JPS585809B2 - Concealed headlamp device - Google Patents

Abstract

PURPOSE:To light a head lamp retracted in the upper side direction after the completion of retraction, by providing a light switch for controlling the turning-on/off of the lamp in response to a drive of a motor and a motor switch corresponding to the head lamp. CONSTITUTION:Retract motors M1, M2 are started when a lighting switch 22 is turned to UP to expose head lamps 15, 16 and turn on light switches 17, 18. However a head lamp relay 6 is not operated and the lamps are not lit. When next the switch 22 is in T position, a tail lamp relay 5 is operated, and when the switch 22 is in H position, contacts T and H are earthed to operate the head lamp relay 6. Then, when in OFF position of the switch 22 a dimmer switch 23 is turned from HL to HF, the head lamps 15, 16 are exposed to operate the head lamp relay 6. Thus, since the lamps are lit after the completion of the exposure, a driver in a car running in the opposite direction is not dazzled.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a concealed headlamp device, and more particularly to a concealed headlamp device suitable for ensuring that a headlamp hidden in the body of an automobile or the like is turned on when exposed. .

Concealed headlamps are hidden by the vehicle body when the headlamps are turned off, and exposed from the vehicle body by a drive motor (retractor motor) when the headlamps are turned on.

Also when the headlamp is hidden from the exposed state, the headlamp is driven to be hidden by the drive motor.

The concealed headlamp device needs to control the driving of the headlamp as well as control the turning on and off of the headlamp.

Therefore, devices have been proposed that can control driving and lighting of a headlamp with a single operating lever.

However, since this device controls the lighting of the left and right headlamps at the same time, if there is a difference in the drive speed of the motors that drive the left and right headlamps, one headlamp may not be fully exposed. Particularly when the irradiation surface of the headlamp is exposed from the upper side of the vehicle toward the front, it has the disadvantage of emitting dazzling light to oncoming vehicles.

The present invention has been made to eliminate the drawbacks of the conventional devices, and an object of the present invention is to provide a concealed headlamp device that does not turn on unless the concealed headlamp is completely exposed.

The present invention provides a plurality of independent headlamps that are installed on a vehicle body so that they can be hidden or exposed, a headlamp lighting circuit that lights up the headlamps, a motor that drives the headlamps to be concealed or exposed, and a motor that drives the motor. In the concealed headlamp device equipped with a motor drive circuit, the motor and the motor drive circuit are provided corresponding to each headlamp, and each motor drive circuit is configured to operate in accordance with the drive of each motor. A tractor switch is provided in the headlamp lighting circuit to cut off each motor drive circuit after driving to conceal or expose the headlamp, and to turn off the lighting circuit for each headlamp after each headlamp is driven to expose. The above objective is achieved by providing a light switch that closes and closes.

Embodiments of the concealed headlamp device according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a circuit diagram of a concealed headlamp device according to the present invention.

In Figure 1, battery 1 has fusible link 2.
, 3, and fuse 4 are connected to each other.

The fusible link 2 is connected to a tail lamp relay 5 and a head lamp relay 6.

The fusible link 3 is connected to brake relays 8 and 9 of the light retractor relay 7.

The fuse 4 is connected to a light retractor control relay circuit 10.

A contact T5 of the tail lamp relay 5 is connected via a fuse 11 to a tail lamp 12, which is one of the small lamps.

A contact T6 of the headlamp relay 6 is connected to a dimmer relay 13.

The contact Tu of the day relay 13 is connected to the fuses 14a, 14.
It is connected to high beam lamps 15u and 16u of headlamps 15 and 16, which are installed on the left and right sides of the front of the vehicle and driven to be concealed or exposed by a motor, through contact point TI
headlamp 15. through fuses 14c and 14d.
It is connected to 16 low beam lamps 15l and 16l.

Lamps 15u, 15l and lamps 16u, 16l are respectively connected to contacts T17a, T18a of a light switch 17.18 built into the tractor motor, which will be described later, and contact T1 is always in contact with conductive sliding plates 17S, 18S.
7b and T18b are grounded.

Contact T17a. T18a is the insulation part 1 in FIG.
It is in contact with 7i and 18i.

Contacts T8c and T are common contacts of brake relays 8 and 9
9c is connected to tractor motors M1 and M2 for driving the headlamps 15 and 16 to conceal or expose them, respectively.

Coils L8 and L9 are connected to retractor motors M1 and M, respectively.
2 and is connected to contacts T19c and T20c, which are common contacts of tractor switches 19 and 20.

Contacts T8a and T9a are connected to coil L8. Connected to L9. ,
Contact Tab. T9b is grounded.

