JPH026726A - Inclination measuring device for head lamp for automobile - Google Patents

Abstract

PURPOSE:To confirm the presence and existence of the deviation of the irradiation angle of a head lamp by providing a reflector separately from a lamp body in a lamp body. CONSTITUTION:In the reflector variable type head lamp, a 1st inclination measuring device 40 is constituted of a supporting member provided protrusively to the outside of the lamp body 2 of the head lamp and a rod member 46 which is supported by the supporting member, pierces the lamp body 2 and slides in an axial direction in response to the tilt of the reflector 4 in a left-and-right direction because one end part is energized to abut on the back surface of the reflector 4. The inclination of the head lamp in the left-and-right direction is measured from the position of the rod member 46 with respect to the lamp body 2. A 2nd inclination measuring device 80 is constituted of a main body 83 having a part to be held whose shape is same as a part held by the reflector 4 out of base part 52 of a lamp bulb with a base attached to the reflector 4 and a level 90 supported by the main body 83. The above- mentioned device is attached to the reflector 4 instead of the lamp bulb with the base so as to measure the inclination of the head lamp in the up-and-down direction if necessary.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a measuring device that can easily measure how much the irradiation angle of an automobile headlamp is tilted in the vertical and horizontal directions from its normal position. In other words, the present invention relates to an automobile headlamp inclination measuring device that can easily measure the vertical and horizontal inclinations of members related to the irradiation angle of the headlamp.

[Prior art]

The headlamp is equipped with an aiming mechanism that allows tilt adjustment around a predetermined horizontal axis and a vertical axis, and this aiming mechanism allows the irradiation direction of the headlamp, the so-called optical axis of the headlamp, to be adjusted within a predetermined range. (hereinafter referred to as aiming adjustment)
has been done.

To adjust the aiming of the headlamp, the headlamp is actually turned on in a dark room, and the irradiation spot on the screen is adjusted so that it is at a predetermined position. It has become.

[Problems to be Solved by the Invention] However, the conventional aiming adjustment described above requires a large dark room, a large number of equipment such as a screen, and so on. Furthermore, aiming adjustment must be made without looking at the screen so that the illumination spoiler 1- of the headlamp is at a predetermined position, which poses another problem in that the adjustment process takes time.

In addition, headlamps used in the United States have three location bosses that serve as measurement reference surfaces protruding from the front lens, and a measuring device commonly called an aimer is placed in contact with these location bosses. , it is designed to measure whether the headlamp is tilted with respect to the horizontal plane. In other words, when the car is in a horizontal state, the front end surface of the location boss is formed to be a vertical surface, and if the aimer is set using the front end surface of the location boss as the contact reference surface, the headlamp will be aligned with respect to the horizontal surface. The amount of inclination can be measured. The value measured by the aimer (the amount of inclination) is required to be within a predetermined range. Therefore, a location boss must be formed in a headlamp for the United States, and there is also the hassle of having to independently manufacture a headlamp for the United States separately from headlamps for Japan and Europe.

The present invention has been made in view of the problems of the prior art,
The purpose of this is to create a simple configuration 1c that does not require any darkroom, screen, aimer, or other large-scale equipment, and allows anyone to easily check whether there is an error in the beam angle of the headlamp. An object of the present invention is to provide an automobile headlamp inclination measurement device that can adjust the irradiation angle of the headlamp.

[Means to solve the problem]

Automobile headlamps have a reflector inside the lamp body that is separate from the lamp body, and the reflector can be tilted or adjusted. There are two types: a movable unit type that adjusts the tilting of the lamp body itself.

In order to achieve the above object, the present invention takes the following measures.

That is, in the headlamp L of the movable reflector type, there is a support member that protrudes from the outside of the lamp body of the headlamp, and a support member that is supported by the support member and passes through the lamp body, and one end is on the back side of the reflector. a rod member that is biased into contact with the reflector and slides in the axial direction according to the tilting of the reflector in the left-right direction, and a first inclination that measures the left-right inclination of the headlamp from the position of the rod member with respect to the lamp body; A measuring instrument, a main body having a held part having the same shape as the held part held by the reflector among the cap parts of a light bulb with a cap attached to a reflector, and a spirit level supported by this main body. The present invention is characterized in that it comprises a second inclination measuring device which is attached to a reflector in place of the bulb with a base to measure the inclination of the headlamp in the vertical direction, if necessary.

