JPH0621786Y2 - Monitoring device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is suitable for use in a dual color headlamp that has both the function of a headlamp that emits white light and the function of a fog lamp that emits yellow light. The present invention relates to a monitoring device.

[Conventional technology]

In recent years, as a dual-color headlamp of this kind, a globe whose upper half is colorless and transparent and whose lower half is yellow and transparent is rotated half a turn around the bulb by switching the rotational drive position of the motor, and white light is emitted. There has been proposed a headlamp configured so as to exhibit the function of a headlamp that irradiates the light and the function of a fog lamp that irradiates the yellow light.

[Problems to be solved by the device]

However, according to such a dual-color headlamp, for example, when the motor drive device fails, the left and right dual-color headlamps may turn on in different colors, which may cause dazzling a vehicle traveling from the front.

[Means for Solving the Problems]

The present invention has been made to solve such a problem, and the first invention thereof is to change the rotational drive position of the first motor according to the switching operation from the first mode position to the second mode position. A first motor drive circuit that switches from a first drive position to a second drive position, and a rotational drive position of a second motor from the first drive position to a second drive position according to the switching operation. It consists of a second motor drive circuit to switch,
It is provided with a plurality of light sources that are turned on or off depending on the driving positions of the first and second motors.

A second invention thereof is a first light source turned off at a second drive position of the first motor, a second light source turned off at a first drive position of the first motor, and a second light source. The third light source is turned off at the second drive position of the motor, and the fourth light source is turned off at the first drive position of the second motor.

[Action]

Therefore, according to the first invention of the present application, it is possible to visually recognize the driving states of the first and second motors based on the display states of the plurality of light sources that are turned on or off depending on the driving positions of the first and second motors. Become.

Further, in the second invention of the present application, when the first and second motors are in the first drive position, the first and third light sources are turned on and the second and fourth light sources are turned off. Becomes Further, when the first and second motors are in the second drive position, the second and fourth light sources are turned on and the first and third light sources are turned off. And
When the first and second motors are in the moving state to the first and second driving positions, the first, second, third and fourth
All of the light sources are turned on.

That is, if normal, the first and second light sources and the third light source
And the display states of the fourth light source and the fourth light source are synchronously coincident with each other as described above, and if abnormal, the display states of the first and second light sources and the third and fourth light sources are inconsistent or all are off. Therefore, based on the display status of these light sources,
Further, it becomes possible to visually recognize the driving status of the second motor.

〔Example〕

 Hereinafter, the monitoring device according to the present invention will be described in detail.

FIG. 2 is a vertical sectional view showing an embodiment of a dual color headlamp to which this monitoring device is applied, and FIG.
It is the III-III sectional view taken on the line in the figure. In the figure, reference numeral 1 denotes a lamp body formed in a substantially horizontally long rectangular shape on the front surface, and a reflecting mirror 2 inside the lamp body.
And the H4 halogen lamp 3 with a socket integrated in the rear opening 2a of the reflecting mirror 2.
Then, the yellow globe 4 is installed on the outer peripheral position of the bulb 3 concentrically with the bulb 3 so as to be movable back and forth along the optical axis direction (P), and the front lens 5 is attached to the front opening of the lamp body 1. By mounting, a square headlamp (dual color headlamp) having one lamp chamber 7 is configured.

The reflecting mirror 2 has a front opening of a substantially horizontally long rectangular shape corresponding to the lamp body 1, and its upper wall portion 2b and lower wall portion 2c are formed in a flat shape that does not directly contribute to light distribution, and its lower wall. A mechanism for moving the yellow glove 4 back and forth along the optical axis in the portion 2c, that is, the control unit A
Are assembled together.

The yellow goulob 4 is made of a transparent glass material or resin material colored yellow, and is formed in a cylindrical shape having a diameter slightly larger than the outer diameter of the bulb 3, and the entire glass portion 3b except the shade portion 3a of the bulb 3. Is formed to have a length that can substantially cover, and is fixedly supported by the globe holder 6 of the control unit A.

