JPS6346938A - Cornering lamp system for vehicle - Google Patents

Abstract

PURPOSE:To obtain a system of low cost further with high reliability simplifying constitution, by fixing the irradiation direction of a lighting means in the steering direction side to its one point interlocking to the steering action of a handle with a straight advancing steering position serving as the start point. CONSTITUTION:A handle is turned to the right, and even if the steering action is started to the right, right and left lamps continue their irradiating direction to stop being left as directed toward the front. However, if the steering action is continued further to the right, output terminals 17, 18 of a photosensor 1 obtain 0, 1 and an up/down counter 28 counts its counting value up further by 1. Then DC motors 39, 49 are rotated turning lamp driving shafts 6, 7 to the right and moving clockwise the irradiating direction of the right and left lamps. And the irradiating direction of the right and left lamps is stopped to a deflective angle position of 30 deg. in the right direction by separating slide contacts 34b, 44b from conductor patterns 32, 44. In this way, a system of low cost further with high reliability can be constituted simplifying its construction because the irradiating direction is fixed to one point in the steering direction side interlocking to the steering action of the handle.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cornering lamp system for a vehicle that changes the irradiation direction of a lighting means based on steering wheel operation.

[Conventional technology]

Vehicles, especially automobiles, are equipped with headlights on the left and right sides of the front of the vehicle as lighting means for illuminating the area ahead at night, but these headlights only illuminate the front of the vehicle in a fixed manner. When the vehicle approaches a curve, the direction in which the vehicle is traveling cannot be sufficiently illuminated. That is, when cornering around a curve, sufficient illumination is not provided in the direction in which the vehicle is actually traveling, and there is a risk that danger may occur.

Therefore, in order to improve such problems, conventionally,
A cornering lamp system has been proposed in which the direction of illumination of headlights is varied in conjunction with the steering of the vehicle's steering wheel, and is configured to illuminate the direction of travel. For example, a mechanical cornering lamp system configured to move the headlights via a link from the steering wheel blonde, or an electric type configured to detect the rotation angle of the headlights with a rotary encoder and controlled by a servo motor. cornering lamp systems and the like have been proposed.

[Problem that the invention seeks to solve]

However, in conventional cornering lamp systems, the irradiation direction of the headlights is continuously changed in conjunction with the steering wheel of the vehicle, and its position is controlled. The problem was that the reliability was low considering the high cost.

[Means for solving problems]

The present invention has been made in view of these problems, and among the lighting means arranged on the left and right sides of the front of the vehicle, the irradiation direction of at least the lighting means on the steering direction side is adjusted to the steering wheel steering starting from the straight-ahead steering position. They are linked and fixed at one point on the steering direction side.

[Effect]

Therefore, according to the present invention, the irradiation direction of the lighting means on the steering direction side is fixed to one point on the steering direction side in conjunction with the steering wheel steering starting from the straight steering position.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS The vehicle cornering lamp system according to the present invention will be described in detail below. FIG. 1 is a circuit diagram showing one embodiment of this cornering lamp system. In the figure, 1 is a photosensor attached to a slit disk (not shown) linked to the handle, 2 is a processing circuit that processes the electrical signal sent out by this photosensor 1, and 3 is a process sent out by this processing circuit 2. 4 is a processing circuit 2 which drives a headlamp (not shown) installed on the front right side of the vehicle based on a signal.
A left lamp drive unit 5 is a DC power source that drives a headlamp (not shown) (hereinafter referred to as a left lamp) installed at the front of the vehicle based on a processed signal sent by the left lamp drive unit.

The photosensor 1 is a light emitting diode 11. A first phototransistor consisting of a phototransistor 12 and resistors R, ,R,
An incretor 13 and a light emitting diode 14. It is composed of a phototransistor 15 and a second photo-interrupter 16 made up of resistors R: In conjunction with this, a pulsed electric signal of the same waveform is generated, alternating between "1" level and "0" level as shown in FIG. 2 (al and (b)). By rotating clockwise (clockwise) from the neutral point (straight steering position), a positive electric signal centered at 0° will be changed to a negative electric signal centered at 0'' by rotating counterclockwise. (a) shows the electrical signal generated at the output terminal 17, and (b) shows the electrical signal generated at the output terminal 18. The signal is output terminal 1
The phase is 90″ ahead of the electrical signal generated at 8,
When the handle is at the neutral point, that is, Oo in FIG.
At this time, the electrical signal generated at the output terminal 18 changes from the "1" level to the "0" level, or from the "0" level to the "1" level.
The electric signal generated at the output terminal 17 is at the "0" level state at the rising or falling period when the level changes.