In addition, in a movable unit type headlamp, there is a support member that protrudes from the headlamp mounting surface on the vehicle body side, and one end is supported by this support member and is urged into contact with the outer surface of the lamp body. A first inclination measuring device, which is comprised of a rod member that slides in the axial direction in response to the tilting in the left and right direction, and measures the inclination of the headlamp in the left and right direction from the position of the rod member with respect to the headlamp mounting surface on the vehicle body side. and a main body having a held part having the same shape as a held part held in the lamp body among the cap parts of a light bulb with a cap attached to the lamp body, and a spirit level supported by this main body, The present invention is characterized in that it comprises a second inclination measuring device which is attached to the lamp body in place of the bulb with a base to measure the vertical inclination of the headlamp, if necessary.

[Effect]

In a headlamp with a movable reflector (unit), the horizontal inclination of the reflector (lamp body) is the amount of axial movement of the rod member in the first inclination measuring device, and the lamp body ( The amount of inclination of the headlamp in the left-right direction can be read from the position of the rod member relative to the headlamp mounting surface on the vehicle body side.

In addition, if a second inclination measuring device is attached to the reflector (lamp body) instead of the bulb with a base, the vertical inclination of the reflector (lamp body) can be measured on the level, and the level can be used to measure the headlamp. It is possible to read the amount of vertical inclination.

In order to correct the inclination of the headlamp, aiming adjustment is performed so that the measured values of the first inclination measuring device and the second inclination measuring device are respectively zero.

〔Example〕

Next, embodiments of the present invention will be described based on the drawings.

1 to 11 show an embodiment of the inclination measuring device according to the present invention, and FIG. 1 shows a headlamp (reflector-movable 2 is a horizontal sectional view, 3 is a longitudinal sectional view, 4 is a horizontal sectional view of the first inclination measuring instrument, 5 is a vertical sectional view, and 6 is a front view of the first inclination measuring device. The figure is a perspective view showing the assembled state of the first inclination measuring device, FIG. 7 is a vertical cross-sectional view of the contact surface of the tip of the rod member of the first inclination measuring device, and FIG. 8 is a perspective view of the light bulb = 7- Figure 9 is a perspective view of the area around the headlamp bulb mounting hole, Figure 10 is a perspective view of the locking cap, and Figure 11 is a perspective view of the area around the headlamp bulb mounting hole.
The figure is a perspective view of the second inclinometer.

First, in FIGS. 1 to 3, reference numeral 2 denotes a container-shaped lamp body, into which a reflector 4 is assembled.Furthermore, a front lens 6 is assembled into the rectangular front opening of the lamp body 2. Integrated as a lamp.

As shown in FIGS. 2 and 3, the reflector 4 is supported at three points: a ball joint 10 and an adjustment screw 20.30. The ball portion 12 side of the ball joint 10 is
The reflector 4 is supported on the lamp body 2 side and can swing around this ball joint 10. Further, the adjusting screws 20.30 are both rotatably supported by the lamp body 2, and are screwed into nuts 22.32 on the reflector 4 side, respectively.
By turning 30, the nut 22.32 is moved back and forth along the adjusting screw 20.30, thereby changing the inclination of the reflector 4. Note that reference numeral 14 is a socket that supports the soil portion 12, and is fixedly supported by a bracket 16 fixed to the back side of the reflector 4.

Further, the beams 26 and 36 are brackets fixed to the back surface of the flaper 4, and support nuts 22 and 32 into which the adjustment screws 20 and 30 are screwed.

Code 24.34 is a compression coil spring, code 27.3
7 is an O-ring, and 28.38 is a flange portion protruding from the adjustment screw.

Further, the support point of the lifter 4 by the adjusting screw 20 (the threaded part of the adjusting screw 20 and the nut 22) is as follows:
Located on the horizontal axis Lx that is perpendicular to the optical axis Q and passes through the ball joint 10, the support point of the reflector 4 by the adjustment screw 30 (the screwed part of the adjustment screw 30 and the nut 32) is
It is located on a vertical axis Ly that is perpendicular to the optical axis Ω and passes through the ball joint 10. Therefore, by rotating the adjustment screw 20, the reflector 4 swings around the vertical axis Ly, and the horizontal inclination of the reflector 4, that is, the horizontal illumination angle of the headlamp can be adjusted.

