JPH04255604A - Lighting fixture for vehicle - Google Patents

Abstract

PURPOSE:To enable a vehicle to illuminate a nearer position on a road at the time of running along a curve by providing a main reflecting mirror having an approximately forward illumination axis, and an auxiliary reflecting mirror capable of tilting approximately right and left with a tilting axis slightly inclined down forward from a vertical line. CONSTITUTION:When a rotary shaft 15 is rotated by the motor of a drive section via a connection link 24, an auxiliary reflecting mirror 16 fixed to the upper end of the shaft 15 turns, thereby changing the illumination axis of the mirror 16 right and left. According to the sideward tilting motion of the reflecting mirror 16, the illumination axis thereof is displaced downward with the tilting motion, as the axial line of the rotary shaft 15 is inclined slightly from a vertical line 13. By setting the reflecting mirror 16 in such a way as tilting right and left in response to the operation of a steering wheel, therefore, a desired road surface can be illuminated with reflected light from the reflecting mirror 16, when it is desired to lower the speed of a vehicle and illuminate a nearer position for travel along a curve.

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. Specifically, in a vehicle lamp equipped with a main reflector whose irradiation axis faces approximately forward and an auxiliary reflector whose irradiation axis can be tilted approximately left and right, when the auxiliary reflector faces to the side, the auxiliary reflector This makes it possible to irradiate areas closer to the vehicle than when the vehicle is facing the vehicle.

0002

2. Description of the Related Art Some automotive lamps are equipped with a main reflector whose irradiation axis faces substantially forward, and an auxiliary reflector whose irradiation axis is tiltable in the left and right directions.

[0003] In such lighting equipment, the auxiliary reflector is usually tilted in response to the handle operation, and the auxiliary reflector is tilted in the direction and angle corresponding to the direction and amount in which the handle is turned. It is used as a so-called cornering lamp that illuminates the road surface on the side where the vehicle is turning.

0004

[Problems to be Solved by the Invention] However, in the above-mentioned conventional vehicle lamp, since the tilting axis of the auxiliary reflector is along the substantially vertical direction, the light reflected by the auxiliary reflector is directed forward. The distance of the illuminated road surface from the vehicle does not change even when the vehicle is turned to the side or to the side.

However, when the reflected light is irradiating the side, it is when the vehicle is making a curve, so the speed is slow and it is necessary to irradiate the nearby road surface rather than the distant road surface. Conventional vehicle lighting equipment could not meet these requirements.

[0006]

[Means for Solving the Problems] Therefore, in order to solve the above-mentioned problems, in the vehicle lamp of the present invention, the tilting axis of the auxiliary reflector is tilted slightly forward and downward with respect to the vertical axis. .

[0007]

[Operation] Therefore, in the vehicle lamp of the present invention, the more the auxiliary reflector faces to the side, the lower the irradiation axis will be, so that when the vehicle curves, it will be able to irradiate the area further in front of the road surface. I can do it.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the vehicle lamp of the present invention will be explained below according to the first embodiment shown in the attached drawings.

A lamp body 2 is fixed to the vehicle body, is made of synthetic resin, and has a concave portion 3 facing forward. A lens 4 is attached to the lamp body 2 so as to cover the front opening thereof, thereby forming a lamp space 5 surrounded by the lamp body 2 and the lens 4.

Reference numeral 6 denotes a main reflecting mirror disposed within the lamp space 5, which has a horizontally long shape when viewed from the front, and its reflecting surface 7 has a substantially paraboloid of revolution shape. and the reflective surface 7
The irradiation axis points approximately forward.

Further, flat portions 8 and 9 are integrally formed from both upper and lower edges of the main reflecting mirror 6 and project approximately forward, and a bearing cylinder portion is formed approximately 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 slightly inclined forward and downward relative to the vertical line 13, for example, by about 3 degrees.

Reference numeral 14 denotes a light bulb mounted approximately at the center of the main reflecting mirror 6, and its light emitting portion 14a (filament) is positioned approximately at the focal point of the main reflecting mirror 6.

Reference numeral 15 denotes a rotating shaft rotatably inserted through the bearing sleeve 10, and both upper and lower ends thereof protrude from both upper and lower ends of the bearing sleeve 10, respectively.

