JP2610547B2 - Vehicle lighting - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel vehicular lamp. More specifically, in a vehicle lamp equipped with a main reflecting mirror whose irradiation axis is directed substantially forward and an auxiliary reflecting mirror whose irradiation axis can be tilted substantially in the horizontal direction, when the auxiliary reflecting mirror is directed sideways, In this case, it is possible to irradiate a portion closer to the vehicle, that is, a portion closer to the vehicle than when the player is facing the vehicle.

[0002]

2. Description of the Related Art Some automotive lamps include a main reflecting mirror whose irradiation axis is directed substantially forward and an auxiliary reflecting mirror whose irradiation axis can be tilted substantially in the left-right direction.

In such a lamp, the auxiliary reflector is normally tilted in response to the operation of the handle, and the auxiliary reflector is tilted by a direction and an angle corresponding to the direction and amount of turning of the handle. It is used as a so-called cornering lamp capable of irradiating a road surface on which a vehicle is turning.

[0004]

By the way, in the above-mentioned conventional vehicle lamp, since the tilting axis of the auxiliary reflector is substantially in the vertical direction, the light reflected by the auxiliary reflector is directed forward. The distance illuminated by the road surface does not change when the vehicle is turned or when turned sideways.

However, when the reflected light is radiating to the side, the vehicle is curving, so the speed is reduced, and it is necessary to irradiate a near road surface rather than a distant road surface. Conventional vehicle lamps could not meet the requirements of that area.

[0006]

In order to solve the above-mentioned problems, the vehicle lamp of the present invention has a tilting axis of the auxiliary reflecting mirror inclined backward with respect to a vertical axis.

[0007]

Therefore, in the vehicle lamp according to the present invention, the irradiation axis is lowered as the auxiliary reflecting mirror is directed to the side, so that when the vehicle curves, the front side of the road surface is irradiated. Can be done.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a vehicular lamp according to a first embodiment of the present invention.

Reference numeral 2 denotes a lamp body fixed to the vehicle body, which is formed of a synthetic resin and has a recess 3 facing forward. Then, a lens 4 is attached to the lamp body 2 so as to cover the front opening thereof, whereby a lamp space 5 surrounded by the lamp body 2 and the lens 4 is formed.

Reference numeral 6 denotes a main reflecting mirror disposed in the lamp space 5, which has a horizontally long shape when viewed from the front, and a reflecting surface 7 of which is substantially a paraboloid of revolution. And the reflection surface 7
Is directed substantially forward.

Further, flat portions 8 and 9 projecting substantially forward from both upper and lower edges of the main reflecting mirror 6 are integrally formed, and a bearing cylinder portion is provided substantially at the center of the lower flat portion 9. 10 is fixed. The axis 11 of the bearing cylinder 10 passes through the irradiation axis 12 of the main reflecting mirror 6 and is perpendicular to the vertical line 13.
Incline backwards, that is, displaced backwards upward
In addition, it is slightly inclined, for example, by about 3 degrees.

Reference numeral 14 denotes a light bulb attached to a substantially central portion of the main reflecting mirror 6, and its light emitting portion 14a (filament) is arranged at a substantially focal position of the main reflecting mirror 6.

Reference numeral 15 denotes a rotating shaft which is rotatably inserted into the above-mentioned bearing cylinder portion 10, and its upper and lower ends project from upper and lower ends of the bearing cylinder portion 10, respectively.

Reference numeral 16 denotes an auxiliary reflecting mirror, which includes a reflecting portion 17 and a supporting portion 18 projecting forward from a lower edge of the reflecting portion 17.
Are formed integrally, and a substantially central portion of the support portion 18 is fixed to an upper end portion of the rotating shaft 15. The reflecting surface of the reflecting portion 17 has a substantially paraboloid of revolution shape, and its irradiation axis is parallel to the irradiation axis of the main reflecting mirror 6 when facing forward, and its focal point is at the focal position of the main reflecting mirror 6. It is located.

Reference numeral 19 denotes a drive unit, which is disposed on the lower side of the lamp space 5 and which is connected to the output shaft 2 from the lower end of the case 20.
1 is protruding. The output shaft 21 is configured to transmit the output of a motor (not shown) disposed in the case 20 via a speed reduction mechanism.

Reference numeral 22 denotes a connecting piece whose base end is fixed to the output shaft 21 of the drive unit 19, and reference numeral 23 denotes a connecting piece whose base end is fixed to the lower end of the rotary shaft 15. Reference numeral 24 denotes a connection link, and both ends thereof are rotatably connected to the rotation ends of the connection pieces 22 and 23, respectively.