On the other hand, by rotating the adjustment screw 30, the reflector
4 swings around a horizontal axis Lx perpendicular to the vertical axis Ly, and can adjust the vertical inclination of the reflector 4, that is, the vertical illumination angle of the headlamp. Like this 2
Reflector-4 by adjustment screw 20.30
It is now possible to adjust the tilt of the headlamp, or in other words, the illumination angle of the headlamp.

In addition, in FIGS. 1 to 3, the reference numeral 3 indicates the lamp body 2.
A sealing agent 3a is loaded into the sealing groove 3, and the front lens 6 is sealed.
legs are engaged. Further, reference numeral 7 is a clip for mechanically fastening the front lens 6 and the lamp body 2.

In FIGS. 1, 2, and 4 to 7, reference numeral 40 denotes an inclination measuring device that measures the inclination of the reflector 4 in the left-right direction, that is, the inclination of the irradiation angle of the headlamp in the left-right direction.

Reference numeral 42 denotes a cylindrical outer casing that protrudes from the outside of the lamp body so as to surround the hole 41 formed in the lamp body 2, and is integrally molded with the lamp body 2. This outer casing 42 consists of a cylindrical part 42a on the base side and a weekday cylindrical part 42b whose side part is notched upward, and a transparent cylindrical inner casing 44 that penetrates the lamp body 2 is inside. They are coaxially assembled and integrated.

The inner casing region 44b corresponding to the outer casing semi-cylindrical portion 42b has a square pipe shape, and the outer casing cylindrical portion 4
A disk-shaped flange portion 44a that engages with the inner circumferential surface of the outer casing cylindrical portion 42a is formed in the inner casing region 44b corresponding to 2a, and an O-ring 43 is attached to the outer periphery of the flange portion 44a, and the inner and outer casing 44 , 42 is sealed. Furthermore, a small cylindrical part 44c that engages with the hole 41 of the lamp body is formed from this flange part 44a, and three engaging protrusions 44d are formed on the outer periphery of the tip of the small cylindrical part 44c.
is formed. This engagement protrusion 44d can engage with an engagement recess 41a formed on the inner peripheral surface of the hole 41 on the body side,
The inner casing 44 is engaged with the hole 41, and the engagement protrusion 44d
The inner casing 44 can be fixed to the lamp body 2 by passing the inner casing 44 through the hole 41 of the lamp body 2 and rotating the inner casing 44 with the inner casing 44 projecting inside the lamp body. Also, the outer casing semi-cylindrical part 42
Square pipe portion 44b which is the inner casing area corresponding to b
A reference line 45 (see FIG. 6) is attached to the side surface of the frame. A stepped rod 46 (see FIG. 4) that is slidable in the axial direction is inserted into the inner casing 44, and a compression coil spring 44 is inserted between the end surface of the large diameter portion 46a of the rod and the upper lid 49.
8 is interposed. The small diameter portion 46b of the stepped rod passes through the hole 41 of the lamp body 2, and as shown in FIG.
is in biased contact with.

The stepped rod 46, as shown in FIGS. 1 and 2,
It is arranged parallel to the optical axis Q and orthogonal to the horizontal axis Lx, and the contact point of the rod small diameter portion 46b to the bracket 26 is located near the horizontal axis Lx. and the fourth
As shown in the imaginary line in the figure, when the bracket 26 fixed to the reflector 4 changes its position by tilting the reflector in the left and right direction, the stepped iron 46 also moves in the axial direction in proportion to the amount of movement of the reflector 4. Its position is about to change. A scale 47 (see FIG. 4) is attached to the rod large diameter portion 46a in the axial direction, and when the reflector 4 is in a proper position where it is not inclined in the left-right direction, the reference point of this scale 47 is 47a is the reference line 4 on the inner casing side
5 (see FIG. 6). Therefore, from the amount of deviation between the scale 47 on the condo 46 side and the reference line 45 on the inner casing 44 side, the amount of inclination of the reflector 4 in the left-right direction, that is, the inclination of the irradiation angle of the headlamp in the left-right direction can be determined. .

