JPH0731448Y2 - Car headlamp - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a vehicle headlamp capable of adjusting the vertical and horizontal illumination angles, and particularly whether the horizontal illumination angle is appropriate. The present invention relates to an automobile headlamp having a detection mechanism for detecting whether or not it is present.

[Conventional technology]

The headlamp is equipped with an aiming mechanism that can be tilted around a predetermined horizontal axis and a vertical axis, respectively. With this aiming mechanism, the irradiation direction of the headlamp, that is, the irradiation angle of the headlamp is within a predetermined range. Adjustment (hereinafter referred to as aiming adjustment)
Has been done. And this headlamp aiming mechanism actually turns on the headlamp in a dark room,
Irradiation is performed on the screen at a certain distance from the headlamp, and the irradiation spot on the screen is adjusted to be at a predetermined position.

[Problems to be solved by the invention]

However, in the above-mentioned conventional aiming adjustment, many equipments such as a large dark room and a screen are required. Further, aiming adjustment must be performed while looking at the screen so that the irradiation spot of the headlamp comes to a predetermined position, and there is a problem that the adjustment work takes time.

Headlamps used in the United States have three location bosses, which are measurement reference planes, protruding from the front lens, and a measuring instrument generally called an aimer is set in contact with these location bosses. , It is designed to measure whether the headlamp is tilted with respect to the horizontal plane. That is, when the vehicle is in a horizontal state, the front end face of the location boss is formed to be a vertical plane, and if the aimer is set with this front end face of the location boss as the contact reference plane, the headlamp of the horizontal plane is The amount of tilt can be measured. Then, it is required that the measurement value (inclination amount) by the aimer be within a predetermined range. Therefore, for headlamps for the US, the location boss must be formed,
In addition to headlamps for Japan and Europe, there was also the annoyance of having to manufacture headlamps for the United States independently.

The present invention has been made in view of the above-mentioned problems of the prior art,
The first purpose is that it does not require large-scale equipment such as a darkroom, screen, aimer, etc.
To provide a headlamp for an automobile capable of easily confirming whether or not the irradiation angle of the headlamp in the left-right direction is wrong and easily adjusting the irradiation angle of the headlamp in the left-right direction. A second object of the present invention is to provide a headlamp for an automobile, in which it is easy to detect the deviation of the irradiation angle of the headlamp in the left-right direction.

[Means for Solving the Problems]

In automobile headlamps, a reflector movable type in which a reflector separate from the lamp body is provided in the lamp body so as to be tiltable with respect to the lamp body, and a reflector is integrally formed on the inner peripheral surface of the lamp body. There are two types of unit movable type in which the body is provided so as to be tiltable with respect to the lamp housing, and the means taken for each case will be described below.

First, in the case of a reflector-movable headlamp, it is arranged between the lamp body and the reflector in the front-rear direction with the tip end abutting against the back side of the reflector by spring biasing, and A sliding member that slides in conjunction with tilting; a displacement amount increasing transmission mechanism that mechanically enlarges and transmits the displacement amount of the sliding member; and a sliding member that is connected to the displacement amount increasing transmission mechanism. It consists of a displacement amount magnifying display member that displaces from the fixed side reference point by an amount equivalent to the magnified displacement amount, and is equipped with an inclination measuring device that measures the inclination of the reflector around the horizontal axis, and also on the lamp body or front lens. A transparent peep window for reading the enlarged displacement amount is formed.

On the other hand, when the headlamp is a unit movable type, it is arranged between the lamp housing and the lamp body / reflector unit in the front-rear direction with the tip end abutting against the back side of the lamp body by being biased by a spring. Lamp body
A sliding member that slides in conjunction with tilting of the reflector unit about a vertical axis, a displacement amount increasing transmission mechanism that mechanically enlarges and transmits the displacement amount of the sliding member, and a displacement amount increasing transmission mechanism. It is composed of a displacement amount magnifying display member which is connected to and displaces from the fixed side reference point by an amount corresponding to the enlarged displacement amount of the sliding member, and an inclination measuring device for measuring the inclination of the lamp body / reflector unit around the horizontal axis. It was designed to be worn.

[Action]

The sliding member slides due to the tilting of the reflector (the lamp body / reflector unit in the unit movable type) around the vertical axis, and the sliding amount (displacement amount) of this sliding member is mechanically expanded by the displacement expansion transmission mechanism. It is transmitted to the displacement amount magnifying display member, and the relative position of the displacement amount magnifying display member with respect to the fixed side reference point shows the deviation of the irradiation angle in the left-right direction of the headlamp in an enlarged manner.