On the other hand, the processing circuit 2 includes Nant gates 21, 22, an inverter 23, R-S flip-flop circuits 24, 25, AND gates 26, 27, an UP/DOWN counter 28, and a decoder/driver 29.
-S flip-flop circuits 24 and 25 are composed of OR gates 241, 242 and 251, 252 with negative logic inputs. Then, the electrical signal generated at the output terminal 17 of the photosensor 1 is transmitted to the Nant gates 21 and 2.
2 and one end of the R-S flip-flop circuit 24 and 2
The electrical signal generated at the output terminal 18 of the photosensor 1 is input to one end of the AND gate 26, the other end of the Nand gate 22, and the inverter 23. It is now entered into

The electrical signal output from the inverter 23 is input to the other end of the Nandt gate 21 and one end of the AND gate 27. Also, Nantes Gate 21
and the output of 22 is the R-S flip-flop circuit 24
and 25 set terminals 24s and 25s, and the R-S flip-flop circuit 24
and 25 are input to the other ends of AND gates 26 and 27 via Q output terminals 24q and 25q. And gates 26 and 27
The output of the UP/DOWN counter 28 is input to the up input terminal 28u and the down input terminal 28d, and the UP/DOWN counter 28 is input to the input terminal 28u and the down input terminal 28d.
Every time a "1" level signal is input to 8u or 28d, the count value is increased or decreased, and a digital signal corresponding to the count value is output to the output terminals 28A to 28.
Input terminal 29A of the decoder/driver 29 through D
29D. The decoder/driver 29 receives this digital signal, selects a predetermined output terminal from among the output terminals 29a to 29o, and sets the level to the rOJ level. That is, at point N in FIG. 2, the count value in the UP/DOWN counter 28 is set to zero, and at this time the decoder/driver 29 outputs the output terminal 29h.
is selected, and only the level of this output terminal 29h is set to the "0" level. And UP/DOWN
Every time the count value increases by l in the counter 28, the output terminal to be set to rOJ level is changed from 29h to 29g.
29 f -...29a. Also, each time the count value in the UP/DOWN counter 28 decreases by 1 from zero, the output terminal to be set to the "0" level is changed from 29h to 29i, 29j, . . . 290.
It is designed to be postponed sequentially. It goes without saying that even in a countdown after a count-up or a count-up after a countdown, the output terminals that are at the "0" level are sequentially carried down or carried up to the adjacent output terminals. Output terminals 29a to 29f of the decoder/driver 29 are connected to output terminals 2a and 2d of the processing circuit 2, 29g to 29i are connected to output terminals 2b and 2e, and 29j to 29o are connected to output terminals 2c and 2f, respectively.

Thus, the output terminals 2a and 2C of the processing circuit 2 are connected to the sliding contacts 34b and 34d that are in sliding contact with the semicircular band-shaped conductor patterns 32 and 33 formed on the sliding board 31 of the right lamp drive unit 3. and the sliding contact 34
Sliding contact 34 adjacent to b, a is coil 3 of relay 35
It is connected to the positive polarity side of the DC power supply 5 via 51.

Furthermore, a sliding contact 34e adjacent to the sliding contact 34d is also connected to the positive polarity side of the DC power supply 5 via a coil 361 of the relay 36, and diodes 37 and 38 are connected in parallel to the coils 351 and 361. ing. and,
The normally open/normally closed contacts 352 of the relay 35 and the normally open/normally closed contacts 362 of the relay 36 are connected to both connection ends of the DC motor 39, and when the relay 35 is energized, the normally open/normally closed contacts are connected. The common terminal 352c of the contact 352 and the normally open contact terminal 352a are connected to each other, and the positive polarity side of the DC power supply 5 is connected to one end of the DC motor 39.