As shown in FIG. 7, the abutment surface 27 at the tip of the rod small diameter portion 46b of the bracket 26 has a spherical shape centered at the intersection P1 of the Rondo axis and the horizontal axis Lx. The tip of the rond that comes into contact with the spherical surface is also spherical to match this spherical surface, and the reflector 4 is aligned with the horizontal axis L.
Even if the reflector 4 is rotated around x, that is, tilted in the vertical direction, the movement of the rod 46 in the axial direction is not affected. Therefore, the scale of the inclination measuring device 40 does not change depending on the vertical tilt adjustment of the reflector 4, and the scale of the inclination measuring device 40 changes only by adjusting the left and right tilting of the reflector 4. . Note that the rod stepped portion 46c acts as a stopper for preventing the rod 46 from falling off.

In FIG. 2 and FIG. 8, the reference numeral 50 is a light bulb;
The reflector 4 is attached to a light bulb attachment hole 5 (see FIG. 9) formed at the rear top of the reflector 4. As shown in FIG. 9, the light bulb attachment hole 5 of the reflector 4 includes a peripheral wall 5a that surrounds the rear top through hole of the reflector 4 and projects rearward;
An inner flange 5b formed on the front end side of the through hole, and three inner protrusions 5c protruding from the inner peripheral edge of this inner flange.
It is composed of. Reference numeral 5d denotes an outward protrusion protruding from the outer periphery of the protruding end of the peripheral wall 5a, and is for locking a locking cap 60, which will be described later.

The light bulb 50 includes a bulb 51 which is a light emitting source, and this bulb 5.
1. The cap part 52 has a cylindrical cap body 53 made of synthetic resin.
A flange portion 54 is circumferentially provided in the middle in the axial direction, and a connector portion 55 is located rearward from the flange portion 54 . A horizontal surface 55a is formed on the upper side surface of the connector portion 55, and a connector terminal (not shown) is protruded into the connector portion 55. Further, the region in front of the flange portion 54 of the mouthpiece body 53 has a cylindrical shape, and two step portions 53a and 53b are formed on the outer peripheral surface of the mouthpiece body 53.
It consists of a medium diameter part 57 in the middle and a large diameter part 58 on the flange side, and is a part that is held in the light bulb mounting hole 5. The medium diameter portion 57 is formed with a vertical slit 57a that axially engages with the inner protrusion 5c on the side of the light bulb mounting hole 5, and the large diameter portion 58 on the flange side is formed with an annular groove 58a. 0 ring 59 is attached.

To attach the light bulb 50 to the light bulb attachment hole 5, align the vertical slit 57a of the mid-longitudinal part with the inward protrusion 5C of the attachment hole, and push the light bulb 5o into the attachment hole 5.
4 is positioned in contact with the protruding end of the peripheral wall 5a. The mounting hole 5 and the light bulb 5° are sealed by a ring 59. Note that the flange portion 54 has a vertical slit 57a.
A notch 54a is formed at a position corresponding to the light bulb 5.
When inserting the light bulb 50 into the light bulb mounting hole 5 of 50°, the light bulb 50 can be inserted by aligning the notch 54a with the inner protrusion 5c of the mounting hole 5.

In FIGS. 2 and 10, the reference numeral 6o indicates the light bulb 50
This is a locking cap for fixing the light bulb to the light bulb mounting hole 5 of the reflector 4.

The locking cap 60 has a cylindrical portion 61 that can be engaged with the outer periphery of the annular peripheral wall 5a around the light bulb attachment hole 5. A flange retainer 64 that protrudes radially inward is provided at a constant pitch in the circumferential direction at a midpoint in the axial direction of the inner peripheral surface of this cylindrical portion 61, and at a front end of the inner peripheral surface of this cylindrical portion 61. ,
A slide protrusion 62 is formed to engage with an outer protrusion 5d formed on the outer periphery of the annular peripheral wall 5a. And 50 light bulbs
After inserting the locking cap 60 into the mounting hole 5,
is placed on the outer periphery of the annular peripheral wall 5a, and when the locking cap 60 is turned to engage the sliding projection 62 with the peripheral wall side outer projection 5d, the flange presser 64 and the protruding end of the peripheral wall 5a are connected to the flange portion 54 of the base body 53. is clamped, and the light bulb 50 is thus fixed in the light bulb attachment hole 5.