In the movable reflector type, this shift amount is read through the observation window, while in the unit movable type, this shift amount is directly read.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings.

1 to 9 show a reflector movable type automobile headlamp according to an embodiment of the present invention. FIG. 1 is a front view of a headlamp to which an aiming mechanism is assembled, and FIG. Is a plan view of the headlamp, and FIG. 3 is a horizontal sectional view showing a part of the headlamp (part III-II in FIG. 1).
Fig. 4 is a longitudinal sectional view of the same. Fig. 4 is a longitudinal sectional view of the same. Fig. 5 is a longitudinal sectional view of an assembly portion of a level, which is a first inclination measuring device for measuring an inclination of a reflector about a horizontal axis. FIG. 6 is a longitudinal sectional view of an assembly portion of a second tilt measuring device for measuring the tilt of the reflector about the vertical axis, FIG. 7 is an enlarged perspective view of the second tilt measuring device, and FIG. FIG. 9 is a perspective view of another embodiment of the inclination measuring device, and FIG. 9 is a perspective view of still another embodiment of the second inclination measuring device.

In these drawings, reference numeral 2 denotes a container-shaped lamp body, a reflector 4 is assembled therein, and a sealing groove 3 formed in a rectangular front opening portion of the lamp body 2 has a sealant 3a interposed therebetween. The front lens 6 is assembled and integrated as a headlamp.

As shown in FIGS. 1, 3, and 4, the reflector 4 includes a ball joint 10 and three adjusting screws 20, 30.
Supported by dots. The ball portion 12 side of the ball joint 10 is supported by the lamp body 2 side, and the reflector 4 can swing about the ball joint 10. The adjusting screws 20 and 30 are both rotatably supported by the lamp body 2, and the nuts 22 and 32 on the reflector 4 side are also supported.
And the nuts 22 and 32 are moved back and forth along the adjusting screws 20 and 30 by rotating the adjusting screws 20 and 30, respectively, whereby the inclination of the reflector 4 is changed. Reference numeral 14 is a socket that supports the ball portion 12, and is fixedly supported by a bracket 16 fixed to the back side of the reflector 4. Further, reference numerals 22 and 32 are nuts with which the adjusting screws 20 and 30 are screwed, and are supported by brackets 26 and 36 fixed to the back surface of the reflector 4. Reference numerals 24 and 34 are compression coil springs and reference numerals 27 and
37 is an O-ring, and 28 and 38 are flanges projecting from the adjusting screws 20 and 30, respectively.

The supporting point of the reflector 2 by the adjusting screw 20 (the screwing portion between the adjusting screw 20 and the nut 22) is orthogonal to the optical axis 1 of the valve 41, which will be described later, and passes through the ball joint 10.
Reflector 4 located on Lx with adjusting screw 30
The support point of (the screwing part of the adjusting screw 30 and the nut 32) is
It is located on a vertical axis Ly that is orthogonal to the optical axis 1 and that passes through the ball joint 10. Therefore, the turning of the adjusting screw 20 causes the reflector 4 to tilt around the vertical axis Ly, and the reflector 4 is tilted.
Of the headlamp, that is, the irradiation angle of the headlamp in the left-right direction can be adjusted. On the other hand, the turning of the adjusting screw 30 causes the reflector 4 to tilt about the horizontal axis Lx orthogonal to the vertical axis Ly, and the tilting of the reflector 4 in the vertical direction,
That is, the vertical irradiation angle of the headlamp can be adjusted. Thus, the two adjusting screws 20 and 30 can adjust the tilt of the reflector 4, that is, the irradiation angle of the headlamp.

Further, in FIG. 3, reference numeral 40 is a valve socket in which a valve 41 is connected and integrated. An opening 2a for attaching and detaching a bulb socket is formed on the back side of the lamp body 2, and the bulb socket 40 is formed on the rear top of the reflector 4 through the back side opening 2a of the lamp body. It is attached to the socket hole 5. A rubber cover 46, which closes the opening between the reflector 4 and the lamp body 2, is attached to the outer periphery of the rear top of the reflector 4,
Locking cap on outer circumference of valve socket 40
By 47, the bulb socket 40 is pressed and fixed in the socket hole 5 of the lamp body, and the inner peripheral edge portion 46a of the rubber cover 46 is pressed and closely attached to the back side peripheral wall 4A of the lamp body. Reference numeral 42 is a base portion to which the valve 41 is attached, and reference numeral 44 is a cylindrical connector portion provided with a connection terminal inside.