Also, when the relay 36 is in the energized state, it is normally open.
Common terminal 362C of normally closed contact 362 and normally open contact terminal 3
62a is electrically connected to the other end of the DC motor 39.
The positive polarity side of is connected. That is,
The normally open/normally closed contacts 352 and 362 are normally in a conductive state between the common terminals 352C and 362c and the normally closed contact terminals 352b and 362b, and at this time, the DC motor 3
Both ends of 9 are grounded. Then, when DC power is supplied to the DC motor 39 via the normally open/normally closed contacts 352, the motor rotates the lamp drive shaft 6 clockwise (clockwise rotation in the figure). The conductor patterns 32 and 33 rotate clockwise together with the sliding substrate 31 as the substrate rotates. Further, when DC power is supplied to the DC motor 39 through the normally open/normally closed contacts 362, the lamp drive shaft 6 rotates counterclockwise, and as the lamp drive shaft 6 rotates counterclockwise, the conductor patterns 32 and 33 rotate. rotates counterclockwise together with the sliding base plate 31.

Note that by rotating the lamp drive shaft 6 clockwise or counterclockwise, the direction of irradiation of the right lamp installed on the right side of the front of the vehicle changes. The direction of illumination of the right lamp is rotated to the right when viewed from the driver's seat, and the lamp drive shaft 6 is rotated to the left, so that the irradiation direction of the right lamp is rotated to the left.

On the other hand, output terminals 2d and 2'' of the processing circuit 2 are connected to sliding contacts 44b and 44d that are in sliding contact with the conductor patterns 42 and 43 of the left lamp drive unit 4, and are connected to sliding contacts 44b and 44d adjacent to the sliding contact 44b. 44a is connected to the positive polarity side of the DC power supply 5 via the coil 451 of the relay 45. In addition, the sliding contact 44e adjacent to the sliding contact 44d is also connected to the positive polarity side of the DC power supply 5 through the coil 461 of the relay 46. The relay 4 is connected to both ends of the DC motor 49.
The normally open/normally closed contact 452 of No. 5 and the normally open/normally closed contact 462 of the relay 46 are connected. And DC motor 4
When DC power is supplied to the motor 9 through the normally open/normally closed contact 452, the motor rotates the lamp drive shaft 7 clockwise, and the irradiation direction of the left lamp installed on the left side of the front of the vehicle is rotated clockwise. Rotate the normally open/normally closed contact 4 to the DC motor 49.
When DC power is supplied through the lamp 62, the lamp drive shaft 7 is rotated to the left, and the irradiation direction of the left lamp is rotated to the left. Note that the output terminal 2b of the processing circuit 2
and 2e are connected to the sliding contacts 34C and 44c of the right lamp drive unit 3 and the left lamp drive unit 4.

Next, the operation of the vehicle cornering lamp system configured as described above will be explained. That is, it is assumed that the automobile is now traveling straight ahead and the steering wheel is at the neutral point (straight ahead steering position) (point N in FIG. 2). At this time, UP/
The count value in the DOWN counter 28 is zero,
The decoder/driver 29 has only its output terminal 29h "
0” level. In other words, the output terminals 292-2
9g and 29i to 290 are all at the "1" level, and the sliding contacts 34b and 34 of the right lamp drive unit 3
d and the sliding contacts 44b, 4 of the left lamp drive unit 4
4d is at the "1" level. Therefore, the coils 351 and 361 of the right lamp drive unit 3 and the coils 451 and 461 of the left lamp drive unit 4 are not energized, and the DC motors 39 and 49 do not rotate.

In other words, the irradiation directions of the right lamp and the left lamp are stopped facing the front at this time.