The control unit A includes a glove holder 6 for holding the yellow glove 4, and the glove holder 6 for the glove holder 6.
A mechanism for moving back and forth along the optical axis direction, that is, a guide rail 9 protruding from the upper surface of the control box 8 along the optical axis direction for holding the globe holder 6 movably back and forth, and inside the control box 8. A drive screw 10 arranged in parallel with the guide rail 9, a moving piece 11 screwably connected to the drive screw 10 to move the globe holder 6 back and forth, and a drive screw 10.
A drive motor 12R for rotating the drive motor 12R in the forward and reverse directions, and a motor drive circuit 13R for controlling the drive motor 12R, and at the back side opening edge portion of the mounting elongated hole 14 formed in the lower wall portion 2c of the reflecting mirror 2, It is assembled integrally with screws 15. That is, the control unit A includes the lower wall portion 2c of the reflecting mirror 2 except for the globe holder 6.
It is housed in the back recess 2'c.

The globe holder 6 is located above the mounting long hole 14 of the reflecting mirror 2 and has a pedestal portion 6a for mounting and fixing the yellow globe 4, and a bulging portion horizontally extending from the bottom portion of the pedestal portion 6a to the left and right sides. Edge 14a of the long hole 14 for mounting the reflecting mirror 2
Support flanges 6b and 6'b held between the upper surface of the control box 8 and the control box 8, and a mounting member 6c for fixing the yellow globe 4 to the pedestal portion 6a. An engaging groove 6d that fits and engages with the guide rail 9 protruding to the upper surface of the control box 8 is formed at the center of the bottom of the pedestal portion 6a so as to penetrate along the longitudinal direction. A connecting hole is formed in one of the support flanges 6b, and the moving piece 11 is inserted and connected in the connecting hole.

The drive screw 10 is disposed inside the control box 8 in parallel with the guide rail 9 and is freely rotatable in the forward and reverse directions. A gear 16 is fixed to one end of the drive screw 10, and a reduction gear 17 is interposed in the gear 16. And a pinion gear 18 of a motor 12R is meshed with the drive screw 10. A moving piece 11 for moving the globe holder 6 back and forth along the optical axis direction is screwed and connected to the drive screw 10.

A motor drive circuit 13R that controls the drive motor 12R to rotate the drive screw 10 in forward and reverse directions.
As shown in FIG. 1, the rotary contact plate 13Ra, the common fixed contact plate 13Rb ₁ and the forward rotation fixed contact plate 13Rb ₂
, Fixed contact plate 13Rb ₃ for reverse rotation, and normally open / normally closed contact 1
A relay 13Rc provided with 3Rc _-1 , 13Rc _-2 ,
It is composed of diodes 13Rd _{1 to} 13Rd ₃ . The rotary contact plate 13Ra is integrally attached to the back side of a spur gear 22 that is screwed and connected to an aworm gear 20 fixed to the other end side of the drive screw 10 via a wheel gear 21, and the common fixed contact plate 13Rb ₁ , Forward rotation fixed contact plate 13Rb ₂ , reverse rotation fixed contact plate 13Rb ₃ , relay 13
The Rc and the diodes 13Rd _{1 to} 13Rd ₃ are built on the printed board 13Re, and the printed board 13Re is fixed in the control box 8.

A gear 23 is fixed to the other end of the drive screw 10, and the gear 23 is meshed with the auxiliary gear 24. The auxiliary gear 24 is attached to the control box 8 by means of two bearings 25 and 26 connected in a fastener-like manner.
The two bearings 25 and 26 are mounted so as to rotate together. By forming the groove 27 in one of the bearings 25, even if the drive motor 12R or the motor drive circuit 13R fails, the groove 2 of the bearing 25 is formed.
7 is engaged with a bit of a driver (tool) to rotate the auxiliary gear 24, the drive screw 10 is rotated in the forward and reverse directions via the gear 23, and the position of the globe holder 6 or the yellow globe 4 is freely set. It is supposed to be able to move back and forth.