Further, reference numeral 3 is a seal groove formed in the peripheral edge of the front opening of the lamp body 2. The seal agent 3a is loaded in the seal groove 3 and the legs of the front lens 6 are engaged. Reference numeral 7 is a clip for mechanically fastening the front lens 6 and the lamp body 2.

In FIGS. 1 to 3 and 5, reference numeral 50 is a level, which is a first inclination measuring device for measuring the inclination of the reflector 4 about the horizontal axis Lx, that is, the inclination of the headlamp in the vertical direction. , Is arranged in the recess 4b formed in the right corner of the reflector upper wall. Level 50 is the level casing
The direct type bubble tube 51 is housed and integrated in 52.
The casing 52 has a concave and convex engagement with the vertical wall 4d of the lamp body and screws.
It is fixed to the bottom surface 4b _{1 of the} recess 4b by 58.

A linear scale 54 is attached to the upper side surface of the bubble tube 50, and the extending direction of the bubble tube 50 is parallel to the optical axis 1 direction. Reference numeral 56 indicates a bubble. A leaf spring 59 is interposed between the casing 52 and the bottom surface 4b ₁ of the recess of the lamp body, and a screw 58
The position of the bubble in the bubble tube 50 can be adjusted by adjusting the rotation of the. Then, when the position of the reflector 4 around the horizontal axis Lx, that is, the vertical tilt of the reflector 4 is in an appropriate position, the adjusting screw 58 is used so that the bubble 56 of the bubble tube 51 comes directly to the scale zero position 55 of the scale 54. Adjust the inclination of the bubble tube 51. No step is formed in the area 6b of the front lens 6 corresponding to the scale forming area of the electronic level 50. That is, as shown in FIG. 2, diffusion steps S extending substantially parallel to the optical axis are formed at regular intervals on the inner surface of the upper side wall of the front lens 6 so that the light leakage from the side surface of the front lens is inconspicuous. However, a non-step surface observation window W is formed in the front lens upper side wall region 6b corresponding to the first inclination measuring device 50, and the first inclination measuring device (level) 50 is formed through this observation window W. It is possible to read the scale of.

In FIGS. 1 to 3, 6, and 7, reference numeral 60
Is a second tilt measuring device which is provided at a horizontal plane position including the horizontal axis Lx and measures the tilt of the reflector 4 around the vertical axis, that is, the tilt in the left-right direction of the irradiation direction of the headlamp.

The second inclination measuring device 60 has a mounting holding member 59 (see FIG. 6).
A transparent container-shaped bracket 61 that is attached to the lamp body 2 via the lamp body 2 and a bracket 61 that is supported by the bracket 61 and that is disposed parallel to the optical axis l. Of the sliding rod 64, which is held in pressure contact with the back surface of the displacement lever, the displacement amount increasing transmission mechanism 65, which is a lever type swinging lever mechanism, and which is supported by the bracket 61 and arranged in parallel with the sliding rod 64. The displacement amount enlargement display rod 68 is connected to the amount enlargement transmission mechanism 65. The displacement amount increasing transmission mechanism 65 has a slit 67 formed at both ends thereof, and a horizontal lever 66 that can swing around a vertical support shaft 66a.
And engaging pins 64a, 68 protruding from the sliding rod 64 and the displacement amount magnifying display rod 68 and engaging with the slit 67, respectively.
It consists of a. The ratio of the arm lengths l ₁ and l ₂ from the fulcrum of the horizontal lever 66 to the point of load application is defined as l ₁ <l ₂ .
The sliding amount of the sliding rod 64 is adapted to be magnified by l ₂ / l ₁ times on the displacement amount magnifying display rod 68. Display rod
68 has a scale 69, and the reference numeral 61a of the bracket 61
By reading the scale 69 on the end surface which is the fixed side reference point indicated by, the tilt amount of the reflector 4 about the vertical axis,
That is, the inclination of the irradiation angle of the headlamp in the left-right direction can be read. In addition, the reading of the scale of the inclination measuring instrument 60 is
The movement is performed through the observation window W formed at the upper edge of the front lens 6, but the movement amount of the display rod 68 is enlarged to l ₂ / l ₁ times the movement amount of the sliding rod 64 (l ₂ > l ₁ ). Therefore, it is very easy to read.