In addition, as shown in FIGS. 2 and 9, the reflector 4
A second annular peripheral wall 5e is formed protrudingly around the annular peripheral wall 5a, and a donut-shaped rubber cover 7 is provided between the second peripheral wall 5e and the opening peripheral edge 2a of the lamp body 2.
0 is attached to close the gap between the reflector 4 and the peripheral edge of the lamp body opening. An outer flange 66 is provided around the front end of the locking cap 60, and when the locking cap 60 is attached, the outer flange 66 presses the inner peripheral edge 71 of the rubber cover 70 against the protruding end of the annular peripheral wall 5e. It has become. For this reason, rainwater, etc. leaks from the back side of the lamp body 2.
There is no problem that would cause it to get inside. Reference numeral 68 denotes a rib extending radially from the outer periphery of the cylindrical portion 61, and functions as a handle to facilitate attachment and detachment of the locking cap 60.

In FIG. 11, reference numeral 80 is an inclination measuring device that is used by being attached to the light bulb attachment hole 5 of the reflector 4. code 8
Reference numeral 3 denotes a cylindrical cap body, and a horizontal surface 82a, which is the same as the horizontal surface 55a of the connector portion 55 of the light bulb 50, is formed on the rear upper side surface of the cap body 83, and a spirit level 90 is fixed thereto to adjust the cap. It is integrated into the main body 83. Level 9
0 is a straight type bubble tube in which a liquid and bubbles 91 are sealed in a glass tube, and a linear scale 92 is marked on the surface, and the linear scale 92 is arranged so as to extend in the axial direction.

The other parts have exactly the same external structure as the base body 53 of the light bulb 50, and are given the same reference numerals, and the explanation thereof will be omitted.

To use this inclination measuring device 80, remove the light bulb 50 from the light bulb attachment hole 5 of the reflector and attach this inclination measuring device 80 in its place. The procedure for installing the inclinometer 80 is exactly the same as the procedure for installing the light bulb 5o. And light bulb mounting hole 5
When the inclination measuring device 80 is attached to the position, the spirit level 9o is exactly at the upper position.

When the headlamp is oriented in the correct vertical direction, that is, when the headlamp is not tilted vertically, the bubble 91 of the spirit level 90 is at a predetermined position on the linear scale 92, and the reflector 4 If the headlamp is tilted in the vertical direction, that is, if the headlamp is tilted in the vertical direction, the bubble 91 and the linear scale 92 are shifted by the amount of tilt of the headlamp.

In this manner, the inclination measuring device 80 makes it possible to easily check the vertical inclination state of the reflector 4 (the vertical inclination state of the headlamp).

Also, if the headlight is tilted vertically,
Anyone can easily adjust the vertical illumination angle of the headlamp by rotating the adjustment rod 30 and tilting the reflector 4 around the horizontal axis Lx so that the bubble of the 9° level is at the specified position. It can be performed.

12 to 16 show a second embodiment of the present invention, in which FIG. 12 is a vertical cross-sectional view of a movable unit type headlamp, FIG. 13 is a horizontal cross-sectional view thereof, and FIG. 1st
15 is a horizontal sectional view of the inclination measuring device shown in FIG.
FIG. 6 is a perspective view of the locking cap.

In these figures, the headlamp is constructed by assembling a front lens 106 on the front surface of a container-shaped lamp body 102, and a beam flap 104 is integrally formed on the inner peripheral surface of the lamp body 102. Reference numeral 103 is a seal groove, and 103a is a sealant.