Therefore, when the steering wheel is turned clockwise and the right steering is started from this state, the photo incluctors 13 and 16
The electrical signal sent by the terminal becomes "1" and the rOJ level (point a in FIG. 2). As a result, the output of the Nant gate 21 changes from the rlJ level to the "0" level, and the R-S
The flip-flop circuit 24 is set, and the Q output terminal 2
4q becomes the "1" level. Then, when the right steering is further performed and the point b in FIG. L
IP/DOWN counter 28 up input terminal 28u
A "1" level signal is input to the UP/DOWN counter 28, and the count value in the UP/DOWN counter 28 is counted up by 1. As a result, the decoder/driver 29 moves up the "0" level signal that it has been sending out until then and sends it out from the output terminal 29h to the output terminal 29g. However, the output terminal 29g is the same as the output terminal 29h in the processing circuit 2.
Since the motors 39 and 49 are connected to the output terminals 2b and 2e of the motors 39 and 49, no power is supplied to the motors 39 and 49, and the irradiation direction of the right lamp and the left lamp continues to be stopped while facing the front. Then, by continuing to steer to the right, the output terminals 17 and 18 of the photosensor 1 become "0" and "1".
level (0 point in FIG. 2), the reset terminal 24r of the R-S flip-flop circuit 24 becomes "0" level, the flip-flop is reset, and the Q output terminal 24q
reaches the rOJ level and prepares for the next count. When the point d in FIG. 2 is reached, the output of the Nant gate 21 changes from the "1" level to the "0" level, the R-S flip-flop circuit 24 enters the "Sef" state, and the Q output terminal 24q becomes The output of the ant gate 26 becomes "1" level again, and when the point e in FIG. Using the amplifier of this count value, the decoder/driver 29 raises the "0" level signal that had been sent out until then and sends it out from the output terminal 29g to the output terminal 29f, and drives the coil 351 of the right lamp drive unit 3 and the left lamp drive unit 3. The coil 451 of the unit 4 has a sliding contact 34a, a conductor pattern 32. Sliding contact 34b, output terminal 2a and sliding contact 44a, conductor pattern 42. A current flows through the path between the sliding contact 44b and the output terminal 2d. By energizing the coils 351 and 451, the common terminals 352c and 452C of the normally open/normally closed contacts 352 and 452 and the normally open contact terminals 352a and 452a are brought into conduction, causing the DC motors 39 and 49 to rotate. Then, the lamp drive shaft 6 and the lamp drive shaft 7 rotate clockwise. By clockwise rotation of the lamp drive shafts 6 and 7, the irradiation direction of the right and left lamps moves clockwise, and the sliding substrates 31 and 41 connect their sliding contacts 34a to 34e and 44a to 44e to the conductor pattern 32. 33 and 42. Rotate clockwise while sliding in contact with 43. Then, by moving the sliding contacts 34b and 44b away from the conductor patterns 32 and 42, the coil 3
The energization of terminals 51 and 45 is released, and the common terminals 352C and 45 of normally open and normally closed contacts 352 and 452
2C and the normally open contact terminals 352a and 452a are disconnected, and the power supply to the DC motors 39 and 49 is cut off. The DC motors 39 and 49 rotate slightly due to inertia and then stop, and the sliding substrates 31 and 41 have sliding contacts approximately at the center of the opposing gap 31a between the conductor patterns 32 and 33 and the opposing gap 41a between 42 and 43. 34b and 44
Stop with b placed. In this embodiment, at this time, the irradiation directions of the right lamp and the left lamp stop at a deflection angle position of 30 degrees in the right direction.

If you continue to steer to the right even after reaching this state,
The count value in the UP/DOWN counter 28 is sequentially increased in the same manner as described above, and the position of the "0" level signal sent by the decoder/driver 29 is at the output terminals 29e, 2.
9d...29a, but the output terminal 29a
- 29e are connected to sliding contacts 34b and 44 via output terminals 2a and 2d of the processing circuit 2, similar to the output terminal 29f.
b, the DC motors 39 and 49 do not rotate, and the irradiation directions of the right lamp and the left lamp maintain a swing angle position of 30° in the right direction.

Next, the operation when the steering wheel is rotated to the left from the straight-ahead steering position will be described. That is, when left steering is performed from point N in FIG. 2, the output terminals 17 and 18 of the photosensor 1 both go to the "1" level (point f in FIG. 2), and the output of the Nantes gate 22 goes to the rOJ level. Te, R-S
The flip-flop circuit 25 is set, and the Q output terminal 2
5q becomes the "1" level. When the point g in FIG. 2 is reached, the output terminals 17 and 18 become "1" and "0".
The level is reached, and the power of both ANDGATE 27 is "1".
level, and a signal of rlJ level is inputted to the down input terminal 28d of the UP/DOWN counter 28, and the UP
/DOWN counter 28 counts down its count value by one.

