

The lamp unit 2 is configured as a projection type lamp unit, and includes a base 21, a light source 22 such as an LED (light emitting diode) mounted on the base 21, a reflector 23 fixed to the base 21 so as to cover an upper region of the light source 22, and a projection lens 24 fixed to the base 21 at a position forward of the light source 22. The light emitted from the light source 22 is reflected by the reflector 23, and is projected to a forward region with a desired light distribution by the projection lens 24, thereby functioning as a headlight of an automobile.

A frame 20 having a substantially rectangular plate shape is integrally formed with the base 21 of the lamp unit 2, and is disposed in a desired surface area as viewed from the front-rear direction of the lamp, and the lamp body 11 is supported by the ball shaft 3 at one position of the surface area of the frame 20. Further, driven nuts 4 are supported at the other two positions of the surface area of the frame 20, and the screw portions 52 of the first and second leveling screws 5A and 5B are screwed to the driven nuts 4. Fig. 2 illustrates only the first shading screw 5A. The first and second leveling screws 5A and 5B are axially supported by the lamp body 11 with the shaft 51 facing the front-rear direction of the lamp.

The frame 20, i.e., the lamp unit 2, can be tilted in the vertical direction and the lateral direction about the ball shaft 3 as a fulcrum by being supported by the ball shaft 3 and the two leveling

screws

5A and 5B. Then, the first leveling screw 5A is located at a relative position with respect to the ball shaft 3 in the vertical direction, the first leveling screw 5A is driven by the shaft, the driven nut 4 screwed with the first leveling screw 5A is fed in the lamp front-rear direction, and the tilt position of the lamp unit 2 in the vertical direction is adjusted. The second correction screw 5B, which is not shown in fig. 2, is disposed in the left-right direction so as to face the ball shaft 3, and the tilt position of the lamp unit 2 in the left-right direction is adjusted by driving the second correction screw 5B. Thus, the first and second light correction screws 5A and 5B are operated by shaft driving, whereby the angle of the optical axis of the lamp unit 2 can be adjusted, and light correction adjustment can be performed.

The first and second leveling screws 5A and 5B are pivotally supported on the lamp body 11 so as to be drivable in the forward and backward directions with the shaft portion 51 penetrating the lamp body 11, as in the first leveling screw 5A shown in fig. 2. A screw portion 52 is formed in a tip end region of the shaft portion 51, and the driven nut 4 is screwed to the screw portion 52. Further, at an outer end portion of the shaft portion 51 exposed to the outside of the lamp housing 1 from the rear surface of the lamp body 11, a bevel gear (bevel gear) 50 in which a plurality of gear teeth are radially arranged on an inner surface of a concave conical surface is integrally provided. Here, the shaft 51 of the first leveling screw 5A and the bevel gear 50 are formed of a metal material, but may be formed by integral molding of a resin.

The plurality of gear teeth 50a provided in the bevel gear 50 are disposed with a desired gap from the rear surface of the lamp body 11. Therefore, although not shown, when the tip portion of the cross screwdriver is inserted into the gap from the side of the bevel gear 50, and the tip portion is engaged with the gear teeth 50a to shaft-drive the cross screwdriver, the bevel gear 50 can be rotated about the shaft portion 51, and the first leveling screw 5A can be shaft-driven.

On the other hand, as shown in fig. 1, the operating unit 6 is supported by the lamp body 11 at a position on the rear surface of the lamp body 11, extending from the position where the first leveling screw 5A is disposed to another position apart from the position, here, a position near the upper side of the lamp body 11. In this embodiment, the operation unit 6 is not provided for the second correction screw 5B, but may be provided.

Fig. 3 is a schematic external view of the operating unit before it is assembled to the lamp body 11, and fig. 4 is a cross-sectional view showing the main part thereof in an enlarged manner in the longitudinal direction. The operation unit 6 is constituted by a shaft driving force transmission body 7 for transmitting torque, i.e., shaft driving force, and a case 8 covering the shaft driving force transmission body.