The lamp body 102 is supported with respect to the vehicle body 100 by three points: a ball joint 110 and adjustment screws 120 and 130. Ball joint 110, adjustment screw 12
0 and 130 correspond to the ball joint 10 and adjustment screws 2o and 30, respectively, in the first embodiment. Then, adjust the lamp body 1 by adjusting the adjusting screw 120.
By tilting 02 around the vertical axis Ly, the horizontal illumination angle of the headlamp can be adjusted, and by tilting the lamp body 1'02 around the horizontal axis Lx using the adjustment screw 130, the vertical illumination angle of the headlamp can be adjusted. can be adjusted. Code 122. '132 is a bearing to which the adjustment screws 120 and 130 are screwed together, and
The adjustment screws 120 and 130 move back and forth without turning as the adjustment screws 120 and 130 rotate. The distal ends of the adjusting screws 120, 130 are formed with soil portions 124, 134, and the socket portions 126, 136 on the bracket side form a ball joint structure. Reference numeral 112 is the base portion of the ball joint 110. These ball joint 110, adjustment screw 120,1
The configuration and function of the valve 30 are substantially the same as those of the ball joint 10 and the adjustment screws 20 and 30 of the first embodiment described above, and detailed explanation thereof will be omitted.

Reference numeral 140 is an inclination measuring device that measures the inclination of the irradiation angle in the left-right direction of the headlamp.

Reference numeral 142 denotes a cylindrical outer casing, and a vehicle body side flange portion 142a is fixed to the vehicle body 100. The outer casing 142 has a semi-cylindrical part 14 whose side part opens upward.
2b, and a square pipe-shaped transparent inner casing 144 is coaxially arranged inside the outer casing 142. The inner casing 144 has a flange portion 1 on the vehicle body side.
44a is clamped by a flange portion 142a of the outer casing and integrated into the outer casing 142.

A stepped rod 146 that is slidable in the axial direction and includes a large diameter portion 146a and a small diameter portion 146b is inserted into the inner casing 144. A compression coil spring 148 is interposed between the large-diameter rod portion 146a and the vehicle body 100, and the small-diameter rod portion 146b passes through the lid 149, with its tip abutting against the outer surface of the lamp body 102. There is. A reference line 145 (see FIG. 13) is provided on the inner casing 144, and a scale 147 (14th mark) is provided on the rod large diameter portion 146a.
(see figure) are formed respectively, and the lamp body (
The horizontal inclination of the headlamp (headlamp) can be read from a reference line 145 and a scale 147.

Note that the contact surface 127 of the rod tip on the lamp body 102 side
As in the case of the inclination measuring device 40 of the first embodiment described above, has a spherical shape centered on the intersection of the axis of the rod and the horizontal axis Lx, and has a lamp body (headlamp).
Even if the tilt measuring device 140 is tilted in the vertical direction, the tilt measuring device 140 is not affected by the tilt.

In FIG. 15, reference numeral 105 indicates the lamp body 102.
The light bulb 50 is attached to the light bulb attachment hole 105 formed in the light bulb attachment hole 105. In the first embodiment described above, the light bulb mounting hole 5 is formed in the reflector 4, whereas in this embodiment, it is formed in the lamp body 102. The shape of the light bulb mounting hole 105 is exactly the same as the shape of the light bulb mounting hole 5 of the first embodiment, and the same constituent parts (24-) will be given the same reference numerals and their explanation will be omitted.

In FIGS. 13 and 16, reference numeral 160 is a locking cap for fixing the light bulb 50 to the light bulb attachment hole 105. This locking cab 160 is also substantially the same as the locking cap 60 in the first embodiment described above.
Only the different points will be explained, and the others will be given the same reference numerals, and their explanation will be omitted. code 164
is an inner flange that presses the side surface of the flange portion 54 on the light bulb side.

Further, in the first locking cap 60 described above, an outer flange 66 was formed at the front end as a rubber cover holder, but in this embodiment, a rubber cover 76 is formed on the headlamp.
Since there is no member corresponding to 0 (unnecessary), there is no front end outer flange, and the structure is such that no rib 68 as a handle is provided.

Further, the inclination measuring device 80 shown in FIG. 11 can be used by being attached to this light bulb attachment hole 105. That is, the inclination measuring device 80 can be used not only for a headlamp of a movable reflector type but also for a headlamp of a movable unit type.

