JPH0141624Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is a lighting device for a fender marker that is installed on the fender part of a car body and is used to clearly indicate the width of the vehicle in front of the car body and improve its visibility. It is related to circuits.

(Prior Art) Conventionally, a light-emitting diode or other light-emitting element (hereinafter referred to as a "light-emitting element") has been built-in to clearly indicate the attachment part of the fender marker at night.
A light-emitting fender marker has been proposed that can be turned on by operating a switch circuit wired to the driver's seat side as desired.

(Problem that the invention aims to solve) However, the above-mentioned conventional fender marker has a lighting circuit that is independent from other lamps installed in the car, so the device requires switches, resistors, and connections. The number of wires and other circuit parts has increased, and the number of man-hours required for assembling the vehicle has also increased, resulting in poor workability.
In addition, the power supply to the light emitting part of the fender marker has traditionally been directly connected to the power supply circuit of the vehicle's lighting system, often the clearance lamp, due to the usage time and purpose. Even if the core was broken, the light-emitting part of the fender marker remained lit, making it difficult to confirm from the driver's seat whether the clearance lamp was not lit.

In view of the above problems, the present invention uses the lighting circuit of the fender marker in common with the lighting circuit of the clearance lamp on the vehicle side, thereby reducing the number of circuit parts and assembly man-hours. This paper proposes a fender marker lighting circuit that can also serve as a fender marker lighting circuit.

(Means for Solving the Problems) The fender marker lighting circuit according to the present invention is a clearance lamp switch circuit configured to turn on or off by turning the switch ON or OFF, which is connected in parallel to the switch. A resistor with a predetermined capacitance and a light emitting element are connected, and a diode for bypassing surge voltage is connected in parallel to the light emitting element, and a resistor with a predetermined capacitance is connected between the diode, the light emitting element, and the clearance lamp. We are taking measures such as intervening vessels.

(Function) When the switch is turned on, a resistor connected in parallel to the light emitting element generates a required voltage on the light emitting element side, and the clearance lamp and the light emitting element are lit simultaneously. Furthermore, if the clearance lamp is disconnected while the switch is turned on, the light emitting element will also turn off, giving a warning that the clearance lamp is not lit. Even if the switch is turned on with the clearance lamp broken, the light-emitting element will not light up, making it possible to confirm that the clearance lamp is broken. Note that the negative surge current generated when the clearance lamp is broken is bypassed by the diode to prevent destruction of the light emitting element.

(Embodiment) A preferred embodiment of the fender marker lighting circuit according to the present invention will be described below.

In the drawings, reference numeral 1 denotes a marker main body made of ABS resin or the like, and a hollow, substantially rectangular cylindrical fixed body 2 is formed integrally or integrally with the marker main body 1 on the lower surface. This fixed body 2 has a bulging part 2a on one side of the front and back, and a resilient part 2b on the opposite side, and the maximum protruding diameter between the two is larger than the mounting hole B transparently provided in the vehicle body A. When the marker main body 1 is assembled onto the vehicle body A via the seat packing 3, the locking end of the resilient portion 2b is hooked to the inner peripheral edge of the mounting hole B, and The bulging part 2a is press-fitted into the inner peripheral edge of the mounting hole B, and the joining recess 2c between the lower surface of the marker main body 1 and the bulging part 2a
The inner peripheral edge of the mounting hole B is inserted into the mounting hole B, and the fixing body 2 is locked in the mounting hole B by the repulsive force of the resilient portion 2b.
Moreover, the marker main body 1 can be fixed on the vehicle body A. Further, the fixed body 2 is configured to house a circuit structure necessary for lighting the light emitting element 4 housed in the marker main body 1, and 5 connects the light emitting element 4 and other circuit elements 6 by wiring. 7 is a lens that covers the upper part of the marker main body 1 and forms a light emitting part 7a in a predetermined direction. In this embodiment, the outer peripheral portion of the lens 7 is further covered with a protective cover 8 for the lens 7, but this is not necessarily required.

FIG. 2 shows the configuration of the lighting circuit C connected by wiring on the printed circuit board 5, and shows the configuration of the lighting circuit C that is connected by wiring on the printed circuit board 5.
In a switch circuit for a clearance lamp 10 that turns on or off when turned off, a resistor R1 of a predetermined capacity connected in parallel and a light emitting element 4 are connected to the switch 9, and a required voltage is taken out to the light emitting element 4 side. , a diode 11 is provided in the light emitting element 4.
Connect in parallel. That is, the light emitting element 4, particularly the light emitting diode, is generally susceptible to surge voltage and current, and if this is applied seriously, the light emitting diode itself may be destroyed. The diode 11 is for protecting the light emitting element 4 by bypassing the negative surge current generated when the clearance lamp 10 is disconnected, and is connected to the clearance lamp 10 together with the light emitting element 4 via a resistor R2 having a predetermined capacity.
connected to the side. In this embodiment, if there is a voltage drop to the clearance lamp 10 side by inserting the resistor R1, the clearance lamp 10 itself should have a rating lower than that of a normal automobile lamp. can be used to achieve the same brightness as conventional lamps.

The fender marker D according to the present invention is a code 1 of the clearance lamp 10 as shown in FIG.
It is also possible to provide a so-called outage structure in which a core breakage sensor unit 13 is disposed on the second side and connected to the core breakage sensor unit 13 via a connector 14.

(Effects of the invention) Since the fender marker according to the present invention is constructed as described above, the lighting circuit in the light emitting part of the fender marker is simplified, and the workability of assembling the fender marker to the automobile is improved, and the fender marker can be used as a clearance lamp, etc. It has excellent effects after implementation of the present invention, such as being able to be used as a core breakage confirmation light for an automobile lighting device.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing one embodiment of a fender marker according to the present invention, FIG. 2 is a lighting circuit diagram of a light emitting element, and FIG. 3 is an explanatory diagram showing a method of connecting a fender marker to a clearance lamp. . 4... Light emitting element, 9... Switch, 10... Clearance lamp, 11... Diode, R1,
R2...Resistor, C...Lighting circuit.

Claims (1)

[Scope of utility model registration request] In a switch circuit for a clearance lamp that blinks when a switch is turned on and off, a resistor of a predetermined capacity and a light emitting element are connected in parallel to the switch, a diode is connected in parallel to the light emitting element, and the diode is connected in parallel to the light emitting element. and a lighting circuit for a fender marker, characterized in that a resistor of a predetermined capacity is interposed between the light emitting element and the clearance lamp.