Further, as shown in FIG. 6, the abutment surface 4c ₁ of the tip portion of the sliding rod 64 of the vertical wall 4c is a curved surface having a radius R centered on the horizontal axis Lx, and the tilting of the reflector about the horizontal axis is performed. In some cases, the scale of the first inclination measuring device 60 does not change. And the position around the vertical axis Ly of the reflector 4,
That is, when the reflector is properly tilted in the left-right direction, a zero point 69a serving as a reference point is set at the graduation position facing the bracket end surface 61a, and the graduation at the bracket end surface 61a position is set in the left-right tilt amount of the reflector 4. Is meant to be represented.

The scale forming position of the display rod 68 is a position facing the upper side wall of the front lens 6, and a non-step surface W through window W is formed in the region 6a of the front lens 6 corresponding to the scale reading point. The scale of the second inclination measuring device 60 can be read from above the side edge portion of the front lens through the observation window W.

Next, the procedure for adjusting the tilt measuring devices 50 and 60 when the headlamp is mounted on the vehicle body and the procedure for adjusting the irradiation angle of the headlamp after that will be described.

As a single headlamp, when the air bubble 56 of the level 50, which is the first inclination measuring device, reaches the zero point position 55 of the linear scale 54,
The vertical light distribution characteristics of the headlamp are in the proper position,
Zero point position 69 of the scale of the rod member 68 of the second inclination measuring device 60
The light distribution characteristic of the headlamp in the left-right direction is set to an appropriate position when a matches the position of the bracket end surface 61a. However, these first and second inclinometers
When the headlamp with the built-in 50 and 60 is mounted on the vehicle body, the scale display of each tilt measuring instrument does not come to the proper position due to various errors. Therefore, it is necessary to adjust the scales of the first and second inclinometers to appropriate states.

As a method for adjusting the scale, in the first inclination measuring device or the level device 50, the vehicle body and the optical elimer are made to face each other, and the adjusting screws 20 and 30 are rotated to operate the optical axis l of the headlamp. Match the axle. At this time, the bubble position may not coincide with the zero point position 55 of the scale 54 due to variations in the lamp mounting surface on the vehicle body side. Then, in such a case, the screw 58 is turned so that the bubble 56 is moved to the zero point position of the scale.
Adjust to come to 55. In this way, when the vertical irradiation angle of the headlamp is at a proper position, the bubble 56 of the spirit level 50, which is the first inclination measuring device, is adjusted so as to display the zero point 55 of the scale.

On the other hand, also in the second inclination measuring device 60, when the headlamp is mounted on the vehicle body, the end face 61a position as the reference point and the scale zero point 69a position do not coincide with each other due to variations in the lamp mounting surface on the vehicle body side. Therefore, the scale 69 of the second inclination measuring instrument
A mark M is attached to a position aligned with the reference end surface 61a of the mark M, and this mark M is used as a scale zero point position. Not necessarily the reference end face 61a
Even if is not matched with the original zero point position 69a, the amount of displacement of the reflector 4 appears as the amount of displacement of the display rod 68 with respect to the reference end face 61a. In this way, when the irradiation angle of the headlamp in the left-right direction is at a proper position, the reference end surface 61a of the second inclination measuring device 60 is
The mark (zero point) M newly set at the position is adjusted to match.

After that, the user adjusts the irradiation angle of the headlamp. Then, looking inside the headlamp through the viewing window W from above the upper side wall of the front lens 6, the bubbles of the level instrument 50, which is the first inclination measuring device, are displaced from the zero point position 55 of the scale, or the second inclination measuring device 60. If the scale of the reference end face 61a position does not indicate the zero mark M position, the vertical or horizontal tilt amount of the lamp body, that is, the vertical or horizontal irradiation of the headlamp is determined from these deviation amounts. The angle deviation can be read. Then, in such a case, the adjusting screw 20 or 30 is rotated, respectively, and in the level instrument 50 which is the first inclination measuring instrument, the second inclination measuring instrument is arranged so that the bubbles come to the scale zero point 55 position. At 60, the zero mark M is adjusted so as to come to the position of the reference end face 61a. In this way, the vertical or horizontal irradiation angle of the headlamp can be adjusted.

FIG. 8 shows another embodiment of the second tilt measuring device for measuring the tilt of the reflector about the vertical axis Ly.

In the inclination measuring device 70 shown in this figure, the displacement expansion transmission mechanism 75
Is characterized by being composed of a combination of a rack and gears. Others are substantially the same as those in the first embodiment,
The same members are designated by the same reference numerals and the description thereof is omitted.