Thus, the dual color headlamp 100R configured as described above is used as a right headlight, and the dual color headlamp 100L configured similarly to the dual color headlamp 100R is used as a left headlight, as shown in FIG. The circuit is connected.

That is, in FIG. 1, 30 is a lighting switch that is turned on at night, 31 is a function changeover switch, 32 is an indicator portion for the dual color headlamp 100R (hereinafter, referred to as a right indicator), and 33 is a dual color. It is an indicator portion for the headlamp 100L (hereinafter, referred to as a left side indicator), and in the dual color headlamps 100R and 100L, the common fixed contact plates 13Rb ₁ and 13Lb ₁ formed in a ring shape are the lighting switches. It is connected via 30 to the positive polarity side of the battery power supply. Then, as sliding contact with the entire circumference of the common fixed contact plate 13Rb ₁ and 13Lb _1, the motor 1
Flat rotating contact plates 13Ra and 13La that rotate in synchronism with 2R and 12L are provided. One ends 13Ra ₁ and 13La of the rotating contact plates 13Ra and 13La are at the first rotation angle position I shown by the solid line in the drawing. _An arc-shaped fixed contact plate 1 for forward rotation, in which ₁ independently contacts.
3Rb ₂ and 13Lb ₂ are arranged. Further, at the second rotation angle position II of the rotating contact plates 13Ra and 13La shown by the two-dot chain line in the figure, the other ends 13Ra ₂ and 13La ₂ are in contact with each other independently, and the arc-shaped fixed contact plates for reverse rotation 13Rb ₃ and 13Lb ₃ is arranged. Then, the fixed contact plates for forward rotation 13Rb ₂ and 13L
b ₂ is normally open, normally closed contact 13Rc _-2 and 13Lc _-2
Connected to the normally open contact terminals f and f ′, and the fixed contact plates 13Rb ₃ and 13Lb ₃ for reverse rotation are normally open / normally closed contacts 13.
Rc- ₁ and 13Lc- ₁ are connected to normally closed contact terminals b and b ', and normally open / normally closed contacts 13Rc- ₁ and 1
The common contact terminals a and a ′ of 3Lc ₋₁ are the motor 12
R and 12L are connected to one end, and the other ends of the motors 12R and 12L are normally open / normally closed contacts 13Rc- ₂ and 13
It is connected to the common contact terminals d and d'of Lc- ₂ . And normally open / normally closed contacts 13R- ₁ and 13L
The normally open contact terminals c and c ′ of c ₋₁ and the normally closed contact terminals e and e ′ of the normally open / normally closed contacts 13Rc ₋₂ and 13Lc ₋₂ together with one end of each coil of the relays 13Rc and 13Lc It is assumed that the power supply is connected to the negative polarity side, and the other ends of the coils of the relays 13Rc and 13Lc are connected to the positive polarity side of the battery power supply via the function changeover switch 31.

On the other hand, the right side indicator 32 and the left side indicator 3
3 is a two-color LED, and the right-side indicator 32 emits "red" light-emitting diode LED1.
The cathodes of the (first light source) and the light emitting diode LED2 (second light source) that emits "green" are grounded via the resistor R1, and the anode thereof is the diode 13Rd ₂
And 13Rd ₃ to the fixed contact plate 13Rb ₂ for forward rotation and the fixed contact plate 13Rb ₃ for reverse rotation of the dual color headlamp 100R. Further, in the left side indicator 33, the cathodes of the light emitting diode LED3 (third light source) emitting “red” and the light emitting diode LED4 (fourth light source) emitting “green” are resistors R2.
It is grounded through and its anode is diode 1
It is connected to the forward fixed contact plate 13Lb ₂ and the reverse fixed contact plate 13Lb ₃ of the dual color headlamp 100L via 3Ld ₂ and 13Ld ₃ .

