JPS6099734A - Retractable head lamp structure for automobile - Google Patents

Abstract

PURPOSE:To make a beam of light out of a lamp possible to light up a sideward direction ahead a car body through a lens as well as to aim at improvements in safety in time of turning around, by attaching the lens to a corner opening part installed in a member which blocks up the lamp front side, while letting the lamp go down in time of turning around. CONSTITUTION:In time of turning a car to the left, by way of example, if a turn signal switch 63 is turned on to the side of a contact 63a, an interlocking switch 64 is turned on to the side of a contact 64a as interlocked with the switch 63 and with the on-action of a lighting switch 61, a relay 65 closes whereby a control current is energized. A control circuit 66 drives a driving motor 30a of a lamp 2 so as to cause the left head lamp 2 to go down from an operating position to a housing position B. And, the lamp 2 is set to the housing position B while keeping its attitude facing the front by each action of a driving mechanism K and a parallel link L. Likewise, the light 2 keeps its lightingness at the housing position B, and a beam S of light out of the lamp 2 lights up the left front side of a car body after being magnified by a lens 51.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to a tractor-pull headlamp structure for an automobile, and in particular, to a structure which can also be used as a so-called cornering lamp that illuminates the front side in the turning direction when a car turns. 1 - Relating to a Rakutable Rado Lamp Structure.

(2) Conventional technology and its problems Conventional automobile headlamps are fixed to both sides of the front of the vehicle body, and are mainly used to ensure forward visibility of the vehicle at night. The amount of light irradiated to the vicinity of each side is not so large. For this reason,
When an automobile turns around a sharp corner, it is difficult to accurately grasp the state of the corner by looking at the headlights.

A solution to such problems is shown, for example, on pages 47 and 278 of Matsugurugie Recard Drawing and Maintenance (October 1977). There are ζ things.

This is installed on the left and right front of the car (the front side of the heffender).
- Cornering lamps are attached to each cornering lamp, and these cornering lamps are linked with a turn signal switch to illuminate the front side of the corner in the direction of the turning direction when the car is turning, so as to improve safety when the car is turning.

Incidentally, in recent years, so-called retractable headlamps, which are fixed type and movable retractable type, are being provided among headlamps. As shown in Fig. 1, a lamp storage section 1 is formed on both sides of the front of the vehicle body, and a headlamp 2 is stored in the lamp storage section 1 so that it can be retracted. When the lamp 2 is not in use, the front of the vehicle body is lowered to reduce air resistance, while when the headlamp 2 is in use, the height of the main optical axis of the headlamp 2 is raised above the ground to increase the reach of the light emitted from the headlamp 2. In addition, the effect of glare on oncoming vehicles caused by the principal optical axis error is reduced.

However, even with the above-mentioned tractor-pull headlamps, sufficient illumination light (6) from the front and sides of the vehicle body is not secured, so in order to ensure visibility from the front and sides of the vehicle body, the hypothetical method shown in Figure 1 is used. As shown by the line, the above-mentioned cornering lamp 3 is essential. In this case, since the cornering lamp 3, which is a separate unit from the headlamp 2, is attached to the vehicle body, the number of parts increases and the number of man-hours required to remove the cornering lamp 3 increases. arise.

(3) Purpose of the Invention The present invention has been made based on the above-mentioned viewpoints, and its purpose is to provide a retractable headlamp in front of the vehicle without separately providing a cornering lamp unit. To provide a lamp structure for an automobile or tractor puller 1 which can also be used as a cornering lamp by using a bulb in an existing headlamp.

(4) Structure of the Invention The basic structure of the present invention is to provide a corner opening that goes around from the front of the vehicle body to the side in a member that closes the front side of the headlamp in the storage position of the headlamp; A transparent lens is attached to the opening, and when a car turns, the headlamp in use corresponding to the turning direction is lowered from its use position, and the light from the headlamp is irradiated to the front side of the car body through the lens. The automobile is glued to the tractor pull headlamp structure.

(5) Embodiments of the invention Hereinafter, the present invention will be described in detail based on embodiments not shown in the accompanying drawings.