The shaft driving force transmission body 7 is basically configured to connect the operation lever 71 and the drive lever 72 in the longitudinal direction thereof by a wire 73, as in the technique of patent document 1. The operation lever 71 is made of a rigid resin, and includes a cylindrical shaft portion 711, a funnel-shaped guide portion 712, and a coupling portion 713, the guide portion 712 is integrally formed at one end portion of the shaft portion 711, and as described later, has a larger opening diameter and is formed in an inverted conical shape compared to a distal end portion of a cross screwdriver PD used as a tool, and the coupling portion 713 is provided on an inner bottom surface of the guide portion 712 and is formed of a cross groove coupled to the distal end portion of the cross screwdriver PD. The cross-shaped recess of the coupling portion 713 is the same as a cross-shaped recess provided in the head of a general cross screw.

One end of the wire 73 is connected to the other end of the shaft 711. The wire 73 is formed of a material having a predetermined length in which a cross-sectional shape perpendicular to the longitudinal direction is circular, having appropriate flexibility in the longitudinal direction, and having high rigidity in the axial rotation direction, and is formed of stainless steel. Both end portions of the wire 73 are formed with

coupling portions

731 and 732 having a rectangular cross-sectional shape, respectively, and the coupling portion 731 at one end is fitted into the rectangular recess 714 formed at the other end portion of the shaft portion 711. Thereby, the operation lever 71 and the wire 73 are integrated at least in the axial rotation direction.

The drive lever 72 is formed of stainless steel which is hard to rust, and includes a cylindrical shaft portion 721 and a coupling portion 722 integrally formed with one end portion of the shaft portion 721. The coupling portion 722 is formed in a cross shape substantially the same as the front end portion of the cross screwdriver. A rectangular recess 723 is formed in the other end of the shaft 721, and a connection portion 732 at the other end of the wire 73 is fitted therein. Thereby, even with the drive lever 72 and the wire 73, they are integrated at least in the shaft rotation direction.

Here, conventionally, the drive rod 72 is formed of an iron-based material. This is because the coupling portion 722 and the rectangular recess 723 can be easily formed in the drive rod 72 by forging. Therefore, there is a problem that the drive lever 72 is rusted due to long-term use. If rust occurs, the state of engagement between the first leveling screw 5A and the bevel gear 50 deteriorates, and it becomes difficult to adjust the optical axis. In the present embodiment, by using MIM (metal injection molding) for manufacturing the drive lever 72, even stainless steel that is difficult to rust can manufacture the coupling portion 722 of the drive lever 72 and the like into a desired shape, and rust problems can be solved.

As shown in fig. 3, the housing 8 of the operation unit 6 includes an operation housing 81 covering the operation lever 71, a drive housing 82 covering the drive lever 72, and a wire housing 83 covering the wire 73.

Fig. 5 is an external perspective view including the operation housing 81. Referring to fig. 4, the operating case 81 is formed of a resin material and includes a substantially cylindrical bearing portion 811 that axially supports the shaft portion 711 of the operating lever 71. The bearing portion 811 is configured to prevent the operating lever 71 from coming off in the axial direction, and the description of the configuration is omitted here. The guide portion 712 of the operating lever 71 projects from the bearing portion 811 in the axial direction, and is capable of operating the shaft to drive the operating lever 71 as described later.

A pair of support pieces 812 (only the front support piece is shown in fig. 5) extending in parallel in the same direction are integrally provided on both outer side surfaces of the bearing portion 811, that is, on both side surfaces in the direction perpendicular to the axial direction. The pair of support pieces 812 has a slight elasticity in the plate thickness direction, and hook portions 813 protruding in a wedge shape in the plate thickness direction are integrally formed on the outer side surfaces of the front ends in the extending direction toward the lower side of each support piece 812.

Fig. 6 is an external perspective view including the driving housing portion 82. Referring to fig. 4, the drive housing 82 is formed of a resin material, and includes a substantially cylindrical bearing portion 821 which is axially movably fitted in the shaft portion 721 supporting the drive lever 72, and a lid portion 822 integrally attached to the bearing portion 821 in an axial direction. The shaft portion 721 is supported by the bearing portion 821 and the lid portion 822, and is prevented from coming off. The coupling portion 722 of the driving lever 72 is exposed to the outside through the cover 822.