Next, the operation of the dual color headlamps 100R and 100L having such circuit connections will be described.

Now, with the lighting switch 30 and the function changeover switch 31 in the off state, the rotary contact plates 13Ra and 13La are rotated.
Is stopped at the first rotation angle position I. When the lighting switch 30 is turned on from such a state, the dual color headlamp 100R (100R
L), the common fixed contact plate 13Rb ₁ (13Lb
₁₎ - rotating cut point plate 13Ra (13La) - regular rotation stationary contact plates 13Rb ₂ (13Lb ₂₎ - diode 13Rd ₂
(13Ld ₂ ) -Light emitting diode LED1 (LED3)
A current flows in the path of the resistor R1 (R2), the light emitting diodes LED1 and LED3 of the right indicator 32 and the left indicator 33 are illuminated in red, which leads to the dual color headlamps 100R and 10;
Indicates that 0L has a fog lamp function. That is, at the current rotational drive position (first drive position) of the drive motors 12R and 12L, the yellow globe 4 almost completely covers the entire glass portion 3b of the bulb 3 as shown by the chain double-dashed line in FIG. The light P from the bulb 3 is retracted to a position where
Is colored yellow through and enters the reflecting mirror 2,
Then, the yellow light is emitted to the front and the function of the fog lamp is exhibited.

On the other hand, when the function changeover switch 31 is turned on, in the dual color headlamp 100R (100L), the relay 13Rc (13Lc) operates and its normally open
Normally closed contacts 13Rc- ₁ , 13Rc- ₂ (13Lc- ₁ ,
13Lc ₋₂ ) connection mode is switched, and fixed contact plate for common 13Rb ₁ (13Lb ₁ ) −rotating contact plate 13Ra.
(13La) -Fixed rotation fixed contact plate 13Rb ₂ (13Lb
₂ ) -Normally open / normally closed contact 13Rc- ₂ (13Lc- ₂ )-
Drive motor 12R (12L) -normally open / normally closed contact 13Rc
₋₁ (13Lc ₋₁ ) of the current flows through the drive motor 12R (12L) and the drive screw 10 (10) to rotate in the forward direction, and at the same time, the drive screw 10 (10).
The rotating contact plate 13Ra (13La) starts to rotate in the direction of arrow n via the spur gear 22 (22).
Then, as the rotary contact plate 13Ra (13La) rotates, the other end 13Ra ₂ (13La ₂ ) comes into sliding contact with the reverse rotation fixed contact plate 13Rb ₃ (13Lb ₃ ) and the rotary contact plate 13Ra (13La) is rotated. The fixed contact plate for common 13Rb ₁ (13Lb ₁ ) -rotating contact plate ₁ by sliding contact with the fixed contact plate 13Rb ₃ for reverse rotation (13Lb ₃ ).
3Ra (13La) -reverse fixed contact plate 13Rb ₃ (1
3Lb ₃ ) -Diode 13Rd ₃ (13Ld ₃ ) -Light emitting diode LED2 (LED4) -Resistance R1 (R2)
A current also flows through the path of, and the light emitting diodes LED2 and LED4 of the right indicator 32 and the left indicator 33 are turned on in green. That is, in the right side indicator 32, the light emitting diodes LED1 and LED2 light up at the same time, and in the left side indicator 33, the light emitting diodes LED3 and LED
4 and 5 light up at the same time and these indicators 32 and 3
Since each of 3 is configured as a 2-color LED,
The display color becomes an intermediate color (orange) between red and green, indicating that the drive motors 12R and 12L are being rotationally driven, that is, the yellow globe 4 is being moved by the dual color headlamps 100R and 100L.