Insulating parts 19i, 20i of retractor switch 19.20
is the retractor motor M1 along with the sliding plates 19S and 20S,
It rotates half a rotation (180 degrees) by rotating M2 once.

The sliding plates 17S and 18S of the light switches 17 and 18 also rotate by half a rotation due to the rotational drive of the retractor motors M1 and M2.

Down contact T19d of retractor switch 19.20,
T20d is the diodes D1 and D2, and the normally closed contact T2 of the relay 21 of the light retractor control relay circuit 10.
1 to the OFF contact of the lighting switch 22.

Retractor switch 19.20 up contact T19u,
T20u is connected to the transistor Tr1 of the write retractor control relay circuit 10 via diodes D3 and D4.
is connected to the contact UP of the lighting switch 22.

The contact T of the lighting switch 22 is connected to the coil L5 of the tail lamp relay 5, the contact H to the coil L6 of the headlamp relay 6, the diode D5 of the light retractor control relay circuit 10, and the contact HF1 of the daylight switch 23, respectively.

Although not shown, the lighting switch 22 can be used to switch the lighting operation lever to "OFF", "UP", and "T".
” and “H”, the grounded contact piece T22C of the lighting switch 22 comes into contact with two contacts.

That is, when the writing operation lever is set to the "OFF" position, the contact piece T22C contacts the contact E, which is the OFF contact and the open contact, and when it is set to the "UP" position, the contact E is contacted.
and contact UP.

Similarly, if the lighting operation lever is set to the "T" and "H" positions, the contact piece T22C will move to the contact UP and contact T, respectively.
, contacts contact point T and contact point H.

Although not shown in the drawings, the dimmer switch 23 switches the grounded contact piece T by operating the dimmer operating lever to the positions labeled "HU", "HL", and "HF".
23C are contact points HU and 23C corresponding to the display positions, respectively.
Contact HL and contacts HF1 and HF2.

Contact HU and contact HF2 are coil L1 of day relay 13.
Connected to 3.

The coil L21 of the relay 21 of the light retractor control relay circuit 10 is connected to the collector of the transistor Tr2 for driving the relay 21.

Resistors R1 and R2 and resistors R3 and R4 are connected to the bases of transistors Tr1 and Tr2, respectively.

Resistors R1 and R3 are connected to the collector of transistor Tr3.

The base of the transistor Tr3 is connected to a capacitor C3 and a resistor R6 via capacitors C1 and C2 and a resistor R5.

When the cathode of the diode D5 is grounded, the light retractor control relay circuit 10 connects the resistors R5 and R6.
Since a bias voltage is applied to the transistor Tr3 by the capacitor C3, the transistor Tr3 is turned on.

As a result, bias voltages are applied to the transistors Tr1 and Tr2 by the resistors R1, R2, R3, and R4, respectively, so that the transistors Tr1 and Tr2 are turned on.

When transistor Tr2 is turned on, relay 21 is driven and contact T21 is opened.

When the ground of diode D5 is opened, capacitor C3
Since the ON state of the transistor Tr3 is maintained for a certain period of time (about 2 to 4 seconds) by the charged electric charge, the contact T21 of the relay 21 closes after the certain period of time has elapsed.

FIG. 2 is a sectional view of a main part of the retractor motor shown in FIG. 1, with the headlamp exposed.

In FIG. 2, the final gear portion 3 of the retractor motor M1
0 is provided with a sliding plate 19S of the tractor switch 19 and a sliding plate 17S of the light switch 17, which rotate in synchronization with the final gear 31.

The final gear 31 is a gear having a constant reduction ratio with respect to the gear for driving the headlamp 15.16, and rotates by half a rotation when the retractor motor M1 drives the headlamp 15.16 to hide or expose.

An insulating section 19 is provided on the sliding plate 19S of the retractor switch 19.
1 is provided, contact T19c, down contact T19
d, the up contact T19u is arranged so as to contact the sliding plate 19S or the insulating part 19s, respectively.

The contact T17b of the light switch 17 is arranged so as to be in constant contact with the sliding plate 17S, and the contact T17a is arranged so as to be in constant contact with the sliding plate 17S.
S or insulating portion 17i.

In FIG. 2, the same or equivalent parts as shown in FIG. 1 are denoted by the same reference numerals.

Further, the retractor motor M2 has the same configuration as the retractor motor M1.

The action will be explained below.