Due to this countdown, the decoder/driver 29 transfers the "0" level signal that had been sent to the output terminal 2.
From 9h onwards, the signal is transmitted down to the output terminal 29i. When the point h in FIG. 2 is reached, the output terminals 17 and 18 both go to the "0" level, the R-S flipflop circuit 25 is reset, and the Q output terminal 25q goes to the "0" level and the next Prepare for the count. When point i in FIG. 2 is reached, the count value in the UP/DOWN counter 28 is further counted down by 1, and the "0" level signal sent from the decoder/driver 29 is transferred from the output terminals 29i to 29j. and move back. As a result, the sliding contact 3 is connected to the coil 361 of the right lamp drive unit 3 and the coil 461 of the left lamp drive unit 4.
4e, i-body pattern 33. Sliding contact 34d, output terminal 2
C and sliding contact 44e, conductor pattern 43. Current flows through the path of the sliding contact 44d and the output terminal 2f, and the common terminals 362C and 4 of the normally open and normally closed contacts 362 and 462
62C and the normally open contact terminals 362a and 462a are brought into conduction, the DC motors 39 and 49 rotate, and the lamp drive shaft 6 and the lamp drive shaft 7 rotate to the left. As the lamp drive shafts 6 and 7 rotate counterclockwise, the irradiation directions of the right and left lamps move counterclockwise, and the sliding substrate 31 moves counterclockwise.
and 41 rotate counterclockwise, the sliding contacts 34d and 44d separate from the conductor patterns 33 and 43, the energization of the coils 361 and 461 is released, and the normally open/normally closed contact 36
The common terminals 362C and 462C of the DC motors 2 and 462 and the normally open contact terminals 362a and 462a are disconnected from each other, and the power supply to the DC motors 39 and 49 is cut off.

As a result, the DC motors 39 and 49 rotate slightly due to their inertia and then stop. In this embodiment, at this time, the irradiation direction of the right lamp and the left lamp is 30° to the left.
It is designed to stop at the deflection angle position.

If you continue steering to the left even after reaching this state,
The count value in the UP/DOWN counter 28 sequentially decreases in the same manner as described above, and the "0" level signal sent by the decoder/driver 29 is output to the output terminal 29, and the 2
91...290, but the output terminals 29 to 290 are connected to the sliding contacts 34d and 44 via the output terminals 2C and 2f of the processing circuit 2, like the output terminal 29j.
d, the DC motors 39 and 49 do not rotate, and the irradiation directions of the right lamp and the left lamp maintain a deflection angle position of 30° in the left direction.

In this embodiment, the operation was explained when the steering wheel was rotated clockwise and counterclockwise from the straight-ahead steering position; However, the count value in the UP/DOWN counter 28 is sequentially counted down or counted up, and the position of the output terminal at the "O" level in the decoder/driver 29 moves. However, the output terminal positions where the rOJ level is 29a to 29e,
29j to 290, the DC motors 39 and 49 are not driven again, and the right lamp and the left lamp continue to maintain the deflection angle position of 30 degrees to the right or left. Then, at the point when the count value in the UP/DOWN counter 28 decreases and the output terminal 29g of the decoder/driver 29 starts to send out a "0" level signal, or when the U
The count value in the P/DOWN counter 28 increases, and the output terminal 29i of the decoder/driver 29 becomes "0".
” level signal, the DC motor 39
and 49 are driven again, the irradiation directions of the right lamp and the left lamp are returned to facing the front, and the lamp stops.

As described above, according to the cornering lamp system according to the present embodiment, the irradiation directions of the right lamp and the left lamp can be moved and fixed to one point on the steering direction side in conjunction with the steering wheel steering starting from the straight-ahead steering position. Therefore, it can cover the movement of visibility when cornering,
Improves safety when driving at night. In other words, by simply moving and fixing the irradiation directions of the right and left lamps to a single point in the direction of travel, it is possible to ensure sufficient visibility during cornering by appropriately selecting the deflection angle position. Compared to a conventional continuously variable irradiation direction system using a servo motor or the like, the configuration is simplified, and a system with low cost and high reliability can be constructed.

Note that the rotational movement of the right lamp and left lamp in the irradiation direction by the lamp drive shafts 6 and 7 may move the entire right lamp and left lamp, but in this embodiment, visibility in the front direction is also ensured. For this purpose, a movable lamp system using a sub-reflector is adopted. That is, FIG. 3 shows an example of this sub-reflector movable lamp system, in which 51 is a main reflector, 52 is a sub-reflector, and 53 is a light source.

The sub-reflector 52 is adapted to rotate in conjunction with the lamp drive shaft 6 or 7 shown in FIG.