In the first embodiment shown in FIGS. 2 to 6, the lamp housing section 1 has a cutout 9 in a part of the hood 8, and a radiator core port panel 10 and a front grille 11 that define the front surface of the vehicle body. It is formed between the headlamp 2 and the headlamp 2.
consists of a housing 2a, which also serves as a reflector, and a bulb 2b, and a valve 2C, and is a lifting device @2° fixed to the vehicle body.
A usage position A supported by the lamp storage unit 1 and exposed from the lamp storage unit 1, and a storage position B stored in the lamp storage unit 1.
It is designed to move peacefully between the two.

In this embodiment, the lifting device 20 is a so-called parallel link including a lower link 21 having a pair of left and right link arms 21a and an upper link 22 disposed parallel to the lower link 21 and also having a pair of left and right link arms 22a. L, and a drive mechanism for driving this parallel link L. A support bracket 23 having a pair of upper and lower support parts is fixed to the radiator core support panel 10, and the base end of the link arm 21a of the lower link 21 is connected to the bottom of the support bracket 23 via a pivot 24. The tip of the link arm 21a is pivoted to the lower side of the housing 2a of the headlamp 2 via a pin 25, while the base end of the link arm 22a of the upper link 22 is pivoted to a pivot 26. is pivoted to the upper mounting part of the support bracket 1-23 via the
The tip of the link arm 22a is pivotally supported on the upper side of the housing 2a of the headlamp 2 via a pin 27. The drive mechanism also includes a motor 30 that rotates a predetermined number of meters in the forward and reverse directions and stops in conjunction with the A off of the lighting switch, and a worm gear (
forward/reverse 18 via the worm wheel 33 (not shown) and the worm wheel 33.
A motor link 31 that rotates every 0 degrees, and a motor rod 3 that has one end connected to the free rotation end of the motor link 31.
2, the other end of the motor rod 32 is connected to an intermediate position of one link arm 21a of the lower link 21, and the motor rod 3 rotates as the motor link 31 rotates.
2, the lower link 21 swings about the pivot point on the vehicle body side. Further, both sides of a lid 40 are fixed to the link arms 22a of the upper link 22, and the lid 40 opens and closes the lamp storage section 1 as the upper link 22 rotates.

In addition, in this embodiment, as shown in FIGS. 4 and 5, the front grille 11 that blocks the front side of the headlamp 2 stored in the lamp storage section 1 and the front fender 12 on the side thereof have the above-mentioned A corner opening 50 is provided that extends laterally from a portion corresponding to the entire front surface of the headlamp 2, and a lens 51 formed of crow or the like is fixed to this corner opening 50 via a frame 52. The lens 51 is the lens 2b of the headlamp 2.
It has a general part 53 that faces the entire surface and a wrap-around part 54 that wraps around to the side, and a diffusion lens cut (not shown) is made on the back surface of the lens 51. The application number 80 in Figure 2 is Banba.

Furthermore, in this embodiment, the drive circuit for the headlamp 2 is as shown in FIG. 6, for example. In the figure, 30a and 30b are motors for driving left and right head lamps, and 2LI and 2L2 are filaments 1 to . 2R+, 2R2
60 is a battery power source; 61 is a lighting switch that lights up the headlamp 2; 62 is a flag unit 17 that causes the turn signal lamp to blink when the turn signal lamp is turned on; is a contact point 63a leading to the left and right turn signal lamps.

A turn signal switch 63b has contacts 64a and 64b corresponding to the drive motors 30a and 30b of the left and right headlamps 2, and an interlocking switch that is interlocked with the turn signal switch 63. A lighting switch 61 is turned on by 65. A relay that closes between the switch 64 and the battery power source 60, 66 is the interlocking switch 6
According to the contacts 64a and 64b of 4, the drive motor 30
A control circuit 67 lowers either of a and 30b to the lamp storage position B, and a control circuit 67 rotates the drive motors 30a and 30b in conjunction with the lighting switch 64 to raise and lower the headlamp 2 and to operate the low beam and high beam. Each filament 2 L according! , 2 L2 1
This is a control unit that controls energization to 2 R1 and 2 R2.