The displacement amount increasing transmission mechanism 75 is vertically supported by the bracket 61, and has two large and small gears (small gear 72a, large gear 72
b) is formed on the side surface of the sliding rod 64, which is coaxially integrated with the rack 74, which meshes with the small diameter gear 72a, and on the side surface of the displacement amount magnifying display rod 68. The rack 76 meshes with the large diameter gear 72b. The gear ratio of the large gear and the small gear is n ₂ / n _{1 when the} number of teeth of the small diameter gear 72a is n ₁ and the number of teeth of the large diameter gear 72b is n ₂ (> n ₁ ).
Therefore, the sliding amount of the sliding rod 64 is enlarged by n ₂ / n ₁ times in the displacement amount enlarged display rod 68. Reference numeral 62 is a plug member forming a compression coil spring accommodating portion.

FIG. 9 shows still another embodiment of the second inclination measuring device.

The displacement amount increasing transmission mechanism 82 of the inclination measuring device 80 shown in this figure is
One gear 83 vertically supported on the bracket 61,
A rack 74 formed on the side surface of the sliding rod 64 and meshing with the gear 83, and a pointer 84 that is also mounted on the shaft of the gear 83 and is a displacement amount magnifying display member. When the radius of the gear 83 is r and the length of the pointer 84 is l ₃ , the sliding amount of the sliding rod 64 is enlarged by l ₃ / r times at the tip of the pointer 84. Further, below the pointer 84, a scale plate plate 86 provided with a scale 87 is arranged so as to be fixed to the bracket 61. The scale 87 is formed so as to correspond to the movement locus of the tip of the pointer, and by reading the scale pointed by the pointer 84, the horizontal inclination of the irradiation angle of the headlamp can be known.

7 and 8, the scale 69 and the scale measurement reference point (reference end face 61a) formed on the display rod 68 are not limited to the positions shown in the drawings, and the display rod 68 and the bracket 61 can be arbitrarily set. It may be formed at a relative sliding portion position, which is readable. Also, the guideline in Fig. 9
The arrangement direction of 84 and the plate arrangement direction of the scale plate 86 are not limited to the positions shown in this figure.

FIG. 10 is a plan view of a headlamp which is another embodiment of the present invention.

In the above-described embodiment (see FIGS. 1 to 9), the front end portion of the reflector 4 and the upper edge portion of the front surface 6 lens are separated from each other, but are arranged to overlap in the vertical direction. The first inclination measuring device 50 and the second inclination measuring device 60 (7
0,80) is arranged, and a peep window W, which is an area where no step is formed, is provided at the upper edge of the front lens 6, and the scale of the tilt measuring instrument 50,60 (70,80) is read from this peep window W. However, in this embodiment, the first and second inclination measuring devices 50 and 60A are provided at the reflector upper surface wall position corresponding to the upper surface wall of the lamp body, and the transparent observation window W is formed in the lamp body 4. Then, the scales of the first and second inclination measuring instruments 50 and 60A are read from the sight window W. The arrangement of the sliding rod 64 and the displacement amount enlarged display rod 68 in the inclination measuring device 60A is the reverse of the arrangement of the sliding rod 64 and the display rod 68 in the measuring device 50 shown in FIG.

FIG. 11 shows an embodiment in which the present invention is applied to a unit movable headlamp in which a reflector is integrated with the inner peripheral surface of the lamp body.

In the horizontal plane including the horizontal axis Lx of the upper wall 102a of the lamp body 102, the level indicator 50, which is the first inclination measuring device for measuring the vertical inclination of the lamp body / reflector unit, and the horizontal direction of the lamp body / reflector unit. A second inclination measuring device 60 is provided for measuring the inclination of each. The second inclination measuring device 60 is assembled to the holding member 110 attached to the lamp housing 100, and the sliding rod 64
Is urged against a vertical wall 104 protruding from the upper wall 102a of the lamp body. The rod contact surface 104a of the vertical wall 104 is a curved surface centered on the horizontal axis Lx, and is not affected by the vertical tilt of the lamp body. Also the first
The level 50, which is a tilt measuring instrument, is installed on the upper wall of the lamp body.
It is fixed to 102a by screws 58a and 59b. Also the first
The graduation reading points of the second inclination measuring devices 50 and 60 are provided at a position which is easier to see than above the headlamp. Note that reference numeral 104
Is a valve socket, and 147 is a locking cap for fixing the valve socket 140 in the socket hole.