When the automobile is traveling straight, the directions of light reflected by the main reflector 51 and the sub-reflector 52 are in the same direction (front direction). For example, when steering to the right from such a state, the lamp drive shafts 6 and 7 rotate clockwise in conjunction with the steering wheel steering, as explained using FIG. As shown in the figure, it rotates to the deflection angle position 306 to the right and stops. In other words, while the light reflected from the main reflector 51 continues to illuminate the front, the light reflected from the sub-reflector 52 illuminates the right direction by 30°, and the total diffusion angle widens, and the light is reflected from the sub-reflector 52 to the right. Visibility in both directions is ensured. By using such a sub-reflector movable lamp system, the cornering lamp system of this embodiment can achieve a practically sufficient performance.

FIG. 5 is a circuit diagram showing another embodiment of this vehicle cornering lamp system. In this figure, the same reference numerals as in FIG. 1 indicate the same constituent elements, and the explanation thereof will be omitted.

However, in the processing circuit 2 in this embodiment, the output terminals 29a to 29f and 29j to 290 of the decoder/driver 29 are connected to the output terminals 2a and 2C via inverters 54 and 55, One ends of the relay coil 81 of the right lamp drive unit 8 and the relay coil 91 of the left lamp drive unit 9 are connected to the terminals 2a and 2C.

The right lamp drive unit 8 includes a DC motor 82 and a lamp drive shaft 83 that is rotationally driven by the DC motor 82.
A movable contact 84 is configured to rotate integrally with this lamp drive shaft 83. and,
This movable contact 84 is connected to the positive scraping side of the DC type SS, and contact portions 84a and 84b are formed at both ends of the movable contact 84.
As the lamp drive shaft 83 rotates, it comes into sliding contact with arc-shaped conductor patterns 85 and 86 arranged at its lower end. The conductor pattern 85 is connected to a normally closed contact terminal 87b of a first normally open/normally closed contact 87 driven by the relay coil 81, and its common terminal 87c is connected to one end of the DC motor 82. Further, the conductor pattern 86 is connected to a normally open contact terminal 88a of a second normally open/normally closed contact 88 driven by the relay coil 81.
The common terminal 88c is connected to the other end of the DC motor 82. The relative positional relationship between the movable contact 84 and the conductor patterns 85 and 86 is such that when power is not supplied to the relay coil 81, the normally open/normally closed contact 8
When the common terminals 87C and 88C of 7 and 88 are connected to the normally closed contact terminals 87b and 88b, the contact portions 84a and 84b are in a non-contact state and a contact state with respect to the conductor patterns 85 and 86, as shown in the figure. It's supposed to be. Then, contact portion 84b, conductor pattern 86. The current supplied through the normally open/normally closed contact 88 causes the DC motor 82 to rotate clockwise, thereby rotating the lamp drive shaft 83 to the right in the figure. Even after being separated from the pattern 86, the contact portion 84a and the conductor pattern 85 maintain their contact state. Incidentally, the DC motor 82 has a contact portion 84a+a conductor pattern 85. Needless to say, the lamp drive shaft 83 is rotated counterclockwise by the current supplied through the path of the normally open/normally closed contact 87, and the lamp drive shaft 83 is rotated to the left. and 88
The normally open contact terminal 87a and the normally closed contact terminal 88b are grounded.

Although the structure of the right lamp drive unit 8 has been described above, the structure of the left lamp drive unit 9 is similar, and each part is given a number corresponding to that of the right lamp drive unit 8, and the explanation thereof will be omitted. In this embodiment, as the lamp drive shafts 93 and 83 rotate, the left lamp system 101 and the right lamp system 100 with movable sub-reflectors as shown in FIGS. 6A and 6B are driven. That is, in the figure, 100a and 101a are main reflectors, 100b and 101b are sub-reflectors, and 100c and 101c are light sources.Light source 100c
and lens 100d and tol on the front of 101C.
d is arranged, and the lens 100d has a wave ridge portion 100d+ whose left side is kneaded and whose right side is dense when facing the front direction of irradiation.
is formed, and the lens 101d has a wave crest portion 101dl that is kneaded on the right side and dense on the left side. The sub-reflector 100b is configured to rotate clockwise (clockwise rotation in the figure) by clockwise rotation of the lamp drive shaft 83.
The sub-reflector 101b is configured to rotate counterclockwise (leftward rotation in the drawing) by clockwise rotation of the lamp drive shaft 93. In addition, sub-reflectors 100b and 101b
When the lamp drive shafts 83 and 93 are in the position shown in FIG. 5, they are stopped facing forward as shown in FIG.