Therefore, according to the retractable Radlamp structure according to this embodiment, when the headlamp 2 is used, it is only necessary to turn on the lighting switch 61 (not shown in FIG. 6), and the headlamp 2 is turned on via the control unit 67. At the same time, it moves from the storage position B (not shown in FIG. 4) to the use position A shown in FIG. 3. At this time, storage position B
As shown in FIG. 4, the motor rod 32 and the motor link 31 are in an overlapping state, and the connection point P 1 between the motor rod 32 and the lower link 21 is the center of rotation Po of the motor link 31. The connecting axis length fL+ is set to a minimum value. Therefore, when the motor link 31 rotates 180 degrees in the direction of arrow C as the motor 30 operates, the motor rod 32 connected to the motor link 31 is pushed backwards and forwards, as shown in FIG. As a result, the motor rod 32 and the motor link 31 are arranged linearly with the connection point P2 between them, and the rotation center P is between the connection point P1 and the rotation center P. The axis line eldest daughter 2 connecting the two is set to the maximum value. In this state, the lower link 21 connected to the motor rod 32 rotates upward about the pivot point on the vehicle body side, thereby moving the headlamp 2 upward.

When the headlamp 2 is moved upward, the upper link 22 also rotates in parallel with the lower link 21 about the pivot point on the vehicle body side, so that the headlamp 2 is in the retracted position ff1B. In other words, the lens 2b of the headlamp 2 moves upward in parallel while maintaining its posture, in other words, with the lens 2b of the headlamp 2 facing forward, and is set to the use position flA.

In this case, even if an error occurs in the operation of the motor 30, only the upward stroke of the headlamp 2 changes, and an angular error in the main optical axis of the headlamp 2 does not occur. Therefore, there is no concern that the light distribution characteristics of the headlamp 2 will be extremely degraded or that the glare phenomenon for oncoming vehicles will become noticeable.

Furthermore, when storing the headlamp 2 in the use position A, it is sufficient to turn off the lighting switch 61 (not shown in FIG. 6), and the headlamp 2 is turned off via the control unit 67, and at the same time, It moves from the use position A (not shown) to the storage position B shown in FIG. At this time, as the motor 30 rotates, the motor link 31 rotates 180 degrees in the direction of the arrow in FIG.
The motor rod 52 connected to the lower link 21 is pushed downward, and accordingly, the lower link 21 rotates downward about the pivot point on the vehicle body side.

As a result, the headlamp 2 supported by the parallel link consisting of the lower link 21 and the upper link 22 moves downward in parallel while maintaining its posture in the use position A, and is set to the storage position B. In this state, the lens surface 2a of the headlamp 2 faces the front,
Moreover, since the general item 53 of the lens 51 faces the entire surface of the lens 2b of the headlamp 2, the headlamp 2
When the vehicle is retracted at 83 and a passing operation is performed, the beam from the headlamp 2 is irradiated to the outside of the vehicle through the lens 51, making it possible to alert oncoming and preceding vehicles.

Furthermore, when the headlamp 2 is set to the operating position 1r1Δ, when the car is currently turning to the left, the return signal switch 6 shown in FIG.
3 is connected to the Q 63a side. At this time, the interlocking switch 64 is linked to the turn signal switch 63.
is turned on to the contact 64a side. Then, as the relay 65 closes as the lighting switch 61 turns on, this relay 65 and the interlocking switch 6 close.
A control current is applied to the control circuit 66 through 4.

In this state, the control circuit 66 controls the drive motor 30a of the left headlamp 2 so as to lower the left headlamp 2 from the use position @A to the storage position @B.
The left headlamp 2 is driven by
Due to the action of the above-mentioned drive unit K and parallel link L, it is set to the retracted position while maintaining a front-facing attitude.

In this case, the filament 2L of the left headlamp 2
Since the energization state to I or 21-2 is maintained, the left headlamp 2 remains lit in the retracted position. Therefore, the beam S from the left headlamp 2 located next to the storage position is transmitted to the lens 5 of the corner opening 50.
1, and the left front side of the vehicle body is illuminated as the aftereffect diffused by the lens 51. In this case, the left headlamp 2 mainly functions as a cornering lamp. Incidentally, when the vehicle is turned to the right, the right headlamp 2 mainly functions as a cornering lamp by the same action as described above.

In this state, in the above embodiment, when the car turns, only the headlamp 2 in the turning direction J3 is lowered to the storage position B, so the headlamp 2 in the non-turning direction moves toward the front of the vehicle. This effectively maintains the illumination state, which improves driving safety when the car turns.In addition, for the headlamp 2 in the turning direction of the car, the beam is directed toward the front of the car body through the general component 53 of the lens 51. Since the light is being illuminated, a certain amount of illumination can be secured in the vicinity in front of the vehicle in the turning direction, and there is no risk that safe driving of the vehicle will be significantly impaired.