The other configurations are the same as those of the movable reflector type described above, and the description thereof will be omitted by giving the same reference numerals.

[Effect of device]

As is clear from the above description, in the automobile headlamp according to the present invention, the sliding member of the tilt measuring device slides due to the tilting of the reflector (the lamp body / reflector unit in the movable unit type) about the vertical axis. Then, the sliding amount (displacement amount) of this sliding member is mechanically enlarged by the displacement amount enlargement transmission mechanism and transmitted to the displacement amount enlargement display member, and the relative position of the displacement amount enlargement display member with respect to the fixed side reference point is determined by the head. Since the deviation of the irradiation angle in the left and right direction of the lamp is enlarged, the deviation amount can be read through the viewing window in the movable reflector type, and this deviation amount can be read directly in the movable unit type. It is very easy to read the misalignment. Further, since the shift amount is enlarged and shown, the shift amount can be read accurately and accurately.

[Brief description of drawings]

1 is a front view of a movable reflector type headlamp, FIG. 2 is a plan view thereof, FIG. 3 is a sectional view taken along line III-III shown in FIG. 1, and FIG. 4 is line IV shown in FIG. -IV is a cross-sectional view, FIG. 5 is a vertical cross-sectional view of the mounting portion of the spirit level that is the first tilt measuring instrument, and FIG. 6 is a vertical cross-sectional view of the second tilt measuring instrument.
FIG. 8 is a perspective view of a second tilt measuring device for measuring the tilt of the reflector in the left-right direction, FIG. 8 is a perspective view of another embodiment of the second tilt measuring device, and FIG. 9 is a second tilt measuring device. FIG. 10 is a perspective view of still another embodiment of the present invention, FIG. 10 is a plan view of a headlamp of another embodiment of the present invention, and FIG. 11 is an embodiment in which the present invention is applied to a unit movable type headlamp. It is a horizontal sectional view. Lx …… horizontal axis, Ly …… vertical axis, 2,102 …… lamp body, 4 …… reflector, 6 …… front lens, 50 …… first level measuring instrument, level, 60,70,80 …… The second tilt measuring instrument that measures the tilt of the headlamp's left-right irradiation angle, 63 ... compression coil spring, 64 ... sliding rod,
65 …… Displacement amount enlargement transmission mechanism which is a lever type swing lever mechanism, 68 …… Displacement amount enlargement display rod, 69,87 …… Scale, 72
…… Displacement expansion transmission mechanism consisting of gear and rack, 82 ……
Displacement expansion transmission mechanism consisting of gear, rack and pointer, 10
0 …… Lamp housing, M …… mark, W …… Peep window.

Claims (2)

[Scope of utility model registration request] 1. A reflector movable type automobile headlamp in which a reflector is supported in a lamp body so as to be tiltable about a vertical axis and a horizontal axis, respectively, wherein a vertical axis of the reflector is provided between the lamp body and the reflector. An inclination measuring device for measuring the inclination of the reflector is installed, and the inclination measuring device is arranged in the front-rear direction with the tip end abutting against the back side of the reflector by being biased by a spring, and the vertical axis of the reflector. A sliding member that slides in conjunction with tilting around, a displacement magnifying transmission mechanism that mechanically magnifies and transmits the displacement amount of the sliding member, and a sliding member that is connected to the displacement magnifying transmission mechanism. The displacement amount magnifying display member is displaced relative to the fixed side reference point by an amount corresponding to the magnified displacement amount of the member, and the magnified displacement amount is read on the lamp body or the front lens. Vehicle headlight, characterized in that the formed transparent viewing window of the eye are formed. 2. A movable unit headlamp for a vehicle, wherein a lamp body / reflector unit in which a reflector is integrated in a lamp body is supported in a lamp housing so as to be tiltable about a vertical axis and a horizontal axis, respectively. Between the lamp housing and the lamp body / reflector unit, an inclination measuring device for measuring the inclination of the lamp body / reflector unit about the vertical axis is installed. This inclination measuring device is biased by a spring. The sliding member is arranged in the front-rear direction with the tip end in contact with the back side of the lamp body and slides in conjunction with the tilting of the lamp body / reflector unit around the vertical axis. A displacement magnifying transmission mechanism that mechanically magnifies and transmits, and a sliding member that is connected to the displacement magnifying transmission mechanism A headlamp for an automobile, comprising: a displacement amount enlargement display member that is displaced by a displacement amount corresponding to a fixed displacement reference point.