The operation of the cornering lamp system configured as described above will be explained below. That is, it is assumed that the automobile is currently traveling straight ahead and the steering wheel is in the straight ahead steering position. At this time, the output terminal 29 of the decoder/driver 29
a to 29e and 29j to 29o are at the "1" level, and therefore the output levels of the output terminals 2a and 2C become the "0" level due to inversion by the inverters 54 and 55. That is, at this time, no current flows through the relay coils 81 and 91 of the right lamp drive unit 8 and the left lamp drive unit 9, and the normally open and normally closed contacts 87.88 and 97.98 maintain the state shown in the figure. Therefore, power is not supplied to the DC motors 82 and 92 from the DC power supply 5, and the lamp drive shafts 83 and 93 do not rotate, so that the sub-reflectors 100b and 101 shown in FIG.
b continues to stop facing the front. As a result, the light emitted from the light sources 100c and 101c is reflected in the same direction by the main reflector 100a, sub-reflector 10ob, main reflector 101a, and sub-reflector LO1b, and is reflected by the lenses 100d and 101.
It is irradiated in the front direction through d. At this time, lens 10
Wave crests 100dl and 101 of 0d and 101d
The light emitted through the dl is slightly diffused to the right and left through its dense portion, increasing the □total diffusion angle of the lamp system.

However, when right steering is started from such a state, the output terminal position of the two decoders/drivers at the "0" level moves from 29h to 29g, and the output terminal 29f
When the terminal starts outputting a “0” level signal, the output terminal 2
a becomes the "1" level, and the relay coil 81 of the right lamp drive unit 8 is energized. This relay coil 8
1, its normally open and normally closed contacts 87 and 8
8 common terminals 87c and 88c and normally open contact terminal 87
a and 88a become electrically connected, and the contact portion 84b of the movable contact 84 and the conductor pattern 86 . Normally open/normally closed contact 88. A drive current begins to flow through the normally open/normally closed contact 87 path. This drive current causes the DC morph 82 to rotate clockwise, causing the lamp drive shaft 83 to rotate clockwise.
Rotate the sub-reflector 100b clockwise. Due to this rotation of the sub-reflector 100b, the irradiation direction of the reflected light on the sub-reflector 100b starts to move rightward with respect to the irradiation direction of the reflected light on the main reflector 100a. As the lamp drive shaft 83 rotates clockwise, the contact portion 84a of the movable contact 84 comes into contact with the conductor pattern 85, and when the contact portion 84b separates from the conductor pattern 86, the DC motor The supply of drive current to 82 is cut off. That is, at this point, the rotational movement of the sub-reflector 100b is stopped, and the irradiation direction of the reflected light on the sub-reflector 100b is fixed at one point in the steering direction of the steering wheel. FIG. 7(b) shows the stopped state of the sub-reflector 100b at this time, and the sub-reflector 1
The reflected light at 00b is the wave peak portion 10 of the lens 100d.
The light is further diffused to the right through the dense portion of 0 dl and is emitted.

On the other hand, the relay coil 9 in the left lamp drive unit 9
1, since the output terminal 2C of the processing circuit 2 continues to maintain the rOJ level at this time, no energizing current flows, and the sub-reflector 101b of the left lamp system 101 continues to face the front direction and stop.

In other words, when right steering is performed with the straight-ahead steering position as the starting point, the sub-reflector 100 of the right lamp system 100
b only moves in conjunction with the steering wheel steering to a predetermined deflection angle position on the steering direction side and stops, and the right lamp system 100
The divergence angle expands in the steering direction, that is, in the direction of travel, ensuring visibility during cornering. At this time, the front visibility is secured by the left lamp system 101 and the main reflector 100a of the right lamp system 100, so cornering to the right can be performed more safely.

When steering to the left starting from the straight-ahead steering position, the output terminal 2C of the processing circuit 2 becomes the "1" level, and the relay coil 91 of the left lamp drive unit 9 is energized.
The lamp drive shaft 93 is driven by the DC motor 92, and the sub-reflector 101b of the left lamp system 101 rotates counterclockwise. The contact portion 94 of the movable contact 94
When b is separated from the conductor pattern 96, the DC motor 9
2 stops, and the irradiation direction of the reflected light on the sub-reflector 101b is fixed at one point on the steering direction side.