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

Reference numeral 19 denotes a drive unit, which is disposed at the lower side of the lamp space 5 and extends from the lower end of the case 20 to the output shaft 2.
1 is highlighted. The output shaft 21 is configured such that the output of a motor (not shown) disposed within the case 20 is transmitted 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 section 19, and 23 is a connecting piece whose base end is fixed to the lower end of the rotary shaft 15. Reference numeral 24 denotes a connecting link, and both ends thereof are rotatably connected to the rotating ends of the connecting pieces 22 and 23, respectively.

[0017] When the motor of the drive section 19 is driven, its rotation is decelerated and transmitted to the output shaft 21, and the connecting piece 22 rotates, so that the rotation is transmitted to the connecting piece 23 via the connecting link 24. Therefore, the rotating shaft 15 is rotated.

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

Then, as the auxiliary reflecting mirror 16 tilts laterally, the axis of its rotating shaft 15 (the axis 1 of the bearing cylinder portion 10
Same as 1. ) is inclined slightly forward and downward with respect to the vertical line 13, so its irradiation axis is displaced downward as it tilts laterally. Therefore, the more the auxiliary reflecting mirror 16 tilts to the side, the more the near side will be illuminated.

Therefore, if the auxiliary reflector 16 is tilted left and right in response to the operation of the handle, when the speed decreases due to a curve and you want to illuminate more of the near side, the auxiliary reflector 16 will tilt. The reflected light illuminates the desired road surface.

FIG. 5 shows the light distribution of the reflected light from the auxiliary reflecting mirror 16. In FIG. This is a vertical line that intersects the above line H-H at approximately the center of the vehicle. As can be seen from FIG. 5, when the auxiliary reflecting mirror 16 faces forward, its light distribution 25(0) is irradiated to the intersection of the H-H line and the V-V line, and the auxiliary reflecting mirror 16 As it tilts to the side,
The light distribution is 25 (10L), 25 (10R), 25 (
20L), 25(20R), 25(30L), 25(3
0R). still,(
The numbers in ) indicate the lateral tilt angle of the irradiation axis of the auxiliary reflector 16 with respect to the line extending straight forward from the vehicle;
R indicates the tilting direction, that is, L indicates the left direction and R indicates the right direction.

Although the details of the driving section are not shown, the configuration of this section is not particularly limited in the present invention as long as it can tilt the auxiliary reflecting mirror 16, and for example, , JP-A-1-197901, JP-A-1-204301, JP-A-1-213902, JP-A-1-232603, JP-A-1-253102, etc. may be helpful.

[0023]

[Effects of the Invention] As is clear from the above description, the vehicular lamp of the present invention includes a main reflector whose irradiation axis faces substantially forward, and an auxiliary reflector whose irradiation axis is tiltable substantially in the left and right directions. This vehicle lamp is characterized in that the tilting axis of the auxiliary reflecting mirror is tilted slightly forward and downward with respect to the vertical axis.

Therefore, in the vehicle lamp of the present invention, the more the auxiliary reflector faces to the side, the lower the irradiation axis will be, so that when the vehicle curves, the more near the road surface is irradiated. I can do it.

In the above embodiments, the main reflecting mirror is shown as being fixed to the lamp body, but an auxiliary reflecting mirror may be provided on the tiltable main reflecting mirror of a movable reflecting mirror type. .

[0026] In addition, the specific shapes and structures shown in the above embodiments are merely examples of embodying the present invention, and the technical scope of the present invention should not be construed as limited by these. It is not something that will be done.

[Brief explanation of the drawing]

FIG. 1 is an enlarged sectional view showing essential parts of a vehicle lamp according to the present invention.

FIG. 2 is a partially cutaway plan view.

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

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

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

[Explanation of symbols]

1 Vehicle lights 6 Main reflecting mirror 12 Irradiation axis of main reflector 13 Vertical axis 15　Auxiliary reflector tilting axis 16 Auxiliary reflector

Claims (1)

[Claims] Claim 1: A vehicular lamp comprising a main reflector whose irradiation axis faces substantially forward and an auxiliary reflector whose irradiation axis is tiltable in substantially left and right directions, the auxiliary reflector having a tilting axis that is vertical. A vehicle lamp characterized by being tilted slightly forward and downward relative to the vehicle.