A pair of wing-like support pieces 823 extending in a tangential direction (horizontal direction in fig. 6) of the outer peripheral surface of the bearing portion 821 are integrally provided in a part of the outer peripheral surface, in this case, in an upper peripheral region in fig. 6. The support piece 823 is opened at both ends in the longitudinal direction, and is provided with a screw insertion through hole 824 penetrating in the plate thickness direction.

Further, the support member 84 extending along the coupling portion 722 of the drive lever 72 is integrally supported by the cover 822. The support member 84 extends along a circumferential area on a radially opposite side with respect to a circumferential area of the bearing portion 821 on which the support piece 823 is formed. The support member 84 is made of a material having wear resistance, preferably somewhat elastic, and being resistant to rusting, and is here a small plate-shaped piece of stainless steel, the base end portion of which is integrated in a state embedded in the cover 822, and the tip end portion of which is bent in an L-shape in the plate thickness direction, and covers a region from one side region to the shaft end region of the drive lever 72. The support member 84 is disposed in proximity to or substantially in contact with the coupling portion 722.

The wire case portion 83 is formed of a flexible resin tube covering the entire circumference of the wire 73, and the wire 73 extends substantially over the entire length thereof, and both ends thereof are connected to each other in a state of being fitted into the tube portion 810 provided in the operation case portion 81 and the tube portion 820 provided in the drive case portion 82. The inner diameter of the wire case 83 is larger than the outer diameter of the wire 73, and the wire 73 is configured to be axially driven inside the wire case 83.

The operating unit 6 having the above-described configuration is supported on the rear surface of the lamp body 11 as shown in fig. 1 and 2. That is, the housing 8 of the operation unit 6 is fixedly supported on the rear surface of the lamp body 11, and thereby the shaft driving force transmission body 7 supported in the housing 8 in the built-in state, that is, the operation lever 71, the driving lever 72, and the wire 73 are supported to be axially drivable around its own axis.

As shown in fig. 6, a pair of bosses 111 are integrally formed at a rear surface of the lamp body 11 at positions adjacent to the bevel gears 50 provided on the first leveling screws 5A at a desired interval and at a desired height, and screw holes 112 are opened in the bosses 111, respectively. The driving housing 82 of the operation unit 6 is held between the bosses 111 by the bosses 111, and the screw 113 is inserted into the screw insertion through hole 824 opened through the pair of support pieces 823 of the driving housing 82, and the screw 113 is screwed into the screw hole 112, thereby fixing and supporting the driving housing 82 to the lamp body 11.

When the driving case 82 is fixed in this way, as shown in the sectional view of fig. 7, the coupling portion 722 of the driving lever 72 is inserted into the gap between the gear teeth 50a and the rear surface of the lamp body 11 from the side of the bevel gear 50, and the coupling portion 722 is engaged with the gear teeth 50 a. Therefore, when the shaft drives the drive lever 72, the bevel gear 50 rotates, and the shaft drives the first leveling screw 5A.

In this way, in a state where the drive lever 72 is inserted into the gap between the gear teeth 50a of the bevel gear 50 and the rear surface of the lamp body 11, the support member 84 provided in the cover 822 is interposed between the coupling portions 722 with the drive lever 72 in a state where it is in close contact with or close to the rear surface of the lamp body 11. Thereby, the coupling portion 722 is supported in a state of being sandwiched between the support member 84 and the gear teeth 50a of the bevel gear 50, preventing the coupling portion 722 from directly contacting the rear surface of the lamp body 11.

On the other hand, as shown in fig. 1, the operation housing 81 of the operation unit 6 supports an upper region behind the lamp body 11, which is easily reached by the hand of the operator. Since the wire 73 and the wire case portion 83 of the operation unit 6 have flexibility, the operation unit 6 can be supported by being arranged from the driving case portion 82 to the operation case portion 81 in a curved state, and the operation case portion 81 can be supported at an arbitrary position.