FIG. 7(a) shows the stopped state of the sub-reflector 101b at this time, and the reflected light from the sub-reflector 101b is further diffused to the left and emitted via the letter part of the wave crest part to1d+ of the lens 101d. On the other hand, since the output terminal 2a of the processing circuit 2 continues to maintain the "0" level at this time, no energizing current flows through the relay coil 81 in the right lamp drive unit 8, and the sub-reflector 100b of the right lamp system 100 Continue to stop facing forward. In other words, when left steering is performed with the straight-ahead steering position as the starting point, the sub-reflector 1 of the left lamp system 101
Only 01b moves in conjunction with the steering wheel steering to a predetermined deflection angle position on the steering direction side and stops, and the left lamp system 1
A diffusion angle of 01 spreads in the steering direction, that is, in the direction of travel, ensuring visibility when cornering. At this time, the front visibility is secured by the right lamp system 100 and the main reflector 101a of the left lamp system 101, so cornering to the left can be performed more safely.

In this embodiment, the operation was explained when the steering wheel was rotated clockwise and counterclockwise from the straight-ahead steering position; Even if the decoder/driver 29
The "0" level output terminal position is 29a to 2.
9e, 29j to 29o, the DC motors 82 and 92 are not driven again, and the right lamp system 100 and the left lamp system 101 continue to maintain fixed expanded irradiation in the right and left directions. Then, when the count value in the UP/DOWN counter 28 decreases and the output terminal 29g of the decoder/driver 29 starts to send out a "0" level signal, or when the count value in the UP/DOWN counter 28 increases. , at the point when the output terminal 29i of the decoder/driver 29 starts sending out a signal at rOJ level, the DC motor 82 or 92 moves the contact portion B4a of the movable contact 84, the B body pattern 85° normally open/normally closed contact 87. Normally open/normally closed contact 88 or movable contact 94
Contact portion 94a, conductor pattern 95, normally open/normally closed contact 9
7. The sub-reflector 100b or 101b of the right lamp system 100 and the left lamp system 101 is returned to the front facing state and then stopped.

In this embodiment, the headlamps were configured to move in conjunction with the steering wheel steering, but the direction of illumination of the headlamps was fixed toward the front as before, and the auxiliary lights (fog lamps) were moved in conjunction with the steering wheel steering. ) may be configured to be movable.

〔Effect of the invention〕

As explained above, according to the cornering lamp system for a vehicle according to the present invention, of the lighting means arranged on the left and right sides of the front of the vehicle, at least the lighting direction of the lighting means on the steering direction side is adjusted to the steering wheel steering position starting from the straight-ahead steering position. Since the irradiation direction is linked and fixed at a single point on the steering direction side, the configuration is simpler, lower cost, and more reliable than the conventional continuously variable irradiation direction system using servo motors, etc. system can be configured.

[Brief explanation of the drawing]

Fig. 1 is a circuit configuration diagram showing an embodiment of a vehicle cornering lamp system according to the present invention, Fig. 2 is an output waveform diagram of a photo sensor used in this cornering lamp system, and Fig. 3 is a diagram showing an output waveform of a photo sensor used in this cornering lamp system. Schematic diagram of the inside of the right lamp and left lamp driven by
The figure is an explanatory diagram of the operation of this right lamp and left lamp, 4th and 5th.
The figure is a circuit configuration diagram showing another embodiment of the vehicle cornering lamp system according to the present invention, FIG. 6 is a schematic configuration diagram of a right lamp and left lamp system driven using this cornering lamp system, and FIG. FIG. 3 is an explanatory diagram of the operation of the right lamp and left lamp systems. DESCRIPTION OF SYMBOLS 1... Photo sensor, 2... Processing circuit, 3... Right lamp drive unit, 4... Left lamp drive unit,
5... DC power supply, 6.7... Lamp drive shaft, 39.
49... DC motor, 51... Sub-reflector. Patent applicant Koito Manufacturing Co., Ltd. Agent Masaki Yamakawa (2 idiots) Figure 6 (0) (b) Figure 7 (C1) (b) 3G

Claims (1)

[Claims] Lighting means arranged on the left and right sides of the front of the vehicle, and irradiation that fixes the irradiation direction of at least the lighting means on the steering direction side to one point on the steering direction side in conjunction with steering wheel steering starting from the straight-ahead steering position. A cornering lamp system for a vehicle, comprising a direction variable means.