JPS58209632A - Room lamp circuit for car - Google Patents

Abstract

PURPOSE:To permit a driver to light a room lamp without varying his or her driving posture by connecting a lighting switch in parallel to a room lamp switch and a door switch and providing the lighting switch on an instrument panel and the like. CONSTITUTION:A lighting switch 8 is connected in parallel to the circuit of a fuse 3, a room lamp switch 5, and a door switch 6 through an ignition switch 7 together with a fuse 9 and a diode 10. Besides, the lighting switch 8 is provided in an instrument or console box section and can light and light out a room lamp 4 by the operation of the same switch 8 instead of the room lamp switch 5. As a result, when a driver lights the room lamp 4 while he or she is driving a car, he or she can easily operate the switch 8 with hardly varying his or her driving posture and can perform safety driving.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a room lamp circuit for a vehicle that allows a room lamp to be easily turned on while driving.

The vehicle's room rung is installed on the ceiling, and can be turned on or off by manually turning on and off a switch installed near the room rung.It can also be turned on and off in conjunction with the vehicle door. The system is equipped with a switch that automatically turns the lights on or off in response to the opening and closing of the door, which is convenient when the ignition key is inserted at night. The diagram shows the room lamp circuit of a conventional vehicle, where 1 is a batch IJ-12H fusible link, 3 is a fuse, 4 is a room lamp, and 5 is an O
The room lamp switch operates in three modes: N, OFF, and DOOR. 6 is a door switch that responds to the opening and closing of the vehicle door and turns on when the door is opened and turns off when it is closed, and sets the room lamp switch 5 to the ON mode. Then room rung 4 lights up, turns off when set to OFF mode, and DO
When set to OR mode, room rung 4 lights up when the door is opened and turns off when the door is closed. The OFF mode of the room lamp switch 5 is a mode to prevent the room lamp 4 from turning on when the door is opened during the day, and the DOOR mode is a mode to make it turn on when the door is opened at dusk or at night. The ON mode is a mode in which the light does not turn on without opening the door.

By the way, while driving at night, there may be times when you want to temporarily brighten up the interior, such as when preparing coins before a toll booth.In such cases, the driver should operate the interior lamp switch himself. There are many. In that case, you can stretch your left hand backwards while doing the 7-ndle operation with your right hand.

Operating the lights requires twisting your body and changing your driving position, which is not good for safe driving.

The present invention has been made in view of the above points, and is a vehicle having a manually operated room lamp switch connected in series with a room lamp, and a door switch that turns on and off the room lamp in response to opening and closing of the door. To make it easy to turn on the room lamp while driving, a lighting switch is connected in parallel with both the room rung switch and the door switch, and its operation section is installed on the instrument panel or console. It is set up in the department.

The present invention will be explained below based on the drawings.

FIG. 2 shows an embodiment of a room rung circuit according to the invention, in which the same reference numerals as in FIG. 1 indicate the same components. In this embodiment, a lighting switch 8 is connected via an ignition switch 7 to a fuse 9, a diode 10, a fuse 3, a room lamp switch 5, and a door switch 6 in parallel. The lighting switch 8 is provided in the instrument console box, and the lighting switch 8 is installed in the room lamp 4 instead of the room lamp switch 50.
This is a switch to turn on and off the light. Furthermore, when the room rung switch 5 is in the ON mode or the DOOR mode and the room rung 4 is in the lighting state, when the ignition switch 7 and the lighting switch 8 are turned on, the diode 10 causes a current to flow from the battery 1 to the room rung 4. This is a diode to prevent the current from flowing into other loads connected to the fuse 9.

In this way, in addition to the room lamp switch 5, the lighting switch 8 for turning on and off the room lamp 4 is installed near the driver's seat, such as in the instrument or console box. When turning on the rung 4, the switch 8 can be easily operated while operating the steering wheel without changing the driving posture. In addition, since the ignition switch 7 is connected in series with the lighting switch 8 via the fuse 9, if the room light 4 is turned on by operating the light switch 8, the room light 4 can be turned off when exiting the vehicle. Forgetting can be prevented.

FIG. 3 shows another embodiment of the room rung circuit according to the invention, in which the same reference numerals as in FIG. 2 indicate the same components. In this embodiment, in order to turn on and off the room lamp 4 instead of operating the room lamp switch 5, a lighting switch 8 provided on the instrument or console box is connected in parallel to the room lamp switch 5 using a ζ switch. , and others are exactly the same as the conventional example shown in FIG. In this way, the lighting switch 8 for turning on and off the room rung 4 is provided in the instrument panel or console box part, which is much closer to the driver's seat than the room rung switch 5, so that it can be used while driving as in the first embodiment. The lighting switch 8 can be easily operated.

In this embodiment, the lighting switch 8 is provided in the instrument or console box, but it may be provided in another position that is easy for the driver to operate, for example, in the armrest.

As explained above, the present invention provides a room rung circuit for a vehicle that includes a manually operated room rung switch connected in series with a room rung, and a door switch that turns on and off the room rung in response to opening and closing of the door. In 7., both the room rung switch and the door switch. A lighting switch is connected in parallel with the light switch, and its operation part is placed in a position that is easy for the driver to operate, such as on the instrument panel or console, making it easy to turn on the room lamp while driving.

Therefore, when the driver turns on the room lamp while driving, there is no need to operate the room lamp switch provided on the ceiling, which is advantageous for safe driving because the driver's posture is hardly distorted. In addition, in vehicles where the rear seats are relatively far from the front seats, if the lighting switch according to the present invention is also installed on the armrest of the rear seat, it will be possible for the passenger sitting in the rear seat to turn on the room lamp. makes it easier to light the lamp.

[Brief explanation of drawings]

FIG. 1 shows an example of a conventional vehicle room lamp circuit, FIG. 2 shows an eleventh embodiment of the room lamp circuit according to the present invention, and FIG. 3 shows another embodiment of the room lamp circuit according to the present invention. 1...Battery, 2...Fusible link, 3
．． 9...fuse, 4...room lamp, 5...
Room lamp switch, 6...door switch. 7... Ignition switch, 8... Lighting switch. Patent applicant: Nissan Motor Co., Ltd. Agent: Patent attorney: Hiroshi Suzuki

Claims (1)

[Claims] In a room lamp circuit having a manually operated room lamp switch connected in series with a room lamp, and a door switch that turns on and off the room lamp in response to opening and closing of a door, the room lamp switch and the door switch A room lamp circuit for a vehicle, characterized in that a lighting switch is provided in parallel (connected) with both switches, and the operation part is disposed in the instrument panel or console part of the vehicle.