First, the lighting control lever is in the "OFF" position, which is the state shown in Figure 1, and the lighting control lever is in the "H" position.
L” position and headlamp 15.16 is hidden, battery 1 → fusible link 3 → brake relay 8.9 coils L8, L9 → retractor switch 19.20 contacts T19c, T20c → Down contacts T19d, T20d → diodes D1, D2 → contact T
In the first loop circuit consisting of 21→contact OFF→ground, down contacts T19d and T20d are insulated parts 19i and 20
Since it is in contact with i, it is cut off, and the battery 1 → fusible link 3 → brake relay 8, 9 coil L
8, L9 → Retractor switch 19.20 contact T19
The second loop circuit consisting of C, T20C→up contacts T19u, T20u→diodes D3, D4→contact UP→earth is also cut off because contact UP is open.

Therefore, the headlamps 15, 16 remain hidden since the retractor motors M1, M2 do not operate.

Further, since the circuit between the tail lamp 12 and the head lamp 15.16 is also cut off, the tail lamp 12 and the head lamp 15.16 are turned off.

Next, when the lighting operation lever is moved to the "UP" position, the contact UP is grounded, so the circuit of the second loop becomes energized, and the brake relays 8 and 9 are activated.
Contacts T8c and T9c switch to contacts T8a and T9a.

Therefore, the retractor motors M1 and M2 are started and the head lamps 15 and 16 are exposed in about 0.6 seconds.

At the same time, the sliding plates 198, 20S of the retractor switches 19, 20 and the sliding plates of the light switch 17.18 turn half a turn, and the insulating parts 19i, 20i of the retractor switches 19, 20 connect to the up contacts T19u, T20, respectively.
u and slide plate 17S of light switch 17, 18
, 18S contact the contacts T17a and T18a, respectively.

Up contacts T19u and T20u are respectively insulating parts 19i
, 20i, the circuit of the second loop becomes de-energized, and the contacts T8c and T9c switch to the contact T8.
b, to switch to T9b side, retractor motor M1
, M2 stops.

In addition, the sliding plates 17S and 18 of the light switches 17 and 18
S are in contact with contacts T17a and T18a, respectively, but in this state headlamp relay 6 is not activated, so headlamps 15 and 16 are turned off.

The tail lamp is also off because the tail lamp relay 5 is not activated.

Next, move the lighting control lever to the “T” position.
Contact UP and contact T are grounded.

Therefore, the tail lamp relay 5 is activated and the tail lamp 12 is turned on.

The headlamps 15 and 16 are turned off because the headlamp relay 6 is not activated in this state.

In addition, the contact OFF is in the open state, and the up contact T19u
, T20u are in contact with the insulating parts 19i, 20i, so the circuits of the first and second loops are in a non-energized state.

Therefore, the retractor motors M1 and M2 remain stopped.

Next, move the lighting control lever to the “H” position.
Since the contacts T and H are grounded, the headlamp relay 6 is activated and the low beam headlamps 15l and 16l of the headlamps 15 and 16 are turned on.

The tail lamp 12 remains lit.

At this time, if the dimmer control lever is set to the "HU" position, the contact HU is grounded, so the dimmer relay 13 is activated, and the headlamp 1 for the high beam of the headlamp 15.16 is activated.
5u and 16u light up.

Furthermore, if the daylight operation lever is alternately switched between the "HL" and "HF" positions, the high beam headlamps 15u, 16u and the low beam headlamps 15l, 16l flash alternately in response to the switching operation.

Note that since the circuits of the first and second loops are in a de-energized state, the retractor motors M1 and M2 remain stopped.

Also, at this time, the diode D5 of the light retractor control relay circuit 10 is grounded, so the transistors Tr1, Tr2, and Tr3 are turned on, the relay 21 is operated, and the contact T21 is opened.

・Contact T21 is open when the lighting operation lever is in the "H" position, and the contact T21 is in the open state when the lighting operation lever is in the "H" position.
After a certain period of time has elapsed after being released from the "H" position, it returns to the idle state.

When the lighting control lever is returned to the “T” position, contact H
is opened, contacts T and UP are grounded, and headlamps 15 and 16 are turned off.

Next, when the lighting operation lever is returned to the "UP" position, the contact T is opened and the contact UP is grounded, so that the tail lamp 12 is turned off.

Note that even if contact UP is grounded, retractor switch 1
Up contacts T19u and T20u of 9 and 20 are insulating part 19
i, 20i, the circuit of the second loop is de-energized and the retractor motors M1, M2 do not operate.

When the lighting control lever is returned to the "OFF" position, contact UP is opened and contact OFF is grounded, so the first loop circuit becomes energized, and the retractor motors M1 and M2 start to turn on the headlamp 15. .16 is hidden.

