JPS5932530A - Illuminating device in automobile compartment - Google Patents

Abstract

PURPOSE:To illuminate a vehicle compartment, effectively in accordance with the purpose of use, by enabling the control mode of two lamps to be changed- over between a condition in which the lighting-on and -off of two lamps are controlled by a door switch and another condition in which both lamps are not lit- on even if the door switch is closed. CONSTITUTION:When a movable contact 17 is turned into a position between stationary contacts 19a, 19b by operating a control lever, both ridges 19a, 19b are made into contact together, and therefore, a first lamp is maintained to be lit-on, irrespective of the turning-on and -off condition of a door switch 21. When the movable contact 17 is turned into a position between stationary contacts 19b, 19c, both lamps 4, 5 are lit-off even if the door switch 21 is closed by opening a door. When the movable contact 17 is turned into a position between stationary contacts 19c, 19d, both first and second lamps 4, 5 are connected to both poles of a power source 20 through the movable contact 17, a coil spring 18, etc., and therefore, the lighting-on and -off of both first and second lamps 4, 5 are controlled in accordance with the opening and closing of the door switch 21.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a lighting device for the interior of an automobile.

Conventional configurations and their problems Conventional lighting devices that illuminate the interior of automobiles include spot lighting that illuminates the driver's seat and passenger seat in the automobile interior; There is general lighting that illuminates all seats, and independent lamps are used for each of these lights. and,
Illumination is provided according to the purpose of use by switching between the lamps for spot illumination and the lamps for general illumination using separate switches. However, in the case of the above-mentioned lighting system, spot lighting and general lighting are performed using separate lamps, which makes them expensive, and when used, independent switches must be operated individually depending on the purpose of use. Therefore, there was a problem in that the switch operation became extremely complicated.

OBJECT OF THE INVENTION The present invention overcomes these conventional drawbacks.
To provide an illumination device which can serve as a lamp for both spot illumination and general illumination and can easily switch between these lamps.

Purpose of the Invention In order to achieve the above object, the present invention uses two lamps for spot illumination of the driver's seat and passenger's seat for general illumination, and one of these two lamps is turned on independently. A simple switch device can be used to switch between a state in which the blinking of both lamps is controlled according to the opening and closing of the door switch, and a state in which both lamps do not light even when the door switch is closed. It is designed so that it can be used for lighting.

That is, the lighting device of the present invention includes five fixed contacts, a movable contact that is sequentially connected between adjacent fixed contacts, and two lamps connected to a selected one of the fixed contacts. When the movable contact is brought into contact with two places between the fixed contacts, one and the other of the two lamps are lit independently, and the movable contact is brought into contact with one of the remaining fixed contacts. When the movable contact is connected to the other one of the remaining fixed contacts, the blinking of the above two lamps is controlled according to the opening and closing of the door switch. The present invention is characterized by a lighting device for the interior of an automobile, which is configured so that the two lamps are both turned off regardless of whether the door switch is opened or closed.

Description of examples An embodiment of the present invention will be described below with reference to the drawings.

Figure 1 shows how the lighting system is installed in the vehicle interior.A lighting system 2 is installed on the ceiling 1 of the vehicle interior, and two lamps provided inside the lighting system 2 illuminate the left front seat and the right front seat. and illuminates the rear seats.

FIG. 2 shows the external appearance of the lighting device 2, in which 3 is a case, and 4 and 6 are first lights provided in the case 3. The second lamp, 6, is the first lamp. The operating lever 7°8 is for switching and controlling the blinking of the second lamp 4.5. Second lamp4.
An opening 9 is used to separately condense the light from the first . A transparent plate that transmits light to illuminate the rear seat even when either of the second lamps 4 and 6 is turned on; 10 is a grounding plate provided in the case 3;
1.12 is a screw that attaches the case 3 to the ceiling 1 while in contact with the ground plate 10, and substantially grounds the ground plate 10.