As shown in fig. 5, the operation housing 81 is supported by being inserted into the frame 9 erected on the rear surface of the lamp body 11. The frame 9 includes four side walls 91 to 94 constituting a nearly rectangular opening 90, and among the four side walls 91 to 94, a pair of

side walls

91 and 93 opposed to each other in the extending direction of the operation unit 6 are formed with an arc-shaped notch 95 from the front end edge portion, so that a bearing portion 811 capable of supporting the operation case portion 81 is provided in the notch 95. Further, rectangular coupling holes 96 are opened in the plate thickness direction in the other pair of

side walls

92, 94 orthogonal to the

side walls

91, 93. The coupling hole 96 is capable of coupling a pair of hook portions 813 provided in a support piece 812 of the operation housing portion 81.

Therefore, when the operation housing 81 of the operation unit 6 is supported by the lamp body 11, the operation housing 81 can be inserted into the opening 90 of the frame 9. Bearing portions 811 of operating case 81 are supported by notches 95 of the pair of

side walls

91 and 93. In conjunction with this insertion, the pair of support pieces 812 of the operation case 81 are inserted along the inner surfaces of the other pair of

side walls

92, 94. When the insertion is performed to the set position, the hook portions 813 of the support piece 812 are respectively coupled to the coupling holes 96, and the two are coupled to each other.

Accordingly, the operation housing portion 81 can be fixed and supported to the bracket 9 and supported to the lamp body 11 without using screws, and therefore the number of parts for fixing and supporting can be reduced. Of course, the hook portions 813 are pushed inward from both sides to release the coupling with the coupling holes 96, so that the operating case 81 can be taken out from the rack 9.

As described above, in order to adjust the light correction of the headlamp by the operation unit 6 fixedly supported by the lamp body 11, as shown in fig. 1 and 2, the operation lever 71 of the operation unit 6 is driven axially by the cross screw PD. That is, the tip end portion of the cross screwdriver PD is inserted into the guide portion 712 of the operation lever 71 so that the tip end portion is coupled to the coupling portion 713 of the operation lever 71. Since the guide portion 712 has a funnel shape, the insertion of the distal end portion of the cross screwdriver PD can be guided so that the distal end portion is surely coupled to the coupling portion 713.

When the operation lever 71 is driven by the shaft of the cross screwdriver PD, the shaft drive of the operation lever 71 is transmitted to the wire 73, and further, the shaft drive of the wire 73 is transmitted to the driving lever 72. The wire 73 can be driven by the shaft even when it is bent, and the shaft driving force can be transmitted from the operation lever 71 to the driving lever 72. When the shaft drives the drive lever 72, the coupling portion 722 engages with the gear teeth 50a of the bevel gear 50, whereby the shaft drives the bevel gear 50 and the first leveling screw 5A. The first light correction screw 5A is driven by a shaft, and light correction adjustment in the vertical direction of the lamp unit 2 is performed.

At this time, when the support member 84 is set in an elastic contact state with respect to the rear surface of the lamp body 11, the coupling portion 722 of the drive lever 72 is energized toward the bevel gear 50 by the elastic reaction force, and the meshing state with the gear teeth 50a can be stably maintained. This prevents the drive lever 72 from being loosened when the shaft drives the drive lever, ensures smooth torque transmission from the drive lever 72 to the bevel gear 50, and improves operability in the light correction adjustment.

Further, since the support member 84 is interposed between the drive lever 72 and the rear surface of the lamp body 11, the coupling portion 722 of the drive lever 72 is prevented from directly contacting the rear surface of the lamp body 11. Thus, when the metal drive lever 72 is driven by the shaft, abrasion of the rear surface of the lamp body 11 due to the shaft driving in a state where the coupling portion 722 is in contact with the rear surface of the lamp body 11 made of resin is prevented.

Since the drive lever 72 is formed of stainless steel which is hard to rust, rust due to long-term use can be suppressed, the meshing state with the bevel gear 50 can be prevented from being damaged by rust, and the deterioration of the correction adjustment reliability can be prevented. Further, as in the embodiment, since the driving case portion 82 holding the driving lever 72 is fixed to the lamp body 11 by the screw 113, the driving lever 72 can be firmly supported, and the engagement state with the bevel gear 50 can be stably maintained. By fixing the drive case portion 82 with the screw 113, it is not necessarily easy to replace only the drive lever 72 by releasing the fixation, but the replacement when the drive lever 72 rusts is hardly performed, and therefore, the replacement frequency can be reduced.