Next, a second embodiment shown in FIG. 7 will be described.

This embodiment differs from the first embodiment in that when the car turns, the headlamp 2 in the turning direction is lowered to an intermediate position between the use position and the retracted position, in other words, to the half-retracted position B'. It is something. In this case, since the upper half of the lens 2b surface of the headlamp 2 remains exposed from the lamp housing 1, relatively sufficient illumination of the front of the vehicle body is ensured by the beam S1 from the upper half. A beam S2 from the lower half of the lens 2b surface of the headlamp 2 passes through the lens 51 of the corner opening 50 and is used as illumination light as a cornering lamp. At this time, there is no need to irradiate the beam toward the front of the vehicle body through the lens 51 of the corner opening 50, so the corner opening 50 and the lens 51 ranges may be set.

Further, in the third embodiment shown in FIG. 8, the headlamp 2 is rotatably supported by an elevating device 70, unlike the above-mentioned embodiments, and the elevating device 70 is, for example, attached to the vehicle body. A bracket 71 that is pivotally supported and holds the headlamp 2; a link mechanism 72 that is formed by a pair of link arms with one end rotatably connected and the other end of which is pivotally supported on the bracket 71 and the vehicle body; and this link mechanism. It consists of a drive machine IMK similar to that of the first embodiment, which swings the bracket 71 via the bracket 72. When the vehicle turns, the headlamp 2 corresponding to the turning direction is lowered from the use position A to the storage position B. Also, the lens 21 of the headlamp 2 stored in the storage position B
A shift cliff lever 73 is disposed at a portion facing one side to direct the light from the headlamp 2 to the front side of the vehicle body, and the front grille 11 that blocks the front side of the headlamp 2 and the front 1 to the fender on the sides are disposed. (not shown) is provided with a corner opening 1] 50 that goes around from the front of the vehicle body to the side, facing the reflector 73, and this corner opening 50
A transparent lens 51 is attached to the.

Therefore, according to this embodiment, when the vehicle turns to the left or right when the headlamp 2 is in use, the headlamp 2 corresponding to the turning direction is lowered to the storage position B.
is stored in At this time, the beam S from the headlamp 2 is reflected by the reflector 73 and then reflected by the lens 51.
The headlamp 2 functions as a cornering lamp.

In each of the above embodiments, when the car turns, the headlamp 2 in the turning direction is lowered from the use position A, but the invention is not necessarily limited to this, and both the left and right headlamps are lowered from the use position A. 2 may be lowered from the use position A. In this case, it is necessary to secure a certain degree of visibility in front of the vehicle body through the lens 51 of the corner opening 50. In addition, the lifting device 20.7
0 is not limited to those shown in each of the above embodiments, and it goes without saying that the film 81 can be changed as appropriate.

(6) As described in detail, according to the automobile tractor-pull headlamp structure according to the present invention, the bulb of the headlamp can be used to double as a cornering lamp. There is no need to separately install the lamp unit 1-, and the number of parts and the number of work steps associated with installation can be reduced accordingly.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an automobile equipped with a conventional glue tractor-pull headlamp, and FIG. 2 is a sectional view taken along the line ■-■ in FIG.
Fig. 4 shows the state of the headlamp when it is retracted and when the car is turning; a sectional view corresponding to Fig. 3;
5 is a sectional view taken along the line V-V in FIG. 4, and FIG. 6 is a circuit diagram showing an example of a drive circuit for a lactable lamp.
FIGS. 7 and 8 are two-dimensional views in cross section corresponding to FIG. 4 showing different embodiments of the one-heractor pull head lamp structure according to the present invention. A... Usage position B... Storage position B'... Half-retracted position 1... Lamp storage section 2...
Headlamp 20.70 Lifting device 50 Corner opening 51 Lens Patent applicant Nissan Motor Co., Ltd.

Claims (1)

[Claims] In an automobile tractor-pull headlamp structure in which a headlamp is lifted and lowered on both sides of the front of the vehicle body between a use position and a storage position, a member that closes the front side of the headlamp in the storage position of the headlamp is attached to the vehicle body. A corner opening is opened that goes around from the front to the side, and a transparent lens is attached to the corner opening, so that when the vehicle turns, the headlamp in use corresponding to the turning direction is lowered from its use position. A tractor pull headlamp structure for an automobile, characterized in that light from the headlamp is irradiated to the front side of the vehicle body through the lens.