Thus, the rotary contact plate 13Ra (13La) further rotates, and one end 13Ra of the rotary contact plate 13Ra (13La) is rotated.
₁ (13La ₁ ) is the fixed contact plate for normal rotation 13Rb ₂ (13
When it separates from Lb ₂ ), the current to the drive motor 12R (12L) is cut off and the drive motor 12R (12L) stops. That is, the rotary contact plate 13Ra (13
La) is the second rotational angular position II indicated by the two-dot chain line in the figure
The fixed contact plate for common 13
Rb ₁ (13Lb ₁ ) -Rotating contact plate 13Ra (13L
a) - regular rotation stationary contact plates 13Rb ₂ (13Lb ₂₎ - diode 13Rd ₂ (13Ld ₂₎ - light-emitting diodes L
The current in the path of ED1 (LED3) -resistor R1 (R2) disappears, and the light emitting diodes LED1 and LE in the right indicator 32 and the left indicator 33 disappear.
D3 goes out and light emitting diodes LED2 and LED4
Only the green light turns on, indicating that the dual color headlamps 100R and 100L exhibit the headlamp function. That is, the drive motors 12R and 1
At the 2L stop position (second drive position), the yellow globe 4 is advanced to a position where the entire glass portion 3b of the bulb 3 can be completely exposed as shown by the solid line in FIG. The light P is directly incident on the reflecting mirror 2 and is radiated forward as white light by the reflecting mirror 2 to exert the function of the headlamp.

When the function changeover switch 31 is turned off in this state, the normally open / normally closed contact 13 of the relay 13Rc (13Lc)
Rc- ₁ , 13Rc- ₂ (13Lc- ₁ , 13L
c- ₂ ) The connection mode is switched to the original state, and the common fixed contact plate 13Rb ₁ (13Lb ₁ ) -rotating contact plate 13R.
a (13La) - reverse fixed contact plate 13Rb ₃ (13L
b ₃₎ - normally open, normally closed contact _{13Rc -1} (13Lc -1)
-Drive motor 12R (12L) -Normally open / normally closed contact 13R
A current flows through the path of c ₋₂ (13Lc ₋₂ ), the drive motor 12R (12L) rotates in the reverse direction, and at the same time, the rotary contact plate 13Ra (13La) rotates in the direction of arrow m,
The other end 13Ra _{2 of the} rotating contact plate 13Ra (13La) (1
3La ₂ ) is a fixed contact plate for reverse rotation 13Rb ₃ (13L
Away from b _3), a driving motor 12R (12L) is stopped. In this case, the one end 13Ra ₁ (13La ₁ ) of the rotating contact plate 13Ra (13La) is rotated by sliding contact with the fixed rotation contact plate 13Rb ₂ (13Lb ₂ ) for forward rotation.
In the right-side indicator 32 (left-side indicator 33), the light-emitting diode LED1 (LED3) is additionally lit to make the display color orange, and the dual-color headlamp 1
The moving state of the yellow globe 4 at 00R and 100L is displayed. Further, the other end 13Ra ₂ (13La ₂ ) of the rotating contact plate 13Ra (13La) is the fixed contact plate 13 for reverse rotation.
At the time of leaving Rb ₃ (13Lb ₃ ), the light emitting diode LED2 (LED4) is turned off in the right indicator 32 (left indicator 33), and only the light emitting diode LED1 (LED3) is lit in red, whereby the dual color headlamp 100R and It is displayed that 100L exhibits the fog lamp function. It should be noted that the length θ of the forward rotation fixed contact plates 13Rb ₂ and 13Lb ₂ and the reverse rotation fixed contact plates 13Rb ₃ and 13Lb ₃ is determined by the longitudinal movement distance L of the globe holder 6, the pitch of the drive screw 10, the worm gear 20, and the wheel gear 21. , Is determined by the reduction ratio between the spur gears 22.