3 and 4 show the internal structure of the lighting device 2 and its connection state, where 13 is an insulating board made of resin or the like that is attached to the case 3 with screws 14, and 15 is an insulating board fixed to the insulating board 13. The pin 16 is made of a conductive material and is attached to be rotatable around the pin 16, and the rotary plate has a cavity with a tapered opening, and the pin 17 moves to the tapered part in the cavity of the rotary plate 16. A movable contact consisting of a freely attached conductor,
18 is a conductive coil spring 13 which is housed in a compressed state between the pin 15 and the movable contact 17 in the cavity and always biases the movable contact 1 in the direction of protrusion;
a to 136 are protrusions 1 that are integrally provided on the insulating substrate 13;
9tL-196 are fixed contacts 2Q attached to the insulating substrate 13 so as to embrace each protrusion 132L-13el.
21 is a door switch that closes when the door is opened and opens when the door is closed; 22 to 26 are lead wires. The operating lever 6 and the rotating plate 16 are integrally connected, and the rotating plate 16 also rotates around the pin 16 in response to the rotating operation of the operating lever 6. Also 6
At the tips of the fixed contacts 19a to 1913, semicylindrical protrusions 19 &'-1951' are integrally provided at positions as shown in FIGS. 3 and 4, respectively. Further, the rear ends of the fixed contacts 19&, 19e at both ends are directly soldered to the ground plate 10.

The rear ends of the remaining fixed contacts 19b, 190, 19d are projected to the rear of the insulating board 13 and are connected by lead wires 22 to 26 as shown in FIG. 4, and the door switch 21 is connected to the pin 16 by the lead wire 26. It is connected.

In the above configuration, when the operating lever 6 is first operated to bring the movable contact 17 into contact between the fixed contacts 19& and 19b,
This movable contact 17 is the protrusion of each fixed contact 1ga, 19b.
"+19b', the positive terminal of the '-L source 2o and the ground plate 100 are not connected, and only the first lamp 4 is lit. At this time, regardless of whether the door switch 21 is open or closed, the first lamp Lamp 4 continues to light up.

Next, when the movable contact 1 is brought into contact between the fixed contacts 19b and 19c, the protrusions 19b' and 19C' must not contact the 1st and 2nd contacts. Lamp 4.
Neither the sij nor the lamps are turned on, and the lamps 4 and 5 are turned off even when the door is opened and the door switch 21 is closed.

Next, when the i+J moving contact 17 is connected between the fixed contacts 190 and 196, the first. Second lamps 4 and 5; both [
It is connected between the two poles of the source 20 through the ear contact 1, the coil spring 18, the pin 15, the lead wire 26, and the door switch 21. Therefore, the blinking of the first and second lamps 4 and 5 is controlled according to the opening and closing of the door switch 21.

Next, when the movable contact 17 is connected between the fixed contacts 19d and 1ge, only the second lamp 6 lights up.

At this time, the second lamp continues to be lit regardless of whether the door switch 21 is opened or closed.

Effects of the Invention As described above, the present invention provides two lamps for spot illumination that also serve as general illumination in the interior of the vehicle, and consists of six fixed contacts and a movable contact that makes rolling contact between the fixed contacts. A state in which one or the other of the above two lamps is lit independently by a switch, a state in which the flashing of both lamps is controlled by a door switch, and a state in which both lamps are lit even when the door switch is closed. Since the system is designed to be able to switch between the off and off states, it is possible to effectively illuminate the interior of the vehicle depending on the purpose of use.
Since there is no need to use char, the device itself can be made faster.

[Brief explanation of the drawing]

The drawings all show one embodiment of the present invention, and FIG. 1 is a side view showing the lighting device installed in the vehicle interior;
FIG. 2 is a perspective view of the illumination device, FIG. 3 is a perspective view of its main parts, and FIG. 4 is its electric circuit diagram. 4.5... 1st. Second lamp, 17...
・Movable contacts, 19a to 19e...Fixed contacts, 2
0...Power supply, 21...Door switch. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 1 Figure 2 Cause 3 Figure 4 140-

Claims (1)

[Claims] It is equipped with five fixed contacts, a movable contact that is sequentially rotated between adjacent fixed contacts, and two lamps connected to a selected one of the fixed contacts, and the movable contact is connected to the fixed contact. When the movable contact is connected to one of the remaining fixed contacts, one and the other of the two lamps are lit independently, and when the movable contact is connected to one of the remaining fixed contacts, -
Note: When the blinking of the two lamps is controlled according to the opening and closing of the door switch, and when the movable contact is connected to the other one of the remaining fixed contacts, conduction to the two lamps is interrupted. A lighting device for an automobile interior, characterized in that both of the two lamps are turned off regardless of whether the door switch is opened or closed.