At the same time, the sliding plates 19S, 20S of the retractor switches 19, 20 and the sliding plates 17S, 18S of the light switch 17.18 rotate half a turn, and the retractor switch 19.
20 insulating parts 19i, 20i are down contacts T19d, T
20d, contact T1 of light switch 17.18
7a and T18a contact insulating parts 17i and 18i.

As a result, the circuit of the first loop becomes de-energized, so the retractor motors M1 and M2 stop.

Next, when the lighting control lever is in the "OFF" position, the bashing operation of the headlamps 15 and 16 can be performed by simply momentarily operating the daylight control lever from the "HL" position to the "HF" position.

In other words, when the deima control lever is set to the "HF" position,
Since the contacts HF1 and HF2 of the dimmer switch 23 are grounded, the diode D5 of the light retractor control relay circuit 10 is grounded, and the transistors Tr1 and Tr
2. Tr3 turns ON.

When the transistor Tr1 is turned on, the retractor motors M1 and M2 are started by the same effect as when the lighting operation lever is changed from the "OFF" position to the "UP" position, and the headlamps 15 and 16 are exposed.

Also, at this time, since the contacts HF1 and HF2 are grounded, the headlamp relay 6 and daim relay 13 are activated, and the high beam headlamp 15u of the headlamp 15.16,
16u lights up.

Note that when the retractor motors M1 and M2 operate, the contacts T19c and T20c of the retractor switch 19.20 and the down contacts T19d and T20d are brought into conduction, but when the transistor Tr2 is turned on, the relay 21 is activated and the contact T21 is opened. becomes the state of

Therefore, the circuit of the first loop becomes de-energized, and the driving of the retractor motors M1 and M2 is stopped.

The deima control lever is returned to the "HL" position, and the contact HF
1. Even after HF2 is opened, the transistor Tr3 remains on for a certain period of time (about 2 to 4 seconds) due to the charge in the capacitor C3.

Therefore, if you operate the daylight control lever back and forth between "HL" and "HF" within this time, the headlamp relay 6
Since the day relay 13 turns ON and OFF at the same time according to the operation, the high beam head lamps 15u and 16u of the headlamps 15 and 16 flash.〇The last bashing operation using the day time control lever is completed (
After a certain period of time (2 to 4 seconds) after the contacts HF1 and HF2 are open (open state), the transistors Tr1, Tr2,
Tr3 is turned OFF, the operation of relay 21 is stopped, and contact T21 is closed.

Therefore, the retractor motors M1 and M2 are started by the same action as when the lighting control lever is changed from the "UP" position to the "OFF" position, and the headlamp 15.16
After the retractor motors M1 and M2 are hidden, the retractor motors M1 and M2 stop driving.

Also, turn the lighting control lever from the “H” position to the “OF” position.
Even if you switch to the F" position all at once, the contact T21 of the relay 21 will not close until after a certain period of time, so the headlamp 15
, 16, after the tail lamp 12 is turned off, the retractor motors M1 and M2 are driven and the head lamps 15 and 16 are hidden.

Note that this embodiment can also be applied to a device in which the retractor motor rotates in forward and reverse directions, or a device in which the retractor motor drives a cover that covers the headlamp body.

As explained above, if the concealed headlamp device according to the present invention is used, the left and right headlamps will not turn on unless they are completely exposed, so in particular, the irradiation surface of the headlamp will be directed toward the upper side of the vehicle. This has an excellent effect in that even vehicles equipped with headlamps that are exposed in the forward direction do not emit dazzling light to oncoming vehicles.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram showing an embodiment of a concealed headlamp device according to the present invention, and FIG. 2 is a sectional view of a main part of the retractor motor shown in FIG. 1. 1... Battery, 5... Tail lamp relay, 6... Head lamp relay, 8, 9... Brake relay, 10...
...Light retract control relay circuit, 12...
Tail lamp, 13... Day relay, 15.16...
Headlamp, 17, 18...Light switch, 19.
20... Retractor switch, 21... Relay, 22...
...Lighting switch, 23...Daima switch, M
1, M2...Retractor motor.

Claims (1)

[Claims] 1. A plurality of independent headlamps that are installed on the vehicle body so that they can be hidden or exposed, a headlamp lighting circuit that lights up the headlamps, a motor that drives the headlamps to conceal or expose them, and a motor drive circuit that drives the motors. In the concealed headlamp device, the motor and the motor drive circuit are provided corresponding to each headlamp, and each motor drive circuit is operated in accordance with the drive of each motor to conceal or hide each headlamp. A tractor switch is provided to cut off each motor drive circuit after exposure driving, and a light switch is provided in the headlamp lighting circuit to operate in response to driving of each motor and close the lighting circuit of each headlamp after exposure driving of each headlamp. A concealed headlamp device characterized by being provided with.