Since the wire 73 is also made of stainless steel, which is hard to rust, it is possible to prevent a shaft drive failure in the wire housing portion 83 due to rust and a correction adjustment failure associated therewith. The wire 73 is also incorporated in the wire case portion 83, and replacement is not always easy, but replacement by rust is hardly necessary.

On the other hand, since the operation lever 71 is made of resin, it may be necessary to replace the operation lever in view of durability. In this case, when the hook portions 813 of the operation case 81 are pushed from both sides and the coupling with the coupling holes 96 is released, the operation case 81 can be easily taken out from the rack 9. Then, when the operation lever 71 is pulled in the distal direction, the engagement with the wire 73 in the rectangular recess 714 can be released, and the operation lever 71 can be easily replaced by detaching the operation lever from the operation case 81. Therefore, the operation lever 71 does not necessarily need to be made of a metal material that is hard to rust, and can be configured at low cost. Since no particularly strong force is applied to the operation lever 71 during operation, such a support form is sufficient.

If the racks 9 are provided at a plurality of positions on the rear surface of the lamp body 11, the support position of the operation lever 71 can be changed by detaching the operation housing part 81 from one rack and fixing it to a different rack. This also allows the working position to be arbitrarily changed according to the preference of the operator when the light correction adjustment is performed. In this case, it is needless to say that the operation case 81 can be changed to any position by the flexibility of the wire 73 and the wire case 83.

The above description relates only to the operation unit for adjusting the first correction screw 5A, but the second correction screw 5B can be applied similarly.

As an example of the metal which is hard to rust, stainless steel is used for the drive rod and the wire in the embodiment, but other metal which is hard to rust may be used. The drive rod 72 is preferably made of a metal that can be produced by the MIM method.

The coupling portion between the operation lever and the drive lever in the present invention is not limited to the cross structure of the cross screwdriver described in the embodiments, and any structure may be employed as long as it can generate a shaft driving force (rotational force) in conjunction with a tool for operation and transmit the shaft driving force in mesh with a gear for light correction.

The vehicle lamp according to the present invention is not limited to the headlamp of the embodiment, and can be applied to any lamp provided with a gear for light correction for adjusting an optical axis.

The embodiments of the present invention have been described above with reference to the drawings, but the present invention is not limited to the above embodiments. Various modifications may be made within the scope of the technical idea of the present invention, and they are within the scope of the present invention.

Claims

1. A lamp for a vehicle, characterized in that:

the vehicle lamp includes an operation unit for performing a shaft driving operation on a gear for adjusting an optical axis provided in the vehicle lamp;

the operation unit includes an operation lever for performing a shaft driving operation, a drive lever engaged with the gear, and a wire for connecting the operation lever and the drive lever in a shaft driving direction;

the driving rod is made of metal which is difficult to rust;

a rectangular recess is formed in the drive lever, and a connecting portion having a rectangular cross-sectional shape at an end of the wire is fitted into the rectangular recess.

2. A vehicle lamp according to claim 1, wherein:

the driving rod is a formed article formed by metal injection molding.

3. A vehicle lamp according to claim 1, wherein:

includes a wear-resistant support member interposed between the drive rod and the lamp.

4. A vehicle lamp according to claim 2, wherein:

5. A vehicle lamp according to claim 1, wherein:

the metal wire is formed of a metal that is less susceptible to rusting.

6. A vehicle lamp according to claim 2, wherein:

the metal wire is formed of a metal that is less susceptible to rusting.

7. A vehicle lamp according to claim 3, wherein:

the metal wire is formed of a metal that is less susceptible to rusting.

8. The vehicular lamp according to claim 4, wherein:

the metal wire is formed of a metal that is less susceptible to rusting.

9. A lamp for a vehicle as claimed in any one of claims 1 to 8, wherein:

the operating unit includes a housing covering the operating lever, the drive lever, and the wire, the housing is fixedly supported to the lamp at least at each portion covering the operating lever and the drive lever, and the housing is detachably supported to a frame provided to the lamp in the fixing support of the operating lever.

10. A vehicle lamp according to claim 9, wherein:

the housing and the holder are configured such that a hook provided on one side and a coupling hole provided on the other side are coupled to and from each other so as to be able to be coupled and uncoupled.