〔Effect of the invention〕

As is clear from the above description, in the reflector movable type headlamp (unit movable type headlamp) according to the present invention, the horizontal inclination of the reflector (lamp body) is determined by the rod in the first inclination measuring device. This is the amount of movement of the member in the axial direction, and the amount of inclination of the headlamp in the left-right direction can be read from the position of the rod member with respect to the lamp body (headlamp mounting surface on the vehicle body side).

In addition, if a second inclination measuring device is attached to the reflector (lamp body) instead of the bulb with a base, the vertical inclination of the reflector (lamp body) can be measured on the level, and the level can be used to measure the headlamp. It is possible to read the amount of vertical inclination.

Therefore, in the vehicle headlamp inclination measuring device according to the present invention, it is possible to easily check whether there is any deviation in the illumination angle of the headlamp with a simple configuration.

Further, in order to correct the inclination of the headlamp, aiming adjustment may be performed so that the measured values of the first inclination measuring device and the second inclination measuring device are respectively zero.

Therefore, anyone can easily adjust the illumination angle of the headlamp.

[Brief explanation of the drawing]

Fig. 1 is a front view of a movable beam flap type headlamp, Fig. 2 is a partially cutaway plan view, Fig. 3 is a sectional view taken along the line ■-■ shown in Fig. 1, Fig. 4 The figure is a horizontal sectional view of the first inclination measuring device, and Figure 5 is the line ■-■ shown in Figure 4.
6 is a perspective view showing the assembled state of the first inclination measuring device, FIG. 7 is a longitudinal sectional view of the contact surface of the rod tip of the first inclination measuring device, and FIG. Figure 9 is a perspective view of the light bulb installation hole, Figure 10 is a perspective view of the locking cap, Figure 11 is a perspective view of the second inclination measuring device, Figure 12 is a perspective view of the unit movable. Fig. 13 is a horizontal sectional view of a headlamp of this type, Fig. 14 is a horizontal sectional view of the first inclination measuring device, Fig. 15 is a perspective view of a light bulb mounting hole formed in the lamp body, and Fig. 14 is a horizontal sectional view of the headlamp. FIG. 16 is a perspective view of the locking cap. 2.102... Lamp body, 4.104... Reflector 6,106... Front lens, 10.110... Ball joint, 20.120... Left and right direction of illumination angle of headlamp Screw 30.130 for adjusting the inclination.Screw 40.140 for adjusting the vertical inclination of the headlamp irradiation angle.First inclination #JfJ meter for measuring the horizontal inclination of the headlamp irradiation angle. ,42.142...
・Outer casing that constitutes a part of the support member of the sliding rod member, 44.144...Inner casing that constitutes a part of the support member of the sliding rod member, 46.146...Sliding Stepped rod, 48.14
8... Compression coil spring, 50... Light bulb, 52... Base portion, 53.83... Base body, 80... Second inclination for measuring the vertical inclination of the irradiation angle of the headlamp. Measuring instrument, Lx...Horizontal axis, Ly...Vertical axis, Q...Optical axis. Patent applicant: Koito Manufacturing Co., Ltd.

Claims (2)

[Claims] (1) A support member protruding from the outside of the lamp body of the headlamp, which is supported by the support member and passes through the lamp body, and one end is biased against the back surface of the reflector to prevent the reflector from tilting in the left-right direction. a first inclination measuring instrument that measures the horizontal inclination of the headlamp from the position of the rod member relative to the lamp body; Consists of a body that has a held part of the base that has the same shape as the held part that is held by the reflector, and a spirit level supported by this body, which can be attached to the reflector in place of a light bulb with a base if necessary. and a second inclination measuring device for measuring the vertical inclination of the headlamp. (2) A support member protrudes from the headlamp mounting surface on the vehicle body side, and is supported by this support member so that one end is biased into contact with the outer surface of the lamp body, and the support member is supported by the support member and is pressed against the outer surface of the lamp body. a first inclination measuring device comprising a rod member that slides in the axial direction and measuring the inclination of the headlamp in the left-right direction from the position of the rod member with respect to the headlamp mounting surface on the vehicle body side; It consists of a main body that has a held part that has the same shape as the held part held in the lamp body, and a spirit level supported by this main body. An automobile headlamp inclination measuring device comprising a second inclination measuring device which is attached to the lamp body instead and measures the vertical inclination of the headlamp.