As described above, according to this embodiment, “red” is used when the fog lamp function is exerted, “green” is used when the head lamp function is exerted, and the fog lamp function (headlight function) is exerted.
During the switching from the headlamp function (fog lamp function) to "orange", the dual color headlamp 1
When both 00R and 100L are normal, the display colors of the right side indicator 32 and the left side indicator 33 coincide with each other in synchronization. On the other hand, when the dual color headlamp 100R or 100L is abnormal, the display colors of the right indicator 32 and the left indicator 33 do not match as shown in the table below. The dual color headlamps 100R and 1
If both 00L are abnormal, the right side indicator 3
There may be a state in which all of the light emitting diodes LED1 to LED4 of the second and left indicators 33 are turned off.

That is, according to the present embodiment, by comparing the display color of the right side indicator 32 and the display color of the left side indicator 33, it is possible to judge the abnormality of the dual color headlamps 100R and 100L with reference to the above table. It becomes possible to detect the abnormal state and quickly deal with the dazzling to the oncoming vehicle.

In this embodiment, the dual color headlamps arranged on the left and right are described as an example, but it may be configured as a monitoring device for opening and closing the covers of the fog lamps arranged on the left and right. That is, as long as the rotational drive positions of a plurality of motors are synchronously switched, the invention can be applied to various devices.

[Effect of device]

As is apparent from the above description, according to the monitoring device of the present invention, in the first device, the first and second light sources are turned on or off depending on the driving positions of the first and second motors. Since it becomes possible to visually check the driving status of the second motor, when this is applied to, for example, the dual color headlamps arranged on the left and right, the abnormal state can be detected and the glare given to the oncoming vehicle can be quickly detected. You will be able to deal with it.

Further, in the second invention, the display states of the first and second light sources and the third and fourth light sources are synchronously coincided with each other if normal, and if abnormal, with the first and second light sources. Light source and third
Since the display statuses of the second and fourth light sources do not match or all of them are turned off, the driving statuses of the first and second motors can be visually recognized based on the display statuses of these light sources. When applied to the dual color headlamp, the abnormal state can be detected and the dazzling given to the oncoming vehicle can be quickly dealt with.

[Brief description of drawings]

FIG. 1 is a circuit connection diagram showing an embodiment of a monitoring device according to the present invention, which is applied to left and right dual color headlamps, and FIG. 2 is a longitudinal section showing an embodiment of the dual color headlamps. Plan view, FIG. 3 is in FIG.
It is a III-III sectional view taken on the line. 12R, 12L ... Drive motor, 13R, 13L ... Motor drive circuit, 13Ra, 13La ... Rotating contact plate, 1
3Rb ₁ , 13Lb ₁ ... Common fixed contact plate, 13Rb
₂ , 13Lb ₂ ... fixed contact plate for forward rotation, 13Rb ₃ , 1
3Lb ₃ ... Fixed contact plate for reverse rotation, 13Rc, 13Lc ...
… Relay, 31 …… Function changeover switch, 32 …… Right side indicator, 33 …… Left side indicator, LEDs 1-L
ED4 ... Light emitting diode, 100R ... Dual color headlamp (right headlamp), 100L ... Dual color headlamp (left headlamp).

Claims (2)

[Scope of utility model registration request] 1. A rotational drive position of a first motor is set to a first position in response to a switching operation from a first mode position to a second mode position.
A first motor drive circuit for switching from the first drive position to the second drive position, and a first motor drive circuit for switching the rotational drive position of the second motor from the first drive position to the second drive position in response to the switching operation. And a first motor drive circuit
And a plurality of light sources that are turned on or off depending on the driving position of the second motor. 2. A rotational drive position of a first motor is set to a first position in response to a switching operation from a first mode position to a second mode position.
A first motor drive circuit for switching from the first drive position to the second drive position, and a first motor drive circuit for switching the rotational drive position of the second motor from the first drive position to the second drive position in response to the switching operation. A second motor drive circuit, a first light source that is turned off at a second drive position of the first motor, and the first
A second light source that is turned off at the first drive position of the motor of
A monitor comprising a third light source turned off at a second drive position of the second motor and a fourth light source turned off at a first drive position of the second motor. apparatus.