When the motor of the drive unit 19 is driven, the rotation is reduced and transmitted to the output shaft 21, and the connecting piece 22 is rotated, which is transmitted to the connecting piece 23 via the connecting link 24, Therefore, the rotation shaft 15 is rotated.

When the rotating shaft 15 rotates, the auxiliary reflecting mirror 16 fixed to the upper end thereof is rotated, and the irradiation axis is changed right and left.

When the auxiliary reflecting mirror 16 is tilted to the side, the axis of the rotating shaft 15 (the axis 1 of the bearing cylinder 10) is rotated.
Same as 1. ) Is tilted rearward with respect to the vertical line 13, so that the irradiation axis is displaced downward as it tilts laterally. Accordingly, the more the auxiliary reflecting mirror 16 is tilted to the side, the more the front side is illuminated.

Therefore, if the auxiliary reflecting mirror 16 is tilted to the left and right in response to the operation of the steering wheel, the auxiliary reflecting mirror 16 is used by the auxiliary reflecting mirror 16 when it is desired to illuminate the near side when the speed is reduced to make a curve. The reflected light will illuminate the desired road surface.

FIG. 5 shows the light distribution of the reflected light from the auxiliary reflecting mirror 16. In FIG. 5, the line HH is a line extending horizontally at substantially the height of the driver's eyes, and the line VV is shown as a line. It is a vertical line that intersects the HH line substantially at the center of the vehicle. As can be seen from FIG. 5, when the auxiliary reflecting mirror 16 faces forward, the light distribution 25 (0) is applied to the intersection of the HH line and the VV line, and the auxiliary reflecting mirror 16 is turned off. As you tilt to the side,
The light distribution is 25 (10L), 25 (10R), 25
(20L), 25 (20R), 25 (30L), 25
(30R) is displaced downward. still,
The numbers in parentheses indicate the tilt angles of the auxiliary reflecting mirror 16 to the side of the irradiation axis with respect to a line extending straight forward from the vehicle,
L and R indicate tilt directions, that is, L indicates leftward and R indicates rightward.

Although the details of the driving section have not been shown, the configuration of this portion is not particularly limited in the present invention as long as the auxiliary reflecting mirror 16 can be tilted. Reference may be made to those disclosed in JP-A-1-197901, JP-A-1-204301, JP-A-1-213902, JP-A-1-232603, JP-A-1-253102 and the like.

[0023]

As is apparent from the above description, the vehicular lamp according to the present invention comprises a main reflecting mirror whose irradiation axis is directed substantially forward and an auxiliary reflecting mirror whose irradiation axis can be tilted substantially in the horizontal direction. A vehicle lamp provided with the auxiliary reflecting mirror, wherein a tilt axis of the auxiliary reflecting mirror is tilted rearward with respect to a vertical axis.

Therefore, in the vehicle lamp according to the present invention, since the irradiation axis of the auxiliary reflecting mirror is directed downward as the auxiliary reflecting mirror is directed to the side, it is necessary to irradiate the front of the road surface when the vehicle curves. Can be done.

In the above embodiment, the main reflecting mirror is fixed to the lamp body. However, the auxiliary reflecting mirror may be tiltably provided on a tiltable main reflecting mirror of a movable reflecting mirror type. .

In addition, all of the specific shapes and structures shown in the above embodiments are merely examples for embodying the present invention, and the technical scope of the present invention is limitedly interpreted. It is not something to be done.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view showing a main part of a vehicular lamp of the present invention.

FIG. 2 is a plan view partially cut away.

FIG. 3 is a horizontal cross-sectional view showing a state in which an auxiliary reflecting mirror is tilted sideways from below.

FIG. 4 is an enlarged sectional view taken along the line IV-IV in FIG. 3;

FIG. 5 is a light distribution diagram of light reflected by an auxiliary reflecting mirror;

[Explanation of symbols]

 Reference Signs List 1 vehicle lamp 6 main reflector 12 irradiation axis of main reflector 13 vertical axis 15 tilt axis of auxiliary reflector 16 auxiliary reflector

Claims (1)

(57) [Claims] 1. A vehicular lamp comprising a main reflecting mirror whose irradiation axis is directed substantially forward and an auxiliary reflecting mirror whose irradiation axis can be tilted substantially in the horizontal direction, wherein the tilt axis of the auxiliary reflecting mirror is a vertical axis Against
A vehicular lamp characterized by being inclined rearward .